Patent ID: 6152251
Filing Date: 2000-11-28
Classification: B62K,B62M

Abstract:
A power assisted bicycle comprising:a front wheel and a rear wheel;a bicycle body frame supporting the front and rear wheels to be rotatable;a saddle mounted to the bicycle body frame on which a rider rides;a pair of pedals operatively connected to each other through a crank shaft, said bicycle body frame including a head pipe supporting the front wheel, a main pipe extending obliquely downward in a rearward direction from the head pipe, and a saddle pipe supporting the saddle at an upper end portion thereof in a standing attitude of the bicycle; anda bilateral pair of bridge pipes disposed so as to horizontally cross between the main pipe and the saddle pipe above a power unit and a battery unit mounted above the bridge pipes,wherein lower end portions of the main pipe and the saddle pipe are connected through a power unit so as to define a leg space having substantially a V-shape therebetween through which a leg of the rider moves when getting on or off the saddle, the battery unit has a rectangular parallelopiped shape, is operatively connected to the power unit and is disposed at a lowest position of the V-shaped leg space so as to extend in a horizontal direction of the bicycle, and said battery unit is arranged horizontally so as to be substantially parallel to the bridge pipes and detachably fixed to the main pipe and the saddle pipe.