Locking device for locking two elements that are articulated rel

Details Locking device for locking two elements that are articulated rel Locking device for locking two elements that are articulated rel

1992-07-10

1993-11-30

Crowder, Clifford D.

Chairs and seats

Movable back

Tiltable

2972161, 16324, 403110, 403328, B60N 202, B60N 248, E05D 1110

Patent

active

052659364

ABSTRACT:
A locking device is made of a casing having a substantially trapezoidal shape and a rod extending through the casing. The rod has a central portion and two side guides to permit the central portion to come into locking engagement with a toothed roller placed inside toothed triangular recesses of a V-shaped member. The V-shaped member has a top portion provided with a fork. One side of the V-shaped member is connected to an inner edge of the casing and the other side has a cutout with a lower rounded portion and an upper straight portion provided with a slope. The cutout cooperates with a cam comprising a flat portion and a finger.

REFERENCES:
patent: 4175301 (1979-11-01), Letournoux et al.
patent: 4382630 (1983-05-01), Weston
patent: 4789205 (1988-12-01), Pipore et al.
patent: 4805961 (1989-02-01), Garrod
patent: 5058240 (1991-10-01), Barda et al.
patent: 5150632 (1992-09-01), Hein

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