JP5604224B2 - Method for molding tire component and tire molding drum - Google Patents
Method for molding tire component and tire molding drum Download PDFInfo
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- JP5604224B2 JP5604224B2 JP2010187681A JP2010187681A JP5604224B2 JP 5604224 B2 JP5604224 B2 JP 5604224B2 JP 2010187681 A JP2010187681 A JP 2010187681A JP 2010187681 A JP2010187681 A JP 2010187681A JP 5604224 B2 JP5604224 B2 JP 5604224B2
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- 238000000465 moulding Methods 0.000 title claims description 99
- 238000000034 method Methods 0.000 title claims description 28
- 239000000463 material Substances 0.000 claims description 51
- 239000000470 constituent Substances 0.000 claims description 36
- 230000002093 peripheral effect Effects 0.000 claims description 34
- 238000010073 coating (rubber) Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 230000012447 hatching Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Description
本発明は、外周面にシート状材料を巻き付けてドラム構成部材を成型するドラム構成部材の成型方法及びタイヤ成型ドラムに関する。 The present invention relates to a drum constituent member molding method and a tire molding drum in which a sheet constituent material is wound around an outer peripheral surface to form a drum constituent member.
従来、タイヤ構成部材の成型方法及びタイヤ成型ドラムについては、例えば、特許文献1がある。この従来技術では、タイヤ成型ドラムの外周面に巻き付けたシート状材料のずれや落下を防止するため、シート状材料を刺通可能な先端形状を有する係止爪を、その少なくとも一部が成型ドラム外周面からドラム径方向外側に突出した作動位置と、その全部がドラム内に格納された休止位置との間を移動可能に配設している。 Conventionally, for example, Patent Literature 1 discloses a method for molding a tire component and a tire molding drum. In this prior art, in order to prevent the sheet-like material wound around the outer peripheral surface of the tire-forming drum from being displaced or dropped, at least a part of the locking claw having a tip shape capable of piercing the sheet-like material is formed on the molding drum. It is arranged to be movable between an operating position that protrudes outward in the drum radial direction from the outer peripheral surface and a rest position that is entirely stored in the drum.
しかしながら、特許文献1では、タイヤ成型ドラムに設けた係止爪の押し出しを、例えば、空気圧若しくは油圧により作動するピストン、又はドラムの回転軸に連動したカム若しくはリンク機構、又はモーター等の駆動手段を用いて行う必要がある。このため、装置の構成が複雑になり、コストアップになる。 However, in Patent Document 1, the pushing of the locking claw provided on the tire molding drum is performed by, for example, a piston operated by air pressure or hydraulic pressure, or a cam or link mechanism linked to the drum rotation shaft, or a driving means such as a motor. It is necessary to use it. For this reason, the configuration of the apparatus becomes complicated and the cost increases.
本発明は、上記問題を考慮し、シート状材料のずれや落下を容易に防止できるタイヤ構成部材の成型方法及びタイヤ成型ドラムを提供することが目的である。 In view of the above problems, an object of the present invention is to provide a method for molding a tire constituent member and a tire molding drum that can easily prevent the sheet-like material from shifting or dropping.
請求項1に記載の本発明のタイヤ構成部材の成型方法は、外周面の周方向全域に正転方向へ傾斜している複数の刺状突起が立設されたタイヤ成型ドラムを、前記正転方向へ回転させながら前記タイヤ成型ドラムの外周面にシート状材料を巻き付けると共に、前記シート状材料に前記複数の刺状突起を刺して前記タイヤ成型ドラムの外周面に前記シート状材料を保持する。 According to a first aspect of the present invention, there is provided a method for molding a tire component member comprising: a tire molding drum in which a plurality of stab-like protrusions that are inclined in a normal rotation direction are erected on the entire circumferential direction of an outer peripheral surface ; The sheet-like material is wound around the outer peripheral surface of the tire molding drum while rotating in the direction, and the sheet-like material is held on the outer peripheral surface of the tire molding drum by piercing the sheet-like material.
請求項1に記載のタイヤ構成部材の成型方法では、外周面の周方向全域に正転方向へ傾斜している複数の刺状突起が立設されたタイヤ成型ドラムを、正転方向へ回転させながらタイヤ成型ドラムの外周面にシート状材料を巻き付ける。このとき、シート状材料にタイヤ成型ドラムの外周面の周方向全域に立設された複数の刺状突起を刺してタイヤ成型ドラムの外周面にシート状材料を保持する。このため、シート状材料のずれや落下を容易に防止できる。 In the method for molding a tire constituent member according to claim 1, a tire molding drum in which a plurality of stab-like projections inclined in the normal rotation direction is provided in the entire circumferential direction of the outer peripheral surface is rotated in the normal rotation direction. The sheet material is wound around the outer peripheral surface of the tire molding drum. At this time, the sheet-like material is held on the outer peripheral surface of the tire molding drum by piercing the sheet-like material with a plurality of stab-like projections erected in the entire circumferential direction of the outer peripheral surface of the tire molding drum. For this reason, the shift | offset | difference and fall of a sheet-like material can be prevented easily.
請求項2に記載の本発明は、請求項1に記載のタイヤ構成部材の成型方法において、前記シート状材料の両端部を接合してタイヤ構成部材を成型した後、前記タイヤ構成部材を保持した状態で前記タイヤ成型ドラムの径を縮小させながら前記タイヤ成型ドラムを逆転方向へ回転させて、前記タイヤ構成部材から前記複数の刺状突起を抜き、前記タイヤ成型ドラムから前記タイヤ構成部材を取り外す。 According to a second aspect of the present invention, in the method for molding a tire constituent member according to the first aspect, after the tire constituent member is molded by joining both end portions of the sheet-like material, the tire constituent member is held. In a state, the tire molding drum is rotated in the reverse direction while reducing the diameter of the tire molding drum, the plurality of barb protrusions are extracted from the tire component, and the tire component is removed from the tire molding drum.
請求項2に記載のドラム構成部材の成型方法によれば、シート状材料の両端部を接合してタイヤ構成部材を成型した後、タイヤ構成部材を保持した状態で、タイヤ成型ドラムの径を縮小させながらタイヤ成型ドラムを逆転方向へ回転させて、タイヤ構成部材から複数の刺状突起を抜き、タイヤ成型ドラムからタイヤ構成部材を取り外す。このため、タイヤ構成部材とタイヤ成型ドラムとが密着することが無く、タイヤ構成部材をタイヤ成型ドラムから容易に取り外すことができる。 According to the method for molding a drum component according to claim 2, after the tire component is molded by joining both ends of the sheet-like material, the diameter of the tire molding drum is reduced while the tire component is held. The tire molding drum is rotated in the reverse rotation direction while removing the plurality of stab-like projections from the tire constituent member, and the tire constituent member is removed from the tire molding drum. For this reason, the tire constituent member and the tire molding drum are not in close contact with each other, and the tire constituent member can be easily detached from the tire molding drum.
請求項3に記載の本発明は、請求項1または請求項2に記載のタイヤ構成部材の成型方法において、前記シート状材料は、タイヤ赤道面に対して傾斜する複数本のコードをゴム被覆してなる交錯ベルトである。 According to a third aspect of the present invention, in the method for molding a tire constituent member according to the first or second aspect, the sheet-like material is formed by rubber coating a plurality of cords inclined with respect to the tire equatorial plane. It is a crossing belt.
請求項3に記載のドラム構成部材の成型方法によれば、シート状材料がタイヤ赤道面に対して傾斜する複数本のコードをゴム被覆してなる交錯ベルトであるため、交錯ベルト層を容易に成型できる。 According to the method for molding a drum constituent member according to claim 3, since the sheet-like material is a cross belt formed by rubber coating a plurality of cords inclined with respect to the tire equatorial plane, the cross belt layer can be easily formed. Can be molded.
請求項4に記載の本発明のタイヤ成型ドラムは、正転逆転が可能なドラム本体と、前記ドラム本体の外周面の周方向全域に立設され正転方向へ傾斜している複数の刺状突起と、を有する。 According to a fourth aspect of the present invention, there is provided a tire molding drum according to the present invention, comprising: a drum body capable of normal rotation and reverse rotation; And a protrusion.
請求項4に記載のタイヤ成型ドラムでは、正転逆転が可能なドラム本体の外周面の周方向全域に正転方向へ傾斜している複数の刺状突起が立設されており、これらの複数の刺状突起がタイヤ成型ドラムの外周面に巻き付けられるシート状材料に刺さることで、タイヤ成型ドラムの外周面にシート状材料を保持できる。この結果、シート状材料のずれや落下を容易に防止できる。 In the tire molding drum according to claim 4, a plurality of stab-like protrusions inclined in the normal rotation direction are erected over the entire circumferential direction of the outer peripheral surface of the drum body capable of normal rotation and reverse rotation. The stab-like projections are stuck in the sheet-like material wound around the outer peripheral surface of the tire molding drum, whereby the sheet-like material can be held on the outer peripheral surface of the tire molding drum. As a result, it is possible to easily prevent the sheet-like material from shifting or dropping.
請求項1に記載の本発明に係るタイヤ構成部材の成型方法は、上記方法としたので、シート状材料のずれや落下を容易に防止できる。 Since the molding method of the tire constituent member according to the first aspect of the present invention is the above-described method, it is possible to easily prevent the sheet-like material from being displaced or dropped.
請求項2に記載の本発明に係るタイヤ構成部材の成型方法は、上記方法としたので、タイヤ構成部材をタイヤ成型ドラムから容易に取り外すことができる。 Since the method for molding a tire constituent member according to the second aspect of the present invention is the above method, the tire constituent member can be easily detached from the tire molding drum.
請求項3に記載の本発明に係るタイヤ構成部材の成型方法は、上記方法としたので、交錯ベルト層を容易に成型できる。 Since the molding method of the tire constituent member according to the third aspect of the present invention is the above-described method, the crossing belt layer can be easily molded.
請求項4に記載の本発明に係るタイヤ成型ドラムは、上記構成としたので、シート状材料のずれや落下を容易に防止できる。 Since the tire molding drum according to the fourth aspect of the present invention has the above-described configuration, it is possible to easily prevent the sheet-like material from being displaced or dropped.
以下、図1〜図6に従って本発明に係るタイヤ構成部材の成型方法及びタイヤ成型ドラムの一実施形態について説明する。 Hereinafter, one embodiment of a method for molding a tire constituent member and a tire molding drum according to the present invention will be described with reference to FIGS.
(タイヤ成型ドラム)
図1に示すように、本実施形態のタイヤ成型ドラム10のドラム本体20は回転軸22に取付けられており、回転軸22は駆動装置(図示省略)を操作することで、正転方向(図1の矢印A方向)と逆転方向(図1の矢印B方向)とへ回転可能となっている。また、タイヤ成型ドラム10のドラム本体20における外周面20Aには、複数の刺状突起24がドラム本体20の両端部を除く周方向全域に形成されている。なお、正転方向とは、ドラム本体20の外周面20Aにシート状材料を巻き付ける際の回転方向である。
(Tire molding drum)
As shown in FIG. 1, the drum body 20 of the tire molding drum 10 of the present embodiment is attached to a rotating shaft 22, and the rotating shaft 22 operates in the normal rotation direction (not shown) by operating a driving device (not shown). 1 arrow a direction) and opposite the rolling direction (and is rotatable f direction of arrow B) and FIG. A plurality of barb projections 24 are formed on the outer peripheral surface 20 </ b> A of the drum main body 20 of the tire molding drum 10 in the entire circumferential direction excluding both ends of the drum main body 20. The normal rotation direction is the rotation direction when the sheet-like material is wound around the outer peripheral surface 20A of the drum body 20.
図2に示すように、刺状突起24は、タイヤ成型ドラム10の外周面20Aにおけるタイヤ成型ドラム10の軸線10Aに沿った幅W1の範囲に形成されており、刺状突起24の幅W1はシート状材料12の幅W2より広くなっている(W1>W2)。 As shown in FIG. 2, the stab protrusion 24 is formed in the range of the width W1 along the axis 10A of the tire molding drum 10 on the outer peripheral surface 20A of the tire molding drum 10, and the width W1 of the stab protrusion 24 is It is wider than the width W2 of the sheet-like material 12 (W1> W2).
図4に示すように、刺状突起24はタイヤ成型ドラム10の正転方向(図4の矢印A方向)へ傾斜している。より具体的に説明すると、刺状突起24は円錐形状となっており、先端24Aから円形の下面24Bの中心24Cに伸びる中心線24Dが、タイヤ成型ドラム10の正転方向(図4の矢印A方向)へ傾斜している(傾斜角θ1)と共に、先端24Aから下面24Bの正転方向の先端24Eに伸びる外周線24Fが、タイヤ成型ドラム10の正転方向(図4の矢印A方向)へ傾斜している(傾斜角θ2)。 As shown in FIG. 4, the stab-like protrusion 24 is inclined in the normal rotation direction of the tire molding drum 10 (the direction of arrow A in FIG. 4). More specifically, the stab-like protrusion 24 has a conical shape, and a center line 24D extending from the tip 24A to the center 24C of the circular lower surface 24B is a forward rotation direction of the tire molding drum 10 (arrow A in FIG. 4). The outer peripheral line 24F that is inclined (inclination angle θ1) and extends from the tip 24A to the tip 24E in the forward direction of the lower surface 24B is directed in the forward direction of the tire molding drum 10 (the direction of arrow A in FIG. 4). It is inclined (inclination angle θ2).
従って、タイヤ成型ドラム10を正転方向(図4の矢印A方向)へ回転させて、シート状材料12をタイヤ成型ドラム10に巻き付ける際に、タイヤ成型ドラム10の正転方向(図4の矢印A方向)への回転速度V1に対して、シート状材料12の搬送速度V2を遅くして(V1>V2)、シート状材料12にテンションを作用させることで、刺状突起24の先端24Aがシート状材料12の裏面12Aに刺さると共に、刺状突起24がシート状材料12に食い込むようになっている。 Therefore, when the tire molding drum 10 is rotated in the normal rotation direction (arrow A direction in FIG. 4) and the sheet-like material 12 is wound around the tire molding drum 10, the normal rotation direction of the tire molding drum 10 (arrow in FIG. 4). The conveyance speed V2 of the sheet-like material 12 is slowed (V1> V2) with respect to the rotation speed V1 in the A direction), and tension is applied to the sheet-like material 12, so that the tip 24A of the stab-like protrusion 24 is The back surface 12A of the sheet-like material 12 is stabbed, and the stab-like projection 24 bites into the sheet-like material 12.
なお、図5に示すように、タイヤ成型ドラム10の外周側には、タイヤ構成部材30を保持するためのタイヤ構成部材保持装置のアーム40が周方向に所定の間隔で複数配置されている。 As shown in FIG. 5, a plurality of arms 40 of the tire constituent member holding device for holding the tire constituent member 30 are arranged on the outer peripheral side of the tire molding drum 10 at predetermined intervals in the circumferential direction.
なお、タイヤ構成部材保持装置の基本的な構成は、複数のアーム40を、タイヤ構成部材30の外周部30Aを保持する保持位置(図5に実線で示す位置)と、タイヤ構成部材30の外周部30Aから離間した待機位置(図5に二点鎖線で示す位置)と、へ移動可能とする従来から用いられている周知の構成であるため詳細の説明は省略する。 The basic configuration of the tire component holding device is that the plurality of arms 40 are held at a holding position (a position indicated by a solid line in FIG. 5) for holding the outer peripheral portion 30 </ b> A of the tire component 30 and the outer periphery of the tire component 30. Since it is a well-known configuration that has been conventionally used to move to a standby position (a position indicated by a two-dot chain line in FIG. 5) that is separated from the portion 30 </ b> A, detailed description thereof is omitted.
また、タイヤ成型ドラム10におけるドラム本体20の基本的な構成は、複数のセグメントを拡縮可能に設け、ドラム本体20の外周面20Aが拡縮する従来から用いられている周知の構成であるため詳細の説明は省略する。 The basic structure of the drum body 20 in the tire molding drum 10 is a well-known structure that has been conventionally used in which a plurality of segments are provided so as to be able to expand and contract, and the outer peripheral surface 20A of the drum body 20 is expanded and contracted. Description is omitted.
(タイヤ構成部材の成型方法)
図1に示すように、本実施形態では、タイヤ成型ドラム10を正転方向(図4の矢印A方向)へ回転させて、シート状材料12をタイヤ成型ドラム10の外周部の幅方向中央部に巻き付ける。なお、シート状材料12は、図示を省略したサーバーからローラ14、16、18によって図1の矢印D方向へ搬送され、タイヤ成型ドラム10のドラム本体20の外周面20A上に供給される。
(Tire component forming method)
As shown in FIG. 1, in the present embodiment, the tire molding drum 10 is rotated in the normal rotation direction (the direction of arrow A in FIG. 4), and the sheet-like material 12 is centered in the width direction of the outer peripheral portion of the tire molding drum 10. Wrap around. The sheet material 12 is conveyed from a server (not shown) by the rollers 14, 16, and 18 in the direction of arrow D in FIG. 1 and supplied onto the outer peripheral surface 20 </ b> A of the drum body 20 of the tire molding drum 10.
このとき、タイヤ成型ドラム10の正転方向(図4の矢印A方向)への回転速度V1に対して、シート状材料12の搬送速度V2を遅くして(V1>V2)、シート状材料12にテンションを作用させる。これによって、タイヤ成型ドラム10のドラム本体20の外周部20Aに形成された刺状突起24の先端24Aが、シート状材料12の裏面12Aに刺さると共に、刺状突起24がシート状材料12に食い込む。 At this time, the conveyance speed V2 of the sheet-like material 12 is slowed (V1> V2) with respect to the rotational speed V1 of the tire molding drum 10 in the normal rotation direction (the direction of arrow A in FIG. 4), and the sheet-like material 12 is obtained. Apply tension to the. Accordingly, the tip 24A of the stab protrusion 24 formed on the outer peripheral portion 20A of the drum body 20 of the tire molding drum 10 pierces the back surface 12A of the sheet material 12, and the stab protrusion 24 bites into the sheet material 12. .
次に、タイヤ成型ドラム10を正転させつつシート状材料12の供給を続けると、タイヤ成型ドラム10の外周面に沿ってシート状材料12が巻き付けられる。そして、タイヤ成型ドラム10を略1回転させ、シート状材料12の後端部を、既にタイヤ成型ドラム10に巻き付けられたシート状材料12の先端部に載置させる。この状態でシート状材料12の先端部と後端部とをステッチャーロール等を用いて接合すると、図2に示すように、タイヤ成型ドラム10上に円筒状のタイヤ構成部材30が成型される。 Next, when the supply of the sheet-like material 12 is continued while the tire molding drum 10 is rotated forward, the sheet-like material 12 is wound along the outer peripheral surface of the tire molding drum 10. Then, the tire molding drum 10 is rotated approximately once, and the rear end portion of the sheet-like material 12 is placed on the front end portion of the sheet-like material 12 already wound around the tire molding drum 10. When the leading end and the trailing end of the sheet-like material 12 are joined using a stitcher roll or the like in this state, a cylindrical tire constituent member 30 is molded on the tire molding drum 10 as shown in FIG.
次に、図5に示すように、タイヤ構成部材保持装置のアーム40を待機位置(図5に二点鎖線で示す位置)から保持位置(図5に実線で示す位置)へ移動させて、タイヤ構成部材30を保持する。この状態で、タイヤ成型ドラム10を逆転方向(図5の矢印B方向)へ回転させると同時に、ドラム本体20の外周面20Aを回転軸22に接近する方向(図5の矢印C方向)へ縮径する。これにより、図6に示すように、タイヤ構成部材30の裏面からタイヤ成型ドラム10の刺状突起24が抜ける。 Next, as shown in FIG. 5, the arm 40 of the tire component holding device is moved from the standby position (position shown by a two-dot chain line in FIG. 5) to the holding position (position shown by a solid line in FIG. 5), The structural member 30 is held. In this state, the tire molding drum 10 is rotated in the reverse rotation direction (arrow B direction in FIG. 5), and at the same time, the outer peripheral surface 20A of the drum body 20 is contracted in the direction approaching the rotation shaft 22 (arrow C direction in FIG. 5). Diameter. As a result, as shown in FIG. 6, the stab-like projections 24 of the tire molding drum 10 come out from the back surface of the tire constituent member 30.
次に、タイヤ構成部材保持装置のアーム40によって保持されたタイヤ構成部材30を、タイヤ成型ドラム10に対して、タイヤ成型ドラム10の回転軸22の軸方向へ移動させて、タイヤ構成部材30をタイヤ成型ドラム10から取り外す。 Next, the tire constituent member 30 held by the arm 40 of the tire constituent member holding device is moved in the axial direction of the rotation shaft 22 of the tire forming drum 10 with respect to the tire forming drum 10, so that the tire constituent member 30 is moved. Remove from the tire molding drum 10.
(作用・効果)
本実施形態では、タイヤ成型ドラム10を正転方向へ回転させながらタイヤ成型ドラム10のドラム本体20の外周面20Aにシート状材料12を巻き付けることで、タイヤ成型ドラム10の刺状突起24がシート状材料12に刺さり、タイヤ成型ドラム10のドラム本体20の外周面20Aにシート状材料12を保持できる。このため、タイヤ成型ドラム10からのシート状材料12のずれや落下を容易に防止できる。
(Action / Effect)
In the present embodiment, the sheet-like material 24 is wound around the outer peripheral surface 20A of the drum main body 20 of the tire molding drum 10 while rotating the tire molding drum 10 in the normal rotation direction, so that the stab-like protrusions 24 of the tire molding drum 10 become sheets. The sheet-like material 12 can be held on the outer peripheral surface 20 </ b> A of the drum body 20 of the tire molding drum 10 by being stabbed into the sheet-like material 12. For this reason, the shift | offset | difference and fall of the sheet-like material 12 from the tire molding drum 10 can be prevented easily.
また、本実施形態では、タイヤ成型ドラム10のドラム本体20の外周面20Aにタイヤ成型ドラム10の正転方向へ傾斜している刺状突起24が立設されている。このため、作動位置と休止位置との間を移動する係止爪によってシート状材料をドラムに保持するような従来技術に比べて、タイヤ成型ドラム10の構成が簡単になりコストダウンになる。 Further, in the present embodiment, a stab-like protrusion 24 that is inclined in the normal rotation direction of the tire molding drum 10 is provided upright on the outer peripheral surface 20A of the drum body 20 of the tire molding drum 10. For this reason, the structure of the tire molding drum 10 is simplified and the cost is reduced as compared with the conventional technique in which the sheet-like material is held on the drum by the locking claw that moves between the operating position and the rest position.
また、本実施形態では、図5及び図6に示すように、タイヤ成型ドラム10の径を縮小させながらタイヤ成型ドラム10を逆転方向へ回転させて、タイヤ構成部材30から刺状突起24を抜くことで、タイヤ成型ドラム10からタイヤ構成部材30を取り外すことができる。このため、タイヤ構成部材30とタイヤ成型ドラム10とが密着することが無く、タイヤ構成部材30をタイヤ成型ドラム10から容易に取り外すことができる。 Further, in the present embodiment, as shown in FIGS. 5 and 6, the tire molding drum 10 is rotated in the reverse direction while reducing the diameter of the tire molding drum 10, and the stab protrusions 24 are removed from the tire constituent member 30. Thus, the tire constituent member 30 can be removed from the tire molding drum 10. For this reason, the tire constituent member 30 and the tire molding drum 10 are not in close contact with each other, and the tire constituent member 30 can be easily detached from the tire molding drum 10.
また、本実施形態では、シート状材料12を、図1に破線で示すように、タイヤ赤道面に対して傾斜する複数本のコード40を有し、これらのコード40をゴム被覆した交錯ベルトとすることができる。このため、タイヤ構成部材30としての交錯ベルト層を容易に成型できる。なお、シート状材料12は交錯ベルトに限定されない。 In the present embodiment, the sheet-like material 12 has a plurality of cords 40 inclined with respect to the tire equatorial plane, as shown by broken lines in FIG. can do. For this reason, the crossing belt layer as the tire component 30 can be easily molded. The sheet material 12 is not limited to the cross belt.
(その他の実施形態)
以上、実施形態を挙げて本発明の実施の形態を説明したが、これらの実施形態は一例であり、要旨を逸脱しない範囲内で種々変更して実施できる。また、本発明の権利範囲がこれらの実施形態に限定されないことは言うまでもない。例えば、上記実施形態では、タイヤ成型ドラム10のドラム本体20の外周面20Aに、円錐形状の刺状突起24を形成したが、刺状突起24の形状は、円錐形状に限定されず、円柱の先端部が尖った針形状等の他の形状としてもよい。
(Other embodiments)
The embodiments of the present invention have been described above with reference to the embodiments. However, these embodiments are merely examples, and various modifications can be made without departing from the scope of the invention. It goes without saying that the scope of rights of the present invention is not limited to these embodiments. For example, in the above embodiment, the cone-shaped protrusion 24 is formed on the outer peripheral surface 20A of the drum body 20 of the tire molding drum 10. However, the shape of the protrusion 24 is not limited to the conical shape, and is a cylindrical shape. Other shapes such as a needle shape with a sharp tip may be used.
10 タイヤ成型ドラム
12 シート状材料
20 ドラム本体
20A ドラム本体の外周面
24 刺状突起
30 タイヤ構成部材
DESCRIPTION OF SYMBOLS 10 Tire molding drum 12 Sheet-like material 20 Drum main body 20A The outer peripheral surface of a drum main body 24 Stitch-like protrusion 30 Tire constituent member
Claims (4)
前記ドラム本体の外周面の周方向全域に立設され正転方向へ傾斜している複数の刺状突起と、
を有するタイヤ成型ドラム。 A drum body capable of forward and reverse rotation,
A plurality of stab-like protrusions that are erected in the entire circumferential direction of the outer peripheral surface of the drum body and are inclined in the forward rotation direction ;
Tire molding drum having
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JP2010187681A JP5604224B2 (en) | 2010-08-24 | 2010-08-24 | Method for molding tire component and tire molding drum |
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JP2010187681A JP5604224B2 (en) | 2010-08-24 | 2010-08-24 | Method for molding tire component and tire molding drum |
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JP5604224B2 true JP5604224B2 (en) | 2014-10-08 |
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JPH09193259A (en) * | 1996-01-19 | 1997-07-29 | Sumitomo Rubber Ind Ltd | Method and device for pasting band-like member |
JP2001260248A (en) * | 2000-03-14 | 2001-09-25 | Bridgestone Corp | Method for conveying/feeding carcass ply material and device to be used for the method |
JP2003154579A (en) * | 2001-11-20 | 2003-05-27 | Sumitomo Rubber Ind Ltd | Holing apparatus |
JP2006264049A (en) * | 2005-03-23 | 2006-10-05 | Bridgestone Corp | Tire molding drum and method for molding tire constituent |
JP2009012424A (en) * | 2007-07-09 | 2009-01-22 | Bridgestone Corp | Method for bonding structural material of tire and tire molding device |
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