JP5749603B2 - Wire covering stripping tool - Google Patents
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- JP5749603B2 JP5749603B2 JP2011178832A JP2011178832A JP5749603B2 JP 5749603 B2 JP5749603 B2 JP 5749603B2 JP 2011178832 A JP2011178832 A JP 2011178832A JP 2011178832 A JP2011178832 A JP 2011178832A JP 5749603 B2 JP5749603 B2 JP 5749603B2
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- 210000000078 claw Anatomy 0.000 claims description 62
- 239000011248 coating agent Substances 0.000 claims description 58
- 238000000576 coating method Methods 0.000 claims description 58
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
Description
本発明は、電線の被覆を剥ぎ取る手持ち握り型の電線被覆剥取具に関する。 The present invention relates to a hand-held gripping wire stripping tool for stripping a coating of an electric wire.
電線の被覆を剥ぎ取る装置、工具は、従来から様々なものが考えられている。この中に、電線の軸線周りに本体を回転させながら、被覆を螺旋状に回転させる皮剥ぎ器がある。このような螺旋状に回転させながら被覆を剥ぎ取るタイプの装置、工具によれば、刃先を芯線に対して常に一定の距離に保つことができるので、芯線を傷つける虞が殆どない。 Various devices and tools for stripping the coating of electric wires have been conventionally considered. Among them, there is a peeler that rotates the coating in a spiral manner while rotating the main body around the axis of the electric wire. According to the type of apparatus and tool that peels off the coating while rotating in such a spiral shape, the cutting edge can always be kept at a constant distance from the core wire, so there is almost no risk of damaging the core wire.
しかし、このような回転型の皮剥ぎ器は、所定長さを剥ぎ取るのに、多数回回転させなければならず作業効率が高くない。また、対象となる電線が比較的太く且つ重量があり、回転動作に対しても安定している電線に適しており、筆記具程度の太さの電線には安定せず使い勝手が良くない。このような螺旋状に被覆を剥ぎ取るタイプの皮剥ぎ器は、例えば、特許文献１に開示されている。 However, such a rotary-type peeler must be rotated many times to remove a predetermined length, and the working efficiency is not high. In addition, the target electric wire is relatively thick and heavy, and is suitable for an electric wire that is stable with respect to the rotation operation. The electric wire with a thickness of about a writing instrument is not stable and is not easy to use. For example, Patent Document 1 discloses a type of peeler that peels off the coating in a spiral shape.
一方、電線の軸線に垂直な方向から輪切り状に切れ目を入れ、長手方向に引き抜くことにより被覆を除去する工具も知られている。このタイプの装置、工具によれば、様々な大きさの電線に対応でき、螺旋状に回転させるタイプには難しい、筆記具程度以下の比較的細い配線にも適用可能である。 On the other hand, there is also known a tool for removing a coating by making a cut in a ring shape from a direction perpendicular to the axis of the electric wire and drawing it in the longitudinal direction. According to this type of apparatus and tool, it can be applied to electric wires of various sizes, and can be applied to relatively thin wiring of a writing instrument or less, which is difficult for a type rotating in a spiral.
図１２は、この引き抜きタイプの被覆剥取工具１００の側面図である。この被覆剥取工具１００は、クランプ受け１０２とグリップ１０３とを設けた本体１０１にクランプアーム１０４と操作レバー１０５とが回動自在に取り付けられている。そして、このクランプアーム１０４には、第２スライダー１０６が摺動自在に取り付けられ、クランプ受け１０２側には、第２スライダー１０６と連動するように第１スライダー１０７が取り付けられている。また、両スライダー１０６、１０７の先端にそれぞれ電線被覆剥離用の刃１０８、１０９が内方突設されている。ここで、、第１及び第２スライダー１０６、１０７とクランプアーム１０４とは、リンク機構を介して連結されており、操作レバー１０５の握り操作により、電線の保持、被覆の切断、及び切断された被覆の芯線から引き抜きといった、一連の動作が行われる。 FIG. 12 is a side view of the pull-out type coating stripping tool 100. In the coating stripping tool 100, a clamp arm 104 and an operation lever 105 are rotatably attached to a main body 101 provided with a clamp receiver 102 and a grip 103. A second slider 106 is slidably attached to the clamp arm 104, and a first slider 107 is attached to the clamp receiver 102 side so as to interlock with the second slider 106. Further, blades 108 and 109 for stripping the electric wire coating are provided inwardly projecting at the tips of the sliders 106 and 107, respectively. Here, the first and second sliders 106 and 107 and the clamp arm 104 are connected via a link mechanism, and by holding the operation lever 105, the electric wire is held, the covering is cut, and the cutting is performed. A series of operations such as drawing from the core wire of the coating is performed.
このような構成の被覆剥取工具は、例えば、特許文献２に記載がある。 For example, Patent Document 2 discloses a coating stripping tool having such a configuration.
しかしながら、電線を間に挟んで、対向する方向から刃先を接近させて被覆の輪切りを行う際には、刃毀れなどが一方側に生じていた場合、刃の入り方が均等ではなくなる。そして、このような場合、刃毀れが生じていない他方側のみ、切れ込みが大きくなり、芯線に傷を生じさせる虞がある。 However, when the blade edge is approached from the opposite direction with the electric wire sandwiched between them and the covering is cut, if the blade is bent on one side, the way of inserting the blade is not uniform. In such a case, only the other side where the blade is not sharpened has a large cut and may cause damage to the core wire.
また、芯線の傷の発生を防止するために、芯線に達する直前で刃の切れ込みを規制し、抜き取る場合、輪切りにより弱化部を形成しているとは言え、その弱化部の全体に均等に
力が加わるようにして平行に引き抜く図１２のような構成では、非常に大きな力を要する。
In addition, in order to prevent scratches on the core wire, even if the cutting of the blade is restricted and removed just before reaching the core wire, the weakened portion is formed by round cutting, but the force is applied evenly to the entire weakened portion. In the configuration as shown in FIG. 12 that is pulled out in parallel so as to be applied, a very large force is required.
そして、軸線に沿って真っ直ぐ（平行）に引き抜かず、軸線に対して本体が傾いた状態で引き抜かれる場合、残った被覆を介して刃先から芯線に大きな圧力が加わるので、場合によっては、芯線の撚りが潰れて甘くなってしまい、後の作業効率を低下させてしまう虞がある。 And when it is pulled out in a state where the main body is inclined with respect to the axis without being pulled straight (parallel) along the axis, a large pressure is applied from the blade edge to the core through the remaining coating. There is a possibility that the twist will be crushed and sweetened, and the subsequent work efficiency may be reduced.
そこで、本発明では、芯線の撚りの状態を良好に保持しつつ、芯線への傷の発生を防止し、且つ、少ない力で被覆を剥ぎ取ることができる電線被覆剥取具を提供することを目的とする。 Therefore, the present invention provides an electric wire covering stripper that can prevent the occurrence of scratches on the core wire while maintaining a good twisted state of the core wire, and can strip the coating with a small force. Objective.
上記目的を達成するために、本発明の電線被覆剥取具は、１対の挟持片が相対回動可能に枢着軸にて枢着され、枢着軸を介して一方側に電線を挟持する１対の顎部を有すると共に、他方側に握り動作による力を受ける１対の握り部を有する、手持ち握り型の電線被覆剥取具であって、くさび形に形成されると共に、その傾斜面を回動半径方向に面するように配置され、各々の顎部の先端側から、互いに対向するように突設された１対の外爪部と、１対の外爪部と略同形状に形成されると共に、外爪部の回動半径方向の内側に並設され、且つ、前記外爪部との間で形成される谷部の深さよりも、外爪部との頂点同士の間隔の方が小さくなるように配置された１対の内爪部と、板状に形成され、１対の挟持片のそれぞれから、互いの端縁を突き合わせるように延び、これら端縁同士の接合状態において、電線の芯線の径よりも大きく且つ被覆の外径よりも小さい穴部が形成される切欠きが、それぞれの端縁に形成された１対の輪切り部と、挟持片の少なくとも一方側に設けられ、枢着軸の軸方向に対する電線の位置を規制するガイド部と、ガイド部による電線に対する規制幅の略中央位置に、１対の顎部が閉じた状態で、互いの刃先同士が芯線の径よりも大きく被覆の外径よりも小さくなる間隔で対向するように、１対の挟持片のそれぞれに振り分けて配置された１対の縦切り刃とを備えたことを特徴とする。 In order to achieve the above object, the wire covering stripping tool of the present invention has a pair of holding pieces pivotally mounted on a pivot shaft so as to be relatively rotatable, and the wire is clamped on one side via the pivot shaft. A hand grip type electric wire covering stripping tool having a pair of jaws and a pair of gripping parts receiving the force of a gripping operation on the other side, and is formed in a wedge shape and inclined A pair of outer claw portions arranged so as to face the rotation radius direction and projecting from the front end side of each jaw portion so as to face each other, and substantially the same shape as the pair of outer claw portions The distance between the vertices of the outer claw portion is larger than the depth of the valley portion formed in parallel with the outer claw portion on the inner side in the rotational radial direction of the outer claw portion. A pair of inner claw portions arranged so that one is smaller, and a pair of inner claw portions, which are formed in a plate shape, butt against each other's edge A pair of notches in which holes are formed that are larger than the diameter of the core wire of the electric wire and smaller than the outer diameter of the coating in the joined state between the edges are formed at the respective edges. A pair of jaw portions at a substantially central position of a regulation width with respect to the electric wire by the guide portion, and a guide portion that is provided on at least one side of the sandwiching piece and restricts the position of the electric wire with respect to the axial direction of the pivot shaft A pair of longitudinal cuts arranged in each of the pair of holding pieces so that the blade edges face each other at an interval larger than the diameter of the core wire and smaller than the outer diameter of the coating in a closed state And a blade.
また、本発明の電線被覆剥取具は、上記構成に加えて、外爪部の傾斜面のうち、回動半径方向外側に面する外側傾斜面は、顎部側の基端部側よりも頂点側の方が、回動半径方向内側に傾いていることを特徴とする。 In addition to the above-described configuration, the wire covering stripping tool of the present invention has an outer inclined surface that faces the outer side in the rotational radial direction among the inclined surfaces of the outer claw portion than the proximal end portion side of the jaw portion side. The apex side is inclined inward in the rotational radius direction.
また、本発明の電線被覆剥取具は、上記構成に加えて、切欠きは、穴部の周縁のうち、少なくとも枢着軸側の接合端周辺に丸型の面取り加工が施されていることを特徴とする。 In addition to the above-described configuration, the wire covering stripping tool of the present invention has a notch with a rounded chamfering process at least around the joint end on the pivot shaft side of the periphery of the hole. It is characterized by.
また、本発明の電線被覆剥取具は、上記構成に加えて、１対の縦切り刃は、枢着軸の軸方向に対して垂直に配置され、ガイド部による枢着軸の軸方向の規制幅の中央位置を挟んで僅かに両側へ偏って配置されていることを特徴とする。 In addition to the above-described configuration, the wire covering stripping tool of the present invention has a pair of vertical cutting blades arranged perpendicular to the axial direction of the pivot shaft, and is arranged in the axial direction of the pivot shaft by the guide portion. It is characterized by being arranged slightly biased to both sides across the center position of the regulation width.
以上のように、本発明によれば、外爪部と内爪部との間に挟み込まれた被覆は、外爪部と内爪部との頂点間隔よりも深く谷部に入り込むことができる。また、１対の輪切り部を電線に対して垂直に配置し、それぞれの端縁同士を接合状態にすることにより、電線の被覆にのみ、穴部の端縁が切り込まれ、被覆を輪切りにすることができる。更に、１対の顎部が閉じたとき、電線の被覆厚の範囲内で、１対の縦切り刃の先端が切り込まれる。 As described above, according to the present invention, the covering sandwiched between the outer claw portion and the inner claw portion can enter the valley portion deeper than the vertex interval between the outer claw portion and the inner claw portion. In addition, by arranging a pair of ring-cut portions perpendicular to the electric wire and bringing each end edge into a joined state, the edge of the hole portion is cut only in the electric wire covering, can do. Further, when the pair of jaws are closed, the ends of the pair of vertical cutting blades are cut within the range of the coating thickness of the electric wire.
これにより、外爪部と内爪部とにより形成される谷部に被覆が深く入り込むので、引き剥がし又は捩じり動作に対して被覆（の掴み代）に大きな形状崩れを生じさせることなく良好にグリップさせることが可能となる。また、１対の輪切り部は、電線の被覆にのみ切
れ込みを入れることができるので、芯線に傷を生じさせることを防止することが可能となる。そして、１対の顎部が閉じたとき、ガイド部による規制幅の略中央位置において、１対の縦切り刃が電線の被覆厚の範囲内で切り込まれるので、その状態で電線の長手方向へ本体を相対移動させることにより、被覆の両側に２本の切り込みを形成することが可能となる。
As a result, the coating penetrates deeply into the valley formed by the outer claw portion and the inner claw portion, so that it is good without causing significant deformation in the coating (gripping allowance) against peeling or twisting operation. Can be gripped. Moreover, since a pair of ring cutting part can make a notch only in the coating | cover of an electric wire, it becomes possible to prevent producing a damage | wound in a core wire. When the pair of jaws are closed, the pair of vertical cutting blades are cut within the range of the coating thickness of the wire at the approximate center position of the regulation width by the guide portion. By moving the main body relative to each other, it is possible to form two cuts on both sides of the coating.
以下、本発明に係る実施の形態について、図を用いて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
（第１の実施の形態）
図１に示すのは、本実施の形態における電線被覆剥取具１である。この電線被覆剥取具１は、１対の挟持片２が枢着軸４を中心として、互いに相対回動可能となるように枢着され、握り部８の握り操作によって電線を挟持し、被覆に切れ目を形成することのできる手持ち握り型の工具である。
(First embodiment)
FIG. 1 shows an electric wire covering stripping tool 1 according to the present embodiment. The wire covering stripping tool 1 is pivotally mounted so that a pair of clamping pieces 2 can be rotated relative to each other about a pivoting shaft 4. It is a hand-held tool that can form slits.
本実施の形態の電線被覆剥取具１は、電線の被覆に対して、長手方向に垂直な方向から輪切り状に切れ目を入れた後、その輪切り状の切れ目から長手方向に沿って縦切りの切れ目を入れ、この縦切りの切れ目が形成された範囲の被覆を引き剥がすことにより、所定領域の被覆を除去するものである。 The wire coating stripping tool 1 of the present embodiment cuts a cut in a ring shape from a direction perpendicular to the longitudinal direction with respect to the coating of the electric wire, and then vertically cuts from the cut piece along the longitudinal direction. A cut is made, and the coating in a predetermined area is removed by peeling off the coating in the range where the vertical cut is formed.
ここでは、先ず、この全体を示した図１を参照しながら、順にそれぞれの部分の使用例を図２から４を用いて簡単に説明し、続いて、それぞれの部分の詳細な構造及び作用について、図５から１０を用いて説明する。 Here, with reference to FIG. 1 showing the whole, first, a usage example of each part will be briefly described with reference to FIGS. 2 to 4, and then the detailed structure and operation of each part will be described. This will be described with reference to FIGS.
図２は、図１の枢着軸４に対して握り部８側に設けられた１対の輪切り部１０により、電線２４の被覆２８に輪切り状に切れ目を形成している様子を示している。 FIG. 2 shows a state in which a cut is formed in a ring-like shape in the covering 28 of the electric wire 24 by a pair of ring-cut portions 10 provided on the grip portion 8 side with respect to the pivot shaft 4 of FIG. .
この図２では、電線２４の中間部ではなく、端部の被覆２８を剥ぎ取る場合を例として示している。このように、端部から所定長さの位置を、１対の輪切り部１０で挟持することにより、被覆２８に輪切り状に切れ目が形成される。なお、後に詳細に説明するように、芯線２６に傷が付かないよう、輪切り部１０の端縁には切り欠きが形成されている。 In FIG. 2, the case where the covering 28 at the end portion is peeled off instead of the intermediate portion of the electric wire 24 is shown as an example. In this way, by sandwiching a position having a predetermined length from the end portion by the pair of ring cut portions 10, a cut is formed in the cover 28 in a ring shape. Note that, as will be described in detail later, a cutout is formed in the edge of the circular cut portion 10 so that the core wire 26 is not damaged.
次に、図３は、図１の枢着軸４に対して握り部８とは反対側の、１対の顎部側６に設けられた１対の縦切り刃１２により、電線２４の長手方向に切れ目を形成している様子を示している。 Next, FIG. 3 shows the longitudinal direction of the electric wire 24 by a pair of vertical cutting blades 12 provided on a pair of jaw side 6 opposite to the gripping part 8 with respect to the pivot shaft 4 of FIG. A state in which a cut is formed in the direction is shown.
この１対の縦切り刃１２は、電線２４を間に挟んでそれぞれの刃先を対向させるように配置されている。そして、電線２４を引き抜くことにより電線２４の対極方向から上下同時に長手方向へ切れ目が形成される。 The pair of vertical cutting blades 12 are arranged so that the respective blade edges are opposed to each other with the electric wire 24 interposed therebetween. Then, by pulling out the electric wire 24, a cut is formed in the longitudinal direction simultaneously from the counter electrode direction of the electric wire 24 in the vertical direction.
続いて、図４は、輪切り及び縦切りによる切れ目（図中の斜線を施した部分）が形成された後、剥ぐべき被覆２８の一部を、電線被覆剥取具１の顎部６の先端側に形成された外爪部１６及び内爪部１８により掴み、引き剥がす様子を示している。 Subsequently, FIG. 4 shows a state in which a part of the coating 28 to be peeled off is formed at the distal end of the jaw 6 of the wire coating stripping tool 1 after the cut line (the hatched part in the figure) is formed by the ring cutting and the vertical cutting. A state is shown in which the outer claw portion 16 and the inner claw portion 18 formed on the side are gripped and peeled off.
この図に示されるように、外爪部１６を縦切りにより形成された切れ目に挿入し、内爪部１８を被覆２８の外側面に食い込ませるように把持すると、グリップ状態が良好となる。縦切りにより形成された切れ目は、芯線２６の表面に達する直前位置まで形成されているので、芯線２６に沿って薄く残った被覆２８を引き千切るのに大きな力は要しない。しかし、縦切りの状態によっては被覆２８が厚く残る場合がある。この場合であっても、被覆２８を良好にグリップすることができるので、掴んだ被覆２８の一部が型崩れして把持する力が逃げるというようなことはなく容易に引き千切ることが可能である。また、被覆２８の型崩れを防止することができ、切れ端が残ることを防止できるので、絶縁不良や、無理に取り除くことによる芯線２６への傷の発生を防止することができる。 As shown in this figure, when the outer claw part 16 is inserted into a cut formed by vertical cutting and the inner claw part 18 is gripped so as to bite into the outer surface of the coating 28, the grip state is improved. Since the cut formed by the longitudinal cutting is formed up to a position immediately before reaching the surface of the core wire 26, a large force is not required to tear the coating 28 that remains thin along the core wire 26. However, the coating 28 may remain thick depending on the state of longitudinal cutting. Even in this case, since the covering 28 can be gripped satisfactorily, a part of the grasped covering 28 is not deformed and the gripping force does not escape and can be easily torn. It is. In addition, it is possible to prevent the coating 28 from being deformed and to prevent a broken piece from being left. Therefore, it is possible to prevent defective insulation and damage to the core wire 26 due to excessive removal.
次に、上記の各部分の構成について、図５から１０を用いて詳細に説明する。 Next, the configuration of each part will be described in detail with reference to FIGS.
図５は１対の輪切り部１０と電線２４とをこの電線２４の軸線方向（枢着軸４の軸方向）から見た図である。ここで、二点鎖線で示した部分は、電線２４の中心と輪切り部１０の中心とが一致していない状態を示しており、実線部分は両者が一致している状態を示している。そして、（ａ）は被覆２８に切れ目が形成される前、（ｂ）は被覆２８に切れ目が形成された後の状態を示している。 FIG. 5 is a view of the pair of ring-cut portions 10 and the electric wires 24 as viewed from the axial direction of the electric wires 24 (the axial direction of the pivot shaft 4). Here, the part shown with the dashed-two dotted line has shown the state in which the center of the electric wire 24 and the center of the ring-cut part 10 do not correspond, and the continuous line part has shown the state in which both correspond. (A) shows a state before the cut is formed in the coating 28, and (b) shows a state after the cut is formed in the coating 28.
本実施の形態における電線被覆剥取具１では、輪切り部１０の切欠き１０ｄには、図５（ｂ）のように輪切り部１０が接合されたときに形成される穴部１０ｂの周縁１０ｃのうち、接合端１０ａ（図５（ａ）参照）の周辺に丸型の面取り加工が施されている。これにより、図５（ａ）の二点鎖線で示されたように、電線２４の中心と輪切り部１０の中心とが外れていた場合であっても、この面取り加工された端縁上を滑るように中央側へ案内されて、所定の位置に収めることが可能となる。したがって、電線２４及び輪切り部１０の中心が互いにずれた状態で挟持され、芯線２６に傷が生じることを防止することが可能である。 In the wire sheath stripping tool 1 in the present embodiment, the peripheral edge 10c of the hole 10b formed when the circular cut portion 10 is joined to the notch 10d of the circular cut portion 10 as shown in FIG. 5B. Of these, round chamfering is performed around the joint end 10a (see FIG. 5A). As a result, as shown by the two-dot chain line in FIG. 5A, even if the center of the electric wire 24 and the center of the ring-cut portion 10 are off, they slide on the chamfered edge. Thus, it can be guided to the center side and can be stored in a predetermined position. Accordingly, it is possible to prevent the core wire 26 from being scratched by being pinched while the centers of the electric wire 24 and the ring-cut portion 10 are shifted from each other.
次に、図６は、ガイド部１４周辺を外爪部１６側から見た図である。ここでは、１対の顎部６は閉じた状態となっている。顎部６のそれぞれに固定された縦切り刃１２は、芯線２６の径よりも大きく、被覆２８の外径よりも小さい状態を保持して対向するように配置されている。ガイド部１４による規制幅１４ａは、電線２４の被覆２８の外径よりも僅かに大きく設定されているが、この図６に示した電線２４よりも太い電線に対しては、幅調整板３０をスライドさせることにより規制幅１４ａを広げ、対応させることが可能である。 Next, FIG. 6 is the figure which looked at the guide part 14 periphery from the outer nail | claw part 16 side. Here, the pair of jaws 6 is in a closed state. The vertical cutting blades 12 fixed to each of the jaws 6 are disposed so as to face each other while maintaining a state that is larger than the diameter of the core wire 26 and smaller than the outer diameter of the coating 28. The regulation width 14a by the guide portion 14 is set to be slightly larger than the outer diameter of the coating 28 of the electric wire 24. However, for the electric wire thicker than the electric wire 24 shown in FIG. By sliding, it is possible to expand the regulation width 14a and cope with it.
この幅調整板３０をスライドさせる構造について、図７に示す。図７にて明らかなように、幅調整板３０には長穴３０ａが形成されている。ここで、縦切り刃１２を締結しているボルト１２ａの軸は、この長穴３０ａを貫通して顎部６側に締結されている。これによ
り、幅調整板３０は、長穴３０ａの形成されている長さの範囲内で簡易にスライドさせることが可能であり、太さの異なる電線に容易に対応させることができる。
A structure for sliding the width adjusting plate 30 is shown in FIG. As is apparent from FIG. 7, the width adjusting plate 30 is formed with a long hole 30a. Here, the shaft of the bolt 12a that fastens the vertical cutting blade 12 passes through the long hole 30a and is fastened to the jaw 6 side. Thereby, the width adjusting plate 30 can be easily slid within the range of the length in which the long hole 30a is formed, and can easily correspond to electric wires having different thicknesses.
この場合、それぞれの縦切り刃１２の位置も、枢着軸４の方向に調節可能である。 In this case, the position of each vertical cutting edge 12 can also be adjusted in the direction of the pivot shaft 4.
図８及び図９に、この縦切り刃１２を枢着軸４の軸方向に沿って移動させ、位置調整する構成を示す。 FIG. 8 and FIG. 9 show a configuration in which the vertical cutting blade 12 is moved along the axial direction of the pivot shaft 4 to adjust the position.
図８には、取付座７０及び縦切り刃１２の周辺のみが示されている。図８中、左側に示すように、縦切り刃１２と、この取付座７０との間に予め板状部材７２を介在させておく。そして、上述のように、太い電線の被覆を剥ぐ場合、同図右側に示すように、介装された板状部材７２を取り外す。これにより、枢着軸４の方向へ板状部材７２の板厚分である距離Ｗ１だけ移動させることが可能となる。このような板状部材７２の取り外しにより、図６では、上側の顎部６（図１）に取り付けられた縦切り刃１２が紙面左側へ移動することになる。 FIG. 8 shows only the periphery of the mounting seat 70 and the vertical cutting blade 12. As shown on the left side in FIG. 8, a plate-like member 72 is previously interposed between the vertical cutting blade 12 and the mounting seat 70. And as above-mentioned, when peeling the coating | cover of a thick electric wire, as shown in the figure right side, the interposed plate-shaped member 72 is removed. As a result, it is possible to move in the direction of the pivot shaft 4 by a distance W1 that is the thickness of the plate-like member 72. By removing the plate member 72 as described above, in FIG. 6, the vertical cutting blade 12 attached to the upper jaw 6 (FIG. 1) moves to the left side of the drawing.
図９にも、図８と同様に、取付座７０ａ、７０ｂ及び縦切り刃１２の周辺のみが示されている。図９に示す構成では、予め厚さの異なる２種類の取付座７０ａ、７０ｂを準備しておき、細い電線の場合には、図中左に示した厚い方の取付座７０ａを選択し、また、太い電線が対象となる場合には、図中右に示した薄い方の取付座７０ｂを選択する。左の取付座７０ａから右の取付座７０ｂに交換した場合、縦切り刃１２の位置は、距離Ｗ２だけ顎部６側へ移動する。このような取付座７０ａから取付座７０ｂへの交換により、図６では、上側の顎部６に取り付けられた縦切り刃１２が紙面左側へ移動することになる。 9 also shows only the periphery of the mounting seats 70a and 70b and the vertical cutting blade 12, as in FIG. In the configuration shown in FIG. 9, two types of mounting seats 70a and 70b having different thicknesses are prepared in advance, and in the case of a thin electric wire, the thicker mounting seat 70a shown on the left in the drawing is selected. When a thick electric wire is a target, the thinner mounting seat 70b shown on the right side in the figure is selected. When the left mounting seat 70a is replaced with the right mounting seat 70b, the position of the vertical cutting blade 12 moves toward the jaw 6 by a distance W2. By such exchange from the mounting seat 70a to the mounting seat 70b, in FIG. 6, the vertical cutting blade 12 attached to the upper jaw 6 moves to the left side of the drawing.
ここで、図６に示されているように、１対の縦切り刃１２のそれぞれは、規制幅１４ａの中央位置１４ｂに対して互いに逆側へ僅かに偏って配置されている。図６の状態では、上方の縦切り刃１２は電線２４の中心よりも紙面左側へ、また、下方の縦切り刃１２は電線２４の中心よりも紙面右側へずれている。 Here, as shown in FIG. 6, each of the pair of vertical cutting blades 12 is arranged slightly biased to the opposite side with respect to the center position 14 b of the regulation width 14 a. In the state of FIG. 6, the upper vertical cutting blade 12 is shifted to the left side of the paper from the center of the electric wire 24, and the lower vertical cutting blade 12 is shifted to the right side of the paper from the center of the electric wire 24.
図１に示したように、１対の縦切り刃１２は、何れも、握り部８側へ向かうに連れて互いに遠ざかるように刃先が傾斜している。このため、刃先を被覆２８に突き刺し、電線２４を顎部６側へ引き抜く際、被覆２８に対する切断抵抗を低減させようとする力がそれぞれの縦切り刃１２の刃先へ働き、刃先が被覆２８から浮き上がろうとする。ところが、本実施の形態における縦切り刃１２は、それぞれ、電線２４の中心位置から外れた位置に刃先が差し込まれている。すなわち、中心から更に外れる方向へ相対的に移動すると、刃先の差込み深さが浅く（切断抵抗が小さく）なる。このため、電線２４は、上方の縦切り刃１２からは紙面右方向への力を受け、逆に、下方の縦切り刃１２からは紙面左方向への力を受ける。これにより、上方及び下方の縦切り刃１２のそれぞれの差込み深さ（切断抵抗）のバランスが取れるように、言い換えれば、電線２４が規制幅１４ａの中央位置１４ｂ周辺に常に戻されるように位置の自動修正が働く。 As shown in FIG. 1, the pair of vertical cutting blades 12 have their blade edges inclined so as to move away from each other toward the grip portion 8. For this reason, when the cutting edge is pierced into the covering 28 and the electric wire 24 is pulled out to the jaw 6 side, a force to reduce the cutting resistance against the covering 28 acts on the cutting edge of each vertical cutting edge 12, and the cutting edge comes from the covering 28. Try to float up. However, the cutting edges of the vertical cutting blades 12 in the present embodiment are inserted at positions deviating from the center position of the electric wires 24. That is, when the blade moves relatively away from the center, the insertion depth of the blade edge becomes shallow (cutting resistance is small). For this reason, the electric wire 24 receives a force in the right direction on the paper surface from the upper vertical cutting blade 12, and conversely receives a force in the left direction on the paper surface from the lower vertical cutting blade 12. Thereby, in order to balance each insertion depth (cutting resistance) of the upper and lower vertical cutting blades 12, in other words, the position of the electric wire 24 is always returned around the central position 14b of the regulation width 14a. Automatic correction works.
このように、本実施の形態における１対の縦切り刃１２の構成によると、位置検出や複雑な機構を用いずとも、縦切り刃１２による切れ目を形成しながら電線２４を引き抜くだけで、刃先が常に電線２４の中心近傍位置を捉えることが可能となる。 As described above, according to the configuration of the pair of vertical cutting blades 12 in the present embodiment, the edge of the blade is simply pulled out while forming a cut by the vertical cutting blade 12 without using position detection or a complicated mechanism. Can always grasp the position near the center of the electric wire 24.
次に、図１０は顎部６の先端側の外爪部１６及び内爪部１８の周辺を拡大して示している。この図１０から明らかなように、それぞれくさび形に形成された外爪部１６及び内爪部１８は、互いの頂点同士の間隔Ｄ１よりも谷部１７の深さＤ２の方が大きくなるように形成されている。 Next, FIG. 10 shows an enlarged view of the periphery of the outer claw portion 16 and the inner claw portion 18 on the distal end side of the jaw portion 6. As is clear from FIG. 10, the outer claw portion 16 and the inner claw portion 18 each formed in a wedge shape are such that the depth D2 of the valley portion 17 is larger than the interval D1 between the vertices of each other. Is formed.
これにより、掴んだ被覆２８が谷部１７内へ深く入り込むことができるので、電線２４に対して顎部６の回動半径方向へ力が加わっても、外爪部１６及び内爪部１８から外れにくくなる。 Thereby, since the grasped coating 28 can penetrate deeply into the valley portion 17, even if a force is applied to the electric wire 24 in the rotational radius direction of the jaw portion 6, the outer claw portion 16 and the inner claw portion 18 It becomes difficult to come off.
そして、外爪部１６の外側の傾斜面２０ａ（２０）は、基端部１６ｂ側から頂点１６ａ側に向かって枢着軸４側（回動半径方向内側）へ近付くように傾斜している。 And the inclined surface 20a (20) on the outer side of the outer claw part 16 is inclined so as to approach the pivot shaft 4 side (inward in the turning radius direction) from the base end part 16b side toward the vertex 16a side.
これにより、縦切り刃１２により形成された切れ目に差し込まれた外爪部１６は、その差込み深さが増すに連れて、外側の傾斜面２０ａ（２０）に沿った摺動により頂点１６ａが電線２４の中心から外れる方向に移動する。これにより、挟持するだけで、被覆２８を引き剥がす方向への力が生じるので、引き剥がしが容易になる。 As a result, the outer claw portion 16 inserted into the cut formed by the vertical cutting blade 12 has its apex 16a turned into an electric wire by sliding along the outer inclined surface 20a (20) as its insertion depth increases. It moves in the direction away from the center of 24. As a result, a force in the direction of peeling off the coating 28 is generated only by clamping, and peeling is facilitated.
さらに、外爪部１６は、その突出長さが、内爪部１８の突出長さよりも短くなるように形成されている。図６では、顎部６が閉じられた状態で、内爪部１８の頂点１８ａ同士が当接状態となるのに対して、対向する外爪部１６側には頂点１６ａ同士の間に隙間Ｄ３が形成されている。 Further, the outer claw portion 16 is formed so that the protruding length thereof is shorter than the protruding length of the inner claw portion 18. In FIG. 6, the vertices 18 a of the inner claw portion 18 are in contact with each other with the jaw 6 closed, whereas the gap D 3 is located between the vertices 16 a on the opposite outer claw portion 16 side. Is formed.
これにより、電線２４の中心から遠い側の内爪部１８も、外爪部１６と同程度に被覆２８へ食い込ませることが可能となる。 As a result, the inner claw portion 18 on the side far from the center of the electric wire 24 can also bite into the coating 28 to the same extent as the outer claw portion 16.
（第２の実施の形態）
次に、本発明の第２の実施の形態における電線被覆剥取具について図１１を用いて説明する。図１１は、外爪部及び内爪部の周辺を拡大して示している。なお、これ以外の部分の構成については、第１の実施の形態と同様であるため、ここではそれらの説明を省略する。
(Second Embodiment)
Next, the wire coating stripping tool in the second embodiment of the present invention will be described with reference to FIG. FIG. 11 shows the periphery of the outer claw portion and the inner claw portion in an enlarged manner. Since the configuration of the other parts is the same as that of the first embodiment, the description thereof is omitted here.
本実施の形態における電線被覆剥取具の外爪部５６は、内爪部５８よりも厚肉に形成されている。このため、外爪部５６が縦切り刃１２により形成された切れ目に挿入されたとき、その切れ目が大きく開かれるので、挟持の力が引き剥がしの力として働く。これにより、引き剥がし作業が容易になる。 The outer claw portion 56 of the wire covering stripper in the present embodiment is formed thicker than the inner claw portion 58. For this reason, when the outer claw part 56 is inserted into the cut formed by the vertical cutting blade 12, the cut is opened widely, so that the clamping force acts as a peeling force. This facilitates the peeling work.
また、内爪部５８は、外爪部５６よりも薄肉に形成されているので、切れ目の形成されていない被覆２８の外側面に食い込ませるのに有利である。 Further, since the inner claw portion 58 is formed thinner than the outer claw portion 56, it is advantageous for causing the inner claw portion 58 to bite into the outer surface of the coating 28 where no cut is formed.
このように、本実施の形態における電線被覆剥取具では、第１の実施の形態における効果に加えて、さらに引き剥がしが容易になり、また、掴んだ被覆を良好な状態で保持することが可能となる。 As described above, in the wire coating stripping tool in the present embodiment, in addition to the effects in the first embodiment, the stripping is further facilitated, and the gripped coating can be held in a good state. It becomes possible.
尚、上記各実施の形態において、１対の輪切り部が、枢着軸に対して握り部側に設けられた構成を例として示したが、これに限らず、挟持片上に設置されていれば、１対の顎部側に設けられていても構わない。 In each of the above-described embodiments, the configuration in which the pair of ring-cut portions is provided on the grip portion side with respect to the pivot shaft is shown as an example. However, the present invention is not limited to this. You may be provided in a pair of jaw part side.
また、上記各実施の形態において、１対の縦切り刃及びガイド部が、枢着軸に対して１対の顎部側に設けられた構成を例として示したが、これに限らず、挟持片上に設置されていれば、握り部側に設けられていても構わない。 Further, in each of the above embodiments, the configuration in which the pair of vertical cutting blades and the guide portion are provided on the pair of jaw portions side with respect to the pivot shaft has been described as an example. As long as it is installed on one side, it may be provided on the grip side.
また、上記第１の実施の形態において、１対の輪切り部の切欠き周辺に形成された丸型の面取り部分は、切欠きに対して両側に設けられている必要はなく、少なくとも一方側に形成されていれば良い。 In the first embodiment, the round chamfered portions formed around the notches of the pair of ring cut portions do not need to be provided on both sides with respect to the notches, and at least on one side. It only has to be formed.
また、上記第１の実施の形態において、板状に形成された１対の輪切り部１０は、均一な板厚で形成されている構成、すなわち、その接合端１０ａが刃状ではなく、断面が矩形となるように端縁に面が形成されている例を示した。このように構成すると、仮に接合端１０ａが芯線２６と接触した場合であっても、その芯線２６に傷を生じさせ難いという効果を得ることができる。しかし、これに限らず、接合端１０ａの断面がくさび形、又はテーパー形状となるような刃状に形成されていても構わない。 Further, in the first embodiment, the pair of circular cut portions 10 formed in a plate shape is formed with a uniform plate thickness, that is, the joint end 10a is not blade-shaped and has a cross-section. An example is shown in which a surface is formed on the edge so as to be rectangular. If comprised in this way, even if it is a case where the joining end 10a contacts the core wire 26, the effect that it is hard to produce the damage to the core wire 26 can be acquired. However, the present invention is not limited to this, and the joint end 10a may have a wedge shape or a tapered shape in cross section.
また、上記第１の実施の形態において、１対の縦切り刃１２は、ガイド部１４により電線の動きが規制される規制幅１４ａの中央位置１４ｂに対して、それぞれ、幅方向の両側へ僅かずつ偏って配置された例を図６により示した。しかし、これに限らず、１対の縦切り刃１２が同一平面内に配置されていても構わない。 Further, in the first embodiment, the pair of vertical cutting blades 12 are slightly on both sides in the width direction with respect to the center position 14b of the regulation width 14a where the movement of the electric wire is regulated by the guide portion 14. FIG. 6 shows an example in which they are arranged one by one. However, the present invention is not limited to this, and a pair of vertical cutting blades 12 may be arranged in the same plane.
また、上記第１の実施の形態において、外爪部１６の突出長さは、内爪部１８の突出長さに比べて短く形成されている例を図１０により示した。しかし、これに限らず、くさび形に形成され、且つ、外爪部１６及び内爪部１８の頂点間隔が、これらの谷部１７の深さよりも小さく形成されていれば、外爪部１６の突出長さの方が長くなるように形成されていても、また、同じ突出長さであっても構わない。 Moreover, in the said 1st Embodiment, the protrusion length of the outer nail | claw part 16 was shown by FIG. 10 compared with the protrusion length of the inner nail | claw part 18 with FIG. However, the present invention is not limited to this, and if the outer claw portion 16 and the inner claw portion 18 are formed in a wedge shape and the apex distance between the claw portions 17 is smaller than the depth of the trough portions 17, The protruding length may be longer or the same protruding length may be used.
１ 電線被覆剥取具
２ １対の挟持片
４ 枢着軸
６ １対の顎部
８ １対の握り部
１０ １対の輪切り部
１０ａ 接合端（端縁）
１０ｂ 穴部
１０ｃ 穴部の周縁
１０ｄ 切欠き
１２ １対の縦切り刃
１４ ガイド部
１４ａ 規制幅
１４ｂ 中央位置
１６、５６ １対の外爪部
１７ 谷部
１８、５８ １対の内爪部
１６ａ、１８ａ 頂点
１６ｂ、１８ｂ 基端部
２０ 傾斜面
２０ａ 外側傾斜面
２４ 電線
２６ 芯線
２８ 被覆
1 Wire sheath stripping tool
2 A pair of clamping pieces
4 pivot axis
6 Pair of jaws
8 A pair of grips
10 One pair of ring cutting parts
10a Joint end (edge)
10b hole
10c Perimeter of hole
10d cutout
12 A pair of vertical cutting blades
14 Guide section
14a Regulation width
14b Center position
16, 56 Pair of outer claws
17 Tanibe
18, 58 A pair of inner claws
16a, 18a vertex
16b, 18b Base end
20 Inclined surface
20a Outside inclined surface
24 electric wire
26 core wire
28 Coating
Claims (4)
くさび形に形成されると共に、その傾斜面を回動半径方向に面するように配置され、各々の前記顎部の先端側から、互いに対向するように突設された１対の外爪部と、
前記１対の外爪部と略同形状に形成されると共に、前記外爪部の回動半径方向の内側に並設され、且つ、前記外爪部との間で形成される谷部の深さよりも、前記外爪部との頂点同士の間隔の方が小さくなるように配置された１対の内爪部と、
板状に形成され、１対の前記挟持片のそれぞれから、互いの端縁を突き合わせるように延び、これら端縁同士の接合状態において、前記電線の芯線の径よりも大きく且つ前記被覆の外径よりも小さい穴部が形成される切欠きが、それぞれの前記端縁に形成された１対の輪切り部と、
前記挟持片の少なくとも一方側に設けられ、前記枢着軸の軸方向に対する前記電線の位置を規制するガイド部と、
前記ガイド部による前記電線に対する規制幅の略中央位置に、１対の前記顎部が閉じた状態で、互いの刃先同士が前記芯線の径よりも大きく前記被覆の外径よりも小さくなる間隔で対向するように、１対の前記挟持片のそれぞれに振り分けて配置された１対の縦切り刃とを備えた
ことを特徴とする電線被覆剥取具。 A pair of clamping pieces are pivotally mounted on a pivot shaft so as to be relatively rotatable, and have a pair of jaws that clamp an electric wire on one side via the pivot shaft, and force by a gripping operation on the other side. A hand-held grip-type wire sheath stripper having a pair of grips for receiving,
A pair of outer claw portions that are formed in a wedge shape and are arranged so that the inclined surfaces thereof face in the rotational radial direction, and project from the front end sides of the jaw portions so as to face each other; ,
A depth of a trough that is formed in substantially the same shape as the pair of outer claws, is juxtaposed on the inner side in the rotational radial direction of the outer claws, and is formed between the outer claws. A pair of inner claw portions arranged so that the distance between the vertices with the outer claw portion is smaller than
It is formed in a plate shape, extends from each of the pair of sandwiching pieces so as to abut each other's edges, and is larger than the diameter of the core wire of the electric wire in the joined state between the edges and outside the coating A notch in which a hole portion smaller than the diameter is formed, and a pair of ring cut portions formed on each of the end edges;
A guide portion that is provided on at least one side of the clamping piece and regulates the position of the electric wire with respect to the axial direction of the pivot shaft;
In a state where the pair of jaw portions are closed at a substantially central position of the regulation width with respect to the electric wire by the guide portion, the blade edges of each other are larger than the diameter of the core wire and smaller than the outer diameter of the coating. A wire covering stripping tool comprising: a pair of vertical cutting blades arranged so as to be opposed to each of the pair of clamping pieces.
ことを特徴とする請求項１に記載の電線被覆剥取具。 Of the inclined surfaces of the outer claw portion, the outer inclined surface facing outward in the rotational radius direction is inclined inward in the rotational radial direction on the apex side than the base end side on the jaw side. The wire coating stripping tool according to claim 1.
ことを特徴とする請求項１又は２に記載の電線被覆剥取具。 3. The wire covering stripping according to claim 1, wherein the notch is rounded at the periphery of the hole portion at least around the joint end on the pivot shaft side. Toggle.
ことを特徴とする請求項１から３のいずれか１項に記載の電線被覆剥取具。 The pair of vertical cutting blades are arranged perpendicular to the axial direction of the pivot shaft, and are slightly biased to both sides across the center position of the regulation width of the pivot shaft in the axial direction by the guide portion. It arrange | positions. The electric wire coating stripping tool of any one of Claim 1 to 3 characterized by the above-mentioned.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5841963B2 (en) * | 2013-04-11 | 2016-01-13 | 株式会社ベッセル工業 | Stripper for coated electric wire and cutting blade used therefor |
| CN103618263A (en) * | 2013-12-04 | 2014-03-05 | 国家电网公司 | Cable peeling and cutting tool |
| CN103618264A (en) * | 2013-12-04 | 2014-03-05 | 国家电网公司 | Cable peeling and cutting tool |
| CN103855651B (en) * | 2014-02-28 | 2016-03-23 | 成都大漠石油机械有限公司 | For the cutting clamp of wire protective layer cutting |
| CN104393539B (en) * | 2014-11-11 | 2017-09-08 | 国家电网公司 | A kind of guide colume type self centring flexible cable compound slide |
| WO2016122281A1 (en) * | 2015-01-30 | 2016-08-04 | 라하나 | Cutter and stripper using same |
| CN114899767B (en) * | 2022-06-09 | 2023-06-20 | 江西利明电线电缆有限公司 | Annular cutting type power cable insulating layer removing device |
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| JPS4858475U (en) * | 1971-11-05 | 1973-07-25 | ||
| JPS58108708U (en) * | 1982-01-14 | 1983-07-25 | 昭和電線電纜株式会社 | cable sheath cutter |
| JP2518027Y2 (en) * | 1990-10-22 | 1996-11-20 | 日吉 藤井 | Coated wire stripper |
| JPH0631321U (en) * | 1992-07-31 | 1994-04-22 | 日吉 藤井 | Coated wire stripper |
| JP2002052424A (en) * | 2000-08-10 | 2002-02-19 | Takao Kamimura | Manufacturing method for clamping cutting tool |
| JP3106886U (en) * | 2004-07-29 | 2005-01-27 | 室本鉄工株式会社 | Optical fiber cable processing tool |
| JP2006247074A (en) * | 2005-03-10 | 2006-09-21 | Nagaki Seiki Co Ltd | Manual tool |
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