WO2014183890A1 - Pneumatique de véhicule comprenant un système de cavités à l'intérieur de la bande de roulement et procédé de fabrication dudit pneumatique - Google Patents

Pneumatique de véhicule comprenant un système de cavités à l'intérieur de la bande de roulement et procédé de fabrication dudit pneumatique Download PDF

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Publication number
WO2014183890A1
WO2014183890A1 PCT/EP2014/053898 EP2014053898W WO2014183890A1 WO 2014183890 A1 WO2014183890 A1 WO 2014183890A1 EP 2014053898 W EP2014053898 W EP 2014053898W WO 2014183890 A1 WO2014183890 A1 WO 2014183890A1
Authority
WO
WIPO (PCT)
Prior art keywords
tread
enteil
radially inner
rubber layers
strip
Prior art date
Application number
PCT/EP2014/053898
Other languages
German (de)
English (en)
Inventor
Jens Hoffmann
Helge ROTHER
Joao Almeida
Original Assignee
Continental Reifen Deutschland Gmbh
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 Continental Reifen Deutschland Gmbh filed Critical Continental Reifen Deutschland Gmbh
Publication of WO2014183890A1 publication Critical patent/WO2014183890A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • B29D30/54—Retreading
    • B29D30/56—Retreading with prevulcanised tread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • 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
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • 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
    • B60C11/02—Replaceable treads
    • 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

Definitions

  • the invention relates to a pneumatic vehicle tire in radial design with a profiled tread, wherein in the tread interior, a cavity system is present, which comes to a certain tread wear on the profile outer surface as negative volumes of a further profiling.
  • the invention further relates to a method for producing a pneumatic vehicle tire. From US 8,277,589 B2 is a tread for retreading a
  • Profile negatives such as grooves, cuts and the like is provided. With increasing abrasion of the tread the introduced at the back of the tread profile negatives get to the tread outside and provide for a certain
  • Tread wear provides additional profile negatives and associated profile positives that are important, for example, for tread traction. From the US
  • 6,591,881 B2 it is known to provide in the tread of a pneumatic vehicle tire radially within an outer profiling cavities available that form a second profiling after a certain tread abrasion.
  • the cavities are filled with fillers, which must be removed by means of pull tabs. How to make such a tire remains unclear.
  • the invention is based on the object to provide a tire of the type mentioned and a method for its production, in which a in the
  • the object is achieved according to the invention in that the tread of a radially outer tread part and a radially inner tread part
  • the radially inner tread part in the radial direction of at least two precured rubber layers is composed, which between them include the hollow chamber system, which forms a further profiling.
  • the object is achieved according to the invention in that the tread is formed from a radially inner and a radially outer tread portion, wherein the radially inner tread portion is composed of at least two rubber layers, which are vulcanized, at least in one of the rubber layers one of its sides in the Vorvulkanisation a profiling of grooves, incisions or the like is introduced, and wherein the pre-vulcanized rubber layers are joined together such that the introduced profiling forms the hollow chamber system.
  • the multilayer structure of the tread of a radially outer tread portion and a radially inner tread portion consisting of at least two pre-vulcanized rubber layers allows a particularly variable embodiment of the cavity system, which emerges after a corresponding abrasion of the tread as a second profiling.
  • pre-vulcanization it is possible to introduce into one or more rubber layer (s) a profiling, which is retained in the vulcanization of the finished tire in a vulcanization mold as a hollow chamber system.
  • the radially inner and the radially outer tread part have at least substantially equal thicknesses. This measure makes it possible to provide a "hidden" profiling in the radially inner tread part, whose tread depth corresponds at least essentially to the tread depth of the tread in the outer tread part Alternatively, it is possible to use the two
  • Running strip ener perform in different thicknesses, which also be provided can that the radially outer run streif enteil has a smaller thickness than the radially inner tread part.
  • the radially outer running strip enteil is made thicker or thinner at its edge regions than in its central region, wherein the radially inner run enteil enteil with respect to its thickness course is carried out according to the same.
  • running stripes can be specifically influenced on tread properties, such as the stiffness, in the middle area of the tread and in the edge areas of the tread strip.
  • tread properties such as the stiffness
  • the middle of the strip asymmetrical
  • the inner race strip enteil can be composed according to the invention of more than two pre-vulcanized rubber layers, wherein in the or one of the middle
  • Rubber layer (s) the parts of the hollow chamber system as a continuous
  • Recesses are formed.
  • the individual rubber layers can be made of different rubber compounds to so specific
  • Running strip is stamped enteil.
  • running treads can also be used in the context of cold rolling renewal, in which case the radially outer run streif enteil is prepared as vorvulkaninstrumenter and provided with a tread profiling component which is assembled with the pre-vulcanized rubber layers of the inner tread part.
  • the radially inner race strip enteil can be composed in particular of up to six pre-vulcanized rubber layers, especially in tires for trucks. With a larger number of rubber layers, it is possible to profile the pre-vulcanized rubber layers such that they can be joined enteil to a radially inner run, for example, two spaced in the radial direction hollow chamber systems and therefore also two, preferably different,
  • FIG. 1 shows a cross section through a barrel strip area of a pneumatic vehicle tire
  • Fig. 2 shows the detail D of FIG. 1 in an enlarged view
  • Fig. 3 shows another embodiment of the invention, also with reference to a
  • the invention is concerned with a particular embodiment of the tread of a pneumatic vehicle tire, in particular a pneumatic vehicle tire for heavy vehicles, buses or the like in a radial type, as well as a method for producing the
  • Tread or the pneumatic vehicle tire with such a tread is not limited to tires for heavy duty vehicles, buses or the like and can also be applied to passenger car pneumatic tires.
  • Treads of pneumatic vehicle tires are usually profiled.
  • a barrel strip profile is made up of profile positives, these are tread blocks, tread bands and the like, which are those areas of the tread that directly contact the ground as the tire rolls off.
  • a tread pattern also has
  • Profile negatives such as grooves, such as circumferential grooves, transverse grooves or diagonal grooves, and cuts on, the latter are according to the prior art narrow, up to 1.5 mm or 2 mm wide grooves, which usually run within profile positive.
  • Circumferential grooves, transverse grooves and diagonally extending over the tread grooves usually separate the profile positives from each other and have the main purpose for a
  • the circumferential grooves in treads are usually performed on the maximum provided tread depth. Predominantly these grooves therefore influence the circumferential and transverse stiffness of the profile positive, whereby in particular the abrasion behavior, the handling behavior and the
  • the profile negatives are pressed in the vulcanization of the pneumatic vehicle tire in a multi-part vulcanization mold over the profile forming molding segments or moldings, which are provided with the corresponding projections, lamellar plates and the like, outside in the tread of the green tire.
  • a manufactured according to the invention and built tread is composed of a radially outer run streif enteil 1 and a radially inner run streak enteil 2 together.
  • the two tread parts 1 and 2 extend over the entire circumference of the tire and extend beyond the usual width of conventional treads. Together, the two tread parts 1 and 2 give a custom for the particular tire tread and therefore also have a thickness which corresponds to that of the usual tread. In truck tires, the tread thickness in the middle run strip area in the
  • the radially outer tread part 1 is produced in the production of the raw tire from an unvulcanized rubber compound and therefore without profiling, for example by extrusion.
  • the radially inner tread part 2 is composed in the embodiment shown in Fig. 1 of two pre-vulcanized rubber layers 3 and 4, as will be explained in more detail.
  • the radially outer tread part 1 receives its profiling in a conventional manner on the mold lands in the vulcanization mold. After the radially outer tread part 1 is thinner than a conventional complete
  • the profile negatives are performed in the radially outer tread part 1 in a correspondingly smaller depth.
  • the profile negatives may in particular extend to the interface of the radially outer pre-vulcanized rubber layer 3.
  • some circumferential grooves 5 are shown in Fig. 1.
  • the profiling in the radially outer tread part 1 may be arbitrary, for example, in addition to circumferential grooves also include transverse grooves or diagonal grooves and the like.
  • a pre-vulcanization with respect to the design or the "pattern" matching profile has been introduced, such that the two rubber layers 3 and 4, when assembled at their profiled sides, together
  • Fig.l shows, for example, two partial grooves 6a and 6b in the two rubber layers 3, 4 after a certain run strip abrasion, as soon as the tread profile top facing "bottom" of the part of the groove 6a is reached, a
  • Circumferential groove By a corresponding design and arrangement of partial grooves 6a, 6b and the like in the two rubber layers 3 and 4, a "hidden" profile is formed in the tread, which comes to light from a certain tread wear
  • Profiling in the radially outer tread part 1 match or be performed by this entirely different. Between the bottoms of the formed part grooves 6a, 6b and the like and the outer, non-profiled outer surfaces of the rubber layers 3 and 4 should rubber material of a certain thickness, in particular from 1 mm to 2 mm, remain.
  • the pre-vulcanized rubber layers 3 and 4 can be matching or
  • Embodiment may be one of the precured rubber layers 3 or 4
  • the second pre-vulcanized rubber layer is executed in a low thickness without profiling and serves only to cover the other pre-vulcanized rubber layer.
  • Fig. 3 shows a further embodiment of the invention with a radially outer
  • Running strip enteil is already made in the unvulcanized state such that it is gradually thicker starting from its edges toward the center, wherein at least one of the rubber layers 3 ', 4' is made such that its thickness, starting from the edges to the center continuously lower is so that in composite tread parts, 2 'a complete tread of the desired thickness or the desired thickness profile is formed.
  • the radially outer run strip enteil can now in the area of the running strip center profile negatives, such as circumferential grooves 5, are introduced, which have a greater depth than those near the running strip edge areas.
  • "hidden" profile negatives 7 may be formed which have a smaller radial extent in the region of the tread center than those in the edge regions like in both
  • Rubber layers 3 ', 4' form or only in one of the rubber layers 3 ', 4'.
  • the radially outer run streif enteil 1, 1 ' consists of a pre-vulcanized or vulcanized and already provided with a profiling rubber layer.
  • the radially inner tread part 2, 2 ' from more than two pre-vulcanized rubber layers.
  • the radially inner tread part 2, 2 ' for example, a uniform hollow chamber system in three or four successively positioned pre-vulcanized rubber layers, which correspond with
  • Tread part 2, 2 ' to build up to six pre-vulcanized rubber layers.
  • precured rubber layers one above the other two different "profilings" which come to light one after the other during the abrasion of the tread 3 ', 4' on the belt bandage or a thin, applied to the belt bandage

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

L'invention concerne un pneumatique de véhicule de type radial comprenant une bande de roulement profilée. A l'intérieur de la bande de roulement se trouve un système de cavités qui se présente sous la forme d'un volume négatif d'un autre profilage après une abrasion déterminée de la bande de roulement sur la surface extérieure profilée. La bande de roulement est composée d'une partie radialement extérieure (1, 1') de bande de roulement et d'une partie radialement intérieure (2, 2') de bande de roulement, la partie radialement intérieure (2, 2') de bande de roulement étant composée en direction radiale d'au moins deux couches de caoutchouc vulcanisé (3, 4, 3', 4') qui définissent entre elles le système de cavités qui forme un autre profilage. L'invention concerne également un procédé de fabrication d'un pneumatique de véhicule de ce type.
PCT/EP2014/053898 2013-05-17 2014-02-28 Pneumatique de véhicule comprenant un système de cavités à l'intérieur de la bande de roulement et procédé de fabrication dudit pneumatique WO2014183890A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310105138 DE102013105138A1 (de) 2013-05-17 2013-05-17 Fahrzeugluftreifen
DE102013105138.3 2013-05-17

Publications (1)

Publication Number Publication Date
WO2014183890A1 true WO2014183890A1 (fr) 2014-11-20

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PCT/EP2014/053898 WO2014183890A1 (fr) 2013-05-17 2014-02-28 Pneumatique de véhicule comprenant un système de cavités à l'intérieur de la bande de roulement et procédé de fabrication dudit pneumatique

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DE (1) DE102013105138A1 (fr)
WO (1) WO2014183890A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3397468A4 (fr) * 2015-12-29 2019-06-26 Bridgestone Americas Tire Operations, LLC Pneu à bande de roulement profilée
US11052706B2 (en) 2015-12-29 2021-07-06 Bridgestone Americas Tire Operations, Llc Composite layer tire
US11186053B2 (en) 2015-12-29 2021-11-30 Bridgestone Americas Tire Operations, Llc Tire with variable shear element
FR3114271A1 (fr) * 2020-09-23 2022-03-25 Compagnie Generale Des Etablissements Michelin Pneumatique pour véhicule lourd de génie civil à adhérence améliorée

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR742981A (fr) * 1933-03-21
US4239075A (en) * 1977-07-14 1980-12-16 Hedlund John A Profiled tire tread
JPH02246809A (ja) * 1989-03-20 1990-10-02 Bridgestone Corp 制動性に優れた空気入りタイヤ
WO2008066527A1 (fr) * 2006-11-29 2008-06-05 Societe De Technologie Michelin Moule muni d'éléments pour un côté de semelle d'une bande de roulement et procédé d'utilisation du moule et de la bande roulement
JP2010052453A (ja) * 2008-08-26 2010-03-11 Bridgestone Corp プレキュアトレッドおよびこれを用いた更生タイヤ
WO2010030276A1 (fr) * 2008-09-11 2010-03-18 Michelin Recherche Et Technique S.A. Bande de roulement de pneu à surface variable et pneu
WO2011048516A1 (fr) * 2009-10-21 2011-04-28 Ertugrul Yilmaz Pneu de véhicule
WO2012057742A1 (fr) * 2010-10-27 2012-05-03 Michelin Recherche Et Technique, S.A. Bande de roulement de pneu ayant des lamelles et procédé de fabrication d'une bande de roulement de pneu ayant des lamelles
WO2013066310A1 (fr) * 2011-10-31 2013-05-10 Michelin Recherche Et Technique S.A. Parties de bande de roulement amovibles en creux pour pneus rechapés

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6591881B2 (en) 2001-08-20 2003-07-15 Jerry Artrip Automobile tire with removable tread fillers and tread cavities beneath the rolling surface

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR742981A (fr) * 1933-03-21
US4239075A (en) * 1977-07-14 1980-12-16 Hedlund John A Profiled tire tread
JPH02246809A (ja) * 1989-03-20 1990-10-02 Bridgestone Corp 制動性に優れた空気入りタイヤ
WO2008066527A1 (fr) * 2006-11-29 2008-06-05 Societe De Technologie Michelin Moule muni d'éléments pour un côté de semelle d'une bande de roulement et procédé d'utilisation du moule et de la bande roulement
JP2010052453A (ja) * 2008-08-26 2010-03-11 Bridgestone Corp プレキュアトレッドおよびこれを用いた更生タイヤ
WO2010030276A1 (fr) * 2008-09-11 2010-03-18 Michelin Recherche Et Technique S.A. Bande de roulement de pneu à surface variable et pneu
WO2011048516A1 (fr) * 2009-10-21 2011-04-28 Ertugrul Yilmaz Pneu de véhicule
WO2012057742A1 (fr) * 2010-10-27 2012-05-03 Michelin Recherche Et Technique, S.A. Bande de roulement de pneu ayant des lamelles et procédé de fabrication d'une bande de roulement de pneu ayant des lamelles
WO2013066310A1 (fr) * 2011-10-31 2013-05-10 Michelin Recherche Et Technique S.A. Parties de bande de roulement amovibles en creux pour pneus rechapés

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3397468A4 (fr) * 2015-12-29 2019-06-26 Bridgestone Americas Tire Operations, LLC Pneu à bande de roulement profilée
US11052706B2 (en) 2015-12-29 2021-07-06 Bridgestone Americas Tire Operations, Llc Composite layer tire
EP3858589A1 (fr) * 2015-12-29 2021-08-04 Bridgestone Americas Tire Operations, LLC Pneu avec bande de roulement façonnée
US11155050B2 (en) 2015-12-29 2021-10-26 Bridgestone Americas Tire Operations, Llc Tire with shaped tread
US11186053B2 (en) 2015-12-29 2021-11-30 Bridgestone Americas Tire Operations, Llc Tire with variable shear element
US11904561B2 (en) 2015-12-29 2024-02-20 Bridgestone Americas Tire Operations, Llc Tire with shaped tread
US11958260B2 (en) 2015-12-29 2024-04-16 Bridgestone Americas Tire Operations, Llc Tire with variable shear element
FR3114271A1 (fr) * 2020-09-23 2022-03-25 Compagnie Generale Des Etablissements Michelin Pneumatique pour véhicule lourd de génie civil à adhérence améliorée
WO2022064134A1 (fr) * 2020-09-23 2022-03-31 Compagnie Generale Des Etablissements Michelin Pneumatique pour vehicule lourd de genie civil a adherence amelioree

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