JP2897673B2 - Wedge type clamp for manipulator method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wedge-type clamp for a manipulator method, which enables a clamp of a distribution line by a manipulator working vehicle.

[0002]

2. Description of the Related Art Conventionally, as an overhead wire operation using a distribution clamping clamp generally used, a wire covering portion is stripped by a predetermined length in a state where the wire is tightened by a drawer, The stripped bare wire portion is housed in the wire guide groove of the clamp body, the wedge body is beaten into a wedge groove provided in the clamp body, and the wire holding body at the end of the wedge body is tightened to the wire, and then the wire stretching machine is used. Is to be removed. In addition, with a manipulator-supporting clamp, it is difficult (impossible) to strike the wedge body. Therefore, as an improvement on this point, a wedge body is pushed in by a pinion rack gear system, 2. Description of the Related Art There is known a clamp having, for example, a gripper.

[0003]

However, the pinion / rack gear type retention clamp requires the pinion gear shaft and the like to be formed by forging, which is troublesome and expensive. Requires precision and is difficult to manufacture. In addition, at present, two types of telephone poles, one for the young and the other for the old, are required, and handling is troublesome from this point.
Although the compression sleeve type is a single type, it is difficult to insert an electric wire through the clamp body and the sleeve.

In view of the above situation, the present invention requires two types, i.e., a younger and an older one, but even if it is a wedge, it is moved and arranged only by rotating the bolt shaft into which the wedge is inserted. An object of the present invention is to provide a wedge-shaped end clamp for a manipulator construction method which has a simple structure for gripping an electric wire and has good operability by a manipulator device.

[0005]

The present invention SUMMARY OF THE INVENTION may, insulator connecting the inverted U-shaped wire receiving groove portion of the inclined cut-type at one end and bitterness <br/> beauty guide groove on one side face positioned disposed and the other end A clamp body provided with a portion, and a wedge-type retention clamp comprising a wedge body inserted between the wire receiving groove portion and the wedge guide groove portion,
A wedge body is provided with a cylindrical operating piece rotatably mounted in an orthogonal cylindrical hole provided in the center, and a screw hole transversely penetrating the cylindrical operating piece.
To, the cross-section disposed in the longitudinal direction inside the wedge it between the long groove hole
That through holes to Nishi挿 long threaded portion of the wedge pull bolt shaft inserted through a flange portion formed at one end of the bolt shaft,
An end screw provided at the tip of a bolt shaft protruding from the end of a wedge guide groove with an engaging streak groove in which the engaging step of the wedge body of the clamp body slides.
Parts in screwed operating nut and a split-type cable pressing of screwing consecutively provided at the rear end of the wedge, the electric wire
The wedge body, which is parallel to the bolt axis when tightened, is
Bare wire clamped between wire receiving part and wire receiving groove of clamp body
It locks a part of the part .

[0006]

[0007]

[0008]

As described above, the long screw portion of the wedge pull-in bolt shaft which is inserted from the outside of the lamp body into the column-shaped operation piece mounted at the center of the wedge body to be installed at the position opposite to the inverted U-shaped wire receiving groove portion of the lamp body. The stripping of the end of the distribution line that has been extended is stripped off by a predetermined length using a stripping tool, and the bare wire is connected to the insulator side. To the wire receiving groove. Here, if the operation nut serving as the bolt head of the wedge pull-in bolt shaft protruding from the end of the clamp body is appropriately turned with a tool, the long screw portion of the bolt shaft is screwed into the columnar operation piece of the wedge body. Since the rotational force of the shaft is regulated by the wedge body of the cylindrical operating piece, it is converted into the amount of retraction of the wedge body itself, the wedge body slides forward, and the bare wire part integrated with the wedge body is clamped. It is tightly sandwiched between the wire receiving grooves of the main body and is fixed by so-called wedge tightening. Thereafter, the rear end of the bare wire portion is tightened to the wire presser provided at the rear end of the wedge body facing the wire receiving groove. In this wedge body, the engagement step portions on both sides at the lower end are guided by the engagement streaks of the wedge guide groove portion, so that the wedge body is slid without sliding.

When the electric wire is detached (disassembled) from the clamp body, the electric wire is kept in a tensionless state by using a drawer. If the bolt head at the shaft end of the wedge pull-in bolt is rotated in the opposite direction, the flange of the bolt comes into contact with the partition wall at the end of the wedge guide groove of the clamp body, thereby restricting the movement of the wedge. Conversely moves backward (retreats), and the wedge is loosened. In other words, even if this retaining clamp uses a wedge body, it can be wedge-tightened and loosened (dismantled) simply by rotating the wedge pull-in bolt shaft inserted through the wedge body, so that operability with the manipulator can be achieved. Improve.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings of the embodiments.

FIG. 1 shows an embodiment of a distribution clamp for a distribution line which can cope with a manipulator method. Reference numeral 1 denotes an inclined U-shaped inverted U-shaped wire receiving groove 2 into which a distribution line is inserted at one end with a predetermined curvature, and a facing position thereof. An integrally formed clamp body having an inclined body 1a provided with a wedge guide groove 3 and a clevis-shaped insulator connecting portion 4 provided at the other end. The wedge guide groove 3 of the clamp body 1 has a rear end. A wedge body 6 having a screw-type split wire holding body 5 screwed on one side is slidably fitted therein. The wedge body 6 has a cylindrical hole 7 perpendicular to the center and a circle serving as a round nut. A screw hole 9 which rotatably mounts the column-shaped operation piece 8 and penetrates through the column-shaped operation piece 8.
And a long threaded portion 11a of a wedge pull-in bolt shaft 11 inserted into a long groove-shaped through-hole portion 10 arranged inside the wedge body 6 in a longitudinal direction, and a flange formed on a shaft portion 11b at one end of the bolt shaft 11. The partition 12 at the end of the wedge guide groove 3
a of the bolt shaft 11 penetrates into the elliptical hole 13 formed in the partition wall 3a, and a hexagon nut through a flat washer 14 in the terminal screw portion 11d. The operation nut 15 is screwed. In this case, the operation nut 15 is fixed so that the end of the end screw portion 11d is not detached by caulking or insertion of a spring pin (not shown), the operation nut 15 is a kind of bolt head, and the length of the bolt shaft 11 is long. The end of the screw portion 11a is also caulked. Further, convex engaging steps 16 protruding from both sides of a wedge inclined surface 6a on the bottom side of the wedge body 6 having a rectangular cross section as a whole are engaged with the engaging grooves of the wedge guide grooves 3 of the clamp body 1. The groove 17 is fitted in the groove 17 so as to be slidable, and the entire structure constitutes a wedge-shaped clamp 18 for a manipulator method. 1
Reference numeral 9 denotes a hook for hooking up a wire stretching machine, which is disposed at an upper end of one end of the clamp body 1.

Next, the operation will be described. First, the wire A for a distribution line, which has been appropriately extended, is wound at a predetermined end by a winding machine (not shown) called a Shimmerer to a predetermined degree of looseness and tension. Keep it in a raised state. Under this condition, electric wire A
Is stripped by a wire stripping tool (not shown) to expose a bare wire portion A 'for a fixed length.

Thereafter, the bare wire portion A 'is inserted into an inverted U-shaped wire receiving groove portion 2 at one end of a clamp body 1 in which an insulator connecting portion 4 is previously connected to an insulator (not shown) on the pole side. It is guided and inserted from the arc-shaped drawn-in portion 2a at the lower end so as to follow.

Here, an operation nut 15 of a bolt shaft 11 protruding from the end of the clamp body 1 which can be screwed into the central column-shaped operation piece 8 in the center of the wedge body 6 housed in the wedge guide groove 3 is provided with an appropriate bolt / nut tool ( If it is turned to the right in (not shown), the columnar operation piece 8 is screw-fed, but since the position of the columnar operation piece 8 is regulated by the wedge body 6,
The screw feeding action of the wedge body 6 itself is converted into a pulling force, and the wedge body 6 moves. In this case, since the columnar operation piece 8 is rotatable with respect to the wedge body 6, the axial direction of the bolt shaft 11, which is parallel to the tightening side, changes with the movement of the angled wedge body 6. Must be
The bolt shaft 11 has a cylindrical operating piece 8 screwed into the wedge body 6.
In order to follow the rotation to the center to some extent (of course, since the shape of the through hole 10 of the wedge body 6 is a long slot, it can cope with the inclination of the bolt shaft 11), the operation nut 15 Does not hinder the rotation operation of the bolt shaft 11
If the axial direction is parallel to the slide surface side, the bolt / nut tool will be too close to the electric wire side and operation will be impossible.) In addition, since the wedge body 6 has the engagement step portions 16 at both lower ends guided by the engagement streaks 17 of the wedge guide groove portion 3, the wedge body 6 slides without wobbling. That is, the wedge body 6 is drawn toward the mouth of the clamp body 1 only by rotating the wedge retraction bolt shaft 11, so that the bare wire portion A 'is gripped by the clamp body 1 by the wedge action.

Here, one side of the bare wire portion A 'is connected to the wire receiving groove portion 2.
The wedge body 6 is fitted in the wedge guide groove 3 and is received by the wire receiving portion 6b of the wedge body 6, and the rear end of the bare wire portion A 'is tightened by the wire holding body 5 provided at the rear end of the wedge body 6. I do. In this case, in the electric wire pressing body 5, a bare wire portion A 'is interposed between the split-type fastening pieces 5a and 5b pivotally connected at one end.
A tightening bolt 21 orthogonally penetrating the upper tightening piece 5b opened by the spring 20 is screwed into the tightening piece 5b, which is a fixed side, and tightened.

In this case, when the electric wire is tightened, the operation nut 15 which becomes the hexagon nut of the bolt shaft 11 and the flat washer 1
4 comes into close contact with the clamp body 1 on the side of the clamp opening, but the disk-shaped flange 12 inside the clamp body 1 on the side of the clamp opening does not adhere and is separated to some extent. The gap should be such that the worst-case tension is applied to the wire after the clamp is connected, and that the wire does not slip out of the clamp even under a large tension that would cause the wire to break beyond the specified gripping force value on a test basis. The wedge body 6 and the electric wire A move together in the clamp body 1 and further tighten the electric wire A, so that a gap necessary for securing a gripping force is provided.

The clamp 18 holding the electric wire is covered with a protective cover (not shown) made of rubber, plastic, or the like having a similar shape as a whole.

Further, after the wiring is once performed, the retention clamp 18
In so-called disassembly for removing the electric wire A, a hook of a cable stretching machine (not shown) is attached to a tightening link of the clamp body 1 or an arm of a pole, and the other grip is attached to the wire A which is being wired. . The wire drawing machine is wound up and the electric wire A is drawn to bring the wedge body 6 of the clamp body 1 into a tensionless state.

Here, the operation nut 15 of the wedge drawing bolt shaft 11 for holding the electric wire is loosened with a bolt and nut tool. When the nut 15 (bolt shaft 11) on the clamp mouth side of the bolt shaft 11 is rotated leftward by a bolt / nut tool, the disc-shaped flange portion 12 of the bolt shaft 11 is rotated.
Is in contact with the inside of the clamp body 1, and further continued rotation pushes up the cylindrical operation piece 8, which becomes a round nut, so that the wedge body 6 is loosened, and the electric wire A (bare wire portion A ′) is Dismantled from 1.

Since the end 11e of the wedge pull-in bolt shaft 11 is prevented from dropping by caulking or a spring, the operation nut 15 stops at a predetermined rotation and the wedge body 6 on which the columnar operation piece 8 is disposed. Does not fall off from the clamp body 1 and can be safely secured.

[0021]

As described above, the wedge-shaped retaining clamp for a manipulator method according to the present invention is characterized in that the inclined U-shaped wire receiving groove at one end is incorporated into a clamp body having an insulator connecting portion at the other end. A rotatable columnar operation piece is orthogonally disposed at the center of the wedge body, and a long screw portion of a wedge pull-in bolt shaft that penetrates the inside of the wedge body in the longitudinal direction is laterally inserted into the operation piece. One end of the wedge body protrudes from the end of the clamp body, and an operation nut is arranged.After the bare wire of the tightened wire is led to the wire receiving groove, the nut at the end of the wedge pull-in bolt of the wedge-shaped cylindrical operating piece is removed. Just turn,
The rotation of the bolt shaft is converted to the sliding movement of the wedge body, and the electric wire is easily wedge-tightened to obtain a gripping force. In this case, since the cylindrical operation piece (round nut) rotates around the operation piece in the wedge body, the bolt axis follows the movement of the wedge body, so that the operation can be performed with a simple screw operation, and the wedge body can be formed. Since the lower end engaging step portion is guided by the engaging streak groove of the wedge guide groove portion, smooth sliding without blur occurs. In addition, the insertion of the wedge body can be performed by a screwdriver operation that does not have a tapping operation, and the electric wire can be retained, so that manipulator (robot) work can be performed. In addition, the wedge pull-in bolt shaft has a flange at one end that comes into contact with the inside of the clamp body, so even when disassembling the clamp, simply turn the operation nut in reverse to ensure that the wedge body retreats and the wedge is tightened. I can solve it. If the operating nut, which is a hexagon nut, and the tightening bolt of the wire retainer at the rear end of the wedge are the same size, the work can be continued without changing the manipulator's bolt and nut tools, which is efficient. . Also, the nut at the rear end of the wedge pull-in bolt shaft is prevented by a caulking or a spring pin to prevent the nut from falling off, and thus the wedge body does not fall.

[Brief description of the drawings]

FIG. 1 is a side view of a wedge-shaped retaining clamp for a manipulator method showing an embodiment of the present invention.

FIG. 2 is a side view of a clamp body.

FIG. 3 is a side view of a wedge body.

FIG. 4 is an explanatory diagram viewed from the rear end of the wedge body.

FIG. 5 is an explanatory diagram viewed from a rear end of a clamp body.

FIG. 6 is an explanatory diagram viewed from the front end of the clamp body.

FIG. 7 is a perspective view in which a columnar operation piece and a wedge retraction bolt shaft are separated.

FIG. 8 is a side view in which an electric wire is gripped by a retaining clamp.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clamp main body 2 Reverse U-shaped electric wire receiving groove part 3 Wedge guide groove part 4 Insulator connection part 5 Wire holding body 6 Wedge body 8 Cylindrical operation piece 10 Through hole part 11 Wedge drawing bolt shaft 12 Flange part 15 Operation nut

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-336639 (JP, A) JP-A-6-319218 (JP, A) JP-A-62-281710 (JP, A) 57230 (JP, U) 60-103216 (JP, U) 60-80334 (JP, U) 63-83928 (JP, U) 61-174826 (JP, U) Japanese Utility Model Showa 63-176322 (JP, U) Japanese Utility Model Showa 38-4962 (JP, Y1) Japanese Utility Model Showa 43-12920 (JP, Y1) Japanese Utility Model Showa 39-12722 (JP, Y1) (58) (Int.Cl. ⁶ , DB name) H02G 7/00-7/22

Claims (1)

(57) [Claims] 1. A one end in an inverted U-shaped wire receiving groove portion of the inclined cut type and a clamp body provided with insulator connecting portion a wedge guide groove disposed on the other end <br/> one side thereof facing position, wherein In a wedge-type clamping device comprising a wedge body inserted between an electric wire receiving groove and a wedge guide groove, a wedge body is provided at a center provided at a center.
A cylindrical operating piece is rotatably mounted in the intersecting cylindrical hole, and a wedge is inserted through a through hole having a cross section disposed inside the longitudinal direction of the wedge and having a long slot in a longitudinal direction of the wedge body. and Nishi挿 long threaded portion of the pull bolt axis, a flange portion formed at one end of the bolt shaft, the clamp body wedge engaging stepped portion of the engagement muscle grooved wedge guide Tadashi Mizobe that slides in While being able to abut on the partition wall, an operation nut is screwed into a terminal thread portion provided at the tip of a bolt shaft projecting from the partition wall,
A screw-type split wire holding body is connected to the rear end of the wedge body, and a bolt shaft is attached to the wire holding body when tightened.
The wedge body's wire receiving part and the clamp body's
A wedge-shaped clamp for manipulator construction, wherein a part of a bare wire portion held by a wire receiving groove is locked .