The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2002
Filed:
Jan. 17, 2001
Hubert Chen, Taichung Hsien, TW;
Kun Teng Industry Co., Ltd., Taichung Hsien, TW;
Abstract
A freewheeling hub device is adapted to be mounted rotatably on an axle of a bicycle, and includes a hub shell which can be driven by a clockwise rotation of a driving barrel to rotate for forward movement of a bicycle wheel when a coupling socket engages threadedly the driving barrel and engages frictionally the hub shell. A coiled spring is disposed between the hub shell and the coupling socket such that a sudden termination of the clockwise rotation of the driving barrel, while the bicycle wheel continues with the forward movement due to the action of inertia, imparts a force from the hub shell to transmit to and along the coiled spring, which can drive the coupling socket to rotate clockwise to permit screwing-out movement of the coupling socket relative to the driving barrel, thereby disengaging the coupling socket from the hub shell so as not to rotate the driving barrel as well as bicycle pedals and thereby preventing the rider's legs from injury when the bicycle is pulled to move backward using the rider's hands.