Abstract: The present invention relates to a toothed belt (1) having a belt body (10) which extends substantially in a longitudinal direction (X) and which comprises a flexible material, wherein at least one tension member (13), preferably a plurality of tension members (13), is at least substantially embedded in the flexible material of the belt body (10) in the longitudinal direction (X) and is at least substantially enclosed by the flexible material of the belt body (10), wherein the belt body (10) has a toothed side (11) with teeth (14) and tooth spaces (15) which alternate in the longitudinal direction (X).

Abstract: A process for the production of a traction or carrying means built up from a plurality of components or assemblies of extruded elastomeric material, wherein, in a first substep, a first component, provided with reinforcing members or cables, of the traction or carrying means is produced and, in further substeps, a traction or carrying means, which is connected to further components or provided with further layers of elastomeric material, fabric layers or reinforcing-member layers, is successively completed, and optionally said traction or carrying means is shaped on one or more sides, wherein the individual substeps follow one another such that a component processed or completed in the respectively preceding substep is fed at room temperature (Rt), after a maximum of 1 to 10 minutes, to the subsequent substep, and such that the temperature of the component does not drop below 30° C. between a respectively preceding substep and the subsequent substep.

Abstract: A toothed belt includes a toothed profile made of a base material and defining a toothed profile drive side and a far side facing away from the drive side. A woven ply has a thickness and is applied to the far side of the toothed profile. The woven ply has a first side in contact with the far side causing the base material to penetrate the woven ply at least partly at the first side thereof. The woven ply has a second side facing away from the first side. A coating of plastic on the second side causes the plastic to penetrate the woven ply at least partly at the second side. The base material and the plastic each penetrate the woven ply to an extent to cause the woven ply to be free of the base material and the plastic in an inner lying thickness region thereof.

Abstract: The present invention concerns a belt (1), with a belt body (10) which extends substantially in a longitudinal direction and substantially comprises a flexible material, wherein at least one tensioning member (13), preferably a plurality of tensioning members (13), is at least substantially embedded in the belt body (10) in the longitudinal direction and at least substantially surrounded by the flexible material of the belt body (10), and with a coating (14) which is arranged directly on the belt body (10) from a drive side (11) of the belt (1), wherein the coating (14) comprises a fabric layer (14b). The belt (1) is characterized in that facing the belt body (10), the coating (14) has a first film (14a) which is arranged between the belt body (10) and the fabric layer (14b) and is designed to isolate the belt body from the fabric layer (14b).

Abstract: A belt for drive systems includes: an elastic and flame-retardant belt body made from a polymeric material and at least one flame retardant additive, the belt body having a cover layer as a belt back and a substructure which has a force transmission zone; and a tension member embedded in the belt body, wherein the belt body is partially or completely provided with a coating, which coating is single- or multi-layered.

Abstract: A method for treating a tension member in the production of a belt. The belt includes at least a belt body made of a polymer material having elastic properties, a cover layer as a belt backing, and a substructure having a force-transmission zone. The tension member has a ribbed design and is embedded in the belt body. The tension member is treated with an overall treatment mixture which forms a cross-linked polymer that on the one hand enters into a mechanical connection with the tension member and on the other hand forms an adhesive connection with the belt body.

Abstract: A process for the production, in a plurality of substeps, of a traction or carrying means built up from a plurality of components or assemblies and consisting of preferably extruded elastomeric material, wherein, in a first substep, a first component, provided with reinforcing members or cables, of the traction or carrying means is produced and, in further substeps, a traction or carrying means, which is connected to further components or provided with further layers of elastomeric material, fabric layers or reinforcing-member layers, is successively completed, and optionally said traction or carrying means is shaped or profiled on one or more sides, wherein the individual substeps in the process follow one another such that a component processed or completed in the respectively preceding substep is fed at room temperature (Rt), after a maximum of 1 to 10 minutes, preferably 2 to 5 minutes, to the subsequent substep for further processing or completion, and such that the temperature of the component does not

Abstract: A toothed belt includes a toothed profile made of a base material and defining a toothed profile drive side and a far side facing away from the drive side. A woven ply has a thickness and is applied to the far side of the toothed profile. The woven ply has a first side in contact with the far side causing the base material to penetrate the woven ply at least partly at the first side thereof. The woven ply has a second side facing away from the first side. A coating of plastic on the second side causes the plastic to penetrate the woven ply at least partly at the second side. The base material and the plastic each penetrate the woven ply to an extent to cause the woven ply to be free of the base material and the plastic in an inner lying thickness region thereof.

Abstract: A belt for drive systems includes: an elastic and flame-retardant belt body made from a polymeric material and at least one flame retardant additive, the belt body having a cover layer as a belt back and a substructure which has a force transmission zone; and a tension member embedded in the belt body, wherein the belt body is partially or completely provided with a coating, which coating is single- or multi-layered.

Abstract: A method for fabricating a belt with upstream treatment of a tension member. The belt comprises a belt body made of a polymeric material having elastic properties, having a top ply as belt backing and a substructure having a force transmission zone, and a tension member embedded into the belt body. The tension member has been treated with crosslinked polymer; in an upstream stage of the belt fabrication method, voids in the tension member are filled at least partly with crosslinked polymer and the tension member is sealed with an envelope layer of crosslinked polymer, this being done, in a single treatment stage or in at least two treatment stages, by wetting of the tension member with an overall treatment mixture comprising at least one prepolymer, at least one crosslinker and at least one solvent or dispersion medium, and then drying of the treated tension member.

Abstract: A drive system or support system, in particular for elevators, is described, comprising a belt pulley having a diameter of at least 70 mm and a drive belt or support belt which is curved around the belt pulley, wherein the drive belt or support belt comprises a cover layer (1), which is arranged on the lower side of the belt facing toward the belt pulley, and at least one tension layer (2), which is arranged directly above the cover layer; the cover layer is made of a polymeric material having elastic properties, the tension layer contains at least one fiber bundle which is almost unidirectional and which runs in the longitudinal direction of the belt, wherein certain relationships apply between the thickness of the cover layer, the thickness of the tension layer, the diameter of the belt pulley (4) and the Shore A hardness of the cover layer.

Abstract: A belt comprises at least a belt body made of a polymer material having elastic properties, the belt including a cover layer as a belt backing, a substructure having a force-transmission zone, and a tension member in a ribbed design embedded in the belt body. The tension member is prepared with a cross-linked polyurethane in such a way that the polyurethane fills at least part of the tension member cavities. The polyurethane filling material enters into a mechanical connection to the tension member on the one hand and an adhesive connection to the belt body on the other hand. The polyurethane filling material has a Shore A hardness that is 0.5 to 10 times harder than the Shore A hardness of the belt body. The belt body is preferably likewise made of cross-linked polyurethane, in particular using a carbon tension member.

Abstract: A method for fabricating a belt with upstream treatment of a tension member. The belt comprises a belt body made of a polymeric material having elastic properties, having a top ply as belt backing and a substructure having a force transmission zone, and a tension member embedded into the belt body. The tension member has been treated with crosslinked polymer; in an upstream stage of the belt fabrication method, voids in the tension member are filled at least partly with crosslinked polymer and the tension member is sealed with an envelope layer of crosslinked polymer, this being done, in a single treatment stage or in at least two treatment stages, by wetting of the tension member with an overall treatment mixture comprising at least one prepolymer, at least one crosslinker and at least one solvent or dispersion medium, and then drying of the treated tension member.

Abstract: A belt for drive technology having a belt body made from two polymer materials (A) and (B) with elastic properties and including a top layer as the belt back and a substructure with a force transfer zone and a tension member embedded in the belt body. The first material (A) contains 15 to 50% w/w of at least one fire-resistant additive and is used everywhere in the belt body where high mechanical properties are not required and the second material (B) contains 5 to 35% w/w of at least one fire-resistant additive and is used in the are of the belt body that is subjected to the highest mechanical stresses. The belt is particularly used as a tractive element for hoisting technology.

Abstract: A device and a method for producing impregnated reinforcements, in particular for composite materials such as drive belts. The method for producing the reinforcements includes: introducing the reinforcement into an applicator device; introducing at least one substance for impregnating the reinforcement into the applicator device; and, embodying the impregnated reinforcement. The device comprises at least one applicator through which the reinforcement is guided and at least one intake for a substance for impregnation.

Abstract: A method for treating a tension member in the production of a belt. The belt includes at least a belt body made of a polymer material having elastic properties, a cover layer as a belt backing, and a substructure having a force-transmission zone. The tension member has a ribbed design and is embedded in the belt body. The tension member is treated with an overall treatment mixture which forms a cross-linked polymer that on the one hand enters into a mechanical connection with the tension member and on the other hand forms an adhesive connection with the belt body.

Abstract: A belt comprises at least a belt body made of a polymer material having elastic properties, the belt including a cover layer as a belt backing, a substructure having a force-transmission zone, and a tension member in a ribbed design embedded in the belt body. The tension member is prepared with a cross-linked polyurethane in such a way that the polyurethane fills at least part of the tension member cavities. The polyurethane filling material enters into a mechanical connection to the tension member on the one hand and an adhesive connection to the belt body on the other hand. The polyurethane filling material has a Shore A hardness that is 0.5 to 10 times harder than the Shore A hardness of the belt body. The belt body is preferably likewise made of cross-linked polyurethane, in particular using a carbon tension member.

Abstract: A traction system includes a composite rope (1), especially for an elevator. The composite rope (1) is driveable by a traction sheave (6). The traction system has a composite rope that is easy to handle, whereby high traction forces can be transferred, and the composite rope enables a narrower drive unit than known belt technology. To this end, the composite rope has parallel individual tension members (4) surrounded by an elastomer material which are interconnected by an elastomer connecting layer (5) on one side, and the tension members (4) engage in corresponding grooves (7) of the traction sheave (6). The penetration depth of the individual ropes (2) of the tension members (4) in the grooves of the traction sheave (6) is at least 25% of the diameter (d) of the individual ropes (2).

Abstract: A traction device includes tension members (2) coated with an elastomer material to form jacketed tension members (3). The jacketed tension members (3) are arranged next to each other in a plane in the cross section of the traction device, at such a distance from each other that there is a clear space (6) between each two mutually adjacent ones of the jacketed tension members (3). The jacketed tension members (3) are connected at the back thereof by a back layer. The clear space (6) begins on the side facing away from the back layer (4) and extends at least beyond the center point (5) of the tension member, and the ratio of the second diameter (d2) of the jacketed tension member (3) in relation to the first diameter (d1) of the tension member (2) is between 1.05 and 2.25.

Abstract: The invention relates to a traction device (1), especially for an elevator system. The traction device (1) is driveable by a traction sheave. The task which is the basis of the invention is to provide a traction device which is simple to manipulate. High tension forces are transferable and the traction device makes possible a drive unit of lesser width compared to the known belt technology. For this purpose, the traction device is configured as a composite rope (1) wherein individual tension carriers (2, 3) are connected to each other via a one-sided elastomer connecting layer (4). The individual tension carriers (2, 3) lie in parallel and are jacketed with elastomeric material. The tension carriers (2, 3) engage in corresponding grooves (13) of the traction sheave (10). The tension carriers (2, 3) engage in the grooves (13) of the traction sheave (10) with at least 25% of their total diameter.