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Title:
ELEVATOR CONSTRUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/091402
Kind Code:
A1
Abstract:
An elevator construction method in which a drill screw is screwed into an attachment member that is attached to a travel path of an elevator, and, by withdrawing the drill screw from the attachment member, a hole is formed in the part of the attachment member from which the drill screw is withdrawn.

Inventors:
KANAYAMA YASUHIRO (JP)
HIRANO KAORU (JP)
Application Number:
PCT/JP2020/041017
Publication Date:
May 05, 2022
Filing Date:
November 02, 2020
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
B66B7/00
Domestic Patent References:
WO2015029182A12015-03-05
Foreign References:
JP2019147645A2019-09-05
JPH0542274U1993-06-08
JPS5511480U1980-01-24
JP2019142618A2019-08-29
JP2019018928A2019-02-07
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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