Title:
APPARATUS FOR REMOVING LARGE-WEIGHT OBJECT LIFTING MEMBERS
Document Type and Number:
WIPO Patent Application WO/1994/026647
Kind Code:
A1
Abstract:
Upper wires (28) are provided between a base (12) and the hook (31a) of a crane (31), and lower wires (32) the base end portions of which are secured to the base are engaged with lifting member locking portions (11a) of a large-weight object (11), rings (32a) at the upper ends of the lower wires (32) being fitted around a mast (17) provided upright on the base. A slider (18) fitted slidably around the mast is pushed up by a first resilient member so that the upper end of the slider is flush with at least that of the mast in a no-load condition a slider lowering means (33) overcoming the resilient force of the first resilient member to lower the slider. A locking means temporarily fixes the slider lowering means with the slider in a lowered state, and an unlocking means disengages the locking means. The lower lifting members can be removed automatically from the large-weight object lowered to a predetermined place. A large-weight object of any shape can be lifted and lowered to a predetermined place without damaging the tension members, and an operation for hanging tension members on a hook of a crane becomes unnecessary.
Inventors:
TAKAI SEIICHIRO (JP)
Application Number:
PCT/JP1994/000689
Publication Date:
November 24, 1994
Filing Date:
April 26, 1994
Export Citation:
Assignee:
TOTETU MFG CO LTD (JP)
TAKAI SEIICHIRO (JP)
TAKAI SEIICHIRO (JP)
International Classes:
B66C1/12; B66C1/10; B66C1/34; B66C1/38; (IPC1-7): B66C1/12; B66C1/34
Foreign References:
| JPH0517095A | 1993-01-26 | |||
| JPS55132084U | 1980-09-18 | |||
| JPS5668780U | 1981-06-08 |
Other References:
See also references of EP 0650919A4
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