KR20020051433A - Dust cover use in a shock absorber - Google Patents

Dust cover use in a shock absorber Download PDF

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Publication number
KR20020051433A
KR20020051433A KR1020000080469A KR20000080469A KR20020051433A KR 20020051433 A KR20020051433 A KR 20020051433A KR 1020000080469 A KR1020000080469 A KR 1020000080469A KR 20000080469 A KR20000080469 A KR 20000080469A KR 20020051433 A KR20020051433 A KR 20020051433A
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KR
South Korea
Prior art keywords
dust cover
cup
shock absorber
piston rod
insertion part
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KR1020000080469A
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Korean (ko)
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KR100489374B1 (en
Inventor
임정호
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밍 루
주식회사 만도
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Priority to KR10-2000-0080469A priority Critical patent/KR100489374B1/en
Publication of KR20020051433A publication Critical patent/KR20020051433A/en
Application granted granted Critical
Publication of KR100489374B1 publication Critical patent/KR100489374B1/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

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

Abstract

PURPOSE: A dust cover for a shock absorber is provided to reduce working hours, and to cut down expenses by simplifying the assembling structure of the dust cover and a cup and parts. CONSTITUTION: A cup(130) is installed in the upper part of a piston rod(150), and an insertion part(122) is formed in a dust cover(120) to press-fit the outer periphery of the cup. The dust cover is installed out of an external pipe(110) to prevent dust or foreign matters from being moved into the external pipe. A contact supporting surface(124) is formed in the upper part of the insertion part, and contacted to the upper surface of the cup with elastic force. A fitting sill(126) is formed in the insertion part, and bent inward. The insertion part of the elastic hard dust cover is inserted to the lower part of the cup by press-fitting, and rotation of the dust cover and the cup is prevented in interlocking the piston rod. Displacement is prevented by covering the upper part of the cup by the contact supporting surface of the dust cover. Working hours are reduced with simplifying the assembling structure.

Description

쇽 업소버의 더스트 커버{DUST COVER USE IN A SHOCK ABSORBER}DU Dust cover of absorber {DUST COVER USE IN A SHOCK ABSORBER}

본 발명은 쇽 업소버의 더스트 커버에 관한 것으로서, 더욱 상세하게는 더스트 커버와 컵간의 조립 형상을 개선한 쇽 업소버의 더스트 커버에 관한 것이다.The present invention relates to a dust cover of a shock absorber, and more particularly, to a dust cover of a shock absorber having an improved assembly shape between a dust cover and a cup.

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. The interior is filled with fillers such as gas and oil. It is provided to increase the damping force, and oil-filled hydraulic shock absorbers are commonly used.

대개 쇽 업소버는 도 1에 도시된 바와 같이 내부에 오일이 채워진 내부관(40) 및 외부관(10)과, 일부는 상기 내부관(40)의 내측에 위치하고 나머지는 그 외측에 위치하며 상기 내부관(40)의 길이 방향으로 왕복운동하도록 설치되어지는 피스톤 로드(50)와, 상기 피스톤 로드(50)의 선단에 결합되는 피스톤 밸브(51)와, 상기 내부관(40) 및 외부관(10)의 연결부 하단에 결합되는 바디밸브(60)와, 상기 외부관(10)의 하단과 피스톤 로드(50)의 상단에 각각 결합되어진 체결구(70)와, 상기 피스톤 로드(50)의 상단에 체결된 체결구(70)의 하부에는 피스톤 로드(50)에 이물질이 침투하는 것을 방지하도록 외부관(10)의 일부를 수용한 더스트 커버(20)와, 상기 더스트 커버(20)를 고정시키며 피스톤 로드(50)의 상측 선단과 결합된 컵(22)으로 구성되어진다.Usually, the shock absorber has an inner tube 40 and an outer tube 10 filled with oil therein as shown in FIG. 1, and a portion of the shock absorber is positioned inside the inner tube 40 and the other is positioned outside of the inner tube 40. Piston rod 50 which is installed to reciprocate in the longitudinal direction of the pipe 40, the piston valve 51 coupled to the tip of the piston rod 50, the inner tube 40 and the outer tube 10 Body valve 60 coupled to the lower end of the connecting portion, the fastener 70 is coupled to the lower end of the outer tube 10 and the upper end of the piston rod 50, respectively, and the upper end of the piston rod 50 The lower portion of the fastener 70 is fastened to the piston rod 50 to prevent foreign matter from penetrating the dust cover 20 accommodated a part of the outer tube 10, the dust cover 20 is fixed to the piston It consists of a cup 22 coupled to the upper end of the rod 50.

그러나, 이와 같은 종래 컵(22)의 하단부에 억지 끼워맞춰지는 더스트 커버(20)는, 현 결합부(21)의 형상으로는 그 재질이 소프트한 것만이 적용되어 재료비 상승의 요인이 되고, 상기 결합부(21)가 돌출된 관계로 파손되는 경우가 발생하여 더스트 커버(20)로서의 기능이 상실되는 결함이 있다. 또한, 이처럼 소프트한 재질의 사용은 컵(22)과 더스트 커버(20)와의 결합시 유격이 발생되고 결합부의 계속적인 습동으로 인해 손상되는 문제점이 있다.However, the dust cover 20, which is forcibly fitted to the lower end of the conventional cup 22, is only applied to the soft material in the shape of the string coupling portion 21, resulting in a material cost increase. There is a defect in that the coupling part 21 is protruded in a broken state, and the function as the dust cover 20 is lost. In addition, the use of such a soft material has a problem that the play is generated when the cup 22 and the dust cover 20 is coupled and is damaged due to the continuous sliding of the coupling portion.

본 발명은 상술한 바와 같은 종래의 문제점을 해결하기 위한 것으로서, 더스트 커버와 컵과의 결합 형상을 단순화함으로써, 재질의 선택 폭이 넓어져 재료비 절감과 부품 형상의 단순화로 작업 시간이 단축되는 쇽 업소버의 더스트 커버를 제공하는데 그 목적이 있다.The present invention is to solve the conventional problems as described above, by simplifying the combined shape of the dust cover and the cup, a wider selection of materials to reduce the material cost and shorten the work time by reducing the shape of the shock absorber The purpose is to provide a dust cover of.

상기의 목적을 달성하기 위하여 본 발명은, 피스톤 로드의 상측 선단에 결합되는 컵에 그 일측이 결합되어 피스톤 로드에 이물질이 침투하는 것을 방지하는 쇽 업소버의 더스트 커버에 있어서; 일측에 상기 컵의 외주면이 억지 끼워지는 삽입부가 형성되고, 상기 삽입부 의 내측면에 상기 컵의 단부를 지지하는 걸림턱이 형성되며, 상기 삽입부 상측에는 끼워진 컵의 라운드 상면에 밀착되는 밀착지지면이 형성된 것을 특징으로 하는 쇽 업소버의 더스트 커버를 제공한다.In order to achieve the above object, the present invention is a dust cover of the shock absorber is coupled to one side of the cup coupled to the upper end of the piston rod to prevent foreign matter from penetrating the piston rod; The outer peripheral surface of the cup is inserted into the insertion portion forcing the outer peripheral surface is formed, the inner side of the insert is formed with a locking jaw for supporting the end of the cup, the upper side of the insert is in close contact with the round upper surface of the inserted cup It provides a dust cover of shock absorber characterized in that the surface is formed.

도 1은 종래 쇽 업소버의 더스트 커버를 도시한 단면도.1 is a cross-sectional view showing a dust cover of a conventional shock absorber.

도 2는 본 발명에 따른 쇽 업소버의 더스트 커버를 도시한 단면도.2 is a sectional view showing a dust cover 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 : 더스트 커버 122 : 삽입부120: dust cover 122: insertion portion

124 : 밀착지지면 126 : 걸림턱124: close contact surface 126: locking jaw

130 : 컵 140 : 내부관130: cup 140: inner tube

150 : 피스톤 로드 151 : 피스톤 밸브150: piston rod 151: piston valve

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 더스트 커버를 도시한 단면도이다.2 is a cross-sectional view showing the dust cover of the shock absorber according to the present invention.

본 발명에 따른 쇽 업소버의 더스트 커버는, 도 2에 도시되어 있는 바와 같이, 차량용 쇽 업소버(100)는, 오일이 가득 채워진 내부관(140)과 이 내부관(140)의 외측으로는 오일이 절반정도 채워진 외부관(110), 그리고 일단은 내부관(140)의 내측으로 삽입되어 상, 하 이동 가능하게 설치되고 타단은 외측으로 연장되는 피스톤 로드(150)가 마련된다.As shown in FIG. 2, the dust cover of the shock absorber according to the present invention includes an inner tube 140 filled with oil and oil outside the inner tube 140. About half of the outer tube 110, and one end is inserted into the inner tube 140, the piston rod 150 is provided to be installed to move up, down and the other end to the outside.

그리고 상기 피스톤 로드(150)의 상측 선단에는 원통의 컵(130)이 설치되며, 상기 컵(130)의 외주면이 억지 끼워지도록 개구된 삽입부(122)가 형성된 더스트 커버(120)가 설치된다. 상기 더스트 커버(120)는 외부관(110)의 내부로 먼지 등의 이물질이 침투되지 않도록 상기 외부관(110)의 외부로 배설된 것으로서, 상기 삽입부(122) 상단에는 끼워진 컵(130)의 라운드면 상면에 밀착되도록 탄성이 강한 밀착지지면(124)이 형성되고, 상기 삽입부(122) 내측으로는 절곡된 걸림턱(126)이 형성된다.In addition, a cylindrical cup 130 is installed at an upper end of the piston rod 150, and a dust cover 120 having an opening 122 formed therein so as to forcibly fit the outer circumferential surface of the cup 130 is installed. The dust cover 120 is disposed to the outside of the outer tube 110 so that foreign matter such as dust does not penetrate into the outer tube 110, and the upper portion of the cup 130 inserted into the upper portion of the insert 122. An elastic contact surface 124 having a strong elasticity is formed to be in close contact with the upper surface of the round surface, and a bent locking jaw 126 is formed inside the insertion portion 122.

상기 더스트 커버(120)는 하드(HARD) 한 재질로 구성된다.The dust cover 120 is made of a hard (HARD) material.

이와 같이 구성된 본 발명에 따른 쇽 업소버의 더스트 커버의 조립은 다음과 같다.Assembly of the dust cover of the shock absorber according to the present invention configured as described above is as follows.

피스톤 로드(150)의 상측 선단에 결합된 컵(130)에 하방으로부터 더스트 커버(120)의 삽입부(122)를 끼워 넣는다. 이 때 더스트 커버(120)는 탄성이 강한 하드(HARD)한 재질로서 초기의 삽입부(122)를 벌려 컵(130)을 포함하듯 억지 끼워맞춘다.The insertion part 122 of the dust cover 120 is inserted into the cup 130 coupled to the upper end of the piston rod 150 from below. At this time, the dust cover 120 is a hard elastic material (HARD) is made of a hard material to open the initial insertion portion 122 to fit as if including the cup 130.

상기 컵(130)의 끼워맞춤은 더스트 커버(120)의 삽입부(122) 내측에 형성된 걸림턱(126)까지 끼워지며, 피스톤 로드(150)의 연동시 컵(130)과 더스트 커버(120)의 회전을 방지하게 된다.The fitting of the cup 130 is fitted to the engaging jaw 126 formed inside the insertion part 122 of the dust cover 120, and the cup 130 and the dust cover 120 when the piston rod 150 is interlocked. It will prevent the rotation of the.

그리고 삽입부(122)에 결합된 컵(130)의 라운드진 상면에는 더스트 커버(120)의 밀착지지면(124)이 덮어 씌워지듯 밀착되어 이탈을 방지한다.In addition, the rounded upper surface of the cup 130 coupled to the insertion part 122 is in close contact with the dust cover 120 as if the cover is covered to prevent separation.

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 요지를벗어남이 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 더스트 커버에 의하면, 더스트 커버와 컵과의 결합 형상을 단순화함으로써, 재질의 선택 폭이 넓어져 재료비 절감과 부품 형상의 단순화로 작업 시간이 단축되는 효과가 있다.As described above, according to the dust cover of the shock absorber of the present invention, by simplifying the coupling shape between the dust cover and the cup, a wider selection of materials can be obtained, thereby reducing work costs by reducing material costs and simplifying the shape of parts. .

Claims (1)

피스톤 로드의 상측 선단에 결합되는 컵에 그 일측이 결합되어 피스톤 로드에 이물질이 침투하는 것을 방지하는 쇽 업소버의 더스트 커버에 있어서;In the dust cover of the shock absorber coupled to one side of the cup coupled to the upper end of the piston rod to prevent foreign matter from penetrating the piston rod; 일측에 상기 컵의 외주면이 억지 끼워지는 삽입부가 형성되고, 상기 삽입부 의 내측면에 상기 컵의 단부를 지지하는 걸림턱이 형성되며, 상기 삽입부 상측에는 끼워진 컵의 라운드 상면에 밀착되는 밀착지지면이 형성된 것을 특징으로 하는 쇽 업소버의 더스트 커버.The outer peripheral surface of the cup is inserted into the insertion portion forcing the outer peripheral surface is formed, the inner side of the insert is formed with a locking jaw for supporting the end of the cup, the upper side of the insert is in close contact with the round upper surface of the inserted cup Dust cover of shock absorber, characterized in that the surface is formed.
KR10-2000-0080469A 2000-12-22 2000-12-22 Dust cover use in a shock absorber KR100489374B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2000-0080469A KR100489374B1 (en) 2000-12-22 2000-12-22 Dust cover use in a shock absorber

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Application Number Priority Date Filing Date Title
KR10-2000-0080469A KR100489374B1 (en) 2000-12-22 2000-12-22 Dust cover use in a shock absorber

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KR20020051433A true KR20020051433A (en) 2002-06-29
KR100489374B1 KR100489374B1 (en) 2005-05-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55154838U (en) * 1979-04-23 1980-11-07
JPS56115048U (en) * 1980-02-05 1981-09-03
JPH0414842U (en) * 1990-05-29 1992-02-06
KR19980066076U (en) * 1997-05-12 1998-12-05 김영귀 Shock Cover Dust Cover Movement Structure of Shock Absorber

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