JPS5828129Y2 - Folding door locking device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a locking device for a folding door that removably fixes the opening/closing end of the folding door, which is formed by bendably connecting a plurality of panels, to the doorstop.

A conventional locking device for a folding door of this kind is as shown in FIG. 2, for example, and has a plurality of panels 1 as shown in FIG.
A locking piece 6 having a locking step 5 at the tip is attached to the opening/closing end 4 of the folding door 3, which is foldably connected by a hinge body 2 and folded sequentially from the end. The door stop portion 9 is provided with a locking receiving portion 8 which is fixed in a vertically swingable manner and with which the locking step portion 5 engages in a detachable manner.

In this conventional example, a spring 1 is provided below the lock piece 6.
Although 0 is provided, the lock piece 6 is short.

It simply rotates around the rotation shaft 7 against the springiness of the ring 10 and swings up and down. Therefore, the distance between the door stop portion 9 and the vertical frame 11 on the opposite side and the folding door 3 If the widths of the locking step 5 and the locking receiver 8 do not match, there may be inconveniences such as the locking stepped portion 5 and the locking receiving portion 8 not being able to engage, or even if they are engaged, the folding door 3 may not be fully extended and may move loosely. Moreover, since the impact upon engagement is repeatedly applied to the rotating shaft 7, the rotating shaft 7 is worn out or damaged after long-term use, resulting in poor durability.

The locking device for a folding door of the present invention was devised in view of the above points.
A locking piece having a locking step at its tip is fixed via a spring body, so that the locking piece can swing freely against the spring property and can move forward and backward, and the locking step can be freely attached and detached. This device is provided with a locking receiving portion that engages with the door stop, and eliminates the above-mentioned drawbacks of the conventional device.

Hereinafter, the present invention will be explained based on the drawings.

The locking device for a folding door shown in FIGS. 3 and 4 is an embodiment of the present invention, and a locking step 5 is attached to the opening/closing end 4 of the folding door 3 similar to the conventional one shown in FIG. A locking piece 6 having a shape is fixed via a spring-like spring body 12, so that the locking piece 6 can swing freely against the spring property and can move forward and backward, and the locking step portion 5 can be attached and detached. A lock receiving portion 8 that engages with the door stop portion 9 is provided on the door stop portion 9.

Further, in this embodiment, the lock piece 6 is housed in the storage space 13 formed in the opening/closing end portion 4, and
2 is provided at the position of the central axis of rotation of the lock piece 6, and an unlocking pin 14 is provided below the lock piece 6. is pushed up to disengage the locking step portion 5 and the locking receiving portion 8.

Therefore, in this embodiment, even if there is a slight dimensional error in the distance between the door stop portion 9 and the vertical frame 11 on the opposite side and the width of the folding door 3, and the width of the folding door 3 does not match, the spring properties of the spring body 12 are maintained. Since the dimensional error is absorbed by the amount that the locking piece 6 can move back and forth against, the locking step portion 5 and the locking receiving portion 8 can be engaged, and after the engagement, the spring body Since the folding door 3 is in an extended state by the spring body 12, the folding door 3 does not rattle or move, and the impact upon engagement is absorbed by the spring body 12, so that the folding door 3 is sufficiently durable. .

In addition, in the locking device for a folding door of the present invention, the spring body 12 may be in the shape of a plate spring as shown in FIG. The lock piece 6 is pushed up using the lock pin 14 to disengage the locking step portion 5 and the locking receiving portion 8.

As described above, the folding door lock device of the present invention fixes a lock piece having a locking step at the tip to the opening/closing end of the folding door via a spring body, and makes the lock piece springy. The doorstop can swing freely and move forward and backward, and the doorstop is provided with a locking receiving part that the locking step part engages with in a detachable manner. Even if there is a slight dimensional error that does not fit, the dimensional error is absorbed by the amount that the lock piece can move back and forth against the springiness of the spring body, so the locking step and locking After the folding door is engaged, the folding door is in a stretched state by the spring body, so the folding door does not rattle or move. Since it is absorbed by the water, it has sufficient durability.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing the entire folding island, FIG. 2 is a vertical cross-sectional view of a main part showing a conventional example, and FIGS. 3 and 5 are longitudinal cross-sectional views of main parts showing different embodiments of the present invention. FIG. 4 is a cross-sectional view of a main part of the embodiment shown in FIG. 3. In the figure, 1 is a panel, 2 is a hinge body, 3 is a folding door, 4 is an opening/closing end, 5 is a locking step, 6 is a lock piece, 7 is a rotating shaft, 8 is a locking receiver, and 9 is a locking part. Door stop part, 10 is a spring, 11 is a vertical bar, 12 is a spring body, 13 is a storage space,
14 is an unlocking pin.

Claims (1)

[Scope of utility model registration request] A lock piece having a locking step at its tip is fixed to the opening/closing end of the folding door via a spring body, so that the lock piece can swing freely against the spring property and can move forward and backward, and A locking device for a folding door, in which a locking receiving portion is provided in a door stop portion with which a locking step portion is removably engaged.