JP2004114788A - Tire - Google Patents

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Publication number
JP2004114788A
JP2004114788A JP2002279197A JP2002279197A JP2004114788A JP 2004114788 A JP2004114788 A JP 2004114788A JP 2002279197 A JP2002279197 A JP 2002279197A JP 2002279197 A JP2002279197 A JP 2002279197A JP 2004114788 A JP2004114788 A JP 2004114788A
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JP
Japan
Prior art keywords
tire
transponder
bead core
antenna
bead
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2002279197A
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Japanese (ja)
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JP4204833B2 (en
Inventor
Masanori Toyofuku
豊福　雅宣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
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Bridgestone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP2002279197A priority Critical patent/JP4204833B2/en
Publication of JP2004114788A publication Critical patent/JP2004114788A/en
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Publication of JP4204833B2 publication Critical patent/JP4204833B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2241—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in or for vehicle tyres
    • 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
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0491—Constructional details of means for attaching the control device
    • B60C23/0493—Constructional details of means for attaching the control device for attachment on the tyre

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tire on which a transponder and an antenna are arranged in such a manner that a transmission/receiving to/from the outside can be performed any time regardless of the rotation of the tire without spoiling durability of the tire or the transponder. <P>SOLUTION: An annular body comprising the transponder and the annular antenna which is connected with both ends of the transponder is embedded along at least one bead core. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、個々のタイヤに関する種々の情報を発信するトランスポンダを内蔵したタイヤに関する。
【０００２】
【従来の技術】
タイヤの識別情報やタイヤの内圧、温度などのタイヤ情報を保持し、外部から受信する情報送信要求の信号に応じて、これらの情報を送信するトランスポンダを埋設したタイヤはすでに知られていて、このトランスポンダは、例えばビードコアの周辺やその他のタイヤ構成部材に埋設されて設けられている（例えば特許文献１。）。そして、トランスポンダをビードコアの周辺に設ける場合、この領域は、タイヤの転動に伴って変形するタイヤにあって、比較的変形が少なく、タイヤもしくはトランスポンダの耐久性に与える悪影響を抑制する点で好ましい領域である。
【０００３】
【特許文献１】
特開平７−１３７５１０号公報（第２−３頁、図１）
【０００４】
【発明が解決しようとする課題】
しかしながら、従来のトランスポンダの配設構造によると、このトランスポンダから信号を受信し送信するためのアンテナは、トランスポンダのごく近傍の、タイヤ周方向の延在範囲が限定された領域に設けられているので、その送受信感度が十分でないうえ、回転するタイヤからの送受信に際して、周囲の電気的障害物がある場合、特定の回転位置に来たときしかで信号を送受信することができず、信号の送受信の信頼性を低下させていた。
【０００５】
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、タイヤもしくはトランスポンダの耐久性を阻害することなく、タイヤの回転にかかわりなくいつでも外部に対する送受信が可能なよう、トランスポンダおよびアンテナを配設したタイヤを提供することを目的とするものである。
【０００６】
【課題を解決するための手段】
上記目的を達成するため、本発明はなされたものであり、その要旨構成ならびに作用を以下に示す。
【０００７】
請求項１に記載のタイヤは、一対のビード部の間に一対のサイドウォール部およびトレッド部をトロイダル状に連ねて配置し、それぞれのビード部にビードコアを設けたタイヤにおいて、
トランスポンダとこの両端に接続された環状アンテナとよりなる環状体を、少なくとも一方のビードコアに沿って埋設してなるものである。
【０００８】
本発明のタイヤによれば、トランスポンダとアンテナとを、ともにタイヤの転動に際しての変形が少ないビードコアに沿う領域に埋設したので、タイヤならびにトランスポンダの耐久性への悪影響を抑制することができ、また、アンテナをビードコアに沿ってほぼ一周するよう環状に配設したので、タイヤの回転位置に拘らず外部に対して信号の送受信を行うことができる。
【０００９】
請求項２に記載のタイヤは、請求項１に記載するところにおいて、環状体の外表面に導電性ゴムよりなる被覆層を設けてなるものである。
【００１０】
本発明のタイヤによれば、環状体の表面を被覆する導電性ゴムにより、仮にタイヤの転動に伴う変形や衝撃によりアンテナの導通が損なわれたとしても、導電ゴムにより損傷部分の導電性をバックアップできるので、信頼性の高い送受信を確保することができる。
【００１１】
請求項３に記載のタイヤは、請求項１もしくは２に記載するところにおいて、前記環状体をビードコアの幅方向内側に向く方位からビードコアの半径方向外側に向く方位の間に配設してなるものである。
【００１２】
タイヤのホイールへの装着姿勢において、ビードコアの幅方向外側および半径方向内側にホイールが位置しているが、本発明のタイヤによれば、前記環状体を上記方位にの間に配設したので、外部との送受信に際して、スチールもしくはアルミニウムよりなるホイールが通信の障害となる可能性を大幅に低減することができる。
【００１３】
【発明の実施の形態】
以下、本発明の実施形態について図１ないし図２に基づいて説明する。図１はタイヤ１の子午線断面におけるビード部２を示す断面図であり、図２はトランスポンダ８とアンテナ５との接合部を示す断面図である。タイヤ１のビード部２にはタイヤ周方向に延在するビードコア３が配設され、また、カーカス７は、ビードコア３の周りにその側部をタイヤ幅方向外側に折り返されて設けられている。
【００１４】
一方、トランスポンダ８は、基板１１と基板１１にマウントされたチップ９とで構成されており、このチップ９は、それぞれ図示しない、タイヤ１の識別情報を保持する情報格納手段と、外部からの情報送信要求の信号を受信する受信手段と、受信した要求信号に応じて必要な情報を情報格納手段から取り出す制御手段と、取り出した情報を送信する送信手段とを有している。
【００１５】
トランスポンダ８の基板１１には、円環の一部を切り欠いた形状のアンテナ５の両端が半田付けされ、これらの端はそれぞれチップ９の送信手段および受信手段に電気的に接続されている。この環状のアンテナ５は、ビードコア３に沿って周方向に延在するとともに、タイヤ子午線断面においては、ビードコア３の半径方向すぐ外側の幅方向内側寄りに配置されている。
【００１６】
そして、トランスポンダ８およびアンテナ６はそれぞれ導電性ゴム６で外表面を被覆され、これら、トランスポンダ８、アンテナ６および導電性ゴム６は環状体４を構成する。この環状体４のタイヤ子午線断面における配置は、図１のものに限定されるものではなく、変形が少なくしかも外部との信号の送受信に障害とならない位置であればよい。その点では、ビードコア３のごく近傍で、リムから離隔した、ビードコア３のタイヤ半径方向外側もしくはビードコア３のタイヤ幅方向内側に位置させるのが好ましい。
【００１７】
なお、この実施形態のタイヤにおいては、トランスポンダを、温度やひずみ等を測定するセンサ等を具えるものとしてもよく、このようなトランスポンダにおいては、これらのセンサで検知したタイヤの情報を外部に送信することができる。
【００１８】
【発明の効果】
以上述べたところから明らかなように、本発明によれば、トランスポンダ８とアンテナ５とを、ともに変形が少ないビードコア３に沿う領域に埋設したので、トランスポンダ８、アンテナ５ならびにタイヤ１の耐久性への悪影響を抑制することができ、また、アンテナ５をビードコア３に沿ってほぼ一周するよう環状に配設したので、タイヤ１の回転位置に拘らず外部に対して信号の送受信を行うことができる。
【図面の簡単な説明】
【図１】本発明に係る実施形態のタイヤのビード部を示す子午線断面図である。
【図２】トランスポンダとアンテナとの接続部を示す略線断面図である。
【符号の説明】
１　タイヤ
２　ビード部
３　ビードコア
４　環状体
５　アンテナ
６　導電性ゴム
７　カーカス
８　トランスポンダ
９　チップ
１１　基板[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a tire having a built-in transponder for transmitting various information on each tire.
[0002]
[Prior art]
Tire information that holds tire identification information and tire information such as tire internal pressure and temperature, and that embeds a transponder that transmits such information in response to a signal of an information transmission request received from the outside, is already known. The transponder is provided, for example, by being buried in the periphery of a bead core or other tire constituent members (for example, Patent Document 1). When the transponder is provided around the bead core, this region is preferable in a tire that deforms with rolling of the tire, has relatively little deformation, and suppresses adverse effects on the durability of the tire or the transponder. Area.
[0003]
[Patent Document 1]
JP-A-7-137510 (page 2-3, FIG. 1)
[0004]
[Problems to be solved by the invention]
However, according to the conventional transponder arrangement structure, the antenna for receiving and transmitting a signal from the transponder is provided in an area in the vicinity of the transponder, where the extending range in the tire circumferential direction is limited. In addition, when the transmission and reception sensitivity is not sufficient and there is an electric obstacle around when transmitting and receiving from the rotating tire, signals can be transmitted and received only when it comes to a specific rotation position, Had reduced reliability.
[0005]
The present invention has been made in view of such a problem, and arranges a transponder and an antenna so that transmission and reception to and from the outside can be performed at any time regardless of the rotation of the tire without impairing the durability of the tire or the transponder. It is an object of the present invention to provide an installed tire.
[0006]
[Means for Solving the Problems]
To achieve the above object, the present invention has been made, and its gist configuration and operation will be described below.
[0007]
The tire according to claim 1, wherein a pair of sidewall portions and a tread portion are arranged in a toroidal shape between a pair of bead portions, and a bead core is provided in each bead portion.
An annular body comprising a transponder and an annular antenna connected to both ends thereof is buried along at least one bead core.
[0008]
According to the tire of the present invention, the transponder and the antenna are both buried in the region along the bead core where deformation during rolling of the tire is small, so that it is possible to suppress adverse effects on the durability of the tire and the transponder, Since the antenna is arranged annularly so as to make a complete circuit along the bead core, signals can be transmitted and received to and from the outside regardless of the rotational position of the tire.
[0009]
According to a second aspect of the present invention, in the tire according to the first aspect, a covering layer made of conductive rubber is provided on an outer surface of the annular body.
[0010]
According to the tire of the present invention, even if the conductive property of the antenna is impaired by the deformation or impact caused by the rolling of the tire by the conductive rubber covering the surface of the annular body, the conductive rubber reduces the conductivity of the damaged portion. Since backup can be performed, highly reliable transmission and reception can be ensured.
[0011]
The tire according to claim 3 is the tire according to claim 1 or 2, wherein the annular body is disposed between a direction facing inward in a width direction of the bead core and a direction facing radially outward of the bead core. It is.
[0012]
In the mounting posture of the tire on the wheel, the wheel is located on the outside in the width direction and the inside on the radial direction of the bead core, but according to the tire of the present invention, since the annular body is disposed between the above orientations, When transmitting / receiving data to / from the outside, the possibility that a wheel made of steel or aluminum may interfere with communication can be greatly reduced.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a sectional view showing a bead portion 2 in a meridian section of the tire 1, and FIG. A bead core 3 extending in the tire circumferential direction is provided on a bead portion 2 of the tire 1, and a carcass 7 is provided around the bead core 3 with its side portion turned outward in the tire width direction.
[0014]
On the other hand, the transponder 8 includes a substrate 11 and a chip 9 mounted on the substrate 11. The chip 9 includes information storage means (not shown) for storing identification information of the tire 1 and information from the outside. It has a receiving means for receiving a transmission request signal, a control means for extracting necessary information from the information storage means in accordance with the received request signal, and a transmitting means for transmitting the extracted information.
[0015]
The both ends of the antenna 5 having a shape in which a part of the ring is cut out are soldered to the substrate 11 of the transponder 8, and these ends are electrically connected to the transmitting means and the receiving means of the chip 9, respectively. The annular antenna 5 extends in the circumferential direction along the bead core 3 and is arranged radially outward of the bead core 3 and closer to the widthwise inner side in the tire meridian section.
[0016]
The outer surfaces of the transponder 8 and the antenna 6 are covered with conductive rubber 6, respectively. The arrangement of the annular body 4 in the tire meridian section is not limited to that shown in FIG. 1 and may be any position as long as it has little deformation and does not hinder transmission and reception of signals with the outside. In this regard, it is preferable that the bead core 3 be located very close to the bead core 3 and located outside the bead core 3 in the tire radial direction or bead core 3 in the tire width direction.
[0017]
In the tire of this embodiment, the transponder may be provided with a sensor or the like for measuring temperature, strain, or the like.In such a transponder, information on the tire detected by these sensors is transmitted to the outside. can do.
[0018]
【The invention's effect】
As is apparent from the above description, according to the present invention, since the transponder 8 and the antenna 5 are both buried in the area along the bead core 3 with little deformation, the durability of the transponder 8, the antenna 5 and the tire 1 is reduced. The antenna 5 is disposed in a ring shape so as to make substantially one round along the bead core 3, so that signals can be transmitted and received to and from the outside regardless of the rotational position of the tire 1. .
[Brief description of the drawings]
FIG. 1 is a meridional section showing a bead portion of a tire according to an embodiment of the present invention.
FIG. 2 is a schematic sectional view showing a connecting portion between a transponder and an antenna.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tire 2 Bead part 3 Bead core 4 Annular body 5 Antenna 6 Conductive rubber 7 Carcass 8 Transponder 9 Chip 11 Substrate

Claims (3)

一対のビード部の間に一対のサイドウォール部およびトレッド部をトロイダル状に連ねて配置し、それぞれのビード部にビードコアを設けたタイヤにおいて、
トランスポンダとこの両端に接続された環状アンテナとよりなる環状体を、少なくとも一方のビードコアに沿って埋設してなるタイヤ。In a tire in which a pair of sidewall portions and a tread portion are arranged in a toroidal shape between a pair of bead portions and a bead core is provided in each bead portion,
A tire having an annular body comprising a transponder and an annular antenna connected to both ends thereof embedded along at least one bead core. 環状体の外表面に導電性ゴムよりなる被覆層を設けてなる請求項１に記載のタイヤ。The tire according to claim 1, wherein a coating layer made of conductive rubber is provided on an outer surface of the annular body. 前記環状体をビードコアの幅方向内側に向く方位からビードコアの半径方向外側に向く方位の間に配設してなる請求項１もしくは２に記載のタイヤ。3. The tire according to claim 1, wherein the annular body is disposed between a direction facing inward in the width direction of the bead core and a direction facing radially outward of the bead core. 4.
JP2002279197A 2002-09-25 2002-09-25 tire Expired - Fee Related JP4204833B2 (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005331361A (en) * 2004-05-20 2005-12-02 Akebono Brake Ind Co Ltd Tyre air pressure alarming sensor
JP2008500532A (en) * 2004-05-25 2008-01-10 センスファブ プライベート リミテッド Tire pressure monitoring sensor
KR101091895B1 (en) * 2004-08-21 2011-12-08 삼성테크윈 주식회사 RFID tag for mounting vehicle tire
US8977422B1 (en) 2013-11-06 2015-03-10 The Goodyear Tire & Rubber Company Accoustic/vibration sensor and tire assembly and method of construction thereof
JP2020055460A (en) * 2018-10-03 2020-04-09 Ｔｏｙｏ Ｔｉｒｅ株式会社 tire
JP2020055455A (en) * 2018-10-03 2020-04-09 Ｔｏｙｏ Ｔｉｒｅ株式会社 tire
JP2021000855A (en) * 2019-06-19 2021-01-07 Ｔｏｙｏ Ｔｉｒｅ株式会社 tire
JP2021000854A (en) * 2019-06-19 2021-01-07 Ｔｏｙｏ Ｔｉｒｅ株式会社 tire

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016105687A1 (en) 2014-12-23 2016-06-30 Bridgestone Americas Tire Operations, Llc Tire having radio frequency identification device for monitoring structural health

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JP2002264617A (en) * 2001-03-07 2002-09-18 Hanex Co Ltd Structure for installing rfid tag on tire
JP2004058997A (en) * 2002-07-24 2004-02-26 Goodyear Tire & Rubber Co:The Annular antenna and transponder device, and method for disposing them in pneumatic tire
JP2004069694A (en) * 2002-07-24 2004-03-04 Goodyear Tire & Rubber Co:The Tagging housing of annular device and assembling method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05169931A (en) * 1991-03-27 1993-07-09 Goodyear Tire & Rubber Co:The Pneumatic tire having transbonder
JPH10119521A (en) * 1996-10-14 1998-05-12 Yokohama Rubber Co Ltd:The Pneumatic tire with transponder and transponder for pneumatic tire
JPH1142915A (en) * 1997-07-30 1999-02-16 Yokohama Rubber Co Ltd:The Transponder installed tire and its manufacture
JP2001525282A (en) * 1997-12-09 2001-12-11 ザ・グッドイヤー・タイヤ・アンド・ラバー・カンパニー Antenna for wireless transponder
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JP2002264617A (en) * 2001-03-07 2002-09-18 Hanex Co Ltd Structure for installing rfid tag on tire
JP2004058997A (en) * 2002-07-24 2004-02-26 Goodyear Tire & Rubber Co:The Annular antenna and transponder device, and method for disposing them in pneumatic tire
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JP2008500532A (en) * 2004-05-25 2008-01-10 センスファブ プライベート リミテッド Tire pressure monitoring sensor
KR101091895B1 (en) * 2004-08-21 2011-12-08 삼성테크윈 주식회사 RFID tag for mounting vehicle tire
US8977422B1 (en) 2013-11-06 2015-03-10 The Goodyear Tire & Rubber Company Accoustic/vibration sensor and tire assembly and method of construction thereof
JP2020055460A (en) * 2018-10-03 2020-04-09 Ｔｏｙｏ Ｔｉｒｅ株式会社 tire
JP2020055455A (en) * 2018-10-03 2020-04-09 Ｔｏｙｏ Ｔｉｒｅ株式会社 tire
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