JP2005132177A - Tire sensor pin and tire - Google Patents

Tire sensor pin and tire Download PDF

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Publication number
JP2005132177A
JP2005132177A JP2003369299A JP2003369299A JP2005132177A JP 2005132177 A JP2005132177 A JP 2005132177A JP 2003369299 A JP2003369299 A JP 2003369299A JP 2003369299 A JP2003369299 A JP 2003369299A JP 2005132177 A JP2005132177 A JP 2005132177A
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tire
sensor pin
housing
sensor
end surface
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JP4482860B2 (en
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Yoshiaki Hashimura
嘉章 橋村
Yasushi Hattori
泰 服部
Takashi Kitazaki
剛史 北崎
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Yokohama Rubber Co Ltd
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Yokohama Rubber Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a tire sensor pin which is capable of measuring the physical quantity of a tire and easily fixed to the tire and changed, and the tire having the sensor pin. <P>SOLUTION: A tire 10 with a tire sensor pin mounted thereon is constituted by fitting the tire sensor pin in embedding holes of the same shapes as that of the tire sensor pin 20 which are formed in a carcass 11, belts 12A and 12B and a belt cover 13. The end face of the tire sensor pin 20 on the tire face side is located inside the tire from the surface of the tire 10, and a rotational position identification means is provided on the end face. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、タイヤの所定物理量を検出するセンサーをタイヤ内へ容易に埋設可能なタイヤ用センサーピン及びこれを備えたタイヤに関するものである。   The present invention relates to a tire sensor pin capable of easily embedding a sensor for detecting a predetermined physical quantity of a tire in the tire, and a tire including the tire sensor pin.

従来、タイヤに関する種々の物理量を測定するセンサー及びこれを備えたタイヤが知られている。その一例としては、例えばタイヤと路面間の路面摩擦係数を測定する場合、ベルトコードの一部を磁化しておき、ベルト―トレッド間の相対変位をタイヤ内に埋設した磁気センサーによって測定するものが提案されている。   Conventionally, sensors for measuring various physical quantities related to tires and tires including the same are known. For example, when measuring the road surface friction coefficient between the tire and the road surface, a part of the belt cord is magnetized, and the relative displacement between the belt and the tread is measured by a magnetic sensor embedded in the tire. Proposed.

しかし、車両が一定速度で走行している等、タイヤの路面と接している部分の変形が小さい場合には、ベルト―トレッド間の相対変位が小さいので路面摩擦係数の検出精度が十分ではなかった。   However, when the vehicle is running at a constant speed and the deformation of the part in contact with the road surface of the tire is small, the detection accuracy of the road surface friction coefficient is not sufficient because the relative displacement between the belt and the tread is small. .

そこで、トレッド部にタイヤ表面よりも高いブロック、低いブロックの２つを設けるとともにこれらのブロックにセンサーとして歪ゲージを貼り付けて、２つの歪レベルを測定して両者の差から路面摩擦係数を推定するものが知られている（特許文献１参照。）。
特開２００２−３６８３６号公報 Therefore, two blocks, a block higher than the tire surface and a block lower than the tire surface, are provided on the tread, and a strain gauge is attached to these blocks as a sensor, and the two strain levels are measured and the road surface friction coefficient is estimated from the difference between the two. Is known (see Patent Document 1).
JP 2002-36836 A

しかしながら、前述した前者の従来例では、センサーがタイヤ内に埋設されているためセンサー交換作業が困難であった。また、後者の従来例では高速回転時の遠心力によりセンサーがタイヤから外れないようにトレッド部に対して強固な固定が必要であるが、接着剤で強固に接着してしまうとセンサーが故障した場合には接着部を破壊することが難しいため、センサー交換作業に手間が掛かるという問題点があった。   However, in the former conventional example described above, the sensor replacement work is difficult because the sensor is embedded in the tire. Moreover, in the latter conventional example, it is necessary to firmly fix the tread portion so that the sensor does not come off the tire due to centrifugal force at high speed rotation, but if the adhesive is firmly adhered, the sensor breaks down. In some cases, it is difficult to destroy the bonded portion, and there is a problem that it takes time to replace the sensor.

本発明は前記問題点に鑑みてなされたものであり、その目的とするところは、タイヤの物理量を測定することができ、タイヤへの固定及び交換が容易なタイヤ用センサーピンおよびこれを備えたタイヤを提供することにある。   The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a tire sensor pin that can measure a physical quantity of a tire and can be easily fixed to and replaced with a tire, and a tire sensor pin. To provide tires.

本発明は前記目的を達成するために、タイヤ用センサーピンおよびタイヤは、
柱状部と柱状部に対して垂直な突出部とからなりタイヤのトレッド部に形成された埋込穴に嵌入される筐体と、前記筐体内に設けられ、少なくとも１つの物理量を測定可能なセンサーとからなることを特徴としている。 In order to achieve the above object, the present invention provides a tire sensor pin and a tire.
A housing comprising a columnar portion and a projecting portion perpendicular to the columnar portion and fitted in an embedding hole formed in a tread portion of a tire, and a sensor provided in the housing and capable of measuring at least one physical quantity It is characterized by consisting of.

前記筐体は、前記中心軸に垂直な断面のうち断面積が最も大きい部分に前記突出部を有しており、前記突出部における前記中心軸に垂直な断面が真円ではないものである。   The casing has the protrusion at a portion having the largest cross-sectional area in a cross section perpendicular to the central axis, and the cross section of the protrusion perpendicular to the central axis is not a perfect circle.

また、前記筐体のタイヤ表面側の端面は文字、色彩、或いは形状を有しており、タイヤの表面よりもタイヤ内に位置し、前記端面を底面とする凹部が形成されている。   Further, the end surface of the housing on the tire surface side has characters, colors, or shapes, and is located in the tire with respect to the tire surface, and a recess having the end surface as a bottom surface is formed.

また、タイヤの表面は前記筐体の端面との間に形成される凹部を塞ぐ閉塞部材が設けられており、前記閉塞部材はゴムまたは樹脂或いはゴムと樹脂の複合体のうち何れかによって形成されている。   In addition, the tire surface is provided with a closing member that closes a recess formed between the end surface of the housing and the closing member is formed of rubber, resin, or a composite of rubber and resin. ing.

本発明のタイヤ用センサーピンおよびタイヤによれば、前記筐体に突出部を、前記埋込穴に突出部対応部を有することにより、タイヤに対してデバイスが抜けることを防ぎタイヤに固定することができ、前記突出部の前記中心軸に垂直な断面が真円ではないことにより筐体の自転を防ぐことができる。   According to the tire sensor pin and the tire of the present invention, the protrusion is provided in the housing, and the protrusion is provided in the embedded hole, thereby preventing the device from being detached from the tire and fixing the tire to the tire. Since the cross section perpendicular to the central axis of the protruding portion is not a perfect circle, rotation of the housing can be prevented.

またセンサーピンのタイヤ表面側の端面に表された文字や色彩、或いは端面の形状によって、前記柱状部の中心軸を回転軸とした前記筐体の回転位置を識別できる。
更に、前記端面がタイヤの表面よりもタイヤ内に位置し、前記端面を底面とする凹部が形成され、凹部を塞ぐ閉塞部材が設けられることで、センサーピンの所在が分からないようにすることができるとともに、タイヤの表面が摩耗することによるセンサーピンの損傷を防ぐことができる。 Further, the rotation position of the housing with the central axis of the columnar portion as the rotation axis can be identified by the characters and colors represented on the end surface of the sensor pin on the tire surface side or the shape of the end surface.
Furthermore, the end face is located in the tire rather than the tire surface, a recess having the end face as a bottom surface is formed, and a closing member for closing the recess is provided, so that the location of the sensor pin is not known. In addition, it is possible to prevent damage to the sensor pin due to wear of the tire surface.

図１及至図４は本発明の第１の実施形態を示すものであり、図１はタイヤ用センサーピン装着タイヤを示す要部破断斜視図である。図において、１０はタイヤ用センサーピン装着タイヤ（以下、単にタイヤと称する）で、周知のチューブレスラジアルタイヤである。１１はカーカス、１２Ａ，１２Ｂはベルト、１３はベルトカバー、１４はアンダートレッドを含むキャップトレッド、１５は埋込穴、２０はタイヤ用センサーピンである。但し、ベルトカバー１３は必要に応じて配置する。   1 to 4 show a first embodiment of the present invention, and FIG. 1 is a fragmentary perspective view showing a tire equipped with a sensor pin for a tire. In the figure, reference numeral 10 denotes a tire sensor pin-equipped tire (hereinafter simply referred to as a tire), which is a well-known tubeless radial tire. 11 is a carcass, 12A and 12B are belts, 13 is a belt cover, 14 is a cap tread including an under tread, 15 is an embedding hole, and 20 is a tire sensor pin. However, the belt cover 13 is disposed as necessary.

このラジアル構造ではカーカス１１は、そのカーカスコードが周方向に対してほぼ９０度に配置され、１層或いは２層のカーカスで作られ、その上に２０〜３０度程度のコード角を有するベルト１２Ａ，１２Ｂが互いにコードを交差するように配置されている。   In this radial structure, the carcass 11 has a belt 12A having a carcass cord arranged at approximately 90 degrees with respect to the circumferential direction, made of one or two layers of carcass, and having a cord angle of about 20 to 30 degrees thereon. , 12B are arranged so as to cross the cords.

さらに、これらのベルト１２Ａ，１２Ｂの上にベルトカバー１３、及びキャップトレッド１４が記述の順に配置されている。   Further, a belt cover 13 and a cap tread 14 are arranged on the belts 12A and 12B in the order described.

ここで、キャップトレッド１４とカーカス１１との間に配置された、ゴム引きコード層はラジアルタイヤの場合はベルトと呼ばれ、バイアスタイヤの場合はブレーカと呼ばれている。即ち、バイアス構造では、カーカスが周方向に対して３５〜４５度で配置されており、複数層のカーカスをコードが互いに交差するように重ね合わせられ、この上にカーカスを保護するブレーカが配置される。   Here, the rubberized cord layer disposed between the cap tread 14 and the carcass 11 is called a belt in the case of a radial tire, and is called a breaker in the case of a bias tire. That is, in the bias structure, the carcass is arranged at 35 to 45 degrees with respect to the circumferential direction, and the carcasses of a plurality of layers are overlapped so that the cords cross each other, and a breaker for protecting the carcass is arranged thereon. The

図２に示すようにタイヤ１０の周方向の断面には、カーカス１１とベルト１２Ａ，１２Ｂとベルトカバー１３の上に、タイヤ用センサーピン２０と同じ形状の柱状部対応部１５Ａと突出部対応部１５Ｂとから構成される埋込穴１５が設けられている。図３に示すように、前記柱状部対応部１５Ａにタイヤ用センサーピン２０の柱状部２１Ａが、前記突出部対応部１５Ｂにタイヤ用センサーピン２０の突出部２１Ｂが嵌入された際には、タイヤ用センサーピン２０のタイヤ表面側の端面はタイヤ１０の表面よりもタイヤ内に位置し、前記端面を底面とする凹部が形成されている。   As shown in FIG. 2, the circumferential section of the tire 10 includes a columnar portion corresponding portion 15 </ b> A and a protruding portion corresponding portion on the carcass 11, the belts 12 </ b> A and 12 </ b> B, and the belt cover 13 that have the same shape as the tire sensor pin 20. An embedding hole 15 composed of 15B is provided. As shown in FIG. 3, when the columnar portion 21A of the tire sensor pin 20 is fitted into the columnar portion corresponding portion 15A and the protruding portion 21B of the tire sensor pin 20 is inserted into the protruding portion corresponding portion 15B, the tire The end surface of the sensor pin 20 on the tire surface side is located in the tire with respect to the surface of the tire 10, and a recess having the end surface as a bottom surface is formed.

また、タイヤ１０の表面はタイヤ用センサーピン２０の前記端面との間に形成される凹部を塞ぐ閉塞部材１６が設けられており、閉塞部材１６はゴムまたは樹脂或いはゴムと樹脂の複合体のうち何れかによって形成されている。   The surface of the tire 10 is provided with a closing member 16 that closes a recess formed between the tire sensor pin 20 and the end surface. The closing member 16 is made of rubber, resin, or a composite of rubber and resin. It is formed by either.

このように本実施形態のタイヤ１０によれば、加硫後に埋込穴１５を作製してタイヤ用センサーピン２０を埋め込むことで、タイヤ用センサーピン２０を容易に狙いの場所に位置決めをすることができ、加硫熱によるタイヤ用センサーピン２０の故障を防ぐことができる。尚、埋込穴１５の作製は加硫前にするようにしてもよい。   As described above, according to the tire 10 of the present embodiment, the tire sensor pin 20 can be easily positioned at the target location by making the embedding hole 15 after vulcanization and embedding the tire sensor pin 20. Thus, failure of the tire sensor pin 20 due to heat of vulcanization can be prevented. The embedding hole 15 may be produced before vulcanization.

また、タイヤ１０のゴムが変形し、また変形に対する弾力性を有することにより、タイヤ用センサーピン２０を埋込穴１５に嵌めたり外したりすることができ、容易にタイヤ用センサーピン２０の交換を行うことができる。   Further, since the rubber of the tire 10 is deformed and has elasticity against deformation, the tire sensor pin 20 can be fitted into or removed from the embedding hole 15, and the tire sensor pin 20 can be easily replaced. It can be carried out.

更に、タイヤ１０の表面に形成される凹部をタイヤ１０と違う色の閉塞部材１６で塞ぐことにより、タイヤ用センサーピン２０の所在が分かるようにすることができるとともに、タイヤ表面が摩耗することによって生じるタイヤ用センサーピン２０の損傷を防ぐことができる。尚、タイヤ１０と同じ色の閉塞部材１６で塞ぐことにより、タイヤ用センサーピン２０の所在が分からないようにしてもよい。   Further, by closing the concave portion formed on the surface of the tire 10 with the closing member 16 having a color different from that of the tire 10, the location of the tire sensor pin 20 can be understood and the tire surface is worn. The resulting damage to the tire sensor pin 20 can be prevented. The location of the tire sensor pin 20 may not be known by closing with the closing member 16 of the same color as the tire 10.

タイヤ用センサーピン２０は図４に示すように筐体２１と、筐体内に埋め込まれたセンサー２２から構成されている。筐体２１は更に柱状部２１Ａと、柱状部２１Ａを軸とした垂直な断面のうち断面積が最も大きい部分である突出部２１Ｂとから構成されている。センサー２２は少なくとも１つの物理量を測定することができ、例えば加速度センサーを埋め込むことにより、回転中の各部分での加速度を測定することやそこから変形量を推定することが出来、温度センサーを埋め込むことにより、温度によって変化するタイヤ１０のキャップトレッド１４のトレッドブロックの剛性を推測することに利用する。   As shown in FIG. 4, the tire sensor pin 20 includes a housing 21 and a sensor 22 embedded in the housing. The casing 21 further includes a columnar portion 21A and a protruding portion 21B that is a portion having the largest cross-sectional area in a vertical cross section with the columnar portion 21A as an axis. The sensor 22 can measure at least one physical quantity. For example, by embedding an acceleration sensor, the acceleration at each part during rotation can be measured and a deformation amount can be estimated therefrom, and a temperature sensor is embedded. This is used to estimate the rigidity of the tread block of the cap tread 14 of the tire 10 that changes depending on the temperature.

このように本実施形態のタイヤ用センサーピン２０によれば、突出部２１Ｂの凸部を突出部対応部１５Ｂの凹部に嵌めることにより、高速回転時の遠心力でタイヤ用センサーピン２０が外部に飛び出すことを防ぎ、タイヤに固定することができる。   Thus, according to the tire sensor pin 20 of the present embodiment, the tire sensor pin 20 is exposed to the outside by centrifugal force during high-speed rotation by fitting the protrusion of the protrusion 21B into the recess of the protrusion corresponding part 15B. It can be prevented from popping out and fixed to the tire.

図５及至図１２は本発明の第２の実施形態を示すものである。突出部２１Ｂの前記軸に垂直な断面が真円ではないものの例として、前記断面が三角形であるタイヤ用センサーピン２０を図５に示す。更に、前記断面が六角形で、突出部２１Ｂが柱状部２１Ａに対して端面と端面の間に存在するタイヤ用センサーピン２０を図６に示し、埋込穴１５に図６のタイヤ用センサーピン２０を嵌入した際のタイヤ１０の周方向の断面図を図７に示す。   5 to 12 show a second embodiment of the present invention. FIG. 5 shows a tire sensor pin 20 having a triangular cross section as an example of a cross section perpendicular to the axis of the protrusion 21B that is not a perfect circle. Further, FIG. 6 shows a tire sensor pin 20 having a hexagonal cross section and a protruding portion 21B existing between the end faces with respect to the columnar portion 21A, and the tire sensor pin shown in FIG. FIG. 7 shows a sectional view in the circumferential direction of the tire 10 when 20 is inserted.

図８及至図１２はタイヤ用センサーピン２０のタイヤ表面側の端面に方向表示を備えた実施例である。前記端面に文字が表示されている例として、矢印３１により方向を表示したタイヤ用センサーピン２０を図８に，アルファベットＦの文字３２により方向を表示したタイヤ用センサーピン２０を図９に示す。前記端面が色彩を有している例として、異なる色３３Ａ，３３Ｂによる色分けにより方向を表示したタイヤ用センサーピン２０を図１０に示す。前記端面の形状により方向を示す例として、一本線の打刻３４により方向を表示したタイヤ用センサーピン２０を図１１に、柱状部２１Ａを三角柱３５とすることによって、三角形の向きにより方向を表示したタイヤ用センサーピン２０を図１２に示す。   8 to 12 show an embodiment in which direction indication is provided on the end surface of the tire sensor pin 20 on the tire surface side. As an example in which characters are displayed on the end face, FIG. 8 shows a tire sensor pin 20 whose direction is indicated by an arrow 31, and FIG. 9 shows a tire sensor pin 20 whose direction is indicated by a letter 32 of alphabet F. As an example in which the end face has a color, FIG. 10 shows a tire sensor pin 20 in which the direction is indicated by different colors 33A and 33B. As an example of indicating the direction by the shape of the end face, the tire sensor pin 20 whose direction is indicated by a single-line stamp 34 is shown in FIG. 11, and the columnar portion 21A is a triangular pole 35, so that the direction is indicated by the direction of the triangle. The tire sensor pin 20 is shown in FIG.

このように本実施形態のタイヤ用センサーピン２０によれば、例えば加速度のように方向性のある物理量を測定する場合に、前記断面が真円である場合タイヤ１０の変形や振動によりタイヤ用センサーピン２０が自転することがあり、加速度の向きが変化してしまうという問題点があるが、前記断面が真円ではないことにより自転を防ぐことができる。更に前記端面に表された文字や色彩、或いは端面の形状により、柱状部２１Ａの中心軸を回転軸としたタイヤ用センサーピン２０の回転位置を識別してタイヤ１０に埋め込むことができるため、方向を含め正確な物理量を測定することができる。   As described above, according to the tire sensor pin 20 of the present embodiment, when measuring a directional physical quantity such as acceleration, for example, when the cross section is a perfect circle, the tire sensor is deformed or vibrated by the deformation or vibration of the tire 10. Although there is a problem that the pin 20 may rotate and the direction of acceleration changes, the rotation can be prevented because the cross section is not a perfect circle. Furthermore, the rotation position of the tire sensor pin 20 with the central axis of the columnar portion 21A as the rotation axis can be identified and embedded in the tire 10 by the characters and colors represented on the end surface, or the shape of the end surface, It is possible to measure an accurate physical quantity including

尚、前記２つの実施形態では、埋込穴１５にタイヤ用センサーピン２０を嵌入したものを示したが、タイヤ用センサーピン２０と周囲のゴムの間の隙間を埋めるため、接着剤を用いて塞ぐようにしてもよい。またセンサー２２で測定する物理量として加速度や温度を示したが、その他の物理量として、変形量、電気抵抗値、電気容量等が挙げられ、センサー２２の代わりに、又はセンサー２２とともに、増幅器、Ｖ／Ｆ変換器、発振器、アンテナ等を埋め込むようにしてもよい。   In the two embodiments, the tire sensor pin 20 is inserted into the embedding hole 15, but an adhesive is used to fill the gap between the tire sensor pin 20 and the surrounding rubber. You may make it close. Further, although acceleration and temperature are shown as physical quantities measured by the sensor 22, other physical quantities include deformation amount, electric resistance value, electric capacity and the like. Instead of the sensor 22 or together with the sensor 22, an amplifier, V / An F converter, an oscillator, an antenna, or the like may be embedded.

本発明の第１の実施形態におけるタイヤ用センサーピン装着タイヤを示す要部破断斜視図The principal part fracture | rupture perspective view which shows the tire sensor pin mounting tire in the 1st Embodiment of this invention 本発明の第１の実施形態におけるタイヤ用センサーピン嵌入前のタイヤを示す断面図Sectional drawing which shows the tire before insertion of the sensor pin for tires in the 1st Embodiment of this invention 本発明の第１の実施形態におけるタイヤ用センサーピン嵌入後のタイヤを示す断面図Sectional drawing which shows the tire after insertion of the sensor pin for tires in the 1st Embodiment of this invention 本発明の第１の実施形態におけるタイヤ用センサーピンを示す構成図The block diagram which shows the sensor pin for tires in the 1st Embodiment of this invention 本発明の第２の実施形態におけるタイヤ用センサーピンの突出部の柱状部に垂直な断面が真円ではない例を示す構成図The block diagram which shows the example whose cross section perpendicular | vertical to the columnar part of the protrusion part of the sensor pin for tires in the 2nd Embodiment of this invention is not a perfect circle 本発明の第２の実施形態におけるタイヤ用センサーピンの突出部が柱状部の端面と端面の間に存在する例を示す構成図The block diagram which shows the example which the protrusion part of the sensor pin for tires in the 2nd Embodiment of this invention exists between the end surface of a columnar part. 本発明の第２の実施形態における図６のタイヤ用センサーピン嵌入後のタイヤを示す断面図Sectional drawing which shows the tire after insertion of the sensor pin for tires of FIG. 6 in the 2nd Embodiment of this invention. 本発明の第２の実施形態におけるタイヤ用センサーピンのタイヤ表面側の端面が記号を有している例を示す構成図The block diagram which shows the example in which the end surface by the side of the tire surface of the sensor pin for tires in the 2nd Embodiment of this invention has a symbol 本発明の第２の実施形態におけるタイヤ用センサーピンのタイヤ表面側の端面が文字を有している例を示す構成図The block diagram which shows the example in which the end surface by the side of the tire surface of the sensor pin for tires in the 2nd Embodiment of this invention has a character 本発明の第２の実施形態におけるタイヤ用センサーピンのタイヤ表面側の端面が色彩を有している例を示す構成図The block diagram which shows the example in which the end surface by the side of the tire surface of the sensor pin for tires in the 2nd Embodiment of this invention has color 本発明の第２の実施形態におけるタイヤ用センサーピンのタイヤ表面側の端面が打刻を有している例を示す構成図The block diagram which shows the example in which the end surface by the side of the tire surface of the sensor pin for tires in the 2nd Embodiment of this invention has stamping 本発明の第２の実施形態におけるタイヤ用センサーピンのタイヤ表面側の端面が形状を有している例を示す構成図The block diagram which shows the example in which the end surface by the side of the tire surface of the sensor pin for tires in the 2nd Embodiment of this invention has a shape.

符号の説明Explanation of symbols

１０…タイヤ用センサーピン装着タイヤ、１１…カーカス、１２Ａ，１２Ｂ…ベルト、１３…ベルトカバー、１４…キャップトレッド、１５…埋込穴、１５Ａ…柱状部対応部、１５Ｂ…突出部対応部、１６…閉塞部材、２０…タイヤ用センサーピン、２１…筐体、２１Ａ…柱状部、２１Ｂ…突出部、２２…センサー、３１…矢印、３２…文字、３３Ａ，３３Ｂ…色、３４…打刻、３５…三角柱。   DESCRIPTION OF SYMBOLS 10 ... Tire with sensor pin mounting tire, 11 ... Carcass, 12A, 12B ... Belt, 13 ... Belt cover, 14 ... Cap tread, 15 ... Embedding hole, 15A ... Columnar part corresponding part, 15B ... Projection part corresponding part, 16 DESCRIPTION OF SYMBOLS ... Occlusion member, 20 ... Sensor pin for tire, 21 ... Housing, 21A ... Columnar part, 21B ... Projection part, 22 ... Sensor, 31 ... Arrow, 32 ... Letter, 33A, 33B ... Color, 34 ... Stamping, 35 ... A triangular prism.

Claims (11)

柱状部と柱状部に対して垂直な突出部とからなりタイヤのトレッド部に形成された埋込穴に嵌入される筐体と、前記筐体内に設けられ、少なくとも１つの物理量を測定可能なセンサーとからなることを特徴とするタイヤ用センサーピン。   A housing comprising a columnar portion and a projecting portion perpendicular to the columnar portion and fitted in an embedding hole formed in a tread portion of a tire, and a sensor provided in the housing and capable of measuring at least one physical quantity A tire sensor pin characterized by comprising: 前記筐体は、前記柱状部の中心軸を回転軸とした前記筐体の回転位置を識別する識別手段を備えていることを特徴とする請求項１に記載のタイヤ用センサーピン。   2. The tire sensor pin according to claim 1, wherein the housing includes an identification unit that identifies a rotational position of the housing with a central axis of the columnar portion as a rotation axis. タイヤ表面側の前記筐体の端面に表された文字、色彩、或いは形状によって、前記識別手段が構成されていることを特徴とする請求項２に記載のタイヤ用センサーピン。   3. The tire sensor pin according to claim 2, wherein the identification unit is configured by a character, a color, or a shape represented on an end surface of the housing on a tire surface side. 4. 前記筐体における前記中心軸に垂直な断面のうち断面積が最も大きい部分に前記突出部を有することを特徴とする請求項１または請求項２に記載のタイヤ用センサーピン。   3. The tire sensor pin according to claim 1, wherein the projecting portion is provided in a portion having a largest cross-sectional area in a cross section perpendicular to the central axis in the housing. 4. 前記突出部における前記中心軸に垂直な断面が真円ではないことを特徴とする請求項１または請求項２に記載のタイヤ用センサーピン。   The tire sensor pin according to claim 1 or 2, wherein a cross section perpendicular to the central axis in the projecting portion is not a perfect circle. トレッド部に形成された埋込穴と、前記埋込穴に嵌入されたタイヤ用センサーピンとを備え、前記センサーピンは、柱状部と柱状部に対して垂直な突出部とからなる筐体と、前記筐体内に設けられ、少なくとも１つの物理量を測定可能なセンサーとからなり、前記埋込穴は、前記センサーピンに対応する形状をなした柱状部対応部と突出部対応部とを有することを特徴とするタイヤ。   An embedding hole formed in the tread portion, and a tire sensor pin fitted in the embedding hole, and the sensor pin includes a housing formed of a columnar portion and a protrusion perpendicular to the columnar portion; The sensor is provided in the housing and includes at least one sensor capable of measuring a physical quantity, and the embedding hole has a columnar part corresponding part and a protruding part corresponding part having a shape corresponding to the sensor pin. A characteristic tire. 前記センサーピンは、前記柱状部の中心軸を回転軸とした前記筐体の回転位置を識別する識別手段を備えていることを特徴とする請求項６に記載のタイヤ。   The tire according to claim 6, wherein the sensor pin includes an identification unit that identifies a rotation position of the casing with a central axis of the columnar portion as a rotation axis. 前記突出部における前記中心軸に垂直な断面が真円ではないことを特徴とする請求項７に記載のタイヤ。   The tire according to claim 7, wherein a cross section of the protruding portion perpendicular to the central axis is not a perfect circle. 前記筐体の端面が前記タイヤの表面よりもタイヤ内に位置し、前記端面を底面とする凹部が形成されていることを特徴とする請求項６乃至請求項８の何れかに
記載のタイヤ。 The tire according to any one of claims 6 to 8, wherein an end surface of the housing is located in the tire with respect to a surface of the tire, and a recess having the end surface as a bottom surface is formed. 前記筐体の端面と前記タイヤの表面との間に形成される凹部を塞ぐ閉塞部材が設けられていることを特徴とする請求項９に記載のタイヤ。   The tire according to claim 9, further comprising a closing member that closes a recess formed between an end surface of the housing and the surface of the tire. 前記閉塞部材がゴムまたは樹脂或いはゴムと樹脂の複合体のうち何れかによって形成されていることを特徴とする請求項１０に記載のタイヤ。



The tire according to claim 10, wherein the closing member is formed of any one of rubber, resin, or a composite of rubber and resin.



JP2003369299A 2003-10-29 2003-10-29 Tire sensor pins and tires Expired - Fee Related JP4482860B2 (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007113957A (en) * 2005-10-18 2007-05-10 Hitachi Ltd Friction force sensor and tire with friction force sensor
JP2009113759A (en) * 2007-11-09 2009-05-28 Sumitomo Rubber Ind Ltd Pneumatic tire
JP2010221901A (en) * 2009-03-24 2010-10-07 Sumitomo Rubber Ind Ltd Pneumatic tire and strain sensor used therefor
JP2012232721A (en) * 2011-05-09 2012-11-29 Sumitomo Rubber Ind Ltd Pneumatic tire
WO2017110398A1 (en) * 2015-12-25 2017-06-29 株式会社デンソー Tire-mounted sensor
JP2017154649A (en) * 2016-03-03 2017-09-07 マツダ株式会社 Tire air pressure alarm device for vehicle
DE102017213825A1 (en) 2017-08-08 2019-02-14 Continental Reifen Deutschland Gmbh sensor device
WO2023105825A1 (en) * 2021-12-09 2023-06-15 株式会社ブリヂストン Tire

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007113957A (en) * 2005-10-18 2007-05-10 Hitachi Ltd Friction force sensor and tire with friction force sensor
JP2009113759A (en) * 2007-11-09 2009-05-28 Sumitomo Rubber Ind Ltd Pneumatic tire
JP2010221901A (en) * 2009-03-24 2010-10-07 Sumitomo Rubber Ind Ltd Pneumatic tire and strain sensor used therefor
JP2012232721A (en) * 2011-05-09 2012-11-29 Sumitomo Rubber Ind Ltd Pneumatic tire
WO2017110398A1 (en) * 2015-12-25 2017-06-29 株式会社デンソー Tire-mounted sensor
JP2017114438A (en) * 2015-12-25 2017-06-29 株式会社デンソー Tire mount sensor
US10661617B2 (en) 2015-12-25 2020-05-26 Denso Corporation Tire mount sensor
JP2017154649A (en) * 2016-03-03 2017-09-07 マツダ株式会社 Tire air pressure alarm device for vehicle
DE102017213825A1 (en) 2017-08-08 2019-02-14 Continental Reifen Deutschland Gmbh sensor device
WO2023105825A1 (en) * 2021-12-09 2023-06-15 株式会社ブリヂストン Tire

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