Paul A Graham

US Patent:

39711862, Jul 27, 1976

Filed:

Aug 13, 1975

Appl. No.:

5/604344

Inventors:

Steven E. Havelka - Playa del Rey CA
Paul L. Graham - Culver City CA
Carl L. Matschke - Canoga Park CA

Assignee:

Electronic Memories and Magnetics Corporation - Los Angeles CA

International Classification:

F16B 506

US Classification:

52753G

Abstract:

A wedge lock unit is disclosed for clamping a subsystem chassis with two outwardly extending spaced apart flanges to a system main frame, from which a single flange or tab extends outwardly. The wedge lock unit includes a stationary member which is fixedly attached to one of the flanges of the subsystem chassis. The stationary member has two opposite wedged or sloping sides along which two movable wedging members with mating sloping sides rest. A drive mechanism, in the form of a rotatable screw, is used to apply a force, resulting in a clamping force, which urges the movable wedging members toward the tab of the main frame, which is inserted between the wedge lock unit and the other flange of the subsystem chassis, until the tab becomes clamped between the movable wedging members of the wedge lock unit and the other flange of the subsystem chassis. Spring means are provided which produce a reaction force on the movable wedging members. The reaction force direction is opposite the clamping force direction.