Title (en)

FLOWTURNING DEVICE AND METHOD FOR PRODUCING INTERNAL GEARED WHEELS WITH TWO SETS OF INNER TOOTHING

Title (de)

DRÜCKWALZVORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG VON HOHLRÄDERN MIT ZWEI INNENVERZAHNUNGEN

Title (fr)

DISPOSITIF DE FLUOTOURNAGE ET PROCEDE POUR LA FABRICATION D'ENGRENAGES A DEUX DENTURES INTERIEURES

Publication

EP 1017518 B1 20020327 (DE)

Application

EP 98925614 A 19980514

Priority

• DE 19722359 A 19970528
• EP 9802922 W 19980514

Abstract (en)

[origin: DE19722359A1] The invention relates to a flowturning device (1; 101) for producing an internal geared wheel (17) with inner toothing, one set of which is slanted. The workpiece (9) is held by a retaining member (16; 116) during shaping of the first inner toothing. The workpiece (9) is held by the first toothing on the first shaping tool (2; 102) during shaping of the second inner toothing. Once the internal geared wheel (17) has been finished, the rotational coupling between both shaping tools (2, 4; 102, 104) is detached. The internal geared wheel (17) is detached from the slanted toothing(s) by means of a stripping member (18).

IPC 1-7

B21H 5/02; B21K 1/30; B21J 5/12

IPC 8 full level

B21D 22/16 (2006.01); B21H 5/02 (2006.01); B21H 7/18 (2006.01); B21J 5/12 (2006.01); B21K 1/30 (2006.01); B21H 1/04 (2006.01); B21H 3/08 (2006.01)

CPC (source: EP US)

B21D 22/16 (2013.01 - EP US); B21H 5/025 (2013.01 - EP US); B21H 7/187 (2013.01 - EP US); B21H 1/04 (2013.01 - EP US); B21H 3/08 (2013.01 - EP US); Y10T 29/49471 (2015.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI NL SE

DOCDB simple family (publication)

US 6253589 B1 20010703; AT E214987 T1 20020415; DE 19722359 A1 19981203; DE 59803553 D1 20020502; EP 1017518 A1 20000712; EP 1017518 B1 20020327; JP 2002500564 A 20020108; WO 9853934 A1 19981203

DOCDB simple family (application)

US 42474400 A 20000331; AT 98925614 T 19980514; DE 19722359 A 19970528; DE 59803553 T 19980514; EP 9802922 W 19980514; EP 98925614 A 19980514; JP 50018199 A 19980514