Patent ID: 8721171

Claim:
A switch device comprising: a case having a through hole; a cylindrical member attached to the through hole of the case; and an operating member having a shaft section inserted into the cylindrical member and an operating section provided in an outer end portion of the shaft section, wherein the operating member is provided with an engaging projected section that projects towards an axial center of the operating section, and has a spring member attached that resiliently deforms in a radial direction, wherein the cylindrical member is provided with, in an end portion in an outer direction of the case, a release groove where the engaging projected section is movable in an axial direction, and a restricting projected section which is formed in a position where circumferential direction differs relative to the release groove and restricts movement to the outer direction of the engaging projected section, wherein the cylindrical member is provided with a lock groove which locks the spring member, when the operating member is in a position where movement to the outer direction of the engaging projected section is restricted by the restricting projected section.