WO2023134821A1 - Pneu de véhicule - Google Patents

Pneu de véhicule Download PDF

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Publication number
WO2023134821A1
WO2023134821A1 PCT/DE2022/200301 DE2022200301W WO2023134821A1 WO 2023134821 A1 WO2023134821 A1 WO 2023134821A1 DE 2022200301 W DE2022200301 W DE 2022200301W WO 2023134821 A1 WO2023134821 A1 WO 2023134821A1
Authority
WO
WIPO (PCT)
Prior art keywords
pneumatic vehicle
tire
carcass
reinforcements
vehicle tire
Prior art date
Application number
PCT/DE2022/200301
Other languages
German (de)
English (en)
Inventor
Christoph Berger
Owais Ahmed
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 WO2023134821A1 publication Critical patent/WO2023134821A1/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
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C9/07—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship the cords curve from bead to bead in plural planes, e.g. S-shaped cords
    • 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
    • B60C9/02—Carcasses
    • B60C9/17—Carcasses asymmetric to the midcircumferential plane 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
    • 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
    • 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
    • B60C9/2204—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 obtained by circumferentially narrow strip winding

Definitions

  • the invention relates to a pneumatic vehicle tire.
  • Pneumatic vehicle tires consist of a large number of tire components. These tire components include a tire carcass, the sidewalls, the tread, a tire belt and a variety of other components. All tire components have a special function for the vehicle tire, so that it has the appropriate stability and z. B. has a predetermined material strength. Furthermore, it is important that the pneumatic vehicle tire has the lowest possible weight so that the rolling resistance is low.
  • the object of the invention was to provide an improved pneumatic vehicle tire.
  • the pneumatic vehicle tire should have the lowest possible weight, while at the same time puncture safety is not impaired.
  • the pneumatic vehicle tire has a tire belt with a maximum of one belt ply
  • the tire carcass in the area of the side walls having at least one side carcass ply with reinforcements aligned in the radial direction and one in the area below the tread has a central carcass ply
  • the reinforcements of the central carcass ply are arranged at an angle in the range of 5° to 85° to the circumferential direction of the pneumatic vehicle tire
  • a reinforcement layer made of a large number of material strips with individual reinforcements is arranged at least over partial areas of the central carcass ply, the material strips being essentially parallel to the circumferential direction of the vehicle tire over the central carcass ply, whereby the area under the tread has a high puncture resistance.
  • the vehicle tire has a relatively low weight due to the new tire construction of the pneumatic vehicle tire and at the same time has a high level of puncture resistance.
  • the pneumatic vehicle tire has a high level of stability and material strength in the area of the tire carcass and below the tread.
  • the pneumatic vehicle tire has a relatively low weight since only one belt layer or no belt layer is provided below the tread strip.
  • a tire belt with a maximum of one belt ply means that the tire construction can optionally have no belt plies. Due to the new construction of the tire carcass with the central carcass layer and the side carcass layer, the tire carcass in connection with the reinforcement layer has a very high stability. In addition, the reinforcement layer ensures that sharp objects cannot penetrate through the tire carcass and damage the pneumatic vehicle tire. The synergy effects from the new carcass construction with the reinforcement layer result in a weight-reduced vehicle tire with high stability.
  • the tire belt comprises at least one belt ply. With the new tire construction, a maximum of one tire belt with one belt layer is arranged below the tread. In an advantageous development of the invention, it is provided that the reinforcements of the belt ply and the reinforcements of the central carcass ply are arranged crossed in the circumferential direction of the pneumatic vehicle tire.
  • the tire carcass By crossing the reinforcements, the tire carcass has a high level of stability below the tread.
  • the material density of the reinforcements of the reinforcement layer essentially corresponds to the material density of the reinforcements of the belt ply and/or the material density of the reinforcements of the tire carcass.
  • the pneumatic vehicle tire below the tread has a high puncture resistance.
  • the reinforcement layer is covered in the side areas with a second reinforcement layer.
  • the second reinforcement layer has the advantage that it stabilizes the shoulder areas of the pneumatic vehicle tire.
  • the reinforcement layer has individual interruptions in partial areas.
  • FIG. 1 A corresponding exemplary embodiment is shown in FIG.
  • the interruptions in the reinforcement layer lead to an advantageous weight reduction of the pneumatic vehicle tire.
  • the reinforcement layer is wound onto the tire carcass with individual strips of material during tire manufacture, with the reinforcement layer being applied with a pretension.
  • the stability of the tire carcass can be significantly improved by prestressing the reinforcement layer.
  • the material strips of the reinforcement layer are wound onto the tire carcass in an overlapping manner.
  • the reinforcements of the reinforcement layer consist of steel, polyamide, nylon, aramide, polyester and/or rayon.
  • the reinforcements of the reinforcement layer have a material diameter of between 0.1 and 2 mm.
  • the material strips of the reinforcement layer have a material width of between 5 and 15 mm.
  • the strips of material can be applied to the tire carcass with optimum pretension.
  • the reinforcements of the central carcass ply are at an angle in the range of 10° to 70°, preferably in the range of 15° to 55°, particularly preferably in the range of 20°, in relation to the circumferential direction of the pneumatic vehicle tire up to 35°.
  • the tire carcass comprises two or more side carcass plies and central carcass plies.
  • Two superimposed carcass plies increase the stability of the tire carcass.
  • Fig. 1 A tire construction in a radial sectional view
  • Fig. 2 Another embodiment
  • Fig. 4 A top view of the alignment of the reinforcement members of the tire carcass
  • FIG. 1 shows a first exemplary embodiment of the new tire construction.
  • the pneumatic vehicle tire 1 comprises a tire carcass 2 with a side carcass ply 3 and a central carcass ply 4.
  • the reinforcements in the central carcass ply 4 have no radial orientation.
  • the reinforcements in the side carcass ply 3, on the other hand, are in radial direction 10 aligned.
  • the reinforcements of the central carcass ply 4 are arranged at an angle of between 5 and 85° in the circumferential direction of the pneumatic vehicle tire 1 .
  • the alignment of the reinforcements can be seen in particular from FIG.
  • a tire inner layer 21 is arranged on the inside of the tire carcass 2 and ensures the airtightness of the pneumatic vehicle tire.
  • the pneumatic vehicle tire has two side walls 8 and two tire beads 9 .
  • a reinforcement ply 5 Arranged above the tire carcass 2 over the central carcass ply 4 is a reinforcement ply 5 composed of a multiplicity of individual strips of material.
  • the pneumatic vehicle tire does not include a tire belt or, at most, a tire belt with a single belt ply 6.
  • the belt ply 6 is located radially on the inside opposite the reinforcement ply.
  • the pneumatic vehicle tire includes a tread strip 7.
  • the reinforcement layer 5 extends into the tire shoulder of the pneumatic vehicle tire and at least covers the central carcass ply 4 completely.
  • FIG. 2 shows a further exemplary embodiment.
  • No tire belt is provided with this tire construction.
  • the tire carcass 2 comprises a side carcass ply 3 and a center carcass ply 4.
  • the side carcass ply 3 and the central carcass ply 4 differ in the orientation of the reinforcements, as has already been described for FIG.
  • the central carcass ply 4 is completely covered by the reinforcement ply 5 .
  • a second reinforcement layer is provided in the side areas of the lower reinforcement layer 5 .
  • the width of the second reinforcement ply 19 is approximately 25% of the width of the lower reinforcement ply 5.
  • the second reinforcement ply 19 stabilizes the pneumatic vehicle tire in the shoulder areas of the tire carcass.
  • FIG. 3 shows another embodiment of the tire construction.
  • the tire carcass 2 is constructed as described in FIG.
  • Above the central tire carcass 4 is a reinforcement layer 5 with Interruptions 20 arranged.
  • the interruptions in the reinforcement layer lead to a significant weight reduction of the pneumatic vehicle tire.
  • Figure 4 shows a schematic representation of the course of the reinforcement 12 of the tire carcass, the reinforcement 17 of the reinforcement layer and the reinforcement 18 of the optional belt layer. A partial section of a top view of the tire carcass shown schematically is shown.
  • the orientation of the reinforcements in the central carcass ply in the area under the tread is shown with brackets 13.
  • the circumferential direction of the pneumatic vehicle tire is indicated by the directional arrow 11 .
  • the reinforcement members 12 run in the area 14 and 15 of the side carcass plies in the radial direction and at an angle of approximately 90° with respect to the circumferential direction 11 .
  • the individual reinforcements 12 in the central carcass ply continue to run parallel to one another, but have an inclination with respect to the circumferential direction 11 .
  • the strength members in the central carcass ply form an angle of less than 90° with the circumferential direction.
  • an angle of approximately 52° is formed with the circumferential direction 11 .
  • a schematic material strip 16 of the reinforcement layer is also shown in the figure.
  • the strip of material 16 comprises a multiplicity of reinforcements 17 which are embedded in the rubber material of the strip of material 16 .
  • the reinforcement members 17 run essentially in the circumferential direction 11 of the pneumatic vehicle tire.
  • a plurality of strips of material 16 are wound onto the tire carcass above the center carcass ply.
  • the strips of material 16 of the reinforcement layer have a high puncture resistance to sharp objects.
  • the figure also shows the course of the reinforcements 18 of an optional belt layer.
  • the reinforcements 18 of the optional belt ply cross the reinforcements of the central carcass ply and the reinforcement ply.
  • the crossing of the reinforcement members 18 and the reinforcement members 12 of the tire carcass results in a high degree of stability of the tire carcass below the tread.

Landscapes

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

Abstract

L'invention concerne un pneu de véhicule amélioré, le pneu de véhicule (1) comprenant une ceinture de pneu avec une nappe de ceinture maximale (6) ou dépourvu de nappe de ceinture, la carcasse de pneu (2) ayant au moins une nappe de carcasse latérale (3) avec des câbles (12) orientés dans la direction radiale dans la région des parois latérales (9) et une nappe de carcasse centrale (4) dans la région sous la bande de roulement de pneu, les câbles (12) de la nappe de carcasse centrale (4) étant agencés à un angle dans la région situé dans la plage allant de 5 à 85° par rapport à la direction circonférentielle (11) du pneu de véhicule, où une nappe de renfort (5) constituée d'une pluralité de bandes de matériau (16) avec des cordons individuels (17) sont organisés au moins sur des sous-régeions de la nappe de carcasse centrale (4), les bandes de matériau (16) étant enroulées sur la nappe de carcasse centrale (4) sensiblement parallèle à la direction circonférentielle (11) du pneu de véhicule, la région sous la bande de roulement de pneu (7) ayant une résistance élevée à la crevaison.
PCT/DE2022/200301 2022-01-14 2022-12-15 Pneu de véhicule WO2023134821A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022200359.4A DE102022200359A1 (de) 2022-01-14 2022-01-14 Fahrzeugluftreifen
DE102022200359.4 2022-01-14

Publications (1)

Publication Number Publication Date
WO2023134821A1 true WO2023134821A1 (fr) 2023-07-20

Family

ID=84942939

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2022/200301 WO2023134821A1 (fr) 2022-01-14 2022-12-15 Pneu de véhicule

Country Status (2)

Country Link
DE (1) DE102022200359A1 (fr)
WO (1) WO2023134821A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2930425A (en) * 1954-12-06 1960-03-29 Pirelli Pneumatic tire
US3580318A (en) * 1967-11-30 1971-05-25 Continental Gummi Werke Ag Pneumatic vehicle tire
US4286645A (en) * 1973-06-12 1981-09-01 Compagnie Generale Des Etablissements Michelin Pneumatic tire with reinforced carcass and tread
JP2001246910A (ja) * 2000-03-06 2001-09-11 Bridgestone Corp 空気入りタイヤ
DE112017002411T5 (de) * 2016-05-12 2019-01-24 The Yokohama Rubber Co., Ltd. Luftreifen
DE112017002418T5 (de) * 2016-05-12 2019-01-24 The Yokohama Rubber Co., Ltd. Luftreifen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2930425A (en) * 1954-12-06 1960-03-29 Pirelli Pneumatic tire
US3580318A (en) * 1967-11-30 1971-05-25 Continental Gummi Werke Ag Pneumatic vehicle tire
US4286645A (en) * 1973-06-12 1981-09-01 Compagnie Generale Des Etablissements Michelin Pneumatic tire with reinforced carcass and tread
JP2001246910A (ja) * 2000-03-06 2001-09-11 Bridgestone Corp 空気入りタイヤ
DE112017002411T5 (de) * 2016-05-12 2019-01-24 The Yokohama Rubber Co., Ltd. Luftreifen
DE112017002418T5 (de) * 2016-05-12 2019-01-24 The Yokohama Rubber Co., Ltd. Luftreifen

Also Published As

Publication number Publication date
DE102022200359A1 (de) 2023-07-20

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