JPH0541361Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a measuring device that simultaneously measures the amount of twist and curl of an extremely thin strip material to be measured when it is suspended.

[Prior art] Conventionally, there was no dedicated measuring device for measuring the amount of twist and curl of each strip to be measured, so scales and protractors were used to measure the amount of twist and curl of individual strips to be measured. was being measured.

As shown in the plan view of FIG. 2A and the side view of FIG.
When the strip 1 to be measured is hung from the wall 2, the twist amount θ° of the strip 1 to be measured is expressed as sin ^-1 (a-b/W), but the extension of the wall surface and the Since the point of intersection with the extension of the measuring strip 1 changes, a normal protractor causes a large measurement error. Similarly, the method of determining twist calculated from scale measurements also has a large error.

[Problems to be solved by the invention] In short, in the conventional technology, there was a problem that measurement ability was low and measurement took time because there was no dedicated measuring device. Furthermore, even when a scale or protractor was used, there was a problem in that the measurement error was large.

An object of the present invention is to solve the problems of the prior art described above and to provide a new measuring instrument that can simultaneously and efficiently measure the twist and curl of a strip to be measured.

[Means for Solving the Problems] The simultaneous measurement device for torsion and curl according to the present invention includes a support that hangs the strip to be measured, and this support is erected in the center and measures the amount of twist of the strip to be measured. A fixed disk is provided with a scale engraved on the periphery to indicate the angle, and a hole is placed in the center of the fixed disk to allow the support to pass through. It consists of a rotating disk with a linear scale engraved on its entire surface.

[Function] According to the present invention, the twist and curl of the strip to be measured can be measured at the same time, thereby improving measurement ability and accuracy.

[Example] Figures 1A and 1B are a plan view and a side view, respectively, showing an embodiment of the present invention. 3 hangs the strip 1 to be measured. The fixed disk 4 has a support 3 erected at its center, and a scale 4a indicating the amount of twist of the strip 1 to be measured in terms of angle is carved around the support. The rotating disk 5 is placed on the fixed disk 4 and has a diameter smaller than that of the fixed disk 4. The support 3 is passed through a hole in the center of the rotating disk 5, and the strip to be measured is placed on the entire surface of the rotating disk 5. A scale 5a is engraved to indicate the curl amount of 1 with straight parallel lines.

When measuring the amount of twist and curl of the strip 1 to be measured using a measuring instrument having such a configuration, the strip 1 to be measured is suspended from the support 3. Then, the rotating disk 5 is set at its scale 5.
Rotate until a becomes parallel to the straight line of the free end of the strip 1 to be measured, and then stop. In this state, the amount of curl of the strip 1 to be measured can be determined by reading the scale 5a at the portion where the straight portion of the free end of the strip 1 to be measured is located. Further, in this state, by reading one of the scales 5a, for example, the scale 4a on the fixed disk 4 that corresponds to the scale passing through the center of the support 1, the amount of twist of the strip 1 to be measured can be determined.

As described above, according to the measuring device of the present invention, the amount of twist and curl of a strip can be easily determined in one operation without using a scale or a protractor.

Note that since no special load is applied to the simultaneous measuring device of the present invention, there are no special restrictions on the material, except for wood, etc., which are significantly affected by outside air temperature and temperature changes.

[Effects of the invention] According to the invention, for example, whereas conventionally only 40 strips could be measured in one hour, as many as 100 strips could be measured, reducing the measurement time to 1/2.5. Also,
Conventionally, the amount of torsion could only be measured up to ±2°, but with the present invention, it can be measured up to ±1°, which also has the effect of improving measurement accuracy.

[Brief explanation of the drawing]

1A and 1B are a plan view and a side view, respectively, showing an embodiment of the present invention, and FIGS. 2A and 2B are a plan view and a side view, respectively, for explaining the prior art. 1... Strip material to be measured, 3... Support column, 4... Fixed disk, 4a... Torsion amount scale, 5... Rotating disk, 5
a... Curl amount scale.

Claims (1)

[Scope of utility model registration request] A column to which one end of the strip to be measured is fixed and suspends the strip to be measured; and this column is erected in the center, and a scale indicating the amount of twist of the strip to be measured in terms of angle is carved on the periphery. a fixed disk, placed on this fixed disk and having a smaller diameter than this fixed disk;
A rotary disk having a hole provided in the center thereof to pass through the support and having a scale engraved on the entire surface thereof to indicate the amount of curl of the strip to be measured using straight parallel lines. Simultaneous measurement device for twisting and curling measurement strips.