公开(公告)号：US20230227119A1

公开(公告)日：2023-07-20

申请号：US18070720

申请日：2022-11-29

Applicant: Astro Tech Co., Ltd.

Inventor： JIA-HUA LYU

IPC: B62K3/02 ,  B62K19/00 ,  B62J1/08

CPC classification number: B62K3/02 ,  B62K19/00 ,  B62J1/08 ,  B62K2201/00

Abstract: A hidden-type shock absorbing bicycle frame has a front vehicle frame, a transmission assembly, a rear vehicle frame, and a damper. The front vehicle frame has a seat tube having two assembly plates. The assembly plate has an upper pivot hole and a lower pivot hole. An assembly space is formed between the assembly plates. The transmission assembly is pivotally connected to the upper pivot holes and has two front arms located in the assembly space and two rear arms located at two sides of the seat tube and extending backwardly. The rear vehicle frame is pivotally connected with the rear arms and is pivotally connected with the seat tube. The damper hidden inside the assembly space has a top end pivotally connected with the front arms and a bottom end pivotally connected to the lower pivot holes.