[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO2008046685A1 - Pneumatique de véhicule - Google Patents

Pneumatique de véhicule Download PDF

Info

Publication number
WO2008046685A1
WO2008046685A1 PCT/EP2007/059204 EP2007059204W WO2008046685A1 WO 2008046685 A1 WO2008046685 A1 WO 2008046685A1 EP 2007059204 W EP2007059204 W EP 2007059204W WO 2008046685 A1 WO2008046685 A1 WO 2008046685A1
Authority
WO
WIPO (PCT)
Prior art keywords
tire
side walls
ground
cross
tyre
Prior art date
Application number
PCT/EP2007/059204
Other languages
German (de)
English (en)
Inventor
Rüdiger MENZ
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 WO2008046685A1 publication Critical patent/WO2008046685A1/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
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
    • 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
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • B60C13/02—Arrangement of grooves or ribs
    • 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
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • B60C13/02—Arrangement of grooves or ribs
    • B60C13/023—Arrangement of grooves or ribs preventing watersplash

Definitions

  • the invention relates to a pneumatic vehicle tire with a profiled tread, a multi-layer belt, an inner layer, a radial carcass, bead areas with bead cores and core profiles, side walls and arranged with at least one each in the region of each side wall, in cross-section approximately crescent-shaped and in case of breakdown viable insert and with the radially outer regions of the side walls arranged just inside the shoulder areas, under normal operating conditions not in contact with the ground in contact, with pressure-free tires on the ground supporting supporting parts made of rubber.
  • a bending moment is generated in the contact surface to the ground as a result of the force conditions acting through which the belt is inwardly arched together with the tread. The warping of the tread leads to a shorter tire life in run-flat.
  • the driving characteristics of the tire deteriorate in the run-down.
  • the invention is based on the object, in a tire of the type mentioned to significantly reduce the bending load of the inserts in the side walls and thereby at the same time particularly effective to prevent buckling of the belt and tread area of the tire in case of breakdown, with unpressurized tires.
  • the support members are formed as a cross-sectionally triangular support wings with a free tip area, which comes in unpressurized tire in contact with the ground, such that the force acting in the tire sidewalls wheel load either with the oppositely acting ground contact force at least is substantially aligned or axially acting within the oppositely acting ground contact force.
  • This measure also results in a reduced bending moment in the side walls and therefore in a lower bending of the inserts and thus in a more even load of the same. This has a favorable effect on the running time of the tire in the event of a breakdown and makes it possible to make the inserts less stiff and voluminous than conventionally designed tires, thereby improving ride comfort in normal operation.
  • Section width (W) between -5% W and +10% W is offset and when the tip portion of the support wing in the radial direction opposite the belt edge of the radially outermost belt layer is offset to +/- 20% of the cross-sectional height (H) of the tire.
  • FIG 2 shows the tire of Figure 1 under load in the unpressurized state.
  • Fig. 3 and Fig. 4 are cross-sections through halves of inventively designed pneumatic vehicle tire and
  • Fig. 5 shows the tire of Fig. 4 under load in the pressureless state.
  • the pneumatic vehicle tires illustrated in all drawing figures are pneumatic radial tires which, in order to ensure a certain self-bearing capability of the tire in the event of a breakdown, are reinforced in the region of the side walls with reinforcing profiles, referred to hereinafter as inserts 8, 18. All illustrated pneumatic vehicle tires also have a profiled tread 1, a belt assembly 2, for example, two belt layers 2a, 2b, an airtight inner layer 3, core packages of bead cores 5 and core profiles 6, side walls 7 and a particular single-layer radial carcass 4.
  • FIGS. 1 and 2 show a pneumatic vehicle tire according to the prior art with an annular circumferential insert 8 installed in each side wall between the inner layer 3 and the radial carcass 4.
  • Fig. 1 shows the tire according to its shape contour, which substantially corresponds to the contour under internal pressure, for example of the order of a little more than 2 bar.
  • Fig. 2 shows this tire analogous to FIG. 1 but without internal pressure and supported on the ground and under load.
  • the belt bandage 2 and the tread 1 are arched into the interior of the tire, in the area of the tire shoulders the tire rests against the ground.
  • the formation of a concavity is largely due to the forces acting on the ground contact surface.
  • Fig. 2 illustrates with the arrow F / 2 half of the acting wheel load, with the arrow B / 2 acting in the opposite direction, but axially further inwardly applying ground contact force.
  • the mutual lateral offset of F / 2 and B / 2 has a bending moment, which is symbolized by the arrow M, this causes the Einwölben the tire in the area of tread and belt association.
  • Figs. 3 and 4 show embodiments of inventively executed tire in its shape contour, the contour which is determined by the vulcanization mold.
  • the two inserts 18 in the sidewalls 7 of the tire have a significantly smaller thickness and a reduced cross-sectional area than the inserts 8 shown in FIGS. 1 and 2.
  • the reduction in the cross-sectional area of the inserts 18 relative to the inserts 8 may be on the order of 40% or slightly more.
  • an approximately triangular shaped wing 10 made of rubber in cross-section is formed in each case in an annular manner.
  • the support wings 10 do not come into contact with the ground under the normal operating conditions of the tire.
  • the free tip region 10 ' viewed from the location of the tire having the largest cross-sectional width W, is between a distance ai of up to 5% W within the location with the largest cross-sectional width W (FIG 3) up to a distance a 2 of up to 10% W outside the location with the largest cross-sectional width W ( Figure 4).
  • the position of the triangle tip 10 ' is determined by the position of the belt edge of the radially outermost belt layer 2b.
  • the tip 10 ' is located, with respect to the section height H of the tire, between a distance of bi of up to 10% H radially outward and a distance b 2 of up to 10% H radially inside the belt edge of the belt layer 2b. H is measured in front of the radially innermost point of the bead core 5 from.
  • the support wing 10 should come into contact with the ground with the triangle tip or the tip region 10 'when the tire is depressurized, so that the outer contour of the support wing 10 adjoining the tread runs slightly convex in cross section.
  • the two support wings 10 do not come into contact with the substrate under normal operating conditions.
  • the smaller cross-sectional area of the inserts 18 in the side walls 7 has a favorable effect on the ride comfort, since the side walls 7 need not be so strongly stiffened.
  • the support wings 10 are configured and arranged so that the force transmitted from the ground to the tire acts axially outward of the wheel load force, a bending moment is created by which the tire is in the area of the tread and belt even pressed against the ground. This is particularly effective against unwanted buckling and advantageously has a more homogeneous pressure distribution in the ground contact patch and a further relief of the inserts result.
  • the two baby wings 10 of the tire are preferably arranged and symmetrical with respect to the equatorial plane of the tire. However, it is possible to arrange one wing 10 radially further out than to use the other and / or wings with different cross-sections.
  • the invention is not limited to the illustrated and described embodiments. It is thus possible, for example, to implement the inserts in the side walls in several parts.

Landscapes

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

Abstract

L'invention concerne un pneumatique de véhicule comprenant : une bande de roulement profilée (1), une ceinture à plusieurs plis (2), une couche intérieure (3), une carcasse radiale (4), des régions de talon pourvues de tringles de talon (5) et de profilés de tringle (6), des flancs (7); au moins une pièce d'insertion respective (18) porteuse en cas de panne, à peu près en forme de croissant de lune dans la section transversale, disposée dans la région de chaque flanc (7); et des parties d'appui (10) en caoutchouc, disposées sur les régions radialement extérieures des flancs (7) juste à l'intérieur des épaulements, parties qui n'entrent pas en contact avec le sol dans les conditions normales de service et qui s'appuient contre le sol lorsque le pneumatique est dégonflé. Les parties d'appui sont réalisées sous la forme d'ailes d'appui (10) de section transversale triangulaire avec une région de pointe libre (10') qui entre en contact avec le sol lorsque le pneumatique est dégonflé, de telle sorte que la force de charge de roue agissant dans les flancs du pneumatique, soit est au moins sensiblement alignée avec la force de contact au sol agissant en sens contraire, soit agit axialement à l'intérieur de la force de contact au sol agissant en sens contraire.
PCT/EP2007/059204 2006-10-20 2007-09-04 Pneumatique de véhicule WO2008046685A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006050471.2A DE102006050471B4 (de) 2006-10-20 2006-10-20 Fahrzeugluftreifen
DE102006050471.2 2006-10-20

Publications (1)

Publication Number Publication Date
WO2008046685A1 true WO2008046685A1 (fr) 2008-04-24

Family

ID=38691716

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/059204 WO2008046685A1 (fr) 2006-10-20 2007-09-04 Pneumatique de véhicule

Country Status (2)

Country Link
DE (1) DE102006050471B4 (fr)
WO (1) WO2008046685A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4212358A1 (fr) 2022-01-14 2023-07-19 Continental Reifen Deutschland GmbH Bandage pneumatique pour véhicule

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2403436A1 (de) * 1973-01-24 1974-07-25 Dunlop Ltd Flugzeugfahrwerk-luftreifen
US6550509B1 (en) * 1998-06-19 2003-04-22 The Goodyear Rubber & Tire Company Tread and sidewall construction for runflat tire

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1051330A (fr) 1974-10-09 1979-03-27 John T. Alden Pneumatique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2403436A1 (de) * 1973-01-24 1974-07-25 Dunlop Ltd Flugzeugfahrwerk-luftreifen
US6550509B1 (en) * 1998-06-19 2003-04-22 The Goodyear Rubber & Tire Company Tread and sidewall construction for runflat tire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4212358A1 (fr) 2022-01-14 2023-07-19 Continental Reifen Deutschland GmbH Bandage pneumatique pour véhicule

Also Published As

Publication number Publication date
DE102006050471A1 (de) 2008-04-24
DE102006050471B4 (de) 2023-08-10

Similar Documents

Publication Publication Date Title
EP2536576B1 (fr) Pneumatique de véhicule
DE69918031T2 (de) Luftreifen
DE3146531A1 (de) Sicherheitsluftreifen
EP2527163B1 (fr) Pneu de véhicule
DE69937503T2 (de) Konstruktion basierend auf verstärkten keil-inserts für reifen mit notlauf-eigenschaften
DE102011000703A1 (de) Verfahren zur Herstellung eines Fahrzeugluftreifens
DE102006050471B4 (de) Fahrzeugluftreifen
WO2006128550A1 (fr) Sculpture de bande de roulement comportant des rainures peripheriques asymetriques pour un pneu de vehicule utilitaire
EP1759892A2 (fr) Pneu de véhicule et méthode pour sa fabrication
DE102004059771B4 (de) Fahrzeugluftreifen und Verfahren zur Herstellung
EP1982849B1 (fr) Pneus de véhicule dotés de propriétés d'urgence
WO2007147686A1 (fr) Pneumatique de véhicule à paroi latérale dotée d'un profilé de renforcement
WO2017008921A1 (fr) Pneumatique de véhicule
DE69931739T2 (de) Fahrzeugluftreifen
EP4054866B1 (fr) Pneu de véhicule doté d'une nervure de protection de jante
DE102014207193A1 (de) Fahrzeugluftreifen
EP2078622B1 (fr) Pneus de véhicule
DE69908984T2 (de) Lauffläche verstärkende tragrippe für notlaufreifen
WO2009053132A1 (fr) Pneumatique de véhicule, ayant des caractéristiques de roulage à plat
EP1535761B1 (fr) Bandage pneumatique
EP3308976B1 (fr) Pneumatiques de véhicule
EP2918425B1 (fr) Pneumatique de véhicule
DE102016216732A1 (de) Fahrzeugluftreifen mit Notlaufeigenschaften
EP2871069B1 (fr) Pneumatiques de véhicule
DE102008037614B4 (de) Fahrzeugluftreifen

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07820021

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 07820021

Country of ref document: EP

Kind code of ref document: A1