DE3118406A1 - Pneumatic vehicle tyre - Google Patents

Pneumatic vehicle tyre

Info

Publication number
DE3118406A1
DE3118406A1 DE19813118406 DE3118406A DE3118406A1 DE 3118406 A1 DE3118406 A1 DE 3118406A1 DE 19813118406 DE19813118406 DE 19813118406 DE 3118406 A DE3118406 A DE 3118406A DE 3118406 A1 DE3118406 A1 DE 3118406A1
Authority
DE
Germany
Prior art keywords
depth
profile elements
pneumatic vehicle
fine
grooves
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
DE19813118406
Other languages
German (de)
Inventor
Helmut Dr. 3000 Hannover Burchert
Walter 3200 Hildesheim Groh
Ekkehard Ing.(grad.) Grollich
Klaus Ing.(grad.) 3008 Garbsen Hettling
Dieter Dr. 3006 Burgwedel Kuhn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental AG
Original Assignee
Continental Gummi Werke AG
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 Gummi Werke AG filed Critical Continental Gummi Werke AG
Priority to DE19813118406 priority Critical patent/DE3118406A1/en
Publication of DE3118406A1 publication Critical patent/DE3118406A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03Tread patterns
    • B60C11/12Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03Tread patterns
    • B60C11/12Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1204Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
    • B60C11/1218Three-dimensional shape with regard to depth and extending direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03Tread patterns
    • B60C11/12Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1204Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
    • B60C2011/1213Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe sinusoidal or zigzag at the tread surface

Abstract

These pneumatic tyres have in their tread wave-shaped fine indents in the profile elements which are realised, for example, as ribs or blocks. Furthermore, the invention is also based on such fine indents which terminate at their ends in an elongated fashion and end in grooves which bound the profile elements. In order to achieve an improved resistance to further tearing in the region of the ends of the fine indents which terminate in an elongated fashion, in this area of the fine indents their depth is substantially less than that at the other sections, these depths varying in a ratio of approximately 1:2. In a known manner, the depth here of the wave-shaped part also corresponds to the depth of the grooves which bound the profile elements.

Description

Fahrzeugluftrei fenVehicle pneumatic tires

Die Erfindung betrifft einen Fahrzeugluftreifen mit einem profilierten Laufstreifen, dessen Profilelemente (Rippen, Blöcke) mit wellenförmigen Feineinschnitten versehen sind, die mit ihren gestreckt auslaufenden Enden in die Profilelemente begrenzende Nuten münden.The invention relates to a pneumatic vehicle tire with a profiled one Treads, their profile elements (ribs, blocks) with undulating fine incisions are provided, which ends with their stretched ends in the profile elements delimiting grooves open.

Die bekannten Feineinschnitte der oben erwähnten Ausbildung sind über ihre Länge hinweg von gleichmäßiger Tiefe, die im wesentlichen der Höhe der Profilelemente entspricht. Die so ausgeführten Profilelemente haben jedoch den Nachteil, daß die an den Rändern der Profilelemente befindlichen, gestreckt verlaufenden Endabschnitte der Feineinschnitte zu einer unerwünscht hohen Verformbarkeit führen. Es kann dRei zu Rissen und schließlich Zerstörungen dadurch kommen, daß die Profilelemente vergleichsweise stark aufklaffen können.The well-known sipes of the above-mentioned training are over their length is of uniform depth, which is essentially the height of the profile elements is equivalent to. However, the profile elements executed in this way have the disadvantage that the located on the edges of the profile elements, stretched end sections the fine incisions lead to an undesirably high deformability. It can be three to cracks and ultimately destruction due to the fact that the profile elements are comparatively can gape strongly.

Der Erfindung liegt im wesentlichen die Aufgabe zugrunde, die oben erwähnten Profilelemente so auszubilden, daß eine gesteigerte Weiterreißfestigkeit im Bereich dergstreckt verlaufenden Enden der Feineinschnitte erreicht wird.The invention is essentially based on the above object to train mentioned profile elements so that an increased tear resistance is reached in the area of the stretched ends of the fine incisions.

Aufgrund der Erfindung haben die gestreckt verlaufenden Enden im Vergleich zu den übrigen Abschnitten der Feineinschnitte eine wesentlich geringere Tiefe, wobei die Tiefe auf etwa 40 bis 60 % im Vergleich zur übrigen Tiefe verringert sein kann.Due to the invention, the stretched ends have in comparison to the remaining sections of the fine incisions a much smaller depth, where the depth is about 40 up to 60% compared to the rest of the depth can be reduced.

Dadurch ergibt sich an den Rändern der Profilelemente eine geringere Verformbarkeit; ein nachteiliges Spreizen und Öffnen der Profilelemente wird gerade im Bereich der seitlichen Kanten verhindert.This results in a lower one at the edges of the profile elements Deformability; a disadvantageous spreading and opening of the profile elements is straight in the area of the side edges.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen: Fig. 1 eine Teildraufsicht auf eine Randrippe der Lauffläche eines Fahrzeugluftreifens und Fig. 2 einen senkrechten Schnitt durch die Rippe gemäß Fig. 1 im Bereich des Feineinschnittes.An exemplary embodiment of the invention is shown in the drawing. 1 shows a partial plan view of an edge rib of the tread of a pneumatic vehicle tire and FIG. 2 shows a vertical section through the rib according to FIG. 1 in the region of the Fine incision.

Die Randrippe 1 bildet eine seitlich außen gelegene Schulter 2 des Reifenlaufstreifens, die den Ubergang zu der nicht weiter dargestellten Reifenseitenwand bildet. Zur Laufflächenmitte hin hat die Randrippe 1 etwa in Umfangsrichtung verlaufende Kanten 3, die eine entsprechende Nut 4 im Laufstreifen 5 begrenzt.The edge rib 1 forms a laterally outer shoulder 2 of the Tire tread, which makes the transition to the tire sidewall, not shown forms. Towards the center of the tread, the edge rib 1 has approximately the circumferential direction Edges 3 which delimit a corresponding groove 4 in the tread 5.

Quer zur Reifenumfangsrichtung erstreckt sich ein Feineinschnitt 6 der im mittleren Teil der Randrippe 1 bei 7 wellenförmig gestaltet ist, an seinem der Nut 4 zugekehrten Ende jedoch im rechten Winkel gestreckt verläuft. Das eo ausgeführte Ende des Feineinschnittes 6 ist mit 8 bezeichnet.A fine incision 6 extends transversely to the tire circumferential direction which is designed in the middle part of the edge rib 1 at 7 wave-shaped, at his the end facing the groove 4, however, extends at a right angle. The eo carried out The end of the fine incision 6 is denoted by 8.

Die Breite des Feineinschnittes, der in der Vulkanisierform durch hierin befindliche Bleche abgeformt wird, beträgt etwa 0,5 mm.The width of the fine incision in the vulcanizing mold sheets located therein is molded is about 0.5 mm.

Im Abschnitt 7 des Feineinschnittes 6 hat dieser eine Tiefe T, die im wesentlichen der Tiefe der Nut 4 entspricht; die Tiefe t des Endes 8 ißt hingegen wesentlich kleiner. Sie beträgt nur etwa 50 % der Tiefe T, wodurch die Verformbarkeit der Randrippe 1 im Bereich der Kante 3 vermindert, also ein zu großes Aufklaffeni s des Feineinschnittes 6 verhindert wird. Dadurch ergibt sich eine Schonung der die Nut begrenzenden Randabschnitte der Randrippe 1.In section 7 of the fine incision 6 this has a depth T which corresponds essentially to the depth of the groove 4; the depth t of the end 8, however, eats much smaller. It is only about 50% of the depth T, which makes it deformable the edge rib 1 is reduced in the area of the edge 3, that is, too large a gap s of the fine incision 6 is prevented. This results in a Protection of the edge sections of the edge rib 1 delimiting the groove.

Ein Weiterreißen oder Einreißen im Bereich deS Endes 8 ist damit unterbunden.This prevents further tearing or tearing in the area of the end 8.

Claims (4)

Ansprüche: 1.Fahrzeugluftreifen mit einem profilierten Laufstreifen, dessen Profilelemente (Rippen, Blöcke) mit wellenförmigen Feineinschnitten versehen sind, die mit ihren gestreckt auslaufenden Enden in die die Profilelemente begrenzenden Nuten münden, dadurch gekennzeichnet, daß die Tiefe der Enden (8) wesentlich geringer ist als die Tiefe (T) in den übrigen Abschnitten der Feineinschnitte (6).Claims: 1. Pneumatic vehicle tires with a profiled tread, its profile elements (ribs, blocks) are provided with undulating fine incisions are, which with their stretched ends in the delimiting the profile elements Grooves open, characterized in that the depth of the ends (8) is much smaller is than the depth (T) in the remaining sections of the sipes (6). 2. Fahrzeugluftreifen nach Anspruch 1, dadurch gekennzeichnet, daß sich die Tiefen etwa wie 1 : 2 verhalten.2. Pneumatic vehicle tire according to claim 1, characterized in that the depths are roughly 1: 2. 3. Fahrzeugluftreifen nach Anspruch 1, dadurch gekennzeichnet, daß die frei auslaufenden Enden (8) über ihre gesamte Länge hinweg einerseits und der wellenförmig gestaltete Teil (7) der Feineinschnitte (6) andererseits die unterschiedlichen Tiefen aufweisen.3. Pneumatic vehicle tire according to claim 1, characterized in that the free ends (8) over their entire length on the one hand and the wave-shaped part (7) of the fine incisions (6) on the other hand the different Have depths. 4. Fahrzeugluftreifen nach Anspruch 1, dadurch gekennzeichnet, daß die Tiefe des wellenförmigen Teiles (7) in bekannter Weise im wesentlichen der Tiefe der die Profilelemente (7) begrenzenden Nuten (4) entspricht.4. Pneumatic vehicle tire according to claim 1, characterized in that the depth of the undulating part (7) in a known manner essentially the depth which corresponds to the profile elements (7) delimiting grooves (4).
DE19813118406 1981-05-09 1981-05-09 Pneumatic vehicle tyre Withdrawn DE3118406A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813118406 DE3118406A1 (en) 1981-05-09 1981-05-09 Pneumatic vehicle tyre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813118406 DE3118406A1 (en) 1981-05-09 1981-05-09 Pneumatic vehicle tyre

Publications (1)

Publication Number Publication Date
DE3118406A1 true DE3118406A1 (en) 1982-12-16

Family

ID=6131859

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813118406 Withdrawn DE3118406A1 (en) 1981-05-09 1981-05-09 Pneumatic vehicle tyre

Country Status (1)

Country Link
DE (1) DE3118406A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088876A2 (en) * 1982-03-13 1983-09-21 Continental Aktiengesellschaft Vehicle tyre
DE4447417A1 (en) * 1994-12-30 1996-07-04 Galke Roggisch Kristina Pneumatic tyre tread design

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088876A2 (en) * 1982-03-13 1983-09-21 Continental Aktiengesellschaft Vehicle tyre
EP0088876A3 (en) * 1982-03-13 1984-07-25 Continental Gummi-Werke Aktiengesellschaft Vehicle tyre
DE4447417A1 (en) * 1994-12-30 1996-07-04 Galke Roggisch Kristina Pneumatic tyre tread design

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