Patent ID: 8578997
Filing Date: 2013-11-12
Classification: B65B,Y10T

Abstract:
1. A strap tightening device for securing a heat-weldable plastic strip which is disposed around a package, the strap tightening device comprising a housing and a single clamping device which fixes the plastic strip, and a welding plate which vibrates with respect to the housing in order to weld the plastic strip, the welding plate comprising a tensile force support device which is disposed in a plane extending along a longitudinal direction of the plastic strip, wherein the welding plate is mounted in a ram which is moveable for selectable engagement with the plastic strip and wherein the tensile force support device acts on a first side of the welding plate and a holding element is provided on a second side of the welding plate opposite the first side, which holding element, together with the tensile force support device, holds the welding plate in the ram.