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Two-wheel motorcycle

A technology for motorcycles and axles, applied in the field of two-wheeled motorcycles, can solve the problems of limited space for brake cams, small degrees of freedom in the design of support pins and brake cams, limited space, etc. , to avoid the effect of size increase

Active Publication Date: 2013-04-03
HONDA MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the two-wheeled motorcycle disclosed in this reference document 1, the support pin support hole for passing the support pin and fixing the support pin is provided on the part of the transmission mechanism housing constituting the brake disc, and is not connected with the gear reduction gear. The bearing holes of the multiple shafts of the device overlap, and the space for arranging the support pin support holes is very limited, which leads to a very limited space for arranging the brake cam. Therefore, the design freedom of the support pin and the brake cam is small.
In order to solve this problem, the support pin support hole can be provided at a position that coincides with one of the bearing holes of the multiple shafts of the gear reducer in the axial direction, however, this requires an increase in the composition of the transmission mechanism housing. The thickness of the wall of the brake disc in the axial direction of the rear wheel leads to an increase in the size of the transmission housing

Method used

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Embodiment Construction

[0034] Refer below Figure 1~7 Specific embodiments of the present invention will be described. In the following description, the up-down and left-right directions refer to directions viewed from the perspective of a rider riding on a motorcycle.

[0035] Such as figure 1 As shown, the two-wheeled motorcycle is a scooter-type two-wheeled motorcycle with a pedal 11, and its body frame F has a head pipe 13 and a pair of left and right side frames 14, wherein the front fork 12 is connected to the head pipe 13, and the front fork 12 is connected to the front fork. The fork 12 is steerable, and a rotatable front wheel WF is mounted thereon; front ends of a pair of side frames 14 are connected to the head pipe 13 . The side frame 14 is formed by bending a pipe, and has an integral down frame portion 14a, a lower frame portion 14b, an up frame portion 14c, and a cushion rail portion 14d, wherein the down frame portion 14a extends downward from the head pipe 13; The lower part 14b ...

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Abstract

The invention provides a two-wheel motorcycle, which can avoid the increase in the size of a transmission mechanism shell and improve the design freedom degree of a bearing pin and a brake cam. The two-wheel motorcycle comprises the transmission mechanism shell with a rear end supporting a wheel axle of a back wheel, a transmission chamber formed in the shell and housing a belt continuous variable transmission, and a gear reduction unit chamber for housing a gear reduction unit, wherein a first end on the circumferential direction of a brake shoe of a drum type brake on the back wheel is supported by a supporting pin, and the supporting pin passing through a wall part of the transmission mechanism shell for forming a brake disc and is fixed on the wall part. In addition, the wall part (63a)is provided with a bearing hole (111) and a supporting pin supporting hole (115), the end of a gear shaft is supported by the bearing hole, the gear shaft is provided with at least one of the gears of the gear reduction unit, the supporting pin (90) passes through the supporting pin supporting hole and is fixed and connected with the bearing hole, and the first end of the supporting pin is towards the bearing hole.

Description

technical field [0001] The invention relates to a two-wheeled motorcycle, which has a body frame, on which a power unit is supported in a swingable manner, and the power unit has an engine, a belt-type continuously variable transmission, and a gear reducer, wherein the crankcase of the engine A rotatable crankshaft is supported in the casing, and the belt type continuously variable transmission performs stepless speed change on the rotational power of the crankshaft. The gear reducer is arranged between the belt type continuously variable transmission and the axle of the rear wheel, and the axle is pivotally supported on the transmission On the rear end of the mechanism casing, the transmission mechanism casing is connected to the crankcase casing and extends backward, and a transmission chamber for accommodating the above-mentioned belt-type continuously variable transmission and a transmission chamber for accommodating the above-mentioned gear reduction gear are formed in the...

Claims

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Application Information

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IPC IPC(8): B62K11/00B62M11/04
Inventor 胜田淳平池田一博武市广人
Owner HONDA MOTOR CO LTD
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