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US 11,708,874 B2Granted
Systems and methods for selectively rotationally fixing a pedaled drivetrain
AssigneeiFIT Inc.
InventorDavid E. Wrobel
Life of this patent
Estimating the term…
Abstract
A pedaled drivetrain includes a drive mechanism, a wheel, a freewheel hub, and a locking mechanism. The wheel has a rotational axis. The freewheel hub connects the drive mechanism to the wheel, and the freewheel hub transmits torque from the drive mechanism to the wheel in a first rotational direction around the rotational axis. The locking mechanism has a locked state and an unlocked state. The locked state rotationally fixes a component of the drive mechanism to the wheel relative to the rotational axis.
Claims20
A pedaled drivetrain, the drivetrain comprising:
- a drive mechanism;
- a flywheel having a rotational axis;
- a freewheel hub connecting the drive mechanism to the flywheel and configured to transmit torque from the drive mechanism to the flywheel in a first rotational direction around the rotational axis;
- a locking mechanism having a locked state and an unlocked state, the locked state configured to transmit torque from the drive mechanism to the flywheel in at least a second rotational direction around the rotational axis;
- an electric motor in communication with the locking mechanism, the electric motor moving the locking mechanism between the locked state and the unlocked state;
- and
- a lockout device to prevent movement between the locked state and the unlocked state.
4 more elements
A cycling system, the system comprising:
- a frame;
- handlebars supported by the frame;
- a drivetrain supported by the frame, the drivetrain including:
- a drive mechanism configured to receive an input torque from a user;
- a flywheel;
- a freewheel hub connecting the drive mechanism to the flywheel and configured to transmit the input torque from the drive mechanism to the flywheel in a first rotational direction of the flywheel only;
- a locking mechanism connected to the drive mechanism and the flywheel, the locking mechanism having a locked state and an unlocked state, the locked state configured to transmit the input torque to the flywheel in the first rotational direction and a second rotational direction of the flywheel, the second rotational direction being opposite the first rotational direction, and
- a lockout device to prevent movement of the locking mechanism;
- and
- a computing device in data communication with the locking mechanism and the lockout device, the computing device being configured to send a command to activate the locking mechanism.
7 more elements
An exercise device, comprising:
- a frame;
- handlebars supported by the frame;
- a drivetrain supported by the frame, the drivetrain including:
- pedals;
- a flywheel;
- a drive mechanism connecting the pedals to the flywheel
- a hub operable in an unlocked state and a locked state, wherein in the unlocked state, a first torque applied in a first direction at the pedals is transferred to the flywheel and a second torque applied in a second direction at the pedals is not transferred to the flywheel, and wherein in the locked state the first torque and the second torque are transferred to the flywheel;
- a locking mechanism connected to the drive mechanism and the flywheel, the locking mechanism being configured to move the hub between the unlocked state and the locked state;
- and
- a lockout device connected to the locking mechanism to prevent movement of the locking mechanism between the locked state and the unlocked state;
- and
- a computing device in data communication with the locking mechanism and the lockout device, the computing device being configured to send a command to activate the locking mechanism.
9 more elements
Dependencies are inferred from the claim text.