JP2013041732A - Pull-down cable connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pull-down wire connector which allows easy gripping of a grip part from below by fixing a pull-down wire to the grip part of a pull-down wire connector, enabling attaching of a pull-down wire to a high voltage line with sure, with work time being shortened.SOLUTION: The pull-down wire connector includes a high voltage line pinching part 4 formed of a pair of pinching members 4a and 4a and a fastening bolt 5, for pinching a high-voltage line 3, an insert hole 6 which is formed, parallel to the high-voltage line 3, at the high-voltage line pinching part 4 and in which a core wire 12a of a pull-down wire 12 is inserted, and a plate-like gripping part 7 which is extended below at least one of the pair of pinching members 4a and 4a. At least at one side end face 7a of the gripping part 7 which is formed vertical to the high-voltage line 3, a groove part 9 is formed to house the core wire 12a of the pull-down wire 12 drawn out of the insert hole 6, having been bent. A fixing device 10 attached to the gripping part 7 is provided to cover the core wire 12a of the pull-down wire 12 housed in the groove part 9.

Description

  The present invention relates to an underline connector provided with a holding part and a grip part used when connecting the underline to a high-voltage line, and in particular, it is easy to grip the grip part from below by fixing the underline to the grip part. The present invention relates to an underline connector.

  Conventionally, the connection of the underline to the high-voltage line using the underline connector is performed by attaching the underline to the underline connector in advance, and then holding the underline with a high-voltage line while pushing it up from below with an insulating jacket or the like. The gripping part is gripped to bring the entire underline connector close to the high-voltage line, and the high-voltage line is sandwiched between the clamping parts installed symmetrically with the gripping part. However, since the underline is not fixed to the underline connector, the underline connector is easy to rotate around the underline, and the holding part is heavier than the holding part. Easy to face. For this reason, there existed a subject that it was difficult to grasp a grasping part with an insulating Yatco etc. In addition, there is a problem that a considerable difference occurs in the working time depending on the skill level of the operator, or the underline is bent by repeating the operation many times. Therefore, in order to solve such problems, in recent years, techniques for easily grasping the grasping portion have been developed, and some inventions have already been disclosed in this regard.

Patent Document 1 discloses an invention relating to an underline connector having a hook-shaped high-voltage line holding portion and a underline holding portion provided on an outer surface of a connector main body portion, which is named “underline connector”. It is disclosed.
Hereinafter, the invention disclosed in Patent Document 1 will be described. In the invention disclosed in Patent Document 1, the underline holding part includes a groove part in which the underline can be loaded from the outside, and a bolt which is a downline holding means for holding the underline in the groove part by a screwing member. It is characterized by having.
The underline connector having such a feature has an effect that the underline is held and fixed by loading the underline in the groove and tightening the bolt. Therefore, the underline can be easily and easily held and fixed to the underline connector.

Next, in Patent Document 2, an indirect hot-line operation is provided with a name of “connector for indirect hot-line work”, a connector main body, an extending portion extending from the main body, and a pair of spring members. An invention relating to a connector is disclosed.
The invention disclosed in Patent Document 2 is characterized in that an insertion hole formed such that an end portion such as an insulating jacket can be inserted is provided in the extending portion so as to be positioned between a pair of spring members. .
In the indirect hot wire connection tool having such a feature, an insulating jacket or the like can reliably grip the extending portion.

In Patent Document 3, the underline connector having a high-voltage line connection portion, a connector main body portion having a underline connection portion, and a gripped portion is called a “connector connection auxiliary tool” as a high-voltage line. An invention relating to a connector connection aid used when connecting is disclosed.
The invention disclosed in Patent Document 3 is such that the connector connection assisting device is configured in a plate shape, and has an assisting device main body portion having a widened portion and a groove width in the thickness direction of the assisting device main body portion. And a concave groove portion into which the gripped portion is detachably inserted.
The connector connection assisting tool having such a feature has an effect that the center of gravity of the underline connector moves to the gripped portion side by mounting. Accordingly, the gripped portion can easily be directed downward, and workability can be improved.

JP 2010-118264 A JP 2010-129340 A JP 2011-114935 A

  In the invention disclosed in Patent Document 1, the upper portion of the groove portion for loading the underline is opened. The operation of loading the underline into the groove and fixing it with a bolt is performed after the underline connector is attached to the high voltage line. Therefore, since the loading operation is performed overhead, it may be difficult to visually recognize that the underline has been sufficiently pushed near the bottom surface of the groove. Therefore, it is conceivable that when the bolt tip is tightened without sufficiently coming into contact with the underline, the underline is dropped from the upper side where the groove is opened. For this reason, it may not be said that the underline can be easily and easily held and fixed to the underline connector.

  Next, in the invention disclosed in Patent Document 2, since the extension portion is provided with an insertion hole, the center of gravity of the connection tool for indirect hot-wire work is even more than the case where the insertion hole is not provided. It moves to the sandwiching member side. For this reason, the connector main body is on the lower side and the extending part is on the upper side, so that there is a possibility that it is difficult to be in a state where the distal end portion such as an insulating jacket is engaged with the insertion hole. Therefore, it is difficult to reliably grip the extension portion with an insulating jacket or the like, and the work time may not be shortened.

  Furthermore, in the invention disclosed in Patent Document 3, since the main body portion is easily separated from the gripped portion by pulling the auxiliary device main body portion downward, the auxiliary tool main body portion is unexpectedly broken even during work. May come off. Therefore, the center of gravity of the underline connector moves to the main body portion and the main body portion rotates downward. As a result, the gripped portion becomes upward, making it difficult to grip this portion and improving workability. It may not be said.

  The present invention has been made in view of such a conventional situation, and by fixing the underline to the grasping part of the underline connector, it is easy to grasp the grasping part from below, and as a result reliably pulls it. It is an object of the present invention to provide an underline connector that makes it possible to attach an underline to a high-voltage line and reduce the work time for all workers.

In order to achieve the above-described object, the underline connector according to the first aspect of the present invention includes a holding part formed by a pair of holding pieces and a fastening member so that the high-voltage line can be held, and And a flat plate-shaped gripping portion extending below at least one of the pair of holding pieces, and a high-pressure portion of the gripping portion. At least one side end portion formed perpendicular to the line is formed with a groove portion that accommodates a lead wire drawn from the insertion hole by bending, and the lead wire core accommodated in the groove portion A fixing tool attached to the grip portion is provided so as to cover the cover.
In the underline connector having the above configuration, since the core wire is accommodated in the groove portion, the action of the core wire in contact with the groove portion is suppressed. At the same time, since the upstream underline from the bent position is inserted into the insertion hole, the rotational movement of the underline around the major axis is suppressed. Further, since the fixing member covers the core line of the underline, the movement of the core line is similarly suppressed, and the sliding movement along the longitudinal direction of the underline in the insertion hole is suppressed. In other words, since the positional relationship between the underline and the underline connector does not change, these are formed integrally. Contrary to the above, the underline connector holds the underline by grasping only the underline. It has the effect of suppressing rotation around the center. Moreover, it has the effect | action that the holding part of an underline connector is orient | assigned below by adjusting the rotation direction centering on the long axis of an underline.
Note that the gripping part of the underline connector is “extended” to the clamping piece, but this “extension” is not limited to the case where the gripping part is configured integrally with the clamping piece. It is a concept that includes a case where it is coupled to or connected to. In addition, the core wire of the underline has a rigidity that does not bend even when the entire underline connector is loaded.

Next, the underline connector according to the invention described in claim 2 is characterized in that, in the underline connector according to claim 1, the fixing device fixes or releases the core wire by moving the position with respect to the gripping portion. To do.
In addition to the operation of the invention according to claim 1, the underline connector having the above-described configuration has an operation in which the underline and the underline connector are integrated or separated by the movement of the fixture. Further, “the position of the fixing tool moves relative to the gripping part” means that the fixing tool is movably attached to the gripping part. For example, the fixing tool supports this point with one point as the attachment position. A pivoting movement using an axis and a sliding movement along the gripping part are performed.

Further, the underline connector according to the invention described in claim 3 includes a underline holding tool for fixing the core wire of the underline in place of the groove portion, and the underline holding tool is detachably attached to the holding part. Features.
In the underline connector configured as described above, the underline clamp is attached so as to cover, for example, the side end surface of the grip portion of the underline connector, and the core wire of the underline is inserted between the grip portion and the underline clamp. Fixed. Therefore, the underline clamp tool has the same operation as that of the groove portion and the fixture in the grip portion, that is, the operation of integrating the underline and the underline connector. Moreover, since the underline clamp tool is attached to the grip portion, the effect of the invention of claim 1 is exhibited even if the groove portion and the fixture are not directly provided in the grip portion.

  According to the underline connector of claim 1 of the present invention, the grip portion of the underline connector can be reliably directed downward by adjusting the rotation direction of the underline. Therefore, it is easy to grip the gripping part with an insulating jacket or the like, and the working time can be shortened regardless of the skill level of the operator. For this reason, since there is no repeated redo, it is possible to prevent bending of the underline, and the shape of the underline with respect to the high-voltage line can be maintained in an ideal straight line.

  According to the underline connector according to claim 2 of the present invention, in addition to the effect of the invention according to claim 1, the underline can be easily detached from the underline connector by moving the position of the fixture with respect to the grip portion. it can. Therefore, the work procedure is simplified.

  According to the underline connector described in claim 3 of the present invention, the underline clamp tool does not need to be directly provided with a groove in addition to the effect of the invention described in claim 1. The processing time can be omitted. Moreover, since the underline clamp tool is detachably attached to the grip portion, it is possible to quickly prepare and withdraw according to the start and end of the indirect hot line work.

(A) thru | or (c) is a front view of the underline connector which concerns on Example 1, respectively, the side view from the A direction in Fig.1 (a), and the BB arrow sectional drawing in Fig.1 (a) It is. In FIG. 1C, some drawings are omitted. (A) And (b) is the figure which looked at the underline connector which concerns on Example 1 from the same direction as FIG.1 (b) and FIG.1 (c), respectively. These are the external views of the installation work of an underline. (A) And (b) is a front view of the underline connector which concerns on Example 2, respectively, and the side view from the D direction in Fig.4 (a). (A) And (b) is the EE arrow directional cross-sectional view in Fig.4 (a), respectively, and the GG arrow directional cross-sectional view in FIG.4 (b). In FIGS. 5A and 5B, some drawings are omitted.

The underline connector of Example 1 according to the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3 (mainly corresponding to claims 1 and 2).
1 (a) to 1 (c) are cases where the fixture is perpendicular to the groove, respectively, from a front view of the underline connector according to the first embodiment, from the direction A in FIG. 1 (a). It is a partial enlarged view which concerns on the holding | grip part side end of the BB line arrow cross section in FIG. 2 (a) and 2 (b) are cases in which the fixture is parallel to the groove, and are viewed from the same direction as FIGS. 1 (b) and 1 (c), respectively. It is. Furthermore, FIG. 3 is an external view of the work of attaching the underline to the high-voltage line. 1 are denoted by the same reference numerals in FIGS. 2 and 3, and the description thereof is omitted.

As shown in FIG. 1A, the underline connector 1 according to this embodiment includes groove portions 9 and 9 and a fixture 10 in the connector main body 2. The connector body 2 includes a high-voltage wire holding portion 4 including a pair of holding pieces 4a and 4a that hold the core wire 3a of the high-voltage wire 3 facing each other, and a high-voltage wire holding portion 4 along a direction in which the holding pieces 4a and 4a face each other. Are formed parallel to the high-voltage line 3 and the insertion hole 6 into which the core wire 12a of the draw-down line 12 is inserted, and is symmetrical to the high-voltage line holding part 4 with the insertion hole 6 interposed therebetween. It is comprised from the flat holding part 7 installed in the position, and the spring members 8 and 8 which can open and close a pair of clamping piece 4a, 4a. The gripping portion 7 is extended to one of the pair of sandwiching pieces 4a, 4a, but the relationship between the gripping portion 7 and the sandwiching piece 4a is not only integrally formed but also a separate one. Or you may form so that it may connect firmly.
Next, the groove portions 9 and 9 are provided from the upper end to the lower end of the side end surfaces 7 a and 7 b of the grip portion 7. A flat fixture 10 is attached to one side end surface 7a with a screw 11, and the tip of the screw 11 is screwed into a screw hole (not shown) provided in the side end surface 7a. And the groove part 9 and the fixing tool 10 form a space, and the tip part of the core wire 12a bent at a substantially right angle is accommodated in this space. The connector body 2 is made of a conductive material such as iron, and the fixture 10 is manufactured by processing the core wire 12a.

As shown in FIG. 1 (b), the high-voltage wire clamping portion 4 has a thickness several times that of the grip portion 7. The core wire 12a that has passed through the insertion hole 6 provided in the lower portion of the high-voltage wire sandwiching portion 4 is disposed so that the tip portion is bent toward the screw 11 and then comes into contact with the groove portion 9. The fixture 10 is attached to the side end face 7a so as to be rotatable in the C direction with a screw 11 as a support shaft. In FIG. 1B, the angle formed by the longitudinal direction of the fixture 10 and the side end surface 7 a is substantially a right angle. At this time, the core wire 12 a is not covered with the fixture 10. The display of the spring members 8, 8 is omitted.
Further, as shown in FIG. 1C, the groove portion 9 is obtained by processing the cross section into an arc shape along the side end surface 7 a of the grip portion 7. Since the depth to the bottom of the groove portion 9 is substantially equal to the diameter of the core wire 12a, the core wire 12a is accommodated in the groove portion 9 without protruding.

2A, the fixture 10 in FIG. 1B is rotated to a position where the longitudinal direction and the side end face 7a are parallel to each other. At this time, the core wire 12a is covered with the fixture 10 from the tip side.
Further, as shown in FIG. 2B, both outermost ends of the side end surface 7 a and the core wire 12 a are both in contact with the fixture 10. By tightening the screw 11 in this state, the core wire 12a is sandwiched between the groove 9 and the fixture 10.

A procedure for using the underline connector 1 having the above structure will be described. Before connecting the underline connector 1 to the high-voltage line 3 in advance, the core wire 12a of the underline 12 is inserted and passed through the insertion hole 6, and then the vicinity of the tip is bent and along the groove 9 is received. At this time, the fixture 10 is set to a position (see FIG. 1B) that does not cover the core wire 12a. Thereafter, the fixture 10 is rotated about the screw 11 as a support shaft, and is set to a position where the core wire 12a is covered (see FIG. 2A). As a result, the core wire 12a is sandwiched between the groove 9 and the fixture 10. Thereafter, the screw 11 is fastened to firmly hold the core wire 12a.
Then, as shown in FIG. 3, the underline 12 is wound around the high voltage line 3 at a certain length from the tip, and the wound part is held together with the high voltage line 3 by the tongue 13. In addition, in order to bring the high-voltage wire clamping portion 4 of the underline connector 1 closer to the high-voltage wire 3 later, the direction of the holding portion 7 must be able to be held by the tip of an insulating jacket (not shown). Therefore, it is necessary to adjust the rotation direction around the axis of the underline 12 so that the grip portion 7 is easily gripped and hold it with the tongue 13. Next, the core wire 3a is pushed in between the sandwiching pieces 4a and 4a to tighten the tightening bolt 5 to complete the connection of the underline 12. When removing the underline connector 1 from the high voltage line 3, the reverse procedure is performed.

According to the underline connector 1 of the present embodiment, the high-voltage wire holding part 4 is considerably thicker than the grip part 7, and these are made of the same material. For this reason, the center of gravity exists on the high-voltage line holding part 4 side, and the bending line connector 1 rotates around the drawing line 12 only by bending the core wire 12a that has passed through the insertion hole 6, and the high-voltage line holding part 4 Turns downward.
However, in the underline connector 1, in addition to being bent, the end of the core wire 12 a is disposed so as to contact the groove portion 9 and is held by being pressed by the fixture 10 and the screw 11. It is fixed to the connector 1. Therefore, since the underline 12 and the underline connector 1 are integrated, by holding only the underline 12, it is prevented that the underline connector 1 performs a rotational motion due to the position of the center of gravity. It has the action. Therefore, by adjusting the rotation direction around the axis of the underline 12, the grip portion 7 of the underline connector 1 has an effect of being directed downward.
Furthermore, when the fixture 10 reciprocates and rotates, the distal end portion of the core wire 12a is fixed or released from the underline connector 1.

As described above, according to the underline connector 1 of the present embodiment, since the groove portion 9 is provided on the side end surfaces 7a and 7b of the gripping portion 7, the underline 12 can be connected from either side of both end surfaces. This has the effect that the running direction of the underline 12 is not restricted. Further, since the tip end portion of the core wire 12a is fixed by the fixture 10 and the screw 11, the underline 12 can be easily and reliably connected to the underline connector 1.
As a result, by adjusting the rotation direction around the axis of the underline 12, the grip portion 7 of the underline connector 1 can be easily directed downward. Therefore, it is possible to quickly grip the gripping portion 7 with an insulating jacket or the like. For this reason, working time can be shortened, and this shortening effect becomes remarkable especially in unskilled workers. Therefore, it becomes easy to plan a plurality of work schedules, and it is possible to plan accurately in time. In addition, since the fixture 10 is manufactured from the core wire 12a, it is not necessary to purchase a new member and there is almost no economic burden.

In addition, since the gripping portion 7 can be quickly gripped, the procedure for winding the underline 12 around the high-voltage line 3 can be performed only once, so that the shape of the downline 12 downstream from the winding position is an ideal linear shape. Can be maintained. Therefore, the length of the underline 12 connected to the underline connector 1 from the winding position does not cause an error from the predicted length due to distortion, and should match the length of the high voltage line 3 from the through winding position to the core wire 3a. Can do. Therefore, the high-voltage wire holding part 4 of the underline connector 1 can quickly hold the targeted core wire 3 a without readjusting the winding position of the underline 12.
Furthermore, since the underline 12 can be easily detached from the underline connector 1 by rotating the fixing tool 10 and tightening the screw 11, the work procedure is simplified.

  In addition, the structure of the underline connector 1 of this invention is not limited to what is shown in a present Example. For example, the fixing tool 10 and the screw 11 may be provided on both side end faces 7a and 7b, or may be provided on the high-voltage wire holding part 4 or other gripping part 7. Further, the fixture 10 may be slid along the side end surfaces 7a and 7b, instead of rotating around the screw 11 as a support shaft. Further, the groove portion 9 may have a box shape or the like instead of an arc shape in cross section, and the core wire 12a accommodated in the groove portion 9 may extend not only to the tip portion but also to the periphery of the tip portion. In addition, the holding part 7 may not have the same width as the high-voltage wire holding part 4 and the angle formed by the insertion hole 6 and the side end faces 7a and 7b may be larger than 90 degrees.

The underline connector of Example 2 according to the embodiment of the present invention will be described in detail with reference to FIGS. 4 and 5 (mainly corresponding to claim 3).
4A and 4B are a front view of the underline connector 1a according to the second embodiment and a side view from the direction D in FIG. 4A, respectively. 5A and 5B are a cross-sectional view taken along line EE in FIG. 4A and a cross-sectional view taken along line GG in FIG. 4B, respectively. In addition, about the component shown in FIG. 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

As shown in FIG. 4A, the underline connector 1a of the present embodiment is one in which the groove portions 9 and 9 are not provided in the grip portion 7 in the underline connector 1 according to the first embodiment. The underline connector 1a includes a underline clamp 14 that is detachably attached to both of the side end surfaces 7c and 7d. The underline gripping tool 14 has a groove 9a (see FIG. 5 (a)) having a circular cross section in cross section, and both ends of the arcuate portion are folded so that both planes of the gripping part 7 are clamped in the vicinity of the side end faces 7c and 7d. A pair of levers 14b, 14b projecting from the clamping plates 14a, 14a opposite to each other so as to open and close the clamping plates 14a, 14a, and a fixture 10a attached to the groove 9a And a screw 11a penetrating the groove 9a and the fixture 10a. The core wire 12a is inserted between the groove 9a and the screw 11a (see FIGS. 5A and 5B). The groove 9a needs to be made of an elastic material such as a metal or a synthetic resin, and a restoring force is always applied to keep the planar shape.
As shown in FIG. 4 (b), the fixture 10a covers the groove 9a and the core wire 12a, and is fixed by a screw 11a. The fixture 10a is a flat plate having a substantially rectangular guide hole 15 therein, and a threaded portion of the screw 11a passes through the guide hole 15. Therefore, the fixture 10a has a structure that slides in the direction F in the figure using the screw 11a as a fulcrum.

  As shown to Fig.5 (a), the depth to the bottom face of the groove part 9a is substantially equivalent to the diameter of the core wire 12a. Therefore, both ends of the arc-shaped portion in the groove 9a and the core wire 12a are simultaneously in contact with the fixture 10a. Further, by bringing the protruding sides of the levers 14b and 14b closer to each other, the elastic groove 9a is further curved. As a result, the sandwiching plates 14a and 14a to which the base portions of the levers 14b and 14b are attached are separated from each other to release the grip portion 7. Further, as shown in FIG. 5 (b), the screw 11a can be tightened until the tip of the screwed portion comes into contact with the side end surface 7c.

  In the underline connector 1a having such a structure, the holding plates 14a and 14a of the underline holding tool 14 hold the grip portion 7 by bringing the protruding sides of the levers 14b and 14b closer to a desired distance. Has the effect of releasing. In addition, by tightening the screw 11a, the fixing tool 10a is immovably pressed, the core wire 12a is pressed against the groove 9a, and conversely, the screw 11a is loosened to allow the fixing tool 10a to slide, and the core wire 12a is moved into the groove 9a. It has the effect of releasing from.

  According to the underline connector 1a of the present embodiment, the fixing tool 10a can be moved or disabled by tightening and loosening the screw 11a, and the core wire 12a can be fixed or released, so that the operation is simple. Further, since the underline clamping tool 14 is detachable from the gripping part 7, it is attached to the underline connector 1a only when necessary for the work, and can be quickly removed at the end of the work, which is convenient. Moreover, since lever 14b, 14b can be adjusted to desired space | interval, it can be attached to the holding part 7 of the thickness suitable in the range, and has versatility. Moreover, it is not necessary to perform the process of forming the groove portion 9 in the gripping portion 7, and it is possible to reduce the labor and cost of manufacturing as compared with the underline connector 1 according to the first embodiment. In addition, it has the same effect as the underline connector 1.

  The underline connector 1a of the present invention is not limited to the structure shown in the present embodiment. For example, the fixing tool 10a may be structured to be fixed with a hinge instead of being fixed by the screw 11a.

  The invention described in claims 1 to 3 can be used as a underline connector used when connecting an underline to a high voltage line.

  DESCRIPTION OF SYMBOLS 1, 1a ... Underline connector 2 ... Connector main body 3 ... High-voltage wire 3a ... Core wire 4 ... High-voltage wire clamping part 4a ... Clamping piece 5 ... Clamping bolt 6 ... Insertion hole 7 ... Grip part 7a-7d ... Side end face 8 ... Spring Member 9, 9a ... Groove 10, 10a ... Fixing tool 11, 11a ... Screw 12 ... Underline 12a ... Core wire 13 ... Tongue 14 ... Underline clamp 14a ... Holding plate 14b ... Lever 15 ... Guide hole

Claims (3)

A clamping part formed by a pair of clamping pieces and a clamping member so that the high-voltage line can be clamped;
An insertion hole that is formed in parallel to the high-voltage line and into which the core wire of the underline is inserted,
A flat plate-like gripping portion extending below at least one of the pair of sandwiching pieces,
At least one side end portion of the grip portion, which is formed perpendicular to the high-voltage line,
A groove portion is formed to bend and accommodate the core wire of the underline led out from the insertion hole,
An underline connector comprising: a fixture attached to the grip portion so as to cover the core wire of the underline housed in the groove portion.   2. The underline connector according to claim 1, wherein the fixing device fixes or releases the core wire by moving a position relative to the grip portion. 3. In place of the groove portion, a drawing line holding tool for fixing the core line of the drawing line is provided,
The underline connector according to claim 1, wherein the underline clamp tool is detachably attached to the grip portion.

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