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US 5,546,662 AGranted
Knife with lockable blade
AssigneeBuck Knives, Inc.
InventorsBrett P. Seber, Roy L. Helton, Jr.
Life of this patent
Estimating the term…
Abstract
The blade of a folding knife is pivoted on a D-shaped pivot axle which also serves to lock the side pieces and belt clip of the knife in place. A thumb pin used to open the blade is also D-shaped and press fit into place in the blade. The blade has transverse grooves at its base to aid in extracting the knife from a sheath. The blade is locked into place by a side-lock plate, which is held in place by ridges in the side pieces. The side pieces are preferably made of rigid plastic, but with soft inserts in the sides for improved gripping.
Claims8
A knife, comprising:
- a knife body having a first side piece and a second side piece, the second side piece being parallel to and separated from the first side piece, the first side piece and the second side piece having aligned pivot axle bores therethrough;
- a cylindrical pivot axle extending through the pivot axle bores;
- a blade pivotably supported on the pivot axle;
- a clip having an engagement region;
- and
- keying means for engaging the clip to the first side piece and for preventing the clip from rotating with respect to the first side piece, the keying means including
- a key on the pivot axle, and
- a keyway on the clip engagement region.
5 more elements
A knife, comprising:
- a blade having a top side and a bottom side;
- a first side piece;
- a second side piece lying parallel to, and spaced apart from, the first side piece, the side pieces each having a top side and a bottom side that respectively lie adjacent to the top side and the bottom side of the blade when the blade is in an open position;
- a pivot axle extending between the first side piece and the second side piece at a first end of the knife, the blade being supported on the pivot axle so that the blade may pivot from the open position to a closed position;
- a locking plate lying parallel to and between the first side piece and the second side piece, the locking plate being positioned between the first side piece and the blade when the blade is in the closed position, the locking plate having a first end adjacent to the pivot axle and a second end remote from the pivot axle;
- the first side piece having a raised first rim along the bottom side of the side piece adjacent to the second end of the locking plate, and
- the second side piece having a raised second rim along the top side of the side piece adjacent to the second end of the locking plate, the first rim and the second rim capturing the second end of the locking plate therebetween.
4 more elements
Dependencies are inferred from the claim text.