Motorcycle

A motorcycle and rear wheel technology is applied in the field of two-wheeled motorcycles to achieve the effect of reducing weight and improving controllability

Inactive Publication Date: 2011-01-26
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] But, in above-mentioned existing structure, if will dispose transmission shaft inside the rocking arm of one side, then need the cross section of this side rocking arm be made bigger than the cross section of another side rocking arm, like this for two rocking arms Therefore, it is necessary to seek to make it have the most suitable rigidity, while improving the strength of the rear fork and reducing its weight

Method used

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Embodiment Construction

[0028] Next, preferred embodiments of the present invention will be described with reference to the drawings.

[0029] Fig. 1 shows a left side view of a motorcycle according to an embodiment of the present invention. In addition, in the following description, the front-back, left-right, and up-down directions are all directions of the vehicle body.

[0030] The frame 11 of the two-wheeled motorcycle 10 has: a steering standpipe 13 positioned on the front side of the vehicle body; a main frame 14 extending rearward from the steering standpipe 13; The rear ends extend rearward on the left and right sides respectively; a pair of lower frames 16 extend obliquely downward from the steering riser 13 on the left and right sides respectively; a pair of rear frames 17 respectively On the left and right sides, the rear end of the lower frame 16 and the rear end of the seat frame 15 are connected. Each of the above components constitutes a vehicle frame structure whose side shape is r...

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Abstract

A motorcycle (10) has a rear fork, and swinging arm of the fork has the most suitable rigid and being able to improve strength of the rear fork and reducing its weight. The motorcycle includes a rear fork (21) is swingably provided on a vehicle body frame (11) with a power unit (33), a rear wheel (35) is provided at a rear end (21b) of the rear fork, a drive shaft (56) is provided between a gearcase (54) on a lateral side of the rear wheel and an output shaft of the power unit, and output power of the power unit is transmitted to the rear wheel through the drive shaft and the gear case. Therear fork extends along a lateral side of the rear wheel and has an arm (111) through which the drive shaft (56) passes. The arm has a tubular base (111a) part with a closed cross section, and a rearpart (111b) with an open cross section through which the drive shaft passes. The base part has a thick-walled area (114) at the rear end (300) of the base part.

Description

technical field [0001] The invention relates to a two-wheeled motorcycle with a transmission shaft. Background technique [0002] Generally speaking, there is known a two-wheeled motorcycle with the following structure: a swingable rear fork is provided on a frame on which a power unit is installed, a rear wheel is provided at the rear end of the rear fork, and a rear wheel is arranged on the side of the rear wheel. A transmission shaft is arranged between the gearbox of the power unit and the output shaft of the power unit, and the power output by the power unit is transmitted to the rear wheels through the transmission shaft and the gearbox (for example, refer to patent document 1). [0003] The rear fork of this two-wheeled motorcycle has a pair of rocker arms, and the left and right rocker arms respectively adopt a cylindrical structure with a closed cross-section. [0004] [Patent Document 1] Japanese Patent Laid-Open Publication No. 2006-96274 [0005] But, in above-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62K25/20B62K11/00
CPCB62K25/283B62M7/02B62K19/30B62M17/00
Inventor 伊藤真二
Owner HONDA MOTOR CO LTD
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