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:
Aug. 19, 2008
Filed:
Mar. 07, 2006
Takahiro Hanamoto, Akashi, JP;
Takahiro Hanamoto, Akashi, JP;
Kobelco Cranes Co., Ltd., Tokyo, JP;
Abstract
A construction machine includes a vertical separating/connecting device interposed between a lower traveling body and a swing bearing that supports an upper rotating body. The device includes an externally toothed ring member fixed to the swing bearing with a first attaching unit, a rotating unit that rotates the externally toothed ring member, an internally toothed ring member fixed to the lower traveling body with a second attaching unit positioned on an attachment pitch circle having the same diameter and center as an attachment pitch circle of the first attaching unit, and a fixing unit that fixes the externally toothed ring member or the internally toothed ring member. Internal teeth of the internally toothed ring member and external teeth of the externally toothed ring member are positioned so as to allow the movement of the external teeth or to engage with each other when the externally toothed ring member is rotated.