JPH0124115B2 - - Google Patents
Info
- Publication number
- JPH0124115B2 JPH0124115B2 JP18349781A JP18349781A JPH0124115B2 JP H0124115 B2 JPH0124115 B2 JP H0124115B2 JP 18349781 A JP18349781 A JP 18349781A JP 18349781 A JP18349781 A JP 18349781A JP H0124115 B2 JPH0124115 B2 JP H0124115B2
- Authority
- JP
- Japan
- Prior art keywords
- housing
- valve
- shaft
- valve housing
- pinion
- 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
- 239000012530 fluid Substances 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
- B62D5/22—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for rack-and-pinion type
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Description
【発明の詳細な説明】
本発明はラツクピニオン式動力舵取装置に関
し、詳しくは、ギヤハウジングにバルブハウジン
グを液密的に組付けて形成したハウジングの内部
に操舵軸の回転により相対変位する一対の弁部材
を収容してなり、かつ前記ハウジングの内部にラ
ツク軸に噛合するピニオン軸の一端を液密的かつ
回転可能に軸支して収容してなり、前記両弁部材
の相対変位により前記バルブハウジング内を流通
する圧力流体のパワーシリンダに対する給排を制
御して、前記操舵軸の操作力を軽減するようにし
たラツクピニオン式動力舵取装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rack and pinion type power steering device, and more specifically, a gear housing and a valve housing are assembled in a liquid-tight manner. one end of a pinion shaft that meshes with the rack shaft is supported in a fluid-tight and rotatable manner within the housing, and the relative displacement of the two valve members causes the The present invention relates to a rack and pinion type power steering device that controls the supply and discharge of pressure fluid flowing through a valve housing to and from a power cylinder to reduce the operating force of the steering shaft.
一般に、この種動力舵取装置においては、ギヤ
ハウジングに装着した一対の軸受を介してピニオ
ン軸の両端がギヤハウジングに回転可能に軸支さ
れ、かつギヤハウジングの開口部に装着したシー
ル部材によりシールされていて、このピニオン軸
に操舵軸および両弁部材を連結した状態にてバル
ブハウジングがギヤハウジングに組付けられてい
る。このため、バルブハウジング内の圧力流体の
ギヤハウジング内への漏洩を防止するシール部材
のシール機能は、バルブハウジングをギヤハウジ
ングに組付けた状態でしかチエツクすることがで
きず、しかもバルブハウジング内からのギヤハウ
ジング内への圧力流体の漏洩は外部から目視する
ことができないため、シール部材自体の不良、シ
ール部材および／またはピニオン軸の組付不良に
起因する圧力流体の漏洩をチエツクすることは困
難であつた。 Generally, in this type of power steering device, both ends of the pinion shaft are rotatably supported by the gear housing via a pair of bearings installed in the gear housing, and are sealed by a sealing member installed in the opening of the gear housing. The valve housing is assembled to the gear housing with the steering shaft and both valve members connected to the pinion shaft. For this reason, the sealing function of the sealing member that prevents the leakage of pressure fluid in the valve housing into the gear housing can only be checked when the valve housing is assembled to the gear housing. Since leakage of pressure fluid into the gear housing cannot be visually observed from the outside, it is difficult to check for leakage of pressure fluid caused by a defect in the seal member itself, improper assembly of the seal member and/or pinion shaft. It was hot.
本発明は、この種動力舵取装置におけるこのよ
うな問題に着目してなされたもので、その主たる
目的は、バルブハウジング内のギヤハウジング内
への圧力流体の漏洩を阻止するシール部材のシー
ル機能をギヤハウジングにバルブハウジングを組
付ける前にチエツクでき、かつこの圧力流体の漏
洩を外部から目視できるようにすることにある。 The present invention was made by focusing on such problems in this type of power steering device, and its main purpose is to improve the sealing function of the sealing member to prevent pressure fluid from leaking into the gear housing in the valve housing. The purpose of the present invention is to enable checking of the valve housing before assembling the valve housing to the gear housing, and to visually check the leakage of pressure fluid from the outside.
以下、本発明を図面に基づいて説明するに、第
１図には本発明に係るラツクピニオン式動力舵取
装置の一例が示されている。この動力舵取装置は
ロータリ式制御弁機構を備えた動力舵取装置で、
この動力舵取装置においては、ギヤハウジング１
１にバルブハウジング１２を液密的に組付けて形
成してなるハウジングの内部に、制御弁機構２０
とピニオン軸３１が収容されている。 Hereinafter, the present invention will be explained based on the drawings. FIG. 1 shows an example of a rack and pinion type power steering device according to the present invention. This power steering device is equipped with a rotary control valve mechanism.
In this power steering device, the gear housing 1
A control valve mechanism 20 is installed inside the housing formed by assembling the valve housing 12 to the valve housing 1 in a liquid-tight manner.
and a pinion shaft 31 are housed therein.
制御弁機構２０は、操舵軸３２に一体的に形成
されたロータ弁部材２１と、ロータ弁部材２１の
外周に同心的かつ相対回転可能に嵌合されたスリ
ーブ弁部材２２を主要構成部材としていて、ロー
タ弁部材２１の外周およびスリーブ弁部材２２の
内周には、等間隔にて軸方向へ延びる複数の公知
のランド部とこれに対向する溝部がそれぞれ形成
されている。このロータ弁部材２１は、これと一
体の操舵軸３２に一端を固定しかつ他端をピニオ
ン軸３１に固定したトーシヨンバー３３によりピ
ニオン軸３１に連結されており、またスリーブ弁
部材２２は連結ピン２３によりピニオン軸３１に
連結されている。一方、ピニオン軸３１は上記し
たように操舵軸３２および両弁部材２１，２２に
連結しているとともに、ギヤハウジング１１内の
ラツク軸３４の一部に噛合している。なお、ラツ
ク軸３４は図示しないパワーシリンダ内を摺動す
るピストンを備えいて、このパワーシリンダおよ
びギヤハウジング１１内を挿通されてその両端が
操縦リンク機構を介して操行車輪に連結されてい
る。 The control valve mechanism 20 has a rotor valve member 21 integrally formed with a steering shaft 32, and a sleeve valve member 22 fitted to the outer periphery of the rotor valve member 21 concentrically and rotatably relative to each other. A plurality of well-known land portions extending in the axial direction at equal intervals and groove portions opposing the land portions are formed on the outer periphery of the rotor valve member 21 and the inner periphery of the sleeve valve member 22, respectively. The rotor valve member 21 is connected to the pinion shaft 31 by a torsion bar 33 which has one end fixed to a steering shaft 32 integral therewith and the other end fixed to the pinion shaft 31, and the sleeve valve member 22 is connected to the connecting pin 23. It is connected to the pinion shaft 31 by. On the other hand, the pinion shaft 31 is connected to the steering shaft 32 and both valve members 21 and 22 as described above, and also meshes with a part of the rack shaft 34 inside the gear housing 11. The rack shaft 34 includes a piston that slides inside a power cylinder (not shown), and is inserted through the power cylinder and the gear housing 11, and both ends thereof are connected to steering wheels via a steering link mechanism.
この動力舵取装置においては、第１図および第
２図に示すように、中立時流体ポンプ４１から第
１配管４２ａおよび供給ポート１２ａを通してバ
ルブハウジング１２内に流入される圧力流体が排
出ポート１２ｂおよび第２配管４２ｂを通してリ
ザーバ４３へ還流され、また操舵時には操舵軸３
２の回転によりロータ弁部材２１がスリーブ弁部
材２２に対してわずかに相対回転して、バルブハ
ウジング１２内に流入される圧力流体がバルブハ
ウジング１２の図示しない一方の分配ポートおよ
び第３配管４２ｃを通して図示しないパワーシリ
ンダの一方の流体室内へ供給され、同時にパワー
シリンダの他方の流体室内の圧力流体が第４配管
４２ｄ、他方の分配ポート、排出ポート１２ｂお
よび第２配管４２ｂを通してリザーバ４３へ還流
される。これにより、操舵時における操舵軸３２
の操作力が軽減される。 In this power steering device, as shown in FIGS. 1 and 2, pressure fluid flows into the valve housing 12 from the neutral fluid pump 41 through the first pipe 42a and the supply port 12a through the discharge port 12b and The water is returned to the reservoir 43 through the second pipe 42b, and during steering, the steering shaft 3
2, the rotor valve member 21 rotates slightly relative to the sleeve valve member 22, and the pressure fluid flowing into the valve housing 12 passes through one distribution port (not shown) of the valve housing 12 and the third pipe 42c. The pressure fluid is supplied into one fluid chamber of the power cylinder (not shown), and at the same time, the pressure fluid in the other fluid chamber of the power cylinder is returned to the reservoir 43 through the fourth pipe 42d, the other distribution port, the discharge port 12b, and the second pipe 42b. . As a result, the steering shaft 32 during steering
The operating force is reduced.
しかして、ピニオン軸３１の一端は、バルブハ
ウジング１２の取付側開口部の内側に組付けたボ
ールベアリング１３とシール部材１４を介してバ
ルブハウジング１２に液密的かつ回転可能に軸支
され、またピニオン軸３１の他端はギヤハウジン
グ１１の底部に組付けたニードルベアリング１５
を介してギヤハウジング１１に回転可能に軸支さ
れている。 Thus, one end of the pinion shaft 31 is fluid-tightly and rotatably supported by the valve housing 12 via the ball bearing 13 and seal member 14 assembled inside the installation side opening of the valve housing 12. The other end of the pinion shaft 31 is a needle bearing 15 assembled to the bottom of the gear housing 11.
It is rotatably supported by the gear housing 11 via.
ギヤハウジング１１の取付側開口部は区柱状の
嵌合凹所１１ａに形成されており、またバルブハ
ウジング１２の取付側開口部には、ギヤハウジン
グ１１の嵌合凹所１１ａに嵌合可能な筒状突起部
１２ｃが形成されている。ボールベアリング１３
は、筒状突起部１２ｃの内孔内に嵌合されてその
底部に位置し、ピニオン軸３１の一端部上にカシ
メ止めされたリング状の締付部材１６と後述する
プラグ１７により固定されている。一方、シール
部材１４はピニオン軸２１の外周に密接するリン
グ状を呈していて、筒状突起部１２ｃの開口端部
に液密的に螺着されるプラグ１７の内孔内に支持
されている。このシール部材１４は、プラグ１７
を筒状突起部１２ｃの開口端部に螺着することに
より、その内側に組付けられている。これによ
り、ボールベアリング１３においては、締付部材
１６によりインナレースのガタが除かれかつプラ
グ１７によりアウタレースのガタが除かれた状態
にて筒状突起部１２ｃの内側に組付けられ、シー
ル部材１４とともにピニオン軸３１の一端を液密
的かつ回転可能に軸支している。 The opening on the mounting side of the gear housing 11 is formed as a columnar fitting recess 11a, and the opening on the mounting side of the valve housing 12 has a cylinder that can be fitted into the fitting recess 11a of the gear housing 11. A shaped protrusion 12c is formed. ball bearing 13
is fitted into the inner hole of the cylindrical protrusion 12c and located at the bottom thereof, and is fixed by a ring-shaped tightening member 16 caulked onto one end of the pinion shaft 31 and a plug 17 to be described later. There is. On the other hand, the seal member 14 has a ring shape that closely fits around the outer periphery of the pinion shaft 21, and is supported within the inner hole of a plug 17 that is screwed into the open end of the cylindrical projection 12c in a fluid-tight manner. . This sealing member 14 is a plug 17
is assembled inside the cylindrical protrusion 12c by screwing it onto the open end of the cylindrical protrusion 12c. As a result, the ball bearing 13 is assembled inside the cylindrical protrusion 12c with the inner race loosely removed by the tightening member 16 and the outer race loosely removed by the plug 17, and the sealing member 14 At the same time, one end of the pinion shaft 31 is rotatably supported in a liquid-tight manner.
かかる動力舵取装置においては、次の手順で組
付けられる。すなわち、ボールベアリング１３を
ピニオン軸３１の外周に嵌合させて締付部材１６
によりインナレースを固定し、ピニオン軸３１と
操舵軸３２をトーシヨンバー３３により連結する
ともに、操舵軸３２と一体のロータ弁部材２１の
外周に嵌合したスリーブ弁部材２２とピニオン軸
３１を連結ピン２３により連結して、シール部材
１８およびニードルベアリング１９等を介してバ
ルブハウジング１２内に挿入し、かつボールベア
リング１３をピニオン軸３１の他端側からバルブ
ハウジング１２の筒状突起部１２ｃ内に嵌合させ
る。次いで、シール部材１４と一体のプラグ１７
をピニオン軸３１の他端側からバルブハウジング
１２の筒状突起部１２ｃの開口端部に液密的に螺
着し、ボールベアリング１３のアウタレースを固
定する。これにより形成された組付体（以下バル
ブ組付体という）は、第１図の左方部および第２
図に示すように、両弁部材２１，２２がバルブハ
ウジング１２内の所定の位置に収容され、また操
舵軸３２がバルブハウジング１２に液密的かつ回
転可能に軸支されてバルブハウジング１２内から
延出し、かつピニオン軸３１がバルブハウジング
１２の筒状突起部１２ｃ内に液密的かつ回転可能
に軸支されてバルブハウジング１２内から延出し
ている。最後に、このバルブ組付体におけるバル
ブハウジング１２の筒状突起部１２ｃをギヤハウ
ジング１１の嵌合凹所１１ａ内に液密的に嵌合し
て、バルブ組付体を両ハウジング１１，１２の接
合端面にて複数のボルトによりギヤハウジング１
１に組付ける。 Such a power steering device is assembled in the following steps. That is, the ball bearing 13 is fitted onto the outer periphery of the pinion shaft 31 and the tightening member 16 is
The inner race is fixed by the pinion shaft 31, and the pinion shaft 31 and the steering shaft 32 are connected by the torsion bar 33, and the sleeve valve member 22 fitted on the outer periphery of the rotor valve member 21 integrated with the steering shaft 32 is connected to the pinion shaft 31 by the connecting pin 23. The ball bearing 13 is inserted into the valve housing 12 via the seal member 18 and the needle bearing 19, etc., and the ball bearing 13 is fitted into the cylindrical protrusion 12c of the valve housing 12 from the other end side of the pinion shaft 31. let Next, the plug 17 integrated with the sealing member 14
is screwed onto the open end of the cylindrical protrusion 12c of the valve housing 12 from the other end of the pinion shaft 31 in a liquid-tight manner, thereby fixing the outer race of the ball bearing 13. The assembled body thus formed (hereinafter referred to as the valve assembly) is the left part and the second part in FIG.
As shown in the figure, both valve members 21 and 22 are housed in predetermined positions within the valve housing 12, and the steering shaft 32 is rotatably supported by the valve housing 12 in a fluid-tight manner so that the steering shaft 32 is rotatably supported from within the valve housing 12. The pinion shaft 31 extends from the inside of the valve housing 12 and is rotatably supported in a liquid-tight manner within the cylindrical protrusion 12c of the valve housing 12. Finally, the cylindrical protrusion 12c of the valve housing 12 in this valve assembly is fluid-tightly fitted into the fitting recess 11a of the gear housing 11, and the valve assembly is assembled between both housings 11 and 12. Gear housing 1 is attached by multiple bolts at the joint end surface.
Assemble to 1.
このように構成した動力舵取装置においては、
第２図に示すように、バルブ組付体の状態でバル
ブハウジング１２内の圧力流体の漏洩をチエツク
することができる。第２図において、符号Ａは動
力舵取装置のパワーシリンダに対応するアクチユ
エータであつて、このアクチユエータＡの一方の
流体室R1にはバルブハウジングの一方の分配ポ
ートに接続した第３配管４２ｃが接続され、また
アクチユエータＡの他方の流体室R2にはバルブ
ハウジングの他方の分配ポートに接続した第４配
管４２ｄが接続される。これにより、バルブ組付
体の内部に、動力舵取装置の中立時および操舵時
における圧力流体の流れと全く同じ流れを生じさ
せることができて、バルブハウジング１２内から
圧力流体の漏洩をギヤハウジング１１に組付ける
前にチエツクすることができ、また圧力流体の漏
洩を外部から目視しえてシール部材１４自体の不
良、シール部材１４および／またはピニオン軸３
１の組付不良を容量にチエツクすることができ
る。 In the power steering device configured in this way,
As shown in FIG. 2, leakage of pressure fluid within the valve housing 12 can be checked in the valve assembly state. In FIG. 2, symbol A is an actuator corresponding to the power cylinder of the power steering device, and one fluid chamber R1 of this actuator A has a third pipe 42c connected to one distribution port of the valve housing. Further, the other fluid chamber R2 of the actuator A is connected to a fourth pipe 42d connected to the other distribution port of the valve housing. As a result, it is possible to generate the same flow of pressure fluid inside the valve assembly as the flow of pressure fluid when the power steering device is in neutral and during steering, and to prevent leakage of pressure fluid from inside the valve housing 12 to the gear housing. 11, and the leakage of pressure fluid can be visually checked from the outside to detect defects in the seal member 14 itself, the seal member 14 and/or the pinion shaft 3.
It is possible to check the capacity for defective assembly.
なお、本実施例においては、ピニオン軸３１の
一端を回転可能に軸支する軸受にボールベアリン
グ１３を用い、このボールベアリング１３をプラ
グ１７によりバルブハウジング１２の筒状突起部
１２ｃ内に組付けた例について示したが、本発明
においてはボールベアリング１３に換えて適宜の
軸受を用いて、この軸受を適宜の組付手段にてバ
ルブハウジングの組付側開口部の内側に組付けて
もよい。また、シール部材１４の組付手段につい
ても同様で、プラグ１７に換えて適宜の組付手段
を用いることができる。 In this embodiment, a ball bearing 13 is used as a bearing that rotatably supports one end of the pinion shaft 31, and this ball bearing 13 is assembled into the cylindrical protrusion 12c of the valve housing 12 by a plug 17. Although an example has been shown, in the present invention, an appropriate bearing may be used instead of the ball bearing 13, and this bearing may be assembled inside the assembly side opening of the valve housing by an appropriate assembly means. Further, the same applies to the assembling means of the seal member 14, and an appropriate assembling means can be used in place of the plug 17.
さらに、本実施例においては、制御弁機構とし
てロータ弁部材２１およびスリーブ弁部材２２を
主要構成部材とし、両弁部材２１，２２の相対回
転により圧力流体を制御するロータリ式制御弁機
構を備えた動力舵取装置の例について示したが、
本発明はスプール弁部材およびスリーブ弁部材を
主要構成部材とし、両弁部材の軸方向への相対変
位により圧力流体を制御するスプール式制御弁機
構を備えた動力舵取装置にも実施できる。 Further, in this embodiment, a rotary type control valve mechanism is provided as a control valve mechanism, which uses a rotor valve member 21 and a sleeve valve member 22 as main components, and controls pressure fluid by relative rotation of both valve members 21 and 22. Although we have shown an example of a power steering device,
The present invention can also be implemented in a power steering device equipped with a spool-type control valve mechanism that uses a spool valve member and a sleeve valve member as main components and controls pressure fluid by relative displacement of both valve members in the axial direction.
要するに、本発明は、ギヤハウジングにバルブ
ハウジングを液密的に組付けて形成したハウジン
グの内部に操舵軸の回転により相対変位する一対
の弁部材を収容してなり、かつ前記ハウジングの
内部にラツク軸に噛合するピニオン軸の一端を液
密的かつ回転可能に軸支して収容してなり、前記
両弁部材の相対変変位により前記バルブハウジン
グ内を流通する圧力流体のパワーシリンダに対す
る給排を制御して、前記操舵軸の操作力を軽減す
るようにした各種形式のラツクピニオン式動力舵
取装置に実施しうる。 In short, the present invention has a housing that is formed by liquid-tightly assembling a valve housing to a gear housing, and houses a pair of valve members that are relatively displaced by the rotation of a steering shaft, and that the housing has a valve housing that is easily attached to the housing. One end of a pinion shaft that meshes with the shaft is rotatably supported in a fluid-tight manner, and the pressure fluid flowing in the valve housing is supplied to and discharged from the power cylinder by relative displacement of both the valve members. The present invention can be implemented in various types of rack and pinion power steering devices in which the operating force of the steering shaft is reduced by controlling the steering shaft.
以上説明したように、本発明は上記した各種形
式のラツクピニオン式動力舵取装置において、前
記バルブハウジングの組付側開口部の内側に、前
記ピニオン軸の一端を軸支する軸受と前記ピニオ
ン軸の外周に密接するシール部材を組付けて、前
記ピニオン軸の一端を前記軸受およびシール部材
を介して前記バルブハウジングに軸支した状態に
て、このバルブハウジングを前記ギヤハウジング
に組付けたことにその構成上の特徴がある。従つ
て、本発明によれば、バルブハウジングをギヤハ
ウジングに組付ける前のバルブ組付体の状態でバ
ルブハウジング内からの圧力流体の漏洩をチエツ
クすることができ、また圧力流体の漏洩を外部か
ら目視しえてシール部材自体の不良、シール部材
および／またはピニオン軸の組付不良を容易にチ
エツクすることができる。 As explained above, in the various types of rack and pinion power steering devices described above, the present invention provides a bearing for pivotally supporting one end of the pinion shaft, and a bearing for pivotally supporting one end of the pinion shaft inside the assembly side opening of the valve housing. A sealing member that is in close contact with the outer periphery of the valve housing is assembled to the gear housing with one end of the pinion shaft being pivotally supported by the valve housing via the bearing and the sealing member. There is a characteristic of its composition. Therefore, according to the present invention, it is possible to check for leakage of pressure fluid from inside the valve housing in the state of the valve assembly before assembling the valve housing to the gear housing, and to check for leakage of pressure fluid from the outside. It is possible to visually check for defects in the seal member itself and for defects in the assembly of the seal member and/or pinion shaft.
第１図は本発明に係る動力舵取装置の一例を示
す縦断面図、第２図は圧力流体の漏洩のチエツク
状態を示すバルブ組付体の一部破断側面図であ
る。
符号の説明、１１…ギヤハウジング、１１ａ…
嵌合凹所、１２…バルブハウジング、１２ｃ…筒
状突起部、１３…ボールベアリング、１４…シー
ル部材、１６…締付部材、１７…プラグ、２１…
ロータ弁部材、２２…スリーブ弁部材、３１…ピ
ニオン軸、３２…操舵軸、３４…ラツク軸、Ａ…
アクチユエータ。
FIG. 1 is a longitudinal sectional view showing an example of a power steering device according to the present invention, and FIG. 2 is a partially cutaway side view of a valve assembly showing a state in which pressure fluid leakage is checked. Explanation of symbols, 11... Gear housing, 11a...
Fitting recess, 12... Valve housing, 12c... Cylindrical protrusion, 13... Ball bearing, 14... Seal member, 16... Tightening member, 17... Plug, 21...
Rotor valve member, 22...Sleeve valve member, 31...Pinion shaft, 32...Steering shaft, 34...Rack shaft, A...
Actuator.
Claims (1)
に組付けて形成したハウジングの内部に操舵軸の
回転により相対変位する一対の弁部材を収容して
なり、かつ前記ハウジングの内部にラツク軸に噛
合するピニオン軸の一端を液密的かつ回転可能に
軸支して収容してなり、前記両弁部材の相対変位
により前記バルブハウジング内を流通する圧力流
体のパワーシリンダに対する給排を制御して、前
記操舵軸の操作力を軽減するようにしたラツクピ
ニオン式動力舵取装置において、前記バルブハウ
ジングの組付側開口部の内側に、前記ピニオン軸
の一端を軸支する軸受と前記ピニオン軸の外周に
密接するシール部材を組付けて、前記ピニオン軸
の一端を前記軸受およびシール部材を介して前記
バルブハウジングに軸支した状態にて、このバル
ブハウジングを前記ギヤハウジングに組付けたこ
とを特徴とするラツクピニオン式動力舵取装置。1 A housing formed by liquid-tightly assembling a valve housing to a gear housing houses a pair of valve members that are relatively displaced by rotation of a steering shaft, and a pinion that meshes with the easy shaft inside the housing. One end of the shaft is rotatably supported and accommodated in a fluid-tight manner, and relative displacement of the two valve members controls the supply and discharge of pressure fluid flowing through the valve housing to and from the power cylinder, thereby controlling the steering operation. In a rack and pinion type power steering device designed to reduce the operating force of the shaft, a bearing for pivotally supporting one end of the pinion shaft and a bearing closely attached to the outer periphery of the pinion shaft are provided inside the assembly side opening of the valve housing. A rack characterized in that the valve housing is assembled to the gear housing with a sealing member attached thereto and one end of the pinion shaft being pivotally supported by the valve housing via the bearing and the sealing member. Pinion type power steering device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18349781A JPS5885758A (en) | 1981-11-16 | 1981-11-16 | Rack and pinion type power steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18349781A JPS5885758A (en) | 1981-11-16 | 1981-11-16 | Rack and pinion type power steering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5885758A JPS5885758A (en) | 1983-05-23 |
| JPH0124115B2 true JPH0124115B2 (en) | 1989-05-10 |
Family
ID=16136850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18349781A Granted JPS5885758A (en) | 1981-11-16 | 1981-11-16 | Rack and pinion type power steering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5885758A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6417876U (en) * | 1987-07-24 | 1989-01-30 | ||
| JPS6417875U (en) * | 1987-07-24 | 1989-01-30 | ||
| KR100417963B1 (en) * | 2001-02-09 | 2004-02-11 | 주식회사 만도 | Oil seal of power steering device |
-
1981
- 1981-11-16 JP JP18349781A patent/JPS5885758A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5885758A (en) | 1983-05-23 |
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