JPH08331732A - Structure of wire harness penetrating through car body - Google Patents

Abstract

PURPOSE: To provide a structure of penetrating through a car body with excellent assembly workability so as to permit easy, accurate installation of a wire harness through grommets in an assembling field to a car body. CONSTITUTION: This structure comprises a car body panel 1 having an opening 2 for inserting a wire harness 3, a protector 5 which covers the opening 2 and forms a tunnel portion communicating with the opening 2 through a car body panel 1, and a grommet 8 made of an elastic material pierced by through-hole 9 for the wire harness 3. A notch 10 coming to the through-hole 9 is provided in the grommet 8 so as to open and close the through-hole 9, and the grommet 8 is inserted in the tunnel portion, where the protector 5 is attached to the car body panel 1 in a detachable manner. The through-hole 9 is opened and the wire harness 3 is inserted from its opening to the through-hole, and the grommet 8 can be attached to the wire harness 3 by closing the opening.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness penetrating structure for penetrating a vehicle body panel, and more particularly to a vehicle body penetrating structure which is excellent in workability of assembling to a vehicle body panel.

[0002]

2. Description of the Related Art Conventionally, for example, the actual Kaihei 1-96721
As seen in Japanese Patent Publication, after inserting the wire harness into the grommet fitted into the opening provided in the panel, the protector fitted into the hole of the grommet through which the wire harness is inserted is fastened to the panel with screws or the like. Then, there is one that holds the grommet in place.

However, in the case of such a conventional example, since it is necessary to fit the grommet to the wire harness in advance and then fit the grommet into the opening of the panel at the assembly site, workability is not necessarily high. Can not. In addition, if a connector is attached to the tip of the wire harness, in any case, the wire harness should be inserted unless the wire harness insertion hole provided in the grommet is expanded and held by a dilator. Is difficult.

Further, as shown in FIG. 8, the grommet b inserted into the wire harness a is sandwiched between the panel c and the pedestal d so that the work of fitting the grommet b into the panel c is omitted. There is something I did (actual fairness 6-404
45). Reference numeral e is a wire harness insertion hole formed in the grommet b, f is a clamp body, and g is a lid.

However, even in this case, when a connector (not shown) or the like is attached to the tip of the wire harness a, the insertion hole e of the wire harness provided in the grommet b is not in a state of being expanded and held by a dilator or the like. Since it is difficult to insert the wire harness a through
Some kind of improvement was requested.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and even when a connector or the like is attached to the tip of the wire harness, the grommet is attached to the wire harness at the assembly site of the vehicle body. It is an object of the present invention to provide a vehicle body penetrating structure that can be easily and accurately attached to a vehicle body and that has excellent workability in assembling.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a structure in which a vehicle body panel having an opening for penetrating a wire harness is provided between a vehicle body panel and a tunnel portion which covers the opening and is continuous with the opening. And a grommet made of an elastic material penetrating the insertion hole of the wire harness. The grommet is provided with a notch reaching the insertion hole so that the insertion hole can be opened and closed, and the grommet is sandwiched in the tunnel portion so that the protector is detachably attached to the vehicle body panel.

[0008]

In the vehicle-body penetrating structure of the wire harness constructed as described above, since the grommet is provided with a notch reaching the insertion hole of the wire harness so that the insertion hole can be opened and closed, the wire is provided in the opening provided in the vehicle body panel. After passing through the harness, the grommet can be attached to the wire harness by opening the insertion hole, inserting the wire harness into the insertion hole through the opening, and closing the opening. Therefore, even when a connector or the like is attached to the tip, the grommet can be easily attached to an arbitrary intermediate position of the wire harness without using a dilator or the like.

When the grommet is attached to the wire harness as described above and the protector is attached to the vehicle body panel by sandwiching the grommet in the tunnel portion formed by the vehicle body panel and the protector, the tunnel portion is sealed by the grommet. At the same time, the grommet is closed and held by the sandwiching action of the vehicle body panel and the protector, and the inner peripheral surface of the insertion hole of the wire harness is pressed and held against the outer peripheral surface of the wire harness, so that the sealing property of the penetrating portion of the wire harness is secured. It

Therefore, even when a connector or the like is attached to the tip of the wire harness, there is no need to insert the wire harness into the grommet using a dilator or the like, and the grommet is sandwiched between the vehicle body panel and the protector. If the protector is attached to the vehicle body panel with, the sealing between the panel and the wire harness can also be performed, so that the workability of attaching the grommet to the vehicle body panel is improved and the workability of assembling the wire harness to the vehicle body is improved. Greatly improved.

[0011]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is an exploded perspective view showing an embodiment of a wire harness penetrating structure according to the present invention, FIG. 2 is a front view of the grommet shown in FIG. 1, FIG. 3 is a plan view of FIG. 2, and FIG. 2 is a right side view, FIG. 5 is a sectional view taken along line AA of FIG. 2, and FIG.
7 is a sectional view taken along line BB in FIG. 7, and FIG. 7 is a rear view of FIG.

In these figures, the vehicle body panel 1 is provided with an opening 2 for allowing the wire harness 3 to pass therethrough, and is provided with a recess 4 continuous with the opening 2. Further, the protector 5 is fastened to the upper surface of the vehicle body panel 1 with screws 6 so as to cover the opening 2, and the recess 7 facing the recess 4 is provided in the protector 5, so that the tunnel portion connected to the opening 2 is formed in both recesses. It is formed of 4 and 7.

The grommet 8 sandwiched between the recesses 4 and 7 is formed of a molded body made of an elastic material such as rubber having excellent weather resistance and wear resistance, and has a long tunnel portion. An insertion hole 9 is formed so as to extend along the depth direction. The notch 10 that reaches the inner peripheral surface of the insertion hole 9 is provided in the grommet 8 so that the lid portion 11 formed by the notch 10 can be opened and closed to open and close the insertion hole 9.

Reference numeral 12 is a gutter-shaped guide provided on an extension of the insertion hole 9, reference numeral 13 is an insertion hole provided in parallel with the insertion hole 9, and 14
Is a seal lip provided on the inner peripheral surface of the insertion hole 9, and 15 is a leg portion projecting from the lower surface of the grommet 8. The end surface of the lid portion 11 formed by the notch 10 and the surface facing the end surface are By forming the concave-convex shape, the concave-convex surfaces are meshed with each other so that the lid portion 11 can be rotated and held in the closed state, or the lid portion 11 can be opened and rotated as illustrated as necessary. There is.

In the vehicle body penetrating structure of the wire harness constructed as described above, since the notch 10 reaching the insertion hole 9 is provided in the grommet 8 so that the insertion hole 9 can be opened and closed,
After passing the wire harness 3 through the opening 2 provided in the vehicle body panel 1, the lid 11 of the grommet 8 is opened and rotated to open the insertion hole 9, and the wire harness 3 is inserted into the insertion hole 9 from the opening to cover the lid. The grommet 8 can be attached to the wire harness 3 by closing and rotating the portion 11. Therefore,
Even when a connector or the like is attached to the tip of the wire harness 3, the grommet 8 can be easily attached to any intermediate position of the wire harness 3.

In addition, as described above, the wire harness 3
After attaching the grommet 8 to the vehicle body panel 1, the grommet 8 is temporarily placed in the concave portion 4 formed in the vehicle body panel 1 and the protector 5 is attached to the vehicle body panel 1. The tunnel portion formed by the both concave portions 4 and 7 is sealed by the grommet 8. To be done. Since the lid 11 of the grommet 8 is closed and held by the sandwiching action of the vehicle body panel 1 and the protector 5 and the inner peripheral surface of the insertion hole 9 is pressed and held by the outer peripheral surface of the wire harness 3, the wire harness 3 is penetrated. The sealing property of the part is secured.

Therefore, even when a connector or the like is attached to the tip of the wire harness 3, there is no need to insert the wire harness into the grommet using an expander or the like.
Moreover, if the grommet 8 is sandwiched between the vehicle body panel 1 and the protector 5 and the protector 5 is attached to the vehicle body panel 1, the space between the panel 1 and the wire harness 3 can also be sealed, so that the grommet 8 for the vehicle body panel 1 is formed. The workability of assembling the wire harness is also improved, and the workability of assembling the wire harness to the vehicle body is significantly improved. A sealing material (not shown) is sandwiched between the front surface of the vehicle body panel 1 and the back surface of the protector 5 to ensure the sealing property between them.

In the above-mentioned embodiment, the insertion hole 13 which cannot be opened and closed is provided in addition to the insertion hole 9 which can be opened and closed. However, the insertion hole 13 is omitted, or the insertion hole 13 can be opened and closed. May be. Further, in the embodiment, the leg portion 15 is provided on the lower surface of the grommet 8 and the hole (not shown) is provided in the vehicle body panel 1, so that the leg portion 15 is inserted into the hole and the grommet 8 is positioned and engaged with the vehicle body panel 1. The wire harness 3 is inserted into the insertion hole 9 and then the rear assembly of the wire harness 3 is possible, but only the front assembly in which the wire harness 3 is incorporated into the grommet 8 is adopted before the grommet 8 is assembled to the vehicle body panel 1. In some cases, the legs 15 can be omitted.

Further, in the embodiment, the concave groove 16 along the width direction of the tunnel portion is provided on the upper surface of the grommet 8, and
A ridge 17 that engages with the groove 16 is provided on the lower surface of the recess 7 of the protector 5 to enhance the positioning action of the protector 5 and the grommet 8 and the sealing property of the tunnel portion by the grommet 8. The ridge 17 can be omitted.

[0020]

As apparent from the above description, according to the present invention, since the grommet is provided with a notch reaching the insertion hole of the wire harness so that the insertion hole can be opened and closed, the tip of the wire harness can be opened and closed. Even when the connector or the like is attached, the grommet can be easily and accurately attached to an arbitrary intermediate position without using a dilator or the like.

Further, since the grommet attached to the wire harness is sandwiched by the tunnel portion formed by the vehicle body panel and the protector to seal the tunnel portion and protect the grommet, a troublesome fitting work is performed. The grommet can be installed easily and accurately without using the grommet, and there is no concern that the grommet will fall out even when an external force is applied by stepping on the grommet, which increases the reliability of the sealing performance of the grommet. It is possible to provide a vehicle body penetrating structure that is excellent in sealing property and sealing property.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a wire harness penetrating structure according to the present invention.

FIG. 2 is a front view of the grommet shown in FIG.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a right side view of FIG. 2;

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a sectional view taken along line BB of FIG.

FIG. 7 is a rear view of FIG.

FIG. 8 is a sectional view showing a conventional example.

[Explanation of symbols]

 1 Body Panel 2 Opening 3 Wire Harness 4 Recess 5 Protector 6 Screw 7 Recess 8 Grommet 9 Insertion Hole 10 Notch 11 Lid 12 Guide 13 Insertion Hole 14 Seal Lip 15 Leg

Claims (1)

[Claims] 1. A vehicle body panel having an opening for penetrating a wire harness, and a protector for covering the opening and forming a tunnel portion connected to the opening between the vehicle body panel and the protector.
A protector is provided which includes a grommet made of an elastic material penetrating through the insertion hole of the wire harness, the grommet is provided with a notch reaching the insertion hole so that the insertion hole can be opened and closed, and the grommet is sandwiched in the tunnel portion. A wire-penetrating structure for a wire harness, characterized in that the body is detachably attached to a body panel.