201137427 六、發明說明： 【發明所屬之技術領域】 種設置於：ϊΐ關於一種變焦鏡筒機構’特別係有關於-相機上的伸縮式變焦鏡筒機構。 【先前技術】 缩戈變隹第1圖’習知數位相機100上所採用的伸 細式k焦鏡碩主要係由複 其中鏡筒η〜14係以 =12、13、14所構成’201137427 VI. Description of the Invention: [Technical Field of the Invention] The invention relates to: ϊΐ About a zoom lens barrel mechanism ‘Specially related to the telescopic zoom lens barrel mechanism on the camera. [Prior Art] Fig. 1 is a schematic view of a conventional k-lens mirror used in a digital camera 100. The main body of the lens is composed of =12, 13, and 14
機身10,當欲拍握in、，的式連接於數位相機100的 田人拍攝不同距離的I 100的焦距時，前述鏡筒n〜14j 4要調整數位相機 旋機構，使其可沿德*透過其内部的凸輪或螺 箭頭方向所示）。 方向伸縮移動(如第1圖中 傳統㈣、鏡頭往往容易 壞’其主要原因乃在於各個鏡筒間的連貝 有鑑於此，如何改善習知伸縮錢隹 j強度不足。 A 焦鏡頭的機構設計並強 化各個鏡趙間的連接機構始成為一重要之課題。 【發明内容】 本發明之一實施例提供-種變焦鏡筒機構，其主要包 括一第一鏡筒以及一第二鏡筒，前述第一鏡筒具有至少一 凸塊以及H其中滑塊具有—四邊形結構。前述第二 鏡筒套設於第一鏡筒外侧，並且具有相連接之第一、第二 以及第三軌道。當第一鏡筒相對第二鏡筒沿-中心轴方向 201137427 旋轉時，凸塊與滑塊分別於第一、 ;_=:::rr 方丄== 弟 第一軌道4動進入第三軌道時，第一— 士 :轴旋轉且相對於該第二鏡筒固定於中 於—實_巾’錢滑塊具有兩解面，位於滑塊的 :第則執機構受—外力撞擊時，前述平面分別 筒道兩侧的内壁接觸’以防正第—鏡筒脫離第二鏡 、首且Γ!施例中，前述滑塊具有一楔形截面，且第二軌 道具有一斜面’楔賴面與斜面她一距離。 於一實施例中 頂面為平行四邊形 於一實施例中 於一實施例中 互平行。 於一實施例中 的機身上。 、於-實施例中，前述第一鏡筒更具有複數個凸塊以及 複數個滑塊’且第二鏡筒的内側表面更具有複數個第一、 第二以及第三軌道，對應於前述凸m滑塊。 於一實施例中，前述凸塊以及滑塊對稱於甲心軸。 為使本發明之上述目的、特徵、和優點能更明顯易懂， 下文特舉較佳實施例並配合所附圖式做詳細說明。 於一實施例中，前述凸塊具有—錐形結構。 前述四邊形結構具有一頂面，且前述 月述第二、第三軌道之間形成一鈍角。 前述第一、第二軌道為直線軌道且相 别述第一鏡筒固定於一相機或攝影機 201137427 【實施方式】 請參閱第2圖，本發明一實施例之變焦鏡筒機構可庫 用於一相機或攝影機上，其主要包括中空之第-鏡筒21；； 及第二鏡筒22，前述第二鏡筒22例如可固定在相機或攝 影機的機身上，第—鏡筒21則是以可伸縮的方式設置在第 了鏡筒22内側’當欲拍攝不同距離的景物時，可使第一鏡 ^轴C2方疋轉’進而使第一鏡筒21相對第二鏡筒 +者中心軸C2方向移動，藉以達到調變焦距之目的。 Ϊ特第別說:是，在第—鏡筒21繞中心軸C2旋轉的過程 沿著第二it21外側表面上的凸塊211與滑塊212會分別 ς —兄同22内侧表面的第一、第二執道Μ、”滑 藉此可迫使第一鏡筒21相對 方向移動，其中第一、贫 鏡请“述中心轴C2 互平行。八 、第—執道R1、R2的位置相鄰且相 縮狀二寺併二二’當前述變焦鏡筒機構處於-收 圖所示);相反地G 一^ 度時，第-鏡筒二相；= 著心⑽ 移動，藉以使第_r符21几鏡4 22沿中心轴C2方向 箭頭方向所示卜 於第二鏡筒22(如第4圖中 接著請參閱第5A、5R 1 外侧表面上形成有：本實施例中的第一鏡筒h 槐212,前诚稱於中心軸C2之凸塊211以及滑 塊211具有—錐形結構，滑塊212則與凸 201137427 塊211相鄰並且具有一四邊形結構，其中該四邊形結構之 頂面呈平行四邊形（如第5B圖所示）。再請參閱第6圖，當 變焦鏡筒機構處於收縮狀態時，第一鏡筒21上的凸塊211 以及滑塊212係位於第一、第二執道Rl、R2下方的凹槽 R0内；其中，當第一鏡筒21相對第二鏡筒22繞中心軸 C2旋轉時，凸塊211與滑塊212會分別進入呈直線結構的 第一、第二軌道Rl、R2内，並且沿著第一、第二軌道R1、 R2滑行(如第7A圖中箭頭方向所示），此時第一鏡筒21上 的凸塊211會受到第一軌道R1的引導推升，使得第一鏡筒 21可逐漸凸出於第二鏡筒22，藉以達到調變焦距之目的。 如第7B圖所示，當前述凸塊211進入第一執道R1内 時，凸塊211兩側的斜面會與第一軌道R1的表面密合，藉 此可提升運動軌跡的準確性與穩定性，且由於本實施例中 的凸塊211具有錐形結構，故可適用於各種形式的軌道(例 如直線或彎曲軌道），並有利於提升機構設計上的彈性。再 請參閱第7C圖，前述滑塊具有一楔形截面，當滑塊212 進入第二軌道R2内時，滑塊212並不會與第二執道R2完 全密合，其中楔形截面與第二軌道R2兩側的斜面R21之 間分別相隔一距離d，藉此可預留空間以避免滑塊212在 彎曲軌道内運動時產生干涉而導致機構損壞。 再請參閱第8圖，隨著第一鏡筒21持續繞中心軸C2 旋轉·，前述凸塊211與滑塊212會分別由第一、第二軌道 Rl、R2進入第三軌道R3内，惟此時第一鏡筒21僅能單 純地繞著中心軸C2旋轉而無法沿中心軸C2方向移動；換 句話說，第一鏡筒.21僅繞著中心軸C2旋轉且相對第二鏡 201137427 筒22固定於中心軸C2之一預設位置。需特別說明的是， 前述第二、第三軌道R2、R3之間形成有一鈍角0，當凸 塊211與滑塊212進入第三軌道R3内時，第一鏡筒21的 位置已凸出於第二鏡筒22(如第4圖所示），此時若變焦鏡 筒機構遭受到轴向外力撞擊，則可透過滑塊212上、下兩 側相互平行的平面SI、S2分別與第三軌道R3上、下兩側 的内壁R31、R32相互接觸抵靠，藉以防止凸塊211與滑 塊212被撞出第三執道R3而導致第一、第二鏡筒21、22 分離。 有鑑於錐狀結構之凸塊211與第三執道R3間的接觸面 積較小而難以提供較佳的結構強度，本發明另外在第一鏡 筒21外側表面增設一具有四邊形結構之滑塊212，如此一 來當凸塊211與滑塊212進入第三軌道R3内時，可透過滑 塊212兩側的平面SI、S2與第三執道R3產生較大的接觸 面積，藉以有效抵抗外力撞擊，進而能防止凸塊211和滑 塊212脫離第三執道R3。 綜上所述，本發明主要係提供一種變焦鏡筒機構，包 括中空之第一鏡筒以及第二鏡筒，前述第一鏡筒上設有至 少一組凸塊和滑塊，前述第二鏡筒上則設有複數個相對應 之執道，其中藉由凸塊於軌道内運動可使第一、第二鏡筒 之間達到伸縮變焦之功能。特別地是，本發明藉由四邊形 結構的滑塊與前述執道之間相互抵接，可有效避免變焦鏡 筒機構因遭受外力撞擊或不甚摔落所造成的損壞，進而能 大幅提升使用上的安全性。 雖然本發明以前述之實施例揭露如上，然其並非用以 201137427 限定本發明。本發明所屬技術領域中具有通常知識者，在 不脫離本發明之精神和範圍内，當可做些許之更動與潤 飾。因此本發明之保護範圍當視後附之申請專利範圍所界 定者為準。 201137427 【圖式簡單說明】 第1圖表示習知數位相機戒攝影機上設有伸縮式變焦 鏡頭之示意圓； 第2圖表示本發明一實施例之變焦鏡筒機構示意圖； 以及 圖表示本發明一實 第 狀態之示意圖The body 10, when the person who wants to hold the in, and is connected to the digital camera 100 to shoot the focal length of I 100 at different distances, the lens barrels n~14j 4 need to adjust the digital camera rotation mechanism to make it possible to *Through the direction of its internal cam or screw arrow). The direction of telescopic movement (such as the traditional (four) in Figure 1 and the lens tends to be bad' is mainly due to the fact that there is a lack of strength between the various barrels. How to improve the strength of the conventional telescopic lens. It is an important issue to strengthen the connection mechanism between the mirrors. One aspect of the present invention provides a zoom lens barrel mechanism, which mainly includes a first lens barrel and a second lens barrel. The first barrel has at least one bump and H wherein the slider has a quadrilateral structure. The second barrel is sleeved outside the first barrel and has first, second and third tracks connected thereto. When a lens barrel rotates relative to the second lens barrel along the center axis direction 201137427, the bump and the slider respectively move into the third track at the first, ;_=:::rr square== First - the axis: the axis rotates and is fixed to the second lens barrel in the middle - the solid - towel 'money slider has two solutions, and the slider is located: when the third actuator is subjected to an external force, the plane is respectively The inner wall of both sides of the bobbin is in contact with 'in case The lens barrel is separated from the second mirror, the first and the second embodiment. In the embodiment, the slider has a wedge-shaped cross section, and the second rail has a sloped surface. The wedge surface is at a distance from the slope. In one embodiment, the top surface is a parallelogram. In an embodiment, in an embodiment, the two mirrors are parallel to each other. In an embodiment, the first lens barrel further has a plurality of bumps and a plurality of sliders and a second mirror. The inner side surface of the barrel further has a plurality of first, second and third tracks corresponding to the convex m slider. In an embodiment, the protrusions and the slider are symmetric to the nail axis. The objects, features, and advantages will be more apparent, and the preferred embodiments are described in detail below with reference to the accompanying drawings. In one embodiment, the aforementioned bump has a tapered structure. The quadrilateral structure has a top And an obtuse angle is formed between the second and third tracks in the foregoing month. The first and second tracks are linear tracks and the first lens barrel is fixed to a camera or camera 201137427. [Embodiment] 2 pictures, this The zoom lens barrel mechanism of one embodiment of the invention may be used for a camera or a camera, which mainly comprises a hollow first barrel 2; and a second barrel 22, which may be fixed to the camera or On the body of the camera, the first lens barrel 21 is disposed on the inner side of the first lens barrel 22 in a telescopic manner. When the scene is to be photographed at different distances, the first mirror axis C2 can be rotated. A lens barrel 21 is moved in the direction of the second lens barrel + the central axis C2, thereby achieving the purpose of adjusting the zoom distance. Ϊ特说: Yes, the process of rotating the first lens barrel 21 about the central axis C2 is along the second The protrusion 211 on the outer surface of the it21 and the slider 212 will respectively slap the first and second sides of the inner surface of the brother 22, and the slider can thereby force the first lens barrel 21 to move in the opposite direction, wherein the first Lean mirror please "The central axis C2 is parallel to each other. Eight, the first - the position of the R1, R2 is adjacent and the phase of the two temples and two or two 'when the aforementioned zoom lens barrel mechanism is in the - picture shown); conversely, G - ^ degrees, the first - barrel 2 Phase; = centering (10) movement, so that the _r symbol 21 mirror 4 22 is shown in the direction of the arrow in the direction of the central axis C2 to the second barrel 22 (as shown in Fig. 4, then see the outer side of 5A, 5R 1 The first lens barrel h 槐 212 in the present embodiment is formed on the surface, and the bump 211 and the slider 211, which are formerly referred to as the central axis C2, have a tapered structure, and the slider 212 is adjacent to the convex 201137427 block 211. And having a quadrilateral structure, wherein the top surface of the quadrilateral structure has a parallelogram shape (as shown in Fig. 5B). Referring again to Fig. 6, when the zoom lens barrel mechanism is in a contracted state, the convexity on the first lens barrel 21 The block 211 and the slider 212 are located in the recess R0 below the first and second lanes R1, R2; wherein, when the first barrel 21 is rotated relative to the second barrel 22 about the central axis C2, the bump 211 is The slider 212 will enter the first and second tracks R1, R2 in a straight line structure, respectively, and slide along the first and second tracks R1, R2 (such as 7A, the arrow 211 on the first lens barrel 21 is pushed up by the first track R1, so that the first lens barrel 21 can gradually protrude from the second lens barrel 22, thereby For the purpose of adjusting the zoom distance, as shown in FIG. 7B, when the aforementioned bump 211 enters the first lane R1, the slopes on both sides of the bump 211 will be in close contact with the surface of the first rail R1, thereby improving The accuracy and stability of the motion trajectory, and since the bump 211 in this embodiment has a tapered structure, it can be applied to various forms of rails (for example, straight or curved rails), and is advantageous for enhancing the flexibility of the mechanism design. Referring again to FIG. 7C, the slider has a wedge-shaped cross section. When the slider 212 enters the second rail R2, the slider 212 does not completely fit the second lane R2, wherein the wedge section and the second track The slopes R21 on both sides of the R2 are separated by a distance d, respectively, thereby allowing space to be reserved to avoid interference when the slider 212 moves in the curved track, thereby causing damage to the mechanism. Referring to Figure 8, along with the first mirror The cylinder 21 continues to rotate about the central axis C2, and the aforementioned bumps 211 and slides 212 will enter the third track R3 by the first and second tracks R1, R2, respectively, but the first lens barrel 21 can only rotate around the central axis C2 and cannot move along the central axis C2 direction; in other words The first lens barrel .21 rotates only about the central axis C2 and is fixed to a predetermined position of the central axis C2 with respect to the second mirror 201137427. Specifically, the second and third tracks R2 and R3 are An obtuse angle 0 is formed therebetween. When the bump 211 and the slider 212 enter the third track R3, the position of the first lens barrel 21 has protruded from the second lens barrel 22 (as shown in FIG. 4). When the zoom lens barrel mechanism is subjected to an axial external force impact, the planes SI and S2 parallel to each other on the upper and lower sides of the slider 212 are respectively in contact with the inner walls R31 and R32 of the upper and lower sides of the third track R3. The first and second barrels 21, 22 are separated by preventing the bumps 211 and the slider 212 from being knocked out of the third lane R3. In view of the fact that the contact area between the bump 211 of the tapered structure and the third track R3 is small, it is difficult to provide a better structural strength. In addition, the slider 212 of the quadrilateral structure is additionally added to the outer surface of the first lens barrel 21. Therefore, when the bump 211 and the slider 212 enter the third track R3, a large contact area can be generated through the planes SI, S2 on both sides of the slider 212 and the third track R3, thereby effectively resisting external impact. In turn, the bump 211 and the slider 212 can be prevented from coming off the third track R3. In summary, the present invention mainly provides a zoom lens barrel mechanism including a hollow first lens barrel and a second lens barrel, wherein the first lens barrel is provided with at least one set of bumps and sliders, and the second mirror The cylinder is provided with a plurality of corresponding obligations, wherein the movement of the protrusions in the rail can achieve the function of telescopic zoom between the first and second barrels. In particular, the present invention can prevent the zoom lens barrel from being damaged by external force or falling, thereby greatly improving the use of the slider of the quadrilateral structure and the aforementioned obstruction. Security. Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the invention to 201137427. Those skilled in the art can make some changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. 201137427 [Simple description of the drawing] Fig. 1 is a schematic diagram showing a zoom lens provided with a telescopic zoom lens on a conventional digital camera or camera; Fig. 2 is a schematic view showing a zoom lens barrel mechanism according to an embodiment of the present invention; Schematic diagram of the actual state
第4圖表示變焦鏡筒機構中的第一鏡筒凸出於第二鏡 筒之示意圖； 第5A圖表示本發明一實施例之第一鏡筒上視圖； 第5B圖表示本發明一實施例之第一鏡筒側視圖； 第6圖表示凸塊與滑塊位於凹槽内之示音圖； 第7A圖表示凸塊與滑塊分別位於第一 '第 之示意圖； 第7B圖表示沿第7A圖中X〗, Χ2方向之局部剖面圖； 第7C圖表示沿第7人圖中父 以及 Λ4方向之局部剖面圖； 第8圖表示凸塊與滑塊位於笛_ 、·卑二軌道内之示意圖。 【主要元件符號說明】 機身10 鏡筒 11、12、13、14 數位相機100 ‘ 第一鏡筒21 201137427 第二鏡筒22 凸塊211 滑塊212 中心軸Cl、C2 距離d 凹槽R0 第一執道R1 第二軌道R2 斜面R21 第三軌道R3 内壁 R31、R32 平面SI、S2 鈍角04 is a schematic view showing the first lens barrel of the zoom lens barrel protruding from the second lens barrel; FIG. 5A is a top view of the first lens barrel according to an embodiment of the present invention; FIG. 5B is a view showing an embodiment of the present invention; The first lens barrel side view; the sixth figure shows the sound map of the bump and the slider in the groove; the 7A figure shows the convex block and the slider respectively located in the first 'first schematic diagram; the 7B figure shows the along the first In the 7A figure, X is a partial cross-sectional view in the Χ2 direction; the 7Cth is a partial cross-sectional view along the parent and the Λ4 direction in the 7th person figure; and the 8th figure shows the bump and the slider in the flute _,· eh Schematic diagram. [Main component symbol description] Body 10 Lens barrel 11, 12, 13, 14 Digital camera 100 'First barrel 21 201137427 Second barrel 22 Bump 211 Slider 212 Center axis Cl, C2 Distance d Groove R0 One way R1 second track R2 slope R21 third track R3 inner wall R31, R32 plane SI, S2 obtuse angle 0