JPH1075522A - Transparent joint box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transparent joint box which makes possible safe and convenient visual inspection while the troublesome works and a cost can be saved. SOLUTION: A box having two or more entrances 14 is formed by unifying separated boxes 1-A and (1-B) and a box having one entrance 14 may be formed by the integral molding or the separation molding. In any case, a soft part 21 or a pleated part 2 is provided at a certain depth from the entrance 14. The circumferences of the housing spaces of a box main part 13, etc., are made to be thick enough to withstand an impact. After the joint part is housed, the outer circumferences of the soft parts or pleated parts 21 are compressed or tying bands are inserted through tying holes to tie the outer coverings of cables. Bottom parts are provided with bottomed caps 16-B or bottomed soft parts. The bottom parts are cut off if necessary and, if not necessary, left as they are.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent joint box used as an insulating cover for a joint between a trunk line and a branch line in an electric wiring work.

[0002]

2. Description of the Related Art In the electrical wiring work, a method of insulating a part where a main line is jointed is mainly a method of storing a joint part in a case and then injecting and solidifying a resin mucus in the case, and then temporarily putting the joint part in a case. After injecting the resin mucus, it is impossible to modify the connection part or perform additional construction.In that case, cut the wires from each inlet of the case, joint the shortened wires, and then reconnect them. It takes a great deal of time and effort to inject the resin mucus into the renewal case, and incurs the duplication of expense. Insulating the branch wiring part of the branch line requires a small volume on the outlet box or the fixed base attached to the building material. A box having a structure in which a box is attached to the fixed base, the box is attached to the fixed base, and the connection portion is pushed in is used.

[0003]

Therefore, the present invention eliminates the steps of injecting the resin mucus into the box housing the joint portion, attaching the fixing stand, and forcibly pushing the joint into a narrow box, and improving the electrical safety, etc. The purpose is to increase the safety and speed of the system and to reduce the wiring cost.

[0004]

In order to solve the above-mentioned problems, in a method of insulating and protecting a joint part of a trunk line, a thickness of a main body part of a box is increased to enhance insulation and resistance to impact. By making sure, the injection of resin mucus is unnecessary, and it is further transparent to enable visual inspection from outside, and a soft part or a plurality of folds provided at a fixed position in the back from the part around each entrance of the box A part of the outer circumference is compressed to insulate and enclose the cable sheath or a soft part is provided with a binding hole common to the front and back, and a binding band is passed through this hole to prevent the cable from coming off and stored. The hot air that has accumulated in the space is discharged through a plurality of gaps formed during the folding and folding of the wrinkles or folds formed in the soft portion or through the binding holes of the soft portion to prevent high temperature, Through the gap The line portions without margin touch the human body or an object, once the box Solving cohesion even after use is obtained by configured to be able to recover and re-use.

[0005] Even when used for branch connection of a branch line, the same effect as the above-mentioned trunk line can be obtained, and when the box of the present invention is fixed to a building material, the outer periphery of a soft part or a fold or a binding hole is used. Can be bundled and fixed together with the construction material with a binding band or the like that passes through.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In the present application, a resin material having excellent self-extinguishing properties due to flame retardancy, insulation, and transparency is used, and particularly, a fold or a soft portion is formed of a soft material that softly encases an electric cable. In addition, the shape of the box itself can be easily formed into various shapes according to the joint shape of the electric wire, such as T-shaped, cross-shaped, both ends, etc. . Those with a shape other than both ends are molded in two parts, one part is attached with a joint part of the electric wire, and the other division box is combined with the other part to form a foreskin, and the outer circumference of the fold or soft part is compressed or bound. And keep it out. In the case of a double-ended type, it may or may not be split molded.If not split, pass the wire end through the box body from the entrance before wiring, place the joint part in the center of the box after wiring, and The outer periphery of the soft part or the fold part is compressed foreskin and fixed. In order to stabilize the compression member of the soft portion and the fold portion, a stop hole or a binding hole through which the compression member passes is provided in the soft portion and the fold portion. When the connection is changed or re-branched, if the compression member such as the binding band is released, it is disassembled and the connection is corrected, expanded, and restored to be reusable.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings showing an embodiment of the present invention, an arrow B indicates a transparent joint box, in which a joint portion of a three-branched wire terminal is housed and binding is completed. Arrow C is a bottom surface showing the binding state, and shows a state in which the entire fold of the cable sheath 7 is folded by the compression of the binding band 6 so that the folds 2 are softly insulated and enveloped, and a plurality of gaps 20 are formed. Reference numerals 1-A and 1-B denote a divided box, which is formed by dividing into two parts and combining the two divided boxes, or by connecting the combination edge portion 3 at the center to be divided into two parts by a connecting bent part 12 to form a joint box which can be opened and closed freely. Reference numeral 2 denotes a fold portion, which is provided with a plurality of folds all around the box from the periphery of the entrance 14 of the box to a certain depth.
When the folds 2 fold over and insulate the foreskin to prevent them from slipping out and to repair the connection after use, once the compression member is released, the folds 2 or the soft part 21 are restored and the joint is repaired or replaced, and the joint is repaired. It can be used for use. Reference numeral 3 denotes a combination edge, which is divided box 1-A.
It is the edge of the end face which combines 1-B. Reference numeral 4 denotes a storage space, the outer periphery of which is transparent and not thickened, and is an inner packet part that is insulated and protected from external impact. Reference numeral 5 denotes a stop hole, which is provided substantially at the outer periphery of the center of the fold portion 2 and the soft portion 21.
Etc. are passed through this hole to prevent movement. Reference numeral 6 denotes a binding band, which can easily be bound in various ways, such as the number of the cable sheaths 7 and the thick and thin lines, and can be appropriately compressed simply by passing the tip through the hook at the other end and tightening. Reference numeral 7 denotes a cable sheath, which is an insulating coating on the outside of the double-coated cable wire. Numeral 8 denotes a wire end, which is a tip portion of a bare wire stripped to cover the connection terminal 9 for connection. Numeral 10 denotes a projection, which is long formed on each of the combination edges 3 of the divided boxes 1-A and 1-B, and inserted into the retaining groove 11 to prevent the opening of the retaining hole to form an integral box. When disassembling, it can be pulled out by pulling it slightly from one end. Reference numeral 12 denotes a connecting bent portion, which is formed by connecting and combining the divided edge portions 3 of the central portion of the two without dividing and separately forming the divided boxes 1-A and 1-B. The thickness is reduced. 13
Is a box body, which is used mainly in the case of a two-end type having two ends. A soft portion 21 or a fold portion 2 is provided at both ends, and is passed through one of the wire terminals 8 before joining, and is connected. Thereafter, the connection portion is positioned at the center of the storage space 4 and the fold 2 or the soft portion 21 is compressed or bound by a binding member such as the binding band 6. Reference numeral 14 denotes an entrance through which electric wires and cables are passed. Reference numeral 15 denotes a cap body, which protects the process before use so that foreign matter enters through the inlet 14 before use and remains after the connection and does not hinder the conductivity. Not only for both-end products,
If used at the entrance 14 of a box of various shapes, safety before use can be maintained. Reference numeral 16-A denotes a fold cap, which is a single cap forming the fold portion 2 and inserted and fixed to an end of the box body 13. 16-B is a cap with a bottom, 16-A
In the same manner as described above, it is inserted into the end of the box body 13 and fixed, and when the connection portion is inserted only from one of the inlets 14 because the tip forms a bottom, the bottom is closed and the unit is closed and bound. To save the trouble and to insert the electric wire from both sides, an appropriate portion of the bottom can be cut off and used. 16-C is a soft part with a bottom, the thickness of which is much thinner than the storage space 4, soft and easily compressible,
The tip has a bottom, and when the foreskin of the cable sheath 7 is not necessary, it is used in a closed state. If used, the cable sheath 7 is cut to a suitable size by cutting off a position suitable for the size and number of the cables. Open. Reference numeral 17 denotes a hook which enters into a hook groove 18 formed on the outer periphery of the end of the box body 13 and stops. Reference numeral 19 denotes an adhesive welding portion, which is a portion for fixing the surface inserted into the box body 13 by bonding or welding. Reference numeral 20 denotes a gap, and when the fold portion 2 or the soft portion 21 is compressed, a plurality of gaps 22 are formed between the wrapping and the foreskin by folding on the cable sheath 7, and hot air is sequentially radiated from this, thereby preventing an obstacle of high temperature due to a sealed state. To prevent. Reference numeral 21 denotes a soft portion, which is a soft compression portion provided at a certain depth from the entrance 14 of the box main body 13 and has a smaller thickness than the box main body 13 and is easily compressed. The plurality of gaps 20 formed between the foreskins and the gaps between the foreskins sequentially radiate the hot air accumulated in the storage space 4. Reference numeral 23 denotes a binding hole. Two holes common to the front and back of the soft portion 21 are arranged side by side in a horizontal line, and the cable sheath 7 is sandwiched between the binding members 6 and the like. If necessary, it can be bundled and fixed together with the building materials.

The fold bottom cap 16-B is located outside the fold 2
The soft portion 21 may be molded, and the bottomed soft portion 16-C can mold the fold portion 2 outside the soft portion 21. Both are molded in a state where the inlet 14 is closed, 7 only when the cable is passed through
Can be wrapped or tied.

The AA cross section of the box is not limited to a circle, but may be formed into any shape such as a square, a semicircle, and an ellipse.
The effect of the present invention is obtained without any change.

[0010]

According to the present invention, the thickness of the entire body of the box surrounding the storage space 4 used for insulating the joint part of the trunk line is made thick enough to withstand external shocks, and the resin mucus is injected. And each soft part 2
The simple operation of compressing or bundling the folds 1 or the folds 2 with a tying band or the like is completed, and the labor-saving and re-use thereof are excellent in economical effects.

Once the connection and the compression and tying members are released after connection, the connection can be easily repaired, added and removed, and the box can be reused.

In particular, the entire storage space 4 is mainly transparent, and the connection state can be visually inspected from the outside, so that it is unnecessary to disassemble at the time of inspection.

If the box is divided and combined, it is possible to form various shapes according to the shape of the branch connection, and it is safe without forcibly pushing the connection portion into the box by bending it.

If any of the inlets 14 is unnecessary for the connection work, the folds 2 or the soft parts 21 are completely compressed and bound to form a closed bottom, or the folds 2 or 16-C are closed. If a product configured in a shape is used, only the portion where compression foreskin is passed through the cable sheath 7 is cut off and the mouth is opened.
If unnecessary parts are left as they are, it is possible to prevent the invasion of foreign substances and it is safe.

The hot air that accumulates in the accommodating space 4 is compressed by the binding band 6 through the wrinkles 22 formed by the compression of the soft portion 21 and the folds formed by the compression of the folds 2 or by the binding band 6 through the binding holes 23. Air circulates through the gaps 20 formed on both sides by binding the exterior 7, preventing hot air from accumulating in the storage space 4 and preventing the joint from becoming hot.

[Brief description of the drawings]

FIG. 1 is a front view showing a use state.

FIG. 2 is an enlarged partial bottom view showing the shape of a fold 2 from an entrance 14;

FIG. 3 is an enlarged bottom view from an arrow C showing a binding state of the cable sheath 7 and a gap 20;

FIG. 4 is a front view of the separated division box 1-B.

FIG. 5 is an enlarged sectional view taken along the line BB showing a state in which the division box 1-A and the division box 1-B are combined.

FIG. 6 is an enlarged cross-sectional end view of the storage space 4, which is connected with the connecting bent portion 12 of the combination edge portion 3 of the division boxes 1-A and 1-B and can be freely opened and closed.

FIG. 7 is a front view in which a cap body 15 is placed over a double-sided entrance 14 in which folds 2 are molded on both sides of a box body 13.

FIG. 8 shows a fold cap 16-A on the end of the box body 13.
Sectional drawing which shows the state which combined and made the cap 16-B with a bottom, and made the electric wire connection part foreskin fixed to this.

FIG. 9 is a front view in which a bottomed soft portion 16-C is molded at one end of the division boxes 1-A and 1-B, and an entrance 14 is provided at the other end.

FIG. 10 is a front view showing a state in which a straight joint portion is accommodated in the box body 13, soft portions 21 are provided at both ends, and one end of the soft portion 21 is compressed foreskin with a binding band.

FIG. 11 is a partial front view showing a state in which binding holes 23, 23 common to the front and back sides are provided side by side in a soft portion 21 of the box body 13.

[Explanation of symbols]

 Arrow B Transparent joint box Arrow C Bottom indicating binding state 1-A division box 1-B division box 2 folds 3 Combination edge 4 Storage space 5 Stop hole 6 Binding band 7 Cable armor 8 Wire terminal 9 Connection terminal 10 Projection 11 Stop groove 12 Connection bending part 13 Box body 14 Inlet 15 Cap body 16-A Fold cap 16-B Fold bottom cap 16-C Bottom soft part 17 Hook part 18 Hook groove 19 Adhesive welded part 20 Gap 21 Soft part 22 Wrinkles 23 binding holes

Claims (3)

[Claims] In a box that insulates a joint part of a main line and a branch line in an electric wiring work, a soft part or a fold part is provided between a part around a plurality of entrances and a certain depth, and is separated and molded. Combine this and form an integral box, or connect and separate the intermediate parts and form an integral box so as to open and close, or integrally mold the box body and the entire fold or soft part, or Combine the cap body which molded the folds individually with the end of each box except the soft part or the folds to form an integrated box, and after storing the wire joint part in these boxes,
A transparent joint box, wherein the outer periphery of the soft portion or the fold portion is compressed foreskin and prevented from falling off, or a binding member is passed through a binding hole provided in the soft portion and bound together to prevent the transparent joint box from falling off. 2. The method according to claim 1, wherein a bottom portion is provided at a tip of the soft portion or the fold portion to close the tip, and when an electric wire is passed, an arbitrary position of the tip is cut off and the mouth is opened. A transparent joint box characterized by being used closed when not needed. 3. The storage space according to claim 1 or 2, wherein air flows through a plurality of wrinkles or folded folds or gaps formed between the bound sides when the cable sheath is compressed and wrapped and bound. A transparent joint box characterized in that the hot air that accumulates gradually emanates.