Band feeding and tightening apparatus for strapping machine

Package making – Partial cover application – Band or tube

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Details

100 29, 100 32, B65B 1322, B65B 1318, B65B 1306

Patent

active

049109456

ABSTRACT:
A strapping apparatus advances a band around an object to be strapped and then retracts and tightens the band against the object. Retraction of the band is performed by a driven roller. A touch roller is displaceable toward the driven roller to press the band thereagainst. The outer periphery of the driven roller comprises a flexible high friction material, and a circumferentially extending low friction material embedded in the high friction material and normally projecting radially outwardly therebeyond. When the band travels against the low-friction material it encounters little resistance. When the touch roller pushes the band against the driven roller, the low-friction material is pushed radially inwardly, enabling the band to contact and be driven by the high-friction material.

REFERENCES:
patent: 2326670 (1943-08-01), Patterson, Jr.
patent: 2786672 (1957-03-01), Humphner
patent: 3023963 (1962-03-01), Crosby et al.
patent: 3077293 (1963-02-01), Watkins
patent: 3132785 (1964-05-01), Kunz
patent: 3752058 (1973-08-01), Lems
patent: 4383881 (1983-05-01), Sakaki
patent: 4444097 (1984-04-01), Wehr et al.
patent: 4683017 (1987-07-01), Figiel et al.

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