WO2020218795A1 - Laminated tire sound absorption profile - Google Patents

Laminated tire sound absorption profile Download PDF

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Publication number
WO2020218795A1
WO2020218795A1 PCT/KR2020/005221 KR2020005221W WO2020218795A1 WO 2020218795 A1 WO2020218795 A1 WO 2020218795A1 KR 2020005221 W KR2020005221 W KR 2020005221W WO 2020218795 A1 WO2020218795 A1 WO 2020218795A1
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Prior art keywords
sound
tire
laminated
profile
absorbing
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PCT/KR2020/005221
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French (fr)
Korean (ko)
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주항주
최지훈
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주식회사 폼웍스
주항주
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Application filed by 주식회사 폼웍스, 주항주 filed Critical 주식회사 폼웍스
Priority to CN202080013475.8A priority Critical patent/CN113423592B/en
Publication of WO2020218795A1 publication Critical patent/WO2020218795A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B60C19/002—Noise damping elements provided in the tyre structure or attached thereto, e.g. in the tyre interior
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/1835—Rubber strips or cushions at the belt edges

Definitions

  • the present invention relates to a laminated tire sound-absorbing profile, and more particularly, by laminating a first member and a second member made of foamed foam and forming an adhesive layer between the laminated first member and the second member to absorb sound absorption and sound insulation. And a laminated tire sound-absorbing profile in which the fixing effect is improved.
  • cavity noise which is a sharp peak sound generated in a frequency band of 200 to 250 Hz during tire driving.
  • Conventional resonance noise reduction tires include a tread portion and a bead portion disposed on both sides of the tread portion, respectively, and a sidewall portion connecting the tread portion and the bead portion, wherein the tire includes a sound absorbing material disposed inside the tire, The sound-absorbing material is adhered to the inside of the tread part and is formed of a porous material.
  • a plurality of (4) grooves are formed on the sound absorbing material along the circumferential direction of the tire, so that the sound absorbing material is curved and the groove is formed in an arc shape.
  • Korean Patent Registration No. 1100065 low noise pneumatic tire has a structure in which grooves are formed at regular intervals in a single sound-absorbing profile made of foam foam, protruding protrusions are formed, or protrusions and grooves parallel in the length or width direction are formed continuously and repeatedly. .
  • the above-described conventional sound absorbing material is made of a single foamed foam, and the number of pores, that is, density must be adjusted to improve the sound absorbing property.Therefore, the fixing force of the rubber material attached to the inside of the tire is lowered due to the nature of the material formed of an open cell structure and soft. There is.
  • the object of the present invention conceived in view of these conventional problems, is to laminate a first member and a second member made of foamed foam, and form an adhesive layer between the stacked first member and the second member to provide sound absorption, sound insulation and fixing effects. It is to provide a laminated tire sound-absorbing profile that has been improved.
  • An object of the present invention described above is to provide a tire sound-absorbing profile, by laminating a first member and a second member made of foam and forming an adhesive layer between the stacked first member and the second member to absorb sound absorption, sound insulation, and fixation. This is achieved by a laminated tire sound-absorbing profile, which has an improved effect.
  • the first member is an open cell and has a density in the range of 81 to 250 kg/m 3 or a cross-cell type, and is achieved by a laminated tire sound absorption profile.
  • the second member is achieved by a laminated tire sound-absorbing profile, characterized in that it has an open cell structure and a density in the range of 20 to 80 kg/m 3 .
  • the adhesive layer is achieved by a laminated tire sound-absorbing profile, characterized in that it is formed by applying a powder or liquid resin or by laminating a film-type adhesive.
  • the adhesive layer is achieved by a laminated tire sound-absorbing profile, characterized in that the first member and the second member are formed by high-frequency fusion.
  • the first member and the second member or both of the first member and the second member are achieved by a stacked tire sound-absorbing profile, characterized in that the marking line is formed at the end.
  • the laminated tire sound-absorbing profile characterized in that the inclined surface portion is formed at the ends of the first member and the second member.
  • the second member is achieved by a laminated tire sound-absorbing profile, characterized in that the adhesive tape is further installed so as to be attached to the tire.
  • the first member and the second member made of foam are stacked, and an adhesive layer is formed between the stacked first member and the second member to improve sound absorption, sound insulation, and fixing power. It is a useful invention.
  • 1 is an exemplary view showing an installation state of the present inventors sound absorption profile.
  • Figure 2 is a perspective view showing the structure of a laminated tire sound-absorbing profile to which the technology of the present invention is applied.
  • Figure 3 is a cross-sectional view showing the structure of a laminated tire sound-absorbing profile to which the technology of the present invention is applied.
  • FIG. 1 is an exemplary view showing an installation state of a sound-absorbing profile according to the present invention
  • FIG. 2 is a perspective view showing the structure of a profile for sound-absorbing a laminated tire to which the technology of the present invention is applied
  • FIG. 3 is a sound-absorbing laminated tire to which the technology of the present invention is applied.
  • the sound-absorbing profile of the present invention according to this is as shown in the drawing, the tire sound absorbing material 1 according to the present invention is disposed inside the pneumatic tire 10 to It is to reduce the noise of the tire 10 by absorbing and reducing the generated resonance sound.
  • an adhesive may be applied to the bottom of the first member 2 to be attached, or a double-sided tape may be used for attachment and installation.
  • the tire sound absorbing material 1 includes a bead portion 30 disposed on both sides of the tread portion 20 and the tread portion 20, and a side wall connecting the tread portion 20 and the bead portion 30 It is disposed inside the pneumatic tire 10 including the portion 40, and the outer surface is bonded to and fixed to the tread portion 20.
  • the tire sound absorbing material 1 is a first member (2) having a foamed polyurethane foam form that is elongated in the front-rear direction in the tire sound-absorbing material of an open cell structure by reacting polyol and isocyanate (Isocyanate). ) And the second member (3), wherein the first member (2) and the second member (3) are stacked, and an adhesive layer (4) is formed between the first member (2) and the second member (3). It is a structure made of structure.
  • the first member 2 is open while the cell density of 81 ⁇ 250kg / m 3, hardness (ILD25%) 80 ⁇ 200kgf / 314cm 2, a tensile strength of 2.5kgf / cm 2 or more, elongation more than 80%, the elastic modulus at least 23% Property Open cell structure having a range or hardness (ILD 25%) 100-250kgf/314cm 2 , tensile strength 3kgf/cm 2 or more, elongation 50% or more, elasticity 22% or more, and a cross-cell type having a physical property range, that the second member is an open cell structure, yet density 20 ⁇ 80 kg / m 3, hardness (ILD 25%) 10 to 50kgf / 314cm 2, a tensile strength of at least 0.5 ⁇ 2.2kgf / cm 2, an elongation greater than 200%, 15% seongyul use.
  • the density of the first member 2 and the second member 3 are different from each other, but it may be formed of foamed foam having the same density.
  • the adhesive layer 4 may be formed by applying powder or liquid resin, or may be formed by laminating an adhesive in the form of a film.
  • the adhesive for forming the adhesive layer 4 can obtain a sound insulation effect. Meanwhile, since the adhesive surfaces are attached to each other during high-frequency bonding, the sound insulation effect is increased rather than the sound absorption effect. In addition, when the adhesive layer 4 is used as a film-type adhesive, preferably a double-sided tape, the sound insulation effect is more effective than the sound absorption effect. Is increased.
  • Figure 4 is a perspective view showing another embodiment of the present invention, and can be used by forming marking lines 6 at both ends of the body, and the marking lines 6 are circularly formed along the inner surface of the tire After folding, when connecting the ends, the advantage of being able to confirm that the center is aligned with the naked eye can be provided.
  • the reason for the installation so that the distance between the end faces is spaced apart by 1 to 5 cm is to prevent the sound absorbing material from shrinking and expanding due to heat energy transmitted by the rotation of the tire.
  • an adhesive tape may be further installed and used on the second member to be attached to the tire, and the adhesive tape has a structure in which a release paper is attached.
  • the first member is an open cell structure with a density of 90kg/m 3 , hardness (ILD 25%) 100kgf/314cm 2 , tensile strength 3kgf/cm 2 , elongation of 100% or more, and elastic modulus of 25%, and is 157mm in width, 37mm in length, and 2350mm in length. .
  • the second member has an open cell structure with a density of 30kg/m 3 , hardness (ILD 25%) 14kgf/314cm 2 , tensile strength 2.2kgf/cm 2 , elongation 250%, and elastic modulus 27%, and is 157mm wide, 37mm long, and 2350m long.
  • the adhesive is an acrylic film (liquid) adhesive having a thickness of 140 ⁇ m.
  • the first member is the same as in Example 1, and the second member is an open cell structure with a density of 50kg/m 3 , hardness (ILD 25%) 14kgf/314cm 2 , tensile strength 2.2kgf/cm 2 , elongation 250%, and elastic modulus 27%. It is 157mm wide, 37mm long, and 2350mm long.
  • the adhesive is an acrylic film (liquid) adhesive having a thickness of 140 ⁇ m.

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

Abstract

The present invention relates to a laminated tire sound absorption profile and, more specifically, the laminated tire sound absorption profile is characterized in that a first member and a second member made of foam are laminated, and a bonding layer is formed between the laminated first and second members, thereby improving sound absorption, sound insulation, and fixing effects.

Description

적층형 타이어 흡음용 프로파일Profile for sound absorption of laminated tires
본 발명은 적층형 타이어 흡음용 프로파일에 관한 것으로, 보다 상세하게는 발포폼으로 이루어진 제1부재와 제2부재를 적층시키고 상기 적층된 제1부재와 제2부재의 사이에 접착층을 형성시켜 흡음, 차음 및 고정 효과가 향상되도록 한 적층형 타이어 흡음용 프로파일에 관한 것이다.The present invention relates to a laminated tire sound-absorbing profile, and more particularly, by laminating a first member and a second member made of foamed foam and forming an adhesive layer between the laminated first member and the second member to absorb sound absorption and sound insulation. And a laminated tire sound-absorbing profile in which the fixing effect is improved.
일반적으로 차량의 주행 중 타이어에서 발생되는 소음의 하나로, 타이어 주행 중 200 ~ 250Hz 주파수 대역에서 발생하는 날카로운 피크음인 공명음(Cavity noise)이 알려져 있다.In general, as one of the noises generated from tires during driving of a vehicle, cavity noise, which is a sharp peak sound generated in a frequency band of 200 to 250 Hz during tire driving, is known.
이에, 종래에는 차량 주행 중 타이어에서 발생되는 공명음을 저감할 수 있는 여러 종류의 타이어가 알려져 있다. 그 일예로 대한민국 특허등록 제1473850호의 “공명음 저감 타이어”(이하, “종래의 공명음 저감 타이어”라 한다.)를 살펴보면 다음과 같다.Accordingly, various types of tires are known that can reduce the resonance sound generated by the tire while driving a vehicle. As an example, a look at “Resonance Noise Reduction Tire” (hereinafter referred to as “Conventional Resonance Noise Reduction Tire”) of Korean Patent Registration No. 1473850 is as follows.
종래의 공명음 저감 타이어는 트레드부와 상기 트레드부의 양측에 각각 배치되는 비드부와, 상기 트레드부와 상기 비드부를 연결하는 측벽부를 포함하는 타이어에 있어서, 상기 타이어 내부에 배치되는 흡음재를 포함하며, 상기 흡음재는 상기 트레드부 내측에 접착되며 다공질 재질로 형성되는 것이다. 그리고 상기 흡음재의 상부에는 타이어의 원주방향을 따라 홈이 다수 개(4개) 형성되어 흡음재 상부는 굴곡지게 형성되고, 홈은 원호형상으로 형성된다.Conventional resonance noise reduction tires include a tread portion and a bead portion disposed on both sides of the tread portion, respectively, and a sidewall portion connecting the tread portion and the bead portion, wherein the tire includes a sound absorbing material disposed inside the tire, The sound-absorbing material is adhered to the inside of the tread part and is formed of a porous material. In addition, a plurality of (4) grooves are formed on the sound absorbing material along the circumferential direction of the tire, so that the sound absorbing material is curved and the groove is formed in an arc shape.
한편 대한민국 특허등록 제1100065호 저소음 공기 타이어는 발포 폼으로 이루어진 단일의 흡음용 프로파일에 일정한 간격으로 홈을 형성하거나 돌출된 돌기를 형성하거나 길이 또는 폭 방향으로 나란한 돌기와 홈을 연속반복 되게 형성한 구조이다.On the other hand, Korean Patent Registration No. 1100065 low noise pneumatic tire has a structure in which grooves are formed at regular intervals in a single sound-absorbing profile made of foam foam, protruding protrusions are formed, or protrusions and grooves parallel in the length or width direction are formed continuously and repeatedly. .
상기한 종래 흡음재는 단일의 발포 폼으로 이루어져 있으며 흡음성을 향상시키기 위해 포어의 수 즉, 밀도를 조절하여야 함으로 오픈셀 구조이면서 연질로 형성되는 재질의 특성상 고무재의 타이어 내측에 부착하는 고정력이 저하되는 문제가 있다.The above-described conventional sound absorbing material is made of a single foamed foam, and the number of pores, that is, density must be adjusted to improve the sound absorbing property.Therefore, the fixing force of the rubber material attached to the inside of the tire is lowered due to the nature of the material formed of an open cell structure and soft. There is.
이러한 종래 문제점을 감안하여 안출한 본 발명의 목적은 발포폼으로 이루어진 제1부재와 제2부재를 적층시키고 상기 적층된 제1부재와 제2부재의 사이에 접착층을 형성시켜 흡음, 차음 및 고정 효과가 향상되도록 한 적층형 타이어 흡음용 프로파일을 제공하는데에 있다.The object of the present invention, conceived in view of these conventional problems, is to laminate a first member and a second member made of foamed foam, and form an adhesive layer between the stacked first member and the second member to provide sound absorption, sound insulation and fixing effects. It is to provide a laminated tire sound-absorbing profile that has been improved.
상기한 본 발명의 목적은 타이어 흡음용 프로파일에 있어서, 발포폼으로 이루어진 제1부재와 제2부재를 적층시키고 상기 적층된 제1부재와 제2부재의 사이에 접착층을 형성시켜 흡음, 차음 및 고정 효과가 향상되도록 한 적층형 타이어 흡음용 프로파일에 의하여 달성된다.An object of the present invention described above is to provide a tire sound-absorbing profile, by laminating a first member and a second member made of foam and forming an adhesive layer between the stacked first member and the second member to absorb sound absorption, sound insulation, and fixation. This is achieved by a laminated tire sound-absorbing profile, which has an improved effect.
상기 제1부재는 오픈셀이면서 81~250kg/m3 범위의 밀도를 갖거나 또는 크로스셀 타입인 것을 특징으로 하는 적층형 타이어 흡음용 프로파일에 의하여 달성된다.The first member is an open cell and has a density in the range of 81 to 250 kg/m 3 or a cross-cell type, and is achieved by a laminated tire sound absorption profile.
상기 제2부재는 오픈셀 구조이면서 20~80kg/m3 범위의 밀도를 갖는 것을 특징으로 하는 적층형 타이어 흡음용 프로파일에 의하여 달성된다.The second member is achieved by a laminated tire sound-absorbing profile, characterized in that it has an open cell structure and a density in the range of 20 to 80 kg/m 3 .
상기 접착층은 분말 또는 액상 수지를 도포하여 형성하거나 또는 필름형태의 접착제를 적층시켜 형성한 것을 특징으로 하는 적층형 타이어 흡음용 프로파일에 의하여 달성된다.The adhesive layer is achieved by a laminated tire sound-absorbing profile, characterized in that it is formed by applying a powder or liquid resin or by laminating a film-type adhesive.
상기 접착층은 제1부재와 제2부재를 고주파 융착하여 형성시킨 것을 특징으로 하는 적층형 타이어 흡음용 프로파일에 의하여 달성된다.The adhesive layer is achieved by a laminated tire sound-absorbing profile, characterized in that the first member and the second member are formed by high-frequency fusion.
상기 제1부재 및 제2부재 또는 제1부재와 제2부재 모두 끝단부에 마킹선이 형성되어 이루어진 것을 특징으로 하는 적층형 타이어 흡음용 프로파일에 의하여 달성된다.The first member and the second member or both of the first member and the second member are achieved by a stacked tire sound-absorbing profile, characterized in that the marking line is formed at the end.
상기 제1부재 및 제2부재의 끝단부에 경사면부를 형성한 것을 특징으로 하는 적층형 타이어 흡음용 프로파일에 의하여 달성된다.It is achieved by the laminated tire sound-absorbing profile, characterized in that the inclined surface portion is formed at the ends of the first member and the second member.
상기 제2부재에는 타이어에 부착할 수 있도록 접착테이프가 더 설치되어 이루어진 것을 특징으로 하는 적층형 타이어 흡음용 프로파일에 의하여 달성된다.The second member is achieved by a laminated tire sound-absorbing profile, characterized in that the adhesive tape is further installed so as to be attached to the tire.
이와 같은 본 발명은 발포폼으로 이루어진 제1부재와 제2부재를 적층시키고 상기 적층된 제1부재와 제2부재의 사이에 접착층을 형성시켜 흡음, 차음 및 고정 력이 향상되도록 하는 등의 효과가 있는 유용한 발명이다.In the present invention, the first member and the second member made of foam are stacked, and an adhesive layer is formed between the stacked first member and the second member to improve sound absorption, sound insulation, and fixing power. It is a useful invention.
도 1은 본 발명인 흡음용 프로파일의 설치상태를 보여주는 예시도.1 is an exemplary view showing an installation state of the present inventors sound absorption profile.
도 2는 본 발명의 기술이 적용된 적층형 타이어 흡음용 프로파일의 구조를 보여주는 사시도.Figure 2 is a perspective view showing the structure of a laminated tire sound-absorbing profile to which the technology of the present invention is applied.
도 3은 본 발명의 기술이 적용된 적층형 타이어 흡음용 프로파일의 구조를 보여주는 단면도.Figure 3 is a cross-sectional view showing the structure of a laminated tire sound-absorbing profile to which the technology of the present invention is applied.
도 4 및 도 5는 본 발명의 다른 실시예를 보여주는 사시도.4 and 5 are perspective views showing another embodiment of the present invention.
이하 본 발명의 바람직한 실시예를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
첨부도면 도 1은 본 발명인 흡음용 프로파일의 설치상태를 보여주는 예시도이고 도 2는 본 발명의 기술이 적용된 적층형 타이어 흡음용 프로파일의 구조를 보여주는 사시도이며 도 3은 본 발명의 기술이 적용된 적층형 타이어 흡음용 프로파일의 구조를 보여주는 단면도로써 이에 따른 본 발명의 흡음용 프로파일은 도면에 도시된 바와 같이, 본 발명에 따른 타이어 흡음재(1)는 공기 타이어(10)의 내부에 배치되어 차량의 주행 중 타이어에서 발생되는 공명음을 흡음하여 저감시켜 타이어(10)의 소음을 줄이는 것이다. Attached drawings FIG. 1 is an exemplary view showing an installation state of a sound-absorbing profile according to the present invention, and FIG. 2 is a perspective view showing the structure of a profile for sound-absorbing a laminated tire to which the technology of the present invention is applied, and FIG. 3 is a sound-absorbing laminated tire to which the technology of the present invention is applied. As a cross-sectional view showing the structure of the profile, the sound-absorbing profile of the present invention according to this is as shown in the drawing, the tire sound absorbing material 1 according to the present invention is disposed inside the pneumatic tire 10 to It is to reduce the noise of the tire 10 by absorbing and reducing the generated resonance sound.
상기 본 발명의 타이어 흡음재(1)는 공기 타이어(10)의 내부에 부착 설치시 상기 제1부재(2)의 저면에 접착제를 도포하여 부착시킬 수도 있고 양면 테이프를 사용하여 부착 설치할 수도 있다.When the tire sound-absorbing material 1 of the present invention is attached and installed inside the pneumatic tire 10, an adhesive may be applied to the bottom of the first member 2 to be attached, or a double-sided tape may be used for attachment and installation.
즉 본 발명에 따른 타이어 흡음재(1)는 트레드부(20)와 트레드부(20)의 양측에 각각 배치되는 비드부(30) 및 트레드부(20)와 상기 비드부(30)를 연결하는 측벽부(40)를 포함하는 공기 타이어(10)의 내부에 배치되는 것으로, 외측면이 트레드부(20)에 접착되어 고정되는 것이다.That is, the tire sound absorbing material 1 according to the present invention includes a bead portion 30 disposed on both sides of the tread portion 20 and the tread portion 20, and a side wall connecting the tread portion 20 and the bead portion 30 It is disposed inside the pneumatic tire 10 including the portion 40, and the outer surface is bonded to and fixed to the tread portion 20.
이러한 본 발명에 따른 타이어 흡음재(1)는 폴리올(polyol)과 이소시아네이트(Isocyanate)를 반응시켜 오픈셀 구조의 타이어 흡음재에 있어서, 전후 방향으로 길게 형성되는 발포 폴리우레탄 폼 형태를 갖는 제1부재(2)와 제2부재(3)로 대별되되 상기 제1부재(2)와 제2부재(3)가 적층되며 제1부재(2)와 제2부재(3) 사이에는 접착층(4)을 형성한 구조로 이루어진 구조이다. The tire sound absorbing material 1 according to the present invention is a first member (2) having a foamed polyurethane foam form that is elongated in the front-rear direction in the tire sound-absorbing material of an open cell structure by reacting polyol and isocyanate (Isocyanate). ) And the second member (3), wherein the first member (2) and the second member (3) are stacked, and an adhesive layer (4) is formed between the first member (2) and the second member (3). It is a structure made of structure.
상기 제1부재(2)는 오픈셀이면서 밀도 81~250kg/m3, 경도(ILD25%) 80~200kgf/314cm2, 인장강도 2.5kgf/cm2 이상, 신장율 80% 이상, 탄성율 23% 이상 물성 범위를 갖는 오픈셀 구조이거나 또는 경도(ILD 25%) 100~250kgf/314cm2, 인장강도 3kgf/cm2 이상, 신장율 50% 이상, 탄성율 22% 이상 물성 범위를 갖는 크로스셀 타입으로 이루어지고, 상기 제2부재는 오픈셀 구조이면서 밀도 20~80 kg/m3, 경도(ILD 25%) 10 내지 50kgf/314cm2, 인장강도 0.5~2.2kgf/cm2, 신장율 200% 이상, 성율 15% 이상의 것을 사용한다.The first member 2 is open while the cell density of 81 ~ 250kg / m 3, hardness (ILD25%) 80 ~ 200kgf / 314cm 2, a tensile strength of 2.5kgf / cm 2 or more, elongation more than 80%, the elastic modulus at least 23% Property Open cell structure having a range or hardness (ILD 25%) 100-250kgf/314cm 2 , tensile strength 3kgf/cm 2 or more, elongation 50% or more, elasticity 22% or more, and a cross-cell type having a physical property range, that the second member is an open cell structure, yet density 20 ~ 80 kg / m 3, hardness (ILD 25%) 10 to 50kgf / 314cm 2, a tensile strength of at least 0.5 ~ 2.2kgf / cm 2, an elongation greater than 200%, 15% seongyul use.
물론 상기 설명에서 제1부재(2)와 제2부재(3)의 밀도가 서로 다른 것으로 설명하고 있으나 같은 밀도를 갖는 발포폼으로 형성시켜 사용할 수도 있다. 한편 상기 접착층(4)은 분말 또는 액상 수지를 도포하여 형성하거나 또는 필름형태의 접착제를 적층시켜 형성할 수 있다.Of course, in the above description, it is described that the density of the first member 2 and the second member 3 are different from each other, but it may be formed of foamed foam having the same density. Meanwhile, the adhesive layer 4 may be formed by applying powder or liquid resin, or may be formed by laminating an adhesive in the form of a film.
상기 접착층(4)을 형성시키는 접착제는 차음의 효과를 얻을 수 있게 된다. 한편 고주파 접착시에도 접착면이 서로 부착되기 때문에 흡음의 효과 보다는 차음의 효과가 증대시키게 되며 또한 상기 접착층(4)을 필름형태의 접착제, 바람직하게는 양면테이프를 사용할 경우 흡음의 효과보다는 차음의 효과가 증대된다.The adhesive for forming the adhesive layer 4 can obtain a sound insulation effect. Meanwhile, since the adhesive surfaces are attached to each other during high-frequency bonding, the sound insulation effect is increased rather than the sound absorption effect. In addition, when the adhesive layer 4 is used as a film-type adhesive, preferably a double-sided tape, the sound insulation effect is more effective than the sound absorption effect. Is increased.
한편 첨부도면 도 4는 본 발명의 다른 실시예를 보여주는 사시도로써 몸체의 양 끝단에 마킹선(6)을 형성시켜 사용할 수 있으며 상기 마킹선(6)은 본 발명의 흡음재를 타이어 내면을 따라 원형으로 절첩한 후 끝단부를 연결시 중심이 일치하였는지를 육안으로 정렬하였음을 확인할 수 있는 이점을 제공 받을 수 있다.On the other hand, the accompanying drawings Figure 4 is a perspective view showing another embodiment of the present invention, and can be used by forming marking lines 6 at both ends of the body, and the marking lines 6 are circularly formed along the inner surface of the tire After folding, when connecting the ends, the advantage of being able to confirm that the center is aligned with the naked eye can be provided.
또한 첨부도면 도 5에 도시된 바와 같이 상기 몸체의 길이 방향의 끝단에 경사면을 형성하고 상기 경사면(7)에 마킹선(6)을 형성시키되 타이어 내측에 본 발명의 타이어 흡음용 프로파일을 설치하였을 때 상기 마킹선(6)이 형성된 끝단면의 거리가 1~5cm 간격으로 이격되도록 설치한다.In addition, as shown in the accompanying drawings, when an inclined surface is formed at the end of the body in the longitudinal direction and a marking line 6 is formed on the inclined surface 7, but the tire sound-absorbing profile of the present invention is installed inside the tire It is installed so that the distance of the end surface on which the marking line 6 is formed is spaced at intervals of 1 to 5 cm.
상기 끝단면의 거리가 1~5cm 간격으로 이격되도록 설치하는 이유는 타이어의 회전에 의해 전달되는 열에너지에 의해 흡음재가 수축팽창 되어 변형되는 것을 방지하기 위함이다.The reason for the installation so that the distance between the end faces is spaced apart by 1 to 5 cm is to prevent the sound absorbing material from shrinking and expanding due to heat energy transmitted by the rotation of the tire.
더불어 상기 제2부재에는 타이어에 부착할 수 있도록 접착테이프를 더 설치되어 사용할 수 있으며, 상기 접착테이프는 이형지가 부착되어 있는 구조이다.In addition, an adhesive tape may be further installed and used on the second member to be attached to the tire, and the adhesive tape has a structure in which a release paper is attached.
상기한 본 발명의 구조로 이루어진 프로파일을 설치한 후 실험을 통하여 흡음력과 고정력을 측정하였더니 아래와 같았다.After installing the profile consisting of the structure of the present invention, the sound absorbing power and the fixing power were measured through an experiment, and the results were as follows.
[비교예][Comparative Example]
밀도 30kg/m3, 경도(ILD 25%) 16kgf/314cm2, 인장강도 2.2kgf/cm2, 신장율 250% 이상, 탄성율 27%인 오픈셀 구조이며 단일체로써 가로 157mm, 세로 37mm, 길이 2350mm이다.Density 30kg/m 3 , hardness (ILD 25%) 16kgf/314cm 2 , tensile strength 2.2kgf/cm 2 , elongation more than 250%, elastic modulus 27%, open cell structure, 157mm in width, 37mm in length, and 2350mm in length as a single body.
[실시예 1][Example 1]
제1부재는 밀도 90kg/m3, 경도(ILD 25%) 100kgf/314cm2, 인장강도 3kgf/cm2, 신장율 100% 이상, 탄성율 25%인 오픈셀 구조이며 가로 157mm, 세로 37mm, 길이 2350mm이다.The first member is an open cell structure with a density of 90kg/m 3 , hardness (ILD 25%) 100kgf/314cm 2 , tensile strength 3kgf/cm 2 , elongation of 100% or more, and elastic modulus of 25%, and is 157mm in width, 37mm in length, and 2350mm in length. .
제2부재는 밀도 30kg/m3, 경도(ILD 25%) 14kgf/314cm2, 인장강도 2.2kgf/cm2, 신장율 250%, 탄성율 27%인 오픈셀 구조이며 가로 157mm, 세로 37mm, 길이 2350m이다. 접착제는 140㎛ 두께를 갖는 아크릴재의 필름형(액상의) 접착제이다.The second member has an open cell structure with a density of 30kg/m 3 , hardness (ILD 25%) 14kgf/314cm 2 , tensile strength 2.2kgf/cm 2 , elongation 250%, and elastic modulus 27%, and is 157mm wide, 37mm long, and 2350m long. . The adhesive is an acrylic film (liquid) adhesive having a thickness of 140 µm.
[실시예 2][Example 2]
제1부재는 실시예1과 동일하고 제2부재는 밀도 50kg/m3, 경도(ILD 25%) 14kgf/314cm2, 인장강도 2.2kgf/cm2, 신장율 250%, 탄성율 27%인 오픈셀 구조이며 가로 157mm, 세로 37mm, 길이 2350mm이다. 접착제는 140㎛ 두께를 갖는 아크릴재의 필름형(액상의) 접착제이다.The first member is the same as in Example 1, and the second member is an open cell structure with a density of 50kg/m 3 , hardness (ILD 25%) 14kgf/314cm 2 , tensile strength 2.2kgf/cm 2 , elongation 250%, and elastic modulus 27%. It is 157mm wide, 37mm long, and 2350mm long. The adhesive is an acrylic film (liquid) adhesive having a thickness of 140 µm.
고정 실험방법 KS k ISO 24345Fixed test method KS k ISO 24345
흡음 실험방법 KS F 2814-2Sound absorption test method KS F 2814-2
인장 실험방법 KS M ISO1798Tensile test method KS M ISO1798
접착력(kgf/25mm)Adhesion (kgf/25mm) 흡음율(%)Sound absorption rate (%) 인장(kgf/cm2)Tensile (kgf/cm 2 )
비교예 Comparative example 0.610.61 2.22.2
본 발명 The present invention 실시예1Example 1 1.81.8 0.630.63 2.72.7
실시예2Example 2 22 0.660.66 2.72.7
이상에서 본 발명의 바람직한 실시예를 설명하였으나, 본 발명은 다양한 변화와 변경 및 균등물을 사용할 수 있다. 본 발명은 상기 실시예를 적절히 변형하여 동일하게 응용할 수 있음이 명확하다. 따라서 상기 기재 내용은 하기 특허청구범위의 한계에 의해 정해지는 발명의 범위를 한정하는 것이 아니다.한편, 본 발명의 상세한 설명에서는 구체적인 실시 예에 관해서 설명하였으나, 본 발명의 범위에서 벗어나지 않는 한도 내에서 여러 가지 변형이 가능함을 당해 분야에서 통상의 지식을 가진 자에게 있어서 자명하다 할 것이다.Although the preferred embodiment of the present invention has been described above, the present invention can use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Therefore, the above description is not intended to limit the scope of the invention determined by the limits of the following claims. On the other hand, in the detailed description of the present invention, specific embodiments have been described, but within the limits not departing from the scope of the invention. It will be apparent to those of ordinary skill in the art that various modifications are possible.
[부호의 설명][Explanation of code]
1 : 타이어 흡음재 1: tire sound absorbing material
2 : 제1부재2: first member
3 : 제2부재 3: second member
4 : 접착층4: adhesive layer
6 : 마킹선 6: marking line
7 : 경사면7: slope
10 : 공기 타이어 10: pneumatic tire
20 : 트레드부20: tread part
30 : 비드부 30: bead part
40 : 측벽부40: side wall part

Claims (4)

  1. 타이어 흡음용 프로파일에 있어서,In the tire sound absorption profile,
    발포폼으로 이루어진 제1부재와 제2부재를 적층시키고 상기 적층된 제1부재와 제2부재의 사이에 접착층을 형성시켜 흡음, 차음 및 고정 효과가 향상되도록 한것이며,The first member and the second member made of foam are stacked and an adhesive layer is formed between the stacked first member and the second member to improve sound absorption, sound insulation and fixing effects,
    상기 제1부재의 경도(ILD25%) 80~200kgf/314cm2 및 인장강도 2.5kgf/cm2 이상은 상기 제2부재의 경도(ILD 25%) 10 내지 50kgf/314cm2 및 인장강도 0.5~2.2kgf/cm2 보다도 높으며,The hardness (ILD25%) of the first member is 80 to 200kgf/314cm 2 and the tensile strength of 2.5kgf/cm 2 or more is the hardness of the second member (ILD 25%) 10 to 50kgf/314cm 2 and the tensile strength is 0.5 to 2.2kgf higher than /cm 2 ,
    상기 제1부재 및 제2부재의 끝단부의 경사면에 마킹선을 형성시키되 타이어 내측에 상기 타이어 흡음용 프로파일을 설치하였을 때 상기 마킹선이 형성된 끝단면의 거리가 1~5cm 간격으로 이격되도록 설치하여 타이어의 회전에 의해 전달되는 열에너지에 의해 흡음재가 수축팽창 되어 변형되는 것을 방지하는 것을 특징으로 하는 적층형 타이어 흡음용 프로파일.When a marking line is formed on the inclined surface of the ends of the first member and the second member, but when the tire sound-absorbing profile is installed inside the tire, the tire is installed so that the distance of the end surface on which the marking line is formed is spaced at intervals of 1 to 5 cm. A laminated tire sound-absorbing profile, characterized in that it prevents the sound-absorbing material from shrinking and expanding due to thermal energy transmitted by the rotation of.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 접착층은 분말 또는 액상 수지를 도포하여 형성하거나 또는 필름형태의 접착제를 적층시켜 형성한 것을 특징으로 하는 적층형 타이어 흡음용 프로파일.The adhesive layer is a laminated tire sound-absorbing profile, characterized in that formed by applying powder or liquid resin or by laminating an adhesive in the form of a film.
  3. 제 1 항에 있어서,The method of claim 1,
    상기 접착층은 제1부재와 제2부재를 고주파 융착하여 형성시킨 것을 특징으로 하는 적층형 타이어 흡음용 프로파일.The adhesive layer is a laminated tire sound-absorbing profile, characterized in that formed by high-frequency fusion bonding the first member and the second member.
  4. 제 1 항에 있어서,The method of claim 1,
    상기 제1부재에는 타이어에 부착할 수 있도록 접착테이프가 더 설치되어 이루어진 것을 특징으로 하는 적층형 타이어 흡음용 프로파일.A laminated tire sound-absorbing profile, characterized in that the first member is further provided with an adhesive tape to be attached to the tire.
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