EP 1121212 A4 20050126 - METHOD FOR MANUFACTURING A ONE-PIECE TORSIONAL VIBRATION DAMPER RETAINER PLATE
Title (en)
METHOD FOR MANUFACTURING A ONE-PIECE TORSIONAL VIBRATION DAMPER RETAINER PLATE
Title (de)
HERSTELLUNGSVERFAHREN EINER EINSTÜCKIGEN HALTERUNGSPLATTE FÜR DREHSCHWINGUNGSDÄMPFER
Title (fr)
PROCEDE POUR FABRIQUER UNE PLAQUE DE RETENUE POUR AMORTISSEUR MONOBLOC DE VIBRATIONS DE TORSION
Publication
Application
Priority
- US 9921035 W 19990915
- US 10060798 P 19980916
Abstract (en)
[origin: WO0015368A1] A method for manufacturing a drive plate or one-piece torsional vibration damper retainer plate (20) for a torque converter (26) is disclosed. The retainer plate includes an annular periphery (36) curled into a generally C-shaped channel (46) for retaining at least one spring (56). The method includes the following steps. First, the retainer plate (20) is stamped primarily to form a central plate segment (34), an annular periphery (36), and a hub opening (44). Next, the annular periphery of the retainer plate is pre-curled. The plate is then heat treated to enhanced the physical properties of the retainer plate. The spring is disposed within the pre-curled annular periphery. Finally, the annular periphery of the retainer plate is completely curled into the generally C-shaped channel to substantially surround the spring thereby preventing the spring from being removed from the C-shaped channel of the retainer plate during operation of the retainer plate.
IPC 1-7
IPC 8 full level
B21D 19/12 (2006.01); B21D 35/00 (2006.01); B21D 53/84 (2006.01); F16F 15/123 (2006.01); F16H 45/02 (2006.01)
CPC (source: EP KR)
B21D 19/12 (2013.01 - KR); F16H 45/02 (2013.01 - EP); F16H 2045/0294 (2013.01 - EP)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 0015368A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0015368 A1 20000323; AU 5922299 A 20000403; BR 9913771 A 20010605; CA 2343817 A1 20000323; CA 2343817 C 20060328; EP 1121212 A1 20010808; EP 1121212 A4 20050126; JP 2002524264 A 20020806; KR 100657437 B1 20061214; KR 20010079843 A 20010822; MX PA01002675 A 20020408
DOCDB simple family (application)
US 9921035 W 19990915; AU 5922299 A 19990915; BR 9913771 A 19990915; CA 2343817 A 19990915; EP 99946916 A 19990915; JP 2000569944 A 19990915; KR 20017003415 A 20010316; MX PA01002675 A 19990915