MINIMIZE Russian patent published in 2004 - IPC

FIELD: transport engineering; bicycles. SUBSTANCE: invention relates to vehicles set into motion by muscular power of rider. Frame of proposed minimize contains bracket 2 of bottom bracket and tube 3 coupled with head tube 4. Bottom bracket 5 of chain drive with cranks, pedals and drive sprocket is arranged over front wheel 6. Tube 3 is coupled with fork 7 and stays of rear wheel 9 by means of hinge joint 10. Saddle 11 with back 12 and bracket 13 is installed on frame by means of lock 14, rod 15 and saddle hinge post 16 with strut 17 and movable stop 18. rod 19 of handlebar 20 is coupled with rod 21 of front wheel fork 22 through hinge joint 23 and with bottom bracket 5 through strut 24 with bearing 25. Bicycle is provided with chain tensioner 26 of driven strand of chain 27 and derailleur 28 to rear wheel sprocket cluster 29. EFFECT: provision of optimum distribution of load on bicycle wheels, improved rigidity of construction and performance characteristics. 3 dwg