Mounting structure of the detection device

Abstract

To secure the mountability of a detection device for detecting an object present at a side of a vehicle, in a mounting structure of the detection device.SOLUTION: A mounting structure for a detection device includes: a mud guard 20 attached to a vehicle body frame 10 of a vehicle 2, disposed behind a wheel of the vehicle 2, including an outer-surface portion 20A on an outer side in a vehicle width direction and a rear-surface portion 20B disposed on a rear side in a vehicle length direction and connected to the outer-surface portion 20A, the outer-surface portion 20A being provided with an opening 24; a detection device 1 provided to detect an object on a side of the vehicle 2 and disposed in the opening 24 of the mudguard 20; and bracket 30 located ahead of the rear-surface portion 20B, disposed so as to overlap the outer-side surface portion 20A as viewed from outside in the vehicle width direction, having one end attached to the vehicle body frame and the other end to which the detection device 1 is attached, and supporting in a cantilever manner the detection device 1 in a state of being disposed in the opening 24.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This invention relates to an attachment structure of a detection device for detecting an object existing on the side of a vehicle.

Background Art

[0002] Conventionally, technologies have been developed to detect objects such as people and vehicles existing on the side of a vehicle and to issue warnings to the driver or perform vehicle control. For example, Patent Document 1 discloses an attachment structure in which a radar device for detecting an object such as a person or a vehicle existing on the side of a vehicle is attached near a fuel tank on the side of a truck body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When a radar device is attached near a fuel tank as in the technology of Patent Document 1, there may be a case where the radar irradiation range by the radar device cannot be sufficiently secured. That is, due to the amendment of the regulation for vehicle side monitoring, it is necessary to monitor a wider range of the side than before. When a radar device is attached near a fuel tank as in the technology of Patent Document 1, there may be a case where it cannot meet the regulation.

[0005] That is, in a detection device for detecting an object existing on the side of a vehicle, in order to monitor the side of the vehicle in a wider range, it is necessary to change the mounting position of the detection device. However, due to the relationship with the layout of other parts on the side of the vehicle, the mounting position of the detection device may be restricted. Therefore, the conventional technology disclosed in Patent Document 1 has room for improvement in ensuring the mountability of the detection device. This invention was conceived in light of the above-mentioned issues, and one of its objectives is to ensure the mountability of a detection device in the mounting structure for a detection device that detects objects located to the side of a vehicle. [Means for solving the problem]

[0006] This project was undertaken to solve at least some of the above-mentioned problems and can be implemented in the following forms or applications.

[0007] (1) The mounting structure of the detection device according to this application example comprises a mudguard that is attached to the vehicle body frame and positioned behind the wheels of the vehicle, having an outer surface portion that forms an outer wall surface in the vehicle width direction and a rear surface portion that is connected to the outer surface portion and forms a rear wall surface in the vehicle length direction, and having an opening in the outer surface portion that connects the outer surface in the vehicle width direction and the inner surface in the vehicle width direction; a detection device provided for detecting objects to the side of the vehicle and positioned in the opening of the mudguard; and a bracket positioned in front of the rear surface portion and overlapping the outer surface portion when viewed from the outer surface in the vehicle width direction, with one end directly or indirectly attached to the vehicle body frame and the other end to which the detection device is attached, and cantilevering the detection device when it is positioned in the opening.

[0008] According to this design, the bracket is positioned in front of the rear surface of the mudguard and overlaps the outer surface when viewed from the outside in the vehicle width direction, and the detection device is cantilevered and supported in an opening on the outer surface. In other words, because the bracket is positioned inside the mudguard, it becomes possible to attach the detection device to the mudguard. Even with this structure in which the bracket is positioned inside the mudguard, the detection device can emit radar outwards from the opening on the outer surface. Therefore, it is possible to properly attach the detection device to the mudguard. Thus, the mounting structure of the detection device ensures the mountability of the detection device.

[0009] (2) The mounting structure of the detection device according to this application example may further include a rear side stay that is positioned behind the rear surface of the mudguard in the vehicle length direction and fixed to the rear surface, and an auxiliary bracket that is attached to the bracket at one end in the vehicle length direction and attached to the rear side stay at the other end in the vehicle length direction, and connects the bracket and the rear side stay. According to this design, the auxiliary bracket is interposed between the bracket and the rear portion of the mudguard along the vehicle's length, so that the bracket and the rear stay are connected via the auxiliary bracket. Therefore, the auxiliary bracket supports the bracket in a way that suppresses the effects of external forces along the vehicle's length. Thus, the bracket is reinforced. As a result, vibrations to the detection device are suppressed.

[0010] (3) In addition, in the mounting structure of the detection device according to this application example, the bracket may be provided in a non-contact manner with respect to the opening when the detection device is positioned in the opening. This prevents friction between the bracket and the mudguard. Furthermore, since vibrations are less likely to be transmitted from the mudguard to the bracket, vibrations to the detection device are suppressed. (4) In addition, in the mounting structure of the detection device according to this application example, the wiring of the detection device may be arranged along the rear surface of the bracket in the direction of the vehicle length. In this case, the bracket can function as a protective member to prevent collisions with flying stones or the like from the front of the vehicle while it is in motion.

[0011] (5) Furthermore, the mounting structure of the detection device according to this application example includes a rear stay that is positioned rearward in the vehicle length direction from the rear surface of the mudguard and fixed to the rear surface, an upper stay that is fixed to the upper surface that forms the upper wall surface of the mudguard, and a front stay that is fixed to the front end of the mudguard in the vehicle length direction, wherein the bracket is positioned forward in the vehicle length direction from the rear stay and rearward in the vehicle length direction from the front stay, and is positioned below the upper stay. According to this design, the bracket is positioned further forward in the vehicle length direction than the rear stay and further back in the vehicle length direction than the front stay, and below the upper stay. Therefore, the bracket can be positioned inside the mudguard without interfering with the stays that support the mudguard.

[0012] (6) In addition, in the mounting structure of the detection device according to this application example, the upper stay is positioned in front of the rear stay in the vehicle length direction and rear of the front end stay in the vehicle length direction, and the bracket may be indirectly attached to the vehicle body frame via the upper stay. According to this design, the bracket can be positioned inside the mudguard without interfering with the stays that support the mudguard, and the racket can be stably attached to the vehicle frame via the upper stays. [Effects of the Invention]

[0013] According to this invention, the mounting structure for a detection device for detecting an object located to the side of a vehicle can ensure the mounting of the detection device. [Brief explanation of the drawing]

[0014] [Figure 1] This is a perspective view of the front of a vehicle to which the mounting structure of the detection device according to this application example is applied, viewed from the left rear. [Figure 2] This is a perspective view showing the mudguards removed from Figure 1. [Figure 3] This is a side view showing an enlarged view of the mounting structure of the detection device in Figure 1. [Figure 4] Figure 1 is a rear view of the mounting structure of the detection device, seen from the rear in the direction of the vehicle's length. [Figure 5] This is a side view showing an enlarged portion of the mounting structure of the detection device in Figure 1. [Figure 6] Figure 1 is an enlarged perspective view of the detection device, with the other end of the BSA bracket viewed from inside the mudguard. [Modes for carrying out the invention]

[0015] Referring to the drawings, embodiments of the present case will be described. The following embodiments are merely examples, and there is no intention to exclude various modifications and applications of technologies not explicitly stated in these embodiments. Each configuration of the following embodiments can be implemented with various modifications within the scope not departing from their gist. Also, they can be selectively adopted as necessary, or appropriately combined. In each figure, "FR" indicates the front of the vehicle, "UP" indicates "upward", and "IN" indicates the inner side in the vehicle width direction. The opposite side of the inner side in the vehicle width direction is the outer side in the vehicle width direction. Also, 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 facing the front of the vehicle.

[0016] [1. Configuration] FIG. 1 is a perspective view of the front part of a vehicle 2 to which the mounting structure of a detection device 1 (shown by a broken line in FIG. 1) according to this application example is applied, viewed from the left rear, with some parts omitted. The mounting structure of the detection device 1 is provided on the left and right of the vehicle 2 and has a substantially similar (symmetrical) configuration on the left and right. Therefore, in the following, the left side will be described, and the detailed description of the right side will be omitted. The detection device 1 is a vehicle side monitoring that detects objects such as people and other vehicles existing on the side of the vehicle 2. The detection signal of the detection device 1 is used in a BSA (Blind Spot Assist) device for generating an alarm to the driver when detecting people and other vehicles existing on the side of the vehicle 2. As an example of the detection device 1, for example, a millimeter-wave radar that transmits millimeter waves toward the irradiation range on the side of the vehicle 2 can be mentioned.

[0017] The vehicle 2 in FIG. 1 is a truck including a vehicle body frame 10 and a cab (not shown) disposed above the front part of the vehicle body frame 10. The vehicle body frame 10 has a ladder frame structure. Specifically, the vehicle body frame 10 has a pair of side rails 11 (only one of the left side in the figure is shown) extending in the vehicle length direction (front-rear direction) and spaced apart from each other in the vehicle width direction (left-right direction), and a plurality of cross members (not shown), forming a ladder shape. At the front of the vehicle body frame 10, a cab bridge 12 is provided to support the rear end of the cab from below. The cab bridge 12 extends upward from each of the pair of side rails 11 and is fixed across the side rails 11, forming an inverted U shape or an arch shape.

[0018] A mudguard 20 is provided on the outside (outer side in the vehicle width direction) of the vehicle body frame 10. The mudguard 20 is a mud removal member disposed behind the front wheels (not shown) of the vehicle 2. This mudguard 20 is configured as a cover body that surrounds three sides: the outer surface, the rear surface, and the upper surface. Specifically, the mudguard 20 includes an outer side portion 20A that forms a wall surface on the outer side in the vehicle width direction, a rear side portion 20B that is continuously provided at the rear end of the outer side portion 20A and forms a wall surface in the rear direction in the vehicle length direction, and an upper surface portion 20C that is continuously provided at the upper ends of the outer side portion 20A and the rear side portion 20B and forms an upper wall surface. In this specification, the space side surrounded by the outer side portion 20A, the rear side portion 20B, and the upper surface portion 20C is referred to as "the inside of the mudguard 20".

[0019] An opening 24 is penetratingly provided along the vehicle width direction in the outer side portion 20A. The opening 24 is a window portion that communicates the outer side and the inner side in the vehicle width direction, and is provided to project (insert) an outer cover 32, which will be described later, to the outside of the mudguard 20. That is, the opening 24 is provided in the outer side portion 20A located in front of the rear side portion 20B of the mudguard 20, and the detection device 1 is engaged with the opening 24. The size and shape of the opening 24 are set according to the external shape and size of the detection device 1.

[0020] FIG. 2 shows a state in which the mudguard 20 is removed from FIG. 1. As shown in FIGS. 1 and 2, the mudguard 20 is fixed to the vehicle body frame 10 at three locations: the rear side portion 20B, the upper surface portion 20C, and the front end portion 20D (the front end portion of the upper surface portion 20C) of the mudguard 20 by a rear side stay 21, an upper surface side stay 22, and a front end side stay 23. Of the rear stay 21, upper stay 22, and front stay 23, the rear stay 21 and upper stay 22 are fixed to an upper bracket 12A that extends outward from the cab bridge 12 above the mudguard 20 (above the side rail 11). The front stay 23 is fixed to the outer surface of the side rail 11.

[0021] The rear stay 21 is formed from an L-shaped pipe member and is positioned behind the mudguard 20. The rear stay 21 is fixed to the upper bracket 12A at its upper end, extends downward from the upper bracket 12A along the rear portion 20B, and is bent outward at the lower end of the rear portion 20B, extending outward in the vehicle width direction. The rear stay 21 is fixed to the lower end of the rear portion 20B by two support fittings 21A and 21B which are spaced apart in the vehicle width direction at the portion that extends in the vehicle width direction. As shown in Figure 1, the rear portion 20B is also fixed to the rear sub-stay 21C that protrudes outward from the lower end of the cab bridge 12.

[0022] The upper stay 22 is positioned further forward in the vehicle length direction than the rear stay 21 and further back in the vehicle length direction than the front end stay 23, and includes a first member 22A extending outward from the upper bracket 12A and a second member 22B extending forward (forward in the vehicle length direction) from the upper bracket 12A. The first member 22A of the upper stay 22 is fixed to the upper surface portion 20C of the mudguard 20 at two (multiple) points spaced apart along the vehicle width direction. The second member 22B of the upper stay 22 extends over substantially the entire length of the upper surface portion 20C in the vehicle length direction, contacts the upper surface portion 20C, and is fixed to the upper surface portion 20C at its front end.

[0023] The front end stay 23 extends outward and upward from the side rail 11, and supports the front end of the upper surface portion 20C (the upper front end of the mudguard 20) from below. The front end stay 23 and the front end of the upper surface portion 20C are fixed at two (or more) points spaced apart along the vehicle width direction.

[0024] As described above, the mudguard 20 is attached to the outside of the vehicle frame 10 by the rear stay 21, the top stay 22, and the front stay 23. In the mounting structure of the detection device 1 according to this application example, a BSA bracket 30 ("bracket", shown by a dashed line in Figure 1) for supporting the detection device 1 is positioned inside the mudguard 20.

[0025] The BSA bracket 30 (shown by the dashed line in Figure 1), positioned inside the mudguard 20, is located in front of the rear portion 20B of the mudguard 20, as shown in Figure 1, and overlaps with the outer surface portion 20A of the mudguard 20 when viewed from the outside in the vehicle width direction. In other words, as shown in Figure 2, the BSA bracket 30 is located in front of the rear stay 21 and behind the front stay 23. Furthermore, the BSA bracket 30 is located below the upper stay 22 and above the lower end of the side rail 11.

[0026] As shown in Figures 1 and 2, the BSA bracket 30 is fixed to the vehicle body frame 10 at one end 30A on the inside in the vehicle width direction, extends outward and downward from the vehicle body frame 10 side (inside in the vehicle width direction), and the detection device 1 is attached to the other end 30B together with the outer cover 32. In other words, the BSA bracket 30 cantilever-supports the detection device 1 with it positioned (engaged) in the opening 24, as shown in Figure 1.

[0027] Figure 3 is an enlarged side view showing the mounting structure of the detection device 1 in Figure 1. Figure 4 is a rear view of the mounting structure of the detection device 1, viewed from the rear in the vehicle length direction. In Figure 3, the mudguard 20 is shown with a dashed line. In Figure 4, a portion of the mudguard 20 is shown with a dashed line, and a portion of the mounting structure of the detection device 1 is omitted. As shown in Figures 3 and 4, the BSA bracket 30 is formed by bending a flat plate member having surfaces that extend in both the vehicle width direction and the vertical direction. Specifically, as shown in Figure 3, when viewed along the vehicle width direction, the BSA bracket 30 has a "V" shape in which an inclined portion located further rearward in the vehicle length direction is connected to a portion extending in the vertical direction as it moves downward. Also, as shown in Figure 4, when viewed along the vehicle length direction, the BSA bracket 30 is formed in a "C" shape in which a portion extending in the vertical direction is connected to a portion located further outward in the vehicle width direction as it moves downward to a portion extending outward in the vehicle width direction.

[0028] One end 30A of the BSA bracket 30 is fixed to the upper stay 22 together with the upper surface portion 20C of the mudguard 20. Figure 5 is an enlarged view of the fixing point between the BSA bracket 30 and the mudguard 20 and the upper stay 22. As shown in Figure 3, with the first member 22A of the upper stay 22 superimposed on the upper surface portion 20C of the mudguard 20, the support bracket 26 positioned on the upper surface of the first member 22A and one end 30A of the BSA bracket 30 positioned on the lower side of the upper surface portion 20C of the mudguard 20 are fastened together with screws. This fixes (fastens together) one end 30A of the BSA bracket 30, the upper stay 22, and the upper surface portion 20C of the mudguard 20. Therefore, in this embodiment, the BSA bracket 30 is indirectly attached to the vehicle frame 10 via the upper stay 22 and the upper surface portion 20C of the mudguard 20.

[0029] Figure 6 is an enlarged perspective view of the other end 30B of the BSA bracket 30, seen from the inside of the mudguard 20. Note that the mudguard 20 is omitted in Figure 6. As shown in Figure 6, the other end 30B of the BSA bracket 30 forms a surface that extends along the vehicle width direction and the vertical direction. A holder 31 for holding the detection device 1 is provided on this other end 30B, an outer cover 32 that covers the holder 31 from the outside, and a protective cover 33 (shown by a dashed line in the figure) that covers the detection device 1 held in the holder 31 from the inside.

[0030] The holder 31 is formed in an L-shape when viewed from above and includes a first surface portion 31A that forms a fixing surface for the other end 30B and a second surface portion 31B that forms a holding surface for the detection device 1. The first surface portion 31A is a surface portion that extends along the vehicle width direction and the vertical direction, similar to the other end 30B. The second surface portion 31B is connected to the outer end of the first surface portion 31A in the vehicle width direction and extends forward from the first surface portion 31A. The second surface portion 31B is provided with a window portion 31C that communicates from the inside to the outside in the vehicle width direction, and the detection device 1 is held in this window portion 31C.

[0031] The outer cover 32 is an exterior cover member with a hat-shaped cross-section, and as shown in Figure 1, it is positioned on the outside in the vehicle width direction relative to the detection device 1 (shown by a dashed line in Figure 1). The outer cover 32 is fixed to the outward-facing surface of the holder 31 and covers the detection device 1 from the outside. The outer cover 32 is made of a material and thickness that allows millimeter waves emitted from the detection device 1 to pass through. Furthermore, the outer dimensions of the outer cover 32 are set to be smaller than the diameter of the opening 24 provided in the outer surface portion 20A of the mudguard 20, so that the outer cover 32 can protrude (be inserted) from the inside to the outside of the mudguard 20 through the opening 24.

[0032] The protective cover 33 is a cover member that protects the detection device 1 held in the holder 31 from flying stones and other debris while the vehicle 2 is in motion. For example, the protective cover 33 is provided so as to cover the four sides of the holder 31 facing inward in the vehicle width direction: the inner side in the vehicle width direction, the upper side, the lower side, and the front side in the vehicle length direction. It has screw holes (not shown) for attaching it to the other end 30B of the BSA bracket 30 together with the first surface portion 31A of the holder 31.

[0033] When attaching the holder 31, outer cover 32, and protective cover 33 to the other end 30B of the BSA bracket 30, the outer cover 32 is fixed to the holder 31 with the detection device 1 attached to the holder 31. Then, the holder 31 and outer cover 32 are set on the other end 30B of the BSA bracket 30 with the opening 24 in place. The protective cover 33 is then attached to the inside of the holder 31, and the first surface 31A of the holder 31 and the protective cover 33 are fixed (fastened together) to the other end 30B of the BSA bracket 30.

[0034] With the holder 31, outer cover 32, and protective cover 33 attached to the other end 30B of the BSA bracket 30, a gap 24X is provided between the opening 24 and the outer cover 32, as shown in Figure 4. In other words, the outer dimensions of the outer cover 32 and the diameter of the opening 24 are set so that the outer cover 32 (part of the BSA bracket 30) is positioned at a distance of gap 24X from the opening 24. In other words, the BSA bracket 30 is provided in a non-contact manner with respect to the opening 24 when the detection device 1 is positioned in the opening 24. The gap 24X is set to an appropriate size that can prevent contact (interference) between the outer cover 32 (bracket 30 side) and the opening 24 (mudguard 20 side). From the viewpoint of ensuring the mudguard 20's mud-guarding performance, aerodynamic performance during driving, and the aesthetic appearance of the mudguard 20, it is preferable to set the gap 24X to the minimum size that can prevent contact (interference) without making it too wide.

[0035] In the example shown in Figure 6, the wiring 34 of the detection device 1 held in the holder 31 is routed along the rear surface of the BSA bracket 30 in the vehicle length direction. The wiring 34 is connected to a control device (not shown) and transmits the detection signal from the detection device 1. In this case, since the BSA bracket 30 is positioned in front of the wiring 34, the BSA bracket 30 also functions as a protective member to prevent flying stones or other objects from hitting the wiring 34 from the front of the vehicle 2 while it is in motion.

[0036] In the BSA bracket 30 of this application example, a rib 35 is formed as shown in Figure 3 to reinforce the BSA bracket 30 against external forces acting on the BSA bracket 30 in the longitudinal direction, and an auxiliary bracket 40 is provided as shown in Figures 2 and 3. The auxiliary bracket 40 is a support member interposed between the BSA bracket 30 and the rear portion 20B of the mudguard 20 along the vehicle length. The auxiliary bracket 40 is formed from a flat plate member having a surface extending in both the vehicle length direction and the vertical direction, from the viewpoint of suppressing external forces applied to the BSA bracket 30 in the vehicle length direction (front-rear direction).

[0037] The auxiliary bracket 40 is fixed to the BSA bracket 30 at one end 40A in the forward direction of the vehicle length. The fixing position of the auxiliary bracket 40 and the BSA bracket 30 is, for example, near the other end 30B of the BSA bracket 30, and is set to be inward in the vehicle width direction compared to the mounting position of the holder 31.

[0038] The auxiliary bracket 40 is fixed to the rear portion 20B of the mudguard 20 at its other end 40B, which is at the rear in the vehicle length direction. More specifically, the auxiliary bracket 40 is fixed (fastened together) at its other end 40B, which is at the rear in the vehicle length direction, to the rear stay 21 that fixes the rear portion 20B of the mudguard 20 via support brackets 21A and 21B. In other words, the auxiliary bracket 40 connects the BSA bracket 30 and the rear stay 21 in the vehicle length direction (front-to-back direction).

[0039] [2. Effects] The embodiment described above provides the following effects and advantages. The mounting structure of the detection device 1 in this application example includes the above-described detection device 1, a mudguard 20, and a BSA bracket 30. In this mounting structure of the detection device 1, the BSA bracket 30 is positioned in front of the rear surface portion 20B of the mudguard 20 and overlaps with the outer surface portion 20A when viewed from the outside in the vehicle width direction, and the detection device 1 is cantilevered and positioned in the opening 24 of the outer surface portion 20A. According to this, since the BSA bracket 30 is positioned inside the mudguard 20, the detection device 1 can be mounted inside the mudguard 20. Even with this structure in which the BSA bracket 30 is positioned inside the mudguard 20, the detection device 1 can emit radar outwards from the opening 24 of the outer surface portion 20A. Therefore, it is possible to properly mount the detection device 1 to the mudguard 20. Thus, the mounting structure of the detection device 1 ensures the mountability of the detection device 1.

[0040] Furthermore, in the mounting structure of the detection device 1 according to this application example, the auxiliary bracket 40 is interposed between the BSA bracket 30 and the rear portion 20B of the mudguard 20 along the vehicle length direction, so that the BSA bracket 30 and the rear stay 21 are connected via the auxiliary bracket 40. Therefore, the auxiliary bracket 40 supports the BSA bracket 30 in such a way as to suppress the influence of external forces along the vehicle length direction. Thus, the BSA bracket 30 is reinforced. As a result, vibrations to the detection device 1 are suppressed.

[0041] Furthermore, in the mounting structure of the detection device 1 according to this application example, the BSA bracket 30 is provided in a non-contact manner with respect to the opening 24 when the detection device 1 is positioned in the opening 24. This prevents friction between the BSA bracket 30 and the mudguard 20. In addition, vibrations are less likely to be transmitted from the mudguard 20 to the BSA bracket 30, thus suppressing vibrations to the detection device 1. Furthermore, in the mounting structure of the detection device 1 according to this application example, the wiring 34 of the detection device 1 is arranged along the rear surface of the BSA bracket 30 in the vehicle length direction, so the BSA bracket 30 functions as a protective member to prevent collisions with flying stones or the like from the front with respect to the wiring 34.

[0042] Furthermore, in the mounting structure of the detection device 1 according to this application example, the BSA bracket 30 is positioned forward in the vehicle length direction of the rear stay 21 and rearward in the vehicle length direction of the front end stay 23, and is positioned below the upper stay 22. Therefore, the BSA bracket 30 can be positioned inside the mudguard 20 without interfering with the stays 21 to 23 that support the mudguard 20. Furthermore, in the mounting structure of the detection device 1 according to this application example, the BSA bracket 30 is indirectly attached to the vehicle frame 10 via an upper stay 22 that is positioned forward in the vehicle length direction of the rear stay 21 and rearward in the vehicle length direction of the front end stay 23. Therefore, the BSA bracket 30 can be positioned inside the mudguard 20 without interfering with the stays 21-23 that support the mudguard 20, and the BSA bracket 30 can be stably attached to the vehicle frame 10 via the upper stay 22. [3. Others]

[0043] In the embodiment described above, the BSA bracket 30 is indirectly attached to the vehicle frame 10 via the upper stay 22. However, the BSA bracket 30 may also be directly attached to the vehicle frame 10, for example, the side rails 11 or the cab bridge 12. In addition to the auxiliary bracket 40, a reinforcing bracket for the BSA bracket 30 may also be provided. An example of a reinforcing bracket is one that extends outward in the vehicle width direction from the rear sub-stay 21C (see Figure 1) that protrudes outward from the lower end of the cab bridge 12, and connects the rear sub-stay 21C and the BSA bracket 30. To reinforce the BSA bracket 30 and the auxiliary bracket 40, ribs may be formed, or the BSA bracket 30 and the auxiliary bracket 40 may be formed from highly rigid members with an L-shaped or C-shaped cross-section.

[0044] In this specification, the device referred to as BSA (Blind Spot Assist) has various other names. Such a device is also called, for example, BSM (Blind Spot Monitoring). Therefore, the term "BSA" in this specification may be replaced with other well-known names such as "BSM". Furthermore, in this specification, "BSA" may mean a system that issues a warning to the driver when it detects a person or other vehicle to the side of the vehicle, or, in place of the above warning, or in addition to the warning, a system that controls the vehicle, such as braking control or steering control, when it detects a person or other vehicle to the side of the vehicle.

[0045] [4. Addendum] With regard to embodiments including the above-described modifications, the following additional information is disclosed. (Note 1) A mudguard is attached to the vehicle's body frame and positioned behind the vehicle's wheels, having an outer surface portion that forms the outer wall in the vehicle width direction and a rear surface portion that is connected to the outer surface portion and forms the rear wall in the vehicle length direction, with an opening provided in the outer surface portion that connects the outer side in the vehicle width direction and the inner side in the vehicle width direction, A detection device is provided for detecting an object to the side of the vehicle, and is positioned in the opening of the mudguard. The device comprises a bracket positioned forward of the rear portion and overlapping the outer surface portion when viewed from the outside in the vehicle width direction, with one end directly or indirectly attached to the vehicle body frame and the other end to which the detection device is attached, and which cantilever-supports the detection device when it is positioned in the opening. A mounting structure for a detection device characterized by the following features. (Note 2) A rear side stay is positioned further rearward in the vehicle length direction than the rear portion of the mudguard and is fixed to the rear portion, The system further comprises an auxiliary bracket attached to the bracket at one end in the vehicle length direction and attached to the rear stay at the other end in the vehicle length direction, which connects the bracket and the rear stay. The mounting structure for the detection device described in Appendix 1, characterized by the features described herein. (Note 3) The bracket is provided non-contact with respect to the opening when the detection device is positioned in the opening. A mounting structure for a detection device as described in Appendix 1 or 2, characterized by the above. (Note 4) The wiring for the detection device is arranged along the rear surface of the bracket in the vehicle length direction. A mounting structure for a detection device as described in any one of the appendices 1 to 3, characterized by the above. (Note 5) The mudguard comprises a rear stay positioned behind the rear surface of the mudguard in the vehicle length direction and fixed to the rear surface, an upper stay fixed to the upper surface forming the upper wall of the mudguard, and a front stay fixed to the front end of the mudguard in the vehicle length direction. The bracket is positioned forward in the vehicle length direction compared to the rear stay and rearward in the vehicle length direction compared to the front end stay, and is positioned below the upper stay. A mounting structure for a detection device as described in any one of the appendices 1 to 4, characterized by the above. (Note 6) The upper stay is positioned further forward in the vehicle length direction than the rear stay and further rearward in the vehicle length direction than the front end stay. The bracket is indirectly attached to the vehicle frame via the upper stay. The mounting structure for the detection device described in Appendix 5, characterized by the features described herein. [Explanation of Symbols]

[0046] 1. Detection device 2 vehicles 10. Vehicle frame 11 Side rails 12 Cabbridge 12A Upper Bracket 20 Mudguards 20A outer side 20B Rear part 20C Top part 20D front end 21 Rear side stay 21A Support bracket 21B Support bracket 21C Rear sub-stay 22 Top side stay 22A First component 22B Second component 23 Front end stay 24 openings 24X gap 26 Jig 30 BSA Bracket (Bracket) 30A: One end 30B: Other end 31 Holder 31A First side 31B Second surface part 31C Window section 32 Outer cover 33 Protective cover 34 Wiring 35 Rib 40 Auxiliary Brackets 40A: One end 40B: Other end

Claims

1. A mudguard is attached to the vehicle's body frame and positioned behind the vehicle's wheels, having an outer surface portion that forms the outer wall in the vehicle width direction and a rear surface portion that is connected to the outer surface portion and forms the rear wall in the vehicle length direction, with an opening provided in the outer surface portion that connects the outer side in the vehicle width direction and the inner side in the vehicle width direction, A detection device is provided for detecting an object to the side of the vehicle, and is positioned in the opening of the mudguard. The device comprises a bracket positioned forward of the rear portion and overlapping the outer surface portion when viewed from the outside in the vehicle width direction, with one end directly or indirectly attached to the vehicle body frame and the other end to which the detection device is attached, and which cantilever-supports the detection device when it is positioned in the opening. A mounting structure for a detection device characterized by the following features.

2. A rear side stay is positioned further rearward in the vehicle length direction than the rear portion of the mudguard and is fixed to the rear portion, The system further comprises an auxiliary bracket attached to the bracket at one end in the vehicle length direction and attached to the rear stay at the other end in the vehicle length direction, which connects the bracket and the rear stay. Mounting structure for the detection device according to claim 1.

3. The bracket is provided non-contact with respect to the opening when the detection device is positioned in the opening. Mounting structure for the detection device according to claim 1.

4. The wiring for the detection device is arranged along the rear surface of the bracket in the vehicle length direction. Mounting structure for the detection device according to claim 1.

5. The mudguard comprises a rear stay positioned behind the rear surface of the mudguard in the vehicle length direction and fixed to the rear surface, an upper stay fixed to the upper surface forming the upper wall of the mudguard, and a front stay fixed to the front end of the mudguard in the vehicle length direction. The bracket is positioned forward in the vehicle length direction compared to the rear stay and rearward in the vehicle length direction compared to the front end stay, and is positioned below the upper stay. Mounting structure for the detection device according to claim 1.

6. The upper stay is positioned further forward in the vehicle length direction than the rear stay and further rearward in the vehicle length direction than the front end stay. The bracket is indirectly attached to the vehicle frame via the upper stay. Mounting structure for the detection device according to claim 5.

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