To provide a structure member for a vehicle body that is able to hinder a change in a cross-sectional shape in the event of collision and is able to reduce an amount of CO2 emission.SOLUTION: A structure member (10) includes a member body (11) and a reinforcing member (12). The member body (11) includes two vertical walls (112, 113), a top plate (111), and two flanges (114, 115). The reinforcing member (12) is joined to the top plate (111) and the vertical wall (112, 113). The reinforcing member (12) includes a first reinforcing layer (121) and a second reinforcing layer (122). The first reinforcing layer (121) is made of resin. The resin has a specific gravity of 0.05 or more and 1.00 or less. The second reinforcing layer (122) is made of a fiber-reinforced resin. The second reinforcing layer (122) is laid over the first reinforcing layer (121). The first reinforcing layer (121) is disposed between the member body (11) and the second reinforcing layer (122) and has a thickness (t1) greater than a thickness (t2) of the second reinforcing layer (122).SELECTED DRAWING: Figure 2
【課題】衝突時における断面形状の変化を抑制するとともに、CO2排出量を低減することが可能な車体用の構造部材を提供する。【解決手段】構造部材(10)は、部材本体(11)と、補強材(12)とを備える。部材本体(11)は、2つの縦壁(112,113)と、天板(111)と、2つのフランジ(114,115)とを含む。補強材(12)は、天板(111)及び縦壁(112,113)に接合される。補強材(12)は、第1補強層(121)と、第2補強層(122)とを含む。第1補強層(121)は、樹脂からなる。樹脂は、0.05以上1.00以下の比重を有する。第2補強層(122)は、繊維強化樹脂からなる。第2補強層(122)は、第1補強層(121)に積層される。第1補強層(121)は、部材本体(11)と第2補強層(122)との間に配置され、第2補強層(122)の厚み(t2)よりも大きい厚み(t1)を有する。【選択図】図2
STRUCTURE MEMBER
構造部材
2025-04-02
Patent
Electronic Resource
Japanese
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