EP 0143767 A1 19850605 - Steel cord for rubber articles.
Title (en)
Steel cord for rubber articles.
Title (de)
Seil aus Stahldrähten für Kautschukerzeugnisse.
Title (fr)
Câble en acier pour produits en caoutchouc.
Publication
Application
Priority
JP 16055483 A 19830902
Abstract (en)
A steel cord for reinforcing a rubber article such as tires, conveyor belts, and high pressure hoses, consists of a plurality of steel filaments twisted in the same twisting direction with the same twisting pitch. According to the invention, the filaments are spirally deformed so as substantially not to include any torsional stress or deformation component. This is obtained by means of preformers combined with the use of a tubular twisting machine, comprising filament bobbins mounted in the machine, and whose number corresponds to that of the filaments required for respective layers, including any core of the multiple layer steel cord. By eliminating torsional components acting upon the filaments, the fatigue resistance, adhesion stability and productivity of manufacturing are improved.
IPC 1-7
IPC 8 full level
D07B 1/06 (2006.01); D07B 3/04 (2006.01); D07B 7/02 (2006.01)
CPC (source: EP)
D07B 1/062 (2013.01); D07B 1/0633 (2013.01); D07B 1/0646 (2013.01); D07B 7/025 (2013.01); D07B 2201/2028 (2013.01)
Citation (search report)
- [X] FR 1008928 A 19520523
- [Y] GB 2028393 A 19800305 - SODETAL
- [X] GB 1293951 A 19721025 - GLANZSTOFF AG [DE]
- [X] FR 649293 A 19281220 - FELTEN & GUILLEAUME CARLSWERK
- [A] FR 914168 A 19461001 - BRITISH ROPES LTD
- [A] FR 666909 A 19291008 - FELTEN & GUILLEAUME CARLSWERK
- [A] US 2757506 A 19560807 - EUGENE BECK, et al
- [X] RESEARCH DISCLOSURE, no. 170, June 1978, no. 17015, page 33, Havant, Hampshire (GB);
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8501074 A1 19850314; BR 8407046 A 19850730; EP 0143767 A1 19850605; EP 0155287 A1 19850925; JP H0367155 B2 19911021; JP S6059188 A 19850405
DOCDB simple family (application)
BE 8400020 W 19840903; BR 8407046 A 19840903; EP 84870123 A 19840903; EP 84903272 A 19840903; JP 16055483 A 19830902