JP2001229994A - Ground terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ground terminal, in which grounding can be performed surely at low cost, by devising a structure of a ground terminal itself, stripping off a coating of a side member of the opposing part, and thus enabling grounding of a ground terminal using a common bolt. SOLUTION: A ground terminal 11 is comprised of a crimping part 13, where an end of a cable 10 is crimped and fixed. Also the ground terminal 11 is structured to have a plate member 12, in which a bolt inserting aperture 12a is formed with a crimping part 13, and the protrusion members 16, 17, which are coupled to both ends of the plate member 12 via thin-walled portions 14a, 14b, while protruding outwardly from the both ends of the plate member 12, and where the projections 15a, 15b are formed at the front-ends in the direction of the protrusion of the protrusion members 16, 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground terminal, and more particularly, to a ground terminal that is devised when mounting a wire harness at a predetermined position of a panel member such as a vehicle body or an electric device.

[0002]

2. Description of the Related Art Generally, in a vehicle body or an electric device,
The electric components are connected to each other by a wire harness, and some of the electric wires constituting the wire harness are provided with a ground wire for grounding the electric components. FIG. 5 shows a conventional wire harness having this type of ground wire.

In FIG. 5, reference numeral 1 denotes a ground terminal provided at an end of an electric wire 2 constituting a part of a wire harness. The ground terminal 1 has a bolt insertion hole 1a through which a bolt 3 is inserted. I have.

The ground terminal 1 is inserted into the insertion hole 1a and the opening hole 4a in a state where the earth terminal 1 is positioned in the opening hole 4a of the body panel 4. And is grounded to the vehicle body panel 4.

On both sides of the vehicle body panel 4, reference numeral 6
Since the ground terminal 1 does not come into direct contact with the metal part of the vehicle body panel 4 because the paint is applied as shown by a and 6b, a bolt 3 having a substantially triangular cross section is used. When the shaft is inserted into the opening hole 4a while being rotated, the inner peripheral surface of the opening hole 4a is shaved by the protruding portions 3a to 3c to remove the paint, thereby exposing the metal portion of the vehicle body panel 4, and exposing the metal portion and the bolt. The ground terminal 1 is grounded via the terminal 3.

[0006]

However, in such a conventional grounding method, it is necessary to use bolts 3 having a substantially triangular cross section. There is a problem that the cost for performing the process increases, and that if the bolt 3 having a round cross section is used by mistake, the ground cannot be formed without removing the paint.

[0007] Therefore, the present invention allows the ground terminal to be grounded using a general bolt by devising the structure of the ground terminal itself and peeling off the paint on the mating member, thereby reducing the cost. It is an object of the present invention to provide a ground terminal that can reliably perform grounding.

[0008]

According to the first aspect of the present invention,
In order to solve the above-mentioned problem, in a ground terminal provided at an end of an electric wire and fixed to a counterpart member by a bolt, the end of the electric wire has a caulked portion to be caulked and fixed, and a bolt insertion hole is formed. A plate-shaped member, and a protruding member connected to both ends of the plate-shaped member via thin portions and protruding outward from both ends of the plate-shaped member, and having a scratched portion formed at a tip end in the protruding direction. It is characterized by having.

In this case, when the ground terminal is attached to the mating member with a bolt, the scratching portions provided at the tips of the pair of projecting members in the projecting direction come into contact with the mating member. When the ground terminal is pressed against the counterpart member by the bolt from this state, the protruding member moves outward while the scratching portion peels off the coating of the counterpart member at the thin portion.

For this reason, the metal surface of the mating member is exposed,
When the ground terminal comes into contact with the mating member, the metal portion comes into contact with the metal portion to ground the mating member. By devising the configuration of the ground terminal as described above, the ground terminal can be grounded using a general bolt, so that the ground terminal can be reliably grounded at low cost.

According to a second aspect of the present invention, in order to solve the above-mentioned problem, in the first aspect of the present invention, the scratched portion is formed of a projection.

In this case, the coating of the mating member can be reliably peeled off by the projection.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 are views showing an embodiment of a ground terminal according to the present invention.

First, the configuration will be described. 1 to 3, reference numeral 11 denotes a ground terminal provided at an end of the electric wire 10,
The ground terminal 11 has a plate-like member 12 having a bolt insertion hole 12a, a plate-like member 12, a caulking portion 13 to which the electric wire 10 is caulked, and thin portions 14a at both ends of the plate-like member 12,
And projecting members 16 and 17 having a plurality of projections (scratch portions) 15a and 15b formed at the leading end in the projecting direction. I have.

As shown in FIGS. 3 and 4, a bolt 18 having a circular cross section is inserted into the bolt insertion hole 12a. The bolt 18 connects the ground terminal 11 to a vehicle body panel (partner member) 19. When it is mounted, it is inserted into the opening 19 a of the vehicle body panel 19 and screwed to the nut 20. In FIG. 4, reference numerals 21 a and 21 b indicate coating applied to the surface of the vehicle body panel 19.

In order to attach the ground terminal 11 to the vehicle body panel 19, a bolt 18 is inserted into the insertion hole 12a of the plate member 12 as shown in FIG. Insert through the opening 19a and bolt 20 with nut 20
Screw. At this time, the projections 15a and 15b are
Abut.

When the nut 20 is screwed into the bolt 18 from this state, the ground terminal 11 is
19B, the thin portion 14a, as shown in FIG.
The projecting members 16 and 17 move outward while the protrusions 15a and 15b peel off the coating 21a applied to the surface of the vehicle body panel with the boundary 14b. Therefore, when the metal surface of the vehicle body panel 19 is exposed and the ground terminal 11 comes into contact with the vehicle body panel 19, the metal terminal can be brought into contact with the metal part to ground the vehicle body panel 19.

In this embodiment, the ground terminal 11
By devising the configuration described above, the ground terminal 11 can be reliably grounded using the bolt 18 having a general round cross-section, so that the ground terminal 11 can be reliably grounded at low cost.

[0020]

According to the first aspect of the present invention, the ground terminal can be reliably grounded by using a general round-shaped bolt, so that the ground terminal is reliably grounded at low cost. be able to.

According to the second aspect of the invention, the coating of the mating member can be reliably peeled off by the projection.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of a ground terminal according to the present invention, wherein (a) is an external perspective view of the ground terminal, and (b)
Is a top view thereof.

FIG. 2A is a side view of a ground terminal according to one embodiment;
(B) is a front view thereof.

FIG. 3A is a front view of a bolt according to an embodiment, and FIG.
FIG. 2 is a cross-sectional view taken along the line AA in FIG.

FIGS. 4A and 4B are diagrams showing a procedure for attaching a ground terminal according to one embodiment to a vehicle body panel.

5A is an external view of a conventional ground terminal, FIG. 5B is a view showing a state in which the conventional ground terminal is mounted on a vehicle body panel, FIG. 5C is a front view of a protruding bolt, and FIG. Figure (c)
It is sectional drawing in the BB direction arrow.

[Explanation of symbols]

 10 Electric wire 11 Ground terminal 12 Plate member 12a Bolt insertion hole 13 Caulked portion 14a, 14b Thin portion 15a, 15b Projection (scratch portion) 16, 17 Projection member 18 Bolt 19 Body panel (partner member) 19a Opening

Claims (2)

[Claims] An earth terminal provided at an end of an electric wire and fixed to a counterpart member by a bolt, comprising: a plate-like member having a caulked portion to which an end of the electric wire is caulked and having a bolt insertion hole formed therein. And a protruding member that is connected to both ends of the plate-shaped member via thin portions and protrudes outward from both ends of the plate-shaped member, and has a scratched portion formed at a tip end in the protruding direction. Characteristic ground terminal. 2. The ground terminal according to claim 1, wherein said scratched portion comprises a projection.