JP5634232B2 - Connection cover - Google Patents

Description

  The present invention relates to a connection cover that covers a sleeve that connects electric wires.

  Conventionally, when two wires are connected in series, the end of each wire is stripped to expose the conductive wire, and the exposed portion of the conductive wire is inserted from both ends of the sleeve formed in a cylindrical shape Then, the outer surface of the sleeve is caulked to fix the conductive wire within the sleeve, and the electric wires are connected.

  In addition, in order to insulate the sleeve and the exposed conductive wire that could not fit into the sleeve, so-called charging part, a cylindrical connection cover made of an insulating material is attached to the electric wire, and the charging part is covered with this connection cover. The connection cover was fixed to the electric wire (Patent Document 1).

  As shown in FIG. 10, when the connection cover 100 is attached to an electric wire to insulate the charging unit 200, the end 201 of the charging unit 200 and the end 101 of the connection cover 100 are sufficient for insulation. It is formed in a length that allows for a distance.

Further, the connection cover 100 is formed such that both end portions outside the portion covering the charging unit 200 are tapered.
When fixing the connection cover 100 to the electric wire, the connection cover 100 is fixed by winding the tape spirally from the end of the connection cover 100 to the electric wire, and winding the tape so that adjacent tapes partially overlap. It was.

JP-A-8-280128

  However, if the connection cover 100 can be attached to the electric wire so that the charging unit 200 comes to the center in the longitudinal direction, the connection cover 100 exhibits sufficient insulation performance. Positioning when attached is difficult, and as shown by the two-dot chain line in FIG. 10, in some cases, the distance between the end 201 of the charging unit 200 and the end 101 of the connection cover 100 is insufficient for insulation. There was a possibility of being fixed at a distance.

  Therefore, in view of the above points, an object of the present invention is to provide a connection cover that can be fixed at an appropriate position to insulate a charging unit.

The invention described in claim 1, which achieves the above object, comprises two or more members used in combination, and includes at least the sleeve of a sleeve for connecting an electric wire and a portion requiring insulation around the sleeve. A connection cover that covers the charging unit, extending from an inner edge of the insertion hole through which the electric wire passes, and closing a portion that also opens the electric wire through the insertion hole, and insulating the charging unit A drainage unit that is provided at a position separated from the charging unit by a distance that can be secured, and that discharges moisture that has entered the connection cover to the outside. The creeping distance that passes between the overlapping portions where each member overlaps and reaches the outer surface of the connection cover is formed in a shape that can ensure the insulation of the charging unit, and the draining means is Characterized in that said a drainage groove formed in the closed portion.

  Since this connection cover is formed by combining two or more members, the first member is attached at a position where the charging part can be insulated, and then the other member is attached to the first member. The part can be fixed to the electric wire in a state of being reliably insulated.

  Specifically, two or more members are formed into a shape with a crack in the axial direction, and the second member is combined with the first member so as to cover the crack of the first member for insulation. It can be considered to be a structure.

  In this case, if the first member is attached to the electric wire through the crack portion and attached to the electric wire while looking at the charged portion through the crack portion, the second member may be covered with the first member. Since the 1st member is arrange | positioned in the suitable position in order to insulate a charging part, the connection cover of this invention can be fixed in the appropriate position in order to insulate a charging part.

It is also conceivable to construct a connection cover by combining two or more members in series along the axial direction of the electric wire.
In this case, since each member is short, the positional relationship between the charging unit and the first member can be properly grasped. Therefore, if this first member is placed at an optimum position to insulate the charging part and other members are combined with the first member, the first member insulates the charging part. Therefore, the connection cover of the present invention can be fixed at an appropriate position in order to insulate the charging part.

  In addition, when two or more members are combined to form a single connection cover, the creepage distance of the portion from the charging part to the outer surface of the connection cover through the overlapping portion where the members overlap by the combination is determined. If not enough, the live parts cannot be reliably insulated.

  However, in the present invention, since the creepage distance is formed to a length that can insulate the charging unit, the charging unit can be reliably insulated even in a structure using a combination of two or more members.

Therefore, when the connection cover of the present invention is used, the charging unit can be attached to a position where it can be reliably insulated, and the combined portion can be reliably insulated.
When connecting the wires with sleeves, as described above, the coating of the ends of each wire is peeled to expose the conductive wires, and the exposed portions of the conductive wires are inserted into the sleeve, and the outer surface of the sleeve is Each conductive wire was connected by fixing the conductive wire in the sleeve by caulking.

The charging unit means at least a sleeve, and when there is an exposed conductive wire that could not be inserted into the sleeve, it means a portion including the sleeve and the conductive wire.
By the way, in the conventional connection cover, the first purpose of winding the tape so that a part of the adjacent tapes overlaps is to securely fix the connection cover to the electric wire. The purpose was also to prevent intrusion.

This is because if the moisture penetrates into the connection cover, the conductive wire portion covered with the wire in the charging portion rusts, and in the worst case, the wire may be disconnected.
However, depending on the skill level of the operator, the tape could not be wound well, and as a result, it could not be said that there was no possibility of water entering the connection cover.

  However, when the problem is examined in detail, water enters the connection cover, and the problem is not that water penetrates into the connection cover, but water stays in the connection cover, resulting in the exposed conductive The wire was rusting.

Therefore, the connection cover according to claim 1, provided in front SL is released only from the charging unit distance can be secured insulation of the charging unit position, draining of releasing moisture penetrates to the connection in the cover to the outside It comprised so that a means might be provided.

  In this way, even if moisture enters the connection cover, the moisture is immediately discharged to the outside by the draining means, and further heated by sunlight or the like to be discharged to the outside as water vapor.

  In addition, when such a drainage means is provided, the insulation of the charging part becomes a problem. However, this point can also be solved by providing the drainage means at a position away from a distance where the insulation of the charging part can be ensured.

  Therefore, when the connection cover of the present invention is used, it is possible to effectively prevent moisture from remaining in the connection cover for a long period of time, so that it is possible to reliably prevent the rust of the exposed conductive wires.

In addition, the connection cover is extended from the inner edge of the insertion hole through which the electric wire passes to prevent small animals such as dust and insects from entering the connection cover, and is also opened through the insertion hole. There may be a closed portion that closes the insertion hole of the portion.

Therefore, the connection cover according to claim 1 includes a drainage groove formed in the closed portion as the drainage means .
By the way, the connection cover is required to always insulate the charging unit by covering the charging unit at all times.

Therefore, the connection cover according to claim 2 includes a hooking portion that prevents the wire from being moved in the longitudinal direction of the electric wire by being hooked on the sleeve when attached to a position covering the charging portion.
In this way, the connecting portion of the present invention is not displaced from the position where the charging portion is insulated by the hooking portion, so that the charging portion is always reliably insulated by the connecting cover.

Note that, as described in claim 3 , the hook portion may be formed by a protrusion protruding from the inner wall surface of the connection cover.
Next, the connection cover according to a fourth aspect is the connection cover according to any one of the first to third aspects, wherein the connection cover is formed in a substantially cylindrical shape, and a part of one of the members is replaced with the other of the other. It is composed of a plurality of the above-mentioned members that are connected in series along the axial direction of the cylinder by being inserted into the member, and the overlapping portion is formed on the outside of one of the members on the insertion side when connecting the members. It is a portion where the surface and the inner surface of the other member on the insertion side overlap each other.

  Since the connection cover is composed of a plurality of members formed in a cylindrical shape that are connected in series along the axial direction of the tube, the length of each member is shorter than the entire connection cover. Therefore, even if each member is attached to the electric wire before connecting the electric wire with the sleeve, even if so-called tipping is performed, the electric wire connecting operation is not hindered.

  In addition, the connection cover of the present invention has a creepage distance passing through an overlapping portion where the outer surface of one member on the insertion side and the inner surface of the other member on the insertion side overlap each other when connecting each member. Since each member is formed so as to have a distance capable of insulating the charging portion, the charging portion can be reliably insulated.

Therefore, when the connection cover of the present invention is used, it is possible to perform the attachment while reliably insulating the charging part.
Next, the connection cover according to claim 5 is formed in a substantially cylindrical shape, and has a split along the axial direction, and is composed of two large and small members used in combination. A connection cover that covers at least a charging part including the sleeve among parts that need to be insulated around a sleeve, wherein each member passes from the charging part through an overlapping part where each member overlaps in combination. The creeping distance to the outer surface of the connection cover is formed in a shape that can ensure the insulation of the charging unit, and the sleeve is covered with the small member, and the crack of the small member is covered. It is combined by covering the small member with the large member, and the overlapping portion is formed when the small member is covered with the large member. The internal surface of the large member and the external surface of the small member overlap each other, and the connection cover positions the large member with respect to the small member when the large member is put on the small member. A positioning frame is formed on the outer surface of the small member to define a position where the large member is located when the small member is placed on the small member. The large member is positioned by being fitted in the demarcating frame when the large member is put on the small member.

  If this connection cover is used, each member formed in a cylindrical shape is formed with a crack along the axial direction. Therefore, after connecting the electric wire with the sleeve, the crack in each member is opened to cover the charging part. It can be attached to, i.e., retrofitted.

  In the connection cover of the present invention, when a small member is covered with a large member, the creeping distance passing through the overlapping portion where the inner surface of the large member and the outer surface of the small member overlap is a distance that can insulate the charging unit. Since each member is formed so as to become, it is possible to reliably insulate the charging part.

Therefore, when the connection cover of the present invention is used, it can be retrofitted while reliably insulating the charging part.
In the present invention, there is provided positioning means for positioning the large member with respect to the small member when the small member is covered with the large member .

This is because a protective pipe may be attached to an electric wire during construction, but when this protective pipe is attached, it is assumed that a large member is displaced in the axial direction with respect to a small member. This is because such a displacement can be prevented by providing such positioning means.

The positioning means may take any form, but as described above , when a small member is covered with a large member, a positioning frame that represents the place where the large member is located is formed on the outer surface of the small member. It is preferable to form the large member so that the large member is fitted and positioned in the positioning frame when the large member is put on the small member .

In this way, only covered a small member to fit a large member positioning frame, since Ru can prevent the deviated larger member for small member.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of the connection cover of 1st Embodiment, (a) is a perspective view (before assembly), (b) is the front view (after assembly) shown in the partially transparent view, (c) is a right view ( After assembly). It is a perspective view which shows a mode that the connection cover was attached to the electric wire. It is A-A 'sectional drawing of FIG.1 (b), It is explanatory drawing for demonstrating creepage distance. It is explanatory drawing of the connection cover of 2nd Embodiment, (a) is a perspective view (before assembly), (b) is a front view (after assembly) partially shown in a transparent view, (c) is a right side view ( After assembly). It is a perspective view which shows a mode that the member 3 is slid and attached to the member 2. FIG. It is explanatory drawing of the connection cover of 3rd Embodiment, (a) is a disassembled perspective view, (b) is a perspective view, (c) is a permeation | transmission figure. It is explanatory drawing explaining a creeping distance. It is explanatory drawing of the connection cover of 4th Embodiment, (a) is a disassembled perspective view, (b) is a perspective view, (c) is a permeation | transmission figure. It is explanatory drawing explaining a creeping distance. It is a schematic diagram of the conventional connection cover.

Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
As shown in FIG. 1A, the connection cover 1 of the present embodiment is formed in a substantially cylindrical shape using an insulating and flexible resin (EEA resin (Ethylene-Ethylacrylate Copolymer in this embodiment)). Two members 2 and 3 are provided.

  The member 2 is formed with a diameter larger than that of the sleeve to which the electric wire is connected, and is formed with a diameter smaller than that of the member 3, and a crack 20 is formed along the axial direction. The member 2 is formed in a so-called belly crack shape by forming the crack 20.

  Further, the insertion hole 21 through which the electric wire of the member 2 passes is provided with a closing fold 22 extending from the inner edge of the insertion hole 21. As shown in FIG. 2, the closing fold 22 closes this portion because there is a portion that is open even through the electric wire through the insertion hole 21.

The clogging folds 22 are provided at substantially equal intervals along the circumferential direction of the insertion hole 21, and a plurality of drainage grooves 23 that are elongated along the radial direction of the insertion hole 21 are formed.
Further, as shown in FIG. 1B, a plurality of protrusions 24 are provided on the inner surface of the member 2 so as to protrude toward the inner space of the member 2.

The connection cover 1 of the present embodiment is attached to the electric wire so that the sleeve (shown by a two-dot chain line in FIG. 1B) is arranged in the center of the connection cover 1 in the axial direction.
The plurality of protrusions 24 are caught at both ends of the sleeve in the axial direction so that the member 2, and thus the connection cover 1, does not shift with respect to the sleeve. To prevent.

Specifically, as shown in FIG. 1C, four protrusions 24 are formed at equal intervals around the axis of the member 2 in the axial direction.
In the connection cover 1 of the present embodiment, when the sleeve is hooked in the connection cover 1 by the protrusion 24, the distance from the end of the charging unit described later to the drain groove 23 can ensure the insulation of the charging unit. It is formed long enough to be a distance.

  Next, as shown in FIG. 1A, the member 3 is formed with a diameter larger than that of the member 2, and a crack 30 is formed along the axial direction. The member 3 is also formed in a so-called belly crack shape by forming the crack 30.

The member 3 can be covered with the member 2 so as to cover the crack 20 of the member 2, and is connected to each member 2 so that the members 2, 3 are not separated when removed from the member 2. .
In addition, on the outer surface of the member 2, three button projections 25 are provided at equal intervals along the axial direction.

The member 3 is provided with a plurality of engagement holes 31 into which the button protrusions 25 are fitted at positions facing the portions where the button protrusions 25 are located when attached to the member 2.
Therefore, as shown in FIG. 2, when the member 2 is attached to the electric wire and the member 2 is covered with the member 3, the member 2 and the member 3 are connected to the member 2 and the member 3, and these button protrusions. By engaging 25 with the engagement hole 31, the member 3 is securely fixed to the member 2.

  Further, as shown in FIG. 3, in the connection cover 1 of the present embodiment, when the member 3 is fixed to the member 2, a portion where the inner surface of the member 3 and the outer surface of the member 2 overlap each other from the charging portion (sleeve). The creeping distance that reaches the outer surface of the connection cover 1 through the gap is formed to a length that can ensure the insulation of the charging part.

Using the connection cover 1 configured as described above, a method for covering a charging unit including a sleeve that connects electric wires and a portion where exposed conductive wires are exposed will be described.
First, the charging unit will be described.

  When the electric wires and the electric wires are electrically connected using a sleeve, an operation is performed so that the end portions of the electric wires are stripped so that the inner conductive wires are exposed. Then, the exposed conductive wire is inserted from both ends of the sleeve formed in a cylindrical shape from the tip, and when the tip of the conductive wire of each electric wire comes into contact with the inside of the sleeve, the sleeve is caulked from the outside to connect the conductive wire to the sleeve. Stop inside. At this time, the wire is stripped longer than the wire inserted into the sleeve, so that a portion where the conductive wire is exposed remains around the sleeve.

In the present embodiment, as shown in FIG. 1B, the charging unit refers to a portion where a sleeve and a conductive wire around the sleeve are exposed.
The operation | work which connects an electric wire using the connection cover 1 of this embodiment is performed as follows.

First, as described above, the coating of the tip of each electric wire to be connected is peeled off so that the conductive wire inside the electric wire is exposed.
Next, the tip of the conductive wire of each electric wire is inserted from both sides of a sleeve formed in a cylindrical shape.

And if the front-end | tip of the electric wire of each electric wire contacts inside a sleeve, a sleeve will be crimped and an electric wire will be connected.
Next, the crack 20 of the member 2 of the connection cover 1 of this embodiment is opened, and the member 2 is attached to the electric wire in which the charging part is formed. Since the connection cover 1 of this embodiment is formed in a size that can cover the charging unit, the charging unit is covered by the member 2.

  At this time, since the member 2 is provided with a protrusion 24 protruding from the inner surface, a sleeve is hooked on the protrusion 24 so that the member 2 is in the longitudinal direction of the electric wire with respect to the charging portion. The member 2 is attached to the electric wire so as not to move along.

Moreover, when attaching this member 2 to an electric wire, it sees a charging part from between the cracks 20, and arrange | positions so that a sleeve may come to the center of a longitudinal direction.
Next, the crack 30 of the member 3 is opened, and the member 3 is covered with the member 2. At this time, the member 3 is covered so as to cover the crack 20 of the member 2.

Then, the button protrusion 25 of the member 2 is engaged with the engagement hole 31 of the member 3, and the member 3 is stopped on the member 2.
The connection cover 1 of this embodiment described above has the following characteristics.

  Since the connection cover 1 of the present embodiment is formed in a belly crack shape, after connecting the wires with a sleeve, the cracks 20 and 30 are opened and the members 2 and 3 are attached later, that is, retrofitting is possible. It is.

  In addition, since the connection cover 1 of the present embodiment can be attached so that the sleeve is disposed in the center in the longitudinal direction of the member 2 through the split 20 when the member 2 is attached to the electric wire, the sleeve is attached to the protrusion 24. Can be securely attached to the wire so as to be caught.

As a result, the distance between the end of the charging unit and the end of the connection cover 1 can be reliably attached to the electric wire so that the charging unit can be insulated.
Further, as shown in FIG. 3, the connection cover 1 of the present embodiment has a creepage distance from the charging unit passing between the members 2 and 3 to the outer surface of the connection cover 1 to insulate the charging unit. It is formed in a shape that can be secured.

Therefore, even if the charging part is covered by retrofitting using the members 2 and 3 having the belly crack shape like the connection cover 1 of the present embodiment, the charging part can be reliably insulated.
In addition, since the connection cover 1 of the present embodiment is provided with the closing fold 22 in the insertion hole 21, as shown in FIG.

Therefore, the closed fold 22 can prevent small animals such as dust and insects from entering the connection cover 1.
On the other hand, since the drainage groove 23 is formed in the closing fold 22, even if moisture enters the connection cover 1, it can be discharged to the outside through the drainage groove 23. As a result, it is possible to prevent moisture from staying in the connection cover 1 and rusting the sleeve.

  In addition, the member 2 and the member 3 of the connection cover 1 of the present embodiment cover the small member 2 with the large member 3 so as to cover the crack 20 of the small member 2, and engage the button protrusion 25 with the engagement hole 31. The members 2 and 3 are connected so as not to be separated when the large member 3 is removed from the small member 2.

Therefore, if the member 3 is placed over the member 2, the crack 20 of the member 2 can be reliably covered with the member 3, and even if the member 3 is removed from the member 2, it does not fall apart.
(Second Embodiment)
Next, a second embodiment will be described.

Regarding the connection cover 1 of the second embodiment, the same configuration as that of the first embodiment will be described with the same reference numerals, and only differences from the first embodiment will be described.
As shown in FIG. 4A, the connection cover 1 of the present embodiment is different from the connection cover 1 of the first embodiment in that the member 2 and the member 3 are not connected, the button protrusion 25, the engagement hole. The difference is that 31 is not provided.

In addition, as shown in FIG. 4A, the connection cover 1 of the present embodiment is provided with a demarcating frame 26 that demarcates the position where the member 3 is to be placed on the outer surface of the member 2.
The demarcating frame 26 includes a first portion 26 a that a long side along the axial direction that forms the crack 30 of the member 3 hits when the member 3 is covered with the member 2, and one axial direction of the member 3. It consists of a second portion 26b that hits the end portion and a third portion 26c that hits the other end portion of the member 3 in the axial direction.

  As shown in FIG. 4B, when the member 3 is attached to the member 2 so as to fit into the demarcating frame 26, the member 2 and the member 3 cover the crack 20 of the member 2, and are large members from the charging portion (sleeve). The creeping distance that passes through the portion where the inner surface of 3 and the outer surface of the small member 2 overlap and reaches the outer surface of the connection cover 1 (see FIG. 3) is a length that can ensure insulation of the charging part. It is formed in size.

The operation | work which connects an electric wire using the connection cover 1 of this embodiment is performed as follows.
First, as described above, an electric wire is connected using a sleeve.
Next, the crack 20 of the member 2 of the connection cover 1 of the present embodiment is opened, and the member 2 is attached to the position where the charging part is covered.

Next, as shown in FIG. 5, the crack 30 of the member 3 is opened, and the member 3 is attached to the member 2 so that the member 3 fits into the defining frame 26 of the member 2.
The connection cover 1 of the present embodiment described above has the following characteristics in addition to the characteristics having the connection cover 1 of the first embodiment.

  In the connection cover 1 of this embodiment, when the member 3 is assembled to the member 2 so as to fit into the demarcating frame 26 (see FIG. 5), the crack 30 of the member 2 ensures a creepage distance necessary for insulation of the charging part. In this way, the charging part can be reliably insulated.

  Further, since the connection cover 1 of this embodiment is attached so that the member 3 fits into the demarcating frame 26 when the member 2 and the member 3 are combined, the member 3 slides in the axial direction with respect to the member 2. It is possible to prevent it from coming off.

(Third embodiment)
Next, the connection cover 1 of 3rd Embodiment is demonstrated.
As shown in FIG. 6A, the connection cover 1 is composed of two cylindrical members 4 and 5 that can be divided into two in the axial direction.

  The member 4 is formed with a diameter smaller than the main body 40 of the member 4 on the side facing the member 5 and inserted into the member 5 when combined with the member 5 as shown in FIG. The portion 41 is formed as shown in FIG. 6A, and a thread groove 42 is formed at the end of the outer surface of the insertion portion 41 on the main body 40 side.

By screwing a screw groove 42 and a screw groove 51 of the member 5 described later with the insertion portion 41 inserted into the member 5, the member 4 and the member 5 are connected as shown in FIG. 6B. .
In the member 4, as shown in FIG. 6 (a), on the side opposite to the side where the insertion portion 41 is formed, a wire through hole 43 a formed with an inner diameter substantially the same as the diameter of the wire is formed. A protrusion 43 having a hexagonal cross section on the outer surface is formed.

  A plurality of drain holes 44 that communicate with the inside of the main body 40 are provided at the end of the main body 40 of the member 4 on the protruding portion 43 side. Each drain hole 44 is formed long along the circumferential direction, and these drain holes 44 are formed at equal intervals along the circumferential direction.

On the inner surface of the main body 40 of the member 4, as shown in FIG. 6C, four protrusions 45 arranged at equal intervals along the circumferential direction are provided.
When the members 45 are connected to these protrusions 45 and protrusions 55 to be described later, both ends in the axial direction of the sleeve indicated by a one-dot chain line are caught, and the connected members 4, 5, that is, the connection cover 1 is attached to the sleeve. Prevent slippage. When the sleeves are stored in the members 4 and 5 while being hooked on the protrusions 45 and 55, the sleeve is stored in the connection cover 1 in a state of being arranged at the center in the axial direction of the connection cover 1.

As shown in FIG. 6A, the member 5 includes a main body 50 that is longer in the axial direction than the main body 40 of the member 4, but does not include a configuration corresponding to the insertion portion 41 unlike the member 4.
A screw groove 51 that is screwed into the screw groove 42 when the insertion portion 41 of the member 4 is inserted is provided at the end of the inner surface of the main body 50 of the member 5 on the side facing the member 4. .

The other components of the member 5 are the same as those of the member 4, and include a protruding portion 53 corresponding to the protruding portion 43 and a drain hole 54 corresponding to the drain hole 44.
On the inner surface of the main body 50 of the member 5, as shown in FIG. 6C, there are provided four protrusions 55 arranged at equal intervals along the circumferential direction.

  When the member 4 and the member 5 configured as described above are combined as shown in FIG. 7, the insertion unit 41 and the member 5 are combined by inserting the insertion unit 41 into the main body 50 from the charging unit. Is formed such that the creepage distance from the overlapping portion to the outer surface of the connection cover 1 is a length that can ensure the insulation of the charging portion. In particular, the length of the insertion portion 41 is the insulation of the charging portion. It has been adjusted to be a length that can be secured.

  In the connection cover 1 of this embodiment, when the sleeve is hooked in the connection cover 1 by the protrusions 45 and 55, the distance from the end of the charging unit to the drain holes 44 and 54 ensures the insulation of the charging unit. It is formed long enough to be a possible distance.

The operation | work which connects an electric wire using the connection cover 1 of this embodiment is performed as follows.
First, as described above, the coating of the tip of each electric wire to be connected is peeled off so that the conductive wire inside the electric wire is exposed.

Moreover, the member 4 and the member 5 are passed through separate electric wires.
Next, the tip of the conductive wire of each electric wire is inserted from both sides of a sleeve formed in a cylindrical shape.

And if the front-end | tip of the electric wire of each electric wire contacts inside a sleeve, a sleeve will be crimped and an electric wire will be connected.
Next, the members 4 and 5 are slid toward the sleeve.

  Then, the sleeve is housed inside the main body 40 of the member 4 and the main body 50 of the member 5, and the insertion portion 41 of the main body 40 is inserted into the main body 50 of the member 5. Then, when the screw groove 42 and the screw groove 51 are screwed together, the protrusions 45 and 55 are caught by the sleeve, and the connection cover 1 is fixed to the sleeve.

The connection cover 1 of this embodiment described above has the following characteristics.
The connection cover 1 of the present embodiment is formed so as to be split into two members 4 and 5 and is lighter and shorter than the integrated type, so it is attached to the wires even before connecting the wires with a sleeve. Will not interfere with the wire connection. That is, the connection cover of this embodiment can be attached in advance.

  Further, as shown in FIG. 6, the connection cover 1 of the present embodiment has a creeping distance from the charging unit to the outer surface of the connection cover 1 through the overlapping portion where the insertion unit 41 and the member 5 overlap. Since it is formed in a shape that can ensure the insulation of the charging part, the charging part can be reliably insulated even in a structure in which two members 4 and 5 that can be divided at the part where the charging part is provided are assembled. be able to.

  Since the connection cover 1 of this embodiment is provided with the drain holes 44 and 54, even if moisture enters the connection cover 1, it can be discharged to the outside through the drain holes 44 and 54. . As a result, it is possible to prevent moisture from staying in the connection cover 1 and rusting the sleeve.

(Fourth embodiment)
Next, the connection cover 1 of 4th Embodiment is demonstrated.
As shown in FIG. 8A, the connection cover 1 is composed of three cylindrical members 6, 7, and 8 that can be divided into three in the axial direction.

  In the main body 60 of the member 6, a screw groove 61 is formed on the inner surface on the side facing the member 7. Further, the main body 60 of the member 6 has a tapered detail 62 formed on the side opposite to the side facing the member 7, and the tip of the tip 62 is formed of rubber on the outer periphery of the tip on the narrow side. The O-ring 63 is wound, and the outer periphery of the O-ring 63 is covered with a resin 63a. An insertion hole (not shown) through which the electric wire can be inserted is formed at the tip of the tapered portion 62. The O-ring 63 prevents the rainwater from entering the connection cover 1 by fastening the tip of the tapered portion 62.

  A plurality of drain holes 64 that communicate with the inside of the main body 60 are provided at the end of the main body 60 of the member 6 on the tapered portion 62 side. Each drain hole 64 is formed long along the circumferential direction, and these drain holes 64 are formed at equal intervals along the circumferential direction.

As shown in FIG. 8C, four protrusions 65 arranged at equal intervals along the circumferential direction are provided on the inner surface of the main body 60 of the member 6.
These protrusions 65 and protrusions 85 to be described later prevent the sleeves 6 to 8 from being hooked at both ends in the axial direction of the sleeve and the connected members 6 to 8, that is, the connection cover 1, from being displaced with respect to the sleeve. When the sleeve 6 is housed in the members 6 to 8 while being hooked on the protrusions 65 and 85, the sleeve is housed in the connection cover 1 in a state of being arranged at the center in the axial direction of the connection cover 1.

  As shown in FIG. 8A, the member 8 is formed in a shape symmetrical to the member 6 and includes a drain hole 84, a protrusion 85, and the like corresponding to the drain hole 64 and the protrusion 65. Further, a tip portion 82 and an O-ring 83 corresponding to the tapered portion 62 and the O-ring 63 are provided, and the O-ring 83 is covered with a resin 83a. An insertion hole 82 a through which an electric wire can be inserted is formed at the tip of the tapered portion 82.

  The member 7 is formed on both sides of the main body 70 with a smaller diameter than the main body 40 of the member 4 and is inserted into the members 6 and 8 when combined with the members 6 and 8 as shown in FIG. Insertion portions 71 and 71 as shown in FIG. 8A are formed, and screw grooves 72 and 72 are formed on the main body 70 side of the insertion portions 71 and 71.

  As shown in FIG. 9, the members 6 to 8 thus formed are combined by inserting the insertion portion 71 into the main bodies 60 and 80 from the charging portion, whereby the insertion portion 71 and the members 6 and 8 overlap. The creeping distance that passes between the overlapping parts and reaches the outer surface of the connection cover 1 is formed in a shape that can ensure the insulation of the charging part. In particular, the length of the insertion part 71 insulates the charging part. The length is adjusted so that it can be secured.

  In the connection cover 1 of this embodiment, when the sleeve is hooked in the connection cover 1 by the projections 65 and 85, the distance from the end of the charging unit to the drain holes 64 and 84 ensures the insulation of the charging unit. It is formed long enough to be a possible distance.

The operation | work which connects an electric wire using the connection cover 1 of this embodiment is performed as follows.
First, as described above, the coating of the tip of each electric wire to be connected is peeled off so that the conductive wire inside the electric wire is exposed.

Further, the members 6 and 8 are passed through separate electric wires, and the member 7 is passed through either one of the electric wires.
Next, the tip of the conductive wire of each electric wire is inserted from both sides of a sleeve formed in a cylindrical shape.

And if the front-end | tip of the electric wire of each electric wire contacts inside a sleeve, a sleeve will be crimped and an electric wire will be connected.
Next, the members 6 to 8 are slid toward the sleeve.

  Then, the sleeve is housed inside the main bodies 60, 70, 80 of the members 6 to 8, and the insertion portions 71, 71 of the main body 70 are inserted into the main bodies 60, 80 of the members 6, 8. Then, when the screw groove 61 and the screw groove 72 are screwed together, the protrusions 65 and 85 are caught by the sleeve, and the connection cover 1 is fixed to the sleeve.

The connection cover 1 of this embodiment described above has the following characteristics.
The connection cover 1 of the present embodiment is formed so as to be divided into three members 6 to 8 and is lighter than an integrated type, so that the wires can be connected even before they are connected to each other with a sleeve. Does not interfere with connection. That is, the connection cover 1 of the present embodiment can be attached in advance.

  Further, in the connection cover 1 of the present embodiment, the creeping distance from the charging unit to the outer surface of the connection cover 1 through the overlapping portion where the insertion unit 71 and the members 6 and 8 overlap each other insulates the charging unit. Since it is formed in the shape which becomes the length which can be ensured, even if it is a structure which assembles the three members 6-8 which can be divided | segmented in the part in which the charging part is provided, a charging part can be insulated reliably.

  Since the connection cover 1 of the present embodiment is provided with the drain holes 64 and 84, even if moisture enters the connection cover 1, it can be discharged to the outside through the drain holes 64 and 84. . As a result, it is possible to prevent moisture from staying in the connection cover 1 and rusting the sleeve.

Note that the present invention is not limited to the above-described embodiment as long as it meets the gist of the invention described in the claims.
For example, in the above embodiment, an EEA resin is used as the resin for forming the connection cover 1, but other resins may be used as long as they have insulating properties and flexibility. For example, a polyethylene resin Alternatively, an EVA resin (Ethylence-Vinyl Acetate) or a terephthalic acid (TPA) resin may be used.

DESCRIPTION OF SYMBOLS 1 ... Connection cover, 2-8 ... Member, 20 ... Crack, 21 ... Insertion hole, 22 ... Closure fold, 23 ... Drainage groove, 24 ... Protrusion, 25 ... Button protrusion, 26 ... Definition frame, 26a ... 1st part, 26b ... 2nd part, 26c ... 3rd part, 30 ... Crack, 31 ... Fitting hole, 40 ... Main body, 41 ... Insertion part, 42 ... Screw groove, 43 ... Projection part, 43a ... Through-hole, 44 ... Drainage hole , 45 ... Projection, 50 ... Main body, 51 ... Screw groove, 53 ... Projection, 54 ... Water drain hole, 55 ... Projection, 60 ... Main body, 61 ... Screw groove, 62 ... Tapered, 63 ... Rubber, 64 ... Water drain hole , 65 ... projection, 70 ... main body, 71 ... insertion part, 72 ... thread groove, 84 ... drainage hole, 85 ... projection.

Claims (5)

A connection cover that includes two or more members used in combination, and covers a charging unit including at least the sleeve among a sleeve that connects an electric wire and a portion that needs insulation around the sleeve,
  A closing portion that extends from an inner edge of the insertion hole through which the electric wire passes and closes a portion that is also opened through the electric wire to the insertion hole;
  A draining means provided at a position separated from the charging unit by a distance that can ensure insulation of the charging unit, and discharging moisture that has entered the connection cover to the outside;
    With
  Each member is
    The creeping distance from the charging unit to the outer surface of the connection cover through the overlapping portions where the respective members overlap by combination is formed in a shape that can ensure the insulation of the charging unit,
  The draining means is
    A connection cover, characterized in that it is a drainage groove formed in the closed portion. The connection cover according to claim 1 ,
A connection cover, comprising: a hook portion that is prevented from moving in the longitudinal direction of the electric wire by being hooked on the sleeve when attached to a position covering the charging portion. The connection cover according to claim 2 ,
The hooking portion is a projection protruding from an inner wall surface of the connection cover. In the connection cover of any one of Claims 1-3 ,
It is formed in a substantially cylindrical shape and comprises a plurality of the members combined in series along the axial direction of the cylinder by inserting a part of one of the members into the other member,
The overlapping portion is
A connection cover, characterized in that when connecting each member, the outer surface of one of the members on the insertion side overlaps with the inner surface of the other member on the insertion side. It is formed in a substantially cylindrical shape, and is formed of two large and small members that are used in combination with a crack formed along the axial direction, and at least the sleeve that connects the wire and the portion that requires insulation around the sleeve A connection cover that covers the charging unit including the sleeve,
  Each member is
    The creeping distance from the charging unit to the outer surface of the connection cover through the overlapping portions where the respective members overlap by combination is formed in a shape that is a length that can ensure insulation of the charging unit. , By covering the sleeve with the small member, and covering the small member with the large member so as to cover the crack of the small member,
  The overlapping portion is
    When the small member is covered with the large member, the inner surface of the large member and the outer surface of the small member overlap,
  The connection cover
    A positioning means for positioning the large member with respect to the small member when the large member is put on the small member;
  On the outer surface of the small member,
    As the positioning means, a demarcation frame is formed that demarcates where the large member is located when the small member is covered with the large member,
  The large member is
    A connection cover, wherein the connection cover is positioned by being fitted into the demarcating frame when the small member is put on the small member.

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