JP6963243B2 - Wire stop clip - Google Patents

Description

The present invention relates to an electric wire stopper clip for sandwiching an electric wire such as a high-voltage overhead electric wire through an insulator on a utility pole arm.

Conventionally, in this type of electric wire stopper clip, a metal support base is fixed on the upper part of the insulator of the arm of the utility pole, and a metal wire stopper clip is fixed on the metal support base, and the electric wire is used by the clip. Was pinched and fixed.

In the structure of the wire stop clip, a metal wire receiving portion is provided on one side of the rectangular support frame, and a metal movable wire receiving portion that can be brought close to the wire receiving portion by screwing into the bolt and rotating the bolt is provided. , The electric wire was sandwiched between the electric wire receiving portion and the movable electric wire receiving portion (Patent Document 1).

Further, needle electrodes are provided inside the electric wire receiving portion and the movable electric wire receiving portion, respectively, and when the electric wire is sandwiched, both needle electrodes are brought into contact with the conductor by breaking the coating from both sides of the electric wire. A grounding circuit that flows into the ground through a varistor was constructed to protect the high-voltage overhead power line from lightning surges caused by lightning strikes.

In such a conventional electric wire stop clip, a pair of semi-arc-shaped pressing arc plates (made of metal) along the outer periphery of the electric wire are provided on both sides of the needle electrode of the electric wire receiving portion, and the movable electric wire receiving portion is provided. A pair of semi-arc-shaped presser arc plates (made of metal) are also provided on both sides of the needle electrode of the wire, and the presser arc plates (made of metal) are provided from both sides of the wire while the wire is sandwiched. (Two places on the electric wire receiving part side and two places on the movable electric wire receiving part side, a total of four places) were configured to sandwich the electric wire (Patent Document 1).

Also, as a similar clip, the stripped wire is fixed to the center of the metal fitting on the insulator with bolts, and a certain range in the left-right direction along the wire on both sides is made of hard metal that covers the upper and lower parts of the wire. A structure that is covered with a cover has been proposed (Patent Document 2).

Jikkenhei 6-7120 Japanese Unexamined Patent Publication No. 2008-181819

By the way, in the apparatus of Patent Document 1, since the pressing arc plate is made of hard metal, when the electric wire is fanned by wind or the like, the electric wire vibrates in a direction orthogonal to the length direction, and the vibration causes the electric wire. There is a problem that the bending stress of the electric wire is concentrated on the contact portion between the electric wire and the pressing arc plate.

Further, in the device of Patent Document 2, the bending stress of the electric wire is concentrated on the tip of the holding metal fitting made of hard metal in response to the vibration caused by the wind pressure of the electric wire, which may accelerate the aged deterioration of the electric wire.

The present invention has been made in view of the above-mentioned conventional problems, and by configuring the electric wire so that it can be gripped by an elastic linear member, even if the electric wire vibrates, the stress on a specific portion of the electric wire is applied. It is an object of the present invention to provide a wire stop clip that can suppress concentration.

In order to achieve the above object, the present invention
First, using a metal rectangular frame as a base, one end is extended upward to form an electric wire receiving portion, and grooves are formed on the left and right side plates of the electric wire receiving portion, respectively, and the electric wire receiving portion has a groove. It is composed of an elastic wire having a shape extending horizontally to the left and right of the electric wire receiving portion and having an upper line portion and an underline portion in which one reciprocates up and down, and a folded portion on each tip side of the upper line portion and the underline portion. The pair of left and right electric wire grips are fixed horizontally to the left and right by each base end portion in a state where the folded portions thereof are outwardly engaged with both the grooves, and the electric wire receiving portion of the base is used. A metal bolt is pierced on the facing surface, and a metal movable electric wire receiving portion is provided in the bolt in a screwed state, and grooves are formed on the left and right side plates of the movable electric wire receiving portion. The movable electric wire receiving portion includes an overlined portion and an underlined portion extending horizontally to the left and right of the movable electric wire receiving portion, and a folded portion on each tip side of the overlined portion and the underlined portion. A pair of left and right movable electric wire gripping portions made of elastic wire having a shape are fixed horizontally to the left and right by each base end portion in a state where the folded portions thereof are outwardly engaged with the grooves. at the left and right in a state of placing the electrodeposition line along the electrical wire gripping unit, the movable wire receiving portion by rotating the bolt by proximity to the wire receiving portion, right and left and right pair of the electrical wire gripping unit by the movable electrical wire gripping unit, the wire clipped in which both sides of the front and rear of the left and right of the electric wires of the wire receiving portion and said movable wire receiving portion of the electric wire is clamped state of being sandwiched for a predetermined length It is composed.

The metal rectangular frame can be configured by, for example, the metal rectangular frame (9). The metal rectangular frame is not limited to a rectangle, but also includes a square and the like. The portion where one reciprocates up and down can be composed of, for example, an overlined portion (20b) and an underlined portion (20c). The folded portion can be composed of, for example, a U-shaped portion (20a) or a diamond-shaped portion (20g). The base end portion of the electric wire grip portion and the movable electric wire grip portion can be a groove engaging portion (21, 21) and an insertion portion (22, 22) of the electric wire grip portion and the movable electric wire grip portion. With this configuration, the front side surface and the rear side side surface of the electric wires on both sides of the electric wire stop clip can be sandwiched by the electric wire gripping portion and the movable electric wire gripping portion made of the elastic wire for a predetermined length, and the electric wire can be held. Even if it vibrates in the front-rear direction, the electric wire gripping portion and the movable electric wire gripping portion can be elastically deformed according to the vibration of the electric wire, and the stress does not concentrate on a specific part of the electric wire holding portion, and the electric wire breaks. , Damage can be suppressed.

Secondly, the electric wire grip portion and the folded portion of the movable electric wire grip portion are formed by the electric wire stopper clip according to the first aspect, which is a U-shaped portion.

By forming the folded portion into a U-shaped portion, the simple shape of the electric wire gripping portion can prevent stress concentration in a specific portion of the electric wire holding portion and prevent breakage or breakage of the electric wire.

Thirdly, the tip of the U-shaped portion of the electric wire grip portion and the movable electric wire grip portion is formed by the electric wire stopper clip according to the second description, wherein a counter portion inclined in a direction away from the electric wire is formed. ..

By providing the reverse portion in the U-shaped portion, the portion reciprocating up and down (upper and lower wire portion) of the electric wire grip portion is brought into close contact with the side surface of the electric wire, whereby the electric wire can be reliably sandwiched.

Fourth, the electric wire gripping portion and the folded portion of the movable electric wire gripping portion are formed by the electric wire stopper clip according to the first aspect, which is a rhombic portion.

By forming the folded portion into a rhombus portion, the center of the electric wire in the axial direction can be aligned with the bent portion at the tip of the rhombus portion, and the electric wire can be more reliably sandwiched.

Fifth, the rhombic portion of the electric wire grip portion and the movable electric wire grip portion includes a pair of bent portions and one tip bent portion, and the pair of bent portions are formed so as to project in the direction of the electric wire. As a result, it is configured by the electric wire stopper clip according to the fourth item, which is configured to wrap the electric wire by the bent portion of the electric wire grip portion and the bent portion of the movable electric wire grip portion.

With this configuration, the center of the electric wire in the axial direction can be aligned with the bent tip portion, and the electric wire can be wrapped by the pair of bent portions. Therefore, in the process of sandwiching the electric wire, the electric wire grips the electric wire. It is possible to prevent the electric wire from coming off and to securely pinch the electric wire.

Sixth, the folded portion of the electric wire grip portion and the movable electric wire grip portion widens the distance between the tip portion of the overlined portion and the tip portion of the underlined portion, and at the same time, the tip portion of the overlined portion and the tip portion of the overlined portion. Bent portions bent in the direction of the electric wire are formed from the tip portion of the underlined portion, and a connecting portion connecting the tips of both the bent portions in the vertical direction is formed. The folded portion is formed in a curved shape along the circumferential direction, whereby the folded portion is formed as a triangular portion having a triangular shape as a whole.

With this configuration, the curved connecting portion of the triangular portion can be aligned along the circumferential direction of the electric wire, and the front side surface and the rear side side surface of the electric wire can be wrapped by the triangular portion, so that the electric wire can be secured. Since the electric wire can be sandwiched between the electric wire gripping portion and the movable electric wire gripping portion made of elastic wire for a predetermined length, stress does not concentrate on a specific part of the electric wire sandwiching portion. , It is possible to prevent breakage and breakage of electric wires.

Seventh, the electric wire grip portion on the left side and the electric wire grip portion on the right side are located at the same level in the horizontal direction with each pair of the upper and lower wire portions positioned in the vertical direction, and the movable portion on the left side. The electric wire gripping portion and the movable electric wire gripping portion on the right side are located at the same level in the horizontal direction with each pair of the upper and lower wire portions positioned in the vertical direction, and the electric wire gripping portions on the left and right of the electric wire receiving portion. The movable wire gripping portions on the left and right of the portion and the movable wire receiving portion are configured by the electric wire stopper clip according to any one of 1 to 6 above, which are provided at the same level position.

With this configuration, in the electric wires on the left and right sides of the electric wire stop clip, each of the left and right arcuate front side surfaces and the left and right rear side surfaces of the electric wire can be sandwiched by a pair of left and right vertical line portions. , The electric wires on both the left and right sides of the electric wire stop clip can be stably sandwiched, and the concentration of stress on a specific portion of the sandwiched portion can be suppressed.

Eighth, the first needle electrode is fixed to the electric wire receiving portion between the left and right side plates in a conductive state, and the second needle electrode is fixed to the movable electric wire receiving portion between the left and right side plates in a conductive state. The wire stopper clip according to any one of 1 to 7 above, wherein both the first and second needle electrodes break through the coating of the wire and come into contact with the conductor in the sandwiched state of the wire. ..

The first needle electrode can be a needle electrode (15), and the second needle electrode can be a needle electrode (27). With this configuration, by gripping the electric wire, the needle electrode can be electrically conducted to the conductor of the electric wire at the same time, and a discharge route at the time of a lightning strike or the like can be easily configured. Further, since the electric wire can be gripped by the electric wire gripping portion and the movable electric wire gripping portion over the predetermined lengths of the electric wires on the left and right of the needle electrode, it is possible to prevent the stress concentration of the electric wire in the vicinity of the needle electrode and discharge the electric wire stop clip. The function is not impaired.

9. The movable electric wire grip portion is any one of the above 1 to 8 in which each of the folded portions is inclined in the direction of the electric wire receiving portion from each of the base end portions in order to apply an urging force in the forward direction to the electric wire. Consists of the wire stopper clip described in.

With this configuration, when the wires are sandwiched between the left and right wire grips and the left and right movable wire grips, the front and rear sides of the wires are facing backward by the elastic wires of the left and right wire grips. The urging force and the forward urging force due to the elastic wire of the left and right movable front grips are always acting, and the wire can be securely pinched on both the left and right sides of the wire stop clip, thereby gripping the wire. Since the portion and the movable electric wire grip portion are in close contact with the electric wire and can follow the vibration of the electric wire, the bending stress on the electric wire can be evenly distributed.

Tenth, a pair of horizontal mounting plates are provided in the lateral horizontal direction from the left and right side plates of the metal rectangular frame, and the electric wires arranged along the left and right electric wire grip portions are the pair of horizontal mounting plates. The first needle electrode on the wire receiving portion side is provided with a divergent tapered portion toward the rear side so as to be mounted on the mounting plate, and the second needle electrode on the movable wire receiving portion side. Is provided with a divergent tapered portion toward the front side, and the tapered portion of the first needle electrode and the tapered portion of the second needle electrode scoop up the electric wire mounted on the horizontal mounting plate. It is composed of the electric wire stopper clip according to the eighth item, wherein the electric wire is centered.

The divergent tapered portion toward the rear side of the first needle electrode means the tapered portion (15d, 15d'). The divergent tapered portion toward the front side of the second needle electrode means the tapered portion (27c, 27c'). With this configuration, when the electric wire is placed on the horizontal mounting portion, the electric wire can be scooped up and centered by the first and second needle electrodes when the movable electric wire grip portion is brought close to the electric wire grip portion. .. Further, when the electric wire moves in the vertical direction or the like at a position where the electric wire protrudes from the electric wire receiving portion and the movable electric wire receiving portion in the left-right direction, the electric wire grip portion and the movable electric wire grip portion move in the vertical direction along the electric wire due to its elasticity. Even when the electric wire at the position protruding from the electric wire receiving part and the movable electric wire receiving part in the left-right direction moves in the vertical direction, the electric wire gripping part and the movable electric wire gripping part move along with the movement of the electric wire. Since it is possible, the electric wire can be gripped more effectively, and the concentration of stress can be effectively prevented.

Eleventh, the electric wire according to any one of the above 1 to 10, wherein the metal rectangular frame is fixed to the upper surface of a metal support base fixed on an insulator provided on the arm of a utility pole. It consists of a stop clip.

The metal support base can be configured by, for example, the upper metal fitting (5). With this configuration, the wire stop clips of the present invention are provided on a plurality of utility poles, and the wires are held by the wire stop clips, so that damage or breakage of the wires can be suppressed as much as possible due to wind vibration or the like. can.

Twelvely, in the pinched state of the electric wire, the metal rectangular frame and the ground are grounded via a power varistor.

With this configuration, the high-voltage overhead power line can be protected from lightning surges such as lightning strikes.

As described above, in the present invention, the front side surface and the rear side side surface of the electric wires on both sides of the electric wire stop clip can be sandwiched by the electric wire gripping portion and the movable electric wire gripping portion made of the elastic wire for a predetermined length. Even if the electric wire vibrates in the front-rear direction or the like, the electric wire grip portion and the movable electric wire grip portion can be elastically deformed according to the vibration of the electric wire, and stress does not concentrate on a specific part of the electric wire holding portion. It is possible to prevent breakage and breakage of electric wires.

In addition, by forming the folded portion into a U-shaped portion, the simple shape of the electric wire gripping portion can prevent stress concentration in a specific part of the electric wire holding portion and prevent breakage or breakage of the electric wire. can.

Further, by providing the reverse portion in the U-shaped portion, the portion reciprocating up and down (upper and lower wire portion) of the electric wire grip portion is brought into close contact with the side surface of the electric wire, whereby the electric wire can be reliably sandwiched.

Further, the center of the electric wire in the axial direction can be aligned with the bent tip of the rhombus portion, and the electric wire can be more reliably sandwiched.

Further, by forming the folded portion into a diamond-shaped portion, the center of the electric wire in the axial direction can be aligned with the bent end portion, and the electric wire can be wrapped by the pair of bent portions. Can be prevented from coming off from the wire gripping portion, and the wire can be securely pinched.

In addition, the curved connecting portion of the triangular portion can be aligned along the circumferential direction of the electric wire, and the front side surface and the rear side side surface of the electric wire can be wrapped by the triangular portion, so that the electric wire can be securely sandwiched. In addition, since the electric wire can be sandwiched over a predetermined length by the electric wire gripping portion and the movable electric wire gripping portion made of elastic wire, stress does not concentrate on a specific part of the electric wire sandwiching portion, and the electric wire is broken. , Damage can be suppressed.

Further, in the electric wires on both the left and right sides of the electric wire stop clip, each of the left and right arcuate front side surfaces and the left and right rear side surfaces of the electric wire can be sandwiched by a pair of left and right upper and lower wire portions. It is possible to stably pinch the electric wires on both the left and right sides of the above, and it is possible to prevent stress from concentrating on a specific portion of the pinching portion.

Further, by gripping the electric wire with the electric wire gripping portion and the movable electric wire gripping portion, the needle electrode can be electrically conducted to the conductor of the electric wire at the same time, and the grounding route at the time of a lightning strike can be easily configured. Further, since the electric wire can be gripped by the electric wire gripping portion and the movable electric wire gripping portion over the predetermined lengths of the electric wires on the left and right of the needle electrode, it is possible to prevent the stress concentration of the electric wire in the vicinity of the needle electrode and discharge the electric wire stop clip. The function is not impaired.

Further, in a state where the electric wire is sandwiched between the left and right electric wire gripping portions and the left and right movable electric wire gripping portions, the front side surface and the rear side side surface of the electric wire are provided with a rearward urging force by the elastic wires of the left and right electric wire gripping portions. The forward urging force of the elastic wire of the left and right movable front grips is always acting, and both wire grips are in close contact with the wire on both the left and right sides of the wire stop clip, and the bending stress on the wire is dispersed. , The electric wire can be held securely.

Further, when the electric wire is placed on the horizontal mounting portion, the electric wire can be scooped up by the first and second needle electrodes and centered when the movable electric wire grip portion is brought close to the electric wire grip portion. Further, when the electric wire moves in the vertical direction or the like at a position where the electric wire protrudes from the electric wire receiving portion and the movable electric wire receiving portion in the left-right direction, the electric wire grip portion and the movable electric wire grip portion move in the vertical direction along the electric wire due to its elasticity. Even when the electric wire at the position protruding from the electric wire receiving part and the movable electric wire receiving part in the left-right direction moves in the vertical direction, the electric wire gripping part and the movable electric wire gripping part move along with the movement of the electric wire. Since it is possible, the electric wire can be gripped more effectively, and the concentration of stress can be effectively prevented.

Further, by providing the electric wire stop clip of the present invention on a plurality of utility poles and holding the electric wire by the electric wire stop clip, it is possible to suppress the breakage or breakage of the electric wire as much as possible due to the vibration of the wind or the like.

In addition, the high-voltage overhead power line can be protected from lightning surges such as lightning strikes.

It is a top view of the electric wire stop clip (1st Embodiment) which concerns on this invention. It is a vertical sectional view of the same clip (X1-X1 line sectional view of FIG. 1). It is a vertical cross-sectional view of the state where the electric wire is gripped by the same clip. It is a top view of the state where the electric wire is gripped by the same clip. It is a front view of the state where the electric wire is gripped by the same clip. It is a rear view of the state where the electric wire is gripped by the same clip. (A) is a vertical cross-sectional view including a groove in the vicinity of the electric wire receiving portion in which the small diameter electric wire is gripped by the same clip, and (b) is the vicinity of the electric wire receiving portion in which the large diameter electric wire is gripped by the same clip. It is a vertical sectional view including a groove. It is an exploded perspective view of the metal rectangular frame of the same clip and the mounting bracket. It is a figure which shows the electric wire grip part of the same clip, (a) is a front view, (b) is a plan view, (c) is a side view. It is the figure which looked at the electric wire in the state which held the electric wire by the clip with the same above, as seen from the axial direction. It is explanatory drawing of the state which fixed the clip to the arm metal of the electric pole. It is a front view of the state where the clip is fixed on the insulator and the electric wire is gripped. (A) is an explanatory view showing an electric wire between utility poles in a state where the electric wire is gripped by the same clip, and (b) is a plan view of (a) and is an explanatory view showing a state of vibration of the electric wire. It is a figure which shows the electric wire grip part of the 2nd Embodiment of the said clip, (a) is a front view, (b) is a plan view, (c) is a side view. It is a top view of the same clip (second embodiment). It is a vertical sectional view of the same clip (second embodiment) (X2-X2 line sectional view of FIG. 15). It is a vertical cross-sectional view of a state in which an electric wire is gripped by the same clip (second embodiment). It is a top view of the state where the electric wire is gripped by the same clip (second embodiment). It is a front view of the state in which the electric wire is gripped by the same clip (second embodiment). It is a rear view of the state in which the electric wire is gripped by the same clip (second embodiment). (A) is a vertical cross-sectional view including a groove in the vicinity of the electric wire receiving portion in a state where the small-diameter electric wire is gripped by the same clip (second embodiment), and (b) is the large-diameter electric wire being gripped by the same clip. A vertical cross-sectional view including a groove in the vicinity of the electric wire receiving portion in the state, (c) is a vertical cross-sectional view including a groove in the vicinity of the electric wire receiving portion in a state where a larger diameter electric wire is gripped by the same clip. The movable wire receiving portion side is omitted. It is the figure which looked at the electric wire in the state which held the electric wire by the same clip (the second embodiment) from the axial direction. (A) is a perspective view showing the relationship between one electric wire grip portion and the electric wire in a state where the electric wire is gripped by the electric wire grip portion of the first embodiment, and (b) is the electric wire grip portion of the second embodiment. It is a perspective view which shows the relationship between one electric wire gripping part and the electric wire in the state of holding the electric wire in. It is a figure which shows the electric wire grip part (third embodiment) of the said clip, (a) is a front view, (b) is a plan view, (c) is a side view. (A) is a plan view of the same clip, and (b) is a vertical sectional view of the same clip (X3-X3 line sectional view of FIG. 25 (a)). (A) is a plan view of a state in which an electric wire is gripped by the same clip, and (b) is a vertical sectional view of the same clip (X4-X4 line sectional view of FIG. 26 (a)). (A) is a front view in a state where the electric wire is gripped by the same clip, and (b) is a rear view in a state where the electric wire is gripped by the same clip. It is a figure which shows the electric wire grip part (fourth embodiment) of the same clip, (a) is a front view, (b) is a plan view, (c) is a side view. (A) is a plan view of the same clip, and (b) is a vertical cross-sectional view of the same clip (X5-X5 line sectional view of FIG. 29 (a)). (A) is a plan view of a state in which an electric wire is gripped by the same clip, and (b) is a vertical sectional view of the same clip (X6-X6 line sectional view of FIG. 30 (a)). (A) is a front view in a state where the electric wire is gripped by the same clip, and (b) is a rear view in a state where the electric wire is gripped by the same clip. It is a figure which shows the electric wire grip part (fifth embodiment) of the said clip, (a) is a front view, (b) is a plan view, (c) is a side view. It is a figure which shows the electric wire grip part (sixth embodiment) of the said clip, (a) is a front view, (b) is a plan view, (c) is a side view. It is a front view of the state where the electric wire is gripped by the electric wire gripping part (7th Embodiment) of the same clip. (A) is a perspective view showing the relationship between one electric wire gripping portion and the electric wire in a state where the electric wire is gripped by the electric wire gripping portion of the third embodiment, and (b) is the electric wire gripping portion of the fourth embodiment. It is a perspective view which shows the relationship between one electric wire gripping part and the electric wire in the state of holding the electric wire in. (A) is a perspective view showing the relationship between one electric wire grip portion and the electric wire in a state where the electric wire is gripped by the electric wire grip portion of the sixth embodiment, and (b) is the electric wire grip portion of the fifth embodiment. It is a perspective view which shows the relationship between one electric wire gripping part and the electric wire in the state of holding the electric wire in.

Hereinafter, the electric wire stopper clip according to the present invention will be described in detail.

As shown in FIG. 11, in the electric wire stopper clip 1 according to the present invention, the upper metal fitting 5 and the lower metal fitting 4 are fixed in advance on the arm metal 3 of the utility pole (including the iron tower, the iron pillar, the concrete pillar, the wooden pillar, etc.) 2. The insulator 6 is fixed with bolts and nuts 7, and the electric wire stopper clip 1 according to the present invention is fixed on the upper metal fitting 5, and the overhead electric wire E (high-voltage electric wire, low-voltage electric wire) is fixed by the electric wire stopper clip 1. Etc., hereinafter simply referred to as "electric wire E").
(First Embodiment)

As shown in FIG. 8, the lower surface of the bottom plate 8a of the metal mounting bracket 8 having an upward U-shape is fixed to the upper surface of the upper bracket 5 by welding, for example, and the upper side of the mounting bracket 8 is formed. The metal rectangular frame 9 having the upper and lower openings is coated so that the front side standing plate 8b and the rear side standing plate 8c of the mounting bracket 8 are inside the front plate 9a and the rear surface plate 9b of the metal rectangular frame 9. (See arrow A in FIG. 8).

Bolt holes 10 and 10 are formed through the front side upright plate 8b and the rear side upright plate 8c of the mounting bracket 8 at the same level position in the horizontal direction. On the other hand, bolt holes 11 and 11 are formed through the front plate 9a and the rear surface plate 9b of the metal rectangular frame 9 at the same level in the horizontal direction, and the mounting bracket 8 is covered with the metal rectangular frame 9. When this is done, the centers of the bolt holes 11, 11 and 10, 10 can be located on the same central axis P (see FIG. 1).

The metal rectangular frame 9 is composed of a rectangular upper and lower opening frame that is long in the front-rear direction, and includes an adjacent corner portion that includes the front plate 9a on the front side based on the metal rectangular frame 9. By extending one end portion having a U-shaped cross section upward, a wire receiving portion 12 having a U-shaped cross section is formed (see FIGS. 1, 2, and 8).

In addition, in FIGS. 1 and 8 (the same applies to other figures), in the metal rectangular frame 9, the side where the electric wire receiving portion 12 is formed is "front", and the side where the electric wire receiving portion 12 is not formed is the side. "Back", left and right when facing "back" from "front" (outward left and right), and "up and down" when facing "front" to "back" Is defined.

As shown in FIGS. 1, 2, and 8, the electric wire receiving portion 12 includes the front plate 9a and the rear surface plate 9b in which the bolt holes 11 are formed downward, and the left side plate 9c and the right side plate 9d. It is composed of.

Left and right side plates 12a and 12b parallel to each other are formed backward on both end edges of the electric wire receiving portion 12, and the lower ends of the left and right side plates 12a and 12b are integrated with the upper edges of the left and right side plates 9c and 9d. (See Fig. 2).

The left and right side plates 12a and 12b are for receiving electric wires in which the upper and lower wire portions 20b and the underline portions 20c of the left and right electric wire grip portions 20 and 20 are internally engaged at positions above the upper edges of the left and right side plate 9c and 9d. The grooves 13 and 13 are recessed rearward, respectively (see FIGS. 3, 5, 7, and 8). Since the grooves 13 and 13 have a symmetrical shape, the shape will be described with reference to the groove 13 in FIG. 2. The groove 13 is composed of a concave groove in the rear direction, and as shown in FIG. 7, it will be described later. It has upper and lower corner portions 13a and 13b with which the left and right wire gripping portions 20 and 20 (upper and lower wire portions 20b and 20c) are engaged. Tapered portions 13d for receiving electric wires are formed on the lower side of each side.

A metal needle electrode 15 is fixed inside the left and right side plates 12a and 12b of the electric wire receiving portion 12. As shown in FIGS. 1 and 2, the needle electrode 15 is provided with upper needle portions 15a to 15c and lower needle portions 15a'to 15c' on the upper and lower sides, and as shown in FIG. In addition, three upper and lower needle portions are arranged side by side at intervals in the left-right direction in a plan view (upper and lower needle portions 15a, 15a', upper and lower needle portions 15b, 15b', upper and lower needle portions 15c, 15c'), these needle electrodes 15 break the coating of the electric wire E and come into contact with the internal metal conductor when the electric wire is gripped, and conduct the conductor Ec of the electric wire E and the metal electric wire receiving portion 12. (See FIG. 3).

The needle electrode 15 is connected and fixed to the electric wire receiving portion 12 in a conductive state by contacting the front surface 15'(see FIG. 2) with the inner surface of the electric wire receiving portion 12. Reference numeral 18 denotes a metal fitting for fixing the needle electrode 15 to the front plate 9a via the through hole 18a (see FIGS. 2 and 5).

Further, the front plate 9a of the electric wire receiving portion 12 is formed with through holes 19, 19'upper and lower on the left side and through holes 19, 19' (4 in total) on the right side, respectively (FIG. 5). , See FIG. 8). The upper left and right through holes 19 and 19 are provided at substantially the same height as the upper corner portions 13a and 13a of the left and right grooves 13 and 13, and the lower left and right through holes 19' , 19'are provided at substantially the same height as the corner portions 13b and 13b below the left and right grooves 13 and 13. Then, the ends 20b'and 20c' of the left electric wire gripping portion 20 were inserted into the left through holes 19 and 19'from the inside (rear side) of the electric wire receiving portion 12 and widened to the left. The upper and lower wire portions 20b and 20c of the electric wire grip portion 20 are configured to be located at the upper corner portion 13a and the lower corner portion 13b in the groove 13 on the left side (FIGS. 5 and 7 (a). ) (B). Further, the ends 20b'and 20c' of the right wire gripping portion 20 are inserted into the through holes 19 and 19'on the right side from the inside (rear side) of the wire receiving portion 12 and expanded to the right. The upper and lower wire portions 20b and 20c of the electric wire grip portion 20 are configured to be located at the upper corner portion 13a and the lower corner portion 13b of the groove 13 on the right side (FIGS. 7A and 7B). , See FIG. 5).

Next, the electric wire gripping portion 20 will be described. The electric wire gripping portion 20 has one on the left side of the electric wire receiving portion 12, one on the right side of the electric wire receiving portion 12, one on the left side of the movable electric wire receiving portion 24 described later, and one on the right side, for a total of four. Although they are used, they all have the same shape, so one electric wire gripping portion 20 will be described below.

The electric wire grip portion 20 is made of metal (for example, stainless steel (SUS304WPB or the like)) and is made of an elastic wire having a diameter of, for example, about 2 mm to 3 mm, and is made of a metal wire that can be elastically bent. As shown in 9, one wire rod is bent into a U-shape at one end at a radius of 10 mm, for example, to form a U-shaped portion 20a, and two wires parallel to each other are formed from the U-shaped portion 20a. An overlined portion 20b and an underlined portion 20c are formed, and a pair of end portions 20b'and 20c'are formed at the other end portion.

Then, as shown in FIGS. 1, 9, and 23 (a), the same points a and a of the overlined portion 20b and the underlined portion 20c that are relatively close to the ends 20b'and 20c' on the other end side are designated. The groove engaging portions 21 and 21 are formed by bending each in the same direction (one direction, the front side in FIG. 1) at substantially right angles, and the end portions 20b', rather than the groove engaging portions 21 and 21 are further formed. The same points b and b of the overlined portion 20b and the underlined portion 20c close to 20c'are bent at substantially right angles in other directions (right or left in FIG. 1) to form the insertion portions 22, 22. Two wire gripping portions 20 are formed. That is, a U-shaped portion 20a is formed at one end, and a substantially L-shaped base end portion (groove engaging portions 21, 21 and insertion portions 22, 22) made of two wire rods is formed at the other end. ing. In this way, the electric wire grip portion 20 is preliminarily processed into the shapes shown in FIGS. 1 and 9. The vertical line portions 20b and 20c from the U-shaped portion 20a to the one point a and a are referred to as contact portions 23.

Then, as shown in FIGS. 1, 2, and 5, the electric wire gripping portion 20 inserts the insertion portions 22 and 22 including the end portions 20b'and 20c'in the upper and lower through holes on the left side of the electric wire receiving portion 12. Insert each into 19 and 19'from the inside, rotate the U-shaped portion 20a side so that it is located to the left of the wire receiving portion 12, and move the groove engaging portions 21 and 21 up and down in the groove 13. By engaging with the corner portions 13a and 13b of the above, the base end portions (insertion portions 22, 22 and groove engaging portions 21 and 21) are fixed (see FIGS. 1, 7 (a) and 7 (b)). The contact portion 23 is placed in the wire receiving portion 12 so that the U-shaped portion 20a is vertically (horizontally) U-shaped (positioned horizontally) on the outward left side of the wire receiving portion 12. Position horizontally on the left side of (see FIGS. 1 and 5).

At this point, as shown in FIGS. 1 and 9, the contact portion 23 is in a state of being tilted rearward by about 10 degrees as a rearward tilt angle θ with respect to the left and right horizontal lines L1 orthogonal to the central axis P. However, in the state where the electric wire is gripped, as shown in FIG. 4, the contact portion 23 is configured to be in close contact with the electric wire E and to be parallel to the electric wire E. That is, in the state where the electric wire E is gripped, the movable electric wire gripping portion 24 is pushed forward by the electric wire E due to the movement of the electric wire gripping portion 20 to the front side, and resists the rearward urging force of the contact portion 23. As shown in FIG. 4, the electric wire gripping portion 20 is configured to be able to hold the side surface (front side surface Ea) of the electric wire E in a state parallel to the electric wire E. .. That is, in the electric wire gripping portion 20 on the left, each U-shaped portion 20a is inclined in the direction of the movable electric wire receiving portion 24 from the base end portion (one point a) in order to apply a rearward urging force to the electric wire E. ing.

Further, in the state of FIG. 1 (before gripping the electric wire E), the electric wire gripping portion 20 on the left is inserted through the through holes 19 and 19'of the electric wire receiving portion 12 and the insertion portions 22 and 22 are inserted. Each of the overlined portions 20b and each of the underlined portions 20c are firmly fixed to the electric wire receiving portion 12 in a state of being engaged with the groove 13 on the left (see FIG. 5).

Further, the U-shaped portion 20a of the electric wire gripping portion 20 has a counter portion H curved slightly forward (in the direction away from the electric wire) from the extension line L2 in the longitudinal direction of the vertical wire portions 20b and 20c. It is formed (see arrow R in FIG. 1), so that when the side surface of the electric wire E is gripped by the contact portion 23, the arc portion 20a'of the counter portion H of the U-shaped portion 20a (FIG. 9 (a)). ) Are in close contact with each other along the circumferential arc on the side surface of the electric wire E (see FIGS. 2, 9, and 10). As a result, the contact portion 23 (upper and lower wire portions 20b, 20c) can be brought into close contact with the side surface of the electric wire E (see FIG. 23A).

The wire grip portion 20 on the right side of the wire receiving portion 12 also has the same shape as the wire grip portion 20, and the wire grip portion 20 on the left side is inverted left and right so that the U-shaped portion 20a is the wire receiving portion. It is attached so as to be located on the right side of 12.

That is, as shown in FIGS. 1, 2, and 5, the electric wire gripping portion 20 on the right side has a through hole on the right side of the electric wire receiving portion 12 through the insertion portions 22 and 22 including the end portions 20b'and 20c'. It is inserted into 19 and 19'from the inside and rotated so that the U-shaped portion 20a side is located to the right, and the groove engaging portions 21 and 21 are engaged with the upper and lower corner portions 13a and 13b of the groove 13. By fitting, the base end portions (insertion portions 22, 22 and groove engaging portions 21 and 21) are fixed (see FIGS. 3 and 4), and the U-shaped portion 20a is outside the wire receiving portion 12. The contact portion 23 is positioned horizontally on the right side of the wire receiving portion 12 so as to form a U-shape (horizontally) in the vertical direction (horizontally) on the right side of the orientation (see FIGS. 1 and 5). ).

At this point, as shown in FIG. 1, the contact portion 23 is in a state of being inclined backward by about 10 degrees as a rearward inclination angle θ with respect to the left and right horizontal lines L1 orthogonal to the central axis P. In the state where the electric wire E is gripped, as shown in FIG. 4, the contact portion 23 is configured to be in close contact with the electric wire E and substantially parallel to the electric wire E. That is, in the state where the electric wire E is gripped, the movable electric wire gripping portion 24, which will be described later, is pushed forward by the electric wire E due to the movement to the front side, and is pushed forward against the rearward urging force of the contact portion 23. As shown in FIG. 4, the side surface (front side surface Ea) of the electric wire E can be held in a state parallel to the electric wire E. That is, in the electric wire gripping portion 20 on the right, each U-shaped portion 20a is inclined in the direction of the movable electric wire receiving portion 24 from the base end portion (one point a) in order to apply a rearward urging force to the electric wire E. ing.

Further, in the state of FIG. 1 (before gripping the electric wire E), the electric wire gripping portion 20 on the right is inserted through the through holes 19 and 19'of the electric wire receiving portion 12 and the insertion portions 22 and 22 are inserted. Each of the overlined portions 20b and each of the underlined portions 20c are firmly fixed to the electric wire receiving portion 12 in a state of being engaged with the groove 13 on the right side.

Further, the U-shaped portion 20a of the electric wire gripping portion 20 has a counter portion H curved slightly forward (in the direction away from the electric wire) from the extension line L2 in the longitudinal direction of the vertical wire portions 20b and 20c. It is formed (see arrow R in FIG. 1), so that when the side surface of the electric wire is gripped by the contact portion 23, the arc of the counter portion H of the U-shaped portion 20a is along the arc of the side surface of the electric wire. It is configured to be in close contact (see FIGS. 2, 9, and 10). As a result, the contact portion 23 (upper and lower wire portions 20b, 20c) can be brought into close contact with the side surface of the electric wire E (see FIG. 23 (a)).

The front plate 9a of the metal rectangular frame 9, the bolt holes 11 and 11 formed in the rear surface plate 9b, and the bolt holes 10 formed in the front side upright plate 8b and the rear surface side upright plate 8c of the mounting bracket 8. , 10 by inserting one metal bolt B, inserting a nut N into the unthreaded rear end B', and using a retaining pin 28 (see FIGS. 2 and 6) to prevent it from coming off. The metal rectangular frame 9 is fixed to the mounting bracket 8 with the bolt B rotatable (see FIG. 2).

By screwing the metal female screw portion 25 at the lower end of the movable electric wire receiving portion 24 into the male screw portion B of the bolt B in the metal rectangular frame 9, the bolt B is rotated in the forward and reverse directions. , The movable electric wire receiving portion (made of metal) 24 is configured so as to be close to and separated from the electric wire receiving portion 12 (see FIGS. 1 and 2).

The movable electric wire receiving portion 24 has an upright substrate 24a fixed to the female screw portion 25 and left and right side plates 24b and 24c facing forward on both left and right edges of the upright substrate 24a in a screwed state to the bolt B. They are formed in parallel (see FIG. 1). The movable electric wire receiving portion 24 has a symmetrical shape with the electric wire receiving portion 12, and is formed in a forward-looking "U" shape in a plan view. However, since the widths of the left and right side plates 24b and 24c in the left-right direction are located inside the metal rectangular frame 9, they are slightly narrower than the wire receiving portion 12 side. The electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side are referred to as "movable electric wire gripping portions 20 and 20".

Grooves 26 and 26 are recessed in the left and right side plates 24b and 24c at the same height as the grooves 13 and 13 of the electric wire receiving portion 12, respectively (see FIGS. 1 and 2). Since the grooves 26 and 26 have a symmetrical shape, the shape will be described with reference to the groove 26 in FIG. 2. The groove 26 is composed of a forward-facing concave groove, and as shown in FIG. 7, the left and right grooves will be described later. Has upper and lower corner portions 26a and 26b with which the movable electric wire gripping portion 20 of the above is engaged. Each of the portions 26d is formed, and the shape thereof is substantially symmetrical with the grooves 13 and 13 of the electric wire receiving portion 12 (the shapes of the tapered portion 26d and the tapered portion 13d are different).

A metal needle electrode 27 facing the needle electrode 15 is fixed inside the movable wire receiving portion 24 sandwiched between the left and right side plates 24b and 24c (see FIGS. 1 and 2). As shown in FIG. 2, the needle electrode 27 is provided with upper needle portions 27a, 27b and lower needle portions 27a', 27b' in the forward direction in the upper and lower directions, and as shown in FIG. 1, the above-mentioned needle electrode 27 is provided. In a plan view, two upper and lower needle portions are arranged side by side with an interval in the left-right direction (upper and lower needle portions 27a, 27a', upper and lower needle portions 27b, 27b'), and these needle electrodes 27 are When the electric wire E is gripped, the coating of the electric wire E is broken and brought into contact with the internal conductor Ec, so that the conductor of the electric wire E and the metal movable electric wire receiving portion 24 are made conductive (see FIG. 3). The upper and lower needle portions 27a, 27a'of the needle electrode 27 are located at intermediate positions between the upper and lower needle portions 15a, 15a'and the upper and lower needle portions 15b, 15b' of the opposing needle electrodes 15 in a plan view (see FIG. 1). The upper and lower needle portions 27b and 27b'are configured to be located at intermediate positions between the upper and lower needle portions 15b and 15b'and the upper and lower needle portions 15c and 15c'of the opposing needle electrodes 15.

The needle electrode 27 is connected and fixed in a conductive state by contacting the rear surface 27'with the inner surface of the upright substrate 24a of the movable electric wire receiving portion 24. Also in the movable electric wire receiving portion 24, the metal fitting 18 fixes the needle electrode 27 to the upright substrate 24a via the through hole 18a (see FIGS. 2 and 6). The needle electrode 15 has a divergent tapered portion toward the rear side (see FIG. 2), and the needle electrode 27 has a divergent tapered portion toward the front side (see FIG. 2), and finally grips the electric wire E. When this happens (see FIG. 3), the tips of the needle electrodes 15 and 27 are electrically connected to the conductor Ec of the electric wire E, and both tapered portions are configured to center the electric wire E.

Further, the movable electric wire receiving portion 24 is formed with through holes 30 and 30'upper and lower on the left side and through holes 30 and 30'(4 in total) on the upper and lower sides on the right side (see FIG. 6).

The upper left and right through holes 30 and 30 are provided at substantially the same height as the upper corner portions 26a and 26a of the left and right grooves 26 and 26, and the lower left and right through holes 30' , 30'are provided at substantially the same height as the corner portions 26b, 26b below the left and right grooves 26, 26. Then, the ends 20b'and 20c' of the left movable electric wire gripping portion 20 are inserted into the left through holes 30 and 30'from the inside (front side) of the movable electric wire receiving portion 24 and expanded to the left. The vertical wire portions 20b and 20c of the movable electric wire grip portion 20 are configured to be located at the upper corner portion 26a and the lower corner portion 26b in the groove 26 on the left side (FIG. 7A). (B), see FIG. 6). Further, the ends 20b'and 20c' of the right movable electric wire gripping portions 20 and 20 are inserted into the through holes 30 and 30'on the right side from the inside (front side) of the movable electric wire receiving portion 24 to the right. The vertical line portions 20b and 20c of the expanded movable electric wire grip portion 20 are configured to be located at the upper corner portion 26a and the lower corner portion 26b of the groove 26 on the right side (FIG. 7 (a). ) (B), see FIG. 6).

In the movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side, the contact portions 23 and 23 are the electric wire gripping portions 20 and 20 with respect to the electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side. The movable wire receiving portion 24 is provided with the same height and parallel to the wire gripping portions 20 and 20 on the wire receiving portion 12 side so as to face the contact portions 23 and 23. It is fixed (see FIG. 1). Further, the electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side and the movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side are configured to have a symmetrical shape.

However, the width in the left-right direction of the movable wire receiving portion 24 is narrower than the width in the left-right direction of the wire receiving portion 12, and the mounting positions (through holes 30 and 30 and through holes 30 and 30) on the insertion portions 22 and 22 of the movable wire grip portions 20 and 20. Since the width of the holes 30'and 30') is narrower than the widths of the through holes 19 and 19 and the through holes 19' and 19', the left and right movable electric wire gripping portions 20 and 20 are electric wires on the electric wire receiving portion 12 side. It is fixed closer to the left and right directions than the grip portions 20 and 20 (see FIGS. 1, 4 to 6).

Then, as shown in FIGS. 1, 2, and 6, the movable wire gripping portion 20 of the movable wire receiving portion 24 has the insertion portions 22, 22 including the end portions 20b'and 20c', and the movable electric wire receiving portion. The groove engaging portions 21 and 21 are inserted into the through holes 30 and 30'on the left side of the 24 and rotated so that the U-shaped portion 20a side is located to the left, and the upper and lower corner portions 26a of the groove 26. By engaging with 26b, it is fixed by the base end portions (insertion portions 22, 22 and groove engaging portions 21 and 21) (see FIGS. 7 (a) and 7 (b) and FIG. 6), and the above U-shape. The contact portion 23 is placed on the left side of the movable wire receiving portion 24 so that the portion 20a is vertically (horizontally) U-shaped (positioned horizontally) on the outward left side of the movable wire receiving portion 24. Position it horizontally (see FIGS. 1 and 6).

At this point, as shown in FIG. 1, the contact portion 23 is in a state of being tilted forward by about 10 degrees as a forward tilt angle θ with respect to the left and right horizontal lines L1 orthogonal to the central axis P. (See FIG. 9), in the state where the electric wire E is gripped, as shown in FIG. 4, the contact portion 23 is configured to be substantially parallel to the electric wire E. That is, in the state where the electric wire E is gripped, the movable electric wire gripping portion 24 is pushed to the rear side by the electric wire E by moving to the front side, and is pushed backward against the forward urging force of the contact portion 23. As shown in FIG. 4, the side surface (rear side side surface Eb) of the electric wire E can be held in a state parallel to the electric wire E. That is, in the movable electric wire gripping portion 20 on the left, the U-shaped portion 20a is inclined in the direction of the electric wire receiving portion 12 from each base end portion (one point a) in order to apply an urging force in the front direction to the electric wire E. doing.

Further, the U-shaped portion 20a of the movable electric wire grip portion 20 has a counter portion H formed so as to be slightly rearward (in a direction away from the electric wire) from the extension line L2 in the longitudinal direction of the overline portions 20b and 20c. It is formed (see arrow R'in FIG. 1), so that when the side surface of the electric wire E is gripped by the contact portion 23, the arc portion 20a'of the reverse portion H of the U-shaped portion 20a becomes the electric wire E. It is configured to be in close contact with each other along the arc on the side surface (see FIGS. 2, 9, and 10). As a result, the contact portion 23 (upper and lower wire portions 20b, 20c) can be brought into close contact with the side surface of the electric wire E (see FIG. 23A).

The movable wire grip portion 20 on the right side of the movable wire receiving portion 24 also has the same shape as the movable wire grip portion 20 on the left side, and the movable wire grip portion 20 on the left side is inverted left and right to form a U-shaped portion. 20a is attached so as to be located on the right side of the electric wire receiving portion 12.

That is, as shown in FIG. 1, the movable electric wire gripping portion 20 on the right side can move the insertion portions 22 and 22 including the end portions 20b'and 20c' as shown in FIGS. 1, 2 and 6. Insert it into the through holes 30 and 30'on the right side of the electric wire receiving portion 24 from the inside, and rotate it so that the U-shaped portion 20a side is located in the right direction to move the groove engaging portions 21 and 21 above and below the groove 26. By engaging with the corner portions 26a and 26b of the above, the base end portions (insertion portions 22, 22 and groove engaging portions 21 and 21) are fixed (see FIG. 7), and the U-shaped portion 20a is movable. The contact portion 23 is positioned horizontally on the right side of the movable wire receiving portion 24 so as to form a U-shape (horizontally) in the vertical direction (horizontally) on the outward right side of the electric wire receiving portion 24 (so that it is positioned horizontally). (See FIG. 1).

At this point, as shown in FIG. 1, the contact portion 23 is in a state of being inclined forward by about 10 degrees as a forward inclination angle θ with respect to the left and right horizontal lines L1 orthogonal to the central axis P. In the state where the electric wire E is gripped, as shown in FIG. 4, the contact portion 23 is configured to be substantially parallel to the electric wire E. That is, in the state where the electric wire E is gripped, the movable electric wire gripping portion 24, which will be described later, is pushed backward by the electric wire E due to the movement to the front side, and is pushed backward against the forward urging force of the contact portion 23. As shown in FIG. 4, the side surface (rear side side surface Eb) of the electric wire E can be held in a state parallel to the electric wire E. That is, in the movable electric wire gripping portion 20 on the right, the U-shaped portion 20a is inclined in the direction of the electric wire receiving portion 12 from each base end portion (one point a) in order to apply an urging force in the front direction to the electric wire E. (See Fig. 1).

Further, the U-shaped portion 20a of the movable electric wire grip portion 20 is curved so as to be slightly rearward (in the direction away from the electric wire) from the extension line L2 in the longitudinal direction of the vertical wire portions 20b and 20c. (See arrow R'in FIG. 1), whereby when the side surface of the electric wire E is gripped by the gripping portion 23, the arc of the reverse portion H of the U-shaped portion 20a is the arc of the side surface of the electric wire. (See FIG. 10). As a result, the contact portion 23 (upper and lower wire portions 20b, 20c) can be brought into close contact with the side surface of the electric wire E (see FIG. 23A).

As described above, the movable electric wire gripping portion 20 on the left side and the movable electric wire gripping portion 20 on the right side have the same level in the horizontal direction with the pair of vertical wire portions 20b and 20c positioned in the vertical direction (vertical direction). (See FIG. 6), the movable electric wire gripping portion 20 on the left side and the movable electric wire gripping portion 20 on the right side have each pair of vertical wire portions 20b and 20c positioned in the vertical direction (vertical direction). In the state, they are located at the same level in the horizontal direction, and the left and right electric wire gripping portions 20 and 20 of the electric wire receiving portion 12 and the left and right movable electric wire gripping portions 20 and 20 of the movable electric wire receiving portion 24 are at the same level. It is provided at the position (see FIGS. 2, 5, and 6).

The upper metal fitting 5 (see FIG. 11) is connected from the terminal 5a to the power varistor 31 via a metal rod K (conductor), and further from the power varistor 31 to the terminal 4a via the metal rod K and the gap G. It is connected to the lower metal fitting 4 and is grounded from the lower metal fitting 4 to the ground via the arm metal 3 and the utility pole 2 via the electric cable K'.

Since the present invention is configured as described above, its operation will be described below. As mentioned earlier, the electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side are referred to as "movable electric wire gripping portions 20 and 20".

As shown in FIG. 11, the electric wire stopper clip 1 according to the present invention is fixed on the upper metal fitting 5 on the porcelain 6, and the electric wire receiving portion 12 and the movable electric wire receiving portion 24 are separated as shown in FIGS. 1 and 2. The electric wire E does not exist between the left and right electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side and the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side, and the electric wire receiving portion is described above. Both the electric wire gripping portions 20 and 20 on the 12 side are inclined rearward by about 10 degrees (θ) from one point a, a with respect to the straight lines L1 and L1, and the movable electric wire gripping portion 24 side on the movable electric wire gripping portion 24 side. It is assumed that the portions 20 and 20 are inclined forward by about 10 degrees (θ) from each of the points a and a with respect to the straight lines L1 and L1.

Next, an electric wire E having a constant diameter is arranged between the electric wire receiving portion 12 and the movable electric wire receiving portion 24 in a direction orthogonal to the longitudinal direction of the metal rectangular frame 9 of the electric wire stop clip 1. The electric wire gripping portions 20 and 20 and the movable electric wires are aligned with the electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side and the movable electric wire gripping portions 20 and 20 on the movable electric wire gripping portion 24 side. It is arranged parallel to the grip portions 20 and 20. That is, the operator arranges the electric wire E in parallel between the electric wire grip portions 20 and 20 and the movable electric wire grip portions 20 and 20.

Specifically, as shown in FIG. 5, the U-shaped portions 20a and 20a of the left and right electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side form the shaft of the front side surface Ea of the electric wire E. Located in the center of the direction, so that the electric wire E is located along the left and right overlined portions 20b, 20b and underlined portions 20c, 20c, that is, the central portion of the left and right overlined portions 20b, 20b and underlined portions 20c, 20c. Arranges the electric wire E so as to be located at a substantially central position in the longitudinal direction of the front side surface Ea of the electric wire E.

When arranged in this way, at the same time, as shown in FIG. 6, in the electric wire E, the U-shaped portions 20a and 20a of the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side are behind the electric wire E. Positioned corresponding to the axial center of the side side surface Eb, so that the electric wires E are located along the left and right upper line portions 20b and 20b and the underlined portions 20c and 20c, that is, the left and right upper line portions 20b and 20b. The central portions of the underlined portions 20c and 20c are located corresponding to the substantially central positions in the longitudinal direction of the rear side side surface Eb of the electric wire E.

In such a state, the operator fits a hexagon wrench on the head of the bolt B, rotates the hexagon wrench to the right, and rotates the bolt B in the right screw direction. Then, since the bolt B rotates in the right-hand screw direction, the movable electric wire receiving portion 24 gradually approaches the electric wire receiving portion 12 via the female screw portion 25.

The left and right contact portions 23, 23 (each left and right upline portion 20b, underline portion 20c) of the left and right electric wire grip portions 20 and 20 on the electric wire receiving portion 12 side are on the front side of the electric wire E on the electric wire receiving portion 12 side. On the side surface Ea, the contact portions 23 and 23 are pushed forward against the urging force on the rear side, and as shown in FIG. 4, the contact portions 23 (left and right) on the left and right sides of the wire grip portions 20 and 20. Each of the upper line portion 20b and the underline portion 20c) is pushed to a state parallel to the front side side surface Ea of the electric wire E, and in the parallel state, a rearward urging force is applied to the front side side surface Ea of the electric wire E. In this state, the electric wire E is in a state of being strongly contacted (adhered) to the front side surface Ea.

At this time, as shown in FIG. 10, the arcuate portions 20a'and 20a'of the counter portions H of the U-shaped portions 20a and 20a at both ends of the electric wire gripping portions 20 and 20 are on the electric wire receiving portion 12 side of the electric wire E. It is in a state of being in contact with the side surface (front side side Ea) along the arc (state in which the electric wire is embraced), whereby the contact portions 23 and 23 (upline portion 20b, underline portion 20c) are surely attached to the side surface of the electric wire E. It is configured so that it does not come into contact and shift. Further, the counter portion H can alleviate the concentration of bending stress on the electric wire E at the U-shaped portion 20a at the tip, and can prevent the electric wire from being damaged (see FIG. 23 (a)).

At the same time, due to the clockwise rotation of the bolt B, the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side (particularly, the U-shaped portions 20a and 20a at both ends) are behind the electric wire E. Each side surface Eb (left and right side surfaces on the movable electric wire receiving portion 24 side) is in contact with each other, and similarly, the rear side surface Eb of the electric wire E is pressed forward.

When the electric wire E is pushed forward by the left and right U-shaped portions 20a and 20a on the movable electric wire receiving portion 24 side, the electric wire E is pushed forward and the left and right electric wires of the electric wire receiving portion 12 are pushed. The electric wires E are pushed forward against the backward urging force of the grips 20 and 20, and in this situation, the movable electric wire grips 20 and 20 also have these movable electric wire grips 20 and 20. The electric wire E is pushed forward against the forward urging force of 20, and the left and right electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side are parallel to the electric wire E. At about the same time, the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side became parallel to the rear side side surface Eb (the side surface on the movable electric wire receiving portion 24 side) of the electric wire E, and FIG. As shown, the left and right contact portions 23, 23 (left and right upper line portions 20b, underline portion 20c) of the left and right movable electric wire grip portions 20 and 20 are pushed to a state parallel to the rear side side surface Eb of the electric wire E. In the parallel state, the urging force on the front side is applied to the rear side surface Eb of the electric wire E, and the side surface of the electric wire E is strongly contacted (adhered).

At this time, as shown in FIG. 10, the arcuate portions 20a'and 20a'of the counter portions H of the U-shaped portions 20a and 20a at both ends of the left and right movable electric wire gripping portions 20 and 20 are the movable electric wire receivers of the electric wire E. The side surface on the side of the portion 24 (rear side surface Eb) is in contact with the arc (the state in which the electric wire is embraced), whereby the contact portions 23 and 23 (upline portion 20b, underline portion 20c) are brought into contact with the side surface of the electric wire E. Are configured to ensure contact with each other and prevent misalignment (see FIG. 23 (a)). Similarly, the counter portion H can alleviate the concentration of bending stress on the electric wire E at the U-shaped portion 20a at the tip, and prevent the electric wire from being damaged.

The operator rotates the hexagonal wrench to the right, and the left and right wire grips 20 and 20 of the wire receiving portion 12 and the left and right movable wire grips 20 and 20 of the movable wire receiving portion 24 are shown in FIG. As shown, the front side side surface Ea and the rear side side surface Eb of the electric wire E are in parallel with each other, and the left and right electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side and the left and right movable electric wires on the movable electric wire receiving portion 24 side are respectively. The grip portions 20 and 20 are parallel to the front side and rear side side surfaces Ea and Eb of the electric wire E over a predetermined length, and the front side and rear side side surfaces Ea and Eb of the electric wire E are on the left and right sides. The rotation of the hexagonal wrench is stopped when the electric wires are gripped so as to be sandwiched between the electric wire grips 20 and 20 and the movable electric wire grips 20 and 20.

In this state, the left electric wire E is a movable electric wire composed of a rearward urging force of the electric wire grip portion 20 made of the left elastic wire on the electric wire receiving portion 12 side and the left elastic wire on the movable electric wire grip portion 24 side. Due to the forward urging force of the grip portion 20, each of the contact portions 23, 23 comes into close contact with the electric wire E, and comes into contact with the electric wire over a predetermined length of each of the contact portions 23, 23, and the electric wire E grips the electric wire. The portion and the movable electric wire gripping portions 20 and 20 are in a state of being strongly sandwiched from the front side side surface Ea and the rear side side surface Eb of the electric wire E in the axial direction.

At the same time, the right electric wire E also has a rearward urging force of the electric wire grip portion 20 made of the right elastic wire material on the electric wire receiving portion 12 side and a movable electric wire grip portion made of the right elastic wire material on the movable electric wire receiving portion 24 side. Due to the forward urging force of 20, each of the contact portions 23, 23 is in close contact with the electric wire E, and is in contact with the electric wire over a predetermined length of each of the contact portions 23, 23. The movable electric wire gripping portions 20 and 20 are in a state of being strongly sandwiched from the front side side surface Ea and the rear side side surface Eb of the electric wire E in the axial direction.

Further, at this time, as shown in FIG. 7A, the front side surface Ea of the electric wire E abuts on the vertical wire portions 20b and 20c of the electric wire gripping portions 20 and 20 and is formed in the grooves 13 and 13. It is securely supported, and its rear side surface Eb abuts on the vertical wire portions 20b and 20c of the movable electric wire grip portions 20 and 20 and is reliably supported in the grooves 26 and 26 and does not shift (FIG. 7 (FIG. 7). The diameter of the electric wire E in a) is 10 mm). Even when the diameter of the electric wire E is large, as shown in FIG. 7B (the diameter of the electric wire E is 19 mm), the front side surface Ea thereof is the vertical line of the electric wire gripping portions 20 and 20. Together with the portions 20b and 20c, the left and right tapered portions 13c and 13d of the left and right grooves 13 and 13 are abutted and reliably supported, and the rear side surface Eb thereof is the vertical line portion of the movable electric wire grip portions 20 and 20. By abutting on 20b and 20c and also abutting on the left and right tapered portions 26c and 26d of the left and right groove portions 26 and 26, it is reliably supported and does not deviate significantly. Further, even when the wire diameter is large, the outer circumference of the wire E comes into contact with the left and right tapered portions 13c and 13d and the left and right tapered portions 26c and 26d within the range of the left and right grooves 13 and 26. It is surely supported and does not shift.

Further, in such a pinched state, as shown in FIGS. 3 and 4, the upper and lower needle portions 15a to 15c, 15a'to 15c'and the movable wire receiving portion 24 of the needle electrode 15 on the wire receiving portion 12 side of the wire stop clip 1 The upper and lower needle portions 27a, 27b, 27a', 27b'of the side needle electrode 27 can break the coating E'of the electric wire E and come into contact with the inner conductor Ec, respectively, to realize a conductive state with the electric wire stop clip 1. .. Further, since the electric wire E can be elastically gripped by the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20 over the predetermined lengths of the left and right electric wires E of the needle electrodes 15 and 27, the electric wire in the vicinity of the needle electrode The stress concentration of E can be prevented, and the discharge function of the wire stop clip 1 is not impaired.

Actually, as shown in FIG. 13A, the electric wire E is sequentially applied to the electric wire stop clips 1 on the arms 3, 3 ... Between the plurality of utility poles 2, 2 ... It will be fixed to. As shown in FIG. 12, the electric wire E is relatively hard, and the portions S, S sandwiched by the electric wire grip portions 20, 20 and the movable electric wire grip portions 20, 20 on both sides of the electric wire stop clip 1. Holds a state parallel to the electric wire gripping portions 20 and 20, and each electric pole is formed so that the portions ahead of the portions S and S are gently convex downward as shown in FIG. 13 (a). It will be passed between 2, 2 ...

At this time, as shown in FIG. 13B, the electric wire E vibrates in the front-rear direction (arrows F, F'direction) with the largest amplitude in the central portion M due to the wind. In this case, on the left and right sides of the electric wire stop clip 1 of the electric wire E, the arc-shaped both side surfaces Ea and Eb on the front side and the rear side of the electric wire E are the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20. Since the electric wires E are sandwiched by the contact portions 23 and 23 over a predetermined range in the longitudinal direction, even if the electric wire E vibrates in the front-rear direction (FIG. 4, arrows F, F'direction), it is composed of an elastic wire. The electric wire gripping portions 20, 20 and the movable electric wire gripping portions 20, 20 include the U-shaped portion 20a with the vicinity of the one point a, a as a fulcrum in accordance with the vibration of the electric wire E in the front-rear direction. Since the entire portions 23 and 23 elastically deform and vibrate in the front-rear direction (directions of arrows F and F'in FIG. 4), the holding portions (axis of the electric wire E) in which the contact portions 23 and 23 of the electric wire E are in contact with each other. Since the stress does not concentrate on a specific portion in the predetermined length in the direction), it is possible to extremely effectively prevent an accident such as deterioration or disconnection of the electric wire E due to vibration.

In particular, the electric wire E is in a state in which the front side surface Ea and the rear side side surface Eb are strongly sandwiched by the electric wire gripping portions and the movable electric wire gripping portions 20 and 20 by the spring force facing each other over a predetermined length, and the electric wire E vibrates. Even so, the electric wire grips 20 and 20 and the movable electric wire grips 20 and 20 having a predetermined length also vibrate elastically together with the electric wire (for example, in FIG. 4, the electric wire vibrates in the direction of arrow F (F'). At this time, the electric wire grip portion 20 (movable electric wire grip portion 20) can be deformed in the direction of the arrow F (F'), but since the movable electric wire grip portion 20 (electric wire grip portion 20) is also urged forward (rear). , It can follow the deformation of the electric wire E in the F (F') direction and can be deformed), and it is possible to disperse the stress concentration on the specific portion of the pinched portion over the predetermined length of the electric wire E. Further, the base end portions of the electric wire gripping portions 20 and 20 reliably support the electric wire, so that stress concentration due to the movement of the electric wire does not occur in the vicinity of the needle electrode and does not affect the discharge function.

Further, the electric wire gripping portion 20 and the movable electric wire gripping portion 20 have the arc-shaped front side surface Ea and the rear side side surface Eb of the electric wire set to a predetermined length by the upper line portion 20b and the underline portion 20c in the vertical direction (vertical direction). Since it is elastically sandwiched over the wire, it is easy to follow the vibration of the electric wire in the front-rear direction, and the concentration of bending stress on the electric wire can be effectively dispersed.

Moreover, the front side surface Ea of the electric wire is held by the two upper line portions 20b and the underline portion 20c (contact portions 23, 23) in a vertically spaced state, and the arc-shaped rear side side surface Eb of the electric wire is held by two. Since the arcuate side surface of the electric wire is held with the upper line portion 20b and the underline portion 20c spaced apart from each other, not only the movement of the electric wire in the front-rear direction (in the directions of arrows F and F'in FIG. For example, it can follow the movement in the vertical direction (directions of arrows Q and Q'in FIG. 10), can follow the movement in various directions of the electric wire, and can effectively disperse the concentration of stress on the electric wire.

Further, since the U-shaped portion 20a of the electric wire gripping portion 20 (the same applies to the movable electric wire gripping portion 20) has a counter portion H formed in the direction away from the electric wire, the overline portion 20b and the underline portion 20c are formed from the counter portion H. Since the electric wire can be brought into close contact with each other so as to embrace the electric wire, the bending stress concentration of the electric wire at the tip of the electric wire grip portion 20 can be effectively dispersed.

As described above, the electric wire E can be securely sandwiched on both the left and right sides of the electric wire stop clip 1, whereby the electric wire gripping portion 20 and the movable electric wire gripping portion 20 come into close contact with the electric wire E and follow the vibration of the electric wire E. Therefore, the bending stress on the electric wire E can be evenly distributed.

The contact portion 23 of the electric wire E with the upper line portion 20b and the underline portion 20c of the electric wire grip portion 20 (the same applies to the movable electric wire grip portion 20) is in the middle of the outer circumference slightly separated from the center of the side portion of the electric wire E. When the electric wire E vibrates due to a wind pressure load or the like, the electric wire E sandwiches the outer circumference thereof between the overlined portion 20b and the underlined portion 20c over a predetermined length, thereby causing wear between the wires (inside the electric wire). The phenomenon that the aluminum wires slide in contact with each other and the wires are worn) can be reduced, and the elastic force (repulsive force) due to the spring deformation of the wire grip portion 20 can disperse the bending stress. Therefore, the effect of dispersing bending stress and the effect of reducing wear between strands can be enhanced.

Further, the tip of the U-shaped folded portion is retreated from the strong pressure on the electric wire E by providing the counter portion H along the electric wire amplitude direction, and is along the outer periphery of the electric wire E like the contact portion 23. Become. Therefore, the elastic force is less likely to be biased toward the tip end side of the electric wire grip portion 20. This acts to disperse the bending stress in the range from the contact portion 23 to the counter portion H, and further, the effect of reducing the wear between the strands can be enhanced by dispersing the bending stress.

(Second Embodiment)
Next, the second embodiment will be described.
The same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted for convenience.

As shown in FIGS. 14 (a) to 14 (c), the electric wire grip portion 20 has a point formed of a metal elastic wire and a shape on the end portions 20b'and 20c', that is, groove engagement. The shapes of the portions 21 and 21 and the insertion portions 22 and 22 (that is, the base end portion) are the same as those of the electric wire grip portion 20 of the first embodiment, but the shape of the folded portion is U-shaped in the first embodiment. The difference is that the portion 20a is a diamond-shaped portion 20g in the second embodiment. Since the four electric wire gripping portions 20 (movable electric wire gripping portions 20) used on the electric wire receiving portion 12 side and the movable electric wire receiving portion 24 side all have the same shape, one electric wire gripping portion 20 will be described.

More specifically, when looking at the side view of FIG. 14C, the diamond-shaped portion 20g is in a direction of widening the distance between the overlined portion 20b and the underlined portion 20c from the other ends of the overlined portion 20b and the underlined portion 20c. Once the width is widened to form a pair of rhombic bent portions 20d and 20d, the tip bent portion 20e is formed on the virtual center line L3 between the overlined portion 20b and the underlined portion 20c, and the bent portions 20d and 20d and the above-mentioned bent portions 20d and 20d are formed. A rhombic portion 20g is formed by the tip bending portion 20e.

Looking at the plan view of FIG. 14B, the pair of bent portions 20d and 20d are not only widened from the overlined portions 20b and the underlined portions 20c, but are also different from the groove engaging portions 21 and 21. It is bent in a dogleg shape in the opposite direction (on the wire E side) (see FIG. 23 (b)). As a result, as shown in FIGS. 18 and 23 (b), the tip bent portion 20e of the diamond-shaped portion 20g becomes a curved portion 20f (electric wire receiving portion 12 side) along the axial direction of the front side surface Ea of the electric wire E. , A curved portion 20f (movable electric wire receiving portion 24 side) along the axial direction of the rear side surface Eb of the electric wire E is formed, and as shown in FIG. 23 (a), the curved portion 20f along the circumferential direction of the electric wire E is formed. The portion 20h is formed.

Further, as shown in FIG. 14B, the vertical line portions 20b and 20c are rearwardly or forwardly set with a rearward inclination angle θ or a forward inclination angle θ (for example, θ = about 10 degrees) with respect to the left and right horizontal lines L1 and L1. The point of inclination is the same as that of the electric wire grip portion 20 of the first embodiment (see FIG. 15).

Then, as shown in FIGS. 15, 16 and 19, the electric wire receiving portion 12 has the base end portions (groove engaging portion 21, insertion portion 22) of the electric wire gripping portions 20 and 20 as in the first embodiment. The upper and lower wire portions 20b and 20c and the diamond-shaped portions 20g and 20g are fixed so as to be horizontal to the left and right of the electric wire receiving portion 12, and are fixed to the electric wire receiving portion 12 on the left and right vertical wires. The portions 20b and 20c are inclined rearward at an inclination angle θ (for example, θ = about 10 degrees) with respect to the left and right horizontal lines L1 and L1.

Further, as shown in FIGS. 15, 16 and 20, the movable electric wire receiving portion 24 has the base end portions (groove engaging portion 21, insertion portion 22) of the movable electric wire gripping portions 20 and 20 in the first embodiment. The vertical wire portions 20b and 20c and the diamond-shaped portions 20g and 20g are fixed so as to be horizontal to the left and right of the movable electric wire receiving portion 24, and are fixed to the movable electric wire receiving portion 12. The left and right vertical line portions 20b and 20c are inclined forward with respect to the left and right horizontal lines L1 and L1 at an inclination angle θ (for example, θ = about 10 degrees).

Further, as shown in FIG. 15, in such a state, the bent portions 20d and 20d of the rhombic portions 20g and 20g are attached so as to be located in directions facing each other so as to be substantially symmetrical with each other. Since the mounting positions of the movable wire gripping portions 20 and 20 of the movable wire receiving portion 24 are closer to the central portion than the mounting positions of the wire gripping portions 20 and 20 of the wire receiving portion 12, the wire gripping portion 20 is described above. , 20 from the positions of the bent portions 20d and 20d, the positions of the bent portions 20d and 20d of the movable electric wire grip portions 20 and 20 are located closer to the central portion.

Since the second embodiment is configured as described above, its operation will be described below.
As shown in FIG. 11, the electric wire stopper clip 1 of the second embodiment is fixed on the upper metal fitting 5 as shown in FIG. 11, and the electric wire receiving portion 12 and the movable electric wire receiving portion 24 are shown in FIG. As shown in FIG. 16, the wires E are separated between the left and right wire gripping portions 20 and 20 on the wire receiving portion 12 side and the left and right movable wire gripping portions 20 and 20 on the movable wire receiving portion 24 side. Instead, the wire grips 20 and 20 on the wire receiving portion 12 side are all inclined rearward by about 10 degrees from each point a, a with respect to the straight lines L1 and L1, and the movable wire grip portion 24 side. It is assumed that the movable electric wire gripping portions 20 and 20 of the above are inclined forward by about 10 degrees from each of the points a and a with respect to the straight line L1.

Next, an electric wire E having a constant diameter is arranged between the electric wire receiving portion 12 and the movable electric wire receiving portion 24 in a direction orthogonal to the longitudinal direction of the metal rectangular frame 9 of the electric wire stop clip 1. The electric wire gripping portions 20 and 20 and the movable electric wires are aligned with the electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side and the movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side. It is arranged parallel to the grip portions 20 and 20 (see FIG. 18). That is, the operator arranges the electric wire E in parallel between the electric wire grip portions 20 and 20 and the movable electric wire grip portions 20 and 20.

Specifically, as shown in FIG. 19, the wire E is the diamond-shaped portions 20g of the left and right wire gripping portions 20 and 20 on the wire receiving portion 12 side, and the tip bending portions 20e and 20e of the 20g are in front of the wire E. It is located at the center line L4 in the axial direction of the side side surface Ea so that the electric wires E are located along the left and right overlined portions 20b and 20b and the underlined portions 20c and 20c, that is, the left and right overlined portions 20b and 20b and the underlined portion. The electric wire E is arranged so that the central portion of the interval of 20c and 20c is located at a substantially central position in the longitudinal direction of the front side surface Ea of the electric wire E.

When arranged in this way, at the same time, as shown in FIG. 20, the electric wire E is a bent end portion 20e of each of the diamond-shaped portions 20 g and 20 g of the left and right movable electric wire grip portions 20 and 20 on the movable electric wire receiving portion 24 side. 20e is located corresponding to the axial center line L4 of the rear side surface Eb of the electric wire E, and the electric wire E is positioned along the left and right overlined portions 20b and 20b and the underlined portions 20c and 20c, that is, left and right. The central portion of the distance between the overlined portions 20b and 20b and the underlined portions 20c and 20c is located corresponding to a substantially central position in the longitudinal direction of the rear side surface Eb of the electric wire E.

In such a state, the operator fits a hexagon wrench on the head of the bolt B, rotates the hexagon wrench to the right, and rotates the bolt B in the right screw direction. Then, since the bolt B rotates in the right-hand screw direction, the movable electric wire receiving portion 24 gradually approaches the electric wire receiving portion 12 via the female screw portion 25.

Then, the front side surface Ea of the electric wire E comes into contact with the left and right vertical curved portions 20f, 20f and the curved portion 20h at the tips of the electric wire grip portions 20, 20, and the electric wire grip portions 20, 20 are formed at the front side side surfaces Ea, Ea. The contact portions 23 and 23 are pushed forward against the urging force on the rear side, and as shown in FIG. , The underlined portion 20c) is pushed to a state parallel to the front side surface Ea of the electric wire E, and in the parallel state, the rear side biasing force is applied to the front side surface Ea of the electric wire E. It is in a state of being in strong contact (adhesion) with the front side surface Ea.

At this time, the front side edge Ea of the electric wire E enters the tip bent portions 20e and 20e by being guided by the rhombic portions 20g and the curved portions 20f and 20f of the electric wire grip portions 20 and 20 at both ends (FIG. 21 (a). ), FIG. 23 (b)), an arc in the circumferential direction of the electric wire E is located along the curved portion 20h (see FIG. 22), whereby the center line L4 of the electric wire E becomes the electric wire gripping portions 20 and 20. It is located in the middle of the overlined portion 20b and the underlined portion 20c, and is configured so that the electric wire E does not shift with respect to the electric wire gripping portions 20 and 20 (see FIG. 19).

Similarly, the rear side edge Eb of the electric wire E enters the tip bent portions 20e and 20e guided by the rhombic portions 20g and the curved portions 20f and 20f of the movable electric wire grip portions 20 and 20 (FIG. 23 (FIG. 23). b)), the arc in the circumferential direction of the electric wire E is located along the curved portion 20h (see FIG. 22), whereby the center line L4 of the electric wire E becomes the overlined portion 20b of the movable electric wires gripping portions 20, 20. It is located in the middle of the underlined portion 20c, and is configured so that the electric wire E does not shift with respect to the movable electric wire gripping portions 20 and 20 (see FIG. 20).

Then, due to the clockwise rotation of the bolt B, the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side (particularly, the diamond-shaped portions 20g and 20g at both ends) are placed on the rear side surface of the electric wire E. Each of them abuts on Eb (left and right side surfaces on the movable electric wire receiving portion 24 side), and similarly presses the rear side side surface Eb of the electric wire E forward. At this time, the diamond-shaped portions 20g of the electric wire grip portions 20 and 20 and the bent portions 20d and 20d of the 20 g are bent toward the front side side surface Ea side (rear side) of the electric wire E, respectively, and the movable electric wire grip portion. Since the diamond-shaped portions 20g of 20 and 20 and the bent portions 20d and 20d of 20 g are bent toward the rear side side surface Eb side (front side) of the electric wire E, respectively, the upper and lower bent portions 20d and 20d are formed on the left side. The front side surface Ea and the rear side surface Eb of the electric wire E are wrapped, and similarly, the front side side surface Ea and the rear side surface Eb of the electric wire E are wrapped by the upper and lower bent portions 20d and 20d on the right side (FIG. 18). , FIG. 22), in the process of sandwiching the electric wire E by the electric wire gripping portions 20, 20 and the movable electric wire gripping portions 20, 20, from the electric wire gripping portions 20, 20 and the movable electric wire gripping portions 20, 20 of the electric wire E. It is possible to prevent the electric wire E from coming off and to stably hold the electric wire E.

When the electric wire E is pushed forward by the left and right diamond-shaped portions 20 g and 20 g on the movable electric wire receiving portion 24 side, the electric wire E is pushed forward and the left and right electric wire grip portions of the electric wire receiving portion 12 are pushed. The electric wire E is pushed forward against the backward urging force of 20 and 20, and in this situation, the movable electric wire gripping portions 20 and 20 also have the movable electric wire gripping portions 20 and 20. The electric wire E is pushed forward against the forward urging force, and in a state where the left and right electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side are parallel to the electric wire E, the same is substantially the same. At this time, the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire gripping portion 24 side are in a state parallel to the rear side side surface Eb (the side surface on the movable electric wire gripping portion 24 side) of the electric wire E, as shown in FIG. The left and right contact portions 23, 23 (left and right upper line portions 20b, underline portion 20c) of the left and right movable electric wire grip portions 20 and 20 are pushed to a state parallel to the rear side side surface Eb of the electric wire E. In the parallel state, the urging force on the front side is applied to the rear side surface Eb of the electric wire E, and the side surface of the electric wire E is strongly contacted (closely attached).

At this time, as shown in FIG. 18, the bent portion 20d of the electric wire grip portion 20 and the bent portion 20d of the movable electric wire grip portion 20 come into contact with or approach each other at the contact portion c in a state of being slightly displaced in the left-right direction. Even when the diameter of the electric wire E is small, the electric wire E can be gripped by the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20 without any trouble. Further, when the tip bending portions 20e and 20e (curved portions 20h) come into contact with the arcuate portion in the circumferential direction of the electric wire, the concentration of bending stress on the electric wire E in contact with the rhombic portion 20g at the tip is alleviated, and the electric wire is damaged. Can be prevented.

The operator rotates the hexagonal wrench to the right, and the left and right electric wire gripping portions 20 and 20 (contact portion 23) of the electric wire receiving portion 12 and the left and right movable electric wire gripping portions 20 of the movable electric wire receiving portion 24, 20 (contact portion 23) is in parallel with the front side side surface Ea and the rear side side surface Eb of the electric wire E as shown in FIG. The left and right movable electric wire gripping portions 20 and 20 on the electric wire receiving portion 24 side are parallel to both front and rear side surfaces Ea and Eb of the electric wire E, and both front and rear side surfaces Ea and Eb of the electric wire E. The rotation of the hexagonal wrench is stopped when is gripped by the left and right electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20 so as to be sandwiched between the two.

In this state, the left electric wire E is a movable electric wire composed of a rearward urging force of the electric wire grip portion 20 made of the left elastic wire on the electric wire receiving portion 12 side and the left elastic wire on the movable electric wire grip portion 24 side. The forward urging force of the grip portion 20 causes the contact portions 23, 23 to come into close contact with the electric wire E (see FIG. 23 (b)), and extends in the axial direction over the predetermined lengths of the contact portions 23, 23. In addition, the electric wire E is strongly sandwiched from the front side surface Ea and the rear side surface Eb.

At the same time, the right electric wire E also has a rearward urging force of the electric wire grip portion 20 made of the right elastic wire material on the electric wire receiving portion 12 side and a movable electric wire grip portion made of the right elastic wire material on the movable electric wire receiving portion 24 side. The forward urging force of 20 causes the contact portions 23, 23 to come into close contact with the electric wire E, and the front side surface Ea of the electric wire E axially extends over the predetermined lengths of the contact portions 23, 23. And it is in a state of being strongly sandwiched from the rear side surface Eb.

When the electric wire E is displaced in the vertical direction at the position where the electric wire E protrudes outward from the electric wire receiving portion 12 and the movable electric wire receiving portion 24 (the right or left electric wire E is horizontal, and only the left or right electric wire E is up and down). In the electric wire gripping portion 20 and the movable electric wire gripping portion 20, since the bent portions 20d and 20d move up and down along the electric wire E, the contact portions along the electric wire E over a predetermined range of length. 23, 23 elastically move up and down, and therefore, the electric wire grip portion 20 and the entire movable electric wire grip portion 20 move up and down along the electric wire E, so that the electric wire grip portion 20 is moved up and down along the electric wire E. , The movable electric wire grip portion 20 can be positioned. In this way, by forming the folded portion into a diamond-shaped portion 20 g, when the electric wire E is displaced outward from the electric wire receiving portion 12 and the movable electric wire receiving portion 24 in the vertical direction, the electric wire gripping portion 20 is movable. The electric wire grip portion 20 can be aligned with the electric wire E, and the movement of the electric wire E can be followed to prevent the concentration of stress on the electric wire E.

At this time, as shown in FIGS. 17 and 21 (a), the front side surface Ea of the electric wire E abuts on the vertical wire portions 20b and 20c of the electric wire grip portions 20 and 20, and the groove 13 The rear side surface Eb is surely supported in the 13 and abuts on the vertical wire portions 20b and 20c of the movable electric wire gripping portions 20 and 20, and is surely supported in the grooves 26 and 26 and does not shift. In FIG. 21 (a), the support configuration on the movable wire receiving portion 24 side is substantially the same as in FIGS. 7 (a) and 7 (b) of the first embodiment, so only the wire receiving portion 12 side is shown (FIG. 21 (a). The same applies to b) and (c)). Further, the needle electrodes 15 and 27 can be surely brought into contact with the conductor (see FIGS. 17 and 21 (a)).

Even when the diameter of the electric wire E is large, as shown in FIG. 21 (b) (the diameter of the electric wire E is 15 mm), the front side surface Ea thereof is the vertical line of the electric wire gripping portions 20 and 20. Together with the portions 20b and 20c, the left and right tapered portions 13c and 13d of the left and right grooves 13 and 13 are abutted and reliably supported, and the rear side surface Eb thereof is the vertical line portion of the movable electric wire grip portions 20 and 20. It is reliably supported by abutting on 20b and 20c and also abutting on the left and right tapered portions 26c and 26d of the left and right groove portions 26 and 26 (see FIGS. 21 (b) and 7 (b)), resulting in a large deviation. There is no such thing. Further, even when the wire diameter is large, the outer circumference of the wire E comes into contact with the left and right tapered portions 13c and 13d and the left and right tapered portions 26c and 26d within the range of the left and right grooves 13 and 26 ( (See FIG. 7 (b)), which is reliably supported and does not shift (see FIGS. 21 (c) and 17). Moreover, when the electric wire E has a large diameter, the electric wire is brought into contact with the tapered portions 13c and 13d and the tapered portions 26c and 26d (see FIG. 7B) to connect the needle electrodes 15 and 27 to the electric wire E. The penetration amount can be controlled, and even if the diameter of the electric wire E changes, the penetration amount of the needle electrodes 15 and 27 into the electric wire E can be kept constant (see FIGS. 21 (a) to 21 (c)). This point is the same in the first embodiment (the same applies to the third to fourth embodiments).

Regardless of the diameter of the electric wire E, the front side surface Ea and the rear side side surface Eb of the electric wire E are supported along the curved portions 20f and 20f along the side surfaces of the rhombic portions 20g and 20g. Therefore, stress does not concentrate on the contact portions between the diamond-shaped portions 20 g and 20 g and the electric wire E.

Further, in such a state, as shown in FIG. 17, the upper and lower needle portions 15a to 15c, 15a'to 15c' of the needle electrode 15 on the wire receiving portion 12 side of the wire stop clip 1 and the needle electrode on the movable wire receiving portion 24 side. The upper and lower needle portions 27a, 27b, 27a', 27b'of 27 can each break the coating of the electric wire E and come into contact with the inner conductor Ec to realize a conductive state with the electric wire stop clip 1. Further, since the electric wire E can be gripped by the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20 over the predetermined lengths of the left and right electric wires E of the needle electrodes 15 and 27 (see FIG. 18), in the vicinity of the needle electrodes. The stress concentration of the electric wire E can be prevented, and the discharge function of the electric wire stop clip 1 is not impaired.

Further, as in the first embodiment, due to the wind, the electric wire E has the central portion M having the largest amplitude in the front-rear direction (arrows F, F'direction) as shown in FIG. 13 (b). Vibrates to. At this time, on the left and right sides of the electric wire stop clip 1 of the electric wire E, the arc-shaped both side surfaces Ea and Eb on the front side and the rear side of the electric wire E are the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20. Since the electric wires E are sandwiched by the contact portions 23 and 23 over a predetermined range in the longitudinal direction (see FIG. 18), even if the electric wire E vibrates in the front-rear direction (arrows F and F'directions), it is composed of an elastic wire. The electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20 include the diamond-shaped portion 20g with the vicinity of one point a and a as a fulcrum in accordance with the vibration of the electric wire E in the front-rear direction. Since the entire portions 23 and 23 are elastically deformed and vibrate in the front-rear direction (directions of arrows F and F'in FIG. 18), the holding portions (axis of the electric wire E) in which the contact portions 23 and 23 of the electric wire E are in contact with each other. Stress does not concentrate on a specific part in the predetermined length in the direction), and therefore, accidents such as deterioration or disconnection of the electric wire E due to vibration can be prevented extremely effectively (for example, in FIG. 18). When the electric wire vibrates in the direction of the arrow F (F'), the electric wire grip portion 20 (movable electric wire grip portion 20) may be deformed in the direction of the arrow F (F'), but the movable electric wire grip portion 20 (electric wire grip portion 20). Is also attached to the front (rear), so that it can follow the deformation of the electric wire E in the F (F') direction and can be deformed).

In particular, the electric wire E is in a state where the front side surface Ea and the rear side side surface Eb are strongly sandwiched by the electric wire gripping portions and the movable electric wire gripping portions 20 and 20 by the spring force facing each other over a predetermined length, and the electric wire E vibrates. Even so, since the electric wire gripping portion having a predetermined length also elastically vibrates together with the electric wire, the stress concentration on the specific portion of the sandwiched portion of the electric wire E can be dispersed. Further, the base ends of the electric wire gripping portions 20 and 20 reliably support the electric wire E, and stress concentration due to the movement of the electric wire E does not occur in the vicinity of the needle electrode and does not affect the discharge function.

Further, the electric wire gripping portion 20 and the movable electric wire gripping portion 20 are configured to sandwich the arc-shaped front side surface Ea and the rear side side surface Eb of the electric wire by the upper line portion 20a and the underline portion 20b in the vertical direction (vertical direction). Therefore, it becomes easy to follow the vibration in the front-rear direction of the electric wire, and the concentration of bending stress on the electric wire can be effectively dispersed (see FIG. 22).

Moreover, the front side surface Ea of the electric wire is held by the two upper line portions 20b and the underline portion 20c in a state of being spaced vertically apart, and the arcuate rear side side surface Eb of the electric wire is held by the two upper line portions 20b and the underline portion 20c. Since the arc-shaped side surface of the electric wire is held with a vertical gap between the two, not only the movement of the electric wire in the front-rear direction (in the directions of arrows F and F'in FIG. 10) but also the movement in the vertical direction (FIG. 10). It can also follow (10 arrows Q, Q'direction), can follow the movements of the electric wire in various directions, and can effectively disperse the concentration of stress on the electric wire.

Further, since the bent portions 20d and 20d of the diamond-shaped portion 20g are hooked on the upper portion and the lower portion of the electric wire E, the entire electric wire grip portion 20 and the movable electric wire grip portion 20 with respect to the vertical movement of the electric wire E are the electric wire E. Since it can move elastically along the wire, it can follow the vertical movement of the wire E and disperse the concentration of stress on the wire. This function is further enhanced in the second embodiment because the diamond-shaped portion g is more likely to be caught by the electric wire E than the first embodiment (U-shaped portion 20a).

As described above, also in the second embodiment, as in the first embodiment, the electric wire E can be reliably sandwiched on both the left and right sides of the electric wire stop clip 1, whereby the electric wire gripping portion 20 and the movable electric wire can be securely sandwiched. Since the grip portion 20 is in close contact with the electric wire E and can follow the vibration of the electric wire E, the bending stress on the electric wire E can be evenly distributed, and the effect of reducing the wear between the wires can be enhanced.

In the second embodiment, the electric wire grip portion is, for example, an elastic wire having a diameter of about 3 mm (spring wire), and as in the first embodiment, stainless steel having excellent corrosion resistance (for example, SUS304WPB) is used, and one end thereof is used. Has a parallel straight portion (contact portion 23) having a width of 9 mm, and a pair of end portions 20b'and 20c' that have been bent into a crank shape are formed at the other end (1). The wire of the book is folded back from the center and molded vertically symmetrically).

In particular, in the second embodiment, the tip is widened in a diamond shape so that the wire grip portion 20 (movable wire grip portion 20) is located outside the center of the wire, and the cross section is arcuate to grip the wire. The electric wire E is guided around the portion 20 (movable electric wire gripping portion 20), and the structure is such that the electric wire E is hard to come off (see FIG. 22).

(Third Embodiment) (see FIGS. 24 to 27)
Next, a third embodiment will be described.
The same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIGS. 24 (a) to 24 (c), the electric wire grip portion 20 (the same applies to the movable electric wire grip portion 20) is made of an elastic wire made of metal, and ends 20b'and 20c'. The shape of the side, that is, the shape of the groove engaging portions 21 and 21 and the insertion portions 22 and 22, is the same as that of the wire grip portion 20 of the first embodiment, but the shape of the folded portion is the same as that of the second embodiment. While the rhombus portion is 20 g (see FIG. 14), the bent portions 20j and 20j are provided without forming the tip bent portion 20e of the rhombus portion 20 g, and the tips of the bent portions 20j and 20j are moved up and down. In the direction, FIG. 24C is different in that the connecting portion 20k connected linearly is provided and the triangular portion 20i having a triangular shape is provided as a whole. Since the four electric wire gripping portions 20 (movable electric wire gripping portions 20) used on the electric wire receiving portion 12 side and the movable electric wire receiving portion 24 side all have the same shape, one electric wire gripping portion 20 will be described.

More specifically, the triangular portion 20i has a direction in which the distance between the overlined portion 20b and the underlined portion 20c is widened from the tip portions of the overlined portion 20b and the underlined portion 20c when viewed from the side view of FIG. 24 (c). After once widening to form a pair of triangular bent portions 20j and 20j, the tip portions of the bent portions 20j and 20j are connected by a connecting portion 20k to form a substantially triangular shape.

Looking at the plan view of FIG. 24B, the pair of bent portions 20j and 20j are not only widened from the tip portions of the overlined portion 20b and the underlined portion 20c, but also the groove engaging portion. By bending in the direction opposite to 21 and 21 (direction of the electric wire E), curved portions 20m and 20m are formed along the circumferential surface of the electric wire E in the axial direction, and the connecting portion 20k is further shown in FIG. 24 (a). As shown in the above, the electric wire E is formed in a curved shape along the surface in the circumferential direction (this curved portion is referred to as a curved portion 20n). As a result, as shown in FIG. 26A, the curved portions 20m and 20m of the triangular portion 20i are along the circumferential surface of the front side surface Ea of the electric wire E in the axial direction, and are formed on the rear side surface Eb of the electric wire E. As shown in FIG. 24A, the curved portion 20n is formed along the circumferential direction of the electric wire E along the circumferential surface in the axial direction.

That is, in the electric wire gripping portion 20 and the movable electric wire gripping portion 20, the overlined portion 2b and the underlined portion 2c, and the tip portions of the overlined portion 2b and the underlined portion 2c are formed with the folded portion. The folded portion widens the distance between the tip of the overlined portion 2b and the tip of the underlined portion 2c, and at the same time, from the tip of the overlined portion 2b and the tip of the underlined portion 2c in the direction of the electric wire E. Bending portions 20j and 20j are formed, respectively, and a connecting portion 20k connecting the tip portions of the bent portions 20j and 20j is formed, and the connecting portion 20k is curved along the circumferential direction of the electric wire E. It is formed in a shape (curved portion 20n), and the folded portion is formed as a triangular portion 20i as a whole.

Further, as shown in FIG. 24B, the vertical line portions 20b and 20c are rearward or forward with respect to the left and right horizontal lines L1 and L1 with a rearward inclination angle θ or a forward inclination angle θ (for example, θ = about 10 degrees). The point of inclination is the same as that of the electric wire grip portion 20 of the first embodiment (see FIG. 25 (a)).

Then, as shown in FIGS. 25 and 26, the base end portions (groove engaging portion 21, insertion portion 22) of the electric wire gripping portions 20 and 20 are fixed to the electric wire receiving portion 12 in the same manner as in the first embodiment. As shown in FIG. 27A, the vertical line portions 20b and 20c and the triangular portions 20i and 20i were fixed so as to be horizontal to the left and right of the electric wire receiving portion 12 and fixed to the electric wire receiving portion 12. In this state, the left and right vertical line portions 20b and 20c are inclined rearward with respect to the left and right horizontal lines L1 and L1 at an inclination angle θ (for example, θ = about 10 degrees) (see FIG. 25A).

Further, as shown in FIGS. 25 and 26, the movable electric wire receiving portion 24 has the base end portions (groove engaging portion 21, insertion portion 22) of the movable electric wire gripping portions 20 and 20 in the same manner as in the first embodiment. As shown in FIG. 27B, the vertical line portions 20b and 20c and the triangular portions 20i and 20i are fixed so as to be horizontal to the left and right of the movable electric wire receiving portion 24, and the movable electric wire receiving portion 12 is fixed. The left and right vertical line portions 20b and 20c are inclined forward with respect to the left and right horizontal lines L1 and L1 at an inclination angle θ (for example, θ = about 10 degrees) (see FIG. 25 (a)). ).

Further, as shown in FIG. 25, in such a state, the bent portions 20j and 20j of the triangular portions 20i and 20i are attached so as to be substantially symmetrical with each other so as to be located in directions facing each other. Since the mounting positions of the movable wire gripping portions 20 and 20 of the movable wire receiving portion 24 are closer to the central portion than the mounting positions of the wire gripping portions 20 and 20 of the wire receiving portion 12, the wire gripping portion 20 is described above. , 20 from the positions of the bent portions 20j and 20j, the positions of the bent portions 20j and 20j of the movable electric wire grip portions 20 and 20 are located closer to the central portion.

Further, in the third embodiment, the metal rectangular frame 9 is also changed. As shown in FIGS. 25 (a) and 25 (b), the metal rectangular frame 9 is formed from a position near the lower side of the grooves 13 and 13 of the left and right side plates 12a and 12b of the electric wire receiving portion 12 of the metal rectangular frame 9. Horizontal mounting plates 9e and 9e'are provided in the left-right direction from the left side plate 9c and the right side plate 9d in a range slightly behind the central portion.

Further, the shapes of the needle electrodes 15 and 27 are the same as those of the first and second embodiments, but since they have a centering function of the electric wire E, they will be described here (FIGS. 25 (a) and 25 (b) and the like). The upper needle portion 15a to 15c and the lower needle portion 15a'to 15c'are formed in the needle electrode 15 in the left-right direction. , 15d, 15d, 15d (upper side, the tip edge on the rear side of the tapered part is a metal blade) and the tapered parts 15d', 15d' , 15d'(the lower end edge of the rear side of the tapered portion is a metal blade) is formed. Further, in the needle electrode 27, upper needle portions 27a, 27b and lower needle portions 27a', 27b'are formed in the left-right direction, and between these upper needle portions 27a, 27b and lower needle portions 27a', 27b'. 27c, 27c (upper side, the tip edge on the front side of the tapered part is a metal blade) and the tapered parts 27c', 27c' (lower) as they go forward (toward the front side). The front edge of the tapered portion on the side is a metal blade). The vertical heights of the upper needle portions 15a to 15c, the lower needle portions 15a'to 15c', the upper needle portions 27a, 27b, and the lower needle portions 27a', 27b'are located at the same level.

The horizontal mounting plates 9e and 9e'are rectangular plate-like bodies in the horizontal direction (see FIGS. 25, 26 and 27), and the left and right sides are configured to have the same size. When the electric wire E is sandwiched between the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20, the horizontal mounting plates 9e and 9e'mount the electric wire E on the horizontal mounting plates 9e and 9e'. By placing the electric wire E, the electric wire E can be stably placed and held until it is sandwiched by the electric wire gripping tools 20 and 20 and the movable electric wire gripping tools 20 and 20. The specific operation will be described in the following operation description.

Since the third embodiment is configured as described above, its operation will be described below.

As shown in FIG. 11, the electric wire stopper clip 1 of the third embodiment is fixed on the upper metal fitting 5, and the electric wire receiving portion 12 and the movable electric wire receiving portion 24 are fixed to FIG. 25 (as shown in FIG. 11). a) As shown in (b), the electric wire E does not exist between the electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side and the movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side. However, the wire grip portions 20 and 20 on the wire receiving portion 12 side are all inclined rearward from one point a, a with respect to the straight lines L1 and L1, and the movable wire grip portion on the movable wire grip portion 24 side. It is assumed that both 20 and 20 are inclined forward from one point a, a with respect to the straight line L1.

Next, an electric wire E having a constant diameter is arranged between the electric wire receiving portion 12 and the movable electric wire receiving portion 24 in a direction orthogonal to the longitudinal direction of the metal rectangular frame 9 of the electric wire stop clip 1. At this time, the electric wire E is placed on the horizontal mounting plates 9e and 9e'. In this case, as shown by the two-dot chain line in FIGS. 27 (a) and 27 (b), the electric wire E is mounted on the horizontal mounting plates 9e and 9e', and the electric wires gripping portions 20 and 20 and the movable wires E are movable. It will be located slightly below the wire grips 20 and 20.

After that, the operator fits a hexagon wrench on the head of the bolt B, rotates the hexagon wrench to the right, and rotates the bolt B to the right screw direction. Then, since the bolt B rotates in the right-hand screw direction, the movable electric wire receiving portion 24 gradually approaches the electric wire receiving portion 12 via the female screw portion 25. At this time, the electric wires E (see FIG. 25B) mounted on the horizontal mounting plates 9e and 9e'are scooped up by the tapered portions 15d' and 27c'on the lower side of the needle electrodes 15 and 27. The electric wire E is gradually raised from the horizontal mounting plates 9e and 9e'. At this time, since the triangular portions 20i and 20i of the movable electric wire gripping portions 20 and 20 of the movable electric wire receiving portion 24 are inclined forward, the lower bent portions 20j and 20j are the horizontal mounting plates 9e. , 9e'Abuts on the lower half of the rear side surface Eb of the electric wire E, and the bent portions 20j and 20j move along the electric wire E.

Further, when the operator rotates the bolt B, the triangular portions 20i and 20i of the electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side are inclined rearward, so that the lower bent portion 20j, The 20j comes into contact with the lower half of the front side surface Ea of the electric wire E on the horizontal mounting portions 9e and 9e', and the bent portions 20j and 20j move along the electric wire E.

After that, when the operator further rotates the bolt B in the right-hand screw direction, the electric wire E draws the electric wire E while the tapered portions 15d'and 27c'on the lower side of the needle electrodes 15 and 27 scoop up the electric wire E from the front and back. Gradually raise from the horizontal mounting plates 9e and 9e', and finally, the upper tapered portion 15d (three places in the left-right direction) and the lower tapered portion 15d' (three in the left-right direction) of the needle electrode 15. The center of the needle electrode 15 and the needle electrode 27 due to the upper tapered portion 27c (two locations in the left-right direction) and the lower tapered portion 27c'(two locations in the left-right direction) of the needle electrode 27. It is raised to the position, and the needle electrode 15 and the needle electrode 27 center the electric wire E (see FIG. 26 (b)). That is, the electric wire E is located at the center of the front and rear tapered portions 15d, 15d'and 27c, 27c'. At this point, the tip edges of the tapered portions of the needle electrodes 15 and 27 come into contact with the conductor Ec of the electric wire E.

Finally, as shown in FIGS. 26 (a) and 26 (b) and 27 (a) and 27 (b), the triangular portions 20i and 20i of the left and right wire gripping portions 20 and 20 on the wire receiving portion 12 side. The center of the connecting portion 20k is located at the axial center line L4 of the front side surface Ea of the electric wire E, and the electric wire E is located along the left and right overlined portions 20b and 20b and the underlined portions 20c and 20c, that is. The electric wire E is arranged so that the central portion of the distance between the left and right overlined portions 20b and 20b and the underlined portions 20c and 20c is located at a substantially central position in the longitudinal direction of the front side surface Ea of the electric wire E.

At the same time, as shown in FIG. 27B, in the electric wire E, the center of the connecting portion 20k of the triangular portions 20i and 20i of the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side is the electric wire E. The electric wires E are located along the left and right overlined portions 20b and 20b and the underlined portions 20c and 20c, that is, the left and right overlined portions 20b and 20b. The electric wire E is arranged so that the central portion of the interval between the underlined portions 20c and 20c is located substantially at the center of the rear side surface Eb of the electric wire E in the longitudinal direction.

Then, the front side surface Ea of the electric wire E comes into contact with the left and right upper and lower curved portions 20 m and 20 m of the tips of the electric wire grip portions 20 and 20, and the contact portions of the electric wire grip portions 20 and 20 are brought into contact with the front side surfaces Ea and Ea. It is pushed forward against the urging force on each of the rear sides of 23 and 23, and as shown in FIG. The portion 20b and the underlined portion 20c) are pushed to a state parallel to the front side surface Ea of the electric wire E, and in the parallel state, the rear side urging force is applied to the front side surface Ea of the electric wire E. It is in a state of being strongly contacted (closely attached) to the front side surface Ea of E.

At this time, the front side surface Ea of the electric wire E is guided by the curved portions 20n and 20n of the triangular portions 20i and 20i at both ends of the electric wire grip portions 20 and 20 (see FIGS. 26 (a) and 24 (a)). ), The circumferential arc of the electric wire E is located along the curved portion 20n, whereby the center line L4 of the electric wire E is located at the intermediate portion between the upper line portion 20b and the underline portion 20c of the electric wire grip portions 20 and 20. , The electric wire E is configured so as not to be displaced with respect to the electric wire gripping portions 20 and 20 (see FIGS. 26 (a) and 35 (a)).

Similarly, the rear side edge Eb of the electric wire E is guided by the curved portions 20n and 20n of the triangular portions 20i and 20i at both ends of the movable electric wire grip portions 20 and 20 (FIGS. 26 (a) and 24 (a). ), The circumferential arc of the electric wire E is located along the curved portion 20n, whereby the center line L4 of the electric wire E is the intermediate portion between the upper line portion 20b and the underline portion 20c of the movable electric wire grip portions 20 and 20. It is configured so that the electric wire E does not shift with respect to the movable electric wire gripping portions 20 and 20 (see FIGS. 26 (a) and 35 (a)).

Then, due to the clockwise rotation of the bolt B, the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side (particularly, the triangular portions 20i and 20i at both ends) are placed on the rear side surface of the electric wire E. Each of them abuts on Eb (left and right side surfaces on the movable electric wire receiving portion 24 side), and similarly presses the rear side side surface Eb of the electric wire E forward. At this time, the triangular portions 20i and 20i of the electric wire grip portions 20 and 20 are bent toward the front side side surface Ea side (rear side) of the electric wire E, respectively, and the triangular portions of the movable electric wire grip portions 20 and 20 are formed. The bent portions 20j and 20j of the 20i and 20i are bent along the axial direction of the rear side side surface Eb side (front side) of the electric wire E, respectively, and the connecting portion 20k is along the circumferential direction of the electric wire E. Since it is curved, the upper and lower bent portions 20j and 20j and the connecting portion 20k wrap the front side side surface Ea and the rear side side surface Eb of the electric wire E on the left side, and similarly on the right side, the upper and lower bent portions. The front side surface Ea and the rear side side surface Eb of the electric wire E are wrapped by the 20j, 20j and the connecting portion 20k (see FIG. In the process of sandwiching the electric wire E, the electric wire E can be stably sandwiched by preventing the electric wire E from coming off from the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20.

When the electric wire E is pushed forward by the left and right triangular portions 20i and 20i on the movable electric wire receiving portion 24 side, the electric wire E is pushed forward and the left and right electric wire grip portions of the electric wire receiving portion 12 are pushed. The electric wire E is pushed forward against the backward urging force of 20 and 20, and in this situation, the movable electric wire gripping portions 20 and 20 also have the movable electric wire gripping portions 20 and 20. The electric wire E is pushed forward against the forward urging force, and in a state where the left and right electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side are parallel to the electric wire E, the same is substantially the same. At this time, the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side are in a state parallel to the rear side side surface Eb (the side surface on the movable electric wire receiving portion 24 side) of the electric wire E, and FIG. As shown in the above, the left and right contact portions 23, 23 (left and right upper line portions 20b, underline portion 20c) of the left and right movable electric wire grip portions 20 and 20 are pushed to a state parallel to the rear side side surface Eb of the electric wire E. Then, in the parallel state, the urging force on the front side is applied to the rear side surface Eb of the electric wire E, and the side surface of the electric wire E is strongly contacted (adhered).

At this time, the electric wire E is centered by the needle electrodes 15 and 27 inside the electric wire receiving portion 12 and the movable electric wire receiving portion 24 (see FIG. 26B), but from the electric wire receiving portion 12 and the movable electric wire receiving portion 24. Even if the electric wire E in the left-right direction that goes out to the outside moves, for example, in the vertical direction (even if one of the left or right electric wires E of the electric wire receiving portion 12 and the movable electric wire receiving portion 24 is horizontal, the electric wire receiving portion 12, (Including when the other electric wire E on the right or left side of the movable electric wire receiving portion 24 moves in the vertical direction), the upper and lower bent portions 20j and 20j are front and rear on the front side side surface Ea and the rear side side surface Eb of the electric wire E. Since it is positioned so as to wrap from the direction, the electric wire gripping portion 20 and the movable electric wire gripping portion 20 follow the vertical movement of the electric wire E and elastically move in the vertical direction including the contact portions 23 and 23. Can be done and will not come off from the wire E. This function is enhanced as compared with the first embodiment because the triangular portion 20i is more likely to be caught by the electric wire E than the first embodiment (U-shaped portion 20a).

Further, as shown in FIG. 26A, the bent portion 20j of the electric wire gripping portion 20 and the bent portion 20j of the movable electric wire gripping portion 20 are slightly displaced in the left-right direction at the proximity portion c'. Since they are close to each other or come into contact with each other, the electric wire E can be gripped by the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20 without any problem even when the diameter of the electric wire E is small. Further, when the curved portion 20n comes into contact with the arc portion in the circumferential direction of the electric wire E, the concentration of bending stress on the electric wire E in contact with the triangular portion 20i at the tip can be alleviated, and the electric wire can be prevented from being damaged.

The operator rotates the hexagonal wrench to the right, and the left and right electric wire gripping portions 20 and 20 (contact portion 23) of the electric wire receiving portion 12 and the left and right movable electric wire gripping portions 20 of the movable electric wire receiving portion 24, 20 (contact portion 23) is in parallel with the front side side surface Ea and the rear side side surface Eb of the electric wire E as shown in FIG. The left and right movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side are parallel to both front and rear side surfaces Ea and Eb of the electric wire E, and both front and rear side surfaces of the electric wire E. When Ea and Eb are gripped so as to be sandwiched between the left and right electric wire grip portions 20 and 20 and the movable electric wire grip portions 20 and 20, the rotation of the hexagonal wrench is stopped.

In this state, the left electric wire E is a movable electric wire composed of a rearward urging force of the electric wire grip portion 20 made of the left elastic wire material on the electric wire receiving portion 12 side and the left elastic wire material on the movable electric wire receiving portion 24 side. Due to the forward urging force of the grip portion 20, the contact portions 23, 23 are brought into close contact with the electric wire E (see FIG. 26 (a)), and the contact portions 23, 23 are in axial direction over a predetermined length. In addition, the electric wire E is strongly sandwiched from the front side surface Ea and the rear side surface Eb.

At the same time, the right electric wire E also has a rearward urging force of the electric wire grip portion 20 made of the right elastic wire material on the electric wire receiving portion 12 side and a movable electric wire grip portion made of the right elastic wire material on the movable electric wire receiving portion 24 side. The forward urging force of 20 causes the contact portions 23, 23 to come into close contact with the electric wire E, and the front side surface Ea of the electric wire E axially extends over the predetermined lengths of the contact portions 23, 23. And it is in a state of being strongly sandwiched from the rear side surface Eb.

Further, at this time, as shown in FIGS. 26 (b) and 21 (a), the electric wire E is in contact with the vertical line portions 20b and 20c of the electric wire grip portions 20 and 20 and the front side surface Ea is in contact with the electric wire grip portions 20 and 20. It is securely supported in the grooves 13 and 13, and its rear side surface Eb abuts on the vertical wire portions 20b and 20c of the movable electric wire gripping portions 20 and 20 and is surely supported and displaced in the grooves 26 and 26. There is no. Further, the needle electrodes 15 and 27 can be surely brought into contact with the conductor (see FIGS. 26 (b) and 21 (a)).

Even when the diameter of the electric wire E is large, as shown in FIGS. 21 (b) and 21 (c), the electric wire E can be reliably supported as in the second embodiment. However, the amount of the needle electrodes 15 and 27 entering the electric wire E can be controlled, and the amount of the needle electrodes 15 and 27 entering the electric wire E can be kept constant even if the diameter of the electric wire changes (FIG. 21 (FIG. 21). a)-(c)). This point is the same in the third embodiment.

Then, regardless of the diameter of the electric wire E, the front side surface Ea and the rear side side surface Eb of the electric wire E are supported along the curved portions 20n and 20n along the side surface of the electric wire E of the triangular portions 20i and 20i. Therefore, stress does not concentrate on the contact portions between the triangular portions 20i and 20i and the electric wire E.

Further, in such a state, as shown in FIG. 26B, the upper and lower needle portions 15a to 15c, 15a'to 15c' of the needle electrode 15 on the wire receiving portion 12 side of the wire stop clip 1 and the movable wire receiving portion 24 side. The upper and lower needle portions 27a, 27b, 27a', 27b'of the needle electrode 27 of the above can break the coating of the electric wire E and come into contact with the inner conductor Ec, respectively, to realize a conductive state with the electric wire stop clip 1. Further, since the electric wire E can be gripped by the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20 over the predetermined lengths of the left and right electric wires E of the needle electrodes 15 and 27 (see FIG. 26A), the needle. The stress concentration of the electric wire E in the vicinity of the electrode can be prevented, and the discharge function of the electric wire stop clip 1 is not impaired.

Further, as shown in FIG. 13B, the electric wire E vibrates in the front-rear direction (arrows F, F'direction) with the largest amplitude in the central portion M due to the wind. At this time, on the left and right sides of the electric wire stop clip 1 of the electric wire E, the arc-shaped both side surfaces Ea and Eb on the front side and the rear side of the electric wire E are the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20. Since the contact portions 23, 23 are sandwiched over a predetermined range in the longitudinal direction (see FIG. 26A), the contact portions 23, 23 of the electric wire E are similarly connected to the first and second embodiments. Stress does not concentrate on a specific part of the in contacting holding portion (predetermined length in the axial direction of the electric wire E), and therefore, accidents such as deterioration or disconnection of the electric wire E due to vibration are extremely effectively prevented. (For example, in FIG. 26A, when the electric wire vibrates in the direction of the arrow F (F'), the electric wire grip portion 20 (movable electric wire grip portion 20) is deformed in the direction of the arrow F (F'). However, since the movable electric wire grip portion 20 (electric wire grip portion 20) is also biased forward (rear), it can follow the deformation of the electric wire E in the F (F') direction and can be deformed.

In particular, the electric wire E is in a state where the front side surface Ea and the rear side side surface Eb are strongly sandwiched by the electric wire gripping portions and the movable electric wire gripping portions 20 and 20 by the spring force facing each other over a predetermined length, and the electric wire E vibrates. Even so, since the electric wire gripping portion having a predetermined length also elastically vibrates together with the electric wire, the stress concentration on the specific portion of the sandwiched portion of the electric wire E can be dispersed. In addition, the base ends of the electric wire grips 20 and 20 and the movable electric wire grips 20 and 20 reliably support the electric wire, so that stress concentration due to the movement of the electric wire does not occur near the needle electrode, and the discharge function is provided. Does not affect.

Further, the electric wire gripping portion 20 and the movable electric wire gripping portion 20 are configured to sandwich the arc-shaped front side surface Ea and the rear side side surface Eb of the electric wire by the upper line portion 20a and the underline portion 20b in the vertical direction (vertical direction). Therefore, it becomes easy to follow the vibration in the front-rear direction of the electric wire, and the concentration of bending stress on the electric wire can be effectively dispersed.

Moreover, the front side surface Ea of the electric wire is held by the two upper line portions 20b and the underline portion 20c in a vertically spaced state, and the arcuate rear side side surface Eb of the electric wire is underlined with the two upper line portions 20b. Since the arcuate side surface of the electric wire is held by the portion 20c with a space in the vertical direction, not only the movement of the electric wire in the front-rear direction (in the directions of arrows F and F'in FIG. 10) but also in the vertical direction, for example. It is possible to follow the movement of the electric wire (in the directions of arrows Q and Q'in FIG. 10), to follow the movement of the electric wire in various directions, and to effectively disperse the concentration of stress on the electric wire.

In particular, in the third embodiment, similarly to the second embodiment, the upper and lower bent portions 20j and 20j are positioned so as to wrap the front side side surface Ea and the rear side side surface Eb of the electric wire E from the front-rear direction. Since the bent portions 20j and 20j are hooked on the front and back of the electric wire E, the electric wire gripping portion 20 and the movable electric wire gripping portion 20 follow the vertical movement of the electric wire E to form the contact portions 23 and 23. It can move elastically in the vertical direction including it, and does not come off from the electric wire E.

As described above, also in the third embodiment, as in the first and second embodiments, the electric wire E can be reliably sandwiched on both the left and right sides of the electric wire stop clip 1, whereby the electric wire gripping portion 20 and the electric wire gripping portion 20 can be sandwiched. Since the movable electric wire grip portion 20 can adhere to the electric wire E and follow the vibration of the electric wire E, the bending stress on the electric wire E can be evenly distributed and the effect of reducing the wear between the wires can be enhanced.

In the third embodiment, the electric wire grip portion is, for example, an elastic wire having a diameter of about 3 mm (spring wire), and as in the first embodiment, stainless steel having excellent corrosion resistance (for example, SUS304WPB) is used, and one end thereof is used. Has a parallel straight portion (contact portion 23) having a width of 9 mm, and a pair of end portions 20b'and 20c' that are bent in a crank shape are formed at the other end (1). The wire of the book is folded back from the center and molded vertically symmetrically).

(Fourth Embodiment) (See FIGS. 28 to 31)
Next, a fourth embodiment will be described.
The same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIGS. 28 (a) to 28 (c), the wire grip portion 20 has a point formed of an elastic wire made of metal and a shape on the end portions 20b'and 20c', that is, groove engagement. The shapes of the portions 21 and 21 and the insertion portions 22 and 22 are the same as those of the wire gripping portion 20 of the first embodiment, but the shape of the folded portion is the triangular portion 20i (see FIG. 24) in the third embodiment. On the other hand, the bent portion 20j on the upper line portion 20b side of the triangular portion 20i is once in the direction of widening the distance between the upper line portion 20b and the underline portion 20c from the other end of the upper line portion 20b, as in the third embodiment. Although the width is widened, the underlined portion 20c is linearly extended to form the straight portion 20q without forming the bent portion 20j on the underlined portion 20c side, so that the straight portion 20q is connected to the connecting portion 20k. Constitute. The folded portion configured in this way is referred to as an R-shaped portion 20p.

More specifically, the above-mentioned bent portion 20j is not only widened from the overlined portion 20b (distance between the overlined portion 20b and the underlined portion 20c) in the plan view of FIG. 28 (b). By bending in the direction opposite to the groove engaging portions 21 and 21 (in the direction of the electric wire E), the overlined portion 20b is formed with a curved portion 20m along the peripheral surface in the width direction of the electric wire E, and further described above. As shown in FIG. 28A, the connecting portion 20k has a curved portion 20n formed along the surface of the electric wire E in the circumferential direction. As a result, as shown in FIG. 30A, the curved portion 20m on the upper line portion 20b side of the R-shaped portion 20p is along the circumferential surface of the front side surface Ea of the electric wire E in the axial direction and is behind the electric wire E. As shown in FIG. 28A, a curved portion 20n along the circumferential direction of the electric wire E is formed along the peripheral surface of the side side surface Eb along the axial direction. As shown in FIGS. 28 (a) and 28 (c), the lower curved portion of the connecting portion 20k and the curved portion 20n is referred to as a lower curved portion 20r (see FIG. 35 (b)).

Further, in the shape of the electric wire grip portion 20 of the fourth embodiment, the electric wire grip portion 20 on the left side and the movable electric wire grip portion 20 on the right side have the same shape, and the electric wire grip portion 20 on the right side and the movable electric wire grip portion 20 on the left side have the same shape. The left and right electric wire grips 20 and 20 (same for the movable electric wire grips 20 and 20) have a symmetrical shape.

Further, as shown in FIG. 28B, the vertical line portions 20b and 20c are rearward or forward with respect to the left and right horizontal lines L1 and L1 with a rearward inclination angle θ or a forward inclination angle θ (for example, θ = about 10 degrees). The point of inclination is the same as that of the electric wire grip portion 20 of the first embodiment (see FIG. 29 (a)).

Then, as shown in FIGS. 29 and 30, the base end portions (groove engaging portion 21, insertion portion 22) of the electric wire gripping portions 20 and 20 are fixed to the electric wire receiving portion 12 in the same manner as in the first embodiment. As shown in FIGS. 29 (a) and 29 (b), the upper and lower wire portions 20b and 20c and the R portions 20p and 20p are fixed so as to be horizontal to the left and right of the electric wire receiving portion 12, and the entire four wires are folded. With the curved portion 20j on the upper side and the straight portion 20q on the lower side, the left and right vertical line portions 20b and 20c are inclined rearward with respect to the left and right horizontal lines L1 and L1. It is inclined (for example, θ = about 10 degrees) (see FIG. 29 (a)).

Further, as shown in FIGS. 29A and 29B, the movable electric wire receiving portion 24 has the base end portions (groove engaging portion 21, insertion portion 22) of the movable electric wire gripping portions 20 and 20 in the first embodiment. As shown in FIGS. 29 (a) and 29 (b), the upper and lower wire portions 20b and 20c and the R-shaped portions 20p and 20p are fixed so as to be horizontal to the left and right of the movable electric wire receiving portion 24. (The bent portion 20j is on the upper side), and in a state of being fixed to the movable electric wire receiving portion 24, the left and right vertical line portions 20b and 20c have an inclination angle θ (for example, θ = about) forward with respect to the left and right horizontal lines L1 and L1. It is tilted to 10 degrees).

Further, as shown in FIG. 29, in such a state, the bent portions 20j and 20j of the overlined portions 20b of the R-shaped portions 20p and 20p are located in directions facing each other so as to be substantially symmetrical with each other. It is attached. Since the mounting positions of the movable wire gripping portions 20 and 20 of the movable wire receiving portion 24 are closer to the central portion than the mounting positions of the wire gripping portions 20 and 20 of the wire receiving portion 12, the wire gripping portion 20 is described above. , 20 from the positions of the bent portions 20j and 20j, the positions of the bent portions 20j and 20j of the movable electric wire grip portions 20 and 20 are located closer to the central portion.

Further, in the fourth embodiment, as in the third embodiment, as shown in FIGS. 29 to 31, the grooves of the left and right side plates 12a and 12b of the electric wire receiving portion 12 of the metal rectangular frame 9 Horizontal mounting plates 9e and 9e'are provided in the left-right direction from the left side plate 9c and the right side plate 9d in a range slightly behind the center of the metal rectangular frame 9 from the lower vicinity positions of 13 and 13. ing.

When the electric wire E is sandwiched between the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20, the horizontal mounting plates 9e and 9e'mount the electric wire E on the horizontal mounting plates 9e and 9e'. By placing the electric wire E, the electric wire E can be stably placed and held until it is sandwiched by the electric wire gripping tools 20 and 20 and the movable electric wire gripping tools 20 and 20. The specific operation will be described in the following operation description.

Since the fourth embodiment is configured as described above, its operation will be described below.

As shown in FIG. 11, the electric wire stopper clip 1 of the fourth embodiment is fixed on the upper metal fitting 5, and the electric wire receiving portion 12 and the movable electric wire receiving portion 24 are fixed in FIG. 29 (as shown in FIG. 11). a) As shown in (b), the electric wire E does not exist between the electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side and the movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side. However, the wire grip portions 20 and 20 on the wire receiving portion 12 side are all inclined rearward from one point a, a with respect to the straight lines L1 and L1, and the movable wire grip portion on the movable wire grip portion 24 side. It is assumed that both 20 and 20 are inclined forward from one point a, a with respect to the straight line L1.

Further, the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20 both have the electric wire receiving portion 12 so that the bent portion 20j is on the upper side (the straight portion 20q is on the lower side). It is attached to the movable electric wire receiving portion 24.

Next, an electric wire E having a constant diameter is arranged between the electric wire receiving portion 12 and the movable electric wire receiving portion 24 in a direction orthogonal to the longitudinal direction of the metal rectangular frame 9 of the electric wire stop clip 1. At this time, the electric wire E is placed on the horizontal mounting plates 9e and 9e'. In this case, as shown by the two-dot chain line in FIGS. 29 (b) and 31 (a) and (b), the electric wire E is placed on the horizontal mounting plates 9e and 9e'and grips the electric wire. The straight portions 20q and 20q of the portions 20 and 20 and the movable electric wire gripping portions 20 and 20 are located exactly near the upper half of the electric wire E.

After that, the operator fits a hexagon wrench on the head of the bolt B, rotates the hexagon wrench to the right, and rotates the bolt B to the right screw direction. Then, since the bolt B rotates in the right-hand screw direction, the movable electric wire receiving portion 24 gradually approaches the electric wire receiving portion 12 via the female screw portion 25. At this time, the electric wires E (see FIG. 29 (b)) mounted on the horizontal mounting plates 9e and 9e'are scooped up by the tapered portions 15d' and 27c'on the lower side of the needle electrodes 15 and 27. The electric wire E is gradually raised from the horizontal mounting plates 9e and 9e'. At this time, since the upper bent portions 20j and 20j of the movable wire gripping portions 20 and 20 of the movable wire receiving portion 24 and the R-shaped portions 20p and 20p are inclined forward, the lower straight portion 20q , 20q abut from the middle to the upper half of the rear side surface Eb of the electric wire E on the horizontal mounting plates 9e, 9e', and the lower curved portions 20r, 20r are from the middle to the upper half of the electric wire E. Engage in the vicinity of the portion, and the R-shaped portions 20p and 20p move along the electric wire E. This function is enhanced as compared with the first embodiment because the R-shaped portion 20p is more likely to be caught by the electric wire E than the first embodiment (U-shaped portion 20a).

Further, when the operator rotates the bolt B, the R-shaped portions 20p and 20p of the electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side are inclined rearward, so that the lower straight portion 20q, 20q abuts from the middle portion to the upper half of the front side surface Ea of the electric wire E on the horizontal mounting portions 9e, 9e', and the lower curved portions 20r, 20r are from the middle portion to the upper half portion of the electric wire E. Engage in the vicinity, and as a result, the R-shaped portions 20p and 20p move along the electric wire E.

After that, when the operator further rotates the bolt B in the right-hand screw direction, the electric wire E is scooped up by the tapered portions 15d'and 27c'on the lower side of the needle electrodes 15 and 27 from the front and back (FIG. 29 (FIG. 29). b)), the electric wire E is gradually raised from the horizontal mounting plates 9e and 9e', and finally, the upper tapered portion 15d (three points in the left-right direction) and the lower tapered portion 15d of the needle electrode 15 are raised. '(3 places in the left-right direction) and the upper tapered part 27c (2 places in the left-right direction) and the lower tapered part 27c' (2 places in the left-right direction) of the needle electrode 27 make the needle electrode 15 Is raised to the center position of the needle electrode 27, and the needle electrode 15 and the needle electrode 27 center the electric wire E (see FIG. 30B).

Then, the curved portions 20n and 20n of the R-shaped portions 20p and 20p of the left and right electric wire grip portions and the curved portions 20n and 20n of the R-shaped portions 20p and 20p of the left and right movable electric wire grip portions are finally shown in the figure. As shown in 30 (a) and 30 (b) and FIGS. 31 (a) and 31 (b), the substantially center of the connecting portion 20k of the R-shaped portions 20p and 20p of the left and right wire gripping portions 20 and 20 on the wire receiving portion 12 side. Is located at the axial center line L4 of the front side surface Ea of the electric wire E, and the electric wire E is located along the left and right upper line portions 20b and 20b and the underlined portions 20c and 20c, that is, the left and right upper line portions. The electric wire E is arranged so that the central portion of the interval between the 20b and 20b and the underlined portions 20c and 20c is located at a substantially central position in the longitudinal direction of the front side surface Ea of the electric wire E.

At the same time, as shown in FIG. 31B, in the electric wire E, the substantially center of the connecting portion 20k of the R-shaped portions 20p and 20p of the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire receiving portion 24 side is located. It is located at the center line L4 in the axial direction of the rear side surface Eb of the electric wire E, and the electric wire E is located along the left and right overlined portions 20b and 20b and the underlined portions 20c and 20c, that is, the left and right overlined portions 20b, The electric wire E is arranged so that the central portion of the distance between the 20b and the underlined portions 20c and 20c is located substantially at the central position in the longitudinal direction of the rear side surface Eb of the electric wire E.

When the operator rotates the hexagon wrench to the right, the fourth embodiment is the same as the third embodiment. That is, when the electric wire E is pushed forward by the left and right R-shaped portions 20p and 20p on the movable electric wire receiving portion 24 side, the electric wire E is pushed forward and the left and right of the electric wire receiving portion 12 are pushed. The electric wire E is pushed forward against the backward urging force of the electric wire grips 20 and 20, and in this situation, the movable electric wire grips 20 and 20 also have these movable electric wire grips 20. , 20 pushes the electric wire E forward against the forward urging force of 20, 20 in a state where the left and right electric wire gripping portions 20 and 20 on the electric wire receiving portion 12 side are parallel to the electric wire E. At about the same time, the left and right movable electric wire gripping portions 20 and 20 on the movable electric wire gripping portion 24 side became parallel to the rear side side surface Eb (the side surface on the movable electric wire gripping portion 24 side) of the electric wire E, and FIG. As shown in (a), the left and right contact portions 23, 23 (left and right upper line portions 20b, underline portion 20c) of the left and right movable electric wire grip portions 20 and 20 are parallel to the rear side surface Eb of the electric wire E. It is pushed to the state, and in the parallel state, the urging force on the front side is applied to the rear side side surface Eb of the electric wire E, and the side surface of the electric wire E is strongly contacted (closely attached) (see FIG. 30B). ).

When the operator rotates the hexagonal wrench to the end, in this state, the electric wire E faces the rear of the electric wire grip portion 20 made of the elastic wire on the electric wire receiving portion 12 side, as in the third embodiment. The contact portions 23 and 23 are brought into close contact with the electric wire E by the urging force and the forward urging force of the movable electric wire grip portion 20 made of the elastic wire material on the movable electric wire receiving portion 24 side (see FIG. 30A). Over the predetermined length of each of the contact portions 23, 23, the electric wire E is strongly sandwiched from the front side side surface Ea and the rear side side surface Eb of the electric wire E. Other actions are the same as in the third embodiment (see FIG. 35 (b)).

As described above, also in the fourth embodiment, the electric wire E can be reliably sandwiched on both the left and right sides of the electric wire stop clip 1 as in the first to third embodiments, whereby the electric wire gripping portion 20 and the electric wire gripping portion 20 can be sandwiched. Since the movable electric wire grip portion 20 can adhere to the electric wire E and follow the vibration of the electric wire E, the bending stress on the electric wire E can be evenly distributed and the effect of reducing the wear between the wires can be enhanced.

In the fourth embodiment, the electric wire grip portion is, for example, an elastic wire having a diameter of about 3 mm (spring wire), and as in the first embodiment, stainless steel having excellent corrosion resistance (for example, SUS304WPB) is used, and one end thereof is used. Is bent into an R shape, for example, it has a parallel straight portion (contact portion 23) having a width of 9 mm, and a pair of end portions 20b'and 20c' that are bent into a crank shape are formed at the other end.

(Fifth Embodiment)
Next, the fifth embodiment will be described with reference to FIG.
In the electric wire gripping portion 20 of the fifth embodiment, the groove engaging portions 21 and 21 are formed, but the ends of the groove engaging portions 21 and 21 are connected by the connecting portion 20s in a U shape. A folded portion is not formed at the right angle and the tip thereof, and the wire E is bent from the overline portion 20b along the circular arc in the circumferential direction (the portion along the arc is referred to as the curved portion 20n), and the overline portion is described above. A long bent portion 20u bent in a direction perpendicular to the portion 20b and a short bent portion 20v bent in a direction perpendicular to the long bent portion 20u from the underlined portion 20c are provided. This tip portion is referred to as a Q-shaped portion 20t (see FIG. 36A).

In order to insert and fit the connecting portion 20s, the left and right through holes 19 and 19'of the electric wire receiving portion 12 in FIG. 8 are vertically connected to form vertically long through holes 19 "and 19", and the movable through holes 19 "and 19" in FIG. 6 are formed. By vertically connecting the left and right through holes 30 and 30'of the electric wire receiving portion 24 to form vertically long through holes 30 "and 30", the connecting portions 20s (two on each side) can be inserted and fitted. ..

Further, the overline portions 20b and 20b are inclined at an inclination angle θ (for example, θ = about 10 degrees) with respect to the left and right horizontal lines L1 orthogonal to the groove engaging portions 21 and 21, whereby the electric wire receiving portion 12 and the movable electric wire are inclined. When attached to the receiving portion 24, it is attached so as to be inclined forward or backward as in the first to fourth embodiments.

In order to mount the electric wire gripping portion 20 of the fifth embodiment, the connecting portions 20s and 20s of the two electric wire gripping portions 20 and 20 are connected to the vertically long through holes 19 ", 19" of the electric wire receiving portion 12. The overlined portion 20b and the underlined portion 20c are spread to the left and right so as to be located in the grooves 13 and 13, respectively, and the Q-shaped portions 20t and 20t are located to the left and right of the electric wire receiving portion 12. Install horizontally. At this time, the long bent portions 20u are attached so as to be on the lower side of the electric wire E.

In order to mount the movable electric wire gripping portion 20 of the fifth embodiment on the movable electric wire receiving portion 24, the connecting portions 20s and 20s of the two movable electric wire gripping portions 20 and 20 are attached to the electric wire receiving portion 12. Insert each into the vertically long through holes 30 "and 30", widen the upper line portion 20b and the underline portion 20c to the left and right so as to be located in the grooves 13 and 13, respectively, and expand the Q-shaped portions 20t and 20t to the movable electric wire receiving portion. Install horizontally so that they are located on the left and right sides of 24. At this time, the long bent portions 20u are attached so as to be located from the upper side to the lower side of the electric wire E (see FIG. 36 (b)).

After that, as in the first to fourth embodiments, the electric wire E is placed on the horizontal mounting plates 9e and 9e'so as to be orthogonal to the metal rectangular frame 9, and the hexagon wrench is fitted to the bolt B. Then, by turning it to the right, the electric wire E can be sandwiched between the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20.

When the electric wire E is sandwiched, the long bent portion 20u is in close contact with the electric wire along the circular arc in the circumferential direction, and the short bent portion 20v is due to the sandwiching force of the electric wire grip portions 20 and 20 and the movable electric wire grip portions 20 and 20. Since it rotates in the direction of the arrow R in FIG. 32 (a), the electric wire E can be more firmly sandwiched in the front-rear direction (see FIG. 36 (b)).

In this way, the electric wire E can be firmly sandwiched even if the folded portion does not exist, and when the electric wire E is placed on the horizontal mounting plates 9e, 9e', the needle electrodes 15 and 27 allow the electric wire E to be held. Can be centered. Further, the long bent portion 20u can follow the vertical movement of the electric wire E, and the electric wire E can be reliably gripped. Other actions in the fifth embodiment are the same as those in the first to fourth embodiments. Also in the fifth embodiment, the material of the electric wire grip portion is the same as that in the first to fourth embodiments.

(Sixth Embodiment)
Next, the sixth embodiment will be described with reference to FIGS. 33 and 36 (a).
The electric wire gripping portion 20 of the sixth embodiment is the same as that of the fifth embodiment in that the ends of the groove engaging portions 21 and 21 are connected by the connecting portion 20s in a U shape.

In this sixth embodiment, the folded-back portion is not formed at the tip end, and the straight bending portion 33a inclined in the perpendicular direction and the underlined portion 20c are obliquely upper side in the direction along the arc of the electric wire E from the upper line portion 20b. A straight bending portion 33b inclined in a right angle direction is formed symmetrically in the vertical direction on the diagonally lower side in the direction along the circular arc in the circumferential direction of the electric wire E, and the tip portion is referred to as a Y-shaped portion 33c.

In order to insert and fit the connecting portion 20s, the left and right through holes 19 and 19'of the electric wire receiving portion 12 in FIG. 8 are vertically connected to form vertically long through holes 19 "and 19", and the movable electric wire receiving portion is formed. The point that the connecting portions 20s (two left and right) can be inserted and fitted by vertically connecting the left and right through holes 30 and 30'of the 24 to form vertically long through holes 30 "and 30" is described above. It is the same as the fifth embodiment.

In order to mount the electric wire gripping portion 20 of the sixth embodiment, the connecting portions 20s and 20s of the two electric wire gripping portions 20 and 20 are connected to the vertically long through holes 19 ", 19" of the electric wire receiving portion 12. The Y-shaped portions 33c and 33c are located on the left and right sides of the electric wire receiving portion 12, respectively. Install horizontally.

In order to mount the movable electric wire gripping portion 20 of the sixth embodiment on the movable electric wire receiving portion 24, the connecting portions 20s and 20s of the two electric wire gripping portions 20 and 20 are vertically elongated of the electric wire receiving portion 12. The Y-shaped portions 33c and 33c are expanded to the left and right so that the overlined portions 20b and the underlined portions 20c are located in the grooves 26 and 26, respectively, through the through holes 30 "and 30", respectively. Install horizontally so that it is located on the left and right of.

After that, as in the first to fourth embodiments, the electric wire E is placed on the horizontal mounting plates 9e and 9e'so as to be orthogonal to the metal rectangular frame 9, and the hexagon wrench is fitted to the bolt B. Then, by turning it to the right, the electric wire E can be sandwiched between the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20.

When the electric wire E is sandwiched, the upper and lower linear bent portions 33a and 33b are in close contact with each other along the circular arc in the circumferential direction of the electric wire, so that the electric wire E can be firmly sandwiched in the front-rear direction (FIG. 36 (a)). reference).

In this way, the electric wire E can be firmly sandwiched even if the folded portion does not exist, and when the electric wire E is placed on the horizontal mounting plates 9e, 9e', the needle electrodes 15 and 27 allow the electric wire E to be held. Can be centered. Further, the linear bent portions 33a and 33b can follow the vertical movement of the electric wire E, and the electric wire E can be reliably gripped. Other actions in the sixth embodiment are the same as those in the first to fourth embodiments. Also in the sixth embodiment, the material of the electric wire grip portion is the same as that of the first to fourth embodiments.

(7th Embodiment)
Next, the seventh embodiment will be described with reference to FIG. 34.
The electric wire gripping portion 20 of the seventh embodiment includes an upper electric wire gripping portion 20 inserted into the upper through holes 19 and 19 in the electric wire receiving portion 12, and a lower through hole 19 in the electric wire receiving portion 12. It is composed of a lower wire grip portion 20 inserted through the', 19'. Further, it has connecting tools 34, 34 for connecting the upper and lower wire gripping portions 20, 20 at the tip portions of the upper and lower wire gripping portions 20, 20.

More specifically, the upper wire gripping tool 20 is inserted into the left and right horizontal linear upper line portions 20b and 20b and the through holes 19 and 19 on the proximal end side from the inside of the wire receiving portion 12. On the outside of the insertion portions 22 and 22, the wire receiving portions 12, the connecting portions 33d connecting the portions protruding from the through holes 19 and 19, and the upper and lower wire gripping portions 20 and 20 at the left and right tip portions. From the linear bent portions 33f and 33f that bend in the direction in which the interval becomes narrower to form the connected portions 33e and 33e connected by the connecting tool 34 and then bend diagonally upward along the circumferential direction of the electric wire E. It is configured.

The lower wire gripping tool 20 has insertion portions 22, 22 which are inserted from the inside of the wire receiving portion 12 into the left and right horizontal linear underlined portions 20c, 20c and the through holes 19', 19'on the base end portion side. And, on the outside of the electric wire receiving portion 12, the distance between the connecting portion 33d connecting the portions protruding from the through holes 19'and 19'and the upper and lower electric wire gripping portions 20 and 20 is once narrowed at the left and right tip portions. The connected portions 33e and 33e are bent in the direction of the wire E, and then the linear bent portions 33g and 33g are bent diagonally downward along the circumferential direction of the electric wire E. There is.

In order to attach the electric wire gripping portions 20 and 20 above these to the electric wire receiving portion 12, the left and right linear bent portions 33f and 33f are inserted through the through holes 19 and 19, and the insertion portions 22 and 22 reach the positions shown in FIG. 34. It is inserted, and the left and right linear bent portions 33f and 33f are opened in the left-right direction, and the upper line portions 20b and 20b are positioned horizontally to the left and right. In order to attach the lower wire grip portions 20 and 20 to the wire receiving portion 12, the left and right linear bent portions 33 g and 33 g are inserted through the through holes 19'and 19', and the insertion portions 22 and 22 reach the positions shown in FIG. 34. Insert and open the left and right linear bent portions 33g and 33g in the left and right directions, and position the underlined portions 20c and 20c horizontally to the left and right.

Also in the movable electric wire receiving portion 24, although not shown, the left and right linear bent portions 33f and 33f are inserted through the through holes 30 and 30, and the insertion portions 22 and 22 are inserted to the positions of the grooves 26 and 26 to the left and right. To open the straight bent portions 33f and 33f in the left-right direction to position the upper line portions 20b and 20b horizontally to the left and right, and to attach the lower wire grip portions 20 and 20 to the movable wire receiving portion 24, the left and right The straight bent portions 33 g and 33 g are inserted through the through holes 30'and 30', the insertion portions 22 and 22 are inserted to the positions of the grooves 26 and 26, and the left and right straight bent portions 33 g and 33 g are opened in the left-right direction and underlined. The portions 20c and 20c are positioned horizontally to the left and right.

Then, the connected portions 33e and 33e of the upper and lower wire gripping portions 20 and 20 on the wire receiving portion 12 side are connected by the connecting tools 34 and 34, and the movable wire gripping portions 20 and 20 on the movable wire receiving portion 24 side are connected. The connected tools 33e and 33e may be connected by the connecting tools 34 and 34.

After that, as in the first to fourth embodiments, the electric wire E is placed on the horizontal mounting plates 9e and 9e'so as to be orthogonal to the metal rectangular frame 9, and the hexagon wrench is fitted to the bolt B. Then, by turning it to the right, the electric wire E can be sandwiched between the electric wire gripping portions 20 and 20 and the movable electric wire gripping portions 20 and 20.

When the electric wire E is sandwiched, the upper and lower linear bent portions 33f and 33g are in close contact with each other along the circular arc in the circumferential direction of the electric wire, so that the electric wire E can be firmly sandwiched in the front-rear direction.

In this way, the electric wire E can be firmly sandwiched even if the folded portion does not exist, and when the electric wire E is placed on the horizontal mounting plates 9e, 9e', the needle electrodes 15 and 27 allow the electric wire E to be held. Can be centered. Further, the linear bent portions 33f and 33g can follow the vertical movement of the electric wire E, and the electric wire E can be reliably gripped. Other actions in the seventh embodiment are the same as those in the first to fourth embodiments. Further, the material of the electric wire gripping portion 20 in the seventh embodiment is the same as that in the first to fourth embodiments.

(Experimental example)
The wire stop clips 1 and 1 (of the first embodiment) according to the present invention using the electric wire grip portion made of the elastic wire and the movable wire grip portion 20 are fixed on the insulators 6 and 6, respectively, and the wire stop clip 1 The electric wire E (about 1.4 m, diameter about 10 mm) is gripped between 1 and 1 by the above method, the center of the electric wire E is connected to the tip of the rod of the hydraulic cylinder, and both amplitudes (single amplitude) are used in the hydraulic cylinder. Repeated a reciprocating operation (about 15 reciprocations / minute) of θ = about 4 degrees from the center.

As a comparative example, under the same conditions, an electric wire grip portion made of elastic wire and an electric wire stop clip that does not use the movable electric wire grip portion 20 are fixed on the insulators 6 and 6, and the center of the electric wire E is the rod of the hydraulic cylinder. It was connected to the tip and the experiment was conducted under the same conditions.

As a result of the experiment, in the case of the electric wire stop clip in which the electric wire grip portion and the movable electric wire grip portion 20 are not used, the displacement of the amplitude is expanded and the wire is broken after about 20,000 times, whereas the electric wire stop clip according to the present invention is used. In this case, the amplitude displacement was expanded at about 200,000 times.

The number of reciprocating movements leading to the expansion of the amplitude displacement is about 10 times that of the conventional wire stop clip 1 of the present invention, and the stress concentration on the grip portion of the wire E is dispersed. It was possible to confirm that the electric wire could be prevented from being broken or damaged.

In the present invention, as described above, the crank-shaped bent portion (base end portion) of the electric wire grip portion 20 is formed through the through holes 19, 19'of the electric wire receiving portion 12, and the through holes 30, 30'of the movable electric wire receiving portion 24. The electric wire gripping portion (movable electric wire gripping portion) 20 is a parallel straight line portion (contact portion 23) having an angle of about 10 degrees, and in the first embodiment, the U-shaped portion 20a, the second In the embodiment, it is composed of a diamond-shaped portion 20 g, and in the third embodiment, it is composed of a triangular portion 20i. When the bolt B is tightened and the electric wire grip portion (movable electric wire grip portion) 20 is aligned with the electric wire E, a repulsive force of a spring is generated in the electric wire grip portion (movable electric wire grip portion) 20. Further, the repulsive force of the electric wire gripping portion (movable electric wire gripping portion) 20 is also generated by the vibration of the electric wire E. Due to the repulsive force of the springs of the electric wire gripping portion 20, the radius of curvature of the electric wire E when the electric wire E is vibrated by the wind is increased, and the bending stress is dispersed to reduce the locally generated fatigue accumulation on the electric wire E. The structure was used.

Further, when a local lateral pressure is applied to the electric wire due to the vibration of the electric wire, the wear between the stranded wires in the electric wire E progresses, and the stranded wire is seized and fixed, so that the degree of freedom of the stranded wire is impaired and the stranded wire (the stranded wire ( It becomes a factor of accelerating fatigue failure of electric wires).

Therefore, the spring steel wire (elastic wire) was formed in a parallel and U-shaped or diamond-shaped or triangular shape, avoiding the center of the wire conductive portion (for example, composed of one steel core and six aluminum strands) that is most susceptible to lateral pressure. The upper and lower elastic materials (electric wire gripping portion, movable electric wire gripping portion 20) are brought into line contact with the covering portion of the electric wire E and extended to reduce the lateral pressure.

With the above configuration, the fatigue strength due to electric wire vibration can be extended about 10 times as compared with the conventional case.

Further, the electric wire gripping portion 20 has a structure that cannot be removed by inserting the wire gripping portions 20 into the through holes 19, 19, 30, 30'and then attaching the needle electrodes 15 and 27 with rivet caulking (metal fittings 18). Further, for each wire size, the contact state between the wire grip portion 20 and the metal fitting slopes (tapered portions 13c, 13d, 26c, 26d) and the coating of the wire E, and the needle electrodes 15 and 27 and the wire conducting portion (conductor Ec) at that time. As shown in FIG. 21, the contact state (cut state) of the electric wire E is 10 mm in diameter (see FIG. 21 (a)) and 15 mm in diameter (see FIG. 21 (b)). The diameter of the large-diameter electric wire E is 19 mm (see FIG. 21 (c)), which is brought into contact with the 20b and 20c. A control function was added so that the needle electrodes 15 and 27 do not cut too much into the electric wire E according to the size.

Further, as described above, in the present invention, the holding arc plate of the conventional device is eliminated, and instead, an electric wire grip portion (movable electric wire grip portion) 20 formed of an elastic wire (spring steel material) is arranged (FIGS. 1, FIG. 17, etc.). reference).

A structure in which the electric wire gripping portion (movable electric wire gripping portion) 20 grips the electric wire E over a predetermined length to disperse the concentrated portion of bending stress and wear between wires as compared with the conventional device, and reduce the influence of fatigue fracture. And said.

Further, the electric wires E on both sides of the electric wire stop clip 1 are sandwiched between the front side side surface Ea and the rear surface side side surface Eb by the electric wire gripping portion 20 made of the elastic wire and the movable electric wire gripping portion 20 for a predetermined length. Even if E vibrates in the front-rear direction or the like, the electric wire grip portion 20 and the movable electric wire grip portion 20 are elastically deformed in accordance with the vibration of the electric wire E, so that stress may be concentrated on a specific portion of the sandwiched portion of the electric wire E. It is possible to effectively prevent breakage and breakage of the electric wire E.

Further, the electric wire E is composed of a plurality of aluminum strands or a plurality of aluminum strands and a steel core, and the aluminum strands are stranded wires. As the wire size increases, the number of aluminum wires increases. Alternatively, the thickness of the aluminum wire and steel core increases. Therefore, the flexibility of the electric wire is higher as the electric wire size is smaller. Therefore, according to the present invention, the smaller the size of the electric wire, the higher the effect of dispersing stress concentration, and the more remarkable the effect of extending the life of the electric wire.

Further, by forming the folded portion into a U-shaped portion 20a, the simple shape of the electric wire gripping portion (movable electric wire gripping portion) 20 prevents stress concentration in a specific portion of the pinching portion of the electric wire E, and also prevents stress concentration. It is possible to prevent line wear and prevent breakage and breakage of electric wires.

Further, by providing the reverse portion H on the U-shaped portion 20a, the portions (contact portion 23, vertical wire portions 20b, 20c) reciprocating up and down of the electric wire grip portion (movable electric wire grip portion) 20 are on the side surface of the electric wire E. , It adheres over a predetermined range, so that the electric wire can be securely sandwiched.

Further, by forming the folded portion to the rhombus portion 20 g, the center line L4 in the axial direction of the electric wire E can be aligned with the tip bent portion 20e of the rhombus portion 20 g, and the electric wire E can be more reliably sandwiched.

Further, since the curved connecting portion 20k of the triangular portion 20i can be aligned with the circumferential direction of the electric wire E, and the front side side surface Ea and the rear side side surface Eb of the electric wire E can be wrapped by the triangular portion 20i. Since the electric wire E can be reliably sandwiched and the electric wire E can be sandwiched by the electric wire gripping portion 20 made of the elastic wire and the movable electric wire gripping portion 20 for a predetermined length, a specific portion of the sandwiching portion of the electric wire E can be sandwiched. The stress does not concentrate on the wire, and the breakage and breakage of the electric wire can be suppressed.

Further, since the center of the electric wire E in the axial direction is aligned with the tip bent portion 20e and the electric wire E can be wrapped by the pair of curved portions 20f and 20f, the electric wire E grips the electric wire in the process of sandwiching the electric wire E. It is possible to prevent the electric wire E from coming off from the portion 20 and to securely hold the electric wire E.

Further, in the electric wires E on both the left and right sides of the electric wire stop clip 1, the left and right front side surfaces Ea of the electric wire E and the left and right rear side surfaces Eb can be sandwiched by a pair of left and right upper and lower wire portions 20b and 20c, respectively. The electric wires E on both the left and right sides of the electric wire stopper clip 1 can be stably sandwiched, and the concentration of stress on a specific portion of the electric wire E in the sandwiching portion can be suppressed.

Further, by gripping the electric wire E with the electric wire gripping portion 20 and the movable electric wire gripping portion 20, the needle electrodes 15 and 27 can be electrically conducted to the conductor of the electric wire E at the same time, and the grounding route in the event of a lightning strike can be easily performed. Can be configured. Further, since the electric wire E can be gripped by the electric wire gripping portion 20 and the movable electric wire gripping portion 20 over a predetermined length of the electric wires on the left and right of the needle electrode, stress concentration of the electric wire in the vicinity of the needle electrodes 15 and 27 can be prevented. , The discharge function of the wire stop clip is not impaired.

Further, in a state where the electric wire E is sandwiched between the left and right electric wire grip portions 20 and the left and right movable electric wire grip portions 20, the front side side surface Ea and the rear side side surface Eb of the electric wire E are made of elastic wires of the left and right electric wire grip portions 20. The rearward urging force and the forward urging force due to the elastic wires of the left and right movable front grip portions 20 are always acting, and the electric wire E is securely held on both the left and right sides of the electric wire stop clip 1. 20 and 20 of both electric wire gripping portions (both movable electric wire gripping portions) are in close contact with the electric wire on both the left and right sides of the electric wire stop clip, and the bending stress on the electric wire can be dispersed. Further, by constantly applying the urging force, the bending stress can be reliably suppressed even with a vibration having a small amplitude.

Further, when the electric wire E is placed on the horizontal mounting portions 9e and 9e', when the movable electric wire grip portions 20 and 20 are brought close to the electric wire grip portions 20 and 20, the electric wire E is placed on the first and second needle electrodes 15. , 27 can be scooped up and centered. Further, when the electric wire E moves in the vertical direction or the like at a position where the electric wire E protrudes from the electric wire receiving portion 12 and the movable electric wire receiving portion 24 in the left-right direction, the electric wire grip portion 20 and the movable electric wire grip portion 20 are elastic. It can move in the vertical direction along the electric wire E, and even when the electric wire E at the position protruding from the electric wire receiving portion 12 and the movable electric wire receiving portion 24 in the left-right direction moves in the vertical direction, the electric wire gripping portion 20 and the movable electric wire gripping portion 20 and the movable electric wire E. Since the electric wire gripping portion 20 can move along the movement of the electric wire E, the electric wire E can be gripped more effectively, and the concentration of stress can be effectively prevented.

Further, by providing the electric wire stop clip 1 of the present invention on a plurality of utility poles and holding the electric wire by the electric wire stop clip 1, it is possible to suppress damage or breakage of the electric wire as much as possible due to wind vibration or the like.

In addition, the high-voltage overhead power line can be protected from lightning surges such as lightning strikes.

The horizontal mounting plates 9e and 9e'may be provided on the metal rectangular frame 9 of the U-shaped portion 20a and the diamond-shaped portion 20f of the first and second embodiments. In this case, in the first and second embodiments, the operator may arrange the electric wire E so as to be located between the electric wire grip portions 20 and 20 and the movable electric wire grip portions 20 and 20, or the electric wire E may be arranged horizontally. It may be mounted on the mounting plates 9e, 9e', and the electric wire E may be scooped up and centered by the needle electrodes 15 and 27. Further, in the third to seventh embodiments, the electric wire E is not placed on the horizontal mounting plates 9e, 9e', and the operator puts the electric wire E on the electric wire grip portions 20, 20 and the movable electric wire grip portions 20, 20. It may be arranged so as to be located between them.

According to the electric wire stop clip according to the present invention, it is extremely effective in suppressing the concentration of stress on a specific portion of the sandwiched portion of the electric wire and significantly reducing the breakage and breakage of the electric wire.

1 Wire stop clip 2 Utility pole 3 Arm 5 Upper bracket (metal support)
6 Insulator 9 Metal rectangular frame (metal rectangular frame)
12 Wire receiving parts 12a, 12b Left right plate 13 Groove 15 Needle electrode (1st needle electrode)
15d, 15d'Tapered part 20 Wire gripping part, movable wire gripping part 20a U-shaped part 20b Overlined part 20c Underlined part 20d Bending part 20e Tip bending part 20f Rhombus part 20i Triangular part 20j Bending part 20k Connecting part 20n Curved part 21 Groove engagement part 22 Insertion part 24 Movable wire receiving part 24b, 24c Left right plate 26 Groove 27 Needle electrode (second needle electrode)
27c, 27c'Tapered part 31 Power varistor B Bolt E Electric wire E'Covering Ea Front side side surface Eb Rear side side surface H

Claims (12)

Using a metal rectangular frame as a base, one end is extended upward to form an electric wire receiving part.
Grooves are formed on the left and right side plates of the wire receiving portion.
The electric wire receiving portion has an overlined portion and an underlined portion extending horizontally to the left and right of the electric wire receiving portion, and a folded portion on each tip side of the overlined portion and the underlined portion. A pair of left and right electric wire grips made of elastic wire having a shape are fixed horizontally by each base end portion in a state where each of the folded portions thereof is outwardly engaged with both the grooves.
A metal bolt is pierced on the surface of the base facing the electric wire receiving portion, and the bolt is provided with a metal movable electric wire receiving portion in a screwed state.
Grooves are formed on the left and right side plates of the movable wire receiving portion.
The movable electric wire receiving portion includes an overlined portion and an underlined portion extending horizontally to the left and right of the movable electric wire receiving portion, and a folded portion on each tip side of the overlined portion and the underlined portion. A pair of left and right movable electric wire gripping portions made of an elastic wire having a shape of the above are fixed horizontally by each base end portion in a state where the folded portions thereof are outwardly engaged with the grooves. ,
At the left and right in a state of placing the electrodeposition line along the electrical wire gripping unit, the movable wire receiving portion by rotating the bolt by proximity to the wire receiving portion, right and left and right pair of the electrical wire gripping unit of the above movable electrical wire gripping unit, the wire retaining clip in which both sides of the front and rear of the left and right of the electric wires of the wire receiving portion and said movable wire receiving portion of the electric wire is clamped state of being sandwiched for a predetermined length. The electric wire stopper clip according to claim 1, wherein the electric wire grip portion and the folded portion of the movable electric wire grip portion are U-shaped portions. The electric wire stopper clip according to claim 2, wherein the tip of the U-shaped portion of the electric wire grip portion and the movable electric wire grip portion is formed with a counter portion inclined in a direction away from the electric wire. The electric wire stopper clip according to claim 1, wherein the folded portion of the electric wire grip portion and the movable electric wire grip portion is a diamond-shaped portion. The wire grip portion and the diamond-shaped portion of the movable electric wire grip portion include a pair of bent portions and one tip bent portion, and the pair of bent portions are formed so as to project in the direction of the electric wire. The electric wire stopper clip according to claim 4, wherein the electric wire is wrapped by the bent portion of the electric wire grip portion and the bent portion of the movable electric wire grip portion. The folded portion of the electric wire grip portion and the movable electric wire grip portion widens the distance between the tip portion of the overlined portion and the tip portion of the underlined portion, and at the same time, the tip portion of the overlined portion and the underlined portion. Bent portions bent in the direction of the electric wire are formed from the tip portion, respectively.
In addition, a connecting portion is formed that connects the tips of both of the bent portions in the vertical direction, and the connecting portion is formed in a curved shape along the circumferential direction of the electric wire, whereby the folded portion has a triangular shape as a whole. The electric wire stopper clip according to claim 1, which is formed as a triangular portion. The electric wire grip portion on the left side and the electric wire grip portion on the right side are located at the same level in the horizontal direction with each pair of the upper and lower wire portions positioned in the vertical direction.
The movable electric wire grip portion on the left side and the movable electric wire grip portion on the right side are located at the same level in the horizontal direction with each pair of the upper and lower wire portions positioned in the vertical direction.
6. Wire stop clip. The first needle electrode is fixed to the electric wire receiving portion between the left and right side plates in a conductive state, and the second needle electrode is fixed to the movable electric wire receiving portion between the left and right side plates in a conductive state.
The electric wire stopper clip according to any one of claims 1 to 7, wherein both the first and second needle electrodes break through the coating of the electric wire and come into contact with the conductor in the sandwiched state of the electric wire. In order to apply a rearward urging force to the electric wire, the left and right electric wire grip portions are inclined from each base end portion to the folded portion in the direction of the movable electric wire receiving portion.
Claims 1 to 8 in which the left and right movable electric wire gripping portions are such that each of the folded portions is inclined in the direction of the electric wire receiving portion from each of the base end portions in order to apply an urging force in the front direction to the electric wire. The wire stop clip described in any of. A pair of horizontal mounting plates are provided in the horizontal direction on the outside from the left and right side plates of the metal rectangular frame.
The electric wires arranged along the left and right electric wire grip portions are configured to be mounted on the pair of horizontal mounting plates.
The first needle electrode on the wire receiving portion side is provided with a divergent tapered portion toward the rear side, and the second needle electrode on the movable wire receiving portion side is provided with a divergent tapered portion toward the front side. ,
8. The electric wire mounted on the horizontal mounting plate is scooped up by the tapered portion of the first needle electrode and the tapered portion of the second needle electrode, and the electric wire is centered. Wire stopper clip described in. The electric wire stopper clip according to any one of claims 1 to 10, wherein the metal rectangular frame is fixed to the upper surface of a metal support base fixed on an insulator provided on an arm of a utility pole. The electric wire stopper clip according to claim 11, wherein in the sandwiched state of the electric wire, the metal rectangular frame and the ground are grounded via a power varistor.

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