KR20020034137A - Hydraulic Instrument for Door - Google Patents

Hydraulic Instrument for Door Download PDF

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Publication number
KR20020034137A
KR20020034137A KR1020020020504A KR20020020504A KR20020034137A KR 20020034137 A KR20020034137 A KR 20020034137A KR 1020020020504 A KR1020020020504 A KR 1020020020504A KR 20020020504 A KR20020020504 A KR 20020020504A KR 20020034137 A KR20020034137 A KR 20020034137A
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KR
South Korea
Prior art keywords
oil chamber
door
spring
oil
piston
Prior art date
Application number
KR1020020020504A
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Korean (ko)
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KR100454738B1 (en
Inventor
이예민
Original Assignee
(주)베스트메탈라인
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Priority to KR10-2002-0020504A priority Critical patent/KR100454738B1/en
Publication of KR20020034137A publication Critical patent/KR20020034137A/en
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Publication of KR100454738B1 publication Critical patent/KR100454738B1/en

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Classifications

    • 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
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • 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
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • 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
    • E05Y2201/43—Motors
    • E05Y2201/448—Fluid motors; Details thereof
    • 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
    • E05Y2201/47—Springs
    • E05Y2201/474—Compression springs
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/10—Additional functions
    • E05Y2800/12—Sealing

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

PURPOSE: Hydraulic equipment for a door is provided to prevent a sudden rise of hydraulic pressure in a door closer or a floor hinge installed to a swinging door. CONSTITUTION: The hydraulic equipment for a door comprises a primary oil room(18) and a secondary oil room(18) divided by a piston(22) in a body(17), a body of revolution(24) formed in the primary oil room(18), a spring(12) installed to the secondary oil room(19), primary and secondary oil passages(20,21) connecting the primary oil room(18) and the secondary oil room(19), an airtight member(23) closing the opened end of the secondary oil room(19), a spring(12) installed to a through hole of a body and a pressure rise limiting device(10) provided with a piston installed to both sides of the spring and installed to the inside of the spring(22) of the secondary oil room(19).

Description

도어용 유압기구{Hydraulic Instrument for Door}Hydraulic Instrument for Door

본 발명은 도어용 유압기구에 관한 것으로, 특히 여닫이문에 설치되는 도어클로저나 플로어힌지에서 급격한 유압의 상승을 방지하는 수단이 구비된 도어용 유압기구에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic mechanism for a door, and more particularly, to a hydraulic mechanism for a door provided with means for preventing a sudden increase in hydraulic pressure in a door closer or a floor hinge installed in a swing door.

주지하는 바와 같이 도어에 설치되는 유압기구는 도어클로저나 플로어힌지가대표적인 것으로, 주로 여닫이문에 설치되어 상기 여닫이문이 급격히 닫히는 것을 방지하는 것이며, 이러한 유압기구를 첨부한 도면 도 1과 도 2로 도시하였다.As is well known, the hydraulic mechanism installed in the door is representative of the door closer or the floor hinge, and is mainly installed in the swing door to prevent the swing door from being closed rapidly. Shown.

이에 의하면 유압기구(100)는 몸체(101)의 내측에 회전체(108)가 형성된 제1오일실(102)과 스프링(106)이 설치된 제2오일실(103)이 형성되고, 상기 제2오일실의 개방된 단부는 기밀재(109)로 폐쇄되었다.As a result, the hydraulic mechanism 100 includes a first oil chamber 102 having a rotating body 108 formed inside the body 101 and a second oil chamber 103 having a spring 106 formed therein, and the second oil chamber 103 having the rotating body 108 formed therein. The open end of the oil chamber was closed with an airtight material 109.

또한, 제1오일실(102)과 제2오일실(103)은 피스톤(105)에 의하여 격리되며, 이러한 제1오일실(102)과 제2오일실(103)을 연결하는 제1, 2오일통로(104, 110)가 몸체(101)에 형성되어 구성된 것이다.In addition, the first oil chamber 102 and the second oil chamber 103 are isolated by the piston 105, and the first and second connecting the first oil chamber 102 and the second oil chamber 103. Oil passages 104 and 110 are formed on the body 101.

상기 제1오일통로(104)보다 제2오일통로(110)의 직경이 협소한데, 이는 도어를 개폐할 때에는 신속하게 개폐되고, 폐쇄될 때에는 서서히 폐쇄되도록 하기 위한 것이다.The diameter of the second oil passage 110 is narrower than that of the first oil passage 104, which is to open and close quickly when the door is opened and closed and to close slowly when the door is closed.

이러한 유압기구(100)는 도어에 설치되어 상기 도어가 개방되었을 때 유압과 스프링(106)에 의하여 자동으로 서서히 폐쇄되도록 하는 것이다.The hydraulic mechanism 100 is installed in the door to be automatically closed by the hydraulic pressure and the spring 106 when the door is opened.

즉, 도어와 회전체(108)가 연결되고 회전체(108)와 피스톤(105)이 연결되어 있어, 상기 도어를 개방시키면 회전체(108)가 도어를 따라 회동하게 되고, 이러한 회전체(108)의 회전에 의하여 피스톤(105)이 스프링(106)을 압축하며 제2오일실(103)측으로 이동하게 된다.That is, the door and the rotating body 108 are connected and the rotating body 108 and the piston 105 are connected. When the door is opened, the rotating body 108 rotates along the door, and the rotating body 108 By the rotation of the piston 105 is compressed to the spring 106 and moved to the second oil chamber 103 side.

이와 같이 제2오일실(103)이 압축되면 상기 제2오일실(103)에 수용된 오일이 제1오일통로(104)를 통하여 제1오일실(102)로 이동되며, 이후 개방된 도어를 놓으면 압축되었던 스프링(106)이 복귀되며 피스톤(105)을 제1오일실(102) 측으로 밀게되어 상기 피스톤(105)이 원래의 위치로 복귀되고, 이러한 피스톤(105)에 연결된 회전체(108)는 피스톤(105)과 함께 원래의 위치로 복귀되며, 아울러 회전체(108)에 연결된 도어도 원래의 위치로 복귀되어 폐쇄되는 것이다.As such, when the second oil chamber 103 is compressed, the oil contained in the second oil chamber 103 is moved to the first oil chamber 102 through the first oil passage 104. The spring 106 that has been compressed is returned and the piston 105 is pushed toward the first oil chamber 102 so that the piston 105 is returned to its original position, and the rotating body 108 connected to the piston 105 is The piston 105 is returned to its original position, and the door connected to the rotor 108 is also returned to its original position and closed.

이때, 피스톤(105)이 제1오일실(102)을 압축하기 때문에 상기 제1오일실(102)에 수용된 오일이 제2오일통로(110)를 통하여 제2오일실(103)로 다시 이동되어 가는데, 상기 제2오일통로(110)는 그 직경이 매우 협소하기 때문에 서서히 이동되고, 이에 따라 피스톤(105)이 급격히 복귀되지 않고 서서히 복귀되는 것이며, 그 결과 도어가 서서히 닫히는 것이다.At this time, since the piston 105 compresses the first oil chamber 102, the oil contained in the first oil chamber 102 is moved back to the second oil chamber 103 through the second oil passage 110. Since the diameter of the second oil passage 110 is very narrow, the second oil passage 110 is gradually moved, and thus the piston 105 is gradually returned instead of being suddenly returned. As a result, the door is gradually closed.

그러나 이러한 종래의 유압기구(100)는 제2오일실(103)에 과도한 압력이 급격하게 가해질 경우, 상기 제2오일실(103)에 수용된 오일이 기밀재(109)로 폐쇄된 개방단부를 통하여 유실되는 문제가 있다.However, in the conventional hydraulic mechanism 100, when excessive pressure is suddenly applied to the second oil chamber 103, the oil contained in the second oil chamber 103 is opened through an open end in which the airtight material 109 is closed. There is a problem of being lost.

즉, 도어를 갑자기 강한 힘으로 개방시킬 경우 피스톤(105)이 급격하게 제2오일실(13)로 이동하게 되고, 이에 따라 제2오일실(103)에 과도한 압력이 급격하게 가해지게 되나, 제1오일통로(104)를 통하여 오일이 빠져나가는 속도는 한계가 있어 상기 압력을 극복하지 못하게 된다.That is, when the door is suddenly opened with a strong force, the piston 105 suddenly moves to the second oil chamber 13, and thus excessive pressure is suddenly applied to the second oil chamber 103. The rate at which the oil exits through the one oil passage 104 is limited so that the pressure cannot be overcome.

따라서 오일이 기밀재(109)로 폐쇄된 개방단부를 통하여 유실되어 작동이 불량하게 되는 등의 문제가 있다.Therefore, there is a problem such that oil is lost through the open end closed by the airtight material 109, resulting in poor operation.

본 발명의 목적은 상기한 종래의 문제를 감안하여 유압기구의 제2오일실에 과도한 압력이 급격히 가해질 경우, 이를 흡수하는 수단을 구비함으로써, 도어를급하게 개방시키더라도 오일의 유실이 없도록 하여 작동이 원활하게 되는 도어용 유압기구를 제공함에 있다.The object of the present invention is to provide a means for absorbing the excessive pressure to the second oil chamber of the hydraulic mechanism in view of the above-mentioned conventional problems, so that the operation is prevented so that there is no loss of oil even if the door is urgently opened. It is to provide a hydraulic mechanism for the door to be smooth.

도 1 내지 도 2는 종래 도어용 유압기구를 도시한 설명도.1 to 2 are explanatory views showing a conventional hydraulic mechanism for the door.

도 3 은 본 발명에 의한 압력상승방지구를 도시한 설명도.3 is an explanatory view showing a pressure increase prevention apparatus according to the present invention.

도 4 내지 도 5는 본 발명에 의한 도어용 유압기구를 도시한 설명도.4 to 5 are explanatory views showing the hydraulic mechanism for the door according to the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10 : 압력상승방지구 11, 17 : 몸체 11a : 통공10: pressure increase prevention device 11, 17: body 11a: through hole

12, 23 : 스프링 13, 22 : 피스톤 14 : O-링12, 23: spring 13, 22: piston 14: O-ring

15 : 와셔 16 : 유압기구 18 : 제1오일실15 washer 16 hydraulic mechanism 18 first oil chamber

19 : 제2오일실 20 : 제1오일통로 21 : 제2오일통로19: 2nd oil passage 20: 1st oil passage 21: 2nd oil passage

24 : 기밀재 25 : 회전체24: airtight material 25: rotating body

이러한 목적을 달성하기 위한 본 발명은 몸체의 내측에 피스톤에 의하여 분할되는 제1오일실과 제2오일실과, 제1오일실에 형성된 회전체와, 제2오일실에 설치된 스프링과, 제1오일실과 제2오일실을 연결하는 제1, 2오일통로와, 제2오일실의 개방된 단부를 폐쇄하는 기밀재로 된 공지의 유압기구에 있어서, 몸체 통공에 설치된 스프링과, 외주연에 O-링이 구비되어 상기 스프링의 양측에 설치되는 피스톤으로 되는 압력상승방지구를 구비하고, 이러한 압력상승방지구를 상기 제2오일실에 설치된 스프링의 내측에 설치하여 되는 도어용 유압기구를 제안한다.The present invention for achieving this object is the first oil chamber and the second oil chamber divided by a piston inside the body, a rotating body formed in the first oil chamber, a spring installed in the second oil chamber, and the first oil chamber and In the well-known hydraulic mechanism which consists of the 1st and 2nd oil path which connects a 2nd oil chamber, and the airtight material which closes the open end of a 2nd oil chamber, The spring provided in the body through-hole and O-ring in outer periphery It is provided with a pressure increase prevention means that is provided with pistons provided on both sides of the spring, and proposes a hydraulic mechanism for the door which is installed inside the spring provided in the second oil chamber.

이에 따라 본 발명은 제2오일실에 과도한 압력이 급격하게 가해지더라도, 이러한 압력이 모두 흡수되므로 오일이 유실되지 않고, 이에 따라 작동이 불량하게 되는 원인이 제거되어 제품의 품질이 향상된다.Accordingly, in the present invention, even if excessive pressure is suddenly applied to the second oil chamber, all of these pressures are absorbed so that no oil is lost, thereby eliminating the cause of poor operation, thereby improving product quality.

상기와 같은 본 발명의 구성 및 작용을 첨부된 도면에 의거 상세히 설명하면 다음과 같다.Referring to the configuration and operation of the present invention as described above in detail based on the accompanying drawings as follows.

도 3 은 본 발명에 의한 압력상승방지구를 도시한 설명도이고, 도 4 내지 도 5는 본 발명에 의한 도어용 유압기구를 도시한 설명도이다.Figure 3 is an explanatory view showing a pressure increase prevention device according to the present invention, Figures 4 to 5 is an explanatory view showing a door hydraulic mechanism according to the present invention.

본 발명은 몸체(17)의 내측에 제1오일실(18)과 제2오일실(19)을 형성하고, 상기 제1오일실(18)에 회전체(24)를 형성하며, 제2오일실(19)에 스프링(22)을 설치한다. 아울러 제1오일실(18)과 제2오일실(19)을 연결하는 제1오일통로(20)와 제2오일통로(21)를 형성하되, 제1오일통로(20)보다 제2오일통로(21)의 직경을 협소하게 하고, 제2오일실(19)의 개방된 단부에 기밀재(23)를 설치하여 상기 개방된 단부를 폐쇄한다.According to the present invention, a first oil chamber 18 and a second oil chamber 19 are formed inside the body 17, and a rotating body 24 is formed in the first oil chamber 18, and a second oil is formed. The spring 22 is installed in the seal 19. In addition, a first oil passage 20 and a second oil passage 21 connecting the first oil chamber 18 and the second oil chamber 19 are formed, but the second oil passage is more than the first oil passage 20. The diameter of 21 is narrowed, and the airtight member 23 is installed in the open end of the 2nd oil chamber 19, and the open end is closed.

또한, 제2오일실(19)에 설치된 스프링(23)에 삽입 설치되는 압력상승방지구(10)를 형성하되, 이 압력상승방지구(10)는 몸체(11) 내부에 통공(11a)을 형성하고, 이러한 통공(11a)의 양측 단부가 개방되도록 하며, 상기 통공(11a)에 스프링(12)을 설치함과 아울러 상기 스프링(12)의 양측에 피스톤(13)을 설치한다.In addition, the pressure rise prevention device 10 is formed to be inserted into the spring 23 installed in the second oil chamber 19, the pressure increase prevention device 10 is provided with a through hole (11a) inside the body (11) It is formed, so that both ends of the through hole (11a) is opened, the spring 12 is installed in the through hole (11a) and the piston (13) is provided on both sides of the spring (12).

또한, 상기 피스톤(13)의 외주연에 O-링(14)을 설치하고, 피스톤(13)이 통공(11a)에서 이탈되지 않도록 와셔(15)를 설치한다.In addition, an O-ring 14 is installed on the outer circumference of the piston 13, and a washer 15 is provided so that the piston 13 does not escape from the through hole 11a.

이와 같이 구성된 본 발명은 도어가 급격하게 폐쇄되는 것을 방지하는 것으로, 상기 도어를 개방시키면 회전체(25)가 회동되며 피스톤(22)을 제2오일실(19)측으로 밀게 되고, 이에 따라 제2오일실(19)이 압축되어 상기 제2오일실(19)에 수용된 오일이 제1오일통로(20)를 통하여 제1오일실(18)로 이동됨과 아울러 스프링(23)이 압축된다.The present invention configured as described above prevents the door from being suddenly closed. When the door is opened, the rotating body 25 is rotated and the piston 22 is pushed toward the second oil chamber 19. Accordingly, the second The oil chamber 19 is compressed so that the oil contained in the second oil chamber 19 is moved to the first oil chamber 18 through the first oil passage 20 and the spring 23 is compressed.

이후 개방된 도어를 놓으면 압축되었던 스프링(23)이 복귀되려는 힘에 의하여 피스톤(22)이 제1오일실(18) 측으로 이동하게 되고, 그 결과 회전체(25)가 원래의 위치로 복귀하게 되어 도어가 폐쇄되는 것이며, 이때, 제1오일실(18)에 수용된 오일이 직경이 협소한 제2오일통로(21)를 통하여 제2오일실(19)로 서서히 다시 이동되어 가고, 이에 따라 피스톤(22)이 서서히 복귀하게 되어 도어가 서서히 닫히는것이다.Later, when the door is released, the piston 22 moves to the first oil chamber 18 by the force to return the compressed spring 23, and as a result, the rotor 25 is returned to its original position. The door is closed, and at this time, the oil contained in the first oil chamber 18 is gradually moved back to the second oil chamber 19 through the second oil passage 21 having a narrow diameter. 22) slowly returns, and the door closes slowly.

또한, 도어를 급격하게 개방하게 되면 피스톤(22)이 급격하게 제2오일실(19) 측으로 이동하게 되며, 이러한 과정에서 제2오일실(19)에 과도한 압력이 급격하게 가해지게 되는데, 이러한 압력은 압력상승방지구(10)에 의하여 모두 흡수 소멸되기 때문에 상기 제2오일실(19)에 수용된 오일이 유실되지 않게 된다.In addition, when the door is suddenly opened, the piston 22 is suddenly moved to the second oil chamber 19 side, and in this process, excessive pressure is suddenly applied to the second oil chamber 19. Since the silver is absorbed and extinguished by the pressure increase prevention device 10, the oil contained in the second oil chamber 19 is not lost.

즉, 제2오일실(19)에 과도한 압력이 급격하게 가해지게 되면, 이러한 압력이 압력상승방지구(10)의 피스톤(13)에도 미치게 되고, 이러한 압력에 의하여 피스톤(13)은 스프링(12)을 압박하며 통공(11a)의 내측으로 이동하게 된다.That is, when excessive pressure is suddenly applied to the second oil chamber 19, this pressure also extends to the piston 13 of the pressure increase prevention device 10, and by this pressure the piston 13 is spring 12 ) To move to the inside of the through hole (11a).

이와 같이 피스톤(13)이 통공(11a) 내측으로 이동하게 되면, 그 이동된 거리만큼 제2오일실(19)의 체적이 증가하는 것이므로, 증가된 만큼 압력이 상쇄되는 것이며, 압력의 정도에 따라 피스톤(13)의 이동거리도 다르게 되는 것이다.When the piston 13 moves inside the through hole 11a as described above, the volume of the second oil chamber 19 increases by the moved distance, and thus the pressure is canceled by the increased amount, depending on the degree of pressure. The movement distance of the piston 13 is also different.

이후, 제2오일실(19)에 가해지던 압력이 소멸되면 상기 피스톤(13)에 가해지던 압력도 소멸되고, 그 결과 스프링(12)의 복원력에 의하여 피스톤(13)이 원래의 위치로 복귀하게 되는데, 이때 상기 피스톤(13)은 원래의 위치에 이르게 되면 와셔(15)에 의하여 더 이상 이동되지 않는다.Thereafter, when the pressure applied to the second oil chamber 19 disappears, the pressure applied to the piston 13 also disappears, so that the piston 13 returns to its original position by the restoring force of the spring 12. In this case, the piston 13 is no longer moved by the washer 15 when it reaches the original position.

이와 같이 제2오일실(19)에 과도한 압력이 급격하게 가해지더라도 상기 압력이 흡수 소멸되기 때문에 제2오일실(19)에 수용된 오일이 기밀재(23)로 폐쇄된 개방 단부로 유실되지 않는 것이다.In this way, even if excessive pressure is suddenly applied to the second oil chamber 19, since the pressure is absorbed and extinguished, the oil contained in the second oil chamber 19 is not lost to the open end closed by the airtight member 23. .

상기한 바와 같이 본 발명은 도어에 설치되는 유압기구의 제2오일실에 압력이 상승되는 것을 방지하는 수단을 설치하여서 된 것으로, 도어를 급격하게 개방하여 상기 제2오일실에 과도한 압력이 급격하게 가해지더라도 압력상승방지구에 의하여 상기 압력이 흡수 소멸되기 때문에 오일이 압력을 극복하지 못하고 유실되어 작동이 불량하게 되는 현상이 발생되지 않으며, 이에 따라 제품의 품질이 향상되는 등의 유용한 효과가 있다.As described above, the present invention is to provide a means for preventing the pressure rise in the second oil chamber of the hydraulic mechanism to be installed in the door, the door is opened sharply, excessive pressure in the second oil chamber suddenly Even if it is applied, the pressure is prevented by absorbing and extinguishing the pressure by the pressure increase prevention mechanism so that the oil does not overcome the pressure and is lost, the operation does not occur, there is a useful effect such as improving the quality of the product.

Claims (1)

몸체(17)의 내측에 피스톤(21)에 의하여 분할되는 제1오일실(18)과 제2오일실(19)과, 제1오일실(18)에 형성된 회전체(24)와, 제2오일실(19)에 설치된 스프링(22)과, 제1오일실(18)과 제2오일실(19)을 연결하는 제1, 2오일통로(20, 21)와, 제2오일실(19)의 개방된 단부를 폐쇄하는 기밀재(23)로 된 공지의 유압기구에 있어서,Inside the body 17, the first oil chamber 18 and the second oil chamber 19 divided by the piston 21, the rotating body 24 formed in the first oil chamber 18, and the second Spring 22 provided in the oil chamber 19, the 1st and 2nd oil passages 20 and 21 which connect the 1st oil chamber 18 and the 2nd oil chamber 19, and the 2nd oil chamber 19 In a known hydraulic mechanism made of an airtight material 23 for closing an open end of 몸체(11) 통공(11a)에 설치된 스프링(12)과, 상기 스프링(12)의 양측에 설치되는 피스톤(13)으로 되는 압력상승방지구(10)를 상기 제2오일실(19)에 설치된 스프링(22)의 내측에 설치함을 특징으로 하는 도어용 유압기구.Body 11, a spring 12 provided in the through hole (11a), and a pressure increase prevention device (10) consisting of a piston (13) installed on both sides of the spring 12 is provided in the second oil chamber (19). Hydraulic mechanism for the door, characterized in that installed on the inner side of the spring (22).
KR10-2002-0020504A 2002-04-15 2002-04-15 Hydraulic Instrument for Door KR100454738B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160001011A (en) 2014-06-26 2016-01-06 김정규 Piston rod and manufacture method for floor hinge
CN106121426A (en) * 2016-08-24 2016-11-16 上海皇冠门控五金有限公司 Position adjustably spring

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3063024B2 (en) * 1995-07-27 2000-07-12 スガツネ工業株式会社 Damper mechanism
JP3339802B2 (en) * 1997-07-10 2002-10-28 スガツネ工業株式会社 Applied external force mitigation device for damper using highly viscous fluid
KR19990008133U (en) * 1998-11-21 1999-02-25 김성기 Hydraulic door automatic closing device with pressure chamber
KR200198717Y1 (en) * 2000-05-09 2000-10-02 김태선 Door closer
KR100400157B1 (en) * 2000-09-21 2003-10-01 정순자 a door concussion deadening apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160001011A (en) 2014-06-26 2016-01-06 김정규 Piston rod and manufacture method for floor hinge
CN106121426A (en) * 2016-08-24 2016-11-16 上海皇冠门控五金有限公司 Position adjustably spring

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