JPH10184175A - Automatic half-open hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a hinge at low cost and smoothly operate it by providing a pin, which is energized by a spring attached to a rear side and brought in contact with one of two fitting plates, in the other fitting plate and automatically opening a door to a half-open state by a resiliency of the spring. SOLUTION: Shaft cylinder parts 2, 3 are fitted around a hinge shaft 1, and fitting plates 4, 5 which are hinged so as to be freely opened/closed are provided. Secondly, a pin 7 with flange part 7' is slidably fitted in a through hole 6 in one fitting plate 4. Thirdly, the pin 7 is energized by a spring 8 provided in the rear side of the fitting plate 4 and the flange part 7' is so formed as to project to the other fitting plate 5 till the flange part 7' is brought in contact with the rear edge of the through hole 6. The spring 8 is fitted in a cylinder 9 which is internally provided with the fitting plate 4 in the rear side of the through hole 6 and a pressure adjustment screw 10 also used as a spring receiver is threadly engaged with the inner end so as to adjust the resiliency of the pin 7. This constitution can exert buffer action effectively and provide smooth operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an automatic half-open hinge which automatically opens a hinge supporting the door when the door is closed and releases the door so that the door is half-open. The present invention is characterized in that a half-open state is formed by a pin urged by a spring between two mounting plates supported by a hinge shaft so as to be openable and closable.

[0002]

2. Description of the Related Art A conventional automatic half-open hinge incorporates a coil spring between a hinge shaft and a shaft cylinder of a mounting plate, and the door is half-opened by restoring force of the spring, or is fitted to the hinge shaft. One of the mounting plates is guided by a sloped cam that is inclined along the rotation direction, and the door that has been released from the latch is lowered by its own weight to make it half open. I have.

[0003]

In the former method, a coil spring is installed in the shaft tube portion, a coil spring is fitted between the hinge shaft and the shaft tube portion, and one end of the spring is hooked on one mounting plate. However, since the other end needs to be spring-loaded on the hinge shaft or the other mounting plate, there is a disadvantage in that the structure is complicated and expensive.

The latter, in which the shaft cylinder contacts the cam slope, is inferior in durability because the mating face with the cam is not worn each time the door is opened and closed. There are drawbacks to be formed. In addition, since a force for raising the cam slope is applied at the time of opening and closing the door, there is a drawback that the resistance is increased.

[0005] Therefore, it has been a problem to be solved to simplify the half-opening structure of this kind of hinge so that it can be manufactured at low cost, to increase the durability and to operate smoothly. .

[0006]

SUMMARY OF THE INVENTION Accordingly, in the present invention, a spring attached to a back surface of one of two mounting plates hinged to a hinge shaft so as to be openable and closable by fitting a shaft cylinder portion to the hinge shaft is provided. hand,
Another object of the present invention is to provide an automatic half-open hinge in which a pin abutting on the other mounting plate is slidably provided, and the door on which the hinge is mounted is automatically opened in a half-open state by the repulsive force of the spring.

The hinge of the present invention comprises a spring on one of the mounting plates,
Since only a pin biased by the spring is provided, the structure is simplified, and it can be manufactured at a lower cost than the conventional coil spring type. In addition, there is no abrasion as in the case of the slope cam type, and the durability is high and the operation is smooth.

In the present invention, a leaf spring may be used as the spring for urging the pin. A cylinder is mounted on one back side of the mounting plate, and a coil-shaped spring is fitted into the cylinder. A screw member for adjusting spring pressure, which doubles as a spring receiver, is screwed to the inner end of the cylinder to adjust the weight of the door supported by the hinge or the repulsion force of the pin according to the frictional resistance. It is convenient for construction. The present invention has solved the above-mentioned problems as described above.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the hinge T of the present invention is
The two mounting plates 4, 5 hinged so that the shaft cylinder portions 2, 3 which are vertically overlapped with each other are fitted and opened and closed with each other.
A pin 7 with a flange portion 7 ′ is slidably fitted in a through hole 6 provided in one of the mounting plates 4, and the pin 7 is mounted on a spring 8 provided on the back side of the mounting plate 4. It is configured to be urged and protrude toward the other mounting plate 5 until the flange portion 7 ′ contacts the back edge of the through hole 6.

In this embodiment, a coil-type spring 8 is used, and the spring 8 is fitted into a cylinder 9 provided integrally with the mounting plate 4 on the back side of the through hole 6. A pressure adjusting screw member 10 also serving as a spring receiver is provided at the inner end.
Are screwed into each other, so that the repulsive force generated in the pin 7 can be adjusted to be strong or weak.

The hinge T constructed as described above is used mainly for supporting a toilet door, similarly to the conventional hinge. For example, as shown in FIG. 2, the mounting plates 4 and 5 are screwed between the door D with the latch R and the partition habit W, and the door D is supported by the hinge T. When the door D locked by the latch R is unlocked as shown by the imaginary line in the figure,
The door D that has been released from the latching, as shown by the solid line in the figure, repels the other mounting plate 5 with the pin 7 due to the restoring force of the spring 8 that was compressed at the time of closing, and automatically opens halfway. When the door D is closed from the open position, the door D automatically returns to the half-open state unless locked by the latch R.

According to the hinge T used as described above, when the door is closed, the toilet is in use, and when the door is half-open, it is possible to visually recognize that the toilet is empty. Therefore, it is not necessary to additionally provide a display mechanism for indicating that the door is empty during use.

Although the present invention is extremely useful for a toilet door as described above, it is not particularly limited to its use. Further, the structure of the hinge itself and the structure for attaching the spring for urging the pin are not limited to the embodiments.

[0014]

As described above, the present invention has a simple structure in which a pin biased by a spring is provided on one side of a mounting plate hinged to a hinge shaft, so that it is easy to manufacture. Hinge costs can be reduced.

Further, as compared with the conventional spring-type hinge in which a coil spring is mounted around the hinge axis, the repulsive force of the pin acts on the final stroke when the door is closed, so that the cushioning effect works effectively. Smooth operation that hardly affects the operation during opening and closing can be performed. The present invention has excellent effects as described above.

[Brief description of the drawings]

FIG. 1 is a partially cutaway cross-sectional view showing an embodiment of the present invention in a half-open state.

FIG. 2 is a partially cutaway plan view showing a use state of the embodiment.

[Description of sign]

 T Hinge 1 Hinge shaft 2 Shaft tube 3 Shaft tube 4 Mounting plate 5 Mounting plate 6 Through hole 7 Pin 7 'Flange 8 Spring 9 Cylinder 10 Pressure adjusting screw also serving as spring receiver D Door W Partition habit R Latch

Claims (2)

[Claims] 1. A spring attached to a back side of one of two mounting plates hinged so that a shaft cylinder portion is fitted to a hinge shaft so as to be openable and closable and abuts on the other mounting plate. An automatic half-open hinge in which a pin is slidably provided and a door to which the hinge is attached is automatically opened in a half-open state by the repulsive force of the spring. 2. A cylinder is mounted on one back side of the mounting plate, and the coil-shaped spring is fitted into the cylinder, and a screw member for adjusting a spring pressure, which also serves as a spring receiver, is provided on the cylinder. The hinge according to claim 1, wherein the hinge is screwed to the inner end.