PURPOSE: To surely fix a knob and the shaft body in a prescribed position relation by placing the shaft body having a groove part in the inside of the knob, and also, insert-molding the shaft body into the knob.
CONSTITUTION: A shaft body 30 in which a groove part 32 is formed on the side face is molded, thereafter, by inserting it into a metallic mold of the knob 31, both of them are fixed completely by a holding part 48. Also, between the knob 31 and a bearing 33, a coil spring 35 is placed, and on the inside surface of the knob 31, a projection 50 is provided, and the coil spring 35 is energized to the groove part 32 side of the shaft body 30. Moreover the center O1 of the shaft body 30 is shifted in the direction opposite to the side on which a stopper 36 is arranged, against the center O2 of the control 31. Furthermore, in a case 38, a first claw part 51 is provided, and on the shaft body 30, a second claw part 52 engaged thereto is provided, and when an operating part is set to the prescribed position of the main body 1, a first claw part 51 and a second claw part 52 are engaged.
UNEKI HIDEJI
NOZU TOSHIYUKI
MAEKAWA KAORU
