EP0619631A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Spark plug device
Assignee: Sumitomo Wiring Systems Ltd
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Filing: 1994-03-31
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Granted: —
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Expires: 2014-03-31
Abstract
Abstract There is disclosed a spark plug device wherein an ignition cable (11) and a spark plug body (13) connected to each other through a terminal fixture (12) are covered with a tubular plug cap (14), on which a rubber cap (15) and a rain cap (16) are mounted at its respective ends, and an insulating cover (17) is fitted in the inner peripheral surface of the plug cap (14) in a portion corresponding to the terminal fixture (12) to fill a gap external to the terminal fixture (12), whereby the spark plug device prevents corona discharge adjacent the terminal fixture and has excellent durability and reliable insulation.
Inventors
- 👤 Yoshinao C/O Sumitomo Wiring Syst. Ltd Kobayashi
- 👤 Mika C/O Sumitomo Wiring Syst. Ltd Okada
- 👤 Noriya C/O Sumitomo Wiring Syst. Ltd Okamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 21:09
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/02; H01T13/06; F; F02; F02B; F02B1/00; F02B1/02; F02B1/04; F02B2275/00; F02B2275/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
78 words
A spark plug device comprising: an ignition cable, a spark plug body having a terminal, a terminal fixture connected to an end of said ignition cable and fitted to the terminal of said spark plug body, a tubular plug cap for covering said spark plug body through to said ignition cable, and a filler material for filling a gap formed between the outer peripheral surface of said terminal fixture and the inner peripheral surface of said plug cap.
Claim 2
Dependent Claim
13 words
The spark plug device of claim 1, wherein said filler material is rubber.
Claim 3
Dependent Claim
23 words
The spark plug device of claim 1, wherein said filler material is an organic material containing neither aluminum nor calcium as an element.
Claim 4
Dependent Claim
20 words
The spark plug device of claim 1, wherein said filler material includes an insulating cover fitted in said plug cap.
Claim 5
Dependent Claim
25 words
The spark plug device of claim 1, wherein said filler material includes an insulator for integrally covering the inner peripheral surface of said plug cap.
Claim 6
Dependent Claim
43 words
The spark plug device of claim 1, further comprising a rubber cap fitted to said plug cap at its one end on the spark plug body side, said filler material being formed of the same material as and integrally with said rubber cap.
References Cited (Backward Citations)
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