| 摘要 |
<p>A measuring instrument (1) has an arm (4) having a detector at a distal end thereof, and an arm guide (53) supporting the arm (4) in a manner movable in the axial direction thereof, the measuring instrument measuring a dimension of a workpiece based on the position of the detector. The arm (4) includes a main arm (41) and a sub-arm (42) that are sequentially arranged in the arm guide (53) and are supported in a manner movable relative to a former component thereof. The measuring instrument (1) has a synchronous driver (54) for moving the main arm (41) on the base side and the sub-arm (42) located next to the main arm (41) in the axial direction of the main arm (41). <IMAGE></p> |
