KR100276364B1 - The gas injection valve for the gas filled type shock absorber - Google Patents

The gas injection valve for the gas filled type shock absorber Download PDF

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Publication number
KR100276364B1
KR100276364B1 KR1019970049338A KR19970049338A KR100276364B1 KR 100276364 B1 KR100276364 B1 KR 100276364B1 KR 1019970049338 A KR1019970049338 A KR 1019970049338A KR 19970049338 A KR19970049338 A KR 19970049338A KR 100276364 B1 KR100276364 B1 KR 100276364B1
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KR
South Korea
Prior art keywords
gas
sealing member
shock absorber
injection valve
vehicle
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KR1019970049338A
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Korean (ko)
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KR19990027006A (en
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조기행
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밍루
주식회사만도
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/062—Bi-tubular units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/362—Combination of sealing and guide arrangements for piston rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2238/00—Type of springs or dampers
    • F16F2238/02—Springs

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

Abstract

PURPOSE: A valve for injecting gas is provided to improve the durability by easily injecting the gas. CONSTITUTION: An orifice(7a) is formed in a guide member(7) to be connected with a gas chamber. A sealing member(9) is supported by a spring(11) to open and close the orifice(7a) by contacting with an external tube(3). A check valve(9d) is protruded under the sealing member(9) not to expose gas inside the gas chamber. An upper sill portion(9a) and a lower sill portion(9b) are formed in the sealing member(9) to increase the sealing effect with a piston rod(5). A core portion(9c) is combined with the sealing member(9) to prevent a transformation of the sealing member(9). A protrusion for sealing(9f) is formed in the upper part of the sealing member(9) to prevent a leakage of the gas. Concave spring seats(9e,7b) are formed in the sealing member(9) and the guide member(7).

Description

차량용 가스봉입형 쇽업소버의 가스주입용 밸브Gas injection valve for vehicle gas sealed shock absorber

본 발명은 차량용 가스봉입형 쇽업소버에 관한 것으로서, 보다 상세하게는 가스를 용이하게 주입할 수 있게 한 차량용 가스봉입형 쇽업소버의 가스주입용 밸브에 관한 것이다.The present invention relates to a gas-filled shock absorber for a vehicle, and more particularly, to a gas injection valve of a gas-filled shock absorber for a vehicle that can easily inject gas.

쇽업소버는 자동차의 주행중 스프링이 받는 충격에 의해 발생하는 고유진동을 흡수하여 승차감을 좋게 하기 위해 장치되어 있는 것이다.The shock absorber is designed to absorb the natural vibration generated by the impact of the spring while driving the car to improve ride comfort.

종래의 가스봉입형 쇽업소버는 단동형과 복동형으로 구분되는 바, 단동형 쇽업소버는 실린더 내를 상하로 이동할 수 있는 프리피스톤이 설치되어 있으며, 그 하부에는 격리된 가스 챔버가 형성되어 고압가스가 봉입되어 있다.Conventional gas-filled shock absorber is divided into single-acting and double-acting type bar, single-acting shock absorber is provided with a pre-piston to move up and down inside the cylinder, the lower part is formed with an isolated gas chamber is a high-pressure gas Is enclosed.

피스톤부에는 신장, 압축시 모두 감쇠력을 발생시키는 피스톤밸브가 설치되어 있다.The piston section is provided with a piston valve that generates a damping force during both expansion and compression.

이러한 구성에 의한 작동은 압축시, 피스톤 로어 챔버의 오일이 피스톤부의 밸브를 밀어 열면서 피스톤 어퍼 챔버로 흐르는데, 오일의 유동 저항이 있기 때문에 상기 피스톤부의 밸브를 통해 오일이 흐르는 동안 열이 발생하며 이에 따라 감쇠력이 작용하게 되는 것이다.The operation of this configuration is that during the compression, the oil in the piston lower chamber flows into the piston upper chamber while pushing the valve of the piston part, and because of the flow resistance of the oil, heat is generated while the oil flows through the valve of the piston part. Therefore, the damping force is to act.

신장시에는 피스톤 어퍼 챔버의 오일이 피스톤부의 밸브를 밀어 열면서 피스톤 로어 챔버로 흐르는데, 이 때 오일의 유동저항 때문에 상기 피스톤부의 밸브를 통해 오일이 흐르는 동안 열이 발생하며 이에 따라 감쇠력이 작용하게 되는 것이다.At the time of expansion, the oil in the piston upper chamber flows into the piston lower chamber while pushing the valve of the piston part, and heat is generated while oil flows through the valve of the piston part due to the flow resistance of the oil. will be.

한편, 복동형 쇽업소버는 내부 및 외부튜브로 구성된 이중 튜브형 하우징과, 내부 튜브에서 작동하며 그 내부를 두 개의 상부 및 하부 오일실로 분할하는 피스톤밸브와, 피스톤밸브에 고착되어 상부 오일실을 통해 외부로 연장되는 프리피스톤과, 내부튜브와 외부튜브 사이에 한정되어 그 내부에 오일과 가스를 함유하고 있는 가스실과, 하부오일실을 가스실의 가스 함유부에 연통시켜주는 보디밸브, 외부로부터 하우징을 밀봉하며 기기를 관통하여 피스톤 로드를 활주가능하게 하는 밀봉부재 등의 구성으로 이루어져 있다.Meanwhile, the double acting shock absorber has a double tubular housing consisting of an inner and an outer tube, a piston valve operating in the inner tube and dividing the inside into two upper and lower oil chambers, and fixed to the piston valve to the outside through the upper oil chamber. A gas valve containing oil and gas inside the prepiston extending between the inner tube and the outer tube, a body valve for connecting the lower oil chamber to the gas containing portion of the gas chamber, and sealing the housing from the outside. And a sealing member for sliding the piston rod through the device.

상기와 같이 구성된 종래 가스봉입형 쇽업소버는 튜브 내에 가스를 주입할 때에 튜브의 일측에 구멍을 형성하여 가스를 주입시킨 후, 용접으로 밀봉하는 방법을 사용하였다.Conventional gas-filled shock absorber configured as described above used a method of forming a hole in one side of the tube when injecting gas into the tube, injecting gas, and then sealing by welding.

그러나, 이와 같은 용접에 의한 밀봉 방법은 그 작업성이 나쁘고, 용접 작업시 튜브내부에 이물질이 유입되기 쉬우므로 제품의 내구성이 저하된다는 문제점이 있었다.However, such a sealing method by welding has a problem in that its workability is poor, and foreign matter easily flows into the tube during the welding operation, and thus the durability of the product is lowered.

본 발명은 상기와 같은 문제점을 감안하여 안출된 것으로서, 본 발명의 목적은 가스를 용이하게 주입할 수 있게하며, 내구성을 향상시킬 수 있는 차량용 가스 봉입형 쇽업소버의 가스 주입용 밸브를 제공하는 데 있다.The present invention has been made in view of the above problems, and an object of the present invention is to provide a gas injection valve for a gas-filled shock absorber for a vehicle that can easily inject gas and improve durability. have.

상기와 같은 목적을 실현하기 위한 본 발명의 특징은 가스가 주입되는 방향으로만 유체의 흐름을 가능하게 하는 체크밸브를 설치하여 가스 주입 후, 별도의 밀봉작업을 하지 않아도 된다는 데 있다.A feature of the present invention for achieving the above object is that it is not necessary to perform a separate sealing operation after the gas injection by installing a check valve that enables the flow of fluid only in the direction in which gas is injected.

이를 실현하기 위한 본 발명의 구성적 특징은 가스실을 구성하도록 소정의 간격을 두고 설치된 내부 및 외부튜브와, 상기 외부튜브를 밀봉하도록 설치되는 밀봉부재와, 상기 내부튜브 내에서 신축 가능하도록 상기 밀봉부재를 관통하여 설치된 피스톤 로드와, 상기 피스톤 로드의 신축운동을 가이드하는 가이드부재를 포함하는 차량용 가스봉입형 쇽업소버에 있어서, 상기 가이드부재에는 상기 가스실에 연통하도록 오리피스가 형성되고, 상기 밀봉부재는 외부튜브와 접촉되어 밀봉가능하도록 상기 가이드부재에 설치된 스프링에 지지되며, 상기 밀봉부재는 오리피스를 개폐하도록 소정 구간 이동 가능하게 설치된 것을 특징으로 한다.The constitutional features of the present invention for realizing this include an inner and an outer tube installed at predetermined intervals to form a gas chamber, a sealing member installed to seal the outer tube, and the sealing member to be stretchable within the inner tube. In a gas-filled shock absorber for a vehicle comprising a piston rod installed to pass through and a guide member for guiding the expansion and contraction of the piston rod, the guide member is formed with an orifice to communicate with the gas chamber, the sealing member is external It is supported by a spring installed in the guide member to be in contact with the tube sealable, the sealing member is characterized in that it is installed to move a predetermined section to open and close the orifice.

도 1은 본 발명에 의한 가스봉입형 쇽업소버의 가스주입용 밸브를 도시한 것으로, 가스주입 전의 상태를 나타내는 도면,1 shows a gas injection valve of a gas-filled shock absorber according to the present invention, which shows a state before gas injection;

도 2는 본 발명에 의한 가스봉입형 쇽업소버의 가스주입용 밸브를 도시한 것으로, 가스주입 후의 상태를 나타내는 도면이다.Fig. 2 shows a gas injection valve of the gas-filled shock absorber according to the present invention, and shows a state after gas injection.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1: 내부튜브 3: 외부튜브 5: 피스톤 로드1: inner tube 3: outer tube 5: piston rod

7: 가이드부재 7ａ: 오리피스 9: 밀봉부재7: guide member 7a: orifice 9: sealing member

11: 스프링11: spring

이하, 본 발명의 목적을 실현할 수 있는 가장 바람직한 실시예를 당업자가 용이하게 실시할 수 있을 정도로 상세히 설명한다.Best Mode for Carrying Out the Invention The most preferred embodiments that can realize the objects of the present invention will now be described in detail to enable those skilled in the art to easily implement.

본 실시예에 의한 차량용 가스봉입형 쇽업소버는 통합형 쇽업소버에 적용되는 바, 상기 통합형 쇽업소버의 전체적인 구성은 종래 기술을 통하여 전술한 바와 같아 생략하며, 본 발명의 특징부인 가스 주입용 밸브의 구조에 대해서만 설명한다.The gas-filled shock absorber for a vehicle according to the present embodiment is applied to an integrated shock absorber, and the overall configuration of the integrated shock absorber is omitted as described above through the prior art, and the structure of the gas injection valve is a feature of the present invention. Explain only about.

도 1은 본 발명에 의한 가스주입용 밸브의 내부구조를 나타내는 도면으로서, 가스주입 전의 상태를 나타내는 것이고, 도 2는 가스주입 후의 상태를 나타내는 도면이다.1 is a view showing the internal structure of a gas injection valve according to the present invention, showing a state before gas injection, and FIG. 2 is a view showing a state after gas injection.

도시된 바와 같이 하우징을 구성하는 내부 및 외부튜브(1,3)는 가스실(Ｒ)을 구성하도록 소정의 간격을 두고 설치되어 있는 바, 상기 외부튜브(3)의 내부에는 피스톤 로드(5)의 신축운동을 가이드하는 가이드부재(7)가 설치되어 있으며, 상기 피스톤 로드(5)를 통하여 하우징의 내부 가스가 유출되지 않도록 상기 피스톤 로드(5)에는 밀봉부재(9)가 축설되어 있는데, 상기 밀봉부재(9)의 외주하단부에는 전주에 걸쳐 상기 가이드부재(7)에 접설되도록 연질재의 체크밸브(9ｄ)가 돌설되어서 가스실(Ｒ)에 있던 가스가 외부로 누출되지 않도록 구성된다.As shown, the inner and outer tubes 1 and 3 constituting the housing are installed at predetermined intervals so as to constitute the gas chamber R, and the inner side of the outer tube 3 of the piston rod 5 A guide member 7 for guiding the stretching movement is installed, and a sealing member 9 is installed in the piston rod 5 so that the gas inside the housing does not flow out through the piston rod 5. The outer periphery of the member 9 is configured so that the check valve 9d of the soft material protrudes so as to be in contact with the guide member 7 over the entire circumference so that the gas in the gas chamber R does not leak to the outside.

또한, 상기 밀봉부재(9)는 피스톤로드(5)와의 접촉부에서의 기밀효과를 높이기 위해 그 내주 상면과 내주하면에 상턱부(9ａ)와 하턱부(9ｂ)가 각각 형성되어 있으며, 상기 밀봉부재(9)의 변형을 막기 위해 그 내부에는 ㄴ자의 단면형상을 가지며 금속재와 같이 경도가 우수한 재질로 된 심부(9ｃ)가 체합되어 되어 있다.In addition, the sealing member 9 has an upper jaw portion 9 a and a lower jaw portion 9 ′ formed on the inner circumferential upper surface and the inner circumferential surface of the sealing member 9 so as to enhance the airtight effect at the contact portion with the piston rod 5. In order to prevent deformation of (9), a core portion 9c having a cross-sectional shape of the letter N and made of a material having excellent hardness such as a metal material is incorporated.

한편, 상기 외부튜브(3)의 상부 내측면과 상기 가이드부재(7)의 상부면 사이에는 상기 밀봉부재(9)가 소정 구간 이동 가능하도록 여유있는 공간을 형성하는데, 상기 밀봉부재(9)는 그 사이에 개재되는 스프링(11)에 의해 지지되어 상기 외부튜브(3)의 상부 내측면에 접촉되어 상기 외부튜브(3)를 밀봉하고 있으며, 상기 스프링(11)이 잘 착설될 수 있도록 상기 밀봉부재(9)와 가이드부재(7)의 상기 스프링(11)에 접촉되는 부위에는 내측으로 오목한 형상으로된 스프링시트(9ｅ)(7ｂ)가 각각 형성되어 있다. 또한, 상기 외측튜브(3)와 접촉되는 상기 밀봉부재(9)의 상단부에는 가스의 누설을 방지하기 위해 실링용 돌기(9ｆ)가 형성되도록 할 수도 있다.Meanwhile, a space is formed between the upper inner surface of the outer tube 3 and the upper surface of the guide member 7 so that the sealing member 9 can move a predetermined section. The sealing member 9 is It is supported by a spring 11 interposed therebetween and in contact with the upper inner surface of the outer tube 3 to seal the outer tube 3, the sealing so that the spring 11 can be installed well On the part of the member 9 and the guide member 7, which are in contact with the spring 11, spring seats 9e (7 ') each having an inwardly concave shape are formed. In addition, the upper end of the sealing member 9 in contact with the outer tube 3 may be formed with a sealing projection (9 실) to prevent the leakage of gas.

한편, 상기 가이드부재(7)에는 오리피스(7ａ)가 형성되어 있는데, 이는 상기 외부튜브(3)와 내부튜브(1)의 사이에 구성되는 가스실(Ｒ)에 연통되어 상기 밀봉부재(9)가 상하로 이동됨에 따라 개폐되도록 되어 있다.On the other hand, the guide member 7 is formed with an orifice 7a, which is in communication with the gas chamber (R) formed between the outer tube (3) and the inner tube (1) is the sealing member (9) It is opened and closed as it moves up and down.

상기와 같이 구성된 본 실시예에 의한 차량용 가스봉입식 쇽업소버의 가스 주입용 밸브구조는 다음과 같이 작동된다.The gas injection valve structure of the vehicle gas-filled shock absorber according to the present embodiment configured as described above operates as follows.

외부에서 가스를 주입하면 밀봉부재(9)에 가스압이 가해져 스프링(11)을 압축시킨다. 이때, 상기 밀봉부재(9)는 하향되어 외부튜브(3)와 소정의 간극이 생기도록 이격된다.When gas is injected from the outside, a gas pressure is applied to the sealing member 9 to compress the spring 11. In this case, the sealing member 9 is downwardly spaced apart from the outer tube 3 so as to have a predetermined gap.

이에 따라, 가스실(Ｒ)에 가스가 주입되는 바, 어느 정도 가스가 주입되면 가스실(Ｒ)에 주입된 가스압력과 스프링(11)의 탄성력에 의해 상기 밀봉부재(9)는 다시 상향되어 외부튜브(3)에 접촉되어 밀봉한다.Accordingly, the gas is injected into the gas chamber (R). When the gas is injected to some extent, the sealing member (9) is raised upward again by the gas pressure injected into the gas chamber (R) and the elastic force of the spring (11). Seal in contact with (3).

여기서, 상기 밀봉부재의 선단은 돌출되게 하는 것이 바람직하다. 즉, 상기 밀봉부재(9)와 외부튜브(3)에 간극을 두어 유로를 형성케하는 것이 가스의 주입을 용이하게 한다.Here, the tip of the sealing member is preferably protruded. That is, forming a flow path with a gap between the sealing member 9 and the outer tube 3 facilitates the injection of gas.

상기와 같이 구성된 본 실시에에 의한 차량용 가스봉입식 쇽업소버는 별도로 가스 주입용 밸브가 설치됨에 따라 가스 주입이 용이하다.Gas-sealed shock absorber for vehicles according to the present embodiment configured as described above is easy to inject gas as the gas injection valve is installed separately.

상기와 같이 구성된 본 발명에 의한 가스봉입형 쇽업쇼버의 가스주입용 밸브에 의하면, 그 구조가 간단하여 저렴한 가격으로 설치할 수 있으며, 쇽업소버 내부에 가스봉입후에 가스봉입구를 용접하여 밀봉할 필요가 없게 되므로, 작업성이 양호하게 되며 튜브내에 이물질이 유입되지 않게 되므로 제품의 내구성 및 신뢰도가 향상된다는 이점이 있다.According to the gas injection valve of the gas-filled shock absorber according to the present invention configured as described above, the structure is simple and can be installed at low cost, and it is necessary to seal the gas inlet after welding the gas in the shock absorber. Since there is no workability is good and foreign matter does not flow into the tube there is an advantage that the durability and reliability of the product is improved.

Claims (5)

가스실(Ｒ)을 구성하도록 소정의 간격을 두고 설치된 내부 및 외부튜브(1)(3)와, 상기 외부튜브(3)를 밀봉하도록 설치되는 밀봉부재(9)와, 상기 내부튜브(1) 내에서 신축 가능하도록 상기 밀봉부재(9)를 관통하여 설치된 피스톤 로드(5)와, 상기 피스톤 로드(5)의 신축운동을 가이드하는 가이드부재(7)를 포함하는 차량용 가스봉입형 쇽업소버에 있어서,Inner and outer tubes (1) and (3) installed at predetermined intervals to form a gas chamber (R), a sealing member (9) installed to seal the outer tube (3), and in the inner tube (1) In the gas-filled shock absorber for a vehicle comprising a piston rod (5) installed to penetrate the sealing member (9) and a guide member (7) for guiding the expansion and contraction movement of the piston rod (5) so as to be extensible. 상기 가이드부재(7)에는 상기 가스실(Ｒ)에 연통하도록 오리피스(7ａ)가 형성되고, 상기 밀봉부재(9)는 외부튜브(3)와 접촉되어 밀봉가능하도록 상기 가이드부재(7)에 설치된 스프링(11)에 지지되며, 상기 밀봉부재(9)는 오리피스(7ａ)를 개폐하도록 소정 구간 이동 가능하게 설치된 것을 특징으로 하는 차량용 가스봉입형 쇽업소버의 가스주입용 밸브.An orifice 7a is formed in the guide member 7 so as to communicate with the gas chamber R, and the sealing member 9 is provided in the guide member 7 so as to be sealable by contact with the outer tube 3. A gas injection valve for a gas-filled shock absorber for a vehicle, which is supported by (11), wherein the sealing member (9) is installed to be movable in a predetermined section to open and close the orifice (7a). 제 1항에있어서, 상기 밀봉부재(9)의 외주 하단부에는 전주에 걸쳐 상기 가이드부재(7)에 접설되도록 연질재의 체크밸브(9ｄ)가 돌설되어서 가스실(Ｒ)에 있던 가스가 외부로 누출되지 않도록 구성된 것을 특징으로 하는 차량용 가스봉입형 쇽업소버의 가스주입용 밸브.2. A check valve (9d) of a soft material protrudes from the outer periphery lower end of the sealing member (9) over the entire circumference so that the gas in the gas chamber (R) is not leaked to the outside. Gas injection valve of the gas-filled shock absorber for vehicles, characterized in that configured to not be. 제 1 항에 있어서, 상기 밀봉부재(9)는 피스톤로드(5)와의 접촉부에서의 기밀효과를 높이기 위해 그 내주 상면과 내주하면에 상턱부(9ａ)와 하턱부(9ｂ)가 각각 형성되어 있으며, 상기 밀봉부재(9)의 변형을 막기 위해 그 내부에는 ㄴ자의 단면형상을 가지며 금속재와 같이 경도가 우수한 재질로 된 심부(9ｃ)가 체합되어있는 것을 특징으로 하는 차량용 가스봉입형 쇽업소버의 가스주입용 밸브.2. The sealing member (9) has an upper jaw portion (9a) and a lower jaw portion (9ｂ) respectively formed on the upper and inner circumference of the inner circumference of the sealing member (9) to enhance the airtight effect at the contact portion with the piston rod (5). In order to prevent deformation of the sealing member 9, the gas of the gas-filled shock absorber for the vehicle, characterized in that the core portion (9c) having a cross-sectional shape of the letter N and made of a material having excellent hardness, such as a metal material is incorporated. Injection valve. 제 1 항 또는 제 2 항에 있어서, 상기 외측튜브(3)와 접촉되는 상기 밀봉부재(9)의 상단부에는 가스의 누설을 방지하기 위해 실링용 돌기(9ｆ)가 형성된 것을 특징으로 하는 차량용 가스봉입형 쇽업소버의 가스주입용 밸브.3. The vehicle gas encapsulation according to claim 1 or 2, wherein a sealing protrusion 9 is formed at an upper end of the sealing member 9 in contact with the outer tube 3 to prevent leakage of gas. Gas injection valve of the type shock absorber. 제 1 항에 있어서, 상기 밀봉부재(9)와 가이드부재(7)의 상기 스프링(11)에 접촉되는 부위에는 내측으로 오목한 형상으로된 스프링시트(9ｅ)(7ｂ)가 각각 형성된 것을 특징으로 하는 차량용 가스봉입형 쇽업소버의 가스주입용 밸브.The method of claim 1, wherein the sealing member 9 and the guide member 7 is in contact with the spring 11, characterized in that the spring sheet (9e) (7 ｂ) having a concave shape inwardly formed respectively. Gas injection valve for vehicle gas sealed shock absorber.
KR1019970049338A 1997-09-27 1997-09-27 The gas injection valve for the gas filled type shock absorber KR100276364B1 (en)

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KR1019970049338A KR100276364B1 (en) 1997-09-27 1997-09-27 The gas injection valve for the gas filled type shock absorber

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