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KR20040052346A - Body valve use in a shock absorber - Google Patents

Body valve use in a shock absorber Download PDF

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Publication number
KR20040052346A
KR20040052346A KR1020020080217A KR20020080217A KR20040052346A KR 20040052346 A KR20040052346 A KR 20040052346A KR 1020020080217 A KR1020020080217 A KR 1020020080217A KR 20020080217 A KR20020080217 A KR 20020080217A KR 20040052346 A KR20040052346 A KR 20040052346A
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South Korea
Prior art keywords
disk
shock absorber
body valve
valve
present
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KR1020020080217A
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KR100757808B1 (en
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정문상
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주식회사 만도
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/34Special valve constructions; Shape or construction of throttling passages
    • F16F9/348Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00Purpose; Design features
    • F16F2230/0011Balancing, e.g. counterbalancing to produce static balance

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

본 발명은 쇽 업소버의 바디밸브에 관한 것이다.The present invention relates to a body valve of a shock absorber.

본 발명에 따른 바디밸브의 다판 디스크는 순차적으로 디스크-S와, 복수의 디스크로 설치되고; 상기 디스크-S는, 내측면으로 개방된 슬릿이 원주 방향으로 다수개 형성되는 것을 특징으로 한다. 따라서 바디밸브를 통과하는 오일이 일정한 유로를 가질 수 있도록 바디밸브의 구조를 개선함으로써, 유체의 산포 현상이 줄어들어 감쇠력 성능이 향상되는 효과가 있다. 또한, 디스크 링의 삭제로 원가절감을 이루는 효과가 있다.The multi-plate disk of the body valve according to the present invention is provided with a disk-S, a plurality of disks in sequence; The disk-S is characterized in that a plurality of slits opened in the inner surface is formed in the circumferential direction. Therefore, by improving the structure of the body valve so that the oil passing through the body valve has a certain flow path, the dispersion phenomenon of the fluid is reduced, thereby improving the damping force performance. In addition, there is an effect of reducing the cost by eliminating the disk ring.

Description

쇽 업소버의 바디밸브{BODY VALVE USE IN A SHOCK ABSORBER}Shock Absorber Body Valve {BODY VALVE USE IN A SHOCK ABSORBER}

본 발명은 쇽업소버의 하부에 위치한 바디밸브에 관한 것으로서, 더욱 상세하게는 개선된 밸브 구조로 하여 원가절감과 감쇠력 성능이 향상된 쇽 업소버의 바디밸브에 관한 것이다.The present invention relates to a body valve located in the lower portion of the shock absorber, and more particularly to the body valve of the shock absorber with improved cost reduction and damping force performance.

일반적으로 쇽 업소버(shock absorber)는 차축과 차체 사이에 설치되어 차량의 주행시 차축이 노면으로부터 받는 진동이나 충격을 흡수하여 승차감을 향상시키는 방진, 완충장치로서, 그 내부는 감쇠력을 증대시킬 수 있도록 가스 및 오일 등의 충진물이 채워진다.In general, shock absorbers are installed between the axle and the body to absorb vibrations or shocks received by the axle from the road surface to improve ride comfort. The interior of the shock absorber is a gas so as to increase damping force. And fillers such as oil are filled.

도 1은 이러한 종래의 쇽 업소버 내부를 보인 단면도이다. 이에 도시된 바와 같이 종래의 쇽 업소버(1)는 오일이 가득 채워진 내부관(20)과, 그 외측으로 오일이 절반정도 채워진 외부관(10), 그리고 일단은 내부관(20) 내측으로 삽입되고 타단은 외부관(10) 외측으로 연장된 피스톤 로드(30)가 마련된다.1 is a cross-sectional view showing the inside of such a conventional shock absorber. As shown therein, the conventional shock absorber 1 has an inner tube 20 filled with oil, an outer tube 10 filled with oil to the outside thereof, and one end is inserted into the inner tube 20. The other end is provided with a piston rod 30 extending to the outside of the outer tube (10).

상기 내부관(20)은 외부관(10)의 내측에 외부관(10)과 소정간격 이격되도록 설치되어 그 사이에 오일이 저장되는 저장실(15)을 형성하는 중공관으로서, 상측은 피스톤 로드(30)가 외부로 연장될 수 있도록 그 중심축이 개구되어 있고, 그 하측에는 저장실(15)과 내부관(20)의 내부로 오일이 유동되는 바디 몸체(22)를 가진 바디 밸브(21)가 설치되며, 그 하부에 발판(40)과 외부관(10)에 베이스 캡(50)이 압입 설치된다. 그리고 내부관(20)의 내부에는 내부관(20)과 마찰되면서 슬라이딩 이동되는 피스톤 밸브(31)가 설치된다.The inner tube 20 is a hollow tube installed inside the outer tube 10 to be spaced apart from the outer tube 10 by a predetermined interval to form a storage chamber 15 in which oil is stored therebetween, the upper side of which is a piston rod ( A central valve is opened so that 30 may extend outward, and a lower side body valve 21 having a body body 22 through which oil flows into the storage chamber 15 and the inner tube 20 is provided. The base cap 50 is press-fitted to the footrest 40 and the outer tube 10 at the bottom thereof. And the inside of the inner tube 20 is provided with a piston valve 31 which is slid and moved friction with the inner tube (20).

여기서 바디밸브(21)는 바디몸체(22)에 통로(23)가 관통한 상태로 복수 형성된다.Here, the body valve 21 is formed in plural in a state where the passage 23 penetrates the body body 22.

그리고 바디몸체(22)의 상면에는 스프링(24)이 설치되고, 바디몸체(22)의 하면에는 통로(23)를 개폐시키는 다판 디스크(25)가 설치된다.And a spring 24 is provided on the upper surface of the body body 22, the multi-plate disk 25 for opening and closing the passage 23 is provided on the lower surface of the body body 22.

그리고 다판 디스크(25)는 순차적으로 적층되는 복수의 디스크(26)와, 디스크-S(27)와, 상기 발판(40)과 바디몸체(22)와의 수평 상태를 유지하기 위한 디스크링(28)으로 이루어지며, 디스크-S(27)에는 외측으로 개방된 슬릿(27a)이 다수개 형성된다.And the multi-disc disk 25 is a plurality of disks 26 are sequentially stacked, disk-S (27), the disk ring 28 for maintaining the horizontal state of the footrest 40 and the body body 22 The disk-S 27 is formed with a plurality of slits 27a opened outward.

이와 같이 구성된 쇽 업소버의 바디밸브(21)는 피스톤 로드(30)의 상하 왕복운동에 따라 내부관(20)과 외부관(10)에 채워진 오일이, 저속에서는 바디밸브(21)의 외측을 따라 디스크-S(27)의 슬릿(27a)을 통과하여 감쇠력을 발생시키며, 고속에서는 통로(23)를 통과하면서 감쇠력이 발생하게 된다.The body valve 21 of the shock absorber configured as described above is oil filled in the inner tube 20 and the outer tube 10 according to the vertical reciprocating motion of the piston rod 30, and at a low speed along the outer side of the body valve 21. The damping force is generated by passing through the slit 27a of the disk-S 27, and the damping force is generated while passing through the passage 23 at high speed.

그러나 이렇게 바디밸브를 통과하는 오일이 저속과 고속에서 다르게 유로가 형성됨으로써, 산포가 발생하게 된다. 따라서 감쇠력의 성능 저하를 가져오는 단점이 있었다.However, as the oil passing through the body valve is formed differently at low speed and high speed, dispersion occurs. Therefore, there was a disadvantage that the performance of the damping force.

본 발명은 상술한 바와 같은 종래의 문제점을 해결하기 위한 것으로서, 바디밸브를 통과하는 오일이 일정한 유로를 가질 수 있도록 바디밸브의 구조를 개선하였으며, 디스크 링의 삭제로 원가절감을 이룰 수 있는 쇽 업소버의 바디밸브를 제공하는데 그 목적이 있다.The present invention is to solve the conventional problems as described above, to improve the structure of the body valve so that the oil passing through the body valve has a constant flow path, the shock absorber that can achieve the cost saving by eliminating the disk ring Its purpose is to provide a body valve.

상기의 목적을 달성하기 위하여 본 발명은, 내부관 하단의 발판 상부에 설치되며, 동심원상에 다수개의 통로가 형성된 바디몸체와, 상기 바디몸체의 하면에 설치되어 통로를 개폐시키는 다판 디스크를 구비하는 쇽 업소버의 바디밸브에 있어서, 상기 다판 디스크는 순차적으로 디스크-S와, 복수의 디스크로 설치되고; 상기 디스크-S는, 내측면으로 개방된 슬릿이 원주 방향으로 다수개 형성되는 것을 특징으로 하는 쇽 업소버의 바디밸브를 제공한다.In order to achieve the above object, the present invention, the upper body is provided on the bottom of the scaffold, the body body having a plurality of passages formed on the concentric circle, and provided on the lower surface of the body body having a multi-plate disk for opening and closing the passage A shock absorber body valve, wherein the multi-plate disc is sequentially provided with a disc-S and a plurality of discs; The disk-S provides a shock absorber body valve, characterized in that a plurality of slits opened to the inner side are formed in the circumferential direction.

도 1은 종래의 쇽 업소버의 바디밸브를 도시한 단면도이고,1 is a cross-sectional view showing a body valve of a conventional shock absorber,

도 2는 본 발명에 따른 쇽 업소버의 바디밸브의 단면도이다.2 is a cross-sectional view of the body valve of the shock absorber according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the code | symbol about the principal part of drawing>

100 : 외부관 200 : 내부관100: outer tube 200: inner tube

210 : 바디밸브 220 : 바디몸체210: body valve 220: body body

230 : 통로 240 : 스프링230: passage 240: spring

250 : 다판 디스크 252 : 디스크-S250: multi-disc disk 252: disk-S

252a : 슬릿 254 : 디스크252a: slit 254: disk

300 : 발판300: scaffold

이하 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시 예를 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 쇽 업소버의 바디밸브의 단면도이다.2 is a cross-sectional view of the body valve of the shock absorber according to the present invention.

도 2에 도시되어 있는 바와 같이, 내부관(200) 하단 발판(300)의 상부에 설치되는 바디밸브(210)는 바디몸체(220)에 통로(230)가 관통한 상태로 복수개 형성된다.As shown in FIG. 2, a plurality of body valves 210 installed on an upper portion of the lower foot plate 300 of the inner tube 200 are formed in a state in which passages 230 penetrate through the body body 220.

그리고 바디몸체(220)의 상면에는 스프링(240)이 설치되고, 바디몸체(220)의 하면에는 통로(230)를 개폐시키는 다판 디스크(250)가 설치된다.And a spring 240 is installed on the upper surface of the body body 220, the multi-plate disk 250 for opening and closing the passage 230 is installed on the lower surface of the body body 220.

여기서 본 발명에 따라 다판 디스크(250)는 순차적으로 적층되는 디스크-S(252)와, 복수개의 디스크(254)로 구성된다.According to the present invention, the multi-plate disc 250 is composed of a disk-S 252 and a plurality of disks 254 sequentially stacked.

디스크-S(252)에 형성되는 슬릿(252a)은 개방면이 내측을 향하도록 원주방향으로 다수개 형성된다.A plurality of slits 252a formed in the disk-S 252 are formed in the circumferential direction so that the open surface faces inward.

그리고 복수개의 디스크(254)는 디스크-S(252)와 발판(300)에 사이에 설치되어, 통로(230)를 따라 감쇠력을 발생시킬 뿐만 아니라, 상기 발판(300)의 원형부에 거치되는 바디몸체(220)의 수평 상태를 유지하도록 하는 기능이 추가된다.The plurality of disks 254 are installed between the disk-S 252 and the scaffold 300 to generate a damping force along the passage 230, as well as a body mounted on the circular portion of the scaffold 300. The function of maintaining the horizontal state of the body 220 is added.

이와 같이 구성된 본 발명에 쇽 업소버의 바디밸브의 작동을 설명하면 다음과 같다.Referring to the operation of the shock absorber body valve in the present invention configured as described above are as follows.

먼저, 인장 행정시의 저속과 고속구간에서는 도 2에 도시된 바와 같이, 유체가 바디몸체(220)의 통로(230)를 통해 스프링(240)을 상방으로 압축하면서 감쇠력을 발생시키게 된다.First, in the low speed and high speed sections during the tension stroke, as shown in FIG. 2, the fluid generates the damping force while compressing the spring 240 upward through the passage 230 of the body body 220.

그리고 압축 행정시의 저속과 고속구간에서는 도 2의 실선으로 도시된 바와 같이, 유체가 통로(230)로 유입되고, 유입된 유체는 다판 디스크(250)중 디스크-S(252)의 내측면에 형성된 슬릿(252a)과 디스크(254)를 통과하면서 감쇠력을 발생시키게 된다.In the low speed and high speed sections of the compression stroke, as shown by the solid line of FIG. 2, the fluid flows into the passage 230, and the fluid flows into the inner surface of the disc-S 252 in the multi-plate disc 250. The damping force is generated while passing through the formed slit 252a and the disk 254.

이와 같이 다판 디스크(250)의 구성을 내측면에 슬릿(252a)이 형성된 디스크-S(252)를 먼저 적층 시킴으로서, 저속에서나 고속구간에서의 유체 흐름이 통로(230)를 통하여 다판 디스크(250)의 내측으로 일정하게 유입된다.Thus, by stacking the disk-S 252 in which the slits 252a are formed on the inner surface of the multi-layer disk 250, the fluid flow in the low speed or the high-speed section is transmitted through the passage 230. It is constantly introduced into the inside of.

따라서 항상 일정한 유로로 흐르는 유체는 산포의 발생이 줄어들게 되어 감쇠력 성능이 좋아진다.Therefore, the fluid always flowing in a constant flow path will reduce the occurrence of scattering and the damping force performance is improved.

또한, 종래에 발판(300)의 상부에 설치되어 수평 상태를 유지하던 디스크 링의 삭제로 원가절감을 이루게 된다.In addition, the cost reduction is achieved by eliminating the disk ring, which is conventionally installed on the top of the scaffold 300 to maintain a horizontal state.

이상에서는 본 발명을 특정의 바람직한 실시 예에 대하여 도시하고 또한 설명하였으나, 본 발명은 상술한 실시 예에 한정되지 아니하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 이하 청구범위에 기재된 본 발명의 요지를 벗어남이 없이 다양한 변경실시가 가능할 것이다.Although the present invention has been illustrated and described with respect to certain preferred embodiments, the present invention is not limited to the above-described embodiments, and a person skilled in the art to which the present invention pertains has the present invention set forth in the claims below. Various modifications may be made without departing from the spirit of the invention.

이상에서 설명한 바와 같이 본 발명의 쇽 업소버의 바디밸브는, 바디밸브를 통과하는 오일이 일정한 유로를 가질 수 있도록 바디밸브의 구조를 개선함으로써, 유체의 산포 현상이 줄어들어 감쇠력 성능이 향상되는 효과가 있다.As described above, the body valve of the shock absorber of the present invention improves the structure of the body valve so that the oil passing through the body valve has a certain flow path, thereby reducing the dispersion of fluid and improving the damping force performance. .

또한, 디스크 링의 삭제로 원가절감을 이루는 효과가 있다.In addition, there is an effect of reducing the cost by eliminating the disk ring.

Claims (2)

내부관 하단의 발판 상부에 설치되며, 동심원상에 다수개의 통로가 형성된 바디몸체와, 상기 바디몸체의 하면에 설치되어 통로를 개폐시키는 다판 디스크를 구비하는 쇽 업소버의 바디밸브에 있어서,In the body valve of the shock absorber is installed on the upper foot of the inner tube, the body body having a plurality of passages formed on the concentric circle, and a multi-plate disk provided on the lower surface of the body body to open and close the passage, 상기 다판 디스크는 순차적으로 디스크-S와, 복수의 디스크로 설치되고;The multi-disc disk is sequentially provided with a disk-S and a plurality of disks; 상기 디스크-S는, 내측면으로 개방된 슬릿이 원주 방향으로 다수개 형성되는 것을 특징으로 하는 쇽 업소버의 바디밸브.The disk-S, the shock absorber body valve is characterized in that a plurality of slits opened in the inner surface is formed in the circumferential direction. 제 1 항에 있어서,The method of claim 1, 상기 디스크는, 상기 발판의 상부에 설치되어 바디몸체의 수평 상태를 유지할 수 있도록 한 것을 특징으로 하는 쇽 업소버의 바디밸브.The disk, the shock absorber body valve, characterized in that installed on top of the scaffold to maintain a horizontal state of the body body.
KR1020020080217A 2002-12-16 2002-12-16 Shock Absorber Body Valve Expired - Fee Related KR100757808B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010036508A1 (en) * 2008-09-26 2010-04-01 Tenneco Automotive Operating Company Inc. High velocity compression damping valve
US9285011B2 (en) 2008-09-26 2016-03-15 Tenneco Automotive Operating Company Inc. High velocity compression damping valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959540U (en) 1982-10-14 1984-04-18 トヨタ自動車株式会社 Hydraulic shock absorber for vehicles
KR100415459B1 (en) * 1998-12-02 2004-04-21 주식회사 만도 Damping Force Variable Shock Absorber
KR100478923B1 (en) * 2000-12-27 2005-03-28 주식회사 만도 Valve use in shock absorber
KR200294596Y1 (en) 2002-08-10 2002-11-08 대우정밀 주식회사 Base valve assembly of shock absober for auto mobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010036508A1 (en) * 2008-09-26 2010-04-01 Tenneco Automotive Operating Company Inc. High velocity compression damping valve
US9033121B2 (en) 2008-09-26 2015-05-19 Tenneco Automotive Operating Company Inc. High velocity compression damping valve
US9285011B2 (en) 2008-09-26 2016-03-15 Tenneco Automotive Operating Company Inc. High velocity compression damping valve

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