Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Patent
1993-02-24
1994-07-05
Howell, Daniel W.
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Having tool-opposing, work-engaging surface
74 89, 74422, 105 30, 384 45, 476 67, B23Q 114, B61B 1300
Patent
active
053261976
ABSTRACT:
A drive apparatus that is compact in size, low in cost, allows the attaining of a high degree of accuracy as well as high-speed driving, suppresses noise, and obtains both large thrust and braking force. The present invention is able to obtain the above-mentioned advantages of compact size, reduction of costs, high accuracy, high-speed driving and suppression of noise as a result of providing a torque generation device on a slider guided by a track rail, attaching a drive roller to which is torque is applied by an output shaft of the torque generation device, and that drive roller rolling along the track rail. In addition, the above-mentioned advantages of large thrust and braking force are obtained by forming indentations in at least one of either the track rail or drive roller with respect to the other track rail or drive roller.
REFERENCES:
patent: 3906866 (1975-09-01), Knippel
patent: 4304187 (1981-12-01), Becker et al.
patent: 4876967 (1989-10-01), Postma
Howell Daniel W.
Nippon Thompson Co. Ltd.
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