SG11201909660VA - Door closer - Google Patents

Abstract

1 O 1-1 00 1-1 O (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 25 October 2018 (25.10.2018) WIP0 I PCT iiimmoinionotiolouiciolomimmollomovoil# (10) International Publication Number WO 2018/192980 Al (51) International Patent Classification: E05F 3/10 (2006.01) (21) International Application Number: PCT/EP2018/059915 (22) International Filing Date: 18 April 2018 (18.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1706124.3 18 April 2017 (18.04.2017) GB (71) Applicant: ASTRA DOOR CONTROLS LIMITED [GB/GB]; Unit 4, Astra Business Centre, Roman Way, Pre- ston PR2 5AP (GB). (72) Inventors: REID, Alister Peter; c/o Astra Door Controls Limited, Unit 4, Astra Business Centre, Roman Way, Pre- ston PR2 5AP (GB). GALLAGHER, Philip; c/o Astra Door Controls Limited, Unit 4, Astra Business Centre, Ro- man Way, Preston PR2 5AP (GB). (74) Agent: JENKINS, Peter David et al.; PAGE WHITE & FARRER, Bedford House, John Street, London, Greater London WC1N 2BF (GB). (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, (54) Title: DOOR CLOSER 38 36 FIG. 1 (57) : A door closer for mounting between a door leaf and a door frame, the door closer comprising: an elongate housing for mounting in one of the door leaf or door frame, the elongate housing having opposite forward and rear end parts, a plunger disposed in and movable along the housing, the plunger including a ferromagnetic material, a spring biasing element disposed in the housing and applying a first biasing force to bias the plunger inwardly of the housing and away from the forward end part and towards the rear end part, a tension member having a first end connected to the plunger and a second end connected to an anchor element assembly, the anchor element assembly comprising a mounting member for mounting in the other of the door leaf or door frame, the tension member and anchor element forming a tension assembly which extends through the forward end part, and a magnetic biasing element disposed in the housing and applying a second biasing force to the ferromagnetic material to bias the plunger inwardly of the housing and away [Continued on next page] WO 2018/192980 Al MIDEDIMOMOIDEIREEMOMOHEIHREIHMEHOIMI 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)) from the forward end part and towards the rear end part, wherein the spring biasing element is adapted to apply the first biasing force over a first movement range of the plunger within the housing and the magnetic biasing element is adapted to apply the second biasing force over a second movement range of the plunger within the housing, the first movement range defining a forwardmost position of the plunger within the housing and the second movement range defining a rearmost position of the plunger within the housing.