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Cable bead and method for manufacturing same

A manufacturing method and cable tire technology, which is applied in the field of cable bead and its manufacturing, can solve the problems of increasing the number of winding times of thin-diameter wires and consuming manufacturing time, and achieve the effect of not being easy to twist unevenly and shortening the manufacturing time

Inactive Publication Date: 2017-02-22
SUMITOMO ELECTRIC IND LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this conventional method, the number of windings of the thin-diameter wire increases, and the production time is increased. Therefore, a coreless cable bead is proposed in Patent Document 1.

Method used

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  • Cable bead and method for manufacturing same
  • Cable bead and method for manufacturing same
  • Cable bead and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 6－1

[0171] 1×3×2.10 coreless cable bead

[0172] (Making of strand material)

[0173] A base wire obtained by drawing a brass-plated steel wire with a diameter of 6.5 mm and containing 0.7% by mass of C to a diameter of 2.10 mm was wound on three bobbins. These base wires were stranded with S strands at a stranding pitch of 50.0 mm after adjusting the diameter forming ratio to 95% using a tubular stranding machine, and were wound on a winding bobbin to produce a raw wire.

[0174] Each strand material is pulled out from the winding bobbin on which the raw wire was wound, and the end is manually untwisted, and each strand material is guided to the bobbin through a panel. use Figure 5 The shown untwisting device winds the coiled strand material on the spool, thereby obtaining 3 strand materials for the bead of the coreless cable.

[0175] (Manufacturing of coreless cable bead)

[0176] Use 1 of the 3 strand materials obtained by untwisting and winding the original wire. use ...

Embodiment 7－1

[0178] 3×2×1.48 coreless cable bead

[0179] (Making of strand material)

[0180] A base wire obtained by drawing a brass-plated steel wire with a diameter of 5.0 mm and containing 0.7% by mass of C to a diameter of 1.48 mm was wound on two bobbins. These base wires were twisted at a twisting pitch of 30 mm and Z-twisting after adjusting the diameter forming rate to 95% using a tubular stranding machine.

[0181] Then, the primary twisted material (1×2×1.48) was wound on three spools with a predetermined amount, and the diameter forming ratio was adjusted to 92% by using the tubular stranding machine again, and twisted in S at a twisting pitch of 70 mm. Retwisting is performed, and the raw wire is wound on a bobbin to produce a raw wire.

[0182] Each strand material is pulled out from the winding bobbin on which the raw wire was wound, and the end is manually untwisted, and each strand material is guided to the bobbin through a panel. use Figure 5 The shown untwisting d...

Embodiment 8－1

[0186] 3×3×1.2 coreless cable bead

[0187] (Making of strand material)

[0188] A base wire obtained by drawing a brass-plated steel wire with a diameter of 4.5 mm containing 0.7% by mass of C (carbon) to a diameter of 1.20 mm was wound on three bobbins. These base wires were twisted at a twisting pitch of 25 mm and Z-twisting after adjusting the diameter forming rate to 92% using a tubular stranding machine.

[0189] Then, the primary twisted material (1×3×1.20) was wound on three spools in a predetermined amount, and the diameter forming rate was adjusted to 99% by using the tubular stranding machine again, and twisted in S at a twisting pitch of 60 mm. Retwisting is performed, and the raw wire is wound on a bobbin to produce a raw wire.

[0190] Each strand material is pulled out from the winding bobbin on which the raw wire was wound, and the end is manually untwisted, and each strand material is guided to the bobbin through a panel. use Figure 5 The shown untwistin...

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Abstract

Provided are: a cable bead having a short manufacturing time and for which twisting unevenness is unlikely to occur; and a method for manufacturing the cable bead. Provided is a coreless ring-shaped cable bead (1), in which a single loop (7) of one deform strand member (2) that has been deformed so as to form a 1 x m1 x d1 single twist structure or a m2 x n x d2 multi-twist structure is wound into a spiral-shaped space into which (m1 - 1) or (m2 -1) deform strand members forming said structure are to be accommodated, and the strand member is wound m1 or m2 times.

Description

technical field [0001] The present invention relates to a cable bead used in a vehicle tire and a manufacturing method thereof. Background technique [0002] Conventionally, there is known a method of manufacturing a cable bead by forming a thick-diameter wire made of mild steel into a ring shape as a core material and winding a thin-diameter wire around it. In this conventional method, the number of windings of the thin-diameter wire increases, and the production time is required. Therefore, Patent Document 1 proposes a coreless cable bead. That is, Patent Document 1 proposes a method of manufacturing a cable bead by forming a ring shape using one steel wire, winding the steel wire a plurality of times and twisting it. Since the diameter of one wire used in the so-called 1×n single-stranded structure can be made thicker, the number of windings can be reduced accordingly, and thus the cable bead can be manufactured at low cost. [0003] Patent Document 2 discloses a method...

Claims

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Application Information

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IPC IPC(8): D07B1/18B29D30/48B60C15/04D07B1/06
CPCB29D30/48B60C15/04D07B1/06D07B1/18D07B1/0646D07B7/165D07B2201/2021D07B2201/2022D07B2501/2053B60C2015/046D07B7/025D07B7/18
Inventor 佐野裕一若原仁志菊川直纪菊川久士三田真司永田好一
Owner SUMITOMO ELECTRIC IND LTD