1353615 |100年09月1^孩正^^| 六、發明說明： 【發明所屬之技術領域】 [〇〇〇1]本發明涉及一種按鍵模組，特別係指一種用於電子裝置 内以實現自動復位功能之按鍵模組》 【先前技術】 _2]豸著半導體技術之不斷發展’傳統之勝片式相機已逐漸 被數位式相機（習稱為數碼相機）所取代。相比於傳統 相機，數碼相機體積小、重量輕，便於攜帶；且，由於 數碼相機係藉由數位方式來存儲圖像，無需額外購買膠 片’避免了用戶之二次投資。 為方便用戶進订調焦’目前之大部分數碼相機均配備相 應之調焦按鍵^㈣戶需要改變鏡頭之焦距時，只需撥 動按鍵使其偏離原位置而抵麼至相機内之感應裝置， 即可驅動鏡頭改變其焦距。當用戶鬆開按鍵之後其將 自動歸復原位置並域輕置關，使鏡頭保持在變焦 ,狀I、基於成本考慮，該等按鍵一般均採用彈脊來 實現其自動復位功能β [0004] 相機時’首要考慮之問題係相機之厚度，若相機較 薄其内部之容置空間將極其有限，如何儘量縮減相機 内凡件之厚度變得至關重要，該種現象在卡片式相機内 尤為突出。惟，如採用彈簧來實現按鍵之自動復位功能 ，為給其他元件騰出空間，其尺寸必然不能過大。當將 彈簧安裝至相機㈣，這種較小之尺寸會導致其難以操 作給相機之組裝帶來不便β此外，由於彈簧之尺寸過 ]產生之彈力有限。當按鍵經過長時間之反復使用之 096151273 表單坞號Α0101 第4頁/共18頁 1003339942-0 100年09月15日修正替换頁 1353615 後，由於外部環境之侵蝕作用，其與相機殼體間之摩擦 力會越來越大。在該種情況之下，彈簧之彈力將可能會 小於按鍵與相機殼體間之摩擦力，導致按鍵無法克服摩 擦力而自動復位，使相機之手動調焦功能失靈。 【發明内容】 [0005] 有鑒於此，實有必要提供一安裝較便捷且可有效防止按 鍵失靈之按鍵模組。 [0006] 一種按鍵模組，用於電子裝置内以實現自動復位功能， 其包括一殼體、一樞設於殼體内之按鍵及一安裝在殼體 上之彈片，該按鍵可在殼體内樞轉至抵壓彈片，此時彈 片發生形變而推動按鍵使其復位。 [0007] 與習知技術相比，本發明之按鍵模組採用彈月來驅動按 鍵復位，相對於傳統之彈簧而言，彈片只需一較小之厚 度即可獲得較大之彈力，從而防止按鍵因無法克服摩擦 力而不能復位之情況出現。此外，由於彈片較薄，其僅 佔據電子裝置厚度之很小一部分，可為電子裝置内之其 他電子元件提供充裕之容置空間。 【實施方式】 [0008] 本發明旨在提供一種用於數碼相機（圖未示）内藉由自 動復位功能調節其鏡頭焦距之按鍵模組。請參閱圖1和圖 2，該按鍵模組包括一殼體10、一樞設於殼體10内之按鍵 20及一固定至殼體10上之彈片30。 [0009] 所述殼體10為數碼相機之後蓋，圖2僅示出了其部分區域 。該殼體10包括一矩形之蓋體12，其中部開設一大致呈 096151273 表單編號A0101 第5頁/共18頁 1003339942-0 1353615 100年09月15日菝正替換頁 矩形之開口 120，供按鍵20嵌入。該蓋體12之中部水平向 前凸伸出一圍繞開口 120之環壁14，其用於環繞按鍵20而 對其定位。蓋體12於環壁14之二對角處向前凸伸出二定 位柱122，每一定位柱122之長度大於環壁14之厚度，其 頂部延伸超出環壁14，以***彈片30内對其定位。二凸 柱140自環壁14相對兩内側壁垂直相向延伸而出。該二凸 柱140相互對齊，且每一凸柱140之上下兩端均被削去而 形成平行之頂面及底面，以方便嵌入按鍵20内而將按鍵 20樞設於殼體10内。該環壁14週緣之相對兩側沿豎直方 向反向形成二固定部142，該二固定部142相互錯開以分 別對彈片30之不同區域固定。每一固定部142均為一切去 部分之圓柱體，其中部開設一圓形之螺孔144，供螺絲40 插設。環壁14在靠近二固定部142之位置處分別沿豎直方 向反向凸伸出二凸部146，該二凸部146亦相互錯開且每 一凸部146均與一固定部142正對，換言之，二凸部146 與二固定部142交替正對。環壁14之内側於每一凸部146 之位置處向外凹陷出一凹部148，其中每一凹部148之深 度小於環壁14之厚度，且貫穿環壁14之前端面，以容置 彈片30之相應結構。 [0010] 請一併參閱圖3，所述按鍵20嵌入於殼體10之開口 120内 ，其包括一樞接至殼體10之凸柱140之樞轉部24、一形成 於該樞轉部24後部之操作部22 (如圖1)及二垂直形成於 柩轉部24上之柱體26。該樞轉部24之縱向截面積自前向 後逐漸減小，其容置於殼體10之開口 120内而使二柱體26 向前延伸超出環壁14。一圓形之穿孔240橫向貫穿樞轉部 096151273 表單編號A0101 第6頁/共18頁 1003339942-0 1353615 4 100年09月15日核正替換頁 24，該穿孔240之内徑與殼體10凸柱140之直徑大致相等 ，以將凸柱140收容於其兩端，使框轉部24可繞凸柱140 在豎直平面内上下旋轉（如圖3)。該枢轉部24於靠近穿 孔240兩端之上下兩側區域分別向前凸伸出四扣壓部242 。每一扣壓部242大致呈三角形，其具有一部分向内延伸 超出穿孔240之内壁面，以在凸柱140收容於穿孔240内 之後對其起一卡掣作用，防止其脫落。一肋條244形成於 穿孔240之中部以對按鍵20進行加固。該二柱體26分別形 成於穿孔240之上下兩侧，二者相互錯開並與殼體10之二 凹部148相對應。二柱體26可隨樞轉部24之樞轉而旋轉至 抵壓相機内之感應裝置（圖未示），使其發出信號，驅 動相機之鏡頭改變焦距。 [0011] 請參閱圖2-5，所述彈片30固定於殼體10之前部，其由一 彈性之金屬片一體形成。該彈片30包括一豎直之矩形片 體32，其二角處分別開設二圓孔320，供殼體10之定位柱 122插設以將彈片30定位於殼體10上（如圖3) »該片體 32之上下兩側分別向外反向延伸出大小不等且與殼體10 之二固定部142相互對應之二定位片34。每一定位片34之 中部開設一與固定部142之螺孔144對齊之圓孔340，供 螺絲40穿設而將彈片30固定至殼體10上。該彈片32之中 部區域開設一輪廓與殼體10之環壁14之内圍一致之開孔 322。二抵壓片36自該開孔322之内緣傾斜向後延伸而出 ，其中一抵壓片3 6傾斜向上且靠向按鍵20，另一抵壓片 36傾斜向下且靠向按鍵20。每一抵壓片36之一端與片體 32連接且與一定位片34相對應，另一端則與片體32隔開 096151273 表單編號A0101 第7頁/共18頁 1003339942-0 1353615 100年09月IS B後正替換頁 而處於自由狀態。該二抵壓片36可被按鍵20之樞轉部24 之前端面所抵壓而豎直收容於開孔322内（如圖5)，此 時其對按鍵20之樞轉部24向後施力，使其具有朝向原位 置回轉之趨勢；或被鬆開而處於略微傾斜向後之自由位 置（如圖4)，此時其被收容於殼體1〇環壁14之凹部148 内。每一抵壓片36均開設一通口 360，其面積遠大於按鍵 20之柱體26之截面積，由此，當按鍵2〇之柱體26穿入抵 壓片36之通口 360内之後（如圖3)，其可不受限制地在 一較大之範圍内活動》 [0012] 使用該按鍵模組時，如若朝上扳動按鍵20之操作部22， 其樞轉部24及柱體26將***作部22所帶動而繞殼體1〇之 凸柱140沿逆時針旋轉。當操作部22向上旋轉至抵靠於樞 轉部24之後端面時，枢轉部24將與彈片30之抵壓片36接 觸而對其施力’使抵壓片36向前發生形變（如圖5)，此 時按鍵20之凸柱26將抵壓於相機内之感應裝置，使其輸 出信號’驅動相機之鏡頭變焦》鬆開按鍵20之操作部22 之後’由於抵壓片36之彈性作用，其將向後恢復形變（ 如圖4)，進而推動按鍵2〇之樞轉部24沿順時針旋轉，直 至按鍵20回復至初始位置，此時按鍵20之凸柱26將與感 應裝置隔開而使其停止輸出信號，使相機之鏡頭保持在 變焦後之狀態。同理，如向下扳動按鍵20之操作部22， 其過程將與上述過程類似，在此不再贅述。 本發明採用彈片30取代習知技術中之彈簧，其在厚度較 小之情況下仍可獲得—較大之彈力，從而防止因按鍵2〇 不能克服與殼體10間之摩擦力而無法復位之情況出現。 096151273 表單編號Α0101 第8頁/共18頁 1003339942-0 [0013] 1353615 [0014] [0015] [0016] [0017] [0018] [0019] [0020] [0021] [0022] [0023] 1100年09月15日修正替換 此外，由於彈片3 0較薄，其僅佔據相機厚度之很小一部 分，可為相機内之其他元件騰出充分之空間。 可以理解地，本發明之按鍵模組還可用於其他存在類似 需求之電子裝置中，如攝像機、電腦 '數位音樂播放器 、可檇式影像播放裝置等等。 综上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟’以上所述者僅為本發明之較佳實施方式，本 發明之範圍並不以上述實施方式為限，舉凡熟悉本案技 藝之人士援依本發明之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明之按鍵模組之立體組裝圖。 圖2係圖1之立體分解圖。 圖3係圖1之後視圖。 圖4係圖3中之按鍵模組沿其剖線iv-IV之剖面圖，此時按 鍵模組之按鍵處於自由狀態。 圖5係與圖4類似之視圖，此時按鍵模組之按鍵處於扳動 狀態。 【主要元件符號說明】 殼體：1〇 蓋體：12 開口 ： 120 096151273 表單編號A0101 第9頁/共18頁 1003339942-0 1353615 {^ 100年09月IS日修正替換頁 [0024] 定位柱 ：122 [0025] 環壁： 14 [0026] 凸柱： 140 [0027] 固定部 ：142 [0028] 螺孔： 144 [0029] 凸部： 146 [0030] 凹部： 148 [0031] 按鍵： 20 [0032] 操作部 ：22 [0033] 樞轉部 ：24 [0034] 穿孔： 240 [0035] 扣壓部 ：242 [0036] 肋條： 244 [0037] 柱體： 26 [0038] 彈片： 30 [0039] 片體： 32 [0040] 圓孔： 320 [0041] 開孔： 322 [0042] 定位片 ：34 096151273 表單編號A0101 第10頁/共18頁 1003339942-0 100年09月15日核正替换頁 1353615 .1353615 |100年09月月1^孩正^^| VI. Description of the invention: [Technical field of invention] [〇〇〇1] The present invention relates to a button module, particularly to an electronic device for realizing Button Module for Automatic Reset Function [Prior Art] _2] With the continuous development of semiconductor technology, the traditional film camera has gradually been replaced by a digital camera (known as a digital camera). Compared to conventional cameras, digital cameras are small, lightweight, and easy to carry. Moreover, because digital cameras store images by digital means, there is no need to purchase additional films, which avoids the user's secondary investment. In order to facilitate the user to make a focus adjustment, most of the current digital cameras are equipped with corresponding focusing buttons. ^ (4) When the household needs to change the focal length of the lens, simply push the button to deviate from the original position and reach the sensing device in the camera. , you can drive the lens to change its focal length. When the user releases the button, it will automatically return to the position and lightly set the field to keep the lens in zoom. I, based on cost considerations, these buttons generally use the ridge to achieve their automatic reset function. [0004] Camera The first consideration is the thickness of the camera. If the camera is thin, the internal space of the camera will be extremely limited. How to minimize the thickness of the camera becomes critical. This phenomenon is especially prominent in the card camera. . However, if a spring is used to implement the automatic reset function of the button, the size of the button must not be too large in order to make room for other components. When the spring is mounted to the camera (4), this small size can make it difficult to operate and cause inconvenience to the assembly of the camera. In addition, the spring force generated by the size of the spring is limited. After the button has been used repeatedly for a long time, the 096151273 form dock number Α0101 4th page/18 pages 1003339942-0 100th September 15th revision replacement page 1353615, due to the erosion of the external environment, between the camera housing The friction will increase. In this case, the spring force of the spring may be less than the friction between the button and the camera housing, causing the button to fail to overcome the frictional force and automatically reset, causing the camera's manual focus function to fail. SUMMARY OF THE INVENTION [0005] In view of the above, it is necessary to provide a button module that is relatively easy to install and that can effectively prevent a button from malfunctioning. [0006] A button module for use in an electronic device to implement an automatic reset function includes a housing, a button pivoted in the housing, and a spring mounted on the housing, the button being slidable in the housing The inner pivots to the pressing spring, and the spring is deformed to push the button to reset. Compared with the prior art, the button module of the present invention uses the bullet month to drive the button to be reset. Compared with the conventional spring, the spring piece can obtain a large elastic force only by a small thickness, thereby preventing The button cannot be reset because it cannot overcome the friction. In addition, since the shrapnel is thin, it occupies only a small portion of the thickness of the electronic device, providing ample housing space for other electronic components in the electronic device. [Embodiment] The present invention is directed to a button module for adjusting a focal length of a lens thereof by an automatic reset function in a digital camera (not shown). Referring to FIG. 1 and FIG. 2, the button module includes a housing 10, a button 20 pivoted in the housing 10, and a spring 30 fixed to the housing 10. [0009] The housing 10 is a digital camera back cover, and FIG. 2 shows only a partial area thereof. The housing 10 includes a rectangular cover 12, the middle portion of which is substantially 096151273. Form number A0101 5th page/18 pages 1003339942-0 1353615 100th September 15th, the replacement of the rectangular opening 120 for the button 20 embedded. The middle portion of the cover 12 projects horizontally forwardly from a ring wall 14 surrounding the opening 120 for positioning it around the button 20. The cover body 12 protrudes forwardly from the two opposite corners of the ring wall 14 to the two positioning posts 122. Each of the positioning posts 122 has a length greater than the thickness of the ring wall 14 and a top portion thereof extends beyond the ring wall 14 to be inserted into the elastic piece 30. Its positioning. The two posts 140 extend perpendicularly from the annular wall 14 opposite the inner side walls. The two protrusions 140 are aligned with each other, and the upper and lower ends of each of the protrusions 140 are cut away to form parallel top and bottom surfaces to facilitate insertion into the button 20 to pivot the button 20 in the housing 10. Two opposite portions 142 are formed on opposite sides of the circumference of the annular wall 14 in a vertical direction, and the two fixing portions 142 are offset from each other to fix different regions of the elastic piece 30, respectively. Each of the fixing portions 142 is a cylindrical portion having a partial portion, and a circular screw hole 144 is formed in the middle portion for the screw 40 to be inserted. The two adjacent convex portions 146 are respectively protruded in the vertical direction at a position close to the two fixing portions 142. The two convex portions 146 are also offset from each other and each convex portion 146 is opposite to the fixing portion 142. In other words, the two convex portions 146 and the two fixing portions 142 alternately face each other. The inner side of the annular wall 14 is recessed outwardly at a position of each convex portion 146, wherein each concave portion 148 has a depth smaller than the thickness of the annular wall 14 and penetrates the front end surface of the annular wall 14 to accommodate the elastic piece 30. Corresponding structure. Referring to FIG. 3, the button 20 is embedded in the opening 120 of the housing 10, and includes a pivoting portion 24 pivotally connected to the boss 140 of the housing 10, and a pivot portion 24 is formed at the pivoting portion. The operation portion 22 (see FIG. 1) at the rear of the 24 and the column 26 formed perpendicularly to the slewing portion 24 are formed. The longitudinal cross-sectional area of the pivoting portion 24 tapers from front to back and is received within the opening 120 of the housing 10 such that the two cylinders 26 extend forward beyond the annular wall 14. A circular perforation 240 extends transversely through the pivoting portion 096151273 Form No. A0101 Page 6 / Total 18 pages 1003339942-0 1353615 4 On September 15, 100, the replacement of the page 24, the inner diameter of the perforation 240 and the housing 10 convex The columns 140 are substantially equal in diameter to receive the studs 140 at their ends such that the frame turn 24 can be rotated up and down about the studs 140 in a vertical plane (Fig. 3). The pivoting portion 24 protrudes forwardly from the lower side portions of the two ends of the through hole 240, respectively. Each of the crimping portions 242 is substantially triangular in shape and has a portion extending inwardly beyond the inner wall surface of the perforation 240 to prevent the tabs 140 from being detached after being received in the perforations 240. A rib 244 is formed in the middle of the perforation 240 to reinforce the button 20. The two cylinders 26 are respectively formed on the upper and lower sides of the perforations 240, which are offset from each other and correspond to the two recesses 148 of the casing 10. The two cylinders 26 are pivotable with the pivoting portion 24 to rotate against the sensing means (not shown) in the camera to cause a signal to drive the lens of the camera to change the focal length. Referring to FIGS. 2-5, the elastic piece 30 is fixed to the front portion of the casing 10, and is integrally formed of a resilient metal piece. The elastic piece 30 includes a vertical rectangular piece 32, and two circular holes 320 are defined at two corners thereof, and the positioning post 122 of the housing 10 is inserted to position the elastic piece 30 on the housing 10 (Fig. 3) » The upper and lower sides of the sheet body 32 respectively extend outwardly oppositely to the two positioning pieces 34 of different sizes and corresponding to the two fixing portions 142 of the housing 10. A circular hole 340 is defined in the middle of each positioning piece 34 in alignment with the screw hole 144 of the fixing portion 142 for the screw 40 to be fastened to the housing 10. An opening 322 is defined in the middle portion of the elastic piece 32 to conform to the inner circumference of the annular wall 14 of the housing 10. The two pressing pieces 36 extend obliquely rearward from the inner edge of the opening 322. One of the pressing pieces 36 is inclined upward and leans toward the button 20, and the other pressing piece 36 is inclined downward and leans toward the button 20. One end of each pressing piece 36 is connected to the piece 32 and corresponds to a positioning piece 34, and the other end is separated from the piece 32. 096151273 Form No. A0101 Page 7 / Total 18 Page 1003339942-0 1353615 100 September After IS B is replacing the page and is in a free state. The two pressing pieces 36 can be vertically received in the opening 322 by pressing the front end surface of the pivoting portion 24 of the button 20 (as shown in FIG. 5 ), and at this time, the pivoting portion 24 of the button 20 is biased backward. It has a tendency to rotate toward the home position; or is released to be in a slightly inclined rearward free position (Fig. 4), at which time it is housed in the recess 148 of the casing 1 ring wall 14. Each of the pressing pieces 36 defines a through opening 360 which is much larger than the sectional area of the cylinder 26 of the button 20, whereby after the column 26 of the button 2 is inserted into the opening 360 of the pressing piece 36 ( As shown in FIG. 3), it can be operated in a wide range without limitation. [0012] When the button module is used, if the operation portion 22 of the button 20 is pulled upward, the pivot portion 24 and the column 26 thereof The projections 140 that are driven by the operating portion 22 around the housing 1 are rotated counterclockwise. When the operating portion 22 is rotated upward to abut against the rear end surface of the pivoting portion 24, the pivoting portion 24 will contact the pressing piece 36 of the elastic piece 30 to apply force thereto to deform the pressing piece 36 forward (as shown in the figure). 5) At this time, the protrusion 26 of the button 20 will be pressed against the sensing device in the camera to make the output signal 'drive the lens zoom of the camera'. After the operation portion 22 of the button 20 is released, 'because of the elastic effect of the pressing piece 36 It will return to the deformation (Fig. 4), and then push the pivoting portion 24 of the button 2 to rotate clockwise until the button 20 returns to the initial position, at which time the tab 26 of the button 20 will be separated from the sensing device. Let it stop outputting the signal so that the camera's lens remains in the zoomed state. For the same reason, if the operation portion 22 of the button 20 is pulled downward, the process will be similar to the above process, and details are not described herein again. The invention adopts the elastic piece 30 to replace the spring in the prior art, which can obtain a large elastic force in the case of a small thickness, thereby preventing the button 2 from being unable to overcome the frictional force with the casing 10 and being unable to be reset. The situation arises. 096151273 Form No. 101 0101 Page 8 / Total 18 Page 1003339942-0 [0013] 1353615 [0014] [0016] [0019] [0020] [0023] [0023] [0023] [10023] 1100 Correction Replacement on September 15 In addition, since the shrapnel 30 is thin, it occupies only a small portion of the camera thickness, making room for other components in the camera. It can be understood that the button module of the present invention can also be used in other electronic devices having similar requirements, such as a video camera, a computer 'digital music player, a portable video player, and the like. In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective assembled view of a key module of the present invention. 2 is an exploded perspective view of FIG. 1. Figure 3 is a rear view of Figure 1. Figure 4 is a cross-sectional view of the button module of Figure 3 along its line iv-IV, at which point the button of the button module is in a free state. Figure 5 is a view similar to Figure 4, in which the button of the button module is in a toggle state. [Main component symbol description] Housing: 1 cover: 12 Opening: 120 096151273 Form No. A0101 Page 9 / Total 18 pages 1003339942-0 1353615 {^ 100 years September IS correction replacement page [0024] Positioning post: 122 [0025] Ring wall: 14 [0026] Post: 140 [0027] Fixing part: 142 [0028] Screw hole: 144 [0029] Projection: 146 [0030] Recess: 148 [0031] Button: 20 [0032 Operating part: 22 [0033] Pivoting part: 24 [0034] Perforation: 240 [0035] Crimping part: 242 [0036] Rib: 244 [0037] Cylinder: 26 [0038] Shrapnel: 30 [0039] : 32 [0040] Round hole: 320 [0041] Opening: 322 [0042] Positioning piece: 34 096151273 Form number A0101 Page 10 / Total 18 pages 1003339942-0 100 September 15th Nuclear replacement page 1353615 .
[0043] 圓孔：340 [0044] 抵壓片：36 [0045] 通口 ： 360 [0046] 螺絲：40 1003339942-0 096151273 表單編號A0101 第11頁/共18頁[0043] Round hole: 340 [0044] Pressing piece: 36 [0045] Opening: 360 [0046] Screw: 40 1003339942-0 096151273 Form number A0101 Page 11 of 18