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:
Mar. 26, 2002
Filed:
May. 19, 2000
Sen-Jung Chen, Taipei City, TW;
Other;
Abstract
A differential gear apparatus includes a differential casing having a bearing surface for journalling of a right axle, two cavities at opposite sides of the bearing surface, and two radially extending holes formed in an outer annular wall thereof and communicating with the cavities such that two shafts are fitted therein and extend into the cavities. Two differential pinions are mounted respectively and rotatably on the shafts. A right bevel wheel is mounted on and is rotatable with the right axle, and meshes with the differential pinions. A left bevel wheel is mounted on and is rotatable with the differential casing and meshes with the differential pinions. A ring gear member has an outer toothed rim portion adapted to engage and be driven by a pinion mechanism, and an inner rim portion fittingly sleeved on the differential casing. A fastening member is disposed to releasably secure the ring gear member to the differential casing so as to inhibit rotating movement of the ring gear member relative to the differential casing. As such, the differential pinions are connected to the differential casing by the shafts, thereby preventing the movement of the differential pinions in an axial direction so as to provide a steady transmission and reduce the noise resulting from unsteady connection therebetween.