Roller shutter rod of stable shape and method for its manufactur

Details Roller shutter rod of stable shape and method for its manufactur Roller shutter rod of stable shape and method for its manufactur

1991-03-01

1993-04-20

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 369, 428 3691, 160236, 160133, 160201, 160235, E06B 911, B32B 104

Patent

active

052041476

ABSTRACT:
The invention refers to a roller shutter rod of stable shape, consisting of an aluminum strip plastic-coated on one side at least in part, and roll-formed into a hollow section 18 with the coated side inwards, the hollow section featuring upper and lower connecting areas with double-layer aluminum strip and an inside wall 14 as well as an outside wall 13, said hollow section featuring for the increase of the longitudinal stiffness and durability of the roller shutter rod at least one contact point 15, at which at least two aluminum strip layers are bonded with one another.

REFERENCES:
patent: 4470444 (1984-09-01), Riexinger et al.
patent: 4723588 (1988-02-01), Ruppel
patent: 4972894 (1990-11-01), Machill
L. Dorn et al, "Beanspruchungsgerechte . . . Klebverbindungen", Kunststoffe 79, 1989, 6, pp. 491-499.
Hinterwaldner, "Hochleistungs . . . Verbindungsaufgaben", Fachbeitrag, Mar. 1987, pp. 61-62.
W. Wuich, "Grundlagen . . . Schmelzklebstoffen", GAK Dec. 1981, pp. 780-782.

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