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Machine translation
1. (WO2003000978) REAL TIME CONTROL METHOD FOR NEEDLE-BONDING FIBROUS STRUCTURES AND NEEDLE-BONDING DEVICE FOR CARRYING OUT SAID METHOD
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2003/000978    International Application No.:    PCT/FR2002/001903
Publication Date: 03.01.2003 International Filing Date: 05.06.2002
Chapter 2 Demand Filed:    22.10.2002    
IPC:
D04H 18/00 (2012.01)
Applicants: MESSIER-BUGATTI [FR/FR]; Zone Aéronautique Louis Bréguet, F-78140 VELIZY-VILLACOUBLAY (FR) (For All Designated States Except US).
DUVAL, Renaud [FR/FR]; (FR) (For US Only).
MARJOLLET, Thierry [FR/FR]; (FR) (For US Only).
JEAN, Robert [FR/FR]; (FR) (For US Only)
Inventors: DUVAL, Renaud; (FR).
MARJOLLET, Thierry; (FR).
JEAN, Robert; (FR)
Agent: THEVENET, Jean-Bruno; CABINET BEAU DE LOMENIE, 158 rue de l'Université, F-75340 PARIS CEDEX 07 (FR)
Priority Data:
01/07299 05.06.2001 FR
Title (EN) REAL TIME CONTROL METHOD FOR NEEDLE-BONDING FIBROUS STRUCTURES AND NEEDLE-BONDING DEVICE FOR CARRYING OUT SAID METHOD
(FR) PROCEDE DE CONTROLE EN TEMPS REEL DE L'AIGUILLETAGE DE STRUCTURES FIBREUSES ET DISPOSITIF D'AIGUILLETAGE POUR SA MISE EN OEUVRE
Abstract: front page image
(EN)A needle-bonded fibrous structure (P) is created by piling up fibrous strata on a platform (100), needle-bonding the 5 strata as they are gradually piled up using needles (114) which are activated in an alternative movement in a transversal direction in relation to said strata, and varying the distance separating the platform from an end of travel position of said needles during the piling up process in order to obtain a desired distribution of needle-bonding characteristics in the thickness of the fibrous structure. The instantaneous effort (f) which is exerted during penetration of said needles is measured (sensors 108) in order to evaluate a variable representing a needle-bonding effort (F) or penetration power (E) on the basis of said instantaneous effort. The variable (F; E) is verified in order to ascertain if it meets at least one predetermined condition in order to control smooth operation of the process or to act on the variation of the distance between the platform and the end of travel position of the needles.
(FR)Une structure fibreuse aiguilletee (P) est realisee par empilement de strates fibreuses sur un plateau (100), aiguilletage des 5 strates au fur et a mesure de leur empilement au moyen d'aiguilles (114) animees d'un mouvement alternatif en direction transversale par rapport aux strates, et variation de la distance separant le plateau d'une position de fin de course des aiguilles, pendant la realisation de l'empilement afin d'obtenir une distribution souhaitee des caracteristiques d'aiguilletage dans l'epaisseur de la structure fibreuse. On mesure (capteurs 108) I'effort instantane (f) exerce lors de la penetration des aiguilles, pour evaluer une grandeur representant un effort d'aiguilletage (F) ou une energie de penetration (E) a partir de I'effort instantane, et on verifie que la grandeur (F ; E) evaluee satisfait au moins une condition predeterminee pour controler le bon deroulement du procede ou agir sur la variation de la distance entre le plateau et une position de fin de course des aiguilles.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: French (FR)
Filing Language: French (FR)