JPS5838572Y2 - sliding variable resistor - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a click mechanism for a sliding variable resistor.

Conventionally, the click mechanism in sliding variable resistors is
As shown in the first figure, a hole 7h is provided in the side of the slider holder 7 housed in the case 2, a coil spring 11 and a ball 10 are loaded into the hole, and the ball 10 is attached to the side wall of the case 2. It was common to engage and disengage a provided hole 2b (or recess) to transmit a moderation feel to the operator.

In addition, 1 has a resistor 3 and a conductor 4 arranged side by side on its upper surface,
An insulating substrate is fixed to the case 2, 5 and 6 are terminals, 8 is a slider, 2a is a long groove formed along the central longitudinal direction of the case 2, and 9' is a leaf spring.

However, such a sliding type variable resistor has a spring 11.
This has the drawback that it requires a ball 10 and the work to assemble it is complicated.

The present invention eliminates the drawbacks of the conventional example described above, and will be explained in detail below with reference to FIG. A slider 8 is fixed to the lower surface 7b (see Fig. 3), and a lever 7f is integrally protruded from the center of the upper surface 7a, and on both sides thereof a lever 7f, which will be described later, is formed. A pair of □ protrusions 7e for clipping the leaf spring 9 are formed.

Furthermore, a cutout recess 7g extending from the upper surface 7a to the lower surface 7b is provided on one side of the slider holder I, and the upper surface 7a has a recess for a mounting screw (not shown) that is screwed into the case 2. recess 7 for
d is the setting.

Reference numeral 9 denotes a leaf spring made of an elastic metal plate, and a square hole 9c is bored in the center of its base 9b, into which the lever 7f of the slider holder T is inserted and the slider holder is inserted. 7 top surface 7a
A plate spring 9 is placed on the protrusion 7.
e is fitted with a pair of mounting holes 9d provided in the leaf spring 9 to be fixed in place.

9a is a sliding contact piece, as shown in Fig. 3 (case 2).
It is designed to apply an appropriate sliding pressure to the slider receiver 7 by elastically contacting the inner wall of the upper surface thereof.

Reference numeral 9e denotes an elastic contact piece bent at a substantially right angle from the base 9b of the leaf spring 9, and is positioned within the notched recess 7g of the slider holder 7, and the protrusion 9f at its tip is inserted into the case 2.
An appropriate number of holes 2b (or recesses) provided in the side wall 2e of
As the slider receiver 7 slides, the protrusion 9
A click feeling caused by the engagement and disengagement between f and the hole 2b is transmitted to the operator operating the lever 7f.

FIG. 4 shows another embodiment of the present invention, in which a tongue piece 9g is formed at the lower end of the contact piece 9e and extends laterally at right angles thereto, and a protrusion 9f is provided on this tongue piece 9g. be.

This is effective in ensuring the necessary elasticity by providing a large span to the contact piece 9e when the variable resistor is small and it is difficult to add sufficient elasticity to the contact piece 9e.

The present invention has the above-mentioned configuration, but according to the present invention, conventional springs and poles are not required, and a click contact piece is provided on the leaf spring, so the number of parts can be reduced and assembly is easy. It has the advantage of being simple.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional side view of a conventional variable resistor, Figures 2 and 3 are
The figures relate to one embodiment of the present invention, FIG. 2 is a perspective view of the main part, FIG. 3 is a sectional view of the main part, and FIG. 4 is a perspective view of the main part according to another embodiment of the invention. 1... Insulating board, 2... Case, 2b
...hole, 3...resistor, 4...
・Conductor, 5.6...terminal, 7...sliding tube, 7g...notch recess, 9...
・Plate spring, 9e...Contact piece, 9f...
・Protrusion.

Claims (1)

[Scope of utility model registration request] A notch recess is provided on the side of the slider receiver with the slider attached to the lower surface, and the leaf spring, which is inserted through the lever of the slider receiver and fixed to the upper surface, is inserted along the notch recess from the side. A bent contact piece is formed, and the contact piece is brought into elastic contact with the side wall of the case, and the tip of the contact piece is made to be freely engaged and detached from a concave or hole provided in the side wall of the case. A slide type variable resistor characterized by: