JPH10287175A - Operating knob for slide switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operating knob for a slide switch, which is so improved as to be free from rattling of its operating knob by letting a switch main body be separated from its operating knob. SOLUTION: In order to let an interior lamp for a vehicle be operated so as to be turned on/off, an operating knob 14 for a slide switch where a contact is turned on/off by moving a slide member 12 provided for a switch main body, is so constituted that a leaf spring shaped portion 14b which resiliently abuts against the inner surface 13b of a case accepting the switch main body, and a portion 14a connected with the slide member, are integrally formed into one body. By this constitution, the leaf spring shaped portion resiliently abuts against the inner surface of the case, and the operating knob is thereby prevented from rattling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation knob for a slide switch, and more particularly to an operation knob for a slide switch suitable for a vehicle interior light.

[0002]

2. Description of the Related Art A room light installed on a ceiling of a vehicle compartment is generally provided with a three-position switch capable of selecting one of three states: always-off, only when a door is opened, and always-on (see FIG. 1). See Japanese Utility Model Publication No. 57-30209). It may be advantageous to use commercially available general-purpose parts for this switch rather than setting dedicated parts for each vehicle model, in order to reduce manufacturing costs. However, also in this case, the operation knob exposed in the vehicle interior is generally formed of a member different from the switch main body, and the design knob is generally differentiated.

[0003]

However, when a plurality of parts are combined, a production error or an assembly error between the parts is inevitable. Therefore, the switch body and the operation knob are formed as separate members as described above. This may lead to deterioration of the feel at the time of operation and generation of abnormal noise due to play between the switch main body and the operation knob, which may be a factor of lowering the commercial value.

[0004] The present invention has been devised in order to solve such disadvantages of the prior art. The main object of the present invention is to provide a structure in which, when the switch body and the operation knob are formed as separate members, the operation knob is formed. It is an object of the present invention to provide an operation knob for a slide switch which is improved so as not to cause a problem.

[0005]

According to the present invention, in order to achieve the above object, a slide member 1 provided on a switch main body 11 for turning on and off a vehicle interior light is provided.
The operation knob 14 for the slide switch for moving and disconnecting the contacts by moving the switch 2 is connected to the inner surface
The leaf spring-like portion 14b resiliently abutting on 3b and the portion 14a connected to the slide member are integrally formed of an elastic material. According to this, the leaf spring-like portion resiliently contacts the inner surface of the case, and the play of the operation knob is suppressed.

[0006]

Embodiments of the present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings.

FIGS. 1 and 2 show a vehicle interior light to which the present invention is applied. The interior light 1 is mounted on a ceiling R of a vehicle compartment, and includes a keyless entry light receiving unit 2 for remotely locking and unlocking a door, a coupler unit 3 for connecting a wire harness, and a switch for lighting a bulb. Portion 4 and valve housing portion 5 for housing and holding a valve
Are integrally provided in the lamp body 6 having a flat bottom box shape.

The bulb 7 is of a type in which electrodes 7b having a conical end are provided at both ends of a glass cylinder 7a receiving a filament, and protrudes from the bottom surface of the bulb accommodating section 5,
The two electrode portions 7b are held by a pair of contactors 9 connected to the printed wiring board 8. The open surface of the valve housing 5 is covered with a cover 10 that scatters light.

The contactor 9 is made of a wire made of a good conductor having high elasticity, and is engaged with the conical portions of the two electrodes 7b of the bulb 7 at ends 9a wound in a ring shape. The extension 9b extending from the ring-shaped end 9a is appropriately bent and extends along the back surface of the lamp body 6, and the switch 1
1 and the terminal pins 3a from the coupler section 3 are soldered to the printed wiring board 8 to which the terminals are soldered.

The switch 11 connected to the printed wiring board 8 is a general-purpose three-position slide switch, and an operation knob 12 provided on the switch body slides on an end of a cover 13 covering the printed wiring board 8. It is engaged with a slider 14 movably attached, and by sliding the slider 14 from the outside of the cover 13, as in the case of a known interior light, it is always off, only when the door is open, and always on. You can choose between two states.

The printed circuit board 8 includes a photodiode 15 for receiving an infrared signal emitted from a keyless entry transmitter and a discriminating circuit 1 for discriminating the signal.
6 are also connected.

As shown in FIGS. 3 and 4, a slider 14 which functions as an actual operation knob engages with an operation knob 12 originally provided in a switch body and an end of a cover 13. And a wing portion 14b protruding from the knob portion 14a to both left and right sides, and are integrally formed of a synthetic resin material rich in elasticity. And wing part 14
At both ends of b, projections 14c that are in contact with corresponding inner surfaces 13b of the cover 13 are formed. As a result, the wings 14b are formed such that the protrusions 14c at both ends thereof are
And exerts a function as a plate spring for applying a resilient pressing force to the operation knob 1 by the reaction force.
2 will be firmly bonded.

[0013]

As described above, according to the present invention, the operation knob does not rattle even when the general-purpose switch is used and only the operation knob is formed as a separate member. Not to mention no loss, no noise is generated. Therefore, a great effect can be achieved in improving the commercial value.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an interior light according to the present invention.

FIG. 2 is a partially cutaway bottom view of the interior light according to the present invention.

FIG. 3 is an enlarged sectional view of a main part of the present invention.

FIG. 4 is a front view, partially cut away, of an interior light according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Interior light 2 Light-receiving part 3 Coupler part 3a Terminal pin 4 Switch part 5 Valve accommodating part 6 Lighting body 7 Valve 7a Glass cylinder 7b Electrode 8 Printed wiring board 9 Contactor 9a Ring end 9b Extension part 10 Cover 11 Switch 12 Operation knob 13 Cover 13a Opening 13b Inner Surface 14 Slider 14a Knob 14b Wing 14c Projection 15 Photodiode 16 Discrimination Circuit

Claims (1)

[Claims] An operation knob for a slide switch for moving a slide member provided on a switch main body to interrupt a contact, wherein the leaf spring-like portion elastically abuts an inner surface of a case for receiving the switch main body. And an operation knob for a slide switch, wherein a part connected to the slide member is integrally formed of an elastic material.