A food slicer, which may be used for cutting a pizza with a single blade, and other food, such as pancakes, with multiple blades includes a housing configured to be gripped by a user in a first tilted orientation in which only the first rotating blade touches a work surface, and in a second level orientation, in which all three blades touch the work surface. A first rotating blade is mounted in the housing offset along a longitudinal axis from second and third rotating blades, whereby the tripod arrangement enables a steady structure during non-use, and whereby the second and third rotating blades may be lifted off of the working surface, while the first rotating blade cuts the pizza.

A food slicer, which may be used for cutting a pizza with a single blade, and other food, such as pancakes, with multiple blades includes a housing configured to be gripped by a user in a first tilted orientation in which only the first rotating blade touches a work surface, and in a second level orientation, in which all three blades touch the work surface. A first rotating blade is mounted in the housing offset along a longitudinal axis from second and third rotating blades, whereby the tripod arrangement enables a steady structure during non-use, and whereby the second and third rotating blades may be lifted off of the working surface, while the first rotating blade cuts the pizza.

A saw sheath is provided which allows a saw to be inserted easily and smoothly, which prevents the inserted saw from easily falling out or rattling in the sheath, and which can suppress scraping-off of the inner wall by the blade tip of the saw caught by the inner wall. Storage structures of the saw sheath and a saw are also provided. The saw sheath (1) includes a flat sheath opening section (10) and a flat main sheath body (20), and a saw blade (41) is inserted into the main sheath body (20) via the sheath opening section (10). A pair of guide rollers (12) are provided at the entrance of the sheath opening section (10), on the left and right sides in the width direction of the entrance, and a grip penetration preventing section (15) is provided in the interior of the sheath opening section (10). The space from the guide rollers (12) to the grip penetration preventing section (15) constitutes an elastic grip-fitting space (16).

An electric utility knife having a blade which can facilitate manual precision cutting, at a singular consistent speed or varying speeds, without requiring the user to exert extreme or substantial manual pressure to cut through a material. The blade can be configured as a vibrating/oscillating/rotating blade to perform a majority of the cutting tasks. The user may simply guide the blade and exert minimal manual pressure on the knife. This can reduce the potential for injury and other repetitive motion stress injuries to a user. This can also facilitate greater cutting precision and can reduce cutting time.

A scalpel handle for holding a blade includes a handle member and a finger-operable actuator having a blade shield portion. The actuator is mounted upon the handle member for movement relative thereto between a first condition at which the blade shield portion covers the edge of the blade and a second condition at which the blade shield portion is disposed in out-of-the-way position so that by moving the actuator between the first and second conditions, the blade shield portion is moved between its blade-covering and its out-of-the-way positions. An over center spring is interposed between the actuator and the handle member so that upon movement of the actuator into its second condition, the blade shield portion is biased into the out-of-the-way position and so that upon movement of the actuator into its first condition, the blade shield portion is biased into the blade-covering position.

The present utility knife provides a uniquely improved safety mechanism that increases safety, reliability, and reduces the cost of manufacturing. A shield is locked over the blade by a strut braced between the shield and a stop within the housing. The strut is biased to the locked position by an integrally molded sinuous spring that is designed to force the strut into engagement with the stop and to force the shield to cover the blade, allowing just one cut per actuator pull. The stop structure checks the motion of the strut when locked and closely guides the movement of the strut when unlocked through use of an L-shaped channel. These features reduce the complexity of the safety knife and increase the reliability of the safety mechanism under rough conditions.

The present utility knife provides a uniquely improved safety mechanism that increases safety, reliability, and reduces the cost of manufacturing. A shield is locked over the blade by a strut braced between the shield and a stop within the housing. The strut is biased to the locked position by an integrally molded sinuous spring that is designed to force the strut into engagement with the stop and to force the shield to cover the blade, allowing just one cut per actuator pull. The stop structure checks the motion of the strut when locked and closely guides the movement of the strut when unlocked through use of an L-shaped channel. These features reduce the complexity of the safety knife and increase the reliability of the safety mechanism under rough conditions.

The present invention generally relates to a safety cutter. Specifically, embodiments of the present invention relate to a compact safety cutter apparatus with a retractable blade guard. Embodiments of the safety cutter apparatus are further comprised of an automatic blade guard release mechanism.

The present invention generally relates to a safety cutter. Specifically, embodiments of the present invention relate to a compact safety cutter apparatus with a retractable blade guard. Embodiments of the safety cutter apparatus are further comprised of an automatic blade guard release mechanism.

A knife sheath includes a receptacle and an attachment piece for suspending the knife sheath from a user. The knife sheath is provided with a collar which is detachably attached to the receptacle at an opening. An edge receiving portion of the collar is provided with a sharpener that imparts a sharpening action to a blade of a knife which is introduced into the receptacle. The receptacle and the collar are shaped to allow the collar and receptacle to be attached to each other in a first position and in an alternative second position such that the knife sheath is suitable for both left-handed and right-handed users.