JPH06286020A - Apparatus for formation of bead core - Google Patents
Apparatus for formation of bead coreInfo
- Publication number
- JPH06286020A JPH06286020A JP5100262A JP10026293A JPH06286020A JP H06286020 A JPH06286020 A JP H06286020A JP 5100262 A JP5100262 A JP 5100262A JP 10026293 A JP10026293 A JP 10026293A JP H06286020 A JPH06286020 A JP H06286020A
- Authority
- JP
- Japan
- Prior art keywords
- former
- shaft
- bead core
- winding
- rotary cylinder
- 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
- 239000011324 bead Substances 0.000 title claims abstract description 50
- 230000015572 biosynthetic process Effects 0.000 title description 2
- 238000004804 winding Methods 0.000 claims abstract description 52
- 230000033001 locomotion Effects 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 230000008602 contraction Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007858 starting material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/48—Bead-rings or bead-cores; Treatment thereof prior to building the tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/48—Bead-rings or bead-cores; Treatment thereof prior to building the tyre
- B29D2030/487—Forming devices for manufacturing the beads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Tyre Moulding (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は内径寸法の異なる複数種
類のビードコアを１つの巻き付けフォーマを用いて容易
に形成でき、しかもその内径の寸法精度の向上にも役立
つビードコア形成装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bead core forming apparatus capable of easily forming a plurality of types of bead cores having different inner diameters by using a single winding former and also improving the dimensional accuracy of the inner diameter.
【０００２】[0002]
【従来の技術】空気入りタイヤＴにおいては、例えば図
９に示すように、リムに装着されるビード部ａにはカー
カスｂの折返し部を係止しかつタイヤ剛性を保持する円
環状のビードコアＣが埋設されており、このビードコア
Ｃは、通常図１０に示すように、ゴム引きしたスチール
製のビードワイヤＷをフォーマｆ上で螺旋に巻き重ねる
ことによって形成される。2. Description of the Related Art In a pneumatic tire T, for example, as shown in FIG. 9, an annular bead core C for locking a folded portion of a carcass b to a bead portion a mounted on a rim and maintaining tire rigidity. This bead core C is normally formed by spirally winding a rubberized steel bead wire W on a former f as shown in FIG.
【０００３】又このようなフォーマｆは、従来、図１１
に示すように、ビードワイヤ巻付け用の凹溝ｍに沿って
左右に分割された円板状の一対のフォーマｆ１、ｆ２か
らなり、かつ各フォーマｆ１、ｆ２を間隔ｇを有して同
心に配した支軸ｈ１、ｈ２を用いて夫々枢支させるとと
もに、一方のフォーマｆ２を軸心に沿ってスライド自在
とすることによって完成したビードコアＣを前記間隔ｇ
から取外し可能としていた。Further, such a former f is conventionally shown in FIG.
As shown in FIG. 2, the pair of formers f1 and f2 in a disk shape is divided into right and left along the groove m for winding the bead wire, and the formers f1 and f2 are concentrically arranged with a gap g. The bead core C completed by making the former f2 slidable along the axis while pivotally supporting each using the above-mentioned supporting shafts h1 and h2.
It was removable from.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら従来のフ
ォーマでは、前記凹溝の外径が一定であるため、内径寸
法の異なる複数種類のビードコアを形成するためには、
各内径に応じたフォーマを準備することが必要となるな
どフォーマの種類が増大し、その管理、保管性を損ねる
とともに、ロット毎のフォーマの交換に時間と手間を要
し生産能率を大巾に低下する。However, in the conventional former, since the outer diameter of the concave groove is constant, in order to form a plurality of types of bead cores having different inner diameter dimensions,
The number of types of formers has increased, such as the need to prepare a former according to each inner diameter, which impairs the management and storability of the formers, and it takes time and labor to replace the formers for each lot, resulting in a significant increase in production efficiency. descend.
【０００５】本発明はフォーマの外周面を拡縮径可能に
形成しかつストッパーによりその拡径量を調整すること
を基本として、一つのフォーマを用いて種々の内径寸法
のビードコアを形成でき前記問題点を解決しうるビード
コア形成装置に関する。The present invention is based on the fact that the outer peripheral surface of the former is formed to be expandable and contractable and the amount of expansion is adjusted by a stopper, and a bead core having various inner diameters can be formed by using one former. The present invention relates to a bead core forming device capable of solving the above problems.
【０００６】[0006]
【課題を解決するための手段】本発明は、凹溝を外周面
に設けた巻き付けフォーマを、フレームで支持されつつ
回転自在な支軸体に配した巻き付けフォーマの前記凹溝
にビードワイヤが巻き付けられることによりタイヤのビ
ードコアを形成するビードコア形成装置であって、前記
支軸体は、この支軸体の軸心と同心な内孔を有する回転
筒と、前記内孔に遊挿されることによって前記軸心方向
に前記回転筒と相対的に前後に進退移動できかつ回転筒
に一体回転可能に係止される中軸とを具え、前記巻き付
けフォーマは、前記軸心を中心として分割される扇形し
かも外周面に前記凹溝を設けた複数の分割セグメントか
らなり、この分割セグメントを回転筒又は中軸の一方に
軸心方向に移動不能かつ軸心と直角な平面内で半径方向
にスライド可能に配するとともに、各分割セグメントに
リンク体の一端を枢着しかつリンク体の他端を回転筒又
は中軸の他方に枢支することにより前記相対的進退移動
により前記リンク体を介して半径方向にスライドさせる
とともに、前記支軸体に、前記相対的移動量を調整しう
るストッパを設けてなるビードコア形成装置である。SUMMARY OF THE INVENTION According to the present invention, a bead wire is wound around a grooved former of a winding former having a groove formed on an outer peripheral surface thereof and arranged on a rotatable shaft while being supported by a frame. A bead core forming device for forming a bead core of a tire, wherein the support shaft has a rotary cylinder having an inner hole concentric with the axis of the support shaft, and the shaft is loosely inserted into the inner hole. The winding former has a sector shape and an outer peripheral surface divided about the shaft center, the center shaft being capable of moving forward and backward relative to the rotating cylinder in the axial direction and being integrally rotatably locked to the rotation cylinder. It is composed of a plurality of divided segments provided with the above-mentioned concave groove, and these divided segments are immovable in the axial direction in one of the rotary cylinder or the center shaft and slidable in the radial direction in a plane perpendicular to the axial center. In addition, one end of the link body is pivotally attached to each of the divided segments and the other end of the link body is pivotally supported on the other of the rotary cylinder or the center shaft, so that the relative advance / retreat movement causes the radial movement through the link body. In addition, the bead core forming device is provided with a stopper capable of adjusting the relative movement amount on the support shaft body.
【０００７】[0007]
【作用】巻き付けフォーマを、その回転の軸心を中心と
して分割される扇形の分割セグメントによって形成する
とともに、この分割セグメントを、中軸もしくは回転筒
のいずれか一方に、軸心と直角な平面内で半径方向にス
ライド可能に配設し、しかも各分割セグメントと中軸も
しくは回転筒のいずれか他方とをリンク体を介して連結
している。The winding former is formed by the fan-shaped divided segments which are divided around the axis of rotation, and the divided segments are provided on either the center shaft or the rotary cylinder in a plane perpendicular to the axis. It is arranged so as to be slidable in the radial direction, and each segment is connected to either the center shaft or the rotary cylinder via the link body.
【０００８】従って中軸と回転筒との間の相対的な軸心
方向の進退移動によって各分割セグメントは半径方向に
等距離スライドし、巻き付けフォーマの外周面を拡縮径
しうる。その結果拡径時に形成されたビードコアを縮径
時にフォーマから容易に取外しうる。Accordingly, the relative movement of the center shaft and the rotary cylinder in the axial direction causes the divided segments to slide in the radial direction by the same distance, so that the outer peripheral surface of the winding former can be expanded / contracted. As a result, the bead core formed at the time of diameter expansion can be easily removed from the former at the time of diameter reduction.
【０００９】しかもストッパによって前記相対的移動量
を調整することによって、前記拡径時のフォーマの外周
面の直径を自在に変化でき１つのフォーマを用いて種々
の内径のビードコアを形成しうる。Further, by adjusting the relative movement amount by the stopper, the diameter of the outer peripheral surface of the former at the time of expanding the diameter can be freely changed, and a bead core having various inner diameters can be formed by using one former.
【００１０】又フォーマの加工バラ付き、装置の組立バ
ラ付き等によって生じるビードコア内径の製品誤差を、
前記ストッパーによる相対的移動量の調整によって、最
終工程の段階で補正でき、製品精度を高めかつ生産能率
を向上するとともに、フォーマの管理、保管能率を改善
しうる。Further, the product error of the inner diameter of the bead core caused by variations in processing of the former, variations in assembly of the device, etc.
By adjusting the relative movement amount by the stopper, correction can be made in the final step, product accuracy can be improved and production efficiency can be improved, and management and storage efficiency of the former can be improved.
【００１１】[0011]
【実施例】以下本発明の一実施例を図面に基づき説明す
る。図において、ビードコア形成装置１は、タイヤＴの
ビードコアＣ形成用のビードワイヤＷが螺旋に巻き重ね
られる凹溝４を外周面に形成した巻き付けフォーマ２
と、この巻き付けフォーマ２が配される回転自在な支軸
体３とを具え、該支軸体３は回転筒５と中軸７とから形
成される。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, a bead core forming apparatus 1 includes a winding former 2 having a groove 4 formed on an outer peripheral surface thereof in which a bead wire W for forming a bead core C of a tire T is spirally wound.
And a rotatably supporting shaft body 3 on which the winding former 2 is arranged. The supporting shaft body 3 is composed of a rotary cylinder 5 and a center shaft 7.
【００１２】前記回転筒５は、一対の側板１５、１５を
立上げた例えば門形のフレーム１３の前記側板１５、１
５に、軸受片１６を介して可回転に支持される基筒１９
を具え、かつこの基筒１９の一端にはフォーマ保持用の
保持体２０が一体固着される。なお基筒１９は、その回
転中心である支軸体３の軸心と同心な内孔６を有し、か
つ例えば軸受片１６、１６間を大径に形成することによ
り、本例では軸心方向にスライド不能に前記フレーム１
３に係止される。又基筒１９は、前記フレーム１３に取
付く電動機Ｍが例えばプーリ１７Ａ、駆動ベルト１７Ｂ
等の駆動伝達手段１７を介して接続され、このことによ
り、ビードコアＣの形成ごとに回転の起動、停止がくり
返される。又基筒１９は、その一端が一方の軸受片１６
から突出してのび、この突出部分に前記保持体２０が取
付く。The rotary cylinder 5 has a pair of side plates 15 and 15, for example, the side plates 15 and 1 of a gate-shaped frame 13 in which they are raised.
5, a base cylinder 19 rotatably supported via a bearing piece 16
A holder 20 for holding the former is integrally fixed to one end of the base cylinder 19. The base cylinder 19 has an inner hole 6 that is concentric with the shaft center of the support shaft body 3 that is the center of rotation, and has a large diameter between the bearing pieces 16, 16, for example. So that it cannot slide in the direction
Locked at 3. In the base cylinder 19, the electric motor M attached to the frame 13 has, for example, a pulley 17A and a drive belt 17B.
Are connected via a drive transmission means 17 such as the above, whereby the start and stop of the rotation are repeated every time the bead core C is formed. Further, the base cylinder 19 has one end with one bearing piece 16
The holder 20 is attached to the protruding portion.
【００１３】前記保持体２０は、前記突出部分にキー等
を用いて一体に固定される基部２０Ａを具え、かつこの
基部２０Ａから半径方向外方かつ前方にのびる胴部前端
には、前記軸心と直角に向くつば状のフランジ部２０Ｂ
を設けている。The holding body 20 has a base portion 20A integrally fixed to the protruding portion by using a key or the like, and the front end of the body portion extending radially outward and forward from the base portion 20A has the axial center. Flange portion 20B with a brim that faces at a right angle to
Is provided.
【００１４】又前記中軸７は、前記内孔６に摺動自在に
遊挿される丸軸状をなし、このことにより回転筒５と相
対的にかつ軸心方向に前後に進退移動しうる。なお前記
基筒１９には軸心方向にのびる長孔１９Ａが透設され、
前記中軸７から突出する係止ピンがこの長孔１９Ａに挿
通することによって、中軸７は回転筒５と一体回転可能
に係止される。なお中軸７として角軸体を用いることに
より前記係止ピンを排除してもよい。The center shaft 7 is in the shape of a round shaft slidably inserted in the inner hole 6 so that it can be moved forward and backward relative to the rotary cylinder 5 and in the axial direction. The base cylinder 19 is provided with an elongated hole 19A extending in the axial direction,
By inserting the locking pin projecting from the center shaft 7 into the elongated hole 19A, the center shaft 7 is locked so as to rotate integrally with the rotary cylinder 5. The locking pin may be eliminated by using a square shaft body as the center shaft 7.
【００１５】又前記中軸７は、その前端部分及び後端部
分が夫々前記基筒１９を前後にこえて延出し、この前端
部分にはリンク体保持用のブラケット２１を固定すると
ともに、後端部分には、該中軸７を前後に付勢する進退
駆動具２２が連結する。The front end portion and the rear end portion of the center shaft 7 extend beyond the base cylinder 19 in the front-rear direction, and a bracket 21 for holding a link body is fixed to the front end portion, and the rear end portion is also fixed. An advancing / retreating drive tool 22 for urging the central shaft 7 back and forth is connected to the.
【００１６】前記進退駆動具２２は、前記フレーム１３
に連設するサブフレーム１３Ａにフランジ止めされかつ
ロッドを前記軸心と同心に配するエアシリンダ２３と、
このエアシリンダ２３のロッド端に取付く例えばボール
ジョイント等の遊動式の継手２４と、この継手に固定さ
れかつ前記中軸７の後端部分に装着されるスラストベア
リング２５とを具える。従って進退駆動具２２は、前記
エアシリンダ２３のロッドの伸縮に伴いスラストベアリ
ング２５を介して中軸７を軸心方向に進退移動させう
る。又進退駆動具２２は、継手２４を設けているため、
ロッドと中軸７との芯ずれを吸収するとともにエアシリ
ンダ２３と中軸７とをスラストベアリング２５を介して
間接的に連結しているため、エアシリンダ２３による中
軸７への負荷を軽減できる。なおスラストベアリング２
５には、そのハウジングから半径方向外方にのびる回転
止め２６が設けられ、該回転止め２６がサブフレーム１
３Ａに突設する係止部１３Ｂと軸心方向に摺動可能に係
合することによって、スラストベアリング２５の回り止
めが行われる。The advancing / retreating drive member 22 is composed of the frame 13
An air cylinder 23, which is flanged to a subframe 13A continuous with the rod and has a rod concentric with the axis,
The air cylinder 23 includes a floating joint 24 such as a ball joint attached to the rod end, and a thrust bearing 25 fixed to the joint and attached to the rear end portion of the center shaft 7. Therefore, the advancing / retreating drive tool 22 can move the center shaft 7 in the axial direction through the thrust bearing 25 as the rod of the air cylinder 23 expands and contracts. Further, since the forward / backward drive tool 22 is provided with the joint 24,
Since the center misalignment between the rod and the center shaft 7 is absorbed and the air cylinder 23 and the center shaft 7 are indirectly connected via the thrust bearing 25, the load on the center shaft 7 by the air cylinder 23 can be reduced. Thrust bearing 2
5 is provided with a detent 26 extending radially outward from the housing, and the detent 26 is attached to the sub-frame 1
The thrust bearing 25 is prevented from rotating by engaging with the locking portion 13B protrudingly provided on 3A so as to be slidable in the axial direction.
【００１７】又前記巻き付けフォーマ２は、図１、２に
示すように、前記軸心と同芯な中心孔を有しかつ外周面
に凹溝４を設けたドーナツ状の円板体を、その軸心を中
心として３〜４コ、本例では４つに等分割してなる扇形
の分割セグメント２７…からなる。又本例では各分割セ
グメント２７は、図２に示すように、半径方向内側に配
されかつ前記回転筒５のフランジ部２０Ｂに保持される
内板片２７Ａと、半径方向外側に配されかつ内板片２７
Ａに取りかえ可能にボルト止めされるとともに外周面に
凹溝４を形成した外板片２７Ｂとを具える。Further, as shown in FIGS. 1 and 2, the winding former 2 is a donut-shaped disc body having a central hole concentric with the shaft center and having a groove 4 on the outer peripheral surface thereof. It is composed of three to four fan-shaped divided segments 27 ... Which are equally divided into four with the axis as the center. Further, in this example, as shown in FIG. 2, each of the divided segments 27 is arranged on the inner side in the radial direction and is arranged on the inner plate piece 27A held on the flange portion 20B of the rotary cylinder 5 and on the outer side in the radial direction. Plate piece 27
The outer plate piece 27B has a groove 4 formed on the outer peripheral surface and is bolted so as to be replaceable with A.
【００１８】又この内板片２７Ａの後面かつその中央に
は、半径方向内方に向かって互いに平行にのびる例えば
２条のレール２９が設けられ、該レール２９は、本例で
は前記フランジ部２０Ｂ前面に設けるガイド３０に案内
される。Further, for example, two rails 29 extending inward in the radial direction are provided on the rear surface of the inner plate piece 27A and in the center thereof. The rails 29 in this example are the flange portions 20B. Guided by a guide 30 provided on the front surface.
【００１９】なおガイド３０は、断面先細状をなす略く
さび形のガイド溝３０Ａを半径方向に向かって互いに平
行に凹設してなり、前記レール２９がガイド溝３０Ａに
不落に係合することにより、各分割セグメント２７は、
軸心方向に移動不能かつ軸心と直角な平面内で半径方向
にスライド可能に保持される。なお前記フランジ部２０
Ｂ側にレール２９を又分割セグメント２７側にガイド３
０を形成してもよく、又レール及びガイドは互いに不落
に係合しうるものであれば周知構造の種々の案内手段が
採用される。The guide 30 has substantially wedge-shaped guide grooves 30A having a tapered cross section, which are recessed in parallel with each other in the radial direction, and the rails 29 are fixedly engaged with the guide grooves 30A. Therefore, each divided segment 27 becomes
It is held so that it cannot move in the axial direction and can slide in the radial direction in a plane perpendicular to the axial center. The flange portion 20
Rail 29 on the B side and guide 3 on the segment 27 side
0 may be formed, and various guide means having a well-known structure may be used as long as the rail and the guide can be fixedly engaged with each other.
【００２０】又各分割セグメント２７には、前記内板片
２７Ａの後面かつ前記レール２９、２９間に、前記軸心
から放射状、すなわち半径方向外方にのびるリンク体１
０の一端が枢着されるとともに、該リンク体１０の他端
は、前記中軸７の前端部分に、前記ブラケット２１を介
して枢支される。従って各分割セグメント２７は、前記
エアーシリング２３が作動することによってなる中軸７
の相対的進退移動によって、前記リンク体１０を介して
半径方向に夫々スライド移動しうるとともに、このスラ
イド移動によって、巻き付けフォーマ２の外周面は拡縮
径する。Further, in each of the divided segments 27, a link body 1 extending radially outward from the axial center, that is, extending outward in the radial direction, between the rails 29 and 29 on the rear surface of the inner plate piece 27A.
One end of 0 is pivotally mounted, and the other end of the link body 10 is pivotally supported by the front end portion of the center shaft 7 via the bracket 21. Therefore, each of the divided segments 27 is formed by the operation of the air silling 23.
By the relative advancing / retreating movement of the winding body 2, the sliding movement can be performed in the radial direction via the link body 10, and by this sliding movement, the outer peripheral surface of the winding former 2 is expanded / contracted.
【００２１】又前記支軸体３には、前記中軸７と回転筒
５との間の相対的移動量を調整することによって、拡径
時の前記巻き付けフォーマ２の外周面の直径を調整する
ストッパ１１が設けられる。A stopper for adjusting the diameter of the outer peripheral surface of the winding former 2 at the time of expanding the diameter of the support shaft body 3 by adjusting the relative movement amount between the center shaft 7 and the rotary cylinder 5. 11 is provided.
【００２２】該ストッパ１１は、本例では、図７に拡大
して示すように、前記中軸７の前端に固定される当り具
５０と、前記回転筒５に取付金具５１を介して固定され
かつ前記当り具５０と当接することにより相対的移動量
を調整しうる受け具５２とを具える。In the present example, the stopper 11 is fixed to the front end of the center shaft 7 and a stopper 50 fixed to the rotary cylinder 5 via a mounting member 51, as shown in an enlarged view in FIG. It is provided with a receiving member 52 capable of adjusting a relative movement amount by abutting against the hitting member 50.
【００２３】前記当り具５０は、本例では図７に示すよ
うに、前記中軸７前端のねじ孔５３に螺着されるととも
に中心ねじ孔５４Ａを同芯に穿設したボルト金具５４
と、このボルト金具５４の前記中心ねじ孔５４Ａに前端
部分を余して螺着されるダンパー５５と、該ダンパー５
５の前記前端部分にねじ着されかつ前記ボルト金具５４
の頭部との間で圧接することによりダブルナット状に前
記ダンパー５５を強固に固定するキャップナット５６と
を具える。In the present embodiment, the hitting tool 50 is screwed into a screw hole 53 at the front end of the center shaft 7 and has a central screw hole 54A concentric with a bolt fitting 54, as shown in FIG.
A damper 55 which is screwed into the central screw hole 54A of the bolt fitting 54 with the front end portion left, and the damper 5
5 is screwed to the front end portion and the bolt fitting 54
And a cap nut 56 for firmly fixing the damper 55 in the shape of a double nut by being pressed against the head of the.
【００２４】又前記ダンパー５５は、本例ではオイルダ
ンパーであって、前記ボルト金具５４及びキャップナッ
ト５６に螺合するねじ部を外周面に設けたシリンダ５５
Ａと、該シリンダ５５の前端を水密に貫通して前後にの
びるとともにシリンダ５５Ａと摺動可能に遊嵌すること
により該シリンダ５５Ａ内部を前室、後室に区分するピ
ストン部５７Ａを後端に設けたロット５７と、前記前
室、後室に封入されるオイルとを具え、該ピストン部５
７Ａには前記前室と後室とを継ぐことによりダンパー効
果を発揮する小径な流路を形成している。なお本例では
例えば後室に、前記ロッド５７復帰用のバネ片５９が収
容される。Further, the damper 55 is an oil damper in this example, and the cylinder 55 is provided with a screw portion on the outer peripheral surface for screwing with the bolt fitting 54 and the cap nut 56.
A and a piston portion 57A that divides the inside of the cylinder 55A into a front chamber and a rear chamber by slidingly fitting the cylinder 55A slidably through the front end of the cylinder 55 and extending back and forth at the rear end. The piston part 5 is provided with the lot 57 provided and the oil enclosed in the front chamber and the rear chamber.
7A is formed with a small-diameter flow path that exerts a damper effect by connecting the front chamber and the rear chamber. In this example, for example, the spring piece 59 for returning the rod 57 is housed in the rear chamber.
【００２５】又受け具５２は、本例では、前記保持体２
０の前面にボルト止めされかつ軸心に沿って前方にのび
る一対の脚片５１Ａ、５１Ａ間を取付片５１Ｂで継ぐ前
記取付金具５１の前記取付片５１Ｂに螺着されるボルト
金具であって、受け具５２は、前記取付片５１Ｂに着脱
自在に取付くねじ軸部５２Ａの後端に、前記キャップナ
ット５６前端の当接面５６Ｓと当接しうる受け部５２Ｂ
を突設している。The receiving member 52 is, in this example, the holding member 2
A bolt fitting which is bolted to the front surface of 0 and extends forward along the axis center between the pair of leg pieces 51A, 51A by a fitting piece 51B. The receiving part 52B that can be brought into contact with the contact surface 56S at the front end of the cap nut 56 at the rear end of the screw shaft part 52A that is detachably attached to the attachment piece 51B.
Is protruding.
【００２６】なお受け具５２は前記ねじ軸部５２Ａ前端
に頭部５２Ｃをする。従って前方に向かって相対的に移
動する中軸７は、前記当接面５６Ｓと受け部５２Ｂとが
当接することによって中軸７の相対的移動量が規制さ
れ、このことにより拡径時の前記巻き付けフォーマ２の
直径が設定される。なお該相対的移動量は、前記受け部
５２Ｂの前記取付片５１Ｂからの突出量Ｇの変化によっ
て自在に調整でき、本例では突出量Ｇを違えた複数種類
の受け具５２を準備し、これらを選択して取付けること
により前記移動量を自在に調整し、種々の直径のビード
コアＣを１つのフォーマを用いて形成する。The receiving member 52 has a head portion 52C at the front end of the screw shaft portion 52A. Therefore, the relative amount of movement of the center shaft 7 that moves relatively toward the front is regulated by the contact between the contact surface 56S and the receiving portion 52B, whereby the winding former at the time of expanding the diameter. A diameter of 2 is set. The relative movement amount can be freely adjusted by changing the protrusion amount G of the receiving portion 52B from the mounting piece 51B. In this example, a plurality of types of receiving tools 52 having different protrusion amounts G are prepared. The amount of movement can be freely adjusted by selecting and attaching, and the bead cores C having various diameters are formed by using one former.
【００２７】なお該突出量Ｇの変化は、例えば前記受け
具５２の螺進退移動によって行うことができ、かかる場
合には受け具５２は図８に示すように、ねじ軸部５２Ａ
を長尺としかつダブルナットを用いて取付片５１Ｂに固
定する。又バネ片５９の付勢により常時は前記当接面５
６Ｓをこえて前方に突出する前記ダンパー５５のロッド
５７は、前記キプナット５６に先がけて受け具５２と当
接することにより、受け具５２との衝撃の緩和が計られ
る。The change in the protrusion amount G can be performed by, for example, moving the receiving member 52 back and forth, and in such a case, the receiving member 52 has a screw shaft portion 52A as shown in FIG.
Is made long and is fixed to the mounting piece 51B using a double nut. Further, the contact surface 5 is always urged by the urging of the spring piece 59.
The rod 57 of the damper 55 protruding forward beyond 6S comes into contact with the receiving tool 52 prior to the Kip nut 56, so that the impact with the receiving tool 52 can be mitigated.
【００２８】又４つの分割セグメント２７のうち、少な
くとも１つの分割セグメント２７に、ビードワイヤＷの
巻始め部Ｗ１を固定するクランプ手段１２が設けられ
る。Further, at least one of the four divided segments 27 is provided with the clamp means 12 for fixing the winding start portion W1 of the bead wire W.
【００２９】クランプ手段１２は、図３、４、５、６に
示すように、分割セグメント２７の外周面を欠切するこ
とにより該外周面が途切れる途切れ部３１と、該途切れ
部３１に配される当片３２とレバー３３とを具える。As shown in FIGS. 3, 4, 5 and 6, the clamping means 12 is disposed on the discontinuous portion 31 and the discontinuous portion 31 where the outer peripheral surface of the divided segment 27 is discontinuous. It includes a contact piece 32 and a lever 33.
【００３０】前記途切れ部３１は、図６に示すように、
前記巻始め部Ｗ１がビードコア形成装置１に供給される
巻き付けフォーマ２の待機・停止状態において、巻き付
けフォーマ２の軸心を通る垂直面Ｓ１と異なる外周面上
の位置から前記垂直面Ｓ１と平行にしかも凹溝４の底面
４Ｓを半径方向内方にこえる深さを有して欠切された略
矩形の切欠部分からなる。As shown in FIG. 6, the discontinuity portion 31 has
When the winding starter W1 is supplied to the bead core forming apparatus 1 and the winding former 2 is in a standby / stop state, the winding starter W1 is parallel to the vertical surface S1 from a position on the outer peripheral surface different from the vertical surface S1 passing through the axis of the winding former 2. Moreover, the groove 4 is formed of a substantially rectangular notch having a depth that exceeds the bottom surface 4S of the groove 4 inward in the radial direction.
【００３１】従って、ビードワイヤＷがフォーマ２の円
周方向と平行に、すなわち軸心と直角な平面と平行な平
面上で供給されるとき、前記途切れ部３１が前記垂直平
面Ｓ１よりも供給の上流側に位置することによって、巻
始め端Ｗ１の端縁は、凹溝底面４Ｓよりも半径方向内方
に位置して途切れ部３１内に挿入される。なお本例で
は、前記待機・停止状態において途切れ部３１の開口部
が上方を向くように欠切され、従ってビードワイヤＷの
供給は、その巻始め端Ｗ１を上方から途切れ部３１内に
落とし込むことにより行われる。Therefore, when the bead wire W is supplied parallel to the circumferential direction of the former 2, that is, on the plane parallel to the plane orthogonal to the axis, the interruption 31 is upstream of the supply from the vertical plane S1. By being located on the side, the end edge of the winding start end W1 is located inward of the groove bottom surface 4S in the radial direction and is inserted into the discontinuity portion 31. In this example, in the standby / stopped state, the opening of the interrupted portion 31 is cut out so as to face upward, and therefore the bead wire W is supplied by dropping the winding start end W1 from above into the interrupted portion 31. Done.
【００３２】又途切れ部３１には、凹溝４内にはみ出す
ことなく当片３２、レバー３３が設けられており、本例
では、前記当片３２とレバー３３とは、一体可搬に組立
てられたクランプユニット１２Ａとして形成される。Further, the discontinuity 31 is provided with a contact piece 32 and a lever 33 without protruding into the concave groove 4. In this example, the contact piece 32 and the lever 33 are integrally assembled to be portable. Formed as a clamp unit 12A.
【００３３】すなわちクランプユニット１２Ａは、前記
当片３２とレバー３３とこれらを支持するケース体３５
とから形成される。That is, the clamp unit 12A includes the contact piece 32, the lever 33, and a case body 35 for supporting them.
Formed from.
【００３４】前記ケース体３５は、途切れ部３１を挟む
側面３１Ｓ、３１Ｓに沿う互いに平行な側板片３５Ａの
前端を前板片３５Ｂで継ぐコ字状をなし、かつ側板片３
５Ａには、前記巻き付けフォーマ２前面にボルト止めさ
れる取付片３５Ｃが前記前板片３５Ｂから後方に控えた
位置で突出している。The case body 35 has a U-shape in which the front ends of the side plate pieces 35A parallel to each other along the side surfaces 31S and 31S sandwiching the discontinuity 31 are joined by the front plate piece 35B, and the side plate piece 3 is formed.
A mounting piece 35C, which is bolted to the front surface of the winding former 2, projects from the front plate piece 35B at a position reserved rearward from the front plate piece 35B.
【００３５】又前記当片３２は、凹溝４を挟む一方の溝
壁、本例では後方の溝壁Ｆ１の側に位置して、前記側板
片３５Ａの上端間に架け渡されるブロック状をなす。又
当片３２は、凹溝底面４Ｓにおける前記溝壁Ｆ１側の溝
底縁Ｅ１と略整一する上縁ｅ１を有しかつ前記軸心と直
角に半径方向巾方にのびる当面３６Ｓを有する下部分３
６を具え、又該下部分３６の上方には、前記上縁ｅ１か
ら溝壁Ｆ１側の溝壁面に沿って半径方向外方にのびる斜
面３７Ｓを有する上部分３７を延設している。The abutting piece 32 is located on the side of one groove wall that sandwiches the concave groove 4, that is, the rear groove wall F1 in this example, and forms a block shape that is bridged between the upper ends of the side plate pieces 35A. . Further, the contact piece 32 has an upper edge e1 that is substantially aligned with the groove bottom edge E1 on the groove wall F1 side in the concave groove bottom surface 4S and has a contact surface 36S that extends in the radial direction at right angles to the axis. Part 3
6, an upper portion 37 having a slope 37S extending radially outward from the upper edge e1 along the groove wall surface on the groove wall F1 side is provided above the lower portion 36.
【００３６】又前記レバー３３は、前記側板片３５Ａ、
３５Ａ間で保持される前記垂直面Ｓ１と直角な支軸３９
の廻りで枢支される枢支部３３Ａと、該枢支部３３Ａか
ら半径方向外方に突出しかつ前記当面３６Ｓに対向する
把持面３３Ｓを有する把持部３３Ｂと、前記枢支部３３
Ａから前記当片３６の下方を通って後方にのびるアーム
部３３Ｃとを有する。従って、レバー３３は、前記支軸
３９の廻りで回動することにより前記把持部３３Ｂ先端
が他方（前方）の溝壁Ｆ２側に位置して把持面３３Ｓが
当面３６Ｓと離間する離間状態Ｙ１から、前記先端が一
方（後方）の溝壁Ｆ１側に位置して把持面３３Ｓが当面
３６Ｓと近接する近接状態Ｙ２までの間を移動しうる。Further, the lever 33 includes the side plate pieces 35A,
A support shaft 39 perpendicular to the vertical surface S1 held between 35A.
A pivotal support 33A pivotally supported around the support 33B, a gripping part 33B having a gripping surface 33S protruding radially outward from the pivotal support 33A and facing the contact surface 36S, and the pivotal support 33
It has an arm portion 33C which extends from A through the lower side of the abutting piece 36 to the rear. Therefore, the lever 33 is rotated around the support shaft 39 so that the tip of the grip portion 33B is located on the other (front) groove wall F2 side, and the grip surface 33S is separated from the contact surface 36S from the separated state Y1. The tip end is located on the one (rear) groove wall F1 side, and the grip surface 33S can move up to the proximity state Y2 in which the grip surface 33S approaches the contact surface 36S.
【００３７】なお前記把持部３３Ｂ先端は、底面４Ｓか
ら半径方向内方に控えて配されており、本例では該先端
は、近接状態Ｙ２において前記底面４Ｓと略整一する円
弧で形成される。The tip of the grip portion 33B is arranged inwardly inward in the radial direction from the bottom surface 4S, and in the present example, the tip is formed in an arc substantially aligned with the bottom surface 4S in the proximity state Y2. .
【００３８】又前記レバー３３のアーム部３３Ｃ端部３
３ｅには、該端部３３ｅを半径方向内方に付勢する付勢
手段４０が連係する。Also, the end portion 3 of the arm portion 33C of the lever 33
A biasing means 40 for biasing the end 33e inward in the radial direction is linked to 3e.
【００３９】すなわち付勢手段４０は、前記フランジ部
２０Ｂの後面にボルト止めされる円筒状のシリンダ４１
と、該シリンダ４１に遊挿されて半径方向内外にスライ
ドするとともに半径方向外端が前記アーム部端部３３ｅ
に枢着されるロッド４２と、前記シリンダ内に装着され
てロッド４２を半径方向内方に付勢するバネ片４３とを
具える。又本例では、前記シリンダ４１に、ロッド４２
内端と当接することによりロッド４２の半径方向内方へ
のスライド終端位置Ｑ１を定める当接片４４が付設され
る。従って、前記内のスライド終端位置Ｑ１において巻
き付けフォーマ２が縮径する時、すなわち支軸３９が半
径方向内方に移動する時、前記ロッド４２はアーム端部
３３ｅを半径方向外方へ突き上げるごとく作用し、支軸
３９を中心とした図において左廻りのモーメントを発生
せしめる。このことによって、把持部３３Ｂ先端が溝壁
Ｆ２側に位置する離間状態Ｙ１に移動しうる。That is, the urging means 40 is a cylindrical cylinder 41 bolted to the rear surface of the flange portion 20B.
And the outer end in the radial direction is loosely inserted in the cylinder 41 and slides in and out in the radial direction, and the arm portion end portion 33e is formed.
And a spring piece 43 mounted in the cylinder for biasing the rod 42 inward in the radial direction. In this example, the cylinder 41 is connected to the rod 42.
An abutting piece 44 is provided which determines the slide end position Q1 of the rod 42 inward in the radial direction by abutting on the inner end. Therefore, when the winding former 2 is reduced in diameter at the inner slide end position Q1, that is, when the support shaft 39 is moved inward in the radial direction, the rod 42 acts like pushing the arm end 33e outward in the radial direction. Then, a counterclockwise moment is generated in the figure centered on the support shaft 39. As a result, the tip of the grip portion 33B can move to the separated state Y1 in which the tip of the grip portion 33B is located on the groove wall F2 side.
【００４０】又この離間状態Ｙ１から巻き付けフォーマ
２が拡径する時、逆に右廻りのモーメントが発生し、把
持部３３Ｂ先端が溝壁Ｆ１側に位置する近接状態Ｙ２に
移動しうる。そして前記拡径がさらに進むと、前記ロッ
ド４２がレバー３３に引きずられて内のスライド終端位
置Ｑ１から半径方向外方にスライド移動し、この時バネ
片４３の付勢力が加わることによって右廻りモーメント
が増大し、把持面３３Ｓと当面３６Ｓとの間で巻始め部
Ｗ１を挟圧して保持しうる。When the winding former 2 is expanded in diameter from the separated state Y1, a clockwise moment is generated conversely, and the tip of the grip portion 33B can move to the close state Y2 located on the groove wall F1 side. When the diameter expansion further proceeds, the rod 42 is dragged by the lever 33 and slides outward from the inner slide end position Q1 in the radial direction. At this time, the urging force of the spring piece 43 is applied to the rod 42, so that the clockwise moment is generated. Is increased, and the winding start portion W1 can be clamped and held between the gripping surface 33S and the contact surface 36S.
【００４１】このようにクランプ手段１２は、前記巻き
付けフォーマ２の拡縮径動作に連動してレバー３３を回
動しうるため、巻き始め部Ｗ１を自動的に固定しうる。
又該固定に先がけレバー３３の把持部３３Ｂが、離間状
態Ｙ１から近接状態Ｙ２まで移動するため、途切れ部３
１内に供給される巻始め部Ｗ１をその供給位置に関係な
く捕獲でき、ワイヤ供給手段の簡易化とクランプの確実
化とを促進しうる。なお前記当接片４４にかえ、巻き付
けフォーマ２の縮径終端近傍においてアーム部３３Ｃ端
部を半径方向外方へ突き上げるごとく、フランジ部２０
Ｂに当接させてもよい。As described above, the clamp means 12 can rotate the lever 33 in conjunction with the expansion / contraction diameter operation of the winding former 2, so that the winding start portion W1 can be automatically fixed.
Further, prior to the fixing, the grip portion 33B of the lever 33 moves from the separated state Y1 to the close state Y2, so that the interrupted portion 3
The winding start portion W1 supplied to the inside of the wire 1 can be captured regardless of the supply position, and the simplification of the wire supply means and the securement of the clamp can be promoted. It should be noted that, instead of the contact piece 44, in the vicinity of the diameter-reducing end of the winding former 2, the end portion of the arm portion 33C is pushed outward in the radial direction, so that the flange portion 20
You may make it contact B.
【００４２】なお本例では、図３、７に示すように、縮
径状態の巻き付けフォーマ２の上方で保持されるビード
ワイヤＷの前記保持を解除し、ビードワイヤＷを途切れ
部３１内に自然落下させることによりその巻き始め部Ｗ
１を巻き付けフォーマ２に供給する。従って、この落と
し込みを確実化するために、本例では前記溝壁Ｆ１の外
端かつ途切れ部３１の両側に該外側から溝壁面に沿って
半径方向外方にのびることにより巻き始め部Ｗ１を途切
れ部３１内に案内する案内面６１Ｓを有する案内片６
１、６１を設けている。In this example, as shown in FIGS. 3 and 7, the above-mentioned holding of the bead wire W held above the winding former 2 in the reduced diameter state is released, and the bead wire W is naturally dropped into the interrupted portion 31. Therefore, the winding start part W
1 is supplied to the winding former 2. Therefore, in order to ensure this drop, in this example, the winding start portion W1 is interrupted by extending radially outward along the groove wall surface from the outside to both the outer end of the groove wall F1 and both sides of the interrupted portion 31. Guide piece 6 having a guide surface 61S for guiding inside the portion 31
1, 61 are provided.
【００４３】又前記取付金具５１には、該取付金具５１
から前記途切れ部３１に向かってのびる外端部が前記ケ
ース体３５の前板片３５Ｂと前記レバー３３との間を通
る案内片６２が取付く。なお該案内片６２の外端部は、
巻き付けフォーマ２の縮径状態において、溝壁Ｆ２の外
端の位置から溝壁面に沿って半径方向外方にのびる案内
面６２Ｓを有し、巻き始め部Ｗ１の落とし込みを案内す
る。又案内片６２の外端部は、拡径状態における巻き付
けフォーマ２の溝底面４Ｓより半径方向内方に控えて位
置し、このことにより完成ビードコアＣの巻き付けフォ
ーマ２からの取外しを容易とする。Further, the mounting bracket 51 has the mounting bracket 51
A guide piece 62 having an outer end portion extending from the cutout portion 31 between the front plate piece 35B of the case body 35 and the lever 33 is attached. The outer end of the guide piece 62 is
In the reduced diameter state of the winding former 2, it has a guide surface 62S extending radially outward from the position of the outer end of the groove wall F2 along the groove wall surface and guides the drop of the winding start portion W1. Further, the outer end portion of the guide piece 62 is positioned so as to be radially inward from the groove bottom surface 4S of the winding former 2 in the expanded diameter state, which facilitates the removal of the completed bead core C from the winding former 2.
【００４４】又図１３にレバー３３の他の実施例を示
す。図においてレバー３３は、枢支部３３Ａを、互いに
平行に配される一対の支軸３９ａ、３９ｂの廻りで夫々
枢支される第１、第２の枢支部３３Ａａ、３３Ａｂで形
成しており、各枢支部３３Ａａ、３３Ａｂは夫々互いに
噛合する歯車体９９を介して連結される。又一方の枢支
部３３Ａａには、把持面３３Ｓを有する把持部３３Ｂ
が、又他方の枢支部３３Ａｂには後方にのびるアーム部
３３Ｃが夫々形成される。従って把持部３３Ｂの傾動動
作を左右違えることができ、拡縮径動作に連動して把持
部３３Ｂ先端が一方の溝壁Ｆ１側に位置する離間状態か
ら他方の溝壁Ｆ２側に位置する近接状態に移動する。FIG. 13 shows another embodiment of the lever 33. In the figure, the lever 33 includes a pivotal support portion 33A formed of first and second pivotal support portions 33Aa and 33Ab pivotally supported around a pair of support shafts 39a and 39b arranged in parallel with each other. The pivot portions 33Aa and 33Ab are connected to each other via gear bodies 99 that mesh with each other. Further, the one pivotal support 33Aa has a gripping portion 33B having a gripping surface 33S.
However, on the other pivotal support 33Ab, rearwardly extending arm portions 33C are respectively formed. Therefore, the tilting motion of the grip portion 33B can be changed to the left or right, and the distal end of the grip portion 33B is moved from the separated state in which the tip of the grip portion 33B is located on the one groove wall F1 side to the close state in which it is located on the other groove wall F2 side in conjunction with the expansion / contraction diameter operation. Moving.
【００４５】又図１２に、本例のビードコア形成装置１
を用いた、ビードコア形成ラインＬを示す。図におい
て、フォーマ２を縮径したビードコア形成装置１の待機
・停止状態において、ゴム付けされたビードワイヤＷ
は、癖付け具７０、フィードローラ７１及び案内具７２
を通って保持具７３によりその巻き始め部Ｗ１が保持さ
れる。しかる後シリンダ７４の伸縮による走行台７５の
走行によって、前記巻き始め部Ｗ１を途切れ部３１上方
まで移動しかつ、保持具７３の解除によって巻き始め部
Ｗ１を途切れ部３１内に供給する。ビードコア形成装置
１は、クランプ手段１２により巻き始め部Ｗ１を固定し
た後、フォーマ２を回転させ、凹溝４にビードワイヤを
巻き付ける。この巻き付け中に、案内具７２が軸心方向
に間欠的に横移動することによって、ビードワイヤＷの
螺旋巻きが形成される。巻き付け終了後、シリンダ７
４、７６の作動によって待機位置で下降する保持具７３
が、ビードワイヤＷをつかみかつカッター７７が切断す
る。Further, FIG. 12 shows a bead core forming apparatus 1 of this example.
3 shows a bead core formation line L using In the figure, the bead wire W attached with a rubber in the standby / stop state of the bead core forming apparatus 1 in which the former 2 is reduced
Is a habit forming tool 70, a feed roller 71, and a guide tool 72.
The winding start portion W1 is held by the holder 73 passing through. Then, the winding platform W1 is moved to a position above the break 31 by the traveling of the traveling table 75 due to the expansion and contraction of the cylinder 74, and the winding start W1 is supplied into the break 31 by releasing the holder 73. In the bead core forming apparatus 1, after fixing the winding start portion W1 by the clamp means 12, the former 2 is rotated and the bead wire is wound around the concave groove 4. During this winding, the guide tool 72 intermittently laterally moves in the axial direction to form a spiral winding of the bead wire W. Cylinder 7 after winding
The holder 73 that descends at the standby position by the operation of Nos. 4 and 76.
However, the bead wire W is grasped and the cutter 77 cuts.
【００４６】ここで、案内具７２、保持具７３、カッタ
ー７７は、前記走行台７５に横移動可能に取り付けられ
る横移動台７８に支持され、かつ案内具７２はシリンダ
７９によって、保持具７３及びカッター７７は前記シリ
ンダ７６によって、下降可能に支持される。Here, the guide tool 72, the holder 73, and the cutter 77 are supported by a lateral moving table 78 that is laterally mounted on the traveling table 75, and the guide tool 72 is held by the cylinder 79 in the holder 73 and the holder 73. The cutter 77 is supported by the cylinder 76 so as to be able to descend.
【００４７】[0047]
【発明の効果】叙上の如く本発明のビードコア形成装置
は構成されるため、巻き付けフォーマの外周面を拡縮径
可能とするとともに、回転筒と中軸との間の相対的移動
量を調整することによって前記拡径時のフォーマ外周面
の直径を自在に変化できる。その結果１つのフォーマを
用いて種々の内径のビードコアを形成でき生産能率、管
理・保管能率を大巾に向上しうるとともに、その内径精
度を高め高品質のビードコアを形成しうる。Since the bead core forming apparatus of the present invention is constructed as described above, the outer peripheral surface of the winding former can be expanded / contracted and the relative movement amount between the rotary cylinder and the center shaft can be adjusted. Thus, the diameter of the outer peripheral surface of the former when the diameter is expanded can be freely changed. As a result, bead cores having various inner diameters can be formed by using one former, and the production efficiency, management and storage efficiency can be greatly improved, and the inner diameter precision can be improved to form high quality bead cores.
【図１】本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】分割セグメントと支軸体との取付状態を示す斜
視図である。FIG. 2 is a perspective view showing a mounting state of a divided segment and a support shaft body.
【図３】クランプ手段を示す斜視図である。FIG. 3 is a perspective view showing a clamp means.
【図４】クランプ手段を示す断面図である。FIG. 4 is a cross-sectional view showing a clamp means.
【図５】クランプユニットを示す斜視図である。FIG. 5 is a perspective view showing a clamp unit.
【図６】途切れ部を説明する断面図である。FIG. 6 is a cross-sectional view illustrating a discontinuous portion.
【図７】ストッパを説明する断面図である。FIG. 7 is a cross-sectional view illustrating a stopper.
【図８】ストッパーの他の実施例を示す断面図である。FIG. 8 is a sectional view showing another embodiment of the stopper.
【図９】タイヤを示す断面図である。FIG. 9 is a cross-sectional view showing a tire.
【図１０】そのビードコアを示す拡大断面図である。FIG. 10 is an enlarged sectional view showing the bead core.
【図１１】従来技術を説明する断面図である。FIG. 11 is a sectional view illustrating a conventional technique.
【図１２】本発明の装置を用いたビードコア形成ライン
の一例を示す略図である。FIG. 12 is a schematic view showing an example of a bead core forming line using the device of the present invention.
【図１３】クランプ手段の他の例を示す断面図である。FIG. 13 is a cross-sectional view showing another example of the clamp means.
２ 巻き付けフォーマ ３ 支軸体 ４ 凹溝 ５ 回転筒 ６ 内孔 ７ 中軸 １０ リンク体 １１ ストッパ １３ フレーム ２７ 分割セグメント Ｃ ビードコア Ｔ タイヤ Ｗ ビードワイヤ 2 Winding former 3 Support shaft body 4 Recessed groove 5 Rotating cylinder 6 Inner hole 7 Middle shaft 10 Link body 11 Stopper 13 Frame 27 Split segment C Bead core T Tire W Bead wire
Claims (1)
を、フレームで支持されつつ回転自在な支軸体に配した
巻き付けフォーマの前記凹溝にビードワイヤが巻き付け
られることによりタイヤのビードコアを形成するビード
コア形成装置であって、前記支軸体は、この支軸体の軸
心と同心な内孔を有する回転筒と、前記内孔に遊挿され
ることによって前記軸心方向に前記回転筒と相対的に前
後に進退移動できかつ回転筒に一体回転可能に係止され
る中軸とを具え、前記巻き付けフォーマは、前記軸心を
中心として分割される扇形しかも外周面に前記凹溝を設
けた複数の分割セグメントからなり、この分割セグメン
トを回転筒又は中軸の一方に軸心方向に移動不能かつ軸
心と直角な平面内で半径方向にスライド可能に配すると
ともに、各分割セグメントにリンク体の一端を枢着しか
つリンク体の他端を回転筒又は中軸の他方に枢支するこ
とにより前記相対的進退移動により前記リンク体を介し
て半径方向にスライドさせるとともに、前記支軸体に、
前記相対的移動量を調整しうるストッパを設けてなるビ
ードコア形成装置。1. A bead core of a tire is formed by winding a bead wire around the grooved former of a winding former having a grooved outer peripheral surface provided on a rotatable spindle while being supported by a frame. In the bead core forming device, the support shaft body includes a rotary cylinder having an inner hole concentric with the shaft center of the support shaft body, and a rotary cylinder that is loosely inserted in the inner hole to face the rotary cylinder in the axial center direction. The winding former has a sector shape divided about the axis and has a plurality of concave grooves formed on the outer peripheral surface thereof. The divided segments are arranged on one of the rotary cylinder or the center shaft so as to be immovable in the axial direction and slidable in the radial direction in a plane perpendicular to the axial center. The one end of the link body is pivotally attached to the front end of the link body and the other end of the link body is pivotally supported to the other of the rotary cylinder or the center shaft so as to slide in the radial direction through the link body by the relative advancing / retreating movement. On the shaft,
A bead core forming device provided with a stopper capable of adjusting the relative movement amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10026293A JP3207603B2 (en) | 1993-04-01 | 1993-04-01 | Bead core forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10026293A JP3207603B2 (en) | 1993-04-01 | 1993-04-01 | Bead core forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06286020A true JPH06286020A (en) | 1994-10-11 |
| JP3207603B2 JP3207603B2 (en) | 2001-09-10 |
Family
ID=14269296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10026293A Expired - Lifetime JP3207603B2 (en) | 1993-04-01 | 1993-04-01 | Bead core forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3207603B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229247A (en) * | 2011-05-04 | 2011-11-02 | 天津赛象科技股份有限公司 | Apex adhering device |
| WO2023165526A1 (en) * | 2022-03-01 | 2023-09-07 | 天津赛象科技股份有限公司 | Rectangular-section bead ring winding device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707538A (en) * | 2013-12-30 | 2014-04-09 | 中国化工橡胶桂林轮胎有限公司 | Preparation method of circular-section steel wire ring for radial tire |
-
1993
- 1993-04-01 JP JP10026293A patent/JP3207603B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229247A (en) * | 2011-05-04 | 2011-11-02 | 天津赛象科技股份有限公司 | Apex adhering device |
| WO2023165526A1 (en) * | 2022-03-01 | 2023-09-07 | 天津赛象科技股份有限公司 | Rectangular-section bead ring winding device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3207603B2 (en) | 2001-09-10 |
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