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. 10, 1997
Filed:
Dec. 27, 1994
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A fluid coupling with a lock-up clutch which is capable of an improved torque transmission is provided. The fluid coupling with a lock-up clutch according to the present invention comprises, a front cover connected to an input shaft, an impeller shell connected to the front cover, a hub connected to an output shaft, a turbine shell connected to the hub at radially inner end, a driven plate assembly disposed near the outer surface of the turbine shell, a drive disc assembly disposed between the front cover and the driven plate assembly. The driven plate assembly has a driven plate which is rotatable in company with the hub, an annular friction surface disposed on the surface of front cover side of the driven plate. The drive disc assembly has a spring locator connected to the front cover, damper springs located in the spring locator, a front drive disc disposed on the front cover side of the spring locator, and a rear drive disc disposed on the driven plate assembly side of the spring locator. On the rear drive disc, a friction surface is disposed toward and selectively engageable with the annular friction surface disposed on the driven plate. The front drive disc and the rear drive disc are connected to each other at least at two different radial position and support the damper springs by co-operating with each other. Preferably, the driven plate are connected to the turbine shell at radially inner end portion and radially outer end portion so that the driven plate covers the whole outer surface of the turbine shell.