CN105501335B - Back structure of vehicle body - Google Patents

Abstract

The invention relates to a vehicle body rear structure in which a reduction in the number of parts is achieved. In the rear body structure with the rear fender (40) at the rear of the vehicle, the rear fender (40) has a fender main body (41) covering the top of the rear wheel (4), and a The handrail (42) for holding is integrally formed with the fender main body (41).

Description

rear body structure

technical field

The present invention relates to the rear structure of a vehicle body.

Background technique

Conventionally, as a vehicle body rear structure, there exists a vehicle body rear structure disclosed by patent document 1, for example. It is provided with a rear handrail for the passengers to hold at the rear of the motorcycle.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2012-126375

Contents of the invention

However, reduction in the number of parts has been desired in the past. This expectation is true even for functionally different components from each other.

It is therefore the object of the invention to achieve a reduction in the number of components in the construction of the rear of the body.

As a solution to the above-mentioned problems, the invention described in claim 1 is a vehicle body rear structure, which includes a rear fender 40 at the rear of the vehicle, and is characterized in that the rear fender 40 has a The upper fender main body 41 and the armrest 42 that can be held by the occupant are integrally formed with the fender main body 41 .

The invention described in claim 2 is characterized in that the rear fender 40 is provided with a left armrest 42L arranged on the left side with the vehicle body left and right centerline CL interposed therebetween, and a left armrest 42L arranged at the right side with the vehicle body left and right centerline CL interposed therebetween. The right armrest 42R on the side, the left and right armrests 42L, 42R are integrally formed with the fender main body 41 .

The invention described in claim 3 is characterized in that an opening 43 h facing the rear wheel 4 in the radial direction is formed in the rear fender 40 .

The invention described in claim 4 is characterized in that a rear turn signal lamp 52 is built into the rear fender 40 .

According to the invention described in claim 1, by integrally forming the armrest and the fender main body, it is possible to reduce the number of parts compared to the case where the armrest and the fender main body are separated. In addition, the rigidity of the rear fender can be improved by integrating a relatively thin member, the fender main body, under the high-rigidity armrest.

According to the invention described in claim 2, by integrally forming the left and right armrests and the fender main body, the number of parts can be reduced compared to the case where the left and right armrests and the fender main body are separated.

According to the invention described in claim 3 , by forming the opening facing the rear wheel in the radial direction in the rear fender, it is possible to reduce the weight of the rear fender according to the portion where the opening is formed.

According to the invention described in claim 4, since the rear turn signal is built into the rear fender, compared with the case where the rear turn signal is installed outside the rear fender, it is possible to reduce the inconvenience caused by subassembly (subassemble). assembly hours.

Description of drawings

Fig. 1 is a left side view of a motorcycle according to the embodiment.

Fig. 2 is a plan view of the aforementioned motorcycle.

Fig. 3 is a left side view of the rear portion of the aforementioned motorcycle.

Fig. 4 is a plan view of the rear portion of the motorcycle with the seat removed.

Fig. 5 is a left side view of the rear fender of the aforementioned motorcycle.

Fig. 6 is a plan view of the aforementioned rear fender.

Fig. 7 is a front view of the aforementioned rear fender.

Fig. 8 is a rear view of the aforementioned rear fender.

Explanation of reference signs

4 rear wheels

40 rear fender

41 Fender body

42 Handrails

42L left armrest

42R right armrest

43h opening

52 rear turn signal

CL Body left and right centerline

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, unless otherwise specified, the orientations of front, rear, left, and right in the following description are the same as those in the vehicle described below. In addition, an arrow FR indicating the front of the vehicle, an arrow LH indicating the left side of the vehicle, and an arrow UP indicating the upward direction of the vehicle are shown at appropriate positions in the drawings used in the following description. A line CL in the figure indicates the left and right centerlines of the vehicle body.

First, the configuration of a motorcycle 1 according to the embodiment will be described with reference to FIGS. 1 and 2 . Fig. 1 is a left side view of a motorcycle 1 according to the embodiment. FIG. 2 is a plan view of the aforementioned motorcycle 1 .

As shown in FIGS. 1 and 2 , a small motorcycle 1 includes a joystick 2 , front wheels 3 steered by the joystick 2 , and rear wheels 4 driven by a swing-type power unit 8 .

Steering components including the joystick 2 and the front wheels 3 are pivotally supported on the head pipe 11 at the front end of the vehicle frame 10 in a steerable manner. The front lower side of the power unit 8 is pivotally supported on the lower rear side of the body frame 10 so as to be able to swing up and down. Between the joystick 2 and the seat 5 for the occupant supported on the rear part of the vehicle body, a pedal floor 28 for placing the occupant's feet is provided.

For example, the vehicle frame 10 is formed by integrally combining various steel materials by welding or the like. The frame 10 includes: a head pipe 11; a main frame 12 extending obliquely rearward and downward from the head pipe 11; left and right side frames 13 extending rearward from the lower side of the main frame 12, and then obliquely from a middle portion 13m. Rear and upward extension; left and right rear frames 14, which extend from the upper ends of the left and right side frames 13 to the rear and upward; left and right pivot plates 15, which are erected with pivots 15a along the vehicle width direction attached to the middle part 13m; The middle transverse frame 16 is erected between the left and right side frames 13 at the upper rear of the middle portion 13 m; and the rear transverse frame 17 (refer to FIG. 4 ) is erected between the rear ends of the left and right rear frames 14 .

The lower front portion of the power unit 8 is supported by the pivot shaft 15 a via a link 18 so as to be able to swing up and down.

The power unit 8 is a swing-type power unit in which an engine 8a disposed at the front and a transmission 8b disposed at the rear left are integrated. The rear suspension 6 is interposed between the power unit 8 and the rear portion of the vehicle frame 10, and a unit swing type rear suspension structure is formed at the rear portion of the vehicle body.

An air cleaning unit 7 is installed above the power unit 8 . A throttle body (not shown) connected to the engine 8a is attached to the front end of the air cleaning unit 7 .

A seat 5 on which a driver sits is disposed above the power unit 8 . The seat 5 extends forward and backward, and integrally includes a main seat 5 a on which a driver sits, and a rear seat 5 b on which a passenger sits. Below the seat 5, between the front wheel 3 and the rear wheel 4, a pedal floor 28 for the driver to place his or her feet is provided. A leg shield 22 extending up and down is provided in front of the seat 5 .

In front of the seat 5 and behind the leg shield 22 is formed a foot passage space 9 through which the passenger's feet pass when getting on and off the vehicle. The driver passes the foot through the foot space 9 , sits on the seat 5 and puts the foot on the pedal floor 28 to get on the motorcycle 1 .

A storage box 50 is arranged under the front portion of the seat 5 , and a fuel tank 51 is arranged under the rear portion of the seat 5 . The storage box 50 is supported by the center transverse frame 16 and the left and right rear frames 14 . The fuel tank 51 is supported by the left and right rear frames 14 .

The vehicle frame 10 is covered by a body cover 20 . The body cover 20 includes: a front cover 21 covering the front of the vehicle frame 10; a leg guard 22 covering the front of the driver's legs; an under cover 23 covering the side of the pedal floor 28; Interposed between the left and right pedal bottom plates 28L, 28R, and forming a tunnel shape convex upward; the left and right side covers 24, which are connected to the left and right lower sides of the bottom plate center cover 30, and cover the front and rear central parts of the frame 10; The side cover 25 is connected to the upper rear of the left and right side covers 24 and covers the rear of the vehicle frame 10; The body cover 20 is attached to the vehicle body frame 10 by attachment members such as bolts.

A rear fender 40 is provided at the rear of the vehicle. The rear fender 40 includes a fender main body 41 covering the upper side of the rear wheel 4 and an upper fender 46 (see FIG. 4 ), and covers the upper rear side of the rear wheel 4. The rear fender 43 and the armrest 42 that the passenger can hold. The upper fender 46 shown in FIG. 4 constitutes the rear fender 40 and is formed to cover the upper side of the rear wheel 4. As shown in FIG. The upper fender 46 has a bulging portion 46a that swells upward along the outer peripheral surface of the rear wheel 4 .

In addition, reference numeral 57 denotes a handle guard that protects the joystick 2 from the front and side, reference numeral 56 denotes a front fender covering the top of the front wheel 3, and reference numeral 52 denotes a rear fender that is built into the rear fender. Reference numeral 53 denotes a tail lamp, a reference numeral 54 denotes an instrument panel, and a reference numeral 55 denotes a muffler.

Next, the structure of the rear part of the motorcycle 1 which concerns on embodiment is demonstrated using FIG.3 and FIG.4. FIG. 3 is a left side view of the rear portion of the aforementioned motorcycle 1 . FIG. 4 is a plan view of the rear portion of the motorcycle 1 with the seat 5 removed. In addition, in FIG. 4, illustration of the fuel tank 51 is abbreviate|omitted for convenience of description.

As shown in FIGS. 3 and 4 , left and right brackets 14 b for supporting the armrest 42 and a rear pillar 19 are joined to the rear ends of the left and right rear frames 14 by welding or the like.

The left and right brackets 14b are formed in a U-shaped cross-section that opens downward, and are coupled to the left and right rear frames 14 with their flat surfaces facing upward. The left and right brackets 14b support the front end attachment portions 42f of the left and right armrests 42L, 42R at multiple locations (for example, two locations in this embodiment) via fastening members such as bushings and bolts. In a side view of FIG. 3 , the rear pillars 19 extend obliquely in a straight line from the rear ends of the left and right rear frames 14 to the rear and upward. Left and right armrest support portions 19 a are provided at rear end portions of the left and right rear pillars 19 . The left and right armrest support parts 19a support the rear end attachment parts 42g of the left and right armrests 42L, 42R at one place. In addition, the left-right armrest support part 19a may support the rear-end attachment part 42g of the left-right armrest 42L, 42R at several places.

As shown in FIG. 4 , left and right brackets 14 a for supporting a fuel tank 51 protruding inward in the vehicle width direction are provided on the left and right rear frames 14 . The left and right brackets 14a support the front portion of the fuel tank 51 at multiple locations (for example, two locations in this embodiment) via fastening members such as bolts.

The rear transverse frame 17 has a curved portion, and the curved portion forms a U-shape opened forward in a plan view of FIG. 4 . Fuel tank support portions 17 a are provided at both left and right end portions of the rear cross frame 17 , and fuel tank support brackets 17 b protrude rearward. The rear cross frame 17 supports the rear portion of the fuel tank 51 at multiple locations (for example, six locations in this embodiment) via the fuel tank support portion 17a and the bracket 17b via fastening members such as bolts.

In addition, a bracket (not shown) for supporting a storage box protruding inward in the vehicle width direction is provided in front of the left and right brackets 14a in the left and right rear frames 14 . The left and right brackets for supporting the storage box support the left and right attachment parts 50a, 50b at the rear of the storage box 50 via fastening members such as bolts.

Next, the structure of the rear fender 40 is demonstrated using FIGS. 5-8.

FIG. 5 is a left side view of the rear fender 40 of the aforementioned motorcycle 1 . FIG. 6 is a plan view of the aforementioned rear fender 40 . FIG. 7 is a front view of the aforementioned rear fender 40 . FIG. 8 is a rear view of the aforementioned rear fender 40. As shown in FIG. In addition, in Figs. 5 to 8 , illustration of the upper fender 46 (refer to Fig. 4 ) constituting the rear fender 40 is omitted for convenience of description.

The rear fender 40 is provided with: a fender main body 41 formed in a U-shape open to the front as viewed from above in FIG. A fender 43 provided at the rear end of the fender main body 41; a front extension 44 extending forward from the front ends of the left and right armrests 42L, 42R; and a left and right extension 45 provided at the fender main body The front of 41 left and right. The rear fender 40 (except the left and right armrests 42L, 42R.) is formed in a curved arc shape protruding upward in the side view of FIG. CL has a left-right symmetrical shape and a U-shape that opens forward.

The rear fender 40 is integrally formed by injection molding of a resin material or the like. The rear fender 40 is supported by the vehicle body by attaching the fender main body 41 and the left and right armrests 42L, 42R to the vehicle frame 10 (see FIG. 1 ) with fastening members such as bolts.

The fender main body 41 includes left and right side portions 41a extending obliquely forward and downward from the armrest 42 in a side view of FIG. .

In the side view of FIG. 5 , the left and right side portions 41 a of the fender main body 41 are formed in a sharp shape with a smaller vertical width as they get closer to the front. The left and right extensions 45 extend outward in the vehicle width direction.

The connecting portion 41b of the fender main body 41 includes left and right pillars 41c extending obliquely downward and slowly from the armrest 42 , and connecting pieces 41d connecting left and right rear ends of the left and right pillars 41c.

Left and right recessed portions 41s that are recessed inward in the vehicle width direction are formed on the left and right pillar portions 41c of the connecting portion 41b of the fender main body 41 . Left and right rear turn lamps 52 (see FIG. 3 ), such as LEDs, are embedded in the left and right concave portions 41 s. The left and right recesses 41s have a size capable of embedding the left and right rear turn lamps 52 (see FIG. 3 ). The left and right recesses 41 s are formed in a trapezoidal shape with rounded corners in a side view of FIG. 5 , and are inclined so as to be positioned lower as they go toward the rear, and to be positioned inward in the vehicle width direction as they go toward the lower side in a rear view of FIG. 8 . way tilted.

The left and right armrests 42L, 42R include an armrest main body 42a that can be held by a passenger, a front connecting portion 42b connecting the front end of the armrest main body 42a to the fender main body 41 , and a front connecting portion 42b connecting the rear end of the armrest main body 42a to the fender main body 41 . The rear connecting portion 42c and the inner connecting portion 42d.

The armrest main bodies 42a of the left and right armrests 42L, 42R are gradually inclined and linearly extended so as to be positioned higher toward the rear in the side view of FIG. The width direction inside form extends obliquely.

The front connecting portion 42b of the left and right armrests 42L, 42R is formed so as to be thicker toward the fender main body 41 side. In addition, the rear connecting portion 42c and the inner connecting portion 42d of the left and right armrests 42L, 42R are also formed so as to be thicker toward the fender main body 41 side. Thereby, the effect of raising the support rigidity of the left and right armrests 42L and 42R is obtained. Therefore, even if the left and right armrests 42L, 42R are integrated with the fender main body 41, the occupant can firmly hold the left and right armrests 42L, 42R.

In a side view of FIG. 5 , the rear fender 43 is formed to extend obliquely rearward and downward from the rear end of the connection portion 41 b of the fender main body 41 . The rear fender 43 is formed in a V-shape protruding rearward in a plan view of FIG. 6 , and in a V-shape protruding downward in a front view of FIG. 7 and a rear view of FIG. 8 . The rear fender 43 includes a rear portion 43b forming the rear end of the rear fender 40, and a rear connecting portion 43a connecting the front end of the rear portion 43b to the rear end of the connecting portion 41b of the fender main body 41. The rear connecting portion 43a has a shape that bulges outward in the vehicle width direction from the rear portion 43b, and also functions as a mounting portion for a license plate (not shown).

As shown in FIGS. 6 to 8 , an opening 43 h is formed in the rear fender 40 . The opening 43 h has a rear end formed by the inner edge in the vehicle width direction of the rear fender 43 and the connecting portion 41 b of the fender main body 41 . The outline surrounded by the rim, and opens in the front, rear, up and down directions in a manner opposite to the rear wheel 4 in the radial direction. In addition, in the vehicle body mounted state of the rear fender 40 shown in FIG. 3 , the rear fender 40 is formed with an opening 41h having an inner edge in the vehicle width direction of the left and right column portions 41c of the connecting portion 41b and the rear fender 40. The contour surrounded by the front end edge of the connecting piece 41d is not open.

The left and right front extensions 44 have a U-shaped cross-sectional shape opened inward in the vehicle width direction in the front view of FIG. The predetermined intervals extend linearly and gradually inclined from the front end of the front connecting portion 42b of the left and right armrests 42L, 42R so as to be lower toward the front side. The left and right front extensions 44 contact the rear lower edges of the left and right rear side covers 25 to form openings 44h in the vertical direction when the rear fender 40 is mounted on the vehicle body shown in FIG. 3 . Thereby, there is an effect of improving the rectification property of the traveling wind flowing along the left and right rear side covers 25 and the rear fender 40 .

The left and right extensions 45 have a thin plate shape, and are inclined gradually along the front lower ends of the left and right side parts 41 a of the fender main body 41 so as to be lower toward the front side in a side view of FIG. 5 . The left and right extensions 45 are covered by the left and right rear side covers 25 from the outside in the vehicle width direction together with the front ends of the left and right side parts 41 a of the fender main body 41 in the body-mounted state of the rear fender 40 shown in FIG. 3 .

As described above, in the present embodiment, in the rear body structure provided with the rear fender 40 at the rear of the vehicle, the rear fender 40 includes the fender main body 41 covering the upper side of the rear wheel 4, and the rear fender body 41 which can be seated on. An armrest 42 for a person to hold. The armrest 42 is integrally formed with the fender main body 41 .

According to this configuration, by integrally forming the armrest 42 and the fender main body 41 , it is possible to reduce the number of parts compared to the case where the armrest 42 and the fender main body 41 are separated. In addition, the rigidity of the rear fender 40 can be increased by integrating a relatively thin member, the fender main body 41 , at the lower portion of the armrest 42 having high rigidity.

Furthermore, by integrally forming the left and right armrests 42L, 42R and the fender main body 41 , it is possible to reduce the number of parts compared to the case where the left and right armrests 42L, 42R and the fender main body 41 are separated.

In addition, by forming the opening 43h facing the rear wheel 4 in the radial direction in the rear fender 40, the weight of the rear fender 40 can be reduced according to the portion where the opening 43h is formed.

In addition, by incorporating the rear turn signal lamp 52 in the rear fender 40 , compared with the case where the rear turn signal lamp 52 is mounted outside the rear fender 40 , it is possible to reduce assembly man-hours due to subassembly.

In addition, in the above-mentioned embodiment, the example in which the left and right armrests 42L, 42R and the fender body 41 are integrally formed on the rear fender 40 has been described, but the present invention is not limited thereto. For example, when the armrest 42 is provided on a part of the rear fender 40 such as one of the left and right sides of the rear fender 40 , the armrest 42 may be integrally formed with the fender main body 41 .

In addition, in the above-mentioned embodiment, the example in which the upper fender 46 and the fender main body 41 are separated was given and described, but it is not limited to this, and the upper fender 46 and the fender main body may be separated. 41 is integrally formed.

In addition, in the above-mentioned embodiment, the example in which the fuel tank 51 is disposed under the rear portion of the seat 5 was given and described, but the present invention is not limited thereto. For example, the fuel tank 51 may be disposed below the floor center cover 30 .

In addition, the present invention is not limited to the above-mentioned embodiments. For example, the straddle-type vehicle includes all vehicles in which the driver straddles the vehicle body, not only motorcycles (including bicycles with prime movers and small vehicles). , also includes three-wheeled vehicles (in addition to front-wheeled and rear-two-wheeled vehicles, also includes front-two-wheeled and rear-wheeled vehicles) or four-wheeled vehicles.

In addition, the structure in the above-mentioned embodiment is an example of the present invention, and the components of the embodiment can be replaced with known components, etc., and various changes can be made without departing from the gist of the present invention.

Claims (7)

1. a kind of back structure of vehicle body, has the rear mudguard (40) of vehicle rear, the feature of the back structure of vehicle body exists In,

The rear mudguard (40) have the top of covering rear-wheel (4) mud guard main body (41) and can be for passenger The handrail (42) of holding,

The handrail (42) and the mud guard main body (41) are formed integrally,

The handrail (42) have can for passenger hold armrest body (42a), will be before the armrest body (42a) Hold the preceding linking part (42b) being connected with the mud guard main body (41), by the rear end of the armrest body (42a) and the gear mud Plate main body (41) connected rear linking part (42c) and inside linking part (42d),

Also there are front extension (44), have under main view to the section shape of the U-shaped of vehicle-width direction inside, And defined interval is separated from the upper end of the side (41a) of the mud guard main body (41) under side view, from the handrail (42) front end of the preceding linking part (42b) rise by more lean on front side be located below in a manner of slowly obliquely linearly prolong It stretches,

After the front extension (44) is connected to rear side cover (25) under the vehicle body installation condition of the rear mudguard (40) Lower edge and form opening (44h) along the vertical direction.

2. back structure of vehicle body according to claim 1, which is characterized in that

The preceding linking part (42b) of the handrail (42) is formed as more bigger to mud guard main body (41) side thickness, institute The rear linking part (42c) and the inside linking part (42d) for stating handrail (42) are formed as more to the mud guard main body (41) side thickness is bigger.

3. back structure of vehicle body according to claim 1, which is characterized in that

The rear mudguard (40) is installed on vehicle frame (10) by secure component via the handrail (42).

4. back structure of vehicle body according to claim 1, which is characterized in that

The handrail (42) has front end mounting portion (42f) and rear mounting portion (42g), via the front end mounting portion (42f) Vehicle frame (10) are installed on the rear mounting portion (42g).

5. back structure of vehicle body according to claim 1, which is characterized in that

The rear mudguard (40) be equipped with across vehicle body or so center line (CL) be configured at left side left handrail (42L) and The right handrail (42R) on right side is configured at across the vehicle body or so center line (CL),

The left and right handrail (42L, 42R) and the mud guard main body (41) are formed integrally.

6. back structure of vehicle body according to claim 1, which is characterized in that be formed in the rear mudguard (40) along diameter To the opening (43h) opposite with the rear-wheel (4).

7. back structure of vehicle body according to any one of claim 1 to 6, which is characterized in that in the rear mudguard (40) rear directional (52) are built-in with.