KR950008555Y1 - Ventilator controlled variable wind-hole - Google Patents
Ventilator controlled variable wind-hole Download PDFInfo
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- KR950008555Y1 KR950008555Y1 KR2019930001503U KR930001503U KR950008555Y1 KR 950008555 Y1 KR950008555 Y1 KR 950008555Y1 KR 2019930001503 U KR2019930001503 U KR 2019930001503U KR 930001503 U KR930001503 U KR 930001503U KR 950008555 Y1 KR950008555 Y1 KR 950008555Y1
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- South Korea
- Prior art keywords
- opening
- main body
- closing
- cover
- link
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
- F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1446—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with gearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1473—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with cams or levers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 분해사시도.1 is an exploded perspective view of the present invention.
제2도는 제1도의 A-A'선 단면예시도.2 is a cross-sectional view taken along the line AA ′ of FIG. 1.
제3도는 종래것의 종단면도.3 is a longitudinal sectional view of the conventional one.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 송풍날개 3 : 구동모터1: Blowing wing 3: Drive motor
4 : 본체 5, 5' : 송풍통로개폐장치4: Main body 5, 5 ': Blower passage opening and closing device
6 : 송풍공 7 : 커버6: blower 7: cover
8 : 날개 9 : 개폐판8: wing 9: opening and closing board
10 : 작동부 13 : 종동기어10: operating unit 13: driven gear
14 : 다단식당김스위치 16 : 링크14: multi-stage pull switch 16: link
17 : 수직지지대 18 : 섹턱기어17: vertical support 18: step gear
20 : 연결봉20: connecting rod
본 고안은 송풍공이 가변조절되는 환기장치에 관한 것으로 보다 구체적으로는 구동모터에 의해서 송풍날개의 앞, 뒤쪽에 소풍량을 임의로 가변조절할 수 있는 한쌍의 소풍통로 개폐기구를 장착하여서 된 환기장치에 관한 것이다.The present invention relates to a ventilator in which a blower is variablely controlled, and more particularly, to a ventilator equipped with a pair of picnic passage opening and closing mechanisms capable of arbitrarily varying the amount of excursions at the front and rear of a blower blade by a driving motor. will be.
종래의 환기장치는 제3도에 예시한 바와같이 본체(30)의 내부에 부착된 지지대(31)에 구동모터(32)를 고정하고 이 구동모터(32)의 회전축에는 송풍날개(33)를 축설하며 케이스(30)의 후방개구부쪽에는 한쪽끝 부분이 스윙 가능하게 피붓팅되는 여러개의 단위셔터(34)들과 연동가능하게 핀(35)으로 연결된체 구동모터(32)의 조작용 당김스위치(36)와 연결되는 링크(37)로 이루어진 셔터식 개폐장치(38)를 형성한것이었기 때문에 상기 셔터식 개폐장치(38)는 구동모터(32) 조작용 당김스위치(36)의 조작시 본체(30)의 후방개구부를 완전히 개방시켜주거나 또는 완전시 폐쇄시켜줄수만 있을뿐 송풍날개(33)의 회전에 의해서 발생되는 풍량의 조절기능을 전혀 갖지 못하였고, 또한 상기 셔터식 개폐기구(38)는 여러개의 단위셔터(34)들을 닫은 상태로 만들어 주었을때 단위셔터(34)들 사이에 틈새가 있게 되며, 이 틈새로 원하지 않게 바깥공기가 유입되거나 또는 원하지 않는 실내공기가 외부로 유출되므로 실내외 공기를 정확하게 완전히 차단시켜줄 수 없게 되어 결국에는 실내의 냉난방시 냉난방 효율을 저하시키는 결과를 초래했었다. 뿐만아니라 상기 셔터식 개폐장치(38)는 제3도에서 쇄선으로 도시한 바와같이 여러개의 단위셔터(34)들을 열은 상태로 만들어 주었을때 송풍날개(33)에 의해서 본체(30)의 후방개구부쪽으로 배출되는 공기가 상기 단위셔터(34)들과 부딪히면서 소음을 크게 발생시켰으며 이 소음과 함께 단위셔터(34)들이 진동되고 이 진동에 의해서 환기장치 전체가 진동하게 되어 수시로 벽면과 환기장치의 설치상태를 점검해 주어야만 하는 등의 결점이 있었다.In the conventional ventilation apparatus, as illustrated in FIG. 3, the driving motor 32 is fixed to the support 31 attached to the inside of the main body 30, and the blowing blade 33 is attached to the rotation shaft of the driving motor 32. The pull switch for operation of the body driving motor 32 connected to the pin 35 so as to be interlocked with a plurality of unit shutters 34, one end of which is pivotably pivoted on the rear opening of the case 30. Since the shutter-type opening and closing device 38 formed of the link 37 connected to the 36 is formed, the shutter-type opening and closing device 38 is a main body when the pull switch 36 for operating the driving motor 32 is operated. The rear opening of the 30 can only be completely opened or completely closed, but has no function of controlling the amount of air generated by the rotation of the blower blade 33, and the shutter opening / closing mechanism 38 is When several unit shutters 34 are closed There is a gap between the (34) and the outside air is unwanted or the unwanted indoor air flows out to the outside, so it is impossible to completely block the indoor and outdoor air, so that the heating and cooling efficiency of the indoor heating and cooling Had resulted in deterioration. In addition, the shutter opening and closing device 38 is a rear opening of the main body 30 by the blower blades 33 when the plurality of unit shutters 34 are opened in the state shown by the broken line in FIG. The air discharged to the side hit the unit shutters 34 to generate a large amount of noise. The unit shutters 34 vibrate together with the noise, and the entire ventilation device vibrates by the vibration, and thus the wall and the ventilation device are frequently installed. There was a flaw, such as having to check the condition.
그리고 환기공을 가변 조절할 수 있는 장치는 일본국 공개실용신안공보 소62-83119호로 이미 제안된바 있었으나 이는 본체의 전면부에 슬리트가 방사상으로 형성된 커버를 고정설치하고 그 내면에 다시 방사상의 슬리트를 갖는 디시크를 끼움 설치한후 디스크의 중앙부분에 연결된 조작와이어로 디스크를 회전시켜주어 슬리트를 가변 조절함으로서 환기공을 조절할 수 있도록 한 것이었다.In addition, a device that can variably adjust the ventilation holes has already been proposed in Japanese Laid-Open Utility Model Publication No. 62-83119, but this is fixed to the front surface of the main body by fixing the cover in which the slits are radially installed and radially on the inner surface again. After installing the disk with the disk, the disk was rotated by the control wire connected to the center part of the disk, so that the ventilation hole could be adjusted by varying the slits.
그러나 이는 환풍기의 한쪽면만 조절하는데 불과한 것이어서 조절의 효과를 크게 기대할 수 없었다.However, this was only to adjust one side of the fan, so the effect of the adjustment could not be expected greatly.
또한 디스크 중앙부분에 매듭지어 연결된 조작와이어 구조로만 조절 작용이 되기 때문에 사용자가 조작 와이어에 가해지는 힘의 정도에 따라 디스크의 회전은 크게 변화되는 것이어서 사용자의 의도에 따라 환기공의 정확한 가변조절이 불가능한 문제점을 수반하고 있었다.In addition, since only the control wire structure connected to the center of the disk is controlled, the rotation of the disk is greatly changed according to the degree of force applied to the control wire. It was accompanied by a problem.
본 고안은 이와같은 종래것의 제반 문제점을 해결하기 위하여 안출한 것인바 본 고안의 목적은 송풍날개가 연설된 구동모터가 설치되는 본체의 전후방 개구부 양쪽을 함께 개폐시킬 수 있도록 함으로서 환기장치의 정지상태에서는 실내외측 공기를 완전히 차단시켜 실내를 냉난방할때 냉난방 효율을 극대화 시킬 수 있는 환기장치를 제공하는데 있다.The present invention has been devised to solve all the problems of the prior art bar The purpose of the present invention is to allow both the opening and closing of the front and rear openings of the main body in which the blower driven speech motor is installed, the stationary state of the ventilation device In order to completely block the outside and outside air to provide a ventilation device that can maximize the cooling and heating efficiency when cooling the room.
본 고안의 다른 목적을 본체의 전후방 개구부 양쪽을 개폐하는 송풍통로 개페장치의 송풍공(환기공) 크기를 가변식으로 정확하게 조절 가능하게 함으로서 송풍량을 임의로 조절할 수 있는 환기장치를 제공하는데 있다.Another object of the present invention is to provide a ventilation device capable of arbitrarily adjusting the amount of air flow by allowing the size of the ventilation hole (ventilation hole) of the ventilation passage opening and closing device to open and close both sides of the front and rear openings of the main body.
본 고안의 또다른 목적은 송풍통로 개폐장치를 판상의 회전운동식으로 구성함으로서 환기장치 전체의 두께를 보다 얇게하여 벽의 두께가 얇은 곳에도 설치하기가 매우 용이하고 환기장치 작동시 바람과의 마찰정항이 비교적 작아 소음과 진동이 덜 발생하며 운전상태가 매우 정숙한 환기장치를 제공하는데 있다.Another object of the present invention is to make the ventilation passage opening and closing device into the plate-like rotational movement to make the entire thickness of the ventilation device thinner, so that it is very easy to install even in the wall thickness is very thin and friction with the wind during operation of the ventilation device The relatively small port makes noise and vibration less and provides a very quiet operation.
이하 본 고안의 바람직한 실시예를 첨부도면에 의하여 보다 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 고안은 제1도에 예시된 바와같이 송풍날개(1)가 회전축(2)에 끼워진 구동무터(3)가 설치되는 본체(4)의 전후방 개구부 양쪽에 각각 송풍통로 개폐장치(5) (5')를 부착하여서 된 것이다.The present invention is a blow passage opening and closing device (5) (5), respectively, on both sides of the front and rear openings of the main body (4) in which the blower blade (1) is fitted with the rotary shaft (2), as shown in FIG. ') By attaching.
송풍통로 개폐장치(5) (5')는 본체(4)와 끼워 맞춤되며 부채꼴 모양을 가진 여러개의 송풍공(6)이 형성된 커버(7)와 상기 송풍공(6)을 개폐시켜 줄수 있는 크기를 가진 여러개의 날개(8)로 이루어진 개폐판(9)과 이 개폐판(9)의 작동부(10)로 이루어져 있다.Blow passage opening and closing device (5) (5 ') is fitted with the main body (4) and the size that can open and close the cover 7 and the blow hole (6) formed with a plurality of blow holes (6) having a fan shape Opening and closing plate (9) consisting of a plurality of wings (8) having an operating portion (10) of the opening and closing plate (9).
개폐판(9)의 중앙에는 중심축(11)이 관통되어 있으며 이 중심축(11)의 한쪽끝은 커버(7)의 정중앙에 위치하는 중심공(12)에 회전 가능하게 끼워져 있으며 중심축(11)의 다른 한쪽끝에는 종동기어(13)가 고정되어 있다.The central shaft 11 penetrates through the center of the opening and closing plate 9, and one end of the central shaft 11 is rotatably fitted in the central hole 12 located at the center of the cover 7. The driven gear 13 is fixed to the other end of 11).
작동부(10)는 본체(4)의 한쪽끝 부분에 부착된 통상의 다단식 당김스위치(14)의 작동핑거(15)와 한쪽끝 부분에 연결된체 본체(4)내의 피붓팅된 링크(16)의 다른 한쪽끝과 하단이 연결된 수직지지대(17)와 이 수직지지대(17)의 상단부와 연결된 섹터기어(18)로 이루어져 있다.The actuating portion 10 is a working finger 15 of a conventional multistage pull switch 14 attached to one end of the main body 4 and a poured link 16 in the main body 4 connected to one end. The other end of the vertical support 17 is connected to the lower end and consists of a sector gear 18 connected to the upper end of the vertical support (17).
상기 섹터기어(18)는 상기 커버(7)에 피붓(19)으로 움직일 수 있도록 고정되어 있으며 섹터기어(18)는 상기 개폐판(9)의 중심축(11)에 고정된 종동기어(13)와 맞물려져 있다.The sector gear 18 is fixed to the cover 7 so as to be movable by the brush 19 and the sector gear 18 is driven gear 13 fixed to the central axis 11 of the opening and closing plate 9 Is interlocked with
그리고 송풍통로 개폐장치(5) (5')의 작동부(10)를 구성하는 수직지지대(17)들은 본체(4)의 앞뒤를 가로지르는 방향으로 배치되는 연결봉(20)에 의해서 함께 동작할 수 있도록 연결되어 있다.And the vertical support (17) constituting the operating portion 10 of the air passage opening and closing device (5) (5 ') can be operated together by a connecting rod (20) arranged in a direction crossing the front and back of the main body (4). Are connected.
도면중 미설명 부호 21은 양쪽끝이 각각 커버(7)와 개폐판(9)에 고정되어 개폐판(9)의 원활한 복귀운동을 돕는 인장코일 스프링, 22는 구동무터(3) 조작용 당감스위치, 23은 다단식 당김스위치(14)의 당김줄, 24는 당김스위치(22)의 당김줄이다.In the drawing, reference numeral 21 denotes a tension coil spring which is fixed at both ends of the cover 7 and the opening and closing plate 9 to help the smooth return movement of the opening and closing plate 9, and 22 is a pull switch for operating the driving mute 3 , 23 is a pull line of the multistage pull switch 14, 24 is a pull line of the pull switch 22.
이와같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.
본 고안은 제2도에 예시한 바와 같이 당김줄(24)을 잡아당기면 구동모터(3)가 작동하면서 실내공기를 환기되게 함에 있어서 다단식 당김스위치(14)의 당김줄(23)을 잡아당기는 정도에 따라서 본체(4)의 전후방 개구부 양쪽에 부착된 송풍통로 개폐장치(5) (5')가 전후커버(7)의 송풍구멍(6)을 폐쇄하고 있던 개폐판(9)의 종동기어(13)가 다단식 당김스위치(14)의 작동핑거(15)와 링크(16), 수직지지대(17) 그리고 연결봉(20)으로 연결된 섹터기어(18)가 맞물려진 상태에서 선택적으로 일정한 회전각도를 가지면서 회전하여 송풍구멍(6)을 열어주는 것이기 때문에 실내, 외측 공기간에 환기가 이루어진다.The present invention pulls the pull line 23 of the multi-stage pull switch 14 in pulling the pull line 24 as shown in FIG. 2 to allow the indoor air to be ventilated while the driving motor 3 operates. According to this, the air passage opening / closing devices 5 and 5 'attached to both front and rear openings of the main body 4 are driven gears 13 of the opening and closing plate 9 in which the air blowing holes 6 of the front and rear covers 7 are closed. ) Has an optional constant rotational angle in the state in which the operating finger 15 of the multistage pull switch 14 and the linkage 16, the vertical support 17, and the sector gear 18 connected by the connecting rod 20 are engaged. Since it rotates to open the blowing hole 6, ventilation is performed between indoor and outside air.
다시 말해서 본 고안은 본체(4)의 전후방 개구부 양쪽을 송풍통로 개페장치(5) (5')로 동시에 개폐시킬 수 있는 것이기 때문에 환기장치의 정지중에는 실내, 외측간의 공기흐름을 완전하게 차단시켜 줄 수 있어 실내를 냉, 난방할때 냉난방 효율을 극대화 시킬 수 있고 송풍통로 개폐장치(5) (5')의 커버(7)쪽 송풍구멍(6)이 다단식으로 일정한 회전각도로 회전하는 개폐판(9)의 날개(8)에 의해서 구멍의 크기가 흡사 노즐처럼 임의로 가변되는 것이기 때문에 송풍량을 사용자가 실내외의 환경을 고려하여 임의로 조절하면서 사용할 수 있는 것이다.In other words, the present invention can simultaneously open and close both front and rear openings of the main body 4 by the air passage opening and closing device 5, 5 ', so that the air flow between the inside and the outside is completely blocked while the ventilation device is stopped. It is possible to maximize the cooling and heating efficiency when the room is cooled and heated, and the opening and closing plate in which the ventilation holes 6 of the cover 7 of the air passage opening and closing device 5 and 5 'are rotated at a constant rotational angle in multiple stages. Since the size of the hole is randomly changed like a nozzle by the wing 8 of 9), the user can use the airflow amount while arbitrarily adjusting the indoor and outdoor environments.
여기에서 송풍통로 개폐장치(5) (5')의 조절작용이 기계적인 장치의 구조에 의하여 가변 조절되기 때문에 항시 사용자의 의도에 따라 정확한 조절작용이 이루어진다.Here, since the control action of the air passage opening and closing device (5) (5 ') is variably adjusted by the structure of the mechanical device, the correct control action is always performed according to the intention of the user.
그리고 송풍통로 개폐장치(5) (5')들이 판상의 회전운동식으로 이루어진 것이기 때문에 셔터식 개폐기구를 갖는 종래의 환기장치 보다 환기장치 전체의 두께를 슬림형으로 만들 수 있어 벽의 두께가 두꺼운 건축물의 외벽은 물론 얇은 두께를 갖는 실내벽 또는 유리창으로 둘러 쌓인 사무용 공간을 위한 환기장치용으로 매우 적합할뿐 아니라 특히 소음과 진동이 작아 정숙을 요하는 곳에 설치하기에 매우 적합한 매우 유용한 고안인 것이다.And because the ventilation passage opening and closing device (5) (5 ') is made of a plate-like rotational movement type, the thickness of the entire ventilation device can be made slimmer than the conventional ventilation device having a shutter-type opening and closing mechanism, so that the wall thickness is thick. It is a very useful design that is not only suitable for ventilating devices for office spaces surrounded by thin walls, but also for interior walls or glass windows, and is particularly suitable for installation in places requiring quietness due to low noise and vibration.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930001503U KR950008555Y1 (en) | 1993-02-05 | 1993-02-05 | Ventilator controlled variable wind-hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930001503U KR950008555Y1 (en) | 1993-02-05 | 1993-02-05 | Ventilator controlled variable wind-hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940021029U KR940021029U (en) | 1994-09-24 |
| KR950008555Y1 true KR950008555Y1 (en) | 1995-10-11 |
Family
ID=19350386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019930001503U KR950008555Y1 (en) | 1993-02-05 | 1993-02-05 | Ventilator controlled variable wind-hole |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950008555Y1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200452110Y1 (en) * | 2008-08-27 | 2011-02-08 | 지에스건설 주식회사 | Apparatus for Adjusting Ventilation Ratio |
| KR20190069279A (en) * | 2017-12-11 | 2019-06-19 | 강흥묵 | Ventilation System |
-
1993
- 1993-02-05 KR KR2019930001503U patent/KR950008555Y1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200452110Y1 (en) * | 2008-08-27 | 2011-02-08 | 지에스건설 주식회사 | Apparatus for Adjusting Ventilation Ratio |
| KR20190069279A (en) * | 2017-12-11 | 2019-06-19 | 강흥묵 | Ventilation System |
Also Published As
| Publication number | Publication date |
|---|---|
| KR940021029U (en) | 1994-09-24 |
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