Patent ID: 8202455

Claim:
Press for pressing glue-coated wood chips for forming a beam which has at least one substantially U-shaped cross-sectional portion, comprising: oppositely arranged lower and upper tools, which each have a plane main surface, which are parallel to and facing each other and which are vertically movable, towards and away from each other, at least one of the upper and lower tools comprising a master tool, which carries the plane, horizontal main surface in which an elongate groove with side surfaces which extend perpendicularly to the main surface is provided, an elongate forming tool with parallel side surfaces, which is vertically displaceable in the groove of the master tool in and opposite to the pressing direction perpendicularly to the plane main surface of the oppositely arranged tool, and two horizontally displaceable lateral pressing tools, which are arranged between the plane main surfaces of the tools on either side of the groove, wherein the side surfaces of the forming tool and the groove [are located at a distance from one another, along at least a part of their cross section, for forming a gap between them and wherein each comprise at least one carrier surface, which is facing in the pressing direction of the forming tool, a forming insert which extends along the whole length of the beam being placed in each gap in the area between the forming tool and the master tool and having a width that is slightly smaller than the width of the gap, so that it substantially fills out the width of the gap but is displaceable, in relation to both the forming tool and the master tool, wherein during pressing of the glue-coated wood chips, the forming inserts will move with the carrier surface of the forming tool and contribute to pressing together the wood chips, and wherein during retraction of the forming tool after the pressing has been completed, the forming inserts will be obstructed by the carrier surface of the master tool, thereby disengaging the beam from the forming tool.