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:
Feb. 17, 1998
Filed:
Aug. 30, 1996
Exedy Corporation, Osaka, JP;
Abstract
In a first embodiment, a clutch disc assembly has a retaining plate 5, a hub 2, a first coil spring 6, a second coil spring 7, and a first friction washer 8. A connecting plate 3 is positioned in an outer circumference of the of the hub 2. The first coil spring elastically couples the connecting plate 3 and the hub 2 in a circular direction. The second coil spring 7 elastically couples the retaining plate 5 and the connecting plate 3 in a circular direction and is more excellent in rigidity than the first coil spring 6. The first friction washer 8 includes a first friction member 13 positioned between the retaining plate 5 and the hub 2, a second friction member 14 positioned between the connecting plate 3 and the retaining plate 5, and a coupling element coupling the first and second friction members 13 and 14 and elastically deformable in axial directions. In a second embodiment, a friction resistance generating mechanism 108, a first friction washer 114 is in contact with a side surface of a flange in a hub 102. A second friction washer 115 is in contact with a side surface of a sub-plate 105 and engages the first friction washer 114 so as to rotate along with it in unity in circular directions and to move relative to it in axial directions. A first conical spring 116 urges the first friction washer 114 toward the flange. A second conical spring 117 urges the second friction washer 115 toward the sub-plate 105. Only one of the first friction washer 114 and the second friction washer 115 has snap projections and stem-like projections which engage a retaining plate 104 so as to rotate along with it in unit in circular directions and to move relative to it in axial directions.