Patent ID: 8087916
Filing Date: 2012-01-03
Classification: B29C,B60R,B62D

Abstract:
1. A cavity filler for a hollow structure, comprising: a) a holding jig comprising a plate-like base body having a front side with a periphery, a back side with a periphery, a planar holding part that is provided in a predetermined width in the form of a ring on the periphery of one of said front and back sides of said base body, said planar holding part extending from the periphery of the one of said front and back sides of said plate-like base body to an inner peripheral end of the planar holding part, a step part of predetermined height that protrudes in the form of a ring at the inner peripheral end of said planar holding part, and an attaching means to attach and fix said plate-like base body, wherein said planar holding part contains a plurality of holes that are open from the front side to the back side of the planar holding part in a net or lattice pattern; and b) a portion of a foamable material positioned in the planar holding part of the holding jig, wherein foamable material is molded and packed into at least a portion of the holes so as to hold the portion of foamable material in place on the holding jig, the planar holding part supports one side of the portion of foamable material, and the step part supports an inner peripheral surface of the portion of foamable material and is configured to assist in selectively directing the portion of foamable material as the foamable material foams and expands generally towards interior walls of a cavity of the hollow structure.