TYRE TREAD WITH MULTIFUNCTIONAL PROFILE

The invention relates to a tyre tread with multifunctional profile for pneumatic tyres and particularly, for low-size radial tyres, meant for equipping light motor vehicles, utility vehicle, truck and similar motor vehicles, whose shape and distribution of element, which constitute the tyre tread pr...

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Bibliographische Detailangaben
Hauptverfasser: TOBI VALENTINA, SAVONEA IOAN EMIL, VLADU IULIA
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to a tyre tread with multifunctional profile for pneumatic tyres and particularly, for low-size radial tyres, meant for equipping light motor vehicles, utility vehicle, truck and similar motor vehicles, whose shape and distribution of element, which constitute the tyre tread profile, provides a high tyre behaviour when used both on the driving axis and the steering axis, in conditions of high speed, speed category M. According to the invention, the tyre tread (1) consists of some continuous circumferencial elements (7 and 7'), located in the tyre equatorial region, separated by a central channel (10) and some transversal elements (8, 8' and 9, 9'), formed by the intersection of some transversal channels (13 and 13'), with the longitudinal channels (11, 11' and 12, 12'), the tyre tread being separated into two areas, by the section width: a median area (LA) which provides, by the contact surface to total surface ratio, a good tyre wear resistance and a comfortable rolling, and two lateral areas (LB), with the "block"-type profile elements (8, 8' and 9.9'), with a general transversal orientation and "V"-shaped edges, oriented in both directions, which provide an equal tyre traction upon the forward-backward rolling; the elements (8' and 9') are rotated to 180 in relation to the ecuatorial plane, fact that drives to an asymmetry of the tyre tread elements, on the width thereof, having positive effects on the noise generation while rolling. Invenţia se referă la o bandă de rulare, cu profil multifuncţional pentru anvelope pneumatice şi, în particular, pentru anvelope radiale, serie joasă, destinate a echipa autovehicule uşoare, autoutilitare, autocamioane şi autovehicule similare, a cărei formă şi distribuţie a elementelor, ce constituie profilul benzii de rulare, asigură o comportare superioară anvelopei la utilizarea atât pe axa motoare, cât şi pe axa direcţională, în condiţii de viteză înaltă, categorie de viteză M. Banda de rulare (1), conform invenţiei, constă din nişte elemente circumferenţiale continue (7 şi 7'), situate în zona ecuatorială a anvelopei, separate de un canal central (10) şi nişte elemente transversale (8, 8' şi 9, 9'), formate de intersecţia unor canale transversale (13 şi 13'), cu canalele longitudinale (11, 11' şi 12, 12'), banda de rulare fiind împărţită în două zone, pe lăţimea secţiunii: o zonă mediană (LA) care asigură, prin raportul suprafaţă de contact la suprafaţa totală, o bună rezistenţă la uzură a anvelo