This invention discloses uninterrupted shifting in transmissions with the use of controlled rotation to achieve desired profile for input to output ratio, thereby eliminating synchronized clutch. Controlled rotation achieved using non-circular gears or Geneva pin and slot wheel mechanism with a customized path for the slot, is used to achieve multiple speed/infinitely variable transmission ratios and/or to transition from one transmission ratio to another. The transition happens over multiple rotations of the input making it highly suited for high torque applications. Since it is not using sprag or one way bearing engine breaking can be achieved. Infinitely Variable Transmission offers steady and uniform output for a steady and uniform input. With co-axial input and output, using planetary gear system, the output can be made continuous from forward to reverse. Multi-Speed uninterrupted shifting is achieved without the need for synchronizers and using a dog clutch or similar device.

A saddle-type vehicle includes a power unit including a multistage transmission having a plurality of gear positions, a transmission actuating mechanism for changing the gear positions, a shift spindle as an input shaft of the transmission actuating mechanism, a crankcase housing therein the multistage transmission and the transmission actuating mechanism, and a crankcase cover covering a side portion of the crankcase. The shift spindle is disposed in the periphery of the crankcase cover and is coupled to a shift actuator mounted on the crankcase cover by a joint rod. Such saddle-type vehicle having a power unit with a shift spindle movable by a shift actuator, in which the shift spindle and the shift actuator are combined with each other in a small-size layout with a joint rod joining the shift spindle and the shift actuator to each other, allows the joint rod to be installed in position with ease.

Transmission systems, disconnect mechanisms, and methods of assembling disconnect mechanisms are envisioned. A disconnect mechanism is adapted to selectively decouple a driving device from a driven device. The disconnect mechanism includes a lever, an inner shaft, an outer shaft, and a housing. The inner shaft is coupled to the lever, the outer shaft is coupled to the inner shaft, and the housing at least partially houses the inner shaft and the outer shaft.

Transmission systems, disconnect mechanisms, and methods of assembling disconnect mechanisms are envisioned. A disconnect mechanism is adapted to selectively decouple a driving device from a driven device. The disconnect mechanism includes a lever, an inner shaft, an outer shaft, and a housing. The inner shaft is coupled to the lever, the outer shaft is coupled to the inner shaft, and the housing at least partially houses the inner shaft and the outer shaft.

A bicycle drive system includes a front face gear, a rear face gear, a drive shaft, and a front roller-toothed gear assembly coupled to the first end of the drive shaft, and a rear roller-toothed gear assembly coupled to the second end of the drive shaft. Both the front roller-toothed gear assembly and the rear roller-toothed gear assembly include one or more roller elements. The roller-toothed gear assemblies are advantageous in ensuring the bicycle drive system is highly efficient, and is only minimally or not at all affected by dirt, water, contaminants, or other foreign matter typically experienced in un-clean riding conditions.

A drive train is used at least including an input shaft and an output shaft. A clutch member is rotatable by a clutch shaft about an axis of rotation. The clutch shaft is supported for lateral movement along the axis of rotation to move the clutch member to cooperate with the drive train at a first lateral position to cause the output shaft to turn and to move the clutch member to a second lateral position to disengage the output shaft from rotation of the input shaft. A permanent magnet is supported by one end of the clutch shaft and arranged for receiving an external magnetic biasing force along the axis of rotation to selectively move the clutch member between the first and second lateral positions. A traveling shaft can be used to support a selected gear for movement by the permanent magnet to implement transmission and reversing configurations.

A drive train is used at least including an input shaft and an output shaft. A clutch member is rotatable by a clutch shaft about an axis of rotation. The clutch shaft is supported for lateral movement along the axis of rotation to move the clutch member to cooperate with the drive train at a first lateral position to cause the output shaft to turn and to move the clutch member to a second lateral position to disengage the output shaft from rotation of the input shaft. A permanent magnet is supported by one end of the clutch shaft and arranged for receiving an external magnetic biasing force along the axis of rotation to selectively move the clutch member between the first and second lateral positions. A traveling shaft can be used to support a selected gear for movement by the permanent magnet to implement transmission and reversing configurations.

A work apparatus has a drive motor and a work tool driven in a rotating manner by the drive motor. The work tool is at least partially covered by a protective hood which is mounted pivotably about the rotational axis of the work tool. A control unit is provided for controlling at least one component of the work apparatus. The work apparatus has a detection unit for detecting at least one position of the protective hood. The control unit is configured for controlling the at least one component of the work apparatus depending on the detected position of the protective hood. In a method for operating a work apparatus, the detection unit detects at least one position of the protective hood and supplies the information to the control unit. The control unit activates the at least one component depending on the detected position of the protective hood.

An engine power delivery system provides bifurcated power-flow with transmission bypass. An engine power delivery system includes an engine that has an output element. A transmission has an input shaft coupled with the engine output element, wherein the engine is configured to generate more power than the transmission is capable of handling. A multi-speed gearing arrangement is included in the transmission and is coupled to the input shaft. An output shaft is coupled with the gearing arrangement and a vehicle axle is coupled with the output shaft to be driven thereby. A generator is configured to be intermittently driven by the engine. A motor is configured to receive electric power from the generator and to drive the vehicle axle without the transmission exceeding the maximum power rating.

A drivetrain assembly for a motor vehicle such as a tractor-trailer rig wherein the drivetrain assembly includes a transmission and a rear end differential that have gearing operable to lower the operational engine RPM's of the vehicle. The transmission of the present invention includes a gearing ratio having a stepped percentage difference intermediate each gear. The final gear ratio of the transmission ranges between 0.47 to 1 and 0.63 to 1. A rear end gear ratio is present within the range of 3.08 to 1 to 3.90 to 1. The rear end gear ratio is approximately five and a half to six and a half greater than the ratio of the final gear of the transmission. The engine RPM's of the vehicle are at a lower RPM when the transmission is in its final gear or speed resulting in less fuel injection cycles and improved fuel economy.