| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent rotation of a knob of a manual valve having a ratchet mechanism. <P>SOLUTION: A rod 50 has a male thread 52 in the external peripheral part and at the same time, but has no connection with the knob 10 but keeps rotation detented, and is tubular-shaped and are held rotatably fast on the body 80, a slide nut 20 where a female thread 22 and coupled with the by male thread 52 of rods 50 is formed in the inner periphery, and the engagement members 30 which are fixed on the knob 10 and elastically deformed for engagement with the slided nuts 20 when a larger torque than the predetermined figure is given, and are disengaged: further, hollow knob cover 1 covering knob 10 is used. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
