A sliding type switch

Abstract

The invention provides a sliding type switch which can well keep contact between a contact member and terminal boards, raise pressure on contact-making surfaces and raise position detection precision of operation units. The sliding type switch has a plurality of terminal boards arranged on a terminal bench in an extending mode, a movable part which is in linkage with operation units such as a bear lever and which can rotate relative to the terminal bench and contact-making members which can slide on the terminal board with movements of the movable parts and contact-making portions which can separately be in contact with a pair of terminal boards during moving. The contact-making portions of the contact-making members can be utilized to make contact with the pair of terminal boards to realize electrical conduction. Electrical signals corresponding to positions corresponding to the terminal bench are generated, thus in the sliding switch in which the positions of the operation units can be detected, at least one contact-making portions of each contact-making member can make point contact with the terminal board while sliding.

Description

technical field [0001] The present invention relates to a slide type switch, which realizes electrical conduction by contacting the contact portion of the contact member with the terminal board, and can detect switching by generating an electrical signal corresponding to the relative position of the movable part with respect to the terminal board. The position of the operating unit such as the lever. Background technique [0002] Generally, an automobile equipped with an automatic transmission is provided with a slide type switch called a so-called shift switch for detecting the position of an operating unit such as a shift lever. This slide type switch, as disclosed in Patent Document 1 and Patent Document 2, for example, is constituted to have: a plurality of terminal boards, which are extended and provided on the terminal block; movable relative to the terminal block; and a contact formed on the movable member and capable of sliding on the terminal board accompanying the...

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned conventional slide type switch, since the contact portion of the contact piece slides while being in line contact with the terminal board, there is a problem that the contact portion of the contact piece is moved against the terminal board when the movable member moves. Insufficient pressure on the contact surface when sliding upward, or tilting of the contact piece during sliding, causing one of the pair of contact parts to separate from the terminal board

As described above, if the contact part is separated from the terminal board due to insufficient contact surface pressure or inclination, etc., there will be poor electrical conduction between the contact and the terminal board, or the position detection accuracy of the operation unit will deteriorate. The problem

Images