Steel cord for reinforcing rubber product

Details Steel cord for reinforcing rubber product Steel cord for reinforcing rubber product

1993-01-14

1994-06-14

Stodola, Daniel P.

Textiles: spinning, twisting, and twining

Strand structure

57206, 57311, 57902, 152451, D07B 106, D02G 348

Patent

active

053199154

ABSTRACT:
A steel cord comprising a number (between 3 and 27) of element steel wires tightly twisted at a regular pitch P between 5 and 20 mm in the same direction. Each wire has a diameter d between 0.1 and 0.4 mm. At least one of the wires includes a spiral portion having a spiral pitch P1 between 0.1P and 0.7P and a spiral diameter d1 between d+2/100 mm and d+2/10 mm. At least one other wire includes a straight portion. At any cross section of the cord, 1/4 through 2/3 of the wires is/are spiral and the other wire/s is/are straight. The stretch of the cord under a load of 5 kg is between 0.10 and 0.40%. A method of producing a steel cord comprises supplying a number of element steel wires, forming at least part of at least one of the wires to be spiral, and tightly twisting the wires. An apparatus for producing a steel cord comprises feeders supported by a frame, each feeding an element steel wire along an axis, a tension device for applying a tension to the wire from at least one of the feeders, a spiral device having pins which extend across and are spaced along an axis, so that at least one of the wires from the tension device turns alternately over and under the pins, a strand device rotatable on the axis, so that the wires are twisted to form a strand, and a take-up device to take up the strand.

REFERENCES:
patent: 916048 (1809-03-01), Smith
patent: 2998696 (1901-09-01), Payer
patent: 4020887 (1977-05-01), Vlasov et al.
patent: 4106957 (1978-08-01), Tournoy
patent: 4240486 (1980-12-01), Schmit et al.
patent: 4258543 (1981-03-01), Canevari et al.
patent: 4333306 (1982-06-01), Yamashita et al.
patent: 4385486 (1983-05-01), Iwata et al.
patent: 4399853 (1983-08-01), Morimoto et al.
patent: 4464892 (1984-08-01), Kleijwegt
patent: 4506500 (1985-03-01), Miyauchi et al.
patent: 4509318 (1985-04-01), Yoneda
patent: 4516395 (1985-05-01), Palmer et al.
patent: 4545190 (1985-10-01), Rye et al.
patent: 4566261 (1986-01-01), Brandyberry et al.
patent: 4644989 (1987-02-01), Charvet et al.
patent: 4737392 (1988-04-01), Dambre
patent: 4738096 (1988-04-01), Hatakeyama et al.
patent: 4749017 (1988-06-01), Loesch
patent: 4836262 (1989-06-01), Nishizawa et al.
patent: 4850412 (1989-07-01), Gupta
patent: 4938015 (1990-07-01), Kinoshita
patent: 5020312 (1991-06-01), Watakabe
patent: 5109661 (1992-05-01), Okamoto et al.
patent: 5118568 (1992-06-01), Okamoto et al.
patent: 5162067 (1992-11-01), Miyawaki

Affiliated with

Also associated with

Rating

Steel cord for reinforcing rubber product does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Steel cord for reinforcing rubber product, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steel cord for reinforcing rubber product will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1239640