JP2009274621A - Storage method for pneumatic tire, and tire inner surface protection device - Google Patents

Storage method for pneumatic tire, and tire inner surface protection device Download PDF

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JP2009274621A
JP2009274621A JP2008128549A JP2008128549A JP2009274621A JP 2009274621 A JP2009274621 A JP 2009274621A JP 2008128549 A JP2008128549 A JP 2008128549A JP 2008128549 A JP2008128549 A JP 2008128549A JP 2009274621 A JP2009274621 A JP 2009274621A
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tire
pneumatic
pneumatic tire
tire inner
surface protector
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JP5217616B2 (en
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Shinya Harikae
紳也 張替
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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 storage method for a pneumatic tire, and a tire inner surface protection device, applicable to a plurality of different kinds of pneumatic tires of different sizes, and capable of protecting the tire inner surface without impairing handling easiness of the pneumatic tire. <P>SOLUTION: The tire inner surface protection device 10 has flexible structure insertable into a tire hollow part 5. The pneumatic tire T before assembling of a rim is stored with the tire inner surface protection device 10 inserted into the tire hollow part 5. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、空気入りタイヤを保管する方法及びそれに用いるタイヤ内面保護具に関し、更に詳しくは、共通のタイヤ内面保護具をサイズが異なる複数種類の空気入りタイヤに対して適用可能にし、かつ空気入りタイヤの取り扱い性を阻害することなくタイヤ内面を保護することを可能にした空気入りタイヤの保管方法及びタイヤ内面保護具に関する。   The present invention relates to a method for storing a pneumatic tire and a tire inner surface protector used therefor, and more specifically, allows a common tire inner surface protector to be applied to a plurality of types of pneumatic tires having different sizes, and includes a pneumatic tire. The present invention relates to a pneumatic tire storage method and a tire inner surface protector that can protect the inner surface of a tire without hindering the handleability of the tire.

近年、空気入りタイヤの内面にウレタンフォームからなる吸音材を配置し、その吸音材により空洞共鳴音を低減することが行われている。ところが、ウレタンフォームからなる吸音材は、紫外線や水分により劣化が加速するため、タイヤの流通経路や販売点での取り扱いに注意が必要である。特に、屋外にタイヤを積み重ねたりする場合には、ウレタンフォームからなる吸音材を紫外線や水分から保護することが必要である。   In recent years, a sound absorbing material made of urethane foam is disposed on the inner surface of a pneumatic tire, and cavity resonance noise is reduced by the sound absorbing material. However, since the deterioration of the sound absorbing material made of urethane foam is accelerated by ultraviolet rays or moisture, it is necessary to pay attention to the handling of the tire in the distribution route and the sales point. In particular, when tires are stacked outdoors, it is necessary to protect the sound absorbing material made of urethane foam from ultraviolet rays and moisture.

このような不都合に鑑みて、タイヤ全体を個別に包装することや、ビード部に保護部材を装着して空気入りタイヤの空洞部を外部から遮断することが提案されている(例えば、特許文献1参照)。   In view of such inconveniences, it has been proposed to individually package the entire tire, or to attach a protective member to the bead portion to block the hollow portion of the pneumatic tire from the outside (for example, Patent Document 1). reference).

しかしながら、タイヤ全体を個別に包装した場合、空気入りタイヤの取り扱い性が阻害され、その運搬や積み重ねが困難になるという問題がある。一方、ビード部に保護部材を装着する場合、タイヤサイズ毎に保護部材を用意する必要があるため、保護部材の管理が煩雑であり、しかもタイヤの管理コストを大幅に増大させる要因にもなる。
国際公開第WO03/103989号パンフレット
However, when the entire tire is individually packaged, there is a problem that handling of the pneumatic tire is hindered and its transportation and stacking become difficult. On the other hand, when a protective member is attached to the bead portion, it is necessary to prepare a protective member for each tire size. Therefore, the management of the protective member is complicated, and the management cost of the tire is greatly increased.
International Publication No. WO03 / 103989 Pamphlet

本発明の目的は、共通のタイヤ内面保護具をサイズが異なる複数種類の空気入りタイヤに対して適用可能にし、かつ空気入りタイヤの取り扱い性を阻害することなくタイヤ内面を保護することを可能にした空気入りタイヤの保管方法及びタイヤ内面保護具を提供することにある。   An object of the present invention is to make it possible to apply a common tire inner surface protector to a plurality of types of pneumatic tires of different sizes, and to protect the tire inner surface without impairing the handleability of the pneumatic tire. Another object of the present invention is to provide a storage method for a pneumatic tire and a tire inner surface protection tool.

上記目的を達成するための本発明の空気入りタイヤの保管方法は、可撓性を有すると共にタイヤ空洞部内に挿入自在な構造を有するタイヤ内面保護具を用い、該タイヤ内面保護具をタイヤ空洞部内に挿入した状態でリム組み前の空気入りタイヤを保管することを特徴とするものである。   In order to achieve the above object, a pneumatic tire storage method according to the present invention uses a tire inner surface protector having flexibility and a structure that can be inserted into the tire cavity, and the tire inner surface protector is disposed inside the tire cavity. The pneumatic tire before assembling the rim is stored in a state of being inserted into the rim.

また、上記目的を達成するための本発明のタイヤ内面保護具は、リム組み前の空気入りタイヤの内面を保護するためのタイヤ内面保護具であって、可撓性を有すると共にタイヤ空洞部内に挿入自在な構造を有することを特徴とするものである。   A tire inner surface protector of the present invention for achieving the above object is a tire inner surface protector for protecting the inner surface of the pneumatic tire before assembling the rim, and has flexibility and is contained in the tire cavity. It has a structure that can be inserted freely.

本発明では、リム組み前の空気入りタイヤを保管するにあたって、可撓性を有すると共にタイヤ空洞部内に挿入自在な構造を有するタイヤ内面保護具を用いるので、共通のタイヤ内面保護具をサイズが異なる複数種類の空気入りタイヤに対して適用することができる。また、上記タイヤ内面保護具はタイヤ空洞部内に挿入されるので、空気入りタイヤの取り扱い性を阻害することなくタイヤ内面を保護することができる。   In the present invention, when storing the pneumatic tire before assembling the rim, since a tire inner surface protector having flexibility and a structure that can be inserted into the tire cavity is used, the size of the common tire inner surface protector is different. It can be applied to a plurality of types of pneumatic tires. Moreover, since the said tire inner surface protector is inserted in a tire cavity, it can protect a tire inner surface, without inhibiting the handleability of a pneumatic tire.

タイヤ内面保護具としては、可撓性を有する環状体からなり、該環状体の外径が空気入りタイヤのビード部の内径よりも大きく、該環状体の内径が空気入りタイヤのビード部の内径よりも小さく、かつ該環状体がタイヤ空洞部内への挿入状態において両側のビード部に当接するタイヤ内面保護具を用いることができる。特に、高分子材料からなる中空構造を有する環状体とした場合、軽量化が可能になる。   The tire inner surface protector is made of a flexible annular body, and the outer diameter of the annular body is larger than the inner diameter of the bead portion of the pneumatic tire, and the inner diameter of the annular body is the inner diameter of the bead portion of the pneumatic tire. It is possible to use a tire inner surface protector that is smaller than the annular body and is in contact with the bead portions on both sides when the annular body is inserted into the tire cavity. In particular, when an annular body having a hollow structure made of a polymer material is used, the weight can be reduced.

また、タイヤ内面保護具としては、可撓性を有する棒状体からなり、該棒状体をタイヤ空洞部内で螺旋状に巻回してタイヤ内面に沿って配置するようにしたタイヤ内面保護具を用いることができる。特に、高分子材料からなる中空構造を有する棒状体とした場合、軽量化が可能になる。   Further, as the tire inner surface protector, a tire inner surface protector made of a flexible rod-like body, spirally wound in the tire cavity and arranged along the tire inner surface is used. Can do. In particular, when a rod-shaped body having a hollow structure made of a polymer material is used, the weight can be reduced.

高分子材料は熱可塑性樹脂又はエラストマー材料であることが好ましい。熱可塑性樹脂を用いた場合、タイヤ内面保護具が損傷等により使用不能となったときのリサイクル性が優れている。一方、エラストマー材料を用いた場合、タイヤに対するタイヤ内面保護具の密着性が良好になると共に、繰り返し使用する際の耐久性も良好になる。   The polymer material is preferably a thermoplastic resin or an elastomer material. When a thermoplastic resin is used, the recyclability when the tire inner surface protector becomes unusable due to damage or the like is excellent. On the other hand, when an elastomer material is used, the adhesion of the tire inner surface protector to the tire is improved and the durability when repeatedly used is also improved.

本発明は、各種の空気入りタイヤを保管する場合に適用可能であるが、特にタイヤ内面にウレタンフォームからなる吸音材を設置した空気入りタイヤを保管する場合に好適である。この場合、ウレタンフォーム製の吸音材を紫外線や水分から保護し、その劣化を効果的に抑制することができる。   The present invention is applicable to storing various types of pneumatic tires, and is particularly suitable for storing pneumatic tires in which a sound absorbing material made of urethane foam is installed on the tire inner surface. In this case, the sound absorbing material made of urethane foam can be protected from ultraviolet rays and moisture, and its deterioration can be effectively suppressed.

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及び図2は本発明の実施形態からなるタイヤ内面保護具及び空気入りタイヤを示すものである。図1及び図2において、空気入りタイヤTは、トレッド部1と、一対のサイドウォール部2と、一対のビード部3とを備えている。空気入りタイヤTのトレッド部1におけるタイヤ内面には、ウレタンフォームからなる吸音材4が設置されている。   Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings. 1 and 2 show a tire inner surface protector and a pneumatic tire according to an embodiment of the present invention. 1 and 2, the pneumatic tire T includes a tread portion 1, a pair of sidewall portions 2, and a pair of bead portions 3. A sound absorbing material 4 made of urethane foam is installed on the tire inner surface of the tread portion 1 of the pneumatic tire T.

図1に示すように、タイヤ内面保護具10は、可撓性を有すると共にタイヤ空洞部5の内部に挿入自在な構造を有している。より具体的には、タイヤ内面保護具10は、タイヤ周方向に沿って環状に延びて可撓性を有する環状体11からなり、概ねドーナツ形状を有している(図2参照)。環状体11の外径Doは空気入りタイヤTのビード部3の内径diよりも大きく、環状体11の内径Diは空気入りタイヤTのビード部3の内径diよりも小さくなっている。そして、環状体11はタイヤ空洞部5内への挿入状態において両側のビード部3,3に対して当接するようになっている。   As shown in FIG. 1, the tire inner surface protector 10 has a structure that is flexible and can be inserted into the tire cavity 5. More specifically, the tire inner surface protector 10 includes an annular body 11 that extends annularly along the tire circumferential direction and has flexibility, and has a generally donut shape (see FIG. 2). The outer diameter Do of the annular body 11 is larger than the inner diameter di of the bead portion 3 of the pneumatic tire T, and the inner diameter Di of the annular body 11 is smaller than the inner diameter di of the bead portion 3 of the pneumatic tire T. The annular body 11 comes into contact with the bead portions 3 and 3 on both sides in the inserted state into the tire cavity 5.

環状体11からなるタイヤ内面保護具10をタイヤ空洞部5内に挿入した状態でリム組み前の空気入りタイヤTを保管することにより、ウレタンフォームからなる吸音材4が設置されたタイヤ内面を保護することができる。これにより、ウレタンフォーム製の吸音材4を紫外線や水分から保護し、その劣化を抑制することができる。   Storing the pneumatic tire T before assembling the rim in a state where the tire inner surface protector 10 made of the annular body 11 is inserted into the tire cavity 5, thereby protecting the tire inner surface on which the sound absorbing material 4 made of urethane foam is installed can do. Thereby, the sound absorbing material 4 made of urethane foam can be protected from ultraviolet rays and moisture, and its deterioration can be suppressed.

ここで、環状体11からなるタイヤ内面保護具10は、弾性的に変形可能であるので、サイズが異なる複数種類の空気入りタイヤTに対して適用可能である。また、タイヤ内面保護具10はタイヤ空洞部5内に挿入されるので、空気入りタイヤTの取り扱い性を阻害することなくタイヤ内面を保護することができる。   Here, since the tire inner surface protector 10 made of the annular body 11 can be elastically deformed, it can be applied to a plurality of types of pneumatic tires T having different sizes. Moreover, since the tire inner surface protector 10 is inserted into the tire cavity 5, the tire inner surface can be protected without impairing the handleability of the pneumatic tire T.

本実施形態において、環状体11は高分子材料からなる中空構造を有している。即ち、環状体11は高分子材料からなるチューブに気体を封入したものである。環状体11を中空構造とした場合、軽量化の点で有利である。但し、環状体11はチューブタイプに限定されるものではなく、例えば、独立気泡を含むウレタン等から成形しても良い。   In the present embodiment, the annular body 11 has a hollow structure made of a polymer material. That is, the annular body 11 is obtained by enclosing a gas in a tube made of a polymer material. When the annular body 11 has a hollow structure, it is advantageous in terms of weight reduction. However, the annular body 11 is not limited to the tube type, and may be formed from urethane containing closed cells, for example.

図3は本発明の他の本発明の実施形態からなるタイヤ内面保護具及び空気入りタイヤを示すものである。図3に示すように、タイヤ内面保護具10はタイヤ空洞部5内への挿入状態において最大外径部分がタイヤ内面の吸音材4に当接する必要はなく、その一部がタイヤ空洞部5内に挿入されていれば良い。   FIG. 3 shows a tire inner surface protector and a pneumatic tire according to another embodiment of the present invention. As shown in FIG. 3, the tire inner surface protector 10 does not have to have the maximum outer diameter portion in contact with the sound absorbing material 4 on the tire inner surface in a state where the tire inner surface protector 10 is inserted into the tire cavity portion 5. As long as it is inserted in

図4は本発明の更に他の本発明の実施形態からなるタイヤ内面保護具及び空気入りタイヤを示すものである。図4に示すように、1本の空気入りタイヤTの空洞部5内に複数本の環状体11を挿入し、これら環状体11を一対のビード部3,3間に挟み込むように配置しても良い。   FIG. 4 shows a tire inner surface protector and a pneumatic tire according to still another embodiment of the present invention. As shown in FIG. 4, a plurality of annular bodies 11 are inserted into the cavity 5 of one pneumatic tire T, and these annular bodies 11 are arranged so as to be sandwiched between a pair of bead portions 3 and 3. Also good.

図5及び図6は本発明の更に他の本発明の実施形態からなるタイヤ内面保護具及び空気入りタイヤを示すものである。図5に示すように、タイヤ内面保護具20は、可撓性を有すると共にタイヤ空洞部5の内部に挿入自在な構造を有している。より具体的には、タイヤ内面保護具20は、空気入りタイヤTのトレッド部1における内周長よりも長く可撓性を有する棒状体21から構成されている。そして、棒状体21はタイヤ空洞部5内で螺旋状に少なくとも1周巻回するようにタイヤ内面に沿って配置されている(図6参照)。棒状体21は周回毎に互いに密着し、吸音材4が設置されたタイヤ内面を隙間なく覆うようになっている。   5 and 6 show a tire inner surface protector and a pneumatic tire according to still another embodiment of the present invention. As shown in FIG. 5, the tire inner surface protector 20 has a structure that is flexible and can be inserted into the tire cavity 5. More specifically, the tire inner surface protector 20 includes a rod-like body 21 that is longer than the inner peripheral length of the tread portion 1 of the pneumatic tire T and has flexibility. And the rod-shaped body 21 is arrange | positioned along the tire inner surface so that it may wind at least 1 round spirally within the tire cavity 5 (refer FIG. 6). The rod-shaped bodies 21 are in close contact with each other every turn, and cover the tire inner surface on which the sound absorbing material 4 is installed without any gaps.

棒状体21からなるタイヤ内面保護具20をタイヤ空洞部5内に挿入した状態でリム組み前の空気入りタイヤTを保管することにより、ウレタンフォームからなる吸音材4が設置されたタイヤ内面を保護することができる。これにより、ウレタンフォーム製の吸音材4を紫外線や水分から保護し、その劣化を抑制することができる。   By storing the pneumatic tire T before assembling the rim in a state where the tire inner surface protector 20 made of the rod-shaped body 21 is inserted into the tire cavity 5, the inner surface of the tire on which the sound absorbing material 4 made of urethane foam is installed is protected. can do. Thereby, the sound absorbing material 4 made of urethane foam can be protected from ultraviolet rays and moisture, and its deterioration can be suppressed.

ここで、棒状体21からなるタイヤ内面保護具20は、弾性的に変形可能であるので、サイズが異なる複数種類の空気入りタイヤTに対して適用可能である。また、タイヤ内面保護具20はタイヤ空洞部5内に挿入されるので、空気入りタイヤTの取り扱い性を阻害することなくタイヤ内面を保護することができる。   Here, since the tire inner surface protector 20 made of the rod-like body 21 can be elastically deformed, it can be applied to a plurality of types of pneumatic tires T having different sizes. Moreover, since the tire inner surface protector 20 is inserted into the tire cavity 5, the tire inner surface can be protected without impairing the handleability of the pneumatic tire T.

本実施形態において、棒状体21は高分子材料からなる中空構造を有している。即ち、棒状体21は高分子材料からなるチューブに気体を封入したものである。棒状体21を中空構造とした場合、軽量化の点で有利である。但し、棒状体21はチューブタイプに限定されるものではなく、例えば、独立気泡を含むウレタン等から成形しても良い。   In this embodiment, the rod-shaped body 21 has a hollow structure made of a polymer material. That is, the rod-shaped body 21 is a tube made of a polymer material in which gas is sealed. The rod-shaped body 21 having a hollow structure is advantageous in terms of weight reduction. However, the rod-shaped body 21 is not limited to the tube type, and may be formed from urethane containing closed cells, for example.

図7は本発明の更に他の本発明の実施形態からなるタイヤ内面保護具及び空気入りタイヤを示すものである。図7に示すように、タイヤ内面保護具20は扁平中空構造を有する棒状体21から構成することが可能である。また、棒状体21の中空部分は長さ方向に連続している必要はなく、例えば、長さ方向に所定の間隔をおいて隔壁や閉塞部分を設けることにより、長さ方向に沿って複数個のセルに区画されていても良い。   FIG. 7 shows a tire inner surface protector and a pneumatic tire according to still another embodiment of the present invention. As shown in FIG. 7, the tire inner surface protector 20 can be composed of a rod-shaped body 21 having a flat hollow structure. Moreover, the hollow part of the rod-shaped body 21 does not need to be continuous in the length direction. For example, a plurality of pieces along the length direction can be provided by providing partition walls or closed portions at predetermined intervals in the length direction. It may be partitioned into cells.

上述したタイヤ内面保護具10,20を構成する高分子材料としては、熱可塑性樹脂又はエラストマー材料を用いることができる。熱可塑性樹脂としては、例えば、ポリエチレン、ポリオレフィン、ポリ塩化ビニル、ポリビニルアルコール及びこれらの混合物、更には、熱可塑性エラストマー(ウレタン)等を挙げることができる。熱可塑性樹脂を用いた場合、タイヤ内面保護具が損傷等により使用不能となったときのリサイクル性が優れている。一方、エラストマー材料としては、天然ゴム(NR)、スチレン・ブタジエンゴム(SBR)、ブタジエンゴム(BR)、ハロゲン化ブチルゴム(IIR)、アクリロニトリル・ブタジエンゴム(NBR)、エチレン・プロピレン・ジエンゴム(EPDM)等を挙げることができる。エラストマー材料を用いた場合、空気入りタイヤTに対するタイヤ内面保護具10,20の密着性が良好になると共に、繰り返し使用する際の耐久性も良好になる。   As the polymer material constituting the tire inner surface protectors 10 and 20 described above, a thermoplastic resin or an elastomer material can be used. Examples of the thermoplastic resin include polyethylene, polyolefin, polyvinyl chloride, polyvinyl alcohol and a mixture thereof, and further, a thermoplastic elastomer (urethane). When a thermoplastic resin is used, the recyclability when the tire inner surface protector becomes unusable due to damage or the like is excellent. On the other hand, as elastomer materials, natural rubber (NR), styrene-butadiene rubber (SBR), butadiene rubber (BR), halogenated butyl rubber (IIR), acrylonitrile-butadiene rubber (NBR), ethylene-propylene-diene rubber (EPDM) Etc. When the elastomer material is used, the adhesion of the tire inner surface protectors 10 and 20 to the pneumatic tire T is improved, and the durability when repeatedly used is also improved.

また、吸音材4を紫外線から保護するために、タイヤ内面保護具10,20は紫外線透過率が低い黒色とすることが好ましい。また、タイヤ内面保護具10,20には紫外線遮断剤を塗布したり、或いは、紫外線遮断フィルムを貼着しても良い。   Moreover, in order to protect the sound absorbing material 4 from ultraviolet rays, the tire inner surface protectors 10 and 20 are preferably black with low ultraviolet transmittance. Moreover, you may apply | coat a ultraviolet blocker to the tire inner surface protectors 10 and 20, or may affix a ultraviolet blocking film.

空気入りタイヤTにタイヤ内面保護具10,20を装着した状態において、空気入りタイヤTの外部における紫外線の量に対して、タイヤ内面における紫外線の量は3%以下であることが好ましい。言い換えれば、タイヤ内面保護具10,20に基づく紫外線の遮断率は97%以上であることが好ましい。この知見は本発明者が行った試験結果に基づくものである。   In a state where the tire inner surface protectors 10 and 20 are mounted on the pneumatic tire T, the amount of ultraviolet rays on the tire inner surface is preferably 3% or less with respect to the amount of ultraviolet rays outside the pneumatic tire T. In other words, the ultraviolet ray blocking rate based on the tire inner surface protectors 10, 20 is preferably 97% or more. This finding is based on the results of tests conducted by the present inventors.

つまり、タイヤ内面にウレタンフォーム製の吸音材と共に紫外線センサーを設置してタイヤ内面での紫外線量を測定可能な状態にすると共に、空気入りタイヤにタイヤ内面保護具を装着し、空気入りタイヤの軸位置に設置した紫外線ランプから波長302nm、1730μW/cm2 の紫外線を照射し、3ヶ月間放置した。その後、タイヤ内面からウレタンフォーム製の吸音材を取り外し、そのウレタンフォームの試験前後における引き裂き強度の低下率を求めた。 In other words, an ultraviolet sensor is installed on the inner surface of the tire together with a sound absorbing material made of urethane foam so that the amount of ultraviolet light on the inner surface of the tire can be measured, and a tire inner surface protector is attached to the pneumatic tire, The ultraviolet ray set at the position was irradiated with ultraviolet rays having a wavelength of 302 nm and 1730 μW / cm 2 and left for 3 months. Thereafter, the sound absorbing material made of urethane foam was removed from the inner surface of the tire, and the reduction rate of the tear strength before and after the test of the urethane foam was determined.

その結果、タイヤ内面における紫外線量がタイヤ外部における紫外線量の5%であるとき引き裂き強度の低下率が12%であったのに対し、タイヤ内面における紫外線量がタイヤ外部における紫外線量の3%であるとき引き裂き強度の低下率が5%であり、紫外線量の僅かな差が引き裂き強度の低下率の大きな影響を与えることを知見した。   As a result, when the ultraviolet ray amount on the tire inner surface was 5% of the ultraviolet ray amount outside the tire, the reduction rate of the tear strength was 12%, whereas the ultraviolet ray amount on the tire inner surface was 3% of the ultraviolet ray amount outside the tire. It was found that the tear strength reduction rate was 5% at a certain time, and that a slight difference in the amount of ultraviolet rays greatly affected the tear strength reduction rate.

本発明の実施形態からなるタイヤ内面保護具及び空気入りタイヤを示す子午線断面図である。1 is a meridian cross-sectional view showing a tire inner surface protector and a pneumatic tire according to an embodiment of the present invention. 図1のタイヤ内面保護具及び空気入りタイヤを示す側面図である。It is a side view which shows the tire inner surface protector of FIG. 1, and a pneumatic tire. 本発明の他の実施形態からなるタイヤ内面保護具及び空気入りタイヤを示す子午線断面図である。It is meridian sectional drawing which shows the tire inner surface protector and pneumatic tire which consist of other embodiment of this invention. 本発明の更に他の実施形態からなるタイヤ内面保護具及び空気入りタイヤを示す子午線断面図である。It is meridian sectional drawing which shows the tire inner surface protector which consists of further another embodiment of this invention, and a pneumatic tire. 本発明の更に他の実施形態からなるタイヤ内面保護具及び空気入りタイヤを示す子午線断面図である。It is meridian sectional drawing which shows the tire inner surface protector which consists of further another embodiment of this invention, and a pneumatic tire. 図5のタイヤ内面保護具及び空気入りタイヤをタイヤ内側から見た状態示す平面図である。It is a top view which shows the state which looked at the tire inner surface protector and pneumatic tire of FIG. 5 from the tire inner side. 本発明の更に他の実施形態からなるタイヤ内面保護具及び空気入りタイヤを示す子午線断面図である。It is meridian sectional drawing which shows the tire inner surface protector which consists of further another embodiment of this invention, and a pneumatic tire.

符号の説明Explanation of symbols

1 トレッド部
2 サイドウォール部
3 ビード部
4 吸音材
5 タイヤ空洞部
10,20 タイヤ内面保護具
11 環状体
21 棒状体
T 空気入りタイヤ
DESCRIPTION OF SYMBOLS 1 Tread part 2 Side wall part 3 Bead part 4 Sound-absorbing material 5 Tire cavity part 10, 20 Tire inner surface protector 11 Ring body 21 Rod-shaped body T Pneumatic tire

Claims (14)

可撓性を有すると共にタイヤ空洞部内に挿入自在な構造を有するタイヤ内面保護具を用い、該タイヤ内面保護具をタイヤ空洞部内に挿入した状態でリム組み前の空気入りタイヤを保管することを特徴とする空気入りタイヤの保管方法。   A tire inner surface protector having flexibility and a structure that can be inserted into the tire cavity is used, and the pneumatic tire before assembling the rim is stored in a state where the tire inner surface protector is inserted into the tire cavity. How to store pneumatic tires. 前記タイヤ内面保護具が可撓性を有する環状体からなり、該環状体の外径が空気入りタイヤのビード部の内径よりも大きく、該環状体の内径が空気入りタイヤのビード部の内径よりも小さく、かつ該環状体がタイヤ空洞部内への挿入状態において両側のビード部に当接することを特徴とする請求項1に記載の空気入りタイヤの保管方法。   The tire inner surface protector is made of a flexible annular body, and the outer diameter of the annular body is larger than the inner diameter of the bead portion of the pneumatic tire, and the inner diameter of the annular body is larger than the inner diameter of the bead portion of the pneumatic tire. The method for storing a pneumatic tire according to claim 1, wherein the annular body is in contact with the bead portions on both sides in a state of being inserted into the tire cavity. 前記環状体が高分子材料からなる中空構造を有することを特徴とする請求項2に記載の空気入りタイヤの保管方法。   The pneumatic tire storage method according to claim 2, wherein the annular body has a hollow structure made of a polymer material. 前記タイヤ内面保護具が可撓性を有する棒状体からなり、該棒状体をタイヤ空洞部内で螺旋状に巻回してタイヤ内面に沿って配置することを特徴とする請求項1に記載の空気入りタイヤの保管方法。   The pneumatic tire according to claim 1, wherein the tire inner surface protection device is formed of a flexible rod-like body, and the rod-like body is spirally wound in the tire cavity and arranged along the tire inner surface. Tire storage method. 前記棒状体が高分子材料からなる中空構造を有することを特徴とする請求項4に記載の空気入りタイヤの保管方法。   The pneumatic tire storage method according to claim 4, wherein the rod-shaped body has a hollow structure made of a polymer material. 前記高分子材料が熱可塑性樹脂であることを特徴とする請求項3又は請求項5に記載の空気入りタイヤの保管方法。   The method for storing a pneumatic tire according to claim 3 or 5, wherein the polymer material is a thermoplastic resin. 前記高分子材料がエラストマー材料であることを特徴とする請求項3又は請求項5に記載の空気入りタイヤの保管方法。   6. The pneumatic tire storage method according to claim 3, wherein the polymer material is an elastomer material. リム組み前の空気入りタイヤの内面を保護するためのタイヤ内面保護具であって、可撓性を有すると共にタイヤ空洞部内に挿入自在な構造を有することを特徴とするタイヤ内面保護具。   A tire inner surface protector for protecting an inner surface of a pneumatic tire before assembling a rim, the tire inner surface protector having flexibility and a structure that can be inserted into a tire cavity. 可撓性を有する環状体からなり、該環状体の外径が空気入りタイヤのビード部の内径よりも大きく、該環状体の内径が空気入りタイヤのビード部の内径よりも小さく、かつ該環状体がタイヤ空洞部内への挿入状態において両側のビード部に当接することを特徴とする請求項8に記載のタイヤ内面保護具。   An annular body having flexibility, the outer diameter of the annular body being larger than the inner diameter of the bead portion of the pneumatic tire, the inner diameter of the annular body being smaller than the inner diameter of the bead portion of the pneumatic tire, and the annular The tire inner surface protector according to claim 8, wherein the body abuts against the bead portions on both sides in a state of being inserted into the tire cavity. 前記環状体が高分子材料からなる中空構造を有することを特徴とする請求項9に記載のタイヤ内面保護具。   The tire inner surface protector according to claim 9, wherein the annular body has a hollow structure made of a polymer material. 可撓性を有する棒状体からなり、該棒状体をタイヤ空洞部内で螺旋状に巻回してタイヤ内面に沿って配置することを特徴とする請求項8に記載のタイヤ内面保護具。   9. The tire inner surface protector according to claim 8, wherein the tire inner surface protector is formed of a flexible rod-like body, and the rod-like body is spirally wound in the tire cavity and arranged along the tire inner surface. 前記棒状体が高分子材料からなる中空構造を有することを特徴とする請求項11に記載のタイヤ内面保護具。   The tire inner surface protector according to claim 11, wherein the rod-shaped body has a hollow structure made of a polymer material. 前記高分子材料が熱可塑性樹脂であることを特徴とする請求項10又は請求項12に記載のタイヤ内面保護具。   The tire inner surface protector according to claim 10 or 12, wherein the polymer material is a thermoplastic resin. 前記高分子材料がエラストマー材料であることを特徴とする請求項10又は請求項12に記載のタイヤ内面保護具。   The tire inner surface protector according to claim 10 or 12, wherein the polymer material is an elastomer material.
JP2008128549A 2008-05-15 2008-05-15 How to store pneumatic tires Expired - Fee Related JP5217616B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011057203A (en) * 2009-08-14 2011-03-24 Yokohama Rubber Co Ltd:The Pneumatic tire
JP2011225180A (en) * 2010-04-22 2011-11-10 Yokohama Rubber Co Ltd:The Pneumatic tire
CN103818188A (en) * 2014-03-10 2014-05-28 青岛泰凯英轮胎有限公司 Tire bead sidewall holder and using method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52136301U (en) * 1976-04-10 1977-10-17
JPS56151679A (en) * 1980-04-15 1981-11-24 Miyahara Keigoukin Chiyuuzoush Pad for preventing deformation of tubeless tire
JP3009281U (en) * 1994-09-21 1995-04-04 理 緒方 Waterproof and dust protection equipment for automobile display tires
JP2002059722A (en) * 2000-08-11 2002-02-26 Bridgestone Corp Safety pneumatic tire and safety tube for pneumatic tire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52136301U (en) * 1976-04-10 1977-10-17
JPS56151679A (en) * 1980-04-15 1981-11-24 Miyahara Keigoukin Chiyuuzoush Pad for preventing deformation of tubeless tire
JP3009281U (en) * 1994-09-21 1995-04-04 理 緒方 Waterproof and dust protection equipment for automobile display tires
JP2002059722A (en) * 2000-08-11 2002-02-26 Bridgestone Corp Safety pneumatic tire and safety tube for pneumatic tire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011057203A (en) * 2009-08-14 2011-03-24 Yokohama Rubber Co Ltd:The Pneumatic tire
JP2011225180A (en) * 2010-04-22 2011-11-10 Yokohama Rubber Co Ltd:The Pneumatic tire
CN103818188A (en) * 2014-03-10 2014-05-28 青岛泰凯英轮胎有限公司 Tire bead sidewall holder and using method thereof

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