JPH11227545A - Water cut-off structure of circuit body installation part for car door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the water cut-off structure of a circuit body installation part for car door capable of improving a workability, reducing the number of parts, and also remarkably improving a water cut-off capability. SOLUTION: In the water cut-off structure of a circuit body installation part for car door, a door circuit body 23 is installed into a grommet 27, the grommet 27 is installed in a grommet fixing groove 26 formed in a side plate part 25 of a door frame 21, a weather strip 28 arranged on the side plate part 25 is fitted closely to the grommet 27, and water cut-off ribs 29, 30, and 31 as water cut-off means which are deformed elastically when they are pressed against the base surface of the weather strip 28 are provided on the close-fitted surfaces of the grommet 27 to the weather strip 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure for a circuit body mounting portion for a vehicle door, and more particularly to a grommet and a weather strip as a circuit body mounting portion for a door circuit body on a side plate portion of a vehicle door frame. Related to the water stop structure.

[0002]

2. Description of the Related Art FIG. 6 shows a waterproof structure of a mounting portion for a circuit body for an automobile door disclosed in Japanese Utility Model Laid-Open No. 6-18097. In FIG. 1, a concave groove 3 is formed in a side plate portion 2 of a door frame 1 of an automobile door, and a synthetic resin fixture 4 is fastened and fixed to the concave groove 3 by a plurality of screws 5. .

[0003] A circuit body 6 is mounted on the fixture 4, and the circuit body 6 is adapted to be led out to a vehicle body (not shown). The attachment 4 is provided with a front waterproof sheet 7 and side waterproof sheets 8, 8. On the front waterproof sheet 7, a weather strip 9 disposed on the side plate 2 is provided.
Are designed to adhere.

As described above, the mounting device 4 is provided with a structure in which the front waterproof sheet 7 is provided to secure the sealing property with the weather strip 9.

[0005]

In the above prior art, in order to ensure the sealing property between the mounting member 4 and the weather strip 9, a concave groove 3 is formed in the side plate portion 2 and the mounting member 4 and the side plate portion are formed. 2 and the front part waterproof sheet 7 are provided.

[0006] However, the above waterproof structure does not always provide sufficient waterproofness, and a gap may occur between the front waterproof sheet 7 and the weather strip 9 due to environmental factors or slight misalignment. There is a problem that water or the like intrudes from the gap to cause a problem.

Further, the provision of the front waterproof sheet 7 has a problem that the number of parts increases and the number of working steps increases.

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention can improve the workability, reduce the number of parts, and improve the water stoppage of a circuit door mounting portion for an automobile door. It is an object to provide a structure.

[0009]

According to a first aspect of the present invention, there is provided a waterproof structure for mounting a circuit body for an automobile door, wherein the door circuit body is mounted on a grommet and a door frame is provided. The grommet is attached to a fixed portion formed on the side plate portion of the vehicle, and the waterproof structure of the automobile door circuit body attaching portion that adheres the weather strip disposed on the side plate portion to the grommet, the grommet with respect to the weather strip The contact surface is provided with water stopping means which is pressed against the base surface of the weather strip and elastically deforms.

[0010] In the above structure, the water blocking structure of the vehicle door circuit body mounting portion is such that the door circuit body is mounted on the grommet, the grommet is mounted on the fixing portion formed on the side plate portion of the door frame, and the grommet is disposed on the side plate portion. The provided weather strip is brought into close contact with the grommet, and a water stopping means which is elastically deformed by being pressed against the base surface of the weather strip is provided on the contact surface of the grommet with the weather strip. By adopting such a waterproof structure,
When the weather strip is disposed on the side plate after the grommet is attached to the fixing portion of the side plate, the base surface of the weather strip presses the water stopping means to elastically deform the water stopping means. Then, the elastically deformed water stopping means is repelled by the restoring force and pushes back the base surface of the weather strip. Therefore, when the grommet is provided with the water stopping means and pressed by the weather strip, there is no gap between the water stopping means and the weather strip, and the water stopping means prevents water or the like from entering the dam. Since it also plays a role and reliably stops water, the water stoppage can be remarkably improved as compared with the conventional water stop structure.

According to a second aspect of the present invention, there is provided a water stopping structure for an automobile door circuit body mounting portion according to the present invention, wherein the water stopping means comprises a vehicle. It is characterized by being inclined from the upper part of the cabin to the lower part so as to gradually approach the outside of the cabin.

[0012] In the above construction, the water stopping means is provided on the grommet so as to be inclined gradually from the upper part of the vehicle compartment to the lower part thereof so as to approach the outside of the vehicle compartment. By providing the water stopping means inclined as described above, even if water or the like intrudes from the contact portion between the contact surface of the grommet and the weather strip, the water is stopped by the water stopping means and the vehicle is stopped by the water stopping means. It is drained out of the room. Therefore, the water stoppage can be improved.

According to a third aspect of the present invention, there is provided a water shutoff structure for an automobile door circuit body mounting portion according to the first or second aspect. The end of the means on the weather strip side is inclined to the outside of the cabin with respect to the contact surface.

In the above configuration, the weather strip side end of the water stopping means is provided so as to fall down to the outside of the cabin with respect to the contact surface of the grommet. By providing the end portion of the water stopping means in such a manner as to be inclined, when the weather strip is pressed and brought into close contact, the water stopping means can be reliably elastically deformed to the outside of the vehicle compartment. Becomes a weir-like body that has fallen to the outside of the vehicle compartment, and even if water or the like enters from the contact portion between the contact surface of the grommet and the weatherstrip, it does not enter the vehicle compartment beyond the water-stopping means. Therefore, the water stoppage can be improved.

According to a fourth aspect of the present invention, there is provided a water shutoff structure for a circuit body mounting portion for an automobile door according to any one of the first to third aspects. At least two or more water means are provided, and the water stopping means closest to the vehicle interior is not exposed from both side portions of the weather strip outside the vehicle interior.

In the above configuration, at least two or more water stopping means are provided, and the water stopping means closest to the vehicle interior is not exposed from both side portions of the weather strip outside the vehicle interior. When the water stopping means is configured in this way, when moisture rises along the water stopping means,
That is, even in the case of steam, there is no intrusion into the vehicle interior. Therefore, the water stoppage can be improved.

According to a fifth aspect of the present invention, there is provided a water stopping structure for an automobile door circuit body mounting portion according to any one of the first to fourth aspects. The water means is characterized in that it is formed in a rib-like shape that rises from the contact surface and gradually tapers.

In the above configuration, the water stopping means is formed in a rib-like shape that protrudes from the contact surface of the grommet and gradually tapers. By forming the water stopping means so as to protrude from the contact surface in this manner, the water stopping means is not only easily elastically deformed, but also requires no complicated work on the waterproof sheet as in the conventional case, and the number of parts is reduced. Is done. Therefore, it is possible to improve the water stopping performance and workability and reduce the number of parts.

According to a sixth aspect of the present invention, there is provided a water stopping structure for an automobile door circuit body mounting portion according to any one of the first to fifth aspects. The close contact position between the water means and the weather strip is substantially coincident with the position of the weather strip mounting surface of the side plate portion.

In the above configuration, the close contact position between the water stopping means and the weather strip is substantially coincident with the position of the weather strip on the side plate. By making the close contact position between the water stopping means and the weather strip substantially coincide with the position of the weather strip disposition surface, an extra bent portion that creates a gap between the water strip and the weather strip is eliminated. Therefore, the water stoppage can be improved.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a vehicle door showing an embodiment of a water stopping structure of a circuit body mounting portion for a vehicle door according to the present invention (circled portions are enlarged perspective views of main parts). Also,
2 is a front view of the grommet mounting portion of FIG. 1, FIG. 3 is a cross-sectional view taken along the line AA of FIG. 1, FIG. 4 is an enlarged cross-sectional view of the water stop rib of FIG. 1, and FIG. FIG.

In FIG. 1, reference numeral 21 denotes a door frame of an automobile door. The door frame 21 has an inner plate 22
The flat harness part 24 of the door circuit body 23 is surface-mounted. Further, a grommet fixing groove 26 (corresponding to a fixing portion described in the claims) recessed in an L shape is formed from the side plate portion 25 of the door frame 21 to the inner plate portion 22 orthogonal to the side plate portion 25. . In the grommet fixing groove 26, a rubber grommet 27 on which the door circuit body 23 is mounted is fixed by known fixing means (for example, fitting of a projection and a hole or pasting). A rubber weather strip 28 is disposed so as to be in close contact with the side plate 25 and the grommet 27.

The grommet 27 is provided as a mounting portion on the side plate portion 25 of the door frame 21.
The base surface 28a of the weather strip 28 as shown in FIG.
A plurality (three in this embodiment, but not limited to this number, but only one) may be provided on the contact surface 27a with respect to the contact surface 27a (see FIG. 3). 29, 30, 31 (corresponding to the water stopping means described in the claims) are provided at equal intervals.

The surface position of the contact surface 27a is adjusted so that the weather strip 28 does not have a sharply bent portion (to prevent a gap) from being formed on the side plate portion 25. Approximately matches.

The water stop ribs 29, 30, 31 are gradually moved from the upper part of the vehicle compartment shown in FIG.
One end portions 29a, 30a, 31a of 30, 31 are inclined so as to approach the outside of the vehicle compartment, and both end portions 31a, 31b of the water stop rib 31 provided most inside the vehicle compartment are connected to the outside of the vehicle compartment of the weather strip 28. It is provided so as not to be exposed from both sides.

That is, even if the other end 31b of the water-stop rib 31 is exposed inside the vehicle compartment as in this embodiment, the one end 31a, both ends 30a and 30b of the water-stop rib 30 and the water-stop rib 29 are provided.
And the other end portion 29b is in close contact with the weather strip 28, so that the water can be reliably stopped.

In addition, as in the case of the water stop rib 30, at least one
It is preferable that one of the grommets 27 be completely adhered to the weather strip 28, and in this embodiment, the temporarily formed grommet 27
Can reliably cope with water vapor entering from the gap between the contact surface 27a and the weather strip 28.

As shown in FIGS. 3 and 4, the water-stop ribs 29, 30, and 31 are formed in a rib shape that protrudes from the contact surface 27a of the grommet 27 and gradually tapers. , 31c fall down to the outside of the vehicle compartment (see FIG. 2) so as to be surely elastically deformed in the direction of the arrow (see FIG. 4, only the tip portion 29c is shown) when the base surface 28a of the weather strip 28 is pressed. .

In the above configuration, the grommet fixing groove 26
When the weather strip 28 is disposed on the grommet 27 attached to and fixed from the base surface 28a side, the water stopping rib 2
As shown in FIG. 5, the weather strips 28 are water-tightly disposed on the contact surface 27 a of the grommet 27 as shown in FIG. 5.

Since the water-stop ribs 29, 30, and 31 are sufficiently small with respect to the weather strip 28, the water-stop ribs 29, 30, and 31 are recessed into the base surface 28a (see FIG. 3) of the weather strip 28. A seal is formed by 28a and the contact surface 27a.

As described above, the grommet 27 is provided with the water-stop ribs 29, 30, and 31 as water-stop means, and the water-stop ribs 29, 30, and 31 press the weather strip 28 against the water-stop structure. By having, there is no gap between the weather strip 28. That is, the elastically deformed water stopping ribs 29, 30, and 31 exert a restoring force that repels the weather strip 28, and always tries to push back the base surface 28a of the weather strip 28.

The water-stop ribs 29, 30, and 31 are inclined and fall down to the outside of the vehicle compartment as described above even if water or the like enters from the contact portion between the contact surface 27a and the weather strip 28. , So that the water can be reliably blocked and drained to the outside of the cabin.

Further, the water stop ribs 29, 30, 31
Since the grommet 27 is provided integrally with the grommet 27, complicated work for the front waterproof sheet 7 (see FIG. 6) as in the related art can be eliminated, workability can be improved, and the number of parts can be reduced.

[0034]

As described above, according to the first aspect of the present invention, the water stopping structure of the vehicle door circuit body mounting portion has the door circuit body mounted on the grommet and the door frame. A grommet is attached to a fixed portion formed on the side plate portion, and a weather strip provided on the side plate portion is brought into close contact with the grommet, and a stopper that is pressed against the base surface of the weather strip and elastically deforms on a contact surface of the grommet with the weather strip. It is structured to provide water means.
By adopting such a water stopping structure, when the weather strip is disposed on the side plate after the grommet is attached to the fixing portion of the side plate, the base surface of the weather strip presses the water stopping means and the water stopping means is provided. Is elastically deformed. And
The elastically deformed water stopping means is repelled by the restoring force and pushes back the base surface of the weather strip. Therefore,
When the grommet is provided with the water stopping means and pressed by the weather strip, there is no gap between the water stopping means and the weather strip, and the water stopping means also functions as a weir against water or the like that enters. As a result, since the water is reliably stopped, there is an effect that the water stoppage can be remarkably improved as compared with the conventional water stop structure.

According to the second aspect of the present invention, the water stopping means is provided on the grommet so as to gradually approach the outside of the cabin from above to below the cabin. By providing the water stopping means inclined as described above, even if water or the like intrudes from the contact portion between the contact surface of the grommet and the weather strip, the water is stopped by the water stopping means and the vehicle is stopped by the water stopping means. It is drained out of the room. Therefore, there is an effect that the water stopping performance can be improved.

According to the third aspect of the present invention, the weather strip side end of the water stopping means is provided so as to fall down to the outside of the cabin with respect to the contact surface of the grommet. By providing the end portion of the water stopping means in such a manner as to be inclined, when the weather strip is pressed and brought into close contact, the water stopping means can be reliably elastically deformed to the outside of the vehicle compartment. Becomes a weir-like body that has fallen to the outside of the vehicle compartment, and even if water or the like enters from the contact portion between the contact surface of the grommet and the weatherstrip, it does not enter the vehicle compartment beyond the water-stopping means. Therefore, there is an effect that the water stopping performance can be improved.

According to the fourth aspect of the present invention, at least two or more water-stopping means are provided, and the water-stopping means closest to the vehicle interior is located on both sides of the weather strip outside the vehicle interior. From being exposed. When the water stopping means is configured in this manner, even when moisture rises through the water stopping means, that is, when water is present, there is no intrusion into the vehicle interior. Therefore, there is an effect that the water stopping performance can be improved.

According to the fifth aspect of the present invention, the water stopping means is formed in the shape of a rib which gradually protrudes from the contact surface of the grommet. By forming the water stopping means so as to protrude from the contact surface in this manner, the water stopping means is not only easily elastically deformed, but also requires no complicated work on the waterproof sheet as in the conventional case, and the number of parts is reduced. Is done. Therefore, there is an effect that it is possible to improve the water stoppage and workability and to reduce the number of parts.

According to the sixth aspect of the present invention, the contact position between the water stopping means and the weather strip substantially coincides with the position of the weather strip on the side plate. As described above, by substantially matching the contact position between the water stopping means and the weather strip to the weather strip disposition surface position, a gap is generated between the weather strip and the weather strip.
Extra bends are eliminated. Therefore, there is an effect that the water stopping performance can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vehicle door showing an embodiment of a water stopping structure of a circuit body mounting portion for a vehicle door according to the present invention (circled portions are enlarged perspective views of main parts).

FIG. 2 is a front view of a grommet mounting portion of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is an enlarged sectional view of a water stop rib of FIG. 1;

FIG. 5 is a sectional view taken along line BB of FIG. 2;

FIG. 6 is a perspective view of a vehicle door showing a water blocking structure of a conventional vehicle door circuit body mounting portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Door frame 22 Inner plate part 23 Door circuit body 24 Flat harness part 25 Side plate part 26 Grommet fixing groove (fixing part) 27 Grommet 27a Adhesion surface 28 Weather strip 28a Base surface 29, 30, 31 Water stop rib (water stopping means) )

Claims (6)

[Claims] An automobile door for mounting a circuit body for a door on a grommet, attaching the grommet to a fixing portion formed on a side plate portion of a door frame, and attaching a weather strip disposed on the side plate portion to the grommet. In the water stopping structure of the circuit body mounting portion, a water stopping means which is elastically deformed by being pressed against a base surface of the weather strip is provided on a contact surface of the grommet with respect to the weather strip. Waterproof structure of mounting part. 2. The water stopping structure for an automobile door circuit body mounting portion according to claim 1, wherein the water stopping means is inclined so as to gradually approach the outside of the vehicle compartment from the upper part of the passenger compartment to the lower part. A waterproof structure for a circuit body mounting portion for an automobile door. 3. The waterproofing structure of a circuit body mounting portion for an automobile door according to claim 1, wherein the weather strip side end of the waterproofing means is provided in the vehicle compartment with respect to the close contact surface. A water-stop structure for a circuit-body mounting portion for an automobile door, wherein the water-stopping structure is inclined outward. 4. The water stopping structure for an automobile door circuit body mounting portion according to claim 1, wherein at least two or more water stopping means are provided, and
A water stopping structure for a circuit body mounting portion for an automobile door, wherein the water stopping means closest to the vehicle interior is not exposed from both side portions of the weather strip outside the vehicle interior. 5. The water stopping structure for a circuit body mounting portion for an automobile door according to claim 1, wherein the water stopping means is formed in a rib shape that protrudes from the contact surface and gradually tapers. A water stopping structure for a mounting portion of a circuit body for an automobile door. 6. The waterproof structure of a circuit body mounting portion for an automobile door according to claim 1, wherein a contact position between the waterproof member and the weather strip is:
A water stopping structure for an automobile door circuit body mounting portion, which substantially coincides with the position of the weather strip mounting surface of the side plate portion.