초록 ▼

The invention relates to measuring apparatus and its use, primarily for checking vehicle wheels, and more specifically the alignment of the rotational axes thereof. Two wheels, opposite each other on a vehicle, are provided with projecting stub axles which are disposed accurately coaxial with the re

The invention relates to measuring apparatus and its use, primarily for checking vehicle wheels, and more specifically the alignment of the rotational axes thereof. Two wheels, opposite each other on a vehicle, are provided with projecting stub axles which are disposed accurately coaxial with the respective wheel. The measuring apparatus comprises a scale unit (40) which is mounted on the axle of one of the wheels by means of a locating and fastening means (46, 48) so as to project at right angles therefrom and carrying a movable rider (50) with a scale (55), and a light beam unit (60) preferably comprising a laser (65) and disposed for mounting on the axle of the other wheel, by means of a locating and fastening means (66, 67), to send a light beam (33) onto the scale (55) carried by the movable rider (50) which is locked in an initial position. The measurements are carried out by the units (40, 60) being swung around the centers of the stub axles to different positions and possible movements of the point of incidence of the beam (33) on the scale (55) are observed.

대표청구항 ▼

In an apparatus for checking and determining the alignment of wheel axes, preferably the axes of two substantially coaxially arranged wheels (a wheel in this context being a single wheel or two wheels together) forming a wheel pair, said apparatus comprising two measuring units in the form of elonga

In an apparatus for checking and determining the alignment of wheel axes, preferably the axes of two substantially coaxially arranged wheels (a wheel in this context being a single wheel or two wheels together) forming a wheel pair, said apparatus comprising two measuring units in the form of elongate elements each adapted for attachment to an axle of a wheel in a pair of wheels, so that said elements extend substantially at right angles and in the same direction out from the respective axle, one unit comprising a scale unit having a scale situated at a given distance (y2) from the coacting axle, while the other unit is a beaming unit comprising a ray or beam emitter for emitting a light beam, and a reflector means situated at substantially the same given distance (y1) from the axle coacting with the beaming unit and adapted for reflecting the light beam substantially 90°in a direction towards said scale on the scale unit, the improvement comprising means for adapting to relative, as opposed to absolute, alignment measurement, including means mounting the scale for displacement along the scale unit and means for locking the scale in a selected position along the scale unit.