KR20020093226A - Base cap for use in a shock absorber - Google Patents

Base cap for use in a shock absorber Download PDF

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Publication number
KR20020093226A
KR20020093226A KR1020010031681A KR20010031681A KR20020093226A KR 20020093226 A KR20020093226 A KR 20020093226A KR 1020010031681 A KR1020010031681 A KR 1020010031681A KR 20010031681 A KR20010031681 A KR 20010031681A KR 20020093226 A KR20020093226 A KR 20020093226A
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KR
South Korea
Prior art keywords
base
base cap
shock absorber
base valve
cap
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KR1020010031681A
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Korean (ko)
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KR100495167B1 (en
Inventor
정철원
권숙
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주식회사 만도
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Priority to KR10-2001-0031681A priority Critical patent/KR100495167B1/en
Publication of KR20020093226A publication Critical patent/KR20020093226A/en
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Publication of KR100495167B1 publication Critical patent/KR100495167B1/en

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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
    • F16F9/38—Covers for protection or appearance
    • 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
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • F16F9/3242—Constructional features of cylinders of cylinder ends, e.g. caps
    • 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
    • F16F9/3271—Assembly or repair

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

Abstract

PURPOSE: A base cap for a shock absorber is provided to improve the placement efficiency of a base valve by installing a placing recess for a protruded leg of the base valve on the inner face of a base cap. CONSTITUTION: A base cap(150) is installed on the lower end portion of an outer pipe(110). An annular placing recess(152) is formed on the inner face of the base cap. A base valve(140) is installed in the lower end of an inner pipe(120). Many protruded legs(144) are formed on the lower face of the base valve. When the inner pipe assembled with the base valve is inserted to the outer pipe, the protruded legs of the base valve are placed in the placing recess of the base cap. Since the protruded legs of the base valve are stably placed in the placing recess, the stability in the assembling of the base valve and the base cap is improved.

Description

쇽 업소버의 베이스 캡{BASE CAP FOR USE IN A SHOCK ABSORBER}베이스 Base cap of absorber {BASE CAP FOR USE IN A SHOCK ABSORBER}

본 발명은 쇽 업소버의 베이스 캡에 관한 것으로서, 더욱 상세하게는 저장실의 오일이 내부관으로 유동되도록 쇽 업소버의 하부에 장착된 베이스 밸브와 그 하부에 압입 설치되는 베이스 캡에 관한 것이다.The present invention relates to a base cap of a shock absorber, and more particularly, to a base valve mounted on the lower portion of the shock absorber so as to flow oil into the inner tube and a base cap press-fitted to the lower portion of the shock absorber.

일반적으로 쇽 업소버(shock absorber)는 차축과 차체 사이에 설치되어 차량의 주행시 차축이 노면으로부터 받는 진동이나 충격을 흡수하여 승차감을 향상시키는 방진, 완충장치로서, 그 내부는 가스 및 오일 등의 충진물이 채워져 감쇠력을증대시킬 수 있도록 마련되는데, 통상적으로 오일이 충진된 유압식 쇽 업소버가 많이 사용된다.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. It is filled to increase damping force, and oil-filled hydraulic shock absorbers are commonly used.

도 1에 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.As shown in FIG. 1, the conventional shock absorber 1 includes an inner tube 20 filled with oil, an outer tube 10 half filled with oil, and one end inside the inner tube 20. Inserted into 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 베이스 밸브(21)가 설치되며, 그 하부에는 베이스 캡(25)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 ( The central axis is opened so that the 30 can extend to the outside, and a base valve 21 through which oil flows into the storage chamber 15 and the inner tube 20 is installed below the base. The cap 25 is press-fitted. 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).

이와 같이 구성된 쇽 업소버에서 베이스 밸브(21)의 조립은, 외부관(10)의 하단부에 베이스 캡(25)을 압입시켜 용접한다.In the shock absorber configured as described above, the base valve 21 is assembled by pressing the base cap 25 to the lower end of the outer tube 10.

그리고 내부관(20)의 하단에 미리 조립되어 있는 베이스 밸브(21)의 조립체를 외부관(10)의 하부까지 삽입하고 오일을 주입하게 된다.And the assembly of the base valve 21, which is preassembled at the lower end of the inner tube 20, is inserted into the lower portion of the outer tube 10 and oil is injected.

그러나 베이스 밸브(21)와 베이스 캡(25)과의 조립에 있어서, 내면이 곡면 형상을 가지는 베이스 캡(25)에 베이스 밸브(21)를 안착시키기 위하여 상기 베이스 밸브(21)의 돌출발(22a) 하면을 대응되는 곡면 형상으로 가공하여 안착시켰다.However, in assembling the base valve 21 and the base cap 25, the protruding foot 22a of the base valve 21 to seat the base valve 21 on the base cap 25 having an inner surface curved surface. The bottom surface was machined into a corresponding curved shape and seated.

이로써 돌출발(22a)이 곡면부에 위치되므로 안착되는 베이스 밸브(21)의 조립 안착성이 저하되는 등의 문제점이 있었다.As a result, since the protruding foot 22a is positioned at the curved portion, there is a problem such that the assembly stability of the base valve 21 to be seated is lowered.

본 발명은 상술한 바와 같은 종래의 문제점을 해결하기 위한 것으로서, 베이스 캡의 내측면에 베이스 밸브의 돌출발이 안착될 수 있는 안착홈을 설치함으로서, 베이스 밸브의 안착성을 향상시킨 쇽 업소버의 베이스 캡을 제공하는데 그 목적이 있다.The present invention is to solve the conventional problems as described above, by installing a mounting groove that can be mounted on the inner side of the base cap protruding foot, the base of the shock absorber to improve the seating performance of the base valve The purpose is to provide a cap.

상기의 목적을 달성하기 위하여 본 발명은, 외부관과 내부관의 하단에 베이스 밸브와 같이 조립되는 쇽업소버의 베이스 캡에 있어서; 상기 베이스 밸브의 돌출발이 안착되도록 내곡면에 환형의 안착홈이 형성된 것을 특징으로 하는 쇽 업소버의 베이스 캡을 제공한다.In order to achieve the above object, the present invention, in the base cap of the shock absorber is assembled as a base valve on the lower end of the outer tube and the inner tube; It provides a shock absorber base cap characterized in that the annular seating groove is formed on the inner curved surface so that the protruding foot of the base valve is seated.

도 1은 종래 쇽 업소버의 베이스 캡을 확대 도시한 단면도.1 is an enlarged cross-sectional view of a base cap of a conventional shock absorber.

도 2는 본 발명에 따른 쇽 업소버의 베이스 캡을 확대 도시한 단면도.Figure 2 is an enlarged cross-sectional view of the base cap 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 : 쇽 업소버 110 : 외부관100: shock absorber 110: outer tube

120 : 내부관 130 : 피스톤 로드120: inner tube 130: piston rod

140 : 베이스 밸브 144 : 돌출발140: base valve 144: protruding foot

150 : 베이스 캡 152 : 안착홈150: base cap 152: seating groove

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 베이스 캡을 확대 도시한 단면도이다.Figure 2 is an enlarged cross-sectional view of the base cap of the shock absorber according to the present invention.

본 발명에 따른 쇽 업소버의 베이스 캡은, 도 2에 도시되어 있는 바와 같이, 오일이 가득 채워진 내부관(120)과 이 내부관(120)의 외측으로는 오일이 절반정도 채워진 외부관(110), 그리고 일단은 내부관(120)의 내측으로 삽입되어 상, 하 이동 가능하게 설치되고 타단은 외측으로 연장되는 피스톤 로드(130)가 마련된다.As shown in FIG. 2, the base cap of the shock absorber according to the present invention has an oil filled inner tube 120 and an outer tube 110 filled with oil to the outside of the inner tube 120. And, one end is inserted into the inner tube 120 is installed so as to move up and down, and the other end is provided with a piston rod 130 extending outward.

상기 내부관(120)의 원통관 하단에는 베이스 밸브(140)가 설치된다.The base valve 140 is installed at the lower end of the cylindrical tube of the inner tube 120.

상기 베이스 밸브(140)의 하면에는 원주 방향으로 일정 간격씩 돌출된 다수개의 돌출발(144)이 형성된다.A plurality of protruding feet 144 protruding at a predetermined interval in the circumferential direction is formed on the lower surface of the base valve 140.

상기 돌출발(144)의 저면은 평탄면으로 형성된다.The bottom of the protruding foot 144 is formed as a flat surface.

그리고 외부관(110)의 하단부에 용접 설치되는 베이스 캡(150)은, 그 형상이 원주면을 따라 내측에서 외측으로 다수 굴곡되어 형성된다.And the base cap 150 welded to the lower end part of the outer pipe | tube 110 is formed in the shape bent a lot from the inner side to the outer side along the circumferential surface.

그 내곡면에는 상기 베이스 밸브(140)의 돌출발(144)이 안착되는 위치에 환형의 안착홈(152)이 형성된다.The inner curved surface is formed with an annular mounting groove 152 at the position where the protruding foot 144 of the base valve 140 is seated.

상기 안착홈(152)은 내부관(120)의 오일이 베이스 밸브(140)를 지나 외부관(110)으로 유입되는 공간 즉, 유로를 막지 않는 범위에서 돌출발(144)의 일부만을 수용할 수 있는 깊이로 형성된다.The seating groove 152 may accommodate only a part of the protruding foot 144 in a range in which oil of the inner tube 120 passes through the base valve 140 to the outer tube 110, that is, not blocking the flow path. Is formed to a depth.

이와 같이 구성된 본 발명에 따른 쇽 업소버의 베이스 캡의 조립은 다음과 같다.The assembly of the base cap of the shock absorber according to the present invention configured as described above is as follows.

먼저, 외부관(110)의 하단부에 베이스 캡(150)을 용접 설치한다.First, the base cap 150 is welded to the lower end of the outer tube 110.

그리고 상기 외부관(110)의 내측에 외부관(110)과 소정간격 이격 설치되는 내부관(120)의 하단에는 베이스 밸브(140)가 압입 조립된다.The base valve 140 is press-assembled at the lower end of the inner tube 120 which is installed at a predetermined interval apart from the outer tube 110 inside the outer tube 110.

상기 베이스 밸브(140)가 조립된 내부관(120)을 외부관(110)에 삽입한다.The inner tube 120 to which the base valve 140 is assembled is inserted into the outer tube 110.

이 때 베이스 밸브(140)의 돌출발(144)은 상기 베이스 캡(150)의 안착홈(152)에 안착된다.At this time, the protruding foot 144 of the base valve 140 is seated in the seating groove 152 of the base cap 150.

이처럼 베이스 밸브(140)의 돌출발(144)이 안착홈(152)에 안정적으로 안착 조립됨으로서 베이스 밸브(140)와 베이스 캡(150)간의 조립 안정성을 향상시킨다.As such, the protruding foot 144 of the base valve 140 is stably seated and assembled in the seating groove 152, thereby improving assembly stability between the base valve 140 and the base cap 150.

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 발명 쇽 업소버의 베이스 캡에 의하면, 베이스 캡의 내측면에 베이스 밸브의 돌출발이 안착될 수 있는 안착홈을 설치함으로서, 베이스 밸브와 베이스 캡과의 안착성을 향상시켜 제품의 안정성이 증가되는 효과가 있다.As described above, according to the base cap of the shock absorber of the present invention, by installing a seating groove in which the protruding foot of the base valve can be seated on the inner side of the base cap, the seat valve is improved in the seating ability of the base valve There is an effect of increasing the stability of.

Claims (1)

외부관과 내부관의 하단에 베이스 밸브와 같이 조립되는 쇽업소버의 베이스 캡에 있어서;In the base cap of the shock absorber is assembled to the lower end of the outer tube and the inner tube as a base valve; 상기 베이스 밸브의 돌출발이 안착되도록 내곡면에 환형의 안착홈이 형성된 것을 특징으로 하는 쇽 업소버의 베이스 캡.The base cap of the shock absorber, characterized in that the annular mounting groove is formed on the inner curved surface so that the protruding foot of the base valve is seated.
KR10-2001-0031681A 2001-06-07 2001-06-07 Base cap for use in a shock absorber KR100495167B1 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5521975Y2 (en) * 1975-08-09 1980-05-26
JPS55104650U (en) * 1979-01-16 1980-07-22
KR19980053379U (en) * 1996-12-31 1998-10-07 양재신 Fuel cap fixing structure
KR100308760B1 (en) * 1998-08-14 2002-08-22 만도공조 주식회사 Solenoid valve

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