KR940003276Y1 - Drawer open/close detecting equipment for cash register - Google Patents

Abstract

No content.

Description

Open / close detection device of cash register cash drawer

1 is a perspective view of the main portion of the present invention separated.

2 is a plan view of the opening and closing device of the cash register cash drawer.

3 is an operating state of the drawer opening and closing detection device of the present invention.

4 is a switching circuit diagram of the drawer opening and closing device of the present invention.

5 is a flow chart of the drawer opening and closing device of the present invention.

* Explanation of symbols for main parts of the drawings

2: cash drawer 5: bracket

7: spring 10: switch

The present invention relates to a device for detecting the opening or closing of the cash drawer of the cash register, and is a device to detect the opening and closing by a simple device.

Commonly used cash registers have a drawer for holding cash, a calculator with a calculation function, and a printer for printing receipts. The salesperson calculates sales results, issues receipts, and withdraws or keeps cash. Done.

The cash register which performs this function causes the salesperson to interfere with the sales activity due to the chaos of the calculation. Therefore, when the cash drawer is opened, the input of other keys except the clear key is treated as an error and is configured to emit an error sound. Therefore, the calculation function and receipt can be printed only when the cash drawer is closed.

Cash registers operating in this way must be provided with a device for detecting whether the cash drawer is opened or closed.

As a cash drawer opening / closing detection device of such a cash register, a cash drawer may be conventionally installed at a rear end of a cash drawer to drive a photo sensor or a rear end of the cash drawer to operate an operation of a micro switch. The opening and closing of the was detected.

However, such a conventional device has to install a separate structure when using a photo sensor, and because of the use of expensive photo sensor causes a rise in cost, when operating the micro switch, the operation between the operation of the cash drawer in the closed position In order to be able to position them, precise processing is required and work to adjust them is required, resulting in a decrease in productivity.

The present invention has been made in order to solve the above problems, and aims to detect whether the cash drawer is opened or closed in a simple configuration by modifying a part of the existing cash register.

The present invention for achieving the above object has a conical end of the spring to be easily opened when the cash drawer is opened, the tip is in contact with the non-conductor and the end of the spring in the state of closing the cash drawer serves as a switch It is characterized by.

Hereinafter will be described in detail the configuration and effect of the present invention. Referring to the configuration of the present invention with reference to the accompanying drawings, the locking king lever (3) and the solenoid for releasing the locking lever placed on the rear end of the cash drawer (2) sliding from the cash register body (1) ( 4) and a bracket (5) for fixing it are installed, and the bracket (5) and the cash drawer (2) is supported by a spring (7), but the non-conductor is inserted into the contact portion of the spring and the bracket. The spring 7 has a conical end, and the first wire 7a of the spring coil is in contact with the non-conductor 8, and the second wire 7b is in contact with the bracket 5 when the spring is compressed. The spring 7 and the bracket 5 are configured to be connected to the switch 10.

The working effect of the present invention configured as described above is that when the cash drawer 2 is closed, the second line 7b of the spring 7 assisting the opening of the cash drawer 2 as shown in FIG. The switch 10 is connected to the contacts a and b of the switch 10 in FIG. 4 by contacting the bracket 5 at a point outside the non-conductor 8 that prevents the spring 7 and the bracket 5 from contacting each other. Since the signal is turned on and connected to the ground, a low signal is applied to the port PortA so that the CPU detects this and operates a key input normally.

When opening the cash drawer in this state, the solenoid (4) is turned on as the opening key is operated so that the flanger pulls the locking lever (3). Rotate At this time, as the locking lever 3 holding the cash drawer is released, the cash drawer 2 is opened by the elasticity of the spring 7 which is kept in a compressed state, and at the same time, the second wire 7b of the spring 7 is opened. As the contacts a and b of the switch 10 are turned off as they are separated from the bracket 5, the power supply voltage Vcc is applied to the port A via the pull-up resistor R ₁ so that the central processing unit ( CPU) treats all operations as errors.

As described above, according to the present invention, it is possible to detect whether the cash drawer of the cash register is opened or closed with a simple configuration, thereby lowering the manufacturing cost and improving assembly performance.

Claims (1)

In the device for detecting the opening or closing of the cash drawer of the cash register, the king lever (3) installed on the rear end of the cash drawer (2) sliding from the cash register body (1) and the solenoid (4) for releasing the locking lever And a bracket (5) for fixing it is installed and supported by a spring (7) between the bracket (5) and the cash drawer (2), the spring (7) is formed in a conical end of the non-conductor (8) In contact with, the spring (7) and the bracket (5) is connected to the switch 10, characterized in that the cash register cash drawer opening and closing device.