Movable or removable closures – Safety means responsive to obstruction to closure – Closure drive stopping or reversal
Patent
1990-11-27
1992-01-28
Kannan, Philip C.
Movable or removable closures
Safety means responsive to obstruction to closure
Closure drive stopping or reversal
49139, 49280, 49360, E05F 1500
Patent
active
050833979
ABSTRACT:
In an automatic door operating system, there is employed a so-called fail-safe means which controls a door closing device. The door closing device functions to enforcedly shift the door from its half-latch position to its full-close latched position. The fail-safe means is so arranged as to deal with such a possible undesirable matter that due to, for example, a foreign thing accidentally caught between the door and the vehicle body, the door is forced to stop during its shifting from the half-latch position to the full-close latched position. Upon this door stopping, a control switch is turned in the other direction by an operator (viz., driver). With this, the door closing device is operated in a reversed manner for a time given by a timer, so that the door is moved back to a position near the half-latch position thereby to facilitate the removal of the foreign thing.
REFERENCES:
patent: 4561691 (1985-12-01), Kawai et al.
patent: 4640050 (1987-02-01), Yamagishi et al.
patent: 4855653 (1989-08-01), Lemirande
patent: 4862640 (1989-09-01), Boyko et al.
patent: 4887205 (1989-12-01), Chou
Kannan Philip C.
Ohi Seisakusho Co. Ltd.
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