| 摘要 |
<p>The invention relates to a blank for laminated beam plates, comprising an elongated piece of wood with a specific shape, including two planear lateral surface sections (2, 3) and a lower surface section (4) and an upper surface section connecting these. Said upper surface section comprises an elongated, ridge-shaped tip section (5), and, between each lateral surface section (2, 3) and the tip section (5), a first planar surface section (6; 9) to be glued and a second planar surface section (7; 10) to be glued and a planar intermediate surface section (8; 11) connecting these. Said first surface section (6; 9) and said second surface section (7; 10) are mutually parallel and the width a of said first surface section (6; 9) is equal to the width b of said second surface section (7; 10) and the width c of the intermediate surface section (8; 11) is half of the width a or b. In addition, the angle α between the intermediate surface section (8; 11) and said second surface section (7; 10) is equal to the angle of opening β of the ridge-shaped tip section (5), which is preferably in the range of 90 to 135°.</p> |
