JPS5850040Y2 - furniture lock - Google Patents

Description

[Detailed description of the invention] This invention relates to a lock for furniture, and despite its relatively simple structure, it was devised to ensure the locked state and to increase the crime prevention effect. Hereinafter, one embodiment of the present invention will be described based on the drawings.A base 1 formed to be fixed to furniture has a housing part 3 that retractably accommodates a hanging body 2, which will be described later. and an accommodating groove 29 for accommodating the elastic body 7 which is communicated with the accommodating part 3 and intersects, for example, orthogonally to the sliding direction of the locking body 2 in the accommodating part 3.

The locking body 2 accommodated in the accommodation section 3 is made to face and match the cut groove 4 provided perpendicularly to the sliding direction in the accommodation section 3 and the accommodation groove 29 in each case of locking and unlocking. It is formed to have a pair of engaging recesses 5 and 6 that are provided in the opposite direction.

The rotating body 16 has a groove portion on one side of the plate body 30 that fits into the tip of the key 23 so that the latch body 2, which is urged in conjunction with the rotation of the key 23, appears and disappears. 31, and a key receiving portion 18 is formed on the other side, and bosses 17, which are fitted into the cut grooves 4, are respectively formed upright at positions apart from the axis of the rotating body 16.

Reference numeral 9 denotes a cap that fits the base 1 and closes it, and has a cylindrical portion 3 externally fitted onto the key receiving portion 18.
2 is erected, and a plurality of plates 12 having protrusions 15 are locked and housed on the inner wall of this cylindrical portion 32 via keyway-shaped stop portions 10.

Each plate 12 has a small circular hole 14 with a different diameter in its center and a cutout hole 13 continuous to the hole 14, while the top plate of the cylindrical part 32 has a small circular hole 14 with a different diameter. A lock hole 11 for inserting a key 23 is provided, and this lock hole 11 has an inner hole having a diameter that is the same as or somewhat larger than the maximum width of the lock hole insertion portion 24 of the key 23.

Each of the base 1, the locking body 2, the rotating body 16, and the cap 9 accommodates a coil-shaped elastic body 7 in a storage groove 29 in the housing portion 3 of the base 1, and a spherical locking body 8 therebetween. , presses the accommodated hanging body 2, and at the same time presses the hanging body 2.
The boss 17 of the rotating body 16 is fitted into the cut groove 4, and the lock body 33 is formed by closing and fixing these with the cap 9.

20 is a separate body from the lock main body 33 formed in this way, and is arranged on the front side of the furniture 26 in a manner well adapted to the plate thickness, and has a mounting hole 27 drilled to attach the lock to the furniture 26. It is an outer closing body that closes from the outside, and rotatably supports a rotary part 21 having a key insertion hole 22 having a cross-sectional shape substantially the same as the cross-sectional shape of the lock hole insertion part 24 of the key 23. The present invention is implemented by forming a furniture side lock in combination with the above.

In the figure, 19 is a connecting part where the base 1 and the root of the cap 9 are fixed, 25 is a notch in the lock hole insertion part 24,
When the lock hole insertion part 24 is located in the plate 12 part, by cutting out this notch part 25 so as to match the small circular hole 14, the key 23 inserted in the plate 12 part can be rotated. .

28 is a wood screw fixing the base 1 to the furniture 26.

Note that the cross-sectional shape of the groove portion 31 of the key receiving portion 18 in the rotating body 16 is not made to be the same as the cross-sectional shape of the lock hole insertion portion 24, but by making the center a circular hole, the key 23 can be inserted into the lock hole. Part 24
If only the portion near the leading edge of the rotor is fitted and locked onto the rotating body 16, the rotating body 16 may be rotated by the key 23 due to its relationship with the notch 25 of the key 23. Since it is also possible to prevent traffic from occurring, it can be made more effective in terms of crime prevention.

Since the present invention is constructed as described above, the base 1 is fixed to the inside of the furniture 26 with wood screws 28 or the like, and the outer closure body 20 is attached to the outside of the furniture 26 through the attachment hole 27. .

In use, the lock hole insertion part 24 of the key 23 is inserted through the key insertion hole 22 of the outer closure body 20 and the key 11 of the cap 9, and
and the small circular hole 14, and the tip of the key 23 is fitted into the groove 31 formed in the key receiving part 18 of the rotating body 16.

Since the notch 25 of the key 23 is cut out with a diameter smaller than the diameter of the small circular hole 14 of the plate 12, the key 23 rotates smoothly.

In this case, the shape of the notch 25 of the key 23 is the same as that of the plate 1 of the lock.
If the key 23 does not fit into the small circular hole 14 of No. 2 and has a larger diameter than the small circular hole 14, the plate is fitted and locked to the stop portion 10 via the protrusion 15 even if an attempt is made to forcibly rotate the key 23. 12 and cannot be rotated, so the rotating body 16
You can't even rotate it.

The shape of the notch 25 of the key 23 corresponds to the small circular hole 1 of each plate 12.
4, the key 2 fitted in the groove 31
The rotating body 16 can be rotated by the tip of 3,
A latch body 2 that responds to the rotation of the rotating body 16 via a boss 17
can be slid along the accommodating portion 3 of the base 1, so the hanging body 2 can be freely moved in and out of the base 1, and can be locked and unlocked. .

When locking, the locking body 8 pressed by the elastic body 7 fits into the engagement recess 6, and when unlocking, it fits into the other engagement detail 5, so that the locking body 2 The protruding state and retracted state can be ensured, and malfunctions can be prevented.

Moreover, since the locked state between the boss 17 of the rotating body 16 and the cut groove 4 of the locking body 2 at the time of locking is perpendicular to the sliding direction of the locking body 2, the locked state can be released by external force. It will never be locked.

Furthermore, the presence of the outer closure 20 allows the installation to be adapted well to the thickness of the furniture 26.

As described above, according to the present invention, it is possible to operate the lock reliably with a relatively simple structure, and furthermore, by changing the type and arrangement of the plates, it is possible to provide a variety of locks. This is effective.

[Brief explanation of drawings]

The drawings are examples: Fig. 1 is a side cross-sectional view of the lock when it is attached to furniture, Figs. 2 and 3 are partially exploded front views showing the operating state of the latch, and Fig. 4 is a side view of the key. Figure 5 is a cross-sectional view of the key along line GG, Figure 6 is a front cross-sectional view of the key along line B-B of Figure 1, Figure 7 is a cross-sectional view of the key along line C-C, and Figure 8 is a cross-sectional view of key along line D-D. Sectional view of stump, No. 9
The figure is an E-C cross-sectional view, and FIG. 10 is an F-C cross-sectional view. 1...base, 2...hanging body, 3...
...accommodating part, 4... cut groove, 5 and 6...
...Engagement recess, 7...Elastic body, 8...
Locking body, 9...Cap, 10...Stopping portion, 11...Lock hole, 12...Plate, 13...Cutout Hole, 14...Small circular hole,
15...Protrusion, 16...Rotating body, 17
...Boss, 18...Key holder, 19...
...Connection part, 20...Outer closure body, 21.
... Rotating part, 22 ... Key insertion hole, 23.
...Key, 24...Lock hole insertion part, 25...
...Notch, 26...Furniture, 27...
...Mounting hole, 28...Wood screw, 29...
- Storage groove, 30...Plate body, 31...Groove portion, 32...Cylindrical portion, 33...Lock body.

Claims (1)

[Scope of utility model registration request] Formed to be fixed to furniture, it has a storage part that accommodates the hanging body in a manner that it can freely come out and go out, and a storage groove for storing the elastic body that communicates with the housing part, crossing the sliding direction of the hanging body in this housing part. a cut groove provided perpendicularly to the sliding direction in the storage portion, and a pair of engagement recesses provided to face and match the storage groove in each case of locking and unlocking. A key receiving part is provided on one side and a boss is erected at a position away from the axis on the other side so that the latch body appears and disappears in conjunction with the rotational movement of the key. A rotary body and a cylindrical body having a lock hole and externally fitted into the key receiving part, the inner wall of which is carved with a keyway-shaped stop part, and a plate that matches the shape of the key to be inserted is fitted. By storing an elastic body in the storage groove of the base, it is pressed against the latching body through the latching body, and a rotating body is placed in the cut groove of the latching body. The lock body is formed by inserting the boss and fixing the entire lid closed with a cap, and the lock body is adapted to the thickness of the lock body to suit the plate thickness and is formed to be placed on the front side of furniture. A furniture lock comprising: an outer closing body;