JPS6023A - Switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a switch that can easily distinguish between normal rotation and switch operation by the feel of the operating shaft.

In recent years, as electronic devices have become smaller, there has been a strong demand for smaller electronic components, and electronic components are rapidly becoming smaller.
On the other hand, in terms of properties, better properties than conventional ones are desired. However, not only individual switches, but also switches attached to other electronic components such as variable resistors have become smaller and cannot use large springs with strong pressure, which increases the driving force of the switch and the contact pressure. In particular, when the driving force of the switch decreases, the moderation of the switch is poor and it becomes difficult to obtain a light switching feel.Also, when the switch attached to a variable resistor etc. The difference in rotational torque when the switch is turned on and off becomes small, making it unclear when the switch is turned off and making it difficult to determine where the switch is working.

The present invention eliminates the above-mentioned conventional drawbacks, and provides a switch that increases the switching driving force of the switch and can clearly distinguish between normal rotation and switch operation.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a cross-sectional plan view of a switch in one embodiment of the present invention. In the figure, the operating shaft 1 has a switching piece 2.
are connected through the non-circular hole 3 so as to rotate in conjunction with each other. On the same plane as this switching piece 2, the switching plate 4 has a stepped portion 5.
is rotatably supported by. Stepped portion 6 of switching piece 2
When the switch plate 4 engages with the switching plate 4, the switching plate 4 rotates about the stepped portion 5 in conjunction with the rotation of the switching piece 2. Switching plate 4
One end of a spring 8 is attached to the tip 7 of the spring 8, and the other end is attached to the attachment hole 10 of the handle 9. The sedge ring 8 is formed into an arcuate shape, and as shown in FIG. 2, it is configured to perform a reversal operation at the neutral position of the switching plate 4. Fixed terminals 11 and 12 are attached to both sides of the switching plate 4 to restrict the entire range of movement of the switching plate 4 to the left and right. When the switching plate 4 is made of a conductive material, the position of the switching plate 4 can be moved from side to side (thereby, the contacts are switched, forming a switch. A protrusion 13 is provided at the end of the switching plate 4). A convex portion 16 is provided on the side wall 15 of the opposing housing 14. A long hole 1 is provided at the fitting portion with the stepped portion 5, which is the rotation support portion of the switching plate 4.
7 is provided.

Now, if you rotate it counterclockwise as shown by the arrow in FIG. 2, the switching plate 4 will eventually mesh with the stepped portion 6 of the switching piece 2.
Start rotating clockwise as shown by arrow B. Switching plate 4
starts rotating, the protrusion 13 of the switching plate 4 moves to the sieve body 14.
It requires a force to climb over the convex portion 16. This force becomes the driving force for switching the switch. When a force greater than this switch driving force is applied, the protrusion 13 of the switching plate begins to slide along the protrusion 16 of the housing, and the switching plate 4 is guided into the long hole 1A as shown by arrow C. It rises to the top. Here, due to the expanding force of the spring 8, a force is always acting on the switching plate 4 in the direction opposite to the direction of the arrow C that tries to press down the stepped portion 5. There is no need for an extra spring, and a stronger switching driving force can be obtained. Furthermore, when the switching piece 2 is rotated,
The switching plate 4 is in the neutral position as shown in FIG. Protrusion of switching plate 4? Since fA13 and the convex portion 16 of the housing 14 are formed with a gently curved surface or an oblique portion,
Once the neutral position is exceeded, they slide against each other, and the expansion force of the spring is applied, causing the switching plate 4 to reverse rapidly. At this time, you can get a very light switching feeling.

In fact, when the switching plate 4 is in contact with the fixed terminal 11''! or 12, the protruding portion 13 and the convex portion 16 are in contact with each other at their oblique portions, so as a result, the fixed terminal 11'' or 12 , and the contact pressure between them becomes intense.If the convex portion 16 of the housing 14 is formed to have elasticity, this effect will be even greater.

Although not shown, the spring 8 on the mounting hole 10 side is attached to a separate movable piece, and even if the switch is configured such that the movable piece performs the opening/closing operation of the switch with one end centered on the entire fulcrum, the above-described embodiments may be applied. You can get the same effect as . Furthermore, instead of the protrusion 13 and the protrusion 160, the protrusion 13 and the protrusion 160 may have a four-part relationship.

FIG. 3 shows a variable resistor equipped with the switch of this embodiment, in which the switch of the above embodiment is attached to the rear part 18 of the variable resistor, and the operation 1lIl111 drives the switching piece 2,
The switching operation is performed in conjunction with the variable resistor storage section 19.

As explained above, the switch of the present invention can distinguish between normal rotation and operation of the switch by the feel of the operating shaft, and has a simple structure and great practical value.

[Brief explanation of drawings]

FIG. 1 is a sectional plan view of a switch showing an embodiment of the present invention, FIG. 2 is a plan view of the switch when it is operated, and FIG. 3 is a side view of a variable resistor equipped with the switch. 1...Operating axis, 2...Switching piece, 4...
...Switching plate, 5...Stepped section, 6...Stepped section,
8...Spring, 11.12...Fixed terminal, 13...Protrusion, 14...Casing, 16...Protrusion , 1 completion...long hole. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 91-

Claims (6)

[Claims] (1) A switching piece that has a stepped part and rotates in conjunction with the operating shaft, a switching plate that engages with and disengages from the stepped part of this switching piece and rotates around the stepped part, and a protrusion provided at one end of this switching plate. A switch comprising a convex portion provided on a housing so as to come into contact with the switching plate, and a fixed terminal that comes into contact with and separates from the switching plate. (2) The switch according to claim (1), wherein a long hole is bored in the switching plate, and a stepped portion is inserted through the long hole to serve as a fulcrum. (3) The switching plate is biased by a spring, and the switching plate is configured to move in the long diameter direction of the elongated hole due to the pressure of the spring. The switch mentioned. (4) The switch according to claim (1), wherein the convex portion of the housing is held by an elastic body. (5) The switch according to claim (1), wherein the protruding portion of the switching plate and the convex portion of the housing are formed of a curved surface or an oblique portion. (6) Claim No. 1 connected to an electronic component and configured such that an operating shaft of the electronic component drives a switching piece.
) Switch described in section.