KR20080086166A - Bumper rubber of a shock absorber - Google Patents

Bumper rubber of a shock absorber Download PDF

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Publication number
KR20080086166A
KR20080086166A KR1020070027960A KR20070027960A KR20080086166A KR 20080086166 A KR20080086166 A KR 20080086166A KR 1020070027960 A KR1020070027960 A KR 1020070027960A KR 20070027960 A KR20070027960 A KR 20070027960A KR 20080086166 A KR20080086166 A KR 20080086166A
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South Korea
Prior art keywords
bumper rubber
shock absorber
cylinder
ring member
rubber
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KR1020070027960A
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Korean (ko)
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안필용
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주식회사 만도
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Priority to KR1020070027960A priority Critical patent/KR20080086166A/en
Publication of KR20080086166A publication Critical patent/KR20080086166A/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
    • F16F9/003—Dampers characterised by having pressure absorbing means other than gas, e.g. sponge rubber
    • 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
    • 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

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

Abstract

A bumper rubber of a shock absorber is provided to prevent from a ring member being deformed when the bumper rubber is compressed and to facilitate the manufacturing process by integrally forming the ring member. A bumper rubber of a shock absorber comprises a cylinder(1), a piston(2) and a piston rod(3) reciprocating in the cylinder to generate a damping force, and a bumper rubber(10) installed on the piston rod to prevent the cylinder from being collided with a vehicle body. The bumper rubber includes a body(11) to absorb an impact force by compressively deforming the body in case of a vehicle collision, and a ring member(13) integrally formed with the body during manufacturing of the bumper rubber. The ring member is integrally formed with the body to be exposed to an exterior of the body. The ring member is made of a material which includes at least one selected from the group consisting of a metal, a rubber, and a synthetic resin.

Description

쇽업소버의 범퍼 러버{BUMPER RUBBER OF A SHOCK ABSORBER}Bumper rubber of shock absorber {BUMPER RUBBER OF A SHOCK ABSORBER}

도 1은 종래기술에 따른 쇽업소버의 범퍼 러버의 일례를 도시한 단면도, 1 is a cross-sectional view showing an example of a bumper rubber of a shock absorber according to the prior art;

도 2는 종래기술에 따른 쇽업소버의 범퍼 러버의 또 다른 일례를 도시한 단면도, Figure 2 is a cross-sectional view showing another example of the bumper rubber of the shock absorber according to the prior art,

도 3은 본 발명에 따른 범퍼 러버가 구비된 쇽업소버의 단면도, 3 is a cross-sectional view of the shock absorber having a bumper rubber according to the present invention;

도 4는 본 발명에 따른 범퍼 러버의 측면도이다.4 is a side view of a bumper rubber according to the present invention.

< 도면의 주요 부호에 대한 간단한 설명 ><Brief Description of Major Codes in Drawings>

1 : 실린더 2 : 피스톤1: cylinder 2: piston

3 : 피스톤 로드 4 : 더스트 커버3: piston rod 4: dust cover

10 : 범퍼 러버 11 : 몸체10 bumper rubber 11: body

13 : 링 부재13: ring member

본 발명은 쇽업소버에 관한 것으로서, 더욱 상세하게는 압축 변형시 좌굴을 방지할 수 있으면서 제작이 용이한 쇽업소버의 범퍼 러버에 관한 것이다.The present invention relates to a shock absorber, and more particularly, to a bumper rubber of a shock absorber that can prevent buckling during compression deformation.

쇽업소버는 노면으로부터 주행중인 차량의 차체로 전해지는 진동을 억제, 감 쇄하는 역할을 하며, 특히 차체의 상하 방향 진동에너지를 흡수함으로써, 승차감 향상, 적재화물의 보호, 그리고, 차량의 각 부품을 보호하는데 기여한다.The shock absorber serves to suppress and attenuate the vibration transmitted from the road surface to the vehicle body of the vehicle being driven, and in particular, by absorbing the up and down vibration energy of the vehicle body, improving the riding comfort, protecting the loaded cargo, and protecting each component of the vehicle. Contribute to protection

쇽업소버는 통상, 실린더와, 그 실린더 내에 슬라이드 가능하게 수용되는 피스톤 및 이 피스톤에 연결된 채 실린더 외부로 연장되는 피스톤 로드를 포함한다. 이러한 종래의 쇽업소버가 차량에 설치될 때, 일반적으로 실린더는 차축 또는 차륜 측에 고정되고 피스톤 로드는 차체 측에 고정된다.The shock absorber typically includes a cylinder, a piston slidably received within the cylinder, and a piston rod extending out of the cylinder while being connected to the piston. When such a conventional shock absorber is installed in a vehicle, the cylinder is generally fixed to the axle or wheel side and the piston rod is fixed to the vehicle body side.

쇽업소버는 차량이 노면을 주행할 때 연속적으로 압축(compression) 행정과 리바운드(rebound) 행정을 반복하면서 노면에서 차체로 전해지는 진동 및 충격을 감쇠, 완화하는 기능을 수행할 수 있다.The shock absorber may function to attenuate and mitigate vibrations and shocks transmitted from the road surface to the vehicle body while repeatedly compressing and rebounding the road when the vehicle travels on the road surface.

이러한 기능을 수행하는 종래의 쇽업소버는, 실린더와, 이 실린더 내에서 직선이동함으로써 감쇠력을 발생시키는 피스톤 및 피스톤 로드를 가진다. 피스톤 로드는 실린더의 내부로부터 외부로 관통하여 연장되며, 이 피스톤 로드의 실린더 내측 말단에는 피스톤이 설치되고 실린더 외측 말단은 통상 차체 측에 고정된다.A conventional shock absorber that performs this function has a cylinder, and a piston and a piston rod for generating a damping force by linearly moving in the cylinder. The piston rod extends through from the inside of the cylinder to the outside, and a piston is provided at the inner end of the cylinder of the piston rod, and the outer end of the cylinder is usually fixed to the vehicle body side.

이때, 차체 측에 고정된 피스톤 로드의 실린더 외측 말단에는 범퍼 러버가 부착되어, 쇽업소버가 완전히 압축되는 경우 실린더의 상단이 차체 측과 직접 접촉하여 충돌하는 것을 방지한다.At this time, a bumper rubber is attached to the cylinder outer end of the piston rod fixed to the vehicle body side to prevent the upper end of the cylinder from directly contacting the vehicle body side and colliding when the shock absorber is completely compressed.

도 1에는 종래기술에 따른 쇽업소버의 상단부분, 즉 피스톤 로드와 차체 측의 결합부위만을 도시한 도면이 도시되어 있다. 도 1에 도시된 바와 같이, 피스톤 로드(103)의 말단에는 차체(도시생략)와의 결합을 위한 나사부(103a)가 형성되어 있으며, 그 아래쪽에는 차체측과 실린더(101)와의 충돌을 방지하는 범퍼 러버(110) 가 설치된다.1 is a view showing only the upper portion of the shock absorber according to the prior art, that is, the coupling portion of the piston rod and the vehicle body side. As shown in FIG. 1, a threaded portion 103a is formed at a distal end of the piston rod 103 for engagement with a vehicle body (not shown), and a bumper at the lower side thereof to prevent collision between the vehicle body side and the cylinder 101. The rubber 110 is installed.

또한 통상적인 쇽업소버에 있어서, 범퍼 러버(110)의 외측에는 더스트 커버(104) 및 스프링(105) 등이 설치된다.In addition, in the conventional shock absorber, a dust cover 104, a spring 105, and the like are provided outside the bumper rubber 110.

도 1에 도시된 종래의 범퍼 러버(110)로 인하여, 쇽업소버가 완전히 압축, 즉 수축되었을 때 실린더(101)의 상단이 직접적으로 차체 측에 충돌하는 것은 방지할 수 있었지만, 범퍼 러버(110)가 압축 변형되면서 좌굴이 발생하여 주위에 설치된 부품들과 간섭이 일어나거나 설계자가 요구하는 하중-변형 특성이나 내구성을 만족하지 못하는 문제가 있었다.Due to the conventional bumper rubber 110 shown in FIG. 1, it was possible to prevent the upper end of the cylinder 101 directly colliding to the vehicle body side when the shock absorber was completely compressed, that is, contracted, but the bumper rubber 110 The compressive deformation causes buckling to interfere with components installed around it, or to satisfy load-strain characteristics or durability required by the designer.

이러한 문제를 해결하기 위해 도 2에 도시된 바와 같이 우레탄 혹은 고무 소재의 범퍼 러버(120)의 몸체(121) 외주에 링 부재(123)를 끼워 조립함으로써 요구되는 하중-변형 특성 및 내구성을 만족시키고 압축 변형시 좌굴을 방지하도록 한 범퍼 러버(120)가 제안되었다.To solve this problem, as shown in FIG. 2, the ring member 123 is fitted to the outer circumference of the body 121 of the bumper rubber 120 made of urethane or rubber to satisfy the required load-strain characteristics and durability. Bumper rubbers 120 have been proposed to prevent buckling during compression deformation.

그러나, 이러한 종래의 범퍼 러버(120)는 몸체(121)와 링 부재(123)를 별도로 제작한 후, 몸체(121)를 압축시켜 링 부재(123)를 끼워 조립하는 작업을 별도로 실시하여야 하므로 작업이 번거롭고 시간과 노력이 많이 소요되는 문제가 있었다.However, since the conventional bumper rubber 120 is manufactured separately from the body 121 and the ring member 123, the body 121 must be separately compressed to assemble the ring member 123 to perform the work. This was a cumbersome and time consuming problem.

또한, 장기간 사용하여 압축 변형이 반복되다 보면, 몸체(121)와 링 부재(123) 사이가 분리되어 버리는 문제가 있었다.In addition, if the compressive deformation is repeated after long-term use, there is a problem that the separation between the body 121 and the ring member 123.

본 발명은 이러한 종래의 문제점들을 해결하기 위한 것으로서, 본 발명의 목적은, 링 부재를 일체로 성형함으로써 압축 변형시 좌굴을 방지할 수 있으면서 제 작이 용이한 쇽업소버의 범퍼 러버를 제공하고자 하는 것이다.SUMMARY OF THE INVENTION The present invention has been made to solve these problems, and an object of the present invention is to provide a bumper rubber of a shock absorber that can be easily manufactured while preventing buckling during compression deformation by integrally molding a ring member. .

상기 목적을 달성하기 위한 본 발명에 따르면, 실린더와, 상기 실린더 내에서 직선이동함으로써 감쇠력을 발생시키는 피스톤 및 피스톤 로드와, 상기 실린더가 차체측과 충돌하는 것을 방지하기 위해 상기 피스톤 로드에 설치되는 범퍼 러버를 포함하는 쇽업소버로서, 상기 범퍼 러버는, 충돌시 압축 변형됨으로써 힘을 흡수하기 위한 몸체와, 상기 범퍼 러버의 제조시 상기 몸체와 함께 일체로 성형되는 링 부재를 포함하는 것을 특징으로 하는 쇽업소버의 범퍼 러버가 제공된다.According to the present invention for achieving the above object, a cylinder, a piston and a piston rod for generating a damping force by linearly moving in the cylinder, and a bumper provided on the piston rod to prevent the cylinder from colliding with the vehicle body side 10. A shock absorber comprising a rubber, wherein the bumper rubber includes a body for absorbing force by compressive deformation during impact, and a ring member integrally molded together with the body during manufacture of the bumper rubber. An absorber bumper rubber is provided.

여기에서, 상기 링 부재는 상기 몸체의 외측에 노출되도록 일체로 성형되는 것이 바람직하다.Here, the ring member is preferably integrally molded to be exposed to the outside of the body.

또한, 상기 링 부재는 상기 몸체를 이루는 소재보다 단단한 금속, 고무 및 합성수지 중에서 선택된 어느 하나의 소재로 이루어지는 것이 바람직하다.In addition, the ring member is preferably made of any one material selected from metal, rubber and synthetic resin harder than the material forming the body.

이하, 본 발명의 바람직한 실시예에 따른 쇽업소버의 범퍼 러버를 도면을 참조하여 상세하게 설명한다.Hereinafter, a bumper rubber of a shock absorber according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3에는 본 발명에 따른 범퍼 러버가 구비된 쇽업소버의 단면도가 도시되어 있고, 도 4에는 상기 범퍼 러버의 측면도가 도시되어 있다.Figure 3 is a cross-sectional view of the shock absorber with a bumper rubber according to the present invention, Figure 4 is a side view of the bumper rubber.

도 3에 도시된 바와 같이, 본 발명에 따른 범퍼 러버(10)를 가지는 쇽업소버는, 쇽업소버의 외형을 형성하는 실린더(1)와, 이 실린더(1) 내에서 직선이동함으로써 감쇠력을 발생시키는 피스톤(2) 및 피스톤 로드(3)와, 실린더(1)가 차체측과 충돌하는 것을 방지하기 위해 피스톤 로드(3)에 설치되는 범퍼 러버(10)를 포함하여 이루어진다.As shown in FIG. 3, the shock absorber having the bumper rubber 10 according to the present invention includes a cylinder 1 forming the outer shape of the shock absorber, and a damping force generated by linearly moving in the cylinder 1. It comprises a piston 2 and a piston rod 3 and a bumper rubber 10 provided on the piston rod 3 to prevent the cylinder 1 from colliding with the vehicle body side.

실린더(1)의 외측에는 종래와 마찬가지로 더스트 커버(4)가 설치되어도 좋다.The dust cover 4 may be provided on the outer side of the cylinder 1 as in the prior art.

여기에서, 상기 피스톤 로드(3)는 실린더(1)의 내부로부터 외부로 관통하여 연장되며, 이 피스톤 로드(3)의 실린더 내측 말단에는 피스톤(2)이 설치되고 실린더 외측 말단은 통상 차체(도시생략) 측에 고정된다.Here, the piston rod 3 extends from the inside of the cylinder 1 to the outside, and the piston 2 is installed at the inner end of the cylinder of the piston rod 3 and the outer end of the cylinder is normally a vehicle body (not shown). Fixed) side.

상기 범퍼 러버(10)는, 차체 측에 고정된 피스톤 로드(3)의 실린더 외측 말단에 부착되어, 쇽업소버가 완전히 압축되는 경우 실린더(1)의 상단이 차체 측과 직접 접촉하여 충돌하는 것을 방지한다.The bumper rubber 10 is attached to the cylinder outer end of the piston rod 3 fixed to the vehicle body side to prevent the upper end of the cylinder 1 from directly contacting the vehicle body side and colliding when the shock absorber is completely compressed. do.

본 발명에 따른 상기 범퍼 러버(10)는, 도 4에 도시된 바와 같이, 충돌시 압축 변형됨으로써 힘을 흡수하기 위한 몸체(11)와, 이 몸체(11)와 함께 일체로 성형됨으로써 몸체(11)의 하중-변형 특성 및 내구성을 개선하고 압축 변형시 좌굴을 방지하는 링 부재(13)를 포함한다.The bumper rubber 10 according to the present invention, as shown in Figure 4, the body 11 for absorbing the force by compressive deformation during collision, and the body 11 by being integrally molded together with the body 11 Ring member 13 which improves the load-strain characteristics and durability and prevents buckling during compressive deformation.

상기 범퍼 러버(10)의 몸체(11)는 범퍼 러버를 제조하기 위하여 통상 사용되는 우레탄 등의 소재로 이루어진다. 또한 상기 링 부재(13)는 스틸 등의 금속 소재일 수도 있고 우레탄보다 단단한 고무나 합성수지 소재일 수도 있다.The body 11 of the bumper rubber 10 is made of a material such as urethane that is commonly used to manufacture the bumper rubber. In addition, the ring member 13 may be a metal material such as steel, or may be a rubber or synthetic resin material that is harder than urethane.

본 발명에 따르면, 상기 링 부재(13)는 몸체(11)의 성형과 동시에 일체로 몰딩되기 때문에 사양 및 제조공정을 단순화시킬 수 있게 된다. 또한, 장기간 사용하여 압축 변형이 반복되더라도, 링 부재(13)가 몸체(11) 내에 일체로 몰딩되어 있 기 때문에 링 부재(13)와 몸체(11)가 서로 분리되는 것을 방지할 수 있게 된다.According to the present invention, since the ring member 13 is molded integrally with the molding of the body 11, the specification and the manufacturing process can be simplified. In addition, even if the compressive deformation is repeated for a long time use, since the ring member 13 is integrally molded in the body 11, the ring member 13 and the body 11 can be prevented from being separated from each other.

상기 링 부재(13)는 몸체(11)의 외측에 노출되도록 일체로 성형되는 것이 피스톤 로드(3)의 표면 손상 방지를 위해 바람직하지만, 피스톤 로드(3)가 삽입될 수 있도록 몸체(11) 내에 형성되는 내부 중공부(도시생략)의 내주면 측에 링 부재(13)가 노출되도록 성형될 수도 있다. 또한, 필요에 따라서 링 부재(13)가 몸체(11) 내부에 위치하도록 성형될 수도 있다.The ring member 13 is preferably integrally molded to be exposed to the outside of the body 11 in order to prevent surface damage of the piston rod 3, but in the body 11 so that the piston rod 3 can be inserted. The ring member 13 may be formed to be exposed on the inner circumferential surface side of the inner hollow portion (not shown) to be formed. In addition, if necessary, the ring member 13 may be molded to be positioned inside the body 11.

본 발명에 따른 상기 범퍼 러버는 도 3에 도시된 형태의 쇽업소버 이외에 모노 튜브식(mono tube type) 쇽업소버 등 다른 모든 형태의 쇽업소버에도 장착될 수 있음은 물론이다.The bumper rubber according to the present invention may be mounted on all other types of shock absorbers such as a mono tube type shock absorber in addition to the shock absorber of the type shown in FIG. 3.

이상과 같이 본 발명에 따른 쇽업소버의 범퍼 러버를, 예시된 도면을 참조하여 설명하였으나, 본 발명은 이상에서 설명된 실시예와 도면에 의해 한정되지 않으며, 특허청구범위 내에서 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자들에 의해 다양한 수정 및 변형이 이루어질 수 있음은 물론이다.As described above, the bumper rubber of the shock absorber according to the present invention has been described with reference to the illustrated drawings, but the present invention is not limited to the embodiments and drawings described above, and the present invention belongs to the claims. Of course, various modifications and variations can be made by those skilled in the art.

상술한 바와 같은 본 발명에 의하면, 링 부재를 일체로 성형함으로써 압축 변형시 좌굴을 방지할 수 있으면서 제작이 용이한 쇽업소버의 범퍼 러버가 제공된다.According to the present invention as described above, there is provided a shock absorber bumper rubber which can be easily manufactured while being able to prevent buckling during compression deformation by integrally molding the ring member.

Claims (3)

실린더와, 상기 실린더 내에서 직선이동함으로써 감쇠력을 발생시키는 피스톤 및 피스톤 로드와, 상기 실린더가 차체측과 충돌하는 것을 방지하기 위해 상기 피스톤 로드에 설치되는 범퍼 러버를 포함하는 쇽업소버로서, A shock absorber comprising a cylinder, a piston and a piston rod for generating a damping force by linearly moving in the cylinder, and a bumper rubber installed on the piston rod to prevent the cylinder from colliding with the vehicle body side. 상기 범퍼 러버는, 충돌시 압축 변형됨으로써 힘을 흡수하기 위한 몸체와, 상기 범퍼 러버의 제조시 상기 몸체와 함께 일체로 성형되는 링 부재를 포함하는 것을 특징으로 하는 쇽업소버의 범퍼 러버.The bumper rubber is a bumper rubber of the shock absorber, characterized in that it comprises a body for absorbing the force by the compression deformation during the impact, and a ring member integrally formed with the body in the manufacture of the bumper rubber. 청구항 1에 있어서, The method according to claim 1, 상기 링 부재는 상기 몸체의 외측에 노출되도록 일체로 성형되는 것을 특징으로 하는 쇽업소버의 범퍼 러버.The ring member is a bumper rubber of the shock absorber, characterized in that integrally molded to be exposed to the outside of the body. 청구항 1에 있어서, The method according to claim 1, 상기 링 부재는 상기 몸체를 이루는 소재보다 단단한 금속, 고무 및 합성수지 중에서 선택된 어느 하나의 소재로 이루어지는 것을 특징으로 하는 쇽업소버의 범퍼 러버.The ring member is a bumper rubber of the shock absorber, characterized in that made of any one material selected from metal, rubber and synthetic resin harder than the material forming the body.
KR1020070027960A 2007-03-22 2007-03-22 Bumper rubber of a shock absorber KR20080086166A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11506253B2 (en) 2020-10-01 2022-11-22 DRiV Automotive Inc. Durable bumper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11506253B2 (en) 2020-10-01 2022-11-22 DRiV Automotive Inc. Durable bumper

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