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:
Feb. 02, 1999
Filed:
Nov. 03, 1997
Takayuki Nakano, Kyoto, JP;
Takayuki Tanaka, Kyoto, JP;
Kabushi Kaisha Sakamura Kikai Seisakusho, Osaka, JP;
Abstract
The invention provides a work transfer in a multi-stage forging apparatus for stepwise forging a work into a refined product. The work transfer has an open-close type chuck which is, with its pair of finger members, suitable for grasping such a work whose diameter at its midportion is smaller than that at its endportions. The work transfer is, in addition to the chuck open-close mechanism, provided with the chuck approach-recede mechanism for a work extract-insert function, which moves the chuck so that the finger members of the chuck may approach to and recede from a front face of a die. The work transfer comprises a single camshaft rotating synchronously with a forging motion, and both the chuck open-close mechanism and the chuck approach-recede mechanism are operated by the single rotation of the camshaft.