The invention provides an integrally formed bicycle chain wheel which comprises a chain wheel body, chain block plates on the two sides of the chain wheel body and a right crank provided with a radial force transfer claw. Via holes are formed in the wheel surface of the chain wheel body, and the chain block plates on the two sides of the chain wheel body and the right crank provided with the radial force transfer claw are one-piece castings. Casting connection parts, connected with the chain block plates on the two sides of the chain wheel body are arranged in the via holes in the wheel surface of the chain wheel body respectively, the right crank is provided with a shaft sleeve, the right crank and the shaft sleeve are integrated, and the right crank is supported on a middle shaft through the shaft sleeve. The chain block plates on the two sides of the chain wheel body, the right crank and the radial force transfer claw of the right crank are the one-piece castings and are integrated with the chain wheel body, so that rivets or screws used for assembly are not arranged among the parts of the chain wheel, and the defect that the part machining and assembling process of an existing chain wheel with a chain disengaging prevention function is tedious is overcome. The chain wheel has the advantages that the structure is novel, use is convenient, and the whole structure is reliable and can not loose.
Integrally formed bicycle chain wheel
2015-08-12
Patent
Electronic Resource
English
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
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