JP5241433B2 - Hinge - Google Patents

Description

  The present invention relates to a hinge that rotatably connects one of two articles. More specifically, the present invention relates to a technique for shortening the hinge production process and reducing production cost.

2. Description of the Related Art Conventionally, a hinge that rotatably connects one of two articles to the other is applied to office equipment used in an office such as a copying machine, a facsimile machine, and a scanner.
Many office machines to which hinges are applied are provided with a document reading section (contact glass) on the upper surface of the main body and a document crimping plate that covers the document reading section.
The document crimping plate is used for bringing the document placed on the document reading unit into close contact with the document reading unit and holding the position of the document with respect to the document reading unit. It is rotatably connected to the end of the upper surface of the main body of the device.
As a hinge connected to the end of the upper surface of the main body of the office equipment, a technique as disclosed in Patent Document 1 is disclosed.

  The hinge disclosed in Patent Document 1 includes a hinge case 90, a spring (not shown), a slider (not shown), a rotating member 96, and a pin 97, like the hinge 9 shown in FIG.

The hinge case 90 in the hinge 9 is formed with a pair of opening holes 91a and 91b through which the pins 97 can be inserted.
The hinge case 90 houses the spring and the slider.
The spring biases the slider upward.
The slider is formed to be slidable in the vertical direction in the hinge case 90.
The rotating member 96 is formed with a through hole 96b and is in contact with the upper portion of the slider.
As shown in FIG. 7A, the pin 97 has a body portion and a head portion. The body portion of the pin 97 has a substantially cylindrical shape. The head of the pin 97 is provided at one end of the body portion of the pin 97 and has a disk shape having a larger diameter than the body portion of the pin 97. The other end of the body portion of the pin 97 (the end opposite to the end portion where the head portion of the pin 97 is provided) opens to the other end surface of the body portion of the pin 97 and the axial direction of the pin 97 A closed hole 97a having a bottom is formed. The pin 97 is fitted into the through hole 96b of the rotating member 96, and both ends of the pin 97 engage with the pair of opening holes 91a and 91b, respectively. In this way, the pin 97 is pivotally supported by the hinge case 90 and connects the hinge case 90 and the rotating member 96.
Then, as shown in FIG. 7B, the pin 97 is fixed so as not to be detached from the hinge case 90 by performing caulking on the closing hole 97a of the pin 97 (the thick solid line in FIG. 7B). (See the section surrounded by).
According to the hinge 9 in the technique disclosed in Patent Document 1, it is possible to reliably prevent the pin 97 from coming off the hinge case 90.

However, the hinge 9 in the technique disclosed in Patent Document 1 has a body portion and a head portion having a larger diameter than the body portion in order to prevent the pin 97 from being detached from the hinge case 90. In addition, since the closing portion 97a is formed in the end portion of the body portion opposite to the end portion where the head portion is provided, the shape of the pin 97 becomes complicated. The production cost of the pin 97 and the cost of caulking the pin 97 are required. As a result, the production cost of the hinge 9 increases.
Further, since both ends of the pin 97 (the end of the pin 97 head and the body portion of the pin 97 where the blocking hole 97a is formed) protrude to the outside of the hinge case 90, other members than the outside are provided. There is a possibility that the pin 97 comes out of the hinge case 90 by contacting both ends of the pin 97.
JP 2007-186884 A

  The present invention has been made in view of the above circumstances, and provides a hinge that does not require caulking and can shorten the production process and reduce the production cost.

In claim 1, one end is closed and the other end is opened, a cylindrical hinge case, one end is in contact with one end of the hinge case, and the other end of the spring is in contact And a slider that is biased in the axial direction of the hinge case by the spring, a rotating member that contacts the slider and is rotatable at the other end of the hinge case, and is fitted to the rotating member. And a substantially cylindrical pin pivotally supported by the hinge case and connecting the hinge case and the rotating member, and when the pin connects the hinge case and the rotating member, both ends of the pin is disposed in a position in which the inner peripheral surface of the hinge case, the other end of the hinge case, the outer peripheral surface of the hinge case with opening to the inner peripheral surface of the hinge case A pair of grooves that do not open and extend in the axial direction of the hinge case and engage with an end of the pin, respectively, and an outer periphery of the hinge case from one end of the hinge case in one of the pair of grooves the pin is shall collar can be inserted is formed with penetrating to the surface.

According to a second aspect of the present invention, one end is closed and the other end is opened, a cylindrical hinge case, one end is in contact with one end of the hinge case, and the other end of the spring is in contact And a slider that is biased in the axial direction of the hinge case by the spring, a rotating member that contacts the slider and is rotatable at the other end of the hinge case, and is fitted to the rotating member. And a substantially cylindrical pin pivotally supported by the hinge case and connecting the hinge case and the rotating member, and when the pin connects the hinge case and the rotating member, both ends of the pin is disposed in a position in which the inner peripheral surface of the hinge case, the other end of the hinge case, the outer peripheral surface of the hinge case with opening to the inner peripheral surface of the hinge case A pair of grooves that do not open and extend in the axial direction of the hinge case and engage with the ends of the pins, respectively, and an outer periphery of the hinge case from one end of the hinge case in each of the pair of grooves the pin is shall pair of holes that can be inserted is formed with penetrating to the surface.

As effects of the present invention, the following effects can be obtained.
That is, according to the present invention, it is not necessary to perform a caulking process, and the production process can be shortened and the production cost can be reduced.

Below, the whole structure of the hinge 1 which is 1st embodiment of the hinge based on this invention is demonstrated with reference to drawings.
In the present embodiment, the hinge 1 is a document reading unit (contact glass) (not shown) provided on the upper surface of the main body of a copying machine (facsimile, scanner, etc.) (not shown) and a document (not shown) that covers the document reading unit. It demonstrates as what was applied to the member which connects a crimping plate. However, the application target of the hinge according to the present invention is not limited to a copying machine, and can be applied to an appropriate apparatus that rotates a plate-like member or the like to a desired angle and holds it at a desired angle. It is.

  In the following, for the sake of convenience, “upper” and “lower” are defined with reference to the direction in which gravity acts (the direction in which gravity acts is assumed to be lower), and the axis of the rotation axis (pin 17 described later) of the hinge 1 “Left side” and “right side” are defined as directions, and “front” and “rear” are defined as directions perpendicular to these directions.

The hinge 1 is for rotating an unillustrated document crimping plate to a desired angle and holding it at a desired angle.
As shown in FIG. 1, the hinge 1 mainly includes a hinge case 10, a spring 14, a slider 15, a rotating member 16, a pin 17, and the like.

Hereinafter, the hinge case 10 will be described.
The hinge case 10 is formed of a resin material. The hinge case 10 is a cylindrical member having a polygonal shape in which the lower end (one end) is closed and the upper end (the other end) is opened. At the upper end of the hinge case 10, a notch is formed on the front side. A pair of holes 11 are formed on the left and right side surfaces at the upper end of the hinge case 10.

As shown in FIGS. 1 and 2, the pair of holes 11 includes an opening hole 11 a and a closing hole 11 b, and each has an inner diameter substantially the same as the outer diameter of the pin 17.
The opening hole 11a is formed on one side surface (the left side surface in the present embodiment) of the hinge case 10 and penetrates from the inner peripheral surface to the outer peripheral surface of the hinge case 10 in the left-right direction at the upper end of the hinge case 10. 10 is opened to the outside. The opening hole 11a has a shape into which the pin 17 can be inserted.
The closing hole 11b is formed on the other side surface (right side surface in the present embodiment) of the hinge case 10, and opens to the inner peripheral surface of the hinge case 10 and does not open to the outer peripheral surface of the hinge case 10 (has a bottom). . The blocking hole 11b has a shape that allows the end of the pin 17 to be engaged.
The opening hole 11a and the blocking hole 11b constituting the pair of holes 11 are arranged on a straight line.

The configuration of the hinge case according to the present invention may be any configuration as long as the lower end of the hinge case can withstand the urging force of a spring described later (for example, the shape does not change or does not break), and is limited to a resin material. Not a thing.
Further, the shape of the hinge case according to the present invention may be any shape as long as one end is opened and the other end is closed, and the planar cross-sectional shape of the trunk portion of the hinge case is limited to a square shape as in the present embodiment. Not. For example, the planar cross-sectional shape of the body portion of the hinge case may be circular or hexagonal.

Below, the spring 14 is demonstrated.
The spring 14 is constituted by a compression coil spring obtained by forming a round bar made of spring steel into a spiral shape. As shown in FIG. 1, the outer diameter of the spring 14 has an appropriate length that can be stored in the hinge case 10.

Hereinafter, the slider 15 will be described.
The slider 15 is formed of a resin material so as to be slidable in the hinge case 10. A step 15a is formed at the upper end of the slider 15 so that a difference in length (height) in the vertical direction occurs.

Below, the rotation member 16 is demonstrated.
The rotating member 16 is formed of a resin material. A cam portion 16 a and a through hole 16 b are formed at the lower end of the rotating member 16.
The cam portion 16a has a substantially elliptical shape.
The through-hole 16b is a hole formed in the upper front of the cam portion 16a and penetrating the rotating member 16 in the left-right direction. The through hole 16 b has an inner diameter that is substantially the same as the inner diameter of the pair of holes 11 of the hinge case 10. That is, the through hole 16b has an inner diameter into which the pin 17 can be fitted.

Below, the pin 17 is demonstrated.
The pin 17 is formed by cutting a metal rod-shaped member having a substantially cylindrical shape into a desired length.

Below, the manufacturing process of the hinge 1 is demonstrated.
As shown in FIG. 1, the spring 14 is housed in the hinge case 10, and the lower end (one end) of the spring 14 abuts on the lower end of the hinge case 10. The slider 15 is housed in the hinge case 10, and the lower end of the slider 15 abuts on the upper end of the spring 14. That is, the spring 14 biases the slider 15 in the axial direction of the hinge case 10.

The “axial direction of the hinge case” according to the present invention is a direction from the closed end portion of the hinge case toward the opened end portion and a direction along the shape of the hinge case. . That is, when the shape of the hinge case is inclined in an oblique direction, the “axial direction of the hinge case” is a direction that is appropriately inclined so as to follow the inclined shape.
Further, the “axial direction of the hinge case 10” in the first embodiment is a direction from the lower end of the hinge case 10 toward the upper end, and is a direction along the shape of the hinge case 10. That is, the “axial direction of the hinge case 10” and the “upward direction” in the first embodiment are the same direction, but the “axial direction of the hinge case” and the “upward direction” according to the present invention are not necessarily the same direction. There is no need.

  The step portion 15a formed on the upper portion of the slider 15 contacts the rotating member 16 (more specifically, the cam portion 16a). For this reason, the rotating member 16 is biased in the axial direction (in the present embodiment, upward) of the hinge case 10 by the spring 14 via the slider 15.

  That is, the spring 14, the slider 15, and the rotating member 16 are housed in the hinge case 10 in this order from below. At this time, the through hole 16 b of the rotating member 16 is disposed above the pair of holes 11 of the hinge case 10.

  Then, the rotating member 16 (and consequently the slider 15 and the spring 14 disposed below) is pressed downward by an appropriate device. At this time, the rotating member 16 and the like are moved downward by the appropriate device to such an extent that the pin 17 can be inserted, fitted, or engaged with the pair of holes 11 of the hinge case 10 and the through hole 16b of the rotating member 16. Pressed.

  As shown in FIG. 2, the pin 17 is inserted through the opening hole 11 a of the hinge case 10, fitted into the through hole 16 b of the rotating member 16, and engaged with the closing hole 11 b of the hinge case 10. At this time, both ends of the pin 17 are respectively arranged at positions inside the outer peripheral surface of the hinge case 10.

  When the downward pressing by the appropriate device is released, the spring 14 biases the slider 15 in the axial direction of the hinge case 10. That is, the pin 17 (and the rotating member 16) is urged in the axial direction of the hinge case 10 by the spring 14 through the slider 15.

At this time, a frictional force is generated between the outer peripheral surface of the pin 17 (the engagement surface with the pair of holes 11) and the inner peripheral surface of the pair of holes 11 (the engagement surface with the pin 17). The movement of the hinge case 10 in the axial direction is restricted. In other words, the pin 17 is engaged with the pair of holes 11 of the hinge case 10.
As a result, the pin 17 is fitted to the rotating member 16 and is pivotally supported by the hinge case 10 to connect the hinge case 10 and the rotating member 16.

When the pivot member 16 of the hinge 1 thus produced is pivoted rearward about the pin 17, the back surface of the pivot member 16 and the back surface of the hinge case 10 are engaged. That is, the backward rotation of the rotation member 16 is restricted.
At this time, the lower end of the rotating member 16 is biased in the axial direction of the hinge case 10 by the spring 14, but the rotating member 16 is engaged with the engaging surface between the rotating member 16 and the hinge case 10. The hinge case 10 is pressed downward. That is, the backward rotation of the hinge 1 is held at a desired angle.

Conversely, when the rotating member 16 rotates forward about the pin 17, the lower end of the rotating member 16 and the notch formed on the front surface of the hinge case 10 are engaged. That is, the backward rotation of the rotation member 16 is restricted.
At this time, the lower end of the rotating member 16 is biased in the axial direction of the hinge case 10 by the spring 14, but the rotating member 16 is engaged with the engaging surface between the rotating member 16 and the hinge case 10. The hinge case 10 is pressed downward. That is, the forward rotation of the hinge 1 is held at a desired angle.
In this embodiment, the hinge 1 is attached to the main body of the copying machine, and the original crimping plate is attached to the rotating member 16 of the hinge 1. For this reason, the original pressure plate can be rotated to a desired angle in the front-rear direction with respect to the copying machine (the original reading unit) and can be held at a desired angle.

Thus, since the hinge 1 does not need to be caulked with respect to the pin 17 in the production process, the production process of the hinge 1 can be shortened.
Further, since the hinge 1 can be produced using the substantially cylindrical pin 17, the shape of the pin 17 is simpler than the shape of the pin (for example, the pin 97 shown in FIG. 7) applied when caulking. Can be As a result, the production cost of the hinge 1 can be reduced.

  In addition, the hinge 1 is supported at a position where the pin 17 is inside the hinge case 10 (does not protrude outside the hinge case 10). For this reason, when other members come into contact with the hinge 1 from the outside, it is possible to prevent the pins 17 from coming out of the hinge case 10 by contacting both ends of the pins 17.

  More specifically, the pin 17 and the closing hole 11b may be engaged with the closing hole 11b of the hinge case 10 in a state where an adhesive is attached to the engaging surface of the closing hole 11b with the pin 17. In this case, the hinge case 10 and the pin 17 can be more firmly fixed, and the pin 17 can be prevented from being detached from the hinge case 10.

  Further, for example, a separate cover may be attached so as to close the opening hole 11a of the hinge case 10. In this case, it is difficult for other members to come into contact with both ends of the pin 17 from the outside, and the pin 17 can be prevented from coming off the hinge case 10.

  It should be noted that the shape of the pin, the shape of the pair of holes, and the shape of the through hole of the rotating member according to the present invention are such that the pin can be engaged or inserted into the hinge case and the pin can be rotated. The shape of the moving member is not limited as long as it can be fitted.

The configuration of the pin according to the present invention may not be a metal as long as it has a strength that can withstand the biasing force of the spring (for example, the shape does not change and the pin does not break).
Further, the length of the pin according to the present invention in the axial direction may be a length that can be pivotally supported by the hinge case, and may be a length that does not contact other members. That is, the length in the axial direction of the pin according to the present invention may be an appropriate length that is longer than the inner diameter of the hinge case and shorter than the outer diameter of the hinge case.

Thus, the hinge 1 which is the first embodiment of the hinge according to the present invention has a cylindrical hinge case 10 whose lower end (one end) is closed and whose upper end (the other end) is opened, and a lower end (one end). ) Is in contact with one end of the hinge case 10, the slider 15 is in contact with the upper end (the other end) of the spring 14, and is urged in the axial direction of the hinge case 10 by the spring 14, and the slider 15, a rotation member 16 that can rotate at the upper end of the hinge case 10, and is fitted to the rotation member 16 and pivotally supported by the hinge case 10, thereby connecting the hinge case 10 and the rotation member 16. A substantially cylindrical pin 17, and when the pin 17 connects the hinge case 10 and the rotating member 16, both ends of the pin 17 are arranged at positions inside the outer peripheral surface of the hinge case 10. Also It is.
By configuring in this way, the pin 17 can be pivotally supported on the hinge case 10 by the frictional force generated between the pin 17 and the hinge case 10, so that it is not necessary to perform caulking on the pin 17, The shape of the pin 17 can be simplified. That is, the production process of the hinge 1 can be shortened and the production cost can be reduced.

Thus, in the hinge 1 which is the first embodiment of the hinge according to the present invention, the upper end of the hinge case 10 is formed with a pair of holes 11 with which the end portions of the pins 17 are respectively engaged. 11 (opening hole 11 a) penetrates from the inner peripheral surface of the hinge case 10 to the outer peripheral surface of the hinge case 10, and the other (closed hole 11 b) of the pair of holes 11 opens to the inner peripheral surface of the hinge case 10. In addition, the hinge case 10 does not open on the outer peripheral surface.
By configuring in this way, the pin 17 can be pivotally supported on the hinge case 10 by the frictional force generated between the pin 17 and the hinge case 10, so that it is not necessary to perform caulking on the pin 17, The shape of the pin 17 can be simplified. That is, the production process of the hinge 1 can be shortened and the production cost can be reduced.

Below, the hinge 2 which is 2nd embodiment of the hinge which concerns on this invention is demonstrated.
Further, the members already described are assigned the same reference numerals and the description thereof is omitted.

  The hinge case 20 is configured similarly to the hinge case 10 in the first embodiment except for the shape of the pair of holes 21 formed on the left and right side surfaces.

The pair of holes 21 is constituted by opening holes 21a and 21b.
As shown in FIGS. 2 and 3, the opening hole 21a of the hinge case 20 has substantially the same shape as the opening hole 11a of the hinge case 10 in the first embodiment.
As shown in FIG. 3, the opening hole 21b of the hinge case 20 has substantially the same shape as the opening hole 21a (see the portion surrounded by the thick solid line in FIG. 3).

Below, the manufacturing process of the hinge 2 is demonstrated.
In the hinge 2, the spring 14, the slider 15, and the rotating member 16 are accommodated in the hinge case 20 in this order from below.
Then, the rotating member 16 (and consequently the slider 15 and the spring 14 disposed below) is pressed downward by an appropriate device. At this time, the rotation member 16 and the like are pressed downward by the appropriate device to such an extent that the pin 17 can be inserted or fitted into the pair of holes 21 of the hinge case 20 and the through hole 16b of the rotation member 16. .

  The pin 17 is inserted through either one of the pair of holes 21 (opening hole 21a or opening hole 21b), is fitted into the through hole 16b of the rotating member 16, and reaches the other halfway part of the pair of holes 21. Is inserted. At this time, both ends of the pin 17 are disposed at positions inside the outer peripheral surface of the hinge case 20.

When the downward pressing by the appropriate device is released, the pin 17 (and the rotating member 16) is urged in the axial direction of the hinge case 20 by the spring 14 via the slider 15. At this time, a frictional force is generated between the outer peripheral surfaces (engagement surfaces with the pair of holes 21) at both ends of the pin 17 and the inner peripheral surfaces (engagement surfaces with the pins 17) of the pair of holes 21, The pin 17 (and the rotation member 16) is restricted from moving in the axial direction of the hinge case 20. In other words, the pin 17 is engaged with the pair of holes 21 of the hinge case 20.
Accordingly, the pin 17 is fitted to the rotating member 16 and is pivotally supported by the hinge case 20 to connect the hinge case 20 and the rotating member 16.

Since the hinge 2 does not need to be caulked to the pins 17 in the production process, the production process of the hinge 2 can be shortened.
Further, since the hinge 1 can be produced using the substantially cylindrical pin 17, the shape of the pin 17 is simpler than the shape of the pin (for example, the pin 97 shown in FIG. 7) applied when caulking. Can be As a result, the production cost of the hinge 2 can be reduced.

  The hinge 2 is supported at a position where the pin 17 is inside the hinge case 20 (does not protrude outside the hinge case 10). For this reason, when other members come into contact with the hinge 2 from the outside, it is possible to prevent the pins 17 from coming out of the hinge case 20 by coming into contact with both ends of the pins 17.

  When the spring 14 and the rotating member 16 are replaced by penetrating the pair of holes 21 from the inside to the outside of the hinge case 20, the rotating member 16 is pressed downward and one of the pair of holes 21 is pressed. On the other hand, by pushing the pin 17 in the axial direction, the pin 17 can be removed from the hinge case 20, and the spring 14 and the rotating member 16 can be easily replaced. In addition, since the pin 17 can be inserted from either one of the pair of holes 21 of the hinge case 20 in the production process of the hinge 2, the process of inserting the pin 17 can be easily performed, and the workability thereof is improved. It can be improved.

Thus, in the hinge 2 which is the second embodiment of the hinge according to the present invention, a pair of holes 21 into which the end portions of the pins 17 are respectively engaged are formed at the upper end (the other end) of the hinge case 20. Each of the holes 21 penetrates from the inner peripheral surface of the hinge case 10 to the outer peripheral surface of the hinge case 10.
With this configuration, the pin 17 can be pivotally supported on the hinge case 20 by the frictional force generated between the pin 17 and the hinge case 20, so that it is not necessary to perform caulking on the pin 17. The shape of the pin 17 can be simplified. That is, the production process of the hinge 2 can be shortened and the production cost can be reduced.

  Below, the hinge 3 which is 3rd embodiment of the hinge based on this invention is demonstrated.

  The hinge case 30 is configured in the same manner as the hinge case 10 in the first embodiment, except that a pair of grooves 32 are formed above the pair of holes 31. Further, the pair of holes 31 of the hinge case 30 are configured in the same manner as the pair of holes 11 in the first embodiment.

  As shown in FIG. 4, the pair of grooves 32 includes a left groove 32 a and a right groove 32 b, and each of the pins 17 extends in the axial direction of the hinge case 30 and can be engaged with the pin 17. It has a semi-elliptical shape having an inner diameter substantially the same as the outer diameter.

The left groove 32 a extends in the axial direction of the hinge case 30 from the middle of the opening hole 31 a and is opened on the inner peripheral surface of the hinge case 30. In other words, the left groove 32 a is not opened on the outer peripheral surface of the hinge case 30.
The right groove 32 b extends in the axial direction of the hinge case 30 from the end of the blocking hole 31 b and is opened on the inner peripheral surface of the hinge case 30. In other words, the right groove 32 b is not opened on the outer peripheral surface of the hinge case 30.
The left groove 32a and the right groove 32b constituting the pair of grooves 32 are arranged on a straight line. The length from the left end of the left groove 32a to the right end of the right groove 32b is formed to be substantially the same as the length of the pin 17 in the axial direction.

  The shape of the pair of grooves according to the present invention is not limited as long as it can be engaged with the pin on the opening side of the hinge case from the pair of holes. For example, the shape of the pair of grooves extends to the opening side of the hinge case. Further, it may have a substantially elliptical shape extending to the closed side of the hinge case.

Below, the production process of the hinge 3 is demonstrated.
In the hinge 3, the spring 14, the slider 15, and the rotating member 16 are housed in the hinge case 30 in this order from below.
Then, the rotating member 16 (and consequently the slider 15 and the spring 14 disposed below) is pressed downward by an appropriate device. At this time, the rotating member 16 and the like are moved downward by the appropriate device to such an extent that the pin 17 can be inserted, fitted, or engaged with the pair of holes 31 of the hinge case 30 and the through hole 16b of the rotating member 16. Pressed.

  As shown in FIG. 5A, the pin 17 is inserted through the opening hole 31 a of the hinge case 30, fitted into the through hole 16 b of the rotating member 16, and engaged with the closing hole 31 b of the hinge case 30. .

  When the downward pressing by the appropriate device is released, the pin 17 and the rotating member 16 are moved in the axial direction of the hinge case 30 by the spring 14 via the slider 15 as shown in FIG. Energized to slide in the hinge case 30 (a pair of grooves 32).

When the pin 17 slides to the upper ends of the pair of grooves 32, the outer peripheral surfaces (engagement surfaces with the pair of grooves 32) at both ends of the pin 17 and the inner peripheral surfaces (engagement surfaces with the pin 17) of the pair of grooves 32. A frictional force is generated between the pin 17 (and the rotating member 16) and the movement of the hinge case 30 in the axial direction is restricted.
In addition, since the pair of grooves 32 are closed in the hinge case 30, the movement of the pin 17 (and the rotating member 16) in the axial direction of the pin 17 is restricted.

According to this, in order to remove the pin 17 from the hinge case 30, it is necessary to move the pin 17 to the pair of holes 31. At this time, since the pin 17 and the rotating member 16 are biased in the axial direction of the hinge case 30 by the spring 14, the pin 17 (and the rotating member 16) moves in the direction opposite to the axial direction of the hinge case 30. Is regulated. That is, the movement of the pin 17 (and the rotating member 16) is restricted by the frictional force generated between the pair of grooves 32 and the pin 17, the shape of the pair of grooves 32, and the biasing force of the spring 14. In other words, the pin 17 is engaged with the pair of grooves 32 of the hinge case 30.
Accordingly, the pin 17 is fitted to the rotating member 16 and is pivotally supported by the hinge case 30 to connect the hinge case 30 and the rotating member 16.

Since the hinge 3 does not need to be caulked with respect to the pin 17 in the production process, the production process of the hinge 3 can be shortened.
Further, since the hinge 3 can be produced using the substantially cylindrical pin 17, the shape of the pin 17 is simpler than the shape of the pin (for example, the pin 97 shown in FIG. 7) applied when caulking. Can be As a result, the production cost of the hinge 3 can be reduced.

  As shown in FIG. 5B, the hinge 3 is supported at a position where the pin 17 is inside the hinge case 30 (does not protrude outside the hinge case 30). For this reason, it is possible to prevent the pin 17 from being pulled out of the hinge case 30 due to contact with both ends of the pin 17 when another member comes into contact with the hinge 3 from the outside.

  More specifically, the pair of grooves 17 of the hinge case 30 and the pair of grooves 17 (left groove 32a and right groove 32b) with the pin 17 and the pair of pins 17 in a state where an adhesive is attached to the engagement surface with the pin 17 are described. The groove 32 may be engaged. In this case, the hinge case 30 and the pin 17 can be more firmly fixed, and the pin 17 can be prevented from being detached from the hinge case 30.

  Further, for example, a separate cover may be attached so as to close the opening hole 31a of the hinge case 30. In this case, it is difficult for other members to come into contact with both ends of the pin 17 from the outside, and the pin 17 can be prevented from being detached from the hinge case 30.

As described above, the hinge 3, which is the third embodiment of the hinge according to the present invention, opens to the inner peripheral surface of the hinge case 30 at the upper end (the other end) of the hinge case 30 and to the outer peripheral surface of the hinge case 30. Is not opened and extends in the axial direction of the hinge case 30 and engages with the ends of the pins 17, and the hinge case 30 extends from one end of the pair of grooves 32 on the upper end side of the hinge case 30. An opening hole 31a (hole) through which the pin 17 can be inserted is formed.
With this configuration, the pin 17 can be pivotally supported on the hinge case 30 by the frictional force generated between the pin 17 and the hinge case 30, the shape of the hinge case 30, and the biasing force of the spring 14. It is not necessary to perform caulking on the pin 17, and the shape of the pin 17 can be simplified. That is, the production process of the hinge 3 can be shortened and the production cost can be reduced.

  Below, the hinge 4 which is 4th embodiment of the hinge based on this invention is demonstrated.

  The hinge case 40 is configured similarly to the hinge case 30 in the third embodiment except for the shape of the pair of holes 41 formed on the left and right side surfaces. Further, the pair of grooves 42 of the hinge case 40 are configured similarly to the pair of grooves 32 in the third embodiment.

The pair of holes 41 is constituted by opening holes 41a and 41b.
As shown in FIGS. 5 and 6, the opening hole 41a of the hinge case 40 has substantially the same shape as the opening hole 31a of the hinge case 30 in the third embodiment.
As shown in FIG. 6, the opening hole 41b of the hinge case 40 has substantially the same shape as the opening hole 41a (see the portion surrounded by the thick solid line in FIG. 6).

Below, the manufacturing process of the hinge 4 is demonstrated.
In the hinge 4, the spring 14, the slider 15, and the rotating member 16 are accommodated in the hinge case 40 in this order from below.
Then, the rotating member 16 (and consequently the slider 15 and the spring 14 disposed below) is pressed downward by an appropriate device. At this time, the rotating member 16 and the like are pressed downward by the appropriate device to such an extent that the pin 17 can be inserted or fitted into the pair of holes 41 of the hinge case 40 and the through hole 16b of the rotating member 16. .

  As shown in FIG. 6A, the pin 17 is inserted through one of the pair of holes 41 (opening hole 41a or opening hole 41b), and is fitted into the through hole 16b of the rotating member 16, so that the pair of holes The pin 17 is inserted to the other halfway part of 41. At this time, both ends of the pin 17 are arranged at positions inside the outer peripheral surface of the hinge case 40.

  When the downward pressing by the appropriate device is released, the pin 17 and the rotating member 16 are moved in the axial direction of the hinge case 40 by the spring 14 via the slider 15 as shown in FIG. Energized to slide in the hinge case 40 (a pair of grooves 42).

When the pin 17 slides to the upper ends of the pair of grooves 42, the outer peripheral surfaces (engagement surfaces with the pair of grooves 42) at both ends of the pin 17 and the inner peripheral surfaces of the pair of grooves 42 (engagement surfaces with the pin 17). Since a frictional force is generated between the pin 17 (and the rotating member 16), the movement of the hinge case 40 in the axial direction is restricted.
Further, since the pair of grooves 42 are closed in the hinge case 40, the movement of the pin 17 (and the rotating member 16) in the axial direction of the pin 17 is restricted.

According to this, in order to remove the pin 17 from the hinge case 40, it is necessary to move the pin 17 to the pair of holes 41. At this time, since the pin 17 and the rotating member 16 are biased in the axial direction of the hinge case 40 by the spring 14, the pin 17 (and the rotating member 16) moves in the opposite direction to the axial direction of the hinge case 40. Is regulated. That is, the movement of the pin 17 (and the rotating member 16) is restricted by the frictional force generated between the pair of grooves 42 and the pin 17, the shape of the pair of grooves 42, and the biasing force of the spring 14. In other words, the pin 17 is engaged with the pair of grooves 42 of the hinge case 40.
Accordingly, the pin 17 is fitted to the rotating member 16 and is pivotally supported by the hinge case 40 to connect the hinge case 40 and the rotating member 16.

Since the hinge 4 does not need to be caulked with respect to the pins 17 in the production process, the production process of the hinge 4 can be shortened.
Further, since the hinge 4 can be produced using the substantially cylindrical pin 17, the shape of the pin 17 is simpler than the shape of the pin (for example, the pin 97 shown in FIG. 7) applied when caulking. As a result, the production cost of the hinge 4 can be reduced.

  As shown in FIG. 6, the hinge 4 is supported at a position where the pin 17 is inside the hinge case 40 (does not protrude outside the hinge case 40). For this reason, it is possible to prevent the pin 17 from being pulled out of the hinge case 40 due to contact with both ends of the pin 17 when another member comes into contact with the hinge 4 from the outside.

  When the spring 14 and the rotating member 16 are replaced by penetrating the pair of holes 41 from the inside to the outside of the hinge case 40, the rotating member 16 is pressed downward, and one of the pair of holes 41 is On the other hand, by pushing the pin 17 in the axial direction, the pin 17 can be removed from the hinge case 40, and the spring 14 and the rotating member 16 can be easily replaced. Moreover, in the production process of the hinge 4, since the pin 17 can be inserted from either one, the workability can be improved.

As described above, the hinge 4 which is the fourth embodiment of the hinge according to the present invention opens to the inner peripheral surface of the hinge case 40 at the upper end (the other end) of the hinge case 40 and to the outer peripheral surface of the hinge case 40. Does not open and extends in the axial direction of the hinge case 40 and engages with the ends of the pins 17, and the hinge case 40 extends from the upper end of the hinge case 40 in each of the pair of grooves 42. A pair of holes 41 through which the pin 17 can be inserted is formed, and the frictional force generated between the pin 17 and the hinge case 40 and the shape of the hinge case 40 are Since the pin 17 can be pivotally supported on the hinge case 40 by the biasing force of the spring 14, it is not necessary to caulk the pin 17, and the shape of the pin 17 The shape can be simplified. That is, the production process of the hinge 4 can be shortened and the production cost can be reduced.

  When the rotating member 16 in the first embodiment is applied to the hinge 3 in the third embodiment and the hinge 4 in the fourth embodiment, the pin 17 and the rotating member 16 are a pair of the hinge 3 and the hinge 4. The groove 32 (the pair of grooves 42) is slid in the axial direction of the hinge case 30 (hinge case 40). For this reason, the lengths (heights) of the hinges 3 and 4 in the vertical direction are larger than the hinges 1 and 2, but the heights of the hinge case 30 (hinge case 40) and the rotating member 16 are appropriately changed. Thus, the heights of the hinges 1 and 2 and the hinges 3 and 4 can be made the same.

The disassembled perspective view which shows 1st embodiment of the hinge which concerns on this invention. Similarly a partial front sectional view. The partial front cross-sectional perspective view which shows 2nd embodiment of the hinge which concerns on this invention. The partial front cross-sectional perspective view which shows 3rd embodiment of the hinge case which concerns on this invention. The fragmentary front sectional view which shows the production process of 3rd embodiment of the hinge which concerns on this invention. (A) The fragmentary front sectional view which shows a state before a hinge case and a rotation member are connected. (B) The partial front sectional view which shows the state after the hinge case and the rotation member were connected. The fragmentary front sectional view which shows the production process of 4th embodiment of the hinge which concerns on this invention. (A) The fragmentary front sectional view which shows a state before a hinge case and a rotation member are connected. (B) The partial front sectional view which shows the state after the hinge case and the rotation member were connected. The fragmentary front sectional view which shows the production process of the conventional hinge. (A) The fragmentary front sectional view which shows the state before performing crimping. (B) The partial front sectional view which shows the state after performing caulking.

DESCRIPTION OF SYMBOLS 1 Hinge 10 Hinge case 11 A pair of holes 14 Spring 15 Slider 16 Rotating member 17 Pin

Claims (2)

A cylindrical hinge case having one end closed and the other end opened;
A spring whose one end is in contact with one end of the hinge case;
A slider that is in contact with the other end of the spring and biased in the axial direction of the hinge case by the spring;
A rotating member that contacts the slider and is rotatable at the other end of the hinge case;
A substantially cylindrical pin that is fitted to the rotating member and pivotally supported by the hinge case, and connects the hinge case and the rotating member;
Comprising
When the pin connects the hinge case and the rotating member, both ends of the pin are arranged at positions inside the outer peripheral surface of the hinge case ,
The other end of the hinge case opens to the inner peripheral surface of the hinge case, does not open to the outer peripheral surface of the hinge case, extends in the axial direction of the hinge case, and engages with the end of the pin. a pair of grooves, and wherein said pin is Ru is collar can be inserted formed hinge with penetrating from one end of the hinge case to the outer peripheral surface of the hinge case in one of the pair of grooves. A cylindrical hinge case having one end closed and the other end opened;
A spring whose one end is in contact with one end of the hinge case;
A slider that is in contact with the other end of the spring and biased in the axial direction of the hinge case by the spring;
A rotating member that contacts the slider and is rotatable at the other end of the hinge case;
A substantially cylindrical pin that is fitted to the rotating member and pivotally supported by the hinge case, and connects the hinge case and the rotating member;
Comprising
When the pin connects the hinge case and the rotating member, both ends of the pin are arranged at positions inside the outer peripheral surface of the hinge case ,
The other end of the hinge case opens to the inner peripheral surface of the hinge case, does not open to the outer peripheral surface of the hinge case, extends in the axial direction of the hinge case, and engages with the end of the pin. a pair of grooves, and the hinge case one end side of the hinge with penetrating from the end portion to the outer peripheral surface of the hinge case the pin Ru is formed can be inserted a pair of holes of the each of the pair of grooves.