초록 ▼

A door is provided that has a first outer skin and a second outer skin. A first and second outer skins are separated by a frame to form a hollow core between the frame and the outer skins. The outer skins have molded potions that extend into the space between the outer skins. An expandable spacer is

A door is provided that has a first outer skin and a second outer skin. A first and second outer skins are separated by a frame to form a hollow core between the frame and the outer skins. The outer skins have molded potions that extend into the space between the outer skins. An expandable spacer is connected to the first and second skins to hold the first and second skins a predetermined distance apart. The expandable spacer has a plurality of elongated members having a width. The elongated members are each oriented substantially perpendicular to the first and second outer skins. The expandable spacer has a plurality of expandable core liners extending between the elongated members. The expandable core liners support the elongated members with respect to the first and second outer skins in a perpendicular direction. The elongated members and the expandable core liners have a reduced width portion formed therein that corresponds to the molded portion of the outer skins.

대표청구항 ▼

[ What is claimed is:] [1.] An expandable spacer core having an expanded form and a collapsed form with the spacer core having the same width in both forms comprising:a plurality of elongated members which are generally parallel to one another;a plurality of expandable core liners extending between

[ What is claimed is:] [1.] An expandable spacer core having an expanded form and a collapsed form with the spacer core having the same width in both forms comprising:a plurality of elongated members which are generally parallel to one another;a plurality of expandable core liners extending between said elongated members;each of said expandable core liners being foldable along a fold line located generally in the middle thereof and having a pair of end portions secured to a pair of adjacent elongated members;said expandable core liners being arranged lengthwise in end to end relationship in rows which are spaced apart;each of said expandable core liners being stretchable about the fold line to permit variable spacing between said elongated members when the core is in its expanded form;said spacer core having a reduced length when in said collapsed form and an extended length when in said expanded form while maintaining a uniform width.