WO2005044596A1 - Pneu de vehicule - Google Patents

Pneu de vehicule Download PDF

Info

Publication number
WO2005044596A1
WO2005044596A1 PCT/EP2004/052434 EP2004052434W WO2005044596A1 WO 2005044596 A1 WO2005044596 A1 WO 2005044596A1 EP 2004052434 W EP2004052434 W EP 2004052434W WO 2005044596 A1 WO2005044596 A1 WO 2005044596A1
Authority
WO
WIPO (PCT)
Prior art keywords
carcass
height
tire
profile
thickness
Prior art date
Application number
PCT/EP2004/052434
Other languages
German (de)
English (en)
Inventor
Udo Frerichs
Original Assignee
Continental Aktiengesellschaft
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 Aktiengesellschaft filed Critical Continental Aktiengesellschaft
Publication of WO2005044596A1 publication Critical patent/WO2005044596A1/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
    • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
    • B60C15/0036—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with high ply turn-up, i.e. folded around the bead core and terminating radially above the point of maximum section width
    • 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
    • B60C15/0027—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with low ply turn-up, i.e. folded around the bead core and terminating at 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
    • 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

Definitions

  • the invention relates to a pneumatic pneumatic vehicle tire with a profiled tread, a multilayer belt structure in particular, an inner layer, an at least single-layer carcass, which is guided in bead areas around bead cores with the formation of a flap, side walls and with at least one introduced in the area of each side wall , cross-section crescent-shaped reinforcement profile, which is introduced between the inner layer and the carcass.
  • Such pneumatic vehicle tires which are self-supporting in the event of a breakdown, have been known for a long time.
  • the reinforcement profiles installed in the area of the side walls of the tire are designed with regard to their cross-sectional shape and with regard to the properties of their elastomeric mixture in such a way that they are able to withstand a sudden loss of pressure, i.e. in the event of a puncture, for a certain time or over a certain time To get mileage self-supporting.
  • a self-supporting tire of the type mentioned is known for example from DE 2 331 530 A.
  • Reinforcing elements have a maximum thickness of 3% to 15% of the maximum width of the tire under internal pressure.
  • the reinforcement profile ensuring the tire's self-bearing capacity consists of several profile parts of different hardnesses. Such an embodiment is known for example from DE 29 43 654 A.
  • the invention is based on the object of optimizing a pneumatic vehicle tire of the type mentioned in order to ensure that in normal operation despite reinforcement profiles To keep warming low, to ensure good comfort properties and to ensure the desired self-bearing capacity of the tire in the event of a puncture.
  • the object is achieved according to the invention in that the caracass high slope radially outside the bead cores is traced back to the carcass coming from the belt at a height of at most 10% of the maximum cross-sectional height of the tire, and in that the reinforcement profiles at this height have a thickness that is between 20 % and 35% of their greatest thickness and at least extend into the areas to the side of the bead cores.
  • the reinforcement profiles in the tire near the bead areas can be made more solid than is the case with profiles used in the usual way.
  • the overall cross-sectional area of the reinforcement profile can be optimized in this way without impairing the self-bearing capacity of the tire.
  • a reinforcement of approximately the same cross-section can be achieved over a wide area of the side wall.
  • the measure of returning the carcass flare close to the bead core means that a larger volume is available in this area for an optimal design of the reinforcement profiles.
  • the bead areas are made without core profiles. This measure simplifies the manufacture of the tire and allows the cross-section of the reinforcement profile to be optimally designed accordingly.
  • an additional profile axially outside the carcass flare, which preferably extends to a height of 25% to 30% of the cross-sectional height of the tire.
  • the additional profile and the associated reinforcement profile can be designed together in such a way that the side walls of the tire are essentially of constant width up to a height of approximately 75% of the maximum cross-sectional height.
  • these two parts have at least substantially identical hardnesses.
  • its thickness is at least 15% of its greatest thickness in the range of 25% of the maximum cross-sectional height of the tire and at least 20% of its greatest thickness in the range of 10% of the tire.
  • FIG. 1 shows a cross section through a radial tire for passenger cars.
  • Fig. 1 shows a self-supporting tire designed according to the invention in cross section.
  • this tire In the event of a pressure loss in the event of a breakdown, this tire is able to remain stable, at least over a certain mileage, so that it is possible to continue driving.
  • the essential components that make up the tire are a profiled tread 1, for example a two-ply belt 2, in particular one ply, for tires with a high profile
  • Load-bearing capacity preferably two-ply, carcass 3, an airtight or largely airtight inner layer 4, beads 5 with bead cores 6, side walls 7 and reinforcing profiles 8 that are approximately crescent-shaped in cross section. Near the bead areas, the side walls 7 can be provided with rim flange profiles 9 all around.
  • the two layers of the belt 2 can consist, in a known manner, of reinforcements embedded in a rubber mixture, in particular steel cord, which run parallel to each other within each layer, the steel cords of one layer being oriented in a crossing arrangement to the steel cords of the second layer and with the tire circumferential direction include an angle between 15 ° and 30 °.
  • the reinforcement profiles 8 are arranged between the inner layer 4 and the carcass 3 and give the tire Pressure loss makes it self-supporting, so that it is possible to continue driving over a certain period of time and at reduced speed.
  • the carcass 3 runs around the bead cores 6 from the inside to the outside and is thus traced back to itself, the section running in the direction of the belt 2 being referred to as the carcass flap 3a and, in the embodiment shown, ending at a height which is radially outside the point with the largest Tire width is.
  • the tire is without
  • 6 core profiles are inserted radially outside the bead cores between the carcass 3 coming from the belt 2 and the upturn 3a.
  • the carcass 3 can be guided around the bead cores 6 without inserting core profiles, so that the flaps 3a are already returned to the carcass 3 radially outside the bead cores 6. If one considers the cross-sectional height H of the tire, measured or in relation to the bead toes in the case of tires mounted on a rim (not shown) and placed under normal pressure, the cantilever 3a is already at a height of at most 10% of the cross-sectional area H of the tire on the carcass 3 recycled.
  • a separate core profile with only a very small cross-sectional area can be inserted radially outside the bead cores 6 become.
  • the reinforcement profiles 8 By omitting the otherwise customary core profiles, the possibility is created to make the reinforcement profiles 8 more massive in the direction of the bead regions, to increase their rubber mass accordingly by eliminating the core profiles.
  • the reinforcement profiles 8 also extend in addition to the bead cores 6 to at most the radially innermost end of the bead cores 6.
  • each reinforcement profile 8 is at least 50% of its thickness at the thickest point.
  • each reinforcement profile 8 still has a thickness of at least 20% to 35% of its maximum thickness. The maximum thickness is between approximately 10 and 12 mm.
  • the end regions of the reinforcement profiles 8 facing away from the bead regions extend a little below the edges of the belt 2.
  • the thickness of the reinforcement profiles 8 also decreases continuously towards these end regions.
  • each bead area on its outside and axially outside of the flap 3a can have an additional profile 10, which in the area next to the bead cores 6 extends to a height of preferably 25% to 30% of the maximum cross-sectional height H of the tire, be reinforced.
  • the additional profile 10, like the reinforcement profile 8, is created from a hard rubber mixture.
  • the hardness of the reinforcement profile 8 and the additional profile 10 is chosen in a range between 72 and 80 Shore A.
  • the reinforcing profile 8, together with the additional profile 10, causes a side wall which is substantially constant over a wide range of its extension and which, in this way, extends to approximately 75% of the maximum cross-sectional height H.
  • the invention creates a self-supporting tire in the event of a breakdown, which builds up less heat in normal operation than comparable tires with reinforcement profiles.
  • the one-piece design of the reinforcement profile shown can be composed of two or more profile parts, each of which is approximately crescent-shaped in itself and together at least essentially take up the cross-sectional area of a one-piece reinforcement profile, but consist of different rubber compounds.
  • the advantage of a one-piece design of a reinforcement profile is a simpler optimal design of the same and the possibility of optimally reducing its mass.

Landscapes

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

Abstract

L'invention concerne un pneu de véhicule à structure radiale, présentant : une bande de roulement sculptée (1); une nappe de sommet (2) constituée notamment de plusieurs couches; une couche intérieure (1); une carcasse (3) qui comporte au moins une couche et qui est guidée dans des zones de talon (5) autour de tringles de talon (6) de façon à former un rabat (3a) ; des flancs (7); et au moins un profil de renforcement (8), dont la section présente une forme de croissant de lune et qui est placé, au niveau de chaque flanc (7), entre la couche intérieure (4) et la carcasse (3). Le rabat (3a) est ramené sur la carcasse (3) venant de la nappe de sommet, dans le sens radial à l'extérieur des tringles de talon (6), à une hauteur correspondant au maximum à 10 % de la hauteur maximale (H) de la section du pneu. Les profilés de renforcement (8) présentent à cette hauteur une épaisseur comprise entre 20% et 35 % de leur épaisseur maximale et s'étendent au moins jusque dans les zones situées sur les côtés des tringles de talon (6).
PCT/EP2004/052434 2003-11-05 2004-10-05 Pneu de vehicule WO2005044596A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10351587.9 2003-11-05
DE2003151587 DE10351587A1 (de) 2003-11-05 2003-11-05 Fahrzeugluftreifen

Publications (1)

Publication Number Publication Date
WO2005044596A1 true WO2005044596A1 (fr) 2005-05-19

Family

ID=34530125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/052434 WO2005044596A1 (fr) 2003-11-05 2004-10-05 Pneu de vehicule

Country Status (2)

Country Link
DE (1) DE10351587A1 (fr)
WO (1) WO2005044596A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3059102A4 (fr) * 2013-11-18 2017-07-12 Sumitomo Rubber Industries, Ltd. Pneumatique
JP6319415B1 (ja) * 2016-12-19 2018-05-09 横浜ゴム株式会社 ランフラットタイヤ
EP3828008A1 (fr) * 2019-11-26 2021-06-02 Sumitomo Rubber Industries, Ltd. Pneumatique
CN114516246A (zh) * 2020-11-20 2022-05-20 通伊欧轮胎株式会社 轮胎
EP3865315A4 (fr) * 2018-11-16 2022-08-03 The Yokohama Rubber Co., Ltd. Pneu à roulage à plat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139040A (en) * 1976-04-18 1979-02-13 Bridgestone Tire Company Limited Pneumatic tire for vehicles
DE2943654A1 (de) * 1978-10-30 1980-05-14 Bridgestone Tire Co Ltd Sicherheits-luftreifen
US5058649A (en) * 1990-07-25 1991-10-22 The Goodyear Tire & Rubber Company Pneumatic tire comprising a pentagonal bead core

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139040A (en) * 1976-04-18 1979-02-13 Bridgestone Tire Company Limited Pneumatic tire for vehicles
DE2943654A1 (de) * 1978-10-30 1980-05-14 Bridgestone Tire Co Ltd Sicherheits-luftreifen
US5058649A (en) * 1990-07-25 1991-10-22 The Goodyear Tire & Rubber Company Pneumatic tire comprising a pentagonal bead core

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3059102A4 (fr) * 2013-11-18 2017-07-12 Sumitomo Rubber Industries, Ltd. Pneumatique
US10040322B2 (en) 2013-11-18 2018-08-07 Sumitomo Rubber Industries, Ltd. Pneumatic tire
JP6319415B1 (ja) * 2016-12-19 2018-05-09 横浜ゴム株式会社 ランフラットタイヤ
JP2018099922A (ja) * 2016-12-19 2018-06-28 横浜ゴム株式会社 ランフラットタイヤ
WO2018116646A1 (fr) * 2016-12-19 2018-06-28 横浜ゴム株式会社 Pneu à flancs renforcés
CN110062705A (zh) * 2016-12-19 2019-07-26 横滨橡胶株式会社 泄气保用轮胎
US11794529B2 (en) 2016-12-19 2023-10-24 he Yokohama Rubber Co., LTD. Run-flat tire
CN110062705B (zh) * 2016-12-19 2021-09-21 横滨橡胶株式会社 泄气保用轮胎
EP3865315A4 (fr) * 2018-11-16 2022-08-03 The Yokohama Rubber Co., Ltd. Pneu à roulage à plat
EP3828008A1 (fr) * 2019-11-26 2021-06-02 Sumitomo Rubber Industries, Ltd. Pneumatique
US11904640B2 (en) 2019-11-26 2024-02-20 Sumitomo Rubber Industries, Ltd. Pneumatic tyre
CN114516246A (zh) * 2020-11-20 2022-05-20 通伊欧轮胎株式会社 轮胎
CN114516246B (zh) * 2020-11-20 2024-02-02 通伊欧轮胎株式会社 轮胎

Also Published As

Publication number Publication date
DE10351587A1 (de) 2005-06-02

Similar Documents

Publication Publication Date Title
DE602005006272T2 (de) Schwerfahrzeugreifen
EP2627523B1 (fr) Pneumatique de véhicule
EP1970221B1 (fr) Pneus de véhicule dotés de propriétés d'urgence
EP1901930A1 (fr) Pneu de vehicule a structure de talon renforcee
WO2007141073A1 (fr) Pneumatique pour véhicule automobile avec des propriétés d'urgence
WO2015007403A1 (fr) Pneu de véhicule
EP0881105B1 (fr) Bandage pneumatique pour véhicule
WO2005044596A1 (fr) Pneu de vehicule
DE2202944A1 (de) Fahrzeugluftreifen mit einer zweilagenradialkarkasse und guertellagen aus stahlcord
DE102005041937A1 (de) Fahrzeugluftreifen und Verfahren zur Herstellung
EP1667855B1 (fr) Pneumatique de vehicule
DE102005050675A1 (de) Fahrzeugluftreifen
DE102004059771B4 (de) Fahrzeugluftreifen und Verfahren zur Herstellung
DE102018215196A1 (de) Fahrzeugluftreifen
WO2007147686A1 (fr) Pneumatique de véhicule à paroi latérale dotée d'un profilé de renforcement
DE102004059772B4 (de) Fahrzeugluftreifen
DE102004060468A1 (de) Fahrzeugluftreifen
DE102008037614B4 (de) Fahrzeugluftreifen
EP1982849A1 (fr) Pneus de véhicule dotés de propriétés d'urgence
DE102012106309A1 (de) Fahrzeugluftreifen mit Notlaufeigenschaften
EP2889161B1 (fr) Pneumatiques de véhicule
EP2918425B1 (fr) Pneumatique de véhicule
DE102005051683A1 (de) Fahrzeugluftreifen
EP1883546A1 (fr) Pneumatiques de vehicules et son procede de production
DE102005002402A1 (de) Fahrzeugluftreifen

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase