B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/119
B32B 3/10 (2006.01) B32B 3/14 (2006.01) B32B 17/04 (2006.01) B32B 19/00 (2006.01) E04C 2/292 (2006.01) E04B 1/76 (2006.01)
Patent
CA 2005496
The invention relates to a longitudinal lamella board (1) of binder fixed mineral wool, which is suitable as a core of a sandwich element having surface layers of e.g. thin sheet metal. The lamella board consists of adjacently disposed longitudinally directed rods (2), whose fibre planes form a right angle to the plane of the lamella board. The length of the rods is less than half of that of the lamella board and they are jointed to each other. The joints are distributed over the lamella board so as to eliminate their weakening effect on the resistance of the board. None of the joints is immediately next to any of the ends of the lamella board, when the board is being used as a one-field board with supports at the ends, or immediately next to a support line, when the board is being used as a multi-field board. None of the joints is preferably within the area a next to the ends or support lines between the ends, whereby a = L/(1.99 n), wherein L = the length of the lamella board or the span between support lines and n = the number of lamellas laterally in the lamella board. At a greater distance from the ends or the support lines, the required distance between the joints is less.
Brunila Esko
Heselius Lars
Gowling Lafleur Henderson Llp
Paroc Group Oy Ab
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