Global Patent Index - EP 2025430 A1

EP 2025430 A1 2009-02-18 - Clutch gear manufacturing apparatus and clutch gear manufacturing method

Title (en)

Clutch gear manufacturing apparatus and clutch gear manufacturing method

Title (de)

Vorrichtung zur Herstellung eines Kupplungsgetriebes und Verfahren zur Herstellung eines Kupplungsgetriebes

Title (fr)

Appareil et procédé de fabrication de pignons d'embrayage

Publication

EP 2025430 A1 (EN)

Application

EP 08014089 A

Priority

JP 2007210522 A

Abstract (en)

A clutch gear manufacturing apparatus includes a die (16) that allows a clutch gear primary product (Wb), which has spline teeth (1) with chamfers (1a) formed in an outer peripheral surface of the primary product (Wb), to be disposed in the die (16), and includes a blade(16a) capable of forming reverse tapers (1b) at the spline teeth (1); a punch (18) capable of pressing down the primary product (Wb) disposed in the die (16) so that the spline teeth (1) are pressed by the blade (16a); a knockout sleeve (17) that receives the primary product (Wb) which is pressed down by the punch (18); and a punch pin (31) that forms a cone hole (4) in a side surface of the primary product (Wb) while the spline teeth (1) are pressed by the blade (16a).

IPC 8 full level (invention and additional information)

B21K 1/30 (2006.01); B21D 28/32 (2006.01)

CPC (invention and additional information)

B21K 1/30 (2013.01); B21J 5/027 (2013.01)

Citation (applicant)

JP H0698451 B2 19941207

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB

Designated extension state (EPC)

AL BA MK RS

EPO simple patent family

EP 2025430 A1 20090218; EP 2025430 B1 20100217; CN 101362181 A 20090211; CN 101362181 B 20110608; DE 602008000657 D1 20100401; ES 2339824 T3 20100525; JP 2009039781 A 20090226; JP 4368394 B2 20091118

INPADOC legal status


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- Countries: AL BA MK RS