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:
Apr. 28, 2009
Filed:
Aug. 21, 2007
Hiroichi Sakamoto, Inuyama, JP;
Hiroichi Sakamoto, Inuyama, JP;
Murata Kikai Kabushiki Kaisha, Kyoto-shi, JP;
Abstract
The present invention provides a linear motor mounted press machine which uses a boosting mechanism to enable machining with a greater press tonnage using a press driving source with relatively low power and which, for machining with a smaller press tonnage, enables efficient high-speed machining. A linear motor mounted press machine includes a boosting mechanismhaving an output portion that performs a rectilinear reciprocating operation, a first linear motorcoupled to an output portion of the boosting mechanism, a second linear motorhaving an output shaft that drives a press toolforward and backward, and a coupling switching mechanism. The coupling switching mechanismreleasably couples the output shaft of the second linear motorto the output portion of the boosting mechanism. The boosting mechanismis a toggle-type link mechanism or the like. A servo motor and a crank mechanism or the like may be used in place of the first linear motor