초록 ▼

A three-dimensional structural member adapted for wide use as an industrial composite structural member such as an aircraft or other vehicle interior part. A reinforcing substrate fabric has a plurality of planar structural sections. The reinforcing substrate fabric serving as a core material is imp

A three-dimensional structural member adapted for wide use as an industrial composite structural member such as an aircraft or other vehicle interior part. A reinforcing substrate fabric has a plurality of planar structural sections. The reinforcing substrate fabric serving as a core material is impregnated or covered with a shape retention agent such as synthetic resin or ceramic material and then solidifed to form a predetermined three-dimensional structure or, alternatively, the reinforcing substrate fabric is unfolded to form a predetermined three-dimensional structure and then impregnated or covered with the shape retention agent. The three-dimensional structural member is characterized in that the reinforcing substrate fabric is formed of lengthwise continuously arrayed yarns. Fabric areas defined by a plurality of surfaces using a plurality of groups of yarns are integrally formed. At least one group of yarns are arrayed so that they are continuous in the direction of the length, with continuity between widthwise and/or obliquely extending linear portions in the fabric areas and curved or bent portions in the ends of the fabric areas. Alternatively, at least one group of yarns are arrayed so that they are continuous in the direction of the length while continuously forming loops, the yarns being interlaced with each other and/or with the other groups of yarns which are arrayed so that they are continuous in the direction of the length. The yarns are thus connected together.

대표청구항 ▼

A three-dimensional structural member comprising a plurality of planar structural sections intersecting to form a cross section having a plurality of legs, each leg corresponding to a respective one of said planar structural sections, said plurality of planar structural sections forming a reinforcin

A three-dimensional structural member comprising a plurality of planar structural sections intersecting to form a cross section having a plurality of legs, each leg corresponding to a respective one of said planar structural sections, said plurality of planar structural sections forming a reinforcing substrate fabric serving as a core material for said structural member, and a shape retention agent solidified around said reinforcing substrate fabric, said reinforcing substrate fabric comprising a plurality of fabric areas, each fabric area constituting one of said planar structural sections, said fabric areas being integrally formed by braiding means, each said fabric area comprising at least first and second groups of yarns, the first group of yarns being arrayed straight in a longitudinal direction of said three-dimensional structural member, the second group of yarns a plurality of times extending in each said fabric area widthwise or obliquely with respect to the longitudinal direction of said structural member, turning at one widthwise end of each said fabric area, returning widthwise or obliquely, reaching a boundary with another fabric area, interlacing at said boundary with yarns of said another fabric area, and further extending towards another widthwise end of said each fabric area, whereby said yarns of said second group are ultimately arrayed substantially in a lengthwise direction in said each fabric area and are interlaced with said first group of yarns.