JP3303117B2 - Joint box for electric wiring - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION In the present invention, the setting position of a connection bundle can be provided at an unspecified place in the air by separating a transfer tool for fixing to a box and a fixing object in a building. That is,
Thus, the present invention relates to a joint box for electric wiring in which a connection bundle can be set at a position suitable for each wiring place and at which work can be easily performed, and the box can be easily attached.

[0002]

2. Description of the Related Art A fixed base is fixed to a fixed object of a building, and a box is fixed to the fixed base. Therefore, the outer coating is peeled off from just above the coated electric wire fixed to the fixed object, and a long single-coated electric wire. The ends are connected by a sleeve or the like to form a connection bundle, and the large connection bundle has to be uniformly formed immediately above the fixed base.

[0003] It takes time to make a bundle of wires directly above the fixed base and to mount the fixed base on the mounting object. Especially in a narrow, low and dark place, it is difficult to use a screwdriver or a hammer to stop the fixed base. Or, in some cases, it was impossible to attach the cable, and in some cases, power was transmitted with the connection bundle exposed without covering the box.

[0004]

In order to maintain the safety of electrical wiring, it is essential to securely cover the connection bundle. Also, when making a connection bundle, it is an essential condition to take care not to damage the electric wire, the sleeve, and the like. However, today it is in a severe environment, such as labor shortage, technical inexperience, and speed work is required, especially in conjunction with the revision that power is transmitted without any inspection after completion of electrical wiring work. However, since it takes time to complete the wiring work to fix the wiring bundle in a certain position, the working environment is bad such as behind the ceiling, and in places where it is not visible, the use of boxes is omitted, and the actual situation is that the wiring bundle is transmitted bare and left unattended. It is pointed out. In order to solve such a human defect, there has been a demand for the development of an easy-to-use box that can be used in a comfortable manner even under adverse conditions in the work of forming a wire bundle and insulating cover.

[0005] In order to solve the above-mentioned problems of the prior art, the invention of the present application makes it possible to set an unspecified position by separating a fastening object and a connection bundle. The fixing position of the connection bundle can be set by selecting a location that is most suitable for the wiring location and is easy to work. Furthermore, after inserting the transfer tool into the space formed under the connection bundle, the box is put on after the box is covered, and at the same time, the lower part of the box is fastened to the transfer tool, so that the connection tool is blocked by the connection bundle and the box is prevented from coming off. As a result, the position of the connection bundle may be unspecified as described above, and can be set to a position most suitable for the wiring location, so that it can be used without any resistance even in a place where working conditions are poor, so that the insulating cover can be securely used The purpose is to improve the safety of the branch wiring.

[0006]

Means for Solving the Problems The present invention is characterized in that:
A space is provided for freely inserting and exiting a wire bundle formed by bundling the ends of a plurality of electric wires fixedly fixed to the fastening object in a free space separated from the surface of the fastening object, and on one surface. Is a joint box for electric wiring having an opening for inserting the connection bundle into the internal space, wherein a stopper for detachably engaging a transfer tool is provided at an opening edge of the opening of the box. While providing the attachment portion, the above-mentioned electric wires fixedly fixed to the above-mentioned fixed object, and the space between the electric wires between the connection bundles in the above-mentioned free space, are freely inserted and removed from the side. ,And,
An opening edge of a box opening portion of the box in a state in which the box is placed in a space apart from the surface of the fastening object and can be sandwiched and positioned between electric wires, and is covered with a connection bundle. The transfer tool inserted into the space between the electric wires in a free space separated from the surface of the object to be fixed is fitted to the fixing part of the part so that the box does not come off the connection bundle. It is a combination.

[0007]

The function of the present invention is to lengthen an electric wire fixed to an object to be fixed so that a small bundle of electric wires can be formed at an arbitrary position in the air away from the position at which the electric wire is fixed, and to pass the space between the bundles of electric wires. After the tool is inserted, the opening of the box is covered with the wire bundle, and the stoppers are inserted into both ends of the transfer tool and stopped.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings showing an embodiment of the present invention, an arrow A is a connection bundle, and the outer sheath of the insulated wire 2 is stripped off, the single-strand wire 4 is connected, and the sleeve 5 or the connector is branched and connected at the end. A bundle of six. Reference numeral 1 denotes a fixing object, which is a wiring portion for fixing the insulated wire 2. Reference numeral 3 denotes a staple, which stops the covered electric wire 2 on the fixed object 1. 4
Is an electric wire, which is a single coated electric wire obtained by stripping the outer coating of the coated electric wire 2. 5 is a sleeve. 6 is a connector. 7 is a box. Reference numeral 8 denotes an opening, which is an entrance of the box 7. Reference numeral 9 denotes a stopping step for stopping the fixing portion of the transfer tool 10, which is configured by providing a projection toward the outside around the entire outer periphery of the edge of the opening end of the mouth opening 8. is there. Reference numeral 10 denotes a transfer tool, which is positioned in the space 13 formed below the connection bundle and is prevented from coming off the box 7. Reference numeral 11 denotes a guide wall, and when the box 7 is put on the connection bundle A, the protruding stopper step 9 is guided by the inclined wall and fits into the locking key portion 12 to stop. 13 is a space formed below the connection bundle A,
The delivery tool 10 is inserted into this space. Reference numerals 14 shown in FIGS. 4, 5, and 6 denote protrusions, which serve as stoppers. This is provided at two locations symmetrically around the outside (FIGS. 4 and 5) or inside the center of the mouth opening 8 of the box 7 (FIG. 6), and is guided by the guide wall 11 when the handover is attached. Key part 12
Get stuck in the hook.

In FIG. 1, a wire 10 is inserted into a space 13 formed below a connection bundle A of small bundles obtained by shortening the electric wire 4 and being bent into a single bundle.
This shows a state in which the stopping step 9 is located at the lower part of the connection bundle A and stops coming off, the long covered electric wire 2 is gathered into a spiral, the box 7 is placed on the upper part of the spirally wound electric wire 2, and the connection bundle A is integrally formed. In A, since the electric wire 4 is short and the covered electric wire 2 is long, the connection work to the sleeve 5 or the like is easy and there is no need to form a spiral bundle. The electric wire 4 is simply bent at one position before the sleeve 5 or the like, which is inevitable. Since the connection bundle A is a small bundle, there is no need to forcibly push or twist the box 7 so that no shock is applied when the connection bundle is made, the branch connection point and the electric wire 4 are not damaged, and the insulation is reliable. , Indicating a state in which electrical safety is maintained.

FIG. 2 shows a state in which the stoppers 9 provided on the mouth opening 8 of the box 7 are fitted into the key portions 12 at both ends of the delivery tool 10 and stopped.

FIG. 3 shows a state in which a stop step 9 is provided on the entire outer periphery of the mouth opening 8 of the box 7.

In FIG. 4, projections 14 serving as fixing portions provided at two locations symmetrically with respect to the center of the outside of the mouth opening 8 of the box 7 are guided by the guide walls 11 at both ends of the transfer tool 10 to lock the key. 5 shows a state in which it is fitted and fixed to the portion 12.

FIG. 5 shows two projections 14 provided symmetrically at the outer center of the box 7.

In FIG. 6, a projection 14 having a function as a stop provided symmetrically at the center of the inside of the mouth opening 8 of the box 7 is guided by the guide walls 11 at both ends of the transfer tool 10 and the key portion. FIG.

The method of fixing the transfer tool 10 to the box 7 is not limited to the method of fixing the structure as shown in FIGS. 2, 4 and 6, and it is sufficient to use an arbitrary device to fix them. The transfer tool 10 is located at the lower part of the connection bundle A, and its fixing portion is fixed to the fixing portion of the box 7,
It is possible to insulate and cover the wire bundle A set at an arbitrary position in a state where the wire bundle A is separated from the fastening object 1.

When the covered electric wire 2 below the connection bundle A is lengthened, not only a spiral bundle as shown in FIG. 1 but also a wiring position such as a method of folding vertically or horizontally, a method of standing upright, etc. A safe place can be selected. Since this portion has a double coating, there is no problem at all, and the wire 4 having the single coating can be shortened by the length thereof, so that the connection work is easy and the connection bundle A is not damaged.

In order to cover the connection bundle A with a box, it is preferable to insert the transfer tool 10 into the lower space 13 of the connection bundle A. Furthermore, after the box 7 is put on the connection bundle A, the delivery tool 10 can be inserted and stopped in the space 13, and can be properly used for work convenience.

In the box 7, the position of the connection bundle A does not have to be specified because the fixing stand is unnecessary. Therefore, even if the electric wire 4 is shortened by extending the covered electric wire 2 corresponding to the connection place, the connection operation can be performed. Not only can it be easily formed, but if a small connection bundle A is formed by bending only one or two places, a small connection bundle A can be formed without giving a strong impact to the electric wire 4, the sleeve 5, and the like. There is no need to press down the sleeve or the like to screw down, so that the safety of the connection is maintained.

As a matter of course, this box 7 can be used without any problem even in the case where the spirally wound wire bundle in which the covered wire 2 is shortened and the wire 4 is lengthened is set at a fixed position immediately above the fastening object 1 as in the prior art. You can do it.

The stopper 9 may be provided on the inner periphery of the opening 8 of the box 7, and in this case, the transfer tool 10 may be shortened accordingly. Since it surrounds the outer circumference or the entire inner circumference, there is no need to worry about holding it in a certain direction so as to follow the guide wall 11.
If pressed against both ends of the key part 0, the key part 1 is guided by the guide wall 11.
I stuck in 2 and stopped.

When the box 7 which has been once put on the connection bundle A is to be removed, the retaining step 9 or the projection 14 comes off from the key portion 12 by pulling while holding down the box 7 which is slightly above the both ends of the delivery tool 10. Box 7 and delivery tool 1
0 can be extracted from the connection bundle A and reused.

[0022]

According to the configuration of the present application as described above, the first
As a point, the passing tool 10 can be inserted into the space 13 between the electric wires of the connection bundle A in a free space far away from the fixed object 1 such as a building, and can be left.
This has the effect of improving the workability of enabling the connection bundle A to be connected in a place with good workability in a free space far away from the fixed object 1 such as a building. As a second point, the connecting tool 10 is inserted into an arbitrary position in the space 13 between the electric wires of the connection bundle A at an upper position separated from the surface of the fastening object 1 without being fixed to the fixed object 1 such as a building. And the wire bundle A is integrated therewith at an arbitrary spatial position separated from the surface of the fastening object, so that the connection bundle A is directed upward from the fastening object 1 to, for example, the state shown in FIG. Even if you are far apart, the connection bundle
(A), the joint box 7 is placed in an appropriate state from above, and the joint box 7 is fixedly supported in a fixed positional relationship by the connection bundle (A) and the transfer tool 10. There is. According to the configuration of the present application having such features, the wires of the connection bundle A in the free space can be groped in a narrow, low, dark place such as a house without being bothered by the shape of the connection bundle A. There is also an operational effect that the transfer tool 10 is inserted into the space between them, and the box 7 is mounted on the transfer tool 10 to form an insulating cover on the connection bundle A. Further, in this case, there is an effect that the trouble such as fixing the delivery tool 10 to the building is unnecessary. Furthermore, the position of the connection bundle A may be an unspecified place that is far away from the fixed object 1 of the building, and the connection work becomes easy.

[Brief description of the drawings]

FIG. 1 is a partial vertical cross-sectional view showing a state in which a box 7 to which a delivery tool 10 has been passed and fixed has been placed in a space 13 below a connection bundle A.

FIG. 2 is a sectional view of the box 7 in which a retaining step 9 is fitted in the female portion 12;

FIG. 3 is a front view of the box 7 in which a stopper 9 is provided on the entire outer periphery.

FIG. 4 is a longitudinal sectional view in which protrusions 14 are fitted to the transfer tool 10 and the box 7 is fixed.

FIG. 5 is a front view in which a front-back symmetrical projection 14 is provided outside the box 7;

FIG. 6 shows projections 14 symmetrically inside the box 7
FIG.

[Description of sign]

A: arrow of connection bundle, 1: stationary object, 2 ... covered electric wire, 3 ... staple, 4 ... electric wire, 5 ... sleeve,
6 ... Connector, 7 ... Box, 8 ... Open mouth, 9 ...
-Stopping step, 10 ... Handing tool, 11 ... Guide wall, 12 ...
Key part, 13 ... space, 14 ... protrusion.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H02G 3/08 H01R 4/70

Claims (1)

(57) [Claims] 1. Inside, a wire bundle formed by binding the tips of a plurality of electric wires fixedly fixed to a fastening object in a free space separated from the surface of the fastening object is freely inserted and removed. In the joint box for electric wiring, which has a space for inserting the wire bundle into the internal space on one surface, and has an opening for inserting the connection bundle into the internal space, a transfer tool is provided at an opening edge of the opening of the box. While providing a fastening portion for detachably engaging, the electric wire fixedly fixed to the object to be fixed and the space formed between the electric wires between the connection bundles in the free space. A state in which it is detachably inserted from the side, and is provided in a space separate from the surface of the above-mentioned fastening object, and is provided with a separate transfer tool that can be pinched and positioned between electric wires, and is covered with a connection bundle. The mouth opening of the box above The box is pulled out of the connection bundle by inserting the delivery tool inserted into the space between the electric wires in a free space apart from the surface of the fastening object with respect to the fastening portion at the opening edge of the box. A joint box for electric wiring, wherein the joint box is fitted so as not to be fitted.