A pet and human tricycle device is provided. The device is comprised of a tricycle comprised of a secondary frame. The secondary frame is comprised of a rotating belt that can be used as a manual treadmill for a pet to run alongside the user while the user pedals the tricycle. The pet can further be secured to the secondary frame during use. The device is self-propelled by the pet such that the pet can run at its own pace, and wherein rotation of the belt can be inhibited by the user as desired via at least one mechanism.

A pet and human tricycle device is provided. The device is comprised of a tricycle comprised of a secondary frame. The secondary frame is comprised of a rotating belt that can be used as a manual treadmill for a pet to run alongside the user while the user pedals the tricycle. The pet can further be secured to the secondary frame during use. The device is self-propelled by the pet such that the pet can run at its own pace, and wherein rotation of the belt can be inhibited by the user as desired via at least one mechanism.

The invention relates to a clutch device for selective transmission of a torque from a first shaft or hub to a second shaft or hub, in particular for a gear-shifting system for a bicycle. The clutch device has first and second clutch halves, an opening device adapted to generate, from an operating torque with which the first clutch half is supplied, in particular by means of the operation of the bicycle with the gear-shifting system, an opening force by means of which the clutch device is opened, as well as an actuating device for controlling the opening device.

According to the invention, the opening device is arranged spatially separated from the torque transmission region of the clutch device, i.e., from that spatial region at which, when the clutch device is closed, a torque transmission from the first to the second clutch half may take place.

Utilizing the operating torque to generate the opening force for the clutch device facilitates opening the clutch device and thus shifting under load.

The invention relates to a clutch device for selective transmission of a torque from a first shaft or hub to a second shaft or hub, in particular for a gear-shifting system for a bicycle. The clutch device has first and second clutch halves, an opening device adapted to generate, from an operating torque with which the first clutch half is supplied, in particular by means of the operation of the bicycle with the gear-shifting system, an opening force by means of which the clutch device is opened, as well as an actuating device for controlling the opening device.

According to the invention, the opening device is arranged spatially separated from the torque transmission region of the clutch device, i.e., from that spatial region at which, when the clutch device is closed, a torque transmission from the first to the second clutch half may take place.

Utilizing the operating torque to generate the opening force for the clutch device facilitates opening the clutch device and thus shifting under load.

The present invention relates to a bicycle with a central controlling computer, including a bicycle shifting device for shifting of a bicycle gear, including a shifting control unit for receiving of shifting instructions from the central controlling computer or a further control unit, a power receiving module, such as including an electrical connector, at least one shifting motor, for providing a shifting motion for driving a shifting assembly for actuating of a gear actuator, the shifting assembly being configured to transfer the shifting motion from the shifting motor to the gear actuator, the gear actuator being configured to transfer the shifting motion to the bicycle gear, The shifting control unit, by means of communication with and controlling by the central controlling computer of the bicycle, is configured as a subsystem of the bicycle, and the shifting control unit shifts the bicycle gear on the basis of primary shifting instructions and/or secondary shifting instructions from the main control unit, the motor control unit, and/or a further control unit.

An arrangement for actuating a shift element for a bottom bracket gearbox (1) includes a shift ring (4) rotatably mounted in a housing (3) and assigned to a gearbox component. A shift pawl (5) for locking or releasing the shift ring (4) is assigned to the shift ring (4) for shifting a gear stage. A support region mechanically reinforces the housing (3) and is provided at least along a contact region (14) between an inner wall (8) of the housing (3) and an outer circumference of the shift ring (4). The contact region (14) is defined by reaction forces (16) acting when the shift ring (4) is locked.

An arrangement for actuating a shift element for a bottom bracket gearbox (1) includes a shift ring (4) rotatably mounted in a housing (3) and assigned to a gearbox component. A shift pawl (5) for locking or releasing the shift ring (4) is assigned to the shift ring (4) for shifting a gear stage. A support region mechanically reinforces the housing (3) and is provided at least along a contact region (14) between an inner wall (8) of the housing (3) and an outer circumference of the shift ring (4). The contact region (14) is defined by reaction forces (16) acting when the shift ring (4) is locked.

A control system includes a controller configured to control an actuator and at least one transmission such that a chain is driven by the actuator and a shifting operation is performed by the at least one transmission. In a case where a pedal is operated during the shifting operation, the controller is configured to control the actuator so that the shifting operation is stopped in accordance with a result of comparison with a predetermined threshold.

A control system includes a controller configured to control an actuator and at least one transmission such that a chain is driven by the actuator and a shifting operation is performed by the at least one transmission. In a case where a pedal is operated during the shifting operation, the controller is configured to control the actuator so that the shifting operation is stopped in accordance with a result of comparison with a predetermined threshold.

A system and method for operating a pedally propelled vehicle gear system, includes a multi-speed gear configured to provide varying gear ratios between a gear input element and a gear output element, wherein the method includes receiving a shift control signal indicating that a gear shift should be performed, providing a boost control signal to the motor to run at a boost torque bT for a boost torque time period tbT, providing a dip control signal 154 to the motor to run at a dip torque dT for a dip torque time period tdT, wherein the boost torque is higher than the dip torque.