JP2551292Y2 - Locking device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device, and more particularly, to a lock device which is used by being attached to a door such as a glass door of a show window case, and locks and unlocks the door.

[0002]

2. Description of the Related Art Conventionally, as this kind of lock device, there is one as shown in FIGS.

That is, as shown in FIG. 1, the lock device includes a cylinder lock 3b and a hole 23 into which the cylinder lock 3b can be inserted.
, A front plate 8b that can be attached to the front side of the glass door 5b, a nut 11b that can be screwed to a screw 24 on the outer peripheral surface of the cylinder lock 3b, a rotating plate 25, a washer 26, and a nut 27. And has a hole 28 into which the cylinder lock 3b can be inserted,
Back plate 6b that can be attached to the rear side of the glass door 5b
Rubber sheets 29, 29 interposed between the front plate 8b and the attached body, and between the attached body and the back plate 6b, respectively, and a cover body 30 for covering the rear side of the cylinder lock 3b. , 31.

In such a locking device, as shown in FIG. 7, the rotating plate 25 is inserted into and removed from a hole 33 formed in advance in a portion 32 to be installed on the lower surface side of the glass door, and locking and unlocking is performed. It is unlocked.

[0005]

However, such a lock device locks and unlocks the rotary plate 25 by inserting and removing the rotary plate 25 into and from a narrow hole 33 formed in advance in the installation portion 32. Therefore, when the glass door is misaligned due to a load or other factors due to long-term use, misalignment occurs between the rotating plate 25 and the narrow hole 33, and as a result, locking or unlocking is performed. There was a problem that it became impossible to do.

[0006] The narrow hole 33 as described above has a square hole shape.
Regardless of whether the 32 materials are wood or metal, the work itself of forming the holes has been extremely complicated.

[0007] The present invention has been made to solve all of the above problems, so that even if the glass door is slightly displaced, locking and unlocking are not disabled, and the installation portion is not disturbed. It is an object of the present invention to facilitate the work of forming a hole in a hole.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem, and a means for solving the problem is a lock device which can be attached to an attached body such as a glass door 5 or the like. A lock body 1 having a pin 2 protruding from a front surface side and having a pin 2 which can be protruded and retracted in a linear direction; and a hole 7 into which the cylinder lock 3 of the lock body 1 can be inserted. A back plate 6 attached to the lock body 1 while being interposed between the main body 1 and the attached body;
Is mounted on the surface opposite to the surface of the body to be mounted, and can be fitted onto the cylinder lock 3 so as to protrude the cylinder lock 3 toward the front side and can be inserted into the hole 7 of the back plate 6 so as to have an outer peripheral surface. A front plate 8 having a cylindrical body 9 on which a screw 10 is screwed is projected from the rear surface side, and a screw 12 which can be screwed to the screw 10 which is screwed on the outer peripheral surface of the cylindrical body 9 of the front plate 8. The nut 11 is provided on the inner peripheral surface and has an outer diameter larger than the diameter of the hole 7 of the back plate 6.

[0009]

The lock device constructed as described above is used with the front plate 8 installed on the front side of an attached body such as a glass door and the back plate 6 and the lock body 1 installed on the rear side. Things.

More specifically, a front plate 8 is installed on the front side of an object to be mounted such as a glass door, and the back plate 6 is externally fitted to the cylinder 9 of the front plate 8 while the rear side of the object to be mounted. After installing the back plate 6 on the outer surface of the cylinder 9 of the front plate 8,
Screw.

Next, the cylinder lock 3 of the lock body 1 is inserted into the hole 7 of the back plate 6, the hole of the attached body, and the cylinder 9 of the front plate 8. The cylinder lock 3 is protruded.

In this state, the lock body 1 and the back plate 6 are attached with screws or the like.

In this case, since the outer diameter of the nut 11 is larger than the diameter of the hole 7 of the back plate 6, the nut 11 is screwed into the cylinder 9 of the front plate 8 as described above. Thus, the back plate 6 is prevented from being detached from the cylinder 9 of the front plate 8.

[0014] After the lock device is mounted on the mounted body such as a glass door as described above, locking and unlocking become possible.

In this case, since the locking and unlocking are performed by the pin 2 provided in the lock body 1 and capable of protruding and retracting in a linear direction, the glass door is slightly displaced due to a load or other factors due to long-term use. However, the pins 2 can be reliably inserted into and removed from the holes formed in the installation portion in advance.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of a lock device according to one embodiment.

In FIG. 1, reference numeral 1 denotes a metal lock body, and a pin 2 is provided so as to be able to protrude and retract in a straight line.

Reference numeral 3 denotes a cylinder lock, which protrudes from the front side of the lock main body 1 and has a keyhole 4 formed at the center thereof.

Reference numeral 6 denotes a synthetic resin back plate mounted on the rear side of the glass door 5 as an attached body. The back plate 6 has a hole 7 through which the cylinder lock 3 of the lock body 1 can be inserted.

Reference numeral 8 denotes a metal front plate mounted on the front side of the glass door 5 as an attached body. The front plate 8 can be fitted into the cylinder lock 3 and can be inserted into the hole 7 of the back plate 6 and has an outer peripheral surface. A cylindrical body 9 in which a screw 10 is screwed is projected from the rear surface side. Note that the cylinder 9 and the cylinder lock 3 of the lock body 1 are provided inside the cylinder 9 in the cylinder lock 3.
Are inserted into the cylinder lock 3 so that the cylinder lock 3 can project from the front side of the front plate 8.

Numeral 11 denotes a nut formed on the inner peripheral surface of a screw 12 which can be screwed to the screw 10 of the cylinder 9 of the front plate 8, the outer diameter of which is larger than the diameter of the hole 7 of the back plate 6. It has a large diameter.

Reference numerals 13 and 13 denote contact fittings having a substantially L-shaped cross section for contacting the edges of the glass door 5, and can be fitted into the respective recesses 14 and 15 of the front plate 8 and the back plate 6. A small hole 18 is formed, which can be engaged with the projections 16, 17 projecting into the recesses 14, 15, respectively.

Reference numerals 19, 19 denote contact sheets made of neoprene rubber, which have holes 20, 20, respectively, into which the cylindrical body 9 of the front plate 8 can be inserted.

The glass door 5 has a hole 21 in which the cylinder 9 of the front plate 8 can be inserted.

When a lock device having such a configuration is used, as shown in FIG.
The cylinder 9 of the front plate 8 is inserted into 21, the front plate 8 is positioned on the front side of the glass door 5, and the back plate 6 is fitted to the cylinder 9 of the front plate 8.

Between the front plate 8 and the glass door 5,
Adhesion sheets 19 are interposed between the glass door 5 and the back plate 6 in advance. This contact sheet 19,1
9 is connected to the front plate 8 through holes 20 and 20.
This is performed by externally fitting to the cylindrical body 9.

At this time, the fittings 13, 13 are fitted into the respective recesses 14, 15 of the front plate 8 and the back plate 6, so that the fittings 13, 13 It will come into contact with the corner.

When the contact fittings 13 contact the corners of the glass door 5 in this manner, the front plate 8 and the back plate 6 do not rotate with respect to the glass door 5 carelessly. is there.

Next, the screw 12 on the inner peripheral surface of the nut 11 is screwed into the screw 10 on the outer peripheral surface of the cylinder 9 of the front plate 8. This prevents the back plate 6 from being detached from the front plate 8.

Thereafter, the cylinder lock 3 of the lock body 1 is inserted into the cylinder 9 of the front plate 8, and the lock body 1 and the back plate 6 are screwed.

At this time, the keyhole 4 of the cylinder lock 3 of the lock body 1 is exposed to the front of the glass door 5.

As described above, the front plate 8 is installed on the front side of the glass door 5, and the back plate 6 and the lock body 1 are installed on the rear side of the glass door 5. It will be attached.

Next, when using the lock device mounted as described above, a key (not shown) is inserted into the key hole 4 of the cylinder lock 3 which is exposed on the front side of the glass door 5, and By rotating in a predetermined direction, the pin 2 descends and is inserted into the hole 22 to be locked, and by rotating the key in the opposite direction, the pin 2 rises and separates from the hole 22 to be unlocked. The Rukoto.

As described above, since the locking and unlocking are performed by the vertical movement of the pin 2 in the linear direction, the pin 2 is securely inserted into the hole.
Enter within 22.

In the above embodiment, the front plate 8
Between the glass door 5 and the glass door 5 and the back plate 6
Since the contact sheets 19, 19 were interposed between them, a favorable effect of preventing breakage of the glass door 5, etc. was obtained, but the use of such contact sheets 19, 19 is a condition in the present invention. No. It should be noted that as the material of the contact sheet 19, a material other than the neoprene rubber of the above embodiment can be used.

Further, the material of the front plate 8 and the lock body 1 is not limited to metal, and does not matter. The material of the back plate 6 is not limited to synthetic resin.

Further, in the above embodiment, the contact fittings 13, 1
3 was fitted into the respective recesses 14 and 15 of the front plate 8 and the back plate 6,
3, a favorable effect was obtained in that the front plate 8 and the back plate 6 could be inadvertently rotated with respect to the glass door 5 by contacting the corners of the glass door 5, but such a contact fitting 13 was used. Is not a condition in the present invention.

Further, the installation location of the lock device of the present invention is not limited to a show window or the like, and the type of the attached body is not limited to the glass door 5 as in the above embodiment. It is possible to install in.

[0040]

[Effects of the Invention] As described above, the present invention does not lock and unlock by rotating the rotating plate as in the conventional locking device, but can freely move in and out of the linear direction provided in the lock body. Since the locking and unlocking is performed by the pin, even if the glass door is slightly misaligned due to the load or other factors due to long-term use, the pin is securely inserted into the hole formed in the installation part. As a result, there is an effect that locking and unlocking are not hindered.

Also, there is an advantage that the number of parts can be reduced as compared with the conventional lock device.

Further, when the lock device is mounted, the front side of the cylinder lock having the keyhole is exposed to the front side of the front plate, and the lock body and the back plate from which the pins protrude are covered with a cover such as a glass door. Since it is hidden behind the mounting body, there is an effect that the appearance can be maintained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a lock device as one embodiment.

FIG. 2 is a perspective view of a lock body.

FIG. 3 is a longitudinal sectional view of a back plate.

FIG. 4 is a sectional view showing a state where the lock device is attached to a glass door.

FIG. 5 is a perspective view of the lock main body in a state where a pin is immersed.

FIG. 6 is an exploded perspective view of a conventional lock device.

FIG. 7 is a cross-sectional view of the locking device in an attached state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lock body 2 ... Pin 3 ... Cylinder lock 6 ... Back plate 8 ... Front plate 9 ... Cylindrical body

Claims (2)

(57) [Scope of request for utility model registration] 1. A lock device which can be mounted on an object to be mounted such as a glass door (5), wherein a cylinder lock (3) is protruded from a front side,
A lock body (1) having a pin (2) that can be moved in and out in a linear direction;
The lock body (1) has a hole (7) into which the cylinder lock (3) can be inserted, and is attached to the lock body (1) while being interposed between the lock body (1) and the attached body. Back plate (6)
The back plate (6) is mounted on the surface opposite to the surface of the body to which the back plate (6) is mounted. It can be inserted into the hole (7) of (6) and the screw (1
A front plate (8) having a tubular body (9) threaded with the (0) protruding from the rear side, and a screw (10) threaded on the outer peripheral surface of the tubular body (9) of the front plate (8). ) Which has a screw (12) which can be screwed to the inner peripheral surface and whose outer diameter is a hole of the back plate (6).
A lock device comprising a nut (11) formed to have a diameter larger than the diameter of (7). 2. The apparatus according to claim 1, further comprising: buffer sheets interposed between the front plate and the attached body, and between the attached body and the back plate, respectively. The lock device as described in the above.