JPS60234021A - Leakage-stoppage structure of door for automobile - Google Patents

Abstract

PURPOSE:To make water penetrating into a clearance between an inner panel and a door trim preventable from leaking inside a car room so easily and surely, by setting up a filler of highly water absorbable resin in the clearance between the panel and the trim. CONSTITUTION:An outer cover 19a of a door trim 19 wraps up a pad 19b and gets tacked after being turned up to the backside of a hard board material 19c. And, a turnup part 20 of the outer cover 19a is coated with paint type highly water absorbable resin 21 continuously along the turnup part 20. With this constitution, water A penetrating into a clearance B between the door trim 19 of a door D and an inner panel 22 is absorbed by the highly water absorbable resin 21, holding it inside, thus preventing the water A from dropping from the said clearance B. And, simultaneously the highly water absorbable resin 21 expands with water absorption so that the said clearance B is hermetically closed, therefore the water A is prevented from dropping without fail. On the other hand, the resin 21 being expanded with water absorption is naturally dried up in a little while and restored to its original state.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field The present invention relates to a water leakage prevention structure for an automobile door that prevents water such as rainwater from leaking into a vehicle interior.

(B) Prior Art and Problems Conventional water leakage prevention structures for automobile doors include, for example, those shown in FIGS. 1 to 3 (see Japanese Utility Model Application Publication No. 55-22227). 1 in the diagram is the door outer panel,
2 shows the door inner panel. A drain hole 3 is provided at the bottom of the door inner panel 2. The door trim 6 is the skin 6
a, a pad 6b, and a hardboard material 6C, and is fixed to the inside of the door inner panel 2 with a plurality of mounting clips 7. The window glass 8 is sealed by an outer lip 9 fixed to the upper part of the door outer panel 1 and an inner lip 10 fixed to the door inner panel 2, and is guided by a door sash (not shown) so as to be able to move up and down. An embossed portion 11 is formed on the lower outer periphery of the door inner panel 2 so as to protrude outward, and a slit tta is further provided within this embossed portion 11.

A sealing member 1 is attached to the outer surface of the hardboard material 6C of the door trim 6 with respect to the embossed portion 11.
2 has a lip portion 12a that slopes downward, and this lip portion 12a is attached to the door inner panel 2 when the door trim 6 is installed.
It is located within the embossed part 11 formed in the lip part 12a.
The tip of the door protrudes into the door interior space S from the slit 11a.

And if water A such as rainwater enters the door interior space S from a small gap between the outer lip 9 and the window glass 8 [in the figure ↓
] shows intrusion, most of the intruding water A is guided from the drain hole 3 to the side sill 17 and discharged to the outside of the vehicle O, but a portion of it enters the door from around the mounting clip 70 and other slits. It invades the gap B between the inner panel 2 and the hardboard material 6C, falls down along the same gap B, and tries to leak into the passenger compartment R side. However, this water A is also guided into the door interior space S by the lip portion 12a of the sealing member 12 and is discharged to the outside of the vehicle, so that the water A does not leak into the vehicle interior R side.

By the way, in this conventional example, since the alignment of the lip portion 12a with respect to the slit lla is a blind operation, the lip 12
If it is mistaken that water A is inserted into slit lla, water A will leak from the lower end of gap B and leak into the passenger compartment R side. 886
Other water leakage prevention structures have been proposed in Japanese Patent Publication No. 18]. In this conventional example, the lower end portion 16 of a resin door trim 15 that is secured to the door inner panel 13 with a clip (not shown) is bent outward along the lower end corner portion 13a of the door inner panel 13. . That is, it is inserted between the lower end corner portion 13a and the joining flange portion 17a of the side sill 17 without touching either of them. Therefore, even if some of the water A that has entered the interior space S enters the gap B between the door inner panel 13 and the door trim 15 from the attachment point of the clip (not shown) and leaks to the lower end of the door trim, Due to the bent lower end 16 of No. 15, it does not leak into the passenger compartment R side, but is temporarily retained by the weather strip 18 on the side sill 17, and is then discharged to the outside of the vehicle each time the door D is opened. be.

However, in such a conventional water leakage prevention structure of an automobile door, the bent lower end 16 is connected to the lower end corner 13a.
Although it is necessary to attach the door trim 15 to the door inner panel 13 so that the door trim 15 is accurately positioned between the joint flange portion 17a and the joint flange portion 17a, work including such positioning is surprisingly difficult, and furthermore, the lower end portion 16 is deformed downward. When this happens, it will not be possible to insert it between the lower end corner portion 13a and the joining flange portion 17a, and if the positional accuracy of the installation is low, there is a possibility that the water A may leak into the passenger compartment R side.

(C) Purpose This invention has been made by focusing on such conventional technology, and it is possible to penetrate into the gap between the door trim and the door inner panel with a simple work without requiring difficult work, and without having to particularly align the position. The purpose of the present invention is to provide a water leakage prevention structure for an automobile door that can prevent water from leaking into the passenger compartment.

(D) Structure In order to achieve the above object, the water leakage prevention structure for an automobile door according to the present invention has a structure in which a super absorbent resin is arranged in the gap between the inner panel and the door trim.

(e) Examples The present invention will be explained below based on the drawings. Note that, in the following description, descriptions that overlap with those of the prior art will be omitted, and common parts in the embodiments will be given the same reference numerals.

FIG. 5 is a diagram showing an embodiment of the present invention.

The skin 19a of the door trim 19 wraps around the door 19b and is folded back to the back side of the hardboard material 19C and fixed with a tack. In the folded part 20 of this skin 19a,
A paint-type super absorbent resin 21 is continuously coated along the folded portion 20. This super absorbent resin (for example, Sumikagel (trade name) manufactured by Sumitomo Chemical Industries, Ltd.) 21 has the function of absorbing water and expanding in a short time when it comes into contact with water, and retaining the absorbed water. Also, once water has been absorbed, it will not release even if some pressure is applied, but water will be released by natural or forced drying, and eventually it will return to its original state and can be used repeatedly. Furthermore, it is easy to process and can be molded into various shapes, and it also comes in powder form and fiber form, and as in this example, the powder form can also be used as a paint type. It is useful for wealth.

Therefore, the door trim 19 and door inner panel 22 of door D
The water A that has entered the gap B between the two is rapidly absorbed and retained by contacting the super absorbent resin 21, so that the water A does not fall downward from the gap B. At the same time, the superabsorbent resin 21 absorbs water and expands, so it completely closes the gap B between the folded part 20 and the door inner panel 22, and if a large amount of water A exceeds the water absorption capacity of the superabsorbent resin 21, Even if it invades, it can be stopped by this super absorbent resin 21 portion. Further, after a while, the superabsorbent resin 21 which has expanded by absorbing water gradually evaporates water A by natural drying and returns to its original state. In addition, 24 is the Kinoking plate,
The side sill 2 is used to hold down the floor carpet 25 laid on the R side of the vehicle interior and to cover the joint flange portion 26.
7 via a grommet 28 with a clip 29. In addition, conventionally, this kinoking plate 24 has been provided with a slope part inclined toward the outside of the vehicle, or the size of the kinoking plate 24 has been increased, so that the water A that has fallen onto the kinoking plate 24 can be removed from the vehicle. However, in this embodiment, the presence of the super absorbent resin 21 prevents the water A from falling onto the kinoking plate 24, so a small and compact one is used.

FIG. 6 shows another embodiment of the invention.

It is formed into a thin plate shape using fibers, and a bulging part 31a is formed at the lower end of the plate.
The super absorbent resin 31 having the above-mentioned structure is tacked along the folded portion 20 and with the bulging portion 31a extending downward from the gap B. This super absorbent resin 31
Since there is a, it can absorb more water A than the super absorbent resin 21 of the previous example, and the bulging part 3 has a large surface area.
Since the entire area 1a is exposed to air, it dries quickly (and returns to its original state quickly).

Although the above explanation shows an example in which the super absorbent resin 21.31 is placed on the door trim 19 side within the gap B, it may also be placed on the door inner panel 22 side, and the super absorbent resin 21.31 may be placed on the door inner panel 22 side. As long as it is within B, the location is not limited.

(f) Effect: By simply placing a super absorbent resin in the gap between the door trim and door inner panel, which is the route for water to enter, you can ensure that water that has entered the gap does not leak into the passenger compartment, without requiring any work. In addition to being easy to work with, it is possible to use a conventional embossed part on the door inner panel, a sealing member with a specially shaped lip, or a door trim with a bent lower end. There is no need to do this, just place a highly water-absorbent resin in the gap between the door trim and the door inner panel, which simplifies the structure and can be expected to prevent water leakage to a greater degree than in the past. Furthermore, since there is no leakage of rainwater or other water from the lower end of the gap between the door trim and the door inner panel, it is easier to install the Kinoking plate than when installing the Kinoking plate with the position, shape, etc. set in anticipation of leakage, as in the past. It is also possible to increase the degree of freedom in setting and the degree of freedom in shaping.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of an automobile according to a conventional example of the present invention, Fig. 2 is an enlarged cross-sectional view taken along the arrow nn line in Fig. 1, and Fig. 3 is an arrow - FIG. 4 is an enlarged sectional view equivalent to FIG. 2 showing another conventional example, FIG. 5 is an enlarged sectional view equivalent to FIG. 4 showing an embodiment of the present invention, and FIG. The figure is an enlarged sectional view corresponding to FIG. 5 showing another embodiment of the present invention. 2.13.22 - Door inner panel 6.15.19 - Door trim 21.31 ... - Super water absorbent resin A - Water B - Gap D - Door 〇 - Vehicle exterior R - Vehicle interior s - Door Internal space Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A water leakage prevention structure for automobile doors characterized by a super absorbent resin placed in the gap between the inner panel and the door trim.