Patent ID: 9120523
Filing Date: 2015-09-01
Classification: B62K

Abstract:
1. A light-weight foldable frame for bicycle, said foldable frame comprising a crossbar ( 101 ), a head tube ( 102 ), a seat tube ( 103 ), a pair of rear forks ( 104 ), handle bars ( 111 ), and a pair of front and rear locking systems ( 109 , 105 ); a front end of said crossbar ( 101 ) being configured to be fixedly connected with said head tube ( 102 ) and releasably connected with said handle bars ( 111 ) by said front locking system ( 109 ); rear end of said crossbar ( 101 ) being configured to be releasably connected with said rear forks ( 104 ) by said rear locking system ( 105 ); the rear end of said crossbar ( 101 ) being independently connected with said seat tube ( 103 ) and said rear forks ( 104 ) by two separate hinge joints ( 202 , 201 ); said rear forks ( 104 ) being pivotally movable about the hinge joint ( 201 ) with said crossbar ( 101 ) when a screw-like member ( 107 ) of said rear locking system ( 105 ) is released from an anchoring point ( 104 a ) on said rear forks ( 104 ); the foldable frame being transformed from an unfolded state to a folded state when said front locking system and rear locking system are both released wherein said head tube comprises a single-tube suspension system (