201020604 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種光學器材， 材的傳動裝置。 肖別-指-種光學器 【先前技術】 -般光學器材進行光學倍率調整或 動裝置帶動鏡群移動至適當位置以獲得所需之倍率或2 參閱圖1〜3,為現有—種光學器材傳動裝置2,包含— 基座m向γ可轉動地拖設於該基座21之 、-驅動《桿22轉動之驅動單元23、—平行於該螺桿 設置於該基座21之導桿24、—設置於該基座21 螺桿22與該導桿24連接之支架25、一鏡框26、一可顺 地螺設於該螺桿22且與該鏡框26頂抵之螺帽27，及 設於該鏡框26與該基座21間且值推該鏡框％遠離該基座 21之彈簧28 ’其中，該支架25包括一面向該螺桿22之導 引槽251。該鏡框26包括一可滑移地套設於該導桿24以限 制該鏡框26旋轉方向之導引部26卜及-套設於該螺桿22 且與該螺帽27貼抵之驅動部262。該螺帽27包括—本體 271，及一由該本體271向外延伸且與該導引槽25ι嵌合之 導塊272 ’如此’即可限定該本體271在該螺桿22轉動時 僅能沿一平行於該軸向Y的光軸Y1方向直線移動。 當要使該鏡棍26靠近該基座21時，藉由該驅動單元 23驅動該螺桿22原位繞其自身軸線旋轉，使該螺帽27沿 201020604 該軸向Y往該基座21移動而推動該鏡框％之驅動部如， 如此’即可使該鏡框26向下移動並同時壓縮該彈簧28。相 反地’當要使該鏡框26遠離該基座21時，僅需使該螺桿 22逆向旋轉’該螺帽27將沿該轴向γ遠離該基座2卜此 時該彈簧28將推送該鏡框26之驅動部262而使該鏡框 26遠離該基座21。 雖然藉由該㈣單元23可使該鏡框26移動而達到倍 率調整或對焦之目的，但該傳動裝置2仍具有下列缺點： 響 、易產生噪音：該螺帽27在該螺桿22旋轉時是與 該螺桿22呈面接觸，使得兩者在移動過程中易因摩擦而產 生噪音。 二、組裝不易：為避免該螺帽27在移動過程中繞該軸 向γ旋轉或晃動，因此該導塊272與該導引槽251需相當 準確地配合，但如此卻造成該螺帽27在組 將該導塊-對準該導引槽251才能順利嵌入，=;也 過程較為不易。 【發明内容】 因此，本發明之目的即在提供一種可以降低噪音易 於組裝，及降低製造成本之光學器材的傳動裝置。 於是，本發明光學器材的傳動裝置包含一基座、一螺 桿、一驅動單元、一導引件、一框體，及一夾持件，該螺 矛干疋沿一軸向可轉動地樞設於該基座。該驅動單元是用以 驅動該螺桿轉動。該導引件是平行該螺桿設置於該基座。 該框體包括一與該導引件配合以限制該框體旋轉方向之導 6 201020604 並包括一對 引部。該夾持件是置於該框體且可彈性變形 相配合緊密夾持該螺桿之夾臂。 由於該災持件之該等夹臂在該螺桿旋轉時是與該螺桿 呈點接觸’因此可降低該螺桿轉動因摩擦產生之噪音，且 該等夾臂組裝時不需準確對位即可夾持該螺桿，可二 動裝置更易於組裝。 Λ 【實施方式】201020604 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a transmission device for optical equipment and materials. Xiaobie-finger-type optics [Prior Art] - Optical equipment for optical magnification adjustment or moving device to move the mirror group to the appropriate position to obtain the desired magnification or 2 See Figure 1-3 for existing optical equipment The transmission device 2 includes a base unit m rotatably dragged to the base 21, a drive unit 23 for driving the rod 22 to rotate, a guide rod 24 disposed parallel to the screw and disposed on the base 21, a bracket 25 disposed on the base 21 and connected to the guide rod 24, a frame 26, a nut 27 screwed to the screw 22 and abutting against the frame 26, and a frame 27 disposed on the frame A spring 28 between the base 21 and the base 21 is pushed away from the base 21. The bracket 25 includes a guiding slot 251 facing the screw 22. The frame 26 includes a guiding portion 26 that is slidably sleeved on the guiding rod 24 to restrict the rotation direction of the frame 26, and a driving portion 262 that is sleeved on the screw 22 and abuts against the nut 27. The nut 27 includes a body 271, and a guide block 272 that extends outwardly from the body 271 and is engaged with the guiding groove 25i. Thus, the body 271 can be defined only when the screw 22 rotates. The optical axis Y1 parallel to the axial direction Y moves linearly. When the mirror stick 26 is to be brought close to the base 21, the driving unit 23 drives the screw 22 to rotate in its own axis, so that the nut 27 moves along the axial direction 201020604 toward the base 21. Pushing the drive portion of the frame %, for example, can cause the frame 26 to move downward and simultaneously compress the spring 28. Conversely, when the frame 26 is to be moved away from the base 21, the screw 22 only needs to be rotated counterclockwise. The nut 27 will move away from the base 2 along the axial direction. At this time, the spring 28 will push the frame. The drive unit 262 of 26 moves the frame 26 away from the base 21. Although the frame 26 can be moved by the (4) unit 23 to achieve the purpose of magnification adjustment or focusing, the transmission device 2 has the following disadvantages: loud and easy to generate noise: the nut 27 is rotated when the screw 22 rotates The screw 22 is in surface contact so that both of them are susceptible to noise due to friction during the movement. Second, the assembly is not easy: in order to prevent the nut 27 from rotating or swaying around the axial direction during the movement, the guide block 272 and the guiding groove 251 need to be fitted quite accurately, but the nut 27 is The group is aligned with the guiding groove 251 to be smoothly embedded, and the process is relatively difficult. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a transmission device that can reduce the noise, facilitate assembly, and reduce manufacturing costs. Therefore, the transmission device of the optical device of the present invention comprises a base, a screw, a driving unit, a guiding member, a frame body, and a clamping member, and the screwing spear is rotatably pivoted along an axial direction On the pedestal. The drive unit is for driving the screw to rotate. The guiding member is parallel to the screw disposed on the base. The frame includes a guide 6 201020604 that cooperates with the guide to limit the direction of rotation of the frame and includes a pair of guides. The clamping member is a clamping arm disposed on the frame and elastically deformable to closely clamp the screw. Since the clamping arms of the catastrophic member are in point contact with the screw when the screw rotates, the noise generated by the friction of the screw rotation can be reduced, and the clamping arms can be assembled without accurate alignment. With this screw, the two-action device is easier to assemble. Λ [Embodiment]
有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之二個較佳實施例的詳細說明中，將可 清楚的呈現。 在本發明被詳細描述之前，要注意的是，在以下的說 明内容中，類似的元件是以相同的編號來表示。 參閱圖4〜6,為本發明光學器材的傳動裝置一第一 較佳實施例，包含一基座u、一螺桿12、一驅動單元Η、 —導引件14、一框體15，及一夾持件16。 該基座11包括一和該螺桿12與該導引件14連接之支 架 111。 該螺桿12是沿一軸向L可轉動地樞設於該基座u。 該驅動單元13包括一驅動該螺桿12轉動之馬達131， 及一連結該馬達13 1與該螺桿12之減速齒輪系！ 32。 該導引件14是一平行該螺桿12而插設於該基座丨丨之 導桿。 該框體15包括一導引部ι51、一套設於該螺桿12之驅 動部152、一形成於該驅動部152之定位柱153，及一用以 7 201020604 承載光學7G件之承載部154，其中’該導引部151是可滑移 地套設於該導引件14以限制該框體15旋轉方向》該驅動 部152具有二切口 150，該等切口 150沿該軸向L是位於不 同高度。該承載部154承載之光學元件可以是鏡片或是光 耦合元件，在本實施例中，該承載部154承載之光學元件 疋鏡片。該鏡片及承載部154位在一平行於該軸向L之光 軸L1上。 參閱圖5〜7，該夾持件16是一設置於該框體15之扭力 彈簧，並包括一套設於該框體15之定位柱153且可彈性變 形之螺旋段161，及一對與該螺旋段161連接之夾臂162。 該夾持件16組裝時，是先扳動遠離該框體15之夾臂162 圖7中之箭頭指示方向轉動，進而使該螺旋段Μ〗旋緊 產生一預力，之後，將該等夾臂162分別嵌設於該等切口 150並使該螺旋段161套設於該定位柱153，如此該等夾 臂162會因為該螺旋段161之預力作用而相配合地緊密地 失持該螺桿12。值得說明的是，該炎持件16也可以是一板 簧。 =參閱圖4、5 ’當要使該框體15往該基座u移動時， 該驅動早疋13之馬達131經由該減速齒輪系驅動該螺 桿η原位繞其自身軸線旋轉，並由該螺桿12之螺牙推播 該失持件16之該等夾f 162，如此’該等夾臂162將頂抵 該框趙15之驅動部152而使該框趙15往該基座u移動。 相反地’當要使該框趙15遠離該基座„時，.僅需控制該馬 達⑶使該螺桿12逆轉，此時’藉由該螺桿12之螺牙推 201020604 擠該等夾臂162 離該基座11。 而頂抵該驅動部152,進而使該框體 15遠 、差由上述說明，可將本發明之優點歸納如下： 、可降低噪音：由於該夾持件16之該等夾臂162在 該螺桿12旋轉時是與該螺桿12呈點接觸，相較於習知該 螺帽27疋與該螺桿22呈面接觸之狀況，可大幅降低轉動 時之摩擦面積，進而降低噪音。The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention. Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals. 4 to 6, a first preferred embodiment of a transmission device for an optical device according to the present invention includes a base u, a screw 12, a drive unit, a guide member 14, a frame 15, and a Clamping member 16. The base 11 includes a bracket 111 that is coupled to the screw 12 and the guide member 14. The screw 12 is rotatably pivoted to the base u along an axial direction L. The driving unit 13 includes a motor 131 for driving the rotation of the screw 12, and a reduction gear train connecting the motor 13 1 and the screw 12! 32. The guiding member 14 is a guiding rod inserted parallel to the screw 12 and inserted into the base. The frame body 15 includes a guiding portion ι51, a driving portion 152 disposed on the screw 12, a positioning post 153 formed on the driving portion 152, and a bearing portion 154 for carrying the optical 7G member on the 7 201020604. Wherein the guiding portion 151 is slidably sleeved on the guiding member 14 to limit the rotation direction of the frame 15, the driving portion 152 has two slits 150, and the slits 150 are different along the axial direction L. height. The optical component carried by the carrying portion 154 may be a lens or a light coupling component. In this embodiment, the carrier 154 carries the optical component 疋 lens. The lens and carrier 154 are positioned on an optical axis L1 parallel to the axial direction L. Referring to FIGS. 5-7, the clamping member 16 is a torsion spring disposed on the frame 15, and includes a set of helical segments 161 elastically deformable on the positioning post 153 of the frame 15, and a pair of The spiral section 161 is connected to the clamp arm 162. When the clamping member 16 is assembled, the clamping arm 162 that is moved away from the frame 15 is firstly rotated in the direction indicated by the arrow in FIG. 7, so that the spiral segment is tightened to generate a pre-force, and then the clamping force is generated. The arms 162 are respectively embedded in the slits 150 and the spiral segments 161 are sleeved on the positioning posts 153, so that the clamping arms 162 can cooperatively and tightly lose the screw due to the pre-stress of the spiral segments 161. 12. It should be noted that the illuminating member 16 can also be a leaf spring. Referring to Figures 4, 5 'When the frame 15 is to be moved toward the base u, the motor 131 driving the drive 13 drives the screw η to rotate in situ about its own axis via the reduction gear train, and The screw of the screw 12 pushes the clip f 162 of the missing member 16, such that the clip arm 162 will abut against the driving portion 152 of the frame 15 to move the frame 15 toward the base u. Conversely, 'when the frame Zhao 15 is to be moved away from the base „, only the motor (3) needs to be controlled to reverse the screw 12, at which time the actuator arm 162 is squeezed by the screw 12 of the screw 12 The base 11 is abutted against the driving portion 152, and further the frame 15 is far and far. The advantages of the present invention can be summarized as follows: The noise can be reduced: due to the clamping of the clamping member 16 The arm 162 is in point contact with the screw 12 when the screw 12 rotates. Compared with the conventional state in which the nut 27 is in surface contact with the screw 22, the frictional area during rotation can be greatly reduced, thereby reducing noise.
二、易於組裝：該等夾臂162在組裝時僅需分別嵌入 該等切π 150即可夾持該螺桿12，{需如習知該螺帽在 組裝時必需準確地將該導塊272對準該導引槽⑸才能順 利嵌入，因此可使該傳動裝置丨更易於組裝。 二、可降低製造成本：藉由該夾持件16與該切 口 150 之設置，即可使該螺桿12帶動該框體15沿該轴向l移動 ，相較於習知需設置該導引槽251、該螺帽27及該彈簧28 才能使該螺桿22帶動該鏡框26，可降低該傳動裝置丨之製 造成本。 值得說明的是，該導引件14也可以是一導槽，而該框 體15之導引部151則是一與該導引件14配合之凸塊，如 此，同樣可以限制該框體15旋轉方向。 參閱圖8,為本發明之一第二較佳實施例，其與上述第 一較佳實施例之差異在於更包含一彈性件17，該彈性件17 是一壓縮彈簧，並夾設於該框體15之驅動部152與該基座 11間且恆推該驅動部152遠離該基座u，如此，除了可以 達到與該第一較佳實施例相同之效果外，還可以吸收該等 9 201020604 夹臂162與該螺桿12之螺牙間的背隙，以及在上升時輔助 舉升該框體15。 淮以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍’即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一立體圖，說明現有一種光學器材傳動裝置； 圖2是一剖面圖，說明—螺桿與一鏡框之連接關係，· ，圖3是-剖面圖，說明—導塊與一導引槽嵌合時之情❿ 圖4是一立體圖 一第一較佳實施例； 圖5是一剖面圖 形； 說明本發明光學器材的傳動裝置之 說月驅動部套設於一螺桿時之情 螺桿時之情形 圖6是一剖面圖，說明一夾持件爽持一 圖7是-示意圖，說明情形該 方向轉動而旋緊一螺旋段之情形.及、'、一夾臂往 圖8是一剖面圖，說明本發 第一較佳實施例。 10Second, easy to assemble: the clamping arms 162 need only be embedded in the cutting π 150 respectively to clamp the screw 12, and it is necessary to accurately arrange the guiding block 272 when assembling the nut. The guide groove (5) can be smoothly inserted, so that the transmission device can be assembled more easily. The manufacturing cost can be reduced. The screw 12 can move the frame 15 along the axial direction l by the clamping member 16 and the slit 150. The guiding slot is required to be provided. 251. The nut 27 and the spring 28 enable the screw 22 to drive the frame 26, thereby reducing the manufacturing cost of the transmission device. It should be noted that the guiding member 14 can also be a guiding slot, and the guiding portion 151 of the frame body 15 is a protrusion that cooperates with the guiding member 14, so that the frame body 15 can also be restricted. turn around. Referring to FIG. 8, a second preferred embodiment of the present invention is different from the first preferred embodiment in that it further includes an elastic member 17, which is a compression spring and is sandwiched between the frame. The driving portion 152 of the body 15 and the base 11 are constantly pushed away from the base u. Thus, in addition to the same effects as the first preferred embodiment, the same can be absorbed. The backlash between the clamp arm 162 and the screw of the screw 12, and the lifting of the frame 15 when it is raised. The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention, All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a conventional optical device transmission device; FIG. 2 is a cross-sectional view showing a connection relationship between a screw and a frame, and FIG. 3 is a cross-sectional view illustrating a guide block. FIG. 4 is a perspective view of a first preferred embodiment; FIG. 5 is a cross-sectional view showing the transmission of the optical device of the optical device of the present invention when the monthly driving portion is sleeved on a screw Figure 6 is a cross-sectional view showing a holding member holding a Figure 7 is a schematic view showing the situation in which the direction is rotated to tighten a spiral section. And, ', a clip arm to the figure 8 is a cross-sectional view showing the first preferred embodiment of the present invention. 10
201020604 【主要元件符號說明】 I ..........傳動裝置 II .........基座 III .......支架 12 .........螺桿 13 .........驅動單元 131 .......馬達 132 .......減速齒輪系 14 .........導引件 15 .........框體 150.......切口 151 .......導引部 152 .......驅動部 153 .......定位柱 154 .......承載部 16 .........失持件 161 .......螺旋段 162……夾臂 17 .........彈性件 L..........轴向 L1 ........光軸201020604 [Description of main component symbols] I ..........Transmission device II .........Base III....... Bracket 12 ........ Screw 13 .... drive unit 131 . . . motor 132 .... reduction gear train 14 ... ... guide 15 .. .......frame 150.......cut 151.......guide 152.......drive 153.......positioning post 154 . . . bearing portion 16 ... ... holding member 161 ... ... spiral segment 162 ... clamping arm 17 ... ... elastic member L ..........axial L1 ........ optical axis
1111