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:
Oct. 07, 2014
Filed:
May. 07, 2009
Takuji Miyasaka, Komatsu, JP;
Hirohide Sato, Komatsu, JP;
Shigeo Morimoto, Yokohama, JP;
Hiroyuki Ito, Yokohama, JP;
Takeo Arikabe, Hiratsuka, JP;
Shyoji Watanabe, Komatsu, JP;
Shigenori Nagashima, Komatsu, JP;
Takuji Miyasaka, Komatsu, JP;
Hirohide Sato, Komatsu, JP;
Shigeo Morimoto, Yokohama, JP;
Hiroyuki Ito, Yokohama, JP;
Takeo Arikabe, Hiratsuka, JP;
Shyoji Watanabe, Komatsu, JP;
Shigenori Nagashima, Komatsu, JP;
Komatsu Ltd., Tokyo, JP;
Komatsu Industries Corporation, Ishikawa, JP;
Abstract
A die cushion device includes a cushion pad, a support section, a servomotor, and a shock absorber device. The support section supports the cushion pad. The servomotor raises and lowers the support section for raising and lowering the cushion pad. The shock absorber device includes a damping section and relieves shock between the cushion pad and the support section. The damping section generates reaction force in accordance with the relative speed of the cushion pad with respect to the support section.