JPH0130293Y2 - - Google Patents
Info
- Publication number
- JPH0130293Y2 JPH0130293Y2 JP1981122565U JP12256581U JPH0130293Y2 JP H0130293 Y2 JPH0130293 Y2 JP H0130293Y2 JP 1981122565 U JP1981122565 U JP 1981122565U JP 12256581 U JP12256581 U JP 12256581U JP H0130293 Y2 JPH0130293 Y2 JP H0130293Y2
- Authority
- JP
- Japan
- Prior art keywords
- power steering
- steering device
- metal pipe
- pump
- piping 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 28
- 230000010349 pulsation Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案は自動車の動力舵取装置の配管構造の改
良に関するものである。[Detailed Description of the Invention] The present invention relates to an improvement in the piping structure of a power steering device for an automobile.
動力舵取装置を備えた自動車においては、油圧
ポンプの振動および油圧脈動がポンプの吐出口と
動力舵取装置の供給口とを接続する供給管を媒介
として動力舵取装置に伝えられ、その振動が車両
フレームおよびハンドル軸等に伝播して車室内に
いわゆるこもり音と称する振動音が発生する場合
がある。 In automobiles equipped with a power steering device, the vibrations and hydraulic pulsations of the hydraulic pump are transmitted to the power steering device through a supply pipe that connects the discharge port of the pump and the supply port of the power steering device, and the vibrations are transmitted to the power steering device. This may propagate to the vehicle frame, steering wheel shaft, etc., and generate vibrational noise called muffled noise in the vehicle interior.
本考案の目的はポンプの振動および油圧脈動を
吸収して動力舵取装置に伝達されないようにした
動力舵取装置の配管構造を提供するものである。 An object of the present invention is to provide a piping structure for a power steering device that absorbs pump vibrations and hydraulic pulsations and prevents them from being transmitted to the power steering device.
上記目的を達成するために、本考案の特徴は、
ポンプの吐出口と動力舵取装置の供給口とを、両
端にゴムホースを設けた金属パイプで接続した動
力舵取装置の配管構造において、前記金属パイプ
を略Ｕ字状に折曲げ、その略Ｕ字状の曲り部中央
を車体に固定し、かつ、その固定部から金属パイ
プ両端までの長さを互いに相違させた点にある。 In order to achieve the above purpose, the features of the present invention are as follows:
In the piping structure of the power steering device in which the discharge port of the pump and the supply port of the power steering device are connected by a metal pipe provided with a rubber hose at both ends, the metal pipe is bent into a substantially U-shape, and the approximately U-shape is bent. The center of the curved part is fixed to the vehicle body, and the lengths from the fixed part to both ends of the metal pipe are made different.
上記構成によれば、金属パイプの固定部が振動
に対する節とするので、ポンプの回転により発生
した振動は金属パイプの固定部で吸収され、動力
舵取装置への伝播が抑制される。また油圧脈動は
金属パイプの変形によつて吸収され、動力舵取装
置への伝播が低減される。特に、固定部から両端
までの金属パイプの長さが互いに相違しているた
め、油圧脈動中に複数種類の特定振動数があつて
も、その複数種類の特定振動数に合わせて、固定
部両側の金属パイプが別個に変形して、油圧脈動
中の複数の特定振動数が低減される。 According to the above configuration, since the fixed portion of the metal pipe serves as a node against vibration, vibrations generated by rotation of the pump are absorbed by the fixed portion of the metal pipe, and propagation to the power steering device is suppressed. Additionally, hydraulic pulsations are absorbed by the deformation of the metal pipe, reducing propagation to the power steering device. In particular, since the lengths of the metal pipes from the fixed part to both ends are different from each other, even if there are multiple types of specific vibration frequencies during hydraulic pulsation, both sides of the fixed part are The metal pipes are deformed separately to reduce specific frequencies during the hydraulic pulsations.
以下図に示す実施例を用いて本考案の詳細を説
明する。 The details of the present invention will be explained below using examples shown in the figures.
第１図は本考案の実施例を示す配管構造を備え
た動力舵取装置の構成図、第２図は第１図の一部
拡大図、第３図は第１図の要部拡大図である。１
は車両フレームであり、これに動力舵取装置２が
取付けられている。この動力舵取装置２に有する
入力軸３と操向ハンドルのハンドル軸４とをカツ
プリング結合すると共に、出力軸５にピツトマン
アーム６を結合している。そして、舵取操作力の
軽減作用を行なう作動油の供給は、ポンプ本体７
およびタンク８から成るポンプ９によつて行なう
ようになつており、このためにポンプ９と動力舵
取装置２とを油圧配管により接続している。その
配管構造は、動力舵取装置２の供給口と戻り口と
に一対の金属パイプ１３，１５が締付ナツト１６
で締付固定されている。この締付構造は戻り側の
金属パイプ１５側も同じであるが第２図の供給側
の金属パイプ１３側で説明すると、金属パイプ１
３の端部にフレア１７が形成され、供給口１９に
嵌着したユニオンシート１８のテーパ面に接合
し、締付ナツト１６の端面で前記フレア１７をユ
ニオンシート１８に押圧して結合されている。 Fig. 1 is a block diagram of a power steering device equipped with a piping structure showing an embodiment of the present invention, Fig. 2 is a partially enlarged view of Fig. 1, and Fig. 3 is an enlarged view of the main parts of Fig. 1. be. 1
is a vehicle frame, to which the power steering device 2 is attached. An input shaft 3 of the power steering device 2 and a handle shaft 4 of a steering handle are coupled together, and a pitman arm 6 is coupled to an output shaft 5. The supply of hydraulic oil that reduces the steering operation force is carried out by the pump body 7.
This is done by a pump 9 consisting of a tank 8 and a tank 8, and for this purpose the pump 9 and the power steering device 2 are connected by hydraulic piping. The piping structure is such that a pair of metal pipes 13 and 15 are connected to a supply port and a return port of the power steering device 2 by a tightening nut 16.
It is tightened and fixed. This tightening structure is the same on the metal pipe 15 side on the return side, but to explain it on the metal pipe 13 side on the supply side in FIG.
A flare 17 is formed at the end of 3, and is joined to the tapered surface of a union sheet 18 fitted into the supply port 19, and the flare 17 is pressed and joined to the union sheet 18 by the end surface of the tightening nut 16. .
一方、ポンプ９側のポンプ本体７とタンク８に
もそれぞれ金属パイプ１２，１４が設けられてお
り、この金属パイプ１２，１４と前記金属パイプ
１３，１５とをゴムホース１０，１０ａ，１０ｂ
で接続した構造となつている。 On the other hand, the pump main body 7 and tank 8 on the side of the pump 9 are also provided with metal pipes 12, 14, respectively, and these metal pipes 12, 14 and the metal pipes 13, 15 are connected to rubber hoses 10, 10a, 10b.
It has a connected structure.
本実施例は上記構成におけるポンプ本体７と動
力舵取装置２の供給口１９とを接続する高圧の供
給側の配管において、ゴムホース１０ａ，１０ｂ
の間に、略Ｕ字状の金属パイプ２０を配設したも
のである。また、２２，２３はゴムホース１０
ａ，１０ｂと、金属パイプ２０とを接続するエル
ボで、該エルボ２２，２３はその一端がかしめ結
合部２４、２５を介してゴムホース１０ａ，１０
ｂと結合され、かつその他端がユニオン結合部２
６，２７を介して金属パイプ２０と結合されてい
る。さらに、前記金属パイプ２０のＵ字状先端部
２０ａは、第４図に示す如く、ゴム２８を介在さ
せた状態でクランプ２９によつて車体に弾性的に
支持されている。なお、第３図に示すよう、前記
かしめ結合部２４，２５からＵ字状先端部２０ａ
までの長さ1，2は異なるよう形成されてお
り、該Ｕ字状先端部２０ａのＲ寸法とによつて、
ポンプ９と動力舵取装置２間の配管系の剛性を決
定している。 In this embodiment, rubber hoses 10a and 10b are used in the high-pressure supply side piping connecting the pump main body 7 and the supply port 19 of the power steering device 2 in the above configuration.
A substantially U-shaped metal pipe 20 is disposed between them. In addition, 22 and 23 are rubber hoses 10
a, 10b and the metal pipe 20. One end of the elbow 22, 23 connects the rubber hose 10a, 10 via the caulking joint 24, 25.
b, and the other end is the union joint part 2
It is connected to the metal pipe 20 via 6 and 27. Further, the U-shaped tip 20a of the metal pipe 20 is elastically supported on the vehicle body by a clamp 29 with a rubber 28 interposed therebetween, as shown in FIG. In addition, as shown in FIG.
The lengths 1 and 2 are different depending on the R dimension of the U-shaped tip 20a.
The rigidity of the piping system between the pump 9 and the power steering device 2 is determined.
本実施例は上記の通りであるから、ポンプ９で
発生する振動は、金属パイプ２０の変形によつ
て、該ポンプ９と動力舵取装置２間の配管系の剛
性が低下することによつて、動力舵取装置２への
伝播はかなり抑制されることになるのである。 Since the present embodiment is as described above, the vibrations generated in the pump 9 are caused by the deformation of the metal pipe 20 and the reduction in the rigidity of the piping system between the pump 9 and the power steering device 2. , the propagation to the power steering device 2 is considerably suppressed.
第５図は本考案の他の実施例を示すもので、ゴ
ムホース１０ａ，１０ｂの間に略Ｕ字状に折曲が
つた部分３０ａ，３０ｂを有する、全体が略Ｗ字
形状の金属パイプ３０を配設したものである。な
お、３１，３２はエルボ、３３，３４はかしめ結
合部、３５，３６はユニオン結合部で、前記金属
パイプ３０の略Ｕ字状に折曲された部分３０ａ，
３０ｂの間は、クランプ３９によつて車体に支持
されている。また、前記かしめ結合部３３，３４
から略Ｕ字状に折曲された部分３０ａ，３０ｂま
での長さ3，4は異なるよう形成されており、
また該部分３０ａ，３０ｂのR1，R2寸法はR1＝
R2もしくはR1≠R2になるよう設定されており、
これによつてポンプ９と動力舵取装置２間の配管
系の剛性を決定している。このように構成して
も、上記実施例と同様な作用効果が期待できる。 FIG. 5 shows another embodiment of the present invention, in which a metal pipe 30 is generally W-shaped in its entirety and has approximately U-shaped bent portions 30a and 30b between rubber hoses 10a and 10b. This is what was installed. Note that 31 and 32 are elbows, 33 and 34 are caulking joints, and 35 and 36 are union joints, which are the approximately U-shaped bent portions 30a of the metal pipe 30,
30b is supported on the vehicle body by a clamp 39. Further, the caulking joint portions 33, 34
The lengths 3 and 4 from the substantially U-shaped bent portions 30a and 30b are formed to be different,
In addition, the R 1 and R 2 dimensions of the portions 30a and 30b are R 1 =
It is set so that R 2 or R 1 ≠ R 2 ,
This determines the rigidity of the piping system between the pump 9 and the power steering device 2. Even with this configuration, the same effects as in the above embodiment can be expected.
以上説明したように、本考案によれば、ポンプ
の振動がオイル配管系に伝播しても金属パイプの
固定部で遮るとともに、油圧脈動を金属パイプの
変形により低減させることができるため、ポンプ
から動力舵取装置へ伝播される振動と油圧脈動を
抑制することが可能である。しかも、固定部から
両端までの金属パイプの長さが互いに相違してい
るために、脈動中の複数種類の特定振動数を確実
に低減させることが可能となる。 As explained above, according to the present invention, even if the vibration of the pump propagates to the oil piping system, it can be blocked by the fixed part of the metal pipe, and the hydraulic pulsation can be reduced by deforming the metal pipe. It is possible to suppress vibrations and hydraulic pulsations transmitted to the power steering device. Moreover, since the lengths of the metal pipes from the fixed part to both ends are different from each other, it is possible to reliably reduce a plurality of types of specific vibration frequencies during pulsation.
第１図は本考案の実施例を示す配管構造を備え
た動力舵取装置の構成図、第２図は第１図におい
て本考案の一部拡大図、第３図は第１図の要部拡
大図、第４図は第３図を−線で切断したとき
の断面図、第５図は本考案の他の実施例を示す要
部構成図である。
２…動力舵取装置、９…ポンプ、１９…供給
口、２０，３０…金属パイプ。
Fig. 1 is a block diagram of a power steering device with piping structure showing an embodiment of the present invention, Fig. 2 is a partially enlarged view of the present invention in Fig. 1, and Fig. 3 is the main part of Fig. 1. FIG. 4 is an enlarged view, and FIG. 4 is a sectional view taken along the - line in FIG. 3, and FIG. 5 is a configuration diagram of main parts showing another embodiment of the present invention. 2... Power steering device, 9... Pump, 19... Supply port, 20, 30... Metal pipe.
Claims (1)
両端にゴムホースを設けた金属パイプで接続した
動力舵取装置の配管構造において、前記金属パイ
プを略Ｕ字状に折曲げ、その略Ｕ字状の曲り部中
央を車体に固定し、かつ、その固定部から金属パ
イプ両端までの長さを互いに相違させたことを特
徴とする動力舵取装置の配管構造。 The discharge port of the pump and the supply port of the power steering device,
In the piping structure of a power steering device connected by a metal pipe with rubber hoses at both ends, the metal pipe is bent into a substantially U-shape, the center of the substantially U-shaped bent part is fixed to the vehicle body, and the A piping structure for a power steering device, characterized in that the lengths from the fixed part to both ends of the metal pipe are different from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12256581U JPS5828062U (en) | 1981-08-19 | 1981-08-19 | Power steering device piping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12256581U JPS5828062U (en) | 1981-08-19 | 1981-08-19 | Power steering device piping structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5828062U JPS5828062U (en) | 1983-02-23 |
| JPH0130293Y2 true JPH0130293Y2 (en) | 1989-09-14 |
Family
ID=29916486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12256581U Granted JPS5828062U (en) | 1981-08-19 | 1981-08-19 | Power steering device piping structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5828062U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5270836U (en) * | 1975-11-20 | 1977-05-26 |
-
1981
- 1981-08-19 JP JP12256581U patent/JPS5828062U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5828062U (en) | 1983-02-23 |
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