A folding knife includes a handle, a blade assembly, a stop member, and a locking arm. The blade assembly is rotatably interconnected with the handle and is moveable between an extended position and a closed position. In the extended position, the locking arm exerts a bias force to wedge a releasable wedge member laterally between the stop member and the blade assembly to inhibit a transition of the folding knife out of the extended position. In the extended position, an unlocking force applied to the locking arm displaces the releasable wedge member from a space between the blade assembly and the stop member to permit the transition of the folding knife out of the extended position.

A blade changeable knife includes a first holding member having a first holding portion and a first connecting portion and a second holding member having a second holding portion and a second connecting portion. The second holding portion and the second connecting portion is interconnected by a flexible portion. The second connecting portion is disposed on the first connecting portion. The second holding portion and the first holding portion are disposed oppositely. The second holding member is adapted to be flexed to a holding position and a releasing position in which the first and the second holding portions are disposed apart from each other. Further, a lock is movably engaged with the second holding member. The lock is disposed at a first position when the second holding member is in the holding position and at a second position when the second holding member is in the releasing position.

A cushion back cutter includes finger holes that are shaped to make blade changes and adjustments faster and easier. The cushion back cutter includes a center plate with a recess forming a blade pocket for holding a slotted razor blade. The center plate includes a finger opening for removing a slotted razor blade. The finger opening, which may be non-circular, crosses an upper wall of the blade pocket that supports the blade. A first side plate attached to a first side of the center plate covers the blade pocket in the center plate, and includes a blade window for removing a slotted razor blade from the blade pocket of the center plate. A second side plate is attached to a second side of the center plate, which also includes a finger opening.

Particular embodiments of the inventive technology relate to apparatus and methods for cutting multi-layered material to reconfigure it so it may be used to construct sub-compartments in a larger storage container. The inventive technology, in particular embodiments may feature one or more of the following: dual blades, staggered blades (where one blade is more forward than another), a blade(s) angled upwards and forwards, blades separated in a left-right direction, prong recesses to accept trailing tips of blades, a rearwardly angled handle and/or a removed material ejection ramp, in conjunction perhaps with other features such as, e.g., a guide prong. One or more of such features may appear in the various manifestations of a defluting cutter or through cutting apparatus, whether guided or unguided, and/or manual or powered.

A cushion back cutter is formed from a first side plate, a second side plate, and a center plate between the first and second side plates. The center plate includes a slot that forms a blade holding pocket with a bottom opening to receive one or more blades. A blade clamp is inserted into the blade clamp opening of the first side plate, and a blade clamp fastener tightens to cause the blade clamp to press the blades against the second side plate to hold the blades in position. The center side plate forms a row guide for guiding the blades of the cutter between adjacent rows of carpet tufts. The row guide may include a region having continuous notches, which tend to move the carpet tufts out of the path of the blades to avoid shearing them.

A scraper includes a cover, a first clamping member, a second clamping member, and a locking device. The cover has a connection portion and an insertion protrusion. The first clamping member has a first through groove, and the second clamping member has a second through groove. The locking device has a sliding portion slidably arranged in the first through groove and the second through groove. The connection portion of the cover is detachably connected to the side of the first clamping member opposite to the second clamping member, and the insertion protrusion inserts through the first through groove and the second through groove and is detachably coupled with the second clamping member.

The invention relates to a knife with a housing (11) and with a blade holder (13) for holding a blade (17), the blade holder (13) being movable between a safety position in which the blade (17) is inaccessible within the housing (11) and a cutting position in which the blade (17) projects at least partially out of the housing (11), the cutting position being defined by the interaction of at least one stop surface (32a, 32b) associated with the housing (11) and at least one counterpart surface (23a, 23b) associated with the blade holder (13).

A scraping tool includes a first holding member having a first through-groove between a first holding portion and a first connecting portion. A second holding member includes a second through-groove between a second holding portion and a second connecting portion. The second connecting portion is connected to the first connecting portion to permit the second holding member to sway relative to the first holding member between a holding position and an extended position. A locking device includes first and second abutting portion respectively abutting against the first and second holding member and a sliding portion slideably extending through the first and second through-groove. The locking device is movable relative to the first and second holding member between a locking position in which the second holding member is in the holding position and a release position in which the second holding member is movable to the extended position.

A utility knife includes a blade carrier configured to releasably couple to a blade; and a blade retention mechanism coupled to the blade carrier. The blade retention mechanism includes a first actuator; and a second actuator coupled to the first actuator, wherein an actuation of the first actuator permits the second actuator to move from a locked position to an unlocked position for the blade.

A lame, for example a bread lame, is provided which may be used to score bread dough. The lame may include blade holders that may securely hold a razor blade in a curved or a straight profile, and may cover one or more corners of the razor blade. The blade holders may be securable to and removable from a handle of the bread lame. The lame may include a removable cover for the blade holders to cover exposed edges of the razor blades.