Drive apparatus equipped with a ball screw and an XY drive appar

Details Drive apparatus equipped with a ball screw and an XY drive appar Drive apparatus equipped with a ball screw and an XY drive appar

1995-06-05

1997-03-25

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

74 8915, 744248B, 74459, 108 20, 108143, F16H 2522, F16H 2524

Patent

active

056134037

ABSTRACT:
A drive apparatus equipped with a ball screw which drastically improves the feeding accuracy of the driven members. The drive apparatus is equipped with detecting devices that have mutually different resolutions so as to detect the amount of rotation of each of a plurality of nuts possessed by the ball screw, thereby improving the overall resolution of the apparatus.

REFERENCES:
patent: 4270404 (1981-06-01), Murakoshi et al.
patent: 4872362 (1989-10-01), Kemper et al.
patent: 5327795 (1994-07-01), Katahira

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