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US 8,940,119 B2Granted
Process and apparatus for producing beam member
AssigneeToray Industries, Inc.
InventorsTatsuya Hanawa, Tamotsu Suzuki
Life of this patent
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AssigneeToray Industries, Inc.
InventorsTatsuya Hanawa, Tamotsu Suzuki
Estimating the term…
A process for producing a beam member formed by a reinforcing fiber base material which has a web portion and at least a pair of flange portions extending to both sides via at least a branching point from the web portion, at a cross-sectional surface orthogonal to a longitudinal direction of the beam member, and by a shaped filler which fills a gap having a wedge shape formed at the branching point, is provided. The shaped filler is produced by: (A) a filler supply process for supplying a filler member configured by reinforcing fibers; (B) a preshaping process for providing a preshaped filler having at least a wedge projection portion, by pressurizing the filler member by a preshaping mold; and (C) a filler deforming process for providing a shaped filler by deforming the preshaped filler.
A process for producing a beam member formed by a reinforcing fiber base material which has a web portion and at least a pair of flange portions extending to both sides via at least a branching point from the web portion, at a cross-sectional surface orthogonal to a longitudinal direction of the beam member, and by a shaped filler which fills a gap having a wedge shape formed at the branching point, and wherein a thickness of the reinforcing fiber base material changes in a longitudinal direction of the beam member and also a curvature radius of the reinforcing fiber base material at the branching point changes in the longitudinal direction of the beam member along a change of the thickness, and wherein the shaped filler is produced by at least the following production processes (A) to (C):
The process for producing a beam member according to claim (1), wherein, in the process (B), a filler member is preshaped by using a preshaping mold that has a mold (x) having a concave portion made of a straight line portion and a wedge portion, a mold (y) having a convex portion which can be engaged with the straight line portion of the mold (x), and a mechanism for changing a relative position of the mold (y) to the mold (x), and by passing the filler member through a gap between the mold (x) and the mold (y).
The process for producing a beam member according to claim (1), wherein, in the process (A), a reinforcing fiber sheet having a shape of which a width changes in a longitudinal direction is used as the filler member.
The process for producing a beam member according to claim (3), wherein, in the process (A), the reinforcing fiber sheet is folded in a wave shape at least three times to a width direction of the reinforcing fiber sheet.
The process for producing a beam member according to claim (3), wherein, a sheet comprising reinforcing fiber to which an adhesive resin in a particle shape, a fiber shape, or a sheet shape is partly added at least on one surface is used as the reinforcing fiber sheet.
The process for producing a beam member according to claim (3), wherein, a prepreg that is formed by impregnating a matrix resin in advance in reinforcing fibers which form a sheet is used as the reinforcing fiber sheet.
A process for producing a beam member formed by a reinforcing fiber base material which has a web portion and at least a pair of flange portions extending to both sides via at least a branching point from the web portion, at a cross-sectional surface orthogonal to a longitudinal direction of the beam member, and by a shaped filler which fills a gap having a wedge shape formed at the branching point, wherein the shaped filler is produced by at least the following production processes (A) to (C):
A process for producing a beam member formed by a reinforcing fiber base material which has a web portion and at least a pair of flange portions extending to both sides via at least a branching point from the web portion, at a cross-sectional surface orthogonal to a longitudinal direction of the beam member, and by a shaped filler which fills a gap having a wedge shape formed at the branching point, wherein the shaped filler is produced by at least the following production processes (A) to (C):
Dependencies are inferred from the claim text.