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, 1989
Filed:
Dec. 16, 1987
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
In a gear synchronizer mechanism including a gear member rotatable on a shaft and having a cylindrical hub portion, a hub member mounted on the shaft for rotation therewith, a clutch sleeve formed at its one side with an internal conical surface and at its inner periphery with internal spline teeth in continual engagement with external spline teeth of the hub member and being axially shiftable on the hub member to be engaged at its internal spline teeth with external spline teeth of the hub portion, and a synchronizer ring formed with an external conical surface for frictional engagement with the internal conical surface of the sleeve and being axially movable on the hub portion to establish synchronization between the shaft and the gear when engaged with the sleeve, the hub portion of the gear is formed at its inner periphery with an annular groove and has a plurality of circumferentially spaced radial grooves defined therein, each of which receives therein a corresponding radially movable key element, and the key elements are supported by a radially contractible annular spring disposed within the annular groove of the hub portion and are resiliently engaged with the ring under the biasing force of the spring in such a manner as to restrict axial movement of the ring in shifting operation of the clutch sleeve.