Panel construction for a wall or roll-up door system

Details Panel construction for a wall or roll-up door system Panel construction for a wall or roll-up door system

1992-12-18

1994-02-08

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Roll type

403337, 160236, 160235, E06B 908

Patent

active

052841995

ABSTRACT:
A roll-up or curtain type door or panel wall for use in large doorways, the door having an improved support apparatus, an improved spring mounting mechanism, and a unique bearing block which also functions to support the door as it is rolled up. The roll-up door has a substantially stronger hollow hexagonal barrel assembly which is less susceptible to flexural stress, and a spring mounting arrangement which allows the springs to shrink or grow longitudinally as the door is rolled up or down. The barrel assembly is mounted on pivoting support means allowing the barrel assembly to move away from and toward the guide tracks as the door is rolled up and down, whereby the variation in diameter of the barrel assembly does not affect the performance of the door. Interlocking bearing blocks are mounted on the outside side edges of the roll-up door to provide support as the door is rolled onto the barrel assembly and also to provide an edge seal to prevent air from flowing around the edges of the door when it is in its lowered position. A novel seam configuration for releasably joining adjacent panels of the roll-up door is disclosed as part of the invention.

REFERENCES:
patent: 443324 (1890-12-01), Kinnear
patent: 2350287 (1944-05-01), Michelman
patent: 3129793 (1964-04-01), Ferrell
patent: 3315429 (1967-04-01), Swanson
patent: 4570404 (1986-02-01), Knudson
patent: 4741142 (1988-05-01), Otto et al.
patent: 5172744 (1992-12-01), Finch et al.

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