JP2009208580A - Rear part structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase a space of a cargo room in a rear part structure for a vehicle, and particularly for a small size car having the cargo room at the rear side of a cabin where front and rear seats are placed, to keep rigidity of the vehicle body rear part high, increase the cargo room capacity, and to attain high usability of the cargo room while keeping the spacious cabin and the maximum number of occupants in the vehicle. <P>SOLUTION: A floor recess portion 20 which is recessed to store cargo at the bottom portion is formed at a part positioned between at least a pair of rear wheel houses 15 in a rear floor panel 7, and a fuel tank 14 is placed at the lower surface side of the rear floor panel 7 between the floor recess portion 20 and either one of the right and left rear wheel houses 15. The floor recess portion 20 has a longitudinal recess portion 20a which is placed in parallel with the fuel tank 14 in a vehicle width direction and extends in a front and rear direction, and a transverse recess portion 20b which continues to a rear end of the longitudinal recess portion 20a and extends in the vehicle width direction, and is formed of the longitudinal recess portion 20a and the transverse recess part 20b to be formed into an L shape in a plane view. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rear structure of a vehicle, and in particular, a rear floor panel that forms a rear floor forming a rear floor of a passenger compartment is formed with a floor concave portion that is recessed so as to be able to accommodate luggage downward, and a rear floor panel between the floor concave portion and the rear wheel house. Vehicle equipment is disposed on the lower surface side of the vehicle.

  In a rear structure of a general vehicle such as an automobile, a rear floor of a passenger compartment is formed by a rear floor panel, and a pair of left and right rear wheel houses bulge toward the vehicle interior side at both ends in the vehicle width direction of the rear floor panel. In order to increase the rigidity of the rear part of the vehicle body, a rear cross member that is long in the vehicle width direction is attached to a pair of rear wheel houses, and the rear cross member is disposed below the rear floor panel and has a cross section. It is formed in an inverted hat shape, is coupled to the lower surface of the rear floor panel, and forms a closed section in cooperation with the rear floor panel (see, for example, Patent Document 1).

  In the rear structure of this type of vehicle, in the case where a cargo compartment is formed on the rear side of the passenger compartment with a seat back of the last row seat (rear seat), the cargo compartment floor is formed by a rear floor panel. The rear wheel house faces the luggage compartment. That is, a pair of rear wheel houses bulge toward the cargo compartment.

  In particular, in a small vehicle in which a luggage compartment is formed on the rear side of the passenger compartment where the front and rear seats are arranged, the rear end of the front floor panel and the front end of the rear floor panel are stepped in order to widen the passenger compartment. Connected via a raised kick-up section, the rear floor panel is positioned above the front floor panel, a rear seat is mounted on the front of the rear floor panel, and a fuel tank is placed on the lower surface of the rear floor panel in the vehicle width direction Widely arranged are well known.

Incidentally, in the vehicle of Patent Document 1, the floor panel is formed to be entirely flat, and the portion of the floor panel where the driver's seat is equipped is formed in a low floor portion lower than the other portions, and the lower surface of the floor panel. The front part of the fuel tank arranged on the side is arranged in parallel with the low floor part in the vehicle width direction.
JP 2005-170297 A

  In the rear structure of a vehicle such as an automobile equipped with a luggage compartment on the rear side of the passenger compartment, since a pair of rear wheel houses bulge toward the cargo compartment side, particularly the passenger compartment in which the front and rear seats are arranged. In a small vehicle with a cargo compartment formed on the rear side, the size of the vehicle body is limited, so there is a limit to expanding the cargo compartment, and the rear end of the front floor panel is used to widen the passenger compartment The rear floor panel is positioned above the front floor panel, and a rear seat is mounted on the front of the rear floor panel. When the fuel tank is disposed wide in the vehicle width direction on the lower surface side of the vehicle, the fuel tank and a rear cross member coupled to the lower surface of the rear floor panel to increase the rigidity of the rear portion of the vehicle body. , It is difficult to enlarge the luggage compartment by lowering the height position of the rear floor panel, it may be difficult to accommodate the luggage compartment of the desired relatively large luggage.

  Therefore, if the rear seat is configured so that the seat back is retractable, the rear seat can be folded forward and the cargo space can be enlarged, but of course the occupant is seated on the rear seat with the seat back folded forward. In this state, the maximum number of occupants of the vehicle cannot be secured, that is, the occupant transportability deteriorates.

  The object of the present invention is to enlarge the cargo compartment in the rear structure of the vehicle so that a desired relatively large load can be accommodated in the cargo compartment, particularly after the passenger compartment in which front and rear seats are arranged. In the case of a small vehicle with a luggage compartment on the side, the passenger compartment is kept wide and the rear seat is not tilted forward, leaving the occupant seated on the rear seat, that is, the largest occupant of the vehicle In addition to ensuring the number of passengers (so as not to reduce occupant transport performance), maintaining high rigidity at the rear of the vehicle body to increase the capacity of the cargo compartment, improving the convenience of the cargo compartment, etc. is there.

  The rear structure of the vehicle according to claim 1 includes a rear floor panel that forms a rear floor of the vehicle compartment, and a pair of left and right rear panels that are provided so as to bulge toward the vehicle interior side at both ends in the vehicle width direction of the rear floor panel. In a rear structure of a vehicle including a wheel house, a floor recess is formed in a portion of the rear floor panel positioned between at least one pair of rear wheel houses so as to be able to accommodate a load downward, Vehicle equipment is disposed on the lower surface side of the rear floor panel between one of the rear wheel houses.

  In the rear structure of the vehicle, a luggage compartment is formed on the rear side of the passenger compartment by a seat back of the last row seat (rear seat), the cargo compartment floor is formed by a rear floor panel, and a pair of rear wheel houses are loaded. In the case of a small vehicle that bulges inward, especially a small vehicle with a luggage compartment formed on the rear side of the passenger compartment where the front and rear seats are arranged, the rear end of the front floor panel is used to widen the passenger compartment. The rear floor panel is positioned above the front floor panel, and a rear seat is mounted on the front of the rear floor panel. The present invention is suitable for the case where the vehicle equipment is disposed on the lower surface side of this.

  A floor concave portion is formed in a portion of the rear floor panel located between at least one pair of rear wheel houses so as to be recessed downward so that luggage can be accommodated, and the rear floor panel between the floor concave portion and one of the left and right rear wheel houses. Since the vehicle equipment is arranged on the underside of the floor, the floor recess and the vehicle equipment are arranged side by side in the vehicle width direction to secure the space for arranging the vehicle equipment, and the cargo space is expanded by the floor recess. Thus, a desired relatively large load can be placed in the floor recess and stored in the luggage compartment, and the load can be stored stably using the inner wall portion of the floor recess. In particular, in the case of the small vehicle, the passenger compartment is maintained widely and the seat back of the rear seat is not tilted down, that is, the maximum number of passengers of the vehicle is secured (the passenger transport performance is not deteriorated). In the above, the cargo space capacity is expanded.

The following configuration can be adopted as a dependent claim of claim 1.
A rear seat is mounted on the rear floor panel in the passenger compartment of the passenger compartment, and the floor recess is formed such that a front portion thereof is located below a seat cushion of the rear seat. The rear seat is configured to be able to jump up a seat cushion, and is configured to be accessible from the passenger compartment to the floor recess when the seat cushion is raised up.

  A rear cross member that is long in the vehicle width direction and is laid on the pair of rear wheel houses, and is provided above the rear floor panel (Claim 4). The floor recess has a vertical recess that is juxtaposed in the vehicle width direction and extends in the front-rear direction, and a horizontal recess that extends in the vehicle width direction and extends from the rear end of the vertical recess. The concave portion is formed in an L shape in plan view. The vehicle equipment includes a fuel tank or an engine exhaust system silencer.

  According to the rear structure of the vehicle of the first aspect, a rear floor panel that forms the rear floor of the passenger compartment, and a pair of left and right provided so as to bulge toward the vehicle interior side at both ends in the vehicle width direction of the rear floor panel. A rear recess is formed in a portion of the rear floor panel located between at least one pair of rear wheel houses so as to be able to accommodate a load downward. Since the vehicle equipment is arranged on the lower surface side of the rear floor panel between the wheel house and the floor recess and the vehicle equipment are arranged side by side in the vehicle width direction to secure a space for arranging the vehicle equipment, The cargo space can be enlarged by the floor recess, and a desired relatively large load can be placed in the floor recess and accommodated in the load chamber, and the inner wall of the floor recess can be used to stabilize the load. It will be able to accommodate at state.

  In particular, in the case of a small vehicle in which a luggage compartment is formed on the rear side of the passenger compartment where the front and rear seats are arranged, a step-up kick-up portion is provided between the rear end portion of the front floor panel and the front end portion of the rear floor panel. The rear floor panel is positioned above the front floor panel, the rear seat is mounted on the front of the rear floor panel, and the vehicle equipment is arranged on the lower surface side of the rear floor panel. Although it can be widened, the above-mentioned configuration peculiar to the present plan keeps the passenger compartment wide and keeps the seat back of the rear seat forward without leaving the passenger seat, that is, the maximum of the vehicle. It is possible to increase the cargo space capacity while securing the number of passengers (so as not to reduce the passenger transportation performance).

  According to the rear structure of the vehicle of claim 2, the rear seat is mounted on the rear floor panel in the passenger compartment of the passenger compartment, and the floor recess is formed so that the front portion thereof is located below the seat cushion of the rear seat. The lower space of the seat cushion of the rear seat is effectively utilized, the floor recess is formed long in the front-rear direction, and a long load can be placed in the floor recess facing back and forth, and can be accommodated in the luggage compartment, Ensuring the maximum number of passengers in the vehicle without lowering the seat back of the rear seat, it is possible to increase the capacity of the luggage compartment so that long luggage can be accommodated, and luggage is stored in the front part of the floor recess By doing so, the luggage can be hidden from the outside by the seat cushion.

  According to the rear structure of the vehicle of claim 3, the rear seat is configured to be able to jump up the seat cushion, and is configured to be accessible from the passenger compartment to the floor recess when the seat cushion is raised up. Luggage can be taken in and out of the recess, and therefore the convenience of the luggage compartment can be improved.

  According to the rear structure of the vehicle of claim 4, a rear cross member that is long in the vehicle width direction and is laid on a pair of rear wheel houses, and includes a rear cross member disposed above the rear floor panel. Therefore, the rear cross member is provided so as not to obstruct the formation of the floor recess, so that the rigidity of the rear portion of the vehicle body can be maintained high, and the cargo space capacity can be increased, and the rear cross member is moved upward from the rear floor panel. Place the rear cross member at a relatively large distance from the bottom of the floor recess, and place a load with a long top and bottom in the floor recess so that it does not interfere with the rear cross member. It is possible to improve the rigidity of the rear wheel house that connects and supports the rear suspension at the top.

  According to the rear structure of the vehicle of claim 5, the floor recess includes a vertical recess that is arranged in parallel with the vehicle equipment in the vehicle width direction and extends in the front-rear direction, and a horizontal recess that extends to the rear end of the vertical recess and extends in the vehicle width direction. The vertical recess and the horizontal recess are formed in an L shape in plan view, so that a space for forming vehicle recesses can be secured, that is, the area for forming the floor recess, that is, the cargo space capacity can be expanded, and , Enlarge the vertical length of the part of the luggage compartment that includes the horizontal recess close to the rear gate, so that it is easy to put in and take out a large load or a large amount of luggage, and use the inner wall of the horizontal recess, etc. And can be stored in a stable state.

  According to the rear structure of the vehicle of claim 6, since the vehicle equipment includes a fuel tank or an engine exhaust system silencer, the fuel tank or the engine exhaust system silencer is arranged in parallel with the floor recess. Thus, it is possible to ensure a space for arranging the silencer for the fuel tank or the engine exhaust system.

  The rear structure of the vehicle according to the present invention includes a rear floor panel that forms a rear floor of a passenger compartment, and a pair of left and right rear wheels provided so as to bulge toward the vehicle interior side at both ends in the vehicle width direction of the rear floor panel. A floor recess is formed in a portion of the rear floor panel positioned between at least one pair of rear wheel houses so as to be able to accommodate a load downward, and the floor recess and one of the left and right rear wheel houses Vehicle equipment is disposed on the lower surface side of the rear floor panel.

  As shown in FIGS. 1 to 6, a vehicle 1 (automobile 1) is formed in a passenger compartment 3 in a passenger compartment 3 except for a rear portion thereof, and a pair of left and right front seats ( (Not shown) and a rear seat 4 are arranged, and a luggage compartment 5 is formed on the rear side of the passenger compartment 3 by a seat back 4b of the rear seat 4. The front floor of the compartment 2 is formed by the front floor panel 6, the rear floor of the compartment 2 is formed by the rear floor panel 7, and the rear end portion of the front floor panel 6 and the front end portion of the rear floor panel 7 are raised. And the rear floor panel 7 is positioned above the front floor panel 6.

  The front floor panel 6 is connected at its front end to the lower end of a dash panel (not shown) that separates the vehicle compartment 2 and the engine room (not shown), and both ends in the vehicle width direction are formed as a pair of left and right side sills 9. Are combined. The front seat is mounted on the front part of the front floor panel 6. An upward convex tunnel portion 6 a extending in the front-rear direction is formed at the center portion of the front floor panel 6 in the vehicle width direction, and the rear end portion of the tunnel portion 6 a is connected to the kick-up portion 8.

  The rear floor panel 7 has both ends in the vehicle width direction coupled to a pair of left and right rear side frames 10 to form a closed cross-section in cooperation with the rear side frame 10, and a rear end portion coupled to the rear end panel 11. . A rear gate 12 is formed on the upper end side of the rear end panel 11 to open the luggage compartment 5 rearward and outward, and the rear gate 12 is opened and closed by a back door (not shown). A kick-up cross member 13 having an L-shaped section that is long in the vehicle width direction is coupled to the front end portion and the kick-up portion 8 of the rear floor panel 7 from the lower surface side, and both ends of the kick-up cross member 13 in the vehicle width direction are a pair of side sills 9. Is bound to.

  The rear seat 4 is composed of a bench seat that is long in the vehicle width direction, and is mounted on the front portion of the rear floor panel 7 in the passenger compartment 3, and a fuel tank 14 that is a vehicle equipment is disposed on the lower surface side of the rear floor panel 7. ing. A pair of left and right rear wheel houses 15 are provided at both ends in the vehicle width direction of the rear floor panel 7 so as to bulge inwardly of the passenger compartment 2, and a pair of left and right rear wheels are provided on the pair of rear wheel houses 15. 1a is accommodated. The pair of rear wheel houses 15 are connected to a pair of left and right rear side panels 16 and a rear floor panel 7.

  Each rear wheel house 15 is composed of a wheel house inner 15a, a wheel house outer 15b, and a wheel house reinforcement 15c. The outer end of the panel 7 in the vehicle width direction is coupled, and the upper portion of the wheel house inner 15a is reinforced by a stiffener 17 coupled to the wheel house inner 15a and the rear side panel 16.

  A rear suspension (not shown) of a pair of rear wheels 1a is connected to and supported by the tops of the pair of rear wheel houses 15. The seat back 4b of the rear seat 4 is located between the front parts of the pair of rear wheel houses 15, and the luggage compartment floor of the luggage compartment 5 is formed at the rear part of the rear floor panel 7. The pair of rear wheel houses 15 are composed of the cargo compartment 5 It faces. That is, the pair of rear wheel houses 15 bulges inward of the luggage compartment 5.

  The rear structure 1R of the vehicle 1 includes the rear seat 4, the cargo compartment 5, the rear floor panel 7, the kick-up portion 8, the rear end panel 11, the fuel tank 14, a pair of rear wheel houses 15, and the like. A floor recess 20 is formed in a portion of the panel 7 positioned between at least one pair of the rear wheel houses 15 so as to be able to accommodate a load downward, and a rear floor between the floor recess 20 and the left rear wheel house 15 is formed. A fuel tank 14 is disposed on the lower surface side of the panel 7.

  The floor recess 20 includes a vertical recess 20a that is juxtaposed with the fuel tank 14 in the vehicle width direction and extends in the front-rear direction, and a horizontal recess 20b that extends in the vehicle width direction and extends to the rear end of the vertical recess 20a. 20a and the lateral recess 20b are formed in an L shape in a plan view, and the bottom thereof (the bottoms of both the recesses 20a and 20b) is formed to be substantially the same height as the front floor panel 6.

  The vertical recess 20a is formed in the front half of the rear floor panel 7 and the right half of the central portion in the front-rear direction so as to have a width in the vehicle width direction that is slightly shorter than ½ of the distance between the pair of rear wheel houses 15. The front end of the recess 20a is positioned slightly away from the kick-up portion 8 to the rear, and the front end portion of the rear recess 20a on the front side of the vertical recess 20a and the kick-up portion 8 form a cross-sectional chevron 8a that is long in the vehicle width direction. The front end portion of the seat cushion 4a of the rear seat 4 can be placed and supported on the cross-sectional chevron 8a.

  Thus, the floor recess 20 is formed such that the front portion (the front portion of the vertical recess 20a) is positioned below the seat cushion 4a of the rear seat 4. The kick-up cross member 13 is disposed so as to extend in the vehicle width direction through the inside of the cross-sectional angle portion 8a.

  The lateral recess 20b has a vehicle width direction length slightly shorter than the distance between the pair of rear wheel houses 15 at the rear end side portion of the rear floor panel 7, and about 1/2 of the longitudinal length of the longitudinal recess 20a. The right half of the horizontal recess 20b is connected to the rear end of the vertical recess 20a.

  The fuel tank 14 is formed, for example, in a rectangular shape that is long in the front-rear direction in plan view, has substantially the same width in the vehicle width direction as the vertical recess 20a, and the lower surface of the left half of the front part of the rear floor panel 7 and the central part in the front-rear direction. It is disposed on the left side, is located on the left side of the vertical recess 20a and is juxtaposed in the vehicle width direction with the vertical recess 20a, and is juxtaposed with the left half of the horizontal recess 20b in the front-rear direction, and is fixed to the rear floor panel 7 and the like. Installed on. The front end of the fuel tank 14 is located slightly away from the kick-up portion 8 so as not to interfere with the kick-up portion 8 and the kick-up cross member 13.

  The vertical recess 20a is formed in the left half of the rear floor panel 7 and the fuel tank 14 is disposed on the lower surface of the right half of the rear floor panel 7 so as to be positioned on the right side of the vertical recess 20a. You may arrange in parallel in the width direction. The longitudinal length and the width in the vehicle width direction of the vertical recess 20a are appropriately changed so that the fuel tank 14 and the vertical recess 20a can be juxtaposed in the vehicle width direction according to the shape and capacity of the fuel tank 14. Also good.

  Here, the exhaust pipe 18 of the engine exhaust system extends rearward from the engine (not shown) in the engine room through the inside (lower surface side) of the tunnel portion 6a of the front floor panel 6 and from the kick-up portion 8 to the rear floor. Specifically, the rear surface of the rear floor panel 7 is introduced to the lower surface side of the panel 7, specifically, the rear side of the kick up portion 8 so as not to interfere with the kick up portion 8, the fuel tank 14, the floor recess 20, and the like. Bends from the vicinity to the right and extends along the lower end front edge of the vertical recess 20a, then bends back and extends along the lower right end edges of the vertical recess 20a and the horizontal recess 20b, and the rear end side of the vehicle 1 Has been derived.

  The rear seat 4 is configured to be able to jump up the seat cushion 4a, and is configured to be accessible from the passenger compartment 3 to the floor recess 20 (vertical recess 20a) with the seat cushion 4a being lifted up. In the rear seat 4, the seat back 4 b is connected and supported to the rear wheel house 15, the rear side panel 16, the stiffener 17, and the like, and the base end portion (rear end portion) of the seat cushion 4 a is arranged in the vehicle width direction on the lower end side of the seat back 4 b. It is pivotally supported via a pivot shaft 4c.

  The seat cushion 4a is placed and supported on the rear floor panel 7 in a horizontal posture so that an occupant can be seated, rotated around the pivot shaft 4c so as to be folded over the seat back 4b, and jumped up to a vertical posture. The front part of the vertical recess 20a opens to the passenger compartment 3. In addition, you may comprise so that the seat cushion 4a can be hold | maintained in the raised state.

  The rear structure 1 </ b> R of the vehicle 1 is a rear cross member 25 that is installed in a pair of rear wheel houses 15 and that is long in the vehicle width direction, and is disposed above the rear floor panel 7. And a rear luggage compartment board 30 (see FIG. 6) that is supported horizontally on the upper side of the rear floor panel 7 so that the front end portion is supported by the rear cross member 25 so that the upper portion of the floor recess 20 can be covered and a load can be placed. ).

  The rear cross member 25 is configured to have a flat cross-sectional structure by joining two members, which are a U-shaped member 25a and a strip-shaped member 25b. In the luggage compartment 5, the rear cross member 25 is provided on the rear surface of the seat back 4b. Located near the floor surface of the rear floor panel 7 (upper surface of the portion other than the floor recess 20) and provided so as to cross over the vertical recess 20a and provided at both ends of the vehicle width of the rear cross member 25. The flanges are joined in contact with the lower inner surface of the wheel house inner 15a of the pair of rear wheel houses 15.

  The rear cross member 25 is positioned in the vicinity of the axle position of the rear wheel 1 a in the front-rear direction, and the left half of the rear cross member 25 is in contact with or close to the upper surface of the left side of the vertical recess 20 a in the rear floor panel 7. Instead of the rear cross member 25, for example, a rectangular tube-shaped or cylindrical rear cross member configured in a flat cross-sectional structure with one member by hydroforming, or a rear cross member having an open cross-sectional structure having a U-shaped cross section. May be adopted. The rear cross member 25 may be coupled to the upper surface of the left half portion of the rear floor panel 7.

  The cargo compartment board 30 is detachably attached to the cargo compartment 5 and is formed in a shape and size substantially the same as a portion of the rear floor panel 7 facing the cargo compartment 5 in a plan view, and forms a large part thereof. It has a board part 30a and a locking cover part 30b provided on the front end side of the horizontal board part 30a. The luggage compartment board 30 can be omitted.

  In a state where the cargo compartment board 30 is attached to the cargo compartment 5, the locking cover portion 30 b is locked and supported by the rear cross member 25 to cover the rear cross member 25, and the horizontal board portion 30 a covers the floor recess 20. The rear floor panel 7 is mounted and supported in a surface contact manner on the upper surface of the rear floor panel 7 (the upper surface of the left side portion of the vertical recess 20a and the left and right sides of the horizontal recess 20b). The luggage compartment board 30 is configured to be relatively hard so that it is difficult to bend even when a load is placed on the upper portion of the floor recess 20.

  According to the rear structure 1R of the vehicle 1 described above, a floor recess 20 that is recessed so as to accommodate a load downward is formed in a portion located between at least one pair of rear wheel houses 15 in the rear floor panel 7, Since the fuel tank 14 is disposed on the lower surface side of the rear floor panel 7 between the floor recess 20 and either the left or right (left side) rear wheel house 15, the floor recess 20 and the fuel tank 14 are arranged in the vehicle width direction. The storage space for the fuel tank 14 can be secured in parallel, and the cargo space 5 can be enlarged by the floor recess 20, and a desired relatively large load can be placed in the floor recess 20 and accommodated in the cargo space 5. In addition, the luggage can be stored in a stable state using the inner wall portion of the floor recess 20.

  In particular, the vehicle 1 is a small vehicle in which a luggage compartment 5 is formed on the rear side of the passenger compartment 3 in which the front seat and the rear seat 4 are arranged, and the rear end portion of the front floor panel 6 and the front end portion of the rear floor panel 7 are connected. The rear floor panel 7 is positioned above the front floor panel 6 by being connected via a stepped-up kick-up portion 8, the rear seat 4 is mounted on the front portion of the rear floor panel 7, and the lower surface side of the rear floor panel 7 It is advantageous to widen the passenger compartment 3 by disposing the fuel tank 14 on the front side. However, the above-mentioned configuration unique to the present plan keeps the passenger compartment 3 wide and makes the seat back 4b of the rear seat 4 prone. Without securing the maximum number of passengers (4 to 5 persons) of the vehicle 1 (so as not to reduce the passenger transportation performance) It is possible to expand the capacity of the chamber 5.

  Since the rear seat 4 is provided on the rear floor panel 7 in the passenger compartment 3 of the passenger compartment 2, and the floor recess 20 is formed so that the front portion thereof is located below the seat cushion 4a of the rear seat 4, the seat of the rear seat 4 is provided. By effectively using the lower space of the cushion 4a, the floor recess 20 is formed long in the front-rear direction, and a long load can be placed in the floor recess 20 facing front and back and accommodated in the luggage compartment 5, The capacity of the luggage compartment 5 can be increased so that the maximum number of passengers of the vehicle 1 can be secured without accommodating the seat back 4b of the rear seat 4 and the long luggage can be accommodated. By storing the luggage in the front part, the luggage can be hidden from the outside by the seat cushion 4a.

  The rear seat 4 is configured such that the seat cushion 4a can be lifted up, and the floor recess 20 can be accessed from the passenger compartment 3 with the seat cushion 4a raised, so that the luggage can be taken in and out of the passenger compartment 3 into the floor concave portion 20. Therefore, the convenience of the luggage compartment 5 can be improved.

  The rear cross member 25 is a rear cross member 25 that is installed in the pair of rear wheel houses 15 and that is long in the vehicle width direction. The rear cross member 25 is disposed above the rear floor panel 7. It is possible to increase the capacity of the luggage compartment 5 by maintaining the rigidity of the rear part of the vehicle body high so as not to interfere with the formation of the floor recess 20.

  The floor recess 20 includes a vertical recess 20a that is juxtaposed with the fuel tank 14 in the vehicle width direction and extends in the front-rear direction, and a horizontal recess 20b that extends in the vehicle width direction and extends to the rear end of the vertical recess 20a. Since the space 20a and the lateral recess 20b are formed in an L shape in plan view, the space for arranging the fuel tank 14 can be secured, and the area where the floor recess 20 is formed, that is, the capacity of the luggage compartment 5 can be expanded. 5, the vertical length of the portion including the horizontal recess 20b close to the rear gate 12 is enlarged so that a bag with a long vertical length and a large amount of baggage can be easily taken in and out, and the inner wall of the horizontal recess 20b is used. And can be housed in a stable state.

  Since the front end portion is supported by the rear cross member 25 and the rear luggage compartment board 30 that is horizontally held on the upper side of the rear floor panel 7 so as to be able to cover the upper portion of the floor recess 20 and to be able to place a load is provided. The luggage loaded on the floor recess 20 by the rear luggage compartment board 30 and concealed in the luggage compartment 5 can be concealed, and the luggage can be neatly placed on the rear luggage compartment board 30 and accommodated in the luggage compartment 5. When the rear luggage compartment board 30 is removed, a vertically long luggage can be placed in the floor recess 20 and accommodated in the luggage compartment 5, that is, the convenience of the luggage compartment 5 can be improved.

  Next, another embodiment in which the first embodiment is partially changed will be described. However, configurations that are the same as or similar to those in the first embodiment will be described with the same or similar reference numerals, and detailed descriptions thereof will be omitted as appropriate. Descriptions of basically the same effects as in the first embodiment will be omitted. To do.

  As shown in FIG. 7, in the rear structure 1RA of the vehicle, the rear cross member 25A is positioned in front of the rear cross member 25 of the first embodiment and is located above the rear floor panel 7 and the rear seat 4 The rear end of the rear seat 4 is placed and supported on the rear cross member 25A. Further, the kick-up cross member 13A is coupled to the front end portion of the rear floor panel 7 and the kick-up portion 8 from the upper surface side, and the front end portion of the rear seat 4 is placed and supported on the kick-up cross member 13A. Thus, the mounting rigidity of the rear seat 4 can be increased.

  As shown in FIG. 8, in the rear structure 1RB of the vehicle, the rear cross member 25B is disposed above the rear cross panel 25 so as to be positioned above the rear cross member 25 of the first embodiment. Has been. The rear cross member 25B is relatively far away from the bottom of the floor recess 20 (vertical recess 20a), for example, is disposed at a height that is twice or more the depth of the floor recess 20, and its both ends in the vehicle width direction are 1 Coupled to the upper part of the pair of rear wheel houses 15. In this way, it is possible to place a load having a long top and bottom in the floor recess 20 so as not to interfere with the rear cross member 25B and accommodate it in the luggage compartment 5, and the rear wheel house 15 that connects and supports the rear suspension at the top. It can be expected that the rigidity is improved.

  As shown in FIG. 9, in the vehicle rear structure 1RC, the rear cross member 25C is positioned above the rear cross member 25 of the first embodiment and below the rear cross member 25B of the third embodiment. The rear floor panel 7 is spaced upward, but is disposed at a position slightly lower than the lower edge of the opening of the rear gate 12. The cargo compartment board 30C is formed horizontally as a whole, the front end portion of the cargo compartment board 30C is placed and supported on the rear cross member 25C, and the rear end portion of the cargo compartment board 30C is mounted on the upper front portion of the rear end panel 11. A plurality of locking portions 31 for locking and supporting are provided. In this way, the luggage placed on the luggage compartment board 30 </ b> C and accommodated in the luggage compartment 5 can be easily taken in and out of the rear gate 12. Further, when the seat back 4b that is tiltably supported via the seat back support bracket is tilted forward, the back surface (upper surface) of the seat back 4b and the luggage compartment board 30C form a substantially continuous load placement surface. As a result, the cargo space can be expanded, and the luggage can be slid into the deeper cargo space.

  As shown in FIG. 10, in the rear structure 1RD of the vehicle, the rear cross member 25D is disposed at substantially the same position as the rear cross member 25C of the fourth embodiment, and the rear seat 4D jumps up the seat cushion 4Da. The seat cushion 4Da is positioned above the floor surface (the upper surface other than the floor recess 20) of the rear floor panel 7 and above the lower end of the rear cross member 25D. The lower end portion of the back 4Db is configured to penetrate forward and backward.

  In the rear seat 4D, the base end portions of the plurality of seat coupling members 4Dd are pivotally supported by a portion slightly above the lower end portion of the seat back 4Db via a pivot shaft 4Dc in the vehicle width direction, and the plurality of seat coupling members 4Dd The front end is connected to the rear end of the seat cushion 4Da. Thus, with the seat cushion 4Da raised up, the front part of the vertical recess 20a can be greatly opened into the passenger compartment 3, and a long object longer than the longitudinal length of the cargo compartment 5 can be connected to the rear cross member 25D and the seat cushion 4Da. Further, it can be accommodated so as to pass through the lower side, and further, a long object longer than the front and rear length of the rear floor panel 7 is passed from the kick-up part 8 through the lower side of the rear cross member 25C and the seat cushion 4Da on the floor surface of the rear floor panel 7. Can also be accommodated so as to project forward. In addition, it is preferable that the seat cushion 4Da is configured to be able to be held in a raised state.

  As shown in FIG. 11, in the rear structure 1RE of the vehicle, the rear cross member 25E is also used as a pivot shaft member 4Ec that pivotally supports the seat back 4Eb so that the seat cushion 4Ea of the rear seat 4E can be lifted. The pivot shaft member 4Ec is constructed by connecting both ends in the vehicle width direction to a pair of rear wheel houses 15 so that the floor recess 20 can be accessed from the passenger compartment 3 with the seat cushion 4Ea jumped up. Has been. Thus, it is possible to prevent the rear cross member 25E from narrowing the luggage compartment 5.

  Similarly to the rear seat 4D of the fifth embodiment, the rear seat 4E has a lower end portion of the seat cushion 4Ea than a floor surface (an upper surface other than the floor recess 20) of the rear floor panel 7 with the seat cushion 4Ea jumped up. Similar to the fifth embodiment, the seat back 4Eb is formed so as to be positioned above and at the same height as the lower end of the rear cross member 25E, and the lower end of the seat back 4Eb penetrates back and forth. The effect of.

  As shown in FIGS. 12 and 13, in the rear structure 1RF of the vehicle, the rear cross member 25F is formed into a cylindrical flat cross-sectional structure with one member by, for example, hydroforming, and the rear cross of the fourth embodiment. It is disposed at substantially the same position as the member 25C. The cargo compartment board 30F has a horizontal board portion 30Fa and a plurality of hook portions 30Fb provided on the front end side of the horizontal board portion 30Fa, and these hook portions 30Fb are latched and supported by the rear cross member 25F, and the rear end panel. 11 is provided with a plurality of locking portions 31 for locking and supporting the rear end portion of the luggage compartment board 30F. Thus, the same effects as those of the fourth embodiment are obtained. In particular, when the seat back 4b that is tiltably supported via the seat back support bracket is tilted forward, the back surface (upper surface) of the seat back 4b and the luggage compartment board 30F form a substantially continuous load placement surface. As a result, the cargo space can be expanded, and the luggage can be slid into the deeper cargo space.

  As shown in FIG. 14, in the rear structure 1RG of the vehicle, the rear cross member 25G has a cylindrical flat cross-sectional structure and is disposed at substantially the same position as the rear cross member 25C of the fourth embodiment. 4 is supported by the rear cross member 25G. Each seat belt anchor 35 has a rear end portion fixed to the rear cross member 25G, extends forward from there through the rear seat 4, rises forward and obliquely upward at the front portion, and a seat belt ( A buckle 36 (not shown) is fixed. Thus, the support rigidity of the seat belt anchor 35 can be increased.

  As shown in FIGS. 15 to 18, in the rear structure 1RH of the vehicle, the rear cross member 25H is configured in a cylindrical flat cross-sectional structure, and both ends of the rear cross member 25H in the vehicle width direction are paired with the rear. A cross member variable support mechanism 40 is provided that supports the wheel house 15 so that its position is variable along the rear surface of the seat back 4b of the rear seat 4 in the vertical direction.

  The cross member variable support mechanism 40 includes a pair of left and right symmetrical variable support structures 41. Each variable support structure 41 includes a guide member 42 that is long in the vertical direction, and a slide member that is movably guided and supported by the guide member 42. 43, and this slide member 43 is fixedly provided at the end of the rear cross member 25H in the vehicle width direction.

  A T-groove 42a is formed in the guide member 42, and the guide member 42 is inclined slightly rearward along the rear surface of the seat back 4b of the rear seat 4 with the slit 42b of the T-groove 42a directed inward of the luggage compartment 5. As shown, the wheel house inner 15a of the rear wheel house 15 and the inner surface of the stiffener 17H are fixed. In order to fix the upper end portion of the guide member 42, the stiffener 17H is formed in a vertical cross section in which a lower portion of the inner surface is connected to the inner surface of the wheel house inner 15a substantially continuously.

  The slide member 43 is fixed to an end portion in the vehicle width direction of the rear cross member 25H, and has a hook-like portion 43a that slidably contacts the inner surface of the guide member 42, and a slit 42b of the T groove 42a integrally with the hook-like portion 43a. A slit engaging portion 43b that slidably engages with the slit engaging portion 43b and a groove engaging portion that is slidably engaged with the groove portion 42c on the bottom side of the T groove 42a. Part 43c.

  The pulling mechanism 44 is operated by operating an operation lever 45 pivotally supported on the inner surface side of the flange portion 43a, and by operating the operation lever 45 to a fixed operation position indicated by a chain line in FIG. The part 43c is attracted toward the flange part 43a and is brought into close contact with the inner surface of the groove part 42c, the slide member 43 is fixed to the guide member 42, and the operation lever 45 is released from the fixed operation position as indicated by a solid line in FIG. By operating to the operation position, the close contact of the groove engaging portion 43c with the inner surface of the groove 20c is released, and the slide member 43 is released from the guide member 42 to be movable.

  According to the rear structure 1RH of this vehicle, the rear cross member 25H can be switched to a desired vertical position according to the load placed in the luggage compartment 5, and can be fixed, for example, when the luggage compartment board is used. The cross member 25H is switched to the lower limit position, and the luggage compartment board is placed and supported by using the rear cross member 25H, and the rear cross member 25H is switched to the upper position so that a long upper and lower baggage can be rear crossed. It can be placed in the floor recess 20 so as not to interfere with the member 25H and accommodated in the luggage compartment 5, and it can be expected that the rigidity of the rear wheel house 15 for connecting and supporting the rear suspension at the top is improved.

  As shown in FIG. 19, in the rear structure 1RI of the vehicle, a pair of left and right rear seats 4I are provided, and each rear seat 4I includes a seat cushion 4Ia and a seat back 4Ib, and a lower end portion of the seat back 4Ib. The base end portion (rear end portion) of the seat cushion 4Ia is pivotally supported on the side via a pivot shaft 4Ic in the vehicle width direction so that the seat cushion 4Ia can be flipped up. Only one (right side) seat cushion 4Ia corresponding to the vertical recess 20a is jumped up so that the floor recess 20 (vertical recess 20a) can be accessed from the passenger compartment 3.

  As shown in FIG. 20, in the rear structure 1RJ of this vehicle, the floor recess 20J is arranged in parallel with the fuel tank 14 in the vehicle width direction and extends in the front-rear direction, and the vertical recess 20a extends rearward. Formed on the panel 7J, the lateral recess 20b is omitted. Accordingly, a space is formed on the lower surface side of the rear floor panel 7 behind the fuel tank 14, and an engine exhaust system silencer 19, which is a vehicle equipment, is disposed laterally there.

  That is, the silencer 19 is disposed on the lower surface side of the rear floor panel 7 between the floor recess 20J and either the left or right (left side) rear wheel house 15, and the silencer 19 is connected to the exhaust pipe 18J near its downstream end. It is connected.

  As shown in FIG. 21, in the rear structure 1RK of the vehicle, the floor recess 20K has a longitudinal recess 20Ka extending in the front-rear direction, and a lateral recess 20Kb extending in the vehicle width direction and connected to the front end of the longitudinal recess 20Ka. It is formed on the rear floor panel 7K, and is formed in an L shape in plan view with the vertical recess 20Ka and the lateral recess 20Kb.

  The vertical recess 20Ka is formed in the front half of the rear floor panel 7K and the right half of the center portion in the front-rear direction, and the rear end of the vertical recess 20Ka faces the rear end panel 11. The lateral recess 20Kb is formed at a front end portion of the rear floor panel 7K, the right half of the lateral recess 20Kb is continuous with the front end of the vertical recess 20Ka, and the floor recess 20K has a front portion (lateral recess 20Kb) at the seat cushion of the rear seat 4. It is formed so as to be positioned below 4a.

  The silencer 19K is arranged in the longitudinal direction on the lower surface side of the rear floor panel 7K so that the silencer 19K is arranged in parallel with the longitudinal recess 20Ka in the vehicle width direction and in the front-rear direction with the lateral recess 20Kb. The exhaust pipe 18K is connected in the vicinity of the downstream end thereof. The fuel tank is disposed at a place other than the lower surface side of the rear end panel 7K (for example, the lower surface side of the portion bulged upward of the front floor panel 6 so as to place the front seat).

  The rear structure of the vehicle may be configured by combining any of the configurations of Embodiments 1 to 12 if possible. In addition, in the range which does not deviate from the meaning of the present invention, various configurations other than the disclosed items can be added and implemented, and the present invention is not limited to the vehicle (small vehicle) disclosed in the embodiments. It is applicable to other vehicles.

1 is a perspective view of the inside of a rear structure of a vehicle according to a first embodiment. 1 is a plan sectional view of a rear structure of a vehicle according to a first embodiment. It is the III-III sectional view taken on the line of FIG. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. FIG. 5 is a view corresponding to FIG. 4 in a state where a cargo compartment board is attached. FIG. 6 is a diagram corresponding to FIG. 4 of the second embodiment. FIG. 4 is a diagram corresponding to FIG. FIG. 6 is a diagram corresponding to FIG. FIG. 6 is a diagram corresponding to FIG. FIG. 6 is a diagram corresponding to FIG. FIG. 10 is a view corresponding to FIG. FIG. 9 is a diagram corresponding to FIG. FIG. 9 is a diagram corresponding to FIG. FIG. 10 is a diagram corresponding to FIG. FIG. 10 is a diagram corresponding to FIG. It is a perspective view of the principal part of the rear part structure of the vehicle of Example 9. It is the XVIII-XVIII sectional view taken on the line of FIG. FIG. 10 is a diagram corresponding to FIG. FIG. 12 is a diagram corresponding to FIG. FIG. 22 is a diagram corresponding to FIG.

Explanation of symbols

1 Vehicle 1R, 1RA, 1RB, 1RC, 1RD, 1RE, 1RF, 1RG, 1RH, 1RI, 1RJ, 1RK Rear structure 2 Car compartment 3 Passenger compartment 4, 4D, 4E, 4I Rear seat 4a, 4Da, 4Ia Seat cushion 4b, 4Db, 4Ib Seat back 4Ec Pivot shaft member 5 Cargo compartment 7, 7J, 7K Rear floor panel 14 Fuel tank 15 Rear wheel house 19, 19K Silencer 20, 20J, 20K Floor recess 20a, 20Ka Vertical recess 20b, 20Kb Horizontal recess 25, 25A, 25B, 25C, 25D, 25E, 25F, 25G, 25H Rear cross member 30, 30C, 30F Cargo compartment board 35 Seat belt anchor 40 Cross member variable support mechanism

Claims (6)

Rear structure of vehicle including a rear floor panel that forms a rear floor of a passenger compartment, and a pair of left and right rear wheel houses provided at both ends in the vehicle width direction of the rear floor panel so as to bulge toward the passenger compartment. In
A floor recess is formed in a portion located between at least one pair of rear wheel houses of the rear floor panel so as to be recessed so as to accommodate luggage downwards,
A vehicle rear structure, characterized in that a vehicle accessory is disposed on a lower surface side of a rear floor panel between the floor recess and either one of the left and right rear wheel houses. A rear seat is mounted on the rear floor panel in the passenger compartment of the passenger compartment,
The rear structure of the vehicle according to claim 1, wherein the floor recess is formed such that a front portion thereof is positioned below a seat cushion of a rear seat. The rear seat is configured to be able to jump up a seat cushion,
The rear structure of the vehicle according to claim 2, wherein the floor recess is accessible from a passenger compartment in a state in which the seat cushion is raised.   4. A rear cross member that is long in the vehicle width direction and is laid on the pair of rear wheel houses, the rear cross member being disposed above the rear floor panel. The rear structure of the vehicle according to any one of the above.   The floor recess has a vertical recess that is juxtaposed in the vehicle width direction and extends in the front-rear direction, and a horizontal recess that extends in the vehicle width direction and extends from the rear end of the vertical recess. The rear structure of the vehicle according to any one of claims 1 to 4, wherein the rear structure is formed in an L shape in plan view.   The vehicle rear part structure according to any one of claims 1 to 5, wherein the vehicle equipment comprises a fuel tank or an engine exhaust system silencer.