Vehicle Pneumatic Tires

Abstract

The invention relates to a vehicle pneumatic tire having a sound-absorbing inner absorber (9) adheringly arranged in its interior at the inner surface (7) opposite the tread (1), wherein the The inner absorber ( 9 ) adheres to the self-sealing sealant ( 8 ) which, at least immediately after application of the sealant, has the adhesive properties necessary for adhesion. In order not to adversely affect the flow properties of the sealant and to ensure a reliable sealing effect of the sealant, a separating layer (10) is arranged between the sealant (8) and the inner absorber (9) and the The separating layer ( 10 ) is arranged in such a way as to ensure sufficient flow capacity of the sealant ( 8 ) for sealing and reliable adhesion of the foam ring ( 9 ).

Description

technical field

[0001] The present invention relates to a vehicle pneumatic tire having, in its interior, a sound-absorbing, annular inner absorber adhesively disposed at an inner surface opposite to the tread surface, wherein the inner absorber is adhered In the case of self-sealing sealants, the sealant has the adhesiveness necessary for adhesion at least immediately after application of the sealant. The present invention also relates to a method for producing the aforementioned pneumatic tire for vehicles. Background technique

[0002] A pneumatic vehicle tire of this type is known from DE 10 2007 028932 A1. The inner absorbent body is a ring of open-cell foam material which reduces air fluctuations in the tire and leads to an improved noise behavior in the vehicle. The sealant applied on the inside of the tire has two functions: the sealant isolates unwanted tire punctures in the tread area in such a way that, in the event of damage to the inner layer, the viscous seal...

Examples

Embodiment Construction

[0040]In Fig. 1 a cross section through a radial passenger car tire is shown, with a profiled tread 1, sidewalls 2, bead regions 3, bead cores 4 and multiple layers of cord belt compound 5 and carcass layer 6. At its inner face, the tire is covered with an inner layer 7 of an airtightly implemented rubber compound. At the inner surface of the inner layer 7 opposite the tread 1 is applied a sealant 8 capable of producing a self-sealing action in the event of a puncture (tire damage). Adhere to the sealant 8 is an inner absorbent body 9 which is pressed against the sealant 8 just after application of the sealant 8 (provided there is still sufficient adhesiveness), as described below. The inner absorber 9 is frequency-adapted to the tire cavity in terms of its sound-absorbing properties. In this case, the inner absorbent body 9 has, for example, an approximately elongated triangular cross-section symmetrical to the tire equator. The foam material of the inner absorber 9 is an ...

technical field

[0001] The present invention relates to a vehicle pneumatic tire having, in its interior, a sound-absorbing, annular inner absorber adhesively disposed at an inner surface opposite to the tread surface, wherein the inner absorber is adhered In the case of self-sealing sealants, the sealant has the adhesiveness necessary for adhesion at least immediately after application of the sealant. The present invention also relates to a method for producing the aforementioned pneumatic tire for vehicles. Background technique

[0002] A pneumatic vehicle tire of this type is known from DE 10 2007 028932 A1. The inner absorbent body is a ring of open-cell foam material which reduces air fluctuations in the tire and leads to an improved noise behavior in the vehicle. The sealant applied on the inside of the tire has two functions: the sealant isolates unwanted tire punctures in the tread area in such a way that, in the event of damage to the inner layer, the viscous seal...

Examples

Embodiment Construction

[0040]In Fig. 1 a cross section through a radial passenger car tire is shown, with a profiled tread 1, sidewalls 2, bead regions 3, bead cores 4 and multiple layers of cord belt compound 5 and carcass layer 6. At its inner face, the tire is covered with an inner layer 7 of an airtightly implemented rubber compound. At the inner surface of the inner layer 7 opposite the tread 1 is applied a sealant 8 capable of producing a self-sealing action in the event of a puncture (tire damage). Adhere to the sealant 8 is an inner absorbent body 9 which is pressed against the sealant 8 just after application of the sealant 8 (provided there is still sufficient adhesiveness), as described below. The inner absorber 9 is frequency-adapted to the tire cavity in terms of its sound-absorbing properties. In this case, the inner absorbent body 9 has, for example, an approximately elongated triangular cross-section symmetrical to the tire equator. The foam material of the inner absorber 9 is an ...

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