Title:
ELEVATOR DEVICE AND REPAIR METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2023/223554
Kind Code:
A1
Abstract:
This repair method for an elevator device includes: a rail shortening step for lowering the height of a pair of balance weight guide rails from a bottom section of a hoistway when compared to the height before a repair; a hoisting machine installation step for supporting a repaired hoisting machine with at least one of the pair of balance weight guide rails at a location higher than the raising/lowering stroke of a balance weight; and a winding step for winding a suspended body so that the movement speed of the balance weight with respect to the rotation speed of a drive sheave is lower than the movement speed of the car with respect to the rotation speed of the drive sheave.
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Inventors:
OKADA DAISUKE (JP)
KOIDE YASUYUKI (JP)
TAKAHASHI YOSHINAO (JP)
MOTOMURA KOICHI (JP)
AMANO MASAHIRO (JP)
SHIMIZU KEISUKE (JP)
OKUMURA KOTA (JP)
KOIDE YASUYUKI (JP)
TAKAHASHI YOSHINAO (JP)
MOTOMURA KOICHI (JP)
AMANO MASAHIRO (JP)
SHIMIZU KEISUKE (JP)
OKUMURA KOTA (JP)
Application Number:
PCT/JP2022/020983
Publication Date:
November 23, 2023
Filing Date:
May 20, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B7/00; B66B7/02; B66B7/06
Domestic Patent References:
| WO2015025396A1 | 2015-02-26 |
Foreign References:
| JP2000351552A | 2000-12-19 | |||
| JP2015229567A | 2015-12-21 | |||
| JPH11349255A | 1999-12-21 | |||
| JPH1160117A | 1999-03-02 | |||
| JP2008150213A | 2008-07-03 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
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