JPH07156833A - Lower structure of automobile - Google Patents

Abstract

PURPOSE:To provide a lower structure of an automobile to improve the getting- on/off quality and the mobility in the width direction in a room. CONSTITUTION:Side sills 9L, 9R and frames 10L, 10R in a room 2 are extended in the longitudinal direction, and joined to the end part in the automobile width direction of a front floor panel 72. The end part is covered by a garnish 11, and a passage 13 to pass a harness 12 is formed between the garnish and the panel 72. Two storing parts 14 are provided in a downward swollen manner in the middle part of the panel 72 to store onboard parts, and a propeller shaft 19 and an exhaust tube 20 are arranged between the left and right storing parts 14, and a floor surface 21 is formed approximately flush wholly in the width direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substructure of an automobile, and more particularly to improvement of a floor shape and a height of a passenger compartment.

[0002]

2. Description of the Related Art Conventionally, as disclosed in, for example, Japanese Utility Model Laid-Open No. 1-126884, the height of the floor surface in the passenger compartment of an automobile is
It is generally known that the left and right side sills arranged on both sides of the vehicle body are set at a position lower than the height of the upper ends thereof. Further, in an FR type automobile, a tunnel portion extending in the vehicle front-rear direction is formed in the vehicle width direction central portion of the vehicle compartment floor surface in order to dispose lower parts such as a propeller shaft and an exhaust pipe below the vehicle compartment. However, it is generally known in the past.

[0003]

In an automobile in which the height of the floor of the passenger compartment is set lower than the height of the upper end of the side sill as described above, when the passenger gets in and out of the passenger compartment, the passenger crosses the side sill. There was a difficulty that getting on and off was difficult because we had to cross over. On the other hand, in an automobile having a floor with a tunnel portion formed, when an occupant moves in the vehicle width direction, the passenger has to cross over the tunnel portion.
Further, even when moving a luggage placed on the floor in the vehicle width direction, the luggage has to pass over the tunnel portion, which makes it difficult to move the luggage in the vehicle width direction.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a substructure of an automobile capable of improving the entry / exitability and the mobility in the vehicle width direction in the vehicle interior. .

[0005]

In order to achieve the above-mentioned object, a lower structure of an automobile according to the present invention comprises a floor surface of a passenger compartment and left and right extending in the vehicle longitudinal direction at both ends in the vehicle width direction of the floor surface. In a lower structure of an automobile having a side sill, the basic structure is such that the floor surface is substantially flat over the entire width direction of the vehicle, and is formed at substantially the same height as the upper ends of the left and right side sills. To do.

According to a second aspect of the present invention, in addition to the basic structure described above, the floor structure is substantially flat over the entire width of the vehicle and is formed at substantially the same height as the upper ends of the left and right side sills. It is characterized in that an accommodating portion for accommodating in-vehicle components is formed below the surface.

According to a third aspect of the present invention, in addition to the basic structure described above, the floor structure is substantially flat over the entire width of the vehicle and is formed at substantially the same height as the upper ends of the left and right side sills. A lower component is arranged below the surface.

According to a fourth aspect of the present invention, in addition to the basic structure described above, the floor structure is substantially flat over the entire width of the vehicle and is substantially level with the upper ends of the left and right side sills. It is characterized in that an accommodating portion for accommodating in-vehicle components is formed below the surface, and a lower component is disposed.

As a concrete form of the automobile lower structure according to a second aspect of the present invention, the storage portion is formed in an area of a vertical length of the left and right side sills. It is characterized by

A lower structure of an automobile according to a sixth aspect is a specific mode of the lower structure of the automobile according to the third aspect, in which the lower component is arranged in an area of a vertical length of the left and right side sills. It is characterized by being.

According to a seventh aspect of the vehicle undercarriage of the present invention, as a concrete mode of the vehicle undercarriage of the fourth aspect, the storage portion is formed in an area of a vertical length of the left and right side sills. It is characterized in that the lower component is arranged in a region having a vertical length of the left and right side sills.

[0012] The substructure of the automobile according to claim 8 is a concrete mode of the substructure of the automobile according to claim 2, 4, 5 or 7, wherein the on-vehicle component is a control device.

According to another aspect of the vehicle substructure described in claim 2, 4, 5 or 7, the vehicle-mounted component is an electrical component such as an audio device. It is characterized by

A substructure of an automobile according to claim 10 is a concrete mode of the substructure of the automobile according to claim 3, 4, 6 or 7, wherein the lower component is an exhaust system component. .

According to another aspect of the substructure of the automobile according to claim 3, 4, 6 or 7, the undercarriage of the automobile is a power system component such as a propeller shaft. It is characterized by being.

[0016]

According to the substructure of the automobile of the present invention having the above-described basic structure, the floor surface of the passenger compartment is formed at substantially the same height as the upper ends of the left and right side sills, so Since it is not necessary to cross over the side sill when getting on and off, it is possible to smoothly get on and off the vehicle. On the other hand, since the floor surface is formed to be substantially flat over the entire vehicle width direction, it is possible to smoothly move the occupant and luggage in the vehicle width direction in the vehicle compartment. Further, since the floor surface is formed to be substantially flat over the entire vehicle width direction, there is also an advantage that the interior of the vehicle can be made to look neat.

The floor surface of the passenger compartment may be formed such that the entire passenger compartment is substantially flat over the entire width of the vehicle and is at the same height as the upper ends of the left and right side sills, or a part thereof. Only one may be so formed. However, in order to achieve the intended purpose of the present invention to improve the entry / exitability and the mobility in the vehicle width direction in the vehicle interior,
As described above, the portion where the occupant places his / her feet when getting in and out of the passenger compartment, and the portion which becomes the passage for moving the occupant or luggage in the vehicle width direction in the passenger compartment (generally, the portion in front of the seat) are as described above. Need to be formed.

By the way, recent automobiles are increasingly equipped with various in-vehicle components such as a control box for electronic control and audio equipment. In general, these in-vehicle components are often housed in an instrument panel arranged in the front part of the vehicle compartment, which tends to increase the bulging volume of the instrument panel into the vehicle compartment. As the volume of the instrument panel that bulges into the passenger compartment increases, the space around the feet of the front seat is compressed and narrowed.

According to a second aspect of the present invention, there is provided a lower part structure of an automobile, in which an accommodating portion for accommodating in-vehicle components is formed under a floor surface of a vehicle compartment. By storing in-vehicle parts such as the control box for electronic control and audio equipment described above that were stored in the conventional instrument panel in this storage part, the volume of expansion of the instrument panel into the vehicle interior can be reduced. It is possible to reduce the width, and thereby it is possible to widen the space around the feet of the front seat.

In addition, in order to ensure safe operation, the vehicle is set with a minimum distance (minimum upper value) between the road surface and the vehicle body. When setting this minimum upper limit, the lower end of the side sill is often selected as the reference portion on the vehicle body side. If the lower end of the side sill is used as the reference on the vehicle body side when setting the minimum upper value, the lower parts such as the propeller shaft must be placed higher than the lower end of the side sill. Become.

In the substructure of the automobile according to claim 5, 6 or 7 according to the present invention, in consideration of the above-mentioned points, the lower parts and the accommodating portion are arranged in the region of the vertical length of the side sill. Is. By arranging the lower parts and the storage part within the area of the vertical length of the side sill, even if the lower end of the side sill is set as the standard for the minimum value, the position is lower than the lower end of the side sill. Since there are no lower parts and storage parts, it is possible to maintain the minimum price increase required to ensure safe operation.

[0022]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a diagram showing a schematic construction of an automobile to which an embodiment of the present invention is applied, FIG. 2 is a plan view showing a construction of a lower part of the body of the automobile shown in FIG. 1, and FIG. 3 is an embodiment of the present invention. III- in FIG. 2 showing the structure of the main part of the substructure of the automobile
It is a sectional view taken along line III.

As shown in FIG. 1, a plurality of seats 3 arranged in three rows in the front-rear direction of the vehicle body (left-right direction in the figure) are provided in a passenger compartment 2 of an automobile 1. At the front of the vehicle compartment 2, a dash panel 5 that divides the vehicle compartment 2 and the engine room 4
Is provided, and an instrument panel 6 that bulges into the vehicle interior 2 is installed on the vehicle interior side of the dash panel 5.

A floor panel 7 extends from the lower edge portion 5a of the dash panel 5 toward the rear of the vehicle body. A step portion 8 extending in the vehicle width direction (direction perpendicular to the plane of the drawing) is formed at the center of the floor panel 7 in the vehicle front-rear direction.
Thus, the floor panel 7 is divided into a front floor panel 72 located in front of the step 8 and the rear floor panel 74 located behind the step 8 and higher than the front floor panel 72. There is.

As shown in FIG. 2, left and right side sills 9L and 9R extending in the vehicle front-rear direction are provided at both ends in the vehicle width direction at the lower portion of the vehicle body of the automobile 1. Further, left and right frames 10L, 10R extend in the vehicle front-rear direction at positions inside the left and right side sills 9L, 9R in the vehicle width direction. Part of the left and right frames 10L, 10R is curved outward in the vehicle width direction, and the curved parts are joined to the inner surfaces of the left and right side sills 9L, 9R.

As shown in FIG. 3, the right side sill 9R and the frame 10R described above are the front floor panel.
The left side sill 9L and the frame 10L are joined to the right side end portion of the vehicle width direction 72 of the front floor panel 72, respectively. The upper portions of the left and right side sills 9L and 9R and the left and right ends of the front floor panel 72 are covered with the garnish 11, and a passage 13 for passing the harness 12 is formed between the garnish 11 and the front floor panel 72. ing.

At the middle portion of the front floor panel 72 in the vehicle width direction, there are provided two storage portions 14 formed by bulging the front floor panel 72 downward. In-vehicle parts such as an ECU (electronic control device) 15, a GPS (navigation device using a satellite) 16 and an audio device 17 which are conventionally housed in the instrument panel 6 are housed in the housing portion 14. . After housing each on-vehicle component in the storage unit 14, the lid 18 is configured to cover the storage unit (the outline of the configuration of the storage unit 14 is shown in FIG. 4). A propeller shaft 19 and an exhaust pipe 20 extending in the vehicle front-rear direction are arranged between the left and right storage portions 14 as shown in FIG.

In this embodiment, the front floor panel 72,
The lid 18 and the garnish 11 constitute a floor surface 21 at the front of the passenger compartment 2. The floor surface 21 is substantially flat over the entire width direction of the vehicle and is substantially the same as the upper ends of the left and right side sills 9L, 9R. It is formed at a height (a floor mat is usually placed on the upper surface of the front floor panel 72, but the illustration thereof is omitted for simplification of description). Since the floor surface 21 is formed in this way, the occupant gets in and out of the passenger compartment 2 when the door 22 is opened and the occupant gets in and out of the passenger compartment 2. There is.

Further, in the present embodiment, the height of the lower end of the storage portion 14 from the road surface 23 is set to be higher than the height of the lower end portions of the left and right side sills 9L, 9R.
The propeller shaft 19 and the exhaust pipe 20 are arranged at a position higher than the lower ends of the left and right side sills 9L, 9R.
As a result, even when the vehicle body side reference of the minimum ground clearance from the road surface 23 is set to the lower end portions of the left and right side sills 9L, 9R, between the lower end portion of the storage portion 14 and the road surface 23 and the propeller shaft 19 The exhaust pipe 20 and the road surface 23 can be spaced at a minimum clearance above ground level.

Although the embodiment of the substructure of the automobile according to the present invention has been described above, the present invention is not limited to the specific mode of the embodiment, and various modifications can be made. Of course.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of an automobile to which an embodiment of the present invention is applied.

FIG. 2 is a plan view showing the configuration of the lower part of the vehicle body of the automobile shown in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG. 2, showing a configuration of a main part of an undercarriage of an automobile according to an embodiment of the present invention.

FIG. 4 is a perspective view showing a schematic configuration of a storage unit.

[Explanation of symbols]

 1 Car 2 Vehicle Cabin 5 Dash Panel 6 Instrument Panel 7 Floor Panel 9L, 9R Side Sill 10L, 10R Frame 11 Garnish 14 Storage 18 Cover 19 Propeller Shaft 20 Exhaust Pipe 21 Floor 72 Front Floor Panel 74 Rear Floor Panel

Claims (11)

[Claims] 1. A lower structure of an automobile, comprising: a floor surface of a passenger compartment; and left and right side sills extending in the vehicle front-rear direction at both ends in the vehicle width direction of the floor surface, wherein the floor surface is in the vehicle width direction. A lower structure for an automobile, which is substantially flat over the whole and is formed at substantially the same height as the upper ends of the left and right side sills. 2. An accommodating portion for accommodating in-vehicle components is formed below the floor surface which is substantially flat over the entire width direction of the vehicle and is substantially level with the upper end portions of the left and right side sills. The substructure of the automobile according to claim 1, wherein: 3. A lower component is disposed below the floor surface that is substantially flat over the entire width direction of the vehicle and is formed at substantially the same height as the upper ends of the left and right side sills. The substructure of the automobile according to claim 1. 4. An accommodating portion for accommodating vehicle-mounted parts is formed below the floor surface that is substantially flat over the entire width direction of the vehicle and is substantially the same height as the upper ends of the left and right side sills, The undercarriage of an automobile according to claim 1, wherein lower parts are arranged. 5. The substructure of the automobile according to claim 2, wherein the storage portion is formed in a region having a vertical length of the left and right side sills. 6. The substructure of the automobile according to claim 3, wherein the lower component is arranged in a region having a vertical length of the left and right side sills. 7. The storage portion is formed in a region of a vertical length of the left and right side sills, and the lower component is arranged in a region of a vertical length of the left and right side sills. The substructure of the automobile according to claim 4, wherein 8. The substructure of the automobile according to claim 2, 4, 5, or 7, wherein the vehicle-mounted component is a control device. 9. The undercar structure of an automobile according to claim 2, 4, 5 or 7, wherein the on-vehicle component is an electrical component. 10. The substructure of the automobile according to claim 3, 4, 6 or 7, wherein the lower component is an exhaust system component. 11. The substructure of the automobile according to claim 3, 4, 6, or 7, wherein the lower component is a power system component.