JPH07106710B2 - Motorcycle front cover - Google Patents

Description

TECHNICAL FIELD The present invention relates to a front cover of a motorcycle.

(Prior Art) There is a case where a front cover is provided on a motorcycle as a windbreak for a rider, and heretofore, there is one having the following structure.

That is, the front cover includes a cowling that covers the front portion of the vehicle body frame, and a screen that is coupled to the cowling so as to project upward from the cowling.

Further, in the above structure, there is a structure in which the cowling is divided into left and right parts and is made up of two members on the left and right sides for the purpose of facilitating die cutting in molding the cowling.

(Problems to be Solved by the Invention) By the way, the above-described conventional configuration has the following problems.

First, since the cowling is made up of two left and right members, there is a possibility that the working time when these members are attached to the vehicle body frame side becomes long.

Secondly, a screen is connected to the cowling so as to project upward from the cowling, but as described above, the cowling is composed of two left and right members, and this cowling is integrally molded. The rigidity tends to be lower than in the case. Therefore, the strength of connection of the screen to the cowling becomes insufficient, and the screen may easily vibrate during traveling.

Thirdly, as described above, the cowling is composed of two members, a joint is formed between the left and right two members, and a large number of screws are used to screw each member to the body frame. Therefore, the appearance of the vehicle body may deteriorate.

(Object of the Invention) The present invention has been made paying attention to the above circumstances and has the following objects.

First, even if the cowling is composed of two members on the left and right,
It is an object of the present invention to prevent the working time from being increased when these two members are attached to the vehicle body frame side.

Secondly, even when the screen is connected to the cowling, which is apt to have a reduced rigidity due to being composed of the left and right members, the connection strength of the screen to the cowling is sufficiently secured and the screen runs. The purpose is to avoid vibration at times.

Third, by forming the cowling with two members, the appearance of the vehicle body can be maintained well even if a joint portion is formed or the number of screws for fixing these is increased. The purpose is to

(Structure of the Invention) A feature of the present invention for achieving the above-mentioned object is that a portion above the upper edge of the opening in the cowling is
Same as the above, a step portion that becomes a step toward the inside of the vehicle body from the upper edge to the lower portion of the opening is provided, and an upper flange extending from the upper edge of the step portion is provided, and the side surface plate of this step portion is almost from the surface. A screw seat that is recessed at the height of the screw head is formed, and a lower flange that extends from the lower edge of each front plate of the left and right two members is provided.The screw seat is formed on this lower flange, and the mounting that forms the front end of the body frame is attached. The screw seat of the lower flange is screwed to the lower part of both sides of the stay with the first screw from below, and the screw seat of the side plate of the stepped portion is screwed to the upper parts of both sides of the same mounting stay from the outside with the second screw. The two parts are attached to the body frame so that the left and right parts are joined together, the lower part of the screen is opaquely painted to form a painted part, and the painted part is fitted to the step part. The coating portion covers the joint between the front plates of the left and right two members and the second screw, and the lower portion of the screen is connected to the stepped portion of the left and right two members by the third screw, and each of the screen and the cowling is connected. The outer surfaces of the side plates are substantially flush with each other, and the lower edge of the front plate of the screen and the opening edge of the cowling on the vehicle exterior side are substantially flush with each other.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 1 is a motorcycle, and an arrow Fr in the drawing indicates the front of the motorcycle 1.

A steering shaft tube 3 is provided at the front end of the vehicle body frame 2 of the motorcycle 1, and a front fork 4 is rotatably supported on the steering shaft tube 3 about its axis. A front wheel 5 is supported on the lower end of the front fork 4, and a handle 6 is attached to the upper end thereof. Further, a front cover 8 is provided at the front part of the vehicle body frame 2 in order to protect the rider from the running wind in the motorcycle 1.
Reference numeral 9 denotes a headlight, and the headlight 9 is supported by the body frame 2.

On the other hand, a rear wheel is supported on the rear portion of the vehicle body frame 2 via a rear arm (not shown), and an engine 10 supported on the vehicle body frame 2 drives the rear wheel.

The front cover 8 is mainly shown in FIGS. 1 and 3.
Will be described.

The front cover 8 covers the front portion of the vehicle body frame 2 and is supported by the vehicle body frame 2, and the cowling 12 so as to project upward from the cowling 12.
And a screen 13 connected to the cowling 12. The screen 13 is arranged at the center of the cowling 12 in the vehicle width direction.

The cowling 12 is made of an opaque resin and has a body frame 2
The front plate 15 is located in front of the front plate 15 and a pair of left and right side plates 16 extending from both side ends of the front plate 15 toward the rear of the vehicle body, and is formed in a generally U-shape in a plan view. An opening 14 is formed in the central portion of the front plate 15 in the vehicle width direction, and the front surface of the headlight 9 faces the opening 14 from behind.

In order to improve the styling of the cowling 12, the side plates 16, 16 are formed so as to come closer to each other as they go rearward. The cowling 12 is divided into left and right by a line passing through the center portion of the front plate 15 in the vehicle width direction.
And a right member 12b.

The left member 12a and the right member 12b are individually formed by die-cutting and then joined to each other, and the position of the reference numeral 25 shown in FIGS. 1 and 4 is a joining portion.

A portion of the cowling 12 above the upper edge of the opening 14 is formed as a step portion 17 which is a step toward the inside of the vehicle body with respect to a portion below the upper edge of the opening 14 above. This step
An upper flange 17a extending rearward and upward from the upper edge of 17 is provided. Further, the side plate 16 in the step portion 17 is the same as above.
Is formed with a screw seat 16a that is recessed from the surface thereof to approximately the height of the screw head.

Lower flanges 15a, 15a extending from the lower edges of the front plates 15, 15 of the left member 12a and the right member 12b are provided, and a screw seat 15b is formed on each of the lower flanges 15a.

The vehicle body frame 2 has a mounting stay 18 protruding from the front surface of the steering shaft tube 3, and the mounting stay 18 constitutes a front end portion of the vehicle body frame 2. The screw seats 15b of the lower flanges 15a are screwed to the lower parts of both sides of the mounting stay 18 from below by first screws 19 and 19, and the screw seats 16a of the upper flanges 17a are attached to the mounting stays 18 respectively. The left and right members 12a and 12b are joined to each other and attached to the vehicle body frame 2 by the second screws 20 and 20 which are screwed to the upper portions of both sides of the vehicle from outside.

The screen 13 is made of a transparent resin so that the rider can visually recognize the front, and the lower portion of the screen 13 is a coating portion 13a coated with an opaque paint. In addition, this screen 13 is a front plate 22 that rises diagonally rearward.
And side plates 23 extending rearward from both side ends of the front plate 22, which are integrally molded.

The coating portion 13a, which is the lower portion of the screen 13, is fitted into the step portion 17 that is the upper portion of the left member 12a and the right member 12b.
The joint 25 between the front plates 15 and 15 of the left member 12a and the right member 12b and the second screw 20 are covered from outside the vehicle body by 3a.

The coating portion 13a which is the lower portion of the screen 13 is screwed to the step portion 17 which is the upper portion of the left member 12a and the right member 12b by the third screw 26, whereby the cowling 12
The screen 13 is connected to.

In this case, the side plates 16, 2 of the screen 13 and cowling 12
The outer surfaces of 3 are substantially flush with each other, and the lower edge of the front plate 22 of the screen 13 and the opening edge of the cowling 12 on the vehicle outer side of the opening 14 are substantially flush with each other.

(Effects of the Invention) According to this invention, the following effects occur.

First, the cowling is composed of left and right members, which are screwed to the vehicle body frame by a first screw and a second screw. The first screw screws the left and right members from below the cowling. On the other hand, the second screw is to fix the left and right members from the outer side of the cowling.

Therefore, it is possible to prevent the operations for the first screw and the second screw from interfering with each other.

Therefore, since the work for the first screw and the work for the second screw can be performed without ordering each other, it is possible to prevent the work from being lengthened correspondingly, which is preferable in terms of workability.

Moreover, when the left and right members are screwed to the vehicle body frame with the first screw and the second screw, the two left and right members are joined to each other. Therefore, the two left and right members are directly screwed together. There is no need to perform the work for making it. Therefore, also in this respect, the screwing work of the left and right two members is simplified, which is preferable in terms of workability.

Secondly, the cowling for connecting the screens is composed of two members on the left and right, and its rigidity tends to decrease. However, each of these members is provided with an upper flange and a lower flange. The first frame and the second frame are screwed to the vehicle body frame from different directions as described above.

Therefore, although the cowling is composed of two members, the cowling has to have sufficient rigidity.

Therefore, the strength of connection of the screen to the cowling is improved, the vibration of the screen is suppressed during traveling, and the riding comfort is improved.

Thirdly, the lower part of the screen is used as an opaque coating portion, and the coating portion covers the joint between the left and right two members and the second screw.

For this reason, it is prevented by the painted portion that the joint portion and the second screw are easily visible on the appearance, and thus,
The appearance of the car body is kept good.

Moreover, the outer surfaces of the side plates of the screen and the cowling are substantially flush with each other, and the lower edge of the front plate of the screen and the opening edge of the cowling on the vehicle exterior side are substantially flush with each other. .

Therefore, the surface of the front cover has a smooth surface without any unevenness, and the appearance of the vehicle body can be maintained in this respect as well.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and FIG. 1 shows I-I of FIG.
Enlarged sectional view taken along the arrow, FIG. 2 is a side view of the front part of the motorcycle,
FIG. 3 is an exploded perspective view of the front portion of the motorcycle. 1 ... Motorcycle, 2 ... Body frame, 8 ... Front cover, 9 ... Headlight, 12 ... Cowling, 12a ...
Left member, 12b …… Right member, 13 …… Screen, 13a …… Coating part (bottom), 14 …… Opening, 15 …… Front plate, 15a …… Lower flange, 15b …… Screw seat, 16 …… side Face plate, 16a ... Screw seat, 17 ... Step portion, 17a ... Top flange, 18 ... Mounting stay, 19 ... First screw, 20 ... Second screw, 22 ... Front plate, 23 ... side Face plate, 25 …… Joint part, 26 …… Third screw.

Claims (1)

[Claims] 1. A cowling for covering a front portion of a body frame,
A front plate located in front of the vehicle body frame and side plates extending rearward from both side ends of the front frame are generally U-shaped in plan view, and a headlight is provided at the center of the front plate in the vehicle width direction from behind. The same cowling is divided into left and right by a line that passes through the center of the front plate in the vehicle width direction, and is composed of two left and right members. In a front cover of a motorcycle, which is integrally molded with a side plate extending rearward, and a lower portion of this screen is connected to an upper portion of the cowling, a portion above the upper edge of the opening in the cowling is
Same as the above, a step portion that becomes a step toward the inside of the vehicle body from the upper edge to the lower portion of the opening is provided, and an upper flange extending from the upper edge of the step portion is provided, and the side surface plate of this step portion is almost from the surface. A screw seat that is recessed at the height of the screw head is formed, and a lower flange that extends from the lower edge of each front plate of the left and right two members is provided.The screw seat is formed on this lower flange, and the mounting that forms the front end of the body frame is attached. The screw seat of the lower flange is screwed to the lower part of both sides of the stay with the first screw from below, and the screw seat of the side plate of the stepped portion is screwed to the upper parts of both sides of the same mounting stay from the outside with the second screw. The two parts are attached to the body frame so that the left and right parts are joined together, the lower part of the screen is opaquely painted to form a painted part, and the painted part is fitted to the step part. The coating portion covers the joint between the front plates of the left and right two members and the second screw, and the lower portion of the screen is connected to the stepped portion of the left and right two members by the third screw, and each of the screen and the cowling is connected. A front cover for a motorcycle, wherein the outer surfaces of the side plates are substantially flush with each other, and the lower edge of the front plate of the screen is substantially flush with the opening edge of the cowling on the vehicle outer side.