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1. (WO2010084024) A VEHICLE CLUTCH WITH VARIABLE LEVER RATIO
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/084024 International Application No.: PCT/EP2010/000446
Publication Date: 29.07.2010 International Filing Date: 26.01.2010
Chapter 2 Demand Filed: 26.11.2010
IPC:
F16D 13/48 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
D
COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
13
Friction clutches
22
with axially-movable clutching members
38
with flat clutching surfaces, e.g. discs
46
in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member
48
with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
Applicants:
VOLVO LASTVAGNAR AB [SE/SE]; SE-405 08 Göteborg, SE (AllExceptUS)
CARLSSON, Lars-Erik [SE/SE]; SE (UsOnly)
SJÖQVIST, Fredrik [SE/SE]; SE (UsOnly)
Inventors:
CARLSSON, Lars-Erik; SE
SJÖQVIST, Fredrik; SE
Agent:
FRÖHLING, Werner; Volvo Technology Corporation Corporate Patents, 06820, M1.7 SE-405 08 Göteborg, SE
Priority Data:
61/147,40126.01.2009US
Title (EN) A VEHICLE CLUTCH WITH VARIABLE LEVER RATIO
(FR) EMBRAYAGE DE VÉHICULE À RAPPORT DE LEVIER VARIABLE
Abstract:
(EN) A vehicle clutch comprising a clutch disc (111, 6); a moveable pressure plate (307, 8); a plurality of clutch levers (106, 2); an actuator (121) to cause said pressure plate to move by pivoting said clutch levers; where each of said clutch levers are pivotable around: a first fulcrum (306, 9), which is part of a clutch housing; - a second fulcrum (308, 9), which is part of said pressure plate, and a third fulcrum (122, 310, 9), which is part of said actuator; where a pivot surface (S, S12) of each of said fulcrums around which said clutch levers pivot with a rolling action over said pivot surface is defined by a radius (r, r12), which measures from a geometrical centre (C) in each of said fulcrums and out to said pivot surface. A magnitude of said radius varies along said pivot surface in order to have a lever ratio of said clutch levers that varies as said clutch levers pivot.
(FR) L'invention concerne un embrayage de véhicule comportant un disque d'embrayage (111, 6); un plateau de pression mobile (307, 8); une pluralité de leviers d'embrayage (106, 2); un actionneur (121) amenant ledit plateau de pression à se déplacer par le pivotement desdits leviers d'embrayage; chacun desdits leviers d'embrayage étant en mesure d'être pivoté autour : d'un premier point d'appui (306, 9), qui fait partie d'un carter d'embrayage; d'un deuxième point d'appui (308, 9), qui fait partie dudit plateau de pression, et d'un troisième point d'appui (122, 310, 9), qui fait partie dudit actionneur; une surface de pivotement (S, S12) de chacun desdits points d'appui autour desquels lesdits leviers d'embrayage pivotent avec une action de roulement sur ladite surface de pivotement étant délimitée par un rayon (r, r12), que l'on mesure à partir d'un centre géométrique (C) dans chacun desdits points d'appui et jusqu'à ladite surface de pivotement. Une ampleur dudit rayon varie le long de ladite surface de pivotement afin d'avoir un rapport de levier desdits leviers d'embrayage qui varie alors que lesdits leviers d'embrayage pivotent.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2389523US20110297502