WO2011082845A1 - Pneumatique de véhicule - Google Patents

Pneumatique de véhicule Download PDF

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Publication number
WO2011082845A1
WO2011082845A1 PCT/EP2010/065379 EP2010065379W WO2011082845A1 WO 2011082845 A1 WO2011082845 A1 WO 2011082845A1 EP 2010065379 W EP2010065379 W EP 2010065379W WO 2011082845 A1 WO2011082845 A1 WO 2011082845A1
Authority
WO
WIPO (PCT)
Prior art keywords
belt
pneumatic vehicle
bandage
vehicle tire
reinforcements
Prior art date
Application number
PCT/EP2010/065379
Other languages
German (de)
English (en)
Inventor
Viktor BLÜMEL
Rafal Nojek
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
Priority to EP10768742A priority Critical patent/EP2521656A1/fr
Publication of WO2011082845A1 publication Critical patent/WO2011082845A1/fr

Links

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
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • 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
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/0009—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor comprising sidewall rubber inserts, e.g. crescent shaped inserts
    • 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
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B60C19/12—Puncture preventing arrangements
    • B60C19/122—Puncture preventing arrangements disposed inside of the inner liner
    • 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
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
    • B60C9/2009—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords comprising plies of different materials

Definitions

  • the invention relates to a pneumatic vehicle tire having two or more belt layers which have an intersecting strength element at an angle and a belt bandage having single or multi-layer reinforcing elements.
  • Radial pneumatic tires have u.a. a belt and often a belt bandage on.
  • the belt consisting of two or more belt layers crossing at an angle provides the rigidity of the tread in the longitudinal and transverse directions. This is used when driving the power transmission, improves the side guide and reduces the abrasion of the tire.
  • Belt bandage essentially serves to additionally absorb forces in the circumferential direction, for example to limit the tire growth due to centrifugal forces during operation of the tire.
  • the belt bandage may cover the belt, or else the belt bandage as a whole or individual bandage layers may be located between or under the belt plies.
  • Belt layers installed in passenger car tires often have steel cords of construction 2 x 0.30 mm.
  • the cord construction 2 x 0.30 mm means that two wires of 0.30 mm diameter twisted together to form a cord are so that the cord has a diameter of about 0.60 mm.
  • Such a belt layer is constructed so that it has a tension greater than 17,500 N per dm width at a predetermined elongation of 1%.
  • a disadvantage of steel cords as strength carrier of the belt layer is that steel is susceptible to corrosion when the tread is pierced to a belt layer and moisture penetrates.
  • the adhesive system between steel and rubber is complex and expensive, among other things because the steel cords must be embedded in brass for better adhesion.
  • Belt bandages installed in passenger car tires often have one or two layers of 940x2 rubberized nylon cords at 80 epdm.
  • Such a belt bandage is constructed such that it builds up a force of less than or equal to about 1500 N per dm width at a predetermined elongation of 1% in the direction of Kordlijnserstreckung.
  • Nylon is often used because this material has heat shrinkage, that is, it shrinks when heated. This is advantageous both in the vulcanization of the tire as well as the high-speed operation, because the belt bandage then promotes the cohesion of the belt package. In addition, this prevents, however, that the belt bandage when operating device in compression, which is detrimental to their durability fatigue resistance and fractures of the
  • non-steel materials such as rayon, glass or aramid as
  • Insert reinforcement of the belt layer have a better and simpler bonding system to rubber than steel to rubber. However, these materials have a lower modulus than steel, so that less tension can be built up in conventional constructions at a given elongation and therefore disadvantages in the performance of the tire have occurred.
  • the tire has undesirably "grown" under operating air pressure and has an unfavorable performance
  • the object is achieved by the strengthening of at least one belt layer of a non-metallic material, which within the belt layer in
  • each belt ply at a given elongation of 1% in the direction of the reinforcing member longitudinal extension has a tension ⁇ 17,500 N by dm width, wherein the reinforcing elements of the belt layers an angle of 18 ° to 45 ° with the
  • the reinforcing elements of the belt bandage are made of a non-metallic material and have a heat shrinkage and wherein the belt bandage at a predetermined elongation of 1% has a total tension> 2,000 N dm width.
  • non-metallic reinforcing elements are used in the belt layers, whose reduced modulus is compensated by the comparatively high force build-up when the belt bandage is stretched. It is achieved a high performance, since in the operation of the tire a suitable dynamic ground contact patch is obtained. A complex adhesive system, as required for steel cords, is not necessary.
  • the non-metallic reinforcing member of the belt ply does not tend to corrode when punctured, thereby improving the durability of the pneumatic vehicle tire.
  • the dielectric strength of the belt layer is higher than in belt layers with steel reinforcements comparable reduced power structure at a given elongation, which also improves the durability of the pneumatic vehicle tire.
  • the use of non-metallic reinforcements in the belt layers also advantageously reduces the weight of the pneumatic vehicle tire.
  • the reinforcements of the belt layers can be made of polyester, rayon, lyocell, PVA, PEN, POK, Vectran, aramid, glass fiber or natural fibers such as sisal, flax, hemp, jute, cotton or ramie.
  • the strength member cords of rayon or lyocell ® Preferably, the strength member cords of rayon or lyocell ®.
  • the reinforcements of the belt bandage are preferably materials from the classes polyester or nylon. It is also possible to use hybrid constructions made of rayon, lyocell, PVA, PEN, POK, Vectran or aramid with polyester or nylon. It is essential that at least one material of the reinforcement
  • the belt bandage may be spooled and have a patchy winding pattern such that the effective cord density is reduced.
  • the tire according to the invention is reduced in weight, the use in comparatively heavy run-flat tires, such as in an SSR tire or a tire with a self-adhesive viscous sealing layer arranged radially inwardly of the tire inner layer, is suitable.
  • SSR tires are tires with reinforcing profiles in the
  • Tires with a sealing layer which is located between the shoulders under the tread on the inner tire layer, are characterized in that when a foreign body, the tread of the pneumatic vehicle tire penetrated, this is enclosed by the sealing layer and a possible
  • Air loss is prevented by quasi-immediate sealing.
  • a preferred example of a construction according to the invention of a tire car tire of the tire dimension 225/45 R 17 has a 2-ply belt of rayon cords of
  • Each belt layer has a predetermined elongation of 1% in
  • a tension of about 3,500 N per dm width and the belt bandage has a predetermined strain of 1%, a tension of about 2,000 N per dm width.
  • a suitable dynamic ground contact patch is obtained.
  • the pneumatic vehicle tire according to the invention may be a passenger car, van, or a light truck pneumatic tire.
  • a vehicle pneumatic tire according to the invention in its most general form has two or more belt layers crossing at an angle and having a strength carrier with one or more layers, wherein the reinforcements of the belt layers and the belt bandage are arranged substantially parallel and spaced from one another embedded in rubber material, and wherein each belt ply at a given elongation of 1% in the direction of
  • Reinforcement longitudinal extent has a tension ⁇ 17,500 N by dm width, and wherein the reinforcing elements of the belt layers include an angle of 18 ° to 45 ° with the circumferential direction of the tire, and wherein the strength of the carrier
  • Belt bandage are arranged within the reinforcement layer approximately in the tire circumferential direction and are made of a material which has a heat shrink, and wherein the belt bandage has a total tension of> 2,000 N per dm width for a given elongation of 1%.
  • the features of claims 1-10 may be advantageous embodiments of the subject matter of claim 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

L'invention concerne un pneumatique de véhicule comportant au moins deux couches de ceinture se croisant à un angle donné, et un bandage de ceinture. Les renforts d'au moins une couche de ceinture sont en matériau non métallique, de préférence en rayonne, et chaque couche de ceinture présente, pour une extension prédéfinie de 1 %, une tension < 17500 N par dm de largeur, les renforts des couches de ceinture formant un angle de 18° à 45° avec la direction périphérique du pneumatique. Les renforts du bandage de ceinture sont réalisés en matériau non métallique, de préférence en polyester, en nylon ou en corde hybride et le bandage de ceinture présente au total, pour une extension prédéfinie de 1 %, une tension > 2000 N par dm de largeur.
PCT/EP2010/065379 2010-01-07 2010-10-14 Pneumatique de véhicule WO2011082845A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10768742A EP2521656A1 (fr) 2010-01-07 2010-10-14 Pneumatique de véhicule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010000013.2 2010-01-07
DE201010000013 DE102010000013A1 (de) 2010-01-07 2010-01-07 Fahrzeugluftreifen

Publications (1)

Publication Number Publication Date
WO2011082845A1 true WO2011082845A1 (fr) 2011-07-14

Family

ID=43065693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/065379 WO2011082845A1 (fr) 2010-01-07 2010-10-14 Pneumatique de véhicule

Country Status (3)

Country Link
EP (1) EP2521656A1 (fr)
DE (1) DE102010000013A1 (fr)
WO (1) WO2011082845A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012175305A1 (fr) * 2011-06-23 2012-12-27 Continental Reifen Deutschland Gmbh Pneumatique pour aéronef
WO2019141424A1 (fr) * 2018-01-16 2019-07-25 Continental Reifen Deutschland Gmbh Nappe de renforcement pour des objets composés d'un matériau élastomère et pneumatique de véhicule

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908329A2 (fr) * 1997-10-06 1999-04-14 PIRELLI PNEUMATICI Società per Azioni Tissu de renfort pour article caoutcouté et article correspondant comprenant un tel tissu
US6082423A (en) * 1997-06-09 2000-07-04 The Goodyear Tire & Rubber Company Low cost light weight radial tire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6082423A (en) * 1997-06-09 2000-07-04 The Goodyear Tire & Rubber Company Low cost light weight radial tire
EP0908329A2 (fr) * 1997-10-06 1999-04-14 PIRELLI PNEUMATICI Società per Azioni Tissu de renfort pour article caoutcouté et article correspondant comprenant un tel tissu

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012175305A1 (fr) * 2011-06-23 2012-12-27 Continental Reifen Deutschland Gmbh Pneumatique pour aéronef
WO2019141424A1 (fr) * 2018-01-16 2019-07-25 Continental Reifen Deutschland Gmbh Nappe de renforcement pour des objets composés d'un matériau élastomère et pneumatique de véhicule
RU2741993C1 (ru) * 2018-01-16 2021-02-01 Континенталь Райфен Дойчланд Гмбх Армирующий слой для изделий из эластомерного материала и пневматические шины транспортного средства

Also Published As

Publication number Publication date
EP2521656A1 (fr) 2012-11-14
DE102010000013A1 (de) 2011-07-14

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