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1. 外观设计

USD833963S1 Car tyre 有权
公开(公告)号：USD833963S1
公开(公告)日：2018-11-20
申请号：US29575569
申请日：2016-08-26
申请人： Pirelli Tyre S.p.A.
设计人： Alessandro Ascanelli , Roberto Bolzoni , Anna Paola Fioravanti , Stefano Montesello

5. 发明授权

US11161374B2 Car tyre 有权
公开(公告)号：US11161374B2
公开(公告)日：2021-11-02
申请号：US16662459
申请日：2019-10-24
申请人： PIRELLI TYRE S.P.A.
发明人： Alessandro Ascanelli , Roberto Bolzoni , Anna Paola Fioravanti , Stefano Montesello
IPC分类号： B60C11/03 , B60C11/12
摘要： A car tyre having a tread that extends in axial direction for a width the tread including a central portion arranged across an equatorial plane, and two lateral portions opposed with respect to the central portion. The central portion is separated from the lateral portions of the tread by two circumferential grooves. The circumferential grooves have a width greater than about 6 mm. The central portion extends in axial direction for a width less than 20% of the width of the tread and includes a plurality of first sipes. Each lateral portion has a width greater than 30% of the width of the tread, and each lateral portion includes, furthermore, a plurality of transversal grooves. The transversal grooves of a lateral portion include at least a first inclined length that extends from a zone proximal to the respective circumferential grooves, moving away from the equatorial plane. The first inclined length has an inclination α≤60° with respect to equatorial plane. Each lateral portion includes a plurality of sipes. The density of the sipes decreases moving away from the equatorial plane.

6. 发明授权

US10933696B2 Car tyre 有权
公开(公告)号：US10933696B2
公开(公告)日：2021-03-02
申请号：US14392228
申请日：2014-07-16
申请人： PIRELLI TYRE S.P.A.
发明人： Gianfranco Colombo , Roberto Bolzoni , Stefano Bizzi , Daniele Lorenzetti
IPC分类号： B60C11/03 , B60C11/13
摘要： A tyre having a tread is described. The tyre has a central portion located across an equatorial plane, a first shoulder portion located towards an outer side of the tyre and a second shoulder portion located towards an inner side of the tyre. The central portion is separated from the first shoulder portion by two first circumferential grooves. The first shoulder portion and the second shoulder portion have a plurality of first transverse grooves having a first end located substantially at the respective edge of the tread, having a width greater than or equal to about 4 mm and an axial extension equal to at least 50% of the width of the shoulder portion in which they are located.

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