Closure fasteners – Bolts – Swinging
Patent
1983-10-03
1986-01-14
Smith, Gary L.
Closure fasteners
Bolts
Swinging
16114R, 24298, 70 93, 74544, 296146, 292264, 292DIG21, 292DIG27, 292DIG32, E05C 908
Patent
active
045642303
ABSTRACT:
Door-swing restraint apparatus for a pair of latched doors closing an end opening of a cargo box comprises a chain or cable link connected between margins of the doors so that a person actuating a bar to release door latches will not be injured by freight items which bear against the door. One end of the link is fixed in the marginal edge of one door, the other end being fixed to a lever arm which can be selectably engaged with or disengaged from a lateral bracket on the latch bar of the other door, only when the arm is rotated out of its horizontal transport position into the vertical. Rotation of the bar due to torque exerted by a freight item pressing against the door is limited by a stop pin carried by the bar engaged in a slot in a door-mounted journal. The opening swing of the door is limited to a few centimeters as the link becomes taut and the lever arm remains horizontal, visually signalling the hazard.
The lever arm is formed with a side-opening right-angle slot engageable with a pin in the latch bar bracket. In another embodiment the arm carries the pin and the bracket sidewalls are slotted.
REFERENCES:
patent: 755551 (1904-03-01), Richardson
patent: 864559 (1907-08-01), Rinald
patent: 3544154 (1970-12-01), Ford
patent: 4170376 (1979-10-01), Banerjea
Ailes Curtis
Gall Lloyd A.
Smith Gary L.
LandOfFree
Restraint apparatus for cargo box doors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Restraint apparatus for cargo box doors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Restraint apparatus for cargo box doors will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-427784