Patent ID: 8552325

Claim:
A click mechanism for an electric part that has a rotationally-manipulated shaft, comprising: a rotatable plate that has a recess formed on a surface of the rotatable plate and rotates integrally with said rotationally-manipulated shaft, wherein said recess has a wall with a U-shape or an annular shape; a spring that is made of a plate material or line material that has a U shape with two arms and is housed in said recess; a click piece disposed on an outer perimeter of said rotatable plate within an opening in the wall of the recess so as to retractably protrude from the outer perimeter, wherein the click piece is not attached to said rotatable plate; and a projection and depression formed on an inner perimeter of a housing for said rotatable plate to be arranged in a circumferential direction of the inner perimeter, wherein said click piece is cylindrical and said recess keeps said spring in place so that said click piece is biased by contact with a middle region of said arms of said spring to be in resilient contact with said projection and depression at a perimeter thereof to provide a click feel repeatedly during rotation of said rotationally-manipulated shaft.