Retaining assembly for retaining releasably a door at a desired

Details Retaining assembly for retaining releasably a door at a desired Retaining assembly for retaining releasably a door at a desired

1994-10-04

1996-09-03

Meyers, Steven N.

Closure fasteners

Braces

292262, E05C 1744

Patent

active

055517404

ABSTRACT:
A retaining assembly includes a hollow casing mounted on a door. The casing has a horizontal wall portion formed with a through-hole and an upright rotary shaft which has an end portion that extends out of the casing through the wall portion and which is rotatable relative to the casing. A coupling rod has a first end portion connected pivotally to a door frame and a second end portion connected to the end portion of the shaft so as to, drive rotatably the shaft in a first direction when the door moves relative to the door frame to an open position. A pin has an end portion which is normally biased to extend out of the casing via the through-hole. An elongated positioning plate has a first end portion and a second end portion which is coupled releasably and selectively to the end portion of the shaft such that the first end portion is displaced by a variable initial angle, corresponding to the open position, with respect to the pin when the door is in a closed position. The positioning plate is rotatable with the shaft in the first direction to a position where the pin engages the first end portion of the positioning plate by a friction force sufficient to arrest releasably rotation of the shaft in a second direction opposite to the first direction so as to retain releasably the door at the open position.

REFERENCES:
patent: 3259936 (1966-07-01), Sheridan
patent: 3909877 (1975-10-01), Christy et al.
patent: 3911526 (1975-10-01), Christy et al.
patent: 3996642 (1976-12-01), Atkins
patent: 4286412 (1981-09-01), Stevens
patent: 4803754 (1989-02-01), Roberts
patent: 4878265 (1989-11-01), Nesbitt

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