| 摘要 |
PURPOSE:To secure an assured switching action by providing a projection for forcible rotation of an oscillating switch element at the front side of the interlocking part of a follower matter and said oscillating element. CONSTITUTION:When a push-button 24 is pressed against a spring 3, a switching element 29 interlocks a projection 42 of a right follower shaft 22 of the element 29 since the element 29 has a tilt toward the right. Thus the shaft 22 is moved forward. When the button 24 is released, a main shaft 21 is moved back by the spring 3. Meanwhile the element 29 is driven by a projection 43 of the shaft 22 and tilted toward the left. When the button 24 is pushed again, the element 29 interlocks a projection 42' of a left follower shaft 22' to move the shaft 22' forward since the element 29 has a left tilt. Therefore a conventional phenomenon where a follower shaft is incapable of its drive can be eliminated although the element 29 has a balance at the dead point position since a projection 48 for forcible rotation is set at the back of the projection 42'. |
