JPH0729498Y2 - Electric indicating instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an electric indicator instrument, and more particularly to improvement of a needle stop mechanism thereof.

<Prior Art> FIG. 2 is a configuration diagram of an example of an electric indicator having a conventional needle stop mechanism. In the figure, 10 is an internal unit of an instrument consisting of an exciting unit 11 and a movable unit 13 having a pointer 12, 20 is a base, and 30 is a cover. Reference numeral 14 is a mounting plate for mounting the inner unit 10 on the base 20, and is press-fitted into the yoke 15 forming the exciting portion 11.

40 is a needle stop mechanism. The specific structure of this needle stop mechanism is shown in FIG. In FIG. 3, reference numeral 41 is a U-shaped substrate made of phosphor bronze, and concave screw mounting portions 42, 43 in the same direction are formed at both leg ends thereof. Reference numerals 44 and 45 are arms that integrally extend from the inside of the substrate 10, and insulating tubes 46 and 47 are attached to the tips of the arms by adhesion. The arm 44 and the insulating tube 46 and the arm 45 and the insulating tube 47 form a needle stopper, respectively.

As shown in FIG. 2, the integral type needle stop mechanism 40 is
When mounting the internal unit 10 of the instrument on the base 20,
Screws 5 together with the mounting plate 13 attached to the internal unit 10 using 2,43
1,52 (indicated by a dotted line in FIG. 2). In the needle stop mechanism 40 of this configuration,
The movable range of the movable portion 13 is restricted by the pointer 12 coming into contact with 46 and 47.

The needle stopper mechanism 40 having such a structure has been conventionally used as an integrated type in which both needle stoppers are integrally formed, but the concave screw mounting portions 42 and 43 provided on the U-shaped substrate 40 have the same direction. Therefore, when the screws 51 and 52 are tightened as shown in FIG. 3, a frictional force between the screws and the substrate 41 causes a force F to be applied to one leg of the substrate 41. The child attachment portion 42 may come off the screw 51. Therefore, it is necessary to perform the screw tightening work while pressing the substrate 41 from above. In order to prevent this, the screw should be tightened little by little over several times, but it is attentive and inefficient.

<Problems to be Solved by the Invention> The present invention has been made to solve the above problems, and an object thereof is to provide an electric indicator instrument having a needle stopper mechanism that can be easily mounted. is there.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention provides concave screw mounting portions in directions different from each other by 90 degrees at the tips of both legs of a U-shaped substrate that constitutes a needle stopping mechanism. It is a thing. Hereinafter, examples will be described in detail.

<Embodiment> FIG. 1 is a block diagram of an embodiment of a needle stopping mechanism according to the present invention. In the figure, 60 indicates the needle stop mechanism. In 60, 61 is a U-shaped substrate made of phosphor bronze similar to the symbol 41 described in FIG. 3, and its both leg ends have concave screw mounting portions 62, 63 in directions different from each other by 90 degrees. Is provided. Reference numerals 64 and 65 denote arms extending integrally from the inside of the substrate 10, and insulating tubes 66 and 67 are attached to the tips of the arms by adhesion. As shown in FIG. 2, such an integral type needle stop mechanism 60 is mounted with the screw (51) 52 together with the inner unit 10 using the mounting plate 14 when mounting the inner unit 10 of the instrument on the base 20. To be

In this way, the needle stop mechanism 60 is a joint tightening type, and
When attaching the to the base 20, the needle stop mechanism 60 is also inserted at the same time. Therefore, the screws 51 and 52 are already temporarily tightened and the mounting plate 13
Is attached to.

Here, when the screw 51 (shown by a dotted line) on the side of the screw mounting portion 62 shown in FIG. 1 is tightened, a rotational force F acts on the screw mounting portion 60 as described with reference to FIG. Although it is a force to remove the leg portion, rotation does not occur because the concave screw attachment portion 62 has the jaw 62 '. Further, since the force of F ′ acting in the lateral direction in this needle stopping mechanism is restricted by the screw 52, the screw mounting portion 62 can be securely tightened. still,
Since the screw attachment portion 63 works in the direction in which the needle stop mechanism 60 is wound, there is no problem.

<Effects of the Present Invention> As described above, in the present invention, the tips of the legs of the U-shaped base plate constituting the needle fixing mechanism that is attached to the base by tightening together with the inner part of the instrument differ from each other by 90 degrees. Since the unidirectional concave screw mounting portion is provided, it is possible to obtain an electric indicating instrument having a needle stop mechanism that can be fastened together with the instrument internal unit to the base without special care.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a needle stopping mechanism according to the present invention,
FIG. 2 is a block diagram of an example of an electric indicator using the needle stop mechanism of FIG. 1, and FIG. 3 is a block diagram of a conventional example. 60: Needle stop mechanism, 61: U-shaped substrate, 62, 63: Recessed screw mounting part, 64, 65: Arm, 66, 67: Insulation tube.

Claims (1)

[Scope of utility model registration request] 1. An electric machine having a needle-clamping mechanism in which a U-shaped substrate is provided with an insulating tube attached to the tips of a pair of arms extending from the substrate and the needle is attached to the base by joint tightening with an internal unit of the instrument and a screw. In the indicating instrument, at the tips of both legs of the board,
An electric indicator instrument having a needle stop mechanism provided with a concave screw mounting portion into which the screw is inserted in directions different by 90 degrees.