GB992022A - Improvements in clutches comprising declutching levers - Google Patents

Abstract

992,022. Friction clutches. FRANCAISE DU FERODO S.A. Nov. 23, 1961 [Nov. 23, 1960], No. 41997/61. Heading F2C. In a friction clutch comprising a cover 16 secured to a flywheel 10 and having driving connection with a pressure plate 11 movable axially towards the flywheel to engage a driven member 12, and away from the flywheel by levers 18 mounted on the cover, openings in the cover have reinforcement plates 32 at their edges. The reinforcement plates may extend or the whole or part of the periphery of the openings and serve as abutments for the driving bosses 28 of the pressure plate. Additional reinforcement may be provided in the form of angle plates 33 which extend radially inwards to retain the outer pivot pins 27 of the needle bearings 27<SP>1</SP> carrying the clutch release levers 18. The release levers 18 are pivoted on needle bearings 20 on pins 19 carried by yokes 21 secured to the cover at a position which has been rendered more flexible by perforations 37. The perforations may take several forms or the angularity of the levers may be accommodated by mounting the yokes on plates having restricted movement in openings in the cover. The inner ends of the release levers carry rollers 44 engaged by perforated discs 24, 25, 26 acted on by the clutch thrust bearing. The disc 25 has a forwardly projecting flange 25a, notched to engage the levers for rotation therewith, and the rollers 44 are retained against the disc 26 by mousetrap springs 46.