JP7738321B2 - Board and bed equipped with same - Google Patents

Description

The present invention relates to a board used as a headboard or footboard for a bed, and a bed equipped with the same.

Some conventional beds, such as those described in Patent Document 1, have headboards and footboards that are curved on both longitudinal sides of the bed body. The boards used for these headboards and footboards have a curved main body portion with the middle section in the width direction of the bed convex outward in the longitudinal direction of the bed, making them less likely to deform in the longitudinal direction of the bed and making it easier to ensure the necessary rigidity.

However, when the main body of the board becomes difficult to deform, the force acting on the main body acts directly on the attachment part to the bed body, which creates the problem of being easily damaged between the main body and the attachment part.

Patent Publication No. 2017-46850

The problem to be solved is that boards applied to curved headboards or footboards are easily damaged by forces acting on the main body.

The present invention provides a board comprising: a wooden main body portion erected along the width direction on the longitudinal edge of the bed body; and an attachment portion attached to the main body portion for attachment to the bed body , the main body portion being formed by laminating two vertical veneers having vertical grain directions along the erection direction between two horizontal veneers having horizontal grain directions along the width direction; the board is curved so that the central portion in the width direction is convex outward in the longitudinal direction; the attachment portion being formed by a pair of attachment pieces spaced apart in the width direction; and the board comprising: attachment fittings attached to each of the pair of attachment pieces; and a cover extending across the pair of attachment pieces in the width direction and attached to the pair of attachment pieces.

The present invention also provides a bed equipped with the above board.

The present invention can reduce damage caused by forces acting on the main body of a board applied to a curved headboard or footboard.

FIG. 1 is a perspective view showing a bed (first embodiment); FIG. 2 is a perspective view showing a board that is applied to the headboard and footboard of the bed of FIG. 1 (Example 1). FIG. 3 is a side view of the board of FIG. 2 (Example 1). FIG. 3 is a plan view of the board of FIG. 2 (Example 1). FIG. 5 is a cross-sectional view taken along line VV in FIG. 4 (Example 1). FIG. 3 is a front view showing the main body and the mounting portion of the board of FIG. 2 (Embodiment 1); FIG. 3 is a longitudinal sectional view showing the laminated structure of the main body and the mounting portion of the board of FIG. 2 (Example 1). FIG. 3 is a cross-sectional view showing the laminated structure of the main body and the mounting portion of the board of FIG. 2 (Example 1). FIG. 3 is a plan view showing the relationship between the board and the bed body in FIG. 2 (Example 1).

The goal of reducing damage caused by forces acting on the main body of a board applied to a curved headboard or footboard is achieved by using a wooden board.

That is, the board (11) comprises a wooden main body (13) erected along the width direction from the longitudinal edge of the bed body (1a), and an attachment portion (15) attached to the main body (13) for attaching to the bed body (1a). The main body (13) is laminated so that two vertical veneers (21) with vertical fibers aligned along the erection direction are sandwiched between two horizontal veneers (23) with horizontal fibers aligned along the width direction, and the center portion in the width direction is curved so that it convexly extends outward in the longitudinal direction.

The main body (13) may have three horizontal veneers (23) located on both sides and in the center in the stacking direction, and may be stacked so that two vertical veneers (21) are sandwiched between the central horizontal veneer (23) and each of the horizontal veneers (23) on both sides.

The main body portion (13) may be configured to curve more as it moves away from the bed body (1a) in the upright direction.

The mounting portion (15) may be integral with the main body portion (13) and may have the same laminated structure as the main body portion (13).

The mounting portion (15) consists of a pair of mounting pieces (15a, 15b) spaced apart in the width direction, and the board (11) may include mounting brackets (17) attached to each of the pair of mounting pieces (15a, 15b), and a cover (19) that is provided between the pair of mounting pieces (15a, 15b) in the width direction and attached to the pair of mounting pieces (15a, 15b).

The mounting bracket (17) may be fastened together with the mounting pieces (15a, 15b) to the cover (19).

The cover (19) may have a protrusion (39) that protrudes longitudinally inward from the main body (13) and covers the gap between the main body (13) and the bed body (1a).

Figure 1 is a perspective view showing a bed incorporating a board according to Example 1 of the present invention.

Bed 1 is a nursing bed used, for example, in nursing homes, hospitals, etc. This bed 1 is configured with a headboard 11a and a footboard 11b attached to a bed body 1a. Note that the footboard 11b may be omitted.

The bed body 1a is supported on a support surface such as the floor via legs 3, with the bed frame 5 being able to move up and down. A bottom 7 is attached to the bed frame 5, and a mattress 9 is placed on the bottom 7.

On both longitudinal sides of the bed body 1a, a headboard 11a and a footboard 11b, consisting of the board 11 of this embodiment, are provided from the bed frame 5. Note that the longitudinal direction and width direction refer to the longitudinal direction and width direction of the bed 1 when viewed from above.

Figure 2 is a perspective view showing the board 11 attached to the bed 1 in Figure 1. Figure 3 is a side view of the board 11 in Figure 2, Figure 4 is a plan view of the same, and Figure 5 is a cross-sectional view taken along line V-V in Figure 4. Figure 6 is a front view showing the main body 13 and attachment portion 15 of the board 11.

Note that the headboard 11a and footboard 11b of the board 11 have a common structure, so we will only explain the footboard 11b and will omit an explanation of the headboard 11a.

The board 11 in this embodiment comprises a main body 13, a mounting portion 15, a mounting bracket 17, and a cover 19.

The main body 13 is a curved wooden plate that stands upright along the width of the bed 1 at the longitudinal edge. In this embodiment, the standing direction is the vertical direction. However, the standing direction may also be inclined relative to the vertical direction.

The main body 13 is curved so that the central portion in the width direction is convex outward in the longitudinal direction, and the overall curved shape is arc-shaped. However, the curved shape of the main body 13 may be only a portion, such as the central portion in the width direction. Note that the central portion in the width direction does not mean the exact center, but may be a portion displaced to one side or the other in the width direction from the center. The curve of such a main body 13 gradually increases in the upright direction as it moves away from the bed body 1a, i.e., upward.

Figure 7 is a longitudinal cross-sectional view showing the laminated structure of the main body 13 and mounting portion 15 of the board 11, and Figure 8 is a transverse cross-sectional view of the same. Note that the longitudinal cross-sectional view of Figure 7 shows a cross-section along the vertical direction from the main body 13 to the mounting portion 15, and the transverse cross-sectional view of Figure 8 shows a cross-section along the width direction of the main body 13. In both Figures 7 and 8, hatching in the cross-section indicates the fiber direction.

The main body 13 is made by laminating horizontal veneers 21 and vertical veneers 23. The horizontal veneers 21 are wooden veneers with fibers running horizontally across the width of the bed, and the vertical veneers 23 are wooden veneers with fibers running vertically along the erection direction of the board 11.

The main body 13 in this embodiment is a 7-ply plywood made up of seven laminated veneers 21, 23. The horizontal veneers 21 are positioned on both sides and in the center in the stacking direction, and two vertical veneers 23 are sandwiched between the central horizontal veneer 21 and each of the two horizontal veneers 21 on either side.

The main body 13 of this embodiment therefore shares a central horizontal veneer 21, and is stacked with two vertical veneers 23 sandwiched between two horizontal veneers 21 on either side of the central horizontal veneer 21. The main body 13 may also be a four-ply plywood made by stacking four veneers 21, 23. In this case, it is sufficient to simply stack two vertical veneers 23 sandwiched between two horizontal veneers 21.

The horizontal veneers 21 and vertical veneers 23 have the same material and thickness in the stacking direction, and only the fiber direction differs. However, the horizontal veneers 21 and vertical veneers 23 may also differ from each other in material and thickness in the stacking direction.

In this embodiment, the main body 13 has veneer 25 attached to the outside of the horizontal veneers 21 on both sides in the stacking direction. The veneer 25 is an extremely thin wooden sheet. This veneer 25 may be omitted or replaced with a resin film or the like.

This main body 13 has an attachment portion 15 for attaching to the bed body 1a side. Note that the bed body 1a side refers to the attachment point of the board 11.

In this embodiment, the mounting portion 15 consists of a pair of mounting pieces 15a. The mounting pieces 15a are integrally formed on the lower edge of the main body portion 13 and are formed in the shape of a rectangular plate. The mounting pieces 15a are arranged on both sides with a gap between them in the width direction. The layered structure of the mounting portion 15 is the same as that of the main body portion 13.

The layered structure of the mounting piece 15a may be different from that of the main body 13. The mounting piece 15 may also have a single mounting piece. The mounting piece 15 may also be a separate mounting piece instead of being an integral part of the main body 13.

The mounting brackets 17 are used for attachment to the bed body 1a and are attached to each of the pair of mounting pieces 15a. The mounting brackets 17 are composed of a base portion 27 and an engagement portion 29. The base portion 27 is formed in a plate shape and is attached to the mounting pieces 15a in an overlapping state. The base portion 27 is attached to the mounting pieces 15a with bolts 31.

The engagement portion 29 includes a hook portion 33 and a lock portion 35. The hook portion 33 engages with an engagement protrusion 37 on the bed body 1a, which fits into upper and lower hook grooves 33a and 33b. The lock portion 35 is rotatable relative to the engagement portion 29 between a locked position and an unlocked position.

When in the locked position, the locking portion 35 engages with the engaging protrusion 37 engaged in the upper hook groove 33a, maintaining the engagement of the hook grooves 33a and 33b with the engaging protrusion 37. When in the unlocked position, the locking portion 35 can release the engagement of the hook grooves 33a and 33b with the engaging protrusion 37. Note that the locking portion 35 on the right side of Figure 4 and Figure 5 is in the unlocked position, while the locking portion 35 on the left side of Figure 4 is in the locked position.

The cover 19 is a channel member made of resin or the like, and opens longitudinally toward the bed body 1a. The cover 19 is provided along the width direction of the main body 13 of the board 11. The cover 19 covers the portion of the board 11 where it is attached to the bed body 1a.

The cover 19 is fastened together with the mounting bracket 17 to the mounting piece 15a of the mounting portion 15. That is, the bolt 31 that connects the mounting bracket 17 to the mounting piece 15a is inserted through the mounting piece 15a and threaded into the female thread portion 19a of the cover 19.

This cover 19 prevents deformation of the main body 13 of the board 11 due to temperature and humidity, and maintains the position of the mounting brackets 17. As a result, it allows for easy and reliable attachment to the bed body 1a using the mounting brackets 17 on both sides of the width.

In particular, the cover 19 is fastened together with the mounting bracket 17 to the mounting piece 15a of the mounting portion 15, so the positional relationship of the mounting bracket 17 can be reliably maintained.

The cover 19 in this embodiment has a protrusion 39 that protrudes longitudinally inward from the main body 13 of the board 11. The longitudinal inward side refers to the inside of the bed 1, with the board 11 as the boundary. The locking portions 35 of the mounting brackets 17 are flush with both widthwise sides of the protrusion 39.

As shown in Figure 9, this protrusion 39 covers the gap G between the main body 13 of the board 11 and the bed body 1a (bed frame 5) in a plan view. This prevents wind from entering the gap G and prevents feet from getting into the gap G.

In this embodiment, the curved body 13 of the board 11 makes it less likely that the head or feet will hit the body 13 of the board 11 even if they extend beyond the mattress 9. However, this tends to increase the gap G, which can be covered using the cover 19.

In this bed 1, when a longitudinal force acts on the main body 13 of the board 11, as shown by the arrows in Figures 3, 7, and 8, the force is dispersed by the curved shape with the center of the width being convex. In other words, the force is dispersed in a direction along the board 11 and a direction perpendicular to the board 11, depending on the direction in which the force is applied and the inclination of the main body 13 of the board 11 at the part where the force is applied.

A force perpendicular to the board 11 acts to deflect the main body 13 in the plan view of Figure 3. At this time, deflection of the main body 13 of the board 11 is suppressed by the horizontal veneers 21 located on both sides and in the center in the stacking direction, as shown in Figure 8. Furthermore, in the stacked structure of the main body 13, the horizontal veneers 21 and vertical veneers 23 form pairs, improving the overall rigidity and suppressing deflection due to localized forces.

As a result, forces perpendicular to the board 11 are more likely to act between the main body 13 and the mounting portion 15 of the board 11.

Between the main body portion 13 and the mounting portion 15, deflection is suppressed by two vertical veneers 23 sandwiched between the horizontal veneers 21 on both sides and in the center in the stacking direction. Because the vertical veneers 23 are stacked in greater numbers than the horizontal veneers 21, as shown in Figure 7, deflection between the main body portion 13 and the mounting portion 15 can be reliably suppressed. Furthermore, because the vertical veneers 23 are stacked in pairs, deflection between the main body portion 13 and the mounting portion 15 can be more reliably suppressed.

Therefore, in a board 11 applied to a curved headboard 11a or footboard 11b, damage caused by forces acting on the main body portion 13 can be reduced.

In this way, in this embodiment, the curved shape of the board 11 distributes the force, and deflection of the main body 13 of the board 11 itself, which is relatively unlikely to deflect due to localized force, is suppressed by the horizontal veneers 21, which have a smaller number of layers, while deflection between the main body 13 of the board 11 and the mounting portion 15, which is relatively prone to deflection even due to localized force, is suppressed by the vertical veneers 23, which have a larger number of layers. As a result, deflection and damage to the entire board 11 can be suppressed, improving durability.

Even if the mounting portion 15 is separate from the main body portion 13 and is connected to the main body portion 13 with fasteners such as bolts, damage to the connection can be suppressed by the laminated structure of the main body portion 13.

REFERENCE SIGNS LIST 1 bed 1a bed body 3 lifting mechanism 5 bed frame 11 board 11a headboard 11b footboard 13 body part 15 mounting parts 15a, 15b mounting pieces 17 mounting bracket 19 cover 21 horizontal veneer 23 vertical veneer 39 protrusion

Claims (7)

a wooden main body portion erected along the width direction at the longitudinal edge of the bed body;
an attachment portion provided on the main body portion for attaching to the bed main body side ;
The main body is a board formed by stacking two vertical veneers having a vertical fiber direction along the vertical installation direction between two horizontal veneers having a horizontal fiber direction along the width direction, and the central part in the width direction is curved so as to be convex outward in the longitudinal direction,
The attachment portion is composed of a pair of attachment pieces spaced apart in the width direction,
mounting brackets attached to the pair of mounting pieces, respectively;
a cover provided across the pair of mounting pieces in the width direction and attached to the pair of mounting pieces,
board. 10. The board of claim 1,
The main body has three horizontal veneers located on both sides and in the center in the stacking direction, and is stacked so that two vertical veneers are sandwiched between the central horizontal veneer and the horizontal veneers on both sides.
board. 3. The board of claim 1 or 2,
The main body portion curves more as it moves away from the bed body in the upright direction.
board The board according to any one of claims 1 to 3,
The mounting portion is integrally formed with the main body portion and has the same laminated structure as the main body portion.
board. The board of any one of claims 1 to 4,
The mounting bracket is fastened to the mounting piece together with the cover.
board. The board of any one of claims 1 to 5 ,
The cover includes a protrusion that protrudes inward from the main body in the longitudinal direction and covers a gap between the main body and the bed body side.
board. A bed equipped with the board according to any one of claims 1 to 6.