Patent ID: 11919178
Assignee: FISKARS BRANDS, INC.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A knife comprising:
a blade; and
a handle assembly rotatably coupled to the blade, defining a longitudinal axis, and including
a handle frame,
a side frame coupled to the handle frame,
a locking arm coupled to the side frame by a living hinge and movable between a locked position and an unlocked position, the living hinge biasing the locking arm toward the handle frame to the locked position, the locking arm defining an arm width in a direction perpendicular to the longitudinal axis and an arm length in a direction parallel to the longitudinal axis, and
a guard coupled to the side frame and overlaying at least a portion of the locking arm, the knife defining a guard width in a direction perpendicular to the longitudinal axis and a guard length in a direction parallel to the longitudinal axis, the guard width being a distance between a bottom side of the guard and a top side of the locking arm,

wherein a ratio of the guard width to the arm width at any given position along the guard is greater than thirty percent (30%), and
wherein a ratio of the guard length to the arm length is greater than seventy-five percent (75%).