Vehicle body structure

Abstract

The invention relates to a vehicle body structure. A vehicle body structure is provided with: a vehicle body member (F) that constitutes at least a part of a vehicle body main body; a swing arm (20) that supports a base end portion (20a) on a vehicle body member (F) so as to be capable of swinging up and down, extends from the base end portion (20a) toward one side in the front-rear direction of the vehicle, and supports a wheel (WR) at a front end portion (20b); a cover member (40) provided between a vehicle body member (F) and a wheel (WR) and attached to a vehicle body, the vehicle body structure being provided with an arm cover (60) attached to a swing arm (20) and covering the swing arm (20), the cover member (40) being provided with: an opening (42) for accommodating a cover base end (61a) of the arm cover (60), the cover base end (61a) covering the periphery of a base end (20a) of the swing arm (20); and an extension wall (41) that extends from at least a portion of the peripheral edge of the opening (42) in the front-rear direction of the vehicle toward the wheel (WR) side, and that overlaps the cover base end (61a) in a side view.

Description

TECHNICAL FIELD

[0001] The present application relates to a vehicle body structure.

[0002] This application claims priority based on Japanese Patent Application No. 202411073199 filed on September 27, 2024 in India, the contents of which are hereby incorporated by reference. BACKGROUND

[0003] In the past, in a straddle-type vehicle in which a rear wheel is supported to be swingable by a swing arm, there is a structure in which a cover member that covers the front inner side of the arrangement space (wheel house) of the rear wheel is provided with an opening portion (for example, refer to International Publication No. 2019 / 202784). The opening portion exposes an electrical mounting member to the inside of the wheel house, improving the cooling performance of the electrical mounting member. SUMMARY

[0004] The vehicle of International Publication No. 2019 / 202784 is provided with a rear fender (inner fender) that covers the upper portion of the outer periphery of the rear wheel over half a circumference. Therefore, it is difficult for impurities such as water and mud kicked up by the rear wheel to reach the opening portion. However, for example, if the inner fender is miniaturized (shortened), impurities kicked up by the rear wheel sometimes easily reach the opening portion.

[0005] On the other hand, for example, due to appearance reasons, there are cases in which an arm cover that covers the swing arm is provided. In this case, the cover member is formed with an opening portion that allows the base end side of the arm cover that swings integrally with the swing arm to enter. However, the swing arm and the arm cover are at a low position of the vehicle body, so impurities kicked up by the rear wheel sometimes reach the opening portion. Therefore, a countermeasure that suppresses the intrusion of impurities from the opening portion to the inside of the cover member is desired.

[0006] The scheme of the present application aims to allow the base end side of an arm cover that covers a swing arm to enter an opening portion of a cover member on the vehicle body side, and suppress the intrusion of impurities from the opening portion to the inside of the cover member.

[0007] In order to achieve the above-mentioned object, the vehicle body structure of the scheme of the present application adopts the following structure.

[0008] (1) The aspect of the present application relates to a vehicle body structure including: a vehicle body member (F) that constitutes at least a portion of a vehicle body main body; a swing arm (20) that is supported at a base end portion (20a) to the vehicle body member (F) so as to be swingable up and down, extends from the base end portion (20a) to one side in a vehicle front-rear direction, and supports a wheel (WR) at a front end portion (20b); and a cover member (40) that is provided between the vehicle body member (F) and the wheel (WR), and is mounted to the vehicle body main body, wherein the vehicle body structure includes an arm cover (60) that is mounted to the swing arm (20) so as to cover the swing arm (20), and the cover member (40) includes: an opening portion (42) that houses a cover base end portion (61a) of the arm cover (60) that covers a periphery of the base end portion (20a) of the swing arm (20); and an extended wall (41) that extends from at least a portion of a peripheral portion of the opening portion (42) to the wheel (WR) side in the vehicle front-rear direction, and overlaps the cover base end portion (61a) in a side view.

[0009] According to the aspect (1) described above, when the swing arm swings during running of the vehicle, and the cover base end portion of the arm cover swings together with the swing arm, the following effects are obtained. That is, the swing of the cover base end portion is accepted by the opening portion, and interference between the arm cover and the cover member is avoided. Furthermore, the extended wall overlaps the cover base end portion in a side view, and thus the opening portion is difficult to be seen in a side view. Thus, the appearance of the periphery of the base end portion of the swing arm is improved, and the intrusion of water, mud, and the like into the inside of the cover member is suppressed.

[0010] The "vehicle body main body" described above indicates a portion that is integrated without including a movable portion in the entire vehicle body. The "vehicle body main body" indicates a single body or an aggregate excluding a portion of a wheel suspension device (movable portion). The "vehicle body main body" can include a structure other than a vehicle body frame.

[0011] (2) In the aspect (1) described above, the vehicle body structure can include a flexible member (33, 72) that extends linearly from the vehicle body main body side to the inside of the arm cover (60), a portion of the cover base end portion (61a) that overlaps the extended wall (41) in a side view can be provided with a penetration portion (65) that penetrates in a vehicle width direction, and the flexible member (72) can be disposed inside the arm cover (60) through the penetration portion (65).

[0012] According to the aspect (2) described above, the flexible member that extends from the vehicle body main body side is disposed inside the arm cover through the penetration portion at a portion that overlaps the extended wall in a side view. Thus, the insertion portion of the flexible member into the arm cover is not seen in a side view, the appearance is improved, and the intrusion of water, mud, and the like into the arm cover is suppressed.

[0013] (3) In the aspect of (1) above, the vehicle body structure can include a flexible member (33, 72) extending linearly from the vehicle body main part side to the inside of the arm cover (60), a bulging portion (64) can be formed at a portion of the cover base end portion (61a) that overlaps the extended wall (41) in a side view, the bulging portion (64) can form an opening portion (64a) that is open to the vehicle body main part side, and the flexible member (33, 72) can be disposed inside the arm cover (60) from the opening portion (64a) of the bulging portion (64).

[0014] According to the aspect of (3) above, the flexible member extending from the vehicle body main part side is disposed inside the arm cover from the opening portion of the bulging portion at a portion that overlaps the extended wall in a side view. Thus, the flexible member is easily disposed, and the movable range of the flexible member at the cover base end portion can be widened by the bulging portion.

[0015] (4) In the aspect of (3) above, a through portion (65) that penetrates in the vehicle width direction can be formed at a portion of the bulging portion (64) that overlaps the extended wall (41) in a side view, and the through portion (65) can be formed by cutting the periphery of the opening portion (64a) of the bulging portion (64).

[0016] According to the aspect of (4) above, the flexible member extending from the vehicle body main part side is disposed inside the arm cover through the bulging portion and the through portion. Thus, the flexible member is easily disposed, and the opening portion can be widened by the cutout-shaped through portion, and the movable range of the flexible member can be widened.

[0017] (5) In the aspect of (1) above, the swing arm (20) can include a pair of left and right arm bodies (50), the arm cover (60) can include a pair of left and right cover bodies (61) that cover the left and right arm bodies (50), respectively, and a cover link portion (69) that links the base end sides of the left and right cover bodies (61) to each other, and the opening portion (42) can form an outer side housing space (42c1) that houses the base end sides of the left and right cover bodies (61) and an inner side housing space (42d1) that houses the cover link portion (69).

[0018] According to the aspect of (5) above, the opening portion of the cover member forms the inner side housing space that houses the cover link portion on the inner sides of the left and right cover bodies of the arm cover in addition to the outer side housing space that houses the left and right arm bodies of the arm cover. Thus, a member such as a hugger fender can be easily disposed at the cover link portion of the arm cover that swings together with the swing arm. That is, the cover link portion of the arm cover can be prevented from interfering with the cover member by the inner side housing space.

[0019] (6) In the above-mentioned (5) solution, the extension wall (41) may be formed on the left and right side edges (42a) of the opening (42), and the upper edge (42b) between the upper ends of the side edges (42a) of the opening (42) extending to the left and right has a reverse extension wall (43), which extends from the upper edge (42b) to the opposite side of the wheel (WR) in the vehicle front-rear direction with a left and right width corresponding to the inner receiving space (42d1).

[0020] According to the above-described (6) scheme, an extension wall extending in the opposite direction to the wheel is provided on the upper edge between the upper ends of the left and right side edges of the opening. This suppresses the decrease in strength of the upper edge of the opening and hides the inner side of the inner receiving space by means of the extension wall extending in the opposite direction. This improves the appearance of the area around the opening and suppresses the intrusion of water, mud, and other substances into the inner side of the cover member.

[0021] (7) In any of the above schemes (1) to (6), the cover member (40) may cover the vehicle driving electrical installation member (30) mounted on the vehicle body from the wheel (WR) side, and the opening (42) overlaps with the electrical installation member (30) at least partially in the vertical direction of the vehicle.

[0022] According to the above-described (7) scheme, the cover member covers the electrical installation components for vehicle operation from the wheel side (wheel cover side), and the opening of the cover member overlaps with the electrical installation components in the height direction. Therefore, for electric vehicles requiring improved cooling of high-voltage electrical installation components, the extended wall can suppress impurities from entering the opening.

[0023] According to the present invention, the base end of the arm cover covering the swing arm can enter the opening of the cover member on the body body side, and the intrusion of impurities from the opening into the inside of the cover member can be suppressed. Attached Figure Description

[0024] Figure 1 This is a left-side view of an electric two-wheeled vehicle according to an embodiment of the present invention.

[0025] Figure 2 This is a left-side view of the rear of the aforementioned electric two-wheeled vehicle with the front panel under the seat removed.

[0026] Figure 3 This is a rear view of the aforementioned electric two-wheeled vehicle, viewed from behind.

[0027] Figure 4 This is a left-side view of the rear of the aforementioned electric two-wheeled vehicle, including a partial cross-section.

[0028] Figure 5 is a left side view of the swing arm periphery of the above-described electric two-wheeled vehicle.

[0029] Figure 6 is a right side view of the swing arm periphery of the above-described electric two-wheeled vehicle.

[0030] Figure 7 is a perspective view showing the cover structure of the front end side of the swing arm of the above-described electric two-wheeled vehicle.

[0031] Figure 8 is a perspective view showing the cover structure of the entire swing arm of the above-described electric two-wheeled vehicle.

[0032] Figure 9 is a plan view showing the luggage case under the seat of the above-described electric two-wheeled vehicle as viewed from above the vehicle.

[0033] Figure 10 is a left side view of the battery cover of the above-described electric two-wheeled vehicle.

[0034] Figure 11 is a rear view of the battery cover of the above-described electric two-wheeled vehicle.

[0035] Symbol explanation

[0036] 1 electric two-wheeled vehicle, 20 swing arm, 20a front end portion (proximal end portion), 20b rear end portion (distal end portion), 30 battery (electrical installation member), 33 three-phase cable (flexible member), 40 battery cover (cover member), 41 extended wall, 42 opening portion, 42a side edge portion, 42b upper edge portion, 42c1 outer side housing space, 42d1 inner side housing space, 43 reverse direction extended wall, 50 arm main body, 60 arm cover, 61 cover main body, 61a cover proximal end portion, 64 bulging portion, 64a open portion, 65 through portion, 69 cover connecting portion, 72 brake cable (flexible member), 80 mudguard portion, F vehicle body frame (vehicle body member), VI cover extension reference line, VII arm extension reference line, WR rear wheel (wheel). DETAILED DESCRIPTION

[0037] Hereinafter, an embodiment of the present application will be described with reference to the drawings. Note that in the following description, the front-rear, left-right, and the like are the same as the directions of the vehicle unless otherwise specified. Also, in the drawings used in the following description, an arrow FR indicating the front of the vehicle, an arrow LH indicating the left of the vehicle, an arrow UP indicating the top of the vehicle, and a line CL indicating the center of the vehicle body are appropriately shown.

[0038] "Middle" used in the present embodiment means not only the center between both ends of an object, but also the range including the inside between both ends of the object.

[0039] The straddled vehicle in the following description is in a parked state with the vehicle body not inclined to the left or right and straight up with a rudder angle of 0 degrees, and in a 1G state with an empty vehicle on a horizontal plane.

[0040] <Overall vehicle>

[0041] Figure 1 is a left side view of an electrically driven two-wheeled vehicle (straddled vehicle) 1 which is an embodiment of the present application. Figure 2 is a left side view of the rear portion of the vehicle body in a state where a lower front wall 24 of the seat of the electrically driven two-wheeled vehicle 1 is removed. Figure 3 is a rear view of the electrically driven two-wheeled vehicle 1 as viewed from the rear of the vehicle. Figure 4 is a left side view of the rear portion of the vehicle body of the electrically driven two-wheeled vehicle 1 including a partial cross section.

[0042] As shown in Figures 1-4 , the electrically driven two-wheeled vehicle 1 is a so-called step-through type electric vehicle provided with a low floor floor 25 for a passenger to put his feet between a steering handle 2 and a seat 23.

[0043] A front wheel WF of the electrically driven two-wheeled vehicle 1 is rotatably shaft-supported to lower end portions of a pair of left and right front forks 9. The front wheel WF and the left and right front forks 9 are steerable by the steering handle 2 provided so as to extend in the vehicle width direction (vehicle left-right direction). Left and right grip portions 2a to be held by a passenger are provided on both sides of the steering handle 2. A brake lever 26 is disposed in front of each of the left and right grip portions 2a.

[0044] The vehicle body of the electrically driven two-wheeled vehicle 1 is provided with various covers made of synthetic resin. For example, a portion of the steering handle 2 other than the left and right grip portions 2a is covered by a handle cover 4. A front cover 5 covering the vehicle front side of the front portion of the vehicle body and an inner cover 27 covering the vehicle rear side of the front portion of the vehicle body are provided below the handle cover 4. A headlamp 7 is provided on the vehicle front side of the front cover 5. An upper portion of the front wheel WF is covered by a front fender 8. The front fender 8 is supported between the left and right front forks 9.

[0045] A bottom cover 10 connected to the rear of the lower end portion of the front cover 5 is provided in a lower portion of the low floor floor 25. A seat 23 on which a driver sits is disposed above the rear of the low floor floor 25. A seat lower front wall 24 is provided below the seat 23. The seat lower front wall 24 is provided with a rear center cover 24a covering the vehicle front side of the rear portion of the vehicle body and a pair of left and right rear side covers 24b covering the left and right outer sides of the rear portion of the vehicle body. A tail lamp 19 is provided on the vehicle rear side of the seat lower front wall 24. A rear grip 14 is provided above the rear portion of the seat lower front wall 24.

[0046] A footrest 36 is located on the left side of the vehicle body, below the front panel 24 under the seat. The footrest 36 extends outward in the width direction of the vehicle and can accommodate the feet of rear passengers. Rear seat footrests 13 are located on the left and right sides of the rear of the underbody 10. A side bracket 11 is located on the left side of the underbody 10 to support the vehicle body in an upright position tilted to the left. A luggage compartment 16 for storing items such as helmets is located under the seat 23 and inside the front panel 24 under the seat. The upper opening of the luggage compartment 16 is opened and closed by rotating the seat 23.

[0047] Figure 9 This is a top view of the luggage compartment 16 under the seat 23 of the electric two-wheeler 1, viewed from above the vehicle.

[0048] like Figure 4 , Figure 9 As shown, the suitcase 16 includes a charger holding section 18 for holding a battery charger 17 for charging a battery. The charger holding section 18 can fix the battery charger 17 in a fixed position by means of a rubber band or other component mounted on the bottom or side wall of the suitcase 16.

[0049] <Car Body Frame F>

[0050] like Figure 1 , Figure 2 As shown, the electric two-wheeled vehicle 1 has a body frame F (body component) that forms the skeleton of the vehicle body. The body frame F is formed by joining various steel materials together by welding or other methods.

[0051] The vehicle frame F includes: a main frame F2 extending downwards from the head tube F1 and then curving rearwards along the width direction; a transverse frame F3 extending along the width direction at the rear end of the main frame F2; and a pair of left and right rear frames F4 extending upwards and rearwards from the left and right sides of the transverse frame F3. The left and right rear frames F4 each include: an inclined section F4a extending upwards and rearwards from the transverse frame F3 at an angle when viewed from the side; and a horizontal section F4b extending approximately horizontally from the upper rear end of the inclined section F4a, curving rearwards. The lower front portions of the left and right inclined sections F4a are connected to each other via a curved tube F5. When viewed from the front-rear direction of the vehicle, the curved tube F5 has an upwardly convex curved shape.

[0052] Further, the vehicle body frame F includes a battery support frame F6 that supports the battery 30 from the rear, as will be described later, at the rear of the inclined portions F4a of the left and right rear frames F4. The battery support frame F6 includes a bent frame F7 that extends from the left and right side portions of the cross frame F3 rearward and then extends upward and rearward at the same inclination as the inclined portions F4a in a side view, and a link frame F8 that links the upper portion of the bent frame F7 and the middle portion of the inclined portions F4a of the rear frames F4. A pivot plate 12 that supports the front end portion of the swing arm 20 is fixed to the rear of the lower portion of the bent frame F7.

[0053] The PCU 31 is disposed in front of the curved pipe F5. The PCU 31 (Power Control Unit) is a control unit that integrates a motor driver (PDU: Power Driver Unit) including an inverter and a control device (ECU: Electric Control Unit). A charging port 32 that connects a battery charger 17 taken out from the trunk 16 and can charge the battery 30 is disposed above the PCU 31. The curved pipe F5, the PCU 31, and the charging port 32 are covered by the front portion of the seat lower cowl 24.

[0054] The battery (high-voltage electrical component) 30 is mounted below the rear of the inclined portions F4a of the left and right rear frames F4. The battery 30 accumulates electric power for running of the scooter 1. The battery 30 is a storage device that can charge and discharge, and is constituted by, for example, a lithium-ion battery. Battery cables (not shown) are extended from positive and negative electrodes provided at the upper portion of the battery 30. Each battery cable is connected to the PDU. A three-phase cable 33 (see FIG. 2) is extended from the PDU and is connected to the electric motor (hub motor 35, described later) that is a three-phase alternating-current motor. Figure 6

[0055] The battery 30 has, for example, a length in one direction in a rectangular parallelepiped shape in a side view. The battery 30 has, for example, a length direction parallel to the inclined portions F4a of the rear frames F4 in a side view. The battery 30 is fixed to the left and right inclined portions F4a using various fastening structures and the like. A DC-DC converter (step-down regulator) that steps down the electric power of the battery 30 and outputs the same is disposed, for example, on the right side of the upper portion of the battery 30.

[0056] Figure 5 FIG. 6 is a left side view of the vicinity of the swing arm 20 of the scooter 1. Figure 6 FIG. 7 is a right side view of the vicinity of the swing arm 20 of the scooter 1.

[0057] Referring to FIGS. 6 and 7 Figure 5 , Figure 6 ​The rear wheel WR of the electric two-wheeled vehicle 1 is supported at the rear end portion of the swing arm 20. The rear wheel WR is drivable by a hub motor 35. The front end portion of the swing arm 20 is linked to the vehicle body frame F. The rear wheel WR and the hub motor 35 are supported at the rear end portion of the swing arm 20.

[0058] The hub motor 35 is driven by electric power of the storage battery 30. The hub motor 35 is disposed along the vehicle width direction (coaxially with the vehicle axle AX of the rear wheel WR) of the drive shaft. The symbol C2 indicates the center axis (axle) of the rear wheel vehicle axle AX. The hub motor 35 has a rotor that rotates integrally with the drive shaft and a stator that opposes the magnet of the rotor with the coil. The hub motor 35 performs variable speed drive based on, for example, VVVF (variable voltage variable frequency) control. The hub motor 35 is controlled in speed like a continuously variable transmission, but is not limited thereto. The hub motor 35 can be controlled in speed like a stepped transmission. A reduction mechanism that reduces the output of the hub motor 35 can be provided separately.

[0059] The drive wheel (rear wheel WR) is driven by the rotational drive force generated by the hub motor 35 to drive the electric two-wheeled vehicle 1. The swing arm 20 links the lower end portions of, for example, a pair of left and right rear shock absorbers 28. The upper end portions of the left and right rear shock absorbers 28 are linked to the horizontal portions F4b of the left and right rear frames F4.

[0060] <Storage battery cover 40>

[0061] Figure 7 is a perspective view of a cover structure on the front end side of the swing arm 20 of the electric two-wheeled vehicle 1.

[0062] Referring to Figures 5-7 The storage battery cover 40 (cover member) is disposed between the vehicle body member (vehicle body frame F) and the rear wheel WR. The storage battery cover 40 is mounted to the vehicle body frame F to cover the rear portion of the storage battery 30 from the rear side (rear wheel WR side) of the vehicle. The storage battery cover 40 faces the disposition space (tire cover) of the rear wheel WR of the rear portion of the vehicle body.

[0063] Figure 10 is a left side view of the storage battery cover 40. Figure 11 is a rear view of the storage battery cover 40.

[0064] The battery cover 40 has: a rear surface portion 40a opposed to the rear surface of the battery 30 from the rear; and left and right side surface portions 40b curved from the left and right side edges of the rear surface portion 40a toward the front of the vehicle. The lower portion of the rear surface portion 40a is cut away, and the swing arm 20 and the front end portion of the arm cover 60 described later can be housed from the rear of the vehicle (the swing arm 20 and the front end portion of the arm cover 60 described later are caused to enter). The left and right side surface portions 40b face in the vehicle width direction. The left and right side surface portions 40b protrude rearward beyond the range from the front lower edge of the rear cover 24b to the rear end edge of the under cover 10 in side view, and are a part of the exterior appearance of the vehicle body.

[0065] <swing arm 20>

[0066] Figure 8 is a perspective view showing the cover structure of the swing arm 20 of the motor scooter 1 as a whole.

[0067] With reference to Figure 5 , Figure 6 , Figure 8 , the swing arm 20 has a pair of left and right arm bodies 50, and an arm link portion (not shown) linking the front portions of the left and right arm bodies 50 to each other.

[0068] The left and right arm bodies 50 are located below the rear portion of the vehicle body and extend in the vehicle fore-and-aft direction. The left and right arm bodies 50 are, for example, composed of square steel pipes and extend linearly in side view. A cylindrical pivot support portion 22 through which the pivot 15 passes is provided at the front end portion (proximal end portion) 20a of the left and right arm bodies 50.

[0069] A wheel shaft support portion 29 through which the rear wheel axle AX passes is provided at the rear end portion (front end portion) 20b of the left and right arm bodies 50.

[0070] The swing arm 20 is rotatably supported at the front end portion (proximal end portion) 20a to the left and right pivot plates 12, and supports the rear wheel WR at the rear end portion (front end portion) 20b. The swing arm 20 is supported to the left and right pivot plates 12 so as to be able to swing up and down about the pivot 15 as a center. The symbol C1 in the drawing represents the central axis (axle) of the pivot 15. The front portions of the left and right arm bodies 50 are linked to each other by a cross member, i.e., the arm link portion (not shown), extending in the vehicle width direction, and are integrated. Hereinafter, the left arm body 50 will be sometimes represented by the symbol 50L, and the right arm body 50 will be sometimes represented by the symbol 50R.

[0071] <arm cover 60>

[0072] With reference to Figure 5 , Figure 6 , Figure 8 , the arm cover 60 is integrally swingably mounted to the swing arm 20.

[0073] The arm cover 60 has a pair of left and right cover bodies 61, and a cover link portion 69 linking between the left and right cover bodies 61.

[0074] Each cover body 61 is configured to cover the left and right arm bodies 50 on the same side from the outside in the vehicle width direction. Each cover body 61 is, for example, mounted on the left and right arm bodies 50 on the same side.

[0075] Each cover body 61 has a U-shaped cross-sectional shape that opens inward in the vehicle width direction in a cross section intersecting (e.g., orthogonal) with the vehicle's longitudinal direction. Each cover body 61 extends along the vehicle's longitudinal direction from its front end (cover base end) 61a, which overlaps with the pivot 15 in a side view, to its rear end (cover front end) 61b, located rearward of the rear end 20b of the swing arm 20. Each cover body 61 is configured to extend rearward longer than the swing arm 20.

[0076] Each cover body 61 includes: an outer wall 61c forming an outer side facing outward in the vehicle width direction; and upper and lower walls 61d and 61e extending inward in the vehicle width direction from the upper and lower edges of the outer wall 61c, respectively. Each cover body 61 has a widened portion 62 at its midpoint in the vehicle's longitudinal direction (specifically, a portion slightly forward of the midpoint). This widened portion 62 has the greatest outward protrusion in the vehicle width direction. The width of each cover body 61 gradually narrows towards the rear from the widened portion 62, and the outward protrusion in the vehicle width direction decreases. The width of each cover body 61 gradually narrows towards the front from the widened portion 62, and the outward protrusion in the vehicle width direction decreases. An upper wall opening 63 is formed on the upper wall 61d of each cover body 61 for the lower part of the rear shock absorber 28 to pass through. The upper wall opening 63 is, for example, a U-shaped opening that opens inward in the vehicle width direction, but it can also be an endless opening that closes inward in the vehicle width direction.

[0077] In a side view, the cover extension reference line VI of each cover body 61 has an angle θ relative to the arm extension reference line VII of each arm body 50. In a side view, the cover extension reference line VI is a straight line connecting the upper and lower center portions of the front end portion 61a of the cover to the upper and lower center portions of the rear end portion 61b of the cover (or the axis C2 of the rear wheel axle AX). In a side view, the arm extension reference line VII is a straight line connecting the axis C1 of the pivot 15 to the axis C2 of the rear wheel axle AX. Hereinafter, the left cover body 61 is sometimes indicated by the symbol 61L, and the right cover body 61 is sometimes indicated by the symbol 61R.

[0078] The cover extension reference line VI is configured to have an angle Θ with respect to the arm extension reference line VII, for example, around the axis of the rear wheel axle AX. The cover extension reference line VI is inclined upwardly from the front to the rear with respect to the arm extension reference line VII. Thus, an appearance of a jump of the rear shock absorber 28 is exhibited. The actual pivot 15 is located at a position lower than the upper and lower central portions of the cover front end portion 61a of the arm cover 60. Thus, a cord-like member (flexible member) extending from the vehicle body frame F side to the rear wheel WR side easily passes over the pivot 15. The cord-like member is an example of an elongated, linear flexible member capable of flexing. In the embodiment, as the cord-like member, three-phase wire cable 33 and brake cable 72 are exemplified, but are not limited thereto.

[0079] Referring to Figure 5 A brake cable 72 (flexible member) passing through the upper portion of the left arm main body 50L to reach the rear brake 71 is provided on the inner side of the left cover main body 61L. The brake cable 72 extends from the left brake lever 26 to the brake arm 73 of the rear brake 71, for example. The brake cable 72 extends to the rear on the left inner side of the low floor floor 25, passes over the pivot 15 to reach the brake arm 73. The brake cable 72 is a conventional operation cable provided with an inner cable and an outer cable through which the inner cable can slide.

[0080] A bulge portion 64 that changes the area of the rectangular shape observed in side view to the outside in the vehicle width direction is formed in the front portion of the left cover main body 61L. The bulge portion 64 changes the front end edge of the left cover main body 61L to the outside in the vehicle width direction. The bulge portion 64 is formed to the front end (terminal end) of the arm cover 60, and is open toward the vehicle body main body side at the front end of the arm cover 60. Hereinafter, the open portion at the front end of the arm cover 60 in the bulge portion 64 is indicated by the symbol 64a.

[0081] The brake cable 72 enters the inner side of the left cover main body 61L at a position overlapping the front end edge of the bulge portion 64 in side view. That is, the brake cable 72 passes into the left cover main body 61L from the open portion 64a of the bulge portion 64. The interval between the left arm main body 50L and the left cover main body 61L is widened due to the bulge portion 64. Thus, contact of the cover front end portion 61a of the left cover main body 61L with the brake cable 72 can be suppressed.

[0082] The protruding portion 64 is formed in the left cover main body 61L so as to cut out a region in the battery cover 40 that overlaps with the later-described extended wall 41 in a side view. The cutout portion 65 is formed, for example, in a rectangular shape in a side view so as to cut out the front end edge of the left cover main body 61L (in a manner that is open to the front of the vehicle). The brake cable 72 extends from a position that is more forward than the cover front end portion 61a of the left cover main body 61L and that is on the outer side in the vehicle width direction, toward a position that is more rearward than the cover front end portion 61a of the left cover main body 61L and that is on the inner side in the vehicle width direction. The brake cable 72 is disposed so as to pass through the cutout portion 65 of the cover front end portion 61a of the left cover main body 61L. Thus, contact between the cover front end portion 61a of the left cover main body 61L and the brake cable 72 can be further suppressed.

[0083] The rear brake 71 of the embodiment is a mechanical drum brake, but in the case of a hydraulic brake such as a disc brake, a hydraulic hose is disposed in place of the brake cable 72. A rear opening portion 66 that ensures a front-rear swing space for the brake arm 73 is formed in the rear portion of the upper wall 61d of the left cover main body 61L. The rear opening portion 66 is, for example, in a U shape that is open to the inner side in the vehicle width direction, but can also be an open portion that is closed on the inner side in the vehicle width direction.

[0084] Reference Figure 6 A three-phase cable 33 (flexible member) that is connected to the wheel hub motor 35 is disposed on the inner side of the right cover main body 61R from above the right arm main body 50R to the inner side in the vehicle width direction. The three-phase cable 33 extends downward from the PCU 31, extends rearward on the right inner side of the low-floor floor 25, and then curves upward to pass above the pivot shaft 15. After the three-phase cable 33 has passed above the pivot shaft 15 while being inclined with the lower portion in front and the upper portion in back, the three-phase cable 33 curves downward to reach the inner side in the vehicle width direction of the right arm main body 50R and is connected to the wheel hub motor 35.

[0085] A protruding portion 64 that changes the rectangular shape of the region in a side view to the outer side in the vehicle width direction is formed in the front portion of the right cover main body 61R. The protruding portion 64 changes the front end edge of the right cover main body 61R to the outer side in the vehicle width direction. The protruding portion 64 is formed to the front end (terminal end) of the arm cover 60, and an open portion 64a that is open to the vehicle body main body side is formed at the front end of the arm cover 60.

[0086] The three-phase cable 33 enters the inner side of the right cover main body 61R at a position that overlaps with the front end edge of the protruding portion 64 in a side view. That is, the three-phase cable 33 passes into the right cover main body 61R from the open portion 64a of the protruding portion 64. The space between the right arm main body 50R and the right cover main body 61R is widened due to the protruding portion 64. Thus, contact between the cover front end portion 61a of the right cover main body 61R and the three-phase cable 33 can be suppressed.

[0087] The through portion 65 is, for example, in a U shape that is open toward the front of the vehicle, but can also be an open portion in a loop shape that is closed toward the front of the vehicle. Depending on the arrangement path of the cord-like member 72, there is also a structure in which the through portion 65 is not provided to the left cover main body 61L. Also, there is a structure in which the through portion 65 is provided to the right cover main body 61R.

[0088] Referring to Figure 5 , Figure 6 , Figure 8 The cover link portion 69 of the arm cover 60 links between the front upper portions of the left and right cover main bodies 61. The cover link portion 69 is formed, for example, with a bulging portion 64 that bulges upward more than the upper walls 61d of the left and right cover main bodies 61 at a position that is rearward of the bulging portion 64. A fender portion 80 that extends rearward and upward in a circular arc shape in side view is formed rearward of the bulging portion 64 along the outer peripheral shape of the front upper portion of the rear wheel WR. The cover link portion 69 and the fender portion 80 constitute a so-called hugger fender that suppresses the bounce of the rear wheel WR upward and forward. The fender portion 80 can be considered as a part of the cover link portion 69.

[0089] A pair of left and right front fixed legs 81 that extend toward the front and lower sides are provided to the front portion of the cover link portion 69. A pair of left and right rear fixed legs 84 that extend toward the lower side are provided to the rear portion of the cover link portion 69.

[0090] The left and right front fixed legs 81 are respectively fixed to front fixed brackets 82 that are provided protruding upward at the front portions of the left and right arm main bodies 50 by appropriate fastening and linking tools or the like. A substantially vertical mud plate 83 that extends in connection with the lower side of the inner surface of the fender portion 80 is formed between the left and right front fixed legs 81. The left and right front fixed legs 81 and the mud plate 83 are disposed at positions that are forward of the front end portions of the rear wheels WR.

[0091] The left and right rear fixed legs 84 are respectively fixed to rear fixed brackets 85 that are provided protruding upward at the front and rear intermediate portions of the left and right arm main bodies 50 by appropriate fastening and linking tools or the like. The left and right rear fixed legs 84 are disposed in positions that overlap the front portions of the rear wheels WR in side view and are disposed at positions that are outward in the vehicle width direction from the left and right front fixed legs 81. At the left and right side portions of the cover link portion 69, the front and rear fixed legs 81, 84 are provided as open portions 86 through which the cord-like members 33, 72 pass.

[0092] The vehicle width direction inner sides of the upper walls 61d of the left and right cover main bodies 61 are respectively fixed to the left and right side surfaces of the cover link portion 69 by embedding or the like. The left and right cover main bodies 61 and the fender portion 80 are integrated via the cover link portion 69.

[0093] The lower wall 61e of the left and right cover main bodies 61 has a pair of front and rear fixing portions 87a, 87b. These front and rear fixing portions 87a, 87b are fixed to front and rear brackets (not shown) provided protruding on the lower portions of the left and right arm main bodies 50, respectively, by a suitable fastening link or the like fixing mechanism. For example, a bracket bracket 67 is fixed below the front end portion 20a of the swing arm 20. The base end portion of a central bracket 68 that supports the vehicle body in an upright state is swingably supported to the bracket bracket 67.

[0094] <Details of the Battery Cover 40>

[0095] Figure 7 is a perspective view showing the cover structure of the front end side of the swing arm 20 of the electric bicycle 1.

[0096] Referring to Figure 7 , Figure 10 , Figure 11 , the battery cover 40 has an opening portion 42 at the rear portion 40a. The opening portion 42 is formed by cutting the lower portion of the rear portion 40a. When viewed from the vehicle front-rear direction, the opening portion 42 has a U shape that is open downward. The opening portion 42 has a pair of left and right side edge portions 42a on both sides in the vehicle width direction, and an upper edge portion 42b that extends between the upper ends of the left and right side edge portions 42a. When viewed from the vehicle front-rear direction, the left and right side edge portions 42a are integrated with the upper edge portion 42b, and thus the opening portion 42 is open downward. The opening portion 42 is not limited to the U shape that is open downward, and can be an open end shape that is closed at the lower portion.

[0097] The front end portion 20a of the swing arm 20 and the cover front end portion 61a of the arm cover 60 approach the battery cover 40 from the vehicle rear side. When viewed from the side, the front end portion 20a of the swing arm 20 and the pivot plate 12 are located at positions that are further rearward than the left and right side edge portions 42a of the opening portion 42. When viewed from the side, the cover front end portion 61a of the arm cover 60 is located at a position that is further forward than the left and right side edge portions 42a of the opening portion 42. Figure 5 , Figure 6 When viewed from the side in the empty vehicle 0G state, the cover front end portion 61a of the arm cover 60 overlaps the left and right side edge portions 42a of the opening portion 42, or is located at a position that is further forward than the left and right side edge portions 42a.

[0098] When the swing arm assembly (assembly in a state in which the arm cover 60 is attached to the swing arm 20) 100 is swung up and down, the opening portion 42 enables the front end portion of the swing arm assembly 100 (including the front end portion of the cover link portion 69 in addition to the front end portions of the swing arm 20 and the arm cover 60) to be advanced and retracted. The opening portion 42 forms a housing space K that is larger than the front end portion of the swing arm assembly 100. The opening portion 42 houses (causes to enter) the front end portion of the swing arm assembly 100 in the housing space K with a gap required for swinging up and down. Thus, the front end side of the swing arm assembly 100 is caused to enter and accept (allow) the swing of the swing arm assembly 100.

[0099] Here, "A houses B" in the embodiments is not only a state where A necessarily makes B enter all the time, but also includes a state where A and B are arranged in such a close proximity that they temporarily enter somewhere in the swing range of the swing arm.

[0100] For example, when the swing arm assembly 100 swings upward, the front end portion of the swing arm assembly 100 moves as follows. That is, the portion of the front end portion of the swing arm assembly 100 that is higher than the pivot 15 enters the opening portion 42 (advances), and the portion of the front end portion of the swing arm assembly 100 that is lower than the pivot 15 retreats toward the rear of the opening portion 42 (retreats).

[0101] For example, when the swing arm assembly 100 swings downward, the front end portion of the swing arm assembly 100 moves as follows. That is, the portion of the front end portion of the swing arm assembly 100 that is higher than the pivot 15 retreats toward the rear of the opening portion 42 (retreats), and the portion of the front end portion of the swing arm assembly 100 that is lower than the pivot 15 enters the opening portion 42 (advances).

[0102] The opening portion 42 is cut away upwardly on the left and right outer sides 42c so as to avoid the left and right cover main bodies 61 in the arm cover 60. The symbol 42cl in the drawing indicates an outer housing space formed in the range corresponding to the outer sides 42c in the housing space K.

[0103] A flange 45 that stands rearward is formed on the peripheral portion of the left and right outer sides 42c of the opening portion 42, and the peripheral portion is reinforced. An extension wall 41 that extends the flange 45 toward the rear (toward the rear wheel) is formed on the left and right side edges 42a of the opening portion 42. The extension wall 41 is disposed so as to overlap the front end portion of the cover main body 61 in a side view. Thus, the opening portion 42 is difficult to be seen in a side view, and the appearance of the front end portion of the cover main body 61 can be improved, and the intrusion of water and mud into the opening portion 42 can be suppressed. The wider the width of the vehicle in the front-rear direction is formed on the lower side of the extension wall 41, the more difficult the front end portion of the cover main body 61 is to be seen.

[0104] The extension wall 41 is provided in a pair of left and right, and is, for example, left-right symmetrical with respect to the center of the vehicle body, but can be a structure in which the shape is made different (made left-right asymmetrical) in the left and right according to the surrounding components.

[0105] The portion between the left and right outer sides 42c in the upper edge portion 42b of the opening portion 42 (hereinafter referred to as the left and right inner sides 42d of the upper edge portion 42b) opposes the bulging shape of the cover joint portion 69 in the arm cover 60. The symbol 42dl in the drawing indicates an inner housing space formed in the range (between the left and right outer housing spaces 42cl) corresponding to the inner sides 42d in the housing space K.

[0106] The left and right inner side portions 42d of the upper edge portion 42b are provided with no flange 45 that stands upward toward the rear, in order to avoid the bulging shape of the cover linking portion 69. On the other hand, the left and right inner side portions 42d of the upper edge portion 42b are provided with reverse direction extending walls 43 that extend toward the opposite side (front side) of the cover linking portion 69 and the rear wheel WR in the vehicle front-rear direction. Thus, the strength of the upper edge portion of the opening portion can be suppressed from decreasing, and the inner side of the inner side housing space 42d1 can be hidden by the reverse direction extending walls.

[0107] As described above, the vehicle body structure of the above-described embodiment is provided with a vehicle body frame F that serves as a skeleton of a vehicle body, a swing arm 20 that is supported at a base end portion 20a to the vehicle body frame F so as to be swingable up and down, extends toward the rear of the vehicle from the base end portion 20a, and supports a rear wheel WR at a front end portion 20b, and a battery cover 40 that is provided between the vehicle body frame F and the rear wheel WR, and is mounted to a vehicle body main body, wherein the vehicle body structure is provided with an arm cover 60 that is mounted to the swing arm 20 and covers the swing arm 20, and the battery cover 40 is provided with an opening portion 42 that houses a cover base end portion 61a of the arm cover 60 that covers the vicinity of the base end portion 20a of the swing arm 20, and an extending wall 41 that extends from at least a portion of a peripheral portion of the opening portion 42 toward the rear wheel WR side in the vehicle front-rear direction, and overlaps the cover base end portion 61a in a side view.

[0108] By being thus configured, at the time of running of the vehicle and the like, when the swing arm 20 swings, and the cover base end portion 61a of the arm cover 60 that swings together with the swing arm 20 swings, the following effects exist. That is, the swing of the cover base end portion 61a is accepted (allowed) by the opening portion 42, and interference of the arm cover 60 with the battery cover 40 can be avoided. Also, the extending wall 41 overlaps the cover base end portion 61a in a side view, and thus the opening portion 42 is difficult to be seen in a side view. Thus, the appearance of the vicinity of the base end portion 20a of the swing arm 20 is improved, and the intrusion of water, mud, and the like into the inside of the battery cover 40 can be suppressed.

[0109] In the above-described vehicle body structure, a flexible member (three-phase cable 33, brake cable 72) that extends linearly from the vehicle body main body side toward the inside of the arm cover 60 is provided, a penetration portion 65 that penetrates in the vehicle width direction is formed in a portion of the cover base end portion 61a of the left cover main body 61L that overlaps the extending wall 41 in a side view, and the flexible member (brake cable 72) is disposed inside the left cover main body 61L by passing through the penetration portion 65.

[0110] By being thus configured, the flexible member (brake cable 72) that extends from the vehicle body main body side is disposed inside the arm cover 60 at a portion that overlaps the extending wall 41 in a side view, by passing through the penetration portion 65. Thus, the insertion and extraction portion of the flexible member that is inserted and extracted into the arm cover 60 is not seen in a side view, the appearance is improved, and the intrusion of water, mud, and the like into the arm cover 60 can be suppressed.

[0111] In the above vehicle body structure, the flexible member (three-phase cable 33, brake cable 72) extending linearly from the vehicle body main part side to the inside of the arm cover 60 is formed with a bulging portion 64 bulging to the outside in the vehicle width direction at a portion overlapping the extension wall 41 in a side view in the cover base end portion 61a, the bulging portion 64 is formed to the base end of the arm cover 60, an opening portion 64a is formed opening to the vehicle body main part side at the base end of the arm cover 60, and the flexible member (three-phase cable 33) is disposed inside the right cover main body 61R from the opening portion 64a of the bulging portion 64.

[0112] With this configuration, the flexible member (three-phase cable 33) extending from the vehicle body main part side is disposed inside the arm cover 60 from the opening portion 64a of the bulging portion 64 at a portion overlapping the extension wall 41 in a side view. Therefore, the flexible member is easily disposed, and the movable range of the flexible member at the cover base end portion 61a is widened by the bulging portion 64.

[0113] In the above vehicle body structure, a through portion 65 is formed penetrating in the vehicle width direction at a portion overlapping the extension wall 41 in a side view in the bulging portion 64, and the through portion 65 is formed by cutting the periphery of the opening portion 64a of the bulging portion 64.

[0114] With this configuration, the flexible member extending from the vehicle body main part side is disposed inside the arm cover 60 through the bulging portion 64 and the through portion 65. Therefore, the flexible member is easily disposed, and the opening portion 64a is widened by the cutout-shaped through portion 65, so the movable range of the flexible member can be widened.

[0115] In the above vehicle body structure, the swing arm 20 is provided with a pair of left and right arm main bodies 50, the arm cover 60 is provided with a pair of left and right cover main bodies 61 covering the left and right arm main bodies 50, respectively, and a cover link portion 69 linking the base end sides of the left and right cover main bodies 61 to each other, and the opening portion 42 is formed with an outside accommodation space 42c1 accommodating the base end sides of the left and right cover main bodies 61 and an inside accommodation space 42d1 accommodating the cover link portion 69.

[0116] With this configuration, the opening portion 42 of the battery cover 40 is formed with the inside accommodation space 42d1 accommodating the cover link portion 69 inside the left and right of the arm cover 60 in addition to the outside accommodation space 42c1 accommodating the left and right cover main bodies 61 of the arm cover 60. Therefore, it is easy to provide a member such as a hugger fender at the cover link portion 69 of the arm cover 60 that swings together with the swing arm 20. That is, the cover link portion 69 of the arm cover 60 can be prevented from interfering with the battery cover 40 by the inside accommodation space 42d1.

[0117] In the above vehicle body structure, the extension wall 41 is formed in each of the pair of side edge portions 42a of the opening portion 42, and the reverse direction extension wall 43 extending from the upper edge portion 42b between the upper ends of the pair of side edge portions 42a to the opposite side of the rear wheel WR in the vehicle front-rear direction with a left-right width corresponding to the inner side storage space 42d1 is provided.

[0118] With this configuration, the reverse direction extension wall 43 extending to the opposite side of the rear wheel WR with a left-right width corresponding to the inner side storage space 42d1 is provided at the upper edge portion 42b of the opening portion 42 between the upper ends of the pair of side edge portions 42a. Thereby, the strength of the upper edge portion 42b of the opening portion 42 is suppressed from decreasing, and the inner side of the inner side storage space 42d1 is hidden by the reverse direction extension wall 43. Thereby, the appearance of the periphery of the opening portion 42 can be improved, and the intrusion of water, mud, and the like into the inner side of the battery case 40 is suppressed.

[0119] The present application is not limited to the above embodiment, and for example, although the battery case is exemplified as the cover member provided between the vehicle body member and the wheel, the type of the cover member is not particularly limited. Also, the shape and the like of the opening portion, the extension wall, the reverse direction extension wall, the penetration portion, and the bulging portion of the cover member are not limited to the embodiment.

[0120] The structure of the embodiment is an example in which the present application is applied to the periphery of the rear swing arm that supports the rear wheel, but the present application can also be applied to the periphery of the front swing arm that supports the front wheel. That is, the present application can be applied to a vehicle having a front fork that is telescopic, but can also be applied to a vehicle having a front swing arm that extends forward of the vehicle.

[0121] The structure of the embodiment is an example in which the present application is applied to an electric two-wheeled vehicle, but the present application can also be applied to a motorized two-wheeled vehicle having a prime mover including an internal combustion engine.

[0122] The vehicle body of the motorized two-wheeled vehicle of the embodiment has a vehicle body frame (vehicle body member) F that is integrated from a front wheel suspension portion (head pipe Fl) to a rear wheel suspension portion (pivot plate 12), but is not limited to this structure. For example, the vehicle body frame F can be composed of divided frame members (vehicle body members). For example, at least a part of a structure such as a battery case and a power unit can be included in the vehicle body member in addition to the frame members. In the case of an electric vehicle, the power unit includes an electric motor, and in the case of an internal combustion engine vehicle, the power unit includes an engine (internal combustion engine). Also, the power unit can include a transmission mechanism and a transmission.

[0123] The vehicle body structure of the embodiment can be applied to a straddle-type vehicle other than a motorized two-wheeled vehicle.

[0124] The above straddle-type vehicle includes all vehicles in which a driver rides astride a vehicle body, and includes not only motorized two-wheeled vehicles (including bicycles with a prime mover and scooter-type vehicles) but also three-wheeled vehicles (including vehicles with two rear wheels and one front wheel, in addition to vehicles with one rear wheel and two front wheels) or four-wheeled vehicles (four-wheeled carts and the like). Furthermore, the vehicle includes not only a scooter-type vehicle having a straddle space but also a vehicle having a straddle portion.

[0125] Furthermore, the structure in the above-described embodiment is one example of the present application, and the constituent elements of the embodiment can be replaced with known constituent elements or the like, and various changes can be made within the scope of the gist of the present application.

Claims

1. A vehicle body structure, characterized in that, have: Body component (F), which constitutes at least a part of the body body; A swing arm (20), which supports its base end (20a) on the vehicle body member (F) and is capable of swinging up and down, extends from the base end (20a) toward the front-rear direction of the vehicle and supports a wheel (WR) at its front end (20b); and A cover component (40) is disposed between the body component (F) and the wheel (WR) and is mounted on the body body. The vehicle body structure includes an arm cover (60) that is mounted on the swing arm (20) and covers the swing arm (20). The cover component (40) includes: An opening (42) that receives the base end (61a) of the arm cover (60), the base end (61a) covering the periphery of the base end (20a) of the swing arm (20); and An extension wall (41) extends from at least a portion of the periphery of the opening (42) toward the wheel (WR) in the vehicle longitudinal direction and overlaps with the end of the cover base (61a) in a side view.

2. The vehicle body structure according to claim 1, characterized in that, The vehicle body structure includes flexible members (33, 72) extending linearly from the side of the main body toward the inside of the arm cover (60). A through portion (65) extending along the vehicle width direction is formed at the portion of the end of the cover base (61a) that overlaps with the extended wall (41) when viewed from the side. The flexible member (72) passes through the through portion (65) and is disposed on the inside of the arm cover (60).

3. The vehicle body structure according to claim 1, characterized in that, The vehicle body structure includes flexible members (33, 72) extending linearly from the side of the main body toward the inside of the arm cover (60). A bulge (64) is formed at the portion of the end of the cover base (61a) that overlaps with the extension wall (41) when viewed from the side, protruding outward in the vehicle width direction. The bulge (64) forms an opening (64a) that opens toward the body of the vehicle. The flexible members (33, 72) are disposed on the inside of the arm cover (60) from the opening (64a) of the bulge (64).

4. The vehicle body structure according to claim 3, characterized in that, A through-hole (65) extending in the vehicle width direction is formed in the portion of the bulge (64) that overlaps with the extension wall (41) when viewed from the side. The through portion (65) is formed by cutting away the periphery of the opening (64a) of the bulge (64).

5. The vehicle body structure according to claim 1, characterized in that, The swing arm (20) has a pair of left and right arm bodies (50). The arm cover (60) includes a pair of left and right cover bodies (61) that cover the left and right arm bodies (50) respectively, and a cover connecting part (69) that connects the base ends of the left and right cover bodies (61) to each other. The opening (42) forms an outer receiving space (42c1) that receives the base end sides of the left and right cover bodies (61) and an inner receiving space (42d1) that receives the cover connecting part (69).

6. The vehicle body structure according to claim 5, characterized in that, The extension walls (41) are respectively formed on the left and right side edges (42a) of the opening (42). The upper edge (42b) between the upper ends of the side edges (42a) of the opening (42) extending to the left and right has a reverse-direction extending wall (43), which extends from the upper edge (42b) to the opposite side of the wheel (WR) in the vehicle front-rear direction with a left-right width corresponding to the inner receiving space (42d1).

7. The vehicle body structure according to any one of claims 1 to 6, characterized in that, The cover member (40) covers the vehicle driving electrical installation member (30) mounted on the vehicle body from the wheel (WR) side. The opening (42) overlaps with the electrical installation (30) in at least a portion in the vertical direction of the vehicle.

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