1291935. . · (1) 九、發明說明 【發明所屬之技術領域】 本發明關於一種乘客用輸送器’尤關於利用一感應器 感應是否有乘客而自動運作的輸送器。 【先前技術】 傳統上，利用一感應器感應是否有乘客而自動運作的 自動運作型乘客用輸送器爲已知’在這種自動運作型乘客 用輸送器中，感應乘客的感應器一般係設在安裝在入口 / 出口的一光電柱·，若感應器感應不到乘客，乘客用輸送器 不會運作並待·命；若感應器感應有乘客，乘客用輸送器在 額定速度下運作。 不幸地是此型的乘客用輸送器需要在入口 /出口處安 裝光電柱，由於必須確保有安裝空間，某些地方無法使用 乘客用輸送器，或是產生設計問題。 因此，近來提供不使用光電柱的無柱自動運作型乘客 用輸送器，而且企圖以各種技術改良使此種乘客用輸送器 普遍化（日本專利公開案 KOKAI 2 003 - 1 04 68 0和 10-182050號），一般言之，此種無柱自動運作型乘客用輸 送器在內部橫樑或前壁腳板中設有內建的乘客感應器’當 這些感應器感應到乘客，乘客用輸送器在額定速度下運 作。 然而，感應器在乘客進入的方向的感應範圍太寬，使 得即使不使用乘客用輸送器的人經過，感應器也會反應， -4- 1291935, . - * (2) 造成不必要的運作。而且，若多個乘客用輸送器相接，相 鄰的感應器會彼此干涉而造成錯誤運作。 【發明內容】 本發明考慮上述狀況，且目的在於提供一種只有感應 器正確地感應到要使用輸送器之乘客時才會自動運作之輸 送器。 依據本發明一觀點的乘客輸送器之特徵在於包括多個 供乘客站立及離開的階梯，形成在階梯兩端的一對欄杆， 安裝在該對欄杆的入口 /出口附近的乘客感應裝置，其感 應範圍寬度實質上等於該對欄杆之間隔，感應範圍長度係 距離入口 /出口爲一預定距離之中；以及驅動控制器，其 依據乘客感應裝置感應乘客運作來控制階梯之驅動。 依據本發明另一觀點的乘客輸送器之特徵在於包括多 個供乘客站立及離開的階梯，形成在階梯兩端的一對欄 .杆，安裝在該對欄杆的入口 /出口附近的主乘客感應裝 置，其感應範圍寬度實質上等於該對欄杆之間隔，感應範 圍長度係距離入口 /出口爲一預定距離之中，安裝在該對 欄杆的各階梯起始位置之前方的副乘客感應裝置，以及驅 動控制器，其依據主乘客感應裝置以及副乘客感應裝置感 應乘客運作來控制階梯之驅動。 雖然本發明的目的及優點將在以下說明中敘述，且有 部分從說明很明顯可看出’或可藉由實施本發明而習得， 本發明之目的及優點可由以下特別指出的設備及組合實現 -5- (3) 1291935. 及得到。 【實施方式】 現在參照所附圖式說明本發明的實施例 (第一實施例） 圖1爲本發明第一實施例的無柱自動運作型乘客用輸 送器立體外觀圖，圖1所示者爲傾斜一角度之俗稱”電扶 梯”者；圖2爲第一實施例的乘客用輸送器俯視槪示平面 圖；圖3爲第一實施例的乘客用輸送器側視槪示平面圖。 如圖1所示，此實施例的乘客用輸送器11有輸送乘 客用的複數個階梯1 2，以及直立在階梯1 2兩側的一對欄 杆1 3。階梯1 2爲由例如鋁模鑄的履板且在上、下入口 /出 口之間呈無端連結。階梯1 2在入口 /出口之間環形運轉且 被桁架（未示出）支撐在預定角度。 在該對欄杆1 3下方設置在兩側者爲外部橫樑1 4和內 部橫樑1 5，俾將側板1 6夾住，側板1 6是由例如透明玻 璃或壓克力（acryl )製成。側板16周圍形成覆蓋橡膠或 類似物之移動式扶手1 7，移動式扶手1 7與階梯1 2同步 作動。 在出口 /入口處，寬度與階梯1 2相同的一梳板I 8形 成在一階梯進出孔處，梳板1 8在階梯進出孔處與階梯1 2 接觸俾防止階梯】2上的灰塵及類似物進入內機殼。 在地板上且於入口 /出口之前’在預定範圍內設置入 -6 - (4) 1291935 口 /出口板1 9 ’入口 /出口板1 9表面係例如粗縫化以保護 乘客在進出時不會滑倒。請注意入口 /出口板19下方有一 機殼（未示出），工作人員將入口 /出口板19拿起即可進 入機殼進行維修。 如圖2所示，乘客用輸送器11包括主乘客感應器21， 22和一副乘客感應器23做爲乘客感應器以實現自動化運 作。 主乘客感應器21，22感應靠近入口 /出口的乘客’這 些感應器中，主乘客感應器（A) 21係安裝在外部橫樑14 端部的入口 /出口附近’使得感應器輸出〜表面點在乘客進 入方向。標號24所指者爲主乘客感應器（A) 21感應範圍 (進一步言之，即主乘客感應器（A) 21發出的感應器信號 輸出範圍），二應應範圍24實質上彼此平行地從入口 /出 口兩側延伸一預定距離。 主乘客感應器（B) 22係安裝在入口 /出口處附近且和 主乘客感應器（A) 21相對，亦即在內部橫樑15端部’主 乘客感應器（B) 22係向內旋轉以形成與乘客進入方向有〜 預定角度。標號25所指者爲主乘客感應器（B) 22感應範 圍（進一步言之，即主乘客感應器（B) 22發出的感應器信 號輸出範圍），二應應範圍2 5實質上從入口 /出口兩側延 伸一預定距離，以在靠近入口 /出口板I 9端部彼此交叉。 主乘客感應器2 1，2 2感應靠在一感應範圍2 6內有無 乘客，由主乘客感應器2 1，2 2形成的感應範圍2 6寬度至 少大於階梯I 2寬度，且實質上等於直立在階梯]2兩側的 (5) 1291935. 欄杆1 3之間隔W。感應範圍2 6長度（乘客進入方向）， 落在從位於階梯進出孔起算的一預定距離L內，預定距離 L爲感應到前進乘客之最小距離，進一步言之，預定距離 L爲1.7-1.9公尺。 如圖3所示，離入口/出口越遠，主乘客感應器21， 22感應範圍24，25離地板20越高，請注意主乘客感應器 21，22安裝在例如乘客（標準高度）的腳附近，主乘客感 應器21，22感應範圍24，25逐漸從安裝位置上升到位於 範圍後端的例如乘客腰部位置。 副乘客感應器23感應各階梯12開始位置處有無乘 客，如圖2所示，副乘客感應器23安裝在上述欄杆13其 中一者下方的內部橫樑1 5的梳板1 9附近，使得感應器輸 出表面面對另一欄杆1 3的內部橫樑1 5。圖2中的標號2 7 所指者副乘客感應器2 3感應範圍（進一步言之，即副乘 客感應器23發出的感應器信號輸出範圍），應應範圍27 從一欄杆1 3延伸到另一欄杆13，同時維持一預定高度。 請注意副乘客感應器2 3安裝在例如乘客（標準高 度）的腳附近，以便可靠地感應在入口 /出口處落足於階 梯1 2上或舉足離開階梯1 2的乘客。 至於乘客感應器2 1 , 2 2，2 3，可使用例如光線發出部 及光線接收部整合在一起之反射光學感應器，亦可使用光 線發出部及光線接收部分開之感應器，或是超音波感應 器，亦即本發明中不限制感應器型式。 在此安排下，當要使用乘客用輸送器 Π的乘客從前 -8 - 1291935.. (6) 方或側面進入入口 /出口且進入包括安裝在外部橫樑14中 的主乘客感應器（A) 21感應範圍24以及安裝在內部橫樑 14中的主乘客感應器（B) 22感應範圍25之感應範圍26 時，乘客的出現被感應到，而乘客用輸送器Π開始運 作。 當此乘客跨越安裝在內部橫樑15的副乘客感應器23 感應範圍2 7且尙未踏上從梳板1 8位置出來的階梯1 2之 前，乘客的出現被感應到，而且乘客用輸送器11停止運 作的時機被測量。 圖4示出控制上述乘客用輸送器11運作的一控制器 3 1，控制器3 1係安裝在例如地板下方的機殻中。 如圖4所示，控制器3 1爲一電腦，且依據預定程式 控制乘客用輸送器1 1運作。控制器3 1連接到主乘客感應 器（A) 21、主乘客感應器（B) 22、和副乘客感應器23，也 連接到一計時器3 2以測量乘客用輸送器11運作時間。 標號3 3所指者爲包括例如驅動階梯1 2的一馬達之乘 客用輸送器驅動裝置，乘客用輸送器驅動裝置3 3之驅動 係依據控制器3 1輸出控制信號。 接著說明第一實施例運作。 圖5爲解釋本發明第一實施例的乘客用輸送器1】運 作的流程圖，此流程圖中所示之處理係在圖4中控制器 3 ]載有程式中所述程序來加以執行。 無乘客時，乘客用輸送器驅動裝置3 3停止運作，亦 即階梯]2之驅動停止，在此狀態下，安裝在外部橫樑1 4 冬 1291935. · (7) 中的主乘客感應器（A) 21和安裝在內部橫樑15中的主乘 客感應器（B) 22感應有無乘客。 若主乘客感應器（A) 21或主乘客感應器（B) 22打開 (步驟All中爲”是”），控制器31依據乘客進入圖2中 所示感應範圍26之感應器信號進行決定，並經由乘客用 輸送器驅動裝置33驅動階梯12，因而啓動乘客用輸送器 11運作（步驟A12)。若主乘客感應器（A) 21或主乘客 感應器（B) 22保持關閉（步驟A1 1中爲”否”），控制器 31待命直到感應到乘客。 當乘客用輸送器1 1開始運作，接著安裝在內部橫樑 15中的副乘客感應器23感應有無乘客，若副乘客感應器 2 3打開（步驟A 1 3中爲”是”），控制器3 1依據乘客踏上 橫跨圖2中所示感應範圍2 7之階梯1 2之感應信號，並啓 動計時器32 (步驟A14 )。若副乘客感應器23保持關閉 (步驟A 1 3中爲’，否），控制器3 1使乘客用輸送器1 1保 持運作。 計時器3 2測量運作的停止時機，若控制器3 1經由計 時器3 2確認已經過一段預定時間τ (步驟A 1 5中爲”是 ·，），控制器3 1經由乘客用輸送器驅動裝置3 3之停止階 梯1 2之驅動，因而停止乘客用輸送器1 1運作（步驟 A 1 6 )。若預定時間T尙未經過（步驟A 1 5中爲’’否”）’ 控制器3丨利用計時器32繼續測量時間。 預定時間T係稍長於乘客在額定速率下從一入口 /出 口被送到另一入口 /出口的時間’若在副乘客感應益2 3打 -10- 11 1291935· · (8) 開之後經過預定時間T，控制器3 1停止乘客用輸送器 之運作，使計時器3 2歸零，並待命。若副乘客感應器 因另一乘客進入而再度打開，控制器31重設計時器32 測量從該點起之停止時機。 如上所述，在無柱自動運作型乘客用輸送器11中 主乘客感應器2 1，22係安裝在外部橫樑1 4和內部橫樑 中以感應在寬度方向和長度方向調節的最小必須感應範 26中有無乘客，以此安排，其可避免感應經過乘客用 送器1 1側面的行人，而且除了要使用乘客用輸送器1 1 人之外，亦避免在乘客用輸送器11前方的人。 因此，不同於傳統乘客用輸送器，幾乎沒有不必要 運作會因感應器錯誤感應而引起，另外，由於運作之啓 和停止不會因這些不必要的運作而重覆，乘客用輸送器 命可延長。 而且，如圖3所示，感應範圍24和25在與主乘客 應器（Α) 21，和主乘客感應器（Β) 22之距離增加時上升 如此能可靠感應使用乘客用輸送器1 1之乘客。 乘客用輸送器1 1之運作係在主乘客感應器2 1，22 應到乘客之時啓動，因此，當此乘客踏上橫跨副乘客感 器2 3感應範圍2 7之階梯1 2時，乘客用輸送器Π在界 速度下穩定作業，如此，乘客可安全地被輸送，在他或 站在階梯1 2上時不會加速。感應範圍2 6縱向（乘客進 方向）長度L係決定成乘客在最小必須範圍內被感應到 而且當乘客真正踏上時，乘客用輸送器穩定運作。 23 以 5 15 圍 輸 的 的 動 m 感 感 應 定 她 入 -11 - 1291935 Ο) (第二實施例） 現在說明本發明第二實施例。 如圖6所示，第二實施例爲在一站中或類似者將上 下樓連接之鄰接的二乘客用輸送器41和42，乘客用輸 器41，42爲無柱自動運作型乘客用輸送器，乘客用輸 器41僅用於往上運作，標號43所指者爲乘客入口，標 44所指者爲乘客出口；乘客用輸送器42僅用於往下 作，標號45所指者爲乘客入口，標號46所指者爲乘客 口。 進行自動運作的乘客感應器係安裝在乘客用輸送 41的入口 43和出口 44以及乘客用輸送器42的入口 和出口 46。接著參照圖7解釋這些感應器之安排。 圖7爲乘客用輸送器4 I，4 2之俯視槪示平面圖。 亦即，乘客用輸送器41包括複數個階梯5 1，以及 位於階梯5 1兩端的側板54夾住的外部橫樑5 2和內部 樑5 3。階梯5 1係無端地連接，且在入口 4 3和出口 4 4 間環形運轉。 在各側板周圍形成與階梯5 ]同步動作的一移動式 手5 4 a，在入口 4 3和出口 4 4處分別形成梳板5 5，5 6， 板5 5和5 6與階梯進出孔中的階梯5 ]接觸，並防止灰 及類似物進入機殼。 乘客用輸送器42有相同之安排’亦即乘客用輸送 4 2包括複數個階梯7 ]’以及將位於階梯7 1兩端的側 送 送 號 運 出 器 4 5 將 橫 之 扶 梳 塵 器 板 -12 - (10) 1291935 74夾住的外部橫樑72和內部橫樑73。階梯7 1係無端地 連接，且在入口 45和出口 46之間環形運轉。 在各側板周圍形成與階梯71同步動作的一移動式扶 手74a，在入口 45和出口 46處分別形成梳板75，76，梳 板75和76與階梯進出孔中的階梯71接觸，並防止灰塵 及類似物進入機殼。。 乘客用輸送器41入口 43有進行自動運作的一主乘客 感應器（A) 61a、一主乘客感應器（B) 62a、副乘客感應器 (A) 6 3 a 〇 主乘客感應器61a和62a感應靠近入口 43之乘客， 在這些感應器中，主乘客感應器（A) 61a係安裝在位於外 部橫樑52端部的入口 43附近，使得感應器輸出表面所在 方向爲乘客進入方向。主乘客感應器（B) 62a係安裝在與 主乘客感應器（A) 6 1 a相對側面，亦即在內部橫樑5 2端 部。主乘客感應器（B) 62a向內旋轉而與乘客進入方向夾 一預定角度。 各乘客感應器61a，62a，63a安排與第一實施例中的 感應器21，22，23相同，所以其詳細解釋省略。標號64a 所指者爲主乘客感應器61a, 62a感應範圍，而標號65a所 指者爲副乘客感應器6 3 a感應範圍。 類似地，乘客用輸送器4 1出口 4 4有一主乘客感應器 (A) 61b、一主乘客感應器（B) 62b、副乘客感應器（A) 63b;標號64b所指者爲主乘客感應器6]b，62b感應範 圍，而標號6 5 b所指者爲副乘客感應器6 3 b感應範圍。 -13- (11) 1291935 乘客用輸送器42的入口 45和出口 46亦有相同安 排，亦即乘客用輸送器42的入口 45有一主乘客感應器（A) 8la、一主乘客感應器（B) 82a、副乘客感應器（A) 63a ;標 號84a所指者爲主乘客感應器81a，82a感應範圍，而標號 8 5 a所指者爲副乘客感應器8 3 a感應範圍。 類似地，乘客用輸送器42出口 46有一主乘客感應器 (A) 81b、一主乘客感應器（B) 82b、副乘客感應器（A) 83b;標號84b所指者爲主乘客感應器81b, 82b感應範 圍，而標號8 5 b所指者爲副乘客感應器8 3 b感應範圍。 如同第一實施例，爲了在最小必須範圍內感應乘客， 在乘客用輸送器41入口 43的感應範圍64a和在乘客用輸 送器41出口 44的感應範圍64b在寬度和長度方向調節。 類似地，爲了在最小必須範圍內感應乘客，在乘客用輸送 器42入口 45的感應範圍84a和在乘客用輸送器42出口 4 6的感應範圍8 4 b在寬度和長度方向調節。 另外，在乘客用輸送器41入口 43的感應範圍64a與 在乘客用輸送器41出口 44的感應範圍64b不會彼此千 涉。類似地，在乘客用輸送器41出口 44的感應範圍64b 與在乘客用輸送器42出口 46的感應範圍不會彼此千 涉。 在此安排下，當要利用僅設計成往上運作的乘客用_ 送器41之在下方樓層的乘客進入安裝在入口 43的主乘客 感應器（A ) 6 1 a和主乘客感應器（B ) 6 2 a形成的感應範園1 64 a，乘客用輸送器4 ]往上運作啓動。乘客用輸送器4 1 -14- (12) 1291935 往上運作在從乘客踏上橫跨副乘客感應器63a感應範圍 65a的階梯5 1之刻起算經過一段預定時間之後停止。 另一方面，當要利用僅設計成往下運作的乘客用輸送 器42之在上方樓層的乘客進入安裝在入口 45的主乘客感 應器（A) 81a和主乘客感應器（B) 82a形成的感應範圍 84a，乘客用輸送器42往下運作啓動。乘客用輸送器42 往下運作在從乘客踏上橫跨副乘客感應器8 3 a感應範圍 8 5 a的階梯7 1之刻起算經過一段預定時間之後停止。 若乘客誤入乘客用輸送器41出口 44，安裝在出口 44 的主乘客感應器6 1 b和6 2 b以及副乘客感應器6 3 b執行防 止誤入作業。此亦適用乘客用輸送器42出口 46，亦即若 乘客誤入乘客用輸送器42出口 46，安裝在出口 46的主 乘客感應器81b和82b以及副乘客感應器83b執行防止誤 入作業。 接著解進行上述運作控制之控制器安排，雖然因便利 之故解釋用於控制乘客用輸送器4 1之控制器安排，乘客 用輸送器42有相同的控制器。 圖8爲控制第二實施例的乘客用輸送器4 1運作的一 控制器9 ]方塊圖，控制器9 1係連同用於乘客用輸送器 42的控制器安裝在例如地板下方機殼中。 如圖8所示，控制器9 ]係一電腦，其依據預定程式 控制乘客用輸送器4 1運作。控制器9 1連接到安裝在入口 43的主乘客感應器（A) 6ia、主乘客感應器（B) 62a、以及 副乘客感應器63a，也連接到安裝在出口 44的主乘客感 -15- (13) 1291935 應器（A) 61b、主乘客感應器（B) 62b、以及副乘客感應器 63 b，亦連接到決定乘客用輸送器4 1運作時間的一計時器 9 1 〇 標號93所指者爲一乘客用輸送器驅動機構，其包括 將階梯5 1驅動的一馬達。乘客用輸送器驅動機構93之控 制係依據控制器9 1之輸出控制信號。 標號94所指者爲一警告裝置，警告裝置94安裝在乘 客用輸送器41入口 43和出口 44附近。若乘客從出口 44 誤入，警告裝置94藉由發出蜂鳴聲而給予警告。 接著說明第二實施例運作。 圖9爲示出本發明第二實施例的乘客用輸送器41運 作的流程圖，此流程圖中所示處理係利用圖8中控制器 9 1中載有的程式程序來執行。 當無乘客時，乘客用輸送器4 1停止運作，亦即各階 梯5 1之驅動停止。在此狀態下，若安裝在入口 4 3的乘客 感應器（A) 6] a或主乘客感應器（B) 62a打開（步驟Bl 1中 爲”是”），控制器9 1開始乘客用輸送器4 1往上運作之” 正常運作”。此運作之程序與圖5中所示流程相同，因此 將省略其詳細解釋。 另一方面，在乘客用輸送器41未運作時（步驟B11 中爲”否”），若安裝在出口 44的主乘客感應器（A) 61b或 主乘客感應器（B) 62b打開（步驟B12中爲”是”），控制 器9 ]判定乘客誤入出口 4 4，因此控制器9 ]藉由使乘客 用輸送器4 ]往上運作一段”防止逆向進入操作”來告知乘 •16- (14) 1291935 客他或她逆向進入（步驟B13 )。 若乘客在此時有注意到，控制器91使乘客用輸送器 4 1停止·，並回到待命狀態（步驟B 1 2中爲”否”）。若乘 客繼續進入，且副乘客感應器63b打開（步驟B14中爲” 是”），控制器9 1經由警告裝置94產生蜂鳴聲而給予乘 客警告（步驟B 1 5 )，只要副乘客感應器63b感應到乘 客，警告持續。 若主乘客感應器61b或62b感應到乘客，但副乘客感 應器6 3 b未感應到乘客，控制器91使乘客用輸送器4 1停 止，並回到待命狀態（步驟B 1 4中爲”否”）。 至於警告之方法，亦可發出”您正在由出口進入’請 停止，危險。”之聲音，而非上述之蜂鳴警告。另外’亦 可在顯示裝置上顯示警告訊息。 此亦適用乘客用輸送器4 2，亦即若安裝在出口 4 6附 近的主乘客感應器81b或82b感應到乘客進入出□ 46 ’ 控制器9 1執行”防止逆向進入操作”。若副乘客感應器8 3 b 感應到乘客，控制器產生警告。 如上所述，在彼此毗鄰安裝的無柱自動運作型乘客用 輸送器4] 5 4 2中，主乘客感應器6] a; 62a和主乘客感應 器81a, 82a係安裝在外部橫樑52，72和內部橫棵53，73 中，且有無乘客係在寬度方向和縱向被調節之最小必須感 應範圍64a，84a中感應，藉此安排，可藉由感應只有要使 用乘客用輸送器42之人來實現無錯誤運作之自動運 作。 -17- (15) 1291935 而且，由於出口 44和46安排與入口相同，亦可防止 乘客誤入。 另外，彼此相鄰的主乘客感應器不會彼此干涉，因此 不會發生運作錯誤，且可提供乘客用輸送器安全運作。 請注意各實施例係以”電扶梯”做爲乘客用輸送器例子 加以解釋，然而本發明亦可應用於無柱自動運作型”移動 式走道”。此時，可如上所述地在入口 /出口處安裝之乘客 感應器來防止錯誤感應，因而執行自動運作。 乘客用輸送器亦可在主乘客感應器感應到乘客之前以 預定速度被驅動，此預定速度比正常運作速度低。 當主乘客感應器感應到乘客，乘客用輸送器速度增加 到正常運作速度，之後，若副乘客感應器感應到乘客，計 時器打開，且維持正常運作速度一段預定時間。若副乘客 感應器未感應到乘客，乘客用輸送器速度降低到比正常運 作速度小。在經過一段預定時間之後，乘客用輸送器速度 從正常運作速度降低，且保持在較低速度運作。 此運作能縮短乘客用輸送器驅動起動時間，而且能讓 乘客明瞭階梯前進方向。 而且，使已經輸送乘客的乘客用輸送器停止之方法不 一定爲入口的主乘客感應器感應到乘客而啓動運作且在入 口的副乘客感應器感應到乘客而且經過預定時間停止運作 之方法，亦即其亦可在出口的主乘客感應器或副乘客感應 器感應到乘客離開乘客用輸送器而停止運作。 此時，若使用上述乘客用輸送器已經在預定速度下運 -18- (16) 1291935 作'、其中主乘客感應器在此狀態（惰速狀態）感應到乘客 而使乘客用輸送器速度增加之方法，乘客用輸送器在出口 的主乘客感應器或副乘客感應器感應到乘客離開乘客用輸 送器而減速，因而回到惰速狀態。 由於此種控制係在確認乘客已經離開之後運作停止或 減速，可更可靠且安全地輸送乘客。 亦可在內部橫樑中沿著階梯方向設置多個副乘客感應 器，藉此安排，其可感應乘客在乘客用輸送器中之位置， 並消除乘客站在一階梯上且副乘客感應器感應到乘客而且 經過預定時間之後之不便。 對熟悉此技人士而言立即可知其他優點及修改，因此 本發明其他較廣觀點不限於在此所示及所述之特定細節及 代表性實施例，因此在不偏離後附申請專利範圍及其等效 取代所界定的一般發明槪念的精神和範圍之下仍可有敔多 修改。 【圖式簡單說明】 倂入說明書並成爲其一部分的所附圖式示出本發明實 施例，且在以上的一般說明及以下的7較佳實施例詳細說 曰月將解釋本發明的原理。 圖]爲本發明第一實施例的無柱自動運作型乘客用輸 送器立體外觀圖； 圖2爲第一實施例的乘客用輸送器俯視槪示平面圖； 圖3爲第一實施例的乘客用輸送器側視槪示平面圖； -19- (17) (17)1291935 圖4爲控制第一實施例的乘客用輸送器運作的一控制 器方塊圖； 圖5爲解釋第一實施例的乘客用輸送器運作的流程 圖； 圖6爲本發明第二實施例之鄰接的二乘客用輸送器之 槪示圖； 圖7爲第二實施例之二乘客用輸送器之俯視槪示平面 圖； 圖8爲控制第二實施例的乘客用輸送器運作的一控制 器方塊圖； 圖9爲解釋第二實施例的乘客用輸送器運作的流程 圖。 【主要元件符號說明】 11 乘客用輸送器 12 階梯 13 欄杆 14 外部橫樑 1 5 內部橫樑 16 側板 1 7 移動式扶手 1 8 梳板 1 9 入口 /出口板 20 地板 -20- (18) 1291935 2 1 主乘 22 主乘 23 副乘 24 '感應 25 感應 26 感應 27 感應 3 1 控制 32 計時 33 乘客 4 1 乘客 42 乘客 43 入口 44 出口 45 入口 46 出口 5 1 階梯 52 外部 53 內部 54 側板 54a 移動 5 5 梳板 56 梳板 6 1a 主乘 橫樑 橫樑 式扶手 客感應器 客感應器 客感應器 客感應器 範圍 範圍 範圍 範圍 器 器 用輸送器驅動裝置 用輸送器 用輸送器 -21 - 1291935 (19) 6 1b 主 乘 客 感 應 器 62a 主 乘 客 感 應 器 62b 主 乘 客 感 應 器 63a 副 乘 客 感 應 器 63b 副 乘 客 感 應 器 6 4a 副 乘 客 感 應 器 64b 副 乘 客 感 應 器 65a 主 乘 客 感 應 器 65b 主 乘 客 感 應 器 7 1 階 梯 72 外 部 橫 樑 73 內 部 橫 樑 74 側 板 74a 移 動 式 扶 手 75 梳 板 76 梳 板 8 1a 主 乘 客 感 應 器 8 1b 主 乘 客 感 應 器 82a 主 乘 客 感 應 器 82b 主 乘 客 感 應 器 83a 副 乘 客 感 應 器 83b 副 乘 客 感 應 器 84a 感 應 範 圍 84b 感 應 範 圍 -22 - 1291935 (20) 85a 感應 85b 感應 9 1 控制 92 計時 93 乘客 94 警示 L 預定 W 間隔 範圍 範圍 器 器 用輸送器驅動裝置 裝置 距離 -23-BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor for passengers, particularly a conveyor that automatically operates using an inductor to sense the presence or absence of a passenger. [Prior Art] Conventionally, an automatic operation type passenger conveyor that automatically operates using a sensor to sense whether there is a passenger is known. In such an automatic operation type passenger conveyor, the sensor for sensing the passenger is generally set. In a photoelectric column installed at the inlet/outlet, if the sensor does not sense the passenger, the passenger conveyor will not operate and wait; if the sensor senses a passenger, the passenger operates at the rated speed with the conveyor. Unfortunately, this type of passenger conveyor requires the installation of a light pole at the inlet/outlet. Due to the need to ensure installation space, passenger conveyors are not available in some locations, or design problems arise. Therefore, a columnless automatic operation type passenger conveyor that does not use a photoelectric column has recently been provided, and attempts have been made to generalize such a passenger conveyor by various technical improvements (Japanese Patent Publication KOKAI 2 003 - 1 04 68 0 and 10- No. 182050) In general, this columnless automatic operation passenger conveyor has a built-in passenger sensor in the internal beam or the front wall plate. 'When these sensors sense the passenger, the passenger conveyor is rated at the rated Operates at speed. However, the sensing range of the sensor in the direction in which the passenger enters is too wide, so that even if the person who does not use the passenger conveyor passes, the sensor will react, -4- 1291935, . - * (2) causes unnecessary operation. Moreover, if a plurality of passengers are connected by a conveyor, the adjacent sensors interfere with each other to cause malfunction. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a transmitter that automatically operates only when a sensor correctly senses a passenger who is to use a conveyor. A passenger conveyor according to an aspect of the present invention is characterized in that it comprises a plurality of steps for the passenger to stand and leave, a pair of rails formed at both ends of the step, and a passenger sensing device installed near the entrance/exit of the pair of rails, the sensing range thereof The width is substantially equal to the spacing of the pair of rails, the length of the sensing range being within a predetermined distance from the inlet/outlet; and the drive controller controlling the driving of the steps in response to sensing the passenger operation by the passenger sensing device. A passenger conveyor according to another aspect of the present invention is characterized by comprising a plurality of steps for the passenger to stand and leave, a pair of columns formed at both ends of the step, a lever, and a main passenger sensing device installed near the entrance/exit of the pair of rails The sensing range width is substantially equal to the spacing of the pair of railings, the sensing range length is a predetermined distance from the inlet/outlet, the auxiliary passenger sensing device installed before the step starting positions of the pair of railings, and the driving The controller controls the driving of the ladder according to the main passenger sensing device and the auxiliary passenger sensing device sensing the passenger operation. The objects and advantages of the invention will be set forth in the description which follows. -5- (3) 1291935. And get. [Embodiment] Embodiments of the present invention will now be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a columnless automatic operation type passenger conveyor according to a first embodiment of the present invention, and FIG. 2 is a plan view of a passenger conveyor of the first embodiment; FIG. 3 is a side plan view of the passenger conveyor of the first embodiment. As shown in Fig. 1, the passenger conveyor 11 of this embodiment has a plurality of steps 12 for conveying passengers, and a pair of columns 13 standing on both sides of the step 12. The step 1 2 is a shoe molded from, for example, aluminum and is endlessly connected between the upper and lower inlets/outlets. The step 1 2 is annularly operated between the inlet/outlet and supported by a truss (not shown) at a predetermined angle. The outer cross member 14 and the inner cross member 15 are disposed on both sides below the pair of railings 13. The side plates 16 are sandwiched by, for example, transparent glass or acryl. A movable armrest covering the rubber or the like is formed around the side panel 16, and the movable armrest 17 is synchronized with the step 1 2 . At the outlet/inlet, a comb plate I 8 having the same width as the step 1 2 is formed at a step entry and exit hole, and the comb plate 18 is in contact with the step 1 2 at the step entry and exit hole to prevent dust and the like on the step 2 The object enters the inner casing. On the floor and before the inlet/outlet 'set within the predetermined range -6 - (4) 1291935 mouth / outlet plate 1 9 'inlet / outlet plate 1 9 surface is for example roughed to protect passengers from entering and leaving slip. Please note that there is a casing (not shown) below the inlet/outlet plate 19, and the worker picks up the inlet/outlet plate 19 to enter the casing for maintenance. As shown in Fig. 2, the passenger conveyor 11 includes a main passenger sensor 21, 22 and a passenger sensor 23 as passenger sensors for automatic operation. The main passenger sensors 21, 22 sense passengers near the entrance/exit. Among these sensors, the main passenger sensor (A) 21 is mounted near the entrance/exit of the end of the outer cross member 14 so that the sensor output - the surface point is Passengers enter the direction. Reference numeral 24 denotes the sensing range of the main passenger sensor (A) 21 (further, the sensor signal output range issued by the main passenger sensor (A) 21), and the second range should be substantially parallel to each other. The inlet/outlet sides extend a predetermined distance on both sides. The main passenger sensor (B) 22 is mounted near the entrance/exit and opposite the main passenger sensor (A) 21, that is, at the end of the inner cross member 15 the main passenger sensor (B) 22 is rotated inwardly. Formed with the passenger entering direction has a predetermined angle. The reference numeral 25 refers to the main passenger sensor (B) 22 sensing range (further, that is, the sensor signal output range issued by the main passenger sensor (B) 22), and the second should be in the range of 2 5 substantially from the entrance / Both sides of the outlet extend a predetermined distance to cross each other near the end of the inlet/outlet plate I9. The main passenger sensor 2 1, 2 2 senses whether there is a passenger in a sensing range 26, and the sensing range 26 formed by the main passenger sensor 2 1, 2 2 is at least wider than the step I 2 width and substantially equal to the erect On the sides of the ladder]2 (5) 1291935. The gap between the railings 1 and 3 is W. The sensing range is 6 6 length (passenger entering direction), falling within a predetermined distance L from the step access hole, and the predetermined distance L is the minimum distance to sense the forward passenger. Further, the predetermined distance L is 1.7-1.9. ruler. As shown in Fig. 3, the further away from the entrance/exit, the higher the main passenger sensors 21, 22 are in the range 24, 25 from the floor 20, please note that the main passenger sensors 21, 22 are mounted on, for example, the feet of a passenger (standard height). Nearby, the main passenger sensors 21, 22 sense ranges 24, 25 gradually rise from the installed position to, for example, the passenger's waist position at the rear end of the range. The passenger occupant sensor 23 senses the presence or absence of a passenger at the start position of each of the steps 12, and as shown in Fig. 2, the passenger occupant sensor 23 is mounted near the comb plate 19 of the inner cross member 15 below one of the railings 13, so that the sensor The output surface faces the inner cross member 15 of the other railing 13. Reference numeral 2 7 in Fig. 2 refers to the sub-passenger sensor 23 sensing range (further, that is, the sensor signal output range from the passenger sensor 23), should extend from a railing 1 3 to another range A railing 13 while maintaining a predetermined height. Note that the passenger sensor 2 3 is installed near a foot such as a passenger (standard height) to reliably sense a passenger who falls on the step 1 2 at the entrance/exit or lifts off the step 12. As for the passenger sensors 2 1 , 2 2, 2 3 , for example, a reflective optical sensor in which a light emitting portion and a light receiving portion are integrated, or a light emitting portion and a light receiving portion may be used, or The acoustic sensor, that is, the sensor type is not limited in the present invention. Under this arrangement, when the passenger to be transported using the passenger conveyor enters the entrance/exit from the front -8 - 1291935.. (6) side or side and enters the main passenger sensor (A) including the outer cross member 14 installed 21 When the sensing range 24 and the main passenger sensor (B) 22 mounted in the inner cross member 14 sense the sensing range 26 of the range 25, the presence of the passenger is sensed and the passenger uses the conveyor Π to start operation. When the passenger crosses the sensing range 2 7 mounted on the passenger beam 23 of the inner cross member 15 and does not step on the step 1 2 from the position of the comb plate 18, the appearance of the passenger is sensed and the passenger stops with the conveyor 11. The timing of the operation is measured. Fig. 4 shows a controller 3 1 for controlling the operation of the above-described passenger conveyor 11, and the controller 31 is mounted in, for example, a casing below the floor. As shown in Fig. 4, the controller 31 is a computer and controls the passenger conveyor 11 to operate in accordance with a predetermined program. The controller 31 is connected to the main passenger sensor (A) 21, the main passenger sensor (B) 22, and the passenger sensor 23, and is also connected to a timer 3 2 to measure the operation time of the passenger conveyor 11. Reference numeral 3 3 denotes a passenger conveyor driving device including, for example, a motor that drives the step 1 2, and the driving of the passenger conveyor driving device 3 3 outputs a control signal in accordance with the controller 31. Next, the operation of the first embodiment will be described. Fig. 5 is a flow chart for explaining the operation of the passenger conveyor 1 of the first embodiment of the present invention, and the processing shown in the flowchart is executed by the controller 3 in Fig. 4 carrying the program described in the program. When there is no passenger, the passenger stops with the conveyor drive unit 3, that is, the drive of the step]2 is stopped. In this state, the main passenger sensor (A) is installed on the outer cross member 1 4 Winter 1291935. (7) 21 and the main passenger sensor (B) 22 installed in the internal cross member 15 sense the presence or absence of passengers. If the main passenger sensor (A) 21 or the main passenger sensor (B) 22 is turned on (YES in step All), the controller 31 makes a decision based on the sensor signal of the passenger entering the sensing range 26 shown in FIG. The step 12 is driven by the passenger conveyor drive unit 33, thereby activating the passenger conveyor 11 (step A12). If the primary passenger sensor (A) 21 or the primary passenger sensor (B) 22 remains off (NO in step A1 1), the controller 31 stands by until the passenger is sensed. When the passenger starts operation with the conveyor 11, the passenger sensor 23 installed in the inner cross member 15 senses the presence or absence of the passenger, and if the passenger sensor 23 is turned on (YES in step A1 3), the controller 3 1 The timer 32 is started in accordance with the passenger's stepping on the sensing signal across the step 12 of the sensing range 27 shown in Fig. 2 (step A14). If the passenger sensor 23 remains off (YES in step A 13), the controller 31 keeps the passenger conveyor 1 1 operational. The timer 3 2 measures the stop timing of the operation. If the controller 31 confirms that the predetermined time τ has elapsed via the timer 3 2 (YES in step A1 5), the controller 31 is driven by the passenger conveyor. The driving of the stop step 1 2 of the device 3 3, thus stopping the operation of the passenger conveyor 1 1 (step A 16 6 ). If the predetermined time T 尙 has not passed ("NO" in step A 1 5)" controller 3丨 Continue to measure time using timer 32. The predetermined time T is slightly longer than the time when the passenger is sent from one entrance/exit to the other at the rated rate. 'If the passenger is in the sense of 2 3 dozen -10- 11 1291935 · (8) At time T, the controller 3 1 stops the operation of the passenger conveyor, zeros the timer 3 2, and stands by. If the passenger sensor is turned on again due to another passenger entering, the controller 31 resets the timer 32 to measure the stop timing from that point. As described above, in the columnless automatic operation type passenger conveyor 11, the main passenger sensors 2 1, 22 are mounted in the outer cross member 14 and the inner cross member to sense the minimum necessary induction range adjusted in the width direction and the length direction. There are passengers in the arrangement, which avoids the pedestrians passing through the side of the passenger conveyor 1 1 and avoids the person in front of the passenger conveyor 11 in addition to the passenger conveyor 1 1 person. Therefore, unlike conventional passenger conveyors, almost no unnecessary operation can be caused by sensor error sensing. In addition, since the start and stop of operation will not be repeated due to these unnecessary operations, the passenger can use the conveyor. extend. Moreover, as shown in FIG. 3, the sensing ranges 24 and 25 rise when the distance from the main passenger device (Α) 21 and the main passenger sensor (Β) 22 increases, so that the passenger conveyor 1 1 can be reliably sensed. passenger. The operation of the passenger conveyor 1 1 is initiated when the main passenger sensor 2 1, 22 is to be reached by the passenger, so that when the passenger steps on the step 1 2 across the sensing range 27 of the secondary passenger sensor 23 The passenger uses the conveyor to stabilize the work at the boundary speed, so that the passenger can be safely transported without accelerating when he or standing on the step 12. Induction range 2 6 The longitudinal (passenger direction) length L is determined so that the passenger is sensed within the minimum necessary range and the passenger is stably operated by the conveyor when the passenger actually steps on. 23 The dynamic m sensed by 5 15 should be set to -11 - 1291935 Ο) (Second Embodiment) A second embodiment of the present invention will now be described. As shown in Fig. 6, the second embodiment is an adjacent two passenger conveyors 41 and 42 which are connected to the upper and lower floors in one station or the like, and the passenger conveyors 41, 42 are for columnless automatic operation type passengers. The passenger conveyor 41 is only used for upward operation, the reference numeral 43 refers to the passenger entrance, the reference numeral 44 refers to the passenger exit; the passenger conveyor 42 is only used for downward operation, and the reference numeral 45 refers to Passenger entrance, reference numeral 46 refers to the passenger's mouth. The passenger sensor that performs the automatic operation is installed at the inlet 43 and the outlet 44 of the passenger conveyor 41 and the inlet and outlet 46 of the passenger conveyor 42. Next, the arrangement of these inductors will be explained with reference to FIG. Figure 7 is a top plan view showing the passenger conveyors 4 I, 42. That is, the passenger conveyor 41 includes a plurality of steps 51, and an outer cross member 52 and an inner beam 53 which are sandwiched by the side plates 54 at both ends of the step 51. The step 5 1 is connected endlessly and operates annularly between the inlet 4 3 and the outlet 4 4 . A movable hand 5 4 a is formed around each side plate in synchronization with the step 5], and comb plates 5 5, 5 6 , plates 5 5 and 56 and step access holes are respectively formed at the inlet 4 3 and the outlet 4 4 . The ladder 5] contacts and prevents ash and the like from entering the casing. The passenger conveyor 42 has the same arrangement 'that is, the passenger conveyor 4 2 includes a plurality of steps 7 ]' and the side conveyor number 4 5 that will be located at both ends of the step 7 1 will cross the carding machine - 12 - (10) 1291935 74 External beam 72 and internal beam 73 clamped. The step 7 1 is connected endlessly and operates annularly between the inlet 45 and the outlet 46. A movable armrest 74a is formed around each side plate in synchronism with the step 71, and comb plates 75, 76 are formed at the inlet 45 and the outlet 46, respectively, and the comb plates 75 and 76 are in contact with the step 71 in the step inlet and outlet holes, and dust is prevented. And the like enter the casing. . The passenger conveyor 41 inlet 43 has a main passenger sensor (A) 61a, a main passenger sensor (B) 62a, a passenger sensor (A) 6 3 a 〇 main passenger sensors 61a and 62a for automatic operation. The passengers near the entrance 43 are sensed. Among these sensors, the main passenger sensor (A) 61a is mounted near the inlet 43 at the end of the outer cross member 52 such that the direction of the sensor output surface is the passenger entering direction. The main passenger sensor (B) 62a is mounted on the opposite side of the main passenger sensor (A) 61a, i.e., at the end of the inner cross member 52. The main passenger sensor (B) 62a rotates inwardly to a predetermined angle with the passenger entering direction. Each of the passenger sensors 61a, 62a, 63a is arranged the same as the inductors 21, 22, 23 in the first embodiment, so that detailed explanation thereof will be omitted. Reference numeral 64a refers to the sensing range of the main passenger sensors 61a, 62a, and the reference numeral 65a refers to the sensing range of the passenger sensor 6 3 a. Similarly, the passenger conveyor 4 1 has a main passenger sensor (A) 61b, a main passenger sensor (B) 62b, and a passenger sensor (A) 63b; the finger 64b refers to the main passenger sensor. The 6'b, 62b sense range, and the number 6 5b refers to the sub-passenger sensor 6 3 b sensing range. -13- (11) 1291935 The inlet 45 and the outlet 46 of the passenger conveyor 42 are also arranged in the same arrangement, that is, the inlet 45 of the passenger conveyor 42 has a main passenger sensor (A) 8la and a main passenger sensor (B). 82a, the passenger sensor (A) 63a; the finger 84a refers to the main passenger sensor 81a, 82a sensing range, and the reference numeral 85 a refers to the passenger sensor 8 3 a sensing range. Similarly, the passenger conveyor 42 outlet 46 has a primary passenger sensor (A) 81b, a primary passenger sensor (B) 82b, and a secondary passenger sensor (A) 83b; reference numeral 84b refers to the primary passenger sensor 81b. , 82b sensing range, and the number 8 5 b refers to the sub-passenger sensor 8 3 b sensing range. As in the first embodiment, in order to sense the passenger within the minimum necessary range, the sensing range 64a at the inlet 43 of the passenger conveyor 41 and the sensing range 64b at the outlet 44 of the passenger conveyor 41 are adjusted in the width and length directions. Similarly, in order to sense the passenger within the minimum necessary range, the sensing range 84a at the inlet 45 of the passenger conveyor 42 and the sensing range 8 4b at the outlet 46 of the passenger conveyor 42 are adjusted in the width and length directions. Further, the sensing range 64a at the inlet 43 of the passenger conveyor 41 and the sensing range 64b at the outlet 44 of the passenger conveyor 41 do not interfere with each other. Similarly, the sensing range 64b at the outlet 44 of the passenger conveyor 41 and the sensing range at the outlet 46 of the passenger conveyor 42 do not interfere with each other. Under this arrangement, when the passenger on the lower floor who is only designed to operate upwards is used, the passengers on the lower floor enter the main passenger sensor (A) 6 1 a and the main passenger sensor (B) installed at the entrance 43. ) 6 2 a formed the induction fan park 1 64 a, the passenger conveyor 4] is operated upwards. The passenger conveyor 4 1 - 14 - (12) 1291935 operates upwards and stops after a predetermined period of time elapses from the time when the passenger steps on the sensing range 65a of the passenger occupant 63a. On the other hand, when the passenger on the upper floor of the passenger conveyor 42 designed only to operate downward enters the main passenger sensor (A) 81a and the main passenger sensor (B) 82a installed at the inlet 45, The sensing range 84a is activated by the passenger conveyor 42 down. The passenger conveyor 42 operates downwardly after a predetermined period of time elapses from the time when the passenger steps on the step 7 1 across the sub-passenger sensor 8 3 a sensing range 8 5 a . If the passenger mistakenly enters the exit 44 of the passenger conveyor 41, the main passenger sensors 6 1 b and 6 2 b installed at the exit 44 and the passenger sensor 6 3 b perform the misoperation prevention operation. This also applies to the exit 46 of the passenger conveyor 42, i.e., if the passenger mistakenly enters the exit 46 of the passenger conveyor 42, the main passenger sensors 81b and 82b and the passenger sensor 83b installed at the exit 46 perform the operation to prevent the intrusion. Next, the controller arrangement for the above operational control is solved, and although the controller arrangement for controlling the passenger conveyor 41 is explained for convenience, the passenger conveyor 42 has the same controller. Fig. 8 is a block diagram showing a controller 9 for controlling the operation of the passenger conveyor 4 1 of the second embodiment, and the controller 9 1 is installed in, for example, the underfloor cabinet together with a controller for the passenger conveyor 42. As shown in Fig. 8, the controller 9 is a computer which controls the passenger conveyor 41 to operate in accordance with a predetermined program. The controller 91 is connected to a main passenger sensor (A) 6ia, a main passenger sensor (B) 62a, and a passenger occupant 63a installed at the entrance 43, and is also connected to the main passenger Sense -15- installed at the exit 44. (13) 1291935 The receiver (A) 61b, the main passenger sensor (B) 62b, and the passenger sensor 63b are also connected to a timer 9 1 〇 93, which determines the operation time of the passenger conveyor 4 1 The finger is a passenger conveyor drive mechanism that includes a motor that drives the step 51. The control of the passenger conveyor drive mechanism 93 is based on the output control signal of the controller 91. Reference numeral 94 denotes a warning device which is installed near the inlet 43 and the outlet 44 of the passenger conveyor 41. If the passenger misses from the exit 44, the warning device 94 gives a warning by beeping. Next, the operation of the second embodiment will be described. Fig. 9 is a flow chart showing the operation of the passenger conveyor 41 of the second embodiment of the present invention, and the processing shown in the flowchart is executed by the program program carried in the controller 91 of Fig. 8. When there is no passenger, the passenger stops operation with the conveyor 4 1 , that is, the driving of each step 51 is stopped. In this state, if the passenger sensor (A) 6] a installed at the entrance 43 or the main passenger sensor (B) 62a is turned on (YES in step B1), the controller 9 1 starts the passenger transportation. The device 4 1 operates upwards "normal operation". The procedure of this operation is the same as that shown in Fig. 5, and thus a detailed explanation thereof will be omitted. On the other hand, when the passenger conveyor 41 is not operating (NO in step B11), if the main passenger sensor (A) 61b or the main passenger sensor (B) 62b installed at the exit 44 is opened (step B12) In the middle of "Yes", the controller 9] determines that the passenger has mistakenly entered the exit 4 4, so the controller 9] informs the passenger by using the conveyor 4] to operate the "anti-reverse operation". 14) 1291935 The guest enters him or her in reverse (step B13). If the passenger notices at this time, the controller 91 causes the passenger to stop with the conveyor 4 1 and returns to the standby state (NO in step B 1 2). If the passenger continues to enter and the passenger occupant sensor 63b is turned on (YES in step B14), the controller 9 1 generates a buzzer sound via the warning device 94 to give the passenger a warning (step B 15) as long as the passenger occupant sensor The 63b senses the passenger and the warning continues. If the primary passenger sensor 61b or 62b senses the passenger but the secondary passenger sensor 63b does not sense the passenger, the controller 91 stops the passenger conveyor 41 and returns to the standby state (step B1 4) no"). As for the method of warning, you can also issue the "You are entering by exit", please stop, dangerous." The sound, not the above-mentioned buzzer warning. In addition, a warning message can also be displayed on the display device. This also applies to the passenger conveyor 42, i.e., if the main passenger sensor 81b or 82b installed near the exit 46 senses that the passenger enters the exit 46' controller 91, the "anti-reverse operation" is performed. If the passenger sensor 8 3 b senses the passenger, the controller generates a warning. As described above, in the column-free automatic operation type passenger conveyor 4] 5 4 2 installed adjacent to each other, the main passenger sensor 6] a; 62a and the main passenger sensors 81a, 82a are mounted on the outer cross member 52, 72 And the inner crosspieces 53, 73, and whether or not the passenger is sensed in the minimum necessary sensing range 64a, 84a in the width direction and the longitudinal direction, whereby the arrangement can be made by sensing only the person who is to use the passenger conveyor 42 Achieve automatic operation without error. -17- (15) 1291935 Moreover, since the exits 44 and 46 are arranged in the same way as the entrance, passengers can also be prevented from entering. In addition, the main passenger sensors adjacent to each other do not interfere with each other, so that no operational errors occur and the passenger conveyor can be operated safely. Please note that the various embodiments are explained by the "elevator" as an example of a passenger conveyor, but the invention can also be applied to a columnless automatic operation type "mobile walkway". At this time, the passenger sensor installed at the entrance/exit can be prevented as described above to prevent false sensing, thereby performing automatic operation. The passenger conveyor can also be driven at a predetermined speed before the primary passenger sensor senses the passenger, which is lower than the normal operating speed. When the passenger sensor senses the passenger, the passenger speed is increased to the normal operating speed. Thereafter, if the passenger sensor senses the passenger, the timer is turned on and the normal operating speed is maintained for a predetermined period of time. If the passenger is not sensed by the passenger sensor, the passenger conveyor speed is reduced to less than the normal operating speed. After a predetermined period of time, the passenger uses the conveyor speed to decrease from normal operating speed and remains at a lower speed. This operation shortens the start-up time of the passenger conveyor and allows the passenger to understand the direction of the ladder. Moreover, the method of stopping the passenger who has transported the passenger with the conveyor does not necessarily start the operation by the main passenger sensor of the entrance sensing the passenger and the passenger is sensed at the entrance passenger's passenger and the operation is stopped after a predetermined time. That is, it can also sense that the passenger leaves the passenger conveyor and stops operating at the exit of the main passenger sensor or the passenger sensor. At this time, if the above-mentioned passenger conveyor is used, it has been transported at a predetermined speed of -18-(16) 1291935, where the main passenger sensor senses the passenger in this state (idle speed state) and the passenger conveyor speed is increased. In this way, the passenger conveyor detects that the passenger decelerates from the passenger conveyor at the exit main passenger sensor or the passenger sensor, and thus returns to the idle speed state. Since such control is stopped or decelerated after confirming that the passenger has left, the passenger can be transported more reliably and safely. It is also possible to arrange a plurality of passenger sensors in the internal cross member along the step direction, whereby the arrangement can sense the position of the passenger in the passenger conveyor and eliminate the passenger standing on a ladder and the passenger sensor senses Passengers are inconvenient after a predetermined time. Other advantages and modifications of the present invention will be apparent to those skilled in the art, and the invention is not limited to the specific details and representative embodiments shown and described herein. There may be many modifications under the spirit and scope of the general inventive concept defined by the equivalent substitution. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a Figure 2 is a perspective view showing a passengerless conveyor for a columnless automatic operation type of the first embodiment of the present invention; Fig. 2 is a plan view showing the passenger conveyor of the first embodiment; Figure 3-4 is a side view of a controller for controlling the operation of the passenger conveyor of the first embodiment; and Fig. 5 is a block diagram for explaining the passenger of the first embodiment; Figure 6 is a schematic view of an adjacent two-passenger conveyor according to a second embodiment of the present invention; Figure 7 is a plan view showing a second passenger conveyor of the second embodiment; A block diagram of a controller for controlling the operation of the passenger conveyor of the second embodiment; Fig. 9 is a flow chart for explaining the operation of the passenger conveyor of the second embodiment. [Main component symbol description] 11 Passenger conveyor 12 Step 13 Railing 14 External beam 1 5 Internal beam 16 Side panel 1 7 Mobile armrest 1 8 Comb 1 9 Inlet/outlet panel 20 Floor -20- (18) 1291935 2 1 Master 22 Master 23 Charity 24 'Induction 25 Induction 26 Induction 27 Induction 3 1 Control 32 Timing 33 Passenger 4 1 Passenger 42 Passenger 43 Entrance 44 Exit 45 Entrance 46 Exit 5 1 Step 52 Exterior 53 Interior 54 Side Plate 54a Movement 5 5 Comb 56 Comb 6 1a Main beam beam beam armor guest sensor Guest sensor Guest sensor Range Range Range Ranger Conveyor drive conveyor conveyor 21 - 1291935 (19) 6 1b Main Passenger sensor 62a Main passenger sensor 62b Main passenger sensor 63a Passenger passenger sensor 63b Passenger passenger sensor 6 4a Passenger passenger sensor 64b Passenger passenger sensor 65a Main passenger sensor 65b Main passenger sensor 7 1 Step 72 External beam 73 internal beam 74 side 74a Mobile handrail 75 Comb 76 Comb 8 1a Main passenger sensor 8 1b Main passenger sensor 82a Main passenger sensor 82b Main passenger sensor 83a Passenger sensor 83b Passenger sensor 84a Sensing range 84b Sensing range -22 - 1291935 (20) 85a Induction 85b Induction 9 1 Control 92 Timing 93 Passenger 94 Warning L Predetermined W Interval Range Ranger Conveyor Drive Unit Distance -23-