Container spreader for linking a container with a hoisting installation
AssigneeVdl Containersystemen BV
InventorOlaf Johannes BOERBOOM
Life of this patent
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Abstract
A container spreader for coupling a container with a hoisting installation has a number of assemblies of a guiding plate and a displacing device connected thereto, for displacing the guiding plate between an active position A and an inactive position B. The displacement device has a hydraulic swivel motor provided with an output shaft which is connected to the guide plate via connecting elements. A hydraulic unit is coupled to the swivel motor via coupling device for supplying and discharging hydraulic oil from and to the swivel motor. By applying a hydraulic swivel motor, a final transmission can be omitted and no valves are required for keeping the hydraulic motor at pressure. As a result, an energy-efficient and inexpensive assembly has been obtained.
Claims5
A container spreader (1) for coupling a container with a hoisting installation, comprising a lifting frame (3) provided with coupling means (5) for coupling to the hoisting installation, and a number of guide plates (9) connected to the lifting frame for guiding the container spreader during coupling of the container spreader with a container, which guide plates are each connected to a separate hydraulic swivel motor (13) which can move the guide plate connected thereto between an active position (A), in which the guide plates guide the container spreader to the container, and an inactive position (B), in which the guide plates are folded away so that they cannot come into contact with the container, wherein each hydraulic swivel motor (13) is connected to a separate hydraulic pump (21) which is connected to a separate electric motor (19), the hydraulic swivel motor with the hydraulic pump and the electric motor forming an assembly, and wherein each assembly is connected to one of the guide plates (9).
Dependencies are inferred from the claim text.