JP2854274B2 - 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, and more particularly to a hinge device for a door that opens and closes in both directions.

[0002]

2. Description of the Related Art In general, a hinge device is also referred to as a free hinge, and is usually a hinge attached to a swingable door which can be opened and closed in one direction or both directions. With the body in place, the door opens with the hinge rod as a fulcrum, so the elastic body in the hinge works,
This device has a mechanism for automatically closing the door using the stress of the elastic body as the urging force of the door. Floor hinges are used for relatively heavy doors, and the opening / closing speed of the universal door can be adjusted by the strength of the rotational urging force of the elastic body in the hinge device. The floor hinge is used by being attached to a floor surface.

[0003]

With the above-mentioned conventional hinge device, it is necessary to provide a stopper-like mechanism for stopping the door at a certain position, and such a stopper is usually mounted on the floor. Was sometimes obstructed during cleaning.

[0004] Further, with respect to the conventional hinge device, when the hinge device is mounted on a double door, the door is opened inward and outwardly.
The door may not return to its home position if the rotational biasing force of both the opening and closing is uneven.

Normally, a hinge device employs a mechanism in which a door is opened to apply a force to an elastic body inside the hinge device, and this force is used to automatically close the door as a rotational urging force. Often used as a power,
Compared to the case of using the elastic force due to the expansion and contraction of the elastic body,
The durability of the elastic body was not good. In addition, normal hinge
The hinge is the hinge of the door axis, which is the pivot point of the door.
Often provided coaxially with the rotation fulcrum of
The structure is complicated, the production is complicated, and the durability is high.
Often there was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a relatively simple structure capable of uniformly applying a rotational biasing force to both the inside and the outside, and furthermore, the double door is stopped at a fixed position. The present invention proposes a hinge device capable of performing the above-described operations.

[0007]

According to the present invention, a hinge device provided with an arm 6 for applying a rotational urging force to a door (door body 23) is described by adding reference numerals to the components used in the following embodiments. , A door rotation fulcrum A formed by rotatably mounting a door shaft 13 on a support member (support plate 2).
When the be those provided in the vicinity of the door rotation pivot part A, of the supporting member becomes a pair to two hinge pins 4
a and 4b are formed upright , separate members from the door shaft
First and second arm rotating fulcrum portion B of (hinge rotation supporting portion B1, B2), than the door shaft provided on the rotating outer door, the member (the pressing member 8) to be mounted on the arm 6 A connection shaft 12 pivotally supported, the member mounted on the arm 6, and the first and second arm rotation fulcrum portions B
An elastic material (coil spring 7) interposed between the first arm and the second arm when the door rotates and the connection shaft moves around a door shaft as a fulcrum. The hinge device has a configuration in which a space between the pivot member and the rotation fulcrum portion is reduced, the elastic material is compressed along with the contraction, and the door is rotationally urged by the elastic force.

The present invention also relates to a hinge device 1 having an arm 32 for applying a rotational urging force to a door (door body 23).
, A door rotation fulcrum part A formed by rotatably mounting a door shaft 13 on a support member (support plate 2), and a door rotation fulcrum part A provided near the door rotation fulcrum part A,
First and second arm rotation fulcrum portions B (hinge rotation support portions B1 and B2) formed separately from the door shaft and formed by erecting a pair of two hinge pins on the support member;
A connection shaft that is provided on a door that is rotated outside of the door shaft and engages with a guide groove (a connection shaft notch portion) formed in the arm (plate-shaped arm 32); An elastic member (leaf spring 30) interposed between the first and second arm rotation fulcrum portions, wherein when the door rotates and the connection shaft moves around a door shaft as a fulcrum, A hinge device having a configuration in which a space between a connection shaft and the first and second arm rotation fulcrum portions is reduced, and the elastic material is compressed accordingly, and the door is rotated and urged by the elastic force. is there.

In the above-described present invention, the door rotation fulcrum portion A and the first and second arm rotation fulcrum portions B (B1, B
2) Assuming that the connecting shaft 12 is C, the door rotates around A as a fulcrum, and the interval between A and C is always constant. Door pivot
The point A serves as a fulcrum for the positioning operation of the door initial position.
The first and second arm rotation fulcrum parts are provided separately.
Have been. C moves with the door.

On the other hand, the arm rotates about B1 or B2 as a fulcrum, depending on whether the door rotates inside or outside.
At this time, the distance between C at the other end of the arm and B1 or B2 becomes smaller in inverse proportion to the opening angle of the door. Then, the elastic material is compressed, and the door is rotated and biased by the elastic force.

Then, the turning urging force is applied until the door returns to the initial position. Therefore, when the door returns to the initial position, the rotation urging force disappears, and the door stops at the initial position.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings.

FIG. 1 is a perspective view showing an attached state of the hinge device according to the present invention and an internal state of the hinge device, FIG. 2 is an exploded perspective view of the hinge device according to the present invention, and FIG. FIG. 4 is a partially cutaway front view, and FIG. 4 is a plan view showing a process of opening and closing a door in a hinge mounted state.

1 and 2, a hinge device 1 of this embodiment includes a support plate 2, a door mounting plate 3, two hinge pins 4 (an outer hinge pin 4a, an inner hinge pin 4b), and a hinge pin receiving member. 5, a cylindrical arm 6 (an arc-shaped groove 15, 15 is formed in a block provided at the tip), a coil spring 7 as an elastic body mounted inside the arm, and a pressing member also mounted inside the arm 8, a cap 9 for holding the coil spring 7 and the pressing member 8 in the arm 6, a small screw 10 for fixing the cap 9, and an E-shaped retaining ring 11 for fixing a door shaft 12, which will be described later, to the pressing member 8.
It is composed of

In the present embodiment, the support plate 2 has an inverted L-shape. The upper horizontal piece has hinge pin holding holes 17, 17 and a sleeve bearing 18 for rotatably supporting a door shaft 13, which will be described later. Is provided. The vertical piece of the support plate 2 has a hinge pin receiving member fixing hole 19 used for screwing the hinge pin receiving member 5, and a screw fixing used for screwing the support plate 2 to the door support 22. A hole 20 is provided.

The door mounting plate 3 has a connecting shaft 1
2. A plurality of screw holes 20 for attaching the door shaft 13 and the plate to the door body 23 are provided.

The arm 6 has an elongated arm opening 14 formed in the longitudinal direction, and the above-described arc-shaped groove 15, 15 is formed in a block provided at the tip. A coil spring 7 and a pressing member 8 are movably mounted in the arm 6, and a cap 9
And the cap 9 is fixed to the end of the arm with a small screw 10.

The connecting shaft 12 protrudes into the arm through an arm opening 14 provided in the arm 6, and its tip is inserted into a connecting shaft insertion hole 16 provided in the pressing member 8 to form an E-shape. The retaining ring 11 is rotatably fixed to the pressing member 8. As described above, since the connecting shaft 12 is fixed to the pressing member 8, when the connecting shaft 12 slides in the arm opening 14, the pressing member 8 presses and biases the coil spring 7.

When the arm 6 moves along with the door body 23 as described later, one of the hinge pins 4 serves as a pivot point B1 of the arm 6 as an open hinge pin 4a. The other of the four pivots B2 of the arm 6 serves as the hinge pin 4b for inward opening.
Becomes The upper part of the hinge pin 4 is inserted into a hinge pin hole 17 provided in the support plate 2, and the lower part is a hinge pin receiving portion 21 of the hinge pin receiving member 5.
Is fitted and held.

In this embodiment, the hinge rotation fulcrum B1 and the hinge rotation fulcrum B2 are provided at positions symmetrical with respect to virtual radiation passing through the door shaft 13 at the stationary position (initial position) of the door body 23.

Further, the door shaft 13 provided on the door mounting plate 3 is fitted to the sleeve bearing 18 of the support plate 2, and the arc-shaped grooves 15, 15 provided on the arm 6 engage with the hinge pins 4.

As shown in FIG. 1, the support plate 2 is attached to the door support 22 by small screws 24, and the door mounting plate 3 is similarly attached to the door body 23 by small screws 24.

As shown in FIG. 3, a door mounting plate 25 is provided on an upper portion of the door main body 23, and a door shaft 26 is provided.
The door shaft 26 is fitted to a sleeve bearing 29 provided on the door mounting plate 25 by an upper door shaft mounting plate 27 provided with an upper door shaft mounting plate 27.
The center of the door shaft 26 is provided on a vertical extension of a door rotation fulcrum A described later, and similarly constitutes a door rotation support.

As shown in FIG. 4, the hinge device 1 of the present embodiment has a center of the door shafts 13 and 26 as a door rotation fulcrum A.
The center of each hinge pin 4 is connected to a hinge rotation fulcrum B (B1, B
2), and the center of the connection shaft 12 is the door hinge connection shaft C. When the door opens and closes, the door opens around the door rotation fulcrum A.

When the door is opened and closed, that is, when the door body 23 rotates counterclockwise in FIG. 4 around the door rotation fulcrum A, the center C of the connecting shaft becomes an arc having a radius of AC. On the C-C2 locus.

The distance between the pivot point A of the door and the center of the connecting shaft (A
−C) is constant irrespective of the rotational position of the door main body 23, but the distance (B−C 2) between the hinge rotation fulcrum B 1 and the connecting shaft center C in this example is changed as the door main body 23 rotates. It is shorter than the distance (B-C1) between the hinge rotation fulcrum portion B1 and the connecting shaft center C at the initial position. That is, the door body 2
When the door 3 is opened around the door fulcrum A, the center C of the connecting shaft moves on the locus C2, C2,.
C2) gradually becomes shorter than the distance (B-C1) between the hinge rotation fulcrum B1 and the connecting shaft center C at the door initial position.

That is, with the rotation of the door body 23, the interval (C1-C2) increases in proportion to the angle at which the door opens.
In this example, with the rotation of the door body 23, the connecting shaft 12 slides through the arm opening 14 provided in the arm 6,
The coil spring 7 moves in the hinge pin direction by an interval (C1-C2), and the pressing member 8 fixed to the connecting shaft 12 presses the coil spring 7. Therefore, elastic energy is accumulated in the coil spring 7, and the contracted coil spring 7 causes a change in the distance between the hinge rotation fulcrum B1 and the center C of the connection shaft, that is, the distance (C1).
Since the elastic energy acts in the direction to eliminate -C2), a rotational urging force acts on the door body 23, and the door can automatically return to the home position.

In this embodiment, a pair of hinge pins 4a and 4b are erected on the support plate 2 as a support member, and the first and second arm rotation fulcrum parts B (the hinge rotation fulcrum parts B1 and B1).
Since B2) is formed, the distance between the hinge rotation fulcrum B2 and the connection shaft center C is changed in addition to the change in the distance between the hinge rotation fulcrum B1 and the connection shaft center C described above. That is, when the door main body 23 rotates clockwise in FIG.
Moves on an arc-shaped C-C2 locus whose radius is A-C in the same manner as described above (not shown). Also in this case, the distance between the door rotation fulcrum part A and the center of the connection shaft (AC).
Is constant irrespective of the rotational position of the door body 23, but the distance between the hinge rotation fulcrum B2 and the connection shaft center C (B−
C2) is the distance (B2) between the hinge rotation fulcrum B2 and the connecting shaft center C at the door initial position as the door body 23 rotates.
−C1), that is, when the door main body 23 is opened around the door rotation fulcrum A, the connecting shaft center C becomes C
2, C2, ... move on the trajectory, but distance (B2-C2)
Is gradually shorter than the distance (B-C1) between the hinge rotation fulcrum B2 and the connecting shaft center C at the door initial position.

Accordingly, as the door body 23 rotates, the interval (C1-C2) increases in proportion to the angle at which the door opens,
As described above, with the rotation of the door body 23, the connecting shaft 12 slides through the arm opening 14 provided in the arm 6 and moves by the interval (C1-C2) in the hinge pin direction.
The pressing member 8 fixed to the connecting shaft 12 presses the coil spring 7. Due to the contracted coil spring 7, elastic energy acts in a direction in which the distance between the hinge rotation fulcrum portion B2 and the center C of the connection shaft is changed, that is, the direction in which the interval (C1-C2) is eliminated. It can automatically return to the home position.

As described above, in the case of the outward opening, the outer hinge pin 4a becomes the hinge rotation fulcrum B1.
In the case of opening inward, the inner hinge pin 4b becomes the hinge rotation fulcrum B2. For this reason, the distance change between the hinge rotation fulcrum B and the center C of the connection shaft (C1-C2) regardless of whether the opening is inward or outward.
Occurs similarly. Therefore, no matter which side the door is opened, the coil spring 7 is pressed in the same manner, so that a rotational urging force acts on the door body 23 by the elastic energy, and the door can automatically return to the home position. In particular, even if the door returns vigorously and exceeds the fixed position, the door can always return to the fixed position by setting the rotation fulcrum to two positions, the rotation fulcrum B1 and the rotation fulcrum B2. .

In this embodiment, it is possible to use separate coil springs for both the outward opening and the inward opening, but in the case of the embodiment described above, only one coil spring is used. Therefore, it is possible to cope with both inward and outward opening.

FIG. 5 shows a second embodiment of the present invention. The above-described embodiment uses a coil spring as the elastic body of the hinge device. In this embodiment, a plate is used instead of the coil spring. The spring 30 is used.

That is, the hinge device 1 shown in FIG. 5 includes a door rotation fulcrum A formed by rotatably mounting a door shaft 13 on the support plate 2 and a pair of hinge pins near the door rotation fulcrum A. The first and second arm rotation fulcrum parts B (hinge rotation fulcrum parts B1 and B2) which are formed upright, and the connection shaft 12 provided on the door which is outside the rotation of the door shaft 13 are provided. In this example, a connecting shaft slide notch 36 serving as a guide groove is formed in the plate-like arm 32, and the connecting shaft 12 is engaged with the connecting shaft slide notch 36 to perform the connection. The shaft 12 is provided so that the notch 36 for connecting shaft slide is movable, and furthermore, between the connecting shaft 12 and the first and second arm rotation fulcrum B (hinge rotation fulcrum B1, B2). Provided with a leaf spring 30 as an elastic material. It is.

This embodiment is also basically the same as the previous embodiment. When the door body 23 rotates and the connecting shaft 12 moves around the door shaft 13 as a fulcrum, the connecting shaft 12 and the first and second shafts are moved. 2 arm rotation fulcrum B (hinge rotation fulcrum B1,
B2), the leaf spring 30 is compressed and the elastic force of the leaf spring 30 causes the door to be rotationally urged.

In this embodiment, a support shaft 2, a door mounting plate 3, a hinge shaft 31 having two hinge pins and joined to the support plate 2, a plate arm 32, a leaf spring support 33, a leaf spring 30, and a leaf A flat washer 34 for fixing the spring 30, a pan screw 35 for fixing the leaf spring 30, and E
The retaining ring 11 is provided.

The plate 32 is connected to the connecting shaft 1 as shown in FIG.
2 is provided with a cutout portion 36 for sliding, and two semicircular cutout portions 37 meshing with the hinge pin. FIG. 6 shows a plate-like arm 3 used in this example.
FIG.

A spring support 33 is spot-welded to the plate-shaped arm 32. One end of the leaf spring 30 is attached to the spring support 33 by a flat washer 34 and a pan screw 35. The other end of the leaf spring 30 is attached to the connecting shaft 12 by the flat washer 34 and the E-shaped retaining ring 11.

As described above, the leaf spring 30 is formed by using the leaf spring instead of the coil spring.
Operates in the same manner as the coil spring 7 in the hinge device of the previous example, so that a rotational urging force for returning the door to the initial position acts, whereby a hinge device that can cope with a double door can be obtained.

In the specific example described above, the door body 2
Although the case where the coil spring 7 and the leaf spring 30 are compressed as the 3 rotates is described as an example, the elastic body may be configured to be pulled.

[0040]

Since the present invention is constructed as described above, it is possible to uniformly apply a rotational biasing force to both the inside and the outside by a relatively simple structure, and therefore, to keep the double door at a fixed position. A hinge device that can be stopped can be obtained.

As described above, according to the present invention, the door body can be attached instead of attaching the hinge device to the floor surface as in the prior art, so that it can be used regardless of the floor shape.
A hinge device which does not hinder maintenance such as cleaning can be obtained. An elastic body that positions the initial position of the door
The rotation fulcrum of the door itself is separate from the rotation fulcrum of
Since it is provided, the structure of the hinge device is simplified.
be able to. Further, since the hinge device of the present invention obtains the rotation urging force by using the elastic force due to the expansion and contraction of the elastic body, the elastic body is not subjected to an excessive force, the durability of the elastic body is improved, and the reliability is improved. It is possible to provide a flexible hinge device.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an attached state of a hinge device according to the present invention.

FIG. 2 is an exploded perspective view showing a specific example of a hinge device according to the present invention.

FIG. 3 is a front view showing an attached state of the hinge device according to the present invention.

FIG. 4 is a plan view showing a door opening and closing process in a state where the hinge device according to the present invention is mounted.

FIG. 5 is a front view showing an attached state of a hinge device according to a second specific example of the present invention.

FIG. 6 is a plan view showing a plate-like arm.

[Explanation of symbols]

 A Door rotation fulcrum B1, B2 Hinge rotation fulcrum C Door hinge connection shaft 1 Hinge device 2 Support plate 3 Door mounting plate 4 Hinge pin 4a Opening hinge pin 4b Inner opening hinge pin 5 Hinge pin receiving member 6 Arm 7 Coil spring 8 Pressing Member 9 Cap 10 Machine screw 11 E-shaped retaining ring 12 Connecting shaft 13 Door shaft 14 Arm opening 15 Arc-shaped groove 16 Connecting shaft insertion hole 17 Hinge pin holding hole 18 Sleeve bearing 19 Hinge pin receiving member fixing hole 20 Screw fixing Hole 21 Hinge pin receiving portion 22 Door support portion 23 Door body 24 Machine screw 25 Door mounting plate 26 Door shaft 27 Upper door shaft mounting plate 28 Upper support portion 29 Sleeve bearing 30 Leaf spring 31 Hinge shaft 32 Plate arm 33 Spring support material 34 Flat washer 35 Pan head screw 3 6 Notch for connecting shaft slide 37 Notch for hinge pin

Claims (2)

(57) [Claims] 1. A hinge device provided with an arm for applying a rotational urging force to a door, comprising: a door rotation fulcrum formed by rotatably mounting a door shaft on a support member; and a hinge provided near the door rotation fulcrum. That can be
First and second arm rotation fulcrum portions, which are separate members from the door shaft, which are formed by erection of a pair of two hinge pins on the support member, and a door that is rotated outside the door shaft. A connection shaft provided and pivotally supported by a member mounted on the arm; and an elastic material interposed between the member mounted on the arm and the first and second arm rotation fulcrum portions. When the door rotates and the connection shaft moves around a door shaft as a fulcrum, the distance between the connection shaft and the first and second arm rotation fulcrum portions is reduced, and the elasticity is reduced accordingly. A hinge device wherein a member is compressed and the door is rotated and biased by its elastic force. 2. A hinge device having an arm for applying a rotational urging force to a door, comprising: a door rotation fulcrum formed by rotatably mounting a door shaft on a support member; and a hinge provided near the door rotation fulcrum. That can be
First and second arm rotation fulcrum portions, which are separate members from the door shaft, which are formed by erection of a pair of two hinge pins on the support member, and a door that is rotated outside the door shaft. A connecting shaft provided to engage with a guide groove formed in the arm; and an elastic member interposed between the connecting shaft and the first and second arm rotation fulcrum portions, When the door rotates and the connection shaft moves around the door shaft as a fulcrum, the space between the connection shaft and the first and second arm rotation fulcrum portions is reduced, and the elastic material is compressed accordingly. The hinge device wherein the door is turned by the elastic force.