KR0129177Y1 - Eccentricity preventing knob structure - Google Patents

Eccentricity preventing knob structure Download PDF

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Publication number
KR0129177Y1
KR0129177Y1 KR2019950028029U KR19950028029U KR0129177Y1 KR 0129177 Y1 KR0129177 Y1 KR 0129177Y1 KR 2019950028029 U KR2019950028029 U KR 2019950028029U KR 19950028029 U KR19950028029 U KR 19950028029U KR 0129177 Y1 KR0129177 Y1 KR 0129177Y1
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KR
South Korea
Prior art keywords
knob
power
power knob
storage space
hole
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KR2019950028029U
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Korean (ko)
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KR970019189U (en
Inventor
성기협
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김광호
삼성전자주식회사
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Priority to KR2019950028029U priority Critical patent/KR0129177Y1/en
Publication of KR970019189U publication Critical patent/KR970019189U/en
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Publication of KR0129177Y1 publication Critical patent/KR0129177Y1/en

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/02—Controlling members for hand actuation by linear movement, e.g. push buttons
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/04—Stops for limiting movement of members, e.g. adjustable stop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/012—Household appliance

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

본 고안은 전원노브의 출몰작동시 편심되지 않고 정확하게 출몰되어 전원스위치를 정확하게 동작시키도록 안출한 전자제품의 전원노브 평심방지구조에 관한 것으로, 프론트커버(10)의 전면 일측 하부에 형성되어 전원노브(20)를 전, 후방으로 작동되도록 하는 노브수납공간(11)과, 노브수납공간(11)과 연통되게 벽면(12)의 중앙부에 형성되어 전원노브(20)의 중앙부에 돌출된 압압봉(21)이 전원스위치(30)의 개폐레버(31)를 동작시키도록 안내하는 작동구멍(13)과, 노브수납공간(11)과 연통등게 작동구멍(13)의 양측에 각각 형성되어 전원노브(20)의 양측에 돌출된 걸림턱(22)이 끼워져서 이탈되지 않게 걸리도록 하는 걸림구멍(14)과, 걸림구멍(14)의 안내를 받아 전, 후 작동되는 걸림턱(22)을 안내하여 전원노브(20)가 편심되지 하않고 정확하게 원상복귀하도록 걸림구멍(14)측의 벽면(12)의 상, 하부에 경사지게 형성되는 안내면(15)으로 전자제품의 전원노브 편심방지구조를 구성한다.The present invention relates to an anti-centering structure of the power knob of the electronic product, which is not eccentric during the operation of the power knob and is accurately mounted so that the power switch can be operated correctly. The power knob is formed on the lower side of the front side of the front cover 10. Knob storage space (11) for operating the front and rear (20), and the pressing rod protruding from the central portion of the power knob 20 is formed in the center of the wall surface 12 in communication with the knob storage space (11) 21 is formed on both sides of the operation hole 13 for guiding the opening / closing lever 31 of the power switch 30 and the knob storage space 11 and the communication hole 13 for communication. The locking jaw 22 which protrudes on both sides of the 20 is inserted so that the locking jaw 22 can be caught so as not to be separated, and the locking jaw 22 which is operated before and after receiving the guide of the locking hole 14 is guided. So that the power knob 20 does not eccentrically return to normal The yoke 14 constituting the phase, the power knob eccentricity preventive structure of the electronics with the guide surface 15 which is inclined to the lower wall 12 of the side.

Description

전자제품의 전원노브 편심방지구조Power knob eccentric prevention structure of electronic products

제1도는 전원노브의 설치예를 나타낸 전자제품의 사시도.1 is a perspective view of an electronic product showing an example of installation of a power knob.

제2도는 종래의 전원스위치작동구조를 나타낸 평단면도.2 is a plan sectional view showing a conventional power switch operation structure.

제3도는 프론트커버과 전원노브의 공차를 나타낸 요부 발췌 평면도.3 is a plan view of the main parts showing the tolerance of the front cover and the power knob.

제4도(a)(b)는 종래 전원노브동을 나타낸 구조도로서 작동전 및 작동시 기울어진 상태도.Figure 4 (a) (b) is a structural diagram showing the power knob operation in the prior art and inclined state during operation.

제5도는 제4도(b)의 걸림턱의 걸림상태도.5 is a locking state of the locking jaw of FIG.

제6도는 본 고안의 요부를 발췌한 사시도.Figure 6 is a perspective view of the main portion of the present invention.

제7도 (a)(b)는 본 고안 전원스위치동작장치를 나타낸 구조도로서 전원노브의 걸림턱 작동전 및 작동시 보정과정도.Figure 7 (a) (b) is a structural diagram showing the power switch operation device of the present invention is a process of correction before and during the operation of the locking step of the power knob.

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

10 : 프론트커버 11 : 노브수납공간10: front cover 11: knob storage space

12 : 벽면 13 : 작동구멍12 wall 13 operating hole

14 : 걸림구멍 15 : 안내면14: engaging hole 15: guide surface

20 : 전원노브 21 : 압압봉20: power knob 21: pressing rod

22 : 걸림턱 30 : 전원스위치22: jam jaw 30: power switch

40 : 탄력부재40: elastic member

본 고안은 전자제품의 전원노브에 관한 것으로, 특히 전원노브의 출몰작동시 편심되지 않고 정확하게 출몰되어 전원스위치를 정확하게 동작시키도록 안출한 전자제품의 전원노브 편심방지구조에 관한 것이다.The present invention relates to a power knob of an electronic product, and more particularly, to an eccentric prevention structure of a power knob of an electronic product, which is not eccentrically but is accurately shed when the power knob is in and out of operation.

일반적으로 모니터 및 TV등 전자제품의 전원스위치는 누름식으로써, 한번 누르면 전원이 온되고, 다시 또 누르면 전원이 오프되는 구조로 되어 있다.In general, power switches of electronic products such as monitors and TVs are push-type, and when pressed once, the power is turned on, and when pressed again, the power is turned off.

이러한 종래의 전원개폐구조는 제1도 내지 제5도와 같이, 프론트커버(10)의 전면 일측 하부에 형성된 노브수납공간(11)에 전, 후방으로 작동되도록 설치되는 누름식 전원노브(20)와, 전원노브(20)의 누름동작에 의하여 전원이 온, 오프되도록 개폐레버(31)가 설치된 전원스위치(30)와, 전원스위치(30)의 동작 후 전원노브(20)를 탄력되게 원상복귀시키는 탄력부재(40)로 구성되어 있다.This conventional power opening and closing structure is a push-type power knob 20 is installed to operate in front, rear in the knob storage space 11 formed in the lower front side of the front cover 10, as shown in FIGS. In order to power on and off by pressing the power knob 20, the power switch 30 is provided with an opening / closing lever 31 and the power knob 20 is elastically returned to its original position after the power switch 30 is operated. It is composed of a resilient member (40).

이때, 전원노브(20)는 중앙부에 전원스위치(30)의 개폐레버(31)를 작동시키는 압압봉(21)과, 압압봉(21)의 양측에 위치되게 각각 일체로 돌출시켜 프론트커버(10)에 걸리도록 하는 걸림턱(22)을 갖는 탄성걸림편(24)으로 구성되어 있으며, 프론트커버(10)의 노브수납공간(11)에는 전원노브(20)의 압압봉(21)이이 전, 후 작동되도록 안내하는 작동구멍(13)과, 작동구멍(13)의 양측에 전원노브(20)의 양측 걸림턱(22)이 끼워져서 이탈되지 않도록 조립되는 걸림구멍(14)으로 구성되어 있다.At this time, the power knob 20 is a push bar 21 for operating the opening and closing lever 31 of the power switch 30 in the central portion and the front cover 10 by protruding integrally to be located on both sides of the push bar 21, respectively. It is composed of an elastic locking piece 24 having a locking step 22 to be caught, the pressing rod 21 of the power knob 20 is moved to the knob storage space 11 of the front cover 10, It consists of a working hole 13 for guiding to be operated afterwards, and a locking hole 14 which is assembled on both sides of the operating hole 13 so as to be detached from both of the locking jaws 22 of the power knob 20.

이러한 전원개폐구조는, 전원 온, 오프하고자 하는 경우 제4도(a)에서 전원노브(20)를 누르면 전원노브(20)는 후퇴하여 전원스위치(30)의 개폐레버(31)를 누르게 되므로 전원이 온되고 다시 한번 전원노브(20)를 누르면 상술한 과정을 거쳐서 개폐레버(31)를 누르게 되므로 전원이 오프되는 구조로 되어 있다.In the power switching structure, when the power is turned on or off, the power knob 20 is pushed back in FIG. 4 (a) so that the power knob 20 is retracted and the opening / closing lever 31 of the power switch 30 is pressed. When the power supply knob 20 is turned on again, the opening and closing lever 31 is pressed through the above-described process, so that the power is turned off.

이때, 전원노브(20)를 원상복귀시키는 탄력부재(40)는 탄력있게 압축하였다가 전원노브(20)에 가해졌던 외력을 제거하면 탄성력으로 전원노브(20)를 원상복귀 하게 된다.At this time, the elastic member 40 for returning the power source knob 20 to the original shape is compressed elastically and when the external force applied to the power source knob 20 is removed, the power source knob 20 is returned to its original strength with elastic force.

그런데 프론트커버(10)의 노브수납공간(11)과 전원노브(20)의 외주연사이에는 제3도 같이 항상 일정한 공차(x)를 유지하여야 전원노브(20)의 압압봉(21)이 정확하게 전, 후 작동하여 전원스위치(30)의 개폐레버(31)를 작동시킬 수가 있는데, 개폐레버(31)는 슬라이딩되는 과정에서 좌우측으로 탄력걸림편(24)에 의해 편심이 발생하지 않지만 상하방향으로는 가이드부재가 존재하지 않으므로 제4도 (b) 및 제5도와 같이 전원노브(20)의 압압봉(21)과 걸림턱(22)의 프론트커버(10)의 작동구멍(13)과 걸림구멍(14)의 안내를 받아 전, 후 작동시 이들의 공차에 의하여 전원노브(20)과 편심되어 전원노브(20)의 걸림턱(22)이 프론트커버(10)의 벽면에 걸리게 되는 동시에 전원노브(20)의 일측 주연이 노브수납공간(11)의 면에 걸리게 되고, 이로인해 탄력부재의 탄력에도 불구하고 전원노브(20)는 원상태로 복귀되지 않아 개폐레버(31)를 계속해서 누르게 되므로 전원스위치(30)의 오동작이 빈번하게 발생되는 문제점이 있었다.However, between the knob storage space 11 of the front cover 10 and the outer circumferential edge of the power knob 20, the pressure bar 21 of the power knob 20 must be maintained exactly as shown in FIG. It can be operated before and after to operate the opening and closing lever 31 of the power switch 30, the opening and closing lever 31 in the sliding process does not occur eccentricity by the elastic engaging piece 24 to the left and right, but in the vertical direction Since the guide member does not exist, as shown in FIGS. 4B and 5, the pressing rod 21 of the power knob 20 and the operating hole 13 and the locking hole of the front cover 10 of the locking jaw 22 are illustrated. (14) guided by the tolerance of the power knob 20 during their operation before and after the eccentricity so that the locking jaw 22 of the power knob 20 is caught on the wall surface of the front cover 10 at the same time One side circumference of (20) is caught on the surface of the knob storage space (11), which causes the front Knob 20 is pressed, so it does not return to the original position to continue closing the lever 31, there is a problem that occurs frequently when a malfunction of the power switch 30.

또한 다른 선행기술로는 대한민국 실용신안공고번호 제 90-3611호가 개시되어 있으나, 상기 선행기술은 걸이턱을 걸때에 파손될 우려가 있고, 또한 탄편이 휨이 발생할 경우에는 오동작이 발생하는 문제점이 있으며, 탄편이라는 부품이 부가적으로 더 있어야 하므로 부품수증가에 따른 원가 상승이 초래하는 또 다른 문제점을 수반하고 있었다.In addition, the Republic of Korea Utility Model Publication No. 90-3611 is disclosed as another prior art, the prior art may be damaged when hanging the hook, there is also a problem that the malfunction occurs when the ball is bent, As there were additional parts called coal pieces, there was another problem caused by the cost increase due to the increase of parts.

본 고안은 이러한 종래의 문제점을 해결하고자 하는 것으로, 전원노브의 출몰작동시 편심되지 않고 정확하게 출몰되어 전원스위치를 정확하게 동작시키고자 전자제품의 전원노브 편심방지구조를 제공하는 데 그 목적이 있다.The present invention is to solve such a conventional problem, the object of the present invention is to provide a power knob eccentricity prevention structure of an electronic product to accurately operate the power switch is not eccentric at the time of the operation of the power knob.

본 고안은 이러한 목적을 달성하기 위하여, 프론트커버의 전면 일측 하부에 형성되어 전원노브를 전, 후방으로 작동되도록 하는 노브수납공간과, 노브수납공간과 연통되게 벽면의 중앙부에 형성되어 전원노브의 중앙부에 돌출된 압압봉이 전원스위치의 개폐레버를 동작시키도록 안내하는 작동구멍과, 노브수납공간과 연통되게 작동구멍의 양측에 각각 형성되어 전원노브의 양측에 돌출된 걸림턱이 끼워져서 이탈되지 않게 걸리도록 하는 걸림구멍과, 걸림구멍의 안내를 받아 전, 후 작동되는 걸림턱을 안니하여 전원노브가 편심되지 않고 정확하게 원상복귀하도록 걸림구멍측의 벽면의 상, 하부에 경사지게 형성되는 안내면으로 전자제품의 전원노브 편심방지구조를 구성한 것이 본 고안의 특징이다.In order to achieve the above object, the present invention provides a knob storing space formed at one lower side of the front side of the front cover to operate the power knob forward and backward, and formed at a central portion of the wall in communication with the knob storing space to form a central portion of the power knob. The pressure bar protruding from the operation hole guides the opening and closing lever of the power switch, and is formed on both sides of the operation hole in communication with the knob storage space, so that the locking jaws protruding on both sides of the power knob are inserted so as not to be detached. It is a guide hole which is inclined on the upper and lower part of the wall surface of the locking hole so that the power knob does not eccentrically and correctly returns to its original position without the locking hole to be caught and the locking jaw operated before and after receiving the guide of the locking hole. It is a feature of the present invention to configure the power knob eccentric prevention structure of.

이하 본 고안을 첨부도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도면 제1도, 제6도 및 제7도는 본 고안의 실시예로서, 프론트커버(10)의 전면 일측 하부에 형성되어 전원노브(20)를 전, 후방으로 작동되도록 하는 노브수납공간(11)과, 노브수납공간(11)과 연통되게 벽면(12)의 중앙부에 형성되어 전원노브(20)의 중앙부에 돌출된 압압봉(21)이 전원스위치(30)의 개폐레버(31)를 동작 시키도록 안내하는 작동 구멍(13)과, 노브수납공간(11)과 연통되게 작동구멍(13)의 양측에 각각 형성되어 전원노브(20)의 양측에 돌출된 걸림턱(22)이 끼워져서 이탈되지 않게 걸리도록 하는 걸림구멍(14)과, 걸림구멍(14)의 안내를 받아 전, 후 작동되는 걸림턱(22)을 안내하여 전원노브(20)가 펼심되지 않고 정확하게 원상복귀하도록 걸림구멍(14)측의 벽면(12)의 상, 하부에 경사지게 형성되는 안내면(15)으로 전자제품의 전원노브 편심방지구조를 구성한다.1, 6 and 7 are embodiments of the present invention, the knob storage space 11 is formed on the lower side of the front side of the front cover 10 to operate the power knob 20 to the front, rear And, the push rod 21 formed in the center of the wall surface 12 in communication with the knob storage space 11 protruding in the center of the power knob 20 to operate the opening and closing lever 31 of the power switch 30. The locking projections 22 which are formed on both sides of the operation hole 13 to communicate with the knob storage space 11 and protrude on both sides of the power knob 20 are inserted into and separated from each other. Guide the locking hole 14 and the locking jaw 22 which is operated before and after receiving the guide of the locking hole 14 so that the power knob 20 can be correctly returned to its original shape without being unfolded. The guiding surface 15 formed to be inclined on the upper and lower portions of the wall surface 12 on the side) constitutes the power knob eccentric prevention structure of the electronic product. .

상기 전원노브(20)는 프론트커버(10)의 노브수납공간(11)에 설치된 탈력부재(40)에 의하여 탄력있게 원상복귀하도록 한다.The power knob 20 is elastically returned to its original shape by the force-removing member 40 installed in the knob storage space 11 of the front cover 10.

상기한 구성에서의 본원 고안의 주된특징은, 걸림턱(22)이 끼워져서 이탈되지 않게 걸리도록 하는 걸림구멍(14)과, 걸림구멍(14)의 안내를 받아 전, 후 작동되는 걸림턱(22)을 안내하여 전원노브(20)가 편심되지 않고 정확하게 원상복귀하도록 걸림구멍(14)측의 벽면(12)의 상, 하부에 경사지게 형성되는 안내면(15)으로 전자제품의 전원노브 편심방지구조를 구성한 것이다.The main features of the present invention in the above-described configuration, the locking hole 14 to be caught so that the locking jaw 22 is inserted and not to be separated, and the locking jaw that is operated before and after receiving the guide of the locking hole 14 ( 22) the power knob eccentric prevention structure of the electronic product with a guide surface 15 formed to be inclined on the upper and lower portions of the wall surface 12 on the engaging hole 14 side so that the power knob 20 is not eccentric and accurately returns to its original shape. It is configured.

이와같이 구성된 본 고안은, 제4도(a)와 같은 상태에서 전원노브(20)를 누르면 전원노브(20)는 후퇴하면서 탄력부재(40)를 압축하게 되고, 후퇴되는 전원노브(20)는 전원스위치(30)의 개폐레버(31)를 동작시키게 되므로 전원을 온, 오프하게 된다.According to the present invention configured as described above, when the power knob 20 is pressed in the state as shown in FIG. 4 (a), the power knob 20 retracts and compresses the elastic member 40, and the power knob 20 that is retracted is powered Since the opening and closing lever 31 of the switch 30 is operated, the power is turned on and off.

이때, 전원노브(20)의 압압봉(21)과 양측 걸림턱(22)은 프론트커버(10)의 작동구멍(13)과 걸림구멍(14)의 안내를 받아 전, 후 슬라이딩하게 되며, 전원노브(20)는 전원스위치(30)를 온, 오프한 뒤 외력을 제거하면 압축되어 있던 탄력부재(40)의 탄력에 의하여 상술한 바와 같이 슬라이딩되어 원상복귀하게 된다.At this time, the pressing rod 21 and both locking jaws 22 of the power knob 20 are slid before and after receiving the guide of the operation hole 13 and the locking hole 14 of the front cover 10, When the knob 20 is turned off and on after the power switch 30 is removed, the knob 20 is slid as described above by the elasticity of the elastic member 40 that has been compressed to return to the original position.

이때, 원상복귀되는 전원노브(20)의 걸림턱(22)이 전방으로 슬라이딩하면서 원상복귀과정에서 제7도(b)와 같이 상부 또는 하부로 편심하는 경우 양측 걸림턱(22)도 상부 또는 하부로 기울어진 상태로 슬라이딩하게 되며, 슬라이딩되는 양측 걸림턱(22)이 프론트커버(10)의 걸림구멍(14)측의 경사진 안내면(15)에 접촉하게 되고, 그 안내면(15)은 상, 하부에 각각 형성되어 있어 양측 걸림턱(22)이 안내면(15)의 안내를 받아 걸리지 않고 프론트커버(10)의 걸림구멍(14)측의 좌, 우측 벽면(12)에 걸리도록 하므로써, 전원노브(20)가 정확하게 정위치에 셋팅이 되어 노브수납공간(11)과 전원노브(20)의 외주면사이의 공차(x)가 항상 일정하게 유지되는 동시에 전원스위치(30)의 개폐레버(31)를 동작시키게 되므로 전원스위치(30)의 오동작을 방지하게 되는 것이다.At this time, when the locking jaw 22 of the power knob 20 to be returned to the original while sliding forward or eccentric to the upper or lower as shown in FIG. It slides in an inclined state, and the sliding both sides of the engaging jaw 22 is in contact with the inclined guide surface 15 on the engaging hole 14 side of the front cover 10, the guide surface 15 is upper, It is formed in the lower portion, respectively, so that both the locking jaw 22 is caught on the left and right wall surface 12 on the locking hole 14 side of the front cover 10 without being caught by the guide surface 15, the power knob (20) is set in the correct position so that the tolerance (x) between the knob storage space 11 and the outer peripheral surface of the power knob 20 is always kept constant and at the same time the opening and closing lever 31 of the power switch 30 is Since the operation is to prevent the malfunction of the power switch (30).

이와같이 본 고안은 전원노브의 출몰작동작시 편심되지 않고 정확하게 출몰되어 전원스위치의 오동작없이 정확하게 동작시킬 수 있어 전자제품의 품질과 신뢰성을 높일 수가 있는 것이다.In this way, the present invention is not eccentric when the operation of the power knob, it is not eccentricity can be precisely operated without malfunction of the power switch can improve the quality and reliability of electronic products.

Claims (1)

프론트커버의 전면 일측 하부에 형성되어 전원노브를 전, 후방으로 작동되도록 하는 노브수납공간과, 노브수납공간과 연통되게 벽면의 중앙부에 형성되어 전원노브의 중앙부에 돌출된 압압봉이 전원스위치의 개폐레버를 동작시키도록 안내하는 작동구멍과, 노브수납공간과 연통되게 작동구멍의 양측에 각각 형성되어 전원노브의 양측에 돌출된 걸림턱이 끼워져서 이탈되지 않게 걸리도록 하는 걸림구멍을 갖는 것으로서, 상기 걸림구멍의 안내를 받아 전, 후 작동 되는 걸림턱을 안내하여 전원노브가 편심되지 않고 정확하게 원상복귀하도록 걸림구멍측의 벽면이 상, 하부에 경사지게 형성되는 안내면을 포함하여 구성된 것을 특징으로 하는 전자제품의 전원노브 편심방지구조.Knob storage space is formed on the lower side of the front side of the front cover to operate the power knob to the front and rear, and the pressure bar is formed in the center of the wall in communication with the knob storage space, protruding from the center of the power knob to open and close the power switch And a working hole for guiding the lever to operate, and a locking hole respectively formed at both sides of the operating hole in communication with the knob storage space so that the engaging jaws protruding from both sides of the power supply knob are inserted so as not to be detached. Electronic products characterized in that it comprises a guide surface formed by inclining the upper and lower wall surface of the locking hole side to guide the locking jaws operated before and after receiving the guide of the locking hole to return to the original position accurately without eccentricity Power knob eccentricity prevention structure.
KR2019950028029U 1995-10-07 1995-10-07 Eccentricity preventing knob structure KR0129177Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019950028029U KR0129177Y1 (en) 1995-10-07 1995-10-07 Eccentricity preventing knob structure

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Application Number Priority Date Filing Date Title
KR2019950028029U KR0129177Y1 (en) 1995-10-07 1995-10-07 Eccentricity preventing knob structure

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KR970019189U KR970019189U (en) 1997-05-26
KR0129177Y1 true KR0129177Y1 (en) 1998-12-15

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