WO2015056573A1 - 空気入りタイヤ - Google Patents
空気入りタイヤ Download PDFInfo
- Publication number
- WO2015056573A1 WO2015056573A1 PCT/JP2014/076393 JP2014076393W WO2015056573A1 WO 2015056573 A1 WO2015056573 A1 WO 2015056573A1 JP 2014076393 W JP2014076393 W JP 2014076393W WO 2015056573 A1 WO2015056573 A1 WO 2015056573A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- center
- groove
- tire
- shoulder
- narrow groove
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0327—Tread patterns characterised by special properties of the tread pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0306—Patterns comprising block rows or discontinuous ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0327—Tread patterns characterised by special properties of the tread pattern
- B60C11/033—Tread patterns characterised by special properties of the tread pattern by the void or net-to-gross ratios of the patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/11—Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1236—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
- B60C2011/013—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered provided with a recessed portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0327—Tread patterns characterised by special properties of the tread pattern
- B60C2011/0334—Stiffness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
- B60C2011/0344—Circumferential grooves provided at the equatorial plane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
- B60C2011/0346—Circumferential grooves with zigzag shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
- B60C2011/0348—Narrow grooves, i.e. having a width of less than 4 mm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
- B60C2011/0353—Circumferential grooves characterised by width
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
- B60C2011/0355—Circumferential grooves characterised by depth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0358—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0358—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane
- B60C2011/0365—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane characterised by width
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0358—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane
- B60C2011/0367—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane characterised by depth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0386—Continuous ribs
- B60C2011/0393—Narrow ribs, i.e. having a rib width of less than 8 mm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1204—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
- B60C2011/1209—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe straight at the tread surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C2011/129—Sipe density, i.e. the distance between the sipes within the pattern
Definitions
- the present invention relates to a pneumatic tire that achieves both on-ice performance and wear resistance.
- performance on ice a pneumatic tire having a sipe provided on a block.
- Such a pneumatic tire can exhibit on-ice performance due to a road surface scratching action (hereinafter referred to as an “edge effect”) by a sipe edge and a water absorption effect.
- the pneumatic tire provided with the sipe has a problem that the wear resistance performance is lowered because the rigidity of the land portion is lowered.
- Patent Document 1 a pneumatic tire is proposed in which the arrangement pitch of the lateral grooves extending in the tire axial direction is specified.
- the rubber chipping of the block between the lateral grooves is suppressed. Accordingly, the wear resistance performance of the land portion can be improved.
- Patent Document 1 Even the pneumatic tire disclosed in Patent Document 1 has room for further improvement in terms of compatibility between performance on ice and wear resistance.
- the present invention has been devised in view of the actual situation as described above, and provides a pneumatic tire that achieves both on-ice performance and wear resistance performance by improving the arrangement of grooves extending in the tire circumferential direction. Is the main purpose.
- the present invention provides a tread portion having a pair of center main grooves extending continuously in the tire circumferential direction on both sides of the tire equator, and continuously extending in the tire circumferential direction on the inner side in the tire axial direction of the center main groove.
- a pneumatic tire provided with a center narrow groove having a groove width smaller than the groove, wherein the center narrow groove includes a linear first center narrow groove along the tire circumferential direction and a zigzag second center.
- the first center narrow groove is provided on the inner side in the tire axial direction of the second center narrow groove.
- the first center narrow groove is provided on the tire equator, and a pair of the second center narrow grooves are provided on both sides in the tire axial direction of the first center narrow groove. desirable.
- the tread portion is provided with an inner center land portion between the first center narrow groove and the second center narrow groove, and the inner center land portion includes the second center land portion.
- the inner center land portion includes the second center land portion.
- the center main groove has a zigzag shape
- the tread portion is provided with an outer center land portion between the second center narrow groove and the center main groove
- the center land portion has an outer center lateral groove that communicates between a second top portion that protrudes outward in the tire axial direction of the second center narrow groove and a first top portion that protrudes inward in the tire axial direction of the center main groove.
- the tread portion is provided with shoulder narrow grooves extending continuously in the tire circumferential direction outside the center main groove in the tire axial direction, and the shoulder narrow grooves are zigzag-shaped in the tire circumferential direction. It is desirable to extend.
- the center main groove has a zigzag shape
- the tread portion is provided with an inner shoulder land portion between the center main groove and the shoulder narrow groove, and the inner shoulder land.
- a plurality of inner shoulder lateral grooves that communicate between the first apex that protrudes inward in the tire axial direction of the shoulder narrow groove and the second apex that protrudes outward in the tire axial direction of the center main groove are provided in the portion.
- the tread portion is provided with an outer shoulder land portion disposed on the outer side in the tire axial direction of the shoulder narrow groove, and the outer shoulder land portion has a tire shaft of the shoulder narrow groove.
- a plurality of outer shoulder lateral grooves are provided to communicate between the second top portion that protrudes outward in the direction and the tread grounding end, thereby dividing the plurality of outer shoulder blocks, and the tread of the outer shoulder block has a substantially pentagonal shape It is desirable that
- the pneumatic tire of the present invention has a pair of center main grooves extending continuously in the tire circumferential direction on both sides of the tire equator on the tread portion, and extending continuously in the tire circumferential direction on the inner side in the tire axial direction of the center main groove.
- a center narrow groove having a groove width smaller than that of the center main groove is provided.
- the center narrow groove includes a linear first center narrow groove along the tire circumferential direction and a zigzag second center narrow groove.
- the first center narrow groove is provided on the inner side in the tire axial direction of the second center narrow groove. That is, the first center narrow groove is arranged on the tire equator side of the tread portion where a large contact pressure acts. As a result, during running on ice, a large frictional force can be exerted in the tire axial direction due to the edge component extending in the tire circumferential direction of the first center narrow groove. In addition, during turning, the unevenness on both sides of the second center narrow groove is engaged with each other. As a result, the land portions on both sides of the second center narrow groove are integrated, and the rigidity of the land portion between the center main groove and the first center narrow groove is increased. Therefore, the pneumatic tire of the present invention can improve wear resistance.
- the pneumatic tire of the present invention can achieve both performance on ice and wear resistance.
- FIG. 2 is a cross-sectional view taken along the line AA in FIG. It is an expanded sectional view of the center land part of FIG. It is an expanded sectional view of the shoulder land part of FIG.
- FIG. 1 shows a tread portion 2 of a pneumatic tire (hereinafter sometimes simply referred to as “tire”) 1 of the present embodiment.
- the pneumatic tire 1 of the present embodiment is suitably used as a heavy duty pneumatic tire for winter, for example.
- the tread portion 2 is provided with a center main groove 3 and a center narrow groove 4.
- a pair of center main grooves 3 are provided on both sides of the tire equator C.
- the center main groove 3 extends continuously in the tire circumferential direction.
- the tread portion 2 is divided into a center land portion 10 on the inner side in the tire axial direction of the center main groove 3 and a shoulder land portion 30 on the outer side in the tire axial direction of the center main groove 3.
- the center main groove 3 of the present embodiment is provided with a first top 3a that protrudes inward in the tire axial direction and a second top 3b that protrudes outward in the tire axial direction.
- first top 3a and second top 3b alternately in the tire circumferential direction, the center main groove 3 is formed in a zigzag shape.
- the groove width W1 of the center main groove 3 is, for example, 2.5% to 5.0% of the tread ground contact width TW. With such a center main groove 3, excellent drainage performance can be exhibited while maintaining the rigidity of the tread portion 2.
- the tread contact width TW is a distance in the tire axial direction between the tread contact ends Te and Te of the tire 1 in a normal state.
- the normal state is a no-load state in which a tire is assembled on a normal rim (not shown) and filled with a normal internal pressure.
- the “regular rim” is a rim determined for each tire in the standard system including the standard on which the tire is based. For example, in the case of JATMA, “standard rim”, in the case of TRA, “Design” Rim ”, and in the case of ETRTO,“ Measuring ”Rim”
- the “regular internal pressure” is the air pressure defined by each standard for each tire in the standard system including the standard on which the tire is based.
- the “tread contact end Te” is the contact position on the outermost side in the tire axial direction when the normal load is applied to the tire 1 in the normal state and the tire 1 contacts the plane with a camber angle of 0 °.
- the “regular load” is a load determined by each standard for each tire in a standard system including a standard on which the tire is based.
- JATMA it is “maximum load capacity”
- TRA it is the maximum value described in the table “TIRE, LOAD, LIMITS, AT, VARIOUS, COLD, INFLATION, and PRESSURES”.
- FIG. 2 is a cross-sectional view taken along the line AA in FIG. As shown in FIG. 2, the groove depth d1 of the center main groove 3 is, for example, 10 mm to 25 mm.
- the distance L5 in the tire axial direction from the tire equator C to the groove center line 3c of the center main groove 3 is preferably, for example, 0.15 to 0.35 times the tread contact width TW. Thereby, the outstanding wet performance can be exhibited, maintaining the rigidity of the center land part 10 (shown in FIG. 1).
- the center narrow groove 4 continuously extends in the tire circumferential direction on the inner side in the tire axial direction of the center main groove 3.
- the groove width W2 of the center narrow groove is set to be smaller than the groove width W1 of the center main groove 3.
- the ratio W2 / W1 between the groove width W2 of the center narrow groove 4 and the groove width W1 of the center main groove 3 is preferably 0.30 or more, more preferably 0.35 or more, and preferably 0.50 or less. More preferably, it is 0.45 or less.
- the groove depth d2 (shown in FIG. 2) of the center narrow groove 4 is, for example, 8 mm to 20 mm. Such a center narrow groove 4 can exhibit an excellent edge effect while maintaining the rigidity of the center land portion 10.
- the center narrow groove 4 includes a first center narrow groove 5 and a second center narrow groove 6.
- the first center narrow groove 5 is formed in a linear shape along the tire circumferential direction.
- the second center narrow groove 6 is provided with a first apex portion 6a that protrudes inward in the tire axial direction and a second apex portion 6b that protrudes outward in the tire axial direction.
- the second center narrow groove 6 is formed in a zigzag shape. Since the first center narrow groove 5 and the second center narrow groove 6 exhibit an excellent edge effect, the performance on ice can be improved.
- the first center narrow groove 5 is provided inside the second center narrow groove 6 in the tire axial direction. That is, the first center narrow groove 5 is arranged on the tire equator C side of the tread portion 2 where a large contact pressure acts. When traveling on ice, a large frictional force can be exerted in the tire axial direction by the edge component extending in the tire circumferential direction of the first center narrow groove 5. At the time of turning, the irregularities on both sides of the second center narrow groove 6 are engaged with each other. Thereby, the land part arrange
- the first center narrow groove 5 is preferably provided on the tire equator C. Thereby, a larger ground pressure acts on the first center narrow groove 5, and an excellent edge effect can be exhibited.
- the present invention is not limited to such a form.
- the first center narrow groove 5 may be provided on both sides of the tire equator C, for example.
- the second center narrow groove 6 is preferably provided on both sides of the first center narrow groove 5 in the tire axial direction. By such a pair of second center narrow grooves 6, the rigidity distribution of the center land portion 10 becomes uniform, and uneven wear of the center land portion 10 can be suppressed.
- FIG. 3 shows an enlarged view of the center land 10.
- the center land portion 10 includes an inner center land portion 11 and an outer center land portion 16.
- the inner center land portion 11 is provided between the first center narrow groove 5 and the second center narrow groove 6.
- the outer center land portion 16 is provided between the second center narrow groove 6 and the center main groove 3.
- the inner center land portion 11 is provided with a plurality of inner center lateral grooves 12.
- Each inner center lateral groove 12 communicates between the first top 6 a of the second center narrow groove 6 and the first center narrow groove 5.
- the inner center lateral groove 12 extends linearly along the tire axial direction.
- Such an inner center lateral groove 12 can exert a large snow column shear force in the tire circumferential direction during running on snow, and can improve running performance on snow (hereinafter referred to as “snow performance”).
- the groove width W3 of the inner center lateral groove 12 is preferably 1.65 times or more, more preferably 1.70 times or more, more preferably 1.85 times or less, more than the groove width W1 of the center main groove 3. Preferably it is 1.80 times or less.
- Such an inner center lateral groove 12 can improve on-snow performance while maintaining steering stability on a dry road.
- the inner center land portion 11 is provided with an inner center lateral groove 12 so that a plurality of inner center blocks 13 are divided.
- the tread surface 13s of each inner center block 13 is formed in a substantially pentagonal shape with a convex outer edge 13e in the tire axial direction.
- the ratio W6 / L1 of the width W6 in the tire axial direction of the tread surface 13s of the inner center block 13 and the length L1 in the tire circumferential direction is preferably 0.45 or more, more preferably 0.50 or more, and preferably Is 0.60 or less, more preferably 0.55 or less.
- the ratio W6 / L1 is smaller than 0.45, the rigidity of the inner center block 13 in the tire axial direction becomes small, and the steering stability may be lowered.
- the ratio W6 / L1 is larger than 0.60, the rigidity of the inner center block 13 in the tire circumferential direction is lowered, and the traction performance on the dry road may be lowered.
- the inner center block 13 is preferably provided with a plurality of inner center sipes 14 communicating between the first center narrow groove 5 and the second center narrow groove 6.
- Such an inner center sipe 14 exhibits an excellent edge effect and water absorption effect, and can improve the performance on ice.
- the “sipe” is a cut having substantially no width of about 1 mm or less, for example. Therefore, the sipe and the drainage groove are distinguished from each other.
- the interval P1 between the inner center sipes 14, 14 adjacent in the tire circumferential direction is 0.05 times or more, more preferably 0.10 times or more, more preferably 0.10 times or more the length L1 of the inner center block 13. 20 times or less, more preferably 0.15 times or less.
- Such an inner center sipe 14 can achieve both wear resistance and on-ice performance.
- a plurality of outer center lateral grooves 17 are provided in the outer center land portion 16. Each outer center lateral groove 17 communicates between the second top 6 b of the second center narrow groove 6 and the first top 3 a of the center main groove 3.
- the outer center lateral groove 17 extends along the tire axial direction. Such outer center lateral groove 17 strongly compresses snow in the groove when traveling on snow. Therefore, a large snow column shear force can be obtained, and the performance on snow can be improved.
- the groove width W4 of the outer center lateral groove 17 is, for example, 1.65 times to 1.85 times the groove width W1 of the center main groove 3.
- the groove width W4 of the outer center lateral groove 17 is preferably the same as the groove width W3 of the inner center lateral groove 12.
- Such outer center lateral grooves 17 can improve performance on snow and can effectively suppress uneven wear of the center land portion 10.
- the outer center land portion 16 is provided with an outer center lateral groove 17 to divide a plurality of outer center blocks 18.
- the tread surface 18s of each outer center block 18 is formed in a substantially hexagonal shape in which edges 18e, 18e on both sides in the tire axial direction are convex.
- the ratio W7 / L2 of the width W7 in the tire axial direction of the tread surface 18s of the outer center block 18 and the length L2 in the tire circumferential direction is preferably 0.50 or more, more preferably 0.55 or more, and preferably Is 0.65 or less, more preferably 0.60 or less.
- the outer center block 18 is preferably provided with a plurality of outer center sipes 19 communicating between the second center narrow groove 6 and the center main groove 3. Such an outer center sipe 19 can effectively improve the performance on ice.
- the interval P2 between the outer center sipes 19, 19 adjacent in the tire circumferential direction is 0.05 times or more, more preferably 0.10 times or more, more preferably 0.10 times or more the length L2 of the outer center block 18. 20 times or less, more preferably 0.15 times or less.
- the outer center sipe 19 can improve the performance on ice while maintaining the wear resistance of the outer center block 18.
- FIG. 4 shows an enlarged view of the shoulder land portion 30.
- the shoulder land portion 30 is provided with a shoulder narrow groove 8.
- the shoulder narrow groove 8 extends continuously in the tire circumferential direction outside the center main groove 3 in the tire axial direction.
- the shoulder narrow groove 8 is provided with a first apex portion 8a that protrudes inward in the tire axial direction and a second apex portion 8b that protrudes outward in the tire axial direction.
- the shoulder narrow groove 8 is formed in a zigzag shape.
- the groove width W8 of the shoulder narrow groove 8 is, for example, 0.15 to 0.20 times the groove width W1 of the center main groove 3.
- the groove depth d3 (shown in FIG. 2) of the shoulder narrow groove 8 is, for example, 8 mm to 20 mm.
- Such shoulder narrow grooves 8 are deformed so that the groove walls of the shoulder narrow grooves 8 come into contact with each other at the time of grounding.
- the contact of the groove wall of the shoulder narrow groove 8 can exhibit an excellent edge effect while maintaining the rigidity of the shoulder land portion 30.
- the shoulder land portion 30 is divided into an inner shoulder land portion 31 and an outer shoulder land portion 36 by the shoulder narrow groove 8.
- the inner shoulder land portion 31 is provided between the center main groove 3 and the shoulder narrow groove 8.
- the outer shoulder land portion 36 is provided between the shoulder narrow groove 8 and the tread grounding end Te.
- the inner shoulder land portion 31 is provided with a plurality of inner shoulder lateral grooves 32.
- Each inner shoulder lateral groove 32 communicates between the first top 8 a of the shoulder narrow groove 8 and the second top 3 b of the center main groove 3.
- the inner shoulder lateral groove 32 extends linearly along the tire axial direction. Due to such inner shoulder lateral grooves 32, an excellent snow column shearing force can be exhibited and the performance on snow can be improved.
- the groove width W10 of the inner shoulder lateral groove 32 is desirably larger than the groove width W4 (shown in FIG. 3) of the outer center lateral groove 17. Further, the groove width W10 of the inner shoulder lateral groove 32 is preferably 1.10 times or more, more preferably 1.13 times or more, preferably 1.20 times or less, the groove width W4 of the outer center lateral groove 17; More preferably, it is 1.17 times or less.
- Such an inner shoulder lateral groove 32 can improve on-snow performance while suppressing uneven wear in the vicinity of the center main groove 3.
- the inner shoulder land portion 31 is divided into a plurality of inner shoulder blocks 33 by inner shoulder lateral grooves 32.
- the tread surface 33s of each inner shoulder block 33 is formed in a substantially hexagonal shape with edges 33e and 33e on both sides in the tire axial direction being convex.
- the ratio W12 / L3 of the width W12 in the tire axial direction of the tread surface 33s of the inner shoulder block 33 and the length L3 in the tire circumferential direction is preferably 0.50 or more, more preferably 0.55 or more, and preferably Is 0.65 or less, more preferably 0.60 or less.
- the inner shoulder block 33 is preferably provided with a plurality of inner shoulder sipes 34 communicating between the center main groove 3 and the shoulder narrow groove 8. Such an inner shoulder sipe 34 can effectively improve the performance on ice.
- the interval P3 between the inner shoulder sipes 34 adjacent to each other in the tire circumferential direction is larger than the interval P2 (shown in FIG. 3) between the outer center sipes 19.
- the interval P3 of the inner shoulder sipe 34 is preferably 1.15 times or more, more preferably 1.20 times or more than the interval P2, and preferably 1 .35 times or less, more preferably 1.30 times or less.
- the outer shoulder land portion 36 is provided with a plurality of outer shoulder lateral grooves 37.
- Each outer shoulder lateral groove 37 communicates between the second top portion 8b of the shoulder narrow groove 8 and the tread grounding end Te.
- the outer shoulder lateral groove 37 extends linearly along the tire axial direction. Such outer shoulder lateral grooves 37 can exert a large snow column shear force in the tire circumferential direction when running on snow.
- the groove width W11 of the outer shoulder lateral groove 37 is, for example, 1.10 times to 1.20 times the groove width W4 of the outer center lateral groove 17 (shown in FIG. 3).
- the groove width W11 of the outer shoulder lateral groove 37 is desirably the same as the groove width W10 of the inner shoulder lateral groove 32.
- Such outer shoulder lateral grooves 37 can effectively suppress uneven wear of the shoulder land portion 30.
- the outer shoulder land portion 36 is provided with outer shoulder lateral grooves 37 so that a plurality of outer shoulder blocks 38 are divided.
- the tread surface 38s of each outer shoulder block 38 is formed in a substantially pentagonal shape in which the edge 38e on the inner side in the tire axial direction is convex.
- the ratio W13 / L4 of the width W13 in the tire axial direction of the tread surface 38s of the outer shoulder block 38 and the length L4 in the tire circumferential direction is preferably 0.30 or more, more preferably 0.35 or more, and preferably Is 0.50 or less, more preferably 0.45 or less.
- Such an outer shoulder block 38 can exhibit excellent wandering performance while suppressing uneven wear of the block.
- the outer shoulder block 38 is preferably provided with a plurality of outer shoulder sipes 39 that communicate between the shoulder narrow groove 8 and the tread grounding end Te.
- Such an outer shoulder sipe 39 can exhibit excellent performance on ice.
- the interval P4 between the outer shoulder sipes 39 adjacent to each other in the tire circumferential direction is, for example, 1.15 to 1.35 times the interval P2 (shown in FIG. 3) of the outer center sipe 19.
- the interval P4 of the outer shoulder sipe 39 is preferably the same as the interval P3 of the inner shoulder sipe 34.
- Such an outer shoulder sipe 39 can exhibit excellent wandering performance while suppressing uneven wear of the outer shoulder block 38.
- a shoulder auxiliary block 41 on the outer side of the outer shoulder block 38 in the tire axial direction.
- the tread surface 41s of the shoulder auxiliary block 41 is arranged on the inner side in the tire radial direction than the tread surface 38s of the outer shoulder block 38.
- Such a shoulder auxiliary block 41 disperses the contact pressure in the vicinity of the tread contact end Te during turning, and the stepped wear of the outer shoulder block 38 can be effectively suppressed.
- the land ratio Lr of the tread portion 2 is preferably 68% or more, more preferably 70% or more. In addition, it is preferably 78% or less, more preferably 75% or less. Thereby, wear resistance performance and performance on ice can be made compatible.
- the “land ratio” is a ratio Sb / Sa of the actual total ground contact area Sb to the total area Sa of the virtual ground contact surface where all the grooves and sipes are filled between the tread ground contact Te and Te. is there.
- the pitch number N of one block of the tire provided in the tread portion 2 is preferably 40 or more, more preferably 45 or more, and preferably 60 or less, more preferably 55 or less. Thereby, the outstanding edge effect is acquired, maintaining the rigidity of each block.
- the rubber hardness Ht of the tread rubber is preferably 60 ° or more, more preferably 63 ° or more, and preferably 70 ° or less, more preferably 67 ° or less. With such a tread rubber, both wear resistance and performance on ice can be achieved.
- the “rubber hardness” is a hardness according to durometer type A in an environment of 23 ° C. in accordance with JIS-K6253.
- the total center edge component amount ⁇ CE which is the sum of the edge component amounts of sipes provided in the center land portion 10, is preferably 33,000 mm or more, more preferably 35000 mm or more, and preferably 43,000 mm or less, more preferably 40000 mm or less. It is. Thereby, the outstanding on-ice performance can be exhibited while the rigidity of the center land portion 10 is maintained.
- the sipe edge component amount means the sum of the lengths of the edges on both sides of the sipe.
- the total shoulder edge component amount ⁇ SE which is the sum of the edge component amounts of sipes provided in the shoulder land portion 30 is preferably 23000 mm or more, more preferably 25000 mm or more, and preferably 33000 mm or less, more preferably 30000 mm or less. It is. Thereby, the outstanding on-ice performance can be exhibited while the rigidity of the shoulder land portion 30 is maintained.
- the ratio ⁇ SE / ⁇ CE of the total shoulder edge component amount ⁇ SE and the total center edge component amount ⁇ CE is preferably 0.65 or more, more preferably 0.70 or more, and preferably 0.80 or less, more preferably 0.75 or less.
- Comparative Example 1 a tire without a center narrow groove was prototyped.
- Comparative Example 2 a tire in which only a linear first center narrow groove was provided inside the center main groove was manufactured.
- Each test tire was evaluated for performance on ice, performance on snow, and wear resistance.
- the common specifications and test methods for each test tire are as follows. Wearing rim: 8.25 ⁇ 22.5 Tire internal pressure: 900kPa Test vehicle: 10t truck, 50% of the standard load capacity is loaded at the center of the loading platform Tire mounting position: All wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
3 センター主溝
4 センター細溝4
5 第1センター細溝
6 第2センター細溝
図1には、本実施形態の空気入りタイヤ(以下、単に「タイヤ」ということがある。)1のトレッド部2が示されている。本実施形態の空気入りタイヤ1は、例えば、冬用の重荷重用空気入りタイヤとして好適に使用される。
装着リム:8.25×22.5
タイヤ内圧:900kPa
テスト車両:10tトラック、荷台中央に標準積載量の50%の荷重を積載
タイヤ装着位置:全輪
各テストタイヤを装着したテスト車両について、氷上での走行性能が、運転者の官能により評価された。結果は、比較例1を100とする評点である。数値が大きい程、氷上性能が優れていることを示している。
各テストタイヤを装着したテスト車両について、雪上での走行性能が、運転者の官能により評価された。結果は、比較例1を100とする評点である。数値が大きい程、雪上性能が優れていることを示している。
乾燥路面において、各テストタイヤを装着したテスト車両を一定距離走行させた。そして、走行後のテストタイヤについて、センター陸部の摩耗量が測定された。結果は、タイヤ摩耗量の逆数を、実施例1の値を100とする指数で表示されている。数値が大きい程、耐摩耗性能が優れていることを示している。
テスト結果が表1に示される。
Claims (7)
- トレッド部に、タイヤ赤道の両側でタイヤ周方向に連続してのびる一対のセンター主溝 と、前記センター主溝のタイヤ軸方向内側でタイヤ周方向に連続してのびかつ前記センター主溝よりも溝幅が小さいセンター細溝とが設けられた空気入りタイヤであって、
前記センター細溝は、タイヤ周方向に沿った直線状の第1センター細溝と、ジグザグ状の第2センター細溝とを含み、
前記第1センター細溝は、前記第2センター細溝のタイヤ軸方向内側に設けられていることを特徴とする空気入りタイヤ。 - 前記第1センター細溝は、タイヤ赤道上に設けられ、
前記第2センター細溝は、前記第1センター細溝のタイヤ軸方向両側に一対設けられている請求項1記載の空気入りタイヤ。 - 前記トレッド部には、前記第1センター細溝と前記第2センター細溝との間に内側センター陸部が設けられ、
前記内側センター陸部には、前記第2センター細溝のタイヤ軸方向内側に凸となる第1頂部と前記第1センター細溝との間を連通する内側センター横溝が複数本設けられることにより、複数の内側センターブロックが区分され、
前記内側センターブロックの踏面は、略五角形状である請求項1又は2記載の空気入りタイヤ。 - 前記センター主溝は、ジグザグ状であり、
前記トレッド部には、前記第2センター細溝と前記センター主溝との間に外側センター陸部が設けられ、
前記外側センター陸部には、第2センター細溝のタイヤ軸方向外側に凸となる第2頂部と前記センター主溝のタイヤ軸方向内側に凸となる第1頂部との間を連通する外側センター横溝が複数本設けられることにより、複数の外側センターブロックが区分され、
前記外側センターブロックの踏面は、略六角形状である請求項1乃至3のいずれかに記載の空気入りタイヤ。 - 前記トレッド部に、前記センター主溝のタイヤ軸方向外側でタイヤ周方向に連続してのびるショルダー細溝が設けられ、
前記ショルダー細溝は、タイヤ周方向にジグザグ状にのびる請求項1乃至4のいずれかに記載の空気入りタイヤ。 - 前記センター主溝は、ジグザグ状であり、
前記トレッド部には、前記センター主溝と前記ショルダー細溝との間に内側ショルダー陸部が設けられ、
前記内側ショルダー陸部には、前記ショルダー細溝のタイヤ軸方向内側に凸となる第1頂部と前記センター主溝のタイヤ軸方向外側に凸となる第2頂部との間を連通する内側ショルダー横溝が複数本設けられることにより、複数の内側ショルダーブロックが区分され、
前記内側ショルダーブロックの踏面は、略六角形状である請求項5記載の空気入りタイヤ。 - 前記トレッド部には、前記ショルダー細溝のタイヤ軸方向外側に配された外側ショルダー陸部が設けられ、
前記外側ショルダー陸部には、前記ショルダー細溝のタイヤ軸方向外側に凸となる第2頂部とトレッド接地端との間を連通する外側ショルダー横溝が複数本設けられることにより、複数の外側ショルダーブロックが区分され、
前記外側ショルダーブロックの踏面は、略五角形状である請求項5又は6記載の空気入りタイヤ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14853212.0A EP3047984B1 (en) | 2013-10-17 | 2014-10-02 | Pneumatic tire |
US15/024,465 US10266013B2 (en) | 2013-10-17 | 2014-10-02 | Pneumatic tire |
JP2015542569A JP6010704B2 (ja) | 2013-10-17 | 2014-10-02 | 空気入りタイヤ |
CN201480051743.XA CN105555551B (zh) | 2013-10-17 | 2014-10-02 | 充气轮胎 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013216619 | 2013-10-17 | ||
JP2013-216619 | 2013-10-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015056573A1 true WO2015056573A1 (ja) | 2015-04-23 |
Family
ID=52828021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/076393 WO2015056573A1 (ja) | 2013-10-17 | 2014-10-02 | 空気入りタイヤ |
Country Status (5)
Country | Link |
---|---|
US (1) | US10266013B2 (ja) |
EP (1) | EP3047984B1 (ja) |
JP (1) | JP6010704B2 (ja) |
CN (1) | CN105555551B (ja) |
WO (1) | WO2015056573A1 (ja) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106240236A (zh) * | 2015-06-15 | 2016-12-21 | 东洋橡胶工业株式会社 | 充气轮胎 |
CN106240243A (zh) * | 2015-06-15 | 2016-12-21 | 东洋橡胶工业株式会社 | 充气轮胎 |
JP2019064591A (ja) * | 2019-02-05 | 2019-04-25 | Toyo Tire株式会社 | 空気入りタイヤ |
WO2019087980A1 (ja) * | 2017-10-31 | 2019-05-09 | 横浜ゴム株式会社 | 空気入りタイヤ |
WO2020137827A1 (ja) * | 2018-12-27 | 2020-07-02 | 株式会社ブリヂストン | タイヤ |
JP2020199821A (ja) * | 2019-06-07 | 2020-12-17 | 株式会社ブリヂストン | 空気入りタイヤ |
JP2020199819A (ja) * | 2019-06-07 | 2020-12-17 | 株式会社ブリヂストン | 空気入りタイヤ |
JP2021070331A (ja) * | 2019-10-29 | 2021-05-06 | 株式会社ブリヂストン | 空気入りタイヤ |
JP2021070332A (ja) * | 2019-10-29 | 2021-05-06 | 株式会社ブリヂストン | 空気入りタイヤ |
WO2021106817A1 (ja) * | 2019-11-29 | 2021-06-03 | 株式会社ブリヂストン | タイヤ |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160106573A (ko) * | 2013-12-24 | 2016-09-12 | 브리지스톤 어메리카스 타이어 오퍼레이션스, 엘엘씨 | 가변 깊이를 갖는 홈을 구비한 타이어 |
JP6825327B2 (ja) * | 2016-11-22 | 2021-02-03 | 住友ゴム工業株式会社 | 空気入りタイヤ |
EP3378678B1 (en) * | 2017-03-24 | 2021-01-20 | Sumitomo Rubber Industries, Ltd. | Tire |
JP6859802B2 (ja) * | 2017-03-30 | 2021-04-14 | 住友ゴム工業株式会社 | タイヤ |
JP2019111845A (ja) * | 2017-12-20 | 2019-07-11 | 株式会社ブリヂストン | 空気入りタイヤ |
JP7131185B2 (ja) * | 2018-08-02 | 2022-09-06 | 住友ゴム工業株式会社 | 空気入りタイヤ |
JP6927362B1 (ja) * | 2020-04-28 | 2021-08-25 | 住友ゴム工業株式会社 | タイヤ |
JP2022136791A (ja) * | 2021-03-08 | 2022-09-21 | 住友ゴム工業株式会社 | 空気入りタイヤ |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06227211A (ja) * | 1993-02-04 | 1994-08-16 | Bridgestone Corp | 空気入りタイヤ |
JP2012158192A (ja) | 2011-01-28 | 2012-08-23 | Sumitomo Rubber Ind Ltd | 重荷重用空気入りタイヤ |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07329517A (ja) * | 1994-06-13 | 1995-12-19 | Toyo Tire & Rubber Co Ltd | 空気入りラジアルタイヤ |
JP3869102B2 (ja) * | 1997-12-25 | 2007-01-17 | 株式会社ブリヂストン | 空気入りタイヤ |
JPH11301217A (ja) * | 1998-04-24 | 1999-11-02 | Bridgestone Corp | 空気入りタイヤ |
US6227211B1 (en) * | 1998-12-07 | 2001-05-08 | Taiwan Semiconductor Manufacturing Company | Uniformity improvement of high aspect ratio contact by stop layer |
JP2009241882A (ja) * | 2008-03-31 | 2009-10-22 | Yokohama Rubber Co Ltd:The | 重荷重用空気入りタイヤ |
CN102292224B (zh) * | 2009-01-26 | 2014-09-17 | 株式会社普利司通 | 轮胎 |
JP5399808B2 (ja) * | 2009-08-11 | 2014-01-29 | 株式会社ブリヂストン | 空気入りタイヤ |
US20120000645A1 (en) * | 2010-07-04 | 2012-01-05 | Wolfhart Willimczik | Flow controller, particularly blowout preventer (BOP) and smart pipe plug (SPP) |
JP5790166B2 (ja) * | 2011-06-02 | 2015-10-07 | 横浜ゴム株式会社 | 空気入りタイヤ |
-
2014
- 2014-10-02 US US15/024,465 patent/US10266013B2/en active Active
- 2014-10-02 EP EP14853212.0A patent/EP3047984B1/en active Active
- 2014-10-02 WO PCT/JP2014/076393 patent/WO2015056573A1/ja active Application Filing
- 2014-10-02 JP JP2015542569A patent/JP6010704B2/ja not_active Expired - Fee Related
- 2014-10-02 CN CN201480051743.XA patent/CN105555551B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06227211A (ja) * | 1993-02-04 | 1994-08-16 | Bridgestone Corp | 空気入りタイヤ |
JP2012158192A (ja) | 2011-01-28 | 2012-08-23 | Sumitomo Rubber Ind Ltd | 重荷重用空気入りタイヤ |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106240236A (zh) * | 2015-06-15 | 2016-12-21 | 东洋橡胶工业株式会社 | 充气轮胎 |
CN106240243A (zh) * | 2015-06-15 | 2016-12-21 | 东洋橡胶工业株式会社 | 充气轮胎 |
JP2017001612A (ja) * | 2015-06-15 | 2017-01-05 | 東洋ゴム工業株式会社 | 空気入りタイヤ |
JP2017001614A (ja) * | 2015-06-15 | 2017-01-05 | 東洋ゴム工業株式会社 | 空気入りタイヤ |
US10343460B2 (en) | 2015-06-15 | 2019-07-09 | Toyo Tire Corporation | Pneumatic tire |
WO2019087980A1 (ja) * | 2017-10-31 | 2019-05-09 | 横浜ゴム株式会社 | 空気入りタイヤ |
JP2019081492A (ja) * | 2017-10-31 | 2019-05-30 | 横浜ゴム株式会社 | 空気入りタイヤ |
WO2020137827A1 (ja) * | 2018-12-27 | 2020-07-02 | 株式会社ブリヂストン | タイヤ |
JP2019064591A (ja) * | 2019-02-05 | 2019-04-25 | Toyo Tire株式会社 | 空気入りタイヤ |
JP7178962B2 (ja) | 2019-06-07 | 2022-11-28 | 株式会社ブリヂストン | 空気入りタイヤ |
JP2020199819A (ja) * | 2019-06-07 | 2020-12-17 | 株式会社ブリヂストン | 空気入りタイヤ |
JP7217671B2 (ja) | 2019-06-07 | 2023-02-03 | 株式会社ブリヂストン | 空気入りタイヤ |
JP2020199821A (ja) * | 2019-06-07 | 2020-12-17 | 株式会社ブリヂストン | 空気入りタイヤ |
WO2021085021A1 (ja) * | 2019-10-29 | 2021-05-06 | 株式会社ブリヂストン | 空気入りタイヤ |
WO2021085022A1 (ja) * | 2019-10-29 | 2021-05-06 | 株式会社ブリヂストン | 空気入りタイヤ |
CN114630757A (zh) * | 2019-10-29 | 2022-06-14 | 株式会社普利司通 | 充气轮胎 |
CN114641400A (zh) * | 2019-10-29 | 2022-06-17 | 株式会社普利司通 | 充气轮胎 |
JP2021070332A (ja) * | 2019-10-29 | 2021-05-06 | 株式会社ブリヂストン | 空気入りタイヤ |
JP2021070331A (ja) * | 2019-10-29 | 2021-05-06 | 株式会社ブリヂストン | 空気入りタイヤ |
CN114630757B (zh) * | 2019-10-29 | 2023-08-18 | 株式会社普利司通 | 充气轮胎 |
JP7352440B2 (ja) | 2019-10-29 | 2023-09-28 | 株式会社ブリヂストン | 空気入りタイヤ |
JP7399679B2 (ja) | 2019-10-29 | 2023-12-18 | 株式会社ブリヂストン | 空気入りタイヤ |
CN114641400B (zh) * | 2019-10-29 | 2024-03-15 | 株式会社普利司通 | 充气轮胎 |
WO2021106817A1 (ja) * | 2019-11-29 | 2021-06-03 | 株式会社ブリヂストン | タイヤ |
Also Published As
Publication number | Publication date |
---|---|
CN105555551B (zh) | 2020-05-19 |
EP3047984A4 (en) | 2017-06-14 |
US10266013B2 (en) | 2019-04-23 |
JP6010704B2 (ja) | 2016-10-19 |
US20160243898A1 (en) | 2016-08-25 |
CN105555551A (zh) | 2016-05-04 |
JPWO2015056573A1 (ja) | 2017-03-09 |
EP3047984A1 (en) | 2016-07-27 |
EP3047984B1 (en) | 2018-07-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6010704B2 (ja) | 空気入りタイヤ | |
JP5806707B2 (ja) | 空気入りタイヤ | |
US10894446B2 (en) | Tire | |
US10836215B2 (en) | Tire | |
JP4934175B2 (ja) | 空気入りタイヤ | |
JP5903113B2 (ja) | 空気入りタイヤ | |
JP5852608B2 (ja) | 空気入りタイヤ | |
WO2015002096A1 (ja) | 空気入りタイヤ | |
JP6130824B2 (ja) | 重荷重用空気入りタイヤ | |
JP6077934B2 (ja) | 空気入りタイヤ | |
JP5834046B2 (ja) | 空気入りタイヤ | |
JP6450174B2 (ja) | 空気入りタイヤ | |
JP6027500B2 (ja) | 空気入りタイヤ | |
JP6445886B2 (ja) | 空気入りタイヤ | |
JP6848359B2 (ja) | タイヤ | |
EP3025878B1 (en) | Heavy duty pneumatic tire | |
JP2015077941A (ja) | 空気入りタイヤ | |
JP6312902B2 (ja) | 空気入りタイヤ | |
JP2015013603A (ja) | 空気入りタイヤ | |
JP5957496B2 (ja) | 空気入りタイヤ | |
JP6144980B2 (ja) | 空気入りタイヤ | |
JP6312895B2 (ja) | 重荷重用空気入りタイヤ | |
JP6597098B2 (ja) | 空気入りタイヤ | |
JP2023124165A (ja) | タイヤ | |
JP2023124166A (ja) | タイヤ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201480051743.X Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14853212 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2015542569 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15024465 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2014853212 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014853212 Country of ref document: EP |