PROBLEM TO BE SOLVED: To provide a frame member which is constituted of a CFRP-made member and metal attachment members connected with the CFRP-made member, and which has enhanced joining strength and has high strength against a bending load though it is light in weight.SOLUTION: A frame member 1 comprises: a tubular member 10 made of CFRP; and metal attachment members 20, 30 which are connected with at least one end of the tubular member. The attachment member comprises: an opening through which the tubular member is inserted; and protrusion parts extending along an edge part of the opening to protrude inward in the opening. The protrusion parts comprise: a first protrusion part; and a second protrusion part formed on a side opposite to the first protrusion part with respect to the opening. The tubular member comprises: first and second groove parts corresponding to the first and second protrusion parts, respectively. The attachment part is connected with the tubular member, while the first and the second protrusion parts are made to engage with the first and the second grooves, respectively. The first protrusion part and the first groove part are offset toward a center in a longitudinal direction of the tubular member, with respect to the second protrusion part and the second groove part.SELECTED DRAWING: Figure 1
【課題】CFRP製部材とこれに結合された金属製の取付部材で構成されたフレーム部材において、結合強度を向上させて軽量でありながら曲げ荷重に対する強度が高いフレーム部材を提供する。【解決手段】CFRP製の管状部材10と、この管状部材の少なくとも一端部に金属製の取付部材20、30が結合したフレーム部材1であって、前記取付部材は、前記管状部材が挿通された開口部と、この開口部の縁部に沿うように延びて前記開口部内方に突出した凸部を有し、前記凸部は、第1凸部と、前記開口部に対して前記第1凸部と反対側に形成された第2凸部を備え、前記管状部材は、前記第1,第2凸部に夫々対応する第1,第2溝部を有し、前記第1,第2凸部を前記第1,第2溝部に夫々係合させて前記取付部材が前記管状部材に結合され、前記第1凸部と前記第1溝部が前記第2凸部と前記第2溝部に対して前記管状部材の長手方向中央側にオフセットさせる。【選択図】図1
FRAME MEMBER
フレーム部材
2018-04-05
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |