JPH0114634B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a locking device for a cash register.

(Prior art) Conventionally, locking devices for cash registers were
There is a technique disclosed in Publication No. 60-29870.

This locking device will be explained with reference to FIGS. 3 and 4.

Reference numeral 118 is a lock portion, which is connected to the shaft 12 on the board 101.
It is rotatably attached to the shaft via 0.

The upper end is a bent piece 12 that passes through a through hole 102 formed in the substrate 101 and is bent toward the back side of the substrate 101.
The lower end is connected to the rod 117 of the solenoid 116.

Reference numeral 100 denotes a lock portion, which is rotatably attached to the substrate 101 via a shaft 126. The tip of the hook portion 100 is formed into a hook shape, and is configured to be able to lock with a locking tool 109 fixed to a drawer (not shown).

Further, the rear part of the hook part 100 is formed into an arm 111, and the bending piece 122 provided at the upper part of the lock part 118 and the upper part of the arm 111 are engaged to prevent the hook part 100 from rotating. is locked.

Reference numeral 104 denotes an operating section, which is rotatably attached to the substrate 101 via a shaft 105. A bent piece 108 is formed at the upper part, which is bent perpendicularly to the front side with respect to the drawing. The lower part has a hook-shaped locking part 106
is formed. Note that the shaft 105 is fixed to the substrate 101 through an elongated hole 107, and the actuating part 10
4 is movable back and forth by the length of the elongated hole 107.

112 is a limit switch, and contact 114
When pressed in the direction of arrow y with the actuation arm 110,
It is turned ON, and the key of the cash register (not shown) can be keyed in.

To explain the operation, the state of the hook portion 100 before locking is as follows:
The upper part of the arm 111 is not locked, and the hook part 10
The tip of 0 is inclined and located at the position shown by the dashed line. If you push in the drawer (not shown) in this state,
The tip of the locking tool 109 fixed to the drawer comes into contact with the abutment edge 113 of the hook part 100. Then, the hook portion 100 rotates clockwise around the shaft 126 (in the direction opposite to the arrow Z), and the side edge of the arm 111 pushes the bent piece 122 of the lock portion 118 in the direction of the arrow V. And the hook part 100 is the locking tool 10
After rotating the required amount to lock 9, bend the piece 1
22 and the upper part of the arm 111 are engaged and locked by the elastic force of the coil spring 124. At this time, the locking tool 109 is urged in the direction of arrow X by a spring (not shown), and the locking rod 102 protruding from the front side of the hook portion 100 locks into the locking portion 106 of the actuating portion 104. , the entire actuating section 104 is indicated by an arrow
Pull in the direction of. Then, the actuating part 104 becomes the elongated hole 107.
At the same time, the bending piece 108 moves the actuating arm 110 of the limit switch 112 forward by the length of
Push in the direction of to turn contact 114 ON.

When the limit switch 112 is turned on, the cash register can be keyed in.

To release the lock and pull out the drawer, a switch (not shown) is turned on to operate the solenoid 116.

When the solenoid 116 is actuated, the rod 117 moves in the direction of arrow W, and the lock portion 118 moves in the direction of arrow V.
Rotate in the direction of. At this time, the bent piece 122 of the lock part 118 is disengaged from the upper part of the arm 111 of the hook part 100, so the hook part 100 rotates again to the position shown by the dashed line, and the locking tool 109 releases the lock. When released, the locking rod 102 and the actuating part 10
The locking of the locking portion 106 of No. 4 is also released, and the actuating portion 10
4 retreats under the force of the actuating arm 110,
The limit switch 112 is turned off, making it impossible to key in the cash register.

(Problems to be Solved by the Invention) However, the above conventional method has the following problems.

As mentioned above, the actuating section 104 can be moved back and forth to turn the limit switch 112 ON and OFF. When the drawer is in the locked state, the drawer (that is, the locking tool 109) is biased in the X direction, which also pulls the operating portion 104 in the same direction, turning the limit switch 112 ON. However, the drawer is formed so that there is some play in the X direction shown in the figure even when the drawer is in the locked state. For this reason, if vibrations are applied to the drawer due to some external force, the limit switch will move accordingly.
There is a problem where it turns on and off.

In particular, in recent cash management systems that link cash registers and computers, the ON/OFF of a limit switch is used as drawer opening/closing information.
There is a method of recording over time, but the limit switch is set regardless of whether the drawer is opened or closed.
If it is turned on and off, the normal operation of the cash register will be hindered, and false information will be able to be mixed into the computer system, leading to problems such as interference with cash management and the risk of misuse. .

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a locking device for a cash register having an operating portion that does not move even when the hook portion is swung once the hook portion is in the locked state.

(Means for Solving the Problems) In order to solve the above problems, the present invention has the following configuration.

That is, the drawer latching tool is provided so that the drawer can be latched when the drawer is pushed in, and the hook portion is rotatable in sliding contact with the board, and the latching tool is latched to the hook portion. In a locking device for a cash register, the locking device is provided with a locking part that locks at a certain position, and has a locking release means for releasing the locking of the hook part by the locking part, wherein the hook part is provided with respect to the board so as to be slightly movable in the withdrawal direction; An operating part is provided that moves in conjunction with the movement of the hook part when the drawer latch is latched to the hook part, and turns on a switch mechanism electrically connected to the key of the cash register, A stopper mechanism is provided to fix this actuating part at a position where the switch mechanism is turned on, and when the lock by the lock part of the hook part is released by the lock releasing means, the stopper of the actuating part is released and the switch mechanism is turned on. It is characterized in that it is provided with a stopper release means that turns it into an OFF state.

(effect) The operation will be explained with reference to the drawings.

1 and 2 are front and rear views of the locking device in the locked state.

The contact point 28 of the limit switch 26, which is a switch mechanism, is in the ON state because the operating arm 30 is pressed toward the limit switch 26 by the front edge of the bent piece 40 of the operating portion 32. At this time, as shown in FIG. 5, the lower end of the bent piece 42 bent on the back surface of the actuating part 32 falls into a notch 62 which is a stopper mechanism carved in the through hole 44, and the bent piece 42 movement to the rear (to the right in the drawing) is prevented. Therefore, the rearward movement of the operating portion 32 as a whole is prevented, so that in the locked state, the limit switch 26 can always remain in the ON state even if an external force is applied.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

First, the configuration will be explained.

In FIG. 1, 10 is a substrate, which is formed by bending a flat plate.

Reference numeral 12 denotes a lock portion, and a shaft 14 connects the substrate 10.
It is rotatably pivoted in sliding contact with the The upper end of the lock portion 12 passes through a through hole 16 provided in the substrate 10 and is bent toward the back side of the substrate 10. On the other hand, the lower end of the lock portion 12 is formed into a bent portion 18, and the bent portion 18 is connected to the rod 22 of the solenoid 20.
It is located within the notch 24 at the tip.

Reference numeral 26 denotes a limit switch, which is a switch mechanism, and is turned on when a contact point 28 is pressed by an operating arm 30 having a resilient force, thereby enabling key-in of a cash register (not shown).

38 is a hook part (see Fig. 2), and a shaft 46
It is rotatably mounted in sliding contact with the substrate 10. The shaft hole 48 through which the shaft 46 of the hook portion 38 is inserted is formed as an elongated hole, and the hook portion 38 is movable back and forth within the length of the elongated hole.
The tip of the hook part 38 (the left end in the drawing of FIG. 2) is formed into a hook that can be engaged with a locking tool 50 fixed to a drawer (not shown) of the cash register, and the other end is formed into an arm part 52. has been done. The upper end of the arm portion 52 is adapted to engage with a bent piece 58 at the upper part of the lock portion 12 when locked, and is suspended between the bent piece 58 and a projection 56 formed in the hook portion 38. The elastic force of the passed coil spring 60 urges the lock portion 12 to rotate in the direction of arrow C, thereby preventing it from being disengaged from the arm portion 52.

Further, the coil spring 60 biases the hook portion 38 to rotate counterclockwise about the shaft 46 when the lock is released.

Reference numeral 32 denotes an operating section, which is rotatably attached to the substrate 10 via a shaft 34. The shaft hole 36 through which the shaft 34 of the actuating portion 34 is inserted is formed into an elongated hole, thereby allowing the actuating portion 32 to move back and forth by the length of the shaft hole 34. The lower part of the actuating part 32 is formed into a hook-shaped locking part 33 in which a protrusion 40 provided on a hook part 38 can freely move.

A bent piece 40 that is perpendicular to the plane of the drawing and bent toward the front is formed at the upper end of the actuating part 32, and the end surface of the bent piece 40 on the actuating arm 30 side abuts the actuating arm 30, The limit switch 26 is operated by the operating portion 32 moving back and forth as described above. As shown in FIG. 2, a bent piece 42 is formed on the end surface of the actuating portion 32 so as to pass through a through hole 44 formed in the substrate 10 toward the back surface.

As described above, the actuating portion 32 moves within the range of the elongated shaft hole 36, and at this time, the lower surface of the bent piece 42 slides into contact with the bottom surface of the through hole 44 and moves. and through hole 4
4, the operating portion 32 moves and the end surface of the bent piece 40 presses the operating arm 30 of the limit switch 26 to turn the limit switch 26 ON.
Notch 6 into which the bent piece 42 falls at the position
2 is formed one step lower.

Next, reference numeral 54 designates an extension piece that is a stopper release means that extends outward from the hook portion 38, and as will be described later, the lock is released and the coil spring 6 is released.
When the hook portion 38 is biased to 0 and rotates counterclockwise to return to the state indicated by the dashed dot line in FIG. disengage from the

63 is a protrusion drilled in the board 10, and when the hook 38 is unlocked, the coil spring 60
The hook part 38 is provided in order to restrict the amount of rotation when the hook part 38 is rotated in the counterclockwise direction under the urging force of Rotation stops.

The locking device for a cash register according to the present invention is constructed as described above.

Next, the operation will be explained.

Before locking, the hook portion 38 is in the position shown by the dashed line in FIG. 2, and the actuating portion 32 is pushed by the actuating arm 30 of the limit switch 26 and moved to the most retracted position. Actuation arm 3
0 is biased to the left in FIG. 1 by a spring disposed within the limit switch 26. In this state, the limit switch 26 is of course in the OFF state. In this state, the bent piece 42 of the actuating portion 32 is located at the rear of the through hole 44 and has not fallen into the notch 62.

At this time, when the drawer of the cash register (not shown) is pushed in, the tip of the locking tool 50 fixed to the drawer comes into contact with the abutment edge 39 of the hook portion 38a shown by the dashed line. Due to this force, the hook portion 38a
rotates clockwise in FIG. 2 about the shaft 46 against the elastic force of the coil spring 60.

When the arm 52a rotates a predetermined amount, the lock portion 12
The upper bent piece 58 and the side edge of the arm 52a come into contact with each other, and the lock portion 12a is once rotated in the direction of gradually releasing the lock (in the direction opposite to arrow C). When the upper end of the arm 52a slides onto the lower surface of the bending piece 58 due to the rotation, the lock portion 12 rotates around the shaft 14 in the direction of arrow C due to the elastic force of the coil spring 60, as shown by the solid line. like arm 52
The upper end and the bending piece 58 on the upper part of the lock part 12 are engaged to form a locked state, and the locking tool 50 fixed to the tip of the hook part 38 cannot be removed, and the drawer (not shown) is locked. At this time, the drawer is always opened in the open direction (direction of arrow A) by a spring (not shown).
The locked hook part 3
8 is pulled in the direction of arrow A by the locking tool 50.
Then, the hook portion 38 is moved by the length of the elongated hole 48 as shown by the arrow A.
As the protrusion 40 moves in the direction shown in FIG. Since the actuating part 32 is also movable by the length of the shaft hole 36, the actuating part 32 moves forward, and the bending piece 40 pushes the actuating arm 30 of the limit switch 26 forward to turn on the contact 28. When the contact 28 is turned on, a key (not shown) can be keyed in. The bent piece 40 is the operating arm 3
When pressing 0, the bent piece 42 located in the through hole 44 also moves forward while its lower surface slides on the lower edge of the through hole 44. The bending piece 42 has the actuating arm 30 at the contact point 2.
8 is turned on, its lower end falls into the notch 62 provided in the through hole 44. Once Nottsuchi 62
The bent piece 42 that has fallen inward is blocked by the front wall of the through hole 44 and the rear wall of the notch 62, and cannot move back and forth. Therefore, the actuating portion 32 is fixed, and the actuating arm 30 can keep the contact 28 in the ON state. Even if the drawer vibrates for some reason, the operating part 32 remains fixed.

Next, to release the lock, the solenoid 20 is activated using a switch (not shown). Then, the rod 22 is pulled in the direction of arrow B, so that the lock part 12 moves in the direction of arrow C to release the engagement between the bending piece 58 and the upper end of the arm 52 of the hook part 38 about the shaft 14.
The coil spring 60 rotates in the opposite direction against the elastic force of the coil spring 60.

At that time, the hook portion 38 is attached to the coil spring 60.
Since it is always urged to rotate counterclockwise due to the elastic force of
3 until they come into contact (the position shown by the one-dot chain line).

While this hook portion 38 rotates, the extension piece 54
comes into contact with the lower part of the bending piece 42 of the actuating part 32, and pushes the bending piece 42 up from within the notch 62. Bending piece 4
2 comes out of the notch 62, the hook part 38
The engagement between the protrusion 40 and the locking part 33 of the actuating part 32 is also released, and the actuating part 32 becomes free. At this time, the bending piece 40 receives the elastic force of the actuating arm 30, the actuating part 32 retreats, and the pressure on the contact point 28 of the actuating arm 30 is also released, the contact point 28 turns OFF, and the cash register (not shown) is turned off. It becomes impossible.

Although preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and of course can be further modified without departing from the spirit of the invention. It is.

(Effects of the Invention) When the locking device for a cash register according to the present invention is used, once the switch mechanism is turned on, the stopper mechanism acts to prevent the operating part from swinging.
Even if some external force is applied to the drawer or the drawer vibrates, the limit switch will not turn on or off.
Untrue information is not input into the record of opening/closing information of the cash register, and the cash register can be operated accurately, and fraud and abuse can be prevented.

[Brief explanation of drawings]

FIG. 1 is a front view of a locking device for a cash register according to the present invention, FIG. 2 is a rear view thereof, FIG. 3 is a front view of a conventional locking device for a cash register, and FIG. The figure is its rear view. DESCRIPTION OF SYMBOLS 10... Board, 12... Lock part, 20... Solenoid, 22... Rod, 26... Limit switch, 2
8... Contact, 30... Actuation arm, 32... Actuation part, 3
8, 38a... Hook portion, 40, 42... Bent piece, 4
4... Through hole, 50... Locking tool, 52, 52a... Arm, 54... Extension piece, 58... Bending piece.

Claims (1)

[Claims] 1. A drawer latch is provided so that the drawer can be latched when the drawer is pushed in, and the hook part is rotatable in sliding contact with the board, and the hook part is set at the position where the latch is latched to the hook part. In a locking device for a cash register, the locking device is provided with a locking portion that locks the locking device, and a locking device that releases the locking of the hook portion by the locking portion, the hook portion is provided relative to the board so as to be slightly movable in the drawing direction, and An operating part is provided which moves in conjunction with the movement of the hook part while the locking part is latched to the hook part, and turns on a switch mechanism electrically connected to the key of the cash register. A stopper mechanism is provided to fix the actuating part at a position where the switch mechanism is turned ON, and when the lock by the lock part of the hook part is released by the lock release means, the stopper of the actuating part is released and the switch mechanism is turned OFF. A locking device for a cash register, characterized in that it is provided with a stopper release means to release the lock.