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Pub. No.:    WO/2016/091290    International Application No.:    PCT/EP2014/077082
Publication Date: 16.06.2016 International Filing Date: 09.12.2014
F16H 25/22 (2006.01)
Applicants: AKTIEBOLAGET SKF [SE/SE]; S-41 550 Göteborg (SE)
Inventors: DUBUS, Jerome; (FR).
BOCH, Christian; (FR)
Agent: MYON, Gérard; (FR)
Priority Data:
Abstract: front page image
(EN)This planetary roller screw mechanism (2) comprises a screw shaft (4) provided with at least one external thread (T4), a nut (6) provided with at least three internal threads (T6) and at least three rollers (8) arranged, radially with respect to a central axis (X4) of the screw shaft, between the screw shaft and the nut. Each roller (8) is provided with at least two external threads (T81, T82). The number of external threads (T4) of the screw shaft (4) is a multiple of the number of external threads (T8) of a roller (8). The number of internal threads (T6) of the nut (6) is a multiple of the number of external threads (T8) of a roller (8).
(FR)L'invention porte sur un mécanisme de vis à rouleaux planétaires (2), lequel mécanisme comprend un arbre de vis (4) comportant au moins un filetage externe (4), un écrou (6) comportant au moins trois filetages internes (T6) et au moins trois rouleaux (8) disposés, radialement par rapport à un axe central (X4) de l'arbre de vis, entre l'arbre de vis et l'écrou. Chaque rouleau (8) comporte au moins deux filetages externes (T81, T82). Le nombre de filetages externes (T4) de l'arbre de vis (4) est un multiple du nombre de filetages externes (T8) d'un rouleau (8). Le nombre de filetages internes (T6) de l'écrou (6) est un multiple du nombre de filetages externes (T8) d'un rouleau (8).
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)