KR20040032633A - Device for Adjusting Minimum Rotation Radius of a vehicle - Google Patents

Device for Adjusting Minimum Rotation Radius of a vehicle Download PDF

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Publication number
KR20040032633A
KR20040032633A KR1020020061844A KR20020061844A KR20040032633A KR 20040032633 A KR20040032633 A KR 20040032633A KR 1020020061844 A KR1020020061844 A KR 1020020061844A KR 20020061844 A KR20020061844 A KR 20020061844A KR 20040032633 A KR20040032633 A KR 20040032633A
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KR
South Korea
Prior art keywords
rack
steering
pinion
vehicle
valve
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KR1020020061844A
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Korean (ko)
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KR100457197B1 (en
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허승구
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기아자동차주식회사
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Priority to KR10-2002-0061844A priority Critical patent/KR100457197B1/en
Publication of KR20040032633A publication Critical patent/KR20040032633A/en
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Publication of KR100457197B1 publication Critical patent/KR100457197B1/en

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    • 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
    • B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)

Abstract

PURPOSE: A device for regulating a minimum rotational radius of a vehicle is provided to simply change the minimum rotational radius only by operating a steering wheel to a driver's intension without installing a special electric switch and an actuator to a hydraulic power steering. CONSTITUTION: In a vehicle with a pinion-rack steering mechanism including a pinion arranged to the lower end of a steering shaft coupled with a steering wheel, a rack(14) embedded in a gear box(13) and combined to the pinion to freely transfer left and right, and a tie rod(15) installed between the rack and a steering vehicle wheel, a device for regulating a minimum rotational radius of the vehicle elastically supports a rack stopper(16) for limiting the transfer of the rack with a return spring(17) and installs the rack stopper to transfer left and right. The movable distance of the rack coupled with steering vehicle wheel through the tie rod is regulated by varying the positions of the rack stopper by a regulating valve(19) installed to a power steering pinion valve(18) supplying oil to the gear box to rotation states of the steering shaft.

Description

자동차의 최소 회전반경 조절장치{Device for Adjusting Minimum Rotation Radius of a vehicle}Device for Adjusting Minimum Rotation Radius of a vehicle

본 발명은 자동차의 최소 회전반경을 간편하게 조절할 수 있도록 하는 자동차의 최소 회전반경 조절장치에 관한 것으로, 더 자세하게는 조정밸브를 통해 랙스트로크를 결정짓는 랙스톱퍼의 위치를 변경할 수 있도록 한 것에 관한 것이다.The present invention relates to a minimum rotation radius control device for a vehicle that can easily adjust the minimum rotation radius of the vehicle, and more particularly, to the position of the rack stopper for determining the rack stroke through the adjustment valve.

일반적으로 자동차를 운행함에 있어서는 교차로 등에서 U턴을 통해 진행방향을 180도 회전시킬 필요가 많게 되는 바, 자동차의 최소 회전반경이 크게 되면 폭이 좁은 도로에서 한번에 회전을 할 수 없게 되므로 회전에 소요되는 시간이 많이 소요되어 도로 정체가 더욱 심화되는 등의 문제가 있게 되고 주차시에도 많은 불편이 있게 되며, 그렇다고 해서 최소 회전반경을 불필요하게 크게 하면 정상 주행시에 조향이 쉽지 않게 되어 각종 안전사고가 유발될 우려가 많게 된다.In general, when driving a car, it is necessary to rotate the traveling direction 180 degrees through the U-turn at an intersection, etc. When the minimum turning radius of the car is large, it is impossible to rotate at a narrow road at a time, so it is necessary to turn the car. It takes a lot of time, which leads to problems such as congestion of roads and more inconveniences in parking.However, if the minimum turning radius is made unnecessary, steering is not easy during normal driving and various safety accidents may occur. There is a lot of concern.

이에 필요에 따라 자동차의 최소 회전반경을 조절할 수 있도록 하는 최소 회전반경 조절장치가 제안되었는 바, 종래에 제안된 최소 회전반경 조절장치는 오동작의 우려가 많거나 작동이 불편하게 되는 문제가 있었다.Therefore, the minimum rotation radius adjustment device has been proposed to adjust the minimum rotation radius of the vehicle as needed, the conventional minimum rotation radius adjustment device has a problem that there is a lot of malfunction or inconvenient operation.

즉, 종래의 최소 회전반경 조절장치 중에서 특허 제316918호의 것은 차량의 하중조건을 센싱할 수 있는 센싱수단과, 센싱수단으로부터 입력되는 신호에 따른컨크롤유닛의 제어에 따라 구동되는 구동수단과, 구동수단의 구동에 의해 동작되면서 조향 기어박스의 조향스트로크를 조절하는 조향 스트록크 조절수단을 포함하는 것으로, 이는 차량의 출발 직전의 하중조건 및 최대 조향시 휠의 바운싱 정도를 산출하여 이에 알맞는 조향 스트로크를 설정할 수 있도록 한 것이지만 차량의 하중조건만 센싱하여 타이어 회전각도를 조절하기 때문에 승용차의 경우 가벼운 상태라도 체인을 부착하고 웅덩이나 둔턱을 만났을 때에 더 악조건이 될 수도 있어 타이어가 차체에 간섭될 소지가 많게 되는 등의 문제가 있었다.That is, in the conventional minimum rotation radius control apparatus of the patent No. 316918, the sensing means for sensing the load condition of the vehicle, the driving means driven under the control of the control unit according to the signal input from the sensing means, and the driving It includes a steering stroke adjusting means for adjusting the steering stroke of the steering gearbox while being driven by the means of driving means, which calculates the load condition just before the vehicle starts and the wheel bouncing degree at the maximum steering and is suitable for this steering stroke. However, since the tire rotation angle is adjusted by sensing only the load condition of the vehicle, even in the case of a light vehicle, it may be worse when the chain is attached and encounters a puddle or a bump so that the tire may interfere with the vehicle body. There was a problem such as getting a lot.

또한 특허 제345146호의 것은 스티어링 시스템을 형성하는 동력실린더의 양단부에 회전 가능하게 배치되는 회전체와, 랙에 고정되어 랙이 최대로 동력실린더 쪽으로 당겨졌을 때 회전체의 회전상태에 따라 회전체의 중앙부측으로 삽입되거나 겹쳐지는 스톱플레이트와, 회전체를 운전자의 조작스위치의 조작에 따른 컨트롤 유닛에 의해 제어되면서 회전체를 정,역회전시키는 액튜에이터로 이루어지는 것으로, 이는 스티어링 랙의 스트로크 량을 임의 조절하여 최소 회전반경을 용이하게 가변시킬 수 있게 되는 것이지만 반드시 운전자가 조작스위치를 작동하여야 하는 데다가 체인을 부착하고도 스위치의 작동을 잊어버릴 경우 전술한 바와 같은 간섭의 우려가 있게 되는 등의 문제가 있었다.In addition, Patent No. 345146 discloses a rotating body rotatably disposed at both ends of a power cylinder forming a steering system, and a central part of the rotating body according to the rotational state of the rotating body when the rack is fixed to the rack and pulled toward the power cylinder at the maximum. It consists of a stop plate inserted or superimposed on the side, and an actuator for rotating the rotating body forward and reverse while controlling the rotating body by the control unit according to the operation of the driver's operation switch. Although it is possible to easily change the rotation radius, the driver must operate the operation switch and if there is a problem of interference as described above if the operator forgets the operation of the switch even after attaching the chain.

본 발명은 상기 종래의 실정을 감안하여 안출한 것으로, 그 목적이 유압 파워스티어링에 별도의 전기적 스위치나 액튜에이터 없이 운전자에 의지에 따른 스티어링휠의 조작만으로 간편하게 최소 회전반경을 변경할 수 있도록 하는 자동차의 최소 회전반경 조절장치를 제공하는 데에 있는 것이다.The present invention has been made in view of the above-mentioned conventional situation, and its purpose is to minimize the radius of the vehicle so that the user can easily change the minimum turning radius by simply operating the steering wheel depending on the driver without a separate electrical switch or actuator for hydraulic power steering. It is to provide a rotation radius control device.

도 1은 본 발명이 관계하는 피니언-랙 조향기구의 사시도1 is a perspective view of a pinion-rack steering mechanism according to the present invention;

도 2는 본 발명의 한 실시예의 요부 종단면도2 is a longitudinal sectional view of main parts of one embodiment of the present invention;

도 3a는 동 실시예의 조정밸브의 릴리프압에 도달했을 때의 종단면도Fig. 3A is a longitudinal sectional view when the relief pressure of the control valve of the embodiment is reached.

도 3b는 동 실시예의 조정밸브의 복원상태의 종단면도3B is a longitudinal sectional view of the restored state of the adjustment valve of the embodiment;

* 도면의 주요 부분에 대한 부호 설명 *Explanation of symbols on the main parts of the drawings

10 : 스티어링휠11 : 스티어링샤프트10: steering wheel 11: steering shaft

13 : 기어박스13a : 오일유통공13: gear box 13a: oil distribution hole

13b : 이송장공14 : 랙13b: transfer shop 14: rack

15 : 타이로드16 : 랙스톱퍼15: tie rod 16: rack stopper

16a : 제지돌출부17 : 복원스프링16a: paper projection 17: restoring spring

18 : 파워스티어링 피니언밸브19 : 조정밸브18: power steering pinion valve 19: adjustment valve

21 : 조정밸브 몸체22 : 파워스티어링 피니언밸브 접속유로21: control valve body 22: power steering pinion valve connection flow path

23 : 기어박스 접속유로24 : 스프링23: gear box connection path 24: spring

25 : 밸브볼26 : 작동공간부25: valve ball 26: operating space

27 : 일방향 차단판28 : 회수유로27: one-way block 28: recovery path

본 발명은 상기의 목적을 달성하기 위하여 랙의 이송을 제한하는 랙스톱퍼를 복원스프링으로 탄성지지하고, 스티어링샤프트의 회전상태에 따라 오일을 기어박스로 공급하는 파워스티어링 피니언밸브에 설치한 별도의 조정밸브를 통해 랙스톱퍼의 위치를 가변하는 것에 의해 타이로드를 통해 조향바퀴와 접속된 랙의 이동거리를 조절할 수 있도록 한 것을 특징으로 하며, 이하 그 구체적인 기술내용을 첨부도면에 의거하여 더욱 자세히 설명하면 다음과 같다.In order to achieve the above object, the present invention provides a rack stopper for limiting the transfer of the rack to the elastic spring, and additionally installed in the power steering pinion valve for supplying oil to the gearbox according to the rotation state of the steering shaft. By varying the position of the rack stopper through the valve it is characterized in that it is possible to adjust the moving distance of the rack connected to the steering wheel through the tie rod, the following detailed description of the technical details according to the accompanying drawings As follows.

즉, 도 1에는 본 발명이 관계하는 피니언-랙 조향기구의 사시도가 도시되어 있고, 도 2에는 본 발명의 한 실시예의 요부 종단면도가 도시되어 있으며, 도 3a와 도 3b에는 동 실시예의 조정밸브의 종단면도가 도시되어 있는 바, 본 발명은 스티어링휠(10)과 접속된 스티어링샤프트(11)의 하단부에 피니언이 마련되고, 기어박스(13)에 내장되는 랙(14)이 상기 피니언에 결합되어 좌우방향으로 이송이 자유롭게 설치되며, 랙(14)과 조향바퀴의 사이에 타이로드(15)가 설치되는 피니언-랙 조향기구를 구비하는 자동차에 있어서, 상기 랙(14)의 이송을 제한하는 랙스톱퍼(16)를 복원스프링(17)으로 탄성지지하여 좌우방향으로 이송 가능하게 설치하고, 스티어링샤프트(11)의 회전상태에 따라 오일을 기어박스(13)로 공급하는 파워스티어링 피니언밸브(18)에 설치한 별도의 조정밸브(19)를 통해 랙스톱퍼(16)의 위치를가변하는 것에 의해 타이로드(15)를 통해 조향바퀴와 접속된 랙(14)의 이동거리를 조절할 수 있도록 하여서 되는 것이다.That is, FIG. 1 shows a perspective view of a pinion-rack steering mechanism to which the present invention relates, FIG. 2 shows a main longitudinal sectional view of one embodiment of the present invention, and FIGS. 3A and 3B show a control valve of the same embodiment. The longitudinal cross-sectional view of the bar is shown in the present invention, the pinion is provided at the lower end of the steering shaft 11 connected to the steering wheel 10, the rack 14 is built in the gearbox 13 is coupled to the pinion In the motor vehicle having a pinion-rack steering mechanism in which the tie rod 15 is installed between the rack 14 and the steering wheel, the transfer of the rack 14 is restricted. A power steering pinion valve (18) for elastically supporting the rack stopper (16) with a restoring spring (17) so as to be transported in left and right directions and supplying oil to the gearbox (13) in accordance with the rotational state of the steering shaft (11). Separate tank By changing the position of the rack stopper 16 through the positive valve 19 is to be able to adjust the moving distance of the rack 14 connected to the steering wheel through the tie rod (15).

도시된 실시예에서 타이로드(15)와 랙(14)은 인너볼조인트어셋이(20)를 통해 접속되며, 랙스톱퍼(16)가 설치되는 기어박스(13)의 일측 외주면에 오일유통공(13a)이 형성되고, 기어박스(13)의 일측 내주면에 랙스톱퍼(16)의 제지돌출부(16a)의 이송을 안내하는 이송장공(13b)이 형성된다.In the illustrated embodiment, the tie rod 15 and the rack 14 are connected through the inner ball joint asset 20, and the oil distribution hole is formed at one outer circumferential surface of the gear box 13 on which the rack stopper 16 is installed. 13a) is formed, and on one inner circumferential surface of the gear box 13, a conveying hole 13b for guiding the conveyance of the papermaking projection 16a of the rack stopper 16 is formed.

한편 도시된 실시예에서 조정밸브(19)는 도 3a 및 도 3b와 같이 몸체(21)의 하부에 파워스티어링 피니언밸브 접속유로(22)가 마련되고, 몸체(21)의 일측에 기어박스 접속유로(23)가 마련되며, 몸체(21)에 내부에 스프링(24)으로 탄성지지되는 볼밸브(25)가 설치되는 동시에 하부와 일측이 파워스티어링 피니언밸브 접속유로(22)와 기어박스 접속유로(23)에 연결되는 작동공간부(26)가 마련되고, 파워스티어링 피니언밸브 접속유로(22)의 일측과 기어박스 접속유로(23)의 하부 사이에 일방향 차단판(27)이 설치되는 회수유로(28)가 마련된 형태를 갖는다.Meanwhile, in the illustrated embodiment, the control valve 19 is provided with a power steering pinion valve connection flow passage 22 at a lower portion of the body 21 as shown in FIGS. 3A and 3B, and a gearbox connection flow passage at one side of the body 21. 23 is provided, the ball valve 25 which is elastically supported by the spring 24 is installed in the body 21 at the same time the lower and one side of the power steering pinion valve connection flow path 22 and the gearbox connection flow path ( A working flow path 26 connected to 23 is provided, and a recovery flow path in which a one-way blocking plate 27 is installed between one side of the power steering pinion valve connection flow path 22 and the lower portion of the gear box connection flow path 23 ( 28) is provided.

상기와 같이 구성된 본 발명에 있어서는 운전자의 의지에 따라 스티어링휠(10)의 조작만으로 최소 회전반경을 일정범위내에서 조절할 수 있게 되는 것으로, 이하 그 작용을 설명하면 다음과 같다.In the present invention configured as described above, the minimum rotation radius can be adjusted within a predetermined range only by the operation of the steering wheel 10 according to the driver's will.

즉, 본 발명에 있어서 스티어링휠(10)을 끝까지 돌려 랙스톱퍼(16)에 랙(13)이 닿은 후 운전자가 회전반경을 더 축소하고자 할 때는 같은 방향으로 조금 더 힘을 가하게 되면 파워스티어링 피니언밸브(18)를 통해 기어박스(13) 내부로 공급되는 오일이 릴리프압까지 올라가게 된다.That is, in the present invention, when the rack 13 is brought into contact with the rack stopper 16 by turning the steering wheel 10 to the end, when the driver wants to further reduce the radius of rotation, the power steering pinion valve is applied a little more in the same direction. The oil supplied into the gearbox 13 through 18 is increased to the relief pressure.

기어박스(13)의 오일압력이 릴리프압까지 올라가게 되면 도 3a와 같이 파워스티어링 피니언밸브(18)와 접속된 조정밸브(19)의 밸브볼(25)이 상승하여 작동공간부(26)가 개방되므로 파워스티어링 피니언밸브 접속유로(22)를 통해 진입하는 오일이 작동공간부(26) 및 기어박스 접속유로(23)를 거쳐 기어박스(13)의 오일유통공(13a)으로 공급되어 랙스톱퍼(16)가 일측으로 이동하게 되며, 그에 따라 랙(13) 스트로그가 더욱 커지게 되어 최소 회전반경이 축소된다.When the oil pressure of the gearbox 13 rises to the relief pressure, the valve ball 25 of the adjustment valve 19 connected to the power steering pinion valve 18 is raised as shown in FIG. Since the oil is opened, the oil entering through the power steering pinion valve connecting flow passage 22 is supplied to the oil distribution hole 13a of the gearbox 13 through the working space 26 and the gearbox connecting flow passage 23, thereby providing the rack stopper. 16 is moved to one side, so that the rack (13) stroke is larger, the minimum radius of rotation is reduced.

상기에서 스티어링휠(10)을 회전시키는 힘을 빼게 되며 오일압력은 떨어지게 되며, 그에 따라 복원스프링(17)을 통해 랙스톱퍼(16)가 원위치로 이동되는 동시에 도 3b와 같이 기어박스(13)의 랙스톱퍼(16)부위에서 빠져나오는 오일이 회수유로(28)의 일방향 차단판(27)를 열고 파워스티어링 피니언밸브 접속유로(22)쪽으로 유출되며, 스프링(24)의 탄성력이 작용하는 밸브볼(25)이 하강하여 작동공간부(26)를 밀폐하게 된다.The force for rotating the steering wheel 10 is removed from the above, and the oil pressure drops. Accordingly, the rack stopper 16 is moved to its original position through the restoring spring 17 and at the same time as shown in FIG. 3B. Oil coming out of the rack stopper 16 part opens the one-way blocking plate 27 of the recovery flow path 28 and flows out to the power steering pinion valve connection flow path 22, and a valve ball having an elastic force of the spring 24 acts ( 25 is lowered to seal the working space 26.

본 발명에 있어서 복원스프링(17)를 통해 랙스톱퍼(16)가 복원되는 힘은 일방향으로 회전되었던 스티어링휠(10)이 원위치로 복원되는 데에도 많은 도움을 주게 된다.In the present invention, the force of restoring the rack stopper 16 through the restoring spring 17 is also helpful in restoring the steering wheel 10, which has been rotated in one direction, to its original position.

일반적으로 차량의 최소 회전반경을 결정짓는 랙 스트로크량은 보통 한정된 차량의 공간에서 체인이 감아진 타이어를 고려하여 악조건(범프나 리바운딩)에서 간섭이 나지 않게 설계하므로 체인이 없거나 악조건이 아닌 경우는 랙스트로크를 좀더 크게 하여 회전하여도 무방한 바, 본 발명의 기술을 적용한 차량에 있어서는 체인을 부착하지 않았을 경우 운전자가 스티어링휠을 끝까지 돌린 후 조금만 더 힘을 주게 되면 최소 회전반경을 축소시킬 수 있게 되어 U턴이나 주차 등을 보다 간편하게 할 수 있게 된다.In general, the rack stroke amount that determines the minimum radius of rotation of a vehicle is usually designed so that it does not interfere in bad conditions (bump or rebound) in consideration of the tires in which the chain is wound in a limited space of the vehicle. If you do not attach the chain in the vehicle to which the technique of the present invention is applied, the driver can turn the steering wheel to the end and give a little more force to reduce the minimum turning radius. U-turns and parking will be easier.

이상에서와 같이 본 발명은 기어박스(13)에 위치가변형 랙스톱퍼(16)를 설치하고 스티어링휠(10)과 연동하는 별도의 조정밸브(19)를 통해 랙스톱퍼(16)의 위치 및 랙 스트로크를 가변할 수 있도록 한 것으로, 본 발명에 의하면 운전자의 의지에 의한 스티어링휠(10)의 조작만으로 자동차의 최소 회전반경을 간편하게 축소시킬 수 있게 되므로 U턴과 주차를 쉽게 할 수 있게 되고, 그에 따라 교통흐름을 원활히 할 수 있게 됨은 물론 자동차의 안전운행에 이바지 할 수 있게 되며, 자동차의 상품성을 향상시킬 수 있게 되는 등의 효과를 얻을 수 있게 된다.As described above, the present invention installs the variable rack stopper 16 in the gearbox 13 and the position and rack stroke of the rack stopper 16 through a separate adjustment valve 19 that interlocks with the steering wheel 10. To be able to vary, according to the present invention can easily reduce the minimum rotation radius of the car only by the operation of the steering wheel 10 by the driver's will can be easily U-turn and parking, accordingly Not only can the traffic flow smoothly, but also it can contribute to the safe driving of the car, and the effect of improving the merchandise of the car can be obtained.

Claims (3)

스티어링휠(10)과 접속된 스티어링샤프트(11)의 하단부에 피니언이 마련되고, 기어박스(13)에 내장되는 랙(14)이 상기 피니언에 결합되어 좌우방향으로 이송이 자유롭게 설치되며, 랙(14)과 조향바퀴의 사이에 타이로드(15)가 설치되는 피니언-랙 조향기구를 구비하는 자동차에 있어서, 상기 랙(14)의 이송을 제한하는 랙스톱퍼(16)를 복원스프링(17)으로 탄성지지하여 좌우방향으로 이송 가능하게 설치하고, 스티어링샤프트(11)의 회전상태에 따라 오일을 기어박스(13)로 공급하는 파워스티어링 피니언밸브(18)에 설치한 별도의 조정밸브(19)를 통해 랙스톱퍼(16)의 위치를 가변하는 것에 의해 타이로드(15)를 통해 조향바퀴와 접속된 랙(14)의 이동거리를 조절할 수 있도록 한 것을 특징으로 하는 자동차의 최소 회전반경 조절장치.A pinion is provided at a lower end of the steering shaft 11 connected to the steering wheel 10, and a rack 14 embedded in the gearbox 13 is coupled to the pinion so that the feed is freely installed in the left and right directions. In a motor vehicle having a pinion-rack steering mechanism in which a tie rod 15 is installed between a wheel 14 and a steering wheel, a rack stopper 16 for limiting the transfer of the rack 14 to a restoring spring 17 is provided. A separate control valve 19 installed on the power steering pinion valve 18 which is elastically supported so as to be movable in the left and right direction and supplies oil to the gearbox 13 according to the rotational state of the steering shaft 11 is provided. By adjusting the position of the rack stopper 16 through the tie rods (15) to adjust the moving distance of the rack 14 connected to the steering wheel, characterized in that the minimum rotation radius control device of the vehicle. 제1항에 있어서, 랙스톱퍼(16)가 설치되는 기어박스(13)의 일측 외주면에 오일유통공(13a)을 형성하고, 기어박스(13)의 일측 내주면에 랙스톱퍼(16)의 제지돌출부(16a)의 이송을 안내하는 이송장공(13b)을 형성한 것을 특징으로 하는 자동차의 최소 회전반경 조절장치.According to claim 1, wherein the oil distribution hole (13a) is formed in one outer peripheral surface of the gear box 13, the rack stopper 16 is installed, the paper projection of the rack stopper 16 on one inner peripheral surface of the gear box 13 The minimum rotation radius control device for a vehicle, characterized in that the formation of the conveying hole (13b) for guiding the conveyance of (16a). 제1항에 있어서, 조정밸브(19)는 몸체(21)의 하부에 파워스티어링 피니언밸브 접속유로(22)가 마련되고, 몸체(21)의 일측에 기어박스 접속유로(23)가 마련되며, 몸체(21)에 내부에 스프링(24)으로 탄성지지되는 볼밸브(25)가 설치되는 동시에 하부와 일측이 파워스티어링 피니언밸브 접속유로(22)와 기어박스 접속유로(23)에 연결되는 작동공간부(26)가 마련되고, 파워스티어링 피니언밸브 접속유로(22)의 일측과 기어박스 접속유로(23)의 하부 사이에 일방향 차단판(27)이 설치되는 회수유로(28)가 마련된 형태로 이루어진 것을 특징으로 하는 자동차의 최소 회전반경 조절장치.The method of claim 1, wherein the adjustment valve 19 is provided with a power steering pinion valve connecting passage 22 in the lower portion of the body 21, a gear box connecting passage 23 is provided on one side of the body 21, An operating space in which a ball valve 25 elastically supported by a spring 24 is installed in the body 21 and a lower side and one side thereof are connected to the power steering pinion valve connection channel 22 and the gearbox connection channel 23. A portion 26 is provided, and a recovery passage 28 in which a one-way blocking plate 27 is provided between one side of the power steering pinion valve connecting passage 22 and a lower portion of the gear box connecting passage 23 is provided. Minimum rotation radius control device of the vehicle, characterized in that.
KR10-2002-0061844A 2002-10-10 2002-10-10 Device for Adjusting Minimum Rotation Radius of a vehicle KR100457197B1 (en)

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CN115384612A (en) * 2022-09-09 2022-11-25 徐州徐工筑路机械有限公司 Installation method of steering device and crusher

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KR100936981B1 (en) 2007-12-12 2010-01-15 현대자동차주식회사 Variable Rack Stroke System

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JP3641032B2 (en) * 1995-09-04 2005-04-20 カヤバ工業株式会社 Rear wheel steering device
KR100192383B1 (en) * 1996-12-05 1999-06-15 정몽규 Cornering radius control device for vehicles
KR100291062B1 (en) * 1997-12-29 2001-06-01 이계안 operating cylinder structure for power steering system
KR100316918B1 (en) * 1999-07-14 2001-12-22 이계안 Cornering control system for vehicle

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* Cited by examiner, † Cited by third party
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CN115384612A (en) * 2022-09-09 2022-11-25 徐州徐工筑路机械有限公司 Installation method of steering device and crusher
CN115384612B (en) * 2022-09-09 2023-06-06 徐州徐工筑路机械有限公司 Installation method of steering device and crusher

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