Winch drum and crane provided therewith

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11247880
APP PUB NO 20210070590A1
SERIAL NO

16962446

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Importance

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Abstract

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An inner face of a flange of a winch drum is provided with a rope guide part that guides a rope portion in a higher layer such that the rope portion in the higher layer crosses a rope portion in a lower layer in a first crossing section, and a ridge line of the rope guide part has a shape that is displaced in a winding rotation direction with respect to a baseline passing through a rotation axis and an inner edge of the ridge line as proceeding from the inner edge to an outer edge.

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Patent Owner(s)

Patent OwnerAddress
KOBELCO CONSTRUCTION MACHINERY CO LTDHIROSHIMA 731-5161

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiwara, Hideaki Hyogo, JP 30 208
Iwashita, Hidekazu Hyogo, JP 2 3

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