Reinforced lead screw

Details Reinforced lead screw Reinforced lead screw

1997-04-17

1999-06-22

Jeffery, John A.

Machine element or mechanism

Gearing

Teeth

74 8915, F16H 5517

Patent

active

059139412

ABSTRACT:
The reinforced lead screw has a hollow, elongate reinforcing rail surrounding a lead screw and a nut-bearing movable along the reinforcing rail. The nut-bearing has a portion projecting through a slot in the reinforcing rail and includes threads to engage the threads on the lead screw such that when the lead screw is rotated in either direction, the nut will translate along the rail. The rail may be provided with a sleeve-bearing which, in combination with the rail, serves not only as a guide for movement of the nut but lateral support for the lead screw.

REFERENCES:
patent: 4566345 (1986-01-01), Erikson et al.
patent: 5079963 (1992-01-01), Yamamoto et al.
patent: 5689997 (1997-11-01), Schaller

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