Angular displacement motor with counterbalance chambers

Details Angular displacement motor with counterbalance chambers Angular displacement motor with counterbalance chambers

1991-10-10

1993-11-16

Look, Edward K.

Motors: expansible chamber type

Plural relatively movable or rigidly interconnected working...

With means to control the working fluid to one working...

91422, 92 82, 92121, F15B 1100, F01C 900

Patent

active

052613160

ABSTRACT:
An articulated mechanism for use as an articulated arm of an industrial robot, for example, includes a plurality of arms interconnecting articulations having respective fluid pressure angular displacement motors for angularly displacing the arms relatively to each other. The motors have sidewalls forming working chambers, where an inner surface of the sidewall is exposed to working fluid pressure tending to bow the sidewall outward, and an outer surface of the sidewall has a plurality of counteracting pressure chambers which apply a counteracting pressure force against the sidewall to oppose the outward bowing force, the counteracting pressure force increasing in pressure surface area as the piston is displaced within the motor chamber.

REFERENCES:
patent: 1444577 (1923-02-01), Wilson
patent: 3592104 (1971-07-01), Harness
patent: 4398682 (1983-08-01), Bithrey
patent: 4693665 (1987-09-01), Friederichs et al.
patent: 4716996 (1988-01-01), Hummel
patent: 4751868 (1988-06-01), Paynter
patent: 4823678 (1989-04-01), Sollami
patent: 4899637 (1990-02-01), Caruso
patent: 4904148 (1990-02-01), Larsson
patent: 4959958 (1990-10-01), Nishikawa et al.

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