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:
Jun. 14, 2011
Filed:
Jan. 12, 2006
Kiyokazu Baba, Komatsu, JP;
Hiroaki Honma, Komatsu, JP;
Masahide Sunata, Komatsu, JP;
Hajime Yoshida, Komatsu, JP;
Hirohide Satou, Komatsu, JP;
Kiyokazu Baba, Komatsu, JP;
Hiroaki Honma, Komatsu, JP;
Masahide Sunata, Komatsu, JP;
Hajime Yoshida, Komatsu, JP;
Hirohide Satou, Komatsu, JP;
Komatsu Ltd., Tokyo, JP;
Komatsu Industries Corp., Tokyo, JP;
Abstract
A pressing machineincludes: a bedon which a die-cushion deviceis provided; and a bolsterprovided on the bed. The bedhas an inner spacein which a die-cushion padof the die-cushion deviceis lifted up and down. A supporting portionpenetrating the die-cushion padin a lifting direction and supporting a lower surface of the bolstervia a carrieris provided in the inner space. With this arrangement, since the bolsteris supported by the supporting portion, the bolstercan be prevented from being flexed during a press forming operation, whereby a highly accurate press forming operation can be realized. In addition, since the supporting portionpenetrates the die-cushion pad, unlike conventional arrangements, the die-cushion paddoes not need to be divided, whereby a complication of the arrangement can be avoided.