Drive for a vehicle door

Details Drive for a vehicle door Drive for a vehicle door

1980-09-29

1982-08-31

Kannan, Philip C.

Movable or removable closures

Safety means responsive to obstruction to closure

Closure drive stopping or reversal

49110, 49334, 49338, E05F 1510

Patent

active

043465331

ABSTRACT:
Obstacle sensing apparatus for a pivotal door has a drive for operating the door between open and closed positions. Linkage is provided between the pivotal column which supports the door for swinging movement and a platform pivotally mounted on a fixed adjacent structure. When an obstacle is encountered the reactive force pivots the platform through the linkage and activates switches which reverse the drive. Elastic blocks keep the platform centered except when an obstacle is encountered.

REFERENCES:
patent: 1282128 (1918-10-01), Rosentreter
patent: 2223637 (1940-12-01), Newkirk
patent: 2564067 (1951-08-01), Karp
patent: 2606022 (1952-08-01), Vanderveer et al.
patent: 2751219 (1956-06-01), Dodge
patent: 4131830 (1978-12-01), Lee et al.

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