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US 12,304,092 B2Granted
Folding knife safety mechanism
AssigneeMilwaukee Electric Tool Corporation
InventorScott M. Hangartner
Life of this patent
Estimating the term…
Abstract
A folding knife with a locking mechanism is provided. The folding knife includes a locking spring that interfaces with a recess in the blade to bias the blade from being pivoted out of the handle. A button interfaces with the locking spring to actuate the locking spring interfacing with the blade.
Claims20
A folding knife comprising:
- a handle comprising a top and a bottom opposite the top;
- an internal cavity defined by the handle;
- a blade rotatably coupled to the handle, the blade rotating with respect to the handle into and out of the internal cavity between a retracted position and an extended position out of the bottom of the handle, the blade defining a recess;
- a sliding lock slidably coupled to the handle;
- and
- a locking spring coupled to the handle, a first end of the locking spring is positioned within the recess when the blade is in the retracted position, wherein the sliding lock slides in a first direction with respect to the handle to disengage the locking spring from the recess, the locking spring comprising a displacement wall surface that is angled with respect to the first direction, wherein when the sliding lock is moved in the first direction, the interface between the sliding lock and the displacement wall surface biases the first end of the locking spring upward such that the first end of the locking spring is positioned outside of the recess.
3 more elements
A folding knife comprising:
- a handle;
- an internal cavity defined by the handle;
- a blade rotatably coupled to the handle, the blade rotating with respect to the handle about an axis into and out of the internal cavity between a retracted position and an extended position;
- a recess defined by the blade along an outer edge of the blade and spaced a distance from the axis, the recess defining a locking wall surface that extends radially away from the axis;
- a sliding lock slidably coupled to the handle;
- and
- a locking spring coupled to the handle, a first end of the locking spring interfaces with the recess when the blade is in the retracted position, the locking spring comprising a second end opposite the first end and a contiguous body that extends from the first end to the second end, wherein a surface of the sliding lock abuts an edge of the body of the locking spring, and wherein the second end is rigidly coupled to the handle, the locking wall surface interfacing against the first end of the locking spring to bias the blade from rotating out of the handle.
4 more elements
A folding knife comprising:
- a handle comprising a top and a bottom opposite the top;
- an internal cavity defined by the handle;
- a blade rotatably coupled to the handle, the blade rotating with respect to the handle into and out of the internal cavity between a retracted position and an extended position out of the bottom of the handle, the blade defining a recess;
- a locking spring coupled to the handle, a first end of the locking spring is within the recess when the blade is in the retracted position, the blade biasing the locking spring upward when the blade actuates from the extended position to the retracted position;
- and
- a sliding lock slidably coupled to the handle, wherein a surface of the sliding lock abuts an edge of the locking spring.
3 more elements
Dependencies are inferred from the claim text.