JPH0731359Y2 - Indicator instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an indicator instrument having a pointer, and in particular, has a structure in which an existing instrument can be used as a remote instrument.

[Prior Art] FIG. 2 shows an example of a normal indicator (thermometer, oil level gauge, pressure gauge, etc.).

10 is a pointer, 12 is its rotating shaft, 13 is a mechanical part (driving, controlling, braking, etc.), 14 is a scale plate, 16 is an outer box, and 18 is a front glass.

[Problems to be Solved by the Invention] The above instrument cannot be directly used as a remote instrument.

In order to give a remote indication of the measured quantity, the instrument usually has to be replaced.

[Means for Solving Problems] The present invention has a structure in which an existing indicating instrument can be easily modified into a remote measuring instrument. As shown in FIG. 1, (1) the same as the rotating shaft of the pointer 10. A follow-up shaft 22 that rotates around the central axis is provided so as to penetrate the front glass 18 of the instrument, and (2) the drive arm 26 is fixed to the follow-up shaft 22, and the tip of the drive arm 26 is the pointer 10 Is mechanically connected to the tip of (3), and an electric value converter 20 for converting the rotation of the follow-up shaft 22 into an electric value is provided.

[Example] FIG. 1 is an exploded view.

20 is an electric value converter, which is composed of, for example, a potentiometer.

This is fixed to the center of the front glass 18 by adhesion or the like.

The rotation axis of the electric value converter 20 serves as the following axis 22. It penetrates the center of the windshield 18.

24 is the entire tracking mechanism.

This comprises, for example, a drive arm 26 fixed to the tip of the follower shaft 22 and an inverted U-shaped guide 28 fixed to the tip of the drive arm 26.

The front glass 18 is attached to the outer case 16, the guide 28 is fitted into the pointer 10, and the tip of the drive arm 26 and the tip of the pointer 10 are mechanically connected. Then, the drive arm 26 rotates together with the pointer 10.

[Operation] As described above, when the drive arm 26 rotates together with the pointer 10, the follower shaft 22 also rotates, and the rotation is converted into an electric value by the electric value converter 20 and transmitted through the transmission line 30.

[Remodeling of pre-designed device] Remove the front glass 18 of the pre-designed device, and attach the electric value converter 20, drive arm 26, guide 28, etc. to it (or separately prepared front glass). If it fits in the instrument, it can be modified for remote use.

In addition, if the size of the electric value converter 20 is made appropriate,
Even after the remodeling, there is no difficulty in visually observing the instructions on the instrument site.

[Advantage of Invention] (1) As described above, the electric value converter 2 is provided on the front glass 18.
0, follower shaft 22, drive arm 26 is attached, it is fitted into an existing instrument, and by mechanically connecting the tip of drive arm 26 to the tip of pointer 10, existing indicator instrument can be used as a remote instrument. Can be modified.

(2) Nothing needs to be done to the already designed device.

[Brief description of drawings]

 FIG. 1 is an exploded explanatory view of an embodiment of the present invention, and FIG. 2 is an explanatory view of a conventional technique. 10: Pointer, 12: Rotating axis 13: Mechanism part, 14: Scale plate 16: Outer box, 18: Front glass 20: Electric value converter, 22: Following axis 24: Following mechanism, 26: Drive arm 28: Guide, 30: Transmission line

Claims (2)

[Scope of utility model registration request] 1. A pointing instrument having a pointer 10, wherein a follow-up shaft 22 that rotates around the same central axis as the rotation axis of the pointer 10 is provided through the front glass 18 of the instrument, The drive arm 26 is fixed, and the tip of the drive arm 26 is mechanically connected to the tip of the pointer 10, and an electric value converter 20 for converting the rotation of the tracking shaft 22 into an electric value is provided. Indicating instrument characterized by being present. 2. An indicating instrument according to claim 1, wherein the electric value converter 20 is a potentiometer, and the follow-up shaft 22 is its rotating shaft.