Folding knife
AssigneeFiskars Inc.
InventorsGeorge C. Sessions, Bradford J. Parrish
Life of this patent
Estimating the term…
Abstract
A foldable hand tool, such as a pocket folding knife, includes a knife blade and a handle for storing the knife blade, and a pivotally biased lock bar to secure the blade in extended position. The knife also includes a pair of non-slip ridges mechanically interlocked with the handle in a region of the handle proximate to the blade when the blade is in stored position. The ridges, which project outwardly from the handle, are contoured to permit suitable engagement by the fingertips of a user's hand, thereby reducing slippage when the blade is extended from the stored position. The handle is formed of two keyed sections firmly assembled together by cooperation of a lock bar biasing spring with coaxially aligned holes formed in the keyed regions of the handle sections.
Claims22
A pocket folding knife comprising:
- a knife blade;
- a first handle section;
- an opposed second handle section joined to the first handle section to form a handle having a cavity in which the blade is received when in stored position;
- each handle section having a pair of oppositely facing inner and outer surfaces;
- an elongated lock bar pivotally connected to the handle for movement between a first position in which the blade is locked in extended position, and a second position to permit pivotal movement of the blade to the stored position;
- an elongated spring, biasing the lock bar into the first position, the spring having a free end effectively in contact with the lock bar and a distal end;
- and
- means for removably joining the handle sections wherein such means comprises the distal end of the elongated spring.
A pocket folding knife comprising:
- a knife blade;
- a handle for storing the knife blade, the handle having oppositely facing inner and outer surfaces and a plurality of apertures formed through one of the outer surfaces to an inner surface respective to the one of the outer surfaces in a region of the handle proximate to the blade when the blade is in stored position;
- and
- a ridge extending from the inner surface respective to the one of the outer surfaces through the apertures and from the one of the outer surfaces by a predetermined distance.
A pocket folding knife comprising:
- a knife blade;
- a handle having oppositely facing outer surfaces and spaced apart inner surfaces forming a handle cavity for storing the knife blade;
- and
- at least one ridge mechanically interlocked with the handle and effectively in contact with one of the inner surfaces in a region of the handle proximate to the blade when the blade is in stored position, the ridge projecting outwardly from a respective one of the outer surfaces by a predetermined distance.
A method for making a folding knife of the type including a blade and a handle, a pair of first and second opposed handle sections forming a handle cavity for storing the blade, a lock bar pivotally connected to the handle, a spring removably connecting the handle sections and biasing the lock bar to lock the blade in extended position, each handle section having oppositely facing inner and outer surfaces and a plurality of apertures formed therethrough in a region of the handle proximate to the blade when the blade is in stored position, each handle section further including a ridge mechanically interlocked with a respective handle section and extending therefrom by a predetermined distance, the method comprising the steps of:
- molding the first and second handle sections;
- molding the ridge onto each of the handle sections so that the ridge is effectively in contact with a respective one of the inner surfaces, extending through a respective one of the plurality of apertures, and projecting from a respective one of the outer surfaces by a predetermined distance;
- bringing the handle sections together and inserting the spring into coaxially aligned holes of the handle sections to removably join the handle sections and form the handle cavity;
- and
- assembling the lock bar and blade.
Dependencies are inferred from the claim text.