| 摘要 |
PROBLEM TO BE SOLVED: To mount a knob so as to surely prevent it from coming off from a knob mounting member without rattling. SOLUTION: One of a knob 16 and a body(knob mounting member) 18 is formed with an engagement protrusion 26, and the other is formed with a stopper 27 to be pushed in by the engagement protrusion 26 and a coming-off preventing edge part 28 for receiving the engagement protrusion 26 to which the stopper 27 is pushed in at the back side according to the rotation of the knob 16 for preventing the knob from coming off. When the engagement protrusion 26 is received at the back side of the coming-off preventing edge part 28, the stopper 27 is restored, and the detachment of the engagement protrusion 26 from the back side of the coming-off preventing edge part 28 is prevented. Thus, it is possible to mount the knob 16 so as to surely prevent the knob 16 from coming off from the body 18 without rattling. COPYRIGHT: (C)2006,JPO&NCIPI
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