JP2003061230A - Attaching structure of grommet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attaching structure of a grommet by which the grommet can be attached to a vehicle door, etc., with the improved tightness. SOLUTION: This attaching structure of a grommet has rail members 300 which have rail grooves 310 and are arranged into an approximate U-shape on a grommet attaching part 11 of a vehicle door 10, etc., to form a U-shaped rail groove composed of the respective rail grooves. Three edges 210a of a plate member 210 on a grommet 100A side are inserted into the U-shaped groove to attach the grommet 100A. With such a constitution, the tight attachment of the grommet 100A can be obtained and, for instance, even if a vehicle is sprayed with high pressure water for the car washing, heavy splashes in traveling, etc., penetration of water into a cabin can be effectively avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a grommet mounted on an object such as a vehicle door, and more particularly to a structure in which the adhesion of the mounting portion is improved.

[0002]

2. Description of the Related Art Conventionally, a grommet, for example, a grommet of a non-penetrating type vehicle door wire harness, is attached to a vehicle door as shown in FIG. That is, the mounting holes 22 provided in the plate member 21 made of resin of the grommet 20A are aligned with the mounting holes 12 provided in the periphery of the grommet mounting portion (opening portion) 11 of the vehicle door 10, Fixing tools 30, 30 such as screws are screwed and attached here. As shown in FIG. 7, the front side of the plate member 21 is covered with a cover member 23 made of rubber or the like, and on the inside (folded piece portion) of the cover member 23, the convex seal portion 23 is formed.
a is formed, and an extension piece 23b that is bent outward is formed from a part of the front side thereof. For this reason, when the grommet 20A is screwed, the convex seal portion 23a comes into close contact with the surface of the vehicle door, and the extending piece 23b becomes a shape that covers the inside opening portion of the vehicle door of the grommet mounting portion 11. As a result, some waterproofness is obtained.

On the other hand, a grommet 20 as shown in FIG.
In B, the convex anchor portion 24 is provided inside the plate member 21 made of resin or the like, and the anchor portion 24 is fitted into the hole provided on the door side, so that the grommet mounting portion of the vehicle door is attached. It is designed to be crimped to. In this case as well, the protruding seal portion 23a of the cover member 23 made of rubber or the like that covers the plate member 21 is in close contact with the vehicle door surface, and the extended piece 23b bent from a part of the cover member 23 is formed. Has a shape that covers the opening portion of the grommet mounting portion on the inside of the vehicle door, and this provides some waterproofness.

[0004]

However, in the above-described mounting structure, the convex seal portion 23a is pressed against the door surface side with a uniform pressure over the entire circumference to obtain high adhesion. That is, there are 2 mounting points with the fixture 30.
It was difficult because there were only one place and one place where the anchor portion 24 was attached. For this reason, there is a problem in that, if the water is suitable for high-pressure water during car washing or strong splashing water during running, water will enter the vehicle interior through the weak seal.

Therefore, in order to obtain higher adhesion, it is conceivable to increase the number of attachment points by the fixture 30 and the number of attachment points by the anchor portion 24. In this case, however, the structure is inevitable, and The installation work becomes complicated and a new problem occurs that workability is reduced.

Therefore, a method of increasing the rigidity of the plate member itself can be considered as another means for obtaining high adhesion without increasing the number of fixing points, but this method requires thickening of the plate member and the like. Therefore, the grommet may be increased in size.

The present invention has been made in view of the above situation. One of the present invention is to introduce an engaging relationship between a groove and a ridge continuous in the longitudinal direction at a mounting portion of an object such as a vehicle door and a grommet, and another is a grommet. The device itself is attached integrally with a module member of an object such as a vehicle door. Due to these measures, it is possible to obtain a grommet mounting structure having a relatively simple structure, capable of maintaining high adhesion, and excellent in waterproofness.

[0008]

According to a first aspect of the present invention, a rail member having a rail groove is provided at a grommet mounting portion on an object side such as a vehicle door, while the rail groove of the rail member is provided with: A grommet mounting structure is characterized in that the edge of the plate member on the grommet side is fitted and mounted.

According to a second aspect of the present invention, the rail members are arranged in a substantially U-shape to form a U-shaped rail groove portion formed of a combination of the rail grooves, and the U-shaped rail groove portion is formed. The grommet mounting structure according to claim 1, wherein the plate member is mounted by fitting the edges in three directions.

According to a third aspect of the present invention, in the cover member of the grommet, the extending piece provided on the open side of the U-shaped rail groove portion is fixed to an object such as the vehicle door. According to another aspect of the present invention, there is provided a grommet mounting structure.

According to a fourth aspect of the present invention, the rail groove of the rail member is changed to a rail ridge, and the rail groove is provided at an edge portion of the plate member so as to be fitted into each other. The grommet mounting structure according to claim 1, 2 or 3.

According to a fifth aspect of the present invention, a grommet mounting structure is characterized in that a grommet integrated with a module member of the object is attached to an object-side grommet mounting portion such as a vehicle door. It is in.

[0013]

1 to 3 show one example of a grommet mounting structure according to the present invention. In the figure,
Reference numeral 10 is a vehicle door, 11 is a grommet mounting portion (opening portion) thereof, and 200A is a grommet.

The grommet 200A is for a non-penetrating vehicle door wire harness, and is a plate member 210 made of resin (may be made of metal or other composite material).
And a cover member 220 made of rubber or the like covering the frame portion 211 side, and a convex seal portion 221 formed inside the cover member 220 (folded piece portion).
And an extension piece 222 extending outward from a part of the front side thereof and formed by bending.

On the other hand, at the grommet mounting portion 11,
A rail member 300 having a rail groove 310 is provided on the end surface of the opening portion in the three directions of the front wall portion of the door. As a result, the rail members 300 are arranged in a substantially U-shape, and the U-shaped rail groove portion 3 formed of a combination of the rail grooves 310 is formed.
10A is formed.

Therefore, when mounting the grommet 200A, the U-shaped rail groove portion 31 of the grommet mounting portion 11 is mounted.
As shown in FIGS. 1 and 3, with respect to 0A, the grommet 200A is moved forward from the direction of the arrow X, fitted, and slid.

Then, first, the upper and lower edges 210a, 210a of the plate member 210 are, as shown in FIG.
Rail grooves 310, 3 of upper and lower rail members 300, 300
When the grommet 200 </ b> A itself fits in the inside of the rail member 10 and goes to the back, the front edge 210 a of the plate member 210 fits into the rail groove 310 of the rail member 300.

As a result, the edge portions 210a of the plate member 210 in the three directions are firmly attached and fixed to the U-shaped rail groove portion 310A. And finally, as shown in FIG. 1, the mounting hole 222a of the extension piece 222 is aligned with the mounting hole 12 provided around the grommet mounting portion 11, and the fixing tool 30 such as a screw is inserted therein. Then screw it in.

In this mounting, the plate member 210 has three
The edge 210a in the direction is the rail groove 3 of the rail member 300.
As it is fixed tightly over the entire length of 10, as a result,
The convex seal portion 221 is pressed against the door surface side with substantially uniform pressure over the entire length thereof. Therefore,
High adhesion can be obtained. Thus, for example, even if the water is suitable for high-pressure water during car washing or strong splashing water during traveling, it is possible to effectively prevent water from entering the vehicle interior. That is, high waterproofness can be obtained.

On the other hand, even on the open side of the U-shaped rail groove portion 310A, the extending piece 222 of the cover member 220 is screwed, so that it is firmly fixed. In addition, the extension piece 222
The waterproofness of the side is, for example, as shown in FIG. 1, after attaching the grommet 200A to the grommet attaching portion 11 side,
Since the sealing material (weather strip) 15 is attached,
It is secured by this sealing material 15.

In the grommet mounting structure shown in FIGS. 1 to 3, the edge 210a of the plate member 210 of the grommet 200A is fitted into the rail groove 310 of the rail member 300, but the present invention is not limited to this. Not done. For example, the edge portion 2 of the plate member 210 as shown in FIG.
While preparing the grommet 200B in which the rail groove 212 is provided on the rail groove 10a, the rail groove 310 is provided on the rail member 300 side instead of the rail groove 310, and these rail grooves 2 are provided.
Alternatively, the rail 12 and the rail ridge 320 may be fitted together. Of course, due to these engagement relationships,
The same action and effect as in the case of FIGS. 1 to 3 can be obtained.

FIG. 5 shows another example of the grommet mounting structure according to the present invention. In this case, the grommet 200C itself is integrated with the module member 13 of the vehicle door 10. Therefore, this grommet 2
00C, if the module member 13 is attached to the predetermined portion 14 of the door 10, the corresponding grommet attachment portion 1
1 is installed almost automatically.

The module member 13 constitutes the skeleton of the door module body, and is usually formed of a single plate having high rigidity using a panel of metal or resin. Therefore, of course, the main body portion 230 of the grommet 200C also has a large rigidity, and the inside of the main body portion 230 adheres to the door surface side with a uniform pressure over the entire surface. Thereby, high adhesion can be obtained. The main body 230
Similarly to the normal grommet, a cover member made of rubber or the like may be covered so that the seal portion of the convex line inside the cover member is pressed against the door surface side. Due to this high adhesion, high waterproofness can be obtained as in the case of FIGS.

In the above embodiment, the rail member 300 is used.
Are arranged in a substantially U-shape to form the U-shaped rail groove portion 310A, but the present invention is not limited to this. Rail member 30
The case where 0 is only one is also included. Although the rail grooves 310 and 212 are concave, the present invention is not limited to this. It is also possible to use a simple L-shaped rail groove.
Further, as another method of fixing the plate member 210 to the door body, an anchor portion inside the extension piece 222 can be fixed by providing a fitting hole on the door side.

[0025]

As is apparent from the above description, according to one of the grommet mounting structures of the present invention, the rail groove and the edge of the plate member are attached to the mounting portion of the object such as a vehicle door and the grommet. Since the rail ridges are engaged with each other like parts, a uniform pressure can be secured over the entire length of the sealing portion of the grommet, and high adhesion can be obtained. Therefore, for example, it is possible to effectively prevent the intrusion of water into the passenger compartment even when the water is suitable for high-pressure water during car washing or strong splashing water during traveling.

Further, even in the plate member portion of the grommet, unlike the crimping structure as shown in FIGS. 7 to 8, the seal portion can be crimped without requiring high rigidity, and thus the plate thickness Since it can be made thinner, it can be constructed with less material than conventional products, and thus there is an advantage that weight can be reduced.

According to another grommet mounting structure of the present invention, since the grommet itself is mounted integrally with a module member of an object such as a vehicle door, the grommet is used for mounting the module member. Since it is attached almost automatically, the workability is greatly improved. Of course, if the module member having high rigidity is selected as the module member, high adhesion can be obtained even in the grommet portion.

[Brief description of drawings]

FIG. 1 is a perspective view showing a developed state of an embodiment of a grommet mounting structure according to the present invention.

FIG. 2 is a vertical sectional side view showing a mounted state of the grommet of FIG.

FIG. 3 is a side view showing an arrangement state of a plate member and an object-side rail member in the grommet of FIG.

FIG. 4 is a vertical cross-sectional side view showing a mounting state according to another embodiment of the grommet mounting structure according to the present invention.

FIG. 5 is a perspective view showing a developed state of another embodiment of the grommet mounting structure according to the present invention.

FIG. 6 is a developed perspective view showing a conventional grommet mounting structure.

FIG. 7 is a perspective view showing the inside of a conventional grommet.

FIG. 8 is a perspective view showing the inside of another conventional grommet.

[Explanation of symbols]

10 Vehicle door 11 Grommet mounting part 13 Module members 200A-C Grommet 210 plate member 220 cover member 221 Seal part 222 extension piece 300 rail members 310 Rail groove 310A U-shaped rail groove 320 rail ridge

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kenichiro Takahashi             1-5-1 Kiba Stock Exchange, Koto-ku, Tokyo             Inside Fujikura F-term (reference) 5G333 AA09 AB16 AB27 AB28 CB19                       EA02                 5G357 DA02 DB03 DC12 DD01 DD05                 5G363 AA01 BA02 CA14 CB08 DC03

Claims (5)

[Claims] 1. A rail member having a rail groove is provided in a grommet mounting portion on an object side such as a vehicle door, and an edge of a grommet side plate member is fitted into the rail groove of the rail member for mounting. Grommet mounting structure characterized by 2. The rail member is arranged in a generally U-shape to form a U-shaped rail groove portion formed of a combination of rail grooves, and the U-shaped rail groove portion is formed in three directions of the plate member. The grommet mounting structure according to claim 1, wherein the grommet is mounted by fitting the edge portion. 3. The grommet cover member fixes an extension piece provided on the open side of the U-shaped rail groove portion to an object such as the vehicle door. The mounting structure of the grommet described. 4. The rail groove of the rail member is changed to a rail ridge, while the rail groove is provided at an edge portion of the plate member so as to be fitted into each other. Grommet mounting structure described in 3. 5. A grommet mounting structure, wherein a grommet integrated with a module member of the object is attached to an object-side grommet mounting portion such as a vehicle door.