WO2021060306A1

WO2021060306A1 - Cab structure of vehicle

Info

Publication number: WO2021060306A1
Application number: PCT/JP2020/035890
Authority: WO
Inventors: 遼後藤
Original assignee: いすゞ自動車株式会社
Priority date: 2019-09-27
Filing date: 2020-09-24
Publication date: 2021-04-01
Also published as: CN114450215B; JP2021054151A; CN114450215A; JP7212865B2

Abstract

A cab rear plate part 33 that partitions the rear side of the interior of a vehicle is constituted by a back panel 8 and a roof rear plate part 6b of a roof panel 6. An entrance 9 in a rear surface of the cab is formed upward as a cutout from the lower end side of the back panel 8 and extends up to an upper end part of the roof rear plate part 6b. An opening reinforcement member 46 includes left and right back-panel inner-side reinforcement members 28 that reinforce an inner end part 42, in the vehicle width direction, of each back panel 8a, 8b, left and right roof inner-side reinforcement members 47 that reinforce respective left and right cutout lateral-edge parts 43 of the roof rear plate part 6b, and a roof upper-side reinforcement member 48 that reinforces a cutout upper-edge part 44 of the roof rear plate part 6b. Left and right transverse reinforcement members 49 extending in the vehicle width direction are fixed on a front surface of each back panel 8a, 8b between the left and right back-panel inner-side reinforcement members 28 and respective left and right side panels 7.

Description

Vehicle cab structure

This disclosure relates to the cab structure of the vehicle.

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

Japanese Patent Application Laid-Open No. 7-61375

In the camper (vehicle) described in Patent Document 1, since an opening is formed in almost the entire rear surface of the driver's cab, the strength and rigidity of the cab may decrease.

Therefore, an object of the present disclosure is to provide a vehicle cab structure capable of ensuring the strength of the cab even if an opening is provided at the rear of the cab.

In order to solve the above problems, the first aspect of the present disclosure is a vehicle cab structure including left and right side panels, a floor panel, a cab rear plate portion, an opening reinforcing member, and left and right connecting reinforcing members. The left and right side panels stand on both sides of the passenger compartment in the vehicle width direction. The floor panel divides the lower part of the passenger compartment. The rear plate portion of the cab is formed in a notch shape from the lower end side upward and has an opening that allows the passenger compartment to be opened rearward, and stands up along the rear end portion of the floor of the floor panel to partition the rear portion of the passenger compartment. .. The opening reinforcing members are the left and right vertical reinforcing portions extending in the vertical direction along the opening side edges on both the left and right sides of the cab and fixed to the left and right opening side edges, and the cab rear plate portion. Of these, it has a horizontal reinforcing portion that extends in the vehicle width direction along the opening upper edge portion of the opening, is fixed to the opening upper edge portion, and connects the left and right vertical reinforcing portions. The left and right connecting reinforcing members are arranged above the lower end of the cab rear plate portion, extend from the left and right vertical reinforcing portions of the opening reinforcing member to the left and right side panels on the outside in the vehicle width direction, and are fixed to the cab rear plate portion. It is done to reinforce the rear plate of the cab.

In the above configuration, the rear plate portion of the cab is provided to partition the rear part of the passenger compartment, and an opening is formed in the rear plate portion of the cab. However, the strength of the cab can be ensured by the rear plate portion of the cab.

Further, since the opening reinforcing member for reinforcing the edge portion of the opening of the rear plate portion of the cab (the left and right opening side edges and the upper edge portion of the opening) is fixed to the rear plate portion of the cab, an opening is provided in the rear plate portion of the cab. However, the strength of the cab can be ensured by the opening reinforcing member.

Further, since the left and right connecting reinforcing members are fixed to the rear plate portion of the cab, the strength of the cab can be ensured by the left and right connecting reinforcing members.

Further, since the left and right connecting reinforcing members extend from the left and right vertical reinforcing portions of the opening reinforcing member to the left and right side panels, when a load is input to the side panel on one side in the direction of falling inward in the vehicle width direction, the load is applied. The load can be transmitted from the side panel on one side to the side panel on the other side via the connecting reinforcing member on one side, the opening reinforcing member, and the connecting reinforcing member on the other side. Therefore, it is possible to secure the strength of the cab when a load is input in the direction of tilting inward in the vehicle width direction with respect to the side panel.

The second aspect of the present disclosure is the vehicle cab structure of the first aspect, which includes a floor reinforcing member. The floor reinforcing member is fixed to the rear end of the floor and reinforces the rear end of the floor in the vehicle width direction. The lower ends of the left and right vertical reinforcing portions of the opening reinforcing member are connected to the floor reinforcing member.

In the above configuration, the floor reinforcing member reinforces the rear end of the floor in the vehicle width direction, so that the rigidity of the rear end of the floor can be ensured and the strength of the cab can be ensured.

Further, the lower end sides of the left and right vertical reinforcing portions of the opening reinforcing member are connected to the floor reinforcing member that reinforces the rear end portion of the floor in the vehicle width direction. Therefore, since the entire peripheral area of the opening can be surrounded by a part of the opening reinforcing member and the floor reinforcing member, the strength of the cab can be increased by the opening reinforcing member and the floor reinforcing member even if the opening is provided in the rear plate portion of the cab. Can be secured.

The third aspect of the present disclosure is the vehicle cab structure of the first aspect or the second aspect, which includes a high roof type roof panel and a back panel. The roof panel has a roof back panel that constitutes an area above a predetermined height position of the rear plate portion of the cab, and expands the passenger compartment upward. The back panel constitutes a region below the predetermined height position of the cab rear plate portion, and the outer end portions in the vehicle width direction are connected to the rear end portions of the left and right side panels. The left and right connecting reinforcing members extend in the vehicle width direction along the upper end portion of the back panel to reinforce the upper end portion of the back panel.

In the above configuration, the left and right connecting reinforcing members extend in the vehicle width direction along the upper end portion of the back panel to reinforce the upper end portion of the back panel, so that the upper end edge of the opening is arranged near the lower side of the upper end portion of the back panel. Alternatively, even when the upper end edge of the opening is arranged on the roof back panel side, the rigidity of the upper end portion of the back panel can be ensured to ensure the strength of the cab.

The fourth aspect of the present disclosure is the vehicle cab structure of the second aspect or the third aspect, and the floor panels are left and right of each other with the front part of the floor extending rearward from the lower part of the front end of the passenger compartment. The left and right kick-up parts that extend upward from the rear of the front part of the floor in a separated state, and the left and right kick-up parts that are arranged behind and above the front part of the floor and extend from the upper part of the left and right kick-up parts to the rear. The aisle bottom plate and the aisle bottom plate, which are arranged at a height lower than the left and right floor rear parts and the left and right floor rear parts, and extend rearward from the rear part of the floor front part to the left and right kick-up parts and between the left and right floor rear parts. It has left and right kick-up portions and left and right aisle side plate portions that stand up along the left and right edge portions of the portion and close between the left and right floor rear portions and the aisle bottom plate portion. The floor reinforcing members extend in the vehicle width direction along the rear ends of the left and right floor rear parts, and are fixed to the left and right floor rear parts. The left and right aisle side plate reinforcements that extend downward along the vehicle width direction outer surface of the rear end of the left and right aisle side plates and are fixed to the left and right aisle side plates, and the lower surface of the rear end of the aisle bottom plate. It has a passage reinforcing portion that extends in the vehicle width direction along the vehicle width and is fixed to the passage bottom plate portion to connect the lower ends of the left and right passage side plate reinforcing portions. The lower end of the cab rear plate is supported by the rear ends of the left and right floor rear parts. The rear end of the aisle bottom plate partitions below the opening. The lower end sides of the left and right vertical reinforcing portions of the opening reinforcing member are connected to the upper end side of the left and right aisle side plate reinforcing portions of the floor reinforcing member.

In the above configuration, the aisle bottom plate of the floor panel is arranged at a height lower than the rear of the left and right floors, and extends rearward from the rear of the front of the floor to the left and right kick-ups and between the rear of the left and right floors. , The rear end of the aisle bottom plate partitions below the opening. Therefore, when the occupant tries to move from the front part of the passenger compartment to the opening side of the rear plate portion of the cab, the occupant can move from the front part of the floor through the bottom plate portion of the aisle to the rear opening. In this way, the occupant does not have to move from the front part of the floor to the rear opening across the kick-up part when going from the front part of the floor to the rear opening, so that the occupant can easily move from the passenger compartment to the rear opening. You can move.

According to the present disclosure, the strength of the cab can be ensured even if an opening is provided at the rear of the cab.

FIG. 1 is a side view of a vehicle cab according to an embodiment of the present disclosure. FIG. 2 is a perspective view from the rear of the cab of FIG. FIG. 3 is an exploded view of the cab. FIG. 4 is a perspective view of the floor panel. FIG. 5 is an assembly explanatory view of the floor panel. FIG. 6 is a partially cutaway perspective view from the rear of the rear end portion of the floor panel. FIG. 7 is an explanatory view of reinforcement around the doorway on the rear surface of the cab.

Hereinafter, one embodiment of the present disclosure will be described 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 in a state of facing the front of the vehicle.

As shown in FIG. 1, the vehicle 1 according to the present embodiment is an electric vehicle whose power source is an electric motor (not shown), and the cab 2 is a cab-over type vehicle 1 arranged above the power source. Is. The cab 2 is mounted above the front portion of the vehicle body frame 3. Left and right front wheels 11 (only the left front wheel 11 is shown in FIG. 1) are arranged on the left and right sides below the cab 2. A frame (in this embodiment, a packing box 4) is mounted behind the cab 2. An opening (not shown) that allows entry and exit to the luggage compartment in the packing box 4 is formed on the front surface 4a of the packing box 4. The power source of the vehicle 1 is not limited to the electric motor, but may be an engine.

As shown in FIG. 2, the rear surface 2a of the cab 2 is formed with an opening that serves as an entrance / exit (opening) 9 to the passenger compartment 5. The entrance 9 of the rear surface 2a of the cab 2 and the opening of the front surface 4a of the packing box 4 communicate with each other, and by such communication, from the passenger compartment 5 to the luggage compartment in the packing box 4 (or from the luggage compartment in the packing box 4). Direct movement to the passenger compartment 5) is allowed.

As shown in FIGS. 1 to 3, the cab 2 is a cab 2 having a high roof type roof panel 6 that expands the passenger compartment 5 upward, and is formed in a box shape by joining a plurality of panels to each other. , The passenger compartment 5 is partitioned inside. The roof panel 6 has a roof upper plate portion 6a extending upward from the front lower end edge of the roof panel 6 and intersecting the vertical direction, and a roof extending downward from the rear end edge of the roof upper plate portion 6a and intersecting the front-rear direction. It is formed by a rear plate portion (roof back panel) 6b and left and right roof side plate portions 6c extending downward from the left and right both end edges of the roof upper plate portion 6a and intersecting the vehicle width direction. The lower part of the passenger compartment 5 is partitioned by the floor panel 10. The front of the vehicle interior 5 is partitioned by a front panel 52 that stands up along the front end portion 10a of the floor panel 10 and intersects the front-rear direction. The sides of the passenger compartment 5 are continuously upward from the left and right side panels 7 standing along the left and right side end portions 10b of the floor panel 10 and intersecting the vehicle width direction, and the upper ends of the left and right side panels 7. It is partitioned by the left and right roof side plate portions 6c extending to. The rear of the passenger compartment 5 is continuously upward from the back panel 8 that stands up along the rear end portion (floor rear end portion) 10c of the floor panel 10 and intersects the front-rear direction, and the upper end portion 39 of the back panel 8. It is partitioned by an extending roof rear plate portion 6b. That is, in the present embodiment, the cab rear plate portion 33 that partitions the rear of the vehicle interior 5 is composed of the back panel 8 and the roof rear plate portion 6b of the roof panel 6. The back panel 8 is formed below the predetermined height position of the cab rear plate portion 33 (the height position indicated by the alternate long and short dash line 34 in FIG. 2), and the roof rear plate portion 6b is the cab rear plate portion 33. Of these, it constitutes above the above-mentioned predetermined height position. The entrance / exit 9 of the rear surface 2a of the cab 2 is formed in a notch shape upward from the lower end side of the back panel 8 (the lower end side of the cab rear plate portion 33) and extends to the upper end portion of the roof rear plate portion 6b. That is, the back panel 8 is composed of two

back panels

8a and 8b divided into two left and right by the doorway 9.

As shown in FIGS. 4 and 5, the floor panel 10 has a floor front portion 12 extending rearward from the lower front end portion of the passenger compartment 5 (front end portion 10a of the floor panel 10) and both left and right rear sides of the floor front portion 12. Left and right kick-up portions 13 extending rearward and upward from the rear portion (rear end edge 19 in this embodiment) of the floor front portion 12 and the upper portion of the left and right kick-up portions 13 (upper end edge in this embodiment). Along the left and right floor rear portions 14 extending rearward from 20), the aisle bottom plate portion 15 extending rearward from the central region of the rear portion of the floor front portion 12 in the vehicle width direction, and the left and right edge portions 15a of the aisle bottom plate portion 15. It has left and right aisle side plate portions 16 (in FIG. 4, the right aisle side plate portion 16 is shown) that stands upright.

The floor front portion 12 is arranged in front of the front wheel 11 (see FIG. 1) of the vehicle 1 and extends to the left and right of the floor panel 10. In the present embodiment, a notch 18 cut out toward the front is formed at the center of the floor front portion 12 on the rear edge side in the vehicle width direction.

The left and right kick-up portions 13 are arranged above the front of the left and right front wheels 11 (see FIG. 1), are separated from each other to the left and right, and are rear of the floor front portion 12 located on the left and right sides of the notch portion 18 of the floor front portion 12. It extends posteriorly and upwardly from the edge 19. The inner edge 13a of the left and right kick-up portions 13 in the vehicle width direction continuously extends rearward and upward from the notch 18 of the floor front 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 to the left and right, and extend rearward from the upper end edges 20 of the left and right kick-up portions 13. The left and right floor rear portions 14 are located behind and above the floor front portion 12, and are arranged at substantially the same height as each other. The inner edge 14a of the left and right floor rear portions 14 in the vehicle width direction continuously extends rearward from the inner edge 13a of the left and right kick-up portions 13. Left and right support members 29 for supporting the rear lower end portions of the left and right side panels 7 are fixed to the rear end portions of the left and right floor rear portions 14 in the vehicle width direction. The left and right support members 29 are fixed to the left and right floor rear portions 14 in a state of standing along the outer end portions of the left and right floor rear portions 14 in the vehicle width direction. The left and right seats 17 (see FIG. 2) on which the occupants are seated are arranged above the left and right floor rear portions 14. Note that FIG. 2 shows only the sheet 17 on the right side.

The aisle bottom plate portion 15 forms the floor surface of the aisle extending in the front-rear direction at the center of the passenger compartment 5 in the vehicle width direction (between the left and right seats 17). The aisle bottom plate portion 15 is arranged at a height position below the left and right floor rear portions 14 (in this embodiment, substantially the same height position as the floor front portion 12), and the left and right kick-up portions 13 are arranged from the floor front portion 12. It extends to the doorway 9 of the rear surface 2a of the cab 2 through the space and between the left and right floor rear parts 14. The rear end edge portion 15b of the passage bottom plate portion 15 partitions below the entrance / exit 9 of the rear surface 2a of the cab 2. That is, the rear end edge portion 15b of the passage bottom plate portion 15 becomes the lower edge portion of the entrance / exit 9.

The left and right aisle side plate portions 16 close between the inner end edges 13a of the left and right kick-up portions 13 and the inner end edges 14a of the left and right floor rear portions 14 and the left and right edge portions 15a of the aisle bottom plate portion 15. The left and right aisle side plate portions 16 extend from the inner end edge 13a side of the front left and right kick-up portions 13 to the rear end portion 10c of the rear floor panel 10 in an upright state. The rear end edge portions 16a of the left and right aisle side plate portions 16 partition both sides of the lower end portion of the entrance / exit 9 of the rear surface 2a of the cab 2 in the vehicle width direction.

As shown in FIGS. 4 to 6, the floor reinforcing member 40 is fixed to the rear end portion 10c of the floor panel 10. The floor reinforcing member 40 is a reinforcing member that reinforces substantially the entire area of the rear end portion 10c of the floor panel 10 in the vehicle width direction, and is a first reinforcing member (passage bottom plate reinforcing portion) 23 and left and right second reinforcing members ( It is composed of left and right aisle side plate reinforcing portions) 24, left and right third reinforcing members (left and right floor rear reinforcing portions) 25, and left and right fourth reinforcing members (left and right floor rear reinforcing portions) 26.

The first reinforcing member 23 is a reinforcing member that reinforces the rear end portion of the passage bottom plate portion 15 of the floor panel 10, and is formed in a cross-section hat shape that opens upward, and is a lower surface of the rear end portion of the passage bottom plate portion 15. It extends in the vehicle width direction along the above and is fixed to the lower surface of the passage bottom plate portion 15. The first reinforcing member 23 forms a closed cross section extending in the vehicle width direction with the passage bottom plate portion 15. Both ends of the first reinforcing member 23 in the vehicle width direction are arranged outside the passage bottom plate portion 15 in the vehicle width direction.

The left and right second 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 the shape of a cross-sectional hat that opens inward in the vehicle width direction, and the left and right passages. It extends in the vertical direction along the outer surface of the rear end of the side plate portion 16 in the vehicle width direction, and is fixed to the outer surface of the left and right passage side plate portions 16 in the vehicle width direction. The left and right second reinforcing members 24 form a closed cross section extending in the vertical direction between the left and right passage side plate portions 16. The lower ends of the left and right second reinforcing members 24 are fixed to both ends of the first reinforcing member 23 in the vehicle width direction. The left and right connecting members 27 extending upward from the left and right second reinforcing members 24 are fixed to the left and right second reinforcing members 24. The left and right connecting members 27 connect the left and right back panel inner reinforcing members 28 (see FIG. 3) fixed to the

back panels

8a and 8b described later of the cab 2 and the left and right second reinforcing members 24.

The left and right third 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 cross-section hat shape that opens downward to be rear of the left and right floor rear portions 14. It extends in the vehicle width direction along the upper surface 14b of the end portion and is fixed to the upper surface 14b of the left and right floor rear portions 14. The left and right third reinforcing members 25 form a closed cross section extending in the vehicle width direction between the left and right third reinforcing members 25 and the left and right floor rear portions 14. The inner ends of the left and right third reinforcing members 25 in the vehicle width direction are fixed to the upper ends of the left and right second reinforcing members 24. That is, the left and right third reinforcing members 25 extend from the inner end side in the vehicle width direction of the left and right floor rear portions 14 to the outside in the vehicle width direction. The outer end portions 25a of the left and right third reinforcing members 25 in the vehicle width direction are arranged at positions separated inward in the vehicle width direction from the inner side surfaces 29a of the left and right support members 29 of the left and right floor rear portions 14 in the vehicle width direction.

The left and right fourth 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 cross-section hat shape that opens downward to be rear of the left and right floor rear portions 14. It extends in the vehicle width direction along the upper surface 14b of the end portion and is fixed to the upper surface 14b of the left and right floor rear portions 14. The left and right fourth reinforcing members 26 form a closed cross section extending in the vehicle width direction between the left and right fourth reinforcing members 26 and the left and right floor rear portions 14. The left and right fourth reinforcing members 26 are formed in a hat shape having a cross section smaller than that of the left and right third reinforcing members 25 so as to engage the left and right third reinforcing members 25 from below. The outer ends of the left and right fourth reinforcing members 26 in the vehicle width direction are fixed to the inner side surfaces 29a of the left and right support members 29 of the left and right floor rear portions 14 in the vehicle width direction. That is, the left and right fourth reinforcing members 26 extend inward in the vehicle width direction from the outer end side in the vehicle width direction of the left and right floor rear portions 14. The area on the inner end side in the vehicle width direction of the left and right fourth reinforcing members 26 is covered from above by the left and right third reinforcing members 25, and engages with the outer end portions 25a in the vehicle width direction of the left and right third reinforcing members 25 from below. It is fixed in the fitted state. That is, the rear ends of the left and right floor rear portions 14 of the floor panel 10 are reinforced by both the left and right fourth reinforcing members 26 and the left and right third reinforcing members 25 over substantially the entire width direction of the vehicle. ..

Next, the manufacture of the floor panel 10 will be described. As shown in FIG. 5, the floor panel 10 is formed by attaching the passage unit 22 to the floor body 21.

The floor body 21 integrally has a floor front portion 12, left and right kick-up portions 13, and left and right floor rear portions 14. In the present embodiment, the floor panel of a general cab-over type vehicle having no passage bottom plate portion 15 (a kick-up portion stands up 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 is concerned. The floor body 21 is formed by notching the kick-up portion (floor panel extending from the entire width direction of the vehicle) and the central portion in the vehicle width direction of the rear portion of the floor. The left and right support members 29 and the left and right fourth reinforcing members 26 (the fourth reinforcing member 26 on the right side is shown in FIG. 5) at the rear ends of the left and right floor rear portions 14 of the floor body 21 in the vehicle width direction. It is fixed.).

The passage unit 22 includes a passage bottom plate portion 15, left and right passage side plate portions 16, a first reinforcing member 23, left and right second reinforcing members 24, left and right third reinforcing members 25, and left and right connecting members 27. Is unitized as one part, and is molded separately from the floor body 21. The passage bottom plate portion 15 of the floor panel 10 is provided with a first fixing portion 30 that is fixed to the edge portion of the notch portion 18 of the floor front portion 12 in a state of being overlapped from above. The left and right aisle side plate portions 16 of the floor panel 10 are 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 and the upper surface 14b of the floor rear portion 14 are overlapped from above. Left and right third fixing portions 32, which are fixed in a vertical state, are provided. The passage unit 22 is fixed to the floor main body 21 in a state of being mounted from above.

As shown in FIGS. 3 and 7, the left and right side panels 7 of the cab 2 have door openings 37 that can open the passenger compartment 5 to the outside in the vehicle width direction, and are provided at the left and right side end portions 10b of the floor panel 10. Stand up along. The rear end portions 36 of the left and right side panels 7 are provided with pillars (not shown) that are formed in a closed cross-sectional shape and extend in the vertical direction. The lower end side of the rear end portion 36 of the left and right side panels 7 is joined to the left and right support members 29 of the left and right floor rear portions 14 in a state of being overlapped from the outside in the vehicle width direction. A seatbelt anchor (not shown) of a seatbelt (not shown) that can restrain the occupant to the seat 17 is supported on the upper part of the inner side surface in the vehicle width direction in the region behind the door opening 37 of the left and right side panels 7. An anchor support portion 51 is provided. In FIG. 7, the right side panel 7 is shown, and the left side panel 7 is omitted.

As shown in FIGS. 2, 3 and 7, the back panel 8 of the cab 2 is composed of two

back panels

8a and 8b divided into two left and right by the doorway 9. The outer end portions 35 on both sides of the back panel 8 in the vehicle width direction (the outer end portion in the vehicle width direction of the left back panel 8a and the outer end portion in the vehicle width direction of the right back panel 8b) are the rear ends of the left and right side panels 7. It is joined to the portion 36. The lower end portions 41 of the

back panels

8a and 8b extend in the vehicle width direction along the rear end portions of the left and right floor rear portions 14 of the rear end portions 10c of the floor panel 10, and are joined to the rear end portions of the left and right floor rear portions 14. Will be done. That is, the back panel 8 is supported by the rear ends of the left and right floor rear portions 14. The inner end portions (left and right opening side edge portions) 42 of the

back panels

8a and 8b in the vehicle width direction extend continuously upward from the rear end portions of the left and right aisle side plate portions 16 of the floor panel 10, and the vehicle width of the doorway 9 Partition both sides of the direction.

A notch 45 is formed in a notch shape from below at the center of the roof rear plate 6b of the roof panel 6 in the vehicle width direction. The notch 45 partitions the upper region of the doorway 9 above the back panel 8. That is, the notch 45 of the roof rear plate portion 6b extends in the vertical direction on both sides of the vehicle width direction of the entrance / exit 9, and the left and right notch side edges (left and right opening side edges) 43 for partitioning the entrance / exit 9 and the entrance / exit 9 It has a notch upper edge portion (opening upper edge portion) 44 extending above the vehicle width in the vehicle width direction to partition the entrance / exit 9. The left and right notched side edge portions 43 extend continuously upward from the inner end portions 42 in the vehicle width direction of the

back panels

8a and 8b. The notch upper edge portion 44 extends in the vehicle width direction between the upper ends of the left and right notch side edge portions 43. In FIG. 7, the roof upper plate portion 6a and the left and right roof side plate portions 6c of the roof panel 6 are not shown.

An opening reinforcing member 46 is provided around the entrance / exit 9 of the back panel 8 and the roof rear plate portion 6b. The opening reinforcing member 46 includes left and right back panel inner reinforcing members (left and right vertical reinforcing portions) 28 that reinforce the inner end portions 42 in the vehicle width direction of the

back panels

8a and 8b, and left and right notched side edges of the roof rear plate portion 6b. It has left and right roof inner reinforcing members (left and right vertical reinforcing portions) 47 for reinforcing the portion 43, and a roof upper reinforcing member (horizontal reinforcing portion) 48 for reinforcing the notched upper edge portion 44 of the roof rear plate portion 6b. The left and right back panel inner reinforcing members 28 are formed in a cross-section hat shape that opens rearward, extend vertically along the front surface of the inner end portion 42 in the vehicle width direction of the

back panels

8a and 8b, and the

back panels

8a and 8b. It is fixed to the inner end portion 42 in the vehicle width direction. The lower end side of the left and right back panel inner reinforcing members 28 is connected to the upper end side of the left and right second reinforcing members 24 via the left and right connecting members 27 extending upward from the left and right second reinforcing members 24 of the floor reinforcing member 40. To. The left and right roof inner reinforcing members 47 are formed in a cross-section hat shape that opens rearward, extend vertically along the front surface of the left and right notched side edge portions 43 of the roof rear plate portion 6b, and are left and right of the roof rear plate portion 6b. It is fixed to the notch side edge 43 of the. The lower end sides of the left and right roof inner reinforcing members 47 are connected to the upper end side of the left and right back panel inner reinforcing members 28. The roof upper reinforcing member 48 is formed in a cross-section hat shape that opens rearward, extends in the vehicle width direction along the front surface of the notched upper edge 44 of the roof rear plate 6b, and extends in the vehicle width direction. It is fixed at 44. Both ends of the roof upper reinforcing member 48 in the vehicle width direction are fixed to the upper ends of the left and right roof inner reinforcing members 47. That is, the roof upper reinforcing member 48 connects the left and right roof inner reinforcing members 47 to each other.

Left and right lateral reinforcing members (left and right connecting reinforcing members) 49 extending in the vehicle width direction are fixed between the left and right back panel inner reinforcing members 28 and the left and right side panels 7 on the front surfaces of the

back panels

8a and 8b. To. In the present embodiment, three pairs of left and right

lateral reinforcing members

49a, 49b, 49c that are vertically separated from each other are provided. The uppermost left and right lateral reinforcing members 49a of the three pairs of left and right lateral reinforcing members 49 extend in the vehicle width direction along the upper end portions 39 of the

back panels

8a and 8b to reinforce the upper end portions 39 of the

back panels

8a and 8b. To do. Of the three pairs of left and right lateral reinforcing members 49, the lowermost left and right lateral reinforcing members 49c are arranged at positions separated upward from the rear ends of the left and right floor rear portions 14 of the floor panel 10 and back panels 8a. , 8b is reinforced. The left and right lateral reinforcing members 49b in the middle of the three pairs of left and right lateral reinforcing members 49 are arranged at positions separated downward from the left and right lateral reinforcing members 49a and upwardly separated from the left and right lateral reinforcing members 49c. , The

back panels

8a and 8b are reinforced. The inner ends of the left and right

lateral reinforcing members

49a, 49b, 49c in the vehicle width direction are connected to the left and right back panel inner reinforcing members 28. The outer end portions of the left and right

lateral reinforcing members

49a, 49b, 49c in the vehicle width direction are connected to the pillars (not shown) of the rear end portions 36 of the left and right side panels 7. Left and right lateral reinforcements are provided in the area where the inner ends of the left and right lateral reinforcing members 49a in the vehicle width direction, the upper ends of the left and right back panel inner reinforcing members 28, and the lower ends of the left and right roof inner reinforcing members 47 intersect. The left and right reinforcing plates 50 for reinforcing the connecting portion between the member 49a, the left and right back panel inner reinforcing members 28, and the left and right roof inner reinforcing members 47 are fixed.

In the above configuration, the cab rear plate portion 33 (back panel 8 and roof rear plate portion 6b) for partitioning the rear of the vehicle interior 5 is provided, and the doorway 9 is formed in the cab rear plate portion 33, so that the cab rear plate portion The strength of the cab 2 can be ensured by the cab rear plate portion 33, unlike the case where the entire area behind the vehicle interior 5 is opened without providing the 33.

Further, an opening reinforcing member 46 for reinforcing the edge portion of the entrance / exit 9 (the inner end portion 42 of the

back panels

8a and 8b in the vehicle width direction and the notch portion 45 of the roof rear plate portion 6b) is fixed to the cab rear plate portion 33. Therefore, even if the doorway 9 is provided in the rear plate portion 33 of the cab, the strength of the cab 2 can be ensured by the opening reinforcing member 46.

Further, since the three pairs of left and right

lateral reinforcing members

49a, 49b, 49c are fixed to the cab rear plate portion 33, the strength of the cab 2 can be ensured by the left and right

lateral reinforcing members

49a, 49b, 49c.

Further, the inner ends of the left and right

lateral reinforcing members

49a, 49b, 49c in the vehicle width direction are connected to the left and right back panel inner reinforcing members 28, and the outer ends of the left and right

lateral reinforcing members

49a, 49b, 49c in the vehicle width direction. Is connected to the rear end portion 36 of the left and right side panels 7. Therefore, for example, when the vehicle 1 collides and the occupant restrained by the seat 17 on the left side (one side) tries to move forward due to inertia, the forward load from the occupant is applied via the seat belt. When input is made to the anchor support portion 51 of the left side panel 7 and the left side panel 7 tries to fall inward in the vehicle width direction, the load is applied from the left side panel 7 to the left

lateral reinforcing members

49a, 49b, It is transmitted to the right side panel 7 via the 49c, the opening reinforcing member 46, and the right side (other side)

lateral reinforcing members

49a, 49b, 49c. In this way, the load from the side panel 7 on one side can be efficiently transmitted to the side panel 7 on the other side, so that when the load is input to the side panel 7 in the direction of falling inward in the vehicle width direction. It is possible to prevent the concentration of stress in the cab 2 and secure the strength of the cab 2.

Further, since the floor reinforcing member 40 is fixed to the rear end portion 10c of the floor panel 10, the rigidity of the rear end portion 10c of the floor panel 10 can be ensured and the strength of the cab 2 can be ensured.

Further, the lower end sides of the left and right back panel inner reinforcing members 28 of the opening reinforcing member 46 are connected to the upper end sides of the left and right second reinforcing members 24 of the floor reinforcing member 40. Therefore, a part of the area of the opening reinforcing member 46 and the floor reinforcing member 40 (in the present embodiment, the left and right second reinforcing members 24 and the first reinforcing member 23) can surround the entire peripheral area of the doorway 9. Even if the doorway 9 is provided on the rear plate portion 33 of the cab, the strength of the cab 2 can be ensured by the opening reinforcing member 46 and the floor reinforcing member 40.

Further, since the left and right lateral reinforcing members 49a reinforce the upper end portions 39 of the

back panels

8a and 8b, even when the back panel 8 is divided into two left and right by the doorway 9 as in the present embodiment. The rigidity of the upper end portions 39 of the

back panels

8a and 8b can be ensured, and the strength of the cab 2 can be ensured.

Therefore, according to the present embodiment, the strength of the cab 2 can be ensured even if an opening (doorway 9) is provided behind the cab 2.

Further, the aisle bottom plate portion 15 of the floor panel 10 is arranged at a height position below the left and right floor rear portions 14, and passes 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. It extends to the doorway 9 of the rear surface 2a of the cab 2. Therefore, when the occupant seated on the seat 17 tries to move from the front part of the passenger compartment 5 to the rear doorway 9, the occupant moves from the floor front part 12 through the aisle bottom plate portion 15 to the rear doorway 9. be able to. In this way, the occupant does not have to move from the front part of the floor 12 to the rear part 14 of the floor across the kick-up part 13 when heading from the front part 12 of the floor to the doorway 9 behind the floor. It can be easily moved from the front to the rear doorway 9.

Further, since the aisle bottom plate portion 15 of the floor panel 10 and the left and right aisle side plate portions 16 are formed separately from the floor front portion 12, the left and right kick-up portions 13, and the left and right floor rear portions 14, the floor panel 10 is formed. Can be manufactured at low cost, unlike the case of integrally molding using a mold having a complicated shape or the like. In the present embodiment, as described above, the floor body 21 is formed by notching the kick-up portion of the floor panel of a general cab-over type vehicle and the central portion in the vehicle width direction of the rear portion of the floor, so that the floor body 21 is formed into a complicated shape. It can be manufactured at low cost by 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 aisle bottom plate portion 15 of the floor panel 10 and the left and right aisle side plate portions 16 are fixed to the floor main body 21 in a state of being unitized as one aisle unit 22, the assembly work is simplified. Can be done.

Although the notch 18 is provided in the front part 12 of the floor in the present embodiment, the notch 18 may not be provided.

Further, in the present embodiment, the opening reinforcing member 46 is a reinforcing member having a cross-sectional hat shape, but the cross-sectional shape of the opening reinforcing member 46 is not limited to this, and the edge portion of the entrance / exit 9 of the cab rear plate portion 33 is not limited to this. (In the present embodiment, if the

back panels

8a and 8b have an inner end portion 42 in the vehicle width direction and a notch portion 45 of the roof rear plate portion 6b) can be reinforced, another shape (for example, a rectangular tubular shape) can be used. There may be.

Further, in the present embodiment, the floor reinforcing member 40 is a reinforcing member having a cross-sectional hat shape, but the cross-sectional shape of the floor reinforcing member 40 is not limited to this, and the rear end portion 10c of the floor panel 10 can be reinforced. Any shape (for example, rectangular tubular shape) may be used.

Further, in the present embodiment, the upper end of the doorway 9 is arranged on the roof rear plate portion 6b of the roof panel 6, and the back panel 8 is divided into two left and right by the doorway 9, but the present invention is not limited to this. The upper end of the doorway 9 may be arranged on the back panel 8, and the back panel 8 may be formed in a gate shape surrounding the left and right sides and the upper side of the doorway 9.

Further, in the present embodiment, the cab 2 is provided with a high roof type roof panel 6 that expands the passenger compartment 5 upward, but the present invention is not limited to this, and a roof panel having a normal height is provided in the cab 2. You may. That is, in the present embodiment, the cab rear plate portion 33 that partitions the rear of the vehicle interior 5 is composed of the back panel 8 and the roof rear plate portion 6b of the roof panel 6, but the present invention is not limited to this. The cab rear plate portion 33 may be composed of only the back panel 8.

Further, in the present embodiment, the back panel 8 is provided with three pairs of left and right

lateral reinforcing members

49a, 49b, 49c, but at least one pair of left and right lateral reinforcing members 49 may be provided.

Further, in the present embodiment, the opening reinforcing member 46 is composed of a plurality of reinforcing members (left and right back panel inner reinforcing members 28, left and right roof inner reinforcing members 47, and roof upper reinforcing member 48), but the present invention is limited to this. It may be one integrally molded opening reinforcing member 46.

Further, in the present embodiment, the floor reinforcing member 40 is formed by a plurality of reinforcing members (first reinforcing member 23, left and right second reinforcing members 24, left and right third reinforcing members 25, and left and right fourth reinforcing members 26). Although it is configured, the present invention is not limited to this, and one floor reinforcing member 40 integrally molded may be used.

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

Although the present disclosure has been described above based on the above-described embodiment, the present disclosure is not limited to the contents of the above-described embodiment, and of course, it can be changed as appropriate without departing from the present disclosure. That is, it goes without saying that all other embodiments, examples, operational techniques, and the like made by those skilled in the art based on this embodiment are included in the scope of the present disclosure.

This application is based on a Japanese patent application (Japanese Patent Application No. 2019-177039) filed on September 27, 2019, the contents of which are incorporated herein by reference.

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

1: Vehicle 2: Cab 5: Cabin 6: Roof panel 6b: Roof rear plate (roof back panel)
7: Left and

right side panels

8, 8a, 8b: Back panel 9: Doorway (opening)
10: Floor panel 10c: Rear end of floor panel (rear end of floor)
12: Floor front part 13: Left and right kick-up parts 14: Left and right floor rear parts 15: Aisle bottom plate part 16: Left and right aisle side plate parts 23: First reinforcing member (passage bottom plate reinforcing part)
24: Left and right second reinforcing members (left and right passage side plate reinforcements)
25: Left and right third reinforcing members (left and right floor rear reinforcing parts)
26: Left and right fourth reinforcing members (left and right floor rear reinforcements)
28: Left and right back panel inner reinforcement members (left and right vertical reinforcement)
33: Cab rear plate portion 40: Floor reinforcing member 42: Inner end portion of the back panel in the vehicle width direction (left and right opening side edges)
43: Left and right notched side edges of the roof rear plate (left and right opening side edges)
44: Notched upper edge of roof rear plate (upper edge of opening)
46: Opening reinforcement member 47: Left and right roof inner reinforcement members (left and right vertical reinforcement parts)
48: Roof upper reinforcement member (horizontal reinforcement)
49: Left and right lateral reinforcement members (left and right connection reinforcement members)

Claims

Left and right side panels that stand on both sides of the passenger compartment in the width direction,
The floor panel that divides the lower part of the passenger compartment and
A cab rear plate that is formed in a notch shape from the lower end side upward and has an opening that allows the passenger compartment to be opened rearward, and stands up along the rear end of the floor of the floor panel to partition the rear of the passenger compartment. Department and
Of the rear plate portion of the cab, the left and right vertical reinforcing portions extending in the vertical direction along the left and right side edge portions of the opening and fixed to the left and right opening side edge portions, and the rear plate portion of the cab. Among them, an opening reinforcing member having an opening reinforcing portion extending in the vehicle width direction along the opening upper edge portion of the opening and having a horizontal reinforcing portion fixed to the opening upper edge portion and connecting the left and right vertical reinforcing portions to each other.
It is arranged above the lower end of the cab rear plate portion, extends from the left and right vertical reinforcing portions of the opening reinforcing member to the left and right side panels on the outer side in the vehicle width direction, and is fixed to the cab rear plate portion. A vehicle cab structure including left and right connecting reinforcing members that reinforce the rear plate portion of the cab.
The vehicle cab structure according to claim 1.
A floor reinforcing member which is fixed to the rear end of the floor and reinforces the rear end of the floor in the vehicle width direction is provided.
The lower end side of the left and right vertical reinforcing portions of the opening reinforcing member is a vehicle cab structure connected to the floor reinforcing member.
The vehicle cab structure according to claim 1 or 2.
A high roof type roof panel having a roof back panel that constitutes an area above a predetermined height position of the cab rear plate portion and expanding the passenger compartment upward.
A back panel that constitutes a region below the predetermined height position of the cab rear plate portion and has an outer end portion in the vehicle width direction connected to the rear end portions of the left and right side panels is provided.
The left and right connecting reinforcing members extend in the vehicle width direction along the upper end portion of the back panel to reinforce the upper end portion of the back panel in a vehicle cab structure.
The vehicle cab structure according to claim 2 or 3.
The floor panel includes a floor front portion extending rearward from the lower part of the front end of the passenger compartment, left and right kick-up portions extending upward from the rear portion of the floor front portion in a state of being separated from each other to the left and right, and the floor front portion. The left and right floor rear parts that are arranged rearward and upward and are separated from each other to the left and right and extend rearward from the upper part of the left and right kick-up parts, and the floors that are arranged at a height position below the left and right floor rear parts. The left and right kick-up portions stand up along the left and right aisle bottom plate portions extending rearward from the rear portion of the front portion to the left and right kick-up portions and between the left and right floor rear portions, and the left and right edge portions of the aisle bottom plate portion. It also has left and right aisle side plate portions that block between the left and right floor rear portions and the aisle bottom plate portion.
The floor reinforcing members include left and right floor rear reinforcing portions extending in the vehicle width direction along the rear ends of the left and right floor rear portions and fixed to the left and right floor rear portions, and vehicles of the left and right floor rear reinforcing portions. The left and right aisle side plate reinforcing portions extending downward from the inner end portion in the width direction along the outer surface of the rear end portion of the left and right aisle side plate portions in the vehicle width direction and fixed to the left and right aisle side plate portions, and the aisle bottom plate. It has a passage bottom plate reinforcing portion that extends in the vehicle width direction along the lower surface of the rear end portion of the portion, is fixed to the passage bottom plate portion, and connects the lower ends of the left and right passage side plate reinforcing portions.
The lower end of the cab rear plate portion is supported by the rear end portions of the left and right floor rear portions.
The rear end portion of the passage bottom plate portion constitutes the lower part of the opening.
The lower end side of the left and right vertical reinforcing portions of the opening reinforcing member is a vehicle cab structure connected to the upper end side of the left and right aisle side plate reinforcing portions of the floor reinforcing member.