JP2002172709A - Tire molding drum rubber band - Google Patents
Tire molding drum rubber bandInfo
- Publication number
- JP2002172709A JP2002172709A JP2000371528A JP2000371528A JP2002172709A JP 2002172709 A JP2002172709 A JP 2002172709A JP 2000371528 A JP2000371528 A JP 2000371528A JP 2000371528 A JP2000371528 A JP 2000371528A JP 2002172709 A JP2002172709 A JP 2002172709A
- Authority
- JP
- Japan
- Prior art keywords
- drum
- rubber band
- tire
- mirror
- sheet member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 13
- 230000003746 surface roughness Effects 0.000 claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 241000254043 Melolonthinae Species 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
Landscapes
- Tyre Moulding (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、タイヤ成型ドラム
の外周部表面に設置されるタイヤ成型ドラムゴムバンド
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber band for a tire building drum installed on the outer peripheral surface of a tire building drum.
【０００２】[0002]
【従来の技術】タイヤ成型時にインナーライナー、チェ
ーファーなどのゴム材から成るシート部材を巻き付ける
タイヤ成型ドラムにおいては、その構造上、タイヤ成型
ドラム外周部にセグメントの段付き部が存在する。2. Description of the Related Art In a tire building drum in which a sheet member made of a rubber material such as an inner liner or a chafer is wound at the time of building a tire, a stepped portion of a segment exists on an outer peripheral portion of the tire building drum due to its structure.
【０００３】このため、図５に示される如く、タイヤ成
型ドラム７０の外周部表面にタイヤ成型ドラムゴムバン
ド７２を配置し、前記段付き部を緩衝している。For this reason, as shown in FIG. 5, a rubber band 72 is arranged on the outer peripheral surface of the tire building drum 70 to cushion the stepped portion.
【０００４】しかしながら、従来、このタイヤ成型ドラ
ムゴムバンドにおいては、その表面粗さが、１種類の粗
さで加工されていた。この結果、タイヤ成型ドラムゴム
バンドとタイヤ成型ドラムの外周部に巻き付けるシート
部材との粘着性（タック）が低すぎるとシート部材がタ
イヤ成型ドラムに巻き付かず、落ちたり、ズレたり、メ
クレたりしていた。また、前記粘着性が高すぎると巻き
付けたシート部材がタイヤ成型ドラムから外れず、次の
成型ステージに送れず、そのためスクラップや不良品が
出たり、成型作業者はその手直しを行うために成型作業
を中止しなくてはならず、品質上・生産性の点から問題
であった。即ち、従来のタイヤ成型ドラムゴムバンドに
は、粘着性が高すぎて不具合が発生するという問題と、
粘着性が低すぎて不具合が発生するという二律背反の問
題があった。[0004] However, in the past, in this tire building drum rubber band, the surface roughness was processed to one kind of roughness. As a result, if the adhesiveness (tack) between the rubber band for the tire building drum and the sheet member wound around the outer peripheral portion of the tire building drum is too low, the sheet member does not wind around the tire building drum, and falls, slips, or is scraped. I was Also, if the adhesiveness is too high, the wound sheet member does not come off the tire building drum and cannot be sent to the next forming stage. Has to be stopped, which is a problem in terms of quality and productivity. That is, the conventional tire-molded drum rubber band has a problem that the adhesiveness is too high to cause a problem,
There is a trade-off problem that the adhesion is too low and a problem occurs.
【０００５】[0005]
【発明が解決しようとする課題】本発明は上記事実を考
慮し、シート部材を確実にタイヤ成型ドラムに巻き付け
保持し、且つ、その成型ステップが終了したら速やかに
シート部材をタイヤ成型ドラムから外し、次のステージ
に送達することができるタイヤ成型ドラムゴムバンドを
提供することを目的とする。SUMMARY OF THE INVENTION In consideration of the above facts, the present invention reliably winds and holds a sheet member around a tire building drum, and immediately removes the sheet member from the tire building drum when the forming step is completed. It is an object to provide a tire building drum rubber band that can be delivered to the next stage.
【０００６】[0006]
【課題を解決するための手段】請求項１に記載の本発明
は、タイヤ成型ドラムの外周部表面に設置された伸縮性
豊かなゴムで作られた円筒状のタイヤ成型ドラムゴムバ
ンドであって、密と粗の少なくとも２種類以上の表面粗
さを持ち、粗の部分が表面の基礎面となっており、密の
鏡面加工の部分が周方向に沿って帯状に少なくとも２本
以上形成されていることを特徴とする。SUMMARY OF THE INVENTION The present invention according to claim 1 is a cylindrical rubber tire rubber band made of elastic rubber which is provided on the outer peripheral surface of a tire molding drum. , Having at least two types of surface roughness, dense and rough, the rough part being the base surface of the surface, and the dense mirror-finished part being formed in at least two strips along the circumferential direction. It is characterized by being.
【０００７】従って、インナーライナー、チェーファー
などのゴム材から成るシート部材をタイヤ成型ドラムに
巻きつけた場合には、タイヤ成型ドラムゴムバンドとシ
ート部材との相互の粘着性によって、シート部材がタイ
ヤ成型ドラムの外周部に保持される。この際、本発明で
は、タイヤ成型ドラムゴムバンドの表面が、密と粗の少
なくとも２種類以上の表面粗さを持ち、粗の部分が表面
の基礎面となっており、密の鏡面加工の部分が周方向に
沿って帯状に少なくとも２本以上形成されているため、
鏡面加工の部分で主にシート部材を保持することで、タ
イヤ成型ドラムゴムバンドとシート部材とがくっつき易
く、且つ離れ易い。この結果、シート部材を確実にタイ
ヤ成型ドラムに巻き付け保持し、且つその成型ステップ
が終了したら速やかにシート部材をタイヤ成型ドラムか
ら外し、次のステージに送達することができる。Therefore, when a sheet member made of a rubber material such as an inner liner or a chafer is wound around a tire building drum, the sheet member is made to adhere to the tire due to mutual adhesion between the rubber band and the sheet member. It is held on the outer periphery of the molding drum. At this time, in the present invention, the surface of the rubber band for the tire molding drum has at least two types of surface roughness, that is, dense and rough, and the rough portion is a base surface of the surface. Are formed in at least two strips along the circumferential direction,
By mainly holding the sheet member in the mirror-finished portion, the rubber band for the tire forming drum and the sheet member are easily adhered to and separated from each other. As a result, the sheet member can be reliably wound and held around the tire building drum, and when the forming step is completed, the sheet member can be quickly removed from the tire building drum and delivered to the next stage.
【０００８】請求項２に記載の本発明は、請求項１に記
載のタイヤ成型ドラムゴムバンドにおいて、前記鏡面加
工の部分は、前記タイヤ成型ドラムに巻き付けるシート
部材の幅方向端部に当接する部位に形成されていること
を特徴とする。According to a second aspect of the present invention, there is provided the rubber band for a tire forming drum according to the first aspect, wherein the mirror-finished portion contacts a widthwise end of a sheet member wound around the tire forming drum. It is characterized by being formed in.
【０００９】従って、請求項１に記載の内容に加えて、
粘着性が特に必要なタイヤ成型ドラムに巻き付けるシー
ト部材の幅方向端部に粘着性の高い鏡面加工の帯が当接
するため、シート部材の幅方向端部のメクレを確実に防
止できる。Therefore, in addition to the contents described in claim 1,
Since a highly adhesive mirror-finished band abuts on the widthwise end of the sheet member wound around the tire building drum particularly requiring adhesiveness, it is possible to reliably prevent the widthwise end of the sheet member from being rounded.
【００１０】請求項３に記載の本発明は、請求項１に記
載のタイヤ成型ドラムゴムバンドにおいて、前記鏡面加
工の部分と前記基礎面とがタイヤ成型ドラムの軸方向に
沿って交互に配列されていることを特徴とする。According to a third aspect of the present invention, in the rubber band for a tire building drum according to the first aspect, the mirror-finished portion and the base surface are alternately arranged along the axial direction of the tire building drum. It is characterized by having.
【００１１】従って、請求項１に記載の内容に加えて、
粘着性が高い鏡面加工の部分と、粘着性が低い基礎面と
が、タイヤ成型ドラムに巻き付けるシート部材に、タイ
ヤ成型ドラムの軸方向に沿って交互に当接するため、幅
の異なるシート部材を確実に保持することができる。Therefore, in addition to the contents described in claim 1,
The mirror-finished surface with high adhesiveness and the base surface with low adhesiveness alternately contact the sheet member wound around the tire building drum along the axial direction of the tire building drum, so that sheet members with different widths can be reliably used. Can be held.
【００１２】請求項４に記載の本発明は、請求項１に記
載のタイヤ成型ドラムゴムバンドにおいて、前記鏡面加
工の部分である周方向の帯の幅は、１５mm〜３０mmであ
ることを特徴とする。According to a fourth aspect of the present invention, in the rubber band of the tire forming drum according to the first aspect, a width of a circumferential band which is a mirror-finished portion is 15 mm to 30 mm. I do.
【００１３】従って、請求項１に記載の内容に加えて、
鏡面加工の部分である周方向の帯の幅が１５mm〜３０mm
であるため、タイヤ成型ドラムとともにタイヤ成型ドラ
ムゴムバンドが収縮した際に、タイヤ成型ドラムゴムバ
ンドからシート部材が容易に外れる。Therefore, in addition to the contents described in claim 1,
The width of the circumferential band, which is a mirror-finished part, is 15mm to 30mm
Therefore, when the tire building drum rubber band shrinks together with the tire building drum, the sheet member easily comes off from the tire building drum rubber band.
【００１４】請求項５に記載の本発明は、請求項１に記
載のタイヤ成型ドラムゴムバンドにおいて、全表面に対
する前記鏡面加工した部分の面積比が１０％〜４０％で
あることを特徴とする。According to a fifth aspect of the present invention, in the rubber band for a tire forming drum according to the first aspect, an area ratio of the mirror-finished portion to the entire surface is 10% to 40%. .
【００１５】従って、請求項１に記載の内容に加えて、
全表面に対する鏡面加工した部分の面積比が１０％〜４
０％であるため、タイヤ成型ドラムとともにタイヤ成型
ドラムゴムバンドが収縮した際に、タイヤ成型ドラムゴ
ムバンドからシート部材が容易に外れる。Therefore, in addition to the contents described in claim 1,
The area ratio of the mirror-finished portion to the entire surface is 10% to 4
Since it is 0%, when the tire building drum rubber band shrinks together with the tire building drum, the sheet member easily comes off from the tire building drum rubber band.
【００１６】[0016]
【発明の実施の形態】本発明におけるタイヤ成型ドラム
ゴムバンドの一実施形態を図１〜図４に基づいて詳細に
説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a rubber band for a tire forming drum according to the present invention will be described in detail with reference to FIGS.
【００１７】図１に示される如く、本実施形態のタイヤ
成型ドラム１０は、自動車用ラジアルタイヤの１５〜１
６インチサイズのタイヤ成型ドラムであり、このタイヤ
成型ドラム１０は、タイヤ成型ドラム１０の軸１２方向
（外周面の幅方向）に沿って、中央ドラム１４と左右の
サイドブラダー１６、１８とに分割されている。As shown in FIG. 1, a tire building drum 10 of the present embodiment is a radial tire for automobiles 15 to 1.
The tire building drum 10 is a 6-inch tire building drum. The tire building drum 10 is divided into a central drum 14 and left and right side bladders 16 and 18 along the axis 12 of the tire building drum 10 (the width direction of the outer peripheral surface). Have been.
【００１８】なお、左右のサイドブラダー１６、１８
は、 それぞれタイヤ構成部材の側縁部を保持した状態で
中央ドラム１４に向かってスライドしてタイヤ成型ドラ
ム１０の幅を縮小させる構成とされている。The left and right side bladders 16, 18
Are configured to reduce the width of the tire building drum 10 by sliding toward the center drum 14 while holding the side edges of the tire constituent members.
【００１９】図３及び図４に示される如く、中央ドラム
１４はその外周部が周方向に沿って複数に分割され、そ
れぞれのセグメント１４Ａ、１４Ｂ、１４Ｃ、１４Ｄ、
…は中央ドラム１４の径Ｒを拡大させる方向及び縮小さ
せる方向に移動可能に構成されている。As shown in FIGS. 3 and 4, the outer peripheral portion of the central drum 14 is divided into a plurality of parts along the circumferential direction, and the respective segments 14A, 14B, 14C, 14D,
Are configured to be movable in the direction of increasing and decreasing the diameter R of the central drum 14.
【００２０】また、中央ドラム１４の外周部表面には、
伸縮性豊かなゴムで作られた円筒状のタイヤ成型ドラム
ゴムバンド２０（以下、ドラムゴムバンド２０という）
が配設されており、隣接するセグメント間の段付き部を
緩衝している。また、このドラムゴムバンド２０は、イ
ンナーライナー、チェーファーなどのゴム材から成るシ
ート部材２２を中央ドラム１４に巻き付けるために、ド
ラムゴムバンド２０とシート部材２２の相互の粘着性に
よって、シート部材２２を保持する程度の粘着性を有し
ている。On the outer peripheral surface of the central drum 14,
Cylindrical tire molding drum rubber band 20 made of elastic rubber (hereinafter referred to as drum rubber band 20)
Are provided to buffer the step between adjacent segments. In addition, the drum rubber band 20 is formed by the mutual adhesion between the drum rubber band 20 and the sheet member 22 in order to wind the sheet member 22 made of a rubber material such as an inner liner or a chafer around the central drum 14. To the extent that it retains
【００２１】図２に示される如く、ドラムゴムバンド２
０の表面２０Ａは、密と粗の少なくとも２種類以上の表
面粗さを持っており、粗の部分３０が、表面２０Ａの基
礎面となり、密の鏡面加工した部分３２が周方向に沿っ
て帯状に形成されており、この鏡面加工の部分３２で主
にシート部材２２を保持するようになっている。As shown in FIG. 2, the drum rubber band 2
0 surface 20A has at least two types of surface roughness, dense and rough, the rough portion 30 serves as a base surface of the surface 20A, and the dense mirror-finished portion 32 has a belt-like shape along the circumferential direction. The mirror-finished portion 32 mainly holds the sheet member 22.
【００２２】なお、本実施形態では、鏡面加工の部分
（帯）３２を粗の部分３０と交互に６本形成している。
また、各鏡面加工の部分３２の配設位置は、ドラムゴム
バンド２０の幅方向中心ＣＬから、Ｌ１＝５０mm、Ｌ２
＝１４０mm、Ｌ３＝２００mm、それぞれの許容±１０mm
に設定されており、Ｌ３の位置に設定した鏡面加工の部
分３２は、粘着性が特に必要な巻き付けるシート部材２
２の幅方向端部２２Ａに当接するようになっている。ま
た、Ｌ１の位置に設定した鏡面加工の部分３２は、巻き
付けるシート部材２２の幅方向中央部近傍に当接するよ
うになっている。In this embodiment, six mirror-finished portions (bands) 32 are formed alternately with the rough portions 30.
The positions of the mirror-finished portions 32 are L1 = 50 mm, L2 from the center CL in the width direction of the drum rubber band 20.
= 140mm, L3 = 200mm, each tolerance ± 10mm
And the mirror-finished portion 32 set at the position of L3 is a sheet member 2 to be wound around which is particularly required to have adhesiveness.
2 is in contact with the width direction end 22A. In addition, the mirror-finished portion 32 set at the position L1 comes into contact with the sheet member 22 to be wound near the center in the width direction.
【００２３】また、本実施形態では、各鏡面加工の部分
３２の幅ＷをＷ＝１８mmとしており、鏡面加工の部分３
２の表面粗さを１０-6ｍ〜１０-5ｍ、表面粗さの粗い部
分３０の表面粗さを１０-4ｍ〜１０-3ｍとしている。In this embodiment, the width W of each mirror-finished portion 32 is set to 18 mm, and the width of the mirror-finished portion 3 is set to 18 mm.
The surface roughness of No. 2 is 10 −6 m to 10 −5 m, and the surface roughness of the portion 30 having a high surface roughness is 10 −4 m to 10 −3 m.
【００２４】次に、本実施形態の作用を説明する。Next, the operation of the present embodiment will be described.
【００２５】本実施形態では、図２に二点鎖線で示され
るように、シート部材２２をタイヤ成型ドラム１０に巻
きつけた場合には、ドラムゴムバンド２０とシート部材
２２との相互の粘着性によって、シート部材２２がタイ
ヤ成型ドラム１０の外周部に保持される。In the present embodiment, when the sheet member 22 is wound around the tire building drum 10 as shown by a two-dot chain line in FIG. Thereby, the sheet member 22 is held on the outer peripheral portion of the tire building drum 10.
【００２６】この際、本実施形態では、ドラムゴムバン
ド２０の表面２０Ａが、密と粗の表面粗さを持ち、粗の
部分３０が表面２０Ａの基礎面となっており、密の鏡面
加工の部分３２が周方向に沿って帯状に６本形成されて
いるため、鏡面加工の部分３２で主にシート部材２２を
保持することで、ドラムゴムバンド２０とシート部材２
２とがくっつき易く、且つ離れ易い。In this case, in the present embodiment, the surface 20A of the drum rubber band 20 has a dense and rough surface roughness, and the rough portion 30 is a base surface of the surface 20A, and the surface of the rubber rubber band 20 is a mirror-finished surface. Since the six portions 32 are formed in a strip shape along the circumferential direction, the drum member 20 and the sheet member 2 are mainly held by the mirror-finished portion 32 by holding the sheet member 22.
2 easily sticks and separates.
【００２７】この結果、シート部材２２を確実にタイヤ
成型ドラム１０に巻き付け保持し、且つその成型ステッ
プが終了したら、図４に示される如く、速やかにシート
部材２２をタイヤ成型ドラム２０から外し、次のステー
ジに送達することができる。このため、例えば、インナ
ーライナーの巻き付け不良によるサポート落ち、インナ
ーライナーのメクレ、チェーファーのメクレ等の修理
率、スクラップ率を低減できると共に、インナーライナ
ーの巻き付け不良を手直しするための作業停止時間が減
少し、生産性が向上する。As a result, the sheet member 22 is securely wound around and held on the tire building drum 10, and when the forming step is completed, the sheet member 22 is immediately removed from the tire building drum 20 as shown in FIG. Stage. For this reason, for example, it is possible to reduce the rate of repair such as falling support due to poor winding of the inner liner, the inner liner's square, chafer's square, etc. And productivity is improved.
【００２８】また、本実施形態では、図２に示される如
く、シート部材２２の幅方向端部２２Ａに粘着性の高い
鏡面加工の部分３２が当接するため、シート部材２２の
幅方向端部２２Ａのメクレを確実に防止できる。In the present embodiment, as shown in FIG. 2, the highly adhesive mirror-finished portion 32 abuts on the widthwise end 22A of the sheet member 22, so that the widthwise end 22A of the sheet member 22 is contacted. Can be reliably prevented.
【００２９】また、本実施形態では、粘着性が高い鏡面
加工の部分３２と、粘着性が低い部分３０から成る基礎
面とが、タイヤ成型ドラム１０に巻き付けるシート部材
２２に、タイヤ成型ドラム１０の軸方向に沿って交互に
当接するため、幅の異なるシート部材２２を確実に保持
することができる。In the present embodiment, the mirror-finished portion 32 having high adhesiveness and the base surface including the portion 30 having low adhesiveness are attached to the sheet member 22 wound around the tire building drum 10 by the tire forming drum 10. Since the sheet members 22 alternately contact each other along the axial direction, the sheet members 22 having different widths can be reliably held.
【００３０】また、本実施形態では、鏡面加工の部分３
２である周方向の帯の幅Ｗが１８mmであるため、図４に
示される如く、タイヤ成型ドラム１０とともにドラムゴ
ムバンド２０が収縮した際に、ドラムゴムバンド２０か
らシート部材２２が容易に外れる。In this embodiment, the mirror-finished portion 3
2, the width W of the circumferential band is 18 mm, so that when the drum rubber band 20 contracts together with the tire building drum 10, the sheet member 22 easily comes off from the drum rubber band 20, as shown in FIG. .
【００３１】また、本実施形態では、複数の鏡面加工の
部分３２のうちの一対の配設位置を、ドラムゴムバンド
２０の幅方向中心ＣＬから、Ｌ３＝２００mmとしたた
め、ラジアルタイヤの１５〜１６インチのシート部材の
殆どに対応できる。In this embodiment, since a pair of arrangement positions of the plurality of mirror-finished portions 32 are L3 = 200 mm from the center CL in the width direction of the drum rubber band 20, the radial tires 15 to 16 are provided. Compatible with almost all inch sheet members.
【００３２】なお、鏡面加工した部分３２の幅、数及び
面積比と、粘着力との関係は次表１のようになる。The relationship between the width, the number and the area ratio of the mirror-finished portion 32 and the adhesive strength is as shown in Table 1 below.
【００３３】[0033]
【表１】 [Table 1]
【００３４】従って、鏡面加工の部分３２である帯の幅
Ｗは１５mm〜３０mmであることが好ましい。また、鏡面
加工の部分３２である帯の数は４本〜１０本が好まし
い。また、ドラムゴムバンドの全表面に対する鏡面加工
した部分の面積比は１０％〜４０％が好ましい。Therefore, it is preferable that the width W of the band which is the mirror-finished portion 32 is 15 mm to 30 mm. Further, the number of bands which are the mirror-finished portions 32 is preferably 4 to 10. The area ratio of the mirror-finished portion to the entire surface of the drum rubber band is preferably 10% to 40%.
【００３５】以上に於いては、本発明を特定の実施形態
について詳細に説明したが、本発明はかかる実施形態に
限定されるものではなく、本発明の範囲内にて他の種々
の実施形態が可能であることは当業者にとって明らかで
ある。例えば、鏡面加工の部分３２の表面粗さを１０-6
ｍ〜１０-5ｍ、表面粗さの粗い部分３０の表面粗さを１
０-4ｍ〜１０-3ｍとしが、鏡面加工の部分３２の表面粗
さ及び表面粗さの粗い部分３０の表面粗さは、他の値と
しても良い。In the above, the present invention has been described in detail with respect to a specific embodiment. However, the present invention is not limited to such an embodiment, and various other embodiments are included in the scope of the present invention. It is clear to a person skilled in the art that is possible. For example, the surface roughness of the mirror-finished portion 32 is set to 10 −6.
m to 10 -5 m, the surface roughness of the portion 30 having a high surface roughness is 1
Although it is 0 -4 m to 10 -3 m, the surface roughness of the mirror-finished portion 32 and the surface roughness of the portion 30 having a high surface roughness may be other values.
【００３６】[0036]
【発明の効果】請求項１に記載の本発明は、タイヤ成型
ドラムの外周部表面に設置された伸縮性豊かなゴムで作
られた円筒状のタイヤ成型ドラムゴムバンドであって、
密と粗の少なくとも２種類以上の表面粗さを持ち、粗の
部分が表面の基礎面となっており、密の鏡面加工の部分
が周方向に沿って帯状に少なくとも２本以上形成されて
いるため、シート部材を確実にタイヤ成型ドラムに巻き
付け保持し、且つその成型ステップが終了したら速やか
にシート部材をタイヤ成型ドラムから外し、次のステー
ジに送達することができるという優れた効果を有する。According to the first aspect of the present invention, there is provided a rubber tire rubber band having a cylindrical shape and made of highly elastic rubber, which is provided on an outer peripheral surface of a tire molding drum,
It has at least two types of surface roughness, dense and rough, the rough part is the basic surface of the surface, and the dense mirror-finished part is formed in at least two strips along the circumferential direction. Therefore, there is an excellent effect that the sheet member can be securely wound and held around the tire building drum, and the sheet member can be immediately removed from the tire building drum after the forming step is completed, and can be delivered to the next stage.
【００３７】請求項２に記載の本発明は、請求項１に記
載のタイヤ成型ドラムゴムバンドにおいて、鏡面加工の
部分は、タイヤ成型ドラムに巻き付けるシート部材の幅
方向端部に当接する部位に形成されているため、請求項
１に記載の効果に加えて、シート部材の幅方向端部のメ
クレを確実に防止できるという優れた効果を有する。According to a second aspect of the present invention, in the rubber band for a tire building drum according to the first aspect, the mirror-finished portion is formed at a portion in contact with an end in the width direction of the sheet member wound around the tire building drum. Therefore, in addition to the effect described in the first aspect, there is an excellent effect that it is possible to reliably prevent the edge of the sheet member at the end in the width direction.
【００３８】請求項３に記載の本発明は、請求項１に記
載のタイヤ成型ドラムゴムバンドにおいて、鏡面加工の
部分と基礎面とがタイヤ成型ドラムの軸方向に沿って交
互に配列されているため、請求項１に記載の効果に加え
て、幅の異なるシート部材を確実に保持することができ
るという優れた効果を有する。According to a third aspect of the present invention, in the tire building drum rubber band according to the first aspect, mirror-finished portions and base surfaces are alternately arranged along the axial direction of the tire building drum. Therefore, in addition to the effect described in claim 1, there is an excellent effect that sheet members having different widths can be reliably held.
【００３９】請求項４に記載の本発明は、請求項１に記
載のタイヤ成型ドラムゴムバンドにおいて、鏡面加工の
部分である周方向の帯の幅は、１５mm〜３０mmであるた
め、請求項１に記載の効果に加えて、タイヤ成型ドラム
ゴムバンドからシート部材が容易に外れるという優れた
効果を有する。According to a fourth aspect of the present invention, in the rubber band for a tire forming drum according to the first aspect, the width of a circumferential band which is a mirror-finished portion is 15 mm to 30 mm. In addition to the effects described in (1), there is an excellent effect that the sheet member easily comes off the rubber band of the tire building drum.
【００４０】請求項５に記載の本発明は、請求項１に記
載のタイヤ成型ドラムゴムバンドにおいて、全表面に対
する鏡面加工した部分の面積比が１０％〜４０％である
ため、請求項１に記載の効果に加えて、タイヤ成型ドラ
ムゴムバンドからシート部材が容易に外れるという優れ
た効果を有する。According to a fifth aspect of the present invention, in the rubber band for a tire forming drum according to the first aspect, the area ratio of the mirror-finished portion to the entire surface is 10% to 40%. In addition to the effects described above, there is an excellent effect that the sheet member easily comes off the rubber band for the tire building drum.
【図１】本発明の一実施形態に係るタイヤ成型ドラムゴ
ムバンドが装着されたタイヤ成型ドラムを示す斜視図で
ある。FIG. 1 is a perspective view showing a tire building drum to which a tire building drum rubber band according to an embodiment of the present invention is attached.
【図２】本発明の一実施形態に係るタイヤ成型ドラムゴ
ムバンドを示す平面図である。FIG. 2 is a plan view showing a tire building drum rubber band according to one embodiment of the present invention.
【図３】図２の３−３線に沿った断面図である。FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;
【図４】本発明の一実施形態に係るタイヤ成型ドラムゴ
ムバンドが収縮した状態を示す図３に対応する断面図で
ある。FIG. 4 is a cross-sectional view corresponding to FIG. 3 and showing a state in which a tire building drum rubber band according to an embodiment of the present invention has contracted.
【図５】従来のタイヤ成型ドラムゴムバンドが装着され
たタイヤ成型ドラムを示す斜視図である。FIG. 5 is a perspective view showing a tire building drum to which a conventional tire building drum rubber band is attached.
１０ タイヤ成型ドラム １４ タイヤ成型ドラムの中央ドラム ２０ タイヤ成型ドラムゴムバンド ２０Ａ タイヤ成型ドラムゴムバンドの表面 ２２ シート部材 ２２Ａ シート部材の幅方向端部 Reference Signs List 10 tire building drum 14 center drum of tire building drum 20 tire building drum rubber band 20A surface of tire building drum rubber band 22 sheet member 22A widthwise end of sheet member
Claims (5)
れた伸縮性豊かなゴムで作られた円筒状のタイヤ成型ド
ラムゴムバンドであって、 密と粗の少なくとも２種類以上の表面粗さを持ち、粗の
部分が表面の基礎面となっており、密の鏡面加工の部分
が周方向に沿って帯状に少なくとも２本以上形成されて
いることを特徴とするタイヤ成型ドラムゴムバンド。Claims 1. A cylindrical rubber band made of elastic rubber, which is provided on the outer peripheral surface of a tire building drum, and has at least two types of surface roughness, dense and rough. A tire molding drum rubber band, characterized in that a rough portion is a base surface of the surface and at least two or more dense mirror-finished portions are formed in a belt shape along the circumferential direction.
ドラムに巻き付けるシート部材の幅方向端部に当接する
部位に形成されていることを特徴とする請求項１に記載
のタイヤ成型ドラムゴムバンド。2. The rubber band for a tire-molding drum according to claim 1, wherein the mirror-finished portion is formed at a portion in contact with a widthwise end of a sheet member wound around the tire-forming drum. .
イヤ成型ドラムの軸方向に沿って交互に配列されている
ことを特徴とする請求項１のタイヤ成型ドラムゴムバン
ド。3. The rubber band for a tire-molding drum according to claim 1, wherein the mirror-finished portion and the base surface are alternately arranged along the axial direction of the tire-forming drum.
幅は、１５mm〜３０mmであることを特徴とする請求項１
に記載のタイヤ成型ドラムゴムバンド。4. The width of a circumferential band, which is a mirror-finished portion, is 15 mm to 30 mm.
2. The rubber band for a tire forming drum according to 1.
面積比が１０％〜４０％であることを特徴とする請求項
１に記載のタイヤ成型ドラムゴムバンド。5. The rubber band according to claim 1, wherein an area ratio of the mirror-finished portion to the entire surface is 10% to 40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000371528A JP4723720B2 (en) | 2000-12-06 | 2000-12-06 | Tire molding drum rubber band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000371528A JP4723720B2 (en) | 2000-12-06 | 2000-12-06 | Tire molding drum rubber band |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002172709A true JP2002172709A (en) | 2002-06-18 |
| JP4723720B2 JP4723720B2 (en) | 2011-07-13 |
Family
ID=18841238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000371528A Expired - Fee Related JP4723720B2 (en) | 2000-12-06 | 2000-12-06 | Tire molding drum rubber band |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4723720B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004103688A1 (en) * | 2003-05-20 | 2004-12-02 | The Yokohama Rubber Co.,Ltd. | Method of producing pneumatic radial tire |
| JP2005035188A (en) * | 2003-07-16 | 2005-02-10 | Yokohama Rubber Co Ltd:The | Tire molding drum |
| JP2007098664A (en) * | 2005-09-30 | 2007-04-19 | Bridgestone Corp | Tire molding drum and tire molding apparatus equipped with the drum |
| WO2009150914A1 (en) * | 2008-06-12 | 2009-12-17 | 富士フイルム株式会社 | Rubber band for packaging, film roll package using same, and manufacturing method for rubber band for packaging |
| WO2010064084A1 (en) | 2008-12-02 | 2010-06-10 | Pirelli Tyre S.P.A. | Process and apparatus for building tyres for vehicle wheels |
| JP2012143946A (en) * | 2011-01-11 | 2012-08-02 | Bridgestone Corp | Device and method for manufacturing tire |
| JP2013216022A (en) * | 2012-04-10 | 2013-10-24 | Sumitomo Rubber Ind Ltd | Tire molding device |
| JP2014111377A (en) * | 2014-01-06 | 2014-06-19 | Pirelli Tyre Spa | Method and apparatus for constructing tire for vehicular wheel |
| WO2015190197A1 (en) * | 2014-06-12 | 2015-12-17 | 株式会社ブリヂストン | Tire-forming drum |
| JP2018079570A (en) * | 2016-11-14 | 2018-05-24 | 住友ゴム工業株式会社 | Molding device of rubber member for tire |
| JP2018079569A (en) * | 2016-11-14 | 2018-05-24 | 住友ゴム工業株式会社 | Molding device of rubber member for tire |
| JP2018079571A (en) * | 2016-11-14 | 2018-05-24 | 住友ゴム工業株式会社 | Molding device of rubber member for tire |
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| JPS5824330U (en) * | 1981-08-12 | 1983-02-16 | 株式会社ブリヂストン | Former bladder for radial tire molding |
| JPH10291259A (en) * | 1997-01-24 | 1998-11-04 | Bridgestone Corp | Wear resistant elastomer member of drum for assembling tire |
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2000
- 2000-12-06 JP JP2000371528A patent/JP4723720B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824330A (en) * | 1981-08-03 | 1983-02-14 | Babcock Hitachi Kk | Granulator |
| JPS5824330U (en) * | 1981-08-12 | 1983-02-16 | 株式会社ブリヂストン | Former bladder for radial tire molding |
| JPH10291259A (en) * | 1997-01-24 | 1998-11-04 | Bridgestone Corp | Wear resistant elastomer member of drum for assembling tire |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004103688A1 (en) * | 2003-05-20 | 2004-12-02 | The Yokohama Rubber Co.,Ltd. | Method of producing pneumatic radial tire |
| JP2005035188A (en) * | 2003-07-16 | 2005-02-10 | Yokohama Rubber Co Ltd:The | Tire molding drum |
| JP4614857B2 (en) * | 2005-09-30 | 2011-01-19 | 株式会社ブリヂストン | Tire molding drum |
| JP2007098664A (en) * | 2005-09-30 | 2007-04-19 | Bridgestone Corp | Tire molding drum and tire molding apparatus equipped with the drum |
| WO2009150914A1 (en) * | 2008-06-12 | 2009-12-17 | 富士フイルム株式会社 | Rubber band for packaging, film roll package using same, and manufacturing method for rubber band for packaging |
| US9789658B2 (en) | 2008-12-02 | 2017-10-17 | Pirelli Tyre S.P.A. | Process and apparatus for building tyres for vehicle wheels |
| JP2012510387A (en) * | 2008-12-02 | 2012-05-10 | ピレリ・タイヤ・ソチエタ・ペル・アツィオーニ | Method and apparatus for building tires for vehicle wheels |
| WO2010064084A1 (en) | 2008-12-02 | 2010-06-10 | Pirelli Tyre S.P.A. | Process and apparatus for building tyres for vehicle wheels |
| US10730258B2 (en) | 2008-12-02 | 2020-08-04 | Pirelli Tyre S.P.A. | Process and apparatus for building tyres for vehicle wheels |
| JP2012143946A (en) * | 2011-01-11 | 2012-08-02 | Bridgestone Corp | Device and method for manufacturing tire |
| JP2013216022A (en) * | 2012-04-10 | 2013-10-24 | Sumitomo Rubber Ind Ltd | Tire molding device |
| JP2014111377A (en) * | 2014-01-06 | 2014-06-19 | Pirelli Tyre Spa | Method and apparatus for constructing tire for vehicular wheel |
| WO2015190197A1 (en) * | 2014-06-12 | 2015-12-17 | 株式会社ブリヂストン | Tire-forming drum |
| JP2016000494A (en) * | 2014-06-12 | 2016-01-07 | 株式会社ブリヂストン | Tire molding drum |
| US10654234B2 (en) | 2014-06-12 | 2020-05-19 | Bridgestone Corporation | Tire building drum |
| JP2018079570A (en) * | 2016-11-14 | 2018-05-24 | 住友ゴム工業株式会社 | Molding device of rubber member for tire |
| JP2018079569A (en) * | 2016-11-14 | 2018-05-24 | 住友ゴム工業株式会社 | Molding device of rubber member for tire |
| JP2018079571A (en) * | 2016-11-14 | 2018-05-24 | 住友ゴム工業株式会社 | Molding device of rubber member for tire |
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| JP4723720B2 (en) | 2011-07-13 |
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