Patent SG-11201909047V-A (SG)
Title: Compound planetary friction drive
Inventor: SCHORSCH JACK FLOYD
IPC: F16H13/14
Filed: 2018-03-31
Abstract: ei FIG. 1 O (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 04 October 2018 (04.10.2018) W I PO I PCT O V SID o Ho 11V 110111110 VII IE (10) International Publication Number WO 2018/178380 Al (51) International Patent Classification: Fl6H 13/06 (2006.01) Fl 6H 13/14 (2006.01) (21) International Application Number: PCT/EP2018/058371 (22) International Filing Date: 31 March 2018 (31.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 17164430.5 31 March 2017 (31.03.2017) EP (71) Applicant: IMSYSTEMS HOLDING B.V. [NL/NL]; Molengraaffsingel 12, 2629JD Delft (NL). (72) Inventor: SCHORSCH, Jack Floyd; c/o IMSystems Holding By., Molengraaffsingel 12, 2629JD Delft (NL). (74) Agent: BIRD & BIRD LLP; GroBer Grasbrook 9, 20457 Hamburg (DE). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: with international search report (Art. 21(3)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) (54) Title: COMPOUND PLANETARY FRICTION DRIVE (57) : It is described a compound planetary friction drive comprising a first sun wheel (2) and planetary wheels (3), wherein said first sun wheel (2) engages said planetary wheels (3), which planetary wheels (3) are arranged with two outer parts (3b) having a first radius (rl) and a central part (3a) having a second radius (r2), wherein the second radius (r2) differs from the first radius (rl) and transition regions (3c) are provided between the outer parts (3b) and the central part (3a), and wherein an outer ring an- nulus (1) and a central ring annulus (5) are provided that are in dri- ving engagement with the planetary wheels (3), wherein the outer ring annulus (1) has two parts between which, along the length of the planetary wheels (3), the central ring annulus (5) is disposed, wherein the first sun wheel (2) is in frictional engagement with the outer parts (3b) of the planetary wheels (3), said outer parts (3b) of the planetary wheels (3) are in frictional engagement with the parts of the outer ring annulus (1) and the central ring annulus (5) is in frictional engagement with the central part (3a) of the planetary wheels (3), wherein the planetary wheels (3) are both hollow and compressible uninterruptedly along their entire length spanning the outer parts (3b), the transition regions (3c) and the central part (3a).