JPH0522608Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hinge used for folding doors of furniture, fittings, etc., and relates to a hinge that can hold the folding door flush in the open position.

[Conventional technology]

As shown in Fig. 3, the conventional folding doors A, A can be adjusted between the folding position and the open position by attaching a folding door hinge C which pivotally connects a pair of mounting plates D, D to the folding end side. It is configured to be foldable.

[The problem that the idea attempts to solve]

However, in the above-mentioned folding door, a gap G may be formed between the folding door end faces B, B due to dimensional errors in manufacturing, assembly precision, etc. In such a case, in the open position, as shown by the dashed line in FIG.
It is unavoidable that the opening/closing torque of the folding doors A, A is applied to the gap G. As a result, folding doors A and A will overrun and bend too far in the opposite direction.
A defect occurred in which the folding doors A and A were not held flush.

Here, in the folding door hinge of Utility Model Application No. 60-68268 filed by the present applicant, the end surfaces of the mounting plates function as abutting surfaces, so the above-mentioned drawback can be overcome as long as the assembly position is accurate. It is. However,
In practice, since it depends on the skill of the operator, installation errors are unavoidable, and the above-mentioned defects still cannot be eliminated.

In addition, the door hinge device of Utility Model Publication No. 47-35175 has
Protrude the angle adjustment screw provided on a part of the hinge,
A technique has been disclosed in which the opening angle is adjusted by bringing a substantially L-shaped side portion of the door into contact with the angle adjustment screw. When the door was opened, the L-shaped side part came into contact with the angle adjustment screw due to the lever principle, and the L-shaped side part was easily deformed and damaged by large force. . This is published in Japanese Patent Publication No. 52-148760.
Even if it was combined with the folding door hinge of No. 2, the early damage structure of the angle adjustment screw was not an issue, and it could not be applied immediately.

Therefore, the present invention has been further devised to eliminate the above-mentioned drawbacks, and provides a hinge for a folding door that can maintain a flush posture in the open position even if there is an assembly error. That is the purpose.

[Means to solve the problem]

In order to achieve the above object, the folding door hinge according to the present invention has bearing arms protruding adjacent to a pair of mounting plates respectively attached to the folding end side of the folding door, and the bearing arms are attached to a shaft pin. One of the mounting plates is rotatably connected to the other mounting plate, and when the folding door is in the open position, a catch whose tip is inclined downward is biased and protruded toward the other mounting plate. It comes into contact with a receiving part protruding from the
One of the bearing arms is screwed with an angle adjustment screw that projects diagonally from the abutting surface of the other mounting plate and can hold each folding door flush.

[Effect of invention]

The pair of mounting plates are each fixed to the folding end side of the folding door, and rotational force is generated by the catch and the receiving part, so if there is a gap between the folding door ends, torque towards the gap side is unavoidable. . Therefore,
By screwing the angle adjustment screw on one side of the bearing arm and bringing its tip into oblique contact with the abutting surface of the other mounting surface, a counterforce will be generated against the rotational force, so the folding door will be flush. Adjust accordingly.

Thereafter, when the angle adjustment screw comes into contact with another mounting plate and the open position is held flush, the flush position is maintained by the catch that comes into contact with the receiving portion at the same time.

〔Example〕

1 and 2 of the drawings show an embodiment of a hinge for a folding door according to the present invention.

The folding door hinge 1 is constructed by attaching a pair of mounting plates 2 and 3 to the folding end surfaces of the folding doors A and A.
The folding doors A, A are configured to be freely foldable between a folding position and an open position. In this case, a gap G is created between the folding doors A and the end surfaces B and B of A.

The mounting plates 2 and 3 have bearing arms 4 and 5 protruding adjacent to each other on their respective surfaces, and are configured to be rotatable by shaft pins 6 inserted through the bearing arms 4 and 5. A female threaded hole 7 is formed in the inclined surface of one of the bearing arms 4, and an angle adjustment screw 8 is provided in this female threaded hole 7 diagonally with respect to the other mounting plate 3. The tip end 9 of the angle adjustment screw 8 is not protruding from the bearing arm 4. Furthermore, abutment surfaces 10 and 11 are formed on the end surfaces of the mounting plates 2 and 3.

In the figure, reference numeral 12 denotes a catch, which is provided on the surface of one mounting plate 2 and protrudes from the end face side toward the other mounting plate while being biased by a spring. 13 is a set screw,
14 is a catch surface which is abutted by the catch 12 as shown. As shown in the figure, the catch surface 14 is an inclined surface extending downward from the tip and applying a rotational force so that the end surfaces B and B come into contact with each other.
It is close to the shaft pin 6. As shown in the figure, the catch surface 14 and the angle adjustment screw 8 are spaced apart from each other by the same distance from the shaft pin 6. 15 is the other mounting plate 3
It is a catch receiving part that protrudes from the surface of.

According to the above configuration, the presence of the gap G causes the folding doors A, A to bend in opposite directions. At this point, screw the angle adjustment screw 8 into the other mounting plate 3.
It comes into contact with the abutting surface 11 of the protruding abutting surface 11 by a predetermined screwing amount.

When the folding door is opened to the open position in this state, the tip surface 9 of the angle adjustment screw 8 comes into contact with the abutting surface 11 of the other mounting plate 3, functioning as a stopper and preventing overrun. In this case, since the catch surface 14 and the distal end surface 9 of the angle adjustment screw 8 are not much different in distance from the shaft pin 6, the distal end surface 9 abuts against the abutting surface 11 with an appropriate force. Since a plurality of folding door hinges 1, 1 are attached at the upper and lower positions, the opening/closing torque is distributed.

In the above-mentioned embodiment, an example in which one angle adjustment screw 8 is attached is illustrated, but it is desirable to arrange two or several other angle adjustment screws on the upper and lower sides.

[Effect of idea]

As explained above, according to the present invention, even if there is a gap at the opening position of the folding door, it is possible to adjust the angle with the angle adjustment screw to prevent overrun when opening and maintain the folding door in a flush position. can.

At that time, by bringing the angle adjustment screw into contact with the abutting surface of the other mounting plate, and by making the contact force of the angle adjustment screw and the catching force almost the same, it is possible to remove the side of the door, etc. as in the past. It can be put into practical use for a long time without causing any damage.

[Brief explanation of drawings]

1 and 2 show a first embodiment of the folding door hinge according to the present invention, and FIG. 1 is a perspective view of the installed state;
FIG. 2 is an enlarged sectional view of the same, and FIG. 3 is a sectional view showing a conventional example. 1... Hinge for folding door, 2, 3... Mounting plate, 4, 5
...Bearing arm, 6...Axis pin, 7...Female screw hole,
8...Angle adjustment screw, 10, 11...Abutment surface, 1
2...Catch, 14...Catch face, 15...
Ukebe.

Claims (1)

[Scope of utility model registration request] Bearing arms are provided protrudingly adjacent to a pair of mounting plates respectively attached to both sides of the folding end of the folding door, and these bearing arms are rotatably connected by a shaft pin, On the mounting plate, when the folding door is in the open position, the catch whose tip is inclined downward is biased toward the other mounting plate and comes into contact with the receiving part protruding from the other mounting plate. A folding door hinge in which an angle adjustment screw is screwed onto one side of the mounting plate and projects diagonally from the mating surface of the other mounting plate to maintain each folding door in a flush position.