Title: Door hardware with positive torque

Abstract: A hollow keeper housing is secured to the header or sill of a door of a truck trailer for receiving a generally arcuate camming finger disposed at the end of a rotatable vertical lock rod. The camming finger and keeper housing are designed so that when force is applied against a latched door, a relatively flat surface of the camming finger is tangent with the inner camming surface of the hollow keeper housing at a point located a distance from a plane parallel to the line of force and passing through the axis of rotation of the lock rod, the distance providing a torque in a latching direction.

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Inventors: Ringe, Stephen J. (Detroit, MI, US)

Application Number: 910493
Filing Date: 1978-05-30
Publication_date: 1980-11-11
Assignee: Fruehauf Corporation (Detroit, MI)
Primary Class(es): 292/218
Other Classes:
US Patent Ref:

1466528	Aug, 1923	Holmes	292/241.
1772177	Aug, 1930	Dake	292/241.
3039837	Jun, 1962	Poe	292/241.
3806173	Apr, 1974	Sweda	292/218.
4029349	Jun, 1977	Sweda et al.	292/218.

Other Refs:
Primary Examiner: Moore, Richard E.
Assistant Examiner:
Attorney: