Patent ID: 9090302
Filing Date: 2015-07-28
Classification: B62B,B62K

Abstract:
1. A four wheeled cycle, comprising: a) a frame; b) a load carrying base; c) two front wheels; d) two rear wheels; e) a steering mechanism; f) a brake mechanism; g) a pedal mechanism; h) a chain drive mechanism; and i) a saddle unit; wherein the two front wheels are connected to a bottom of the load carrying base through front forks; the frame is a retractable frame, comprising a rear support frame, a down tube, a transverse tube, and at least two telescopic casing tube assemblies that are arranged side by side; each of the telescopic casing tube assemblies comprises a front casing tube, a middle rod, and a rear casing tube; the front casing tube is fastened to the bottom of the load carrying base and sleeves a front end of the middle rod in a movable way; the rear casing tube is fastened to and sleeves a rear end of the middle rod; a portion of the middle rod before the rear casing tube is capable of retracting into the front casing tube; a tube mouth of the front casing tube is provided with a second fastening device which is used to fasten the middle rod so as to adjust the telescopic movement of the middle rod in the front casing tube; the steering mechanism comprises a handlebar comprising a main rod, a horizontal connecting rod, steering arms fixed on a lower end of the front forks, and a movable connecting rod that is fastened to a bottom end of the main rod of the handlebar; two ends of the horizontal connecting rod are in fixed connection to the steering arms, respectively; the main rod of the handlebar comprises an upper main rod and a lower main rod which are in a pivotal connection; and the upper main rod can be adjusted within an angle between an upward vertical direction and a horizontal direction by using a regulator.