Method for producing a material web, use thereof as a reinforcing ply for an elastomer item, and vehicle pneumatic tires
AssigneeContinental Reifen Deutschland GmbH
InventorsNorbert Kendziorra, Christian Weber
Life of this patent
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Abstract
The invention is directed to a vehicle pneumatic tire wherein strengthening plies are provided with steel cords running parallel to one another. The belt plies can be used, as isolated electrically conductive plates, for supplying electricity to electrical consumers such as sensors and actuators installed in the tire. Adjacent belt plies can be connected by puncture sensors to be able to identify damage to the belt caused by metallic parts penetrating from the outside, such as nails, on the basis of a change in the electrical resistance.
Claims15
A method for producing an elastomeric article comprising a material web composed of strengthening members, which are embedded into a rubber mixture and which run parallel to one another and which are composed of steel, the method comprising:
- a) producing a rubber mixture web that forms an upper plate and a second rubber mixture web that forms a lower plate;
- b) leading a strengthening member web, which is composed of a multiplicity of strengthening members running parallel to one another, under tension through a roll gap of a roll calender;
- c) leading the upper plate from one side of the strengthening member web, and the lower plate from the other side of the strengthening member web, through the roll gap of the roll calender, with said upper plate and lower plate being joined together with the strengthening member web;
- d) providing the strengthening member web with a multiplicity of filaments before or as it enters the roll gap;
- and
- e) incorporating the material web in an elastomer article as an isolated electrically conductive plate adjacent a second isolated electrically conductive plate,
- wherein the multiplicity of filaments produce contact between in each case at least some of the strengthening members at least substantially transversely with respect to the direction of extent of the strengthening member web,
- wherein the multiplicity of filaments comprise electrically non-conductive textile carrier filaments provided with a coating composed of an electrically conductive material, and
- wherein the material web and the second isolated electrically conductive plate conduct electricity.
Dependencies are inferred from the claim text.