JPS5848585Y2 - electric metering device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an electrical metering device.

The known electrical weighing device includes an electric balance with a transducer and a device for digitally indicating the weighing result, and a programmed small computer that stores various computer programs and is thereby able to select various functions of the balance. It consists of command keys that give individual operating commands to the computer.

There is a corresponding key for each operation command.

Therefore, as the number of commands increases, the number of keys also increases correspondingly.

A large number of keys not only requires more space, but also reduces visual clarity and increases the risk of erroneous operation, which is not desirable.

On the contrary, what is needed in a modern balance is its simplicity, ease of use, and functional reliability.

The present invention consists of an electric balance with a transducer and a device for digitally displaying measurement results, a small computer programmed with multiple computer programs stored in memory, and a plurality of programmed small computers so that various functions of the balance can be selected. a program selection switching device for selecting a desired one of the programs; a keyboard with command keys for respectively giving separate operating commands to the computer; It can be fixed in an operating position close to the machine, and in that operating position, due to its own special design, it is placed on a program selection switching device, so that only one specific program or only a few programs from among the selectable ones can be selected. It is an electrical weighing device consisting of a plurality of templates with a command symbol entry area which operates and interacts with an associated command key for entering a corresponding command.

In one preferred embodiment, the template has notches corresponding to selected positions of a multi-position movable selection switch forming a program selection switching device.

In another particular embodiment, the template has an extension which, in the actuated position, selectively controls the state of a plurality of program selection switches forming a program selection switching device.

In this case, the device is provided with a hole for receiving and holding any one of the templates in the working position.

Depending on the type of balance used in this device, various aspects can be developed.

In order to greatly reduce the vibrations caused by operation, it is desirable that at least the keyboard be placed in a housing separate from the balance and connected to the balance with a conductor.

Separate from the keyboard, it is also possible to include subassemblies such as a computer or printer in a separate housing if desired.

To ensure that the desired template is always easily accessible when changing programs, use the keypad to store unused templates.
Drawers or other compartments may also be provided within the housing that supports the board.

Figure 1 shows a converter (not shown) and a digital output 1.
2 shows an electric weighing device comprising an electric balance 10 having an electric balance 10;

The balance 10 will not be described in detail since its design is not an essential feature of the invention.

The balance 10 has a small computer 14 containing a program.
are linked.

The computer 14 may be a microcomputer or a desktop computer.

Computer 14 is associated with a keyboard 16 having a program selection switch 18 and command keys 20 (also referred to as function or activation keys).

Additionally, the keyboard 16 may be provided with a key area (not shown) for entering numeric input.

The program selection switch 18 selects one of the programs stored in the computer through the conductor 2.
2, the command keys 20 communicate individual operating commands to the computer 14 via conductors 24.

Finally, a display 28 is provided which is operated from the computer 14 via conductor 26.

The relationships between each of the functional units in FIG. 1 can actually take a variety of very different forms.

Possible forms are balances, computers, keyboards,
There are various types, from compact types in which the display device is housed in a single housing to modular types in which each functional part is housed in its own housing.

It is convenient to have two housings, one containing the balance, display and possibly a minicomputer, and the other housing the keyboard and possibly the minicomputer and, if necessary, a second display. to accommodate.

Next, a first embodiment of the present invention will be described with reference to FIGS. 2 to 5.

The housing consists of a bottom part 30 and a cover 32.

At the front of the cover 32 there are two command keys 34 and 36 that protrude from the cover, which are connected to the first intermediate support 3.
Activate the two switches attached to 8.

Three program selection microswitches 40, 42, and 44 are mounted on the intermediate support 38.

The node wire 46 connecting the five switches is a cable 48
connected to the computer.

There is a second intermediate support 50 cm which is slightly elevated.
The housing has three spring-loaded ears 52 at its inwardly facing end, which ears support the three microswitches 4.
It rests on the 0.42 and 44 switching protrusions while applying very little pressure.

Further, elastic ears 54 protrude to cover the switches 40 and 44.

The perpendicularly bent intermediate partition 56 and the cover wall 32 form a chamber 58 for holding an unused template 60, which chamber has a hinged panel to allow removal of the template.

The shape of the template is best shown in FIGS. 4 and 5.

The template 60 (60', 60'') is molded from an aluminum plate, and the command symbol entry points 62.64 (62', 64';
62'', 64''), and these are colored so that they can be distinguished from the others.

Furthermore, they have one or more fingers or extensions 66 (66', 66''), the position of which corresponds to the program code.

When the template is inserted into the gap between the cover 32 and the intermediate support 50, the fingers press the corresponding protrusions 52, and through the corresponding microswitches 40-44, a specific one in the program stored in the computer is activated. Select one.

Its size allows the template to be lightly gripped between the cover 32 and the ears 52.

As shown in FIG.
4';62".

64") and is visible from the outside.

Upon insertion of the template shown in FIG. 4, the centrally located finger 66' actuates the program selection switch 42, which selects the net total program.

This program is designed for cases where, for example, weighing has been carried out several times and it is desired to know the total weight.

There is a zero symbol in the previous issue's writing section 62', and 64
' is the net total.

That is, when key 34 (zero) is pressed, the actual weight of the object to be measured is stored and the balance display is set to zero.

On the other hand, when the key 36 is pressed, the total weight of the measurements taken several times is displayed (total weight excluding the tare weight).

In this case, it is assumed that the balance is provided with a tare measurement key that stores the tare value when starting the weighing operation.

The template in FIG. 5 corresponds to a piece counting program.

Finger 66'' depresses program selection switch 40 and command entry areas 62'' and 64'' assign keys 34 and 36 the command to change reference amount and display from weight to quantity, respectively.

Additionally, the template 60 can be used, for example, for percentage weighing or weigh-to-zero programs.

Each template has a green ring 65 at one end of the lower writing section 64 (64', 64'').

When key 36 is pressed, the same ring in front of the numbers on the scale display appears.

This is to indicate that the display is a special display (in other words, total net weight, quantity, etc.) produced by pressing the key 36.

Since three program selection switches 40, 42, and 44 are provided, a total of 8 different programs (23=8) can be selected.

Therefore, the fingers 66 can be installed in various ways on the template.
It is possible to activate one of the two switches (as shown), two of the switches, all three, or none of the switches.

This last case corresponds to template 60"' in FIG. ' is provided.

These fingers 66"' correspond to the outer ears 54 shown in FIG.
Pressed by.

A second embodiment of the invention will be described with reference to FIGS. 6-8.

The housing has a bottom portion 68 and a top portion 70. Inclined part 72
12 to write numeric input, position the decimal point, and clear previous input (e.g. incorrect input).
There are several keys provided.

A multi-position sliding program selection switch 76 is provided at the front end, and has four switching positions, each corresponding to a program in the computer.

The ears of the slide switch 76 protrude into areas into which a plurality of templates 78 fit.

Each template 78 is provided with a notch 80 to ensure precise correspondence between the template and the program.

In the case of the template 78 shown in FIG. 8, the notch 80 is wide so that either of the two adjacent positions of the switch 76 can be selected.

This template has the same function (commands), so the same template can be used twice.
This is useful when it can be used in one program.

For example, this is the case with a weighing program that allows you to arbitrarily select either weight display or quantity display.

The template 78 is provided with writing portions 82 corresponding to five command keys 84 (A-E).

A related program name is written in a large writing section 86 at the bottom end of each template 78.

A deep groove 88 is provided on the right side of the five command keys 84 (A-E) to store an unused template.

The input value can be monitored on the display section 90 on the upper part 70 of the housing, but it can also be switched to display the weighing results.

It is connected to the scale (or scales) by one or more cables (not shown) that provide signal and control lines.

Apart from the display, the housing contains a programmed mini-computer with a larger storage capacity than the computer of the embodiment of FIGS. 2-5.

This increases the versatility of the program and significantly increases the versatility of the connected scale.

Each of the four programs has multiple functions,
Each function key 84 can be activated.

This is explained in the individual weighing program (No. 8) shown as an example.
It can be seen from the diagram (template).

When the first and second scales are connected to the operating device shown in FIG. 6, pressing key A allows the first scale to be used for both reference weighing and quantity confirmation.

Pressing key B causes the second scale to be used for both functions.

When keys A and B are pressed simultaneously, the first scale is set to determine the quantity, and the second scale is set to determine the reference weight.

When key C is pressed, the reference quantity (for checking the individual weight) that has already been entered is displayed on the display device 90.

This quantity may be kept unchanged (press key C again to store it anew), or it may be newly entered (press key zone 74 and then press key C again).

When key D is pressed, the already stored reference weight appears on the display device 90.

As in the case of key C, this value may be kept unchanged, or a new value may be entered.

When key E is pressed, the confirmed reference weight is transferred from the second scale to the operating device, corrected against the reference quantity for the individual weight, and transferred to the first scale.

When the template of FIG. 8 is used as described above, the program selection switch 76 can be switched from the individual counting position to the weighing position without changing the template.

In this switch position, the scale operates as if no operating device was connected.

Each writing section 82 is provided with a hole 83.

A row of light emitting diodes 85 is provided within the housing, each light emitting diode being associated with a respective key 84.

Pressing a key 84 not only selects a particular function of the program, but also lights up the associated diode 85.

Since this diode is visible through the hole 83, the corresponding writing section 82 appears to be floating.

The operating device according to the embodiment of FIGS. 2 to 5 can use two commands per program and is therefore suitable for simple programs, whereas the embodiment of FIGS. A program can be used.

The increased cost can be compensated for by increased convenience of use.

A printer may be attached to the operating device for recording measurement results and the like.

Furthermore, the computer may be capable of performing the same required calculations as a regular pocket calculator.

In the device described above, the key area is made as small and visible as possible while preserving program versatility, thereby reducing the possibility of operational errors.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of the individual functional elements of the electrical metering device of the present invention, Fig. 2 is a perspective view of a first keyboard provided in a separate housing, and Fig. 3 is a cover of the keyboard shown in Fig. 2. The plan view, Figures 4 and 5 with the
Figure 6 is a perspective view of the second keyboard, and Figures 7 and 8 are diagrams showing templates used in the keyboard of Figure 6, respectively. It is. 14...Calculator, 16...Keyboard, 18...Program selection switch, 36...
...Command key, 60... Template, 64...
...Writing section.

Claims (1)

[Scope of utility model registration request] 1. an electric balance with a transducer and means for supplying digital results; a programmed small calculator storing various computer programs with which various modes of operation can be selected; and a program selection for selecting any program. a keyboard having switch means, a command key for supplying individual actuation commands to the computer, and a plurality of templates, each of which is connectable to the keyboard and can be fixed in an operating position adjacent to the command button; When the plate is in the actuated position, depending on its particular design, a template acts on said program selection switch means to select a particular program, only some of the programs can be selected, said template An electric measuring device characterized by having a writing part corresponding to a command key and for displaying each command. 2. Utility model registration claim 1, characterized in that the template has cutouts corresponding to each position of a multi-position program selection switch constituting program selection switch means.
Electrical metering device as described in section. 3. Utility model registration claim 1, characterized in that the template has an extension portion that controls the state of a plurality of program selection switches constituting the program selection switch means when the template is in the operating position. Electrical metering device as described in section. 4. The electric measuring device according to claim 3, which is a registered utility model, characterized in that an opening is provided into which each of the templates fits and holds the templates in the operating position. 5. The electric measuring device according to any one of claims 1 to 4 of the utility model registration claim, characterized in that at least the keyboard is housed in a housing separate from the scale and connected to the scale by a conductive wire. . 6. The electric measuring device according to any one of claims 1 to 5, wherein a small chamber for storing an unused template is provided in the housing to which the keyboard is attached. 17. The electric appliance according to any one of claims 1 to 6, characterized in that each template is provided with a notch so that a visual signal can be seen in relation to the writing part. Weighing device.