Title:
EMERGENCY ELEVATOR
Document Type and Number:
Japanese Patent JP2018002353
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an emergency elevator that enables secondary fire-fighting operation even if ground fault occurs in a cable of a riding door switch in the event of fire and, as a result, a safety circuit power source protection element operates.SOLUTION: An emergency elevator according to an embodiment comprises: a secondary fire-fighting operation switch, a safety circuit, a safety circuit power source protection element, a fire-fighting operation switch, and an emergency operation control device. The fire-fighting operation switch is a switch for switching to a state that enables a secondary fire-fighting operation when the secondary fire-fighting operation is not allowed despite ON operation of the secondary fire-fighting operation switch. In a case where the fire-fighting operation switch is On operated when the secondary fire-fighting operation switch is ON operated and a power source to the safety circuit is shut off by the operation of the safety circuit power source protection element due to the occurrence of ground fault in a cable of a riding door switch, the emergency operation control device disconnects the riding door switch from a power source, recovers a power source to the safety circuit, and enables the secondary fire-fighting operation.SELECTED DRAWING: Figure 1
Inventors:
MINAMI MASAKI
SHIBATA MITSUHARU
SHIBATA MITSUHARU
Application Number:
JP2016128952A
Publication Date:
January 11, 2018
Filing Date:
June 29, 2016
Export Citation:
Assignee:
TOSHIBA ELEVATOR CO LTD
International Classes:
B66B5/02
Domestic Patent References:
| JP2009062127A | 2009-03-26 | |||
| JP2008156092A | 2008-07-10 | |||
| JPH0291765U | 1990-07-20 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu