Abstract

A multi mode centrifugal clutch for two wheelers with gear box transmission, comprising, a rotor ( 1 ); a clutch casing to which the said rotor is rotationally coupled(2); a plurality of Friction drive plates being placed in said clutch casing(5); a presser plate(7); a primary Drive pinion assembled on the said rotor(8); a slider(9); a plurality of friction driven plates assembled on the said slider and(10); a plurality of rollers which are positioned in specifically profiled cavities in said rotor(l 1); The said Multi Mode Centrifugal Clutch, according to this invention, can be manually disengaged during gear shifting and, in the disengaged state when the engine is not running, allows reverse power flow to facilitate kick starting of the engine.

IPC Classes  ?

• F16D 43/12 - Internally controlled automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating axially a movable pressure ring or the like the pressure ring actuating friction plates, cones, or similar axially-movable friction surfaces the centrifugal masses acting on, or forming a part of, an actuating mechanism by which the pressure ring can also be actuated independently of the masses
• F16D 13/52 - Clutches with multiple lamellae

Abstract

A motorized gear shifting mechanism consisting of, a DC motor (27) powered by the vehicle's power source, an electronic unit to control the power supply to the motor, a pair of micro switches - one for upward shift and one for downward shift, conveniently located at the handle bar through which the operator signals the electronic unit to effect upward / downward gear shift; a set of sensors to monitor the gear shift movement and generate a signal for the control unit to switch off the motor driven by the motor and a geared transmission mechanism for connecting the motor with the gear shift linkage of the engine; soft actuation clutch.

IPC Classes  ?

• F16H 59/02 - Selector apparatus
• F16H 63/38 - Detents
• F16H 63/30 - Constructional features of the final output mechanisms

Abstract

A semi-monocoque structure for a vehicle preferring a two wheeler comprising load bearing drive assembly, a shell assembly for providing support for driver and pillion seating matching with the drive away assembly maintaining the continuity of vehicle aesthetic and a pair of sheet metal lockable cowls providing cover and safety for engine and other parts. Drive away portion consist of Front End and Rear End where as Front End is basically of sheet metal construction (1.1, 1.2, 1.3, 1.4) and Rear End is mostly of tubular construction (3.2). A semi-monocoque structure for fitment of two stroke as well as four stroke engine, facilitates use of LPG or CNG tank (3.15) and 2 or 3 stage gas pressure reducer with in the existing shell with minimum insignificant changes.

IPC Classes  ?

• B62K 11/10 - Frames characterised by the engine being over or beside driven rear wheel