Crane trolley with low overall height

Details Crane trolley with low overall height Crane trolley with low overall height

2007-06-26

2007-06-26

Morano, S. Joseph (Department: 3617)

Railways

Trolley transfer

Overhead crane

Reexamination Certificate

active

10945583

ABSTRACT:
A crane trolley, especially a single-rail trolley with a short overall height, with a traveling mechanism frame (2) having a hoisting mechanism (1), which can travel by running wheels (3, 3a) on a rail, especially a lower flange (4a) of an essentially horizontal beam (4), wherein at least one running wheel (3a) can be driven, and a friction roller (10) interacting with the driven running wheel (3a) is arranged on the underside (4b) of the rail. In order to create a crane trolley that guarantees a reliable reduction in the slippage of the driven running wheel (3a) with a simple design, a pair of friction rollers (10) is provided, which may be positioned against the underside (4b) of the rail by adjusting the spacing from each other via a common pressing mechanism.

REFERENCES:
patent: 3074354 (1963-01-01), Wakkila
patent: 3212455 (1965-10-01), Workman
patent: 3353503 (1967-11-01), Pettit
patent: 3854407 (1974-12-01), Cocroft
patent: 5213045 (1993-05-01), Gersemsky
patent: 5228961 (1993-07-01), Sakai
patent: 5419260 (1995-05-01), Hamilton
patent: 6840393 (2005-01-01), Tu
patent: 0620179 (1998-06-01), None
European Search Report completed Jan. 31, 2006, from corresponding European Application No. EP 04 02 2510.

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