Two-piece winding key for collapsible tubes

Details Two-piece winding key for collapsible tubes Two-piece winding key for collapsible tubes

1986-05-23

1987-03-31

Skaggs, H. Grant

Dispensing

Collapsible wall-type container

With wall-collapsing means

132 41R, B65D 3532

Patent

active

046536701

ABSTRACT:
A two-piece winding key for folding collapsible-wall tubes and similar containers having an elongated blade with a lengthwise slot, a U-shaped clip and a pivot made up of elements integrally molded with the blade and the clip. The pivot comprises a rod terminating in a head, a first cylinder terminating in a retainer, each of which is opposed to each other on opposite arms of the clip, and a second cylinder on an end of the blade. The second cylinder fits over the first cylinder, and the rod snaps into the interior of the first cylinder to form a smoothly operating and durable pivot. The first cylinder may also have an annular boss on its outside surface for a more snug fit with the second cylinder. The slot in the blade may be provided with teeth for engaging an end of a collapsible tube without slippage. The tube is folded up by rotating the blade about its lengthwise axis, using the clip as a handle. The clip pivots so that it surrounds the blade in a closed position to prevent the tube from unfolding.

REFERENCES:
patent: 1326893 (1919-12-01), Tresenberg
patent: 1941631 (1934-01-01), Socoloff
patent: 2089499 (1937-08-01), McFadden
patent: 2903162 (1959-09-01), Regan

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