CN216886105U

CN216886105U - Coating type pricking self-sealing silent tire

Info

Publication number: CN216886105U
Application number: CN202122174005.4U
Authority: CN
Inventors: 李炜
Original assignee: Shanghai Ongxian Machinery Equipment Co ltd
Current assignee: Shanghai Ongxian Machinery Equipment Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-07-05
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a coating type punctured self-sealing mute tire, which belongs to the field of tire production and comprises a tire body and a sound absorption layer arranged in the tire body, wherein the tire body comprises a tread part and a sidewall part, the tire further comprises a self-sealing rubber layer coated on the inner side of the tread part, the sound absorption layer comprises a sponge layer, the length of the sponge layer is matched with the inner circumference of the tire body, an accommodating space is arranged between the sponge layer and the self-sealing rubber layer, and the self-sealing rubber layer is locked through the accommodating space. The self-sealing tire has a reasonable structure and a simple principle, and the sponge layer and the self-sealing sealant layer which are matched with each other are arranged in the tire body, so that the tire forms a self-sealing protective layer, the puncture-preventing protective surface is increased, and the puncture-preventing efficiency is improved. In addition, the structural arrangement of the sponge layer can not lose the fixing force due to aging or heating, the silent effect of the tire is improved, and the service life is prolonged.

Description

Coating type pricking self-sealing silent tire

Technical Field

The utility model relates to the field of tire production, in particular to a coating type punctured self-sealing silent tire.

Background

The tire is pricked in daily life, for automobiles, the automobile can only wait for rescue or replace a spare tire in situ after the tire is pricked, if the automobile is filled with goods or in a mountainous area or desert where people are rare, the time and labor are more wasted when the tire is replaced for the rescue, a plurality of female drivers cannot replace the spare tire at ordinary times, and the safety is more influenced when the conditions occur late at night.

In the process of high-speed running of an automobile, tire noise is an important factor influencing the comfort performance of the automobile, the surface of the tire vibrates along with the unevenness of the road surface due to the contact of the tire and the road surface, the vibration enables air in a cavity in the tire to vibrate to generate resonance sound, when the resonance sound reaches a specific frequency, eardrums are pressed, human perception is uncomfortable, particularly for an economical car, the sealing in the automobile is general, and the noise is more obviously heard. Recently, new energy automobiles are particularly sensitive to noise, and because the new energy automobiles do not have diesel or gasoline engines and originally have no interference influence of the engines, the sensitivity of noise influence on tires caused by passengers sitting in the automobiles is higher, and the comfort of the passengers can be reduced due to the noise of the tires.

The anti-puncture self-repairing repair-free silent tire described in the prior patent CN201911415722.2 has a self-sealing (self-repairing) sizing material coating width of 70% -95% of the width of the innermost belt layer and a thickness of 2-10 mm. The noise reduction piece is made of mute cotton, the width of the mute cotton is 50% -80% of the width of the innermost belted layer, the thickness of the mute cotton is 5-35 mm, and the density of the mute cotton is 25-35 kg/m³The self-sealing layer is directly used as a bonding material of the mute cotton, and has 2 main problems: 1) in the later period of actual use, the rubber material can generate certain fluidity due to movement or heating, so that the displacement change of the sponge strip/block is caused, the dynamic balance of the tire is influenced, the corresponding self-sealing rubber material is driven to flow disorderly, and the self-sealing effect is weakened or loses efficacy; 2) the silence sponge does not support at the laminating in-process, can impress in the self sealss glue film, thereby bring into a certain amount of self sealss glue infiltration to the sponge inside and probably cause the self sealss effect to become invalid. 3) The self-sealing coating area is too narrow, and the anti-pricking protective surface is not enough.

In addition, there is a silence tire, the appearance is the silence sponge of the coaxial ring structure with the tire body, and both sides limit extends and supports tightly on corresponding sidewall portion to two side portions of tire body respectively to make the rigid coupling cooperation of bloated compact form between elasticity sound absorbing layer and the sidewall portion, only lean on the sponge and the outside elastic material that increases to support, similar interference fit formula rises and tightly rises inside the tire to laminate mutually with self sealss sizing material, mainly there are 2 problems: 1) in the later period of actual use, the sponge and the supporting material thereof gradually lose the elasticity and the fixing force generated by the interference fit with the sponge due to the aging or heating of the movement, so that the displacement change of the sponge strip/block is caused, and the dynamic balance of the tire is influenced; 2) after the silence sponge is ageing, can impress under the circumstances of losing the fixity in the self sealss glue film, thereby bring into a certain amount of self sealss glue and permeate the sponge inside and probably cause the self sealss effect to become invalid. Therefore, improvements in the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the coating type punctured self-sealing silent tire is provided, the silent effect of the tire is improved, and the puncture-proof protective surface of the tire is increased.

The application provides a self sealss silence tire is pricked to coating formula, include the tire body and locate this internal sound-absorbing layer of tire, the tire body includes tread portion and side wall portion, and this tire is still including coating in the inboard sealed precoat of tread portion from, the sound-absorbing layer includes the sponge layer, the length and the inside girth phase-match of tire body on sponge layer, the sponge layer with be equipped with the accommodation space from between the sealed precoat, pass through from sealed precoat the accommodation space pins.

Compared with the prior art, the coating type punctured self-sealing silent tire disclosed by the utility model has the advantages that the sponge layer with the length matched with the circumference of the inner side of the tread part and the self-sealing rubber material layer coated on the inner wall of the tread part are arranged in the tire body, and the sponge layer and the self-sealing rubber material layer are matched with each other, so that the tire forms a self-sealing protective layer, the puncture-preventing protective surface is increased, and the puncture-preventing efficiency is improved. In addition, the structural arrangement of the sponge layer can not lose the fixing force due to aging or heating, the silent effect of the tire is improved, and the service life is prolonged.

Furthermore, the containing space is a groove formed in the sponge layer, the groove is matched with the self-sealing rubber material layer, two sides of the groove surface of the sponge are attached to the inner wall of the tire body, and the self-sealing rubber material layer is locked through the groove.

Furthermore, the containing space is a containing groove formed after sponge on two sides of the containing space is bonded with the tire, and the self-sealing adhesive layer is locked through the containing groove.

Furthermore, the sponge layer is a whole section of sponge or a multi-section sponge, and can be selected according to the requirements of the tire.

Further, the width of the sponge layer is 35% -120% of the width of the tread portion, the thickness of the sponge layer is 5-50 mm, and the density of the sponge layer is 15-55 kg/m³。

Further, the sponge layer is laminated with the inner wall of the tire body through the pasting layer, and the whole section of sponge or the multi-section sponge is guaranteed to be fixed and cannot move at the corresponding position.

Furthermore, the sticking layer is a back-sticking glue layer, a single-component or double-silica-gel silica gel layer, a spraying type liquid glue layer or a self-sealing glue layer, and the sticking mode is set according to the requirement.

Further, the width of the groove is 30% -110% of the width of the tread portion, the depth of the groove is 0-45 mm, the width of the self-sealing rubber layer is 30% -110% of the width of the tread portion, and the thickness of the self-sealing rubber layer is 0.5-40 mm. The groove can perfectly lock the self-sealing glue covered at the corresponding position.

Further, the sponge layer is made of mute cotton. The noise reduction rate of the silencing cotton is high, and the cost is low.

Drawings

Fig. 1 is a schematic view of the internal structure of a coated punctured self-sealing silent tire in a first embodiment;

FIG. 2 is an enlarged view of the internal layered structure of a coated punctured self-sealing silent tire in the first embodiment;

fig. 3 is a perspective view illustrating the internal structure of a coated punctured self-sealing silent tire in a first embodiment;

fig. 4 is a schematic view of the internal structure of a coated punctured self-sealing silent tire in a second embodiment.

Reference is made to the following in corresponding reference numbers in the drawings of the specification:

tread portion 1, side wall portion 2, self sealss sizing material layer 3, sponge layer 4, recess 5, storage tank 6.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar tables are used herein for illustrative purposes only and do not represent the only embodiments.

The first embodiment of the utility model discloses a coating type punctured self-sealing silent tire, which comprises a tire body and a sound absorption layer arranged in the tire body, wherein the tire body comprises a tread part 1 and a sidewall part 2, the tire further comprises a self-sealing rubber material layer 3 coated on the inner side of the tread part 1, the sound absorption layer comprises a sponge layer 4, the length of the sponge layer 4 is matched with the inner circumference of the tire body, the sponge layer and the tire body can be equal or close, or the self-defined length (certain interference can be allowed) of the sponge layer 4 or the number of the self-defined segments and the length of each segment of the self-sealing rubber material layer, an accommodating space is arranged between the sponge layer 4 and the self-sealing rubber material layer 3, and the self-sealing rubber material layer 3 is locked through the accommodating space.

The sponge layer 4 can be whole section sponge or multistage formula sponge, can select according to the requirement of tire self, and when the sponge layer 4 was the multistage formula sponge, the sponge segment number and every section length do not do the restriction, and the cross sectional shape of sponge can be multiple pattern, can be rectangle, square, also can be other shapes. The accommodation space can be for locating recess 5 on the sponge layer, recess 5 and 3 phase-matchs in self sealss sizing material layer, and the both sides of the recess face on sponge layer 4 are laminated with tire body inner wall mutually, and self sealss sizing material layer 3 pins through recess 5, and wherein, the recess 5 shape of this embodiment is the rectangle, but not only is limited to the rectangle, and other shapes that can realize the same effect all can be replaced, for example circular, wave, rhombus etc. to the in-service use needs set for.

Specifically, the width of the sponge layer 4 is 35-120% of the width of the tread 1, the thickness is 5-50 mm, and the density is 15-55 kg/m³The width of the groove 5 is 30-110% of the width of the tread part 1, the depth is 0-45 mm, the width of the self-sealing rubber material layer 3 is 30-110% of the width of the tread, and the thickness is 0.5-40 mm. In this way the groove 5 can perfectly lock the self-sealing compound covered in the corresponding position.

In addition, the sponge layer 4 is laminated with the inner wall of the tire body through the pasting layer, namely, two sides of the 5 surfaces of the groove of the sponge layer 4 are laminated with the inner wall of the tire, and the whole sponge or the multi-section sponge is guaranteed to be fixed and cannot move at the corresponding position. The adhesive layer is a back adhesive glue layer, a single-component or double-silica gel layer, a spray-coating liquid glue layer (generally using chloroprene rubber) or a self-sealing glue layer, and the adhesive mode can be set according to the requirement.

In specific use, firstly, carrying out laser cleaning on an inner surface airtight layer of a tread part 1 of a vulcanized finished tire, mainly cleaning a residual release agent of the vulcanized tire, and carrying out dust removal (absorption) function in the whole process, wherein in the process, the width of the inner surface of the polished tread part 1 is 30-120% of the width of the tread part 1, and the cleaning laser power is 300-; coating self-sealing glue on the inner wall of the tire by using a high-pressure temperature control gluing system and matching with a robot in a manner that the tire rotates and adhesive tapes are mutually connected to form a self-sealing protective layer with the width of 30-110% of the width of the tire tread, wherein the temperature of the gluing system is controlled to be 70-180 ℃, and the gluing thickness is 0.5-40 mm; the spraying width is 30-110% of the width of the tread part 1; after self-sealing glue is coated, performing appearance inspection on the self-sealing glue; if silica gel or spray glue is used as the adhesive, a high-pressure temperature-control gluing system is used to match a robot to coat the silica gel on the inner wall of the tire, corresponding to the positions of the two sides of the groove 5 on the sponge layer 4; the mute sponge is attached to the inner wall of the tire and the reverse surface part of the tread part 1, the pinch roller rolling structure is utilized to press the mute sponge and the bonding material, and the mute sponge is attached to the self-sealing rubber material layer 3; then, waiting for the curing of the bonding material and the self-sealing glue material, and after the bonding is finished, carrying out the next action after the curing and the initial fixing of the bonding material are finished; and finally, carrying out appearance inspection, dynamic balance and other various detections on the tire.

The second embodiment of the utility model discloses a coating type punctured self-sealing silent tire, which is different from the first embodiment in that: as shown in fig. 4, the accommodating space may also be an accommodating groove 6 formed by bonding sponges on two sides of the accommodating space and the tire, the bonding material is the same as the adhesive layer in the first embodiment, and the self-sealing rubber layer 3 is locked by the accommodating groove 6.

The coating type punctured self-sealing mute tire is reasonable in structure and simple in principle, and the sponge layer 4 and the self-sealing rubber material layer 3 which are matched with each other are arranged in the tire body, so that the tire forms a self-sealing protective layer, a puncture-preventing protective surface is increased, and the puncture-preventing efficiency is improved. In addition, the sponge layer 4 is structurally arranged, so that the fixing force cannot be lost due to aging or heating, the silent effect of the tire is improved, and the service life is prolonged.

The above description has been made of specific embodiments of the present invention. It is to be understood that the utility model is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the utility model.

Claims

1. The utility model provides a self sealss silence tire is pricked to coating formula, includes the tire body and locates this internal noise absorbing layer of tire, the tire body includes tread portion and side wall portion, its characterized in that: the tire further comprises a self-sealing adhesive layer coated on the inner side of the tread portion, the sound absorption layer comprises a sponge layer, the length of the sponge layer is matched with the inner circumference of the tire body, an accommodating space is formed between the sponge layer and the self-sealing adhesive layer, and the self-sealing adhesive layer is locked through the accommodating space.

2. The coated punctured self-sealing silent tire according to claim 1, wherein: the holding space is a groove arranged on the sponge layer, the groove is matched with the self-sealing rubber material layer, two sides of the groove surface of the sponge are attached to the inner wall of the tire body, and the self-sealing rubber material layer is locked through the groove.

3. The coated punctured self-sealing silent tire according to claim 1, wherein: the containing space is a containing groove formed after sponge on two sides of the containing space is bonded with the tire, and the self-sealing adhesive layer is locked through the containing groove.

4. The coated punctured self-sealing silent tire as claimed in claim 1, wherein: the sponge layer is a whole section of sponge or a multi-section sponge.

5. The coated punctured self-sealing silent tire according to claim 1, wherein: the width of the sponge layer is 35% -120% of the width of the tread, the thickness of the sponge layer is 5-50 mm, and the density of the sponge layer is 15-55 kg/m³。

6. The coated punctured self-sealing silent tire according to claim 2, wherein: the sponge layer is attached to the inner wall of the tire body through the adhesive layer.

7. The coated punctured self-sealing silent tire according to claim 6, wherein: the adhesive layer is a back adhesive glue layer, a single-component or double-silica-gel silica gel layer, and a spray-type liquid glue material layer self-sealing glue layer.

8. The coated punctured self-sealing silent tire according to claim 2, wherein: the width of the groove is 30% -110% of the width of the tread portion, the depth of the groove is 0-45 mm, the width of the self-sealing rubber material layer is 30% -110% of the width of the tread portion, and the thickness of the self-sealing rubber material layer is 0.5-40 mm.

9. The coated punctured self-sealing silent tire according to any one of claims 1 to 8, wherein: the sponge layer is made of mute cotton.