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US 2002/0189302 A1Published application
Hinge lock safety cuff
OwnerBrent L. Andersoninventor
Life of this patent
Estimating the term…
Abstract
Folding handcuffs include a lockable hinge which permits folding the assembly for compact storage but automatically locks into a rigid assembly when fully unfolded. The hinge operates by the movement of a locking bar into locking groove(s) via a tensioning mechanism when the hinge components are aligned in the unfolded, extended configuration. The lockable hinges can also be used to connect the components of a variety of common tools including shovels, saws and the like.
Claims20
A lockable hinge, comprising:
- a center hinge rod;
- two hinge assembly components, each comprising a hinge platform and at least one hinge paw attached thereto, said hinge paws each forming a cylindrical opening which is rotationally attached to said center hinge rod so that said hinge paws are adjacent to each other and can rotate in opposite directions;
- retaining means to keep said hinge assembly components in position, with said cylindrical openings of said hinge paws rotationally attached to said hinge rod;
- and
- mechanical means for automatically locking said hinge paws to said center hinge rod when said hinge assembly components are rotated so that they form a single plane.
2 more elements
A hinged, foldable pair of handcuffs comprising two separate handcuff wrist bracelets connected by a lockable hinge, said hinge comprising:
- a central hinge rod and two hinge assembly components rigidly attached to said bracelets, each comprising a hinge platform connected to one of said bracelets, a first hinge component comprising a double hinge paw and a second hinge component comprising a single hinge paw, wherein each hinge paw contains a cylindrical opening therein and the hinge components are arranged with said double hinge paw and said single hinge paw intertwined, with the cylindrical openings therein mounted upon said center hinge rod;
- mechanical means for retaining said hinge paws in position upon said hinge rod;
- and
- mechanical means for locking both of said hinge paws in position upon said center hinge rod when said hinge components are rotated into the same plane, thus locking said handcuffs into a rigid extended position.
1 more element
Dependencies are inferred from the claim text.