BUMPER STRUCTURE

• Main Author: ISHIZUKA YUJI
• Format: Patent
• Language: English; Japanese
• Published: 15.09.2016
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR; WEAPONS

PROBLEM TO BE SOLVED: To provide a bumper structure which can efficiently absorb energy while being excellent in light weight performance and productivity.SOLUTION: A bumper structure 10 is constituted by attaching an energy absorption body 14 in which a weld line 32 is formed to a bumper beam 12 extending along a vehicle width direction Y of a vehicle body. The energy absorption body 14 has a main body part 16 having a closed cross section structure which extends along a fore-and-aft direction X of the vehicle body, and in which one end 32a of the weld line 32 is arranged at a front end of the fore-and-aft direction X. An inclination angle θ with respect to a first virtual line L2, out of an opening 18, of an arrangement line L1 being a virtual line passing through a cross point Q between a first virtual line L2, out of the opening 18 of the main body part 16 at a front end, the first virtual line extending along the vehicle width direction Y while passing through a first middle point being a middle point between an upper end and a lower end of the vehicle body in a vertical direction Z, and a second virtual line L3 extending to the vertical direction Z while passing through a second middle point being a middle point between one end and the other end of the vehicle width direction Y, and one end 32a of the weld line 32 is within 30°.SELECTED DRAWING: Figure 2 【課題】軽量性及び生産性に優れながら、エネルギーを効率的に吸収することが可能なバンパ構造体を提供する。【解決手段】バンパ構造体１０は、車体の車幅方向Ｙに沿って延在するバンパビーム１２に、ウェルドライン３２が形成されたエネルギー吸収体１４を取り付けて構成される。エネルギー吸収体１４は、車体の前後方向Ｘに沿って延在する閉断面構造の本体部１６を有し、前後方向Ｘの前端部にウェルドライン３２の一端３２ａが配置される。本体部１６の前端の開口１８のうち、車体の上下方向Ｚの上端と下端の中点である第１中点を通って車幅方向Ｙに沿って延在する第１仮想線Ｌ２と、開口１８のうち、車幅方向Ｙの一端と他端の中点である第２中点を通って上下方向Ｚに延在する第２仮想線Ｌ３との交点Ｑと、ウェルドライン３２の一端３２ａとを通る仮想線である配置線Ｌ１の第１仮想線Ｌ２に対する傾斜角度θが３０°以内である。【選択図】図２