INTERIOR PART FIXING STRUCTURE OF FUEL TANK AND MOLDING DEVICE OF INTERIOR PART FIXING PART OF FUEL TANK

• Main Author: TANABE DAISUKE
• Format: Patent
• Language: English; Japanese
• Published: 16.03.2017
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

PROBLEM TO BE SOLVED: To provide an interior part fixing structure of a fuel tank which can suppress the concentration of stress at a bottom of a recess which is formed at a tank outer face of a fixing part which fixes a fastening seat.SOLUTION: An interior part fixing structure 18 of a fuel tank comprises: a tank main body 28 which can accommodate fuel; a plate-shaped fastening seat 26 which is arranged at an interior part 24, and in which a fixing hole 32 for fastening and fixing the interior part 24 to the tank main body 28 is formed; and a caulking fixing part 22 which includes a protrusion 34 protruding from an inner face of the tank main body 28, and blocking the fixing hole 32, a holding part 36 which hangs out of the protrusion 34 up to a peripheral part 26C of the fastening seat 26, and holds and sandwiches the peripheral part 26C together with the inner face 28C, and a recess 38 which is formed in a region corresponding to the protrusion 34 of an outer face 28D of the tank main body 28, recessed to a protrusion protruding direction, and located in a position in which a position of a protruding direction of a bottom 34A is the same as that of a plate face 26A of the fastening seat 26, or at a side opposite to the protrusion protruding direction rather than the plate face 26A.SELECTED DRAWING: Figure 2 【課題】締結座を固定する固定部のタンク外面に形成される凹部の底部に応力が集中するのを抑制できる燃料タンクの内蔵部品固定構造を提供する。【解決手段】燃料タンクの内蔵部品固定構造１８は、燃料を収容可能なタンク本体２８と、内蔵部品２４に設けられ、内蔵部品２４をタンク本体２８へ締結固定するための固定孔３２が形成された板状の締結座２６と、タンク本体２８の内面から突出し、固定孔３２を塞ぐ突部３４と、突部３４から締結座２６の周辺部２６Ｃまで張り出し、周辺部２６Ｃを内面２８と共に挟んで保持する保持部３６と、タンク本体２８の外面２８Ｄの突部３４に対応する部位に形成され、突部突出方向に凹み、底部３４Ａの突出方向の位置が締結座２６の板面２６Ａと同じ位置又は板面２６Ａよりも突部突出方向と反対側に位置する凹部３８と、を含んで構成されるカシメ固定部２２と、を備えている。【選択図】図２