Drive apparatus having a ball screw using ultrasonic motors conc

Details Drive apparatus having a ball screw using ultrasonic motors conc Drive apparatus having a ball screw using ultrasonic motors conc

1995-04-18

1997-07-15

Marmor, Charles A.

Machine element or mechanism

Gearing

Directly cooperating gears

310323, F16H 2512, H01L 4108

Patent

active

056472455

ABSTRACT:
A drive apparatus equipped with a ball screw and a plurality of nuts achieves compact size while maintaining output. The above-mentioned effect is obtained by employing ultrasonic motors, concentric with the nuts and ballscrews, which are flat and able to maintain a high output, for driving the nuts.

REFERENCES:
patent: 4739212 (1988-04-01), Imasaka et al.
patent: 5053670 (1991-10-01), Kosugi
patent: 5136201 (1992-08-01), Culp

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