Feed system

Details Feed system Feed system

1992-09-28

1994-04-19

Braun, Leslie A.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

744248B, 74459, F16H 2702, F16H 5517

Patent

active

053036042

ABSTRACT:
First and second screw threads along a feed screw permit a slide to be fed at two different speeds for a constant rotation of the feed screw. A first nut moves along the first thread. A second nut is threaded onto the outer diameter of the first nut for common translation along the first thread. Upon contacting a stop shoulder, the first nut stops translation and starts rotating with the screw. This rotation causes the second nut (and slide) to translate off the first nut and onto the second screw thread.

REFERENCES:
patent: 1614038 (1927-01-01), Maxson
patent: 2290395 (1942-07-01), Van Ness et al.
patent: 3244022 (1966-04-01), Wysong, Jr.
patent: 4715241 (1987-12-01), Lipinski et al.
patent: 4797086 (1989-01-01), Adachi
patent: 5022277 (1991-06-01), Shaffer
Hinkle, Rolland T., Kinematics of Machines (2d Edition), Prentice-Hall Inc. 1960, pp. 247, 248; Section 11.10.

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