VEHICULAR BACK DOOR

• Main Author: YAMASHITA JUNICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 16.03.2015
• Subjects: PERFORMING OPERATIONS; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES; TRANSPORTING; VEHICLES IN GENERAL; WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES

PROBLEM TO BE SOLVED: To prevent a large hole from being opened at the place corresponding to the lower part of a back door even if an inner panel and an outer panel constituting the lower part of a door body are dispersed upon rear surface collision of a vehicle.SOLUTION: An adhesion part (53) of an inner panel (7) and an outer panel (9) at the upper edge part and the lower edge part of a lower part (3b) of a door body (3) is formed as an elastic adhesion part (53) which absorbs stress due to impact upon rear surface collision of a vehicle, a reinforcement sheet-like article (55) which has extending performance is spread vertically with being expanded in the vehicle width direction in an inside space (S) at the lower part (3b) of the door body (3), and the upper and the lower both edge parts of the reinforcement sheet-like article (55) are adhered to the door body (3) at the elastic adhesion part (53) or the part of the outer panel (9) along this. 【課題】車両の後面衝突時においてドア本体のロア部を構成するインナーパネル及びアウターパネルが飛散しても、バックドアのうちロア部に対応する箇所に大きな穴が開くのを防止する。【解決手段】ドア本体（3）のうちロア部（3b）の上縁部及び下縁部におけるインナーパネル（7）とアウターパネル（9）との接着部（53）を、車両の後面衝突時の衝撃による応力を吸収する弾性接着部（53）とし、ドア本体（3）のロア部（3b）における内部空間（S）に延伸性を有する補強シート状物（55）を車幅方向に広げた状態で上下方向に掛け渡して、この補強シート状物（55）の上下両縁部を、弾性接着部（53）又はこれに沿うアウターパネル（9）部分でドア本体（3）に接着する。【選択図】図４