WO2024212886A1 - Method for improving durability characteristics of noise reduction tire, and noise reduction tire - Google Patents

Abstract

Provided are a method for improving the durability characteristics of a noise reduction tire, and a noise reduction tire, relating to the technical field of noise reduction tires. The method for improving the durability characteristics of a noise reduction tire mainly involves cutting tension relief grooves on a noise reduction material in a traditional noise reduction tire, so as to reduce the surface tension of the noise reduction material, and enhance the durability. The noise reduction tire of the present application comprises a tire body and a noise reduction component, wherein the noise reduction component is arranged within the tire to form an annular structure, and the tension relief grooves distributed along the axis of the tire body are arranged at positions of the noise reduction component corresponding to an inner edge surface of the annular structure. The noise reduction material is reasonably arranged and specially modified, so as to reduce increased tension caused by the noise reduction material, and the attachment firmness and durability characteristics of the noise reduction component can be increased without losing the noise reduction characteristics of the noise reduction component. The risk of the noise reduction material falling off is reduced.

Description

A method for improving the durability characteristics of noise reduction tire and noise reduction tire Technical Field

The invention belongs to the field of noise reduction tires, and in particular relates to a method for improving the durability characteristics of noise reduction tires and the noise reduction tires.

Background Art

Tire noise contains various components, generally from external noise and internal noise. The internal noise is caused by the contact of the tread pattern of the pneumatic tire with irregular road surface or impact from the outside when the tire is installed at high speed, which generates a large noise. If the noise generated above is transmitted inside the tire, the internal air vibrates through the tire itself, so the tire acts as a sound amplifier, and the noise will be amplified. At present, the most important factor affecting driver comfort is tire cavity noise.

At present, in order to reduce the cavity noise of tires, the tires currently sold on the market will place sound-absorbing and noise-reducing sponges in the inner cavity of the tire. Although some tires have adopted the addition of silent sponges to achieve the purpose of reducing the cavity noise of the tire, due to the inherent characteristics of the material and the influence of the tension factors generated when the sponge is adhered along the circumference of the tire, the silent sponge tires that have been coated with the sponge will have the problem of sponge falling off during the durability performance test after being subjected to strict environmental treatment such as high and low temperatures.

Summary of the invention

The present invention aims to provide a noise-reducing tire to solve at least one of the problems raised by the above-mentioned background technology.

In order to solve the above technical problems, the specific technical solutions of the present invention are as follows:

In some embodiments of the present application, a method for improving the durability characteristics of a noise reduction tire is provided, comprising the following steps:

Step 1: Remove the noise reduction tire;

Step 2: Observe the adhesion strength of the noise reduction material in the noise reduction tire;

Step 3: If the noise reduction material is well fitted and does not fall off, cut several tension relief grooves on the surface of the noise reduction material;

Step 4: If the noise reduction material is separated from the inner wall of the tire, take out the noise reduction material, cut a number of tension relief grooves on the inner edge of the noise reduction material, clean the outer edge and the inner wall of the tire after cutting, apply adhesive on the outer edge and the inner wall of the tire, fit the outer edge of the noise reduction material to the inner wall of the tire, and squeeze and let it stand;

Step 5: Install the processed noise reduction tires.

It can be seen from the above technical solution that, compared with the prior art, the beneficial effects of the present invention are:

This solution can reasonably arrange and specially process the noise reduction materials, which can improve the firmness and durability of the attachment of the noise reduction components and reduce the risk of the noise reduction materials falling off.

In another embodiment of the present application, a noise reduction tire is provided, comprising:

Tire body,

A noise reduction component is arranged inside the tire to form an annular structure. The noise reduction component is provided with tension relief grooves distributed along the axis of the tire body at positions corresponding to the inner edge surface of the annular structure.

In the preferred embodiment of the above-mentioned noise reduction tire, the noise reduction components are provided in multiple pieces, and the top plane of each noise reduction component is provided with a plurality of tension relief grooves; the bottoms of the multiple noise reduction components are fixed along the inner wall of the tire body to form an annular structure.

In the preferred embodiment of the noise reduction tire, the noise reduction component is a strip-shaped component, and a plurality of parallel tension relief grooves are formed on the top plane of the strip-shaped component; the bottom of the noise reduction component is fixed along the inner wall of the tire body to form an annular structure.

In the preferred embodiment of the above noise reduction tire,

When the number of the noise reduction components applied is n≤4, the number of the grooves distributed on each noise reduction component satisfies N, n≤N≤24;

When the number n of the noise reduction components applied is greater than 4, the number N of the grooves distributed on each noise reduction component satisfies 1≤N≤12.

In the preferred embodiment of the noise reduction tire, the spacing between the plurality of tension relief grooves is d ₀ , and the inner cavity circumference of the tire body is D; wherein,

In the preferred embodiment of the noise reduction tire, the width of the tension relief groove is d ₁ , wherein:
_{2mm≤d1≤10mm} ;

and/or the distance between the tension relief groove near the edge and the edge of the noise reduction component is d ₂ ; wherein,
_{10mm≤d2≤30mm} .

In the preferred embodiment of the noise reduction tire, the thickness of the noise reduction component is H, and the depth of the tension relief groove is h; wherein,

and/or the volume of the noise reduction component is V ₁ , the volume of the void formed by the tension relief groove is V ₂ , wherein:

In a preferred embodiment of the above noise reduction tire, the noise reduction material is made of foam material.

In a preferred embodiment of the noise reduction tire, the tension relief groove runs through two opposite ends thereof and is in a straight line shape, or a curved line shape, or a broken line shape.

It can be seen from the above technical solution that, compared with the prior art, the beneficial effects of the present invention are:

This solution can reasonably arrange and specially process the noise reduction materials to reduce the increase in tension caused by the noise reduction materials. Without losing the noise reduction characteristics of the noise reduction components, it can improve the firmness and durability of the attachment of the noise reduction components and reduce the risk of the noise reduction materials falling off.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

FIG1 is a schematic diagram of an embodiment of the present invention using multiple noise reduction materials;

FIG2 is a schematic diagram of a noise reduction material in the present invention;

FIG. 3 is a schematic diagram of an embodiment of the present invention using a single piece of noise reduction material.

In the figure:
1. Tire body; 2. Noise reduction material; 20. Tension relief groove.

DETAILED DESCRIPTION

The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

Example 1

In some embodiments of the present application, a method for improving the durability characteristics of a noise reduction tire is provided, comprising the following steps:

Step 1: Remove the noise reduction tire;

Step 2: Observe the adhesion strength of the noise reduction component 2 in the noise reduction tire;

Step 3: If the noise reduction component 2 is well fitted and does not fall off, a plurality of tension relief grooves 20 are cut on the surface of the noise reduction component 2;

Step 4: If the noise reduction component 2 is separated from the inner wall of the tire, the noise reduction component 2 is taken out, and a plurality of tension relief grooves 20 are cut on the inner edge surface of the noise reduction component 2. After the cutting is completed, the outer edge surface and the inner wall of the tire are cleaned, and adhesive is applied to the outer edge surface and the inner wall of the tire, and the outer edge surface of the noise reduction component 2 is fixed to the inner wall of the tire, and then squeezed and left to stand;

Step 5: Install the processed noise reduction tires.

It can be seen from the above technical solution that, compared with the prior art, the beneficial effects of the present invention are:

This solution can reasonably arrange and specially process the noise reduction component 2, thereby improving the firmness and durability of the attachment of the noise reduction component 2 and reducing the risk of the noise reduction component 2 falling off.

Example 2

Referring to Figures 1-3, another example of an embodiment of the present application is described, which provides a noise reduction tire, including: a tire body 1 and a noise reduction component 2; wherein the noise reduction component 2 is arranged inside the tire to form an annular structure, and the noise reduction component 2 is provided with a tension relief groove 20 distributed along the axis of the tire body 1 at a position corresponding to the inner edge surface of the annular structure.

It should be noted that the noise reduction component 2 is a prior art and can be preferably made of a foam material, which has softness and sound insulation properties.

Specifically, the tension relief groove 20 passes through two opposite ends thereof and is in a straight line shape, or a curved line shape, or a broken line shape.

It should be noted that the tension relief groove 20 is a through groove structure, which passes through the noise reduction component 2. When the noise reduction component 2 is attached along the tire body 1 and bent, the through groove structure can reduce the problem of increased surface tension of the bending caused by the noise reduction component 2, thereby improving the firmness of the attachment and extending its durability.

Example 3

Referring to FIG. 1 , based on the above-mentioned Example 2, a plurality of noise reduction components 2 are provided, and a plurality of tension relief grooves 20 are provided on the top plane of each noise reduction component 2; the bottoms of the plurality of noise reduction components 2 are fixed along the inner wall of the tire body 1 to form an annular structure.

Specifically, six noise reduction components 2 are preferably arranged and evenly attached to the inner tread of the tire. There is an installation gap between adjacent noise reduction components 2 to prevent multiple noise reduction components 2 from being squeezed, causing mutual interference and reducing the firmness of the attachment.

Example 4

Referring to FIG. 3 , based on the above-mentioned Example 2, the noise reduction component 2 is a strip-shaped component, and a plurality of parallel tension relief grooves 20 are opened on its top plane; the bottom of the noise reduction component 2 is fixed along the inner wall of the tire body 1 to form an annular structure.

Specifically, the noise reduction component 2 is a whole structure, which is evenly attached to the inner tread of the tire, and there is an installation gap between the head and tail ends to prevent the two ends of the noise reduction component 2 from being squeezed, causing mutual interference and reducing the firmness of the attachment.

Example 5

Referring to FIG. 2 , based on the above Example 2 or Example 3,

When the number of coverings of the noise reduction component 2 n≤4, the number of cut grooves N distributed on each noise reduction component 2 satisfies n≤N≤24;

When the number n of the noise reduction components 2 covered is greater than 4, the number N of the grooves distributed on each noise reduction component 2 satisfies 1≤N≤12.

Specifically, the number n of the noise reduction components 2 applied is preferably 6, and the number N of the grooves distributed on each noise reduction component 2 is preferably 4.

In the preferred solution of the above-mentioned Example 5, the spacing between the plurality of tension relief grooves 20 is d ₀ , and the inner cavity circumference of the tire body 1 is D; wherein,

Specifically, the spacing between adjacent tension relief grooves 20 is d _0, preferably

In the preferred solution of the above-mentioned Example 5, the width of the tension relief groove 20 is d ₁ , wherein:
_{2mm≤d1≤10mm} ;

and/or the distance between the tension relief groove 20 near the edge and the edge of the noise reduction component 2 is d ₂ ; wherein,
_{10mm≤d2≤30mm} .

Specifically, the width of the tension relief groove 20 is _d1, preferably 5 mm, and the distance between the tension relief groove 20 close to the edge and the edge of the noise reduction component 2 is _d2 , preferably 20 mm.

In the preferred embodiment 5 above, the thickness of the noise reduction component 2 is H, and the depth of the tension relief groove 20 is h; wherein,

The volume of the noise reduction component 2 is V ₁ , and the volume of the gap formed by the tension relief groove 20 is V ₂ , wherein:

Specifically, the thickness H of the noise reduction member 2 is preferably 5 mm, and the depth h of the tension relief groove 20 is preferably 3 mm.

It can be seen from the above technical solution that, compared with the prior art, the beneficial effects of the present invention are:

This solution can reasonably arrange and specially process the noise reduction component 2 to reduce the increase in tension caused by the noise reduction component 2. Without losing the noise reduction characteristics of the noise reduction component 2, it can improve the firmness and durability of the attachment of the noise reduction component 2 and reduce the risk of the noise reduction component 2 falling off.

In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A method for improving the durability characteristics of a noise reduction tire, characterized by comprising the following steps:

   Step 1: Remove the noise reduction tire;

   Step 2: Observe the adhesion strength of the noise reduction material in the noise reduction tire;

   Step 3: If the noise reduction material is well fitted and does not fall off, cut several tension relief grooves on the surface of the noise reduction material;

   Step 4: If the noise reduction material is separated from the inner wall of the tire, take out the noise reduction material, cut a number of tension relief grooves on the inner edge of the noise reduction material, clean the outer edge and the inner wall of the tire after cutting, apply adhesive on the outer edge and the inner wall of the tire, fit the outer edge of the noise reduction material to the inner wall of the tire, and squeeze and let it stand;

   Step 5: Install the processed noise reduction tires.
2. The noise reduction tire according to claim 1, characterized in that it comprises:

   Tire body,

   A noise reduction component is arranged inside the tire to form an annular structure. The noise reduction component is provided with tension relief grooves distributed along the axis of the tire body at positions corresponding to the inner edge surface of the annular structure.
3. According to a noise reduction tire according to claim 2, it is characterized in that the noise reduction components are provided in plurality, and a plurality of tension relief grooves are provided on the top plane of each noise reduction component; and the bottoms of the plurality of noise reduction components are fixed along the inner wall of the tire body to form an annular structure.
4. The noise reduction tire according to claim 2 is characterized in that the noise reduction component is a strip-shaped component, and a plurality of parallel tension relief grooves are opened on the top plane of the strip-shaped component; the bottom of the noise reduction component is fixed along the inner wall of the tire body to form an annular structure.
5. The noise reduction tire according to claim 3 is characterized in that:

   When the number of the noise reduction components applied is n≤4, the number of the grooves distributed on each noise reduction component satisfies N, n≤N≤24;

   When the number n of the noise reduction components applied is greater than 4, the number N of the grooves distributed on each noise reduction component satisfies 1≤N≤12.
6. The noise reduction tire according to claim 3 or 5 is characterized in that the spacing between the plurality of tension relief grooves is d ₀ , and the inner cavity circumference of the tire body is D; wherein,
   
7. The noise reduction tire according to claim 6, characterized in that the width of the tension relief groove is d ₁ , wherein:
   _{2mm≤d1≤10mm} ;

   and/or the distance between the tension relief groove near the edge and the edge of the noise reduction component is d ₂ ; wherein,
   _{10mm≤d2≤30mm} .
8. The noise reduction tire according to claim 7 is characterized in that the thickness of the noise reduction component is H, and the depth of the tension relief groove is h; wherein,
   

   and/or the volume of the noise reduction component is V ₁ , the volume of the void formed by the tension relief groove is V ₂ , wherein:
   
9. The noise reduction tire according to claim 3 or 4, characterized in that the noise reduction material is made of foam material.
10. The noise reduction tire according to claim 9 is characterized in that the tension relief groove runs through its two opposite ends and is in a straight line shape, a curved line shape, or a broken line shape.