Title:
CARGO HANDLING MACHINE AND CONTROL METHOD OF CARGO HANDLING MACHINE
Document Type and Number:
Japanese Patent JP2018150157
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cargo handling machine capable of performing stable operation.SOLUTION: A control device 28 applies, to the right side of Pud-as=P0+Wud/(1+s*A/g)*h, a weight Wud during acceleration measured by a load sensor 12 and an acceleration vertical component A measured by an acceleration sensor 11 that are respectively provided in a holding device 7, a non-load balance pressure P0 and a proportional constant h that are respectively measured in advance, and an auxiliary force adjustment constant s stored in a storage device 31. The thus-obtained adjustment balance pressure Pud-as during acceleration is set to the pressure of a cylinder chamber 23. The adjustment balance pressure Pud-as during acceleration is closer to the balance pressure Pus in standstill than the balance pressure Pud during acceleration, so that the operation of a cargo handling machine 1 becomes stable.SELECTED DRAWING: Figure 2
Inventors:
WATANABE KAZUYUKI
Application Number:
JP2017048549A
Publication Date:
September 27, 2018
Filing Date:
March 14, 2017
Export Citation:
Assignee:
TOYO KOKEN KK
International Classes:
B66F19/00
Domestic Patent References:
| JP2010241518A | 2010-10-28 | |||
| JP2015129045A | 2015-07-16 | |||
| JPH10182100A | 1998-07-07 | |||
| JPH0592900A | 1993-04-16 | |||
| JPH01197300A | 1989-08-08 |
Foreign References:
| US20090013860A1 | 2009-01-15 | |||
| US6370970B1 | 2002-04-16 |
Attorney, Agent or Firm:
Shigeo Ishijima
Hideki Abe
Hideki Abe