Linear actuator control system

Details Linear actuator control system Linear actuator control system

1989-06-14

1992-04-07

Chen, Jose V.

Chairs and seats

Laterally folding or collapsing back

One-piece bottom and back

297361, B60N 202

Patent

active

051021935

ABSTRACT:
A linear actuator control system (10) as applied to a chaise lounge (12) having a seat back (14) pivotally hinged to a seat portion (16). The actuator (20) includes a piston assembly (46) mounted within a cylinder assembly (48) for controlled movement through a position control assembly (50). A rotatable valve assembly (172) mounted within the piston (66) prevents the flow of hydraulic fluid through a passageway (88) in the piston to selectively lock the piston (66) in position within the cylinder (96). A cam assembly (174) translates linear movement of a cable (244) into rotational movement by the interaction of a cam follower (216) and a cam member (214) having an opening (224) formed therein that interacts with the cam follower (216).

REFERENCES:
patent: 3236515 (1966-02-01), Ackerman
patent: 3246868 (1966-04-01), Martens et al.
patent: 3471140 (1969-10-01), Ballard
patent: 3477550 (1969-11-01), Suzuki et al.
patent: 3528532 (1970-09-01), Moskow
patent: 3963101 (1976-06-01), Stadelmann et al.

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