M440569 五、新型說明： 【新型所屬之技術領域】 <· . 本創作關於-種伸缩式US B隨身碟，尤指—種金屬外殼為抽出 成型之無接縫式方管之伸縮式u s B隨身碟。 【先前技術】 u s B隨身碟是-種行動健存裝置，係可與電腦連接以存取資 料，以方便攜’更由於技_销進步，目前的u s B隨身碟容量 不斷的擴大，其應用範圍也越來越廣。 目前市壯有伸賦USB㈣碟設計，其主要係將—個具有一 U S B介面電路及一具記憶功能的積體封裝電路之印刷電路板，組裝 於絕緣座上，然後再以對開的兩個絕緣外殼包覆該絕緣座並在绝 緣座上設計-推控裝置伸规緣外殼，以操作推控裝置使usb介面 電路可伸出絕緣外殼外使用，或收縮於絕緣外殼内。 在美國專利6, 932, 629「具有U S B終端之裝置（Device withUSB terminal)」前案中，所揭露結構為一個具有u s B終端的裝置主體及一 個至少包覆USB終端的蓋體。該裝置主體及蓋體之組合，使得蓋體 與裝置主體可相對延伸或壓縮，達到U S B終端被***蓋體内，或經 由相對旋轉使USB終端顯露。 在美國專利6,979,210及7,462,044「具有可收縮U S B連接器的姆 才9裝置（Thumb drive with retractable USB connector)」前案中， 3 所揭露的姆指裝置具有—且以儲存數位f料的板上記憶體一公us B連接器連接該板上記憶體至—個電腦應用的us b璋以及一延伸 /收縮機構使該連接器能自裝置之—開σ延伸出及不使用時收縮。在 該兩案之第二圖揭露了其可行的實施例，就必需是以兩個分離零件213 及214構成外殼，這樣才能组合延伸/收縮機構及記憶體。 又如，在美國專利申請公開20080233776「可收縮之記憶裝置 (RETRACTABLEMEMORYDRIVE)」前案中，揭露了一可收縮之記 憶裝置，包括了 一頂殼、一中間載體、一電子裝置如us B姆指裝置' 及一底殼。其也是以頂殼及底殼構成外殼部份。 另，參見第二十圖所示一種簡易的習知伸縮式U s B隨身碟之分 解圖。在該圖中於具有一滑道9 2的外殼91，而電路板9 3上具有 一T型滑塊9 4，係可扣入第一及第二定位孔.g 1丄、g丄2。該τ 型滑塊9 4可被推動而選擇性的扣入滑道9 2上的第一或第二定位孔 911或912，以控制印刷電路板前段的u S B介面電路是伸出咬 收入金屬外殼91内。此一結構雖然與傳統頂殼及底殼結構不同且易 於組裝。然而’由於電路板9 3在外殼91内移動並無阻擋，故電路 板9 3易脫落，有待改良》 另外，這些習知的結構，將使得整個U S B隨身碟的組裝十分不 方便且費時’也會使得製造成本大幅提高，實有待改善。 【新型内容】 緣此，本創作提供了一種伸縮式USB隨身碟，主要係以一抽出 成型之無接缝式方管所構成之金屬外殼内設有一可相對滑動的絕緣 座，該絕緣座内設有一印刷電路板。在該金屬外殼之一表面開設有一 滑槽，且該滑槽上至少具有一第一定位孔及一第二定位孔；而該絕緣 座相對於該金屬外殼之滑槽位置形成一滑塊，該滑塊被設置於一彈片 上以壓迫式伸入該滑槽内；同時，在該滑塊上具有與卡制塊，使該滑 塊可被選擇定位於第一定位孔或第二定位孔。該滑塊定位於第一定位 孔時，該絕緣座及印刷電路板被收縮於該金屬外殼内；但當該滑塊定 位於第二定位孔時，該絕緣座之前段部及U S B介面電路伸出金屬外 设之前開口外。 本創作之主要目的係在提供一種伸縮式USB隨身碟，由於其中 金屬外殼是以抽出成型之無接縫式方管，故在製造成本上大副降低， 且不易損壞；同時’由於金屬外殼是—體成型，不再如前案必需以兩 片組裝，故裝配工作變得十分簡易且快速。 本創作之進一目的係在提供一種伸縮式us B隨身碟，其中金屬 外殼之-側®接賴棚口位設—透孔，而絕緣座補該透孔位 置形成一缺角；可利用該透孔而可連接其他物品，例如鍊子或隨身捲 輪等。 本創作之再一目的係在提供一種伸縮式USB隨身碟，其中金屬 外殼之滑槽上進-步設有—第三定位孔，视緣座之本體魏端形成 一具有一缺口的勾體。 本創作之再—目的係在提供—種伸縮式USB隨身碟，其中抽出 成型之無接縫式方管所構成之金殼内設有—可相對滑動的絕緣本 體部’而«口設有-絕緣前段部；該絕緣本體部内設有—印刷電路 板。在該金屬外殼之-側面開設有—滑槽，且該滑槽上具有一第一定 位孔及-第二定位孔；而絕緣本體部相對於該金屬外殼之滑槽位置形 成-滑塊，該滑塊被設置於-彈片上以壓迫式伸入該滑槽内；同時， 在該滑塊上具有與卡制塊’使該滑塊可被選擇纽於第—定位孔或第 二定位孔。該滑塊定位於第-定位孔時，舰緣本體部及印刷電路板 被收縮於該金屬外朗；但當騎塊定位於第二定位猶，該絕緣本 體部前行’使印刷電路板上_SB介面電路及金屬遮蔽罩伸出金屬 外殼前開口内的絕緣前段部外。 以下，將依制面騎之實蘭而詳加本_之結構特點及 使用功效》 【實施方式】 請參見第-圖至第三圖，係為本創作—種伸縮式U s B隨身碟之 第-種實施例’其仙—金屬外幻丨、__電路板i 2及一絕緣 座13所構成。 金屬外殼1 1係為抽出成型之無接縫式方管，具有—前開口1 1 1及後開Π ! i 2 ’並在頂關設有—滑槽i i 3 ;該滑槽m上 具有一第一定位孔114及一第二定位孔1i 5。 印刷電路板i2具有-USB介面電路丄21及一具記憶功能的 積體封裝電路12 2，可參見第二圖所示，該U s B介面電路丄2 ^ 設置於該積體封裝電路12 2前方。 絕緣座13以可滑動地設置於該金屬外殼11内，至少具有一本 體部131及一前段部13 2，該前段部13 2係與標準USB插頭 相同，並自底面向内形成一凹陷空間13 3 (參見第二圖所示）以卡 合收容該印刷電路板12於其内。絕緣座13相對於金屬外殼11< 滑槽113位置形成一滑塊13 4，該滑塊13 4被設置於一彈片1 3 5上以壓迫式伸入該滑槽113内。在滑塊13 4上具有與該第一 或第二定位孔1 14或115相干涉的卡制塊13 6，使該滑塊13 4可被選擇定位於第一定位孔114或第二定位孔115。 本創作之動作可參考第三圖及第四圖，同時配合第五圖及第六 圖。參見第二圖及第六圖，當滑塊13 4定位於第一定位孔114時， 絕緣座13之本體部131及前段部132收縮於金屬外殼丄丄内， 在未使用時朗保護功34定位於第二定位孔i丄5 時，參見第四圖及第六圖虛線所示，絕緣座i 3之前段部丄3 2及印 刷電路板12之USB介面電路121伸出金屬外殼η之前開口工 1 1，而可***U S Β插座上，以供資料的存取應用。 實際操作時’可按麼滑塊13 4向下’使卡制塊13 6脫離對第 或第疋位孔114或115之扣合，使得絕緣座13可在金屬外 殼11内自由滑移。如此以連到伸縮之目的。 由於本鱗之金屬外殼！丨是以抽出成型之無接縫式方管故在 製造成本上大㈣降低，且不易損壞，時，本創作金屬外殼1 1是一 體成尘$再如别案必需以兩片組裝，故裝配工作，變得十分簡易且快 M440569 本創作第一種實施例中，彈片13 5—體成型跨接於絕緣座工3 上。同時’滑塊134伸出滑槽113之表面為三個相連接的圓弧面， 以増加摩擦力’方便使用者操作。另外，金屬外殼11之—側面接近 該後開P112位置開設一透孔116，而絕緣座丄3相對該透孔工 16位置形成一缺角i 3 7 ;此設計，可利用該透孔116而可連接 其他物品’例如鍊子或隨身捲輪等。 進者，參見第七圖至第九圖，係為本創作一種伸縮式USB隨身 碟之第二種實施例，與第一種實施例相同，其係由一金屬外殼丄工、 一印刷電路板12及一絕緣座13所構成。其差別，係在其中金屬外 殼11之滑槽113上進一步設有一第三定位孔117，而絕緣座工 3之本體部131後端形成一具有一缺口13 9的勾體13 8。 當滑塊13 4定位於第一定位孔114時，如第九圖所示，.絕緣 座13之本體部131及前段部13 2收縮於金屬外殼1 1内，而勾 體13 8之缺口13 9也收縮於金屬外殼11内，但勾體13 8部份 伸出金屬外殼11之後開口112外，以形成一環體。 當潸塊13 4定位於第二定位孔115時，參見第十圖，絕緣座 13之前段部13 2及印刷電路板12之US B介面電路121伸出 金屬外殼1 1之刖開口1 1 1 ’而可***U S B插座上，以供資料的 存取應用。 當潸塊13 4定位於第三定位孔117時，參見第十一圖，絕緣 座13之本體部131及前段部13 2收縮於金屬外殼1 1内，但勾 體13 8之缺口13 9自金屬外殼11之後開口112伸出，以方便 8 勾扣其他物品，例如鍊子或隨身捲輪等，然後再回復至第九圖之位置。 參見第十二圖至第十五圖，係為本創作一種伸缩式U § b隨身碟 之第二種實施例，其係由一金屬外殼31、一印刷電路板3 2、一絕 緣前段部3 3及一絕緣後段部3 4所構成。 金屬外殼31係為抽出成型之無接縫式方管，具有一前開口 31 1及後開口 312，在其一側面開設有一滑槽313 ;該滑槽313 上具有一第一定位孔314及一第二定位孔315。 印刷電路板32具有一USB介面電路3 21及一具記憶功能的 積體封裝電路3 2 2，該ϋ S B介面電路3 21設置於該積體封裝電 路3 2 2前方，並包覆有一金屬遮蔽罩3 2 3。 絕緣剪段部3 3被固定設置於金屬外殼3 1之前開口 3 1 1内， ' , _ - 具有一開孔3 3 1以供US Β介面電路3 2 1及金屬遮蔽罩3 2 3穿 出。 絕緣後段部3 4以可滑動地設置於金屬外殼31内，絕緣後段部 3 4自底面向内形成一凹陷空間3 41以卡合收容印刷電路板3 2之 積體封裝電路3 2 2於其内，且綺於金屬外殼3 1之滑槽3 1 3位 置形成一滑塊3 4 2，該滑塊3 4 2被設置於一彈片3 4 3上以壓迫 式伸入滑槽313内。在滑塊3 4 2上具有與第一或第二定位孔31 4或315相干涉的卡制塊3 4 4，使該滑塊3 4 2可被選擇定位於 第一定位孔314或第二定位孔315。 參見第十三圖，當滑塊3 4 2定位於第一定位孔314時，該絕 緣後段部3 4及印刷電路板3 2收縮於金屬外殼31内。參見第十五 圖，此時可按壓滑塊3 4 2，使卡制塊3 4 4脫離對第—定位孔3丄 4扣合’而可推動絕緣後段部3 4移動。參見第十四圖，當滑塊3 4 2定位於第二定位孔315時，該絕緣後段部3 4向前滑移，使得印 刷電路板3 2之U S B介面電路3 21及金屬遮蔽罩3 2 3伸出該金 屬外殼31前開口 311之絕緣前段部3 3外。 在此第三實施例中，積體封裝電路3 2 2兩側緣接近後緣位置分 別開設一道扣槽3 2 4，而絕緣後段部3 4之凹陷空間3 41末端延 伸兩個勾扣體3 4 5 ’該勾扣體3 4 5分別扣入扣槽3 2 4内以固定 印刷電路板3 2，可參見第十五圖所示。 進者，其中絕緣前段部3 3兩側面分別形成一扣塊3 3 2，而金 屬外殼31兩側面相對該扣塊3 3 2位置分別形成一扣孔3 i 6，扣 塊3 3 2扣入扣孔3 1 6内以完成結合；同時.，絕緣前段部3 3兩側 面前緣分卿成-定位塊3 3 3，而金屬外殼3 1 _面相對該定位 塊3 3 3位置分別形成-切口 3 χ 7 ’該定位塊3 3 3嵌人該切口 3 1 7内。 參見第十六圖及第十七圖’係為本創作-種伸縮式u s B隨身碟 之第四種實施例’與前述第二種實施觸似，係由—金屬外殼工i、 一印刷電路板12及-金屬座i 4所構成，第二種實施例的絕緣座丄 2以金屬m 4取代，且金屬座;l 4上的彈片工4 5 ；^種分離式結 構，其前後端具有凸緣14 51扣人金屬座丄4上—對槽體工4 a内 而可連動；而滑塊14 4也是被成型於彈片丄4 5上的。由於金屬座 14為金屬材料不能提供印刷電路板工2的卡合力，因此印刷電路板 12是被勝而黏合於金屬座i 4内的，並被滑塊工4 4在金屬外殼丄 1的滑槽113内移動而一同移動，以達到伸缩功能。 參見第十八圖及第十九圖，係為本創作一種伸縮式u S B隨身碟 之第五種實施例，與前述第三種實施例類似’其係由一金屬外殼31、 一印刷電路板3 2、一絕缘前段部3 3及一絕緣後段部3 4所構成ώ 所不同者，係其中印刷電路板3 2並不是一個具記憶功能的積體封裝 電路’而是以多個IC構成的傳統記憶功能的電路3 2 5，且前端為 一個傳統的USB插頭3 2 3 a，而其他元件及操作，皆與前述第三 種實施例相同。 · 综上所陳’本創作所提供的伸縮式U S B隨身碟，係完全符合專 利要件，爰依法提出申請。 【圖式簡單說明】 第一圖代表本創作第一種實施例之分解圖， 第二圖代表本創作第一種實施例之另一角度分解圖， 第二圖代表丰創作第一種實施例之組合圖， 第四圖代表本創作第一種實施例之組合圖，但U S B介面電路及前段部 伸出金屬外殼， 第五圖代表本創作第一種實施例之俯視圖， 第八圖代表紅圖中沿A A之剖視圖及動作示意圖， 第七圖代表本創作第二種實施例之分解圖， 第圖代表本創作第二種實施例之另一角度印刷電路板及絕緣座之分 解圖， 第九圖代表本創作第二種實施例之組合圖， 圖，但U S B介面電路及前段部 第十圖代表顿作^二種實細之组合M440569 V. New description: [New technical field] [This article is about - a type of telescopic US B flash drive, especially a metal case with a jointless telescopic type of square tube A pen drive. [Prior technology] us B flash drive is a kind of mobile storage device, which can be connected with a computer to access data, and it is portable. Moreover, due to the advancement of technology, the capacity of the current USB B drive is constantly expanding. The scope is also getting wider and wider. At present, the city has a design of the USB (four) disc, which is mainly a printed circuit board with a USB interface circuit and a memory-packed integrated package circuit, assembled on the insulating seat, and then insulated by two opposites. The outer casing encloses the insulating seat and is designed on the insulating seat - the push control device extends the flange outer casing to operate the push control device so that the usb interface circuit can be used outside the insulating outer casing or shrink into the insulating outer casing. In the prior art of U.S. Patent No. 6,932,629, the entire disclosure of which is incorporated herein by reference. The combination of the main body of the device and the cover body allows the cover body and the device body to be relatively extended or compressed, so that the U S B terminal is inserted into the cover body, or the USB terminal is exposed by relative rotation. In the prior U.S. Patent Nos. 6,979,210 and 7,462,044, "Thumb drive with retractable USB connector", the disclosed m-finger device has - and stores on-board memory The body-us USB connector connects the memory on the board to a us b璋 for a computer application and an extension/contraction mechanism that allows the connector to extend from the device's opening σ and shrink when not in use. In the second diagram of the two cases, a possible embodiment is disclosed in which it is necessary to form the outer casing with two separate parts 213 and 214 in order to combine the extension/contraction mechanism and the memory. For example, in the case of the "RETRACTABLE MEMORYDRIVE" of the US Patent Application Publication No. 20080233776, a retractable memory device is disclosed, including a top case, an intermediate carrier, and an electronic device such as a USB finger. Device 'and a bottom case. It also forms a housing portion with a top case and a bottom case. In addition, refer to the decomposition diagram of a simple conventional telescopic U s B flash drive shown in the twenty-fifth figure. In the figure, a housing 91 having a slide 92 is provided, and a circuit board 93 has a T-shaped slider 94 for snapping into the first and second positioning holes .g 1 , g 丄 2 . The τ-type slider 94 can be pushed to selectively engage the first or second positioning holes 911 or 912 on the slide 92 to control the front end of the printed circuit board. Inside the outer casing 91. This structure is different from the conventional top and bottom shell structures and is easy to assemble. However, since the circuit board 93 moves in the outer casing 91 without blocking, the circuit board 93 is easy to fall off and needs to be improved. In addition, these conventional structures make the assembly of the entire USB flash drive inconvenient and time consuming. This will result in a significant increase in manufacturing costs and needs to be improved. [New content] Therefore, this creation provides a retractable USB flash drive, which is mainly provided with a relatively slidable insulating seat in a metal casing formed by a jointless square tube. A printed circuit board is provided. a sliding slot is formed on a surface of the metal housing, and the sliding slot has at least a first positioning hole and a second positioning hole; and the insulating seat forms a slider with respect to the position of the sliding slot of the metal housing. The slider is disposed on a resilient piece to press into the sliding slot; at the same time, the slider has a locking block on the slider, so that the slider can be selectively positioned in the first positioning hole or the second positioning hole. When the slider is positioned in the first positioning hole, the insulating seat and the printed circuit board are contracted in the metal casing; but when the slider is positioned in the second positioning hole, the front portion of the insulating seat and the USB interface circuit extend Out of the metal peripherals before opening. The main purpose of this creation is to provide a retractable USB flash drive. Since the metal casing is a seamless square tube that is drawn out, the manufacturing cost is reduced and the damage is not easy. At the same time, the metal casing is - Body molding, no longer necessary to assemble in two pieces as before, so the assembly work becomes very simple and fast. A further objective of the present invention is to provide a retractable us B flash drive in which the side of the metal casing - the side sill is positioned with a through hole, and the insulating seat complements the position of the through hole to form a corner; Holes can be connected to other items, such as chains or carry-over reels. A further object of the present invention is to provide a retractable USB flash drive in which a sliding groove is provided on the metal casing to provide a third positioning hole, and the body end of the viewing edge seat forms a hook body having a notch. The purpose of this creation is to provide a telescopic USB flash drive in which a gold-shell formed by a seamless square tube is provided with a relatively slidable insulating body portion. An insulating front section; a printed circuit board is disposed in the insulative housing portion. a sliding slot is formed on a side surface of the metal casing, and the sliding slot has a first positioning hole and a second positioning hole; and the insulating body portion forms a slider with respect to a position of the sliding slot of the metal casing. The slider is disposed on the elastic piece to press into the sliding groove; at the same time, the slider has a locking block on the slider to enable the slider to be selected from the first positioning hole or the second positioning hole. When the slider is positioned on the first positioning hole, the ship body portion and the printed circuit board are contracted to the metal outer flange; but when the riding block is positioned at the second position, the insulating body portion is forwarded to make the printed circuit board The _SB interface circuit and the metal shield extend beyond the insulating front section in the front opening of the metal casing. In the following, the structure and function of this _ will be added according to the actual riding of the surface. [Embodiment] Please refer to the first to the third figure, which is the creation of the type of telescopic U s B flash drive. The first embodiment is composed of a metal-metal illusion, a circuit board i 2 and an insulating seat 13. The metal casing 11 is a jointless square tube with a front opening 1 1 1 and a rear opening i i 2 ' and is provided with a sliding groove ii 3 at the top; the sliding groove m has a The first positioning hole 114 and a second positioning hole 1i 5 . The printed circuit board i2 has a USB interface circuit 丄 21 and a memory-packed integrated package circuit 12 2 . As shown in the second figure, the U s B interface circuit 丄 2 ^ is disposed on the integrated package circuit 12 2 . In front. The insulating seat 13 is slidably disposed in the metal casing 11 and has at least a body portion 131 and a front portion 13 2 . The front portion 13 2 is identical to the standard USB plug and defines a recessed space 13 from the bottom surface. 3 (shown in the second figure) the printed circuit board 12 is housed therein by snapping. The insulating seat 13 is formed with a slider 13 4 relative to the metal housing 11 < the sliding slot 113. The slider 13 4 is disposed on a resilient piece 135 to press into the sliding slot 113. The slider 13 4 has a locking block 13 6 that interferes with the first or second positioning hole 14 or 115, so that the slider 13 4 can be selectively positioned on the first positioning hole 114 or the second positioning hole 115. The actions of this creation can refer to the third and fourth figures, together with the fifth and sixth figures. Referring to the second and sixth figures, when the slider 13 4 is positioned at the first positioning hole 114, the body portion 131 and the front portion 132 of the insulating seat 13 are contracted in the metal casing ,, and the work is protected when not in use. When the second positioning hole i丄5 is located, as shown by the dotted lines in the fourth and sixth figures, the front portion 丄3 of the insulating seat i3 and the USB interface circuit 121 of the printed circuit board 12 are extended before the metal casing η extends. Work 1 and can be plugged into a US Β socket for data access applications. In actual operation, the slider 13 6 can be disengaged from the first or third clamping hole 114 or 115 by the slider 13 4 downward, so that the insulating seat 13 can freely slide in the metal casing 11. So to connect to the purpose of expansion and contraction. Because of the metal shell of this scale!丨It is a jointless square tube that is drawn out, so the manufacturing cost is large (four), and it is not easy to be damaged. When the metal casing 1 1 is integrated into dust, it is necessary to assemble two pieces as necessary. Work, it becomes very simple and fast M440569 In the first embodiment of the present invention, the elastic piece 13 is integrally formed on the insulating work 3 . At the same time, the surface of the slider 134 extending from the sliding groove 113 is three arc-shaped surfaces which are connected to each other to facilitate the user's operation. In addition, a through hole 116 is defined in a side of the metal casing 11 adjacent to the rear opening P112, and the insulating seat 3 forms a notch i 3 7 with respect to the position of the through hole 16; this design can utilize the through hole 116 Other items can be connected, such as a chain or a reel. In addition, referring to the seventh to ninth drawings, a second embodiment of a retractable USB flash drive is created, which is the same as the first embodiment, which is completed by a metal casing and a printed circuit board. 12 and an insulating seat 13 are formed. The difference is that a third positioning hole 117 is further disposed on the sliding slot 113 of the metal casing 11, and the rear end of the body portion 131 of the insulating base 3 forms a hook 13 8 having a notch 13 9 . When the slider 13 4 is positioned on the first positioning hole 114, as shown in the ninth figure, the body portion 131 and the front portion 13 2 of the insulating seat 13 are contracted in the metal casing 1 1 , and the notch 13 of the hook 13 8 9 is also shrunk into the metal casing 11, but the hook portion 13 8 extends beyond the opening 11 of the metal casing 11 to form a ring body. When the block 13 4 is positioned at the second positioning hole 115, referring to the tenth figure, the front portion 13 of the insulating seat 13 and the US B interface circuit 121 of the printed circuit board 12 protrude from the opening 1 1 of the metal casing 1 1 'It can be plugged into a USB socket for data access applications. When the block 13 4 is positioned in the third positioning hole 117, referring to the eleventh figure, the body portion 131 and the front portion 13 2 of the insulating seat 13 are contracted in the metal casing 1 1 , but the notch 13 9 of the hook 13 8 is The metal casing 11 is then extended by the opening 112 to facilitate the hooking of other items, such as a chain or a reel, etc., and then returning to the position of the ninth figure. Referring to the twelfth to fifteenth drawings, a second embodiment of a telescopic U s b flash drive is provided, which is composed of a metal casing 31, a printed circuit board 3, and an insulating front section 3. 3 and an insulating rear section 34 are formed. The metal casing 31 is a seamlessly formed square tube having a front opening 31 1 and a rear opening 312, and a sliding groove 313 is formed on one side thereof; the sliding groove 313 has a first positioning hole 314 and a The second positioning hole 315. The printed circuit board 32 has a USB interface circuit 321 and a memory-packed integrated circuit 32 2 . The SB interface circuit 321 is disposed in front of the integrated package circuit 32 and is covered with a metal shield. Cover 3 2 3. The insulating shearing portion 3 3 is fixedly disposed in the opening 3 1 1 of the metal casing 3 1 , and has an opening 3 3 1 for the US Β interface circuit 3 2 1 and the metal shielding cover 3 2 3 to pass through. . The insulating rear portion 34 is slidably disposed in the metal casing 31, and the insulating rear portion 34 is formed with a recessed space 341 from the bottom surface to engage the integrated package circuit 3 2 2 of the printed circuit board 3 2 . A slider 3 4 2 is formed in the position of the sliding groove 3 1 3 of the metal casing 31. The slider 342 is disposed on a resilient piece 343 to press into the sliding slot 313. a slider block 344 having interference with the first or second positioning holes 31 4 or 315 on the slider 342, such that the slider 342 can be selectively positioned in the first positioning hole 314 or the second Positioning hole 315. Referring to the thirteenth embodiment, when the slider 342 is positioned at the first positioning hole 314, the insulating rear portion portion 34 and the printed circuit board 32 are shrunk into the metal casing 31. Referring to the fifteenth figure, at this time, the slider 3 4 2 can be pressed to disengage the card block 34 4 from the first positioning hole 3丄 4 to push the insulating rear section 34 to move. Referring to the fourteenth figure, when the slider 342 is positioned in the second positioning hole 315, the insulating rear section 34 is slid forward, so that the USB interface circuit 321 of the printed circuit board 32 and the metal mask 3 2 3 extends out of the insulating front portion 3 3 of the front opening 311 of the metal casing 31. In the third embodiment, the two sides of the integrated package circuit 3 2 2 respectively define a buckle groove 3 2 4 near the rear edge position, and the recessed space 3 41 of the insulated rear portion 34 extends the two hook bodies 3 . 4 5 ' The hook body 3 4 5 is respectively inserted into the buckle groove 3 2 4 to fix the printed circuit board 3 2 , as shown in the fifteenth figure. In the case of the insulative front section 3 3 , a buckle block 3 3 2 is formed on each of the two sides of the insulating front section 3 3 , and the two sides of the metal shell 31 respectively form a buttonhole 3 i with respect to the position of the buckle block 3 3 2 , and the buckle block 3 3 2 is buckled. The inner side of the front edge of the insulating front section 3 3 is divided into a positioning block 3 3 3, and the metal outer casing 3 1 _ surface is formed with a slit relative to the positioning block 3 3 3 respectively. 3 χ 7 'The positioning block 3 3 3 is embedded in the slit 3 1 7 . Referring to the sixteenth and seventeenth aspects of the present invention, the fourth embodiment of the retractable us B flash drive is similar to the second implementation described above, and is a metal casing, a printed circuit. The plate 12 and the metal seat i 4 are formed, the insulating seat 2 of the second embodiment is replaced by a metal m 4 , and the metal seat; the shrapnel on the l 4 is a separate structure, and the front and rear ends thereof have The flange 14 51 is fastened to the metal seat 4 - it can be interlocked with the groove body 4a; and the slider 14 4 is also formed on the elastic piece 45. Since the metal seat 14 is a metal material and cannot provide the clamping force of the printed circuit board 2, the printed circuit board 12 is slid and adhered to the metal seat i 4 and is slid by the slider 4 4 in the metal casing 丄1. The slot 113 moves and moves together to achieve the telescopic function. Referring to FIG. 18 and FIG. 19, a fifth embodiment of a telescopic u SB flash drive is similar to the foregoing third embodiment, which is composed of a metal casing 31 and a printed circuit board. 3. The difference between the insulating front portion 3 3 and the insulating rear portion 34 is that the printed circuit board 32 is not a memory-packed integrated package circuit but is composed of a plurality of ICs. The circuit of the conventional memory function is 3 2 5 , and the front end is a conventional USB plug 3 2 3 a, and other components and operations are the same as the foregoing third embodiment. · In summary, the telescopic U S B flash drive provided by this creation is in full compliance with the patent requirements and is submitted in accordance with the law. BRIEF DESCRIPTION OF THE DRAWINGS The first figure represents an exploded view of the first embodiment of the present creation, the second figure represents another angular exploded view of the first embodiment of the present creation, and the second figure represents the first embodiment of Feng Creative. The combination diagram, the fourth diagram represents the combination diagram of the first embodiment of the present invention, but the USB interface circuit and the front section protrude from the metal casing, the fifth diagram represents the top view of the first embodiment of the present creation, and the eighth diagram represents the red The figure is a cross-sectional view along AA and an action diagram, and the seventh diagram represents an exploded view of the second embodiment of the present creation. The figure represents an exploded view of the printed circuit board and the insulating seat of the second embodiment of the second embodiment. Nine diagrams represent the combination diagram, diagram of the second embodiment of the creation, but the USB interface circuit and the tenth diagram of the front section represent the combination of the two realities.
伸出金屬外殼， D 圖代表本創作第一種實施例之組合圖，但勾體伸出金屬外殼， 第十一圖代表本創作第三種實施例之分解圖， 第十三圖代表本創作第三種實施例之組合圖， 第十四圖代表本卿第三種實細之組合圖，但U s B介面電路及金屬 遮蔽罩伸出金屬外殼， 第十五圖代表本創作帛三種實施例之剖面視目， 第十六圖代表本創作第四種實施例之分解圖， 第十七圓代表本創作第四種實施例之缸合圖， 第十八圖代表本創作第五種實施例之分解圖， 第十九圖代表本創作第五種實施例之組合圖， 第二十圖代表-種習知的伸縮式U s B隨身碟之分解圖。 【主要元件符號說明】 金屬外殼11 印刷電路板12 US B介面電路121 積體封裝1;路1 2 2 絕緣座1 3 前開口 1 1 1 後開口 1 12 滑槽1 1 3 第一定位扎114 第一定位扎115 透孔1 1 6 第三定位札117 本體部131 前段部13 2 凹陷空間13 3 滑塊1 3 4 M440569 彈片1 35 卡制塊13 6 缺角1 37 勾體138 缺口 1 3 9 金屬外殼3 1 前開口 31 1 後開口3 12 滑槽3 1 3 第一定位扎314 第二定位扎315 扣孔3 1 6 切口 3 1 7 印刷電路板32 USB介面電路3 21 積體封裝電路3 2 2 金屬遮蔽罩3 2 3 扣槽3 2 4 絕緣前段部3 3 開孔3 3 1 扣塊3 3 2 定位塊3 3 3 絕緣後段部3 4 凹陷空間3 41 滑塊3 4 2 彈片3 4 3 卡制塊344 勾扣體3 4 5 外殼9 1 滑道9 2 電路板9 3 T型滑塊9 4 第一定位孔911 第二定位孔912 金屬座1 4 彈片1 4 5 凸緣1451 槽體1 4 a 滑塊1 4 4 插頭3 2 3 a 電路3 2 5 13Extending the metal casing, the D diagram represents the combination of the first embodiment of the creation, but the hook body extends out of the metal casing, the eleventh figure represents an exploded view of the third embodiment of the creation, and the thirteenth figure represents the creation. The combination diagram of the third embodiment, the fourteenth figure represents the combination of the third real detail of the present, but the U s B interface circuit and the metal shield cover the metal casing, and the fifteenth figure represents the three implementations of the present invention. The cross-sectional view of the example, the sixteenth figure represents an exploded view of the fourth embodiment of the present creation, the seventeenth circle represents the cylinder diagram of the fourth embodiment of the creation, and the eighteenth figure represents the fifth implementation of the creation. An exploded view of the example, the nineteenth figure represents a combination of the fifth embodiment of the present creation, and the twentyth figure represents an exploded view of a conventional telescopic U s B flash drive. [Main component symbol description] Metal case 11 Printed circuit board 12 US B interface circuit 121 Integrated package 1; Road 1 2 2 Insulation base 1 3 Front opening 1 1 1 Rear opening 1 12 Chute 1 1 3 First positioning tie 114 First positioning bar 115 through hole 1 1 6 third positioning 117 117 body portion 131 front portion 13 2 recessed space 13 3 slider 1 3 4 M440569 shrapnel 1 35 card block 13 6 notch 1 37 hook body 138 notch 1 3 9 Metal case 3 1 Front opening 31 1 Rear opening 3 12 Chute 3 1 3 First positioning bar 314 Second positioning bar 315 Button hole 3 1 6 Notch 3 1 7 Printed circuit board 32 USB interface circuit 3 21 Integrated package circuit 3 2 2 Metal shield 3 2 3 Buckle 3 2 4 Insulation front section 3 3 Opening 3 3 1 Buckle 3 3 2 Positioning block 3 3 3 Insulation rear section 3 4 Recessed space 3 41 Slider 3 4 2 Spring 3 4 3 Card block 344 Hook body 3 4 5 Housing 9 1 Slide 9 2 Circuit board 9 3 T-type slider 9 4 First positioning hole 911 Second positioning hole 912 Metal seat 1 4 Spring 1 4 5 Flange 1451 Slot 1 4 a Slider 1 4 4 Plug 3 2 3 a Circuit 3 2 5 13