Title:
MANY SECTION LINER TYPE CRANE BOOM
Document Type and Number:
Japanese Patent JPS5751694
Kind Code:
A
Abstract:
To resist side deflection and buckling of the top and side plates in larger size multi-section telescopic crane booms, top plate lateral supports for the movable boom sections in the fully extended and fully retracted critical zones are provided to supplement the action of bottom lateral wear pads. The top plate lateral supports include adjustable spring bars on the sides and forward ends of the boom sections and coacting cam pads on the top plates of the boom sections at their forward ends and in the socketing zones when the boom sections are fully extended.
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Inventors:
SUTANREE AARU SUPEIN
UIRIAMU JII REICHIYAADO
UIRIAMU JII REICHIYAADO
Application Number:
JP12541881A
Publication Date:
March 26, 1982
Filing Date:
August 12, 1981
Export Citation:
Assignee:
KITSUDEE INC
International Classes:
B66C23/697; B66C23/70; (IPC1-7): B66C23/42
Domestic Patent References:
| JPS471713U | 1972-08-19 | |||
| JPS4816268A | ||||
| JPS5369356A | 1978-06-20 |