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. 05, 2008
Filed:
Jun. 14, 2005
Kazuhiko Shiroza, Ishikawa, JP;
Yukiyoshi Takayama, Ishikawa, JP;
Hiroaki Honma, Ishikawa, JP;
Seiji Seki, Ishikawa, JP;
Kazuhiko Shiroza, Ishikawa, JP;
Yukiyoshi Takayama, Ishikawa, JP;
Hiroaki Honma, Ishikawa, JP;
Seiji Seki, Ishikawa, JP;
Komatsu Ltd., Tokyo, JP;
KOMATSU Industries Corp., Tokyo, JP;
Abstract
A die cushion controlling apparatus for controlling an operation of a cushion pad, which comprises a pad drive mechanism for driving to raise or lower the cushion pad while applying an upward energizing force, a load measuring unit for measuring a load generated in the cushion pad, a time detecting unit for detecting a generating time and a vanishing time of the load, and a control unit for controlling the pad drive mechanism so that a load measured value measured by the load measuring unit follows a preset load pattern during a period from when the time detecting unit detects the generating time of the load until when the time detecting unit detects the vanishing time of the load.