JPS6126892Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a price scale that calculates and displays the price of the object to be weighed from the weighed value and unit price, and in particular sets the unit price, and sets the unit weight of the unit price. This relates to the fractional method or the buy-count method.

Conventionally, in consideration of expanding the unit price setting range and operability, unit prices are set using the fractional method or the buy-count method.

When setting the unit price, use an input device such as a numeric keypad while checking the unit price display, and when setting the unit weight using the fractional method, set the unit weight to be equivalent to 1/2 pound or 1/4 pound, respectively.
A 1/2 instruction button and a 1/4 instruction button are provided, and if neither the 1/2 instruction button nor the 1/4 instruction button is operated, the unit price set by the numeric keypad is displayed as the unit price per pound. Acts on the calculation, 1/
When a one-touch operation for selectively selecting the 2 instruction button or the 1/4 instruction button is performed, the keyed-in amount is doubled or quadrupled and used to calculate the price. However, this method has the following problems.

In other words, if, for example, the 1/2 indicator button or 1/4 indicator button is operated incorrectly or intentionally during weighing (including during weighing), the unit price per pound that affects price calculation will be reduced to 1/2 pound. Alternatively, the price may change per 1/4 pound, and the price of the object to be weighed will be calculated based on a unit price different from the unit price at the time of the start of weighing, which is undesirable because the price of the object to be weighed will be incorrectly displayed.

Therefore, the present invention was devised to avoid the above-mentioned problems, and provides a price scale that can improve the reliability of displaying prices of objects to be weighed.

An embodiment of the present invention will be described below based on the drawings.

FIG. 1 shows a fare scale in which the unit price is set using the buy-count system, and numeral 1 indicates a microcomputer as a control section for each device, which will be described later, and operates according to a predetermined program. 2 is a scale unit that converts the load value into a digital signal; 3 is a display unit; a weight display unit;
It consists of a unit price display section and a price display section. 4 is a tare instruction button, 5 is a hold display instruction button,
6 is a numeric keypad as a unit price setting section for setting the amount of the unit price, and 7 is a unit weight setting section for setting the unit weight of the amount keyed in with the numeric keypad 6, per 1/2 pound, per 1/4 pound. It has a 1/2 button 7a and a 1/4 button 7b corresponding to the 1/2 buttons 7a and 7b, respectively.
8 is a clear button used when changing the unit weight setting. In addition, the tare instruction button 4 and
The function of the field display instruction button 5 is the same as that of a normal scale, so the explanation thereof will be omitted below.

FIG. 2 shows a block diagram of a circuit that functions equivalently to that of the microcomputer 1, and the operation of the microcomputer 1 will be explained based on this diagram.

Reference numeral 9 denotes a weighed value determining section which detects from the digital value output from the weighing section 2 that the weighed value is at the zero point. Reference numeral 10 denotes an operation confirmation section that stores the operation of the unit weight setting section 7 for a predetermined period of time, and is controlled by the weighed value discrimination section 9, and is pressed only when the weighed value is at zero point. The selection operation of the /4 button 7b can be stored, and the storage can be canceled by operating the clear button 8 only when the weighed value is at the zero point.
11 is an arithmetic processing unit which converts the weight value from the weighing unit 2 into G
[pounds] and the amount keyed in using the numeric keypad 6 is a [dollars], the operation confirmation section 10 indicates 1/2.
If neither the button 7a nor the 1/4 button 7b operation is stored, G.a dollars is calculated as the price of the object to be weighed, and if the 1/2 button 7a operation is stored, The price is calculated by calculating (a x 2) x G, assuming that the amount keyed in using the numeric keypad 6 is 1/2 pound. In addition, if the operation of the 1/4 button 7b is stored, the price is calculated by calculating (a x 4) x G with the unit weight of the set amount being 1/4 pound.

The fare scale thus constructed is operated as follows.

First, when the weighing value is at the zero point with no heavy objects (tare or object to be weighed) loaded on the scale section 2, if the unit weight of the amount you have keyed in or the amount you are about to key in is not in pounds, 1/2 button 7a corresponding to weight
Alternatively, operate the 1/4 button 7b. here 1/2
If the button 7a is operated, the operation confirmation section 10
stores that the 1/2 button 7a was operated.
If the key-in of the amount has already been completed, by loading the object to be weighed into the scale section 2, the arithmetic processing section 11 immediately executes the above-mentioned arithmetic processing, and the price of the object to be weighed is displayed on the display section 3. be done. Note that the key-in of the unit price can also be performed with the object to be measured loaded. Even if, for example, the clear button 8 is operated by mistake or the like in a state where the weighed value of the scale section 2 is not at the zero point, the operation confirmation section 10 will not be able to update the memory in this state by the output of the weighed value discriminating section 9. Therefore, although the unit price setting is cleared by operating the clear button 8, the memory of the operation of the 1/2 button 7a is not cleared, and the unit price setting is cleared when the weight value is zero. It works to calculate the price based on the unit weight.

Therefore, the reliability of the price displayed on the display section 3 is improved.

The unit weight instruction once stored in the operation confirmation unit 10 can be canceled by operating the clear button 8 only when the weighed value is at the zero point, so the unit weight can be changed to the current 1/2 pound. If you want to change from per pound or per 1/4 pound, operate the clear button 8 with the weight value at zero point, and if you want to change to per 1/4 pound, press the clear button 8.
Operate 1/4 button 7b. In the above embodiment, the unit weight setting section 7 is provided with a 1/2 button 7a and a 1/4 button 7b whose unit weights are preset to 1/2 pound and 1/4 pound, respectively. It is also possible to provide a mode switch that can be set arbitrarily, and to use, for example, a numeric keypad for setting the unit weight when the operation confirmation section 10 confirms the operation of the mode switch.

In the above embodiment, the operation to change the unit weight is performed by operating the clear button 8 at the zero point of the weight value and the unit weight setting section 7, but the 1/2 button of the unit weight you wish to change, It is also possible to configure the device so that the previous operation can be cleared by operating the 1/4 button, etc., and the newly instructed one can be stored. That is, if it is possible to clear the unit weight and set the unit weight at the zero point, and deny the clearing and setting of the unit weight at points other than the zero point, the reliability of price display can be similarly improved.

Further, in the above embodiment, the operation confirmation section 10 accepts the operation of the unit weight setting section 7 and the operation of the clear button 8 only when the weight value is at the zero point as determined by the weight value discrimination section 9. I configured it like this, but
This does not need to be set at the zero point, but the operation confirmation unit 10 may be controlled with a predetermined weight near the zero point as the boundary.

〓〓〓〓
As explained above, according to the present invention, in a rate scale in which the unit price is set using the fractional method or the buy-count method, the unit weight is determined by determining that the weighed value is within a predetermined range, and the set unit weight is set. The unit weight can be cleared even if the unit weight setting section, etc. is operated incorrectly during weighing. The settings can be prevented from being updated, and the erroneous price display due to the above-mentioned erroneous operation will not occur, and the reliability of the price display of the object to be weighed will be improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a configuration diagram of a charge scale, and FIG. 2 is an explanatory diagram of FIG. 1. 1...Micro computer, 2...Measure section, 3...Display section, 6...Numeric keypad, 7...Unit weight setting section, 8...Clear button. 〓〓〓〓

Claims (1)

[Scope of utility model registration request] In a rate scale where unit price is set by setting the unit price amount and setting the unit weight of the unit price amount, the unit weight is set and the set unit weight is cleared after determining that the weighed value is within a predetermined range. The toll scale is configured such that the clearing and unit weight setting operations are denied when the weighed value is outside the predetermined range.