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1. (WO2017156559) ROCK ANCHOR FORGED HEAD ADAPTOR
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Pub. No.: WO/2017/156559 International Application No.: PCT/ZA2017/000002
Publication Date: 14.09.2017 International Filing Date: 21.02.2017
IPC:
E21D 21/00 (2006.01)
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
D
SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
21
Anchoring-bolts for roof, floor, or shaft-lining protection
Applicants:
NCM INNOVATIONS (PTY) LTD [ZA/ZA]; 109 Adcock Ingram Avenue, Aeroton 1454 Johannesburg, ZA
Inventors:
SHEPPARD, James William; ZA
Agent:
MCCALUM RADEMEYER AND FREIMOND; 390 Kent Avenue, Ferndale 2194 Randburg, ZA
Priority Data:
2016/0168311.03.2016ZA
Title (EN) ROCK ANCHOR FORGED HEAD ADAPTOR
(FR) ADAPTATEUR DE TÊTE FORGÉE D'ANCRE POUR LA ROCHE
Abstract:
(EN) The invention provides an expansion lug which engages a rock bolt to provide a tapered surface upon which an expansion sleeve of a mechanical anchor acts to radially expand to mechanically anchor the rock bolt in a rock hole, the lug including a truncated conoidal body which is defined between a first end, a second end and the tapered surface and a passage through the body which opens at each end, wherein the passage includes a chamfered section between the first end and a partition edge and a tapered section between the partition edge and the second end, along at least part of which the passage tapers outwardly towards the second end.
(FR) L'invention concerne une saillie d'expansion qui met en prise un boulon d'ancrage pour fournir une surface conique sur laquelle un manchon d'expansion d'un ancrage mécanique agit pour s'étendre radialement pour ancrer mécaniquement le boulon d'ancrage dans un trou d'ancrage, la saillie comprenant un corps tronconique qui est défini entre une première extrémité, une seconde extrémité et la surface conique et un passage à travers le corps qui s'ouvre à chaque extrémité, le passage comprenant une section chanfreinée entre la première extrémité et un bord de séparation et une section conique entre le bord de séparation et la seconde extrémité, le long d'au moins une partie de laquelle le passage se rétrécit vers l'extérieur en direction de la seconde extrémité.
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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, DJ, 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, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)