Pivot drive for manipulator

Details Pivot drive for manipulator Pivot drive for manipulator

1981-05-28

1983-08-23

Herrmann, Allan D.

Machine element or mechanism

Gearing

Backlash take-up

74397, 74410, 74801, 414 4, F16H 132, F16H 5518

Patent

active

043997180

ABSTRACT:
A pivot drive for interconnecting a pair of members that are relatively pivotal about a pivot axis has a torsion rod extending along a rod axis and rotatable by an appropriate drive relative to one of the members. This rod has outer ends carrying input gears of respective constant-mesh gear trains having output gears at least one of which is limitedly rotatable about the pivot axis on the other member. This one output gear can be limitedly rotated and locked in place in the other member so as torsionally to prestress the rod, thereby eliminating play from the drive by bringing the gears of one of the gear trains into snug contact in one direction and the gears of the other gear train into snug contact in the opposite directions.

REFERENCES:
patent: 2016149 (1935-10-01), Leach
patent: 3108498 (1963-10-01), James et al.
patent: 4106366 (1978-08-01), Altenbokum et al.

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