JP2007245851A - Automobile body structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automobile body structure capable of effectively reducing the size/weight of an automobile body while necessarily and ensuring a sufficient space for occupants. <P>SOLUTION: A pair of right and left rear seats 12, 12 are installed diagonally backward of the right and left sides of a driver's seat 10 installed in the vicinity of a center part in the vehicle width direction above a cabin floor 3 so as to hold a rear portion of the driver's seat 10 from the right and left sides. The cabin floor 3 comprises a floor tunnel 22 projecting in a vicinity of a center in the vehicle width direction of its upper surface part and extending in the longitudinal direction, and a floor side part 20 formed between side sills 2 installed on the right and left sides of a car body 1 and the floor tunnel 22. The driver's seat 10 is installed above the floor tunnel 22, and an upper surface part of the floor side part 20 is constituted so that the installation height of its rear part with feet of an occupant seated in a rear seat 12 are placed thereon is lower than the installation height of its front part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle body structure in which a driver's seat is disposed in the vicinity of the center in the vehicle width direction on a passenger compartment floor.

In recent years, compact and lightweight automobiles have been demanded in order to reduce fuel consumption. In such an automobile, it is necessary to devise a method for ensuring as much space as possible for passengers in a narrow passenger compartment. For example, in Patent Document 1 below, a driver's seat is disposed near the center in the vehicle width direction in the vehicle interior, that is, at a position away from both the left and right sides of the vehicle body, thereby providing a wide space on the left and right of the passenger (driver). Ensuring is done.
JP 7-156807 A

  However, in the vehicle body structure disclosed in Patent Document 1, the passenger's rear seat is disposed at a position separated by a predetermined distance from the rear end portion of the driver's seat, like a normal automobile. Therefore, in order to secure a large space for the passenger seated in the rear seat, the space between the rear seat and the driver seat must be increased, and the longitudinal length of the vehicle body is accordingly increased. There was a problem that the (full length) would become long.

  The present invention has been made in view of the circumstances as described above, and is a vehicle body structure for an automobile that can effectively reduce the size and weight of the vehicle body while ensuring a sufficient space for passengers. The purpose is to provide.

  In order to solve the above-described problems, the present invention is provided with a driver's seat disposed near the center in the vehicle width direction on the passenger compartment floor, and diagonally rearward on the left and right sides of the driver's seat. A vehicle body structure including a pair of left and right rear seats, wherein the pair of left and right rear seats is installed at a position such that a front portion thereof partially overlaps the driver seat in a side view. The passenger compartment floor is formed between a floor tunnel projecting near the center in the vehicle width direction of the upper surface portion and extending in the front-rear direction, side sills installed on the left and right sides of the vehicle body, and the floor tunnel. The driver's seat is installed on the floor tunnel, and the upper surface portion of the floor side portion is a rear portion of the occupant seated on the rear seat. The feet of Min installation height is characterized in that it is configured to be lower than the installation height of the front portion (claim 1).

  According to the present invention, the pair of left and right rear seats are disposed obliquely rearward on the left and right sides of the driver seat disposed near the center in the vehicle width direction, and the pair of left and right rear seats are arranged in the front-rear direction. Since the installation position is set so that the front part of each rear seat overlaps with the driver seat in a side view, the indoor space required for disposing the driver seat and the rear seat The front-rear length can be shortened, and the vehicle body can be made more compact and lighter accordingly. In addition, the driver's seat is installed on a floor tunnel protruding in the vehicle width direction of the passenger compartment floor, and a rear seat is formed on the floor side portion formed between the floor tunnel and the side sill. Since the foot of the passenger seated on the seat is placed, the front of the foot portion of the rear seat passenger is prevented from being blocked by the driver's seat, and the front and rear space of the foot portion is secured more widely. be able to. Further, the installation height of the rear part of the floor side part on which the foot of the rear seat occupant is placed is made lower than the installation height of the front part, thereby reducing the bending angle of the knee of the rear seat occupant. There is also an advantage that the seating posture can be made easier.

  It is preferable that the upper surface portion of the floor side portion is constituted by a rearwardly inclined surface whose height decreases toward the rear side of the vehicle body.

  In this case, for example, unlike the case where the installation height of the upper surface portion of the floor side portion is changed by configuring the floor side portion in a stepped shape, the upper surface portion of the floor side portion is formed by a smooth surface. Since it can be configured, there is an advantage that the appearance in the passenger compartment can be maintained well. Moreover, since the feet of the upper rear seat occupant can be placed in a state where the toes are raised along the upper surface of the floor side portion inclined downward, the seating posture of the rear seat occupant is more natural and strutable. There is an advantage that the seating posture of the rear seat occupant can be maintained in a stable state even under a situation where a forward inertial force due to the deceleration G or the like during driving can be applied.

  It is preferable that the upper surface portion of the floor side portion has a recess at a position where an occupant trying to get into the vehicle compartment through the entrance on the side of the vehicle body places his / her foot.

  In this way, when the occupant's feet who want to get into the vehicle compartment through the entrance on the side of the vehicle body are stepped into the recess provided in the upper surface portion of the floor side portion, Since the height of the scaffolding can be kept low, the passenger can get into the passenger compartment more smoothly. In other words, an occupant trying to get into the passenger compartment needs to bend down so as not to hit his head against the roof of the vehicle body, but the presence of the recess as described above may reduce the height of the scaffold when getting in. Thus, the amount of crouching can be reduced by that amount, and the occupant can get into the passenger compartment more smoothly.

  The floor tunnel is formed so that the width dimension becomes smaller toward the rear side of the vehicle body, and the pair of left and right rear seats are arranged so that the front surfaces thereof face obliquely outward in the vehicle width direction. (Claim 4).

  In this way, when the planar shape of the floor tunnel is formed so that the width dimension thereof becomes smaller toward the rear side of the vehicle body, the rear portion of the floor side portion on which the foot of the rear seat occupant is placed is placed. On the front part of the floor tunnel where the width dimension becomes relatively large while effectively avoiding that the width dimension (lateral space of the foot portion of the rear seat occupant) is greatly narrowed by the floor tunnel, There is an advantage that a wide space can be secured for the feet of the occupants seated in the driver seat. Furthermore, by arranging the rear seat so that the front surface faces obliquely outward in the vehicle width direction, a floor tunnel in which the passenger seated in the rear seat has the planar shape of the rear constriction as described above. Since the feet can be arranged substantially parallel to the step portion between the upper surface portion of the floor and the floor side portion (that is, the side wall surface portion of the floor tunnel), the step portion comes close to the feet of the rear seat occupant. This can be effectively avoided, and there is an advantage that the foot space of the rear seat occupant can be ensured substantially equally to the left and right.

  The step portion between the floor side portion and the upper surface portion of the floor tunnel is formed so as to extend obliquely downward on the outer side in the vehicle width direction in a cross-sectional view and to become smaller as the inclination angle reaches the front side of the vehicle body. (Claim 5).

  In this way, the front part of the step part formed between the floor side part and the upper surface part of the floor tunnel, that is, the part straddled by the occupant trying to get into the driver's seat among the step part, It can be constituted by a gentle inclined surface with a small inclination angle, and the boarding / alighting ability to the driver's seat can be effectively improved. On the other hand, by increasing the inclination angle of the rear part of the step part (approaching it vertically), the width dimension of the rear part of the floor side part on which the foot of the rear seat occupant is placed is greatly narrowed by the inclination of the step part. Since it can be effectively avoided, the foot space of the rear seat occupant can be secured more widely.

  As described above, according to the vehicle body structure of the automobile of the present invention, it is possible to effectively reduce the size and weight of the vehicle body while ensuring a sufficient space for passengers.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  1 to 3 show a vehicle body structure according to an embodiment of the present invention. The vehicle body structure includes a vehicle compartment floor 3 that forms a floor portion of the interior (vehicle compartment) of the vehicle body 1, and a driver seat 10 that is disposed near the vehicle width direction center on the vehicle compartment floor 3. A pair of left and right rear seats 12, 12 disposed diagonally rearward on both the left and right sides of the driver seat 10, and the vehicle body 1 as an entrance (entrance / exit) for the driver seat 10 and the rear seat 12. Side opening portions 5 and 5 formed on both left and right side portions, and hinge-type side doors 14 and 14 which are doors for opening and closing the side opening portions 5 and 5 and whose front end portions are pivotally attached to the vehicle body 1 have. A steering wheel 32 is installed on the front side of the driver seat 10 so that the steering wheel 32 extends rearward from the vehicle width direction central portion of the instrument panel 30 installed at the front end of the vehicle interior. is set up.

  As shown in FIGS. 4 and 5, the passenger compartment floor 3 is provided on the upper surface of the vehicle body floor 3 so as to project in the vicinity of the center in the vehicle width direction and extend in the front-rear direction, and on the left and right sides of the vehicle body 1. A pair of left and right floor side portions 20, 20 installed between the side sills 2, 2 and the floor tunnel 22 at a position lower than the upper surface of the floor tunnel 22, and the floor tunnel 22 and the floor side portion 20. The floor rear part 24 which consists of a substantially flat surface installed in the back side. The floor rear part 24 is installed at a position higher than the rear end part of the floor side part 20, and the floor side part 24 is provided via a step part 25 rising upward from the rear end part of the floor side part 20. 20 and the floor tunnel 22. A fuel tank 36 is installed in a space formed on the lower side of the floor rear portion 24.

  As shown in FIGS. 2 and 5, the floor tunnel 22 is formed in the shape of a rear constriction in a plan view in which the width dimension becomes smaller toward the rear side of the vehicle body 1. Correspondingly, the floor side portion 20 is formed in a shape of rearward expansion in a plan view in which the width dimension increases toward the rear side of the vehicle body 1. As shown in FIG. 7, feet of passengers seated on the driver seat 10 and the rear seat 12 are placed on the top surfaces of the floor tunnel 22 and the floor side portion 20. . That is, the feet of passengers seated on the driver's seat 10 are placed on the front part of the floor tunnel 22, and the feet of passengers seated on the rear seats 12 are placed on the rear part of the floor side portion 20. It is supposed to be placed.

  A concave portion 40 shown in FIGS. 2 to 5 and the like is provided on the upper surface portion of the floor side portion 20. The recess 40 is provided at a position where an occupant who wants to get into the vehicle compartment through the side opening 5 formed in the side surface of the vehicle body 1 can easily place his / her foot. By stepping in, it is comprised so that the height of the scaffold at the time of a passenger | crew getting into a vehicle interior may be suppressed low.

  Further, as shown in FIG. 4, the floor side portion 20 is installed so as to extend from the lower end portion of the dash panel 7 to the rear side of the vehicle body in an inclined state that is rearwardly lowered. On the other hand, the upper surface portion of the floor tunnel 22 is installed so as to extend substantially horizontally across the longitudinal direction of the vehicle body 1. For this reason, the height of the side wall surface portion of the floor tunnel 22, that is, the height of the stepped portion 21 formed between the upper surface portion of the floor tunnel 22 and the floor side portion 20 becomes lower toward the front side of the vehicle body 1. It is formed so as to increase toward the rear side.

  As shown in FIG. 6, the stepped portion 21 is installed so as to extend obliquely downward on the outer side in the vehicle width direction in a sectional view. 6B, FIG. 6B is a cross-sectional view taken along the line II of FIG. 6A, FIG. 6C is a cross-sectional view taken along the line II-II on the rear side, and FIG. d) is a sectional view along the III-III line on the further rear side. As can be seen from the cross-sectional views of FIGS. 6B to 6D, the stepped portion 21 has an inclination angle that is smaller toward the front side of the vehicle body 1 and larger toward the rear side. Is formed.

  As shown in FIGS. 2 and 4, the driver seat 10 includes a seat cushion 101 and a seat back 102. The driver seat 10 includes a bracket 101 a provided on the lower surface of the seat cushion 101. It is fixed to the upper surface of the floor tunnel 22. On the other hand, the pair of left and right rear seats 12, 12 each have a seat cushion 121 and a seat back 122, and the rear of the floor is interposed via a bracket 121a provided on the lower surface of the seat cushion 121. It is fixed to the upper surface of the part 24. The pair of left and right rear seats 12, 12 are arranged in an inverted C shape in plan view so that the front surfaces thereof face obliquely outward in the vehicle width direction, and the rear portion of the driver seat 10 Is installed in such a state that the front portion of each of the rear seats 12 and 12 (the seat cushion 121) partially overlaps the driver seat 10 in a side view. Further, as shown in FIG. 2, the rear seat 12 avoids the overhanging portion 34 of the rear wheel wheel house that protrudes from the inner wall surface of the rear end portion of the passenger compartment that is formed in a narrowed rear portion. It is arranged.

  As described above, according to the above configuration, the pair of left and right rear seats 12 and 12 are disposed obliquely rearward on both the left and right sides of the driver's seat 10 disposed near the center in the vehicle width direction. Since the front and rear installation positions of the pair of left and right rear seats 12 and 12 are set so that the front portions of the rear seats 12 and 12 partially overlap the driver seat 10 in a side view, The front-rear length of the indoor space required for disposing the driver seat 10 and the rear seat 12 can be shortened, and the vehicle body 1 can be made more compact and lighter accordingly. Further, the driver's seat 10 is installed on a floor tunnel 22 projecting in the vicinity of the vehicle floor 3 in the vehicle width direction, and a floor side portion 20 formed between the floor tunnel 22 and the side sill 2. Since the foot of the occupant seated on the rear seat 12 is placed on the front, the front of the foot portion of the occupant of the rear seat is prevented from being blocked by the driver seat 10. The space before and after can be secured more widely.

  In particular, in the above-described configuration, the floor side portion 20 is installed in an inclined state where the height decreases toward the rear side of the vehicle body 1, so that the rear side of the floor side portion 20 on which the feet of the rear seat occupant are placed is placed. As shown in FIG. 9, as a result, the knee folding angle E of the rear seat occupant can be made relatively small to make the occupant's seating posture easier. Can do. In addition, since the feet of the upper rear seat occupant can be placed in a state where the toes are raised along the upper surface of the floor side portion 20 inclined downward, the seating posture of the rear seat occupant can be more naturally strutted. Therefore, there is an advantage that the seating posture of the rear seat occupant can be maintained in a stable state even under a situation in which a forward inertia force due to the deceleration G or the like during driving is applied.

  Further, as in the above-described embodiment, a recess 40 is provided on the upper surface portion of the floor side portion 20, and an occupant's foot trying to get into the vehicle interior through the side opening 5 formed in the side surface portion of the vehicle body 1 is first used to form the recess 40. When the vehicle is stepped on, the height of the scaffold when the occupant gets into the vehicle interior can be kept low, so that the occupant can get into the vehicle more smoothly. That is, an occupant trying to get into the passenger compartment needs to bend down so as not to hit his head against the roof portion of the vehicle body 1, but the presence of the recess 40 as described above reduces the height of the scaffold when getting in. If so, the amount of crouching by that amount is small, and the passenger can get into the passenger compartment more smoothly. Moreover, since this recessed part 40 becomes a mark which shows the appropriate stepping-on position on the floor side part 20, the passenger | crew can always step into an appropriate position at the time of boarding into a vehicle interior, and the foot was used as the base point. It becomes possible to move to the driver's seat 10 on the back side with a natural posture.

  Further, when the planar shape of the floor tunnel 22 is formed so that the width dimension decreases toward the rear side of the vehicle body 1 as in the above embodiment, the foot space of the occupant seated on the rear seat 12 is While effectively avoiding being greatly narrowed by the floor tunnel 22, it is possible to secure a wider foot space for an occupant seated on the driver's seat 10. That is, the floor tunnel 22 is formed in a rear-squeezed shape in a plan view, and the floor side portion 20 is formed in a rear-expanded shape in a plan view accordingly. As shown in FIG. (Driver Seat) Both the width dimension A of the front portion of the floor tunnel 22 that becomes the foot space of the passenger and the width dimension B of the rear portion of the floor side portion 20 that becomes the foot space of the rear seat passenger can be secured large. . In addition, since the front portion of the floor tunnel 22 is widened, there is an advantage that the degree of freedom in layout of an exhaust pipe and the like disposed below the floor tunnel 22 is increased.

  Further, as in the above embodiment, when the pair of left and right rear seats 12, 12 are arranged so that the front surfaces thereof face obliquely outward in the vehicle width direction, as shown in FIG. Since the occupant seated on the seat 12 can place his / her feet substantially in parallel with the side wall surface portion (that is, the stepped portion 21) of the floor tunnel 22 formed to be narrowed in plan view, the occupant of the rear seat There is an advantage that the stepped portion 21 can be effectively avoided from coming close to the foot, and the foot space for the rear seat occupant can be ensured substantially equally.

  Further, by disposing the rear seat 12 in the above-described direction, for example, an obstacle such as the overhanging portion 34 of the wheel house for the rear wheel is present at the rear end of the passenger compartment, so that the rear seat 12 Even in a situation where the installation space in the rear part of the vehicle is limited, the rear seat 12 can be installed without problems while avoiding the obstacles while ensuring a relatively wide seat width. can do. That is, as shown in FIG. 8, when the rear seat 12 is arranged straight forward (see the two-dot chain line in the figure), the overhanging portion 34 of the wheel house on the rear side (and the front side) In the state avoiding the driver seat 10 at the rear end), the seat width can be secured only by a relatively small width D, while the rear seat 12 is directed obliquely forward in the vehicle width direction as described above. In this case, a width C that is relatively larger than the width D can be secured as the sheet width.

  Further, as shown in FIG. 6, the step portion 21 composed of the side wall surface portion of the floor tunnel 22 is installed so as to extend obliquely downward on the outer side in the vehicle width direction in a cross-sectional view, and the inclination angle is set to the front side of the vehicle body 1. When it is made so small that the front portion of the stepped portion 21 that the occupant needs to straddle when getting into the driver's seat 10 can be configured by a gently inclined surface with a small inclination angle, The boarding / alighting property to the driver's seat 10 can be effectively improved. On the other hand, by increasing the inclination angle of the rear part of the step part 21 (approaching it vertically), the width dimension of the rear part of the floor side part 20 on which the foot of the rear seat occupant is placed (dimension B in FIG. 7). Can be effectively avoided from being greatly narrowed by the inclination of the stepped portion 21, so that a wider foot space can be secured for the rear seat occupant.

  In the above embodiment, in order to reduce the installation height of the rear part of the floor side part 20 on which the feet of the occupants seated on the rear seat 12 are placed, the floor side part 20 is inclined downwardly. However, the installation height of the rear part of the floor side part 20 may be lowered by forming the floor side part 20 in a stepped shape, for example. However, the above-described embodiment in which the upper surface of the floor side portion 20 is a smooth inclined surface is more favorable than the above configuration in that the appearance of the floor portion can be favorably maintained and the rear seat occupant has a stable toe-up posture. It is advantageous in that it can be seated.

  Alternatively, the inclination angle of the stepped portion 21 formed of the side wall surface portion of the floor tunnel 22 may be increased toward the front side of the vehicle body 1 and decreased toward the rear side, contrary to the above. In this case, the width of the upper surface portion (foot space of the front seat occupant) can be secured wider in the front portion of the floor tunnel 22 where the feet of the front seat (driver seat) occupant are placed, and the rear By configuring the rear portion of the step portion 21 that regulates the foot space of the seat occupant with a gently inclined surface, there is an advantage that the pressure feeling exerted by the step portion 21 on the rear seat occupant can be effectively reduced.

1 is a diagram showing an overall configuration of a vehicle body structure according to an embodiment of the present invention. It is a top view which shows the condition of a vehicle interior. It is a perspective view of the side opening part periphery of a vehicle body. It is a side view which shows the condition of a vehicle interior. It is a perspective view which shows the shape of a vehicle interior floor. It is a figure for demonstrating the detailed shape of the floor tunnel of a vehicle interior floor, (a) is a top view of a vehicle interior floor, (b) is sectional drawing along the II line | wire of (a), (c). (A) is a sectional view taken along line II-II, and (b) is a sectional view taken along line III-III in (a). It is a figure for demonstrating the condition of the vehicle interior in the state in which the passenger | crew seated on the driver's seat and the rear seat. It is a figure for demonstrating the relationship between the arrangement | positioning direction and seat width of a rear seat. It is a figure for demonstrating the condition of the vehicle interior in the state in which the passenger | crew seated on the backseat seat.

Explanation of symbols

1 Car body 2 Side sill 3 Car compartment floor 5 Side opening (entrance / exit)
10 Driver's seat 12 Rear seat 20 Floor side part 21 Step part 22 Floor tunnel 40 Recessed part

Claims (5)

A vehicle body structure having a driver's seat disposed near the center in the vehicle width direction on the passenger compartment floor and a pair of left and right rear seats disposed obliquely rearward on both the left and right sides of the driver's seat Because
The pair of left and right rear seats is installed at a position such that a front portion thereof partially overlaps the driver seat in a side view,
The passenger compartment floor is formed between a floor tunnel projecting in the vehicle width direction center of the upper surface portion and extending in the front-rear direction, side sills installed on the left and right sides of the vehicle body, and the floor tunnel. Floor side part,
The driver seat is installed on the floor tunnel,
The upper surface part of the floor side part is configured such that the installation height of the rear part of the floor side part on which the foot of the occupant seated on the rear seat is placed is lower than the installation height of the front part. A vehicle body structure characterized by that. The vehicle body structure according to claim 1,
The vehicle body structure according to claim 1, wherein the upper surface portion of the floor side portion is formed by a rearwardly inclined surface whose height decreases toward the rear side of the vehicle body. The vehicle body structure according to claim 1 or 2,
The vehicle body structure according to claim 1, wherein the upper surface portion of the floor side portion has a recess at a position where a rider who wants to get into the vehicle interior through the entrance on the side of the vehicle body places his / her foot. The vehicle body structure according to any one of claims 1 to 3,
The floor tunnel is formed so that the width dimension decreases toward the rear side of the vehicle body,
The vehicle body structure for an automobile, wherein the pair of left and right rear seats are arranged such that the front surfaces thereof face obliquely outward in the vehicle width direction. The vehicle body structure according to any one of claims 1 to 4,
The step portion between the floor side portion and the upper surface portion of the floor tunnel is formed so as to extend obliquely downward on the outer side in the vehicle width direction in a cross-sectional view and to become smaller as the inclination angle reaches the front side of the vehicle body. A vehicle body structure characterized by that.

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