Vehicle

By integrating the rear panel with the roof and side panels, the vehicle effectively supports the load from seat belts during collisions, preventing side panel deformation and enhancing structural rigidity.

JP2025084246AActive Publication Date: 2025-06-03ISUZU MOTORS LTD
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Patent Information

Application Number
JP2023197998
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-22
Publication Date
2025-06-03
Estimated Expiration
2043-11-22

AI Technical Summary

Technical Problem

In high-roof vehicles, the large opening behind the cab makes it difficult for the rear panel to appropriately support the load acting on the support portion of the side panel via the seat belt during collisions.

Method used

The vehicle design incorporates a rear panel that extends to the upper plate portion of the roof and is connected to both side panels, forming a reinforcing structure that can effectively support the load acting on the side panel support portion.

Benefits of technology

This design allows for appropriate load support, preventing deformation of the side panels and enhancing the overall structural rigidity of the vehicle.

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Abstract

To properly support a load acting on a support portion of a side panel.SOLUTION: A vehicle 1 includes: a cab opening 24 formed from a lower-end side to an upper-end side of a cabin 21, on a central side of a back surface of the cabin 21; and a support portion provided on side panels 50, 52 and supporting a seat belt. The cab 20 has rear panels 70, 72 positioned on a back side of the cabin 21 and connected to the side panels 50, 52. The rear panels 70, 72 extend to an upper-plate portion 62 of a roof 22.SELECTED DRAWING: Figure 3
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Description

Technical Field

[0001] The present invention relates to a vehicle having a cab.

Background Art

[0002] In the high-roof vehicle of Patent Document 1 below, an opening is provided behind the cab so that the occupant can move back and forth between the cab and the cargo compartment. In order to form the above opening, a structure is adopted in which the rear panel of the cab partitioning the rear of the cab and the rear plate portion of the roof are connected.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, a support portion for supporting a seat belt that restrains an occupant is provided at the upper end portion of the side panel of the cab. For example, when the vehicle collides with another vehicle, a large load acts on the support portion via the seat belt. When a large load acts on the support portion, the side panel may be deformed by the load. Although it is conceivable to support the above load with a rear panel connected to the side panel, in the vehicle of Patent Document 1, since a large opening is formed in the rear panel, it is difficult for the rear panel or the like to appropriately support the load.

[0005] Therefore, the present invention has been made in view of these points, and an object thereof is to appropriately support the load acting on the support portion of the side panel.

Means for Solving the Problems

[0006] In one aspect of the present invention, there is provided a vehicle including a cab having a pair of side panels located on both sides in the vehicle width direction of a passenger compartment, a roof forming the ceiling of the passenger compartment, an opening formed from the lower end side to the upper end side at the center side of the rear surface of the passenger compartment, and a support portion provided on the side panel and supporting a seat belt. The cab has a rear panel located on the rear side of the passenger compartment and connected to the side panel, and the rear panel extends to the upper plate portion of the roof.

[0007] Further, the upper end of the rear panel may be connected to the upper plate portion. Further, the rear panel is a first rear panel connected to the left side panel among the pair of side panels and a second rear panel connected to the right side panel, and the first rear panel and the second rear panel may be located on both sides of the opening.

[0008] Further, the length of the first rear panel and the second rear panel in the vehicle width direction may be smaller than the length of the opening in the vehicle width direction.

[0009] Further, the roof further has a pair of side plate portions extending downward from both end edges of the upper plate portion in the vehicle width direction, the first rear panel is connected to one of the side plate portions, and the second rear panel may be connected to the other of the side plate portions.

[0010] Further, the cab may further have a floor panel partitioning the lower part of the passenger compartment, and the rear panel may be connected to the floor panel.

[0011] Further, a reinforcing portion bent in the vehicle width direction may be formed from the lower end portion to the upper end portion in the vertical direction of the rear panel.

Advantages of the Invention

[0012] According to the present invention, there is an effect that the load acting on the support portion of the side panel can be appropriately supported.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Mode for Carrying Out the Invention

[0014] <Configuration of the Vehicle> FIG. 1 is a schematic diagram for explaining the internal configuration of the vehicle 1. The vehicle 1 is a truck with a frame structure here. As shown in FIG. 1, the vehicle 1 has a cab 20, a loading platform 30, and a connecting portion 40. The vehicle 1 is a vehicle in which an occupant can walk through between the cab 20 and the loading platform 30 via the connecting portion 40.

[0015] The cab 20 and the loading platform 30 are mounted on the vehicle body frame of the vehicle 1. The vehicle body frame includes a pair of side frames extending in the front-rear direction of the vehicle 1 and cross members provided between the side frames. A drive source for driving the vehicle 1 is attached to the front portion of the vehicle body frame.

[0016] The cab 20 forms a substantially box-shaped body joined by a plurality of panels. Inside the cab 20, a passenger compartment 21 for a driver or the like to sit in is formed. The roof 22 (see FIG. 2) above the cab 20 forms the ceiling of the passenger compartment and is a high roof here. The cab 20 is located above the drive source. On the rear surface 23 side of the cab 20, a cab opening 24 is formed so that a passenger can walk through. The cab opening 24 is formed from the lower end side to the upper end side of the center side of the rear surface of the passenger compartment (see FIG. 3). The detailed configuration of the cab 20 will be described later.

[0017] The cargo bed 30 is located behind the cab 20. The cargo bed 30 is formed in a box shape, and a space for storing luggage is formed inside. On the front surface 32 (the opposing surface facing the rear surface 23 of the cab 20) of the cargo bed 30, a cargo bed opening 34 is formed so that a passenger can walk through.

[0018] The connecting portion 40 connects the cab 20 and the cargo bed 30. A passage 42 is formed in the connecting portion 40 so that a passenger or the like can walk through between the cab 20 and the cargo bed 30. The passage 42 is a passage between the cab opening 24 and the cargo bed opening 34. Note that a roof member that covers the passage 42 and is connected to the cab 20 and the cargo bed 30 is provided in the connecting portion 40.

[0019] <Configuration of the Cab> With reference to FIGS. 2 to 4, the detailed configuration of the cab 20 will be described. FIG. 2 is a perspective view of the cab 20 seen from the front side. FIG. 3 is a perspective view of the cab 20 seen from the rear side. FIG. 4 is a schematic view showing the rear surface of the cab 20.

[0020] As shown in FIG. 2, the cab 20 has a pair of side panels 50, 52, a front panel 54, a floor panel 56, a roof panel 60, and a pair of rear panels 70, 72. Each panel is made of a high-strength material such as a steel plate, for example, and is formed by press molding. Also, the panels are joined to each other by welding, for example.

[0021] A pair of side panels 50 and 52 are respectively provided on both sides in the vehicle width direction (Y direction in FIG. 1) of the cab 20, and form the left and right side surfaces of the passenger compartment 21. That is, the side panel 50 is the left side panel, and the side panel 52 is the right side panel. The pair of side panels 50 and 52 are joined to the roof panel 60. The pair of side panels 50 and 52 are provided with support portions 82 for supporting a seat belt 80 that restrains a passenger.

[0022] As shown in FIG. 2, the seat belt 80 is formed in a belt shape and is obliquely hung from the shoulder to the waist of the passenger sitting in the passenger compartment 21. One end side in the longitudinal direction of the seat belt 80 is connected to a retractor, and the other end side in the longitudinal direction of the seat belt 80 can be connected to a buckle via a tongue.

[0023] As shown in FIG. 2, the support portion 82 is provided at the upper end portions of the side panels 50 and 52. The support portion 82 is a shoulder anchor provided so as to be located in the vicinity of the shoulder of the passenger here. The support portion 82 folds back the seat belt pulled out from the retractor toward the buckle and changes the direction.

[0024] By the way, for example, when the vehicle 1 collides with another vehicle, a large load acts on the support portion 82 via the seat belt 80 due to the passenger diving forward. And when a large load acts on the support portion 82, there is a possibility that the side panels 50 and 52 are deformed by the load. For example, when the vehicle 1 collides with another vehicle, when a load acts on the support portion 82 provided on the side panel 52 on the driver's seat side, the side panel 52 is deformed so as to fall by the load. On the other hand, in the present embodiment, although details will be described later, the rear panels 70 and 72 are configured to be able to support the load.

[0025] The front panel 54 forms the front surface of the passenger compartment 21. The front panel 54 is joined to the pair of side panels 50 and 52.

[0026] The floor panel 56 is a panel that partitions the lower part of the passenger compartment 21 and forms the floor surface of the passenger compartment 21. The floor panel 56 is joined to a pair of side panels 50, 52, a front panel 54, and a rear panel 70. In the vehicle, a drive source is provided below the floor panel 56.

[0027] The roof panel 60 forms the roof 22 of the cab 20. The roof panel 60 is a high roof that raises the ceiling and widens the passenger compartment. As shown in FIG. 2, the roof panel 60 has an upper plate portion 62 and side plate portions 64, 65.

[0028] The upper plate portion 62 forms the top surface and the front surface of the roof 22. The lower end side of the upper plate portion 62 is joined to the front panel 54. The upper end side of the upper plate portion 62 is joined to the rear panels 70, 72.

[0029] The side plate portions 64, 65 form the left and right side surfaces of the roof 22. The side plate portions 64, 65 are joined to the upper plate portion 62. The side plate portions 64, 65 extend downward from both end edges in the vehicle width direction of the upper plate portion 62. Further, the side plate portion 64 is joined to the side panel 50, and the side plate portion 65 is joined to the side panel 52.

[0030] A pair of rear panels 70, 72 are located on the rear side of the passenger compartment 21. The rear panels 70, 72 are connected to a pair of side panels 50, 52 and the floor panel 56, as shown in FIG. 3 of the roof panel 60. Specifically, the rear panels 70, 72 are joined to the roof panel 60, the side panels 50, 52, and the floor panel 56 by welding.

[0031] The rear panels 70, 72 extend up to the upper plate portion 62 of the roof 22. Specifically, the upper ends of the rear panels 70, 72 are connected to the upper plate portion 62. For this reason, the rear panels 70, 72 have the function as the rear panel of the cab 20 and the function as the rear plate portion of the roof 22. In other words, the rear panel of the cab 20 and the rear plate portion of the roof 22 are integrated.

[0032] The rear panel 70 is the first rear panel connected to the side panel 50 which is the left side panel, and the rear panel 72 is the second rear panel connected to the side panel 52 which is the right side panel. Specifically, as shown in FIG. 3, the lower half of the rear panel 70 is joined to the side panel 50, and the lower half of the rear panel 72 is joined to the side panel 52.

[0033] As shown in FIG. 3, the rear panels 70 and 72 are located on both sides of the cab opening 24. That is, the rear panel 70 is located on the left side when viewed from the cab opening 24, and the rear panel 72 is located on the right side when viewed from the cab opening 24.

[0034] The length of the rear panels 70 and 72 in the vehicle width direction is smaller than the length of the cab opening 24 in the vehicle width direction. Specifically, the length of the rear panels 70 and 72 in the vehicle width direction is smaller than 1 / 2 of the length of the cab opening 24 in the vehicle width direction. As a result, a cab opening 24 with a large area can be formed, making it easier for the occupant to walk through the cab opening 24.

[0035] The rear panel 70 is connected to the side plate portion 64 of the roof panel 60, and the rear panel 72 is connected to the side plate portion 65. Specifically, the end portion in the short side direction in the upper half of the rear panel 70 is joined to the side plate portion 64, and the end portion in the short side direction in the upper half of the rear panel 72 is joined to the side plate portion 65.

[0036] As described above, the rear panels 70 and 72 integrate the rear panel of the cab 20 and the rear plate portion of the roof 22, making it easier to transmit the load acting on the support portion 82 of the seat belt 80 to other panels of the cab 20 including the rear panels 70 and 72. In addition, the rigidity of the rear panels 70 and 72 can be increased compared to the case where the rear panel on the rear side and the rear plate portion of the roof 22 are separated, making it easier for the rear panels 70 and 72 to support the load acting on the support portion 82 of the seat belt 80. As a result, it is possible to suppress the side panels 50 and 52 from deforming and falling due to the load acting on the support portion 82.

[0037] When the panel on the rear side of the cab 20 and the rear plate portion of the roof 22 are separated, it is necessary to reinforce the connecting portion between the panel and the rear plate portion with a reinforcing member, and it is also necessary to provide a sealing member at the connecting portion between the panel and the rear plate portion to prevent water intrusion and the like. On the other hand, when integrated like the rear panels 70 and 72 of the present embodiment, there is no need to provide a reinforcing member and a sealing member, and the number of parts can be reduced.

[0038] In the present embodiment, since a large cab opening 24 is provided at the center of the cab 20, the space for installing the rear panels 70 and 72 is reduced. However, since the rear panels 70 and 72 extend up to the roof 22, it is easy to increase the rigidity of the rear panels 70 and 72. For this reason, in the cab 20 provided with the cab opening 24, the effect is effectively exhibited.

[0039] Reinforcing portions 85 are formed in the rear panels 70 and 72 from the lower end portion to the upper end portion in the vertical direction. The reinforcing portion 85 is formed in the portion surrounded by the broken line region R in FIG. 4. FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 and is a schematic diagram for explaining the configuration of the reinforcing portion 85. As shown in FIG. 5, the reinforcing portion 85 has a configuration bent in the vehicle width direction. The reinforcing portion 85 is formed, for example, by performing bead processing on the rear panels 70 and 72 which are sheet metals. By providing the reinforcing portion 85 having such a shape from the lower end portion to the upper end portion in the vertical direction, the rigidity of the rear panels 70 and 72 is further increased. As a result, it is possible to further suppress the deformation of the side panels 50 and 52 due to the load acting on the support portion 82.

[0040] <Effects in the present embodiment> The vehicle 1 of the present embodiment described above has a roof 22 that forms the ceiling of the passenger compartment 21 and a cab opening 24 formed from the lower end side to the upper end side of the passenger compartment 21 on the center side of the rear surface of the passenger compartment 21. Further, the cab 20 has rear panels 70 and 72 that are located on the rear side of the passenger compartment 21 and are connected to the side panels 50 and 52. And the rear panels 70 and 72 extend up to the upper plate portion 62 of the roof 22. As a result, the rear panel of the cab 20 and the rear plate portion of the roof 22 are integrated, and the load acting on the support portion 82 of the seat belt 80 is easily transmitted to the frame of the cab 20 via the rear panels 70 and 72. Further, the rigidity of the rear panels 70 and 72 can be increased as compared with the case where the rear panel and the rear plate portion of the roof 22 are separated, so that the rear panels 70 and 72 can easily support the load acting on the support portion 82 of the seat belt 80. As a result, it is possible to suppress the side panels 50 and 52 from being deformed so as to fall due to the load acting on the support portion 82.

[0041] As described above, the present invention has been described using the embodiments. However, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist thereof. For example, all or part of the device can be configured by being functionally or physically dispersed and integrated in an arbitrary unit. Further, new embodiments generated by any combination of a plurality of embodiments are also included in the embodiments of the present invention. The effects of the new embodiments generated by the combination have the effects of the original embodiments combined.

Description of Reference Numerals

[0042] 1 Vehicle 20 Cab 21 Passenger Compartment 22 Roof 24 Cab Opening 50, 52 Side Panels 56 Floor Panel 62 Upper Plate Portion 64, 65 Side Plate Portions 70, 72 Rear Panels 75 Reinforcement Portion 80 Seat Belt 82 Support Portion

Claims

1. A cab having a pair of side panels located on both sides in the vehicle width direction of the passenger compartment, a roof forming the ceiling of the passenger compartment, an opening formed from the lower end side to the upper end side at the center side of the rear surface of the passenger compartment, a support portion provided on the side panel and supporting a seat belt, comprising: The cab has a rear panel located on the rear side of the passenger compartment and connected to the side panel, The rear panel extends to the upper plate portion of the roof, A vehicle.

2. The upper end of the rear panel is connected to the upper plate portion, The vehicle according to claim 1.

3. The rear panel is a first rear panel connected to the left side panel among the pair of side panels and a second rear panel connected to the right side panel, The first rear panel and the second rear panel are located on both sides of the opening, The vehicle according to claim 1.

4. The lengths of the first rear panel and the second rear panel in the vehicle width direction are smaller than the length of the opening in the vehicle width direction, The vehicle according to claim 3.

5. The roof further has a pair of side plate portions extending downward from both end edges of the upper plate portion in the vehicle width direction, The first rear panel is connected to one of the side plate portions, and the second rear panel is connected to the other of the side plate portions, The vehicle according to claim 3.

6. The cab further has a floor panel partitioning the lower part of the passenger compartment, The rear panel is connected to the floor panel, The vehicle according to claim 1.

7. A reinforcing portion bent in the vehicle width direction is formed from the lower end portion to the upper end portion in the vertical direction of the rear panel, The vehicle according to claim 1.

Citation Information

Patent Citations

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    JP2021054541A