Winch having a multiple diameter drum
AssigneeLewmar Marine Limited
InventorPhilip Atfield
Life of this patent
Estimating the term…
Abstract
A winch has two portions of respectively different diameters. A ridge between them permits line to be flipped from the larger diameter portion to the other. Surface treatments of the two portions may be different, with that on the larger diameter portion being less aggressive than that on the smaller.
Claims9
A winch for hauling a line, the winch comprising a drum rotatable about an axis of rotation, the drum engaging the line and comprising a first drum portion having a diameter and a second drum portion having a diameter smaller than the diameter of the first drum portion and a projection projecting between them radially of the axis, the line when on the drum being transferable past the projection from the first drum portion to the second drum portion, the drum portions having respectively different surface treatments, the surface treatment of the first drum portion giving a less aggressive grip than that of the second drum portion.
A winch comprising a drum rotatable about an axis of rotation and a line wound on the drum, the drum engaging the line to be hauled and comprising a first drum portion having a diameter and a second drum portion having a diameter smaller than the diameter of the first drum portion and a projection projecting between them radially of the axis, the projection projecting to a radial extent such that the line is transferable past the projection from the first drum portion to the second drum portion, the radial extent of the projection beyond the first drum portion being less than the radius of the line, the drum portions having respectively different surface treatments, the surface treatment of the first drum portion giving a less aggressive grip than that of the second drum portion.
Dependencies are inferred from the claim text.