Patent ID: 9308959
Filing Date: 2016-04-12
CPC Classification: B21D,B62K,Y10T

Claim Text:
1. A frame unit for a bicycle comprising: a left frame body in which a left part of a head tube, a left part of a seat tube, a left part of the frame body, and a left stay are integrally formed; a right frame body including a right part of the head tube, a right part of the seat tube, a right part of the frame body, and a right stay are integrally formed thereon; and at least a reinforcing stay coupled to inner sides of the left stay and of the right stay, wherein the left frame body and the right frame body are joined to each other along edges of the left and right frame bodies to integrally define the head tube, the seat tube, and the frame unit, and wherein a material of the at least the reinforcing stay is more rigid than a material of the left and right stays.