JP7219420B2 - vehicle floor structure - Google Patents

Description

The present disclosure relates to a vehicle floor structure.

Patent Literature 1 describes a camper. This camper is a so-called cab-over type automobile in which the engine is mounted below the driver's cab in front of the vehicle body. In this camper, an opening is formed in almost the entire rear surface of the driver's cab, and an opening is also formed in the front surface of the cargo room over almost the entire area. Accordingly, in this camper, passengers can freely move from the driver's cab to the cargo compartment, or from the cargo compartment to the driver's cab.

JP-A-7-61375

By the way, in a cab-over type vehicle as described in Patent Document 1, a kick-up portion is provided on the floor panel of the cab, and the floor rear portion behind the kick-up portion is more inclined than the floor front portion in front of the kick-up portion. In some cases, a seat on which the passenger sits is provided at the rear of the floor. In this case, when the occupant is seated on the seat, the occupant puts his or her feet on the front part of the floor, and when moving from the driver's cab (vehicle) to the cargo compartment, the occupant straddles the kick-up part from the front part of the floor to the rear part of the floor. Move to and head to the opening. In this way, when the occupant moves from the front part of the passenger compartment to the rear part of the passenger compartment, it is necessary to move from the front part of the floor to the rear part of the floor above the kick-up part, so the rearward movement is complicated. could become In addition, if a passageway for passengers to pass through is provided in the floor panel in order to facilitate rearward movement in the passenger compartment, it is necessary to ensure that the floor panel is strong enough to withstand the load input from the passenger side when passing through the passageway. occurs.

Accordingly, an object of the present disclosure is to provide a floor structure for a vehicle that can easily move back and forth in the vehicle interior and that can ensure the strength of the floor panel.

In order to solve the above problems, a vehicle floor structure according to a first aspect of the present invention includes a floor panel and a passage reinforcing member. The floor panel includes a front floor portion extending rearward from the lower front end of the passenger compartment, left and right kick-up portions extending upward from the rear portion of the front floor portion while being spaced apart from each other in the left and right directions, and rearward and upward portions of the front floor portion. The left and right rear floors extend rearward from the tops of the left and right kick-up parts while being spaced apart from each other to the left and right, and the left and right floor rear parts are arranged at a height lower than the left and right floor rear parts and are arranged from the rear of the front floor to the left and right A passage bottom plate portion extending rearward between the kick-up portions and between the left and right rear rear portions of the floors, and the left and right kick-up portions, the left and right rear rear portions of the floors, and the passage bottom plate portion standing along the left and right edge portions of the passage bottom plate portion. It has left and right passage side plate portions that block the space, and partitions the lower part of the passenger compartment. The passage reinforcing member extends along the lower surface of the passage bottom plate portion of the floor panel over the entire vehicle width direction of the passage bottom plate portion, and is fixed to the lower surface of the passage bottom plate portion to reinforce the passage bottom plate portion.

In the above configuration, the passage bottom plate portion of the floor panel is arranged at a lower height position than the rear portions of the left and right floors, and extends rearward from the rear portion of the front portion of the floor to between the left and right kick-up portions and between the rear portions of the left and right floors. An occupant in the passenger compartment can pass through the passage bottom plate portion between the floor front part and the left and right floor rear parts to move to the rear part of the passenger compartment. Therefore, when the occupant moves from the front part of the floor to the rear part of the passenger compartment, the passenger does not have to move from the front part of the floor to the rear part of the floor across the kick-up part, making it easy to move back and forth in the passenger compartment. can be done.

Further, the passage reinforcing member extends along the lower surface of the passage bottom plate portion of the floor panel over the entire vehicle width direction of the passage bottom plate portion and is fixed to the lower surface of the passage bottom plate portion to reinforce the passage bottom plate portion. The passage reinforcing member can ensure the strength of the floor panel against the load applied from the occupant side when moving back and forth in the room.

Therefore, it is possible to easily move back and forth in the vehicle interior, and to secure the strength of the floor panel.

A second aspect of the present invention is the vehicle floor structure of the first aspect, wherein the passage reinforcing member forms a closed cross section extending in the vehicle width direction between itself and the passage bottom plate portion of the floor panel.

In the above configuration, the passageway reinforcing member forms a closed cross section extending in the vehicle width direction between the passageway reinforcing member and the passageway bottom plate portion of the floor panel. This can be ensured by passage reinforcing members.

A third aspect of the present invention is the vehicle floor structure according to the first aspect or the second aspect, comprising another passage reinforcing member and a lid member. The other passage reinforcing member is arranged at a position spaced apart from the passage reinforcing member on one side in the front-rear direction, and extends along the lower surface of the passage bottom plate portion of the floor panel over the entire vehicle width direction of the passage bottom plate portion to provide a passageway. It is fixed to the lower surface of the bottom plate to reinforce the passage bottom plate. An opening is formed in a region between the passage reinforcing member and another passage reinforcing member in the passage bottom plate portion of the floor panel. The lid member is attached to the upper surface of the passage bottom plate portion of the floor panel. The cover member extends in the front-rear direction from at least above the passage reinforcing member to above the other passage reinforcing member to close the opening.

In the above configuration, since the opening is formed in the area between the passage reinforcing member and the other passage reinforcing member in the passage bottom plate portion of the floor panel, the opening can be used as an inspection opening for devices and the like arranged below the floor panel. can be used.

Further, the cover member for closing the opening is attached to the upper surface of the passage bottom plate portion of the floor panel and extends in the front-rear direction from at least above the passage reinforcing member to above other passage reinforcing members. The load when the vehicle steps on the cover member can be received by the passage bottom plate portion of the floor panel, the passage reinforcing member, and other passage reinforcing members. In this way, the cover member that closes the opening can be supported from below not only by the passage bottom plate portion of the floor panel, but also by passage reinforcing members arranged on both sides of the opening and other passage reinforcing members. Even if the opening is provided in the passage bottom plate portion, it is possible to secure the strength of the floor panel against the load input from the passenger side when moving back and forth in the vehicle compartment.

A fourth aspect of the present invention is the vehicle floor structure according to the third aspect, wherein a plurality of lid reinforcing portions extending in the front-rear direction are provided in a region of the lid member exposed downward from the opening.

In the above configuration, a plurality of lid reinforcing portions extending in the front-rear direction are provided in a region of the lid member exposed downward from the opening. can be secured by

Further, since the plurality of lid reinforcing portions extend in the front-rear direction, the load when the occupant steps on the lid member when moving back and forth in the vehicle interior is transferred to the passage reinforcing member and the other passage reinforcing member via the plurality of lid reinforcing portions. can be transmitted to the side. Therefore, it is possible to ensure the strength of the lid member against the load applied from the passenger side when moving back and forth in the vehicle compartment.

A fifth aspect of the present invention is the vehicle floor structure according to the first aspect or the second aspect, wherein the passage bottom plate portion, the left and right passage side plate portions, and the passage reinforcing member of the floor panel are The floor front, left and right kick-up parts, and left and right rear floor parts are molded separately and unitized as one part for the floor front part, left and right kick-up parts, and left and right floor rear parts Fixed.

In the above configuration, of the floor panel, the passage bottom plate portion and the left and right passage side plate portions are formed separately from the floor front portion, the left and right kick-up portions, and the left and right rear floor portions, so that the floor panel is complicated. It can be manufactured at a low cost unlike the case of integral molding using a shaped mold or the like. For example, the front floor, left and right kick-up parts, and left and right rear floors are constructed from general vehicle floor panels (floor front, kick-up parts, and floor rear parts) that do not require the aisle bottom plate and left and right aisle side plates. It can be manufactured at low cost by notching the kick-up portion of the floor panel and the central portion of the floor rear portion in the vehicle width direction.

In addition, the passage bottom plate portion of the floor panel, the left and right passage side plate portions, and the passage reinforcing member are unitized as a single part and fixed to the front portion of the floor, the left and right kick-up portions, and the left and right rear portions of the floor. Therefore, the assembly work can be simplified.

Advantageous Effects of Invention According to the present disclosure, it is possible to easily move back and forth in the vehicle interior, and to ensure the strength of the floor panel.

1 is a side view of a cab of a vehicle according to one embodiment of the present invention; FIG. FIG. 2 is a rear perspective view of the cab of FIG. 1; 4 is an exploded view of the cab; FIG. FIG. 4 is a perspective view of a floor panel; FIG. 4 is a plan view of the floor panel; It is a bottom view of a floor panel. 7 is a cross-sectional view taken along line VII-VII of FIG. 6; FIG. 6 is a cross-sectional view taken along line VIII-VIII of FIG. 5; FIG. FIG. 4 is an explanatory drawing for assembling the floor panel;

An embodiment of the present invention will be described below with reference to the drawings. In each figure, FR indicates the front of the vehicle, UP indicates the upper side, and IN indicates the inner side in the vehicle width direction. Further, in the following description, the front-rear direction means the front-rear direction of the vehicle, and the left-right direction means the left-right direction when the vehicle faces forward.

As shown in FIG. 1, a vehicle 1 according to the present embodiment is an electric vehicle whose power source is an electric motor, and is a cab-over type vehicle 1 in which a cab 2 is arranged above the power source. The cab 2 is mounted above the front portion of the body frame 3 . Left and right front wheels 11 (only the left front wheel 11 is shown in FIG. 1) are arranged on both left and right sides below the cab 2 . At the rear of the cab 2, a mounting (packaging box 4 in this embodiment) is mounted. The front surface 4 a of the packing box 4 is formed with an opening (not shown) through which the packing room in the packing box 4 can be accessed. In addition, the power source of the vehicle 1 is not limited to the electric motor, and may be an engine.

As shown in FIG. 2, the rear surface 2a of the cab 2 is formed with an opening serving as a doorway 9 to the passenger compartment 5. As shown in FIG. The entrance 9 of the rear surface 2a of the cab 2 and the opening of the front surface 4a of the cargo box 4 communicate with each other. 5) is allowed directly.

As shown in FIGS. 1 to 3, the cab 2 has a high-roof type roof panel 6 that expands the cabin 5 upward, and is formed into a box shape by joining a plurality of panels together. , which defines a compartment 5 therein. The lower part of the compartment 5 is defined by a floor panel 10, which will be described later. The front of the passenger compartment 5 is partitioned by a front panel 49 standing along the front end portion 10a of the floor panel 10 and crossing the front-rear direction. The sides of the vehicle compartment 5 are partitioned by the left and right side panels 7 standing along the left and right side ends 10b of the floor panel 10 and crossing the vehicle width direction, and the side plate portions of the roof panel 6 . The rear of the passenger compartment 5 is partitioned by a back panel 8 and a rear plate portion of the roof panel 6, which stand up along the rear end portion 10c of the floor panel 10 and intersect with the front-rear direction. In this embodiment, the doorway 9 of the rear surface 2a of the cab 2 extends from the rear end 10c of the floor panel 10 to the roof panel 6 side above the back panel 8. It is composed of two back panels 8a and 8b divided into two.

As shown in FIGS. 4 and 5, the floor panel 10 includes a floor front portion 12 extending rearward from a lower front end portion (a front end portion 10a of the floor panel 10) of the passenger compartment 5, and left and right sides behind the floor front portion 12. Left and right kick-up portions 13 extending rearward and upward from the rear portion (rear edge 19 in this embodiment) of the floor front portion 12 and upper portions of the left and right kick-up portions 13 (upper edge in this embodiment) 20), a passage bottom plate portion 15 extending rearward from the central region in the vehicle width direction of the rear portion of the floor front portion 12, and left and right edge portions 15a of the passage bottom plate portion 15. Left and right passage side plate portions 16 are provided.

The front floor portion 12 is arranged forward of the front wheels 11 (see FIG. 1) of the vehicle 1 and extends over the entire left and right sides of the floor panel 10 . In the present embodiment, a notch portion 18 (see FIG. 9) that is notched forward is formed in the center of the vehicle width direction on the rear edge 19 side of the front floor portion 12 .

The left and right kick-up portions 13 are arranged above and in front of the left and right front wheels 11 (see FIG. 1), are separated from each other in the left and right direction, and extend rearward and upward from rear edges 19 on both the left and right sides of the front floor portion 12 . Inner edges 13 a (see FIG. 9 ) of the left and right kick-up portions 13 in the vehicle width direction continuously extend upward and rearward from the notch portion 18 of the front floor portion 12 .

The left and right floor rear portions 14 are arranged above the left and right front wheels 11 (see FIG. 1), are separated from each other in the left and right direction, and extend rearward from the upper edges 20 of the left and right kick-up portions 13 . The left and right floor rear portions 14 are positioned rearward and above the floor front portion 12 and are arranged at substantially the same height. Inner edges 14a (see FIG. 9) of the left and right floor rear portions 14 extend rearward continuously from the inner edges 13a of the left and right kick-up portions 13, respectively. Left and right support members 29 that support the rear lower ends of the left and right side panels 7 connected to the floor panel 10 are fixed to the rear ends of the vehicle width direction outer ends of the left and right floor rear portions 14 . The left and right support members 29 are fixed to the left and right floor rear portions 14 while standing along the vehicle width direction outer end portions of the left and right floor rear portions 14 . Left and right seats 17a and 17b (indicated by two-dot chain lines 17a and 17b in FIG. 5) on which passengers are seated are arranged above the left and right floor rear portions 14, respectively.

The passage bottom plate portion 15 forms a floor surface of a passage extending in the longitudinal direction at the center of the vehicle compartment 5 in the vehicle width direction (between the left and right seats 17a and 17b). The passage bottom plate portion 15 is arranged at a height position lower than the left and right floor rear portions 14 (in this embodiment, substantially the same height position as the floor front portion 12), and is located at the rear portion of the vehicle width direction center of the floor front portion 12. , through between the left and right kick-up portions 13 and between the left and right floor rear portions 14 to the rear end portion 10c of the floor panel 10. As shown in FIG. A rear edge portion 15b of the passage bottom plate portion 15 defines a lower portion of the entrance/exit 9 (see FIG. 2) of the rear surface 2a of the cab 2. As shown in FIG. An inspection port (opening) 54 for servicing and inspecting devices (such as a power source) positioned below the floor panel 10 is provided in a region on the left side of the vehicle width direction center of the passage bottom plate portion 15 . A lid (lid member) 55 for closing the inspection opening 54 is mounted on the passage bottom plate portion 15 from above.

The left and right passage side plate portions 16 block the inner edge portions 13 a of the left and right kick-up portions 13 and the inner edge portions 14 a of the left and right floor rear portions 14 and the left and right edge portions 15 a of the passage bottom plate portion 15 . The left and right passage side plate portions 16 stand along the left and right edges 15a of the passage bottom plate portion 15, and extend from the inner edge 13a side of the left and right kick-up portions 13 in front to the rear end of the floor panel 10 behind. extends to portion 10c. The rear end edges 16a of the left and right passage-side plate portions 16 define both sides in the vehicle width direction of the lower end of the entrance/exit 9 (see FIG. 2) of the rear surface 2a of the cab 2. As shown in FIG.

As shown in FIG. 6, a pair of left and right underframes 33 are fixed to the lower surface of the floor front portion 12, the left and right kick-up portions 13, and the left and right rear floor portions 14 of the lower surface 10d of the floor panel 10. . The left and right underframes 33 are formed in a hat-shaped cross section that opens upward, and extend in the front-rear direction along the lower surface 10d of the floor panel 10 from the front end 10a side of the floor panel 10 to the rear end 10c. A closed cross section is defined between the lower surface 10d. The left and right underframes 33 include a frame front portion 34 fixed to the lower surface of the floor front portion 12 and a frame fixed to the rear surface of the kick-up portion 13 by continuously extending rearward and upward from the rear end of the frame front portion 34 . It has a kick-up portion 35 and a frame rear portion 36 continuously extending rearward from the rear end of the frame kick-up portion 35 and fixed to the lower surface of the floor rear portion 14 . The left and right frame kick-up portions 35 and the left and right frame rear portions 36 are arranged outside the passage bottom plate portion 15 and the left and right passage side plate portions 16 in the vehicle width direction. The left and right frame rear portions 36 are arranged at positions spaced outward in the vehicle width direction from the inner edge 14a of the floor rear portion 14 in the vehicle width direction.

A passage bottom plate reinforcing member 56 extending in the vehicle width direction between the left and right underframes 33 is fixed to the lower surface of the rear end portion of the front floor portion 12 of the lower surface 10 d of the floor panel 10 . The passage bottom plate reinforcing member 56 has a hat-shaped cross section that opens upward, forms a closed cross section extending in the vehicle width direction between itself and the lower surface of the front floor portion 12 , and reinforces the front floor portion 12 . Left and right end portions of the passage bottom plate reinforcing member 56 are fixed to the left and right underframes 33 .

A plurality of (five in this embodiment) passage bottom plate reinforcing members 57 to 61 are fixed to the bottom surface of the passage bottom plate portion 15 in the bottom surface 10d of the floor panel 10 .

A first passage bottom plate reinforcing member (passage reinforcing member or other passage reinforcing member) 57 among the plurality of passage bottom plate reinforcing members 57 to 61 is formed to have a hat-shaped cross section opening upward, and the passage bottom plate portion 15 It extends in the vehicle width direction along the lower surface of the rear end portion 15 b and is fixed to the passage bottom plate portion 15 . The first passage bottom plate reinforcing member 57 extends over the entire area of the passage bottom plate portion 15 in the vehicle width direction, and forms a closed cross section extending in the vehicle width direction between the lower surface of the passage bottom plate portion 15 and the passage bottom plate portion 15 . to reinforce. The first passage bottom plate reinforcing member 57 is arranged near the rear of the inspection opening 54 of the passage bottom plate portion 15 . Both left and right end portions of the first passage bottom plate reinforcing member 57 protrude to both left and right sides of the passage bottom plate portion 15 .

A second passage bottom plate reinforcing member (other passage reinforcing member or passage reinforcing member) 58 among the plurality of passage bottom plate reinforcing members 57 to 61 is formed with a hat-shaped cross section opening upward (see FIG. 7), It is arranged near the front of the inspection port 54 of the passage bottom plate portion 15 , extends in the vehicle width direction along the lower surface of the passage bottom plate portion 15 , and is fixed to the passage bottom plate portion 15 . That is, the inspection opening 54 of the passage bottom plate portion 15 is formed in a region of the passage bottom plate portion 15 between the first passage bottom plate reinforcing member 57 and the second passage bottom plate reinforcing member 58 . The second passage bottom plate reinforcing member 58 extends over the entire vehicle width direction of the passage bottom plate portion 15 and forms a closed cross section extending in the vehicle width direction with the lower surface of the passage bottom plate portion 15 . to reinforce.

A third passage bottom plate reinforcing member (passage reinforcing member) 59 among the plurality of passage bottom plate reinforcing members 57 to 61 is formed to have a hat-shaped cross section that opens upward, and is spaced forward from the second passage bottom plate reinforcing member 58. It is arranged at a position spaced rearward from the passage bottom plate reinforcing member 56 , extends in the vehicle width direction along the lower surface of the passage bottom plate portion 15 , and is fixed to the passage bottom plate portion 15 . The third passage bottom plate reinforcing member 59 extends over the entire width of the passage bottom plate portion 15 in the vehicle width direction, and forms a closed cross section with the lower surface of the passage bottom plate portion 15 extending in the vehicle width direction. to reinforce.

A fourth passage bottom plate reinforcing member 60 among the plurality of passage bottom plate reinforcing members 57 to 61 is formed to have a hat-shaped cross-section that opens upward, is arranged in the vicinity of the right side of the inspection opening 54 of the passage bottom plate portion 15, and is located on the passage bottom plate. It extends in the front-rear direction along the lower surface of the portion 15 and is fixed to the passage bottom plate portion 15 . The fourth passage bottom plate reinforcing member 60 extends in the front-rear direction between the first passage bottom plate reinforcing member 57 and the second passage bottom plate reinforcing member 58 , and both front and rear end portions are connected to the first passage bottom plate reinforcing member 57 . It is fixed to the second passage bottom plate reinforcing member 58 . The fourth passage bottom plate reinforcing member 60 forms a closed cross section extending in the front-rear direction with the lower surface of the passage bottom plate portion 15 to reinforce the passage bottom plate portion 15 .

A fifth passage bottom plate reinforcing member 61 among the plurality of passage bottom plate reinforcing members 57 to 61 is formed to have a hat-shaped cross section that opens upward, is arranged on the right side of the fourth passage bottom plate reinforcing member 60, and serves as the passage bottom plate portion. It extends in the vehicle width direction along the lower surface of 15 and is fixed to the passage bottom plate portion 15 . The fifth passage bottom plate reinforcing member 61 extends from the fourth passage bottom plate reinforcing member 60 to the outside in the vehicle width direction of the right edge portion 15 a of the passage bottom plate portion 15 , and is between the lower surface of the passage bottom plate portion 15 and the vehicle. A closed cross section extending in the width direction is formed to reinforce the passage bottom plate portion 15 .

As shown in FIGS. 2, 5, and 9, the rear end portion 10c of the floor panel 10 is provided with a first passage bottom plate reinforcing member 57 for reinforcing the passage bottom plate portion 15, and in addition to the left and right passage side plate portions 16, the rear end portions 10c thereof. Left and right passage side plate reinforcing members 24 that reinforce the ends, and left and right inner reinforcing members 25 and left and right outer reinforcing members 26 that reinforce the rear ends of the left and right floor rear portions 14 are fixed. The first passage bottom plate reinforcing member 57, the left and right passage side plate reinforcing members 24, the left and right inner reinforcing members 25, and the left and right outer reinforcing members 26 reinforce substantially the entire rear end portion 10c of the floor panel 10 in the vehicle width direction. do.

The left and right passage-side plate reinforcing members 24 are reinforcing members that reinforce the rear ends of the left and right passage-side plate portions 16 of the floor panel 10, and are formed in a hat-shaped cross-section that opens inward in the vehicle width direction. It extends vertically along the vehicle width direction outer surface of the rear end portion of the side plate portion 16 and is fixed to the vehicle width direction outer surface of the left and right passage side plate portions 16 . The left and right passage side plate reinforcing members 24 form closed cross sections extending in the vertical direction between the left and right passage side plate portions 16 . The lower end portions of the left and right passage side plate reinforcing members 24 are fixed to both end portions of the first passage bottom plate reinforcing member 57 in the vehicle width direction. In this embodiment, left and right connecting members 27 extending upward from the left and right passage side plate reinforcing members 24 are fixed to the left and right passage side plate reinforcing members 24 . The left and right connecting members 27 connect the left and right back panel reinforcing members 28 (see FIG. 3) fixed to the back panels 8a and 8b of the cab 2 and the left and right passage side plate reinforcing members 24, respectively.

The left and right inner reinforcing members 25 are reinforcing members that reinforce the rear ends of the left and right floor rear portions 14 of the floor panel 10, and are formed in a hat-like cross-section that opens downward so that the rear ends of the left and right floor rear portions 14 are reinforced. It extends in the vehicle width direction along the upper surface of the rear part and is fixed to the upper surface of the left and right floor rear parts 14 . The left and right inner reinforcing members 25 form a closed cross section extending in the vehicle width direction between the upper surfaces of the left and right floor rear portions 14 . The inner end portions of the left and right inner reinforcing members 25 in the vehicle width direction are fixed to the upper end portions of the left and right passage side plate reinforcing members 24 . Outer ends in the vehicle width direction of the left and right inner reinforcing members 25 are arranged at positions spaced inward in the vehicle width direction from inner side surfaces in the vehicle width direction of the left and right support members 29 of the left and right floor rear portions 14 .

The left and right outer reinforcing members 26 are reinforcing members that reinforce the rear ends of the left and right floor rear portions 14 of the floor panel 10, and are formed in a hat-like cross-section that opens downward so that the rear ends of the left and right floor rear portions 14 are reinforced. It extends in the vehicle width direction along the upper surface of the rear part and is fixed to the upper surface of the left and right floor rear parts 14 . The left and right outer reinforcing members 26 form a closed cross section extending in the vehicle width direction between the left and right outer reinforcing members 26 and the upper surfaces of the left and right floor rear portions 14 . The left and right outer reinforcing members 26 are formed smaller than the left and right inner reinforcing members 25 so as to engage with the left and right inner reinforcing members 25 from below. Outer ends in the vehicle width direction of the left and right outer reinforcement members 26 are fixed to inner side surfaces in the vehicle width direction of left and right support members 29 of the left and right floor rear portions 14 . Regions on the vehicle width direction inner end sides of the left and right outer reinforcing members 26 are covered from above by the left and right inner reinforcing members 25, and are engaged with the vehicle width direction outer ends of the left and right inner reinforcing members 25 from below. Fixed. That is, both the left and right outer reinforcing members 26 and the left and right inner reinforcing members 25 reinforce substantially the entire rear end portions of the left and right floor rear portions 14 of the floor panel 10 in the vehicle width direction.

As shown in FIG. 6 , the lower end of a passage side plate reinforcing member 62 that reinforces the right side passage side plate portion 16 of the floor panel 10 is fixed to the right outer end portion of the fifth passage bottom plate reinforcing member 61 . The passage-side plate reinforcing member 62 is formed with a hat-shaped cross-section that opens inward in the vehicle width direction, extends vertically along the outer surface of the right passage-side plate portion 16 in the vehicle width direction, and extends vertically along the vehicle width direction outer surface of the right passage-side plate portion 16 . It is fixed to the lateral lateral surface. The passage side plate reinforcing member 62 forms a vertically extending closed cross section with the vehicle width direction outer surface of the right passage side plate portion 16 . A floor rear reinforcing member 63 extending in the vehicle width direction is provided between the upper end portion of the passage side plate reinforcing member 62 and the frame rear portion 36 of the right under frame 33 .

The floor rear reinforcing member 63 has a hat-shaped cross section that opens downward, extends in the vehicle width direction between the upper end of the passage side plate reinforcing member 62 and the frame rear portion 36 of the right under frame 33, and extends in the vehicle width direction. It is fixed to the rear part 14 . The vehicle width direction inner end portion of the floor rear reinforcing member 63 is fixed to the upper end portion of the passage side plate reinforcing member 62, and the vehicle width direction outer end portion of the floor rear reinforcing member 63 is fixed to the frame rear portion 36 of the right under frame 33. Fixed. The floor rear reinforcing member 63 connects the passage side plate reinforcing member 62 and the right underframe 33 . That is, the upper end portion of the passage side plate reinforcing member 62 is indirectly connected to the right underframe 33 via the floor rear reinforcing member 63 .

A passage side plate reinforcing member 73 that reinforces the left passage side plate portion 16 is provided in a region of the passage bottom plate portion 15 on the side of the inspection opening 54 in the left passage side plate portion 16 . The passage-side plate reinforcing member 73 has a hat-shaped cross section that opens inward in the vehicle width direction, extends vertically along the outer surface of the left passage-side plate portion 16 in the vehicle width direction, and extends vertically along the vehicle width direction outer surface of the left passage-side plate portion 16 . It is fixed to the lateral lateral surface. The passage side plate reinforcing member 73 forms a vertically extending closed cross section with the vehicle width direction outer surface of the left passage side plate portion 16 . A lower end portion of the passage side plate reinforcing member 73 is arranged in the vicinity of the side of the inspection opening 54 of the passage bottom plate portion 15 . A floor rear reinforcing member 74 extending in the vehicle width direction is provided between the upper end portion of the passage side plate reinforcing member 73 and the frame rear portion 36 of the left under frame 33 .

The floor rear reinforcing member 74 has a hat-shaped cross section that opens downward, extends in the vehicle width direction between the upper end of the passage side plate reinforcing member 73 and the frame rear portion 36 of the left under frame 33, and extends in the vehicle width direction. It is fixed to the rear part 14 . The vehicle width direction inner end portion of the floor rear reinforcing member 74 is fixed to the upper end portion of the passage side plate reinforcing member 73 , and the vehicle width direction outer end portion of the floor rear reinforcing member 74 is fixed to the frame rear portion 36 of the left under frame 33 . Fixed. The floor rear reinforcing member 74 connects the passage side plate reinforcing member 73 and the left underframe 33 .

As shown in FIGS. 2 and 5, the left and right seats 17a and 17b include a seat cushion 37 on which a passenger sits, and a seat back 52 which rises from the rear end of the seat cushion 37 and functions as a backrest for the passenger. Each has. In this embodiment, the driver side (right side) seat 17b is supported by both the right floor rear portion 14 and the passage bottom plate portion 15, and the passenger side (left side) seat 17a is supported by the left floor rear portion 14. be done.

The right seat 17b (hereinafter simply referred to as "seat 17b") is supported from below by the right floor rear portion 14 and the passage bottom plate portion 15. As shown in FIG. The seat cushion 37 of the seat 17 b has a protruding region 39 that protrudes inward in the vehicle width direction from the right passage side plate portion 16 and is arranged above the passage bottom plate portion 15 . A protruding region 39 of the seat cushion 37 is supported by the passage bottom plate portion 15 via a seat stand 40 arranged below the seat cushion 37 . A vehicle width direction outer end portion of the seat cushion 37 is supported by the right floor rear portion 14 .

As shown in FIGS. 4 and 5, the seat stand 40 includes a panel-side fixing member 42 linearly extending in the front-rear direction along the upper surface of the passage bottom plate portion 15 of the floor panel 10, and a panel-side fixing member 42 extending upward from the panel side fixing member 42. A seat-side fixing member 43 arranged at a spaced apart position to support the seat cushion 37, and front and rear legs 44 and 45 linearly extending vertically between the panel-side fixing member 42 and the seat-side fixing member 43. It is formed in a frame shape by The seat stand 40 is arranged at a position spaced inward in the vehicle width direction from the right passage side plate portion 16 and stands up along the upper surface of the right outer end portion of the passage bottom plate portion 15 of the floor panel 10 while extending in the front-rear direction. do. The panel-side fixing member 42 of the seat stand 40 is fixed to a region above the second passage bottom plate reinforcing member 58 of the passage bottom plate portion 15 at the front end side, and is fixed to the fifth passage portion of the passage bottom plate portion 15 at the rear end side. It is fixed to the area above the bottom plate reinforcing member 61 . The seat-side fixing member 43 is supported from the right floor rear portion 14 side by two front and rear stand support members 51 extending in the vehicle width direction. The front and rear stand support members 51 connect the right floor rear portion 14 and the seat side fixing member 43 to support the seat side fixing member 43 .

As shown in FIGS. 5, 6 and 8, a lid 55 for closing the inspection opening 54 is mounted on the passage bottom plate portion 15 from above. The lid 55 is sized to close the inspection opening 54 from above. A front end portion of the lid 55 is disposed forward of the inspection opening 54 and fixed to a region of the passage bottom plate portion 15 above the second passage bottom plate reinforcing member 58 in a state of being overlapped from above. A rear end portion of the lid 55 is arranged rearward of the inspection opening 54 and is fixed in a state of being overlapped with a region above the first passage bottom plate reinforcing member 57 from above. A left end portion of the lid 55 is arranged on the left side of the inspection opening 54 and extends in the front-rear direction along the vehicle width direction inner surface of the left passage-side plate portion 16 . A right end portion of the lid 55 is disposed on the right side of the inspection opening 54 and extends in the front-rear direction while overlapping a region of the passage bottom plate portion 15 above the fourth passage bottom plate reinforcing member 60 from above. In this embodiment, the lid 55 is formed by stacking and joining two upper and lower plate members 75 and 76 intersecting the vertical direction. The upper and lower plate members 75, 76 are formed to have approximately the same size. A plurality of (in this embodiment, five) beads (plurality of lid reinforcing portions) extending in the front-rear direction while protruding downward are provided in a region of the lower plate-like member 76 exposed downward from the inspection port 54 . 77 is formed. The plurality of beads 77 are separated from each other in the vehicle width direction and extend over substantially the entire area in front of and behind the inspection opening 54 .

Next, manufacturing of the floor panel 10 will be described. As shown in FIG. 9, the floor panel 10 is formed by attaching a passageway unit 22 to a floor body 21. As shown in FIG.

The floor main body 21 integrally has a floor front portion 12, left and right kick-up portions 13, and left and right floor rear portions 14. - 特許庁In this embodiment, the floor panel of a general cab-over type vehicle that does not have the passage bottom plate portion 15 (the kick-up portion rises from the entire rear portion of the floor front portion 12 in the vehicle width direction, and the rear portion of the kick-up portion The floor body 21 is formed by notching the kick-up portion of the floor panel whose floor rear portion extends rearward from the entire vehicle width direction and the vehicle width direction central portion of the floor rear portion. Left and right support members 29 and left and right outer reinforcing members 26 (the right outer reinforcing member 26 is shown in FIG. 9) are provided at the outer ends in the vehicle width direction of the rear ends of the left and right floor rear portions 14 of the floor body 21 . ) is fixed.

The passage unit 22 includes a passage bottom plate portion 15, left and right passage side plate portions 16, first passage bottom plate reinforcing members 57, left and right passage side plate reinforcing members 24, left and right inner reinforcing members 25, and left and right connecting members. 27 and the seat stand 40 are unitized as one part, which is formed separately from the floor body 21. - 特許庁The passage bottom plate portion 15 of the floor panel 10 is provided with a first fixing portion 30 that is fixed to the end edge portion of the notch portion 18 of the floor front portion 12 while overlapping from above. Left and right passage side plate portions 16 of the floor panel 10 are provided with left and right second fixing portions 31 fixed to the front surfaces of the left and right kick-up portions 13 in a state of being overlapped from the front, and the left and right second fixing portions 31 overlapping the upper surface of the floor rear portion 14 from above. Left and right third fixing portions 32 are provided to be fixed in a state. The passage unit 22 is fixed to the floor body 21 while being placed from above.

In the above configuration, the passage bottom plate portion 15 of the floor panel 10 is arranged at a height position lower than the left and right floor rear portions 14, and the space between the floor front portion 12 and the left and right kick-up portions 13 and between the left and right floor rear portions 14 is provided. extend backwards. Therefore, when an occupant seated on the seat 17a, 17b stands up from the seat 17a, 17b and tries to move to the rear (for example, the doorway 9) of the seat 17a, 17b, the floor front portion 12 and the passage bottom plate portion 15 move from the floor front portion 12 to the passage bottom plate portion 15. , and can move behind the seats 17a and 17b. In this way, when the occupants seated on the seats 17a and 17b move to the rear of the vehicle compartment 5 (behind the seats 17a and 17b), they move from the floor front portion 12 across the kick-up portion 13 onto the floor rear portion 14. Since it is not necessary to move, it is possible to easily move back and forth within the passenger compartment 5. - 特許庁

Further, passage bottom plate reinforcing members 57 to 59 are fixed to the lower surface of the passage bottom plate portion 15 of the floor panel 10 . The passage bottom plate reinforcing members 57 to 59 extend over the entire vehicle width direction of the passage bottom plate portion 15 along the lower surface of the passage bottom plate portion 15 and are fixed to the lower surface of the passage bottom plate portion 15 to reinforce the passage bottom plate portion 15. Therefore, the passage reinforcing members 57 to 59 can ensure the strength of the floor panel 10 against the load applied from the passenger side when moving forward and backward in the vehicle interior 5 .

Further, since the passage bottom plate reinforcing members 57 to 59 form a closed cross section extending in the vehicle width direction between the passage bottom plate portion 15, the floor panel 10 can withstand the load input from the passenger side when moving back and forth in the vehicle interior 5. can be ensured by the passage reinforcing members 57-59.

Also, the inspection port 54 of the passage bottom plate portion 15 is formed in a region of the passage bottom plate portion 15 between the first passage bottom plate reinforcing member 57 and the second passage bottom plate reinforcing member 58 . The first passage bottom plate reinforcing member 57 is arranged near the rear of the inspection opening 54 of the passage bottom plate portion 15, and the second passage bottom plate reinforcing member 58 is arranged near the front portion of the inspection opening 54 of the passage bottom plate portion 15. . Therefore, even if the inspection opening 54 is provided in the passage bottom plate portion 15 , the front and rear of the inspection opening 54 can be reinforced by the first passage bottom plate reinforcing member 57 and the second passage bottom plate reinforcing member 58 .

In addition, the front end of the lid 55 that closes the inspection port 54 of the passage bottom plate portion 15 is fixed in a state of being superimposed on the area above the second passage bottom plate reinforcing member 58 of the passage bottom plate portion 15 . The rear end portion is arranged rearward of the inspection opening 54 and is fixed in a state of overlapping with the upper region of the first passage bottom plate reinforcing member 57 from above. Therefore, the load when the occupant steps on the lid 55 while moving back and forth in the vehicle interior 5 is reduced by the passage bottom plate portion 15 of the floor panel 10, the first passage bottom plate reinforcing member 57, and the second passage bottom plate reinforcing member. 58 can be received. In this way, the lid 55 is supported from below not only by the passage bottom plate portion 15 but also by the first passage bottom plate reinforcing member 57 and the second passage bottom plate reinforcing member 58 arranged on both front and rear sides of the inspection opening 54 . Therefore, even if the inspection opening 54 is provided in the passage bottom plate portion 15, the strength of the floor panel 10 against the load input from the occupant side when moving back and forth in the vehicle interior 5 can be ensured.

Therefore, according to the present embodiment, it is possible to easily move back and forth in the passenger compartment 5, and the strength of the floor panel 10 can be ensured.

In addition, a plurality of beads 77 extending in the front-rear direction while projecting downward are formed in a region of the plate-like member 76 on the lower side of the lid 55 that is exposed downward from the inspection opening 54 . Therefore, the plurality of beads 77 can ensure the rigidity of the region of the lid 55 exposed downward from the inspection port 54 .

In addition, since the plurality of beads 77 of the lid 55 are spaced apart from each other in the vehicle width direction and extend over substantially the entire area in front of and behind the inspection opening 54 , the occupant does not step on the lid 55 when moving back and forth in the vehicle interior 5 . The load at this time can be transmitted to the first passage bottom plate reinforcing member 57 and the second passage bottom plate reinforcing member 58 via the plurality of beads 77 . Therefore, it is possible to secure the strength of the lid 55 against the load input from the passenger side when moving back and forth in the vehicle interior 5 .

Further, since the passage bottom plate portion 15 and the left and right passage side plate portions 16 of the floor panel 10 are formed separately from the floor front portion 12, the left and right kick-up portions 13, and the left and right rear floor portions 14, the floor panel 10 is can be manufactured at a low cost, unlike the case of integrally molding using a mold having a complicated shape or the like. In this embodiment, as described above, the floor body 21 is molded by notching the kick-up portion of the floor panel of a general cab-over type vehicle and the central portion of the rear portion of the floor in the vehicle width direction. It can be manufactured at a low cost using the floor panel of the above-mentioned general cab-over type vehicle without the need for a mold or the like.

Further, since the passage bottom plate portion 15 and the left and right passage side plate portions 16 of the floor panel 10 are unitized as one passage unit 22 and fixed to the floor main body 21, the assembly work of the floor panel 10 is reduced. can be simplified.

In this embodiment, the seat cushion 37 of the seat 17b is provided with the projecting region 39, and the seat stand 40 is provided between the passage bottom plate portion 15 of the floor panel 10 and the seat 17b. do not have. For example, the seat cushion 37 of the seat 17b may not be provided with the projecting region 39, and the seat stand 40 may be omitted.

In addition, in the present embodiment, the plurality of passage bottom plate reinforcing members 57 to 61 are formed in a hat-shaped cross section that opens upward, but the shape of the plurality of passage bottom plate reinforcing members 57 to 61 is not limited to this. Any other shape (for example, a rectangular cylindrical shape) may be used as long as it can reinforce the passage bottom plate portion 15 of the floor panel 10 .

In addition, in the present embodiment, three passage bottom plate reinforcing members (passage reinforcing members) 57 to 59 extending over the entire vehicle width direction of the passage bottom plate portion 15 of the floor panel 10 are provided, but the present invention is limited to this. Instead, at least one passage reinforcing member may be provided.

Moreover, in the present embodiment, the lid 55 is formed by the two upper and lower plate-like members 75 and 76, but it is not limited to this. For example, it may be formed by one plate-like member, or may be formed by three or more plate-like members.

Further, in this embodiment, a plurality of (in this embodiment, five) beads (a plurality of lid reinforcing portions) 77 are formed in the area of the lid 55 exposed downward from the inspection port 54, but the lid reinforcing portion It is not limited to the bead 77 and may be, for example, a rib.

Also, in the present embodiment, the lid 55 is provided with a plurality of beads (a plurality of lid reinforcing portions) 77, but the lid reinforcing portion may not be provided.

In the present embodiment, the inspection opening 54 is provided in the passage bottom plate portion 15 of the floor panel 10, and the lid 55 is attached to the passage bottom plate portion 15. However, the inspection opening 54 and the lid 55 are not limited to this. It does not have to be provided.

Further, in the present embodiment, the passage bottom plate portion 15 and the left and right passage side plate portions 16 of the floor panel 10 are unitized as the passage unit 22 and assembled to the floor main body 21, but the present invention is limited to this. Alternatively, the floor panel 10 may be integrally formed by press working or the like without unitizing the passage bottom plate portion 15 and the left and right passage side plate portions 16 of the floor panel 10 .

Further, in the present embodiment, the cab 2 is provided with the high roof type roof panel 6 that expands the passenger compartment 5 upward, but the present invention is not limited to this, and a normal height roof panel is provided on the cab 2. may

In this embodiment, the entrance 9 is provided on the rear surface 2a of the cab 2, and the passage bottom plate portion 15 of the floor panel 10 is used as a passage from the floor front portion 12 to the entrance 9 (or from the entrance 9 to the floor front portion 12). However, it is not limited to this. For example, without providing the entrance 9 on the rear surface 2a of the cab 2, the passage bottom plate portion 15 of the floor panel 10 can be moved from the floor front portion 12 to the area behind the left and right seats 17a and 17b (or from the left and right seats 17a and 17b). It may also be a passage from the rear area to the floor front part 12).

Although the present invention has been described above based on the above embodiments, the present invention is not limited to the contents of the above embodiments, and can be appropriately modified without departing from the scope of the present invention. In other words, all other embodiments, examples, operation techniques, etc. made by those skilled in the art based on this embodiment are naturally included in the scope of the present invention.

The vehicle cab structure according to the present disclosure can be widely applied to vehicles such as trucks.

1: Vehicle 2: Cab 5: Cabin 10: Floor panel 12: Floor front part 13: Left and right kick-up part 14: Left and right floor rear part 15: Passage bottom plate part 16: Left and right passage side plate part 54: Inspection opening (opening )
55: Lid (lid member)
57: First passage bottom plate reinforcing member (passage reinforcing member or other passage reinforcing member)
58: Second passage bottom plate reinforcing member (other passage reinforcing member or passage reinforcing member)
59: Third passage bottom plate reinforcing member (passage reinforcing member)
77: Multiple beads (multiple lid reinforcements)

Claims (4)

A front floor portion extending rearward from a lower front end portion of the passenger compartment, left and right kick-up portions extending upward from the rear portion of the front floor portion while being separated from each other in the left and right directions, and arranged rearwardly and upwardly of the front portion of the floor. left and right floor rear portions extending rearward from the upper portions of the left and right kick-up portions while being spaced apart from each other to the left and right; a passage bottom plate portion extending rearward between the left and right kick-up portions and between the left and right floor rear portions; a floor panel having left and right passage side plate portions blocking a space between the floor plate portion and the passage bottom plate portion, and partitioning a lower portion of the vehicle compartment;
a passage reinforcing member that extends along the lower surface of the passage bottom plate portion of the floor panel over the entire vehicle width direction of the passage bottom plate portion and is fixed to the lower surface of the passage bottom plate portion to reinforce the passage bottom plate portion; ,
is arranged at a position spaced apart from the passage reinforcing member on one side in the front-rear direction, and extends along the lower surface of the passage bottom plate portion of the floor panel over the entire vehicle width direction of the passage bottom plate portion; another passage reinforcing member fixed to the lower surface of the portion to reinforce the passage bottom plate portion;
a lid member attached to the upper surface of the passage bottom plate portion of the floor panel ;
An opening is formed in a region of the passage bottom plate portion of the floor panel between the passage reinforcing member and the other passage reinforcing member,
The lid member extends in the front-rear direction from at least above the passage reinforcing member to above the other passage reinforcing member to close the opening.
A vehicle floor structure characterized by: A vehicle floor structure according to claim 1,
A plurality of lid reinforcing portions extending in the front-rear direction are provided in a region of the lid member exposed downward from the opening.
A vehicle floor structure characterized by: A front floor portion extending rearward from a lower front end portion of the passenger compartment, left and right kick-up portions extending upward from the rear portion of the front floor portion while being separated from each other in the left and right directions, and arranged rearwardly and upwardly of the front portion of the floor. left and right floor rear portions extending rearward from the upper portions of the left and right kick-up portions while being spaced apart from each other to the left and right; a passage bottom plate portion extending rearward between the left and right kick-up portions and between the left and right floor rear portions; a floor panel having left and right passage side plate portions blocking a space between the floor plate portion and the passage bottom plate portion, and partitioning a lower portion of the vehicle compartment;
a passage reinforcing member that extends along the lower surface of the passage bottom plate portion of the floor panel over the entire vehicle width direction of the passage bottom plate portion and is fixed to the lower surface of the passage bottom plate portion to reinforce the passage bottom plate portion; , and
The passage bottom plate portion, the left and right passage side plate portions, and the passage reinforcing member of the floor panel are formed separately from the floor front portion, the left and right kick-up portions, and the left and right floor rear portions of the floor panel. and fixed to the floor front portion, the left and right kick-up portions, and the left and right rear floor portions in a unitized state as one part. A vehicle floor structure according to any one of claims 1 to 3,
The passage reinforcing member forms a closed cross section extending in the vehicle width direction between itself and the passage bottom plate portion of the floor panel.
A vehicle floor structure characterized by:

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