Lower vehicle body structure

Patent metadata

Field	Value
Publication number	US-10814745-B2
Application number	US-201916246706-A
Country	US
Kind code	B2
Filing date	Jan 14, 2019
Priority date	Jan 16, 2018
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A lower vehicle body structure is provided, which includes a vehicle body floor having a bottom surface part, a floor tunnel bulging upwardly from the bottom surface part of the vehicle body floor and extending in vehicle front-and-rear directions, a power transmission mechanism disposed inside the floor tunnel, a mount member supporting the power transmission mechanism from below, and seat rails disposed on the vehicle body floor and slidably supporting seats from below. The mount member and the seat rails are jointly fastened to the vehicle body floor.

First claim

What is claimed is:

1. A lower vehicle body structure, comprising:
a vehicle body floor having a bottom surface part;
a floor tunnel bulging upwardly from the bottom surface part of the vehicle body floor and extending in vehicle front-and-rear directions;
a power transmission mechanism disposed inside the floor tunnel;
a mount member supporting the power transmission mechanism from below; and
seat rails disposed on the vehicle body floor and slidably supporting seats from below,
wherein the mount member and the seat rails are jointly fastened to the vehicle body floor.

2. The lower vehicle body structure of claim 1 , wherein floor cross members extending outwardly from the floor tunnel in vehicle width directions are disposed on the bottom surface part, and
wherein the mount member and each of the seat rails are jointly fastened to a respective floor cross member.

3. The lower vehicle body structure of claim 1 , wherein the mount member is disposed below the vehicle body floor,
wherein each of the seat rails is disposed on a respective intermediate member that is disposed above the vehicle body floor with a gap, and
wherein the mount member and each of the seat rails are jointly fastened via a respective spacer member intervening between the vehicle body floor and the respective intermediate member.

4. The lower vehicle body structure of claim 2 , wherein the mount member is disposed below the vehicle body floor,
wherein each of the seat rails is disposed on a respective intermediate member that is disposed above the vehicle body floor with a gap, and
wherein the mount member and each of the seat rails are jointly fastened via a respective spacer member intervening between the vehicle body floor and the respective intermediate member.

5. The lower vehicle body structure of claim 3 , wherein each spacer member is a high nut with which a respective bolt used for jointly fastening the mount member and the respective seat rail is threadedly engaged.

6. The lower vehicle body structure of claim 4 , wherein each spacer member is a high nut with which a respective bolt used for jointly fastening the mount member and the respective seat rail is threadedly engaged.

7. The lower vehicle body structure of claim 3 , wherein each intermediate member is a floor cross member forming with the vehicle body floor a respective closed cross-section continuing in the vehicle width directions, and
wherein each spacer member is disposed within the respective closed cross-section.

8. The lower vehicle body structure of claim 4 , wherein each intermediate member is a floor cross member forming with the vehicle body floor a respective closed cross-section continuing in the vehicle width directions, and
wherein each spacer member is disposed within the respective closed cross-section.

9. The lower vehicle body structure of claim 5 , wherein each intermediate member is a floor cross member forming with the vehicle body floor a respective closed cross-section continuing in the vehicle width directions, and
wherein each spacer member is disposed within the respective closed cross-section.

10. The lower vehicle body structure of claim 6 , wherein each intermediate member is a floor cross member forming with the vehicle body floor a respective closed cross-section continuing in the vehicle width directions, and
wherein each spacer member is disposed within the respective closed cross-section.

Assignees

• Mazda Motor

Inventors

• Natsume Hirotaka
• Matsuoka Hidenori
• Ebisumoto Keisuke

Classifications

• B62D25/2045

  the subunits being fire walls · CPC title

• B62D25/2036

  the subunits being side panels, sills or pillars (B62D21/157 takes precedence) · CPC title

• B62D39/00

  Vehicle bodies not otherwise provided for {, e.g. safety vehicles (safety equipment B60R21/00)} · CPC title

• B60K17/08 Primary

  of mechanical type · CPC title

• B62D25/20

  Floors or bottom sub-units {(sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006)} · CPC title