KR100542364B1 - Wire communication terminal - Google Patents

Wire communication terminal Download PDF

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Publication number
KR100542364B1
KR100542364B1 KR1020040003100A KR20040003100A KR100542364B1 KR 100542364 B1 KR100542364 B1 KR 100542364B1 KR 1020040003100 A KR1020040003100 A KR 1020040003100A KR 20040003100 A KR20040003100 A KR 20040003100A KR 100542364 B1 KR100542364 B1 KR 100542364B1
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KR
South Korea
Prior art keywords
key button
communication terminal
housing
pressing member
wired communication
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KR1020040003100A
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Korean (ko)
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KR20050075155A (en
Inventor
서호경
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삼성전자주식회사
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Priority to KR1020040003100A priority Critical patent/KR100542364B1/en
Publication of KR20050075155A publication Critical patent/KR20050075155A/en
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Publication of KR100542364B1 publication Critical patent/KR100542364B1/en

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    • 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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • 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
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • 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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/78—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites
    • H01H13/79—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites characterised by the form of the contacts, e.g. interspersed fingers or helical networks
    • 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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/78—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites
    • H01H13/80—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites characterised by the manner of cooperation of the contacts, e.g. with both contacts movable or with bounceless contacts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Push-Button Switches (AREA)

Abstract

이동통신단말기는 신호 전달을 위한 스위치 장치를 갖는 유선통신단말기에 있어서, 스위치 장치는 내부에 부품이 수용되며 상측으로 다수의 키홀이 형성된하우징과, 하우징의 외측으로 돌출되도록 키홀에 삽입되는 키버튼과, 하우징의 배면에 설치되며 키버튼을 외팔보 형태로 지지하는 지지유닛과, 키버튼의 타측 배면에 하향돌출되게 설치되는 누름부재와, 누름부재와 대응되는 위치에 돔 스위치가 설치된 인쇄회로기판을 포함한다.The mobile communication terminal is a wired communication terminal having a switch device for transmitting a signal, the switch device includes a housing in which a part is received and a plurality of key holes are formed on the upper side, and a key button inserted into the key hole to protrude out of the housing; And a support unit installed on the back of the housing and supporting the key button in the form of a cantilever, a pressing member installed downwardly on the other side of the key button, and a printed circuit board on which a dome switch is installed at a position corresponding to the pressing member. do.

Description

유선 통신 단말기{WIRE COMMUNICATION TERMINAL}Wired Communication Terminal {WIRE COMMUNICATION TERMINAL}

도 1a,1b는 종래의 유선통신단말기에 설치된 키버튼의 동작을 도시한 도면,Figure 1a, 1b is a view showing the operation of the key button installed in a conventional wired communication terminal,

도 2는 본 발명에 따른 유선통신단말기의 키버튼을 도시한 도면,2 is a view showing a key button of a wired communication terminal according to the present invention;

도 3은 본 발명에 따른 유선통신단말기 키버튼의 일실시예를 도시한 도면이다.3 is a diagram illustrating an embodiment of a wired communication terminal key button according to the present invention.

* 도면의 주요 부호에 대한 간단한 설명 *Brief description of the main symbols in the drawings

10 : 하우징 13 : 키홀10 housing 13 keyhole

20 : 키버튼 30 : 지지유닛20: key button 30: support unit

40 : 누름부재 50 : 인쇄회로기판40: pressing member 50: printed circuit board

53 : 돔 스위치 100 : 스위치장치53: dome switch 100: switch device

본 발명은 유선통신단말기에 관한 것으로서, 보다 상세하게는 유선통신단말기에 설치된 키버튼의 측부를 눌러도 돔 스위치와 접점을 갖도록 하는 유선통신단말기에 관한 것이다.The present invention relates to a wired communication terminal, and more particularly, to a wired communication terminal having a contact with a dome switch even when the side of a key button installed in the wired communication terminal is pressed.

일반적으로, 통신단말기는 유무선 통신단말기로 구분될 수 있으며, 유선통신 단말기는 사무용이나 가정용 전화기가 대표적이고, 무선통신단말기는 휴대가 간편하여 이동하면서 사용가능한 PCS(Global Mobile Personal Communications by Satellite)나 셀룰러 폰 또는 PDA(Personal Digital Assistants)가 대표적인 예이다.In general, a communication terminal may be classified into a wired or wireless communication terminal, and a wired communication terminal is typical of an office or home telephone, and a wireless communication terminal is portable and can be used while moving. Phones or PDAs (Personal Digital Assistants) are typical examples.

통신단말기는 신호 발생을 위한 스위치 장치로서 인쇄회로기판과 접점을 형성하도록 키버튼이 설치되는데, 소형화가 요구되는 무선통신단말기의 키버튼은 그 크기가 작게 형성되므로 인쇄회로기판의 상측에 그 크기가 작고 상측으로 볼록한 돔 스위치를 설치하여 키버튼의 설치공간 및 돌출을 최소화하고 소음발생을 줄일 수 있다.The communication terminal is a switch device for signal generation, and a key button is installed to form a contact point with the printed circuit board. Since the key button of the wireless communication terminal requiring miniaturization is formed small in size, By installing a small, upwardly convex dome switch, the installation space and protrusion of the key button can be minimized and noise can be reduced.

그러나, 유선통신단말기의 키버튼은 그 크기가 커서 키버튼의 일측을 눌렀을 때 돔 스위치의 크기가 소형이므로 접점을 이루기 어려운 문제점이 있다.However, the key button of the wired communication terminal has a problem that it is difficult to form a contact because the size of the dome switch is small when one side of the key button is pressed.

이에 따라, 유선통신단말기의 키버튼은 도 1a에 도시된 바와 같이, 단말기의 키버튼(5)이 끼워지는 키홀(3)이 형성된 하우징(1)과, 키버튼(5)의 하측에 설치되며 가압여부에 따라 제1접점(8a)이 인쇄회로기판(9)의 제2접점(8b)과 접촉되도록 컨덕티브 루버(7)로 구성된다.Accordingly, as shown in FIG. 1A, the key button of the wired communication terminal is provided at the lower side of the housing 1 and the key button 5 in which the key hole 3 into which the key button 5 of the terminal is fitted is formed. The conductive contact louver 7 is configured such that the first contact point 8a contacts the second contact point 8b of the printed circuit board 9 depending on whether or not the pressure is applied.

키버튼(5)은 양측에 하우징(1)의 키홀(3) 배면과 접촉하며 키홀(3)의 외부로 빠져나가지 않도록 지지하도록 플랜지부(5a)가 형성된다.The key button 5 is formed on both sides in contact with the back of the key hole 3 of the housing 1 and the flange portion 5a is formed so as not to escape from the outside of the key hole 3.

컨덕티브 루버(7)는 상부가 키버튼(5)에 접촉되도록 설치되고, 소정의 간격을 갖는 하부가 인쇄회로기판(9)에 설치되며, 상부의 배면에 제1접점(8a)이 설치된다.The conductive louver 7 is installed so that the upper part is in contact with the key button 5, and the lower part having a predetermined interval is installed on the printed circuit board 9, and the first contact point 8a is provided on the rear surface of the upper part. .

또한, 컨덕티브 루버(7)의 상부와 하부는 상부의 가압여부에 따라 접혀지거나 펼쳐지는 연결부(7a)에 의해 연결된다.In addition, the upper and lower portions of the conductive louver 7 are connected by the connecting portion 7a that is folded or unfolded according to the pressurization of the upper portion.

상기와 같은 유선통신단말기의 키버튼(5)은 단말기를 사용하기 위해 키버튼(5)을 가압하면 도1b에 도시된 바와 같이, 컨덕티브 루버(7)의 연결부(7a)가 접혀지면서 컨덕티브 루버(7)의 제1접점(8a)과 인쇄회로기판(9)의 제2접점(8b)이 접촉되어 명령을 수행한다.When the key button 5 of the wired communication terminal as described above is pressed by the key button 5 to use the terminal, as shown in FIG. 1B, the connecting portion 7a of the conductive louver 7 is folded and conductive. The first contact 8a of the louver 7 and the second contact 8b of the printed circuit board 9 come into contact with each other to execute a command.

그런데, 이와 같은 유선통신단말기는 컨덕티브 루버(7)의 연결부(7a)가 접혀지거나 펼쳐질 공간을 확보해야하므로 키버튼(5)이 하우징(1)의 외측으로 많이 돌출된다. 따라서, 키버튼(5)이 가압됨에 따라 컨덕티브 루버(7)의 연결부(7a)가 접혀질 때 연결부(7a)의 높이에 의해 흔들리는 문제점이 발생한다.However, since the wired communication terminal needs to secure a space in which the connecting portion 7a of the conductive louver 7 is folded or unfolded, the key button 5 protrudes outwardly from the housing 1. Therefore, when the key button 5 is pressed, a problem arises in that the connecting portion 7a of the conductive louver 7 is shaken by the height of the connecting portion 7a.

또한, 키버튼(5)의 가압이 해제되어 컨덕티브 루버(7)의 연결부(7a)가 펼쳐지면서 키버튼(5)이 복귀할 때, 키버튼(5)의 플랜지부(5a)와 하우징(1)의 배면이 접촉하여 소음이 발생하는 문제점이 있다.In addition, when the pressurization of the key button 5 is released and the connection part 7a of the conductive louver 7 is unfolded and the key button 5 is returned, the flange portion 5a of the key button 5 and the housing ( There is a problem that the noise is generated by the back of the contact 1).

그리고, 상기 키버튼(5)의 플랜지부(5a)와 하우징(1)의 배면이 접촉하여 발생하는 소음은 유선통신단말기의 스피커 폰 기능을 사용할 때 음압의 진동에 의해 발생되기도 한다.In addition, the noise generated by contact between the flange portion 5a of the key button 5 and the rear surface of the housing 1 may be generated by vibration of sound pressure when using the speaker phone function of the wired communication terminal.

상술한 바와 같은 문제점을 해결하기 위한 본 발명의 목적은, 유선통신단말기의 키버튼에 돔스위치를 채용하여 키버튼의 형상이 돔스위치의 돔 크기에 비해 상대적으로 클 경우에도 접점을 형성하여 키버튼의 떨림 현상을 방지하는 유선통신 단말기를 제공하는 것이다.An object of the present invention for solving the above problems is to adopt a dome switch in the key button of the wired communication terminal, even if the shape of the key button is relatively large compared to the size of the dome of the dome switch to form a key button It is to provide a wired communication terminal to prevent the shaking phenomenon.

상기와 같은 목적을 달성하기 위한 본 발명은 신호 전달을 위한 스위치 장치를 갖는 유선통신단말기에 있어서, 상기 스위치 장치는 내부에 부품이 수용되며 상측으로 다수의 키홀이 형성된하우징과, 상기 하우징의 외측으로 돌출되도록 상기 키홀에 삽입되는 키버튼과, 상기 하우징의 배면에 설치되며 상기 키버튼을 외팔보 형태로 지지하는 지지유닛과, 상기 키버튼의 타측 배면에 하향돌출되게 설치되는 누름부재와, 상기 누름부재와 대응되는 위치에 돔 스위치가 설치된 인쇄회로기판을 포함하는 유선통신단말기를 제공한다.The present invention for achieving the above object is a wired communication terminal having a switch device for signal transmission, the switch device is a housing therein and a plurality of key holes are formed in the upper housing and the outside of the housing A key button inserted into the key hole to protrude, a support unit installed on a rear surface of the housing and supporting the key button in the form of a cantilever beam, a pressing member installed downwardly on the other rear surface of the key button, and the pressing member Provided is a wired communication terminal including a printed circuit board having a dome switch installed at a position corresponding thereto.

상기 지지유닛은 상기 하우징의 배면에 돌출되게 설치된 고정돌기와, 일측은 상기 고정돌기에 고정되고 타측은 상기 키버튼의 측면에 고정되는 고정부재로 된 것이 바람직하다.The support unit is preferably a fixing member installed to protrude on the rear surface of the housing, one side is fixed to the fixing projection and the other side is fixed member fixed to the side of the key button.

상기 키버튼의 상단은 상기 누름부재가 설치된 측이 높도록 경사지게 형성된 것이 바람직하다.The upper end of the key button is preferably formed to be inclined so that the side on which the pressing member is installed.

상기 인쇄회로기판의 상측에 설치된 돔 스위치의 상면을 커버하는 커버부재가 추가로 구비된 것이 바람직하다.Preferably, a cover member is further provided to cover an upper surface of the dome switch provided on the upper side of the printed circuit board.

상기 커버부재는 상기 누름부재와 접촉되는 부분이 국부적으로 얇게 형성된 것이 바람직하다.Preferably, the cover member is formed to be locally thin in contact with the pressing member.

이하에서는 첨부도면을 참조하여 본 발명에 대해 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 유선통신단말기의 키버튼을 도시한 도면이다. 이 도 면에 도시된 바와 같이, 유선통신단말기는 신호를 전달하여 명령을 수행하도록 스위칭장치(100)가 포함된다.2 is a view showing a key button of a wired communication terminal according to the present invention. As shown in this figure, the wired communication terminal includes a switching device 100 to transmit a signal to perform a command.

상기 스위칭 장치(100)는 그 내부에 명령을 수행하기 위한 부품이 수용되며 상측에 다수의 키홀(13)이 형성된 하우징(10)과, 하우징의 외측으로 돌출되게 키홀(13)에 삽입되는 키버튼(20)과, 키버튼(20)의 일측을 하우징에 고정시키는 외팔보 형태의 지지유닛(30)과, 키버튼(20)의 타측 배면에 하향돌출되게 설치되는 누름부재(40)와, 누름부재(40)와 대응되는 위치에 돔 스위치(53)가 설치된 인쇄회로기판(50)으로 구성된다.The switching device 100 has a housing 10 having a part for executing a command therein and having a plurality of key holes 13 formed therein, and a key button inserted into the key hole 13 to protrude out of the housing. 20, a cantilever-shaped support unit 30 for fixing one side of the key button 20 to the housing, a pressing member 40 installed downwardly protruding from the other rear surface of the key button 20, and a pressing member. It consists of a printed circuit board 50 provided with a dome switch 53 at a position corresponding to 40.

지지유닛(30)은 하우징의 배면에 돌출되게 설치된 고정돌기(31)와 일측은 고정돌기(31)에 고정되고, 타측은 키버튼(20)의 측면에 고정되는 고정부재(33)로 이루어진다.The support unit 30 has a fixing protrusion 31 installed to protrude on the rear surface of the housing and one side is fixed to the fixing protrusion 31, the other side is composed of a fixing member 33 fixed to the side of the key button 20.

돔 스위치(53)는 인쇄회로기판(50)의 상측에 설치된 도시되지 않은 접점과 누름부재(40)의 가압에 의해 인쇄회로기판(50)의 돔 형상을 갖는 스위칭 부재(53')가 돔 내측으로 휘어지면서 스위칭 부재(53')의 내측에 설치된 접점(미도시)이 접촉하여 신호가 전달되도록 구성된다.The dome switch 53 is a switching member 53 'having a dome shape of the printed circuit board 50 by pressing the pressing member 40 and an unillustrated contact provided on the upper side of the printed circuit board 50. While being bent in contact with a contact (not shown) installed inside the switching member 53 ', the signal is configured to be transmitted.

또한, 인쇄회로기판(50)의 상측에 설치되어 누름부재(40)와 접촉되는 돔 스위치(53)의 스위칭 부재(53') 상면에는 커버부재(55)가 설치되는 것이 바람직하다.In addition, the cover member 55 may be installed on the upper surface of the switching member 53 'of the dome switch 53 provided on the printed circuit board 50 and in contact with the pressing member 40.

커버부재(55)는 누름부재(40)와 접촉되는 부분이 국부적으로 얇게 형성된 것이 바람직하다.It is preferable that the cover member 55 is formed to be locally thin in contact with the pressing member 40.

한편, 키버튼(20)의 상단은 그 배면에 누름부재(40)가 설치된 측이 높게 경 사지게 형성된 것이 바람직하다.On the other hand, it is preferable that the upper end of the key button 20 is formed to be inclined high side the pressing member 40 is installed on the back.

이하에서는 이러한 구성에 의하여, 본 발명에 따른 유선통신단말기를 통해 작용 및 효과를 설명한다.Hereinafter, by this configuration, the operation and effect through the wired communication terminal according to the present invention.

사용자가 소정의 신호를 전달하기 위해 도 2에 도시된 바와 같이, 스위치 장치(100)의 키버튼(20)을 가압하면, 가압된 힘은 키버튼(20)의 일측이 지지유닛(30)의 고정돌기(31)와 고정부재(33)를 통해 고정되어 있으므로 키버튼(20)의 타측으로 전달된다. As shown in FIG. 2 in order to transmit a predetermined signal, when the user presses the key button 20 of the switch device 100, the pressed force is one side of the key button 20 of the support unit 30. Since it is fixed through the fixing protrusion 31 and the fixing member 33 is transmitted to the other side of the key button (20).

키버튼(20)의 타측에 전달된 힘은 누름부재(40)를 통해 돔스위치(53)의 스위칭부재(53')를 가압하여 스위칭부재(53')의 내측에 설치된 접점과 인쇄회로기판(50)의 접점을 접촉시켜 신호가 전달된다.The force transmitted to the other side of the key button 20 presses the switching member 53 'of the dome switch 53 through the pressing member 40, and the contact and printed circuit board installed inside the switching member 53' ( The signal is transmitted by contacting the contacts of 50).

여기서, 스위칭부재(53')의 상측을 얇게 커버하는 커버부재(55)에 의해 누름부재(40)가 스위칭부재(53')를 가압할 때 발생하는 반발력이 상쇄된다.Here, the repulsive force generated when the pressing member 40 presses the switching member 53 'is offset by the cover member 55 which covers the upper side of the switching member 53' thinly.

즉, 이는 지렛대의 원리로서, 지지유닛(30)이 받침점(支點)이 되고, 힘이 가해지는 키버튼(20)이 힘점(力點), 그리고 물체에 힘이 작용하는 누름부재(40)가 작용점(作用點)된다. That is, this is a principle of the lever, the support unit 30 is a support point (支點), the key button 20 to which the force is applied is the force point, and the pressing member 40 that the force acts on the object It is working point (作用 點).

따라서, 사용자가 키버튼(20)을 가압하는 지점에 작용되는 힘과 지지유닛(30)까지의 거리에 따른 힘의 모멘트가 키버튼(20)에 작용되고, 키버튼(20)의 한쪽만 고정된 외팔보 형태의 지지유닛(30)에 의해 힘의 모멘트가 증폭되므로 키버튼(20)의 어느 부분을 눌러도 힘은 누름부재(40)로 전달된다.Therefore, a moment of force acting on the point at which the user presses the key button 20 and a moment of force according to the distance to the support unit 30 is applied to the key button 20, and only one side of the key button 20 is fixed. Since the moment of force is amplified by the cantilever-shaped support unit 30, the force is transmitted to the pressing member 40 even when any portion of the key button 20 is pressed.

이때, 키버튼(20)은 도 3에 도시된 보와 같이, 그 상단이 누름부재(40)가 설 치된 측의 경사도가 높게 경사지게 형성되면 사용자가 키버튼(20)의 돌출된 측을 누르도록 유도하여 하우징(10)에 손가락이 먼저 닿지 않도록 할 수 있다.At this time, the key button 20, as shown in Figure 3, the upper end is formed to be inclined high inclination of the side on which the pressing member 40 is installed so that the user presses the protruding side of the key button 20. By induction, the finger may not touch the housing 10 first.

이상 설명한 바와 같이, 본 발명에 따른 유선통신단말기는 키버튼의 일측이 고정됨에 따라 키버튼의 형상이 커도 키버튼의 어느 부분을 눌러도 지렛대의 원리에 의해 누름부재로 힘이 전달되므로 소형 돔스위치를 누를 수 있는 효과가 있다.As described above, since the wired communication terminal according to the present invention is fixed to one side of the key button, even if the key button is large, any portion of the key button is transmitted to the pressing member according to the principle of the lever, so that a small dome switch is used. It can be pressed.

또한, 돔 스위치를 채용함에 따라 키버튼과 인쇄회로기판의 거리가 짧아져 스피커 폰 기능을 사용할 때 발생하는 음떨림으로 유발되는 소음을 방지하는 효과가 있다.In addition, since the distance between the key button and the printed circuit board is shortened by employing the dome switch, there is an effect of preventing the noise caused by the noise generated when using the speaker phone function.

그리고, 돔 스위치와 누름부재가 접촉되는 부분에 커버부재가 얇게 설치되므로 키버튼을 누를 때 클릭감을 떨어뜨리지 않으면서 누름부재의 힘이 돔 스위치를 가압할 때 발생하는 반발력을 상쇄시켜 제품성을 상승시키는 효과가 있다.In addition, since the cover member is thinly installed at the portion where the dome switch and the pressing member contact, the repulsive force generated when the pressure of the pressing member presses the dome switch increases the productability without lowering the feeling of click when the key button is pressed. It is effective to let.

이와 같이, 본 발명의 상세한 설명에서는 구체적인 실시예에 관해 설명하였으나, 본 발명의 범주에서 벗어나지 않는 한도 내에서 여러 가지 변형이 가능함은 물론이다. 그러므로, 본 발명의 범위는 설명된 실시예에 국한되어 정해져서는 안되며 후술하는 특허청구범위 뿐만 아니라, 이 특허청구범위와 균등한 것들에 의해 정해져야 한다.As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims below, but also by those equivalent to the claims.

Claims (5)

신호 전달을 위한 스위치 장치를 갖는 유선통신단말기에 있어서,In a wired communication terminal having a switch device for signal transmission, 상기 스위치 장치는 내부에 부품이 수용되며 상측으로 다수의 키홀이 형성된하우징;The switch device includes a housing in which parts are received and a plurality of keyholes are formed above; 상기 하우징의 외측으로 돌출되도록 상기 키홀에 삽입되는 키버튼;A key button inserted into the key hole to protrude out of the housing; 상기 하우징의 배면에 설치되며 상기 키버튼을 외팔보 형태로 지지하는 지지유닛;A support unit installed on a rear surface of the housing and supporting the key button in a cantilever shape; 상기 키버튼의 타측 배면에 하향돌출되게 설치되는 누름부재;A pressing member installed downwardly on the other rear surface of the key button; 상기 누름부재와 대응되는 위치에 돔 스위치가 설치된 인쇄회로기판;을 포함하는 유선통신단말기.And a printed circuit board having a dome switch installed at a position corresponding to the pressing member. 제 1항에 있어서,The method of claim 1, 상기 지지유닛은 상기 하우징의 배면에 돌출되게 설치된 고정돌기;와,The support unit is a fixing projection protruding on the rear surface of the housing; 일측은 상기 고정돌기에 고정되고 타측은 상기 키버튼의 측면에 고정되는 고정부재;로 된 것을 특징으로 하는 유선통신단말기.One side is fixed to the fixing protrusion and the other side is a fixed member fixed to the side of the key button; Wired communication terminal, characterized in that the. 제 1항에 있어서,The method of claim 1, 상기 키버튼의 상단은 상기 누름부재가 설치된 측이 높도록 경사지게 형성된 것을 특징으로 하는 유선통신단말기.The upper end of the key button is a wired communication terminal, characterized in that formed inclined so that the side is installed the pressing member. 제 1항에 있어서,The method of claim 1, 상기 인쇄회로기판의 상측에 설치된 돔 스위치의 상면을 커버하는 커버부재가 추가로 구비된 것을 특징으로 하는 유선선통신단말기.Wireline communication terminal characterized in that the cover member is further provided to cover the upper surface of the dome switch installed on the upper side of the printed circuit board. 제 4항에 있어서,The method of claim 4, wherein 상기 커버부재는 상기 누름부재와 접촉되는 부분이 국부적으로 얇게 형성된 것을 특징으로 하는 유선통신단말기.The cover member is a wired communication terminal, characterized in that the portion in contact with the pressing member is formed locally thin.
KR1020040003100A 2004-01-15 2004-01-15 Wire communication terminal KR100542364B1 (en)

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