SG11201807347UA - Manual lift system for bed power assist wheel - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization MD 1111101110101011111 HO 11111011101 10110E1M 010 111111111011011# International Bureau .. .... ..Yejd ..... .....!;,,, (10) International Publication Number (43) International Publication Date WO 2017/151817 Al 8 September 2017 (08.09.2017) WIP0 I PCT (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every A61G 7/012 (2006.01) A61G 7/018 (2006.01) kind of national protection available): AE, AG, AL, AM, A61G 7/002 (2006.01) A61G 7/05 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, A61G 7/015 (2006.01) A61G 7/053 (2006.01) 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, (21) International Application Number: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, PCT/US2017/020275 KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, (22) International Filing Date: MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, 1 March 2017 (01.03.2017) 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, (25) Filing Language: English TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, (26) Publication Language: English ZA, ZM, ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 62/301,928 1 March 2016 (01.03.2016) US kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (71) Applicant: HUNTLEIGH TECHNOLOGY LIMITED TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, [GB/GB]; ArjoHuntleigh House, Houghton Hall Business TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, Park, Houghton Regis, Dunstable, Bedfordshire LU5 SXF DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, (GB). LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, (72) Inventors: WILSON, Kevin; 1835 Vinca Manor, San SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, Antonio, TX 78260 (US). DELLACA, Thomas, Anthony; GW, KM, ML, MR, NE, SN, TD, TG). — 19302 Atoko Way, San Antonio, TX 78256 (US). Published: _ (74) Agent: DOE, Grace; Getinge Group, 1300 MacArthur — with international search report (Art. 21(3)) = Boulevard, Mahwah, NJ 07430 (US). = = (54) Title: = _ = = = __ = _ = - _ = 1-1 3.1.2 .4 IN Il Ot 11 11 1) =J MANUAL LIFT , Fig. 1 50 SYSTEM FOR BED POWER 78 76 58 ASSIST WHEEL 108 112 (57) : A lift mechanism for a wheel as- sembly is disclosed. The lift mechanism includes a lever arm having a first axis of rotation, and a first torque transfer plate having a second axis of rotation coincident with the first axis of rotation. A lift block is engagable by the first torque trans- fer plate and has a first angularly disposed surface and a resting surface adjacent to the first angu- larly disposed surface. The lift mechanism is con- figured such that rotation of the lever arm causes the first torque transfer plate to rotate into en- gagement with the lift block, thereby causing lin- ear motion of the lift block. The wheel assembly is raised and lowered by contact between a por- tion of the wheel assembly and the first angularly disposed surface of the lift block and held in a raised position when the portion of the wheel as- sembly is positioned with respect to the resting surface. 112 11 IN 11 © ei O