To make fracture less likely to occur during a collision and attain high energy absorption performance in a door beam of a motor vehicle formed by aluminum alloy extrusion material having a closed cross section structure having a welding part along a longitudinal direction.SOLUTION: A door beam 1 includes: a pair of flanges 2, 3 located at the inner side and the outer as seen in a vehicle body width direction; and a pair of webs 4, 5 connecting the pair of flanges 2, 3. Welding parts 6, 7 are provided at the pair of flanges 2, 3 formed along a longitudinal direction (an extrusion direction of the aluminum alloy extrusion material) and are not provided in the pair of webs 4, 5.SELECTED DRAWING: Figure 1
【課題】長手方向に沿って溶着部を有する閉断面構造のアルミニウム合金押出形材からなる自動車のドアビームにおいて、衝突時に破断が生じにくく、高いエネルギー吸収性能が得られるようにする。【解決手段】車体幅方向内側及び外側に位置する一対のフランジ2,3と、それらを接続する一対のウエブ4,5を備えるドアビーム1であって、溶着部6,7が、一対の長手方向(アルミニウム合金押出形材の押出方向)に沿って形成されているフランジ2,3に設けられ、一対のウエブ4,5に設けられていない。【選択図】図1
DOOR BEAM
ドアビーム
2019-06-20
Patent
Electronic Resource
Japanese
IPC: | B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING , Herstellen von Blechen, Metalldraht, -stangen, -rohren Metallprofilen oder Halbzeugen auf andere Weise als durch Walzen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B62D MOTOR VEHICLES , Motorfahrzeuge |
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