Patent ID: 9669279
Date: 2017-06-06
CPC Classifications: A63B

Claim:
1. A bicycle trainer, comprising: a base frame; a damper unit comprising a rotating wheel set, said damper unit being pivotally mounted at said base frame for allowing change of the position of said rotating wheel set relative to said base frame; a swivel frame pivotally connected to said base frame and biasable relative to said base frame between an inclined position where said swivel frame and said damper unit are capable of supporting a bicycle wheel, and a collapsed position where said swivel frame is received in said base frame and said rotating wheel set of said damper unit is kept near said swivel frame; and a locking device operable to selectively lock said damper unit to said base frame or to unlock said damper unit from said base frame for biasing relative to said base frame, wherein said damper unit comprises a carrier, said carrier comprising a shaft located at the center of said carrier, said shaft being rotatably coupled to said base frame, wherein said carrier comprises said rotating wheel set and a contact wheel, said rotating wheel set being disposed at one lateral side of said carrier away from shaft, said contact wheel being disposed to face toward said shaft, said carrier being rotatable on said shaft relative to said base frame to carry said rotating wheel set to a midpoint of said base frame at a lower side of said damper unit, and wherein said rotating wheel set of said damper unit is rotatable to a position in alignment with the center of gravity of said base frame when said damper unit is unlocked from said base frame.