A chain case and a two-wheeled motor vehicle having the same
A technology for automatic two-wheeled vehicles and chain boxes, applied to bicycle accessories, axle suspension devices, guard plates, etc., can solve the problems of complicated replacement operations, achieve the effect of easy replacement operations and improve workability
Active Publication Date: 2015-07-15
YAMAHA MOTOR CO LTD
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- Description
- Claims
- Application Information
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Problems solved by technology
Therefore, after installing the rear wheels, it is necessary to install the upper case and the lower case together again, and there is a problem that the replacement work of the rear wheels becomes very complicated.
Method used
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Embodiment Construction
[0041] An embodiment of the present invention will be described below with reference to the accompanying drawings.
[0042] chain box
[0043] First, refer to Figure 1~Figure 5 The schematic configuration of the chain case according to the embodiment will be described. figure 1 It is an external perspective view of the chain case related to the embodiment, figure 2 It is an appearance perspective view showing the state that the upper outer chain case of the chain case is removed, image 3 It is an external perspective view showing a state in which the upper outer chain case and the lower outer chain case of the chain case are removed, Figure 4 It is an external perspective view showing the state where the outer chain case is removed and the rear plate is being removed from the inner chain case, Figure 5 It is an external perspective view showing a state in which the outer chain case and the rear panel of the chain case are removed.
[0044] The chain case 1 is a membe...
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A chain case (1) for covering a chain (3) which transmits power of a two-wheeled motor vehicle to a rear wheel (19), the chain case (1) being attached to a swing arm (9) supported by a pivot (11) to be swingable relative to the main frame (201) of the vehicle. The chain case (1) includes an inner chain case (5) attached inwardly, in a transverse direction of the vehicle, of a chain-side one, located on a driven sprocket (25) side of the rear wheel (19), of a left arm portion (13) and a right arm portion (15) of the swing arm (9), the inner chain case (5) having a front cutout (29) formed in a front portion thereof for attachment to a cross member (17) connecting the left arm portion (13 and the right arm portion (15) in a position adjacent the pivot (11), a rear cutout (31) formed by cutting away a lower and rearward portion corresponding to a region of the swing arm (9) where the rear wheel (19) is attached, and a rear plate (33) attached to the rear cutout (31); and an outer chain case (7) attached to the inner chain case (5) from outside in the transverse direction of the vehicle to cover the chain (3).
Description
technical field [0001] The present invention relates to a chain case for covering the periphery of a chain that transmits power of a motorcycle to a rear wheel, and a motorcycle (motorcycle, motorcycle) equipped with the chain case. Background technique [0002] Conventionally, in order to protect a chain in a motorcycle from dust, mud, etc., there is a technique of attaching a chain case around the chain. A chain case for such a two-wheeled vehicle is typically composed of an upper case and a lower case. For example, with reference to Japanese Patent Application Laid-Open No. 11-139376 ( figure 2 ). The chain case is divided up and down so that the upper case covers the upper part of the chain, and the lower case covers the lower part of the chain. The connection of the upper box and the lower box at the upper and lower positions is near the axle installation part of the rear wheel. [0003] However, the conventional example having this configuration has the following p...
Claims
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IPC IPC(8): B62J13/04
CPCB62J13/04B62K25/283
Inventor 小林康成尾形智和
Owner YAMAHA MOTOR CO LTD