JP2003239579A - Lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent slackness of a cylinder lock due to vibration and the like by means of a simple structure at a low cost in a lock device having the cylinder lock. <P>SOLUTION: This lock device is provided with the cylinder lock 1. Between a flange part 1c on the front side and a nut 11 screwed to the outer circumference face of the cylinder lock 1, a U-shaped fixing metal fitting 12 is inserted. A groove 11a extending axially is formed on the outer circumferential face of the nut 11. A stopper 13 engaged in the groove 11a for preventing rotation of the nut 11 is arranged on the inner circumferential face of a cylinder lock housing hole 14a in a body 14. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device mounted on an automatic vending machine or the like, and more specifically, it is a solid and reliable cylinder lock that does not loosen the cylinder lock even when subjected to vibration or shock. The present invention relates to a lock device formed so as to maintain the fixed state.

[0002]

2. Description of the Related Art A locking device of this type used in a vending machine or the like is susceptible to a large vibration or shock when the door is opened or closed. Moreover, since the money in the vending machine is likely to be stolen, the cylinder lock may be forcibly turned by an unauthorized person. Therefore, it is desirable that this type of locking device be formed so that the mounted state of the cylinder lock can be reliably and firmly maintained for a long period of time even when subjected to vibrations or rough handling.

Therefore, conventionally, as this type of locking device, a cylinder lock is provided, and a U-shaped fixing metal fitting is inserted between a front flange portion of the cylinder lock and a nut to be screwed onto the outer peripheral surface. There is one in which a cylinder lock is formed by a fixing metal fitting so as not to rotate due to vibration or the like (see, for example, Japanese Patent Laid-Open No. 9-235924).

[0004]

However, as described above, the conventional product merely prevents the cylinder lock from rotating by the U-shaped fixing metal fitting inserted between the nut and the collar portion. In the case of, the nut could not be prevented from loosening due to vibration or shock. Therefore, when using the conventional product,
As a result of loosening the nut, the cylinder lock is displaced in the axial direction,
There was a problem that it came out on the front side of the body.

If the structure for fixing the cylinder lock is complicated in order to solve this kind of problem, the number of parts increases,
Not only is the cost increased, but assembly is time-consuming, and manufacturing efficiency is poor.

The present invention has been made in view of such conventional circumstances.
Proposed. Therefore, the technical problem of the present invention is
It is an object of the present invention to provide a lock device having a cylinder lock, which is formed so as to prevent loosening of the cylinder lock caused by vibration or the like with a simple structure and at low cost.

[0007]

The present invention adopts the following technical means in order to solve the above problems.

That is, according to the present invention, as shown in FIG.
A cylinder lock 1 is provided, and a front collar part 1 of the cylinder lock 1 is provided.
A locking device in which a U-shaped fixing bracket 12 is inserted between c and a nut 11 screwed onto the outer peripheral surface,
A groove 11a is formed on the outer peripheral surface of the nut 11 so as to extend in the axial direction, and a stopper 13 that engages with the groove 11a to prevent the nut 11 from rotating is provided on the inner peripheral surface of the cylinder lock housing hole 14a of the body 14. It is provided in (1).

The lock device of the present invention includes, for example, a handle lock device formed by a handle 4 which can be rotated by an unlocking operation of the cylinder lock 1, and a chain together with the cylinder lock 1 and a cylinder lock 1. There is a chain lock device or the like formed so that the base end of the chain is released by an unlocking operation, and thereby the door can be opened and closed.

In the case of the present invention, it is preferable that the stopper 13 is formed in a pin shape and is press-fitted from the outside into the through hole 15 penetrating the cylinder lock housing hole 14a from the outer surface of the body 14 ( Claim 2).

According to this, the stopper 1 is formed by grinding the inner peripheral surface of the cylinder lock housing hole 14a into a convex step shape.
Compared with the case of forming 3 (see FIG. 7), the stopper 13
This is because it is possible to reduce the hand clearance involved in the processing of.

Further, according to the present invention, it is preferable that the grooves 11a are respectively formed at positions opposite to the outer peripheral surface of the nut 11 (claim 3).

This is because the position of the groove 11a and the stopper 13 can be easily aligned and the assembling work is facilitated.

Further, according to the present invention, the screw hole 12b of the fixing member 12 is provided.
A connecting portion 12c having a right angle with respect to the leg piece 12a,
Further, the body 1 is formed so as to extend in the axial direction of the cylinder lock 1.
4 is a stopper insertion port 15 of a through hole 15 opening to the outer surface.
It is preferable that a is closed by the connecting portion 12c (claim 4).

This is because, according to this, it is possible to prevent water and dust from entering the through hole 15 simply and at low cost by attaching the stopper 13.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1 and the like, the product of the present invention of this embodiment is provided with a cylinder lock 1, and when the rotor 1a of this cylinder lock 1 is rotated by the key 2, the first end of the rear end of the rotor 1a is The lever 3 is rotated so that the handle 4 can be rotated by the action of the cam portion 3a. Specifically, when the first lever 3 rotates, for example, the engagement with the main body portion 5 of the vending machine is released, and the cam portion 3 a that rotates together with the first lever 3 moves the latch 7 around the horizontal shaft 6. The claw portion 7a of is rotated downward. As a result, the claw 4a of the handle 4
The locked state is released, and the handle 4 springs upward due to the action of the spring 8. By turning the handle 4, the second lever 9 is rotated and the locked state with the main body portion 5 is completely released, and as a result, the door can be opened and closed. 1
Reference numeral 0 is a shaft into which the rear end of the cylinder lock 1 is inserted and engaged.

Reference numeral 11 denotes a male screw 1 on the outer peripheral surface of the cylinder lock 1.
It is a nut screwed to b. The nut 11 is formed with a groove 11a extending in the axial direction on the outer peripheral surface thereof. The groove 11a is formed to have a concave cross section in this embodiment,
The nuts 11 are formed at positions opposite to the outer peripheral surface of the nut 11, respectively.

Further, 12 is a flange portion 1c on the front side of the cylinder lock 1.
Is a U-shaped fixing metal fitting to be inserted between the nut and the nut 11. In this fixing metal fitting 12, the leg pieces 12a are engaged with the flat surface portions 1d on both sides of the cylinder lock 1. Further, the connecting portion 12c having the screw hole 12b of the fixing metal fitting 12 is
The cylinder lock 1 is bent at a right angle and extends in the axial direction of the cylinder lock 1.

Reference numeral 13 is a stopper which engages with the groove 11a and prevents the nut 11 from rotating. This stopper 13
Is provided on the inner peripheral surface of the cylinder lock housing hole 14a of the body 14. In the case of this embodiment, this stopper 1
The pin 3 is formed in a pin shape and is press-fitted from the outside into a through hole 15 penetrating the cylinder lock housing hole 14a from the outer surface of the body 14. The stopper insertion port 15a of the through hole 15 is closed by the connecting portion 12c of the fixing member 12 when the fixing member 12 is attached to the body 14 with the set screw 16.

Next, an example of assembling the product of the present invention and its operation will be described.

First of all, the operator firstly operates the pin-shaped stopper 13
Is press-fitted into the through hole 15 so that its tip is slightly exposed in the cylinder lock housing hole 14a. Next, the cylinder lock 1 is inserted into the storage hole 14a, and the groove 11a of the nut 11 screwed into the male screw 1b of the cylinder lock 1 is engaged with the stopper 13. After that, the fixing fitting 12 is inserted from below the body 14, and the leg pieces 12 a are engaged with the flat surface portion 1 d of the outer peripheral surface of the cylinder lock 1. Further, the set screw 16 is inserted into the screw hole 12b to fix the fixing fitting 12 to the body 14.

The cylinder lock 1 includes a leg piece 12 of a fixing fitting 12.
Rotation is prevented at a. Further, since the groove 11a is engaged with the stopper 13, the nut 11 is prevented from rotating.
Therefore, in the case of the product of the present invention, the nut 11 is not loosened and the cylinder lock 1 does not come out of the front side of the body 14.

In the above process, the stopper 13 may be formed by grinding the inner peripheral surface of the cylinder lock accommodating hole 14a into a convex step as shown in FIG. Further, the groove 11a is formed at a position opposite to the outer peripheral surface of the nut 11 in the above example, but the present invention is not limited to this.
For example, only one place is enough. In the case of the present invention, the groove 11a
The cross-sectional shape of is arbitrary.

[0025]

As described above, according to the present invention, a groove is formed on the outer peripheral surface of a nut so as to extend in the axial direction, and a stopper that engages with the groove to prevent the nut from rotating is housed in a cylinder lock of the body. It is provided on the inner peripheral surface of the hole.

Therefore, according to this, in the locking device having the cylinder lock, loosening of the cylinder lock caused by vibration or the like can be prevented with a simple structure and at low cost.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts showing a preferred embodiment of the product of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of the same product.

FIG. 3 is an exploded side view of the above product.

FIG. 4 is a sectional view of the principal part taken along the line IV-IV in FIG.

FIG. 5 is a perspective view of an essential part of the same product.

FIG. 6 is an exploded perspective view of an essential part of the above product.

FIG. 7 is a cross-sectional view of essential parts showing another embodiment of a stopper.

[Explanation of symbols]

1 cylinder lock 1c Tsuba part 2 keys 3 first lever 4 handles 5 Main unit of vending machine 6 horizontal axis 7 Latch 8 springs 9 Second lever 10 shaft 11 nuts 11a groove 12 Fixing bracket 13 stopper 14 body 14a Cylinder lock storage hole 15 through holes 16 setscrews

Claims (4)

[Claims] 1. A lock device comprising a cylinder lock, wherein a U-shaped fixing metal fitting is inserted between a front flange portion of the cylinder lock and a nut screwed to the outer peripheral surface, A groove is formed on the outer peripheral surface of the nut so as to extend in the axial direction, and a stopper that engages with the groove and prevents rotation of the nut is
A lock device provided on an inner peripheral surface of a cylinder lock storage hole of a body. 2. The lock device according to claim 1, wherein the stopper is formed in a pin shape, and is provided by being press-fitted from the outside into a through hole penetrating from the outer surface of the body to the cylinder lock housing hole. Locking device. 3. The lock device according to claim 1 or 2, wherein
A lock device, wherein grooves are respectively formed at positions opposite to the outer peripheral surface of the nut. 4. The locking device according to claim 2 or 3, wherein:
The connecting part with the screw hole of the fixing bracket is formed to extend at right angles to the leg piece and in the axial direction of the cylinder lock, and the stopper insertion port of the through hole opening to the outer surface of the body is closed by the connecting part. A locking device characterized by being provided.