JPH0925757A - Lock device for door of furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a door from being arbitrarily opened when an earthquake occurs. SOLUTION: A knob 3 is provided on one door side of two doors provided openably into a double door shape on the outside near the end section on the opposite side to the rotation center side of the door, and the knob 3 is made rotatable around the horizontal axis integrally with a horizontal shaft 4 longitudinally penetrating the door in the thickness direction. A hook 5 is fitted to the shaft 4 on the inside of one door, and a coupling section 6 with a flange to be coupled with the hook section 5a of the hook 5 when two doors are closed is provided on the inside of the other door.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door locking device for furniture or the like, which prevents the door of a cupboard or the like from opening without permission due to an earthquake or the like.

[0002]

2. Description of the Related Art Conventionally, it is well known that a door of a cupboard or the like is kept in a closed state by an attractive force of a magnet. However, when a big earthquake etc. occurs, the dishes stored inside move to the door side,
There was a problem that the door was pushed open against the attraction force of the magnet, dropped on the floor surface and damaged, and the broken pieces were scattered on the floor surface.

[0003]

SUMMARY OF THE INVENTION The present invention solves such a problem, and an object thereof is to prevent the door from opening without permission even when an earthquake or the like occurs.

[0004]

In order to solve this problem, the present invention is directed to one door side of two doors provided to be openable and closable in the shape of a double door, on the side opposite to the rotation center side of the doors. A knob is provided on the outside in the vicinity of the end, and the knob is configured to be rotatable around a horizontal shaft core integrally with a horizontal shaft that penetrates the door in the thickness direction, and is hooked to the shaft inside one door. The lock device for a door of furniture or the like is provided with an engaging portion that is attached to the inside of the other door and that engages the tip portions of the hooks when the two doors are closed.

With this structure, the two doors are closed, and in that state, the knobs on one door side are rotated to engage the tip portions of the hooks with the engaging portions on the other door side, whereby the two doors are closed. The closed state is maintained, and when an earthquake or the like occurs, the dishes stored inside the door move to the door side, and even if you try to push the door open, the door will not open and it is safe.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. First, the first embodiment shown in FIGS. 1 to 4 will be described. Reference numerals 1 and 1 denote two doors that are openably and closably provided in a furniture body 2 such as a cupboard in a double-door shape. The knobs 3 are provided on the outer sides in the vicinity of the ends on the side opposite to the rotation center side. The knobs 3, 3 of the two doors 1, 1 having a double-door shape are located at the same height, and each knob 3 is attached to the front end of a horizontal shaft 4 which penetrates the door 1 in the thickness direction. . The knob 3 on the one door 1 side is rotatable around the horizontal axis integrally with the shaft 4, and the knob 3 on the other door 1 side does not rotate. One end of a hook 5 is attached to the rear end of the shaft 4 of the rotating knob 3 on the one door 1 side so that the hook 5 rotates together with the knob 3. The other end of the hook 5 is hook-shaped, and the knob 3 on one door 1 side is in a state where the two doors 1 and 1 are closed.
When the hook 5 becomes horizontal by turning, the hook-shaped portion 5a at the other end engages with the flanged engaging portion 6 attached to the rear end of the shaft 4 of the knob 3 on the other door 1 side. The two doors 1 and 1 are held in the closed state. The flanged engaging portion 6 is configured by providing two flange portions 6a, 6a in parallel with the inner surface of the door 1 at the rear end portion of the shaft 4 on the side of the other knob 3, and the two flange portions 6a, 6a. The hook-shaped portion 5a of the hook 5 engages with the shaft 4 located therebetween. Reference numeral 7 is a nylon washer interposed between each of the knobs 3 and the door 1, and is provided especially for improving the sliding of one knob 3 on the rotating side.

As described above, the two doors 1 and 1 are closed, and in that state, the knob 3 on one door 1 side is turned so that the hook-shaped portion 5a of the hook 5 is pivoted on the knob 3 on the other door 1 side. The two doors 1 and 1 are kept in a closed state by engaging with the flanged engaging portion 6 at the rear end of the table 4, and an earthquake or the like occurs, and tableware stored in the furniture main body 2 or the like. Moves toward the doors 1,1 and pushes the doors 1,1 open, but the doors 1,1 do not open.

Next, the second embodiment shown in FIGS. 5 to 7 will be described. In the first embodiment, the hook-shaped portion 5a of the hook 5 that interlocks with the knob 3 on the one door 1 side. Is configured to maintain the closed state of the two doors 1 and 1 by engaging with the flanged engagement portion 6 at the rear end of the shaft 4 of the knob 3 on the other door 1 side. In the second embodiment, the hook 5 is not provided with a hook-shaped portion and has a flat tip, and the receiving member 8 mounted on the inner surface of the other door 1 is used.
It is configured such that the tip of the hook 5 is fitted into the engaging recess 8a formed between the inner surface of the other door 1 and the inner surface of the other door 1. The same effects as those of the first embodiment can be obtained by the second embodiment.

[0009]

As described above, according to the present invention, the two doors are closed, and in that state, the knob on one door is turned to engage the tip of the hook with the engaging portion on the other door. By doing so, the two doors are kept closed, an earthquake etc. occurs, and the dishes stored inside the door move to the door side, and the door can be opened even if you try to push the door open. Not safe.

[Brief description of drawings]

FIG. 1 is a front view seen from the outside of a door in a first embodiment of the present invention.

FIG. 2 is a rear view seen from the inside of the door.

FIG. 3 is a sectional view of the main part.

FIG. 4 is a perspective view of a lock device in which the door is omitted.

FIG. 5 is a front view seen from the outside of the door in the second embodiment of the invention.

FIG. 6 is a rear view seen from the inside of the door.

FIG. 7 is a sectional view of the main part.

[Explanation of reference numerals] 1 door 2 furniture body 3 knob 4 shaft 5 hook 5a hook-shaped portion 6 engaging portion with flange 6a collar portion 8 receiving member 8a engaging concave portion

Claims (1)

[Claims] 1. A knob is provided on one door side of the two doors provided so as to be openable and closable in a double door shape, and is provided on the outer side in the vicinity of an end portion on the side opposite to the rotation center side of the door. It is configured to be rotatable around a horizontal shaft core integrally with a horizontal shaft that penetrates back and forth in the thickness direction. A hook is attached to the shaft inside one door, and two doors are installed inside the other door. A lock device for a door of furniture or the like, which is provided with an engaging portion that engages a tip portion of the hook in a closed state.