JPS63246593A - Manufacture of fuel pipe for automobile - Google Patents

Manufacture of fuel pipe for automobile

Info

Publication number
JPS63246593A
JPS63246593A JP62081774A JP8177487A JPS63246593A JP S63246593 A JPS63246593 A JP S63246593A JP 62081774 A JP62081774 A JP 62081774A JP 8177487 A JP8177487 A JP 8177487A JP S63246593 A JPS63246593 A JP S63246593A
Authority
JP
Japan
Prior art keywords
fuel pipe
main body
fuel
peripheral wall
hole
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
JP62081774A
Other languages
Japanese (ja)
Inventor
鋤本 己信
有馬 治雄
俊幸 山田
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.)
Altemira Co Ltd
Original Assignee
Showa Aluminum Corp
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 Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP62081774A priority Critical patent/JPS63246593A/en
Priority to DE19873782861 priority patent/DE3782861T2/en
Priority to EP87109080A priority patent/EP0251181B1/en
Priority to US07/066,505 priority patent/US4809743A/en
Priority to KR1019870006517A priority patent/KR910004913B1/en
Priority to CA 540663 priority patent/CA1286934C/en
Priority to MX708987A priority patent/MX170916B/en
Priority to CN87104451A priority patent/CN1024707C/en
Publication of JPS63246593A publication Critical patent/JPS63246593A/en
Pending legal-status Critical Current

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  • Fuel-Injection Apparatus (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、自動車、とくに電子制御式燃料噴射装置を
装備した自動車の燃料パイプを製造する方法に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The invention relates to a method for manufacturing fuel pipes for motor vehicles, in particular motor vehicles equipped with electronically controlled fuel injection systems.

従来の技術とその問題点 第8図および第9図は、従来の方法により製造された燃
料バイブを示している。この燃料バイブは、燃料パイプ
本体(91)と、これの長さ方向複数位置に設けられた
短筒状分岐パイプ接続部材(92)とを備えている。従
来の製造方法では、燃料パイプ本体(91)周壁に孔(
93)をあけ、その孔(93)の周囲に同接続部材(9
2)を溶接またはろう付により接合するようにしている
が、燃料パイプ本体(91)とは別個に同接続部材(9
2)を製造しこれを接合する必要があるので、製造が面
倒であるという問題点があった。
Prior Art and Its Problems Figures 8 and 9 show a fuel vibrator manufactured by a conventional method. This fuel vibrator includes a fuel pipe main body (91) and short cylindrical branch pipe connecting members (92) provided at a plurality of positions in the longitudinal direction of the fuel pipe main body (91). In the conventional manufacturing method, holes (
93) and insert the same connecting member (93) around the hole (93).
2) are connected by welding or brazing, but the connecting member (91) is connected separately from the fuel pipe main body (91).
Since it is necessary to manufacture 2) and join them, there is a problem that manufacturing is troublesome.

この発明の目的は、上記問題点を解決した自動車用燃料
パイプの製造方法を提供することにある。
An object of the present invention is to provide a method for manufacturing an automobile fuel pipe that solves the above-mentioned problems.

問題点を解決するための手段 この発明による自動車用燃料パイプの製造方法は、燃料
パイプ本体周壁の分岐パイプが接続されるべき部分に、
頂壁および周壁を有する断面逆U字状膨出部を形成し、
頂壁の中央部に孔をあけ、頂壁の孔周囲の部分を周壁と
面一となるように立上がらせて膨出部を分岐パイプ接続
用筒状部とするものである。
Means for Solving the Problems The method of manufacturing a fuel pipe for an automobile according to the present invention includes: a portion of the peripheral wall of the fuel pipe main body to which a branch pipe is to be connected;
forming an inverted U-shaped bulge in cross section having a top wall and a peripheral wall;
A hole is made in the center of the top wall, and the portion of the top wall around the hole is made to stand up flush with the peripheral wall, so that the bulging portion serves as a cylindrical portion for connecting the branch pipe.

実  施  例 この発明の実施例を図面を参照してつぎに説明する。Example Embodiments of the invention will now be described with reference to the drawings.

第1図から第3図は、自動車用燃料パイプの全体を示す
。ここで、以下の説明において、前後とは、第1図を基
準として、その右方を前、これと反対側を前といい、左
右とは後に向っていうものとし、上下とは、第1図およ
び第2図を基準としてその上下を上下というものとする
1 to 3 show the entirety of an automobile fuel pipe. Here, in the following explanation, front and back refers to the right side of FIG. 1 as a reference, the opposite side is the front, left and right refers to the rear, and up and down refers to the right side of FIG. 1. With reference to FIG. 2, the upper and lower sides are referred to as upper and lower.

同燃料パイプは、送り側燃料パイプ本体(11)および
戻り側燃料パイプ本体(12)を備えている。
The fuel pipe includes a sending fuel pipe main body (11) and a return fuel pipe main body (12).

送り側燃料パイプ本体(11)は、平面視略U字状をな
し、その一端は前を向いていてこれが入口端(21)と
なされ、その他端は入口端(21)の左斜め後方にあっ
て前を向いていてこれが出口端(22)となされている
。同人口端(21)には拡管部(23)が設けられてい
る。送り側燃料パイプ本体(11)の入口端(21)の
やや後方の位置より、その屈曲部(25)のやや前方の
位置にかけて、第1〜第3分岐バイブ接続用筒状部(3
1)〜(33)が順次形成されている。さらに、同パイ
プ(11)の第1筒状部(31)と第2筒状部(32)
の間には略縦長方形板状前側取付ブラケット(41)の
上部が接合されるとともに、第2筒状部(32)と第3
筒状部(33)の間には前側取付ブラケット(41)と
ほぼ同形状の後側取付ブラケット(42)が接合されて
いる。
The sending side fuel pipe main body (11) has a substantially U-shape in plan view, and one end thereof faces forward and serves as an inlet end (21), and the other end is located diagonally to the rear left of the inlet end (21). This is the outlet end (22). A tube expansion section (23) is provided at the artificial end (21). The first to third branch vibe connecting cylindrical parts (3
1) to (33) are formed in sequence. Furthermore, the first cylindrical part (31) and the second cylindrical part (32) of the pipe (11)
The upper part of the approximately vertical rectangular plate-shaped front mounting bracket (41) is joined between the second cylindrical part (32) and the third cylindrical part (32).
A rear mounting bracket (42) having substantially the same shape as the front mounting bracket (41) is joined between the cylindrical portions (33).

戻り側燃料パイプ本体(12)は、平面視略U字状をな
し、その一端は送り側燃料パイプ本体(11)の入口端
(21)のやや上方にあって前を向いていてこれが出口
端(51)となされ、その他端は、送り側燃料パイプ本
体(11)の出口端(22)のやや上、方にあって同出
口端(22)と並んでいてこれが入口端(52)となさ
れている。前側取付ブラケット(41)−には、前から
見て略横向き台形状のブラケット(43)が一定的に設
けられ、これには図示しない燃料供給量調整器が取付け
られる。そして、同ブラケット(43)には送り側燃料
パイプ本体(11)の出口端(22)および戻り側燃料
パイプ本体(12)の入口端(52)が接合されている
The return side fuel pipe main body (12) has a substantially U-shape in plan view, and one end thereof is located slightly above the inlet end (21) of the sending side fuel pipe main body (11) and faces forward, and this is the outlet end. (51), and the other end is located slightly above the outlet end (22) of the sending fuel pipe main body (11) and is lined up with the same outlet end (22), and this is the inlet end (52). ing. A substantially horizontal trapezoidal bracket (43) when viewed from the front is constantly provided on the front mounting bracket (41), and a fuel supply amount regulator (not shown) is attached to this bracket. The outlet end (22) of the sending fuel pipe main body (11) and the inlet end (52) of the return fuel pipe main body (12) are joined to the bracket (43).

第4図および第5図は、送り側燃料バイブ本体(11)
の製造方法を示す。
Figures 4 and 5 show the main body of the fuel vibrator (11) on the sending side.
The manufacturing method is shown below.

第4図は、3つの筒状部(31)〜(33)のうちの第
1筒状部(31)の成形方法を示している。第4図(イ
)に示す直管であった同パイプ本体(11)周壁の分岐
パイプが接続される部分に、第4図(ロ)に示すように
、バルジ加工により膨出部(B1)を形成する。膨出部
(81)は、底壁(62)および周壁(63)を有する
断面U字状をなす。つぎに、第4図(ハ)で示すように
、膨出部(61)の底壁(62)中央部に孔(64)を
あける。ついで、第4図(ニ)で示すように、バーリン
グ加工により底壁(62)の孔(64)周囲の部分を周
壁(63)と面一となるように外方に曲げて膨出部(6
1)を分岐パイプ接続用筒状部(31)とする。そして
、最後に、第4図(ホ)に示すように、筒状部(31)
の先端を拡管するとともに、同端部にフレア加工を施し
てフランジ(65)を突出させる。このようにして、第
5図(イ)に示すように、直管状のパイプ(11)に3
つの筒状部(31)〜(33)が形成されると、第5図
(ロ)に示すように、それをU字状に折曲げて屈曲部(
25)を形成し、ついで第5図(ハ)で示すように、そ
の一端に拡管部(24)を形成する。
FIG. 4 shows a method of forming the first cylindrical part (31) among the three cylindrical parts (31) to (33). As shown in Fig. 4 (b), a bulging part (B1) is formed on the peripheral wall of the pipe main body (11), which was a straight pipe as shown in Fig. 4 (a), at the part where the branch pipe is connected. form. The bulge (81) has a U-shaped cross section and has a bottom wall (62) and a peripheral wall (63). Next, as shown in FIG. 4(c), a hole (64) is made in the center of the bottom wall (62) of the bulge (61). Next, as shown in FIG. 4(D), the portion of the bottom wall (62) around the hole (64) is bent outward by burring so as to be flush with the peripheral wall (63) to form a bulge ( 6
1) is a cylindrical part (31) for connecting a branch pipe. Finally, as shown in FIG. 4 (e), the cylindrical part (31)
The tip of the tube is expanded, and the same end is flared to make the flange (65) protrude. In this way, as shown in FIG. 5(a), three
Once the two cylindrical parts (31) to (33) are formed, they are bent into a U-shape as shown in FIG.
25), and then, as shown in FIG. 5(C), an enlarged tube portion (24) is formed at one end thereof.

第6図は、送り側燃料パイプ本体(11)と後側取付ブ
ラケット(42)の接合状態を示している。
FIG. 6 shows a state in which the sending fuel pipe main body (11) and the rear mounting bracket (42) are joined.

その接合は、燃料パイプ(11)に同取付ブラケット(
42)をプロジェクション溶接することによっている。
Its connection is to the fuel pipe (11) with the same mounting bracket (
42) by projection welding.

すなわち、取付ブラケット(42)の上部には燃料パイ
プ(11)の外面に合致する円弧状部(71)が形成さ
れるとともに、円弧状部(71)の内面に複数の突起(
72)が形成され、これらの突起(72)の部分が溶接
部となっている。
That is, an arcuate portion (71) that matches the outer surface of the fuel pipe (11) is formed on the upper part of the mounting bracket (42), and a plurality of protrusions (
72) are formed, and the portions of these protrusions (72) are welded parts.

第7図は、両燃料パイプ本体(11)(12)と燃料供
給量調整器取付ブラケット(43)の接合状態を示して
いる。同取付ブラケット(43)には2つの孔(81)
 <82)が並んであけられ、2つの孔(81)(82
)の周壁には、ねじ山のような螺旋状の突出部(ga)
 (84)が形成されている。そして、2つの孔(83
) (84)には送り側燃料パイプ本体(11)の出口
端(22)および戻り側燃料パイプ本体(12)の入口
端(52)がそれぞれ挿入され、同出口端(22)およ
び入口端(52)に拡管部(85) (8e)がそれぞ
れ形成されてこれらは2つの孔(81) (82)周壁
の突出部(83)(84)にそれぞれ圧接されている。
FIG. 7 shows the state in which the two fuel pipe bodies (11, 12) and the fuel supply amount regulator mounting bracket (43) are joined. The mounting bracket (43) has two holes (81).
<82) are drilled side by side, and two holes (81) (82
) has a spiral protrusion like a thread (ga) on the peripheral wall of the
(84) is formed. And two holes (83
) The outlet end (22) of the sending fuel pipe main body (11) and the inlet end (52) of the return fuel pipe main body (12) are inserted into (84), respectively, and the outlet end (22) and the inlet end ( Expanded tube portions (85) and (8e) are formed in each of the holes (81) and (82), respectively, and these are pressed into contact with protrusions (83) and (84) of the surrounding wall of the two holes (81) and (82), respectively.

上記において、送り側および戻り側燃料パイプ本体(1
1) (12)は、いずれも一本のパイプにより形成さ
れていて、例えば二本のパイプを接合するような接合部
が無い。そのために、パイプ本体(11)(12)内を
流れる燃料の抵抗は極めてスムーズとなっており、また
同パイプ本体(11)(12)は軽量なものとなってい
る。
In the above, the sending and return side fuel pipe bodies (1
1) (12) are all formed by a single pipe, and there is no joint for joining two pipes, for example. Therefore, the resistance of the fuel flowing inside the pipe bodies (11, 12) is extremely smooth, and the pipe bodies (11, 12) are lightweight.

発明の効果 この発明によれば、燃料パイプ本体の周壁を変形させる
ことによりこれと一体的に分岐パイプ接続用筒状部を形
成するようにしているから、従来のものと比較して、製
造工程数が少なくなり、製造が容易になる。
Effects of the Invention According to the present invention, the peripheral wall of the fuel pipe main body is deformed so that the branch pipe connecting cylindrical part is formed integrally with the peripheral wall of the fuel pipe main body, so that the manufacturing process is reduced compared to the conventional one. The number is reduced and manufacturing becomes easier.

さらに、筒状部を形成する際に、周壁に膨出部を形成し
、膨出部の底壁中央部に孔をあけ、その後に、その孔の
周囲の部分を外方に曲げるようにしているから、形成さ
れた筒状部の肉厚が均一で、そこにクラックが入ること
がない。
Furthermore, when forming the cylindrical part, a bulging part is formed in the peripheral wall, a hole is made in the center of the bottom wall of the bulging part, and the part around the hole is then bent outward. Because of this, the wall thickness of the formed cylindrical part is uniform and no cracks will form there.

これを、例えば、膨出部を形成することなく、孔をあけ
てその周囲を曲げるようにすると、形成された筒状部の
肉厚が不均一で、その先端にクラックが入ることがある
。・
For example, if a hole is made and the circumference is bent without forming a bulge, the wall thickness of the cylindrical portion formed will be uneven, and a crack may appear at the tip.・

【図面の簡単な説明】[Brief explanation of drawings]

第1図から第7図はこの発明の実施例を示し、第1図は
燃料パイプ全体の側面図、第2図は部分断面を含む正面
図、第3図は部分断面を含む同平面図、第4図および第
5図はそれぞれ燃料パイプの製造工程図、第6図は第1
図のVl−VI線にそう拡大断面図、第7図は第2図の
■−■線にそう断面図、第8図は従来の燃料パイプの側
面図、第9図は第8図の一部を拡大して示す断面図であ
る。 (11) (12)・・・燃料パイプ、(22)・・・
出口端、(31)・・・筒状部、(42) (43)・
・・取付ブラケット、(52)・・・人口端、(et)
・・・膨出部、(62)・・・底壁、(63)・・・周
壁、(64)・・・孔、(81)(82)・・・孔、(
83) (84)・・・突出部、(85) (86)・
・・拡管部。 第6図     第7図
1 to 7 show an embodiment of the present invention, in which FIG. 1 is a side view of the entire fuel pipe, FIG. 2 is a front view including a partial cross section, and FIG. 3 is a plan view of the same including a partial cross section. Figures 4 and 5 are manufacturing process diagrams of the fuel pipe, respectively, and Figure 6 is the manufacturing process diagram of the fuel pipe.
Figure 7 is an enlarged cross-sectional view taken along the line Vl-VI in Figure 2, Figure 8 is a side view of a conventional fuel pipe, and Figure 9 is the same view as Figure 8. FIG. (11) (12)...Fuel pipe, (22)...
Outlet end, (31)...Cylindrical part, (42) (43)...
...Mounting bracket, (52)...Population end, (et)
... bulge, (62) ... bottom wall, (63) ... peripheral wall, (64) ... hole, (81) (82) ... hole, (
83) (84)...Protrusion, (85) (86)
... Expansion section. Figure 6 Figure 7

Claims (1)

【特許請求の範囲】[Claims] 燃料パイプ本体(11)周壁の分岐パイプが接続される
べき部分に、底壁(62)および周壁(63)を有する
断面U字状膨出部(61)を形成し、底壁(62)の中
央部に孔(64)をあけ、底壁(62)の孔(64)周
囲の部分を周壁(63)と面一となるように外方に曲げ
て膨出部(61)を分岐パイプ接続用筒状部(31)と
する、自動車用燃料パイプの製造方法。
A bulge portion (61) having a U-shaped cross section having a bottom wall (62) and a peripheral wall (63) is formed in the portion of the peripheral wall of the fuel pipe main body (11) to which the branch pipe is to be connected, and Drill a hole (64) in the center, bend the part of the bottom wall (62) around the hole (64) outward so that it is flush with the peripheral wall (63), and connect the bulge (61) to a branch pipe. A method for manufacturing an automobile fuel pipe, which is a cylindrical part (31).
JP62081774A 1986-06-27 1987-04-01 Manufacture of fuel pipe for automobile Pending JPS63246593A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP62081774A JPS63246593A (en) 1987-04-01 1987-04-01 Manufacture of fuel pipe for automobile
DE19873782861 DE3782861T2 (en) 1986-06-27 1987-06-24 FUEL LINE FOR MOTOR VEHICLES.
EP87109080A EP0251181B1 (en) 1986-06-27 1987-06-24 Fuel pipe device for motor vehicles
US07/066,505 US4809743A (en) 1986-06-27 1987-06-26 Fuel pipe device for motor vehicles and process for producing same
KR1019870006517A KR910004913B1 (en) 1986-06-27 1987-06-26 Fuel pipe device for motor vehicle and process for producing same
CA 540663 CA1286934C (en) 1986-06-27 1987-06-26 Fuel pipe device for motor vehicles and process for producing same
MX708987A MX170916B (en) 1986-06-27 1987-06-26 DEVICE FOR FUEL INLET PIPE FOR MOTOR VEHICLES AND PROCEDURE FOR PRODUCING THE SAME
CN87104451A CN1024707C (en) 1986-06-27 1987-06-27 Fuel oil pipeline device of bus and mfg. method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62081774A JPS63246593A (en) 1987-04-01 1987-04-01 Manufacture of fuel pipe for automobile

Publications (1)

Publication Number Publication Date
JPS63246593A true JPS63246593A (en) 1988-10-13

Family

ID=13755823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62081774A Pending JPS63246593A (en) 1986-06-27 1987-04-01 Manufacture of fuel pipe for automobile

Country Status (1)

Country Link
JP (1) JPS63246593A (en)

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