Knife having effectively changeable blades
OwnerHsing Tai Lininventor
Life of this patent
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Abstract
A utility knife includes a carrier slidably received in a housing and having one or more orifices, and a blade disposed between the carrier and the housing. A latch has one or more pins extended through the orifices of the carrier, to engage into the blade and to retain the blade to the carrier, and for allowing the blade to be moved relative to the housing by the carrier. A spring may bias the latch against the carrier, to engage the pins of the latch into the blade. A button may selectively disengage the pins of the latch from the blade, to allow the blade to be removed from the carrier and to be replaced with new blades.
Claims10
A utility knife comprising:
- a housing,
- a carrier slidably received in said housing, and including at least one orifice formed therein,
- at least one blade disposed between said carrier and said housing, and including at least one notch formed therein,
- a latch including at least one pin extended through said at least one orifice of said carrier, to engage into said at least one notch of said at least one blade, and to retain said at least one blade to said carrier, and for allowing said at least one blade to be moved relative to said housing by said carrier with said at least one pin of said latch,
- a first spring biasing means for biasing said latch against said carrier, to engage said at least one pin of said latch into said at least one notch of said at least one blade, and
- means for disengaging said at least one pin of said latch from said at least one blade, to allow said at least one blade to be removed from said carrier.
Dependencies are inferred from the claim text.