JP2004017730A - Method for manufacturing tire rim assembly, and pneumatic tire - Google Patents

Method for manufacturing tire rim assembly, and pneumatic tire Download PDF

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Publication number
JP2004017730A
JP2004017730A JP2002173502A JP2002173502A JP2004017730A JP 2004017730 A JP2004017730 A JP 2004017730A JP 2002173502 A JP2002173502 A JP 2002173502A JP 2002173502 A JP2002173502 A JP 2002173502A JP 2004017730 A JP2004017730 A JP 2004017730A
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JP
Japan
Prior art keywords
tire
pneumatic tire
rim
bead
lubricant
Prior art date
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Granted
Application number
JP2002173502A
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Japanese (ja)
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JP4075982B2 (en
Inventor
Shinji Kiyomiya
清宮　眞二
Yukio Tozawa
兎沢　幸雄
Masayoshi Wakatsuki
若月　正是
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Yokohama Rubber Co Ltd
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Yokohama Rubber Co Ltd
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Priority to JP2002173502A priority Critical patent/JP4075982B2/en
Publication of JP2004017730A publication Critical patent/JP2004017730A/en
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Publication of JP4075982B2 publication Critical patent/JP4075982B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a tire rim assembly, and a pneumatic tire for preventing damage on a bead part of the pneumatic tire in engaging the pneumatic tire with the rim. <P>SOLUTION: The pneumatic tire is engaged with the rim by applying lubricant on a front surface on a tire inner side of a bead tow part of the pneumatic tire or a rim flange tip end part of the rim where the bead tow part of the pneumatic tire is in contact when engaged. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、タイヤリム組立体の製造方法および空気入りタイヤに関し、さらに詳しくは、空気入りタイヤをリムに嵌合する際に、空気入りタイヤのビード部の損傷を防止するタイヤリム組立体の製造方法および空気入りタイヤに関する。
【０００２】
【従来の技術】
空気入りタイヤをホイールのリムに自動的に嵌める装置として、タイヤマウンター機が使用されている。一般に、図２に示すように、横倒しに固定されたホイールの上方から空気入りタイヤ１が嵌め込まれ、タイヤマウンター機のビード落しローラー２１等によって空気入りタイヤ１のビード部２を周上に沿って圧着させながら、空気入りタイヤ１をホイールのリム１１に嵌合させている。しかし、図２に示すように、空気入りタイヤ１の上側のビード部２を、リム１１の上側に嵌め込む際に、ビードトウ部３がリム１１のリムフランジ先端部１２に引っ掛かりやすく、ビードトウ部３が切れてしまう等ビード部２が損傷しやすいという問題があった。通常は、シリコーンオイルや石鹸水等の潤滑剤４は、ビード部２のタイヤ内面側ではなく、タイヤ外面側に塗布されるため、これでは図２の状況では、ビード部２の損傷を抑えることは難しい（特開平３−２７９００８号公報等参照）。
【０００３】
【発明が解決しようとする課題】
従って、本発明の課題は、空気入りタイヤをリムに嵌合する際に、空気入りタイヤのビード部の損傷を防止するタイヤリム組立体の製造方法および空気入りタイヤを提供することにある。
【０００４】
【課題を解決するための手段】
本発明によれば、空気入りタイヤのビードトウ部のタイヤ内面側表面に潤滑剤を塗布し、この空気入りタイヤをリムに嵌合するタイヤリム組立体の製造方法が提供される。
【０００５】
また、本発明によれば、前記潤滑剤を、ビードトウ部のタイヤ内面側表面の少なくともトウ先端部から５ｍｍ以上の範囲に、厚さ０．１〜１μｍで塗布する前記タイヤリム組立体の製造方法が提供される。
【０００６】
また、本発明によれば、空気入りタイヤのビードトウ部が嵌合時に接触するリムのリムフランジ先端部に潤滑剤を塗布し、このリムに空気入りタイヤを嵌合するタイヤリム組立体の製造方法が提供される。
【０００７】
また、本発明によれば、ビードトウ部のタイヤ内面側表面に潤滑剤を塗布した空気入りタイヤが提供される。
【０００８】
さらに、本発明によれば、前記潤滑剤を、ビードトウ部のタイヤ内面側表面の少なくともトウ先端部から５ｍｍ以上の範囲に、厚さ０．１〜１μｍで塗布した前記空気入りタイヤが提供される。
【０００９】
【発明の実施の形態】
以下、本発明の構成について図面を参照しながら詳細に説明する。本発明のタイヤリム組立体の製造方法は、図１にビード部３の断面図を示すように、まず、空気入りタイヤ１のビードトウ部３のタイヤ内面側表面に潤滑剤４が塗布される。次に、この空気入りタイヤ１を、横倒しに固定されたホイールの上方から配置し、タイヤマウンター機のビード落しローラー２１等によって空気入りタイヤ１のビード部２を周上に沿って圧着させながら、空気入りタイヤ１をホイールのリム１１に嵌合させる。ここで、潤滑剤４がビードトウ部３のタイヤ内面側表面に塗布されているため表面が滑りやすくなり、ホイールのリムフランジ先端部１２と接触しても引っ掛かりが生じにくく、ビード部２の損傷を有効に防止することができる。
【００１０】
また、潤滑剤４を塗布する範囲は、ビードトウ部３のタイヤ内面側表面の少なくともトウ先端部３ａから５ｍｍ以上、さらには図１のようにビードコア５上端にタイヤ軸方向に相対する部分までの範囲とするのが、ビード部２の損傷を有効に防止することができ好ましい。潤滑剤４を塗布する厚さは特に限定されないが、ビード部２の損傷を有効に防止するために、０．１〜１μｍ、さらには０．３〜０．７μｍとするのが好ましい。潤滑剤４の塗布は、ビードトウ部３の一部に施してもよいが、タイヤ全周にわたるのが好ましい。
【００１１】
また、潤滑剤４をホイール側に塗布してもよい。この場合は、空気入りタイヤ１のビードトウ部３が嵌合時に接触するリム１１のリムフランジ先端部１２に潤滑剤４を塗布し、これによって空気入りタイヤ１とリムフランジ先端部１２との間に滑りを生じさせ、ビード部２の損傷を防止することができる。潤滑剤４の塗布は、リムフランジ先端部１２の一部に施してもよいが、ホイール全周にわたるのが好ましい。
【００１２】
上記で用いる潤滑剤４としては、シリコーンオイル等のシリコーン樹脂、四フッ化エチレン等のフッ素樹脂や石鹸水等が挙げられ、その種類は特に限定されない。塗布する手段も特に限定されず、例えば、刷毛やスプレー等を用いればよいし、人手によっても、塗布装置によって機械的に行ってもよく、塗布装置をタイヤマウンター機に組み込んでもよい。
【００１３】
【実施例】
以下、実施例によって本発明をさらに説明するが、本発明の範囲をこれらの実施例に限定するものではない。タイヤサイズ１８５／７５Ｒ１５のライトバン用空気入りタイヤをリムサイズ１５×５Ｊのホイールに嵌合する試験を行った。比較例は、潤滑剤を全く塗布せず、実施例は図１のように、トウ先端部３ａから５ｍｍの範囲に厚さ０．６μｍで全周に刷毛によって塗布した。これらのタイヤについて、タイヤマウンター機によって、それぞれ１００本のタイヤをホイールに嵌合させたところ、ビード部２が損傷した割合は以下の通りであった。
比較例＝１０％、実施例＝１％。
【００１４】
従って、本発明のタイヤリム組立体の製造方法および空気入りタイヤを用いることで、空気入りタイヤをリムに嵌合する際のビード部の損傷を有効に防止することができた。
【００１５】
【発明の効果】
本発明に従って、空気入りタイヤのビードトウ部のタイヤ内面側表面、または、リムフランジ先端部に潤滑剤を塗布することによって、空気入りタイヤをリムに嵌合する際に、空気入りタイヤのビード部の損傷を防止するタイヤリム組立体の製造方法および空気入りタイヤを得ることができる。
【図面の簡単な説明】
【図１】本発明の空気入りタイヤのビード部を示す断面図である。
【図２】空気入りタイヤをホイールに嵌合させる状態を説明する断面図である。
【符号の説明】
１　空気入りタイヤ
２　ビード部
３　ビードトウ部
３ａ　トウ先端部
４　潤滑剤
５　ビードコア
１１　リム
１２　リムフランジ先端部
２１　ビード落しローラー[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for manufacturing a tire rim assembly and a pneumatic tire, and more particularly, to a method for manufacturing a tire rim assembly for preventing a bead portion of a pneumatic tire from being damaged when the pneumatic tire is fitted to a rim. Related to pneumatic tires.
[0002]
[Prior art]
As a device for automatically fitting a pneumatic tire to a rim of a wheel, a tire mounter machine is used. Generally, as shown in FIG. 2, a pneumatic tire 1 is fitted from above a wheel fixed sideways, and a bead dropping roller 21 of a tire mounter machine or the like moves a bead portion 2 of the pneumatic tire 1 along the circumference. The pneumatic tire 1 is fitted to the rim 11 of the wheel while being pressed. However, as shown in FIG. 2, when the upper bead portion 2 of the pneumatic tire 1 is fitted on the upper side of the rim 11, the bead toe portion 3 is easily caught on the rim flange tip portion 12 of the rim 11, and the bead toe portion 3 is formed. There is a problem that the bead portion 2 is easily damaged, such as breakage. Normally, the lubricant 4 such as silicone oil or soapy water is applied not to the tire inner surface side of the bead portion 2 but to the tire outer surface side. Is difficult (see Japanese Patent Application Laid-Open No. 3-279008).
[0003]
[Problems to be solved by the invention]
Therefore, an object of the present invention is to provide a method of manufacturing a tire rim assembly and a pneumatic tire that prevent damage to a bead portion of the pneumatic tire when the pneumatic tire is fitted to the rim.
[0004]
[Means for Solving the Problems]
According to the present invention, there is provided a method of manufacturing a tire rim assembly in which a lubricant is applied to a tire inner surface of a bead toe portion of a pneumatic tire and the pneumatic tire is fitted to a rim.
[0005]
Further, according to the present invention, there is provided a method for producing a tire rim assembly, wherein the lubricant is applied at a thickness of 0.1 to 1 μm in a range of at least 5 mm or more from the tip end of the bead toe portion on the inner surface of the tire. Provided.
[0006]
Further, according to the present invention, there is provided a method of manufacturing a tire rim assembly in which a bead toe portion of a pneumatic tire is applied with a lubricant on a rim flange tip of a rim to be brought into contact at the time of fitting, and the pneumatic tire is fitted to the rim. Provided.
[0007]
Further, according to the present invention, there is provided a pneumatic tire in which a lubricant is applied to the inner surface of the bead toe portion on the tire inner surface side.
[0008]
Further, according to the present invention, there is provided the pneumatic tire in which the lubricant is applied at a thickness of 0.1 to 1 μm to at least a range of 5 mm or more from the tip end of the bead toe portion on the inner surface of the tire. .
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the configuration of the present invention will be described in detail with reference to the drawings. In the method for manufacturing a tire rim assembly according to the present invention, as shown in FIG. 1, first, a lubricant 4 is applied to the inner surface of a bead toe portion 3 of a pneumatic tire 1. Next, the pneumatic tire 1 is placed from above the wheel fixed sideways, while the bead dropping roller 21 or the like of the tire mounter presses the bead portion 2 of the pneumatic tire 1 along the circumference. The pneumatic tire 1 is fitted to the rim 11 of the wheel. Here, since the lubricant 4 is applied to the inner surface of the bead toe portion 3 on the tire inner surface, the surface becomes slippery, and even if it comes into contact with the rim flange tip portion 12 of the wheel, it is hard to be caught and damage to the bead portion 2 is prevented. It can be effectively prevented.
[0010]
Further, the range in which the lubricant 4 is applied is at least 5 mm or more from the toe tip 3a of the inner surface of the bead toe 3 on the tire inner surface, and further, as shown in FIG. It is preferable that the bead portion 2 can be effectively prevented from being damaged. The thickness at which the lubricant 4 is applied is not particularly limited, but is preferably 0.1 to 1 μm, and more preferably 0.3 to 0.7 μm, in order to effectively prevent damage to the bead portion 2. The application of the lubricant 4 may be applied to a part of the bead toe portion 3, but is preferably applied over the entire circumference of the tire.
[0011]
Further, the lubricant 4 may be applied to the wheel side. In this case, the lubricant 4 is applied to the rim flange tip 12 of the rim 11 with which the bead toe portion 3 of the pneumatic tire 1 comes into contact at the time of fitting, whereby the pneumatic tire 1 and the rim flange tip 12 are Sliding can be caused, and damage to the bead portion 2 can be prevented. The application of the lubricant 4 may be applied to a part of the rim flange tip 12, but is preferably applied over the entire circumference of the wheel.
[0012]
Examples of the lubricant 4 used above include a silicone resin such as silicone oil, a fluororesin such as ethylene tetrafluoride, soapy water, and the like, and the type thereof is not particularly limited. The means for applying is not particularly limited. For example, a brush, a spray, or the like may be used. The application may be performed manually, mechanically by an application device, or the application device may be incorporated in a tire mounter.
[0013]
【Example】
Hereinafter, the present invention will be further described with reference to examples, but the scope of the present invention is not limited to these examples. A test was conducted in which a pneumatic tire for a light van having a tire size of 185 / 75R15 was fitted to a wheel having a rim size of 15 × 5J. In the comparative example, the lubricant was not applied at all, and in the example, as shown in FIG. 1, the lubricant was applied over the entire circumference with a thickness of 0.6 μm in a range of 5 mm from the toe tip 3a. When these tires were fitted with 100 tires by a tire mounter machine, the ratio of damage to the bead portion 2 was as follows.
Comparative Example = 10%, Example = 1%.
[0014]
Therefore, by using the method for manufacturing a tire rim assembly and the pneumatic tire of the present invention, it was possible to effectively prevent damage to the bead portion when the pneumatic tire was fitted to the rim.
[0015]
【The invention's effect】
According to the present invention, by applying a lubricant to the tire inner surface of the bead toe portion of the pneumatic tire, or the tip of the rim flange, when fitting the pneumatic tire to the rim, the bead portion of the pneumatic tire A method of manufacturing a tire rim assembly that prevents damage and a pneumatic tire can be obtained.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a bead portion of a pneumatic tire of the present invention.
FIG. 2 is a cross-sectional view illustrating a state in which a pneumatic tire is fitted to a wheel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pneumatic tire 2 Bead part 3 Bead toe part 3a Toe tip part 4 Lubricant 5 Bead core 11 Rim 12 Rim flange tip part 21 Bead dropping roller

Claims (5)

空気入りタイヤのビードトウ部のタイヤ内面側表面に潤滑剤を塗布し、この空気入りタイヤをリムに嵌合するタイヤリム組立体の製造方法。A method for manufacturing a tire rim assembly, in which a lubricant is applied to a tire inner surface of a bead toe portion of a pneumatic tire and the pneumatic tire is fitted to a rim. 前記潤滑剤を、ビードトウ部のタイヤ内面側表面の少なくともトウ先端部から５ｍｍ以上の範囲に、厚さ０．１〜１μｍで塗布する請求項１に記載のタイヤリム組立体の製造方法。2. The method of manufacturing a tire rim assembly according to claim 1, wherein the lubricant is applied at a thickness of 0.1 to 1 μm to at least a range of 5 mm or more from the tip end of the bead toe portion on the inner surface of the tire. 3. 空気入りタイヤのビードトウ部が嵌合時に接触するリムのリムフランジ先端部に潤滑剤を塗布し、このリムに空気入りタイヤを嵌合するタイヤリム組立体の製造方法。A method for manufacturing a tire rim assembly in which a lubricant is applied to a rim flange tip of a rim with which a bead toe portion of a pneumatic tire comes into contact when fitted, and the pneumatic tire is fitted to the rim. ビードトウ部のタイヤ内面側表面に潤滑剤を塗布した空気入りタイヤ。A pneumatic tire in which a lubricant is applied to the inner surface of the bead toe on the tire inner surface. 前記潤滑剤を、ビードトウ部のタイヤ内面側表面の少なくともトウ先端部から５ｍｍ以上の範囲に、厚さ０．１〜１μｍで塗布した請求項４に記載の空気入りタイヤ。5. The pneumatic tire according to claim 4, wherein the lubricant is applied at a thickness of 0.1 to 1 μm to at least a range of 5 mm or more from a tip end of the bead toe portion on the tire inner surface.
JP2002173502A 2002-06-14 2002-06-14 Manufacturing method of tire rim assembly Expired - Fee Related JP4075982B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002173502A JP4075982B2 (en) 2002-06-14 2002-06-14 Manufacturing method of tire rim assembly

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JP4075982B2 JP4075982B2 (en) 2008-04-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006326492A (en) * 2005-05-26 2006-12-07 Altia Hashimoto Co Ltd Lubricant applicator for tire
CN109838674A (en) * 2018-08-30 2019-06-04 王正光 It can provide the outer lubricating system of tire changer coupler body of lubricating fluid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006326492A (en) * 2005-05-26 2006-12-07 Altia Hashimoto Co Ltd Lubricant applicator for tire
JP4555155B2 (en) * 2005-05-26 2010-09-29 株式会社アルティア Tire lubricant applicator
CN109838674A (en) * 2018-08-30 2019-06-04 王正光 It can provide the outer lubricating system of tire changer coupler body of lubricating fluid

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