Cutlery – Cutting tools – Plural cooperating blades
Patent
1978-06-28
1980-08-26
Peters, Jimmy C.
Cutlery
Cutting tools
Plural cooperating blades
76104A, B26B 1328, B25B 706
Patent
active
042188210
ABSTRACT:
A tool of the nature of scissors, tongs, pliers or pincers is provided having a pair of lever arms pivotably attached together by a pivot pin, each having holder means at one end and tool-functional means at the other end on opposite sides of the pivot pin, for pivotable manipulative engaging movement of the tool-functional means by the holder means, comprising first and second lever arms, the first lever arm having a through slot receiving the second lever arm; the second lever arm having a central portion extending within the slot and a pivot pin immovably fixed to and extending through the central portion thereof and projecting outwardly on each side of the central portion; the projecting portions of the pivot pin defining pivot points for the pin; the pivot points of the pivot pin being cold-pressed into the walls of the first pivot arm within the slot, thereby defining in the walls cold-formed pivot sockets conforming in shape to the pivot point in a manner to pivotably mount the second lever arm on the first lever arm in the slot, for free pivoting movement with respect thereto guided and constrained by the walls of the slot.
A process is also provided for assembling such a tool, first inserting the second lever arm into the through slot of the first lever arm, and then cold-pressing the walls of the slot inwardly against the pivot points of the pivot pin so as to force the pivot points into the walls of the slot, and define the pivot sockets therein.
REFERENCES:
patent: 1886271 (1932-11-01), Hoke
patent: 2305156 (1942-12-01), Grubel
patent: 3828515 (1974-08-01), Galgoczy
patent: 4099315 (1978-07-01), Pudenz
Mo och Domsjo Aktiebolag
Peters Jimmy C.
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