VEHICLE BODY UPPER PART STRUCTURE OF VEHICLE

• Main Authors: OSHIMA SHUNSUKE, MIKURIYA TAKAHIDE
• Format: Patent
• Language: English; Japanese
• Published: 02.11.2015
• Subjects: LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING

PROBLEM TO BE SOLVED: To prevent booming noise such as sound noise from occurring in a passenger compartment when some impact force is given to a vehicle body, in the case of forming a bead group in a roof panel in order to improve rigidness of the roof panel forming the top face of the passenger compartment, and achieve the aim while excellently retaining the productivity of vehicle bodies.SOLUTION: A bead group 34 having a plurality of beads 33 extending in the longitudinal direction of a vehicle body 2, and arranged in parallel in the width direction of the vehicle body 2 is formed on a roof panel 9 forming the top face of a passenger compartment 3 inside the vehicle body 2. The bead group 34 comprises front and back bead groups 34a and 34b arranged so as to be separated from each other in the longitudinal direction of the vehicle body 2. A position of each of the beads 33 of the front bead group 34a, and a position of each of the beads 33 of the back bead group 34b are different from each other in the width direction of the vehicle body 2. 【課題】車室の上面を形成するルーフパネルの剛性の向上のために、ルーフパネルにビード群を形成した場合において、何らかの衝撃力が車体に与えられるとしても、車室内にこもり音のような騒音が発生しないようにすることであり、また、この目的が、車体の生産性を良好に維持したままで達成できるようにする。【解決手段】車体２内部の車室３の上面を形成するルーフパネル９に、それぞれが車体２の前後方向に延びると共に車体２の幅方向に並設される複数本のビード３３を有するビード群３４を形成する。ビード群３４を、車体２の前後方向で互いに離反するよう配置される前、後ビード群３４ａ，３４ｂで構成する。前ビード群３４ａの各ビード３３と後ビード群３４ｂの各ビード３３とのそれぞれ車体２の幅方向での各位置を互いに相違させる。【選択図】図１