PUSH SWITCH

• Main Authors: YOSHIDA FUMIO, ENDO KOTARO, KASEGAWA AKIMORI, OHORI HIROTAKA
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

PROBLEM TO BE SOLVED: To provide a push switch capable of having a small number of components.SOLUTION: A push switch comprises: a housing 50 with a hollow structure in which a guide part 53 is formed in an inner peripheral surface; an operation body 10 in which first ratchet teeth 15 are formed; a cam part 26; second ratchet teeth 27; a cam follower 20 which can be lifted in an axial direction in the housing 50, and rotated in a peripheral direction; a first spring 70; an engaged piece 33 engaged to the cam follower 20; a movable contact point 32a; a metal contact member 30 that is integrally rotated with the cam follower 20; a fixed terminal 40 in which the contact point is switched by rotating the contact member 30; and a base 60 in which the fixed terminal 40 is attached. A penetration hole 31a is formed at a rotational center of the contact member 30. The base 60 comprises a rotational axial part 62 which is inserted into the penetration hole 31a and becomes the rotational center of the contact member 30.SELECTED DRAWING: Figure 3 【課題】部品点数の少ないプッシュスイッチを提供する。【解決手段】ガイド部５３が内周面に形成された中空構造のハウジング５０と、第１ラチェット歯１５が形成された操作体１０と、カム部２６、及び、第２ラチェット歯２７を有し、ハウジング５０内で軸方向に昇降可能かつ周方向に回転可能であるカムフォロワ２０と、第１ばね７０と、カムフォロワ２０に係合する被係合片３３、及び、可動接点３２ａを有し、カムフォロワ２０と一体で回転する金属製のコンタクト部材３０と、コンタクト部材３０が回転することで接点が切り換わる固定端子４０と、固定端子４０が取り付けられたベース６０と、を備え、コンタクト部材３０の回転中心に貫通孔３１ａが形成され、ベース６０は、貫通孔３１ａに挿入されると共にコンタクト部材３０の回転中心となる回転軸部６２を備えている。【選択図】図３