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:
May. 19, 2015
Filed:
Nov. 19, 2010
Tadashi Okumura, Konan, JP;
Nobuyasu Nishihata, Konan, JP;
Kenji Tasaki, Konan, JP;
Gohsyu Corporation, Shiga, JP;
Abstract
[Problem] To present a manufacturing apparatus of a plate-like tooth profile member capable of forging and forming in one process by using a closed type die, being hardly accompanied by burrs due to plastic changes in the circumferential direction and in the axial direction of the material of the plate-like tooth profile member. [Solving Means] Consisting of an upper dieand a lower dieof closed type, the lower dieis composed of a tooth diefor forming a tooth portion in a material W of a plate-like tooth profile member, and movable diesmovable relatively in a vertical direction to the tooth diedisposed at both sides in the axial direction of the material W of the plate-like tooth profile member of the tooth die, a first stroke is executed for confining the circumference at both end portions in the axial direction of the material W of the plate-like tooth profile member by the upper dieand the movable dies, and a second stroke is executed for forming a tooth portion in the material W of the plate-like tooth profile member by the upper dieand the tooth die