Patent · US Expired

Hoisting gear on the trolley of a container crane

US5314262A · kind A · utility

12Cited by
4References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 17, 1992
Grant dateMay 24, 1994
Priority date
Expiry dateDec 17, 2012

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66C1/101
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A hoisting arrangement for a trolley (1) of a container crane with two motor-driven cable drums (2a, 2b), with cable rollers (4a-4d) arranged on the roller traverse (5), and with hoisting cables (3a-3d) guided between the cable fixed points (8a-8d) and the cable drums (2a, 2b). Hoisting arrangement provides cable drums (2a) and (2b) arranged, together with their drives (6a, 6b, 7a, 7b), offset in parallel by the drum diameter (12). A maximum cable distance (10) with fully wound cable drum (2a, 2b) is provided to correspond approximately to the distance (11) of the cable roller pairs (4a, 4b) and (4c, 4d) on the roller traverse (5), as well as approximately to the distance (9) of the cable fixed points (8a, 8b) and (8c, 8d) on the trolley frame (1). The cable drums (2a, 2b) are of double-thread design. During lowering, the cables (3a, 3b, 3c, 3d) run on the cable drums (2a, 2b) in the inward direction and define the cable runoff path (15).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.