Title:
HOIST AND ELEVATOR
Document Type and Number:
WIPO Patent Application WO/2023/175882
Kind Code:
A1
Abstract:
Provided are a hoist and an elevator capable of stabilizing a cooling effect. The hoist comprises a housing provided with a plurality of stators, a main shaft supported by the housing, and a rotational solid that is supported by the main shaft and that rotates with respect to the housing. The rotational solid has a boss portion fitted to the main shaft, a rotating plate portion, a peripheral wall portion, and a plurality of ribs. The rotating plate portion has an intake hole for taking in air from the outside to the housing side. The housing has an exhaust hole located outside the intake hole in the radial direction of the main shaft. At a corner formed by the inner surface of the rotating plate portion and the inner peripheral surface of the peripheral wall portion, there is formed an air guide portion, which is a curved surface that guides the air entering the housing from the intake hole toward the stators.
Inventors:
NAKAYAMA MASATO (JP)
Application Number:
PCT/JP2022/012556
Publication Date:
September 21, 2023
Filing Date:
March 18, 2022
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B66B11/04; B66B11/08
Foreign References:
| CN215207968U | 2021-12-17 | |||
| JPH09117101A | 1997-05-02 | |||
| JP2006081305A | 2006-03-23 | |||
| JP2016105668A | 2016-06-09 | |||
| JPH10225026A | 1998-08-21 |
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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