CONSTRUCTION ELEVATOR LIFTING HEIGHT EXTENSION METHOD AND ELEVATOR ROPE LOWERING JIG

WIPO Patent Application WO/2020/035930

A1

Provided are a construction elevator lifting height extension method and an elevator rope lowering jig that can reduce the damping force that is necessary in order to control the movement amount and speed of a rope when a raising/lowering range is extended. This construction elevator lifting height extension method comprises: a rope re-hanging step in which a rope (8) is removed from a suspension sheave (7) of a second raising/lowering body (2) and re-hung on a rope lowering jig (18) that is lighter than the suspension sheave (7) of the second raising/lowering body (2); a raising step in which, after the rope re-hanging step, a machine room unit (3) is raised; a jig lowering step in which, after the raising step, the rope lowering jig (18) is lowered by letting out the rope (8) from a plurality of rope drums (12); and a rope return step in which, after the jig lowering step, the rope (8) is removed from the rope lowering jig (18) and re-hung on the suspension sheave (7) of the second raising/lowering body (2).

JP2540130	[Name of invention] Gate structure of lifting lift
WO/2016/068499	UP/DOWN MOVEMENT GUIDE ROLLER FOR LIFT AND METHOD FOR MANUFACTURING SAME

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/JP2018/030443

February 20, 2020

August 16, 2018

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MITSUBISHI ELECTRIC CORP (JP)

B66B9/187; B66B7/06

WO2017183189A1

2017-10-26

JPS52113968U	1977-08-30
JPS48110870U	1973-12-20
JP2000344440A	2000-12-12
JPS5161934A	1976-05-28

TAKADA, Mamoru et al. (JP)

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