Global Patent Index - EP 1027179 A1

EP 1027179 A1 2000-08-16 - METHOD AND DEVICE FOR PRODUCING A TOOTHED WHEEL

Title (en)

METHOD AND DEVICE FOR PRODUCING A TOOTHED WHEEL

Title (de)

VERFAHREN UND VORRICHTUNG ZUM HERSTELLEN EINES ZAHNRADES

Title (fr)

PROCEDE ET DISPOSITIF POUR LA PRODUCTION D'UNE ROUE DENTEE

Publication

EP 1027179 A1 (DE)

Application

EP 98949823 A

Priority

  • AT 9800260 W
  • AT 183697 A

Abstract (en)

[origin: WO9922890A1] The invention relates to a method and a device for producing a toothed wheel from a powder metal blank (1) which has been sintered and pressed with an overmeasure in the toothing area. Said blank is compacted in the area of the overmeasure using the pressure of a counter-toothing (8) of at least one rotating pressing tool (3) around the overmeasure so that a plastic deformation takes place, said counter-toothing engaging with the toothing (9) of the powder metal blank (1). In order to facilitate the construction of the toothed wheel, the counter-toothing (8) of the annular pressing tool (3) which surrounds the powder metal blank (1), said counter-toothing being configured as inner toothing, is pressed into the toothing (9) of the powder metal blank (1) using a pressure roller which rolls out on the outer periphery (10) of the pressing tool (3).

IPC 1-7 (main, further and additional classification)

B21H 5/02

IPC 8 full level (invention and additional information)

B21H 5/02 (2006.01); B22F 5/08 (2006.01)

CPC (invention and additional information)

B22F 5/08 (2013.01); B21H 5/022 (2013.01); B22F 2998/00 (2013.01); Y10T 29/49471 (2013.01)

Combination set (CPC)

B22F 2998/00 + B22F 3/18

Citation (search report)

See references of WO 9922890A1

Designated contracting state (EPC)

AT CH DE ES FR GB IT LI SE

EPO simple patent family

WO 9922890 A1 19990514; AT 229856 T 20030115; AT 406836 B 20000925; AT A183697 A 20000215; AU 9615898 A 19990524; BR 9813890 A 20000926; CA 2307562 A1 19990514; CA 2307562 C 20080122; CZ 20001591 A3 20010711; CZ 299187 B6 20080514; DE 59806760 D1 20030130; EP 1027179 A1 20000816; EP 1027179 B1 20021218; JP 2001521824 A 20011113; JP 3831896 B2 20061011; US 6357272 B1 20020319

INPADOC legal status


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- Document: DE 59806760 20030130

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2003-01-15 [RAP2] TRANSFER OF RIGHTS OF AN EP GRANTED PATENT

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