WO1982002455A1

WO1982002455A1 - Potentiometer

Info

Publication number: WO1982002455A1
Application number: PCT/JP1981/000415
Authority: WO
Inventors: Electric Ind Co Ltd Matsushita
Original assignee: Yamashita Yoshito; Yamamoto Yuichi; Ohta Kazuji; Nakamura Noriaki
Priority date: 1981-01-08
Filing date: 1981-12-25
Publication date: 1982-07-22
Also published as: JPS57115208U

Abstract

Potentiometer in which the contact (15) of a sliding brush (16) attached to a mounting plate (14) is pressed against a resistor member (9) and a collector member (10) mounted on a resistor-base plate (8) so as to obtain an electrical output from the contact. One of the resistor member (8) and the sliding brush-mounting plate (14) has a means For its position to be shifted independently by an external operation such that the relative position between the resistor-base plate (8) and the contact (15) of the sliding brush mounting plate (14) is externally adjustable. Thus, in the state wherein a rotary driving shaft (7) or a linear driving lever is so controlled as not to shift to any arbitrary position, it is possible to externally adjust the initial electrical output of the potentiometer to a predetermined value quickly, easily, and accurately.

Description

Description Title of invention

Bottom meter

Technical field

The present invention relates to a potentiometer that includes a resistor substrate and a sliding brush mounting plate on which a sliding brush having a contact pressed against the resistor substrate is mounted to obtain an arbitrary electric output. O

Background art

Conventionally, in potentiometers used for position and angle detection, when the main body is fixed and the rotary drive shaft or linear drive lever is driven differently from the measured object, the In general, it is necessary to adjust the initial electrical output of the potentiometer to a predetermined value (index 'point') in order to cancel the mechanical error accumulated in the However, the conventional adjustment means had various difficulties as described below.

The example in FIG. 1 is a case where the rotation shaft 2 of the potentiometer is set and stopped at the mechanical initial position, and the rotation of the fixed position of the main body ³ is adjusted to match the electrical output. In FIG, ¹ is違結unit, ⁴ · 4 a main body fixing screws, 5 · 5 a is long hole for screws, arrows are tone螯direction.

Examples of the second view is fixed to the main body 3 of Boten tio menu over data, after ₀ setscrew ⁶ is a case of adjusting the rotational drive 2 times ¾ adjustment is for the shaft ² mouth Tsukusuru .

In any case, time and labor are required, and the final fixing with the set screw may cause the II position to move. did.

Disclosure of Kishi

Therefore, according to the present invention, a resistive substrate and a sliding brush in which contacts are pressed against the resistor and the collector on the resistive substrate are attached.

5 A sliding brush mounting plate is provided, and one of the resistor substrate and the automatic brush mounting plate has a means for independently moving its position from the outside. The relative positional relationship between the contact point of the moving brush mounting plate and the contact point can be adjusted externally. 3) By adjusting the structure, the main body is fixed, and the rotary drive tab or linear opening lever is moved to any position l O. Even in a state where the power is stopped, the initial electrical output of the potentiometer can be adjusted to a predetermined value externally in a short time, easily and accurately. It is intended to provide the data.

Brief description of drawings

15 Fig. 1 and Fig. 2 are each a configuration diagram showing a conventional example of electric output adjustment of a potentiometer, and Fig. ³ is a vertical diagram showing an embodiment of a potentiometer according to the present invention. New view, Fig. 4 is a top view showing the potentiometer with the sliding brush, sliding brush mounting plate, cover, etc. removed, and Fig. 5 is the turning of the potentiometer. FIG. 6 is an explanatory view showing the adjustment units in groups, and FIG. 6 is a vertical sectional view of the same. -Best mode for carrying out the invention

Figures 3, 4, 5, and 6 show examples of rotary drive potentiometers. First, Figure 3 shows a new view, and Figure 4 shows a slide. It is a top view in the state where the moving brush etc. were removed. 5 Center the rotation center on the rotating plate 7 with the tooth shape 7a Eventually, the resistor substrate S is fixed, and the surface of the resistor substrate S is provided with a horseshoe-shaped resistor ^ ⁹ and a collector ¹ o. in the sliding friction plate ^{1 1} and held by pressure contact, the teeth 7 a is connected to the fine adjustment gear ^{1 2,} attachment fitted with the rotary plate Ryo Ke - to scan ^{1 3} holding the Hasatsuki ^{1 2} ing.

1 4 the resistor substrate S on the resistor ⁹ and co Lek data - parts made of contact points 1 5 attached to Suridosuriko 1 6 is pressed against the ¹ O Suridosuriko ¾ with Itadea] ?, It is directly connected to a rotary drive軲¹ 7. ¹ S The Coil Rupane for the rotary drive shaft 1 7 is a scan flop-ring back, ¹ 9 the mounting Ke - a body fixing hole formed in the scan 1 3. The output of the resistor 9 provided in the resistor antibodies substrate ^'8, also through the crimp terminal 2 0 and co Rectifiers motor part ¹ 〇 are drawn out to the outside rie de ^{2 1} o

Contact, the fine adjustment teeth Bogo ¹ 2 Hippo - exposed is held to ^{2 second} external driver on his head portion - - through 2 second adjusting hole ²² a This cover is subjected to groove 1 2 a Therefore, cover - can be rotated from ^{2 2} external.

Figure 5, ₀ 5 shows a conceptual diagram of a configuration of rotating the sixth by the fact rotate the fine adjustment teeth grass 1 2 in FIG] resistor substrate S is an exploded explanatory view of the rotation regulating portion, Fig. 6 is the S ^ view of the same part after ^

The part of the end face of the rotating plate 7 "A and ¾ the urchin g type 7 a by the above-described tear] 5, is fine adjustment齒草1 2 and違結because, in figure Gear ¹ 2 When rotated in the direction a, the rotating plate rotates around the portion C in the direction b in the figure, to which the resistor substrate 8 is attached. Therefore, by turning the fine adjustment bacteria ² in the a direction fc, the resistor substrate 8 can be turned in the b direction around the C portion. State this is to turn the Kai耘drive shaft 1 7 are in the normal use of potentiometers data, electrical equivalent to 5 Suruwachi the value of the output to be adjusted, it was restrained with Suridosuriko ¹ 6 in, it can be changed by rotation of the fine adjustment齒蕈1 2 between the contacts 1 5 of Suridosuriko ^{1 6}稆対position in the rotational direction of the resistor substrate 8 from ,, outside, electrical output This makes it possible to make adjustments.

In this case, the problem is that once the electrical output is adjusted to a predetermined value, the adjustment position does not fluctuate due to vibration or impact, and long-term stable convenience can be realized. The point is that you have to go long. The sliding friction plates 1 ^1, there is is provided for this purpose, E is against the portion of Β the rotary plate § As shown in FIG. 6, the mounting Ke - are secured with scan 1 3 .. As described above, the rotating plate is finely adjusted by the gear 15 for fine adjustment.] When rotated, the Β and D parts slide on the mounting case 13 by friction, and after adjustment, the friction force Due to D movement is restricted. Here, if the degree of pressure contact of the sliding friction plate 11 is set to an appropriate value, fine movement of the rotating plate 7 due to vibration etc. after adjustment will be with everyone! ), Allows long-term stable use even if left as it is after adjustment.

0 By the way, the relative position adjustment between the resistance substrate S and the contact 15 of the slider 16 is not limited to the means for moving the resistance substrate S as in the above example.まで Needless to say, it can be realized by moving the brush mounting plate 4. That is, fixing a Suridosuriko mounting plate ¹ 4 5 At the same times耘中heart on the times耘板§ that provided teeth Ryo a, to ¾ forming a fine adjustment S wheel 1 2 This lightning type 7 a , this Hold the teeth 1 and 2 in the mounting case 13 and fine-tune the above ^ Arrange the gear ¹² so that it can be rotated from the outside, and rotate the sliding brush 1 e from the outside through the teeth ¹² What is necessary is just to have an adjustable configuration. In this case, it is obvious that the resistor substrate s is held on the mounting case ¹³ .

Further, in the above embodiment, the rotary potentiometer has been described, but the present invention is also applicable to a linear I dynamic potentiometer. In this case, a resistor base plate or a sliding brush mounting plate is fixed on a movable plate that is held movably in a straight line on the mounting case and has a tooth profile on the end face, and the fine adjustment gear is connected to the tooth profile, Hold the fine adjustment teeth of the bracket in the mounting case, arrange this gear so that it can be rotated from the outside, and adjust the resistance substrate or the sliding brush mounting plate from outside through this tooth. Any configuration may be used. At this time, the sliding thick plate may be pressed against and held by the resistor substrate or the slider mounting plate so that the braking force acts in the moving direction of the slider mounting plate.

Industrial applicability

As described above, according to the potentiometer of the present invention, even when the main body is fixed and the rotary drive shaft or the linear motion lever is stopped so as not to move to an arbitrary position, the potentiometer can be used. The initial electric output of the monitor can be easily and accurately set to a predetermined value from the outside in a short time.

Claims

I.—Scope of Claim

1. A resistor brush with a resistor and a part of the collector provided on the top surface, and a sliding brush with a contact between the resistor and the collector on the resistor and the board. Potentiometer that attaches to the mounting plate

In this case, one of the resistor substrate and the sliding brush mounting plate has means capable of moving its position independently from the outside, and a contact point between the resistor substrate and the sliding brush mounting plate is provided. A potentiometer ο characterized in that the relative positional relationship with the outside is adjustable.

l O

. 2 Contact to claim ^1, mounted Ke -. To rotatably hold on scan on a rotating plate which has been subjected to teeth on the end face, the center of rotation resistor substrate fixed to same, the tooth The fine adjustment gear is connected to the outside, and the fine adjustment gear is arranged so as to be rotatable from the outside.

1 5 Possible A potentiometer that features a configuration.

3. In claim ¹ , the sliding brush mounting plate is fixed on a rotating plate that is rotatably held on the mounting case and has a tooth profile on the end face, with the same rotation center, The fine adjustment gear is connected to the motor and the fine adjustment gear is arranged so that it can be rotated from outside 0. Then, the sliding brush mounting plate is externally tipped through the adjustment tooth. A potentiometer that features a possible configuration.

4. In claim 1, the resistance plate is fixed on a movable plate which is held in a straight line on the mounting case and has a tooth profile on the end surface. The fine adjustment 5 ^ Aisho is arranged so that it can be cultivated from the outside, and

O PI W

A potentiometer characterized in that the resistor substrate can be moved and adjusted from the outside via a.

5. In Claim ¹ , the sliding brush mounting plate is mounted on the moving plate which is held so as to be able to move directly on the mounting case and has a toothed surface on the end surface.

(5) The fine adjustment gear is fixed to the tooth profile, and the fine adjustment gear is arranged so that the fine adjustment gear can be cultivated from the outside. The sliding brush mounting plate is connected via the fine adjustment gear. A potentiometer that features a configuration that can be queried from outside.

6. According to claim ^{2, the} lO sliding friction plate is pressed against and held to the movement-adjustable antibody substrate, and is arranged so that a braking force acts in the moving direction of the resistor substrate. A potentiometer that recommends that the position is easily changed by vibration, crushing, etc.

In claim 3, the sliding friction plate is pressed against and held on the five sliding brush mounting plates that can be moved and arranged so that a braking force acts in the moving direction of the sliding brush ring attached plate. A potentiometer that is designed to easily change its position due to vibration, impact, etc. after position adjustment.

8. According to claim 4, the sliding adjustable plate is pressed against and held by the movement-adjustable resistor substrate, and measured so that a braking force acts in the moving direction of the resistor substrate, and after the position is adjusted. A potentiometer that recommends that the position is easily changed by vibration of the street, street hit, etc. o

9. In Claim 5, a sliding friction plate is held in pressure contact with the movable brush mount 5 可能 which is adjustable in movement, and the sliding plate ¾ is moved.

I It is arranged so that a braking force acts in the direction of movement, and the position is easily changed by vibration, impact, etc. after position adjustment.

O PI