Patent ID: 6269546
Filing Date: 2001-08-07
Classification: G01B

Abstract:
A head for the linear dimension checking of mechanical pieces includinga support element (1) that defines a longitudinal geometrical axis,a movable armset with an arm (49), movable with respect to said support element (1), and a feeler (67) coupled to said arm (49),a fulcrum (74) coupled to said arm (49) and said support element (1), for defining a rotation axis and enabling limited rotational displacements of said arm (49) about said rotation axis with respect to said support element (1), anda transducer (105,107), coupled to said arm (49) and said support element (1), for providing signals depending on the position of said arm (49) with respect to said support element (1),characterized in that said fulcrum (74) comprises a deformable element with two blocks (81,83) respectively coupled to said arm (49) and said support element (1) and arranged substantially parallel with respect to each other, the deformable element comprising a first lamina (75) and at least a second lamina (77), each of said first (75) and second (77) lamina being permanently secured to both blocks (81,83) angularly arranged with respect to both said blocks (81,83) and the other of said first (75) and second (77) lamina.