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Patent Searching and Data


Title:
CONTROL DEVICE OF HYDRAULIC ELEVATOR
Document Type and Number:
Japanese Patent JPH0885684
Kind Code:
A
Abstract:

PURPOSE: To make it needless to extend a floor area of a machine room and to increase height of the machine room even in a case when an automatic emergency landing operation device on standby power is added to a control device of a hydraulic elevator.

CONSTITUTION: A microcomputer control circuit CIR1, a relay circuit CIR2 and a valve control circuit CIR3 control driving of an elevator as they are supplied electric power from a power source 3ΦAC200V at the time when the commercial power source is normal and carry out flooring control at the time of power failure by an instruction from a power failure time automatic flooring drive control circuit as they receive electric power from a battery BT at the time of power failure. Equipment in a block in a dotted line including CIR1-CIR3 are stored in a first control console, and equipment in a block in a dashed line including CIR4 are stored in a second control console. The second control console is arranged in a hydraulic power unit, and it is connected to the first control console by a connector.


Inventors:
ISHIMOTO SHIGERU
SAKAI YOSHIO
Application Number:
JP22180994A
Publication Date:
April 02, 1996
Filing Date:
September 16, 1994
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
B66B1/26; B66B5/02; B66B9/04; (IPC1-7): B66B5/02; B66B1/26; B66B9/04
Attorney, Agent or Firm:
Kenjiro Take