Patent ID: 7434331
Filing Date: 2008-10-14
Classification: G01B

Abstract:
1. Dimension measuring instrument including: a mobile carriage capable of moving parallel to a guide, with the guide defining a measuring axis; a driving device connected to the carriage by a transmission including an elastic transmission element, so as to determine the linear movement of the mobile carriage; a probe connected to the mobile carriage and designed to be brought into contact with a part to be measured; coupling means that can be actuated by the operator and capable of taking up an unlocked state, wherein the forces acting on the mobile carriage are transmitted by the elastic transmission element that is free to deform under the action of these forces, and a locked state, wherein the forces acting on the mobile carriage are transmitted by the coupling elements without influencing the elastic transmission element; wherein the measuring instrument includes a protective casing surrounding a protected volume in which the mobile carriage and the guide are placed.