201043504 六、發明說明： 【發明所屬之技術領域】 本發明係有關於-種支撐機構，特别係有關於一種車 用可攜式導航裝置的支撐機構。 【先前技術】 請參閱第1圖，一般車用可擴式導航裝置N(p〇rtable Navigation Device，PND)可與一支架η相結合，其中支架η 係透過其末端的吸盤S而吸附於汽車的擋風玻璃〇上，惟 Ο 此種°又置方式往往會導致駕駛人在行驶過程中視線受到阻 礙而影響行車安全。 除此之外，習知車用可攜式導航裝置的支撐機構尚可 見於美國專利公開第2007/0278371號、第2007/0278373 號、第2008/0302946號、第2006/0113434號、美國專利公 告第7344114號以及中華民國專利公告第452293號等文獻 中。應了解的是’傳統的支撐機構主要係透過各種不同型 式的旋轉機構以達到調整姿態之目的，然而其大多仍具有 ❹操作不便以及體積過大等缺點。有鑑於前述習知問題點， 如何改善車用可攜式導航裝置的支撐機構及其設置方式始 成為一重要之課題。 【發明内容】 本發明之一實施例提供一種支撐機構，用以支撐一車 用可攜式導航裝置，包括一基座、一旋臂、一延伸臂、一 第一樞軸、一第一旋鈕、一第一定位件以及一第二定位件， 其中延伸臂具有一齒條，前述第一樞軸樞接旋臂與延伸 臂，且第一旋鈕以可制：卸的方式與第一樞軸結合。前述第 MIC-2009-03 9/ 0506-Α42091 -TW/Final 3 201043504 一定位件裝配於旋臂並且ι 定位件則設置於齒條鱼笛/、 一弟一齒狀結構，前述第二 具有-第二齒狀結構位件之間，其中第二定位件 軸緊密鎖合時，第第—齒狀。卩，當第一旋鈕與第〆櫂 與齒條相Μ合，齒狀結構相互屬合，且逾狀部 於眚絲μ 制延伸臂相對旋臂運動。 於一實施例中，前 堞動 第二定位件的相反側。齒狀結構以及齒狀部形成於 於一實施例中，當俞 g*當 ^ ^ Μ苐一旋鈕相對於第一樞軸鬆脫 ^，第一、第一齒狀結構 ^ 脫離，使得延# 脫離，且齒狀部與齒條相立 脫離使付延伸#可相對旋臂旋轉或滑動。 证二f施例+刚述旋臂具有一容納空間，用以容置 延伸臂。 第二齒狀結構呈放射狀排 於一實施例中，前述第一、 列 於-實施财，前述支撐機構更包括1盤，設置於 基座底側，用以吸附在一車輛内部的儀表 於一實施例中，前述支撐機構更包括一拉柄以及一橫 桿’其中橫桿穿過基座並且連接吸盤，拉柄料接橫桿兩 端，用以牽引吸盤運動。 於一實施例中，前述支撐機構更包括一彈簧，設置於 吸盤與基座之間。 ' 於一實施例中，前述支撐機構更包括具有一第二拖轴 以及"^苐-一旋^5 ’第^框轴枢接基座與旋臂，當第—旋 與第二樞軸緊密鎖合時，旋臂相對基座固定於—特定角度。 於一實施例中，前述支撐機構更包括一第三定位件， MIC-2009-039/ 0506-A42091-TW/Final 4 201043504 固定於叙f上並且具有—第三絲結構，此外旋#具有一 第四齒狀結構，當第二熒㉙與第二框秘緊密鎖合時，第三、 第四齒狀，相互屬合以限制旋臂相對基座旋轉。 於貧施例_ ’古前述第二旋鈕相對於第二樞軸鬆脫 時’第二、第四齒狀結構相互脫離，使得旋臂可相對基座 旋轉。 於-實施例中，前述第三、第四齒狀結構呈放射狀排 列。 〇 〇 為使本發明月b更明顯易懂，下文特舉實施例並配合所 附圖式做詳細說明。 【實施方式】 〇月參閱第2圖’本發明一實施例之支撐機構獅可吸 内：的儀表板上，用以支撐—車用可攜式導航 ^ PND)i述讀機構_主要包括-基座1()、-旋 濛20以及一延伸臂3〇， 4〇，使用時可透過-拉柄在基座1G下方設有一吸盤 部產生貞Μ牵引吸盤4〇，使得吸盤4〇内 板上。#將支撑機構1〇〇吸附在車_部的儀表 於第2圖中，旋臂％ ^ 之一端係透過第一樞軸Ρ1而與 延伸# 30相互樞接，旋臂 Ρ2與基座1G樞接。另—方3的另1則是透過第二樞轴 20 〇 面，延伸臂30尚可相對於旋臂 直線α動（如第2圖中箭s 之目的，同時可避务在^_ 早用T攜式導航裝置 接著請參閱第3圖=影響到駕跌人的視線。 則迷基座10與吸盤40之間設 MIC-2009-039/ 0506-A42091-TW/Final 201043504 有一彈簧60，組裝時可將彈簧60與吸盤40由基座10下 方置入，並利用一橫桿51穿過吸盤40上之開孔41以及基 座10上之長條形開口 11，接著再使橫桿51兩端與拉柄50 結合。如第4圖所示，當拉柄50相對於基座10朝下方扳 動時，可透過橫桿51牽引吸盤40向上移動以形成負壓， 藉以將基座10吸附於儀表板上。應了解的是，在本實施例 中的旋臂20形成有一容納空間20'，當不使用支撐機構100 時，可將延伸臂30反折並藏設於前述容納空間20’内（如第 4圖所示），藉此可大幅節省空間與包材成本。 請繼續參閱第3圖，前述旋臂20呈中空結構，其中兩 個第一定位件W1分別固定在旋臂20内侧的兩個第一凹槽 21内，此外延伸臂30同樣呈中空結構，其中在延伸臂30 内側形成有一齒條31，組裝時係將兩個第二定位件W2設 置在延伸臂30的相反側，並使其分別結合於齒條31和第 一定位件W1之間。 需特別說明的是，在前述第一定位件W1上形成有放 射狀排列之第一齒狀結構W11(如第3圖所示），第二定位 件W2之一侧則同樣形成有放射狀排列之第二齒狀結構 W21(如第5A、5B圖所示），對應於前述第一齒狀結構 W11 ;此外，在第二定位件W2的另一側形成有一齒狀部 W22(如第5B圖所示），對應於前述齒條31。組裝時，第一 樞軸P1係穿過旋臂20、延伸臂30以及第一、第二定位件 Wl、W2，其中第一樞軸P1與第一旋鈕R1以可拆卸的方 式相互結合：當第一樞軸P1與第一旋鈕R1未相互鎖緊 時，延伸臂30可透過第一框軸P1而相對於旋臂20自由旋 MIC-2009-03 9/ 0506-A42091 -TW/Final 6 201043504 轉，同時延伸臂30也可相對於 者彈性地酿其延伸方向與長度。1 2G滑動’以利於使用 當使用者將第一旋叙R1魚 第二定位件W2上的第二齒：f，P1緊密鎖合時， W1上的第-齒狀結構W1 2 W21會與第一定位件 件W2上的齒狀部W22也奋與合’㈣第二定位 ❹ ❹ 延：臂，相對於旋臂2〇轉動或滑動。如前所述^ ^使用者欲調整延伸臂30的姿態時，可轉動第-旋紐R1 並使其相錄第—樞車41>1鬆脫，此時第―、第二齒狀結構 醫、w21會相互脫離，而齒狀部咖與齒條31也會相 互脫離’如此-來延伸臂3〇便可自由地相對於旋臂2〇轉 動或滑動’反之’當第-旋鈕R1相對於第—樞軸ρι鎖緊 時、，旋臂20—與延伸臂3〇之間將無法進行相對運動，藉此 可達到迅速定位之功能，並可大幅提升使用上的便利性。 在第3圖中，旋臂2〇的右端形成有兩個第二凹槽22, 兩個第三定位件W3分別固定於前述第二凹槽^内。 時’第二樞軸P2穿過旋臂2〇、第二佘 ’ ^ Η»上之穿孔⑴其中第二梅轴Ρ2Γ第位二件/3以及基座 拆卸的方式結合，當第二樞軸Ρ2盘^ /疋钮R2係以可 ’、禾〜叙鈕R2未相互鎖 緊時’旋寶20可透過第二樞軸？2而相斟於基座㈣由旋 轉。反之，-但使用者將第二旋紐R2與第二框轴p2緊密 鎖合時，第三定位件W3表面上的第三齒狀結構们會盘 基座10的穿孔12周圍的第四齒狀結構_相互鳴人，此 時旋臂2〇則會相對於基座10固定在一特定角度而^法轉 動。在本實施例中，前述第三、第四齒狀結構醫、 MIC-2009-039/〇5〇6-A42091-TW/Final 7 201043504 同樣呈放射狀排列。 由弟3圖中可看出，延伸％ — 用時了將-車用可攜式導歸置 ， ΐ:=Γ臂一伸臂3。來調整二= 的吸盤40可將置支的本實施例中，透過基座10下方 時僅韻於車⑽齡板上，使用 寺僅吊適虽地調整旋f 2G和延伸臂3Q的角度並使 車體下方延伸（如篦？圖 /、朝 導鮮圖所T ’魏有效避免相可攜式 導航，置4到駕馼人的視線，進㈣保行車安全。 綜上所述，本發明提供一種車用可攜式導航裝 用時可將其吸附在車内的儀表板上，以避免J 欲人於讀過封視線受到阻麵影㈣車安全。此外， 本發明之支樓機構因為設有中空的活動旋臂以及延伸臂， 不僅可大幅提升使用與操作上的便利性，同時兼具有不佔 空間以及容易收納等多重優點。 雖然本發明以前述之實施例揭露如上，然其並非用以 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。 【圖式簡單說明】 一第1圖表示一習知車用可攜式導航裝置與一支架結合 之不意圖； 第2圖表示本發明一實施例之支撐機構示意圖； MIC-2009-039/ 0506-A42091-TW/Final 201043504 第3圖表示第2圖中之支撐機構爆炸圖； 第4圖表示拉柄被扳動時之示意圖； 第5A圖表示本發明一實施例之第二定位件侧視圖；以 及 第5B圖表示本發明一實施例之第二定位件立體圖。 【主要元件符號說明】 支撐機構100 基座10 ^ 開口 11 穿孔12 旋臂20 容納空間20' 第一凹槽21 第二凹槽22 延伸臂30 齒條31 ❹ 吸盤40 開孔41 拉柄50 橫桿51 彈簧60 承載件C 擋風玻璃G 支架Η * 可攜式導航裝置Ν MIC-2009-039/ 0506-Α42091 -TW/Final 9 201043504201043504 VI. Description of the Invention: [Technical Field] The present invention relates to a support mechanism, and more particularly to a support mechanism for a portable navigation device for a vehicle. [Prior Art] Referring to Fig. 1, a general vehicle n. (p〇rtable Navigation Device, PND) can be combined with a bracket η, wherein the bracket η is adsorbed to the vehicle through the suction cup S at the end thereof. The windshield is placed on the windshield, but this type of re-arrangement often leads to the driver's visual line being hindered during driving and affecting driving safety. In addition, the support mechanism of the conventional portable navigation device for vehicles can be found in U.S. Patent Publication Nos. 2007/0278371, 2007/0278373, 2008/0302946, 2006/0113434, and U.S. Patent Publications. No. 7344114 and the Republic of China Patent Publication No. 452293 and the like. It should be understood that the traditional support mechanism mainly uses various types of rotating mechanisms to achieve the purpose of adjusting the posture. However, most of them still have the disadvantages of inconvenience in operation and excessive volume. In view of the above-mentioned conventional problems, how to improve the supporting mechanism of the portable navigation device for a vehicle and its setting manner has become an important issue. SUMMARY OF THE INVENTION An embodiment of the present invention provides a support mechanism for supporting a portable navigation device for a vehicle, including a base, a swing arm, an extension arm, a first pivot, and a first knob. a first positioning member and a second positioning member, wherein the extension arm has a rack, the first pivot pivotally connects the arm and the extension arm, and the first knob is detachably connected to the first pivot Combine. The aforementioned MIC-2009-03 9/ 0506-Α42091-TW/Final 3 201043504 a positioning member is assembled to the arm and the ι positioning member is disposed on the rack fish whistle/, a brother-one tooth structure, and the aforementioned second has - Between the second toothed structural members, wherein the second positioning member shaft is tightly locked, the first tooth-like shape.卩, when the first knob and the third cymbal are coupled with the rack, the toothed structures are in mutual agreement, and the overhangs are moved relative to the arm by the extension arm of the ram. In one embodiment, the front side of the second positioning member is tilted. The tooth structure and the tooth portion are formed in an embodiment, and when the knob is loosened relative to the first pivot, the first and first tooth structures are disengaged, so that the extension# Disengaged, and the teeth are separated from the rack so that the extension # can rotate or slide relative to the arm. The second embodiment of the invention has a receiving space for accommodating the extension arm. The second tooth structure is arranged in a radial manner in an embodiment. The first support mechanism is further configured to include a disk disposed on the bottom side of the base for adsorbing the instrument inside the vehicle. In one embodiment, the support mechanism further includes a handle and a crossbar, wherein the crossbar passes through the base and connects the suction cup, and the handle is connected to both ends of the crossbar for pulling the suction cup to move. In an embodiment, the support mechanism further includes a spring disposed between the suction cup and the base. In an embodiment, the support mechanism further includes a second drag shaft and a "^苐-一旋^5' frame frame pivot base and a spiral arm, when the first and second pivots When tightly locked, the arm is fixed at a specific angle with respect to the base. In an embodiment, the support mechanism further includes a third positioning member, and the MIC-2009-039/0506-A42091-TW/Final 4 201043504 is fixed on the display f and has a third wire structure, and the rotation # has one The fourth tooth structure, when the second fluorescent element 29 and the second frame are tightly locked, the third and fourth teeth are combined to each other to restrict the rotation of the arm relative to the base. In the case of the lean embodiment _ 'the second second knob is released relative to the second pivot axis', the second and fourth tooth structures are disengaged from each other, so that the arm can rotate relative to the base. In the embodiment, the third and fourth tooth structures are radially arranged. 〇 〇 In order to make the month b of the present invention more apparent, the following embodiments are described in detail with reference to the accompanying drawings. [Embodiment] Referring to Figure 2, the support mechanism of the embodiment of the present invention can be sucked inside: the instrument panel for supporting - portable navigation for vehicles ^ PND) i reading mechanism _ mainly includes - The base 1 (), the rotary horn 20 and the extension arm 3 〇, 4 〇, in use, can be provided with a suction cup portion under the base 1G through the pull-handle to generate the 贞Μ traction suction cup 4 〇, so that the suction cup 4 〇 inner plate on. #器 The mechanism for adsorbing the support mechanism 1〇〇 in the vehicle_section is shown in Fig. 2, one end of the arm % ^ is pivotally connected to the extension # 30 through the first pivot Ρ 1 , and the arm Ρ 2 and the base 1 G Pick up. In addition, the other one of the squares 3 is through the second pivot 20, and the extension arm 30 can still move relative to the spiral arm α (as the purpose of the arrow s in Fig. 2, and can be avoided in the early use of ^_ The T-portable navigation device is then referred to Figure 3 = affecting the line of sight of the driver. The MIC-2009-039/ 0506-A42091-TW/Final 201043504 has a spring 60 between the pedestal 10 and the suction cup 40. The spring 60 and the suction cup 40 can be placed under the base 10, and a crossbar 51 is passed through the opening 41 on the suction cup 40 and the elongated opening 11 on the base 10, and then the crossbar 51 is The end is coupled with the pull handle 50. As shown in Fig. 4, when the pull handle 50 is pulled downward relative to the base 10, the suction cup 40 can be pulled upward through the cross bar 51 to form a negative pressure, thereby absorbing the base 10. On the dashboard, it should be understood that the arm 20 in the embodiment is formed with a receiving space 20'. When the supporting mechanism 100 is not used, the extending arm 30 can be folded back and hidden in the receiving space 20'. Inside (as shown in Figure 4), this can save a lot of space and packaging costs. Please continue to refer to Figure 3, the aforementioned spiral arm 20 has a hollow structure The two first positioning members W1 are respectively fixed in the two first grooves 21 inside the spiral arm 20, and the extending arm 30 is also in a hollow structure, wherein a rack 31 is formed inside the extending arm 30, and the assembly will be performed. The two second positioning members W2 are disposed on opposite sides of the extending arm 30, and are respectively coupled between the rack 31 and the first positioning member W1. Specifically, the first positioning member W1 is formed on the first positioning member W1. The first tooth structure W11 (as shown in FIG. 3) arranged radially, and the second tooth structure W21 arranged radially on one side of the second positioning member W2 (as shown in FIGS. 5A and 5B) And corresponding to the first tooth structure W11; further, a tooth portion W22 (shown in FIG. 5B) is formed on the other side of the second positioning member W2, corresponding to the aforementioned rack 31. A pivot P1 is passed through the arm 20, the extension arm 30, and the first and second positioning members W1, W2, wherein the first pivot P1 and the first knob R1 are detachably coupled to each other: when the first pivot When the P1 and the first knob R1 are not locked to each other, the extension arm 30 can pass through the first frame axis P1 and is opposite to the arm 20 MIC-2009-03 9/ 0506-A42091 -TW/Final 6 201043504, while the extension arm 30 can also elastically extend its direction and length relative to the person. 1 2G sliding 'to facilitate use when the user will be the first The second tooth on the second positioning member W2 of the R1 fish is rotated: f, when the P1 is tightly locked, the first tooth structure W1 2 W21 on the W1 and the tooth portion W22 on the first positioning member W2 are also excited. And (4) The second positioning ❹ : :: The arm rotates or slides relative to the arm 2〇. As described above, when the user wants to adjust the posture of the extension arm 30, the first-rotation button R1 can be rotated and the first-cylinder 41>1 can be released, and the first and second dentate structures are , w21 will be separated from each other, and the toothed coffee and the rack 31 will also be separated from each other 'so - the extension arm 3 〇 can be freely rotated or slid relative to the arm 2 ' 'or vice versa when the first knob K1 is opposite to When the first pivot ρι is locked, the relative movement between the swing arm 20 and the extension arm 3 将 will not be possible, thereby achieving the function of rapid positioning and greatly improving the convenience in use. In Fig. 3, the second end of the arm 2 is formed with two second recesses 22, and the two third positioning members W3 are respectively fixed in the second recesses. When the second pivot P2 passes through the spiral arm 2〇, the second 佘 ' ^ Η» on the perforation (1) where the second mei shaft Ρ 2 Γ the second two pieces / 3 and the detachment of the pedestal, when the second pivot Ρ 2 discs ^ / 疋 button R2 system can be ', Wo ~ Xu button R2 are not locked to each other 'Guo Bao 20 can pass through the second pivot? 2 and the pedestal (4) is rotated. On the contrary, when the user closes the second knob R2 and the second frame axis p2, the third tooth structure on the surface of the third positioning member W3 will have the fourth tooth around the through hole 12 of the disk base 10. The structure _ mutual sounding, at this time the arm 2 〇 will be fixed relative to the base 10 at a specific angle and rotate. In the present embodiment, the aforementioned third and fourth dentate structures, MIC-2009-039/〇5〇6-A42091-TW/Final 7 201043504 are also arranged radially. As can be seen from the figure of the younger brother 3, the extension % - when used - will be used for the car portable guide, ΐ: = Γ arm one arm 3. In this embodiment, the suction cup 40 for adjusting the two = can be placed through the bottom of the base 10, and only the angle of the car (10) is used, and the angle of the rotation f 2G and the extension arm 3Q is adjusted only by using the temple. Extending the underside of the car body (such as 篦 图 图 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 When a portable navigation device for a vehicle is provided, it can be adsorbed on the dashboard of the vehicle to avoid the safety of the person who has read the line of sight (4). In addition, the branch mechanism of the present invention is provided. The hollow movable arm and the extension arm not only greatly improve the convenience of use and operation, but also have multiple advantages such as no space occupation and easy storage. Although the present invention is disclosed above in the foregoing embodiments, it is not The present invention is intended to be limited to those skilled in the art, and the invention may be modified and modified without departing from the spirit and scope of the invention. Scope BRIEF DESCRIPTION OF THE DRAWINGS [FIG. 1] FIG. 1 is a schematic view showing a conventional portable navigation device for a vehicle combined with a bracket; FIG. 2 is a schematic view showing a support mechanism according to an embodiment of the present invention; 2009-039/ 0506-A42091-TW/Final 201043504 Figure 3 shows the exploded view of the support mechanism in Figure 2; Figure 4 shows a schematic view of the handle when it is pulled; Figure 5A shows the first embodiment of the present invention 2 is a side view of the positioning member; and FIG. 5B is a perspective view showing a second positioning member according to an embodiment of the present invention. [Main component symbol description] Support mechanism 100 Base 10 ^ Opening 11 Perforation 12 Spiral arm 20 Housing space 20' First concave Slot 21 Second groove 22 Extension arm 30 Rack 31 吸 Suction cup 40 Opening 41 Pull handle 50 Crossbar 51 Spring 60 Carrier C Windshield G Bracket Η * Portable navigation device MIC MIC-2009-039/ 0506 -Α42091 -TW/Final 9 201043504
第一樞軸PI 第二框轴P2 第一旋鈕R1 第二旋鈕R2 吸盤S 第一定位件W1 第一齒狀結構W11 第二定位件W2 第二齒狀結構W21 齒狀部W22 第三定位件W3 第三齒狀結構W31 第四齒狀結構W41 MIC--2009-039/ 0506-A42091-TW/Final 10First pivot PI Second frame axis P2 First knob R1 Second knob R2 Suction cup S First positioning member W1 First tooth structure W11 Second positioning member W2 Second tooth structure W21 Tooth W22 Third positioning member W3 third tooth structure W31 fourth tooth structure W41 MIC--2009-039/ 0506-A42091-TW/Final 10