CN108698665B

CN108698665B - Bottom cover structure of motorcycle

Info

Publication number: CN108698665B
Application number: CN201680080945.6A
Authority: CN
Inventors: S.里姆帕纳柴庞贡; 佐藤亮辅; 苏吉特·伊姆贾波恩; P.波萨瓦特; T.玛尼塔亚古尔; 金泽泉
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2016-03-29
Filing date: 2016-03-29
Publication date: 2020-02-14
Anticipated expiration: 2036-03-29
Also published as: MY189077A; WO2017171661A1; JP6646344B2; JP2019507705A; PH12018501534A1; CN108698665A

Abstract

The present invention discloses a bottom cover structure 1 for a motorcycle 10 including a pedal 43, comprising: a bottom cover 46 disposed below the step 43; and an empty space 48 interposed between the step 43 and the bottom cover 46. The bottom cover 46 has a light guide portion 60 configured to guide sunlight into the vacant space 48 between the bottom cover 46 and the step 43.

Description

Bottom cover structure of motorcycle

Technical Field

The invention relates to a bottom cover structure of a motorcycle.

Background

A bottom cover structure of a scooter type motorcycle is known which includes a battery and a wire harness between a step on which a rider's foot is placed and a bottom cover disposed below the step, as disclosed in JP4108222B 2.

JP4108222B2 also discloses that there is an empty space between the bottom cover and the step. Since there are places where small animals (such as mice and insects) like darkness, sometimes the small animals enter the empty space between the bottom cover and the step plate. In order to prevent small animals from entering the empty space, many parts must be provided for the bottom cover so that small animals do not enter the empty space.

Unfortunately, if these components are provided for the bottom cover, the complexity of the structure of the bottom cover and the manufacturing cost may be increased. Accordingly, it has recently been desired to develop a bottom cover structure of a motorcycle to reduce complexity and manufacturing costs.

Reference list

Patent document

PTL 1: japanese patent laid-open No. JP4108222B2

Disclosure of Invention

An object of the present invention is to provide a bottom cover structure for a motorcycle, which can be simple and reduce manufacturing costs by forming a light guide portion that guides sunlight into an empty space between the bottom cover and a pedal.

In order to achieve the above object, an embodiment of the present invention provides a bottom cover structure for a motorcycle, including: a bottom cover disposed below the step; and an empty space interposed between the step panel and the bottom cover, wherein the bottom cover has at least one light guide portion configured to guide sunlight into the empty space between the bottom cover and the step panel.

Generally, small animals such as mice and insects are active at night, liking dark places and avoiding lighted places.

According to an embodiment of the present invention, the bottom cover has at least one light guide portion configured to guide sunlight into an empty space between the bottom cover and the step plate, the sunlight entering the empty space from the light guide portion. Thus, the likelihood of small animals entering and residing in the empty space between the bottom cover and the deck may be reduced. As a result, the bottom cover structure can be simple and reduce the manufacturing cost, and have a larger vacant space as the storage space, only by providing the light guide portion.

In the bottom cover structure of the embodiment of the invention, the light guide portion includes one or more openings provided to the bottom cover, and each opening is formed with an upright wall that is upright into the empty space from a rear end of the opening.

According to the embodiment of the present embodiment, since each opening is formed with the upright wall erected into the vacant space from the rear end of the opening, water or mud rolling up at the front of the motorcycle can be made to adhere to the upright wall or walls. Thus, the possibility of mud or water entering the vacant space through the opening can be reduced.

In the undercover structure of the embodiment of the invention, the upright wall is inclined in the front direction of the motorcycle.

According to the embodiment of the present embodiment, since the upright walls are inclined in the front direction of the motorcycle, water or mud temporarily attached to one or more of the upright walls can be discharged to the outside of the motorcycle.

In addition, since the standing wall can be formed so as to cover the opening, it is possible to maintain the area of the opening and to cause water or mud to adhere to the standing wall. Therefore, water or mud rolling up at the front of the motorcycle can be suppressed from entering the vacant space.

In the bottom cover structure of the embodiment of the invention, an upper edge portion of the upright wall includes a plurality of sharp protrusions.

According to the embodiment of the present embodiment, the possibility of small animals entering the vacant space can be reduced due to the plurality of sharp protrusions. In addition, it is difficult for small animals to stay on the upper edge portion of the upright wall.

In the bottom cover structure of the embodiment of the invention, the upright wall is provided with at least one side wall extending from at least one side edge of the upright wall toward the front end of the opening.

According to the embodiment of the present embodiment, it is possible to more efficiently discharge water or mud adhering to the upright wall to the outside of the motorcycle. In addition, since the side walls are formed to become gradually lower from the side edges of the standing walls toward the front end of the opening, the bottom cover structure efficiently guides sunlight into the vacant space.

In the bottom cover structure of the embodiment of the invention, the rear end of the opening is disposed at a position higher than the front end when viewed from the side of the motorcycle.

According to the embodiment of the present embodiment, the bottom cover structure further efficiently prevents water or mud that has been rolled up at the front of the motorcycle from entering the vacant space, because water or mud is difficult to enter the opening.

In the undercover structure of the embodiment of the invention, the engine of the motorcycle is disposed at a rear position in the undercover, and wherein the height of the upright wall is gradually reduced toward the rear side of the undercover.

According to the embodiment of the present embodiment, since the upright walls are arranged such that the height of the upright walls gradually decreases toward the rear side of the undercover, the undercover structure further efficiently prevents water or mud that has rolled up at the front of the motorcycle from entering the vacant space. Also, in the running state, a sufficient intake air flow rate can be ensured. As a result, the cooling efficiency of the engine can be improved.

In the bottom cover structure of the embodiment of the invention, the main frame and the battery disposed at one of right and left sides of the main frame are accommodated in the empty space, and wherein each opening is disposed in a side opposite to the one side.

In general, since small animals live in a large space among vacant spaces of a motorcycle, the small animals tend to live on the side of the vacant spaces where a battery is not accommodated.

According to the embodiment of the present embodiment, since more openings are disposed at the side opposite to the battery with respect to the main frame, the bottom cover structure can prevent small animals from living at the side opposite to the battery in the vacant space by illuminating from the outside through the openings.

In the bottom cover structure of the embodiment of the invention, at least one opening is disposed at the center of the empty space at the front of the battery.

According to an embodiment of the present embodiment, sunlight sufficiently enters the vacant space.

In the undercover structure of the embodiment of the invention, the rear end of the opening extends rearward of the motorcycle from a position on a center side of the undercover to an outside of the undercover.

Even in the case of motorcycle running, the traveling air is blown toward the opening of the bottom cover. According to the embodiment of the present embodiment, since the flow of the traveling air is stable on the outside of the motorcycle, it is possible to more efficiently reduce the possibility of water or mud entering the vacant space through the opening.

Drawings

The principles of the present invention and its advantages will become apparent in the following description, when considered in conjunction with the accompanying drawings, in which:

FIG. 1 is a left side view of a motorcycle having a bottom cover structure according to an embodiment of the present invention;

FIG. 2 is a bottom view of the bottom cap structure of FIG. 1;

FIG. 3 is a cross-sectional view of the bottom cap structure taken along line III-III of FIG. 2;

FIG. 4 is a cross-sectional view of the bottom cap structure taken along line IV-IV of FIG. 2;

FIG. 5 is a cross-sectional view of the bottom cap structure taken along line V-V of FIG. 2;

FIG. 6 is a cross-sectional view of the bottom cap structure taken along line VI-VI of FIG. 2;

FIG. 7 is a cross-sectional view of the bottom cap structure taken along line VII-VII of FIG. 2;

fig. 8 is a bottom left side view of the bottom cover structure.

Detailed Description

Hereinafter, an embodiment of the present invention will be described in detail with reference to fig. 1 to 8. In the following detailed description, relative positional terms such as "Front (FR)", "rear (RR)", "Right Side (RS)" and "Left Side (LS)" correspond to directions considered from the vantage point of a vehicle operator sitting on a driver's seat and facing forward.

An embodiment of the present invention discloses a bottom cover structure for a motorcycle including a pedal, the bottom cover structure including: a bottom cover arranged below the pedal; and an empty space disposed between the step and the bottom cover. Further, the bottom cover has a light guide portion configured to guide sunlight into an empty space between the bottom cover and the step.

As shown in fig. 1, the motorcycle 10 is a scooter type vehicle. The motorcycle 10 includes, as its main components, a head pipe 18, a main frame 11 inclined downward rearward from the head pipe 18, a pair of

rear frame pipes

12a, 12b extending rearward from end portions of a pivot shaft 12c, respectively, a cross member 13 including a front cross member 13a and a rear cross member 13b spanning the

rear frame pipes

12a, 12b, a front fork (not shown) mounted on the head pipe 18, a front wheel FW mounted on the front fork for the front tire FT, a handle 19 attached to the front fork, a swingable power unit 30 vertically swingably mounted on the rear portion of the main frame 11, a rear wheel RW mounted on the swingable power unit 30 for a rear tire RT, a rear cushion portion 21 mounted on a rear end portion of the swingable power unit 30 in a suspended manner, and seats 14 disposed on the front cross member 13a and the rear cross member 13b such that the seats 14 can be opened and closed.

The main frame 11 includes a lower frame portion 11d inclined downwardly rearward from the head pipe 18, a floor frame portion 11f bent substantially horizontally from a rear end of the lower frame portion 11d and extending rearward, and a main frame cross pipe 11c having an intermediate portion fixed to a rear end of the floor frame portion 11f at a right angle in a horizontal plane. The lower frame portion 11d and the floor frame portion 11f are continuously formed together.

The center lines of the lower frame portion 11d and the floor frame portion 11f correspond to the center line of the motorcycle 10 when viewed from above. As shown in fig. 2 and 3, the

floor posts

22a, 22b are configured to extend forwardly from end portions of the main frame cross tube 11c, respectively. The floor stays 22a, 22b are formed symmetrically with respect to the center line of the motorcycle 10.

In the present embodiment, the material of the main frame 11 and the

rear frame pipes

12a, 12b is steel, but is not limited to aluminum alloy or the like.

The swingable power unit 30 includes a belt converter cover, a cylinder head cover, and a bellows ventilation duct (not shown). The swingable power unit 30 is constituted by an engine 36 and a continuously variable transmission (not shown) that is located on the left side of the center line of the motorcycle 10. The cylinders of the engine 36 are arranged to project between the front portions of the

rear frame pipes

12a, 12b and to be inclined in a substantially horizontal direction.

The continuously variable transmission is provided inside the belt converter cover 31. The rear wheels RW are directly rotatably and journalled to the rear of the continuously variable transmission. Specifically, two pulleys are provided inside the belt converter cover 31. Two pulleys are fixed to the axes of the drive shaft and the rear wheels RW, and the belt is configured to restrain the pulleys to provide the driving force.

The motorcycle 10 is covered with several covers. The covers include a front cover 40 that covers the front of the head pipe 18, an inner cover 41 that covers the rear of the front cover 40 and includes a pocket (not shown) that stores a rider's contents, a leg shield 42 that covers the front fork and front lower portion of the motorcycle 10 to protect the rider's legs, a footboard 43 configured to cover the floor stays 22a, 22b for the driver to place his or her feet, a pair of left and right side covers 44a, 44b (not shown) that include side structures disposed under the seat 14 to cover the motorcycle, a front fender 45 that covers the front wheel FW, a bottom cover 46 disposed under the footboard 43, and a rear fender 47 that covers the upper portion of the rear wheel RW.

In the present embodiment, the front cover 40, the inner cover 41, the leg shield 42, the pedal 43, the side covers 44a, 44b, the front fender 45, the bottom cover 46, and the rear fender 47 are plastic, but not limited to aluminum alloy, steel, or the like.

As shown in fig. 1, a bottom cover 46 extends rearward from the leg shield 42 and the front cover 40, and covers the engine 36 so as to cover and protect a battery 50, a plurality of wiring harnesses 52, and the like, which are provided under the step 43. The bottom cover 46 is provided below the step 43 and is removably mounted on the lower surface of the step 43.

As shown in fig. 2 to 8, the bottom cover 46 includes a left bottom cover side wall 46a, a right bottom cover side wall 46b, and a bottom cover bottom surface member 46 c. The bottom cover 46 has an almost U-shaped widthwise cross section.

To accommodate the battery 50, the wire harness 52, and the main frame 11, an empty space 48 is formed inside the bottom cover 46 by the left and right bottom

cover side walls

46a, 46b, the bottom cover bottom surface member 46c, and the step 43. The main frame is located at the center of the U-shaped widthwise cross section of the bottom cover 46. The battery 50 is located on the right side of the main frame in the vacant space 48. Further, the battery 50 may be located at the left side of the main frame in the vacant space 48.

As shown in fig. 2 to 8, the bottom cover structure 1 including the bottom cover 46 and the vacant space 48 has four openings provided in the bottom cover bottom surface member 46c as light guide portions 60 configured to guide sunlight into the vacant space 48 between the bottom cover 46 and the step 43. In the present embodiment, the number of openings is four, but is not limited to one or the other.

The light guide portion 60 includes: a first opening 61 in a central portion of the bottom cover 46 at the front of the bottom cover 46, a second opening 62 as a second opening from the front of the bottom cover 46, a third opening 63 as a third opening from the front of the bottom cover 46, and a fourth opening 64 as a fourth opening from the front of the bottom cover 46. Each opening is formed in a substantially rectangular shape. In the present embodiment, each opening is formed in a substantially rectangular shape, but is not limited to a semicircular shape, a semi-annular shape, an elliptical shape, a partial polygonal shape, and the like.

Rear ends 61b, 62b, 63b, 64b of the

openings

61, 62, 63, 64 extend from a position on the center side of the bottom cover 46 toward the rear of the motorcycle to the outside of the bottom cover 46. The

openings

61, 62, 63, 64 of the bottom cover 46 are formed away from the battery 50. In the embodiment, the

openings

62, 63, 64 are arranged on the left side opposite to the right side of the main frame 11 to prevent the small animals from entering the vacant space 48.

As an example, the configuration of the light guide section 60 is explained by using the first opening 61 and the second opening 62. The third opening 63 and the fourth opening 64 are similarly formed with respect to the standing wall and the side wall.

As shown in fig. 5 to 7, the first opening 61 is formed with an upright wall 61a that is upright from a rear edge 61b of the first opening 61 into the vacant space 48. In addition, the second opening 62 is formed with an upright wall 62a that is upright from a rear end 62b of the second opening 62 into the vacant space 48.

The

upright walls

61a, 62a are inclined in the front direction of the bottom cover 46. As the position of the opening is away from the front of bottom cover 46, the angle of

upright walls

61a, 62a to the ground decreases. Further, the heights of the opposite

rear ends

61b, 62b of the

upright walls

61a, 62a are gradually reduced toward the rear of the bottom cover 46.

The

upright walls

61a, 62a have

upper edge portions

61c, 62c, respectively, on the side opposite the

openings

61, 62. The

upper edge portions

61c, 62c include a plurality of sharp projections, respectively, to prevent small animals from entering the vacant space 48.

The standing wall 61a is provided with

side walls

61d, 61d extending from

side edges

61e, 61e of the standing wall 61a toward the front end 61 f. In addition, the standing wall 62a is provided with

side walls

62d, 62d extending from

side edges

62e, 62e of the standing wall 62a toward the front end 62 f. Further, the upright wall 61a (62a, 63a, 64a) may be provided with one of the side walls 61d (62d, 63d, 64d) to prevent water or slurry from entering the vacant space 48.

As shown in fig. 7, which clearly shows the height positions of the front end 61f and the rear end 61b of the opening 61 by using the horizontal line HL, the rear end 61b is disposed at a position higher than the front end 61f when viewed from the side of the motorcycle 10 in order to prevent water or mud from entering the vacant space 48. In addition, the rear ends 62b, 63b, 64b are provided at positions higher than the

front ends

62f, 63f, 64f, respectively, when viewed from the side of the motorcycle 10.

Next, the advantages obtained by the bottom cover structure 1 of the motorcycle 10 including the pedals 43 according to the embodiment of the present invention will be described in detail.

In the case of the motorcycle stopped state, since sunlight enters the vacant space 48 from the light guide portion 60, the possibility that a small animal enters and lives in the vacant space 48 between the bottom cover 46 and the step panel 43 can be reduced.

In addition, each opening is formed with an upright wall that is erected into the vacant space 48 from the rear end of the opening, and the upper edge portion of the upright wall includes a plurality of sharp projections. Therefore, it is difficult for small animals to enter the vacant space 48 and stay on the upper edge portion of the upright wall.

In the case of the motorcycle running state, water or mud is rolled up at the front of the motorcycle 10. Even if the water or mud is rolled up at the front of the motorcycle 10, the rolled water or mud can be caused to adhere to the

upright walls

61a, 62a, 63a, 64 a. Thus, the bottom cover structure 1 prevents mud or water from entering the empty space 46.

Even if mud or water enters the vacant space 46, since the

openings

62, 63, 64 are arranged on the left side opposite to the right side on which the batteries 50 are arranged, the bottom cover structure 1 prevents the influence of mud or water entering the vacant space 46.

Further, since the opening is disposed on the left side opposite to the right side on which the battery 50 is disposed, the bottom cover structure 1 can prevent water or mud from directly entering the battery 50, and sunlight sufficiently enters the vacant space 46.

In addition, since the height of the upright wall is gradually reduced, a sufficient intake air flow rate can be ensured. As a result, the under cover structure 1 can efficiently cool the engine 36 in the motorcycle running state.

Rear ends 61b, 62b, 63b, and 64b extend from a position on the center side of bottom cover 46 toward the outside of bottom cover 46 toward the rear of the motorcycle.

In the motorcycle running state, the traveling air is blown toward the

openings

61, 62, 63, 64 of the bottom cover 46. Since the flow of the traveling air is stable on the outside of the motorcycle 10, the bottom cover structure 1 prevents water or mud from entering the vacant space 48 through the

openings

61, 62, 63, 64.

Even if the slurry enters the vacant space 48, since the drain holes DH, DH are provided at the bottom cover 46, the slurry can be discharged through the drain holes DH, DH. Further, since the bottom cover structure 1 can take in the traveling air, the engine 36 can be cooled by the traveling air.

Although specific embodiments of the invention have been disclosed and described and shown in the accompanying drawings, this is for the purpose of promoting an understanding of the principles of the invention and is not intended to limit the scope or spirit of the teachings of the invention. Adaptations and modifications of various structures of the mounting mechanism of the embodiments, such as the design or materials of the invention, various components and elements, are possible and apparent without departing from the scope of the invention as defined by the claims.

List of reference numerals:

1 bottom cover structure

10 motorcycle

11 Main frame

11c Main frame horizontal tube

11d lower frame part of main frame

11f floor frame part of main frame

12a left rear frame tube

12b right rear frame tube

12c pivot axis

13 Cross member

13a front cross member

13b rear cross member

14 seat

16 air filter

18-head pipe

19 handle

21 rear cushion part

22a, 22b floor strut

30 swingable power unit

36 engine

40 front cover

41 inner cover

42 leg shield

43 Pedal

44a, 44b left and right side covers

45 front mudguard

46 bottom cover

46a, 46b left and right bottom cover side walls

46c bottom cover bottom surface member

47 rear mudguard

48 empty space

50 cell

52 harness

60 light guide section

61 first opening

62 second opening

63 third opening

64 fourth opening

61a, 62a, 63a, 64a upstanding wall

61b, 62b, 63b, 64b open rear ends

61c, 62c, 63c, 64c upper edge portions

Side walls of the

openings

61d, 62d, 63d, 64d

61e, 62e, 63e, 64e upstanding wall side edges

Open front ends of 61f, 62f, 63f, 64f

HL horizontal line

FW front wheel

FT front tyre

RW rear wheel

RT rear tyre

Claims

1. A bottom cover structure (1) for a motorcycle (10) comprising a pedal (43), comprising:

a bottom cover (46) provided below the step (43); and

a vacant space (48) interposed between the step (43) and the bottom cover (46),

wherein the bottom cover (46) has a light guide portion (60) configured to guide sunlight into an empty space (48) between the bottom cover (46) and the step (43);

wherein the light guide portion (60) includes one or more openings provided to the bottom cover (46), and each opening is formed with an upright wall that is upright into the vacant space (48) from a rear end of the opening; and is

Wherein the upright wall is inclined in a front direction of the motorcycle (10).

2. The bottom cover structure (1) of claim 1, wherein an upper edge portion of the upright wall comprises a plurality of sharp projections.

3. The bottom cover structure (1) of claim 1, wherein the upright wall is provided with at least one side wall extending from at least one side edge of the upright wall towards a front end of the opening.

4. The bottom cover structure (1) of claim 3, wherein the rear end of the opening is disposed at a position higher than the front end when viewed from the side of the motorcycle (10).

5. The undercover structure (1) of claim 4, wherein the engine of the motorcycle is arranged at a rear position in the undercover, and wherein the height of the upright wall gradually decreases toward the rear side of the undercover.

6. The bottom cover structure (1) of claim 5, wherein a main frame (11) and a battery (50) disposed at one of right and left sides of the main frame (11) are accommodated in the empty space (48), and wherein each opening is disposed at a side opposite to the one side.

7. The bottom cap structure (1) of claim 6, wherein at least one of the openings is arranged at the center of the empty space of the front of the battery (50).

8. The bottom cover structure (1) of claim 7, wherein the rear end of the opening extends from a position on a center side of the bottom cover (46) to an outside of the bottom cover (46) toward a rear of the motorcycle.