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. 26, 2008
Filed:
Aug. 26, 2005
Shoji Futamura, Atsugi, JP;
Keizo Ohtani, Atsugi, JP;
Shoji Futamura, Atsugi, JP;
Keizo Ohtani, Atsugi, JP;
Hoden Semitsu Kako Kenkyusho Co., Ltd., Kanangawa, JP;
Abstract
In a press device for pressing a slider with a plurality of motors as driving sources, pressing is performed while a slider is kept horizontal even if an eccentric load is applied. In this press device, in the teaching stage, when the eccentric load is to be applied, a degree of shortage of a driving torque in each of the driving sources is determined at each timing when the eccentric load is applied so that a torque addition signal for compensating for the torque shortage is supplied to the respective corresponding driving sources corresponding to the respective timing during the actual machining