Patent ID: 6568317
Filing Date: 2003-05-27
Classification: B65B

Abstract:
A tensioning unit for a strapping machine for the tensioning and sealing of a band guided around an item which is to be strapped, comprising:a tensioning head; a housing accommodating the tensioning head, the tensioning head including a tensioning device for tensioning a band in a tensioning direction during a tensioning operation, and a clamping and sealing device for clamping and sealing the band, the tensioning head being mounted for a movement relative to the housing in a band-running direction, which is counter to the tensioning direction, in order to allow a displacement of the tensioning head relative to the housing in the band-running direction toward the end of a respective tensioning operation; and a band guide arranged in the housing downstream of the clamping and sealing member as seen in the band-running direction, the band guide being subdivided into a front band-guide part and a rear band-guide part, the front band-guide part being displaceable together with the tensioning head relative to the housing in the band-running direction, and the rear band-guide part being moveable away transversely to the band-running direction by the front band-guide part when in contact with the front band-guide part and when the latter is moved in the band-running direction.