A belt containing steel cords, the steel cords containing strands made of steel filaments wherein the largest diameter filaments are at least intermittently positioned at the radially outer side of the steel cord. Such a configuration can be obtained by using steel cord constructions wherein the thickest filaments are positioned outside of the steel cord which is contrary to the current practice. In a further embodiment the largest diameter filaments fill up some or all of the valleys of the strands at their radially outer side. These monofilaments thus have the same lay length and direction as the strands in the steel cord. The advantage of putting the largest filaments at the outside is that they will break first and thus will be readily detectable by electrical, magnetic or visual means. In this way a belt is provided that can be monitored easier and more conveniently than prior art belts.

A belt containing steel cords, the steel cords containing strands made of steel filaments wherein the largest diameter filaments are at least intermittently positioned at the radially outer side of the steel cord. Such a configuration can be obtained by using steel cord constructions wherein the thickest filaments are positioned outside of the steel cord which is contrary to the current practice. In a further embodiment the largest diameter filaments fill up some or all of the valleys of the strands at their radially outer side. These monofilaments thus have the same lay length and direction as the strands in the steel cord. The advantage of putting the largest filaments at the outside is that they will break first and thus will be readily detectable by electrical, magnetic or visual means. In this way a belt is provided that can be monitored easier and more conveniently than prior art belts.

Conveyor belts having a reinforcement layer, a carry cover layer above the reinforcement layer, and a pulley cover layer disposed beneath the reinforcement layer, where the carry cover layer includes least one hydrogenated nitrile butadiene rubber (HNBR) material. The HNBR material(s) may have a percentage of hydrogenation of from about 90% to about 96%, from about 92% to about 95%, or even about 94%. The carry cover layer may be from about 4 mm to about 6 mm thick, or even from about 4 mm to about 5 mm thick. In some cases, the reinforcement layer includes a rubber matrix, which may be formed of a nitrile rubber (NBR), or mixture of nitrile NBR and natural rubber blended in a NBR:NR weight ratio of from 3:1 to 9:1. In some aspects, the reinforcement layer includes a plurality of reinforcement plies embedded in the rubber matrix.

A continuous loop reinforced food grade belt includes a plurality of extruded filaments comprising a meltable synthetic polymer, and at least one matrix material embedding the filaments. The matrix material includes a food grade polymer, and the matrix material and filaments form a length of belt having opposed first and second ends. The first and second ends are melted together to form a continuous loop belt with no filaments exposed to the belt environment.

An embedded body including, at one end portion of a coaxial cable, one side antenna unit and an IC tag that is passive and connected to the one side antenna unit, and another side antenna unit at the other end portion of the coaxial cable is embedded in a conveyor belt. The one side antenna unit and the IC tag, and the other side antenna unit disposed with an interval in a width direction and the coaxial cable is embedded extending in the width direction. A calculation unit determines whether a detector has received a radio wave emitted from the IC tag through the coaxial cable and the other side antenna unit in response to a radio wave emitted from the detector, and then whether a vertical tear has been generated in the conveyor belt based on the determination result.

The present invention concerns an endless conveyor belt for a conveyor device, which conveyor belt comprises a belt body that can be transversely deformed between a flat configuration, at rest, and a tubular configuration. This belt body comprises two transition regions over its width which between them define a central belt portion, as well as two side belt portions situated between each of them and the nearby side edge. At least one thickness of the side belt portions is greater than at least one thickness of the central belt portion, forming at least one over thickness region on each of the side belt portions.

The present invention concerns an endless conveyor belt for a conveyor device, which conveyor belt comprises a belt body that can be transversely deformed between a flat configuration, at rest, and a tubular configuration. This belt body comprises two transition regions over its width which between them define a central belt portion, as well as two side belt portions situated between each of them and the nearby side edge. At least one thickness of the side belt portions is greater than at least one thickness of the central belt portion, forming at least one over thickness region on each of the side belt portions.

A method for monitoring the condition of a rip detection insert embedded in a conveyor belt, the rip detection insert having a plurality of rip detection wires comprised of a magnetically permeable material; the method including the steps of: inducing a magnetic field within the rip detection wires of the rip detection insert; measuring at least one magnetic characteristic of the rip detection insert; monitoring the at least one magnetic characteristic of the rip detection insert for changes in the magnetic characteristic; determining the rip detection insert has been damaged when a change in at least one magnetic characteristic of the rip detection insert deviates beyond a predetermined threshold for the rip detection insert; and, filtering out a region of the rip detection insert containing the damage to the rip detection insert.

A method for monitoring the condition of a rip detection insert embedded in a conveyor belt, the rip detection insert having a plurality of rip detection wires comprised of a magnetically permeable material; the method including the steps of: inducing a magnetic field within the rip detection wires of the rip detection insert; measuring at least one magnetic characteristic of the rip detection insert; monitoring the at least one magnetic characteristic of the rip detection insert for changes in the magnetic characteristic; determining the rip detection insert has been damaged when a change in at least one magnetic characteristic of the rip detection insert deviates beyond a predetermined threshold for the rip detection insert; and, filtering out a region of the rip detection insert containing the damage to the rip detection insert.

A conveyor belt includes a core layer disposed between an upper cover rubber layer and a lower cover rubber layer. The core layer is configured from a plurality of steel cords covered by cushioning rubber and arranged in parallel. The rubber that forms the lower cover rubber layer is a low loss rubber that has a loss factor tanδ of 0.07 or less at a frequency of 10 Hz, 2% dynamic strain, and temperature of 20° C. The maximum thickness of the cushioning rubber is reduced to not more than ⅓ the nominal diameter of the steel cords.