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:
Jan. 24, 1984
Filed:
Jun. 15, 1981
Toyota Jidosha Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
In a torque transmission apparatus of an automatic transmission for an automotive vehicle, a direct coupling clutch is provided in parallel to a fluid type torque converter. The direct coupling clutch comprises; a first clutch element connected to an input shaft or an output shaft; a first circular coupling element engaging a second clutch element disposed in an opposing relation to the first clutch element, in a manner to effect the relative movement to the second clutch element in the axial direction alone thereof; second and third circular coupling elements coupled to each other at a spacing from each other, with the first circular coupling element interposed therebetween, and adapted to rotate relative to the first circular coupling element through a given angle; and compression coil springs retained in the first circular coupling element and engaging the second and third circular coupling elements, thereby absorbing shock due to the relative rotation of the first circular coupling element to the second and third circular coupling elements; the compression coil springs having a surface hardness nearly equal to the surface hardness of the compression-coil-spring retaining portions of the first circular element and the engaging portions of the second and third circular elements.