JP2003237390A - Arrangement structure for vehicular canister - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a limit to a storage part such as a trunk room by a large canister and increase a handling capacity for fuel vapor in a fuel tank, by arranging the large canister with effective use of a space under a driver's seat, a front passenger seat or their middle. <P>SOLUTION: A vehicle 10 has two or three rows of seats 15 and 18 longitudinally between a front axle 38 and a rear axle 39 and on a floor panel 12 of a cabin 11, and has the driver's seat 23 and the front passenger seat in the right and left as the front row of front seats 15 out of the seats 15 and 18. The canister 16 is arranged under the driver's seat 23, the front passenger seat 68 or their middle and under a front floor panel 13. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement structure of a vehicle canister suitable for mounting a large-sized canister. 2. Description of the Related Art An arrangement structure of a canister for a vehicle includes:
For example, Japanese Patent No. 3057474 discloses an arrangement structure of a canister in a vehicle. In FIG. 3 of the publication, a canister 41 (the reference numeral
The one described in the publication was used. same as below. )
And a structure in which the fuel tank 23 is disposed. [0003] In the technique disclosed in the above publication,
When the size of the canister 41 is increased, the capacity of the fuel tank 23 is reduced. In order to secure the tank capacity, the floor above the fuel tank 23 must be raised. When the floor is raised, inconveniences such as deterioration of rear seat comfort and reduction of the capacity of the trunk room occur. An object of the present invention is to provide a large-sized canister by improving the arrangement of a canister for a vehicle. [0005] In order to achieve the above object, a first aspect of the present invention is to provide two or three rows of front and rear seats between a front axle and a rear axle and on a floor of a passenger compartment. In a vehicle provided with a driver's seat and a passenger seat on the left and right in the front row of these seats, a canister is arranged below the driver's seat or the passenger's seat or between them and below the floor. A large canister can be arranged by effectively utilizing the space below the driver's seat or the passenger's seat or between them. Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is an explanatory view of a vehicle employing an arrangement structure of a canister according to the present invention.
An intermediate portion (a part of the front floor panel 13) of the floor panel 12 as a floor of the vehicle is protruded upward to form an intermediate projecting portion 14 on the floor panel 12, and a front portion is formed on the upper portion of the intermediate projecting portion 14. The seat 15 is mounted, the canister 16 is arranged below the intermediate projection 14, and the rear seat 18 is mounted on the rear part of the floor panel 12 (part of the rear floor panel 17). This is a four-wheeled vehicle in which the fuel tank 21 is mounted below the rear floor panel 17. In order to facilitate understanding of the position of the canister 16, the canister 16 is cross-hatched. The front seat 15 is composed of a driver's seat 23 and a passenger seat arranged side by side (described with reference to FIG. 4). The above-described canister 16 is a component constituting a fuel vapor processing apparatus that processes fuel vapor generated as gas in the fuel tank 21. Here, 31 is an engine, 32 is a steering wheel, 33 is a driver, 34 is a fellow passenger, 35 is a front wheel (one front wheel is not shown), and 36 is a rear wheel (one rear wheel is not shown). Reference numeral 37 denotes a luggage storage unit, 38 denotes a front axle as an axle of the front wheel 35, and 39 denotes a rear axle as an axle of the rear wheel 36. FIG. 2 is a system diagram of an evaporative fuel processing apparatus for a vehicle according to the present invention. The evaporative fuel processing apparatus 45 transfers the evaporative fuel from the fuel tank 21 to the canister 16 to the fuel tank 21 and the canister 16. A first evaporative fuel pipe 46, a two-way valve 47 provided as a two-way valve in the middle of the first evaporative fuel pipe 46, and a canister 21.
And a second evaporative fuel pipe 51 extending from the canister 16 to the intake pipe 48 to flow the evaporative fuel to the intake pipe 48 of the engine 31, and a second evaporative fuel pipe 51 to control the flow rate of the evaporative fuel from the canister 16 to the intake pipe 48. A purge control valve 52 is provided in the middle of the fuel vapor pipe 51. The canister 16 is a container filled with activated carbon, and temporarily adsorbs the evaporated fuel flowing out of the fuel tank 11 through the first evaporated fuel pipe 46 with the activated carbon. Atmospheric pressure is taken into the canister 16 from the outside by the suction negative pressure of 48, the fuel vapor is separated from the activated carbon, and is sucked into the intake pipe 48. The two-way valve 47 opens when the pressure in the fuel tank 21 increases and becomes higher than the atmospheric pressure, and closes when a negative intake air pressure acts on the canister 16 from the intake pipe 48. A first valve (not shown) and a second valve (not shown) that opens when the fuel vapor in the fuel tank 21 cools and the pressure in the fuel tank 21 decreases. The purge control valve 52 is a valve for controlling the amount of fuel vapor flowing from the canister 16 to the intake pipe 48 when a negative suction pressure is generated in the intake pipe 48 when the engine 31 is operating. is there. FIG. 3 is a cross-sectional view illustrating a canister according to the present invention. A hook-like member 55 having a U-shaped tip is attached to the rear of the upper surface below the intermediate protrusion 14 provided on the front floor panel 13. At the same time, a cover member 57 having a bent member 56 bent in the shape of a crank is attached to the front of the upper surface, and an L-shaped protrusion 16a is formed at the rear end of the canister 16, and the mounting arm 16b is attached from the front end. The canister 16 was attached to the cover member 57 by extending the L-shaped projection 16a, hooking the hook member 55 of the cover member 57, and attaching the mounting arm 16b to the bending member 56 with the bolt 58 and the nut 59. . The cover member 57 is a member attached to the cross beams 63 and 64 below the front floor panel 13 so as to cover the lower part of the canister 16. Here, 65 is a mounting bolt for the cover member 57, and 66 is a mounting nut for the cover member 57. FIG. 4 is a first cross-sectional view for explaining the arrangement structure (first embodiment) of the canister according to the present invention, and shows a cross-sectional view in the vehicle width direction at the position of the front seat 15. The canister 16 is mounted on the front floor panel 1 below the driver's seat 23.
3 is a component disposed below the intermediate projection 14, that is, below the driver's seat 23. 68 is a passenger seat, 71 and 72 are side sills for attaching the left and right ends of the front floor panel 13, 73 is a central portion of the front floor panel 13 and a floor tunnel formed to be convex in the vehicle longitudinal direction, and 74 is a front floor panel. 13 is a floor frame attached to a lower portion of the floor frame 13. FIG. 5 is a second sectional view for explaining the arrangement structure (second embodiment) of the canister according to the present invention, wherein an intermediate projecting portion 14 (FIG. 3) is provided on a front floor panel 13 below a passenger seat 68. ), Indicating that the canister 16 is disposed below the intermediate protrusion 14, that is, below the passenger seat 68. FIG. 6 is a third sectional view for explaining an arrangement structure (third embodiment) of the canister according to the present invention, in which the canister 75 is arranged below the driver seat 23 and the passenger seat 68 and It shows that it was arranged below the front floor panel 13 (specifically, the floor tunnel 73). As described above with reference to FIGS. 1, 4 and 5, the present invention is applied to the front two front and rear rows between the front axle 38 and the rear axle 39 and on the floor panel 12 of the cabin 11. Alternatively, three rows of seats 15 and 18 are provided, and a driver's seat 23 and a passenger seat 6 are provided on the left and right sides of the front seat 15 which is the front row of these seats 15 and 18.
8, the canister 16 is arranged below the driver's seat 23 or below the passenger seat 68, below the middle between the driver's seat 23 and the passenger seat 68, and below the front floor panel 13. And By arranging the canister 16 below the driver's seat 23 or the passenger's seat 68 or between them and below the front floor panel 13, the space below the driver's seat 23 or the passenger's seat 68 is effectively used, and a large A canister 16 can be arranged. Therefore, for example, when a large canister is disposed below the rear seat as in the prior art, the capacity of the fuel tank is reduced, and the floor above the fuel tank is not raised to secure the fuel tank capacity. As a result, the livability of the rear seats is deteriorated, and the volume of the luggage storage unit (corresponding to the luggage storage unit 37 in FIG. 1) at the rear of the vehicle is reduced in a trunk room or a vehicle without a trunk room. In comparison, according to the present invention, the livability of the rear seat is not deteriorated, and the volume of the luggage storage unit is not reduced. Further, according to the present invention, since the large-sized canister 16 can be arranged, the processing capability of the fuel vapor in the fuel tank 21 can be increased. In the present invention, the canister is disposed below the driver's seat, the passenger's seat, or an intermediate portion between them. However, depending on the shape of the canister, the canister may be disposed below both the driver's seat and the passenger's seat. According to the present invention, the following effects can be obtained by the above-mentioned structure. In the arrangement structure of the vehicle canister according to claim 1, the canister is arranged below the driver's seat or the passenger seat or between them and below the floor, so that the space below the driver's seat or the passenger seat or the middle between them can be effectively used. Large canisters can be arranged.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view of a vehicle adopting a canister arrangement structure according to the present invention. FIG. 2 is a system diagram of an evaporative fuel processing apparatus for a vehicle according to the present invention. FIG. FIG. 4 is a cross-sectional view illustrating the canister according to the present invention. FIG. 4 is a first cross-sectional view illustrating the arrangement structure of the canister according to the present invention (first embodiment). FIG. 6 is a third cross-sectional view illustrating a canister arrangement structure (third embodiment) according to the present invention. 13: floor (floor panel, front floor panel), 15, 18: seats (front and rear seats), 16: canister, 23: driver's seat, 38: front axle, 39: rear axle, 68: passenger seat.

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Takeaki Nakajima             1-4-1 Chuo, Wako-shi, Saitama Stock Association             Inside the Honda Research Laboratory F term (reference) 3D038 CA15 CA25 CB01 CC05 CD02                 3G044 BA39 GA28 GA30

Claims (1)

Claims 1. Two or three rows of front and rear seats are provided between a front axle and a rear axle and on the floor of a passenger compartment, and the left and right driver's seats are provided in the front row of these seats. And a vehicle provided with a front passenger seat, wherein a canister is disposed below the driver's seat or front passenger seat or between them and below the floor.