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. 20, 2002
Filed:
Nov. 26, 2001
Kenji Kawamoto, Hiroshima, JP;
Satoshi Mizukawa, Hiroshima, JP;
Shouzou Fujiwara, Hiroshima, JP;
Aturo Akiyama, Hiroshima, JP;
Kobelco Construction Machinery Co., Ltd., Hiroshima, JP;
Abstract
A construction machine having a device for attaching and detaching a counterweight according to the present invention comprises a lower traveling body; an upper rotating body mounted rotatably on the lower traveling body; the upper rotating body having a support bed standing out from a rear part thereof; and a device for attaching and detaching a counterweight mounted on the support bed. The attaching and detaching device comprises a telescoping device having a lower end pivotally connected in the vicinity of the support bed, a restiform body suspended through a guide portion provided on the telescoping device; and oscillating structure for oscillating the telescoping device around the lower end as fulcrum. The oscillating structure displaces the telescoping device extended from a substantially vertical attitude to an inclined attitude when the counterweight is detached. According to the present invention, an inclined bed is not required, and locating of the counterweight to the support bed can be done easily.