| 摘要 |
PURPOSE:To facilitate the design work by reciprocating cams to generate pulses of a switch and perform the optional pitch operation of cams by the rotation of a operation body provided separately. CONSTITUTION:When an operation body 4 is rotated, a lug 22 pushes a coupling piece 19 at the first cam 3a, the first cam 3a is rotated to the switch operation position, the second and third cams 3b, 3c are rotated to operate a switch 5, then the lug 22 is removed from the coupling piece 19, the first cam 3a is returned, the second and third cams 3b, 3c are returned, and the switch 5 is reset. One pulse is generated from the switch 5 according to this series of operations. The design is thereby facilitated to satisfy both the desire from users on operability and the operational characteristic inherent to the switch for pulse generation.
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