JPS5839416Y2 - Instrument mechanism - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an indicating mechanism, and particularly to an instrument mechanism to which two meters can be attached.

FIG. 1 is an explanatory diagram of the configuration of an embodiment of the mechanism of the present invention, and here, a case where the present invention is applied to an indicating controller is illustrated.

In FIG. 1, 1 is an outer casing of the instrument, and 2 is an inner instrument frame. This inner instrument frame 2 is made up of a front case 21, upper and lower plates 22, 23, and a rear plate 24.

3 is an instrument mechanism provided within the internal device frame 2.

The structure of the instrument mechanism 3 is shown in FIGS. 2 to 4. In FIGS. 2 and 3, 4 is a frame.

The frame 4 is made of metal die-casting, for example, and the substrate portion 4
1, a mounting portion 42 at the tip thereof, and a U-shaped frame portion 43 surrounding a substrate portion 41.

The base plate 41 has a fan-shaped cutout 411, two large and small escape holes 412, 412 and 413, 413, and two adjacent holes.
Five sets of screw holes 414 each having two through-hole female screws,...
... is provided, and both sides are made almost symmetrically.

Further, the surfaces of the base plate part 41 and the mounting part 42 are provided to be slightly shifted from each other (l in FIG. 3), and a gap part 44 is formed between them.

Reference numeral 45 denotes a terminal section provided near the disconnection section 44, and is for leading the internal wiring of the meter mechanism 3 to the outside.

5 is a scale frame.

The scale frame 5 is constructed by combining left and right frames 51 and 52, both of which are made of milky white molded products, and a transparent cover 53 placed in front of these frames.

The inner circumferential surface of the cover 53 is sized to fit without any gap on the outer periphery of the front surface when the left and right frames 51 and 52 are combined.

When these are combined and fixed to the mounting portion 42, the inner arcuate surface 531 of the cover 53 and the left and right frames 51,
A slight arcuate gap g is formed between the arcuate surfaces 511 and 521 on the left and right edges of 52, and within the gap g is a scale plate 54 with scale lines and unit numbers formed on a transparent thin film from above. inserted.

Further, a side space s1 is formed between the left frame 51 and the right frame 52, and an arc-shaped front space s2 is formed between the left frame 51 and the cover 53, and these rain spaces s1 and 52 are divided into the following two spaces. This is the space in which the pointer arm and needle tip of the meter move.

6 is a first meter, and 7 is a second meter.

The meter 6 includes a movable part 61 including a pointer 611, a moving coil 612, etc., a holding part 62 for holding the movable part 61, and an excitation part 63 including a permanent magnet 631, a core 632, etc.

It should be noted that since the second meter 7 has the same configuration as the first meter 6 except for the pointer 711, corresponding numbers will be assigned and a description thereof will be omitted.

64 and 74 are insulating base plates of the same shape, and 641 and 741 are relay terminals provided on these plywood boards 64 and 74.

Reference numerals 46 and 47 denote fixing pieces formed at the top and bottom of the frame 4, by which the instrument mechanism 3 is attached to the internal device frame 2, and the scale frame 5 is exposed to the front case 21.

81 and 82 are shield cases having zero adjustments 811 and 821, and 91 in FIG. 1 is an alarm mechanism, 92 is a setting mechanism, and 9
3 is a regulator.

In order to assemble the device having the above-mentioned configuration, the movable parts 61 and 71 must be assembled in advance.
, the holding parts 62, 72, the excitation parts 63, 73, etc. are attached to the insulating base plate 64, 74, and the first meter 6 and the second meter 1, which are identical except for the pointers 611 and 711, are mounted on both sides of the base plate part 41 in the frame 4. Fasten back to back.

In this case, the insulating base plates 64 and 74 are each fixed to the substrate section 41 using one of a pair of female screws in five sets of screw holes 414 provided in the substrate section 41.

Also, the holding portions 62, 72 and the excitation portions 63 of both meters 7°7.
The screw part for fixing 73 is the escape hole 412, 412 and 42
3°413, and the metal parts of both meters can be disconnected from each other to completely electrically isolate them.

The pointer 711 of the meter 7 is connected to the base plate part 41 through the dysphagia part 44.
is pulled out to the opposite side, approaches the other pointer 611, and is lined up with this pointer 611 in front of the frame 4.

Next, as shown in FIG. 4, attach the left frame 5 to the mounting part 41 from the left side.
1 with screws 512 and 513, and insert the right frame 52 from the right side.
Fix with screws 522, 523, and then remove cover 5 from the front.
3 and assemble them together with screws 532 and 533.

By incorporating the scale frame 5, the arm 61 of the pointer 61.71
The tip of 1°711 and the needle tips 612, 712 are in the side space s1
and fits into the front space s2.

Then, the scale plate 54 is inserted into the gap g, and the relay terminal 641.
741 to perform internal wiring, lead this internal wiring to the outside from the terminal 45, and then connect the shield cases 81 and 82.
Attach.

The instrument mechanism 3 assembled in this way has a fixed piece 46.
47 to be fixed to the internal instrument frame of the instrument.

In addition to the above-mentioned instrument mechanism 3, the indicating controller shown in FIG. A 2 meter T pointer 711 serves as a measurement pointer.

In the above-described embodiment, the substrate portion 41 and the mounting portion 42 have parallel surfaces, but they may be on the same plane, and in short, may be substantially plate-shaped.

In addition, a side space s1 is provided on one side of the scale frame 5.
Although the case where the two pointers 611, 711 are arranged on one side of the scale plate 54 is illustrated, it is also possible to provide side spaces on both sides of the scale frame 5 so that the two pointers 611, 711 face each other from both sides of the scale plate 54. It can also be configured.

Normally, the meter used to indicate the main measurement values of this type of indicating instrument requires a scale with a length of about 100 mm or more; if the scale is smaller than that, it will be difficult to see the indication on the pointer, and the meter will not work properly. This causes inconvenience in monitoring.

On the other hand, if only the pointer arm of the meter is lengthened, the instrument part can be made smaller and the scale can be made larger, but on the other hand, the moment of inertia becomes large compared to the output torque of the movable part, and the response decreases, making it impractical.

For this reason, meters with long pointer arms and large scales generally
Depending on these sizes, the overall configuration also becomes large.

Therefore, it is a two-pointer meter (temporarily called this when two similar meters are placed in one meter).
When designing a system, simply arranging two meters would not only result in a large and complex configuration, but also a wide width, making it suitable for vertically long instruments for high-density instrumentation as shown in Figure 1. I can't.

However, the present invention has a frame that includes a mounting part, a missing part, and a board part surrounded by a frame part, a scale plate made up of left and right frames and a transparent cover, and two meters of the same structure that are attached to both sides of the board part. The instrumentation mechanism was composed of:

As a result, by simply inserting a predetermined scale plate into the scale plate, it is possible to realize a two-pointer type independent instrument mechanism in which two values, for example, measurement and setting, can be indicated on one scale plate.

In addition, a two-pointer type instrument mechanism is constructed, which is small and thin despite its large scale.

Furthermore, the constituent elements are a combination of the above-mentioned frame and scale frame, and two instruments are placed on both sides of the board, so the structure is simple and suitable for mass production.

In addition, according to the product implementing the present invention, it is a two-pointer type instrument mechanism with a pointer arm of 1501 m, a pointer deflection angle of about 38°, a scale length of Zoom, and a width L of the instrument part (Fig. 3) of only 65 mm or less. was realized.

Therefore, the present invention is particularly suitable for application to a two-pointer type indicating controller.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the configuration of an application example of the mechanism of the present invention, Fig. 2 is an explanatory diagram of the instrument mechanism in Fig. 1, Fig. 3 is a cross-sectional view of Fig. 2, and Fig. 4 is an explanatory diagram of the configuration of the frame. , FIG. 5 is an explanatory diagram of the scale frame. 4... Frame, 41... Board part, 4
2...Mounting part, 5...Scale frame, 6
,7...meter,611.711...
Pointer, s2... Arc-shaped space.

Claims (1)

[Scope of utility model registration request] A frame with a mounting part at the tip, a non-drinking part in the middle, a base surrounded by a U-shaped frame part, and a base part made almost symmetrically on both sides, the left and right frames, and a transparent cover. a scale frame that forms an arcuate gap g into which a scale plate is inserted inside the transparent cover and movement spaces s1 and s2 for the pointer arm and the needle tip when these are attached to the mounting portion;
An instrument comprising: two meters having substantially the same structure; the excitation parts of the two meters are fixed to both sides of the base plate, and the tips of the needles of the two meters are arranged in the arcuate space g. mechanism.