Knob switch for vehicle

Abstract

Disclosed is an in-vehicle knob switch having high operability and a small size. The disclosed in-vehicle knob switch includes: a tubular housing (1); a circuit board (3) that is disposed inside the tubular housing (1) and has a push switch (12) and a slide switch (21) mounted on both surfaces thereof; a holder (2) that fixes the circuit board (3); and a rotating body (4) that is formed by integrating an operating ring portion (5) with a tubular driving portion (6) and is rotatablely fitted to the holder (2). A spiral hole (6b) engaged with a slider (15) of the slide switch (21) is formed in a circumferential wall of a tubular driving portion (6), and a cutout portion (6c) into which an operating key (7) is loosely inserted is provided in the circumferential wall at a position that is substantially opposite to the spiral hole (6b). The cutout portion (6c) is of such a size that the tubular driving portion (6) does not interfere with the operating key (7) within the rotation range of the rotating body (4). The slider (15) is driven by the tubular driving portion (6) to reciprocate.

Description

technical field [0001] The present invention relates to a knob switch for automobiles called a lever switch or the like having a swingable cylindrical case, and more particularly relates to an operation key for pushing operation and a rotary operation key provided on the outer peripheral surface of the case. Use the knob switch for the car that operates the ring part. Background technique [0002] An automotive rotary switch called a lever switch is generally provided near the steering column of an automobile to control the operation of wipers or headlights. This automotive rotary switch includes a cylindrical housing swingably supported on the side of the steering column, a circuit board fixed to a bracket inside the housing, and a rotary switch that has an operating ring portion and is rotatably mounted on the outer peripheral surface of the housing. body, and the operation keys exposed on the outer peripheral surface of the housing, and the electronic components such as ...

AI Technical Summary

Problems solved by technology

However, if an arrangement space for the cylindrical drive unit is ensured between the operation ring portion and the operation key, the operation ring portion and the operation key will be arranged so as to be largely displaced in the longitudinal direction of the circuit board.

Therefore, when the operator tries to continuously operate these operation rings and operation keys, there is a problem that the moving distance of the finger becomes large and the operability is reduced.

Moreover, when the arrangement space of the cylindrical drive part is ensured between the operation ring part and the operation key, each installation area of ​​the electrical components for rotation detection and the push button switch will appear on both sides of the circuit board in the longitudinal direction of the circuit board. Misalignment, so there is also the problem that the circuit board is enlarged and the compactness of the housing is easily hindered

That is, it is sometimes necessary to shorten the size or diameter of the cylindrical case due to design restrictions, etc. However, if the circuit board inside the case cannot be miniaturized due to the installation space, such a compact case cannot be realized

In addition, these problems have not been solved in the above-mentioned existing examples

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