• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Tread (10) for a truck tire having a tread surface (100) in the new state, said belt comprising on at least a first axial portion (M) of the belt at least one undulating groove (2, 4) in the thickness of the strip and continues in a first direction and a plurality of undulating grooves (6, 7) in the thickness of the strip and continuous in a second direction, the undulating grooves (6, 7) according to the second direction being connected to at least one undulating groove (2, 4) in the first direction, and on at least one second axial portion (B) of the band at least one undulating groove (1, 5) in the thickness of the strip and continues in a third direction and a plurality of undulating grooves (6, 7) in the thickness of the strip and continuous in a fourth direction, the undulating grooves (6, 7) of the second axial portion (B) of the strip oriented in the fourth direction being connected at least one undulating groove (1, 5) in the third direction, said tread (10) being such that in new condition, the open portions on the running surface of the first axial portion (M) are connected to each other to form a continuous surface network and in that the parts open on the running surface of the second axial portion (B) are disjointed from each other, and from partial wear the parts on a new rolling surface (100 ') of the second axial portion (B) are connected to each other to form a continuous surface network and in that the open parts on the new running surface (100') of the first axial part (M) are disjoint from each other.
    公开号:FR3014022A1
    申请号:FR1361934
    申请日:2013-12-02
    公开日:2015-06-05
    发明作者:Stephanie Cambon；Damien Bardin；Jonhatan Lejeune
    申请人:Michelin Recherche et Technique SA Switzerland ；Compagnie Generale des Etablissements Michelin SCA；Michelin Recherche et Technique SA France；
    IPC主号:
    专利说明:

    [0001] - 1 - EVOLUTIVE BEARING TIRE TIRE. FIELD OF THE INVENTION (0001) The invention relates to tire treads and more particularly to tread patterns of such treads as well as tires provided with such treads whose performance in drainage of water on the roadway in rainy weather are made perennial, these treads having improved performance in the form of wear. STATE OF THE ART (0002) In known manner, conditions for driving in rainy weather require the fastest possible elimination of water in the contact region of each tire with the roadway in order to ensure contact with the road. tread with the roadway. The water that is not pushed onto the front of the tire flows partly into the grooves and incisions formed in the tread of the tire either in the circumferential or transverse direction. (0003) A cutout generically designates either a groove or an incision and corresponds to the space delimited by walls of material facing each other and distant from each other by a non-zero distance (called "width"). of the cutout "). (0004) Groove means here a cutout opening on a running surface intended to be in contact with the roadway, this cutout having an appropriate average width so that the material walls which delimit it are never in contact with each other. on each other under the normal conditions of use of the tire. The grooves may have any shape seen in cross section and in trace on the running surface and be oriented in any direction. Trace of a groove on the running surface here means the geometric mean line followed by the ridges 25 formed by said groove on said surface. (0005) Incision here means a thin slot having a low average width and such that, under certain conditions of stress, the material walls delimiting it may come, at least partially, in contact with one another during passage in the area of contact with the road. - - - - 2 - (0006) In the present description, the terms radial or radial are used to indicate a direction which, when taken on the tire, is a direction perpendicular to the axis of rotation of the tire; when it is taken on a tread alone, it corresponds to the direction of the thickness of said tread. In addition, the term circumferential is used to indicate a direction which corresponds to a direction tangent to any circle centered on the axis of rotation of the tire. This same direction corresponds to the longitudinal direction of the tread, which is formed in the manner of a flat strip before incorporation into the manufacture of a tire. (0007) The fact of producing a plurality of grooves on a tread has the disadvantage of reducing the amount of web material for a given web width and consequently of reducing the tire operating time associated with a tire. increase in the speed of wear. (0008) Furthermore, the grooves generate a decrease in compression and shear stiffness since these grooves delimit portions of material more sensitive to deformation compared to the portions delimited by incisions. Indeed, in the case of incisions the walls of material delimiting these incisions can come into contact with each other at least in the passage in the region of contact with the roadway. This reduction in rigidity, in the case of the presence of grooves, induces an increase in deformations and generates a decrease in the wear performance of the band: greater wear is observed for a fixed distance traveled (this corresponds to an increase in the speed of wear of the band). Moreover, there is an increase in the rolling resistance and therefore in the consumption of vehicles equipped with such tires, resulting from an increase in hysteretic losses related to the deformation cycles of the material composing the tread. (0009) Regardless of the tire category (ie whether it is a passenger car tire or a heavy load vehicle), the tread must have a performance in drainage of the water present on the road which is always above a minimum performance called safety performance. Consequently, and in view of the progressive wear of the tread, which progressively reduces the cross-sections of the grooves, it is customary to make grooves opening on the running surface in new condition. and extending in the thickness of the strip to at least one level which corresponds to a limit requiring removal of the strip. This has the disadvantage of significantly lowering the stiffness of said strip (both the compression stiffness and the shear stiffness). (0010) It has been proposed in the document published under the number WO 2011/039194 to form in a tread grooves having the characteristic of opening discontinuously on the running surface of the strip in new condition . This groove can be considered as being undulating in the thickness of the strip by opening regularly on the running surface. This groove comprises a succession of open parts (open cavities) that is to say opening on the running surface in the new state and closed parts (closed cavities) that is to say do not not opening directly on this running surface in new condition. These last so-called closed parts are intended to form new grooves opening on a running surface after partial wear of the strip. An undulating groove may be formed in the circumferential direction or in any other direction in a tread. As described in document WO 2011/039194, an undulating groove is continuous in the initial state (corresponding to the new state of the strip after molding), which makes it possible to ensure, when running on a road paved with water, a capture of the water during the passage in the contact with the roadway, the captured water circulating in the undulating groove under the running surface. This same document describes the possibility, like the sculpture drawings of the state of the art, to make connections between at least two undulating grooves. BRIEF SUMMARY OF THE INVENTION (0011) The present invention seeks to efficiently organize this type of undulating grooves in a tread for a truck tire. Indeed, it is known that one of the performances subject to continuous improvement works is to obtain conditions that do not develop irregular wear or at the very least delay the appearance of this type of wear as much as possible. 'wear. Irregular wear means in this document, the appearance of a more pronounced wear on an axial portion of the tread. In contrast, regular wear - - - - - 4 - sought by the skilled person - affects the entire width of the tread uniformly or substantially uniformly until the tire is removed for renewal of its tread. bearing or for the installation of a new tire. (0012) The object of the invention is to provide a tread provided with grooves and incisions to have a performance equal to or greater than the minimum safety performance in drainage and this regardless of the level of wear of this band while limiting irregular wear while reducing hollow volumes just needed. (0013) For this purpose, the subject of the invention is a tread for a truck tire of a total thickness E and a width W, this tread having a running surface intended to come into contact with a roadway. during rolling, said strip comprising: (0014) - at least a first axial portion comprising at least one undulating groove in the thickness of the strip and continuous in a first direction and a plurality of undulating grooves in the thickness of the strip and continuous in a second direction, each undulating groove comprising a plurality of open portions on the running surface in the new state and a plurality of closed parts under the running surface, the closed portions being connected to the open portions being arranged in alternation (i.e. an open portion is flanked by two closed portions), each closed portion being spaced from the running surface by a bridge of rubber, the undulating grooves in the second direction being connected to at least one undulating groove in the first direction, (0015) - at least one second axial portion of the strip comprising at least one undulating groove in the thickness of the strip and continuous in a third direction and a plurality of undulating grooves in the thickness of the web and continuous in a fourth direction, each undulating groove comprising a plurality of open portions on the running surface in new condition and a plurality of portions; closed, the closed portions being connected to the open portions being arranged alternately (that is, an open portion is flanked by two closed parts), each closed portion being spaced from the running surface in the state nine by a rubber bridge, the undulating grooves of this second axial part of the band oriented in the fourth direction being connected are at least one undulating groove in the third direction. (0016) This tread is such that: (0017) - when new, the open parts on the tread surface of the first axial part are connected to each other to form a continuous surface network and in that that the open parts on the running surface of the second part are disjoint from each other, (0018) - and such that, from partial wear, the open parts on a new running surface of the second axial part are connected to each other to form a continuous surface network and that the open portions on the new running surface of the first portion are disjoint from each other. (0019) A rubber bridge corresponds to the portion of the tread radially outside each section of the undulating grooves; this rubber bridge 15 may be continuous or cut by an incision which is known to close at the passage in the contact. (0020) The term "undulating" can be interpreted in the present description as meaning zigzag (series of broken lines) or oscillating (like a sinusoid) between two levels in the thickness of the strip, one of these levels 20 corresponding to the running surface in new condition. (0021) Each continuous and undulating cavity (or groove) in the thickness of the strip has an average cross-section, the area of this section being able to be constant or to vary around a mean value to ensure fluid flow in said groove. (0022) By interconnected grooves, it is meant that the flow of fluid within a groove connected to another groove may interfere with the flow of fluid within the other groove. (0023) With this tread structure, a hollow volume is obtained suitable for achieving a satisfactory drainage in new condition and this regardless of the --- level 6 of wear while limiting the reduced rigidity of the tread when new, this cavity volume being formed by the open parts (also called: external cavities) in a first time of use and then by the closed parts (also called: internal cavities) in another time of use, these internal and external cavities being interconnected to allow the circulation of liquid in each groove. By creating in the new state a first continuous and open network on the running surface, the draining power of the sculpture of the tread is reinforced. By forming, in at least one other part of the tread, another network after a partial wear, this ensures a more regular wear, the stresses in the band being distributed differently between the new state and a partially state. worn. (0024) Preferably, for certain types of tires according to the invention, it is advantageous that the tread is such that the first axial portion corresponds to the median portion of the tread and that the second axial portion corresponds to parts of the tread located on either side of the median portion. This median portion extends on either side of the equatorial median plane, over a width equal to at least 15% and at most 85% of the total width W of the band. (0025) In another preferred embodiment and for other types of tires according to the invention, the tread is such that the first zone is formed on each shoulder of the tire over a width equal to at least 15% and at most 85% of the total width 20 W of the strip and even more preferably between 30% and 65%. (0026) In a variant of the invention, the strip further comprises a plurality of incisions opening on the running surface of the band in the new state, each of said incisions opening in two consecutive open parts of a same undulating groove and in a closed part of the same undulating groove, this closed portion 25 being located between said two open parts. This variant generates a large number of edges of material useful to achieve excellent performance in motricity. (0027) To maintain a satisfactory level of rigidity of the tread according to the invention it is advantageous for the incisions extending the internal and external cavities to be provided with means for mechanically locking the relative displacements of the walls facing each other. delimiting said incisions. Such means may take the form of corrugation of the walls facing each other or reliefs molded on said walls and suitable for cooperating together. Thus besides the usual mechanism of closing the incisions during the passage in the contact, it is possible to ensure a mechanical blocking walls delimiting the incisions. (0028) The invention also relates to a tire provided with a tread defined according to the invention, this tread radially outwardly surmounting a tire casing consisting of a carcass reinforcement and a reinforcing armature. Mountain peak. The tread of this tire is made as one of the previous variants, with some dimensions of the grooves being related to an average length of the contact surface of the tread with the road surface obtained under the conditions of use of the tire. (0029) It is advantageous if there is, for each circumferentially oriented groove formed of portions opening on the running surface and closed parts underlying the running surface, at least one open portion on the rolling surface that is permanently in contact to allow good drainage. If T is the average length of the area of contact with the roadway under the nominal conditions of use of the tire provided with a tread according to the invention (this average length being obtained by dividing the total area delimited by the external contour of this contact surface by the width W of said surface), it is even more preferential that the average length of the open parts in the new state of the circumferential grooves is between 25% and 75% of the average length T of the contact surface. Other features and advantages of the invention will become apparent from the description given hereinafter with reference to the accompanying drawings which show, by way of nonlimiting examples, embodiments of the object of the invention. . BRIEF DESCRIPTION OF THE FIGURES (0031) FIG. 1 shows a partial view of the tread surface of a tread of a tire in new condition according to the invention; (0032) FIGS. 2a, 2b, 2c, 2d show sections taken in FIG. 1 along sectional planes marked by lines II-IIa, IIb-IIb, IIc-IIc, IId-IId respectively; Fig. 3 shows a view of the running surface after partial wear of the tread shown in Fig. 1; (0034) Figure 4 shows a sectional view along a line IV-IV taken on the tread after partial wear as shown in Figure 3.
    [0002] DESCRIPTION OF THE FIGURES (0035) To facilitate the reading of the figures, identical reference signs are used for the description of variants of the invention since these reference signs refer to elements of the same nature as this nature is structural. or functional. (0036) Figure 1 shows a partial view of the tread of a tread of a tire in new condition according to the invention. (0037) This figure 1 shows part of a tread 10 in new condition intended to equip a tire for heavy vehicle of size 315 / 70R22.5. (0038) This strip 10 has a running surface 100 intended to come into contact with the roadway during driving on a width W equal to 290 mm. (0039) This tread is provided with five grooves 1, 2, 3, 4, 5 of generally circumferential orientation. A medial circumferential groove 3 is located on the median plane of the tread; this middle groove 3 has an average width equal to 6 mm. On either side of this central groove 3 there are two undulating grooves 2, 4 in the thickness of the strip and continuous in the circumferential direction, these undulating grooves having the characteristic of opening intermittently on the rolling surface. in the new state by open parts 21, 41 respectively. These groove portions opening on the running surface in new condition extend in the thickness of the strip by closed parts 22, 42 respectively underlying the running surface, to ensure a continuity of the circulation of fluid in each groove. These two undulating grooves 2, 4 delimit axially between them a median portion M of the strip; the width Lm of this middle part corresponds in this case to 30% of the total width W of the tread. - - - - 9 - (0040) Axially outside the middle part M, there are lateral parts B of width Lb equal in this case to 35% of the total width W. On each lateral part B it is molded two undulating grooves 1, 5 in the thickness of the strip and continuous in the circumferential direction. These undulating grooves 1, 5 have the characteristic of opening intermittently on the running surface in new condition by open parts 11, 51 respectively. The open portions 11, 51 of these undulating grooves 1, 5 of the lateral portions B are circumferentially offset with respect to the open portions 21, 41 of the undulating grooves 2, 4 delimiting the median portion. (0041) In addition, a plurality of oblique cuts on either side of the median plane can be distinguished. These oblique cutouts form a chevron pattern conferring a directionality to the tread sculpture design. Preferably, the oblique cuts have an angle other than zero and even more preferably at least 10 degrees, this angle being measured with the axial or transverse direction.
    [0003] In this case the angle of these cuts is equal to 15 degrees with the transverse direction. (0042) Among these oblique cuts are undulating oblique grooves 6, 7 in the thickness of the tread. These undulating oblique grooves 6, 7 extend from the median plane to the circumferential undulating grooves 1, 5 axially the outermost and intersect the intermediate undulating grooves 2, 4. (0043) These oblique undulating grooves 6 , 7 have an average width equal to 6 mm and extend in the thickness of the tread over a total height equal to 13 mm. a maximum depth equal to 7 mm. These oblique undulating grooves 6, 7 each comprise an open portion 61, 71 on the running surface in new condition having a depth equal to 7 mm; each open portion 61, 71 is extended in the thickness and under the running surface of the strip in new condition by a closed portion 62, 72 respectively, these closed portions having a height equal to 6 mm. The oblique undulating grooves 6, 7 are in phase with one another on either side of the median plane. (0044) As seen in FIG. 1, the connections established between the different circumferential undulating grooves 2, 4 and the oblique-corrugated grooves 6, 7 make it possible to produce two open networks on the rolling surface. in new condition, each of these networks having a zigzag geometry. In this figure 1 these networks are marked by lines R1 and R2 in dashed lines. (0045) In addition there is a plurality of incisions of the same orientation as the oblique undulating grooves. Between two oblique undulating grooves 6, 7 are formed two incisions opening on the running surface in the new state and extending to the depth of the circumferential groove 3 formed on the median plane. (0046) All undulating grooves, whether circumferential or oblique, described for this variant of the invention are extended - radially outwardly from the closed portions underlying the running surface - by incisions opening both in these closed parts and on the running surface in new condition. These incisions also extend to the open parts on the running surface in new condition. (0047) As can be seen in Figure 1, the open portions on the running surface in the new state of the middle portion form with the medial circumferential groove a continuous surface network on the running surface in the state new. (0048) When new, this surface drainage network is completed, both on the middle part and on each lateral part, by a drainage network in the thickness of the tread due to the presence undulating circumferential grooves in the thickness. (0049) FIGS. 2a, 2b, 2c, 2d show sections taken in FIG. 1 along section planes whose traces in FIG. 1 are indicated by the lines IIa-IIa, IIbIIb, IIc-IIc, IId-IId respectively. (0050) Figures 2a, 2b show in section the undulating circumferential grooves in the new state. FIG. 2a shows the circumferential groove 3 formed on the median plane and the undulating circumferential grooves 1 and 2. This figure shows the closed portion 12 of the undulating groove 1 extended towards the rolling surface by an incision 13 The closed portion 12 of the undulating groove 1 30 extends in the tread to a depth equal to the depth of the middle groove 3. In addition, the open portion 21 on the tread surface 100 of the tread is shown. undulating groove 2 which extends inwards by an incision 23 '. (0051) We distinguish in Figure 2b, the circumferential groove 3 formed on the median plane and the undulating circumferential grooves 1 and 2. This figure shows the open portion 11 of the undulating groove 1 on the running surface 100 to the new state, this open portion 11 extending inwardly by an incision 13 '. We also see the closed part 22 of the undulating groove 2 extended towards the rolling surface by an incision 23. (0052) FIGS. 2c, 2d show in cross-section the undulating oblique grooves 6. Which is shown for these undulating oblique grooves 6 also applies to the oblique undulating grooves 7 formed on the other side of the tread with respect to the median plane. (0053) FIG. 2c shows incisions 8 formed on either side of an undulating oblique groove 6, the closed part 62 of which is extended radially towards the running surface 100 in the new state by a incision 63. (0054) FIG. 2d shows the open portion 61 of the undulating oblique groove 6 extended radially inwards by an incision 63 '. (0055) FIG. 3 shows a view of the running surface 100 'after a partial wear equal in this case to 55% of the total thickness to be used with the tread shown in FIG. new. (0056) After partial wear, the tread pattern changes to a new geometry, the closed portions of the undulating grooves opening on the tread surface to form open groove portions. (0057) To maintain an effective edge length, the portions of the undulating grooves initially present on the strip in the new state are internally extended by incisions, regardless of the undulating groove in question. (0058) On each shoulder part, a continuous network of grooves is formed, this open network on the running surface 100 'combines with the circumferential middle groove 3 to ensure the drainage of the water present on the roadway in rainy weather. Said networks are represented by dashed lines R3 and R4. (0059) The surface network R3 combines the initially closed portions 12, 22 underlying the rolling surface in the new state of the circumferential undulating grooves 1 and 2 with the closed portions 62 underlying the undulating oblique grooves 6 (0060) The surface network R4 combines the initially closed portions 42, 52 underlying the rolling surface in the new state of the circumferential undulating grooves 4 and 5 with the closed portions 72 underlying undulating oblique grooves. 7. (0061) FIG. 4 shows a sectional view along a line IV-IV taken on the tread after partial wear as shown in FIG. 3. On the new running surface 100 'open incisions 13 ', 43' and the initially closed portions 22 and 52 of the undulating grooves 2 and 5 respectively. The circumferential groove 3 remains in the middle part. (0062) With this modification of the surface drainage networks, it is possible to limit the appearance of irregular wear while having adequate drainage throughout the life of the body. use of the tread according to the invention. By proceeding in this way, the tread according to the invention makes it possible to ensure regular wear while at the same time adjusting the volume of the cavities of the different cutouts more precisely so as to affect the rigidities of the strip as little as possible. (0063) A tread according to the invention can be implemented for a new tire or when renewing the tread of a used tire. (0064) In another variant not shown here, the provisions of Figure 3 are applied to a tread in new condition while the provisions of Figure 1 correspond to that of the same band after partial wear . This means that in the new state the surface drainage network is present on the lateral parts of the tread in the image of what is shown in FIG. 3 to evolve with the wear and to be located on the middle part in the image of what is shown in FIG. 1. In such a case, in the new state, the first axial portion is formed on at least one of the axially further away from the median plane of the tread when new while the second axial part is formed on the middle part of the tread. (0065) Advantageously, the level of partial wear from which the change of network takes place is between 10% and 85% of the thickness of the strip to be used and even more advantageously between 30% and 65%. (0066) What has been shown and described with two wear levels, namely a first level between the running surface in new condition and the bottom of the groove portions 10 opening on said running surface and a second level seeing new parts of groove appear, can of course be easily generalized to the presence of more than two levels. (0067) The invention is not limited to the examples described and various modifications can be made without departing from the scope as defined by the claims.
    [0004] In particular, the internal cavities or closed portions of different undulating grooves may be located at different levels in the thickness of a strip.
    权利要求:
    Claims (6)
    [0001]
    CLAIMS 1- Tread (10) for a heavy vehicle tire width W, this tread having in its new state a tread surface (100) intended to come into contact with a roadway, this tread comprising: on at least a first axial portion (M) of the strip at least one undulating groove (2, 4) in the thickness of the strip and continuous in a first direction and a plurality of undulating grooves (6, 7) in the the thickness of the web and continuous in a second direction, each of said continuous undulating grooves 10 including a plurality of open portions (21, 41, 61, 71) on the tread surface (100) in new condition and a plurality of closed parts (22, 42, 62, 72) underlying the running surface (100), the closed parts being connected to the open parts and arranged alternately, each closed part being spaced from the running surface in the state nine by a bridge of gum, the grooves the undulating grooves (6, 7) in the second direction being connected to at least one undulating groove (2, 4) in the first direction, - on at least one second axial part (B) of the band at least one undulating groove ( 1, 5) in the thickness of the strip and continues in a third direction and a plurality of undulating grooves (6, 7) in the thickness of the strip and continuous in a fourth direction, each undulating groove comprising a plurality of open portions on the running surface (100) in new condition and a plurality of closed parts, the closed portions being connected to the open portions, these open and closed portions being alternately arranged, each closed portion being spaced from the surface of the rolling by a rubber bridge, the undulating grooves (6, 25 7) of this second axial portion (B) of bands oriented in the fourth direction being connected to at least one undulating groove (1, 5) according to the third direction, this tread (10) being characterized in that: - in the new state, the open parts on the rolling surface of the first axial portion (M) are connected to each other to form a network of continuous surface ---- 15 - and in that the parts open on the running surface of the second axial portion (B) are disjoint from each other, - and that from a partial wear open parts on a new running surface (100 ') of the second axial portion (B) are connected to each other to form a continuous surface network and in that the open portions on the new running surface (100') of the first axial portion (M) are disjoint from each other.
    [0002]
    2- Tread (10) according to claim 1 characterized in that the first axial portion (M) is formed on the middle portion of the tread in new condition and in that the second axial portion corresponds to parts of the tread located on either side of the median part.
    [0003]
    3 - Tread (10) according to claim 2 characterized in that the width 15 of the middle portion (M) is between 15% and 85% of the width W of the tread, and even more advantageously between 30 % and 65%.
    [0004]
    4 - Tread (10) according to claim 1 characterized in that in the new state the first axial portion is formed on at least one of the axially most remote parts of the median plane of the tread. the new state and in that the second axial part is formed on the middle part of the tread.
    [0005]
    5 - Tread according to any one of claims 1 to 3 characterized in that the side portions (B) comprise a plurality of incisions of the same orientation 25 as the oblique undulating grooves (6, 7), this orientation being at less than 10 degrees.
    [0006]
    A tire with a tread according to any one of claims 1 to 5, which tire is characterized in that the average length of the open portions of the circumferential undulating grooves on the running surface in new condition is Between 25% and 75% of the average length T of the tire contact surface obtained under the conditions of use of the tire.
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    同族专利:
    公开号 | 公开日
    FR3014022B1|2016-07-08|
    EP3077223B1|2017-09-13|
    CN105793068A|2016-07-20|
    US10377183B2|2019-08-13|
    CN105793068B|2017-12-08|
    US20160297252A1|2016-10-13|
    EP3077223A1|2016-10-12|
    WO2015082310A1|2015-06-11|
    引用文献:
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    法律状态:
    2015-12-21| PLFP| Fee payment|Year of fee payment: 3 |
    2016-12-22| PLFP| Fee payment|Year of fee payment: 4 |
    2017-12-21| PLFP| Fee payment|Year of fee payment: 5 |
    2019-09-27| ST| Notification of lapse|Effective date: 20190906 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1361934A|FR3014022B1|2013-12-02|2013-12-02|ADVANCED TIRE ROLLER FOR TIRES|FR1361934A| FR3014022B1|2013-12-02|2013-12-02|ADVANCED TIRE ROLLER FOR TIRES|
    PCT/EP2014/075838| WO2015082310A1|2013-12-02|2014-11-27|Evolving tread for a tyre|
    CN201480065867.3A| CN105793068B|2013-12-02|2014-11-27|The tire tread of differentiation|
    EP14802922.6A| EP3077223B1|2013-12-02|2014-11-27|Evolving tire tread|
    US15/100,839| US10377183B2|2013-12-02|2014-11-27|Evolving tread for a tire|
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