JPS6064962U

JPS6064962U - Elevator tampering alarm system

Info

Publication number: JPS6064962U
Application number: JP15824683U
Authority: JP
Inventors: 国井　和司; 谷藤　哲男
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1983-10-13
Filing date: 1983-10-13
Publication date: 1985-05-08

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 the drawing]

第１図はこの考案のいたずら警報装置を備えたエレベー
タの概略図、−第２図はこの考案のエレベータいたずら
警報装置の一実施例を示すブロック図、第３図及び第４
図はそれぞれこの考案のいたずら警報装置の他の実施例
を示すブロック図である。４・・・かご、４ｂ・・・かご枠、６・・・巻上機、７
・・・ロープ、８・・・シャックルロッド、９・・・ナ
ツト、１０・・・ばね座、１１・・・シャックルばね、
１３・・・過負荷　　−検出スイッチ、１４・・・ロー
プ緩み検出スイッチ、１５・・・作動片、１６．１７・
・・時限保持回路、１８．２０・・・ＡＮＤゲート、１
９・・・揺動警報器、２　　−１・・・走行指令回路、
２２・・・最寄階停止指令回路、２３．２４・・・積分
回路、２７・・・乗過警報器、２８・・・出発阻止指令
回路、２９・・・巻上機停止指令向路。なお、図中同一
符号は同−又は相当部分を示す。Fig. 1 is a schematic diagram of an elevator equipped with the tampering alarm system of this invention, - Fig. 2 is a block diagram showing an embodiment of the elevator tampering alarm system of this invention, and Figs.
The figures are block diagrams showing other embodiments of the tampering alarm device of this invention. 4... Car, 4b... Car frame, 6... Hoisting machine, 7
... rope, 8 ... shackle rod, 9 ... nut, 10 ... spring seat, 11 ... shackle spring,
13... Overload-detection switch, 14... Rope slack detection switch, 15... Actuation piece, 16.17.
...Time limit holding circuit, 18.20...AND gate, 1
9... Shaking alarm, 2-1... Traveling command circuit,
22... Nearest floor stop command circuit, 23.24... Integral circuit, 27... Overpass alarm, 28... Departure prevention command circuit, 29... Hoisting machine stop command direction path. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Claims for Utility Model Registration] (1) In a rope elevator, a plurality of detection switches that detect changes in the upward and downward rocking of the car, and a circuit that holds the output signal of at least one of the detection switches for a limited time. and circuit means for determining that the car has been intentionally swung when the detection switch of the above function is activated during the time limit holding of the switch output by the time limit holding circuit, and an alarm means controlled by this circuit means. An elevator tampering alarm device characterized by: (2) The elevator tampering alarm IT according to claim 1, wherein the detection switch is configured to operate by detecting overload on the car and loosening of the rope. <3) The elevator tampering alarm device according to claim 2, wherein the overload detection switch is activated by overcompression of the rope shackle spring. (4) The elevator tampering alarm device according to claim 2, wherein the rope slack detection switch is activated by extension of a lobe shackle spring. (5) Elevator tampering alarm as set forth in claim 1, wherein the determination circuit means is comprised of an AND gate that takes the logical product of the output signals of the detection switch and the time holding circuit. Device.