JP2020060625A - Hinge - Google Patents

Abstract

To cause a damper effect to occur with a configuration other than a damper and to easily achieve a thing that increases a damper effect more as a second wing member is rotated further in an opening direction.SOLUTION: A hinge 100 includes a first wing member fixed to a first connection object, a second wing member fixed to a second connection object and connected to the first wind member rotatably through a rotary shaft, and a slide member movable in a direction of coming close to a cam member and in a direction of separating from the cam member. The second wing member is provided with an intermediate member 20 to be connected to the first wing member rotatably through a rotary shaft, the intermediate member 20 is provided with a projection part 23 for causing slide resistance when the slide member is moved by being brought into contact with the slide member, and the projection part 23 has a part in which the width of a direction side part where the slide member approaches the cam member is wider than the width of a direction side part where the slide member separates from the cam member.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a hinge that connects a second connection target to a first connection target so as to be openable and closable, for example, to connect a document pressure plate of an office device to the main body of the office device so as to be opened and closed.

  2. Description of the Related Art Conventionally, most office equipment such as copiers, facsimiles, scanners, etc. used in offices have an original reading section (contact glass) on the upper surface of the main body and an original pressure plate for covering the original reading section. . The document pressure plate is configured to bring the document placed on the document reading unit into close contact with the document reading unit and hold the position of the document with respect to the document reading unit.

  As a device for connecting the main body of the office equipment and the original pressure plate, a first wing member, a cam member fixed to the first wing member, and a rotatably connected to the first wing member via a rotary shaft. A second wing member, a slide member movable in a direction approaching the cam member and a direction moving away from the cam member, and the slide member acting as a cam member by urging the slide member in a direction approaching the cam member. A hinge including a biasing member that abuts is known (see Patent Document 1).

JP, 2011-191728, A

However, although it is conceivable that the hinge is provided with a damper in order to generate a cushioning effect (damper effect) when the second wing member rotates with respect to the first wing member, the damper may be provided on the existing hinge. In order to provide it, the entire design needs to be changed, which may be difficult to realize.
Further, even if the hinge is provided with a damper, it may be required to adjust the cushioning effect of the damper according to the rotation angle of the second wing member, which is realized depending on the required specifications. Can be difficult. For example, when the specifications are such that the cushioning effect of the damper increases as the second wing member rotates in the opening direction, it may be necessary to change the design of the damper, cam member, etc. There is.

  The present invention has been made in view of the above circumstances, and a damper effect can be produced by a configuration other than the damper, and the damper effect increases as the second wing member rotates in the opening direction. It is an object of the present invention to provide a hinge that can be easily realized.

  The problem to be solved by the present invention is as described above, and means for solving the problem will be described below.

  That is, in claim 1, the first wing member fixed to the first connecting object, the cam member fixed to the first wing member, and the first wing fixed to the second connecting object. A second wing member that is rotatably connected to the member via a rotation shaft, and a slide that is housed in the second wing member and is movable in a direction approaching the cam member and a direction separating from the cam member. A member and a biasing member that biases the slide member against the cam member by biasing the slide member toward the cam member, wherein the second wing member is the first wing member. An intermediate member that is rotatably connected to the wing member via a rotation shaft, and a fixing member that is fixed to the second connection target and is rotatably connected to the intermediate member via a rotation shaft. When, The intermediate member includes a convex portion that abuts on the slide member to generate sliding resistance when the second wing member rotates and the slide member moves, and the convex portion includes The hinge has a portion in which the width of the direction side portion where the slide member approaches the cam member is wider than the width of the direction side portion where the slide member is separated from the cam member.

The effects of the present invention are as follows.
That is, according to the present invention, it is possible to easily realize a damper effect with a configuration other than the damper, and the damper effect increases as the second wing member rotates in the opening direction. it can.

FIG. 3 is a right side view showing a multifunction machine including a hinge according to the embodiment of the present invention. The right side view which similarly shows the open state of a hinge. Similarly, a right side view showing a lifted state of the hinge. Similarly, the front view which shows the lifted state of a hinge. The rear view which similarly shows the lifted state of a hinge. Similarly, the top view which shows the lifted state of a hinge. Similarly, the bottom view which shows the lifted state of a hinge. The right side view which similarly shows the closed state of a hinge. Sectional drawing which similarly shows the open state of a hinge. The perspective view which similarly shows the intermediate member of a hinge. Similarly, the front view which shows the intermediate member of a hinge. The right side view which similarly shows the intermediate member of a hinge. The left side view which similarly shows the intermediate member of a hinge. The top view which similarly shows the intermediate member of a hinge. The bottom view which similarly shows the intermediate member of a hinge. Sectional drawing which similarly shows the intermediate member of a hinge. Similarly, it is an enlarged sectional view showing an intermediate member of the hinge. Similarly, an enlarged plan view showing an intermediate member of the hinge. Similarly, an enlarged plan view showing an intermediate member of the hinge. Similarly, an enlarged plan view showing an intermediate member of the hinge. Similarly, an enlarged plan view showing an intermediate member of the hinge. Similarly, an enlarged plan view showing an intermediate member of the hinge. Similarly, an enlarged plan view showing an intermediate member of the hinge. Similarly, an enlarged plan view showing an intermediate member of the hinge. Similarly, an enlarged plan view showing an intermediate member of the hinge. Similarly, an enlarged plan view showing an intermediate member of the hinge. Similarly, an enlarged plan view showing an intermediate member of the hinge.

Hereinafter, a multifunction machine 1 which is an embodiment of the office equipment will be described with reference to FIG.
The multi-function machine 1 includes a main body 2 and a document pressure plate 3. In the present embodiment, the multi-function device 1 is configured to include the hinge 100 according to the first embodiment of the present invention, but the multi-function device 1 may be configured to include hinges according to other embodiments described later. Is.

The main body 2 is an embodiment of the first connection object 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 of the main body 2 (generates image information of the document).
The control device controls the operation of each unit of the multifunction machine 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 a line (Internet line or the like) connected to the main body 2.
The printing device is arranged below the document reading device. The printing device prints an image on a predetermined sheet based on the image information stored by the control device.
The display device is composed of, for example, a liquid crystal panel, and displays information related to the operation status of the multi-function peripheral 1.
The input device is composed of, for example, buttons, switches, etc., and is operated when an operator inputs an instruction or the like to the multifunction machine 1. The display device and the input device are arranged on the front part of the upper surface of the main body 2.

The original pressure plate 3 is an embodiment of the second object to be connected according to the present invention.
The document pressure plate 3 presses (compresses) 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. Change the target position).
The document pressure plate 3 includes a document storage tray before reading, an ADF (Auto Document Feeder), and a document storage tray after reading.
The ADF sequentially takes out a plurality of originals stored in a stack in a pre-reading original storage tray one by one and places them on a predetermined reading position on the original reading device. After the document reading device finishes reading the document, the ADF conveys the document placed at the reading position to the document storage tray after reading.

“Office equipment” refers to an apparatus having at least a function of reading a document (obtaining image information of the document).
Specific examples of the office equipment include (a) a scanner having a function of reading a document and a function of transmitting image information related to the read document to another device (for example, a personal computer), (b) a function of reading the document, A fax having a function of transmitting image information related to a read document to another device through a communication line and a function of printing out image information acquired from another device, (c) a function of reading a document, and a read document Examples thereof include a copier having a function of printing out image information related to (3), (d) a scanner, a fax machine, and a multifunction machine having a function as a copier.

The hinges according to the respective embodiments described in detail below are used for connecting the document pressure plate 3 to the main body 2 of the multifunction machine 1 so as to be openable / closable (rotatably). It is not limited to this.
That is, the hinge according to the present invention is widely applicable to "use of connecting one member (first connection target object) of the two members to the other member (second connection target object) in an openable and closable manner". is there.
Specific examples of other applications to which the hinge according to the present invention is applied include an application to openably and closably connect a hatch (lid) for exchanging a toner cartridge to a main body of office equipment, and an opening and closing of a hood to an automobile body And the like, the use of connecting the toilet seat to the toilet so that it can be opened and closed, and the like.

  In the following description, the rotation angle θ of the original pressure plate 3 when the original pressure plate 3 is closed (when the lower surface of the original pressure plate 3 is in contact with the upper surface of the main body 2) (more precisely, the main body). The rotation angle θ of the original pressure plate 3 with respect to 2 is set to “0 degrees” so that the rotation angle θ increases (the rotation angle θ becomes positive) when the original pressure plate 3 rotates in the opening direction. The rotation angle θ of the original cover 3 is defined (see FIG. 1). In the present embodiment, the rotation angle θ of the document pressure plate 3 with respect to the main body 2 also matches the rotation angle of the second wing member from the closed state with respect to the first wing member, which will be described later. Therefore, in the present embodiment, both are described as "rotation angle θ".

Hereinafter, the hinge 100, which is an embodiment of the hinge according to the present invention, will be described with reference to FIGS. 1 to 27.
As shown in FIG. 1, the hinge 100 rotatably connects the original pressure plate 3 to the main body 2 of the multifunction machine 1.
As shown in FIGS. 2 to 9, the hinge 100 includes a lower fixing member 10, an intermediate member 20, a first rotating pin 71, an upper fixing member 30, a second rotating pin 72, a pressure receiving portion 73, a first slider 40, The second slider 50, the spring 60, the damper 62, the cam member 80, and the oil fence 90 are provided.
In the following, for convenience, the original pressure plate 3 is closed with respect to the main body 2 (when the rotation angle θ = 0 degree), with reference to the vertical direction, front-back direction, and left-right direction of the multifunction machine 1 (the original pressure plate 3). The shape of each member that constitutes the hinge 100 in which the vertical direction, the front-back direction, and the left-right direction of the multifunction machine 1 when the hinge 100 is closed with respect to the main body 2 correspond to the vertical direction, the front-back direction, and the left-right direction of the hinge 100, respectively. Will be explained.

The lower fixing member 10 is an embodiment of the first wing member according to the present invention. The lower fixing member 10 is fixed to the main body 2 of the multifunction machine 1.
The lower fixing member 10 of this embodiment is formed by appropriately bending a single metal plate. The lower fixing member 10 includes a bottom plate 11, left and right side plates 12 and 12, and a back plate 13.

  The bottom plate 11 is a plate-shaped member that forms the lower part of the lower fixing member 10. The bottom plate 11 has a pair of upper and lower plate surfaces. The shape of the bottom plate 11 is a generally rectangular shape that is slightly long in the front-rear direction in a plan view.

  The side plate 12 is a plate-shaped member that forms left and right sides of the lower fixing member 10. The side plate 12 has a shape like a staircase that is generally downward in the front view. The lower end of the side plate 12 is connected to the end of the bottom plate 11 (the bottom plate 11 and the side plates 12 and 12 are formed by bending one metal plate at a right angle). A through hole for inserting the first rotation pin 71 is opened in the rear upper end portion of the side plate 12.

The back plate 13 is a plate-shaped member that forms the rear part of the lower fixing member 10. The back plate 13 has a pair of front and rear plate surfaces. The shape of the back plate 13 is a generally rectangular shape that is slightly longer in the left-right direction when viewed from the front.
The lower end of the back plate 13 is connected to the rear end of the bottom plate 11 (the bottom plate 11 and the back plate 13 are formed by bending one metal plate at a right angle).

As shown in FIGS. 10 to 17, the intermediate member 20 is a member formed by a top plate 21 and left and right side plates 22 and 22 by appropriately bending a single metal plate.
The top plate 21 is a plate-shaped member that forms an upper portion of the intermediate member 20. The top plate 21 has a pair of upper and lower plate surfaces. The shape of the top plate 21 is a generally rectangular shape that is slightly long in the front-rear direction in a plan view.
The side plate 22 is a plate-shaped member that forms left and right side portions of the intermediate member 20. The upper end of the side plate 22 is connected to the end of the top plate 21 (the top plate 21 and the side plates 22 and 22 are formed by bending a single metal plate at a right angle). A through hole for inserting the first rotation pin 71 is opened in the rear upper end portion of the side plate 22. The shape of the side plate 22 is a generally rectangular shape that is slightly longer in the front-rear direction in a side view.
As will be described later, the intermediate member 20 is rotatably supported by the lower fixed member 10 via the first rotation pin 71 while accommodating the first slider 40, the second slider 50, the spring 60, the damper 62 and the like. . A through hole for inserting the first turning pin 71 is opened in the left and right direction at the rear portion of the side plates 21, 21.

  As shown in FIGS. 2 to 9, the first rotation pin 71 is a rotation shaft of the second wing member with respect to the first wing member (the second wing member is rotatable with respect to the first wing member according to the present invention). It is an embodiment of a “rotating shaft to be connected”, and is a substantially columnar member.

  The first rotation pin 71 is inserted into the through holes of the side plates 21 of the intermediate member 20 and the through holes of the side plate 12 of the lower fixing member 10. The intermediate member 20 is rotatably connected to the lower fixed member 10 via the first rotation pin 71.

  The upper fixing member 30 is an embodiment of the fixing member according to the present invention, and is a substantially cylindrical member formed by the top plate and the left and right side plates 31, 31 by appropriately bending a single metal plate. . The upper fixing member 30 is rotatably supported by the intermediate member 20 via the second rotating pin 72 as described later. Further, the upper fixing member 30 is fixed to the original pressure plate 3.

  The second rotating pin 72 is an embodiment of the “rotating shaft of the fixing member with respect to the intermediate member (rotating shaft that rotatably connects the fixing member to the intermediate member)” according to the present invention, and is the upper fixing member. It is a member that forms a rotation shaft that rotatably connects 30 to the intermediate member 20. The second rotation pin 72 is a member having a substantially columnar shape, and is inserted into the front portions of the upper fixing member 30 and the intermediate member 20. As a result, the upper fixing member 30 is rotatably connected to the intermediate member 20 via the second rotating pin 72.

  In the hinge 100, the state in which the upper fixing member 30 and the intermediate member 20 are closed with respect to the fixing member 10 (rotation angle θ = 0 °) is a closed state, and the upper fixing member 30 and the intermediate member are fixed with respect to the fixing member 10. A state in which 20 is open is defined as an open state. Further, in the hinge 100, when the hinge 100 is open, a state in which the upper fixing member 30 is rotated in the opening direction with respect to the intermediate member 20 is a lift state.

The pressure receiving portion 73 is an embodiment of the pressure receiving portion according to the present invention. The pressure receiving portion 73 is a member formed by bending a single metal plate-shaped member formed in a substantially T shape, and is fixed to the top plate of the upper fixing member 30 with screws or the like. The pressure receiving portion 73 includes a back plate portion 73a, left and right side plate portions 73b and 73b, left and right fixing portions 73c and 73c, and a curved plate portion 73d.
The side plate portion 73b is bent from the back plate portion 73a. The side plate portion 73b has a through hole through which the second rotation pin 72 is inserted.
The fixed portion 73c is bent outward from the end of the side plate portion 73b. The fixing portion 73c is a portion fixed to the top plate of the upper fixing member 30.
The curved plate portion 73d is arranged closer to the back plate portion 73a than the through hole of the side plate portion 73b (in the direction opposite to the second rotation pin 72). The curved plate portion 73d is curved so as to project rearward (from the second slider 50 side) from the back plate portion 73a to form a curved surface, and is bent so that its end portion is located between the side plate portions 73b. The end of the curved plate portion 73d is fixed to the side plate portion 73b. The outer surface (the surface on the second slider 50 side) of the curved surface portion projecting downward of the curved plate portion 73d is configured as a cam surface, and contacts the cam contact surface 52 of the second slider 50. The portion configured as the cam surface of the curved plate portion 73d is configured by a curved surface in which different curvatures are continuous.
Here, when the portion of the curved plate portion 73d that is configured as the cam surface is a curved surface that is formed with a perfect circular curvature (for example, in the case of a cylindrical outer surface), specifications other than the curved plate portion 73d are used. Unless changed, it was difficult to perform torque control according to the rotation angle of the upper fixing member 30 with respect to the intermediate member 20, but the curved plate portion 73d (the cam surface of the curved plate portion 73d) is configured in this way. Therefore, it is possible to perform torque control according to the rotation angle of the upper fixing member 30 with respect to the intermediate member 20.
In addition, since the pressure receiving portion 73 is formed by bending a single metal plate-shaped member in this manner, it is possible to reduce the cost as compared with a pin-shaped member.

The first slider 40 is an embodiment of the slide member according to the present invention. The first slider 40 of this embodiment is made of a resin material.
The first slider 40 has a cam contact surface 41 on the rear surface. A spring receiving hole for accommodating the rear end portion of the spring 60 is formed in the first slider 40. The first slider 40 is housed inside the intermediate member 20 at the rear portion so as to be slidable in the front-rear direction.

The second slider 50 is an embodiment of the slide member according to the present invention. The second slider 50 of this embodiment is made of a resin material.
The second slider 50 has a cam contact surface 52 on the front surface. The second slider 50 has a spring receiving hole for accommodating the front end portion of the spring 60.
On the bottom surface of the spring receiving hole of the second slider 50, a pressing recess 53 that presses the tip portion 62a of the damper 62 is formed so as to protrude toward the first rotating pin 71 side.

  In the present embodiment, "a combination of the intermediate member 20, the upper fixing member 30, the second slider 50, the second turning pin 72 and the pressure receiving portion 73" is one embodiment of the second wing member according to the present invention. Equivalent to. In other words, one embodiment of the second wing member according to the present invention includes the intermediate member 20, the upper fixing member 30, the second slider 50, the second rotating pin 72, and the pressure receiving portion 73. Then, the upper fixing member 30 is fixed to the original pressure plate 3, so that the second wing member is fixed to the second connection target.

  In the present embodiment, the state in which the second wing member is closest to the first wing member is the “closed state” of the second wing member (the state in which the original pressure plate 3 is closed with respect to the main body 2). The closed state refers to a state in which the rotation angle θ of the second wing member with respect to the first wing member from the closed state is 0 degree. Further, a state in which the second wing member is farthest from the first wing member is referred to as a “fully open state” of the second wing member. The fully opened state is a state in which the original pressure plate 3 is opened with respect to the main body 2 and the rotation angle θ is 90 degrees.

  The spring 60 is an embodiment of the biasing member, and is composed of a metal winding spring (compression spring). The spring 60 is housed inside the intermediate member 20 (a spring receiving hole between the first slider 40 and the second slider 50).

  The rear end portion of the spring 60 is inserted into a spring receiving hole formed in the first slider 40 and abuts on the bottom surface of the spring receiving hole. Further, the front end portion of the spring 60 is inserted into a spring receiving hole formed in the second slider 50 and contacts the bottom surface of the spring receiving hole.

  Due to the biasing force generated by the spring 60, that is, the force (elastic force) of the spring 60 elastically deformed in the compression direction to return to its original shape (the shape when no external force is acting), the first slider 40 Is urged in the longitudinal direction of the intermediate member 20 toward the first rotation pin 71, and the second slider 50 is urged in the longitudinal direction of the intermediate member 20 toward the pressure receiving portion 73.

  The damper 62 is housed in the spring receiving holes of the first slider 40 and the second slider 50. The body portion of the damper 62 is fixed to the bottom portion of the first slider 40, and the tip portion 62a thereof projects toward the second rotation pin 72 side. The damper 62 generates a reaction force when the tip 62a is pressed by the pressing recess 53 of the second slider 50. Therefore, the reaction force reduces the speed at which the first slider 40 moves, and the damper 62 produces a cushioning effect. The damper 62 is composed of a general fluid damper.

  The cam member 80 is made of a resin material. The cam member 80 is fixed to the back plate 13 of the lower fixing member 10 with screws or the like. The first rotation pin is inserted into the through hole formed in the upper rear portion of the cam member 80. A cam surface 81 that contacts the cam contact surface 41 of the first slider 40 is formed on the upper rear portion of the cam member 80.

When the cam member 80 is attached to the lower fixing member 10 and the second wing member is closed, the cam contact surface 41 of the first slider 40 contacts the cam surface 81 of the cam member 80 and the second slider The cam contact surface 52 of 50 contacts the curved plate portion 73d of the pressure receiving portion 73.
As a result, the elastic force generated in the spring 60 urges the intermediate member 20 (and thus the embodiment of the second wing member according to the present invention) to rotate in the opening direction with respect to the lower fixing member 10. The upper fixing member 30 is urged to rotate in the closing direction with respect to the intermediate member 20. At this time, the tip portion 62a of the damper 62 is pressed by the pressing recess 53 of the second slider 50 and is pushed into the main body side.

  In the present embodiment, when the rotation angle θ of the second wing member with respect to the first wing member from the closed state is in the first region from 0 degree to the first predetermined angle φ1 (when 0 degree ≦ θ ≦ φ1 ), The elastic force generated in the spring 60 causes the second wing member to rotate in a direction in which the second wing member is opened with respect to the first wing member. For example, the first predetermined angle φ1 is set to 70 degrees (rotational angle θ = first predetermined angle φ1 = 70 degrees). The first predetermined angle φ1 can be set to another angle other than 70 degrees.

In the present embodiment, the rotational force to close the hinge 100 due to the weight of the original pressure plate 3 fixed to the upper fixing member 30 and the opening force to open the hinge 100 due to the urging force of the spring 60. The shape and the like of the cam contact surface 41 of the first slider 40 or the cam surface 81 of the cam member 80 are determined in advance so that the rotational force to be generated is approximately balanced.
With this configuration, when the operator releases his / her hand from the original pressure plate 3 when the rotation angle θ of the original pressure plate 3 with respect to the main body 2 of the multifunction machine 1 is in the range of 0 ° to φ1. The moving angle θ is held.

The oil fence 90 is arranged near the cam surface 81 of the cam member 80 and in front of the cam surface 81 of the cam member 80 and the cam contact surface 41 of the first slider 40. The oil fence 90 receives the cam contact of the first slider 40 from the outside of the first slider 40 and the cam member 80 from the closed state to the opened state of the intermediate member 20 (over the entire rotation range of the intermediate member 20). Foreign matter (for example, a document or the like) is prevented from entering the contact portion side between the surface 41 and the cam surface 81 of the cam member 80. The oil fence 90 hides the cam surface 81 of the cam member 80 (the contact portion between the cam contact surface 41 of the first slider 40 and the cam surface 81 of the cam member 80) from the front outside so that the oil fence 90 does not contact the outside. It is configured to shield space.
The oil fence 90 is supported by the first slider 40 and the cam member 80, and is configured to be movable along with the rotating operation of the intermediate member 20.

The oil fence 90 includes a main body 91, a pair of first arms 92, and a pair of second arms 93.
The main body 91 is formed in a flat plate shape having a lateral width larger than that of the cam member 80 (cam surface 81).
The first arm 92 is formed to have a convex portion that protrudes from the main body portion 91 toward the second rotation pin 72 and that further protrudes outward in the left-right direction at the end portion on the protrusion side.
The second arm 93 is formed so as to protrude from the main body 91 to the lower fixing member 10 side, and has a convex portion that further protrudes inward in the left-right direction at the end portion on the protruding side.

The first slider 40 includes a first guide portion 42.
The first guide portion 42 is a groove (through groove) formed on the left and right side surfaces of the first slider 40, and the convex portion of the first arm 92 of the oil fence 90 is arranged to guide the movement of the oil fence 90. To do.
The first guide portion 42 has a flat plate protruding on the left and right sides of the front side of the first slider 40, and is linearly formed on the flat plate along the moving direction of the first slider 40.

The cam member 80 includes a second guide portion 82.
The second guide portion 82 is a groove (concave groove) formed on the left and right side surfaces of the cam member 80, and the convex portion of the second arm 93 of the oil fence 90 is arranged to guide the movement of the oil fence 90. To do.
The second guide portion 82 is formed so as to extend upward from the bottom portion of the cam member 80 and bend forward and upward in the vicinity of the cam surface 81.

As described above, the oil fence 90 is provided in front of the cam surface 81 of the cam member 80 and the cam contact surface 41 of the first slider 40 (abutting the cam member 80 and the first slider 40) in the vicinity of the cam surface 81 of the cam member 80. The foreign matter (for example, the original document) is disposed in front of the contact portion and is on the contact portion side between the cam contact surface 41 of the first slider 40 and the cam surface 81 of the cam member 80 from the outside of the first slider 40 and the cam member 80. Etc.) from the closed state to the open state of the second wing member, for example, an original document placed on the upper surface of the main body 2 has a cam contact surface 41 of the first slider 40 and a cam member 80. It is possible to surely prevent oil from adhering to the original contacting side with the cam surface 81 and adhering to the original.
Further, the oil fence 90 is configured so as to shield the space between the cam contact surface 41 of the first slider 40 and the cam surface 81 of the cam member 80 from the outside so as not to be visible from the outside. Therefore, the cam surface 81 of the cam member 80 is not exposed as much as possible, and it is possible to suppress the oil from splashing outward from the cam member 80 side.
Further, since the oil fence 90 is supported by the first slider 40 and the cam member 80 and is configured to be movable along with the rotating operation of the intermediate member 20, foreign matter is prevented from contacting the cam contact surface 41 of the first slider 40. It is possible to more reliably prevent the cam member 80 from entering the contact portion side with the cam surface 81.

  The configuration in which the oil fence 90 is supported by the first slider 40 and the cam member 80 is not limited to such a configuration. For example, the first arm 92 of the oil fence 90 has a guide groove without a convex portion, and the first slider 40 has a convex portion without a first guiding portion 43, whereby the oil fence 90 is It may be configured to be supported by the first slider 40. Further, for example, the second arm 93 of the oil fence 90 has a guide groove without a convex portion, and the cam member 80 has a convex portion without a second guide portion 82, so that the oil fence 90 is Alternatively, the cam member 80 may be supported.

As shown in FIGS. 9 to 11 or FIGS. 14 to 18, the intermediate member 20 includes a convex portion 23.
The convex portion 23 comes into contact with the first slider 40, and causes the second wing member to rotate and the first slider 40 to move in the front-rear direction, thereby causing sliding resistance (damper effect). The convex portion 23 is provided in the left and right center of the inner surface (lower surface) of the top plate 21 of the intermediate member 20 and at the rear portion, and projects downward from the top plate 21 of the intermediate member and thus the top plate of the first slider 40. Abut. The convex portion 23 forms a pair of left and right cuts along the front-rear direction in the left-right center and rear portion of the top plate 21 of the intermediate member 20, and the portion is formed from the outer (upper) side of the top plate 21 to the inner (lower) side. ) Is slightly pushed in. The outside of the portion of the intermediate member 20 where the convex portion 23 is formed is formed in a concave shape, and has substantially the same shape as the concave portion 23 in a plan view.

  The convex portion 23 of the intermediate member 20 has a portion in which the width in the rear left-right direction is wider than the width in the front left-right direction. In a plan view, the convex portion 23 has a relatively narrow width in the left-right direction in the front portion, has a width that widens in the left-right direction toward the rear in the central portion, and has the same width as the rear end portion in the central portion in the rear portion. It In the convex portion 23, the central portion or the rear portion has a larger portion (left and right width) in contact with the first slide member than the front portion. The convex portion 23 of the intermediate member 20 has a length in the direction orthogonal to the moving direction of the cam member 41 in the direction side portion (front portion of the convex portion 23) where the first slider 40 is separated from the cam member 80. A length of a side portion (a central portion and a rear portion of the convex portion 23) where the slider 40 is separated from the cam member 80 is long in a direction orthogonal to the moving direction of the cam member 41.

When the second wing member is in the closed state, the front end portion of the protrusion 23 of the intermediate member 20 contacts the first slider 40, and the other portions of the protrusion 23 do not contact the first slider 40.
When the second wing member pivots in the opening direction from the closed state, the first slider 40 moves rearward (rearward of the intermediate member 20) (the cam contact surface 41 of the first slider 40 becomes the cam surface 81 of the cam member 80). (Moving in the direction of approaching), the convex portion 23 (the front portion of the convex portion 23) of the intermediate member 20 contacts the first slider 40. Then, as the first slider 40 moves further rearward, the area of the portion where the convex portion 23 of the intermediate member 20 contacts the first slider 40 gradually increases. When the first slider 40 moves rearward and comes into contact with the central portion of the convex portion 23 of the intermediate member 20 as well, the central portion of the convex portion 23 has a lateral width (in the convex portion 23) as compared with the front portion. Since the width in the direction orthogonal to the moving direction of the first slider 40) is configured to be large, the sliding resistance of the first slider 40 caused by the contact of the convex portion 23 becomes larger.

Thus, the width of the convex portion 23 of the intermediate member 20 in the front direction (the portion of the convex portion 23 in the direction in which the first slider 40 is separated from the cam member 80) in the left-right direction (the length in the direction orthogonal to the moving direction of the cam member 41). The width (the length in the direction orthogonal to the moving direction of the cam member 41) of the rear portion (the portion of the convex portion 23 in the direction in which the first slider 40 is separated from the cam member 80) is wider than With this structure, as the second wing member pivots in the opening direction from the closed state to increase the pivot angle θ and the first slider 40 moves rearward, the convex portion 23 of the intermediate member 20 and the first slider 40 move. It is possible to increase the sliding resistance with the top plate.
Therefore, according to the hinge 100, a damper effect can be generated in addition to the damper 62 (a configuration other than the damper 62), and the damper effect increases as the second wing member rotates in the opening direction. Can be easily realized.

Next, another embodiment of the convex portion 23 of the intermediate member 20 will be described.
As shown in FIG. 19, the convex portion 23 is formed in a substantially V shape in a plan view, and is arranged such that the lower portion of the V shape faces the front, and the rear width is larger than the front left / right direction width. It is also possible to adopt a configuration having a widely configured portion.
As shown in FIG. 20, the convex portion 23 may be formed in a substantially truncated cone shape in a plan view, and may have a portion in which a rear width is wider than a front width in the left-right direction.
As shown in FIG. 21, the convex portion 23 is formed such that a pair of circular lengths protrudes forward from the left and right front ends of a substantially quadrangular shape in a plan view, and the width of the rear is wider than the width of the front in the left-right direction. It is also possible to adopt a configuration having a configured portion.
As shown in FIG. 22, the convex portion 23 is formed such that the corners of the front left portion and the front right portion, each of which has a substantially quadrangular shape in plan view, are notched, and the width of the rear portion is larger than the width of the front left and right direction. It is also possible to adopt a configuration having a portion that is widely configured.
As shown in FIG. 23, the convex portion 23 has a front end portion having a substantially quadrangular shape in plan view formed in a semicircular shape, and has a portion in which a rear width is wider than a front left and right direction width. Can also be
As shown in FIG. 24, the convex portion 23 is formed in a substantially M shape in a plan view, is arranged such that the upper portion of the M shape faces the front, and the width of the rear side is larger than the width of the front left and right direction. It is also possible to adopt a configuration having a widely configured portion.

In addition, the convex portion 23 of the intermediate member 20 may be configured to have a portion in which the width in the front left-right direction is wider than the width in the rear left-right direction, depending on the specifications of the hinge 100. It is also possible to have a configuration in which the width in the front left-right direction and the width in the rear left-right direction are wider than the width in the left-right direction of the front-rear center portion.
For example, as shown in FIG. 25, the convex portion 23 is formed in a substantially trapezoidal shape in a plan view, and is configured such that the width in the front left-right direction and the width in the rear left-right direction are wider than the width in the left-right direction of the front-rear center portion. It is also possible to adopt a configuration having a part that
Further, for example, as shown in FIG. 26, the convex portion 23 is formed in an oval shape in plan view having a semicircle at each of the front end portion and the rear end portion, and is formed in front of the width in the left-right direction of the front-rear center portion. It is also possible to adopt a configuration having a portion in which the width in the left-right direction and the width in the rear left-right direction are wide.

Further, even if the second wing member rotates in the opening direction from the closed state and the first slider 40 moves rearward, the sliding resistance between the convex portion 23 of the intermediate member 20 and the top plate of the first slider 40 is reduced. When it is desired to make it constant, as shown in FIG. 27, the convex portion 23 of the intermediate member 20 may be formed in a substantially rectangular shape in plan view with the longitudinal direction in the front-rear direction.
In addition, the convex portion 23 of the intermediate member 20 may be formed of an aggregate in which a plurality of point-shaped convex portions are arranged, or an aggregate in which a plurality of left and right protrusions are arranged in the front-rear direction. You can also

DESCRIPTION OF SYMBOLS 1 Multifunction machine 2 Main body 3 Original pressing plate 10 Lower fixing member 20 Intermediate member 23 Convex portion 30 Upper fixing member 40 First slider 50 Second slider 80 Cam member 90 Oil fence 100 Hinge

Claims (1)

A first wing member fixed to the first connecting object,
A cam member fixed to the first wing member,
A second wing member fixed to the second connection target and rotatably connected to the first wing member via a rotation shaft;
A slide member housed in the second wing member and movable in a direction approaching the cam member and a direction separating from the cam member;
An urging member that brings the slide member into contact with the cam member by urging the slide member in a direction approaching the cam member,
The second wing member is connected to the first wing member rotatably via a rotation shaft, and the second wing member is fixed to the second connection target and is connected to the intermediate member via a rotation shaft. And a fixing member that is rotatably connected to each other,
The intermediate member includes a convex portion that abuts on the slide member to generate sliding resistance when the slide member moves,
The convex portion has a portion in which a width of a direction side portion where the slide member approaches the cam member is wider than a width of a direction side portion where the slide member is separated from the cam member.
Hinge.