| 摘要 |
<p num="1"><br/> This mechanism offers a simple solution wherein an axial movement of a <br/>grooved piece (6) brings about a radial movement of rigid balls (5) that grip <br/>and <br/>deform a pipe (1) that is initially in a plastic state. Depending on the <br/>geometry of <br/>the channels (7) of the grooved piece (6), a variable grip is achieved. This <br/>gripping operation is simply released as the grooved piece (6) returns to its <br/>initial position, the pipe (1) itself now being in a solid state, so that the <br/>balls (5) <br/>are returned to their initial position. The correct position for gripping the <br/>plastic <br/>pipe can be detected by a detector (11). The pressurisation of the plastic <br/>pipe <br/>can be achieved thanks to an elastic joint (10) on the piece that surrounds <br/>the <br/>pipe (1).<br/>
|
