JP6997640B2 - vehicle - Google Patents

Description

The present invention relates to a vehicle in which energy storage such as a fuel tank is arranged under the floor of the front seat.

Conventionally, a convex portion has been provided on the floor panel below the front seats (driver's seat and passenger seat), and energy storage such as a fuel tank and a high-voltage battery has been arranged inside the convex portion to expand the passenger compartment space. , So-called center tank layout type vehicles are known.

In addition, the rear seat back can be folded forward and stored in the front foot space (recessed floor panel) together with the seat cushion to expand the luggage space, so-called dive-down vehicle seats for the rear seats. Is known (see FIG. 7 of Patent Document 1).

Japanese Unexamined Patent Publication No. 2006-15799

By the way, regarding the cabin space of such a vehicle, we would like to secure a living space where passengers can spend comfortably, and also secure a luggage space where a large amount of luggage such as long luggage can be loaded. There is a request.

Therefore, in a vehicle in which a convex portion is provided on the floor panel below the front seat and energy storage is arranged inside the convex portion, it is conceivable to apply a vehicle seat for the rear seat that can dive down to the front seat. Be done.

However, the seat back and seat cushion have a built-in highly rigid seat frame. When the front seats are dive down, the seat frame is placed at approximately the same height as the convex portion of the floor panel. Therefore, when a collision load is input from the front of the vehicle, the seat frame becomes a load path (load transmission path) as a structural member, and the collision load may be input to the energy storage via the convex portion of the floor panel. ..

The present invention has been made in consideration of such a problem, and energy storage such as a fuel tank and a high-voltage battery is arranged under the leg of the front seat where dive down is possible to create a vehicle interior space. It is intended to provide a vehicle capable of protecting energy storage from collision load inputs while ensuring a wide range.

According to the present invention, the vehicle interior floor is fixed to the upper surface of the convex portion of the vehicle interior floor via a leg portion having a front fixing portion and a rear fixing portion, and is formed in front of and lower than the convex portion. In a vehicle having a front seat capable of dive down in the concave portion of the vehicle, when the vehicle is viewed from the side surface, the area inside the convex portion, behind the front fixing portion of the leg portion, and the leg portion. It is characterized in that the energy storage is arranged in the area in front of the rear fixing portion.

According to the present invention, the energy storage is arranged in the area inside the convex portion, behind the front fixing portion of the front seat leg portion and in front of the rear fixing portion of the front seat leg portion. When a collision load is input from the front of the vehicle with the front seats dive down, the legs fixed to the upper surface of the convex part of the passenger compartment floor transmit the collision load from the front (load transmission path). And prevents the collision load from being input to the energy storage.

Therefore, energy storage such as a fuel tank and high-voltage battery should be placed under the legs of the front seat where dive down is possible to secure a large cabin space and protect the energy storage from collision load input. Can be done.

Further, it is preferable that one end side of the front seat has a link arm connected to the seat cushion of the front seat, and the other end side of the link arm is connected in the vicinity of the front fixing portion of the leg portion.

According to such a configuration, when the collision load is input from the front of the vehicle with the front seat dive down, the collision load input to one end side of the link arm is fixed to the front from the other end side of the link arm. It is transmitted to the legs through the part. Therefore, the energy storage can be reliably protected from the input of the collision load.

Further, it is preferable that the convex portion includes a cross member arranged on the front side of the energy storage, and the front fixing portion is fixed to the cross member.

According to such a configuration, when the collision load is input from the front of the vehicle with the front seat dive down, the collision load from the front is dispersed and absorbed by the legs and the cross member. Energy storage can be reliably protected from collision load inputs.

Furthermore, it is preferable to have a rear seat capable of dive down in the concave portion of the passenger compartment floor formed at a position rearward and lower than the convex portion.

According to such a configuration, when a collision load is input from the rear of the vehicle with the rear seat dive down, the legs fixed to the convex portion transmit the collision load from the rear (load transmission). It acts as a path) and prevents collision loads from being input to the energy storage.

According to the present invention, energy storage such as a fuel tank and a high-voltage battery is arranged under the leg of the front seat where dive down is possible to secure a large space in the passenger compartment, and the energy storage is input to the collision load. Can be protected from.

It is a schematic plan view of the vehicle which concerns on embodiment of this invention. It is a schematic side view of the vehicle shown in FIG. It is an enlarged side view which enlarged the lower part of the passenger seat shown in FIG. It is a schematic plan view which shows the state which the passenger seat and the rear seat are dive-down stowed. It is a schematic side view which shows the state which the passenger seat and the rear seat are dive-down stowed.

Hereinafter, the vehicle according to the present invention will be described in detail with reference to the accompanying drawings with reference to suitable embodiments. In the drawings described below, the front-back, left-right, and up-down directions indicated by the arrows all refer to directions based on a occupant (seat person) (not shown) who sits in the front seat of the vehicle 10.

FIG. 1 is a schematic plan view of a vehicle 10 according to an embodiment of the present invention. As shown in FIG. 1, the driver's seat (right front seat) 14, the passenger seat (left front seat) 16, the rear seat (right rear seat) 18, and the rear seat (left rear seat) are on the passenger compartment floor 12 of the vehicle 10. ) 20 is arranged, and a luggage compartment 22 is provided behind the rear seat 18 and the rear seat 20.

FIG. 2 is a schematic side view of the vehicle 10 as seen from the passenger seat 16 and the rear seat 20 side. As shown in FIG. 2, a convex portion 24 projecting upward is provided below the passenger seat 16 on the passenger compartment floor 12, and a fuel tank 26 is arranged below the convex portion 24. On the upper surface of the convex portion 24, a substantially arch-shaped leg portion 28 is provided along the front-rear direction of the vehicle 10. In the leg portion 28, the front fixing portion 30 on the front side and the rear fixing portion 32 on the rear side are fixed to the front cross member 38 and the middle cross member 40 via the upper surface of the convex portion 24 by bolts 34 and 36. There is.

The passenger seat 16 includes a seat back 42, a seat cushion 44, a headrest 46, a dive-down mechanism portion 48 that supports the seat back 42 and the seat cushion 44 so as to be tiltable forward via a rotation shaft (not shown), and a seat cushion. It is composed of a metal link arm 50 rotatably attached to the front portion of the 44. Metal seat frames 52 and 54 are built in the seat back 42 and the seat cushion 44.

The lower end of the dive-down mechanism portion 48 is attached slightly to the rear of the center of the leg portion 28 via a rotation shaft (not shown). When the upper end of the lever 56 is rotated backward in the state where the headrest 46 is removed from the seat back 42, the dive-down mechanism portion 48 has the seat back 42 and the seat cushion folded forward as shown in FIG. It is possible to lean forward with 44.

The lower end of the link arm 50 is rotatably attached to the upper surface of the convex portion 24 of the vehicle interior floor 12, particularly in the vicinity of the front fixing portion 30 of the leg portion 28. As shown in FIG. 5, the link arm 50 can tilt forward following the displacement of the seat cushion 44 when the seat cushion 44 is displaced forward due to the rotation operation of the lever 56. In this way, the passenger seat 16 can dive down to the foot space (recessed portion of the passenger compartment floor 12) formed in front of and lower than the convex portion 24 of the passenger compartment floor 12.

When the passenger seat 16 is dive down, the headrest 46 removed from the seat back 42 is stored in a headrest storage portion (not shown) in the vehicle interior.

Below the rear seat 20 of the vehicle interior floor 12, an inclined portion 58 extending diagonally upward toward the rear is provided, and the rear seat 20 is fixed to the inclined portion 58 via the leg portion 60.

The rear seat 20 is rotatably attached to the seat back 62, the seat cushion 64, the headrest 66, the dive-down mechanism portion 68 that supports the seat back 62 so as to be able to lie down forward, and the front portion of the seat cushion 64. It is composed of a metal link arm 70 and a metal link arm 70. A string-shaped operation portion 72 is provided on the upper portion of the seat back 62. In FIGS. 2 and 5, the seat frame incorporated in the seat back 62 and the seat cushion 64 of the rear seat 20 is not shown.

The lower end of the dive-down mechanism portion 68 is attached slightly to the front of the center of the leg portion 60, and the lower end of the link arm 70 is rotatably attached to the passenger compartment floor 12 in front of the inclined portion 58.

With the headrest 66 removed from the seat back 62, when the string-shaped operating portion 72 at the top of the seat back 62 is pulled upward, the seat back 62 is folded forward and the seat cushion is folded as shown in FIG. It falls forward together with 64 and the dive down mechanism portion 68. That is, the rear seat 20 can dive down to the foot space (recessed portion of the vehicle interior floor 12) formed in front of and lower than the inclined portion 58 of the vehicle interior floor 12.

When the rear seat 20 is dive down, the headrest 66 removed from the seat back 62 is stored in a headrest storage portion (not shown) in the vehicle interior.

As shown in FIG. 2, a flat plate-shaped panel 74 is housed in the luggage compartment 22. As shown in FIGS. 4 and 5, a flat surface from the passenger seat 16 to the luggage compartment 22 is formed by bridging the panel 74 between the passenger seat 16 and the rear seat 20 that have been dive down. As a result, the luggage space is expanded, and a long luggage or the like can be loaded on the vehicle 10.

FIG. 3 is an enlarged side view of the lower part of the passenger seat 16. In this embodiment, the vehicle interior floor 12 is composed of a dashboard lower panel 76, a front cross member 38, a front floor panel 78, a middle cross member 40, and a rear floor panel 80 from the front to the rear. The floor.

As shown in FIG. 3, the front floor panel 78 has a front vertical wall portion 82 extending diagonally upward and rearward from the dashboard lower panel 76, and a horizontal portion extending in the horizontal direction from the upper end portion 84 of the front vertical wall portion 82. It has a rear vertical wall portion 90 extending diagonally downward and rearward from the rear end of the horizontal portion 88 and connected to the rear floor panel 80.

The front cross member 38 is formed in a trapezoidal cross section, and is provided at a position in contact with the front vertical wall portion 82 and the horizontal portion 88 of the front floor panel 78. The front cross member 38 is bridged between the left and right side sills (not shown) below the front side of the passenger seat 16 to support the lower surface of the front floor panel 78.

The middle cross member 40 is formed in a box shape in cross section, and is provided at the lower portion on the rear end side of the horizontal portion 88 of the front floor panel 78. The middle cross member 40 is bridged between the left and right side sills (not shown) below the rear side of the passenger seat 16 to support the lower surface of the front floor panel 78.

That is, in this embodiment, the convex portion 24 of the vehicle interior floor 12 is composed of the rear side of the front cross member 38, the lower side of the horizontal portion 88 of the front floor panel 78, and the front side of the middle cross member 40. To.

The front fixing portion 30 of the leg portion 28 is attached to the front cross member 38 via the horizontal portion 88 at a position slightly rearward from the upper end portion 84 of the front floor panel 78. The rear fixing portion 32 of the leg portion 28 is attached to the middle cross member 40 via the horizontal portion 88 at a position slightly forward from the rear vertical wall portion 90 of the front floor panel 78.

When the vehicle 10 is viewed from the side surface, the fuel tank 26 is a region between the front fixing portion 30 and the rear fixing portion 32, that is, the lower side of the convex portion 24 and behind the front fixing portion 30 and the rear fixing portion 32. It is arranged in the area R in front of it. In other words, the fuel tank 26 is arranged in the region R below the convex portion 24 when the vehicle 10 is viewed from the side surface and is sandwiched between the front cross member 38 and the middle cross member 40.

The vehicle 10 according to the embodiment of the present invention is basically configured as described above, and next, the operation when a collision load is input to the vehicle 10 from the front will be described with reference to FIG. do.

FIG. 5 is a schematic side view showing a state in which the passenger seat 16 of the vehicle 10 is dive down. Focusing on the positions of the highly rigid link arm 50 and the seat frames 52 and 54, both are located above the front vertical wall portion 82 of the convex portion 24 and the fuel tank 26.

Further, the fuel tank 26 is a region R below the convex portion 24, behind the front fixing portion 30 of the leg portion 28 and in front of the rear fixing portion 32 of the leg portion 28, in other words, the front cross member 38. It is arranged in the area R sandwiched between the middle cross member 40 and the middle cross member 40.

Therefore, when the collision load is input from the front of the vehicle 10 with the passenger seat 16 dive down, the collision load from the front is not input to the fuel tank 26, and the upper surface of the convex portion 24 (front floor panel). It is input to the leg portion 28 fixed to the horizontal portion 88) of the 78. The impact load input to the leg 28 is transmitted to the rear of the front floor panel 78 via the leg 28 as a load path (load transmission path), and is also transmitted to the front cross member 38 to disperse. Is absorbed.

As described above, the vehicle 10 according to the embodiment of the present invention has the horizontal portion 88 (upper surface) of the convex portion 24 of the vehicle interior floor 12 via the leg portion 28 having the front fixing portion 30 and the rear fixing portion 32. In the vehicle 10 having a passenger seat 16 (front seat) capable of diving down in the foot space (recess) of the passenger compartment floor 12 formed in front of and lower than the convex portion 24 while being fixed to the vehicle 10. When viewed from the side surface, the fuel tank 26 (energy) is located in the region R inside the convex portion 24, behind the front fixing portion 30 of the leg portion 28 and in front of the rear fixing portion 32 of the leg portion 28. Storage) is arranged.

According to such a configuration, the fuel tank 26 is a region R inside the convex portion 24 and is fixed behind the front fixing portion 30 of the leg portion 28 of the passenger seat 16 and rearward of the leg portion 28 of the passenger seat 16. It is arranged in the region R in front of the portion 32. When a collision load is input from the front of the vehicle 10 with the passenger seat 16 dive down, the leg portion 28 fixed to the horizontal portion 88 (upper surface) of the convex portion 24 of the vehicle interior floor 12 has a collision load from the front. It acts as a load path (load transmission path) for transmitting the fuel tank 26, and prevents the collision load from being input to the fuel tank 26.

Therefore, energy storage such as a fuel tank 26 should be arranged under the leg 28 of the passenger seat 16 capable of dive down to secure a large space in the passenger compartment and protect the energy storage from the input of the collision load. Can be done.

Further, the passenger seat 16 has a link arm 50 having one end side connected to the seat cushion 44 of the passenger seat 16, and the other end side of the link arm 50 is connected to the vicinity of the front fixing portion 30 of the leg portion 28.

According to such a configuration, when the collision load is input from the front of the vehicle 10 with the passenger seat 16 dive down, the collision load input to one end side of the link arm 50 is the other end of the link arm 50. It is transmitted from the side to the leg 28 through the front fixing portion 30. Therefore, the fuel tank 26 can be reliably protected from the input of the collision load.

Further, the convex portion 24 includes a front cross member 38 arranged on the front side of the fuel tank 26, and the front fixing portion 30 is fixed to the front cross member 38.

According to such a configuration, when the collision load is input from the front of the vehicle 10 with the passenger seat 16 dive down, the collision load from the front is distributed to the legs 28 and the front cross member 38. Be absorbed. Therefore, the fuel tank 26 can be reliably protected from the input of the collision load.

Further, the rear seat (rear seat) 20 capable of dive down is provided in the concave portion of the passenger compartment floor 12 formed at a position rearward and lower than the convex portion 24.

According to such a configuration, even when a collision load is input from the rear of the vehicle 10 with the rear seat 20 dive down, the passenger seat 16 fixed to the convex portion 24 of the passenger compartment floor 12 The leg 28 acts as a load path (load transmission path) for transmitting a collision load from the rear. Therefore, it is prevented that the collision load is input to the fuel tank (energy storage) 26 under the passenger seat 16.

In the above embodiment, the fuel tank 26 is arranged below the convex portion 24 of the vehicle interior floor 12, but the present invention is not limited to this. For example, any energy storage such as a high-voltage battery or a hydrogen tank that stores energy as a drive source of the vehicle 10 can obtain the same effect regardless of which energy storage is arranged.

Further, in the above-described embodiment, the passenger seat 16 is fixed to the upper surface of the convex portion 24 of the vehicle interior floor 12, but if the dive down is possible, the passenger seat 16 can be slid in the front-rear direction. It may have a mechanism.

Further, not only the passenger seat 16 but also the driver's seat 14 may be configured to be able to dive down. For example, if both the driver's seat 14 and the passenger seat 16 are configured to be able to dive down, the passenger compartment space can be further expanded, and the occupant can stay in the car like a camper.

It goes without saying that the vehicle according to the present invention is not limited to the above-described embodiment and can adopt various configurations without departing from the gist of the present invention.

10 ... Vehicle 12 ... Vehicle floor 14 ... Driver's seat 16 ... Passenger seat 24 ... Convex part 26 ... Fuel tank 28 ... Legs 30 ... Front fixing part 32 ... Rear fixing part R ... Area

Claims (4)

It is fixed to the upper surface of the convex portion of the passenger compartment floor via the legs having the front fixing portion and the rear fixing portion, and dives into the concave portion of the passenger compartment floor formed in front of and lower than the convex portion. In vehicles with downable front seats
The convex portion of the vehicle interior floor includes a front vertical wall portion, a horizontal portion extending from the upper end portion of the front vertical wall portion, and a rear vertical wall portion extending diagonally downward and rearward from the rear end of the horizontal portion. And consists of
The front fixing portion of the leg portion is attached to the horizontal portion.
When the vehicle is viewed from the side, it is a region inside the convex portion, behind the position where the front fixing portion of the leg is attached, and from the position where the rear fixing portion of the leg is attached. A vehicle characterized by energy storage located in the area in front of it. In the vehicle according to claim 1.
The front seat has a link arm whose one end side is connected to the seat cushion of the front seat.
A vehicle characterized in that the other end side of the link arm is connected in the vicinity of the front fixing portion of the leg portion. In the vehicle according to claim 1 or 2.
In the area inside the convex portion, a cross member is arranged on the front side of the energy storage.
The vehicle characterized in that the front fixing portion is fixed to the cross member via the horizontal portion . In the vehicle according to any one of claims 1 to 3.
A vehicle characterized by having a rear seat capable of dive down in a concave portion of the passenger compartment floor formed at a position rearward and lower than the convex portion.

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