Motor driven stapler

Details Motor driven stapler Motor driven stapler

1993-07-09

1995-12-12

Rada, Rinaldi I.

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

227155, 227120, B25C 516

Patent

active

054742226

ABSTRACT:
In the course of the upward turning movement of the magazine, the lowermost sheet of staples is taken from the staple cartridge as the feeding member is slidably displaced in the forward direction. Since the thrusting force given by the tension spring is sufficiently larger than the frictional resistance present between the lower surface of the lowermost sheet of staples and the feeding member, each sheet of staples can be more reliably taken from a staple cartridge. As the magazine is turned in an upward direction, a feeding member is displaced in the forward direction by the resilient force of a tension spring, and a contact portion on the feeding member comes in contact with the rear end of the lowermost sheet of staples.

REFERENCES:
patent: 4281785 (1981-08-01), Brooks
patent: 4623082 (1986-11-01), Kurosawa
patent: 4720033 (1988-01-01), Olesen
patent: 4993616 (1991-02-01), Yoshie et al.
patent: 5009355 (1991-04-01), Akizawa et al.
patent: 5029745 (1991-07-01), Akizawa et al.
patent: 5076483 (1991-12-01), Olesen
Ferrara, "Staple Stack Separator", Xerox Disclosure Journal, vol. 12, No. 6, Nov. 1987, pp. 297-298.

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