JPH06347314A - Balance for product division - Google Patents

Abstract

PURPOSE:To reduce damage of an object to be weighed and improve efficiency of selection working by providing the balance with a memory, a comparator and the like and showing classes in response to comparison results by voice. CONSTITUTION:The weight of objects to be weighted 3 of a container 4 on a mounting base 1 is weighed by a weighing device and stored to a memory of an operation part. When one object to be weighed 3 is taken out, stored values of a first memory and the memory which indicates after it is taken out are compared with each other with a comparator, its difference is calculated with the comparator, contents of the first memory is replaced by that of the later memory, its difference is shown on a display 5, its differential weight is compared with a reference value of a predetermined reference memory, and between which reference values its difference is positioned is recognized. As a result, identification is performed which class it is divided into and it is shown by voice. A worker houses the objects to be weighed 3 taken out from the container 4 to respective vessels 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scale which allows fruits and vegetables such as strawberries, ripe tomatoes, watermelons and pumpkins, and in some cases, fresh foods such as fish to be easily sorted by weight.

[0002]

2. Description of the Related Art For strawberries, tomatoes, watermelons, squash, etc., a farmer collects these things from a field, collects them in a container made of plastic, etc., brings them to a sorting station, and takes one from the container. They are taken out one by one and sorted and shipped according to their size or weight.

In such a classification, a rough classification can be performed with the eyes, but since the subjective standard may fluctuate during the classification, in order to eliminate such a fluctuation, put each on a scale. It is a conventional practice to weigh and sort according to the weight.

However, in the case where the work is carried out on the scale one by one, and further put in the container for sorting, when loading from the container to the scale and when putting from the scale into the container for sorting, The object to be weighed may be damaged by being touched by the human hand twice.

Further, since the person who works to compare the weight indicated by the scale with the reference requires extra work to judge the comparison with the reference value, the work efficiency is poor and the work becomes very tired.

In view of these points, recently, the whole container containing fruits is placed on a scale, and the weight reduced each time one fruit is taken out from the container is shown numerically on the display panel of the scale. Depending on the size of the fruit L, M, S
It has been proposed to display characters on a display panel in such a manner (Japanese Patent Publication No. 3-33391).

[0007]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
According to the selection method and the apparatus therefor disclosed in Japanese Patent No. 391, the fruit may be taken out of the container and put in a shipping container in accordance with the indication on the scale at that time. Therefore, the human hand only touches once, and the fruit is prevented from being damaged by the human hand touching it many times.
Further, since the size divisions are displayed in characters on the display panel of the scale, the operator does not have to think about the divisions, which facilitates the work.

However, the operator has to visually check each character-displayed section, and it is necessary to always visually check the dial in the actual sorting and shipping work, which causes eyestrain. . In particular, recently, the agricultural workers are aging, and many people find it difficult to see or read such a display board. Also, since the display panel is placed in a position where it is easy to see, and the operator needs to look at it from an angle that is easy to see, there is no freedom of work,
It was not always efficient because I could not do other work together.

[0009]

SUMMARY OF THE INVENTION The present invention is described in Japanese Patent Publication No. 3-33391.
By eliminating the drawbacks of the method and apparatus described in the publication,
During the sorting work, the workers can hear the sorting result by hearing and can sort it, avoiding looking at each eye to eliminate eye fatigue, and other work in parallel with the sorting work. It is an object of the present invention to provide an apparatus which can be performed by the above.

[0010]

According to the present invention, there are provided a platform on which an object to be weighed is placed, an arithmetic unit for measuring the weight of the object to be weighed on the platform, and a display unit for displaying a signal based on a signal from the arithmetic unit. When the weight of the object to be weighed on the platform changes from the weight stored in the memory, the calculation unit calculates the weight difference and stores the weight. An arithmetic unit for rewriting the memory according to the new weight of the object to be weighed on the table, means for giving a preset reference value,
And a comparator that compares the weight difference calculated by the arithmetic unit with a reference value of a means for giving the reference value, and voice display is performed from the display unit according to the comparison result of the comparator. Achieve the above objectives by the featured product sorting scale.

[0011]

In the present invention, the above-mentioned Japanese Patent Publication No. 3-333 is used.
In the publication No. 91, the weight section which is displayed on the display panel in a character form is directly voiced according to the section, for example,
"L", "M", "S" voice, or
The operator is informed by voices such as "large", "medium", and "small".

Therefore, when the operator takes out the object to be weighed from the container without looking at the character display panel, the operator can sort the objects according to the sound output from the machine ("L" or "M"). All you have to do is to select the objects to be weighed in the container. In this way, the operator does not have to look at the display panel one by one and can work even when the display panel is away from the scale, and the work is very easy because there is no need to be in a position where the character display can be easily seen on the display panel. Also, by making it possible to change the volume of the sound by the volume, the device can be easily used by the elderly and deaf people.

Further, in the present invention, the means for giving the reference value may be composed of a card in which a plurality of reference values corresponding to the objects to be weighed are recorded and a reference value reading member recorded in the card. By doing this,
By exchanging the card according to the object to be weighed, this scale can be used for various objects to be weighed, and the operator does not have to set the setting value according to the object to be weighed, Easy to set.

[0014]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic perspective view of the device of the present invention, in which a platform 1 is provided on a scale main body 2 and a container 4 accommodating a large number of weighing objects 3 is placed on the platform 1. .

This mounting table 1 is connected to a weighing device 11 (FIG. 2) such as a mechanical weighing mechanism or an electrical weighing mechanism such as a load roll, as in the case of a conventional generally used weighing scale. The weight of the object (the container 4 in this embodiment) placed thereon is detected.

The detected weight may be displayed on the display unit 5 standing upright from the main body of the balance, as will be described later, or when the object 3 to be weighed is taken out from the container 4. The absolute value of the difference may be displayed. Further, the difference may be compared with a reference value and the grade may be displayed accordingly. The display of the total weight and the display of the difference weight are appropriately omitted to simplify the device,
It may be cheap.

However, a feature of the present invention is that the operator is informed of the display by voice according to the classified grade. This structure will be described below.

As described above, the weight of the object 3 to be weighed stored in the container 4 on the mounting table 1 is the weighing device 1 including a mechanical weighing mechanism or an electrical weighing mechanism such as a load cell.
Measured by 1. The measured signal is stored in the electric memory 12 of the arithmetic unit 10.

Next, when, for example, one object 3 to be weighed is taken out from the container 4 on the platform 1, the weight of the container 4 after being taken out is stored in another second memory 13. In practice, the comparator 14 compares the stored values of the first memory 12 and the second memory 13, and when a difference is substantially detected, the difference is calculated by the calculator 15.

When the difference is calculated in this way, the contents of the first memory 12 are rewritten by the value of the second memory 13, and the difference is displayed on the display panel of the display unit 5. The difference weight is compared with a preset reference value.

In this embodiment, the preset reference value is given from the card 6 in which the IC is attached to the insertion opening of the embedded body display section 5. A plurality of reference values are written in the card 6 in advance, a signal from the reference value is read by the portion where the card 6 is inserted, and the read reference value is stored in the reference value memory 16, The comparator 17 compares the calculated difference number with the reference value stored in the reference value memory 16.

That is, if the difference is 50 g and the reference values are 55 g, 45 g and 35 g,
First, the first reference value 55g is compared with the difference 50g, and it is confirmed that the difference is smaller than the first reference value 55g. Next, the difference 50g is compared with the second reference value 45g, and the difference 50g is Two
It is confirmed that the value is larger than the reference value of 45 g. As a result, it is recognized that the difference 50g is between the first reference value 55g and the second reference value 45g. In this way, since it is between the first and second reference values, it can be seen that the taken out object (weight is 50 g) should be classified into “M” in size. Then, according to the identified range, for example, a sound "M" or "medium" is emitted from the speaker 7 (FIG. 1). In accordance with this voice display, the worker stores the objects 3 to be weighed taken out from the container 4 in the respective containers 8 (FIG. 1).

This voice is the LS pre-installed in the arithmetic unit.
It suffices to synthesize and generate a voice by I or the like. Furthermore, the volume of the voice may be adjusted by the volume 9 provided on the display unit 5 (FIG. 1), which allows the volume of the voice to be different depending on whether the sorting operation is performed outdoors or indoors. If the user is an elderly person or a hearing-impaired person, and when working at a relatively distant place, the leaf sound can be increased to ensure that the voice display can be heard. .

When the object to be weighed next changes, the card 6 is removed, another card in which another reference value is written according to the object to be weighed is inserted, and the reference value is changed. By working in the same manner as above, the classification can be known by voice, and the worker can work very easily.

[0025]

According to the present invention, when the object to be weighed is taken out from the container placed on the cradle, in order to display the grade of the taken out object to be weighed according to the weight, The operator can sort the objects to be weighed into the sorting containers immediately after taking them out of the container, and the chances of touching the objects to be weighed are reduced, so damage to the objects to be weighed by touching the hands is greatly reduced. To be Further, according to the present invention, since the classification is indicated by voice, the operator does not have to consider the weight of the object to be weighed and consider the classification, and the display is not made by observing characters or the like. Since the work is done by voice, the work can be performed easily regardless of the direction in which the work is performed, and the selection work can be performed very easily without the problem that the display is difficult to see in a place where the sunlight is strong. Moreover, even if other work is performed during the sorting work, the sorting work can be performed extremely easily without interruption because the classification is indicated by voice.

[Brief description of drawings]

FIG. 1 is a perspective view of a sorting scale according to the present invention.

FIG. 2 is a flowchart showing the operation of the present invention.

[Explanation of symbols]

 1 platform 3 weighing object 4 container 5 display 6 card 7 speaker 10 arithmetic unit 12 memory 13 memory 15 arithmetic unit 17 comparator

Claims (2)

[Claims] 1. A platform for placing an object to be weighed, an arithmetic unit for measuring the weight of the object to be weighed on the platform, and a display unit for displaying based on a signal from the arithmetic unit, the arithmetic unit being a platform. The memory that stores the weight of the object to be weighed and the weight difference when the weight of the object to be weighed on the platform changes from the weight stored in the memory And a comparator for comparing the weight difference calculated by the arithmetic unit with the reference value of the unit for giving the reference value. A product sorting scale characterized in that a sound is displayed on the display unit according to the comparison result of the containers. 2. The card for recording a plurality of reference values according to the object to be weighed and the reference value reading member recorded on the card, wherein the means for giving the reference value comprises a card. Scales for product classification.