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1. (WO2012042774) SPARK PLUG
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/042774    International Application No.:    PCT/JP2011/005238
Publication Date: 05.04.2012 International Filing Date: 16.09.2011
H01T 13/34 (2006.01), H01T 13/20 (2006.01)
Applicants: NGK SPARK PLUG CO.,LTD. [JP/JP]; 14-18, Takatsuji-cho, Mizuho-ku, Nagoya-shi, Aichi 4678525 (JP) (For All Designated States Except US).
YOSHIDA, Haruki [JP/JP]; (JP) (For US Only).
HONDA, Toshitaka [JP/JP]; (JP) (For US Only).
SUZUKI, Akira [JP/JP]; (JP) (For US Only)
Inventors: YOSHIDA, Haruki; (JP).
HONDA, Toshitaka; (JP).
SUZUKI, Akira; (JP)
Agent: FUKUMURA, Naoki; 3F, NK Bldg., 27-16, Yotsuya 4-chome, Shinjuku-ku, Tokyo 1600004 (JP)
Priority Data:
2010-224266 01.10.2010 JP
(JA) スパークプラグ
Abstract: front page image
(EN)Provided is a spark plug which maintains superior load life performance even when subjected to impact or oscillation. This spark plug is characterized in that, a plurality of curved parts formed by an appropriate degree of flexure of a contained member housed in a shaft hole of an insulator, draws close to the inner parameter of the insulator at three or more locations, and also in that the curved parts exist without being inclined in the radial direction of the shaft hole.
(FR)L'invention porte sur une bougie d'allumage qui conserve des performances de vie en charge supérieures même lorsqu'elle est soumise à des chocs ou des vibrations. Cette bougie d'allumage est caractérisée en ce qu'une pluralité de parties courbes formées par un degré de flexion approprié d'un élément contenu logé dans un trou d'arbre d'un isolateur se rapprochent du périmètre interne de l'isolateur à trois endroits ou plus, et également en ce que les parties courbes existent sans être inclinées dans la direction radiale du trou d'arbre.
(JA) この発明は、衝撃や振動を受けても負荷寿命性能に優れるスパークプラグを提供することを課題とする。 この発明のスパークプラグは、絶縁体の軸孔に収容される被収容部が適度に曲って形成された複数の曲部が、絶縁体の内周面に3箇所以上で近接し、かつ、これらの曲部が軸孔の径方向に偏らずに存在することを特徴とする。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)