A tyre includes a tread with at most 30 channels distributed substantially evenly circumferentially about the tyre. Each channel is arranged so that, beyond a predetermined wear threshold, the channel satisfies the following conditions: (A) the channel opens into a tread pattern element of the tyre, and (B) the channel includes a mouth opening radially to outside of the tyre and is delimited by at least two edge corners that come into contact with a ground surface as the edge corners pass through a contact patch in which the tyre is in contact with the ground surface, in which a circumferential distance separating the edge corners from one another is greater than or equal to 2 mm, and preferably is greater than or equal to 4 mm. Before the predetermined wear threshold is reached, at least one of the conditions (A) and (B) is not met.
PNEUMATIQUE MUNI DE CANAUX SONORES
Patent
Elektronische Ressource
DISPOSITIF D'ALERTE POUR VEHICULE AUTOMOBILE MUNI DE DEUX AVERTISSEURS SONORES.
Europäisches Patentamt | 2015
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