Locking mechanism for folding devices
AssigneeContraption Collection LLC
InventorDavid C. Van Dyke
Life of this patent
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Abstract
Designs and methods of operation for balitools such as balisongs, butterfly knives, and baliscissors. Two cylindrical locking pins that connect the handles and the tool or blade(s) have semicylindrical protuberances that are trapezoidally arranged. This enables both the use of tapered handles and smooth rotation of the handles with respect to the tool or blade(s) while requiring only a single button assembly to switch between different modes such as pocket mode, in which the handles are locked covering the tool or blade(s); bali mode, in which the tool or blade(s) can swing freely relative to the handles (and, for baliscissors, the scissor blades are locked together); and, for baliscissors, scissors mode, in which each scissors blade is locked to one of the handles.
Claims14
A balitool comprising:
- two handles;
- at least one tool;
- and
- two pins for connecting the handles to the at least one tool;
- wherein a circumference of each pin comprises:
- four first semicylindrical protuberances trapezoidally arranged around the circumference, each said semicylindrical protuberance starting at a first base of the pin and extending parallel to an axis of the pin toward a second base of the pin;
- and
- four second semicylindrical protuberances, each second semicylindrical protuberance colinear with one of the first semicylindrical protuberances.
Dependencies are inferred from the claim text.