TWI696879B - Lid opening-closing device and machines - Google Patents

Abstract

The present invention provides a lid opening-closing device which can open the lid in an open state without providing a large dead angle between a device body and a wall. The lid opening-closing device has a mounting member, a support member, a lifting member, an operation member and an elastic member. The mounting member is mounted on the device body side. The support member is rotatably pivotally connected to the mounting member through a first connecting member. The lifting member is pivotally connected to the supporting member through the second connecting member so that the lifting member is rotatable in a direction opposite to the support member. The operation member is provided at the lifting member. The position rotates with the lifting member rotating about the second connecting member. The elastic member is elastically disposed between the operation member and the supporting member, so that the lifting member is pushed in a direction overlapping with the supporting member while pushing the supporting member toward the opening direction of the lid.

Description

Cover opening and closing device and business machine

The present invention relates to a cover opening and closing device which is preferably used for opening and closing manuscript covers of furniture such as photocopying machines or printing machines, etc., and the use of the cover opening and closing device machine.

Traditionally, especially as a lid opening and closing device for a manuscript pressing plate opening and closing device used in business machines such as photocopiers, for example, the lid opening and closing device described in Japanese Patent Laid-Open No. 2013-97363 is It is known that it includes the following components: a mounting member having a mounting base mounted on the side of the device body and two side plates erected from the mounting base; a supporting member having a back plate and two side plates folded from the back plate, and The two side plates are rotatably pivoted to the two side plates of the mounting member through the first connecting member; and a lifting member, a mounting base having a back plate and two side plates folded from the back plate and an original pressing plate folded from the two side plates , The two side plates are pivotally connected to the free end sides of the two side plates of the support member through the second connecting member, so that it can rotate in a different direction from the support member; the actuating member is provided in the second The connecting member rotates and rotates at the center; a pressure member is provided between the two side plates of the mounting member; an elastic member is elastically provided between the pressure member and the actuating member to facilitate Push the lifting member in the overlapping direction, and push this supporting member in the opening direction of the original platen. In addition, the business machine using this lid opening and closing device is known. This type is now widely popular, and almost all transaction machines such as photocopiers are now used.

In the conventional lid opening and closing device and business machine constructed as described above, since the original pressure plate C installed on the lid opening and closing device B is almost all equipped with an automatic document feeding device, the original pressure plate C itself has a relatively high height (Thickness), this is because the original manuscript plate C has such an original document automatic feeding mechanism built in. As a result, when the photocopier A is installed on the wall K side of the installation position (almost all such installation methods are used), the following inconveniences will occur, so countermeasures need to be sought.

In other words, when a thick manuscript (not shown) (especially a thick manuscript such as a book In the case of) installed on the original table d of the apparatus main body D, or when the contact glass (not shown) of the original table d is removed to repair and repair the inside of the photocopier A, the original pressure plate C needs to be opened to Fully open (90 degrees +). As a result, as shown in FIG. 15, since the original pressure plate C inevitably protrudes to the rear of the apparatus main body D, a problem of a so-called dead angle DS occurs between the wall K of the rear.

Therefore, the purpose of the present invention is to provide a lid opening and closing device and a business machine using the lid opening and closing device, even when the lid (original pressing plate) is fully opened, the lid can be prevented from protruding to the body of the device The rear part can further omit the dead space generated between the office equipment provided on the wall side and the wall side.

In addition, in the description of the present invention and the scope of the patent application, since the field of using the opening and closing device is not limited to business machines such as photocopiers, the original pressure plate is called a cover, and the cover can be opened and closed. The opening and closing device on the business machine is used as a cover opening and closing device.

In order to achieve the above object, the lid opening and closing device according to the present invention includes: a mounting member mounted on the side of the device body; and a support member pivotably connected to both side plates of the mounting member through the first connecting member; A lifting member, pivotally connected to the two side plates on the free end side of the supporting member through the second connecting member, so that it can rotate in the opposite direction to the supporting member; a cam slider, and the two side plates provided on the mounting member The pressure member in between is in contact with and slidably disposed in the support member; a spring seat member is in contact with the actuating member and is slidably disposed in the support member, the actuating member is disposed in the free of the lifting member relative to the support member The end side; an elastic member, which is elastically disposed between the cam slider and the spring seat member; and a bracket member, which is pivotally connected to the side plates of the lifting member and the side plates of the supporting member through the second connecting member, the cover Installed on the bracket member so that it can rotate in the opposite direction to the lifting member; wherein the bracket member has a rotation control device, which is configured to allow the bracket member to rise and fall within a predetermined rotation angle range of the lifting member The members act together, and the bracket member can rotate independently when the predetermined rotation angle of the lifting member is exceeded.

According to the present invention, the rotation control device of the bracket member is composed of the following members: A first rotation restricting device is provided between the supporting member and the mounting member; a second rotation restricting device is provided between the lifting member and the bracket member; and an elastic member acts on the actuating member.

Furthermore, according to the present invention, the first rotation restricting device is constituted by a stopper plate, which is provided on the rear side of the mounting member for abutting the rear side of the support member at a predetermined rotation angle of the support member.

Furthermore, according to the present invention, the second rotation restricting device is constituted by an engaging portion, which is provided on both side plates of the bracket member, and is used to engage with both side plates of the lifting member from one direction.

Furthermore, according to the present invention, the second rotation restricting device is constituted by a protruding portion, which is provided on the elevating member and presses against the protruding portion provided on the bracket member to restrict the rotation of the bracket member.

According to the present invention, the bracket member has a connection side plate that connects the opposite side plates of the bracket member on the second connection member side, and the mounting base of the bracket member has a shape bent outward from the opposite side plates.

According to the present invention, the bracket member has an engaging portion that transmits the rotation of the bracket member centered on the second connecting member in the closing and closing direction to the lifting member, while not transferring the bracket member in the opening direction The rotation is transmitted to the lifting member.

According to the present invention, the bracket member is provided on the outer sides of the two side plates of the lifting member, and the engaging portion is formed to bend a part of the two side plates of the bracket member inward to be engaged with the two side plates of the lifting member.

According to the present invention, a friction torque generating device is provided, which generates a frictional force as the bracket member rotates relative to the lifting member.

According to the present invention, the business machine uses the lid opening and closing device as in the above inventions.

According to the present invention, with the aid of the elastic member, the cover body (original pressing plate) is tilted up from the closed state, and the bracket member is rotated relative to the supporting member to open the cover (original pressing plate) to the open state Angle. Therefore, in a state where the center of gravity of the cover (original pressure plate) is located further forward than when the support member is simply rotated to the angle of the open state, the cover (original pressure plate) can be opened to the angle of the open state. Therefore, it is possible to provide a lid opening and closing device and a business machine using the lid opening and closing device, without setting a large dead angle between the device body and the wall on the back side, In addition, interference between the main body of the device and the wall on the back side of the device can be avoided, and the cover (original pressing plate) can be opened to the angle of the open state.

According to the present invention, the bracket member is pivotally connected to the support member and the elevating member using the existing second connecting member. Therefore, compared with the case where another new second connecting member is used, the total number of parts is reduced, and the high-strength lid opening and closing device can be configured to be compact and lightweight.

According to the present invention, the angle of the open state of the original pressure plate is accurately set by the second rotation restricting device. In addition, since the center of gravity of the original pressure plate is moved to a higher position with the assistance of the elastic member, the posture of the original pressure plate is rotated to the angle of the open state by the bracket member, so even without the assistance of the elastic member In this state, it is also possible to rotate the weighted original platen with light operating force.

According to the present invention, a highly reliable first rotation restricting device can be realized with a simple structure. In addition, according to the present invention, a highly reliable second rotation restricting device can be realized with a simple structure. According to the present invention, using a metal plate, a bracket member that is both accurate and highly reliable can be manufactured at low cost without welding or assembly work.

According to the present invention, with the assistance of the elastic member, the rotation of the original pressing plate can be driven and the original pressing plate and the supporting member can be moved integrally. And, as will be described later, when a thick original is pressed by the original pressure plate, the engaging portion is engaged with the lifting member, and the bracket member and the lifting member rotate integrally against the thrust of the elastic member relative to the supporting member, that is, The original cover can be pressed horizontally against heavy originals.

According to the present invention, the bracket member formed of the metal plate can be made small and lightweight and easy to form the engaging portion.

According to the present invention, the original pressure plate can be stopped by the friction mechanism at any angle between the predetermined angle and the open state, thereby achieving a so-called free stop function.

According to the present invention, it is possible to provide a transaction machine that can omit the installation space.

A: Copier

B,B’: lid opening and closing device

C: Cover

c: Automatic manuscript feeding device

D: Device body

d: Original table

DS: dead end

E: 1st rotation limiting device

F: 2nd rotation limiting device

H: cover opening and closing device

K: Wall

M: thick original

R3: Arrow

1: Installation components

1a: mounting base

1b: Both side panels

1c: backplane

1d: the first connecting member mounting hole

1e: mounting hole of pressure member

1g, 1h: mounting hole

1i: Kahegou

1j: Plywood

1k: convex seat

1m: mounting screw

1n: internal thread

2: Support member

2a: backplane

2b: Both side panels

2c: holding plate

2d: guide groove

2e: the first connector jack

2f: 2nd connecting member jack

2g: stop hole

2h: back slot

2m: convex part

3: The first connecting member

3a: bearing member

3b: Gasket

3c: E-ring

3d: surrounding slots

3e: bearing hole

4: The second connecting member

4a: Shaft

4b: E-ring

4c: surrounding groove

4d: D-shaped cutting face

4p: spacer

4s: bearing member

5: Pressure member

5a: Compressed pin

5b: roller

5d: jack

6: Lifting member

6a: backplane

6b: Both side panels

6c: mounting plate

6d: Second connecting member connecting hole

6e: Actuating pin connection hole

6g: back slot

6k: protrusion

7: Height adjustment device

7a: adjusting screw

7b: Nut

8: stop plate

8a: mounting screw

8b: Mounting board

8c: convex part

8d: protrusion

8e: fixing hole

8f: stop piece

8g: fixing hole

9: Actuating member

9c: D-shaped cutting face

10: Cam slider

10a: Cam part

10b: opening

10c: Covering part

10k: dotted line

11: Spring seat member

11a: abutment

11b: opening

12: elastic member

12a: Large diameter coil spring

12b: small diameter coil spring

21: bracket member

21a: Mounting base

21b: Both side panels

21c: Connect the side panels

21d: Card connection

21e: Second connecting member connecting hole

21f: protrusion

16: Lifting member

16b: Both side panels

16c: mounting plate

FIG. 1 shows a perspective view of a part of the upper side of a compound machine of an example of a business machine using the lid opening and closing device of the invention.

Fig. 2 is a side view showing a state in which the lid opening and closing device of the present invention is mounted on a compound machine.

FIG. 3 shows an enlarged side view of the lid opening and closing device shown in FIG. 2.

FIG. 4 shows a front view before the lid opening and closing device shown in FIG. 2 is installed in the compound machine.

5 is a perspective view of the lid opening and closing device shown in FIG. 4 viewed from the side.

Fig. 6 shows an exploded perspective view of the lid opening and closing device of the present invention.

7 shows the connecting member or actuating member of the lid opening and closing device of the present invention, wherein (a) is a perspective view of the first connecting member; (b) is a perspective view of the second connecting member; (c) is the actuating Perspective view of the component.

8 is a diagram illustrating the structure of the bracket member of Example 1; (a) is a plan view; (b) is a front view; (c) is a side view.

9 is a longitudinal cross-sectional view of the lid opening and closing device shown in FIG. 3.

FIG. 10 shows a state where the lid opening and closing device shown in FIG. 3 is opened to 30 degrees, wherein (a) is a side view thereof; (b) is a longitudinal cross-sectional view thereof.

Fig. 11 shows a state in which the lid opening and closing device shown in Fig. 3 is opened to 60 degrees, wherein (a) is a side view thereof; (b) is a longitudinal sectional view thereof.

Fig. 12 shows a state in which the lid opening and closing device shown in Fig. 3 is used and the lid is opened to 90 degrees, wherein (a) is a side view thereof; (b) is a longitudinal sectional view thereof.

13 illustrates the operation of the lid opening and closing device shown in FIG. 3 in the case where the original is a thick original such as a book, where (a) is a side view thereof; (b) is a longitudinal cross-sectional view thereof.

FIG. 14 is an explanatory diagram showing a state in which the original press plate is fully opened when the multifunction machine using the lid opening and closing device of the present invention is installed against a wall.

FIG. 15 is an explanatory diagram showing a state in which the original press plate is fully opened when a multifunction machine using a conventional lid opening and closing device is installed against a wall.

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

Furthermore, in the following description, although the embodiment of the lid opening and closing device used in a photocopier or a multifunction machine is described, the lid opening and closing device described below, as described above, can be widely used as a photocopying machine or Cover opening and closing devices for printing machines, facsimile machines, scanners, and other business machines or cabinets other than compound machines. Therefore, since the object of the present invention is not limited to the lid opening and closing device used in a photocopier or a compound machine, The original pressure plate is called a cover, and the name of the invention is designated as a cover opening and closing device, and a machine using this cover opening and closing device is set as a business machine. In the description of this specification and the scope of patent application, although these terms may be mixed together, the three have the same meaning.

In addition, the terms such as the mounting member 1, the supporting member 2, the lifting member 6, the pressure receiving member 5, the actuating member 9, the elastic member 12, and the bracket member 21 described in this specification and the scope of the patent application are not limited to The specific mounting member 1, supporting member 2, lifting member 6, actuating member 9, elastic member 12, and bracket member 21 of this embodiment are broader concepts than those described below.

Examples

According to the drawings, first, as shown in FIG. 1, on the device body D of the photocopier A of the present invention, a cover body C equipped with an automatic document feeding device c is installed through a pair of cover opening and closing devices B, B' Cheng Ke opened and closed. In one of these pairs of lid opening and closing devices B and B', the load applied when the lid opening and closing device B on the left side is opened and closed on the heavy-duty mechanism side of the automatic document feeder c It is very large, so in its elastic member (12), a double coil spring method in which two coil springs are arranged side by side is adopted. On the other hand, because the load on the lid opening and closing device B'on the right side in the figure is relatively small, although not shown, the elastic member (12) adopts a single coil spring method composed of a coil spring or uses a torsion spring (torsion spring). However, the structure around the bracket member (21) is an essential part of the present invention, and basically has the same structure, so in the following description, the cover opening device B on the left side will be described. In addition, in other office machines of a large-scale compound machine, since the weight of the cover body C increases, regardless of whether the coil spring is a double coil spring or a single coil spring, coil springs of different diameters can be superimposed into concentric circles and used.

Next, as shown in FIG. 2, when the cover C is in the closed state, the cover C is parallel to the document placement table d of the apparatus main body D, and is in close contact with the document placement table d to prevent light leakage. As shown in FIG. 14, with the lid opening and closing device B of the present invention, when the lid C is fully opened (90 degrees), since the lid C does not protrude from the rear of the device body D, it is used as a photocopier A When it is installed adjacent to the wall, etc., there is no need to reserve a space for the cover C to protrude to the rear, so the installation space for the office machine can be omitted.

As shown in FIGS. 3 to 6, the lid opening and closing device B of the present invention includes: a mounting member 1 mounted on the device body D side; and a support member 2 rotatably pivoted through the first connecting member 3 The two side plates 1b, 1b of the mounting member 1; a lifting member 6, pivotally connected to the two side plates 2b, 2b on the free end side of the support member 2 through the second connecting member 4, so that it can be connected to the support member 2 rotate in the opposite direction; a convex The wheel slider 10 is in contact with the pressure member 5 provided between the side plates 1b, 1b of the mounting member 1 and is slidably provided in the support member 2; a spring seat member 11 is in contact with the actuating member 9 Slidingly disposed in the supporting member 2, the actuating member 9 is disposed on the free end side of the lifting member 6 relative to the supporting member 2; an elastic member 12, elastically disposed between the cam slider 10 and the spring seat member 11; And a bracket member 21, pivotally connected to the two side plates 6b, 6b of the lifting member 6 and the two side plates 2b, 2b of the support member 2 through the second connecting member 4, the cover C is mounted on the bracket member 21, so that It can rotate in the opposite direction to the lifting member 6; wherein the bracket member 21 has a rotation control device, which is configured to operate with the lifting member 6 within a predetermined rotation angle range of the lifting member 6, but when the lifting member 6 exceeds It can be rotated independently at a predetermined rotation angle.

The mounting member 1 includes the following members: a mounting base 1a, which is mounted on the main body D of the device; a two-sided board 1b, 1b, from which both side ends of the mounting base 1a are respectively orthogonal to the mounting base 1a The direction (also including the slightly orthogonal direction) is bent; and a slightly rectangular back plate 1c is bent from one end (rear end) of the mounting base 1a to the upward direction orthogonal to the mounting base 1a ( It also includes slightly orthogonal directions), and engages the engagement plates 1j, 1j provided on the both side portions thereof with the engagement grooves 1i, 1i provided on the both side plates 1b, 1b of the mounting member 1 to each other. The stopper plate 8 is attached to the back plate 1c through the mounting screws 8a, 8a, and serves as a first rotation restricting device E for restricting the maximum angle (60°) of the support member 2 during the opening and closing operation of the cover C.

The first connecting member mounting holes 1d and 1d are through holes for allowing the first connecting member 3 to be rotatably mounted. In the embodiment, as shown in FIG. 7( a) in particular, the first connecting member 3 is a metal round rod provided with peripheral grooves 3 d and 3 d at both ends thereof, and passes through the first The bearing holes 3e, 3e of the bearing members 3a, 3a on the connection member mounting holes 1d, 1d connect the first connection member insertion holes 2e, 2e of the support member 2 through the gaskets 3b, 3b The 3c is fitted into the surrounding grooves 3d and 3d provided at both ends of the first connecting member insertion holes 2e and 2e protruding from these to prevent the first connecting member 3 from falling off.

In addition, the first connecting member 3 can be divided into two sections, and the two side plates 1b, 1b of the mounting member 1 and the two side plates 2b, 2b of the supporting member 2 are respectively connected by a common axis. In addition, it also includes a case where the two side plates 1b, 1b, 2b, and 2b are respectively connected by eyelets.

In the embodiment, the pressure-receiving member mounting holes 1e, 1e are through holes for allowing the pressure-receiving member 5 to be non-rotatably mounted. The structure of the pressure member 5 includes: a metal pressure pin 5a pivotally connected between the side plates 1b and 1b of the mounting member 1; and a synthetic resin roller 5b through which the pressure pin 5a passes The insertion hole 5d in its axial direction is rotatably mounted on the pressure receiving pin 5a. Insert the pressure pin 5a into the pressure After the member mounting holes 1e, 1e, both ends thereof are riveted and fixed to the pressure receiving member mounting holes 1e, 1e of the mounting member 1. Furthermore, the E-ring 3c may be used to prevent the pressure receiving pin 5a from falling off, or the pressure receiving pin 5a may be rotatably attached to the pressure receiving member mounting holes 1e, 1e.

The cylindrical side surface of the roller 5b abuts on the cam portion 10a of the cam slider 10. Apply grease (not shown) to the contact surface of the cam portion 10a and the roller 5b. In addition, the material of the roller 5b is not limited to synthetic resin, but may be sintered metal, ceramic, machined product, or others.

In addition, the pressure receiving member 5 may be formed integrally or integrally by the pressure receiving pin 5a and the roller 5b, and is rotatably attached to the pressure receiving member mounting holes 1e, 1e. Furthermore, the cam portion 10a may be configured to have a curved R shape, or the roller portion 5b may be configured to be in surface contact with the R portion of the cam portion 10a on the sliding portion side of the cam portion 10a. In addition, the pressure receiving member 5 may be a shaft made of a metal covered with a synthetic resin cylinder, and may include a fixing piece protruding from the cylinder toward the first coupling member 3.

When the mounting base 1a is mounted on the device body D, the mounting holes 1g and 1h provided in the mounting base 1a are through holes for inserting the mounting screws 1m.

The supporting member 2 includes the following members: a back plate 2a; a two side plates 2b, 2b, from which both ends of the back plate 2a are bent downward; and two holding plates 2c, 2c, from the lower ends of the two side plates 2b, 2b It is formed by bending the sides together inward. As described above, the side plates 2b and 2b are rotatably connected to the side plates 1b and 1b of the mounting member 1 by the first connecting member 3. The free ends of the side plates 2b and 2b are pivotally pivoted in the opposite direction to the support member 2 through the second connecting member 4, and as shown in FIG. 6, when the lifting member 6 is reversed, A guide groove 2d, 2d provided on the free end side of the side plates 2b, 2b allows the both end sides of the actuating member 9 to enter.

The second connection member insertion holes 2f and 2f are through holes for the second connection member 4 to pass through. Especially, as shown in FIG. 7(b), the second connecting member 4 is a metal round bar provided with a D-shaped cutting surface 4d at one end and having surrounding grooves 4c, 4c formed at both ends, wherein The portion 4a is inserted into the second connection member insertion holes 2f, 2f of the support member 2 and the second connection member connection holes 6d, 6d of the lifting member 6 and the second connection member connection holes 21e, 21e of the bracket member 21 to allow the lifting member 6 and the bracket member 21 are rotatably connected to the support member 2 and rotate in a direction opposite to the rotation direction of the support member 2 relative to the mounting member 1. The arc-shaped members provided on both sides of the second connecting member insertion holes 2f, 2f of the side plates 2b, 2b are used to take spaced convex portions 2m, 2m.

The second connecting member 4 has surrounding grooves 4c, 4c at both ends, and the bearing members 4s, 4s and The spacers 4p and 4p are interposed between the second connecting member connecting holes 6d and 6d and the second connecting member connecting holes 21e and 21e. Here, the bearing members 4 s and 4 s are used to support the second coupling member 4, and the spacers 4 p and 4 p are used to ensure that the distance between the lifting member 6 and the support member 2 is equal to each other. The second connecting member 4 prevents the second connecting member 4 from rising and falling relative to each other by fitting the E-rings 4b and 4b into the peripheral grooves 4c and 4c that protrude from both ends of the second connecting member connecting holes 21e and 21e The member 6 comes off.

In addition, the second connecting member 4 may be divided into two sections, and the two side plates 2b, 2b, 6b, 6b, 21b, and 21b of the supporting member 2 and the lifting member 6 and the bracket member 21 are individually connected by a common axis. . In some cases, eyelets can also be used. In addition, between the two side plates 2b, 2b of the supporting member 2 and the two side plates 6b, 6b of the lifting member 6 and the two side plates 21b, 21b of the bracket member 21 connected by the second connecting member 4 may be provided by A friction mechanism composed of a friction washer or a spring washer of a conventional structure serves as a friction torque generating device. With the above-described configuration, it is expected that only when the lid body C is opened, it is possible to more reliably prevent only the rotation of the bracket member 21 and perform a stable opening and closing operation.

As described above, the first connecting member insertion holes 2e and 2e are through holes for the first connecting member 3 to pass through. The stop holes 2g and 2g are a through-hole, which is inserted into a stop pin (not shown) when assembling the support member 2 and used to keep the elastic member 12 in a compressed state between the cam slider 10 and the spring seat member 11.

The withdrawal grooves 2h, 2h of the support member 2 are a through groove, one end of which is open to the rear end of the back plate 2a. When the cover C is opened, it is formed as shown in FIGS. The space where the stopper pieces 8f and 8f enter.

The structure of the lifting member 6 includes: a back plate 6a; and a pair of side plates 6b, 6b, from both ends of the back plate 6a to the downward direction orthogonal to the back plate 6a (including slightly orthogonal directions) ) Bending to form the cover supporting member 2 from the outside as shown in FIGS. 4 and 5. On one side where the elevating member 6 is pivotally connected by the second connecting member 4, a rod-shaped actuating member 9 is attached in a non-rotatable manner.

Especially as shown in FIG. 7(c) in the embodiment, the actuating member 9 is formed of a round rod made of metal, and has a D-shaped cutting surface 9c at one end side. The actuating member 9 is fixed to the elevating member 6 by penetrating through the actuating pin connecting holes 6e and 6e and riveting both ends.

In addition to directly using a round rod made of metal, the actuating member 9 may have a cylindrical abutment member attached to the round rod, or the cross-sectional shape of the cylindrical abutment member may be formed into a circular shape. Oval or rectangular. The actuating member 9 can be further rotatably mounted on the side plates 6b, 6b between. Alternatively, a top plate may be provided on the lifting member 6, and the top plate may be bent inward to constitute an actuating member, or may be made of synthetic resin. It can also be installed between the side plates 6b, 6b or on the top plate or the back plate 6a.

The withdrawal grooves 6g, 6g of the lifting member 6 are a through groove, one end of which is open to the rear end of the back plate 6a. When the cover C is opened, it is formed as a stop piece for the stop plate 8 as shown in FIG. 8f, 8f enter the space.

The structure of the height adjusting device 7 includes: an adjusting screw 7a, which is mounted on the back plate 6a; and a nut 7b. The height adjustment device 7 finely adjusts the height (inclination) of the cover C relative to the original placement table d (contact glass) in the closed state, and the cover C is fixed to be evenly pressed against the original placement table d (contact glass) ) Above.

As shown in FIG. 8 and the like, in the support member 2, the back plate 2a, the side plates 2b, 2b and the two holding plates 2c, 2c are surrounded by a C-shaped cross section, and the cam slider 10 and the spring seat member 11 are slidably It is accommodated in the expansion and contraction direction of the elastic member 12.

The cam slider 10 and the spring seat member 11 are respectively formed in a cylindrical shape with a bottom surface having a substantially rectangular cross section, and are accommodated in the support member 2 such that the openings 10b, 10b and the openings 11b, 11b face each other.

The cam portion 10 a of the cam slider 10 is in pressure contact with the pressure receiving member 5. As shown in FIG. 6 or FIG. 9, at the end of the cam slider 10 on the pressure member 5 side, a cam portion 10a inclined in one direction and flat on the upper surface is provided, and at the same time, a cover portion for covering the exposed side of the pressure member 5 is provided Cover part 10c.

The abutting portion 11 a of the spring seat member 11 is in pressure contact with the actuating member 9. As shown in FIG. 6, at the end of the spring seat member 11 on the actuating member 9 side, the abutment portion 11 a is provided to be raised. However, the contact portion 11a does not have to be provided as shown in the figure, and it may be a flat portion on the entire surface.

The cam slider 10 is pressed against the pressure receiving member 5 fixed to the mounting member 1 and pressurizes and compresses the elastic member 12. When the support member 2 rotates with respect to the mounting member 1 toward the opening direction of the cover C and rotates around the first coupling member 3, the cam slider 10 moves in the direction of arrow R3 to reduce the compression of the elastic member 12. Therefore, the elastic member 12 applies an auxiliary force to the support member 2 and the lifting member 6 to reduce the force required to lift the cover (C).

Between the cam slider 10 and the spring seat member 11, as shown in FIG. 6, the elastic member 12 is held under pressure, and the elastic member 12 is composed of large-diameter coil springs 12a, 12a and small-diameter coil springs 12b, 12b composition. The elastic member 12 is formed by superimposing the small-diameter coil springs 12b, 12b coaxially on the inside of the large-diameter coil springs 12a, 12a to achieve a large elastic coefficient, and pushing the cam slider 10 and the spring seat member 11 toward each other The direction of separation.

The elastic member 12 is elastically accommodated in the support member 2 in a state where both end portions are inserted into the openings 10 b and 10 b of the cam slider 10 and the openings 11 b and 11 b of the spring seat member 11. In addition, the number of coil springs constituting the elastic member 12 may be one or two or more, and the arrangement may be parallel connection or series connection. For example, it can be two parallel connections, two serial connections, or only one.

8 is an explanatory diagram of the structure of the bracket member 21 of the first embodiment; (a) is a plan view; (b) is a front view; (c) is a side view. 9 is an explanatory diagram showing a state in which the lid opening and closing device B of the first embodiment is closed. 10 is an explanatory diagram showing a state where the lid opening and closing device B of the first embodiment is opened to 30 degrees. 11 is an explanatory diagram showing a state where the lid opening and closing device B of the first embodiment is opened to 60 degrees.

As shown in FIG. 14, in the photocopier A of Embodiment 1 which is an example of a business machine such as a multifunction machine, the supporting member 2 is stopped at a position rotated 60 degrees relative to the mounting member 1 by moving the bracket member 21 from this position By rotating 30 degrees, the cover body C is rotated by a total of 90 degrees relative to the device body D, and the open state of the cover body C is obtained. Moreover, in order to control the rotation of the support member 2 and the bracket member 21 described above, a first rotation restricting device E is provided for restricting the rotation angle of the support member 2 relative to the mounting member 1 to 60 degrees; and a second The rotation restricting device F is used to restrict the rotation angle of the bracket member 21 relative to the support member 2 to 30 degrees. Also, here, the combination of angle values of 60 degrees + 30 degrees = 90 degrees is an example, which can be arbitrarily designed, such as 50 degrees + 50 degrees = 100 degrees.

6, as shown in FIG. 8, in the lid opening and closing device B of Embodiment 1, the bracket member 21 has mounting bases 21a, 21a, which are mounted on the lid (C); and the side plates 21b, 21b, From this, the mounting bases 21a, 21a are erected, and the two side plates 21b, 21b are pivotally connected to the free end sides of the two side plates 2b, 2b of the support member 2 so that they can rotate in the opposite direction to the lifting member 6. The two side plates 21b and 21b are formed by bending the two side plates 21c from both ends of the connecting side plate 21c in a horizontal direction (including a slightly orthogonal direction) orthogonal to the connecting side plate 21c.

The mounting bases 21a, 21a fixed to the cover C are bent outward from the two side plates 21b, 21b in the horizontal direction (including the slightly orthogonal direction) orthogonal to the mounting bases 21a, 21a, respectively. Fold and form.

Since the bracket member 21 is pivotally connected to the support member 2 through the second connecting member 4, as shown in FIGS. 10 and 13, the bracket member 21 and the elevating member 6 can be centered on the second connecting member 4 relative to the supporting member 2 Turn integrally.

Since the bracket member 21 is provided on the outer sides of the side plates 6 b and 6 b of the lifting member 6, the bracket member 21 can rotate freely with respect to the supporting member 2 regardless of the rotation state of the lifting member 6 relative to the supporting member 2.

As shown in FIG. 8, the bracket member 21 has a connecting side plate 21c which connects the opposite side plates 21b, 21b between the second connecting member 4 and the mounting base 21a. The mounting base 21a of the bracket member 21 is It is bent outward from the opposite side plates 21b, 21b. Therefore, as shown in FIG. 13, regardless of the angle of the lifting member 6 relative to the support member 2, the bracket member 21 can rotate integrally with respect to the support member 2 without being disturbed by the lifting member 6.

As shown in FIG. 13(a), the bracket member 21 has a one-way engaging portion 21d which transmits the rotation of the bracket member 21 in the closing and closing direction around the second connecting member 4 to the lifting member 6, but the rotation of the bracket member 21 in the opening direction is not transmitted to the lifting member 6. Therefore, when the heavy document M is pressed by the cover C, the carriage member 21 and the lifting member 6 rotate integrally. In addition, the bracket member 21 and the lifting member 6 rotate integrally until the opening angle of the lid C reaches 60 degrees. However, when the opening angle of the cover C is 60 degrees or more, the rotation of the support member 2 relative to the mounting member 1 will be limited to 60 degrees by the first rotation restricting device E, so the bracket member 21 will be locked from the lifting member 6 The joint 21d separates and rotates independently. Therefore, the cover C can rotate freely in the range of 60 degrees to 90 degrees.

Specifically, as shown in (a) and (b) of FIG. 8, the engaging portions 21d, 21d... bend a part of the side plates 21b, 21b of the bracket member 21 inwardly so as to The side is formed by snap-fitting the side plates 6b, 6b of the lifting member 6. The reason is that when the cover C is opened, the bracket member 21 to which the cover C is attached seems to rotate independently with the second connecting member 4 as a fulcrum, but because the bracket member 21 acts on the actuating member The elastic force of the elastic member 12 on the 9 rotates and pushes in the opening direction of the cover C using the first connecting member 3 as a fulcrum, so the bracket member 21 rotates together with the support member 2 to rotate in the opening direction of the cover C, The opening operation of the auxiliary cover C is assisted.

When the cover C is opened to 60 degrees, although the first rotation restricting device E prevents the support member 2 from further rotating, the bracket member 21 has no means for preventing the cover C from further opening. Therefore, only the bracket member 21 is rotated with the second connecting member 4 as a fulcrum, and the opening operation of the cover C attached to the bracket member 21 is allowed. However, the second rotation restricting device F prevents the rotation of the bracket member 21 from 60 degrees to stop it at the opening angle of 90 degrees of the lid. That is, by causing the protrusions 21f and 21f to abut on the protrusions (abutting portions) 6k and 6k of the lifting member 6, the bracket member 21 is prevented from further rotating through the second coupling member 4. Since the opening angle of the maximum opening angle is 90 degrees, the center of gravity of the cover body C moves to the front side, so the open state of the cover body C is stable and does not close naturally, so it is easy to safely maintain the device body D, an examination. In addition, the heavy original M such as a book on the original placing table d can be easily removed.

When the lid C is opened to the maximum opening angle (90 degrees in the embodiment), when the hand is placed on the front end of the lid C and pulled in the closing direction, the bracket member 21 will The connecting member 4 is reversed as a fulcrum so that the lid C can be closed and closed. When the cover C is closed to 60 degrees, the engaging portions 21d, 21d of the bracket member 21 are engaged with the side plates 6b, 6b of the lifting member 6, and resist the elastic member 12 acting on the actuating member 9 The elastic force rotates together with the support member 2 using the first connecting member 3 as a fulcrum, so that the lid body C can be closed and closed, and the lid body C is closed without suddenly sliding down. When the cover body C is closed to about 20 degrees, the weight of the cover body C will overcome the elastic force of the elastic member 12, and the cover body C will close with its own weight.

Next, as shown in FIG. 13(a), when the original is a heavy heavy original M such as a book, when the heavy original M is placed on the original placement table d (contact glass) and the cover C is pressed down The lifting member 6 rotating with the thick original M as the fulcrum and the second connecting member 4 as the center resists the elastic force of the elastic member 12 acting on the actuating member 9 and moves with the bracket member 21 to the support member 2 Rotate in the opposite direction to cover the upper surface of the thick original M horizontally to prevent exposure from leaking to the outside. By releasing the pressure, by the elastic force of the elastic member 12 acting on the actuating member 9, the reversed cover C is pushed back to the original position. Therefore, regardless of the thickness of the document, the lid opening and closing device B can press the document stably and uniformly on the document placement table d of the device body D.

As shown in FIG. 9, the first rotation restricting device E restricts the rotation angle of the support member 2 from the closed state of the lid C to a predetermined angle (60 degrees) smaller than the angle (90 degrees) of the open state. As shown in FIG. 6, the first rotation restricting device E is composed of a stopper plate 8 mounted on the back plate 1c of the mounting member 1 with mounting screws 8a, 8a. The mounting screws 8a, 8a pass through the stopper plate The fixing holes 8e and 8e of 8 are fixed to the back plate 1c The internal thread 1n, 1n.

The structure of the stopper plate 8 includes: a mounting board portion 8b; and a stopper piece 8f, 8f, which is formed by bending from both sides of the mounting board portion 8b, and has a pair of convex portions 8c, 8c and protrusions 8d, 8d. The back plate 1c is provided with a pair of positioning bosses 1k, 1k that are fitted into the fixing holes 8g, 8g provided in the stopper plate 8.

Moreover, the stopper plate 8 may be provided integrally with the back plate 1c of the mounting member 1, or may be a contact shaft or a pair of pins provided parallel to the actuating member 9 on the support member 2 to limit the support Angle of member 2. In the case of an abutment shaft, a friction portion may be provided for applying a frictional force to the elastic bending portion or the abutment shaft. The elastic bending portion elastically receives the abutment shaft on the upper portion of the stopper plate 8.

As shown in FIG. 12, the second rotation restricting device F restricts the rotation angle of the bracket member 21 from the state of a predetermined angle (60 degrees) to the angle of the open state by the first rotation restricting device E ( 90 degrees) minus the angle (30 degrees) of the predetermined angle (60 degrees). As shown in FIG. 12(b), the second rotation restricting device F is provided on the elevating member 6, and when the lid body C rotates from the closed state (0 degrees) to the open state (90 degrees), the protrusion 6k abuts To the protrusion 21f of the bracket member 21 to restrict the rotation of the bracket member 21.

Although the rotation control device of the bracket member 21 described in the first to third and fifth patent application ranges is not specifically indicated, its structure includes the above-mentioned first rotation restriction device E, second rotation restriction device F and elasticity As described above, the member 12 restricts the rotation angle of the support member 2 to 60 degrees by the first rotation restricting device E, and thus starts to rotate the bracket member 21 relative to the cover C by 90 degrees. In addition, the second rotation restricting device F restricts the rotation angle of the bracket member 21 to 90 degrees. Therefore, when the cover body C is opened and closed by the elastic member 12 from 0 degrees to 60 degrees, the supporting member 2 is also opened and closed.

Next, the operation of the lid opening and closing device B of Embodiment 1 will be described.

As shown in FIGS. 3 and 9, when the cover C is in the closed state (0 degrees), the cover C is closed by resisting the elastic force of the elastic member 12 mainly by the weight of the cover C to maintain a stable closing Closed state. In addition, here, the cam portion 10a of the cam slider 10 is provided with an inclination as shown by a broken line 10k, and the structure in which the pressure receiving member 5 presses the cam slider 10 obliquely downward can also rotate and push the cover in the closing direction Body C. When the cover C is in the closed state (0 degrees), the pressure-receiving member 5 will penetrate the cam slider 10 and receive the elastic force of the elastic member 12 in the most compressed state.

When the cover C is opened from the closed state, due to the support member 2, the lifting member 6 and the bracket The member 21 is always pushed by the elastic member 12 in the direction of opening the cover C, so the bracket member 21 does not reverse, but rotates together with the support member 2 and the lifting member 6 to open the cover C. This opening angle is within the range of 20 degrees to 60 degrees between the rotation torque generated by the cover C around the first connecting member 3 and the hinge torque held by the cover opening and closing device B, even if the hand removes the cover Body C will not drop naturally if loosened. Therefore, the original can be placed on the original placing table d with both hands. In addition, the self-supporting holding angle of the cover C is not limited to the holding angle in this embodiment. As shown in FIG. 11(b), by opening the lid C from the closed state to a predetermined angle (60 degrees), the elastic member 12 continues to push the pressure member 5 outward through the cam slider 10, Therefore, the cover body C will be opened from the closed state to a predetermined angle (60 degrees) when its original weight is reduced, and the rotation is restricted by the first rotation restricting device E and stopped at the predetermined angle (60 degrees). During the opening of the cover C from the closed state to a predetermined angle (60 degrees), since the pressure-receiving member 5 moves in a direction away from the cam slider 10, the compressed length of the elastic member 12 is elongated, so the elastic member 12 The force to lift the cover C through the cam slider 10 is reduced.

However, as the opening angle increases, the moment of the cover C centered on the first coupling member 3 becomes smaller, so the force of the elastic member 12 to lift the cover C through the cam slider 10 can also be Decrease. In consideration of these, the elastic member 12 is designed to maintain a predetermined angle (60 degrees) without supporting the cover C by hand. In addition, when the lid C is opened and closed, the bracket member 21 that receives the downward rotation thrust by the elastic force of the elastic member 12 is due to the two engaging portions 21d, 21d. Since the lower ends of the side plates 6b and 6b are engaged, not only the bracket member 21 but also the lifting member 6 rotates, and the lid body C can be smoothly closed and closed. Furthermore, at an opening angle of about 20 degrees, the rotation torque of the cover C due to its own weight exceeds the hinge torque, so it naturally closes.

As shown in FIG. 11(b), by further opening the cover C held at a predetermined angle (60 degrees) from the predetermined angle (60 degrees) to the open state (90 degrees), the elastic member 12 penetrates the cam slider 10 Continue to push the pressure-receiving member 5 to the outside and maintain the support member 2 at a predetermined angle (60 degrees).

The bracket member 21 is capable of rotating freely about the second connecting member 4 with respect to the support member 2 held at a predetermined angle (60 degrees) by the first rotation restricting device E, and makes the cover body C from a predetermined angle (60 degrees) ) Rotate to the open state (90 degrees).

As shown in FIG. 15, the cover opening and closing device H of the conventional technology does not provide the bracket member 21, and the mounting plate portion 16 c is formed by bending outward from the side plates 16 b of the lifting member 16. This is to cover the cover C Fixed to A comparative example of the mounting plate portion 16c. In the lid opening and closing device H of the comparative example, since the support member 2 is rotated by 90 degrees in the opened state, the lid C protrudes from the back side of the device body D.

In this regard, in the lid opening and closing device B of Embodiment 1 shown in FIG. 14, since the supporting member 2 can only be rotated to 60 degrees even in the opened state, compared with the conventional technique shown in FIG. 15 The cover body opening and closing device H is in a state where the cover body C is displaced to the front side of the device body D, and the cover body C is in an open state.

Therefore, the lid opening and closing device B of the first embodiment suppresses the amount of protrusion of the lid C toward the rear side of the device body D in the opened state, and should be ensured between the device body D and the wall K on the back side The lid opening and closing device H whose dead angle DS is smaller than that of the comparative example.

Next, when the lid C is opened to the fully open state of 90 degrees, first, the bracket member 21 is reversed and the lid C is closed. As shown in FIG. 11(a), when the cover C is closed to 60 degrees, the engaging portions 21d, 21d, ... of the bracket member 21 are engaged with the side plates 6b, 6b of the lifting member 6, Therefore, the bracket member 21 rotates together with the lifting member 6 and the support member 2 and closes the lid C.

The structure of the present invention is as described above. Even when the cover body that can be opened and closed to the rear portion of the device body of the business machine is fully opened, the rear portion does not protrude from the rear portion of the device body, so it is preferably used for omission. Cover body opening and closing device of a space-setting business machine and a business machine using the cover body opening and closing device.

B: Cover opening and closing device

C: Cover

D: Device body

d: Original table

1: Installation components

2: Support member

3: The first connecting member

4: The second connecting member

6: Lifting member

6b: Both side panels

8: stop plate

21: bracket member

21d: Card connection

Claims (10)

A lid opening and closing device includes: a mounting member installed on the side of the device body; a supporting member rotatably pivoted on both side plates of the mounting member through the first connecting member; and a lifting member through the second The connecting member is pivotally connected to the two side plates on the free end side of the supporting member so that it can rotate in the opposite direction to the supporting member; a cam slider is pressed between the two side plates provided on the mounting member The member is in contact with and slidably disposed in the support member; a spring seat member is in contact with the actuating member and is slidably disposed in the support member, the actuating member is disposed in the freedom of the lifting member relative to the support member The end side; an elastic member, which is elastically disposed between the cam slider and the spring seat member; and a bracket member, which is pivotally connected to the two side plates of the lifting member and the support member through the second connecting member On the side plate, the cover is mounted on the bracket member so that it can rotate in the opposite direction to the lifting member; wherein the bracket member has a rotation control device, which is configured to allow the bracket member to be on the lifting member Within the range of the predetermined rotation angle, the bracket member can rotate alone when the predetermined rotation angle of the lifting member is exceeded. The lid opening and closing device according to claim 1, wherein the rotation control device of the bracket member is composed of the following members: a first rotation restricting device provided between the supporting member and the mounting member; a second A rotation restricting device is provided between the lifting member and the bracket member; and an elastic member acting on the actuating member. The lid opening and closing device according to claim 2, wherein the first rotation restricting device is constituted by a stopper plate, which is provided on the rear side of the mounting member and used for a predetermined rotation angle of the supporting member and The rear side of the support member abuts. The lid opening and closing device according to claim 2, wherein the second rotation restricting device is constituted by an engaging portion, which is provided on both side plates of the bracket member and used for Snap in one direction. The lid opening and closing device according to claim 2, wherein the second rotation restricting device is constituted by a protruding portion, which is provided on the lifting member and presses against the protruding portion provided on the bracket member to restrict The rotation of the bracket member. The lid opening and closing device according to claim 1, wherein the bracket member has a connecting side plate which connects opposite side plates of the bracket member on the side of the second connecting member, and the mounting base of the bracket member The seat has a shape bent outward from the opposite side plates. The lid opening and closing device according to claim 1, wherein the bracket member is configured such that the bracket member and the supporting member rotate together with the first connecting member as a fulcrum until the predetermined opening angle of the lid body is reached When the rotation of the support member is restricted by the first rotation restricting device, the bracket member independently rotates with the second connecting member as a fulcrum, allowing the opening operation of the cover body, and the closing operation of the cover body with the The lifting member snaps and rotates together with the supporting member. The lid opening and closing device according to claim 4, wherein the bracket member is provided on the outer sides of the two side plates of the lifting member, and the engaging portion is formed to bend the two side plates of the bracket member inward One part is to be engaged with the two side plates of the lifting member. The lid opening and closing device according to claim 1, wherein a friction torque generating device is provided between the bracket member and the lifting member. A transaction machine using the lid opening and closing device according to any one of claims 1 to 9.

Images