US20040182487A1 - Tire tread - Google Patents

Tire tread Download PDF

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Publication number
US20040182487A1
US20040182487A1 US10/809,850 US80985004A US2004182487A1 US 20040182487 A1 US20040182487 A1 US 20040182487A1 US 80985004 A US80985004 A US 80985004A US 2004182487 A1 US2004182487 A1 US 2004182487A1
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US
United States
Prior art keywords
incisions
tread
lateral holes
relief
lateral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/809,850
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English (en)
Inventor
Jose Lopez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Michelin Recherche et Technique SA Switzerland
Original Assignee
Michelin Recherche et Technique SA Switzerland
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Michelin Recherche et Technique SA Switzerland filed Critical Michelin Recherche et Technique SA Switzerland
Assigned to MICHELIN RECHERCHE ET TECHNIQUE S.A. reassignment MICHELIN RECHERCHE ET TECHNIQUE S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LOPEZ, JOSE MERINO
Publication of US20040182487A1 publication Critical patent/US20040182487A1/en
Priority to US11/599,465 priority Critical patent/US7703490B2/en
Abandoned legal-status Critical Current

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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
    • B60C11/12—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
    • B60C11/03—Tread patterns
    • B60C11/032—Patterns comprising isolated recesses
    • 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
    • B60C11/032—Patterns comprising isolated recesses
    • B60C11/0323—Patterns comprising isolated recesses tread comprising channels under the tread surface, e.g. for draining water
    • 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
    • B60C2011/1213—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe sinusoidal or zigzag at the tread surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S152/00—Resilient tires and wheels
    • Y10S152/03—Slits in threads

Definitions

  • the invention relates to the tread of a tire designed more particularly to run on snowy, icy or wet surfaces.
  • Such a tread is conventionally provided with elements in relief of the rib or block type, separated from one another in the circumferential direction and/or in the transverse direction by transverse and/or circumferential grooves.
  • the transverse direction is defined as a direction parallel to the axis of rotation of the tire; the transverse direction belongs to a meridian plane.
  • the circumferential direction is perpendicular to the transverse direction and corresponds to the longitudinal direction.
  • the elements in relief are defined by a surface forming part of the surface of the tread and at least one lateral face perpendicular to or oblique relative to the running surface. More generally, the elements in relief comprise at least two faces, the instance of a single face corresponding to elements in relief of rounded section.
  • Such a tread generally further comprises incisions or slits, the widths of which are other than zero but far less than those of the above-mentioned grooves.
  • incisions or slits By making a plurality of cuts opening onto the running surface, a plurality of rubber ridges is created for cutting through the layer of water which may be present on the road, in such a way as to keep the tire in contact with the ground and to create cavities optionally forming ducts intended to collect and remove the water present in the contact zone between the tire and the road once they are disposed in such a way as to open outside the contact zone.
  • Document FR 2 418 719 in particular describes incisions which may be normal to the surface of the tread or inclined relative to the direction perpendicular to said surface.
  • Document FR 791 250 describes incisions following a wavy course over the surface of the tread.
  • the rigidity of the tread is understood to mean the rigidity of the tread under the combined effect of compressive stresses and shearing forces in the area in contact with the road.
  • tipping-over of the elements of the tread pattern is noted, due to shear for example as a result of driving torque or braking torque.
  • This tipping-over causes a reduction in the contact surface, which leads to a reduction in grip.
  • Document EP 0 282 765 describes in particular incisions which exhibit broken or wavy lines over the entire depth thereof. When subject to radial compression, the walls of the incisions move closer to one another, so promoting an increase in longitudinal rigidity, the overlapping of said walls resulting in a self-locking effect.
  • Document FR 2 722 144 also describes incisions, the walls of which each comprise zones in relief formed by protrusions and cavities designed as before to overlap under radial compression. Overlapping then results in an increase in longitudinal and transverse rigidities.
  • the inventors have therefore made it their objective to produce a tread, comprising incisions, for a tire designed to run on snowy, icy or wet surfaces, whose performance with regard to grip is superior to that of the above-mentioned products and more particularly whose contact surface is optimized and whose longitudinal and transverse rigidities are better than those mentioned above.
  • a tire tread comprising elements in relief, comprising at least one lateral face, at least one element in relief being provided with at least one incision defined along a mean plane, the tread comprising at least two lateral holes, oriented in a mean direction, passing through said element in relief and substantially parallel to the mean plane of the incision, said holes opening onto at least one lateral face of said element in relief and at least two lateral holes being situated on one and the same side of the mean plane of the incision.
  • a lateral hole according to the invention is a hole passing through an element in relief which does not open onto the running surface of said element in relief.
  • a lateral hole is separated from the running surface by some of the material constituting said element in relief.
  • tread wear a lateral hole may become apparent on the surface of the tread, whereupon it is no longer deemed to be a lateral hole for the purposes of the invention.
  • the lateral holes open at each of their ends onto a lateral face of said element in relief.
  • a preferred embodiment of the invention provides for at least two lateral holes to be distributed over the height of the incision.
  • the element in relief is advantageously provided with at least two incisions defined along mutually parallel mean planes.
  • the mean direction of the lateral holes forms an angle other than zero with the circumferential direction of the tread.
  • the lateral holes are formed using needles or fingers which penetrate the tread on the longitudinal faces thereof during curing of the tire.
  • these needles may additionally be supported and/or guided by the elements used to form the longitudinal grooves.
  • the invention also covers lateral holes whose mean direction is parallel to the circumferential direction of the tread and, for example, lateral holes whose orifices open onto the transverse faces of the blocks.
  • the mean direction of the lateral holes is substantially parallel to the surface of the tread.
  • Such an embodiment will allow new transverse ridges to appear at the surface of the tread during the course of wear thereto, which new ridges will be in addition to those corresponding to the incisions. These new ridges result from the emergence of the lateral holes at the surface of the tread due to wear thereto. These new ridges naturally contribute to the effectiveness of the grip of the tire in the presence of a film of water on the ground.
  • the incisions are defined along a substantially meridian mean plane. Since the role of the incisions is essentially to contribute to breaking the film of water by the presence of their ridges, an arrangement substantially transverse to the direction of travel is best.
  • the lateral holes according to the invention are then also formed in the transverse direction.
  • the sectional area of the lateral holes is between 0.75 and 5 mm 2 .
  • Such dimensions are compatible in particular with the production methods described above. For smaller dimensions, production would be difficult due to the excessive multiplication of the number of holes which would have to be produced to obtain the desired effect, which would lead to excessive overcrowding of the tools needed to produce said holes. Above these dimensions, the lateral holes could disturb proper functioning of the tire, in particular from the point of view of noise, when they arrive at the surface after wear to the tread.
  • the lateral holes may exhibit sections of different shapes and in particular either polygonal or elliptical.
  • the section of the hole is circular; the deformation of the hole obtained during compression of the tread leads to easier deformation in the transverse direction.
  • the diameter of the section is between 1 and 2.5 mm.
  • the incisions are of the self-locking type. These may for example be incisions such as those mentioned above; these being, for example, incisions exhibiting broken or wavy lines over their entire depth.
  • the incisions may also be of the type whose walls each comprise zones in relief formed by protrusions and cavities or indeed incisions of variable thickness over their height.
  • the combination according to the invention of such incisions with the lateral holes will, by increasing the longitudinal deformation of the tread, increase the movement towards one another of the walls of the incisions whose self-locking effect increases rigidity, the risk of one wall sliding against the other being ruled out.
  • a variant embodiment of the invention provides that, in an element in relief, and between two incisions, the lateral holes are distributed along at least two planes substantially parallel to one another and substantially parallel to the mean planes of the incisions. Such a distribution of the holes will allow the number of incisions to be reduced and consequently tends to improve longitudinal rigidity independently of the increase in compressibility.
  • the holes create at the surface of the tread ridges which fulfil a function identical to that of the incisions; it is thus possible to reduce the number of incisions on the tread, the holes replacing them. With the number of incisions being reduced, longitudinal rigidity increases relative to a greater number of incisions.
  • the lateral holes are offset radially from one column to the other such that said holes are so distributed that they zigzag from one plane to the other.
  • Such an arrangement in particular allows an adequate and virtually constant number of ridges to be maintained on the running surface.
  • the centers of said lateral holes are spaced in a radial direction from one column to the other by a length less than the sum of the radii of said holes.
  • FIG. 1 is a diagram of an elevational view in the transverse direction of the tread of a structural element according to the invention
  • FIG. 2 is a diagram of an elevational view in the transverse direction of the tread of the structural element of FIG. 1 in the compressed state
  • FIG. 3 is a diagram of an elevational view in the transverse direction of the tread of a second structural element according to the invention.
  • FIG. 5 is a diagram of an elevational view in the transverse direction of the tread of a fourth structural element according to the invention.
  • the incisions shown have the advantage, however, of being of the self-locking type and of contributing to an increase in longitudinal rigidity. In effect, independently of the invention, it would appear that the geometry of these incisions results in locking of the walls one by the other when they move towards one another due to shearing of the block 1 , and thus of the walls of the incisions in the longitudinal direction, when the tire rotates.
  • Other incisions of the self-locking type do exist, for example incisions exhibiting wavy lines over their entire depth.
  • the incisions may also be of the type whose walls each comprise zones in relief formed by protrusions and cavities or indeed incisions of variable thickness over their height.
  • FIG. 1 also shows the lateral holes 6 according to the invention, which pass through the blocks 1 substantially transversely and parallel to the incisions 4 and to the axis of rotation of the tire.
  • the presence of these lateral holes 6 passing transversely through the blocks 1 gives rise to various functions.
  • lateral holes 6 these finish by appearing at the surface of the tread, such as for example the holes 7 in FIG. 1, and form ridges 8 at the surface of the tread.
  • These ridges 8 are substantially parallel to the ridges 5 formed by the incisions 4 and extend over the entire width of the blocks 1 , since the lateral holes 6 pass through said blocks 1 and are substantially parallel to the incisions 4 and to the axis of rotation of the tire.
  • These ridges 8 which have their origin in the wear suffered by the tread, are in addition to the ridges 5 and contribute to the grip performance of the tire. Their presence will in particular allow a reduction in the number of incisions 4 and thus the obtainment of larger gaps between these incisions, thereby permitting a larger number of lateral holes 6 or the option of more widespread distribution of these lateral holes 6 .
  • the last function of the lateral holes 6 relates to manufacture of the tire.
  • the conventional manufacturing methods consist, at the time of curing of the tire, in introducing blades through the tread, said blades having the shape which it is wished to impart to the incision. After curing, said blades are withdrawn with the curing mould, but difficulties often arise, in particular in the case of incisions of the self-locking type, which, as stated above, are of particular interest when combined with the lateral holes according to the invention.
  • the shapes of the blades of self-locking type require such deformation of the rubber compound that the presence of the lateral holes 6 again becomes an advantage, since they allow this deformation to be obtained without the risk of damage to the tire.
  • the incisions 6 which form broken lines are in phase opposition with regard to two successive incisions 6 on the block 1 .
  • such a configuration is particularly advantageous with regard to contributing to an increase in longitudinal rigidity but is very difficult to remove from the mould.
  • the lateral holes 6 will facilitate demolding.
  • the lateral holes 6 are distributed between two incisions 4 of the block 1 in three columns oriented radially and thus substantially parallel to the main direction of the incisions, in accordance with an elevational view.
  • the spacing between two lateral holes in one column is the same in all three columns.
  • the position of the lateral holes 6 from one column to another is such that no continuous longitudinal rubber tread remains between two incisions 4 over the space filled with the lateral holes; this distribution allows the avoidance of a localized rubber zone which is virtually undeformable. In other words, this distribution allows the obtainment of substantially homogeneous longitudinal deformation, at the very least sequentially, over the height of the block 1 , or more precisely over the height corresponding to the depth of the incisions 4 .
  • FIG. 3 is an elevational view of a longitudinal face of a block 10 and shows a regularly spaced distribution of lateral holes 11 in one column between two incisions 12 .
  • this distribution represents a more homogeneous distribution of the lateral holes, that is to say that the relative positions of the lateral holes relative to the incisions are similar throughout. In other words, the influence of the lateral holes 11 on the moving together of the walls of the incisions 12 is always the same for each lateral hole.
  • FIG. 4 which represents an elevational view of the longitudinal face of a block 13 comprising lateral holes 14 distributed between incisions 15 , shows a three-column distribution exhibiting the same characteristics as in FIG. 3.
  • the distribution of the lateral holes 14 is such that their influence on the walls of the incisions 15 is similar at all the incision levels.
  • the lateral holes according to the invention are not limited to cylindrical shapes; first of all, as already mentioned above, the section of the lateral holes according to the invention may be of any type. Moreover, the invention provides for lateral holes to be produced which exhibit a helicoidal geometry. Such embodiments of lateral holes are of particular interest when combined with incisions whose walls each comprise zones in relief formed by protrusions and cavities or alternatively incisions of variable thickness over the height thereof. The helicoidal form of the lateral holes will allow the lateral holes to exert a substantially homogeneous influence on the incisions, in the transverse direction of the block or element in relief.
  • the invention advantageously provides a motorized mechanism which allows this withdrawal to be performed with rotation of said tools so as not to risk damaging the tire.
  • the invention thus describes a combination of incisions and lateral through-holes, substantially parallel to the mean plane of said incisions in a structural block or element in relief of the tread of a tire. It shows that this combination is of particular interest with regard to improving the grip of the tires on a surface which for various reasons is damp.
  • the presence of lateral holes according to the invention allows the compressibility of the tread of the tire to be increased; less deformation of said tread thus occurs as a result of the shearing at the time of contact with the ground and thus said contact surface is increased, which results in an improvement in tire grip.
  • lateral holes advantageously oriented in a direction parallel to the surface of the tread, creates, as a result of wear, new ridges at the surface of the tread which assist the incisions in cutting the film of water present on the surface of the ground and thus in improving tire grip.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
US10/809,850 2001-09-27 2004-03-26 Tire tread Abandoned US20040182487A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/599,465 US7703490B2 (en) 2001-09-27 2006-11-15 Tire tread with elements in relief having incisions and holes

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0112469A FR2829970B1 (fr) 2001-09-27 2001-09-27 Bande de roulement pour pneumatique
FR01/12469 2001-09-27
PCT/EP2002/010560 WO2003029031A1 (fr) 2001-09-27 2002-09-20 Bande de roulement pour pneumatique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/010560 Continuation WO2003029031A1 (fr) 2001-09-27 2002-09-20 Bande de roulement pour pneumatique

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/599,465 Continuation US7703490B2 (en) 2001-09-27 2006-11-15 Tire tread with elements in relief having incisions and holes

Publications (1)

Publication Number Publication Date
US20040182487A1 true US20040182487A1 (en) 2004-09-23

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ID=8867688

Family Applications (2)

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US10/809,850 Abandoned US20040182487A1 (en) 2001-09-27 2004-03-26 Tire tread
US11/599,465 Expired - Fee Related US7703490B2 (en) 2001-09-27 2006-11-15 Tire tread with elements in relief having incisions and holes

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/599,465 Expired - Fee Related US7703490B2 (en) 2001-09-27 2006-11-15 Tire tread with elements in relief having incisions and holes

Country Status (8)

Country Link
US (2) US20040182487A1 (enExample)
EP (1) EP1444103B1 (enExample)
JP (1) JP4249022B2 (enExample)
CN (1) CN1558835A (enExample)
AT (1) ATE334006T1 (enExample)
DE (1) DE60213445T2 (enExample)
FR (1) FR2829970B1 (enExample)
WO (1) WO2003029031A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050081971A1 (en) * 2003-10-17 2005-04-21 Richard Heinen Progressive tire tread wear indicator
US20180345733A1 (en) * 2015-11-24 2018-12-06 Bridgestone Corporation Pneumatic tire

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4511253B2 (ja) * 2004-06-15 2010-07-28 株式会社ブリヂストン 空気入りタイヤ
FR2925394B1 (fr) * 2007-12-21 2011-06-10 Michelin Soc Tech Pneumatique, moule pour la vulcanisation de ce pneumatique, procede de fabrication de ce moule et matrice de moule
FR2939364B1 (fr) * 2008-12-05 2010-11-19 Michelin Soc Tech Bande de roulement comportant des incisions et des cavites
KR101287507B1 (ko) 2011-09-23 2013-07-18 한국타이어 주식회사 중하중용 공기입 스노우 타이어
JP5480869B2 (ja) * 2011-10-26 2014-04-23 住友ゴム工業株式会社 重荷重用空気入りタイヤ
JP6511365B2 (ja) * 2015-08-26 2019-05-15 住友ゴム工業株式会社 空気入りタイヤ
DE102016220186A1 (de) 2016-10-17 2018-04-19 Continental Reifen Deutschland Gmbh Verfahren und Vorrichtung zum Einbringen von Aussparungen in die Seitenfläche eines Profilblockelements
DE102016220187A1 (de) 2016-10-17 2018-04-19 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102017201521A1 (de) 2017-01-31 2018-08-02 Continental Reifen Deutschland Gmbh Reifen oder technischer Gummiartikel mit einem profilierten Laufstreifen mit Profilblockelementen und ein Verfahren zur Herstellung eines Reifens oder technischen Gummiartikels sowie eine entsprechende Vorrichtung
DE102018211146A1 (de) 2018-07-06 2020-01-09 Continental Reifen Deutschland Gmbh Lamelle zur Verwendung in einer Vulkanisationsform zur Herstellung eines Fahrzeugreifens, eine entsprechende Vulkanisationsform, sowie ein Fahrzeugluftreifen und Verfahren zur Herstellung des Fahrzeugluftreifens
WO2020096027A1 (en) 2018-11-08 2020-05-14 Compagnie Generale Des Etablissements Michelin An article, in particular a tire

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848651A (en) * 1971-09-15 1974-11-19 Dunlop Ltd Tire tread having drainage chambers
US4298046A (en) * 1979-07-24 1981-11-03 Compagnie Generale Des Etablissements Michelin Winter tire
US4794965A (en) * 1987-03-10 1989-01-03 Compagnie Generale Des Etablissements Michelin Tread for radial tire the elements in relief of which are provided with incisions having broken line or undulated line traces in the direction of their depth
US5176765A (en) * 1988-04-13 1993-01-05 Bridgestone Corporation Pneumatic tire having outer tread layer of foam rubber
US5783002A (en) * 1994-07-05 1998-07-21 Compagnie Generale Des Etablissements Michelin - Michelin & Cie Tire tread including incisions
US6143223A (en) * 1997-12-24 2000-11-07 Compagnie Generale Des Etablissements Michelin - Michelin & Cie Process and molding element for molding a groove in a tire tread
US6427738B1 (en) * 1997-06-18 2002-08-06 Bridgestone Corporation Tire and vulcanized rubber including elongated cells
US6564840B2 (en) * 1998-03-24 2003-05-20 Continental Aktiengesellschaft 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
US6874552B2 (en) * 2000-02-17 2005-04-05 Michelin Recherche Et Technique S.A. Tread having offset first and second incisions

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR791250A (fr) 1935-06-13 1935-12-06 Michelin & Cie Perfectionnement à la surface de roulement des pneumatiques
GB1002317A (en) * 1962-10-04 1965-08-25 Reggie Hopwood Improvements in tyres for vehicles
JPH02246809A (ja) * 1989-03-20 1990-10-02 Bridgestone Corp 制動性に優れた空気入りタイヤ
JPH0781316A (ja) 1993-09-17 1995-03-28 Sumitomo Rubber Ind Ltd 多孔トレッドを有するラジアルタイヤ
JPH09164817A (ja) 1995-12-15 1997-06-24 Yokohama Rubber Co Ltd:The 冬期用空気入りラジアルタイヤ
DE19611349A1 (de) * 1996-03-22 1997-09-25 Basf Ag Polymerisate mit 2,3-Dihydrofurangruppen
JP2000247113A (ja) * 1999-02-25 2000-09-12 Bridgestone Corp 空気入りタイヤ
DE69915663D1 (de) 1999-07-01 2004-04-22 Bridgestone Corp Vulkanisierform und verfahren zum vulkanisieren von reifen
JP4577929B2 (ja) * 1999-10-26 2010-11-10 株式会社ブリヂストン 空気入りタイヤ
KR20030085107A (ko) 2001-04-10 2003-11-01 소시에떼 드 테크놀로지 미쉐린 보강 구조체를 갖는 타이어
EP1447426B1 (en) * 2001-09-28 2009-07-29 Bridgestone Corporation Rubber composition pneumatic tire and method of manufacturing the pneumatic tire

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848651A (en) * 1971-09-15 1974-11-19 Dunlop Ltd Tire tread having drainage chambers
US4298046A (en) * 1979-07-24 1981-11-03 Compagnie Generale Des Etablissements Michelin Winter tire
US4794965A (en) * 1987-03-10 1989-01-03 Compagnie Generale Des Etablissements Michelin Tread for radial tire the elements in relief of which are provided with incisions having broken line or undulated line traces in the direction of their depth
US5176765A (en) * 1988-04-13 1993-01-05 Bridgestone Corporation Pneumatic tire having outer tread layer of foam rubber
US5783002A (en) * 1994-07-05 1998-07-21 Compagnie Generale Des Etablissements Michelin - Michelin & Cie Tire tread including incisions
US6427738B1 (en) * 1997-06-18 2002-08-06 Bridgestone Corporation Tire and vulcanized rubber including elongated cells
US6143223A (en) * 1997-12-24 2000-11-07 Compagnie Generale Des Etablissements Michelin - Michelin & Cie Process and molding element for molding a groove in a tire tread
US6564840B2 (en) * 1998-03-24 2003-05-20 Continental Aktiengesellschaft 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
US6874552B2 (en) * 2000-02-17 2005-04-05 Michelin Recherche Et Technique S.A. Tread having offset first and second incisions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050081971A1 (en) * 2003-10-17 2005-04-21 Richard Heinen Progressive tire tread wear indicator
US7011126B2 (en) * 2003-10-17 2006-03-14 The Goodyear Tire & Rubber Company Progressive tire tread wear indicator
US20180345733A1 (en) * 2015-11-24 2018-12-06 Bridgestone Corporation Pneumatic tire
US10850570B2 (en) * 2015-11-24 2020-12-01 Bridgestone Corporation Pneumatic tire

Also Published As

Publication number Publication date
US20070102084A1 (en) 2007-05-10
ATE334006T1 (de) 2006-08-15
FR2829970A1 (fr) 2003-03-28
JP2005503955A (ja) 2005-02-10
CN1558835A (zh) 2004-12-29
DE60213445D1 (de) 2006-09-07
US7703490B2 (en) 2010-04-27
WO2003029031A1 (fr) 2003-04-10
FR2829970B1 (fr) 2004-05-14
EP1444103B1 (fr) 2006-07-26
EP1444103A1 (fr) 2004-08-11
DE60213445T2 (de) 2007-01-04
JP4249022B2 (ja) 2009-04-02

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