JPH0627669B2 - Electronic scale device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses a plurality of electronic scales for weighing goods,
The present invention relates to an electronic weighing device capable of classifying, aggregating and managing data obtained during weighing.

By providing a plurality of electronic scales and a data totaling device connected to each of these electronic scales, and exchanging data between these electronic scales and the data totaling device, the electronic scales can obtain the data at the time of weighing. An electronic weighing device has been developed that can perform sales management and the like by classifying and tabulating data. Further, this type of electronic scale device has an advantage that face-to-face mobile sale can be performed, and the demand thereof is increasing and expanding in recent years. Note that face-to-face mobile sales mean that the salesperson also moves with the customer each time the customer moves through the sales floor, and along with this, the electronic balance data (weight, price data, etc.) corresponding to the customer's purchased goods. It is a sales method that sequentially transfers the items to the scale of the moving destination, and the advantage that the customer's purchase amount can be settled collectively in the electronic scale of the final sale position, and the customer's service is elaborate and the willingness to purchase is improved. Since it has the advantages that can be achieved, it has become a sales method that has been attracting attention in recent years.

Here, FIG. 1 is a block diagram showing a configuration of a conventional electronic scale device. In the figure, 1, 1, ... Are electronic scales, 2 is a variety of data supplied from the electronic scales 1, 1 ,. A data totaling device that totals the totalized results or preset unit price data or the like and supplies them to any of the electronic scales 1, 1 ,. In this case, the electronic scales 1, 1, ... Are respectively provided with printers 1a, 1a, ... Issuing receipts and the like, and the data aggregating device 2 is provided with a printer 2a for issuing sales reports such as daily totals. Has been.

By the way, in the above-mentioned conventional electronic scale device, since the electronic scale 1 and the data totaling device 2 are respectively configured in separate casings, the data totalizing device which is not directly used for the sales operation is installed in the sales floor. It becomes necessary to secure space,
There was a disadvantage that it was a disadvantage in terms of effective use of the space in the sales floor. In addition, since the electronic scale 1 and the data totaling device 2 are separate casings, it is necessary to separately provide a power supply unit and a keyboard unit, which makes it difficult to reduce the cost of the entire device. .

By the way, one of the multiple electronic scales is equipped with a data aggregation device.
In the case of trying to avoid the above-mentioned drawbacks by simply integrally connecting to the pedestal, the following inconvenience newly occurs, which is not preferable. That is, since the integrated electronic scale is composed of the data totaling unit, the scale unit, and one operating unit for operating these units, the operating unit is used for operating the data totaling unit. In this case, it cannot be used to operate the balance section, and conversely, when it is used to operate the balance section, it cannot be used to operate the data aggregation section. There was a risk of hindering the smooth execution of management and sales operations.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to effectively use a sales floor space without hindering work efficiency in sales management work and sales work, and to reduce the cost of the entire device. An object is to provide an electronic weighing device that can be down.

In order to achieve the above-mentioned object, the present invention transmits and receives data to and from a plurality of electronic scales that weigh products, and collects data by classifying data received from the electronic scales. In the electronic weighing device including a unit, the data totaling unit is configured integrally with one of the plurality of electronic weighing devices, and the unit price or item of each product handled in the electronic weighing device is The electronic scale includes a storage unit in which data is set in advance, and each electronic balance receives data such as a unit price and an item stored in the storage unit from the data totaling unit, and based on the unit price and the weight of the product, the product. , The data totaling unit receives the prices of the products calculated by the electronic scales and totalizes each product, and the electronic scales other than the electronic scales integrated with the data totaling unit are Set the new bid in the data tabulation unit, or is characterized by having a preset data setting means for changing the unit price that has been set.

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

FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention. In this figure, 3-1 to 3-N are electronic scales each having the same configuration, and these can exchange data (data such as weight, price, product type, etc.) with each other. FIG. 3 is a block diagram showing the configuration of the electronic scales 3-1 to 3-N. In the figure, 7 is a CPU (central processing unit) that controls each part of the circuit, and 8 is a ROM in which programs used by the CPU are stored. , 9 is a calculation RAM for temporarily storing various calculation results, and 10 is a data RAM for storing the totalization result, unit price data of the objects to be weighed, etc., which are backed up by a battery. 11 is an external device and C
An interface for exchanging data with the PU7,
A load cell 12 outputs a weight signal corresponding to the weight of the object to be weighed. The output signal of the load cell 12 is amplified and A / D converted by the load cell interface 13 and then supplied to the CPU 7. 14 is a keyboard for inputting unit price data, item name data, etc. of the object to be weighed, 15 is a display unit for displaying the totalized result, unit price, price, etc. under the control of the CPU 7, 16 issuance of a label attached to the product and a sales report The printer 16 will be described later in detail. Reference numeral 17 is a communication interface for controlling data communication with other electronic scales, and is configured to perform parallel-serial conversion of data of the CPU 7 to perform communication. An aggregate data RAM interface 18 is used when data is directly exchanged with the data aggregation unit 4 (FIG. 2) (when parallel data is exchanged as it is).

Further, in FIG. 2, the electronic scale 3-1 constitutes the master unit 5 together with the data totaling unit 4, and other electronic scales 3-2 to 3-
N is a slave to the master 5. Fig. 4 shows the base unit 5
Shows the configuration of. In this figure, the part surrounded by the broken line is the data totaling part, and the other parts are the same as in FIG. In this case, the data totaling unit 4 is mounted on an individual board and is connected to the electronic scale 3-1 by a connector.

Next, in the figure, 20 is an RO for storing a CPU for a base unit, and 21 is a RO for storing a program used by the CPU for the base unit
M and 22 are calculation RAMs for temporarily storing the calculation results of the master CPU 20, and 23 is a communication interface configured similarly to the communication interface 17. 24
Is a RAM for aggregate data, communication interface 2
The electronic balance 3-1 which stores the aggregated data of the electronic scales 3-2 to 3-N supplied via 3 and the aggregated data of the electronic scale 3-1 supplied via the interface 18 for the aggregated data RAM, and the electronic scale 3-1. Stores unit price data and the like used in each of 3 to 3-N. This is because in the case of this embodiment, all the electronic scales 3-1 to 3-N are R for total data.
This is because the price of the object to be weighed and the total are calculated with reference to the unit price data and the total data in the AM 24. That is, when the individual electronic scales 3-1 to 3-N of the apparatus of the embodiment are used as a single electronic scale without being connected to each other, sales data are stored using the built-in data RAMs 10. It is configured to perform classification and aggregation of. When they are connected to each other, the unit price data or the like is supplied to the individual electronic scales by using the totalizing data RAM 24 of the totaling unit 4, or the category data of the merchandise data sold by individual electronic scales is classified and aggregated. It is configured to do.
The total data RAM 24 is backed up by a battery to be non-volatile, and the master device CPU 20
And can be accessed from both the total data RAM interface 18.

Next, FIG. 5 is a perspective view showing the appearance of the electronic scales 3-2 to 3-N and the master unit 5, and the appearances of the electronic scales 3-2 to 3-N and the master unit 5 are configured in exactly the same manner. ing. In this figure, parts corresponding to those in FIG. 3 are designated by the same reference numerals.

In this figure, 31a is a weighing pan, and this weighing pan 3a
The load cell 12 described above is connected to 1a. 1
5 is a display unit, and 14 is a keyboard.
Is composed of a preset key 34, a numeric keypad 35 and a function key 36. Preset key 3 here
Reference numeral 4 is a key for calling preset data such as unit price preset for each product, numeric keypad 35 is a key for inputting various numerical data, and function key 3
Reference numeral 6 is a key used for making corrections.

When the electronic scale device is used as the master unit 5, the data totaling unit 4 is housed in the lower part of the main body 29 shown in FIG. That is, in the case of the parent device, as shown in FIG. 6 (a), a flat plate-shaped bottom plate 29a is used as a bottom plate for covering the bottom surface of the main body 29, and the space formed by the upper part of the bottom plate 29a and the lower part of the main body 29 is A data totaling unit 4 is stored. In this case, the lower end surface of the bottom plate 29a and the mounting table 2
If the distance from the upper surface of 7 is too close, the main body 2
As the legs for supporting 9, the legs 28a, 28a, which are slightly longer,
May be fixed to the main body 29 with a screw or the like before use.

On the other hand, when the electronic balance device is used as a slave unit, the configuration shown in FIG. 9A may be used as it is, but it is not necessary to store the data totaling unit 4, so that, for example, FIG. As shown in, a flat bottom plate 29b is used as the bottom plate, and short leg parts 28 are used as the leg parts.
The b and 28b may be fixed to the main body 29 with screws or the like for use.

Then, the electronic scales 3-1 to 3-N each have a total data RAM.
Interface 18 (see FIG. 3), and further each has a connector to which the data totaling unit 4 can be connected. Therefore, the data totaling unit 4 uses the electronic scale 3
It can be connected to any of the electronic balances -1 to 3-N and can be stored inside (bottom part) by appropriately replacing the bottom plate and the legs. That is, the master unit can be configured using any of the electronic scales 3-1 to 3-N.

Next, reference numeral 40 shown in FIG. 5 is a paper cassette for supplying label paper and receipt paper to the printer 16 (FIGS. 3 and 4), which is detachable from the scale body. Note that in the following, for convenience of description, a receipt cassette 40a containing a receipt sheet (or a total sheet) will be described.
, 40b label cassette with built-in label paper,
These will be collectively referred to as the cassette 40. Here, each of the above-mentioned sheets will be briefly described.

FIG. 7A shows an example of the receipt paper 61, which is obtained by winding a thermosensitive paper having a predetermined width in a roll shape.
Further, FIG. 9B is a view showing the vicinity of the end of the label paper 62, in which the heat-sensitive labels 64, 64 ... Are attached to the mount 63 and wound in a roll shape. Where each label 64
Slits for detection 65 ... Of about 2 mm are formed between them, and a terminal portion 66 with nothing attached is provided behind the final label 64. In this way, the detection slits 65, ... Are provided because it is necessary to confirm the position of the label 64 when printing on the label 64. Then, this position detection is performed, for example, by passing the label paper 62 between the light emitting element and the light receiving element of the transmissive photoelectric sensor, and based on the resulting change in the output of the light receiving element.

The reason why the printing paper is loaded in the cassette in this way is as follows.

In some face-to-face sales using an electronic scale, money may be delivered at the time of measurement sale.In this case, the product name, unit price and amount of each sold product are printed on the receipt paper, and the total amount is also printed. And then issue it. However, large stores such as the recent supermarkets do not deliver money at the time of metered sale, but pay for all purchased items at a so-called checkout counter.
In such cases, apart from the checkout counter, a label is printed that prints the total price of the sold product, and the label is affixed to the packaging of the product and the price is simply quoted. Therefore, as an electronic scale with a printing function,
Two types are required: one that prints and issues a receipt and one that prints and issues a label. On the other hand, according to the present invention, by providing the parent electronic scale with the function of the data aggregator, which has conventionally been configured as a separate device, the power supply unit, the operation unit, the printer unit, etc. are shared, thereby reducing the cost. Etc. are intended to be achieved. Therefore, the daily total report of the classified and aggregated data is printed by the printer of the electronic scale, and it becomes much more necessary to replace the paper than in the past. Therefore, in this embodiment, each sheet is stored in advance in a cassette, and the cassette is appropriately selected and attached / detached to / from the cassette mounting portion, so that the printing sheet can be replaced easily and reliably.

Now, FIG. 8 is a perspective view showing the appearance of the label cassette 40b, and FIG. 9 is a view showing the internal structure of the cassette 40b. The label cassette 40b is one in which a label paper 62 is stored inside a shallow box body 41, and the label paper 62 can be stored when the lid 42 is opened. Here, the label paper 62 is fitted and fixed to the rotary shaft 43, passes through the U-shaped guide plate 44, the idle rollers 45 and 46, and then the platen roller 47 and the dispenser 48, where the label 64 and the mount 63 are separated. After being peeled off, the label 64 is discharged to the outside, and the mount 63 is wound around the winding reel 49. A prism accommodating portion, which will be described later, is formed at the lower end of the guide plate 44, and the prism 50 is accommodated therein. Further, an opening 51 indicating that it is a label cassette is formed on the rear surface of the cassette 40b, and a protective plate 41a is provided on the lower portion of the front surface.

Further, on the outside of the lower surface of the cassette 40b, as shown in FIG. 10, the gear 4 fitted to the shaft of the platen roller 47 is mounted.
7a and a gear 49a fitted to the shaft of the take-up reel 49 come out, and when the cassette 40b is mounted on the balance main body, these gears 47a and 49a are driven by the drive gears 52a and 53a on the balance main body side. Engagement, the platen roller 47 and the take-up reel 49 are rotationally driven. In this case, the drive gear 52
a is driven by the stepping motor 52 to drive the platen roller 47 at a constant speed, and the drive gear 53a is driven by the DC motor 53 for winding the mount, and the take-up reel 49.
To rotate.

Next, FIG. 11 is a diagram showing the structure of the receipt cassette 40a. This cassette 40a is different from the label cassette 40b in that it does not have the opening 51, the idle roller 45, the dispenser 48, and the take-up rail 49. The absence of the opening 51 indicates that the cassette 40a is a receipt cassette, and the dispenser 48
The reason why the take-up reel 49 is not provided is that, in the case of a receipt, it is discharged to the outside immediately after printing, and therefore it is not necessary to peel off the mount 63 and the label 64 or wind the mount 63.

As a result, the receipt paper 61 fitted and fixed to the rotary shaft 43 is sent to the outside via the guide plate 44, the idle roller 46, and the platen roller 47. In this case, the platen roller 47 is rotationally driven similarly to the case of the label cassette 40b, and conveys the receipt paper 61.

FIG. 12 is a plan sectional view showing a state in which the label cassette 40b is mounted on the balance main body. In this figure, 54 is a thermal head, which is a platen roller 57.
The thermal printing is performed on the label 64 while pressing the label paper 62. Then, the printed label 64 is peeled off by the dispenser 48 and discharged to the outside. next,
S1 and S2 are reflection type photoelectric sensors for detecting whether the mounted cassette is the receipt cassette 40a or the label cassette 40b. As shown in the figure, when the label cassette 40b is mounted, the photoelectric sensor S1 receives the reflected light and turns on, but the light beam output from the photoelectric sensor S2 is projected through the opening 51 to the inside and reflected. Does not occur, the photoelectric sensor S2 is turned off. On the other hand, in the case of the receipt cassette 40b, since the opening 51 is not provided, the photoelectric sensor S2 is turned on similarly to S1.

Next, FIG. 13 is a sectional view taken along the line IX-IX in FIG. 12 and shows the structure of the prism 50. The prism 50 bends the light emitted from the light emitting element 56 of the photoelectric sensor S3 attached to the scale main body side into a U shape, and the light passing through the label paper 62 or the receipt paper 61 is converted into the photoelectric sensor S3.
The light receiving element 57 is controlled so as to reach the light receiving element 57. Thus, the light receiving element 57 receives light according to the thickness and the transmittance of the sheet passing through the guide plate 44.

Next, the operation of this embodiment having the above configuration will be described.

First, the data totaling unit 4 uses the communication interfaces 23, 1
The electronic scales 3-1 → ... → 3-N through 7 are sequentially scanned by polling to check whether or not these electronic scales issue communication requests (see FIG. 14).

Now, at time t ₁ shown in FIG. 14, when the preset data request signal PLU requesting preset data (unit price data, product name data, etc.) is output from the electronic scale 3-4, the data totaling unit 4 receives the communication interface. This signal PLU is received via 23 and the preset data PD corresponding to this request is supplied to the electronic scale 3-4. As a result, the electronic scale 3-4 calculates the price of the object to be weighed and creates sales data, and the data summarization unit 4 also causes the next electronic scale 3-
The polling of 5, 3-6 is carried out. The state shown in this figure corresponds to, for example, a case where the salesperson A uses the electronic scale 3-4 to carry out the weighing sale. And electronic scale 3-4
After the sales data is created, the electronic balance 3-4 is polled again (time t _{2 in} FIG. 15), the electronic balance 3-4 transfers the sales data SD to the data totaling unit 4. Then, when the tallying unit 4 receives the sales data SD via the communication interface 23, the sales data SD is received.
Is stored in the total data RAM 24. When storing this data, the parent machine CPU 20 adds identification data to identify that the data is sold by the salesperson A or the data sold by the electronic scale 3-4, or The process of appropriately distributing to the specific storage area is performed. It should be noted that such identification processing is performed in order to classify and aggregate the data, and when the salesperson makes a sale, the salesperson code (numerical code) is displayed on the electronic scale.
Or a preset salesperson key or the like is input. Then, when the above-mentioned data storage processing is completed, the data aggregating unit 4 sends the acknowledge signal ACK to the electronic scale 3-4.
Supply to. As a result, in the electronic scale 3-4, the sales data S
The transmission process of D is completed, and the data totaling unit 4 polls the next electronic scales 3-5, 3-6 ... Note that, in FIG. 15, at time t ₃ , the electronic scale 3
Sales data SD is also transmitted from -6.

Next, the above-mentioned salesperson A makes an electronic scale 3 for the same customer.
It is assumed that the product is sold using -6 and the purchase of this customer is completed at this point. In this case, the salesperson A requests the data totaling unit 4 for the total sales data for this customer after inputting his / her identification data from the electronic scale 3-6. For example, at time t ₄ in FIG. 16, the electronic scale 3-6
If the above-mentioned data request signal PSRQ is output from the above, the data totaling unit 4 receives the above-mentioned signal PSRQ and supplies the total sales data PSD corresponding to this request to the electronic scale 3-6. As a result, the electronic scale 3-6 issues a receipt for the customer based on the supplied total sales data PSD. By the above-described processing, even a customer who purchases at a plurality of places can make a payment with only one receipt. In this way, a series of face-to-face sales is completed. On the other hand, the electronic scale 3-6 shows the total sales data PSD.
When the reception is completed, the acknowledge signal ACK is supplied to the data totaling unit 4, and as a result, the data totaling unit 4 polls the next electronic balance 3-7, 3-8 ,.

When it is desired to know the total sales of a specific electronic scale, the total sales data of the scale may be requested to the data totaling unit 4 in the same manner as described above.

Next, the rewriting process of the preset data will be described.

In this embodiment, the preset data can be changed not only from the master unit 5 but also from any of the electronic scales 3-2 to 3-N which are slave units. For example, the first
At time t ₇ in FIG. ₇ , the keyboard 1 of the electronic scale 3-2
4 inputs preset data to be changed (or added or deleted), the preset data PLU ′ is output from the electronic scale 3-2. When the data totaling unit 4 receives the preset data PLU ′, the data totaling unit 4 rewrites the preset data in the total data RAM 24. Next, when this rewriting is completed, the data totaling unit 4 causes the electronic balance 3-3 → 3-4 → ... 3-N → 3-
The preset data in the data RAM 10 included in these electronic scales are rewritten in the order of 1 → 3-2.

In this way, by rewriting the preset data in all the electronic scales 3-1 to 3-N, even if the master unit 5 breaks down, it is possible to carry out the weighing sale by the internal preset data. Because. In the normal operation, each of the electronic scales 3-1 to 3-N always refers to the preset data in the data totaling unit 4 as described above.

Next, when a sales report, a sales analysis table, or the like is created at the time of closing the store, commands corresponding to these processes are input from the keyboard 14 of the parent device 5. As a result, the data corresponding to the command is read out in the bit parallel from the total data RAM 24 via the total data RAM interface 18, and this data is printed by the printer 16 under the control of the CPU 7.
Thereby, a desired sales report or sales analysis table can be printed. In this way, in the above-described processing, since each data is processed in bit parallel, the processing speed is fast and it does not take time to print a report or the like.

As described above, according to the above configuration, since the data totalizing unit, which is conventionally configured separately, is incorporated into the electronic scale, the keyboard (operation unit) 14, the display unit 15, and the printer (printing unit) 16 are shared. Therefore, the device can be reduced in size and weight, space can be saved, and cost can be reduced.

In this case, if the keyboard 14 is used for the operation of the weighing section, it cannot be used for the operation of the data totaling section 4 if only the keyboard 14 is commonly used by combining them in a combined manner. When it is used for the operation of No. 4, there is a disadvantage that it cannot be used for the operation of the scale section.

However, according to the above configuration, the electronic scale 3-2 which is the slave unit
Since the setting of the preset data of the data totaling unit 4 can be changed also from 3-N, even when the parent device 5 is used as an electronic scale, the parent device can be used by using the keyboard 14 of the child devices 3-2 to 3-N. It is possible to change the setting of the preset data of the data totaling unit 4 of the machine 5. Therefore, for example, from 16:00
If the service time is set between 18:00 and the unit price is temporarily changed (lowered), at 16:00,
Even if the master unit 5 happens to be used as an electronic scale, it is not necessary to interrupt the use of the master unit 5 as an electronic scale and change the preset data, and change the unit price from the slave unit that is not in use at the time. You can do it (the same applies when it is 18:00).

In addition, in the above-described embodiment, the electronic scales 3-1 to 3-3-
By properly replacing the cassette 40 provided in each N, it can be used as a label printer or an electronic scale with a receipt issuing function (and a report issuing function), and each electronic scale can be used. There is an advantage that only one printer can be registered.

Further, in the conventional electronic weighing device (FIG. 1), the printer 2a unique to the data totaling device 2 is provided.
In this embodiment, the printer used for data aggregation can be used with any of the printers of the electronic scales 3-1 to 3-N, which is extremely advantageous in terms of cost.

In addition, in the above-mentioned embodiment, the electronic scale 3-
Although the case where the preset data can be changed from any of 2 to 3-N has been described, it is not always necessary that all the slave units have such a preset data changing function. Electronic scale 3 that is a child machine
It suffices that at least any one of 2-3-N can change the preset data.

As described above, the present invention comprises a plurality of electronic scales for weighing products, and a data totaling unit for exchanging data with each of the electronic scales and for classifying and totalizing the data received from each of the electronic scales. In the electronic weighing device, the data totaling unit is configured integrally with one of the plurality of electronic weighing devices, and data such as unit price and item for each product handled in the electronic weighing device is preset. Each of the electronic scales receives the data such as the unit price and the item stored in the storage unit from the data totaling unit, and calculates the price of the product from the unit price and the weight of the product. However, the data totaling unit receives the price of the product calculated in each of the electronic scales and totalizes for each product, and the electronic scales other than the electronic scale integrated with the data totaling unit are stored in the data totaling unit. Equipped with preset data setting means that sets or changes the set unit price, so effective use of sales floor space or back room space without hindering work efficiency in sales management work and sales work In addition, the cost of the entire device can be reduced. Here, the back room is a retail store such as a supermarket,
Unlike the sales floor where various products are displayed, it is a workplace where customers are prohibited from entering and exiting, and where packing of weighing products is performed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a configuration of a conventional electronic scale device, FIG. 2 is a block diagram showing a configuration of an embodiment of the present invention, and FIGS. 3 and 4 are electronic scales shown in FIG. 2, respectively. 3-2-3-N
And a block diagram showing the configuration of the master unit 5, FIG. 5 is a perspective view showing the appearance of the electronic scales 3-2 to 3-N and the master unit 5, FIG.
FIG. 7A is a front view of the master unit 5, FIG. 7B is a front view of the electronic scales 3-2 to 3-N that are slave units, and FIGS. 7A and 7B are the same embodiment. 8 is a perspective view showing the outer appearance of the label cassette 40b, FIG. 9 (a) is a rear view of the same cassette 40b, and FIG. 9 (b) is (A) of FIG. A plane sectional view taken along the line A, FIG. 10 is a sectional view showing the configuration of the drive unit of the platen roller 47 and the take-up reel 49, FIG. 11 (a) is a rear view of the receipt cassette 40a, and FIG. (A) AA line plane sectional view, twelfth
The figure is a plane sectional view showing a state in which the label cassette 40b is attached to the balance main body, FIG. 13 is an enlarged sectional view taken along line IX-IX of FIG. 12, and FIGS. Four
3 is a timing chart showing a state of data communication between the electronic scales 3-1 to 3-N. 4 ... Data aggregation section, 29a ... Bottom plate (storage section).

Claims (2)

[Claims] 1. An electronic scale device comprising a plurality of electronic scales for weighing products and a data totaling unit for exchanging data with each of the electronic scales and for collecting and classifying data received from the electronic scales. The data totaling unit is configured integrally with one of the plurality of electronic scales,
Further, the electronic scale device comprises a storage unit in which data such as unit price and item for each product handled is preset, and each electronic scale stores data such as unit price and item stored in the storage unit. Received from the data totaling unit, calculate the price of the product from the unit price and the weight of the product, the data totaling unit receives the price of the product calculated in each of the electronic scales and totalizes for each product, An electronic scale other than the electronic scale integrated with the data totaling unit is characterized by comprising preset data setting means for setting a new unit price in the data totaling unit or changing the set unit price. Electronic scale device. 2. The data totaling section is mounted on a separate board, and each electronic scale electrically connects a board storage space capable of accommodating the board, a circuit inside the electronic scale, and the data totaling section. The electronic scale device according to claim 1, further comprising a connector unit to be connected, wherein the data totaling unit can be incorporated into any one of the electronic scales.