200804154 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種玻璃基板之輸送設備，且特別是 有關於一種應用於玻璃基板之輸送設備中的導輪組。 【先前技術】 隨著光學科技與半導體技術的進步，液晶顯示裝置 (Liquid Crystal Display ·，LCD)已廣泛的應用於電子產品顯 Φ 示裝置上。液晶顯示器具有高晝質、體積小、重量輕、低 電壓驅動、低消耗功率及應用範圍廣等優點，故已廣泛的 應用於可攜式電視、行動電話、攝錄放影機、筆記型電腦、 桌上型顯示、以及投影電視等消費性電子或電腦產品 中，成為顯示器的主流。 一般液晶顯示器之主體為液晶面板，其主要是由兩片 玻璃基板以及被封於基板之間的液晶所構成。目前液晶顯 示是以薄膜電晶體（Thin Film Transistor ; TFT)液晶顯示 Φ 器為主，液晶上下兩層玻璃基板主要是用來夾住液晶，下 層基板長有薄膜電晶體，而上層基板則係為一彩色濾光片 (Color filter)。彩色濾光片係在上層基板上形成紅（R)、綠 . (G)、藍（B)三原色之彩色濾光層，以使液晶顯示器呈現出豐 富的顏色圖像。 因此，在液晶顯示器的製造過程中，往往需要在各個 製程中輸送玻璃基板。習知的玻璃基板輸送設備係由滾輪 組及導輪組所組成。其中，上述之滾輪組係彼此間隔一預 定距離設置’玻璃基板即藉由滾輪組的帶動而前進。而導 6 200804154 輪組係設置玻璃基板前進路徑的側邊，以導正玻璃基板。 參照第1A圖及第1B圖，其係繪示習知導輪組的組立圖及 分解圖。由第1A圖及第1B圖可知，習知導輪組係由支架 10、軸心20、導輪30、固定部40及螺絲50所組成。其中， 支架10具有槽孔12於其上。軸心20具有前端部22、位於 前端部22下方之底端部24及位於前端部上方的螺紋部 26。螺紋部26係藉由螺帽60及墊片7〇鎖固於支架1〇上 的槽孔12,而底端部24之外徑係小於前端部“之底面的 外钇。V輪30係套置於底端部24上，並與前端部22之底 面抵接。固定部4G之内面係與導輪3G之底面抵接。而螺 絲50則穿過固定部4〇上的轴孔42，並鎖固於軸心的底 端。 由以上可知，習知導輪組在維修保養時需要拆卸導輪 30下方的螺絲50方能更換導輪30。但因導輪3〇下方的空 間狹窄且施工不易，因此拆卸及更換導輪3Ό往往困難重 重。是故，施工人員往往將整組軸心2〇拆卸，以順利地更 換導輪30。然而，一旦軸心20經拆裝過，軸心20的位置 就需要重新校正，以避免玻璃基板因導輪組的位置不正而 擠壓破碎。綜以上所述，習知導輪組的維修保養相當缺乏 效率且耗時費力，無法滿足使用上的需求。 、因此，如何提供一種導輪組，其可輕易的維修保養， 並在、准修保養後無須重新校正其位置，是液晶顯示器相關 產業的製造業者所殷殷企盼。 【發明内容] 7 200804154 因此本發明的-方面就是在提供一種導輪組，其維修 保養簡便，且在維修保養後無須重新校正其位置。 依照本發明-較佳實施例，一種導輪組係由支架、主 轴、導輪、副軸及扣件組所組成。其中，支架具有一槽孔 於其上。主轴具有貫穿軸心之軸孔、前端部、位於前端部 下方之限位部及位於限位部下方之底端部。前端部係穿設 於支架上的槽孔，而底端部之外徑係小於限位部之底面的 外徑。導輪係套置於底端部上，並與限位部之底面抵接。 副軸係設置於軸孔内，且副軸之底端具有固定部，此固定 部之内面係與導輪之底面抵接。扣件組係鎖固於主轴及副 軸=頂端上，使副軸不致脫離主軸之轴孔，並同時將主轴 之荊端部固定於支架之槽孔中。 更具體地說，上述之扣件組可包含一螺帽及-墊片， 而主軸可具有一主軸螺紋位於其前端部上，用以配合上述 之螺帽及墊片。當螺帽及墊片鎖附於主轴螺紋時，塾片恰 抵住支架及前端部的頂表面，以將主軸之前端部固定於 架之槽孔中D 、 此外，上述之扣件組更可包含一蝴蝶螺絲，而副轴可 -有:副軸螺紋位於沿著副軸的長軸方向並靠近支架之副 ::端’用以配合此蝴蝶螺絲。當蝴蝶螺絲鎖附於副軸螺 Ί ’此蝴蝶螺絲恰抵住上述之螺帽，以固定副轴於主轴 之車由孔中。 門：：修保養本發明之導輪組時，只要將蝴蝶螺絲鬆 “Π轴抽出主軸來更換導輪即可，並不需要在導輪 、乍空間施工，其可大幅節省维修保養所需的時 200804154 間。此外，在維修保養本發明之導輪組時，由於施工人員 僅拆卸導輪組之副軸，而未拆卸安裝於支架上的主軸，故 導輪組的位置在維修保養後不需重新校正即可直接運作。 【實施方式】 為了能夠明確地說明本發明的實施方式，請首先參照 第2圖，其係繪示依照本發明一較佳實施例玻璃基板輸送 設備的上視圖。玻璃基板輸送設備100係由滾輪組110及 導輪組200所組成。其中，上述之滾輪組110係彼此間隔 一預定距離設置，玻璃基板105即藉由滾輪組110的帶動 而前進。而導輪組200係設置玻璃基板105之前進路徑A 的側邊，以導正玻璃基板105。 一併參照第3 A圖及第3B圖，其分別繪示第2圖之導 輪組200的組立圖及分解圖。在此較佳實施例中，導輪組 200係由支架210、主軸220、導輪250、副軸230及扣件 組240所組成。其中，支架210具有一槽孔212於其上。 主軸220具有貫穿軸心之轴孔225、前端部223、位於前端 部223下方之限位部226及位於限位部226下方之底端部 228。前端部223係穿設於支架210上的槽孔212，而底端 部228之外徑係小於限位部226之底面227的外徑。導輪 250係套置於底端部228上，並與限位部226之底面227 抵接。副軸230係設置於轴孔225内，且副軸230之底端 具有固定部232,此固定部232之内面係與導輪250之底面 254抵接。扣件組240係鎖固於主軸220及副轴230之頂端 上，使副軸230不致脫離主軸220之軸孔225，並同時將主 9 200804154 轴220之前端部223固定於支架21〇之槽孔2i2中。 在此實施例中，上述之扣件組24〇包含一螺帽2料及 一塾片246,而主軸220更可具有主軸螺紋224位於主轴 220之前端部223上，用以配合上述之螺帽244及墊片2如。 當螺帽244及墊片246鎖附於主軸螺紋224時，墊片246 恰抵住支架210及前端部223的頂表面，以將主轴22〇之 鈾‘部223固定於支架210之槽孔212中。 更具體地說，扣件組240更可包含一蝴蝶螺絲242。而 田j軸230具有一副軸螺紋234位於沿著副軸230的長軸方 向並罪近支架210之頂端，用以配合蝴蝶螺絲242。當蝴蝶 螺、4 242鎖附於副軸螺紋234時，此蝴蝶螺絲242恰抵住 螺帽244,以固定副軸230於軸孔225中。如此一來，當施 工人員欲更換導輪250時，只需徒手拆卸蝴蝶螺絲242，再 將副軸230抽出，即可更換導輪25〇，並不需要額外手工具 的輔佐。 此外，上述之槽孔212及前端部223均為非圓形狀， 以避免主軸220在槽孔212中自轉。舉例來說，第3B圖之 槽孔212及前端部223係為兩端修圓的矩形。如此一來， 當施工人員鎖固螺帽及墊片時，可直接以手工具來鎖固螺 帽及墊片’而不需要額外的夾具來夾持主軸220，此將使螺 帽及墊片的拆卸與組裝更佳地容易。 更具體地說，上述之前端部223的外徑係小於限位部 226的外徑。如此，當前端部223穿設於槽孔212中時，限 位部226係可抵住支架210，使得主軸220不致繼續穿入槽 孔212 ’其可確保每次拆裝導輪組後，主軸22〇穿入槽孔 200804154 212的深度不變。 在此較佳實施例中，支架210更可具有一螺孔214，其 貫穿支架210的側壁至槽孔212中。而止付螺絲260係鎖 附於螺孔214中而抵住主軸220之前端部223。具體而言， 當施工人員校正本實施例之導輪組時，只要先稍微上緊上 述之螺帽244及墊片246，以調整主轴220的大概位置，接 著再調整止付螺絲260鎖入螺孔214的距離，以微調主軸 220在支架210軸向的位置，最後上緊螺帽244及墊片246200804154 IX. INSTRUCTIONS OF THE INVENTION: TECHNICAL FIELD The present invention relates to a glass substrate transport apparatus, and more particularly to a guide wheel set for use in a transport apparatus for a glass substrate. [Prior Art] With advances in optical technology and semiconductor technology, liquid crystal display devices (LCDs) have been widely used in electronic product display devices. The liquid crystal display has the advantages of high quality, small size, light weight, low voltage driving, low power consumption and wide application range, so it has been widely used in portable TVs, mobile phones, video recorders, and notebook computers. In the consumer electronics or computer products such as desktop displays and projection TVs, it has become the mainstream of displays. Generally, the main body of the liquid crystal display is a liquid crystal panel, which is mainly composed of two glass substrates and a liquid crystal sealed between the substrates. At present, the liquid crystal display is mainly a thin film transistor (TFT) liquid crystal display Φ device, the upper and lower glass substrates of the liquid crystal are mainly used to sandwich the liquid crystal, the lower substrate has a thin film transistor, and the upper substrate is A color filter. The color filter forms a color filter layer of three primary colors of red (R), green (G), and blue (B) on the upper substrate, so that the liquid crystal display exhibits a rich color image. Therefore, in the manufacturing process of a liquid crystal display, it is often necessary to transport a glass substrate in each process. Conventional glass substrate transport equipment consists of a roller set and a guide wheel set. Wherein, the above-mentioned roller sets are spaced apart from each other by a predetermined distance. The glass substrate is advanced by the roller group. The guide 6 200804154 wheel set the side of the glass substrate forward path to guide the glass substrate. Referring to Figures 1A and 1B, there are shown a group diagram and an exploded view of a conventional guide wheel set. As can be seen from Figs. 1A and 1B, the conventional guide wheel set is composed of a bracket 10, a shaft center 20, a guide wheel 30, a fixing portion 40, and a screw 50. Wherein, the bracket 10 has a slot 12 thereon. The shaft center 20 has a front end portion 22, a bottom end portion 24 located below the front end portion 22, and a threaded portion 26 located above the front end portion. The threaded portion 26 is fixed to the slot 12 of the bracket 1 by the nut 60 and the spacer 7〇, and the outer end of the bottom end portion 24 is smaller than the outer surface of the bottom surface of the front end portion. The bottom end portion 24 is placed on the bottom end portion 24 and abuts against the bottom surface of the front end portion 22. The inner surface of the fixing portion 4G abuts against the bottom surface of the guide wheel 3G, and the screw 50 passes through the shaft hole 42 of the fixing portion 4, and It is known that the bottom of the shaft is locked. It can be seen from the above that the conventional guide wheel set needs to disassemble the screw 50 under the guide wheel 30 for maintenance, and the guide wheel 30 can be replaced. However, due to the narrow space under the guide wheel 3〇 and construction It is not easy, so it is often difficult to disassemble and replace the guide wheel 3. Therefore, the constructor often removes the entire set of shafts 2 to smoothly replace the guide wheel 30. However, once the shaft 20 has been disassembled, the shaft 20 The position needs to be re-corrected to avoid the glass substrate being crushed and crushed due to the position of the guide wheel set. In view of the above, the maintenance of the conventional guide wheel set is quite inefficient and time-consuming and unsatisfactory, and cannot meet the demand for use. Therefore, how to provide a guide wheel set that can be easily maintained and It is a manufacturer of the liquid crystal display related industry that does not need to re-correct its position after the repair and maintenance. [Invention] 7 200804154 Therefore, the aspect of the present invention is to provide a guide wheel set which is easy to maintain and maintain. There is no need to recalibrate its position after maintenance. In accordance with a preferred embodiment of the present invention, a guide wheel set is comprised of a bracket, a main shaft, a guide wheel, a countershaft, and a fastener set, wherein the bracket has a slot therein. The main shaft has a shaft hole penetrating through the shaft center, a front end portion, a limiting portion located below the front end portion, and a bottom end portion located below the limiting portion. The front end portion is bored through the bracket and the outer diameter of the bottom end portion The outer diameter of the bottom surface of the limiting portion is smaller than the outer diameter of the bottom portion of the limiting portion. The secondary shaft is disposed in the shaft hole, and the bottom end of the secondary shaft has a fixing portion. The inner surface of the fixing portion abuts against the bottom surface of the guide wheel. The fastener group is locked on the main shaft and the counter shaft = the top end, so that the sub shaft does not get out of the shaft hole of the main shaft, and at the same time, the end portion of the main shaft is fixed to In the slot of the bracket. More The above-mentioned fastener group may include a nut and a gasket, and the spindle may have a spindle thread on the front end portion thereof for engaging the above-mentioned nut and gasket. When the nut and the gasket are attached When the spindle thread is threaded, the cymbal piece abuts against the top surface of the bracket and the front end portion to fix the front end portion of the main shaft to the slot D of the frame, and the above fastener group may further comprise a butterfly screw, and the counter shaft Yes - Yes: The secondary shaft thread is located along the long axis of the secondary shaft and close to the bracket:: end 'for matching the butterfly screw. When the butterfly screw is attached to the secondary shaft screw 'This butterfly screw is just against the above The nut is fixed to the main shaft of the car by the hole. Door: When repairing the guide wheel set of the present invention, as long as the butterfly screw is loosened, the main shaft can be pulled out to replace the guide wheel, and it is not necessary to Guide wheel and concrete space construction, which can greatly save the time required for maintenance and maintenance of 200,804,154. In addition, when repairing the guide wheel set of the present invention, since the constructor only disassembles the countershaft of the guide wheel set without disassembling the main shaft mounted on the bracket, the position of the guide wheel set does not need to be recalibrated after maintenance. Can work directly. [Embodiment] In order to clearly explain an embodiment of the present invention, first, referring to Fig. 2, there is shown a top view of a glass substrate conveying apparatus in accordance with a preferred embodiment of the present invention. The glass substrate transfer apparatus 100 is composed of a roller set 110 and a guide wheel set 200. The roller groups 110 are disposed at a predetermined distance from each other, and the glass substrate 105 is advanced by the roller group 110. The guide wheel set 200 is provided with the side of the glass substrate 105 before the path A to guide the glass substrate 105. Referring to Figs. 3A and 3B, respectively, a group diagram and an exploded view of the guide wheel set 200 of Fig. 2 are shown. In the preferred embodiment, the guide wheel set 200 is comprised of a bracket 210, a main shaft 220, a guide wheel 250, a countershaft 230, and a fastener set 240. The bracket 210 has a slot 212 thereon. The main shaft 220 has a shaft hole 225 penetrating the shaft center, a front end portion 223, a stopper portion 226 located below the front end portion 223, and a bottom end portion 228 located below the stopper portion 226. The front end portion 223 is bored through the slot 212 of the bracket 210, and the outer diameter of the bottom end portion 228 is smaller than the outer diameter of the bottom surface 227 of the limiting portion 226. The guide wheel 250 is sleeved on the bottom end portion 228 and abuts against the bottom surface 227 of the limiting portion 226. The counter shaft 230 is disposed in the shaft hole 225, and the bottom end of the counter shaft 230 has a fixing portion 232. The inner surface of the fixing portion 232 abuts against the bottom surface 254 of the guide wheel 250. The fastener set 240 is fastened to the top end of the main shaft 220 and the counter shaft 230 so that the counter shaft 230 does not disengage from the shaft hole 225 of the main shaft 220, and at the same time, the front end portion 223 of the main 9 200804154 shaft 220 is fixed to the groove of the bracket 21 Hole 2i2. In this embodiment, the fastener group 24 includes a nut 2 and a cymbal 246, and the spindle 220 further has a spindle thread 224 located on the front end 223 of the spindle 220 for engaging the nut 244 described above. And gasket 2 as. When the nut 244 and the spacer 246 are locked to the spindle thread 224, the spacer 246 abuts against the top surface of the bracket 210 and the front end portion 223 to fix the uranium portion 223 of the main shaft 22 to the slot 212 of the bracket 210. in. More specifically, the fastener set 240 can further include a butterfly screw 242. The field j-axis 230 has a pair of shaft threads 234 located along the long axis of the countershaft 230 and adjacent to the top end of the bracket 210 for engaging the butterfly screw 242. When the butterfly screw, 4 242 is attached to the countershaft thread 234, the butterfly screw 242 abuts the nut 244 to secure the countershaft 230 in the shaft bore 225. In this way, when the operator wants to replace the guide wheel 250, the butterfly screw 242 is removed by hand, and the counter shaft 230 is pulled out to replace the guide wheel 25〇, and no additional hand tools are needed. In addition, the slot 212 and the front end portion 223 are both non-circular to prevent the spindle 220 from rotating in the slot 212. For example, the slot 212 and the front end portion 223 of Fig. 3B are rectangular with rounded ends. In this way, when the construction personnel lock the nut and the gasket, the nut and the gasket can be directly locked by the hand tool without the need for an additional clamp to clamp the spindle 220, which will make the nut and the gasket The disassembly and assembly is much easier. More specifically, the outer diameter of the front end portion 223 is smaller than the outer diameter of the stopper portion 226. Thus, when the front end portion 223 is inserted into the slot 212, the limiting portion 226 can resist the bracket 210, so that the main shaft 220 does not continue to penetrate the slot 212', which ensures that the spindle is fixed after each assembly and disassembly of the guide wheel set. 22〇 penetrates the slot 200804154 212 to the same depth. In the preferred embodiment, the bracket 210 further has a threaded hole 214 extending through the side wall of the bracket 210 into the slot 212. The stop screw 260 is attached to the screw hole 214 to abut the front end portion 223 of the spindle 220. Specifically, when the constructor corrects the guide wheel set of the embodiment, the nut 244 and the spacer 246 are slightly tightened to adjust the approximate position of the main shaft 220, and then the stop screw 260 is locked into the snail. The distance of the hole 214 to fine-tune the position of the spindle 220 in the axial direction of the bracket 210, and finally tighten the nut 244 and the spacer 246
即可。 此外，主轴220更可具有第一卡合部229位於底端名 228之底端。而固定部232亦可具有第二卡合部卡合方 第一卡合部229’使副軸230不致產生自轉。舉例來說，^ 第3A圖及第3B圖中的第一卡合部229係溝槽，而第二^ 合部233係凸塊。因凸塊卡合於溝槽中，故副軸23〇 ^ 在軸孔225中自轉’因此當施工人員鎖固蝴蝶螺絲242時 :直接以徒手或手工具來鎖固蝴蝶螺絲242,而不需額外, 2具來夾持副軸230,如此可讓拆裝蝴蝶螺絲242變得更篇 容易。 優點由上述本發明較佳實施例可知’應用本發明具有下列 料轉本糾之導輪㈣，只要訂述之蝴焊 再將副軸抽出主轴來更換導輪即 ： 在導輪下方狹窄的空間作f1 卫+而要 所需 的時間。 /、了大幅縮減維修保養 施工人員僅拆 ⑺由於在祕鱗本發k導輪組時， 11 200804154 卸導輪組之副軸及導輪，而未拆却安裝於支架上的主軸， 故導輪組的位置在維修保養後不f重新校正即可直接運 作。 、、⑺顧本發明之導輪組可讓更換導輪所需的停機時 @減少。對本發明之導輪㈣言’更換導輪所需的停機時 間在0.5小時以内，較習知所需的停機時間6小時大幅減少。 ⑷應用本發明之導輪組可讓校正所需的時間減少。對 修 本發明之導輪組而言，校正所需的時間在2小時以内，較 習知所需的5小時大幅減少。此外，習知導輪組的校正失 =亟f，而由於本發明在更換導輪時不需拆卸主轴，故 穩定性高，且校正一次即可一勞永逸。 雖然本發明已以-較佳實施例揭露如上，然其並非用 以限定本發明，任何熟習此技藝者，在不脫離本發明之精 神=範_ ’當可作各種之更動與潤飾，因此本發明之保 遵|&圍當視後附之申請專利範圍所界定者為準。 胃 【圖式簡單說明】 ▲為讓本發明之上述和其他目的、特徵、優點與實施例 旎更明顯易懂，所附圖式之詳細說明如下： 第1A圖係繪示習知導輪組的組立圖。 第1B圖係緣示習知導輪組的分解圖。 第2圖係繪示依照本發明一較佳實施例玻璃基板輸送 設備的上視圖。 第3A圖係繪示第1圖之導輪組200的組立圖。 12 200804154 第3B圖係繪示第1圖之導輪組200的分解圖。 【主要元件符號說明】 10 :支架 12 :槽孔 20 :軸心 22 :前端部 24 :底端部 26 :螺紋部 息 30 :導輪 • 40 :固定部 42 :軸孔 50 :螺絲 60 :螺帽 70 ··墊片 100 :玻璃基板輸送設備 105 :玻璃基板 110 :滾輪組 200 :導輪組 210 :支架 212 :槽孔 214 :螺孔 220 ··主軸 223 :前端部 224 :主軸螺紋 225 :軸孔 2 2 6 ·限位部 — 227 :底面 228 :底端部 229 :第--^合部 230 ··副軸 232 :固定部 2 3 4 ·副轴螺紋 233 ·第二卡合部 240 ··扣件組 • 242 :蝴蝶螺絲 244 :螺帽 246 ··墊片 250 :導輪 254 ·底面 A ·玻璃基板的前進路徑 260 :止付螺絲Just fine. In addition, the main shaft 220 may have a first engaging portion 229 at the bottom end of the bottom end name 228. Further, the fixing portion 232 may have the second engaging portion engaging portion first engaging portion 229' so that the sub-shaft 230 does not rotate. For example, the first engaging portion 229 in FIGS. 3A and 3B is a groove, and the second engaging portion 233 is a bump. Since the bump is engaged in the groove, the countershaft 23〇 rotates in the shaft hole 225. Therefore, when the constructor locks the butterfly screw 242: the butterfly screw 242 is directly locked by a freehand or hand tool without In addition, two pieces are used to clamp the counter shaft 230, which makes the disassembly and assembly of the butterfly screw 242 easier. Advantages According to the preferred embodiment of the present invention described above, the application of the present invention has the following guide wheel (four) for the correction of the material, and as long as the specified welding is performed, the secondary shaft is pulled out of the main shaft to replace the guide wheel: a narrow space under the guide wheel It takes time to do f1 Wei+. /, the drastic reduction of maintenance and construction personnel only dismantled (7) due to the fact that in the secret scales of the k-guide wheel set, 11 200804154 unloading wheel set of the auxiliary shaft and the guide wheel, but did not remove the spindle mounted on the bracket, so the guide The position of the wheel set can be operated directly without recalibration after maintenance. (7) The guide wheel set of the present invention allows the reduction of the required stoppage of the guide wheel. For the guide wheel of the present invention, the downtime required to replace the guide wheel is within 0.5 hours, which is substantially reduced compared to the conventionally required downtime of 6 hours. (4) The use of the guide wheel set of the present invention allows the time required for correction to be reduced. For the steering wheel set of the present invention, the time required for the correction is within 2 hours, which is substantially reduced compared to the conventionally required 5 hours. In addition, the correction of the conventional guide wheel set is lost = 亟f, and since the present invention does not need to disassemble the main shaft when replacing the guide wheel, the stability is high, and the correction can be done once and for all. The present invention has been disclosed in the above-described preferred embodiments, and is not intended to limit the present invention. Any person skilled in the art can make various changes and modifications without departing from the spirit of the present invention. The invention shall be subject to the definition of the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0012] The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood. Group diagram. Figure 1B shows an exploded view of the conventional guide wheel set. Figure 2 is a top plan view of a glass substrate transport apparatus in accordance with a preferred embodiment of the present invention. Fig. 3A is a diagram showing the assembly of the guide wheel set 200 of Fig. 1. 12 200804154 Figure 3B is an exploded view of the guide wheel set 200 of Figure 1. [Main component symbol description] 10 : Bracket 12 : Slot 20 : Axis 22 : Front end 24 : Bottom end 26 : Threaded part 30 : Guide wheel • 40 : Fixing part 42 : Shaft hole 50 : Screw 60 : Screw Cap 70 · Gasket 100: Glass substrate conveying apparatus 105: Glass substrate 110: Roller set 200: Guide wheel set 210: Bracket 212: Slot 214: Screw hole 220 · Spindle 223: Front end portion 224: Spindle thread 225: Shaft hole 2 2 6 · Limiting portion - 227 : bottom surface 228 : bottom end portion 229 : first - - - - - - - - - - - - - - - - - - - - - - - - - - ··Button set • 242 : Butterfly screw 244 : Nut 246 · · Gasket 250 : Guide wheel 254 · Bottom surface A · Glass substrate advance path 260 : Stop screw