JPH0350418Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an indicator, and particularly to a protective cover for protecting the setting guideline of the indicator.

[Technical background of the invention and its problems]

FIG. 1 shows a conventional example of an indicator equipped with a setting pointer protection cover. A transparent first cover 2 for protecting the scale plate, indicator pointer, etc. is attached to the front of the pointer main body 1, which has a built-in scale plate, indicator pointer, and electric circuit. convex edge 2b
A transparent setting pointer protection cover 4 for preventing arbitrary movement of the setting pointer 3 fitted to the setting pointer installation guide 2a formed into a protruding strip extending parallel to the inside of the setting pointer at a predetermined interval. is the first cover 2
It is attached to the outside of the FIG. 2 shows this state in cross section.

A plurality of setting guidelines 3 are used to display alarm points, rated values, etc. To set alarm points, rated values, etc., remove the setting pointer protection cover 4, fit the plurality of setting pointers 3 into the required positions of the setting pointer installation guide 2a on the front of the first cover 2, and then
The procedure is to attach the setting guide protective cover 4 to its original state.

By using the setting pointer protection cover 4, it is possible to prevent the setting pointer 3 from moving without permission, but the setting pointer 3 may shift or fall due to vibration or impact of the panel or instrument on which the indicator is installed. There were flaws. In order to deal with this, the opening ends of both side walls of the setting guideline protection cover 4 are bent inward at right angles as shown by the two-dot chain line in FIG.
There is a device in which the bent edge 4a is used to press the top surface of the bent portion 3a of the setting pointer 3, but when the top surface of the bent portion 3a is pressed down, the pointer face of the setting pointer 3 tends to rise. Even if it was possible to prevent the setting guideline 3 from falling off, there were doubts about the prevention of slippage, and a sufficient effect could not be obtained.

[Purpose of invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a setting pointer protection cover that is attached over a first cover to prevent the setting pointer from shifting or falling off, as well as preventing it from lifting up.

[Summary of the invention] In view of the drawbacks of the prior art described above, the present invention has an object to realize a setting pointer protection cover that can prevent the setting pointer from shifting or falling off, as well as preventing it from lifting up, by being attached over the first cover. In order to solve this problem, the present invention has the opening ends of both side walls of the setting pointer protection cover fitted into the convex edge of the first cover and the setting pointer mounting guide, with a step between the opening ends of the side walls and the outer surface of the side walls. The thin edge is formed so that it can be fitted into the gap between the folded part of the setting pointer and the bent part of the setting pointer, and a pointer holding plate is attached to the inner surface of the front wall of the setting pointer protection cover that faces the pointer surface of the fitted setting pointer. By attaching this setting pointer protection cover over the first cover, the thin edge fits into the gap between the convex edge of the first cover and the bent part of the setting pointer, and the bent part of the pointer and the pointer attachment are connected to each other. The pointer is brought into close contact with the guide to prevent the pointer from shifting or falling off, and the pointer pressing plate presses the pointer surface of the setting pointer to prevent the pointer surface from lifting up. As a result, displacement, falling off, and lifting of the setting pointer are completely prevented.

[Example of idea]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 shows the appearance of a setting pointer protection cover according to an embodiment of the present invention, and FIG. 4 shows a cross-sectional view of the setting pointer protection cover of FIG. 3 attached to the first cover of the indicator.

Setting guideline protective cover (hereinafter referred to as protective cover)
Reference numeral 11 is made of a transparent material, and is formed into a lid shape with a curve that matches the curve of the first cover 2 of the indicator body 1. Both side walls 1 of the protective cover 11
The opening end of 2 has a step with the outer surface of the side wall, and is thin enough to fit into the gap between the convex edge 2b of the first cover 2 and the bent part 3a of the setting pointer 3 fitted to the setting pointer attachment guide 2a. It is formed on the edge 13. Further, on the inner surface 14 of the front wall of the protective cover 11, as shown in FIG. A pointer pressing plate 15 for applying pressure to the setting pointer 3 is provided in a protruding manner in the form of a partition at a position facing the pointer surface of the setting pointer 3.

As shown in FIG.
When attached over cover 2, protective cover 11
The thin edges 13 formed at the opening ends of both side walls 12 of the first cover are connected to the convex edge 2b of the first cover and the bent portion 3a of the setting pointer 3 which is fitted to the setting pointer attachment guide 2a at the bent portion 3a. Pressure is applied to the pointer surface of the setting pointer 3 by the pointer presser plate 15, which fits into the gap created between the protective cover 11 and the inner surface 14 of the front wall of the protective cover 11. It is fixed. This completely prevents the setting pointer 3 from shifting, falling off, or floating due to vibration or impact.

[Effect of idea]

As detailed above, according to the present invention, the setting pointer is attached to the setting pointer protection cover that is fitted into the setting pointer installation guide of the first cover of the indicator body to prevent the setting pointer from moving without permission. A thin edge that fits between the bent portion of the setting pointer fitted to the guide and the convex edge of the first cover is formed at the open ends of both side walls of the protective cover, and a thin edge is formed on the inner surface of the front wall of the protective cover. By protruding the pointer holding plate,
When the setting pointer protection cover is attached over the first cover, the setting pointer is firmly fixed by the thin edge and the pointer holding plate, and the setting pointer is prevented from shifting, falling off, or floating due to vibration or impact. This can be completely prevented.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional example of an indicator equipped with a setting pointer protection cover, Fig. 2 is a sectional view showing a conventional setting pointer protection cover attached to the first cover of the indicator, and Fig. 3 4 is a perspective view showing the external appearance of a setting guideline protection cover according to an embodiment of the present invention, and FIG.
FIG. 3 is a sectional view showing a state in which the setting pointer protection cover shown in the figure is attached to the first cover of the indicator. 1... Indicator body, 2... First cover, 2a...
...setting pointer installation guide, 2b...convex edge, 3...setting pointer, 3a...bending part, 11...setting pointer protection cover, 12...side wall, 13...thin edge, 1
4... Inner surface of front wall, 15... Pointer holding plate.

Claims (1)

[Scope of utility model registration request] A convex strip attached to the front surface of the indicator body, having convex edges along the entire length on both ends of the front surface, extending parallel to each of these convex edges at a predetermined gap, and having a predetermined width and height. The transparent first cover has a setting pointer installation guide formed therein and into which the bent part of the setting pointer is fitted, and is attached to the outside of the transparent first cover, and the opening ends of both side walls have a step with the outer surface of this side wall. 1. A pointer surface of the setting pointer fitted into the pointer mounting guide is formed into a thin edge that can be fitted into the gap between the convex edge of the cover and the bent portion of the setting pointer fitted into the setting pointer mounting guide. A setting pointer protection cover having a pointer holding plate protruding from the inner surface of the front wall at a position opposite to the setting pointer.