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1. (WO2017031911) FOLDABLE BICYCLE FRAME

Pub. No.:    WO/2017/031911    International Application No.:    PCT/CN2016/000426
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Sat Aug 06 01:59:59 CEST 2016
IPC: B62K 15/00
Applicants: SHU, Xiushan
舒秀山
Inventors: SHU, Xiushan
舒秀山
Title: FOLDABLE BICYCLE FRAME
Abstract:
A foldable bicycle frame comprises a front fork assembly (11), a cross beam assembly, a rear wheel support assembly (31, 32, 33), and a saddle assembly (53, 54). The front fork assembly (11) is disposed on a front wheel assembly. The rear wheel support assembly (31, 32, 33) is disposed on a rear wheel assembly. The cross beam assembly, a cross handle assembly disposed on the front fork assembly (11), a saddle assembly (53, 54) disposed on the rear wheel support assembly (31, 32, 33), and a driving and transmission assembly (62, 63) are disposed between the front fork assembly (11) and the rear wheel support assembly (31, 32, 33). In the present invention, by arranging a plurality of X-shaped telescopic mechanisms and a quick-locking device (21), the bicycle frame can be folded after quick-unlocking, and the bicycle frame can be tightly locked after being unfolded; the bicycle frame after being folded has a small size, so that the bicycle has a small size, a light weight and is easy to carry.