AUTOMATIC INTERNAL TRANSMISSION AND BICYCLE Russian patent published in 2025 - IPC B62M11/16 

FIELD: bicycle transport.

SUBSTANCE: automatic internal transmission (100) comprises hub shaft (10), input mechanism (20), output mechanism (30), transmission mechanism (40) and automatic control mechanism (50). Transmission mechanism (40) comprises first planetary gear (41) and second planetary gear (42). Automatic gearshift control mechanism (50) comprises centrifugal unit (501) and clutch control unit (53), centrifugal unit (501) is connected to output mechanism (30) and centrifugal unit (501) is connected to clutch control unit (53). Centrifugal unit (501) can turn relative to output mechanism (30) into the first state in the first direction to drive clutch control unit (53), due to which the driving force is transmitted by means of first planetary gear (41). Centrifugal unit (501) can then turn relative to output mechanism (30) into the second state in the first direction for rotation of clutch control unit (53), due to which the driving force is transmitted by means of second planetary gear (42). Bicycle comprises a bicycle frame and automatic internal transmission (100).

EFFECT: effective prevention of “missed gear” situation and improved influence on the cyclist’s sensations when driving.

18 cl, 29 dwg