发明名称 |
Cable-controlled electrical safety switch device |
摘要 |
A cable-controlled electrical safety switch device comprises a piston 15 tensioning a cable 2 under the action of a spring 23 via a rod 10 and a screw thread 12a for adjusting the tension of the spring and of the cable. A piston groove 25 actuates a push member 28 for the switch 40. The piston is angularly adjustable. The flank 32 of the groove remote from the spring is helicoidal. When the cable is long, a higher tension is selected so that the groove flank 31 moves away from the push member 28. This distancing is desirable in order that any length variations due to heat-which are greater with a long cable-may be prevented from triggering the switch. The clearance between the other flank 32 and the push member 28 is then corrected by rotation of the piston.
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申请公布号 |
US5003135(A) |
申请公布日期 |
1991.03.26 |
申请号 |
US19890326504 |
申请日期 |
1989.03.20 |
申请人 |
LA TELEMECANIQUE ELECTRIQUE |
发明人 |
PICCOLI, JEAN-LUC |
分类号 |
H01H3/02;H01H3/32;H01H15/10 |
主分类号 |
H01H3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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