1362603 l’oo年Γ2月0·5日慘正替换頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種按鍵結構，特別是一種涉及複數方向操 作的多向式按鍵。 【先前技術】 [0002] 隨著桌上型電腦、筆記型電腦、網路產品、通訊產品和 各種消費性電子產品的發展，該等電子產品的功能不斷 増加，相應的按鍵數量也就隨之增多。另一方面，各類 可檇式產品越來越向小型化發展，需要將按鍵接觸面積 盡可能縮小。然而縮小按鍵面積會讓使用者容易同時按 下複數鍵或者按錯鍵，導致誤操作，帶來使用上的不便 〇 [0003] 為了解決上述問題，現有技術令有採用單個按鍵完成複 數操作指令的設計，此類按鍵一般被稱為多功能按鍵或 者多向式按鍵。 [〇〇〇4]多向式按鍵已廣泛用於家電的遙控器、手機、可搞式DVD 等設備上，主要用於進行電器音量大小的調節、頻道的 調節、方向的控制等。該等按鍵都由一個較大鍵帽以及 一個觸壓柱構成’然而，在使用過程中，這類按鍵很容 易發生轉動或者偏移，因為多向式按鍵同時負責著複數 觸點的按壓工作，對位置的要求比單一按鍵要高出許多 ’鍵帽的旋轉或者偏移都將導致按鍵的觸壓柱與電路板 上觸點的不對應，造成按鍵不靈活甚至失靈的問題。 【發明内容】 [0005]鑒於此，有必要提供一種可防止按鍵發生轉動或偉移的 096142395 表單编號A0101 1003449667-0 第4頁/共15頁 1362603 • 100年.12月05日修正替換頁 多向式按鍵。 [0006] 一種多向式按鍵，其包括鍵帽和複數觸壓柱，所述鍵帽 包括一按壓面，用於接受用戶的按壓操作，所述複數觸 壓柱位於所述鍵帽上按壓面的反面，用於觸壓電路板上 的複數觸點。所述多向式按鍵還包括複數彈性臂、固定 元件和保護柱，所述複數彈性臂由鍵帽的側邊向外延伸 形成，所述固定元件包括中空框體及設置於框體上的安 裝部，該複數彈性臂遠離鍵帽的一端連接於該框體的内 壁，該安裝部用於將該框體固定於使用該多向式按鍵的 設備上，所述保護柱為與所述觸壓柱位於鍵帽同一面的 凸起，所述多向式按鍵在未按壓狀態時，所述保護柱與 電路板分離，所述觸壓柱觸動電路板上的觸點時，所述 保護柱抵頂於電路板上。 [0007] —種多向式按鍵，其包括鍵帽和複數觸壓柱，所述鍵帽 包括一按壓面，用於接受用戶的按壓操作，所述複數觸 壓柱位於所述鍵帽上按壓面的反面，用於觸壓電路板上 的複數觸點。所述多向式按鍵還包括複數彈性臂、固定 元件和保護柱，所述複數彈性臂由鍵帽的側邊向外延伸 形成，所述固定元件連接於所述彈性臂遠離鍵帽的一端 ，用於固定所述彈性臂，所述保護柱為與所述觸壓柱位 於鍵帽同一面的凸起，所述保護柱相對於所述按壓面的 高度大於所述觸壓柱相對於所述按壓面的高度。 [0008] 上述多向式按鍵的鍵帽藉由固定元件和複數彈性臂固定 鍵帽，有效的避免了鍵帽在使用中發生旋轉或者偏移的 情況發生。該觸壓柱對應的保護柱與電路板的抵頂使得 096142395 表單編號A0101 第5頁/共15頁 1003449667-0 1362603 ίΟΟ年1’2月05日梭正替換頁 觸壓柱不能繼續向下移動，即不會施加給觸點更大的按 壓力，以免觸點受到過重的按壓而損壞，增強了按鍵的 操控性，也延長了按鍵的使用壽命。 【實施方式】 [0009] 請參閱圖1，其為一較佳實施方式的按鍵裝置10的分解視 圖，包括多向式按鍵100和電路板200，請同時參閱圖2， 其為多向式按鍵100的反面視圖。 [0010] 多向式按鍵100包括矩形的中空框體102、圓形鍵帽104 、四個彈性臂106、四個觸壓柱108、四個保護柱110。 所述電路板2 00上設置有四個與所述四個觸壓柱108對應 的觸點202和複數裝配孔204。 [0011] 所述鍵帽104的一面為按壓面142，用於接受用戶的按壓 操作。所述四個觸壓柱108為截面為十字形的凸柱，且均 勻的分佈在鍵帽104的另一面，用於觸壓所述電路板200 上的觸點202。所述鍵帽104的邊緣垂直延伸形成有帽沿 144。所述四個保護柱110為圓柱形凸起，其分別位於鍵 ’ 帽上四個觸壓柱108所在半徑的帽沿144上，本實施方式 中，所述保護柱110相對於按壓面142的高度大於所述觸 壓柱108相對於按壓面142的高度。 [0012] 所述四個彈性臂106呈條形肋狀，彈性臂106的一端由帽 沿144向外沿鍵帽104的半徑方向延伸形成，且四個彈性 臂106均勻分佈在鍵帽104上並與所述四個觸壓枉108交 錯分佈，即每個觸壓柱108所在的半徑與其相鄰的兩個彈 性臂106所在的半徑夾角相同。所述四個彈性臂106的另 一端均分別與矩形中空的框體102的内壁122相連。本實 096142395 表單编號Α0101 第6頁/共15頁 . 1003449667-0 1362603 施方式中’四個彈性臂l〇6與框體1〇2相連的一端為彎折 狀’使得彈性臂1〇6與框體102的内壁122垂直連接，且 四個彈性臂106兩兩連接在框體102的相對的兩個内壁 122 上。 [0013] 框體102上設有與所述電路板200上複數裝配孔204對應 的複數安裝部124 ’裝配孔204和安裝部124之間可藉由 螺絲、鉚釘、卡扣或者其他固定方式將多向式按鍵丨〇〇和 電路板200固定在一起。 [0014] 請參閱圖3和圖4 ’其為裝配好的按鍵裝置1〇的剖面視圖 ’其中’圖3為未按壓狀態下的按鍵結構示意圖，圖4為 按壓狀態下的結構示意圖。從圖3中可以看出，觸壓柱 108沒有觸壓到電路板200上的觸點2〇2，且保護柱11〇與 電路板200分離’彈性臂106處於非形變狀態。再參閱圖4 ’多向式按鍵100受到按壓後，彈性臂1〇6發生彈性形變 ，鍵帽104發生傾斜，與受力點對應的觸壓柱移動並 觸壓電路板200上對應的觸點202。同時，與該觸壓柱 108對應的保護柱110與電路板2〇〇抵頂，使得觸壓柱1〇8 不能繼續向下移動’即不會施加給觸點2〇2更大的按壓力 ，以免觸點202受到過重的按壓而損壞。保護柱11〇也可 以設置在其他位置，如觸壓柱108的左右或者靠近鍵帽 104中心的部分，總之，只要能在觸壓柱丨觸壓觸點 202時能抵頂電路板200即可。· [0015] 上述多向式按鍵1 0 0藉由框體1 〇 2與電路板2 〇 〇固定，並 藉由複數彈性臂106將鍵帽1〇4定位在框體1〇2内，有效 的避免了鍵帽104在使用中發生旋轉或者偏移的情況發生 096142395 表單編號A0101 第7頁/共15頁 1003449667-0 1362603 _:___ ioo年12月沾日梭正替換頁 ，增強了按鍵的操控性，延長了按鍵的使用壽命。其中 ，框體102只是作為一個將多向式按鍵100固定在電路板 200或者其他殼體的固定元件，其還可為框體以外的其他 形狀，只要能夠藉由固定彈性臂106即可。如：該固定元 件可為連接在彈性臂106上的螺孔或卡勾等，當該固定元 件為螺孔時，可藉由螺絲或者鉚釘穿過該螺孔來將多向 式按鍵100固定到電路板或其他殼體上；當該固定元件為 卡勾時，可藉由該卡勾與電路板或者其他殼體上的對應 部分的勾合或扣合將多向式按鍵100固定。四個彈性臂 106與四個觸壓柱108的交錯設置可使得觸壓柱108移動 時，彈性臂106的形變量較小，為彈性臂106的形變較小 負擔。另外，四個彈性臂106的彎折設計也有利於按鍵操 作時彈性臂106的形變。 [0016] 本技術領域的普通技術人員應當認識到，以上的實施方 式僅是用來說明本發明，而並非用作為對本發明的限定 ，只要在本發明的實質精神範圍之内，對以上實施例所 作的適當改變和變化都落在本發明要求保護的範圍之内 〇 【圖式簡單說明】 [0017] 圖1為一較佳實施方式的多向式按鍵正面視圖。 [0018] 圖2為圖1所示的多向式按鍵的反面視圖。 [0019] 圖3為圖1所示的多向式按鍵的剖面視圖。 [0020] 圖4為圖1所示的多向式按鍵在按壓狀態下的剖面視圖。 【主要元件符號說明】 096142395 表單编號A0101 第8頁/共15頁 1003449667-0 1362603 100年12月05日梭正替換頁 [0021] 按鍵裝置：10 · [0022] 内壁：122 [0023] 多向式按鍵：100 [0024] 安裝部：124 [0025] 框體：102 [0026] 按壓面：142 [0027] 鍵帽：104 [0028] 帽沿：144 1 [0029] 彈性臂：106 [0030] 電路板：200 [0031] 觸壓柱：108 [0032] 觸點：202 [0033] 保護柱：110 [0034] 裝配孔：204 096142395 表單編號A0101 第9頁/共15頁 1003449667-01362603 l'oo year Γ February 5th 5th replacement page 6. Description of the invention: [Technical field of the invention] [0001] The present invention relates to a key structure, and more particularly to a multi-directional key operation involving a plurality of directions. [Prior Art] [0002] With the development of desktop computers, notebook computers, network products, communication products, and various consumer electronic products, the functions of these electronic products continue to increase, and the number of corresponding buttons will follow. increase. On the other hand, all types of sturdy products are becoming more and more compact, and the key contact area needs to be reduced as much as possible. However, reducing the button area makes it easy for the user to press the plural key or press the wrong key at the same time, resulting in misoperation and inconvenience in use. [0003] In order to solve the above problem, the prior art has a single button to complete the design of the complex operation command. Such buttons are generally referred to as multi-function buttons or multi-directional buttons. [〇〇〇4] Multi-directional buttons have been widely used in home appliances such as remote controls, mobile phones, and DVD-enabled devices. They are mainly used to adjust the volume of electrical appliances, channel adjustment, and direction control. These buttons are composed of a large keycap and a touch column. However, during use, such buttons are easily rotated or offset because the multi-directional buttons are responsible for the pressing of the multiple contacts. The position requirement is much higher than a single button. 'The rotation or offset of the key cap will cause the contact bar of the button to not correspond to the contact on the circuit board, causing the button to be inflexible or even malfunctioning. SUMMARY OF THE INVENTION [0005] In view of this, it is necessary to provide a 096142395 form number A0101 1003449667-0 which can prevent the button from rotating or moving forward. Page 4 / 15 pages 1362603 • Correction replacement page for 100 years. December 05 Multi-directional button. [0006] A multi-directional button includes a key cap and a plurality of touch columns, the key cap includes a pressing surface for receiving a pressing operation of a user, and the plurality of pressing columns are located on the pressing surface of the key cap The opposite side is used to touch the complex contacts on the board. The multi-directional button further includes a plurality of elastic arms, a fixing member and a guard column, wherein the plurality of elastic arms are formed by outwardly extending from a side edge of the keycap, and the fixing component comprises a hollow frame and an installation on the frame The end of the plurality of elastic arms away from the keycap is connected to the inner wall of the frame, and the mounting portion is used for fixing the frame to the device using the multi-directional button, and the protection column is in contact with the a column is located on the same surface of the key cap. When the multi-directional button is in an unpressed state, the guard column is separated from the circuit board. When the touch column touches a contact on the circuit board, the guard column abuts Topped on the board. [0007] A multi-directional button comprising a keycap and a plurality of contact columns, the keycap comprising a pressing surface for receiving a pressing operation of a user, the plurality of touch columns being pressed on the keycap The opposite side of the face is used to touch the complex contacts on the board. The multi-directional button further includes a plurality of elastic arms, a fixing member and a guard column. The plurality of elastic arms are formed by outwardly extending from a side edge of the keycap, and the fixing member is coupled to an end of the elastic arm away from the keycap. For fixing the elastic arm, the guard column is a protrusion on the same side of the key cap as the touch column, and the height of the guard column relative to the pressing surface is greater than the touch column relative to the The height of the pressing surface. [0008] The keycap of the multi-directional button fixes the keycap by the fixing component and the plurality of elastic arms, thereby effectively preventing the rotation or offset of the keycap from being used in use. The contact column of the touch column corresponds to the top of the circuit board so that 096142395 Form No. A0101 Page 5 / Total 15 Page 1003449667-0 1362603 ΟΟ 1 1 'February 05 Shuttle Forward Replacement Page Touch Column Cannot Continue to Move Down That is, no greater pressing force is applied to the contacts, so that the contacts are not damaged by excessive weight pressing, which enhances the handling of the buttons and prolongs the service life of the buttons. [0009] Please refer to FIG. 1, which is an exploded view of a button device 10 according to a preferred embodiment, including a multi-directional button 100 and a circuit board 200. Please refer to FIG. 2 as a multi-directional button. The reverse side view of 100. [0010] The multi-directional button 100 includes a rectangular hollow frame 102, a circular keycap 104, four resilient arms 106, four contact columns 108, and four guard posts 110. The circuit board 200 is provided with four contacts 202 and a plurality of mounting holes 204 corresponding to the four contact columns 108. [0011] One side of the keycap 104 is a pressing surface 142 for accepting a pressing operation by a user. The four contact columns 108 are posts having a cross-shaped cross section and are evenly distributed on the other side of the keycap 104 for contacting the contacts 202 on the circuit board 200. The edge of the keycap 104 extends vertically to form a brim 144. The four guard posts 110 are cylindrical protrusions respectively located on the cap 144 of the radius of the four contact columns 108 on the key 'cap. In the embodiment, the guard column 110 is opposite to the pressing surface 142. The height is greater than the height of the touch column 108 relative to the pressing surface 142. [0012] The four elastic arms 106 are strip-shaped ribs, one end of the elastic arm 106 is formed by the brim 144 extending outward in the radial direction of the key cap 104, and the four elastic arms 106 are evenly distributed on the key cap 104. And the four contact pressures 108 are staggered, that is, the radius of each of the contact columns 108 is the same as the radius of the two adjacent elastic arms 106. The other ends of the four resilient arms 106 are respectively connected to the inner wall 122 of the rectangular hollow frame 102.本实096142395 Form No.Α0101 Page 6 of 15 Page 1003449667-0 1362603 In the application mode, the end of the four elastic arms l〇6 connected to the frame 1〇2 is bent to make the elastic arm 1〇6 The inner wall 122 of the frame 102 is vertically connected, and the four elastic arms 106 are connected to the opposite inner walls 122 of the frame 102. [0013] The frame body 102 is provided with a plurality of mounting portions 124 corresponding to the plurality of mounting holes 204 of the circuit board 200. The mounting holes 204 and the mounting portion 124 can be screwed, rivets, snaps or other fixing means. The multi-directional button 丨〇〇 is secured to the circuit board 200. 3 and FIG. 4' is a cross-sectional view of the assembled button device 1', wherein FIG. 3 is a schematic view of the structure of the button in an unpressed state, and FIG. 4 is a schematic structural view in a pressed state. As can be seen in Figure 3, the contact bar 108 does not touch the contacts 2〇2 on the circuit board 200, and the guard posts 11〇 are separated from the circuit board 200. The resilient arms 106 are in a non-deformed state. Referring to FIG. 4, after the multi-directional button 100 is pressed, the elastic arm 1〇6 is elastically deformed, the key cap 104 is tilted, and the contact column corresponding to the force point moves and touches the corresponding touch on the circuit board 200. Point 202. At the same time, the guard column 110 corresponding to the touch column 108 abuts against the circuit board 2, so that the touch column 1〇8 cannot continue to move downwards, that is, the pressing force of the contact 2〇2 is not applied. In order to prevent the contact 202 from being damaged by excessive weight pressing. The guard column 11A can also be disposed at other positions, such as the left and right of the touch column 108 or the portion near the center of the keycap 104. In short, as long as the touch column can contact the circuit board 200 when the contact 202 is touched. . [0015] The multi-directional button 100 is fixed to the circuit board 2 by the frame 1 〇 2, and the key cap 1 〇 4 is positioned in the frame 1 〇 2 by the plurality of elastic arms 106. Avoiding the occurrence of rotation or offset of the keycap 104 in use 096142395 Form No. A0101 Page 7 / Total 15 Page 1003449667-0 1362603 _:___ ioo year in December, the Japanese page is replacing the page, enhancing the button Controllability, extending the life of the button. The frame 102 is merely a fixing member for fixing the multi-directional button 100 to the circuit board 200 or other housing, and may be other shapes than the frame as long as the elastic arm 106 can be fixed. For example, the fixing component can be a screw hole or a hook attached to the elastic arm 106. When the fixing component is a screw hole, the multi-directional button 100 can be fixed to the screw hole through a screw or a rivet. On the circuit board or other housing; when the fixing component is a hook, the multi-directional button 100 can be fixed by hooking or snapping the hook to a corresponding portion on the circuit board or other housing. The staggered arrangement of the four resilient arms 106 and the four contact columns 108 allows the resilient arms 106 to be less deformed when the contact pins 108 are moved, which is a less burdensome deformation of the resilient arms 106. In addition, the flexing design of the four resilient arms 106 also facilitates the deformation of the resilient arms 106 during key operation. [0016] Those skilled in the art should understand that the above embodiments are only for illustrating the present invention, and are not intended to limit the present invention, as long as it is within the spirit of the present invention, the above embodiments. Appropriate changes and variations are within the scope of the claimed invention. [FIG. 1] FIG. 1 is a front elevational view of a multi-directional button of a preferred embodiment. 2 is a reverse side view of the multidirectional button shown in FIG. 1. 3 is a cross-sectional view of the multidirectional button of FIG. 1. 4 is a cross-sectional view of the multidirectional button of FIG. 1 in a pressed state. [0020] FIG. [Main component symbol description] 096142395 Form No. A0101 Page 8 of 15 1003449667-0 1362603 December 5, 2005 Shuttle replacement page [0021] Button device: 10 · [0022] Inner wall: 122 [0023] Directional button: 100 [0024] Mounting: 124 [0025] Frame: 102 [0026] Pressing surface: 142 [0027] Key cap: 104 [0028] Brim: 144 1 [0029] Elastic arm: 106 [0030] ] Board: 200 [0031] Contact column: 108 [0032] Contact: 202 [0033] Guard column: 110 [0034] Mounting hole: 204 096142395 Form number A0101 Page 9 of 15 1003449667-0