| 摘要 |
<p>LINER FOR INTERSECTING CROSS BORE AND EDGE BORE OF FOAM-FILLED METAL SKINNED DOOR Prior to foaming, a unitary molded plastic liner or dam for the lockset cross bore and edge bore of a foamfilled metal skinned insulated door is installed between the metal skins in registration with accurately located pre-punched skin openings. The edge bore lining extension of the device is inserted into a preformed opening of the wooden stile for positioning the device. The device prevents insulating foam from entering the cross bore or intersecting edge bore is the subsequent foaming operation. Significant reinforcement is also provided between the metal skins of the door to prevent buckling of the skins during the installation of door hardware.</p> |
