The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
Jan. 11, 2019
Applicant:
Kobelco Construction Machinery Co., Ltd., Hiroshima, JP;
Inventors:
Hidekazu Iwashita, Hyogo, JP;
Hideaki Fujiwara, Hyogo, JP;
Assignee:
KOBELCO CONSTRUCTION MACHINERY CO., LTD., Hiroshima, JP;
Primary Examiner:
Int. Cl.
CPC ...
B66D 1/30 (2006.01); B66D 1/36 (2006.01); B66C 23/36 (2006.01);
U.S. Cl.
CPC ...
B66D 1/30 (2013.01); B66C 23/36 (2013.01); B66D 1/36 (2013.01); B66D 2700/0191 (2013.01);
Abstract
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.