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1. (WO2005038533) FIXING DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2005/038533 International Application No.: PCT/JP2004/014648
Publication Date: 28.04.2005 International Filing Date: 05.10.2004
IPC:
G03G 15/20 (2006.01) ,H05B 6/14 (2006.01)
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15
Apparatus for electrographic processes using a charge pattern
20
for fixing, e.g. by using heat
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
6
Heating by electric, magnetic, or electromagnetic fields
02
Induction heating
10
Induction heating apparatus, other than furnaces, for specific applications
14
Tools, e.g. nozzles, rollers, calenders
Applicants: YASUDA, Akihiro; null (UsOnly)
KATAKABE, Noboru; null (UsOnly)
TAJIMA, Noriyuki; null (UsOnly)
FUJIMOTO, Keisuke; null (UsOnly)
IMAI, Masaru; null (UsOnly)
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.[JP/JP]; 1006, Oaza Kadoma, Kadoma-shi Osaka 5718501, JP (AllExceptUS)
Inventors: YASUDA, Akihiro; null
KATAKABE, Noboru; null
TAJIMA, Noriyuki; null
FUJIMOTO, Keisuke; null
IMAI, Masaru; null
Agent: WASHIDA, Kimihito; 5th Floor, Shintoshicenter Bldg., 24-1, Tsurumaki 1-chome, Tama-shi Tokyo 2060034, JP
Priority Data:
2003-35802417.10.2003JP
2003-35833017.10.2003JP
2004-15516525.05.2004JP
Title (EN) FIXING DEVICE
(FR) DISPOSITIF DE FIXATION
(JA) 定着装置
Abstract:
(EN) A fixing device (200) using a heating device of an electromagnetic induction heating system, comprising an exciting device (230) generating magnetic fluxes, an opposed core (233) disposed oppositely to the exciting device (230), a fixing belt (210) induction-heated by the magnetic fluxes, and a magnetic shielding body (301) shielding a magnetic path (302) corresponding to the paper non-passage area of the fixing belt (210) between the exciting device (230) and the opposed core (233). Since the magnetic path passed between the exciting device (230) and the opposed core (233) is shielded by the magnetic shielding body (301), the overheat of the paper non-passage area of the fixing belt (210) can be prevented by effectively shielding the magnetic fluxes induction-heating the fixing belt (210).
(FR) L'invention concerne un dispositif de fixation (200) utilisant un dispositif chauffant d'un système chauffant à induction électromagnétique, comprenant un dispositif d'excitation (230) produisant des flux magnétiques, un noyau opposé (233) disposé face au dispositif d'excitation (230), une bande de fixation (210) chauffée par induction par les flux magnétiques, ainsi qu'un corps de protection contre les champs magnétiques (301) protégeant une ligne de force (302) correspondant à la zone par laquelle ne passe pas le papier de la bande de fixation (210) entre le dispositif d'excitation (230) et le noyau opposé (233). Du fait que la ligne de force passe entre le dispositif d'excitation (230) et que le noyau opposé (233) est protégé par le corps de protection contre les champs magnétiques (301), on peut éviter une surchauffe au niveau de la zone par laquelle ne passe pas le papier de la bande de fixation (210) en protégeant efficacement les flux magnétiques chauffant par induction la bande de fixation (210).
(JA)  電磁誘導加熱方式の加熱装置を用いた定着装置200において、磁束を発生する励磁装置230と、励磁装置230に対向して配置された対向コア233と、前記磁束により誘導加熱される定着ベルト210と、励磁装置230と対向コア233との間の定着ベルト210の非通紙領域に対応する磁路302を遮断する磁気遮蔽体301と、を備える。磁気遮蔽体301により励磁装置230と対向コア233との間を通る磁路を遮断することにより、定着ベルト210を誘導加熱する磁束を効果的に遮蔽して、定着ベルト210の非通紙領域の過昇温を防止する。
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, 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, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)