Package strapping machine

Details Package strapping machine Package strapping machine

1988-03-31

1989-07-25

Sipos, John

Package making

Partial cover application

Band or tube

53582, 100 26, 100 33PB, B65B 1306, B65B 1318

Patent

active

048501794

ABSTRACT:
A package strapping machine is capable of strapping a package with an adjusted, gentle force by welding ends of a thermoplastic strap. The machine is provided with a strap-elevating member in proximity to a strap-receiving element mounted on a pivotal member. Overlapping ends of a thermoplastic strap are looped around the strap-receiving element and the package, and are then welded under the strap-receiving element. The strap-receiving element is then withdrawn from between an under surface of the package and the welded portion of the strap. The strap-elevating member elevates the welded portion of the strap, slackened due to gentle tightening, from a point below to a point above the height of the strap-receiving element, with the result that the slackened, welded portion of the strap is held above the strap-receiving element as it returns to its original position. The strap thus does not impede the movement of the strap-receiving element.

REFERENCES:
patent: 3749622 (1973-07-01), Sato
patent: 3771436 (1973-11-01), Sato
patent: 3914153 (1975-10-01), Sato

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