Composite material member, gap material, pultrusion device, and pultrusion method

A gap material which is provided in a gap of a composite material member formed by a plurality of fiber sheets extending along a longitudinal direction,

• the gap material having a wedge shape in a cross section cut in a plane orthogonal to the longitudinal direction and comprising
• a gap fiber sheet which includes reinforcement fibers oriented in a fiber direction different from the longitudinal direction;
• and
• gap reinforcement fibers oriented in the same fiber direction as the longitudinal direction.

A pultrusion device for pultruding a composite material member which includes a plurality of fiber sheets drawn in a drawing direction, the pultrusion device comprising:

• a preliminary molding tool which preliminarily molds a gap material which is provided in a gap formed by the plurality of fiber sheets drawn in the drawing direction,
• wherein the gap material has a wedge shape in a cross section cut in a plane orthogonal to the longitudinal direction and includes
• a gap fiber sheet which includes reinforcement fibers oriented in a fiber direction different from the drawing direction, and
• gap reinforcement fibers oriented in the same fiber direction as the drawing direction, and
• the preliminary molding tool preliminarily molds the gap material by causing the gap reinforcement fibers and the gap fiber sheet to be drawn along the drawing direction.

A pultrusion method of pultruding a composite material member while drawing a plurality of fiber sheets in a drawing direction, the pultrusion method comprising:

• a gap material preliminary molding step of preliminarily molding a gap material which is provided in a gap formed by the plurality of fiber sheets which is drawn in the drawing direction,
• wherein the gap material has a wedge shape in a cross section cut in a plane orthogonal to the longitudinal direction and includes
• a gap fiber sheet which includes reinforcement fibers oriented in a fiber direction different from the drawing direction, and
• gap reinforcement fibers oriented in the same fiber direction as the drawing direction, and
• in the gap material preliminary molding step, the gap reinforcement fibers and the gap fiber sheet are drawn along the drawing direction, whereby the gap material is preliminarily molded.