WO2016027723A1 - 騒音低減装置及びそれを備えた空気入りタイヤ - Google Patents
騒音低減装置及びそれを備えた空気入りタイヤ Download PDFInfo
- Publication number
- WO2016027723A1 WO2016027723A1 PCT/JP2015/072675 JP2015072675W WO2016027723A1 WO 2016027723 A1 WO2016027723 A1 WO 2016027723A1 JP 2015072675 W JP2015072675 W JP 2015072675W WO 2016027723 A1 WO2016027723 A1 WO 2016027723A1
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- WIPO (PCT)
- Prior art keywords
- band member
- noise reduction
- reduction device
- band
- tire
- Prior art date
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
-
- 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
- B60C5/00—Inflatable pneumatic tyres or inner tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/133—Noise
Definitions
- the present invention relates to a noise reduction device mounted on an inner surface of a tire and a pneumatic tire including the same, and more specifically, it is possible to suppress a temperature increase of a band member during traveling and to improve high-speed durability.
- the present invention relates to a noise reduction device and a pneumatic tire including the same.
- one of the causes of noise is cavity resonance due to vibration of air filled inside the tire.
- the cavity resonance sound is generated when the tread portion vibrates due to road surface irregularities when the tire rolls, and the vibration of the tread portion vibrates the air inside the tire.
- a sound absorbing material in a cavity formed between a tire and a wheel rim. More specifically, a noise reduction device in which a sound-absorbing material made of a porous material is joined to a band member made of a thermoplastic resin formed in an annular shape along the tire inner surface, and the elastic recovery of the band member is made. A sound absorbing material is installed in a region corresponding to the tread portion on the inner surface of the tire using force (see, for example, Patent Documents 1 and 2).
- the band member is made of a thermoplastic resin in the noise reduction device described above, when the pneumatic tire generates heat during traveling, the heat is propagated from the inner surface of the tire and the yield strength of the band member decreases. When the traveling speed increases with the yield strength of the band member lowered and the centrifugal force applied to the band member becomes extremely large, there is a concern that the band member may be deformed and broken.
- An object of the present invention is to provide a noise reduction device capable of suppressing an increase in temperature of a band member during traveling and improving high-speed durability, and a pneumatic tire including the noise reduction device.
- a noise reduction device includes a band member made of a thermoplastic resin formed in an annular shape along an inner surface of a tire, and a sound absorbing material made of a porous material joined to the band member.
- the pneumatic tire of the present invention is characterized in that the above-described noise reduction device is provided in the cavity.
- the noise reduction device in which the sound absorbing material is attached to the tire inner surface based on the elastic restoring force of the band member, at least one convex portion is provided on the outer peripheral surface of the band member, and the outer peripheral surface of the band member is Even if the pneumatic tire generates heat during traveling, the heat propagates from the inner surface of the tire by setting the contact area when contacting the smooth surface to be in the range of 10% to 80% of the projected area of the band member. As a result, it is possible to suppress the temperature of the band member from rising and improve the high-speed durability of the noise reduction device.
- a chamfered portion formed of a curved surface is formed at an edge that contacts the tire inner surface of the convex portion, and the curvature radius of the chamfered portion in the band width direction cross section and the curvature radius of the band circumferential direction cross section are each 0.1 mm to It is preferably 3.0 mm.
- the convex portion preferably includes at least one convex portion that continuously extends in the circumferential direction of the band member. Moreover, it is preferable that a convex part contains the some convex part arrange
- the height of the convex portion is preferably 50% to 100% of the thickness of the base material constituting the band member.
- the sound absorbing material is disposed between the band member and the thermoplastic resin locking member, and the sound absorbing material is fixed to the band member by thermally fusing the locking member to the band member through the sound absorbing material. It is preferable. Thereby, the sound absorbing material can be firmly fixed to the band member made of thermoplastic resin.
- the contact area of the band member means that the band member is developed on a smooth surface made of a rigid body such as a steel plate, and the band member is disposed so that the outer peripheral surface thereof is in contact with the smooth surface.
- This is the total contact area between the band member and the smooth surface measured when a pressure of 250 Pa is applied to the member toward the smooth surface. More specifically, the sum of the contact areas is measured by applying the pressure with the pressure-sensitive paper sandwiched between the smooth surface and the band member, and measuring the area of the contacted part (colored part). Can be requested.
- the pressure sensitive paper for example, a pressure measurement film (prescale) manufactured by Fuji Film Co., Ltd. can be used.
- the projected area of the band member is a projected area measured when the band member is projected in the thickness direction.
- FIG. 1 is a perspective sectional view showing a pneumatic tire equipped with a noise reduction device according to an embodiment of the present invention.
- FIG. 2 is a perspective view showing a noise reduction device according to an embodiment of the present invention.
- FIGS. 3A to 3C show a method of joining the sound absorbing material to the band member, and FIGS. 3A to 3C are cross-sectional views of the respective steps.
- 4 (a) to 4 (c) show an example of a band member used in the present invention, FIG. 4 (a) is a developed view of the band member developed on a plane, and FIG. 4 (b) is a side view thereof.
- FIG. 4C is a cross-sectional view thereof.
- FIG. 1 is a perspective sectional view showing a pneumatic tire equipped with a noise reduction device according to an embodiment of the present invention.
- FIG. 2 is a perspective view showing a noise reduction device according to an embodiment of the present invention.
- FIGS. 3A to 3C show a method of joining
- FIG. 5 is a cross-sectional view showing a state in which the noise reduction device according to the embodiment of the present invention is installed on the tire inner surface.
- FIG. 6 is a cross-sectional view showing a modification of the band member used in the present invention.
- 7 (a) to (i) show various modifications of the band member used in the present invention, and
- FIGS. 7 (a) to (i) are cross-sectional views of the respective band members.
- FIGS. 8A to 8D show various modifications of the band member used in the present invention, and FIGS. 8A to 8D are development views in which each band member is developed on a plane.
- 9 (a) to 9 (c) show other modified examples of the band member used in the present invention, and FIG.
- FIG. 9 (a) is a developed view in which the band member is developed on a plane
- FIG. 9C is a cross-sectional view thereof
- FIG. 10 is a side view showing another modification of the band member used in the present invention.
- 11 (a) to 11 (b) show various modifications of the band member used in the present invention
- FIGS. 11 (a) to 11 (b) are cross-sectional views of the respective band members.
- 12 (a) to 12 (b) show various modified examples of the band member used in the present invention
- FIGS. 12 (a) to 12 (b) are development views in which each band member is developed on a plane.
- FIG. 1 shows a pneumatic tire according to an embodiment of the present invention
- FIG. 2 shows a noise reduction device according to an embodiment of the present invention
- a pneumatic tire includes a tread portion 1 that extends in the tire circumferential direction and has an annular shape, a pair of sidewall portions 2 disposed on both sides of the tread portion 1, and tires of these sidewall portions 2. And a pair of bead portions 3 arranged on the radially inner side.
- a ring-shaped noise reduction device 10 shown in FIG. 2 is mounted in the cavity 4 surrounded by the tread portion 1, the sidewall portion 2, and the bead portion 3.
- the noise reduction device 10 is disposed in a region corresponding to the tread portion 1 of the tire inner surface 5.
- the noise reduction device 10 includes a band member 11 made of a thermoplastic resin and a plurality of sound absorbing materials 12 made of a porous material.
- the band member 11 is formed in an annular shape along the tire inner surface 5, and the sound absorbing material 12 is joined to the band member 11 at intervals from each other along the circumferential direction of the band member 11.
- These sound absorbing materials 12 have a large number of internal cells and have predetermined sound absorbing characteristics based on the porous structure.
- foamed polyurethane may be used as the porous material of the sound absorbing material 12.
- the band member 11 holds the sound absorbing material 12 on the tire inner surface 5 based on the elastic restoring force.
- the noise reduction device 10 configured as described above is detachable from a normal pneumatic tire, and the attachment / detachment work is easy.
- the noise reduction device 10 as a means for joining the band member 11 and the sound absorbing material 12, heat fusion using a locking member 13 made of a thermoplastic resin is employed. That is, the sound absorbing material 12 is disposed between the band member 11 made of thermoplastic resin and the locking member 13 made of thermoplastic resin, and the locking member 13 is heat-sealed to the band member 11 through the sound absorbing material 12. ing.
- the constituent material of the band member 11 and the constituent material of the locking member 13 may be the same type of thermoplastic resin, for example, polypropylene.
- FIG. 3 (a) to 3 (c) show a method of joining the sound absorbing material 12 to the band member 11.
- FIG. 3A the sound absorbing material 12 is disposed between the band member 11 and the plate-like locking member 13.
- FIG. 3B the vibration horn 20 of the ultrasonic welder is pressed against the locking member 13 so that the locking member 13 is bent, and the bent portion is locally heated. To do.
- FIG. 3C the locking member 13 and the band member 11 are heat-sealed through the sound absorbing material 12, and each sound absorbing material 12 is attached to the band member 11 by the plurality of locking members 13.
- Join As a method for joining the band member 11 and the sound absorbing material 12, it is preferable to use the above-mentioned heat fusion, but the joining method is not particularly limited, and for example, an adhesive can be used. It is.
- At least one convex portion 14 is formed on the outer peripheral surface of the band member 11. More specifically, as shown in FIGS. 4A to 4C, on the outer peripheral surface of the band member 11, a convex portion 14 is continuously extended in the circumferential direction (longitudinal direction) of the band member 11. Three convex portions 14A are formed.
- the contact area when the outer peripheral surface of the band member 11 is brought into contact with the smooth surface is set to be in the range of 10% to 80% of the projected area of the band member 11.
- the noise reduction device 10 in which the sound absorbing material 12 is mounted on the tire inner surface 5 based on the elastic restoring force of the band member 11 as described above, at least one convex portion 14 is provided on the outer peripheral surface of the band member 11, and the band
- the contact area when the outer peripheral surface of the member 11 is brought into contact with the smooth surface is in the range of 10% to 80% of the projected area of the band member 11, as shown in FIG.
- the contact area with the inner surface 5 is reduced. Therefore, even if the pneumatic tire generates heat during traveling, the heat is transmitted from the tire inner surface 5 to suppress the temperature of the band member 11 from rising, and the high speed durability of the noise reduction device 10 can be improved.
- the band member 11 receives a large tension due to the mass of the sound-absorbing material 12, and further, the tire generates heat during high-speed traveling. It is assumed that plastic deformation of the band member 11 is caused by the softening of the thermoplastic resin constituting the band member 11, but the band member 11 is suppressed by suppressing the temperature rise of the band member 11 as described above. It is possible to suppress the deformation of the resin and maintain its durability satisfactorily.
- the contact area when the outer peripheral surface of the band member 11 is brought into contact with the smooth surface needs to be in the range of 10% to 80% of the projected area of the band member 11.
- the contact area is less than 10% of the projected area, the convex portion 14 is easily worn out and the tire inner surface 5 is easily damaged.
- the contact area is more than 80% of the projected area, the effect of suppressing the temperature rise of the band member 11 becomes insufficient.
- the contact area when the outer peripheral surface of the band member 11 is brought into contact with the smooth surface is desirably in the range of 40% to 60% of the projected area of the band member 11, and in this case, improvement in high-speed durability is achieved. The effect is remarkably obtained.
- a chamfered portion 15 made of a curved surface is formed at an edge that contacts the tire inner surface 5 of the convex portion 14, and the curvature radius R in the cross section in the bandwidth direction of the chamfered portion 15 is formed.
- the radius of curvature R of the chamfered portion 15 is less than 0.1 mm, the tire inner surface 5 is liable to be damaged by contact with the convex portion 14, and conversely if it exceeds 3.0 mm, a new edge is formed at the end of the chamfered portion 15. As a result, the tire inner surface 5 is damaged.
- the radius of curvature of the chamfered portion 15 in the cross section in the band circumferential direction is also 0.1 mm to 3.0 mm, and more preferably 0.5 mm to 1.5 mm.
- the height T1 of the convex portion 14 is preferably 50% to 100% of the thickness T0 of the base material constituting the band member 11. Thereby, heat conduction from the tire inner surface 5 to the band member 11 can be effectively suppressed, and high-speed durability can be further improved. If the height T1 of the convex portion 14 is less than 50% of the thickness T0 of the band member 11, the effect of suppressing heat conduction is reduced. Conversely, if the height T1 exceeds 100% of the thickness T0, the rigidity of the band member 11 is reduced. Since it becomes high, durability at low temperature is deteriorated, and the band member 11 is easily cracked.
- the specific form is not particularly limited.
- Various forms as shown in FIGS. 7A to 7I and FIGS. 8A to 8D can be adopted.
- FIG. 7A eight convex portions 14A are formed on the outer peripheral surface of the band member 11 so as to be arranged in the width direction of the band member 11.
- FIG. 7B six convex portions 14 ⁇ / b> A arranged so as to be arranged in the width direction of the band member 11 are formed on the outer peripheral surface of the band member 11, and the arrangement thereof is asymmetric.
- FIG. 7C one convex portion 14 ⁇ / b> A having a curved surface is formed on the outer peripheral surface of the band member 11.
- FIG. 7D one convex portion 14 ⁇ / b> A having a trapezoidal cross-sectional shape is formed on the outer peripheral surface of the band member 11.
- FIG. 7A eight convex portions 14A are formed on the outer peripheral surface of the band member 11 so as to be arranged in the width direction of the band member 11.
- FIG. 7B six convex portions 14 ⁇ / b> A arranged so as to be arranged in the width direction of the band member 11 are formed on the
- FIG. 7E two convex portions 14 ⁇ / b> A having a trapezoidal cross-sectional shape are formed on the outer peripheral surface of the band member 11.
- FIG. 7F two convex portions 14 ⁇ / b> A having a rectangular cross-sectional shape are formed on the outer peripheral surface of the band member 11.
- FIG.7 (g) the three convex parts 14A which have a rectangular cross-sectional shape are formed in the outer peripheral surface of the band member 11, and the arrangement
- FIG. 7E two convex portions 14 ⁇ / b> A having a trapezoidal cross-sectional shape are formed on the outer peripheral surface of the band member 11.
- FIG. 7F two convex portions 14 ⁇ / b> A having a rectangular cross-sectional shape are formed on the outer peripheral surface of the band member 11.
- FIG.7 (g) the three convex parts 14A which have a rectangular cross-sectional shape are formed in the outer peripheral surface of the band member 11, and the arrangement
- the base material of the band member 11 is processed into a wave shape, so that a convex portion 14 ⁇ / b> A that extends continuously in the circumferential direction of the band member 11 is formed on the outer peripheral surface of the band member 11.
- FIG. 7 (i) only the both ends in the width direction of the base material of the band member 11 are processed into a corrugated shape, whereby a convex portion 14A that continuously extends in the circumferential direction of the band member 11 is formed on the outer peripheral surface of the band member 11. Is formed.
- one convex portion 14 ⁇ / b> A that extends continuously in the circumferential direction of the band member 11 is formed on the outer peripheral surface of the band member 11.
- two convex portions 14 ⁇ / b> A that extend continuously in the circumferential direction of the band member 11 are formed on the outer peripheral surface of the band member 11.
- six convex portions 14 ⁇ / b> A that continuously extend in the circumferential direction of the band member 11 are formed on the outer peripheral surface of the band member 11.
- three convex portions 14 ⁇ / b> A that extend continuously in the circumferential direction of the band member 11 are formed on the outer peripheral surface of the band member 11, and the arrangement thereof is asymmetric.
- convex portions 14 In the noise reduction device 10, as shown in FIGS. 9 (a) to 9 (c), on the outer peripheral surface of the band member 11, as convex portions 14, intermittently along the circumferential direction (longitudinal direction) of the band member 11. It is also possible to provide a plurality of convex portions 14B arranged repeatedly. In particular, when the plurality of convex portions 14B are arranged at equal intervals along the circumferential direction of the band member 11, the effect of suppressing heat conduction can be enjoyed to the maximum, and the contact pressure of each convex portion 14B is equalized. Therefore, abrasion of the convex portion 14B and damage to the tire inner surface 5 can be avoided as much as possible.
- the specific form is particularly limited.
- various forms as shown in FIG. 10, FIG. 11 (a) to (b), and FIG. 12 (a) to (b) can be adopted.
- a plurality of convex portions 14B that are intermittently and repeatedly arranged along the circumferential direction of the band member 11 are formed on the outer peripheral surface of the band member 11, and the convex portions 14B are based on a predetermined arrangement pattern. Are arranged periodically.
- two convex portions 14B are formed on the outer peripheral surface of the band member 11 so as to be arranged in the width direction of the band member 11.
- two convex portions 14B arranged so as to be arranged in the width direction of the band member 11 are formed on the outer peripheral surface of the band member 11, and the arrangement thereof is asymmetric.
- a plurality of convex portions 14 ⁇ / b> B extending while being inclined with respect to the width direction of the band member 11 are formed on the outer circumferential surface of the band member 11, and these convex portions 14 ⁇ / b> B are circumferential directions of the band member 11. Are arranged intermittently and repeatedly.
- a plurality of convex portions 14B having a dimple shape are formed on the outer peripheral surface of the band member 11, and these convex portions 14B are arranged in a staggered manner.
- the band member including a band member made of a thermoplastic resin formed in an annular shape along the inner surface of the tire, and a sound absorbing material made of a porous material joined to the band member
- the noise reduction devices of the conventional example, the comparative examples 1 to 3 and the examples 1 to 6 in which the configurations of the band members are variously manufactured were manufactured. These noise reduction devices are suitable for pneumatic tires with a tire size of 245 / 50R18 100W.
- the thickness of the band member was 1.0 mm, and the outer peripheral surface of the band member was a flat surface having no projections.
- the thickness of the band member is 1.0 mm, and at least one convex portion having a height of 1.0 mm is provided on the outer peripheral surface of the band member.
- the ratio between the contact area when the outer peripheral surface of the band member was brought into contact with the smooth surface and the projected area of the band member was varied.
- the thickness of the band member was 2.0 mm, and the outer peripheral surface of the band member was a flat surface having no projections.
- a chamfered portion made of a curved surface is formed at an edge that contacts the tire inner surface of the convex portion, and a curvature radius in a band width direction cross section and a band circumferential direction cross section of the chamfered portion is set to a predetermined Set to value.
- Each noise reduction device is installed in the cavity of a pneumatic tire of tire size 245 / 50R18 100W, the pneumatic tire is assembled to a wheel of rim size 18 ⁇ 8J, and the ambient temperature is 38 ⁇ 3 ° C. using an indoor drum tester.
- the running test was performed under the conditions of an air pressure of 320 kPa and a load of 5.34 kN. At that time, start the test from a running speed of 250 km / h, continue running at that speed for 10 minutes, check whether the band member is broken (deformed), and if no abnormality is found, increase the running speed by 10 km / h. Then, after further running at that speed for 10 minutes, the band member was examined for destruction. This was repeated to determine the speed at which the band member was broken. The evaluation result was displayed by the breaking speed of the band member. It means that high speed durability is excellent, so that this destruction speed is large.
- Each noise reduction device is installed in the cavity of a pneumatic tire of tire size 245 / 50R18 100W, the pneumatic tire is assembled to a wheel of rim size 18 ⁇ 8J, and the ambient temperature is 38 ⁇ 3 ° C. using an indoor drum tester.
- the running test was performed under the conditions of an air pressure of 540 kPa, a load of 12.56 kN, and a running speed of 81 km / h. And after traveling 20000 km, the state of the pneumatic tire and the noise reduction device was confirmed.
- the evaluation results are indicated by “A” when no problem is observed in the pneumatic tire and the noise reduction device, and indicated by “B” when damage is observed in the band member.
- the case where damage on the inner surface is recognized is indicated by “C”.
- Each noise reduction device is installed in the cavity of a pneumatic tire of tire size 245 / 50R18 100W, the pneumatic tire is assembled to a wheel of rim size 18 ⁇ 8J, and the ambient temperature is ⁇ 20 ⁇ 3 using an indoor drum tester.
- the running test was performed under the conditions of ° C., air pressure of 120 kPa, load of 5.95 kN, and running speed of 81 km / h. And after driving
- the evaluation results are indicated by “A” when no problem is observed in the noise reduction device, and indicated by “B” when the band member is cracked, and the band member protrusions are worn or the tire inner surface is damaged. The case where it is recognized is indicated by “C”.
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Abstract
Description
各騒音低減装置をタイヤサイズ245/50R18 100Wの空気入りタイヤの空洞部内に装着し、その空気入りタイヤをリムサイズ18×8Jのホイールに組み付け、室内ドラム試験機を用いて、雰囲気温度38±3℃、空気圧320kPa、荷重5.34kNの条件下で走行試験を実施した。その際、走行速度250km/hから試験を開始し、10分間その速度で継続走行し、バンド部材の破壊(変形)の有無を調べ、異常が発見されない場合は10km/h単位で走行速度を増加させ、更に10分間その速度で継続走行した後、バンド部材の破壊の有無を調べた。これを繰り返してバンド部材に破壊が生じた速度を求めた。評価結果は、バンド部材の破壊速度により表示した。この破壊速度が大きいほど高速耐久性が優れていることを意味する。
各騒音低減装置をタイヤサイズ245/50R18 100Wの空気入りタイヤの空洞部内に装着し、その空気入りタイヤをリムサイズ18×8Jのホイールに組み付け、室内ドラム試験機を用いて、雰囲気温度38±3℃、空気圧540kPa、荷重12.56kN、走行速度81km/hの条件下で走行試験を実施した。そして、20000km走行後、空気入りタイヤ及び騒音低減装置の状態を確認した。評価結果は、空気入りタイヤ及び騒音低減装置に何ら問題が認められない場合を「A」で示し、バンド部材に損傷が認められる場合を「B」で示し、バンド部材の凸部の磨滅又はタイヤ内面の損傷が認められる場合を「C」で示した。
各騒音低減装置をタイヤサイズ245/50R18 100Wの空気入りタイヤの空洞部内に装着し、その空気入りタイヤをリムサイズ18×8Jのホイールに組み付け、室内ドラム試験機を用いて、雰囲気温度-20±3℃、空気圧120kPa、荷重5.95kN、走行速度81km/hの条件下で走行試験を実施した。そして、2025km走行後、騒音低減装置の状態を確認した。評価結果は、騒音低減装置に何ら問題が認められない場合を「A」で示し、バンド部材に割れが発生した場合を「B」で示し、バンド部材の凸部の磨滅又はタイヤ内面の損傷が認められる場合を「C」で示した。
2 ビード部
3 サイドウォール部
4 空洞部
5 タイヤ内面
10 騒音低減装置
11 バンド部材
12 吸音材
13 係止部材
14,14A,14B 凸部
15 面取り部
Claims (8)
- タイヤ内面に沿うように環状に成形された熱可塑性樹脂からなるバンド部材と、該バンド部材に対して接合された多孔質材料からなる吸音材とを有し、前記バンド部材の弾性復元力に基づいて前記吸音材をタイヤ内面に装着するようにした騒音低減装置において、前記バンド部材の外周面に少なくとも1つの凸部を設け、該バンド部材の外周面を平滑面に対して接触させたときの接触面積が該バンド部材の投影面積の10%~80%の範囲にあることを特徴とする騒音低減装置。
- 前記凸部のタイヤ内面に接触するエッジに曲面からなる面取り部を形成し、該面取り部のバンド幅方向断面での曲率半径及びバンド周方向断面での曲率半径がそれぞれ0.1mm~3.0mmであることを特徴とする請求項1に記載の騒音低減装置。
- 前記凸部が前記バンド部材の周方向に連続的に延在する少なくとも1つの凸部を含むことを特徴とする請求項1又は2に記載の騒音低減装置。
- 前記凸部が前記バンド部材の周方向に沿って断続的かつ反復的に配置された複数の凸部を含むことを特徴とする請求項1又は2に記載の騒音低減装置。
- 前記凸部が前記バンド部材の幅方向に並ぶように配置された複数の凸部を含むことを特徴とする請求項1~4のいずれかに記載の騒音低減装置。
- 前記凸部の高さが前記バンド部材を構成する基材の厚さの50%~100%であることを特徴とする請求項1~5のいずれかに記載の騒音低減装置。
- 前記吸音材を前記バンド部材と熱可塑性樹脂製の係止部材との間に配置し、前記係止部材を前記吸音材を通して前記バンド部材に対して熱融着することにより、前記吸音材を前記バンド部材に対して固定したことを特徴とする請求項1~6のいずれかに記載の騒音低減装置。
- 請求項1~7のいずれかに記載の騒音低減装置を空洞部内に備えたことを特徴とする空気入りタイヤ。
Priority Applications (4)
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DE112015003848.5T DE112015003848T5 (de) | 2014-08-22 | 2015-08-10 | Vorrichtung zum Reduzieren von Reifengeräuschen und Luftreifen, der mit Selbiger ausgestattet ist |
KR1020167027129A KR101798866B1 (ko) | 2014-08-22 | 2015-08-10 | 소음 저감 장치 및 그것을 구비한 공기입 타이어 |
CN201580031254.2A CN106457899B (zh) | 2014-08-22 | 2015-08-10 | 噪音降低装置和具备该噪音降低装置的充气轮胎 |
US15/505,900 US10800214B2 (en) | 2014-08-22 | 2015-08-10 | Noise reduction device and pneumatic tire provided with the same |
Applications Claiming Priority (2)
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JP2014-169867 | 2014-08-22 | ||
JP2014169867A JP6432211B2 (ja) | 2014-08-22 | 2014-08-22 | 騒音低減装置及びそれを備えた空気入りタイヤ |
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WO2016027723A1 true WO2016027723A1 (ja) | 2016-02-25 |
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PCT/JP2015/072675 WO2016027723A1 (ja) | 2014-08-22 | 2015-08-10 | 騒音低減装置及びそれを備えた空気入りタイヤ |
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US (1) | US10800214B2 (ja) |
JP (1) | JP6432211B2 (ja) |
KR (1) | KR101798866B1 (ja) |
CN (1) | CN106457899B (ja) |
DE (1) | DE112015003848T5 (ja) |
WO (1) | WO2016027723A1 (ja) |
Cited By (2)
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JP2017178179A (ja) * | 2016-03-31 | 2017-10-05 | 横浜ゴム株式会社 | タイヤ騒音低減装置及びそれを備えた空気入りタイヤ |
US11446968B2 (en) * | 2017-11-13 | 2022-09-20 | Bridgestone Corporation | Tire |
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JP6613890B2 (ja) * | 2014-06-24 | 2019-12-04 | 横浜ゴム株式会社 | タイヤ用騒音低減装置および空気入りタイヤ |
WO2015198996A1 (ja) * | 2014-06-24 | 2015-12-30 | 横浜ゴム株式会社 | タイヤ用騒音低減装置および空気入りタイヤ |
BR112020000734B1 (pt) * | 2017-07-27 | 2023-03-21 | Pirelli Tyre S.P.A | Processo para produzir pneus, e, conjunto de pneus para rodas de veículos |
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- 2015-08-10 CN CN201580031254.2A patent/CN106457899B/zh not_active Expired - Fee Related
- 2015-08-10 DE DE112015003848.5T patent/DE112015003848T5/de not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
DE112015003848T5 (de) | 2017-05-11 |
KR20160127128A (ko) | 2016-11-02 |
JP6432211B2 (ja) | 2018-12-05 |
KR101798866B1 (ko) | 2017-11-17 |
JP2016043823A (ja) | 2016-04-04 |
US10800214B2 (en) | 2020-10-13 |
US20180215209A1 (en) | 2018-08-02 |
CN106457899A (zh) | 2017-02-22 |
CN106457899B (zh) | 2019-08-16 |
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