Blade lock mechanism for folding knife
AssigneeBenchmade Knife Co., Inc.
InventorJames S. Weatherly
Life of this patent
Estimating the term…
Abstract
A liner lock folding knife with an improved liner lock mechanism which can be manufactured satisfactorily by mass production techniques and conventional machine tools. A locking face surface engaged by a contact end of a locking finger is a concave partial cylinder whose central axis of curvature is located in a position offset with respect to the blade, in the direction toward the side of the handle from which the locking finger extends. The concave surface of the locking face has a radius of curvature smaller than the radius of curvature of the path of the contact end of the locking finger.
Claims13
A liner lock folding knife comprising:
- (a) a handle;
- (b) a blade hating a side defining a blade plane and including a locking face consisting principally of a concave surface having an axis of curvature oriented approximately parallel with said blade plane;
- (c) a blade pivot interconnecting said blade with said handle and defining a blade pivot axis substantially normal to said blade plane, said blade being movable about said blade pivot axis, between a folded position and an extended position;
- and
- (d) a locking finger located in said handle and having a contact end engaging said locking face and holding said blade in said extended position.
Dependencies are inferred from the claim text.