Masco Industries, Inc.

Hans-Dieter Paulsen

Shaped connecting piece for connecting structural profile members

An apparatus for producing a longitudinal multi-component frame element includes a longitudinal mold within which is positioning at least one longitudinal member to form a first component of the frame element. A second component of the frame element is formed by introducing into the mold a foamable and curable material such as polyurethane which cures to form a rigid plastic component connected to the longitudinal member. Before formation of the rigid plastic component, the longitudinal mold is bent in a direction opposite to a direction of anticipated warping of the frame element that would be caused by internal stresses therein. Thus, the frame element initially is formed within the mold to be of a bent configuration, and after removal of the frame element from the mold, the internal stresses transform such initial bent configuration into a straight or rectilinear configuration.

Apparatus for production of longitudinal multi-component frame element

A longitudinal multi-component frame element is formed by positioning at least one longitudinal member to form a first component of the frame element within a longitudinal mold. A second component of the frame element is formed by introducing into the mold a foamable and curable material such as polyurethane which cures to form a rigid plastic component connected to the longitudinal member. Before formation of the rigid plastic component, the longitudinal mold is bent in a direction opposite to a direction of anticipated warping of the frame element that would be caused by internal stresses therein. Thus, the frame element initially is formed within the mold to be of a bent configuration, and after removal of the frame element from the mold, the internal stresses transform such initial bent configuration into a straight or rectilinear configuration.

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Zwingenberg, Germany

Hans-Dieter Paulsen