Geometrical instruments – Gauge – Automotive
Patent
1994-05-20
1997-07-08
Fulton, Christopher W.
Geometrical instruments
Gauge
Automotive
33288, G01B 1103, G01B 5004
Patent
active
056448546
ABSTRACT:
A first upright frame, to be disposed alongside a vehicle body to be repaired, has a top horizontal rail and a bottom horizontal measuring bar; a vertical, travelling, measuring rail is suspended from a carriage moving on the top rail for horizontal movement, a laser carriage is guided for vertical movement on the vertical travelling rail, a laser support is rotatably secured to the laser carriage for movement in a vertical plane, a cylindrical laser is supported by the support for rotation about its longitudinal axis. The laser has a lateral slit at one end through which a diverging planar laser beam is emitted. A vertical measuring tape is carried by the travelling rail and can be longitudinally adjusted while a horizontal measuring tape is longitudinally adjusted on the horizontal measuring bar. The laser can be positioned anywhere in a plane normal to an imaginary horizontal datum plane determined by targets underneath the vehicle. The laser beam can be directed towards the vehicle either as a horizontal or a vertical linear ray and the laser beam, when illuminating a specific zone of the vehicle, can be rotated to illuminate a graduation of the vertical measuring rail when the beam is horizontal or a graduation of the horizontal measuring bar when the beam is vertical. Therefore, specific areas of the vehicle can be directly measured as right angular coordinates of a selected reference point on the datum plane.
REFERENCES:
patent: 4513508 (1985-04-01), Jarman et al.
patent: 4598481 (1986-07-01), Donahue
patent: 4691443 (1987-09-01), Hamilton et al.
patent: 4922623 (1990-05-01), Aldrich et al.
patent: 5029397 (1991-07-01), Palombi
patent: 5515613 (1996-05-01), Hinson
patent: 5522145 (1996-06-01), Chisum
Fulton Christopher W.
Martineau Fran.cedilla.ois
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