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. 03, 1992
Filed:
Dec. 24, 1990
Joseph D Reynolds, Climax, MI (US);
Thomas G Ore, Kalamazoo, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A pin-type, double-acting synchronizer mechanism (22) with friction clutches (24,36 and 26,38), jaw clutch (28,14b and 30,16b) and self-energizing ramps. The ramps act between a shaft (12) and a shift flange (32) which is rotatable relative to the shaft and jaw clutch members 28,30. Flange 32 includes radially inwardly extending teeth (32k) defining self-energizing ramps (32m,32n,32p,32s) which act against ramp (12d,12e,12f,12g) formed in shaft splines (12b). Three circumferentially spaced pins (40) include blocker shoulders (40c,40d) for preventing asynchronous engagement of the jaw clutches and pre-energizer surfaces (40e,40f) which each cooperate with a pre-energizer and neutral centering assembly 42. The angles of the self-energizing ramps may be varied to provide substantially the same synchronizing time for several or all of the ratio gears in a multi-ratio transmission.