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:
Mar. 29, 2011
Filed:
Jun. 01, 2006
Makoto Aoki, Isehara, JP;
Hiroyuki Mizushima, Isehara, JP;
Nobuaki Ariji, Isehara, JP;
Shigeki Noguchi, Isehara, JP;
Makoto Aoki, Isehara, JP;
Hiroyuki Mizushima, Isehara, JP;
Nobuaki Ariji, Isehara, JP;
Shigeki Noguchi, Isehara, JP;
Amada Company, Limited, Kanagawa, JP;
Abstract
A ram driving method including the steps of fixing one end of a large-diameter piston rod integral with a large-diameter piston reciprocably included in a large-diameter cylinder attached integrally to a ram to a fixing unit, connecting one end of a small-diameter piston rod integral with a small-diameter piston reciprocably included in a small-diameter cylinder integral with the large-diameter cylinder to a moving member moved by a motor driving, integrally moving the small-diameter cylinder and the small-diameter piston and communicating a first compartment and a second compartment of the large-diameter cylinder divided by the large-diameter piston with each other, moving the ram integrally with the small-diameter piston rod moved by the moving member, and communicating the small-diameter cylinder with the large-diameter cylinder, thereby moving the large-diameter cylinder with a strong force by a working fluid supplied from the small-diameter cylinder.