A synchronous belt with a tensile member layer having a tensile member embedded in an elastomeric body; a toothed surface with a plurality of regularly spaced, transverse teeth protruding from the body; and a jacket covering the toothed surface; wherein the teeth comprise a plurality of fabric insert layers that increase the stiffness of the tooth, the insert layers separated from each other by layers of an elastomer composition. The layers may be oriented parallel to the tensile member layer, perpendicular to the tensile member, or following the contour of the tooth. The layers may be a single piece of fabric folded into layers, or separate pieces of fabric.

A synchronous belt with a tensile member layer having a tensile member embedded in an elastomeric body; a toothed surface with a plurality of regularly spaced, transverse teeth protruding from the body; and a jacket covering the toothed surface; wherein the teeth comprise a plurality of fabric insert layers that increase the stiffness of the tooth, the insert layers separated from each other by layers of an elastomer composition. The layers may be oriented parallel to the tensile member layer, perpendicular to the tensile member, or following the contour of the tooth. The layers may be a single piece of fabric folded into layers, or separate pieces of fabric.

The present invention relates to a flat belt (10) that is an open end belt to be fixed to a coupler (31, 41), in which the flat belt (10) contains, formed on both end portions (11, 12) of at least one surface of the flat belt (10), a plurality of projected portions (13) engageable with a plurality of recessed portions (33, 43) formed on the coupler (31, 41).

A device for making a double-sided toothed belt has an inner mold having teeth and an outer mold. The outer mold includes segments arranged parallel to the longitudinal axis of the inner mold and mutually adjacent. The device has a force transmission element arranged on the radial outer side of the segments. A pressure vessel has a cylindrical wall surrounding the force transmission element. The force transmission element is formed as a bellows fastened with two ends in pressure-tight fashion to the pressure vessel. The force transmission element is arranged in a ring-shaped space formed between the wall of the pressure vessel and the radial outer side of the segments. The pressure vessel has a pressure medium bore which opens into the ring-shaped space radially outside the force transmission element. The segments and the inner mold each have one axial passage bore through which fluid can be conducted.

A method for making a reinforced monolithic belt (85) comprises: extruding belt material (80) onto a rotating molding wheel (12); passing the belt material (80) into a mold cavity (30) formed by an endless band (20) engaging on a peripheral portion of the molding wheel (12); and laying a coated reinforcing cord (45) onto the molding wheel (12) before the mold cavity (30). This method allows producing a reinforced monolithic belt with no flights.

A method for making a reinforced monolithic belt (85) comprises: extruding belt material (80) onto a rotating molding wheel (12); passing the belt material (80) into a mold cavity (30) formed by an endless band (20) engaging on a peripheral portion of the molding wheel (12); and laying a coated reinforcing cord (45) onto the molding wheel (12) before the mold cavity (30). This method allows producing a reinforced monolithic belt with no flights.

A belt extends along a longitudinal axis and is delimited by two sides opposite one another, by a back surface and by a front surface, which is opposite the back surface, is provided with at least one tooth and is designed to cooperate in contact with a transmission wheel; the belt has at least one wear indicator defined by an element comprising ferromagnetic material, which is embedded in an intermediate portion of the tooth.

The object of the invention is a belt-type traction means, which comprises a herringbone toothed belt, which has at least a tooth part and a support structure supporting the tooth part, which support structure comprises a plurality of reinforcement means in the longitudinal direction of the toothed belt. In the transverse direction of the toothed belt the toothed belt comprises two edge parts side by side and a center part between the edge parts connecting the edge parts, the spring constant of which center part in the transverse direction of the toothed belt is smaller than the corresponding spring constant of the edge parts. In addition, the object of the invention is a method for fabricating the aforementioned traction means and the use of the traction means in an elevator as well as an elevator provided with the aforementioned traction means.

The object of the invention is a belt-type traction means, which comprises a herringbone toothed belt, which has at least a tooth part and a support structure supporting the tooth part, which support structure comprises a plurality of reinforcement means in the longitudinal direction of the toothed belt. In the transverse direction of the toothed belt the toothed belt comprises two edge parts side by side and a center part between the edge parts connecting the edge parts, the spring constant of which center part in the transverse direction of the toothed belt is smaller than the corresponding spring constant of the edge parts. In addition, the object of the invention is a method for fabricating the aforementioned traction means and the use of the traction means in an elevator as well as an elevator provided with the aforementioned traction means.

A frictional transmission belt according to the present disclosure has a belt body wound around a pulley to transmit power. The belt includes a water absorptive fabric covering at least one side of the belt body that contacts with the pulley.