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    • 58. 发明专利
    • Device for tightening and sealing plastic packaging straps
    • AU2001272376B2
    • 2006-02-16
    • AU2001272376
    • 2001-04-21
    • CYKLOP GMBH
    • ZEIMETZ LEOSCHOLL DETLEFNOBER PETER
    • B65B13/22B65B13/18B65B13/32
    • The device according to the invention for tensioning and sealing plastic strapping bands for packages has a housing (11), a band channel (14) extending in the longitudinal direction of the strapping band (12), which is open on one side and which receives the band ends (19,20), which channel is limited on one of its side by a tensioning plate (16) and on its other side by a tensioning wheel (18) provided with a profiling, whereby the tensioning wheel and the tensioning plate can be abutted relatively to one another. So as to be able to exert a large tensioning force on the band ends even with a small abutment force between the tensioning wheel and the tensioning plate, without damaging the band by rotating the tensioning wheel, it is suggested by the invention that the profiling consists of first transverse profile grooves (27) running approximately in the axial direction of the tensioning wheel and of second circumferential profile grooves (29) running in the circumferential direction, whereby the transverse profile grooves comprise a smaller slot depth than the circumferential profile grooves. Tensioning teeth (30) are formed at the circumference of the tensioning wheel by this arrangement, which teeth penetrate up to the depth of the transverse profile grooves into the band even with a small abutment force between tensioning plate and tensioning wheel, and ensure a transfer of high tensioning forces.