Connection structure of a framework
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United States of America Patent
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Aug 19, 1997
Grant Date -
N/A
app pub date -
Feb 7, 1996
filing date -
Feb 8, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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