公开(公告)号：US20210285272A1

公开(公告)日：2021-09-16

申请号：US16905309

申请日：2020-06-18

Applicant: FOSITEK CORPORATION

Inventor： I-Hung CHIANG ,  Yung-Sheng KUO ,  Kai-Chun CHUNG

IPC: E05D11/08 ,  G06F1/16

Abstract: A hinge mechanism includes a base gudgeon and a pivot pintle. The base gudgeon has a main body and first and second tubular portions formed on the main body and respectively having coaxial first and second pivot holes. The second tubular portion has a first torque regulating formation formed on an inner surrounding wall thereof. The pivot pintle has a first pintle section rotatably inserted into and pressed-fit to the first pivot hole to produce primary frictional torque during pivoting of the pivot pintle, a second pintle section rotatably inserted into and pressed-fit to the second pivot hole to produce secondary frictional torque, and a second torque regulating formation configured to be matingly engaged with the first torque regulating formation in a part of angular positions of the pivot pintle so as to reduce the secondary frictional torque.