Patent ID: 7076882

Claim:
A head for the linear dimension checking of a mechanical piece including a support structure with a casing that defines a recess and a longitudinal geometric axis, an arm-set movable with respect to the support structure with an arm, at least partially housed in the recess, that defines an end portion, and a feeler, coupled to the arm, for touching a surface of the mechanical piece to be checked, a fulcrum, located between said arm and said support structure, for enabling displacements of said arm with respect to said support structure about a transversal axis, thrust devices located between the arm and the support structure for urging the feeler towards said surface of the piece to be checked, a transducer, coupled to said arm and said support structure, for providing signals depending on the position of said arm with respect to said support structure, and an adjustment device, coupled to the casing, with an abutment surface for touching said end portion of the arm, and an actuation element for adjusting the position of the abutment surface and causing or limiting rotational displacements of the arm about the transversal axis defined by the fulcrum.