JP3020654U - Percent scale - Google Patents

Abstract

(57) [Abstract] [Purpose] A measuring instrument that can directly measure the original length even if a reduced scale drawing originally written in A2 is reduced to A3 [Structure] Reduction or enlargement by changing the paper by copying, printer, etc. Measuring instrument formed by reducing or enlarging the scale interval of the measuring instrument with the same magnification to measure the length of the drawing directly. [Effect] The drawing that should be written on the original size paper is copied, It is possible to directly measure the original length of a drawing that has been reduced or enlarged by changing the paper using a printer, etc.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a measuring instrument for measuring length.

[0002]

[Prior art]

 When the size of the paper is reduced or enlarged by copying, printer, etc. as the drawings based on CAD become widespread. For example, on a reduced scale drawing originally written in A2, the drawing is reduced to A3. When you want to measure an arbitrary original length With a conventional measuring instrument, read the scale and calculate it with a calculator or the like to calculate the original length, or whether to measure the original length again with the drawing returned to the original scale. It was common to take complicated procedures.

[0003]

[Problems to be solved by the device]

 In this way, when the size of the paper is changed with reduction or enlargement using a copy, printer, etc. In the case of a drawing that was originally drawn on a reduced scale of A2 and reduced to A3, the scale of the conventional measuring instrument remains the same. It is not possible to read and measure the original length.Therefore, read the scale with a conventional measuring instrument and calculate it with a calculator etc. to calculate the original length. There was a problem that had to be measured. The present invention has been made in view of the above point, and an object thereof is to provide a measuring instrument which can directly measure the original length of a drawing which is originally written in A2 and is reduced to A3.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the measuring instrument according to the present invention is a drawing in which a scale drawing originally written in A2 is reduced to A3. In order to directly measure the original length as it is, a reduction ratio of the drawing from A2 to A3 is 70. It is formed by marking 7% on a conventional measuring instrument with a scale interval reduced to the same magnification of 70.7%.

[0005]

[Action]

 The measuring instrument formed in this way has the same scale interval magnification as the drawing. It is possible to directly measure the original length directly from the scaled drawing originally written in A2 to a drawing reduced to A3.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 shows the whole measuring instrument. The measuring instrument of this example is a known difference and the graduation interval length (2) is the same as before. The graduation interval length of (3) is the graduation of (2). It is formed by reducing the interval length to 70.7% and marking the scale.

The measuring instrument formed in this way has the same scale ratio of the reduced drawing and the scale interval length, and it is a reduced drawing of A2 originally drawn in A3. It is formed so that the length of can be measured.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications can be made without departing from the spirit of the present invention. Differences in paper For example, a drawing reduction ratio of 81.6% from B4 to A4 is marked on the measuring instrument with a scale interval reduced to 81.6%, and A4 is an enlargement ratio of drawing to A3. Magnification of 141.4% to the measuring instrument at the same magnification of 141.4% Differences in magnification, such as those formed by marking at scale intervals. Triangular scale, etc. Originally used at a reduced magnification of 1/200, 1/50, etc. Further, similarly, it is possible to appropriately change, for example, those formed by marking with a scale interval of 70.7% reduction or enlargement magnification and the like due to the difference in length, color, material shape, etc. of the scale measuring instrument.

[0009]

[Effect of device]

 Since the present invention is configured as described above, a drawing drawn on the original size of the paper is copied, or the drawing is reduced or enlarged by changing the paper by a printer, etc., and the original length is directly measured. It has the effect of being able to.

[Brief description of drawings]

FIG. 1 is a plan view of the difference between the embodiments of the present invention.

FIG. 2 is a perspective view of an end portion of a triangular scale according to another embodiment with a part thereof omitted.

[Explanation of symbols]

 1 Measuring instrument In this case, it is a difference 2 Scale from the conventional 3 Scale that reduced the scale interval of 2 to 70.7% 4 Measuring instrument In this case, the scale interval of 5 1/100 which is a triangular scale is 70.7% Reduced scale 6 Scale of 1/200 scale reduced to 70.7%

Claims (1)

[Scope of utility model registration request] 1. To measure the length of a drawing that has been reduced or expanded by copying or changing the paper by a printer, etc., the scale intervals of the measuring instrument are marked at the same scale or expanded or reduced. Characteristic measuring instrument