Patent ID: 9073603
Filing Date: 2015-07-07
Classification: B62M,F16H

Abstract:
1. A multi-ratio transmission system with parallel vertical and coaxial planet gears, comprising: a plurality of planet gear sub-systems, being coaxially disposed in series along a first axis, each of said planet gear sub-system comprising: a coupling assembly disposed between every two adjacent said planet gear sub-systems so as to transmit rotation of said planet gear of the former said planet gear sub-system to said planet gear of the latter said planet gear sub-system; a setting element disposed corresponding to each of said planet gear sub-systems, wherein said setting element optionally moves in the direction of said first axis so as to optionally engage with said sun gear of said planet gear sub-system; a setting element controller, having a hollowed tube disposed coaxially with said first axis to rotate around said first axis within a range of predetermined angles, wherein said hollowed tube has an outer circumferential surface, and a cam groove is formed on said outer circumferential surface in the circumferential direction corresponding to each of said setting element of said planet gear sub-system, thereby allowing said setting element to optionally move along said first axis and to optionally engage with said sun gears of said planet gear sub-systems; an annular gear engaged to said planet gear of at least one of said planet gear sub-system, wherein said annular gear is installed onto a one-way clutch; a cylindrical casing enclosing said planet gear sub-systems, wherein said cylindrical casing has a front end for rotatably fitting said annular gear; a sprocket, installed onto said one-way clutch, wherein an external transmission system is connected with said sprocket to drive said planet gear sub-systems to rotate through said one-way clutch and said annular gear; and a central axle, being disposed coaxially with said first axis, wherein said central axle is inserted into a center through hole of said hollowed tube of said setting element controller by relative rotation, thereby enabling said hollowed tube to rotate around said central axle.