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Variable transmission gearing system

A technology of transmission gears and moving gears, applied in transmission elements, transmission devices, gear transmission devices, etc., can solve the problems of difficulty in moving back and forth, complicated and heavy bicycles, etc.

Inactive Publication Date: 2015-12-23
MEGA UNIT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to move back and forth through a large number of gear ratios, and the rider may only use a few of the gear ratios available
[0003] It is good to have as many gear ratios as possible, but it makes the bike complex and bulky

Method used

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  • Variable transmission gearing system
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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0092] First Embodiment (Figure 1-21)

[0093] 1-21 show the first embodiment of the variable transmission gear system of the present application. Such as Figures 1A-1D , 2A-2H and 9, the variable transmission gear system may include a main plate A09 driven by a sprocket A01. Through the power transmission of the bicycle chain, the sprocket A01 can become a driven gear. Said sprocket can transmit rotational power to the SVT system, which can be attached to the main plate "A09" and can drive three bevel gears "D03" to rotate in the gearbox. The number of said bevel gears may be more or less than three.

[0094] The main board A09 may be the main driven part. Power from the bicycle chain can be sent directly to the main plate. The bevel gear "D03" connected to the main board A09 will rotate synchronously. The metal rod D01 may be the connection part between the outer part and the inner part of the main board "A09". The bearing B02 can separate the rotation of the main bo...

no. 2 approach

[0149] The second embodiment ( Figure 22-36 )

[0150] Figure 22-36 A second embodiment of the variable transmission gear system of the present application is shown. Such as Figure 22 - 29, 33A, 33B and 34, the variable transmission gear system may include a sprocket gear A01 mounted on a sprocket gear mount A02. The sprocket gear A01 may be a gear driven by the user's legs through a bicycle chain or belt. Sprocket A01 may be attached to mount A02 to receive and transmit power to the SVT system. The sprocket mount may be annular and have a plurality of openings. The conical drive A03 and the sprocket mount A02 can be coupled by a plurality of balls between them. Conical drive A03 can rotate with sprocket gear mount A02. The bevel drive A03 may be a mount for fixing and driving the bevel gear A04 to rotate around the wheel spindle A11.

[0151] A plurality of bevel gears A04 are rotatably fixed between a bevel driver A03 and a bevel holder A06 coupled to the bevel ...

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PUM

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Abstract

A variable transmission gearing system for a bicycle includes a mainboard driven by a chain gear, a plurality of cone gears rotatable on a plurality of shafts fixed on the mainboard respectively, and a sun gear rotatable with an input shaft of a wheel. Also disclosed is a variable transmission gearing system including a sprocket mounted on a sprocket mount, a cone driver rotatable with the sprocket mount, a plurality of cone gears rotatably mounted between the cone driver and a cone holder, a driven pad frictionally engaged and rotatable with the cone gears, a main shaft rotatable with the driven pad, and a shifting shaft frictionally engaged and rotatable with the cone gears.

Description

technical field [0001] This application is directed to gear systems, and more particularly to intelligent variable transmission gear systems for bicycles. Background technique [0002] Bicycles typically have several gear ratios, allowing the rider to move back and forth between gears to efficiently operate the bike in different riding conditions. However, it is difficult to move back and forth through the large number of gear ratios, and the rider may only use a few of the gear ratios available. [0003] It is good to have as many gear ratios as possible, but it makes the bike complex and bulky. Therefore, it would be desirable for bicycles to have infinitely variable gear ratios, especially if such gear ratios could be operated automatically so that the rider would not have to worry about changing gears while riding. Even with the infinitely variable gear ratios of automation, one would still wish for a more efficient and easier-to-use way of controlling gear ratios. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44
CPCF16H3/44F16H2200/2002B62M11/14F16H3/76F16H3/423B62M11/16B62M9/06F16H59/36F16H3/50F16H3/72F16H61/0202
Inventor 陆剑良杨壬豪
Owner MEGA UNIT TECH