JP2006036016A - Wire harness shielding structure of slide door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire harness shielding structure of a slide door applicable to a structure in which electric wires to be set over between the slide door and the vehicle body are drawn out from a harness drawout opening formed in a trim of a body panel, capable of assuring a fine outside appearance through shielding of the harness drawout opening and establishing waterproofing and dustproofing to inside the vehicle body. <P>SOLUTION: The shielding structure of the slide door is for a wire harness to be set over between the slide door 20 of the vehicle and the vehicle body 30, wherein the wire harness W/H is is drawn out of a case 21 fixed to the slide door 20, threaded through a long stretching cylindrical part 11 of an armoring member made of resilient material with one end attached to the case 21 and extended toward the vehicle body 30, and led into the vehicle body through the harness drawout opening 33 bored in the trim 32 of the vehicle body 30, and at the forefront on the body side of the cylindrical part 11, a shielding part 12 is formed to conceal the harness drawout opening 33 from outside. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wire harness shielding structure for a sliding door in an automobile, and more specifically, the appearance is improved by shielding an opening for drawing a wire harness formed in a trim of a vehicle body panel with an exterior material of the wire harness. At the same time, it is intended to waterproof and dust-proof the inside of the vehicle body.

Conventionally, electric parts such as power windows have been mounted on the sliding doors of automobiles, and a wire harness (door harness) is bridged between the sliding door and the car body in order to supply power to these electric parts from the car body side. ing.
Thus, an exterior material is attached to the wire harness of the wire harness that spans the slide door and the vehicle body, and the wire group is converged and protected from an external interference material.
For example, Japanese Patent Application Laid-Open No. 2003-335189 (Patent Document 1) discloses a structure in which a corrugated tube that has flexibility and follows an opening / closing operation of a slide door is sheathed on an electric wire group. Japanese Patent Laying-Open No. 2003-31266 (Patent Document 2) discloses a structure in which a caterpillar-shaped protector is sheathed on an electric wire group.

As shown in FIGS. 5 (A) and 5 (B), the electric wire group 2 spanning the sliding door (not shown) and the vehicle body 1 is connected to the wire harness lead opening 4 formed in the trim 3 on the surface of the vehicle body panel. The drawn wire group 2 is inserted through the grommet 5 and connected to the slide door side. Since the wire group W moves in the longitudinal direction of the vehicle following the opening / closing operation of the slide door (FIG. 5A shows when the door is open and FIG. 5B shows when the door is closed), the wire harness lead-out opening 4 Is set larger in the front-rear direction than the outer diameter of the grommet 5 sheathed on the wire group 2. Therefore, when the sliding door is in the open state, as shown in FIG. 5A, there is a problem that the parts inside the vehicle body are viewed from the wire harness drawing opening 4 and the appearance is not good. In addition, there is a problem that water is generated from the wire harness lead-out opening 4 or foreign matter enters.
JP 2003-335189 A JP 2003-31266 A

  The present invention has been made in view of the above problems, and has a structure in which an electric wire extending between a slide door and a vehicle body is drawn out from a wire harness drawing opening formed in a trim of a vehicle body panel. The exterior material is improved to improve the appearance and to be waterproof and dustproof to the inside of the vehicle body.

In order to solve the above-mentioned problem, the present invention is a shielding structure for a wire harness spanned between a sliding door and a vehicle body of an automobile,
The wire harness is pulled out from the inside of the case fixed to the sliding door, inserted into the long cylindrical portion of the exterior material made of an elastic material attached to the case and extended to the vehicle body side, A wire harness lead-out opening formed in the trim of the vehicle body is routed into the vehicle body, and a shielding portion for shielding the wire harness extraction opening from the outside is provided at the vehicle body side end of the long cylindrical portion. The wire harness shielding structure of the sliding door characterized by this is provided.

  According to the above configuration, since the shielding part is provided at the vehicle body side tip of the exterior material (for example, grommet) of the wire harness and the opening for drawing the wire harness is closed and shielded from the outside by the shielding part, the sliding door is opened. At times, parts inside the vehicle body cannot be visually observed from the opening for drawing out the wire harness, and the appearance can be improved and the appearance can be improved. In addition, it is possible to prevent water intrusion and foreign matter intrusion by closing the wire harness lead-out opening with the shielding portion of the exterior material.

  The shielding portion includes a main body having an upper surface opening and a substantially horizontal L-shaped cross section. The long cylindrical portion is continuous with one side of the main body, and the first flange is vertically outward from the edge of the other side. A second flange projecting from the bottom of the main body is connected to the lower end of the first flange, and the first flange is brought into contact with the inner surface of the trim when the sliding door is opened and the second flange The kicking plate is covered.

As described above, when the first flange and the second flange are protruded from the main body of the shielding portion, and the L-shaped flange is provided by continuing the first flange and the second flange, the strength of the shielding portion can be increased. In addition, when the exterior material is pulled excessively when the sliding door is open, the first flange contacts the inner surface of the trim and acts as a stopper, preventing the exterior material's shielding part from being displaced from the mounting position and ensuring that the interior is concealed. The appearance is not impaired. Furthermore, since the first flange is continuous with the second flange to increase the strength, it can sufficiently serve as the stopper.
And if a 2nd flange is covered with a kicking plate, it can prevent that a 2nd flange is raised, As a result, a deformation | transformation and position shift of a shielding part can be prevented. Thus, the second flange can also have a stopper function.

A third flange is formed as a part of one side of the L-shape of the main body, and an outer peripheral edge of the third flange is formed in a substantially arc shape so as to contact a weather strip attached along the periphery of the vehicle body when the sliding door is opened. Yes.
As described above, since the third flange is in contact with the weather strip on the vehicle body side when the slide door is opened, the waterproof performance on the vehicle body side can be improved even if rain is blown when the slide door is opened.

As described above, according to the present invention, a shielding portion is provided at the front end of the exterior member of the wire group extending between the sliding door and the vehicle body, and the wire harness drawing opening is closed by the shielding portion to shield from the outside. Therefore, when the slide door is opened, the inside of the vehicle body cannot be visually observed from the opening for drawing out the wire harness, and the appearance can be improved and the appearance can be improved. In addition, it is possible to prevent water intrusion and foreign matter intrusion by closing the wire harness lead-out opening with the shielding portion of the exterior material.
Furthermore, since the shielding portion has a stopper function, it is possible to prevent the exterior material from being excessively pulled when the slide door is opened.

Embodiments of the present invention will be described with reference to the drawings.
FIGS. 1 to 4 show an embodiment of the present invention, and an elastic portion of a resin or an elastomer is provided at a bridging portion of a wire group W constituting a wire harness W / H spanned between a sliding door 20 and a vehicle body 30 of an automobile. A grommet 10 made of a material is externally provided.

The grommet 10 includes a bellows-like long cylindrical portion 11 through which the electric wire group W is inserted, and a shielding portion 12 that is continuously formed integrally with the end of the long cylindrical portion 11 on the vehicle body side.
A door-side tip 11 a of the long cylindrical portion 11 is attached to a caterpillar portion 22 provided at a lower portion of a metal door-side case 21 fixed to the slide door 20 so as to be rotatable in the longitudinal direction X of the vehicle. The wire group W drawn out from the door-side tip 11a of the long cylindrical portion 11 is housed in the door-side case 21, and the connector 23 connected to the door-side terminal of the wire group W is a wire harness in the slide door 20. And a connector (not shown) of the electric wire terminal.

  As shown in FIG. 2, the shield 12 integrally molded at the front end of the long cylindrical portion 11 has a wire harness lead opening 33 (hereinafter referred to as an opening 33) formed in the trim 32 on the surface of the vehicle body panel 31. (Abbreviated) is arranged to be shielded. The opening 33 is formed at a position where it hits the lower bent portion of the weather strip 34 attached along the periphery of the opening on the vehicle body side. The opening 33 follows the opening / closing operation of the sliding door 20 by the wire harness W / H. Is longer than the outer diameter of the long cylindrical portion 11.

As shown in FIG. 3, the shielding part 12 includes a main body 12 a that is continuous in the vertical direction perpendicular to the axial direction of the long cylindrical part 11, has an upper surface opening, and has a substantially horizontal L-shaped cross section. The bent portion of the main body 12a has a large arc shape, in other words, a substantially semicircular shape.
A first flange 12d is projected from the one side surface 12b of the main body 12a so as to be continuous with the long cylindrical portion 11 and perpendicular to the edge of the other side 12c. And the 2nd flange 12e which protrudes from the bottom part of the main body 12a is made to continue to the lower end of this 1st flange 12d. Further, a third flange 12f is projected outwardly from the other end edge of the opening facing the projecting side of the first flange 12d, and the outer peripheral edge 12f-1 of the third flange has an arc shape.

As shown in FIG. 1, the wire group W drawn from the front end of the grommet 10 on the vehicle body side is drawn upward from the upper surface opening of the main body 12 a of the shielding portion 12.
The first flange 12d is located in the opening 33 and abuts against the inner surface of the trim 32 when the sliding door is opened.
The second flange 12e is positioned on the lower surface side of the kicking plate (step plate) 15 attached to the lower end of the door opening on the vehicle body side, and is set so that the kicking plate 15 covers the upper surface of the second flange 12e. Yes.
Further, the outer peripheral edge 12f-1 of the third flange 12f is set to abut against the weather strip 34 when the sliding door is opened.

The wire group W drawn out from the shielding portion 12 of the grommet 10 is accommodated in the trim 32, bolted and fixed to the vehicle body via a bracket 35 attached to the wire group W, and a connector 36 connected to the terminal is provided in the vehicle body 30. A connector (not shown) of the wire end of the wire harness is connected to the connector.
In addition, a water stop grommet 37 having a diameter reduced toward the terminal side is provided in the vicinity of the terminal of the wire group W so that the water transmitted through the wire group W can be stopped by the water stop grommet 37. Yes. Therefore, the connector 36 is a non-waterproof connector.
Note that a corrugated tube or a tube without unevenness is externally provided on the portion of the electric wire group W accommodated in the trim 32 as necessary.

Next, the operation of the grommet 10 accompanying the opening / closing operation of the slide door 20 will be described.
4A shows when the door is open, and FIG. 4B shows when the door is closed. The vertical direction in the figure corresponds to the longitudinal direction of the automobile, and the lower side in the figure corresponds to the front of the automobile.

  When the slide door 20 is slid to the rear side of the automobile and opened as shown in FIG. 4A from the state shown in FIG. 4B where the slide door 20 is closed, the grommet follows the operation of the slide door 20. The ten long cylindrical portions 11 also move backward. At this time, the shielding portion 12 of the grommet 10 rotates counterclockwise along the outer peripheral surface of the wire group W drawn from the shielding portion 12, and the first flange 12 d is formed on the inner surface of the trim 32 at the periphery of the opening 33. The opening 33 is closed by the shielding portion 12. At the same time, the tip circular arc surface 12 f-1 of the third second flange 12 f comes into contact with the outer peripheral surface of the bent portion of the weather strip 34.

  In the present embodiment, the first flange 12d of the shielding part 12 of the grommet 10 is in contact with the inner surface of the trim 32 when the slide door is opened. However, the first flange 12d is not in contact with the wire harness W / H. The first flange 12d may be brought into contact with the inner surface of the trim for the first time when a tensile force is generated, and may serve as a stopper.

  On the other hand, when the slide door 20 is slid to the front side of the automobile and closed as shown in FIG. 4B from the state shown in FIG. 4A where the slide door 20 is opened, the operation of the slide door 20 follows. Thus, the long cylindrical portion 11 of the grommet 10 also moves forward. At this time, the shielding part 12 of the grommet 10 rotates in the clockwise direction along the outer peripheral surface of the wire group W drawn from the shielding part 12 and returns to the original state.

According to the said structure, the shielding part 12 is provided in the vehicle body side front-end | tip of the grommet 10 which coat | covers the electric wire group W spanned between the slide door 20 and the vehicle body 30, and the opening 33 for wire harness drawing is closed and concealed from the outside. Therefore, when the slide door 20 is opened, the inside of the vehicle body cannot be visually observed from the wire harness drawing opening 33, and the appearance can be improved and the appearance can be improved.
Further, by closing the wire harness lead-out opening 33, it is possible to prevent water from entering and foreign matter from entering.

It is a perspective view which shows embodiment of this invention. The state which has arrange | positioned the grommet in the vehicle body side of a motor vehicle is shown, (A) is a perspective view except a trim and a kicking plate, (B) is a perspective view which shows the state which closed the opening for wire harness extraction with the shielding part of the grommet. is there. It is a principal part expansion perspective view of the shielding part of a grommet. (A) is the schematic which shows the state which opened the sliding door, (B) is the schematic which shows the state which closed the sliding door. (A) (B) is drawing which shows the problem of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Grommet 11 Long cylinder part 12 Shielding part 12a Main body 12d First flange 12e Second flange 12f Third flange 20 Slide door 21 Door side case 30 Car body 31 Car body panel 32 Trim 33 Wire harness extraction opening 34 Weather strip W Electric wire group W / H wire harness

Claims (3)

A wire harness shielding structure that spans the sliding door and body of an automobile,
The wire harness is pulled out from the inside of the case fixed to the sliding door, inserted into the long cylindrical portion of the exterior material made of an elastic material attached to the case and extended to the vehicle body side, A wire harness lead-out opening formed in the trim of the vehicle body is routed into the vehicle body, and a shielding portion for shielding the wire harness extraction opening from the outside is provided at the vehicle body side end of the long cylindrical portion. The wire harness shielding structure of the sliding door characterized by this.   The shielding portion includes a main body having an upper surface opening and a substantially horizontal L-shaped cross section of the vehicle. A second flange projecting from the bottom of the main body is connected to the lower end of the first flange, and the first flange is brought into contact with the inner surface of the trim when the sliding door is opened and the second flange The wire harness shielding structure for a sliding door according to claim 1, wherein the kicking plate is covered with the sliding door.   A part of one side of the main body is a third flange, and an outer peripheral edge of the third flange is formed in a substantially arc shape and is in contact with a weather strip attached along the periphery of the vehicle body when the sliding door is opened. The wire harness shielding structure of the sliding door as described in 2.

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