Matches 1 - 50 out of 75 1 2 >
Match Document Document Title
7350552 Directional tread having incisions of varying inclination  
A tread ( 1 ) for steer axle tires for a heavy vehicle, the tire having a preferred direction of travel, the tread comprising grooves ( 2 ) of generally circumferential orientation defining at...
7334619 Pneumatic tire with blocks having zigzag sipes  
A pneumatic tire comprising a tread portion 2 having blocks 7 each provided with sipeings 10 , wherein each sipeing 10 has an opening having a zigzag portion 11 in its opening edge shape J...
7329110 Tire vulcanizing mold and pneumatic tire  
There is provided a tire vulcanizing mold capable of smoothly and surely forming narrow-width grooves in a treading face without causing the damage, breakage and the like of projections for the...
7311127 Pneumatic tire with tread having sipes  
It is a subject to suitably decrease the rigidity of blocks, to generate suitable collapsing of the blocks, to sufficiently exhibit edge effects of sipes, and to improve braking performances and...
7281556 Pneumatic tire with tread portion having zigzag sipes  
It is an object of the present invention to improve the running performance on snowy and icy roads, and for this purpose, blocks provided with sipes are formed at a tread portion. The sipes include...
7270162 Pneumatic tire with tread surface having blocks with sipes forming meandrous shape  
A pneumatic tire including sipes that have at least one ends positioned within blocks. The sipes are arranged such that each of the sipes meanders from the one end to the other end thereof to form...
7234497 Tyre for motorcycle  
A tire for a motorcycle wherein the radius of curvature (R 1 ) of a corner portion on one side (an inside in an axial direction) of a groove of the tire is smaller than a radius of curvature (R 2 )...
7201195 Tire tread provided with incisions  
Tire tread including a pattern formed by at two ridges of mean width L, which include a plurality of incisions whose traces on the contact surface extend between two points of intersection A and B,...
7188650 Siped tire tread with high transverse stiffness  
A tire includes a plurality of tread blocks disposed circumferentially around the tire. At least one sipe is formed into at least one of the tread blocks and is defined by first and second...
7152641 Heavy-duty pneumatic tire having non-contact rib and shoulder blocks  
A heavy-duty pneumatic tire designed to suppress the occurrence of heel-and-toe wear in the shoulder blocks while maintaining good drainage and traction performance through the final stage of the...
7143799 Three-dimensional sipes for treads  
Both a mold blade for forming sipes and the sipe so formed in a tire tread element have three dimensional portions. In the formed sipe, the three dimensional portion creates a constant interlocking...
7090735 Method of compensating for residual aligning torque (RAT)  
A method for changing the residual aligning torque (RAT) of a pneumatic tire by forming angled sipes in certain of the tread blocks in at least a pair of circumferentially extending ribs, each rib...
7077180 Pneumatic tire having sipes formed by shifting pitches of zigzag shape  
Disclosed is a pneumatic tire provided with multiple blocks 6 on a tread 1 . A sipe 7 provided on the block 6 is formed by shifting pitches of a zigzag shape 7 a on a tread face 1 a side...
7017634 Tire tread including hollowed zones  
A tread ( 1 ) provided with a plurality of cutouts ( 5, 6, 71, 72, 73, 81, 82, 83 ) of essentially transverse orientation and characterized in that: when new, some of the transverse cutouts ( 5, 6...
6907910 Pneumatic tire including sipes  
A pneumatic tire comprises a tread portion comprising tread elements each provided with a sipe, the sipe having an open top end and a bottom, and in a range from the open top to a certain depth, a...
6874552 Tread having offset first and second incisions  
A tire tread comprising grooves defining motifs in relief, at least one of these motifs being provided with first and second incisions, said incisions each being defined by two main lateral...
6868879 Tread comprising ribs provided with incisions of varying inclination  
A tread ( 1 ) for a tire with a preferred rolling direction, the tread having grooves ( 2 ) of substantially circumferential orientation which delimit ribs ( 30, 31, 32, 33, 35 ), at least one of...
6796349 Pneumatic tire including protrusion dividing groove space of main groove having groove width narrowed during inflation  
Disclosed is a pneumatic tire effectively controlling uneven wear occurring in the vicinity of a main groove even if a groove width of the main groove is narrowed due to change in tread radius...
6786257 Pneumatic tire including twisted sipe  
A pneumatic tire. In a block 18 formed on a tread surface, a sipe 24 which is twisted at a predetermined angle from a surface portion 28 toward a bottom portion 30 is provided. Due to...
6719024 Pneumatic tire having sipes  
In a pneumatic tire including sipes extending in zigzag provided on tread surfaces, both wall surfaces of each sipe, which face to each other, are inclined with respect to a diameter direction of...
6681824 Heavy load bearing tire having tread including at least one incision  
A tread for a tire bearing heavy loads, the tread being made of a rubber mix and having at least one incision defined by opposing walls, each wall having elements in relief intended to cooperate...
6681823 Heavy load pneumatic radial tire  
A heavy load pneumatic radial tire has the circular fine groove 5 running in the tire circumferential direction at least at one side of the shoulder portion 4 running on both sides of the tread...
6668886 Vehicle tire having sipes  
A vehicle tire is provided in the tread portion with sipes capable of improving the rigidity of tread rubber, wherein each of the sipes comprises an radially outer part and radially inner parts,...
6668885 Pneumatic tire including water drainage passage  
A pneumatic tire in which a block formed in a tread surface has, in a ground contacting surface thereof, a closed sipe which is formed so as to not open onto a groove. The sipe has a first opening...
6619352 Tread profile of a snow tire  
Tread profile of a snow tire for a vehicle in which at least two vehicle wheels are rotatably mountable outside of a longitudinal vehicle axis. The tread profile includes a plurality of profile...
6604564 Tread pattern motif for a tread  
A tire tread having grooves of transverse general orientation defining a plurality of blocks arranged so as to form a tread pattern having a preferred direction of travel, the blocks having a...
6601623 Pneumatic tire  
As shown in FIGS. 1 and 2 , in a pneumatic tire of the present invention, block-shaped land portions 18 are divided by main grooves 14 and lug grooves 16 on the tread 12 of a studless...
6595254 Pneumatic tire including zig-zag main grooves  
Disclosed is a pneumatic tire effectively controlling uneven wear occurring in the vicinity of a main groove even if a groove width of the main groove is widened due to change in tread radius...
6591880 Pneumatic tire including zig-zag circumferential fine grooves  
A pneumatic tire comprises a pair of bead portions, a pair of sidewall portion, a tread portion, a radial carcass of at least one ply, and a belt, wherein the tread portion is provided with two or...
6571844 Pneumatic tire having tread including pairs of sipes  
Sipes extending from one end of a block to the central area of the block and sipes extending from the other end of the block to the central area of the block (sipes 24, 28, 32 and 36 ) are...
6564841 Pneumatic tire having zig-zag circumferential main grooves  
Disclosed is a pneumatic tire effectively controlling uneven wear occurring in the vicinity of a main groove even if a groove width of the main groove is narrowed due to change in tread radius...
6564840 Lamella of high stability for a vulcanization mold, vulcanization mold with such lamellas, vehicle tire with tire tread in which sipes are produced by such lamellas  
A lamella for use in a vehicle tire vulcanization mold has projections and depression, wherein the height of the projections and the depth of the depressions extend substantially parallel to a...
6484773 Tread pattern which reduces the running noise of a tire  
A tread pattern for a tire, the tread pattern being formed by elements in relief defined by grooves, some of these elements in relief being provided with at least one blind incision, that is to...
6467517 Tire having sacrificial bridging  
The present invention provides a pneumatic tire having a tread portion comprising a plurality of axially spaced apart essentially longitudinal grooves separating essentially longitudinal ribs. On...
6427737 Pneumatic tire having at least four sipes  
A pneumatic tire comprising a tread which comprises block-shaped land portions and a plurality of specific sipes formed on the block-shaped land portions is disclosed. At least in one portion in...
6412531 Tire tread having groove walls with compound contours  
A tread for a tire includes at circumferentially extending grooves having side walls contoured with upper and lower waveforms that are relatively staggered, or out of phase. The side walls provide...
6382283 Tire for vehicle wheels including sipes  
A tire for vehicle wheels, provided with a tread band, includes a plurality of raised blocks confined between at least two longitudinal grooves, at least two transverse grooves meeting the...
6263934 Tire tread comprising incisions bounding rubber studs  
A tread is provided with at least one rubber stud of orientation XX' perpendicular or inclined with respect to the tread surface. The rubber stud has a side wall bounded by at least one incision...
6203640 Medium/heavy duty motor-vehicle tires provided with a tread of the universal type  
A tire tread band for medium/heavy duty motor-vehicles having circumferential grooves confining three pairs of respectively center, intermediate and shoulder ribs. Respective tread blocks are...
6202725 Pneumatic tire and vulcanization mold used for the manufacture thereof  
A pneumatic tire comprises a tread with a plurality of sipes, in which one of opposed wall faces of the sipe is a concave face arc-shapedly curved over a whole of the sipe in a depth direction...
6196288 Siping geometry to delay the onset of rib edge wear in truck tires  
The present invention provides a truck tire with a siping geometry to protect the main ribs of the tire's tread by delaying the onset of irregular wear and the growth thereof. The improved tire...
6109316 Tire having improved tread portion for reducing formation of anomalies causing user dissatisfaction  
The invention is directed to a shoulder construction of the tread area of pneumatic tires which provides increased stability and reduced wear. The shoulder construction comprises a decoupling rib...
6026875 Vehicle tire with a tread exhibiting sipes substantially running in the axial direction  
Vehicle tire and a metal sheet mold plate for forming the vehicle tire having at least one axial end section includes a tread that includes sipes running substantially axially in at least one of...
6012499 Pneumatic tire including inclined grooves and connection grooves  
A pneumatic tire comprising a tread portion having a plurality of blocks which are defined by inclined grooves and by a plurality of connection groves connecting with the inclined grooves or with...
6006804 Pneumatic radial tire including vibration buffer wall  
A pneumatic radial tire which is excellent in drainage and capable of reducing air-column-tube resonance sounds in circumferentially extending grooves to decrease noises. The pneumatic radial tire...
5950700 Pneumatic tire and vulcanization mold therefor  
A pneumatic tire comprises sipes in each land portion defined by wide-width grooves in a tread portion, in which a sipe corresponding to at least a part of these sipes comprises a pair of main...
5944082 Tire tread to compensate residual aligning torque  
The tread of a rib type tire is modified to provide draft angles in lateral grooves of selected ribs to compensate the tire's residual aligning torque (RAT). This allows the vehicle to have...
5921303 Pneumatic radial tire including fine groove  
A pneumatic radial tire comprises a pair of bead portions, a pair of sidewall portions, a tread portion, a radial carcass, and a belt, in which the tread portion is comprised of a first tread zone...
5896905 Tread for heavy-vehicle tire in which the central ribs are provided with inclined incisions  
In order to improve the wear of the trailing edges of the relief elements of a tread (1) for "heavy vehicle" tires, which elements are defined in the axial direction by circumferential grooves and...
5833780 Pneumatic radial tire for heavy loads  
A pneumatic radial tire for heavy loads, formed by providing the shoulder side edge portions of at least the second inner ribs or block rows counted from the outermost parts of a tread portion with...
Matches 1 - 50 out of 75 1 2 >