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Title: Door hardware
Claims: What is claimed is: 1. In combination with a door frame structure defining a door opening and including a sill, a header and jambs, and a door hinged thereto, particularly for a cargo vehicle body or the like, fastening means for the door comprising a rod rotatably supported on and extending transversely of the door and projecting beyond a free edge thereof at a position spaced from the hinged edge of the door, a generally cylindrical keeper abutment portion supported on the frame structure and extending parallel to the rod and located at a position which when the door is closed is close to the projecting portion of the rod and in an overlapping axially offset relation thereto, characterized by a hook-like locking cam secured to and extending laterally from the rod and rotatable by the rod into and out of overengaged holding relation with respect to the keeper abutment portion when the door is at and near the closed position, said cam having a free end which when the door is closed is farther from the rod and from the keeper abutment portion than the distance between the rod and the side of the keeper abutment portion farthest from the rod, said locking cam having a camming inner surface extending angularly non-radially from the free end of the cam toward the rod and terminating at an arcuate holding portion which is concentric with the axis of the rod but of a radius substantially exceeding that of the rod, the radius of the keeper abutment portion being substantially shorter than that of said arcuate holding portion, the cam being fast on the rod, and an operating handle attached to the rod and swingable to and from the door to rotate the cam into and out of overengaged relation, further characterized in that when the handle is fully moved toward the door and the cam is in its normal fully overengaged holding position, said concentric holding portion of the camming surface extends toward the free end of the cam for a substantial distance beyond the position of contact between the cam and the keeper abutment portion. 2. In combination with a rectangular frame structure defining a door opening and including a sill, a header, jambs, a door hinged to one of the jambs, and means for securing the door in closed position, particularly for a cargo vehicle body or the like, means for counteracting distortion of the doorframe structure including a box-like stiffening rib member extending parallel to the hinge axis at a position spaced therefrom for substantially the full length of the free edge of the door and secured to the door at a plurality of positions, characterized by anti-rack portions carried by said rib member and interengageable when the door is closed with coacting anti-rack portions carried by the sill and header, said anti-rack portions comprising pin and socket-type parts interengageable along lines perpendicular to the plane of the door opening and including a pair of such parts coacting with the sill and another pair coacting with the header, including a rigid member secured in and projecting from each end of said rib, the member at one end overlying the sill and at the other end overlying the header, each of said projecting ends carrying one half of said paired pin and socket-type parts. 3. A combination as defined in claim 2 wherein separate rigid members are provided at each end, each such member having an aperture therein defining the socket part. Other info: Inventors: Ringe, Stephen J. (Detroit, MI, US) Application Number: 566237 Filing Date: 1975-04-09 Publication_date: 1976-11-02 Assignee: Fruehauf Corporation (Detroit, MI) Primary Class(es): 292/241 292/67, 292/218, 292/DIG32, 292/DIG55 Other Classes: US Patent Ref:
Other Refs:
Primary Examiner: Frazier, Roy D. Assistant Examiner: Bonck, Rodney H. Attorney: Harness, Dickey & Pierce |
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