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1. (WO1998051426) METHOD FOR BLANKING BLANKS FOR CUPPING, BLANK, AND CYLINDRICAL CAN FORMED FROM THAT BLANK
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/051426 International Application No.: PCT/JP1998/002052
Publication Date: 19.11.1998 International Filing Date: 08.05.1998
Chapter 2 Demand Filed: 04.12.1998
IPC:
B21D 28/06 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
D
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING
28
Shaping by press-cutting; Perforating
02
Punching blanks or articles with or without obtaining scrap; Notching
06
Making more than one part out of the same blank; Scrapless working
Applicants:
TOYO KOHAN CO., LTD. [JP/JP]; 4-3, Kasumigaseki 1-chome Chiyoda-ku Tokyo 100-8911, JP (AllExceptUS)
IKEDA, Yasuyuki [JP/JP]; JP (UsOnly)
SHIMIZU, Keiichi; JP (UsOnly)
Inventors:
IKEDA, Yasuyuki; JP
SHIMIZU, Keiichi; JP
Agent:
OHTA, Akio; Toyo Kohan Co., Ltd. 4-3, Kasumigaseki 1-chome Chiyoda-ku Tokyo 100-8911, JP
Priority Data:
9/13447409.05.1997JP
Title (EN) METHOD FOR BLANKING BLANKS FOR CUPPING, BLANK, AND CYLINDRICAL CAN FORMED FROM THAT BLANK
(FR) PROCEDE DE MISE EN FORME D'EBAUCHES POUR EMBOUTISSAGE, EBAUCHE ET BOITE CYLINDRIQUE FORMEE A PARTIR DE CETTE EBAUCHE
Abstract:
(EN) A method for blanking blanks for use in cupping in a high yield so as to form cylindrical cans of a low earing ratio (variations in cylinder can height) with those blanks; blanks blanked by that method; and cylindrical cans of a low earing ratio formed with those blanks. The method for blanking is characterized in that blanks of a basically hexagonal shape, with each pair of the opposite sides of the hexagon parallel to each other and each corner of the hexagon formed in an arc shape, are blanked out of a long rolled metallic plate.
(FR) Cette invention concerne un procédé de mise en forme d'ébauches qui peut être utilisé lors d'un emboutissage à grande échelle, et permet de former à partir de ces ébauches des boîtes cylindriques ayant un faible taux de formation de cornes (variations de la hauteur de la boîte cylindrique). Cette invention concerne également des ébauches mises en forme d'après ce procédé, ainsi que des boîtes cylindriques obtenues à partir de ces ébauches et ayant un faible taux de formation de cornes. Ce procédé de mise en forme se caractérise en ce que l'on utilise des ébauches d'une forme globalement hexagonale, les faces opposées et formant des paires de l'hexagone étant parallèles l'une à l'autre tandis que les coins de l'hexagone prennent la forme d'un arc. Ces ébauches sont mises en forme à partir d'une longue plaque métallique laminée.
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Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, 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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
AU1998072349