| 摘要 |
The central component of the chuck supports jaws that can be moved between a tool clamping position and a released position. Each jaw comprises a seat that is open towards the axis and has a back and lateral faces. A roller is fitted against the back of the seat and is rotatable about its axis parallel to the axis and translationally movable between the two lateral faces of the seat. The back of the seat forms a very flat V, in the center of which the roller positions itself when an operator tightens the jaws on the tool. Then, when the chuck is rotated, to the right, the roller rolls without sliding on the jaw and on the tool until it is wedged against the straight lateral face of the seat. Excellent clamping of the tool is thus obtained.
|
