| 摘要 |
<p>A probe (1; 30) comprises a support casing (2; 31), at least an arm (4, 5; 32) movable with respect to the casing (2; 3) and having a first element (9; 40), a second element (8; 36) and an intermediate third element (10; 16; 22; 41), a feeler (6, 7; 33) fixed to the first element (9; 40) of the movable arm (4, 5; 32) for contacting the piece (3) to be checked, and detecting means (13; 34) for providing a signal depending on the position of the movable arm (4, 5; 32).
<??>In order to protect the probe (1; 30) from accidental impacts, the intermediate element (10; 16; 22; 41) is removably coupled to the first element (9; 40) and the second element (8; 36) and defines a section (14; 17; 23; 47) adapted to break as a consequence of impacts against the feeler (6, 7; 33) and the first element (9; 40) of the movable arm (4, 5; 32) occurring along any direction. </p> |
