JPH0224177Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention relates to an operating knob for a slide switch.

(b) Prior Art The slide switch shown in FIG. 1 is conventionally known as an operating knob for a slide switch for switching reception bands in a radio, for example.

In FIG. 1, reference numeral 1 denotes a knob made of synthetic resin, to which a spring plate 3 is fixed with screws 4, with a substrate (front panel) 2 in between. Curved portions 5, 5 are provided at both ends of this spring plate 3. Further, a U-shaped gripping portion 10 is provided at the center of the spring plate 3 for gripping an operating knob 9 of a slide switch 8 attached to a printed circuit board 7.

11 is the handle part of knob 1, 12 is the collar part, 13,1
3 and 14, 14 are small protrusions and cylindrical protrusions provided on the inner surface of the flange 12. The small protrusions 13, 13 are in contact with the outer surface 2'' of the front panel 2, and the cylindrical protrusions 14, 14 are in contact with the outer surface 2'' of the front panel 2. It is inserted into the guide hole 15 of the panel 2.

6, 6 are protrusions provided on the inner surface 2' of the front panel 2.

In FIG. 1, when the operating knob 1 is slid, the switch 8 is activated via the spring plate 3.
can be switched. At this time, spring plate 3
Due to the elasticity of the spring plate 3, the curved portions 5, 5 of the spring plate 3 move over the protruding portions 6, 6 of the front panel 2, resulting in a click operation.

In the operation knob having such a structure, by making the distance between the curved parts 5, 5 of the spring plate 3 and the small protrusions 13, 13 of the slide knob 1 smaller than the wall thickness of the front panel 2, the front and rear Prevents directional wobbling. Also, when the knob 1 is slid in the left and right direction, the curved portion 5 of the spring plate 3,
5 elastically abuts against the protrusions 6, 6 of the front panel 2, thereby absorbing backlash in the left and right direction. Furthermore, by appropriately selecting the outer diameter of the cylindrical protrusions 14, 14 of the knob 1 and the fitting dimensions with the guide holes 15, 15 of the front panel 2, vertical play can be suppressed to a level that does not hinder operation. I can do it.

(c) Problems with the conventional technology However, if the operating knob has this structure,
Not only is a spring plate 3 required in addition to the slide knob 1, but also screws for attaching the spring plate 3 are required. As a result, there were drawbacks such as a large number of parts and poor assembly workability.

(iv) Purpose of the invention In view of the above, the object of the invention is to obtain an operating knob for a slide switch that allows the slide switch to be operated smoothly without play without using a spring plate. be.

(E) Embodiment of the invention FIGS. 2 to 4 are diagrams showing an embodiment of the operating knob of the slide switch of the invention.

In FIGS. 2 to 4, reference numeral 16 denotes a knob made of synthetic resin having a handle portion 17 and a flange portion 18;
On the inner surface 18' side of 8, a gripping part 19 is formed at the center, protrusions 20, 20 are formed at both ends, and the gripping part 19
Elastic arm portions 21, 21 are formed between the projections 20, 20. One of the elastic arms 21, 21 is placed above the inner surface 18' of the flange 18, and the other is placed above the flange 18'.
8 are provided below the inner surface 18' of each. 2
Reference numerals 2 and 22 indicate protrusions having an arcuate cross section formed at the tips of the arm portions 21 and 21. Reference numeral 23 denotes a slide switch attached to the printed circuit board 24 of the main body of the aircraft, such as a slide switch for switching radio reception bands, 25
2 is an operating knob for the slide switch 23, 26 is a synthetic resin substrate (front panel), 27 is a guide hole for the operator 25 provided in the front panel 26, and 2
7'27'' are sliding guide holes provided on both sides of the operator guide hole 27, and 28 and 28 are the front panel 2.
a movement regulating protrusion formed on the outer surface 26″ of 6;
29, 29 is the inner surface 2 of the front panel 26
This is a moderating protrusion formed at 6'.

When incorporating the operating knob 16 shown in FIGS. 2 to 4 into the front panel 26, as shown in FIG.
Using the vertical elasticity of 1 and 21, the arm 2
1 and 21 are the sliding guide holes 2 of the front panel 26.
7', 27'', the upper vertical protrusions 22a provided at the ends of the arms 21, 21 are pushed down, and the lower vertical protrusions 22b are pushed upwards while entering. .And the arm parts 21, 21
The protrusions 22, 22 at the tips of the front panel 26
the inner surface 26'. At this time, through hole 2
The operation knob 25 of the slide switch 23 is gripped by the grip part 19 inserted through the slide switch 7 . Further, the protrusions 20, 20 of the operating knob 16 are brought into contact with the outer surface 26'' of the front panel 26.

In the operation knob of the slide switch attached to the front panel 26 in this way, the knob 16
When the switch 23 is switched by sliding in the left-right direction, the knob 25 of the slide switch 23 held by the grip portion 19 is operated, and the switch 23 is switched.

At this time, due to the elasticity of the arm parts 21, 21, the arm part 2
The protrusions 22 and 22 of 1 and 21 are the front panel 26
In order to move over the protrusions 29, 29 of
Click works.

Note that the distance between the protrusions 22, 22 at the tips of the arms 21, 21 and the protrusions 20, 20 is designed to be smaller than the wall thickness of the front panel 26, and the protrusions of the elastic arms 21, 21, which are elastic in the front and rear direction, are designed to be smaller than the thickness of the front panel 26. By pressing the inner surface 26' of the front panel 26 with the portions 22, 22, rattling in the front-rear direction is prevented. or,
When the knob 16 is slid left and right, the arm 2
The protrusions 22 and 22 of 1 and 21 are the front panel 26
By elastically abutting against the protrusions 29, 29, the backlash in the left and right direction is absorbed.

Further, due to the vertical elastic force of the arms 21, 21, the arms 21, 21 lightly press the end surfaces of the guide holes 27', 27'' to prevent vertical play.

In the embodiment shown in FIGS. 2 to 4, rattling is prevented by the elastic force of the elastic arms 21, 21 provided integrally with the operating knob 16, and the slide switch 2
3 can be switched smoothly. Moreover, the guide holes 27, 27', 27'' of the front panel 26 are
Since it is within the outer shape of the knob 16 and cannot be seen from the outside, it has a good appearance.

(f) Effect of the invention As described above, the operating knob of the slide switch according to the present invention has an arm part that contacts the inside surface of the board and a protrusion that contacts the outside surface of the board, which are integrated into the knob itself. Since the slide switch is provided with a spring plate, the slide switch can be operated smoothly without play, and the number of parts can be reduced to reduce costs and improve workability.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the operating knob of a conventional slide switch, and FIGS. 2 to 4 are diagrams showing an embodiment of the operating knob of the slide switch according to the present invention.
2 is a plan view, FIG. 3 is an exploded perspective view, and FIGS. 4A, 4B, and 4C are sectional views showing the assembly procedure. 16...Takako, 17...Handle part, 18...Brim part, 19...Gripping part, 20...Protrusion, 21...Arm part, 22...Tip protrusion, 26...Base board (front panel ).

Claims (1)

[Scope of utility model registration request] A slide switch 23 fixed to the device main body side 24 and equipped with an operator 25, and an operator guide hole provided in front of the slide switch 23 and corresponding to the movement range of the operator 25 of the slide switch. 27 and sliding guide holes 27', 2 provided independently or in communication with each other on both sides of the guide hole.
The operator 25 of the slide switch is gripped through a base plate 26 having a 7'', a handle part 17, a collar part 18 provided on both sides of the handle part, and an operator guide hole 27 provided in the base plate 26. a gripping part 19, protrusions 20, 20 provided on the inner surface of the flange part 18 and abutting the outer surface 26'' of the substrate 26, and a tip that is inserted into the sliding guide holes 27', 27'' of the substrate 26. A synthetic resin operating knob is provided integrally with elastic arms 21, 21 extending long in the sliding direction so that the protrusions 22, 22 contact the inner surface 26' of the base plate 26, A slide switch operating knob is elastically and slidably attached to the base plate 26.