WO2015051931A1 - Pneumatique de véhicule - Google Patents

Pneumatique de véhicule Download PDF

Info

Publication number
WO2015051931A1
WO2015051931A1 PCT/EP2014/065683 EP2014065683W WO2015051931A1 WO 2015051931 A1 WO2015051931 A1 WO 2015051931A1 EP 2014065683 W EP2014065683 W EP 2014065683W WO 2015051931 A1 WO2015051931 A1 WO 2015051931A1
Authority
WO
WIPO (PCT)
Prior art keywords
bead
carcass
core
section
cores
Prior art date
Application number
PCT/EP2014/065683
Other languages
German (de)
English (en)
Inventor
Patrick MOLDENHAUER
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 WO2015051931A1 publication Critical patent/WO2015051931A1/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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/04—Bead cores
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
    • B60C15/0054—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with ply turn-up portion parallel and adjacent to carcass main portion
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
    • B60C2015/009—Height of the carcass terminal portion defined in terms of a numerical value or ratio in proportion to section height
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C2015/0614—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the chafer or clinch portion, i.e. the part of the bead contacting the rim
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C2015/0617—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a cushion rubber other than the chafer or clinch rubber
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
    • B60C2015/0639—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer between carcass main portion and bead filler not wrapped around the bead core
    • 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
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
    • B60C2015/065—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer at the axially outer side of the carcass turn-up portion not wrapped around the bead core

Definitions

  • the invention relates to a pneumatic vehicle tire with two bead areas, which
  • edged cores as bead cores, as well as with at least one carcass ply, which extends over the entire tire cross section from the first to the second bead region and extends axially inward to axially outward around the edged cores and is designed as a carcass turn, the end of the carcass blast in a Radial height is arranged, which is outside the radial extent of the edged core.
  • Such a pneumatic vehicle tire which is improved in its rolling resistance, has become known for example from DE 10 2011 051 829 AI.
  • the efforts are going to continue to improve the rolling resistance of the vehicle tire.
  • the invention has for its object to provide a vehicle pneumatic tire having an improved rolling resistance with the same or improved lateral stiffness.
  • the object is achieved by waiving a apex by the end of the carcass rash is within a radial height (h) of 2 mm to 25 mm, measured from the radially outer edge of the edge in the direction radially outward, and arranged in that a bead amplifier is arranged, which starts at the height of the edged core and covers at least the end of the carcass blast.
  • the tire is durable by the provision of a bead enhancer and does not precipitate prematurely in this stressed region despite the low end of the carcass blast , Due to the high-edge core while dispensing with a corner rider and the low carcass rash material / volume in the bead of the tire is saved, the weight of the tire is reduced and improves the rolling resistance.
  • the bead booster in order to achieve a slender bead region as possible has steel monofilaments which are arranged at an angle of 20 ° to 60 ° to the tire circumferential direction.
  • the edgewise core to have a dimension a in its radial extent and a dimension b in its axial extent, where a> 3 ⁇ b.
  • a vertical core has the condition a> b.
  • Advantageous core constructions are, for example, 12 ⁇ 2 or 13 ⁇ 3, wherein in the example 12 ⁇ 2 two axially adjacent wires 12 ⁇ are arranged one above the other in the radial direction.
  • the condition a> 3 xb ensures that the edgewise core is able to transfer a proportion of the lateral rigidity.
  • Rubber strip between the carcass ply and the carcass turn-up is arranged. This ensures that the highly stressed components are additionally mechanically decoupled from each other in the bead area, whereby the durability of the tire is improved.
  • Rubber compound and in the side wall a softer rubber compound are arranged, wherein both rubber mixtures are arranged radially adjacent to each other and a
  • this boundary line - viewed in the tire cross-section - is approximately a straight line, which is arranged above the edgewise core but within the height of the carcass rash in the interior of the bead region from axially inside to axially outward to the surface of the side wall rising. means removing from the bead area.
  • the vehicle tire is a passenger car pneumatic tire.
  • Fig. 1 a cross section through the bead region of a fiction, contemporary
  • Fig. 2 a cross section through the bead region of another
  • Fig. 3 shows a cross section through the bead region of yet another
  • Fig. 4 shows a cross section through the bead area of another turn
  • FIG. 5 shows a cross section through the bead region of a turn another vehicle tire according to the invention.
  • Fig.l is a cross section through the bead region 1 of a fiction, contemporary
  • Construction 12x2 arranged, which is looped by a carcass ply 3 from axially inside to axially outside and is designed as a carcass turn-up 3a. A core rider is not arranged. Axially inside the inner layer 7 is arranged. The end 4 of the
  • Carcass rash is disposed at a radial height which is outside the radial extent of the edged core 2 and that within a radial height range (h) of 2 mm to 25 mm, measured from the radially outer edge edge 5 in the radially outward direction.
  • a radial height range (h) of 2 mm to 25 mm measured from the radially outer edge edge 5 in the radially outward direction.
  • axially outside the carcass blast 3a is axially outside the carcass blast 3a
  • Bead amplifier arranged 6 the lower end 8 begins at the level of the vertical core 2 and the upper end 9 is disposed above the end 4 of the carcass bluff, so that the bead amplifier 6 covers the end 4 of the carcass blast.
  • Rubber compound and in the side wall 11 a softer rubber compound is arranged. Both rubber compounds are arranged radially adjacent to each other and separated by a straight, extending in the radial direction boundary line 12.
  • Fig. 2 shows a cross section through the bead region 1 of another
  • the bead area 1 of FIG. 2 differs from the bead area 1 of FIG. 1 in that between carcass ply 3 and 3 in FIG
  • Carcass turn-up 3a a rubber strip 13 is arranged, which begins axially inwardly from the vertical core 2 at the level of the vertical core 2 and extends with its upper end beyond the upper end 9 of the bead.
  • Fig. 3 shows a cross section through the bead region 1 of another
  • the bead region 1 of Figure 3 differs from the bead region 1 of FIG. 1 in that in FIG. 3 the boundary line 12 does not extend in the radial direction but transversely to the radial direction and, after axially outward rising away from the edgewise core.
  • Fig. 4 shows a cross section through the bead region 1 of another
  • vehicle tire according to the invention. 4 differs from the bead region 1 of FIG. 1 in that in FIG. 4 the bead amplifier 6 is arranged between the carcass ply 3 and carcass pucker 3a in such a way that the lower end 8 of the bead enhancer is axially outward of the carcass ply 3 Hochkantkern 2 between the vertical core 2 and Karkassrochschlag 3a and then between carcass ply 3 and
  • Fig. 5 shows a cross section through the bead region 1 of another
  • the bead region 1 of Figure 5 differs from the bead region 1 of Fig.l in that in Fig. 5, the bead reinforcement 6 between carcass ply 3 and carcass turnup 3a is arranged in such a way that the lower end 8 of the bead reinforcement axially inside of Right edge core 2 between the vertical core 2 and carcass ply 3 and then runs between carcass ply 3 and carcass puff 3 a.

Landscapes

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

Abstract

L'invention porte sur un pneumatique de véhicule comprenant deux régions de talon (1), qui présentent des tringles sur chant (2) en tant que tringles de talon, ainsi qu'au moins une couche de carcasse (3) qui s'étend sur toute la section transversale du pneumatique de la première à la seconde région de talon (1) et s'étend d'un point axialement intérieur à un point axialement extérieur en entourant les tringles sur chant (2) et est réalisée sous la forme d'un bord relevé (30) de la carcasse, l'extrémité (4) du bord relevé de la carcasse étant placée à une hauteur radiale qui se trouve en dehors de l'extension radiale de la tringle sur chant (2). Pour créer un pneumatique de véhicule possédant une résistance au roulement améliorée en même temps qu'une bonne rigidité latérale, on se dispense d'un cavalier de tringle, l'extrémité (4) du bord relevé de carcasse est placée dans une plage de hauteur radiale (h) allant de 2 mm à 25 mm, mesurée à partir du chant radialement extérieur de la tringle sur chant (5), dans une direction radialement extérieure, et on utilise un renfort de talon (6) qui commence à la hauteur de la tringle sur chant (2) et couvre au moins l'extrémité (4) du bord relevé de la carcasse.
PCT/EP2014/065683 2013-10-11 2014-07-22 Pneumatique de véhicule WO2015051931A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310111264 DE102013111264A1 (de) 2013-10-11 2013-10-11 Fahrzeugluftreifen
DE102013111264.1 2013-10-11

Publications (1)

Publication Number Publication Date
WO2015051931A1 true WO2015051931A1 (fr) 2015-04-16

Family

ID=51225517

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/065683 WO2015051931A1 (fr) 2013-10-11 2014-07-22 Pneumatique de véhicule

Country Status (2)

Country Link
DE (1) DE102013111264A1 (fr)
WO (1) WO2015051931A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020131873A (ja) * 2019-02-18 2020-08-31 横浜ゴム株式会社 空気入りタイヤ
US20240034100A1 (en) * 2021-02-17 2024-02-01 Bridgestone Corporation Pneumatic tire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102194785B1 (ko) * 2019-04-15 2020-12-24 한국타이어앤테크놀로지 주식회사 보강재를 구비한 공기압 타이어

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1142695A2 (fr) * 2000-04-07 2001-10-10 Bridgestone Corporation Procédé pour la confection de pneus
DE102011051829A1 (de) * 2011-07-14 2013-01-17 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102011053822A1 (de) * 2011-09-21 2013-03-21 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen in Radialbauart

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1142695A2 (fr) * 2000-04-07 2001-10-10 Bridgestone Corporation Procédé pour la confection de pneus
DE102011051829A1 (de) * 2011-07-14 2013-01-17 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
DE102011053822A1 (de) * 2011-09-21 2013-03-21 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen in Radialbauart

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020131873A (ja) * 2019-02-18 2020-08-31 横浜ゴム株式会社 空気入りタイヤ
JP7368690B2 (ja) 2019-02-18 2023-10-25 横浜ゴム株式会社 空気入りタイヤ
US20240034100A1 (en) * 2021-02-17 2024-02-01 Bridgestone Corporation Pneumatic tire

Also Published As

Publication number Publication date
DE102013111264A1 (de) 2015-04-16

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