KR100705398B1 - Gas lifter for vehicle - Google Patents

Gas lifter for vehicle Download PDF

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Publication number
KR100705398B1
KR100705398B1 KR1020050067944A KR20050067944A KR100705398B1 KR 100705398 B1 KR100705398 B1 KR 100705398B1 KR 1020050067944 A KR1020050067944 A KR 1020050067944A KR 20050067944 A KR20050067944 A KR 20050067944A KR 100705398 B1 KR100705398 B1 KR 100705398B1
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South Korea
Prior art keywords
orifice
piston
cross
cylinder tube
sectional area
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KR1020050067944A
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Korean (ko)
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KR20070013548A (en
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정현진
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현대자동차주식회사
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Priority to KR1020050067944A priority Critical patent/KR100705398B1/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
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F16F9/0227—Telescopic characterised by the piston construction
    • 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
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F16F9/0245—Means for adjusting the length of, or for locking, the spring or dampers
    • 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
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/52—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics in case of change of temperature
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/02—Special physical effects, e.g. nature of damping effects temperature-related

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

본 발명은 차량용 가스 리프터에 관한 것이며, 상세하게는 가스 리프터 피스톤의 오리피스 단면적 가변구조에 관한 것으로서, 계절의 온도에 비례하여 오리피스의 단면적을 증감하여서 계절에 불구하고 도어의 조작력을 균일하게 유지할 수 있도록 한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas lifter for a vehicle, and more particularly, to a variable structure of an orifice cross-sectional area of a gas lifter piston. It is.

본 발명은 실린더 튜브(1)의 내부에 피스톤(2)을 왕복운동할 수 있게 내장함과 동시에 피스톤(2)에 피스톤 로드(3)를 일체로 형성하여 실린더 튜브(1)의 외부로 돌출시키고, 상기 피스톤(2)에 적어도 1개 이상의 오리피스(4)를 형성하며, 실린더 튜브(1) 내에 일정압력의 질소가스(N2)를 충전하여서 된 것이다.According to the present invention, the piston 2 is integrally formed in the cylinder tube 1 to reciprocate and at the same time, the piston rod 3 is integrally formed on the piston 2 to protrude out of the cylinder tube 1. At least one orifice (4) is formed in the piston (2), and the cylinder tube (1) is filled with nitrogen gas (N 2 ) of a constant pressure.

그리고 상기 오리피스(4)의 단면적을 4각형으로 형성하고, 상기 단면 4각형 오리피스(4) 내에 단면적 조절부재(10)를 설치하여 실린더 튜브(1) 내에 충전한 질소가스(N2)의 온도변화 즉 계절의 온도변화에 비례하여 오리피스(4)의 단면적을 증감하도록 한 것이다.In addition, the cross-sectional area of the orifice 4 is formed in a quadrangular shape, and the temperature change of nitrogen gas N 2 filled in the cylinder tube 1 by installing the cross-sectional area adjusting member 10 in the cross-sectional quadrilateral orifice 4 is provided. That is, the cross-sectional area of the orifice 4 is increased or decreased in proportion to the seasonal temperature change.

실린더 튜브, 피스톤, 오리피스, 단면적 조절부재, 조절판체, 바이메탈 Cylinder tube, piston, orifice, cross section adjusting member, adjusting plate body, bimetal

Description

차량용 가스 리프터{GAS LIFTER FOR VEHICLE}Gas lifter for vehicles {GAS LIFTER FOR VEHICLE}

도 1은 본 발명의 실시예의 종단면도1 is a longitudinal sectional view of an embodiment of the present invention;

도 2는 도 1의 A-A 선 단면도2 is a cross-sectional view taken along the line A-A of FIG.

도 3a는 본 발명의 실시예의 작용상태도Figure 3a is a functional state diagram of an embodiment of the present invention

도 3b는 도 3a의 B-B 선 단면도3B is a cross-sectional view taken along the line B-B in FIG. 3A

< 도면의 주요부분에 대한 부호설명 >         <Explanation of Signs of Major Parts of Drawings>

1 : 실린더 튜브 2 : 피스톤 4 : 오리피스 1 cylinder tube 2 piston 4 orifice

10 : 단면적 조절부재 11 : 조절판체 14 : 바이메탈DESCRIPTION OF SYMBOLS 10 Cross-sectional area adjustment member 11 Control panel 14 Bimetal

본 발명은 차량용 가스 리프터에 관한 것이며, 상세하게는 가스 리프터 피스톤의 오리피스 단면적 가변구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas lifter for a vehicle, and more particularly, to a variable structure of an orifice cross-sectional area of a gas lifter piston.

주지하는 바와 같이 차량의 테일 게이트, 트렁크 리드, 후드 패널 등(이하 도어 라함)은 필요시 개방한 후 그 개방상태를 유지하기 위하여 가스 리프터를 사용하고 있으며, 상기 가스 리프터는 도 1에서 참조되는 바와 같이 실린더 튜브(1)의 내부에 피스톤(2)을 왕복운동할 수 있게 내장함과 동시에 피스톤(2)에 피스톤 로드(3)를 일체로 형성하여 실린더 튜브(1)의 외부로 돌출시키고 상기 피스톤(2)에 적어도 1개 이상의 오리피스(4)를 형성하며, 실린더 튜브(1) 내에 일정압력의 질소가스(N2)를 충전하여서 된 것이다.As is known, tail gates, trunk lids, hood panels, etc. (hereinafter referred to as doors) of a vehicle use a gas lifter to maintain the open state after opening the door if necessary, and the gas lifter is referred to in FIG. Likewise, the piston 2 is built in the cylinder tube 1 to reciprocate, and at the same time, the piston rod 3 is integrally formed on the piston 2 to protrude out of the cylinder tube 1 and the piston At least one orifice 4 is formed in (2), and nitrogen gas (N 2 ) of constant pressure is filled in the cylinder tube (1).

상기한 가스 리프터는 통상적으로 실린더 튜브(1)의 일단은 보디에 고정하고 피스톤 로드(3)의 자유단은 도어에 고정하여서, 도어를 개방할 때는 실린더가 전진(피스톤 로드의 돌출)하고, 개방된 도어를 폐쇄할 때에는 실린더가 후진(피스톤 로드의 수납)되는바, 상기와 같이 도어를 개폐할 때 즉 실린더가 전ㆍ후진할 때 실린더 튜브(1) 내에 충전한 질소가스(N2)는 피스톤(2)에 형성한 오리피스(4)를 통하여 피스톤 로드측(a)에서 피스톤측(b)으로 이동하거나, 피스톤측(b)에서 피스톤 로드측(a)으로 이동하고, 도어의 개폐가 종료되면 피스톤(2)의 전후(양측)의 가스압은 평형을 유지하면서 도어의 개폐상태를 유지하는 것이다.The gas lifter is generally fixed to one end of the cylinder tube (1) to the body and the free end of the piston rod (3) to the door, so that when the door is opened, the cylinder is advanced (protrusion of the piston rod), the opening When the door is closed, the cylinder is retracted (storing of the piston rod). As described above, when the door is opened or closed, that is, when the cylinder is moved forward and backward, the nitrogen gas N 2 charged in the cylinder tube 1 is piston. When the piston rod side a moves from the piston rod side a to the piston side b through the orifice 4 formed in (2), or moves from the piston side b to the piston rod side a, the opening and closing of the door is completed. The gas pressure in the front and rear (both sides) of the piston 2 maintains the open / closed state of the door while maintaining the equilibrium.

그러나 상기한 가스 리프터의 피스톤(2)에 형성한 오리피스(4)의 단면적은 일정하고, 실린더 튜브(1)에 질소가스(N2)를 충전할 때 일정압력으로 충전하며, 계절 즉 대기온도에 따라 질소가스(N2)의 온도가 변하고, 질소가스(N2)의 온도가 계절에 따라 변하면 완전가스 상태식 PV=RT에 의하여 그 압력도 변함으로써 도어의 개폐 조작력(effort)도 계절에 따라 변하게 된다.However, the cross-sectional area of the orifice (4) formed in the piston (2) of the gas lifter is constant, it is charged at a constant pressure when the nitrogen gas (N 2 ) to the cylinder tube 1 is filled, and at the season or atmospheric temperature When the temperature of the nitrogen gas (N 2 ) is changed, and the temperature of the nitrogen gas (N 2 ) is changed according to the season, the pressure is also changed by the complete gas state PV = RT, the door opening and closing force (effort) also depends on the season Will change.

상기와 같이 도어의 개폐 조작력이 계절에 따라 변화하면 동일한 도어일 경우라도 여름은 겨울에 비하여 질소가스의 압력이 높은데 비하여, 오리피스 단면적 은 동일함으로써 조작력이 커지게 되어 도어의 개폐시에 힘이 많이 들고, 불편하게 되는 문제점이 있게 되는 것이다.As described above, when the opening / closing operation force of the door changes according to the season, even though the same door is used, the pressure of nitrogen gas is higher in summer than in winter, whereas the orifice cross-sectional area is the same, which increases the operating force. There is a problem that becomes uncomfortable.

본 발명은 상기한 문제점을 시정하여, 계절의 온도에 비례하여 오리피스의 단면적을 증감하여서 계절에 불구하고 도어의 조작력을 균일하게 유지할 수 있도록 한 차량용 가스 리프터를 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION The present invention aims to provide a gas lifter for a vehicle that corrects the above-described problems and increases or decreases the cross-sectional area of an orifice in proportion to the temperature of the season so that the operation force of the door can be maintained uniform despite the season.

상기한 목적을 달성하기 위하여, 본 발명은 실린더 튜브의 내부에 피스톤 로드를 외부에 돌출한 피스톤을 내장하고, 상기 피스톤에 적어도 1개 이상의 오리피스를 형성함과 동시에 실린더 튜브 내에 질소가스를 충전한 것에 있어서, 상기 오리피스의 단면을 4각형으로 형성하고, 상기 4각형 오리피스 내에 실린더 튜브 내에 충전한 질소가스의 온도변화에 비례하여 오리피스의 단면적을 증감하는 단면적 조절부재를 설치하여서 된 것이다.In order to achieve the above object, the present invention provides a piston which protrudes the piston rod to the outside of the cylinder tube, and at least one orifice is formed in the piston and the nitrogen gas is filled in the cylinder tube. In this case, the cross-section of the orifice is formed in a quadrangular shape, and the cross-sectional area adjusting member is provided to increase or decrease the cross-sectional area of the orifice in proportion to the temperature change of nitrogen gas charged in the cylinder tube in the tetragonal orifice.

본 발명은 도 1 및 도 2에 도시한 바와 같이, 실린더 튜브(1)의 내부에 피스톤(2)을 왕복운동할 수 있게 내장함과 동시에 피스톤(2)에 피스톤 로드(3)를 일체로 형성하여 실린더 튜브(1)의 외부로 돌출시키고, 상기 피스톤(2)에 적어도 1개 이상의 오리피스(4)를 형성하며, 실린더 튜브(1) 내에 일정압력의 질소가스(N2)를 충전하여서 된 것이다.1 and 2, the piston rod 3 is integrally formed on the piston 2 while the piston 2 is reciprocated in the cylinder tube 1. To the outside of the cylinder tube (1), at least one orifice (4) is formed in the piston (2), and filled with nitrogen gas (N 2 ) of a constant pressure in the cylinder tube (1). .

그리고 상기 오리피스(4)의 단면적을 4각형으로 형성하고, 상기 단면 4각형 오리피스(4) 내에 단면적 조절부재(10)를 설치하여 실린더 튜브(1) 내에 충전한 질 소가스(N2)의 온도변화 즉 계절의 온도변화에 비례하여 오리피스(4)의 단면적을 증감하도록 한 것이다.In addition, the cross-sectional area of the orifice (4) is formed into a quadrangular shape, and the cross-sectional area adjusting member (10) is installed in the cross-sectional quadrilateral orifice (4) and the temperature of the nitrogen gas (N 2 ) filled in the cylinder tube (1). The cross-sectional area of the orifice 4 is increased or decreased in proportion to the change, that is, the temperature change of the season.

상기한 단면적 조절부재(10)는 조절판체(11)의 폭을 상기 오리피스(4)의 폭과 동일하게 형성하여 오리피스(4)에 삽입하여서 그 양측벽에 지지함과 동시에 조절판체(11)에 피스톤(2)의 폭과 동일한 수직 지지면(12a)(12b)을 형성하여 피스톤(2)의 오리피스(4) 인접 부위의 양면에 지지하고, 상기 조절판체(11)의 양단에 지지돌기(13a)(13b)를 피스톤(2)의 양측면과 일정간격 유지되게 일체로 형성하여, 상기 지지돌기(13a)(13b)와 피스톤(2) 사이에 바이메탈(14)을 팽창이 적은 쪽을 실린더 튜브(1)측을 향하도록 설치한 것이다.The cross-sectional area control member 10 is formed to be equal to the width of the orifice 4, the width of the adjustment plate body 11 is inserted into the orifice 4 and supported on both side walls of the control plate body 11 at the same time Vertical support surfaces 12a and 12b having the same width as the piston 2 are formed to be supported on both sides of the orifice 4 adjacent portion of the piston 2, and the support protrusions 13a are provided at both ends of the control plate body 11. 13b is integrally formed with both sides of the piston 2 so as to be maintained at a constant interval, and the bimetal 14 is disposed between the support protrusions 13a and 13b and the piston 2 with less expansion. 1) It is installed facing the side.

상기 바이메탈(14)의 재료는 팽창이 적은 판(15a)은 니켈과 철의 합금 등이 사용되고, 팽창이 큰 판(15b)은 구리와 아연의 합금 등을 사용하며 이들은 주지된 것이다.As for the material of the bimetal 14, an alloy of nickel and iron is used as the plate 15a having a low expansion, and an alloy of copper and zinc is used as the plate 15b with a large expansion, and these are well known.

그리고 바이메탈(14)의 일단 즉 조절판체(11)측은 지지돌기(13a)(13b)에 용접 등으로 접합하고, 타측 즉 피스톤(2)측은 피스톤(2)의 양측에 요부(16a)(16b)를 형성하여 끼워 설치함으로써 오리피스(4)에 단면적 조절부재(10)의 설치를 신속하고 간편하게 한 것이다.One end of the bimetal 14, that is, the side of the control plate body 11, is joined to the support protrusions 13a and 13b by welding or the like, and the other side, that is, the piston 2 side, is provided with recess portions 16a and 16b on both sides of the piston 2. Forming and inserting the installation of the cross-sectional area control member 10 to the orifice (4) is quick and easy.

이상과 같은 본 발명은 종래의 것과 같이 도어를 개폐할 때 즉 실린더가 전후진할 때 실린더 튜브(1) 내에 충전한 질소가스(N2)는 피스톤(2)에 형성한 오리피스(4)를 통하여 피스톤 로드측(a)에서 피스톤측(b)으로 이동하거나, 피스톤측(b)에 서 피스톤 로드측(a)으로 이동하고, 도어의 개폐가 종료되면 피스톤(2)의 전후 양측의 가스압은 평형을 유지하면서 도어의 개폐상태를 유지하는 것이다.According to the present invention as described above, when the door is opened and closed, that is, when the cylinder is moved back and forth, the nitrogen gas (N 2 ) charged in the cylinder tube (1) is passed through the orifice (4) formed in the piston (2). When the piston rod side (a) moves from the piston side (b) or the piston side (b) to the piston rod side (a), and when the opening and closing of the door is completed, the gas pressures at the front and rear sides of the piston (2) are balanced. To maintain the open and closed state of the door.

상기와 같이 도어를 개폐할 때 기온이 낮은 계절에는 실린더 튜브(1) 내에 충전한 질소가스(N2)도 그 온도가 낮음으로 질소가스(N2)에 접촉한 바이메탈(14)은 도 1과 같이 수평을 유지하고 조절판체(11)는 오리피스(4)의 일부를 폐쇄한 상태를 유지함으로써 오리피스(4)의 단면적은 작은 상태를 유지하고, 한편 기온이 낮은 계절에는 실린더 튜브(1) 내에 충전한 질소가스(N2)의 온도도 낮음으로 그 낮은 온도에 비례하여 그 압력도 상대적으로 낮은 압력을 유지함으로써 도어를 개폐할 때 그 조작력이 적게 드는 것이다.When the door is opened and closed as described above, the nitrogen gas (N 2 ) charged in the cylinder tube (1) in the season when the temperature is low is also low temperature, the bimetal 14 in contact with the nitrogen gas (N 2 ) is shown in FIG. As such, the throttle plate 11 maintains a state in which the orifice 4 is closed by keeping the cross-sectional area of the orifice 4 small, while filling the cylinder tube 1 in a low temperature season. As the temperature of a nitrogen gas (N 2 ) is low and its pressure is relatively low in proportion to its low temperature, the operation force is low when opening and closing the door.

한편 기온이 점점 높아지는 것에 비례하여 질소가스(N2)의 온도가 높아짐에 비례하여 바이메탈(14)의 변형량이 증대함에 따라 조절판체(11)의 양측 수직 지지면(12a)(12b)이 피스톤(2)의 오리피스(4) 인접 부위 양면 등을 따라 실린더 튜브(1)측으로 슬라이딩함으로써 오리피스(4)의 단면적이 증대되며, 상기와 같이 오리피스(4)의 단면적이 증대되면 도어의 개폐시 압력이 높아진 질소가스(N2)가 오리피스(4)를 통과할 때 그 양이 증대되어 신속히 타측으로 이동함으로써 조작력이 감소되는 것이다.On the other hand, as the temperature of the nitrogen gas (N 2 ) increases in proportion to the increase in temperature, as the amount of deformation of the bimetal 14 increases, both vertical support surfaces 12a and 12b of the adjusting plate body 11 become pistons ( 2) The cross-sectional area of the orifice 4 is increased by sliding toward the cylinder tube 1 side along both sides of the orifice 4 adjacent part of 2), and when the cross-sectional area of the orifice 4 is increased as described above, the pressure during opening and closing of the door is increased. When nitrogen gas (N 2 ) passes through the orifice (4), the amount is increased to move quickly to the other side to reduce the operating force.

이상과 같이 본 발명은 가스 리프터의 피스톤에 형성하는 오리피스의 단면적을 계절의 변화에 따라 증감 조절함으로써 도어를 개폐할 때 특히 여름철에 오리피 스에서 질소가스의 이동을 신속히 할 수 있게 하여서 그 조작력이 증대되는 것을 억제함으로써 힘이 적게 들고, 항상 도어의 조작력을 균일하게 유지함으로써 편의성이 향상되며, 어린이, 부녀자, 노약자 등도 간편하게 도어를 개폐할 수 있는 것이다.As described above, according to the present invention, the cross-sectional area of the orifice formed on the piston of the gas lifter is increased or decreased according to the change of the season, so that the operation force is improved when the door is opened and closed, especially during summer, when the orifice moves quickly. By suppressing the increase, the force is less, and the convenience is improved by keeping the operation force of the door uniform at all times, and children, women, the elderly and the like can easily open and close the door.

Claims (3)

실린더 튜브의 내부에 피스톤 로드를 외부에 돌출한 피스톤을 내장하고, 상기 피스톤에 적어도 1개 이상의 오리피스를 형성함과 동시에 실린더 튜브 내에 질소가스를 충전한 것에 있어서, 상기 오리피스의 단면을 4각형으로 형성하고, 상기 4각형 오리피스 내에 실린더 튜브 내에 충전한 질소가스의 온도변화에 비례하여 오리피스의 단면적을 증감하는 단면적 조절부재를 포함하고, 상기 단면적 조절부재는 조절판체의 폭을 상기 오리피스의 폭과 동일하게 형성하여 오리피스에 삽입하여서 그 양측벽에 지지함과 동시에 조절판체에 피스톤의 폭과 동일한 수직 지지면을 형성하여 피스톤의 오리피스 인접 부위의 양면에 지지하고, 상기 조절판체의 양단에 지지돌기를 피스톤의 양측면과 일정간격 유지되게 일체로 형성하여, 상기 지지돌기와 피스톤 사이에 바이메탈을 팽창이 적은 쪽을 실린더 튜브측을 향하도록 설치한 차량용 가스 리프터.A piston having a piston rod protruding from the outside is embedded in the cylinder tube, and at least one orifice is formed in the piston and nitrogen gas is filled in the cylinder tube. The cross section of the orifice is quadrangular. And a cross-sectional area adjusting member which increases or decreases the cross-sectional area of the orifice in proportion to the temperature change of the nitrogen gas filled in the cylinder tube in the quadrilateral orifice, wherein the cross-sectional area adjusting member equals the width of the adjusting plate body to the width of the orifice. It is formed and inserted into the orifice and supported on both side walls, and at the same time to form a vertical support surface on the adjusting plate body the same as the width of the piston to support on both sides of the orifice adjacent to the piston, the support protrusions on both ends of the control plate body It is formed integrally so that both sides and a constant interval, between the support protrusion and the piston A gas lifter for a vehicle in which a bimetal is placed on the cylinder tube side with less expansion. 삭제delete 제 1 항에 있어서, 바이메탈의 일측은 지지돌기에 접합하고, 타측은 피스톤의 양측에 요부를 형성하여 끼워 설치한 차량용 가스 리프터.The gas lifter for a vehicle according to claim 1, wherein one side of the bimetal is joined to the support protrusion, and the other side is formed by inserting recesses on both sides of the piston.
KR1020050067944A 2005-07-26 2005-07-26 Gas lifter for vehicle KR100705398B1 (en)

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KR100962878B1 (en) 2008-11-26 2010-06-09 현대자동차주식회사 Lifter of vehicle

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CN104354573B (en) * 2014-10-28 2016-08-17 芜湖赛德交通设备有限公司 A kind of automobile cab insulation Special door

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US5106065A (en) 1989-09-11 1992-04-21 Fichtel & Sachs Industries, Inc. Self-blocking gas spring with temperature-responsive bypass valve
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JPS58191341A (en) 1982-04-30 1983-11-08 Yamaha Motor Co Ltd Shock absorber
JPH01288646A (en) * 1988-05-13 1989-11-20 Fuji Rubber Co Ltd Shock absorber using shape memory alloy
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KR20000016710U (en) * 1999-02-05 2000-09-25 밍 루 Gas spring

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100962878B1 (en) 2008-11-26 2010-06-09 현대자동차주식회사 Lifter of vehicle

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