CN102941896A - Chain box and rear fender integral structure - Google Patents

Abstract

The invention discloses an integrated structure of a chain box and a rear fender, comprising a chain box (1) and a rear fender (2); the side of the rear fender (2) is provided with the chain box (1), A first mounting plate (3) is provided on the other side of the chain case (1); a second mounting plate (6) is provided on the outer side of the rear fender (2) away from the chain case (1); The first mounting plate (3) and the second mounting plate (6) are respectively provided with at least one, and a total of at least three connecting holes for connecting with the flat fork of the motorcycle; the chain box (1), the tailgate The mud plate (2), the first mounting plate (3) and the second mounting plate (6) are of an integral structure. The present invention can adopt a set of molds to manufacture the chain box and the rear fender, thereby reducing the manufacturing cost; and can reduce the number of connection installation points between the chain box and the rear fender and the vehicle frame, thus simplifying the installation process and avoiding the The radiation noise from the chain box and the rear fender better ensures the consistency of the whole vehicle.

Description

An integrated structure of chain box and rear fender

technical field

The invention relates to an integrated structure of a motorcycle chain box and a rear fender.

Background technique

In the prior art, the chain box and the rear fender of the motorcycle are independent components, which are respectively arranged on the motorcycle. Therefore, the chain box and the rear fender need two sets of molds to be manufactured separately, and the cost is relatively high. On the other hand, the chain box and the rear fender need to be installed separately, and the chain box needs to be provided with at least two installation points connected with the flat fork, and the rear fender needs to be provided with at least three installation points connected with the flat fork, so The assembly process is relatively complicated. Moreover, when the motorcycle is subjected to large vibrations, the chain box and the rear fender may also produce resonance radiation noise.

Therefore, those skilled in the art are committed to developing a chain box rear fender installation structure with low manufacturing cost, simple assembly, and no radiation noise.

Contents of the invention

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a chain box rear fender installation structure with low manufacturing cost, simple assembly and no radiation noise.

To achieve the above object, the present invention provides a chain box and rear fender integrated structure, including chain box and rear fender; the side of the rear fender is provided with the chain box, on the other side of the chain box A first mounting plate is provided on the side; a second mounting plate is provided on the outer side of the rear fender far away from the chain box; at least one and at least three in total are respectively provided on the first mounting plate and the second mounting plate A connecting hole for connecting with a flat fork of a motorcycle; the chain box, the rear fender, the first mounting plate and the second mounting plate are integrally structured.

In order to simplify the structure, the first mounting plate is an arched structure; the first connecting hole and the second connecting hole are located at both ends of the arch; the rear fender is located at the bottom of the arched first mounting plate above the outer surface.

Preferably, the rear fender divides the chain box into front and rear sections; the rear section of the chain box is located above the rear outer surface of the first mounting plate.

Preferably, the length of the rear section of the chain case is not less than three times the length of the front section.

In order to improve the strength, the bottom of the transition connection between the rear section of the chain box and the rear fender is provided with reinforcing ribs.

Preferably, the reinforcing ribs include three transverse reinforcing ribs arranged laterally along the transition joint and longitudinal reinforcing ribs arranged longitudinally along the transition joint.

Preferably, the connection holes include a first connection hole and a second connection hole respectively provided at the front and rear ends of the first installation board, and a third connection hole provided at the front and rear ends of the second installation board. hole and the fourth connecting hole.

The beneficial effects of the present invention are: the present invention integrates the chain case and the rear fender, so a set of molds can be used to manufacture the chain case and the rear fender at the same time, thereby reducing the manufacturing cost; and the chain case and the rear fender can be reduced. The number of connection installation points between the rear fender and the frame simplifies the installation process, avoids the radiation noise of the chain box and the rear fender, and better guarantees the consistency of the whole vehicle.

Description of drawings

Fig. 1 is a schematic structural view of a specific embodiment of the present invention.

FIG. 2 is a schematic top view of the structure of FIG. 1 .

Fig. 3 is a left view structural diagram of Fig. 1 .

Fig. 4 is a rear view structural schematic diagram of Fig. 1 .

Fig. 5 is a bottom view of Fig. 1 .

Fig. 6 is a schematic diagram of a working state of a specific embodiment of the present invention.

FIG. 7 is a top view of FIG. 6 .

Fig. 8 is a left side view of Fig. 6 .

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

As shown in Figures 1 to 5, a chain box and rear fender integrated structure, including the rear fender 2, the side of the rear fender 2 is provided with a chain box 1, on the other side of the chain box 1 A first mounting plate 3 is provided. The front and rear ends of the first mounting plate 3 are respectively provided with a first connecting hole 4 and a second connecting hole 5 for connecting with the motorcycle fork 9 . The rear fender 2 is provided with a second mounting plate 6 on the outer side away from the chain box 1, and the front and rear ends of the second mounting plate 6 are respectively provided with a third connecting hole 7 and a fourth connecting hole 8 for connecting with the flat fork of the motorcycle. .

The chain box 1, the rear fender 2, the first mounting plate 3 and the second mounting plate 6 are integrally structured.

The first mounting plate 3 is an arched structure, and the first connection hole 4 and the second connection hole 5 are located at two ends of the arch. The rear fender 2 is located above the outer surface of the arched bottom of the first mounting plate 3 .

The rear fender 2 divides the chain case 1 into front and rear sections, and the rear section 1 a of the chain case 1 is located above the rear outer surface of the first mounting plate 3 . The rear section length L1 of the chain case 1 is 3 times of the front section length L2.

The bottom of the transition joint 1c between the rear section 1a of the chain box and the rear fender 2 is provided with reinforcing ribs. The reinforcing ribs include three transverse reinforcing ribs 10a arranged laterally along the transition joint 1c and longitudinal reinforcing ribs 1b longitudinally disposed along the transition joint 1c.

When the integrated structure of the chain box and the rear fender works, it can be installed on the flat fork 9 of the motorcycle through the first connecting hole 4, the second connecting hole 5, the third connecting hole 7 and the fourth connecting hole 8, as shown in Figure 6 to Figure 8.

The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall be within the scope of protection defined by the claims.

Claims (7)

1. An integrated structure of a chain box and a rear fender, including a chain box (1) and a rear fender (2); the feature is: the side of the rear fender (2) is provided with the chain box (1 ), a first mounting plate (3) is provided on the other side of the chain case (1); a second mounting plate (6) is provided on the outer side of the rear fender (2) away from the chain case (1) ); the first mounting plate (3) and the second mounting plate (6) are respectively provided with at least one, and a total of at least three connection holes for connecting with the flat fork of the motorcycle; the chain box (1), The rear fender (2), the first mounting plate (3) and the second mounting plate (6) are integrally structured. 2. The integrated structure of chain box and rear fender according to claim 1, characterized in that: the first mounting plate (3) is an arched structure; the first connection hole (4) and the second connection The holes (5) are located at both ends of the arch; the rear fender (2) is located above the outer surface of the arch top of the first mounting plate (3). 3. The chain box and rear fender integrated structure according to claim 2, characterized in that: the rear fender (2) divides the chain box (1) into two sections; the chain box The rear section (1a) of (1) is located above the rear outer surface of the first mounting plate (3). 4. The chain box and rear fender integrated structure according to claim 3, characterized in that: the length (L1) of the rear section of the chain box (1) is not less than three times the length (L2) of the front section. 5. The integrated structure of chain box and rear fender according to claim 3 or 4, characterized in that: the transitional joint (1c) between the rear section of the chain box (1a) and the rear fender (2) The bottom is provided with reinforcing ribs. 6. The integrated structure of chain box and rear fender according to claim 5, characterized in that: the reinforcement ribs include three transverse reinforcement ribs (10a) arranged side by side along the transition joint (1c) and A longitudinal reinforcing rib (1b) arranged longitudinally along the transition connection (1c). 7. The integrated structure of chain box and rear fender according to claim 1, characterized in that: the connection holes include first connection holes ( 4) and the second connecting hole (5), as well as the third connecting hole (7) and the fourth connecting hole (8) provided at the front and rear ends of the second mounting plate (6).

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