Connection structure of a framework

Details Connection structure of a framework Connection structure of a framework

1996-02-07

1997-08-19

Friedman, Carl D.

Static structures (e.g., buildings)

Window or window sash, sill, mullion, or glazing

U-shaped channel formed of separate strips overlapping pane...

5220465, 5220457, 52204195, 52207, 522041, 5220469, 49501, E06B 3988

Patent

active

056575912

ABSTRACT:
The present invention provides a connection structure which can freely adjust a connection strength between each stile and rail without increasing the kinds of stiles and rails arranging a door. A door 1A is arranged by engaging connection convex parts 21A and 31A of an upper rail 20 and a lower rail 30 in a connection concave part of a stile 10. In this case, the strength of the connection part of the stile and rail is set by adjusting an engagement dimension of the connection convex parts 21A and 31A in the connection concave part 12A. When the doors of different connection strength are arranged, only adjusting the engagement dimensions is required without the need to manufacture and assemble stiles and rails of different shapes and so on for each strength; therefore the manufacturing cost is reduced with the kinds of stiles and rails required being reduced and each kind of door with different connection strength can be easily arranged.

REFERENCES:
patent: 3841572 (1974-10-01), Condoba
patent: 4295305 (1981-10-01), Shelver
patent: 4513554 (1985-04-01), Johnson et al.
patent: 4831804 (1989-05-01), Sayer
patent: 5477647 (1995-12-01), Yates, Jr.
patent: 5546714 (1996-08-01), Kenkel

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