KR20200021193A - Door closer - Google Patents

Door closer Download PDF

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Publication number
KR20200021193A
KR20200021193A KR1020180096632A KR20180096632A KR20200021193A KR 20200021193 A KR20200021193 A KR 20200021193A KR 1020180096632 A KR1020180096632 A KR 1020180096632A KR 20180096632 A KR20180096632 A KR 20180096632A KR 20200021193 A KR20200021193 A KR 20200021193A
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KR
South Korea
Prior art keywords
door
magnet
cylinder body
closed
rotational
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KR1020180096632A
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Korean (ko)
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박은미
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박은미
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Publication date
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Priority to KR1020180096632A priority Critical patent/KR20200021193A/en
Publication of KR20200021193A publication Critical patent/KR20200021193A/en

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    • 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
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/227—Additional arrangements for closers, e.g. for holding the wing in opened or other position mounted at the top of wings, e.g. details related to closer housings, covers, end caps or rails therefor
    • 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
    • E05F3/102—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 with rack-and-pinion transmission between driving shaft and piston within the closer housing
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E05Y2201/448—Fluid motors; Details thereof
    • E05Y2201/454—Cylinders

Landscapes

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

Abstract

The present invention relates to a door closer to completely close a door to a doorframe. According to the present invention, the door closer comprises: a cylinder body (10) installed on the upper part of a door (1) and having a vertical rotary shaft (11) upwardly protruding therefrom; a rotational arm (20) coupling one end to the vertical rotary shaft (11) of the cylinder body (10); a connection arm (21) rotationally coupling one end to the other end of the rotational arm (20) and rotationally coupling the other end to a doorframe (2); a fixed magnet (30) formed in a ring shape to be fixed on the outer surface of the cylinder body (10), penetrating the vertical rotary shaft (11) thereinto, and having N and S poles alternately arranged in a circumferential direction; and a rotational magnet (40) formed in a ring shape to be rotationally and integrally coupled to the vertical rotary shaft (11) of the cylinder body (10), coming in contact with the upper surface of the fixed magnet (30) or surrounding the outer circumferential part of the fixed magnet (30), and having N and S poles alternately arranged in a circumferential direction. When the same polarities of the rotational and fixed magnets (40, 30) approach while the door (1) is closed by restoration force of a spring of the cylinder body (10), the closing speed of the door (1) is decreased by repulsive force between the rotational and fixed magnets (40, 30). Moreover, when the opposite polarities of the rotational and fixed magnets (40, 30) approach while the door (1) is continuously closed, the door (1) is completely closed by the attractive force between the rotational and fixed magnets (40, 30).

Description

도어클로저{Door closer}Door closer {Door closer}

본 발명은 도어클로저에 관한 것으로, 보다 상세하게는 여닫이 도어에 설치되어 열린 도어를 자동으로 닫히게 하는 도어클로저에 관한 것이다. The present invention relates to a door closer, and more particularly to a door closer installed in the swing door to automatically close the open door.

일반적으로 도어클로저는 개방된 여닫이 도어를 자동으로 닫히게 하는 것으로서, 도어에 설치되는 실린더바디와, 일단이 상기 실린더바디에 결합된 회동암과, 일단이 회동암에 힌지결합되고 타단이 문틀에 힌지결합된 연결암을 포함한다. 그리고 실린더바디의 내부에는 작동오일이 흐르는 유로와, 스프링과, 이 스프링을 가압하며 측면에 랙이 구비된 피스톤과, 이 피스톤의 랙과 치합되는 피니언이 구비되고, 실린더바디의 외부에는 피니언의 수직회전축이 상향 돌출되며, 회동암의 일단이 실린더바디의 수직회전축에 결합된다. 이에 따라, 도어가 개방되면 회동암이 회전되면서 수직회전축이 회전되어 피스톤이 전진함으로써 스프링이 압축되고 도어를 놓게 되면 스프링의 복원력에 의해 도어가 신속하게 닫히게 되며, 일정위치에서는 작동오일의 유압에 의해 도어가 서서히 닫히게 된다. In general, the door closer is to automatically close the open swing door, the cylinder body is installed on the door, the pivot arm is coupled to one end of the cylinder body, one end is hinged to the pivot arm and the other end is hinged to the door frame Included connecting arm. Inside the cylinder body, there is a flow path through which the working oil flows, a spring, a piston having a rack that presses the spring, and a pinion engaged with the rack of the piston. The rotating shaft protrudes upward, and one end of the rotating arm is coupled to the vertical rotating shaft of the cylinder body. Accordingly, when the door is opened, the pivot arm rotates as the pivot arm rotates, the piston moves forward, the spring is compressed, and when the door is released, the door is quickly closed by the restoring force of the spring. The door closes slowly.

그런데 종래의 도어클로저는 도어가 반복적으로 개폐됨에 따라 스프링이 신축되면서 복원력이 저하되어 도어가 완전히 닫히지 않게 되는 문제가 있다. 이에 따라, 실내의 소리가 외부로 새어나가거나 외부의 소리가 실내로 유입되어 소음으로 인해 업무 등이 방해를 받게 되며, 실내의 냉기와 온기가 외부로 새어나가서 냉난방비용도 증가되는 문제가 있다. 한편, 작동오일의 점도가 기온에 따라 변하면서 특히 여름철에 유압에 의해 도어가 서서히 닫히지 않고 빨리 닫히게 되어 손이 끼이는 등 안전사고가 발생되는 문제가 있다. However, the conventional door closer has a problem that the restoring force is reduced as the spring is stretched as the door is repeatedly opened and closed so that the door is not completely closed. Accordingly, the sound of the room is leaked to the outside or the outside sound is introduced into the room to interfere with work due to the noise, there is a problem that the cooling and heating costs of the room is leaked to the outside to increase the heating and cooling costs. On the other hand, as the viscosity of the operating oil changes depending on the temperature, there is a problem that a safety accident occurs such that the door closes quickly due to hydraulic pressure, especially during summer, such that the hand is caught.

한국 등록특허공보 제10-0265254호Korean Patent Publication No. 10-0265254

본 발명은 전술한 바와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 손이 끼일 수 있는 도어의 위치에서는 도어를 보다 천천히 닫히도록 하여 손이 끼이는 등의 안전사고를 예방하면서도 도어가 완전히 닫히도록 하여 도어가 완전히 닫히지 않아서 소음으로 인한 업무방해 등이 방지되고 냉난방비도 절감되는 도어클로저를 제공하는 것에 있다. The present invention is to solve the problems as described above, the object of the present invention is to close the door more slowly in the position of the door can be pinched by the door is completely closed while preventing the safety accident such as pinching the hand. It is to provide a door closer that prevents work interruption due to noise, and also reduces heating and cooling costs by not closing the door completely.

본 발명의 특징에 따르면, 도어(1)의 상부에 설치되며, 내부에는 유로와, 스프링과, 이 스프링을 가압하며 측면에 랙이 구비된 피스톤과, 이 피스톤의 랙과 치합되는 피니언이 구비되고, 외부면에는 피니언의 수직회전축(11)이 외향 돌출된 실린더바디(10); 일단이 상기 실린더바디(10)의 수직회전축(11)에 결합되어 수직회전축(11)을 회전시키는 회동암(20); 및 일단이 상기 회동암(20)의 타단에 회전가능하게 결합되며 타단이 문틀(2)에 회전가능하게 결합되는 연결암(21);을 포함하는 도어클로저에 있어서, 링 형상으로 이루어져서 상기 실린더바디(10)의 외부면에 고정되되 수직회전축(11)이 관통되며, 원주방향을 따라 N극과 S극이 교호 배치된 고정자석(30); 및 링 형상으로 이루어져서 상기 실린더바디(10)의 수직회전축(11)에 일체로 회전가능하게 결합되되 상기 고정자석(30)의 상면에 접하거나 또는 고정자석(30)의 외측 둘레부를 감싸고, 원주방향을 따라 N극과 S극이 교호 배치된 회전자석(40);을 포함하며, 도어(1)가 실린더바디(10)의 스프링의 복원력에 의해 닫히다가 회전자석(40)과 고정자석(30)이 서로 같은 극성끼리 근접되면 회전자석(40)과 고정자석(30)의 척력에 의해 도어(1)가 닫히는 속도가 저하되고, 도어(1)가 계속 닫히면서 회전자석(40)과 고정자석(30)이 서로 다른 극성끼리 근접되면 회전자석(40)과 고정자석(30)의 인력에 의해 도어(1)가 완전히 닫히는 것을 특징으로 하는 도어클로저가 제공된다. According to a feature of the invention, it is installed on the upper part of the door (1), there is provided with a flow path, a spring, a piston having a rack on the side to press the spring and a pinion engaged with the rack of the piston, , The outer surface of the cylinder body 10, the vertical rotation shaft 11 of the pinion protrudes outward; A rotation arm 20 having one end coupled to the vertical rotation shaft 11 of the cylinder body 10 to rotate the vertical rotation shaft 11; And a connecting arm 21 having one end rotatably coupled to the other end of the pivot arm 20 and the other end rotatably coupled to the door frame 2, wherein the door closer comprises a ring shape. A fixed magnet 30 fixed to an outer surface of the 10 and having a vertical rotation shaft 11 penetrated therein and having an N pole and an S pole alternately disposed along the circumferential direction; And formed in a ring shape is rotatably coupled to the vertical rotation shaft 11 of the cylinder body 10 in contact with the upper surface of the stator magnet 30 or wrap around the outer periphery of the stator magnet 30, circumferential direction Rotation magnet 40 is arranged alternately with the north pole and the south pole; The door 1 is closed by the restoring force of the spring of the cylinder body 10, the rotating magnet 40 and the stationary magnet 30 When the same polarity is close to each other, the speed at which the door 1 is closed by the repulsive force of the rotating magnet 40 and the stator magnet 30 is decreased, and the rotating magnet 40 and the stator magnet ( The door closer is provided, characterized in that the door (1) is completely closed by the attraction of the rotating magnet 40 and the stationary magnet 30 when the different polarities are close to each other.

이상에서와 같이 본 발명에 의하면, 기존의 도어클로저에 간단한 부품을 추가함으로써 구조가 간단하면서도 종래 도어와 문틀 사이에 손이 끼일 수 있는 문제 및 도어가 완전히 닫히지 않는 문제가 해결된다. 즉, 도어(1)에 설치된 실린더바디(10)의 수직회전축(11)에 링 형상의 고정자석(30)이 끼워지고, 도어(1)의 회전에 의해 회전되는 수직회전축(11)에 일체로 회전가능하게 결합되는 링 형상의 회전자석(40)이 구비되어, 도어(1)가 닫히면서 회전자석(40)이 회전되어 고정자석(30)과 서로 동일한 극성끼리 근접되면 척력이 작용하여 도어(1)가 보다 천천히 닫히므로 손이 끼이는 등 안전사고가 방지되고, 도어(1)가 계속 닫히면서 회전자석(40)이 회전되어 고정자석(30)과 서로 다른 극성끼리 근접되면 인력이 작용하여 도어(1)가 문틀(2)에 완전히 닫히게 되어 내외부 소음의 유출입이 차단되어 업무방해 등이 방지되며 냉온기의 유출이 방지되어 냉난방비가 절감된다. According to the present invention as described above, by adding a simple part to the existing door closer, the problem that the hand is pinched between the conventional door and the door frame while the structure is simple, and the problem that the door is not completely closed. That is, a ring-shaped stator magnet 30 is fitted to the vertical rotation shaft 11 of the cylinder body 10 installed in the door 1, and integrally with the vertical rotation shaft 11 rotated by the rotation of the door 1. A ring-shaped rotating magnet 40 is rotatably coupled, and when the door 1 is closed, the rotating magnet 40 is rotated so that the same polarities as the stator magnets 30 are close to each other so that the repulsive force acts. 1) is closed more slowly, so that safety accidents such as hand pinching are prevented, and when the door 1 continues to be closed, the rotating magnet 40 is rotated so that the stationary magnet 30 and the different polarities are close to each other. The door 1 is completely closed to the door frame 2 to block the inflow and outflow of internal and external noise to prevent work disruption, and to prevent the leakage of cold and hot air, thereby reducing heating and cooling costs.

도 1은 본 발명에 따른 도어클로저의 일실시예를 도시한 사시도
도 2는 상기 실시예의 요부 분해사시도
도 3 및 도 4는 상기 실시예의 작동상태도1 is a perspective view showing an embodiment of a door closer according to the present invention
2 is an exploded perspective view of main parts of the embodiment;
3 and 4 is an operating state diagram of the embodiment

상술한 본 발명의 목적, 특징들 및 장점은 다음의 상세한 설명을 통하여 보다 분명해질 것이다. 이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 설명하면 다음과 같다.The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

도 1 내지 도 4는 본 발명의 일실시예에 따른 도어클로저를 도시한 도면이다. 도시된 바와 같이, 본 발명의 일실시예에 따른 도어클로저는 도어(1)의 상부에 설치되는 실린더바디(10)와, 이 실린더바디(10)와 문틀(2)을 연결하는 회동암(20) 및 연결암(21)과, 상기 실린더바디(10)에 구비된 고정자석(30)과, 상기 회동암(20)에 구비되되 고정자석(30)과 자력이 작용하는 거리에 구비된 회전자석(40)을 포함한다. 1 to 4 is a view showing a door closer according to an embodiment of the present invention. As shown, the door closer according to an embodiment of the present invention is a cylinder body 10 is installed on the upper portion of the door 1, the pivot arm 20 connecting the cylinder body 10 and the door frame 2 ) And the connecting arm 21, the stator magnet 30 provided in the cylinder body 10, and the rotating magnet 20 is provided on the rotating arm 20, the rotating magnet provided at a distance between the magnetic force And 40.

이때, 실린더바디(10)는 주지된 바와 같이 내부에는 작동오일이 흐르는 유로, 스프링, 스프링을 가압하고 측면에 랙이 구비된 피스톤 및 이 피스톤의 랙과 치합되는 피니언이 구비되고, 상면 및 하면에는 피니언의 수직회전축(11)이 상향 및 하향 돌출된다. 또한 회동암(20)은 주지된 바와 같이 일단이 실린더바디(10)의 수직회전축(11)에 일체로 회전가능하게 결합되며, 연결암(21)은 일단이 회동암(20)의 타단에 회전가능하게 결합되고 타단이 문틀(2)에 회전가능하게 결합된다. 이에 따라, 도어(1)를 개방시키면 회동암(20)이 회전됨에 따라 수직회전축(11)을 회전시켜 랙과 피니언이 치합되어 피스톤이 전진하므로 스프링이 압축되고, 도어(1)를 놓게 되면 개방된 도어(1)가 실린더바디(10)의 스프링의 복원력에 의해 닫히다가 일정위치에 도달하면 작동오일의 유압에 의해 닫히는 속도가 조절되는 것은 종래와 같다. At this time, the cylinder body 10 is provided with a flow path, a spring, a spring which presses the spring, and a piston having a rack on the side, and a pinion engaged with the rack of the piston, as shown in the upper and lower surfaces. The vertical axis of rotation 11 of the pinion projects upward and downward. In addition, the rotating arm 20 is one end rotatably coupled to the vertical rotation shaft 11 of the cylinder body 10, as is well known, one end of the connecting arm 21 is rotated to the other end of the rotating arm 20 It is possibly coupled and the other end is rotatably coupled to the door frame (2). Accordingly, when the door 1 is opened, as the pivot arm 20 is rotated, the vertical rotation shaft 11 is rotated so that the rack and pinion are engaged with the piston to move forward, so that the spring is compressed, and when the door 1 is released, the door 1 is opened. When the door 1 is closed by the restoring force of the spring of the cylinder body 10 and reaches a predetermined position, the closing speed is adjusted as in the prior art by the hydraulic pressure of the operating oil.

상기 고정자석(30)은 링 형상으로 이루어져서 실린더바디(10)의 외부면에 고정되는데, 도 1 및 도 2와 같이 실린더바디(10)의 저면에 고정되되 고정자석(30)의 중앙으로 실린더바디(10)의 수직회전축(11)이 관통된다. 수직회전축(11)이 회전되더라도 고정자석(30)은 실린더바디(10)에 고정된 상태를 유지한다. 그리고 고정자석(30)은 원주방향을 따라 N극과 S극이 교호 배치된다. 도 2와 같이 고정자석(30)에는 N극과 S극이 각각 3개씩 교호 배치된 것을 예시하였다. The stator magnet 30 is formed in a ring shape and is fixed to the outer surface of the cylinder body 10, as shown in FIGS. 1 and 2, and is fixed to the bottom of the cylinder body 10, but the cylinder body toward the center of the stator magnet 30. The vertical axis of rotation 11 of 10 penetrates. Even if the vertical rotating shaft 11 is rotated, the stator magnet 30 maintains a fixed state to the cylinder body (10). In addition, the stator 30 has N poles and S poles alternately arranged along the circumferential direction. As illustrated in FIG. 2, the stator magnets 30 alternately have three N poles and three S poles.

상기 회전자석(40)은 링 형상으로 이루어져서 실린더바디(10)의 수직회전축(11)에 일체로 회전가능하게 결합되는데, 도 1 및 도 2와 같이 고정자석(30)의 상(하)면에 접하도록 실린더바디(10)의 저면으로 돌출된 수직회전축(11)에 일체로 회전가능하게 결합된다. 이때, 회전자석(40)은 고정자석(30)의 외측 둘레부를 감싸는 형태로 배치될 수도 있다. 그리고 회전자석(40)도 고정자석(30)과 같이 원주방향을 따라 N극과 S극이 교호 배치되는데, 도 2와 같이 N극과 S극이 각각 3개씩 교호 배치된 것을 예시하였다. 본 실시예의 도면에서는, 고정자석(30)과 회전자석(40)의 N극은 빨강색 S극은 파란색으로 도시하였다. 또한 고정자석(30)과 회전자석(40)이 실린더바디(10)의 상면으로 돌출된 수직회전축(11)에 결합되는 형태도 가능하다. The rotating magnet 40 is formed in a ring shape is rotatably coupled to the vertical rotation shaft 11 of the cylinder body 10, as shown in Figure 1 and 2 on the upper (lower) surface of the stator magnet 30 It is integrally rotatably coupled to the vertical axis of rotation (11) protruding to the bottom of the cylinder body 10 to be in contact. At this time, the rotating magnet 40 may be disposed in a form surrounding the outer peripheral portion of the stator magnet (30). In addition, as shown in the fixed magnet 30, the rotating magnet 40 alternately arranges the N pole and the S pole, and as illustrated in FIG. 2, three N poles and the S pole are alternately arranged. In the drawing of this embodiment, the red pole of the N pole of the stator magnet 30 and the rotating magnet 40 is shown in blue. In addition, the stator magnet 30 and the rotating magnet 40 may be coupled to the vertical rotation shaft 11 protruding to the upper surface of the cylinder body (10).

한편, 도어(1)가 회전되면 회동암(20)이 연결암(21)과의 링크결합으로 인해 회전되어 실린더바디(10)의 수직회전축(11)이 회전되므로, 회전자석(40)이 고정자석(30)에 대해 수직회전축(11)을 중심으로 회전된다. 이와 같이, 회전자석(40)은 도어(1)의 회전에 따라 수직회전축(11)과 함께 회전되면서 N극과 S극이 고정자석(30)의 N극과 S극과 근접되거나 멀어지면서 척력과 인력이 발생된다. 이때, 도어(1)가 스프링의 복원력에 의해 닫히다가 작동오일의 유압에 의해 서서히 닫히는 구간에 진입할 때 도어(1)의 회전에 따라 회전자석(40)과 고정자석(30)이 서로 같은 극성이 근접되어 척력이 작용하고 도어(1)가 문틀(2)에 완전히 닫히기 직전에 회전자석(40)과 고정자석(30)이 서로 다른 극성이 근접되어 인력이 작용하도록 회전자석(40)의 극성과 고정자석(30)의 극성의 상호위치관계를 설정한다. 예를 들면, 도어(1)가 작동오일에 의해 서서히 닫히는 구간에 진입하여 도어(1)가 완전히 닫히기까지 도어(1)의 회전각만큼 회전자석(40)이 회전될 때 회전자석(40)의 극성이 고정자석(30)의 극성과 서로 같은 극성에 근접되다가 다시 다른 극성에 근접되는 형태가 되도록 회전자석(40)과 고정자석(30)의 극성의 상호위치관계를 적절히 조절하여 회전자석(40)과 고정자석(30)을 각각 설치한다. 경우에 따라, 고정자석(30) 및 회전자석(40)에서 각각 N극과 S극의 면적을 다르게 하거나, 각각 복수개의 N극끼리의 면적 또는 S극끼리의 면적을 다르게 할 수 있다. On the other hand, when the door 1 is rotated, the rotating arm 20 is rotated due to the link coupling with the connecting arm 21, so that the vertical rotation shaft 11 of the cylinder body 10 is rotated, the rotating magnet 40 is fixed The magnet 30 is rotated about the vertical axis of rotation 11. As such, the rotating magnet 40 is rotated together with the vertical rotation shaft 11 in accordance with the rotation of the door (1) while the north pole and the south pole close to or away from the north pole and the south pole of the stationary magnet 30 Manpower is generated. At this time, when the door 1 is closed by the restoring force of the spring and gradually enters the section that is closed by the hydraulic pressure of the operating oil, the rotating magnet 40 and the stator magnet 30 have the same polarity as the door 1 rotates. The polarity of the rotating magnet 40 so that the rotational magnet 40 and the stationary magnet 30 are different polarity close to each other immediately before the repulsive force acts and the door 1 is completely closed to the door frame 2. And the mutual positional relationship between the polarity of the and the stator magnet (30). For example, when the rotating magnet 40 is rotated by the rotation angle of the door 1 until the door 1 enters a section in which the door 1 is gradually closed by the operating oil and the door 1 is completely closed, The polarity of the rotating magnet 40 and the stator magnet 30 by properly adjusting the mutual position relationship between the polarity of the stator magnet 30 and the same polarity close to the other polarity again to the other polarity form appropriately, the rotating magnet (40) ) And the stationary magnet 30 are installed respectively. In some cases, the areas of the N pole and the S pole may be different from each other in the stator magnet 30 and the rotating magnet 40, or the areas of the plurality of N poles or the areas of the S poles may be different.

이와 같이 구성된 본 발명의 일실시예에 따른 도어클로저는 개방된 도어(1)가 실린더바디(10)의 스프링의 복원력에 의해 신속하게 닫히며, 완전히 닫히기 전 일정위치에서는 유압에 의해 상대적으로 천천히 닫힌다. 이때, 도어(1)가 천천히 닫히는 구간에서, 도 3과 같이 도어(1)가 닫히면서 회전자석(40)과 고정자석(30)이 각각 화살표방향으로 회전됨에 따라 회전자석(40)의 N극과 S극이 각각 고정자석(30)의 N극과 S극에 근접되면서 척력이 발생되므로 즉, 도어(1)가 닫히는 방향으로 갈수록 척력이 더 크게 작용하므로 도어(1)가 보다 천천히 닫히게 된다. 이에 따라, 도어(1)에 손이 끼이는 등 안전사고가 보다 확실하게 예방된다. 또한 도 4와 같이 도어(1)가 계속 닫히면서 회전자석(40)과 고정자석(30)이 각각 화살표방향으로 회전됨에 따라 회전자석(40)의 N극과 S극이 각각 고정자석(30)의 S극과 N극에 근접되면서 인력이 발생되므로 즉, 도어(1)가 닫히는 방향으로 갈수록 인력이 더 크게 작용하므로 도어(1)가 완전히 닫히게 된다. 이에 따라, 도어(1)가 완전히 닫히지 않을 경우 내외부 소리의 유출입으로 업무 등이 방해를 받는 것이 방지되고 냉난방비도 절감된다. The door closer according to the embodiment of the present invention configured as described above is quickly closed by the restoring force of the spring of the cylinder body 10, and closes relatively slowly by hydraulic pressure at a certain position before being completely closed. . At this time, in the section in which the door 1 is closed slowly, as the door 1 is closed as shown in FIG. 3, the rotating magnet 40 and the stator magnet 30 are rotated in the direction of the arrow, respectively, as the N pole of the rotating magnet 40. Since the repulsive force is generated while the S poles are close to the N pole and the S pole of the stator magnet 30, that is, the repulsive force acts more toward the closing direction of the door 1, so that the door 1 is closed more slowly. Accordingly, safety accidents such as pinching hands in the door 1 can be prevented more reliably. In addition, as the door 1 continues to be closed as shown in FIG. 4, as the rotor magnet 40 and the stationary magnet 30 are rotated in the direction of the arrow, respectively, the N pole and the S pole of the rotor magnet 40 are the stationary magnets 30, respectively. Since the attraction force is generated while approaching the S pole and the N pole, the attraction force acts more toward the direction in which the door 1 is closed, so that the door 1 is completely closed. Accordingly, when the door 1 is not completely closed, work and the like are prevented by the inflow and outflow of internal and external sounds, and the heating and cooling costs are also reduced.

이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명백할 것이다.The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 : 도어 2 : 문틀
10 : 실린더바디 20 : 회동암
30 : 고정자석 40 : 회전자석1: door 2: door frame
10: cylinder body 20: rotating arm
30: stator magnet 40: rotating magnet

Claims (1)

도어(1)의 상부에 설치되며, 내부에는 유로와, 스프링과, 이 스프링을 가압하며 측면에 랙이 구비된 피스톤과, 이 피스톤의 랙과 치합되는 피니언이 구비되고, 상면에는 피니언의 수직회전축(11)이 상향 돌출된 실린더바디(10); 일단이 상기 실린더바디(10)의 수직회전축(11)에 결합된 회동암(20); 및 일단이 상기 회동암(20)의 타단에 회전가능하게 결합되며 타단이 문틀(2)에 회전가능하게 결합되는 연결암(21);을 포함하는 도어클로저에 있어서,
링 형상으로 이루어져서 상기 실린더바디(10)의 외부면에 고정되되 수직회전축(11)이 관통되며, 원주방향을 따라 N극과 S극이 교호 배치된 고정자석(30); 및
링 형상으로 이루어져서 상기 실린더바디(10)의 수직회전축(11)에 일체로 회전가능하게 결합되되 상기 고정자석(30)의 상면에 접하거나 또는 고정자석(30)의 외측 둘레부를 감싸고, 원주방향을 따라 N극과 S극이 교호 배치된 회전자석(40);을 포함하며,
도어(1)가 실린더바디(10)의 스프링의 복원력에 의해 닫히다가 회전자석(40)과 고정자석(30)이 서로 같은 극성이 근접되면 회전자석(40)과 고정자석(30)의 척력에 의해 도어(1)가 닫히는 속도가 저하되고, 도어(1)가 계속 닫히면서 회전자석(40)과 고정자석(30)이 서로 다른 극성이 근접되면 회전자석(40)과 고정자석(30)의 인력에 의해 도어(1)가 완전히 닫히는 것을 특징으로 하는 도어클로저. It is installed on the upper part of the door (1), there is provided with a flow path, a spring, a piston having a rack on the side and pressurizing the spring, and a pinion engaged with the rack of the piston, the upper surface of the vertical rotation shaft of the pinion A cylinder body 10 protruding upward from 11; A rotating arm 20 having one end coupled to the vertical rotation shaft 11 of the cylinder body 10; And a connection arm 21 having one end rotatably coupled to the other end of the pivot arm 20 and the other end rotatably coupled to the door frame 2.
A fixed magnet 30 formed in a ring shape and fixed to an outer surface of the cylinder body 10 and having a vertical rotation shaft 11 penetrated therein and having an N pole and an S pole alternately disposed along a circumferential direction; And
It is made of a ring shape is integrally rotatably coupled to the vertical axis of rotation 11 of the cylinder body 10 in contact with the upper surface of the stator magnet 30 or wrap around the outer periphery of the stator magnet 30, the circumferential direction Includes; the rotating magnet 40 and the north pole and the south pole are alternately disposed;
When the door 1 is closed by the restoring force of the spring of the cylinder body 10 and the rotating magnet 40 and the stator magnet 30 have the same polarity, the repulsive force of the rotor magnet 40 and the stator magnet 30 is reduced. When the speed of closing the door 1 is lowered, and the door 1 continues to be closed, and the rotating magnet 40 and the stator magnet 30 have different polarities, the rotor magnet 40 and the stator magnet 30 are closed. The door closer, characterized in that the door (1) is completely closed by the attraction.
KR1020180096632A 2018-08-20 2018-08-20 Door closer KR20200021193A (en)

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KR1020180096632A KR20200021193A (en) 2018-08-20 2018-08-20 Door closer

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KR1020180096632A KR20200021193A (en) 2018-08-20 2018-08-20 Door closer

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100265254B1 (en) 1998-03-20 2000-09-15 김정용 Door closer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100265254B1 (en) 1998-03-20 2000-09-15 김정용 Door closer

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