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Patent Searching and Data


Title:
ATTACHMENT FOR PLUG
Document Type and Number:
WIPO Patent Application WO/2013/137041
Kind Code:
A1
Abstract:
An attachment for a plug includes a terminal body (2) and a terminal connector (64) having a convex portion (641) and a concave portion (642), and satisfies any one of the following conditions (A) to (C). (A) A ≥ 1.5, B ≥ 2.0, and A/B ≤ 7/4, where A (mm) is the length of the convex portion (641) along the center axis (CL3) of the terminal connector (64), and B (mm) is the length of the concave portion (642) along the center axis (CL3). (B) A plurality of grooves (643) is formed on the outer periphery of the convex portion (641), and the length of the grooves (643) is 0.3 mm or more and the width (W) of the grooves (643) is 0.05 to 0.25 mm. (C) 0.05 ≤ E−F, where E (mm) is the outer diameter of the convex portion (641) and F (mm) is the outer diameter of the concave portion (642). By satisfying any one of (A) to (C), the terminal connector (64) can be securely prevented from being disconnected from the terminal body (2).

Inventors:
OHTA JUNPEI (JP)
FUMA TOMOHIRO (JP)
Application Number:
PCT/JP2013/055823
Publication Date:
September 19, 2013
Filing Date:
March 04, 2013
Export Citation:
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Assignee:
NGK SPARK PLUG CO (JP)
International Classes:
H01T13/04; F02P13/00
Foreign References:
JP2010198766A2010-09-09
JP2004146126A2004-05-20
JP2008021870A2008-01-31
Attorney, Agent or Firm:
KAWAGUCHI MITSUO (JP)
Mitsuo Kawaguchi (JP)
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