EP2204888A1 - Zündkerzenkappe und Kerzenkappenmontagestruktur - Google Patents

Zündkerzenkappe und Kerzenkappenmontagestruktur Download PDF

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Publication number
EP2204888A1
EP2204888A1 EP10150069A EP10150069A EP2204888A1 EP 2204888 A1 EP2204888 A1 EP 2204888A1 EP 10150069 A EP10150069 A EP 10150069A EP 10150069 A EP10150069 A EP 10150069A EP 2204888 A1 EP2204888 A1 EP 2204888A1
Authority
EP
European Patent Office
Prior art keywords
cap
plug
resin molded
engine
molded member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10150069A
Other languages
English (en)
French (fr)
Other versions
EP2204888B1 (de
Inventor
Tomohiro Fuma
Junpei Ohta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niterra Co Ltd
Original Assignee
NGK Spark Plug Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Publication of EP2204888A1 publication Critical patent/EP2204888A1/de
Application granted granted Critical
Publication of EP2204888B1 publication Critical patent/EP2204888B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/02—Details
    • H01T13/04—Means providing electrical connection to sparking plugs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/02—Details
    • H01T13/06—Covers forming a part of the plug and protecting it against adverse environment

Definitions

  • the present invention relates to a spark plug cap and a plug cap mount structure for an internal combustion engine.
  • a plug cap also called “plug socket” or “plug connector” is used for electrically connecting a high-tension cord to a spark plug in an internal combustion engine so that the spark plug generates a spark discharge with the application of a high tension from an ignition coil or a distributor to the spark plug through the high-tension cord.
  • the plug cap includes a cylindrical cap body made of a rubber or resin material and equipped with an electrical connection member, a plug connection hole formed in one end of the cap body and a cord connection hole formed in the other end of the cap body to establish an electrical connection between the spark plug and the high-tension cord through the electrical connection member by fitting connection terminals of the spark plug and the high-tension cord into the plug connection hole and the cord connection hole, respectively.
  • the plug cap receives vibrations caused by operation of the internal combustion engine through the spark plug and the high-tension cord.
  • the plug connection hole and the cord connection hole are susceptible to engine vibrations.
  • the connection terminal of the spark plug and the plug connection hole of the plug cap may be worn away to produce metal dust or chips.
  • the adhesion of such metal dust or chips to the connection terminal of the spark plug become a cause of a current leakage (flashover) from the connection terminal to metal shell of the spark plug and then to the internal combustion engine, whereby the spark plug cannot secure a proper and stable spark discharge.
  • Japanese Laid-Open Patent Publication No. 2001-155837 proposes the formation of a rubber protrusion with an engagement hole on the outer circumferential surface of the plug cap so that the plug cap can be attached to the connection terminal of the spark plug with a cap supporting protrusion of the internal combustion engine engaged in the engagement hole of the rubber protrusion of the plug cap.
  • the plug cap mount technique of Japanese Laid-Open Patent Publication 2001-155837 has the problem that the influence of the engine vibrations on the plug cap may not be reduced sufficiently due to insufficient rigidity of the rubber protrusion.
  • a plug cap for electrically connecting a high-tension cord to a spark plug fixed to an internal combustion engine, comprising: an electrical connection member connected at one end thereof to the spark plug and at the other end to the high-tension cord to establish an electrical connection between the spark plug and the high-tension cord; a resin molded member covering at least part of an outer circumferential surface of the electrical connection member; and a cover member formed of an elastic rubber material softer than a resin material of the resin molded member and covering at least an outer circumferential surface of the resin molded member, characterized in that : the resin molded member has a protruding portion radially outwardly extending in at least one direction so as to be engageable with a cap mounting portion of the engine; and the cover member covers the protruding portion of the resin molded member in such a manner that at least part of the protruding portion of the resin molded member comes into contact with the cap mounting portion of the engine via the cover member.
  • a plug cap for electrically connecting a high-tension cord to a spark plug fixed to an internal combustion engine, comprising: a cap body having one end formed with a plug connection hole to receive a connection terminal of the spark plug and the other end formed with a cord connection hole to receive a connection terminal of the high-tension cord; and a protrusion formed on the cap body so as to be engageable with a cap mounting portion of the engine, characterized in that : the protrusion has a resin portion and a rubber portion made of an elastic rubber material softer than a resin material of the resin portion and covering the resin portion in such a manner that at least part of the resin portion comes into contact with the cap mounting portion of the engine via the rubber portion.
  • a plug cap mount structure for an internal combustion engine comprising: a cap mounting portion formed on the engine; and a plug cap attached to a spark plug fixed to the engine to electrically connect a high-tension cord to the spark plug, the plug cap comprising: an electrical connection member connected at one end thereof to the spark plug and at the other end to the high-tension cord to establish an electrical connection between the spark plug and the high-tension cord; a resin molded member covering at least part of an outer circumferential surface of the electrical connection member, the resin molded member having a protruding portion radially outwardly extending in at least one direction and engaged with the cap mounting portion of the engine; and a cover member formed of an elastic rubber material softer than a resin material of the resin molded member and covering at least an outer circumferential surface of the resin molded member including a surface of the protruding portion of the resin molded member in such a manner that at least part of the protruding portion of the resin molded member comes into
  • FIG. 1 is a perspective view of a plug cap according to a first embodiment of the present invention.
  • FIG. 2 is a partially cutaway perspective view of the plug cap according to the first embodiment of the present invention.
  • FIG. 3 is a section view of the plug cap according to the first embodiment of the present invention.
  • FIG. 4 is a section view of an engagement protrusion of the plug cap according to the first embodiment of the present invention.
  • FIG. 5 is a perspective view of a plug cap according to a second embodiment of the present invention.
  • FIG. 6 is a section view of an engagement protrusion of the plug cap according to the second embodiment of the present invention.
  • FIG. 7 is a schematic view showing a modification of the engagement protrusion of the plug cap.
  • FIGS. 8A and 8B are schematic views showing modifications of the engagement protrusion of the plug cap.
  • FIGS. 9A and 9B are schematic views showing modifications of the modifications of the engagement protrusion of the plug cap.
  • FIGS. 10A and 10B are schematic views showing modifications of the engagement protrusion of the plug cap.
  • a plug cap 100 for electrically connecting a high tension cord 60 to a spark plug 500 fixed to an internal combustion engine so as to apply a high tension from an ignition coil to the spark plug 500 through the high tension cord 60.
  • top refers to a high-tension cord side
  • bottom refers to a spark plug side as viewed in the drawings.
  • the plug cap 100 has a cap body 1, a plug connection hole 4 and a cord connection hole 5.
  • the cap body 1 is circular in cross section and is bent at a point to define an axial body part 2 extending along a first axis C1 on a bottom side of the bending point and a bent body part 3 extending on a top side of the bending point along a second axis C2 that intersects with the first axis C at a given angle.
  • the cap body 1 is not however limited to the bent shape and can alternatively be formed into a linear shape or a curved shape.
  • the plug connection hole 4 is formed in a bottom end of the axial body part 2 of the cap body 1 along the direction of the first axis C1 so that a connection terminal of the spark plug 500 is fitted in and connected to the plug connection hole 4.
  • the cord connection hole 5 is formed in a top end of the bent body part 3 of the cap body 1 along the direction of the second axis C2 so that a connection terminal of the high-tension cord 60 is fitted in and connected to the cord connection hole 5.
  • the cap body 1 includes an electrical connection member equipped with a cord fixing screw 15, a contact plate 16, a contact spring 17, a setting cap 7, a resistive element 18 and a connector fitting 19 to make an electrical connection between the spark plug 50 and the high-tension cord 60, a resin molded member 6 covering at least part of an outer circumferential surface of the electrical connection member and a cover member 9 covering at least an outer circumferential surface of the resin molded member 6 as shown in FIGS. 2 and 3 .
  • the resin molded member 6 is formed of a resin material having relatively high heat resistance. Suitable examples of the resin material of the resin molded member 6 are a thermosetting resin such as phenol resin or unsaturated polyester resin and a thermoplastic resin material such as PPS (polyphenylene sulfide) resin.
  • the resin molded member 6 has a bent shape extending along the axial body part 2 and bent body part 3 of the cap body 1.
  • a hole 8 is formed in a top end of the resin molded member 6 in the direction of the second axis C2.
  • the cover member 9 is formed of an insulating rubber material having sufficient heat resistance to withstand heat from the engine and being elastic and softer than the resin material of the resin molded member 6.
  • Suitable examples of the rubber material are a silicon rubber, an acrylic rubber and an EPDM (ethylene propylene dien monomer) rubber.
  • the cover member 9 includes a main cover portion 10 located around the outer circumferential surface of the resin molded member 6 and cylindrical end portions 11 and 12 located on bottom and top sides of the main cover portion 10.
  • the bottom end portion 11 is made smaller in outer diameter than the main cover portion 10.
  • a through hole 13 is formed in the bottom end portion 11 in the direction of the first axis C1 to define a part of the plug connection hole 4.
  • the top end portion 12 is narrowed at an axially middle position thereof to be smaller in outer diameter than the main cover portion 10.
  • a through hole 14 is formed in the top end portion 12 in the direction of the second axis C2 to define the cord connection hole 5 together with the hole 8 of the resin molded member 6.
  • the cord fixing screw 15 is formed of a conductive metal material such as brass and tapered down toward the top.
  • the cord fixing screw 15 has a bottom end embedded in the resin molded member 6 and a top threaded end protruding in the cord connection hole 5 so that the connection terminal of the high-tension cord 60 is screwed onto the threaded end of the cord fixing screw 15 and fixed in position in the cord connection hole 5 with a lead of the high-tension cord 60 brought into contact with the cord fixing screw 15.
  • the contact plate 16 is formed of a conductive metal material such as stainless steel and held between a bottom end surface of the cord fixing screw 15 and a top end surface of the setting cap 7 to make an electrical connection to the contact spring 17.
  • the setting cap 7 is formed of a conductive metal material such as brass.
  • the setting cap 7 has an inverted U shape cross section to be fitted on the contact spring 17 with the top end surface of the setting cap 7 held in contact with the contact plate 16.
  • the contact spring 17 is formed of a conductive metal material such as hard stainless steel and is electrically connected at a top end thereof to the contact plate 16 via the setting cap 7 and at a bottom end thereof to the resistive element 18.
  • the resistive element 18 is formed into a substantially cylindrical column shape of a conductive ceramic material and is electrically connected at a top end thereof to the contact spring 17 and at a bottom end thereof to the connector fitting 19.
  • the resistive element 18 has a given electrical resistance (e.g. 5 k ⁇ ) so as to suppress radio noise caused due to the generation of a spark discharge by the spark plug 50.
  • the connector fitting 19 is formed of a conductive metal material such as brass.
  • the connector fitting 19 has a cylindrical shape with a top end closed and held in contact with the bottom end of the resistive element 19 and an axial hole 20 formed in the direction of the first axis C1 to define the plug connection hole 4 together with the through hole 13 of the cover member 9.
  • a connector spring 21 is disposed around a bottom end of the connector fitting 19 so as to fasten the connector fitting 19 radially inwardly and, when the connection terminal of the spark plug 50 is fitted in the plug connection hole 4, fix the terminal end of the spark plug 50 stably in position.
  • the electrical connection member thus electrically connects the high-tension cord 60 to the spark plug 50 through the cord fixing screw 15, the contact plate 16, the setting cap 7, the contact spring 17, the resistive element 18 and then the connector fitting 19 by pushing the connection terminal of the spark plug 50 into the axial hole 20 of the plug fitting 19 within the plug connection hole 4 and by screwing the connection terminal of the high-tension cord 60 onto the cord fixing screw 15 within the cord connection hole 5.
  • the resin molded member 6 has a protruding portion 25 extending radially outwardly and engaged with a cap mounting portion of the engine.
  • the cover member 9 has a cover portion 27 protruding from the main cover portion 10 to cover the protruding portion 25 of the resin molded member 6 so that at least part of the protruding portion 25 of the resin molded member 6 comes into contact with the cap mounting protrusion of the engine via the cover portion 27 as shown in FIGS. 1 to 4 .
  • the cap mounting portion has a fixing protrusion 24 formed on the engine in the direction of the first axis C1, i.e., the axis of the spark plug 50 as shown in FIGS. 1 to 3 .
  • the protruding portion 25 of the resin molded member 6 extends, when viewed in the direction of the first axis C1, in a direction perpendicular to the direction of the first axis C1 and opposite to the direction of the second axis C2 into which the bent body part 3 of the cap body 1 is bent relative to the axial body part 2 of the cap body 1.
  • a through hole 23 of larger size than the fixing protrusion 24 of the engine is formed in a tip end of the protruding portion 25.
  • the cover portion 27 of the cover member 9 covers the whole surface of the protruding portion 25 of the resin molded member 6 including an inner circumferential surface of the through hole 23 of the protruding portion 25 to define an engagement hole 28 of substantially the same size as the fixing protrusion 24 of the engine.
  • the earlier technology provides a plug cap with a protrusion of rubber so that the plug cap can be attached to a spark plug with a cap supporting protrusion of an internal combustion engine engaged in an engagement hole of the rubber protrusion but has the problem that the influence of engine vibrations on the plug cap may not be reduced sufficiently due to insufficient rigidity of the rubber protrusion. It is conceivable to form the protrusion of the plug cap from a relatively high rigid resin material in place of the rubber material.
  • the cap supporting protrusion of the engine cannot be readily engaged in the engagement hole of the high rigid resin protrusion in the occurrence of even a slight dimensional error in the cap supporting protrusion and the engagement hole when the engagement hole is formed to minimize the clearance between the cap supporting protrusion and the engagement hole for more stable mounting of the plug cap.
  • the protruding portion 25 of the resin molded member 6 and the cover portion 27 of the cover member 9 constitutes an engagement protrusion 22 held with the cap mounting portion of the engine by insertion of the fixing protrusion 24 in the engagement hole 28 when the plug cap 100 is attached to the connection terminal of the spark plug 50.
  • This allows the plug cap 100, in a mounted state, to be held with the connection terminal of the spark plug 50 and with the cap mounting portion (fixing protrusion 24) of the engine.
  • the protruding portion 25 can provide sufficient rigidity to the engagement protrusion 22 of the plug cap 100 so as to stabilize the mounted state of the plug cap 100 and reduce or prevent the influence of engine vibrations on the plug cap 100 by engagement of the engagement protrusion 22 with the cap mounting portion of the engine.
  • the cover portion 27 of the cover member 9 covers the whole surface of the protruding portion 25 so that the cap mounting portion of the engine does not comes into direct contact with the resin protruding portion 25 but comes with the cover portion 27.
  • the cover member 9 can absorb such a dimensional error as the cover member 9 is integrally formed of the elastic rubber material softer than the resin material of the resin molded member 6.
  • the fixing protrusion 24 of the cap mounting portion of the engine can be readily engaged in the engagement hole 28 of the engagement protrusion 22 due to elasticity of the rubber material.
  • a flanged region 26 is formed on a tip end of the fixing protrusion 24 whereas a large thickness region 71 is formed on a base end of the fixing protrusion 24 to protrude toward the flanged region 26 as shown in FIGS. 1 to 3 .
  • the flanged region 26 functions as a movement restriction member (or means) of the plug cap 100 that holds the cover portion 27 between the flanged region 6 and the large thickness region 71 and thereby prevents the protruding portion 25 from moving in its engagement/disengagement direction relative to the cap mounting portion. This leads to the more stable mounted state and further improved vibration resistance of the plug cap 100.
  • a plug cap 101 according to a second embodiment of the present invention is structurally similar to the plug cap 100 of the first embodiment, except for the shapes of the engagement protrusion 22 of the plug cap 101 and the cap protruding portion of the engine as shown in FIGS. 5 and 6 .
  • the cap protruding portion has a recess 37 cut in the engine or a protrusion on the engine for engagement of the engagement protrusion 22 of the plug cap 101.
  • the recess 37 is the smallest in width at an opening 39 thereof to define a small width region 72 and is made larger in width toward the back to define a large width region 73.
  • the small width region 72 may not be defined at the opening 39 of the recess 37 but alternatively be defined at a back of the opening 39 (at a position between the opening 39 and the large width region 73) of the recess 37.
  • the engagement protrusion 22 is constituted by a protruding portion 34 of the resin molded member 6 and a cover portion 40 of the cover member 9.
  • the protruding portion 34 of the resin molded member 6 includes a narrowed region 38 of relatively small width at a substantially middle position in the protruding direction of the protruding portion 34 and an enlarged region 35 of larger width than the narrowed region 38 at a tip end of the protruding portion 34 so that so that the narrowed region 38 and the enlarged region 35 correspond to the small width region 72 and large width region 73 of the recess 37, respectively.
  • the enlarged region 35 is made smaller in size than the large width region 73.
  • the cover portion 40 of the cover member 9 covers the whole surface of the protruding portion 34 so that the enlarged region 35 of the protruding portion 35 mates and engages with the inner circumferential surface of the recess 37 (large width region 73) via the cover portion 40 by insertion of the engagement protrusion 22 in the recess 37.
  • the width A of the enlarged region 35 of the protruding portion 34 is preferably made larger than the width B of the opening 39 (small width region 72) of the recess 37 so as to, even in the event of a breakage in the cover portion 40, prevent the protruding portion 34 from being detached from the recess 37. This leads to the more stable mounted state and further improved vibration resistance of the plug cap 101.
  • the number of protruding portions on the resin molded member 6 is not limited to one.
  • the resin molded member 6 may alternatively have a plurality of protruding portions.
  • the resin molded member 6 can have two protruding portions 25a and 25b extending in different directions and covered by the cover member 9 as shown in FIG. 7 .
  • the formation of such a plurality of protruding portions 25a and 25b enables further stabilization of the mounted state of the plug cap 100, 101 and further improvement of the vibration resistance of the plug cap 100, 101.
  • the direction of protrusion of the protruding portion 25, 34 of the resin molded member 6 is not limited to that of the first or second embodiment although the protruding portion 25, 34 extends radially outwardly in the direction opposite to the direction into which the bent body part 3 of the cap body 1 is bent relative to the axial body part 2 of the cap body 1 in each of the first and second embodiments.
  • the protrusion direction of the protruding portion 25, 34 can be modified as appropriate depending on the engine layout etc.
  • the protruding portion 25 may alternatively extend in a direction at a certain angle with respect to the direction into which the bent body part 3 of the cap body 1 is bent relative to the axial body part 2 of the cap body 1 as shown in FIG. 8A . As shown in FIG.
  • the resin molded member 6 may have a protruding portion 41 extending in substantially the same direction as the direction into which the bent body part 3 of the cap body 1 is bent relative to the axial body part 2 of the cap body 1.
  • the protruding portion 41 is engaged with a fixing protrusion 42 of the engine at a position relatively close to the center of gravity of the plug cap 100, 101. It is thus possible to limit an increase in load on the connection between the plug cap 100, 101 and the spark plug 50 and obtain further improvement in the vibration resistance of the plug cap 100, 101.
  • the vibration resistance varies depending on the mounting angle, it is desirable to set the most effective, optimum mounting angle.
  • cover portion 27, 40 of the cover member 9 covers the whole surface of the protruding portion 26, 34 of the resin molded member 6 in the first and second embodiments
  • the cover portion 27, 40 does not necessarily covers the whole surface of the protruding portion 26, 34. It suffices that the cover portion 27, 40 covers at least part of the protruding portion 26, 34 such that the at least part of the protruding portion 26, 34 comes into contact with the cap mounting portion of the engine via the cover portion 27, 40.
  • the configuration of the electrical connection member is not limited to that of the first or second embodiment although the electrical connection member is provided by connecting the cord fixing screw 15, the contact plate 16, the contact spring 17, the setting cap 7, the resistive element 18 and the connector fitting 19 in the first and second embodiments.
  • the electrical connection member can be any means capable of making an electrical connection between the spark plug 50 and the high-tension cord 60.
  • the electrical connection member may alternatively be provided by electrically connecting the contact spring 17 and the connector fitting 19 without the resistive element 18 or be provided by connecting a lead wire or wires between the spark plug 50 and the high-tension cord 60.
  • the configuration of the movement restriction member is not limited to that of the first embodiment although the flanged region 26 is formed as the movement restriction member on the protrusion 24 of the engine.
  • the movement restriction member can be any means capable of preventing the protruding portion 25 of the resin molded member 6 from moving in its engagement/disengagement direction relative to the cap mounting portion of the engine.
  • the movement restriction member may have a nut 43 and a screw thread formed on a fixing protrusion 51 of the cap mounting portion so as to, after engaging the protrusion 51 in the engagement hole 28, screw the nut 43 onto the screw thread of the protrusion 51 and thereby prevent movement of the protruding portion 25 in its disengagement direction relative to the protrusion 51 as shown in FIG. 9A .
  • any other fixing means such as a socket or a clip can be used.
  • the movement restriction member may alternatively have a stage 45 formed at a base end of a fixing protrusion 61 of the cap mounting portion so as to prevent movement of the protruding portion 25 in its engagement direction relative to the protrusion 61 by contact of the cover portion 27 with the stage 45 as shown in FIG. 9B . Any of the above movement restriction members can be used in combination thereof.
  • each of the engagement hole 28 (through hole 23) and the fixing protrusion 24 is rectangular in cross section as shown in FIG. 4 in the first embodiment, the shapes of the engagement hole 28 (through hole 23) and the fixing protrusion 24 are not limited to those of the first embodiment.
  • the engagement hole 28 (through hole 23) and the fixing protrusion 24 can alternatively be circular in cross section as shown in FIG. 10A or be hexagonal in cross section as shown in FIG. 10B .

Landscapes

  • Ignition Installations For Internal Combustion Engines (AREA)
  • Spark Plugs (AREA)
EP10150069A 2009-01-06 2010-01-05 Zündkerzenkappe und Kerzenkappenmontagestruktur Active EP2204888B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009000488A JP5237835B2 (ja) 2009-01-06 2009-01-06 プラグキャップ及びその取付構造

Publications (2)

Publication Number Publication Date
EP2204888A1 true EP2204888A1 (de) 2010-07-07
EP2204888B1 EP2204888B1 (de) 2011-10-12

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EP10150069A Active EP2204888B1 (de) 2009-01-06 2010-01-05 Zündkerzenkappe und Kerzenkappenmontagestruktur

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EP (1) EP2204888B1 (de)
JP (1) JP5237835B2 (de)
AT (1) ATE528832T1 (de)
BR (1) BRPI0905198A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013020552A1 (de) 2011-08-11 2013-02-14 Motortech Gmbh Zündkerzenstecker

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013011055A1 (de) 2013-07-02 2015-01-08 Daimler Ag Fahrzeugbauteil und Anordnung, umfassend ein Fahrzeugbauteil

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001155837A (ja) 1999-11-30 2001-06-08 Sumitomo Wiring Syst Ltd プラグキャップ装置
JP2009000488A (ja) 2007-06-24 2009-01-08 Haruo Wakabayashi 買物用かご

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127840A (en) * 1991-09-03 1992-07-07 General Motors Corporation Spark plug connector
JPH11176555A (ja) * 1997-12-10 1999-07-02 Sumitomo Wiring Syst Ltd プラグキャップ装着構造
JP4882174B2 (ja) * 2001-07-16 2012-02-22 東洋紡績株式会社 電動工具把手
JP4528211B2 (ja) * 2005-06-23 2010-08-18 本田技研工業株式会社 空冷エンジンの点火装置
JP4793857B2 (ja) * 2005-12-27 2011-10-12 本田技研工業株式会社 自動二輪車のプラグキャップ取付構造体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001155837A (ja) 1999-11-30 2001-06-08 Sumitomo Wiring Syst Ltd プラグキャップ装置
JP2009000488A (ja) 2007-06-24 2009-01-08 Haruo Wakabayashi 買物用かご

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013020552A1 (de) 2011-08-11 2013-02-14 Motortech Gmbh Zündkerzenstecker

Also Published As

Publication number Publication date
EP2204888B1 (de) 2011-10-12
BRPI0905198A2 (pt) 2011-06-14
JP5237835B2 (ja) 2013-07-17
JP2010160900A (ja) 2010-07-22
ATE528832T1 (de) 2011-10-15

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