Patent ID: 7448189
Filing Date: 2008-11-11
Classification: B29C,B29K,B29L,B65B

Abstract:
1. A filling apparatus comprising: (a) forming rings, respectively disposed at a plurality of positions spaced along a traveling path of a web-like packaging material, for deforming the web-like packaging material into a tubular shape, wherein the forming rings effect the deforming incrementally as the web-like packaging material moves downstream along the traveling path; (b) a longitudinal sealing device for longitudinally sealing opposite side edges of the tubular shaped packaging material; (c) a moving mechanism for moving one of said forming rings along the traveling path, in the direction of travel of the packaging material; (d) an overlap quantity detection device for detecting an overlap quantity of opposite side edges of the packaging material; and (e) overlap quantity adjustment processing means for causing the moving mechanism to move the one forming ring in the direction of travel of the packaging material according to the detected overlap quantity, thereby regulating the overlap quantity.