Abstract: The present disclosure relates to a suspension system (200) that is installed on a vehicle and is capable of performing functions including park locking, returning momentum, tilt limiting and rear suspension. The suspension system (200) comprises a rear suspension mounting structure (302), a rear suspension swing arm (306), a tilt limiting structure (201), and a tilt restoring structure (202). The rear suspension swing arm (306) is pivotally coupled to the rear suspension mounting structure (302) and configured to rotate about the rear suspension mounting structure (302) in response to a tilting movement of the vehicle. The tilt limiting structure (201) is configured to mechanically inhibit the tilting movement when a tilt angle of the vehicle exceeds an instantly-calculated tilt angle value. The tilt restoring structure (202) is configured to apply a force in response to the tilting movement.

Abstract: The present disclosure relates to a suspension system (200) that is installed on a vehicle and is capable of performing functions including park locking, returning momentum, tilt limiting and rear suspension. The suspension system (200) comprises a rear suspension mounting structure (302), a rear suspension swing arm (306), a tilt limiting structure (201), and a tilt restoring structure (202). The rear suspension swing arm (306) is pivotally coupled to the rear suspension mounting structure (302) and configured to rotate about the rear suspension mounting structure (302) in response to a tilting movement of the vehicle. The tilt limiting structure (201) is configured to mechanically inhibit the tilting movement when a tilt angle of the vehicle exceeds an instantly-calculated tilt angle value. The tilt restoring structure (202) is configured to apply a force in response to the tilting movement.

Abstract: A bicycle stepping apparatus to increase the moment of force and save manual stepping labor has a stepping means located between a sprocket and a crank of a bicycle. The stepping means has a socket wrench which has a hub on one end with ratchet teeth formed thereon to house a flywheel. The flywheel has a gear engageable with the hub. The axis of the flywheel is coupled on the axle of the sprocket and fastened by a nut. The socket wrench has another end opposite to the hub that has an elongate sliding track formed on the bottom side to slidable hold a pair of first bearings of an auxiliary bar. The auxiliary bar has a steel ring on the bottom end with a pair of second bearings coupled on two sides to allow a shaft of a pedal to run through. The socket wrench can increase the moment of force to save manual stepping labor.

Abstract: A bicycle stepping apparatus to increase the moment of force and save manual stepping labor has a stepping means located between a sprocket and a crank of a bicycle. The stepping means has a socket wrench which has a hub on one end with ratchet teeth formed thereon to house a flywheel. The flywheel has a gear engageable with the hub. The axis of the flywheel is coupled on the axle of the sprocket and fastened by a nut. The socket wrench has another end opposite to the hub that has an elongate sliding track formed on the bottom side to slidable hold a pair of first bearings of an auxiliary bar. The auxiliary bar has a steel ring on the bottom end with a pair of second bearings coupled on two sides to allow a shaft of a pedal to run through. The socket wrench can increase the moment of force to save manual stepping labor.