JP2585545Y2 - Vehicle floor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vehicle floor, particularly a vehicle floor having a front floor and a rear floor extending from a rear edge of the front floor through a step portion. .

(Prior Art) Conventionally, there has been a demand for lowering the height of a road surface of a vehicle in order to increase the cabin capacity thereof. On the other hand, a large number of members mainly swinging vertically are provided below a rear floor of the vehicle. A combined suspension is provided.

For this reason, the rear floor of the vehicle must be located at an upper position that does not interfere with the operating area of the rear suspension. As a result, the rear floor of the vehicle has a higher road surface height than the front floor and It is often connected via a unit.

That is, as shown in FIG. 3, when the rear suspension S is mounted on the vehicle body 1 of the passenger car, the rear floor 3 is formed to have a higher road surface height than the front floor 4, and the lower space of the rear floor 3, especially the tray Ring arm 5,
The lower floor 6 is configured such that the rear floor 3 is located sufficiently above the opposing portion of the working space in which the lower arm 6 and the strut 7 move up and down, thereby preventing the rear floor 3 from interfering with the upper and lower operating members. I have.

Here, when such a vehicle receives a traveling wind, the airflow W1 wrapping around the lower part of the vehicle body collides with the trailing arm 5, the lower arm 6, the strut 7, and the like in the lower space of the rear floor 3, and as a result, The rear suspension S contributes to an increase in the air resistance of the vehicle.

Therefore, as shown in FIG. 3 and FIG. 4, in the front part of the working space from the rear edge of the front floor 4 to the vertical operating member, the air flow is restricted to the vertical operating member by the straight flow.
A cover 8, which can be W2, is attached to reduce the air resistance of the vehicle.

(Problem to be Solved by the Invention) However, when such a cover 8 is mounted on the vehicle body floor, the cover deteriorates the maintainability of the vehicle, increases the number of parts, and collects on the cover 8 itself and the upper surface thereof. This has been caused by the problem that the weight of the vehicle increases due to mud and the like.

An object of the present invention is to provide a vehicle floor that can prevent an increase in the air resistance of the vehicle without increasing the number of parts.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a front floor facing a passenger compartment and a rear end extending from a rear edge of the front floor via a stepped portion. And a rear floor disposed at an upper position that does not interfere with the operating area of the rear suspension. Particularly, at least the vertical operation of the rear suspension in the vehicle width direction within the rear edge of the front floor itself. It is characterized in that a portion facing the member is formed on a tapered bulging wall that restricts the traveling wind to a downward flow.

(Function) A tapered bulging wall is formed in the rear edge of the floor itself,
Since the bulging wall restricts the traveling wind to a downward flow when the vehicle travels, it is possible to reduce the collision of the traveling wind with the upper and lower operating members of the rear suspension behind the bulging wall of the front floor.

(Embodiment) The floor of the vehicle shown in FIG. 1 is formed over a passenger compartment R1 and a subsequent luggage compartment R2, and here, a front floor 11, a vertical wall as a step extending from a rear edge thereof.
12, a rear seat pan 13 and a rear floor pan 14 as rear floors extending rearward from the upper end of the vertical wall.

Here, the front floor 11 has a lateral width close to the width of the cabin R1 and a vertical width from the front end of the rear seat cushion 15 of the cabin R1 to the lower end portion of the dashboard (not shown), and the left and right ends are integrally connected to the left and right side sills 16. In addition, the rigidity is enhanced by a pair of side members 17 extending in the front-rear direction A. Reference numeral 20 indicates a rear side member.

The vertical wall 12 is configured to secure a difference between the road surface heights H1 and H2 between the front floor 11 and the rear floor side behind the front floor 11,
The upper end is a key-shaped cross member 18 that is long in the vehicle width direction B.
Are joined to enhance the rigidity.

The rear seat pan 13 supports the rear seat cushion 15 without displacement, and has a substantially container shape extending rearward from the vertical wall 12 side. The rear floor pan 14 extends continuously from the rear edge of the rear seat pan 13 and the vehicle. Constructs the floor of the rear luggage compartment R2. Below the rear floor, a rear floor lower space E is formed in a rear portion of the vertical wall 12.

A fuel tank 19 is provided in the center of the lower space E on the rear floor, and a rear suspension is provided on both sides and a rear portion thereof.

The front end of the fuel tank 19 is arranged close to the vertical wall 12, and the lower wall surface of the tank is formed to have substantially the same height as the lower wall surface of the front floor 11.

The rear suspension supporting the left and right rear wheels T includes left and right operating link systems R as vertical operating members including a trailing arm 5, a lower arm 6, and a strut 7.

Here, the rear edge of the front floor 11 is joined to the lower edge of the vertical wall 12, and the tank facing portion 111 with the fuel tank 19 in the vehicle width direction B is formed at the same road surface height as the front portion thereof. The link facing portions 112, 112 (only one is shown in FIG. 2) on both sides of the tank facing portion 111 and the left and right operating link systems R have a reduced road surface height relative to the front portion.

The link opposing portions 112, 112 here are formed on a tapered bulging wall surface TF that gradually increases the bulging amount from the front to the rear in order to change the traveling wind from the front to the downflow WD. Note that the taper here is
A value that can minimize the collision of the traveling wind with the operating link system R is experimentally set for each vehicle body.

The floor of such a vehicle is manufactured without increasing the number of parts when manufacturing the vehicle. In addition, it is only necessary to change the shape of the rear edge itself of the conventional front floor downward, and the manufacturing process of the front floor does not increase.

When a vehicle having such a floor travels, it wraps around the lower part of the vehicle body and reaches the rear edge of the front floor 11,
In the tank opposing portion 111, the airflow flows along the lower wall surface of the tank as it is, and the airflow that reaches the link opposing portions 112, 112 is changed to the descending flow WD by the tapered bulging wall surface TF, and the left and right working link systems R Since the vehicle passes below, it is prevented from directly colliding with the left and right operating link systems R, and the running resistance of the vehicle is reduced.

In the above process, the tapered bulging wall TF is formed at a part of the rear edge of the front floor 11, but in some cases, the tapered bulging wall TF is formed in the entire area in the vehicle width direction B. You may.

(Effects of the Invention) In the present invention, the bulging wall in the rear edge of the front floor itself reduces the traveling wind from colliding with the upper and lower operating members of the rear suspension. An increase in resistance can be prevented. In addition, the front floor itself is also used as a member that regulates the traveling wind, so there is no increase in cost or weight, and dust and mud accumulate on the upper surface as if it were formed as a separate part. There is no increase.

[Brief description of the drawings]

1 is a schematic cross-sectional view of a main part of a vehicle floor as one embodiment of the present invention, FIG. 2 is a schematic low-side view of a main part of the same vehicle floor, and FIG. 3 is a schematic main part of a conventional vehicle floor. FIG. 4 is a schematic cross-sectional view of a main part of a floor of a conventional vehicle. 10… Car compartment, 11… Front floor, 13… Rear seat pan, 14… Rear floor pan, 111… Tank opposite part, 1
12: Link opposing portion, B: Vehicle width direction, TF: Tapered bulging wall surface, R: Working link system.

Claims (1)

(57) [Scope of request for utility model registration] 1. A front floor facing a vehicle compartment and extending rearward from a rear edge of the front floor via a step portion, and are disposed at an upper position where interference with an operating area of a rear suspension of the vehicle does not occur. In the floor of the vehicle comprising a rear floor, at least a portion of the rear edge of the front floor itself facing the upper and lower operating members of the rear suspension in the vehicle width direction has a tapered shape for restricting traveling wind to a downward flow. A vehicle floor formed on a bulging wall surface.