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Patent Searching and Data


Title:
SAFETY DEVICE FOR MAINTENANCE OPERATION FOR ELEVATOR
Document Type and Number:
Japanese Patent JPH0616355
Kind Code:
A
Abstract:

PURPOSE: To output the announcement for arousing attention for an maintenance operator on the start or during operation, in order to surely prevent the nipped trouble, collision trouble, etc., which come from the careless mistake, shortage of paying attention, etc., of the maintenance operator, in the upper part of an elevator cage chamber in the maintenance operation.

CONSTITUTION: A safety device for the maintenance operation of an elevator consists of an operation switch 10 for maintenance, controller 6 which calculates the straight line distance between a cage chamber and a balance weight, straight line distance between the cage chamber and an elevator shaft top part, and the straight line distance between the cage chamber of the contiguous machine and the cage chamber of the own machine, from the position at present of the elevator cage chamber, and outputs the signal for arousing attention for a maintenance operator, when each distance becomes less than each specified value, and an announce output device 2 for assisting the maintenance operator to be informed of the output of the controller 6.


Inventors:
SHIOZAKI HIDEKI
Application Number:
JP17810092A
Publication Date:
January 25, 1994
Filing Date:
July 06, 1992
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC BILL TECH
MITSUBISHI ELECTRIC CORP
International Classes:
B66B5/00; (IPC1-7): B66B5/00
Attorney, Agent or Firm:
Soga Doteru (6 people outside)