Alignment adjusting mechanism and measuring instrument

摘要

An alignment mechanism (10) includes: an adjusting plate (40) having first and second adjustment ends parallel to an X axis direction; a probe fixing portion (60) provided to the adjusting plate (40); a probe (8) fixed to the probe fixing portion (60); a reinforcing plate (30) having first and second base ends parallel to the X axis direction, displacement of the reinforcing portion in a Y axis direction being restricted; Y-direction adjusting screws (70) for pressing the adjusting plate (40) in the Y axis direction; and adjustment connectors (521) for respectively connecting the first adjustment end with the first base end and the second adjustment end with the second base end. A stylus (8C) of the probe (8) is disposed on a line of intersection of a first inclined surface including the first adjustment end and the first base end and a second inclined surface including the second adjustment end and the second base end.