Direct drive positive locking panel fastener
AssigneeStandard Keil Hardware Manufacturing Co.
InventorFrank F. Loikitz
Life of this patent
Estimating the term…
Abstract
The panel fastener includes an externally driven crank having a first pin slidably engaging a first cam surface formed on a hook member. A second pin fixed on said hook member slidably engages a second cam surface having a fixed position. Rotation of said crank on center axis induces cam action causing said hook member to first rotate and then retract. Thereby, the hook member when located on one panel can engage a pin fixed on an independent second panel and join and draw together said panels. Alignment of the pins and crank axis prevents loosening or disengagement of the joined panels without intentional reverse operation of the crank.
Claims20
A panel fastener for drawing together and joining a first and second panel at an interface, comprising:
- a moving member movably connected to said first panel, said moving member having a length adapted to extend a portion of said moving member across said interface;
- a crank shaft and a crank connected for rotation with said crank shaft;
- first cam means connected to said crank for rotary motion therewith and first cam follower means for engaging said moving member with said crank, rotation of said crank causing one of direct rotary drive of said moving member and relative motion between said first cam means and said first cam follower means, said moving member moving in a first prescribed motion determined directly by said crank;
- a first fixed member connected to said first panel;
- second cam means and second cam follower means for engaging said moving member with said first fixed member, motion of said moving member causing relative motion between said second cam and said second cam follower means, said moving member moving in a second prescribed motion determined in part by said second cam means and the contours of said second cam follower means and in part by said first cam means and the contours of said first cam follower means;
- a second fixed member connected to said second panel;
- means for releasably engaging said second fixed member with said portion of said moving member when said portion extends across said interface, said extending across said interface being a portion of said first prescribed motion of said moving member.
Dependencies are inferred from the claim text.