DE2428471A1 - Safety insert for pneumatic type - with trapezoidal internal tyre to hold outer tyre on wheel rim - Google Patents

Safety insert for pneumatic type - with trapezoidal internal tyre to hold outer tyre on wheel rim

Info

Publication number
DE2428471A1
DE2428471A1 DE19742428471 DE2428471A DE2428471A1 DE 2428471 A1 DE2428471 A1 DE 2428471A1 DE 19742428471 DE19742428471 DE 19742428471 DE 2428471 A DE2428471 A DE 2428471A DE 2428471 A1 DE2428471 A1 DE 2428471A1
Authority
DE
Germany
Prior art keywords
tyre
tire
wheel rim
air hose
vehicle wheel
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.)
Pending
Application number
DE19742428471
Other languages
German (de)
Inventor
Hermann Henning
Lothar Jegull
Johannes Kosanke
Henryk Pakur
Reinhard Dipl Ing Tiemann
Hermann Dipl Ing Wittneben
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 DE19742428471 priority Critical patent/DE2428471A1/en
Publication of DE2428471A1 publication Critical patent/DE2428471A1/en
Pending 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
    • B60C17/00Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/01Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional inflatable supports which become load-supporting in emergency

Landscapes

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

Abstract

The pneumatic tyre (5) has a tubeless structure and is fitted onto a conventional wheel rim (2). A smaller internal tyre (6) is fitted inside the larger one and has a base which is fitted inside the larger one and has a base which is wider than the outer diameter. This inner tyre sits with its base against the bottom walls of the outer tyre and presses same against the wheel rim. It prevents the outer tyre from being dragged off the wheel rim especially when it is deflated. The shape of the inner tyre is such that when the outer tyre is deflated and the wheel runs on the inner one, its base is pressed further outwards to hold the outer tyre onto the wheel rim with greater force.

Description

Luftbereiftes Fahrzeugrad Die Erfindung betrifft ein luftbereiftes Fahrzeugrad mit einem innerhalb des Reifenhohlraumes befindlichen, an den Reifenwülsten anliegenden Luftschlauch, dessen am äußeren Umfang gelegene Fläche im Abstand von der Laufstreifenzone des Luftreifens angeordnet ist.Vehicle wheel with pneumatic tires The invention relates to a pneumatic tire Vehicle wheel with one located inside the tire cavity on the tire beads adjacent air hose, its surface located on the outer circumference at a distance of the tread zone of the pneumatic tire is arranged.

Die so ausgeführten Fahrzeugräder haben den Vorteil, daß der genannte Luftschlauch eine Lagesicherung der Reifenwülste herbeiführt. Diese Lagesicherung ist insbesondere dann erwünscht, wenn auf den Reifen größere seitliche Kräfte einwirken.The vehicle wheels designed in this way have the advantage that the said Air hose secures the position of the tire beads. This position assurance is particularly desirable when the tire is subjected to greater lateral forces.

Der Erfindung liegt im wesentlichen die Aufgabe zugrunde, durch eine besondere Gestaltung des Luftschlauches das luftbereifte Fahrzeugrad so auszubilden, daß auch bei starken seitlichen Kräften und den dabei eintretenden seitlichen Verformungen des Luftreifens unerwünschte Verformungen des Luftschlauches ausgeschlossen sind.The invention is essentially based on the object by a special design of the air hose to design the vehicle wheel with pneumatic tires, that even with strong lateral forces and the resulting lateral deformations of the pneumatic tire, undesirable deformations of the air tube are excluded.

Zur Lösung dieser Aufgabe weist erfindungsgemäß der Luftschlauch einen etwa dreieckförmigen oder trapezförmigen Querschnitt auf in der Weise, daß die axiale Erstreckung des Luftschlauches am äußeren Umfang kleiner ist als am inneren Umfang.To achieve this object, the air hose according to the invention has a approximately triangular or trapezoidal cross-section in such a way that the axial Extension of the air hose on the outer circumference is smaller than on the inner circumference.

Die relativ große Basis des Luftschlauches an seinem inneren Umfang sorgt dabei für die Lagesicherung der beiden Reifenwülste, während der am äußeren Umfang gelegene Teil des Luftschlauches dann wirksam wird, wenn der Reifen beschädigt worden ist. Treten relativ große Seitenkräfte auf, so kann eine entsprechend große seitliche Auslenkung des Reifenkörpers ohne Beeinflussung des Luftschlauches deshalb eintreten, weil die seitlichen Wände des Luftschlauches schräg verlaufen bzw. der Luft schlauch insgesamt gesehen einen dreieckförmigen oder trapezförmigen Querschnitt hat.The relatively large base of the air hose on its inner circumference ensures the position of the two tire beads, while the one on the outside Circumferential part of the air tube then becomes effective when the tire is damaged has been. If relatively large lateral forces occur, a correspondingly large one can occur lateral deflection of the tire body without affecting the air hose occur because the side walls of the air hose are inclined or the Overall, the air hose has a triangular or trapezoidal cross-section Has.

Weitere Einzelheiten der Erfindung werden anhand der Zeichnung erläutert, in der ein Ausführungsbeispiel dargestellt ist. Die Abbildung zeigt einen radialen Teilschnitt durch ein Fahrzeugrad.Further details of the invention are explained with reference to the drawing, in which an embodiment is shown. The figure shows a radial Partial section through a vehicle wheel.

Der im wesentlichen aus Gummi oder gummiähnlichen Kunststoffen bestehende Luftreifen 1 mit auf der Felge 2 aufliegenden Reifenwülsten 3, hochbiegsamen Seitenwänden 4 gnd einem Laufstreifen 5 umschließt einen unter Uberdruck stehenden Stutzschlauch 6. Der durch den Stützschlauch 6 bestimmte Hohlraum 7 steht unter einem Druck, der größer ist als der übrige Hohlraum 8 des Reifenkörpers 1.The one consisting essentially of rubber or rubber-like plastics Pneumatic tire 1 with tire beads 3 resting on the rim 2, highly flexible side walls 4 and a tread 5 encloses a support hose which is under excess pressure 6. The cavity 7 determined by the support tube 6 is under a pressure which is larger than the rest of the cavity 8 of the tire body 1.

Der Stützschlauch 6 hat einen etwa trapezförmigen Querschnitt.The support tube 6 has an approximately trapezoidal cross-section.

Seine größte axiale Erstreckung hat er an seinem inneren Durchmesser Dort liegt er auch an den beiden Reifenwülsten 3 an, so daß diese eine Lagesicherung erfahren. Am äußeren Umfang ist die axiale Erstreckung des Stützschlauches 6 wesentlich kleiner. Sie ist etwa halb so groß wie diejenige am inneren Umfang des Stützschlauches 6.It has its greatest axial extent on its inner diameter There it is also on the two tire beads 3, so that they secure their position Experienced. On the outer circumference, the axial extent of the support tube 6 is essential smaller. She is about half the size of the one on the inner circumference of the support hose 6.

Durch diese trapezförmige Querschnittsform (in symmetrischer Gestaltung) ergeben sich beidseitig schräge Seitenwände 9 des Stützschlauches 6. Dies hat den Vorteil, daß der Reifenkörper 1 seitlich relativ stark verzerrt werden kann. Dabei werden unerwünschte Verformungen des Stützschlauches 6 verhindert, die dazu führen könnten, daß der Stützschlauch 6 zur Lagesicherung der Reifenwülste 3 außerstande wäre.Due to this trapezoidal cross-sectional shape (in a symmetrical design) inclined side walls 9 of the support tube 6 result on both sides. This has the Advantage that the tire body 1 can be laterally distorted relatively strongly. Included unwanted deformations of the support tube 6, which lead to it, are prevented could that the support tube 6 for securing the position of the tire beads 3 incapable were.

Am äußeren Umfang des Stützschlauches 6 kann dieser eine axiale Erstreckung haben, die sehr klein ist, so daß demgemäß ein Stützschlauch 6 gegeben wäre, der einen etwa dreieckförmigen Querschnitt hat.On the outer circumference of the support hose 6, the latter can extend axially have, which is very small, so that accordingly a support tube 6 would be given, the has an approximately triangular cross-section.

Claims (4)

Ansprüche: Expectations: Luftbereiftes Fahrzeugrad mit einem innerhalb des Reifenhohlraumes befindlichen, an den Reifenwülsten anliegenden Luftschlauch, dessen am äußeren Umfang gelegene Fläche im Abstand von der Laufstreifenzone des Luftreifens angeordnet ist, dadurch gekennzeichnet, daß der Luftschlauch (6) einen etwa trapezförmigen oder dreieckförmigen Querschnitt in der Weise hat, daß seine größte axiale Erstreckung sich am inneren Umfang des Luftschlauches befindet.Pneumatic vehicle wheel with one inside the tire cavity located on the tire beads resting air hose, its on the outer circumference located surface is arranged at a distance from the tread zone of the pneumatic tire, characterized in that the air hose (6) has an approximately trapezoidal or triangular cross-section in such a way that its greatest axial extent is located on the inner circumference of the air hose. 2. Fahrzeugrad nach Anspruch 1, dadurch gekennzeichnet, daß die axiale Erstreckung des Stützschlauches (6) am äußeren Umfang etwa der halben axialen Erstreckung am inneren Umfang dieses Stützschlauches entspricht. 2. Vehicle wheel according to claim 1, characterized in that the axial Extension of the support hose (6) on the outer circumference approximately half the axial extension corresponds to the inner circumference of this support tube. 3. Fahrzeugrad nach Anspruch 1, dadurch gekennzeichnet, daß unter normalen Betriebsbedingungen bei nicht eingefedertem Reifenkörper der Luftschlauch in bekannter Weise lediglich die Reifenwülste (3) des Reifenkörpers (1) berührt und von der Felge (2) in Abstand angeordnet ist. 3. Vehicle wheel according to claim 1, characterized in that below normal operating conditions when the tire body is not compressed, the air tube only touches the tire beads (3) of the tire body (1) in a known manner and is spaced from the rim (2). 4. Fahrzeugrad nach Anspruch 1, dadurch-gekennzeichnet, daß die, Spitze des Dreieckes bzw. die am äußeren Umfang gelegene Fläche des Luftschlauches (6) mittig unterhalb des Laufstreifens (5) des Reifenkörpers (1) angeordnet ist. 4. Vehicle wheel according to claim 1, characterized in that the, Point of the triangle or the area of the air hose located on the outer circumference (6) is arranged centrally below the tread (5) of the tire body (1).
DE19742428471 1974-06-12 1974-06-12 Safety insert for pneumatic type - with trapezoidal internal tyre to hold outer tyre on wheel rim Pending DE2428471A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742428471 DE2428471A1 (en) 1974-06-12 1974-06-12 Safety insert for pneumatic type - with trapezoidal internal tyre to hold outer tyre on wheel rim

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742428471 DE2428471A1 (en) 1974-06-12 1974-06-12 Safety insert for pneumatic type - with trapezoidal internal tyre to hold outer tyre on wheel rim

Publications (1)

Publication Number Publication Date
DE2428471A1 true DE2428471A1 (en) 1976-01-02

Family

ID=5917996

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742428471 Pending DE2428471A1 (en) 1974-06-12 1974-06-12 Safety insert for pneumatic type - with trapezoidal internal tyre to hold outer tyre on wheel rim

Country Status (1)

Country Link
DE (1) DE2428471A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159730A (en) * 1976-07-17 1979-07-03 Ohtsu Tire & Rubber Co., Ltd. Safety wheel
DE4139470A1 (en) * 1990-11-29 1992-08-06 Sumitomo Rubber Ind Double radial tyre - has double construction with inner annular tube touching rim but not tread and inflated to higher pressure than outer body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159730A (en) * 1976-07-17 1979-07-03 Ohtsu Tire & Rubber Co., Ltd. Safety wheel
DE4139470A1 (en) * 1990-11-29 1992-08-06 Sumitomo Rubber Ind Double radial tyre - has double construction with inner annular tube touching rim but not tread and inflated to higher pressure than outer body

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