Limit stop assembly for a screw and nut linear actuator

Details Limit stop assembly for a screw and nut linear actuator Limit stop assembly for a screw and nut linear actuator

1990-11-30

1992-02-18

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

192141, F16H 2702, F16D 700

Patent

active

050883399

ABSTRACT:
A screw and nut linear actuator has a threaded drive screw. A drive nut is threaded onto the drive screw and is axially translatable thereover by rotating the drive screw relative to the drive nut. The drive nut has a first member translatable along the drive screw upon rotation of the drive screw relative to the first member, and a second member mounted to the first member for rotation relative thereto. The drive screw and first member are allowed to rotate but not translate relative to the second member with the first member restrained from rotation relative to the drive screw. A limit stop is threaded onto the drive screw and is engageable by the first member to restrain rotation of the first member upon engagement by the first member. Engagement of the first member with the limit stop restrains further rotation of the first member thereby restraining further translation of the drive nut while allowing rotation of the drive screw and the first member relative to the second member.

REFERENCES:
patent: 826858 (1906-07-01), Jones
patent: 2791129 (1957-05-01), Russell
patent: 2979965 (1961-04-01), Diebold
patent: 3029660 (1962-04-01), Sears
patent: 3319481 (1967-05-01), Goodman

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