JPS6244334Y2 - - Google Patents

Description

[Detailed description of the invention] This invention electrically measures minute dimensional displacements of the object to be measured using a detector, and displays the amount of minute dimensional displacements by emitting light from a large number of light emitting elements lined up. The present invention relates to a scale display device for a measuring instrument in which the display state is read from a scale plate provided on the side surface.

In conventional analog meters that indicate minute displacements, changing the indicated value by changing the magnification is done by holding each scale for each magnification in the indicator part of the meter at intervals above and below, and changing the value at the point on the scale that overlaps with the pointer. was reading. However, since a bar graph does not have a pointer, it is difficult to overlap the indicator with several scales corresponding to the magnification by changing the magnification. Therefore, it is necessary to appropriately select a plate that shields a part of the light emitting element on the scale plate that serves as a reference. This is intended to accommodate changes in scale due to magnification switching by placing the image on the screen.

As shown in FIG. 1, the conventional bar graph is constructed by elongating the 5th and 10th digits 2 and 3 (hereinafter, the lateral dimension of the scale in FIG. 1 will be explained as length). ) Manufactured to be easy to read.

However, once a conventional bar graph has been manufactured, it is not possible to change the shape of the scale, such as the length of the scale or the pitch of the scale. It was necessary to select and use the desired one from among the plurality of types of bar graphs produced, which was uneconomical.

The present invention attempts to obtain a scale plate with a desired scale length by preparing a standard scale plate with equal scale lengths and shielding it appropriately.

In FIGS. 2 and 3, scales 4 of equal length are provided at equal intervals on the reference scale plate.

Then, a shielding plate 5 is made to shield part of the length of the scale. Then, cutouts 6 and 7 are cut in the shielding plate 5 so that the length of the shielding part is shortened at the 5th place and not shielded at the 10th place, for example, with respect to the scale 4 of the scale plate. Attach it on top of the reference scale plate as shown in the figure.

Then, on the left side of scale 4, the 1s digit ~
Up to the 4th place, the length of the scale is about half, at the 5th place about 3/4, and at the 10th place there is no shielding, and it is possible to obtain almost the same effect as in Fig. 1. The invention of the present invention is of course not limited to the above-mentioned embodiment, and if you want to change the position of the scale, for example to make it longer every other time, you can just make a cut in the shielding plate, and the scale can be adjusted. The display method can be changed freely by simply changing the notch in the shielding plate without changing the screen. In addition, when the scale pitch changes due to changes in magnification, etc., a notch 7 is provided for each scale pitch as shown in Fig. 4, and only the necessary scale is displayed.
The other scales can be shielded to easily accommodate changes in scale pitch.

In addition, if only the notch 7 at the 10th position in FIG. 3 is covered with a colored film, only the 10th position can be colored, making it easier to read. As a result, without changing the standard scale plate, by appropriately replacing only the shielding plate attached on top of it,
Since it can be used in a wide range, manufacturing costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the scale plate of the bar graph, Fig. 2 is an explanatory diagram showing the installation of the scale plate and shielding plate of the present invention, Fig. 3 is a plan view of the shielding plate, and Fig. 4 is an explanatory diagram of the scale plate of the present invention. FIG. 3 is a plan view of a shielding plate showing an example. 1...Plate, 2...5's scale, 3...10's scale, 5...shielding plate, 6,7...notch.

Claims (1)

[Claims for Utility Model Registration] (1) In a bar graph that digitally displays the amount to be displayed by emitting and extinguishing light from regularly arranged light emitting elements, the length of the scale is determined by emitting constant light. A bar consisting of a reference scale plate with elements arranged at equal intervals and a shielding plate placed on top of the standard scale plate and shielding part or the entire length of the light-emitting elements on the reference plate. graph. (2) A bar graph as set forth in claim 1, wherein the shielding state of the shielding plate is constituted by a dark portion that completely blocks light. (3) In the statement of claim 1, the bar graph is constituted by a colored thin film that allows light of a specific color to pass through the shielding state of the shielding plate.