To provide a reinforcement structure which can prevent or reduce deformation of a back door opening caused by resonance without causing significant increase of the weight.SOLUTION: In a reinforcement structure of a back door opening, a rear header 110 includes a roof panel 20 and an outer reinforcement 31 and an inner panel 34, which are combined in a closed cross section shape below the roof panel 20, and is located above a back door opening 1. In the rear header 110, the outer reinforcement 31 includes a shelf part 312 and a cross section hat part 32 which is continuous with a front end of the shelf part 312. A back door hinge 210 is provided at a portion, which is joined to the shelf part 312 in an overlapping manner, of the roof panel 20. The reinforcement structure of the back door opening is provided with a reinforcement member 50 having at least a portion 51 which spans a space between a lower surface of the shelf part 312 located near the back door hinge 210 and a joint part 35 between the outer reinforcement 31 and the inner panel 34 located at the front relative to the lower surface and which closes a lower opening 322 of the cross section hat part 32.SELECTED DRAWING: Figure 5
【課題】 重量増加をそれほど招くことなく、共振によるバックドア開口の変形を防止または軽減できる補強構造を提供する。【解決手段】 ルーフパネル20と、ルーフパネル20の下方において閉断面状に組み合わされたアウタリインフォース31およびインナパネル34とを含むとともに、バックドア開口1の上方に位置するリヤヘッダ110において、アウタリインフォース31は、棚部312と、棚部312の前端につながる断面ハット部32と、を含み、棚部312と重ね合わせ接合されたルーフパネル20の部位には、バックドアヒンジ210が設けられており、バックドアヒンジ210の近傍に位置する棚部312の下面と、当該下面よりも前方に位置するアウタリインフォース31およびインナパネル34の接合部35と、の間を掛け渡すとともに、断面ハット部32の下部開口322を閉じる部分51を少なくとも有する補強部材50を設けた。【選択図】 図5
REINFORCEMENT STRUCTURE OF BACK DOOR OPENING
バックドア開口の補強構造
2022-08-25
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Automobile back door structure and back door opening method
European Patent Office | 2022
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