JP2003129915A - Terminal fixing structure of delivery pipe - Google Patents

Terminal fixing structure of delivery pipe

Info

Publication number
JP2003129915A
JP2003129915A JP2001365354A JP2001365354A JP2003129915A JP 2003129915 A JP2003129915 A JP 2003129915A JP 2001365354 A JP2001365354 A JP 2001365354A JP 2001365354 A JP2001365354 A JP 2001365354A JP 2003129915 A JP2003129915 A JP 2003129915A
Authority
JP
Japan
Prior art keywords
terminal
projection
delivery pipe
injector
fixing structure
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.)
Pending
Application number
JP2001365354A
Other languages
Japanese (ja)
Inventor
Yukinori Kato
幸範 加藤
Hideaki Nishibe
秀明 西部
Hikari Kikuta
光 菊田
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.)
Aisan Industry Co Ltd
Original Assignee
Aisan Industry 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 Aisan Industry Co Ltd filed Critical Aisan Industry Co Ltd
Priority to JP2001365354A priority Critical patent/JP2003129915A/en
Priority to ITMI20022207 priority patent/ITMI20022207A1/en
Priority to TW91124363A priority patent/TW544489B/en
Priority to CN 02154768 priority patent/CN1414237A/en
Publication of JP2003129915A publication Critical patent/JP2003129915A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fuel-Injection Apparatus (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a terminal fixing structure capable of surely preventing detachment of a terminal and making the structure compact. SOLUTION: A projection 3h engaged with an engagement hole 6a formed to a terminal 6 is arranged on one face of terminal insertion holes 3f, 3g for inserting the terminal 6, and an induction wall 3i for inducing the terminal 6 toward the projection 3h is installed on the opposed face of the projection 3h. Therefore, the engagement hole 6a formed to the terminal 6 and the projection 3h are surely engaged with each other, to prevent detachment of the terminal 6. The periphery of the terminal is made compact, and a delivery pipe can be miniaturized.

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は二輪車の燃料噴射装
置のデリバリパイプに関し、詳しくは、デリバリパイプ
に一体的に装着されるターミナルの固定構造に関するも
のである。 【0002】 【従来の技術】近時、二輪車における排気ガス規制の強
化により、二輪車の燃料噴射装置の採用が増加している
のにともない、燃料噴射装置の小型化が必要不可欠の要
因となってきている。特に燃料をインジェクタに供給す
るとともに、インジェクタをインテークマニホールドに
固定するためのデリバリパイプをコンパクトに収めるこ
とが重要である。従来、ターミナルの固定構造について
は、ターミナルにワイヤハーネスをかしめ付け、防水用
のシール部材で覆った状態で図2に示すデリバリパイプ
22のハウジング23に設けられたターミナル挿入孔2
3aに挿入し、抜け防止としてハウジング23側に設け
られたスナップ係合部23bの突起部23cに不図示の
ターミナル側に設けられた係合孔を係合させて固定する
方法が一般的であった。 【0003】 【発明が解決しようとする課題】しかしながら、図2に
示すように、ハウジング23側をスナップ状に形成する
ためスナップ係合部23bの内側に空間部23dを設け
てスナップ係合部23bの弾性変形を許容させる必要が
あり、その分ターミナル挿入部の容積が余分に必要とな
り、コンパクト化を阻害する要因となっていた。そこで
本発明は、ターミナルの抜けを確実に防止するとともに
コンパクト化が可能なターミナル固定構造を提供するこ
とを課題とするものである。 【0004】 【課題を解決するための手段】前記課題の解決を目的と
してなされた請求項1の発明は、インジェクタをインテ
ークマニホールドに固定させるとともに該インジェクタ
に燃料を供給する合成樹脂製のターミナル一体型のデリ
バリパイプにおいて、前記ターミナルを挿入するための
ターミナル挿入孔の一方の面に、前記ターミナルに設け
られた係合孔に係合する突起部を設け、該突起部の対向
面に前記ターミナルを前記突起部側に誘導するための誘
導壁を設けたことを特徴とする。 【0005】 【発明の実施の形態】本発明の望ましい実施形態につい
て図面を参照して説明する。図1は本発明の一実施形態
に係るデリバリパイプサブアッセンブリの縦断面図、右
側面図、ターミナル挿入部の部分拡大断面図である。図
1において、デリバリパイプサブアッセンブリ1を構成
するデリバリパイプ2のハウジング3の中央部には燃料
通路3aが穿設され、燃料通路3aの一方にはインジェ
クタ4の挿入穴3bが形成され、他方はパイプ部3cに
連通して燃料の入口部を形成している。ハウジング3に
はフランジ部3dが一体的に形成されフランジ部3dに
は取付孔3eが穿設されており、不図示のネジによりデ
リバリパイプサブアッセンブリ1が不図示のインテーク
マニホールドに固定されるよう構成されている。 【0006】また、ハウジング3には挿入穴3bの軸心
に平行してターミナル挿入部を構成する2つのターミナ
ル挿入孔3f、3gが穿設されている。ターミナル挿入
孔3f、3gの一方の面には突起部3hが形成され対抗
する面には誘導面3iが形成されている。ターミナル挿
入孔3f、3gには電源コード5が固定されたターミナ
ル6がシール部材7とともに挿入され、ターミナル6の
係合孔6aが突起部3hに係合して抜けないよう固定さ
れている。シール部材7は電源コード5およびターミナ
ル挿入孔3f、3gの何れとも気密を保持して圧接し防
水効果を維持している。 【0007】ハウジング3の挿入穴3bにはOリング8
を介してインジェクタ4が組みつけられている。インジ
ェクタ4の2つの電源端子4aはハウジング3に固定さ
れた2つのターミナル6にそれぞれ接触するよう構成さ
れている。デリバリパイプサブアッセンブリ1が不図示
のインテークマニホールドに組み付けられると、インジ
ェクタ4に装着されたOリング9によりインジェクタ4
と不図示のインテークマニホールドとの気密が保持され
る。 【0008】次に、本実施形態の作用について説明す
る。電源コード5およびシール部材7が固定されたター
ミナル6がターミナル挿入孔3f、3gに挿入されると
き、ターミナル6の先端部は誘導壁3iに沿って移動す
る。ターミナル6がターミナル挿入孔3f、3gの奥ま
で挿入されると、ターミナル6は誘導壁3iにより突起
部3h側に誘導されるため、係合孔6aと突起部3hと
が確実に係合しターミナル6が抜けることがない。ま
た、従来のスナップ部23b(図2参照)の内側の空間
部23d(図2参照)が不要となるため、ターミナル挿
入部の容積が少なくてすみ、デリバリパイプ2のコンパ
クト化が図られる。 【0009】デリバリパイプ2のパイプ部3cに圧送さ
れた燃料は、インジェクタ4の中央部に設けられた燃料
通路4cを経て噴射室4dに到達する。電源コード5、
タイミナル6、電源端子4aからインジェクタ4への通
電により弁4eが開き、噴射口4fから燃料が不図示の
インテークマニホールド内に噴射される。なお、パイプ
部3cの方向については、部品の選択により点線で示す
方向等に任意に設定が可能であり、あらゆる方向からの
燃料の導入が可能となる。 【000】 【発明の効果】本発明は上述のように構成されているの
で以下の効果を奏する。すなわち、ターミナルを挿入す
るためのターミナル挿入孔の一方の面に、ターミナルに
設けられた係合孔に係合する突起部を設け、突起部の対
向面にターミナルを突起部側に誘導するための誘導壁を
設けたので、ターミナルに設けられた係合孔と突起部と
が確実に係合しターミナルが抜けることがない。また、
ターミナル周りのコンパクト化が図られ、デリバリパイ
プの小型化が可能となる。
Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a delivery pipe for a fuel injection device for a motorcycle, and more particularly to a terminal fixing structure integrally mounted on the delivery pipe. . 2. Description of the Related Art In recent years, as the use of fuel injection devices for motorcycles has increased due to the tightening of exhaust gas regulations for motorcycles, miniaturization of fuel injection devices has become an indispensable factor. ing. In particular, it is important to supply fuel to the injector and to compactly house a delivery pipe for fixing the injector to the intake manifold. Conventionally, regarding a terminal fixing structure, a terminal insertion hole 2 provided in a housing 23 of a delivery pipe 22 shown in FIG. 2 in a state where a wire harness is crimped to the terminal and covered with a sealing member for waterproofing.
3a, and a locking method is employed in which a projection 23c of a snap engagement portion 23b provided on the housing 23 side is engaged with an engagement hole provided on a terminal side (not shown) to prevent slipping. Was. However, as shown in FIG. 2, a space 23d is provided inside the snap engagement portion 23b so as to form the housing 23 into a snap shape, so that the snap engagement portion 23b is formed. Must be allowed to be elastically deformed, which requires an extra volume for the terminal insertion portion, which is a factor that hinders compactness. Therefore, an object of the present invention is to provide a terminal fixing structure capable of reliably preventing the terminal from coming off and being compact. SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a first aspect of the present invention is a synthetic resin terminal-integrated type in which an injector is fixed to an intake manifold and fuel is supplied to the injector. In the delivery pipe, a projection is provided on one surface of a terminal insertion hole for inserting the terminal, the projection being engaged with an engagement hole provided in the terminal, and the terminal is provided on a surface facing the projection. It is characterized in that a guide wall for guiding to the projection side is provided. Preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional view, a right side view, and a partially enlarged sectional view of a terminal insertion portion of a delivery pipe subassembly according to an embodiment of the present invention. In FIG. 1, a fuel passage 3a is formed in a central portion of a housing 3 of a delivery pipe 2 constituting the delivery pipe subassembly 1, and an insertion hole 3b of an injector 4 is formed in one of the fuel passages 3a, and the other is formed. A fuel inlet is formed in communication with the pipe 3c. A flange 3d is formed integrally with the housing 3, and a mounting hole 3e is formed in the flange 3d. The delivery pipe subassembly 1 is fixed to an intake manifold (not shown) by screws (not shown). Have been. The housing 3 is provided with two terminal insertion holes 3f and 3g which constitute a terminal insertion portion in parallel with the axis of the insertion hole 3b. A projection 3h is formed on one surface of the terminal insertion holes 3f and 3g, and a guide surface 3i is formed on the opposite surface. The terminal 6 to which the power cord 5 is fixed is inserted into the terminal insertion holes 3f and 3g together with the seal member 7, and the engagement hole 6a of the terminal 6 is fixed to the projection 3h so as not to come off. The sealing member 7 is pressed against the power supply cord 5 and the terminal insertion holes 3f and 3g while maintaining airtightness to maintain a waterproof effect. An O-ring 8 is provided in the insertion hole 3b of the housing 3.
The injector 4 is mounted via the. The two power terminals 4a of the injector 4 are configured to contact the two terminals 6 fixed to the housing 3, respectively. When the delivery pipe sub-assembly 1 is assembled to an intake manifold (not shown), the injector 4 is mounted by an O-ring 9 mounted on the injector 4.
And the intake manifold (not shown) are kept airtight. Next, the operation of the present embodiment will be described. When the terminal 6 to which the power cord 5 and the sealing member 7 are fixed is inserted into the terminal insertion holes 3f and 3g, the tip of the terminal 6 moves along the guide wall 3i. When the terminal 6 is inserted into the terminal insertion holes 3f and 3g, the terminal 6 is guided toward the protrusion 3h by the guide wall 3i. 6 does not fall out. Further, since the space 23d (see FIG. 2) inside the conventional snap portion 23b (see FIG. 2) is not required, the volume of the terminal insertion portion can be reduced, and the delivery pipe 2 can be made compact. [0009] The fuel pumped to the pipe section 3c of the delivery pipe 2 reaches the injection chamber 4d via a fuel passage 4c provided at the center of the injector 4. Power cord 5,
When the injector 6 is energized from the terminal 6 and the power supply terminal 4a, the valve 4e is opened, and fuel is injected from an injection port 4f into an intake manifold (not shown). The direction of the pipe portion 3c can be arbitrarily set to a direction indicated by a dotted line or the like by selecting parts, and fuel can be introduced from all directions. The present invention has the following effects because it is configured as described above. That is, on one surface of the terminal insertion hole for inserting the terminal, a projection is provided for engaging with the engagement hole provided on the terminal, and the terminal is guided to the projection side on the opposite surface of the projection. Since the guide wall is provided, the engagement hole provided in the terminal and the projection are securely engaged, and the terminal does not come off. Also,
The terminal area can be made compact, and the size of the delivery pipe can be reduced.

【図面の簡単な説明】 【図1】図1(a)は本発明の一実施形態に係るデリバ
リパイプサブアッセンブリの縦断面図である。図1
(b)は右側面図である。図1(c)はターミナル挿入
部の部分拡大断面図である。 【図2】従来技術を示すターミナル挿入部の部分拡大断
面図である。 【符号の説明】 1 デリバリパイプサブアッセンブリ 2 デリバリパイプ 3f ターミナル挿入孔 3g ターミナル挿入孔 3h 突起部 3i 誘導壁 4 インジェクタ 6 ターミナル 6a 係合孔
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (a) is a longitudinal sectional view of a delivery pipe sub-assembly according to one embodiment of the present invention. FIG.
(B) is a right side view. FIG. 1C is a partially enlarged sectional view of the terminal insertion portion. FIG. 2 is a partially enlarged cross-sectional view of a terminal insertion portion showing a conventional technique. [Description of Signs] 1 Delivery pipe subassembly 2 Delivery pipe 3f Terminal insertion hole 3g Terminal insertion hole 3h Projection 3i Guide wall 4 Injector 6 Terminal 6a Engagement hole

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 3G066 AA01 AD05 BA56 BA61 CB00 CD04 CE22 CE30    ────────────────────────────────────────────────── ─── Continuation of front page    F term (reference) 3G066 AA01 AD05 BA56 BA61 CB00                       CD04 CE22 CE30

Claims (1)

【特許請求の範囲】 【請求項1】 インジェクタをインテークマニホールド
に固定させるとともに該インジェクタに燃料を供給する
合成樹脂製のターミナル一体型のデリバリパイプにおい
て、前記ターミナルを挿入するためのターミナル挿入孔
の一方の面に、前記ターミナルに設けられた係合孔に係
合する突起部を設け、該突起部の対向面に前記ターミナ
ルを前記突起部側に誘導するための誘導壁を設けたこと
を特徴とするデリバリパイプのターミナル固定構造。
Claims: 1. A synthetic resin terminal-integrated delivery pipe for fixing an injector to an intake manifold and supplying fuel to the injector, one of terminal insertion holes for inserting the terminal. Surface, a projection is provided for engaging with an engagement hole provided in the terminal, and a guide wall for guiding the terminal toward the projection is provided on a surface facing the projection. Terminal fixing structure of the delivery pipe.
JP2001365354A 2001-10-25 2001-10-25 Terminal fixing structure of delivery pipe Pending JP2003129915A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001365354A JP2003129915A (en) 2001-10-25 2001-10-25 Terminal fixing structure of delivery pipe
ITMI20022207 ITMI20022207A1 (en) 2001-10-25 2002-10-17 DELIVERY TERMINAL ELEMENT FIXING STRUCTURE.
TW91124363A TW544489B (en) 2001-10-25 2002-10-22 Terminal member securing structure of delivery pipe
CN 02154768 CN1414237A (en) 2001-10-25 2002-10-25 Fastening structure of pipeline connection component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001365354A JP2003129915A (en) 2001-10-25 2001-10-25 Terminal fixing structure of delivery pipe

Publications (1)

Publication Number Publication Date
JP2003129915A true JP2003129915A (en) 2003-05-08

Family

ID=19175388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001365354A Pending JP2003129915A (en) 2001-10-25 2001-10-25 Terminal fixing structure of delivery pipe

Country Status (4)

Country Link
JP (1) JP2003129915A (en)
CN (1) CN1414237A (en)
IT (1) ITMI20022207A1 (en)
TW (1) TW544489B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7320301B1 (en) * 2007-04-04 2008-01-22 Gm Global Technology Operations, Inc. Clock and anchor pipe fitting and method
CN106089525B (en) * 2016-08-23 2018-08-07 力帆实业(集团)股份有限公司 Motorcycle with electronic fuel injection system single channel oil rail

Also Published As

Publication number Publication date
ITMI20022207A1 (en) 2003-04-26
TW544489B (en) 2003-08-01
CN1414237A (en) 2003-04-30

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