201243540 六、發明說明： 【發明所屬之技術領域】 本發明是關於-種折疊式支樓裝置，特別是指一種可 改變可攜式電子產品擺放角度的折疊式支撐裝置。 【先前技術】 般例如筆記型電腦、平板電腦等等的可攜式電子產 上，雖然可以擺放在平坦的桌面上，㈣於擺放 後電子產品的操作介面或者顯示幕只能平放在桌面上，故 :用上不太方便。4 了使電子產品可以順應需要調整擺放 角度’US7,712,719B2發明專利公開-種折疊式支撐裝置 ，此種支撑裝置主要以—個基座為中心、，並架設-支可調 整插轉角度的後腳架，以及兩支可展開並調整突伸長度的 别腳架，藉前述後㈣可相對於該基座樞轉，以及所述前 腳架可以調整長度的結構配合，來達到支撐該電子產品， :文m子產σσ之擺放角度的目的。前述發明專利雖然 可以達到預期的效果，但整體來說結構比較複雜、組裝也 比較麻煩。 【發明内容】 本發月之目的疋在&供一種結構創新、簡單，並可支 撐可攜式電子產品之擺放角度的折疊式支撐裝置。 本發明之折疊式气撐裝置可供一可攜式的電子產品傾 斜地倚靠，並包含：一基座、兩支可側向張開及靠合地安 裝在該基座上的前腳架’以及一後腳架，該後腳架包括一 個可往後展開及收合地和該基座結合的後聊主$，以及一 201243540 個可枢轉地與該後腳主座連接的延伸腳座，所述後腳主座 具有一個可收納該延伸腳座的收藏空間。 當該延伸腳座收納在該收藏空間内時，該後腳主座將 成為該支揮裝置的後支撐部位。而當該延伸腳座旋出該收 藏空間並成為該支撐裝置的後支撐部位時，將改變該等前 腳架的傾斜角度。 本發明的有益功效在於；藉由該延伸腳座可收納或突 出於該後腳主座的設計，可以簡單的結構設計，來達到改 變該等前腳架及擺放之電子產品之傾斜角度的目的。 【實施方式】 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較佳實施例的詳細說明中，將可清楚 的呈現。 參閱圖1、2、3,本發明支撐裝置之一較佳實施例是一 種折疊式設計，並可在圖1的一使用位置及圖2的一收折 位置間轉換，在使用位置時，該支撐裝置可供一例如平板 電腦之可攜式電子產品1傾斜地倚靠，並且改變該電子產 品1之擺放角度，所述支擇裝置包含：_基座2、兩支可側 向張開及靠合地和該基座2結合的前腳架3，以及一個可往 後張開及收合地和該基座2結合的後腳架4。 參閱圖2、3、4,本實施例之基座2包括一個三角形的 基部21、兩個左右對稱地由該基部21往下突出的樞接部 22、-片自該基部21往下突出並位於該等拖接部η前方 的平靠部23、一個位於該等樞接部22之間且開口朝下的第 4 201243540 一空間24，以及一個位於該平靠部23與該等枢接部22之 間的第二空間25。每個樞接部22都具有—個左右向貫穿且 軸向對應的第一樞接孔221，以及一個前後向貫穿的第二樞 接孔222。該等第—拖接孔221都具有_個第—圓孔段⑶ ’以及-個自該第-圓孔段223㈣向外端延伸的第一定 位段224’而該等第二樞接孔222都具有一第二圓孔段⑵ ，以及數個徑向延伸的第二定位段226。所述平靠部23具 有兩個轴向對應該等第二樞接孔222的其中之一的靠板穿 孔 231。 本貫施例之该專前聊架3都包括：一前腳桿η、一支 將該前腳桿31以可側向展開及收合方式和該基座2結合的 前樞軸機構32，以及一個可樞轉地結合在該前腳桿31鄰近 下方位置的架撐件33。該前腳桿31具有一個可伸入該基座 2之第一空間25内的支點部311，以及一個位於下方的稽設 部312 ’該支點部311具有一個朝向另一前腳架3的展開限 制面313，以及一個前後向貫穿且非圓形的前連動孔3丨4。 而該樓設部312具有兩片長度不同的架板315、一個連接該 等架板315的底連板316 ’以及一個開口朝上的夾槽317。 本實施例之前樞軸機構32具有一轴向架設在對應之第 二枢接孔222及靠板穿孔231間並穿過該前連動孔314的 前枢軸321 ’以及一個束緊該前枢軸321並對應該第二樞接 孔222的前軸束套322。該前樞軸321具有一個與該前連動 孔314連動地套合的前連動段324，所述前軸束套322具有 一個束緊該前框軸321的前束套部326，以及數個自該前束 201243540 套αρ 326突出並卡嵌於該第二樞接孔222之第二定位段226 内的前止轉部327 ’藉此防止該前轴束套322旋轉。 而該架撐件33具有一個樞擺支部331、一支將該樞擺 支部331以可樞轉方式安裝在該撐設部312之該等架板315 間的樞擺支軸332，以及一個自該枢擺支部331延伸的架撐 部333，該樞擺支部331具有一個當該架撐件33相對於該 前腳桿31展開時抵靠在該底連板316上的展開抵面334， 而該架撐部333是由止滑材料製成，並具有數個平行間隔 的止滑架槽335 » 參閱圖2、4、5，本實施例之後腳架4包括一個後腳主 座41、一個將該後腳主座41以可樞擺方式和該基座2結合 的後樞軸機構42、一個延伸腳座43，以及一個將該延伸腳 座43以可樞轉方式安裝在該後腳主座41上的後腳支軸44 。該後腳主座41具有一個界定出一開口朝下之收藏空間 411的主撐部412，以及一個自該主撐部412往上突出並具 有一後連動孔410的軸樞部413，所述主撐部412具有兩個 朝向該收藏空間411的侧壁414、兩個位在前上方的收藏卡 塊415、兩個位於前下方的收納槽417，以及兩個位在後下 方的展開卡槽416。 本實施例之後樞軸機構42具有兩個左右對稱的柩轴單 元420，每個樞軸單元420都具有一後樞軸421，以及一個 後軸束套422，該等後樞軸421都具有一個連動地插設在該 後腳主座41之後連動孔410内的後連動段423，所述後軸 束套422則是具有一個具彈性地束套在該後樞軸421上的 201243540 後束套部425，以及一個自該後束套部425突出並卡合於該 第一樞接孔221之第一定位段224内的後止轉部426。 本實施例之延伸腳座43是可收藏及展開地和該後腳主 座41結合，並具有兩個位在前方並與該後腳主座4丨之該 等收藏卡塊415對應的收藏卡槽431 ’以及兩個位於前下方 並可因旋轉而對應該等展開卡槽416或者收納槽417的展 開卡塊432。 參閱圖1、3、5,本實施例之支撐裝置位在該使用位置 時，該等前腳桿31是以前樞軸機構32為支點並往側邊張 開，由於該等前樞軸機構32之前樞軸321是被該等前軸束 套22所束緊，因此，該等前腳桿31可以隨需要定位在任 可I田的位置，但其張開之最大角度是受到該等前腳桿3 j 之展開限制面313的限制，即當該等前腳桿31之展開限制 面313相靠抵時，該等前腳桿31就無法再展開。當該等前 腳^ Μ之張開角度適當後，再以樞擺支軸332為支點將所 f架擇件33往前攤開，直到該等架撐件33的展開抵面334 靠抵在該前腳桿31之底連板316時，即完成該等前腳架3 的展開操作。 而該後腳架4之後腳主座41得以該後樞軸機構42為 支點往後樞擺，由於前述後樞軸機構42之後樞軸421和該 後腳主座41連動地套合，且該後樞軸421被後軸束套々a 束緊，因此，在該後腳主座4丨往後展開的過程，該後柩軸 421得以因為該後軸束套422的束緊，而無段地停止在任何 角度’相同道理，職腳主座41之展開的最A角度也受到 201243540 限制，即當該後腳主座41之軸樞部413與該基座2之基部 21的底部抵靠時（見圖2)，該後腳架4即位在最大展開角度 。當該後腳架4的展開角度適當之後，再將該電子產品玉 擺放在該㈣㈣33的上方，並使其往後倚靠在該基座2 的刚方，本實施例亦可根據傾斜度的需要，讓該電子產品】 的底部選擇地架靠在該等架樓件33上不同的止滑架槽奶 上。 參閱圖5、6、7，當本實施例要縮小該電子產品j的傾 斜角度時，可以利用該延伸腳座43來增加該後腳架4的斜 標長度，即本實施例可以後腳支轴44為支點，將原本收藏 在該後腳主座41之收藏空間411内的延伸腳座43旋出。即 當該延伸腳座43收藏在該收藏空間411内時，該後腳主座 41的收藏卡塊415位在該延伸腳座43的收藏卡槽431内， 且該延伸腳座43的展開卡塊432是位在該後腳主座41之 收納槽417内，此時該後腳主座41的底部形成該支撐裝置 的後支撐部位。 而當該延伸腳座43以該後腳支軸44為支點先由前往 下樞擺，之後往後樞擺地靠近該後腳主座41之該等側壁 414時，該延伸腳座43之展開卡塊432就會卡合在該後腳 主座41之展開卡槽416 β，此時該延伸腳座43就會和後 腳主座41成一直線，並成為該支撐裝置的後支撐部位。亦 即，該後腳架4將由圖1的收藏位置轉換到圖6的展開位 置，藉由該後腳架4之延伸腳座43的展開，可以縮小該前 腳架3的傾斜角度。 8 201243540 由以上說明可知，本發明利用樞接的方式將前腳架3、 後腳架4及基座2結合，並以束緊的方式讓該等前、後腳 架3、4可以無段定位在各個角度的設計，不僅結構創新、 使用方便，更具有構造簡單、安裝方便等功效。 惟以上所述者’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是本發明折疊式支撐裝置之一較佳實施例的使用 狀態側視圖，圖中該支撐裝置位在一使用位置； 圖2疋該較佳實施例的一後視立體圖，圖中該支撐裝 置位在一收折位置； 圖3是該較佳實施例之一前視立體分解圖； 圖4疋該較佳實施例之一局部立體分解圖主要顯示 s亥支撐裝置之一基座與其他元件的相對關係； 圖5是該較佳實施例之另一局部立體分解圖，主要顯 不該支撲裝置之一後聊I架； 圖6是一類似圖1的使用狀態參考圖，圖中該支撐裝 置亦位在泫使用位置，但展開角度與圖丨不同；及 圖7疋該較佳實施例之一局部立體圖，主要顯示該後 腳架在調整角度時的狀態。 201243540 【主要元件符號說明】 1 電子產品 32 前樞軸機構 2 基座 321 前柩轴 21 基部 322 前轴束套 22 框接部 324 前連動段 221 第一框接孔 326 前束套部 222 第二框接孔 327 前止轉部 223 第一圓孔段 33 架撐件 224 第一定位段 331 柩擺支部 225 第二圓孔段 332 枢擺支軸 226 第二定位段 333 架撐部 23 平靠部 334 展開抵面 231 靠板穿孔 335 止滑架槽 24 第一空間 4 後腳架 25 第二空間 41 後腳主座 3 前腳架 410 後連動孔 31 前腳桿 411 收藏空間 311 支點部 412 主撐部 312 撐設部 413 軸樞部 313 展開限制面 414 側壁 314 前連動孔 415 收藏卡塊 315 架板 416 展開卡槽 316 底連板 417 收納槽 317 夾槽 42 後枢軸機構 10 201243540 420 樞軸單元 426 421 後樞軸 43 422 後軸束套 431 423 後連動段 432 425 後束套部 44 後止轉部 延伸腳座 收藏卡槽 展開卡塊 後腳支軸 11201243540 VI. Description of the Invention: [Technical Field] The present invention relates to a folding type branch building device, and more particularly to a folding type supporting device capable of changing a viewing angle of a portable electronic product. [Prior Art] Portable electronic products such as notebook computers, tablet computers, etc., can be placed on a flat desktop, and (4) the operating interface or display screen of the electronic product can only be placed flat after being placed. On the desktop, it is not very convenient to use. 4, the electronic product can be adjusted according to the needs of the placement angle 'US7,712,719B2 invention patent disclosure - a kind of folding support device, the support device is mainly centered on a pedestal, and erect - support to adjust the insertion angle a rear stand, and two legs that can be deployed and adjusted for the elongation, which can be pivoted relative to the base by the rear (4), and the front leg can be adjusted in length to support the electronic product. , : The purpose of the placement angle of σσ. Although the aforementioned invention patent can achieve the desired effect, the overall structure is complicated and the assembly is troublesome. SUMMARY OF THE INVENTION The purpose of this month is to provide a folding support device that is structurally innovative, simple, and supports the placement angle of portable electronic products. The folding air holding device of the present invention can lean obliquely on a portable electronic product, and comprises: a base, two front legs that can be laterally opened and mounted on the base, and a front leg a rear stand, the rear stand includes a rear talker $ for unfolding and collapsing back and the base, and a 201243540 extension foot pivotally connected to the rear foot main seat, the rear foot main The seat has a storage space for accommodating the extended foot. When the extension foot is housed in the storage space, the rear foot main seat will become the rear support portion of the swing device. When the extension foot is rotated out of the storage space and becomes the rear support portion of the support device, the inclination angle of the front legs will be changed. The beneficial effects of the present invention are that the extension foot can be accommodated or protruded from the design of the rear foot main seat, and the simple structural design can be used to achieve the purpose of changing the tilt angle of the front legs and the placed electronic products. 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. Referring to Figures 1, 2, and 3, a preferred embodiment of the support device of the present invention is a foldable design and can be switched between a use position of Figure 1 and a folded position of Figure 2, in the use position, The support device can be tilted against a portable electronic product 1 such as a tablet computer and change the placement angle of the electronic product 1. The support device comprises: _ base 2, two laterally openable and hinged A front stand 3 combined with the base 2 and a rear stand 4 which can be opened and folded back and combined with the base 2. Referring to Figures 2, 3 and 4, the base 2 of the present embodiment includes a triangular base portion 21, two pivotal portions 22 projecting laterally symmetrically from the base portion 21, and a sheet projecting downward from the base portion 21 and a flat portion 23 located in front of the towing portions n, a fourth 201243540 space 24 located between the pivot portions 22 and having an opening downward, and a portion located at the hinge portion 23 and the pivot portions A second space 25 between 22. Each of the pivoting portions 22 has a first pivot hole 221 extending through the axial direction and correspondingly in the axial direction, and a second pivot hole 222 extending through the front and rear. The first tow holes 221 each have a first circular hole segment (3) 'and a first positioning segment 224' extending from the first circular hole segment 223 (four) to the outer end and the second pivoting holes 222 Each has a second circular hole section (2) and a plurality of radially extending second positioning sections 226. The flat portion 23 has two plate through holes 231 that axially correspond to one of the second pivot holes 222. The pre-existing chat frame 3 of the present embodiment includes: a front leg η, a front pivot mechanism 32 for combining the front leg 31 in a laterally expandable and collapsible manner with the base 2, and a The bracket 33 is pivotally coupled to the front leg 31 adjacent to the lower position. The front leg 31 has a fulcrum portion 311 extending into the first space 25 of the base 2, and a lower portion 312 having a deployment restricting surface facing the other front legrest 3 313, and a front connecting hole 3丨4 that runs through and is non-circular. The floor portion 312 has two frame plates 315 having different lengths, a bottom plate 316' connecting the frame plates 315, and a clamping groove 317 having an opening upward. Before the embodiment, the pivot mechanism 32 has a front pivot 321 ' axially disposed between the corresponding second pivot hole 222 and the plate through hole 231 and passing through the front linkage hole 314, and a front pivot 321 is tightened. The front axle sleeve 322 corresponding to the second pivot hole 222. The front pivot 321 has a front linkage section 324 that is engaged with the front linkage hole 314. The front axle sleeve 322 has a front sleeve portion 326 that tightens the front frame shaft 321 and a plurality of The front beam 201243540 sets the αρ 326 protruding and is engaged with the front rotation stop portion 327 ′ in the second positioning section 226 of the second pivot hole 222 to thereby prevent the front axle sleeve 322 from rotating. The support member 33 has a pivoting branch portion 331, a pivoting support shaft 332 for pivotally mounting the pivoting branch portion 331 between the brackets 315 of the supporting portion 312, and a self. The pivoting portion 331 extends from the support portion 333, and the pivoting portion 331 has a deployment abutment surface 334 that abuts against the bottom leg 316 when the support member 33 is unfolded relative to the front leg 31. The bracket 333 is made of a non-slip material and has a plurality of parallel spaced stop slots 335. Referring to Figures 2, 4 and 5, after the embodiment, the stand 4 includes a rear foot main seat 41 and a The rear foot main seat 41 is pivotally coupled to the base 2, a rear pivot mechanism 42, an extension foot 43, and a pivoting mounting of the extension foot 43 to the rear foot main seat 41. Rear leg shaft 44. The rear foot main seat 41 has a main support portion 412 defining a storage space 411 with an opening downward, and a shaft pivot portion 413 protruding upward from the main support portion 412 and having a rear interlocking hole 410. The support portion 412 has two side walls 414 facing the storage space 411, two front and upper gusset blocks 415, two front and lower accommodating grooves 417, and two unfolded card slots 416 located at the lower rear side. . After the embodiment, the pivot mechanism 42 has two left and right symmetrical shaft units 420, each of which has a rear pivot 421 and a rear axle sleeve 422, each of which has a rear pivot 421 The rear linkage section 423 is inserted in the interlocking hole 410 behind the rear foot main seat 41. The rear axle sleeve 422 has a 201243540 rear sleeve portion elastically sleeved on the rear pivot 421. 425, and a rear stop portion 426 protruding from the rear sleeve portion 425 and engaged in the first positioning portion 224 of the first pivot hole 221. The extension foot 43 of the present embodiment is a collectable and unfoldable combination with the rear foot main seat 41, and has two favorite card slots 431 positioned in front and corresponding to the collection blocks 415 of the rear foot main seat 4丨. And two expansion tabs 432 located at the front lower side and corresponding to the rotation of the card slot 416 or the receiving slot 417. Referring to Figures 1, 3 and 5, when the supporting device of the embodiment is in the use position, the front leg 31 is pivoted by the front pivot mechanism 32 and is opened to the side, due to the front pivot mechanism 32. The pivots 321 are tightened by the front axle sleeves 22, so that the front legs 31 can be positioned at any position as needed, but the maximum angle of opening is limited by the deployment of the front legs 3j. The limitation of the face 313, that is, when the deployment restricting faces 313 of the front leg 31 are abutted, the front leg 31 cannot be deployed again. When the opening angles of the forefoot legs are appropriate, the pivoting support shafts 332 are used as a fulcrum to spread the frame members 33 forward until the deployment abutment surface 334 of the frame struts 33 abuts When the bottom of the front leg 31 is connected to the plate 316, the unfolding operation of the front stand 3 is completed. After the rear stand 4, the foot main seat 41 is pivoted backward by the rear pivot mechanism 42 as a fulcrum, and the rear pivot mechanism 42 and the rear foot main seat 41 are interlocked by the rear pivot mechanism 42 and the rear pivot The shaft 421 is tightened by the rear axle sleeve 々a, so that the rear sill shaft 421 can be stopped indefinitely due to the tightening of the rear axle sleeve 422 during the rearward deployment of the rear foot main seat 4丨. At any angle 'same principle, the most A angle of the deployment of the main foot 41 is also limited by 201243540, that is, when the pivot portion 413 of the rear foot main seat 41 abuts against the bottom of the base portion 21 of the base 2 (see FIG. 2), the rear stand 4 is at the maximum deployment angle. After the deployment angle of the rear leg 4 is appropriate, the electronic product jade is placed above the (4) (four) 33 and leaned back on the rigid side of the base 2, and the embodiment can also be used according to the inclination. The bottom of the electronic product is selectively placed against the different skid slot milk on the frame members 33. Referring to FIGS. 5, 6, and 7, when the tilt angle of the electronic product j is to be reduced in this embodiment, the extension leg 43 can be used to increase the length of the bevel of the rear leg 4, that is, the rear leg support 44 can be used in this embodiment. As the fulcrum, the extending foot 43 originally stored in the storage space 411 of the rear foot main seat 41 is unscrewed. That is, when the extension foot 43 is stored in the storage space 411, the favorite card block 415 of the rear foot main seat 41 is located in the collection card slot 431 of the extension foot 43, and the expansion block of the extension foot 43 is 432 is located in the receiving groove 417 of the rear foot main seat 41. At this time, the bottom of the rear foot main seat 41 forms a rear supporting portion of the supporting device. When the extension leg 43 is pivoted to the lower side with the rear leg pivot 44 as a fulcrum, and then pivoted closer to the side walls 414 of the rear foot main seat 41, the expansion block of the extension foot 43 is extended. The 432 is engaged with the unfolding slot 416 β of the rear foot main seat 41. At this time, the extension foot 43 is aligned with the rear foot main seat 41 and becomes the rear support portion of the supporting device. That is, the rear stand 4 is shifted from the stowed position of Fig. 1 to the unfolded position of Fig. 6, and the tilting angle of the front stand 3 can be reduced by the unfolding of the extended leg 43 of the rear leg 4. 8 201243540 As can be seen from the above description, the present invention combines the front leg frame 3, the rear leg frame 4 and the base 2 by means of pivoting, and allows the front and rear legs 3, 4 to be positioned without any segments in a tightening manner. The angle design not only has the advantages of structural innovation, convenient use, but also simple structure and convenient installation. However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present 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 Figure 1 is a side view of a preferred embodiment of a preferred embodiment of the folding support device of the present invention, wherein the support device is in a use position; Figure 2 is a rear view of the preferred embodiment 3 is a perspective view of the preferred embodiment of the preferred embodiment; FIG. 3 is a front perspective exploded view of the preferred embodiment; FIG. 4 is a partially exploded perspective view of the preferred embodiment. FIG. 5 is another partial exploded perspective view of the preferred embodiment, mainly showing one of the baffle devices and then talking about the I frame; FIG. 6 is a similar use of FIG. In the state reference figure, the supporting device is also located in the 泫 use position, but the unfolding angle is different from the drawing ;; and FIG. 7 is a partial perspective view of the preferred embodiment, mainly showing the state of the rear leg when adjusting the angle. 201243540 [Description of main component symbols] 1 Electronic product 32 Front pivot mechanism 2 Base 321 Front cymbal 21 Base 322 Front axle sleeve 22 Frame 324 Front linkage section 221 First frame connection hole 326 Front beam cover 222 Two frame hole 327 front rotation stop portion 223 first circular hole segment 33 struts 224 first positioning segment 331 swaying branch portion 225 second circular hole segment 332 pivoting fulcrum shaft 226 second positioning portion 333 struts 23 The abutment portion 334 is unfolded to the abutment surface 231, the plate is perforated 335, the carriage slot 24, the first space 4, the rear frame 25, the second space 41, the rear foot main seat 3, the front leg 410, the rear linkage hole 31, the front leg 411, the space 311, the fulcrum portion 412, the main support portion 312 Supporting portion 413 Axle pivot portion 313 Expansion restricting surface 414 Side wall 314 Front connecting hole 415 Collecting block 315 Frame plate 416 Unfolding card slot 316 Bottom plate 417 Storage groove 317 Clamping groove 42 Rear pivot mechanism 10 201243540 420 Pivot unit 426 421 Rear pivot 43 422 Rear axle sleeve 431 423 Rear linkage section 432 425 Rear collar section 44 Rear stop extension Foot extension Collection card slot Expansion block Rear foot support shaft 11