WO2018159281A1 - Bed device - Google Patents

Abstract

Provided is a bed device with which a bed baseplate can be inclined in left and right directions when a back bed part is in a raised state. This bed device is provided with: a swinging frame which is supported on a bed frame in such a way as to be capable of inclining, and on an upper surface of which a bed baseplate is provided; a drive source for swinging which drives the swinging frame in such a way as to incline in a width direction; a drive source for back lifting which is provided on the swinging frame and drives one end portion side in the longitudinal direction of the bed baseplate to be raised or lowered; and a control device which controls the inclining drive of the swinging frame and the raising and lowering drive of the bed baseplate. The control device controls the drive source for swinging and the drive source for back lifting in a manual mode in which, when either one of the swinging frame and the bed baseplate is in a horizontal state, the other can be driven, and a manual restricted mode in which, when either one of the swinging frame and the bed baseplate are driven in a restricted range, the other can be driven in a restricted range.

Description

Bed equipment

This invention relates to the bed apparatus of the structure which can drive the floor board body which a user lies on up and down drive, back raising drive, or the rocking | swiveling drive in the width direction.

For example, a user such as an elderly person or a sick person who cannot turn over or wake up by himself / herself must remain supine for a long time on the mattress of the bed apparatus. When the user is in a supine posture for a long period of time, the back of the body, especially the buttocks, may cause a so-called bed slip and increase pain.

It is preferable to change the posture of the user as appropriate to prevent bed slipping. In order to be able to change the posture of the user as appropriate, for example, bed apparatuses disclosed in Patent Documents 1 to 4 have been proposed. The bed apparatuses described in Patent Documents 1 to 4 have a base frame, and an upper and lower frame is provided on the base frame so as to be vertically movable. A swing frame (rotating frame) is supported on the upper and lower frames so as to be tiltable in the width direction. The swing frame is driven to tilt in the width direction with one end or the other end in the width direction as a fulcrum by a swing drive mechanism provided on the upper and lower frames.

For example, a floor plate body is provided on the upper surface of the swing frame described in Patent Document 1. The floor plate body has a central floor plate and side floor plates connected to both sides of the central floor plate so as to be rotatable only in the upward direction. The central floor board is divided into a plurality of floor portions in the longitudinal direction and is connected to each other so as to be rotatable. Of these, one floor located substantially in the center in the longitudinal direction is fixedly attached to the swing frame.

Therefore, when the swing frame is driven in the tilt direction by the swing drive mechanism, the lower surface of one side floor plate located at one end in the width direction, that is, the lower side in the tilt direction, is at the end in the width direction of the upper and lower frames. It abuts against the abutting member provided and bends in the direction opposite to the tilting direction of the swing frame, that is, upward.

As a result, if the swinging frame is tilted in the left-right direction, a user such as a patient who is supine on the floorboard body is prevented from falling from the floorboard body shape by the side floorboard bent upward. Therefore, humiliation is prevented.

The swing frame is provided with a undulation drive mechanism that drives the floor plate up and down (back raising drive and leg raising drive). This undulation drive mechanism is driven in the raising direction from a horizontal state in which the floor portion divided into a plurality of floor plates is horizontal. Thereby, the user who is supine on the floor board is supported in a state where the upper body is raised by the floor.

By the way, when the patient who is supine on the floorboard body, for example, assists in eating or nursing, the undulation drive mechanism may be activated to raise the user's upper body. In addition, it may be required to tilt the body of a patient who has raised his upper body sideways.

As a specific example, contents such as stomach during tube feeding, or after tube feeding, in which liquid food is administered to a patient who is impossible or insufficient for oral intake using a tube passed from outside the body into the digestive tract In order to regulate the flow of objects, it may be required to maintain the patient's body in the above-described posture.

Also, for example, in the swing frame described in Patent Document 2, support rollers are provided rotatably at both ends in the width direction of one end surface and the other end surface in the longitudinal direction with the axis line horizontal. At both ends in the longitudinal direction of the support frame, horizontal ridges are installed in the width direction, and a pair of receiving members each having an arc-shaped concave portion opened on the upper surface is fixedly attached to these horizontal ridges.

The pair of support rollers provided on both end surfaces in the longitudinal direction of the swing frame are engaged and supported by the recesses of the receiving member. At one end in the longitudinal direction of the support frame, a horizontal gutter is further installed in parallel with one horizontal gutter, and a swing frame is engaged with the pair of horizontal gutters at one end in the width direction engaged with the recess of the receiving member. Oscillation driving means for oscillating in the width direction about the roller or the support roller on the other end side is provided.

The rocking drive means has a rocking drive source and a link mechanism driven by the rocking drive source. The link mechanism is provided with a pair of connecting links that are driven in the vertical direction by pivoting the link mechanism by a swing drive source. The other end of each connecting link is pivotally attached to a support shaft of a pair of support rollers provided on one end surface in the longitudinal direction of the swing frame.

The pair of connecting links are driven in the upward direction from the descending position in a state where one of the connecting links has the longitudinal direction aligned in the vertical direction according to the direction in which the link mechanism is driven. At that time, the other connecting link stands by at a position where it does not move up and down (downward position).

Therefore, if the link mechanism is driven in the direction in which one of the connecting links is lifted by the swinging drive source, the swing roller is lifted on the side of the support roller connected to the rising connecting ring, for example, tilted to the left. When the other connecting link is driven by the link mechanism in the upward direction, the swing frame is driven to incline in the right direction, which is the opposite direction.

Also, for example, the floorboard body described in Patent Document 3 is provided with a central floorboard and a pair of side floorboards that can rotate only in the upward direction on both sides in the width direction of the central floorboard. The pair of side floor plates are set to a size that protrudes outward from both sides in the width direction of the swing frame.

Normally, the center floor plate and the side floor plate are integrally formed by foaming with resin. That is, the central floor plate and the side are arranged so that the widthwise both sides of the central floor plate and the upper end portions in the thickness direction of the side floor plates in the width direction are connected by a thin portion having flexibility over the entire length in the longitudinal direction. The partial floor board is foam-molded. Thereby, the side floor boards are connected to the central floor board so as to be rotatable only upward from a horizontal state.

When the floorboard body is in a state where the floorboard body is in a horizontal state, only the pair of side floorboards are connected to the central floorboard by the thin-walled portion, the side floorboard is only connected and supported only by the thin-walled portion. It is in the state of. Therefore, in that state, if a load is applied to the upper surface of the side floor board, the thin portion may be broken. That is, only the thin portion cannot connect the side floor plate to the central floor plate so as to be rotatable with sufficient strength.

Therefore, conventionally, a plurality of horizontal members such as pipe members are fixedly arranged in the longitudinal direction at predetermined intervals on the lower surface of the central floor plate of the floor plate body. The reed material is formed longer than the width of the central floor. Longitudinal material is connected to both ends of the horizontal material, that is, the end of the horizontal material located on the lower surface side of the side floor board. As a result, when the floor plate body is in a horizontal state without being swung, the lower surface of the side floor plate is supported by the vertical member, so that the thin wall portion is not damaged by the load applied to the upper surface. Strength is obtained. That is, conventionally, a reinforcing member made of a vertical hook material and a horizontal hook material is provided over the entire lower surface of the central floor board.

JP 2003-111804 A JP 7-298957 A JP 7-298957 A Japanese Patent Laid-Open No. 7-459

The bed apparatus that can drive the floor plate body that the user lies up and down, swings up in the width direction, or swings in the width direction has a more complicated configuration than conventional bed apparatuses, and thus has various problems. Yes.

For example, in the bed apparatus described in Patent Document 1 used in hospitals or the like, side fences 1102 are detachably attached to both sides (or one side) of the upper and lower frames 1101 as necessary as shown in FIG. It is done. As is well known, the side rail 1102 prevents a patient lying on the floor plate 1103 placed on the upper and lower frames 1101 from falling from the bed apparatus, and the futon hung on the patient slips off. Used to prevent this.

However, with the back floor portion 1104 of the floor plate 1103 raised and the patient's upper body raised, the swing frame 1105 provided in the frame of the upper and lower frames 1101 to tilt the patient's body in the lateral direction. Is inclined in the width direction in which the other end rises with one end portion in the width direction as a fulcrum, and the floor plate body 1103 tilts together with the swing frame 1105.

As a result, as shown by a chain line in FIG. 10, one end side in the width direction of the back floor portion 1104 of the floor plate body 1103 collides with one side rail 1102. That is, when the angle at which the floor plate body 1103 is inclined in the width direction is larger than a predetermined angle, one end in the width direction, which is the lower side of the inclined direction of the back floor portion 1104 of the floor plate body 1103 that is raised, It will hit you.

Therefore, in the conventional bed apparatus, the swing drive mechanism that tilts the floor plate body 1103 in the width direction and the undulation drive mechanism that drives the floor plate body 1103 in the rising direction from a horizontal state cannot be driven simultaneously. When the floor plate body is tilted, the end of the width direction of the floor plate body is prevented from colliding with the side fence.

However, if the driving in the width direction of the floor plate 1103 and the back raising drive of the back floor 1104 cannot be performed at the same time, the upper body of the patient's body is raised by the bed device during tube feeding as described above. In this state, it is impossible to maintain the posture tilted in the lateral direction. In other words, since the floorboard cannot be tilted with its back raised, assistance during tube feeding may not be performed smoothly and satisfactorily.

In addition, conventionally, in order to maintain the patient's posture in an appropriate state during tube feeding or after tube feeding, the patient's body is raised with the width of the floor plate body 1103 in a state where the back floor portion 1104 of the floor plate body 1103 is raised. For example, the caregiver holds the patient so as to incline, or the posture is inclined by holding a cushion on the back of the patient. As a result, the burden on the caregiver increases and a good posture cannot be reliably maintained.

Also, for example, the swing drive means is provided connected to the support frame and the swing frame. That is, the swing drive source of the swing drive means and the main link of the link mechanism driven by the swing drive source are provided on the support frame, but the motion of the link mechanism is transmitted to the swing frame. The connection link is provided with the other end connected to a support shaft of a support roller provided on one end surface of the support frame.

According to such a configuration, in order to incorporate the swing drive means into the bed apparatus, it is necessary to perform an assembling operation of the link mechanism with respect to the support frame and the swing frame. For this reason, when the bed apparatus is brought into a disassembled home and assembled, it may take time to assemble the bed apparatus, and may require skill because the assembly work is complicated.

On the other hand, in order to facilitate the assembly work at the site, it is also conceivable to bring the swing drive means into the purchaser in a pre-assembled state. However, in that case, the swing driving means, the support frame, and the swing frame are handled in an integrated state. The integrated swing driving means, support frame, and swing frame are heavier and larger in size, so that handling thereof is not easy.

That is, in the conventional bed apparatus having a swing mechanism, it has not been considered that the swing drive means can be easily disassembled and assembled with respect to the frame of the bed apparatus. It was.

Also, for example, on the lower surface of the central floor portion of the floor plate body, a plurality of horizontal members are provided at predetermined intervals in the longitudinal direction, and vertical members are connected to both ends of these horizontal members. A metal material such as a metal pipe is often used for the horizontal member and the vertical member of the reinforcing member so that a predetermined strength can be obtained and the member can be configured at a relatively low cost. For this reason, it is inevitable that the floor plate body provided with the reinforcing member is increased in weight, and it takes time and labor to process the metal material and to assemble the center floor plate.

Furthermore, nursing bed devices often have a back-raising function or a leg-raising function. In the case of a bed apparatus having such a function, the central floor plate and the pair of side floor plates of the floor plate body are divided into a plurality of floor plate portions of a back-raised portion and a leg-raised portion with respect to the longitudinal direction so as to be rotatable. Connected.

When the floorboard body is divided into a plurality of floorboard portions, a reinforcing member made of horizontal and vertical members must be provided for each floorboard portion. Therefore, in such a case, the floor plate body is further increased in weight and the number of parts is increased, and assembling work takes much time.

An object of the present invention is to provide a bed apparatus that can be easily handled, such as operation and assembly, even though the floor plate body can be driven up and down, back-up or swinging. More specifically, the object of the present invention is to allow the patient to be maintained in a suitable posture at the time of tube feeding or after tube feeding, for example, by allowing the floor board to be tilted with the floor plate raised to the back. It is in providing a bed apparatus.

Furthermore, an object of the present invention is to make it possible to easily assemble the swing drive means with respect to the frame, so that it can be carried in a disassembled state where it can be easily assembled. It is to provide a bed apparatus.

Furthermore, an object of the present invention is to enable the central floor plate and the side floor plate to be pivotally connected with sufficient connection strength without incurring the weight of the floor plate body and the complexity of the assembly work. It is to provide a bed apparatus.

The bed apparatus of one embodiment is a bed apparatus provided with a tilting function for inclining the floor board body in the width direction and a back raising function for raising and lowering the floor board body in the longitudinal direction intersecting the width direction. The bed apparatus includes a bed frame, a swing frame, a swing drive source, a back raising drive source, and a controller.
The swing frame is supported by the bed frame so as to be tiltable in the width direction, and a floor plate body is provided on the upper surface. The swing drive source drives the swing frame to tilt in the width direction. The drive source for raising the back is provided on the swing frame, and drives the undulation on one end side in the longitudinal direction of the floor plate body. The controller controls the tilt drive of the swing frame and the undulation drive of the floor plate.
The controller controls the swinging drive source and the back raising drive source in the manual mode and the manual limit mode. In the manual mode, the controller can drive the other when either the swing frame or the floor plate is in a horizontal state. In the manual restriction mode, the controller can drive the other of the swing frame and the floor board in the restricted range while the other is driven in the restricted range.

Moreover, the bed apparatus of one Embodiment comprises the bed frame, the rocking | swiveling drive unit, the rocking | fluctuation frame, and the floor board body. The swing drive unit is detachably attached to the bed frame and has a swing drive source. The swing frame is driven to swing in the width direction intersecting the longitudinal direction by the swing drive unit. The floor plate is provided on the upper surface of the swing frame and is driven to swing in the width direction intersecting the longitudinal direction by the swing drive unit together with the swing frame.
The swing drive unit has a rectangular frame and a pair of transverse members opposed to the frame. In the longitudinal direction, both end portions of the horizontal member are detachably engaged and held by receiving portions provided on a pair of opposing vertical members of the bed frame.

Moreover, the bed apparatus of one Embodiment is equipped with the bed frame, the rocking | fluctuation frame, and the floor board body. The swing frame is swing-driven in a width direction provided on the bed frame and intersecting the longitudinal direction. The floor plate body is provided on the upper surface of the swing frame and is driven to swing in the width direction intersecting the longitudinal direction together with the swing frame.
The floor board body includes a central floor board, a side floor board, and a first receiving member. The central floor board is provided on the upper surface of the swing frame. The side floor boards are disposed on both sides in the width direction of the center floor board, and one end in the width direction is rotatably connected to the center floor board by a hinge. The first receiving member is provided integrally with the hinge, and allows the side floor plate to rotate upward from the horizontal state with respect to the central floor plate and prevents the horizontal floor plate from rotating downward from the horizontal state. .

According to the bed apparatus of one embodiment, it is possible to set the manual restriction mode and drive one of the swing frame and the floor board in a restricted range and drive the other in the same restricted range. It can be tilted sideways with the patient's upper body up. Therefore, it is possible to easily and reliably maintain the patient's body in a suitable posture, for example, at the time of tube feeding or after tube feeding.

Further, according to the bed device of one embodiment, the swinging unit can be swayed by detachably attaching both ends of the pair of side members of the frame body of the swinging drive unit to the receiving part provided on the side member of the bed frame. The drive unit can be detachably assembled to the bed frame.

Therefore, it is possible to easily assemble and disassemble the swing drive unit with respect to the bed frame, and it is possible to easily and quickly carry the bed apparatus and assemble it at the delivery destination. .

In addition, according to the bed device of one embodiment, the side floor board is rotatably connected to the central floor board by the hinge, and the side floor board is rotated upward from the horizontal state with respect to the central floor board. A first receiving member that allows movement and prevents downward rotation from a horizontal state is integrally provided.

Therefore, when the floor board is horizontal, the load applied to the upper surface of the side floor board can be received by the first receiving member only by connecting the central floor board and the side floor board by the hinge, so that the weight of the floor board body can be reduced. At the same time, the load bearing strength of the side floor board can be improved.

FIG. 1 shows a first embodiment of the present invention, and is a perspective view of a bed apparatus in which a back floor portion and a leg floor portion of a floor plate body are raised with the upper and lower frames raised. FIG. 2 is a perspective view of the bed apparatus in which the upper and lower frames are lowered in a state where the rising angle of the back floor portion of the floor plate body is reduced from the state of FIG. FIG. 3 is a perspective view of the bed apparatus in which the floor plate body and the leg floor portion are horizontally laid down from the state of FIG. FIG. 4 is a perspective view of the bed apparatus in which the floor plate body is inclined in the width direction from the state of FIG. 3. FIG. 5 is a block diagram for explaining the drive control system of the bed apparatus. FIG. 6 is a diagram illustrating a remote controller connected to the control device. FIG. 7 is a diagram illustrating a setting controller connected to the control device. FIG. 8 is a flowchart when the bed apparatus is driven in the manual mode by the remote controller. FIG. 9 is a flowchart when the bed apparatus is driven in the manual restriction mode by the remote controller. FIG. 10 is a conventional view for explaining a state where the back floor portion hits the side fence when the back floor portion is raised and the floor plate body is tilted. FIG. 11 is an exploded perspective view showing the bed apparatus according to the second embodiment of the present invention. FIG. 12 is a perspective view of the bed apparatus. FIG. 13 is a plan view of the bed apparatus. FIG. 14 is a front view of the bed apparatus. FIG. 15 is a plan view of the second frame portion of the upper and lower frames in which the swing drive unit is incorporated. FIG. 16 is an exploded perspective view of the swing drive unit and the second frame portion. FIG. 17 is a perspective view of the swing drive unit. FIG. 18 is an exploded perspective view showing a frame body of the swing drive unit and a receiver provided on a second frame portion to which the frame body is detachably connected and fixed. FIG. 19 is a front view of the swing drive unit. FIG. 20 is a front view of the first receiving member provided at the longitudinal end of the upper surface of the transverse member of the swing drive unit. FIG. 21 is a perspective view of the first receiving member. FIG. 22 is a longitudinal sectional view of the first receiving member. FIG. 23 is a block diagram for explaining drive control of various drive sources provided in the bed apparatus. FIG. 24 is a front view showing the swing drive unit with the swing drive mechanism removed, when the swing frame is in a horizontal state. FIG. 25 is a front view showing the swing drive unit when the swing frame is driven in a direction in which one end side in the width direction of the swing frame is lifted, with the swing drive mechanism removed. FIG. 26 is a front view showing the swing drive unit with the swing drive mechanism removed, when the swing frame is driven in the direction in which the other end side in the width direction rises. FIG. 27 is a perspective view of a bed apparatus showing a third embodiment of the present invention. FIG. 28 is a front view of the bed apparatus. FIG. 29 is a side view of the bed apparatus. FIG. 30 is a plan view of the bed apparatus. FIG. 31 is a perspective view of one of the floor boards divided into a plurality as viewed from above. FIG. 32 is a perspective view of the floor board shown in FIG. 5 as viewed from below. FIG. 33 is a perspective view of the exploded hinge. FIG. 34 is a perspective view of the assembled hinge. FIG. 35 is a perspective view in which the second connecting piece of the hinge is rotated upward. FIG. 36 is a view in which the side floor boards are horizontal with respect to the central floor boards connected by the hinges. FIG. 37 is a view showing a state in which the side floor board is rotated upward with respect to the center floor board. FIG. 38 is a view of a part of the floor plate body having the second receiving member provided on the lower surface as viewed from the lower surface. FIG. 39 is a partially broken view along the width direction of the floor board showing the fourth embodiment of the present invention. FIG. 40 is a partially broken view along the width direction of the floor board showing the fifth embodiment of the present invention.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 10. 1 to 4 includes a base frame 101 having a rectangular frame shape. Casters 102 are provided at the four corners of the base frame 101. A stopper petal 103 is provided on one end side of the base frame 101 in the longitudinal direction. By stepping on the stopper petal 103, a pair of casters 102 positioned on one end side in the longitudinal direction are held non-rotatably.

Thereby, the base frame 101 can be moved by the casters 102 and can be held in an unmovable state by stepping on the stopper petal 103.

On the upper surface side of the base frame 101, a rectangular frame-shaped upper and lower frame (mounting frame) 105 larger than the base frame 101 is provided as a bed frame. As shown in FIG. 1, both ends in the longitudinal direction of the upper and lower frames 105 and both ends in the longitudinal direction of the base frame 101 are connected to each other by an upper and lower drive mechanism 106 formed of a link mechanism.

A pair of vertical drive mechanisms 106 in the front-rear direction are coupled to each other by a coupling rod 107, and are driven in the vertical direction in a horizontal state by one vertical drive source 108 shown in the block diagram of FIG. ing.

That is, when the vertical drive mechanism 106 is driven by the vertical drive source 108, the vertical frame 105 is driven in the vertical direction between the raised position shown in FIG. 1 and the lowered position shown in FIGS. It has become.

First mounting portions 110 are provided at both ends in the width direction of the upper and lower frames 105 in the longitudinal direction. In each pair of mounting portions 110, board bodies 111 are erected by detachably inserting leg portions 111a provided at both ends in the width direction. On both sides of the upper and lower frames 105 in the width direction, a plurality of second mounting portions 112 are provided at predetermined intervals in the longitudinal direction.

On both sides of the upper and lower frames 105, two leg portions having side rails 1102 (not shown in FIGS. 1 to 4) similar to the side rails 1102 shown in FIG. The second mounting portion 112 is detachably inserted and held. The attachment portion 112 is configured to be foldable with respect to the side surfaces of the upper and lower frames 105 with the side fence 1102 removed.

As shown in FIG. 1, a swing frame (tilt frame) 115 is provided in the upper and lower frames 105. Rollers 114a (only one is shown in FIG. 1) are provided at one end and the other end of the swing frame 115 in the longitudinal direction. Each roller 114a is rotatably supported by receiving portions 114b (only one is shown in FIG. 1) provided at both longitudinal ends of the inner peripheral portion of the upper and lower frames 105.

As a result, the swing frame 115 is supported so as to be tiltable in the width direction (left and right direction) with a pair of rollers 114a provided at either one end portion in the width direction or both end portions in the longitudinal direction as fulcrums. Yes.

The upper and lower frames 105 are provided with a tilt link mechanism (not shown), and the tilt link mechanism is connected to the swing frame 115. The tilt link mechanism is driven by a swing drive source (tilt drive source) 116 shown in FIG.

When the swing frame 115 is driven by a swing drive mechanism having a swing drive source 116, the swing frame 115 supports a roller 114a provided at one end or the other end in the width direction via a link mechanism. As described above, the end on the side opposite to the fulcrum side is tilted in the ascending direction.

That is, the swing frame 115 is driven to tilt rightward or leftward with one end or the other end in the width direction as a fulcrum. FIG. 4 shows a state where the swing frame 115 is driven to tilt in one direction (left direction).

A floor plate 118 is provided on the upper surface of the swing frame 115. The floor plate body 118 has a center floor plate 119 having a size substantially corresponding to the outer dimension of the swing frame 115, and a pair of side portions connected to both sides of the center floor plate 119 so as to be rotatable only in the upward direction by hinges (not shown). It is comprised from the floor board 121. FIG.

Each floor board 119, 121 is divided into a plurality of floor portions. In the present embodiment, the back floor portions 119a and 121a in which the two portions are integrally connected, and the center floor portions 119b and 121b in which one end is rotatably connected to one end of the back floor portions 119a and 121a, First leg floor portions 119c and 121c having one end rotatably connected to the other ends of the center floor portions 119b and 121b, and one end rotatably connected to the other ends of the first leg floor portions 119c and 121c. The two leg floor portions 119d and 121d are paired with each other.

The center floor portion 119b of the center floor plate 119 is fixed to the swing frame 115. A pair of left and right side floor plates 121 provided on both sides in the width direction of the central floor plate 119 so as to rotate only upward by hinges are contact members 123 (only one side) provided on the upper surfaces on both sides in the width direction of the upper and lower frames 105. The lower surface is abutted and supported by (shown).

When the swing frame 115 is driven by the swing drive source 116 via the tilt link mechanism in the direction in which one side in the width direction rises as shown in FIG. One side floor plate 121 positioned is pushed upward with the lower surface abutting against the abutting member 123. Thereby, one side floor board 121 is bent in a direction rising with respect to the other side in the width direction of the central floor board 119.

The swing frame 115 is provided with a undulation drive mechanism (not shown) on the lower surface side of the floor plate body 118 and a back raising drive source 125 (shown in FIG. 5) for driving the undulation drive mechanism. When the raising drive source 125 drives the undulation driving mechanism, the back floor portions 119a and 121a of the floor plate 118 are driven in the raising direction as shown in FIGS. 1 and 2, and the first and second legs are driven. The floor portions 119c, 121c and 119d, 121d are driven to bend in a mountain shape.

The first and second leg floor portions 119c, 121c and 119d, 121d can be set not to be driven when the back floor portions 119a, 121a of the floor plate 118 are driven in the standing direction. The drive of each drive source 108, 116, 125 is controlled by the control device 127 shown in FIG. Although details are not shown, the control device 127 is provided on the lower surface side of the upper and lower frames 105.

The control device 127 includes a switching control unit 128 that incorporates a storage unit (not shown). A remote controller 129 as a manual operation module and a setting controller 130 as a setting operation module are detachably connected to the switching control unit 128. The remote controller 129 and the setting controller 130 can be detachably engaged with the board body 111 as shown in FIG.

In this embodiment, the controller 127, the remote controller 129, and the setting controller 130 constitute a controller as a control means. As shown in FIG. 6, the remote controller 129 includes back raising operation buttons 131a and 131b for raising and lowering the back floor portions 119a and 121a of the floor plate body 118, as well as first and second leg floor portions 119c and 121c, and Leg raising buttons 132a and 132b for raising and lowering 119d and 121d, buttons for raising and lowering actions 133a and 133b for raising and lowering the upper and lower frames 105, and buttons for tilting action for tilting the swing frame 115 to the right or left. 134a and 134b, and a horizontal button 135 for returning the floor board 118 in a back-up state, a leg-up state or an inclined state to a horizontal state.

As shown in FIG. 7, the setting controller 130 is provided with a display 138 at the top of the front surface. Below the display 138, a power button 139, a switching button 141, a setting button 142, a start / stop button 143, a YES button 144, a NO button 145, and a pair of selection buttons 146 are provided.

When the power button 139 is operated, the display 138 is activated. When the switch button 141 is pressed, the manual mode (or manual limit mode) and the automatic mode can be switched. Switching between the manual mode and the manual restriction mode can be performed by pressing and holding the start / stop button 143. At this time, the manual mode and the manual restriction mode cannot be switched unless the floor plate 118 is in a horizontal state. Therefore, in this case, the switch button 141 is operated after the floor plate body 118 is manually set, that is, leveled by the remote controller 129.

The manual mode is a mode in which the operation is performed by the remote controller 129, and “manual operation” is displayed on the display 138 as being switched to the manual mode. At the same time, the display 138 displays the rising angles of the back floor portions 119a and 121a and the leg floor portions 119c, 121c, 119d, and 121d of the floor plate body 118, the tilt angle in the tilt direction, the rising height of the upper and lower frames 105, and the like. The

When the setting button 142 is pressed while the display 138 indicates that the operation mode is switched to the manual mode by [manual operation], a setting screen is displayed on the display 138. By operating the selection button 146, the YES button 144, and the NO button 145 according to the setting screen, settings such as “operation speed”, “operation prohibition”, “notification by sound” of the operation of the remote controller 129 in the manual mode are performed. It can be performed.

In the manual mode, the remote controller 129 does not limit the undulation drive of the floor plate body 118 and the tilting drive of the swing frame 115 within the maximum driveable range set by an encoder or a limit switch (not shown). Can be done.

In the manual mode, the back floor portions 119a and 121a of the floor plate body 118 can be raised within a predetermined range, in this embodiment, at an angle of 0 to 72 degrees, and the swing frame 115 can be raised at an angle of 0 to 25 degrees. It can be tilted leftward and rightward. Further, the leg floor portions 119c and 121c can be raised at an angle of 0 to 24 degrees. As one end of the leg floor portions 119d and 121d is interlocked with the rise of the leg floor portions 119c and 121c, the entire leg is bent into a mountain shape.

In the manual mode, when the floor controller 118 is driven up and down by the remote controller 129 or the swing frame 115 is driven to tilt, that is, when either one is driven, the other is operated. Driving is restricted so that it cannot be driven.

When the start / stop button 143 is pressed and held in the manual mode, it can be switched to the manual restriction mode. In the manual restriction mode, “manual operation (restriction)” is displayed on the display 138. When the operation mode is switched from the manual mode to the manual restriction mode, this is displayed on the display 138 as [manual operation (restriction)]. In this state, when the setting button 142 is pressed, each function in the manual restriction mode can be set.

In the manual restriction mode, the swing frame 115 is similarly set in a state where the back floor portions 119a and 121a of the floor plate body 118 are raised within a predetermined range, in this embodiment, an angle range of 0 to 15 degrees. Inclination drive can be performed within the range of 0 to 5 degrees within the range of. These drive ranges are set by encoders or limit switches (not shown) as in the manual mode.

In the manual restriction mode, the remote controller 129 has been described so that the back raising angle of the back floor portions 119a and 121a of the floor plate body 118 and the inclination angle of the swing frame 115 are smaller than those in the manual mode by the raising and lowering drive of the floor plate body 118. Limited to range.

As a result, even if the swing frame 115 is inclined in the width direction with the back floor portions 119a and 121a raised, the back floor portions 119a and 121a of the floor plate body 118 as shown in FIG. It is prevented that the back floor part 121a located in the width direction outer side collides with the side fence 1102.

The rising angle of the back floor portions 119a and 121a of the floor plate body 118 and the inclination angle of the swing frame 115 are not limited to the above-described ranges, but the width dimension of the floor plate body 118 and the back floor portions 119a and 121a. This is determined by conditions such as the length dimension of the floor plate 118 and the distance between the floor plate body 118 and the side fence.

When the switch button 141 is operated to switch to the automatic mode, “automatic operation” is displayed on the display 138. If the setting button 142 is pressed in this state, the display 138 becomes a setting screen, and automatic operation can be set. The automatic operation is an operation in which the inclination of the swing frame 115 is converted to the left direction and the right direction at predetermined time intervals.

As for the setting for automatic operation, the setting item displayed on the setting screen is selected with the selection button 146 and the YES button 144 is pressed as in the case of manual operation. If you want to make settings that are not included in the setting items displayed on the setting screen, press the NO button 145 to change the setting items displayed on the setting screen, and press the YES button 144 when the desired setting item is reached. Can be set.

As setting items in the automatic operation mode, the operation time of the swing frame 115 by the swing drive source 116 can be set up to 24 hours, for example, and the tilt angle of the swing frame 115 in the left direction and the right direction can be set as, for example, It can be set in the range of 5 to 20 degrees. Further, the stop time in a state where the swing frame 115 is tilted rightward and leftward can be set in a range of 2 minutes to 6 hours.

If the start / stop button 143 is operated in the state where the automatic mode is switched, it can be confirmed whether or not the automatic operation is started. If the YES button 144 is pressed in this state, automatic operation is started under preset setting conditions. The automatic operation cannot be started when the floor plate body 118 is not horizontal, and in that case, the automatic operation is started after the floor plate body 118 is automatically returned to the horizontal state.

If the start / stop button 143 is pressed during automatic operation, automatic operation stops. When the floor board 118 is not horizontal at the time of a stop, it is started after returning to the level automatically. When the previous automatic operation is terminated halfway and then the automatic operation is resumed by pressing the start / stop button 143, it is possible to select whether to continue the operation from the middle of the previous automatic operation or to resume a new operation. it can.

The operating conditions of the manual mode, manual limit mode, and automatic mode set by the setting controller 130 are stored in a storage unit (not shown) provided in the switching control unit 128 of the control device 127. The data of each operation condition stored in the storage unit of the switching control unit 128 can be copied to a storage medium such as an SD card that is detachably provided in the setting controller 130.

The setting controller 130 can set a plurality of operating conditions for each of the manual mode, the manual limit mode, and the automatic mode, and store them in the storage unit of the switching control unit 128. Thereby, it is possible to select and execute desired operation conditions in each operation mode.

After the operating conditions set in the setting controller 130 are copied to a storage medium, the storage medium can be used to copy to the setting controller having the same structure provided in another bed apparatus. Accordingly, when a plurality of bed devices of the same type are installed as in a hospital or the like, the operation conditions of the plurality of bed devices can be set easily and quickly.

As shown in FIG. 5, an input unit 151 is connected to the switching control unit 128 provided in the control device 127. When the power button 139 of the setting controller 130 is turned on and the operation mode of the bed apparatus B is set to any one of the manual mode, the manual restriction mode, and the automatic mode by the switching button 141, the setting condition of the selected operation mode is set. The data is output from the controller 130 to the switching control unit 128.

When the manual mode is selected as the operation mode, an operation signal corresponding to the operation of each operation button of the remote controller 129 is output to the input unit 151 through the switching control unit 128 based on the operation condition of the manual mode. The operation signal output to the input unit 151 is output to the processing unit 152, processed, and then output to the drive output unit 153. Then, a drive signal corresponding to the operation of the remote controller 129 is output from the drive output unit 153 to each of the drive sources 108, 116, and 125.

Thereby, according to the operation with the remote controller 129, the raising and lowering operation of the floor plate 118, the tilting operation of the swing frame 115, or the vertical drive of the upper and lower frames 105 is performed. In the manual mode, the swing frame 115 cannot be driven in the inclined direction with the back floor portions 119a and 121a of the floor plate body 118 raised as described above.

When the manual restriction mode is selected by the setting controller 130, signals of the back raising angle of the floor board 118 and the inclination angle of the swing frame 115 set by the setting controller 130 are output to the switching control unit 128.

In this state, if the remote controller 129 is operated, the raising and lowering driving of the floor plate body 118 and the tilting driving of the swing frame 115 can be performed simultaneously, but the driving operation is output from the setting controller 130 to the switching control unit 128. The range is limited by the conditions.

That is, the back-up angle of the floor board 118 and the inclination angle of the swing frame 115 are limited to the range set by the setting controller 130. Thereby, the swing frame 115 can be inclined with the back floor portions 119a and 121a of the floor plate body 118 raised.

However, since the rising angle of the back floor portions 119a and 121a and the inclination angle of the swing frame 115 are limited, the raised back floor portions 119a and 121a are described above even if the swing frame 115 is tilted. As such, it does not hit the side fence 1102.

In the automatic mode, the control device 127 determines the operation time of the swing frame 115 by the swing drive source 116 and the tilt drive of the swing frame 115 in the right direction and the left direction based on the conditions set by the setting controller 130. Done through.

Next, the operation in the manual mode and the manual restriction mode of the bed apparatus B configured as described above will be described with reference to the flowcharts shown in FIGS. FIG. 8 is a flowchart for explaining the operation in the manual mode. In step 1 (hereinafter, step is referred to as S), the power button 109 of the setting controller 130 is operated to turn on the power, and in S2, the setting controller 130 is set in the manual mode. to start.

In S3, the operation mode is selected. If YES is selected to select the manual mode from the manual mode and the manual restriction mode, in S4, it is selected whether the floor controller 118 is tilted (turned over) in the left-right direction, turned up, or raised up by the remote controller 129. Asked.

When turning over, that is, when tilting driving of the swing frame 115 is selected, it is asked in S5 whether or not the back floor portions 119a and 121a of the floor plate 118 are horizontal. If YES, in S6, it is asked whether or not the leg floor portions 119c, 121c, 119d, 121d are horizontal. If it is horizontal, that is, YES, in S7, the swing frame 115 can be driven in the left-right direction within a set range, for example, a driveable range of 0 to 25 degrees.

If the legs are raised in S4, that is, the legs raised to drive the leg floor portions 119c, 121c, 119d, 121d are selected, it is asked in S8 whether the floor plate 118 is horizontal with respect to the left-right direction. If YES in S8, that is, if the floor plate 118 is horizontal in the left-right direction, the leg floor portions 119c, 121c, 121c can be driven at 0 to 24 degrees so that the leg floor portions 119c, 121c, 119d, 121d bend in a mountain shape in S9. It is driven in a wide range. If NO in S8, that is, if the floor board 118 is not horizontal, the floor board 118 is driven to be horizontal with respect to the left-right direction in S10, and the process returns to S8.

If the back-up is selected in S4, it is asked in S11 whether or not the floor plate body 118 (the swing frame 115) is horizontal with respect to the left-right direction. If YES, the back floor portion 119a of the floor plate body 118 is determined in S12. , 121a can be raised within a maximum driveable range of 0 to 72 degrees, for example.

If NO in S11, the floor board 118 is driven in the left-right direction within a range of, for example, 0 to 25 degrees and is driven horizontally in S13, and the process returns to S11. If the floors 119c, 121c, 119d, and 121d are not horizontal in S6, after being returned to the horizontal in S9, the floor plate body 118 is driven in the range of 0 to 25 degrees in the direction of tilting left and right in S7. It will be.

That is, in the manual mode, the floor plate body 118 can be driven to raise the back, tilt in the left-right direction (turn over), and raise the legs in a range of angles from 0 degrees to a sufficiently large angle. However, when the floor plate body 118 is not horizontal with respect to the left-right direction, back-up drive or leg-up drive cannot be performed. Further, when the back floor portions 119a and 121a are raised, the floor plate body 118 cannot be driven in the left-right direction.

Thus, when driving in the manual mode, as in the conventional case described with reference to FIG. 10, for example, with the back floor portions 119a and 121a raised at a large angle, the floor plate 118 is moved leftward or rightward. It is possible to prevent the back floor portions 119a and 121a from hitting the side fence 1102 by tilting greatly.

On the other hand, if NO is selected to select the manual restriction mode in [Operation mode selection] in S3, the start / stop button 143 provided in the setting controller 130 is long pressed in S14, and the operation mode of the bed apparatus B is manually restricted from the manual mode. Switch to mode.

In S15, it is asked whether or not all the floor plate bodies 118 are in a horizontal state. If YES, the floor plate body 118 moves from A to A in the manual restriction mode flowchart of FIG. When the floor board 118 is not horizontal, in S16, it is driven to become horizontal by the operation of the horizontal button 135 provided on the remote controller 129 or other operation buttons.

In the flowchart of FIG. 9 showing the manual limit mode, first, in S17, the switch button 141 provided on the setting controller 130 is pressed to select the manual limit mode in the direction of YES. In S18, the remote controller 129 asks which one of tilting in the horizontal direction (turning over), raising the legs, and raising the back of the floor board 118 is selected.

When turning over, that is, when tilting drive of the swing frame 115 is selected, the floor plate 118 can be tilted in the range of 0 to 5 degrees in the left-right direction by operating the remote controller 129 in S19. In other words, in the manual restriction mode, it can be tilted in the left-right direction within a range of a small tilt angle compared to the range of 0 to 25 degrees in the manual mode.

Even if the leg raising operation is selected in S18, the leg raising operation is prohibited in S20 in the manual restriction mode, and the process returns to S18. If the back-up is selected in S18, even if the floor plate 118 is inclined in the left-right direction in S21, the back floor portions 119a and 121a have an angle of 0 to 15 degrees which is smaller than 0 to 72 degrees in the manual mode. Can be raised in range.

As a result, the upper body of the patient who is supine on the floor plate 118 is raised, and can be tilted in the range of 0 to 5 degrees to the left or right in that state. Therefore, the patient is suitable for tube feeding. It can be easily and reliably maintained in the correct posture. In the operation sequence of S18, the tilt drive in the left-right direction of the swing frame 115 in S19 is performed first, and the back-up drive in S21 is performed later, but either may be performed first.

When the normal manual mode is selected in S17, the start / stop button 143 provided in the setting controller 130 is long pressed in S22. In S23, it is asked whether or not all the parts of the floor board 118 are horizontal. If YES, the operation returns to B in the flowchart shown in FIG. 8 from B and can be operated in the manual mode.

If NO in S23, in S24, the floor board 118 is leveled by the operation of the horizontal button 135 or other operation button provided on the remote controller 129, and then the process returns to S23. Returning to B in the flowchart, the operation in the manual mode becomes possible. As described above, in the bed apparatus B configured as described above, the setting controller 130 can switch the manual mode, the manual limit mode, or the automatic mode to control the driving of each unit.

In the manual mode, the back floor portions 119a and 121a of the floor plate 118 can be driven in the raising direction within a range of 0 to 72 degrees, and the first and second leg floor portions 119c and 121c are within a range of 0 to 24 degrees. Can be tilted. Further, the swing frame 115 can be tilted in the range of 0 to 25 degrees leftward or rightward. However, unless the back floor portions 119a, 121a and the first and second leg floor portions 119c, 121c, 119d, 121d are in a horizontal state, the swing frame 115 cannot be tilted in the left-right direction. ing.

On the other hand, in the manual restriction mode, the swing frame 115 can be tilted in the left-right direction even when the back floor portions 119a and 121a of the floor plate body 118 are raised. However, the rising angle of the back floor portions 119a and 121a is limited to a range of 0 to 15 degrees, which is sufficiently smaller than that in the manual mode, and the tilt angle of the swing frame 115 in the left-right direction is 0 to 5 Limited to a range of degrees.

Therefore, even if the driving angle between the back floor portions 119a and 121a and the swing frame 115 is within a limited range, the back floor portions 119a and 121a are raised, and the swing frame 115 is inclined, as described above. Thus, the patient can be easily and reliably maintained in a posture suitable for tube feeding.

In addition, since the back floor portions 119a and 121a are raised and the inclination angle of the swing frame 115 is limited to a sufficiently small angle range as compared with the manual mode, the back floor portions 119a and 121a are Even when the swinging frame 115 is tilted in the raised state, the back floor portion 119a, as in the conventional example shown in FIG. It is possible to prevent the 121a from colliding.

In the above-described embodiment, the raising angle of the back floor in the manual restriction mode is 0 to 15 degrees, and the tilt angle of the swing frame in the left-right direction is 0 to 5 degrees. What is necessary is just to be in the range where the back floor portion does not hit the side fence when the swing frame is tilted with the back floor portion raised.

In other words, the raising angle and the inclination angle are the distance between the side fence standing at the end in the width direction of the upper and lower frames and the both ends in the width direction of the swing frame, the height of the side fence, or the rise of the back floor. Since it changes according to the conditions according to the length dimension of the part to be raised, etc., it is set according to these conditions, and therefore is not limited to the above-described angle range. In short, in the manual restriction mode, the raising angle and the inclination angle are set smaller than in the manual mode.

Next, the bed apparatus B according to the second to fifth embodiments will be described. The configuration having the same or similar function as the configuration described in the first embodiment is referred to the description of the corresponding first embodiment, and the description here is omitted. In addition, configurations other than those described below are the same as those in the first embodiment.

That is, the bed apparatus B of the second to fifth embodiments includes a manual mode in which one of the swing frame and the floor plate body can be driven when the other is in a horizontal state, the swing frame and the floor plate. It is possible to control the drive source for swing and the drive source for raising the back by the manual limit mode in which either one of the body is driven within the limited range and the other is driven within the limited range. Each controller is equipped. As a result, the floor plate body on which the user lies can be driven to move up and down, drive back up and swing in the width direction.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. The second embodiment is different from the first embodiment in that it further includes a swing drive unit that is detachably provided on the bed frame. The swing drive unit has a swing drive source.

FIG. 11 is an exploded perspective view showing the bed apparatus B of the second embodiment, FIG. 12 is a plan view, and FIG. 13 is a front view. The bed apparatus includes a base frame 201. As shown in FIG. 11, the base frame 201 has a pair of vertical members 202 that are spaced apart from each other in parallel, and both longitudinal ends of the vertical members 202 are connected by horizontal members 203 to form a rectangular frame shape. Yes.

Leg members 204 are provided at both ends of the vertical member 202. At both ends of the horizontal member 203, mounting members 206 having a connecting portion 205 at the upper end are erected. The base frame 201 is provided with an upper and lower frame 209 as a bed frame formed in a rectangular shape having a larger planar shape than the base frame 201 so as to be driven in the vertical direction as described later.

The upper and lower frames 209 are divided into a U-shaped first frame portion 209A and a second frame portion 209B. Each of the frame portions 209A and 209B includes a pair of vertical members 211 and a horizontal member 212 connected to one end of the vertical members 211 in the longitudinal direction.

The pair of vertical members 211 of the first frame portion 209A and the pair of vertical members 211 of the second frame portion 209B are connected so as to be disassembled. Thereby, the upper and lower frames 209 have a rectangular frame shape. A pair of first support portions 215 for inserting and supporting the leg portions 214 of the board body 213 are provided at both longitudinal ends of the horizontal member 212. A second support portion 216 for supporting a side fence (not shown) is pivotally supported on the outer surface of the horizontal member 212 so as to be bent in the horizontal direction.

The vertical frame 209 is provided with a vertical driving mechanism 219 that is divided into both a first frame portion 209A and a second frame portion 209B and drives the vertical frame 209 in the vertical direction. The vertical drive mechanism 219 includes a pair of brackets 218 each having one end (upper end) coupled to each pair of vertical members 211 of the first frame portion 209A and the second frame portion 209B. A shaft member 221 (not shown) is rotatably attached to the lower end of each bracket 218.

Both ends of the arm shaft 220 are connected to each pair of shaft members 221. One end of the vertical arm 222 is fixed to both ends of the arm shaft 220. The other end of each vertical arm 222 is pivotally connected to a connecting portion 205 at the upper end of a mounting member 206 erected on the base frame 201.

In the first frame portion 209A, a vertical drive source 223 is pivotally attached to the middle portion of the transverse member 212. The vertical drive source 223 has a drive shaft (not shown) driven in a linear direction. This drive shaft is connected to a first movable rod 224.

One end of the first movable rod 224 is pivotally attached to an arm (not shown) having one end connected to the middle portion of one arm shaft 220, and one end of the second movable rod 225 can be disassembled to the other end. It is pivotally attached to. The other end of the second movable rod 225 is pivotally attached to a pair of arms 226 provided in the middle of the other arm shaft 220.

Thus, when the vertical drive source 223 is operated and the drive shaft (not shown) is driven in the forward or backward direction, the first and second movable rods 224 and 225 are interlocked with the movement.

When the first and second movable rods 224 and 225 are driven in the linear direction, the pair of arm shafts 220 are rotationally driven, so that the vertical arms 222 provided at both ends of the arm shaft 220 are moved by the movement. Interlocked.

Since the vertical arm 222 is pivotally supported by a connecting portion 205 provided at the upper end of the mounting member 206, the upper and lower arm 222 rotates around the connecting portion 205 as a fulcrum. Accordingly, the upper and lower frames 209 are driven in the ascending direction or the descending direction according to the rotation direction.

As shown in FIG. 1, the pair of vertical members 211 of the second frame portion 209 </ b> B of the upper and lower frames 209 are provided with a pair of receiving members 227 that respectively form receiving portions so as to protrude toward the inner surface side. The receiving member 227 is formed by bending a plate material into a substantially U shape. As will be described later, a swing drive unit 229 is detachably attached to the four receivers 227.

As shown in FIG. 1, a swing frame 231 that is swing-driven in the width direction by a swing drive unit 229 is provided on the upper surface of the upper and lower frames 209. The swing frame 231 has a pair of vertical members 231a arranged in parallel and spaced apart from each other, and a pair of horizontal members 231b each connecting one end and the other end in the longitudinal direction of the vertical members 231a. It is formed in a rectangular frame shape smaller than the frame 209. A floor plate body 232 is provided on the upper surface of the swing frame 231 as shown in FIGS.

In addition, as FIG. 11 shows, one horizontal member 231b is provided in the inner position of the longitudinal direction rather than the terminal of a pair of vertical member 231a.

The floor plate body 232 includes a blow-formed central floor plate 233 and a pair of side floor plates 234 that are connected to both sides in the width direction of the central floor plate 233 so as to be rotatable only upward. Each of the floor plates 233 and 234 is divided into a plurality of floor portions that are rotatably connected to each other, and in the second embodiment, are divided into five floor portions 233a to 233e and 234a to 234e.

The width dimension of the central floor plate 233 is set to be larger than the width dimension of the swing frame 231, and only the floor portion 233 c located at the center in the longitudinal direction of the center floor plate 233 is a pair of plates provided on the swing frame 231. It is fixed to the member 230.

The overall width dimension of the floor plate body 232 is set to be larger than the width dimension of the upper and lower frames 209. When the floor plate body 232 swings together with the swing frame 231 as will be described later, the lower surface of one side floor plate 234 that is lower in the swing direction hits the upper surface of one vertical member 211 of the upper and lower frame 209. Thereby, one vertical member 211 is bent upward.

As shown in FIG. 11, a pair of attachment members 235 are provided on the inner surfaces of both sides of the swing frame 231, and a back-up drive unit 236 is detachably provided on these attachment members 235. The back drive unit 236 includes a housing 236a, and a back drive source 237 is provided on one side of the housing 236a. When the back raising drive source 237 is driven, the first rotating shaft 238 provided on one end side in the longitudinal direction of the housing 236a and the second rotating shaft 239 provided on the other end side simultaneously. Alternatively, only the first rotation shaft 238 can be selected and driven to rotate.

A base end of a back raising arm 242 provided with a back raising roller 241 is rotatably attached to the tip end of the first rotating shaft 238, and a leg raising roller 243 is rotatable at the tip end of the second rotating shaft 239. The base end of the provided leg raising arm 244 is fixed.

The back raising roller 241 is located on the lower surface of the floor portion 233e of the central floor plate 233, and the leg raising roller 243 is located on the lower surface of the floor portion 234b of the central floor plate 233. If the back raising arm 242 is driven in the upward direction, the floor portions 233e and 234d of the central floor plate 233 and the floor portions 234e and 234d of the side floor plate 234 are driven in the upward direction to raise the upper body of the user.

When the leg raising arm 244 is driven in the upward direction, the floor 233b of the central floor 233 and the floors 233b and 234b of the side floor 234 are driven in the upward direction, and the floor 233a and the side floor of the central floor 233 are driven. The floor portion 234a of 234 is interlocked and bent into a mountain shape. Accordingly, the user's leg is held in a state bent upward from the knee.

As shown in FIG. 11, the swing frame 231 swings in the width direction on the upper and lower frames 209 at both ends in the longitudinal direction of the outer surface of one lateral member 231b in the longitudinal direction of the swing frame 231 as will be described later. A pair of second receiving rollers 246 for supporting them is provided so as to be rotatable with the axis line horizontal.

As shown in FIGS. 15 to 17, the swing drive unit 229 forms a rectangular frame shape by a pair of horizontal members 248 spaced in parallel at a predetermined interval, and a pair of vertical members 249 connected to both ends of the horizontal members 248. The frame body 250 is provided. The length dimension of the horizontal member 248 is set slightly shorter than the distance between the inner surfaces of the pair of vertical members 211 of the upper and lower frames 209.

Bearings 252 are provided at the longitudinal center portions of the pair of transverse members 248, and mounting shafts 253 are provided on these bearings 252 so as to rotatably support both end portions in the longitudinal direction. One end of an L-shaped arm 254 and a straight straight arm 255 is attached to the middle portion of the attachment shaft 253.

The swing drive unit 229 is provided with a swing drive mechanism 257. The swing drive mechanism 257 has a screw shaft 258. The screw shaft 258 is covered with a bellows member 259 that is formed to be extendable and contractible with resin. As shown in FIG. 17, one end of the screw shaft 258 exposed from the bellows member 259 is pivotally attached to a bracket 261 provided on one vertical member 249 of the frame body 250.

In the middle of the screw shaft 258, a drive unit 263 having an oscillation drive source 262 is provided so as to protrude in one side direction intersecting the axial direction of the screw shaft 258. The drive unit 263 is connected to the other ends of the L-shaped arm 254 and the straight arm 255.

The L-shaped arm 254 is provided in one side direction in which the drive unit 263 protrudes from the direction intersecting the axial direction of the screw shaft 258, and the straight arm 255 is provided on the other side. As a result, when the L-shaped arm 254 and the straight arm 255 together with the mounting shaft 253 are rotated with one end as a fulcrum as will be described later, the drive unit 263 side is the L-shaped arm 254, so that it interferes with the drive unit 263. It is to be prevented.

A female screw body (not shown) is screwed onto the screw shaft 258. The female screw body is rotationally driven by a swing drive source 262. When the female screw body is driven to rotate, the screw shaft 258 is driven in the axial direction with respect to the female screw body.

When the screw shaft 258 is driven, the screw shaft 258, that is, the swing drive mechanism 257 swings together with the screw shaft 258 according to the rotational drive direction of the screw shaft 258 with one end pivotally attached to the bracket 261 as a fulcrum. . As a result, the mounting shaft 253 connected to the L-shaped arm 254 and the straight arm 255 is rotated in accordance with the swinging direction.

19, the upper end of a belt-like drive link 266 having a guide shaft 265 projecting from the lower end is attached to the attachment shaft 253 along with a pair of arms 254 and 255. The guide shaft 265 is slidably inserted into long holes 267a and 268a formed along one end side of the first swing link 267 and the second swing link 268.

The other ends of the first swing link 267 and the second swing link 268 are pivotally connected to one end of the connection link 269 by a connection shaft 271. Further, one end and the other end of a restriction link 272 (shown in FIGS. 15 and 17) are pivotally attached to the pair of connecting shafts 271 together with the other ends of the first swing link 267 and the second swing link 268. Yes. As shown in FIG. 24, the restriction link 272 is curved in an arc shape.

The other end of the pair of connecting links 269 is connected to one end of the mounting shaft 273, respectively. A first receiving roller 274 is rotatably attached to the other end of the pair of attachment shafts 273. Further, the middle part of the pair of attachment shafts 273 penetrates one end and the other end of the prismatic attachment member 275. Thereby, the mounting member 275 is integrally provided on the mounting shaft 273.

In the second embodiment, the link mechanism 270 is configured by the drive link 266, the first swing link 267, the second swing link 268, the pair of connection links 269, and the restriction link 272. As shown in FIG. 15, one bearing 252 that supports the mounting shaft 253 located on the mounting member 275 side has a pair of positions facing and spaced apart from one side surface of the central portion of the mounting member 275 at a slight interval. A determination unit 252a is provided. This restricts the attachment member 275 from swinging in the longitudinal direction.

As shown in FIG. 24 to FIG. 26 or FIG. 19, inverted L-shaped attachments 276 a are provided at both ends of one lateral member 248 of the frame body 250. Similarly, an inverted L-shaped engagement member 276 is provided on the fixture 276a so that the vertical attachment position can be adjusted.

When the swing frame 231 is in the horizontal state shown in FIG. 24, one connecting shaft 271 is engaged with one engaging member 276, and the other connecting shaft 271 is engaged with the other engaging member 276. There is no state.

As shown in FIGS. 20 to 22, the first receiving member 277 has a hollow shape, and the first receiving member 277 is formed with a concave portion 278 having a U-shaped curved surface opened on the upper surface. . The curved surface of the recess 278 is set to a curved surface having the same curvature as the curved surface of the first receiving roller 274.

A limit switch 279 as a detector is provided in the space 278b (shown in FIG. 22) formed below the recess 278 so that the positioning can be adjusted in the vertical direction. This limit switch 279 has a detection lever 281. The tip of the detection lever 281 protrudes from an opening 278a formed at the inner bottom of the recess 278 of the first receiving member 277 shown in FIGS. And the front-end | tip part of the detection lever 281 is set so that it may become a position slightly higher than the inner bottom face of the recessed part 278. FIG.

Accordingly, whether or not the first receiving roller 274 is pressing the detection lever 281 of the limit switch 279 exposed on the bottom surface of the recess 278, that is, the first receiving roller 274 is the recess 278 of the first receiving member 277. It is possible to detect whether or not it is supported reliably without lifting up.

As shown in FIG. 17, on one side surface of both end portions of the mounting member 275, a connecting member 282 formed by bending a plate material into an inverted U shape is provided. One end of the swing frame 231c, that is, the end opposite to the end of the swing frame 231 where the second receiving roller 246 is provided is connected to the pair of connecting tools 282.

Before the swing frame 231 is connected to the mounting member 275 of the swing drive unit 229 by the connector 282, the swing drive unit 229 is detachably attached to the second frame portion 209B of the upper and lower frames 209.

That is, the swing drive unit 229 is attached to and detached from each pair of receivers 227 provided on the inner surfaces of the pair of vertical members 211 of the second frame portion 209B at both ends of the pair of horizontal members 248 of the frame body 250. Engagement hold is possible.

As shown in FIG. 18, a first through hole 227 a is formed in a pair of sides of the receiver 227, and a second through hole corresponding to the first through hole 227 a is formed at both ends of the lateral member 248. A hole 248a is formed.

When the horizontal member 248 is engaged with the receiving tool 227, it is positioned corresponding to the first through hole 227a and the second through hole 248a. A connecting shaft 287 is inserted through the corresponding first through hole 227a and second through hole 248a. Thereby, the swing drive unit 229 is detachably attached to the second frame portion 209B of the upper and lower frames 209.

One end of a flexible band member 288 made of a resin is integrally connected to the connecting shaft 287, and a middle part of the band member 288 is fixed to the lower surface of the receiving member 227, and a stopper hole 289 is formed at the other end portion. Is drilled.

Then, after bending one end portion of the band member 288 and inserting the connecting shaft 287 through the first through hole 227a and the second through hole 248a, the other end portion is bent and the first through hole 227a is bent. A stop hole 289 is elastically engaged with the tip of the connecting shaft 287 protruding from the end. Thereby, the connecting shaft 287 is held so as not to come out.

That is, the swing drive unit 229 can be detachably attached to the second frame portion 209B of the upper and lower frames 209 by the connecting shaft 287.
The mounting structure using the connecting shaft 287 provided with the band member 288 described above is also applied to other connecting portions of the second embodiment.

A pair of second receiving rollers 246 provided on one end surface of the swing frame 231 is a pair of second receiving rollers provided at both ends on the inner surface side of the lateral member 212 of the first frame portion 209A of the upper and lower frames 209. It is supported by a recess 284 formed in the receiving member 283 (shown in FIG. 11). The concave portion 284 of the second receiving member 283 is formed in a concave curved surface having a curved surface having the same curvature as the outer peripheral surface of the second receiving roller 246, as with the first receiving member 277.

That is, when the swing frame 231 is in a horizontal state as described above, the pair of first and second receiving rollers 274 and 246 are supported by the concave portions 278 and 284 of the first and second receiving members 277 and 283, respectively. It is in the state that was done.

When the swing frame 231 is driven to swing in the width direction by the swing drive mechanism 257 as will be described later, only one of the receiving rollers 274 and 246 in the width direction is positioned in that direction. It is supported by either one of the members 277 and 283.

23, the driving of the vertical drive source 223, the back raising drive source 237, and the swinging drive source 262 is controlled by the control device 285. This control device 285 receives detection signals from a pair of limit switches 279. Further, a remote controller 286 is connected to the control device 285, and the drive of the vertical drive source 223, the back drive source 237 and the swing drive source 262 can be operated by this remote controller 286.

When the swing frame 231 is in the horizontal state and the pair of limit switches 279 are in the on state, the back raising drive source 237 can be operated to drive the back raising floor plate body 232 back up. When the swing frame 231 is swung, only one of the pair of left and right limit switches 279 is turned on and the other is turned off. In that case, the controller 285 controls the drive of the swing drive source 262 so that the swing drive source 262 can be driven to swing the swing frame 231.

If the swing frame 231 is swung, an unnecessary external force is applied to the swing frame 231 and one limit switch 279 located on the lower end side in the swing direction is turned off, so that the pair of limit switches 279 is turned off. When is turned off, the swing drive source 262 cannot be operated.

That is, in a state where the swing frame 231 is swung by the swing drive source 262, the swing frame 231 bends due to an external force or the like, and one limit switch 279 positioned on the lower end side in the swing direction is the other limit switch. Similarly to 279, when it is turned off, the drive of the swing frame 231 is stopped because it is in an abnormal state.

The limit switch 279 is provided with the detection lever 281 facing the inner bottom of the recess 278 of the first receiving member 277. Since the concave portion 278 has a concave curved surface shape, the first receiving roller 274 is reliably supported. Therefore, when the first receiving roller 274 is slightly lifted by the concave portion 278 due to the swinging frame 231 being bent by an external force, the limit switch 279 can reliably detect this.

In such a configuration, when the rocking drive source 262 operates, the rocking drive source 262 and the drive unit 263 move from the state shown in FIG. 24 along the screw shaft 258 to the left as shown in FIG. Move in the direction. As a result, the guide shaft 265 moves through the long hole 267a of the first swing link 267 in the direction indicated by the arrow a in FIG. 25, so that the drive link 266 moves in the clockwise direction indicated by the arrow X in FIG. Rotate.

When the drive link 266 rotates in the X direction, the second swing link 268 is rotated in the direction indicated by the arrow Y by the guide shaft 265 and displaced upward by this rotation. One connected link 269 is driven from the lowered position shown in FIG. 24 to the raised position shown in FIG.

When one connecting link 269 rises, one end side in the width direction of the swing frame 231 connected to the connecting link 269 via the attaching shaft 273 and the attaching member 275 rises together with the first receiving roller 274.

At this time, the other end side in the width direction of the swing frame 231 is provided with the other first receiving roller 274 provided at the other end in the longitudinal direction of the mounting member 275 and supported by the first receiving member 277, and in the longitudinal direction. The second receiving roller 246 provided on the other end in the width direction of the other end surface and supported by the second receiving member 283 is rotated as a fulcrum. As a result, the swing frame 231 rises at one end in the width direction and tilts.

When the swing frame 231 is tilted, one side floor plate 234 that is rotatably connected to one side of the central floor plate 233 that is the lower end in the tilt direction of the floor plate body 232 has a lower surface on the free end side of the upper and lower frames 209. It contacts the upper surface of the vertical member 211. Accordingly, the side floor plate 234 rotates upward with respect to the central floor plate 233, so that the user is prevented from slipping off from the lower end side of the inclined swing frame 231.

Note that the pair of first receiving members 277 are disposed close to the other side surface of the attachment member 275. Accordingly, when the mounting member 275 is in a horizontal state as shown in FIGS. 24 and 15, the first receiving member 277 and the positioning portion 252 a provided on one of the bearings 252 intersect with the longitudinal direction. It is prevented from swinging in the direction.

As shown in FIG. 25, when the swing frame 231 is swung, one connecting shaft 271 provided at one end of the swing link 267 located on the other end in the width direction of the swing frame 231, that is, on the descending side. Is engaged with the engaging member 276. As a result, the swing frame 231 is tilted in a state where the lower end of the other connection link 269 at the lowering position of one end of the restriction link 272 is prevented from moving in the lateral direction (left direction in FIG. 25) or the upward direction. To do.

Since the lower ends of the pair of connection links 269 are connected by the restriction link 272, the distance between the lower ends of the pair of connection links 269 does not change. In addition, since the one connecting shaft 271 engages with the one engaging member 276, the position of the lower end of the connecting link 269 in the lowered position does not shift in the left direction or the ascending direction in FIG.

As a result, when the one end side of the swing frame 231 is driven to swing in the ascending direction, the connecting link 269 whose upper end is connected to one end portion in the rising direction moves downward together with the mounting member 275 without shifting. Since the position is surely displaced from the position to the raised position, one end in the width direction of the swing frame 231 is reliably raised.

When swinging the swing frame 231 in the reverse direction, the guide shaft 265 is moved from the state shown in FIG. 24 in the direction opposite to that in FIG. 25, that is, in the direction indicated by the arrow b in FIG. Thereby, the swing frame 231 can be swung in the reverse direction, that is, the direction in which the other end in the width direction rises.

At this time, the connecting shaft 271 at the lower end of the connecting link 269 provided at the other end in the width direction at the lowered position of the swing frame 231 is engaged with the engaging member 276, and the mounting member 275 is moved to the right in FIG. Stop moving in the direction.

As described above, when the swing frame 231 is swung, the one connecting shaft 271 is engaged with the L-shaped engagement member 276. Therefore, since the connecting shaft 271 is securely held by the engaging member 276, the swinging frame 231 may be difficult to rattle even if an unintentional external force is applied to the swinging swinging frame 231.

The engaging member 276 is attached to the fixture 276a so that the positioning can be adjusted. Therefore, the engagement member 276 can be positioned so that the connecting shaft 271 engages with the engagement member 276 without rattling.

According to the bed apparatus having the above-described configuration, the swing drive unit 229 is provided with the mounting member 275 to which the swing frame 231 is coupled so as to be swingable on the frame body 250, and the frame body 250 further includes the mounting member 275. The link mechanism 270 for swinging and the swing drive mechanism 257 for driving the link mechanism 270 are integrally provided.

Thereby, the swing drive unit 229 in which the mounting member 275 for swinging the swing frame 231, the link mechanism 270, and the swing drive mechanism 257 were integrated could be configured.

Then, according to the swing drive unit 229 configured as described above, the end of the horizontal member 248 of the frame body 250 is engaged with the support 227 provided on the upper and lower frames 209, and these are shown in FIG. By detachably connecting to the upper and lower frames 209 by the connecting shaft 287, it can be detachably assembled.

Then, after the swing drive unit 229 is assembled to the upper and lower frames 209, one end of the vertical member 231a of the swing frame 231 is detachably connected to a pair of second receiving members 283 provided on the mounting member 275. So it can be assembled.

That is, the above-described main parts for driving the swing frame 231 to be rocked are integrated by the rocking drive unit 229. Therefore, when assembling the bed apparatus at a delivery destination, for example, the work of assembling the swing drive mechanism 257 to the upper and lower frames 209 or the link mechanism 270 to the swing drive mechanism 257 and the upper and lower frames 209 becomes unnecessary. The swing drive unit 229 can be quickly and easily assembled to and detached from the first frame portion 209A of the upper and lower frames 209 without requiring skill.

Furthermore, when the bed apparatus is delivered, the upper and lower frames 209 are disassembled into first and second frame portions 209A and 209B, and the swing drive unit 229 is disassembled with respect to the upper and lower frames 209. Therefore, the upper and lower frames 209 divided into the first and second frame portions 209A and 209B are lighter than the assembled state, and moreover than the case where the swing drive unit 229 is incorporated in the upper and lower frames 209. Since the upper and lower frames 209 are lighter, it is possible to quickly and easily perform these loading and assembling operations.

A pair of first receiving members 277 for supporting the pair of first receiving rollers 274 are provided on the mounting member 275 to which the swing frame 231 is connected, and limit switches 279 are provided on the first receiving members 277, respectively. I made it.

When the swing frame 231 connected to the mounting member 275 is in a horizontal state or in a tilted state by swinging, the support state of the first receiving roller 274 on the pair of first receiving members 277 is determined. The limit switch 279 can detect whether it is in the position. Detection signals from the pair of limit switches 279 are output to the control device 285. Therefore, the control device 285 can safely perform the drive control of the bed device as follows.

For example, an unnecessary external force is applied to the swinging frame 231 in the swinging state, and one first receiving roller 274 located on the lower side in the swinging direction of the swinging frame 231 is lifted from the first receiving member 277. When one limit switch 279 provided on the first receiving member 277 is turned off together with the other limit switch 279, the control device 285 stops driving the swing frame 231 in the swing direction. At the same time, the abnormal state is notified by alarm means such as lighting of a lamp or sounding a buzzer. As a result, it is possible to check what kind of abnormal state has occurred in the swing frame 231, so that safety can be improved.

Further, when one of the pair of limit switches 279 is in an OFF state, that is, when the swing frame 231 is swung, the control device 285 drives the floor plate body 232 by the back raising drive source 237. To prevent. Similarly, when the floor plate body 232 is driven in the back-up state, the control device 285 prevents the floor plate body 232 from being swung by driving the swing drive source 262. Thus, it is possible to prevent the floor plate body 232 and the swing frame 231 from being carelessly driven and damaged, or an excessive force applied to the user.

The limit switch 279 is provided with its detection lever 281 positioned at the inner bottom of an arcuate recess 278 where the first receiving roller 274 of the first receiving member 277 is supported. Since the concave portion 278 is formed in an arc shape corresponding to the first receiving roller 274, the first receiving roller 274 is reliably and stably supported by the concave portion 278. In addition, since the detection lever 281 of the limit switch 279 is positioned at the inner bottom of the recess 278, if the first receiving roller 274 is slightly lifted from the recess 278, this is reliably detected.

That is, the support state of the first receiving roller 274 in the recess 278 is accurately detected by the limit switch 279. Therefore, if an inadvertent external force is applied to the tilted swing frame 231 and the first receiving roller 274 on the lower end side in the swing direction of the swing frame 231 is slightly lifted from the recess 278, the recess 278 Therefore, the limit switch 279 having the detection lever 281 positioned at the same time can accurately and accurately detect this. Accordingly, the control device 285 can drive the bed device safely and reliably based on the detection signal from the limit switch 279.

As shown in FIG. 18, the swing drive unit 229 engages both ends of the horizontal member 248 of the frame body 250 with the receiver 227 provided on the second frame portion 209 </ b> B of the upper and lower frames 209, thereby The connecting shaft 287 is inserted through the end portions of the H.248 and the through holes 248a and 227a provided in the receiver 227, and is attached to the upper and lower frames 209.

The connecting shaft 287 is attached to one end of a belt member 288 made of resin having flexibility and fixed to the receiving tool 227. For this reason, since the connecting shaft 287 is prepared in advance at the connecting portion between the transverse member 248 and the receiving member 227, the attaching operation of the swing drive unit 229 can be performed quickly.

Moreover, since the connecting shaft 287 removed from the connecting portion between the receiving member 227 and the frame body 250 is integrally held by the receiving member 227 by the band member 288, there is no possibility that it will be lost even if it is removed from the connecting portion.

In the above-described embodiment, the bed apparatus having the upper and lower frames is described as an example. However, the bed apparatus without the upper and lower frames may be used. That is, in the above-described embodiment, the swing drive unit is provided on the upper and lower frames as the bed frame. However, in the case of a bed apparatus that does not include the upper and lower frames, the base frame is attached to the swing drive unit. It can be used as a bed frame.

In the second embodiment, the limit switch as a detector is provided on the first receiving member that receives the first receiving roller. However, both the first and second receiving members or only the second receiving member are provided. You may make it provide in.

[Third Embodiment]
Hereinafter, a third embodiment of the present invention will be described with reference to FIGS. The third embodiment differs from the first embodiment in that it further includes a first receiving member provided integrally with the hinge. The first receiving member allows the side floor plate to rotate upward from the horizontal state with respect to the central floor plate and prevents the side floor plate from rotating downward from the horizontal state.

27 to 29 includes a base frame 301 having four corners supported by legs 302. The bed apparatus B shown in FIGS. As shown in FIG. 28, the base frame 301 is provided with an upper and lower frame 303 as a bed frame that can be driven in the vertical direction by a vertical drive mechanism 305 having a pair of left and right links 304.

As shown in FIGS. 28 and 30, the upper and lower frames 303 are a pair of vertical rods 306 that are spaced apart and parallel to each other at a predetermined interval, and a pair of boards that are attached to one end and the other end of the vertical rods 306 in a standing state The body 307 is formed so that the planar shape is a rectangular frame shape. Bendable support members 308 for detachably attaching side rails (not shown) are provided on the outer surfaces of the pair of vertical rods 306 of the upper and lower frames 303 at predetermined intervals in the longitudinal direction.

A rectangular frame-shaped swing frame 311 (shown in FIG. 27) is disposed within the upper and lower frames 303. That is, the swing frame 311 is set to have a width dimension that goes into the upper and lower frames 303. The swing frame 311 is driven to swing in the width direction by a swing drive mechanism 312 (shown in FIG. 28) provided at one end of the upper and lower frames 303 in the longitudinal direction.

A floor plate body 315 is provided on the upper surface of the swing frame 311. As shown in FIG. 27 or FIG. 30, the floor plate body 315 is connected to a central floor plate 317 that is blow-molded, and the upper end in the thickness direction is pivotally connected to both sides in the width direction of the central floor plate 317 by a flexible thin portion 316. It is comprised by a pair of side part floor board 318 made. The thin portion 316 is formed at the same time as the floor plate body 315 is formed.

In other words, the pair of side floor plates 318 are held in a horizontal state with respect to the central floor plate 317 by the thin wall portion 316 and can be rotated only upward from the horizontal portion with the connection portion with the thin wall portion 316 as a fulcrum. Therefore, it is connected in a downward direction so as not to rotate.

The central floor plate 317 and the pair of side floor plates 318 are each divided into a plurality of floor portions 317a to 317d and 318a to 318d having a predetermined length. In the third embodiment, the back floor portions 317a and 318a, two fixed floor portions 317b and 318b that are paired (divided in two), the first leg floor portions 317c and 318c, and the second leg floor portion 317d, It is divided into four parts 318d.

The two fixed floor portions 317 b of the center floor plate 317 are fixed to the swing frame 311. A back floor 317a is rotatably connected to one end in the longitudinal direction intersecting the width direction, and the first leg floor 317c and the second leg floor are connected to the other end of the fixed floor 317b of the center floor plate 317. The part 317d is connected so that rotation is possible sequentially.

Note that the width dimension of the center floor plate 317 is set to be substantially the same as the width dimension of the swing frame 311. Accordingly, the floor plate body 315 attached to the swing frame 311 has a pair of side floor plates 318 protruding outward in the width direction of the swing frame 311.

A back-up drive unit 321 shown in FIG. 28 is provided on the lower surface side of the swing frame 311. When the back raising drive source provided in the back raising drive unit 321 is actuated, the back floor portions 317a and 318a of the central floor plate 317 and the side floor plate 318 are integrally raised as shown by a chain line in FIG. Can be rotated.

Further, the first leg floor portions 317c and 318c are driven to rotate in the raising direction independently or interlocked with the back floor portions 317a and 318c, and the second leg floor portions 317d and 318d are interlocked with the first floor portions 317c and 318c. It can be raised so as to have an inverted V shape.

When the swing drive mechanism 312 provided on the upper and lower frames 303 is operated, the floor plate body 315 can be swung in the width direction together with the swing frame 311 as shown by a chain line in FIG. The pair of side floor plates 318 provided on both sides of the central floor plate 317 can be rotated only upward from the state in which the thin portion 316 is held horizontally with respect to the central floor plate 317 as described above. .

Therefore, the side floor plate 318 positioned on the upper side in the rotational direction of the floor plate body 315 is maintained in a horizontal state, and the side floor plate 318 positioned on the lower side is in contact with the upper surface of the vertical rod 306 of the upper and lower frames 303 with respect to the central floor plate 317. Thus, it turns and bends upward from a relatively horizontal state.

When the floor plate body 315 is in a horizontal state, that is, when the swing frame 311 is not driven to rotate in the width direction, the pair of left and right side floor plates 318 protrude outward from both ends of the swing frame 311 in the width direction. These parts are not supported by the upper and lower frames 303. Therefore, if a load greater than a predetermined value is applied to the upper surface of the side floor plate 318, the thin wall portion 316 connecting the side floor plate 318 to the central floor plate 317 may be damaged.

In order to prevent the thin portion 316 from being damaged, as shown in FIG. 30, the central floor plate 317 and the side floor plate 318 are connected by a hinge 322 made of synthetic resin. In the third embodiment, the width direction both ends of the back floor portion 317a, the first leg floor portion 317c, and the second leg floor portion 317d of the central floor plate 317, the back floor portion 318a of the pair of side floor plates 318, Both end portions in the longitudinal direction of one leg floor portion 318c and one end in the width direction of the second leg floor portion 318d are connected by a pair of hinges 322 so as to be rotatable as described later.

In the third embodiment shown in FIG. 30, the fixed floor portion 317 b of the central floor plate 317 and the fixed floor portion 318 b of the side floor plate 318 that are divided into two are not connected by the hinge 322. You may make it connect.

The hinge 322 has a first connecting piece 323 as shown in FIGS. The first connecting piece 323 has a rectangular plate shape in plan view, and concave portions 324a are formed on the upper surface and the side surfaces at both ends in the width direction. Accordingly, a pair of support portions 324 is formed at one end portion of the first connecting piece 323.

A first support hole 324b (shown in FIG. 33) is formed in the pair of support portions 324 in the thickness direction, and a connecting shaft 325 is inserted and supported in these support holes 324b so as not to be extracted. One end of a second connecting piece 326 having a rectangular plate shape is connected to the first connecting piece 323 by a connecting shaft 325 so as to be rotatable. That is, as shown in FIG. 33, a convex portion 327 is projected from one end portion of the second connecting piece 326, and a support hole 328 penetrating in the thickness direction is formed in the convex portion 327.

The second connecting piece 326 is pivotally connected by inserting the connecting shaft 325 across the first support hole 324b and the second support hole 328 by positioning the convex portion 327 in the concave portion 324a. Yes. Since the convex portion 327 is positioned in the concave portion 324a, the second connecting piece 326 is rotated only upward with respect to the first connecting piece 323. In other words, like the side floor plate 318 of the floor plate body 315, it rotates only upward.

A first receiving member 329 is integrally formed with the first connecting piece 323. That is, the first receiving member 329 has a substantially L-shaped side surface, and one end thereof is integrated with the lower surface side portion of the recess 324a in which the pair of support portions 324 of the first connecting piece 323 is formed. It has become. The other end of the first receiving member 329 extends downward and is bent toward the second connecting piece 323 to be formed in the first engaging portion 331.

As shown in FIGS. 30 and 31, the hinge 322 has the first connecting piece 323 at both longitudinal ends of the upper surface of the back floor portion 317a, the first leg floor portion 317c, and the second leg floor portion 317d of the center floor plate 317. The second connecting piece 326 is fixedly attached to the concave first mounting portion 332 formed in the portion, and the back floor portion 318a, the first leg floor portion 318c, and the second leg floor portion 318d of the side floor plate 318 are attached. Are fixed to the concave second mounting portions 333 formed at both ends in the longitudinal direction of the upper surface. FIGS. 31 and 32 show a connection state of the back floor portion 317a of the central floor plate 317 and the back floor portion 318a of the side floor plate 318. FIG.

As shown in FIG. 36, when the central floor plate 317 and the side floor plate 318 are in a horizontal state, the first engaging portion of the first receiving member 329 provided in the first connecting piece 323 of the hinge 322. 331 engages with the lower surface of the end in the width direction of the side floor plate 318. Accordingly, the first engaging portion 331 of the first receiving member 329 prevents the side floor plate 318 in the horizontal state from rotating downward.

FIG. 37 shows a state in which the side floor plate 318 is rotated upward from the horizontal state. In this case, the first engaging portion 331 of the first receiving member 329 rotates the side floor plate 318 upward. Don't disturb. The central floor plate 317 and the side floor plate 318 of the floor plate body 315 are connected to each other so as to be rotatable by forming the thin portion 316 at the time of molding. However, the thin portion 316 can be rotated only by the hinge 322 without forming the thin portion 316. You may make it connect.

32, a first recess 335 is formed on the lower surface of the back floor portion 317a of the center floor plate 317 over the entire length in the width direction. A second recess 336 is formed at one end in the width direction at a position corresponding to both ends of the first recess 335 in the back floor 318 a of the side floor plate 318. 32 shows the back floor portions 317a and 318a of the floor plate body 315, the first and second recesses 335 and 318d are similarly applied to the first and second leg floor portions 317c, 318c, 317d and 318d. 336 is formed.

As shown in FIG. 38, a second receiving member 337 such as a pipe member is detachably attached to the first floor 317 in the first recess 335. The second receiving member 337 is set to a length in which both end portions in the longitudinal direction protrude laterally from the first concave portion 335, and the both end portions are when the side floor plate 318 is in a horizontal state. Engage with the second recess 336.

Thereby, the second receiving member 337 is prevented from rotating together with the first receiving member 329 by the both ends of the side receiving side plate 318 in a horizontal state. That is, both end portions of the second receiving member 337 serve as second engaging portions 338 that engage with and support the lower surface of the side floor plate 318 when the side floor plate 318 is horizontal.

According to the floor plate body 315 of the bed apparatus B configured as described above, the side floor plate 318 is connected to the central floor plate 317 by the hinge 322 and the thin portion 316 so as to be rotatable only upward from a horizontal state. When the side floor plate 318 is in a horizontal state with respect to the central floor plate 317, the first engagement of the first receiving member 329 provided integrally with the hinge 322 on the lower surface of the end portion in the width direction of the side floor plate 318. The joint portion 331 is engaged.

As a result, the side floor 318 is in a state of being prevented from rotating downward by the first engaging portion 331, and therefore a load W (shown in FIG. 37) is inadvertently applied to the upper surface of the side floor 318. Even if it is added, the side floor plate 318 is prevented from rotating downward by the load W.

If the downward rotation of the side floor plate 318 is prevented, the connection state of the side floor plate 318 by the hinge 322 is impaired, or the thin-walled portion 316 connecting the central floor plate 317 and the side floor plate 318 is broken. Can be prevented.

Further, a second receiving member 337 is fixed to the central floor plate 317 and provided in the first concave portion 335 and the second concave portion 336 formed on the lower surfaces of the central floor plate 317 and the side floor plate 318. The lower surfaces of the pair of side floor plates 318 are supported by both end portions of the receiving member 337.

Therefore, the second receiving member 337 also prevents the side floor plate 318 from rotating downward, so that even if an inadvertent load W is applied to the upper surface of the side floor plate 318, the connected state by the hinge 322 Can be prevented together with the first receiving member 329 from being damaged or the thin-walled portion 316 being broken.

[Fourth Embodiment]
FIG. 39 shows a fourth embodiment of the present invention. In the fourth embodiment, the first receiving member 329 shown in the first embodiment is not provided on the hinge 322 that rotatably connects the central floor plate 317 and the side floor plate 318. Different from the third embodiment.

Instead, third receiving members 341 having a substantially L-shaped side surface are provided on both side surfaces of the center floor plate 317 in the width direction. The third receiving member 341 has one end portion integrally provided on the side surface of the central floor plate 317 and the other end portion extending downward and bent to the lower surface side of the side floor plate 318. It is formed in the joint part 342.

The third receiving member 341 may be integrally formed with the central floor plate 317 when the central floor plate 317 is formed. The third receiving member 341 is formed separately from the central floor plate 317, and is integrated with the central floor plate 317 by screws, an adhesive, or the like. You may make it provide.

[Fifth Embodiment]
FIG. 40 shows a fifth embodiment of the present invention. The fifth embodiment is a modification of the fourth embodiment, and differs from the fourth embodiment in that a third receiving member 341 is provided on a side surface of the side floor plate 318 facing the side surface of the central floor plate 317. .

That is, the third receiving member 341 has one end integrally provided on the side surface of the side floor 318, and the third engagement formed on the other end when the side floor 318 is in a horizontal state. The portion 342 is engaged with the lower surface of the end portion in the width direction of the central floor plate 317. Similar to the fourth embodiment, the third receiving member 341 may be integrally formed with the side floor plate 318, or may be integrally attached to the side surface of the side floor plate 318 as a separate body.

Even in the fourth and fifth embodiments, even if an inadvertent load is applied to the upper surface of the side floor plate 318 in a horizontal state, the center floor plate 317 and the side floor plate 318 are caused by the load. It is possible to prevent the connecting portion from being damaged.

In the above-described embodiment, the bed apparatus having the upper and lower frames is described as an example. However, the bed apparatus without the upper and lower frames may be used. That is, in the above-described embodiment, the upper and lower frames are exemplified as the bed frame provided with the swing frame. However, in the case of a bed apparatus that does not include the upper and lower frames, the base frame is used as the bed frame. The swing frame may be supported so as to be swingable.

In addition, as a floor board body, the center floor board and a pair of side floor boards are divided into a plurality of parts such as a back floor part and a leg floor part, and the example of a structure that can be raised back and raised is described as an example, The central floorboard and the side floorboard may be a floorboard body that is not divided into a plurality of portions. The configurations disclosed in the first to fifth embodiments described so far can be appropriately combined.

101, 201, 301 ... base frame, 105, 209, 303 ... vertical frame (an example of a bed frame), 106, 219, 305 ... vertical drive mechanism, 108, 223 ... vertical drive source, 115, 231, 311 ... rocking Moving frame, 116, 262 ... Oscillating drive source, 118, 232, 315 ... floor plate body, 119, 233, 317 ... center floor plate, 121, 234, 318 ... side floor plate, 119a, 121a, 233e, 234e, 317a, 318a ... back floor, 119c, 121c, 233b, 234b, 317c, 318c ... first leg floor, 119d, 121d, 233a, 234a, 317d, 318d ... second leg floor, 125, 237 ... back up Drive source, 127,285 ... control device, 128 ... switching control unit, 129, 286 ... remote control Roller (an example of a manual operation module), 130 ... setting controller (an example of a setting operation module), 151 ... an input unit, 152 ... a processing unit, 153 ... a drive output unit, 1102 ... a side fence, 229 ... a swing drive unit, 246 ... second receiving roller, 250 ... frame body, 257,312 ... oscillation drive mechanism, 263 ... driving unit, 266 ... drive link, 267 ... first oscillation link, 268 ... second oscillation link, 270 ... Link mechanism, 274 ... first receiving roller, 277 ... first receiving member, 279 ... limit switch, 281 ... detecting lever, 283 ... second receiving member, 316 ... thin wall portion, 322 ... hinge, 323 ... first 1 connecting piece, 325... Connecting shaft, 329... First receiving member, 331... First engaging portion, 337... Second receiving member, 338... Second engaging portion, 341. Part , 342 ... third engagement portion.

Claims (15)

A bed apparatus provided with a tilting function for inclining the floor board body in the width direction and a back raising function for raising and lowering the floor board body with respect to the longitudinal direction intersecting the width direction,
A bed frame,
The bed frame is supported so as to be tiltable in the width direction, and the swing frame provided with the floor plate on the upper surface;
A swing drive source for driving the swing frame to tilt in the width direction;
A drive source for raising the back, which is provided on the rocking frame and drives up and down one end in the longitudinal direction of the floor plate body;
A controller for controlling the tilt drive of the swing frame and the undulation drive of the floor plate body,
The controller includes a manual mode in which either the swing frame or the floor plate body can be driven when either the swing frame or the floor plate body is in a horizontal state, and one of the swing frame and the floor plate body is A bed apparatus, wherein the swing drive source and the back-up drive source are controlled in a manual restriction mode in which the other is driven in a restricted range while being driven in a restricted range. In the manual restriction mode, when the floor plate body is inclined in the width direction by the swing frame with the back floor portion of the floor plate body raised, the floor frame body is provided at an end portion in the width direction of the bed frame. The bed apparatus according to claim 1, wherein a rising angle of the back floor portion and an inclination angle of the floor plate body are set so that the back floor portion does not hit the side fence to be formed. The bed apparatus according to claim 1 or 2, wherein the bed apparatus has an automatic mode in which the floor plate body is driven to swing in the width direction based on a preset condition by the swing drive source. The controller is
A control device;
A drive condition is set for driving the tilting drive of the swing frame and the raising / lowering drive of the floor plate body in the manual mode, the manual restriction mode, or the automatic mode connected to the control device. A setting operation module to set whether to drive with,
And a manual operation module configured to drive the swing frame and the floor plate body when the manual operation mode or the manual restriction mode is selected by the setting operation module connected to the control device. Item 4. The bed apparatus according to item 3. The driving conditions of the manual mode, the manual restriction mode, or the automatic mode set by the setting operation module are stored in the switching control unit, and the driving conditions are attached to and detached from the setting operation module via the switching control unit. The bed apparatus according to claim 4, wherein the bed apparatus can be copied onto a possible storage medium. A swing drive unit provided detachably on the bed frame and having the swing drive source;
The swing drive unit has a rectangular frame, and both ends of the pair of transverse members facing each other in the longitudinal direction of the frame body are received by receiving portions provided on the pair of longitudinal members facing each other of the bed frame. The bed apparatus according to claim 1, wherein the bed apparatus is detachably engaged and held. The swing drive unit is
A swing drive mechanism provided on the frame;
A pair of connecting links provided on the frame body and driven by the swing drive mechanism, and when driven, one moves from the lowered position to the raised position according to the driving direction and the other is held at the lowered position. A link mechanism having
A pair of attachment shafts each having one end pivotally attached to the ends of the pair of connecting links;
A pair of first receiving rollers rotatably provided at the other ends of the mounting shafts;
An attachment member in which both ends in the longitudinal direction are supported in the middle of the attachment shaft and the other end in the longitudinal direction of the swing frame is detachably connected;
A first recess provided on the upper surface of the frame for supporting the pair of first receiving rollers when the pair of connecting links are in a lowered position; A pair of first receiving members that swing the mounting member about one of the pair of first receiving rollers as a fulcrum when driven;
The bed apparatus according to claim 6, comprising: On the other end surface in the longitudinal direction of the swing frame, a pair of second receiving rollers are provided at both ends in the width direction so as to be rotatable with the axis line horizontal,
A pair of second receiving members having second recesses for receiving the pair of second receiving rollers when the swing frame is in a horizontal state are provided on the upper surface of one end in the longitudinal direction of the bed frame. The bed apparatus according to claim 7, wherein the bed apparatus is provided. It is detected whether the first receiving roller or the second receiving roller is supported by the concave portion in at least one of the pair of the first receiving member or the second receiving member. A detector is provided,
The bed apparatus according to claim 8, wherein a detection signal of the detector is output to the controller. The floorboard body is
A central floor plate provided on the upper surface of the swing frame;
Side floor boards arranged on both sides in the width direction of the center floor board, and one end in the width direction are rotatably connected to the center floor board by a hinge,
A first receiving member that is provided integrally with the hinge and that allows the side floor plate to rotate upward from a horizontal state with respect to the central floor plate and prevents the horizontal floor plate from rotating downward from the horizontal state. The bed apparatus according to claim 1, further comprising: The hinge is
A first connecting piece attached to the upper surface of the end portion in the width direction of the central floor plate, and connected to the first connecting piece attached to the upper surface of the end portion in the width direction of the side floor plate so as to be rotatable by a connecting shaft. The bed apparatus according to claim 10, further comprising: a second connecting piece that is formed, and the first receiving member that is integrally formed with the first connecting piece. The first receiving member has a first end formed integrally with the first connecting piece, the other end extended downward, and a terminal end bent toward the second connecting piece. Formed in the engaging portion of
When the side floor slab is rotated downward from the raised state and becomes horizontal with respect to the central floor slab, the lower surface of one end portion in the width direction of the side floor slab is the first receiving member. The bed apparatus according to claim 11, wherein the bed apparatus is engaged with the first engaging portion. The central floor plate and the side floor plate are integrally formed of resin, and the upper end portion in the thickness direction between both ends in the width direction of the central floor plate and one end in the width direction of the pair of side floor plates is flexible. The bed apparatus according to any one of claims 10 to 12, wherein the bed apparatus is rotatably connected by a thin portion. A bed frame,
A swing frame provided on the bed frame and driven to swing in the width direction intersecting the longitudinal direction;
A floor plate provided on the upper surface of the swing frame and driven to swing in the width direction intersecting the longitudinal direction together with the swing frame;
The floorboard body is
A central floor plate provided on the upper surface of the swing frame;
Side floor boards arranged on both sides in the width direction of the center floor board, and one end in the width direction are rotatably connected to the center floor board by a hinge,
A first receiving member that is provided integrally with the hinge and that allows the side floor plate to rotate upward from a horizontal state with respect to the central floor plate and prevents the horizontal floor plate from rotating downward from the horizontal state. A bed apparatus comprising: A bed frame,
A swing frame provided on the bed frame and driven to swing in the width direction intersecting the longitudinal direction;
A floor plate provided on the upper surface of the swing frame and driven to swing in the width direction intersecting the longitudinal direction together with the swing frame;
The floorboard body is
A central floor plate provided on the upper surface of the swing frame;
Side floor boards arranged on both sides in the width direction of the central floor board and rotatably connected to the central floor board;
Provided either on either side in the width direction of the central floor plate or on a side portion of the pair of side floor plates facing the both sides of the central floor plate, and the side floor plate is upward from a horizontal state with respect to the central floor plate. A bed apparatus comprising: a third receiving member that allows rotation and prevents rotation downward from a horizontal state.

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