JPH11110631A - Lock unit for automatic vending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock unit hardly being destroyed by making the attachment surface of a keyhole more recessed than a door surface and arranging the keyhole in such a direction so that a key may be inserted from bottom to top in the recessed space. SOLUTION: A recessed part 2 whose cross section has an almost trapezoidal shape is provided on a door 1 that is attached to the front of a vending machine, and a lock unit 3 is provided at an upper part of the part 2. A lower part 5 of a lock base 4 is attached, facing an upper slope plane of the part 2, and hollow 8 is formed at an upper part 7. Further, a cylinder 9 is attached to the part 5 of the base 4, a keyhole 10 made on the cylinder 9 extends obliquely from bottom to top, and a key 17 is obliquely inserted from bottom to top in space of the part 2. Also, a handle 12 that can be stored in the hollow 8 of the part 7 of the base 4 is connected to a cam 14 through a spring 13 for pop-up, the cam 14 is connected to a slider of the door and the slider engages an engaging part of a vending machine body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a lock device provided on a front door of a vending machine.

[0002]

2. Description of the Related Art A vending machine is installed outdoors and indoors in an unmanned state, and stores change and sales cash prepared in advance and a large number of commodities therein. Although a lock device is provided in case of theft, there are many crimes that destroy the lock device and take cash, especially at night. A conventional locking device is provided on a door on the front of a vending machine, and its general structure is that, when a handle of the locking device is rotated, a door slider is disengaged from a vending machine main body and the door is opened. Things. When the door is closed, the handle is housed so as to be fitted into the lock base. When the door is opened and closed, the cylinder lock attached to the handle is released, so that the handle pops out and becomes rotatable. FIG. 2 shows an example. In the figures, a is a front view, b and c are longitudinal sectional views of the lock device in a state where a door is closed, and a handle when the door is opened and closed, respectively.
1 is a door provided on the front of the vending machine, 22 is a lock base fixed to the door 21, 23 is a cylinder, 24 is a keyhole provided on the cylinder, 25 is a handle attached to the cylinder, 26 is a cylinder The provided latch, 27 is a cam, and 28 is a pop-up spring inserted between the cylinder and the cam. In the locked state, the handle 25 is in the recess 29 of the lock base 22.
The latch 26 is fitted in a hole 210 provided in the cam 27, the pop-up spring 28 is in a compressed state, and a slider of a door (not shown) connected to the cam 27 is attached to the vending machine main body. , And the door 21 is locked. When the key 211 is inserted into the key hole 24 of the cylinder 23 from the front and turned, the latch 26 comes off the hole 210 of the cam 27, and the handle 25 is pushed outward by the action of the spring 28 and pops out of the recess 29. This enables the slider attached to the cam 27 to be disengaged from the engaging portion of the vending machine main body, and the door is unlocked. In the case of locking, by closing the door, the slider again engages with the engaging portion of the vending machine main body.
1 is inserted into the keyhole 24 and turned, whereby the latch 26 is fitted into the hole 210 of the cam 27 again, and the handle 2
5 is fixed in the depression 29.

[0003] Typical breaking methods for this type of locking device are a method of setting up a screw in a keyhole and pulling out the entire cylinder with a nail, a method of destroying the cylinder with an electric drill from the keyhole, and excavating the entire circumference of the cylinder with a hole saw. And so on. Prevention measures against these techniques include hardening the cylinder cap, covering the keyhole with a cap cover, spinning the screw by making the keyhole idle, and drilling the drill with the hard ball built into the cylinder Each time these measures are taken, new tricks using advanced processing tools appear one after another, and the current situation is that no final preventive measures have been found.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a locking device which makes it extremely difficult to perform a destruction operation as compared with the prior art.

[0005]

In order to solve the above-mentioned problems, in the present invention, the mounting surface of the keyhole is recessed from the door surface, and the key is inserted upward from below in the recessed space. Place the keyhole in such a direction.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a portion for attaching a cylinder lock of a front door of a vending machine is slightly depressed,
By mounting the cylinder lock on the recessed surface so that the keyhole is oblique, and when inserting the key into the keyhole, the cylinder lock must be mounted so that the key must be inserted into the keyhole from below. In order to break the lock, it is necessary to insert various tools used for breaking into the recessed narrow space and to apply a force from below to above, which creates an extremely inefficient environment for the breaking operation. You.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a door provided on the front face of the vending machine, and 2 denotes a recess provided on the door 1 and has a substantially trapezoidal cross section. Reference numeral 3 denotes a locking device provided on the upper part of the recess 2, 4 denotes a lock base, and a lower part 5 of the locking device faces the inclined surface 6 on the upper side of the recess 2, and a recess 8 is formed in an upper part 7. I have. Reference numeral 9 denotes a cylinder, which is attached to the lower part 5 of the base 4 and whose axis extends obliquely from below to above, so that a keyhole 10 provided in the cylinder also extends obliquely from below to above. 11
Is a bolt provided on the cylinder. Reference numeral 12 denotes a handle which can be stored in the recess 8 of the upper portion 7 of the base 4. The handle 12 is connected to a cam 14 via a pop-up spring 13, and the cam 14 is connected to a door slider (not shown), and the slider can be engaged with an engaging portion of the vending machine main body. . The latch 11 can fit into a hole 15 provided in the handle 12 and a hole 16 provided in the cam 14.

When the door is closed, as shown in FIG. 1A, the handle 12 is housed in the recess 8 of the lock base 4, and the latch 11 is a hole 16 provided in the cam 14.
And the pop-up spring 13 is in a compressed state.
A slider (not shown) connected to the door 4 is engaged with an engaging portion of the vending machine main body, and the door 1 is locked. When the key 17 is inserted into the keyhole 10 of the cylinder 9 and turned, the latch 11 comes off the hole 16 of the cam 14 and the hole 15 of the handle 12, and the handle 12 is pushed outward by the action of the spring 13 and jumps out of the recess 8.
2 allows a rotating operation, whereby the slider attached to the cam 14 is disengaged from the engaging portion of the vending machine main body and unlocked. To lock, door 1
After the slider is engaged with the engaging portion of the vending machine main body by closing the handle, the handle 12 is placed in the recess 8, and the key 17 is inserted into the key hole 10 and turned. And the hole 15 of the handle 12, so that the handle 12 is fixed in the recess 8.

The recess 2 of the door 1 is formed as small as possible so that a key can be attached and detached to open and close the lock, and various tools for destruction are provided in the space of the recess 2. Advantageously, it is difficult to insert.

In the above example, an example of a cylinder lock has been described. However, the present invention is not limited to a cylinder lock but can be applied to various types of locks.

[0012]

According to the present invention, the space for attaching and detaching the key for opening and closing the lock is formed extremely small, and the keyhole is downward instead of facing the front as in the prior art. And it is difficult to work even if you try to break the lock device, the work efficiency is poor, it takes time to break, killing the willingness to commit the crime and giving up execution As a result, the theft can be prevented.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view, b is a longitudinal sectional view of a state in which a door is closed, and c is a longitudinal sectional view of a state in which a handle is opened when the door is opened and closed.

2A is a front view of the conventional lock device, FIG. 2B is a vertical cross-sectional view of a state where a door is closed, and FIG. 2C is a vertical cross-sectional view of a state where a handle is opened when the door is opened and closed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Door dent 3 Lock device 4 Lock base 5 Lock base lower part 6 Depression slope 7 Lock base upper part 8 Lock base dent 9 Cylinder 10 Keyhole 11 Bolt 12 Handle 13 Pop-up spring 14 Cam 15 Handle Hole 16 cam hole 17 key

Claims (1)

[Claims] 1. A vending machine characterized in that a mounting surface of a keyhole is recessed from a door surface, and a keyhole is arranged in a direction in which the key is inserted upward from below in the recessed space. Locking device.