(19)
(11) EP 1 944 131 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.07.2008 Bulletin 2008/30

(43) Date of publication A2:
16.07.2008 Bulletin 2008/29

(21) Application number: 08103713.7

(22) Date of filing: 14.06.2006
(51) International Patent Classification (IPC): 
B25C 5/02(2006.01)
 B25C 5/16(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 17.06.2005 JP 2005177441
03.08.2005 US 705225 P

(62) Application number of the earlier application in accordance with Art. 76 EPC:
06012294.2 / 1733848

(71) Applicant: ACCO Brands USA LLC
Lincoln, IL 60069-3640 (US)

(72) Inventors:
  • Kandasamy, Balaji
    Naperville, IL 60565 (US)
  • Harris, Mark
    McHenry, IL 60050 (US)
  • Kirby, David
    Lemont, IL 60439 (US)
  • Eaton, Edward T.
    Wheaton, IL 60187 (US)
  • Papesh, David J.
    Channahon, IL 60410 (US)
  • Mathews, Brian W.
    Waterman, IL 60556 (US)

(74) Representative: Beattie, Alex Thomas Stewart 
Forrester & Boehmert Pettenkoferstrasse 20-22
80336 München
80336 München (DE)

   


(54) Stapler


(57) A stapler (1) movable between a rest position and a stapling position and having a front end (6) and a rear end (8). The stapler (1) includes a base (2), a staple magazine (50) coupled to the base (2) and configured to hold staples, and a driver blade (27) operable to drive staples out of the staple magazine (50) during stapling operations. The stapler (1) further includes an elastic member (20) coupled to the driver blade (27) and operable to move the driver blade (27) during stapling operations. The elastic member (20) utilizes potential energy to move the driver blade (27) during stapling operations. The driver blade (27) is positioned above the staple magazine (50) when the stapler (1) is in the rest position and the magazine (50) is extendable from the front end (6) of the stapler (1) to allow a user to load staples in the magazine (50). The stapler (1) is configured such that only the potential energy of the elastic member (20) can operate the driver blade (27) during stapling operations.







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