Patent ID: 6082875
Filing Date: 2000-07-04
Classification: G01C

Abstract:
A constructional laser, comprising a housing (2); a casing (3) supported on the housing (20) with a possibility of displacement relative thereto in axial and radial directions and having at least one beam hole (7, 8); a motor-driven shaft (4) supported in the housing (2) for rotation about a rotational axis (A) and having an end projecting into the casing (3); means (10) for providing rotation-imparting connection between the shaft (4) and the casing (3); a light source (5) for emitting a laser beam (6) and supported in the housing (2) for rotation about the rotational axis (A); a direction-changing device (9) for the laser beam (L) and supported on the end of the shaft (4) projecting into the casing (3), the casing (3) having a peripheral wall (33) spaced from the direction-changing device (9); and means for limiting the displacement of the casing (3) relative to the housing (2) in the axial and radial directions, whereby any contact between the peripheral, wall (33) of the casing and the direction-changing device is prevented.