JP2538638Y2 - Hinge device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device used for, for example, supporting a door on a cabinet body so that the door can be opened and closed.

[0002]

2. Description of the Related Art A hinge device of this type includes a Japanese Utility Model 2-1.
As disclosed in Japanese Patent No. 18076, it can be detached from the cabinet body and the door at the time of transportation or storage, and can be easily attached to the cabinet body and the door later if necessary. There is a hinge device.

In this hinge device, a cylindrical inner cup is fitted on the inner peripheral surface of a hole provided in a door, and a hinge plate is fixed to a cabinet body in advance. Then, of the first hinge body and the second hinge body rotatably connected to each other, the first hinge body is fixed to the cabinet body by attaching the first hinge body to the hinge plate. By inserting the protrusion into the inner cup and rotating it, the second
The hinge body is fixed to the door. That is, an engagement mechanism is provided between the protrusion of the second hinge main body and the inner cup so that they can not be separated from each other.

[0004]

As described above, the conventional hinge device requires a cylindrical inner cup, and this inner cup has an engagement mechanism for the projection of the second hinge device. It has to be provided, and the shape of the inner cup has become extremely complicated. Therefore, simple processing by a press or the like cannot be performed, and the cost is disadvantageously increased. The present invention has been made in view of the above-mentioned problems of the related art, and has as its object to provide a hinge device which has a simple structure and can be reduced in cost.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and its gist is that a hinge plate fixed to a fixed body, a hole provided on the back surface of the opening and closing body, and A first hinge main body fixed to a hinge plate, and a second hinge main body having a projection rotatably connected to the first hinge main body and removably fitted in the hole, and fixed. In a hinge device for supporting an opening / closing body so that the opening / closing body can be opened / closed, a locking plate is fixed on the back surface of the opening / closing body and around the hole, and the locking plate is provided on an inner peripheral surface of the hole. The second hinge body has a hook that extends toward the depth direction of the side hole, and the protrusion of the second hinge body has a hole that is larger than the hook when the protrusion is inserted into the hole. Which is located on the deep side of the second hinge body when the second hinge body is rotated. A latching projection is provided so as to overlap and engage with each other, and at least one of the latching claw and the latching projection opens and closes the second hinge body when the second hinge body is rotated. The hinge device is provided with a tapered portion for moving in a direction approaching the body.

[0006]

Since the latch plate has a simple shape having latch hooks, it can be easily manufactured at low cost by pressing or the like. When the protrusion of the second hinge body is inserted into the hole of the opening / closing body and the second hinge body is rotated, the locking projection of the protrusion engages with the locking claw of the locking plate, and the second hinge body is tapered. As a result, it is moved in a direction approaching the opening / closing body.
As a result, the second hinge main body is pressed against and fixed to the opening / closing body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 2 is an exploded perspective view of the hinge device 1 according to the present invention. In this embodiment, a mode in which a door (open / close body) 200 is supported on a box-shaped cabinet body (fixed body) 100 so as to be openable and closable. It is.

The hinge device 1 includes a cabinet body 100.
, A hook plate 20 fixed to the door 200, and a main body 50 including a first hinge main body 30 and a second hinge main body 40 rotatably connected to each other. ing.

The first hinge body 30 includes a hinge plate 10
It can be easily attached and detached. This structure is the same as the above-mentioned conventional hinge device.
Since this is a well-known technique disclosed in, for example, Japanese Patent Application Laid-Open No. 1118076, a detailed description thereof will be omitted.

The feature of the hinge device 1 lies in the structure of the latch plate 20 and the second hinge body 40. FIG. 1 is an enlarged perspective view of a main part of the hinge device 1. The back surface 20 of the door 200
At one end, a circular hole 202 having a predetermined depth is formed. The latch plate 20 is fixed to the back surface 201 by screws 203.

FIG. 3 shows the latch plate 20, FIG. 3 (A) is a plan view thereof, FIG. 3 (B) is a front view thereof, and FIG.
3C is a cross-sectional view taken along the line II of FIG. 3A, and FIG.
It is an arrow enlarged view.

The retaining plate 20 has a flat plate portion 21 and two retaining claws 22 and 23. The flat plate portion 21 has a door 20
A concave curved portion 24 having a radius of curvature that is the same as or slightly larger than the inner diameter of the hole 202 is formed. The hooking claws 22 and 23 are formed so as to be continuous with both ends of the concave curved portion 24. The hooking claw 22 includes a vertical portion 22a bent at a substantially right angle from the flat plate portion 21 to the back side, and the vertical portion 22a.
And a horizontal portion 22b extending substantially horizontally inward from the front end. Similarly, the hook 23 includes a vertical portion 23a and a horizontal portion 23b.

As shown in FIG. 3 (D), the bottom surface of the horizontal portion 23b of the hooking claw 23 has a tapered surface (tapered portion) which becomes thicker as it proceeds clockwise in FIG. 3 (A). ) 2
3c. The bottom surface of the horizontal portion 22a of the hook 22 also has a similar tapered surface 22c (see FIG. 3B).
The plate portion 21 is provided with two mounting holes 25 and a projection 26 projecting upward from the surface 21 a of the plate portion 21. Since the hanging plate 20 has a very simple shape as described above, it can be easily formed by press working, and the manufacturing cost can be reduced.

The locking plate 20 is provided with locking claws 22 and 2.
3 is inserted into the hole 202 of the door 200, the back surface 21b of the flat plate portion 21 is brought into contact with the back surface 201 of the door 200, and the concave curved portion 24
Are fixed along the outside of the hole 202 by inserting a screw 203 into the mounting hole 25 and screwing it into the door 200. In this state, the vertical portions 22a and 23a of the hooking claws 22 and 23 are located along the inner peripheral surface of the hole 202, and the horizontal portions 22b and 23b protrude toward the inside of the hole.

FIG. 4 shows the second hinge body 40, FIG. 4 (A) is a plan view thereof, FIG. 4 (B) is a front view thereof, and FIG.
4C is a bottom view, FIG. 4D is a side view of FIG.
FIG. 4E is a cross-sectional view taken along the line IV-IV of FIG. The second hinge body 40 includes a cover portion 41, a flange portion 42, and a cover portion 4.
1 and a cup portion (projection) 43 projecting from the flange portion 42 to the rear surface side.

The cover portion 41 includes a flat plate portion 44 and a flat plate portion 4.
4 and an upright portion 45 that rises from the periphery of the back surface side. The cover portion 41 is large enough to receive the flat plate portion 21 of the latch plate 20 therein and rotate by a predetermined angle, as indicated by a two-dot chain line in FIG. Further, as shown in FIGS.
On the back surface of one, two concave portions 46a and 46b having an inner diameter larger than the outer diameter of the projection 26 of the latch plate 20 are provided. These recesses 46a and 46b engage with the projections 26 as described later.

The flange 42 has a substantially semicircular plate shape, and its surface 42a is substantially flush with the tip of the upright portion 45 of the cover 41. As shown in FIG. 4C, the cup 43 has a large projection 47 and a small projection 48. The arc-shaped side surface 48a of the small protrusion 48 is continuous with the edge of the flange 42. The neck portion 31 of the first hinge body 30 is rotatably attached to the inner concave portion 48b of the small protrusion 48.

On both side surfaces 47a and 47b of the large projection 47,
At a position separated from the flat plate portion 44 of the cover portion 41 by a predetermined dimension in the height direction of the cup portion 43, hooking projections 49a, 49b for the hooking claws 22, 23 of the hooking plate 20 are formed so as to project outward. ing. The interaction between the hooking claws 22, 23 and the hooking projections 49a, 49b will be described later.
The first hinge main body 30 is provided in the inner recess 47d of the large projection 47.
Is rotated so as to be in a standing posture with respect to the second hinge main body 40, the neck portion 31 of the first hinge main body 30 is housed.

The arc-shaped side surface 47c of the large projection 47 and the small projection 4
The eight arc-shaped side surfaces 48 a are formed substantially concentrically with substantially the same outer diameter, and the outer diameter is slightly smaller than the inner diameter of the hole 202 of the door 200. The height of the cup 43 is smaller than the depth of the hole 202. Then, as shown in FIG.
The cup 43 can be inserted into the hole 202 in a state in which the latch plate 21 is accommodated inside the cover 41 of the “0”, and the cup 43 hardly rattles in the hole 202 in the inserted state. (Hereinafter, this state is referred to as a pre-setting state).

In the pre-setting state, the second
The tip of the upright portion 45 of the cover portion 41 of the hinge body 40 contacts the back surface 201 of the door 200, the flange portion 42 is located slightly inside the hole 202, and the latching projections 49a and 49b are respectively engaged with the latching plate 20. It is slightly shifted in the circumferential direction so as not to overlap with the pawls 22, 23, and is located slightly deeper in the hole 202 than the pawls 22, 23.
Is inserted into the concave portion 46a of the second hinge body 40.

When the hinge body 50 is rotated in the clockwise direction (the direction of arrow X in FIG. 1) from the pre-setting state, the latching projections 49a and 49b respectively move the latching claws 22 and 49, respectively.
23, the upper surfaces of the latching projections 49a, 49b contact the tapered surfaces 22c, 23c of the latching claws 22, 23, and are guided downward by the tapered surfaces 22c, 23c. As a result, the second hinge main body 40 is further pressed against the back surface 201 of the door 200, whereby the second hinge main body 40 and thus the hinge main body 50 are firmly fixed to the door 200.

When the second hinge body 40 rotates, the hooks 22, 23 engage with the hook projections 49a, 49b, and at the same time, the projection 26 of the hook plate 20
It separates from the concave portion 46a of the hinge body 40 and enters into the inside 46b. In order for the projection 26 to move from the concave portion 46a to the concave portion 46b, the projection 26 comes into contact with the back surface of the flat plate portion 41 on the way.
By slightly elastically deforming in the direction away from 0,
This is possible. When the projection 26 is inserted into the recess 46 b, the flat plate portion 41 comes into close contact with the back surface 201 of the door 200 due to its elasticity.

On the other hand, in order to move the projection 26 out of the concave portion 46b and move it to the concave portion 46a, it is necessary to apply a rotational force to the second hinge body 40 to elastically deform the flat plate portion 41 as described above. . Therefore, the second hinge body 40 does not rotate carelessly, and thus the hinge body 50 does not accidentally come off the door 200.

In the above fixed state, the hook plate 2
0 is covered by the cover portion 41 of the second hinge body 40 and the door 2
The hole 202 of 00 is covered by the cover 41 and the flange 42. Therefore, the hanging plate 20 and the hole 202 are not exposed, and the appearance is good.

This invention is not limited to the above-described embodiment, and various modes can be adopted. For example, in the above-described embodiment, the hooking claw is provided with the tapered portion, but this may be provided on the hooking projection or on both of them. or,
In the above embodiment, the door is supported by the cabinet body so as to be openable and closable. However, the combination of the fixed body and the openable body is not limited to this, and can be applied to various things.

[0026]

As described above, according to the present invention, there is an excellent effect that the structure of the hinge device can be simplified and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a main part of a hinge device.

FIG. 2 is an overall perspective view of the hinge device.

3A is a plan view of a latch plate, FIG. 3B is a front view of the same, FIG. 3C is a cross-sectional view taken along line II of FIG. 3A, and FIG. It is.

4A is a plan view of a second hinge body, FIG. 4B is a front view thereof, FIG. 4C is a bottom view thereof, FIG. 4D is a side view of FIG.
(E) is an IV-IV sectional view of (C).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hinge apparatus 10 Hinge plate 20 Hanging plate 22, 23 Hanging claw 22c, 23c Tapered surface (taper part) 30 First hinge main body 40 Second hinge main body 43 Cup part (projection) 49a, 49b Hanging projection 100 Cabinet Main body (fixed body) 200 Door (opening / closing body) 201 Back side 202 hole

Claims (1)

(57) [Scope of request for utility model registration] A hinge plate fixed to a fixed body;
It has a hole provided on the back surface of the opening / closing body, a first hinge body fixed to the hinge plate, and a projection rotatably connected to the first hinge body and removably fitted to the hole. A second hinge main body, and a hinge device that supports the openable and closable body with respect to the fixed body so that the openable and closable body can be opened and closed. A latch plate is fixed around the hole on the back surface of the openable and closable body. The locking plate has a locking claw extending along the inner peripheral surface of the hole toward the depth direction of the hole, while the protrusion of the second hinge body is provided with the protrusion. A latching projection which is located on a deeper side of the hole than the latching claw when inserted into the second latch body, and which is arranged so as to overlap with and engage with the latching claw when the second hinge body is rotated. And a second hinge main body is provided on at least one of the locking claw and the locking projection. A hinge device provided with a tapered portion for moving the second hinge main body in a direction approaching the opening / closing body when is rotated.