Bridge type coordinate measuring machine
Number of patents in Portfolio can not be more than 2000
United States of America
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-
Jul 10, 1990
Grant Date -
N/A
app pub date -
Jun 17, 1988
filing date -
Jan 24, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bridge type coordinate measuring machine characterized by a bridge (20) that has a closed loop configuration encircling the measuring machine base (10). The bridge (20) includes two uprights (21, 22), an upper member (23) connecting the uprights together and at least one lower member (24) connecting the uprights together below the upper surface (11) of the base (10). Bearings (41) for the bridge are offset inwardly from the vertical axes of the uprights of the bridge and a guideway (12, 13), along which the bearings travel, is located on each side of the base. The bearings (41) operate upwardly, downwardly and sidewardly against the surfaces of the guideways (12, 13) located on the sides of the base (10). This arrangement both stiffens and raises the resonant frequency of the bridge, thereby improving the measuring accuracy and repeatability of the coordinate measuring machines performance.
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Cited Art Landscape
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