九、發明說明： 【發明所屬之技術領域】 本發明係關於一種滾珠滑執，尤指一種裝設有滾 珠架定位裝置的滾珠滑執。 【先前技術】 為減小滑軌轨體間的滑動摩擦力，很多滑執在其 軌體間設有包括複數滾珠的滾珠架，該等滾珠分別裝 設於滾珠架上的對應裝設孔而排列成行，以使不同軌 體間的相對滑動更為順暢，同時減小相互摩擦對滑執 的損傷。如三段式滑軌的内軌與中軌之間、中軌與外 執之間，都可設置滾珠架，該等滾珠架可以和插入其 内的軌體同步滑動。惟，當不同執體分離、相應的軌 體需重新插入對應的滾珠架時，如果滾珠架未定位， 相應執體則難以準確快速地插入，且在插入過程中可 能損壞滾珠架。 【發明内容】 鐾於以上内容，有必要提供一種裝設有滚珠架定 位裝置的滾珠滑轨。 一種滚珠滑執，包括一第一軌、一第二軌、一設 於第一執和第二執之間的滾珠架及一具彈性的定位 件，該滾珠架和第一執可滑動地收容於第二軌，該定 位件包括一裝設端及一卡扣端，該裝設端裝設於該第 1322863 .. 二軌的遠離兩端部處，該卡扣端設有至少—扣片， . 該定位件的卡扣片可卡抵於該滚珠架的後端邊緣而 將該滾珠架定位於該第二軌。 相較習知技術，該滾珠架可被該定位件定位於該 第二軌，從而方便該第一執的插入，且不易損壞滾珠 架。 【實施方式】 • 請參閱圖1，本發明滾珠滑軌的較佳實施方式包 括一滚珠架20、一第一執40、一套設於第一執40的 第二軌60、一套設於第二軌60的第三執70和一滾珠 架定位裝置，滾珠架20設於第一轨40和第二執60 之間，用於輔助第一執40相對於第二執60的滑動。 該滾珠架定位裝置用於將滾珠架20在第二軌60上定 位，其包括一定位件80。 請繼續參閱圖2,定位件80為塑件或由其他彈性 0 材料製成，其主體為條狀，包括一裝設端82、一彈性 部84及一卡扣端86。裝設端82上開設兩裝設孔820; 彈性部84比裝設端82略窄，並由一略向下彎折的連 接片840連接於裝設端82，彈性部84略向上彎折地 連接於連接片840,並於遠離裝設端82的端部一側設 一略向上彎折的凸片842，凸片842的兩邊分別設一 傾斜的抵片844 ;卡扣端86彎折連接於彈性部84遠 離裝設端82的一端，並與裝設端82平行，卡扣端86 7 1322863 的自由端垂直向上延伸兩卡扣片860,每—^扣片860 包括一斜邊862及一垂直邊864。 滾珠架20包括一腹板22及兩側臂24，兩側臂 24分別自腹板22的兩側邊向同一方向彎折。腹板22 包括兩側端220、222及一凸出板224，凸出板224連 接於兩側端220、222之間並平行偏移。侧端220於 靠近其後端部處開設一穿孔226，定位件80的卡扣片 860可對應卡入穿孔226。兩側臂24分別裝設有複數 滾珠240。 第一執40包括一腹板42及兩側臂44，兩側臂 44分別自腹板42的兩側邊同向彎折。每一侧臂44向 相對側臂44的方向凹陷，從而在側臂44的外側形成 一沿第一軌40縱長方向的滑道。 第二軌60用於收容滾珠架20和第一執40,其包 括一腹板62及兩側臂64，兩側臂64分別自腹板62 的兩側邊同向彎折。腹板62包括兩側端620及一凸 出板624，凸出板624連接於兩側端620之間並平行 偏移。腹板62對應定位件80的卡扣端86及彈性部 84開設一“凸”字形開口 626,開口 626設於腹板62 上且遠離腹板62兩端部，開口 626的較寬部分設於 凸出板624，較窄部分設於腹板62的一侧端620。腹 板62的凸出板624底面靠近開口 626的前端設兩固 定柱628 (如圖3所示），用於穿過定位件80的裝設 孔820以將定位件80固定於第二軌60。每一側臂64 8 1322863 , 的内側彎折形成一内滑道640。第二執60的前端裝設 一擋止件66。擋止件66的兩側臂660分別收容於側 臂64的内滑道640内，並於每一側臂660的後端形 成一擋止面。 第三執70用於收容第二執60,其包括一腹板72 及兩側臂74，兩側臂74分別自腹板72的兩側邊同向 彎折，第二執60可滑動地收容於第三執70的兩側臂 74之間。第二執60和第三軌70分別對應設有滑道以 ® 利於二者之間的相對滑動，第二執60和第三軌70的 對應滑道之間還可以設置滾珠架或其他助滑結構。 請繼續參閱圖3至圖5，安裝時，將第二執60的 凸出板624的固定柱628分別穿過定位件80的裝設 孔820，從而將定位件80的裝設端82固定於第二執 60。此時，定位件80的卡扣片860及凸片842分別 穿過第二執60的開口 626而外露於腹板62，定位件 • 80的卡扣端86則收容於第二執60的開口 626並與第 二執60的凸出板624平齊。將滾珠架20的前端插入 第二執60的後端，向前滑動滾珠架20而將其裝入第 二執60,滾珠架20的滾珠240分別接觸第二轨60的 側臂64的内滑道640並在其中向前滑動。滾珠架20 滑入過程中，其前端部先後抵頂定位件80的卡扣片 860的斜邊862和凸片842的抵片844而下壓卡扣端 86，定位件80的彈性部84發生彈性變形；滚珠架20 繼續前滑時，凸片842將一直接觸滚珠架20的側端 9 220,直至滚珠架20的前端抵頂擋止件66的側臂660 而被擋止；此時，凸片842與滾珠架20的穿孔226 對正，滾珠架20越過卡扣片860，定位件80在彈性 部84的回復力作用下恢復原狀，卡扣片860的垂直 邊864卡扣於滾珠架20的後端邊緣而將滾珠架20定 位，凸片842穿過滾珠架20的穿孔226而外露於滾 珠架20。 將第一軌40的後端插入擂止件66的兩側臂660 之間，並推動其向後滑動以縮入第二執60，由於擋止 件66的側臂660高於滾珠架20的前端，第一軌40 很容易插入滾珠架20而不會抵頂以至損壞滾珠架 20。當第一軌40插入滾珠架20後，第一軌40的滑 道分別接觸滾珠架20的滾珠240,該等滾珠240可輔 助第一執40在第二軌60内的滑動。繼續推動第一軌 40縮入，直至第一軌40的一條側臂44的後端抵頂並 下壓凸片842而使定位件80的彈性部84發生彈性變 形，帶動卡扣端86的卡扣片860下移而將滾珠架20 解鎖。繼續推動第一軌40，滾珠架20的側端220將 取代第一軌40的側臂44下壓凸片842，並保持凸片 842的受力狀態。 當然，根據實際需要，本發明中的定位件80也 可以其他方式固定於第二執60，如卡鉤卡扣、鉚釘鉚 合等。 綜上所述，本發明符合發明專利要件，爰 1322863 ； 依法提出專利申請。惟，以上所述者僅為本發 明之較佳實施例，舉凡熟悉本案技藝之人士， 在爰依本發明精神所作之等效修飾或變化，皆 應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 圖1係本發明滾珠滑執較佳實施方式的立體分解 圖。 • 圖2係本發明滾珠滑執較佳實施方式的定位件另 一方向的放大圖。 圖3係本發明滾珠滑執較佳實施方式的定位件和 第二軌的組裝圖。 圖4係本發明滚珠滑執較佳實施方式的立體組合 圖，其中的滾珠架處於定位狀態。 圖5係本發明滾珠滑執較佳實施方式的立體組合 _ 圖，其中的滾珠架處於解鎖狀態。 【主要元件符號說明】 滾珠架 20 腹板 22 側端 220 側端 222 凸出板 224 穿孔 226 側臂 24 滚珠 240 第一執 40 腹板 42 側臂 44 第二執 60 腹板 62 侧端 620 11 凸出板 624 開口 固定柱 628 侧臂 内滑道 640 擋止件 侧臂 660 第三軌 腹板 72 側臂 定位件 80 裝設端 裝設孔 820 彈性部 連接片 840 凸片 抵片 844 卡扣端 卡扣片 860 斜邊 垂直邊 864IX. INSTRUCTIONS OF THE INVENTION: TECHNICAL FIELD The present invention relates to a ball slide, and more particularly to a ball slide which is provided with a ball stand positioning device. [Prior Art] In order to reduce the sliding friction between the rail rails, many slides are provided with a ball cage including a plurality of balls between the rail bodies, and the balls are respectively mounted on corresponding mounting holes on the ball rack. Arranged in a row to make the relative sliding between the different rail bodies smoother, while reducing the damage of the mutual friction to the slippery. For example, between the inner rail and the middle rail of the three-stage slide rail, and between the middle rail and the outer rail, ball cages can be arranged, and the ball cages can slide synchronously with the rail body inserted therein. However, when the different bodies are separated and the corresponding rails need to be reinserted into the corresponding ball holders, if the ball holders are not positioned, the corresponding body is difficult to insert accurately and quickly, and the ball holder may be damaged during the insertion process. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a ball slide rail equipped with a ball holder positioning device. A ball slide, comprising a first rail, a second rail, a ball rack disposed between the first and second grips, and a resilient positioning member, the ball holder and the first slidably receiving In the second rail, the positioning member includes a mounting end and a latching end, and the mounting end is disposed at a distance from the two ends of the 1322863.. two-track, the buckle end is provided with at least a buckle The snap tab of the positioning member can be engaged with the rear end edge of the ball holder to position the ball holder on the second rail. Compared with the prior art, the ball holder can be positioned on the second rail by the positioning member, thereby facilitating the insertion of the first holder and not easily damaging the ball holder. [Embodiment] Please refer to FIG. 1. A preferred embodiment of the ball slide rail of the present invention includes a ball holder 20, a first handle 40, a set of second rails 60 disposed on the first handle 40, and a set of The third holder 70 of the second rail 60 and a ball holder positioning device are disposed between the first rail 40 and the second holder 60 for assisting the sliding of the first holder 40 relative to the second holder 60. The ball holder positioning device is for positioning the ball holder 20 on the second rail 60, which includes a positioning member 80. Referring to FIG. 2, the positioning member 80 is a plastic member or made of other elastic material. The main body is strip-shaped and includes a mounting end 82, a resilient portion 84 and a latching end 86. Two mounting holes 820 are defined in the mounting end 82; the elastic portion 84 is slightly narrower than the mounting end 82, and is connected to the mounting end 82 by a slightly downwardly bent connecting piece 840, and the elastic portion 84 is slightly bent upward. The connecting piece 840 is connected to the end of the end portion away from the mounting end 82, and a slightly upwardly bent tab 842 is disposed. The two sides of the tab 842 are respectively provided with an inclined abutting piece 844; the latching end 86 is bent and connected. The elastic portion 84 is away from the end of the mounting end 82 and parallel to the mounting end 82. The free end of the latching end 86 7 1322863 extends vertically upwardly from the two latching pieces 860, and each of the locking pieces 860 includes a beveled edge 862 and A vertical side 864. The ball holder 20 includes a web 22 and side arms 24, and the side arms 24 are bent in the same direction from both side edges of the web 22, respectively. The web 22 includes two side ends 220, 222 and a raised plate 224 that is coupled between the two side ends 220, 222 and offset in parallel. The side end 220 defines a through hole 226 near the rear end thereof, and the locking piece 860 of the positioning member 80 can be correspondingly engaged with the through hole 226. The two arms 24 are respectively provided with a plurality of balls 240. The first handle 40 includes a web 42 and side arms 44 that are bent from the sides of the web 42 in the same direction. Each of the side arms 44 is recessed in the direction of the opposite side arms 44, so that a slide path along the longitudinal direction of the first rail 40 is formed outside the side arms 44. The second rail 60 is for receiving the ball holder 20 and the first holder 40. The second rail 60 includes a web 62 and two side arms 64. The two side arms 64 are bent in the same direction from the side edges of the web 62, respectively. The web 62 includes two side ends 620 and a raised plate 624 that is coupled between the two side ends 620 and offset in parallel. The web 62 defines a "convex" opening 626 corresponding to the latching end 86 of the positioning member 80 and the elastic portion 84. The opening 626 is disposed on the web 62 and away from both ends of the web 62. The wider portion of the opening 626 is disposed at The protruding plate 624 has a narrower portion provided at one side end 620 of the web 62. The bottom surface of the protruding plate 624 of the web 62 is disposed near the front end of the opening 626 with two fixing posts 628 (shown in FIG. 3) for passing through the mounting holes 820 of the positioning member 80 to fix the positioning member 80 to the second rail 60. . The inner side of each side arm 64 8 1322863 is bent to form an inner slide 640. A stopper 66 is attached to the front end of the second handle 60. The two side arms 660 of the stopper 66 are respectively received in the inner slide 640 of the side arm 64, and a stop surface is formed at the rear end of each side arm 660. The third handle 70 is configured to receive the second handle 60, and includes a web 72 and two side arms 74. The two side arms 74 are bent in the same direction from the two sides of the web 72, and the second handle 60 is slidably received. The third arm 70 is between the two arms 74. The second handle 60 and the third rail 70 respectively have corresponding slides to facilitate relative sliding between the two, and a ball holder or other slippery can be disposed between the corresponding slides of the second handle 60 and the third rail 70. structure. Referring to FIG. 3 to FIG. 5 , during installation, the fixing posts 628 of the protruding plate 624 of the second handle 60 are respectively passed through the mounting holes 820 of the positioning member 80 , thereby fixing the mounting end 82 of the positioning member 80 to the mounting end 82 of the positioning member 80 . The second is 60. At this time, the snap tab 860 and the tab 842 of the positioning member 80 are respectively exposed through the opening 626 of the second handle 60 to be exposed to the web 62, and the latching end 86 of the positioning member 80 is received in the opening of the second handle 60. 626 is flush with the raised plate 624 of the second handle 60. The front end of the ball holder 20 is inserted into the rear end of the second holder 60, the ball holder 20 is slid forward to be loaded into the second holder 60, and the balls 240 of the ball holder 20 respectively contact the inner side of the side arm 64 of the second rail 60. The track 640 slides forward in it. During the sliding process of the ball holder 20, the front end portion thereof abuts against the oblique side 862 of the locking piece 860 of the top positioning member 80 and the abutting piece 844 of the tab 842, and the buckle end 86 is pressed down, and the elastic portion 84 of the positioning member 80 occurs. Elastic deformation; when the ball holder 20 continues to slide forward, the tab 842 will always contact the side end 9 220 of the ball holder 20 until the front end of the ball holder 20 abuts against the side arm 660 of the top stopper 66; The tab 842 is aligned with the through hole 226 of the ball holder 20, and the ball holder 20 passes over the locking piece 860. The positioning member 80 is restored to the original shape by the restoring force of the elastic portion 84, and the vertical side 864 of the locking piece 860 is buckled to the ball holder. The rear end edge of the 20 is positioned to position the ball holder 20, and the tab 842 is exposed through the through hole 226 of the ball holder 20 to be exposed to the ball holder 20. The rear end of the first rail 40 is inserted between the side arms 660 of the stop member 66, and is urged to slide rearwardly to retract into the second handle 60, since the side arm 660 of the stopper 66 is higher than the front end of the ball holder 20. The first rail 40 is easily inserted into the ball holder 20 without damaging the top to damage the ball holder 20. When the first rail 40 is inserted into the ball holder 20, the slides of the first rail 40 respectively contact the balls 240 of the ball holder 20, which can assist the sliding of the first handle 40 within the second rail 60. Continue to push the first rail 40 to retract until the rear end of one of the side arms 44 of the first rail 40 abuts and presses the tab 842 to elastically deform the elastic portion 84 of the positioning member 80 to drive the card of the buckle end 86. The cleat 860 is moved down to unlock the ball holder 20. Continuing to push the first rail 40, the side end 220 of the ball holder 20 will press the side arm 44 of the first rail 40 to depress the tab 842 and maintain the force of the tab 842. Of course, according to actual needs, the positioning member 80 of the present invention can also be fixed to the second holder 60 in other manners, such as hook hooks, rivet rivets, and the like. In summary, the present invention meets the requirements of the invention patent, 爰 1322863; However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art of the present invention should be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective exploded view of a preferred embodiment of the ball slipper of the present invention. Fig. 2 is an enlarged view of another direction of the positioning member of the preferred embodiment of the ball slipper of the present invention. Figure 3 is an assembled view of the positioning member and the second rail of the preferred embodiment of the ball slipper of the present invention. Figure 4 is a perspective assembled view of a preferred embodiment of the ball slide of the present invention in which the ball holder is in a positioned state. Figure 5 is a perspective view of a preferred embodiment of the ball slide of the present invention, wherein the ball cage is in an unlocked state. [Main component symbol description] Ball holder 20 web 22 side end 220 side end 222 protruding plate 224 perforation 226 side arm 24 ball 240 first 40 web 42 side arm 44 second 60 web web 62 side end 620 11 Projection plate 624 Opening fixing column 628 Side arm inner slide 640 Stop member side arm 660 Third rail web 72 Side arm positioning member 80 Mounting end mounting hole 820 Elastic portion connecting piece 840 Tab piece 844 Buckle End snap 860 beveled vertical edge 864