TH100551A - Motorcycles - Google Patents

Abstract

DC60 (05/11/56) In the motorcycle, which includes the engine hanger which is positioned in the middle of the main frame, the continuously variable transmission (V-belt) system, which includes an endless V-belt wrapped around the drive pulley which is assembled on the crankshaft and the driven pulley, this continuously variable transmission is arranged in a transmission housing which is arranged in a modified alignment system with the main engine body and the gear reduction mechanism which is inserted between the electric motor for the gear set and the movable half-pulley which forms this drive pulley. To arrange the electric motor for the gear set for varying the width of the groove of the driven pulley in this continuously variable transmission (V-belt) system, the gear set is positioned more centrally along the width of the vehicle body by avoiding narrowing the degree of freedom of arrangement of the parts around the power unit. The electric motor 96 for the gear set is positioned forward of the engine hanger 18 within the area enclosed by the intake system 38 which is connected. Matching the upper wall surface of cylinder head 31, which forms part of the main body of engine 27, main frame 14, and main body of engine 27 in the motorcycle, including the engine hanger which is positioned in the middle of the main frame, the continuously variable V-belt transmission, which includes an endless V-belt wrapped around the drive pulley which is assembled on the crankshaft and driven pulley, this continuously variable transmission is arranged in a transmission housing which is arranged in a modified alignment system with the main body of the engine, and the gear reduction mechanism of the gear lever assembly which is inserted between the electric motor for the gear lever assembly and the movable half-pulley body which forms part of this drive pulley, in order to arrange the electric motor for the gear lever assembly for varying the width of the groove of the gear pulley in this continuously variable V-belt transmission on the middle side in the direction along the width of the vehicle body by avoiding the degree of freedom of placement of the various parts. The power unit's circumference is narrowed. The 96 electric motor for the gearbox is positioned towards the front of the suspension. Engine 18 is enclosed within the intake system 38, which is connected to the upper wall surface of the cylinder head 31, forming part of the main body of the engine 27, main frame 14, and this main body of the engine 27.

Claims (5)

1. A motorcycle in which an engine hanger (18) for suspending the main body of the engine (27), whose cylinder shaft (C) is tilted upward toward the front, is positioned in the middle of the main frame (14) to extend downward toward the main body (14), which extends downward toward the rear from the head tube (13) for supporting the front forks (11) and steering lever (12) for steering, with the main frame (14) being an integral part of the vehicle chassis (F); a continuously variable transmission (M) V-belt drive system consisting of an endless V-belt (60) wrapped around a drive pulley (58) mounted on the crankshaft (28), which is rotatably supported by the crankcase (29) of the main body of the engine (27), and a driven pulley (59) capable of transmitting rotational power to the rear wheel (WR), which is supported in the transmission housing (54) provided to this main body of the engine (27); and the gear reduction mechanism of the gear assembly (97), which is inserted between the electric motor (96) for the gear assembly and the movable half-pulley body (63) that makes up this drive pulley (58); that is: the electric motor (96) for the gear assembly is positioned toward the front of the engine hanger (18) within the area enclosed by the intake system (38) which is connected to the upper side wall of the cylinder head (31) that makes up the main body of the engine (27), the main frame (14) and the main body of the engine (27) and the electric motor (51) for starting the engine, which also has the capability to power the crankshaft (28), which is positioned on the upper part of the main body of the engine (27) toward the front of the engine hanger (18) and the electric motor (96) for the gear assembly is positioned between the electric motor (51) for starting the engine and this intake system (38) toward the top of the cylinder block (30) that makes up this drive pulley (58). This main body of the engine (27) 2. A motorcycle under claim 1 in which: the fuel injection valve (42) is positioned on a portion of the intake system (38) facing the electric motor (96) for the gear assembly and the electric motor (51) for starting the engine. 3. A motorcycle under claim 1 or 2 in which the electric motor (96) for the gearbox and the electric motor (51) for the starter are mounted on the main body of the engine (27) in such a way that the axis of rotation of these motors is made to be aligned in the direction of the width of the vehicle body (F); and the reduction gear mechanism (97) of the gearbox and the reduction gear mechanism (52) for the starter, which are mounted between the electric motor (51) for the starter and the crankshaft (28), are mounted on either side through the cylinder axis (C) in the direction of the crankshaft (28). 4. Any motorcycle under any of the claims 1 to 3, in which the electric motor (96) for this gear shift, in its side view, is positioned below the straight line (L) connecting the upper end of the fuel injection valve (42) and the axis of rotation of the electric motor (51) for starting. 5. Any motorcycle under any of the claims 1 through 4 where: the midsection of the axis of rotation of the electric motor (96) for the gearbox and the axis of rotation of the electric motor (51) for the engine, which extends along the width of the vehicle body (F), shall be significantly positioned at the center of the main body of the engine (27), which extends along the axis of the crankshaft (28).