JP3231643B2 - Waterproof structure for vehicle windows - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure provided on a window glass and a window frame to prevent water from entering through holes through which a wiper drive shaft protrudes outward.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, in a vehicle 1 having a back door 2 such as a conventional hatchback car or van type car, a wiper device 4 is provided for wiping a window glass plate 3 of the back door 2. In many cases, the window glass plate 3
Of the body panel 5 is adhered and fixed to the opening periphery 6 of the body panel 5, through holes 7 and 8 are formed therethrough, and a wiper arm 10 is attached to a wiper drive shaft 9 protruding outward through these. There is something.

That is, the back door 2 comprises an outer panel 11 forming a lower portion of the body panel 5 at the rear of the vehicle 1 and a window portion 12 forming an upper portion, and the outer panel 11 has an inner panel 13 disposed inside thereof. The window 12 is opened in a substantially rectangular shape at the top of the body panel 5, and the opening peripheral portion 6 is recessed by providing a step 14 from the outer surface of the other body panel 5. The bottom of the recess is formed substantially flat. Further, a through hole 7 through which a wiper drive shaft 9 penetrates is formed in the opening peripheral portion 6 near the wiper device 4. Further, the back door reinforcing plate 15 arranged on the inner side of the inner panel 13 has a shape bulging inward near the through hole 7, and is connected to the outer panel 11 above and below. A wiper motor 17 is fixed to the bracket 16, and a wiper drive shaft 9 extending rearward of the vehicle 1 projects outside through a through hole 7 and an insertion hole 8 described later.

On the other hand, the window glass plate 3 is fitted in conformity with the concave opening peripheral portion 6 of the body panel 5, and the window glass plate 3
Is set so that the outer surface thereof is flush with the outer surface of the body panel 5, and the distance between the inner surface 18 of the window glass plate 3 and the opening peripheral portion 6 is maintained at a predetermined value by the interposition of a spacer (not shown). And is fixed to the body panel 5 by an adhesive 19. In this case, the adhesive 19 is applied to the opening peripheral portion 6 inside the through hole 7. Further, an insertion hole 8 through which a wiper drive shaft 9 inserted through the through-hole 7 is inserted into the window glass plate 3 at a position corresponding to the through-hole 7 is inserted. , And the wiper arm 10 is configured to be attached thereto. In this case, a flexible seal boot 20 that blocks moisture, dust and the like is mounted between the insertion hole 8 and the wiper drive shaft 9, and a skirt portion 21 is inserted into the through hole 7.

[0005]

However, in the above-mentioned prior art, the inner surface 18 of the window glass plate 3 and the peripheral portion 6 of the opening in a region outside the adhesive 19 applied to the window glass plate 3 are formed. Between the windows 1
3 and the outer periphery 22 of the window glass plate 3, the water blows into this gap as shown by the arrow in FIG. Penetrates into the interior of the vehicle 1 through a gap with the skirt portion 21;
There are problems such as soiling the inside or rusting other parts.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a vehicle in which the outer periphery of a window glass plate is adhered and fixed to the periphery of an opening of a body panel. A through-hole for projecting the wiper drive shaft so that there is a slight gap between the inner surface of the window glass plate and the periphery of the opening with the through-hole inside.
A bead portion protruding so as to be close to the window glass side, so that the through hole is positioned closer to the window opening than the bead portion.
Characterized in that they are arranged in

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples. The embodiment according to the present invention is almost the same as the above-mentioned prior art except that the configuration of the periphery of the opening is different. Therefore, the description of the same configuration is omitted,
Only different parts will be described. Further, the same structures are denoted by the same reference numerals, and only the different structures are denoted by different reference numerals. FIG. 1 is a cross-sectional view of the vicinity of a mounting portion of a wiper device for a back door according to an embodiment of the present invention, taken along line AA in FIG. 4, and FIG.
FIG. 3 is a cross-sectional view taken along the line B, FIG. 3 is a perspective view showing the state of the arrangement of a bead provided around the opening of the window, and FIG. 4 is a perspective view of a vehicle to which the embodiment is applied.

As shown in FIG. 1 to FIG. 4, the configuration of the opening peripheral portion 6 different from that of the prior art is such that two rows of bead portions 23 are provided at the top of the opening peripheral portion 6 outside the through-hole 7 at the interval between the top portions. The bead portions 25 are formed substantially parallel to the vehicle width direction to be substantially the same as the up-down width of the through-hole 24, and the bead portions 25 which are substantially perpendicular to the bead portion 23 and are vertically continuous are provided on the left and right of the through hole 7. is there. That is, the bead portion 2 having the above-described configuration is formed around the window opening 6 formed in the body panel 5.
3 and 25 are formed, and these bead portions 23 and 25 are arranged such that the through-hole 7 is on the inside, that is, the so-called through-hole 7 is located closer to the window opening than the bead portions 23 and 25. The bead portions 23 and 25 are protruded so as to approach the window glass plate 3 side, and the top portion 24 is formed flat, so that a slight gap exists between the top portion 24 and the inner surface 18 of the window glass plate 3. Is formed. The upper end of the bead portion 25 in the up-down direction is formed to extend to the position where the adhesive 19 is applied, the end is covered with the adhesive 19, and the lower end is
It is formed to extend downward until it passes the bead portion 23 of the row. In this embodiment, an example in which the bead portions 23 and 25 surround the vicinity of the through hole 7 has been described.
In another application, the bead portion 23 is formed all around the window opening, so that the through-hole 7 can also be implemented in a substantially enclosed manner.

Since the window portion 12 is configured as described above, the window glass plate 3 and the opening peripheral portion 6 pass through the gap between the outer peripheral portion 22 of the window glass plate 3 and the step 14 of the window portion 13. And the like is suppressed by the bead portions 23 and 25, and the labyrinth sealing effect is provided by the small gap between the tops 24 of the two rows of bead portions 23, especially against rebounding water of strong water force from below. Inundation is prevented. Further, since the bead portions 23 and 25 are set around the through hole 7, the effect of improving the rigidity of the back door 2 can be obtained.

[0010]

According to the present invention, the following effects can be obtained. A through hole is formed in the window glass plate and the periphery of the opening to penetrate the window glass plate and project the wiper drive shaft, and a bead portion protruding near the window glass plate is formed around the opening in a region having the through hole inside. Is formed, a small gap between the bead portion and the window glass plate causes a labyrinth sealing effect, and it is possible to prevent water from entering from outside. This eliminates the need for a dedicated component for waterproofing, and allows a simple structure in which a bead portion is formed on the body panel to form the waterproof structure of the window portion at low cost. Further, since the bead portion is formed around the opening of the body panel, the rigidity of the body panel can be improved, and the effect of reducing the size and weight and reducing noise can be obtained. Further, since the window glass plate is bonded and fixed to the periphery of the opening, the distance from the opening end of the window to the bonding and fixing position is short, and an object is erroneously inserted into the gap even at the upward opening end of the lower window. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a view of a window portion of a back door according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along line AA of FIG.

FIG. 2 is a cross-sectional view along the line BB.

FIG. 3 is a perspective view of a main part showing a state of arrangement of a bead portion provided around an opening according to the embodiment of the present invention.

FIG. 4 is a perspective view of a vehicle to which the embodiment according to the present invention is applied.

FIG. 5 is a perspective view of a vehicle to which an embodiment according to the related art is applied.

FIG. 6 is a cross-sectional view of the window portion of the back door of the embodiment according to the prior art, taken along line CC in FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Window glass plate 4 Body panel 6 Peripheral part of opening 7 Through-hole 9 Wiper drive shaft 23, 25 Bead part

Claims (1)

(57) [Claims] 1. A vehicle in which an outer peripheral portion of a window glass plate is adhered and fixed to a peripheral portion of an opening of a body panel so as to penetrate both the window glass plate and the peripheral portion of the opening to project a wiper drive shaft. A hole is formed, and a small area is formed between the through hole and the inner surface of the window glass plate around the opening in the area inside the through hole.
Form a bead that protrudes close to the window glass side so that there is a kana gap , and the through hole is larger than the bead
A waterproof structure for a window portion of a vehicle, wherein the waterproof structure is arranged so as to be located on a window opening side .