JP2003229185A - Grounding terminal and grounding terminal mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grounding terminal which can easily be retrieved with high percentage and with which scrapping labor can be saved and scrapping cost can be reduced, when the terminal connected to the end of a grounding cable assembled in a wire harness without damaging commercial value of recycled iron when scrapping waste cars. <P>SOLUTION: The terminal 11 is for connecting to the end of a grounding cable assembled into a wire harness installed in an automobile and for mounting and fixing to a car body, and is composed of an electric cable connection section 13 and a fixing member joint section 12 with a mounting opening 14 for the fixing member formed. A front side of the opening 14 of the fixing member joint section 12 is open and its tips are bent forming engaging sections 16A, 16B to be engaged with transparent holes arranged on the car body side. Both sides of the width direction of the cable connection section 13 are folded forming an electrode connection section for grounding. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grounding terminal and a grounding terminal mounting structure for connecting to a grounding wire incorporated in a wire harness of an automobile and mounting it on a vehicle body.

[0002]

2. Description of the Related Art In wire harnesses for automobiles,
An electric wire for grounding (hereinafter, also referred to as a grounding wire) is incorporated, a grounding terminal is crimped to the end thereof, and the grounding terminal is attached to a predetermined position of the vehicle body by a fixing member such as a bolt or a screw.

On the other hand, in recent years, reuse of resources, that is, recycling has become a major issue and is spreading in various fields. Automobile parts are no exception, and active studies are being conducted on how they can be effectively used.

In particular, attention has been paid to the recovery of iron-making raw materials for blast furnaces from used vehicles, that is, the recovery of high-quality scrap that can be used as a raw material for high-grade steel such as vehicle body thin plates. To do this, in dismantling used vehicles,
Non-ferrous metal recovery, especially the separation of wire harnesses, has become a problem. Especially, it is important to surely remove the wire harness from the vehicle body among the wire harnesses for automobiles.

FIG. 1 shows a structure for mounting a ground terminal of a conventional automobile wire harness. In the figure, 1 is a ground wire incorporated in a wire harness, and a ground terminal 2 is provided at the end of the ground wire.
Is attached. The ground terminal 2 has a round terminal shape at its bolt fastening portion, and is generally fastened and fixed to the vehicle body B by a bolt 3. FIG. 2 shows the mounting state.

[0006] When removing such a ground wire 1 from a used automobile, usually, a wire harness in which the ground wire 1 is incorporated is hooked on a J-shaped hook of a lifting device such as a crane, pulled up, removed, and recovered. Is going. However, in the connection part of the wire harness connector, the lock part tends to be destroyed and the coupling part tends to come off, but the fastening part of the ground terminal 2 is tightly bolted, so a very strong force is required to remove it. Is. Then, the ground wire 1 itself is often torn off before the ground terminal portion is removed, and the debris remains on the vehicle body B side. Then, resin and non-ferrous metal remain on the vehicle body side, and the vehicle body (iron plate)
When recycling the above, impurities are mixed and the commercial value thereof is reduced, which is not preferable. In addition, in order to remove the ground terminal 2, it is necessary to completely remove the bolt 3 and then remove the wire harness.
It takes time and labor, and the dismantling cost increases.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and is incorporated in a wire harness without deteriorating the merchantability of recycled iron at the time of dismantling a discarded vehicle. An object of the present invention is to provide an earth terminal and an earth terminal mounting structure that can easily and highly collect the earth terminal connected to the end of the earth wire, save labor for dismantling, and reduce dismantling cost. And

[0008]

According to the present invention, the above problems can be solved by the following technical means. (1) Fixing in which a wire connecting portion and a fixing member mounting opening are formed in a ground terminal for connecting and fixing to a vehicle body, which is connected to an end of a grounding electric wire incorporated in a wire harness arranged in an automobile A fixing member fastening portion, the front side of the opening of the fixing member fastening portion is open, and the tip end portion thereof is bent and can engage with a through hole provided on the vehicle body side. Is formed in the engaging portion,
A grounding terminal characterized in that both sides in the width direction are bent at the wire connecting portion to form a grounding electrode connecting portion. (2) A structure for mounting the ground terminal according to (1) above on a vehicle body of an automobile, wherein a fixing member mounting hole and an engaging hole for engaging the tip portion of the ground terminal are provided on the vehicle body side. The fixing member is fastened and fixed to the fixing member mounting opening of the ground terminal and the fixing member mounting hole provided on the vehicle body side, and the engaging portion of the ground terminal is on the vehicle body side. An earth terminal mounting structure characterized by being engaged and fixed in the engaging hole.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to preferred examples. 3A and 3B are views showing a ground terminal (hereinafter, also referred to as a main ground terminal) according to an embodiment of the present invention, (a) is a plan view and (b) is a side view. This earth terminal is used for connecting to an electric wire for earth incorporated in a wire harness routed to an automobile and fixing it to the vehicle body.

In FIG. 3, 11 is a main earth terminal,
It is manufactured by punching a plate-shaped body made of a conductive material as a whole and bending a part of the plate-shaped body. The main earth terminal 11 is roughly divided into a bolt fastening portion 12 and an electric wire connecting portion 13. The bolt fastening portion 12 is formed with an opening 14 for allowing a mounting bolt (not shown) to pass therethrough. The opening 14 has a portion for mounting the mounting bolt, and the front side (left side in the drawing) is shown in FIG.
It has an open shape as shown in FIG. Reference numeral 15 in the drawing is an open portion. Further, the bolt fastening portion 12 has its tip folded back downward to form engaging portions 16A and 16B.

On the other hand, the wire connecting portion 13 is the main earth terminal 1
1 for connecting to the ground wire W. The electric wire connecting portion 13 has a pair of front and rear rising portions formed from both left and right edges of the bottom plate portion 17 to form a front crimp fixing portion 18 and a rear crimp fixing portion 19 (note that these crimp fixing portions are shown in FIG. 4). Is shown after crimping and fixing). The front crimping and fixing portion 18 crimps and fixes the core wire 20 of the ground wire W, and the rear crimping and fixing portion 19 crimps and fixes the insulating coating portion 21 of the ground wire W.

According to the structure of the earth terminal 11, the mounting on the vehicle body is performed as shown in FIG. First,
The front crimping fixing portion 18 of the connecting portion 13 of the earth terminal 11,
The core wire 20 of the ground wire W and the insulating coating portion 21 are applied to the rear crimp connection portion 19, respectively, and they are crimped and fixed by crimping. Then, the bolt T is connected to the bolt fastening portion 12 of the ground terminal 11.
Through the opening 14 of the vehicle body B and fastened and fixed in the mounting hole 13 of the vehicle body B.
6B is engaged and fixed in an engagement hole 23 formed in the vehicle body B.
At this time, if only the opening 15 is provided, the bolt T
When the bolt is tightened too much, the tip of the open portion 15 spreads outward and the bolt fastening portion 12 is bent, resulting in a decrease in the contact area of the contact portion with the vehicle body B, which may cause poor contact. Come out. However, in this embodiment, the engaging hole 23 is provided, and the engaging portion 1 of the bolt fastening portion 12 is provided therein.
Since 6A and 16B are engaged with each other, the tip ends are prevented from expanding, and the force of bending is absorbed, and bending is effectively prevented.

The work for removing the wire harness during the dismantling work of the vehicle is performed as follows. First, after slightly loosening the bolt T with a tool such as a spanner, a hook of a lifting device such as a crane is hooked at an appropriate position of a wire harness (not shown) and pulled up to exert a pulling force. Then, the engagement of the engagement portions 16A and 16B with the engagement hole 23 is released, and in combination with the front side of the opening 24 being in the open state, the bolt T is not completely removed, Ground terminal 1 by loosening it slightly
1 is released from the fastening by the bolt T, and the ground terminal 11
Can be easily removed and recovered.

With such a structure as shown in FIG. 3, since the ground terminal 11 can be removed and recovered at a high recovery rate, the recyclability can be improved. Further, since the earth terminal 11 can be manufactured by bending or folding back one punched plate-like body made of a conductive material, its structure is simple, and the production efficiency is good, and the cost is low. It becomes possible to provide. further,
Since the recovered iron is not mixed with impurities such as copper, the quality of the recycled iron can be improved.

FIG. 5 is a diagram showing a modification of the present invention.
(A) shows a state before bending the engaging portions 16A ', 16B', (b) shows a state after bending, (c).
FIG. 4B is a side view of FIG. Ground terminal 1 of this modification
In 1 ', the shapes of the engaging portions 16A' and 16B 'are changed. Even with such a structure, the ground terminal 1 of FIG.
Similar to the item 1, the excellent effect can be obtained.

Although the present invention has been described based on the embodiments and modifications, the present invention is not limited to the above embodiments and modifications, and various modifications and changes can be made. For example, although the bolts are used to attach the ground terminal to the vehicle body in the above-described embodiments, the present invention is not limited to this, and various fixing members conventionally used such as screws can be used. Further, the electric wire connecting portion 13 by crimping and fixing is not limited to the form as shown in the figure, as long as the earth wire can be firmly crimped and fixed.
It is possible to use various pressure-bonding and fixing structures that have been conventionally used.

[0017]

As described above in detail, according to the present invention, the earth connected to the end of the earth wire incorporated in the wire harness can be used without deteriorating the merchantability of the recycled iron at the time of dismantling the discarded vehicle. (EN) It is possible to provide a ground terminal and a ground terminal mounting structure that can collect terminals easily and at a high rate, save labor for dismantling, and reduce dismantling costs.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a structure of an example of a conventional ground terminal.

FIG. 2 is a view showing a conventional ground terminal mounting structure.

3A and 3B are views showing a structure of an earth terminal according to an embodiment of the present invention, in which FIG. 3A is a plan view and FIG. 3B is a side view.

FIG. 4 is an explanatory diagram of how the ground terminal of FIG. 3 is attached.

FIG. 5 is a diagram showing a structure of a ground terminal of a modified example.

[Explanation of symbols] 11, 11 'ground terminal 12 bolt fastening part 13 Wire connection part 14 openings 15 Open section 16A, 16B; 16A ', 16B' engaging portion 17 Bottom plate 18 Front crimp fixing part 19 Rear crimp fixing part 20 core wire 21 Insulation coating 22 Bolt mounting hole 23 Engagement hole W ground terminal B body T bolt

   ─────────────────────────────────────────────────── ─── Continued front page    (71) Applicant 000003207             Toyota Motor Corporation             1 Toyota Town, Toyota City, Aichi Prefecture (72) Inventor Takamitsu Miyakoi             1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi             Auto Network Technical Laboratory Co., Ltd. (72) Inventor Hiroyuki Hayashi             1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi             Auto Network Technical Laboratory Co., Ltd. (72) Inventor Keiichi Ito             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Yoshihide Tsukamoto             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Masanori Wakui             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Isao Yoneyama             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. F-term (reference) 5G309 AA11 LA26

Claims (2)

[Claims] 1. A grounding terminal for connecting to an end of a grounding wire incorporated in a wire harness arranged in an automobile and fixing and fixing to a vehicle body, wherein a wire connecting portion and a fixing member mounting opening are formed. A fixing member fastening portion, the front side of the opening of the fixing member fastening portion is open, and the tip end portion thereof is bent and engages with a through hole provided on the vehicle body side. A grounding terminal, which is formed on a possible engaging portion, and further has a grounding electrode connecting portion formed by bending both sides in the width direction of the electric wire connecting portion. 2. A structure for mounting the ground terminal according to claim 1 on a vehicle body of an automobile, wherein an engaging hole for engaging a fixing member mounting hole and the tip portion of the ground terminal on the vehicle body side. And a fixing member is fastened and fixed to the fixing member mounting opening of the ground terminal and the fixing member mounting hole provided on the vehicle body side, and the engaging portion of the ground terminal is on the vehicle body side. The earth terminal mounting structure, characterized in that the earth terminal mounting structure is engaged and fixed in the engaging hole.