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US 5,400,509 AGranted
Folding knife with hidden frame and method of assembly
OwnerWalter W. Collinsinventor
Life of this patent
Estimating the term…
Abstract
A folding knife having an elongated, unitary blade carrier which is received within a blade carrier cavity of a unitary molded handle. The metal construction of the blade carrier provides a rigid, hidden frame structure for strengthening the knife. The combination of the unitary handle and unitary blade carrier allow for simplified construction. Covers are also provided in the handle for concealing a blade pivot pin.
Claims11
A folding knife, comprising
- an elongated blade having a cutting edge;
- an elongated unitary blade carrier having a substantially U-shaped cross-section portion and defining a blade cavity, said blade being pivotally connected to said blade carrier for movement with respect to said blade carrier;
- said blade being moveable from a retracted blade position, wherein said blade is received within said blade cavity of said blade carrier, to an extended blade position, wherein said blade is extended from said blade carrier;
- a longitudinally extending unitary handle defining a blade carrier cavity and a blade opening in communication with said blade carrier cavity, said blade carrier being fixedly received within said blade carrier cavity of said handle, such that said blade extends outwardly from said handle through said blade opening when in said extended position;
- an elongated lockbar pivotally connected to said blade carrier for automatically pivoting between a locking position, for engaging and locking said blade in said extended position, to a release position, for allowing said blade to be pivoted to said retracted position;
- and
- an elongated spring member having one end thereof fixed by said handle and the other end thereof extending into said blade cavity of said blade carrier for engaging said lockbar and urging said lockbar towards said locking position.
4 more elements
A folding knife, comprising
- an elongated blade having a cutting edge;
- an elongated blade carrier having a substantially U-shaped cross-section portion and defining a blade cavity, said blade being pivotally connected to said blade carrier for movement with respect to said blade carrier;
- said blade being moveable from a retracted blade position, wherein said blade is received within said blade cavity of said blade carrier, to an extended blade position, wherein said blade is extended from said blade carrier;
- a longitudinally extending handle defining a blade carrier cavity and a blade opening in communication with said blade carrier cavity, said blade carrier being fixedly received within said blade carrier cavity of said handle, such that said blade extends outwardly from said handle through said blade opening when in said extended position;
- and
- locking means attached to said blade carrier for automatically locking said blade in said extended position when said blade is pivoted to said extended position.
3 more elements
A method of assembling a folding knife, comprising:
- providing an elongated blade having a cutting edge;
- providing an elongated blade carrier having a substantially U-shaped cross-section portion and defining a blade cavity and a first pin opening;
- providing a handle defining a blade carrier cavity and a second pin opening;
- inserting said blade carrier in said blade carrier cavity of said handle such that said first and second pin openings are substantially co-axially aligned;
- and
- inserting a pivot pin into said first and second pin openings for securing said blade, said blade carrier and said handle together, such that said blade may pivot with respect to said blade carrier and said handle.
3 more elements
Dependencies are inferred from the claim text.