Abstract A driving belt having a trapezoidal cross-sectional configuration and suitable to transmit a torque between expanding pulleys formed of pairs of conical discs defining a 'V-shaped apace between them for receiving the driving belt, which driving belt comprises a carrier in the form of one or a number of endless metal belts having a continuous series of transverse members (6) freely slidable with respect to the carrier thereon. In such a driving belt there may be a lateral vibration of the transverse members under certain conditions. This vibration, during which the transverse members (6) strike the carrier, results in wear, which can be considerably reduced by providing the parallel surfaces with which the transverse members contact each other with friction-increasing means, such as a grooved surface.
Inventors
👤 Emerie Frederik Marie Hendriks
Bibliographic Details
Application Number—
JurisdictionEP
Data Sourcegoogle_patents
Last Synchronized2026-11-08 21:12
CPC Classifications
F; F16; F16G; F16G5/00; F16G5/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
A driving belt having a trapezoidal cross-sectional configuration and suitable to transmit a torque between expanding pulleys formed of pairs of conical discs which define a V-shaped space between them for receiving the driving belt, which driving belt comprises a carrier in the form of one or a number of endless, metal belts having a continuous series of transverse members freely slidable with respect to the carrier thereon, which transverse members define the cross-sectional configuration of the driving belt, characterized in that at least a number of the substantially parallel surfaces with which the transverse members are in contact with each other on a straight part of the belt are provided with , friction-increasing means.
Claim 2
Dependent Claim
115 words
A driving belt having a trapezoidal cross-sectional configuration and suitable to transmit a torque between expanding pulleys formed of pairs of conical discs which define a V-shaped space between them for receiving the driving belt, which driving belt comprises a carrier in the form of one or a number of endless, metal belts having a continuous series of transverse members freely slidable with respect to the carrier thereon, which transverse members define the cross-sectional configuration of the driving belt, characterized in that at least a number of the substantially parallel surfaces with which the transverse members are in contact with each other on a straight part of the belt are provided with , friction-increasing means.
Claim 3
Dependent Claim
19 words
A driving belt according to claim 1, characterized in that the friction-increasing means comprise a knurling of small depth.
Claim 4
Dependent Claim
21 words
A driving belt according to claim 2, characterized in that the knurling is formed by grinding the surface in two directions.