JP7367984B2 - Hinges and electronic devices equipped with hinges - Google Patents

Description

The present invention relates to a hinge that connects a second connection object to a first connection object in an openable and closable manner, and an electronic device equipped with the hinge.

BACKGROUND ART Hitherto, the technology of a hinge that connects a second connection object to a first connection object in an openable and closable manner is known.
The hinge includes a first wing member that includes a housing portion and is fixed to the first connection object, and a cam portion that is fixed to the second connection object and rotates on the first wing member via a rotation shaft. a second wing member movably connected; a slider having an abutment portion and movable in a direction toward or away from a cam portion of the second wing member while being housed in a housing portion of the first wing member; There is a device including a biasing member that causes the contact portion of the slider to contact the cam portion of the second wing member by biasing it in a direction approaching the cam portion of the second wing member (see Patent Document 1). .
The hinge is provided in, for example, a multifunction device, and is used to connect a document pressure plate to the main body of the multifunction device in an openable and closable manner.

JP2018-21586A

However, in the hinge, the slider is biased by the biasing member and the contact portion of the slider is in contact with the cam portion, so the second wing member rotates relative to the first wing member. When the slider moves to open and close, as the second wing member rotates and the slider moves, the contact portion changes as the contact portion of the slider and the cam portion rub against each other.
Here, a lubricant (grease) is provided at the contact part between the contact part of the slider and the cam part of the rotating member to prevent damage to the contact part of the slider, the cam part, etc. due to interference or wear. It is prevented.
However, if the lubricant becomes insufficient due to running out of lubricant or wiping off the lubricant, there is a problem in that the durability of the abutting portion between the abutting portion of the slider and the cam portion is reduced.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hinge that can prevent the durability of the contact portion between the contact portion of the slider and the cam portion from decreasing. The task is to

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

That is, in claim 1, the first wing member includes a housing portion and is fixed to the first connection object, and the first wing member includes a cam portion and is fixed to the second connection object, and the first wing member has a rotation shaft. a second wing member that is rotatably connected to the second wing member; and a second wing member that includes a contact portion and is movable in a direction toward or away from the cam portion of the second wing member while being accommodated in the accommodating portion of the first wing member. a biasing member that causes a contact portion of the slider to contact a cam portion of the second wing member by biasing the slider in a direction approaching the cam portion of the second wing member; The lubricant is provided with a supply section that supplies lubricant to the contact section between the contact section of the slider and the cam section of the second wing member.

In a second aspect of the present invention, the supply section includes a storage section that stores the lubricant, and a supply section that supplies the lubricant from the storage section to a contact section between the contact section of the slider and the cam section of the second wing member. A supply channel is a channel through which the lubricant flows during supply, and a supply channel is formed in the reservoir and is located at a contact portion between the contact portion of the slider and the cam portion of the second wing member. a first opening configured such that the lubricant flows out from the reservoir to the supply flow path when the lubricant is supplied from the reservoir, and a cam portion of the second wing member; The lubricant is configured to be discharged from the supply channel when the lubricant is supplied from the reservoir to the contact portion between the contact portion of the slider and the cam portion of the second wing member. A second opening.

In a third aspect of the present invention, the second opening of the supply section is arranged so that when the second wing member is closed with respect to the first wing member, the contact portion of the slider and the second wing member are connected to each other. The contact portion of the slider and the second wing member are disposed closer to the rotation axis than the contact portion with the cam portion, and the second wing member is opened at a predetermined angle with respect to the first wing member. The wing member is disposed on the opposite side of the rotation axis from the portion of the wing member that contacts the cam portion.

A fourth aspect of the present invention provides an electronic device including the hinge according to any one of the first to third aspects.

The present invention has the following effects.
That is, according to the present invention, it is possible to prevent the durability of the contact portion between the contact portion of the slider and the cam portion from decreasing.

FIG. 1 is a side view showing a multifunction device including a hinge according to an embodiment of the present invention. FIG. 3 is a side view showing the hinge in a closed state. FIG. 3 is a plan view showing the hinge in a closed state. FIG. 3 is a rear view showing the hinge in a closed state. FIG. 3 is a side sectional view showing the hinge in a closed state. FIG. 4 is a side sectional view showing the hinge in an open state. Similarly, a perspective view showing a rotating member of the hinge. FIG. 6 is a plan view showing a rotating member of the hinge. FIG. 6 is a bottom view showing the rotating member of the hinge. FIG. 6 is a left side view showing the rotating member of the hinge. FIG. 6 is a right side view showing the rotating member of the hinge. FIG. 6 is a rear view showing the rotating member of the hinge. FIG. 3 is a side view showing the hinge in a closed state. FIG. 6 is a side view showing the hinge in an open state. FIG. 3 is a side view showing the hinge in a closed state. FIG. 6 is a side view showing the hinge in an open state. FIG. 3 is a side view showing the hinge in a closed state. FIG. 6 is a side view showing the hinge in an open state.

Hereinafter, a multifunction device 1, which is an embodiment of office equipment in which a hinge according to the present invention is used, will be described with reference to FIG.
As shown in FIG. 1, the multifunction device 1 includes a main body 2 and a document pressure bonding plate 3. As shown in FIG. In this embodiment, the multifunction device 1 is configured to include a hinge 100 according to an embodiment of the present invention, but the multifunction device 1 may also be configured to include a hinge according to another embodiment.

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 the document placed on the top surface of the main body 2 (generates image information of the document).
The control device controls the operations of each part of the multifunction device 1, more specifically, the operations of the document reading device, the printing device described later, and the ADF described later.
Further, the control device can store image information generated by the document reading device and image information acquired through a line (such as an Internet line) 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 of paper based on the image information stored by the control device.
The display device includes, for example, a liquid crystal panel, and displays information related to the operating status of the multifunction device 1 and the like.
The input device includes, for example, buttons, switches, etc., and is operated by an operator when inputting instructions to the multifunction device 1. A display device and an input device are arranged at the front of the upper surface of the main body 2.

The document pressure bonding plate 3 is an embodiment of the second connection object according to the present invention.
The original pressure bonding plate 3 presses (presses) the original placed on the original reading device toward the original reading device, so that the original moves when the original reading device reads the original (relative to the original reading device). (changes in position).
The document pressure bonding plate 3 includes a pre-read document storage tray, an ADF (Auto Document Feeder), and a post-read document storage tray.
The ADF sequentially takes out a plurality of documents stored in a stacked state in a pre-read document storage tray one by one and places them at a predetermined reading position on the document reading device. After the document reading device finishes reading the document, the ADF transports the document placed at the reading position to the document storage tray after reading.

"Office equipment" refers to a device that has at least the function of reading a document (obtaining image information of the document).
Specific examples of office equipment include (a) a scanner with 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 a document; (c) A fax machine that has a function to send image information related to a scanned original to another device via a communication line and a function to print out image information obtained from another device; (c) a function to read a document and a scanned document; (d) a multifunction machine that also functions as the scanner, fax machine, and copy machine, and the like.

The hinges according to the respective embodiments described in detail below are all used for connecting the document pressure bonding plate 3 to the main body 2 of the multifunction device 1 in an openable/closable (rotatable) manner, but the application of the hinge according to the present invention is It is not limited to this.
That is, the hinge according to the present invention can be widely applied to "uses for connecting one of two members (first connection object) to the other member (second connection object) in an openable and closable manner". For example, it is used in OA equipment such as scanners, faxes, and copy machines, or multifunction devices, and various electronic equipment such as automobiles, toilet seats, and rice cookers. A hinge connects one of two members to the other in an openable/closable manner, for example, a door portion rotatably connected to the main body of a printer, a door portion rotatably connected to the main body of a multifunction device, etc. These include a document pressing device, a display rotatably connected to a stand, a toilet seat rotatably connected to a toilet seat, a bonnet rotatably connected to the body of an automobile, and the like.

In the following explanation, the rotation angle θ of the original pressing plate 3 (more precisely, the main body The rotation angle θ) of the original pressure bonding plate 3 with respect to 2 is set to 0°, and the rotation angle θ increases when the document pressure bonding plate 3 rotates in the opening direction (the rotation angle θ becomes positive). The rotation angle θ of the document pressure bonding plate 3 is defined as (see FIG. 1). In this embodiment, the rotation angle θ of the document pressure bonding plate 3 with respect to the main body 2 also coincides with the rotation angle of the second wing member with respect to the first wing member from the closed state, which will be described later. Therefore, in this embodiment, both are described as "rotation angle θ."

Hereinafter, a hinge 100, which is an embodiment of the hinge according to the present invention, will be described using FIGS. 1 to 18.
As shown in FIGS. 1 to 6, the hinge 100 rotatably connects the original pressure bonding plate 3 to the main body 2 of the multifunction device 1. As shown in FIGS.
The hinge 100 includes a fixed member 10, a rotating member 20, a rotating pin 30, a slider 40, a biasing member 50, and a supply section 60.
For convenience, in the following description, the vertical, longitudinal, and horizontal directions of the multifunction device 1 when the original pressing plate 3 is closed relative to the main body 2 (rotation angle θ = 0°) are used as references (original pressing plate 3 The hinge 100 will be described by making the vertical direction, front-back direction, and left-right direction of the multifunction device 1 correspond to the vertical direction, front-back direction, and left-right direction of the hinge 100 when it is closed with respect to the main body 2.

The fixing member 10 is an embodiment of the first wing member according to the present invention. The fixing member 10 is a substantially cylindrical member having the vertical direction as its longitudinal direction, an opening at the top, and a bottom at the bottom. The fixing member 10 is fixed to the main body 2 of the multifunction device 1.
The fixing member 10 includes a pair of left and right support parts 11 and a housing part 12.

The support portions 11 of the fixing member 10 protrude upward from the left and right parts of the upper rear portion of the fixing member 10, respectively. The support portion 11 of the fixed member 10 rotatably supports the rotating member 20 via the rotating pin 30. The support portion 11 of the fixed member 10 is formed with a through hole into which the rotation pin 30 is inserted.

The accommodating portion 12 of the fixing member 10 is constituted by a space (space inside the fixing member 10) surrounded by the sides and bottom of the fixing member 10. The slider 40 is accommodated in the accommodating portion 12 of the fixing member 10 .

The rotating member 20 is an embodiment of the second wing member according to the present invention. A through hole for inserting the rotation pin 30 is opened in the rear part of the rotation member 20. The rotating member 20 is rotatably supported by the fixed member 10 via a rotating pin 30. The rotating member 20 is fixed to the document pressure bonding plate 3 of the multifunction device 1.

The rotating member 20 includes a cam portion 21 .
The cam portion 21 of the rotating member 20 protrudes downward at the lower part of the rotating member 20, and has a curved surface (cam surface) at its lower end. The lower end of the cam portion 21 of the rotating member 20 is located further forward and lower than the rotating pin 30.

The rotation pin 30 is an embodiment of the "rotation shaft of the second wing member relative to the first wing member (rotation shaft that rotatably connects the second wing member to the first wing member)" according to the present invention. It is a generally cylindrical member. The rotation pin 30 is inserted into the through hole of the support part 11 of the fixed member 10 and the through hole of the protrusion part 21 of the rotation member 20.

Here, in the hinge 100, a state in which the rotating member 20 is closest to the fixed member 10 and the rotating member 20 is closed with respect to the fixed member 10 (rotating angle θ = 0°) is defined as a closed state, and A state in which the rotating member 20 is open with respect to the member 10 is defined as an open state. For example, in the hinge 100, a state in which the rotating member 20 is furthest away from the fixed member 10 (rotating angle θ=60°) is a fully open state. In addition, in the hinge 100, the rotation angle θ when the rotation member 20 is in a closed state with respect to the fixed member 10, and the rotation angle θ when the rotation member 20 is in a fully open state with respect to the fixed member 10. are not limited to these angles, and can be set as appropriate according to the specifications.

The slider 40 is fixed so as to be slidable in the opening side or the bottom side of the fixed member 10, that is, in the direction toward or away from the cam portion 21 of the rotating member 20 (up and down direction when the rotating member 20 is in the closed state). It is accommodated in the accommodating portion 12 of the member 10. The slider 40 is configured to be movable while being accommodated in the accommodating portion 12 of the fixed member 10 and in contact with the inner surface of the fixed member 10 when the rotating member 20 is rotated in the opening or closing direction. be done. The slider 40 is a cylindrical member having an opening at the bottom and a bottom at the top. The slider 40 is made of resin material.
The slider 40 includes a biasing member housing section 41 and a contact section 42 .

The biasing member accommodating portion 41 of the slider 40 is configured in a space inside the slider 40. A biasing member 50 is accommodated in the biasing member accommodating portion 41 of the slider 40 .

The contact portion 42 of the slider 40 contacts the cam portion 21 of the rotating member 20. The slider 40 contact portion 42 protrudes upward from the front portion of the top surface of the bottom of the slider 40 . The contact portion 42 of the slider 40 is configured with a curved surface, and is formed in a substantially semicircular shape when viewed from the side.

The biasing member 50 is composed of a metal coiled spring (compression spring). The biasing member 50 is housed in the biasing member accommodating portion 41 of the slider 40 and disposed within the fixing member 10 . The lower end of the biasing member 50 contacts the upper surface of the bottom of the fixing member 10, and the upper end of the biasing member 50 contacts the lower surface of the bottom of the slider 40.
The biasing member 50 biases the slider 40 in a direction (upward) toward the cam portion 21 of the rotating member 20 by its elastic force. The biasing member 50 biases the slider 40 so that the contact portion 42 of the slider 40 and the cam portion 21 of the rotary member 20 are brought into contact even when the rotary member 20 is in the closed state or closed state. , biases the rotating member 20 against the fixed member 10 in a direction to open it.
The urging force of the urging member 50 is appropriately set according to the specifications of the hinge 100, the office machine 1, etc. For example, the biasing member 50 maintains the rotational position of the rotational member 20 when the rotational angle θ of the rotational member 20 with respect to the fixed member 10 is within a predetermined angle range, and stops the rotational position when the rotational angle θ of the rotational member 20 with respect to the fixed member 10 is greater than or equal to the predetermined angle. The setting has a biasing force so that the member 20 rotates in the opening direction, and when the angle is less than a predetermined angle, the rotating member 20 rotates in the closing direction.

The supply section 60 is provided on the rotating member 20.
The supply section 60 is provided with a contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotating member 20 (near the contact portion between the contact portion 42 and the cam portion 21, the vicinity of the contact portion, etc.). ).

As described above, since the supply unit 60 is provided and grease is supplied to the contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotating member 20, the contact portion 42 of the slider 40 and the rotation It is possible to prevent the durability of the contact portion of the member 20 with the cam portion 21 from being deteriorated.

As shown in FIGS. 2 to 12, the supply section 60 includes a storage section 61, a supply channel 62, a first opening 63, and a second opening 64.

The storage section 61 of the supply section 60 is configured as a pair of left and right.
The storage section 61 of the supply section 60 stores lubricant (grease).
The storage portion 61 is formed within the rotating member 20 (cam portion 21). The storage section 61 is configured such that the upper end of the rotating member 20 is opened, the interior of the rotating member 20 is cut out, and a bottom is formed at the lower part. The storage portion 61 has a tapered bottom portion. The storage portion 61 is formed such that the approximately central portion of the bottom portion is located at the lowest position. The storage section 61 is configured such that its lower end is located near the lower end of the cam section 21 . The pair of storage portions 61 are arranged side by side in the left-right direction (the axial direction of the rotation pin 30).
The size, shape, etc. of the storage portion 61 can be appropriately set depending on specifications such as the viscosity of the lubricant and the amount of supply of the lubricant, and the purpose and use of the hinge 100.
The storage portions 61 are not limited to a pair of left and right storage portions, but may be configured with one storage portion, three or more storage portions, or the like.

The supply channel 62 of the supply section 60 is configured as a pair of left and right channels.
The supply flow path 62 is a flow path through which lubricant flows when lubricant is supplied from the reservoir 61 to the contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotating member 20. be.
The supply flow path 62 is formed to pass through the lower part of the cam portion 21 of the rotating member 20 and communicates between the outside of the rotating member 20 and the inside of the storage portion 61 . The supply flow path 62 is formed at the lower part of the rotating member 20 (cam portion 21). The supply channel 62 is configured in a straight line. The supply channel 62 is formed substantially parallel to the vertical direction when the rotating member 20 is closed with respect to the fixed member 10. The pair of supply channels 62 are arranged side by side in the left-right direction (in the axial direction of the rotation pin 30). The left supply channel 62 communicates with the left reservoir 61, and the right supply channel 62 communicates with the right reservoir 61.
The thickness, length, etc. of the supply channel 62 can be appropriately set according to specifications such as the viscosity of the lubricant and the amount of supply of the lubricant, and the purpose and use of the hinge 100.
The supply channels 62 are not limited to a pair on the left and right, but may be composed of one, three or more, or the like.

The first opening 63 (outflow opening) of the supply section 60 is an opening at the upper end of each of the pair of left and right supply channels 62 . The first opening 63 allows the lubricant to flow from the reservoir 61 when the lubricant is supplied from the reservoir 61 to the contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotating member 20. 62.
The first opening 63 is formed within the reservoir 61 . The first opening 63 is formed at the bottom of the storage section 61 at a front-rear midway point (slightly forward of the front-rear center). The first opening 63 is formed on the inclined surface of the bottom of the storage section 61 when the rotating member 20 is closed with respect to the fixed member 10 .

The second opening 64 (discharge opening) of the supply section 60 is an opening at the lower end of each of the pair of left and right supply channels 62. The second opening 64 allows the lubricant to be discharged from the supply channel 62 when the lubricant is supplied from the reservoir 61 to the contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotating member 20. configured to do so.
The second opening 64 is formed in the rotating member 20 (cam surface of the cam portion 21). The second opening 64 is formed near the contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotating member 20 .

As described above, the supply section 60 includes the reservoir section 61 that stores lubricant, the flow channel supply channel 62 through which the lubricant flows when supplying lubricant from the reservoir section 61, and the supply channel 62 from the reservoir section 61. A first opening 63 configured such that the lubricant flows out from the reservoir 61 into the supply channel 62 when lubricant is supplied; Since the second opening 64 is configured to discharge grease from the slider 40 and the cam portion 21 of the rotating member 20, it is possible to easily supply grease to the contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotating member 20. It can be realized with a configuration.

Furthermore, as described above, when the rotating member 20 is closed with respect to the fixed member 10, the supply channel 62 of the supply section 60 is formed substantially parallel to the vertical direction, so that the rotating member 20 with respect to the fixed member 10 20 is closed, lubricant can be more reliably supplied to the contact portion between the contact portion 42 of the rider 40 and the cam portion 21 of the rotating member 20.

The second opening 64 of the supply section 60 is opened from the contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotation member 20 when the rotation member 20 is closed with respect to the fixed member 10. is also arranged slightly rearward (on the rotation pin 30 side).
The second opening 64 is a contact portion of the slider 40 when the rotating member 20 is opened at a predetermined angle with respect to the fixed member 10 (in this embodiment, for example, the rotating angle θ is opened by 30 degrees). 42 and the cam part 21 of the rotating member 20 are arranged slightly forward (on the opposite side from the rotating pin 30).
The second opening 64 is between a state where the rotating member 20 is closed with respect to the fixed member 10 and a state where the rotating member 20 is opened at a predetermined angle (in this embodiment, for example, a state where the rotating member 20 is opened at a rotating angle θ=30°). At a predetermined rotation angle θ, the position can be located at the contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotating member 20. That is, the second opening 64 rotates with the abutting portion 42 of the slider 40 in the process of changing from a state where the rotary member 20 is closed to the fixed member 10 to a state where the rotary member 20 is opened at a rotation angle θ=30°. The slider 40 passes through the contact portion of the member 20 with the cam portion 21, and in the process of changing the rotation angle θ=30° from the open state to the closed state with respect to the fixed member 10. It passes through the contact portion between the contact portion 42 of the rotary member 20 and the cam portion 21 of the rotating member 20 .

As described above, the second opening 64 (discharge opening) of the supply section 60 is connected to the abutting section 42 of the slider 40 and the rotating member 20 when the rotating member 20 is closed with respect to the fixed member 10. The abutting portion 42 of the slider 40 and the rotating member are arranged closer to the rotating pin 30 than the abutting portion with the cam portion 21 of 20 is disposed on the opposite side of the pivot pin 30 from the contact portion with the cam portion 21, so that when the pivot member 20 rotates to open and close with respect to the fixed member 10, the rider 40 is The lubricant can be reliably supplied by the contact portion between the contact portion 42 and the cam portion 21 of the rotating member 20.

Note that the second opening 64 of the supply section 60 is rotated relative to the fixed member 10 when the second opening 64 of the supply section 60 is disposed in front of the contact portion of the contact portion 42 of the slider 40 and the cam portion 21 of the rotation member 20. The rotation angle θ when the member 20 is opened is not limited to 30°, and can be set as appropriate according to the specifications.
Moreover, the opening positions of the first opening 63 and the second opening 64 can be set as appropriate according to specifications.

For example, as shown in FIGS. 13 to 14, the first opening 63 (outflow opening) of the supply section 60 may be formed at the front end of the bottom of the storage section 61.
At this time, the storage portion 61 is formed such that the front end portion of the bottom portion is located at the lowest position.
Further, the second opening 64 (discharge opening) is a contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotation member 20 when the rotation member 20 is closed with respect to the fixed member 10. It is arranged in front of the contact portion (on the opposite side to the rotation pin 30) and directly above the contact portion 42 of the slider 40. The second opening 64 is a contact portion of the slider 40 when the rotating member 20 is opened at a predetermined angle with respect to the fixed member 10 (in this embodiment, for example, the rotating angle θ is opened by 30 degrees). 42 and the cam portion 21 of the rotating member 20 (on the opposite side from the rotating pin 30), and further forward than the abutting portion 42 of the slider 40.

For example, as shown in FIGS. 15 to 16, the first opening 63 (outflow opening) of the supply section 60 may be formed at the rear end of the bottom of the storage section 61.
At this time, the storage section 61 is formed such that the rear end of the bottom is located at the lowest position.
Further, the second opening 64 (discharge opening) is a contact portion between the contact portion 42 of the slider 40 and the cam portion 21 of the rotation member 20 when the rotation member 20 is closed with respect to the fixed member 10. It is arranged at the rear (on the rotation pin 30 side) of the contact portion. The second opening 64 is a contact portion of the slider 40 when the rotating member 20 is opened at a predetermined angle with respect to the fixed member 10 (in this embodiment, for example, the rotating angle θ is opened by 30 degrees). 42 and the cam portion 21 of the rotating member 20 (the contact portion 42 of the slider 40).

Furthermore, in the case where the supply section 60 includes a plurality of supply channels 62 , the opening positions of the first opening 63 and the second opening 64 can be configured to differ depending on the supply channels 62 .
At this time, for example, in the case where three supply passages 62 are provided, the first openings 63 of the three supply passages 62 are the supply passages 62 formed at the front and rear midpoints of the bottom of the storage section 61. , a supply channel 62 in which the first opening 63 is formed at the front end of the bottom of the reservoir 61; a supply channel 62 in which the first opening 63 is formed at the rear end of the bottom of the reservoir 61; Each consists of:
With this configuration, the lubricant can be applied to the contact portion between the contact portion 42 of the rider 40 and the cam portion 21 of the rotation member 20 regardless of the rotation state of the rotation member 20 with respect to the fixed member 10. can be reliably supplied.

As shown in FIGS. 17 and 18, the supply channel 62 of the supply section 60 may be configured to be inclined with respect to the vertical direction when the rotating member 20 is closed with respect to the fixed member 10.
At this time, in a state where the rotating member 20 is opened at a predetermined angle with respect to the fixed member 10 (for example, in a state where the rotating angle θ is opened by 30 degrees), the supply flow path 62 is approximately vertically opened. formed in parallel.
The second opening 64 is located rearward (rotationally (moving pin 30 side).
The second opening 64 is a contact portion of the slider 40 when the rotating member 20 is opened at a predetermined angle with respect to the fixed member 10 (in this embodiment, for example, the rotating angle θ is opened by 30 degrees). 42 and the cam portion 21 of the rotating member 20 are disposed in front of the contact portion (on the opposite side from the rotating pin 30).

In this way, when the rotating member 20 is opened at a predetermined angle with respect to the fixed member 10 of the supply section 60, the supply flow path 62 is formed approximately parallel to the vertical direction. Even when 20 is open, lubricant can be more reliably supplied to the contact portion between the contact portion 42 of the rider 40 and the cam portion 21 of the rotating member 20.

Furthermore, in the case where the supply section 60 includes a plurality of supply channels 62, the angle of inclination can be configured to differ depending on the supply channels 62.
At this time, for example, in the case where two supply channels 62 are provided, one of the supply channels 62 is formed substantially parallel to the vertical direction when the rotating member 20 is closed with respect to the fixed member 10, The other supply channel 62 is formed substantially parallel to the vertical direction in a state where the rotating member 20 is opened at a predetermined angle with respect to the fixed member 10.
With this configuration, the lubricant can be applied to the contact portion between the contact portion 42 of the rider 40 and the cam portion 21 of the rotation member 20 regardless of the rotation state of the rotation member 20 with respect to the fixed member 10. can be reliably supplied.

In addition, in order to prevent lubricating oil from leaking from the storage section 61 during transportation, for example, an opening at the upper end of the rotating member 20, the supply section 60 (the first opening 63 or the second opening 64), etc. It may be constructed by providing a lid material or a sealing material, or it may be constructed such that the entire rotating member 20 is sealed.

10 Fixed member 11 Support part 12 Accommodation part 13 Opening part 20 Rotation member 21 Cam part 30 Rotation pin 40 Slider 41 Biasing member housing part 42 Contact part 50 Biasing member 60 Supply part 61 Storage part 62 Supply channel 63 First opening 64 Second opening 100 Hinge

Claims (4)

a first wing member that includes a housing portion and is fixed to the first connection target;
a second wing member having a cam portion and fixed to a second connection target and rotatably connected to the first wing member via a rotation shaft;
a slider that includes an abutting portion and is housed in the housing portion of the first wing member and is movable in a direction toward or away from the cam portion of the second wing member;
a biasing member that causes a contact portion of the slider to contact a cam portion of the second wing member by biasing the slider in a direction toward the cam portion of the second wing member;
A hinge comprising: a supply part that supplies lubricant to a contact part between the contact part of the slider and the cam part of the second wing member. The supply unit includes:
a storage section that stores the lubricant;
a supply flow path through which the lubricant flows when the lubricant is supplied from the reservoir to the contact portion of the slider and the cam portion of the second wing member;
When the lubricant is formed in the reservoir and is supplied from the reservoir to the contact portion between the contact portion of the slider and the cam portion of the second wing member, the lubricant is supplied from the reservoir to the contact portion of the second wing member. a first opening configured to flow into the supply channel;
The lubricant is formed in the cam portion of the second wing member, and when the lubricant is supplied from the storage portion to the abutment portion between the contact portion of the slider and the cam portion of the second wing member. a second opening configured to discharge from the supply channel;
The hinge according to claim 1. The second opening of the supply section is
When the second wing member is closed with respect to the first wing member, the second wing member is arranged closer to the rotation axis than the contact portion between the contact portion of the slider and the cam portion of the second wing member. ,
When the second wing member is opened at a predetermined angle with respect to the first wing member, the position is opposite to the rotation axis from the contact portion between the contact portion of the slider and the cam portion of the second wing member. placed on the side,
The hinge according to claim 2. An electronic device comprising the hinge according to any one of claims 1 to 3.

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