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:
Oct. 07, 2025
Filed:
Mar. 18, 2020
Kobelco Construction Machinery Co., Ltd., Hiroshima, JP;
Keiko Inada, Hyogo, JP;
Yasuo Ichikawa, Hyogo, JP;
Tetsuya Kobatake, Hyogo, JP;
Takuya Watanabe, Hyogo, JP;
KOBELCO CONSTRUCTION MACHINERY CO., LTD., Hiroshima, JP;
Abstract
Provided is a handrail device in first and second unit booms adjacent to each other, having high strength. The handrail device includes: a pair of first poles; a pair of second poles; a first main rope stretched between the pair of first poles; a second safety line stretched between the pair of second poles; a first pole support member and a second pole support member that support the first poles and the second poles, respectively; first and second connection member; a first stay rope stretched between the first pole and the second connection member; and a second stay rope stretched between the second pole and the first connection member. The first pole support member and the first connection member are fixed to a common first fixation member, and a second pole support member and the second connection member are fixed to a common second fixation member.