JPS5841775U

JPS5841775U - Step chain elongation detection device on passenger conveyor

Info

Publication number: JPS5841775U
Application number: JP13720381U
Authority: JP
Inventors: 基博中島; 矢田　薫
Original assignee: 株式会社東芝
Priority date: 1981-09-16
Filing date: 1981-09-16
Publication date: 1983-03-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は一般のエスカレータの概略的構成図、第２図は
同エスカレータにおける従動輪側テンション機構部に設
けた従来の踏段チェーン伸び検出装置の概略的構成図、
第３図は同従来の検出装置の拡大図、第４図は同従来の
検出装置の検出作動状態を示す拡大図、第５図はこの考
案の一実施例を示す要部の一部断面した構成図、第６図
は同実施例における押し板の斜視図、第７図はこの考案
の他の実施例を示す要部の一部断面した構成図である。１・・・駆動輪、２・・・従動輪、３・・・踏段チェー
ン、４・・・駆動装置、５・・・駆動チェーン、６・・
・ガイド、７・・・踏段、８・・・欄干、９・・・移動
手摺り、１０・・・トラス、１１・・・ロッド受け、１
２・・・テンションロッド、１３・・・ばね受け、１４
・・・ばね、１５・・・リミットスイッチ、１６・・・
動作片、１７・・・先端ローラ、１Ｂ、２０．２３・・
・押し板、１９・・・ナツト、２０ａ・・・垂下板部、
２（）ｂ、２３ｂ・・・上部水平板部、２１・・・ロッ
ド挿通穴、２２，２６・・・長穴、２４・・・板、２５
・・・ビス。２２１９１９１３Fig. 1 is a schematic diagram of a general escalator, and Fig. 2 is a schematic diagram of a conventional step chain elongation detection device installed in the tension mechanism on the driven wheel side of the escalator.
Fig. 3 is an enlarged view of the conventional detection device, Fig. 4 is an enlarged view showing the detection operation state of the conventional detection device, and Fig. 5 is a partial cross-section of the main part showing an embodiment of this invention. FIG. 6 is a perspective view of a push plate in the same embodiment, and FIG. 7 is a partially cross-sectional configuration diagram of a main part showing another embodiment of this invention. DESCRIPTION OF SYMBOLS 1... Drive wheel, 2... Driven wheel, 3... Step chain, 4... Drive device, 5... Drive chain, 6...
・Guide, 7... Steps, 8... Balustrade, 9... Moving handrail, 10... Truss, 11... Rod holder, 1
2... Tension rod, 13... Spring receiver, 14
...Spring, 15...Limit switch, 16...
Operating piece, 17... Tip roller, 1B, 20.23...
・Push plate, 19... nut, 20a... hanging plate part,
2()b, 23b... Upper horizontal plate part, 21... Rod insertion hole, 22, 26... Long hole, 24... Board, 25
···Screw. 22 191913

Claims

[Scope of utility model registration request]

A push plate for switch operation is positioned and fixed to a tension rod that constantly tensions the step chain by pulling a movable driven wheel with a spring force, and a tip roller is attached to the push plate to operate a switch that rides on the push plate. A limit switch is provided that operates when the step chain comes off due to movement of a predetermined stroke to detect elongation exceeding the allowable limit of the step chain, and the push plate has a limit switch actuating part that is smaller than the radius of the roller at the tip end of the step chain, and that the roller A step chain elongation detection device for a passenger conveyor, characterized in that an elongated hole longer than the axial length of the limit switch is provided in accordance with the initial set position of the limit switch tip roller with respect to the push plate.