D - Textiles – Paper – 07 – B
Patent
D - Textiles, Paper
07
B
D07B 1/14 (2006.01) D07B 1/22 (2006.01)
Patent
CA 2500437
The invention relates to a belt (43) with at least two fibre strands (41) which have synthetic fibre threads twisted in themselves and are designed for acceptance of force in longitudinal direction. The strands (41) are arranged at a spacing relative to one another along the longitudinal direction of the belt (43) and embedded in a belt casing (45). At least one of the strands (41) comprises an electrically conductive indicator thread (44) which is twisted together with the synthetic fibre threads of the strand (41), wherein the indicator thread (44) is arranged outside the centre of the fibre bundle (41). The indicator thread (44) has a breaking elongation (.epsilon.ult,lnd) which is smaller than the breaking elongation (.epsilon.ult,Trag) of individual synthetic fibre threads of the strand (41). It can be electrically contacted so that an electrical monitoring of the integrity thereof is made possible.
L'invention concerne une courroie (43) comportant au moins deux torons (41) de fibres, lesquels sont dotés de fils synthétiques enroulés sur eux-mêmes et sont disposés dans le sens longitudinal pour la prise de force. Ces torons (41) sont montés avec un espacement mutuel dans le sens longitudinal de la courroie (43) et noyés dans un gainage (45) de la courroie. Au moins un des torons (41) comprend un fil indicateur (44) électriquement conducteur, lequel est tourné avec les fils synthétiques des torons (41), le fil indicateur (44) ne se trouvant pas au centre du faisceau de fibres (41). Le fil indicateur (44) a un allongement à la rupture (.epsilon.¿ult?, ¿Ind?) inférieur à celui (.epsilon.¿ult,Trag?) des fils synthétiques individuels des torons (41), la surveillance électrique de son intégralité se faisant par contact.
de Angelis Claudio
Eichhorn Roland
Weinberger Karl
Ag Inventio
Riches Mckenzie & Herbert Llp
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