Vehicle floor lower structure

• US 9,944,173 B2
• Filed: 08/25/2016
• Issued: 04/17/2018
• Est. Priority Date: 10/20/2015
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Ajisaka, Satoshi
• Primary Examiner(s): Restifo, Jeffrey J
• Application Number:
  US15/247,180
• Publication Number:
  US 20170106743A1
• Time in Patent Office: 600 Days
• Field of Search: 180 685, 180309, 180 694, 180 695
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60K 13/04 concerning exhaust collecting exhaust gases with central suction systems not forming part of vehicles, e.g. in workshops or tunnels B08B15/002, otherwise along carriageways E01C1/005; extensions for melting snow on roads E01H5/00, E01H6/00; exhaust or silencing apparatus for internal combustion engines per se F01N; pipes, joints or supports therefor F16L
• CPC Class Codes: B60K 15/063 Arrangement of tanks
• CPC Class Codes: B60K 2001/0433 Arrangement under the rear seats
• CPC Class Codes: B60K 2001/0438 Arrangement under the floor
• CPC Class Codes: B60K 2015/0632 the fuel tank is arranged below the front seat
• CPC Class Codes: B60K 2015/0634 the fuel tank is arranged below the vehicle floor
• CPC Class Codes: B62D 25/20 Floors or bottom sub-units sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006
• CPC Class Codes: B62D 25/2036 the subunits being side panels, sills or pillars B62D21/157 takes precedence

Abstract

A vehicle floor lower structure includes: a floor panel configuring a floor of a vehicle and formed with a floor tunnel, that projects out toward a vehicle body upper side and extends along a vehicle body front-rear direction, the floor tunnel is disposed at a vehicle width direction center of the floor panel; a fuel tank that is disposed at a vehicle body lower side of the floor panel and that includes a main tank section disposed inside the floor tunnel and an extension tank section that is disposed inside the floor tunnel and that projects out from the main tank section toward a vehicle body front side or a vehicle body rear side; and an exhaust pipe that is routed so as to pass by inside the floor tunnel at a vehicle width direction outer side of the main tank section and the extension tank section.

Claims

1. A vehicle floor lower structure comprising:

a floor panel configuring a floor of a vehicle and formed with a floor tunnel, that projects out toward a vehicle body upper side and extends along a vehicle body front-rear direction, the floor tunnel is disposed at a vehicle width direction center of the floor panel and extends in a vehicle body up-down direction above other surfaces of the floor panel, wherein a widened section that is widened toward vehicle width direction outer sides is formed in a lower end portion of the floor tunnel, and the widened section includes an upper wall that is disposed between an upper surface of the floor tunnel and other surfaces of the floor panel in the vehicle body up-down direction;

a fuel tank that is disposed at a vehicle body lower side of the floor panel and that includes a main tank section disposed inside the floor tunnel and an extension tank section that is disposed inside the floor tunnel and that projects out from a front end of the main tank section toward a vehicle body front side inside the floor tunnel or a vehicle body rear side inside the floor tunnel; and

an exhaust pipe that is configured to extend from an engine and that is routed so as to pass by inside the floor tunnel at a vehicle width direction outer side of the main tank section and the extension tank section.

2. The vehicle floor lower structure of claim 1, wherein:

the fuel tank includes a sub tank section projecting out from the main tank section toward a first side in the vehicle width direction outer sides of the main tank section; and

the exhaust pipe is routed so as to pass by at a second side in the vehicle width direction outer sides of the main tank section.

3. The vehicle floor lower structure of claim 2, wherein a permitting section through which a portion of the exhaust pipe passes is formed at a lower end portion of the floor tunnel.

4. The vehicle floor lower structure of claim 1, wherein:

the fuel tank includes a sub tank projecting out from the main tank section toward the vehicle width direction outer sides of the main tank section, and is disposed inside the widened section.