JP5226716B2

JP5226716B2 - Optical fiber coating removal device

Info

Publication number: JP5226716B2
Application number: JP2010060945A
Authority: JP
Inventors: 拓哉有村; 文男青木; 政一小林; 英明高橋; 慎平野; 康裕手島
Original assignee: Fujitsu Telecom Networks Ltd
Current assignee: Fujitsu Telecom Networks Ltd
Priority date: 2010-03-17
Filing date: 2010-03-17
Publication date: 2013-07-03
Anticipated expiration: 2030-03-17
Also published as: JP2011197083A

Description

本発明は、光ファイバのスプライス接続の際に、光ファイバの二次被覆を除去する光ファイバ被覆除去装置に関する。 The present invention relates to an optical fiber coating removing apparatus that removes a secondary coating of an optical fiber when splicing the optical fiber.

従来、多数の光ファイバを効率的に接続するため、一般に多心スプライス（一括スプライス）を行うが、例えばφ９００μｍとφ２５０μｍといった被覆径の異なる光ファイバを多心スプライスする場合、設備的制約によりφ９００μｍの光ファイバの二次被覆を除去して、一次被覆を長く露出させる必要があった。 Conventionally, in order to efficiently connect a large number of optical fibers, a multi-core splice (batch splice) is generally performed. However, for example, when optical fibers having different coating diameters, such as φ900 μm and φ250 μm, are multi-fiber spliced, It was necessary to remove the secondary coating of the optical fiber to expose the primary coating longer.

しかし、二次被覆は一次被覆に密着し、また、光ファイバは弱い素材であることから、一次被覆やファイバ芯線に損傷を与えずに二次被覆を長い寸法に亘って除去することが大きな課題とされていた。 However, since the secondary coating adheres closely to the primary coating, and the optical fiber is a weak material, it is a major problem to remove the secondary coating over a long dimension without damaging the primary coating or the fiber core wire. It was said.

そして、斯かる課題を解決するため、特許文献１には、小さな除去力で光ファイバの被覆を除去できるようにした被覆除去装置が開示されている。 And in order to solve such a subject, patent document 1 is disclosing the coating removal apparatus which enabled it to remove the coating | coated of an optical fiber with a small removal force.

図２５乃至図２７に示すようにこの被覆除去装置１は、光ファイバ３を保持するファイバホルダ５と、光ファイバ３を把持する相互に開閉可能な上下の把持部７、９を備えた被覆除去部１１とからなり、両把持部７、９には、これらを相互に閉ざした時に光ファイバ３の被覆３ａに食い込む固定刃１３、１５が取り付けられている。 As shown in FIGS. 25 to 27, the coating removing apparatus 1 includes a fiber holder 5 that holds an optical fiber 3 and upper and lower gripping portions 7 and 9 that hold the optical fiber 3 and that can be opened and closed. The fixed blades 13 and 15 which bite into the coating 3a of the optical fiber 3 when they are closed to each other are attached to the grip portions 7 and 9.

更に、両把持部７、９には、可動刃ホルダ１７、１９が光ファイバ３の長手方向に移動可能に設けられている。そして、可動刃ホルダ１７、１９に、同じく上下の把持部７、９を相互に閉ざした時に光ファイバ３の被覆３ａに食い込む可動刃２１、２３が、固定刃１３、１５よりファイバホルダ５側の位置に取り付き、また、両把持部７、９には、光ファイバ３の長手方向への可動刃ホルダ１７、１９の移動を止めるストッパ２５、２７が設けられている。 Furthermore, movable blade holders 17 and 19 are provided on both grips 7 and 9 so as to be movable in the longitudinal direction of the optical fiber 3. The movable blade holders 17 and 19 have movable blades 21 and 23 that bite into the coating 3a of the optical fiber 3 when the upper and lower gripping portions 7 and 9 are closed to each other. The grips 7 and 9 are provided with stoppers 25 and 27 that stop the movement of the movable blade holders 17 and 19 in the longitudinal direction of the optical fiber 3.

そして、上下の可動刃ホルダ１７、１９を固定刃１３、１５側に付勢するスプリング２９が、上下の可動刃ホルダ１７、１９と把持部７、９との間に夫々張架されており、両把持部７、９を閉ざした図２５の状態で被覆除去部１１を矢印方向へ引っ張ると、先ず、固定刃１３、１５が同方向にスライド（このとき、可動刃２１、２３は移動しない）して、固定刃１３、１５より右側の被覆３ａを光ファイバ３から剥離させ右方にずらしていく。この間、同じく被覆３ａに食い込んでいる可動刃２１、２３は、被覆３ａからの抵抗がスプリング２９の反力より大きいためそのまま止まり、スプリング２９が伸びて固定刃１３、１５と可動刃２１、２３との間隔が開いていく。 The springs 29 for urging the upper and lower movable blade holders 17 and 19 toward the fixed blades 13 and 15 are stretched between the upper and lower movable blade holders 17 and 19 and the gripping portions 7 and 9, respectively. When the covering removal part 11 is pulled in the direction of the arrow in the state shown in FIG. 25 with both gripping parts 7 and 9 closed, first, the fixed blades 13 and 15 slide in the same direction (at this time, the movable blades 21 and 23 do not move). Then, the coating 3a on the right side of the fixed blades 13 and 15 is peeled from the optical fiber 3 and shifted to the right. During this time, the movable blades 21 and 23 that are also biting into the coating 3a are stopped because the resistance from the coating 3a is larger than the reaction force of the spring 29, and the spring 29 extends and the fixed blades 13 and 15 and the movable blades 21 and 23 The interval of will open.

このとき、被覆３ａを除去するのに必要な被覆除去力は、被覆３ａの固定刃１３、１５より右側の短い部分を除去するのに必要な力であるため、小さくすむ。 At this time, the coating removal force necessary to remove the coating 3a is a force necessary to remove a short portion on the right side of the fixed blades 13 and 15 of the coating 3a, and therefore, it can be reduced.

斯様に被覆除去部１１を矢印方向に引っ張って、図２６の如く可動刃ホルダ１７、１９がストッパ２５、２７に当たると、各可動刃ホルダ１７、１９に固定されている可動刃２１、２３は、図２６の如く上下の把持部７、９と一体に同方向にスライドして被覆３ａを光ファイバ３から剥離させて右方にずらし、固定刃１３、１５はその右側の被覆３ａをずらせていく。そして、図２７に示すように、被覆３ａの固定刃１３、１５の右側部分が光ファイバ３から完全に除去され、引き続き被覆除去部１１を矢印方向へ移動させると、可動刃２１、２３が被覆３ａの残りの部分を完全に除去するようになっている。 In this way, when the sheath removing portion 11 is pulled in the direction of the arrow and the movable blade holders 17 and 19 come into contact with the stoppers 25 and 27 as shown in FIG. 26, the movable blades 21 and 23 fixed to the movable blade holders 17 and 19 are 26, slides in the same direction integrally with the upper and lower gripping portions 7 and 9, peels the coating 3a from the optical fiber 3 and shifts it to the right, and the fixed blades 13 and 15 shift the coating 3a on the right side. Go. Then, as shown in FIG. 27, when the right portions of the fixed blades 13 and 15 of the coating 3a are completely removed from the optical fiber 3, and the coating removal portion 11 is subsequently moved in the direction of the arrow, the movable blades 21 and 23 are coated. The remaining part of 3a is completely removed.

そして、図２６の状態以後に於ける被覆除去動作では、固定刃１３、１５より右側の被覆３ａを除去するために必要な力は既に小さく、更に可動刃２１、２３が除去する被覆３ａの長さは短く、且つ固定刃１３、１５と可動刃２１、２３との間隔は広がってその間の被覆３ａが圧迫されることがないため、小さな引っ張り力で被覆３ａを除去することが可能となる。 In the covering removal operation after the state shown in FIG. 26, the force required to remove the covering 3a on the right side of the fixed blades 13 and 15 is already small, and the length of the covering 3a removed by the movable blades 21 and 23 is further reduced. The length is short, and the interval between the fixed blades 13 and 15 and the movable blades 21 and 23 is widened so that the covering 3a therebetween is not compressed, so that the covering 3a can be removed with a small pulling force.

特開平１１−６９２０号公報Japanese Patent Laid-Open No. 11-6920

しかし乍ら、前記被覆除去装置は、前記ストッパが被覆除去の要求長さの変化に対応できず、新たにストッパを設けた上下の把持部を製造しなければならない欠点がある。 However, the coating removal apparatus has a drawback in that the stopper cannot cope with a change in the required length of coating removal, and the upper and lower gripping portions newly provided with the stopper must be manufactured.

そして、除去する被覆が長くなると、ストッパの数が増えるために上下の把持部７、９も光ファイバの長手方向に大型化していく不具合が指摘されている。 And when the coating to be removed becomes longer, the number of stoppers increases, and it has been pointed out that the upper and lower grips 7 and 9 are also enlarged in the longitudinal direction of the optical fiber.

本発明は斯かる実情に鑑み案出されたもので、一次被覆、ファイバ芯線に過度な負担を与えることなく二次被覆を長く除去することができると共に、被覆除去長さの調節を容易に行うことのできる光ファイバ被覆除去装置を提供することを目的とする。 The present invention has been devised in view of such circumstances, and it is possible to remove the secondary coating for a long time without imposing an excessive burden on the primary coating and the fiber core, and to easily adjust the coating removal length. An object of the present invention is to provide an optical fiber coating removal apparatus that can perform the above-described process.

斯かる目的を達成するため、請求項１に係る光ファイバ被覆除去装置は、基台上に設置されたガイドレールに沿って移動可能な被覆除去部と、基台上に設置され、前記ガイドレールに沿って前記被覆除去部を移動させるモータと、基台上に設置され、基台上に配置したモジュールから前記被覆除去部へ案内した光ファイバを押さえる押圧固定手段とを備え、前記被覆除去部は、追従手段により前記ガイドレールに沿って順次追従可能に連結された複数の除去台と、前記除去台に、夫々、開閉自在に取り付く除去蓋とからなり、前記除去台は、表面に、前記ガイドレールに沿って光ファイバ挿入溝と、当該光ファイバ挿入溝を挟んで２つのカッター刃操作穴が形成されると共に、内部に、前記光ファイバ挿入溝を挟んで一対のカッター刃と、当該両カッター刃を常時離間させる方向に付勢するバネ部材が装着され、前記除去蓋は、前記カッター刃操作穴に挿入可能な２本の作動ピンが支持部材を介して上下方向に移動可能に取り付き、各除去台の除去蓋を閉じ、前記カッター刃操作穴への作動ピンの挿入操作で、一対のカッター刃が作動ピンにより移動操作されて光ファイバ挿入溝内の光ファイバの二次被覆に切り込みを入れ、前記モータの駆動で、前記ガイドレールに沿って最先端の１個の除去台が移動し、他の複数の除去台が前記追従手段を介して段階的に追従して、切り込みを入れた二次被覆を光ファイバから順次除去していくことを特徴とする。 In order to achieve such an object, an optical fiber coating removing apparatus according to claim 1 includes a coating removing unit that is movable along a guide rail installed on a base, and the guide rail installed on the base. A motor that moves the coating removal unit along the base, and a pressure fixing means that holds the optical fiber that is installed on the base and is guided from the module disposed on the base to the coating removal unit, and the coating removal unit Consists of a plurality of removal bases that are sequentially followable along the guide rail by a follower, and a removal lid that is attached to the removal base so as to be openable and closable. An optical fiber insertion groove is formed along the guide rail, and two cutter blade operation holes are formed across the optical fiber insertion groove, and a pair of cutter blades are disposed inside the optical fiber insertion groove. A spring member that urges the cutter blades in a direction that always separates both cutter blades is mounted, and the removal lid is attached so that two operation pins that can be inserted into the cutter blade operation holes are movable in the vertical direction via a support member. Then, the removal lid of each removal table is closed, and by inserting the operation pin into the cutter blade operation hole, the pair of cutter blades are moved by the operation pin and cut into the secondary coating of the optical fiber in the optical fiber insertion groove. When the motor is driven, one of the most advanced removal bases moves along the guide rail, and the other plurality of removal bases follow the step-by-step through the follow-up means to make a cut. The secondary coating is sequentially removed from the optical fiber.

そして、請求項２に係る発明は、請求項１に記載の光ファイバ被覆除去装置に於て、前記各除去台に取り付く除去蓋は、１本の連結軸にて一体的に連結されると共に、各除去蓋は、当該連結軸に沿って各々が取り付く除去台と一体に移動可能であることを特徴とし、請求項３に係る発明は、請求項１または請求項２に記載の光ファイバ被覆除去装置に於て、一対の前記カッター刃の後部側の上部角部に、前記作動ピンの先端が当接する作動用の傾斜辺が設けられていることを特徴とする。 And the invention which concerns on Claim 2 is the optical fiber coating removal apparatus of Claim 1, While the removal lid | cover which attaches to each said removal stand is integrally connected by one connection axis | shaft, Each of the removal lids is movable along with the removal base attached to each of the removal lids, and the invention according to claim 3 provides the optical fiber coating removal according to claim 1 or claim 2. The apparatus is characterized in that an operating inclined side with which the tip of the operating pin abuts is provided at an upper corner portion on the rear side of the pair of cutter blades.

また、請求項４に係る発明は、請求項１乃至請求項３のいずれか１項に記載の光ファイバ被覆除去装置に於て、前記除去蓋の支持部材に、前記作動ピンの仮保持部が設けられていることを特徴とし、請求項５に係る発明は、請求項１乃至請求項４のいずれか１項に記載の光ファイバ被覆除去装置に於て、前記モータは正逆両方向に回転可能で、前記被覆除去部は当該モータのモータ軸に連結されたボールネジの外周に連結部材を介して連結され、前記モータの駆動で前記ガイドレールに沿って前後動することを特徴とする。 According to a fourth aspect of the present invention, in the optical fiber coating removing apparatus according to any one of the first to third aspects, the temporary holding portion of the operating pin is provided on the support member of the removal lid. According to a fifth aspect of the present invention, in the optical fiber coating removing apparatus according to any one of the first to fourth aspects, the motor is rotatable in both forward and reverse directions. The sheath removing unit is connected to an outer periphery of a ball screw connected to a motor shaft of the motor via a connecting member, and moves back and forth along the guide rail by driving the motor.

更に、請求項６に係る発明は、請求項１乃至請求項５のいずれか１項に記載の光ファイバ被覆除去装置に於て、前記追従手段は、除去台の後部側側面に螺着されたネジ部材と、当該除去台に隣接する他の除去台側に形成され、前記ネジ部材の軸部が挿通するネジ部材挿通穴とからなり、当該ネジ部材挿通穴はネジ部材の軸部より短寸で、ネジ部材のネジ首部が、ネジ部材挿通穴の外側周縁部に係止することを特徴とする。 Furthermore, the invention according to claim 6 is the optical fiber coating removing apparatus according to any one of claims 1 to 5, wherein the following means is screwed to the rear side surface of the removing table. A screw member and a screw member insertion hole formed on the other removal table side adjacent to the removal table and through which the shaft portion of the screw member is inserted. The screw member insertion hole is shorter than the shaft portion of the screw member. The screw neck of the screw member is locked to the outer peripheral edge of the screw member insertion hole.

そして、請求項７に係る発明は、請求項１乃至請求項６のいずれか１項に記載の光ファイバ被覆除去装置に於て、前記押圧手段は、基台上に設置された操作レバーと、当該操作レバーの操作で前後動する押圧ステーと、当該押圧ステーの先端が当接する受部とからなり、前記光ファイバは、ステーの先端と受部の間に挟持、固定されることを特徴とする。 And the invention which concerns on Claim 7 is an optical fiber coating removal apparatus of any one of Claim 1 thru | or 6. WHEREIN: The said press means is an operation lever installed on the base, A pressing stay that moves back and forth by the operation of the operating lever and a receiving portion with which the tip of the pressing stay abuts, and the optical fiber is sandwiched and fixed between the tip of the stay and the receiving portion. To do.

請求項１に係る発明は、光ファイバの二次被覆に切り込みを入れる一対のカッター刃を備えた、所謂ユニット化した除去台と除去蓋を追従手段にて連結し、これらを段階的に追従動させるように構成して、各除去台間のカッター刃のピッチで短く切り込みが入れられた二次被覆を段階的に除去していくように構成したので、二次被覆を除去する際に、一次被覆やファイバ芯線に過度な負荷がかかることがない。 According to the first aspect of the present invention, a so-called unitized removal table and a removal lid, which are provided with a pair of cutter blades for cutting into a secondary coating of an optical fiber, are connected by a tracking means, and these are moved in a stepwise manner. Since the secondary coating that has been cut short with the pitch of the cutter blade between each removal table is gradually removed, the primary coating is removed when removing the secondary coating. An excessive load is not applied to the coating or the fiber core wire.

また、１個の除去台とこれに取り付く１枚の除去蓋はユニット化されて、他の除去台と追従手段を介して簡単に連結／解除が可能であるから、連結する除去台の数を調整することで被覆除去の要求長さの変化に容易に対応することができ、装置が大型化することもない。更に、１ユニットの長さを変化させると、１つのカッター刃にかかる力を変化させられるため、力の調節も可能である。 Also, one removal stand and one removal lid attached to it are unitized and can be easily connected / released via other removal stands and follow-up means. By adjusting, it is possible to easily cope with a change in the required length for removing the coating, and the apparatus is not enlarged. Furthermore, since the force applied to one cutter blade can be changed by changing the length of one unit, the force can be adjusted.

そして、請求項２に係る発明によれば、各除去台に取り付く除去蓋が１本の連結軸によって一体的に連結されると共に、当該連結軸に沿って各除去蓋は各々が取り付く除去台と一体に追従動可能であるから、一度に総ての除去蓋の開閉操作が行え、操作性に優れた利点を有する。 According to the second aspect of the invention, the removal lid attached to each removal table is integrally connected by one connecting shaft, and each removal lid is attached to the removal table along each of the connection shafts. Since it is possible to follow the body integrally, all the removal lids can be opened / closed at once, and the operability is excellent.

また、請求項３に係る発明によれば、一対のカッター刃の後部側の上部角部に、作動ピンの先端が当接する作動用の傾斜辺が設けられているため、作動ピンによるカッター刃の移動操作がスムーズに行えると共に、カッター刃２枚を全く同時に左右から動かせるため、センターのズレが発生せず、光ファイバに左右均等に切り込みを入れられるという効果がある。 Further, according to the invention of claim 3, since the upper inclined portion on the rear side of the pair of cutter blades is provided with the inclined side for operation with which the tip of the operation pin comes into contact, Since the moving operation can be performed smoothly and the two cutter blades can be moved from the left and right at the same time, there is an effect that the center is not displaced and the optical fiber can be equally cut to the left and right.

更に、請求項４に係る発明は、除去蓋の支持部材に仮保持部を設けたため、除去蓋の開閉操作時に作動ピンが上下方向にガタ付くことがなく、支持部材の操作がし易い利点を有する。 Furthermore, the invention according to claim 4 is provided with a temporary holding portion on the support member of the removal lid, so that the operation pin does not rattle up and down when the removal lid is opened and closed, and the support member can be easily operated. Have.

一方、請求項５に係る発明は、正逆両方向に回転可能なモータのモータ軸に連結されたボールネジの外周に被覆除去部を連結部材を介して連結して、当該被覆除去部をモータの駆動でガイドレールに沿って前後動可能としたため、被覆除去部の移動が正確且つスムーズで、精度のよい二次被覆の除去が行える利点を有する。 On the other hand, the invention according to claim 5 is configured such that a sheath removing portion is connected to the outer periphery of a ball screw connected to a motor shaft of a motor rotatable in both forward and reverse directions via a connecting member, and the sheath removing portion is driven by a motor. Thus, since the longitudinal movement is possible along the guide rail, the movement of the covering removal portion is accurate and smooth, and there is an advantage that the secondary covering can be removed with high accuracy.

そして、請求項６に係る発明によれば、追従手段は、ネジ部材とこの軸部が挿通するネジ部材挿通穴からなる簡単な構造であるため、コストがかからず、また、除去台の連結／解除が容易に行える。 According to the invention of claim 6, since the follow-up means has a simple structure comprising a screw member and a screw member insertion hole through which the shaft portion is inserted, there is no cost and the connection of the removal table / Can be easily released.

同様に、請求項７に係る発明によれば、光ファイバを押さえる押圧手段が、基台上に設置された操作レバーと、当該操作レバーの操作で前後動する押圧ステーと、当該押圧ステーの先端が当接する受部とからなる簡単な構造であるため、コストがかからず、また、この押圧手段を用いることで二次被覆の除去をスムーズに行える利点を有する。 Similarly, according to the seventh aspect of the present invention, the pressing means for pressing the optical fiber includes an operating lever installed on the base, a pressing stay that moves back and forth by the operation of the operating lever, and a tip of the pressing stay. Since this is a simple structure consisting of a receiving portion that comes into contact, there is no cost, and there is an advantage that the secondary coating can be removed smoothly by using this pressing means.

請求項乃至請求項７の一実施形態に係る光ファイバ被覆除去装置の作動前の平面図である。It is a top view before the operation | movement of the optical fiber coating removal apparatus which concerns on one Embodiment of Claims thru | or 7. 図１に示す光ファイバ被覆除去装置の側面図である。It is a side view of the optical fiber coating removal apparatus shown in FIG. 図１に示す光ファイバ被覆除去装置の背面図である。It is a rear view of the optical fiber coating removal apparatus shown in FIG. 請求項乃至請求項７の一実施形態に係る光ファイバ被覆除去装置の作動後の平面図である。It is a top view after the action | operation of the optical fiber coating removal apparatus which concerns on one Embodiment of Claims thru | or 7. 図４に示す光ファイバ被覆除去装置の側面図である。It is a side view of the optical fiber coating removal apparatus shown in FIG. 図４に示す光ファイバ被覆除去装置の背面図である。It is a rear view of the optical fiber coating removal apparatus shown in FIG. ガイドレールに取り付く被覆除去部の部分側面図である。It is a partial side view of the coating | coated removal part attached to a guide rail. ガイドレールに取り付く被覆除去部の断面図である。It is sectional drawing of the coating | coated removal part attached to a guide rail. 図８のＡ部拡大図である。It is the A section enlarged view of FIG. 除去蓋を開いた被覆除去部の部分平面図である。It is a partial top view of the coating | coated removal part which opened the removal cover. 除去蓋を閉じた被覆除去部の部分平面図である。It is a partial top view of the coating | coated removal part which closed the removal lid | cover. 図１０のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 図１１のＢ−Ｂ線断面図である。It is the BB sectional drawing of FIG. 除去蓋を開いた被覆除去部の部分断面図である。It is a fragmentary sectional view of the coating removal part which opened the removal cover. 除去蓋を閉じた被覆除去部の部分断面図である。It is a fragmentary sectional view of the coating removal part which closed the removal lid. 除去台の平面図である。It is a top view of a removal stand. 除去台本体の背面図である。It is a rear view of a removal stand main body. 追従手段で追従した状態にある除去台の平面図である。It is a top view of the removal stand in the state which followed the tracking means. 作動ピンとカッターの動きを説明する説明図である。It is explanatory drawing explaining a motion of an action | operation pin and a cutter. 図１９(b)のＡ部拡大図である。It is the A section enlarged view of FIG.19 (b). 図１９(d)のＢ部拡大図である。It is the B section enlarged view of FIG.19 (d). 作動ピンの動きを説明する説明図である。It is explanatory drawing explaining a motion of an action | operation pin. 押圧手段の側面図である。It is a side view of a press means. 押圧手段の平面図である。It is a top view of a press means. 被覆を除去する初期段階に於ける従来の被覆除去装置の断面図である。It is sectional drawing of the conventional coating removal apparatus in the initial stage which removes coating. 図２５に続く次の段階の被覆除去装置の断面図である。It is sectional drawing of the coating removal apparatus of the next step following FIG. 図２６に続く次の段階の被覆除去装置の断面図である。It is sectional drawing of the coating removal apparatus of the next step following FIG.

以下、本発明の実施形態を図面に基づいて詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１乃至図６は請求項１乃至請求項７の一実施形態に係る光ファイバ被覆除去装置を示し、図中、３１は光ファイバ被覆除去装置３３を搭載した基台で、光ファイバ被覆除去装置３３は、基台３１上に設置したガイドレール３５と、当該ガイドレール３５に沿って前後動可能な被覆除去部３７と、ガイドレール３５に沿って被覆除去部３７を前後動させるモータ３９と、基台３１上に配置したモジュール４１から被覆除去部３７へ案内した１本の光ファイバ４３を押さえる押圧手段４５を備えている。尚、光ファイバ４３の被覆径はφ９００μｍである。 FIGS. 1 to 6 show an optical fiber coating removal apparatus according to an embodiment of claims 1 to 7, in which reference numeral 31 denotes a base on which an optical fiber coating removal apparatus 33 is mounted. 33, a guide rail 35 installed on the base 31, a sheath removing portion 37 movable back and forth along the guide rail 35, a motor 39 moving the sheath removing portion 37 back and forth along the guide rail 35, A pressing means 45 is provided for pressing one optical fiber 43 guided from the module 41 arranged on the base 31 to the coating removing unit 37. The coating diameter of the optical fiber 43 is φ900 μm.

前記モータ３９は正逆両方向に回転可能で、モータ軸４７にはカップリング４９を介して１本のボールネジ５１が同軸上に連結されており、図１及び図２に示すようにボールネジ５１は、ガイドレール３５に沿って前後のサポートユニット（軸受）５３に回転可能に支持されている。そして、ボールネジ４７の外周に連結ブラケット（連結部材）５５が螺合している。 The motor 39 is rotatable in both forward and reverse directions, and a single ball screw 51 is coaxially connected to the motor shaft 47 via a coupling 49. As shown in FIGS. Along with the guide rail 35, the front and rear support units (bearings) 53 are rotatably supported. A connection bracket (connection member) 55 is screwed onto the outer periphery of the ball screw 47.

図１に示すように連結ブラケット５５は、ボールネジ５１の外周に螺合した筒状部５７と、当該筒状部５７の一端側（モータ３９側）に連設されたプレート部５９とからなり、プレート部５９にボールネジ５１が挿通している。そして、前記プレート部５９と、これに並設されたプレート状の連結ブラケット（連結部材）６１との間にロードセル（荷重検知器）６３が装着され、連結ブラケット６１に被覆除去部３７が連結されている。 As shown in FIG. 1, the connecting bracket 55 includes a cylindrical portion 57 that is screwed onto the outer periphery of the ball screw 51, and a plate portion 59 that is connected to one end side (motor 39 side) of the cylindrical portion 57. A ball screw 51 is inserted through the plate portion 59. A load cell (load detector) 63 is mounted between the plate portion 59 and a plate-like connecting bracket (connecting member) 61 arranged in parallel therewith, and the coating removing portion 37 is connected to the connecting bracket 61. ing.

そして、モータ３９が正回転してボールネジ５１が同方向に回転すると、これに螺合した連結ブラケット５５を介してロードセル６３、連結ブラケット６１が矢印Ａ方向へ移動するため、連結ブラケット６１に連結された被覆除去部３７がガイドレール３５に沿って同方向へ移動するようになっている。 When the motor 39 rotates in the forward direction and the ball screw 51 rotates in the same direction, the load cell 63 and the connection bracket 61 move in the direction of arrow A via the connection bracket 55 screwed to the motor 39, so that they are connected to the connection bracket 61. Further, the covering removal portion 37 moves in the same direction along the guide rail 35.

また、図４及び図５に示すように被覆除去部３７が矢印Ａ方向へ移動した後、モータ３９を逆回転させると、ボールネジ５１が同方向に回転するため、被覆除去部３７がガイドレール３５に沿って矢印Ｂ方向へ移動する。 4 and 5, when the motor 39 is rotated in the reverse direction after the sheath removing portion 37 has moved in the direction of arrow A, the ball screw 51 rotates in the same direction, so that the sheath removing portion 37 is moved to the guide rail 35. Along the arrow B.

尚、図示しないが基台３１上にモータ３９の正、逆回転スイッチが取り付き、また、図１及び図４に示すようにガイドレール３５近傍の基台３１上に、連結ブラケット５５の位置を検出する２個のフォトマイクロセンサ６５、６７が取り付けられており、正回転スイッチのＯＮ操作で、既述したように被覆除去部３７が、図１の位置（被覆除去前の位置）からモータ３９の正回転でブラケット５５等を介して図４の位置（被覆除去後の位置）まで移動すると、フォトマイクロセンサ６５がこれを検出してモータ３９の駆動を停止させるようになっている。 Although not shown, the forward / reverse rotation switch of the motor 39 is mounted on the base 31, and the position of the connecting bracket 55 is detected on the base 31 near the guide rail 35 as shown in FIGS. Two photomicrosensors 65 and 67 are attached, and when the forward rotation switch is turned ON, as described above, the coating removal unit 37 moves the motor 39 from the position shown in FIG. 1 (position before coating removal). When it moves to the position shown in FIG. 4 (position after coating removal) via the bracket 55 and the like by forward rotation, the photomicro sensor 65 detects this and stops driving the motor 39.

また、逆回転スイッチのＯＮ操作で、被覆除去部３７がモータ３９の逆回転で図４の位置から図１の位置まで戻ると、フォトマイクロセンサ６７がこれを検出してモータ３９の駆動を停止させるようになっている。 In addition, when the reverse rotation switch is turned ON and the coating removal unit 37 returns from the position of FIG. 4 to the position of FIG. 1 due to the reverse rotation of the motor 39, the photomicrosensor 67 detects this and stops driving the motor 39. It is supposed to let you.

そして、ロードセル６３は、モータ駆動時の連結ブラケット５５に掛かる荷重を検知しており、例えばガイドレール３５上に誤って物が置かれているために被覆除去部３７の移動が妨げられて連結ブラケット５５に所定値以上の荷重が掛かると、ロードセル６３はこれを検知してモータ３９の駆動を停止させることで、モータ３９の焼損や連結ブラケット５５等の破損を防止するようになっている。 The load cell 63 detects a load applied to the connection bracket 55 when the motor is driven. For example, since an object is mistakenly placed on the guide rail 35, the movement of the covering removal portion 37 is hindered. When a load greater than or equal to a predetermined value is applied to the load 55, the load cell 63 detects this and stops the drive of the motor 39, thereby preventing the motor 39 from being burned and the connecting bracket 55 and the like from being damaged.

図７乃至図２２は被覆除去部３７の詳細を示し、図７乃至図１５に示すように被覆除去部３７は、後述する追従手段６９によりガイドレール３５に沿って順次追従可能に連結された複数の除去台７１と、各除去台７１に開閉自在に取り付く除去蓋７３とで構成されている。 FIGS. 7 to 22 show details of the coating removing section 37. As shown in FIGS. 7 to 15, the coating removing section 37 is connected by a tracking means 69 (described later) along the guide rail 35 so as to be sequentially trackable. The removal table 71 and a removal lid 73 that is attached to each removal table 71 so as to be openable and closable.

図７乃至図９に示すように除去台７１は、ブロック状に形成された除去台本体７５と、この底部に取り付くブロック状の脚部７７とからなり、脚部７７の底部にはガイドレール３５の断面形状に沿って凹部７９が設けられている。そして、図９に示すように凹部７９の左右の側面８１に、断面略く字状の円錐凹部８３がガイドレール３５の長手方向に所定のピッチ幅を空けて形成されている。一方、これらに対向してガイドレール３５の左右の側面８５には、断面略く字状のガイド溝８７がガイドレール３５の長手方向に沿って形成されている。 As shown in FIGS. 7 to 9, the removal table 71 includes a removal table main body 75 formed in a block shape and a block-shaped leg portion 77 attached to the bottom portion. A recess 79 is provided along the cross-sectional shape. As shown in FIG. 9, conical recesses 83 having a substantially square cross section are formed on the left and right side surfaces 81 of the recess 79 with a predetermined pitch width in the longitudinal direction of the guide rail 35. On the other hand, on the left and right side surfaces 85 of the guide rail 35 facing each other, guide grooves 87 having a substantially square cross section are formed along the longitudinal direction of the guide rail 35.

そして、図７及び図９に示すように各円錐凹部８３とガイド溝８７間に、夫々、一個の鋼球８９が装着されており、斯かる構造によってガイドレール３５に沿った除去台７１のスムーズな移動を可能とし、併せて除去台７１の左右方向へのガタ付き防止を図っている。 As shown in FIGS. 7 and 9, one steel ball 89 is mounted between each conical recess 83 and the guide groove 87, and the smoothness of the removal table 71 along the guide rail 35 is ensured by such a structure. In addition, the removal table 71 is prevented from rattling in the left-right direction.

一方、図１、図１０及び図１６乃至図１８に示すように除去台本体７５の表面の中央に、モジュール４１から被覆除去部３７へ案内した１本の光ファイバ４３を挿入させる光ファイバ挿入溝９１が形成されている。 On the other hand, as shown in FIGS. 1, 10, and 16 to 18, an optical fiber insertion groove into which one optical fiber 43 guided from the module 41 to the coating removal unit 37 is inserted in the center of the surface of the removal base body 75. 91 is formed.

そして、図１６及び図１８に示すように光ファイバ挿入溝９１を挟んで除去台本体７５の後部側面９３の左右には、夫々、長尺な１本のネジ９５が光ファイバ挿入溝９１に沿って螺着されており、当該ネジ９５は追従手段６９の構成部材である。 16 and 18, a single long screw 95 is provided along the optical fiber insertion groove 91 on the left and right sides of the rear side surface 93 of the removal base body 75 with the optical fiber insertion groove 91 interposed therebetween. The screw 95 is a constituent member of the follow-up means 69.

一方、前記後部側面９３側に隣接する次の除去台７１の除去台本体７５には、突片９７を残して凹状の切欠き９９が光ファイバ挿入溝９１を挟んで前部側の左右に形成されており、左右の当該突片９７に、前記ネジ９５の軸部１０１が挿通するネジ挿通穴１０３が設けられている。 On the other hand, in the removal table main body 75 of the next removal table 71 adjacent to the rear side surface 93 side, a concave notch 99 is formed on the left and right sides of the front part with the optical fiber insertion groove 91 interposed therebetween, leaving a protruding piece 97. The right and left projecting pieces 97 are provided with screw insertion holes 103 through which the shaft portion 101 of the screw 95 is inserted.

前記ネジ挿通穴１０３は軸部１０１より短寸に設定されており、図１６の如く隣接する除去台本体７５同士が接触しているとき、ネジ９５のネジ首部１０５は切欠き９９内に突出している。そして、図１に示すように被覆除去部３７を構成する複数の除去台７１のうち、最先端の１個の除去台７１ａに前記連結ブラケット６１が連結しており、既述したようにモータ３９の正回転で連結ブラケット５５、ロードセル６３、連結ブラケット６１が矢印Ａ方向へ移動すると、先ず、図１６に示すように最先端の除去台７１ａが矢印Ａ方向へ移動する。 The screw insertion hole 103 is set to be shorter than the shaft portion 101, and when the adjacent removal base bodies 75 are in contact with each other as shown in FIG. 16, the screw neck portion 105 of the screw 95 protrudes into the notch 99. Yes. As shown in FIG. 1, the connecting bracket 61 is connected to one of the most advanced removal bases 71a among the plurality of removal bases 71 constituting the coating removal unit 37. As described above, the motor 39 When the connecting bracket 55, the load cell 63, and the connecting bracket 61 are moved in the direction of arrow A by the forward rotation, first, the most advanced removal table 71a is moved in the direction of arrow A as shown in FIG.

すると、図１７に示すように除去台７１ａ側のネジ９５のネジ首部１０５が、隣接する次の除去台７１側のネジ挿通穴１０３の外側周縁部に係止するため、この除去台７１が除去台７１ａに追従して矢印Ａ方向へ移動し、以下、連結された複数の除去台７１が、前側の除去台７１に追従して順次矢印Ａ方向へ移動するようになっている。 Then, as shown in FIG. 17, the screw neck portion 105 of the screw 95 on the removal table 71a side is locked to the outer peripheral edge of the screw insertion hole 103 on the next adjacent removal table 71 side. Following the table 71a, it moves in the direction of arrow A. Hereinafter, the plurality of connected removal tables 71 follow the front removal table 71 and sequentially move in the direction of arrow A.

そして、被覆除去部３７が図４の位置まで移動して、フォトマイクロセンサ６５の指令でモータ３９が停止すると、追従して移動してきた除去台７１は、図１６の如く順次当接するようになっている。 Then, when the coating removal unit 37 moves to the position shown in FIG. 4 and the motor 39 is stopped by the command of the photomicrosensor 65, the removal table 71 that has moved following it sequentially comes into contact as shown in FIG. ing.

追従手段６９はこのように構成されており、図４の位置に被覆除去部３７が移動した後、モータ３９の逆回転で被覆除去部３７がガイドレール３５に沿って矢印Ｂ方向へ移動する際には、連結ブラケット６１が連結された最先端の除去台７１ａが、総ての除去台７１を同時に矢印Ｂ方向へ移動させることとなる。 The follow-up means 69 is configured in this way, and when the coating removal unit 37 moves to the position of FIG. 4, the coating removal unit 37 moves in the direction of arrow B along the guide rail 35 by the reverse rotation of the motor 39. In other words, the state-of-the-art removal base 71a to which the connection bracket 61 is connected moves all the removal bases 71 in the arrow B direction at the same time.

また、図１６及び図１８乃至図２１に示すように除去台本体７５の後部側面９３側の表面には、同軸上に平面視円形状の大小２種類の貫通穴１０７、１０９が光ファイバ挿入溝９１を挟んで左右対称に形成されると共に、夫々の中心を通るカッター刃取付溝１１１が光ファイバ挿入溝９１と直交して設けられている。 Further, as shown in FIGS. 16 and 18 to 21, two large and small through holes 107 and 109 having a circular shape in a plan view are coaxially formed on the surface on the rear side surface 93 side of the removal table main body 75. The cutter blade mounting grooves 111 that pass through the respective centers are provided orthogonal to the optical fiber insertion groove 91.

そして、左右の外側に位置する２つの小径な貫通孔１０９は、後述する作動ピン１１３が上方から挿入可能なカッター刃操作穴であり、内側に位置する２つの大径な貫通孔１０７はカッター刃取付穴であって、図１９及び図２０に示すように当該カッター刃取付穴１０７を介してカッター刃取付溝１１１に、左右一対のカッター刃１１５、１１７が除去台本体７５の表面と面一に取り付けられている。 Two small-diameter through holes 109 positioned on the left and right outer sides are cutter blade operation holes into which an operation pin 113 described later can be inserted from above, and two large-diameter through holes 107 positioned on the inner side are cutter blades. 19 and 20, a pair of left and right cutter blades 115, 117 are flush with the surface of the removal table main body 75 through the cutter blade mounting hole 107, as shown in FIGS. It is attached.

図１９に示すようにカッター刃１１５、１１７は側面視矩形状に形成され、後部側の上部角部に、夫々、作動ピン１１３の先端が当接する作動用の傾斜辺１１９が形成されている。 As shown in FIG. 19, the cutter blades 115 and 117 are formed in a rectangular shape in a side view, and an operation inclined side 119 with which the tip of the operation pin 113 abuts is formed at the upper corner portion on the rear side.

また、図２０に示すようにカッター刃１１５、１１７の底部には、夫々、凹部１２１が形成され、両凹部１２１間に、両カッター刃１１５、１１７を互いに離間させる方向（図２０中、矢印Ｃ、Ｄ方向）に付勢する側面視コ字状の板バネ（バネ部材）１２３が係止されている。 In addition, as shown in FIG. 20, concave portions 121 are respectively formed at the bottoms of the cutter blades 115 and 117, and the direction in which the cutter blades 115 and 117 are separated from each other between the concave portions 121 (in FIG. 20, arrow C , And a plate spring (spring member) 123 that is U-shaped in a side view and is biased in the D direction).

一方、図２０に示すようにカッター刃１１５、１１７の対向する先端側の中央には半円状の刃部１２５が設けられており、後述するように板バネ１２３のバネ力に抗して両カッター刃１１５、１１７が作動ピン１１３により移動操作されて、図２１の如くカッター刃１１５、１１７の先端側が互いに当接すると、両刃部１２５が光ファイバ挿入溝９１内に挿入された光ファイバ４３の二次被覆に切り込みを入れる（二次被覆を切断する）ようになっている。 On the other hand, as shown in FIG. 20, a semi-circular blade portion 125 is provided in the center of the opposed tip side of the cutter blades 115, 117, and both of them are resisted against the spring force of the leaf spring 123 as will be described later. When the cutter blades 115 and 117 are moved by the operation pins 113 and the leading ends of the cutter blades 115 and 117 come into contact with each other as shown in FIG. 21, both the blade portions 125 of the optical fiber 43 inserted into the optical fiber insertion groove 91 are formed. A cut is made in the secondary coating (cutting the secondary coating).

従って、カッター刃１１５、１１７の先端側が互いに当接した位置は、光ファイバ挿入溝９１の中央となるように設定されている。 Therefore, the position where the tip sides of the cutter blades 115 and 117 are in contact with each other is set to be the center of the optical fiber insertion groove 91.

尚、図２０に示すようにカッター刃取付穴１０７とカッター刃操作穴１０９との間の隔壁１２７は、除去台本体７５の表面と面一にカッター刃１１５、１１７をカッター刃取付溝１１１内に収納できる高さ寸法とされている。 20, the partition wall 127 between the cutter blade mounting hole 107 and the cutter blade operation hole 109 has the cutter blades 115 and 117 in the cutter blade mounting groove 111 so as to be flush with the surface of the removal base body 75. It is the height that can be stored.

そして、各除去台７１の除去台本体７５に、除去蓋７３が開閉可能に取り付けられている。 And the removal lid 73 is attached to the removal stand main body 75 of each removal stand 71 so that opening and closing is possible.

図１０、図１６及び図１７に示すように除去台本体７５の左右の略中央に凹状の切欠き１２９が形成されており、当該切欠き１２９内にネジ９５の軸部１０１が貫通している。 As shown in FIGS. 10, 16, and 17, a concave notch 129 is formed at substantially the left and right centers of the removal table main body 75, and the shaft portion 101 of the screw 95 passes through the notch 129. .

一方、図１０、図１２乃至図１５に示すように除去蓋７３の一側縁には、前記切欠き１２９内に挿入可能で前記軸部１０１が貫通する矩形状の突片１３１が一体的に設けられており、この取付構造を以って除去蓋７３が除去台本体７５に開閉可能に取り付けられている。 On the other hand, as shown in FIGS. 10, 12 to 15, a rectangular protruding piece 131 that can be inserted into the notch 129 and through which the shaft portion 101 passes is integrally formed on one side edge of the removal lid 73. With this mounting structure, the removal lid 73 is attached to the removal base body 75 so as to be openable and closable.

除去蓋７３は除去台本体７５の表面と同一形状、同一寸法とされており、図１０乃至図１５に示すように除去蓋７３を閉じると、除去台本体７５の表面全体が除去蓋７３で覆われるようになっている。そして、図１０、図１２及び図１３に示すように除去蓋７３の裏面の中央付近には矩形状のゴムシート１３３が貼着されており、除去蓋７３を除去台本体７５へ閉じた際に、ゴムシート１３３が除去台本体７５と除去蓋７３の直接の接触をなくして衝撃の吸収を図っている。 The removal lid 73 has the same shape and the same size as the surface of the removal table main body 75, and when the removal lid 73 is closed as shown in FIGS. 10 to 15, the entire surface of the removal table main body 75 is covered with the removal lid 73. It has come to be. 10, 12, and 13, a rectangular rubber sheet 133 is stuck near the center of the back surface of the removal lid 73, and when the removal lid 73 is closed to the removal base body 75. The rubber sheet 133 eliminates the direct contact between the removal table main body 75 and the removal lid 73 to absorb the impact.

また、図１０、図１９(b)〜(d)及び図２２(a)〜(d)に示すように除去蓋７３には、除去台本体７５に設けた２つのカッター刃操作穴１０９に対応して２つの作動ピン挿通穴１３５が形成されている。 Further, as shown in FIGS. 10, 19 (b) to 19 (d) and FIGS. 22 (a) to 22 (d), the removal lid 73 corresponds to the two cutter blade operation holes 109 provided in the removal base body 75. Thus, two operating pin insertion holes 135 are formed.

更に、除去蓋７３の左右の側面には、一対の矩形状の支持板（支持部材）１３７が前記作動ピン挿通穴１３５を挟んで立設しており、図１０に示すように両支持板１３７には、側面視逆Ｊ字状のガイド穴１３９が対向して設けられている。そして、両ガイド穴１３９間に、前記作動ピン挿通穴１３５に挿入可能な２本の作動ピン１１３が挿着したブロック状の作動ピン支持体（支持部材）１４１が、当該作動ピン支持体１４１の側部に突出する支持軸１４３を介して係合しており、図１０及び図１４に示すように作動ピン１１３の先端を、夫々、前記作動ピン挿通穴１３５に挿入し乍ら、支持軸１４３をガイド穴１３９に設けた仮保持部１４５に引っ掛けておくと、この位置で作動ピン１１３（作動ピン支持体１４１）が支持板１３７（仮保持部１４５）に仮保持されるようになっている。 Further, on the left and right side surfaces of the removal lid 73, a pair of rectangular support plates (support members) 137 are erected with the operation pin insertion hole 135 interposed therebetween, and as shown in FIG. Are provided with opposite J-shaped guide holes 139 in a side view. A block-shaped operating pin support body (support member) 141 in which two operating pins 113 that can be inserted into the operating pin insertion holes 135 are inserted between the guide holes 139 is formed on the operating pin support body 141. The support shaft 143 is engaged through a support shaft 143 protruding to the side, and the tip of the operation pin 113 is inserted into the operation pin insertion hole 135 as shown in FIGS. Is hooked on the temporary holding portion 145 provided in the guide hole 139, the operating pin 113 (the operating pin support body 141) is temporarily held on the support plate 137 (temporary holding portion 145) at this position. .

そして、斯様に作動ピン１１３が支持板１３７に仮保持された状態で、図１５、図１９(a)、図２２(a)の如く除去蓋７３を除去台７１へ閉じて、図１９(b)〜(d)及び図２２(b)〜(d)に示すように、ガイド穴１３９から左右に突出する支持軸１４３の先端を２本の指先で挟み乍ら、作動ピン支持体１４１をガイド穴１３９に沿って下ろしていくと、２本の作動ピン１１３が除去台本体７５のカッター刃操作穴１０９内に挿入されるようになっている。そして、作動ピン１１３が下降していくに従い、図１９(c)に示すように作動ピン１１３の先端が傾斜辺１１９に当接して、作動ピン１１３が板バネ１２３のバネ力に抗して一対のカッター刃１１５、１１７を図２０の矢印Ｅ、Ｆ方向へ移動操作するため、図２１の如くカッター刃１１５、１１７の先端側が互いに当接するようになっている。 Then, with the operating pin 113 temporarily held on the support plate 137, the removal lid 73 is closed to the removal base 71 as shown in FIGS. 15, 19 (a), 22 (a), and FIG. As shown in FIGS. 22 (b) to 22 (d) and 22 (b) to 22 (d), the tip of the support shaft 143 protruding left and right from the guide hole 139 is sandwiched between two fingertips, and the operating pin support 141 is moved. When lowered along the guide hole 139, the two operating pins 113 are inserted into the cutter blade operation hole 109 of the removal base body 75. Then, as the operating pin 113 is lowered, the tip of the operating pin 113 comes into contact with the inclined side 119 as shown in FIG. 19C, and the operating pin 113 resists the spring force of the leaf spring 123. In order to move the cutter blades 115 and 117 in the directions of arrows E and F in FIG. 20, the tip sides of the cutter blades 115 and 117 are brought into contact with each other as shown in FIG.

従って、光ファイバ挿入溝９１内に光ファイバ４３を挿入しておけば、カッター刃１１５、１１７の両刃部１２５によって、光ファイバ４３の二次被覆に切り込みが入れられることとなる。 Therefore, if the optical fiber 43 is inserted into the optical fiber insertion groove 91, the secondary coating of the optical fiber 43 is cut by the both blade portions 125 of the cutter blades 115 and 117.

そして、斯かる状態で作動ピン支持体１４１をガイド穴１３９に沿って上昇させれば、作動ピン１１３による押圧力が解除されて、カッター刃１１５、１１７は板バネ１２３の復元力で図１９(b)、図２０の位置に戻るように構成されている。 If the operating pin support 141 is raised along the guide hole 139 in such a state, the pressing force by the operating pin 113 is released, and the cutter blades 115 and 117 are restored by the restoring force of the leaf spring 123 as shown in FIG. b) It is configured to return to the position of FIG.

更に、図８、図１２乃至図１５に示すように各除去蓋７３の中央には、ガイドレール３５に沿って貫通穴１４７が同軸上に設けられている。そして、各貫通穴１４７に図示しない１本の連結軸が挿通しており、斯様に連結軸が挿通することで、総ての除去蓋７３を同時に開閉操作することができる。 Further, as shown in FIGS. 8 and 12 to 15, a through hole 147 is coaxially provided along the guide rail 35 in the center of each removal lid 73. A single connecting shaft (not shown) is inserted into each through hole 147, and the connecting shafts are inserted in this way, so that all the removal lids 73 can be opened / closed simultaneously.

また、前記追従手段６９によって除去台７１が段階的に追従動する際にも、連結軸は貫通穴１４７を挿通しているだけであるため、除去台７１、７１ａ及び除去蓋７３の移動に支障を来すことがない。 In addition, even when the removal base 71 follows in a stepwise manner by the follower 69, the connecting shaft only passes through the through hole 147, which hinders the movement of the removal bases 71, 71a and the removal lid 73. Never come.

次に、基台３１上に配置したモジュール４１から被覆除去部３７へ案内した１本の光ファイバ４３を押さえる押圧手段４５について説明すると、図１、図２３及び図２４に示すように押圧手段４５は、基台３１上に設置ブラケット１４９を介して矢印方向へ揺動操作可能に設置された操作レバー１５１と、当該操作レバー１５１の操作で基台３１に沿って前後動する押圧ステー１５３と、当該押圧ステー１５３の先端が当接する受部１５５とで構成されており、押圧ステー１５３は設置ブラケット１４７に取り付くガイド部材１５７を挿通している。 Next, the pressing means 45 for pressing one optical fiber 43 guided from the module 41 arranged on the base 31 to the coating removing unit 37 will be described. As shown in FIGS. Includes an operation lever 151 installed on the base 31 so as to be swingable in the direction of the arrow through an installation bracket 149, a pressing stay 153 that moves back and forth along the base 31 by the operation of the operation lever 151, The pressing stay 153 includes a receiving portion 155 with which the tip of the pressing stay 153 comes into contact. The pressing stay 153 passes through a guide member 157 attached to the installation bracket 147.

図２４に示すように押圧ステー１５３の後端側はＬ字状に折曲されて、操作レバー１５１側に取り付く２つの連結ブラケット１５９、１６１に回転自在に係合しており、この連結ブラケット１５９、１６１の作用で、操作レバー１５１の矢印方向の操作が、押圧ステー１５３の前後方向への往復動に変換されるようになっている。そして、図１に示すように押圧ステー１５３の先端に、受部１５５の外周１６３に当接する断面略Ｌ字状の押圧ブラケット１６５が取り付けられている。 As shown in FIG. 24, the rear end side of the pressing stay 153 is bent in an L shape, and is rotatably engaged with two connecting brackets 159 and 161 attached to the operation lever 151 side. 161, the operation of the operation lever 151 in the arrow direction is converted into the reciprocating motion of the pressing stay 153 in the front-rear direction. As shown in FIG. 1, a pressing bracket 165 having a substantially L-shaped cross section that contacts the outer periphery 163 of the receiving portion 155 is attached to the tip of the pressing stay 153.

図１及び図３に示すように受部１５５は断面略Ｄ字形状の筒体からなり、モジュール４１から引き出した１本の光ファイバ４３を受部１５５の円弧状の外周１６３に沿って被覆除去部３７へ案内すると、前記光ファイバ挿入溝９１に光ファイバ４３が簡単に挿入できるようになっている。そして、斯かる状態で前記操作レバー１５１を操作すると、押圧ステー１５３が前方へ移動し、前記押圧ブラケット１６５と外周１６３との間で光ファイバ４３が挟持、固定されるようになっている。 As shown in FIGS. 1 and 3, the receiving portion 155 is a cylindrical body having a substantially D-shaped cross section, and one optical fiber 43 drawn from the module 41 is removed from the coating along the arc-shaped outer periphery 163 of the receiving portion 155. When guided to the portion 37, the optical fiber 43 can be easily inserted into the optical fiber insertion groove 91. When the operation lever 151 is operated in such a state, the pressing stay 153 moves forward, and the optical fiber 43 is sandwiched and fixed between the pressing bracket 165 and the outer periphery 163.

本実施形態に係る光ファイバ被覆除去装置３３はこのように構成されており、次に、モジュール４１の被覆径φ９００μｍの光ファイバ４３と、被覆径の異なるφ２５０μｍの光ファイバを多心スプライスするに当たり、光ファイバ被覆除去装置３３を用いて光ファイバ４３の二次被覆を除去する方法を説明する。 The optical fiber coating removal apparatus 33 according to the present embodiment is configured as described above. Next, when the optical fiber 43 of the module 41 having a coating diameter of φ900 μm and the optical fiber of φ250 μm having a different coating diameter are spliced, A method for removing the secondary coating of the optical fiber 43 using the optical fiber coating removing apparatus 33 will be described.

[1]先ず、図１に示す位置に被覆除去部３７をセットして除去蓋７３を開放し、基台３１上にモジュール４１を配置する。このとき、図１０及び図１４に示すように作動ピン１１３の先端を夫々作動ピン挿通穴１３５に挿入して、作動ピン支持体１４１の支持軸１４３をガイド穴１３９の仮保持部１４５に引っ掛けておく。 [1] First, the coating removal unit 37 is set at the position shown in FIG. 1, the removal lid 73 is opened, and the module 41 is placed on the base 31. At this time, as shown in FIGS. 10 and 14, the tips of the operating pins 113 are inserted into the operating pin insertion holes 135, respectively, and the support shaft 143 of the operating pin support 141 is hooked on the temporary holding portion 145 of the guide hole 139. deep.

[2]次に、図１に示すようにモジュール４１から引き出した１本の光ファイバ４３を、受部１５５の円弧状の外周１６３に沿って被覆除去部３７へ案内し、各除去台７１、７１ａ（各除去台本体７５）の光ファイバ挿入溝９１内に挿入する。そして、操作レバー１５１を操作して、押圧ステー１５３先端の押圧ブラケット１６５で光ファイバ４３を受部１５５の外周１６３との間に挟持、固定する。 [2] Next, as shown in FIG. 1, one optical fiber 43 drawn out from the module 41 is guided to the coating removing unit 37 along the arc-shaped outer periphery 163 of the receiving unit 155, and each removing table 71, It inserts in the optical fiber insertion groove | channel 91 of 71a (each removal stand main body 75). Then, by operating the operation lever 151, the optical fiber 43 is sandwiched and fixed between the outer periphery 163 of the receiving portion 155 by the pressing bracket 165 at the tip of the pressing stay 153.

[3]そして、除去蓋７３を閉じる。各除去台７１、７１ａに取り付く除去蓋７３は、図示しない１本の連結軸によって連結されているため、一つの除去蓋７３を閉じれば、総ての除去蓋７３が同時に閉じられることとなる。 [3] Then, the removal lid 73 is closed. Since the removal lids 73 attached to the removal stands 71 and 71a are connected by one connecting shaft (not shown), if one removal lid 73 is closed, all the removal lids 73 are simultaneously closed.

[4]この後、最先端の除去台７１ａ側から順番に、ガイド穴１３９から左右に突出する支持軸１４３の先端を２本の指先で挟み乍ら、図１９(b)及び図２２(b)の如く作動ピン支持体１４１をガイド穴１３９に沿って下ろしていく。 [4] Thereafter, the tip of the support shaft 143 protruding left and right from the guide hole 139 is sandwiched between two fingertips in order from the most advanced removal base 71a side, and FIG. 19 (b) and FIG. The operation pin support 141 is lowered along the guide hole 139 as shown in FIG.

而して、斯様に作動ピン支持体１４１を下ろしていくと、２本の作動ピン１１３が、夫々、除去台本体７５のカッター刃操作穴１０９内に挿入されて、図１９(c)に示すように作動ピン１１３の先端が傾斜辺１１９に当接するため、板バネ１２３のバネ力に抗して一対のカッター刃１１５、１１７が図２０の矢印Ｅ、Ｆ方向へ移動操作され、図２１の如くカッター刃１１５、１１７の先端側が互いに当接して、光ファイバ挿入溝９１内の光ファイバ４３の二次被覆に刃部１２５が切り込みを入れる。 Thus, when the operation pin support 141 is lowered as described above, the two operation pins 113 are inserted into the cutter blade operation holes 109 of the removal table main body 75, respectively, as shown in FIG. As shown, since the tip of the operating pin 113 contacts the inclined side 119, the pair of cutter blades 115 and 117 are moved in the directions of arrows E and F in FIG. 20 against the spring force of the leaf spring 123, and FIG. As described above, the leading ends of the cutter blades 115 and 117 are brought into contact with each other, and the blade portion 125 cuts into the secondary coating of the optical fiber 43 in the optical fiber insertion groove 91.

以下、同様の操作を最先端の除去台７１ａ側から順番に行うことで、各除去台７１、７１ａ間のカッター刃１１５、１１７のピッチで二次被覆に短く切り込みが入れられていく。 Hereinafter, by performing the same operation in order from the most advanced removal table 71a side, the secondary coating is cut short at the pitch of the cutter blades 115 and 117 between the removal tables 71 and 71a.

[5]総ての除去台７１、７１ａで、カッター刃１１５、１１７によって二次被覆に切り込みを入れた後、基台３１上の正回転スイッチをＯＮ操作する。 [5] After all the removal bases 71 and 71a have cut the secondary coating with the cutter blades 115 and 117, the forward rotation switch on the base 31 is turned ON.

斯様に正回転スイッチをＯＮ操作すると、モータ３９の正回転で連結ブラケット５５、ロードセル６３、連結ブラケット６１が矢印Ａ方向へ移動し、先ず、図１６に示すように最先端の除去台７１ａが矢印Ａ方向へ移動し乍ら、カッター刃１１５、１１７（刃部１２５）で切断した光ファイバ４３の二次被覆を同方向へ除去していく。 When the forward rotation switch is turned ON in this way, the connection bracket 55, the load cell 63, and the connection bracket 61 are moved in the direction of arrow A by the forward rotation of the motor 39. First, as shown in FIG. While moving in the direction of arrow A, the secondary coating of the optical fiber 43 cut by the cutter blades 115 and 117 (blade portion 125) is removed in the same direction.

そして、除去台７１ａが矢印Ａ方向へ移動すると、図１７に示すように除去台７１ａ側のネジ９５のネジ首部１０５が、隣接する次の除去台７１側のネジ挿通穴１０３の外側周縁部に係止するため、この除去台７１が除去台７１ａに追従して矢印Ａ方向へ移動し乍ら、カッター刃１１５、１１７で切断した光ファイバ４３の二次被覆を同方向へ除去していく。 When the removal table 71a moves in the direction of arrow A, as shown in FIG. 17, the screw neck 105 of the screw 95 on the removal table 71a side is positioned on the outer peripheral edge of the screw insertion hole 103 on the next adjacent removal table 71 side. In order to lock, the removal base 71 follows the removal base 71a and moves in the direction of arrow A, while the secondary coating of the optical fiber 43 cut by the cutter blades 115 and 117 is removed in the same direction.

以下、連結された複数の除去台７１が、前側の除去台７１に追従して順次矢印Ａ方向へ移動し乍ら、夫々のカッター刃１１５、１１７で切断した光ファイバ４３の二次被覆を、順次、同方向へ除去していく。 Hereinafter, while the plurality of connected removal bases 71 sequentially move in the direction of arrow A following the front side removal base 71, the secondary coating of the optical fiber 43 cut by the respective cutter blades 115 and 117, Sequentially remove in the same direction.

このとき、除去蓋７３を一体化させている連結軸は貫通穴１４７を挿通しているだけであるため、除去台７１、７１ａ及び除去蓋７３の追従動に支障を来すことがない。 At this time, since the connecting shaft that integrates the removal lid 73 is only inserted through the through hole 147, the following movement of the removal stands 71 and 71 a and the removal lid 73 is not hindered.

また、ロードセル６３は、モータ駆動時の連結ブラケット５５に掛かる荷重を検知しており、例えばガイドレール３５上に誤って物が置かれているために被覆除去部３７の移動が妨げられて連結ブラケット５５に所定値以上の荷重が掛かると、これを検知したロードセル６３はモータ３９の駆動を停止させて、モータ３９の焼損や連結ブラケット５５等の破損を防止する。 Further, the load cell 63 detects a load applied to the connection bracket 55 when the motor is driven. For example, since an object is mistakenly placed on the guide rail 35, the movement of the covering removal portion 37 is hindered and the connection bracket When a load greater than or equal to a predetermined value is applied to 55, the load cell 63 that detects this stops the drive of the motor 39 and prevents the motor 39 from being burned or the connecting bracket 55 etc. from being damaged.

[6]被覆除去部３７全体が、図１の位置からモータ３９の正回転でブラケット５５等を介して図４の位置まで移動すると、フォトマイクロセンサ６５がこれを検出してモータ３９の駆動を停止させる。 [6] When the entire coating removal unit 37 is moved from the position shown in FIG. 1 to the position shown in FIG. 4 via the bracket 55 or the like by the forward rotation of the motor 39, the photomicrosensor 65 detects this and drives the motor 39. Stop.

このように被覆除去部３７全体が図４の位置に移動することで、各除去台７１、７１ａ内のカッター刃１１５、１１７で短く切断された光ファイバ４３の二次被覆が総て光ファイバ４３から除去され、図４に示すようにガイドレール３５上には、二次被覆が除去された光ファイバ４３の一次被覆１６７が露出する。 As a result, the entire coating removal portion 37 is moved to the position shown in FIG. 4, so that the secondary coating of the optical fiber 43 that has been cut short by the cutter blades 115 and 117 in the removal stands 71 and 71 a is all optical fiber 43. The primary coating 167 of the optical fiber 43 from which the secondary coating has been removed is exposed on the guide rail 35 as shown in FIG.

[7]次いで、作動ピン支持体１４１をガイド穴１３９に沿って上昇させると、作動ピン１１３による押圧力が解除されて、カッター刃１１５、１１７が板バネ１２３の復元力で図１９(b)、図２０の位置に戻り、各除去台７１、７１ａの光ファイバ挿入溝９１内に二次被覆が残る。 [7] Next, when the operating pin support 141 is raised along the guide hole 139, the pressing force by the operating pin 113 is released, and the cutter blades 115 and 117 are restored by the restoring force of the leaf spring 123 as shown in FIG. Returning to the position of FIG. 20, the secondary coating remains in the optical fiber insertion groove 91 of each removal table 71, 71a.

[8]そして、作動ピン支持体１４１の支持軸１４３をガイド穴１３９の仮保持部１４５に引っ掛け、除去蓋７３を開いて、各除去台７１、７１ａの光ファイバ挿入溝９１内の二次被覆を取り除き、押圧手段４５の操作レバー１５１を操作して、押圧ブラケット１６５による光ファイバ４３の挟持を解除する。 [8] Then, the support shaft 143 of the operating pin support 141 is hooked on the temporary holding portion 145 of the guide hole 139, the removal lid 73 is opened, and the secondary coating in the optical fiber insertion groove 91 of each removal stand 71, 71a. And the operation lever 151 of the pressing means 45 is operated to release the holding of the optical fiber 43 by the pressing bracket 165.

[9]この後、逆回転スイッチをＯＮ操作して、モータ３９の逆回転で被覆除去部３７を図４の位置から図１の位置まで戻せばよく、被覆除去部３７が図１の位置まで戻ると、フォトマイクロセンサ６７がこれを検出してモータ３９の駆動を停止させる。 [9] Thereafter, the reverse rotation switch is turned ON, and the coating removal unit 37 is returned from the position of FIG. 4 to the position of FIG. 1 by the reverse rotation of the motor 39. The coating removal unit 37 is moved to the position of FIG. When returning, the photomicrosensor 67 detects this and stops the drive of the motor 39.

[10]以下、モジュール４１から引き出した次の１本の光ファイバ４３を、受部１５５の円弧状の外周１６３に沿って被覆除去部３７へ案内し、各除去台７１、７１ａの光ファイバ挿入溝９１内に挿入して既述した操作を繰り返すことで、光ファイバ４３の二次被覆の除去が行われていくこととなる。 [10] Hereinafter, the next optical fiber 43 drawn out from the module 41 is guided to the coating removing unit 37 along the arc-shaped outer periphery 163 of the receiving unit 155, and the optical fibers are inserted into the respective removing stands 71 and 71a. The secondary coating of the optical fiber 43 is removed by repeating the operation described above after being inserted into the groove 91.

そして、１個の除去台７１、７１ａとこれに取り付く１枚の除去蓋７３は、所謂ユニット化されて、他の除去台７１、７１ａ、除去蓋７３と追従手段６９及び連結軸（図示せず）を介して簡単に連結／解除が可能であるから、被覆除去の要求長さの変化に対応するには、連結する除去台７１及び除去蓋７３の数を調整すればよい。 One removal table 71, 71a and one removal cover 73 attached thereto are formed as a so-called unit, and the other removal table 71, 71a, removal cover 73, follower 69, and connecting shaft (not shown). ), The number of removal bases 71 and removal lids 73 to be connected may be adjusted in order to cope with a change in the required length for removing the coating.

このように本実施形態は、二次被覆に切り込みを入れるカッター刃１１５、１１７を備えた、所謂ユニット化した除去台７１、７１ａと除去蓋７３を追従手段６９にて連結し、これらを段階的に追従動させるように構成して、各除去台７１、７１ａ間のカッター刃１１５、１１７のピッチで短く切り込みが入れられた二次被覆を段階的に除去していくように構成したので、二次被覆を除去する際に、一次被覆１６７やファイバ芯線に過度な負荷がかかることがない。 As described above, in the present embodiment, the so-called unitized removal bases 71 and 71a having the cutter blades 115 and 117 for incising the secondary coating and the removal lid 73 are connected by the follower 69, and these are stepwise. The secondary coating that has been cut short at the pitch of the cutter blades 115, 117 between the removal bases 71, 71a is removed step by step. When removing the secondary coating, an excessive load is not applied to the primary coating 167 and the fiber core wire.

また、１個の除去台７１、７１ａとこれに取り付く１枚の除去蓋７３はユニット化されて、他の除去台７１、７１ａ、除去蓋７３と追従手段６９及び連結軸（図示せず）を介して簡単に連結／解除が可能であるから、連結する除去台７１及び除去蓋７３の数を調整することで、特許文献１の従来例に比し被覆除去の要求長さの変化に容易に対応することができ、装置が大型化することもない。更に、１ユニットの長さを変化させると、１つのカッター刃１１５、１１７にかかる力を変化させられるため、力の調節も可能である。 Further, one removal table 71, 71a and one removal cover 73 attached to it are unitized, and the other removal table 71, 71a, removal cover 73, follower 69 and connecting shaft (not shown) are provided. Therefore, by adjusting the number of removal bases 71 and removal lids 73 to be connected, it is possible to easily change the required length of coating removal as compared with the conventional example of Patent Document 1. It is possible to cope with this, and the apparatus does not increase in size. Furthermore, if the length of one unit is changed, the force applied to one cutter blade 115, 117 can be changed, so that the force can be adjusted.

そして、各除去台７１、７１ａに取り付く除去蓋７３は、１本の連結軸（図示せず）を介して一体的に連結されると共に、当該連結軸に沿って各除去蓋７３は各々が取り付く除去台７１、７１ａと一体に追従動可能であるから、一度に総ての除去蓋７３の開閉操作が行え、操作性に優れた利点を有する。 The removal lids 73 that are attached to the removal bases 71 and 71a are integrally connected via a single connection shaft (not shown), and the removal lids 73 are attached to each other along the connection shaft. Since the follower can be moved integrally with the removal bases 71 and 71a, all the removal lids 73 can be opened / closed at a time, and the operability is excellent.

また、一対のカッター刃１１５、１１７の後部側の上部角部に、作動ピン１１３の先端が当接する作動用の傾斜辺１１９が設けられているため、作動ピン１１３によるカッター刃１１５、１１７の移動操作がスムーズに行えると共に、２枚のカッター刃１１５、１１７を全く同時に左右から動かせるため、センターのズレが発生せず、光ファイバ４３に左右均等に切り込みを入れられるという効果がある。 Moreover, since the operation | movement inclination side 119 with which the front-end | tip of the operating pin 113 contact | abuts is provided in the upper corner | angular part of the rear part side of a pair of cutter blades 115 and 117, the movement of the cutter blades 115 and 117 by the operating pin 113 Since the operation can be performed smoothly and the two cutter blades 115 and 117 can be moved from the left and right at the same time, there is an effect that a center shift does not occur and the optical fiber 43 can be equally cut to the left and right.

更に、除去蓋７３の支持板１３７に設けたガイド穴１３９に仮保持部１４５を設けたため、除去蓋７３の開閉操作時に作動ピン１１３が上下方向にガタ付くことがなく、作動ピン支持体１４１の操作がし易い利点を有する。 Further, since the temporary holding portion 145 is provided in the guide hole 139 provided in the support plate 137 of the removal lid 73, the operation pin 113 is not rattled in the vertical direction when the removal lid 73 is opened and closed. It has the advantage that it is easy to operate.

更にまた、本実施形態は、正逆両方向に回転可能なモータ３９のモータ軸４７に連結されたボールネジ５１の外周に被覆除去部３７をブラケット５５を介して連結して、当該被覆除去部３７をモータ３９の駆動でガイドレール３５に沿って前後動可能としたため、被覆除去部３７の移動が正確且つスムーズで、精度のよい二次被覆の除去が行える利点を有する。 Furthermore, in the present embodiment, the coating removal unit 37 is connected to the outer periphery of the ball screw 51 connected to the motor shaft 47 of the motor 39 that can rotate in both forward and reverse directions via the bracket 55, and the coating removal unit 37 is connected. Since the motor 39 can be driven to move back and forth along the guide rail 35, there is an advantage that the movement of the coating removing portion 37 is accurate and smooth, and the secondary coating can be accurately removed.

そして、既述したように追従手段６９は、ネジ９５とこの軸部１０１が挿通するネジ挿通穴１０３からなる簡単な構造であるため、コストがかからず、また、除去台７１、７１ａの連結／解除が容易に行える。 As described above, the follow-up means 69 has a simple structure including the screw 95 and the screw insertion hole 103 through which the shaft portion 101 is inserted, so that it does not cost, and the connection of the removal bases 71 and 71a. / Can be easily released.

同様に、光ファイバ４３を押さえる押圧手段４５も、基台３１上に設置された操作レバー１５１と、当該操作レバー１５１の操作で前後動する押圧ステー１５３と、当該押圧ステー１５３の先端の押圧ブラケット１６５が当接する筒状の受部１５５からなる簡単な構造であるため、コストがかからず、また、この押圧手段４５を用いることで二次被覆の除去をスムーズに行える利点を有する。 Similarly, the pressing means 45 for pressing the optical fiber 43 includes an operating lever 151 installed on the base 31, a pressing stay 153 that moves back and forth by the operation of the operating lever 151, and a pressing bracket at the tip of the pressing stay 153. Since it is a simple structure consisting of the cylindrical receiving portion 155 with which the 165 contacts, there is an advantage that the cost is not increased and that the secondary coating can be removed smoothly by using the pressing means 45.

３１基台
３３光ファイバ被覆除去装置
３５ガイドレール
３７被覆除去部
３９モータ
４１モジュール
４３光ファイバ
４５押圧固定手段
５１ボールネジ
５５、６１連結ブラケット
６３ロードセル
６５、６７フォトマイクロセンサ
６９追従手段
７１、７１ａ除去台
７３除去蓋
７５除去台本体
７７脚部
７９凹部
８３円錐凹部
８７ガイド溝
８９鋼球
９１光ファイバ挿入溝
９５ネジ（ネジ部材）
９９、１２９切欠き
１０１軸部
１０３ネジ挿通穴
１０５ネジ首部
１０７カッター刃取付穴（貫通穴）
１０９カッター刃操作穴（貫通穴）
１１１カッター刃取付溝
１１３作動ピン
１１５、１１７カッター刃
１１９傾斜辺
１２１凹部
１２３板バネ（バネ部材）
１２５刃部
１２７隔壁
１２９切欠き
１３１突片
１３３ゴムシート
１３５作動ピン挿通穴
１３７支持板（支持部材）
１３９ガイド穴
１４１作動ピン支持体（支持部材）
１４３支持軸
１４５仮保持部
１４７貫通穴
１５１操作レバー
１５３押圧ステー
１５５受部
１５７ガイド部材
１６３受部の外周
１６５押圧ブラケット
１６７一次被覆
31 Base 33 Optical fiber coating removal device 35 Guide rail 37 Coating removal part 39 Motor 41 Module 43 Optical fiber 45 Press fixing means 51 Ball screw 55, 61 Connection bracket 63 Load cell 65, 67 Photomicrosensor 69 Tracking means 71, 71a Removal table 73 Removal lid 75 Removal base body 77 Leg 79 Recess 83 Conical recess 87 Guide groove 89 Steel ball 91 Optical fiber insertion groove 95 Screw (screw member)
99, 129 Notch 101 Shaft 103 Screw insertion hole 105 Screw neck 107 Cutter blade mounting hole (through hole)
109 Cutter blade operation hole (through hole)
111 Cutter blade mounting groove 113 Actuating pin 115, 117 Cutter blade 119 Inclined side 121 Recessed portion 123 Leaf spring (spring member)
125 Blade portion 127 Bulkhead 129 Notch 131 Projection piece 133 Rubber sheet 135 Operation pin insertion hole 137 Support plate (support member)
139 Guide hole 141 Actuating pin support (support member)
143 Support shaft 145 Temporary holding portion 147 Through hole 151 Operation lever 153 Press stay 155 Receiving portion 157 Guide member 163 Receiving portion outer periphery 165 Press bracket 167 Primary coating

Claims

A sheath removing portion movable along a guide rail installed on the base;
A motor that is installed on a base and moves the covering removal portion along the guide rail;
A pressing and fixing means for holding an optical fiber installed on the base and holding the optical fiber guided from the module disposed on the base to the coating removing unit;
The covering removal unit includes a plurality of removal bases that are sequentially followable along the guide rail by a follower, and
Each of the removal stands comprises a removal lid that can be freely opened and closed,
The removal table is formed with an optical fiber insertion groove along the guide rail and two cutter blade operation holes sandwiching the optical fiber insertion groove on the surface,
Inside, a pair of cutter blades sandwiching the optical fiber insertion groove, and a spring member that urges the cutter blades in a direction that always separates both cutter blades are mounted,
The removal lid is attached so that two operating pins that can be inserted into the cutter blade operation hole are movable in the vertical direction via a support member,
Close the removal lid of each removal stand, and insert the operation pin into the cutter blade operation hole, and the pair of cutter blades are moved by the operation pin to cut the secondary coating of the optical fiber in the optical cable insertion groove. ,
When the motor is driven, one of the most advanced removal bases moves along the guide rail, and the other plurality of removal bases follow the step-by-step through the follow-up means to make a cut. An optical fiber coating removing apparatus that sequentially removes coating from an optical fiber.

2. The optical fiber coating removing apparatus according to claim 1, wherein the removal lids attached to the respective removal stands are integrally connected, and the respective removal lids are movable together with the removal stands attached thereto. .

3. The optical fiber coating according to claim 1, wherein an operation inclined side with which a tip of the operation pin abuts is provided at an upper corner portion on a rear side of the pair of cutter blades. Removal device.

The optical fiber coating removal apparatus according to any one of claims 1 to 3, wherein a temporary holding portion for the operating pin is provided on a support member of the removal lid.

The motor is rotatable in both forward and reverse directions, and the sheath removing portion is connected to the outer periphery of a ball screw connected to the motor shaft of the motor via a connecting member, and is moved forward and backward along the guide rail by driving the motor. The optical fiber coating removing apparatus according to any one of claims 1 to 4, wherein:

The follow-up means includes a screw member screwed to the rear side surface of the removal table, and a screw member insertion hole formed on the other removal table side adjacent to the removal table and through which the shaft portion of the screw member is inserted. The screw member insertion hole is shorter than the shaft portion of the screw member, and the screw neck of the screw member is engaged with the outer peripheral edge of the screw member insertion hole. The optical fiber coating removal apparatus of any one of Claims.

The pressing means includes an operating lever installed on a base, a pressing stay that moves back and forth by the operation of the operating lever, and a receiving portion with which the tip of the pressing stay abuts. The optical fiber coating removal apparatus according to any one of claims 1 to 6, wherein the optical fiber coating removal apparatus is sandwiched and fixed between the tip and the receiving portion.