Title:
HOIST SETTING METHOD AND HOIST
Document Type and Number:
WIPO Patent Application WO/2023/100166
Kind Code:
A1
Abstract:
This method for setting a hoist that is equipped with an encoder for detecting the rotation speed of a drive motor and that lifts and lowers an article by rotating a load sheave using a driving force of the drive motor so as to roll up and roll down a load chain, the method comprising: a drive step for driving the drive motor at a constant rotation speed while applying a tensile force to the load chain; a storage step for storing, in a storage means, positional information obtained from the encoder in the drive step and a motor torque command value for controlling the drive motor in association with said positional information; and a speed correction curve calculation step for calculating a speed correction curve for driving the drive motor on the basis of cyclical variations in the motor torque command value stored in the storage step.
Inventors:
NISHIKAWA KAZUHIRO (JP)
Application Number:
PCT/IB2022/062344
Publication Date:
June 08, 2023
Filing Date:
December 16, 2022
Export Citation:
Assignee:
KITO KK (JP)
International Classes:
B66D3/20
Foreign References:
| JP2012001323A | 2012-01-05 | |||
| JP2015117092A | 2015-06-25 | |||
| JP2017193440A | 2017-10-26 | |||
| JP2004299908A | 2004-10-28 | |||
| US6351096B1 | 2002-02-26 |
Attorney, Agent or Firm:
IAT WORLD PATENT LAW FIRM (JP)
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