Nokian Tyres Plc

Nokian Renkaat Oyj

Niko Haanketo

Jorma Tikka

Henri Sakari Kossi

Tomi Korkama

Jouni Juhani Raatikainen

Slava Bukarev

Niko Nummi

Outi Husso

Mikko Jokinen

Aki Aro

Juha Kurikka

Samu Lepisto

Jyrki Hietasaari

Sirpa Syvänen

Viacheslav Bukarev

Marko Ylitolva

Tyre portion

Tyre

A pneumatic tire is provided with sipes, at least some of which have an open top end to the surface of the tread block. An intersection of the sipe with a surface that is geometrically congruent and parallel with the surface of the tread block and arranged a depth apart from the surface of the tread block into the tread block forms a curved line. A first sipe is shaped in such a way, that at all depths (d) within a range from the open top of the first sipe to a first transition depth, the curved line includes at least one deflection point having an inner corner that has a radius of curvature under 0.3 mm. A lamella plate for manufacturing the pneumatic tire, the tread band, or the tread block. Use of the lamella plate for manufacturing a tread block, a tread band, or a pneumatic tire.

Pneumatic tire, a tread band, and a tread block comprising a sipe, and a lamella plate for the manufacture thereof

A pneumatic tyre with a wear indicator may be manufactured by inserting rods of a mould into the tire tread during manufacturing. A mould may include at least seven rods extending in parallel in a direction of height on a same side of an object and connected to the object. The rods are arranged so multiple distances are left between the cross sections of the rods and a minimum of the multiple distances &#x2265;mm. In the direction of height, the cross section and/or the height of at least some of the rods varies so at a number of different height positions, the cross sections of the rods at those height positions define that number of different mirror-image symbols, of which mirror images are expressible by the wear indicator, one mirror-image symbol corresponding to one height position, with at least two different height positions and mirror-image symbols.

Mould for making a wear indicator into a pneumatic tyre and a pneumatic tyre comprising a wear indicator

Growing community of inventors

Nokia, Finland

Niko Haanketo