Method for producing a vehicle tyre

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By using a polyolefin, polyester, or silicone covering component to insulate the bonding device during vulcanization, the method ensures robust connections in vehicle tires, addressing thermal stress issues and maintaining bond integrity.

WO2026153692A1PCT designated stage Publication Date: 2026-07-23CONTINENTAL REIFEN DEUTSCHLAND GMBH

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Patent Information

Authority / Receiving Office: WO · WO
Patent Type: Applications
Current Assignee / Owner: CONTINENTAL REIFEN DEUTSCHLAND GMBH
Filing Date: 2025-12-05
Publication Date: 2026-07-23

AI Technical Summary

Technical Problem

Existing methods for manufacturing vehicle tires fail to adequately protect the connecting device from undesirable thermal stress during vulcanization, leading to weak bonds with the inner tire liner and damping elements, which can't withstand mechanical stresses during normal operation.

Method used

Incorporating a covering component made of polyolefin, polyester, or silicone to insulate the material bonding component, preventing thermal effects during vulcanization and ensuring a reliable bond with the inner tire layer and damping element.

Benefits of technology

The covering component effectively shields the bonding device from thermal stress, maintaining a strong and reliable material-bonded connection between the connecting device and the tire's inner layer and damping element, enhancing tire durability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a method for producing a vehicle tyre (1), comprising at least the following steps: - providing a vehicle tyre (1), the vehicle tyre (1) being an unvulcanised vehicle tyre (1), and the vehicle tyre (1) having a tyre inner layer (4); - providing a connection device (5), the connection device (5) having an integral bond component (9), the integral bond component (9) being provided to establish an integral connection to the tyre inner layer (4), and the integral bond component (9) being provided to establish an integral connection to a damping element (8); - arranging the connection device (5) on the tyre inner layer (4), the connection device (5) having a covering component (6), the covering component (6) covering the integral bond component (9) and the covering component (6) being a polyolefin-based and / or polyester-based and / or silicone-based covering component (6).

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Description

[0001] 202406014

[0002] 1

[0003] Description

[0004] Method for manufacturing a vehicle tire

[0005] The invention relates to a method for manufacturing a vehicle tire, a method for manufacturing a vehicle tire and a vehicle tire.

[0006] The invention relates to a method for manufacturing a vehicle tire. The method comprises the following steps:

[0007] - Providing a vehicle tire, wherein the vehicle tire is an unvulcanized vehicle tire and wherein the vehicle tire has an inner tire layer;

[0008] - Providing a connecting device, wherein the connecting device has a material bonding component, wherein the material bonding component is intended to form a material bond with the inner layer of the tire, and wherein the material bonding component is intended to form a material bond with a damping element;

[0009] - Positioning the connecting device on the inner layer of the tire.

[0010] An unvulcanized vehicle tire is a tire that has not been vulcanized. An unvulcanized vehicle tire can also be referred to as a tire blank.

[0011] Methods for manufacturing a vehicle tire are known from the prior art. It is also known from the prior art that these methods comprise the following steps:

[0012] - Providing a vehicle tire, wherein the vehicle tire is an unvulcanized vehicle tire and the vehicle tire has an inner tire layer;

[0013] - Providing a joining device, wherein the joining device has a material-locking component, wherein the material-locking component is intended to form a material-locking connection.

[0014] 2

[0015] to form a connection with the inner layer of the tire and wherein the material bonding component is designed to form a material bond with a damping element;

[0016] - Positioning the connecting device on the inner layer of the tire.

[0017] The vehicle tire, for example, is a

[0018] passenger car tires, to use as a truck tire, or to use as a

[0019] Two-wheel vehicle tires.

[0020] The damping element is designed to dampen sound waves that may arise during the operation of a vehicle tire, for example, within the tire's interior. The damping element is primarily made of polyurethane.

[0021] Vehicle tires manufactured using methods known from the prior art might not be optimally designed. For example, undesirable thermal stress on the bonding device could occur during vulcanization. This undesirable thermal stress could result in a lack of a sufficiently strong bond with the inner tire liner or the damping element to withstand the mechanical stresses that would arise during normal operation of the vehicle tire.

[0022] The invention is therefore based on the objective of providing an improved method for manufacturing a vehicle tire, wherein in particular protection of a connecting device on the inner layer of the tire from undesirable thermal influences during a vulcanization process of the vehicle tire is ensured.

[0023] The problem set out in the invention is solved by the fact that the connecting device has a covering component, wherein the covering component covers the material joining component and the 202406014

[0024] 3

[0025] The cover component is a cover component based on a polyolefin and / or a polyester and / or a silicone.

[0026] In particular, the covering component covers such an area of the material bonding component that is intended to form a material bond with the damping element.

[0027] Preferably, the entire area of the material bonding component intended to form a material bond with the damping element is covered.

[0028] The inventive feature, in which the bonding device has a covering component, wherein the covering component covers the bonding component and the covering component is based on a polyolefin and / or a polyester and / or a silicone, utilizes a covering component which, due to the chemical and physical properties of the polyolefin, polyester, or silicone, is suitable for thermally insulating the bonding device in such a way as to prevent undesirable thermal effects on the bonding device during the vulcanization process of the vehicle tire. The reason for this avoidance is that a covering component based on a polyolefin and / or a polyester and / or a silicone is fundamentally suitable for withstanding the temperatures typically occurring during vulcanization, for example up to 200°C, without undergoing any changes.After vulcanization of the unvulcanized vehicle tire to a vulcanized vehicle tire, a reliable material-bonded connection of the connecting device with the inner layer of the tire is thus ensured on the one hand, and on the other hand, it is ensured that the connecting device can form a reliable material-bonded connection with the damping element.

[0029] This provides an improved process for manufacturing a vehicle tire. 202406014

[0030] 4

[0031] The invention further relates to a method for manufacturing a vehicle tire. The vehicle tire in question is, in particular, an unvulcanized vehicle tire. The method for manufacturing a vehicle tire comprises the following steps:

[0032] - Providing a tire assembly drum, wherein the tire assembly drum is intended for the manufacture of a vehicle tire;

[0033] - Providing a connecting device, wherein the connecting device has a material bonding component, wherein the material bonding component is intended to form a material bond with a tire inner layer, and wherein the material bonding component is intended to form a material bond with a damping element, and wherein the connecting device has a cover component, wherein the cover component covers the material bonding component and the cover component is a cover component based on a polyolefin and / or a polyester and / or a silicone;

[0034] - Arranging the connecting device on the tire assembly drum;

[0035] - Providing a tire inner liner material;

[0036] - Arranging the tire inner liner material on the joining device; - Providing at least one additional tire component;

[0037] - Arranging at least one additional tire component on the tire inner layer material.

[0038] The tire inner layer material forms the inner layer of the vehicle tire.

[0039] Other tire components can include, for example, a carcass, a belt and / or a tread.

[0040] In particular, the connecting device, the inner tire liner material, and the other tire components are assembled on the tire assembly drum to form a vehicle tire. 202406014

[0041] 5

[0042] In particular, the covering component covers such an area of the material bonding component that is intended to form a material bond with the damping element.

[0043] Preferably, the entire area of the material bonding component intended to form a material bond with the damping element is covered.

[0044] The invention further relates to a vehicle tire, wherein the vehicle tire has been manufactured according to a method according to the invention.

[0045] The invention further relates to a method for manufacturing a vehicle tire, wherein a vehicle tire or components for constructing a vehicle tire are provided, wherein, in addition to the vehicle tire or the components for constructing a vehicle tire, a connecting device is provided, wherein the connecting device has a material-bonding component, wherein the material-bonding component is provided to form a material-bonding connection with a tire inner layer, and wherein the material-bonding component is provided to form a material-bonding connection with a damping element, and wherein the connecting device has a cover component, wherein the cover component covers the material-bonding component and the cover component is a cover component based on a polyolefin and / or a polyester and / or a silicone.In particular, the connecting device is connected to the vehicle tire, especially to an inner layer of the vehicle tire, or to the components for constructing a vehicle tire, for example, a tire inner layer material. The components for constructing a vehicle tire preferably comprise a tire inner layer material and at least one other tire component, and preferably a tire drum. 202406014.

[0046] 6

[0047] The invention further relates to a connecting device, wherein the connecting device has a material bonding component, wherein the material bonding component is provided to form a material bond with a tire inner layer, and wherein the material bonding component is provided to form a material bond with a damping element, and wherein the connecting device has a cover component, wherein the cover component covers the material bonding component and the cover component is a cover component based on a polyolefin and / or a polyester and / or a silicone.

[0048] Further advantageous embodiments of the present invention are the subject of the dependent claims.

[0049] According to a preferred embodiment of the present invention, the covering component is designed as a nonwoven fabric or as paper.

[0050] The inventive circumstance, in which the covering component is designed as a nonwoven fabric or as paper, provides a covering component that is robust against mechanical stresses such as those that can occur during a vulcanization process.

[0051] According to a further preferred embodiment of the present invention, the covering component completely covers the material bonding component.

[0052] The covering component completely covers such an area of the material bonding component that has not already formed a material bond with the inner surface of the tire.

[0053] According to a further preferred embodiment of the present invention, the method comprises the following additional step:

[0054] - Vulcanizing the vehicle tire. 202406014

[0055] 7

[0056] Vulcanizing an unvulcanized vehicle tire creates a vulcanized vehicle tire.

[0057] According to a further preferred embodiment of the present invention, the method comprises the following additional step:

[0058] - Removal of the cover component.

[0059] The removal of the cover component is carried out in particular by means of a suitable device.

[0060] By removing the cover component, an area of the material bonding component is exposed which is intended to form a material bond with the damping element.

[0061] According to a further preferred embodiment of the present invention, the method comprises the following step:

[0062] - Arranging a damping element on the material bonding component and creating a material bond between the damping element and the material bonding component.

[0063] According to a further embodiment of the present invention, the connecting device has a support component, wherein the support component is arranged within the material joining component, and wherein the support component is made in particular partially or in particular completely of polyacrylic, polyethylene, polyvinyl chloride and / or polyethylene terephthalate.

[0064] The inventive circumstance, wherein the connecting device has a support component, the support component being arranged within the material joining component, and the support component being made, in particular partially or in particular completely, of polyacrylic, polyethylene, polyvinyl chloride and / or polyethylene terephthalate, provides such a connecting device which is resistant to mechanical 202406014

[0065] 8

[0066] It is particularly robust against stresses such as those that can occur during the operation of the vehicle tire. This further ensures that the material bond established between the connecting device and the damping element is not adversely affected or damaged by mechanical stresses such as those that can occur during normal operation of the vehicle tire.

[0067] Further advantages, features and details, which are not limited to the scope of the invention, will now be described in more detail with reference to the drawings.

[0068] It shows:

[0069] Fig. 1: a schematic representation of a method according to the invention;

[0070] Fig. 2: a schematic representation of a vehicle tire according to the invention in one embodiment;

[0071] Fig. 3: a schematic representation of a vehicle tire according to the invention in a further embodiment;

[0072] Fig. 4: a schematic representation of another method according to the invention;

[0073] Fig. 5: a schematic representation of components suitable for carrying out a method according to the invention.

[0074] Figure 1 schematically illustrates a method according to the invention for manufacturing a vehicle tire 1. The method is initiated by step A1.

[0075] In step B1, a vehicle tire 1 is provided, which is an unvulcanized vehicle tire 1 and has an inner tire layer 4. 202406014

[0076] 9

[0077] In step C1, a connecting device 5 is provided, wherein the connecting device 5 has a material bonding component 9, wherein the material bonding component 9 is intended to form a material bond with the inner tire layer 4, and wherein the material bonding component 9 is intended to form a material bond with a damping element 8.

[0078] In step D1, the connecting device 5 is arranged on the inner tire layer 4. The connecting device 5 has a cover component 6, wherein the cover component 6 covers the material bonding component 9 and the cover component 6 is a cover component 6 based on a polyolefin and / or a polyester and / or a silicone.

[0079] The procedure is completed with step E1.

[0080] Figure 2 schematically depicts a vehicle tire 1 according to the invention. The vehicle tire 1 is shown in radial section and is rotatable about an axis of rotation 2 in a direction of rotation 3. The vehicle tire 1 has an inner tire layer 4. A connecting device 5 is arranged on the inner tire layer 4. The connecting device 5 has a material bonding component 9, the material bonding component 9 being designed to form a material bond with the inner tire layer 4.

[0081] The material bonding component 9 is further intended to form a material bond with a damping element.

[0082] The connecting device 5 opens a covering component 6, wherein the covering component 6 covers the fabric-locking component 9 and the covering component 6 is a covering component 6 based on a polyolefin and / or a polyester and / or a silicone. 202406014

[0083] 10

[0084] The connecting device 5 is materially bonded to the inner tire layer 4 by means of the material bonding component 9.

[0085] Steps according to the inventive method were carried out on the vehicle tire 1.

[0086] Figure 3 schematically depicts a vehicle tire 1 according to the invention. The vehicle tire 1 is manufactured in particular according to a method according to the invention.

[0087] The vehicle tire 1 shown in Figure 3 is a vulcanized vehicle tire 1. After vulcanization of the vehicle tire 1, the cover component 6 was removed and a damping element 8 was attached to the connecting device 5. A material-bonded connection between the connecting device 5 and the inner surface of the tire 4 and with the damping element 8 was created by means of the material-bonding component 9.

[0088] According to the embodiment shown in Figure 3, the connecting device 5 has a support component 7 spatially within the material joining component 9.

[0089] Figure 4 schematically illustrates a method according to the invention for manufacturing a vehicle tire 1. The method is initiated by step A2.

[0090] In step B2, a tire assembly drum 10 is provided, the tire assembly drum 10 being intended for the manufacture of a vehicle tire 1.

[0091] In step C2, a connecting device 5 is provided, wherein the connecting device 5 has a material-locking component 9, wherein the material-locking component 9 is intended to form a material-locking connection with the tire inner layer 4, and wherein the material-locking component 9 is intended to form a material-locking connection with a 202406014

[0092] 11

[0093] damping element 9, and wherein the connecting device 5 has a cover component 6, wherein the cover component 6 covers the fabric joining component 9 and the cover component 6 is a cover component 6 based on a polyolefin and / or a polyester and / or a silicone.

[0094] In step D2, the connecting device 5 is positioned on the tire assembly drum 10.

[0095] In step E2, a tire inner layer material 11 is provided.

[0096] In step F2, the tire inner layer material 11 is arranged on the connecting device 5.

[0097] In step G2, at least one additional tire component 12 is provided.

[0098] In step H2, arrange at least one further tire component 12 on the tire inner layer material.

[0099] In particular, in step I2 the joining device 5, the inner tire layer material 11 and at least one other tire component 12 are assembled to form a vehicle tire 1.

[0100] Step J2 completes the process. 202406014

[0101] 12

[0102] Figure 5 schematically shows components suitable for carrying out a method according to the invention.

[0103] A connecting device 5, a tire inner layer material 11 and at least one further tire component 12 can be arranged on a tire assembly drum 10 according to a method according to the invention. 202406014

[0104] 13

[0105] Reference symbol list

[0106] 1 vehicle tire

[0107] 2 Rotation axis

[0108] 3. Direction of rotation

[0109] 4 tire inner layer

[0110] 5 Connecting device

[0111] 6 Cover component

[0112] 7 Carrying component

[0113] 8 damping element

[0114] 9. Material bonding component

[0115] 10 tire mounting drum

[0116] 11 Tire inner layer material

[0117] 12 At least one other tire component

Claims

202406014 14 Patent claims 1. Method for manufacturing a vehicle tire (1) comprising the following steps: - Providing a vehicle tire (1), wherein the vehicle tire (1) is an unvulcanized vehicle tire (1) and wherein the vehicle tire (1) has an inner tire layer (4); - Providing a connecting device (5), wherein the connecting device (5) has a material-bonding component (9), wherein the material-bonding component (9) is provided to form a material-bonding connection with the inner tire layer (4), and wherein the material-bonding component (9) is provided to form a material-bonding connection with a damping element (8);- Arranging the connecting device (5) on the inner tire layer (4), characterized in that the connecting device (5) has a cover component (6), wherein the cover component (6) covers the material bonding component (9) and the cover component (6) is a cover component (6) based on a polyolefin and / or a polyester and / or a silicone.

2. Method according to claim 1, characterized in that the covering component (6) is designed as a nonwoven fabric or as paper.

3. Method according to claim 1, characterized in that the covering component (6) completely covers the material bonding component (9).

4. Method according to claim 1 or 2, characterized by the further step of vulcanizing the vehicle tire (1).

5. Method according to the preceding claim, characterized by the further step of removing the covering component (6). 202406014 15 6. Method according to the preceding claim, characterized by the further step of: arranging a damping element (8) on the material bonding component (9) and creating a material bonding connection of the damping element (8) with the material bonding component (9).

7. Method according to one of the preceding claims, characterized in that the connecting device (5) has a support component (7), wherein the support component (7) is arranged within the material joining component (9), and wherein the support component (7) is formed in particular partially or in particular completely from polyacrylic, polyethylene, polyvinyl chloride and / or polyethylene terephthalate.

8. Method for manufacturing a vehicle tire (1) comprising the following steps: - Providing a tire assembly drum (10), wherein the tire assembly drum (10) is intended for the manufacture of a vehicle tire (1); - Providing a connecting device (5), wherein the connecting device (5) comprises a material bonding component (9), wherein the material bonding component (9) is designed to form a material bond with a tire inner layer (4), and wherein the material bonding component (9) is designed to form a material bond with a damping element (8), and wherein the connecting device (5) comprises a cover component (6), wherein the cover component (6) covers the material bonding component (9) and the cover component (6) is a cover component (6) based on a polyolefin and / or a polyester and / or a silicone; - Arranging the connecting device (5) on the tire assembly drum (10); - Providing a tire inner liner material (11); 202406014 16 - Arranging the tire inner layer material (11) on the connecting device (5); - Provide at least one additional tire component (12); - Arranging at least one further tire component (12) on the tire inner layer material (11).

9. Method according to the preceding claim, characterized by the further step of: joining the connecting device (5), the inner layer material of the tire (11) and the at least one further tire component (12) to form a vehicle tire (1).

10. Vehicle tires (1) manufactured in accordance with one of the preceding Claims.