Electric-part clicking mechanism

Abstract

The invention provides a locking mechanism for electrical components. The locking mechanism has: a spring (50) disposed on a rotating plate (40) that rotates integrally with a rotating operation shaft of an electrical component and formed of a plate; Concave-convex (25), which is arranged on the inner peripheral surface of the casing (22) that accommodates the rotating plate (40), is formed along its circumferential direction. The locking stopper (60) has a cylindrical shape, and the peripheral surface part of the locking stopper (60) is elastically contacted with the unevenness (25) by the force of the spring (50). Accordingly, it is possible to realize a locking mechanism of an electric component that can provide a good and clear locking feeling, has high durability, and can be downsized.

Description

technical field [0001] The present invention relates to a locking mechanism for generating a locking feeling (a sense of jerk) when operating an electrical component that is rotated or slid. Background technique [0002] As a conventional locking mechanism of this type, for example, as described in Patent Document 1 or Patent Document 2, there is a locking mechanism using a ball and a coil spring. [0003] figure 1 It shows the structure around the switch box and the movable plate of the rotary switch equipped with the locking mechanism disclosed in Patent Document 1. figure 1 Among them, reference numeral 1 denotes a switch box, 2 denotes an operation shaft for rotating operation, and 3 denotes a movable plate fixed to the operation shaft 2 . In addition, reference numeral 4 denotes a movable contact that is in contact with a fixed contact (not shown), and 5 denotes a coil spring that urges the movable contact 4 toward the fixed contact and urges the movable plate 3 Appl...

AI Technical Summary

Problems solved by technology

[0007] However, as in the above-mentioned conventional example, the balls are in elastic contact with the concavities and convexities formed in a row on the other side of the housing. In such a structure, the balls make point contact (point abutment) and cause local wear of the housing. Therefore, in terms of durability, There is a problem

[0008] In addition, in an electrical component such as a switch whose operation shaft is rotated, for example, it is necessary to generate a strong torque (step torque) in order to obtain a clear locking feeling, but in order to generate a strong torque Therefore, it is necessary to use a coil spring with a thick wire diameter, which hinders the miniaturization of electrical components corresponding to the increase in the outer diameter of the coil spring.

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