Electrically assisted bicycle which enables aerobic exercise

Details Electrically assisted bicycle which enables aerobic exercise Electrically assisted bicycle which enables aerobic exercise

2008-04-15

2008-04-15

Hurley, Kevin (Department: 3611)

Motor vehicles

Special wheel base

Rider propulsion with additional source of power, e.g.,...

C180S207100

Reexamination Certificate

active

07357209

ABSTRACT:
To provide an electromotive power assisted bicycle enabling an aerobic exercise with a light weight and simple mechanism, an electromotive power assisted bicycle1comprises a pedal effort detection means for detecting a pedal effort (99, 126), a drive unit13, a force combining mechanism for transmitting a rotational torque of a speed reducing unit to a drive shaft, and a heart rate detection sensor254. The drive unit13comprises an electric motor37and a speed reducing unit35having an electromagnetic clutch250. In a mode enabling the aerobic exercise, if the detected pedal effort is higher than the pedal effort level enabling the aerobic exercise, the drive unit13drives the electric motor37under the condition of the electromagnetic clutch250being engaged and thus assists the pedal effort with the electric force. If the detected pedal effort is lower than said pedal effort level, the electric motor is turned off under the condition of the electromagnetic clutch250being engaged, and thus applies a loading force to the pedal effort by the rotational resistance of the motor. The pedal effort level can be adjusted in response to the detected heart rate of the rider.

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International Search Report for PCT/JP03/01068; ISA/JP; Mailed: May 20, 2003.
Supplementary Search Report issued on Mar. 6, 2007.
European Examination Report dated Jul. 3, 2007 applying references already of record in the instant application.

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