Title:
CRANE AND METHOD FOR OPERATING THE SAME
Document Type and Number:
WIPO Patent Application WO/1997/048635
Kind Code:
A1
Abstract:
An object of the invention is to stop the sway of a hoisting accessory in a short time. A hoisting rope (32) is secured to an auxiliary tower (21) via a sheave (101) of a main tower (20), a sheave (102) of an auxiliary trolley (26), a sheave (103) of a hoisting accessory (40), a sheave of a main trolley (25), a sheave (105) of the hoisting accessory (40) and a sheave (106) of the main trolley (25). The number of ropes between the auxiliary trolley (26) and the hoisting accessory (40) is smaller than that between the main trolley and the hoisting accessory (40). The running speed of the main trolley (25) is higher than that of the auxiliary trolley (26) during the distance from the main tower (20) side to the auxiliary tower (21) side.
Inventors:
SUGANO MASASHI (JP)
YAMASHITA KIYOSHI (JP)
MURATA HIRONOBU (JP)
GOMI KIYOSHI (JP)
YAMASHITA KIYOSHI (JP)
MURATA HIRONOBU (JP)
GOMI KIYOSHI (JP)
Application Number:
PCT/JP1996/001723
Publication Date:
December 24, 1997
Filing Date:
June 21, 1996
Export Citation:
Assignee:
HITACHI LTD (JP)
SUGANO MASASHI (JP)
YAMASHITA KIYOSHI (JP)
MURATA HIRONOBU (JP)
GOMI KIYOSHI (JP)
SUGANO MASASHI (JP)
YAMASHITA KIYOSHI (JP)
MURATA HIRONOBU (JP)
GOMI KIYOSHI (JP)
International Classes:
B66C13/06; B66C21/00; (IPC1-7): B66C13/06; B66C13/22; B66C21/00
Foreign References:
| JPS582916B2 | 1983-01-19 | |||
| JPS6313986U | 1988-01-29 | |||
| JPS4878644A | 1973-10-22 | |||
| JPH03158390A | 1991-07-08 | |||
| JPS5063928U | 1975-06-10 |
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