METHOD FOR APPLYING CONSTRUCTION ELEVATOR LIFTING HEIGHT EXTENSION TECHNOLOGY

WIPO Patent Application WO/2020/035933

A1

Provided is a method for applying a construction elevator lifting height extension technology, said method allowing the removal of a restriction on the maximum height for which service is possible in a construction elevator. This method for applying a construction elevator lifting height extension technology comprises: a first raising/lowering range extension step in which at least one of a cage buffer (8) and a counterweight buffer (9) is installed and the relative position of a machine room unit (3) is raised, said relative position being with regard to a pit unit (7) that can lift and lower a hoistway below the machine room unit (3); a raising/lowering range shifting step in which the raising/lowering range is shifted in accordance with the progress of building construction, by raising the pit unit (7) in the direction in which the machine room unit (3), which has a temporary traction machine (4) installed therein, rises; and a second raising/lowering range extension step in which a permanent traction machine (14) is installed, and the position of the pit unit (7) is lowered, or a new pit machine is installed.

ASAI TAKAYUKI (JP)
KODAIRA DAITO (JP)
IMURA MITSUYOSHI (JP)
OGIWARA MAKOTO (JP)
ANDO EIJI (JP)
KURAOKA HISAO (JP)
KONDO RIKIO (JP)
FURUZAWA HISASHI (JP)

PCT/JP2018/030449

February 20, 2020

August 16, 2018

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MITSUBISHI ELECTRIC CORP (JP)

B66B9/187; B66B5/28

US3759349A	1973-09-18
JPS5742483A	1982-03-10
JPH04243788A	1992-08-31
JP2012206857A	2012-10-25
JPS5612285A	1981-02-06
US20120291395A1	2012-11-22

TAKADA, Mamoru et al. (JP)

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