A pneumatic tire is provided which achieves a rigidity improvement in acute angle areas of blocks, thereby improving the durability and traction of the tire. A tire includes a tread (10). The tread (10) includes central blocks (70) defined by grooves (12). Each of the central blocks (70) has at…
A mould for manufacturing a tire includes a plurality of segments including a first segment. The first segment has a first end, an opposite second end, primary lamella blades that are arranged close to the first end, and secondary lamella blades that are arranged far from both the ends. An average…
A two-wheeled vehicle tire for running on rough terrain, the tire comprising a tread portion. The tread portion comprises a plurality of middle blocks located between a tire equator and a tread edge. The plurality of middle blocks comprises at least one first middle block having an outer surface in…
A pneumatic tire comprises a plurality of blocks arranged on a tire ground contact edge. The plurality of blocks each comprise at least one main sipe that comprises: a two-dimensional sipe portion extending in a tire circumferential direction, and a three-dimensional sipe portion extending in a…
Pneumatic tire including a sipe formed in a tread block capable of minimizing slippage on a snowy or icy road while increasing rigidity of the tread block, thereby significantly improving braking and steering performances on wet and dry roads. The sipe comprises a first and a second sipe wall…
A tread for a tire with raised elements delimited by cuts, at least one of these raised elements having a sipe of a maximum depth at most equal to the thickness of the tread, and running in a main direction determined by the ends of the sipe on the tread surface in the as-new condition and a…
The tire has treads rotating in a circumference direction and profile block series including a profile block and limited by a circumference groove. The block is provided with cuts extending in a tread transverse direction, where the cuts include a lower section (4b) and shallow edge sections (4a…
A pneumatic tire including a closed sipe 5 formed in a tread surface 1 that includes a small hole 2 extending along a tire radial direction and a plurality of cuts 4 extending in a radiation direction from the small hole 2 and that terminating in a land portion 3. A diameter of an inscribed circle…
The tread profile has radially raised profile elements (1) which are separated from each other by profile grooves. A rubber body (9) is formed radially below a fine recess base in the profile grooves at the opening position of a fine recess (4) in the profile grooves. The rubber body is extended…
Disclosed is a pneumatic tire which is allowed to increase block stiffness not only during braking and driving but also during cornering, and is allowed thereby to compatibly enhance tire performances both during braking and driving and during cornering. The pneumatic tire of the present invention…
A pneumatic tire comprises a tread portion provided with sipes (10), the sipes (10) each having a zigzag configuration at any depth from the top of the sipe to a certain depth, and the zigzag configuration having vertexes (Q1) on one side of the zigzag and vertexes (Q2) on the other side of the…
The motor vehicle pneumatic tire has a tread composed of rows of profile elements separated by grooves. At least one profile element (14,15) has a fine cut (22,23) from one groove (10) to the other, across the peripheral line (U) of the tread. The cut has an increased thickness along its length…
A pneumatic tire comprising a tread portion having tread elements each provided with a sipe, wherein the sipe is open to a upper surface of the tread element, and has an open top end including a zigzag part and a bottom, wherein the sipe comprises: a first portion in which the zigzag part of the…
The tire for use in winter has a tread made up of blocks (4) separated by peripheral grooves (5). Wave-shaped incisions (7), starting at the peripheral grooves, run part of the way across the blocks, their amplitude decreasing in the direction away from the groove.
The tire for use in winter has peripheral treads made up of blocks separated by large incisions (7, 7a, 7b) from opposite edges of the tread, forming a meandering configuration. Smaller incisions (8a, 8b) at right angles to the larger ones, project in opposite directions into the gaps between them…
A pneumatic tire for ice-bound or snow-covered roads, which has fine grooves formed in a tread surface, thereby improving brake and drive performance on ice-bound roads in early periods of wear. This pneumatic tire for ice-bound or snow-covered roads has its tread partitioned into a plurality of…
The tire has a running strip profile divided by longitudinal grooves (2) and angled grooves (3, 4) into separate profile blocks (5, 6, 7, 8, 9). These have fine cuts (10, 11) parallel to each other in a wave form, forming profile block elements. At least two fine cuts produce a wave train which has…
Raised blocks(3) of the tread pattern incorporate a pattern of cuts(6) in their surfaces. The pattern comprises a surface filling curve which makes non contact with itself along its path in a block.
A pneumatic tire comprises a tread portion comprising tread elements each provided with a sipe (4), the sipe (4) having an open top end and a bottom, and in a range from the open top to a certain depth, a configuration of the sipe in a plane parallel with the tread face comprising a zigzag part…
The tire running surface comprises cutouts which form a zigzag or wavy tread pattern and incorporate the bounding surfaces (3) of adjacent pointed body elements whose orientation alternates from cutout to cutout (4) which adjoin one another without a seam.
The invention relates to pattern blocks in the tread of a vehicle tyre, the tread comprising the tread layer (20) on the tyre carcass (25) and on that pattern blocks (1) separated from each other by wider grooves (21). At least part of these pattern blocks comprise fine slits (2), which are…