WO2010095748A1 - Plug cap and method for producing a plug cap - Google Patents
Plug cap and method for producing a plug cap Download PDFInfo
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- WO2010095748A1 WO2010095748A1 PCT/JP2010/052744 JP2010052744W WO2010095748A1 WO 2010095748 A1 WO2010095748 A1 WO 2010095748A1 JP 2010052744 W JP2010052744 W JP 2010052744W WO 2010095748 A1 WO2010095748 A1 WO 2010095748A1
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- plug
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- 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
- H01T13/05—Means providing electrical connection to sparking plugs combined with interference suppressing or shielding means
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- the present invention relates to a plug cap and a method for manufacturing the plug cap.
- a plug cord that electrically connects the plug cord connected to the ignition coil and the head terminal of the spark plug is used.
- a plug cap having a resistor for suppressing noise is known (for example, Patent Document 1).
- the connector metal fitting to which the head terminal is mounted and the conductor that electrically connects the resistor are assembled to the resin cap body by insert molding.
- the present invention aims to improve the productivity of plug caps.
- the present invention can take the following forms or application examples in order to solve at least a part of the problems described above.
- a plug cap for a spark plug A cap body having a first cavity having a first opening and a second cavity having a second opening; A cord connecting member disposed in the first cavity so that a plug cord can be connected from the first opening; A plug connecting member disposed in the second cavity so that a terminal of the spark plug can be connected from the second opening; A resistor disposed inside the plug connection member in the second cavity, With The plug connecting member and the resistor are fixed in contact with each other, The plug connecting member fixed to the resistor is a plug cap that is press-fitted into the second cavity of the cap body.
- the plug cap according to Application Example 1 or Application Example 2 The plug connecting member includes a connecting member main body having a concave portion for fitting a terminal of the spark plug, and a pipe member inserted into the concave portion.
- the plug connecting member can be prevented from coming into direct contact with the terminal of the spark plug, and the wear resistance of the plug cap can be improved.
- a plug cap comprising a spring member for electrically connecting the resistor and the cord connecting member. In this way, the resistor and the cord connecting member can be electrically connected with a simple configuration.
- Application Example 5 A method of manufacturing a plug cap for a spark plug, (A) preparing a cap body having a first cavity having a first opening and a second cavity having a second opening; (B) preparing a plug connecting member capable of connecting a terminal of the spark plug and a resistor; (C) fixing the plug connecting member and the resistor; (D) fixing the plug connecting member fixed to the resistor in the second cavity of the cap body; A manufacturing method comprising: In this case, the plug connecting member and the resistor are fixed, and then the plug connecting member is fixed to the cap body. Therefore, the manufacturing becomes easy and the productivity of the plug cap is improved.
- the manufacturing method according to Application Example 5 or Application Example 6 is a manufacturing method that is performed by press-fitting the resistor into the plug connection member. If it carries out like this, it can fix in the state which contacted the plug connection member and the resistor simply by press-fitting.
- connection Example 8 The manufacturing method according to any one of Application Example 5 to Application Example 7, The step (b) (B1) a step of preparing a connection member main body having a concave portion for fitting a terminal of the spark plug, and a pipe member; (B2) inserting the pipe member into the concave portion; Manufacturing method.
- the plug connecting member can be prevented from coming into direct contact with the terminal of the spark plug, so that the wear resistance of the plug cap can be improved.
- Application Example 9 The manufacturing method according to any one of Application Example 5 to Application Example 8, (E) A manufacturing method comprising a step of fixing a cord connecting member for connecting a plug cord to the first cavity of the cap body. In this way, the plug cord can be easily connected to the cap body.
- FIG. 3 is a flowchart showing steps of a method for manufacturing the plug cap 100.
- 6 is a first diagram for explaining a method of manufacturing the plug cap 100.
- FIG. 10 is a second view for explaining the method for manufacturing the plug cap 100.
- FIG. 10 is a third view for explaining the method for manufacturing the plug cap 100.
- FIG. 1 is a cross-sectional view of a plug cap 100 as an embodiment of the present invention.
- the plug cap 100 includes a cap body 110, a wood screw 120, a spring 130, a resistor 140, a connector member 150, a pipe member 160, an R pin 170, and kikuza 180 and 190. It has.
- the cap body 110 is made of a resin material such as phenol resin.
- the cap body 110 is formed with a first cavity H1 having a first opening OP1 and a second cavity H2 having a second opening OP2.
- the first hollow portion H1 is on the XZ plane in FIG. 1, and the head portion of the wood screw 120 and the cylindrical portion H11 centering on a straight line forming an angle of about 30 degrees with the X axis are fitted. It has a back H12 having a possible shape.
- the second cavity H2 has first to third cylindrical portions H21, H22, and H23 having the Z axis in FIG. 1 as the central axis.
- the first to third cylindrical portions H21, H22, H23 are arranged in this order from the second opening OP2 side.
- the first to third cylindrical portions H21, H22, and H23 have different inner diameters, and these inner diameters are sequentially reduced in this order.
- the inner diameter of the second cylindrical portion H22 is set slightly smaller than the outer diameter of the connector member 150 so that the connector member 150 can be press-fitted.
- the inner diameter of the third cylindrical portion H23 is large enough to accommodate the resistor 140.
- the back part H12 of the first cavity part H1 and the end part on the back side of the third cylindrical part H23 of the second cavity part H2 are communicated with each other by the connection cavity part CN.
- the connection cavity portion CN has a cylindrical shape with a curved central portion, and the spring 130 is accommodated therein.
- the wood screw 120 is formed of a conductive metal, and a male screw is engraved on the outer periphery.
- the plug cord and the wood screw 120 are electrically connected by screwing the end of a plug cord (not shown) to the male screw of the wood screw 120.
- the spring 130 is formed of a conductive metal, and is accommodated in the connection cavity CN of the cap body 110 while being curved and compressed in the axial direction. One end of the spring 130 is pressed against the head of the wood screw 120 by the repulsive force of the spring 130, and the other end is pressed against the protective cap 141 of the resistor 140 by the repulsive force of the spring 130. . Thereby, the wood screw 120 and the resistor 140 are electrically connected via the spring 130.
- the resistor 140 has a cylindrical shape made of ceramics, and silver paste (not shown) is applied to both ends.
- the end of the resistor 140 on the spring 130 side is covered with a protective cap 141 made of SUS (stainless steel) that protects the resistor 140.
- the resistor 140 is a conductive ceramic having a predetermined resistance value, and is provided to suppress electrical noise.
- the connector member 150 is made of free-cutting brass.
- the connector member 150 has a hollow cylindrical shape with the Z axis in FIG. 1 as the central axis.
- the end of the connector member 150 on the positive side of the Z axis is closed by a wall, and the end of the negative side of the Z axis is opened.
- a hole H4 for fitting the resistor 140 is formed on the outside of the wall at the end portion on the positive direction side of the connector member 150. By fitting the resistor 140 into the hole H4 of the connector member 150, the connector member 150 and the resistor 140 are fixed in contact with each other.
- a pipe member 160 is inserted into the hollow portion H3 of the connector member 150.
- the pipe member 160 is a pipe made of SUS. An upper terminal of a plug cap is inserted into the pipe member 160 in use.
- a first cutout NT1 that communicates with the hollow portion H3 and a second cutout NT2 that does not communicate with the hollow portion H3 are formed on the outer periphery of the connector member 150.
- An R pin 170 is fitted into the first notch NT1 and the second notch NT2.
- the R pin 170 has an R shape when viewed from the Z-axis direction.
- the R pin 170 is manufactured by bending a thin rod-shaped metal.
- the R pin 170 prevents the pipe member 160 disposed in the hollow portion H3 of the connector member 150 from falling off. Further, the R pin 170 is fixed so that the upper terminal of the plug cap inserted into the pipe member 160 is not removed.
- the kikuza 180 and 190 have a circular shape in plan view, and a jagged shape is formed at the outer edge of the circular shape.
- a hole is formed in the circular central part of the kikuza 180 and 190, and the shaft portion of the wood screw 120 is inserted into the hole.
- the kikuza 180 and 190 are pushed into the back of the first cavity H1 of the cap body 110 until they come into contact with the head of the wood screw 120, thereby fixing the wood screw 120 to the cap body 110. .
- FIG. 2 is a flowchart showing the steps of the method for manufacturing the plug cap 100.
- 3 to 5 are diagrams for explaining a method of manufacturing the plug cap 100.
- FIG. 2 is a flowchart showing the steps of the method for manufacturing the plug cap 100.
- step S10 each part, that is, the cap main body 110, the wood screw 120, the spring 130, the resistor 140, the protective cap 141, the connector member 150, the pipe member 160, the R pin 170, and the kikuza 180 and 190 are prepared.
- step S20 the pipe member 160 is inserted into the hollow portion H3 of the connector member 150 (FIG. 3).
- the pipe member 160 is inserted by, for example, a hand press.
- step S30 the R pin 170 is assembled to the first notch NT1 and the second notch NT2 of the connector member 150. After the R pin 170 is attached to the connector member 150, an unnecessary end portion is cut.
- step S40 the resistor 140 is press-fitted into the hole H4 of the connector member 150.
- the resistor 140 is press-fitted into the protective cap 141 by performing pressing in a state where the protective cap 141 is disposed on the lower jig of the press machine and the resistor 140 is disposed on the upper jig. Subsequently, pressing is performed in a state where the connector member 150 is disposed on the upper die of the jig, so that the resistor 140 is press-fitted into the hole H4 of the connector member 150 (FIG. 3).
- step 4 when the resistor 140 is fixed to the connector member 150 in contact with each other, and an assembly (FIG. 4) in which the pipe member 160, the R pin 170, and the protective cap 141 are assembled is manufactured (step 4).
- the assembly is hot-pressed into the second cavity H2 of the cap body 110 from the second opening OP2.
- the cylindrical outer surface of the connector member 150 is fixed to the second cylindrical portion H22 of the second cavity H2 by press-fitting.
- the resistor 140 is accommodated in the third cylindrical portion H23 of the second cavity H2 (FIG. 5).
- step S60 the spring 130 is assembled from the first opening OP1 to the connection cavity CN of the cap body 110.
- step S70 the wood screw 120 and the kikuza 180 are assembled into the first cavity H1 of the cap body 110 from the first opening OP1.
- step S80 the kikuza 190 is assembled into the first cavity H1 from the first opening OP1. As the kikuza 180 and 190 are pushed to the back of the first cavity H1, the head of the wood screw 120 is fixed to the interior H12 of the first cavity H1.
- the connector member 150 and the resistor 140 are fixed in contact with each other, a member for connecting the connector member 150 and the resistor 140 is unnecessary, and the number of parts can be reduced. Further, since a member for connecting the connector member 150 and the resistor 140 is not necessary, it is not necessary to insert-mold the connection member into the cap body, and manufacturing is easy.
- the assembly in which the resistor 140 and the connector member 150 are fixed to each other is assembled into the cap body 110 by press fitting, manufacturing is easy. Furthermore, since the pipe member 160 is inserted into the hollow portion H3 of the connector member 150, the upper terminal of the spark plug does not directly contact the connector member 150. For this reason, it is possible to realize the plug cap 100 having excellent wear resistance with respect to the upper terminal of the spark plug while using inexpensive and easily machined free-cutting brass for the connector member 150.
- the spring 130 is used to secure the electrical connection between the resistor 140 and the wood screw 120, the manufacturing is easy. For example, a process of insert molding a member connecting the resistor 140 and the wood screw 120 or welding the resistor 140 and the wood screw 120 is unnecessary.
- the connector member 150 corresponds to the plug connecting member in the claims. Further, the hollow portion H3 of the connector member 150 corresponds to the concave portion in the claims.
- the wood screw 120 corresponds to the cord connecting member in the claims.
- the spring 130 is used for electrical connection between the resistor 140 and the wood screw 120.
- the present invention is not limited to this, and various conductive members can be used.
- the conductive member is preferably an elastic member.
- the resistor 140 is ceramic, but may be a winding resistor.
- the connector member 150 specifies the material of each component such as free-cutting brass. However, these materials are not limited to the embodiment, and various materials such as various metals, conductive resins, and conductive ceramics. Can be used.
- the axis of the second cavity H2 and the axis of the first cavity H1 have an angle of about 120 degrees, but this angle can be changed variously. It is. For example, about 90 degrees, about 150 degrees, and the like can be appropriately changed.
- the cap body 110 is formed of a phenol resin, but may be other thermosetting resins, and may be made of various insulating materials such as other thermoplastic resins such as PPS resin.
- the connector member 150 is hot-pressed into the cap body 110, but depending on the material of the cap body 110, it may be cold-pressed.
- the connector member 150 is not limited to press-fitting, and may be fixed to the cap body 110 by screwing, an adhesive, or the like.
- the connector member 150 and the resistor 140 are fixed to each other by press-fitting.
- the fixing method of the connector member 150 and the resistor 140 is not limited to this, and is fixed by screwing, an adhesive, or the like. May be.
- the plug cord and the plug cap 100 are fixed by the male screw of the wood screw 120, and the upper terminal of the spark plug and the plug cap 100 are fixed by the R pin 170.
- the method is not limited to this, and various fixing methods can be adopted.
- Example and modification of this invention were demonstrated, this invention is not limited to these Example and modification at all, and implementation in a various aspect is possible within the range which does not deviate from the summary. It is.
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Abstract
Provided are a plug cap and a method for producing a plug cap, with which the producibility of the plug cap is improved. A plug cap (100) for a spark plug is provided with: a cap body (110) comprising a first cavity part (H11) which has a first opening (OP1) and a second cavity part (H2) which has a second opening (OP2); a cord connecting member (wood screw) (120) which is disposed in the first cavity part (H11) in such a way as to be connectable with the plug cord from the first opening (OP1); a plug connecting member (connector member) (150) which is disposed in the second cavity part (H2) in such a way as to be connectable with a terminal of the spark plug from the second opening (OP2); and a resistive element (140) which is disposed inwards of the plug connecting member (150) in the second cavity part (H2). The plug connecting member (150) and the resistive element (140) are fixed in a state of contact with each other. The plug connecting member (150) which is fixed to the resistive element (140) is pressure-fitted in the second cavity part (H2) of the cap body (110).
Description
本発明は、プラグキャップ、および、プラグキャップの製造方法に関する。
The present invention relates to a plug cap and a method for manufacturing the plug cap.
スパークプラグの頭部端子に対して点火コイルから点火用高電圧を供給するために、点火コイルに接続されたプラグコードと、スパークプラグの頭部端子とを電気的に接続するプラグキャップが用いられている。プラグキャップには、ノイズを抑制するための抵抗体を備えるものが知られている（例えば、特許文献１）。このプラグキャップでは、頭部端子が装着されるコネクタ金具と、抵抗体とを電気的に接続する導体が、樹脂性のキャップ本体にインサート成型により組み付けられている。
In order to supply a high voltage for ignition from the ignition coil to the head terminal of the spark plug, a plug cord that electrically connects the plug cord connected to the ignition coil and the head terminal of the spark plug is used. ing. A plug cap having a resistor for suppressing noise is known (for example, Patent Document 1). In this plug cap, the connector metal fitting to which the head terminal is mounted and the conductor that electrically connects the resistor are assembled to the resin cap body by insert molding.
しかしながら、インサート成型は、成型効率が低いため、プラグキャップの生産性が低下するおそれがあった。
However, since insert molding has low molding efficiency, the productivity of the plug cap may be reduced.
本発明は、プラグキャップの生産性を向上することを目的とする。
The present invention aims to improve the productivity of plug caps.
本発明は、上述の課題の少なくとも一部を解決するために、以下の形態または適用例を取ることが可能である。
The present invention can take the following forms or application examples in order to solve at least a part of the problems described above.
［適用例１］スパークプラグ用のプラグキャップであって、
第１の開口部を有する第１の空洞部と第２の開口部を有する第２の空洞部とを有するキャップ本体と、
前記第１の開口部からプラグコードを接続可能なように、前記第１の空洞部に配置されたコード接続部材と、
前記第２の開口部から前記スパークプラグの端子を接続可能なように、前記第２の空洞部に配置されたプラグ接続部材と、
前記第２の空洞部に前記プラグ接続部材より内側に配置された抵抗体と、
を備え、
前記プラグ接続部材と前記抵抗体とは、互いに接触した状態で固定され、
前記抵抗体と固定された前記プラグ接続部材は、前記キャップ本体の前記第２の空洞部に圧入されている、プラグキャップ。
こうすれば、プラグ接続部材と抵抗体とが互いに接触した状態で固定されているので、プラグ接続部材と抵抗体を接続するための別部材が不要になるとともに、製造が容易となる。また、抵抗体と固定されたプラグ接続部材を、キャップ本体に圧入するだけで、キャップ本体に抵抗体とプラグ接続部材とを組み付けられるので、プラグキャップの生産性が向上する。 [Application Example 1] A plug cap for a spark plug,
A cap body having a first cavity having a first opening and a second cavity having a second opening;
A cord connecting member disposed in the first cavity so that a plug cord can be connected from the first opening;
A plug connecting member disposed in the second cavity so that a terminal of the spark plug can be connected from the second opening;
A resistor disposed inside the plug connection member in the second cavity,
With
The plug connecting member and the resistor are fixed in contact with each other,
The plug connecting member fixed to the resistor is a plug cap that is press-fitted into the second cavity of the cap body.
If it carries out like this, since the plug connection member and the resistor are being fixed in the state which mutually contacted, another member for connecting a plug connection member and a resistor will become unnecessary, and manufacture will become easy. Further, since the resistor and the plug connecting member can be assembled to the cap body simply by press-fitting the plug connecting member fixed to the resistor into the cap body, the productivity of the plug cap is improved.
第１の開口部を有する第１の空洞部と第２の開口部を有する第２の空洞部とを有するキャップ本体と、
前記第１の開口部からプラグコードを接続可能なように、前記第１の空洞部に配置されたコード接続部材と、
前記第２の開口部から前記スパークプラグの端子を接続可能なように、前記第２の空洞部に配置されたプラグ接続部材と、
前記第２の空洞部に前記プラグ接続部材より内側に配置された抵抗体と、
を備え、
前記プラグ接続部材と前記抵抗体とは、互いに接触した状態で固定され、
前記抵抗体と固定された前記プラグ接続部材は、前記キャップ本体の前記第２の空洞部に圧入されている、プラグキャップ。
こうすれば、プラグ接続部材と抵抗体とが互いに接触した状態で固定されているので、プラグ接続部材と抵抗体を接続するための別部材が不要になるとともに、製造が容易となる。また、抵抗体と固定されたプラグ接続部材を、キャップ本体に圧入するだけで、キャップ本体に抵抗体とプラグ接続部材とを組み付けられるので、プラグキャップの生産性が向上する。 [Application Example 1] A plug cap for a spark plug,
A cap body having a first cavity having a first opening and a second cavity having a second opening;
A cord connecting member disposed in the first cavity so that a plug cord can be connected from the first opening;
A plug connecting member disposed in the second cavity so that a terminal of the spark plug can be connected from the second opening;
A resistor disposed inside the plug connection member in the second cavity,
With
The plug connecting member and the resistor are fixed in contact with each other,
The plug connecting member fixed to the resistor is a plug cap that is press-fitted into the second cavity of the cap body.
If it carries out like this, since the plug connection member and the resistor are being fixed in the state which mutually contacted, another member for connecting a plug connection member and a resistor will become unnecessary, and manufacture will become easy. Further, since the resistor and the plug connecting member can be assembled to the cap body simply by press-fitting the plug connecting member fixed to the resistor into the cap body, the productivity of the plug cap is improved.
［適用例２］適用例１に記載のプラグキャップであって、
前記プラグ接続部材と前記抵抗体とは、圧入によって固定されている、プラグキャップ。
こうすれば、圧入によって、簡単にプラグ接続部材と抵抗体とを接触した状態で固定できる。 [Application Example 2] The plug cap according to Application Example 1,
The plug connecting member and the resistor are plug caps fixed by press-fitting.
If it carries out like this, it can fix in the state which the plug connection member and the resistor contacted easily by press injection.
前記プラグ接続部材と前記抵抗体とは、圧入によって固定されている、プラグキャップ。
こうすれば、圧入によって、簡単にプラグ接続部材と抵抗体とを接触した状態で固定できる。 [Application Example 2] The plug cap according to Application Example 1,
The plug connecting member and the resistor are plug caps fixed by press-fitting.
If it carries out like this, it can fix in the state which the plug connection member and the resistor contacted easily by press injection.
［適用例３］適用例１または適用例２に記載のプラグキャップであって、
前記プラグ接続部材は、前記スパークプラグの端子が嵌合するための凹状部を有する接続部材本体と、前記凹状部に挿入されたパイプ部材と、を有する、プラグキャップ。
こうすれば、例えば、パイプ部材がスパークプラグの端子と直接接触するので、プラグ接続部材がスパークプラグの端子と直接に接触することを避けられ、プラグキャップの耐摩耗性を向上することができる。 [Application Example 3] The plug cap according to Application Example 1 or Application Example 2,
The plug connecting member includes a connecting member main body having a concave portion for fitting a terminal of the spark plug, and a pipe member inserted into the concave portion.
In this case, for example, since the pipe member is in direct contact with the terminal of the spark plug, the plug connecting member can be prevented from coming into direct contact with the terminal of the spark plug, and the wear resistance of the plug cap can be improved.
前記プラグ接続部材は、前記スパークプラグの端子が嵌合するための凹状部を有する接続部材本体と、前記凹状部に挿入されたパイプ部材と、を有する、プラグキャップ。
こうすれば、例えば、パイプ部材がスパークプラグの端子と直接接触するので、プラグ接続部材がスパークプラグの端子と直接に接触することを避けられ、プラグキャップの耐摩耗性を向上することができる。 [Application Example 3] The plug cap according to Application Example 1 or Application Example 2,
The plug connecting member includes a connecting member main body having a concave portion for fitting a terminal of the spark plug, and a pipe member inserted into the concave portion.
In this case, for example, since the pipe member is in direct contact with the terminal of the spark plug, the plug connecting member can be prevented from coming into direct contact with the terminal of the spark plug, and the wear resistance of the plug cap can be improved.
［適用例４］適用例１ないし適用例３のいずれかに記載のプラグキャップは、さらに、
前記抵抗体と前記コード接続部材とを電気的に接続するためのバネ部材を備える、プラグキャップ。
こうすれば、抵抗体とコード接続部材とを簡単な構成で電気的に接続することができる。 [Application Example 4] The plug cap according to any one of Application Examples 1 to 3,
A plug cap comprising a spring member for electrically connecting the resistor and the cord connecting member.
In this way, the resistor and the cord connecting member can be electrically connected with a simple configuration.
前記抵抗体と前記コード接続部材とを電気的に接続するためのバネ部材を備える、プラグキャップ。
こうすれば、抵抗体とコード接続部材とを簡単な構成で電気的に接続することができる。 [Application Example 4] The plug cap according to any one of Application Examples 1 to 3,
A plug cap comprising a spring member for electrically connecting the resistor and the cord connecting member.
In this way, the resistor and the cord connecting member can be electrically connected with a simple configuration.
［適用例５］スパークプラグ用のプラグキャップの製造方法であって、
（ａ）第１の開口部を有する第１の空洞部と第２の開口部を有する第２の空洞部とを有するキャップ本体を準備する工程と、
（ｂ）前記スパークプラグの端子を接続可能なプラグ接続部材と、抵抗体とを準備する工程と、
（ｃ）前記プラグ接続部材と、前記抵抗体とを固定する工程と、
（ｄ）前記抵抗体と固定された前記プラグ接続部材を、前記キャップ本体の前記第２の空洞部に固定する工程と、
を備える、製造方法。
こうすれば、プラグ接続部材と抵抗体とを固定してから、プラグ接続部材をキャップ本体に固定するので、製造が容易となり、プラグキャップの生産性が向上する。 Application Example 5 A method of manufacturing a plug cap for a spark plug,
(A) preparing a cap body having a first cavity having a first opening and a second cavity having a second opening;
(B) preparing a plug connecting member capable of connecting a terminal of the spark plug and a resistor;
(C) fixing the plug connecting member and the resistor;
(D) fixing the plug connecting member fixed to the resistor in the second cavity of the cap body;
A manufacturing method comprising:
In this case, the plug connecting member and the resistor are fixed, and then the plug connecting member is fixed to the cap body. Therefore, the manufacturing becomes easy and the productivity of the plug cap is improved.
（ａ）第１の開口部を有する第１の空洞部と第２の開口部を有する第２の空洞部とを有するキャップ本体を準備する工程と、
（ｂ）前記スパークプラグの端子を接続可能なプラグ接続部材と、抵抗体とを準備する工程と、
（ｃ）前記プラグ接続部材と、前記抵抗体とを固定する工程と、
（ｄ）前記抵抗体と固定された前記プラグ接続部材を、前記キャップ本体の前記第２の空洞部に固定する工程と、
を備える、製造方法。
こうすれば、プラグ接続部材と抵抗体とを固定してから、プラグ接続部材をキャップ本体に固定するので、製造が容易となり、プラグキャップの生産性が向上する。 Application Example 5 A method of manufacturing a plug cap for a spark plug,
(A) preparing a cap body having a first cavity having a first opening and a second cavity having a second opening;
(B) preparing a plug connecting member capable of connecting a terminal of the spark plug and a resistor;
(C) fixing the plug connecting member and the resistor;
(D) fixing the plug connecting member fixed to the resistor in the second cavity of the cap body;
A manufacturing method comprising:
In this case, the plug connecting member and the resistor are fixed, and then the plug connecting member is fixed to the cap body. Therefore, the manufacturing becomes easy and the productivity of the plug cap is improved.
［適用例６］適用例５に記載の製造方法であって、
前記（ｄ）工程は、前記抵抗体と固定された前記プラグ接続部材を前記キャップ本体の前記第２の空洞部に圧入することによって行われる、製造方法。
こうすれば、抵抗体と固定されたプラグ接続部材を、キャップ本体に圧入するだけで、キャップ本体に抵抗体とプラグ接続部材とを組み付けられるので、プラグキャップの生産性が向上する。 [Application Example 6] The manufacturing method according to Application Example 5,
The step (d) is performed by pressing the plug connecting member fixed to the resistor into the second cavity of the cap body.
In this way, the resistor and the plug connecting member can be assembled to the cap body simply by press-fitting the plug connecting member fixed to the resistor into the cap body, so that the productivity of the plug cap is improved.
前記（ｄ）工程は、前記抵抗体と固定された前記プラグ接続部材を前記キャップ本体の前記第２の空洞部に圧入することによって行われる、製造方法。
こうすれば、抵抗体と固定されたプラグ接続部材を、キャップ本体に圧入するだけで、キャップ本体に抵抗体とプラグ接続部材とを組み付けられるので、プラグキャップの生産性が向上する。 [Application Example 6] The manufacturing method according to Application Example 5,
The step (d) is performed by pressing the plug connecting member fixed to the resistor into the second cavity of the cap body.
In this way, the resistor and the plug connecting member can be assembled to the cap body simply by press-fitting the plug connecting member fixed to the resistor into the cap body, so that the productivity of the plug cap is improved.
［適用例７］適用例５または適用例６に記載の製造方法であって、
前記（ｃ）工程は、前記抵抗体を前記プラグ接続部材に圧入することによって行われる、製造方法。
こうすれば、圧入によって、簡単にプラグ接続部材と抵抗体とを接触した状態で固定できる。 [Application Example 7] The manufacturing method according to Application Example 5 or Application Example 6,
The step (c) is a manufacturing method that is performed by press-fitting the resistor into the plug connection member.
If it carries out like this, it can fix in the state which contacted the plug connection member and the resistor simply by press-fitting.
前記（ｃ）工程は、前記抵抗体を前記プラグ接続部材に圧入することによって行われる、製造方法。
こうすれば、圧入によって、簡単にプラグ接続部材と抵抗体とを接触した状態で固定できる。 [Application Example 7] The manufacturing method according to Application Example 5 or Application Example 6,
The step (c) is a manufacturing method that is performed by press-fitting the resistor into the plug connection member.
If it carries out like this, it can fix in the state which contacted the plug connection member and the resistor simply by press-fitting.
［適用例８］適用例５ないし適用例７のいずれかに記載の製造方法であって、
前記（ｂ）工程は、
（ｂ１）前記スパークプラグの端子が嵌合するための凹状部を有する接続部材本体と、パイプ部材を用意する工程と、
（ｂ２）前記凹状部に前記パイプ部材を挿入する工程と、
を含む、製造方法。
こうすれば、例えば、プラグ接続部材が、スパークプラグの端子と直接に接触することを避けられるので、プラグキャップの耐摩耗性を向上することができる。 [Application Example 8] The manufacturing method according to any one of Application Example 5 to Application Example 7,
The step (b)
(B1) a step of preparing a connection member main body having a concave portion for fitting a terminal of the spark plug, and a pipe member;
(B2) inserting the pipe member into the concave portion;
Manufacturing method.
In this case, for example, the plug connecting member can be prevented from coming into direct contact with the terminal of the spark plug, so that the wear resistance of the plug cap can be improved.
前記（ｂ）工程は、
（ｂ１）前記スパークプラグの端子が嵌合するための凹状部を有する接続部材本体と、パイプ部材を用意する工程と、
（ｂ２）前記凹状部に前記パイプ部材を挿入する工程と、
を含む、製造方法。
こうすれば、例えば、プラグ接続部材が、スパークプラグの端子と直接に接触することを避けられるので、プラグキャップの耐摩耗性を向上することができる。 [Application Example 8] The manufacturing method according to any one of Application Example 5 to Application Example 7,
The step (b)
(B1) a step of preparing a connection member main body having a concave portion for fitting a terminal of the spark plug, and a pipe member;
(B2) inserting the pipe member into the concave portion;
Manufacturing method.
In this case, for example, the plug connecting member can be prevented from coming into direct contact with the terminal of the spark plug, so that the wear resistance of the plug cap can be improved.
［適用例９］適用例５ないし適用例８のいずれかに記載の製造方法は、さらに、
（ｅ）前記キャップ本体の前記第１の空洞部に、プラグコードを接続するためのコード接続部材を固定する工程を備える、製造方法。
こうすれば、キャップ本体にプラグコードを容易に接続することができる。 [Application Example 9] The manufacturing method according to any one of Application Example 5 to Application Example 8,
(E) A manufacturing method comprising a step of fixing a cord connecting member for connecting a plug cord to the first cavity of the cap body.
In this way, the plug cord can be easily connected to the cap body.
（ｅ）前記キャップ本体の前記第１の空洞部に、プラグコードを接続するためのコード接続部材を固定する工程を備える、製造方法。
こうすれば、キャップ本体にプラグコードを容易に接続することができる。 [Application Example 9] The manufacturing method according to any one of Application Example 5 to Application Example 8,
(E) A manufacturing method comprising a step of fixing a cord connecting member for connecting a plug cord to the first cavity of the cap body.
In this way, the plug cord can be easily connected to the cap body.
Ａ．第１実施例：
以下、本発明の実施の形態を実施例に基づいて説明する。図１は本発明の一実施例としてのプラグキャップ１００の断面図である。 A. First embodiment:
Hereinafter, embodiments of the present invention will be described based on examples. FIG. 1 is a cross-sectional view of aplug cap 100 as an embodiment of the present invention.
以下、本発明の実施の形態を実施例に基づいて説明する。図１は本発明の一実施例としてのプラグキャップ１００の断面図である。 A. First embodiment:
Hereinafter, embodiments of the present invention will be described based on examples. FIG. 1 is a cross-sectional view of a
図１に示すように、プラグキャップ１００は、キャップ本体１１０と、木ねじ１２０と、バネ１３０と、抵抗体１４０と、コネクタ部材１５０と、パイプ部材１６０と、Ｒピン１７０と、キクザ１８０、１９０とを備えている。
As shown in FIG. 1, the plug cap 100 includes a cap body 110, a wood screw 120, a spring 130, a resistor 140, a connector member 150, a pipe member 160, an R pin 170, and kikuza 180 and 190. It has.
キャップ本体１１０は、フェノール樹脂などの樹脂材料で形成されている。キャップ本体１１０には、第１の開口ＯＰ１を有する第１の空洞部Ｈ１と、第２の開口ＯＰ２を有する第２の空洞部Ｈ２が形成されている。第１の空洞部Ｈ１は、図１におけるＸ－Ｚ平面上にあって、Ｘ軸と約３０度の角度をなす直線を中心軸とする円筒形状部Ｈ１１と、木ねじ１２０の頭部が嵌合可能な形状を有する奥部Ｈ１２を有している。第２の空洞部Ｈ２は、図１におけるＺ軸を中心軸とする第１～第３の円筒形状部Ｈ２１、Ｈ２２、Ｈ２３を有している。第１～第３の円筒形状部Ｈ２１、Ｈ２２、Ｈ２３は、第２の開口ＯＰ２側から、この順番に配置されている。第１～第３の円筒形状部Ｈ２１、Ｈ２２、Ｈ２３は、内径が異なり、これらの内径はこの順番で順次に小さくなっている。第２の円筒形状部Ｈ２２の内径は、コネクタ部材１５０が圧入可能なように、コネクタ部材１５０の外径より僅かに小さく設定されている。第３の円筒形状部Ｈ２３の内径は、抵抗体１４０を収納可能な程度の大きさを有している。第１の空洞部Ｈ１の奥部Ｈ１２と、第２の空洞部Ｈ２の第３の円筒形状部Ｈ２３の奥側の端部は、接続空洞部ＣＮによって連通されている。接続空洞部ＣＮは、中央部が湾曲した筒型形状を有しており、内部にバネ１３０が収容される。
The cap body 110 is made of a resin material such as phenol resin. The cap body 110 is formed with a first cavity H1 having a first opening OP1 and a second cavity H2 having a second opening OP2. The first hollow portion H1 is on the XZ plane in FIG. 1, and the head portion of the wood screw 120 and the cylindrical portion H11 centering on a straight line forming an angle of about 30 degrees with the X axis are fitted. It has a back H12 having a possible shape. The second cavity H2 has first to third cylindrical portions H21, H22, and H23 having the Z axis in FIG. 1 as the central axis. The first to third cylindrical portions H21, H22, H23 are arranged in this order from the second opening OP2 side. The first to third cylindrical portions H21, H22, and H23 have different inner diameters, and these inner diameters are sequentially reduced in this order. The inner diameter of the second cylindrical portion H22 is set slightly smaller than the outer diameter of the connector member 150 so that the connector member 150 can be press-fitted. The inner diameter of the third cylindrical portion H23 is large enough to accommodate the resistor 140. The back part H12 of the first cavity part H1 and the end part on the back side of the third cylindrical part H23 of the second cavity part H2 are communicated with each other by the connection cavity part CN. The connection cavity portion CN has a cylindrical shape with a curved central portion, and the spring 130 is accommodated therein.
木ねじ１２０は、電導性を有する金属で形成され、外周に雄ねじが刻設されている。木ねじ１２０の雄ねじにプラグコード（図示省略）の先端を螺合させることによって、プラグコードと木ねじ１２０は、電気的に接続される。バネ１３０は、電導性を有する金属で形成され、キャップ本体１１０の接続空洞部ＣＮに、湾曲し、かつ、軸方向に圧縮されて収容されている。バネ１３０の一方の端部は、バネ１３０の反発力によって、木ねじ１２０の頭部に圧接され、他方の端部は、バネ１３０の反発力によって、抵抗体１４０の保護キャップ１４１に圧接されている。これにより、バネ１３０を介して、木ねじ１２０と抵抗体１４０とが電気的に接続される。
The wood screw 120 is formed of a conductive metal, and a male screw is engraved on the outer periphery. The plug cord and the wood screw 120 are electrically connected by screwing the end of a plug cord (not shown) to the male screw of the wood screw 120. The spring 130 is formed of a conductive metal, and is accommodated in the connection cavity CN of the cap body 110 while being curved and compressed in the axial direction. One end of the spring 130 is pressed against the head of the wood screw 120 by the repulsive force of the spring 130, and the other end is pressed against the protective cap 141 of the resistor 140 by the repulsive force of the spring 130. . Thereby, the wood screw 120 and the resistor 140 are electrically connected via the spring 130.
抵抗体１４０は、セラミックスで形成された円筒形状を有しており、両端部に銀のペースト（図示省略）が塗布されている。抵抗体１４０のバネ１３０側の端部には、抵抗体１４０を保護するＳＵＳ（ステンレス）製の保護キャップ１４１が被せられている。抵抗体１４０は、所定の抵抗値を有する導電性セラミックスであり、電気的なノイズを抑制するために設けられている。
The resistor 140 has a cylindrical shape made of ceramics, and silver paste (not shown) is applied to both ends. The end of the resistor 140 on the spring 130 side is covered with a protective cap 141 made of SUS (stainless steel) that protects the resistor 140. The resistor 140 is a conductive ceramic having a predetermined resistance value, and is provided to suppress electrical noise.
コネクタ部材１５０は、快削黄銅により形成されている。コネクタ部材１５０は、図１におけるＺ軸を中心軸とした中空の円筒形状を有している。コネクタ部材１５０のＺ軸の正方向側の端部は壁部によって閉じられており、Ｚ軸の負方向側の端部は、開口されている。コネクタ部材１５０の正方向側の端部の壁の外側には、抵抗体１４０を嵌め込むための孔Ｈ４が形成されている。コネクタ部材１５０の孔Ｈ４に抵抗体１４０が嵌め込まれることにより、コネクタ部材１５０と抵抗体１４０は互いに接触した状態で固定される。コネクタ部材１５０の中空部Ｈ３には、パイプ部材１６０が挿入されている。パイプ部材１６０は、ＳＵＳで作製されたパイプである。パイプ部材１６０には、使用時において、プラグキャップの上部端子が挿入される。
The connector member 150 is made of free-cutting brass. The connector member 150 has a hollow cylindrical shape with the Z axis in FIG. 1 as the central axis. The end of the connector member 150 on the positive side of the Z axis is closed by a wall, and the end of the negative side of the Z axis is opened. A hole H4 for fitting the resistor 140 is formed on the outside of the wall at the end portion on the positive direction side of the connector member 150. By fitting the resistor 140 into the hole H4 of the connector member 150, the connector member 150 and the resistor 140 are fixed in contact with each other. A pipe member 160 is inserted into the hollow portion H3 of the connector member 150. The pipe member 160 is a pipe made of SUS. An upper terminal of a plug cap is inserted into the pipe member 160 in use.
コネクタ部材１５０の外周には、中空部Ｈ３と連通する第１の切り欠きＮＴ１と、中空部Ｈ３と連通しない第２の切り欠きＮＴ２とが形成されている。第１の切り欠きＮＴ１と第２の切り欠きＮＴ２には、Ｒピン１７０が嵌装されている。Ｒピン１７０は、Ｚ軸方向から見た形状がＲ字型の形状を有している。Ｒピン１７０は、細い棒状の金属を曲げ加工することによって作製される。Ｒピン１７０によって、コネクタ部材１５０の中空部Ｈ３に配置されたパイプ部材１６０が抜け落ちないようにされる。また、Ｒピン１７０によって、パイプ部材１６０に挿入されたプラグキャップの上部端子が脱抜しないように、固定される。
A first cutout NT1 that communicates with the hollow portion H3 and a second cutout NT2 that does not communicate with the hollow portion H3 are formed on the outer periphery of the connector member 150. An R pin 170 is fitted into the first notch NT1 and the second notch NT2. The R pin 170 has an R shape when viewed from the Z-axis direction. The R pin 170 is manufactured by bending a thin rod-shaped metal. The R pin 170 prevents the pipe member 160 disposed in the hollow portion H3 of the connector member 150 from falling off. Further, the R pin 170 is fixed so that the upper terminal of the plug cap inserted into the pipe member 160 is not removed.
キクザ１８０、１９０は、平面視が円形状を有しており、円形状の外縁部にギザギザ形状が形成されている。キクザ１８０、１９０の円形状の中央部には、孔が形成されており、当該孔に木ねじ１２０の軸部分が挿入される。キクザ１８０、１９０は、キャップ本体１１０の第１の空洞部Ｈ１の奥において、木ねじ１２０の頭部に当接するまで押し込まれており、これによって、木ねじ１２０をキャップ本体１１０に対して固定している。
The kikuza 180 and 190 have a circular shape in plan view, and a jagged shape is formed at the outer edge of the circular shape. A hole is formed in the circular central part of the kikuza 180 and 190, and the shaft portion of the wood screw 120 is inserted into the hole. The kikuza 180 and 190 are pushed into the back of the first cavity H1 of the cap body 110 until they come into contact with the head of the wood screw 120, thereby fixing the wood screw 120 to the cap body 110. .
図２は、プラグキャップ１００の製造方法の工程を示すフローチャートである。図３～図５は、プラグキャップ１００の製造方法を説明するための図である。
FIG. 2 is a flowchart showing the steps of the method for manufacturing the plug cap 100. 3 to 5 are diagrams for explaining a method of manufacturing the plug cap 100. FIG.
ステップＳ１０では、各部品、すなわち、キャップ本体１１０、木ねじ１２０、バネ１３０、抵抗体１４０、保護キャップ１４１、コネクタ部材１５０、パイプ部材１６０、Ｒピン１７０、キクザ１８０、１９０が準備される。
In step S10, each part, that is, the cap main body 110, the wood screw 120, the spring 130, the resistor 140, the protective cap 141, the connector member 150, the pipe member 160, the R pin 170, and the kikuza 180 and 190 are prepared.
ステップＳ２０では、コネクタ部材１５０の中空部Ｈ３にパイプ部材１６０が挿入される（図３）。パイプ部材１６０の挿入は、例えば、ハンドプレスによって行われる。
In step S20, the pipe member 160 is inserted into the hollow portion H3 of the connector member 150 (FIG. 3). The pipe member 160 is inserted by, for example, a hand press.
ステップＳ３０では、コネクタ部材１５０の第１の切り欠きＮＴ１および第２の切り欠きＮＴ２にＲピン１７０が組み付けられる。Ｒピン１７０は、コネクタ部材１５０に装着された後、不要な端部が切断される。
In step S30, the R pin 170 is assembled to the first notch NT1 and the second notch NT2 of the connector member 150. After the R pin 170 is attached to the connector member 150, an unnecessary end portion is cut.
ステップＳ４０では、コネクタ部材１５０の孔Ｈ４に抵抗体１４０が圧入される。まず、保護キャップ１４１がプレス機の治具下型に配置され、抵抗体１４０が治具上型に配置された状態でプレスを行うことにより、保護キャップ１４１に抵抗体１４０が圧入される。続けて、治具上型にコネクタ部材１５０が配置された状態でプレスを行うことにより、コネクタ部材１５０の孔Ｈ４に抵抗体１４０が圧入される（図３）。
In step S40, the resistor 140 is press-fitted into the hole H4 of the connector member 150. First, the resistor 140 is press-fitted into the protective cap 141 by performing pressing in a state where the protective cap 141 is disposed on the lower jig of the press machine and the resistor 140 is disposed on the upper jig. Subsequently, pressing is performed in a state where the connector member 150 is disposed on the upper die of the jig, so that the resistor 140 is press-fitted into the hole H4 of the connector member 150 (FIG. 3).
このようにして、コネクタ部材１５０に抵抗体１４０が互いに接触した状態で固定され、さらに、パイプ部材１６０、Ｒピン１７０、保護キャップ１４１が組み付けられたアセンブリ（図４）が作製されると、ステップＳ５０では、当該アッセンブリがキャップ本体１１０の第２の空洞部Ｈ２に第２の開口ＯＰ２から熱間圧入される。具体的には、アッセンブリのうち、コネクタ部材１５０の円筒形状の外面が、第２の空洞部Ｈ２の第２の円筒形状部Ｈ２２に圧入により固定される。その結果、抵抗体１４０は、第２の空洞部Ｈ２の第３の円筒形状部Ｈ２３に収容される（図５）。
Thus, when the resistor 140 is fixed to the connector member 150 in contact with each other, and an assembly (FIG. 4) in which the pipe member 160, the R pin 170, and the protective cap 141 are assembled is manufactured (step 4). In S50, the assembly is hot-pressed into the second cavity H2 of the cap body 110 from the second opening OP2. Specifically, in the assembly, the cylindrical outer surface of the connector member 150 is fixed to the second cylindrical portion H22 of the second cavity H2 by press-fitting. As a result, the resistor 140 is accommodated in the third cylindrical portion H23 of the second cavity H2 (FIG. 5).
ステップＳ６０では、第１の開口ＯＰ１から、キャップ本体１１０の接続空洞部ＣＮに、バネ１３０が組み付けられる。ステップＳ７０では、第１の開口ＯＰ１から、キャップ本体１１０の第１の空洞部Ｈ１に木ねじ１２０とキクザ１８０が組み付けられる。ステップＳ８０では、第１の開口ＯＰ１から、第１の空洞部Ｈ１に、キクザ１９０が組み付けられる。キクザ１８０、１９０が、第１の空洞部Ｈ１の奥まで押し込まれることにより、木ねじ１２０は、頭部が第１の空洞部Ｈ１の奥部Ｈ１２に固定される。
In step S60, the spring 130 is assembled from the first opening OP1 to the connection cavity CN of the cap body 110. In step S70, the wood screw 120 and the kikuza 180 are assembled into the first cavity H1 of the cap body 110 from the first opening OP1. In step S80, the kikuza 190 is assembled into the first cavity H1 from the first opening OP1. As the kikuza 180 and 190 are pushed to the back of the first cavity H1, the head of the wood screw 120 is fixed to the interior H12 of the first cavity H1.
以上説明した本実施例によれば、コネクタ部材１５０と抵抗体１４０が接触された状態で固定されているので、コネクタ部材１５０と抵抗体１４０を接続する部材が不要であり、部品点数を削減できる。さらに、コネクタ部材１５０と抵抗体１４０を接続する部材が不要であるため、当該接続部材をキャップ本体にインサート成型する必要がなく、製造が容易である。
According to the present embodiment described above, since the connector member 150 and the resistor 140 are fixed in contact with each other, a member for connecting the connector member 150 and the resistor 140 is unnecessary, and the number of parts can be reduced. . Further, since a member for connecting the connector member 150 and the resistor 140 is not necessary, it is not necessary to insert-mold the connection member into the cap body, and manufacturing is easy.
さらに、抵抗体１４０とコネクタ部材１５０とが互いに固定されたアッセンブリを、キャップ本体１１０に圧入により組み付けるので、製造が容易である。さらに、コネクタ部材１５０の中空部Ｈ３にパイプ部材１６０を挿入しているので、スパークプラグの上部端子が直接にコネクタ部材１５０に接触しない。このため、コネクタ部材１５０に安価で加工容易な快削黄銅を用いつつも、スパークプラグの上部端子に対する対摩耗性に優れたプラグキャップ１００を実現できる。
Furthermore, since the assembly in which the resistor 140 and the connector member 150 are fixed to each other is assembled into the cap body 110 by press fitting, manufacturing is easy. Furthermore, since the pipe member 160 is inserted into the hollow portion H3 of the connector member 150, the upper terminal of the spark plug does not directly contact the connector member 150. For this reason, it is possible to realize the plug cap 100 having excellent wear resistance with respect to the upper terminal of the spark plug while using inexpensive and easily machined free-cutting brass for the connector member 150.
さらに、抵抗体１４０と木ねじ１２０との電気的な接続を確保するために、バネ１３０を用いているので、製造が容易である。例えば、抵抗体１４０と木ねじ１２０との間を接続する部材をインサート成型したり、抵抗体１４０や木ねじ１２０と溶接したりする工程が不要である。
Furthermore, since the spring 130 is used to secure the electrical connection between the resistor 140 and the wood screw 120, the manufacturing is easy. For example, a process of insert molding a member connecting the resistor 140 and the wood screw 120 or welding the resistor 140 and the wood screw 120 is unnecessary.
なお、本実施例において、コネクタ部材１５０が特許請求の範囲におけるプラグ接続部材に対応する。また、コネクタ部材１５０の中空部Ｈ３が特許請求の範囲における凹状部に対応する。また、木ねじ１２０が特許請求の範囲におけるコード接続部材に対応する。
In this embodiment, the connector member 150 corresponds to the plug connecting member in the claims. Further, the hollow portion H3 of the connector member 150 corresponds to the concave portion in the claims. The wood screw 120 corresponds to the cord connecting member in the claims.
Ｂ．変形例：
・第１変形例：
上記実施例では、抵抗体１４０と木ねじ１２０との電気的な接続にバネ１３０を用いているが、これに限らず、様々な導電性部材が用いられ得る。この導電性部材には、抵抗体１４０および木ねじ１２０との良好な接触を確保するため、弾性部材であることが好ましい。 B. Variations:
・ First modification:
In the above-described embodiment, thespring 130 is used for electrical connection between the resistor 140 and the wood screw 120. However, the present invention is not limited to this, and various conductive members can be used. In order to ensure good contact with the resistor 140 and the wood screw 120, the conductive member is preferably an elastic member.
・第１変形例：
上記実施例では、抵抗体１４０と木ねじ１２０との電気的な接続にバネ１３０を用いているが、これに限らず、様々な導電性部材が用いられ得る。この導電性部材には、抵抗体１４０および木ねじ１２０との良好な接触を確保するため、弾性部材であることが好ましい。 B. Variations:
・ First modification:
In the above-described embodiment, the
・第２変形例：
上記実施例では、抵抗体１４０はセラミックスとしたが、巻線抵抗体でも良い。また、コネクタ部材１５０は快削黄銅など、各部品の材質を特定しているが、これらの材質は、実施例に限られるわけではなく、各種金属、導電性樹脂、導電性セラミックスなど様々な材質が用いられ得る。 ・ Second modification:
In the above embodiment, theresistor 140 is ceramic, but may be a winding resistor. The connector member 150 specifies the material of each component such as free-cutting brass. However, these materials are not limited to the embodiment, and various materials such as various metals, conductive resins, and conductive ceramics. Can be used.
上記実施例では、抵抗体１４０はセラミックスとしたが、巻線抵抗体でも良い。また、コネクタ部材１５０は快削黄銅など、各部品の材質を特定しているが、これらの材質は、実施例に限られるわけではなく、各種金属、導電性樹脂、導電性セラミックスなど様々な材質が用いられ得る。 ・ Second modification:
In the above embodiment, the
・第３変形例：
上記実施例では、キャップ本体１１０において、第２の空洞部Ｈ２の軸線と、第１の空洞部Ｈ１の軸線とが、約１２０度の角度を有しているが、この角度は様々に変更可能である。例えば、約９０度、約１５０度など適宜変更され得る。また、キャップ本体１１０は、フェノール樹脂で形成されているが、他の熱硬化性樹脂であっても良いし、その他ＰＰＳ樹脂などの熱可塑性樹脂など様々な絶縁性の材質で作製され得る。 ・ Third modification:
In the above embodiment, in thecap body 110, the axis of the second cavity H2 and the axis of the first cavity H1 have an angle of about 120 degrees, but this angle can be changed variously. It is. For example, about 90 degrees, about 150 degrees, and the like can be appropriately changed. The cap body 110 is formed of a phenol resin, but may be other thermosetting resins, and may be made of various insulating materials such as other thermoplastic resins such as PPS resin.
上記実施例では、キャップ本体１１０において、第２の空洞部Ｈ２の軸線と、第１の空洞部Ｈ１の軸線とが、約１２０度の角度を有しているが、この角度は様々に変更可能である。例えば、約９０度、約１５０度など適宜変更され得る。また、キャップ本体１１０は、フェノール樹脂で形成されているが、他の熱硬化性樹脂であっても良いし、その他ＰＰＳ樹脂などの熱可塑性樹脂など様々な絶縁性の材質で作製され得る。 ・ Third modification:
In the above embodiment, in the
・第４変形例：
上記実施例では、コネクタ部材１５０は、キャップ本体１１０に熱間圧入されているが、キャップ本体１１０の材質によっては、冷間圧入でも良い。また、コネクタ部材１５０は、圧入に限らず、ねじ込み、接着剤などで、キャップ本体１１０に固定されても良い。 -Fourth modification:
In the above embodiment, theconnector member 150 is hot-pressed into the cap body 110, but depending on the material of the cap body 110, it may be cold-pressed. The connector member 150 is not limited to press-fitting, and may be fixed to the cap body 110 by screwing, an adhesive, or the like.
上記実施例では、コネクタ部材１５０は、キャップ本体１１０に熱間圧入されているが、キャップ本体１１０の材質によっては、冷間圧入でも良い。また、コネクタ部材１５０は、圧入に限らず、ねじ込み、接着剤などで、キャップ本体１１０に固定されても良い。 -Fourth modification:
In the above embodiment, the
・第５変形例：
上記実施例では、コネクタ部材１５０と抵抗体１４０とは、圧入によって互いに固定されているが、コネクタ部材１５０と抵抗体１４０との固定手法は、これに限らず、ねじ込み、接着剤などで固定されても良い。 -5th modification:
In the above embodiment, theconnector member 150 and the resistor 140 are fixed to each other by press-fitting. However, the fixing method of the connector member 150 and the resistor 140 is not limited to this, and is fixed by screwing, an adhesive, or the like. May be.
上記実施例では、コネクタ部材１５０と抵抗体１４０とは、圧入によって互いに固定されているが、コネクタ部材１５０と抵抗体１４０との固定手法は、これに限らず、ねじ込み、接着剤などで固定されても良い。 -5th modification:
In the above embodiment, the
・第６変形例：
上記実施例では、プラグコードとプラグキャップ１００との固定は、木ねじ１２０の雄ねじによって行われ、スパークプラグの上部端子とプラグキャップ１００との固定は、Ｒピン１７０によって行われるが、これらの固定の手法はこれに限らず、様々な固定方法が採用され得る。 -6th modification:
In the above embodiment, the plug cord and theplug cap 100 are fixed by the male screw of the wood screw 120, and the upper terminal of the spark plug and the plug cap 100 are fixed by the R pin 170. The method is not limited to this, and various fixing methods can be adopted.
上記実施例では、プラグコードとプラグキャップ１００との固定は、木ねじ１２０の雄ねじによって行われ、スパークプラグの上部端子とプラグキャップ１００との固定は、Ｒピン１７０によって行われるが、これらの固定の手法はこれに限らず、様々な固定方法が採用され得る。 -6th modification:
In the above embodiment, the plug cord and the
以上、本発明の実施例および変形例について説明したが、本発明はこれらの実施例および変形例になんら限定されるものではなく、その要旨を逸脱しない範囲内において種々の態様での実施が可能である。
As mentioned above, although the Example and modification of this invention were demonstrated, this invention is not limited to these Example and modification at all, and implementation in a various aspect is possible within the range which does not deviate from the summary. It is.
本発明を詳細にまた特定の実施態様を参照して説明したが、本発明の精神と範囲を逸脱することなく様々な変更や修正を加えることができることは当業者にとって明らかである。
Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
本出願は、２００９年２月２３日出願の日本特許出願（特願２００９－０３９２１５）、に基づくものであり、その内容はここに参照として取り込まれる。
This application is based on a Japanese patent application filed on Feb. 23, 2009 (Japanese Patent Application No. 2009-039215), the contents of which are incorporated herein by reference.
１００…プラグキャップ
１１０…キャップ本体
１２０…木ねじ
１３０…バネ
１４０…抵抗体
１４１…保護キャップ
１５０…コネクタ部材
１６０…パイプ部材
１７０…Ｒピン
１８０…キクザ DESCRIPTION OFSYMBOLS 100 ... Plug cap 110 ... Cap main body 120 ... Wood screw 130 ... Spring 140 ... Resistor 141 ... Protection cap 150 ... Connector member 160 ... Pipe member 170 ... R pin 180 ... Kikuza
１１０…キャップ本体
１２０…木ねじ
１３０…バネ
１４０…抵抗体
１４１…保護キャップ
１５０…コネクタ部材
１６０…パイプ部材
１７０…Ｒピン
１８０…キクザ DESCRIPTION OF
Claims (9)
- スパークプラグ用のプラグキャップであって、
第１の開口部を有する第１の空洞部と第２の開口部を有する第２の空洞部とを有するキャップ本体と、
前記第１の開口部からプラグコードを接続可能なように、前記第１の空洞部に配置されたコード接続部材と、
前記第２の開口部から前記スパークプラグの端子を接続可能なように、前記第２の空洞部に配置されたプラグ接続部材と、
前記第２の空洞部に前記プラグ接続部材より内側に配置された抵抗体と、
を備え、
前記プラグ接続部材と前記抵抗体とは、互いに接触した状態で固定され、
前記抵抗体と固定された前記プラグ接続部材は、前記キャップ本体の前記第２の空洞部に圧入されている、プラグキャップ。 A plug cap for a spark plug,
A cap body having a first cavity having a first opening and a second cavity having a second opening;
A cord connecting member disposed in the first cavity so that a plug cord can be connected from the first opening;
A plug connecting member disposed in the second cavity so that a terminal of the spark plug can be connected from the second opening;
A resistor disposed inside the plug connection member in the second cavity,
With
The plug connecting member and the resistor are fixed in contact with each other,
The plug connecting member fixed to the resistor is press-fitted into the second cavity of the cap body. - 請求項１に記載のプラグキャップであって、
前記プラグ接続部材と前記抵抗体とは、圧入によって固定されている、プラグキャップ。 The plug cap according to claim 1,
The plug connecting member and the resistor are plug caps fixed by press-fitting. - 請求項１または請求項２に記載のプラグキャップであって、
前記プラグ接続部材は、前記スパークプラグの端子が嵌合するための凹状部を有する接続部材本体と、前記凹状部に挿入されたパイプ部材と、を有する、プラグキャップ。 The plug cap according to claim 1 or 2,
The plug connecting member includes a connecting member main body having a concave portion for fitting a terminal of the spark plug, and a pipe member inserted into the concave portion. - 請求項１ないし請求項３のいずれかに記載のプラグキャップは、さらに、
前記抵抗体と前記コード接続部材とを電気的に接続するためのバネ部材を備える、プラグキャップ。 The plug cap according to any one of claims 1 to 3,
A plug cap comprising a spring member for electrically connecting the resistor and the cord connecting member. - スパークプラグ用のプラグキャップの製造方法であって、
（ａ）第１の開口部を有する第１の空洞部と第２の開口部を有する第２の空洞部とを有するキャップ本体を準備する工程と、
（ｂ）前記スパークプラグの端子を接続可能なプラグ接続部材と、抵抗体とを準備する工程と、
（ｃ）前記プラグ接続部材と、前記抵抗体とを固定する工程と、
（ｄ）前記抵抗体と固定された前記プラグ接続部材を、前記キャップ本体の前記第２の空洞部に固定する工程と、
を備える、製造方法。 A method for manufacturing a plug cap for a spark plug, comprising:
(A) preparing a cap body having a first cavity having a first opening and a second cavity having a second opening;
(B) preparing a plug connecting member capable of connecting a terminal of the spark plug and a resistor;
(C) fixing the plug connecting member and the resistor;
(D) fixing the plug connecting member fixed to the resistor in the second cavity of the cap body;
A manufacturing method comprising: - 請求項５に記載の製造方法であって、
前記（ｄ）工程は、前記抵抗体と固定された前記プラグ接続部材を前記キャップ本体の前記第２の空洞部に圧入することによって行われる、製造方法。 It is a manufacturing method of Claim 5, Comprising:
The step (d) is performed by pressing the plug connecting member fixed to the resistor into the second cavity of the cap body. - 請求項５または請求項６に記載の製造方法であって、
前記（ｃ）工程は、前記抵抗体を前記プラグ接続部材に圧入することによって行われる、製造方法。 The manufacturing method according to claim 5 or 6,
The step (c) is a manufacturing method that is performed by press-fitting the resistor into the plug connection member. - 請求項５ないし請求項７のいずれかに記載の製造方法であって、
前記（ｂ）工程は、
（ｂ１）前記スパークプラグの端子が嵌合するための凹状部を有する接続部材本体と、パイプ部材を用意する工程と、
（ｂ２）前記凹状部に前記パイプ部材を挿入する工程と、
を含む、製造方法。 A manufacturing method according to any one of claims 5 to 7,
The step (b)
(B1) a step of preparing a connection member main body having a concave portion for fitting a terminal of the spark plug, and a pipe member;
(B2) inserting the pipe member into the concave portion;
Manufacturing method. - 請求項５ないし請求項８のいずれかに記載の製造方法は、さらに、
（ｅ）前記キャップ本体の前記第１の空洞部に、プラグコードを接続するためのコード接続部材を固定する工程を備える、製造方法。 The manufacturing method according to any one of claims 5 to 8,
(E) A manufacturing method comprising a step of fixing a cord connecting member for connecting a plug cord to the first cavity of the cap body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI1007965A BRPI1007965A2 (en) | 2009-02-23 | 2010-02-23 | candle cap and method for making the candle cap |
| CN2010800088667A CN102326307A (en) | 2009-02-23 | 2010-02-23 | Plug cap and method for producing plug cap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009039215A JP2010198766A (en) | 2009-02-23 | 2009-02-23 | Plug cap, and method of manufacturing the same |
| JP2009-039215 | 2009-02-23 |
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| WO2010095748A1 true WO2010095748A1 (en) | 2010-08-26 |
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| PCT/JP2010/052744 WO2010095748A1 (en) | 2009-02-23 | 2010-02-23 | Plug cap and method for producing a plug cap |
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| JP (1) | JP2010198766A (en) |
| CN (1) | CN102326307A (en) |
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| WO (1) | WO2010095748A1 (en) |
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| CN104895890A (en) * | 2015-05-22 | 2015-09-09 | 重庆从仁机电有限公司 | Injection type self-tapping screw for spark plug cap |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2012221669A (en) * | 2011-04-07 | 2012-11-12 | Ngk Spark Plug Co Ltd | Plug cap |
| JP5650678B2 (en) * | 2012-03-12 | 2015-01-07 | 日本特殊陶業株式会社 | Plug connector |
| CN104205534B (en) * | 2012-03-12 | 2016-08-31 | 日本特殊陶业株式会社 | Plug connection has |
| JP5715653B2 (en) * | 2012-03-12 | 2015-05-13 | 日本特殊陶業株式会社 | Plug connector |
| CN103887712B (en) * | 2013-09-22 | 2016-04-13 | 重庆力华科技有限责任公司 | electromagnetic shielding material and spark plug cap |
| CN104240874A (en) * | 2014-08-22 | 2014-12-24 | 重庆从仁机电有限公司 | Ceramic resistor of spark plug cap |
| JP6375882B2 (en) * | 2014-11-11 | 2018-08-22 | 株式会社デンソー | Ignition coil for internal combustion engine |
| JP6537445B2 (en) * | 2015-11-26 | 2019-07-03 | 日立オートモティブシステムズ阪神株式会社 | Ignition coil for internal combustion engine |
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| JP2004146126A (en) * | 2002-10-22 | 2004-05-20 | Ngk Spark Plug Co Ltd | Plug cap and manufacturing method of the same |
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| JP4028720B2 (en) * | 2001-11-30 | 2007-12-26 | 日本特殊陶業株式会社 | Ignition device for internal combustion engine |
| CN2907004Y (en) * | 2006-05-26 | 2007-05-30 | 李从仁 | Spark plug cap for motorcycle |
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- 2009-02-23 JP JP2009039215A patent/JP2010198766A/en active Pending
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- 2010-02-23 BR BRPI1007965A patent/BRPI1007965A2/en not_active Application Discontinuation
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| JP2004146126A (en) * | 2002-10-22 | 2004-05-20 | Ngk Spark Plug Co Ltd | Plug cap and manufacturing method of the same |
| JP2007188959A (en) * | 2006-01-11 | 2007-07-26 | Denso Corp | Ignition coil |
| JP2007187104A (en) * | 2006-01-13 | 2007-07-26 | Hitachi Ltd | Ignition coil device for internal combustion engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104895890A (en) * | 2015-05-22 | 2015-09-09 | 重庆从仁机电有限公司 | Injection type self-tapping screw for spark plug cap |
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| BRPI1007965A2 (en) | 2016-02-23 |
| JP2010198766A (en) | 2010-09-09 |
| CN102326307A (en) | 2012-01-18 |
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