JP3045459B2 - Carcass ply end joining device - Google Patents
Carcass ply end joining deviceInfo
- Publication number
- JP3045459B2 JP3045459B2 JP7077283A JP7728395A JP3045459B2 JP 3045459 B2 JP3045459 B2 JP 3045459B2 JP 7077283 A JP7077283 A JP 7077283A JP 7728395 A JP7728395 A JP 7728395A JP 3045459 B2 JP3045459 B2 JP 3045459B2
- Authority
- JP
- Japan
- Prior art keywords
- joining
- carcass ply
- receiving
- small gap
- ply
- 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.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Tyre Moulding (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、成形ドラム上で１周巻
きされるカーカスプライの向合う両端部を、精度良くか
つ強固にしかも自動的に接合しうるカーカスプライの端
部接合装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carcass ply end joining apparatus capable of joining the opposite ends of a carcass ply wound one turn on a forming drum with high accuracy, firmly and automatically.
【０００２】[0002]
【従来の技術】高速走行に優れるタイヤとしてラジアル
構造のものが広く採用されている。しかしながら従来の
ラジアル構造のタイヤでは、タイヤ成形時、成形ドラム
上でカーカスプライを円筒状に巻回しその巻回の両端部
ｅを上下に重合わせて連結（ジョイント）するため、こ
の重なり部ｊは、仕上がりタイヤにおいては、図１４に
示すように、カーカスコードと等しいラジアル方向に帯
状に延在する。その結果、タイヤに空気を充填した際、
タイヤ内面に作用する単位面積当たりの空気圧が均一で
あるにもかかわらず、重なり部ｊにおいてはそれを受持
つカーカスコードの本数が多いため１本当たりの張力が
小さくなり、この重なり部ｊに限り他の部分に比べて凹
む、所謂ジョイントデントが発生し、タイヤ外観、耐久
性、ユニフォミティーなどの品質を大巾に減じていた。
なおジョイントデントは、特にスチールコードのカーカ
スプライを用いたとき、及びカーカスプライの枚数が少
ないタイヤほどより顕著に表われる。2. Description of the Related Art A tire having a radial structure is widely used as a tire excellent in high-speed running. However, in a conventional tire having a radial structure, a carcass ply is wound in a cylindrical shape on a forming drum and both ends e of the winding are vertically overlapped and connected (joint) at the time of forming the tire. As shown in FIG. 14, the finished tire extends in the same radial direction as the carcass cord in a belt shape. As a result, when the tire is filled with air,
Although the air pressure per unit area acting on the inner surface of the tire is uniform, the number of carcass cords in the overlapping portion j is large, so that the tension per wire is small, and only the overlapping portion j is limited. A so-called joint dent, which is recessed as compared with other parts, occurred, and the quality of the tire appearance, durability, uniformity, and the like was greatly reduced.
The joint dent is more remarkable particularly when a steel cord carcass ply is used and in a tire having a smaller number of carcass plies.
【０００３】従って、近年、このようなジョイントデン
トを低減するために、従来の重合わせに代えて、カーカ
スプライ両端部の端面を互いに接合することが提案され
ており、例えば、実開昭６３−１４８４１７号公報は、
図１５に示すように、平面視八字状に傾斜させた一対の
駆動ローラａと、その後方に位置する正面視逆八字状に
傾斜させた一対の寄せローラｂとを用い、これらをカー
カスプライの両端部ｅに沿わせて転動させる装置を開示
している。[0003] Therefore, in recent years, in order to reduce such joint dent, it has been proposed to join the end faces of both end portions of the carcass ply to each other instead of the conventional overlapping. No. 148417,
As shown in FIG. 15, a pair of drive rollers a inclined in an eight-letter shape in plan view and a pair of shift rollers b inclined in an inverted eight-letter shape in front view are provided behind them, and these are used to form a carcass ply. A device for rolling along both ends e is disclosed.
【０００４】[0004]
【発明が解決しようとする課題】しかしながらこのも
は、駆動ローラａが転動する際、プライの各端部ｅを向
合う側に付勢するとはいえ、この駆動ローラａが円筒状
をなすため、ローラａがプライと接する部分ｃとプライ
端縁ｅ１との間に距離ｆが生じるなど付勢力がプライ端
縁ｅ１にまで有効に作用せず、しかもローラ下のプライ
がドラムから浮上がっているため付勢力自体も不安定か
つ小となるなど接合力及び接合精度に劣ることとなる。
又図１５に示すように、前記接する部分ｃにおいてプラ
イが急激に向合う側に付勢されるため、非接触の部分と
の間でコード配列に乱れが発生しやすい。又４つ以上の
ローラａ、ｂの相互の取付けバランスが重要となるな
ど、セッティング時の作業効率にも劣ることとなる。However, when the drive roller a rolls, it biases each end e of the ply to the opposite side, but this drive roller a is cylindrical. The urging force does not effectively act on the ply edge e1 such as the distance f between the portion c where the roller a contacts the ply and the ply edge e1, and the ply under the roller is raised from the drum. Therefore, the urging force itself becomes unstable and small, and the joining force and the joining accuracy are poor.
Further, as shown in FIG. 15, the ply is suddenly urged toward the opposite side at the contacting portion c, so that the cord arrangement is likely to be disturbed with the non-contacting portion. In addition, the work efficiency at the time of setting is inferior, for example, the mutual mounting balance of four or more rollers a and b becomes important.
【０００５】本発明は、カーカスプライの下面を受ける
受体と、２つの円錐状のコマ体を、そのコーン面の最大
径部を互いに近づけかつ１つの母線が前記受体と平行と
なる角度で配した接合具とを用いることを基本として、
カーカスプライの両端部を、高精度かつ高強度で能率良
く接合でき、前記問題点を解決しうるカーカスプライの
端部接合装置の提供を目的としている。According to the present invention, a receiver for receiving a lower surface of a carcass ply and two cone-shaped tops are arranged at an angle such that the largest diameter portions of the cone surfaces are close to each other and one generatrix is parallel to the receiver. Based on using the arranged joints,
It is an object of the present invention to provide a carcass ply end joining device capable of efficiently joining both ends of a carcass ply with high accuracy and strength and solving the above-mentioned problems.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するため
に、本発明のカーカスプライの端部接合装置は、円筒状
の成形ドラム上に巻始めの端部と巻き終りの端部との間
に一定の小間隙を保持して１周巻きされるカーカスプラ
イの前記両端部を接合するカーカスプライの端部接合装
置であって、前記成形ドラムの軸芯方向にのびるレール
を有する案内具と、このレールをその後端位置から前端
位置までの間で前後に移動する走行具とを具える走行手
段、前記走行具に保持されかつ前記小間隙を通る支持片
に、前記成形ドラムに面するカーカスプライの下面で前
記両端部を受ける受け面を有する板状の受片を設けた略
Ｔ字状の受体、及びこの受体の支持片の後側で保持され
るとともに前記走行具の前端位置への移動に際して支持
片が通過した後方で前記両端部を当接させ接合する接合
手段からなるとともに、前記接合手段は、回転軸芯廻り
のコーン面を有する２つのコマ体が、前記コーン面の最
大径部を近づけしかも２つのコマ体の各１つの母線が前
記受け面と平行となる角度で前記回転軸芯を交わらせて
配された接合具を有し、しかも前記２つのコマ体の前記
最大径部の輪部円の中間を通る中間面を前記小間隙がの
びる方向かつ小間隙の中央に位置させたことを特徴とし
ている。In order to achieve the above object, an end joining apparatus for a carcass ply according to the present invention has a structure in which a carcass ply is provided on a cylindrical forming drum between a start end and a finish end. An end joining device for a carcass ply that joins the both ends of a carcass ply wound one round while maintaining a fixed small gap, wherein a guide tool having a rail extending in the axial direction of the forming drum; Running means for moving the rail back and forth from a rear end position to a front end position; and a carcass ply facing the forming drum on a support piece held by the running tool and passing through the small gap. A substantially T-shaped receiver provided with a plate-shaped receiving piece having a receiving surface for receiving the both ends at the lower surface of the support, and a front end position of the traveling tool, which is held at a rear side of a supporting piece of the receiving body. Behind the support piece when moving The joining means comprises a joining means for contacting and joining the two end portions, and the joining means comprises two top bodies having a cone surface around a rotation axis center, which bring the maximum diameter portion of the cone surface close to each other and form two top bodies. Each of the bus bars has a connector arranged so that the rotation axes intersect at an angle parallel to the receiving surface, and passes through the middle of the loop circle of the largest diameter portion of the two frame bodies. The intermediate surface is located in the direction in which the small gap extends and at the center of the small gap.
【０００７】[0007]
【作用】母線が受け面と平行な２つの円錐状のコマ体
は、回転軸廻りでの回転の際、コーン面と受け面との間
でカーカスプライの両端部を挟持しながら、この両端部
を中間面に向かって付勢しかつ押進する。すなわち、こ
のものは両端部の上下面をその全面に亘り挟持している
ため、前記付勢力を端縁に至り確実に作用させることが
でき、端部間の圧接力を安定かつ高めて接合強度及び接
合精度を大巾に向上できる。The two cone-shaped top bodies whose generating lines are parallel to the receiving surface hold both ends of the carcass ply between the cone surface and the receiving surface during rotation about the rotation axis. To the intermediate plane and push it forward. That is, since this material sandwiches the upper and lower surfaces of both ends over the entire surface, the urging force can be applied to the edge to be sure, and the press-contact force between the ends can be stably and increased to increase the bonding strength. And the joining accuracy can be greatly improved.
【０００８】又コマ体とカーカスプライ４との接触形状
が、図１１に示すように、扇状をなすため、中間面に向
かって寄せられるカーカスコードＣ１〜Ｃｎの変位距離
Ｌ１〜Ｌｎは、端部から離れるコードほど小であり、従
って、コマ体と接触する部分と非接触の部分との間のコ
ードの乱れも緩和できる。又２つのコマ体によって接合
できしかも受け面との間でプライを挟持するものである
から構成簡易に安定した付勢力が選られ、従って、セッ
テイング時の作業効率も向上できる。Further, since the contact shape between the top body and the carcass ply 4 is fan-shaped as shown in FIG. 11, the displacement distances L1 to Ln of the carcass cords C1 to Cn brought toward the intermediate plane are equal to the end portions. The smaller the code is, the smaller the code is. Therefore, the disturbance of the code between the portion in contact with the frame and the non-contact portion can be reduced. In addition, since the ply can be joined by the two frames and the ply is sandwiched between the receiving surface, a stable urging force can be selected with a simple structure, and thus the working efficiency at the time of setting can be improved.
【０００９】しかも、受体と接合手段とを、軸芯方向に
移動する走行具に支持させているため、前記接合をプラ
イの全巾に亘り自動で行うことが可能となり、接合作業
能率を大巾に向上できる。In addition, since the receiving member and the joining means are supported by the traveling tool moving in the axial direction, the joining can be automatically performed over the entire width of the ply, and the joining operation efficiency can be increased. Can be improved to width.
【００１０】[0010]
【実施例】以下本願の一実施例を図面に基づき説明す
る。図１、２において、カーカスプライの端部接合装置
１（以下接合装置１という）は、成形ドラム２の軸芯方
向に移動する走行手段３と、この走行手段３に保持され
かつ前記成形ドラム２に１周巻きされるカーカスプライ
４の下面４Ｓを受ける受体５と、円錐状の２つのコマ体
６、６を組合わせた接合手段７とを具える。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2, a carcass ply end joining device 1 (hereinafter, referred to as a joining device 1) includes a traveling unit 3 that moves in the axial direction of a forming drum 2, and a traveling unit And a joining means 7 in which two cone bodies 6 and 6 are combined.
【００１１】なお前記カーカスプライ４は、カーカスコ
ードＣを等ピッチ間隔で互いに平行に巾方向に引き揃え
たコード配列体をトッピングゴムで被覆してなる長尺な
帯体からなり、タイヤ成形時、円筒状の成形ドラム２上
に巻始めの端部Ｅ１と巻き終りの端部Ｅ２との間に一定
の小間隙Ｇを保持して１周巻きされる。なおラジアルタ
イヤでは、カーカスコードＣが成形ドラム２の軸芯方向
に配列するため、前記小間隙Ｇも軸芯方向に沿って形成
する。又成形ドラム２には、タイヤ内腔を気密に保持す
る空気透過性の低いブチル系のインナーライナゴム層Ａ
が予め形成され、従って、本例ではカーカスプライ４
は、インナーライナゴム層Ａを介して成形ドラム２上に
巻装される。The carcass ply 4 is formed of a long strip formed by covering a carcass cord C in parallel with each other at equal pitch intervals in the width direction with a topping rubber. One turn is wound around the cylindrical forming drum 2 while maintaining a small gap G between the end E1 at the start of winding and the end E2 at the end of winding. In the radial tire, since the carcass cords C are arranged in the axial direction of the forming drum 2, the small gap G is also formed along the axial direction. Also, a butyl-based inner liner rubber layer A having low air permeability for keeping the tire cavity airtight is provided on the forming drum 2.
Are formed in advance, and therefore, in this example, the carcass ply 4
Is wound on the forming drum 2 via the inner liner rubber layer A.
【００１２】又接合装置１の前記走行手段３は、レール
９を有する案内具１０と、このレール９を移動する走行
具１１とを具え、該案内具１０及び走行具１１は、例え
ば前記成形ドラム２上を跨るフレーム１２に支持され
る。The running means 3 of the joining apparatus 1 includes a guide 10 having a rail 9 and a run 11 for moving the rail 9. The guide 10 and the run 11 are, for example, formed by the forming drum. 2 is supported by a frame 12 straddling the upper part.
【００１３】なおフレーム１２は、本例では、図３に示
すように、枠材１２Ａを互いに連結してなる矩形枠組を
なし、前記案内具１０は、前記成形ドラム２の軸芯方向
に沿いかつ１つの枠材１２Ａに敷設されるレール９と、
前記走行具１１をこのレール９の後端位置Ｙ１から前端
位置Ｙ２までの間で前後に移動させる駆動器１３とを具
える。In this embodiment, as shown in FIG. 3, the frame 12 forms a rectangular frame formed by connecting frame members 12A to each other, and the guide member 10 extends along the axis of the forming drum 2. A rail 9 laid on one frame member 12A;
And a drive unit 13 for moving the traveling tool 11 back and forth between the rear end position Y1 and the front end position Y2 of the rail 9.
【００１４】前記駆動器１３は、前記枠材１２Ａの両端
で例えば内向きに枢支されたプーリー等の鎖車１５Ａ、
１５Ｂと、この鎖車間に巻装されるタイミングベルト等
の無端連紐１６Ａとを有し、一方の鎖車１５Ａには入切
りクラッチ１７を介して減速電動機等のモータＭ１が接
続するとともに、他方の鎖車１５Ｂには例えばロータリ
エンコーダ等の回転角度測定器１８が連係する。又前記
無端連紐１６Ａの下走行線には前記走行具１１からのび
る突出片１９Ａが固定される。従って、前記駆動器１３
は、モータＭ１による無端連紐１６Ａの周回とともに走
行具１１を前後に移動でき、かつクラッチ１７の切り動
作によって前記後端位置Ｙ１及び前端位置Ｙ２で安定し
て停止するとともに、前記測定器１８によって走行具１
１の現在位置を精度良く検出する。The drive unit 13 includes a chain wheel 15A such as a pulley pivotally supported inward at both ends of the frame member 12A.
15B and an endless continuous cord 16A such as a timing belt wound between the chain wheels. A motor M1 such as a reduction motor is connected to one chain wheel 15A via an on-off clutch 17 and the other wheel 15A. A rotation angle measuring device 18 such as a rotary encoder is linked to the chain wheel 15B. A projecting piece 19A extending from the traveling tool 11 is fixed to a lower traveling line of the endless continuous cord 16A. Therefore, the driving device 13
The traveling tool 11 can be moved back and forth with the rotation of the endless continuous string 16A by the motor M1, and is stably stopped at the rear end position Y1 and the front end position Y2 by the disengagement operation of the clutch 17, and the measuring device 18 Running equipment 1
1 is accurately detected.
【００１５】前記走行具１１は、前記レール９に係合す
る係合溝１４を上端に設けた折曲り板状の走行体１９
と、この走行体１９に昇降具２０を介して前記成形ドラ
ム２の軸芯Ｊに向かって昇降可能に支持される昇降台２
１とを具える。The traveling tool 11 has a bent plate-shaped traveling body 19 having an engagement groove 14 for engaging with the rail 9 at an upper end.
And an elevating table 2 supported on the traveling body 19 via an elevating tool 20 so as to be able to ascend and descend toward the axis J of the forming drum 2.
With 1.
【００１６】なお前記走行体１９は、本例では図２に示
すように、前記係合溝１４を設けた上端部後縁から下方
に折れ曲がる基片１９Ｂを有し、この基片１９Ｂが前記
軸芯Ｊを通る垂直面ＫＯと距離を隔ててのびることによ
って、前記昇降台２１は、前記垂直面Ｋ０に対し２０〜
４０度の角度θで傾斜する傾斜面Ｋ１に沿って移動す
る。このように傾斜角度θを設けることによって、形成
ドラム２上でカーカスプライ４を巻付ける巻付け作業、
及び端部接合の接合作業、確認作業などを成形ドラム２
の側方から容易に行いうる。In this embodiment, as shown in FIG. 2, the traveling body 19 has a base piece 19B bent downward from the rear edge of the upper end provided with the engagement groove 14, and the base piece 19B is connected to the shaft 19B. By extending at a distance from the vertical plane KO passing through the core J, the lift 21 can move the vertical plane K0 by 20 to
It moves along the inclined surface K1 inclined at an angle θ of 40 degrees. By providing the inclination angle θ in this manner, a winding operation of winding the carcass ply 4 on the forming drum 2,
And the joining and checking of the end joint
Can be easily performed from the side.
【００１７】前記昇降具２０は、図４、５に示すよう
に、前記基片１９Ｂの前面部に設ける昇降ガイド２２
と、前記基片１９Ｂの側縁近傍に取付け金具２３を介し
て取付くとともにロッド部を下方に向けた空気式／油圧
式等のシリンダ２５とを具え、又前記昇降台２１は、ブ
ロック状の基台２１Ａ後面部に、前記昇降ガイド２２に
係合して前記傾斜面Ｋ1に沿って案内される係合片２１
Ｂを取付ける。又基台２１Ａ下縁には、前記シリンダ２
５のロッド端が連結する底片２１Ｃが後方に向かって突
設する。又前記基台２１Ａの前面には、軸芯Ｊと直交す
る直角面Ｓ１に対して１１〜１３度の角度で前傾斜する
取付け面２１Ｓが形成され、この取付け面２１Ｓに、受
体５と接合手段７とが支持される。As shown in FIGS. 4 and 5, the lifting device 20 is provided with a lifting guide 22 provided on the front surface of the base piece 19B.
And a cylinder 25 of a pneumatic / hydraulic type or the like, which is mounted near the side edge of the base piece 19B via a mounting bracket 23 and has a rod portion directed downward. An engaging piece 21 which is engaged with the elevating guide 22 and is guided along the inclined surface K1 on the rear surface of the base 21A.
Install B. Also, the cylinder 2 is provided on the lower edge of the base 21A.
A bottom piece 21C to which the rod ends of No. 5 are connected protrudes rearward. On the front surface of the base 21A, there is formed a mounting surface 21S which is inclined forward at an angle of 11 to 13 degrees with respect to a right-angled surface S1 perpendicular to the axis J. The mounting surface 21S is joined to the receiver 5. Means 7 are supported.
【００１８】前記受体５は、図５、６、７に示すよう
に、前記小間隙Ｇを通って上下に伸びる支持片２６の下
端に、板状の受片２７を設けたＴ字状をなし、該受片２
７が前記インナーライナゴム層Ａとカーカスプライ４と
の間に介在することによって、受片２７上面に、カーカ
スプライ４の両端部Ｅ１、Ｅ２をその下面４Ｓで受ける
平滑な受け面２７Ｓを形成する。なお受片２７は、その
後端部分が前記支持片２６から後方に延出する軸芯方向
に縦長の矩形板状をなし、この延出部分Ｚ上に前記接合
手段７を配設する。又受体５は、前記受片２７下面に、
受片２７を前記インナーライナゴム層Ａ上で軸芯方向に
円滑に転動させる小径な転動ローラ２９…を例えば３箇
所形成するとともに、前記支持片２６の両側面には、前
記受け面２７Ｓとの間でカーカスプライ４の各端部Ｅ
１、Ｅ２を案内する案内ローラ３０を設けている。又支
持片２６及び受片２７の各前縁は、前方に向かって先細
状に傾斜し、受体５の前方移動を容易としている。又受
体５は、本例では、プライ挟持用昇降具３２を介して前
記昇降台２１に取付く。As shown in FIGS. 5, 6, and 7, the receiving member 5 has a T-shape in which a plate-shaped receiving piece 27 is provided at a lower end of a supporting piece 26 extending vertically through the small gap G. None, the receiving piece 2
7 is interposed between the inner liner rubber layer A and the carcass ply 4 to form a smooth receiving surface 27S on the upper surface of the receiving piece 27 for receiving both ends E1 and E2 of the carcass ply 4 on the lower surface 4S. . Note that the receiving piece 27 has a rectangular plate shape whose rear end portion extends rearward from the support piece 26 in the axial direction, and the joining means 7 is disposed on the extending portion Z. The receiving body 5 is provided on the lower surface of the receiving piece 27,
For example, three small-diameter rolling rollers 29 for rolling the receiving piece 27 smoothly in the axial direction on the inner liner rubber layer A are formed, and the receiving surfaces 27S are formed on both side surfaces of the supporting piece 26. Between each end E of the carcass ply 4
1, a guide roller 30 for guiding E2 is provided. Further, the front edges of the support piece 26 and the receiving piece 27 are tapered toward the front to facilitate the forward movement of the receiving body 5. In this example, the receiver 5 is attached to the lift table 21 via the ply holding lift 32.
【００１９】前記プライ挟持用昇降具３２は、前記取付
け面２１Ｓに、ブロック状の台座３３を介して支持され
る矩形板状の基片３４を有し、この基片３４前面には軸
芯Ｊに向かってのびるレール部３４Ａが形成される。又
台座３３上端には取付板を介して空気式／油圧式等のシ
リンダ３５が固定され、その伸縮するロッド端には、前
記レール部３４Ａに係合して摺動可能に案内される摺動
片３６が取付く。又摺動片３６には取付部３６Ａが前方
に突出し、この取付部３６Ａに前記受体５の支持片２６
がボルト固定される。なお本例では、前記基片３４に
は、その側面から下方にびるアーム３７下端に、前記延
出部分Ｚにおける受け面２７Ｓと平行に向き合う挟みロ
ーラ３９が配設され、前記シリンダ３５による受体５の
上昇移動によって、受け面２７Ｓと挟みローラ３９との
間でカーカスプライ４の各端部Ｅ１、Ｅ２を挟持してこ
の端部Ｅ１、Ｅ２が後方に設ける接合手段７のコマ体６
にうまく導かれるように案内する。The lifting / lowering device 32 for holding the ply has a rectangular plate-shaped base 34 supported on the mounting surface 21S via a block-shaped pedestal 33, and an axis J on the front surface of the base 34. A rail portion 34A extending toward is formed. A pneumatic / hydraulic type cylinder 35 is fixed to the upper end of the pedestal 33 via a mounting plate, and its extending and contracting rod end is engaged with the rail portion 34A to be slidably guided. The piece 36 is attached. An attachment portion 36A protrudes forward from the sliding piece 36. The support piece 26 of the receiver 5 is attached to the attachment portion 36A.
Is bolted. In this example, the base piece 34 is provided at its lower end with an arm 37 extending downward from the side surface thereof, with a sandwiching roller 39 facing in parallel with the receiving surface 27S of the extending portion Z. 5, the ends E1, E2 of the carcass ply 4 are nipped between the receiving surface 27S and the nipping roller 39, and the ends E1, E2 are provided at the rear.
I will guide you to be well guided.
【００２０】前記接合手段７は、前記走行具１１が前方
移動するに際して、支持片２６を通過する両端部Ｅ１、
Ｅ２を互いに当接させ接合する手段であって、前記挟み
ローラ３９の後側で前記取付け面２１Ｓに支持される接
合具４１を有する。When the traveling tool 11 moves forward, the joining means 7 includes both ends E1, which pass through the support piece 26,
A means for abutting and joining E2 to each other, and has a joining tool 41 supported on the mounting surface 21S at the rear side of the sandwiching roller 39.
【００２１】前記接合具４１は、図５、８、９に示すよ
うに、回転軸芯Ｎの廻りに円錐状のコーン面４３を形成
した２つのコマ体６、６を具え、このコマ体６、６は、
前記コーン面４３の最大径部４３Ａを互いに近づけ、し
かも各コーン面４３の１つの母線４４が前記受け面２７
Ｓと平行に向合う角度、すなわち最下の母線４４が前記
受け面２７Ｓと平行となる角度で前記回転軸芯Ｎを交わ
らせて配している。As shown in FIGS. 5, 8, and 9, the joining tool 41 includes two frame members 6, 6 having a conical cone surface 43 formed around a rotation axis N. , 6
The largest diameter portions 43A of the cone surfaces 43 are brought close to each other, and one bus bar 44 of each cone surface 43 is connected to the receiving surface 27.
The rotation axis N is disposed so as to intersect at an angle facing parallel to S, that is, an angle at which the lowermost generatrix 44 is parallel to the receiving surface 27S.
【００２２】本例では、前記コマ体６は、前記最大径部
４３Ａに、互いに噛合する歯部４５を刻設した歯車であ
って、一方のコマ体６は、図８、９に示すように、前記
取付け面２１Ｓに例えばＬ字状の金具４６を介して固定
されるエアーモータ等のモータＭ２の出力軸に支持され
るとともに、他方のコマ体６は、取付け面２１Ｓ上の例
えばコ字状の金具４７を介して支持される。前記金具４
７は、モータＭ２の出力軸との当接を避ける溝部４７Ａ
を凹設したブロック状をなし、その一端から突出する支
軸４９に可回転に支持される。又前記コマ体６は、図１
０に示すように、前記各最大径部４３Ａの輪部円５０の
中間を通る中間面Ｓ２を前記小間隙Ｇがのびる方向かつ
小間隙Ｇの中央に位置させて配している。In this embodiment, the top body 6 is a gear in which teeth 45 that mesh with each other are cut in the maximum diameter portion 43A. One top body 6 is formed as shown in FIGS. , Is supported on the output shaft of a motor M2 such as an air motor fixed to the mounting surface 21S via, for example, an L-shaped bracket 46, and the other frame body 6 is, for example, U-shaped on the mounting surface 21S. Is supported via the metal fitting 47. The metal fitting 4
7 is a groove 47A for avoiding contact with the output shaft of the motor M2.
Is formed in a block-like shape, and is rotatably supported by a support shaft 49 protruding from one end thereof. The top body 6 is shown in FIG.
As shown in FIG. 0, an intermediate surface S2 passing through the middle of the loop circle 50 of each of the largest diameter portions 43A is arranged in the direction in which the small gap G extends and at the center of the small gap G.
【００２３】従って、各コマ体６は、前記モータＭ２の
駆動によって、回転軸芯Ｎ回りで互いに噛み合って同速
度で回転するとともに、回転の際、コーン面４３と受け
面２７との間で挟持する前記端部Ｅ１、Ｅ２を中間面Ｓ
2に向かって付勢しかつ押進する。このものは端部Ｅ
１、Ｅ２の上下面を全面に亘り挟持しているため、前記
付勢力を端縁に至り確実に作用させることができ端部Ｅ
１、Ｅ２間の圧接力を高めて接合強度を大巾に向上でき
る。Accordingly, each of the frame bodies 6 is engaged with each other around the rotation axis N and rotated at the same speed by the driving of the motor M2, and is held between the cone surface 43 and the receiving surface 27 during rotation. The ends E1 and E2 to the intermediate plane S
Bias and push toward 2. This is end E
1, the upper and lower surfaces of E2 are sandwiched over the entire surface, so that the urging force can be applied to the edge to be surely applied to the edge.
(1) The pressing force between E2 and E2 can be increased to greatly improve the bonding strength.
【００２４】又コマ体６のコーン面４３がカーカスプラ
イ４と接する扇型の接触形状５１を図１１に示すよう
に、中間面Ｓ２に向かって寄せられるカーカスコードＣ
１〜Ｃｎの変位距離Ｌ１〜Ｌｎは、端部Ｅ１、Ｅ２から
離れるコードほど小であり、従って、コマ体６と接触す
る部分と非接触の部分との間のコードの乱れも緩和でき
る。Further, as shown in FIG. 11, the carcass cord C which is moved toward the intermediate surface S2 is formed into a fan-shaped contact shape 51 in which the cone surface 43 of the top body 6 contacts the carcass ply 4.
The displacement distances L1 to Ln of 1 to Cn are smaller as the cords are farther away from the ends E1 and E2, and therefore, the disturbance of the cord between the portion contacting the frame body 6 and the non-contact portion can be reduced.
【００２５】又前記接合具４１は、各回転軸芯Ｎ、Ｎを
含む平面Ｓ３を、前記直角面Ｓ１に対して前傾斜させる
こと、すなわち最大径部４３Ａの接点Ｐが前記母線４４
の後側に位置させることが必要である。これは、前記接
点Ｐの後方側では、コ−ン面４３は中間面Ｓ２から離れ
る側に回転し、その結果、接合された端部Ｅ１、Ｅ２間
を逆に引き離す作用をするからであり、従ってこの接点
Ｐは、前記接触形状５１の後方側に位置させる。Further, the connector 41 is configured such that the plane S3 including the rotation axes N, N is inclined forward with respect to the right-angled plane S1, that is, the contact point P of the maximum diameter portion 43A is
It is necessary to be located behind. This is because, on the rear side of the contact point P, the cone surface 43 rotates away from the intermediate surface S2, and as a result, acts to separate the joined ends E1 and E2 in reverse. Therefore, the contact point P is located on the rear side of the contact shape 51.
【００２６】そして、さらに接合部分におけるカーカス
コードＣの配列の乱れを抑制するためには、前記平面Ｓ
３を、前記直角面Ｓ１に対して１１〜１３度の角度αで
前傾斜させることが好ましい。これは、前記角度αが１
１度未満では、端部Ｅ１、Ｅ２を引き寄せる力が弱く、
接合力を損ねるとともに、図１２に示すように接合面５
２で向き合うコードピッチＨ１が他のコードピッチＨ０
より過大となって、タイヤ側面においてこの部分が凸
る、所謂ジョイントバルジを誘発する。逆に前記角度α
が１３度を越えると、端部Ｅ１、Ｅ２を引き寄せる力が
過大となって、図１３に示すように接合部分においてコ
ードピッチＨ２を他のコードピッチＨ０より小とするコ
ードが６本以上発生しやすく、タイヤ側面においてこの
部分が凹る、所謂ジョイントデントを誘発する。又この
ようなカーカスコードＣの配列の乱れは前記受片２７の
成形ドラムの円周方向の巾Ｗとも関係し、該巾Ｗを３２
〜３８ｍｍとすることによって、前記バルジ・デントの
発生を抑制しうる。なお本例の如く、前記取付け面２１
Ｓを前記角度αに合わせて前傾斜で形成することによっ
て、コマ体６の角度αの設定を容易かつ精度良く行いう
る。Further, in order to further suppress the arrangement of the carcass cords C at the joint portion, the plane S
3 is preferably inclined forward at an angle α of 11 to 13 degrees with respect to the right angle plane S1. This is because the angle α is 1
If it is less than 1 degree, the force for drawing the ends E1 and E2 is weak,
In addition to impairing the joining force, as shown in FIG.
2 is different from the other code pitch H0.
It becomes too large and induces a so-called joint bulge, which is convex on the side of the tire. Conversely, the angle α
Exceeds 13 degrees, the force for drawing the ends E1 and E2 becomes excessively large, and as shown in FIG. 13, six or more cords having the cord pitch H2 smaller than the other cord pitch H0 are generated at the joint portion. This causes a so-called joint dent in which this portion is depressed on the side surface of the tire. Further, such an irregular arrangement of the carcass cords C is also related to the circumferential width W of the receiving piece 27 in the forming drum.
By setting it to be up to 38 mm, the occurrence of the bulge dent can be suppressed. In addition, as in this example, the mounting surface 21
The angle S of the top body 6 can be easily and accurately set by forming S at the forward inclination in accordance with the angle α.
【００２７】又前記接合手段７には、本例では、前記昇
降台２１の底片２１Ｃ側面から下方にのびるアーム片５
３の下端間に架け渡される、ドラム周方向の圧縮バネ５
４が付設され、前記接合具４１によって前記端部Ｅ１、
Ｅ２が接合されたカーカスプライ４を、その張力によて
前記インナーライナゴム層Ａ上に均一に密着する。In the present embodiment, the joining means 7 includes an arm piece 5 extending downward from a side surface of the bottom piece 21C of the lift table 21.
3, a compression spring 5 extending in the circumferential direction of the drum
4 is attached, and the end portion E1,
The carcass ply 4 to which E2 has been joined is uniformly brought into close contact with the inner liner rubber layer A by its tension.
【００２８】然して、予め定寸切したカーカスプライ４
を成形ドラム４上に巻付ける。走行具１１がプライ巾に
対応した後端位置Ｙ１に帰還した後、昇降具２０のシリ
ンダ２５伸長により、受片２７が成形ドラム４に近接す
る位置まで下降させる。この時作業者は、カーカスプラ
イ４の両端部Ｅ１、Ｅ２を受け面２７Ｓと案内ローラ３
０との間に通すとともにその後方の挟みローラ３９の下
に誘導する。又シリンダ３５を作動し受け面２７Ｓと挟
みローラ３９との間で両端部Ｅ１、Ｅ２を挟込む。又走
行手段３による走行具１１の前方移動に際して、前記両
端部Ｅ１、Ｅ２は、モータＭ２に駆動されたコマ体２に
よって噛み込まれて接合される。又接合具４１後方の圧
縮バネ５４が接合部分周辺を下方に押付け、インナーラ
イナゴム層Ａ上に均一に密着させる。走行体１１は、接
合が終了する前端位置Ｙ２まで移動するとシリンダ２５
が戻り、後端位置Ｙ１まで帰還する。However, the carcass ply 4 which has been cut in advance
Is wound on the forming drum 4. After the traveling tool 11 returns to the rear end position Y1 corresponding to the ply width, the elevating tool 20 extends the cylinder 25 to lower the receiving piece 27 to a position close to the forming drum 4. At this time, the worker receives the end surfaces E1 and E2 of the carcass ply 4 and
0 and is guided below the pinching roller 39 at the rear thereof. Further, the cylinder 35 is actuated to sandwich the ends E1 and E2 between the receiving surface 27S and the sandwiching roller 39. Further, when the traveling tool 3 is moved forward by the traveling means 3, the both ends E1 and E2 are bitten and joined by the frame 2 driven by the motor M2. Further, the compression spring 54 at the rear of the joining tool 41 presses the periphery of the joining portion downward to make uniform contact with the inner liner rubber layer A. When the traveling body 11 moves to the front end position Y2 where the joining is completed, the cylinder 25
Returns to the rear end position Y1.
【００２９】[0029]
【発明の効果】本発明のカーカスプライの端部接合装置
は叙上の如く構成しているため、円筒状に巻かれたカー
カスプライの向合う両端部を、精度良くかつ強固にしか
も自動的に突合わせて接合しうる。Since the end joining apparatus for carcass ply of the present invention is constructed as described above, the opposite ends of the carcass ply wound in a cylindrical shape can be accurately, firmly and automatically connected. Butt can be joined.
【図１】本発明の一実施例を示す装置の正面図である。FIG. 1 is a front view of an apparatus showing one embodiment of the present invention.
【図２】その部分側面図である。FIG. 2 is a partial side view thereof.
【図３】案内具を示す斜視図である。FIG. 3 is a perspective view showing a guide.
【図４】走行具を示す斜視図である。FIG. 4 is a perspective view showing a traveling tool.
【図５】走行具を受体及び接合手段とともに示す正面図
である。FIG. 5 is a front view showing the traveling tool together with a receiver and joining means.
【図６】プライ挟持用昇降具を示す斜視図である。FIG. 6 is a perspective view showing a lifting / lowering device for holding a ply.
【図７】受け体を示す斜視図である。FIG. 7 is a perspective view showing a receiving body.
【図８】プライ挟持用昇降具及び接合手段を示す側面図
である。FIG. 8 is a side view showing a lifting and lowering device for holding a ply and a joining means.
【図９】コマ体の取付き状態を示す斜視図である。FIG. 9 is a perspective view showing an attached state of a frame body.
【図１０】コマ体の噛合状態を示す側面図である。FIG. 10 is a side view showing a meshing state of the frame bodies.
【図１１】コマ体のカーカスプライとの接触形状を模式
的に示す略図である。FIG. 11 is a schematic view schematically showing a contact shape of a top body with a carcass ply.
【図１２】カーカスプライの接合状態を示す断面図であ
る。FIG. 12 is a cross-sectional view showing a joined state of a carcass ply.
【図１３】カーカスプライの接合状態を示す断面図であ
る。FIG. 13 is a cross-sectional view showing a joined state of the carcass ply.
【図１４】ジョイントデントを説明するタイヤの斜視図
である。FIG. 14 is a perspective view of a tire illustrating a joint dent.
【図１５】従来技術を説明する略図である。FIG. 15 is a schematic diagram illustrating a conventional technique.
【符号の説明】 ２ 成形ドラム ３ 走行手段 ４ カーカスプライ ５ 受体 ６ コマ体 ７ 接合手段 ９ レール １０ 案内具 １１ 走行具 ２６ 支持片 ２７ 受片 ２７Ｓ 受け面 ４１ 接合具 ４３ コーン面 ４３Ａ 最大径部 ４４ 母線 ５０ 輪部円 Ｅ１、Ｅ２ カーカスプライの端部 Ｇ 小間隙 Ｎ 回転軸芯 Ｓ２ 中間面 Ｙ１ 後端位置 Ｙ２ 前端位置[Description of Signs] 2 Forming drum 3 Running means 4 Carcass ply 5 Receiver 6 Coma body 7 Joining means 9 Rail 10 Guide tool 11 Running tool 26 Supporting piece 27 Receiving piece 27S Receiving surface 41 Joining tool 43 Cone face 43A Largest diameter portion 44 bus bar 50 loop circle E1, E2 end of carcass ply G small gap N axis of rotation S2 intermediate plane Y1 rear end position Y2 front end position
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平１−31628（ＪＰ，Ａ) 特開 昭52−35709（ＪＰ，Ａ) 特開 平６−896（ＪＰ，Ａ) 特開 平７−276530（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B29D 30/30 - 30/16 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-31628 (JP, A) JP-A-52-35709 (JP, A) JP-A-6-896 (JP, A) JP-A-7- 276530 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) B29D 30/30-30/16
Claims (1)
き終りの端部との間に一定の小間隙を保持して１周巻き
されるカーカスプライの前記両端部を接合するカーカス
プライの端部接合装置であって、 前記成形ドラムの軸芯方向にのびるレールを有する案内
具と、このレールをその後端位置から前端位置までの間
で前後に移動する走行具とを具える走行手段、前記走行
具に保持されかつ前記小間隙を通る支持片に、前記成形
ドラムに面するカーカスプライの下面で前記両端部を受
ける受け面を有する板状の受片を設けた略Ｔ字状の受
体、及びこの受体の支持片の後側で保持されるとともに
前記走行具の前端位置への移動に際して支持片が通過し
た後方で前記両端部を当接させ接合する接合手段からな
るとともに、 前記接合手段は、回転軸芯廻りのコーン面を有する２つ
のコマ体が、前記コーン面の最大径部を近づけしかも２
つのコマ体の各１つの母線が前記受け面と平行となる角
度で前記回転軸芯を交わらせて配された接合具を有し、
しかも前記２つのコマ体の前記最大径部の輪部円の中間
を通る中間面を前記小間隙がのびる方向かつ小間隙の中
央に位置させたことを特徴とするカーカスプライの端部
接合装置。1. A carcass for joining both ends of a carcass ply that is wound one round on a cylindrical forming drum while maintaining a small gap between a start end and a end end of the winding. An end joining device for a ply, comprising: a guide having a rail extending in the axial direction of the forming drum; and a traveling tool moving the rail back and forth between a rear end position and a front end position. Means, a substantially T-shaped support piece provided on a support piece held by the traveling tool and passing through the small gap and having a receiving surface for receiving the both ends at the lower surface of the carcass ply facing the forming drum; And a joining means which is held at the rear side of the supporting piece of the receiving body and joins by abutting and joining the both ends behind the supporting piece when the traveling tool moves to the front end position. The joining means is a rotating shaft core Two pieces having a cone-shaped surface of Ri is closer to the maximum diameter of the cone surface addition 2
A connector arranged so that each of the generating lines of each of the top bodies crosses the rotation axis at an angle parallel to the receiving surface;
In addition, an end joining device of a carcass ply, wherein an intermediate surface passing through the middle of the loop circle of the largest diameter portion of the two frame bodies is located in a direction in which the small gap extends and at a center of the small gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7077283A JP3045459B2 (en) | 1995-03-07 | 1995-03-07 | Carcass ply end joining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7077283A JP3045459B2 (en) | 1995-03-07 | 1995-03-07 | Carcass ply end joining device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08238686A JPH08238686A (en) | 1996-09-17 |
| JP3045459B2 true JP3045459B2 (en) | 2000-05-29 |
Family
ID=13629549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7077283A Expired - Lifetime JP3045459B2 (en) | 1995-03-07 | 1995-03-07 | Carcass ply end joining device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3045459B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4668564B2 (en) * | 2004-08-05 | 2011-04-13 | 株式会社ブリヂストン | Joining apparatus and joining method |
| JP4594059B2 (en) * | 2004-12-13 | 2010-12-08 | 住友ゴム工業株式会社 | Cord ply for tire |
| JP4751243B2 (en) * | 2006-06-01 | 2011-08-17 | 住友ゴム工業株式会社 | Cord ply side edge joining device |
| JP5221412B2 (en) | 2009-02-23 | 2013-06-26 | 三菱重工マシナリーテクノロジー株式会社 | Carcass ply joining device |
| WO2012124779A1 (en) * | 2011-03-15 | 2012-09-20 | 株式会社ブリヂストン | Automatic zipper device for sheet member and method for producing sheet product |
| JP5844591B2 (en) * | 2011-09-27 | 2016-01-20 | 株式会社ブリヂストン | Tire component joining apparatus and manufacturing method |
| NL2015094B1 (en) * | 2015-07-06 | 2017-01-31 | Vmi Holland Bv | Apparatus and method for stitching. |
| JP7184602B2 (en) * | 2018-11-08 | 2022-12-06 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Tire member manufacturing apparatus and manufacturing method |
-
1995
- 1995-03-07 JP JP7077283A patent/JP3045459B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08238686A (en) | 1996-09-17 |
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