Paper cutter

Cutting – With work immobilizer – Means to clamp work

Reexamination Certificate

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Details

C083S485000, C083S614000

Reexamination Certificate

active

10919889

ABSTRACT:
A paper cutter comprising a pair of four-joint link array mechanisms disposed in parallel between a paper holding member and a base, wherein pivotal links adjacent between the respective four-joint link array mechanisms are disposed to intersect with each other and to be slanted in directions opposite each other; in association with pivotal movements of the pivotal links, connecting links move in opposition to each other in a longitudinal direction; a downward operation force of the paper holding member acts as a pulling force on the respective connecting links; vertical movement of the paper holding member is constantly maintained in a parallel state with respect to the base; and a substantially uniform pressing force is imparted in a longitudinal direction of the paper holding member in cooperation with the vertical movement of the paper holding member.

REFERENCES:
patent: 3973459 (1976-08-01), Stowe
patent: 5287783 (1994-02-01), Mori
patent: 5524515 (1996-06-01), Boda
patent: 6079307 (2000-06-01), Mori
patent: 7011008 (2006-03-01), McLean et al.
patent: 2003/0010176 (2003-01-01), Chiang
patent: 0691189 (1996-01-01), None
patent: 3113953 (2000-09-01), None

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