Apparatus for marking by light planes a corner angle in a work area
AssigneeMegascale AB
InventorHans Hedström
Life of this patent
Estimating the term…
Abstract
A system for marking a corner angle in a working area with the aid of light planes, wherein a straight, elongate guide is disposed on each respective side of a planar working surface in the working area. Each guide carries a carriage that can be moved to chosen positions alongs its guide. Each carriage carries a laser unit which is adapted to emit a light plane that intersects the working surface, as well as the light plane of the other laser unit, at a chosen angle. Each laser unit is adapted to maintain its light plane in a set orientation relative to the longitudinal axis of its associated guide, regardless of the position to which the carriage has been moved along said guide, and both laser units are adapted to be activated simultaneously for marking said corner angle.
Claims8
A system for marking a corner angle in a working area with the aid of light planes, comprising a straight, elongate guide along each side of a planar working surface in the working area, each guide having a carriage that is movable therealong to chosen positions and which carries a laser unit adapted to emit a light plane which intersects the working surface at a chosen angle, respective light planes of said two laser units being arranged to mutually intersect at a chosen angle, the two laser units being adapted to be activated simultaneously for marking said corner angle;
- said laser unit supported in spaced relationship with the carriage through a setting arrangement adapted to hold the laser unit parallel with a reference axis parallel with the guide, said setting arrangement including:
- a reflector at or beyond one end of the guide;
- a light emitter which is carried by the chassis of the laser unit and which functions to direct a light beam onto the reflector, the emitter beam being parallel to the reference axis of the guide and the reflector being perpendicular to the reference axis;
- a light sensor detecting a position at which the reflected beam impinges on the light sensor;
- and
- a control unit receiving a light sensor output signal and controlling said setting arrangement such as to hold the light beam reflected by the reflector parallel with the light beam emitted by the emitter.
A system for marking a corner angle in a working area with the aid of light planes, comprising:
- a straight, elongate guide along each side of a planar working surface in the working area, each guide supporting a movable carriage adjustably positioned thereon;
- a laser unit supported on each carriage by a chassis and having a laser emitter adapted to emit a light plane which intersects the working surface at a chosen angle, respective light planes of the laser unit on each carriage being arranged to mutually intersect at a chosen angle;
- a reflector at or beyond one end of said guide;
- a light emitter which is carried by the chassis of the laser unit and which functions to direct a light beam onto said reflector, the emitted light beam being substantially parallel to the reference axis of the guide and the reflector being substantially perpendicular to the reference axis;
- a light sensor detecting a position at which the reflected beam impinges on the light sensor;
- and
- a control unit receiving a light sensor output signal and controlling a setting arrangement such as to hold the light beam reflected by the reflector substantially parallel with the light beam emitted by the emitter.
Dependencies are inferred from the claim text.