To provide a structure for protecting a fuel tank by preventing a protector from colliding with the weakest protrusion part of the fuel tank when a load is input to the protector, without excessively increasing the plate thickness of the protector.SOLUTION: On the side face of a fuel tank 1, a weakest protrusion part 13 protruding to the outside is provided, and on the side face of the fuel tank 1, a plate-like protector 3 is arranged so as to abut thereon via a buffer plate 2. The buffer plate 2 is formed of a material which the protrusion part 13 can bite and can be compressed and deformed in the plate thickness direction along with a load input in the plate thickness direction. In a region of the protector 3 opposite to the protrusion part 13, a recessed part 35 is provided into which the protrusion part 13 enters. A separation A from the front end of the protrusion part 13 to the bottom of the recessed part 35 at the time before a load F is input to the protector 3 is set to be greater than an initial plate thickness B of the buffer plate 2 and greater than a compressive deformation allowance C in the plate thickness direction of the buffer plate 2.SELECTED DRAWING: Figure 2
【課題】プロテクタの板厚を過剰に大きくすることなく、プロテクタに荷重が入力したときに、当該プロテクタが燃料タンクの最弱な突出部に衝突することを防止して燃料タンクを保護する構造。【解決手段】燃料タンク1の側面に外側へ向けて突出する最弱な突出部13が設けられており、燃料タンク1の側面に板状のプロテクタ3が緩衝板2を介して当接するように配置されており、緩衝板2は、突出部13が食い込み可能でかつ板厚方向への荷重入力に伴い板厚方向に圧縮変形可能な材料で形成されており、プロテクタ3において突出部13と対向する領域には、突出部13が入り込むような凹部35が設けられており、プロテクタ3への荷重Fの入力前において突出部13の先端から凹部35の底までの離隔距離Aは、緩衝板2の初期板厚Bよりも大きく、かつ緩衝板2の板厚方向の圧縮変形許容量Cよりも大きく設定されている。【選択図】図2
PROTECTION STRUCTURE FOR FUEL TANK
燃料タンクの保護構造
2024-08-15
Patent
Electronic Resource
Japanese
IPC: | F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |