Title:
SAFETY SYSTEM FOR ELEVATORS
Document Type and Number:
WIPO Patent Application WO/2008/068863
Kind Code:
A1
Abstract:
A section detecting device detects a section having a cage from a plurality of
sections continuing in the cage moving direction, and detects the presence or
absence of the cage at a switching position located at the boundary of the individual
sections. A movement detecting device generates a signal responding to the movement
of the cage. A processing device determines the speed of the cage on the basis of
the information from the movement detecting device, and determines the position
of the cage after the cage passed through the switching position. The processing
device is set with both a floor passing velocity standard containing a section
standard level determined individually for each section, and a continuous passing
velocity standard made at or higher than the floor passing velocity standard
for all the sections. The processing device specifies the section, in which the
cage resides when stopped, as a stop section, and decides whether or not the cage
velocity is the passing velocity, when the cage is within the stop section, by
comparing the floor passing velocity standard and the velocity of the cage, and
whether or not the cage velocity is the passing velocity, when the cage is outside
of the stop section, by comparing the continuous passing velocity standard and
the velocity of the cage.
Inventors:
KUGIYA TAKUO (JP)
OKAMOTO KEN-ICHI (JP)
KATO SATORU (JP)
OKAMOTO KEN-ICHI (JP)
KATO SATORU (JP)
Application Number:
PCT/JP2006/324358
Publication Date:
June 12, 2008
Filing Date:
December 06, 2006
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
KUGIYA TAKUO (JP)
OKAMOTO KEN-ICHI (JP)
KATO SATORU (JP)
KUGIYA TAKUO (JP)
OKAMOTO KEN-ICHI (JP)
KATO SATORU (JP)
International Classes:
B66B1/48; B66B5/06
Foreign References:
| JP2003095555A | 2003-04-03 | |||
| JPS5612281A | 1981-02-06 | |||
| JPS62218382A | 1987-09-25 | |||
| JPS5878976A | 1983-05-12 |
Other References:
See also references of EP 2090541A4
Attorney, Agent or Firm:
SOGA, Michiteru et al. (8th Floor Kokusai Building, 1-1, Marunouchi 3-chome, Chiyoda-k, Tokyo 05, JP)
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