Vehicle interior structure

Abstract

To provide a vehicle passenger compartment internal structure which enables improvement of comfort in a passenger compartment space which is extended according to a state of a vehicle seat.SOLUTION: A passenger compartment internal structure of a vehicle 1 includes: a front seat 2 which enables a position of a seat back 22 to be adjusted to a horizontal position where a rear part of a seating surface of the seat back 22 is flatten out when the seat back 22 is reclined; a luggage board 4 disposed rearward of the front seat 2 in the passenger compartment; and a support part 5 which supports the luggage board 4 so that a board surface of the luggage board 4 is flatten out. The passenger compartment internal structure is configured to extend a passenger compartment space according to a state of the seat. The support part 5 supports the luggage board 4 at a facing position where a rear surface 22C of the seat back 22 in the horizontal position and a front surface 4A of the luggage board 4 face each other.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the interior structure of a vehicle cabin.

Background Art

[0002] Conventionally, as a vehicle seat installed on the rear seat side of a vehicle such as an automobile, a tilt-down type (dive-down type) vehicle seat that can expand the luggage compartment space by folding the seat back forward and storing it in the front foot space together with the seat part (seat cushion) is known. For example, in Patent Document 1, a dive-down type vehicle seat is applied not only to the rear seat but also to the front seat, and when each is in a stored state, the back surface of the seat back and the luggage compartment floor surface are made substantially flush, thereby expanding the cabin space and enabling in-vehicle camping and the like in the vehicle cabin.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, with the conventional vehicle interior structure described above, when the interior space is expanded, a portion of the underside of the interior space (floor surface) becomes part of the seat back, which could compromise the comfort of the interior. For example, the back of the seat back has thinner cushioning material than the front side where the occupant leans, and a metal seat back frame is often located on the inside of the back. Therefore, if the back of the seat back becomes part of the underside of the interior space when expanded, occupants are likely to feel discomfort (hardness) in that part of the seat back. Also, for example, if a rotatable auxiliary table is provided on the back of the seat back, it becomes unusable when the interior space is expanded, making it difficult for occupants to eat or do office work using a PC, etc.

[0005] This invention has been made in view of the above-mentioned points, and aims to provide a vehicle interior structure that can improve comfort in the expanded vehicle interior space according to the condition of the vehicle seats. [Means for solving the problem]

[0006] To achieve the above objective, one aspect of the present invention involves tilting the seat back backward. did A vehicle seat that allows the seat back to be positioned horizontally at times when the rear of the seat surface of the seat back is horizontal, a luggage board positioned behind the vehicle seat in the vehicle interior, and a support for the luggage board so that the board surface of the luggage board is horizontal. Furthermore, the luggage board is supported in a position where the rear surface of the seat back in the horizontal position and the front surface of the luggage board face each other. The present invention provides a vehicle interior structure comprising a support portion and capable of expanding the interior space according to the state of the vehicle seat. In the vehicle interior structure, The seat back comprises a seat back cushion that forms the seat surface and a seat back frame that supports the seat back cushion, and the board surface of the luggage board is positioned above the upper surface of the seat back frame in the horizontal position of the seat back, while being supported in the facing position by the support portion. [Effects of the Invention]

[0007] According to one aspect of the present invention, a portion of the lower surface of the expanded passenger compartment space, depending on the state of the vehicle seat, is composed of the highly cushioned seat back surface of the vehicle seat, and the step between the rear of the seat back surface and the luggage board is reduced, thereby improving comfort in the expanded passenger compartment space. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing the interior structure of a vehicle according to one embodiment of the present invention, with the interior space expanded in bed mode. [Figure 2] This is a side view illustrating the schematic layout of the interior of the vehicle in the expanded state shown in Figure 1. [Figure 3] This is an enlarged perspective view showing the lower part of the side trim where the support portion is formed in the above embodiment. [Figure 4] Figure 3 is a side view of the lower part of the side trim, seen from inside the vehicle. [Figure 5] This is an enlarged perspective view showing the luggage board in the above embodiment positioned so that the first board surface, used in bed mode, is facing upwards. [Figure 6] This is an enlarged perspective view showing the luggage board in the above embodiment positioned so that the second board surface used in work mode is facing upwards. [Figure 7] This is a conceptual diagram illustrating the relationship between the width of the luggage board and the vertical spacing of the first to third support parts in the above embodiment. [Figure 8] This is a perspective view showing an example of the vehicle interior space expanded in work mode according to the above embodiment. [Figure 9] Figure 8 is a side view illustrating the schematic layout of the interior of the vehicle in its expanded state. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Figure 1 is a perspective view showing the interior structure of a vehicle according to one embodiment of the present invention, with the interior space expanded in bed mode. Figure 2 is a side view illustrating the schematic arrangement of the interior in the expanded state shown in Figure 1. In the figures described below, the arrow Fr indicates the front of the vehicle seat in the longitudinal direction. In the description of the embodiment, "front (front end) and rear (rear end)" correspond to the front and rear of the seat in the longitudinal direction. Also, the front of the seat in the longitudinal direction in this embodiment corresponds to the front of the vehicle in the longitudinal direction. The arrows R and L indicate the right and left sides when an occupant is seated in the vehicle seat. The arrow U indicates upward.

[0010] As shown in Figures 1 and 2, the interior structure of the vehicle according to this embodiment includes a front seat 2 and a rear seat 3, a luggage board 4 positioned behind the rear seat 3, and a support part 5 that supports the luggage board 4, all located inside the vehicle 1, such as an automobile.

[0011] The front seats 2 are installed in the front of the front floor 11 of the vehicle interior, serving as the right front seat (driver's seat) and the left front seat (passenger seat). Each front seat 2 has a seat portion 21 and a seat back 22.

[0012] The seat portion 21 of the front seat 2 is the part where the occupant sits. An elastic seat cushion 21B is installed on the upper part of the seat frame 21A, which forms the framework of the seat portion 21. A seating surface is formed on the upper surface of the seat cushion 21B, and a seat cover (not shown) is placed over it. A reclining mechanism 23 is provided at the rear of the seat frame 21A.

[0013] The seatback 22 of the front seat 2 is the part that extends upward from the rear of the seat portion 21 and is configured to support the upper body of the occupant seated on the seat portion 21. The seatback 22 is used in an upright position when driving the vehicle. Figures 1 and 2 show the seatback 22 in a reclined position towards the rear of the vehicle by the reclining mechanism 23.

[0014] The seat back frame 22A (dotted line) that constitutes the framework of the seat back 22 is formed in a substantially rectangular shape by bending a pipe-shaped member. In the upright state of the seat back 22, a seat back cushion 22B made of a cushioning material having elastic characteristics is installed at the front portion of the seat back frame 22A.

[0015] On the front surface of the seat back cushion 22B in the upright state, a seating surface (support surface) for supporting the back of the occupant is formed. Also, on the upper surface of the seat back cushion 22B in the upright state, a headrest 24 (shown in FIG. 9 described later) is detachably attached. The headrest 24 supports the head of the occupant seated on the seat portion 21 of the front seat 2. In FIGS. 1 and 2, the headrest 24 is removed from the seat back cushion 22B. A seat back cover (not shown) is covered on the seat back cushion 22B.

[0016] The front seat 2 as described above can be configured to adjust the position of the seat back 22 to a horizontal position where the rear portion of the seating surface of the seat back 22 becomes horizontal when the seat back 22 is reclined backward by the reclining mechanism 23. Note that the horizontal position only needs to be such that the rear portion of the seating surface of the seat back 22 is generally horizontal, and it does not need to be strictly horizontal. Specifically, for example, it may be within a range of ±10°, preferably within a range of ±5° with respect to the horizontal direction at the rear portion of the seating surface of the seat back 22. Also, although not shown, the front seat 2 can also recline the seat back 22 forward by the reclining mechanism 23. did When reclining the seat back 22 of the front seat 2 to the above-described horizontal position in the present embodiment, as shown in FIGS. 1 and 2, it is necessary to store the rear seat 3 located behind the front seat 2 in the foot space. The rear seat 3 uses a tilt-down type (dive-down type) vehicle seat similar to the one installed in the vehicle interior of the conventional vehicle described above.

[0017] In the present embodiment, when reclining the seat back 22 of the front seat 2 to the above-described horizontal position, as shown in FIGS. 1 and 2, it is necessary to store the rear seat 3 located behind the front seat 2 in the foot space. The rear seat 3 uses a tilt-down type (dive-down type) vehicle seat similar to the one installed in the vehicle interior of the conventional vehicle described above.

[0018] The rear seat 3 is respectively installed across the rear part of the front floor 11 of the passenger compartment and the front part of the rear floor 12 as the right rear seat and the left rear seat in the passenger compartment. The rear seat 3 has a rear seat portion 31 and the rear seat back 32. The rear seat 3 is configured to be able to expand the passenger compartment space by folding the rear seat back 32 forward and storing it together with the rear seat portion 31 in the front foot space.

[0019] Specifically, the rear seat portion 31 is configured to be position - adjustable to a storage position located on the front floor 11 side of the passenger compartment and a deployment position located on the rear floor 12 side above the storage position. The storage position of the rear seat portion 31 is a position using the front foot space in front of the rear seat 3 and corresponds to a recess provided in the rear part of the front floor 11. The rear seat back 32 is configured to be position - adjustable to an overlapping position overlapping the rear seat portion 31. The rear seat 3 shown in FIGS. 1 and 2 is adjusted to a tilt - down state (storage state) with the rear seat back 32 in the overlapping position and the rear seat portion 31 in the storage position.

[0020] In this embodiment, by adjusting the rear seat 3 to the tilt - down state and tilting the seat back 22 of the front seat 2 backward to the horizontal position, the passenger compartment space is expanded to the bed mode. When expanding the passenger compartment space in the bed mode, the luggage board 4 is supported by the support portion 5 at a facing position where the rear surface 22C of the seat back 22 in the horizontal position and the front surface 4A of the luggage board 4 face each other. Note that the rear surface 22C of the seat back 22 in the horizontal position is the upper surface of the upright seat back 22. In other words, the attachment surface to which the headrest 24 of the seat back cushion 22B is attached corresponds to the rear surface 22C of the seat back 22 in the horizontal position.

[0021] The vertical range α shown in Figure 2 represents the range in which the front surface 4A of the luggage board 4 is preferably positioned in the above-mentioned face-to-face position. In this embodiment, the upper surface (board surface) of the luggage board 4 supported by the support portion 5 is positioned below the upper end of the rear surface 22C of the seat back 22 in the horizontal position, and above the upper surface of the seat back frame 22A (dotted line in Figure 2). Specifically, the upper surface of the seat back frame 22A in this embodiment corresponds to the upper surface of the upper frame portion that is located on the mounting side of the headrest 24 and extends in the seat width direction in the substantially rectangular seat back frame 22A. Furthermore, the position above the upper surface of the seat back frame 22A includes the case in which the upper surface of the seat back frame 22A and a part of the front surface 4A of the luggage board 4 overlap in the front-to-back direction. Below, an example of the specific structure of the support portion 5 that supports the luggage board 4 in the above-mentioned face-to-face position will be described in detail with reference to Figures 3 and 4.

[0022] Figure 3 is an enlarged perspective view showing the lower part of the side trim 13 on which the support portion 5 is formed in this embodiment. Figure 4 is a side view of the lower part of the side trim 13 in Figure 3, as seen from inside the vehicle.

[0023] As shown in Figures 1, 3, and 4, the support portion 5 is formed at the lower part of the left and right side trims 13 that constitute the side wall of the rear of the passenger compartment. The side trim 13 is positioned between the rear edge 14A of the rear door opening 14 provided on the side of the vehicle body and the side edge 15A of the back door opening 15 provided on the rear of the vehicle body, and extends in the vertical direction of the vehicle. The wall surface (reference plane) of the side trim 13 is positioned inward in the vehicle width direction at the rear side portion in the vehicle longitudinal direction compared to the front side portion. In this embodiment, the wall surface of the side trim 13 gradually slopes inward in the vehicle width direction as it moves towards the rear of the vehicle. That is, the distance (width) between the wall surface of the right side trim 13 and the wall surface of the left side trim 13 gradually narrows as it moves towards the rear of the vehicle. Note that only the right side trim 13 is shown in Figure 1, and the left side trim 13 is not shown. Figures 3 and 4 show a magnified view of the lower part of the right side trim 13. Because the wall surface of the side trim 13 is formed in the inclined shape described above, when installing the luggage board 4 on the support part 5, the luggage board 4 can be positioned while contacting the wall surface of the side trim 13, and the load transmitted to the luggage board 4 can be distributed to the side trim 13.

[0024] In this embodiment, the support section 5 has, for example, a three-tiered configuration, and includes a first support section 51, a second support section 52, and a third support section 53. In this three-tiered support section 5, the first support section 51 supports the luggage board 4 in the facing position (α) in the bed mode (Figure 1).

[0025] As shown in Figures 3 and 4, the first support portion 51 is formed on the upper surface of a bulge that protrudes inward into the passenger compartment at the lower end of the lower part of the side trim 13. A wheel well (not shown) corresponding to the rear wheels of the vehicle is located on the outer side of this bulge. The first support portion 51 extends in the longitudinal direction of the vehicle and is divided into a front support portion 51A and a rear support portion 51B, separated by a recessed portion that is recessed outward from the passenger compartment and is formed towards the front of the middle portion. The upper surfaces of the front support portion 51A and the rear support portion 51B are substantially horizontal flat surfaces. The upper surface of the rear support portion 51B narrows in the width direction of the vehicle as it approaches the rear of the vehicle, making the rear support portion 51B less prone to bending in the vertical direction. The recessed portion is used when the luggage board 4 is placed vertically.

[0026] The first support portion 51 supports the luggage board 4 from below by having the side portions of the luggage board 4 in the vehicle width direction rest on its flat upper surface. In other words, the upper surface of the first support portion 51 is the support surface for the luggage board 4. The luggage board 4, which is placed on the upper surface of the first support portion 51, is set so that its width in the vehicle width direction is wider than the width of the back door opening 15 in the vehicle width direction (Figure 1). Details of the luggage board 4 will be described later. For this reason, at least a portion of the upper surface (support surface) of the first support portion 51 is located outside the vehicle width direction of the side edge portion 15A of the back door opening 15 when viewed from the front-rear direction of the vehicle (Figures 1 and 3). In other words, the entire support surface of the first support portion 51 may be provided outside the vehicle width direction of the side edge portion 15A of the back door opening 15, or a part of the support surface may be provided outside the vehicle width direction of the side edge portion 15A of the back door opening 15, and the remaining part of the support surface may be provided inside the vehicle width direction of the side edge portion 15A of the back door opening 15.

[0027] The front surface 4A of the luggage board 4 supported by the first support portion 51 is positioned to face the rear surface 22C of the seat back 22, which is in a horizontal position, as described above (Figures 1 and 2). In other words, when viewed from the front-rear direction of the vehicle, the luggage board 4 supported by the first support portion 51 is positioned to overlap with the rear surface 22C of the seat back 22 (the mounting surface of the headrest 24), which is in a horizontal position.

[0028] Furthermore, the side trim 13 in this embodiment is provided with a first contact portion 61 that abuts against the luggage board 4 which is placed on the upper surface of the first support portion 51. This first contact portion 61 restricts the movement of the luggage board 4, which is supported by the first support portion 51, in the front-rear direction, thereby positioning the luggage board 4 in the front-rear direction. Specifically, the first contact portion 61 has a convex shape that protrudes upward from the upper surface of the first support portion 51. As shown in Figure 1, on the side of the luggage board 4 in the vehicle width direction, there are multiple concave contact portions 4B that are recessed inward in the vehicle width direction, corresponding to the convex shape of the first contact portion 61, and are provided at intervals in the front-rear direction (here, two on each side). In other words, in this embodiment, the front-rear positioning of the luggage board 4 is performed by the combination of the first contact portion 61 provided on the side trim 13 and the multiple contact portions 4B provided on the luggage board 4.

[0029] When the luggage board 4 is placed on the upper surface of the first support portion 51, if the luggage board 4 is positioned so that the first contact portion 61 contacts the rear contact portion 4B of the luggage board 4, the rear surface 22C of the seat back 22 and the front surface 4A of the luggage board 4 are positioned adjacent to each other (first facing position). In Figure 2, the luggage board 4 shown with a solid line represents the state in which it is positioned in the first facing position. Note that "adjacent" in the first facing position includes "contact" and "non-contact proximity".

[0030] On the other hand, when the luggage board 4 is placed on the upper surface of the first support portion 51, if the luggage board 4 is positioned so that the first contact portion 61 contacts the front contact portion 4B of the luggage board 4, the front surface 4A of the luggage board 4 will be positioned behind the rear surface 22C of the seat back 22 (second facing position). In Figure 2, the front surface 4A' of the luggage board 4', shown by the dashed line, represents the state in which it is positioned in the second facing position.

[0031] In other words, the luggage board 4 supported by the first support portion 51 is positioned in either a first facing position or a second facing position, which are different in the front-to-back direction, relative to the rear surface 22C of the seat back 22, which is in a horizontal position. The positioning of the luggage board 4 is adjusted as appropriate to the height of the occupant (Figure 2) lying on the front seat 2 and luggage board 4 in the expanded passenger compartment space in bed mode.

[0032] Furthermore, in this embodiment, a bush fixing portion 71 is provided at the lower part of the side trim 13 at a position higher than the upper surface (board surface) of the luggage board 4 supported by the first support portion 51 for detachably fixing a bush 7 (elastic body) (Figures 1, 3, and 4). When the bush 7 is fixed to the bush fixing portion 71, it protrudes inward from the wall surface of the side trim 13 towards the vehicle interior, and the lower part of the bush 7 is configured to abut against the upper surface of the luggage board 4 supported by the first support portion 51. It is preferable to provide the bush fixing portion 71 adjacent to the first contact portion 61. By positioning the bush 7 adjacent to the first contact portion 61, even if the first contact portion 61 is subjected to load from the front-rear direction and vibrates, the vibration can be more easily absorbed by the bush 7.

[0033] The second support section 52 and the third support section 53 in the three-tiered support section 5 described above are designed to accommodate a work mode in which the luggage board 4 is used as a table for eating or performing office work using a PC, etc. The second support section 52 is positioned above the first support section 51 with a gap in between, and the third support section 53 is positioned even further above the second support section 52 with a gap in between (Figures 3 and 4).

[0034] Specifically, the second support portion 52 is formed in the middle of the vertical direction at the lower part of the side trim 13, projecting toward the interior of the vehicle. The second support portion 52 extends in the longitudinal direction of the vehicle and is divided into a front support portion 52A and a rear support portion 52B, with the boundary being the position above the recessed portion of the first support portion 51 described above. The upper surfaces of the front support portion 52A and the rear support portion 52B are substantially horizontal flat surfaces. The upper surface of the rear support portion 52B narrows in the width direction of the vehicle as it approaches the rear of the vehicle, making it difficult for the rear support portion 52B to bend vertically. The second support portion 52 supports the luggage board 4 from below by having the width direction side of the luggage board 4 rest on its flat upper surface.

[0035] Furthermore, the upper surface of the second support portion 52 is provided with a convex-shaped second contact portion 62 that protrudes upward. The second contact portion 62, corresponding to the second support portion 52, is positioned further rearward in the front-rear direction than the first contact portion 61, corresponding to the first support portion 51. Similar to the first contact portion 61 described above, the second contact portion 62 restricts the movement of the luggage board 4 supported by the second support portion 52 in the front-rear direction. The reason why the second contact portion 62 is positioned further rearward than the first contact portion 61 is to prevent the front surface 4A of the luggage board 4 supported by the second support portion 52 from interfering with the rear seat back 32 when the rear seat 3 is deployed to a position where an occupant can sit.

[0036] Furthermore, a bush fixing portion 72 is provided at the lower part of the side trim 13 at a position higher than the upper surface of the luggage board 4 supported by the second support portion 52, for detachably fixing the bush 7 described above. When the bush 7 is fixed to the bush fixing portion 72, it protrudes inward from the wall surface of the side trim 13 towards the vehicle interior, and the lower part of the bush 7 is configured to abut against the upper surface of the luggage board 4 supported by the second support portion 52. It is preferable that the bush fixing portion 72 be provided adjacent to the second contact portion 62, similar to the bush fixing portion 71 described above.

[0037] The third support portion 53 is formed on the upper part of the lower part of the side trim 13 so as to protrude into the passenger compartment. The third support portion 53 extends in the longitudinal direction of the vehicle and is divided into a front support portion 53A and a rear support portion 53B, with the boundary being the position above the recessed portion of the first support portion 51 described above. Flat surfaces are formed at the upper ends of both the front support portion 53A and the rear support portion 53B. The upper surface of the rear support portion 53B narrows in the width direction of the vehicle as it approaches the rear of the vehicle, making it difficult for the rear support portion 53B to bend in the vertical direction. The third support portion 53 supports the luggage board 4 from below by having the width direction side of the luggage board 4 rest on its flat upper surface.

[0038] Furthermore, the upper surface of the third support portion 53 is provided with a third contact portion 63 that is convex in shape and protrudes upward, similar to the second contact portion 62 described above. The third contact portion 63 is positioned further rearward than the second contact portion 62 in the front-rear direction. In addition, the lower part of the side trim 13 is provided with a bush fixing portion 73 adjacent to the third contact portion 63, at a position higher than the upper surface of the luggage board 4 supported by the third support portion 53, similar to the bush fixing portion 72 described above.

[0039] In addition, the lower part of the side trim 13 is provided with a first restricting section 81, a second restricting section 82, and a third restricting section 83, which are located behind the first support section 51, the second support section 52, and the third support section 53, respectively, and are raised inward towards the vehicle interior and extend vertically (Figures 3 and 4). The first to third restricting sections 81 to 83 each have a vertical surface that restricts the rearward movement of the luggage board 4 supported by the first to third support sections 51 to 53, a lower surface that extends forward from the upper end of the vertical surface and restricts the upward movement of the luggage board 4, an inclined surface that extends upward and forward from the front end of the lower surface, and a connecting surface that extends upward from the front end of the inclined surface. The lower ends of the vertical surfaces of the first to third restricting sections 81 to 83 are connected to the upper surfaces (support surfaces) of the first to third support sections 51 to 53. Furthermore, the upper ends of the connecting surfaces of the first and second restricting sections 81 and 82 are connected to the lower surfaces of the second and third restricting sections 82 and 83.

[0040] As the first to third restricting sections 81 to 83 described above are provided on the side trim 13, the rear support sections 51B to 53B of the first to third support sections 51 to 53 are connected to each other. Therefore, the load applied to the rear support section while the luggage board 4 supported by any of the first to third support sections 51 to 53 is in use is distributed to the other rear support sections via the first to third restricting sections 81 to 83. Thus, it becomes possible to suppress vibrations of the luggage board 4 itself or vibrations caused by the elastic deformation of each of the first to third support sections 51 to 53. Note that the first to third restricting sections 81 to 83 described above may also be arranged on the front side of the first to third support sections 51 to 53, respectively.

[0041] Regarding the three-tiered support section 5 as described above, it is preferable to set the upper surface area of ​​the first support section 51 (front support section 51A and rear support section 51B), which is used in bed mode, to be larger than the upper surface area of ​​the second support section 52 (front support section 52A and rear support section 52B) or the third support section 53 (front support section 53A and rear support section 53B), which are used in work mode. By setting the upper surface area (support surface) of the first support section 51 in this way, in bed mode, when the load (body weight) of the occupant is most likely to act on the support section 5 via the luggage board 4, the load can be more easily received by the upper surface of the first support section 51 (front support section 51A and rear support section 51B).

[0042] Here, a specific example of the configuration of the luggage board 4 in this embodiment will be described in detail with reference to Figures 5 to 7. Figure 5 is an enlarged perspective view showing the luggage board 4 positioned so that the first board surface, used in bed mode, is facing upwards. Figure 6 is an enlarged perspective view showing the luggage board 4 positioned so that the second board surface, used in work mode, is facing upwards. Furthermore, Figure 7 is a conceptual diagram illustrating the relationship between the width of the luggage board 4 and the vertical spacing of the first to third support parts 51 to 53.

[0043] As shown in Figures 5 and 6, when the luggage board 4 is placed horizontally, the front surface 4A described above faces the front of the vehicle, and the above-described multiple contact portions 4B described above are formed on both sides in the vehicle width direction. The luggage board 4 has a first board surface portion 4C and a second board surface portion 4D facing the vehicle vertical direction, with the first board surface portion 4C positioned to face the vehicle above in bed mode (Figure 5), and the second board surface portion 4D positioned to face the vehicle above in work mode (Figure 6). The first board surface portion 4C used in bed mode is set to have greater flexibility or elasticity than the second board surface portion 4D used in work mode. Specifically, the second board surface portion 4D has, for example, a sheet metal reinforcing member arranged inside a resin-molded member. However, the reinforcing member can be omitted if the resin-molded member has sufficient rigidity. The first board surface portion 4C has a surface made of a surface material, and a cushioning material is provided between the surface material and the resin molded member of the second board surface portion 4D.

[0044] In the luggage board 4 described above, the first board surface 4C, which has high flexibility or elasticity, is positioned as the upper surface in bed mode. This prevents the occupant from feeling that the floor surface is hard when they rest their body on the first board surface 4C of the luggage board 4 as a bed. On the other hand, the second board surface 4D, which has low flexibility or elasticity, is positioned as the upper surface in work mode. This allows for stable eating, office work, etc. By creating this difference in flexibility or elasticity between the first and second board surfaces 4C and 4D, it becomes possible to easily select the board surface of the luggage board 4 that suits the mode simply by flipping the luggage board 4 over.

[0045] Furthermore, the second board surface 4D used in work mode may have multiple recesses 4E to 4H formed therein, as shown in Figure 6. The first recess 4E extends in the vehicle width direction and is formed as a horizontally elongated groove, with a width in the vehicle longitudinal direction being shorter than the length in the vehicle width direction. A so-called touch-panel type thin portable device without a keyboard can be inserted into this first recess 4E and placed vertically. By using the first recess 4E to place a thin portable device vertically in this way, the display of the device can be easily viewed and touch-operated while performing office work. The second recess 4F is a substantially rectangular, flat recess extending in the vehicle longitudinal direction and in the vehicle width direction. Office equipment such as a laptop computer can be placed in this second recess 4F. Equipment placed in the second recess 4F is positioned by the peripheral wall forming the second recess 4F, making it easier for the occupant to operate the equipment. The third recess 4G and the fourth recess 4H are circular recesses, and the diameter of the fourth recess 4H is set to be larger than the diameter of the third recess 4G. Beverages can be placed in the third recess 4G, and plates can be placed in the fourth recess 4H, making it easier to perform office work while staying hydrated or eating.

[0046] In the example shown in Figure 6, the first recess 4E is formed across the width of the luggage board 4, but multiple first recesses 4E may be arranged depending on the size of the thin portable device. In addition, while multiple recesses 4E to 4H are provided on the second board surface 4D to facilitate the positioning of various items, protrusions protruding from the second board surface 4D may also facilitate the positioning of various items. For example, when a thin portable device is placed vertically, if a pair of protrusions are provided on the second board surface 4D at a predetermined interval, the thin portable device can be placed vertically between the pair of protrusions. By providing protrusions in this way, the protrusions function as ribs of the second board surface 4D, thereby increasing the rigidity of the luggage board 4. Furthermore, both recesses and protrusions may be provided on the second board surface 4D. For example, if recesses and protrusions are placed adjacent to each other, the lower part of an item can be positioned in the recesses while the upper part of the item above the lower part can be positioned in the protrusions.

[0047] Furthermore, the width W1 of the luggage board 4 in the vehicle width direction (Figures 5 and 7) is set to be wider than the width W2 of the back door opening 15 in the vehicle width direction, as described above. As shown by the dashed line in Figure 7, the vertical spacing of the first to third support parts 51 to 53 of the luggage board 4 is set so that it can be inserted into and removed from the back door opening 15 with one end in the vehicle width direction tilted upward or downward compared to the other end. Specifically, if the vertical spacing between the upper surface of the first support part 51 and the upper surface of the second support part 52 is X, and the vertical spacing between the upper surface of the second support part 52 and the upper surface of the third support part 53 is Y, then at least one of spacing X and spacing Y is set to be wider than the vertical spacing Z at both the left and right ends of the luggage board 4 in the tilted state. This configuration allows the width W1 of the luggage board 4 to be wider than the width W2 of the back door opening 15, expanding the floor space in bed mode and the workspace in work mode, while also allowing the luggage board 4 to be inserted and removed from the back door opening 15, making it easier to attach and detach the luggage board 4.

[0048] Next, in this embodiment, the state in which the passenger compartment space is expanded in work mode will be described with reference to Figures 8 and 9. Figure 8 is a perspective view showing an example of the state in which the passenger compartment space is expanded in work mode. Figure 9 is a side view illustrating the schematic arrangement of the passenger compartment in the expanded state shown in Figure 8. Note that Figure 8 shows the state with the left and right front seats 2 removed.

[0049] In the example shown in Figures 8 and 9, where the passenger compartment space is expanded for work mode, the luggage board 4 supported by the third support 53 is used as a table, and the rear seat 3, tilted up to the unfolded position with the rear seat back 32 overlapping the rear seat portion 31, is used as a chair. Although not shown here, another example of work mode is that the luggage board 4 supported by the second support 52 is used as a table, and the rear seat 3, tilted down (stored), is used as a chair.

[0050] In this extended state in work mode, the third support part 53 (or the second support part 52) ​​is configured to support the luggage board 4 at a height position (β) that is higher than the face-to-face position (α) in the extended state in bed mode, and overlaps with the steering wheel 16 (driving control part) used to operate the vehicle (Figure 9). Between the luggage board 4 supported at the height position (β) by the third support part 53 and the rear seat 3 in the deployed position, there is space for an occupant to sit on the rear seat 3 (the back of the rear seat back 32) and extend their legs below the luggage board 4. If the occupant feels the seat surface is hard, it is advisable to place a separate cushion 33 or the like on the back of the rear seat back 32 before sitting.

[0051] Furthermore, in the expanded state for the work mode, as shown by the dashed line in Figure 9, the back of the seat back 22 can be used as a backrest for an occupant sitting in the rear seat 3 by raising the seat back 22 and sliding the seat portion 21 backward. In this expanded cabin space for work mode, an occupant can sit in the rear seat 3 and use the luggage board 4, supported at height (β), as a table to comfortably eat or perform office work using a PC, etc.

[0052] As described above, in the vehicle interior structure of this embodiment, when the interior space is expanded in bed mode, the first support part 51 is configured to support the luggage board 4 at a facing position (α) where the rear surface 22C of the seat back 22, which is in a horizontal position, and the front surface 4A of the luggage board 4 face each other. As a result, a portion of the lower surface (floor surface) of the expanded interior space is made up of the highly cushioned seat surface of the seat back 22 of the front seat 2, and the step between the rear of the seat surface of the seat back 22 and the luggage board 4 is reduced, so that occupants can comfortably use the expanded interior space. In addition, since the interior space can be expanded to bed mode by tilting the seat back 22 of the front seat 2 backward, it is possible to reduce the frequency with which occupants have to get out of the front seat 2 to expand the interior space.Therefore, the vehicle interior structure of this embodiment can improve comfort in the interior space expanded to bed mode.

[0053] Furthermore, in the vehicle interior structure according to this embodiment, the upper surface of the luggage board 4, which is supported in a face-to-face position by the first support portion 51, is positioned below the upper end of the rear surface 22C of the seat back 22, which is in a horizontal position. With this arrangement of the luggage board 4, when the cushioning material on the seat surface side of the seat back 22 elastically deforms and sinks downward due to the weight of the occupant, the step difference formed between the seat surface of the seat back 22 and the upper surface of the luggage board 4 can be suppressed, so that the occupant can use the expanded interior space more comfortably.

[0054] Furthermore, in the vehicle interior structure according to this embodiment, the upper surface of the luggage board 4, which is supported in a face-to-face position by the first support portion 51, is positioned above the upper surface of the seat back frame 22A of the seat back 22, which is in a horizontal position. With this arrangement of the luggage board 4, even when the cushioning material on the seat surface side of the seat back 22 elastically deforms and sinks downward due to the weight of the occupant, the upper surface of the seat back frame 22A is lower than the upper surface of the luggage board 4, thus suppressing the occupant from feeling any discomfort or unease due to the hardness of the seat back frame 22A.

[0055] Furthermore, in the vehicle interior structure according to this embodiment, the luggage board 4, supported by the first support portion 51, is positioned in either a first facing position or a second facing position, which are different in the front-rear direction, by the first contact portion 61 provided on the side trim 13 and a plurality of contacted portions 4B provided on the luggage board 4. When a relatively tall occupant uses the expanded interior space in bed mode, if the luggage board 4 is fixed in the first facing position (where the rear surface 22C of the seat back 22 in the horizontal position and the front surface 4A of the luggage board 4 are adjacent), there is a possibility that part of the occupant's body (especially their head) when lying down on the seat surface of the seat back 22 may be positioned behind the luggage board 4. In such cases, the fixing position of the luggage board 4 can be adjusted to a second facing position, which is further back than the first facing position, thereby suppressing the discomfort the occupant feels when lying down. In addition, since the luggage board 4 is fixed in either the first or second facing position, it is possible to avoid situations where the luggage board 4 shifts position in the front-to-back direction when the occupant is lying down, causing the occupant to feel uncomfortable.

[0056] Furthermore, in the vehicle interior structure according to this embodiment, a bush 7 (elastic body) protruding inward into the vehicle interior is installed on the side trim 13 that constitutes the side wall of the vehicle interior, and the luggage board 4 supported by the first support part 51 is configured to abut against the bush 7. As a result, vibrations of the luggage board 4 can be absorbed by the bush 7, and displacement of the luggage board 4 can be prevented by the bush 7, so that occupants can use the expanded vehicle interior space more comfortably. In particular, if the bush 7 is detachably fixed to the side trim 13 at a position higher than the luggage board 4, the vertical vibration of the luggage board 4 can be effectively reduced by the bush 7, further improving the comfort of the expanded vehicle interior space. In addition, when attaching or detaching the luggage board 4 to the support part 5, the bush 7 can be removed from the side trim 13, making it possible to easily attach and detach the luggage board 4.

[0057] In addition, in the vehicle interior structure according to this embodiment, when the interior space is expanded in work mode, the rear seat 3 is adjusted to a stowed or unfolded position, and the second support part 52 or the third support part 53 is configured to support the luggage board 4 at a height (β) that is higher than the facing position (α) in bed mode and overlaps with the steering wheel 16. In this configuration, the occupant sits on the back of the rear seat back 32 and can use the luggage board 4 supported at the height (β) as a table. This allows the luggage board 4 to be used as a sleeping space for overnight stays in the vehicle in bed mode, and, if necessary, as a table for eating or doing office work in work mode. Moreover, since the luggage board 4 in work mode is at a height that overlaps with the steering wheel 16, the occupant is less likely to feel uncomfortable with the height of the luggage board when using it as a table, and can comfortably use the expanded interior space in work mode.

[0058] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and various modifications and changes are possible based on the technical idea of ​​the present invention. For example, in the embodiments described above, an example was shown in which the seat back 22 of the front seat 2 is folded backward to a horizontal position when the passenger compartment space is expanded in bed mode. However, if there is sufficient space behind the rear seats, the rear seat back may be folded backward to a horizontal position, and the rear surface of the rear seat back and the front surface of the luggage board may be positioned facing each other.

[0059] Furthermore, although the above-described embodiment explained the case in which a tilt-down type rear seat 3 is used, the rear seat is not limited to a tilt-down type. For example, a detachable rear seat may be applied to the vehicle floor, and when the vehicle space is expanded into bed mode, the rear seat itself may be removed and placed in another location (such as the side of the vehicle or outside the vehicle).

[0060] Furthermore, in the above-described embodiment, an example was shown in which a convex first contact portion 61 is provided on the side trim 13 and a concave contact portion 4B is provided on the luggage board 4 as a positioning portion for the luggage board 4. However, it is of course possible to reverse the convex and concave shapes on the side trim 13 and the luggage board 4. In addition, an example in which an elastic bush 7 is provided was described, but the bush may be made of a non-elastic material such as a resin member.

[0061] Furthermore, in the embodiments described above, an example was explained in which the headrest 24 is removed from the seatback cushion 22B when the seatback 22 is tilted backward, as shown in Figures 1 and 2. However, instead of removing the headrest 24, a notch corresponding to the shape of the headrest 24 may be formed in the luggage board 4, so that the headrest 24 attached to the seatback cushion 22B can pass through the notch in the luggage board 4 when the seatback 22 is tilted backward. Alternatively, a mechanism (for example, a rotating mechanism or a folding mechanism) may be provided to move the headrest 24 to the back side of the seatback 22, or the headrest 24 may be configured to be stored inside the seatback 22, so that the seatback 22 is tilted backward while the headrest 24 is attached to the seatback 22. [Explanation of symbols]

[0062] 1…Vehicle 11…Front floor 12…Rear floor 13…Side trim 14…Rear door opening 15... Back door opening 15A...Side edge 16… Steering wheel 2…Front seats 21... Seat part 21A...Seat frame 21B...Seat cushion 22... Seat back 22A...Seat back frame 22B...Seat back cushion 22C... Rear of the seatback in a horizontal position 23…Reclining mechanism 24... Headrest 3… Rear seats 31... Rear seat area 32... Rear seat back 4…Luggage board 4A...Front 4B…Abutted part 4C...First board surface 4D...Second board surface 5...Support part 51~53...1st~3rd support part 61~63...1st~3rd contact part 7…Bush (elastic body) 71, 72, 73... bushing fixing part 81-83...1st-3rd Regulatory Sections W1... Width of the luggage board W2...Width of the back door opening

Claims

1. A vehicle seat that allows the seat back to be positioned horizontally so that the rear of the seat surface of the seat back is horizontal when the seat back is tilted backward, A luggage board positioned behind the vehicle seat in the vehicle interior, The luggage board is supported so that its board surface is horizontal, and a support portion is provided at a position where the rear surface of the seat back and the front surface of the luggage board face each other in the horizontal position, In a vehicle interior structure that can expand the interior space according to the state of the vehicle seats, The aforementioned seat back comprises a seat back cushion that forms the seat surface and a seat back frame that supports the seat back cushion. The vehicle interior structure is characterized in that the board surface of the luggage board is positioned above the upper surface of the seat back frame of the seat back in the horizontal position, while being supported in the facing position by the support portion.

2. The vehicle interior structure according to claim 1, characterized in that the board surface of the luggage board is positioned below the upper end of the rear surface of the seat back in the horizontal position, while being supported by the support portion in the facing position.

3. A vehicle seat that allows the seat back to be positioned horizontally so that the rear of the seat surface of the seat back is horizontal when the seat back is tilted backward, A luggage board positioned behind the vehicle seat in the vehicle interior, The luggage board is supported so that its board surface is horizontal, and a support portion is provided at a position where the rear surface of the seat back and the front surface of the luggage board face each other in the horizontal position, In a vehicle interior structure that can expand the interior space according to the state of the vehicle seats, The aforementioned facing positions include a first facing position in which the rear surface of the seat back in the horizontal position and the front surface of the luggage board are adjacent to each other, and a second facing position in which the front surface of the luggage board is located further back than the first facing position relative to the rear surface of the seat back in the horizontal position. A vehicle interior structure characterized by comprising a positioning part for fixing the luggage board, which is supported by the support part, to the first facing position or the second facing position.

4. The positioning part is, A contact portion provided on the rear side of the vehicle seat in the vehicle interior, which contacts the luggage board supported by the support portion, The luggage board is provided with a contacted portion that the contacting portion contacts, The vehicle interior structure according to claim 3, characterized in that one of the contact portion and the contacted portion is provided in multiple locations corresponding to the first facing position and the second facing position, respectively.

5. A vehicle seat that allows the seat back to be positioned horizontally so that the rear of the seat surface of the seat back is horizontal when the seat back is tilted backward, A luggage board positioned behind the vehicle seat in the vehicle interior, The luggage board is supported so that its board surface is horizontal, and a support portion is provided at a position where the rear surface of the seat back and the front surface of the luggage board face each other in the horizontal position, In a vehicle interior structure that can expand the interior space according to the state of the vehicle seats, The aforementioned support is provided on the side wall of the vehicle compartment. An elastic body protruding inward into the vehicle interior is installed on the side wall of the vehicle compartment. The vehicle interior structure is characterized in that the luggage board is in contact with the elastic body while being supported at the opposing position by the support portion.

6. The vehicle interior structure according to claim 5, characterized in that the elastic body is detachably fixed to the side wall of the vehicle interior at a position higher than the luggage board supported at the opposing position.

7. A vehicle seat that allows the seat back to be positioned horizontally so that the rear of the seat surface of the seat back is horizontal when the seat back is tilted backward, A luggage board positioned behind the vehicle seat in the vehicle interior, The luggage board is supported so that its board surface is horizontal, and a support portion is provided at a position where the rear surface of the seat back and the front surface of the luggage board face each other in the horizontal position, In a vehicle interior structure that can expand the interior space according to the state of the vehicle seats, The vehicle is equipped with a rear seat located behind the aforementioned vehicle seat in the passenger compartment. The aforementioned rear seat has a rear seat portion in which an occupant sits, and a rear seat back supported by the rear seat portion. The rear seat section is configured to be adjustable to a storage position located on the floor surface of the vehicle compartment and to an extended position located above the storage position. The rear seat back is configured to be adjustable to a position that overlaps with the rear seat portion. The vehicle interior structure is characterized in that the support portion is configured to support the luggage board at a height higher than the facing position and at a height that overlaps with the driver's control unit used for operating the vehicle.

8. A vehicle seat that allows the seat back to be positioned horizontally so that the rear of the seat surface of the seat back is horizontal when the seat back is tilted backward, A luggage board positioned behind the vehicle seat in the vehicle interior, The luggage board is supported so that its board surface is horizontal, and a support portion is provided at a position where the rear surface of the seat back and the front surface of the luggage board face each other in the horizontal position, In a vehicle interior structure that can expand the interior space according to the state of the vehicle seats, The width of the luggage board in the vehicle width direction is wider than the width of the back door opening located at the rear of the vehicle body. The support portion has a support surface that supports the luggage board, The interior structure of a vehicle, characterized in that at least a portion of the support surface is located outward in the vehicle width direction from the side edge of the back door opening.

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