JP2018074644A - Pulling eye - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pulling eye capable of improving workability and stably holding terminal parts of wires in a cylinder part.SOLUTION: A pulling eye 1 comprises: a cylinder part 5 in which terminal parts of multiple wires 3 are accommodated; a fixing part 7 which is integrally provided in one end of the cylinder part 5; an opening 9 which is provided in the other end of the cylinder part 5 in such a manner that the terminal parts of the multiple wires 3 can be inserted; and a thermosetting resin 11 which is filled inside the cylinder part 5 and prevents the terminal parts of the multiple wires 3 from being dropped out of the cylinder part 5. In the pulling eye, outer diameters of the cylinder part 5 between the fixing part 7 and the opening 9 are formed in the equal diameter and an anti-fallout part 13 which is engaged with the thermosetting resin 11 in a length direction of the cylinder part 5 is provided inside. The anti-fallout part 13 is disposed continuously in a circumferential direction in such a manner that a cross-sectional area of the cylinder part 5 is reduced.SELECTED DRAWING: Figure 1

Description

  The present invention relates to pooling. Specifically, the present invention relates to a pooling eye that has a cylindrical portion that accommodates terminal portions of a plurality of electric wires, and is provided with a fixing portion on which a hook or the like of a traction device is fixed.

  Conventionally, as a pooling eye, a cylindrical portion in which terminal portions of a plurality of electric wires are accommodated, a fixing portion integrally provided at one end of the cylindrical portion, and a terminal portion of the plurality of electric wires are inserted into the other end of the cylindrical portion. What is provided with the opening part provided in the inside and the thermosetting resin with which the inside of a cylinder part is filled, and prevents the terminal part of a some electric wire from detaching from the said cylinder part is known (for example, patent documents) 1).

  In this pooling eye, for example, a cylindrical portion is inserted into a through-hole formed in a wall portion of a building or the like, and a hook of a traction device installed in the building or the like is attached to a fixed portion integrally provided at one end of the cylindrical portion. By locking, a plurality of electric wires can be collectively inserted into the through hole.

  In such a pooling eye, in order to prevent the thermosetting resin filled in the cylindrical portion from being detached, an inclined portion having a smaller diameter than the outer diameter of the cylindrical portion is provided on the opening side of the cylindrical portion, Protrusions that bite into the thermosetting resin are provided.

Japanese Patent Laid-Open No. 7-245851

  However, in the pooling eye as in Patent Document 1, the outer diameter of the cylindrical portion is formed larger than the opening side, so that the through hole of the mating member through which the cylindrical portion is inserted is also large in accordance with the cylindrical portion. It was necessary to make the diameter.

  If the through hole of the counterpart member has a large diameter in this way, the amount of the backfilling member that is buried in the throughhole by fireproofing treatment increases, and the backfilling operation becomes complicated and the workability decreases. It was.

  On the other hand, in the pooling eye as in Patent Document 1, if the outer diameter of the cylindrical portion is made the same without providing the inclined portion, the protrusion provided inside the cylindrical portion does not prevent the thermosetting resin from coming off. This is sufficient, and there is a fear that the end portion of the electric wire cannot be stably held in the tube portion.

  Then, this invention aims at provision of the pooling eye which can improve workability and can hold | maintain the terminal part of an electric wire stably to a cylinder part.

  The invention according to claim 1 is a cylindrical portion in which terminal portions of a plurality of electric wires are accommodated, a fixing portion integrally provided at one end of the cylindrical portion, and terminals of the plurality of electric wires at the other end of the cylindrical portion. A pooling eye comprising: an opening provided so that a part can be inserted; and a thermosetting resin filled in the cylindrical part to prevent the terminal parts of the plurality of electric wires from coming off from the cylindrical part, The cylindrical portion is formed with the same outer diameter between the fixed portion and the opening, and is provided with a retaining portion that engages the thermosetting resin in the length direction of the cylindrical portion, The retaining portions are arranged continuously in the circumferential direction so as to reduce the cross-sectional area of the cylindrical portion.

  In this pooling eye, since the outer diameter between the fixed portion and the opening portion is formed to the same diameter, the diameter of the through hole of the mating member can be minimized, and the backfill member Therefore, the backfilling operation can be easily performed, and the workability can be improved.

  Further, since the retaining portion is continuously arranged in the circumferential direction so as to reduce the cross-sectional area of the cylindrical portion, the engagement area between the thermosetting resin and the retaining portion can be increased, and the thermosetting resin The stopper can be stabilized and the end portion of the electric wire can be stably held in the cylindrical portion.

  Therefore, with such a pooling eye, workability can be improved, and the terminal portion of the electric wire can be stably held in the tube portion.

  Invention of Claim 2 is the pooling eye of Claim 1, Comprising: The said securing part is the obstruction | occlusion wall part integrally provided so that the said opening part might be obstruct | occluded in the said opening part side of the said cylinder part And a closing hole portion that is provided through the blocking wall portion and into which the terminal portion of the electric wire can be inserted and is formed with an inner diameter smaller than the inner diameter of the opening portion.

  In this pooling eye, the retaining portion is integrally provided on the opening portion side of the tubular portion so as to close the opening portion, and the end portion of the electric wire is inserted through the closing wall portion. And has a closed hole formed with an inner diameter smaller than the inner diameter of the opening, so that by engaging the thermosetting resin with a large area of the closed wall other than the closed hole, It can be held stably.

  The invention according to claim 3 is the pooling eye according to claim 1 or 2, wherein the retaining portion is integrated with the fixing portion side of the tubular portion so as to partition the inside of the tubular portion in the length direction. And a partition hole formed through the partition wall and having an inner diameter smaller than the inner diameter of the opening.

  In this pooling eye, the retaining portion is provided integrally on the fixed portion side of the tubular portion so as to partition the inside of the tubular portion in the length direction, and through the partitioned wall portion. Since the partition wall portion is formed with an inner diameter smaller than the inner diameter of the opening portion, the partition wall portion and the terminal portion of the electric wire do not interfere with each other in the cylinder portion, and the partition hole portion is made to be minimized to the partition wall. The area of the portion can be increased to the maximum, and the thermosetting resin can be more stably held in the cylindrical portion.

  Invention of Claim 4 is a pooling eye of any one of Claim 1 thru | or 3, Comprising: The said securing part is a shaft part provided integrally with the said fixing | fixed part side of the said cylinder part, And a disc portion provided integrally with the end portion of the shaft portion and having an outer diameter smaller than the inner diameter of the opening.

  In this pooling eye, the retaining portion is a shaft portion that is integrally provided with the fixed portion side of the cylindrical portion, and a disk that is integrally provided at the end portion of the shaft portion and has an outer diameter smaller than the inner diameter of the opening portion. Therefore, by arranging the disk part at a position where it does not interfere with the terminal part of the electric wire, the outer diameter of the disk part is maximized so that there is a gap between the disk part and the inner periphery of the cylinder part. By doing so, the engagement area between the thermosetting resin and the disk portion can be maximized, and the thermosetting resin can be more stably held in the cylindrical portion.

  Invention of Claim 5 is a pooling eye of any one of Claim 1 thru | or 4, Comprising: The said securing part is an inner peripheral surface of the said cylinder part along the length direction of the said cylinder part. It has the some convex part provided integrally.

  In this pooling eye, since the retaining portion has a plurality of convex portions integrally provided on the inner peripheral surface of the tubular portion along the length direction of the tubular portion, the thermosetting resin in the longitudinal direction of the tubular portion and The total engagement area with the plurality of convex portions can be increased, and the thermosetting resin can be more stably held in the cylindrical portion.

  A sixth aspect of the present invention is the pooling eye according to any one of the first to fifth aspects, wherein the retaining portion is formed separately from the cylindrical portion and is fixed to the cylindrical portion. It is characterized by that.

  In this pooling eye, the retaining portion is formed separately from the tubular portion and is fixed to the tubular portion. Therefore, the retaining portion can be easily removed from the tubular portion, and easily retained in accordance with the interior of the tubular portion. The shape and diameter of the part can be changed.

  According to the present invention, workability can be improved, and an effect is provided that a pooling eye that can stably hold a terminal portion of an electric wire in a cylindrical portion can be provided.

It is sectional drawing of the pooling eye which concerns on 1st Embodiment of this invention. It is a perspective view of the cylinder part of the pooling eye which concerns on 1st Embodiment of this invention. It is a front view of the terminal part of the electric wire of the pooling eye concerning a 1st embodiment of the present invention. (A) is a perspective view when the retaining part of the pooling eye which concerns on 1st Embodiment of this invention is seen from the upper side. (B) is a perspective view when Fig.4 (a) is seen from lower side. It is sectional drawing of the pooling eye which concerns on 2nd Embodiment of this invention. It is sectional drawing of the pooling eye which concerns on 3rd Embodiment of this invention. It is a perspective view of the cylinder part of the pooling eye which concerns on 3rd Embodiment of this invention. (A) is a perspective view when the retaining part of the pooling eye which concerns on 3rd Embodiment of this invention is seen from the upper side. (B) is a perspective view when Fig.8 (a) is seen from lower side. (C) is sectional drawing of Fig.8 (a). It is sectional drawing of the pooling eye which concerns on 4th Embodiment of this invention. It is sectional drawing of the cylinder part of the pooling eye which concerns on 4th Embodiment of this invention. (A) is a perspective view when the retaining part of the pooling eye which concerns on 4th Embodiment of this invention is seen from the upper side. (B) is a perspective view when Fig.11 (a) is seen from lower side.

  A pooling eye according to an embodiment of the present invention will be described with reference to FIGS.

(First embodiment)
The first embodiment will be described with reference to FIGS.

  The pooling eye 1 according to the present embodiment includes a cylindrical portion 5 in which terminal portions of a plurality of electric wires 3 are accommodated, a fixing portion 7 provided integrally with one end of the cylindrical portion 5, and the other end of the cylindrical portion 5. An opening 9 provided so that the terminal portions of the plurality of electric wires 3 can be inserted, and a thermosetting resin 11 that is filled in the cylindrical portion 5 and prevents the terminal portions of the plurality of electric wires 3 from being removed from the cylindrical portion 5; It has.

  Further, the cylindrical portion 5 is formed with the same outer diameter between the fixed portion 7 and the opening 9, and a retaining portion 13 that engages with the thermosetting resin 11 in the length direction of the cylindrical portion 5 is provided inside. It has been.

  And the retaining part 13 is arrange | positioned continuously in the circumferential direction so that the cross-sectional area of the cylinder part 5 may be made small.

  In addition, the retaining portion 13 is integrally provided on the opening portion 9 side of the tubular portion 5 so as to close the opening portion 9, and the blocking wall portion 15 is provided through the closing wall portion 15. And a closing hole portion 17 having an inner diameter smaller than the inner diameter of the opening 9 through which the terminal portion can be inserted.

  Further, the retaining portion 13 is formed separately from the cylindrical portion 5 and is fixed to the cylindrical portion 5.

  As shown in FIGS. 1 to 4, a plurality (three in this case) of the electric wires 3 have the end portion of the insulating coating peeled off, and a sleeve 19 is assembled to the exposed core wire.

  A tube 21 made of an insulating material that prevents direct contact with the inside of the cylindrical portion 5 is assembled around the sleeve 19.

  The terminal portions of the plurality of electric wires 3 subjected to terminal processing in this way are accommodated in the cylindrical portion 5.

  The cylindrical part 5 is formed in a cylindrical shape with a bottom, and is integrally provided as one member with a fixed part 7 continuous at one end on the bottom side, and is opened at the other end so that the terminal parts of the plurality of electric wires 3 can be inserted. Opening 9 is provided.

  This cylinder part 5 is set so that the outer diameter between the length directions of the fixing part 7 and the opening part 9 becomes the same diameter.

  The inside of the cylindrical part 5 is filled with the thermosetting resin 11 in a state where the terminal parts of the plurality of electric wires 3 are accommodated.

  The thermosetting resin 11 is made of an epoxy resin or the like, and is injected and filled into the cylindrical portion 5 in a state where the terminal portions of the plurality of electric wires 3 are accommodated in the cylindrical portion 5.

  The thermosetting resin 11 filled in the cylindrical portion 5 enters and cures between the sleeve 19 and the insulation coating at the terminal portions of the plurality of electric wires 3, so that the cylindrical portions of the terminal portions of the plurality of electric wires 3 are cured. Prevent from coming off from 5.

  Thus, the cylindrical part 5 in which the terminal portions of the plurality of electric wires 3 are prevented from being removed by the thermosetting resin 11 is inserted into a through hole formed in a wall part of a building or the like and installed in a building or the like, for example. The hook of the traction device is locked to the fixing portion 7.

  By pulling the cylindrical part 5 from this state by the pulling device, the plurality of electric wires 3 can be collectively inserted through the through holes in the wall part.

  Thus, the outer diameter of the cylinder part 5 is minimized by making the outer diameter of the cylinder part 5 inserted into the through hole of the wall part the same diameter between the fixed part 7 side and the opening part 9 side. Thereby, the through-hole of a wall part can be suppressed to the minimum.

  For this reason, not only the work of providing the through hole in the wall portion is facilitated, but also the amount of backfilling member buried in the through hole by fireproofing treatment can be reduced, and the backfilling work can be easily performed. Can be improved.

  Thus, in the cylinder part 5 formed with the same outer diameter, there is a possibility that the thermosetting resin 11 filled inside may escape from the opening 9 of the cylinder part 5.

  Therefore, a retaining portion 13 that is engaged with the thermosetting resin 11 in the length direction of the tubular portion 5 is provided inside the tubular portion 5.

  The retaining portion 13 is formed in a cylindrical shape separately from the cylindrical portion 5, one end is opened, and a closing wall portion 15 is provided at the other end so as to close the opening 9 of the cylindrical portion 5.

  In the central portion of the blocking wall portion 15, a blocking hole portion 17 formed so as to have a smaller diameter than the opening portion 9 of the cylindrical portion 5 is provided through the blocking wall portion 15 so that the terminal portions of the plurality of electric wires 3 can be inserted. ing.

  Between the outer periphery of the retaining portion 13 and the inner periphery of the cylindrical portion 5 on the opening 9 side, an engaging portion 23 composed of a screw thread and a thread groove is provided, and the retaining portion 13 is engaged with the engaging portion 23. It is fixed integrally with the cylinder part 5 via.

  Such a retaining portion 13 is fixed to the cylindrical portion 5 via the engaging portion 23, whereby the blocking wall portion 15 is disposed on the opening 9 side of the cylindrical portion 5.

  Since the blocking wall portion 15 disposed on the opening 9 side is provided with a blocking hole portion 17 having a smaller diameter than the opening portion 9 at the center, the blocking wall portion 15 is continuously provided in the circumferential direction. It is in a state of being formed in an annular shape.

  For this reason, in the state where the annular blocking wall portion 15 is disposed on the opening 9 side, the sectional area of the cylindrical portion 5 is reduced by the annular blocking wall portion 15 in the sectional area when the cylindrical portion 5 is cut in the radial direction. Get smaller.

  Thus, by making the cross-sectional area of the cylinder part 5 small by the blocking wall part 15, the thermosetting resin 11 filled in the cylinder part 5 and the blocking wall part 15 are engaged in the length direction of the cylinder part 5. The engagement area can be increased, and the thermosetting resin 11 can be stably held in the cylindrical portion 5.

  In such a retaining portion 13, the terminal portions of the plurality of electric wires 3 before being subjected to terminal processing are inserted into the blocking hole portion 17, and the terminal portions of the plurality of electric wires 3 inserted through the blocking hole portion 17 are subjected to terminal processing. The

  After inserting the blocking hole portion 17 in this way, the terminal portions of the plurality of electric wires 3 are subjected to terminal processing, whereby the terminal portions of the plurality of electric wires 3 whose diameters are increased by the terminal processing in the blocking hole portion 17 are inserted. This is unnecessary, and the inner diameter of the blocking hole portion 17 can be minimized.

  The assembly of the pooling eye 1 configured in this way is performed by first inserting the terminal portions of the plurality of electric wires 3 before terminal processing into the blocking hole portion 17 of the retaining portion 13 and connecting the terminal portions of the plurality of electric wires 3 to the terminals. To process.

  Next, the retaining portion 13 is fixed to the cylindrical portion 5 via the engaging portion 23 so that the terminal portions of the plurality of electric wires 3 are accommodated in the cylindrical portion 5.

  And the thermosetting resin 11 is inject | poured into the cylinder part 5, the thermosetting resin 11 is filled in the cylinder part 5, the thermosetting resin 11 is hardened, and the removal from the cylinder part 5 of the terminal part of the some electric wire 3 is prevented. I do.

  At this time, since the cured thermosetting resin 11 is engaged with the closing wall portion 15 of the retaining portion 13 in the length direction of the cylindrical portion 5, the thermosetting resin 11 does not escape from the cylindrical portion 5, The terminal portion of the electric wire 3 can be stably held in the cylindrical portion 5.

  Although the retaining portion 13 is formed separately from the cylindrical portion 5, the blocking wall portion 15 may be formed as a single member continuous with the cylindrical portion 5 on the opening 9 side of the cylindrical portion 5.

  In such a pooling eye 1, since the outer diameter between the fixed part 7 and the opening part 9 is formed in the same diameter, the cylindrical part 5 minimizes the diameter of the through hole of the mating member. Therefore, the amount of the backfilling member can be reduced, the backfilling operation can be easily performed, and the workability can be improved.

  Further, since the retaining portion 13 is continuously arranged in the circumferential direction so as to reduce the cross-sectional area of the cylindrical portion 5, the engagement area between the thermosetting resin 11 and the retaining portion 13 can be increased, The stopper of the thermosetting resin 11 can be stabilized, and the terminal portion of the electric wire 3 can be stably held in the cylindrical portion 5.

  Therefore, with such a pooling eye 1, workability can be improved, and the terminal portion of the electric wire 3 can be stably held on the cylindrical portion 5.

  In addition, the retaining portion 13 is integrally provided on the opening portion 9 side of the tubular portion 5 so as to close the opening portion 9, and the blocking wall portion 15 is provided through the closing wall portion 15. Since the terminal portion can be inserted and the closing hole portion 17 is formed with an inner diameter smaller than the inner diameter of the opening portion 9, the thermosetting resin 11 can be engaged with a large area of the closing wall portion 15 other than the closing hole portion 17. Thus, the thermosetting resin 11 can be stably held in the cylindrical portion 5.

  Further, since the retaining portion 13 is formed separately from the cylindrical portion 5 and is fixed to the cylindrical portion 5, the retaining portion 13 can be easily detached from the cylindrical portion 5, and is fitted to the inside of the cylindrical portion 5. The shape and diameter of the retaining portion 13 can be easily changed.

(Second Embodiment)
The second embodiment will be described with reference to FIG.

  In the pooling eye 101 according to the present embodiment, the retaining portion 103 has a plurality of convex portions 105 that are integrally provided on the inner peripheral surface of the cylindrical portion 5 along the length direction of the cylindrical portion 5.

  The same components as those of the first embodiment are denoted by the same reference numerals, and the description of the configuration and functions will be omitted with reference to the first embodiment. However, the configuration is the same as that of the first embodiment. The effect achieved is the same.

  As shown in FIG. 5, the retaining portion 103 is a member that is continuous with the cylindrical portion 5 so as to protrude from the inner peripheral surface of the cylindrical portion 5 toward the inside of the cylindrical portion 5, and is formed continuously in the circumferential direction. An annular convex portion 105 is provided.

  The annular convex portion 105 protrudes from the inner peripheral surface of the cylindrical portion 5 toward the inside of the cylindrical portion 5 in the sectional area when the cylindrical portion 5 is cut in the radial direction. To make it smaller.

  In this way, a plurality of convex portions 105 that reduce the cross-sectional area of the cylindrical portion 5 are arranged along the length direction of the cylindrical portion 5, and engage with each other in the length direction of the thermosetting resin 11 and the cylindrical portion 5. The total engagement area which is the sum of the engagement area with the convex portion 105 can be increased.

  Thus, by arranging a plurality of convex portions 105 that engage with the thermosetting resin 11 in the length direction of the cylindrical portion 5, the engagement area with the thermosetting resin 11 can be increased. The terminal portion of the electric wire 3 can be stably held in the cylindrical portion 5 by being stably held in the cylindrical portion 5.

  The plurality of convex portions 105 may be spirally provided on the inner periphery of the cylindrical portion 5 like a screw groove, or the convex portions 105 may be provided separately from the cylindrical portion 5 and fixed to the cylindrical portion 5.

  In such a pooling eye 101, the retaining portion 103 has a plurality of convex portions 105 provided integrally on the inner peripheral surface of the cylindrical portion 5 along the length direction of the cylindrical portion 5. The total engagement area between the thermosetting resin 11 and the plurality of convex portions 105 in the length direction can be increased, and the thermosetting resin 11 can be more stably held in the cylindrical portion 5.

(Third embodiment)
A third embodiment will be described with reference to FIGS.

  The pooling eye 201 according to the present embodiment includes a partition wall portion 205 integrally provided so that the retaining portion 203 partitions the inside of the tubular portion 5 in the length direction on the fixed portion 7 side of the tubular portion 5. And a partition hole portion 207 provided through the partition wall portion 205 and having an inner diameter smaller than the inner diameter of the opening 9.

  The retaining portion 203 is formed separately from the cylindrical portion 5 and is fixed to the cylindrical portion 5.

  The same components as those of the first embodiment are denoted by the same reference numerals, and the description of the configuration and functions will be omitted with reference to the first embodiment. However, the configuration is the same as that of the first embodiment. The effect achieved is the same.

  As shown in FIGS. 6 to 8, the retaining portion 203 is formed separately from the cylindrical portion 5 in a bottomed cylindrical shape, one end is closed, and the other end is partitioned in the longitudinal direction at the other end. Thus, a partition wall 205 is provided.

  A partition hole portion 207 having a diameter smaller than that of the opening 9 of the cylindrical portion 5 is provided through the partition wall portion 205 at the center of the partition wall portion 205.

  A plurality of screw grooves (here, 4) configured with a plurality of screws 207 to which a plurality of screws 207 can be fastened are provided between an end surface of the retaining portion 203 opposite to the partition wall portion 205 and an inner surface of the cylindrical portion 5 on the fixing portion 7 side. The engagement portion 209 is provided, and the retaining portion 203 is fixed integrally with the cylindrical portion 5 via the engagement portion 209 by fastening the screws 207 to the plurality of engagement portions 209, respectively.

  Such a retaining portion 203 is fixed to the cylindrical portion 5 via the engaging portion 209, so that the partition wall portion 205 is disposed on the fixing portion 7 side of the cylindrical portion 5.

  The partition wall portion 205 arranged on the fixed portion 7 side is provided with a partition hole portion 207 having a diameter smaller than that of the opening 9 at the center portion. Therefore, the partition wall portion 205 is continuously provided in the circumferential direction. It is in a state of being formed in an annular shape.

  For this reason, in the state where the annular partition wall portion 205 is disposed on the fixed portion 7 side, the sectional area when the tubular portion 5 is cut in the radial direction, the sectional area of the tubular portion 5 is reduced by the annular partition wall portion 205. Get smaller.

  Thus, by making the cross-sectional area of the cylinder part 5 small by the partition wall part 205, the thermosetting resin 11 filled in the cylinder part 5 and the partition wall part 205 are engaged in the length direction of the cylinder part 5. The engagement area can be increased, and the thermosetting resin 11 can be stably held in the cylindrical portion 5.

  In addition, since the partition wall portion 205 is disposed on the fixed portion 7 side of the tube portion 5, it does not interfere with the terminal portions of the plurality of electric wires 3 housed in the tube portion 5.

  For this reason, the internal diameter of the division hole part 207 provided in the division wall part 205 can be suppressed to the minimum, and the engagement area with the thermosetting resin 11 of the division wall part 205 can be increased to the maximum.

  Although the retaining portion 203 is formed separately from the cylindrical portion 5, the partition wall portion 205 may be formed as a single member continuous with the cylindrical portion 5 on the fixed portion 7 side of the cylindrical portion 5.

  In such a pooling eye 201, the retaining portion 203 is provided integrally with a partition wall portion 205 provided on the fixed portion 7 side of the tube portion 5 so as to partition the inside of the tube portion 5 in the length direction, and the partition wall portion 205. Since it has the partition hole part 207 provided through the wall part 205 and having an inner diameter smaller than the inner diameter of the opening 9, the partition wall part 205 interferes with the terminal part of the electric wire 3 in the cylinder part 5. Accordingly, the area of the partition wall 205 can be increased to the maximum by reducing the partition hole 207 to the minimum, and the thermosetting resin 11 can be more stably held in the cylindrical portion 5.

  Further, since the retaining portion 203 is formed separately from the cylindrical portion 5 and is fixed to the cylindrical portion 5, the retaining portion 203 can be easily detached from the cylindrical portion 5, and is fitted to the inside of the cylindrical portion 5. The shape and diameter of the retaining portion 203 can be easily changed.

(Fourth embodiment)
A fourth embodiment will be described with reference to FIGS.

  In the pooling eye 301 according to the present embodiment, the retaining portion 303 includes a shaft portion 305 provided integrally with the fixed portion 7 side of the tube portion 5, and an opening provided integrally with an end portion of the shaft portion 305. 9 and a disk portion 307 formed with an outer diameter smaller than the inner diameter.

  The retaining portion 303 is formed separately from the cylindrical portion 5 and is fixed to the cylindrical portion 5.

  The same components as those of the first embodiment are denoted by the same reference numerals, and the description of the configuration and functions will be omitted with reference to the first embodiment. However, the configuration is the same as that of the first embodiment. The effect achieved is the same.

  As shown in FIGS. 9 to 11, the retaining portion 303 is formed separately from the cylindrical portion 5, and extends to the fixed portion 7 side of the cylindrical portion 5, and an end portion of the axial portion 305. And a disk portion 307 formed of one continuous member.

  On the outer periphery of the end portion of the shaft portion 305 of the retaining portion 303 on the fixing portion 7 side, a thread is formed, and an engaging portion 309 is configured with a screw groove provided on the fixing portion 7 side of the cylindrical portion 5, The retaining portion 303 is fixed integrally with the cylindrical portion 5 via the engaging portion 309.

  The disc portion 307 of the retaining portion 303 is formed in a circular shape with one member continuous to the shaft portion 305 at the end opposite to the engaging portion 309 of the shaft portion 305, and the outer diameter is smaller than the inner diameter of the opening portion 9. Is formed.

  The disk portion 307 is provided with a jig engaging portion 311 with which a jig such as a minus driver is engaged. By engaging the jig with the jig engaging portion 311 and rotating the jig, The retaining portion 303 is rotated, and the shaft portion 305 is fastened to the cylindrical portion 5.

  Such a retaining portion 303 is fixed to the cylindrical portion 5 via the engaging portion 309, so that the disk portion 307 is disposed on the fixed portion 7 side of the cylindrical portion 5.

  In a state where the disk portion 307 is disposed on the fixed portion 7 side, the cross-sectional area of the cylinder portion 5 is reduced by the disk portion 307 in the cross-sectional area when the cylinder portion 5 is cut in the radial direction.

  Thus, by making the cross-sectional area of the cylinder part 5 small by the disk part 307, the engagement which engages with the length direction of the cylinder part 5 of the thermosetting resin 11 with which the cylinder part 5 was filled, and the disk part 307 is carried out. The area can be increased, and the thermosetting resin 11 can be stably held in the cylindrical portion 5.

  In addition, since the disk portion 307 is disposed on the fixed portion 7 side of the cylindrical portion 5, it does not interfere with the terminal portions of the plurality of electric wires 3 housed in the cylindrical portion 5.

  For this reason, the outer diameter of the disk part 307 can be increased to the maximum so as to have a gap with the inner peripheral surface of the cylinder part 5, and the engagement area of the disk part 307 with the thermosetting resin 11 can be increased. Can be maximized.

  The retaining portion 303 is formed separately from the tubular portion 5, but the shaft portion 305 may be formed as a single member continuous with the tubular portion 5 on the fixed portion 7 side of the tubular portion 5.

  In such a pooling eye 301, the retaining portion 303 includes a shaft portion 305 provided integrally with the fixed portion 7 side of the tube portion 5, and an inner diameter of the opening 9 provided integrally with an end portion of the shaft portion 305. Since the disk portion 307 is formed with a smaller outer diameter, a gap is formed between the disk portion 307 and the inner periphery of the cylindrical portion 5 by arranging the disk portion 307 at a position that does not interfere with the terminal portion of the electric wire 3. By enlarging the outer diameter of the disk part 307 to the maximum so as to have a large area, the engagement area between the thermosetting resin 11 and the disk part 307 can be increased to the maximum. Can be held more stably.

  In addition, since the retaining portion 303 is formed separately from the cylindrical portion 5 and is fixed to the cylindrical portion 5, the retaining portion 303 can be easily detached from the cylindrical portion 5, and fits inside the cylindrical portion 5. The shape and diameter of the retaining portion 303 can be easily changed.

  In the pooling eye according to the embodiment of the present invention, for example, the retaining portion is configured to have only a blocking wall portion and a blocking hole portion. However, the present invention is not limited thereto, and for example, the retaining portion is a blocking wall. In addition to the part and the blocking hole part, it may be configured to have a plurality of convex parts, and the retaining part shown in each embodiment may be combined.

  In addition, the blocking hole portion is provided in the central portion of the blocking wall portion, and a plurality of electric wires are collectively inserted. However, the present invention is not limited thereto, and a plurality of blocking hole portions are provided in the blocking wall portion. You may make it let each electric wire penetrate.

  Further, like the blocking hole portion, the partition hole portion is also provided in the central portion of the partition wall portion. However, the present invention is not limited to this, and a plurality of partition hole portions may be provided in the partition wall portion.

DESCRIPTION OF SYMBOLS 1,101,201,301 ... Pooling eye 3 ... Electric wire 5 ... Cylindrical part 7 ... Fixed part 9 ... Opening part 11 ... Thermosetting resin 13, 103, 203, 303 ... Stopping part 15 ... Blocking wall part 17 ... Closing hole part DESCRIPTION OF SYMBOLS 105 ... Convex part 205 ... Partition wall part 207 ... Partition hole part 305 ... Shaft part 307 ... Disk part

Claims (6)

A cylindrical portion in which terminal portions of a plurality of electric wires are accommodated, a fixing portion integrally provided at one end of the cylindrical portion, and a terminal portion of the plurality of electric wires provided to be inserted into the other end of the cylindrical portion. A pooling eye comprising an opening and a thermosetting resin that fills the inside of the cylindrical portion and prevents the terminal portions of the plurality of electric wires from coming off from the cylindrical portion,
The cylindrical portion is formed with the same outer diameter between the fixed portion and the opening, and is provided with a retaining portion that engages with the thermosetting resin in the length direction of the cylindrical portion,
The pooling eye, wherein the retaining portion is continuously arranged in the circumferential direction so as to reduce a cross-sectional area of the cylindrical portion. The pooling eye according to claim 1,
The retaining portion is integrally provided on the opening side of the tubular portion so as to close the opening, and the end portion of the electric wire is inserted through the closing wall. A pooling eye, characterized in that it has a closing hole portion that is formed with an inner diameter smaller than the inner diameter of the opening. The pooling eye according to claim 1 or 2,
The retaining portion is provided integrally with a partition wall portion provided on the fixed portion side of the tube portion so as to partition the inside of the tube portion in the length direction, and is provided through the partition wall portion. A pooling eye having a partition hole formed with an inner diameter smaller than the inner diameter of the opening. The pooling eye according to any one of claims 1 to 3,
The retaining portion includes a shaft portion provided integrally with the fixed portion side of the cylindrical portion, and a disk portion formed integrally with the end portion of the shaft portion and having an outer diameter smaller than the inner diameter of the opening portion. A pooling eye characterized by comprising: The pooling eye according to any one of claims 1 to 4,
The pooling eye, wherein the retaining portion has a plurality of convex portions integrally provided on an inner peripheral surface of the cylindrical portion along a length direction of the cylindrical portion. The pooling eye according to any one of claims 1 to 5,
The pooling eye, wherein the retaining portion is formed separately from the cylindrical portion and is fixed to the cylindrical portion.

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