Linear actuator for large-angle motions

Details Linear actuator for large-angle motions Linear actuator for large-angle motions

1982-09-20

1986-01-21

Staab, Lawrence J.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

74102, 74 99R, 74 96, 74 89, F16H 2702, F16H 2902, F16H 2920, F16H 2145

Patent

active

045651043

ABSTRACT:
A linear actuator for rotating a load, such as an antenna, in which the load is pivoted about a load pivot axis and a drive point on an arm extending from the load is driven along a path of travel defined by a frame pivoted about a frame pivot axis parallel to the load pivot axis and normal to the path of travel, the load pivot axis being equally distant from the drive point and the frame pivot axis. The structure of the linear actuator reduces loss of moment arm at the extremes of travel and minimizes stress on the components of the actuator.

REFERENCES:
patent: 3726029 (1973-04-01), Deen et al.
patent: 3774462 (1973-11-01), Thompson
patent: 3864869 (1975-02-01), Leuenberger
patent: 3874245 (1974-04-01), Kral et al.
patent: 4050318 (1977-09-01), Wolf
patent: 4061049 (1977-12-01), Beurrier
patent: 4251819 (1981-02-01), Vickland
patent: 4282763 (1981-08-01), Griebeler
patent: 4343200 (1982-08-01), Alworth et al.
patent: 4381166 (1983-04-01), Smart
patent: 4435116 (1984-03-01), Van Deberg

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