JPH0378601A - Scale of variable reduction ratio - Google Patents

Abstract

PURPOSE:To indicate a plurality of reduction ratios by one scale and thereby to improve the efficiency of design, measurement, drawing, etc. by using liquid crystal display for divisions of the scale and by making the divisions variable corresponding to the reduction ratios in a plurality. CONSTITUTION:Liquid crystal divisions 2 and a reflector 3 are fitted on the lower side of the main body part 1 of a scale of a transparent acrylic resin plate, and a keyboard 5 having a function of central arithmetic processing and a solar cell 6 are disposed thereon. For indicating a desired reduction ratio, a key A of a computation method selecting key 13 is selected, the number of a reduction ratio desired to use is inputted by a data input key 7 and an enter key 14 is pushed. Reduction ratios such as 1/100, 1/150, 1/200 and 1/500 are inputted beforehand in the keyboard 5 and divisions of a reduced scale corresponding to the number inputted by the input key 7 are displayed in the liquid crystal divisions 2, while the reduced scale is displayed simultaneously in a display unit 12. Therefore, it is unnecessary to replace scales and thus an efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a variable scale scale used in design, measurement, drafting, etc., which can electronically call up and display a plurality of scale scales.

[Conventional technology]

Conventional scales have graduations of one scale engraved on one scale, and when drawing a drawing at a different scale, the scale must be replaced with a scale that has graduations of that scale. There wasn't.

The reference line of the drawing may be on the right or the left, but when drawing the drawing, either replace it with a scale that matches the reference line, or use the scale in use and calculate the position from the opposite side by subtraction. was. Additionally, when adding to a drawing whose scale factor was unknown, it was customary to measure the dimensions of each drawing using a scale, calculate the scale factor, and then draw a line based on the length of each scale unit. In addition, depending on the drawing, uniform scales may be drawn, but in the same way as in the case above, dimensions were measured and calculated for each scale.

All of these are factors that reduce work efficiency when drawing drawings, and improvements have been desired.

[Purpose of the invention]

This invention has been made in view of the above-mentioned problems. The purpose is to propose a variable scale scale that can electronically call up and display scales of multiple scale rates on a single scale, and that can accommodate multiple scale rates without changing the scale.

[Structure and Examples of the Invention]

This variable scale scale is characterized in that the scale graduation is a liquid crystal display, and the scale is variable and corresponds to a plurality of scale rates.

Hereinafter, this variable scale scale will be explained using an example illustrating the variable scale.

In Figure 1.2.3, the main body part 1 of this scale is made of a transparent acrylic resin plate with a trapezoidal cross section, and has a liquid crystal scale 2 along the lower surface and the side edge, and a reflective mirror 3 attached to the lower layer. A reinforcing steel plate 4 is attached along the longitudinal direction near the other edge. A keyboard 5 with a central processing function and a solar cell 6 are disposed on the top surface of the main body 1.

The keyboard 5 includes a data input key 7, a power key 8, a scale lock key 9, a left and right scale start point switching key 10, a scale rate number display 11, a scale rate display 12, and a calculation method selection key 13.
and an enter key 14.

This variable scale scale has the above-mentioned configuration. To display the desired scale scale on this scale, select key A of the calculation method selection key 13, and then enter the number of the scale scale you wish to use in the data box. -7 manually and press enter key 14. For example, 1/100.1 is preset on the keyboard 5.
/150°1/200.11500..., etc., and the scale of the scale corresponding to the number of the data entry key 7 that you just entered is displayed on the LCD scale 2. Ru. At the same time, the scale factor is displayed on the scale factor display 12. In addition, since the numbers entered manually using the data operator 7 are also displayed on the scale ratio number display 11, the numbers entered manually and the scale ratio can be accurately determined without looking at the manual.

In this way, if you leave the display scale of the selected scale as it is, you can easily change it to another scale by accidentally touching the keyboard while working.
To prevent this, press ON on the scale lock key 9 to lock it. If you want to select another scale factor, press OFF to release the lock.

To determine whether the starting point of the liquid crystal scale 2 should be left or right, press the right side of the starting point switching key 10, and the starting point of the scale will be 0 displayed at the right end of the scale, and the scale will become larger toward the left. When you press the left, the left end becomes O, and the value increases toward the right. In this case as well, the scale lock key 9 functions effectively.

If the scale of the drawing is unknown and you want to determine it from the drawing and display a scale corresponding to that scale, press the calculation method selection key 13.
Select key B, input the drawing display dimensions using data input key 7, and press enter key 14. Next, enter the actual measurement values on the drawing manually and press the enter key 14. The two input numbers are calculated inside the keyboard, and the calculation result is displayed on the scale rate display 12.
and is displayed on the scale rate number display 11, and at the same time, the scale of that scale rate is displayed on the liquid crystal scale 2.

If the calculation result is an intermediate value, the scale rate display 12
The displayed number blinks. If it blinks, use the method described above to find a scale rate close to that value, that is, call up the scale rate number manually using data input key 7.
Switch to that scale and use it. In this case as well, the scale lock key 13 functions effectively.

To equally divide two points on the displayed liquid crystal scale plate 2, select C on the calculation method selection key 13, read the position of one end on the liquid crystal scale 2 displayed on the base, and read the value on the data screen. −
Manually press 7 and confirm with enter key 14. Next, input the numerical value at the other end position in the same manner using the data input key 7, and confirm with the enter key 14.

Then, an equal division scale is displayed on the liquid crystal scale 2, and an equal division number is displayed on the scale rate display 12. In this case as well, the scale lock key 9 functions effectively.

This scale uses AClooV as a power source, and
The attached solar cell 6 can be operated as a power source. The scale is displayed in metric units, as well as inches, shaku, and shaku.
You can switch to display units such as yards or feet, and you can switch the frame based on the word processor print character size to both horizontal and vertical.

In the above embodiment, the keyboard 5 is built into the scale body 1, but the keyboard 5 and the scale body 1 can be separated and the scale display on the scale body 1 can be controlled from the keyboard 5 by remote control using radio waves or light. You can also. If you do this, for example horizontally.

Two scales in two orthogonal vertical directions can be controlled simultaneously with one keyboard.

In addition, as a means of selecting a scale rate, the numerical values of multiple scale rates set in advance are automatically changed and displayed in sequence on the scale rate display, and when the desired scale rate is displayed, the enter button is pressed. It is also possible to press a key to confirm the scale factor and display the scale.

[For production]

This scale rate variable scale has the above configuration and can call up multiple scale rates and display the scale, so you can
One scale can be used for measurements, drawings, etc. at multiple scales without having to change scales for different scales.

The scale of the embodiment can easily switch the reference line left and right, display the scale of a drawing whose scale is unknown, or display equally divided graduations, etc., without changing the scale. Further, a reflecting mirror is attached to the lower layer of the liquid crystal scale, and by reading the scale at a position where the lines of the scale and the image reflected by the reflecting mirror overlap, accurate reading of the scale can be achieved.

〔Effect of the invention〕

This invention is as described above, and is designed to be able to display multiple scale factors in one scale.

Efficiency in measurement, drafting, etc. can be improved.

[Brief explanation of drawings]

The drawing shows the variable scale scale of the embodiment,
FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. 3 is a sectional view. 1...Scale body, 2...Liquid crystal scale, 3...Reflector, 4...Steel plate, 5...Keyboard, 6...Solar battery, 7...Data person key-8...Power key, 9...Scale lock key 10...
Starting point switching key 11...Scale rate number display, 1
2...Scale rate display, 13...Calculation method selection key 14...Enter key

Claims (1)

[Claims] (1) A variable scale scale, characterized in that the scale graduation is a liquid crystal display, and the scale is variable and corresponds to a plurality of scale rates.