JP2010179888A - Pneumatic tire - Google Patents
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- JP2010179888A JP2010179888A JP2009027644A JP2009027644A JP2010179888A JP 2010179888 A JP2010179888 A JP 2010179888A JP 2009027644 A JP2009027644 A JP 2009027644A JP 2009027644 A JP2009027644 A JP 2009027644A JP 2010179888 A JP2010179888 A JP 2010179888A
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- tire
- wireless tag
- sound absorbing
- absorbing member
- pneumatic tire
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Abstract
Description
本発明は、無線タグが取り付けられた空気入りタイヤに関する。 The present invention relates to a pneumatic tire to which a wireless tag is attached.
タイヤの空気圧、温度等のタイヤの内部状態を検出するセンサを備えタイヤのＩＤ（識別コード）を格納する無線タグ（ＲＦＩＤタグ）を、タイヤのインナーライナの内面に貼り付け、外部からタイヤの状態情報を読み取って走行中のタイヤの状態を判定するとともに、タイヤの識別情報などを読み取ってタイヤを管理することにより、車両走行における安全性を高めることが提案されている。
しかしながら、無線タグを、タイヤのインナーライナの内面に直接貼り付けた場合、車両走行時に加わる衝撃や振動などによって無線タグのアンテナ部が損傷し、ひいては無線タグ自体が損傷する虞がある。
そこで、特許文献１においては、無線タグをスポンジ材の内部に埋め込んでタイヤ内側面に取り付けることによって、無線タグを衝撃や振動などから適切に保護する空気入りタイヤが提案されている。
A wireless tag (RFID tag) that has a sensor for detecting the internal state of the tire, such as the tire pressure and temperature, and that stores the tire ID (identification code) is attached to the inner surface of the inner liner of the tire, and the state of the tire from the outside It has been proposed to improve safety in vehicle travel by reading information to determine the state of a running tire, and managing tires by reading tire identification information and the like.
However, when the wireless tag is directly attached to the inner surface of the inner liner of the tire, the antenna portion of the wireless tag may be damaged due to impact or vibration applied during traveling of the vehicle, and as a result, the wireless tag itself may be damaged.
Therefore, Patent Document 1 proposes a pneumatic tire that appropriately protects a wireless tag from impact, vibration, and the like by embedding the wireless tag in a sponge material and attaching the wireless tag to an inner surface of the tire.
しかしながら、無線タグをスポンジ材の内部に埋め込んだ場合、スポンジ材の内部では動きの自由度が制限されるので、走行時にタイヤが変形した場合、無線タグのアンテナ部がその変形に追従できず、アンテナ部を損傷することがある。
本発明は、このような問題点に鑑みてなされたものであり、本発明の目的は、走行時にタイヤが変形した場合であっても、無線タグのアンテナ部に加わる変形を緩和して、アンテナ部の損傷を防止し、ひいては無線タグの損傷を防止できる空気入りタイヤを提供することにある。
However, when the wireless tag is embedded in the sponge material, the freedom of movement is limited inside the sponge material, so if the tire deforms during travel, the antenna part of the wireless tag cannot follow the deformation, The antenna part may be damaged.
The present invention has been made in view of such problems, and an object of the present invention is to relieve the deformation applied to the antenna portion of the wireless tag even when the tire is deformed during traveling, and It is an object of the present invention to provide a pneumatic tire that can prevent damage to a portion and, in turn, damage to a wireless tag.
上記目的を達成するため、本発明は、吸音部材および無線タグをタイヤ内面に有する空気入りタイヤにおいて、前記吸音部材が、繊維フィラメントを絡ませて成型した不織布からなり、前記無線タグが、本体部とアンテナ部とを有し、前記本体部が、前記吸音部材を介してタイヤ内面に取り付けられており、前記アンテナ部の少なくとも一部が、前記吸音部材の内部に配置されていることを特徴とする。 In order to achieve the above object, the present invention provides a pneumatic tire having a sound absorbing member and a wireless tag on an inner surface of the tire, wherein the sound absorbing member is made of a nonwoven fabric formed by entanglement of fiber filaments, and the wireless tag includes a body portion and An antenna portion, wherein the main body portion is attached to an inner surface of the tire via the sound absorbing member, and at least a part of the antenna portion is disposed inside the sound absorbing member. .
前記本体部は、前記吸音部材の内部または表面に配置されていることが好ましく、前記無線タグは、タイヤの内部状態を検出するセンサとそれらの履歴を記録する機能を備えることが好ましい。 The main body portion is preferably disposed inside or on the surface of the sound absorbing member, and the wireless tag preferably has a sensor for detecting the internal state of the tire and a function for recording the history thereof.
本発明は、無線タグのアンテナ部を、ある程度動きの自由度が存在する吸音部材の内部もしくは表面に配置するため、走行時にタイヤが変形しても、自由に大きく屈曲しなくなるので、アンテナ部の損傷を防止でき、ひいては無線タグの損傷を防止できる。 In the present invention, since the antenna portion of the wireless tag is arranged inside or on the surface of the sound absorbing member having a certain degree of freedom of movement, even if the tire is deformed during traveling, it will not bend freely. Damage can be prevented, and thus damage to the wireless tag can be prevented.
本発明の実施の形態について図面を参照して説明する。図１は、この発明に係る空気入りタイヤの実施の形態を、それの転動姿勢で示すタイヤ幅方向の部分略線断面図であり、図中、１は、空気入りタイヤの全体を、２は、そのタイヤ１を組付けた適用リムをそれぞれ示す。 Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partial schematic cross-sectional view in the tire width direction showing an embodiment of a pneumatic tire according to the present invention in its rolling posture. In the figure, 1 denotes the whole pneumatic tire. These show rims to which the tire 1 is assembled.
空気入りタイヤ１は、トレッド部３、このトレッド部３のそれぞれの側部に連続する一部のサイドウォール部４および、各サイドウォール部４の内周側に連続するビード部５を備え、これらの各部は、両ビード部間にトロイダルに延びてタイヤの骨格をなすカーカス６によって補強され、そしてトレッド部３は、カーカス６のクラウン域の外周側に配置したベルト７によってさらに補強される。
なお、図中Ｗは、トレッド接地幅を示すものとし、Ｅは、タイヤ赤道面を示すものとする。
The pneumatic tire 1 includes a tread portion 3, a part of the sidewall portion 4 that is continuous to each side portion of the tread portion 3, and a bead portion 5 that is continuous to the inner peripheral side of each sidewall portion 4. These parts are reinforced by a carcass 6 that extends in a toroidal manner between both bead parts to form a tire skeleton, and the tread part 3 is further reinforced by a belt 7 disposed on the outer peripheral side of the crown region of the carcass 6.
In the figure, W represents the tread contact width, and E represents the tire equator plane.
そして、ここにおけるタイヤ１はさらに、インナーライナ８の内面に、繊維フィラメントを絡ませて成型した不織布からなる吸音部材９を、たとえば、そこに溶融含浸させた含浸層その他の接着層１０を介して、タイヤ赤道面Ｅを中心として、たとえば、インナーライナ８の全周にわたって、または周方向の一部分だけに固着させている。
さらに、吸音部材９の内部には、無線タグ（ＲＦＩＤタグ）１１が、アンテナ部をタイヤ周方向と直交方向となるようにして配置されている。
Further, the tire 1 here further includes a sound-absorbing member 9 made of a nonwoven fabric entangled with fiber filaments on the inner surface of the inner liner 8, for example, via an impregnation layer or other adhesive layer 10 melt-impregnated therein. For example, the tire equator plane E is fixed around the entire circumference of the inner liner 8 or only in a part in the circumferential direction.
Furthermore, a radio tag (RFID tag) 11 is arranged inside the sound absorbing member 9 so that the antenna portion is in a direction orthogonal to the tire circumferential direction.
なお、上述した実施の形態では、無線タグ１１の本体部２１は、吸音部材９の内部に配置されているが、無線タグ１１の本体部２１を、外部である吸音部材の表面に配置するようにしてもよい。アンテナ部２２も吸音部材９の内部に配置されているが、アンテナ部２２の一部を吸音部材９の表面に配置してもよい。
また、無線タグを、アンテナ部をタイヤ周方向と直交方向にして配置したが、アンテナ部をタイヤ周方向となるように配置してもよい。
また、アンテナ部２２および本体部２１を吸音部材９の内部に配置する際に、無線タグに加わる衝撃や振動などを低減するためには、接着層１０から０．５ｍｍ以上となるように配置することが好ましい。
In the above-described embodiment, the main body portion 21 of the wireless tag 11 is disposed inside the sound absorbing member 9, but the main body portion 21 of the wireless tag 11 is disposed on the surface of the external sound absorbing member. It may be. Although the antenna portion 22 is also disposed inside the sound absorbing member 9, a part of the antenna portion 22 may be disposed on the surface of the sound absorbing member 9.
Further, although the wireless tag is arranged with the antenna portion orthogonal to the tire circumferential direction, the antenna portion may be arranged so as to be in the tire circumferential direction.
Further, when the antenna unit 22 and the main body unit 21 are arranged inside the sound absorbing member 9, the antenna unit 22 and the main body unit 21 are arranged so as to be 0.5 mm or more from the adhesive layer 10 in order to reduce the impact or vibration applied to the wireless tag. It is preferable.
図２は、無線タグの外観を示す図である。無線タグ１１は、本体部２１とアンテナ部２２とにより構成されている。 FIG. 2 is a diagram illustrating an appearance of the wireless tag. The wireless tag 11 includes a main body portion 21 and an antenna portion 22.
図３は、無線タグの本体部の電気回路構成を概略的に示す図である。本体部２１は、タイヤの空気圧、温度等のタイヤの内部状態を検出するセンサ３１と、センサ３１からのデータを処理するＣＰＵ３２と、タイヤのＩＤ（識別コード）を格納するメモリ（ＲＯＭ）３３と、センサ３１から得られたデータ、製品情報（製造年月日、流通過程、検査情報等）を格納する書き換え可能メモリ３４と、メモリ３３に格納されたＩＤ（識別コード）とメモリ３４に格納されたデータを外部に電波で送信する送受信ユニット３５と、バッテリ３６を備えている。 FIG. 3 is a diagram schematically showing an electric circuit configuration of the main body of the wireless tag. The main body 21 includes a sensor 31 that detects the internal state of the tire such as the tire pressure and temperature, a CPU 32 that processes data from the sensor 31, and a memory (ROM) 33 that stores the tire ID (identification code). Rewritable memory 34 for storing data obtained from sensor 31, product information (manufacturing date, distribution process, inspection information, etc.), ID (identification code) stored in memory 33, and memory 34 A transmission / reception unit 35 for transmitting data to the outside by radio waves, and a battery 36.
センサ３１は、例えば、圧力センサ、温度センサ等であり、タイヤ内腔部の圧力等を連続的に検出し、ＣＰＵ１５は、走行時にセンサ３１からの信号を処理し、メモリ３４に記録する。そして、送受信ユニット３５は、アンテナ部２２から電波でメモリ３３、３４に記録されているデータを車体側に搭載されたリーダー／ライター装置（図示せず）に送信する。 The sensor 31 is, for example, a pressure sensor, a temperature sensor, and the like, and continuously detects the pressure in the tire lumen, and the CPU 15 processes a signal from the sensor 31 during running and records it in the memory 34. Then, the transmission / reception unit 35 transmits the data recorded in the memories 33 and 34 by radio waves from the antenna unit 22 to a reader / writer device (not shown) mounted on the vehicle body side.
なお、センサ３１を省略して、メモリ（ＲＯＭ）３３に格納する無線タグのＩＤ（識別コード）、メモリ３４に格納する製品情報を使用して、無線タグをタイヤの管理のみに使用するようにしてもよい。
また、無線タグは、センサ３１から得られたデータの履歴を、書き換え可能メモリ３４に記録（格納）する機能を備えるようにしてもよい。
The sensor 31 is omitted, and the wireless tag is used only for tire management by using the ID (identification code) of the wireless tag stored in the memory (ROM) 33 and the product information stored in the memory 34. May be.
Further, the wireless tag may have a function of recording (storing) the history of data obtained from the sensor 31 in the rewritable memory 34.
ここで、不織布からなる吸音部材９は、タイヤ赤道面Ｅを中心として、トレッド接地幅Ｗの３０〜１００％に相当する範囲内の幅を有するものとすることが、タイヤの耐久性を損なうことなしに、すぐれた吸音効果を発揮させることができる点で好ましい。また、それの厚さは、１０〜５０ｍｍの範囲とするのが、すぐれた吸音効果を発揮させるとともに無線タグへの衝撃吸収効果を確保する点で好ましい。 Here, the sound absorbing member 9 made of non-woven fabric has a width within a range corresponding to 30 to 100% of the tread contact width W with the tire equatorial plane E as the center, which impairs the durability of the tire. No, it is preferable in that an excellent sound absorbing effect can be exhibited. In addition, it is preferable that the thickness be in the range of 10 to 50 mm in order to achieve an excellent sound absorbing effect and to secure an impact absorbing effect on the wireless tag.
また、吸音部材９の密度は５〜５００ｋｇ／ｍ３とするのが好ましく、これを５ｋｇ／ｍ３未満とすると部材としての形状安定性が失われ、例えばタイヤ内面に取り付けて走行させたとき部材がタイヤから脱落する可能性があり、また、５００ｋｇ／ｍ３を越えるものとした場合には、タイヤ重量を増加させ、燃費を急激に悪化させる。
また、吸音部材９のインナーライナ８への貼り付け（固着）は加硫前、加硫後のいずれでもよい。
Also, member when the density of the sound absorbing member 9 is preferably a 5~500kg / m 3, which the shape stability of the member when less than 5 kg / m 3 is lost, for example, were run attached to the inner surface of the tire May drop off from the tire, and if it exceeds 500 kg / m 3 , the tire weight is increased and the fuel consumption is drastically deteriorated.
Further, the sound absorbing member 9 may be attached (fixed) to the inner liner 8 either before vulcanization or after vulcanization.
上述したように、本発明は、無線タグのアンテナ部が、吸音部材の内部に配置されるため、タイヤに振動が生じた際に、強制的に大きく屈曲しなくなるので、アンテナの損傷を防止でき、ひいては無線タグの損傷を防止できる。
さらに、タイヤからの振動やタイヤ自体の屈曲を、不織布内の空隙で吸収できるので、アンテナの損傷を防止でき、ひいては無線タグの損傷を防止できる。
また、本発明は、タイヤ内部に不織布からなる吸音部材を配設しているので空洞共鳴騒音を低減させることができる。
As described above, according to the present invention, since the antenna portion of the wireless tag is arranged inside the sound absorbing member, the antenna is prevented from being bent forcibly when the tire is vibrated. As a result, damage to the wireless tag can be prevented.
Furthermore, vibrations from the tire and bending of the tire itself can be absorbed by the gaps in the nonwoven fabric, so that the antenna can be prevented from being damaged, and thus the wireless tag can be prevented from being damaged.
Further, according to the present invention, since the sound absorbing member made of a nonwoven fabric is disposed inside the tire, the cavity resonance noise can be reduced.
１ 空気入りタイヤ
２ リム
３ トレッド部
４ サイドウォール部
５ ビード部
６ カーカス
７ ベルト
８ インナーライナ
９ 吸音部材
１０ 接着層
１１ 無線タグ
２１ 本体部
２２ アンテナ部
３１ センサ
３２ ＣＰＵ
３３ メモリ（ＲＯＭ）
３４ メモリ
３５ 送受信ユニット
３６ バッテリ
DESCRIPTION OF SYMBOLS 1 Pneumatic tire 2 Rim 3 Tread part 4 Side wall part 5 Bead part 6 Carcass 7 Belt 8 Inner liner 9 Sound absorption member 10 Adhesive layer 11 Radio | wireless tag 21 Main body part 22 Antenna part 31 Sensor 32 CPU
33 Memory (ROM)
34 Memory 35 Transmission / Reception Unit 36 Battery
Claims (3)
前記吸音部材は、繊維フィラメントを絡ませて成型した不織布からなり、
前記無線タグは、本体部とアンテナ部とを有し、
前記本体部は、前記吸音部材を介してタイヤ内面に取り付けられており、
前記アンテナ部は、少なくとも一部が前記吸音部材の内部に配置されていることを特徴とする空気入りタイヤ。 In a pneumatic tire having a sound absorbing member and a wireless tag on the tire inner surface,
The sound absorbing member is made of a non-woven fabric formed by entwining a fiber filament,
The wireless tag has a main body portion and an antenna portion,
The main body is attached to the tire inner surface via the sound absorbing member,
The pneumatic tire is characterized in that at least a part of the antenna portion is disposed inside the sound absorbing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009027644A JP2010179888A (en) | 2009-02-09 | 2009-02-09 | Pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009027644A JP2010179888A (en) | 2009-02-09 | 2009-02-09 | Pneumatic tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2010179888A true JP2010179888A (en) | 2010-08-19 |
Family
ID=42761749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009027644A Pending JP2010179888A (en) | 2009-02-09 | 2009-02-09 | Pneumatic tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2010179888A (en) |
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| US10639948B2 (en) | 2014-12-30 | 2020-05-05 | Bridgestone Americas Tire Operations, Llc | Assembly for attaching an electronics package to a tire |
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| KR20230059655A (en) * | 2021-10-26 | 2023-05-03 | 넥센타이어 주식회사 | Pneumatic tire |
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| JP2009006819A (en) * | 2007-06-27 | 2009-01-15 | Bridgestone Corp | Tire/rim assembly |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103025545A (en) * | 2010-12-02 | 2013-04-03 | 横滨橡胶株式会社 | Tire equipped with information acquisition device |
| JP5888232B2 (en) * | 2010-12-02 | 2016-03-16 | 横浜ゴム株式会社 | Tire with information acquisition device |
| US9738122B2 (en) | 2010-12-02 | 2017-08-22 | The Yokohama Rubber Co., Ltd. | Tire provided with information acquisition device |
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| US10639948B2 (en) | 2014-12-30 | 2020-05-05 | Bridgestone Americas Tire Operations, Llc | Assembly for attaching an electronics package to a tire |
| US11358422B2 (en) | 2014-12-30 | 2022-06-14 | Bridgestone Americas Tire Operations, Llc | Assembly for attaching an electronics package to a tire |
| US11446967B2 (en) | 2017-07-24 | 2022-09-20 | Bridgestone Corporation | Pneumatic tire |
| JP2019023045A (en) * | 2017-07-24 | 2019-02-14 | 株式会社ブリヂストン | Pneumatic tire |
| CN110944852A (en) * | 2017-07-24 | 2020-03-31 | 株式会社普利司通 | Pneumatic tire |
| WO2019021730A1 (en) * | 2017-07-24 | 2019-01-31 | 株式会社ブリヂストン | Pneumatic tire |
| CN110944852B (en) * | 2017-07-24 | 2022-09-16 | 株式会社普利司通 | Pneumatic tire |
| WO2019035383A1 (en) * | 2017-08-14 | 2019-02-21 | 株式会社ブリヂストン | Pneumatic tire |
| JP2019034623A (en) * | 2017-08-14 | 2019-03-07 | 株式会社ブリヂストン | Pneumatic tire |
| CN111867857A (en) * | 2018-03-19 | 2020-10-30 | 诺基安伦卡特股份有限公司 | Tyre with modules |
| CN113263872A (en) * | 2020-02-17 | 2021-08-17 | 韩国轮胎与科技株式会社 | Self-generating sound-absorbing tire |
| KR20230044700A (en) * | 2021-09-27 | 2023-04-04 | 넥센타이어 주식회사 | Tire |
| KR102598497B1 (en) * | 2021-09-27 | 2023-11-07 | 넥센타이어 주식회사 | Tire |
| KR20230059655A (en) * | 2021-10-26 | 2023-05-03 | 넥센타이어 주식회사 | Pneumatic tire |
| KR102605818B1 (en) | 2021-10-26 | 2023-11-29 | 넥센타이어 주식회사 | Pneumatic tire |
| CN114393960A (en) * | 2021-12-13 | 2022-04-26 | 三角轮胎股份有限公司 | Puncture-resistant intelligent tire capable of reducing noise |
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