JPH04111705U - rotary variable resistor - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to provide a click feeling to the user without using special parts, thereby reducing costs. [Configuration] A rotating shaft 11 for operation that is rotatably supported;
A rotating body 14 is attached to the rotating shaft 11 and has a conductive brush 12 and an elastically supported protrusion 13 facing in the same direction. A resistor 15 is provided to slide on the brush 12 along the trajectory, and one or more resistors are provided to engage with the protrusion 13 along the trajectory of the protrusion 13 due to the rotation of the rotating body 14. and a substrate 16 integrally provided with an engagement groove 17 .

Description

[Detailed explanation of the idea]

0001

[Purpose of invention]

0002

[Industrial application field]

The present invention is a rotary variable resistor used for the volume of audio equipment, etc. Regarding anti-vessels.

0003

[Conventional technology]

In general, in audio equipment, etc., the left and right volume controls, etc. Normally, a rotary variable resistor is used, which is adjusted to the center. With such a rotary variable resistor, it is necessary to make it clear to the user who is making adjustments that it is located at the center. A mechanism that provides a click feeling at the center position to ensure accurate notification. Many have the following.

0004 Figures 6 and 7 show a conventional device equipped with a mechanism that provides such a click feeling. 1 shows an exploded view and an assembled view of a rotary variable resistor, respectively. In these figures 1, numeral 1 indicates a rotatably supported rotating shaft for operation. This rotating shaft 1 A conductive brush 2 is attached to one end of the holder. Also, facing this brush 2 A substrate 4 on which a resistor 3 is formed is arranged at a position where the brush 2 and the resistor 3 are connected. are in sliding contact.

[0005] Further, the rotary shaft 1 includes a washer 7 having a notch 6 fixed to the case 5 side. A protrusion 8 is inserted between the washer 7 and the brush 2. A leaf spring 9 is inserted.

[0006] When the rotating shaft 1 is rotated, the leaf spring 9 rotates integrally and is brought to the center position. When the leaf spring 9 is turned, the protrusion 8 of the leaf spring 9 engages with the notch 6 of the washer 7, causing the user to click. It gives a cool feeling.

[0007] However, a rotary variable resistor with this structure does not give the user a clicking sensation. Since a dedicated leaf spring 9 and washer 7 are used to provide this power, there are many parts. In addition, it took time and effort to assemble, which caused problems in terms of cost.

[0008]

[Problem that the idea aims to solve]

Conventional rotary variable with a mechanism that gives a click feeling like this Resistors require special parts, so they have a large number of parts and are time-consuming to assemble. This caused problems in terms of cost.

[0009] Therefore, the present invention provides a click feeling to the user without using special parts. A rotary variable resistor can be used to reduce costs. The purpose is to provide.

0010

[Structure of the idea]

[0011]

[Means to solve the problem]

The present invention consists of a rotatably supported rotating shaft for operation and a device attached to the rotating shaft. The conductive brush and the elastically supported protrusion are aligned in the same direction. A rotating body is provided, and the brush is rotated along the trajectory of the brush by the rotation of the rotating body. a resistor provided to slide on the brush; and the protrusion caused by the rotation of the rotating body. one or more engagement grooves provided to engage with this protrusion along the trajectory of the part; and a substrate integrally provided.

0012

[Effect]

In this invention, the protrusion to give a click feeling is integrated with the brush, In addition, since the engagement groove is integrated with the resistor, it can be used without using special parts. It is possible to give a click feeling to the image, and it is possible to reduce costs.

[0013]

【Example】

Hereinafter, details of embodiments of the present invention will be explained based on the drawings.

[0014] FIG. 1 is an assembly diagram of a rotary variable resistor according to an embodiment of the present invention.

[0015] In the figure, reference numeral 11 indicates a rotatably supported rotating shaft for operation. child A conductive brush 12 and a protrusion 13 are integrally provided at one end of the rotating shaft 11. A rotating body 14 is attached thereto. Moreover, at a position facing this rotating body 14, , a substrate 16 on which a resistor 15 is formed is disposed.

[0016] As shown in FIG. 2, the rotating body 14 has a brush 12 arranged facing the substrate 16. Similarly, a protrusion 13 is arranged on the outer periphery of the rotating body 14, facing the substrate 16. . The base of the protrusion 13 is made of a spring member, for example, so that the protrusion 13 is elastically supported. It's like being held.

[0017] On the substrate 16, as shown in FIG. Resistors 15 are formed circumferentially along the path. This resistor 15 is a resistance on the inner circumference. It is divided into a resistor 15a on the inner periphery and a resistor 15b on the outer periphery. One end is connected to the body 15b and the other end is open. In addition, the resistor on the board 16 A predetermined position along the trajectory of the protrusion 13 due to the rotation of the rotating body 14 outside the antibody 15 is provided with an engagement groove 17 that can engage with the protrusion 13.

[0018] When the rotating shaft 11 is rotated, the rotating body 14 also rotates, and the brush 12 resists resistance. It makes sliding contact along the body 15, and its resistance value is varied. At that time, the protrusion 13 is inserted into the engagement groove 17. When it reaches the position (for example, the center position), it engages with the engagement groove 17 and operates the rotating shaft 11. This gives the user a click feeling.

[0019] In this way, in the rotary variable resistor of this embodiment, the protrusion 13 is brushed onto the rotating body 14. By simply forming the engagement groove 17 on the substrate 16, In order to give a click feeling to the user, No special parts are required. This will reduce the number of parts and manufacturing man-hours. This reduces manufacturing costs.

[0020] Note that the present invention is not limited to this embodiment.

[0021] For example, as shown in FIG. It may be provided above.

[0022] In addition, as shown in FIG. 5, an engagement groove 17 is formed inside the resistor 15, and The position of the brush 12 may be changed so as to do so.

[0023]

[Effect of the idea]

As explained above, according to the rotary variable resistor of the present invention, special parts are used. It is possible to give the user a click feeling without having to worry about the number of parts and manufacturing. It is possible to reduce the number of man-hours and reduce manufacturing costs.

[Brief explanation of drawings]

FIG. 1 is an assembly diagram of a rotary variable resistor according to an embodiment of the present invention.

2 is a bottom view of the rotating body shown in FIG. 1. FIG.

FIG. 3 is a top view of the substrate shown in FIG. 1;

FIG. 4 is a diagram showing another embodiment of the present invention.

FIG. 5 is a diagram showing another embodiment of the present invention.

FIG. 6 is an exploded view of a conventional rotary variable resistor.

FIG. 7 is an assembly diagram of a conventional rotary variable resistor.

[Explanation of symbols]

11...Rotation axis 12...Brush 13...Protrusion 14...Rotating body 15...Resistor 16...Substrate 17...Engagement groove

Claims (1)

[Scope of utility model registration request] [Claim 1] A rotatably supported operating rotating shaft, a conductive brush attached to the rotating shaft, and an elastically supported protrusion are integrally provided facing in the same direction. A rotating body, a resistor provided to slide on the brush along the trajectory of the brush due to the rotation of the rotating body, and a resistor that engages with the protrusion along the trajectory of the protrusion due to the rotation of the rotating body. 1. A rotary variable resistor comprising: a substrate integrally provided with one or more engagement grooves provided so as to be engaged with each other.