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KR20190142285A - Compressed Type Gas spring - Google Patents

Compressed Type Gas spring Download PDF

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Publication number
KR20190142285A
KR20190142285A KR1020190161111A KR20190161111A KR20190142285A KR 20190142285 A KR20190142285 A KR 20190142285A KR 1020190161111 A KR1020190161111 A KR 1020190161111A KR 20190161111 A KR20190161111 A KR 20190161111A KR 20190142285 A KR20190142285 A KR 20190142285A
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KR
South Korea
Prior art keywords
chamber
connector
gas spring
opened
shelf
Prior art date
Application number
KR1020190161111A
Other languages
Korean (ko)
Inventor
이종서
Original Assignee
이종서
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 이종서 filed Critical 이종서
Priority to KR1020190161111A priority Critical patent/KR20190142285A/en
Publication of KR20190142285A publication Critical patent/KR20190142285A/en
Priority to KR1020200166768A priority patent/KR20210070923A/en
Priority to PCT/KR2020/017676 priority patent/WO2021112630A2/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
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/061—Mono-tubular units
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/02—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with pneumatic piston brakes
    • 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
    • F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21—Brakes
    • E05Y2201/212—Buffers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/408—Function thereof for braking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/41—Function thereof for closing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

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

Abstract

The present invention relates to a gas spring device for maintaining a compressed state in a free state. A chamber (1) filled with high pressure gas is sealed to prevent gas leakage by both end seals (3, 4), respectively. The total pressure of a chamber (1) has the same pressure regardless of the position of a connector (5) through the connector (5) which is capable of fluid flow. Axially movable piston rods (6, 7) with different diameters are connected by the connector (5), respectively. A chamber (2) extends to the seal (4), and is maintained at atmospheric pressure by an air hole (8) connected to the outside. The piston rods (6, 7) with different diameters are connected to the connector (5) so that the piston rod (6) always remains in a compressed state of having been moved to the seal (4) in a free state due to a difference in force generated by the exposed cross-sectional areas (A, B) of the connector (5).

Description

압축형 가스스프링 {Compressed Type Gas spring}Compressed Type Gas Springs

본 발명은 압축형 가스스프링에 관한 것으로, 더욱 상세하게는 하향으로 개폐되는 도아나 선반에 적용되어 열림속도 및 닫힘력을 개선하는 압축형 가스스프링에 관한 것이다.The present invention relates to a compression type gas spring, and more particularly, to a compression type gas spring to be applied to a door or shelf that is opened downward to improve the opening speed and closing force.

일반적으로 사용되고 있는 팽창형 가스스프링은 내부 컨넥터 노출면적에 의한 압력 차로 인하여, 자유상태에서 피스톤로드가 항상 연장(돌출)되어 있다. In general, inflated gas springs, the piston rod always extends (protrudes) in the free state due to the pressure difference due to the exposed area of the internal connector.

닫힘상태에서는 개폐대상의 무게에 의하여 강제 압축상태로 되어 있다가,In the closed state, it is forcedly compressed by the weight of the opening and closing object,

열리면서 팽창력이 작용되어 열림 힘 감소 및 완전 열림 상태를 지지하며 닫힘 시에는 팽창력의 반력인 압축력으로 인하여 닫힘 속도를 줄여주는 구조이다. It is a structure that reduces the closing speed due to the compressive force, which is the reaction force of the expansion force, when the opening is applied to the expansion force to reduce the opening force and to fully open the state.

그러나 하향으로 개폐되는 도아나 선반의 경우,일반적인 팽창형 가스스프링과는 However, in the case of the door or shelf which opens downward, it is different from the general inflatable gas spring.

반대 방향의 힘이 필요하여 자동차의 트렁크나 테일게이트와 같이 안쪽에 설치가 불가하며 가스스프링과 같은 역할이 없는 상태에서 하향으로 개폐되는 도아나 선반을 열 때 자중과 무게 중심의 변화로 인하여 열려는 행위 주체 쪽으로 빠르게 열리면서 행위자 및 주변인들의 부상이 발생할 수 있고, 빠른 속도의 열림을 멈출 시 발생하는 진동 및 피로가 도아나 선반은 물론 상대방물로 전달되어 파손의 원인이 되기도 한다.It is not possible to install it inside, such as the trunk or tailgate of a car because it requires a force in the opposite direction, and when opening a door or shelf that opens and closes downward without a role such as a gas spring, Injury of the actors and the surrounding people may occur as they open rapidly to the actor, and vibration and fatigue generated when stopping the fast opening may be transmitted to the counter or the shelf as well as to cause damage.

또한 하향으로 개폐되는 도아나 선반의 자중이 무거울 시, 들어 올리면서 닫힘 시초기 많은 힘이 필요하여 혼자 힘으로는 닫기는 어려운 경우도 있다.In addition, when the weight of the door or shelf that is opened downward is heavy, it may be difficult to close by itself because it requires a lot of force at the beginning of closing.

본 발명은 이러한 문제점을 해결하기 위하여 제안된 것으로, 하향으로 개폐되는 The present invention has been proposed to solve this problem, it is opened and closed downwards

도아나 선반의 한쪽 또는 양쪽에 압축형 가스스프링을 장착하여 열림 속도를 줄여 줄 수 있으며, 닫힘시에는 닫힘력을 줄이는데 목적이 있다.Compression-type gas springs can be installed on one or both sides of the door or shelf to reduce the opening speed, and when closed, the purpose is to reduce the closing force.

하향으로 개폐되는 도아나 선반의 한쪽 또는 양쪽에 압축식 가스스프링을 설치하여Compression gas springs are installed on one or both sides of the door or shelf

무게별, 위치 및 무게 중심 이동에 따른 열림 속도 및 닫힘력을 챔버 1의 압력과The opening speed and closing force by weight, position and center of gravity movement are

피스톤 로드 사이즈 및 장착위치 조정을 통해 제어가 가능하며,Control is possible by adjusting the piston rod size and mounting position.

완전열림 상태에서 챔버 1의 체적 감소에 따른 압력 상승으로 최고 잠재 압축력을 가지게 되어 적은 힘으로도 초기 닫힘을 가능하게 한다.In the fully open state, the pressure rise due to the volume reduction of chamber 1 has the highest potential compressive force, enabling initial closing with less force.

또한 완전 열림 위치를 별도 스톱퍼 없이도 압축식 가스스프링에서 위치 제어 가능하며,자중이 아주 무겁거나, 열림 후 그 위에서 추가 하중이 가해 질수 있는 픽업 트럭의 도아 같은 경우, 와이어등과 함께 적용하여 압축형 가스스프링의 위치 제어 기능을 보완 할 수 있다.In addition, the fully open position can be controlled in the compressed gas spring without a separate stopper, and in the case of a pickup truck that has a very heavy weight or an additional load can be applied on it after opening, it is applied with a wire or the like to apply a compressed gas. The position control function of the spring can be complemented.

하향으로 개폐되는 도아나 선반의 빠른 열림 속도로 인하여, 행위 주체자나 주변인이 부상을 당할 수 있고, 빠른 열림 속도를 정지 시키기 위해서는 진동이나 피로가 누적되어 파손이 되기도 한다. Due to the fast opening speed of the door or shelf which is opened downward, the actor or the surrounding person may be injured. In order to stop the fast opening speed, vibration or fatigue may accumulate and be damaged.

또한 하향으로 개폐되는 도아나 선반은 거의 자중에 도달하는 힘으로 들어 올려 In addition, the door or shelf which opens and closes downwards is lifted by the force almost reaching its own weight.

닫아야 해서,큰 픽업트럭의 테일게이트나 짐이 실린 비행기 선반과 같은 경우 혼자 닫기 힘들어 하는 경우도 있다. In some cases, such as tailgates on large pickup trucks or airplane racks with luggage, it may be difficult to close them alone.

그러나 압축형 가스스프링 장착으로 현재 팽창형 가스스프링이 장착된 자동차 However, cars equipped with inflatable gas springs are now equipped with compressed gas springs.

트렁크나 테일게이트와 같이 장착 후 외관에 돌출이 되지 않으며It does not protrude on the exterior after mounting like a trunk or tailgate

개폐 속도제어 및 완전열림 위치제어가 가능하며, 닫힘력 감소를 시켜 안전성, Open / close speed control and full open position control are possible.

편의성, 내구성 및 감성품질까지 향상 시킬수 있는 장점이 있다.There is an advantage to improve convenience, durability and emotional quality.

도 1은 완전 압축상태 (자유 상태)의 압축형 가스스프링의 종 단면도이고
도 2는 완전 강제 팽창상태 (완전 열림상태)의 압축형 가스스프링의 종 단면도이고
도 3은 완전 압축상태 (자유상태)에서 완전 강제 팽창상태 (완전 열림상태)로,
다시 완전 압축상태 (자유상태)로순환 시 피스톤로드 6 끝단의 힘의 변화를
나타내는 그래프이며
도 4는 하향으로 개폐되는 도아나 선반에 압축형 가스스프링의 적용 도이며
도 5는 하향으로 개폐되는 도아나 선반에 압축형 가스스프링과 보조 스토퍼
(와이어)를 같이 사용하는 적용 도1 is a longitudinal sectional view of a compressed gas spring in a fully compressed state (free state);
2 is a longitudinal sectional view of a compressed gas spring in a fully forced expansion state (full open state);
3 is a completely forced expansion state (completely open state) in a fully compressed state (free state),
When circulating back to the fully compressed state (free state), the force change at the end of the piston rod 6
Is a graph that represents
Figure 4 is an application of the compression type gas spring to the door or shelf which is opened and closed downwards.
5 is a compression type gas spring and the auxiliary stopper on the door or shelf which is opened and closed downwards.
Application using (wire) together

본 발명은 자유상태에서는 항상 압축상태를 유지하게 되는 가스스프링으로The present invention is a gas spring that is always kept in a compressed state in the free state

압축상태를 유지하기 위한 가스스프링의 구조는 챔버 1은 대기압보다 높은 압력의 가스를 포함하고 있으며, 대상체의 무게나 조건에 따라 압력 조정이 가능하다. In the structure of the gas spring for maintaining the compressed state, the chamber 1 contains a gas having a pressure higher than atmospheric pressure, and the pressure can be adjusted according to the weight or condition of the object.

챔버 2는 외부와 연결된 에어홀 8에 의하여 대기압 유지하고 있어, 컨넥터 5의 Chamber 2 is maintained at atmospheric pressure by an air hole 8 connected to the outside.

노출 단면적 차이로 인하여 직경이 큰 로드 7쪽 대비 직경이 작은 피스톤로드 6쪽에 작용하는 힘이 높아 항상 자유상태에서 압축상태 유지를 가능하게 하는 것이다.Due to the difference in the cross-sectional area of exposure, the force acting on the smaller 6-diameter piston rod is higher than that of the larger 7-side rod, so that the compressed state can be maintained in the free state at all times.

즉, 챔버 1 내부에 위치한 컨넥터5에 걸리는 힘 및 힘의 방향은 피스톤로드 6의 That is, the force and direction of force applied to the connector 5 located inside the chamber 1 is

직경을 제외한 컨넥터 5의 노출 면적 A와 피스톤로드 7의 직경을 제외한 컨넥터 Exposed area A of connector 5 without diameter and connector except diameter of piston rod 7

5의 노출 면적 B가 차이로 결정되며, 같은 압력하의 챔버 1에서 노출 면적이 큰 The exposure area B of 5 is determined by the difference, and the large exposure area in chamber 1 under the same pressure is large.

A쪽으로 더 큰 힘이 작용하게 되어 피스톤로드 6이 씰링 4쪽 (챔버2쪽)으로 이동More force acts on the A side and the piston rod 6 moves to the sealing side 4 (chamber 2).

되는 압축형 가스스프링이 제작될 수 있다.Compressed gas springs can be produced.

또한 피스톤 로드 7의 컨넥트 반대쪽 끝단 단면을 챔버 1에 비해 낮은 대기압 압력 조건의 챔버 2에 위치 시킴으로써Also, by placing the end of the piston rod 7 opposite the connector in chamber 2 at a lower atmospheric pressure than chamber 1

노출 면적 A에 작용하는 힘이 노출 면적 B 및 챔버 2에 위치한 피스톤 로드 7의 끝단 노출 면적에 작용하는 힘의 합보다 높게 되어 항상 압축상태가 유지되는 The force acting on the exposed area A is higher than the sum of the forces acting on the exposed area of the end of the piston rod 7 located in the exposed area B and the chamber 2 so that compression is always maintained.

가스스프링의 원리이다.It is the principle of gas spring.

피스톤 6이 강제 팽창 시 (압축력의 반력 작용인 열림 시) 피스톤 6이 챔버 1 외부로 이동됨과 동시에, 직경이 큰 피스톤 7이 챔버 1 내부로 이동되어, 챔버 1의 When piston 6 is forcedly inflated (opened as a reaction force of the compressive force), the piston 6 moves out of chamber 1, while the large diameter piston 7 moves inside chamber 1,

전체 체적이 자유상태 대비 줄어들게 되면서 자유 상태보다 높은 압축력으로 증가하게 되어 하향 개폐 도아나 선반을 열때 자중에 의한 무게 중심 변화에 대응하여 감속력이 우수하게 적용하게 되며 완전 열림 상태에서는 최고점의 잠재 압축력을 지니고 있어 초기 닫힘력 감소에 우수한 효과를 가질수 있다.As the total volume decreases compared to the free state, it is increased to a higher compressive force than the free state, and the deceleration force is excellently applied in response to the change of the center of gravity due to its own weight when opening or closing a downward opening door or a shelf. It can have an excellent effect on reducing the initial closing force.

1. 고압의 챔버
2. 대기압의 챔버
3. 씰링
4. 씰링
5. 컨넥터
6. 피스톤로드 (직경이 작은)
7. 피스톤로드 (직경이 큰)
8. 에어홀
9. 하향으로 개폐되는 도아 또는 선반
10. 와이어
11. 압축형 가스스프링
A. 컨넥터 5단면적 - 피스톤로드 6 단면적
B. 컨넥터 5 단면적 - 피스톤로드 7 단면적1. Chamber of high pressure
2. Chamber of atmospheric pressure
3. Sealing
4. sealing
5. Connector
6. Piston rod (small diameter)
7. Piston rod (big diameter)
8. Air Hole
9. Door or shelf opened downward
10. Wire
11. Compression Gas Spring
A. Connector Cross Section 5-Piston Rod 6 Cross Section
B. Connector 5 Cross Section-Piston Rod 7 Cross Section

Claims (6)

본 발명은 자유상태 시 압축상태를 유지하기 위한 가스스프링 장치에 관한 것이고,
그 구조는 높은 압력의 가스에 의해 충전된 챔버 1은 각각 양 끝단 씰링 3와 4에 의하여 가스가 누출되지 않도록 밀봉되어 있으며, 챔버1의 전체 압력은 유체
흐름이 가능한 컨넥터 5를 통해 컨넥터 5의 위치에 상관없이 같은 압력을 갖는다. 축 방향으로 이동 가능한 직경이 다른 피스톤로드 6과 7이 각각 컨텍터 5에 의하여 연결되어 있다.
챔버 2는 씰링4에 연장되어 있으며, 외부와 연결된 에어홀 8에 의하여 챔버 2는 대기압 조건으로 유지되게 되어 있다.
컨넥터 5에 직경이 다른 피스톤 로드 6,7 이 연결되어, 피스톤로드 6은 컨넥터 5의 노출 단면적 A와 B에 의해 발생되는 힘의 차에 의하여 자유상태에서는 항상 씰링 4쪽으로 이동된 압축상태 유지함에 있어서, 챔버 1 내부에 단면적이 다른 피스톤 로드 6,7이 유체흐름이 가능한 컨넥트 5에 의해 연결된 구조 및 피스톤 로드의 7번 끝단이 챔버 2의 위치하는 구조.The present invention relates to a gas spring device for maintaining a compressed state in the free state,
Its structure is that chamber 1 filled with high pressure gas is sealed to prevent leakage of gas by sealings 3 and 4 at both ends, and the total pressure of chamber 1 is fluid
With flowable connector 5, the same pressure is applied regardless of the position of connector 5. Piston rods 6 and 7 of different axially movable diameters are connected by contactors 5, respectively.
The chamber 2 extends to the sealing 4, and the air chamber 8 connected to the outside keeps the chamber 2 at atmospheric pressure.
The piston rods 6 and 7 of different diameters are connected to the connector 5, so that the piston rod 6 is always moved to the sealing 4 in the free state due to the difference in force generated by the exposed cross sections A and B of the connector 5 A structure in which the piston rods 6 and 7 having different cross-sectional areas inside the chamber 1 are connected by a connector 5 capable of fluid flow, and the end of the piston rod 7 is positioned in the chamber 2. 청구항 1에 있어서 높은 압력의 가스에 의해 충전된 챔버 1과 외부와 연결된 에어홀을 통하여 대기압 상태로 유지되는 챔버 2 구조.The chamber 2 structure according to claim 1, which is maintained at atmospheric pressure through an air hole connected to the outside of the chamber 1 filled with the high pressure gas. 청구항 1에 있어서 하향으로 개폐되는 도아나 선반의 경우 강제 팽창력 작용으로 가스스프링의 작동 반력에 의하여 열림 시 감속 효과.The decelerating effect of the first door or the shelf which is opened and closed downward when opened by the operation reaction force of the gas spring by the forced expansion force action. 청구항 1에 있어서 완전 열림 시 씰링 3과 컨넥터 5가 접촉되어 하향으로 개폐되는 도아나 선반이 완전 열림 위치 설정 및 열림 위치 지지.The method according to claim 1, when the opening or the shelf that the sealing 3 and the connector 5 is in contact with the opening and closing downward when fully opened, the fully open positioning and open position support. 청구항 1에 있어서 하향으로 개폐되는 도아나 선반의 경우 자유상태인 압축상태로 돌아가려는 가스스프링의 작동력에 의하여 닫힘력 감소.The method of claim 1, in the case of the door or shelf which is opened and closed downward, the closing force is reduced by the operating force of the gas spring to return to the free state of compression. 청구항 4에 있어서 하향으로 개폐되는 도아나 선반의 완전 열림 시, 와이어등을 추가 장착을 하여 압축형 가스스프링의 완전 열림 위치 지지 능을 보완.
The fully open position support of the compressed gas spring is supplemented by additionally attaching a wire or the like when the door or shelf opened or closed downward is completely opened.
KR1020190161111A 2019-12-05 2019-12-05 Compressed Type Gas spring KR20190142285A (en)

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KR1020190161111A KR20190142285A (en) 2019-12-05 2019-12-05 Compressed Type Gas spring
KR1020200166768A KR20210070923A (en) 2019-12-05 2020-12-02 Compressed type fluid spring apparatus
PCT/KR2020/017676 WO2021112630A2 (en) 2019-12-05 2020-12-04 Compression-type fluid spring device

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US10850144B2 (en) 2017-06-14 2020-12-01 Victaulic Company Preaction sprinkler valve assemblies, related dry sprinkler devices, and compressive activation mechanism

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