摘要:
A frame structure for a scooter-type vehicle, where a floor panel (222) is provided on a vehicle-body frame (11). A frame structure (210) includes a first cross pipe (74) connected to the rear end of a main pipe (71) extending rearward from the lower end of a head pipe (211). Engine hanger brackets (77, 77) for supporting an engine are welded to both ends of the first cross pipe. Left and right floor-supporting frames (217, 217) for supporting the floor panel are welded to the engine hanger brackets such that the welding is made within welding areas of the outer peripheries of the first cross pipe.
摘要:
In a V-belt type automatic transmissions (45) including a driving pulley (47) comprising a stationary half body (48) fixed on a crankshaft, and a movable half body (49) opposed to the stationary half body (48) and slidable in a direction of the crankshaft on the crankshaft, to reduce a noise generated at a rotation stopper on the movable half body (49) of the driving pulley (47) when a whirling motion of the crankshaft occurs. The movable half body (49) comprises a skirt-shaped flange portion (49a) holding a V-belt, and a cylindrical boss portion (49b). The boss portion (49b) has a guide groove (69) to which a driving torque from the crankshaft is transmitted. A key or pin for transmitting the driving torque of the crankshaft to the movable half body (49) is fitted between the guide groove (69) of the boss portion (49b) and a keyway formed on the crankshaft. The torque transmitting key (70) is disposed on a side of an axis of the crankshaft which is opposite to the crankpin.
摘要:
In noise reduction structure for a hybrid vehicle in which a cover covers at least part of an air intake system connected to an engine capable of giving power to a driving wheel, an exhaust muffler constituting part of an exhaust system connected to the engine, and an electric motor capable of giving power to the driving wheel, when at least part of the air intake system, the exhaust muffler constituting part of an exhaust system, and the electric motor is covered with the common cover, heat generated by the exhaust muffler is prevented from affecting the electric motor. The rotational axis of an electric motor 20 extending in the longitudinal direction of a body frame is disposed forwardly of the central position C of an exhaust muffler extending in the longitudinal direction.
摘要:
A hub unit wherein the axis is prevented from deflecting for use in electrically assisted bicycles. A single fixing support shaft (57) has opposite ends projecting outward respectively from opposite ends of a hub (7) enclosing a motor (9) and a planetary gear reduction mechanism (6) therein and having inner teeth (66a) in mesh with planetary gears (65). The rotor (4) of the motor (9) has a tubular rotating shaft (44) rotatably fitted around the support shaft (57) and is therefore rotatable free of deflection of its axis relative to the support shaft (57). The hub unit is more simplified in construction and easier to assemble than the conventional hub unit wherein the rotating shaft of the rotor (4) is separate from the support shaft (57).
摘要:
The invention provides ascooter-type motorcycle, wherein an engine including an engine main body disposed with the axial line of a cylinder bore directed forwardly is mounted on a body frame and a rear wheel is rotatably supported by a transmission case of a transmission provided between the engine and the rear wheel, which motorcycle is intended to mount a seat at a lower position and to enhance the durability of parts associated with an intake system. To achieve this, an engine main body 16 is non-swingably supported, at a position under a seat 10, by a body frame F, and a transmission case 18 is swingably supported by said engine main body 16. An intake port is provided in the engine main body 16 in such a manner as to be opened upwardly, and a throttle body 78 disposed with its axial line extending substantially in the horizontal direction is connected, at a position under said seat 10, to said intake port via an intake pipe. Further, a fuel injection valve 79 is mounted to the intake pipe 76.
摘要:
The present invention discloses an electric driving unit comprising a casing with a motor storage space, an electric motor and a speed reducer, wherein the electric motor and the speed reducer are supported by and arranged coaxially to each other in the casing, and wherein a controlling means for controlling the electric motor is provided being disposed close to the electric motor within the motor storage space formed in the casing, and an electric vehicle with such an electric driving unit.
摘要:
The invention relates to an electric drive system for a vehicle, on which a drive wheel is rotationally mounted on the frame of the vehicle in a direct or indirect manner. The inventive system contains: a force transmitting unit consisting of a wheel axle, wheel bearing, and wheel hub; an electric drive equipped with an electric motor, and; a control unit connected in an electrically conductive manner to the electric motor and having a connection to a power supply unit and to an actuator. The aim of the invention is to equip conventional vehicles with energy-saving drive systems that are free of noise and exhaust gas emissions while involving a low degree of technical complexity and few costs. To this end, the electric drive system, together with the contained electric drive equipped with the electric motor, is designed in such a manner that; the electric motor contains the force transmitting unit in its entirety, whereby its stator is directly or indirectly joined to the frame of the vehicle, and its rotor representing the wheel hub is connected to the drive wheel, and; the mounting of the rotor represents that of the drive wheel.
摘要:
A device for external rotary drive through an offset motor, comprising an external rotary assembly, offset means (2), drive motor (3) and transmission means (4), the external rotary assembly carries the hub (11) to rotation by a central shaft (12) immobilized in line with the offset means (2) fixed internally to the hub (11), on the offset means is mounted a drive motor (3) where the output shaft terminal incorporates transmission means to drive the hub (11).