(19)
(11) EP 2 243 708 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
27.04.2011 Bulletin 2011/17

(43) Date of publication:
27.10.2010 Bulletin 2010/43

(21) Application number: 09158691.7

(22) Date of filing: 24.04.2009
(51) International Patent Classification (IPC): 
B65B 13/30(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA RS

(71) Applicant: Sund Birsta AB
85125 Sundsvall (SE)

(72) Inventor:
  • Nilsson, Lennart
    820 77 Gnarp (SE)

(74) Representative: Löfgren, Jonas et al
Bjerkéns Patentbyrå KB Box 1274
801 37 Gävle
801 37 Gävle (SE)

   


(54) Strapping unit and method


(57) A strapping unit (1) comprising main punch members (11a, 11b), a security punch member (21), main die members (31a-d) forming a first and a second main jaw and security die members (41a, 41b) forming a first and a second auxiliary jaw. The punch members are displaceable to and fro between a retracted position and an advanced punching position. The jaws are moveable towards and away from each other between a retracted open position and an advanced active position, and the auxiliary jaws are moveable in relation to the main jaws. The main die members and the main punch members are arranged to co-operate so as to cut mutually interlocking incisions in overlapping portions at the ends of a loop of metal strap received in the strapping unit. The security die members and the security punch member are arranged to co-operate so as to cut security incisions in said overlapping metal strap portions.