The present invention generally relates to a compact utility cutter. Specifically, embodiments of the present invention relate to an everyday use compact utility knife apparatus with a retractable blade. Embodiments of the compact utility knife apparatus are further comprised of a thumb slider switch configured to control the position of the blade.

The present invention generally relates to a compact utility cutter. Specifically, embodiments of the present invention relate to an everyday use compact utility knife apparatus with a retractable blade. Embodiments of the compact utility knife apparatus are further comprised of a thumb slider switch configured to control the position of the blade.

A lockable tool with a sliding scale release is formed with a frame and a tool coupled to the frame with a locking mechanism to lock the tool into an extended or retracted configuration. A release mechanism is attached to a scale on the side of the frame. The scale is coupled to the frame. The tool is constructed such that sliding the scale along a longitudinal axis of the frame automatically unlocks the tool from the extended or retracted configurations. The tool can open and/or close automatically. The tool, such as a knife, can swing open or extend out a front opening in the frame.

A lockable tool with a sliding scale release is formed with a frame and a tool coupled to the frame with a locking mechanism to lock the tool into an extended or retracted configuration. A release mechanism is attached to a scale on the side of the frame. The scale is coupled to the frame. The tool is constructed such that sliding the scale along a longitudinal axis of the frame automatically unlocks the tool from the extended or retracted configurations. The tool can open and/or close automatically. The tool, such as a knife, can swing open or extend out a front opening in the frame.

A pocket knife includes a chassis that defines a cavity and a blade having a cutting edge. The blade has a retracted position in which the cutting edge is inside of the cavity and a deployed position in which the cutting edge is outside of the cavity. A recess in the chassis defines a base and a sidewall at an obtuse angle to the base. A pocket clip is engaged with the sidewall of the recess.

A pocket knife includes a chassis that defines a cavity and a blade having a cutting edge. The blade has a retracted position in which the cutting edge is inside of the cavity and a deployed position in which the cutting edge is outside of the cavity. A recess in the chassis defines a base and a sidewall at an obtuse angle to the base. A pocket clip is engaged with the sidewall of the recess.

A weight-actuated or inertially-actuated hand knife includes a handle body with a blade locking button that serves to lock or release a knife blade slidably contained within the handle body. The blade locking button is pressed through a hole in the handle body. One end of the blade locking button rests against a fixed part of a plate that rests on the handle body, and the other end of the button rests against a flexible strip-shaped part of the plate, which is bent towards the blade by default until the button is pressed. The blade includes a stepped end that can abut against the end of the flexible strip-shaped part of the plate. A stop protrudes from the blade and slidably engages a longitudinal cutout in the plate as the blade moves within the handle so as to prevent escape of the blade in both the extended and retracted positions.

A weight-actuated or inertially-actuated hand knife includes a handle body with a blade locking button that serves to lock or release a knife blade slidably contained within the handle body. The blade locking button is pressed through a hole in the handle body. One end of the blade locking button rests against a fixed part of a plate that rests on the handle body, and the other end of the button rests against a flexible strip-shaped part of the plate, which is bent towards the blade by default until the button is pressed. The blade includes a stepped end that can abut against the end of the flexible strip-shaped part of the plate. A stop protrudes from the blade and slidably engages a longitudinal cutout in the plate as the blade moves within the handle so as to prevent escape of the blade in both the extended and retracted positions.

A retractable knife, having a handle formed with an accommodating space which has an opening at one end of the handle; a side surface of the handle has a first sliding groove communicated with the accommodating space and a first rack corresponding to the first sliding groove; a blade is movably mounted in the accommodating space through the opening of the accommodating space; a second rack is arranged on the blade; a push button assembly is movably mounted on the first sliding groove and connected to the blade; the push button assembly can push the blade to move; the push button assembly has a gear engaged with the first rack and the second rack to form a speed enhancement transmission mechanism. A longer stroke of the blade during discharge and withdrawal can be achieved by a shorter stroke of the push button, thereby facilitating one-hand operation for convenient use.

A retractable knife, having a handle formed with an accommodating space which has an opening at one end of the handle; a side surface of the handle has a first sliding groove communicated with the accommodating space and a first rack corresponding to the first sliding groove; a blade is movably mounted in the accommodating space through the opening of the accommodating space; a second rack is arranged on the blade; a push button assembly is movably mounted on the first sliding groove and connected to the blade; the push button assembly can push the blade to move; the push button assembly has a gear engaged with the first rack and the second rack to form a speed enhancement transmission mechanism. A longer stroke of the blade during discharge and withdrawal can be achieved by a shorter stroke of the push button, thereby facilitating one-hand operation for convenient use.