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:
Jul. 30, 2002
Filed:
Nov. 20, 2000
Hiroshi Aratani, Hiroshima, JP;
Hisao Matsushima, Hiroshima, JP;
Mikio Yamamoto, Hiroshima, JP;
Yoshiki Mito, Hiroshima, JP;
Mitsubishi Heavy Industries, Ltd, Tokyo, JP;
Abstract
In a roll changing apparatus of a rolling mill, a stationary roll changing table is provided on a front surface of a work side of the rolling mill. Pull-out rails and upwardly and downwardly movable shift rails are provided on the roll changing table. Shift blocks are provided for detachably attaching to a work roll assembly which has been pulled out, to move the work roll assembly sideways in a shifting direction. Only the work roll assembly to be pulled out can be shifted easily, and replaced with a new work roll assembly without the use of an elaborate foundation structure. Thus, work rolls can be changed swiftly.