Patent ID: 9168967
Filing Date: 2015-10-27
Classification: B21D,B62K,Y10T

Abstract:
1. A frame unit for a bicycle comprising: a left frame body in which a part of an adjusting portion, a part of a seat tube, a part of a frame, and a left stay are integrally formed; and a right frame body in which a part of the adjusting portion, a part of the seat tube, a part of the frame, and a right stay are integrally formed, wherein the seat tube and the frame are integrally formed by adjusting a length of the adjusting portion, and then the left frame body and the right frame body are coupled integrally, and wherein the left and right frame bodies are joined to each other along edges of the left and right frame bodies in a state in which a reinforcing panel is installed inside the left and right frame bodies, wherein the reinforcing panel is installed between the head tube and the frame.