KR20020053591A - Structure for support head cap use in a shock absorber - Google Patents

Structure for support head cap use in a shock absorber Download PDF

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Publication number
KR20020053591A
KR20020053591A KR1020000083287A KR20000083287A KR20020053591A KR 20020053591 A KR20020053591 A KR 20020053591A KR 1020000083287 A KR1020000083287 A KR 1020000083287A KR 20000083287 A KR20000083287 A KR 20000083287A KR 20020053591 A KR20020053591 A KR 20020053591A
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KR
South Korea
Prior art keywords
upper cap
oil seal
shock absorber
cap
outer tube
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KR1020000083287A
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Korean (ko)
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KR100478908B1 (en
Inventor
김성민
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밍 루
주식회사 만도
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Priority to KR10-2000-0083287A priority Critical patent/KR100478908B1/en
Publication of KR20020053591A publication Critical patent/KR20020053591A/en
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Publication of KR100478908B1 publication Critical patent/KR100478908B1/en

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Classifications

    • 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
    • F16F9/54—Arrangements for attachment
    • 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
    • F16F2226/00—Manufacturing; Treatments
    • F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
    • F16F2226/045—Press-fitting

Abstract

PURPOSE: Supporting structure of an upper cap for a shock absorber is provided to increase the productivity by improving working efficiency, and to cut down expenses by reducing the weight with modifying the upper cap. CONSTITUTION: An inner pipe(120) is placed in an outer pipe(110), and a rod guide(140) is installed in the upper part of the inner pipe to guide movement of a piston rod(130). An oil seal(150) is mounted in the upper part of the rod guide to prevent oil leakage, and an upper cap(170) is installed in the upper part of the oil seal. An L-shaped bent part is formed in the upper part of the oil seal, and the bent part of the upper cap is supported by curling the end of the outer pipe. The upper cap is placed in the upper part of the oil seal, and fixed by assembling a stepped part of the upper cap with a press part of the outer pipe. The downward movement of the piston rod is restricted with pushing the upper cap by a bumper stopper(160), and the oil seal is protected with supporting load. Working efficiency is improved, and productivity is increased with installing the upper cap in the upper part of the outer pipe.

Description

쇽 업소버의 상부캡 지지구조{STRUCTURE FOR SUPPORT HEAD CAP USE IN A SHOCK ABSORBER}상부 Support structure for absorber upper cap {STRUCTURE FOR SUPPORT HEAD CAP USE IN A SHOCK ABSORBER}

본 발명은 쇽 업소버의 상부캡 지지구조에 관한 것으로서, 더욱 상세하게는 외부관 상단에 설치되는 캡의 형상 변경으로 제품 경량화 및 원가절감 효과를 갖는 쇽 업소버의 상부캡 지지구조에 관한 것이다.The present invention relates to a top cap support structure of a shock absorber, and more particularly, to a top cap support structure of a shock absorber having a weight reduction and cost reduction effect by changing the shape of the cap installed on the top of the outer tube.

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 감쇠력을 증대시킬 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 the damping force, and oil-filled hydraulic shock absorbers are commonly used.

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 외부관(10)은 밀폐된 중공관으로서 외부 하측에는 미도시된 차축과 연결될 수 있도록 하부 브래킷(11)이 마련되어 있다. 그리고 피스톤 로드(30)가 외부로 연장될 수 있도록 상단면의 중심축은 개구되어 있고, 그 내부에는 오일 누설을 방지할 수 있도록 오일씰(42)과 그 상단에 씌워져 결합되는 캡(44)이 설치된다. 그리고 오일씰(42)의 하부에는 피스톤 로드(30)를 지지 안내하는 로드 가이드(40)가 위치하고, 상기 로드 가이드(40)의 하부로는 내부관(20)이 이어진다.The outer tube 10 is a closed hollow tube is provided with a lower bracket 11 to be connected to the axle not shown in the lower side. And the central axis of the upper surface is open so that the piston rod 30 can extend to the outside, the inside of the cap 44 which is covered with the oil seal 42 and the upper end is installed so as to prevent oil leakage. . And the lower portion of the oil seal 42, the rod guide 40 for supporting the piston rod 30 is located, the lower portion of the rod guide 40 is the inner tube 20 is continued.

또, 외부관(10)의 외부 상측에는 피스톤 로드(30)의 상측 선단과 결합되어 이물질 유입을 방지하는 더스트 커버(13)가 설치된다. 그리고 상기 더스트 커버(13)의 내부에는 리바운드가 발생될 경우 상기 더스트 커버(13)와 외부관(10)의 부딪힘을 방지함과 동시에 충격 및 진동을 흡수할 수 있도록 고무재질의 범퍼스토퍼(50)가 위치한다. 상기 외부 상측에는 미도시된 차체와 결합될 수 있도록 상부브래킷(14)이 마련된다.In addition, a dust cover 13 is installed at an outer upper side of the outer tube 10 to be coupled to an upper end of the piston rod 30 to prevent foreign substances from entering. In addition, when the rebound is generated in the dust cover 13, a bumper stopper 50 made of rubber material may prevent bumping of the dust cover 13 and the outer tube 10 and absorb shock and vibration. Is located. The upper bracket 14 is provided on the outer upper side to be coupled to the vehicle body not shown.

상기에 따른 구성에서 캡(44)은, 차량의 풀 펌프시 피스톤 로드(30)가 하방향으로 이동되고, 그 이동이 클 경우 범퍼스토퍼(50)가 캡(44)의 상면을 누르게 되어, 하방향으로의 운동 제한과 동시에 하중을 지지하고 외부관(10) 상부의 오일씰(42)을 보호하기 위하여 형성된 것이다.In the above configuration, the cap 44 has the piston rod 30 moved downward when the vehicle is fully pumped, and when the movement thereof is large, the bumper stopper 50 presses the upper surface of the cap 44. It is formed to support the load and protect the oil seal 42 on the outer tube 10 at the same time with the movement in the direction.

그러나, 이와 같은 종래의 쇽 업소버의 캡을 설치하기 위해서는 외부관(10)의 상단을 벤딩하고, 그 상부에 외부관(10)을 일부 포함한 상태에서 압입 설치된 것으로서, 그 압입 공정이 까다로운 문제점이 있었다.However, in order to install the cap of the conventional shock absorber, the upper end of the outer tube 10 is bent and press-installed in a state in which the outer tube 10 is partially included therein, and the press-in process is difficult. .

본 발명은 상술한 바와 같은 종래의 문제점을 해결하기 위한 것으로서, 외부관 상단에 형상 변경된 상부캡을 설치함으로서, 작업을 용이하게 하고, 제품 경량화 및 원가절감 효과를 갖는 쇽 업소버의 상부캡의 지지구조를 제공하는데 그 목적이 있다.The present invention is to solve the conventional problems as described above, by installing a shape-modified upper cap on the top of the outer tube, to facilitate the work, the support structure of the upper cap of the shock absorber having the product weight and cost reduction effect The purpose is to provide.

상기의 목적을 달성하기 위하여 본 발명은, 피스톤 로드의 이동을 안내하는 로드 가이드를 외부관에 지지시킴과 동시에 상기 로드 가이드의 상부에 설치되는 오일씰을 외부의 충격으로부터 보호하는 상부캡을 상기 외부관에 지지시킴에 있어서; 상기 오일씰 상부 가장자리에 "ㄴ"자 형상의 절곡부가 환형으로 형성되고, 상기 외부관 단부가 내측으로 커링 가공되어 상기 상부캡의 절곡부를 가압 지지하는 것을 특징으로 하는 쇽 업소버의 상부캡 지지구조를 제공한다.In order to achieve the above object, the present invention, while supporting the rod guide for guiding the movement of the piston rod to the outer tube and at the same time the upper cap for protecting the oil seal installed on the upper portion of the rod guide from external impact In supporting; At the upper edge of the oil seal, a bent portion having a “b” shape is formed in an annular shape, and the outer tube end is curled inward to support the bent portion of the upper cap to provide an upper cap support structure of the shock absorber. do.

도 1은 종래 쇽 업소버를 도시한 단면도.1 is a cross-sectional view showing a conventional shock absorber.

도 2는 본 발명에 따른 쇽 업소버의 상부캡 지지구조를 도시한 단면도.Figure 2 is a cross-sectional view showing the upper cap support structure 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

112 : 압착부 120 : 내부관112: crimping portion 120: inner tube

130 : 피스톤 로드 132 : 피스톤 밸브130: piston rod 132: piston valve

140 : 로드 가이드 150 : 오일씰140: rod guide 150: oil seal

160 : 범퍼스토퍼 170 : 상부캡160: bumper stopper 170: upper cap

172 : 계단면172: staircase

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 상부캡 지지구조를 도시한 단면도이다.Figure 2 is a cross-sectional view showing the upper cap support structure of the shock absorber according to the present invention.

본 발명에 따른 쇽 업소버의 상부캡은, 도 2 에 도시되어 있는 바와 같이, 본 발명의 차량용 쇽 업소버(100)는, 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.The upper cap of the shock absorber according to the present invention, as shown in Figure 2, the vehicle shock absorber 100 of the present invention, the inner tube 120 filled with oil and the outer side of the inner tube 120 The oil is filled with the outer tube 110, and one end is inserted into the inner tube 120, the piston rod 130 is provided to be installed to move up, down and the other end to the outside.

상기 내부관(120)은 실린더 역할을 하는 중공의 원통관으로서, 외부관(110)의 내측에 외부관(110)과 소정간격 이격 되도록 설치되며, 그 상측 내부에는 피스톤 로드(130)의 이동을 안내해줄 수 있도록 그 내부에 로드 가이드(140)가 마련된다. 상기 로드 가이드(140)의 상부에는 오일의 누유를 막는 오일씰(150)이 설치되며, 그 상부에는, 본 발명인 상부캡(170)이 설치된다.The inner tube 120 is a hollow cylindrical tube serving as a cylinder, is installed to be spaced apart from the outer tube 110 by a predetermined interval inside the outer tube 110, the upper side inside the movement of the piston rod 130 The rod guide 140 is provided therein to guide the guide. An oil seal 150 that prevents leakage of oil is installed at an upper portion of the rod guide 140, and an upper cap 170 of the present invention is installed at an upper portion thereof.

상기 상부캡(170)은 "ㄴ"자 형상의 절곡부가 환형으로 설치된다. 그리고 상기 상부캡(170)의 절곡부의 일단에는 단차를 가진 계단면(172)이 형성되며, 상기 계단면(172)을 압입하여 고정을 이루도록 상기 외부관(110)의 끝단에 대응되게 형합되는 압착부(112)가 형성된다.The upper cap 170 has a bent portion of the "b" shape is installed in an annular shape. A stepped surface 172 having a step is formed at one end of the bent portion of the upper cap 170, and the stepped surface 172 is press-fitted to correspond to the end of the outer tube 110 to form a fixed pressure. A portion 112 is formed.

이와 같이 구성된 본 발명에 따른 쇽 업소버의 상부캡 지지구조의 조립은 다음과 같다.The assembly of the upper cap support structure of the shock absorber according to the present invention configured as described above is as follows.

상기 오일씰(150) 상부에 상부캡(170)을 덮듯이 위치시킨다. 그리고 위치된상부캡(170)의 고정을 위하여 상부캡(170)의 일단에 형성된 계단면(172)에 형합되도록 외부관(110)의 끝단을 벤딩시켜 압착부(112)로 압착하여 고정시킨다.The oil seal 150 is positioned to cover the upper cap 170 on the top. Then, the end of the outer tube 110 is bent to be fitted to the stepped surface 172 formed at one end of the upper cap 170 so as to be fixed to the upper cap 170, and then fixed to the crimp unit 112.

상기와 같이 조립된 상부캡(170)은 차량의 풀 펌프시 피스톤 로드(130)가 하방으로 이동되며, 그 이동이 클 경우 범퍼스토퍼(160)가 상부캡(170)의 상면을 누르게 되어, 피스톤 로드(130)의 하방향으로의 운동 제한과 동시에 하중을 지지하고 오일씰을 보호한다.In the upper cap 170 assembled as described above, the piston rod 130 moves downward when the vehicle is fully pumped, and when the movement thereof is large, the bumper stopper 160 presses the upper surface of the upper cap 170, and the piston Support the load and protect the oil seal at the same time the movement of the rod 130 in the downward direction.

이와 같은 상기의 상부캡(170)의 설치는 제품의 경량화 및 원가절감을 가져온다.The installation of the upper cap 170 as described above brings about the weight reduction and cost reduction of the product.

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 캡에 의하면, 외부관 상단에 형상 변경된 상부캡을 설치함으로서, 작업을 용이하여 생산성을 높이는 효과가 있으며, 제품 경량화 및 원가절감 효과를 가져온다.As described above, according to the cap of the shock absorber of the present invention, by installing a shape-modified upper cap at the upper end of the outer tube, it is easy to work and increase the productivity, resulting in a lighter weight and a cost reduction effect.

Claims (2)

피스톤 로드의 이동을 안내하는 로드 가이드를 외부관에 지지시킴과 동시에 상기 로드 가이드의 상부에 설치되는 오일씰을 외부의 충격으로부터 보호하는 상부캡을 상기 외부관에 지지시킴에 있어서;In the outer tube while supporting the rod guide for guiding the movement of the piston rod to the outer tube and at the same time to support the upper cap for protecting the oil seal installed on the upper portion of the rod guide from external impact; 상기 오일씰 상부 가장자리에 "ㄴ"자 형상의 절곡부가 환형으로 형성되고, 상기 외부관 단부가 내측으로 커링 가공되어 상기 상부캡의 절곡부를 가압 지지하는 것을 특징으로 하는 쇽 업소버의 상부캡 지지구조.The bent portion of the "b" shape is formed in an annular shape on the upper edge of the oil seal, the outer tube end is curled to the inside to support the bent portion of the upper cap support structure of the shock absorber. 제 1 항에 있어서,The method of claim 1, 상기 상부캡의 "ㄴ"자 형상의 절곡부에 계단면이 형성된 것을 특징으로 하는 쇽 업소버의 상부캡 지지구조.The upper cap support structure of the shock absorber, characterized in that the step surface is formed in the "b" shaped bent portion of the upper cap.
KR10-2000-0083287A 2000-12-27 2000-12-27 Structure for support head cap use in a shock absorber KR100478908B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089901A (en) * 2013-01-15 2013-05-08 慈溪市正大车业有限公司 Guider oil seal assembly and damper

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JPH08121525A (en) * 1994-10-21 1996-05-14 Nippon Mektron Ltd Bump stopper device
KR970042883U (en) * 1995-12-23 1997-07-29 Dust cover fixing structure of shock absorber for automobile
KR19980055403A (en) * 1996-12-28 1998-09-25 김영귀 Dust cover fixing structure of automobile shock absorber
JP2000088031A (en) * 1998-09-09 2000-03-28 Tokai Rubber Ind Ltd Attaching structure of dust cover for shock absorber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089901A (en) * 2013-01-15 2013-05-08 慈溪市正大车业有限公司 Guider oil seal assembly and damper

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