JP3318443B2 - Power cable terminal connection processing gripper - Google Patents
Power cable terminal connection processing gripperInfo
- Publication number
- JP3318443B2 JP3318443B2 JP17157894A JP17157894A JP3318443B2 JP 3318443 B2 JP3318443 B2 JP 3318443B2 JP 17157894 A JP17157894 A JP 17157894A JP 17157894 A JP17157894 A JP 17157894A JP 3318443 B2 JP3318443 B2 JP 3318443B2
- Authority
- JP
- Japan
- Prior art keywords
- gripping member
- gripping
- concave
- hole
- power cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Processing Of Terminals (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電力ケーブル終端接続
部作業用把持具、更に詳細には電力ケーブル終端接続部
処理作業に於いてストレスコーン挿入時に電力ケーブル
の内部絶縁体層を把持するための工具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gripper for working a power cable terminal connection, and more particularly, to gripping an inner insulator layer of a power cable when a stress cone is inserted in a power cable terminal connection processing operation. Related to tools.
【０００２】[0002]
【従来の技術】電力ケーブル終端接続部においては、図
１に示されるように、電力ケーブル１の外部被覆層２の
はぎ取り、遮蔽銅テープ３のはぎ取り、半導電層４のは
ぎ取りを行ってケーブル導体７を被覆するポリエチレン
製の絶縁体層５を露出させ、この絶縁体層５に対して線
末端から７００ｍｍ乃至９００ｍｍ程度離れた所定位置
にストレスコーン６を挿入設置しなければならない。こ
の設置は、先ず電力ケーブル末端にストレスコーン６を
挿入し、次いでストレスコーン６を絶縁体層５の所定位
置まで移動することによって行われるが、絶縁体層５の
外径に密着した挿入状態が得られるようにその内径が設
計されたストレスコーン６の移動は、潤滑のために絶縁
体層５表面にシリコングリスを塗布して行うのにも拘ら
ず容易ではない。絶縁体層５に対してストレスコーン６
を移動するには、絶縁体層５の任意の加力箇所Ｐ及びス
トレスコーン６の加力箇所Ｑを十分に把持し、両加力箇
所Ｐ，Ｑの間に移動のための応力Ｆを加えなければなら
ない。2. Description of the Related Art As shown in FIG. 1, at a power cable terminal connecting portion, a cable conductor is stripped by stripping an outer coating layer 2 of a power cable 1, stripping a shielding copper tape 3, and stripping a semiconductive layer 4. The insulating layer 5 made of polyethylene for covering the insulating layer 7 must be exposed, and the stress cone 6 must be inserted and installed at a predetermined position about 700 mm to 900 mm away from the end of the wire with respect to the insulating layer 5. This installation is performed by first inserting the stress cone 6 into the end of the power cable, and then moving the stress cone 6 to a predetermined position on the insulator layer 5. The movement of the stress cone 6 whose inner diameter is designed to be obtained is not easy irrespective of applying silicon grease to the surface of the insulator layer 5 for lubrication. Stress cone 6 for insulator layer 5
In order to move, a given stressed point P of the insulator layer 5 and a stressed point Q of the stress cone 6 are sufficiently grasped, and a stress F for movement is applied between the two stressed points P and Q. There must be.
【０００３】ストレスコーン６は長さ方向に沿ってその
半径が変化する外形を有するから、作業者が手で把持し
た場合でも充分な手がかりがあり、応力伝達が容易な加
力箇所Ｑが得られる。しかしながら絶縁体層５は、手が
かりのない一様な半径の外形を有する上に材質が摩擦係
数の少ないポリエチレン製であり、又潤滑剤を塗布する
ことも相俟って滑りやすく、作業者が手で把持した場合
には、ストレスコーン６を移動させるための反力を得る
程度の応力伝達をさせる加力箇所Ｐを得ることは困難で
ある。したがって従来から、絶縁体層５の加力箇所Ｐの
把持はペンチ、プライヤ等の工具を利用することにより
行うのが普通であるが、これらの工具類は、基本的に手
による把持と同様であって、手による保持力を緩めれば
たちまちその把持が解消してしまう不安定且つ不確実な
把持しか行えず、ストレスコーン６移動のための応力を
加えている際に、突然把持が解消して、作業者が怪我を
負ったり、絶縁体層５表面に傷を発生させてしまったり
する欠点を有する。[0003] Since the stress cone 6 has an outer shape whose radius changes along the length direction, there is sufficient clue even when the operator holds the stress cone by hand, and a stressed point Q where stress transmission is easy can be obtained. . However, the insulator layer 5 has a uniform radius profile without clues, is made of polyethylene with a low coefficient of friction, and is slippery due to the application of a lubricant. It is difficult to obtain a stressed point P for transmitting a stress to such an extent that a reaction force for moving the stress cone 6 is obtained. Therefore, conventionally, the gripping of the applied point P of the insulator layer 5 is usually performed by using tools such as pliers, pliers, etc. However, these tools are basically the same as gripping by hand. Therefore, if the holding force by the hand is loosened, the grip is immediately released. Only an unstable and unreliable grip can be performed. When the stress for moving the stress cone 6 is applied, the grip is suddenly released. Therefore, there is a drawback that the worker is injured or the surface of the insulator layer 5 is scratched.
【０００４】[0004]
【発明が解決しようとする課題】本発明が解決しようと
する課題は、前記従来手段の欠点を克服し、把持部分を
傷つけることなく電力ケーブル絶縁体層を確実に且つ継
続的に把持することが可能な電力ケーブル終端接続部作
業用把持具を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to overcome the drawbacks of the above-mentioned conventional means and to reliably and continuously grip the power cable insulator layer without damaging the gripping portion. It is an object of the present invention to provide a possible power cable termination connection work gripper.
【０００５】[0005]
【課題を解決するための手段】前記課題を解決するため
に、本発明は、対向する嵌合凹凸縁が縦通している両側
壁下端縁を底壁によって接続された溝型断面部の外端が
通孔を穿設された端壁によって閉塞されると共に平滑な
頂部を有する多数の凹凸条を円周方向に形成した内側向
きの第１凹円弧状圧着面を該溝型断面部の溝方向と平面
上垂直に位置するように設けた第１把持突起部が該端壁
上部に突設された第１把持部材と、基部両側面に該第１
把持部材の対向する嵌合凹凸縁に嵌合しうる嵌合凹凸縁
を備え又該基部内部には縦通する螺孔が形成されると共
に平滑な頂部を有する多数の凹凸条を円周方向に形成し
た内側向きの第２凹円弧状圧着面を該螺孔と平面上垂直
に位置するように設けた第２把持突起部が該基部外端部
上部に突設された第２把持部材と、一側が把手部とされ
他側が螺子棒部とされた操作桿とよりなり、該第１凹円
弧状圧着面と該第２凹円弧状圧着面とが対向した把持間
隙を形成するように該第１把持部材の嵌合凹凸縁と該第
２把持部材の嵌合凹凸縁とが嵌合され、該第１把持部材
の通孔を通過させた該操作桿の螺子棒部が該第２把持部
材の螺孔に螺合されていることを主な特徴とする。又、
電力ケーブルを中心としてその左右に操作桿を存在させ
るようにするために、前記第２把持部材の螺孔に螺合さ
れた前記操作桿の螺子棒に於ける第２把持部材より外方
に突出した螺子棒部先端部分を、一側に取付螺孔が穿設
され外周が把手部とされた副操作桿に於ける該取付螺孔
に螺合させた点も特徴とする。更に、電力ケーブルを中
心とする左右に操作桿を存在させる形式で、前記第２把
持部材に於ける螺孔を加工がより容易な螺溝のない透孔
とすることを特徴とする態様が包含される。又、前記第
１把持部材及び前記第２把持部材のそれぞれの凹円弧状
圧着面を捻れのない正規の対面位置に保持させるため
に、該第１把持部材の第１把持突起部と該第２把持部材
の第２把持突起部のそれぞれの上部には、該第１把持突
起部及び該第２把持突起部から互違いに対向状に突設す
ると共に相互の平行な側面を近接して前記操作桿の軸線
方向に摺動できる複数の係合舌片が固設されていること
を特徴とする態様が包含される。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an outer end of a groove-shaped cross-section in which lower end edges of both side walls through which opposing concave and convex edges vertically pass are connected by a bottom wall. A first inwardly concave arc-shaped crimping surface which is closed by an end wall provided with a through-hole and has a plurality of concave and convex strips having a smooth top formed in a circumferential direction is formed in a groove direction of the groove-shaped cross section. A first gripping protrusion provided so as to be located vertically on the plane and a first gripping member protruding from an upper portion of the end wall, and a first gripping protrusion provided on both side surfaces of the base.
A plurality of concave / convex strips having a smooth top are formed in the base portion, and a plurality of concave / convex strips are formed in the circumferential direction. A second gripping member having a second inwardly facing second concave arc-shaped crimping surface formed so as to be positioned perpendicularly to the screw hole on a plane, and a second gripping member projecting above the outer end of the base; An operation rod having a handle portion on one side and a screw rod portion on the other side is formed such that the first concave arc-shaped crimping surface and the second concave arc-shaped crimping surface form a gripping gap facing each other. The fitting rugged edge of the first gripping member and the fitting rugged edge of the second gripping member are fitted, and the threaded rod portion of the operation rod that has passed through the through hole of the first gripping member is the second gripping member. The main feature is that it is screwed into the screw hole. or,
In order to allow the operation rods to be present on the left and right of the power cable as a center, the operation rod projects outward from the second gripping member of the screw rod of the operation rod screwed into the screw hole of the second gripping member. It is also characterized in that the leading end portion of the screw rod portion is screwed into the mounting screw hole of the sub-operation rod having a handle portion with a mounting screw hole formed on one side. Further, the present invention includes a mode in which the operation holes are provided on the left and right of the power cable as a center, and the screw holes in the second gripping member are through holes without screw grooves, which are easier to process. Is done. Further, in order to hold the concave arc-shaped crimping surfaces of the first gripping member and the second gripping member at regular facing positions without twisting, a first gripping protrusion of the first gripping member and the second gripping projection are provided. On the upper portion of each of the second gripping projections of the gripping member, the first gripping projection and the second gripping projection are alternately opposed to project from each other, and the mutually parallel side surfaces are brought close to each other to perform the operation. An embodiment characterized in that a plurality of engaging tongue pieces slidable in the axial direction of the rod are fixedly provided.
【０００６】[0006]
【作用】把持具に於ける第１凹円弧状圧着面と第２凹円
弧状圧着面との間に電力ケーブルの所定箇所に於ける絶
縁体層を装着し、操作桿を一方向に回転させると、操作
桿の螺子棒部が第２把持部材の螺孔に係合されているこ
とにより、両凹円弧状圧着面が近接し、やがて電力ケー
ブルの所定箇所に於ける絶縁体層が第１凹円弧状圧着面
と第２凹円弧状圧着面との間に挟着される。挟着状態で
把持具とストレスコーンとの間にストレスコーン移動の
ための応力を加えた場合に、両凹円弧状圧着面には、平
滑な頂部を有する多数の凹凸条が円周方向に形成されて
いるから、電力ケーブル絶縁体層の軸線方向と垂直な方
向に両凹円弧状圧着面に於ける平滑な頂部を有する凹凸
条が接触することになり、電力ケーブル絶縁体層を傷つ
けることなく移動のための応力の反力を伝達するために
充分な把持を行うことができる。そして把持状態の維持
するために人力を連続的に加えた状態を保持するような
操作は必要とせず、操作桿を逆回転させて挟着を緩めな
い限り持続するから、移動のための応力導入時に把持具
を手で保持する必要もなく、足で操作桿を押えて単独の
作業者によって応力導入を行うことができると共に偶発
的に発生する把持の急激な解放等による事故を防止して
作業を進めることができる。The insulating layer at a predetermined position of the power cable is mounted between the first concave arc-shaped crimp surface and the second concave arc-shaped crimp surface of the gripper, and the operation rod is rotated in one direction. And the screw rod portion of the operation rod is engaged with the screw hole of the second gripping member, so that the double-concave arc-shaped crimping surfaces are close to each other, and the insulator layer at a predetermined position of the power cable is eventually changed to the first layer. It is sandwiched between the concave arc-shaped crimp surface and the second concave arc-shaped crimp surface. When stress for moving the stress cone is applied between the gripper and the stress cone in the sandwiched state, a large number of uneven strips having a smooth top are formed in the circumferential direction on the biconcave arc-shaped crimping surface As a result, the uneven strip having a smooth top on the double-concave arc-shaped crimping surface comes into contact in a direction perpendicular to the axial direction of the power cable insulator layer, without damaging the power cable insulator layer. Sufficient gripping can be performed to transmit the reaction force of the stress for movement. In order to maintain the gripping state, there is no need to perform an operation to maintain the state where human power is continuously applied, and the operation is continued unless the operation rod is rotated in the reverse direction to loosen the clamping, so stress is introduced for movement. Sometimes it is not necessary to hold the gripper by hand, stress can be introduced by a single worker by pressing the operating rod with the foot, and work is performed to prevent accidents due to accidental sudden release of gripping etc. Can proceed.
【０００７】電力ケーブルを中心とする左右両側に操作
桿を配置するようにすれば、移動のための応力導入の際
に、把持具の保持動作がより容易となる。この場合に第
２把持部材に於ける螺孔を加工がより簡単な螺溝のない
透孔とすることができる。操作桿の回転によって、第２
把持部材は第１把持部材に対し、それらの下部にそれぞ
れ設けられた嵌合凹凸縁が嵌合した状態で入れ子状に移
動し、それに伴い両者の凹円弧状圧着面は捻れのない正
規の対面位置で近接もしくは離隔移動するが、更に第１
把持突起部及び第２把持突起部から互違いに対向状に係
合舌片が固設されている態様では、これらの係合舌片の
相互の側面が接触しながら摺動状に近接もしくは離隔移
動することにより、第１把持部材及び第２把持部材の上
部に於いても両者の凹円弧状圧着面を正規位置に案内す
る。By arranging the operation rods on the left and right sides of the power cable as a center, it becomes easier to hold the gripper when applying stress for movement. In this case, the threaded hole in the second gripping member can be a threaded grooveless through hole that is easier to process. By rotating the operating rod, the second
The gripping member moves nested with the first gripping member in a state in which the fitting concave and convex edges provided below the first gripping member are fitted, and accordingly, the concave arc-shaped crimping surfaces of the two gripping members are regular facing surfaces without twist. Move close to or away from the position,
In the aspect in which the engaging tongues are fixedly provided alternately and opposingly from the gripping protrusion and the second gripping protrusion, the engaging tongues are slidably approached or separated while the mutual side surfaces are in contact with each other. By moving, even in the upper part of the first gripping member and the second gripping member, both concave arc-shaped crimping surfaces are guided to the normal positions.
【０００８】[0008]
【実施例】本発明の詳細な特徴について、添付図面に記
載された実施例により説明する。図２乃至図４に於い
て、符号１１は金属鋳物等で製造される第１把持部材で
あって、第１把持部材１１は、相対向する嵌合凹凸縁１
２が縦通している両側壁１３，１３下端縁を底壁１４に
よって接続された溝型断面部１５の外端を通孔１６が穿
設された端壁１７によって閉塞され、その端壁１７上部
には、その詳細断面が図５に示されるように、平滑な頂
部１８を有する多数の凹凸条１９を円周方向に形成した
内側向きの第１凹円弧状圧着面２０を溝型断面部１５の
溝方向と平面上垂直に位置するように設けた第１把持突
起部２１が突設されている。更に第１把持突起部２１の
上部中央には、その第１凹円弧状圧着面２０側に向って
平行な側面を有する係合舌片２２が突設されている。第
１把持部材１１に入れ子状に嵌合する第２把持部材２３
は、第１把持部材１１と同様に金属鋳物等で製造され、
その基部２４両側面には第１把持部材１１の対向する嵌
合凹凸縁１２に嵌合し得る嵌合凹凸縁２５を備え、又基
部２４内部には縦通する螺孔２６が螺設されている。そ
して基部外端部上部には、第１凹円弧状圧着面２０と同
様に平滑な頂部１８を有する多数の凹凸条１９を円周方
向に形成した内側向きの第２凹円弧状圧着面２７を螺孔
２６と平面上垂直に位置するように設けた第２把持突起
部２８が突設されている。更に第２把持突起部２８の上
部には、係合舌片２２の幅の間隙をおいて平行な側面を
有する２枚の係合舌片２９が第２凹円弧状圧着面２７側
に向って突設されている。符号３０は金属製の操作桿を
示し、その一側は把手部３１とされ、他側には螺子棒部
３２が延長している。なお図中符号３３は座金を示して
いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed features of the present invention will be described with reference to the embodiments shown in the accompanying drawings. 2 to 4, reference numeral 11 denotes a first gripping member made of a metal casting or the like.
The lower end edges of both side walls 13, 13 vertically passing through are closed by an end wall 17 having a through hole 16 formed at the outer end of a groove-shaped cross-section 15 connected by a bottom wall 14. As shown in FIG. 5 in detail, a first concave arc-shaped crimping face 20 facing inward, in which a number of concave and convex strips 19 having a smooth apex 18 are formed in the circumferential direction, is formed as shown in FIG. A first gripping projection 21 is provided so as to protrude perpendicularly to the groove direction. Further, an engaging tongue piece 22 having a side surface parallel to the first concave arc-shaped crimping surface 20 side is protrudingly provided at the upper center of the first gripping protrusion 21. Second gripping member 23 nested in first gripping member 11
Is manufactured from a metal casting or the like in the same manner as the first holding member 11,
On both sides of the base 24, there is provided a fitting uneven edge 25 which can be fitted to the facing fitting uneven edge 12 of the first gripping member 11, and a screw hole 26 which extends vertically is screwed inside the base 24. I have. On the upper end of the base outer end, there is formed a second concave arc-shaped crimping surface 27 facing inward, in which a number of concave and convex strips 19 having a smooth top 18 are formed in the circumferential direction similarly to the first concave arc-shaped crimping surface 20. A second gripping projection 28 is provided so as to project perpendicularly to the screw hole 26 on a plane. Further, on the upper part of the second gripping projection 28, two engaging tongue pieces 29 having parallel side surfaces with a gap of the width of the engaging tongue piece 22 facing the second concave arc-shaped crimping surface 27 side. It is protruding. Reference numeral 30 denotes a metal operating rod, one side of which is a handle 31, and a screw rod 32 is extended on the other side. Reference numeral 33 in the drawing indicates a washer.
【０００９】図２に示される把持具は、携行時等把持具
が把持作業中でない状態を示している。即ち、第１把持
部材１１の嵌合凹凸縁１２と第２把持部材２３の嵌合凹
凸縁２５とを嵌合して、第１把持部材１１の溝内に第２
把持部材２３の基部２４を入れ子状に嵌入させ、座金３
３を通過させた操作桿３０の螺子棒部３２を第１把持部
材１１の通孔１６に挿通し、操作桿３０の把手部３１を
回転することによって螺子棒部３２を第２把持部材２３
の螺孔２６に螺入させた状態である。電力ケーブルの絶
縁体層を把持させる場合には、第１凹円弧状圧着面２０
とこれに対面する第２凹円弧状圧着面２７とが形成する
空間に、電力ケーブル末端部から電力ケーブル絶縁体層
を挿入し、次いで電力ケーブル絶縁体層の所定位置にお
いて操作桿３０の把手部３１を回転すれば、第１凹円弧
状圧着面２０と第２凹円弧状圧着面２７とが接近して第
１凹円弧状圧着面２０の凹凸条１９及び第２凹円弧状圧
着面２７の凹凸条１９が電力ケーブル絶縁体層に接触
し、次いでこれら凹凸条１９，１９の間に電力ケーブル
絶縁体層が挟着される。The gripping tool shown in FIG. 2 shows a state where the gripping tool is not performing a gripping operation, such as when carrying. That is, the fitting concave / convex edge 12 of the first gripping member 11 and the fitting concave / convex edge 25 of the second gripping member 23 are fitted, and the second concave / convex edge is inserted into the groove of the first gripping member 11.
The base 24 of the gripping member 23 is nested into the
3 is passed through the through-hole 16 of the first gripping member 11 and the handle 31 of the operating rod 30 is rotated, thereby turning the screw rod 32 into the second gripping member 23.
In the screw hole 26 of FIG. When gripping the insulator layer of the power cable, the first concave arc-shaped crimping surface 20 is used.
The power cable insulator layer is inserted from the end of the power cable into the space defined by the second concave arc-shaped crimping face 27 facing the power cable insulator 27, and then the handle portion of the operating rod 30 is provided at a predetermined position of the power cable insulator layer. When the rotating member 31 is rotated, the first concave arc-shaped crimping surface 20 and the second concave arc-shaped crimping surface 27 come close to each other, and the irregularities 19 of the first concave arc-shaped crimping surface 20 and the second concave arc-shaped crimping surface 27 are formed. The ridges 19 contact the power cable insulation layer, and the power cable insulation layer is then sandwiched between the ridges 19, 19.
【００１０】挟着状態で把持具とストレスコーンとの間
にストレスコーン移動のための応力を加えた場合に、両
凹円弧状圧着面２０，２７には、それぞれ平滑な頂部１
８を有する多数の凹凸条１９が円周方向に形成されてい
るから、電力ケーブル絶縁体層の軸線方向と垂直な方向
に両凹円弧状圧着面２０，２７に於ける平滑な頂部１８
を有する凹凸条１９が接触することになり、把持具は、
電力ケーブル絶縁体層を傷つけることなくストレスコー
ン移動のための応力の反力を伝達するために充分な把持
を行うことができる。そして把持状態を維持するため
に、人力を連続的に加えた状態を保持するような操作は
何等必要とせず、操作桿３０を逆回転させて挟着を緩め
ない限り持続するから、ストレスコーン移動のための応
力導入時に把持具を手で保持する必要もなく、足で操作
桿を押えて単独の作業者によって応力導入を行うことが
できると共に、偶発的に発生する把持の急激な解放によ
って作業者が負傷したり、電力ケーブル絶縁体層を傷つ
けたりすることなく作業を進めることができる。[0010] When a stress for moving the stress cone is applied between the gripper and the stress cone in the sandwiched state, the smooth concave tops 1 are respectively applied to the biconcave arc-shaped crimping surfaces 20 and 27.
8 are formed in the circumferential direction, so that the smooth tops 18 at the biconcave arc-shaped crimping surfaces 20, 27 in a direction perpendicular to the axial direction of the power cable insulator layer.
Will come into contact with each other, and the gripper will
Sufficient gripping can be performed to transmit the reaction force of the stress for moving the stress cone without damaging the power cable insulator layer. In order to maintain the gripping state, there is no need to perform any operation for maintaining the state in which human power is continuously applied, and the operation is continued unless the operation rod 30 is rotated in the reverse direction to loosen the pinch. It is not necessary to hold the gripper by hand at the time of stress introduction, the stress can be introduced by a single worker by pressing the operation rod with the foot, and the work is performed by sudden release of the grip which occurs accidentally. The operation can be carried out without injuries or damage to the power cable insulation layer.
【００１１】操作桿３０の回転によって、第２把持部材
２３は第１把持部材１１に対し、それらの下部にそれぞ
れ設けられた嵌合凹凸縁１２，２５が嵌合した状態で入
れ子状に移動し、それに伴い両者の凹円弧状圧着面２
０，２７は捻れのない正規の対面位置で近接もしくは離
隔移動するが、更に第１把持突起部２１及び第２把持突
起部２８から互違いに対向状に係合舌片２２及び係合舌
片２９が固設されているので、これらの係合舌片２２，
２９の相互の側面が接触しながら摺動状に近接もしくは
離隔移動することにより、第１把持部材及び第２把持部
材の上部に於いても両者の凹円弧状圧着面２０，２７を
正規位置に案内する。したがって把持される電力ケーブ
ル絶縁層は、左右捻れた凹円弧状圧着面で挟着されるよ
うなことはなく、電力ケーブル絶縁層に破損を生じるよ
うな内部応力を発生させることはない。The rotation of the operating rod 30 causes the second gripping member 23 to move in a nested manner with the first gripping member 11 in a state where the fitting concave and convex edges 12 and 25 provided below the first gripping member 11 are fitted. And the concave arc-shaped crimping surfaces 2 of the two
Reference numerals 0 and 27 move close to or away from each other at a normal face-to-face position without twist, but further engage the engaging tongue piece 22 and the engaging tongue piece alternately from the first gripping projection 21 and the second gripping projection 28. 29 are fixed, these engaging tongues 22,
When the two side surfaces of the two gripping members 29 move close to or away from each other in a slidable manner while contacting each other, the concave arc-shaped crimping surfaces 20 and 27 of the first and second gripping members are also brought to their normal positions at the upper part. invite. Therefore, the gripped power cable insulating layer is not sandwiched between the left and right twisted concave arc-shaped crimp surfaces, and does not generate internal stress that may cause damage to the power cable insulating layer.
【００１２】ストレスコーン移動時に、電力ケーブルを
中心とする左右両側に操作桿を配置するようにすれば、
移動のための応力導入の際に、把持具の保持動作がより
容易となるが、この目的は、図６に示されるような副操
作桿３５を取付けることにより達成される。即ち、第２
把持部材２３の螺孔２６に螺合された操作桿３０の螺子
棒部３２に於ける第２把持部材２３より外方に突出した
螺子棒部先端部分３４に、一側に取付螺孔３６が穿設さ
れ外周が把手部３７とされた副操作桿３５に於ける取付
螺孔３６をに螺合させて副操作桿３５を取付ける。図中
符号３８は介在される座金を示す。副操作桿３５も操作
桿３０と同様にストレスコーン移動のための応力導入時
にこれを保持することによりその反力を電力ケーブル絶
縁体層に伝達することができる。この実施例は、副操作
桿３５が操作桿３０に対して付加的に取付けられる例で
あって、操作桿３０のみを使用する処理と、副操作桿３
５を操作桿３０に取付けて使用する処理とを混用する現
場で採用する場合に便利である。[0012] When the stress cone is moved, the operation rods may be arranged on the left and right sides centering on the power cable.
When the stress for movement is introduced, the holding operation of the gripper becomes easier, but this object is achieved by attaching the sub-operation rod 35 as shown in FIG. That is, the second
A mounting screw hole 36 is provided on one side of a screw rod portion distal end portion 34 of the operation rod 30 of the operation rod 30 screwed into the screw hole 26 of the grip member 23 and protruding outward from the second grip member 23. The sub-operation rod 35 is attached by screwing a mounting screw hole 36 of the sub-operation rod 35 having a handle portion 37 formed therein. In the drawing, reference numeral 38 denotes an intervening washer. Similar to the operation rod 30, the auxiliary operation rod 35 holds the stress at the time of introducing the stress for moving the stress cone, so that the reaction force can be transmitted to the power cable insulator layer. This embodiment is an example in which the sub operating rod 35 is additionally attached to the operating rod 30. The processing using only the operating rod 30 and the sub operating rod 3
This is convenient when adopting a process in which the process of attaching and using 5 to the operation stick 30 is mixed.
【００１３】電力ケーブルが太径の場合等、副操作桿３
５の使用が必須の場合には、第２把持部材２３に於ける
螺孔２６を、図７に示される第２把持部材２３ａのよう
に螺溝のない単なる透孔３９に変更した実施例を採用す
ることが便利である。この場合に操作桿３０の螺子棒部
３２については、第１把持部材１１の通孔１６を通過さ
せた後に第２把持部材２３ａの透孔３９を通過させ、そ
の螺子棒部先端部分３４を副操作桿３５の取付螺孔３６
に螺合させる。副操作桿３５の把手部３７を押えながら
操作桿３０の把手部３１を一方向に回転させると、螺子
棒部先端部分３４が副操作桿３５の取付螺孔３６内を進
行し、第２把持部材２３ａの基部外端面を副操作桿３５
の一側端が押圧する。したがって第２把持部材２３ａは
第１把持部材１１に対し接近し、それらの凹円弧状圧着
面で電力ケーブル絶縁体層を把持することができる。こ
の実施例の場合には、第２把持部材２３に於ける螺孔２
６を加工がより簡単な螺溝のない透孔３９とすることが
できると共に、副操作桿３５を使用する場合について電
力ケーブル絶縁体層挟着のための操作桿回転操作を簡略
化することができる。For example, when the power cable has a large diameter,
In the case where the use of No. 5 is indispensable, an embodiment in which the screw hole 26 in the second gripping member 23 is changed to a simple through hole 39 without a screw groove like the second gripping member 23a shown in FIG. It is convenient to adopt. In this case, the screw rod portion 32 of the operating rod 30 passes through the through hole 16 of the first gripping member 11 and then passes through the through hole 39 of the second gripping member 23a, and the tip end portion 34 of the screw rod portion is Mounting screw hole 36 for operation stick 35
Screw. When the handle portion 31 of the operation rod 30 is rotated in one direction while pressing the handle portion 37 of the sub operation rod 35, the tip end portion 34 of the screw rod advances in the mounting screw hole 36 of the sub operation rod 35, and the second gripping operation is performed. The outer end surface of the base of the member 23a is
One side end is pressed. Therefore, the second gripping member 23a approaches the first gripping member 11, and can grip the power cable insulator layer with their concave arc-shaped crimp surfaces. In the case of this embodiment, the screw hole 2 in the second gripping member 23
6 can be formed as a through hole 39 having no thread groove, which can be processed more easily, and the operation rod rotating operation for sandwiching the power cable insulator layer can be simplified when the sub-operation rod 35 is used. it can.
【００１４】前記したように、本発明の把持具は、簡単
な構造であって安価に製造できるものであり、又小型で
比較的に軽量であるから携行に便利であり、狭い現場空
間に於いても支障なく作業を進めることができる。As described above, the gripper of the present invention has a simple structure and can be manufactured at a low cost, and is small and relatively lightweight, so that it is convenient to carry and can be used in a small site space. Work can be carried out without any problems.
【００１５】[0015]
【発明の効果】本願の発明は、次のような効果を奏す
る。 Ａ．把持具は、簡単な構造であって安価に製造できるも
のであり、又小型で比較的に軽量であるから携行に便利
であり、狭い現場空間に於いても支障なく作業を進める
ことができる。 Ｂ．電力ケーブル絶縁体層の挟着状態で把持具とストレ
スコーンとの間にストレスコーン移動のための応力を加
えた場合に、第１把持部材及び第２把持部材の両凹円弧
状圧着面には、それぞれ平滑な頂部を有する多数の凹凸
条が円周方向に形成されているから、電力ケーブル絶縁
体層の軸線方向と垂直な方向に両凹円弧状圧着面に於け
る平滑な頂部を有する凹凸条が接触することになり、把
持具は、電力ケーブル絶縁体層を傷つけることなくスト
レスコーン移動のための応力の反力を電力ケーブル絶縁
体層に伝達するために充分な把持を行うことができる。The present invention has the following effects. A. The gripper has a simple structure and can be manufactured at a low cost, and is small and relatively lightweight, so that it is convenient to carry and can work without difficulty even in a small site space. B. When a stress for moving the stress cone is applied between the gripper and the stress cone in a state where the power cable insulator layer is sandwiched, the biconcave arc-shaped crimping surfaces of the first gripping member and the second gripping member are applied. Since a large number of uneven strips each having a smooth top are formed in the circumferential direction, unevenness having a smooth top on the biconcave arc-shaped crimping surface in a direction perpendicular to the axial direction of the power cable insulator layer. The strips come into contact, and the gripper can perform sufficient gripping to transmit the reaction force of the stress for moving the stress cone to the power cable insulator layer without damaging the power cable insulator layer. .
【００１６】Ｃ．把持状態を維持するために、把持力を
連続的に加えた状態を保持するような操作は何等必要と
せず、操作桿を逆回転させて挟着を緩めない限り持続す
るから、偶発的に発生する把持の急激な解放によって、
作業者が負傷したり、電力ケーブル絶縁体層を傷つけた
りすることがない。又ストレスコーン移動のための応力
導入時には把持具を手で保持する必要もなく、足で操作
桿を押えて単独の作業者によって応力導入を行うことが
できる。 Ｄ．第２把持部材は第１把持部材に対し、それらの下部
にそれぞれ設けられた嵌合凹凸縁が嵌合された状態で入
れ子状に移動し、それに伴い両者の凹円弧状圧着面は捻
れのない正規の対面位置で近接もしくは離隔移動するの
で、把持される電力ケーブル絶縁層は、左右に捻れた凹
円弧状圧着面で挟着されるようなことがなく、電力ケー
ブル絶縁層に破損を生じるような内部応力を発生させる
ことがない。C. In order to maintain the grip state, there is no need to perform any operation to maintain the state where the grip force is continuously applied, and it will continue as long as the operation rod is rotated in the reverse direction and the pinching is not loosened, so it happens accidentally The sudden release of the grip
No worker is injured or the power cable insulation layer is not damaged. In addition, it is not necessary to hold the gripper by hand when introducing the stress for moving the stress cone, and the stress can be introduced by a single operator by pressing the operating rod with the foot. D. The second gripping member is nested with respect to the first gripping member in a state where fitting concave and convex edges provided at respective lower portions thereof are fitted, and accordingly, the concave arc-shaped crimping surfaces of both are not twisted. Since the power cable insulating layer moves closer or further away at the regular facing position, the gripped power cable insulating layer does not become pinched by the concave arc-shaped crimping surface twisted to the left and right, and the power cable insulating layer is damaged. No internal stress is generated.
【００１７】Ｅ．第１把持突起部及び第２把持突起部か
ら互違いに対向状に係合舌片が固設されている態様で
は、隣接する係合舌片の相互の側面が接触しながら摺動
状に近接もしくは離隔移動することにより、第１把持部
材及び第２把持部材の上部に於いても両者の凹円弧状圧
着面を正規位置に案内する。したがって把持される電力
ケーブル絶縁層は、左右捻れた凹円弧状圧着面で挟着さ
れるようなことがなく、電力ケーブル絶縁層に破損を生
じるような内部応力を発生させることがない前項記載の
効果を助長する。 Ｆ．副操作桿を付加的に取付ける態様では、電力ケーブ
ルを中心とする左右両側に操作桿と副操作桿がを配置さ
れることになり、ストレスコーン移動のための応力導入
の際に、把持具の保持動作がより容易となる。 Ｇ．副操作桿を必須とし、第２把持部材に螺子棒部の通
過する透孔を穿設した態様では、第２把持部材に於ける
螺溝孔形成加工を不要とし、副操作桿を使用する場合に
ついて電力ケーブル絶縁体層挟着のための操作桿回転操
作を簡略化することができる。E. In an aspect in which the engaging tongues are fixedly provided opposite to each other from the first gripping protrusion and the second gripping protrusion, the adjacent engaging tongues come into sliding contact with each other while the mutual side surfaces contact each other. Alternatively, by moving away from each other, the concave arc-shaped crimping surfaces of both the first holding member and the second holding member are guided to the regular positions. Therefore, the gripped power cable insulating layer is not pinched by the left-right twisted concave arc-shaped crimping surface, and does not generate internal stress that may cause damage to the power cable insulating layer. Promote the effect. F. In the mode in which the auxiliary operation rod is additionally attached, the operation rod and the auxiliary operation rod are arranged on both the left and right sides centering on the power cable. The holding operation becomes easier. G. FIG. In a mode in which the auxiliary operation rod is required and the through hole through which the screw rod portion passes is formed in the second gripping member, the thread groove hole forming process in the second gripping member is unnecessary, and the auxiliary operation rod is used. With regard to (1), the operation of rotating the operating rod for sandwiching the power cable insulator layer can be simplified.
【図１】ストレスコーンが挿入される電力ケーブル終端
部の説明用側面図である。FIG. 1 is an explanatory side view of a power cable terminal portion into which a stress cone is inserted.
【図２】把持具の斜視図である。FIG. 2 is a perspective view of a gripper.
【図３】一部を側面で示した把持具の縦断面図であるFIG. 3 is a longitudinal sectional view of the gripping tool, a part of which is shown in a side view.
【図４】把持具の端部側に於ける側面図である。FIG. 4 is a side view on the end side of the gripper.
【図５】第１又は第２凹円弧状圧着面に於ける凹凸条の
拡大断面図である。FIG. 5 is an enlarged sectional view of an uneven strip on a first or second concave arc-shaped crimping surface.
【図６】副操作桿を取付けた把持具に於ける一部を欠截
断面で示した側面図である。FIG. 6 is a side view showing a part of a gripping tool to which a sub-operation rod is attached in a cut-away cross section.
【図７】第２把持部材の他の実施例を示す縦断面図であ
る。FIG. 7 is a longitudinal sectional view showing another embodiment of the second gripping member.
１１ 第１把持部材 １２ 嵌合
凹凸縁 １３ 側壁 １４ 底壁 １５ 溝型断面部 １６ 通孔 １７ 端壁 １８ 平滑
な頂部 １９ 凹凸条 ２０ 第１
凹円弧状圧着面 ２１ 第１把持突起部 ２２ 係合
舌片 ２３，２３ａ 第２把持部材 ２４ 基部 ２５ 嵌合凹凸縁 ２６ 螺孔 ２７ 第２凹円弧状圧着面 ２８ 第２
把持突起部 ２９ 係合舌片 ３０ 操作
桿 ３１ 把手部 ３２ 螺子
棒部 ３５ 副操作桿 ３６ 取付
螺孔 ３７ 把手部 ３９ 透孔DESCRIPTION OF SYMBOLS 11 1st holding | grip member 12 fitting uneven | corrugated edge 13 side wall 14 bottom wall 15 groove-shaped cross-section 16 through-hole 17 end wall 18 smooth top part 19 uneven | corrugated strip 20 first
Concave arc-shaped crimping surface 21 First gripping protrusion 22 Engagement tongue 23, 23a Second gripping member 24 Base 25 Fitting uneven rim 26 Screw hole 27 Second concave arc-shaped crimping surface 28 Second
Gripping protrusion 29 Engagement tongue piece 30 Operation rod 31 Handle 32 Screw rod 35 Sub-operation rod 36 Mounting screw hole 37 Handle 39 Through hole
Claims (4)
壁下端縁を底壁によって接続された溝型断面部の外端が
通孔を穿設された端壁によって閉塞されると共に平滑な
頂部を有する多数の凹凸条を円周方向に形成した内側向
きの第１凹円弧状圧着面を該溝型断面部の溝方向と平面
上垂直に位置するように設けた第１把持突起部が該端壁
上部に突設された第１把持部材と、基部両側面に該第１
把持部材の対向する嵌合凹凸縁に嵌合しうる嵌合凹凸縁
を備え又該基部内部には縦通する螺孔が形成されると共
に平滑な頂部を有する多数の凹凸条を円周方向に形成し
た内側向きの第２凹円弧状圧着面を該螺孔と平面上垂直
に位置するように設けた第２把持突起部が該基部外端部
上部に突設された第２把持部材と、一側が把手部とされ
他側が螺子棒部とされた操作桿とよりなり、該第１凹円
弧状圧着面と該第２凹円弧状圧着面とが対向した把持間
隙を形成するように該第１把持部材の嵌合凹凸縁と該第
２把持部材の嵌合凹凸縁とが嵌合され、該第１把持部材
の通孔を通過させた該操作桿の螺子棒部が該第２把持部
材の螺孔に螺合されていることを特徴とする電力ケーブ
ル終端接続部処理作業用把持具。An outer end of a groove-shaped cross-section portion connected by a bottom wall to a lower end edge of both side walls through which opposed fitting concave-convex edges vertically pass is closed and smooth by an end wall having a through hole. A first gripping protrusion provided with an inwardly-facing first concave arc-shaped crimping surface having a large number of concave and convex strips having a round top formed in the circumferential direction so as to be positioned perpendicular to the groove direction of the groove-shaped cross-section in a plane. A first holding member protruding from an upper portion of the end wall;
A plurality of concave / convex strips having a smooth top are formed in the base portion, and a plurality of concave / convex strips are formed in the circumferential direction. A second gripping member having a second inwardly facing second concave arc-shaped crimping surface formed so as to be positioned perpendicularly to the screw hole on a plane, and a second gripping member projecting above the outer end of the base; An operation rod having a handle portion on one side and a screw rod portion on the other side is formed such that the first concave arc-shaped crimping surface and the second concave arc-shaped crimping surface form a gripping gap facing each other. The fitting rugged edge of the first gripping member and the fitting rugged edge of the second gripping member are fitted, and the threaded rod portion of the operation rod that has passed through the through hole of the first gripping member is the second gripping member. A power cable terminal connection part processing work gripper, which is screwed into the screw hole of (1).
記操作桿の螺子棒部に於ける第２把持部材より外方に突
出した螺子棒部先端部分を、一側に取付螺孔が穿設され
外周が把手部とされた副操作桿に於ける該取付螺孔に螺
合させたことを特徴とする請求項１記載の電力ケーブル
終端接続部作業用把持具。2. A screw rod portion of the operation rod screwed into the screw hole of the second gripping member, the tip of the screw rod portion protruding outward from the second gripping member being attached to one side with a mounting screw. 2. The power cable terminal connecting part working grip according to claim 1, wherein a hole is formed, and an outer periphery of the grip is screwed into the mounting screw hole of a sub-operation rod having a handle.
壁下端縁を底壁によって接続された溝型断面部の外端が
通孔を穿設された端壁によって閉塞されると共に平滑な
頂部を有する多数の凹凸条を円周方向に形成した内側向
きの第１凹円弧状圧着面を該溝型断面部の溝方向と平面
上垂直に位置するように設けた第１把持突起部が該端壁
上部に突設された第１把持部材と、基部両側面に該第１
把持部材の対向する嵌合凹凸縁に嵌合しうる嵌合凹凸縁
を備え又該基部内部には縦通する透孔が形成されると共
に平滑な頂部を有する多数の凹凸条を円周方向に形成し
た内側向きの第２凹円弧状圧着面を該螺孔と平面上垂直
に位置するように設けた第２把持突起部が該基部外端部
上部に突設された第２把持部材と、一側が把手部とされ
他側が螺子棒部とされた操作桿と、一側に取付螺孔が穿
設され外周が把手部とされた副操作桿とよりなり、該第
１凹円弧状圧着面と該第２凹円弧状圧着面とが対向した
把持間隙を形成するように該第１把持部材の嵌合凹凸縁
と該第２把持部材の嵌合凹凸縁とが嵌合され、該第１把
持部材の通孔及び該第２把持部材の透孔を通過させた該
操作桿の螺子棒部が、該第２把持部材の基部外端面を該
副操作桿の一側端が押圧するように該副操作桿の取付螺
孔に螺合されていることを特徴とする電力ケーブル終端
接続部処理作業用把持具。3. An outer end of a groove-shaped cross-section part connected by a bottom wall to a lower end edge of both side walls through which the opposed fitting concave-convex edge vertically passes is closed and smooth by an end wall having a through hole. A first gripping protrusion provided with an inwardly-facing first concave arc-shaped crimping surface having a large number of concave and convex strips having a round top formed in the circumferential direction so as to be positioned perpendicular to the groove direction of the groove-shaped cross-section in a plane. A first holding member protruding from an upper portion of the end wall;
A plurality of concave / convex strips having a fitting top and a bottom with a fitting through-hole which can be fitted to the opposite fitting projections and recesses of the gripping member, and having a vertically extending through hole formed inside the base and having a smooth top are formed in the circumferential direction. A second gripping member having a second inwardly facing second concave arc-shaped crimping surface formed so as to be positioned perpendicularly to the screw hole on a plane, and a second gripping member projecting above the outer end of the base; An operation rod having a handle portion on one side and a screw rod portion on the other side; and a sub-operation rod having an attachment screw hole formed on one side and a handle portion on the outer side, the first concave arc-shaped crimping surface. The fitting concave / convex edge of the first gripping member and the fitting concave / convex edge of the second gripping member are fitted so as to form a gripping gap where the first concave member and the second concave arc-shaped crimping surface face each other. A threaded rod portion of the operation rod, which has passed through the through hole of the gripping member and the through hole of the second gripping member, has a base outer end surface of the second gripping member on one side end of the sub-operation rod. Power cable sealing end processing tasks grasping tool, characterized in that screwed into the mounting threaded hole of the sub operating rod so as to press.
記第２把持部材の第２把持突起部のそれぞれの上部に
は、該第１把持突起部及び該第２把持突起部から互違い
に対向状に突設すると共に相互の平行な側面を近接して
前記操作桿の軸線方向に摺動できる複数の係合舌片が固
設されていることを特徴とする請求項１乃至３のいずれ
か１項記載の電力ケーブル終端接続部作業用把持具。4. An upper portion of each of the first holding protrusion of the first holding member and the second holding protrusion of the second holding member, the first holding protrusion and the second holding protrusion being mutually opposite. 4. A plurality of engaging tongues which are different from each other and protrude from each other and are slidable in the axial direction of the operation rod in such a manner that their mutually parallel side surfaces are close to each other. The gripping tool for working a power cable terminal connection part according to any one of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17157894A JP3318443B2 (en) | 1994-07-01 | 1994-07-01 | Power cable terminal connection processing gripper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17157894A JP3318443B2 (en) | 1994-07-01 | 1994-07-01 | Power cable terminal connection processing gripper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0819140A JPH0819140A (en) | 1996-01-19 |
| JP3318443B2 true JP3318443B2 (en) | 2002-08-26 |
Family
ID=15925755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17157894A Expired - Fee Related JP3318443B2 (en) | 1994-07-01 | 1994-07-01 | Power cable terminal connection processing gripper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3318443B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2167827T3 (en) * | 1998-10-02 | 2002-05-16 | Oetiker Hans Maschinen | DEVICE FOR DISPOSING, TIGHTENING OR DELAYING A RETAINING ORGAN IN THE FORM OF A RING. |
-
1994
- 1994-07-01 JP JP17157894A patent/JP3318443B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0819140A (en) | 1996-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |