To suppress a load applied to an intake system of a vehicle, and to transition from an expanded state to a predetermined contracted state within a short time.SOLUTION: A rectifying body 21 includes a plurality of bag portions 24, and a seat portion 25. A base end edge 22 of the rectifying body 21 is placed along a circumferential edge of a rear surface of a vehicle, and is fastened to the vehicle. Each of the plurality of bag portions 24 includes: a bag body 26 in a tube-like shape; and an elastic body 27 in a spiral shape normally. When the bag body 26 in a contracted state expands against the spring force by the elastic body 27 from the base end edge 22 side toward a tip edge 23 side due to air intake in the bag body 26, the elastic body 27 is elongated from the spiral shape toward a rear side of the vehicle, and thus the rectifying body 21 becomes an expanded state. When the internal pressure of the bag body 26 in the expanded state is released to the air, the elastic body 27 returns to the spiral shape, and the rectifying body 21 is wound along with the return of the elastic body 27, and becomes the contracted state.SELECTED DRAWING: Figure 5
【課題】車両の給気系統に与える負荷を抑えるとともに、展開状態から短時間で所定の収縮状態に移行させる。【解決手段】整流体21は、複数のバッグ部24とシート部25とを有し、整流体21の基端縁部22は、車両後面の周縁に沿って配置されて車両側に固定される。複数のバッグ部24の各々は、チューブ状の袋体26と常態が渦巻形状の弾性体27とを有する。袋体26への給気により収縮状態の袋体26が弾性体27のばね力に抗して基端縁部22側から先端縁部23に向かって膨らむと、弾性体27が渦巻形状から車両後方へ伸長して整流体21が展開状態となる。展開状態の袋体26の内圧が大気に開放されると、弾性体27が渦巻形状へ復元し、弾性体27の復元に伴って整流体21が巻回されて収縮状態となる。【選択図】図5
VEHICULAR AIR RESISTANCE REDUCING DEVICE
車両の空気抵抗低減装置
2019-09-19
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
LAYOUT STRUCTURE FOR VEHICULAR REDUCING AGENT SUPPLY DEVICE
European Patent Office | 2018
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