JPH0579891A - Electronic price scale - Google Patents

Abstract

PURPOSE:To make the complicated work of manual writing of a receipt or a label unnecessary by providing a digit adding means for adding a predetermined digit to the last digit of the printing data, and making the number of digits of the display value of a display part agreed with the number of digits of the printing value of a printer. CONSTITUTION:A shutter 10 provided in a display device 8 is opened in accordance with the rise of prices to extend the pre-printed zeros by a necessary number of digits. Accordingly, the display of a unit price display part 9b and a price display part 9c are agreed with the actual state of economy. If the number of digits of the unit price or the price displayed on a label 26 by a label printer is kept as it is even after the display digit of the unit price display part 9b, etc., is changed, the number of digits of the value displayed by the display part 9 becomes different from that of the value printed on the label 26. Therefore, if the number of digits of the unit price display part 9b or the like is increased, the number of digits of each of a unit price storing area 23 and a price storing area 24 of a text data 21 is increased as well, so that the number of digits of the unit price and the price printed on the label 26 is agreed with that of the unit price and the price displayed by the display part 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic fee scale that displays the weight of a measured item together with its unit price and transmits print data having the same content as the displayed content to a printer.

[0002]

2. Description of the Related Art In recent years, electronic charge balances, which electrically measure the weight of an item by converting the deformation of a load cell caused by a vertical load into an electric signal, have been rapidly spread.

In such an electronic charge balance, conventionally, the weight of the measured item is displayed on the display unit together with the unit price and the price, and the print data having the same content as the displayed display data is transmitted to the printer. There are things. In such a structure, the unit price of the item to be weighed is input by an input unit such as a keyboard, and the product of this unit price and the weight of the item weighed by the weighing unit is calculated by the calculation unit to calculate the price of the item. To be done. And the weight of the item thus obtained,
The unit price and the price are displayed on the weight display unit, the unit price display unit and the price display unit, respectively. Further, print data having the same content as the display data displayed on these display units is transmitted to the printer through the data transmission unit.

On the other hand, such an electronic charge balance is often manufactured not only in the domestic market of Japan but also in the overseas market, so that it is often manufactured as a product for foreign countries. The currency unit and the weight unit described in are manufactured according to the market of the partner country. However,
Overseas, there are countries in which the monetary value drops significantly within a short period of time, and prices quickly rise by tens or hundreds of times. In such a country, the number of digits on the display unit of the electronic toll scale becomes insufficient as the price rises sharply, and it becomes impossible to display the unit price or the price on the display unit.

In order to deal with such a situation, it is sufficient to provide a large number of digits in the display unit in advance, but this not only increases the cost of parts, but also increases the area occupied by the display unit, resulting in a large apparatus size. This is undesirable because it causes

Therefore, in such a country, when prices rise sharply and the number of digits in the display unit becomes insufficient, a paper is stuck on the display unit and a 0 is handwritten on the paper, or 0 is written in advance. It is generally practiced to add a predetermined number of 0s to the last digit of the display unit by using a method such as sticking a sticker on the display unit. Therefore, in the electronic charge balance in which 0 is added to the last digit of the display unit, the unit price is input with the number of digits reduced by the number of added 0. Then, the weight of the product is weighed by the same processing as before adding 0, and the product of this weighed weight and the input unit price is obtained by calculation, and these values are displayed on the weight display unit, unit price display unit and Each is displayed on the price display section. Therefore, the value displayed on the unit price display part and the price display part has fewer digits than the actual unit price and price by the number of added 0, and the value displayed on these unit price display part and the unit price display part etc. The actual unit price and price are expressed with 0 added to the last digit of.

[0007]

However, if 0 is added to the last digit of the display unit by handwriting or the like, the number of digits will be different between the value displayed on the display unit and the value printed by the printer. It has drawbacks. That is, in the electronic fee scale, the price of the product is calculated with the unit price value reduced by the number of added zeros, and therefore the unit price and the price printed by the printer are equal to the reduced number of digits. It will be a small value. Therefore, in order to compensate for such a shift in the number of digits, it is necessary to handwrite 0 after the last digit of the value such as the unit price or the price printed on the receipt or label, and the work is complicated to display. The advantage of the electronic toll scale that allows the printer to print the same content as the content is significantly impaired.

[0008]

According to the present invention, a weighing unit for weighing the weight of an item, an input unit for inputting a unit price of the item, a unit price value input by the input unit, a weighing value of the weighing unit, etc. And a data transmission unit for transmitting print data having the same contents as the display data displayed on the display unit to the printer, and a digit number adding means for adding a predetermined digit to the last digit of the print data. Was established.

[0009]

Therefore, the weight of the item weighed by the balance unit and the unit price of the item input by the input unit are displayed on the display unit, and the print data having the same content as the display data is transmitted to the printer by the data transmission unit. It is then used for issuing receipts and labels on the printer. At this time, if 0 is added to the last digit of the display unit to increase the number of digits, if the same number of digits is added to the last digit of the print data by the digit number addition means,
The number of digits such as the unit price displayed on the display unit matches the number of digits such as the unit price printed on the receipt or label by the printer.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. First, the overall external configuration is shown in FIG. A case-shaped main body case 1 is provided, and a weighing pan 3 connected to a load cell 2 incorporated in the main body case 1 via a frame (not shown) is provided on the upper part of the main body case 1. Further, on the front surface of the main body case 1, there are provided a keyboard 4 as an input unit composed of a numeric keypad and the like, and a slit-shaped label issuing port 5. The label issuing port 5 is connected to a label printer 6 as a printer built in the main body case 1. further,
A pillar 7 is attached to the back surface of the main body case 1, and an indicator 8 is fixed to the upper end of the pillar 7. The display unit 8 includes a weight display unit 9a as a display unit 9,
A unit price display portion 9b, a price display portion 9c and a message display portion 9d are provided respectively.

Here, the display section 9 excluding the message display section 9d is, for example, a 7-segment type LED.
It is formed of a display, and each has a displayable digit number of 5 digits, and it is possible to add 3 digits to the unit price display portion 9b and the price display portion 9c. That is, three digits of 0 are preprinted on the last digits of the unit price display portion 9b and the price display portion 9c, and the preprinted portion is moved up and down for each digit by the shutter 10. It is configured to open and close.

Next, the electrical connection of each part is shown in FIG.
A CPU 11 that intensively performs various processes is provided.
The PU 11 has a ROM 12 for storing fixed data such as an operation program and PLU data (PLU is Price Look Up
Is connected to a RAM 13 that stores variable data such as The CPU 11 has an amplifier 14 and an A /
The load cell 2 is also connected via the D converter 15, and the balance section 16 is configured here. Also, the C
To the PU 11, the keyboard 4 is connected via a keyboard driver 17, the thermal printer 6 is connected via a printer driver 18, and the display unit 9 is connected via a display driver 19.

Therefore, the CPU 11 and the ROM 1
2 and the RAM 13 constitute a data transmission unit 20 that sends print data having the same content as the display data of the display unit 9 to the label printer 6. The data transmission unit 20 creates print data to be sent to the label printer 6 as text data 21 in the RAM 13. This text data 21 is illustrated in FIG. That is, the text data 21 includes a weight storage area 22 having W1 to W5 digit areas 22a for storing the display data of the weight display section 9a and U1 to U5 digits for storing the display data of the unit price display section 9b. A unit price storage area 23 having an area 23a and a 3-digit blank area 23b, and a price storage area 24 having a P1-P5 digit area 24a and a 3-digit blank area 24b for storing the display data of the price display section 9c. Has been formed. Here, the digit regions 22a, 23a, 24a are configured such that the numerical values at the x-th digit are stored as encoded code data in Wx, Ux, and Px, respectively.

Further, a fixed area in the RAM 13 is provided with an additional digit number setting area 25 which is rewritable by key input of the keyboard 4. The additional digit number setting area 25 is an area for storing the number of digits to be set in the blank areas 23b and 24b in the unit price storage area 23 and the price storage area 24.

The flow of operation in such a configuration is shown in the flowchart of FIG. That is, when the weight of the item is weighed by the weighing unit 16, the weight as the weighed value is displayed on the weight display unit 9a. More specifically, when an item is placed on the weighing pan 3, the load cell 2 deforms and its output changes. At this time, since the output of the load cell 2 is amplified by the amplifier 14, converted into a digital signal by the A / D converter 15 and input to the CPU 11, the amount of change in the output of the load cell 2 is calculated by the CPU 11 as the product. Calculated as weight. Then, an output signal based on this calculated value is sent from the CPU 11 to the display driver 19 to drive the weight display section 9a, and the weight display section 9a displays the weight of the item. The weighing data by the weighing unit 16 at this time is temporarily stored in the RAM 13.

Then, when the weight is displayed or not weighed, it is checked whether or not the unit price is input. The unit price is input by operating the keys of the keyboard 11 to input the unit price value using the ten keys or by designating the PLU number. Then, when the unit price is not input, the process returns, but when the unit price is input, the value of the unit price is recognized by the CPU 11 as code data. Then, an output signal based on the code data is sent to the display driver 19 to drive the unit price display portion 9b, and the unit price of the item is displayed on the unit price display portion 9b.

If the RAM 13 contains weighing data, the product of the weight, which is the weighing value, and the input unit price is calculated by the arithmetic processing of the CPU 11, and the price of the weighed item is calculated. Then, an output signal based on the calculated value is sent from the CPU 11 to the display driver 19 to drive the price display section 9c, and the price of the item is displayed on the price display section 9c.

Here, whether or not to print out the display content is selected by a key operation of the keyboard 4 or the like, and if not printed out, the process ends.

On the other hand, when the printout is selected,
The digit data set in the additional digit number setting area 13 in the RAM 13 is read and set in the blank areas 23b and 24b of the text data 21. This processing will be described later together with the digit data setting processing. Then, after the digit data is read, the data transmission unit 20 reads R
Text data 21 as print data is created in the AM 13, and this text data 21 is the label printer 6
Be transmitted to. That is, the weight storage area 22 has a scale 16
The weighing value is set and the unit price storage area 23 displays the keyboard 4
The input value of the unit price is set by
The calculated value of the product of the weight and the unit price by the PU 11 is set. More specifically, the numerical value at the x-th digit of each value is set in Wx, Ux, and Px in the form of code data. When the text data 21 is created in this manner, the text data 21 is sent to the printer driver 18, converted into image data and stored in a print buffer (not shown) in the printer driver 18, and the label printer 6
Is output to. Therefore, in the label printer 6, the same contents as the contents displayed on the display unit 9 are printed on the label 26, and the label 26 is issued, whereby the process ends.

Then, in a short period of time, prices may increase tens, hundreds, and even thousands of times. In such a case, in the present embodiment, the shutter 10 provided on the display 8 is opened in accordance with the increase in the price, and the preprinted 0 is output by the required number of digits to display the unit price display portion 9b and the price display. The display of the section 9c can be adjusted to the actual economic situation. However, when the display digit of the unit price display portion 9b or the like is changed in this way, if the unit price and the number of digits of the price displayed on the label 26 by the label printer 6 remain unchanged, the number of digits of the value displayed on the display portion 9 and the label The number of digits printed on 26 is inconsistent. Therefore, in the present embodiment, when the number of digits in the unit price display portion 9b or the like is added, the numbers of digits in the unit price storage area 23 and the price storage area 24 of the text data 21 are added and printed on the label 26. The unit price and the number of digits of the price are matched with the number of units of the unit price and the price displayed on the display unit 9. The flow of such operation will be described below.

First, when the display digit of the unit price display portion 9b or the like is changed, the additional digit is set in the additional digit number setting area 25 in the RAM 13. The flow of such setting operation is shown in the flowchart of FIG. That is, when the device is set to the setting mode, the format of the text data 21 illustrated in FIG. 4 is displayed on the message display unit 9d. Then, while looking at the displayed text data 21, one of "0", "1", "2", and "3" is input to the CPU 11 by the ten keys of the keyboard 4. This entered number is
This means that the number of digits is added by "x" digits. Therefore, the number of digits added to the last digit of the unit price display portion 9b or the like is input. When a predetermined numerical value is input in this way, the numerical value is set as digit data in the additional digit number setting area 25. Therefore, at the time of printing out, the digit data set in the additional digit number setting area 13 is read by the CPU 11, and the blank area 23b in the text data 21,
A zero value is set in c by the number of digits of the digit data. Then, since the label printer 6 prints based on the text data 21, only the number of digits of the digit data set in the additional digit number setting area 25 is added to the last digit of the unit price and the price printed on the label 26. 0 is added. This allows
The number of digits of the unit price displayed on the unit price display portion 9b and the label 2
The number of digits such as the unit price printed on 6 matches. Here, a digit number adding means is configured.

Here, FIG. 7 shows an additional digit number setting area 25.
Label data issued by the label printer 6 when the digit data set to "3" is input, $ 99 is input as the unit price, and the weight of the measured item is 1000 g.
6 shows an example. As shown in FIG. 7, with this label 26, the unit price display is $ 99,000 and the price is $ 990.
It is 00000.

In the implementation, other types of printers such as a receipt printer may be used as the printer, and the print data is transmitted to the printer provided separately from the electronic charge balance main body by the data transmission unit. It may be a structure that does.

[0024]

According to the present invention, when the print data having the same contents as the display data such as the weight and the unit price displayed on the display section is transmitted to the printer by the data transmitting section, the digit number adding means displays the last digit of the print data. Since it is configured to add a predetermined number of digits, if the number of digits of the displayed value is increased by continuously adding 0 to the last digit of the display unit, add the same number of digits to the last digit of the print data by the digit number addition means. , It is possible to match the number of digits of the displayed value on the display unit with the number of digits of the printed value by the printer. Therefore, complicated work such as writing an additional digit by hand on the receipt or label issued by the printer is possible. There is an effect that it is unnecessary and can contribute to smooth work.

[Brief description of drawings]

FIG. 1 is a block diagram of electrical connection of each part showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an overall appearance.

FIG. 3 is a front view of a display device.

FIG. 4 is an explanatory diagram of text data transmitted to a printer.

FIG. 5 is a flowchart showing a flow of a weighing display operation.

FIG. 6 is a flowchart showing a flow of a digit number setting operation.

FIG. 7 is a plan view of a label showing an example of print contents.

[Explanation of symbols]

 4 Input section 9 Display section 16 Scale section 20 Data transmission section 21 Print data

Claims (1)

[Claims] 1. A weighing unit for weighing the weight of an item, an input unit for inputting a unit price of the item, and a display unit for displaying a unit price value input by the input unit, a weighing value of the weighing unit, and the like. A data transmission unit for transmitting print data having the same contents as the display data displayed on the display unit to the printer, and a digit number adding means for adding a predetermined digit to the last digit of the print data. And an electronic fee scale.