LOWER VEHICLE BODY STRUCTURE

• Main Authors: MATSUOKA SHUSUKE, NATSUME YUKI, EBIMOTO KEISUKE
• Format: Patent
• Language: English; Japanese
• Published: 25.07.2019
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING; VEHICLES IN GENERAL

To reduce the weight of a vehicle body and effectively inhibit vibrations from being transmitted from a power transmission device to a seat in a vehicle where the power transmission device in a floor tunnel is supported by a mounting member and seat rails are provided on a vehicle body floor.SOLUTION: A lower vehicle body structure includes a vehicle body floor 2 having a bottom surface portion 3, a floor tunnel 50 bulged upward of a vehicle from the bottom surface portion 3 on the vehicle body floor 2 and extending in a front to back direction Y of the vehicle, a power transmission device 24 provided in the floor tunnel 50, a mounting member 70 supporting the power transmission device 24 from the lower side of the vehicle, seat rails 99 provided on the vehicle body floor 2 and supporting a seat from the lower side of the vehicle so that the seat is slidable. The mounting member 70 and the seat rails 99 are tightened together to the vehicle body.SELECTED DRAWING: Figure 4 【課題】フロアトンネル内の動力伝達機構がマウントメンバによって支持され、車体フロア上にシートレールが設けられる車両において、車体の軽量化を図りつつ、動力伝達機構からシートへの振動伝達を効果的に抑制する。【解決手段】底面部３を有する車体フロア２と、該車体フロア２において前記底面部３から車両上方側に膨出して車両前後方向Ｙに延びるフロアトンネル５０と、該フロアトンネル５０内に配設された動力伝達機構２４と、該動力伝達機構２４を車両下方側から支持するマウントメンバ７０と、前記車体フロア２上に配設され、シートを車両下方側から摺動可能に支持するシートレール９９と、を備えた下部車体構造において、前記マウントメンバ７０と前記シートレール９９とを、車体に対して共締めする。【選択図】図４