JP7045685B2 - Hinge and various devices using this hinge - Google Patents

Description

In the present invention, a lid such as a document crimping plate can be opened and closed and connected to a device body such as office equipment including a copier, a multifunction device, a scanner, a facsimile, a printing machine, or various machine devices including furniture. With respect to suitable hinges to be used in.

Office equipment such as copiers are provided with a contact glass for reading documents on the upper surface of the main body of the device, and a document crimping plate (cover) is provided via a hinge so that the contact glass can be opened and closed in the vertical direction. Body) is provided.

Conventionally, as this type of hinge, the one described in Patent Document 1 below is known. The hinge described in Patent Document 1 is a hinge that connects the original crimping plate to the device body so as to be openable and closable, and is a mounting member having a storage chamber with an open upper portion to be mounted on the side of the device body. A support member attached to the side of the document crimping plate and a hinge shaft for rotatably connecting the support member to the attachment member are provided, and the support member is on the side facing the attachment member. A slide member having a pressing cam portion and having a first pressure receiving cam portion in contact with the pressing cam portion, and an urging member for urging the slide member toward the support member side in the accommodating chamber of the mounting member. The cam surface of the pressing cam portion is provided through the damper housed in the urging member and the insertion hole provided in the pressing cam portion of the support member provided in contact with the upper end portion of the piston rod of the damper. It has a sliding member exposed to the surface.

Japanese Unexamined Patent Publication No. 2015-183840

However, since the mounting member and the supporting member of the hinge described in Patent Document 1 are both synthetic resin molded products, the mounting member is particularly suitable for improving the strength when a compression coil spring having strong elasticity is used. There is a problem that the hinge needs to be thickened by that amount, and the sliding member is a separate member from the piston rod, which increases the number of parts in the damper part and increases the cost. There was a problem that it would end up. Further, since the upper end surface of the sliding member has a shape different from the shape of the first pressure receiving cam portion of the sliding member, there is a problem that a smooth sliding operation is hindered when abutting with the pressing cam portion on the support member side. There was also.

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to have a smaller and simpler structure than before, the mounting member can maintain the required strength, and the damper has a smooth cushioning effect. It is an object of the present invention to provide a hinge capable of exerting a cushioning effect by an urging member and various devices using this hinge.

In order to achieve the above object, the hinge of the present invention is a hinge that connects the document crimping plate to the device body so as to be openable and closable, and has a mounting member attached to the device body side and the document crimping plate. The support member includes a support member mounted on the side of the mounting member and a hinge shaft that rotatably supports the support member with respect to the mounting member, and the support member has a pressing cam portion facing the side of the mounting member. The mounting member has a storage chamber opened on the support member side, and the storage chamber has a slide member having a first pressure receiving cam portion in contact with the pressing cam portion, and the slide member is the support member. The cam surface of the first pressure receiving cam portion corresponds to the urging member urging to the side, the damper main body fixedly provided in the accommodation chamber, and the tip portion extending integrally from the inside of the damper main body toward the support member side. A damper composed of a piston rod having a second pressure-receiving cam portion forming the cam surface is accommodated, and a through hole extending in the slide direction of the slide member is formed in a part of the first pressure-receiving cam portion. In the rotation range of 18 degrees to 0 degrees in which the support member is close to the mounting member, the second pressure receiving cam portion of the piston rod comes into contact with the pressing cam portion through the through hole, and the above. The second pressure-receiving cam portion is characterized by being formed with an inclined second pressure-receiving cam portion that maximizes the frictional force between the document crimping plate and the pressing cam portion when the document crimping plate is fully closed. And.

At that time, the present invention is characterized in that a plurality of urging members are juxtaposed in the spring accommodating chamber of the slide member, and the damper is provided in one of the urging members.

The present invention is further characterized in that the urging member is a coil spring arranged so as to surround the damper.

Further, the present invention is a variety of devices, characterized in that the hinges described above are used.

The present invention is a variety of devices characterized by using a hinge using a damper and a hinge not using a damper.

The hinge of the present invention has a metal internal housing that fits into the accommodation chamber of the mounting member, so that the strength of the mounting member made of synthetic resin can be maintained without making the wall thickness too thick, and the damper configuration is simplified. In addition, the cost can be reduced, and the sliding operation when the pressing cam portion of the support member comes into contact with the second pressure receiving cam portion formed at the tip of the piston rod of the damper can be smoothed. It is possible to provide a hinge capable of cushioning a sudden drop when the crimp plate is closed.

It is a perspective view which shows the copying machine as an example of the office equipment provided with the hinge device which concerns on one Embodiment of this invention. (A) is a perspective view of the hinge device, and (B) is a perspective view of the hinge device shown in (A) as viewed from another angle. (A) is a front view when the angle of the hinge device is 60 degrees, (B) is a sectional view taken along line AA of (A), and (C) is a sectional view taken along line BB of (A). (A) is a front view when the angle of the hinge device is 18 degrees, and (B) is a sectional view taken along line AA of (A). (A) is a front view when the angle of the hinge device is 0 degrees, (B) is a sectional view taken along line AA of (A), and (C) is a sectional view taken along line BB of (A). (A) is a perspective view of the support member of the hinge device, and (B) is a perspective view of the support member shown in (A) as viewed from another angle. (A) is a perspective view of the mounting member of the hinge device, and (B) is a perspective view of the mounting member shown in (A) as viewed from another angle. (A) is a perspective view of the internal housing of the hinge device, and (B) is a perspective view of the internal housing shown in (A) as viewed from another angle. (A) is a perspective view of the hinge shaft of the hinge device, and (B) is a perspective view of the hinge shaft shown in (A) as viewed from another angle. (A) is a perspective view of the slide member of the hinge device, and (B) is a perspective view of the slide member shown in (A) as viewed from another angle. (A) is a front view of the slide member, (B) is a plan view, (C) is a left side view, (D) is a bottom view, and (E) is a sectional view taken along line AA of (A). (F) is a sectional view taken along line BB of (A). It is a perspective view of the urging member of a hinge device. It is a perspective view of the damper of a hinge device. (A) is a perspective view of the first conductive plate of the hinge device, and (B) is a perspective view of the first conductive plate shown in (A) as viewed from another angle. It is a perspective view of the 2nd conductive plate of a hinge device.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In this embodiment, a case where the hinge of the present invention is applied to a hinge that connects the original crimping plate to the main body of the copying machine so as to be openable and closable will be described as an example.

As shown in FIG. 1, the copying machine 1 includes a device main body 2, a document crimping plate 3, and the like, and the document crimping plate 3 is connected to the device body 2 by a pair of left and right hinges 10L and 10R so as to be openable and closable. Has been done. A contact glass 4 is provided on the upper surface of the device main body 2. The document crimping plate 3 is equipped with an automatic document feeder 5. Since the document automatic feeding device 5 is provided on the left side portion of the document crimping plate 3, a relatively large load is applied to the hinge 10L on the left side of the hinge 10R on the right side. Therefore, the hinge 10L on the left side is larger than the hinge 10R on the right side. Since the hinge 10R on the right side does not have a damper and only a single urging member is used in the embodiment, only the configuration of the hinge 10L on the left side will be described below. Of course, it is possible to use the damper according to this embodiment for the hinge 10R on the right side.

As shown in FIGS. 2 (A), 2 (B) to 5 (A), (B), and (C), the hinge 10L is a mounting member 20 provided on the device main body 2 of the copying machine 1 shown in FIG. A support member 30 attached to the document crimping plate 3 and a hinge shaft 40 for rotatably supporting the support member 30 with respect to the attachment member 20 are provided. The internal housing 50, the slide member 60, the urging members 70 and 70, and the damper 80 are housed in the mounting member 20.

As shown in FIGS. 3 (A), (B), (C) to 6 (A), (B), the support member 30 includes a main body portion 31 and an arm portion 32L projecting from the main body portion 31 symmetrically to the left and right. , 32R and. The support member 30 is a resin molded member made of a hard resin. As shown in FIG. 5B, a pressing cam portion 33 facing the mounting member 20 is formed in the central portion of the main body portion 31 in the front-rear direction.

As shown in FIGS. 6A and 6B, a shaft hole 34 is formed in the vicinity of the rear end of the main body 31 of the support member 30. The shaft hole 34 penetrates the main body 31 to the left and right. Further, the main body 31 is formed with a mounting groove 35 for mounting the first conductive plate 90 shown in FIG. 14 and a plurality of (four in this example) mounting holes 36. The mounting groove 35 is formed from the right side portion of the front surface 31a of the main body portion 31 to the vicinity of the left end of the lower surface 32Ra of the right arm portion 32R via the lower surface 31c. The mounting hole 36 penetrates the main body 31 up and down.

As shown in FIGS. 6A and 6B, screws for fixing the support member 30 to the document crimping plate 3 are located near the left end of the left arm portion 32L and near the right end of the right arm portion 32R (not shown). A screw insertion hole 37 through which (omitted) is inserted is formed. The screw insertion holes 37 are provided at two front and rear positions of both arm portions 32L and 32R. Of the front and rear screw insertion holes 37 provided in the right arm portion 32R , the front screw insertion hole 37 is open in the mounting groove 35. Further, the lower surfaces 32La and 32Ra of both arm portions 32L and 32R are provided with a cylindrical protrusion 38 between the screw insertion holes 37. The support member 30 can be manufactured by pressing a metal plate such as SUS without making it a resin molded product. The present invention can be carried out in this case as well.

As shown in FIGS. 5 (B) and 6 (A), an overhanging portion 39 projecting rearward from the pressing cam portion 33 is provided on the upper end trailing edge of the main body portion 31 of the support member 30. .. When the document crimping plate 3 rotates to the maximum opening (90 degrees) with respect to the device main body 2, the overhanging portion 39 abuts on the upper end edge portion 23a of the rear plate portion 23 of the mounting member 20 to crimp the document. The rotation of the plate 3 is restricted.

As shown in FIGS. 3 (B), 4 (B), 5 (B) and 7 (A), (B), the mounting member 20 has a storage chamber 21 opened on the support member 30 side. The mounting member 20 is a resin molded product made of a hard resin. As shown in FIGS. 7A and 7B, the mounting member 20 has a front plate portion 22, a rear plate portion 23, a bottom plate portion 24, a left side plate portion 25L, and a right side plate portion 25R, and is surrounded by these. The accommodation chamber 21 is formed. A flange portion 26 is provided on the outer periphery of the upper portion of the mounting member 20. The mounting member 20 is mounted on the device body 2 by fitting a portion below the flange portion 26 into a mounting hole (not shown) of the device body 2. A mounting hole 26a for mounting the second conductive plate 100 shown in FIG. 15 is formed so as to penetrate vertically in the vicinity of the front end of the portion formed on the right side plate portion 25R of the flange portion 26. The mounting member 20 can be manufactured by pressing a metal plate such as SUS, or can be a forged product, without making it a resin molded product. The present invention can be carried out for both of these.

As shown in FIGS. 7A and 7B, a pair of left and right connecting portions 27 projecting upward are formed at the rear portions of the left side plate portion 25L and the right side plate portion 25R of the mounting member 20. Shaft holes 28 are formed in the vicinity of the upper ends of both connecting portions 27, respectively. Both shaft holes 28 coaxially penetrate both connecting portions 27. Inside the mounting member 20, the internal housing 50 shown in FIGS. 8A and 8B is fitted and provided. The inner housing 50 is, for example, a metal member formed by bending a stainless steel plate.

As shown in FIGS. 8A and 8B, the internal housing 50 includes a bottom plate portion 51, left and right side plate portions 52L and 52R bent from both left and right ends of the bottom plate portion 51 and standing upward, and both side plates. An edge plate portion 53 extending inward in the left-right direction from the front and rear edges of the portions 52L and 52R, respectively, and a pair of left and right connecting portions 54 projecting upward from the rear portions of the side plate portions 52L and 52R are formed. A through hole 56 for attaching the damper 80 is formed in the bottom plate portion 51. Shaft holes 57 are formed in the vicinity of the upper ends of both connecting portions 54, respectively. Both shaft holes 57 coaxially penetrate both connecting portions 54.

As shown in FIGS. 3 (B), 4 (B) and 5 (B), the internal housing 50 is provided in the storage chamber 21 by being fitted to the inner surface of the mounting member 20. The shaft hole 28 of the mounting member 20 and the shaft hole 57 of the internal housing 50 communicate coaxially with each other. It should be noted that the present invention is established without this internal housing 50. However, if the internal housing 50 is provided, the strength of the mounting member 20 can be increased when the mounting member 20 is made of a resin molded product.

As shown in FIG. 9, the hinge shaft 40 has a cylindrical shaft portion 41 and a head portion 42 formed at one end (right end portion) of the shaft portion 41. The hinge shaft 40 is a metal member made of, for example, stainless steel. The other end (left end) 41b of the shaft 41 is hollow, and after the shaft 41 is inserted into the shaft holes 28 and 34 of the mounting member 20 and the support member 30, the other end 41b is crimped (caulked). ) Being.

As shown in FIGS. 3 (B), 4 (B) and 5 (B), the slide member 60 is housed in the storage chamber 21 of the mounting member 20 while being surrounded by the internal housing 50. ing. The slide member 60 is guided by the internal housing 50 and slides up and down in the accommodation chamber 21. The rear portion of the upper end portion of the slide member 60 has a first pressure receiving cam portion 61 that comes into contact with the pressing cam portion 33 of the support member 30.

As shown in FIGS. 10 (A), 11 (B), (D) and (E), a through hole extending in the slide direction (vertical direction) of the slide member 60 is provided in a part of the first pressure receiving cam portion 61. 62 is formed. As shown in FIGS. 10 (B), 11 (D), (E) and (F), a pair of left and right cylindrical spring accommodating chambers 63L and 63R opened downward are formed inside the slide member 60. Has been done. The through hole 62 penetrates the first pressure receiving cam portion 61 from the spring accommodating chamber 63L on the left side and opens to the surface of the first pressure receiving cam portion 61. A cylindrical sleeve 64 communicating with the through hole 62 is formed in the central portion of the ceiling of the spring accommodating chamber 63L on the left side.

The two spring accommodating chambers 63L and 63R shown in FIGS. 10 and 11 accommodate the urging members 70 and 70 shown in FIG. 12, respectively. The urging members 70 and 70 are coil springs made of steel. One of the left and right spring accommodating chambers 63L and 63R (on the left side in this example) accommodates the damper 80 shown in FIG. 13 together with the urging member 70, and the other urging member 70 accommodates the damper 80. , As shown in FIGS. 3 (C) and 5 (C), the damper 80 is not housed. Of course, the dampers 80 and 80 may be accommodated in both the urging members 70 and 70, respectively.

In the embodiment, one of the urging members 70 is arranged in the spring accommodating chamber 63L so as to surround the damper 80 as shown in FIGS. 3 (B), 4 (B) and 5 (B). The damper 80 has a damper main body 81 fixedly provided in the accommodation chamber 21 of the mounting member 20, and a piston rod 82 integrally extending from the inside of the damper main body 81 to the support member 30 side, that is, upward. A flange portion 83 is formed in the vicinity of the lower end of the damper main body 81. The damper 80 has an internal housing 50 in a state where the lower end portion of the damper main body 81 is fitted into the through hole 56 of the internal housing 50 and the flange portion 83 is locked to the upper surface 51a of the bottom plate portion 51 of the internal housing 50. It is fixed to. In the embodiment, the damper 80 is installed on one of the urging members 70 and 70 composed of two coil springs, but may be installed on the other.

The upper ends 70a and 70a of both urging members 70 and 70 are in pressure contact with the ceiling surface 63a of the spring accommodating chambers 63L and 63R of the slide member 60, respectively. The lower end 70b of the urging member 70 provided in the spring accommodating chamber 63L on the left side is in pressure contact with the flange portion 83 of the damper main body 81. The lower end 70b of the urging member 70 provided in the spring accommodating chamber 63R on the right side is in pressure contact with the upper surface 51a of the bottom plate portion 51 of the inner housing 50. The slide member 60 is elastically supported so as to be movable up and down by both urging members 70. In the slide member 60, the contact state between the first pressure receiving cam portion 61 of the mounting member 20 and the pressing cam portion 33 of the support member 30 changes with the rotation of the support member 30 with respect to the mounting member 20. It is moved up and down while being urged upward by both urging members 70. In this embodiment, the pressing cam portion 33 and the first pressure receiving cam portion 61 are provided with the rotation of the support member 30 with respect to the mounting member 20 when the angle of the document crimping plate 3 with respect to the device main body 2 is in the range of 0 to 60 degrees. It is configured so that the contact state with each other changes. Here, the "angle" means the angle formed by the upper surface of the contact glass 4 of the main body 2 and the lower surface of the original crimping plate 3.

The upper side of the piston rod 82 is inserted into the through hole 62 of the slide member 60, and the support member 30 is inserted into the tip portion 82a integrally extending from the piston rod 82 in a predetermined rotation region close to the mounting member 20. The provided second pressure receiving cam portion 82s comes into contact with the pressing cam portion 33 through the through hole 62. In this embodiment, the tip end portion 82a of the piston rod 82 is configured to abut on the pressing cam portion 33 when the angle of the document crimping plate 3 with respect to the device main body 2 is in the range of 0 to 18 degrees.

The second pressure receiving cam portion 82s provided at the tip end portion 82a of the piston rod 82 has a curved inclined shape that matches the shape of the upper surface of the first pressure receiving cam portion 61, and the opening degree of the document crimping plate 3 with respect to the device main body 2 is large. Smoothly slides into the pressing cam portion 33 from the time when it reaches 18 degrees to 0 degrees, that is, when it is in the fully closed state, and when it is in the fully closed state, the frictional force with the pressing cam portion 33 is maximized. Is formed in. It should be noted that this curved inclined shape may be a simple inclined shape that rises from the front to the rear.

As shown in FIGS. 2A, 2B and 14, the first conductive plate 90 has an upper plate portion 91 and an upper plate portion provided so as to cover the upper surface 31b of the main body portion 31 of the support member 30. The front plate portion 92 that bends downward and extends from the right end of the front edge of 91, the lower plate portion 93 that bends backward from the lower end of the front plate portion 92 and extends to the right, and the rear end of the right edge of the upper plate portion 91. It has a right plate portion 94 that bends downward and extends from. The upper plate portion 91 and the lower plate portion 93 are portions that are electrically connected to the conductor component of the support member 30. The upper plate portion 91 is provided with a plurality of (four in this example) through holes 95 communicating with the mounting holes 36 of the main body portion 31, and the edges of the through holes 95 are fixed to the mounting holes 36. ing. The front plate portion 92 and the lower plate portion 93 fit into the mounting groove 35 of the main body portion 31. Near the right end of the lower plate portion 93, a through hole 96 that communicates with the screw insertion hole 37 on the front side of the right arm portion 32R is provided, and the original crimp plate 3 is inserted through the screw insertion hole 37 and the through hole 96. The lower plate portion 93 is fixed to the right arm portion 32R by a screw (not shown) screwed to the right side. The right plate portion 94 is provided with a through hole 97 that communicates with the shaft hole 28, and the inner peripheral edge of the through hole 97 comes into contact with the outer peripheral surface of the shaft portion 41 of the hinge shaft 40, whereby the first conductive plate 90 and the through hole 97 are provided. The hinge shaft 40 and the hinge shaft 40 are electrically connected to each other.

As shown in FIGS. 2A and 15, the second conductive plate 100 is attached to the right side plate portion 25R of the attachment member 20. The second conductive plate 100 has an upper half portion 101 provided above the flange portion 26 of the mounting member 20, a lower half portion 102 provided below the flange portion 26, and an upper half portion 101 and a lower half portion 102. It has a stepped portion 103 that connects the above. The lower half 102 is a portion electrically connected to the conductor component of the device main body 2. The upper half portion 101 has a horizontal portion 101a extending back and forth along the flange portion 26, and a vertical portion 101b extending upward from the rear end portion of the horizontal portion 101a. A through hole 104 into which the head portion 42 of the hinge shaft 40 is fitted is provided at the upper end portion of the vertical portion 101b, and the upper end portion of the vertical portion 101b comes into contact with the head portion 42 of the hinge shaft 40. 2 The conductive plate 100 and the hinge shaft 40 are electrically conductive with each other.

In the hinge 10L configured as described above, the device main body 2 and the document crimping plate 3 are made conductive via the first conductive plate 90, the hinge shaft 40, and the second conductive plate 100, and the device body 2 and the document crimping plate are made conductive. An electrical ground connection can be secured with 3.

Next, the operation of the hinge 10L during the opening / closing operation of the document crimping plate 3 will be described.
The hinge 10L connects the document crimping plate 3 to the device main body 2 so as to be openable and closable. The range of the angle of the document crimping plate 3 with respect to the device main body 2 is the angle in the completely closed state (fully closed state), that is, 0 degrees to the maximum angle, that is, 90 degrees.

As shown in FIG. 3B, when the angle is 60 degrees, the pressing cam portion 33 of the support member 30 and the first pressure receiving cam portion 61 of the slide member 60 are in contact with each other. At this time, the document crimping plate 3 is supported by the urging forces of both urging members 70 and maintains an independent posture. When the document crimping plate 3 is closed from this state, the slide member 60 is pushed down against the urging force of both urging members 70 as the pressing cam portion 33 moves with respect to the first pressure receiving cam portion 61. .. As a result, the movement of the document crimping plate 3 toward the closing side is buffered.

When the document crimping plate 3 is further closed, as shown in FIG. 4B, when the angle becomes 18 degrees, the second pressure receiving cam portion 82s provided on the tip portion 82a of the piston rod 82 of the damper 80 becomes available. It comes into contact with the pressing cam portion 33 through the through hole 62 of the first pressure receiving cam portion 61. When the document crimping plate 3 is further closed from this state, the piston rod 82 is damped with the movement of the pressing cam portion 33 with respect to the tapered second pressure receiving cam portion 82s formed on the tip portion 82a of the piston rod 82. It is pushed down against the braking force of the main body 81. At this time, the urging force of both urging members 70 and the braking force of the damper 80 act on the document crimping plate 3, so that the sudden rotation of the document crimping plate 3 immediately before the fully closed state is buffered.

Then, as shown in FIG. 5B, when the angle is 0 degrees, that is, the fully closed state, both the slide member 60 and the piston rod 82 are in the most depressed state. At this time, both the frictional force between the piston rod 82 and the pressing cam portion 33 and the urging force of both urging members 70 are maximized, and the sudden rotation of the document crimping plate 3 when fully closed is ensured. It is buffered. The fully closed document crimping plate 3 maintains its state against the urging force of both urging members 70 due to its own weight and the frictional force between the piston rod 82 and the pressing cam portion 33.

On the other hand, when the original crimping plate 3 is opened from the fully closed state, the movement of the original crimping plate 3 is urged by the both urging members 70 and the damper 80 while the angle is from 0 degrees to 18 degrees. Further, while the angle is between 18 degrees and 60 degrees, the movement of the document crimping plate 3 is urged by both urging members 70.

As described above, in the hinge 10L of the present embodiment, the first pressure receiving cam portion 61 of the slide member 60 urged by both urging members 70 presses against the pressing cam portion 33 of the support member 30 to crimp the original. By cushioning the movement toward the closing side of the plate 3 and encouraging the movement toward the opening side of the document crimping plate 3, the support member 30 has a predetermined rotation range (angle of 18 degrees to 0 degrees) close to the mounting member 20. In the range), the tip end portion 82a of the piston rod 82 of the damper 80 abuts on the pressing cam portion 33 through the through hole 62 of the first pressure receiving cam portion 61, thereby causing a sudden rotation of the document crimping plate 3 when the document crimping plate 3 is closed. Since the cushioning is performed by the 80, the cushioning effect of the damper 80 and the cushioning effect of both urging members 70 can be effectively exhibited with a smaller and simpler configuration than the conventional one.

Further, in the present embodiment, immediately before the document crimping plate 3 is fully closed (the angle is 18 degrees) on the second pressure receiving cam portion 82s having the curved inclined surface formed on the tip portion 82a of the piston rod 82. When), the pressing cam portion 33 comes into contact with the pressing cam portion 33 smoothly until it is fully closed, and when it is fully closed, the frictional force between the pressing cam portion 33 and the pressing cam portion 33 is maximized. Due to the formation, a constant braking force by the damper 80 is applied to the pressing cam portion 33 from immediately before the fully closed state to the fully closed state to buffer the sudden rotation of the document crimping plate 3 and at the same time. The lifting of the document crimping plate 3 from the fully closed state can be prevented by the frictional force between the pressing cam portion 33 and the second pressure receiving cam portion 82s.

Further, in the present embodiment, by using a coil spring arranged so as to surround the damper 80 as the urging member 70, the storage space of the urging member 70 and the damper 80 can be reduced, so that the mounting for accommodating these can be reduced. The member 20 and the hinge 10L can be miniaturized.

It should be noted that the present invention is not limited to the above embodiment, but includes various modified examples within the scope of the claims. For example, in the above embodiment, an example in which the hinge of the present invention is applied to a hinge for connecting a device main body of a copying machine and a document crimping plate has been described, but the present invention is not limited to the copying machine, but also a multifunction device, a scanner, a facsimile, and the like. Of course, it can also be applied to the hinges of various devices.

Further, in the above embodiment, an example in which the hinge of the present invention is applied to a hinge of a device having a neutral angle of 60 degrees of the original crimping plate has been described, but the present invention is also applied to a device having a neutral angle other than 60 degrees. Of course it is possible.

Further, in the above embodiment, an example in which the device main body and the document crimping plate are connected by two hinges having different sizes is shown, but the device body and the document crimping plate are connected by two hinges or 3 having the same size. Of course, they may be connected by one or more hinges.

1 Copier 2 Equipment body 3 Original crimping plate 4 Contact glass 5 Original automatic feeder 10 Hinge 10L Hinge 10R Hinge 20 Mounting member 21 Storage chamber 28 Shaft hole 30 Support member 34 Shaft hole 40 Hinge shaft 50 Internal housing 57 Shaft hole 60 Slide member 61 1st pressure receiving cam part 70 Bounce member 80 Damper 81 Damper body 82 Piston rod 90 1st conductive plate 100 2nd conductive plate

Claims (5)

A hinge that connects the original crimping plate to the device body so that it can be opened and closed.
The mounting member mounted on the side of the device body and
A support member attached to the side of the original crimping plate and
A hinge shaft that rotatably supports the support member with respect to the mounting member is provided.
The support member has a pressing cam portion facing the side of the mounting member.
The mounting member has a storage chamber open to the support member side.
In the containment room
A slide member having a first pressure receiving cam portion in contact with the pressing cam portion, and
An urging member that urges the slide member to the support member side,
A second pressure receiving cam having a cam surface corresponding to the cam surface of the first pressure receiving cam portion formed at a tip portion integrally extending toward the support member side from the damper main body fixedly provided in the accommodation chamber and the damper main body. A damper consisting of a piston rod having a part is housed in it.
A through hole extending in the slide direction of the slide member is formed in a part of the first pressure receiving cam portion.
In the rotation range of 18 degrees to 0 degrees in which the support member is close to the mounting member, the second pressure receiving cam portion of the piston rod comes into contact with the pressing cam portion through the through hole, and the second pressure receiving cam portion is contacted with the pressing cam portion. A hinge characterized in that a second pressure receiving cam portion having an inclined shape that maximizes the frictional force with the pressing cam portion is formed in the portion when the document crimping plate is fully closed. .. The hinge according to claim 1, wherein a plurality of urging members are juxtaposed in the spring accommodating chamber of the slide member, and the damper is provided in one of the urging members. The hinge according to any one of claims 1 to 2 , wherein the urging member is a coil spring arranged so as to surround the damper. Various devices, characterized in that the hinge according to any one of claims 1 to 3 is used. Various devices comprising the hinge according to any one of claims 1 to 3 and a hinge that does not use a damper.

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