JPH0657017U - Jig for threading tubular parts of wire harness with terminals - Google Patents

Abstract

(57) [Summary] [Purpose] To enable a wire harness with terminals to be easily and reliably passed through a hole in a tubular part such as a tube. [Structure] A lead wire 7 that can be inserted into a hole of a grommet 2 is fixed to jig bodies 5A and 5B that accommodate and fix a terminal 1a connected to the tip of a wire harness 1, and the lead wire 7 is fixed. After preliminarily inserting the jig body 5A, 5B into one of the holes of the grommet 2 or the like, the jig bodies 5A and 5B are shallowly inserted into the holes of the grommet or the like 2, and the lead wire 7 is pulled by hand from the other of the above holes. The jig bodies 5A and 5B are passed through the wire harness 1 while moving in the holes of the grommet 2 or the like.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tubular portion threading jig for a wire harness with a terminal, and more specifically, a wire harness with a terminal connected to a tip is inserted into a tubular member such as a grommet or a tube before the terminal is inserted into a housing. This is a jig for easily and securely threading through grommets or tubes when it is necessary to thread them.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 8 (A), the following method has been used as a method of preliminarily inserting a wire harness 1 having a terminal 1a connected to a tip thereof into a tube 2 or a long tube hole of a grommet with a tube. That is, the wire harness 1 and the terminal 1a are pushed by hand and passed through the hole of the tube 2. Open the hole of the tube 2 and push in the wire harness 1 by hand. Air is blown into the hole of tube 2, and the wire harness 1 is sent while passing it along with the flow of air. Wind the terminal 1a side of the wire harness 1 around the hook-shaped wire jig 3 (see FIG. 8B), and pull out the wire harness 1 by the wire jig 3 to pass it through.

[0003]

[Problems to be solved by the device]

 However, in this method, since the waist of the wire harness 1 often bends due to the resistance at the time of pushing, the longer the hole of the tube 2, the more difficult it is to pass. In this method, if the hole of the tube 2 is widened, the tube may be broken. In this method, if the tube has irregularities, the wire harness 1 is difficult to pass through. In this method, there are problems that the wire harness 1 and the terminal 1a are easily scratched or bent, and the wire harness 1 is easily detached from the jig 3 in the tube.

The present invention has been made to solve the above problems, and provides a wire harness threading jig capable of easily and reliably threading a wire harness with a terminal into a hole of a tube and a tube of a grommet with a tube. That is the purpose.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is a jig for preliminarily inserting a wire harness with a terminal connected to a tip into a tubular part such as a grommet or a tube. It should be housed and fixed, and the jig body should have a tapered tip with a smaller diameter than the tubular part, and a lead wire that is fixed to the tip of the jig body and can be inserted into the hole of the tubular part. The present invention provides a jig for passing a tubular portion of a wire harness with a terminal characterized by the above.

The jig body is provided with an accommodating portion including a slit for accommodating the wire harness through the outer peripheral surface thereof and a concave portion for accommodating the terminal, which is continuous with the slit, and the accommodating portion is required in the circumferential direction. It consists of a fixed part provided at intervals and a leading part that integrally protrudes in a conical shape from the tip of the fixed part and has a concave part continuous with each concave part on the outer peripheral surface. Is fixed. That is, the jig body has a fixed portion and a leading portion which are integrally formed.

It is preferable that the terminal accommodating recess provided in the fixing portion is formed on the outer peripheral surface of the fixing portion so as to be phased in the axial direction. The outer diameter of the fixing portion for accommodating the plurality of terminals on the outer peripheral surface can be reduced, and the tubular portion can be easily inserted to that extent.

In addition, the jig body includes a slit for accommodating the wire harness through the outer peripheral surface thereof, and a recess for accommodating the wire harness connection side end of the terminal, which is continuous with the slit. And a substantially disk-shaped fixed part in which the accommodating part is provided at a predetermined interval in the circumferential direction and a wire harness terminal attached to the fixed part so as to be continuously assembled to the fixed part. The lead wire may be fixed to the center of the fixing portion, and the lead wire may be protruded from the jig body while penetrating through the center of the lead portion. That is, the fixed portion and the leading portion are separately formed, and the leading portion is used as a cap that covers the terminal. In addition, a lead wire may be fixed to the fixing portion and the leading portion and assembled together, and a gap may be provided between the fixing portion and the leading portion in the assembled state.

[0009]

[Action]

 According to the present invention, the terminal of the wire harness is housed in and fixed to the inside of the jig body, and the lead wire is preliminarily inserted from one of the holes of the tubular portion such as a tube to the other, and then from the tapered tip. Insert the jig body shallowly into a hole such as a grommet. After that, when the lead wire is pulled by hand from the other of the above holes, the jig body moves in the hole of the grommet or the like by the lead wire, and the wire harness is passed through the hole by following this. After pulling out the jig body from the other of the above holes, take out the terminals of the wire harness from the jig body, and the wire harness threading work is completed.

[0010]

【Example】

 Hereinafter, the present invention will be described in detail with reference to illustrated embodiments. 1 and 2 show a through jig 5A of the first embodiment. The jig body 6 of the threading jig 5A is integrally configured by a cylindrical fixing portion 6a and a leading portion 6b protruding in a conical taper shape from the tip of the fixing portion 6a. ing.

On the outer peripheral surface of the fixing portion 6a of the jig body 6, for example, slits 6c, ..., 6c into which four wire harnesses 1 can be fitted sideways without any gaps at four equal positions on the circumference, for example. , And the recesses 6d, ..., 6d into which the terminals 1a of the wire harness 1 can be fitted from the leading end portion 6b side from the leading end portion 6b from the leading end portion 6b and the fixing portion 6a are formed in the respective slits 6c. And the terminal 1a is completely inserted into the terminal 1a.

A rigid lead wire 7 such as a piano wire is inserted through the axial center of the jig body 6, and one end portion 7a of the lead wire 7 is fixed to the rear end of the fixing portion 6a. At the same time, the other end 7b is extended in the direction of the tip of the jig body 6 by a predetermined length L, and the tip is rounded so that it can be easily locked when a hook or the like needs to be hooked. . The length L of the lead wire 7 is set longer than the length of the grommet 2 through which the wire harness 1 is passed.

To carry out the work of simultaneously passing four wire harnesses 1 each having a terminal connected to a hole through the tube 2 using the above-mentioned threading jig, first, each wire harness 1 is cross-hatched in FIG. It is fitted from the side into the slit 6c of the jig body 6 within the range shown by. After that, when each wire harness 1 is pulled in the rear end direction (see the arrow), each terminal 1a is completely fitted and accommodated in each recess 6d, and is locked and fixed at the bottom of each recess 6d.

Then, after inserting the other end portion 7b of the lead wire 7 from one of the holes of the tube 2 into the other, the jig body 6 is shallowly inserted into one of the holes of the tube 2 (FIG. 7A). Status).

After that, when the other end 7b of the lead wire 7 is manually pulled in the direction of the arrow from the other hole of the tube 2, the jig body 6 is moved by the lead wire 7 in the hole of the tube 2 and follows it. Then, the four wire harnesses 1 are simultaneously passed through the holes.

After the jig body 6 is pulled out from the other of the holes by the lead wire 7 and the jig body 6 is pushed out in the rear end direction, each terminal 1a is pulled out from each recess 6d in the tip end direction, Then, by pulling out each wire harness 1 from each slit 6c to the side, the threading work of the wire harness 1 is completed.

As described above, only by pulling the jig body 6 with the lead wire 7, the wire harness 1 can be easily and surely passed through the hole of the tube 2. Therefore, as long as the lead wire 7 is inserted, the wire harness 1 can be passed through regardless of the uneven shape and length of the hole of the tube 2. Further, the wire harness 1 and the terminal 1a are less likely to be scratched or bent, and there is no possibility that the wire harness 1 or the terminal 1a will come off from the jig body 6 during the threading work, and there is also no risk that the jig body 6 breaks the rubber tube 2 of the grommet. Through these, through workability and quality are significantly improved.

3 and 4 show a through jig 5B of the second embodiment. The jig body 9 of the threading jig 5B is composed of two parts: a disk-shaped fixing portion 9a and a leading portion 9b that is tapered in a substantially bullet shape.

On the outer peripheral surface of the fixing portion 9a of the jig body 9, as shown in FIG. 4 (A), for example, four wire harnesses 1 are provided at four equal positions on the circumference without any gap from the side. Slits 9c, ..., 9c that can be fitted are formed. In addition, a recess 9d is formed in the rear portion of the leading portion 9b, into which the terminal 1a of the wire harness 1 fitted in the fixing portion 9a is fitted and which is closed by the fixing portion 9a.

The lead wire 7 is movably inserted into the axial center portion of the leading portion 9b, and one end portion 7a of the lead wire 7 is fixed to the rear end of the fixing portion 9a.

In the threading jig 5B, first, each wire harness 1 is laterally fitted into the slit 9c of the fixing portion 9a of the jig body 9, and each wire harness 1 is pulled in the rear end direction (see the arrow). Then, each terminal 1a abuts on the front end of the fixed portion 9a and is locked and fixed. Then, the leading portion 9b is moved backward to fit the terminal 1a into the recess 9d, and the recess 9d is closed by the fixing portion 9a. After that, the other end 7b of the lead wire 7 is inserted into the hole of the tube 2 and the same threading operation as in the first embodiment is performed.

FIG. 5 shows a modified example of the first embodiment, in which the recesses 6d, ..., 6d formed in the fixing portion 6a of the jig body 6 are provided so as to be axially phased, and the depths thereof are adjacent to each other. One of the recesses 6d has a shallow depth d1 and the other has a deep depth d2. In this way, by shifting the terminals 1a of the wire harness 1 in the front-rear direction, the outer diameter of the jig body 6 can be reduced.

FIG. 6 is a modification of the second embodiment, in which the lead wire 7 is fixed to the leading portion 9b of the jig body 9 and a constant gap t is provided between the leading portion 9b and the fixing portion 9a. Separate. As a result, the terminal 1a of the wire harness 1 is obliquely inserted from the gap t into the recess 9d of the leading portion 9b (see arrow a), and then the wire harness 1 is laterally attached to the slit 9c of the fixing portion 9a. It can be fitted (see arrow b).

In each of the above embodiments, as shown in FIG. 7B, if a solid synthetic resin rod 10 is attached to the other end 7 b of the lead wire 7, the lead wire 7 is inserted into the hole of the tube 2. Work can be done easily.

[0025]

[Effect of device]

 As is clear from the above description, the threading jig for the wire harness of the present invention is such that the jig body, which detachably fixes the terminal connected to the tip of the wire harness, is detachably fixed by pulling the lead wire. A wire harness with a terminal can be easily and reliably passed through the hole in the tubular section. Therefore, as long as the lead wire is inserted, the wire harness can be passed through regardless of the uneven shape and length of the hole of the tubular portion. Also, the wire harness and terminals are less likely to be scratched or bent, and there is no risk of coming off the jig body during threading work, and there is also no risk of breaking the grommet rubber tube with the jig body. Through these, through workability and quality will be significantly improved.

[Brief description of drawings]

FIG. 1 is a side view of a threading jig and a wire harness according to a first embodiment of the present invention.

2A is a left side view of FIG. 1, and FIG. 2B is a right side view of FIG.

FIG. 3 is a side sectional view of a threading jig of a second embodiment.

4A is a left side view of FIG. 2, and FIG. 4B is a right side view of FIG.

FIG. 5A is a side view of a modification of the first embodiment, and FIG.
It is a right view of (A).

FIG. 6A is a side sectional view of a modification of the second embodiment,
(B) is a right side view of (A).

7 (A) and 7 (B) are side views of a through procedure.

8A and 8B are side views of a conventional threading jig.

[Explanation of symbols]

 1 wire harness 1a terminal 5A, 5B through jig 6,9 jig body 6a, 9a fixing part 6b, 9b leading part 7 lead wire

Claims (3)

[Scope of utility model registration request] 1. A jig for preliminarily inserting a wire harness having a terminal connected to a tip thereof into a tubular portion such as a grommet or a tube, wherein the terminal of the wire harness tip is housed and fixed inside, and Of the wire harness with a terminal, wherein the jig body has a tapered shape with a diameter smaller than that of the tubular portion, and a lead wire that is fixed to the tip of the jig body and is insertable into the hole of the tubular portion. Tubular threading jig. 2. The jig main body includes a housing portion having a slit for housing the wire harness through the outer peripheral surface thereof, and a recessed portion for housing the terminal which is continuous with the slit, and the housing portion is circumferentially arranged. A fixed part provided with a required space between the fixed part and a leading part having a conical shape integrally protruding from the tip of the fixed part and having a concave portion continuous with each concave portion on the outer peripheral surface. The tubular portion threading jig of the wire harness with a terminal according to claim 1, wherein the lead wire is fixed. 3. The jig main body includes a housing portion having a slit for housing the wire harness through the outer peripheral surface thereof, and a recessed portion for housing the wire harness connection side end portion of the terminal, which is continuous with the slit. A substantially bullet-shaped leading part that is continuously assembled to the fixing part so as to cover the substantially disk-shaped fixing part in which the accommodating part is provided with a required space in the circumferential direction and the terminals of the wire harness attached to the fixing part. 2. The tubular portion threading jig for a wire harness with a terminal according to claim 1, wherein the lead wire is fixed to the center of the fixing portion, and the center of the leading portion is penetrated so as to protrude from the jig body. .