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:
Oct. 24, 1995
Filed:
Feb. 09, 1994
Jung Y Huang, Taichung, TW;
Other;
Abstract
The present invention relates to a bicycle freehub having a hub body, an axle and a sprocket coupling. The axle is coaxially disposed in the hub body which has a spindle, two flanges and two ring ends. One of the ring ends has a receiving cavity and the other ring end has a bearing receiving recess. The receiving cavity provides a ratchet ring which has an outer rim and a plurality of ratchets provided along its inner circumference. The sprocket coupling has a cylindrical pawl driver at one end. The pawl driver further provides at least two recesses on its circumference for retaining two pawls thereon respectively and an annular groove along its outer periphery fpr receiving a coil spring to hold the two pawls in position. The sprocket coupling is connected with the hub body by inserting the pawl driver into the receiving cavity coaxially, thus the pawls are engaged with the ratchets for enabling said sprocket coupling to drive the hub body in a direction but is free to rotate in the other direction. A sprocket bearing is held between the sprocket coupling and the ratchet ring. Accordingly, the ratchets of the ratchet ring are more close to the central portion of the hub body than the conventional, so that it reduces the distance of transmitting force and eliminates the damaging shearing force and torque.