초록 ▼

A door panel having an insulating foam core and a pair of rigid inner and outer skins preferably formed of steel or other metal. The skins have side flanges with hook portions that mechanically interlock. The interlocking flanges provide a method of mechanically attaching the inner and outer skins o

A door panel having an insulating foam core and a pair of rigid inner and outer skins preferably formed of steel or other metal. The skins have side flanges with hook portions that mechanically interlock. The interlocking flanges provide a method of mechanically attaching the inner and outer skins of the panel to each other by utilizing the compression and spring back of the core during assembly. A resilient thermal barrier element is interposed between the interlocking flanges to prevent them from making direct contact with each other while at the same time sealing the joint, the thermal barrier element also including a cushioning bead engagable with a similar bead of another door panel to provide a weather seal therebetween. The method of making the panel is also disclosed.

대표청구항 ▼

A panel comprising a planar core of generally rectangular configuration formed of resilient polymeric foam and having its opposite faces engaged and covered by a pair of flat, rectangular skins formed of rigid sheet material; each skin having a pair of inturned flanges extending at generally right a

A panel comprising a planar core of generally rectangular configuration formed of resilient polymeric foam and having its opposite faces engaged and covered by a pair of flat, rectangular skins formed of rigid sheet material; each skin having a pair of inturned flanges extending at generally right angles to the plane of such skin along opposite longitudinal edges thereof; said flanges of the respective skin being provided with hook portions reversely turned with respect to each of such flanges and interlocking said skins together with said foam core therebetween; each hook portion of one skin interlocking with a hook portion of the other skin to prevent separation of said skins apart; whereby, unhooking of said interlocking hook portions would require movement of said skins towards each other with resultant planar compression of said core, and such unhooking action is therefore opposed and resisted by said core; and elongated thermal barrier members of resilient, flexible material interposed between the interlocking hook portions of said skins along each of the longitudinal edges of said panel to prevent direct contact between said skins; at least one of said thermal barrier members having an elongated, integral, and deformable bead portion disposed externally of the interlocking hook portions of said flanges to provide a resilient cushion for sealingly engaging a similar bead portion of a second panel disposed adjacent to said first-mentioned panel.