Abstract: A click mechanism for an electric part comprises a spring 50 made of a plate material and disposed on a rotatable plate 40 that rotates integrally with a rotationally-manipulated shaft of an electric part, a click piece 60 disposed on the outer perimeter of the rotatable plate 40 so as to retractably protrude from the outer perimeter, and projections and depressions 25 formed on the inner perimeter of a housing 22 for the rotatable plate 40 to be arranged in the circumferential direction of the inner perimeter. The click piece 60 is cylindrical and biased by the spring 50 to be in resilient contact with the projections and depressions 25 at the perimeter thereof. The click mechanism can produce a fine and clear click feel, has high durability, and can be reduced in size.

Abstract: A rotary switch includes a rotor that is insert molded so upper and lower contact pieces have a predetermined number of contact regions with a predetermined angular width in each of a plurality of annular zones defined by a plurality of concentric circles and are stacked in a disk part. The contact pieces are exposed in two surfaces of the disk part, an upper contactor holder and a lower contactor holder are placed to cover a lower half and an upper half of the disk part of the rotor. A plurality of elastic contacts are brought into elastic contact with lower and upper side surfaces of the disk part in a plurality of annular zones, and a rotating operation shaft is inserted through the rotor, the lower contactor holder, and the upper contactor holder, and can rotate the rotor.

Abstract: A rotary switch is provided having high flexibility in design depending on required operations. A rotor (70) is insert molded so that upper and lower contact pieces (7C1 and 7C2) each having a predetermined number of contact regions each having a predetermined angular width in each of a plurality of annular zones defined by a plurality of concentric circles are stacked in a disk part (72), and the contact pieces are exposed in one surface and the other surface of the disk part, an upper contactor holder (80) and a lower contactor holder (60) are placed to cover a lower half and an upper half of the disk part of the rotor, and have a plurality of elastic contacts respectively brought into elastic contact with lower and upper side surfaces of the disk part in a plurality of annular zones, and a rotating operation shaft (10) is inserted through the rotor, the lower contactor holder, and the upper contactor holder, and can rotate the rotor.

Abstract: A click mechanism for an electric part comprises a spring 50 made of a plate material and disposed on a rotatable plate 40 that rotates integrally with a rotationally-manipulated shaft of an electric part, a click piece 60 disposed on the outer perimeter of the rotatable plate 40 so as to retractably protrude from the outer perimeter, and projections and depressions 25 formed on the inner perimeter of a housing 22 for the rotatable plate 40 to be arranged in the circumferential direction of the inner perimeter. The click piece 60 is cylindrical and biased by the spring 50 to be in resilient contact with the projections and depressions 25 at the perimeter thereof. The click mechanism can produce a fine and clear click feel, has high durability, and can be reduced in size.