EP 0134754 B1 19880525 - METHOD AND DEVICE FOR DRIVING THE SEALING ELEMENTS OF A PACKAGING MACHINE
Title (en)
METHOD AND DEVICE FOR DRIVING THE SEALING ELEMENTS OF A PACKAGING MACHINE
Publication
Application
Priority
CH 417783 A 19830729
Abstract (en)
[origin: US4599850A] A packing machine for making filled and sealed bags from superposed wrapper sheets, has a pair of cooperating sealing rollers for providing longitudinal seams on the superposed wrapper sheets passed therebetween; a mechanism for rotating unidirectionally the sealing rollers in first and second consecutive steps for providing the longitudinal seams in two consecutive length portions, each corresponding to one-half of the predetermined length; a pair of cooperating sealing shoes movable towards and away from one another for assuming, respectively, a sealing position to provide a transverse seam on the superposed wrapper sheets and an idling position; and a mechanism for moving the sealing shoes, while in the sealing position, codirectionally with the travelling direction of the wrapper sheets during a period in which one of the two steps is performed and for moving the sealing shoes, while in the idling position, against the travelling direction during a period in which the other of the two steps is performed.
IPC 1-7
IPC 8 full level
B65B 9/02 (2006.01); B65B 51/26 (2006.01); B65B 63/02 (2006.01); B65B 65/02 (2006.01)
CPC (source: EP US)
B65B 65/02 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0134754 A2 19850320; EP 0134754 A3 19860212; EP 0134754 B1 19880525; CH 660864 A5 19870529; DE 3471461 D1 19880630; JP S6034316 A 19850221; US 4599850 A 19860715
DOCDB simple family (application)
EP 84810335 A 19840706; CH 417783 A 19830729; DE 3471461 T 19840706; JP 14705584 A 19840717; US 63601484 A 19840730