JPH0554233A - Lock mechanism of paper sheet storage box - Google Patents

Abstract

PURPOSE:To provide the lock mechanism of the paper sheet storage box which can securely be unlocked. CONSTITUTION:The lock mechanism is constituted by providing an attracting lock member 3, a repelling lock member 4 provided with a magnet, and a gravitational lock member 5 to the paper sheet storage box 1 quipped with a shutter 2 and also providing a 1st magnet, a 2nd magnet which has the same polarity with the magnet, and a claw 54 to a main body. The attracting lock member 3 and repelling lock member 4 lock the shutter 2 normally in a closed stage and receives an attracting force and a repelling force from the 1st and 2nd magnets when the storage box 1 is inserted into the main body by a specific quantity to unlock the shutter 2. When the storage box is further inserted, the claw 54 moves the shutter 2 to its open position. The gravitaitonal lock member 5 does not detain the shutter 2 normally and moves to lock the shutter 2 when the storage box 1 is set upside down.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock mechanism for a paper storage box such as a cash box.

[0002]

2. Description of the Related Art The conventional locking mechanism of this type of paper sheet storage box has a structure for releasing the lock when the storage box is inserted into the main body. Specifically, a special sword for unlocking the storage box is placed on the main body side, and a hole etc. for the sword to enter the storage box is provided, and when the storage box is inserted into the main body, the sword Is engaged with the lock mechanism inside the storage box to release the lock (the shutter for taking in and out the paper sheets is opened).

[0003]

However, in the above-mentioned conventional structure, in addition to the problem that the sword and the lock mechanism are not reliably engaged due to variations in manufacturing the parts, the internal structure is damaged due to the insertion of foreign matter. There were various problems.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lock mechanism for a paper sheet storage box which has a simple structure and can be surely unlocked and which has an excellent anti-theft property.

[0005]

In order to achieve the above-mentioned object, in the present invention, the shutter of the paper sheet storage box is locked in the closed state with the paper sheet alone, and the paper sheet storage box is set in the main body. A movable suction lock that locks the shutter in a closed state in the paper sheet storage box in a lock mechanism of the paper sheet storage box by unlocking the shutter by the inserting operation and moving the shutter to the open position. And a movable repulsion lock member with a magnet are provided, and when the paper sheet storage box is inserted into the main body by a predetermined amount, the suction lock member is opposed to the suction lock member to suck the shutter. It has the same polarity as the first magnet for releasing the lock and the magnet of the repulsion member, and faces the magnet of the repulsion lock member when the paper sheet storage box is inserted into the main body by a predetermined amount. A second magnet that releases the lock of the shutter by separating the lock member and the suction lock member, and the repulsion lock member releases the lock of the shutter, and then inserts the paper sheet storage box into the main body. And a pawl that engages with the shutter to move the shutter to the closed position when the shutter is placed, and further, the shutter is not locked in the paper sheet storage box in a normal state of the paper sheet storage box,
When the paper sheet storage box is turned upside down, the paper sheet storage box is moved by its own weight to lock the shutter, and the paper sheet storage box is composed of a member that is not attracted to the magnet. A self-weight lock member is provided.

[0006]

When the paper sheet storage box is not inserted into the main body, the shutter is reliably locked because the suction lock member and the repulsion lock member lock the shutter. Moreover, since the repulsion lock member is also used, even if an attempt is made to release the lock by using a magnet or the like, the release is difficult. Further, if the storage box is turned upside down to unlock the storage box, the self-weight lock member mechanically locks the shutter, which makes unlocking more difficult.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 are structural explanatory views of the lock mechanism of the paper sheet storage box of this example, and FIGS. 1 (A), 1 (B) and 1 (C) show the structure on the storage box side (see FIG. (A) is a plan view, (B) is a side view, (C) is a front view), (D), (E),
2F shows the structure of the main body side into which the storage box is inserted (FIG. 2D is a plan view, FIG. 2E is a side view, and FIG.
(F) is a front view). The details of the configuration and operation of these are as follows.

In FIGS. 1A, 1B and 1C, 1
Is a paper sheet storage box having a guide groove 1a, and the storage box 1 is
The lock unit 20 includes a shutter 2, a suction lock member 3, a magnet-equipped repulsion lock member 4, and a dead weight lock member 5.

The shutter 2 has a lid portion 6 and a link 7 connected to the lid portion 6. This shutter 2 is biased by a spring (not shown) in the direction of arrow A in FIG. 1 (B), and is positioned and stored at the position indicated by the dotted line in FIG. 1 (B) when the storage box 1 is not inserted into the main body. The opening of the box 1 is blocked. Note that the shutter 2 can be moved between the dotted line and the solid line in FIG. 1B by being guided by a guide portion (not shown).

As shown in FIG. 3 (FIG. 3A is a plan view, FIG. 3B is a side view, and FIG. 3C is a front view), the suction lock member 3 is provided at the bottom of the storage box 1. One pair is provided at the facing position. This suction lock member 3 is shown in FIG.
As shown in detail in (A) a plan view and FIG. 4 (B) a side view), the end of the link 7 is rotatably supported by the support shaft 8 and positioned in the illustrated position in the storage box 1 alone. The portion 7a is locked.

As shown in FIG. 5 (FIG. 5 (A) is a plan view, FIG. 5 (B) is a side view, and FIG. 5 (C) is a front view), the repulsion lock member 4 is provided at the bottom of the storage box 1. One pair is provided at the facing position. As shown in detail in FIG. 6, the repulsion lock member 4 is rotatably supported by the support shaft 9 and is positioned as shown in the storage box 1 alone so that one end 4a has a link 7a.
One end 7a is locked. A magnet 10 is attached to the other end of the repulsion lock member 4.

As shown in FIG. 7 (FIG. 7 (A) is a plan view, FIG. 7 (B) is a side view, and FIG. 7 (C) is a front view), the self-weight lock member 5 is provided at the bottom of the storage box 1. One pair is provided at opposing positions and is mounted on each repulsion lock member 4. As shown in detail in FIG. 8, the self-weight lock member 5 is supported by the support shaft 11, and in the normal state of the storage box 1 alone (normal state in which the top and bottom are correct), the self-weight lock member 5 is moved in the direction of arrow B from the state of FIG. 8 by its own weight. One end 5a is disengaged from the end 7a of the link 7 by rotating.

On the other hand, in FIGS. 2D, 2E, and 2F, 51 is a main body having a pair of guide guides 51a (opposed to the guide grooves 1a), and the main body 51 is a pair of first guides. Of the magnet 52, a pair of second magnets 53, and a pair of shutter opening / closing claws 54.

The first magnets 52 are provided respectively corresponding to the respective suction lock members 3, and when the storage box 1 is inserted into the main body 51 by a predetermined amount, the suction lock members 3 are provided.
To face. The second magnet 53 is provided corresponding to each repulsion lock member 4, and faces the repulsion lock member 4 when the storage box 1 is inserted into the main body 51 by the predetermined amount. The polarity of the second magnet 53 is the same as that of the magnet 10 described above. The claw 54 engages with the shutter 2 to open the shutter 2 after the operation of inserting the storage box 1 into the main body 51.

Next, the operation of each of the above components when the storage box 1 is inserted into the main body 51 will be described.

When the storage box 1 is inserted into the main body 51 in the direction indicated by the double arrow in FIG. 2D, the suction lock member 3 is moved to the first position as shown in FIG. 6, the magnet 10 of the repulsion lock member 4 faces the second magnet 53, as shown in FIG. At the time of insertion, the storage box 1 has the guide groove 1a.
And is guided by the engagement of the guide guide 51a.

In this state, the suction lock member 3 has the first
Is attracted by the magnet 52 of FIG.
It pivots in the direction and comes off from the end 7a of the link 7. Also,
The repulsion lock member 4 rotates in the direction of arrow D in FIG. 6 by the repulsion action of the magnet 10 and the second magnet 53,
It comes off from the end 7a. Further, the self-weight lock member 5 overlapping with the repulsion lock member 4 has an arrow B in FIG. 8 due to its own weight.
It rotates in the direction and is disengaged from the end 7a. Therefore, the storage box 1 can be further inserted thereafter.

After that, when the storage box 1 is further inserted, the end 7a of the link 7 engages with the claw 54 on the main body 51 side, and the link 7 or shutter 2 is spring (not shown) due to the subsequent insertion of the storage box 1. 1 against the urging force of
It moves in the direction of arrow A ′ in (B). Then, when the storage box 1 is completely inserted, the shutter 2 is opened to the position indicated by the solid line in FIG.

In addition, the storage box 1 is moved to the main body 5 in the reverse operation.
When it is pulled out from 1, the shutter 2 is closed to the state of the dotted line in FIG. 1B by the urging force of the spring. And
The magnets 52 and 53 that the lock members 3 and 4 face each other.
After passing through, the lock members 3 and 4 are locked to the end 7a of the link 7 to prevent the shutter 2 from opening.

As described above, the storage box 1 alone is a suction type,
Since the shutter is locked by two types of repulsion-type lock members, the lock cannot be released with one magnet,
Anti-theft property is improved. Further, since the self-weight lock member locks the shutter in a state where the storage box is turned upside down, the antitheft property is further improved (cannot be released even by using a plurality of magnets).

[0022]

As described above, according to the present invention, the following various effects can be obtained. (1) The structure is simple (the number of parts is about half that of conventional products). (2) Since the repulsion-type lock member is used in addition to the suction-type lock member, the shutter lock cannot be released by one magnet, and the anti-theft property is improved. (3) Since the self-weight lock member configured by a member that is not attracted by the magnet is provided, which locks the shutter by the action of its own weight in a state where the storage box is turned upside down, the anti-theft property is further improved.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of a lock mechanism of a paper sheet storage box according to an embodiment of the present invention, FIG. 1 (A) is a plan view of the storage box side, and FIG.
1B is a side view of the same, and FIG. 1C is a front view of the same.

FIG. 2 is a structural explanatory view of a lock mechanism of the paper sheet storage box of the embodiment of the present invention, FIG. 2 (D) is a plan view of the main body side, and FIG.
FIG. 2E is a side view of the same, and FIG. 2F is a front view of the same.

3A and 3B are explanatory views of the arrangement of the suction lock member according to the embodiment of the present invention, FIG. 3A is a plan view, FIG. 3B is a side view, and FIG.
(C) is a front view.

4A and 4B are views for explaining the configuration and operation of the suction lock member of the embodiment of the present invention, FIG. 4A is a plan view, and FIG. 4B is a side view.

5A and 5B are layout explanatory views of the repulsion lock member of the embodiment of the present invention, FIG. 5A is a plan view, FIG. 5B is a side view, and FIG.
(C) is a front view.

FIG. 6 is a front view showing the structure and operation of the repulsion lock member according to the embodiment of the present invention.

7 (A) and 7 (B) are plan views, FIG. 7 (B) is a side view, and FIG. 7 (B) is a side view.
(C) is a front view.

FIG. 8 is a front view showing the structure and operation of the deadweight lock member according to the embodiment of the present invention.

[Explanation of symbols]

 1 Paper Sheet Storage Box 2 Shutter 3 Suction Lock Member 4 Magnet Repulsion Lock Member 5 Self Weight Lock Member 10 Magnet 20 Lock Part 51 Main Body 52 First Magnet 53 Second Magnet 54 Claw

Claims (1)

[Claims] 1. The paper sheet storage box alone locks the shutter of the paper sheet storage box in a closed state, and unlocks the shutter by inserting the paper sheet storage box into the main body to release the shutter. In a lock mechanism of a paper sheet storage box configured to move the shutter to an open position, a movable suction lock member and a movable repulsion lock member with a magnet that lock the shutter in the paper sheet storage box in a closed state, respectively. And a suction lock member facing the suction lock member when the paper sheet storage box is inserted into the main body by a predetermined amount, and the suction lock member is sucked to release the locking of the shutter. And a magnet of the repulsion lock member, which has the same polarity as the magnet of the repulsion lock member and faces the magnet of the repulsion lock member when the paper sheet storage box is inserted into the main body by a predetermined amount. A second magnet that separates the shutter to release the shutter lock, and the suction lock member and the repulsion lock member release the shutter lock, and then the paper sheet storage box is inserted into the main body. A claw for engaging the shutter and moving the shutter to the open position is provided, and the shutter is not locked in the paper sheet storage box in a normal state of the paper sheet storage box. A paper sheet storage box provided with a self-weight lock member composed of a member that is not attracted by a magnet, which is moved by its own weight when the paper sheet storage box is turned upside down and locks the shutter. Lock mechanism.