Title:
HOIST, ELEVATOR DEVICE USING SAME, AND PULLEY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/255285
Kind Code:
A1
Abstract:
Provided is a hoist configured to enable a simple replacement work when replacing a sheave due to wear of a groove. To this end, this hoist is provided with: a disk fixed to the outer circumferential surface of a main shaft; a pedestal for supporting one end of the main shaft; a housing for supporting the other end of the main shaft; a sheave attached to one surface side of the disk and having a groove section on the outer circumferential surface thereof; a rotor attached to the other surface side of the disk; and a stator attached to the housing so as to face the rotor, wherein the sheave is configured to have an annular overall shape by combining a plurality of arc-like sheaves.
Inventors:
YAMAMOTO HIROTSUGU (JP)
NISHINO YOSHINOROI (JP)
IGARASHI AKITOMO (JP)
NISHINO YOSHINOROI (JP)
IGARASHI AKITOMO (JP)
Application Number:
PCT/JP2019/024226
Publication Date:
December 24, 2020
Filing Date:
June 19, 2019
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B66B11/08; B66B7/06
Domestic Patent References:
| WO2014065183A1 | 2014-05-01 | |||
| WO2002064483A1 | 2002-08-22 |
Foreign References:
| JP2018177415A | 2018-11-15 | |||
| JP2016204086A | 2016-12-08 | |||
| JPS59195248U | 1984-12-25 | |||
| JP2018039579A | 2018-03-15 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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