Cutlery – Holders for detachable blades – Pivoted part
Patent
1998-06-11
1999-08-03
Payer, Hwei-Siu
Cutlery
Holders for detachable blades
Pivoted part
301663, 30321, 30337, B26B 104
Patent
active
059309024
ABSTRACT:
A saw includes an elongated saw blade having a rear end portion which is formed with a hooked extension and a locking hole having a restricted entrance. The handle member has left and right side walls which confine a blade receiving space therebetween, and an insert slit for access into the blade receiving space. A pivot shaft extends transversely between the left and right side walls. The rear end portion of the saw blade is extendible into the blade receiving space via the insert slit so that the hooked extension hooks pivotally with the pivot shaft. A locking pin extends movably and transversely between the left and right side walls, and has a wider section with a cross-section larger than the restricted entrance but smaller than the locking hole, and a narrower section with a cross-section smaller than the restricted entrance. The locking pin is movable between an unlocking position, in which the narrower section is registered with the blade receiving space to permit movement of the locking pin into and out of the locking hole via the restricted entrance, and a locking position, in which the wider section is registered with the blade receiving space to engage the locking hole and to lock the saw blade to the handle member.
REFERENCES:
patent: 156369 (1874-10-01), Millspaugh
patent: 601480 (1898-03-01), Powell
patent: 3900950 (1975-08-01), Collins
patent: 4169312 (1979-10-01), Mar
patent: 4425709 (1984-01-01), Quenzi
patent: 4750267 (1988-06-01), Boyd
patent: 5092045 (1992-03-01), Boyd, Jr. et al.
patent: 5722168 (1998-03-01), Huang
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