Bicycle frame structure

• Main Author: CHEN DINGKUN
• Format: Patent
• Language: English
• Published: 22.10.2014
• Subjects: CYCLE AXLE SUSPENSIONS; CYCLE FRAMES; CYCLE SIDE-CARS, FORECARS, OR THE LIKE; CYCLE STEERING DEVICES; CYCLES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; PERFORMING OPERATIONS; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES; TRANSPORTING

The utility discloses a bicycle frame structure providing the special modeling visual effect. The bicycle frame structure comprises a combination of an arcuate carrying rod and a crank arm which comprise first segments, middle segments connecting with the first segments and second segments connecting with the middle segments respectively. The first segment of the crank arm is provided with a combining portion; the first segment of the arcuate carrying rod and one end of an auxiliary carrying rod are linked with a pivoting portion. The pivoting portion and the combining portion are in the same reference axis and are pivoted to a front fork provided with a handle and a front wheel. Meanwhile, the other end of the auxiliary carrying rod and the second segment of the crank arm are connected to a shaft seat and one end of a bottom fork; the other end of the bottom fork and the second segment of the arcuate carrying rod are connected and are provided with a rear wheel, and a bicycle assembly with high structural strength is provided.