| 摘要 |
It is described an anti-sabotage and anti-theft device for tire inflating valves which is realised by a cap (10) with two main elements of Fig 7 at least, a member (1 5) with an internal thread and capable of screwing on the end of the valve (9) and the envelope (16) of the same cap, so that the connection between the envelope, on which the screwing and clamping torque is applied, and the member (15) is reached by a click device (Fig 7 section A-A) in order to allow the transmission of the torque between the envelope a nd the threaded member in the screwing direction only. So doing, when the clamping of the cap is obtained and a sufficient stopping torque is assured (capable of contrasting the unscrewing torque), it is impossible to unscrew the cap from the valve since the unscrewing torque applied to the envelope is not transmitted to the threaded body.
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