Vehicle undercarriage

Abstract

To obtain a vehicle understructure that can protect equipment located under the seats while suppressing the submarine effect during a frontal collision. [Solution] The vehicle understructure includes a seat cushion provided inside the passenger compartment and having a seat portion on which an occupant sits; a seat base provided on the lower side of the vehicle of the seat cushion, with at least a portion positioned below the seat portion and supporting the seat cushion from below; and a reinforcing member provided between the seat cushion and the seat base, supported on the upper surface of the front part of the seat base, and extending along the width direction of the vehicle.

Claims

1. A seat cushion provided inside the vehicle, which has a seating area where the occupants sit, A seat base is provided on the lower side of the vehicle of the seat cushion, with at least a portion of it positioned below the seat portion, and supporting the seat cushion from below. A reinforcing member is provided between the seat cushion and the seat base, supported on the upper surface of the front part of the seat base, and extends along the vehicle width direction, A vehicle understructure having the following characteristics.

2. The vehicle understructure according to claim 1, wherein the upper surface of the seat base is provided with an inclined portion that slopes downward from the front of the vehicle towards the rear of the vehicle.

3. The inclined portion is provided with a groove that extends along the vehicle width direction. The vehicle understructure according to claim 2, wherein the reinforcing member is arranged in the groove.

4. The vehicle understructure according to claim 3, wherein the reinforcing member is arranged to fit inside the groove.

5. The vehicle understructure according to claim 3, wherein the upper part of the reinforcing member protrudes above the groove.

6. The vehicle understructure according to claim 4 or 5, wherein the reinforcing member is located above the vehicle, above the lowest part of the upper surface of the seat portion.

7. The vehicle understructure according to any one of claims 1 to 5, wherein the reinforcing member is a cylindrical pipe.

8. The aforementioned seat base has sides that extend downward from both ends of the upper surface in the vehicle width direction, The vehicle understructure according to any one of claims 1 to 5, wherein the reinforcing member extends from one side surface to the other side surface.

9. The vehicle understructure according to any one of claims 1 to 5, wherein the seat base is made of metal and covers the auxiliary equipment from the upper side of the vehicle.

10. The vehicle understructure according to any one of claims 1 to 5, wherein the seat base is attached to the upper surface of a battery case in which a battery is housed.

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