1290905 (1) 九、發明說明 【發明所屬之技術領域】 本發明係關於諸如電扶梯及移動式走道之乘客輸送 器，更明確地關於確保移動階的準確導引及導軌於右及左 方向的定位準確性之乘客輸送器。 【先前技術】 於諸如電扶梯及移動式走道之乘客輸送器中’數個乘 客搭乘在其上之移動階係藉由階鏈串聯連接的。移動階沿 著導輥附接至其上的導軌而行進，導輥分別地滾動在導軌 上。 圖]3及1 4顯示乘客輸送器的實例。附皆階1之第一 導輥2及第二導輥3分別地滾動在第一對右及左導軌4及 第二對右及左導軌5上。 第一導輥2係形成以使不會與自第一導軌4的平坦滾 動表面向上突起之垂直壁4a接觸。因此，沒有導塊附接 至第一導輥2的側表面。 一對右及左支撐構件6L及6R分別地支撐第一及第 二導軌4及5。 這些支撐構件6L及6R係固定在主框架8L及8R 上，且與水平延伸於右及左方向的連接構件7相互連接。 該對右及左支撐構件6L及6R的每一者僅有一個用 於固定第一導軌4於其上之固定部。 當該對右及左支撐構件6 L及6 R被組裝時，在右及 -4- 1290905 (2) 左主框架8L及8R的完成之後，支撐構件6L及6R 著右及左方向的中央線對稱定位，然後以螺栓及螺帽 至主框架8 L及8 R。 一對串聯連接數個階]之階鏈9係架構如所謂的 器鏈。這些階鏈9包含外連結板9a、內連結板9b、 連接板9 a及9 b之連接軸、及可旋轉支撐在連接軸 輥。在這些輥中，由亦即，亦作爲連接軸的水平支 1 a的階1的水平支撐軸丨a所支撐之輥作爲第一導輥： 付附接在各別階1的兩橫側表面1 b上之導塊1 1 在一對右及左側護板1 0L及]OR的內表面上，因此 位於階1於右及左方向。 於圖1 5及1 6所示的乘客輸送器的另一實例中， 轉支撐在階1上之第一及第二導輥1 2及1 3分別地滾 一對右及左導軌14、15及16上。 附接在第一導輥1 2的外側表面上之導塊1 2 a滑 導軌1 4的垂直壁1 4 a上及導軌1 6的垂直壁1 6 a，使 ]設定位於右及左方向。 串聯連接該數個階1之階鏈架構如所謂的輥鏈 如同第一導輥1 2，輥鏈2 2的連結板2 2 a不具滾動在 1 4及1 6上的輥。導輥1 2分開地安裝在階1的水平 軸]a上。 一對右及左支撐構件1 7 L及1 7 R支撐該對右及 軌]4、] 5及1 6。支撐構件1 7L及]7R係固定在主 1 8的縱向構件]9及水平樑2 0上。導軌]4、] 5及： 係繞 栓緊 輸送 用於 上之 撐軸 ? 0 滑動 設定 可旋 動在 動在 得階 22 〇 導軌 支撐 左導 框架 6的 -5- 1290905 (3) 每一者係僅在單一固定邰附接在右及左支撐構件]7 L及 1 7R 上。 於圖〗3及1 4所示之乘客輸送器中，配置在每一階1 的右飞則及左表面]b上之導塊1 1沿著該對右及左側護板 1 0L及1 〇R的內表面而滑動，使得階1設定位於右及左方 向。 因爲該對右及左側護板1 0L及1 0R的每一者不可能 製造如連續單條的板，側護板1 〇 L及1 0 R具有接縫。因 此，每當導塊1 1滑動在接縫上時，碰擊聲被產生。 爲了防止導輥2接觸導軌4的垂直壁4 a，該對右及 左導軌4必須以大尺寸精確度設定位於右及左方向。因 此，這是製造此種乘客輸送器所消耗之時間及勞力。 另一方面，於圖15及16所示之乘客輸送器中，配置 在導輥1 2的外側表面上之導塊1 2 a沿著導軌1 4的垂直壁 14a與導軌16的垂直壁16a滑動，使得階1設定位於右 及左方向。 然後，該對右及左導軌1 2必須以大尺寸精確度設定 位於右及左方向。因此，這是製造此種乘客輸送器所消耗 之時間及勞力。 【發明內容】 因此，本發明的目的提供一種乘客輸送器，其確保移 動階的準確導引及導軌的容易設定位於右及左方向，同時 免除習知技術的以上缺點。 - 6 - 1290905 (4) 爲了達到以上目的，依據申請專利範圍第1項之乘客 輸送器包含：一階鏈，其係循環地延伸且連接數個階，乘 客可搭乘在該階上；水平支撐軸，階鏈係連接至該水平支 撐軸’該水平支撐軸係堅固地固定至每一階且延伸於右及 左方向；階支撐輥，藉由水平支撐軸可旋轉地支撐；及一 對右及左導軌，階支撐輥滾動在該導軌上·，其中該對右及 左導軌的一者具有垂直壁，其用來防止階支撐輥移位於右 及左方向；及階支撐輥具有導塊在其側表面上，該側表面 可滑動地接觸垂直壁。 該對右及左導軌的一者具有一對右及左垂直壁，該垂 直壁自其水平滾動表面向上突起以夾住階支撐輥於其間於 其旋轉軸線的方向，及 階支撐輥具有一對導塊於其側表上，該導塊滑動地接 觸該對右及左垂直壁。 該對右及左導軌的另一者未具有用於允許階支撐輥於 右及左方向的位移之垂直壁。 階鏈係架構如所謂具有輥之輸送器鏈，該輥滾動在一 對右及左導軌上且可旋轉地支撐在連接輸送器鏈的連結板 之軸上。在此些輥中，支撐在水平支撐軸上的輥供作爲階 支撐輥。 除了階支撐輥之外不具導塊。 階鏈可架構如所謂的輥鏈’其由其連結板連接水平支 撐軸，該輥鏈不具有可旋轉支撐在分別連接外連結板及內 連結板的每一鏈軸上。 -7- 1290905 (5) 乘客輸送器另包含用於支撐該對右及左導軌之支撐構 件，及該支撐構件具有第一固定部，當階鏈架構如輸送器 鏈時，導軌係固定在該第一固定部；及第二固定部，當階 鏈架構如輥鏈時’導軌係固定在該第二固定部。 於依據本發明之乘客輸送器中，導輥係藉由配置在一 對右及左導軌的一者上之垂直壁而設置定位。因此，一對 右及左導軌的僅一者必須以嚴格定位精確度設定位於右及 左方向，然而一對右及左導軌的另一者不需要此種嚴格定 位精確度於右及左方向。結果，製造乘客輸送器所需的時 間可被縮短。 因爲階的移動可藉由右及左導軌的一者確定地導引， 無碰擊聲被產生，碰擊聲可能由階及側護板所造成的。 導輥係夾在該對配置在導軌上之右及左垂直壁之間， 藉此，導輥的導引精確度可更進一步加強，以及當導引導 輥時的強度可被改善。 配置在導輥的側表面上之導塊防止導輥的側表面的磨 損，因此長時間保持導輥用之增強導引精確度。 因爲導塊僅配置在由階的水平支撐軸所支撐的導輥 上，製造成本可被降低。 再者，用於支撐該對右及左導軌之支撐構件具有第一 固定部及第二固定部，具有垂直壁之導軌可被固定在第一 固定部及第二固定部上。因此，支撐構件可共同使用於階 鏈架構如輸送器鏈及輥鏈之各別例子中。結果，乘客輸送 器的製造成本可被降低。 -8 - 1290905 (6) 【實施方式】 以下參考圖1至1 2說明依據本發明之乘客輸送器的 實施例。於以下說明中，具有相同結構及相同功能之部件 具有相同參考號碼，且，重複說明將省略。 參考圖1至5，說明依據本發明的第一實施例之乘客 輸送器，其中其階鏈係形成如所謂的輸送器鏈。 圖1所示的乘客輸送器係電扶梯I 〇 〇。於圖1中，上 部係向前運轉側，而下部係向後運轉側。 階1包括一對右及左第一導軌（階支撐輥）3 0 L及 3 0 R，其係藉由延伸於右及左方向的水平支撐軸1 a可旋轉 支撐的；及一對右及左第二導輥3、3，其係藉由延伸於 右及左方向的水平支撐軸3 a可旋轉支撐的。 圖1中右側上之第一導軌3 0 R滾動在右側的第一導軌 4 1上。圖1中左側上之第一導軌3 0 L滾動在左側的第一 導軌4 2上。 同樣地，此對右及左第二導輥3分別地滾動在一對右 及左第二導輥4 3上。 第一導軌41及42與第二導輥43係由一對右及左導 軌支撐構件5 0 L及5 0 R所支撐。 如放大的圖2所示，右第一導軌4 ]具有一對連續地 配置在滾動表面4 1 a上之右及左垂直壁4 ] b ’第一導軌 3 0R滾動在滾動表面4 1 a上。在滾動表面4 ] a附近’第一 導軌4 1具有大致u形橫截面。 冬 1290905 (7) 第一導軌4 1係藉由墊片44及螺栓螺帽A〗而栓 螺栓孔5 1 a。螺栓孔5丨a係形成在第一固定部上，第 定部定位在導軌支撐構件5 〇R的支撐部5 }的左部份」 向後運轉側上的第一導軌4 2係栓緊至導軌支撐 5 0的支fe部5 6。向後運轉側上的第一導軌4 2係相同 前運轉側上的第一導軌4 2的第一導軌4 2。 如圖4及5所示，連接此數個階1的階鏈9形成 謂的輸送器鏈。階鏈9具有分別可旋轉支撐在連接外 板9 a及內連結板9 b的每一軸上之輥子3 5。輥子3 5 動在第一導軌41的滾動表面4 ]a上。 在此些輥子3 5中，由階1的水平支撐軸1 a所支 車昆子3 5供作爲第一導軌3 0 L或3 0 R。 如圖2所示，導塊3 1係配置在右第一導軌.3 0R 表面上。導塊3 1係沿著右第一導軌4 1的垂直壁4 1 b 壁表面滑動，使得階1設定位於右及左方向。 另一方面，因爲左第一導軌30L不具有垂直壁， 3 0L未設定位於右及左方向。因此，沒有導塊配置在 一導軌30L的側表面上。 如圖2及3所示，因爲此對右及左第二導輥3、 自第二導輥4 3的垂直壁4 3 a隔開於右及左方向，第 輥3、3未設定位於右及左方向。 此對右及左導軌支撐構件50L及50R係藉由壓 鋼板形成。右導軌支撐構件5 0R包括用於支撐右第一 4 1的支撐部5 ]及5 5、及用於支撐右第二導輥4 3之 緊至 一固 c 構件 如向 如所 連結 亦滾 撐之 的側 的內 導軌 左第 3係 二導 製厚 導軌 支撐 -10- 1290905 (8) 部53及54。左導軌支撐構件5〇L包括用於支撐右第一導 軌4 2的支撐部5 2及5 6、及用於支撐左第二導輕4 3之支 撐部5 3及5 4。 用於支撐右第一導軌4 1之支撐部5 1及5 5係相對更 寬地形成於右及左方向，且，具有當階鏈架構如上述的輸 送器鏈9時，用於附接右第一導軌4 1在其左側上之第一 固定部，及具有當階鏈架構如下述的輥鏈時，用於附接右 第一導軌4 1在其右側上之第二固定部。 同樣地，用於支撐左第一導軌42之支撐部52及56 係相對更寬地形成於右及左方向，且，具有當階鏈架構如 上述的輸送器鏈9時，用於附接左第一導軌4 2在其右側 上之第一固定部，及具有當階鏈架構如下述的輥鏈時，用 於附接左第一導軌4 2在其左側上之第二固定部。 參考圖6至9，說明依據本發明的第二實施例之乘客 輸送器，其中其階鏈係架構如所謂的輥鏈。 圖6所示的乘客輸送器係電扶梯1 1 〇。於圖6中，上 階1係定位在向前運轉側上，而下階1係定位在向後運轉 側上。 階1包括一對右及左第一導軌（階支撐輥）60L及 6R，其係藉由延伸於右及左方向的水平支撐軸1 a可旋轉 支撐的；及一對右及左第二導輥3、3，其係藉由延伸於 右及左方向的水平支撐軸3 a可旋轉支撐的。 圖6右側上之第一導軌6 R滾動在右側的第一導軌4 1 上。圖6左側上之第一導軌6 L滾動在左側的第一導軌4 2 -11 - 1290905 Ο) 上。 同樣地，此對右及左導輥3滾動在此對右及左第二導 輥43上。 因爲階鏈係架構如輥鏈22，此對右及左第一導軌60L 及6 R係比圖1所示的電扶梯1 〇 〇的此對右及左第一導軌 3 〇 L及3 0 R定位更外面。 依此，如放大的圖7所示，右第一導軌4 1係由墊片 44及螺栓螺帽45而栓緊至螺栓孔5 1 b。螺栓孔5 ] b係形 成在定位在導軌支撐構件5 0 R的支撐部5 1的右部份（外 側）上之第二固定部上。 向後運轉側的第一導軌42係以完全相同方式而栓緊 至螺栓孔5 1 b。 如圖8所示，佐第一導軌4 2係固定在定位在導軌支 撐構件5 0L的支撐部5 2的左部份（外側）上之第二固定 部上。 左第一導軌4 2係固定在支撐部5 2上，使得第一導軌 4 2的垂直壁部4 2 a向上延伸。 向後運轉側的第一導軌4 2係以完全相同方式而固定 在支撐部5 2上。 如圖9所示，連接此數個階1的階鏈係架構如輥鏈 22。輥鏈22包括與支撐第—導軌6〇l及6R的階1的水 平支撐軸1 a嚙合之連結板2 2 a、外連結板2 2 b及內連結. 板2 2 c。外連結板2 2 b及內連結板2 2 c具有繭形，且延伸 在遲結板2 2 a之間。安裝在連接此些連結板的軸上之輥係 -12- 1290905 (10) 自第一導軌4 1及4 2的滾動表面而向上隔開。 換言之，此對右及左第一導軌6 0 L及6 R不是輥鏈2 2 的構成元件，而是與其分開的階支撐輥。 如放大的圖7所示，導塊係配置在右第一導軌6 R的 側表面上。導塊6 1係沿著右第一導軌4 1的垂直壁4 1 b的 內壁表面而滑動，使得階1設定位於右及左方向。 另一方面，如放大的圖8所示，因爲作第一導軌6 0 L 係自左第一導軌4 2的垂直壁部4 2 a隔開於右及左方向， 第一導軌60L未設定位於右及左方向。因此，沒有導塊係 配置在左第一導軌60L的側表面上。 如上述，於依據本發明的乘客輸送器1 〇 〇及1 1 〇中， 此對右及左第一導軌4 1及4 2及此對右及左導軌支撐構件 5 0L及5 0R可共同使用於階鏈架構如輸送器鏈9及輥鏈 2 2的各別例子中。 以下參考圖1 〇至1 2說明此對右及左導軌支撐構件 5 〇L及5 0R及各別導軌41、42及43的組裝過程。 當階鏈架構如輸送器鏈9時之側構架單元7 0 L的組裝 過程係參考圖1 〇說明。於左側之此對右及左導軌支撐構 件5 0L及5〇R中，導軌42係橋接在支撐部52及56之 間，且，導軌4 3係橋接在支撐部5 3及5 4之間。然後， 導軌4 2及4 3被熔接以固定在導軌支撐構件5 0 L及5 0 R 上。 如圖10(c)所示，左第一導軌42係固定在第一固 定部上，使得垂直壁部4 2 a係嚙合於支撐部5 2的縱槽 -13- 1290905 (11) 5 2a。 如放大的圖8所示，當階鏈係架構如輥鏈2 2時，左 第一導軌42係沿著左導軌支撐構件5 0L的角固定，使得 第一導軌4 2的垂直壁部4 2 a向上延伸。 如圖1 1所示，在組成構架之左主樑7 1及7 1被安裝 之後，左側構架單元7 0 L係相對於主樑7 ]及7 1而定位 的，且係固定在其上。 再者，在組成右構架之右主樑7 2及7 2被安裝之後， 右側構架單元70R係相對於主樑72及72而定位的，且係 固定在其上。 其後，如圖1 2所示，左側構架單元70L係經由水平 樑7 3而連接至右側構架單元7 〇 R藉此完成此構架。 最後’導軌支撐構件5 0 R的支撐部5 1及5 5係固定在 第一固定部上，其中右第一導軌4丨係設定位於右及左方 向。 亦即，於作爲依據本發明的電扶梯1 〇 〇及1 1 〇之乘客 輸送器中，右第一導軌30R及6 OR係藉由此對配置在右 第一導軌41上的垂直壁41b及41b而定位的，然而左第 一導軌30L及6 0L未設定位於右及左方向。 因此，僅右第一導軌4 1必須以嚴格定位精確度設定 位於右及左方向，然而左第一導軌4 2不需要此種嚴格定 位精確度於右及左方向。結果，製造電扶梯丨〇 〇及〗丨〇所 需的時間可被縮短。 右第一導軌30R及6 0R係夾於此對右及左垂直壁4 ] b - 14、 1290905 (12) 於第一導軌30 R及60R的旋轉軸線的方向。因此，不 階】的導引精確度可被增強，而且亦於右及左方向的階 的導引強度可被改善。 配置在各別右第一導軌3 0 R及6 0 R的側表面上之 塊3 1及6 ]係沿著第一導軌4 1的此對垂直壁4 1 b及4 而滑動。因此，沒有碰擊聲，產生於電扶梯1 〇 〇及n ◦ 然而此種碰擊聲，產生於圖1 3所示的習知電扶梯，因 配置在階]上之導塊Π碰擊此對側護板1 〇 L及]Q R。 者，階1的增強導引精確度可長時間保持，以及防止右 —導軌30R及60R的側表靣的磨損。 再者，導塊3 1及6 1僅配置在由階1的水平支撐 la所支撐之第一導軌30R及6 0R上，因此製造成本可 低。 用於支撐右第一導軌4 1之右導軌支撐構件5 的 撐部51及55分別地具有第一固定部及第二固定部。用 支撐左第一導軌4 2之左導軌支撐構件5 〇 L的支撐部5 2 5 6分別地具有第一固定部及第二固定部。因此，此對 軌支撐構件50L及5〇R可共同使用於階鏈架構如輸送 鏈9及輥鏈2 2之各別例子中。結果，製造成本可被 低。 此對右及左導軌支撐構件5 0 L及5 0 R與導軌4 1、 及4 3係整體地組裝以形成此對右及左側構架單元7 〇乙 7 0 R，然後，側構架單元7 〇 L及7 0 R係相互組合。因此 製造電扶梯1 〇〇及1 1 〇所需的時間可顯著地縮短，以及 僅 導 lb 爲 再 第 軸 降 支 於 及 導 器 降 4 2 及 5 改 - 15- 1290905 (13) 善各別導軌4 1、4 2及4 3的定位精確度。 雖然以上已詳細地說明依據本發明之乘客輸送器的實 施例，本發明未受限於此，且，各種變化及修改係自然可 能的。 例如，雖然電扶梯1 〇〇及〗丨〇係示範於以上實施例， 本發明當然可應用至移動式走道。 【圖式簡單說明】 圖1係簡要地顯示依據本發明的乘客輸送器之前截面 圖，其中其階鐽彤成如輸送器鏈； 圖2係圖1所不之右導輥的放大前截面圖； 圖3保圖1所不的左導|昆的放大前截面圖； 圖4係輸送器鏈的輥的前截面圖； 圖5係第一導輥及右側上的輸送器鏈的前截面圖； 圖6係簡要地顯示依據本發明的乘客輸送器之前截面 圖，其中其階鏈形成如輥鏈； 圖7係圖6所示之右導輥的放大前截面圖； 圖8係圖6所示的左導輥的放大前截面圖； 圖9係第一導輥及右側上的輸送器鏈的側視圖； 圖1 0 ( a )係顯示導軌支撐構件及導軌的組裝過程之 前視圖； 圖〗〇 ( b )係顯示導軌支撐構件及導軌的組裝過程之 側視圖， 圖1 0 ( c )保導軌支撐構件及導軌的主要部件的組裝 -16- 1290905 (14) 過程之放大前視圖； 圖 Π ( a )係顯示導軌支撐構件及主框架的組裝過程 之前視圖； 圖]】（b )係顯示導軌支撐構件及主框架的組裝過程 之側視圖； 圖1 2係完成架構的前視圖； 圖1 3係簡要地顯示習知乘客輸送器之前截面圖，其 中其階鏈形成如輸送器鏈； 圖1 4係圖1 3所示的右導輥的放大前截面圖； 圖]5係簡要地顯示習知乘客輸送器之前截面圖’其 中其階鏈形成如輥鏈；及 圖16係圖]5所示的右導輥的放大前截面圖。 [主要元件符號說明】 1階 1 a水平支撐軸 1 b橫側表面 2第一導輥 3 a水平支撐軸 3第二導輥 4右及左導軌 4a 垂直壁 5 右及左導軌 6L、6R右及左支撐構件 -17- 1290905 (15) 7連接構件 8 L、8 R主框架 9 階鏈 9 a外連結板 9 b內連結板 10L、10R右及左側護板 11導塊 1 2 第一導輥 1 2 a 導塊 ]3第二導輥 14、15、16 右及左導軌 14a 垂直壁 1 6 a 垂直壁 1 7 L、1 7 R 右及左支撐構件 1 8 主框架 ]9 縱向構件 2 0 水平樑 22 輥鏈 2 2 a連結板 22b外連結板 22c內連結板 30L、30R右及左第一導軌 3 1導塊 3 5 輥子 -18 1290905 (16) 4 1第一導軌 4 1 a 滾動表面 4 1 b右及左垂直壁 4 1 A右第一導軌 42第一導軌 42b橫壁部 4 2 a垂直壁部 4 3右及左第二導輥 43a 垂直壁 44 墊片 4 5 螺栓螺帽 5 0 L ' 5 0 R導軌支撐構件 5 0導軌支撐構件 5 1支撐部 5 1 a螺栓孔 5 1 b 螺栓孔 5 2支撐部 5 3、5 4支撐部 5 5支撐部 5 6支撐部 6 0 L、6 0 R右及左第一導軌 6 1導塊 70L側構架單元 7 〇 R側構架單元 -19 1290905 (17) 71左主樑 72 右主樑 7 3 水平樑 1 0 0 電扶梯 1 1 〇 電扶梯1290905 (1) Nine, the invention belongs to the technical field of the invention. The present invention relates to passenger conveyors such as escalators and mobile walkways, more specifically regarding ensuring accurate guidance of the moving steps and the guide rails in the right and left directions. Passenger conveyor for positioning accuracy. [Prior Art] In a passenger conveyor such as an escalator and a mobile walkway, the moving order on which a plurality of passengers board is connected in series by a step chain. The moving steps travel along the guide rails to which the guide rollers are attached, and the guide rollers are respectively rolled on the guide rails. Figures 3 and 14 show examples of passenger conveyors. The first guide roller 2 and the second guide roller 3 attached to the first step 1 are respectively rolled on the first pair of right and left guide rails 4 and the second pair of right and left guide rails 5. The first guide roller 2 is formed so as not to come into contact with the vertical wall 4a which protrudes upward from the flat rolling surface of the first guide rail 4. Therefore, no guide block is attached to the side surface of the first guide roller 2. A pair of right and left support members 6L and 6R support the first and second guide rails 4 and 5, respectively. These support members 6L and 6R are fixed to the main frames 8L and 8R, and are connected to the connecting members 7 extending horizontally in the right and left directions. Each of the pair of right and left support members 6L and 6R has only one fixing portion for fixing the first guide rail 4 thereon. When the pair of right and left support members 6 L and 6 R are assembled, after the completion of the right and -4- 1290905 (2) left main frames 8L and 8R, the support members 6L and 6R have the center lines in the right and left directions. Position symmetrically, then bolt and nut to main frame 8 L and 8 R. A pair of cascades connected in series of several stages] is a so-called chain. These step chains 9 include a connecting shaft of the outer connecting plate 9a, the inner connecting plate 9b, the connecting plates 9a and 9b, and a rotatably supported connecting roller. In these rolls, the roller supported by the horizontal support shaft 丨a, which is also the step 1 of the horizontal branch 1 a of the connecting shaft, serves as the first guide roller: the two lateral sides attached to the respective steps 1 The guide block 1 1 on 1 b is on the inner surfaces of the pair of right and left side guards 10L and ]OR, and thus is located in the right and left directions of the step 1. In another example of the passenger conveyor shown in FIGS. 15 and 16, the first and second guide rollers 1 2 and 13 supported on the step 1 respectively roll a pair of right and left guide rails 14, 15 And 16 on. The guide block 1 2 a attached to the outer side surface of the first guide roller 12 is placed on the vertical wall 14a of the slide rail 14 and the vertical wall 16a of the guide rail 16 so that the setting is in the right and left directions. The chain structure of the plurality of steps 1 is connected in series, such as a so-called roll chain, like the first guide roll 12, and the web 2 2 a of the roll chain 2 2 does not have rolls rolled on the 14 and 16. The guide rolls 12 are separately mounted on the horizontal axis]a of the step 1. A pair of right and left support members 1 7 L and 17 7 support the right and rails 4, 5 and 16. The support members 1 7L and 7R are fixed to the longitudinal members 9 of the main 18 and the horizontal beams 20 . Rails]4,] 5 and: Tighten the bobbin for the upper support shaft? 0 Sliding setting can be rotated in the step 22 〇 Guide rail support left guide frame 6-5- 1290905 (3) Each Attached to the right and left support members 7 L and 1 7R only in a single fixed jaw. In the passenger conveyor shown in Figures 3 and 14, the guide block 1 1 disposed on the right and left surfaces of each stage 1 along the right and left side guards 10L and 1 〇 The inner surface of R slides so that the step 1 setting is in the right and left directions. Since it is impossible for each of the right and left side guards 10L and 10R to manufacture a single continuous board, the side guards 1 〇 L and 10R have seams. Therefore, whenever the guide block 1 1 slides over the seam, a click sound is generated. In order to prevent the guide roller 2 from contacting the vertical wall 4a of the guide rail 4, the pair of right and left guide rails 4 must be set in the right and left directions with a large dimensional accuracy. Therefore, this is the time and labor required to manufacture such a passenger conveyor. On the other hand, in the passenger conveyor shown in Figs. 15 and 16, the guide block 1 2 a disposed on the outer side surface of the guide roller 12 slides along the vertical wall 14a of the guide rail 14 and the vertical wall 16a of the guide rail 16 So that the order 1 setting is in the right and left directions. Then, the pair of right and left rails 1 2 must be set in the right and left directions with a large dimensional accuracy. Therefore, this is the time and labor consumed to manufacture such a passenger conveyor. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a passenger conveyor that ensures accurate guidance of the movement steps and easy setting of the guide rails in the right and left directions while eliminating the above disadvantages of the prior art. - 6 - 1290905 (4) In order to achieve the above objective, the passenger conveyor according to item 1 of the patent application scope includes: a first-order chain which is cyclically extended and connected in several stages, on which passengers can ride; horizontal support a shaft, a step chain coupled to the horizontal support shaft 'the horizontal support shaft is firmly fixed to each step and extends in the right and left directions; the step support roller is rotatably supported by the horizontal support shaft; and a pair of right And a left rail, the step support roller is rolled on the rail, wherein one of the pair of right and left rails has a vertical wall for preventing the step support roller from moving in the right and left directions; and the step support roller has a guide block The side surface slidably contacts the vertical wall on its side surface. One of the pair of right and left rails has a pair of right and left vertical walls that protrude upward from their horizontal rolling surface to sandwich the step support roller in the direction of their axis of rotation, and the step support roller has a pair The guide block is on its side surface, the guide block slidingly contacting the pair of right and left vertical walls. The other of the pair of right and left rails does not have a vertical wall for allowing displacement of the step support rollers in the right and left directions. The step chain architecture is a so-called conveyor chain with rollers that roll on a pair of right and left rails and are rotatably supported on the shaft of the web that connects the conveyor chains. In these rolls, the rolls supported on the horizontal support shaft are provided as step support rolls. There is no guide block other than the step support roller. The step chain may be constructed such as a so-called roll chain which is connected by its web to a horizontal support shaft which does not have rotatably supported on each of the chain shafts which respectively connect the outer web and the inner web. -7- 1290905 (5) The passenger conveyor further includes a supporting member for supporting the pair of right and left rails, and the supporting member has a first fixing portion, and when the step chain structure is a conveyor chain, the rail is fixed at the rail The first fixing portion; and the second fixing portion are fixed to the second fixing portion when the step chain structure is a roller chain. In the passenger conveyor according to the present invention, the guide rollers are positioned by being disposed on a vertical wall of one of the pair of right and left rails. Therefore, only one of the pair of right and left rails must be positioned in the right and left directions with strict positioning accuracy, whereas the other of the pair of right and left rails does not require such strict positioning accuracy in the right and left directions. As a result, the time required to manufacture the passenger conveyor can be shortened. Since the movement of the steps can be surely guided by one of the right and left guide rails, no impact sound is generated, and the impact sound may be caused by the steps and the side guards. The guide roller is sandwiched between the pair of right and left vertical walls disposed on the guide rail, whereby the guiding precision of the guide roller can be further enhanced, and the strength when the guide roller is guided can be improved. The guide block disposed on the side surface of the guide roller prevents wear of the side surface of the guide roller, so that the guide roller is used for enhanced guiding precision for a long time. Since the guide block is disposed only on the guide roller supported by the horizontal support shaft of the step, the manufacturing cost can be lowered. Further, the support member for supporting the pair of right and left rails has a first fixing portion and a second fixing portion, and the rail having the vertical wall can be fixed to the first fixing portion and the second fixing portion. Therefore, the support members can be used in common in the respective examples of the step chain structure such as the conveyor chain and the roller chain. As a result, the manufacturing cost of the passenger conveyor can be reduced. -8 - 1290905 (6) [Embodiment] An embodiment of a passenger conveyor according to the present invention will be described below with reference to Figs. In the following description, components having the same structure and the same functions have the same reference numerals, and repeated description will be omitted. Referring to Figures 1 to 5, a passenger conveyor according to a first embodiment of the present invention is illustrated in which the step chain is formed as a so-called conveyor chain. The passenger conveyor shown in Figure 1 is an escalator I 〇 〇. In Fig. 1, the upper portion is on the forward running side and the lower portion is on the rearward running side. Step 1 includes a pair of right and left first guide rails (step support rollers) 3 0 L and 3 0 R which are rotatably supported by horizontal support shafts 1 a extending in the right and left directions; and a pair of right and The left second guide rolls 3, 3 are rotatably supported by horizontal support shafts 3a extending in the right and left directions. The first rail 3 0 R on the right side in Fig. 1 is rolled on the first rail 4 1 on the right side. The first rail 310L on the left side in Fig. 1 rolls on the first rail 4 2 on the left side. Similarly, the pair of right and left second guide rollers 3 are respectively rolled on a pair of right and left second guide rollers 43. The first guide rails 41 and 42 and the second guide roller 43 are supported by a pair of right and left rail support members 510L and 505R. As shown in enlarged view of Fig. 2, the right first rail 4] has a pair of right and left vertical walls 4 continuously disposed on the rolling surface 41a. b' The first rail 3 0R rolls on the rolling surface 4 1 a . The first guide rail 4 1 has a substantially u-shaped cross section near the rolling surface 4 a. Winter 1290905 (7) The first rail 4 1 is bolted to the bolt hole 5 1 a by the spacer 44 and the bolt nut A. The bolt hole 5丨a is formed on the first fixing portion, and the first portion is positioned at the left portion of the support portion 5} of the rail supporting member 5R"". The first rail 42 on the rearward running side is fastened to the guide rail Supporting the part 5 of the 50. The first rails 4 2 on the rearward running side are the first rails 4 2 of the first rails 4 2 on the same front running side. As shown in Figures 4 and 5, the step chain 9 connecting the plurality of steps 1 forms a conveyor chain. The step chain 9 has rollers 35 which are rotatably supported on each of the shafts connecting the outer panel 9a and the inner web 9b, respectively. The roller 35 moves on the rolling surface 4]a of the first guide rail 41. In these rollers 35, the car washes 3 5 supported by the horizontal support shaft 1 a of the stage 1 are supplied as the first rails 3 0 L or 3 0 R. As shown in FIG. 2, the guide block 31 is disposed on the surface of the right first rail .300R. The guide block 3 1 slides along the wall surface of the vertical wall 4 1 b of the right first rail 4 1 such that the step 1 setting is in the right and left directions. On the other hand, since the left first guide rail 30L does not have a vertical wall, 30L is not set in the right and left directions. Therefore, no guide block is disposed on the side surface of a guide rail 30L. As shown in FIGS. 2 and 3, since the right and left second guide rollers 3 are separated from the vertical wall 43a of the second guide roller 43 in the right and left directions, the first rollers 3, 3 are not set to the right. And the left direction. The pair of right and left rail support members 50L and 50R are formed by a steel plate. The right rail support member 50R includes a support portion 5 for supporting the right first portion 41 and 5 5, and a support member for supporting the right second guide roller 43 to a solid c member, such as to be rolled as if connected The inner guide rails on the left side of the left third system are guided by thick guide rails -10- 1290905 (8) sections 53 and 54. The left rail support member 5〇L includes support portions 5 2 and 56 for supporting the right first guide rail 4 2 and support portions 5 3 and 5 4 for supporting the left second guide light 4 3 . The support portions 5 1 and 5 5 for supporting the right first guide rail 4 1 are formed relatively wider in the right and left directions, and have a chain link architecture such as the conveyor chain 9 described above for attaching the right The first fixing portion of the first rail 4 1 on the left side thereof and the second fixing portion for attaching the right first rail 4 1 on the right side thereof when the step chain structure is a roller chain as described below. Similarly, the support portions 52 and 56 for supporting the left first guide rail 42 are formed relatively wider in the right and left directions, and have a chain link architecture such as the conveyor chain 9 described above for attaching the left The first fixing portion 4 2 has a first fixing portion on the right side thereof, and has a second fixing portion on the left side of the left first guide rail 4 2 when the step chain structure is a roller chain as described below. Referring to Figures 6 through 9, a passenger conveyor in accordance with a second embodiment of the present invention will be described in which the chain structure is a so-called roller chain. The passenger conveyor shown in Fig. 6 is an escalator 1 1 〇. In Fig. 6, the upper stage 1 is positioned on the forward running side and the lower stage 1 is positioned on the rearward running side. Step 1 includes a pair of right and left first guide rails (step support rollers) 60L and 6R rotatably supported by horizontal support shafts 1 a extending in the right and left directions; and a pair of right and left second guides The rollers 3, 3 are rotatably supported by horizontal support shafts 3a extending in the right and left directions. The first rail 6 R on the right side of Fig. 6 rolls on the first rail 4 1 on the right side. The first rail 6 L on the left side of Fig. 6 is rolled on the first rail 4 2 -11 - 1290905 左侧) on the left side. Similarly, the pair of right and left guide rolls 3 are rolled on the pair of right and left second guide rolls 43. Because of the step chain structure such as the roller chain 22, the pair of right and left first guide rails 60L and 6R are the right and left first guide rails 3 〇L and 3 0 R of the escalator 1 图 shown in FIG. 1 . Positioning is even more outside. Accordingly, as shown in Fig. 7 enlarged, the right first guide rail 4 1 is fastened to the bolt hole 5 1 b by the spacer 44 and the bolt nut 45. The bolt hole 5] b is formed on the second fixing portion which is positioned on the right portion (outer side) of the support portion 51 of the rail supporting member 505R. The first guide rail 42 on the rearward running side is bolted to the bolt hole 5 1 b in exactly the same manner. As shown in Fig. 8, the first guide rail 42 is fixed to a second fixing portion which is positioned on the left portion (outer side) of the support portion 52 of the rail supporting member 50L. The left first guide rail 42 is fixed to the support portion 52 such that the vertical wall portion 42 a of the first guide rail 42 extends upward. The first rail 42 on the rearward running side is fixed to the support portion 52 in exactly the same manner. As shown in Fig. 9, the step chain structure such as the roller chain 22 is connected to the plurality of steps 1. The roller chain 22 includes a web 2 2 a, an outer web 2 2 b and an inner joint. The board 2 2 c is engaged with the horizontal support shaft 1 a supporting the step 1 of the first rails 6〇1 and 6R. The outer web 2 2 b and the inner web 2 2 c have a dome shape and extend between the retardation plates 2 2 a. The roller system -12- 1290905 (10) mounted on the shaft connecting the webs is spaced upward from the rolling surfaces of the first rails 4 1 and 4 2 . In other words, the pair of right and left first guide rails 60 L and 6 R are not constituent elements of the roller chain 2 2 but are stepped support rollers separated therefrom. As shown in an enlarged view of Fig. 7, the guide block is disposed on the side surface of the right first guide rail 6 R . The guide block 61 is slid along the inner wall surface of the vertical wall 4 1 b of the right first rail 4 1 such that the step 1 setting is in the right and left directions. On the other hand, as shown in Fig. 8 which is enlarged, since the first rail 6 0 L is separated from the vertical wall portion 4 2 a of the left first rail 4 2 in the right and left directions, the first rail 60L is not set to be located. Right and left directions. Therefore, no guide block is disposed on the side surface of the left first guide rail 60L. As described above, in the passenger conveyor 1 〇〇 and 1 1 依据 according to the present invention, the pair of right and left first guide rails 4 1 and 4 2 and the pair of right and left rail support members 50L and 50R can be used together. In the respective examples of the chain structure such as the conveyor chain 9 and the roller chain 2 2 . The assembly process of the right and left rail support members 5 〇L and 50R and the respective guide rails 41, 42 and 43 will be described below with reference to Figs. The assembly process of the side frame unit 70L when the chain structure is such as the conveyor chain 9 is described with reference to Fig. 1 . In the right and left rail support members 50L and 5R on the left side, the guide rails 42 are bridged between the support portions 52 and 56, and the guide rails 43 are bridged between the support portions 5 3 and 5 4 . Then, the guide rails 4 2 and 4 3 are welded to be fixed to the rail supporting members 5 0 L and 50R. As shown in Fig. 10(c), the left first guide rail 42 is fixed to the first fixing portion such that the vertical wall portion 42a is engaged with the longitudinal groove - 13 - 1290905 (11) 5 2a of the support portion 52. As shown in enlarged FIG. 8, when the step chain structure is such as the roller chain 2 2, the left first guide rail 42 is fixed along the corner of the left rail support member 50L such that the vertical wall portion 4 of the first guide rail 4 2 a extends upwards. As shown in Fig. 11, after the left main beams 7 1 and 7 1 constituting the frame are mounted, the left side frame unit 70 L is positioned relative to the main beams 7 ] and 7 1 and fixed thereto. Further, after the right main beams 7 2 and 7 2 constituting the right frame are mounted, the right side frame unit 70R is positioned relative to the main beams 72 and 72 and fixed thereto. Thereafter, as shown in Fig. 12, the left side frame unit 70L is connected to the right side frame unit 7 〇 R via the horizontal beam 73 to thereby complete the frame. Finally, the support portions 5 1 and 5 of the "rail support member 505" are fixed to the first fixed portion, wherein the right first guide rail 4 is set in the right and left directions. That is, in the passenger conveyors of the escalators 1 and 1 1 according to the present invention, the right first rails 30R and 6 OR are thereby disposed on the vertical wall 41b disposed on the right first rail 41 and Positioned 41b, however, the left first guide rails 30L and 60L are not set in the right and left directions. Therefore, only the right first guide rail 4 1 must be positioned in the right and left directions with strict positioning accuracy, whereas the left first guide rail 4 2 does not require such strict positioning accuracy in the right and left directions. As a result, the time required to manufacture the escalator 丨〇 丨〇 and 丨〇 can be shortened. The right first guide rails 30R and 60R are clamped to the right and left vertical walls 4] b - 14, 1290905 (12) in the direction of the rotation axes of the first rails 30 R and 60R. Therefore, the guidance accuracy of the non-order can be enhanced, and the guidance strength of the steps in the right and left directions can be improved. The blocks 3 1 and 6 disposed on the side surfaces of the respective right first rails 3 0 R and 60 R are slid along the pair of vertical walls 4 1 b and 4 of the first rail 4 1 . Therefore, there is no impact sound, which is generated on the escalator 1 〇〇 and n ◦ However, this kind of impact sound is generated in the conventional escalator shown in Fig. 13, because the guide block arranged on the stage Π hits this The opposite side guards 1 〇L and ]QR. The enhanced guiding accuracy of the step 1 can be maintained for a long time and the wear of the side surfaces of the right-rails 30R and 60R is prevented. Furthermore, the guide blocks 3 1 and 6 1 are disposed only on the first rails 30R and 60R supported by the horizontal support la of the step 1, so that the manufacturing cost can be low. The struts 51 and 55 for supporting the right rail support member 5 of the right first rail 4 1 have a first fixing portion and a second fixing portion, respectively. The support portions 5 2 5 6 supporting the left rail support members 5 〇 L of the left first guide rails 4 2 respectively have a first fixing portion and a second fixing portion. Therefore, the pair of rail supporting members 50L and 5R can be commonly used in the respective examples of the step chain structure such as the conveyor chain 9 and the roller chain 22. As a result, the manufacturing cost can be lowered. The pair of right and left rail support members 5 0 L and 5 0 R are integrally assembled with the rails 4 1 and 4 3 to form the pair of right and left frame units 7 7 B 7 0 R, and then the side frame unit 7 〇 L and 70 R are combined with each other. Therefore, the time required to manufacture the escalator 1 1 and 1 1 可 can be significantly shortened, and only the lb is reduced to the second axis and the guide is lowered 4 2 and 5 is changed - 15- 1290905 (13) Positioning accuracy of the guide rails 4 1, 4 2 and 43. Although the embodiment of the passenger conveyor according to the present invention has been described in detail above, the present invention is not limited thereto, and various changes and modifications are naturally possible. For example, although the escalator 1 and the above are exemplary of the above embodiments, the present invention can of course be applied to a mobile walkway. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view schematically showing a front side of a passenger conveyor according to the present invention, wherein the steps are as a conveyor chain; FIG. 2 is an enlarged front cross-sectional view of the right guide roller of FIG. Figure 3 is a front cross-sectional view of the left guide of the Fig. 1; Fig. 4 is a front cross-sectional view of the roller of the conveyor chain; Fig. 5 is a front cross-sectional view of the conveyor chain of the first guide roller and the right side; Figure 6 is a front cross-sectional view schematically showing the passenger conveyor according to the present invention, wherein the step chain is formed as a roller chain; Figure 7 is an enlarged front cross-sectional view of the right guide roller shown in Figure 6; Figure 8 is Figure 6 The enlarged front cross-sectional view of the left guide roller is shown; Figure 9 is a side view of the first guide roller and the conveyor chain on the right side; Figure 10 (a) shows the front view of the assembly process of the rail support member and the guide rail; 〇(b) is a side view showing the assembly process of the rail support member and the guide rail, Fig. 10 (c) Assembly of the main components of the rail support member and the guide rail - 16- 1290905 (14) enlarged front view of the process; (a) shows the front view of the assembly process of the rail support member and the main frame; (b) is a side view showing the assembly process of the rail support member and the main frame; Fig. 1 2 is a front view of the completed structure; Fig. 13 is a front cross-sectional view schematically showing a conventional passenger conveyor, wherein the step chain is formed as Figure 14 is an enlarged front cross-sectional view of the right guide roller shown in Figure 13; Figure 5 is a simplified cross-sectional view of a conventional passenger conveyor, in which the step chain is formed as a roller chain; Figure 16 is an enlarged front cross-sectional view of the right guide roller shown in Fig. 5. [Main component symbol description] 1st order 1 a horizontal support shaft 1 b lateral side surface 2 first guide roller 3 a horizontal support shaft 3 second guide roller 4 right and left rail 4a vertical wall 5 right and left rails 6L, 6R right And left support member -17- 1290905 (15) 7 connecting member 8 L, 8 R main frame 9 step chain 9 a outer connecting plate 9 b inner connecting plate 10L, 10R right and left side guard 11 guide block 1 2 first guide Roller 1 2 a Guide block] 3 second guide roller 14, 15, 16 Right and left rail 14a Vertical wall 1 6 a Vertical wall 1 7 L, 1 7 R Right and left support member 1 8 Main frame] 9 Longitudinal member 2 0 Horizontal beam 22 Roll chain 2 2 a Connecting plate 22b Outer connecting plate 22c Inner connecting plate 30L, 30R Right and left first rail 3 1 Guide block 3 5 Roller-18 1290905 (16) 4 1 First rail 4 1 a Rolling Surface 4 1 b right and left vertical wall 4 1 A right first rail 42 first rail 42b transverse wall portion 4 2 a vertical wall portion 4 3 right and left second guide roller 43a vertical wall 44 spacer 4 5 bolt nut 5 0 L ' 5 0 R rail support member 50 rail support member 5 1 support portion 1 1 a bolt hole 5 1 b bolt hole 5 2 support portion 5 3, 5 4 support portion 5 5 support portion 5 6 support portion 6 0 L, 6 0 R right and The first guide rail 61 side of the frame unit 70L side frame unit 7 billion R -19129090573 right master level 72 (17) 71 of the left main girder beam 100 escalator escalator 11 billion