LOWER VEHICLE-BODY STRUCTURE OF VEHICLE

• Main Authors: Nakauchi, Shigeru, Kurokawa, Sho, Sakaguchi, Kinya, Kimura, Toshio, Yabumoto, Yosuke, Satou, Kouki, Matsubara, Hiroshi, Izumi, Yohei, Nomura, Kentaro, Hanazaki, Masanobu
• Format: Patent
• Language: English; French; German
• Published: 22.12.2021
• Subjects: LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING; VEHICLE SUSPENSION ARRANGEMENTS; VEHICLES IN GENERAL

The support stiffness of a suspension supporting portion can be improved, thereby contributing to the reduction of floor vibration. Arm front-end supporting portions (20, 20A) that each support a front end portion (12) of a trailing arm (11) of a rear suspension (10) are formed on lower portions of rear frames (6) extending in a vehicle longitudinal direction, and a squared U-shape portion (21, 21A) including an outer wall portion (30r), an inner wall portion (23, 23A), and a front wall portion (24, 24A) with a rear side being open when viewed from the bottom is included in each of the arm front-end supporting portions (20, 20A), in which: an extending outer wall portion (30f) extending from the outer wall portion (30r) to a place in front of the front wall portion (24, 24A) is formed in each of the arm front-end supporting portions (20, 20A); the outer wall portion (30r) and the extending outer wall portion (30f) are formed by a side sill inner portion (3a) joined to each of the rear side frames (6); and an extending inner wall portion (40, 26) that extends from the inner wall portion (23, 23A) to a place in front of the front wall portion (24, 24A) and is joined to each of the rear side frames (6) is formed in each of the arm front-end supporting portions (20, 20A).