KR0132172B1 - Air direction converting device of motor fan - Google Patents

Air direction converting device of motor fan

Info

Publication number
KR0132172B1
KR0132172B1 KR1019950036620A KR19950036620A KR0132172B1 KR 0132172 B1 KR0132172 B1 KR 0132172B1 KR 1019950036620 A KR1019950036620 A KR 1019950036620A KR 19950036620 A KR19950036620 A KR 19950036620A KR 0132172 B1 KR0132172 B1 KR 0132172B1
Authority
KR
South Korea
Prior art keywords
wind direction
motor
lifting shaft
gear
switched
Prior art date
Application number
KR1019950036620A
Other languages
Korean (ko)
Other versions
KR970021771A (en
Inventor
전대지
Original Assignee
배순훈
대우전자주식회사
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Publication date
Application filed by 배순훈, 대우전자주식회사 filed Critical 배순훈
Priority to KR1019950036620A priority Critical patent/KR0132172B1/en
Publication of KR970021771A publication Critical patent/KR970021771A/en
Application granted granted Critical
Publication of KR0132172B1 publication Critical patent/KR0132172B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
    • F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

본 발명은 풍향이 여려 각도로 절환되도록 하여 인원이 적을 때 작은 각도로 절환되고 또한 인원이 상대적으로 많을 때 넓은 범위로 절환되도록 함으로서, 불필요한 부분으로 바람이 토출되지 않도록 한 선풍기의 풍향 절환장치에 관한 것으로서, 특히 모터 하부의 중심축에 중공상의 슬리브가 끼워져 죄대 상단의 네크부에 결합되고 또한 모터 후방으로 형성된 회전축의 워엄기어와 치합되는 중공상의 워엄휠에 끼워져 하강될 때 일체로 회전되는 승강축을 갖는 풍향절환장치에 있어서, 상기 승강축 하단의 형성된 구동기어가 단계적으로 하강 될 때 이와 단계적으로 치합되는 제1,제2종동기어, 그리고 상기 슬리브의 양측으로 형성된 레버와 상기 제1,제2조동기어를 각각 연결하는 링크가 구비된 특징이 있다.The present invention relates to a wind direction switching device of the fan to be switched to a small angle when the number of people is small so that the wind direction is switched at various angles, and to switch to a wide range when the number of people is relatively large, so that the wind is not discharged to unnecessary parts In particular, it has a lifting shaft that is integrally rotated when the hollow sleeve is fitted to the central shaft of the lower part of the motor is coupled to the neck portion of the upper end of the band and fitted to the hollow worm wheel engaged with the worm gear of the rotating shaft formed to the rear of the motor. In the wind direction switching device, the first and second driven gears to be engaged step by step when the driving gear formed at the bottom of the lifting shaft is lowered step by step, the lever formed on both sides of the sleeve and the first, second coarse gear There is a feature provided with a link connecting each.

Description

선풍기의 풍향절환장치Fan direction change device

제1도는 일반적인 선풍기의 측단면도.1 is a side cross-sectional view of a general electric fan.

제2도는 종래 풍향절환장치를 나타낸 단면도.2 is a cross-sectional view showing a conventional wind direction switching device.

제3도는 본 발명 풍향절환 장치를 나타낸 단면도.3 is a cross-sectional view showing the present invention wind direction switching device.

제4도 (a)는 본 발명 풍향 절환장치의 저면도.Figure 4 (a) is a bottom view of the wind direction switching device of the present invention.

제4도(b)(c)는 본 발명 풍향절환 장치의 동작상태를 나타낸 저면도.Figure 4 (b) (c) is a bottom view showing the operating state of the wind direction switching device of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 좌대 11 : 모터10: base 11: motor

11a : 중심축 11b : 슬리브11a: central axis 11b: sleeve

11c : 회전축 11d : 워엄기어11c: rotating shaft 11d: worm gear

20 : 워엄휠 22 : 승강축20: worm wheel 22: lifting shaft

24 : 구동기어 30,31 : 제1,제2종동기어24: drive gear 30,31: first and second driven gear

32,33 : 링크 34,35 : 레버32,33 Link 34,35 Lever

본 발명은 선풍기의 풍향절환장치에 관한 것으로서, 더욱 상세하게는 풍향이 여러각도로 절환되도록 함으로서,많은 인원일때 넓은 범위로 바람이 퍼지도록 하고 또한 적은 인원일때 좁은 범위로 바람이 퍼지도록한 선풍기의 풍향절환장치에 관한 것이다The present invention relates to a wind direction switching apparatus of the fan, and more particularly, by changing the wind direction at various angles, so that the wind spreads in a wide range when a large number of people and also a wind spread in a narrow range when a small number of people It is about wind direction changer

일반적으로 선풍기는 제1도에 도시된 바와 같이, 풍속과 풍향 및 타이머 등을 콘트롤하는 제어부가 구비된 좌대(10)의 상단에 네크부(17)가 형성되고 또한 (17)에는 모터(11)가 설치된다. 또한 모터(11)의 회전축(12a)에 날개(12)가 형성되고 날개(12)는 안전망(13)으로 감싸진 상태로 보호된다.In general, as illustrated in FIG. 1, a neck 17 is formed at an upper end of a pedestal 10 having a controller for controlling wind speed, wind direction, timer, and the like, and a motor 11 is provided at 17. Is installed. In addition, the blade 12 is formed on the rotating shaft 12a of the motor 11 and the blade 12 is protected in a state wrapped in the safety net (13).

이처럼 구성된 선풍기는 모터(11)의 구동으로 날개(12)가 회전되면 실내공기가 날개(12)의 후방으로부터 흡입되어 전방으로 토출되면서 바람이 발생된다. 한편 여러사람이 선풍기를 사용할때 풍향을 절환시켜 바람이 골고루 펴지도록 해야된다.종래에는 풍향을 절환하기 위해 제2도에 도시된바와 같이 모터(11)의 후방으로 형성된 회전축(11c)에 워엄기어(11d)가 형성되고 또한 워엄기어(11d)는 중공상의 워엄휠(1)과 치합된다.The fan configured as described above, when the wing 12 is rotated by the driving of the motor 11, the air is sucked from the rear of the wing 12 and discharged to the front to generate wind. On the other hand, when several people use a fan, the wind direction should be switched to evenly spread the wind. In the past, as shown in FIG. 2 to change the wind direction worm gear on the rotating shaft (11c) formed in the rear of the motor 11 11d is formed and the worm gear 11d is meshed with the hollow worm wheel 1.

한편 워엄휠(1)의 내주연으로 승강축(3)이 끼워지고 워엄휠(1)의 내주연과 승강축(3)의 외주연에 돌기(2)와 볼(4)이 형성된다. 즉 볼(4)이 돌기(2)에서 이탈되면 승강축 (3)과 워엄휠(1)이 분리되고 또한 볼(4)이 돌기(2)사이에 끼워지면 서로 결합되어 일체로 회전된다. 한편 승강축(3)의 하단에 구동기어(5)가 형성되고 이와 치합되는 종동기(6)가 모터(11)와 결합된 브래킷(5a)에 설치된다.또한 모터(11)는 하부의 중심축(11a)에 중공상의 슬리브(11b)가 끼워져 네크부(17)에 결합되고 슬리브(11b)의 상부에 형성된 레버(7)와 종동기어 (6)가 링크(8)를 통하여 서로 연결된다.Meanwhile, the lifting shaft 3 is fitted into the inner circumference of the worm wheel 1, and the protrusions 2 and the ball 4 are formed on the inner circumference of the worm wheel 1 and the outer circumference of the lifting shaft 3. That is, when the ball 4 is separated from the protrusion 2, the lifting shaft 3 and the worm wheel 1 are separated, and when the ball 4 is sandwiched between the protrusions 2, the balls 4 are rotated integrally with each other. On the other hand, a drive gear 5 is formed at the lower end of the lifting shaft 3, and a follower 6, which is engaged with it, is installed in the bracket 5a coupled with the motor 11. The motor 11 is the center of the lower part. The hollow sleeve 11b is fitted to the shaft 11a to be coupled to the neck portion 17, and the lever 7 and the driven gear 6 formed on the upper portion of the sleeve 11b are connected to each other through the link 8.

이처럼 구성된 종래의 풍향절환장치는 제1도에 도시된 조절손잡이 (14)를 회전시키지 않으면 스프링 (16a)에 의해 승강축(3)이 상승된 상태이므로 구동기어 (5)와 종동기어(6)가 서로 떨어진다. 따라서 모터(11)의 회전으로 워엄기어(11c)와 워엄휠(1)이 회전되더라도 승강축(3)이 정지된 상태이므로 모터(11)의 방향이 절환되지 않는다, 한편 조절손잡이 (14)를 회전시키면 와이어(15)가 당겨지면서 레버(16)가 승강축(3)을 하강시킨다. 이때 볼(4)이 돌기(2)에 사이에 끼워지면서 워엄휠(1)과 승강축(3)이 일체로 회전된다. 따라서 모터(11)의 회전시 워엄기어(11d)와 워엄휠(1)이 회전되면서 승강축(3)이 회전되면 구동기어(5)와 치합된 중동기어(6)가 회전된다. 이때 슬리브(11b)는 네크부(17)에 볼(18)을 통하여 고정된 상태이므로 링크(8)가 레버(7)를 중심으로 각운동되면서 풍향이 절환된다.The conventional wind direction switching device configured as described above has the driving shaft 5 and the driven gear 6 because the lifting shaft 3 is raised by the spring 16a unless the adjusting knob 14 shown in FIG. 1 is rotated. Falls off each other. Therefore, even if the worm gear 11c and the worm wheel 1 are rotated by the rotation of the motor 11, the direction of the motor 11 is not switched because the lifting shaft 3 is stopped. Rotating pulls the wire 15 while the lever 16 lowers the lifting shaft 3. At this time, the worm wheel 1 and the lifting shaft 3 are integrally rotated while the ball 4 is sandwiched between the protrusions 2. Therefore, when the worm gear 11d and the worm wheel 1 are rotated while the motor 11 is rotated and the lifting shaft 3 is rotated, the middle gear 6 engaged with the drive gear 5 is rotated. At this time, since the sleeve 11b is fixed to the neck portion 17 through the ball 18, the wind direction is switched while the link 8 is angularly moved around the lever 7.

그러나 링크(8)가 일정한 각도로 각운동되므로 풍향의 범위가 고정된다.예컨데 120°범위 내에서 절환될 경우 인원이 적으면 불필요한 부분으로 바람이 송풍되는 단점이 있다, 즉 인원이 적으면 선풍기의 날개(12)를 둘러싸는 폭이 작기 때문에 모터(11)가 방향절환될 경우 사람이 없는 쪽으로 향하게 되고 또한 절환범위가 넓어 실제 사용자 쪽으로 향하는 시간이 작기 때문에 덜 시원하게 되는 단점이 있다.However, since the link 8 is angularly moved at a constant angle, the range of the wind direction is fixed. For example, when the switch is switched within the range of 120 °, there is a disadvantage in that the wind blows to the unnecessary part when the number of people is small. Since the width surrounding the wing 12 is small, when the motor 11 is turned, the motor 11 is turned toward the non-personal side, and the switching range is wide, so that the time toward the actual user is less, which is less cool.

본 발명은 종래의 문제점을 감안하여 개발된 것으로서, 그목적은 풍향이 여러각도로 절환되도록 하여 인원이 적을 때 작은 각도로 절환되고 또한 인원이 상대적으로 많을 때 넓은 범위로 절환되도록 함으로서, 불필요한 부분으로 바람이 토출되지 않도록 한 선풍기의 풍향절환장치를 제공함에 있다.The present invention was developed in view of the conventional problems, the purpose of which is to switch to a small angle when the number of people is small so that the wind direction is switched at various angles, and also to be switched to a wide range when the number of people is relatively large, An object of the present invention is to provide a wind direction switching device for a fan to prevent wind from being discharged.

상기 목적을 달성하기 위하여 본 발명은 모터 하부에 중심축에 중공상의 슬리브가 끼워져 좌대 상단의 네크부에 결합되고 또한 모터후방으로 형성된 회전축의 워엄기어와 치합되는 중공상의 워엄휠에 끼워져 하강될 때 일체로 회전되는 승강축을 갖는 풍향절환장치에 있어서, 상기 승강축 하단에 형성된 구동기어가 단계적으로 하강될 때 이와 단계적으로치합되는 제1,제2종동기어, 그리고 상기 슬리브의 양측으로 형성된 레버와 상기 제1,제2종동기어를 각각 연결하는 링크가 구비된 특징이 있다,In order to achieve the above object, the present invention is integrated when the hollow sleeve is fitted in the center shaft at the lower part of the motor, coupled to the neck portion of the upper seat, and fitted into the hollow worm wheel engaged with the worm gear of the rotating shaft formed at the rear of the motor. In the wind direction switching device having a lifting shaft rotated to the first, the first and second driven gears that are engaged in stages when the drive gear formed on the lower end of the lifting shaft is lowered step by step, and the lever and the second formed on both sides of the sleeve The first and second driven gears are characterized in that the link is provided, respectively.

이하에서는 본 발명의 바람직한 실시예를 첨부 도면에 따라 상세히 설명하면 다음과 같다,Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention,

제3도는 본 발명 풍향절환장치를 나타낸 단면도로서 제1도와 동일구성요소는 동일부호를 사용하여 본 고안을 설명한다, 즉 모터(11)하부에 형성된 중심축(11a)에 중공상의 슬리브(11b )가 끼워진 상태에서 네크부(17)에 결합된다, 이때 네크부(17)에 형성된 볼(18)에 슬리브(11b )이 상단에 원호상으로 다수개 형성된 홈(18a)이 끼워져 슬리브(11b)가 임의로 회전되지 않는다, 한편 모터(11)의 후방으로 형성된 회전축(11c)에 워엄기어(11d)가 형성되고 또한 승강축(22)이 끼워진 중공상의 워엄휠(20)이 치합되어 날개(12)가 회전될 때 함께 회전된다.3 is a cross-sectional view showing the present invention the wind direction switching device 1 and the same components to explain the present invention using the same reference numerals, that is, the hollow sleeve (11b) in the central shaft (11a) formed under the motor (11) Is coupled to the neck portion 17 in a state where the sleeve 11b is inserted into the ball 18 formed in the neck portion 17 by a plurality of grooves 18a formed in the shape of an arc at the top. On the other hand, the worm gear 11d is formed on the rotating shaft 11c formed to the rear of the motor 11 and the hollow worm wheel 20 in which the lifting shaft 22 is fitted is engaged so that the blade 12 is engaged. When they are rotated together.

한편 승강축(22)의 하단과 상단은 모터(11)의 후방으로 형성된 브리킷(20a)과 커버(20b)에 의해 승강안내 된다. 또한 워엄휠(20)의 내주연에 방사상으로 다수개의 돌기(21)가 형성되고 승강축(22)의 상부에는 스프링(23a)으로 탄압되는 볼(23)이 형성되어 승강축(22)이 하강될 때 볼(23)이 돌기(21) 사이에 놓으면 승강축(22)과 워엄휠(20)이 일체로 회전된다. 한편 승강축(22)의 하단에 구동기어(24)가 형성되고 또한 브리킷(20a)저면의 구동기어(24) 양측으로 제1,2종동기어(30)(31)가 단계적으로 형성된다. 즉 승강축(22)이 상승된 상태에서 제1,2종동기어(30)(31)에서 분리되고 또한 1차적으로 하강되면 제1종동기어(30)와 치합되고 또한 2차적으로 하강되면 제1종동기어(30)에서 분리됨과 동시에 제2종동기어(30)와 치합된다.On the other hand, the lower end and the upper end of the lifting shaft 22 are guided up and down by the briquette 20a and the cover 20b formed to the rear of the motor 11. In addition, a plurality of protrusions 21 are formed radially on the inner circumference of the worm wheel 20, and a ball 23 that is pressed by a spring 23a is formed on an upper portion of the lifting shaft 22, and the lifting shaft 22 is lowered. When the ball 23 is placed between the projection 21 when the lifting shaft 22 and the worm wheel 20 is integrally rotated. On the other hand, the drive gear 24 is formed at the lower end of the lifting shaft 22, and the first and second driven gears 30 and 31 are formed stepwise on both sides of the drive gear 24 at the bottom of the briquette 20a. That is, the first and second driven gears 30 and 31 are separated from the first and second driven gears 30 and 31 in the state in which the lifting shaft 22 is raised, and are engaged with the first driven gear 30 when the first and second descending gears are lowered. Separated from the driven gear 30 and meshed with the second driven gear 30 at the same time.

한편 제1,2종동기어(30)(31)는 슬리브(11b)의 상단 양측으로 형성된 제1,2레버(34)(35)에 제1,2링크(32)(33)를 통하여 각각 연결되고 또한 승강축(22)은 상단이 레버(16)와 연결된 상태에서 레버(16)가 조절 손잡이(14)와 연결된 와이어(15)와 결합된다. 또한 제1,2종동기어(30)(31)는 각 회전중심으로부터 링크(32)(33)와 떨어진 거리 α,β가 서로 다르다 즉 제2종동기어(30)가 제1종동기어(30)보다 더 많이 떨어지도록 (αβ)함으로서 제1종동기어(30)가 구동되면 예컨데 풍향이 60°절환되고 또한 제2종동기어(30)가 구동되면 풍향이 날개(12)0°절환되도록 모터(11)가 회전된다.Meanwhile, the first and second driven gears 30 and 31 are connected to the first and second levers 34 and 35 formed on both sides of the upper end of the sleeve 11b through the first and second links 32 and 33, respectively. In addition, the lifting shaft 22 is coupled to the wire 15, the lever 16 is connected to the adjustment knob 14 in the state that the upper end is connected to the lever 16. In addition, the first and second driven gears 30 and 31 are different from each other by the distances α and β separated from the links 32 and 33 from the center of rotation, that is, the second driven gear 30 is the first driven gear 30. When the first driven gear 30 is driven to fall further (αβ), for example, the wind direction is switched by 60 °, and when the second driven gear 30 is driven, the wind direction is switched by 0 ° to the wings 12. ) Is rotated.

이처럼 구성된 본 발명은 조절 손잡이(14)가 회전되지 않은 상태에서 스프링(16a)에 의해 레버(16)가 상승된다. 이때 승강축(22)이 상승되어 구동기어(24)가 제1,2종동기어(30)(31)와 떨어지고 또한 볼(23)이 돌기(21)에서 이탈된다. 이러한 상태에서 모터(11)가 구동되면 전방의 회전축(12a)에 의해 날개(12)가 회전되면서 바람이 토출되고 또한 후방의 회전축(11c)에 의해 워엄기어(11d)와 워엄휠(20)이 회전된다 한편 워엄휠(20)이 회전될 때 승강축(22)은 정지되므로 모터(11)의 방향이 절환되지 않는다.In the present invention configured as described above, the lever 16 is lifted by the spring 16a in a state in which the adjustment knob 14 is not rotated. At this time, the lifting shaft 22 is raised so that the drive gear 24 is separated from the first and second driven gears 30 and 31, and the ball 23 is separated from the protrusion 21. In this state, when the motor 11 is driven, the wind is discharged while the blade 12 is rotated by the front rotating shaft 12a, and the worm gear 11d and the worm wheel 20 are driven by the rear rotating shaft 11c. On the other hand, when the worm wheel 20 is rotated, the lifting shaft 22 is stopped so that the direction of the motor 11 is not switched.

한편 조절 손잡이(14)를 1단계 회전시키면 레버(16)가 각은동되면 승강축(22)이 하강된다. 이때 볼(23)이 돌기(21)에 걸리면서 승강축(22)과 워엄휠(20)이 일체로 회전되고 이와 동시에 구동기어(24)가 제1종동기어(30)와 치합된다. 즉 워엄기어(11d)와 워엄휠(20)이 회전되면 승강축(22)이 함께 회전되면서 구동기어(24)와 제1종동기어(30)가 회전되고 이때링크(32)가 레버(34)를 중심으로 각운동되면서 제4도(b)에 도시된 바와 같이 풍향이 절환된다.Meanwhile, when the adjustment knob 14 is rotated one step, the lifting shaft 22 is lowered when the lever 16 is angularly moved. At this time, the lifting shaft 22 and the worm wheel 20 are integrally rotated while the ball 23 is caught by the protrusion 21, and at the same time, the driving gear 24 is engaged with the first driven gear 30. That is, when the worm gear 11d and the worm wheel 20 are rotated, the lifting shaft 22 is rotated together so that the drive gear 24 and the first driven gear 30 are rotated, and the link 32 is the lever 34. Wind direction is switched as shown in Figure 4 (b) while angular movement around.

한편 조절손잡이(14)를 2단계 회전시켜 승강축(22)을 완전히 하강시키면 돌기(21)와 볼(23)이 결합된 상태로 구동기어(24)가 제2종동기어(30)와 치합됨과 동시에 제1종동기어(30)에서 이탈된다. 따라서 워엄휠(20)이 회전될 때 승강축(22)이 회전됨과 동시에 구동기어(24)와 제2종동기어(30)가 회전되고 이때 링크(33)가 레버(35)를 중심으로 각운동되면서 제4도(c)에 도시된 것처럼 풍향이 절환된다.On the other hand, when the control knob 14 is rotated two steps to fully lower the lifting shaft 22, the driving gear 24 is engaged with the second driven gear 30 in a state in which the protrusion 21 and the ball 23 are coupled. At the same time, the first driven gear 30 is separated. Therefore, when the worm wheel 20 is rotated, the elevating shaft 22 is rotated and at the same time the drive gear 24 and the second driven gear 30 are rotated, and the link 33 is angularly moved around the lever 35. The wind direction is switched as shown in FIG.

이상에서와 같이 본 발명에 따르면 제1,제2종동기어가 구동기어와 단계적으로 치합되면서 풍향이 다각도로 절환됨으로 인원이 적을 때 좁은 범위로 풍향을 절환시키고 또한 많을 때 넓은 범위로 절환시킴으로서, 사람이 없는 쪽으로 바람이 토출되지 않으므로 선풍기의 효율이 향상되는 효과가 있다.As described above, according to the present invention, as the first and second driven gears are engaged with the driving gear in stages, the wind direction is switched at various angles, so when the number of people is small, the wind direction is switched to a narrow range and when the number is large, the person is switched to a wide range. Since the wind is not discharged to this side there is an effect that the efficiency of the fan is improved.

Claims (2)

모터 하부의 중심축에 중공상의 슬리브가 끼워져 좌대 상단에 네크부에 결합되고 또한 모터 후방으로 형성된 회전축에 워엄기어와 치합되는 중공상의 워엄휠에 끼워져 하강될때 일체로 회전되는 승강축을 갖는 풍향절환장치에 있어서, 상기 승강축(22)하단에 형성된 구동기어(24)가 단계적으로 하강될때 이와 단계적으로 치합되는 제1,2종동기어(30)(31), 그리고 상기 슬리브(11b)의 양측으로 형성된 레버(34)(35)와 상기 제1,2종동기어(30)(31)를 각각 연결하는 링크(32)(33)를 구비함을 특징으로 하는 선풍기의 풍향절환장치.In the wind direction switching device having a lifting shaft which is integrally rotated when the hollow sleeve is fitted to the neck portion of the upper base of the motor and coupled to the neck portion at the top of the seat and fitted to the hollow worm wheel engaged with the worm gear on the rotating shaft formed at the rear of the motor. The first and second driven gears 30 and 31 engaged with each other when the driving gear 24 formed at the lower end of the lifting shaft 22 are stepped down, and levers formed at both sides of the sleeve 11b, respectively. (34) (35) and the wind direction switching device of the fan, characterized in that it comprises a link (32, 33) for connecting the first and second driven gear (30, 31), respectively. 제1항에 있어서, 상기 제1,2종동기어(30)(31)의 회전중심이 서로 다른 반경을 이루며 상기 각 링크(32)(33)와 결합됨을 특징으로 하는 선풍기의 풍향절환장치.The apparatus of claim 1, wherein the centers of rotation of the first and second driven gears (30) and (31) are combined with the links (32) and (33) to form different radii.
KR1019950036620A 1995-10-23 1995-10-23 Air direction converting device of motor fan KR0132172B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101223619B1 (en) * 2012-06-25 2013-01-17 유현주 A safty turning apparatus for a motor fan
CN103939372A (en) * 2014-05-12 2014-07-23 慈溪市耶尼西环保科技有限公司 Fan oscillation mechanism and fan with fan oscillation mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101223619B1 (en) * 2012-06-25 2013-01-17 유현주 A safty turning apparatus for a motor fan
CN103939372A (en) * 2014-05-12 2014-07-23 慈溪市耶尼西环保科技有限公司 Fan oscillation mechanism and fan with fan oscillation mechanism

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