JP2015223777A - Tire vulcanization method and apparatus - Google Patents

Tire vulcanization method and apparatus Download PDF

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JP2015223777A
JP2015223777A JP2014110479A JP2014110479A JP2015223777A JP 2015223777 A JP2015223777 A JP 2015223777A JP 2014110479 A JP2014110479 A JP 2014110479A JP 2014110479 A JP2014110479 A JP 2014110479A JP 2015223777 A JP2015223777 A JP 2015223777A
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bladder
temperature
tire
lead wire
protrusion
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JP6464570B2 (en
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健太 山村
Kenta Yamamura
健太 山村
佐藤 元
Hajime Sato
元 佐藤
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Yokohama Rubber Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a tire vulcanization method and apparatus that measure the vertical temperature difference inside a bladder during tire vulcanization and can effectively uniform the temperature distribution inside the bladder according to the vertical temperature difference at a low cost.SOLUTION: A tire vulcanization method is a method for vulcanizing a pneumatic tire using a tire vulcanization apparatus comprising a mold 9 molding an outer surface of a pneumatic tire T, a bladder 10 inserted into the pneumatic tire T, a pair of temperature measurement means 20 arranged at vertically symmetrical positions on an inner surface of the bladder 10, temperature uniforming means 30 uniforming the internal temperature of the bladder 10, and control means 40 controlling the temperature uniforming means 30 based on the measurement result of the temperature measurement means 20. When the vertical temperature difference calculated from the measurement result of the temperature measurement means 20 reaches a predetermined threshold value during tire vulcanization, the temperature uniforming means 30 is actuated.

Description

本発明は、ブラダーを備えたタイヤ加硫装置を用いて空気入りタイヤを加硫する方法及び装置に関し、更に詳しくは、タイヤ加硫時におけるブラダー内部の上下温度差を測定し、その上下温度差に応じてブラダー内部の温度分布を低コストで効果的に均一化することを可能にしたタイヤ加硫方法及びタイヤ加硫装置に関する。   The present invention relates to a method and an apparatus for vulcanizing a pneumatic tire using a tire vulcanizing apparatus equipped with a bladder, and more specifically, to measure a vertical temperature difference inside a bladder during tire vulcanization, and to detect the vertical temperature difference. The present invention relates to a tire vulcanizing method and a tire vulcanizing apparatus that can effectively uniformize the temperature distribution inside the bladder at low cost.

空気入りタイヤを加硫する場合、モールド内にセットされたグリーンタイヤの内側にブラダーが挿入され、そのブラダー内に加熱加圧媒体が導入される。このような加熱加圧媒体としては、スチームや窒素ガスが挙げられる。ところで、スチームを用いた加硫では、ブラダーの内部でスチームの一部が凝縮してブラダーの下側部分に凝縮水として滞留する。また、スチームと窒素ガスを用いた加硫では、凝縮水の生成に加えて、ブラダーの内部空間の上方に高温のスチームを主とする相が形成され、その下方に窒素ガスを主とする相が形成される。その結果、ブラダーの上下方向において温度分布が不均一になる。   When vulcanizing a pneumatic tire, a bladder is inserted inside a green tire set in a mold, and a heating and pressing medium is introduced into the bladder. Examples of such a heating and pressurizing medium include steam and nitrogen gas. By the way, in the vulcanization using steam, a part of the steam is condensed inside the bladder and stays as condensed water in the lower part of the bladder. In addition, in the vulcanization using steam and nitrogen gas, in addition to the generation of condensed water, a phase mainly composed of high-temperature steam is formed above the internal space of the bladder, and a phase mainly composed of nitrogen gas is formed below the phase. Is formed. As a result, the temperature distribution becomes non-uniform in the vertical direction of the bladder.

このようにしてブラダー内部の温度分布が不均一になると、得られる空気入りタイヤの加硫度が部位によって相違することになるため、要求されるタイヤ性能を十分に発揮できなくなる恐れがある。このような不都合を回避するために、加熱加圧媒体をブラダーの内部で撹拌し、ブラダー内部の温度分布を均一化する種々の方法が提案されている(例えば、特許文献1〜4参照)。   If the temperature distribution inside the bladder becomes non-uniform in this way, the degree of vulcanization of the resulting pneumatic tire will differ depending on the site, and the required tire performance may not be fully exhibited. In order to avoid such an inconvenience, various methods have been proposed in which the heated and pressurized medium is stirred inside the bladder to make the temperature distribution inside the bladder uniform (for example, see Patent Documents 1 to 4).

しかしながら、加熱加圧媒体をブラダーの内部で撹拌するにあたって、その攪拌装置をタイヤ加硫工程において常時稼働させた場合、ブラダー内部の温度分布を均一化することは可能であるものの、その運転コストが大きくなるという問題がある。また、攪拌装置を予め設定されたプログラムに基づいて間欠的に運転することも可能であるが、その場合、ブラダー内部の温度分布が必ずしも均一化されないという問題がある。   However, when the heating and pressurizing medium is stirred inside the bladder, when the stirring device is always operated in the tire vulcanization process, the temperature distribution inside the bladder can be made uniform, but the operating cost is reduced. There is a problem of growing. Moreover, although it is also possible to operate a stirring apparatus intermittently based on the program set beforehand, in that case, there exists a problem that the temperature distribution inside a bladder is not necessarily equalized.

特開2009−29035号公報JP 2009-29035 A 特開2012−218299号公報JP 2012-218299 A 特開2013−922号公報JP 2013-922 A 特開2013−159049号公報JP2013-159049A

本発明の目的は、タイヤ加硫時におけるブラダー内部の上下温度差を測定し、その上下温度差に応じてブラダー内部の温度分布を低コストで効果的に均一化することを可能にしたタイヤ加硫方法及びタイヤ加硫装置を提供することにある。   An object of the present invention is to measure the temperature difference inside the bladder during tire vulcanization and to effectively uniformize the temperature distribution inside the bladder at low cost according to the temperature difference. The object is to provide a vulcanizing method and a tire vulcanizing apparatus.

上記目的を達成するための本発明のタイヤ加硫方法は、空気入りタイヤの外表面を成形するモールドと、該空気入りタイヤの内側に挿入されるブラダーと、前記ブラダーの内面の上下対称位置に設置された一対の温度測定手段と、前記ブラダーの内部温度を均一化する温度均一化手段と、前記温度測定手段の測定結果に基づいて前記温度均一化手段を制御する制御手段とを備えたタイヤ加硫装置を用いて空気入りタイヤを加硫する方法であって、タイヤ加硫時において前記温度測定手段の測定結果から算出される上下温度差が所定の閾値に到達したときに前記温度均一化手段を発動させることを特徴とするものである。   In order to achieve the above object, the tire vulcanizing method of the present invention includes a mold for molding the outer surface of a pneumatic tire, a bladder inserted inside the pneumatic tire, and a vertically symmetrical position on the inner surface of the bladder. A tire comprising a pair of installed temperature measuring means, a temperature equalizing means for equalizing the internal temperature of the bladder, and a control means for controlling the temperature equalizing means based on the measurement result of the temperature measuring means A method of vulcanizing a pneumatic tire using a vulcanizing device, wherein the temperature is equalized when a temperature difference between the upper and lower temperatures calculated from the measurement result of the temperature measuring means reaches a predetermined threshold during tire vulcanization. The means is activated.

上記目的を達成するための本発明のタイヤ加硫装置は、空気入りタイヤの外表面を成形するモールドと、該空気入りタイヤの内側に挿入されるブラダーと、前記ブラダーの内面の上下対称位置に設置された一対の温度測定手段と、前記ブラダーの内部温度を均一化する温度均一化手段と、前記温度測定手段の測定結果に基づいて前記温度均一化手段を制御する制御手段とを備えることを特徴とするものである。   In order to achieve the above object, a tire vulcanizing apparatus of the present invention includes a mold for molding an outer surface of a pneumatic tire, a bladder inserted inside the pneumatic tire, and a vertically symmetrical position on the inner surface of the bladder. A pair of temperature measuring means installed, a temperature equalizing means for equalizing the internal temperature of the bladder, and a control means for controlling the temperature equalizing means based on the measurement result of the temperature measuring means. It is a feature.

本発明では、空気入りタイヤの外表面を成形するモールドと、該空気入りタイヤの内側に挿入されるブラダーと、ブラダーの内面の上下対称位置に設置された一対の温度測定手段と、ブラダーの内部温度を均一化する温度均一化手段と、温度測定手段の測定結果に基づいて温度均一化手段を制御する制御手段とを備えたタイヤ加硫装置を用い、タイヤ加硫時において温度測定手段の測定結果から算出される上下温度差が所定の閾値に到達したときに温度均一化手段を発動させるようにしたので、タイヤ加硫時にブラダー内部で測定された上下温度差に応じてブラダー内部の温度分布を均一化することができる。しかも、ブラダー内部の上下温度差に応じて温度均一化手段を発動させるので、温度均一化手段の運転コストを抑制し、ブラダー内部の温度分布を低コストで効果的に均一化することができる。   In the present invention, a mold that molds the outer surface of the pneumatic tire, a bladder that is inserted inside the pneumatic tire, a pair of temperature measuring means that are installed in a vertically symmetrical position on the inner surface of the bladder, and the interior of the bladder Using a tire vulcanizing apparatus including a temperature equalizing means for equalizing temperature and a control means for controlling the temperature equalizing means based on a measurement result of the temperature measuring means, the temperature measuring means is measured during tire vulcanization. Since the temperature equalization means is activated when the vertical temperature difference calculated from the result reaches a predetermined threshold, the temperature distribution inside the bladder according to the vertical temperature difference measured inside the bladder during tire vulcanization Can be made uniform. In addition, since the temperature equalizing means is activated in accordance with the upper and lower temperature difference inside the bladder, the operating cost of the temperature equalizing means can be suppressed, and the temperature distribution inside the bladder can be equalized effectively at low cost.

本発明において、タイヤ加硫時におけるブラダーの内部空間のタイヤ軸方向の高さHに対して、タイヤ中心位置からタイヤ軸方向に0.3Hとなる位置よりもタイヤ軸方向外側の領域に温度測定手段を配置することが好ましい。これにより、加硫律速部となるタイヤショルダー部付近における上下温度差を測定し、その上下温度差に基づいてブラダー内部の温度分布を効果的に均一化することができる。   In the present invention, with respect to the height H in the tire axial direction of the internal space of the bladder at the time of tire vulcanization, temperature measurement is performed in a region outside the tire axial direction from the position where the tire axial direction is 0.3H from the tire center position Preferably means are arranged. Thereby, the vertical temperature difference in the tire shoulder part vicinity used as a vulcanization | control part can be measured, and the temperature distribution inside a bladder can be equalized effectively based on the vertical temperature difference.

温度均一化手段は、ブラダー内部での加圧媒体又は加熱媒体の循環、ブラダー内部への加圧媒体又は加熱媒体の噴出、或いは、ブラダー内部からの加圧媒体又は加熱媒体の放出を行うことが好ましい。このように加圧媒体又は加熱媒体を利用することにより、温度分布の均一化を安価で効果的に行うことができる。   The temperature equalizing means may circulate the pressurized medium or the heating medium inside the bladder, eject the pressurized medium or the heating medium into the bladder, or release the pressurized medium or the heating medium from the inside of the bladder. preferable. Thus, by using a pressurizing medium or a heating medium, the temperature distribution can be made uniform at low cost and effectively.

温度測定手段は温度測定プローブを含み、ブラダーは円筒状に成形されたブラダー本体を有し、該ブラダー本体の内側の温度測定位置にプローブ固定用の主突起を設けると共に、ブラダー本体の内側の温度測定位置から離間した少なくとも1箇所にリード線係留用の補助突起を設け、温度測定プローブを主突起に固定する一方で、温度測定プローブに繋がるリード線を補助突起に係留することが好ましい。これにより、加硫工程においてブラダー内の任意の箇所の温度を簡単かつ確実に検出することができる。特に、主突起及び補助突起はブラダー本体に対して一体的に成形されたものであり、温度測定プローブ及びそのリード線が主突起及び補助突起に対して取り付けられるので、例えば、接着剤による接着等の手法とは異なって、温度測定プローブ及びそのリード線がブラダー本体から離脱し難く、しかもブラダー本体を劣化させることもない。また、ブラダー本体は加硫工程において大きな伸縮に晒されることになるが、温度測定プローブを主突起に固定することに加えてリード線を補助突起に係留するので、リード線が絡み合って温度測定プローブを脱落させるような事態を確実に防止することができる。   The temperature measurement means includes a temperature measurement probe, and the bladder has a bladder body formed in a cylindrical shape, and is provided with a main protrusion for fixing the probe at a temperature measurement position inside the bladder body, and the temperature inside the bladder body. It is preferable to provide an auxiliary protrusion for anchoring the lead wire at least at one position away from the measurement position, and fix the temperature measurement probe to the main protrusion, while anchoring the lead wire connected to the temperature measurement probe to the auxiliary protrusion. Thereby, the temperature of the arbitrary location in a bladder can be detected easily and reliably in a vulcanization process. In particular, the main protrusion and the auxiliary protrusion are formed integrally with the bladder main body, and the temperature measurement probe and its lead wire are attached to the main protrusion and the auxiliary protrusion. Unlike the above method, the temperature measurement probe and its lead wire are not easily detached from the bladder main body, and the bladder main body is not deteriorated. In addition, the bladder body is exposed to large expansion and contraction during the vulcanization process, but in addition to fixing the temperature measurement probe to the main projection, the lead wire is moored to the auxiliary projection, so the lead wire is entangled and the temperature measurement probe Can be reliably prevented from falling off.

また、主突起と補助突起との間又は補助突起の相互間に懸架されるリード線の懸架部分が弛みを持つようにリード線を補助突起に係留することが好ましい。より具体的には、主突起と補助突起との間又は補助突起の相互間に懸架されるリード線の懸架部分の長さは加硫時のストレッチ状態における懸架部分の両端間の最短距離の1.1倍以上1.5倍以下に設定することが好ましい。これにより、ブラダーがストレッチ状態となった際にリード線に過大な張力が掛かって断線等の不都合が生じるのを確実に回避し、また、リード線の絡み合いを可及的に回避することが可能になる。   Further, it is preferable that the lead wire is anchored to the auxiliary protrusion so that the suspended portion of the lead wire suspended between the main protrusion and the auxiliary protrusion or between the auxiliary protrusions has a slack. More specifically, the length of the suspended portion of the lead wire suspended between the main projection and the auxiliary projection or between the auxiliary projections is 1 of the shortest distance between both ends of the suspended portion in the stretched state during vulcanization. It is preferable to set it to 1 to 1.5 times. As a result, it is possible to reliably avoid inconveniences such as wire breakage due to excessive tension applied to the lead wire when the bladder is stretched, and to avoid entanglement of the lead wire as much as possible. become.

更に、主突起及び補助突起の周囲においてブラダー本体の肉厚を局部的に薄くすることが好ましい。ブラダー本体に対して主突起及び補助突起を一体的に成形した場合、主突起及び補助突起を設けた部位におけるブラダー本体の膜剛性や熱伝導特性が他の部位とは異なることになるが、上述のように主突起及び補助突起の周囲においてブラダー本体の肉厚を局部的に薄くすることにより、膜剛性や熱伝導特性の均一性を改善することができる。   Furthermore, it is preferable to locally reduce the thickness of the bladder body around the main protrusion and the auxiliary protrusion. When the main protrusion and the auxiliary protrusion are formed integrally with the bladder main body, the film rigidity and heat conduction characteristics of the bladder main body at the portion where the main protrusion and the auxiliary protrusion are provided are different from those of the other portions. As described above, the thickness of the bladder main body is locally thinned around the main protrusion and the auxiliary protrusion, so that the film rigidity and the uniformity of the heat conduction characteristics can be improved.

本発明の実施形態からなるタイヤ加硫装置を示す子午線半断面図である。It is a meridian half section view showing a tire vulcanizing device which consists of an embodiment of the present invention. 本発明の実施形態からなるタイヤ加硫方法を示すフローチャートである。It is a flowchart which shows the tire vulcanization method which consists of embodiment of this invention. 本発明の実施形態からなるタイヤ加硫装置に使用されるブラダーを示す子午線断面図である。It is meridian sectional drawing which shows the bladder used for the tire vulcanizing apparatus which consists of embodiment of this invention. ブラダー本体の内側に懸架されたリード線を示す平面図である。It is a top view which shows the lead wire suspended inside the bladder main body. 温度測定プローブが主突起に固定された状態にあるブラダー本体を示す断面図である。It is sectional drawing which shows the bladder main body in the state by which the temperature measurement probe was fixed to the main protrusion. 温度測定プローブのリード線が補助突起に係留された状態にあるブラダー本体を示す断面図である。It is sectional drawing which shows the bladder main body in the state in which the lead wire of the temperature measurement probe was anchored to the auxiliary protrusion.

以下、本発明の構成について添付の図面を参照しながら詳細に説明する。図1は本発明の実施形態からなるタイヤ加硫装置を示すものである。   Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a tire vulcanizing apparatus according to an embodiment of the present invention.

図1に示すように、このタイヤ加硫装置は、空気入りタイヤTの外表面を成形するモールド9と、空気入りタイヤTの内側に挿入されるブラダー10と、モールド9を外部から加熱するための不図示の加熱手段と、ブラダー10の内側に窒素ガス等の加圧媒体及びスチーム等の加熱媒体を供給するための不図示の媒体供給手段とを備えている。モールド9は、空気入りタイヤTのサイドウォール部を成形するための下側サイドプレート1及び上側サイドプレート2と、空気入りタイヤTのビード部を成形するための下側ビードリング3及び上側ビードリング4と、空気入りタイヤTのトレッド部を成形するための複数のセクター5とから構成され、そのモールド9の内側でタイヤTを加硫成形するようになっている。なお、モールド9の構造は特に限定されるものではなく、セクショナルタイプのモールドのほか、二つ割りタイプのモールドを使用することも可能である。   As shown in FIG. 1, the tire vulcanizing apparatus is configured to mold the outer surface of the pneumatic tire T, the bladder 10 inserted inside the pneumatic tire T, and heat the mold 9 from the outside. And a medium supply means (not shown) for supplying a pressurized medium such as nitrogen gas and a heating medium such as steam to the inside of the bladder 10. The mold 9 includes a lower side plate 1 and an upper side plate 2 for forming a sidewall portion of the pneumatic tire T, and a lower bead ring 3 and an upper bead ring for forming a bead portion of the pneumatic tire T. 4 and a plurality of sectors 5 for molding the tread portion of the pneumatic tire T, and the tire T is vulcanized and molded inside the mold 9. The structure of the mold 9 is not particularly limited, and a split-type mold can be used in addition to a sectional type mold.

ブラダー10は、その下端部が下側クランプリング6と下側ビードリング3との間に把持され、その上端部が上側クランプリング7と補助リング8との間に把持されている。図1に示すような加硫状態において、ブラダー10はタイヤTの径方向外側に拡張した状態にあるが、加硫後にタイヤTをモールド内から取り出す際には上側クランプリング7が上方に移動し、それに伴ってブラダー10がタイヤTの内側から抜き取られるようになっている。   The lower end portion of the bladder 10 is held between the lower clamp ring 6 and the lower bead ring 3, and the upper end portion thereof is held between the upper clamp ring 7 and the auxiliary ring 8. In the vulcanized state as shown in FIG. 1, the bladder 10 is expanded outward in the radial direction of the tire T. However, when the tire T is taken out from the mold after vulcanization, the upper clamp ring 7 moves upward. Accordingly, the bladder 10 is extracted from the inside of the tire T.

更に、上記タイヤ加硫装置は、ブラダー10の内面の上下対称位置に設置された一対の温度測定手段20と、ブラダー10の内部温度を均一化する温度均一化手段30と、温度測定手段20の測定結果に基づいて温度均一化手段30を制御する制御手段40とを備えている。   Further, the tire vulcanizing apparatus includes a pair of temperature measuring means 20 installed at symmetrical positions on the inner surface of the bladder 10, a temperature equalizing means 30 for equalizing the internal temperature of the bladder 10, and a temperature measuring means 20. And a control means 40 for controlling the temperature equalizing means 30 based on the measurement result.

温度均一化手段40は、その構成が特に限定されるものではないが、例えば、ブラダー10の内部で加圧媒体又は加熱媒体を循環させる装置、ブラダー10の内部に加圧媒体又は加熱媒体を噴出させる装置、或いは、ブラダー10の内部からの加圧媒体又は加熱媒体を放出させる装置を採用することができる。このように加圧媒体又は加熱媒体を利用してブラダー10の内部を攪拌することにより、温度分布の均一化を安価で効果的に行うことができる。   The structure of the temperature uniformizing means 40 is not particularly limited, but, for example, a device that circulates the pressurized medium or the heating medium inside the bladder 10, or the pressurized medium or the heating medium is ejected inside the bladder 10. Or a device that discharges a pressurized medium or a heating medium from the inside of the bladder 10 can be employed. As described above, by stirring the inside of the bladder 10 using the pressurizing medium or the heating medium, the temperature distribution can be made uniform at low cost and effectively.

上述したタイヤ加硫装置を用いて空気入りタイヤを加硫する場合、タイヤ加硫工程において温度測定手段20の測定結果が制御手段40に入力され、その温度測定手段20の測定結果から上下温度差が算出される。つまり、タイヤ中心位置Cよりも上側の温度測定位置で測定される温度とタイヤ中心位置Cよりも下側の温度測定位置で測定される温度との差が算出される。このような上下温度差が制御手段40において予め設定された閾値に到達したときに、制御手段40が温度均一化手段30を発動させ、ブラダー10の内部の温度分布を均一化する。   When a pneumatic tire is vulcanized using the tire vulcanizing apparatus described above, the measurement result of the temperature measurement means 20 is input to the control means 40 in the tire vulcanization process, and the temperature difference between the upper and lower temperatures is calculated from the measurement result of the temperature measurement means 20. Is calculated. That is, the difference between the temperature measured at the temperature measurement position above the tire center position C and the temperature measured at the temperature measurement position below the tire center position C is calculated. When such a temperature difference reaches a preset threshold value in the control means 40, the control means 40 activates the temperature equalizing means 30 to equalize the temperature distribution inside the bladder 10.

図2は本発明の実施形態からなるタイヤ加硫方法を示すフローチャートである。未加硫状態の空気入りタイヤTをモールド9内に投入した後、図2に示すように、空気入りタイヤTの加硫を開始し(ステップS1)、制御手段40による温度均一化手段30の制御を開始する(ステップS2)。次いで、タイヤ加硫時における温度測定手段20の測定結果を利用してブラダー10内の温度分布を計測し(ステップS3)、温度分布に関する対策の要否を判断する(ステップS4)。対策の要否はブラダー10内の上下温度差が所定の閾値に達しているか否かで判断される。ステップS4において対策が必要であると判断された場合、温度均一化手段30を発動させた後(ステップS5)、加硫の終了を判断する(ステップS7)。一方、ステップS4において対策が必要ではないと判断された場合、温度均一化手段30を停止状態にし(ステップS6)、加硫の終了を判断する(ステップS7)。ステップS7において加硫を終了させると判断された場合、温度均一化手段30を停止状態にし(ステップS8)、一連の加硫工程を終了する。一方、ステップS7において加硫を未だ終了させないと判断された場合、ステップS3に戻ってブラダー10内の温度分布を再び計測する。   FIG. 2 is a flowchart showing a tire vulcanizing method according to an embodiment of the present invention. After putting the unvulcanized pneumatic tire T into the mold 9, as shown in FIG. 2, vulcanization of the pneumatic tire T is started (step S 1), and the temperature equalizing means 30 of the control means 40 is controlled. Control is started (step S2). Next, the temperature distribution in the bladder 10 is measured using the measurement result of the temperature measuring means 20 at the time of tire vulcanization (step S3), and it is determined whether or not a countermeasure for the temperature distribution is necessary (step S4). The necessity of the measure is determined by whether or not the temperature difference between the upper and lower sides in the bladder 10 has reached a predetermined threshold value. If it is determined in step S4 that countermeasures are required, after the temperature equalizing means 30 is activated (step S5), it is determined that vulcanization is completed (step S7). On the other hand, if it is determined in step S4 that no countermeasure is required, the temperature equalization means 30 is stopped (step S6), and the end of vulcanization is determined (step S7). If it is determined in step S7 that the vulcanization is to be terminated, the temperature equalizing means 30 is stopped (step S8), and the series of vulcanization steps is terminated. On the other hand, if it is determined in step S7 that the vulcanization is not yet finished, the process returns to step S3 and the temperature distribution in the bladder 10 is measured again.

上述したタイヤ加硫方法では、空気入りタイヤTの外表面を成形するモールド9と、該空気入りタイヤTの内側に挿入されるブラダー10と、ブラダー10の内面の上下対称位置に設置された一対の温度測定手段20と、ブラダー10の内部温度を均一化する温度均一化手段30と、温度測定手段20の測定結果に基づいて温度均一化手段30を制御する制御手段40とを備えたタイヤ加硫装置を用い、タイヤ加硫時において温度測定手段20の測定結果から算出される上下温度差が所定の閾値に到達したときに温度均一化手段30を発動させるようにしたので、タイヤ加硫時にブラダー10内で測定された上下温度差に応じてブラダー10内の温度分布を均一化することができる。しかも、ブラダー10内の上下温度差に応じて温度均一化手段30を発動させるので、温度均一化手段30の運転コストを抑制し、ブラダー10内の温度分布を低コストで効果的に均一化することができる。   In the tire vulcanization method described above, a mold 9 that molds the outer surface of the pneumatic tire T, a bladder 10 that is inserted into the inside of the pneumatic tire T, and a pair installed at symmetrical positions on the inner surface of the bladder 10. Tire temperature measuring means 20, temperature equalizing means 30 for equalizing the internal temperature of the bladder 10, and control means 40 for controlling the temperature equalizing means 30 based on the measurement result of the temperature measuring means 20. The temperature equalizing means 30 is activated when the temperature difference calculated from the measurement result of the temperature measuring means 20 reaches a predetermined threshold during tire vulcanization. The temperature distribution in the bladder 10 can be made uniform according to the upper and lower temperature difference measured in the bladder 10. In addition, since the temperature equalizing means 30 is activated in accordance with the upper and lower temperature difference in the bladder 10, the operating cost of the temperature equalizing means 30 is suppressed, and the temperature distribution in the bladder 10 is effectively equalized at a low cost. be able to.

上述したタイヤ加硫装置において、図1に示すように、タイヤ加硫時におけるブラダー10の内部空間のタイヤ軸方向の高さH(上下スパン)に対して、タイヤ中心位置からタイヤ軸方向両側に向かって0.3Hとなる位置よりもタイヤ軸方向外側の領域Xに温度測定手段20を配置すると良い。これにより、加硫律速部となる空気入りタイヤTのショルダー部付近における上下温度差を測定し、その上下温度差に基づいてブラダー10の内部の温度分布を効果的に均一化することができる。   In the tire vulcanizing apparatus described above, as shown in FIG. 1, with respect to the height H (vertical span) in the tire axial direction of the internal space of the bladder 10 during tire vulcanization, from the tire center position to both sides in the tire axial direction. The temperature measuring means 20 may be disposed in the region X on the outer side in the tire axial direction from the position where the distance becomes 0.3H. Thereby, the vertical temperature difference in the shoulder part vicinity of the pneumatic tire T used as a vulcanization | control part can be measured, and the temperature distribution inside the bladder 10 can be equalized effectively based on the vertical temperature difference.

なお、ブラダー10の内部空間のタイヤ軸方向の高さHの範囲内において温度測定手段20をタイヤ軸方向の最外側位置に配置した場合、タイヤ軸方向の下側位置では温度測定手段20がスチームの凝縮により生成される凝固水に浸かったり、タイヤ軸方向の上側位置では温度測定手段20がタイヤサイド部付近の温度を検出したりすることになるため、高さHの範囲の上端及び下端からの距離が高さHの10%又は20mmのいずれか小さい値となる位置よりもタイヤ軸方向外側となる領域には温度測定手段20を配置しないことが望ましい。   When the temperature measuring means 20 is disposed at the outermost position in the tire axial direction within the range of the height H in the tire axial direction of the internal space of the bladder 10, the temperature measuring means 20 is steamed at the lower position in the tire axial direction. From the upper end and lower end of the range of the height H, the temperature measuring means 20 detects the temperature near the tire side portion at the upper position in the tire axial direction. It is desirable not to arrange the temperature measuring means 20 in a region that is on the outer side in the tire axial direction with respect to a position where the distance is 10% of the height H or 20 mm whichever is smaller.

図3〜図6は本発明の実施形態からなるタイヤ加硫装置に使用されるブラダーの具体例を示すものである。図3に示すように、ブラダー10は、円筒状に成形されたブラダー本体11を有し、該ブラダー本体11の内側の任意の温度測定位置に該ブラダー本体11に対して一体的に成形されたプローブ固定用の主突起12を備えると共に、ブラダー本体11の内側の温度測定位置から離間した少なくとも1箇所に該ブラダー本体11に対して一体的に成形されたリード線係留用の補助突起13を備えている。ここでは、ブラダー本体11の内側に複数の温度測定位置が設定されているため、ブラダー本体11の内面には複数の主突起12が配設されている。また、1つの主突起12に対して複数個の補助突起13が配設されているが、好ましくは1つの主突起12に対して3〜5個の補助突起13を配設するのが良い。   3-6 shows the specific example of the bladder used for the tire vulcanizer which consists of embodiment of this invention. As shown in FIG. 3, the bladder 10 has a bladder main body 11 formed in a cylindrical shape, and is integrally formed with the bladder main body 11 at an arbitrary temperature measurement position inside the bladder main body 11. A main protrusion 12 for fixing the probe is provided, and an auxiliary protrusion 13 for anchoring a lead wire integrally formed with the bladder main body 11 is provided at at least one position apart from the temperature measurement position inside the bladder main body 11. ing. Here, since a plurality of temperature measurement positions are set inside the bladder body 11, a plurality of main projections 12 are disposed on the inner surface of the bladder body 11. A plurality of auxiliary protrusions 13 are provided for one main protrusion 12, but preferably 3 to 5 auxiliary protrusions 13 are provided for one main protrusion 12.

一方、温度測定手段20は温度測定プローブ14及びそのリード線15を含む温度センサとして構成されている。温度センサとしては、熱電対、白金抵抗温度計、サーミスター等から適宜選択することができる。いずれの場合も、温度測定部である温度測定プローブ14と、その温度測定部から開始するリード線15とを備えている。上述したブラダー10においては、主突起12及び補助突起13を利用して、温度測定プローブ14及びそのリード線15を含む温度センサが設置されている。即ち、温度測定プローブ14は主突起12に固定され、該温度測定プローブ14に繋がるリード線15が補助突起13に係留される。主突起12に対する温度測定プローブ14の固定方法及び補助突起13に対するリード線15の係留方法は特に限定されるものではないが、例えば、貫通孔への挿入、結紮(結び付けによる固定)、加締めを例示することができる。   On the other hand, the temperature measuring means 20 is configured as a temperature sensor including the temperature measuring probe 14 and its lead wire 15. As a temperature sensor, it can select from a thermocouple, a platinum resistance thermometer, a thermistor, etc. suitably. In either case, a temperature measurement probe 14 that is a temperature measurement unit and a lead wire 15 starting from the temperature measurement unit are provided. In the above-described bladder 10, a temperature sensor including the temperature measurement probe 14 and its lead wire 15 is installed using the main protrusion 12 and the auxiliary protrusion 13. That is, the temperature measurement probe 14 is fixed to the main protrusion 12, and the lead wire 15 connected to the temperature measurement probe 14 is anchored to the auxiliary protrusion 13. The method for fixing the temperature measurement probe 14 to the main protrusion 12 and the method for anchoring the lead wire 15 to the auxiliary protrusion 13 are not particularly limited. For example, insertion into a through hole, ligation (fixing by tying), and caulking are performed. It can be illustrated.

図5においては、温度測定プローブ14が結束部材16を用いた結紮により主突起12に固定されている。一方、図6においては、補助突起13に貫通孔17が形成されており、その貫通孔17にリード線15を挿入することにより、該リード線15が補助突起13に係留されている。いずれの場合も、ブラダー本体11の内面から突出した主突起12又は補助突起13に対して温度測定プローブ14又はリード線15が機械的な結合力に基づいて取り付けられている   In FIG. 5, the temperature measurement probe 14 is fixed to the main protrusion 12 by ligation using the binding member 16. On the other hand, in FIG. 6, a through hole 17 is formed in the auxiliary protrusion 13, and the lead wire 15 is anchored to the auxiliary protrusion 13 by inserting the lead wire 15 into the through hole 17. In any case, the temperature measurement probe 14 or the lead wire 15 is attached to the main protrusion 12 or the auxiliary protrusion 13 protruding from the inner surface of the bladder main body 11 based on the mechanical coupling force.

複数の温度測定プローブ14に繋がる複数のリード線15はそれぞれ補助突起13によって案内されてブラダー10の一方の端部からブラダー10の外部に引き出され、不図示の測定用デバイスに接続される。タイヤ加硫装置において、リード線15は下側クランプリング6を貫通するようにしてブラダー10の外部に引き出しても良く、或いは、中心機構を通してブラダー10の外部に引き出しても良いが、いずれの場合も気密性を適切に確保することが必要である。   The plurality of lead wires 15 connected to the plurality of temperature measurement probes 14 are guided by the auxiliary protrusions 13 and are drawn out of the bladder 10 from one end of the bladder 10 and connected to a measurement device (not shown). In the tire vulcanizing apparatus, the lead wire 15 may be drawn out of the bladder 10 so as to penetrate the lower clamp ring 6, or may be drawn out of the bladder 10 through a central mechanism. It is necessary to ensure airtightness appropriately.

上述のようにブラダー10の内部に温度測定プローブ14及びそのリード線15を含む温度測定手段20を設置したタイヤ加硫装置では、ブラダー本体11の内側の温度測定位置にプローブ固定用の主突起12を設けると共に、ブラダー本体11の内側の温度測定位置から離間した少なくとも1箇所にリード線係留用の補助突起13を設け、温度測定プローブ14を主突起12に固定する一方で、温度測定プローブ14に繋がるリード線15を補助突起13に係留しているので、加硫工程において温度測定プローブ14に基づいてブラダー10内の任意の箇所の温度を簡単かつ確実に検出することができる。   As described above, in the tire vulcanizing apparatus in which the temperature measuring means 20 including the temperature measuring probe 14 and the lead wire 15 is installed inside the bladder 10, the main protrusion 12 for fixing the probe at the temperature measuring position inside the bladder body 11. And an auxiliary protrusion 13 for anchoring the lead wire is provided at least at one position away from the temperature measurement position inside the bladder body 11, and the temperature measurement probe 14 is fixed to the main protrusion 12, while the temperature measurement probe 14 is Since the connecting lead wire 15 is moored to the auxiliary protrusion 13, the temperature at an arbitrary location in the bladder 10 can be easily and reliably detected based on the temperature measurement probe 14 in the vulcanization process.

ここで、例えば、温度測定プローブ14をブラダー本体11の内面に対して接着剤で接着した場合、加硫工程の繰り返しにより温度測定プローブ14が離脱したり、或いは、接着剤の影響によりブラダー本体11が局部的に劣化したりする恐れがある。しかしながら、主突起12及び補助突起13はブラダー本体11に対して一体的に成形されたものであり、温度測定プローブ14及びそのリード線15が主突起12及び補助突起13に対して機械的に取り付けられるので、温度測定プローブ14及びそのリード線15がブラダー本体11から離脱し難く、しかもブラダー本体11を劣化させることもない。   Here, for example, when the temperature measurement probe 14 is bonded to the inner surface of the bladder main body 11 with an adhesive, the temperature measurement probe 14 is detached by repetition of the vulcanization process, or the bladder main body 11 is influenced by the adhesive. May deteriorate locally. However, the main protrusion 12 and the auxiliary protrusion 13 are formed integrally with the bladder body 11, and the temperature measurement probe 14 and its lead wire 15 are mechanically attached to the main protrusion 12 and the auxiliary protrusion 13. Therefore, the temperature measurement probe 14 and its lead wire 15 are not easily detached from the bladder main body 11, and the bladder main body 11 is not deteriorated.

また、ブラダー本体11は加硫工程において大きな伸縮に晒されることになるが、温度測定プローブ14を主突起12に固定すると共にリード線15を補助突起13に係留しているので、リード線15が絡み合って温度測定プローブ14を脱落させるような事態を確実に防止することができる。   In addition, the bladder body 11 is exposed to large expansion and contraction in the vulcanization process, but the temperature measurement probe 14 is fixed to the main projection 12 and the lead wire 15 is moored to the auxiliary projection 13. It is possible to reliably prevent a situation in which the temperature measurement probe 14 is entangled and dropped.

上記ブラダー10においては、図4に示すように、主突起12と補助突起13との間(又は補助突起13の相互間)に懸架されるリード線15の懸架部分15Xが弛みを持つようにリード線15を補助突起13に対して係留すると良い。より具体的には、主突起12と補助突起13との間(又は補助突起13の相互間)に懸架されるリード線15の懸架部分15Xの長さは加硫時のストレッチ状態(図1の状態)における懸架部分15Xの両端間の最短距離Dの1.1倍以上1.5倍以下に設定すると良い。これにより、ブラダー10がストレッチ状態となった際にリード線15に過大な張力が掛かって断線等の不都合が生じるのを確実に回避し、また、リード線15の絡み合いを可及的に回避することができる。ここで、懸架部分15Xの長さが加硫時のストレッチ状態における懸架部分15Xの両端間の最短距離Dの1.1倍より小さいとリード線15に過大な張力が掛かるのを確実に回避することが困難になり、逆に1.5倍よりも大きいとリード線15に絡み合いを生じ易くなる。なお、リード線15の係留間隔を狭くし、懸架部分15Xを短くすることにより、ブラダー本体11の変形に伴うリード線15の踊りが小さくなるが、補助突起13を過度に多く設置するとブラダー10の加工コストが増大するため、補助突起13の設置数は必要最小限に留めることが望ましい。   In the bladder 10, as shown in FIG. 4, the lead portion 15X of the lead wire 15 suspended between the main projection 12 and the auxiliary projection 13 (or between the auxiliary projections 13) is loosened. The line 15 may be moored with respect to the auxiliary protrusion 13. More specifically, the length of the suspended portion 15X of the lead wire 15 suspended between the main protrusion 12 and the auxiliary protrusion 13 (or between the auxiliary protrusions 13) is in a stretched state during vulcanization (see FIG. 1). In the state), it may be set to 1.1 times or more and 1.5 times or less of the shortest distance D between both ends of the suspended portion 15X. As a result, when the bladder 10 is in the stretched state, excessive tension is applied to the lead wire 15 so that inconvenience such as disconnection is reliably avoided, and entanglement of the lead wire 15 is avoided as much as possible. be able to. Here, if the length of the suspended portion 15X is smaller than 1.1 times the shortest distance D between both ends of the suspended portion 15X in the stretched state during vulcanization, it is possible to reliably avoid applying excessive tension to the lead wire 15. On the other hand, if it is larger than 1.5 times, the lead wire 15 tends to be entangled. In addition, by narrowing the mooring interval of the lead wires 15 and shortening the suspension portion 15X, the dance of the lead wires 15 accompanying the deformation of the bladder body 11 is reduced. However, if too many auxiliary projections 13 are installed, the bladder 10 Since the processing cost increases, it is desirable to keep the number of auxiliary projections 13 to a minimum.

上記ブラダー10において、主突起12及び補助突起13の周囲においてブラダー本体11の肉厚を局部的に薄くすると良い。図5及び図6においては、主突起12及び補助突起13の周囲に環状の窪み部18が形成されており、窪み部18が形成された部位におけるブラダー本体11の厚さはそれ以外の部位よりも薄くなっている。ブラダー本体11に対して主突起12及び補助突起13を一体的に成形した場合、主突起12及び補助突起13を設けた部位におけるブラダー本体の膜剛性や熱伝導特性が他の部位とは異なることになるが、主突起12及び補助突起13の周囲においてブラダー本体11の肉厚を局部的に薄くすることにより、膜剛性や熱伝導特性の均一性を改善することができる。つまり、窪み部18を形成した場合、主突起12及び補助突起13の付加により局部的に増大した膜剛性を緩和し、主突起12及び補助突起13の付加により局部的に低下した熱伝導特性を補完することができる。   In the bladder 10, the thickness of the bladder body 11 may be locally reduced around the main protrusion 12 and the auxiliary protrusion 13. 5 and 6, an annular recess 18 is formed around the main protrusion 12 and the auxiliary protrusion 13, and the thickness of the bladder body 11 in the portion where the recess 18 is formed is larger than that of the other portions. Is also thinner. When the main protrusion 12 and the auxiliary protrusion 13 are formed integrally with the bladder main body 11, the film rigidity and heat conduction characteristics of the bladder main body at the portion where the main protrusion 12 and the auxiliary protrusion 13 are provided are different from other portions. However, by locally reducing the thickness of the bladder main body 11 around the main protrusion 12 and the auxiliary protrusion 13, the film rigidity and the uniformity of the heat conduction characteristics can be improved. That is, when the depression 18 is formed, the film rigidity increased locally by the addition of the main protrusion 12 and the auxiliary protrusion 13 is alleviated, and the heat conduction characteristics that are locally decreased by the addition of the main protrusion 12 and the auxiliary protrusion 13 are reduced. Can be complemented.

空気入りタイヤの外表面を成形するモールドと、該空気入りタイヤの内側に挿入されるブラダーとを備えたタイヤ加硫装置を用い、その内部温度を均一化するための手段だけを異ならせて空気入りタイヤの加硫を行った。   Using a tire vulcanizer equipped with a mold for molding the outer surface of a pneumatic tire and a bladder inserted inside the pneumatic tire, only the means for equalizing the internal temperature is different. The contained tire was vulcanized.

実施例1:
タイヤ加硫装置において、ブラダーの内面の上下対称位置に設置された一対の温度測定手段と、ブラダーの内部温度を均一化する温度均一化手段と、温度測定手段の測定結果に基づいて温度均一化手段を制御する制御手段とを設けた。そして、タイヤ加硫時において温度測定手段の測定結果から算出される上下温度差が所定の閾値に到達したときに温度均一化手段を発動させた。温度測定手段の温度測定プローブは、タイヤ加硫時におけるブラダーの内部空間のタイヤ軸方向の高さHに対して、タイヤ中心位置からタイヤ軸方向に0.4Hとなる位置に設置した。温度均一化手段としては、加圧媒体又は加熱媒体の循環装置を設置した。制御手段が温度均一化手段を発動させるための上下温度差の閾値は2℃とした。
Example 1:
In a tire vulcanizer, a pair of temperature measuring means installed at symmetrical positions on the inner surface of the bladder, a temperature equalizing means for equalizing the internal temperature of the bladder, and temperature uniformity based on the measurement results of the temperature measuring means And a control means for controlling the means. Then, the temperature equalizing means was activated when the upper and lower temperature difference calculated from the measurement result of the temperature measuring means reached a predetermined threshold during tire vulcanization. The temperature measuring probe of the temperature measuring means was installed at a position that is 0.4H from the tire center position to the tire axial direction with respect to the height H in the tire axial direction of the internal space of the bladder during tire vulcanization. As the temperature uniformizing means, a pressurized medium or a heating medium circulation device was installed. The upper and lower temperature difference threshold for the control means to activate the temperature equalization means was 2 ° C.

実施例2:
制御手段が温度均一化手段を発動させるための上下温度差の閾値を5℃としたこと以外は、実施例1と同一条件とした。
Example 2:
The conditions were the same as those in Example 1, except that the upper and lower temperature difference threshold for causing the control means to activate the temperature equalizing means was 5 ° C.

比較例1:
温度均一化手段と制御手段を設けていないこと以外は、実施例1と同一条件とした。なお、実施例1と同様にブラダーの内面の上下対称位置に設置された一対の温度測定手段により加硫時に各部位での温度を測定した。
Comparative Example 1:
The conditions were the same as in Example 1 except that no temperature uniformizing means and control means were provided. In addition, the temperature in each part was measured at the time of vulcanization by a pair of temperature measuring means installed in the vertically symmetrical position on the inner surface of the bladder as in Example 1.

比較例2:
温度測定手段と制御手段を設けずに温度均一化手段を終始運転したこと以外は、実施例1と同一条件とした。
Comparative Example 2:
The conditions were the same as in Example 1 except that the temperature equalizing means was operated all the time without providing the temperature measuring means and the control means.

上述した実施例1,2及び比較例1,2に係るタイヤ加硫方法について、温度均一化手段の運転コストを求めた。その評価結果は、比較例2を100とする指数にて表1に示した。また、実施例1,2及び比較例1,2に係るタイヤ加硫方法において、上下2箇所での温度測定値に基づいて各部位での等価加硫量を求め、下側部位での等価加硫量に対する上側部位での等価加硫量の比率(以下、「上下加硫量差」という)を算出し、これを表1に併せて示した。   Regarding the tire vulcanizing methods according to Examples 1 and 2 and Comparative Examples 1 and 2 described above, the operating cost of the temperature uniformizing means was obtained. The evaluation results are shown in Table 1 as an index with Comparative Example 2 taken as 100. Further, in the tire vulcanization methods according to Examples 1 and 2 and Comparative Examples 1 and 2, the equivalent vulcanization amount at each part is obtained based on the temperature measurement values at the upper and lower parts, and the equivalent vulcanization at the lower part is obtained. The ratio of the equivalent vulcanization amount at the upper part relative to the vulcanization amount (hereinafter referred to as “upper and lower vulcanization amount difference”) was calculated and is shown in Table 1 together.

Figure 2015223777
Figure 2015223777

表1から判るように、実施例1,2のタイヤ加硫方法では、温度均一化手段を設置していない比較例1に比べて上下加硫量差が大幅に低減されており、しかも、温度均一化手段を終始運転した比較例2に比べて運連コストが大幅に低減されていた。   As can be seen from Table 1, in the tire vulcanization methods of Examples 1 and 2, the difference in the upper and lower vulcanization amounts is greatly reduced as compared with Comparative Example 1 in which no temperature equalizing means is installed, and the temperature Compared to Comparative Example 2 in which the homogenizing means was operated from start to finish, the running cost was significantly reduced.

1,2 サイドプレート
3,4 ビードリング
5 セクター
9 モールド
10 ブラダー
20 温度測定手段
30 温度均一化手段
40 制御手段
T 空気入りタイヤ
DESCRIPTION OF SYMBOLS 1, 2 Side plate 3, 4 Bead ring 5 Sector 9 Mold 10 Bladder 20 Temperature measuring means 30 Temperature equalizing means 40 Control means T Pneumatic tire

Claims (10)

空気入りタイヤの外表面を成形するモールドと、該空気入りタイヤの内側に挿入されるブラダーと、前記ブラダーの内面の上下対称位置に設置された一対の温度測定手段と、前記ブラダーの内部温度を均一化する温度均一化手段と、前記温度測定手段の測定結果に基づいて前記温度均一化手段を制御する制御手段とを備えたタイヤ加硫装置を用いて空気入りタイヤを加硫する方法であって、タイヤ加硫時において前記温度測定手段の測定結果から算出される上下温度差が所定の閾値に到達したときに前記温度均一化手段を発動させることを特徴とするタイヤ加硫方法。   A mold for molding the outer surface of the pneumatic tire, a bladder inserted inside the pneumatic tire, a pair of temperature measuring means installed at vertically symmetrical positions on the inner surface of the bladder, and an internal temperature of the bladder This is a method of vulcanizing a pneumatic tire using a tire vulcanizing apparatus including a temperature equalizing means for equalizing and a control means for controlling the temperature equalizing means based on a measurement result of the temperature measuring means. The tire vulcanizing method is characterized in that the temperature equalizing means is activated when a temperature difference between the upper and lower temperatures calculated from the measurement result of the temperature measuring means reaches a predetermined threshold during tire vulcanization. タイヤ加硫時における前記ブラダーの内部空間のタイヤ軸方向の高さHに対して、タイヤ中心位置からタイヤ軸方向に0.3Hとなる位置よりもタイヤ軸方向外側の領域に前記温度測定手段を配置したことを特徴とする請求項1に記載のタイヤ加硫方法。   The temperature measuring means is provided in a region outside the tire axial direction from a position where the height H in the tire axial direction of the internal space of the bladder during tire vulcanization is 0.3 H from the tire center position in the tire axial direction. The tire vulcanizing method according to claim 1, wherein the tire vulcanizing method is arranged. 前記温度均一化手段が、前記ブラダー内部での加圧媒体又は加熱媒体の循環、前記ブラダー内部への加圧媒体又は加熱媒体の噴出、或いは、前記ブラダー内部からの加圧媒体又は加熱媒体の放出を行うことを特徴とする請求項1又は2に記載のタイヤ加硫方法。   The temperature equalizing means circulates the pressurized medium or the heating medium inside the bladder, the ejection of the pressurized medium or the heating medium into the bladder, or the discharge of the pressurized medium or the heating medium from the inside of the bladder. The tire vulcanizing method according to claim 1, wherein the tire vulcanizing method is performed. 前記温度測定手段が温度測定プローブを含み、前記ブラダーが円筒状に成形されたブラダー本体を有し、該ブラダー本体の内側の温度測定位置に該ブラダー本体に対して一体的に成形されたプローブ固定用の主突起を設けると共に、前記ブラダー本体の内側の前記温度測定位置から離間した少なくとも1箇所に該ブラダー本体に対して一体的に成形されたリード線係留用の補助突起を設け、前記温度測定プローブを記主突起に固定する一方で、前記温度測定プローブに繋がるリード線を前記補助突起に係留したことを特徴とする請求項1〜3のいずれかに記載のタイヤ加硫方法。   The temperature measurement means includes a temperature measurement probe, the bladder has a bladder body formed in a cylindrical shape, and is fixed to the bladder body integrally with the bladder body at a temperature measurement position inside the bladder body. And a lead wire anchoring auxiliary protrusion formed integrally with the bladder main body at least at one location spaced from the temperature measurement position inside the bladder main body, and the temperature measurement The tire vulcanizing method according to any one of claims 1 to 3, wherein a lead wire connected to the temperature measurement probe is anchored to the auxiliary protrusion while the probe is fixed to the main protrusion. 前記主突起と前記補助突起との間又は前記補助突起の相互間に懸架される前記リード線の懸架部分が弛みを持つように前記リード線を前記補助突起に係留したことを特徴とする請求項4に記載のタイヤ加硫方法。   The lead wire is anchored to the auxiliary protrusion so that a suspended portion of the lead wire suspended between the main protrusion and the auxiliary protrusion or between the auxiliary protrusions has a slack. 5. The tire vulcanizing method according to 4. 空気入りタイヤの外表面を成形するモールドと、該空気入りタイヤの内側に挿入されるブラダーと、前記ブラダーの内面の上下対称位置に設置された一対の温度測定手段と、前記ブラダーの内部温度を均一化する温度均一化手段と、前記温度測定手段の測定結果に基づいて前記温度均一化手段を制御する制御手段とを備えることを特徴とするタイヤ加硫装置。   A mold for molding the outer surface of the pneumatic tire, a bladder inserted inside the pneumatic tire, a pair of temperature measuring means installed at vertically symmetrical positions on the inner surface of the bladder, and an internal temperature of the bladder A tire vulcanizing apparatus, comprising: a temperature equalizing means for equalizing; and a control means for controlling the temperature equalizing means based on a measurement result of the temperature measuring means. タイヤ加硫時における前記ブラダーの内部空間のタイヤ軸方向の高さHに対して、タイヤ中心位置からタイヤ軸方向に0.3Hとなる位置よりもタイヤ軸方向外側の領域に前記温度測定手段を配置したことを特徴とする請求項6に記載のタイヤ加硫装置。   The temperature measuring means is provided in a region outside the tire axial direction from a position where the height H in the tire axial direction of the internal space of the bladder during tire vulcanization is 0.3 H from the tire center position in the tire axial direction. The tire vulcanizing apparatus according to claim 6, wherein the tire vulcanizing apparatus is arranged. 前記温度均一化手段が、前記ブラダー内部での加圧媒体又は加熱媒体の循環、前記ブラダー内部への加圧媒体又は加熱媒体の噴出、或いは、前記ブラダー内部からの加圧媒体又は加熱媒体の放出を行うことを特徴とする請求項6又は7に記載のタイヤ加硫装置。   The temperature equalizing means circulates the pressurized medium or the heating medium inside the bladder, the ejection of the pressurized medium or the heating medium into the bladder, or the discharge of the pressurized medium or the heating medium from the inside of the bladder. The tire vulcanizing apparatus according to claim 6 or 7, wherein: 前記温度測定手段が温度測定プローブを含み、前記ブラダーが円筒状に成形されたブラダー本体を有し、該ブラダー本体の内側の温度測定位置に該ブラダー本体に対して一体的に成形されたプローブ固定用の主突起を設けると共に、前記ブラダー本体の内側の前記温度測定位置から離間した少なくとも1箇所に該ブラダー本体に対して一体的に成形されたリード線係留用の補助突起を設け、前記温度測定プローブを記主突起に固定する一方で、前記温度測定プローブに繋がるリード線を前記補助突起に係留したことを特徴とする請求項6〜8のいずれかに記載のタイヤ加硫装置。   The temperature measurement means includes a temperature measurement probe, the bladder has a bladder body formed in a cylindrical shape, and is fixed to the bladder body integrally with the bladder body at a temperature measurement position inside the bladder body. And a lead wire anchoring auxiliary protrusion formed integrally with the bladder main body at least at one location spaced from the temperature measurement position inside the bladder main body, and the temperature measurement 9. The tire vulcanizing apparatus according to claim 6, wherein a lead wire connected to the temperature measurement probe is moored to the auxiliary protrusion while the probe is fixed to the main protrusion. 前記主突起と前記補助突起との間又は前記補助突起の相互間に懸架される前記リード線の懸架部分が弛みを持つように前記リード線を前記補助突起に係留したことを特徴とする請求項9に記載のタイヤ加硫装置。   The lead wire is anchored to the auxiliary protrusion so that a suspended portion of the lead wire suspended between the main protrusion and the auxiliary protrusion or between the auxiliary protrusions has a slack. 9. The tire vulcanizing apparatus according to 9.
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WO2013088328A1 (en) * 2011-12-15 2013-06-20 Pirelli Tyre S.P.A. Method and apparatus for vulcanizing a tyre
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JPS56167431A (en) * 1980-04-25 1981-12-23 Goodrich Co B F Method of controlling vulcanization
JPS6317010A (en) * 1986-07-08 1988-01-25 Bridgestone Corp Controlling method for curing of tire
JPH01113211A (en) * 1987-10-28 1989-05-01 Bridgestone Corp Measurement of internal temperature of vulcanized object and control of tire vulcanization
JPH07227852A (en) * 1994-02-17 1995-08-29 Fuji Shoji Kk Tire vulcanizing machine and method
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JP2006026925A (en) * 2004-07-12 2006-02-02 Yokohama Rubber Co Ltd:The Tire vulcanizing method and tire vulcanizer
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