Portal type coordinate measuring machine

Details Portal type coordinate measuring machine Portal type coordinate measuring machine

1985-09-30

1987-03-24

Little, Willis

Geometrical instruments

Miscellaneous

Light direction

33503, G01D 1516, F16H 5552

Patent

active

046514260

ABSTRACT:
A portal type coordinate measuring machine includes a column on each side of a measuring table which is movable by a synchronous belt drive connected to each column. A drive motor is centrally mounted on a bridge portion overlying the columns and it drives a horizontal shaft which extends to each column and effects the rotation of a drive pinion which engages a gear belt which extends parallel to each column and is carried by the column. The drive includes a toothed belt or gear belt which is disposed parallel to the guiding ways for the columns and has its ends firmly clamped on the bridge and an active central portion which extends around a drive pinion which is tensioned on respective sides of the drive pinion by tension rolls.

REFERENCES:
patent: 2981123 (1961-04-01), McHugh
patent: 3241243 (1966-03-01), Speer
patent: 4175327 (1979-11-01), Herzog
patent: 4328713 (1982-05-01), Lund
patent: 4333238 (1982-06-01), McMurtry
patent: 4420886 (1983-12-01), Amano
patent: 4524520 (1985-06-01), Levy

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