JPS60178167A - Engaging structure of winding start end of welding wire - Google Patents

Abstract

PURPOSE:To prevent coating of a spool from being damaged by a wire edge in case of winding a welding wire round both-flanged squirrel-cage spool formed by combining a metallic wire rod by suitably bending the forward end of the wire to form a hook portion. CONSTITUTION:A both-flanged squirrel-cage spool comprises spool elements a, b,... formed by bending one metallic wire rod 1, which are arranged in a circle, wherein radial rims of the adjacent spool elements are joined to each other. In case of winding a welding wire W round the both-flanged squirrel-cage spool, the forward end of the wire W is bent toward the winding center like a hook. Thus, an engaging portion is formed by a non-closed loop engaging end with a passing space A for a winding drum forming wire rod 2 left. After the foremost end WP of the wire W is passed through the narrowest portion forming the passing space A, the wire is bent in such a manner as to be extended in direction of keeping apart from the passing space A, so that rust-proof coating can be prevented from being damaged by contact of the edge portion W with the wire rod 2.

Description

【発明の詳細な説明】 本発明は、金属線材を組合わせて形成した両フランジ付
かご形の溶接ワイヤ巻付用スプール（以下°かごスプー
ルと略記する）に巻付けられる溶接ワイヤ（以下ワイヤ
と言う）巻始端の係止構造に関し、詳細には、かごスプ
ールの巻胴にワイヤを容易且つ確実に係止することがで
き、更にはワイヤ切断によシ形成される鋭利な切断エツ
ジによって、ワイヤ係止時或はその後のワイヤ巻付時に
前記巻胴或は巻付ワイヤ自身の外周面に切傷等を与える
ことのない様なワイヤ巻始端の係止構造に関するもので
ある。Detailed Description of the Invention The present invention relates to a welding wire (hereinafter referred to as wire) that is wound around a cage-shaped welding wire winding spool (hereinafter referred to as "cage spool") with both flanges formed by combining metal wire rods. Regarding the locking structure at the winding start end, in detail, it is possible to easily and reliably lock the wire to the winding drum of the car spool, and furthermore, the wire can be easily and reliably locked to the winding drum of the car spool, and the sharp cutting edge formed by cutting the wire The present invention relates to a locking structure for the starting end of a wire winding, which prevents cuts or the like from being caused to the outer circumferential surface of the winding drum or the winding wire itself during locking or subsequent winding of the wire.

かごスプールとは、代表例たる第１図（見取り図）及び
第２図（正面図）に示す如く１本の金属線材（通常は鋼
線材）１を折シ曲げて形成したスプール要素ａ、ｂ）ｃ
＋・・・を複数個円形状に配列し、隣接するスプール要
素の半径方向リム同士を互いに接合して両フランジ付ス
プール状釦形成したもので、安価且つ軽量で十分な強度
を有しており、そのうえ使用後は金属資源としての回収
も容易である等の利点を有していることから、従来の木
製スプールやプラスチック製スプールに代わって利用が
拡大されつつある。尚このスプールは、発錆防止の観点
から表面に防錆被覆が施されている。A cage spool is a spool element (a, b) formed by bending a single metal wire (usually a steel wire) 1, as shown in FIG. 1 (schematic diagram) and FIG. 2 (front view), which are representative examples. c.
+... are arranged in a circular shape, and the radial rims of adjacent spool elements are joined together to form a spool-shaped button with both flanges.It is inexpensive, lightweight, and has sufficient strength. In addition, it has the advantage of being easy to recover as metal resources after use, so its use is expanding in place of conventional wooden spools and plastic spools. The surface of this spool is coated with an anti-rust coating to prevent rust from forming.

ところでかごスプールにワイヤを巻回するに轟たっでは
、ワイヤ巻始端を巻胴部に係止しなければならないが、
ワイヤ巻始端の係止が不完全なままで巻取った場合には
、使用に際してワイヤ巻回残量が少なくなった時点で巻
始端部がはずれ易く、スプリングバック等によって巻付
ワイヤ同士が絡み合って引出し抵抗が増大し、或ははず
れたワイヤ端部が母材に接触してショートを起こす恐れ
もある。従ってワイヤ巻始端はスプールに確実に係止し
ておかなければならない。By the way, in order to wind the wire around the car spool, the starting end of the wire winding must be secured to the winding trunk.
If the winding start end of the wire is wound with incomplete locking, the winding start end will easily come off when the amount of wire winding remaining becomes small during use, and the wound wires will become entangled due to springback, etc. There is also a risk that the pull-out resistance will increase, or that the dislodged wire end may come into contact with the base material and cause a short circuit. Therefore, the starting end of the wire winding must be securely locked onto the spool.

しかるにかとスプールは前述の如く金属線材で形成され
ているので、グラスチック製スプール等で採用されてい
る汎用の係止手段（即ちスプール巻胴部に設けた係止穴
や係止溝にワイヤ巻始端を掛は止める方法等）をそのま
ま転用することはできず、かごスプール特有の構造を配
慮した独自の係止手段を工夫しなければならない。更に
ワイヤの最先端部はナイフやカッター等で切断されたま
まの鋭利なエツジを有しておシ、作業が煩雑であるが故
に該エツジ部のグラインダ処理（研磨処理）等は行なわ
れていないので、係止時に該エツジ部がスプール巻胴に
強く接触すると、該巻胴表面の防錆被覆が裂傷し絶縁性
を失なってショートを起こすという問題があシ、又鋭利
な前記エツジ部がワイヤ自身の外周面に強く接触した場
合は銅めっきが損傷して同様にショートの原因となる。However, since the spool is made of metal wire as mentioned above, it is possible to use the general-purpose locking means used in glass spools (i.e., wire winding in the locking hole or locking groove provided in the spool winding body). It is not possible to use the method of hooking and locking the starting end as is, but it is necessary to devise a unique locking means that takes into account the unique structure of the car spool. Furthermore, the leading edge of the wire has a sharp edge that has been cut with a knife, cutter, etc., and because the work is complicated, the edge is not subjected to grinding treatment (polishing treatment), etc. Therefore, if the edge comes into strong contact with the spool winding drum during locking, there is a problem that the anti-rust coating on the surface of the winding drum will be torn and lose insulation, causing a short circuit. If the wire comes into strong contact with the outer circumferential surface of the wire itself, the copper plating will be damaged and a short circuit will occur as well.

本発明者等はこうした状況のもとで、かごスプールの巻
胴部へ先端を確実に係止させることができ、しかも係止
時或はその後の巻付時に、スプール巻胴部の防錆被覆や
ワイヤ表面の銅めっきを損傷させることのない様なワイ
ヤ巻始端の係止構造を確立しようとして種々研究を進め
てきた。本発明はかかる研究の結果完成されたものであ
って、その構成は、ワイヤの先端を巻付中心方向へ向か
ってフック状に曲げ、かごスプールの巻胴構成線材の通
過隙間を残した非閉鎖ループ状の係止端を形成してなる
ワイヤ巻始端の係止構造であって、ワイヤの最先端は、
前記通過間隙を構成する最小狭隘部を通過して、前記通
過間隙から遠ざかる方向に延在させてなるところに要旨
を有するもので（以下金車 ある。Under these circumstances, the inventors of the present invention have discovered that it is possible to securely lock the tip of the car spool to the winding drum, and that the anti-corrosion coating of the spool winding drum can be applied at the time of locking or subsequent winding. Various studies have been conducted in an effort to establish a locking structure for the starting end of the wire that will not damage the copper plating on the surface of the wire. The present invention was completed as a result of such research, and has a non-closed structure in which the tip of the wire is bent into a hook shape toward the winding center, leaving a gap for the winding drum constituent wire of the car spool to pass through. A locking structure for the starting end of a wire winding formed by forming a loop-shaped locking end, where the leading edge of the wire is
It passes through the smallest narrow part constituting the passage gap and extends in a direction away from the passage gap (hereinafter referred to as a metal wheel).

以下実施例図面に溢って本発明の構成及び作用効果を詳
細に説明するが、図は代表例であって本発明を限定する
性質のものではなく、ワイヤ係止端を構成する非閉鎖状
ループの形状或は巻胴構成、虻には線月通過隙間の間隔
や形状等を変更することは自由であシ、それらはすべて
本発明の技術的乾量に含まれる。The configuration and effects of the present invention will be explained in detail with reference to the drawings, but the drawings are representative examples and do not limit the present invention. It is possible to freely change the shape of the loop, the structure of the winding drum, the spacing and shape of the line passage gap, etc., and all of these are included in the technical quantity of the present invention.

かごスプールの巻胴構成線材にワイヤの先端を係止する
方法としてまず考えられるのは、例えば＃：ｐＪ３，４
図に示す如くワイヤＷの先端部をフック状に曲げて係止
する方法である。即ち第３図は、ワイヤＷの先端を巻胴
構成線材２の内側から巻付ルーズの外周側へ曲げて巻胴
構成線材２に係止させるものであるが、この様な係止法
では、スプリングバック等によシ矢印（イ）方向の力が
作用したとき、係止部が巻胴第１４成線材２から簡単に
外れるという問題がある。しかもワイヤＷの鋭利なエツ
ジ部Ｗｐは巻付はループの外周側に突出する恐れがある
が、そうなると該エツジ部Ｗｐが次層巻回ワイヤＷ２の
表面に強く接触し、銅めっき層に損傷を与えてショート
の原因となる。これに対し第４図は、ワイヤＷの先端を
巻胴中心方向へ曲げてキャストに沿う方向の略３角形状
ループを形成し、該ループの形成に当たってはループ終
了点（ワイヤ最先端のエツジ部）Ｗｐとループ開始点Ｗ
ｓとの間を最狭隘の巻胴構成線材通過間隙Ａとする他、
ループ終了点Ｗｐのループ開始点Ｗｓに対する入線角α
が鋭角となる様に配慮したもので、ワイヤ先端部を簡単
に係止し得ると共に、一旦係止した後は容易に離脱する
ことがない。即ち前記通過間隙Ａを巻胴構成線材２の直
径よシも小さくしておけば、係止時には核線材２を前記
通過間隙Ａの外側からループ内側方向へ押込む（或はワ
イヤＷ全体を図の左方向へ引張る）ことによシ、ワイヤ
Ｗのループ終了辺ｗｂが弾性変形して図の鎖線に示す如
く変位し、それに伴なって前記間隙Ａが拡がって巻胴構
成線材２はループ内へ侵入する。そして該線材２による
押込力から解放されたループ終了層は再び元の状態に復
帰して通過間隙人を狭め、線祠２の離脱を阻止する。こ
の様な係止方法は、本出願人によって既に特許出願され
ており（特願昭５８−５３０１９号）、ワイヤ巻始端止
めの簡便性及びＡＩＡ脱防止性という点では優れたもの
である。The first possible method of locking the tip of the wire to the winding drum constituent wire of the car spool is #: pJ3, 4, for example.
As shown in the figure, this method involves bending the tip of the wire W into a hook shape and locking it. That is, in FIG. 3, the tip of the wire W is bent from the inside of the winding drum constituting wire 2 toward the outer circumferential side of the loose winding to be locked to the winding drum constituting wire 2, but in such a locking method, There is a problem in that when a force in the direction of arrow (A) is applied due to springback or the like, the locking portion easily comes off from the 14th wire rod 2 of the winding drum. Moreover, the sharp edge Wp of the wire W may protrude to the outer circumference of the loop during winding, but in this case, the edge Wp will strongly contact the surface of the next layer wound wire W2, causing damage to the copper plating layer. This may cause a short circuit. On the other hand, in FIG. 4, the tip of the wire W is bent toward the center of the winding drum to form a substantially triangular loop along the cast. ) Wp and loop starting point W
In addition to making the space between s and s the narrowest winding drum component wire passing gap A,
Entrance angle α of loop end point Wp to loop start point Ws
It is designed so that the wire has an acute angle, so that the tip of the wire can be easily locked, and once it is locked, it will not come off easily. That is, if the passage gap A is made smaller than the diameter of the wire rod 2 constituting the winding drum, the core wire 2 is pushed from outside the passage gap A toward the inside of the loop at the time of locking (or the entire wire W is (pulling to the left), the loop end side wb of the wire W is elastically deformed and displaced as shown by the chain line in the figure, and the gap A widens accordingly, and the wire 2 constituting the winding drum is moved inside the loop. to invade. The loop end layer, which is released from the pushing force by the wire rod 2, returns to its original state, narrows the passage gap, and prevents the wire rod 2 from coming off. This locking method has already been patented by the present applicant (Japanese Patent Application No. 58-53019), and is excellent in terms of ease of locking the start end of the wire winding and ability to prevent AIA from coming off.

しかしこの係止法では係止工程で、巻胴構成線材２の外
周面がループ終了点Ｗｐの鋭利なエツジ部にこすられる
様にしてループ内への侵入係止が行なわれる為、該線材
表面の防錆被覆が損傷を受け、巻胴部の絶縁性が低下し
て使用時に１シヨート」を起こす。However, in this locking method, in the locking process, the outer circumferential surface of the wire rod 2 forming the winding drum is rubbed against the sharp edge of the loop end point Wp, and locking is performed by penetrating into the loop. The rust-preventive coating of the drum is damaged, and the insulation of the winding drum is reduced, causing "1 shot" during use.

本発明はこの様な防錆絶縁被覆の損傷による「ショート
（短絡）」という問題を解消することのできるワイヤ巻
始端の係止構造を提供するもので、第５図はその代表例
を示す説明図である。即ち第５図は本発明に係る係止構
造を例示する説明図であシ、基本的には第４図の例と同
様ワイヤＷの先端を巻付中心方向に向かってフック状に
曲げ、巻胴構成線材２の通過間隙人を残した非閉鎖ルー
プ状の係止端によって係止部が構成される。但し本発明
では、ワイヤＷの最先端Ｗｐを、前記通過間隙Ａを構成
する最狭隘部を通過して、該通過間隙Ａから遠ざかる方
向に延在させている。即ち最狭隘部の一方側開口壁Ｈを
構成するワイヤ先端部はワイヤ自身のなだらかな湾曲背
面によって形成し、鋭利なワイヤエツジ部Ｗｐは巻胴構
成線材２に接触しない位置まで退避させている。従って
第４図と同様にして行なわれる係止工程では、なだらか
な湾曲で構成される開口壁Ｈが巻胴構成線材２の外周面
に接触するだけで、該線材２がエツジＩＰｐに接触した
シこすられる恐れは皆無となる。そのの問題を確実に防
止することができる。しかもワイヤ最先端部Ｗｐは、巻
回ワイヤの軸心方向へ退避延在させておシ、巻回ワイヤ
初層部の外周側へ露出することも々いので、第３図で説
明した様な「次層巻ワイヤ表面の銅めっき損傷」という
問題を生ずる余地もない。The present invention provides a locking structure for the starting end of a wire winding that can solve the problem of "short circuit" caused by damage to the rust-proof insulation coating, and FIG. 5 shows a typical example thereof. It is a diagram. That is, FIG. 5 is an explanatory diagram illustrating the locking structure according to the present invention. Basically, the tip of the wire W is bent into a hook shape toward the winding center direction, and the wire W is wound in the same way as the example in FIG. A locking portion is constituted by a locking end of a non-closed loop that leaves a passage gap for the body-constituting wire 2. However, in the present invention, the leading edge Wp of the wire W passes through the narrowest part constituting the passage gap A and extends in a direction away from the passage gap A. That is, the wire tip portion constituting the opening wall H on one side of the narrowest portion is formed by the gently curved back surface of the wire itself, and the sharp wire edge portion Wp is retracted to a position where it does not contact the winding drum constituent wire 2. Therefore, in the locking process performed in the same manner as shown in FIG. There is no fear of being rubbed. This problem can be reliably prevented. Moreover, the leading edge Wp of the wire is often exposed to the outer circumference of the first layer of the wound wire when it is retracted and extended in the axial direction of the wound wire. There is no possibility of causing the problem of "damage to the copper plating on the surface of the next layer winding wire."

この様に本発明では、特に巻胴構成線材２の通過間隙Ａ
を構成する一方側開口壁Ｈを、ワイヤＷ自身のなだらか
な湾曲背面で構成し、エツジ部Ｗｐを前記通過隙間Ａか
ら退避させたところに最大の特徴を有するものであシ、
こうした特徴を具備する限り種々の変形実施が可能であ
る。例えば第６図は、ワイヤ最先端部Ｗｐをループの内
側へ退壁させたもの、第７．８図はループ形状を略真円
状に形成したもの、第９図はループ形状を略方形状に形
成したものを示す。更に第１０図は、第４図で説明した
入線角／ｊを鈍角（９０度超）に形成した例であシ、本
例であれば開口壁■から外側へ延在させた最先端部Ｗｐ
までの部分が巻胴構成線材２の押込ガイドとなシ、巻胴
構成線材２を通過間隙Ａ方向へ案内する機能を果たすの
で、この様な入線角とすることも可能である。更に前述
の例では、何れも巻胴構成線材２の通過間隙人を当初か
ら該線材２の外径よシも狭くしておき、ワイヤＷの弾性
を利用し該間隙Ａを強引に広げて係止させる構造のもの
を示したが、との他、通過間隙人を線利２の外径よりも
広くしたものであってもよく、この場合は線材２を係合
させた後適当な手段でループを外周側から押して通過間
隙人を狭める方向に変形させ、線材２の離脱を防止する
ことも可能である。As described above, in the present invention, in particular, the passage gap A of the wire rod 2 constituting the winding drum is
The biggest feature is that the one-side opening wall H constituting the wire W is formed by the gently curved back surface of the wire W itself, and the edge portion Wp is retracted from the passage gap A,
Various modifications are possible as long as these features are provided. For example, Fig. 6 shows a wire in which the tip end Wp of the wire is retracted to the inside of the loop, Fig. 7.8 shows a loop in which the loop shape is approximately circular, and Fig. 9 shows a loop in which the loop shape is approximately rectangular. The one formed is shown below. Furthermore, FIG. 10 shows an example in which the entrance angle /j explained in FIG. 4 is formed into an obtuse angle (more than 90 degrees).
Since the portion up to this point functions as a push-in guide for the wire rod 2 forming the winding drum and guiding the wire rod 2 forming the winding drum in the direction of the passage gap A, such a wire entry angle is also possible. Furthermore, in the above-mentioned examples, the passage gap of the wire rod 2 constituting the winding drum is made narrower than the outer diameter of the wire rod 2 from the beginning, and the elasticity of the wire W is used to forcibly widen the gap A. In addition to this, the passage gap member may be made wider than the outer diameter of the wire rod 2, and in this case, after the wire rod 2 is engaged, it may be It is also possible to push the loop from the outer circumferential side and deform it in a direction that narrows the passage gap, thereby preventing the wire rod 2 from coming off.

ところで前述の様なワイヤ巻始端部は、手作業によって
形成することも勿論可能であるが、ワイヤ巻取シの全自
動化がほぼ確立している現今において該巻始端部の成形
加工のみを手作業で行なうことは極めて非能率的である
。こうした意味がら該巻始端部の成形加工を自動化し得
る技術も開発すべきであるが、この要請についても一応
の満足を見たので、その−例として前記第５図に示した
様な巻始端係止部の成形例を挙げて簡単に説明を加える
。まず第１１図は、ワイヤ送給ローラ５の回転（及びス
プール自体の回転）にょシ、あるスプールに所定量のワ
イヤＷを巻回し終えた状態を略示するもので、ワイヤ先
端加工装置６は送給ローラ５の前方に設置され、ワイヤ
巻付時には紙面の裏側方向へ退避している。この先端加
工装置６は、装置本体８、第１屈曲部材９及び第２屈曲
部材ｌＯを３個１組として構成されるもので、装置本体
８は第１２図（要部置数り図）に示す如く下端部に係止
用ループ形成用舌状凸部１１、通過間隙Ａ形成用凹部１
２及びワイヤ最先端Ｗｐの退避用凸部１３が形成される
と共に、これらを貫通するワイヤ挿通孔１４が設けられ
、且つ該ワイヤ挿通孔１４内へ側方からワイヤＷを装入
する為のスリット１５が形成されている。又第１屈曲部
材９け、前記舌状凸部１１の図面左側傾斜面１１ａに沿
って斜め方向に進退可能に配置され、第２屈曲部材１０
は通過間隙Ａ形成用凹部１２と噛合する先端形状を有し
、且っ該凹部１２方向へ進退可能に配置されている。こ
の装置を用した巻始端係止部の成形加工は次の様な手段
で行なわれる。即ちあるスプールへの巻付終了時点では
、例えば第１１ν１のＸ紗位置でワイヤＷを切断し、紙
面の裏側へ退避させていた先端加工装置６を進出させ、
ワイヤ挿通孔１４をワイヤＷの走行軌跡と合致させる。By the way, it is of course possible to form the starting end of the wire winding as described above manually, but now that wire winding is almost completely automated, it is now possible to form only the starting end of the winding by hand. It is extremely inefficient to do so. In this sense, it is necessary to develop a technology that can automate the forming process of the winding start end, and since this request has been satisfied to some extent, an example of this is the winding start end shown in Figure 5 above. A brief explanation will be given by giving an example of molding of the locking part. First, FIG. 11 schematically shows the rotation of the wire feed roller 5 (and the rotation of the spool itself) and the state in which a predetermined amount of wire W has been wound around a certain spool, and the wire tip processing device 6 is It is installed in front of the feed roller 5, and is retracted toward the back side of the page when winding the wire. This tip processing device 6 is constructed as a set of three, including a device main body 8, a first bending member 9, and a second bending member IO.The device main body 8 is shown in FIG. As shown, a tongue-like protrusion 11 for forming a locking loop and a recess 1 for forming a passage gap A are provided at the lower end.
2 and a retraction convex portion 13 for the leading edge Wp of the wire, a wire insertion hole 14 passing through these is provided, and a slit for inserting the wire W into the wire insertion hole 14 from the side. 15 is formed. Further, nine first bending members are disposed so as to be movable in an oblique direction along the left inclined surface 11a of the tongue-like convex portion 11 in the figure, and a second bending member 10
has a tip shape that engages with the recess 12 for forming the passage gap A, and is arranged so as to be able to move forward and backward in the direction of the recess 12. The forming process of the winding start end locking part using this device is carried out by the following means. That is, at the end of winding on a certain spool, for example, the wire W is cut at the 11th ν1 X gauze position, and the tip processing device 6, which had been retracted to the back side of the page, is advanced.
The wire insertion hole 14 is made to coincide with the travel locus of the wire W.

次いで送給ローラ５を極く短時間作動させ、第１３図に
示す如くワイヤＷの先端を挿通孔１４の前方−＼一定長
さ突出させる。この突出長さｌは、その後の屈曲加工に
よシ巻始端係止部を形成するループに応じて決められる
。次すで第１４図に示す如く第１屈曲部材９を、舌状凸
部１１０図面左側傾斜面１１ａに治って矢印（ａ）方向
へ進出させ、該屈曲部材９の先端でワイヤＷを押す（こ
の時点でワイヤＷは送給ローラ５によって把持し、後方
への移動を阻止している）ことによシ、ワイヤＷを挿通
孔１４の先端から前記傾斜面１１ａ方向へ屈曲させる。Next, the feed roller 5 is operated for a very short time to cause the tip of the wire W to protrude a certain length in front of the insertion hole 14, as shown in FIG. This protrusion length l is determined according to the loop that will form the winding start end locking portion by the subsequent bending process. Next, as shown in FIG. 14, the first bending member 9 is advanced in the direction of the arrow (a) after touching the left inclined surface 11a of the tongue-like convex portion 110 in the drawing, and pushes the wire W with the tip of the bending member 9 ( At this point, the wire W is gripped by the feeding roller 5 and prevented from moving backward), thereby bending the wire W from the tip of the insertion hole 14 toward the inclined surface 11a.

続いて第２屈曲部材１０を矢印（ｂ）方向へ進出させ、
前記舌状凸部１１の斜め下方へ突き出したワイヤＷを、
通過間隙形成用凹部１２方向へ押す。そして該第２屈曲
部材１０を通過用凹部１２内へ押圧嵌入させると、第１
５図に示す如く、ワイヤＷは舌状凸部１１の先端から前
記間隙成形用凹部１２方向へ曲げられた後、第２屈曲部
材１０の先端部からワイヤ最先端部の退避用凸部１３の
外面に沿って折り返され、第５図に示した様な係止部を
形成することができる。尚成形を終えた後は第１６図に
示す如く第１屈曲部材９及び第２屈曲部材１０を夫々矢
印方向へ退避させ、更に装置本体８を紙面裏方向へ退避
させスリット１５を通して成形ワイヤを成形製［６から
離脱させればよい１１本発明の巻始端係止部は上記の様
な装置及び手順を採用することによって自動的に成形す
ることができるが、成形装置及び成形手順そのものは伺
ら本発明を限定する性質のものではなく、又これらは係
止部の形状や構造等に応じて適宜変更すべきものであり
、図は代表例を示したものにすぎない。Subsequently, the second bending member 10 is advanced in the direction of arrow (b),
The wire W protruding diagonally downward from the tongue-shaped convex portion 11 is
Push in the direction of the passage gap forming recess 12. When the second bending member 10 is press-fitted into the passage recess 12, the first
As shown in FIG. 5, the wire W is bent from the tip of the tongue-shaped convex portion 11 toward the gap forming concave portion 12, and then bent from the tip of the second bending member 10 to the retraction convex portion 13 at the tip of the wire. It can be folded back along the outer surface to form a locking portion as shown in FIG. After completing the forming, as shown in FIG. 16, the first bending member 9 and the second bending member 10 are retracted in the direction of the arrows, and the device main body 8 is further retracted toward the back of the page, and the forming wire is formed through the slit 15. The winding start end locking part of the present invention can be automatically molded by employing the device and procedure described above, but the molding device and the molding procedure themselves are not known. These do not limit the present invention, and should be changed as appropriate depending on the shape and structure of the locking portion, and the figures merely show representative examples.

本発明は以上の様に構成されておシ、かごスプールの巻
胴部への係止を簡単に行なうことができると共に、確実
な係止状態を得ることができ、更には鋭利なエツジ部に
よって巻胴構成線材の表面被覆が損傷を受けたシワイヤ
自身の銅めつき層が損傷する恐れが皆無となり、該損傷
に起因するショートの発生を可及的に防止し得ると共に
、該損傷部を起点として進行する錆の発生が防止されか
ごスプール自体の寿命も大幅に延長し得ることになった
。The present invention is configured as described above, and it is possible to easily lock the car spool to the winding drum, and also to obtain a reliable locking state. There is no risk of damage to the copper plating layer of the shear wire itself, where the surface coating of the wire forming the winding drum has been damaged, and short circuits caused by such damage can be prevented as much as possible, and the damaged part can be used as a starting point. As a result, the occurrence of rust that progresses as a result of this process is prevented, and the life of the car spool itself can be significantly extended.

【図面の簡単な説明】[Brief explanation of drawings]

第１，２図はかとスプールの代表例を示すもので、第１
図は置数シ図、第２図は正面図、第３゜４図はかとスプ
ールの巻胴構成線材に対するワイヤ先端の係止例を示す
説明図、第５〜１０図は本発明に係るワイヤ巻始端の係
止構造を例示する説明図、第′１１〜１６図は該巻始端
係止部の形成例を示す説明図、このうち第１２図は該巻
始端係止部の形成装置を例示する要部置数シ図である。 １・・・スプール構成線材　Ｗ・・・溶接ワイヤＷｐ・
・・ワイヤ最先端部　２・・・巻胴構成線材Ａ・・・巻
胴構成線材通過間隙 Ｈ・・・非閉鎖ループの開口壁 出願人　株式会社神戸製鋼所 第１４図 第１６図 一％続ネ山正−書　（自発） １、！ＩＧ件の表示 昭和５９年特許願第３０９８１号 ２、発明の名称 溶接帯ワイヤ巻始端の係止構造 ３、補正をする者 市外との関係　特許出願人 神戸市中央区脇浜町−丁目３番１８号 （１１９）株式会社　神戸製鋼所 代表者　牧　冬　彦 ４、代理人〒５３０ 大阪市北区堂島２丁目３番７号 シンコービル 明細書の「発明の詳細な説明」の欄及び図面（１）明細
書の所定箇所を別紙正誤表の通り訂正します。 （２）第１１図を別紙第１１図と差替えます。Figures 1 and 2 show typical examples of the heel and spool.
The figure is a numerical diagram, Figure 2 is a front view, Figures 3 and 4 are explanatory diagrams showing an example of how the tip of the wire is locked to the wire rod constituting the winding drum of the heel and spool, and Figures 5 to 10 are wires according to the present invention. An explanatory diagram illustrating a locking structure for the winding start end, Figures 11 to 16 are explanatory diagrams showing examples of forming the winding start end locking part, and of these, Figure 12 illustrates a forming device for the winding start end locking part. It is a diagram showing the number of main parts. 1... Spool constituent wire W... Welding wire Wp.
...Wire leading edge 2...Wire rod constituting the winding drum A...Wire rod forming the winding drum passing gap H...Opening wall of non-closed loop Applicant Kobe Steel, Ltd. Fig. 14 Fig. 16 Fig. 1% continuation Written by Masa Neyama (spontaneous) 1,! Indication of IG Patent Application No. 30981, filed in 1982, 2, Title of the invention: Locking structure for the starting end of welded band wire winding 3, Person making the amendment Relationship with outside the city Patent applicant: 3 Wakihama-cho-chome, Chuo-ku, Kobe City No. 18 (119) Kobe Steel Co., Ltd. Representative: Fuyuhiko Maki 4, Agent: Shinko Building, 2-3-7 Dojima, Kita-ku, Osaka 530 ) The specified parts of the statement will be corrected as shown in the attached errata. (2) Replace Figure 11 with attached Figure 11.

Claims (1)

【特許請求の範囲】[Claims] 金属線材を組合わせて形成した両フランジ付かご形の溶
接ワイヤ巻付用スプールに溶接ワイヤを巻回するに当た
シ、該ワイヤの先端を巻付中心方向へ向かってフック状
に曲げ、前記スプールの巻胴構成線材の通過間隙を残し
た非閉鎖ループ状の係止端を形成してなる溶接ワイヤ巻
始端の係止構造であって、溶接ワイヤの最先端は、前記
通過間隙を構成する最小狭隘部を通過して、前記通過間
隙から遠ざかる方向に延在させてなることを特徴とする
溶接ワイヤ巻始端の係止構造。When winding a welding wire around a basket-shaped welding wire winding spool with both flanges formed by combining metal wires, the tip of the wire is bent into a hook shape toward the center of the winding. A locking structure for a welding wire winding start end formed by forming a locking end in a non-closed loop shape leaving a passage gap for the wire rod constituting the winding drum of the spool, wherein the leading edge of the welding wire forms the passage gap. A locking structure for a starting end of a welding wire winding, characterized in that the structure extends in a direction that passes through the smallest narrow part and moves away from the passage gap.