FRAME MEMBER FOR VEHICLE

To provide a frame member for a vehicle that can effectively absorb a collision load.SOLUTION: A frame member 1 comprises a cylindrical main body part 10 and a lid part 30 arranged at a tip portion of the main body part 10. A cross sectional shape of the main body part 10 is polygonal. The main body part 10 has a plurality of wall portions 20 arranged adjacent to each other in a circumferential direction. The lid part 30 has a polygonal-shaped lid surface 31 covering the tip portion of the main body part 10 and a plurality joint pieces 40 protruding from a peripheral edge 31r of the lid surface 31. At least one pair of adjacent joint pieces 40 of the plurality of joint pieces 40 include a first joint piece 41 and a second joint piece 42. The first joint piece 41 is jointed to the outside of one adjacent wall part 20 of the plurality of wall parts 20. The second joint piece 42 is jointed to the inside of the other adjacent wall part 20 of the plurality of wall parts 20.SELECTED DRAWING: Figure 1 【課題】衝突荷重を効果的に吸収できる車両用フレーム部材を提供する。【解決手段】フレーム部材１は、筒状の本体部１０と、本体部１０の先端部に配置される蓋部３０とを備える。本体部１０の断面形状は多角形状である。本体部１０は周方向に隣り合う複数の壁部２０を有する。蓋部３０は、本体部１０の先端部を覆う多角形状の蓋面３１と、蓋面３１の周縁３１ｒから突出する複数の接合片４０とを有する。複数の接合片４０のうち、隣り合う少なくとも一組の接合片４０は、第一の接合片４１と第二の接合片４２とを含む。第一の接合片４１は、複数の壁部２０のうち、隣り合う一方の壁部２０の外側に接合される。第二の接合片４２は、複数の壁部２０のうち、隣り合う他方の壁部２０の内側に接合される。【選択図】図１