Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – With mounting or supporting means
Patent
1998-02-19
2000-02-15
Johnson, Blair M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
With mounting or supporting means
160209, 296 50, E05D 1506
Patent
active
060241551
ABSTRACT:
A truck trailer door safety door stop is provided for preventing a truck trailer door from accidentally falling closed. The door stop may be retrofitted onto a conventional truck trailer door of the roll up type including a plurality of hinged panels which ride along rails by means of roller wheels. The door stop includes a glide member for guiding a bottom panel of the roll up door along the rail without engagement therewith. When the door is in a fully opened position, the disengaged bottom panel is pulled out of alignment with the rail and separated therefrom by means of a spring. In response to a sudden forward movement of the truck, which would normally cause such a door to accidentally close, the door will be forced directly rearward and be prevented from falling down the rail. A guide bar may be provided for supporting the bottom panel in a positive lock open position.
REFERENCES:
patent: 1621669 (1927-03-01), Johnson
patent: 2045060 (1936-06-01), Wheatley
patent: 2066558 (1937-01-01), Dautrick
patent: 5429170 (1995-07-01), Nogaki
Hackler Walter A.
Johnson Blair M.
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