JPH0222761Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to an anti-theft device for a vending machine.

[Conventional technology]

Generally, vending machines are often installed outdoors, so when the machines are not popular, such as at night, the locks may be broken or the doors may be pried open and the money or products inside may be stolen.

In order to prevent such theft of vending machines, as already described in Publication of Utility Model Publication No. 57-44435, there is a lock on the inner surface of the operation cover attached to the outer door that can be operated with a key from the outside. In a door device provided with a key member that is driven to engage or disengage from the outer door, a first switch for detecting the key operation is provided on the inner surface of the operation section cover, and a first switch is provided on the inner surface of the outer door. is provided with a second switch that determines whether or not the key member is in a state of engaging with the outer door by detecting movement of the key member, and further, the first switch is in a lock detection state. The anti-theft device is equipped with an alarm that issues an alarm when the second switch is in the unlock detection state, and an alarm that issues an alarm if the door is forcibly opened with the door locked. It has also been designated as
- As described in Publication No. 32277, a long plate that senses distortion is provided at the opening/closing part of the door, and the pressure sensitive part of the switch is placed close to this long plate, so that when the door is forced open, the long plate is distorted. An anti-theft device that sounds an alarm when it detects theft has been developed and is now in practical use.

[The problem that the idea attempts to solve]

In the conventional anti-theft device described in Japanese Utility Model Publication No. 57-44435, the first switch and the second switch are ordinary type switches that operate stably against vibrations and distortion forces, so the sensitivity is not sufficient. As the lock is broken and the alarm is issued just before the door is opened, the alarm system is often turned off when the door is opened, which prevents theft and damage to the vending machine. It was not enough to do so.

In addition, the anti-theft device described in Japanese Patent Publication No. 52-32277 also uses a switch combined with a return button, and the play of this return button is about 2 to 3 mm, so this is also the same as before. If a remote location, especially one close to the fixed part of the long plate, was forced open, the alarm switch would not activate unless the opening/closing part of the door had progressed considerably, so the same problem as the former could not be avoided.

Therefore, the present invention aims to provide a theft prevention device for a vending machine that can sound an alarm as reliably as possible no matter where force is applied with a spanner or wrench on the outer door.

[Means to solve the problem]

According to the present invention, a lock is provided on the outer door which is pivotally attached to the front surface of the main body of the vending machine so as to be openable and closable, and the outer door and the main body are locked by rotation of the lock. In a vending machine configured to issue an alarm when there is an abnormality in the lock and the lock attachment part including the lock attachment member, the means for issuing the alarm is provided from the lock on the inside of the outer door. It includes a pair of switches with actuating pieces arranged opposite each other at relatively distant positions, and as a component of the means for issuing the alarm, one end is fixed to the lock mounting part and the other end is fixed to the lock mounting part. A switch actuation arm is provided between the pair of actuation pieces and configured to issue an alarm when the other end comes into contact with one of the pair of actuation pieces due to swinging of the lock mounting portion. A theft prevention device for a vending machine is obtained.

Since the device of the present invention has the above configuration, even if the lock mounting part swings slightly with respect to the outer door, the other end of the switch actuation arm will come into contact with one of the actuation pieces of the switch. The alarm can be set off without fail.

〔Example〕

The embodiments shown in the drawings will be described below.

1 and 2 are a sectional view and an exploded perspective view of an embodiment of the present invention. An outer door 2 is pivotally attached to the front surface of the vending machine main body 1 so as to be openable and closable. In this outer door 2, a lock 5 has a key insertion hole exposed through a lock mounting plate 3 and a lock mounting frame 4 fixed to the inside of this outer door 2 without protruding from the outer surface of the outer door 2. It is attached by a lock mounting nut 6 as shown in FIG. A lever 7 is integrally attached to the lock 5 with a lever mounting nut 8.

Further, one end of a switch operating arm 9 is attached to the inside of the outer door 2 of the lock mounting frame 4 via a bolt 10. In addition, this switch operating arm 9
One end of the lock 5 may be directly adhered to the inside of the outer door 2 of the lock 5. In short, it may be fixed to either the lock 5 or a lock attachment part consisting of a lock attachment member.

On the other hand, a switch cover 12 is attached to a door back plate 11 that is integrated with the outer door 2 with a switch cover mounting bolt 12.
Switches 14 and 14' are mounted on the switch cover 12 so that the operating pieces 13 and 13' face each other. and,
The other end of the switch actuating arm 9 is placed between the actuating pieces 13, 13' of the switches 14, 14' at a predetermined distance. As is readily apparent in Figure 2, the other end of the switch actuating arm 9 is spaced relatively far from the central axis of the lock, and is also spaced in the direction of the central axis. Therefore, the rocking movement of the lock 5 or the lock mounting plate 3 relative to the outer door 2 is magnified in accordance with the length of the arm, and the position of the other end of the arm is greatly changed.

As the switches 14, 14', the operating pieces 13,
A micro switch whose contacts are closed by a slight movement of 13' is used, and although not shown in the figure, for example, the contacts are connected in parallel, and a battery is connected in series to this to connect an alarm device such as a bell. is connected. Therefore, the alarm can be sounded no matter which actuating piece 13, 13' of the switch 14, 14' is pressed.

Further, when the outer door 2 is closed, a lock slide plate 16 with a lock hole 15 is provided on the inside of the outer door 2 facing the vending machine main body 1, and a stepped bolt 17 is inserted into the outer door 2.
One end of a connecting arm 18 is fixed to the slide plate 16. The other end of this connecting arm 18 is connected to the other end of the lever 7 via a stepped bolt 19.

A lock plate 2 having a hook-shaped tip is attached to the vending machine main body 1 via a lock plate mounting member 20.
1 is attached by a lock plate mounting bolt 22. This lock plate 21 passes through a lock hole 15 formed in the lock slide plate 16 to lock the outer door 2.
It is provided so as to protrude to the side.

The door gap cover 23 bent into a hook shape is attached to the outer door 2.
The vending machine body 1 closes the gap between the vending machine body 1 and the vending machine body 1 when the outer door 2 is closed. 24
25 is an inner door, and 25 is an inner door lock lever.

Next, its effect will be explained.

Now, when the key is inserted into the lock 5 and turned in the unlocking direction, the lock slide plate 16 moves upward (downward) via the lever 7 and the connecting arm 18, so that the lock hole 15 and the lock plate 21 are engaged. is released, so the outer door 2 can be opened freely. Conversely, when the outer door 2 is closed and the key is turned in the locking direction, the lock hole 15 and the lock plate 21 engage, and the outer door 2 is locked to the vending machine main body 1, so it cannot be opened. Door 2 cannot be opened. This is a normal opening/closing operation using a key, and of course does not generate an alarm, which will be described later.

However, if someone tries to forcibly open the outer door without the key, for example, by using a screwdriver or the like to remove the lock mounting frame 4 protruding from the outer door 2, the external force may cause the lock to mount. Since the frame 4 is distorted, the switch actuating arm 9 attached to the frame 4 is enlarged and swings, so that the switch 14, which is installed oppositely,
14', the switch is turned on by pressing either of the actuating pieces 13, 13'. Therefore, by operating this switch, an alarm is issued or an abnormality is displayed in the manager's room or the like via the connection line. Further, since the expansion of the swing can be increased as the arm is lengthened, the switch can be operated with high sensitivity even if the position away from the lock is deformed with a screwdriver or the like.

[Effect of idea]

In the present invention, the current in the alarm device is turned on and off by a pair of switches facing each other, and the switch operating arm, which forms part of the alarm device, is lengthened so that one end is fixed to the lock mounting part and the other end is fixed to the lock mounting part. By positioning the switch between the two switches, even if an attempt is made to open the outer door by breaking the lock while the lock is still locked, the displacement of the lock or lock fixing member can be prevented quickly before the lock is broken or the outer door is opened. It is possible to detect this and notify surrounding people or the manager by issuing an alarm or displaying it on a display, thereby preventing theft as well as the destruction of the vending machine.

[Brief explanation of drawings]

Fig. 1 is a sectional view taken along line A-A in Fig. 3 showing an example of the theft prevention device of the present invention, Fig. 2 is an exploded perspective view showing an example of the theft prevention device of the invention, and Fig. 3 is an automatic FIG. 4 is a perspective view showing the front appearance of the vending machine, and FIG. 4 is a perspective view showing the vending machine with the outer door open. 1...Vending machine body, 2...Outer door, 3...Lock mounting plate, 4...Lock mounting frame, 5...Lock, 9...Switch operating arm, 11...Door back plate, 12... Switch cover, 13, 13'... Actuation piece, 14, 1
4'...Switch.

Claims (1)

[Scope of Claim for Utility Model Registration] A lock is provided on the outer door that is pivotally attached to the front of the main body of the vending machine so that it can be opened and closed, via a lock attachment member,
The outer door and the main body are locked by rotating the lock,
Further, in a vending machine configured to issue an alarm when there is an abnormality in the lock and the lock attachment part including the lock attachment member, the means for issuing the alarm is located relatively far from the lock on the inside of the outer door. It includes a pair of switches with actuating pieces disposed opposite each other at separate locations, and as a component of the means for issuing the alarm, one end is fixed to the lock mounting part and the other end is fixed to the lock mounting part. a switch actuating arm located between the actuating pieces of the pair, and configured to issue an alarm when the other end comes into contact with either of the pair of actuating pieces due to the rocking of the lock mounting portion; Features: Anti-theft device for vending machines.