JP6982843B2 - Hinge - Google Patents

Description

The present invention relates to, for example, a hinge for connecting a rotating portion such as a document crimping plate to a main body portion of office equipment or the like so as to be openable and closable.

Conventionally, many office equipment used in offices such as copiers, facsimiles, and scanners are provided with a document reading unit (contact glass) on the upper surface of the main body, and a document crimping plate covering the document reading unit is rotated. Equipped as a moving part. The document crimping plate is for bringing the document placed on the document reading section into close contact with the document reading section and holding the position of the document with respect to the document reading section. A hinge is used as an instrument for connecting the main body of such office equipment and the document crimping plate.

The hinge pivotally supports the rotating member on the case member via the rotating shaft, and houses the spring member and the slide member inside the case member. Further, the slide member is urged by the spring member to press the cam portion formed on the rotating member. Then, by fixing the case member to the main body of the office equipment or one of the document crimping plates and fixing the rotating member to the other, a force is applied when the user lifts the document crimping plate.

In the hinge configured as described above, a lubricant such as grease is applied to the contact portion between the slide member and the cam portion in order to ensure the slidability between the slide member and the cam portion. Then, the document placed on the document reading section of the main body of the office equipment is prevented from coming into contact with the contact portion between the slide member and the cam portion of the hinge to prevent grease and the like from adhering to the contact portion, and foreign matter is attached to the contact portion. A hinge in which a cover portion covering the contact portion is formed on a slide member or the like is known to prevent entry (see, for example, Patent Document 1 and Patent Document 2).

Japanese Unexamined Patent Publication No. 2011-107485 Japanese Unexamined Patent Publication No. 2013-20091

According to the hinge described in the above patent document, when the rotating member rotates in a direction away from the case member (when the document crimping plate is lifted from the main body of the office equipment), the cover portion abuts. It is configured to cover the part. On the other hand, when the rotating member rotates in a direction close to the case member, it is unlikely that grease or the like adheres to the original document. Therefore, from the viewpoint of design and the like, it is preferable that the cover portion is housed in the case member.

However, when the cover portion is housed in the case member, the cover portion comes into contact with the inner peripheral surface of the case member, grease or the like applied to the inside of the case member adheres to the cover portion, and the document comes into contact with the cover portion. The original may become dirty at this time. Therefore, according to the hinge according to the prior art, it is necessary to always expose the cover portion to the outside.

The present invention has been made in view of the above circumstances, and the problem to be solved by the present invention is to dispose a cover portion that covers the contact portion between the slide member and the cam portion, and to provide a rotating member. Even if the cover portion is housed in the case member when rotated in a direction close to the case member, the cover portion can be separated from the inner peripheral surface of the case member, so that the cover portion can be mounted on an office device equipped with a document reading unit. It is to provide a hinge that can prevent the original from being soiled in such a case.

Hereinafter, means for solving the above problems will be described.

That is, in claim 1, a tubular case member having a bottom portion on one end side and an opening on the other end side, a slide member slidably housed inside the case member, and the case member. The rotating member comprises a rotating member rotatably supported by a rotating shaft at the opening of the case member, and a spring member interposed between the bottom portion of the case member and the sliding member. The rotating member is configured to be able to transition between a closed state closest to the case member and an open state closest to the case member by rotating relative to the case member. On the side of the slide member, a cam portion that comes into contact with the slide member and is separated from the slide member by the rotation of the rotating member is formed, and the rotating member is moved by the urging force of the spring member. A hinge to which a force is applied in a rotation direction away from the case member, and the radial side of the rotation axis outside the cam portion on the surface of the slide member on the side of the rotation member is the said. When the rotating member is located in the closed state, it is housed in the case member, and when the rotating member is located in the open state, it extends from the case member to extend the cam portion and the slide member. A plate-shaped shielding portion is erected to cover the contact portion with the sliding member, and the case is provided on the side surface of the slide member on the side far from the rotating shaft when the rotating member is located in the open state. the portion located inside the member, a plurality of ribs sliding contact with only the inner circumferential surface of the case member facing the side surface of the inner peripheral surface of the case member is formed, said the inner peripheral surface of the case member The portion where the ribs are in sliding contact is formed of a surface parallel to the moving direction of the slide member, and the plurality of ribs are each formed so as to extend in parallel with the moving direction of the slide member, and the case member in the ribs. The portion that is in sliding contact with the inner peripheral surface of the slide member is configured to be parallel to the moving direction of the slide member.

In claim 2, a cylindrical case member having a bottom portion on one end side and an opening on the other end side, a slide member slidably housed inside the case member, and an opening of the case member. A rotating member rotatably supported by a rotating shaft at the portion, and a spring member inserted between the bottom portion of the case member and the slide member are provided.
The rotating member is configured to be able to transition between a closed state closest to the case member and an open state closest to the case member by rotating relative to the case member. On the side of the slide member in the rotating member, a cam portion is formed that abuts on the slide member and is close to and separated from the slide member by the rotation of the rotating member, and is generated by the urging force of the spring member. A hinge in which a force is applied to the rotating member in the rotational direction away from the case member, and is in the radial direction of the rotating shaft with respect to the cam portion on the surface of the slide member on the side of the rotating member. On the outside, when the rotating member is located in the closed state, it is housed in the case member, and when the rotating member is located in the open state, it extends from the case member and the cam is used. A plate-shaped shielding portion is erected to cover the contact portion between the portion and the slide member, and the inner peripheral surface of the case member facing the side surface of the slide member on the side far from the rotation axis is provided. When the rotating member is in the closed state, the sliding member is slid only on the bottom side portion of the portion where the shielding portion is housed, and only on the side surface of the slide member which is far from the rotating shaft. The ribs in contact are formed, and the portion of the outer peripheral surface of the slide member to which the ribs are in sliding contact is formed of a surface parallel to the moving direction of the slide member, and the plurality of ribs are parallel to the moving direction of the slide member. The portions of the ribs that are formed so as to extend and that are in sliding contact with the outer peripheral surface of the slide member are configured to be parallel to the moving direction of the slide member.

The hinge according to the present invention is provided with a cover portion that covers the contact portion between the slide member and the cam portion, and accommodates the cover portion in the case member when the rotating member rotates in a direction close to the case member. As for the configuration, since the cover portion can be separated from the inner peripheral surface of the case member, there is an effect that the document can be prevented from being soiled when mounted on an office device provided with a document reading unit.

The left side view which shows the multifunction device provided with the hinge which concerns on one Embodiment of this invention. Left side view showing a hinge in a closed state. Front view showing a hinge in a closed state. A cross-sectional view showing a hinge in a closed state (cross-sectional view taken along the line AA in FIG. 3). Sectional drawing showing the hinge in the open state. The cross-sectional view which shows the closed state of the hinge which concerns on another embodiment. The cross-sectional view which shows the open state of the hinge which concerns on another embodiment.

Hereinafter, the multifunction device 1 which is an office device provided with the hinge 100 according to the embodiment of the present invention will be described with reference to FIG.
The multifunction device 1 includes a main body 2 and a document crimping plate 3. In the present embodiment, the multifunction device 1 is configured to include the hinge 100, but it is also possible that another office device different from the multifunction device 1 is provided with the hinge 100.

The main body 2 is an embodiment of the main body portion according to the present invention.
The main body 2 includes a document reading device, a control device, a printing device, a display device, and an input device.
The document reading device is arranged on the upper surface of the main body 2. The document reading device reads a document placed on the upper surface (document reading unit) of the main body 2 (generates image information of the document).
The control device controls the operation of each part of the multifunction device 1, more specifically, the operation of the document reading device, the printing device described later, and the ADF described later. Further, the control device can store the image information generated by the document reading device and the image information acquired through the line (Internet line or the like) connected to the main body 2.
The printing device is located below the document reading device. The printing device prints an image on a predetermined sheet of paper based on the image information stored in the control device.
The display device comprises, for example, a liquid crystal panel, and displays information related to the operating status of the multifunction device 1.
The input device includes, for example, a button, a switch, and the like, and is operated when an operator inputs an instruction or the like to the multifunction device 1. The display device and the input device are arranged on the front surface of the upper surface of the main body 2.

The document crimping plate 3 is an embodiment of the rotating portion according to the present invention.
The document crimping plate 3 presses (crimps) the document placed on the document reading device toward the document reading device, so that the document moves when the document reading device reads the document (relative to the document reading device). The target position changes).
The document crimping plate 3 includes a pre-reading document accommodating tray, an ADF (Auto Document Feeder), and a post-scanning document accommodating tray.
The ADF takes out a plurality of originals stored in a stacked state in the pre-reading original storage tray one by one and places them in a predetermined reading position on the document reading device. After the document scanning device has finished scanning the document, the ADF scans the document placed in the scanning position and then transports the document to the document storage tray.

“Office equipment” refers to a device having at least a function of reading a document (acquiring image information of the document).
Specific examples of office equipment include (a) a scanner having a function of reading a document and a function of transmitting image information related to the scanned document to another device (for example, a personal computer), and (b) a function of reading a document. A fax machine that has a function to send image information related to a scanned document to another device via a communication line and a function to print out image information acquired from another device, (c) a function to read a document and a scanned document. Examples thereof include a copier having a function of printing out the image information according to the above, (d) the scanner, the fax, and a multifunction device having a function as a copier.

In the following description, the rotation angle θ (more precisely, the main body) of the original crimp plate 3 when the original crimp plate 3 is closed (when the lower surface of the original crimp plate 3 is in contact with the upper surface of the main body 2). The rotation angle θ of the document crimping plate 3 with respect to 2 is set to “0 degree”, and the rotation angle θ increases (the rotation angle θ becomes positive) when the document crimping plate 3 rotates in the opening direction. The rotation angle θ of the document crimping plate 3 is defined in (see FIG. 1). Further, the rotation angle θ formed by the fixing plate 30 of the hinge 100 and the hinge case 10 is also described corresponding to the above posture. That is, the rotation angle θ formed by the fixing plate 30 and the hinge case 10 when the document crimping plate 3 is closed is described as “0 degree”.

Hereinafter, the hinge 100 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 5.
As shown in FIG. 1, the hinge 100 rotatably connects the original crimping plate 3 to the main body 2 of the multifunction device 1. Specifically, the tubular hinge case 10 which is the case member according to the present invention is fixed to the main body 2 of the multifunction device 1, and the fixing plate 30 which is the rotating member according to the present invention is the original crimping plate of the multifunction device 1. By being fixed to 3, the document crimping plate 3 is rotatably connected to the main body 2. In the present embodiment, each member of the hinge 100 is injection-molded with a resin, but other materials such as metal can also be used. For example, each member of the hinge 100 can be formed by bending a metal plate.

As shown in FIGS. 2 to 5, the hinge 100 rotates at the bottom 10a on one end side (lower side in the present embodiment), the hinge case 10 having an opening on the other end side, and the opening of the hinge case 10. A fixed plate 30 pivotally supported by a shaft 25, a slide member 40 slidably housed inside the hinge case 10, a spring member 50 inserted between the bottom 10a of the hinge case 10 and the slide member 40, and the like. Equipped.

In the following, for convenience, when the document crimping plate 3 is closed with respect to the main body 2 (when the rotation angle θ = 0 degrees), the vertical direction, the front-back direction, and the horizontal direction of the compound machine 1 are used as reference (the document crimping plate 3). The shape of each member constituting the hinge 100 (corresponding the vertical direction, the front-back direction, and the left-right direction of the compound machine 1 with respect to the up-down direction, the front-back direction, and the left-right direction of the hinge 100, respectively) when is closed with respect to the main body 2. To explain.

The hinge case 10 is a tubular member having an opening formed on the upper side, and is fixed to the main body 2 of the multifunction device 1. A bottom portion 10a is formed on the lower side of the hinge case 10. Support plates 11 and 11 for supporting the rotating shaft 25 are erected upward on both the left and right sides of the upper part of the hinge case 10.

The fixing plate 30 is a block-shaped member that is rotatably supported by the support plates 11 and 11 of the hinge case 10 by the rotation shaft 25. A fixing hole 30a that penetrates the fixing plate 30 in the left-right direction is formed at the rear portion of the fixing plate 30, and a cam portion 31 that bulges downward is formed at the lower end portion. The cam portion 31 comes into contact with the cam contact projection 41 of the slide member 40, and is brought close to and separated from the slide member 40 by the rotation of the fixing plate 30. The fixing plate 30 is formed with a fixing portion 32 extending in the left-right direction, and the fixing portion 32 is fixed to the document crimping plate 3 of the multifunction device 1.

As shown in FIG. 2, the fixing plate 30 is pivotally supported by the rotation shaft 25 on the support plates 11 and 11 of the hinge case 10. Specifically, as shown in FIGS. 4 and 5, the fixing plate 30 is pivotally supported by the hinge case 10 by inserting the rotating shaft 25 into the fixing holes 30a of the support plates 11 and 11 and the fixing plate 30, respectively. ..

As shown in FIGS. 2 to 4, the slide member 40 is a resin member slidably housed inside the hinge case 10. The slide member 40 is a bottomed cylindrical member having an opening at the bottom, and has a cam contact protrusion 41 and a regulation protrusion 44 protruding upward on the upper surface thereof, which is the side of the fixing plate 30, and a housing hole 40a on the lower surface. It is formed.

A spring member 50 is inserted between the bottom portion 10a of the hinge case 10 and the slide member 40. Specifically, as shown in FIGS. 2 to 5, the lower end portion of the spring member 50 is in contact with the upper surface of the bottom portion 10a, and the upper end portion is accommodated in the accommodation hole portion 40a of the slide member 40 and the bottom surface of the accommodation hole portion 40a. Is in contact with.

As described above, by inserting the spring member 50 between the hinge case 10 and the slide member 40, the urging force of the spring member 50 applies a force in the rotation direction in which the fixing plate 30 is separated from the hinge case 10. Will be done. Specifically, as shown in FIG. 5, the force from the spring member 50 is upward transmitted to the cam portion 31 of the fixing plate 30 via the cam contact projection 41 of the slide member 40. As a result, the front portion of the fixing plate 30 (the portion where the fixing portion 32 is formed) rotates in the upward lifting direction. As shown in FIG. 5, the rotation of the rotated fixing plate 30 is restricted by the rear portion of the cam portion 31 coming into contact with the regulating protrusion 44. The hinge 100 according to the present embodiment is configured so that the rotation of the fixed plate 30 is restricted when the rotation angle of the fixed plate 30 becomes 60 degrees.

In this way, the fixed plate 30 rotates relative to the hinge case 10 so that it is in a closed state closest to the hinge case 10 (as shown in FIGS. 2 and 4, the rotation angle is 0 degrees). A state) and an open state (a state in which the rotation angle is 60 degrees as shown in FIG. 5), which is the most distant from the hinge case 10, can be transitioned. The fully open state and the open state for use can be appropriately changed by changing the shape of the cam portion 31 and the like.

In the hinge 100 according to the present embodiment, a flat plate shape extending in the vertical and horizontal directions is provided on the radial outer side (front side) of the rotation shaft 25 with respect to the cam portion 31 on the side surface (upper surface) of the fixed plate 30 of the slide member 40. The shielding portion 42 of the above is erected upward. As shown in FIGS. 2 to 4, the shielding portion 42 is housed in the hinge case 10 when the fixing plate 30 is in the closed state. Further, as shown in FIG. 5, the shielding portion 42 extends from the hinge case 10 when the fixing plate 30 is in the open state, and is the front side of the contact portion between the cam portion 31 and the cam contact projection 41, that is, Covers the side of the document reading unit of the main body 2. As a result, when the fixed plate 30 is in the closed state, the document placed on the document reading portion of the main body 2 comes into contact with the contact portion between the cam portion 31 and the cam contact protrusion 41, and grease or the like adheres to the contact portion. It prevents you from doing it. Further, the shielding portion 42 prevents foreign matter from entering the contact portion between the cam portion 31 and the cam contact protrusion 41.

Further, in the hinge 100, the rib 43.43. Is formed in a portion (see FIG. 5) located inside the hinge case 10 when the fixing plate 30 is located in the open state. As shown in FIG. 4, when the ribs 43, 43, and the ribs 43, 43, ... The shielding portion 42 and the front inner peripheral surface 10b can be separated from each other.

As a result, when the hinge 100 is mounted on the multifunction device 1, the grease or the like applied to the front inner peripheral surface 10b does not adhere to the shielding portion 42, so that when the shielding portion 42 extends from the hinge case 10. Even if the document comes into contact with the shielding portion 42, the document will not be soiled. Further, since the ribs 43, 43, and also do not come out of the hinge case 10, the document does not come into contact with the ribs 43, 43, and so on. That is, even if the shielding portion 42 is housed in the hinge case 10 when the fixing plate 30 rotates in a direction close to the hinge case 10, it is possible to prevent the document from being soiled.

Next, the hinge 200 according to another embodiment of the present invention will be described with reference to FIGS. 6 and 7. The hinge 200 according to the present embodiment has many configurations common to the hinge 100 according to the embodiment. Therefore, in the description of the present embodiment, the configuration different from that of the hinge 100 will be mainly described, and the common configuration will be designated by the same reference numerals and detailed description thereof will be omitted.

As shown in FIGS. 6 and 7, in the hinge 200, the slide member 140 is slidably housed inside the hinge case 110. Then, on the front inner peripheral surface 110b of the hinge case 110, a slide facing the portion on the bottom 10a side (lower side) of the portion in which the shielding portion 42 is accommodated when the fixing plate 30 is in the closed state. Ribs 110c, 110c, ... That are in sliding contact with the front surface 140b of the member 140 are formed (see FIG. 6). As described above, when the ribs 110c, 110c, and the ribs 110c, 110c, and the ribs are in sliding contact with the front surface 140b, the fixing plate 30 is positioned in the closed state and the shielding portion 42 is housed in the hinge case 110, the shielding portion 42 is as shown in FIG. A gap can be formed between the front inner peripheral surface 110b and the front inner peripheral surface 110b.

As a result, the grease or the like applied to the front inner peripheral surface 110b does not adhere to the shielding portion 42, so that even if the document comes into contact with the shielding portion 42 when the shielding portion 42 extends from the hinge case 110. The manuscript will not get dirty. Further, since the shielding portion 42 does not come into contact with the ribs 110c / 110c ... even when it is housed in the hinge case 10, the grease or the like attached to the ribs 110c / 110c ... adheres to the shielding portion 42. There is no. That is, even if the shielding portion 42 is housed in the hinge case 110 when the fixing plate 30 rotates in a direction close to the hinge case 110, it is possible to prevent the document from being soiled.

10 Hinge case (case member)
10b Front inner peripheral surface 25 Rotating shaft 30 Fixed plate (rotating member)
31 Cam part 40 Slide member 40b Front side surface 42 Shielding part 43 Rib 50 Spring member 100 Hinge

Claims (2)

A cylindrical case member having a bottom portion on one end side and an opening on the other end side, a slide member slidably housed inside the case member, and a rotation shaft at the opening of the case member. A rotating member rotatably supported by the shaft and a spring member inserted between the bottom of the case member and the slide member are provided.
The rotating member is configured to be able to transition between a closed state closest to the case member and an open state closest to the case member by rotating relative to the case member.
On the side of the slide member in the rotating member, a cam portion that comes into contact with the slide member and is brought close to and separated from the slide member by the rotation of the rotating member is formed.
A hinge in which a force is applied in a rotation direction in which the rotating member is separated from the case member by the urging force of the spring member.
When the rotating member is located in the closed state, it is housed in the case member on the radial side of the rotating shaft with respect to the cam portion on the surface of the sliding member on the side of the rotating member. At the same time, when the rotating member is located in the open state, a plate-shaped shielding portion is erected so as to extend from the case member and cover the contact portion between the cam portion and the slide member.
On the side surface of the slide member on the side far from the rotation axis, when the rotation member is located in the open state, the portion located inside the case member is located on the inner peripheral surface of the case member. A plurality of ribs that are in sliding contact only with the inner peripheral surface of the case member facing the side surface are formed.
The portion of the inner peripheral surface of the case member with which the rib is in sliding contact is formed of a surface parallel to the moving direction of the slide member.
The plurality of ribs are each formed so as to extend in parallel with the moving direction of the slide member.
The portion of the rib that is in sliding contact with the inner peripheral surface of the case member is configured to be parallel to the moving direction of the slide member.
Hinge. A cylindrical case member having a bottom portion on one end side and an opening on the other end side, a slide member slidably housed inside the case member, and a rotation shaft at the opening of the case member. A rotating member rotatably supported by the shaft and a spring member inserted between the bottom of the case member and the slide member are provided.
The rotating member is configured to be able to transition between a closed state closest to the case member and an open state closest to the case member by rotating relative to the case member.
On the side of the slide member in the rotating member, a cam portion that comes into contact with the slide member and is brought close to and separated from the slide member by the rotation of the rotating member is formed.
A hinge in which a force is applied in a rotation direction in which the rotating member is separated from the case member by the urging force of the spring member.
When the rotating member is located in the closed state, it is housed in the case member on the radial side of the rotating shaft with respect to the cam portion on the surface of the sliding member on the side of the rotating member. At the same time, when the rotating member is located in the open state, a plate-shaped shielding portion is erected so as to extend from the case member and cover the contact portion between the cam portion and the slide member.
The inner peripheral surface of the case member facing the side surface of the slide member on the side far from the rotation axis is more than a portion in which the shielding portion is housed when the rotation member is in the closed state. A rib is formed on the bottom side portion so as to be in sliding contact only with the side surface of the slide member on the side far from the rotation axis .
The portion of the outer peripheral surface of the slide member with which the ribs are in sliding contact is formed of a surface parallel to the moving direction of the slide member.
The plurality of ribs are each formed so as to extend in parallel with the moving direction of the slide member.
The portion of the rib that is in sliding contact with the outer peripheral surface of the slide member is configured to be parallel to the moving direction of the slide member.
Hinge.

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