JP7045690B2 - Closure opening / closing device and various devices - Google Patents

Description

The present invention is a lid opening / closing device suitable for opening / closing a lid of furniture such as a manuscript crimping plate of office equipment such as a copier or a printing machine or a cabinet, and various types using this lid opening / closing device. Regarding equipment.

Conventionally, as a lid opening / closing device used for a document crimping plate opening / closing device for office equipment such as a copier, for example, as described in Patent Document 1 below, a mounting base attached to the device main body side and this mounting base It has a mounting member having raised both side plates, a back plate and both side plates bent from the back plate, and the both side plates are rotatably attached to both side plates of the mounting member via a first connecting member. It has a support member, a back plate, both side plates bent from the back plate, and a mounting base for a document crimping plate bent from both side plates, and the both side plates are placed on the free end side of both side plates of the support member. A lift member rotatably attached to the support member via a connecting member in a direction different from that of the support member, and an operating member provided at a position of the lift member that rotates with rotation around the second connecting member. The lift member is urged in the direction of overlapping with the support member by bouncing between the pressure receiving member provided between the both side plates of the mounting member and the pressure receiving member and the operating member. A lid opening / closing device having an elastic member for urging the member in the opening direction of the original crimping plate is known, and an office device using this lid opening / closing device is known. This type is now widespread and is now used in most office equipment such as copiers.

Japanese Unexamined Patent Publication No. 2013-97363

In the conventionally known lid opening / closing device and office equipment configured as described above, most of the document crimping plates C attached to the lid opening / closing device B are equipped with an automatic document feeder, so that the document crimping plate C itself is these. Due to the built-in automatic document feed mechanism, it is quite tall (thick). Then, when the copying machine A is installed on the wall K side of the installation location (although most of the installation methods are such), the following inconveniences occur, and therefore, countermeasures are required.

That is, when a thick document (in the case of a thick document such as a book) (in the case of a thick document such as a book) not shown is mounted on the document mounting table d of the apparatus main body D, or a contact (not shown) of the document mounting table d. When the glass is removed and the inside of the copying machine A is repaired and inspected, it is necessary to open the original crimping plate C to the fully opened state (90 degrees plus). Then, as shown in FIG. 15, the document crimping plate C cannot avoid protruding to the rear portion of the apparatus main body D, so that there is a problem that a so-called dead space DS is generated between the document crimping plate C and the rear wall portion K. ..

Therefore, an object of the present invention is to prevent the lid from protruding to the rear of the main body of the apparatus even when the lid (manuscript crimping plate) is fully opened, and to provide various devices installed on the wall side to the wall side. It is an object of the present invention to provide a lid opening / closing device capable of omitting a dead space generated between them, and various devices (office equipment) using this lid opening / closing device.

In the description of the present application and the scope of claims, since the field in which the switchgear is used is not limited to office equipment such as copiers, the manuscript crimping plate is referred to as a lid, and the office equipment is referred to as various equipment. The opening / closing device that attaches the lid to various devices so that it can be opened / closed is called the lid opening / closing device.

In order to achieve the above-mentioned object, the lid opening / closing device according to claim 1 of the present invention has a mounting member attached to the device main body side and a shaft rotatably attached to both side plates of the mounting member via a first connecting member. Provided between the attached support member, a lift member rotatably attached to both side plates on the free end side of the support member via a second connecting member in a direction opposite to the support member, and both side plates of the mounting member. A cam slider provided slidably in the support member in contact with the pressure receiving member, and a spring slidably provided in the support member in contact with the actuating member provided on the free end side of the lift member with respect to the support member. Opposite to the lift member via the second connecting member to the receiving member, the elastic member provided between the cam slider and the spring receiving member, and both side plates of the lift member and both side plates of the support member. It consists of a bracket member that attaches a document crimping plate that is rotatably attached in a direction, and this bracket member operates together with the lift member within a predetermined rotation angle range of the lift member, but the lift member is predetermined. It is characterized by having a rotation control means configured to be able to rotate independently when the rotation angle is exceeded.

At that time, in the second aspect of the present invention, the rotation control means of the bracket member is provided between the support member and the mounting member, the first rotation regulating means, the lift member, and the bracket member. It is characterized in that it is composed of a second rotation regulating means provided between them and the elasticity of the elastic member acting on the operating member.

Further, in the third aspect of the present invention, the first rotation regulating means according to the second aspect of the present invention is provided on the rear side of the mounting member so as to abut on the rear side at a predetermined rotation angle of the support member. It is characterized by being composed of a stopper portion.

Further, in the fourth aspect of the present invention, the second rotation regulating means according to the second aspect of the present invention is provided on both side plates of the bracket member so as to engage with both side plates of the lift member from one direction. It is characterized by being composed of.

Further, the invention of claim 5 according to the present invention is a protrusion in which the second rotation regulating means is provided on the lift member and abuts against an engaging portion provided on the bracket member to regulate the rotation of the bracket member. It is characterized by being configured.

In the invention of claim 6, the bracket member has both side plates for connecting the opposing side plates on the second connecting member side, and the mounting base of the bracket member is bent outward from the facing side plates. Has a shape.

In the invention of claim 7 , the bracket member is provided on the outside of both side plates of the lift member, and the engaging portion is attached to both side plates of the bracket member so as to engage with both side plates of the lift member. It is formed by bending a part inward.

In the invention of claim 8 , a friction generating means for generating a frictional force as the bracket member rotates with respect to the lift member is provided.

The ninth aspect of the present invention is various devices using the lid opening / closing device according to each of the above-mentioned inventions.

According to the present invention, the lid (manuscript crimping plate) is opened by rotating the bracket member with respect to the support member in a state where the elastic member assists the original crimping plate from the closed state and lifts the original crimping plate diagonally. Can be opened up to an angle. Therefore, the angle of the lid (manuscript crimping plate) in the opened state with the center of gravity of the lid (manuscript crimping plate) positioned toward the front side compared to the case where the support member is simply rotated to the angle of the opened state. Can be opened to. Therefore, without providing a large dead space between the device main body and the wall on the back side thereof, interference between the device main body and the wall on the back side thereof is avoided, and the angle of the lid (manuscript crimping plate) in the opened state. It is possible to provide a lid opening / closing device that can be opened by and office equipment using this lid opening / closing device.

In the invention of claim 2, the bracket member is pivotally attached to the support member and the lift member by utilizing the existing second connecting member. Therefore, the total number of parts is reduced as compared with the case of using another new second connecting member, and a high-strength lid opening / closing device can be configured in a compact and lightweight manner.

In the invention of claim 3, the angle of the open state of the document crimping plate is precisely set by the second rotation regulating means. In addition, since the posture of the original crimping plate is rotated to the open angle by the bracket member after the elastic member assists to move the center of gravity of the original crimping plate to a high position, the weight is heavy even without the assist by the elastic member. The original crimping plate can be rotated with a light operating force.

In the invention of claim 4, a highly reliable first rotation regulating means can be realized with a simple structure. Further, in the invention of claim 5, a highly reliable second rotation regulating means can be realized with a simple structure. In the invention of claim 6, a precise and highly reliable bracket member can be manufactured at low cost by using sheet metal without welding or assembling work.

In the invention of claim 7 , the engaging portion can be easily made small and lightweight in the bracket member made of sheet metal.

In the invention of claim 8 , it is possible to realize a so-called free stop function in which the original crimping plate can be stopped at an arbitrary angle between a predetermined angle and an open state by a friction mechanism.

According to claim 9 , it is possible to provide various devices that can omit the installation space.

It is a perspective view of the part on the upper side of the multifunction device which is an example of the office equipment using the lid opening / closing device which concerns on this invention. It is a side view which shows the state which attached the lid opening / closing device which concerns on this invention to a multifunction device. FIG. 3 is an enlarged side view of the lid opening / closing device shown in FIG. 2. It is a front view before attaching the lid opening / closing device shown in FIG. 2 to a multifunction device. FIG. 3 is a perspective view of the lid opening / closing device shown in FIG. 4 as viewed from an oblique direction. It is an exploded perspective view of the lid opening / closing device which concerns on this invention. The connecting member and the operating member of the lid opening / closing device according to the present invention are shown, (a) is a perspective view of the first connecting member, (b) is a perspective view of the second connecting member, and (c) is a perspective view of the operating member. Is. It is explanatory drawing of the structure of the bracket member of Example 1, (a) is a plan view, (b) is a front view, (c) is a side view. FIG. 3 is a vertical cross-sectional view of the lid opening / closing device shown in FIG. The lid opening / closing device shown in FIG. 3 is shown in a state of being opened up to 30 degrees, (a) is a side view thereof, and (b) is a vertical sectional view thereof. The lid opening / closing device shown in FIG. 3 is shown in a state of being opened up to 60 degrees, (a) is a side view thereof, and (b) is a vertical sectional view thereof. A state in which the lid body is opened up to 90 degrees by using the lid body opening / closing device shown in FIG. 3 is shown, (a) is a side view thereof, and (b) is a vertical sectional view thereof. In the lid opening / closing device shown in FIG. 3, the operation when the original is a thick original such as a book will be described. FIG. 3A is a side view thereof, and FIG. 3B is a vertical sectional view thereof. It is explanatory drawing in the case where the multifunction device using the lid opening / closing device which concerns on this invention is installed near the wall, and the original crimping plate is fully opened. It is explanatory drawing in the case of installing a multifunction device using a conventionally known lid opening / closing device near a wall and fully opening the original crimping plate.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following description, examples of the lid opening / closing device used in the copying machine or the multifunction device will be described, but as described above, the lid opening / closing device described below is for printing other than the copying machine or the multifunction device. It can be widely used as an opening / closing device for office equipment such as machines, facsimiles, scanners, or cabinets. Therefore, since the subject of the present invention is not limited to the lid opening / closing device used in copiers and multifunction devices, the original crimping plate is used as the lid, and the title of the invention is the lid opening / closing device. The devices that use the above are various devices. In the description of the present application and the claims, these terms may be mixed, but the three have the same meaning.

Further, the terms such as the mounting member 1, the support member 2, the lift member 6, the pressure receiving member 5, the actuating member 9, the elastic member 12, and the bracket member 21 described in the present specification and claims are one embodiment thereof. The concept is broader than that described below, but is not limited to the specific mounting member 1, support member 2, lift member 6, actuating member 9, elastic member 12, and bracket member 21 used as the above.

According to the drawings, first, as shown in FIG. 1, an automatic document feeder c is provided on the apparatus main body D of the copying machine A according to the present invention via a pair of lid opening / closing devices B and B'. The lid C is attached so as to be openable and closable. Of these pair of lid opening / closing devices B and B', the lid opening / closing device B on the left side in the figure has a large load applied during the opening / closing operation on the heavy mechanism side of the automatic document feeder c, so that the elastic member ( In 12), a double coil spring system in which two coil springs are juxtaposed is adopted. On the other hand, since the load of the lid opening / closing device B'on the right side in the figure is relatively small, it is not shown, but is the elastic member (12) a single coil spring system composed of one coil spring? Or, one using a torsion spring is adopted. However, since the configuration around the bracket member (6), which is the main part of the present invention, is basically the same configuration, the left lid opening / closing device B will be described in the following description. In the case of a large-sized multifunction device or other office equipment, the weight of the lid C increases, so that the coil spring has a diameter regardless of whether it is two or one. Different coil springs may be stacked concentrically.

Next, as shown in FIG. 2, in the closed state of the lid body C, the lid body C is parallel to the document mounting table d of the apparatus main body D and is in close contact with the document mounting table d to cause light leakage. It is blocking. As shown in FIG. 14, when the lid opening / closing device B according to the present invention is used, the lid C does not protrude to the rear portion of the device main body D in the fully opened state (90 degrees) of the lid C, so that the copy is made. When the machine is installed in contact with a wall or the like, it is not necessary to take a space for the lid C to protrude from the rear portion, so that the installation space for office equipment can be omitted.

As shown in FIGS. 3 to 6, the lid opening / closing device B according to the present invention has a mounting member 1 attached to the device main body D side and a first connecting member 3 to both side plates b and 1b of the mounting member 1. The support member 2 rotatably attached to the support member 2 and the side plates 2b and 2b on the free end side of the support member 2 are pivotally attached to the support member 2 via the second connecting member 4 in a direction rotatably opposite to the support member 2. A cam slider 10 slidably provided in the support member 2 in contact with the lift member 6 and the pressure receiving member 5 provided between the both side plates 1b and 1b of the mounting member 1, and the support of the lift member 6. A spring receiving member 11 slidably provided in the support member 2 provided in contact with the operating member 9 provided on the free end side with respect to the member 2, and an elastic spring receiving member 11 between the cam slider 10 and the spring receiving member 11. The elastic member 12, the side plates 6b and 6b of the lift member 6 and the side plates 2b and 2b of the support member 2 are axially attached to the side plates 2b and 2b of the support member 2 via the second connecting member 4 so as to be rotatable in the direction opposite to the lift member 6. It is composed of a bracket member 21 to which the lid C is attached, and the bracket member 21 operates together with the lift member 6 in a predetermined rotation angle range of the lift member 6, but the lift member 6 rotates at a predetermined position. It has a rotation control means configured so that it can rotate independently when it exceeds an angle.

The mounting member 1 is a mounting base 1a mounted on the apparatus main body D and both sides bent in an upward direction (including a direction substantially orthogonal to the mounting base 1a) orthogonal to the mounting base 1a from both side ends of the mounting base 1a. Locking pieces 1j provided on both sides of the plates 1b and 1b by bending them from one end (rear end) of the mounting base 1a in an upward direction (including a direction substantially orthogonal to the mounting base 1a). It is composed of a substantially rectangular rear plate 1c in which 1j is locked in the locking grooves 1i and 1i provided on both side plates 1b and 1b of the mounting member 1. A stopper plate 8 for regulating the maximum angle (60 °) of the support member 2 during the opening / closing operation of the lid C as the first rotation regulating means E is attached to the rear plate 1c via the mounting screws 8a and 8a. Has been done.

The first connecting member mounting holes 1d and 1d are through holes to which the first connecting member 3 is rotatably mounted. In the embodiment, the first connecting member 3 is a metal round bar provided with peripheral grooves 3d and 3d at both ends thereof, as shown in FIG. 7A, and is the first connecting member of the mounting member 1. The first connecting member insertion holes 2e and 2e of the support member 2 are connected through the bearing holes 3e and 3e of the bearing members 3a and 3a attached to the mounting holes 1d and 1d, and these first connecting member insertions are inserted. E-rings 3c and 3c are fitted into the peripheral grooves 3d and 3d provided at both ends protruding from the holes 2e and 2e via washers 3b and 3b to prevent them from coming off.

The first connecting member 3 is divided into two parts, and the side plates 1b and 1b of the mounting member 1 and the side plates 2b and 2b of the support member 2 are connected separately with a common axis. Is also good. Further, a case where the respective side plates 1b, 1b, 2b, and 2b are separately connected by eyelets is also included.

The pressure receiving member mounting holes 1e and 1e are through holes in which the pressure receiving member 5 is non-rotatably mounted in the embodiment. The pressure receiving member 5 is passed through a metal pressure receiving pin 5a axially mounted between the side plates 1b and 1b of the mounting member 1 and an insertion hole 5d provided in the axial direction, and the pressure receiving member 5 is passed through the insertion hole 5d provided in the axial direction with respect to the pressure receiving pin 5a. It is composed of a synthetic resin rotating roller 5b that is rotatably attached. The pressure receiving pin 5a is inserted into the pressure receiving member mounting holes 1e and 1e, and then both ends thereof are crimped and fixed to the pressure receiving member mounting holes 1e and 1e of the mounting member 1. The pressure receiving pin 5a may be restricted from coming off by using an E ring, or may be rotatably attached to the pressure receiving member mounting holes 1e and 1e.

The rotary roller 5b has a cylindrical side surface in contact with the cam portion 10a of the cam slider 10. Although not shown, lubricating grease is applied to the contact surface between the cam portion 10a and the rotary roller 5b. The material of the rotating roller 5b is not limited to the synthetic resin, but may be a sintered metal, a ceramic, a machined product, or the like.

The pressure receiving member 5 may be integrally or integrally configured with the pressure receiving pin 5a and the rotary roller 5b so that the pressure receiving member 5 can be rotatably attached to the pressure receiving member mounting holes 1e and 1e. Further, the cam portion can be configured to have a curved rounded shape, and the sliding contact portion side where the rotating roller comes into contact with the cam portion can be configured to have a surface contact with the rounded shape of the cam portion. Further, the pressure receiving member 5 may be a metal shaft covered with a cylinder made of synthetic resin, and includes a member in which a fixing piece is projected from the cylinder toward the first connecting member.

The mounting holes 1g and 1h provided in the mounting base 1a are through holes through which a mounting screw 1m and a mounting button 1n are inserted when the mounting base 1a is mounted on the apparatus main body a.

The support member 2 is a holding plate 2c formed by bending the back plate 2a, both side plates 2b and 2b bent downward from both ends of the back plate 2a, and both side plates 2b and 2b bent inward from the lower end side. , 2c, and both side plates 2b and 2b are rotatably connected to both side plates 1b and 1b of the mounting member 1 by the first connecting member 3 as described above. On the free end side of the side plates 2b and 2b, the lift member 6 is pivotally attached via the second connecting member 4 so as to be rotatable in the direction opposite to that of the support member 2, and in FIGS. 5 and 6. As shown, guide grooves 2d and 2d into which both end sides of the actuating member 9 enter when the lift member 6 is inverted are provided.

The second connecting member insertion holes 2f and 2f are through holes through which the second connecting member 4 is inserted. The second connecting member 4 is a metal round bar having D-cut 4d at one end and peripheral grooves 4c and 4c formed at both ends, as shown in FIG. 7B. The shaft portion 4a inserts the second connecting member insertion holes 2f and 2f of the support member 2, the second connecting member connecting holes 6d and 6d of the lift member 6, and the second connecting member connecting holes 21e and 21e of the bracket member 21. As a result, the lift member 6 and the bracket member 21 are rotatably connected to the support member 2 in a direction opposite to the rotation direction of the support member 2 with respect to the mounting member 1. The arcuate ones provided on the sides of the second connecting member insertion holes 2f and 2f of the side plates 2b and 2b are convex portions 2m and 2m for spacers.

The second connecting member 4 has peripheral grooves 4c and 4c at both ends, and bearing members 4s, 4s, and a spacer between the second connecting member connecting holes 6d and 6d and the second connecting member connecting holes 21e and 21e. 4p and 4p are intervening. Here, the bearing members 4s and 4s are for bearing the second connecting member 4, and the spacers 4p and 4p are for ensuring the space between the lift member 6 and the support member 2 evenly on the left and right sides. be. The second connecting member 4 is restricted from coming off with respect to the lift member 6 by fitting the E-rings 4b and 4b into the peripheral grooves 4c and 4c at both ends protruding from the second connecting member connecting holes 21e and 21e. There is.

The second connecting member 4 is also divided into two parts, and the support member 2, the lift member 6, and the side plates 2b, 2b, 6b, 6b, 21b, and 21b of the bracket member 21 have a common axis. Can be connected separately. In some cases, eyelets may be used. Further, as a friction torque generating means, between the side plates 2b and 2b of the support member 2 connected by the second connecting member 4, the side plates 6b and 6b of the lift member 6 and the side plates 21b and 21b of the bracket member 21. A friction mechanism including a friction washer or a spring washer having a known configuration may be provided. With such a configuration, it can be expected that the rotation of only the bracket member 21 is more reliably prevented and a stable opening / closing operation is performed, particularly when the lid C is opened / closed.

As described above, the first connecting member insertion holes 2e and 2e are through holes through which the first connecting member 3 is inserted. The stopper holes 2g and 2g are through holes for inserting a stopper pin (not shown) to hold the elastic member 12 in a compressed state between the cam slider 10 and the spring receiving member 11 when the support member 2 is assembled. ..

The relief grooves 2h and 2h of the support member 2 are through grooves having one end opened at the rear end portion of the back plate 2a, and are the stopper plates 8 as shown in FIGS. 5 and 6 when the lid C is opened. It forms a space for the stopper pieces 8f and 8f to enter.

The lift member 6 is composed of a back plate 6a and both side plates 6b and 6b bent in a downward direction (including a direction substantially orthogonal to the back plate 6a) orthogonal to the back plate 6a from both ends of the back plate 6a. , As shown in FIGS. 4 and 5, the support member 2 is configured to cover the support member 2 from the outside. A rod-shaped operating member 9 is non-rotatably attached to the side where the lift member 6 is axially attached by the second connecting member 4.

In the embodiment, the actuating member 9 is formed of a metal round bar, as shown in FIG. 7 (c), and has a D-cut 9c on one end side. The actuating member 9 is fixed to the lift member 6 by penetrating the actuating pin connecting holes 6e and 6e and crimping both ends.

As the operating member 9, the metal round bar may be used as it is, or a cylindrical contact member may be attached to the metal round bar, and the cross-sectional shape of the tubular contact member may be an ellipse other than a circle or an ellipse. It may be a rectangle or the like. The actuating member 9 may be further rotatably attached between the side plates 6b and 6b. Further, the lift member 6 may be provided with a top plate, and the top plate may be bent inward to form an operating member, or may be made of synthetic resin. It may be attached between the side plates 6b and 6b, or on the top plate or the back plate 6a.

The relief grooves 6g and 6g of the lift member 6 are through grooves having one end opened at the rear end portion of the back plate 6a, and the stopper pieces 8f and 8f of the stopper plate 8 shown in FIG. 6 when the lid C is opened. Form a space for entry.

The height adjusting means 7 includes an adjusting screw 7a and a nut 7b attached to the back plate 6a. The height adjusting means 7 finely adjusts the height (tilt) of the closed lid C with respect to the document mounting table d (contact glass) so that the lid C is evenly attached to the document mounting table d (contact glass). It is set and fixed so as to be crimped to the upper surface.

As shown in FIG. 8 and the like, the cam slider 10 and the spring receiving member 11 are held in the support member 2 by a C-shaped cross section surrounded by the back plate 2a, both side plates 2b and 2b, and the holding plates 2c and 2c. However, the elastic member 12 is slidably housed in the expansion / contraction direction.

The cam slider 10 and the spring receiving member 11 are each formed into a bottomed tubular body having a substantially rectangular cross section, and are housed in the support member 2 so that the openings 10b and 10b and the openings 11b and 11b face each other. There is.

The cam portion 10a of the cam slider 10 is in pressure contact with the pressure receiving member 5. As shown in FIGS. 6 and 9, a cam portion 10a having a flat top surface that is inclined in one direction is provided at the end portion of the cam slider 10 on the pressure receiving member 5 side, and a cover that covers the exposed side of the pressure receiving member 5. A portion 10c is provided.

The contact portion 11a of the spring receiving member 11 is in pressure contact with the operating member 9. As shown in FIG. 6, a contact portion 11a is provided so as to be raised at the end portion of the spring receiving member 11 on the actuating member 9 side. However, this contact portion 11a is not essential and may be a flat portion on one surface.

The cam slider 10 is pressed by the pressure receiving member 5 fixed to the mounting member 1 to pressurize and compress the elastic member 12. When the support member 2 rotates with respect to the mounting member 1 in the opening direction of the lid C about the first connecting member 3, the cam slider 10 moves in the direction of the arrow R3, and the compression of the elastic member 12 is relaxed. .. Therefore, the elastic member 12 exerts an assist force on the support member 2 and the lift member 6 to reduce the force required to lift the lid (C).

As shown in FIG. 6, an elastic member 12 composed of large-diameter coil springs 12a and 12a and small-diameter coil springs 12b and 12b is pressure-held between the cam slider 10 and the spring receiving member 11. The elastic member 12 realizes a large elastic coefficient by concentrically superimposing the small-diameter coil springs 12b and 12b inside the large-diameter coil springs 12a and 12a, and the cam slider 10 and the spring receiving member 11 are placed on each other. It is urged in the direction of separation.

The elastic member 12 is retracted while being housed in the support member 2 with both end portions inserted into the openings 10b and 10b of the cam slider 10 and the openings 11b and 11b of the spring receiving member 11. .. The number of coil springs constituting the elastic member 12 may be one or two or more, and may be arranged in parallel or in series. For example, it is possible to have two in parallel, two in series, one in series, and the like.

8A and 8B are explanatory views of the configuration of the bracket member of the first embodiment, where FIG. 8A is a plan view, FIG. 8B is a front view, and FIG. 8C is a side view. FIG. 9 is an explanatory diagram of a closed state of the lid opening / closing device of the first embodiment. FIG. 10 is an explanatory diagram of a state in which the lid opening / closing device of the first embodiment is opened up to 30 degrees, and FIG. 11 is an explanatory diagram of a state in which the lid opening / closing device of the first embodiment is opened up to 60 degrees.

As shown in FIG. 14, in the copying machine A of the first embodiment, which is an example of various devices such as a multifunction device, the support member 2 stops at a position rotated by 60 degrees with respect to the mounting member 1, and the bracket from this position. By rotating the member 21 by 30 degrees, the lid C is rotated by a total of 90 degrees with respect to the apparatus main body D, and the opened state of the lid C is obtained. Then, in order to control the rotation of the support member 2 and the bracket member 21, the first rotation regulating means E that regulates the rotation angle of the support member 2 with respect to the mounting member 1 to 60 degrees, and the bracket member for the support member 2 A second rotation regulating means F that regulates the rotation angle of 21 to 30 degrees is provided. Here, the combination of the numerical values of the angles of 60 degrees + 30 degrees = 90 degrees is an example, and it is possible to arbitrarily design such as 50 degrees + 50 degrees = 100 degrees.

As shown in FIG. 9 with reference to FIG. 6, in the lid opening / closing device B of the first embodiment, the bracket member 21 is attached to the mounting bases 21a and 21a attached to the lid (B) and the mounting bases 21a and 21a. It has both side plates 21b and 21b that have been raised, and the side plates 21b and 21b are rotatably attached to the free end side of the side plates 2b and 2b of the support member 2 in the direction opposite to the lift member 6. Has been done. The both side plates 21b and 21b are formed by bending from both ends of the connecting side plate 21c in a horizontal direction (including a direction substantially orthogonal to the connecting side plate 21c).

The mounting bases 21a and 21a fixed to the lid C are formed by bending from the side plates 21b and 21b to the outside in the horizontal direction (including the directions substantially orthogonal to each other) orthogonal to the mounting bases 21a and 21a, respectively. There is.

Since the bracket member 21 is pivotally attached to the support member 2 via the second connecting member 4, the bracket member 21 and the lift member 6 are attached to the support member 2 as shown in FIGS. 10 and 13. It is possible to rotate integrally around the second connecting member 4.

Since the bracket member 21 is provided on the outside of the side plates 6b and 6b of the lift member 6, the bracket member rotates with respect to the support member 2 regardless of the rotational state of the lift member 6 with respect to the support member 2. It's free.

As shown in FIG. 8, the bracket member 21 has a connecting side plate 21c that connects the opposing side plates 21b and 21b between the second connecting member 4 and the mounting base 21a, and the mounting base 21a of the bracket member 21 has. , It is bent outward from the opposing side plates 21b, 21b. Therefore, as shown in FIG. 13, the bracket member 21 is integrally rotatable with respect to the support member 2 without interfering with the lift member 6 regardless of the angle of the lift member 6 with respect to the support member 2.

As shown in FIG. 13A, the bracket member 21 transmits the rotation of the bracket member 21 around the second connecting member 4 in the closing direction to the lift member 6, but in the opening direction of the bracket member 21. It has a unidirectional engaging portion 21d that does not transmit rotation to the lift member 6. Therefore, the bracket member 21 rotates integrally with the lift member 6 when the thick document M is pressed by the lid body C. Further, the bracket member 21 and the lift member 6 rotate integrally until the opening angle of the lid body C reaches 60 degrees. However, when the opening angle of the lid C is 60 degrees or more, the rotation of the support member 2 with respect to the mounting member 1 is restricted to 60 degrees by the first rotation regulating means E, so that the bracket member 21 is the engaging portion of the lift member 6. It rotates independently away from 21d. Therefore, the lid body C can freely rotate in the range of 60 degrees to 90 degrees.

Specifically, the engaging portions 21d, 21d ... Are bracket members so as to engage the both side plates 6b, 6b of the lift member 6 from below as shown in FIGS. 8A and 8B. It is formed by bending a part of both side plates 21b and 21b of 21 inward. The reason for this is that when the lid C is opened, the bracket member 21 to which the lid C is attached seems to rotate independently with the second connecting member 4 as a fulcrum, but the bracket member 21 operates. Since the elastic member 12 acting on the member 9 is swiveled and urged with the first connecting member 3 as a fulcrum in the opening direction of the lid C, it swivels together with the support member 2 to open the lid C. It turns in the direction to assist the opening operation of the lid C.

When the lid C is opened up to 60 degrees, the support member 2 is prevented from further rotation by the first rotation regulating means E, but the bracket member 21 has no means for preventing the further opening operation of the lid C. Only the bracket member 21 rotates around the second connecting member 4 as a fulcrum, and allows the opening operation of the lid C attached to the bracket member 21. However, the rotation of the bracket member 21 from 60 degrees is blocked by the second rotation regulating means F, so that the bracket member 21 is stopped at an opening angle of 90 degrees of the lid. That is, when 21f and 21f come into contact with the protrusions (contact portions) 6k and 6k of the lift member 6, further rotation of the bracket member 21 via the second connecting member 4 is prevented. .. At this maximum opening angle of 90 degrees, the center of gravity of the lid C moves toward the front side, so that the opened state of the lid C is stable and does not close naturally. Therefore, the apparatus main body D It is easy and safe to repair and inspect. In addition, it facilitates the work of placing and removing thick manuscripts such as books on the manuscript placing table.

When closing the lid opened to the maximum opening angle (90 degrees in the embodiment), when the front end portion of the lid C is touched and pulled toward the closing angle, the bracket member 21 fulcrum the second connecting member 4. It is inverted to enable the closing operation of the lid C. When the lid body C is closed to 60 degrees, the engaging portions 21d and 21d of the bracket member 21 engage with the side plates 6b and 6b of the lift member 6 and become elastic to the elastic member 12 acting on the operating member 9. Against the support member 2, it rotates around the first connecting member 3 as a fulcrum to enable the closing operation of the lid body C, and the lid body C is closed without suddenly falling. When the lid C is closed to around 20 degrees, the weight of the lid C exceeds the elasticity of the elastic member, and the lid C is closed by its own weight.

Next, as shown in FIG. 13A, when the original is a thick original M like a book, the thick original M is placed on the original mounting table d (contact glass) and the lid C. When the lift member 6 that rotates around the second connecting member 4 with the thick document M as a fulcrum is pushed down, the support member together with the bracket member 21 resists the elasticity of the elastic member 12 acting on the operating member 9. It is possible to rotate in the direction opposite to the rotation direction of No. 2 to horizontally cover the upper surface of the thick document M and prevent the exposure from leaking to the outside. By releasing the pressing, the inverted lid C is pushed and returned to the original position by the elasticity of the elastic member 12 acting on the operating member 9. Therefore, the lid opening / closing device B can stably and evenly press the document on the upper surface of the document mounting table d of the apparatus main body D regardless of the thickness of the document.

As shown in FIG. 9, the first rotation regulating means E regulates the rotation angle of the support member 2 from the closed state of the lid C to a predetermined angle (60 degrees) less than the angle (90 degrees) in the opened state. .. As shown in FIG. 6, the first rotation regulating means E is composed of a stopper plate 8 attached to the rear plate 1c of the attachment member 1 with mounting screws 8a and 8a, and the mounting screws 8a and 8a are stopper plates. It is screwed to the female screws 1n and 1n of the rear plate 1c through the fixing holes 8g and 8g of 8.

The stopper plate 8 is composed of a mounting board portion 8b and stopper pieces 8f and 8f having a pair of convex portions 8c and 8c and protrusions 8d and 8d, which are formed by bending from both side portions of the mounting board portion 8b. ing. The rear plate 1c is provided with a pair of boss portions 1k and 1k for positioning that are fitted into the fixing holes 8g and 8g provided in the stopper plate 8.

The stopper plate 8 may be integrally provided on the rear plate 1c of the mounting member 1, and the angle of the support member 2 abuts on the abutting shaft or a pair of pins provided on the support member 2 in parallel with the actuating member 9. May be regulated. In the case of the abutment shaft, an elastic curved portion that elastically receives the abutment shaft or a friction portion that exerts a frictional force on the abutment shaft may be provided on the upper portion of the stopper plate 8.

As shown in FIG. 12, the second rotation regulating means F sets the rotation angle of the bracket member 21 from the state restricted to a predetermined angle (60 degrees) by the first rotation regulating means E to the angle (90 degrees) in the opened state. It is regulated to an angle (30 degrees) obtained by subtracting a predetermined angle (60 degrees) from. As shown in FIG. 12B, the second rotation regulating means F is provided on the lift member 6, and when the lid C is rotated from the closed state (0 degree) to the open state (90 degree). It is a protrusion 6k that abuts on the protrusion 21f of the bracket member 21 and regulates the rotation of the bracket member 21.

The rotation control means of the bracket member 21 according to claims 1 to 3 and 5 is not particularly designated with an instruction symbol, but the above-mentioned first rotation control means E, second rotation control means F, and elastic member 12 are used. As described above, the support member 2 is restricted to a rotation angle of 60 degrees by the first rotation regulating means E, and the rotation of the bracket member 21 with respect to the lid C is started from here toward 90 degrees. become. Further, the rotation angle of the bracket member 21 is restricted to 90 degrees by the second rotation regulating means F. Then, the elastic member 12 follows the opening / closing operation of the support member 2 accompanying the opening / closing operation of the lid C from 0 degrees to 60 degrees.

Next, the operation of the lid opening / closing device B of the first embodiment will be described.

As shown in FIGS. 3 and 9, in the closed state (0 degree) of the lid body C, the lid body C was closed and stabilized mainly due to the weight of the lid body C against the elasticity of the elastic member 12. It remains closed. At this point, the cam portion 10a of the cam slider 10 is provided with an inclination as shown by a broken line 10k, and the pressure receiving member 5 is configured to press the cam slider 10 diagonally downward to close the lid C. It is also possible to rotate and urge in the direction of formation. In the closed state (0 degree) of the lid body C, the pressure receiving member 5 receives the elasticity of the elastic member 12 in the most compressed state via the cam slider 10.

When the lid C is opened from the closed state, the support member 2, the lift member 6, and the bracket member 21 are always rotationally urged by the elastic member 12 in the direction of opening the lid C, so that the bracket member 21 Does not invert and rotates together with the support member 2 and the lift member 6, so that the lid C can be opened. This opening angle is set in the range of the opening angle of 20 to 60 degrees in which the rotational torque generated by the lid C around the first connecting member 3 and the hinge torque of the lid opening / closing device B are balanced. Even if you let go of it, it will not fall naturally. Therefore, the manuscript can be set on the manuscript mounting table d using both hands. The self-supporting holding angle with respect to the lid C is not limited to that of the embodiment. As shown in FIG. 9B, the elastic member 12 removes the pressure receiving member 5 from the closed state to a predetermined angle (60 degrees) through the cam slider 10. Since the lid C continues to be pressed against, the lid C is opened from the closed state to a predetermined angle (60 degrees) with its original weight reduced, and its rotation is restricted by the first rotation regulating means E to a predetermined angle. It is stopped at (60 degrees). In the process of opening the lid C from the closed state to a predetermined angle (60 degrees), the pressure receiving member 5 moves in a direction away from the cam slider 10 and the compression length of the elastic member 12 increases, so that the elastic member 12 becomes The force for lifting the lid C via the cam slider 10 is reduced.

However, as the opening angle becomes larger, the moment of the weight of the lid C centering on the first connecting member 3 becomes smaller, so that the force by which the elastic member 12 lifts the lid C via the cam slider 10 may be small. Taking these factors into consideration, the elastic member 12 is designed so that the state of a predetermined angle (60 degrees) can be maintained without supporting the lid C by hand. Further, in the bracket member 21 that receives a downward rotational urging force due to the elasticity of the elastic member 12 when the open lid C is closed, the engaging portions 21d, 21d ... Are the lower ends of the side plates 6b, 6b of the lift member 6. Since the portion side is locked, only the bracket member 21 does not rotate, but rotates together with the lift member 6 to smoothly close the lid body C. Further, when the opening angle of the lid C is around 20 degrees, the rotation torque due to its own weight exceeds the hinge torque, so that the lid C is naturally closed.

As shown in FIG. 11B, the elastic member 12 is subjected to the process of opening the lid C held at a predetermined angle (60 degrees) from a predetermined angle (60 degrees) to a further opened state (90 degrees). The pressure receiving member 5 is continuously pressed outward via the cam slider 10 to hold the support member 2 at a predetermined angle (60 degrees).

The bracket member 21 freely rotates around the second connecting member 4 with respect to the support member 2 held at a predetermined angle (60 degrees) by the first rotation regulating means E, and rotates the lid body C at a predetermined angle (60 degrees). Rotate from 60 degrees) to the open state (90 degrees).

As shown in FIG. 15, the conventionally known lid opening / closing device H is not provided with the bracket member 21, but is bent outward from both side plates 16b of the lift member 16 to form a mounting plate portion 16c, and a lid is formed on the mounting plate portion 16c. This is a comparative example in which the body C is fixed. In the lid opening / closing device H of the comparative example, since the support member 2 is rotated up to 90 degrees in the opened state, the lid C protrudes to the back surface side of the device main body.

On the other hand, in the lid opening / closing device B of the first embodiment shown in FIG. 14, since the support member 2 rotates only up to 60 degrees even in the opened state, the conventionally known lid opening / closing device H shown in FIG. 15 is used. Also, the lid body C is opened in a state where the lid body C is shifted toward the front side of the device main body D. Therefore, in the lid opening / closing device B of the first embodiment, the amount of protrusion of the lid C to the back side of the device main body D in the opened state is suppressed, and the lid opening / closing device B is secured between the device main body D and the wall portion K on the back side. The dead space DS to be used is smaller than that of the lid opening / closing device H in the comparative example.

Next, when closing the lid C that has been opened to the fully opened state of 90 degrees, first, the bracket member 21 is inverted and the lid C is closed. As shown in FIG. 11A, when the lid C is closed to 60 degrees, the engaging portions 21d, 21d ... Of the bracket member 21 engage with the side plates 6b, 6b of the lift member 6. The bracket member 21 rotates together with the lift member 6 and the support member 2, and the lid C is closed.

Since the present invention is configured as described above, the rear part does not protrude from the rear part of the device body even when the lid that can be opened and closed is fully opened to be attached to the rear part of the device body of various devices, so that the installation space can be omitted. It is suitably used as various devices using the lid opening / closing device of the device and the lid opening / closing device of the child.

A Multifunction device B, B', B2 Closure opening / closing device C Closure D Device body E 1st rotation regulating means F 2nd rotation regulating means 1 Mounting member 1b Both side plates 1c Rear plate 2 Support member 2b Both side plates 2i Groove end 3 1 Connecting member 4 Second connecting member 4a Shaft part 4c, 4e Circumferential groove 4i Flat part 4j Friction surface 4k Round hole 4d D cut 5 Pressure receiving member 6 Lift member 6b Both side plates 6k Protrusion 8 Stopper plate 8d Protrusion 9 Actuating member 10 Cam slider 11 Spring receiving member 12 Elastic member 21 Bracket member 21a Mounting base 21b Both side plates 21c Connecting side plate 21d Engaging part 21f Protrusion part

Claims (9)

A mounting member to be attached to the main body of the device, a support member rotatably attached to both side plates of the mounting member via the first connecting member, and a second connecting member to both side plates on the free end side of the support member. A lift member rotatably mounted in a direction opposite to the support member, a cam slider provided slidably in the support member in contact with a pressure receiving member provided between both side plates of the mounting member, and the lift member. A spring receiving member slidably provided in the support member in contact with the actuating member provided on the free end side of the support member, an elastic member elastically provided between the cam slider and the spring receiving member, and the above. This bracket consists of a bracket member for attaching a document crimping plate rotatably attached to both side plates of the lift member and both side plates of the support member via the second connecting member in a direction opposite to the lift member. The member operates together with the lift member within a predetermined rotation angle range of the lift member, but has a rotation control means configured so that the lift member can independently rotate when the lift member exceeds a predetermined rotation angle. A lid opening / closing device characterized by. The rotation control means of the bracket member is the first rotation regulating means provided between the support member and the mounting member, the second rotation regulating means provided between the lift member and the bracket member, and the operation thereof. The lid opening / closing device according to claim 1, further comprising the elastic member acting on the member. The second aspect of the present invention, wherein the first rotation regulating means is composed of a stopper portion provided on the rear side of the mounting member so as to abut on the rear side at a predetermined rotation angle of the support member. Lid opening and closing device. The lid according to claim 2, wherein the second rotation regulating means is composed of an engaging portion provided on both side plates of the bracket member so as to engage with both side plates of the lift member from one direction. Body opening and closing device. 2. The lid opening / closing device described. The bracket member has a connecting side plate that connects the opposing side plates on the second connecting member side, and the mounting base of the bracket member has a shape that is bent outward from the facing side plates. The lid opening / closing device according to claim 1. The bracket member is provided on the outside of both side plates of the lift member, and the engaging portion is formed by bending a part of both side plates of the bracket member inward so as to engage with both side plates of the lift member. The lid opening / closing device according to claim 4, wherein the lid opening / closing device is made. The lid opening / closing device according to claim 1, wherein a friction torque generating means is provided between the bracket member and the lift member. Various devices, characterized in that the lid opening / closing device according to any one of claims 1 to 8 is used.

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