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公开(公告)号：EP4461563A2
公开(公告)日：2024-11-13
申请号：EP24173113.2
申请日：2024-04-29
申请人： Nokian Renkaat Oyj
发明人： Liukkula, Mikko , Ilomäki, Jouko , Heikkinen, Lauri , Kemppainen, Noora , Laitila, Aappo , Shakun, Alexandra
摘要： The invention relates to a pneumatic tyre, which contains a structure wherein a thermally adaptive underlayer is positioned beneath a tread layer and an intermediate layer, and wherein the thermally adaptive underlayer is based on a polymer system that has been selected to contain elastomers with distinct glass transition temperatures sufficiently far apart from each other and which exhibit low miscibility towards each other. Due to the tyre construction and the thermally adaptive underlayer, while driving a vehicle, the performance characteristics of the pneumatic tyre are configured to adapt to the driving conditions on the road based on the temperature experienced by the thermally adaptive underlayer. This is of particular relevance during colder seasons, such as for a winter tyre, wherein the thermally adaptive underlayer may be used to design an improved tread layer and for a studded pneumatic tyre, wherein the composition and thickness of the thermally adaptive underlayer may be used to control the dynamic impact of the stud on a driving surface, when the tyre is in motion.
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公开(公告)号：EP3357676A1
公开(公告)日：2018-08-08
申请号：EP17397505.3
申请日：2017-02-06
申请人： Nokian Renkaat Oyj
CPC分类号： B29D30/66 , B29D2030/662 , B60C11/1631
摘要： A device (100) for driving antiskid studs (800, 911, 912) into holes (920) of a tread (930) of a pneumatic tire (900). The device (100) comprises a tire holder (210) for holding a pneumatic tire (900) and a studding tool (300). The studding tool comprises a primary and a secondary studding heads (400, 500) both studding heads comprising a mouth (410, 510) for injecting a stud (911, 912) out of the studding head (400, 500) into one of the holes (920) in a direction (D410, D510), a bore (420, 520) for guiding the stud (911, 912), the bore (420, 520) ending at the mouth (410, 420), and a pusher (430, 530) movable in said bore (420, 520) for pushing the stud (911, 912) out from the bore (420, 520). The studding tool (300) and/or the tire holder (210) moves relative to each other at least in a direction that has a non-zero component in an axial direction (AX).
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公开(公告)号：EP4461571A1
公开(公告)日：2024-11-13
申请号：EP23172086.3
申请日：2023-05-08
申请人： Nokian Renkaat Oyj
摘要： The invention relates to a tyre (200) comprising a tread (210) having tread blocks (220); a plurality of stud holes (250); and a plurality of studs (100) installed in at least some of the stud holes (250). Studs (100b) in a centre area (CR) of the tyre (200) have higher protrusion from a surface of the tread block (220) than studs (100a) in a shoulder area (SR1, SR2) of the tyre (200).
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公开(公告)号：EP4461570A1
公开(公告)日：2024-11-13
申请号：EP23172084.8
申请日：2023-05-08
申请人： Nokian Renkaat Oyj
摘要： The invention relates to a tyre (200) comprising a tread (210) having tread blocks (220); a plurality of stud holes (250); and a plurality of studs (100) installed in at least some of the stud holes (250). A constellation of the studs (100) is such that less than two studs (100) are in a line perpendicular to a rolling direction (R) of the tyre (200). Less than two studs (100) within an area of a footprint are in the same line parallel to the rolling direction (R). A distance between two adjacent studs is more than 20 mm.
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