Touch measuring device esp. for measuring distance in direction of measurement axis and perpendicular

摘要

The device has a housing (3) and a probe handle (5) spring biased into a rest position. The probe handle is movable in the direction of a measurement axis (7) relative to the housing. It can pivot in all directions relative to the housing about a pivot point (11) on the measurement axis. The handle has a probe arm (15) extending from the housing. The free probe end (17) of the arm defines a probe reference point (19) lying in the rest position on the measurement axis. A coupling arm (21) has a free end distal from the pivot point of the probe end. This forms an outer control surface (31) rotationally symmetrical to the measurement axis with a convex generation end with a middle point eccentric to the rotational symmetry axis. A coupling element (25) is guided in the housing in the direction of the measurement axis. This has an open recess tapering out towards the probe end. This forms an inner control surface (29) with a linear generation end at which the outer control surface lies. The control surfaces (29,31) are formed such that the coupling arm moves the coupling element in the direction of the measurement axis both when the arm moves in the direction of the axis and also when the arm is deflected about the pivot point. A measuring device (27) detects the position of the coupling element relative to the housing. the coupling element has a through aperture (47). Abutment members (49,51) are provided on the housing and on the free end of the coupling arm. These lie on each other through the aperture to at least limit the movement of the probe lever (5) along the measurement axis.