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1. (WO2015127408) APPARATUS FOR TIGHTENING THREADED FASTENERS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/127408 International Application No.: PCT/US2015/017172
Publication Date: 27.08.2015 International Filing Date: 23.02.2015
IPC:
B25B 21/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
25
HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
B
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
21
Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
Applicants: HYTORC DIVISION UNEX CORPORATION[US/US]; 333 Route 17 North Mahwah, NJ 07430, US
Inventors: KOPPENHOEFER, Peter; US
Agent: BENDER, Justin, B.; US
Priority Data:
61/942,69621.02.2014US
PCT/US2014/03228929.03.2014US
Title (EN) APPARATUS FOR TIGHTENING THREADED FASTENERS
(FR) APPAREIL POUR SERRER DES ÉLÉMENTS DE FIXATION FILETÉS
Abstract:
(EN) According to a first aspect of the invention we provide an automatic reaction pawl- assembly ("ARPA") which includes; a shaft assembly; a pawl fixed rotatably relative to the shaft assembly; and a torsion lever torsionally coupled with the paw) about the shaft assembly. Advantageously the ARPA enhances belting efficiency, increases torque accuracy and maximises operator safety. Torsion springs of the shaft assembly overcome a housing spring and automatically disengage the pawl from a ratchet wheel. The pawl releases without advancing the fastener, touching the tool or raising the hydraulic pressure beyond an intended torque value. This allows for hands free operation of one or more tools. During SWULTORC(R) the operator no longer needs to determine which tool; is locked on to its fastener.
(FR) Un premier aspect de l'invention se rapporte à un ensemble cliquet d’arrêt automatique (ensemble ARPA) qui comprend : un ensemble arbre ; un cliquet fixé de manière rotative à l’ensemble arbre ; et un levier de torsion couplé en torsion au cliquet autour de l’ensemble arbre. L’ensemble ARPA améliore avantageusement l'efficacité de la courroie, augmente la précision de couple et rend maximale la sécurité de l'opérateur. Des ressorts de torsion de l'ensemble arbre ont plus de force qu’un ressort de boîtier et désengagent automatiquement le cliquet de la roue à rochet. Le cliquet se libère sans faire avancer l'élément de fixation, sans toucher l'outil ou sans élever la pression hydraulique au-delà d'une valeur de couple voulue. Cela permet un fonctionnement mains libres d'un ou de plusieurs outils. Durant SWULTORC(R), l'opérateur n'a plus besoin de déterminer quel outil est verrouillé sur son élément de fixation.
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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, 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 (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)