KR20130012268A - Means one trillion people equipped with a rolls-screen double windows - Google Patents

Means one trillion people equipped with a rolls-screen double windows Download PDF

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Publication number
KR20130012268A
KR20130012268A KR1020110073351A KR20110073351A KR20130012268A KR 20130012268 A KR20130012268 A KR 20130012268A KR 1020110073351 A KR1020110073351 A KR 1020110073351A KR 20110073351 A KR20110073351 A KR 20110073351A KR 20130012268 A KR20130012268 A KR 20130012268A
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KR
South Korea
Prior art keywords
roll screen
screen
glass plates
air layer
frame
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KR1020110073351A
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Korean (ko)
Inventor
김민웅
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김민웅
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Priority to KR1020110073351A priority Critical patent/KR20130012268A/en
Publication of KR20130012268A publication Critical patent/KR20130012268A/en

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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/249—Glazing, e.g. vacuum glazing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/22—Glazing, e.g. vaccum glazing

Abstract

PURPOSE: Double windows with a roll screen and a lighting unit are provided to promote energy efficiency by preventing heat conduction and maintaining the air layer between double windows in a vacuum and to prevent the room temperature from rising by blocking the influx of excessive sunlight. CONSTITUTION: Double windows with a roll screen and a lighting unit comprise a frame(10), a plurality of glass plates(12), a roll screen, a magnetic motor, a vacuum retention rotating device, and a LED lighting. The frame includes a mounting part in which a plurality of glass plates is settled. The glass plates are combined to the mounting part of the frame. The roll screen is equipped in the longitudinal direction of the upper frame and blocks the sunlight with a screen member which is winded or unwounded in air layer between the glass plates. The magnetic motor operates a magnetic clutch of the roll screen and is placed in the side of the frame. The vacuum retention rotating device maintains the air layer between the glass plates in a vacuum by expelling all the air. The LED lighting is placed on both sides of a plurality of glass plates and lights up the interior with the reflected light on the roll screen.

Description

조명수단을 갖는 롤스크린을 구비한 이중창호{Means one trillion people equipped with a Rolls-screen double windows}Means one trillion people equipped with a Rolls-screen double windows}

본 발명은 단열 효과를 높이기 위한 이중창호에 관한것으로서, 보다 상세하게는 소정간격을 두고 구비되는 한쌍의 유리판 사이에 형성된 공간부에 롤스크린을 상하 승강시켜 외부의 시선 차단 및 과도한 햇빛 투과를 막고, 승강되는 롤스크린이 안정되게 승하강 할 수 있도록 가이드롤러로 안내되는 롤스크린을 구비한 이중창호에 관한 것이다.The present invention relates to a double glazing for enhancing the thermal insulation effect, more specifically, by raising and lowering the roll screen up and down in the space formed between a pair of glass plates provided at a predetermined interval to prevent external gaze blocking and excessive sunlight transmission, The present invention relates to a double glazing having a roll screen guided by a guide roller so that the roll screen can be stably moved up and down.

일반적으로, 이중창호는 주택의 에너지 효율을 높이기 위해 개발된 것으로, 복수의 유리판을 하나의 프레임에 소정간격을 두고 설치하여 유리판의 사이에 공기층을 형성함으로서 실내외의 상이한 온도가 직접적인 열교환이 이루어지는 것을 차단하여 에너지 효율을 높인것이다.In general, double windows are developed to improve the energy efficiency of houses, and by installing a plurality of glass plates at a predetermined interval on one frame to form an air layer between the glass plates to prevent direct heat exchange between indoor and outdoor different temperatures. To increase energy efficiency.

이러한 이중창호는 설치위치에 따라 채광성을 목적으로 대형 통유리를 사용하기도 하나. 그에 따라 외부 시선을 차단하거나 지나친 채광을 막기 위해 커튼, 블라인드 또는 롤스크린 등을 차단부재로 사용하였다.These double windows may use large glass windows for the purpose of skylighting depending on the installation location. Accordingly, curtains, blinds, or roll screens were used as blocking members to block external eyes or to prevent excessive light.

그러나 상기와 같은 커튼 등을 설치하기 위해서는 천장에 가이드 프레임을 설치해야하며 이때 천장은 손상이 될수밖에 없다.However, in order to install such curtains, the guide frame must be installed on the ceiling, and the ceiling is inevitably damaged.

이에 본 발명은 상기한 종래기술의 문제점을 해소하기 위한것으로, 이중 유리판 사이에 형성된 공기층을 진공상태로 유지함으로 대류현상이 잃어나지 않게되어 실내외의 열교환이 차단되어 에너지 효율을 올리며, 채광을 차단할 수 있는 롤스크린을 구비함으로서 실내에 온도상승을 방지할 수 있는 진공부에 롤스크린을 구비도록 하며, 상기 롤스크린에 실내를 비추는 간접조명기능을 갖도록 하는데 그 목적이 있다.Therefore, the present invention is to solve the above problems of the prior art, by maintaining the air layer formed between the double glass plate in a vacuum state, the convection phenomenon is not lost, heat exchange in the room and the outside is blocked to increase energy efficiency, can block the light The purpose of the present invention is to provide a roll screen with a vacuum unit capable of preventing a temperature rise in the room by providing a roll screen, and to have an indirect lighting function for illuminating the room on the roll screen.

본 발명의 목적을 달성하기 위하여 사각형체의 프레임에 한쌍으로 구비되며 소정간격을 두고 설치되는 유리판과, 상기 프레임 중 상부프레임 내부에 구비되어 유리판의 사이에 형성된 공기층에 승하강 되면 외부 시선 및 햇빛이 투과되는 것을 차단하는 롤스크린을과, 공기층의 공기를 흡입하여 외부로 배출하는 공기층을 진공화 시키는 진공유지회전수단과, 이중창호 사이에서 롤스크린을 향해 빛을 조사하는 엘이디조명을 구비한 조명수단을 갖는 롤스크린을 구비한 이중창호를 제공한다.In order to achieve the object of the present invention, a pair of glass plates provided in a frame of a rectangular body and installed at predetermined intervals, and when the descending to the air layer formed between the upper plate of the frame and formed between the glass plates, the external gaze and sunlight It has a roll screen to block the transmission, the vacuum holding means for vacuuming the air layer to suck the air of the air layer and discharged to the outside, and the lighting means having an LED light for irradiating light toward the roll screen between the double windows Provides double glazing with roll screens.

이상에서 상세히 설명한 바와같이 본 발명은 소정간격을 두고 설치된 유리판 사이 공간부를 진공상태로 유지하므로 대류현상이 활발하지 않아 열전도 현상을 차단하여 에너지 효율이 상승되며, 진공부에 롤스크린을 적용하여 과도한 햇빛의 유입을 차단하므로 실내 온도 상승을 방지함은 물론 진공상태에서 작동하는 롤스크린에는 이물질이 묻지않게 되며, 롤스크린에 조명을 조사하여 롤스크린에 반사되는 조명이 실내를 비추므로 은은한 분위기로 실내환경을 꾸밀 수 있게 된다.As described in detail above, the present invention maintains the space between the glass plates installed at a predetermined interval in a vacuum state, so that convection is not active, thereby blocking heat conduction and increasing energy efficiency. As it prevents the inflow, it prevents the rise of room temperature and also prevents foreign matters from being applied to the roll screen operated in a vacuum state. do.

도 1은 본 발명의 적용한 상태의 사시도
도 2는 본 발명을 적용한 상태의 평단면도
도 3은 본 발명의 부분확대 종단면도
도 4는 본 발명의 부분확대 측단면도
도 5는 본 발명에 다른 실시예를 도시한 단면도
도 6는 본 발명의 또 다른 실시예를 도시한 단면도
도 7은 본 발명의 또 다른 실시예를 도시한 단면도1 is a perspective view of the applied state of the present invention
Figure 2 is a plan sectional view of the state to which the present invention is applied
3 is a partially enlarged longitudinal sectional view of the present invention;
Figure 4 is an enlarged side cross-sectional view of the present invention
Figure 5 is a cross-sectional view showing another embodiment of the present invention
Figure 6 is a cross-sectional view showing another embodiment of the present invention
Figure 7 is a cross-sectional view showing another embodiment of the present invention

이하 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1, 도 2 및 도 3은 본 발명을 적용한 이중창호의 사시도와 단면도를 도시한 것으로, 복수의 유리판(12)이 안착될 수 있는 안착부가 형성된 프레임(10)과, 상기 프레임(10)의 안착부에 결합되는 복수의 유리판(12)과, 상기 프레임(10) 중 상부 프레임(10a)의 내부에 구비되어 유리판(12)의 사이로 승하강 되며 햇빛 투과를 차단하는 롤스크린(30)으로 구성된다.1, 2 and 3 are a perspective view and a cross-sectional view of a double glazing to which the present invention is applied, and a frame 10 having a seating portion on which a plurality of glass plates 12 can be seated, and the frame 10 of FIG. It is composed of a plurality of glass plate 12 coupled to the seating portion, the roll screen 30 is provided in the interior of the upper frame (10a) of the frame 10 is raised and lowered between the glass plate 12 and block sunlight transmission. .

상부 프레임(10a)의 길이 방향으로 구비된 롤스크린(30)은 스크린부재(34)가 권취될 수 있도록 소정길이의 스크린케이스(32)의 회전축(35)에 구비되어 스크린부재(34)가 유리판(12) 사이의 공기층(14)으로 승하강 하며 햇빛을 차단할 수 있도록 된다.Roll screen 30 provided in the longitudinal direction of the upper frame (10a) is provided on the rotating shaft 35 of the screen case 32 of a predetermined length so that the screen member 34 is wound, the screen member 34 is a glass plate ( 12) Ascending and descending to the air layer 14 therebetween to block the sunlight.

상기 스크린부재(34)가 권취된 회전축(34)의 일단은 롤스크린케이스(30) 측면으로 돌출되게 설치되어 마그네틱클러치(C)와 체결되며, 이 마그네틱클러치(C)는 측면 프레임(10)에 구비된 자성모터(M)에 의해 작동되어 롤스크린(30)의 스크린부재(34)가 공기층(14)으로 승하강 작동된다.One end of the rotating shaft 34 on which the screen member 34 is wound is installed to protrude toward the side of the roll screen case 30 and is fastened to the magnetic clutch C, and the magnetic clutch C is provided on the side frame 10. Operated by the magnetic motor (M), the screen member 34 of the roll screen 30 is moved up and down to the air layer (14).

상기 스크린부재(34)의 하부에는 스크린부재(34)가 잘 펼져질 수 있도록 무게 추 역할을 하는 봉(36)이 고정되게 체결되어 구비되며, 상기 봉(36)의 양단부에는 롤스크린(32)이 상하 이송되며 유리판(12)과 부딪치며 발생할 소음과 유리판(12)의 손상을 방지하기 위해 탄성부재(38)가 결합된다.The lower portion of the screen member 34 is provided with a fixed rod 36 is fixedly fastened so that the screen member 34 can be unfolded, the roll screen 32 is provided at both ends of the rod 36 The elastic member 38 is coupled to the upper and lower conveyance and to prevent the noise and damage of the glass plate 12 to occur while hitting the glass plate 12.

상기 상부 프레임(10a)은 도 4에서와 같이 유리판(12)을 지지하고 간격을 유지하며, 내부에 구비된 롤스크린(30)의 스크린부재(34)가 통과되 공기층에서 승하강 될 수 있는 상부프레임(10a)의 길이 방향으로 작동공(11)이 형성되고, 작동공(11)의 하측 방향으로 절곡되어 유리판(12)을 지지하는 지지편(13)이 형성된다.The upper frame 10a supports the glass plate 12 and maintains a gap as shown in FIG. 4, and passes through the screen member 34 of the roll screen 30 provided therein so that the upper frame 10a can be lifted and lowered in the air layer. The operation hole 11 is formed in the longitudinal direction of 10a, and the support piece 13 which bends below the operation hole 11 and supports the glass plate 12 is formed.

상기 프레임(10)의 실내측 일면에는 상기 롤스크린(20)을 제어하는 조작부(22)가 구비된다.An operation unit 22 for controlling the roll screen 20 is provided on one indoor side surface of the frame 10.

도 5는 본 발명의 다른 일 실시예를 도시한 단면도로서, 스크린부재(34)가 공기층(14)으로 보다 안정적으로 승하강 작동될 수 있도록 한 것으로, 이를 위해 스크린부재(34)가 권취된 회전축(35)의 양단에 외주연의 중앙이 요홈진 상부 로울러(39)가 구비되고, 하부 프레임(10c)의 양측에 상부로울러(39)와 대응되는 하부 로울러(39a)가 구비되며, 상,하부 로울러에(39,39a)는 양단이 스크린부재(34)의 봉(36)에 결속된 로프(R)를 걸어 스크린부재(34)가 흔들림 없이 안정적으로 승하강 되도록 한 것이다.5 is a cross-sectional view showing another embodiment of the present invention, which allows the screen member 34 to move up and down more stably to the air layer 14, and for this purpose, a rotating shaft on which the screen member 34 is wound. At both ends of the (35) the center of the outer periphery is provided with a grooved upper roller (39), on both sides of the lower frame (10c) is provided with a lower roller (39a) corresponding to the upper roller (39), upper, lower The rollers 39 and 39a have a rope R which is coupled to the rod 36 of the screen member 34 so that the screen member 34 can be stably lifted up and down without shaking.

도 6은 본 발명의 또 다른 실시예를 도시한 것으로, 한 쌍으로 구비되는 유리판(12) 사이에 형성된 공기층(14)을 진공으로 유지할 수 있도록 진공유지회전수단(20)을 구비한 것이다.Figure 6 shows another embodiment of the present invention, it is provided with a vacuum holding rotation means 20 to maintain the vacuum of the air layer 14 formed between the glass plate 12 provided in pairs.

상기 진공유지회전수단(20)은 측면 프레임(10b)의 내부에 구비되어 한쌍으로 구비되는 복수의 유리창(12) 사이의 공기층(14)에서 공기를 빼내어 공기층(14)을 진공상태로 만들며 진공상태가 계속 유지될 수 있도록 하는 것으로, 프레임(10) 상에 공기층(12)과 통하도록 흡입구(16)를 형성하여 진공유지회전수단(20)과 흡입관(18)으로 연결되며, 진공유지회전수단으로 흡입된 공기는 측면 프레임(10b)의 외측면에 형성된 배출공(19)으로 배출된다.The vacuum holding rotating means 20 is provided inside the side frame 10b to extract air from the air layer 14 between the plurality of glass windows 12 provided in pairs to make the air layer 14 in a vacuum state and in a vacuum state. Is maintained so that the suction port 16 is formed on the frame 10 so as to communicate with the air layer 12, and is connected to the vacuum holding means 20 and the suction pipe 18, the vacuum holding means means The sucked air is discharged to the discharge hole 19 formed in the outer surface of the side frame 10b.

상기 진공유지회전수단(20)은 회전동력을 발생하는 모터(M)와, 이 모터(M)에 의해 구동되는 진공펌프(P)로 구성된다.The vacuum holding and rotating means 20 is composed of a motor (M) for generating rotational power, and a vacuum pump (P) driven by the motor (M).

도면상 미도시 하였으나 상기 진공유지회전수단(20)에는 진공형성된 공기층에 공기가 역류해 들어가지 않도록 역류방지 밸브가 설치됨이 바람직하다.Although not shown in the drawing, the vacuum maintenance rotating means 20 is preferably provided with a non-return valve so that air does not flow back into the vacuum-formed air layer.

도 7은 본 발명의 또 다른 실시예를 도시한 것으로, 롤스크린에 조명을 조사하여 방안의 분위기를 은은하게 할 수 있도록 한 것이다.FIG. 7 illustrates another embodiment of the present invention, in which a roll screen is illuminated to illuminate a room.

이는 복수의 유리판(12) 사이 양측으로 엘이디조명(40)을 구비하여 롤스크린(30)을 향해 조사 되도록 함으로서 롤스크린(30)에 반사되는 간접조명에 의해 실내를 은은한 분위기를 낼 수 있도록 형성한 것이다.This is provided to the LED screen 40 on both sides between the plurality of glass plates 12 to be irradiated toward the roll screen 30 to form a soft atmosphere in the room by the indirect light reflected by the roll screen 30.

상기 엘이디조명(40)은 다양한 색상을 구비하여 상황에 따라 다양한 빛깔로 실내분위기를 바꿀 수 있게 된다.The LED lighting 40 has a variety of colors to change the room atmosphere to a variety of colors according to the situation.

이상과 같이 구성된 본 발명은 유리판(12) 사이에 공기층(14)을 진공으로 만들어 유지하는 진공유지수단(20)과, 진공화된 공기층으로 롤스크린(30)의 작동을 동시 또는 각기 동작할 수 있도록 한 것으로, 측면 프레임(10)의 실내에 위치되는 면에 구비된 조작부(22)에 연결되어 사용자 임의로 둘 중 어느 하나만 작동하거나 롤스크린(32)과 진공유지회전수단(20)의 동작을 동시에 할 수 있도록 되며, 프레임(10)의 미세한 틈새로 유입되는 공기를 프레임(10) 내부에 구비된 진공유지회전수단(20)을 가동하여 유리판(12) 사이의 공기층(14)에 유입된 공기를 주기적으로 제거하여 진공상태를 유지함으로 실내외의 온도차에 의한 열전도를 효율적으로 차단함은 물론 여름철 과도한 햇빛의 유입을 차단하고 외부의 시선을 차단할 수 있게 된다.The present invention configured as described above is a vacuum holding means 20 for making and maintaining the air layer 14 in a vacuum between the glass plate 12, and the operation of the roll screen 30 with the vacuumed air layer to be operated simultaneously or separately. In one embodiment, it is connected to the operation unit 22 provided on the surface located in the interior of the side frame 10, the user can operate any one of the two or at the same time the operation of the roll screen 32 and the vacuum holding rotation means 20 at the same time. By operating the vacuum holding rotating means 20 provided in the frame 10 inside the air flowing into the fine gap of the frame 10 to periodically receive the air introduced into the air layer 14 between the glass plate 12 By removing and maintaining the vacuum state, it effectively blocks heat conduction due to temperature difference between indoor and outdoor, as well as blocking the inflow of excessive sunlight in summer and blocking the external gaze.

10 : 프레임 12 : 유리판
14 : 공기층 20 : 진공유지회전수단
22 : 조작부 30 : 롤스크린
32 : 롤스크린케이스 34 : 스크린부재
35 : 회전축 36 : 봉
38 : 탄성부재 39,39a : 상하부 로울러10 frame 12 glass plate
14: air layer 20: vacuum holding rotating means
22: operation unit 30: roll screen
32: roll screen case 34: screen member
35: axis of rotation 36: rod
38: elastic member 39, 39a: upper and lower roller

Claims (1)

열전도를 차단하기 위해 프레임 상에 한 쌍의 유리판을 소정간격을 두고 공기층을 갖도록 한 2중창호에 있어서,
내부에 구비된 롤스크린의 스크린부재가 공기층으로 승하강 될 수 있도록 상부 프레임의 길이 방향으로 관통 형성된 작동공과, 이 작동공의 하측면으로 유리판을 간격을 지지하도록 돌출 형성된 지지편이 형성된 상부프레임과,
상부프레임의 내부에 구비되며, 롤스크린케이스의 회전축에 권취되어 상부프레임의 작동공을 통해 공기층으로 승하강 되는 스크린부재와, 스크린부재의 하부에 무게 추 역할을 하는 양단에 유리의 파손과 타공음을 방지하는 탄성부재가 구비된 봉과, 회전축의 일단에 공기층의 진공을 유지하기 위해 마그네틱클러치가 구비되는 롤스크린과,
상기 마그네틱클러치를 작동하는 자성모터와,
상기 복수의 유리판 사이에 형성된 공간부 양측에서 롤스크린을 향해 빛을 조사하여 반사되는 조명이 실내를 비추도록 엘이디조명이 구비됨을 특징으로 하는 조명수단을 갖는 롤스크린을 구비한 이중창호.In the double glazing that has a pair of glass plates on the frame with a predetermined distance to block heat conduction,
An upper frame formed with a working hole penetrating in the longitudinal direction of the upper frame so that the screen member of the roll screen provided therein can be lifted and lowered into the air layer, and a supporting piece protruding to support the glass plate on the lower side of the operating hole;
It is provided inside the upper frame, and is wound around the rotating shaft of the roll screen case and the screen member is raised and lowered to the air layer through the operation hole of the upper frame, and the breakage and perforation sound of the glass at both ends acting as a weight weight on the lower part of the screen member. A rod provided with an elastic member to prevent and a roll screen provided with a magnetic clutch to maintain a vacuum of the air layer at one end of the rotating shaft;
Magnetic motor to operate the magnetic clutch,
Double door having a roll screen having a lighting means characterized in that the LED lighting is provided so that the light reflected from the both sides of the space portion formed between the plurality of glass plates to the roll screen to reflect the interior.
KR1020110073351A 2011-07-25 2011-07-25 Means one trillion people equipped with a rolls-screen double windows KR20130012268A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200031910A (en) 2018-09-17 2020-03-25 서명준 Double Pane Window having Picture Screen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200031910A (en) 2018-09-17 2020-03-25 서명준 Double Pane Window having Picture Screen

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