JP7015530B2 - Hinge - Google Patents

Description

The present invention relates to a hinge that connects a second connection object to a first connection object so that it can be opened and closed, such as connecting a manuscript crimping plate of the office equipment to the main body of the office equipment so that it can be opened and closed.

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. .. 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.

As an instrument for connecting the main body of the office equipment and the document crimping plate, a first wing member, a second wing member rotatably connected to the first wing member via a rotation shaft, and a damper are provided. Hinge is known (see Patent Document 1).
In the hinge, for example, the rotation speed when the second wing member (manuscript crimping plate) is rotated in the closing direction is attenuated by the damper. The hinge damper uses a spring, oil, or the like to generate a damper effect (damping effect).

Japanese Unexamined Patent Publication No. 2017-11135

However, since the hinge is provided with a damper using a spring or oil, it has a relatively expensive configuration.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hinge capable of producing a damper effect at a relatively low cost without using a spring or oil.

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

That is, in claim 1, the first wing member fixed to the first connection object and the first wing member fixed to the second connection object and rotatably connected to the first wing member via a rotation shaft. The second wing member transitions between the open state and the closed state with respect to the first wing member, and the second wing member can be moved in a direction approaching the second wing member and a direction away from the second wing member. The first slide member and the first wing member are arranged in the slide member accommodating chamber, and are in contact with the inner surface of the slide member accommodating chamber in a direction of approaching the second wing member and separated from the second wing member. The first slide member moves in a direction away from the second wing member when the second wing member is changed from the open state to the closed state. The second slide member moves in a direction away from the second wing member so as to be pushed by the first slide member.

In claim 2, the first slide member includes an insertion portion, the second slide member has an insertion hole into which the insertion portion of the first slide member can be press-fitted, and the second wing member is opened. In the closed state, the insertion portion of the first slide member is elastically deformed by being press-fitted into the insertion hole and moves in a direction away from the second wing member. It increases the frictional force with the inner surface.

In claim 3, an intermediate member is provided which is rotatably connected to the first slide member via a rotation shaft and rotatably connected to the second wing member via a rotation shaft. When the second wing member is changed from the open state to the closed state, the intermediate member is moved in a direction away from the second wing member by pushing the first slide member.

As the effect of the present invention, the following effects are exhibited.
That is, according to the present invention, the damper effect can be generated at a relatively low cost without using a spring or oil.

The side view which shows the multifunction device provided with the hinge which concerns on embodiment of this invention. A perspective view also showing a hinge. Similarly, a side view showing the open state of the hinge. Similarly, a side sectional view showing an open state of the hinge. Front view also showing the first slider of the hinge. A perspective view showing the first slider and the second slider of the hinge as well. A side sectional view showing the closing operation of the hinge as well. A side sectional view showing the closing operation of the hinge as well. Similarly, a side sectional view showing a closed state of the hinge. A side sectional view showing the opening operation of the hinge as well. A side sectional view showing the opening operation of the hinge as well. Similarly, a side sectional view showing an open state of the hinge.

Hereinafter, the multifunction device 1, which is an embodiment of the office equipment, 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 according to the first embodiment of the present invention, but the multifunction device 1 may be configured to include the hinge according to another embodiment described later. Is.

The main body 2 is an embodiment of the first connected 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 the document placed on the upper surface of the main body 2 (generates the 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 manuscript crimping plate 3 is an embodiment of the second connecting object 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 image information according to the above, (d) the scanner, a fax machine, and a multifunction device having a function as a copier.

The hinges according to each embodiment described in detail below are used for connecting the original crimping plate 3 to the main body 2 of the multifunction device 1 so as to be openable / closable (rotatably), but the hinge according to the present invention is used. Not limited to this.
That is, the hinge according to the present invention can be widely applied to "application for connecting the other member (second connection object) to one member (first connection object) of the two members so as to be openable and closable". be.
Specific examples of other uses to which the hinge according to the present invention is applied include a use in which a hatch (lid) for exchanging a toner cartridge is connected to the main body of office equipment so as to be openable and closable, and a bonnet can be opened and closed in the vehicle body of an automobile. The use of connecting to the toilet, the use of connecting the toilet seat to the toilet so that it can be opened and closed, and the like can be mentioned.

In the following description, the rotation angle θ (more precisely, the main body) of the original crimping plate 3 when the original crimping plate 3 is closed (when the lower surface of the original crimping 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 °” so that 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). In the present embodiment, the rotation angle θ of the document crimping plate 3 with respect to the main body 2 also coincides with the rotation angle of the second wing member described later with respect to the first wing member from the closed state. 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 12.
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.
As shown in FIGS. 2 to 4, the hinge 100 includes a lower fixing member 10, an intermediate member 20, an upper fixing member 30, a first slider 40, a second slider 50, a first rotating pin 71, and a second rotating pin 72. , A third rotation pin 73 is provided.
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 °), 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. Further, in the following, the white arrow shown in the figure will be described as indicating the rotation direction of the upper fixing member 30.

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 device 1.
The lower fixing member 10 includes a bottom portion 11, a side portion 12, and a storage chamber 13, and is configured in a substantially cylindrical shape in which an upper end portion and an upper front portion are opened.
Through holes for inserting the first rotation pin 71 are opened on both sides of the upper portion of the side portion 12.
The storage chamber 13 is an embodiment of the slide member storage chamber according to the present invention. The storage chamber 13 is composed of a space inside the lower fixing member 10 (a space surrounded by the bottom portion 11 and the side portion 12), and the first slider 40 and the second slider 50 are accommodated. The inner surface of the side wall of the accommodation chamber 13 is configured to be parallel to the axial direction. The storage chamber 13 is provided by applying or filling grease as a lubricant.

The intermediate member 20 is an embodiment of the intermediate member according to the present invention.
The intermediate member 20 includes a pair of side plate portions 21 and 21 and a connecting portion 22.
The side plate portions 21 and 21 are oval flat plate-shaped members, and are arranged on the left and right sides of the connecting portion 22. A through hole for inserting the second rotation pin 72 is opened on the lower end side of the side plate portion 21, and a through hole for inserting the third rotation pin 73 is opened on the upper end side of the side plate portion 21. Will be done.
The connecting portion 22 is a flat plate-shaped member, and its left and right ends are fixed to the inner surfaces of the side plate portions 21 and 21 and are connected to the side plate portions 21 and 21.
The intermediate member 20 is rotatably connected to the first slider 40 via the second rotation pin 72.
It is rotatably connected to the upper fixing member 30 via the third rotating pin 73.

The upper fixing member 30 is an embodiment of the second wing member according to the present invention. The upper fixing member 30 is fixed to the original crimping plate 3 of the multifunction device 1. A through hole for inserting the first rotation pin 71 is opened in the rear portion of the upper fixing member 30. A through hole for inserting the third rotation pin 73 is opened in the lower portion of the upper fixing member 30. The upper fixing member 30 is rotatably connected to the lower fixing member 10 via the first rotating pin 71.

The first slider 40 is an embodiment of the first slide member according to the present invention. The first slider 40 of this embodiment is made of a resin material.
As shown in FIGS. 4 to 6, the first slider 40 is arranged in the accommodation chamber 13 of the lower fixing member 10 (inside the lower fixing member 10), and can move in the axial direction (vertical direction) of the lower fixing member 10. It is composed of. The first slider 40 is configured to be movable in a direction toward or away from the upper fixing member 30. The first slider 40 is configured to be movable in a direction toward or away from the bottom portion 11 of the lower fixing member 10.
The first slider 40 includes a mounting portion 41, an insertion portion 42, a first overhanging portion 43, a second overhanging portion 44, and a hole portion 45.

A through hole for inserting the second rotation pin 72 is opened in the mounting portion 41.
The insertion portion 42 is arranged below the mounting portion 41 and is provided so as to be connected to the mounting portion 41. The insertion portion 42 has a rod shape centered on the vertical direction, and is formed in a truncated cone shape whose diameter is reduced toward the lower side (tip side).
The first overhanging portion 43 is provided at the boundary portion between the mounting portion 41 and the inserting portion 42, and is formed in a brim shape by extending laterally. The left and right ends of the first overhanging portion 43 are inclined downward.
The second overhanging portion 44 is provided at the lower end portion (tip portion) of the insertion portion 42, and overhangs sideways to form a brim shape.
The hole 45 is formed along the axial direction (vertical direction) of the insertion portion 42 and penetrates from the lower end of the insertion portion 42 to the through hole of the mounting portion 41.

The second slider 50 is an embodiment of the second slide member according to the present invention. The second slider 50 of this embodiment is made of a resin material.
The second slider 50 is a columnar member formed by combining a pair of slider pieces 50a and 50a, and is arranged in the accommodation chamber 13 (inside the lower fixing member 10) of the lower fixing member 10. The slider piece 50a is a member obtained by dividing a columnar member into two in the axial direction.
The side surface of the second slider 50 is configured in parallel with the inner surface of the side wall of the accommodation chamber 13. The second slider 50 is configured to be movable (slable) in the axial direction (vertical direction) of the lower fixing member 10 in a state where the outer surface thereof and the inner surface of the side wall of the accommodation chamber 13 of the lower fixing member 10 are in contact with each other. Will be done. The second slider 50 is configured to be movable in a direction toward or away from the upper fixing member 30. The second slider 50 is configured to be movable in a direction toward or away from the bottom portion 11 of the lower fixing member 10. The vertical length of the second slider 50 is shorter than the vertical length of the insertion portion 42 of the first slider 40.
The second slider 50 includes an insertion hole 51.

The insertion hole 51 penetrates from the upper surface to the lower surface of the insertion hole 51, and is configured so that the insertion portion 42 of the first slider 40 can be press-fitted. The insertion hole 51 is formed in a truncated cone shape whose diameter is reduced toward the lower side (tip side). The tilt angle of the insertion hole 51 is formed so as to coincide with the tilt angle of the outer surface of the insertion portion 42 of the first slider 40.
The first slider 40 can move (sliding) in the axial direction (vertical direction) of the lower fixing member 10 in a state where the outer surface of the outer surface of the insertion portion 42 and the inner surface of the insertion hole 51 of the second slider 50 are in contact with each other. ).
The second slider 50 is made of a softer material than the first slider 40, and as the first slider 40 moves downward with respect to the second slider 50 and the insertion portion 42 is press-fitted into the insertion hole 51, the second slider 50 is formed. It is slightly elastically deformed so as to expand outward. Therefore, the pressing force of the outer surface of the second slider 50 against the inner surface of the accommodation chamber 13 of the lower fixing member 10 increases, and the accommodation chamber of the lower fixing member 10 when the second slider 50 moves with respect to the lower fixing member 10. The frictional force (friction resistance) between the inner surface of 13 and the outer surface of the second slider 50 increases.

When assembling the first slider 40 and the second slider 50, insert the insertion portion 42 of the first slider 40 so that the insides of the slider pieces 50a and 50a of the second slider 50 face each other. And fix the slider pieces 50a and 50a to each other (see FIG. 6).
Further, when assembling the first slider 40 and the second slider 50, the insertion portion 42 of the first slider 40 is inserted through the opening above the insertion hole 51 of the second slider 50, and the insertion portion 42 below the insertion hole 51 is inserted. It is also possible to make the tip of the insertion portion 42 project from the opening and fix the second overhanging portion 44 to the insertion portion 42.

The first rotating pin 71 is an embodiment of the "rotating shaft of the second wing member with respect to the first wing member (rotating shaft rotatably connecting the second wing member to the first wing member)" according to the present invention. It is a form and is a member having a substantially cylindrical shape.

The second rotating pin 72 is an embodiment of the "rotating shaft of the intermediate member with respect to the first slide member (rotating shaft that rotatably connects the intermediate member to the first slide member)" according to the present invention. , It is a member with a substantially cylindrical shape.

The third rotating pin 73 is an embodiment of the "rotating shaft of an intermediate member with respect to the second wing member (rotating shaft for rotatably connecting the intermediate member to the second wing member)" according to the present invention. , It is a member having a substantially cylindrical shape.

In the present embodiment, the state in which the upper fixing member 30 is closest to the lower fixing member 10 is defined as the “closed state” of the upper fixing member 30 (the state in which the document crimping 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 upper fixing member 30 with respect to the lower fixing member 10 from the closed state is 0 °. Further, the state in which the upper fixing member 30 is most distant from the lower fixing member 10 is defined as the "open state" of the upper fixing member 30. The open state refers to a state in which the document crimping plate 3 is open with respect to the main body 2 and the rotation angle θ is 45 °.

In the hinge 100, when the upper fixing member 30 is changed from the open state to the closed state, a damper effect is generated to attenuate the falling speed (rotation speed in the closing direction) of the upper fixing member 30.
Hereinafter, the operation of changing the upper fixing member 30 from the open state to the closed state will be described.

First, as shown in FIG. 4, in the open state (rotation angle θ = 45 °) of the upper fixing member 30, the upper surface of the second overhanging portion 44 of the first slider 40 and the lower surface of the second slider 50 come into contact with each other. The second slider 50 is pulled upward by the first slider 40.
In such a state, the pressure of the mounting portion 42 of the first slider 40 with respect to the insertion hole 51 of the second slider 50 during the rotation angle θ of the upper fixing member 30 (the rotation angle θ is from 0 ° to 45 °). The input is the weakest, and the frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50 is the weakest.

Next, the operation in the first region where the rotation angle θ is from 45 ° to a predetermined angle φ1 by rotating the upper fixing member 30 from the open state to the closing direction will be described.
The predetermined angle φ1 is set to 30 ° (see FIG. 7). As shown in FIGS. 7 to 8, when the upper fixing member 30 is rotated in the closing direction, the intermediate member 20 is rotated in the direction opposite to the rotation direction of the upper fixing member 30 so as to be pushed by the intermediate member 20. The first slider 40 moves downward.
At this time, when the insertion portion 42 of the first slider 40 is press-fitted into the insertion hole 51 of the second slider 50 and the rotation angle θ becomes a predetermined angle φ1, the first overhanging portion 43 of the first slider 40 becomes the first. The operation of the insertion portion 42 of the first slider 40 being press-fitted into the insertion hole 51 of the second slider 50 is completed in a state of being in contact with the upper surface of the second slider 50.
In the first region where the rotation angle θ is from 45 ° to a predetermined angle φ1, at any rotation angle θ, the pressure input of the mounting portion 42 of the first slider 40 to the insertion hole 51 of the second slider 50 The frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50 is larger, and the second slider 50 does not move downward.
When the rotation angle θ is a predetermined angle φ1, the pressure input of the mounting portion 42 of the first slider 40 to the insertion hole 51 of the second slider 50 is the strongest, and the second slider 50 is elastically deformed. The frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50 is the strongest.

Next, the operation in the second region where the rotation angle θ is from a predetermined angle φ1 to 0 ° by further rotating the upper fixing member 30 in the closing direction will be described.
As shown in FIGS. 8 to 9, when the upper fixing member 30 is further rotated in the closing direction, the intermediate member 20 is further rotated in the direction opposite to the rotation direction of the upper fixing member 30 and is pushed by the intermediate member 20. The first slider 40 moves downward. At this time, the second slider 50 is in a state of being caught by the first overhanging portion 43 of the first slider 40, and the second slider 50 is lowered together with the first slider 40 so as to be pushed by the first slider 40. The upper fixing member 30 is closed (rotation angle θ = 0 °).
In the second region where the rotation angle θ is from a predetermined angle φ1 to 0 °, the insertion portion 42 of the first slider 40 is press-fitted into the insertion hole 51 of the second slider 50, and the lower fixing member 10 The second slider 50 moves downward with the outer surface of the second slider 50 in contact with the inner surface of the accommodation chamber 13.
As described above, the hinge 100 performs an operation of changing the upper fixing member 30 from the open state to the closed state.

It is also possible to set the "open state" of the upper fixing member 30 to an angle other than 0 ° for the rotation angle θ. It is also possible to set the "open state" of the upper fixing member 30 to an angle other than the rotation angle θ of 45 °. It is also possible to set the predetermined angle φ1 to an angle other than 30 °.

As described above, in the hinge 100, when the upper fixing member 30 is changed from the open state to the closed state, the second slider is in a state where the outer surface of the second slider 50 is in contact with the inner surface of the accommodation chamber 13 of the lower fixing member 10. Since the 50 moves downward, a damper effect is generated by the frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50, and the falling speed of the upper fixing member 30 (second connecting object) is generated. Can be attenuated.
Further, as described above, since the hinge 100 can be configured to generate a damper effect without using a spring or oil, it is possible to realize a hinge 100 that produces a damper effect at a relatively low cost.

Further, as described above, in the hinge 100, when the upper fixing member 30 is changed from the open state to the closed state, the insertion portion 42 of the first slider 40 is press-fitted into the insertion hole 51 of the second slider 50. The frictional force of the lower fixing member 10 with the inner surface of the accommodation chamber 13 when the two sliders 50 are elastically deformed and moved downward is increased. Therefore, the damper effect when the upper fixing member 30 is changed from the open state to the closed state can be more reliably generated.

Further, as described above, in the hinge 100, in the first region where the upper fixing member 30 is rotated from the open state to the closing direction and the rotation angle θ is from 45 ° to a predetermined angle φ1, the second slider 50 is downward. Since it does not move to, the damper effect does not occur due to the frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50, and the insertion portion 42 of the first slider 40 inserts the second slider 50. Since it is press-fitted into the hole 51, a damper effect is generated by the press-fitting. Further, in the second region where the upper fixing member 30 is further rotated in the closing direction and the rotation angle θ is from a predetermined angle φ1 to 0 °, the second slider 50 moves downward, so that the lower fixing member 10 A damper effect is generated by the frictional force between the inner surface of the accommodation chamber 13 and the outer surface of the second slider 50, and the insertion portion 42 of the first slider 40 has been press-fitted into the insertion hole 51 of the second slider 50. Therefore, the damper effect does not occur due to the pressure input. Therefore, when the upper fixing member 30 is rotated in the closing direction, the magnitude of the damper effect is set to be different depending on whether the rotation angle θ is relatively large or small (for example, the rotation angle θ is set). When it is in a relatively large state, the damper effect can be set to be relatively small).

Further, as described above, in the hinge 100, the intermediate member 20 is moved downward together with the first slider 40 by pushing the first slider 40 when the upper fixing member 30 is changed from the open state to the closed state. Since the slider 50 is moved downward, it is possible to realize a structure that produces a damper effect without using a spring or oil with a simple structure.

Hereinafter, the operation of changing the upper fixing member 30 from the closed state to the open state will be described.

First, the operation in the second region where the rotation angle θ is from 0 ° to a predetermined angle φ1 by rotating the upper fixing member 30 in the opening direction will be described.
As shown in FIGS. 9 to 10, when the upper fixing member 30 is rotated in the opening direction from the closed state (rotation angle θ = 0 °), the intermediate member 20 rotates the upper fixing member 30. The first slider 40 moves upward so as to rotate in the direction opposite to the direction and be pulled up by the intermediate member 20. At this time, the state in which the first overhanging portion 43 of the first slider 40 is in contact with the upper surface of the second slider 50 is eliminated, and the pressure input of the mounting portion 42 of the first slider 40 to the insertion hole 51 of the second slider 50 is eliminated. Is weakened, and the state in which the insertion portion 42 of the first slider 40 is press-fitted into the insertion hole 51 of the second slider 50 is eliminated. At this time, the second slider 50 does not move upward due to the frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50.

Then, as shown in FIG. 11, the first slider 40 moves further upward, and the upper surface of the second overhanging portion 44 of the first slider 40 and the lower surface of the second slider 50 are in contact with each other. After the upper surface of the second overhanging portion 44 of the first slider 40 and the lower surface of the second slider 50 come into contact with each other, the second overhanging portion 44 makes it appear as if the second slider 50 is hooked on the first slider. The second slider 50 moves upward together with the first slider 40 so as to be pulled up by 40. At this time, since the state in which the insertion portion 42 of the first slider 40 is press-fitted into the insertion hole 51 of the second slider 50 is eliminated (the pressure input of the mounting portion 42 to the insertion hole 51 is weak), the second The slider 50 is in the original state (the state in which the state of being deformed so as to expand outward is eliminated). Therefore, the frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50 is weaker than that when the upper fixing member 30 is rotated in the closing direction.

Next, the operation in the first region where the rotation angle θ is from a predetermined angle φ1 to 45 ° by further rotating the upper fixing member 30 in the opening direction will be described.
When the upper fixing member 30 is further rotated in the opening direction, the intermediate member 20 is further rotated in the direction opposite to the rotation direction of the upper fixing member 30, and the second slider 50 moves upward together with the first slider 40. The upper fixing member 30 is opened (rotation angle θ = 45 °) (see FIG. 4). At this time, similarly to the above, the state in which the insertion portion 42 of the first slider 40 is press-fitted into the insertion hole 51 of the second slider 50 is eliminated. Therefore, the frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50 is weaker than that when the upper fixing member 30 is rotated in the closing direction.
As described above, the hinge 100 performs an operation of changing the upper fixing member 30 from the closed state to the open state.

As described above, in the hinge 100, when the upper fixing member 30 is opened from the closed state, the state in which the insertion portion 42 of the first slider 40 is press-fitted into the insertion hole 51 of the second slider 50 is eliminated. Since the second slider 50 moves upward in the original state (the state in which the state of being deformed to expand outward is eliminated), the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the second slider The frictional force with the outer surface of the 50 is weaker than that when the upper fixing member 30 is rotated in the closing direction. Therefore, when the upper fixing member 30 is closed, a damper effect is generated and the falling speed of the upper fixing member 30 (second connecting object) can be attenuated, and when the upper fixing member 30 is opened, the damper effect is not generated. It can be configured.

In the hinge 100, the first slider 40 does not move downward and the insertion portion 42 is press-fitted into the insertion hole 51 of the second slider 50, and the second slider 50 is elastically deformed so as to expand outward. It is also possible to have no configuration. In this configuration, the frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50 when the second slider 50 moves with respect to the lower fixing member 10 is changed by the rotation angle θ. It is configured to be constant.
The operation of changing the upper fixing member 30 from the open state to the closed state or the operation of changing the upper fixing member 30 from the closed state to the open state when configured in this manner will be described.
Hereinafter, the operation of changing the upper fixing member 30 from the open state to the closed state will be described.

First, the operation in the first region where the rotation angle θ is from 45 ° to a predetermined angle φ1 by rotating the upper fixing member 30 from the open state to the closing direction will be described.
As shown in FIG. 7, when the upper fixing member 30 is rotated in the closing direction, the intermediate member 20 is rotated in the direction opposite to the rotation direction of the upper fixing member 30 and is pushed by the intermediate member 20. The slider 40 moves downward.
At this time, when the insertion portion 42 of the first slider 40 is inserted into the insertion hole 51 of the second slider 50 and the rotation angle θ becomes a predetermined angle φ1, the first overhanging portion 43 of the first slider 40 becomes the first. The state of contact with the upper surface of the second slider 50 is reached, and the operation of inserting the insertion portion 42 of the first slider 40 into the insertion hole 51 of the second slider 50 is completed.
In the first region where the rotation angle θ is from 45 ° to a predetermined angle φ1, the second slider 50 does not move downward at any rotation angle θ.

Next, the operation in the second region where the rotation angle θ is from a predetermined angle φ1 to 0 ° by further rotating the upper fixing member 30 in the closing direction will be described.
As shown in FIGS. 8 to 9, when the upper fixing member 30 is further rotated in the closing direction, the intermediate member 20 is further rotated in the direction opposite to the rotation direction of the upper fixing member 30 and is pushed by the intermediate member 20. The first slider 40 moves downward. At this time, the second slider 50 is in a state of being caught by the first overhanging portion 43 of the first slider 40, and the second slider 50 is lowered together with the first slider 40 so as to be pushed by the first slider 40. The upper fixing member 30 is closed (rotation angle θ = 0 °).
As described above, the hinge 100 performs an operation of changing the upper fixing member 30 from the open state to the closed state.

Hereinafter, the operation of changing the upper fixing member 30 from the closed state to the open state will be described.

First, the operation in the second region where the rotation angle θ is from 0 ° to a predetermined angle φ1 by rotating the upper fixing member 30 in the opening direction will be described.
As shown in FIGS. 9 to 10, when the upper fixing member 30 is rotated in the opening direction from the closed state (rotation angle θ = 0 °), the intermediate member 20 rotates the upper fixing member 30. The first slider 40 moves upward so as to rotate in the direction opposite to the direction and be pulled up by the intermediate member 20. At this time, the second slider 50 does not move upward due to the frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50.

Then, as shown in FIG. 11, the first slider 40 moves further upward, and the upper surface of the second overhanging portion 44 of the first slider 40 and the lower surface of the second slider 50 are in contact with each other. After the upper surface of the second overhanging portion 44 of the first slider 40 and the lower surface of the second slider 50 come into contact with each other, the second overhanging portion 44 makes it appear as if the second slider 50 is hooked on the first slider. The second slider 50 moves upward together with the first slider 40 so as to be pulled up by 40.

Next, the operation in the first region where the rotation angle θ is from a predetermined angle φ1 to 45 ° by further rotating the upper fixing member 30 in the opening direction will be described.
When the upper fixing member 30 is further rotated in the opening direction, the intermediate member 20 is further rotated in the direction opposite to the rotation direction of the upper fixing member 30, and the second slider 50 moves upward together with the first slider 40. The upper fixing member 30 is opened (rotation angle θ = 45 °) (see FIG. 4).
As described above, the hinge 100 performs an operation of changing the upper fixing member 30 from the closed state to the open state.

In this configuration, the insertion portion 42 of the first slider 40 may be formed in a columnar shape rather than in a truncated cone shape. Further, in this configuration, the insertion hole 51 of the second slider 50 may be formed in a columnar shape instead of being formed in a truncated cone shape.

Further, the hinge 100 may be configured to be press-fitted into the accommodation chamber 13 of the lower fixing member 10 as the second slider 50 moves downward when the upper fixing member 30 is changed from the open state to the closed state. ..
In this configuration, as shown in FIG. 12, the inner surface of the side wall of the accommodation chamber 13 of the lower fixing member 10 is formed of an inclined surface and is formed in a truncated cone shape whose diameter is reduced as it goes downward, and the second slider 50 The sides of the are formed in a truncated cone shape, which is composed of inclined surfaces and whose diameter is reduced as it goes downward.

In the hinge 100 configured in this way, the upper fixing member 30 is rotated from the open state to the closing direction, and the first slider 40 is inserted in the first region where the rotation angle θ is from 45 ° to a predetermined angle φ1. The portion 42 is press-fitted into the insertion hole 51 of the second slider 50, and the second slider 50 is in a state of being deformed so as to expand outward.

Then, the upper fixing member 30 is further rotated in the closing direction, and in the second region where the rotation angle θ is from a predetermined angle φ1 to 0 °, the second slider 50 is pushed by the first slider 40. It moves downward together with the first slider 40 and is press-fitted into the accommodation chamber 13 of the lower fixing member 10.

Therefore, as the rotation angle θ of the upper fixing member 30 becomes smaller, the frictional force between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50 increases. Therefore, without using a spring or oil, the damper effect can be increased as the rotation angle θ of the upper fixing member 30 becomes smaller.

Further, when the upper fixing member 30 is rotated from the closed state to the opening direction, the state in which the insertion portion 42 of the first slider 40 is press-fitted into the insertion hole 51 of the second slider 50 is eliminated, and then the second slider 50 is released. Is eliminated from the state of being press-fitted into the accommodation chamber 13 of the lower fixing member 10.
Therefore, when the upper fixing member 30 is rotated in the opening direction, no frictional force is generated between the inner surface of the accommodation chamber 13 of the lower fixing member 10 and the outer surface of the second slider 50, and the upper fixing member 30 is opened in the opening direction. The operation of rotating can be performed more smoothly.

1 Multifunction device 2 Main body 3 Original crimping plate 10 Lower fixing member 20 Intermediate member 30 Upper fixing member 40 First slider 50 Second slider 100 Hinge

Claims (3)

The first wing member fixed to the first connection object,
A second that is fixed to the second connecting object and rotatably connected to the first wing member via a rotation shaft, and transitions between an open state and a closed state with respect to the first wing member. Wing members and
A first slide member that can move in a direction approaching the second wing member and a direction away from the second wing member.
It is arranged in the slide member accommodating chamber of the first wing member, and can move in a direction of approaching the second wing member and a direction away from the second wing member in a state of being in contact with the inner surface of the slide member accommodating chamber. Equipped with a second slide member,
When the second wing member is changed from the open state to the closed state, the first slide member moves in a direction away from the second wing member, and the second slide member is pushed by the first slide member. A hinge that moves in a direction away from the second wing member. The first slide member includes an insertion portion and has an insertion portion.
The second slide member is provided with an insertion hole into which the insertion portion of the first slide member can be press-fitted, and when the second wing member is changed from the open state to the closed state, the insertion portion of the first slide member is said to be. The hinge according to claim 1, wherein the hinge is elastically deformed by being press-fitted into the insertion hole to increase the frictional force with the inner surface of the slide member accommodating chamber when moving in a direction away from the second wing member. It comprises an intermediate member that is rotatably connected to the first slide member via a rotation shaft and rotatably connected to the second wing member via a rotation shaft.
The first or second aspect of the present invention, wherein the intermediate member is moved in a direction away from the second wing member by pushing the first slide member when the second wing member is changed from the open state to the closed state. The hinge described.

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