JPH07103741B2 - Hinges for folding doors - 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 for a folding door provided with a nodal mechanism for holding a posture at each of a fully open position and a fully closed position.

[0002]

2. Description of the Related Art A hinge for a folding door provided with a nodal mechanism is known, for example, from Japanese Utility Model Laid-Open No. 1-76997. In the fully open state where the pair of hinge plates are adjacent to each other in the same plane, the nodal mechanism keeps the adjacent door panels in a flat posture and keeps the folded posture when fully closed to prevent the door panels from moving. . Above and below the bending edge of each hinge plate, there are provided stopper claws that come into contact with each other in a fully opened state and restrict further opening of both hinge plates.

[0003]

As described above, if the door panels are connected by the hinge having the pair of stopper claws,
It should be possible to hold the entire folding door flush when in the fully opened state. However, in reality, there are variations in the mounting position of the runner, tilting of the hinge center axis, lateral displacement, etc.
Each door panel is slightly bent at the connecting position, and when viewed as a whole folding door, it is often a continuous mountain shape. There is nothing but reattaching the runner and hinge to correct such a state, but it takes a lot of time and effort to do so.

An object of the present invention is to make it possible to adjust the opening limit angle of a pair of hinge plates to be large or small so that the connecting portion of the door panel can be adjusted to move in and out, whereby the entire folding door can be accurately moved. It is to keep the surface flush and improve construction quality.

[0005]

A hinge for a folding door according to the present invention has a pair of hinge plates 1 and 2 and a hinge shaft 3 connecting both hinge plates 1 and 2, and a space between the pair of hinge plates 1 and 2. Is provided with a nodal mechanism 4 for holding the postures of the hinge plates 1 and 2 at the fully open and fully closed positions.
It has a stopper mechanism 5 that regulates the opening limit of both hinge plates 1 and 2, and the stopper mechanism 5 has an adjusting screw 14 provided at the shaft end of the hinge shaft 3 and the adjusting screw 1.
4 is moved along the central axis of the hinge to adjust the distance between the stopper claws 12 and 12, and the hinge plates 1 and 2 are provided so as to face each other while being in contact with the adjustment piece 13 in the fully opened state. It is required to be configured to include a pair of stopper claws 12 and 12. Specifically, it is required that the adjusting screw 14 is screwed into the hinge shaft 3 and that the adjusting piece 13 is caulked and fixed to the operating portion 19 of the adjusting screw 14 so as to be relatively rotatable.

[0006]

[Operation] In the fully opened state, the pair of hinge plates 1 ・
2 is an action of the moderation spring 10 of the nodal mechanism 4, and receives a force in a direction in which the pair of stopper claws 12 and 12 approach each other. That is, the pair of stopper claws 12 and 12 are constantly in pressure contact with the adjustment piece 13 sandwiched between the two. When the adjustment piece 13 is moved up or down by the adjustment screw 14 in this state, the facing distance between the stopper claws 12 changes. As a result, the opening limit angle between the pair of hinge plates 1 and 2 changes greatly, and the amount of refraction of the door panel 23 when fully opened can be corrected.

[0007]

According to the present invention, the pair of stopper claws 12 are provided.
The adjustment piece 13 is provided between 12 and the adjustment piece 13 is moved up and down by the adjustment screw 14 so that the opening limit angle of the pair of hinge plates 1 and 2 can be changed to be large or small. Therefore, even if the door panel is bent at the connecting position when it is fully opened due to variations in the mounting positions and postures of the runner and hinges, this can be corrected and the entire folding doors can be made flush with each other. It is possible to improve the construction quality of the folding door as compared with the case of using the hinge. Moreover, since the refraction correction work at the connecting position can be performed while checking the state of the entire folding door while the hinge is still attached, the correction work can be performed quickly and accurately, and the folding door can be built as a whole. Can be done efficiently.

[0008]

1 to 7 show an embodiment of a hinge for a folding door according to the present invention. In FIG. 2, the hinge for the folding door is
A pair of left and right hinge plates 1 and 2, a hinge shaft 3 that connects the hinge plates 1 and 2 to each other such that they can swing relative to each other, and a nodal mechanism that holds the postures of the hinge plates 1 and 2 in the fully open and fully closed positions. 4 and a stopper mechanism 5 that regulates the opening limit angle of both hinge plates 1 and 2.

Both hinge plates 1 and 2 have hinge shafts 3
The bearing cylinders 6 and 7 that are externally fitted to are integrally formed by bending. The bearing cylinders 6 and 7 are provided in pairs one above the other with a space therebetween, and one pair is arranged with the other pair sandwiched vertically. The hinge shaft 3 includes the four bearing tubes 6 and
7 and the cam piece 9 of the nodal mechanism 4 pass vertically.

In FIG. 3, the nodal mechanism 4 comprises a cam piece 9 fixed to the hinge plate 2 on the right side in the drawing, and a moderation spring 10 fixed to the hinge plate 1 on the left side. The cam piece 9 is provided with a first locking surface 9a for receiving the moderation spring 10 in the fully open position and a second locking surface 9b into which the moderation spring 10 falls in the fully closed state. 9b is continuous with a gentle convex arc surface 9c. The moderation spring 10 is formed of a leaf spring, and the inverted U-shaped operation portion 11 provided at one end of the moderation spring 10 is always in external contact with the cam piece 9,
It is attached to the hinge plate 1. In the fully open state shown in FIG. 3, the moderation spring 10 is elastically deformed and exerts a spring force, and the first locking surface 9a is inclined toward the moderation spring 10. Therefore, the pair of hinge plates 1
2 has an opening angle of 180 due to the spring force and its reaction force.
Even if it exceeds the degree, it receives the opening force. Reference numeral 23 is a door panel.

4 to 6, the stopper mechanism 5 includes a pair of stopper claws 12 provided above and below the bending edges of the hinge plates 1 and 2, and these stopper claws 1.
The adjustment piece 13 for adjusting the opening limit angle of both hinge plates 1 and 2 by changing the facing interval of 2 and the adjustment piece 13
It is composed of an adjusting screw 14 and the like for vertically adjusting and moving. The stopper claw 12 is provided so as to be flush with the main surface wall of each hinge plate 1 and 2, and is provided at a position displaced from the center of the hinge shaft 3. The adjusting piece 13 is made of a metal block having a wedge body 15 protruding from one side of the peripheral surface of the boss. As shown in FIG. 1, the adjusting piece 13 has a pair of inclined surfaces 1 on both sides of the wedge body 15.
6 is provided. A receiving surface 17 which is parallel to the inclined surface 16 is provided at the projecting end of the stopper claw 12. Adjustment screw 14
An operating portion 19, a flange 20, and a screw shaft 21 are integrally formed with the screw shaft 21, and the screw shaft 21 is screwed into a screw hole 22 provided at the shaft end of the hinge shaft 3 (see FIG. 6). The adjusting piece 13 is externally fitted to the operating portion 19 and is caulked and fixed so as to be relatively rotatable. Therefore, when the screw shaft 21 is tightened and loosened by operating the operation portion 19 with a tool such as a screwdriver, the adjusting piece 13 can move up and down together with the adjusting screw 14.

The hinge constructed as described above is used by being mounted on the inner side of the refraction of the door panel 23 as shown in FIG. In the fully open state, when the adjacent door panels 23 are bent, the upper and lower adjusting screws 14 of each hinge are loosened to move the adjusting piece 13 to the side away from the hinge shaft 3. Then, the stopper claw 12 abuts on a position where the pair of inclined surfaces 16 face each other at a narrow interval, so that the opening angle of the pair of hinge plates 1 and 2 can be expanded. Conversely, if the adjusting screw 14 is screwed into the hinge shaft 3 side,
The pair of stopper claws 12 are pushed by the adjusting piece 13, and the opening angle becomes smaller accordingly. Therefore,
By adjusting the opening limit angle of each hinge in accordance with the refraction state of the door panel 23, the folding doors can be aligned in the same plane.
If necessary, it is possible to intentionally refract the necessary parts such as emphasizing the design effect and the shadow.

FIG. 8 shows another embodiment of the stopper mechanism 5. This is because the adjusting screw 14 is provided integrally with the hinge shaft 3,
The compression spring 25 and the adjusting piece 13 are externally fitted to the adjusting screw 14, and the adjusting nut 26 is screwed into the shaft end side of the adjusting screw 14.

FIG. 9 shows another embodiment of still another stopper mechanism 5. This is because the adjusting screw 14 is provided integrally with the adjusting piece 13, the adjusting screw 14 is supported by the hinge shaft 3 and the bearing portion 7a so as to be movable in the axial direction, and the adjusting nut provided between the hinge shaft 3 and the bearing cylinder 7 is provided. The adjustment screw 14 can be operated up and down with 26.

In addition to the above, only one of the inclined surface 16 and the pair of receiving surfaces 17 may be inclined, or both the pair of receiving surfaces 17 may not be inclined.
Furthermore, the inclination direction of the inclined surface 16 may be upside down, and the stopper mechanism 5 may be provided only on one of the upper and lower ends of the hinge.

[Brief description of drawings]

1 is a view showing a stopper mechanism taken along the line AA in FIG.

FIG. 2 is a front view of a hinge for a folding door.

FIG. 3 is a sectional view taken along line BB in FIG.

FIG. 4 is a view on arrow C in FIG.

FIG. 5 is an exploded perspective view of a stopper mechanism.

6 is a cross-sectional view taken along the line DD in FIG.

FIG. 7 is a plan view of a folding door.

FIG. 8 is a sectional view showing another embodiment of the stopper mechanism.

FIG. 9 is a sectional view showing still another embodiment of the stopper mechanism.

[Explanation of symbols]

 1.2 hinge plate 3 hinge shaft 4 nodal mechanism 5 stopper mechanism 12 stopper claw 13 adjustment piece 14 adjustment screw

Claims (2)

[Claims] 1. A pair of hinge plates 1 and 2 and a hinge shaft 3 connecting both hinge plates 1 and 2 are provided, and both hinge plates 1 and 2 are fully opened and fully closed between the pair of hinge plates 1 and 2. Is a hinge for a folding door provided with a nodal mechanism 4 that holds the posture at each position, and has a stopper mechanism 5 that regulates the opening limit of both hinge plates 1 and 2, and the stopper mechanism 5 is a hinge shaft. 3, an adjusting screw 14 provided at the shaft end of the shaft 3, an adjusting piece 13 that is moved by the adjusting screw 14 along the central axis of the hinge to adjust the interval between the stopper claws 12, 12, and the hinge plates 1 and 2 The hinge for the folding door, which is provided in the first embodiment and includes a pair of stopper claws 12 facing each other in a state where the adjustment piece 13 is circumscribed in the fully opened state. 2. The hinge for a folding door according to claim 1, wherein the adjusting screw 14 is screwed into the hinge shaft 3, and the adjusting piece 13 is rotatably caulkedly fixed to the operating portion 19 of the adjusting screw 14.