Crane boom top plate lateral support

Details Crane boom top plate lateral support Crane boom top plate lateral support

B - Operations, Transporting

66

C

212/28.4

B66C 23/04 (2006.01) B66C 23/70 (2006.01)

Patent

CA 1174644

CRANE BOOM TOP PLATE LATERAL SUPPORT Abstract To resist side deflection and buckling of the top (26-26d) and side plates in larger size multi- section telescopic crane booms, top plate lateral supports (37) for the movable boom sections (21,22, 23,24) in the fully extended and fully retracted critical zones are provided to supplement the action of bottom lateral wear pads (36). The top plate lateral supports (37) include adjustable spring bars (41) on the sides and forward ends of the boom sec- tions and coacting cam pads (47,48) on the top plates (26a,26b,26c,26d) of the boom sections, at their for- ward ends for when the boom sections are fully re- tracted, and in the socketing zones for when the boom sections are fully extended.

383518

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