JP2002010441A - Pass through method for cable having terminal in net tube, and pass through tool kit therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate passing through of cable with terminal into a net tube. SOLUTION: Inside the pipe of tool kit after first traversing net tube, which is enlarged in diameter, when it is shrunk, net tube is held along with internal surface of the said pipe after depressing the net tube, then cables connected with terminals at the top end are passed through the tube and after the passing through the net tube with cables having terminals of a designated number into the net tube. The net tube is taken out of the pipe to make the original conditions of restoration for turning into small-size and long-dimension, upon releasing depression of the net tube.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for penetrating a terminal of an electric wire with a terminal having one end connected to a terminal into a net tube, and a jig used for the penetrating operation.

[0002]

2. Description of the Related Art Recently, a resin net tube has been used as an exterior material of an electric wire routed to an automobile. Since this mesh tube has flexibility, it is easy to bend the electric wire into a required shape and route it, and it is wound around the electric wire group to bind and protect the conventional electric wire group. Since it has higher strength and rigidity than the resin tape made of vinyl chloride, it does not cause damage even if it interferes with an external member, and has an excellent appearance.

The mesh tube is formed by knitting an insulating resin yarn such as nylon, polyester, PET or the like into a cylindrical shape and has no elongation. When released, it has the characteristic of returning to its original small diameter and long state.

When a terminal-equipped electric wire having a terminal at one end is directly inserted into the above-mentioned net tube from the terminal side, the terminal is caught by the net tube. In particular, when the length of the net tube is long, it becomes difficult to penetrate the terminal. For this reason, Japanese Utility Model Laid-Open No. 6-57019 proposes a terminal penetrating jig J as shown in FIG.

The terminal penetrating jig J accommodates the terminal 5 in a leading guide J1 having a terminal accommodating portion.
A semi-cylindrical wire tray portion J2 continuously formed in 1;
An electric wire 4 is placed along the extending bar J3 extending therefrom, the electric wire penetrating jig gripping the electric wire 4 and the passing bar J3 and sequentially passing the electric wire 4 from the leading guide portion J1 into the mesh tube 3. By using J, the penetrating work of the electric wire with terminal is performed.

[0006]

However, according to the wire penetrating jig, the leading guide J1 must be inserted into one end of the net tube 3 and then passed through the net tube 3 little by little. There was a problem that workability was poor. In particular, this problem becomes more remarkable as the length of the mesh tube becomes longer. Also, there is a problem that it is not easy to remove the jig by leaving the electric wire after the terminal is penetrated by the electric wire penetrating jig.

The present invention has been made in view of the above problems, and has as its object to make it possible to easily penetrate a terminal of an electric wire with a terminal into a net tube.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a method in which a mesh tube whose diameter changes when it is shrunk is penetrated into a pipe of a jig. And hold it in a state along the inner peripheral surface of the pipe, then pass the terminal-attached wire with the terminal connected to the tip through the mesh tube from the terminal side, and pass the required number of terminal-attached wires to the mesh tube. After passing through, the net tube is taken out of the pipe, the shrinkage of the net tube is released, the diameter is reduced and the length is returned to a natural length, and the wire with the terminal is passed through the net tube. It provides a method for penetrating attached wires.

After passing the net tube through the pipe as described above, when the net tube is contracted and the diameter is changed, the net tube is held in a large diameter state and a short state along the inner peripheral surface of the pipe. Is done. Therefore, when the electric wire with the terminal is inserted into the net tube in this state, the terminal does not get caught on the net tube, and only needs to pass through a short distance, and the work of penetrating the electric wire with the terminal into the net tube can be easily performed. It can be carried out.

The jig used for the method of penetrating the electric wire with the terminal into the net tube has an inner diameter substantially the same as the maximum diameter of the net tube when the net tube is in the maximum contracted state, and has a length equal to that of the net tube. However, it can be constituted by only one pipe having a dimension slightly shorter than the shortest length of the mesh tube. In that case, the operator can hold and use the mesh tube at both ends of the pipe. However, when the pipe becomes long, an operator who holds both ends of the mesh tube and an operator who passes the electric wire with the terminal are required.

Therefore, the present invention also provides a jig for penetrating an electric wire with a terminal into a net tube that can be penetrated by one worker when the net tube becomes long.

The jig divides a pipe having an inner diameter substantially the same as the outer diameter when the maximum diameter of the mesh tube changes, into a pair of left and right members, and cuts out one inner peripheral surface of one of the divided pipes. The other outer peripheral surface is cut out and slidably fitted to make the entire length of the pipe extendable, and at both ends of the pipe, peripheral grooves for accommodating and holding both ends of the mesh tube are provided on the opposite surface and the other end surface is provided. The left and right terminal receiving cylinders are provided with closed ends. , And is moved in the separating direction after the penetration to return the mesh tube to its natural length.

When the above jig is used, both ends of the net tube can be housed in the right and left terminal receiving cylinders for positioning and holding, and the net tube between the right and left terminal receiving cylinders is located at a natural length in the left and right split pipes. In this state, when the left and right terminal receiving cylinders are pushed in the approaching direction, the diameter of the net tube changes, and the divided pipes between them slide and overlap with each other due to the proximity operation of the left and right terminal receiving cylinders, and contract. When the net tube has the maximum diameter, it comes into contact with the inner peripheral surface of the pipe, and can be held in the maximum diameter state without sagging inside. Since the net tube is held at the maximum diameter and the shortest dimension in this manner, the work of penetrating the electric wire with the terminal into the net tube can be easily performed.

The divided pipe has a slit provided along the axial direction and a thin hinge portion at a position facing the slit, and the slit is opened by inserting and removing the mesh tube from the pipe. It is preferable to adopt a configuration in which this is performed.

With the above construction, it is not necessary to penetrate the net tube through the pipe, and it is sufficient that both ends of the net tube are accommodated in the left and right end receiving cylinders, and then inserted into the left and right divided pipes through the slits from the side. Further, after the terminal-equipped electric wire is passed through the mesh tube, the slit can be opened to remove the divided pipe from the side.

Instead of providing the slit and the thin hinge, the pair of left and right divided pipes may be divided into upper and lower semi-annular portions, and may be detachably engaged with each other.

The jig divides a pipe having an inner diameter substantially the same as the outer diameter when the maximum diameter of the mesh tube changes, into a pair of left and right members, and cuts off one inner peripheral surface of one of the divided pipes. The other outer peripheral surface is cut out and slidably fitted to make the entire length of the pipe extendable, and at both ends of the pipe, peripheral grooves for accommodating and holding both ends of the mesh tube are provided on the opposite surface and the other end surface is provided. The left and right terminal receiving cylinders are provided with closed ends. , And is moved in the separating direction after the penetration to return the net tube to its original state.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment. As a jig 10 to be used, a hollow cylindrical pipe 1 made of a light and not easily bent material such as a steel pipe or a vinyl chloride pipe.
1 is used. As described above, the inner diameter is substantially the same as or slightly smaller than the maximum outer diameter when the mesh tube 3 is in the maximum contracted state.

As a result, the inner peripheral surface of the pipe 11 comes into contact with or presses against the outer peripheral surface of the net tube 3 in the maximum contracted state, so that the pipe 11 can hold the net tube 3 in the maximum contracted state. it can.

The length of the pipe 11 is slightly shorter than the shortest length of the mesh tube 3 in the maximum contracted state.
Both ends of the mesh tube 3 are set so that they can protrude from both ends of the pipe 11. By making the net tube 3 protrude from both ends of the pipe 11, the net tube 3 can be fixed to both ends of the pipe 11,
In addition, after the wire with terminal is penetrated, one end of the net tube 3 can be gripped and pulled out from the pipe 11.

When using the holding jig 10, first, the mesh tube 3 shown in FIG. 1A is passed through a pipe 11 in a natural length state as shown in FIG. 1B. afterwards,
As shown in FIG. 1 (C), the operator presses both ends of the mesh tube 3 in the contracting direction, that is, the approaching direction, and the mesh tube 3 is pressed.
To the maximum contraction state. Thus, the net tube 3 can be held at the maximum diameter and the shortest length by the pipe 11. In this state, the electric wires 4 are sequentially inserted from one side of the mesh tube 3 with the terminal 5 of the electric wire 4 with a terminal at the top, and penetrated therethrough. In addition, although one electric wire 4 is shown in the figure,
Several wires penetrate.

After passing the required number of wires, FIG.
As shown in (D), release the pressing of both ends of the mesh tube 3,
The net tube 3 is returned to its natural length, and the net tube 3 is extended from both ends of the pipe 11. One end of the net tube 3 is pulled outward, and the net tube 3 that has penetrated the electric wire with terminal from the pipe 11 is pulled out.

At the time of the above penetrating operation, an operator may insert the electric wire with terminal 4 while fixing both ends of the net tube to both ends of the pipe 11, but when the net tube 3 is long and the pipe 11 is long. Can not perform the penetrating work by one worker.

Therefore, when one pipe is used,
It is preferable to adopt the configuration of the modification shown in FIGS. 2A, 2B, and 2C. In this modification, the pipe 11 ′ is divided vertically into upper and lower pipes 11 a ′ and 11 b ′,
The mesh tube 3 is covered from above and below and locked together. In addition, the contact plate 30 is fixed to the front part of the pipe arrangement part P, and the pressing plate 31 is movably arranged at the rear part. The contact plate 30 has a hole 30a which is smaller than the outer diameter of the mesh tube but is small enough to allow the terminal of the electric wire to be inserted therethrough, while the pressing plate 31 has a hole for penetrating the mesh tube. 31a is provided.

As shown in FIG. 2A, the mesh tube 3 is usually provided with clamps 34 for fixing the vehicle body near both ends thereof.
A clamp 35 is attached, and the clamps 34 and 35 are used.

The upper and lower pipes 11a 'and 11b' are placed at positions between the clamps 34 and 35 of the mesh tube 3 so that the mesh tube 3 is passed through the pipe at a natural length. The mesh tube 3 is disposed between the pressing plates 31.
Is pressed against the contact plate 30. The pressing plate 31 is moved from the rear to the contact plate 30 side to contact the clamp 35 on the rear end side. Further, by moving the pressing plate 31 and pressing the clamp 35 forward, the mesh tube 3
And the diameter of the mesh tube 3 is increased in the pipe 11.
When the clamp 35 contacts the rear end of the pipe 11 ′, the pipe 11 ′ is also moved to the contact plate 30 side, and when the front end of the pipe 11 ′ contacts the clamp 34 contacting the contact plate 30, the pressing plate 31 Stop. In this state, the mesh tube 3
Is held at the maximum diameter in the pipe 11 ′
Go through. After passing the required number of electric wires, the pressing plate 31 is retracted, and the pipe 1 is moved from between the contact plate 30 and the pressing plate 31.
It is possible to take out the mesh tube 3 through which the electric wire with terminal has penetrated 1 ′. In this state, the net tube 3 is reduced in size and length to return to a natural state, and the upper and lower pipes of the pipe 11 ′ are separated and removed from the net tube 3.

FIGS. 3A to 3D and FIGS.
(E) shows the second embodiment. The jig 6 used in the second embodiment has an inner diameter substantially the same as the outer diameter when the maximum diameter of the mesh tube 3 is changed, and a pipe slightly shorter than the shortest length is formed into a pair of left and right two members. Split pipe 1
2 and 13 and a pair of left and right terminal receiving cylinders 7 and 8. The split pipes 12 and 13 are detachably connected to the left terminal receiving cylinder 7 and the split pipe 12, and the split pipes 13 are detachably connected to the right terminal receiving cylinder 8. Have been placed.

The split pipes 12 and 13 are slidably fitted to each other so that the entire length of the pipe can be expanded and contracted.
That is, the divided pipe 12 has a slide portion 1 whose inner peripheral surface is cut off from the divided end 12a by a required dimension to increase the inner diameter.
On the other hand, the split pipe 13 is provided with a slide portion 13b whose outer diameter is reduced by cutting out the outer peripheral surface of the split pipe 13 by a required size from the split end 13a. Left and right split pipes 12
And 13 are provided with the slide portions 12b and 13b, so that when the divided pipes 12 and 13 are fitted to each other to form a single pipe, the inner and outer peripheral surfaces have a uniform diameter with no step over the entire length. I am trying to be.

The left and right split pipes 12 and 13 are provided with slits 12c and 13c over their entire length in the axial direction and thin hinge portions 12d and 13d at opposing portions, and open the slits 12c and 13c to insert the mesh tube 3 inside. To be able to pass through.

Furthermore, fitting projections 12f, 13f for fitting to the terminal receiving cylinder are provided at outer ends 12e, 13e opposite to the divided ends of the divided pipes 12, 13.

The left and right terminal receiving cylinders 7 and 8 are provided with peripheral grooves 7a for holding and holding both ends of the mesh tube 3 in a state where the both ends have the maximum diameter.
8a is provided on the opposing surface and the other end surfaces are closed surfaces 7b, 8b.
It has an annular shape. Further, the outer cylinders 7c, 8 on the opposing surfaces
c are provided with recesses 7d and 8d for fitting the projections 12f and 13f of the left and right split pipes.

In this embodiment, the mesh tube 3 has a length of 1
m, an inner diameter of 4 mm at the natural length before shrinking, and an inner diameter of 8 mm at the maximum shrinking state.

FIGS. 4A to 4E show a process of penetrating a wire tube with a terminal using a jig 6 according to the second embodiment. First, as shown in FIG. The net tubes 3 are housed and fixed in the circumferential grooves 7a, 8a of the receiving tubes 7, 8 with both ends of the net tube 3 having the maximum diameter.

Next, the slit 13c of the divided pipe 13
Is opened and put on the net tube 3, and the fitting projection 13 f is inserted into the recess 8 d of the right terminal receiving tube 8 and connected. Similarly,
Open the slit 12c of the split pipe 12 and open the mesh tube 3
Then, the fitting protrusion 12f is inserted into the concave portion 7d of the left terminal receiving cylinder 7 and connected to the state shown in FIG. 4B. At this time, the leading ends of the slide portions 12b and 13b of the left and right split pipes 12 and 13 are in contact with each other, and the net length of the pipe is maximized in a state in which the net tube 3 is passed through at its natural length.

After passing the mesh tube 3 through the split pipes 12 and 13, both ends thereof are connected to the left and right terminal receiving cylinders 7 and 8, respectively.
4A and 4B may be reversed.

Next, the left and right terminal receiving cylinders 7 and 8 are pushed toward each other to slide the sliding portions 12b and 13b of the divided pipes 12 and 13 in the fitting direction. As shown in C), it is completely fitted and contracted to the shortest length L2 where the tip abuts the step.

In this operation, the mesh tube 3 whose both ends are held by the terminal receiving cylinders 7 and 8 contracts and expands in diameter,
At the position where b and 13b are stopped, it is in the maximum contracted state, and the net tube 3 has the maximum diameter and the shortest length. While holding in this state, the wire tube 4 is sequentially inserted with the wire 4 from the right end receiving cylinder 7 on one side, with the terminal 5 of the wire 4 with a terminal at the top, and passed through the wire tube 3. Through the left terminal receiving cylinder 8.

After all the required number of electric wires 4 with terminals have been penetrated, the pipes 12 and 13 and the terminal receiving tubes 7 and 8 are removed in the reverse order to the above. That is, the left and right terminal receiving cylinders 7 and 8 are separated from each other, the pipes 12 and 13 are also disengaged, and return to the state of FIG. Thereafter, the pipes 12 and 13 are removed from the mesh tube 3 by opening the slits 12c and 13c, and the pipes 12 and 13 are disengaged from the terminal receiving cylinders 7 and 8 to be removed, thereby obtaining the state shown in FIG. Then, the terminal receiving cylinder 7,
8 is pulled out, and both ends of the mesh tube 3 are removed from the circumferential grooves 7a and 8a.

FIG. 5 shows a modification of the jig of the second embodiment. Instead of providing slits and hinges, the divided pipes 12 and 13 are divided into upper and lower parts to form semi-annular upper and lower pipes 12 ′, 12 ″, 13 ′ and 13 ″, and are locked to each other. Locking part 12'm and non-locking parts 12 "n, 13'm, 13" n are provided. The operation of attaching to the net tube is the same as that of the second embodiment, and the description is omitted.

[0040]

As is apparent from the above description, according to the penetration method of the present invention, after passing a natural-length net tube through a pipe, the net tube is contracted and expanded to reach a substantially maximum diameter. The expanded diameter state is maintained by contacting the inner surface of the pipe. In this state, when the electric wire with the terminal is penetrated into the net tube, the net tube is held at the maximum diameter, so that it can be easily penetrated, and the penetrating distance is short because the net tube has the shortest length. Thus, the electric wire with terminal can be more easily penetrated into the net tube.

When a jig provided with a pair of left and right split pipes and left and right terminal receiving cylinders is used as a jig, the left and right split pipes are brought close to each other while both ends of the net tube are housed and held in the left and right terminal receiving cylinders. By doing so, the net tube can be held along the inner peripheral surface of the pipe while contracting and increasing the diameter, and the terminal-equipped electric wire can be easily penetrated from the terminal side. As a result, the work of penetrating the electric wire with the terminal into the long net tube can be performed in a short time by one worker, and the cost can be reduced.

[Brief description of the drawings]

FIGS. 1A to 1D are perspective views showing an insertion operation process according to a first embodiment of the present invention.

FIGS. 2A to 2D are schematic diagrams illustrating insertion steps of a modification of the first embodiment.

3A and 3B show a jig used in a second embodiment of the present invention, wherein FIG. 3A is a perspective view, FIG. 3B is a cross-sectional view, FIG. 3C is a perspective view of a terminal receiving cylinder, and FIG. It is sectional drawing.

FIGS. 4A to 4E are cross-sectional views illustrating insertion steps of a second embodiment.

FIG. 5 is a sectional view showing a modification of the jig of the second embodiment.

FIG. 6 is a drawing showing a conventional example.

[Explanation of symbols]

 3 Braided tube 4 Electric wire 5 Terminal 7, 8 Terminal receiving cylinder 14a, 15a Peripheral groove 10, 6 Jig 11 Pipe 12, 13 Split pipe

Claims (5)

[Claims] 1. A net tube whose diameter becomes large when contracted is penetrated into a pipe of a jig, and in this state, the net tube is contracted to have a large diameter and is held in a state of being along the inner peripheral surface of the pipe. Then, a wire with a terminal having a terminal connected to the end is passed through the mesh tube from the terminal side, and after passing a required number of wires with a terminal through the mesh tube, the mesh tube is taken out from the pipe and the mesh tube is shrunk. And returning the wire with terminal to the net tube in which the wire with terminal is passed through the net tube. 2. A jig for use in the method for penetrating an electric wire with a terminal into a net tube according to claim 1, wherein the jig has a diameter substantially equal to a maximum diameter of the net tube when the net tube is in a maximum contracted state. A penetrating jig comprising a pipe having an inner diameter and having a length slightly smaller than the shortest length of the mesh tube. 3. A jig used in the method for penetrating an electric wire with a terminal into a net tube according to claim 1, wherein the pipe has an inner diameter substantially the same as the outer diameter of the net tube when the maximum diameter changes. The pipe is divided into a pair of left and right members, and one of the divided pipes has an inner peripheral surface cut out and the other outer peripheral surface is cut out so as to be slidably fitted to make the entire length of the pipe expandable and contractable. A circumferential groove for accommodating and holding both ends of the net tube is provided on the opposite surface, and annular left and right terminal receiving cylinders having the other end surface closed are provided, and the left and right terminal receiving tubes accommodate both ends of the net tube. To the mesh tube which is moved in the direction of approach to each other to make the length of the left and right split pipes as short as possible, penetrate the wire with terminals, and after the penetration, move in the separating direction to return the mesh tube to its natural length. With terminal Jig for wire penetration. 4. The pair of left and right divided pipes each have a slit provided along the axial direction, and a thin hinge portion is provided at a position facing the slit, so that a mesh tube is inserted into the pipe. The jig for penetrating a wire with a terminal into a net tube according to claim 3, wherein the jig is opened by opening the slit. 5. The electric wire with terminal according to claim 3, wherein said pair of left and right divided pipes are divided into upper and lower semi-annular portions, respectively, and are detachably engaged with each other. Jig.