JP2002225556A - Waterproof structure for vehicle door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof structure for a vehicle door, which makes it possible to secure a waterproof performance while reducing assembling operation man-hours and material costs. SOLUTION: A vehicle door 10 comprises an inner panel 20 and an outer panel 30 assembled together, and auxiliary equipment mounted on the vehicle door. A plurality of work openings 40 are provided on the inner panel, the work openings comprising a work hole for mounting each auxiliary equipment on the vehicle door 10, wherein the work openings 40 are subjected to a barring process so that the opening edge 42 of the opening edge rim 41 forms a projected part 43 projecting toward the outer panel 30. When water, such as rain drops, soaks into a space 44 between the inner panel 20 and the outer panel 30, the projected part 43 changes the falling course of the water, making the water drop below the vehicle door 10 without intruding into the interior side through the work opening 40.

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 an automobile door, which can improve assembling workability and reduce costs.

[0002]

2. Description of the Related Art Generally, an automobile door has the following structure. That is, as shown in FIG.
00 is the inner panel 101 on the indoor side of the car.
And the outer panel 102 on the outside of the vehicle.
As shown in FIG. 7, so-called auxiliary devices such as a power window 103, an electric side mirror 104, a door lock device 105, and a speaker (not shown) are attached. As described above, the inner panel 101 is provided with a plurality of working openings 106 called so-called working holes in order to attach accessories to the car door 100. Using the opening 106, the user attaches each accessory to the inner panel 101 manually.

[0003] However, the automobile door 1 in this state is as it is.
In the case of 00, in the case of rainy weather or during car washing, the moisture that has entered the space between the inner panel 101 and the outer panel 102 of the car door 100 passes through the working opening 106 provided in the inner panel 101 to the vehicle interior. (cabin)
Could enter. For this reason, as shown in FIG.
01 screen sheet 107 for waterproofing
Butyl rubber 1 having low gas permeability and excellent weather resistance
A countermeasure for pasting through the line 08 is taken.

[0004]

However, the work of attaching the screen sheet 107 to the inner panel 101 and waterproofing the room as described above involves applying butyl rubber 108 to a predetermined position of the inner panel 101 and then applying the butyl rubber 108 to the predetermined position. Since this is performed by carefully attaching the screen sheet 107 from above, it is difficult to automate the work, and it is difficult to reduce the number of assembling steps of the automobile door 100. is there.

[0005] The present invention has been made in view of such problems, and can reduce the man-hours for assembling an automobile door, reduce the material cost of a screen sheet, butyl rubber, and the like. It is an object of the present invention to provide a waterproof structure for an automobile door that can ensure the same waterproof performance.

[0006]

A first waterproof structure for a vehicle door according to the present invention is a combination of an inner panel disposed on the vehicle interior side and an outer panel disposed on the vehicle exterior side. A waterproof structure of an automobile door configured, wherein a burring process is performed on an inner processing surface of a working opening provided in the inner panel so as to form a convex portion toward the outer panel side. It is characterized by.

Further, a second waterproof structure for an automobile door according to the present invention is an automobile constructed by combining an inner panel disposed on the vehicle interior side and an outer panel disposed on the vehicle body side of the automobile. A waterproof structure of a door for a vehicle, wherein a resin member molded so as to form a convex portion toward the outer panel side is attached to an inner processing surface of a working opening provided in the inner panel. Features.

According to the present invention, a work opening provided in an inner panel of an automobile door constituted by a combination of an inner panel and an outer panel includes:
A burring process is performed so that the inner processing surface of the opening forms a convex portion toward the outer panel, or a molding is performed on the inner processing surface of the opening to form a convex portion toward the outer panel side. The waterproof structure is realized by attaching the resin member. For this reason, moisture (water droplets) that has entered the space between the inner panel and the outer panel from the upper part of the automobile door hits this convex part and changes the traveling direction toward the outer panel side, and the water enters the lower part of the automobile door. Since the water drops toward the room, it is possible to prevent water from entering the room through the opening. As a result, the cost of material for waterproofing such as screen sheet and butyl rubber, and the number of man-hours of waterproofing work such as the attaching work of the screen sheet can be reduced, and the working cost can be reduced.
It is possible to provide an automobile door having waterproof performance at low cost.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view and a sectional view of an automobile door having a waterproof structure according to one embodiment of the present invention.

[0010] As shown in FIG.
Reference numeral 0 denotes an inner panel 20 disposed on the indoor side of the automobile (not shown) and an outer panel 3 disposed on the outer side of the vehicle.
0, a power window 11 driven up and down by an electric motor (not shown), an electric side mirror 12 opened and closed left and right, a door lock device 13, a lock release operation lever 14 for releasing a lock, and the like. Each of the accessories is attached, and a door weatherstrip 15 for preventing rainwater from entering the interior of the vehicle and outside air and isolating noise and the like is attached at a predetermined position.

The inner panel 2 of the vehicle door 10
In addition to the above-mentioned accessories, a plurality of work openings 40 formed with holes for work are provided on the reference numeral 0 in order to attach the wiring 16 formed of a wire harness and the like, a speaker (not shown), and the like. . FIG. 2B is a cross-sectional view taken along line AA ′ of FIG. 2A. The working opening 40 has a convex portion 43 in which an opening end surface 42 of the opening end peripheral edge portion 41 projects toward the outer panel 30 side. Has been processed to form As a result, moisture such as rainwater that has entered the space 44 between the inner panel 20 and the outer panel 30 from above the automobile door 10 is formed in the working opening 40 as shown by the dotted line in the figure. After the course is changed by the formed convex portion 43, the water drops down to the lower side of the vehicle door 10, so that moisture does not enter the interior of the vehicle through the working opening 40. By forming such protrusions 43 in all the working openings 40 provided in the inner panel 20, it is necessary to attach a screen sheet or the like to the inner panel 20 using a fixing agent such as butyl rubber for waterproofing. Therefore, the cost of materials and work for waterproofing can be reduced, and it is possible to manufacture a low-cost automotive door having waterproof performance.

As a processing method for forming the convex portion 43 in the working opening 40, for example, burring can be used. FIG. 2 is a flowchart showing a manufacturing process of the automobile door, and FIGS. 3 and 4 are diagrams showing a method of forming a working opening used in the manufacturing process.

As shown in FIGS. 2 to 4, first, the inner panel 20 formed by pressing or the like is subjected to mechanical processing such as shearing using a processing head 50 having a predetermined diameter. Forming opening 40 for application is formed (S
1). Next, the working opening 40 formed in step 1
The burring head 51 having a diameter larger than that of the processing head 50 is used to project the opening end face 42 of the inner portion of the opening toward the outer panel side.
0 is subjected to a burring process to form a convex portion 43 (S
2). Then, the working opening 40 in which the convex portion 43 is formed.
Is assembled (S3), and various accessories are attached to the finally assembled inner panel 20 and outer panel 30 to complete the automobile door 10 (S4).

By adopting such a manufacturing process, it is possible to easily manufacture the automobile door 10 having the above-mentioned waterproof structure without introducing a special operation process for imparting waterproof performance to the automobile door. As a result, manufacturing costs can be reduced.

It is to be noted that, for example, the projection 4
Instead of forming burring 3, a convex portion may be formed by the following method so that the automobile door has waterproofness. FIG. 5 is a side view and a sectional view of an automobile door having a waterproof structure according to another embodiment of the present invention. In addition, the part which overlaps with the part already described is omitted.

As shown in FIG.
Reference numeral 0 denotes a configuration in which an inner panel 70 and an outer panel 80 are combined, and a power window 61, an electric side mirror 62, a door lock device 63, a lock release operation lever 64, a door weather strip 65, and the like are mounted at predetermined positions.

The inner panel 7 of the vehicle door 60
In addition to the above-mentioned accessories, a plurality of work openings 90 including holes for work are provided in the unit 0 for attaching the wiring 66, a speaker (not shown), and the like. FIG.
FIG. 3B is a sectional view taken along the line BB ′ of FIG.
A is provided with a resin molded member 94 formed so as to form a convex portion 93 toward the outer panel 80 at the opening end peripheral edge portion 91. This working opening 9
The moisture, such as rainwater, that has entered the space portion 44 from above the automobile door 60 by the convex portion 93 of the resin molded member 94 attached to the outer member 0a has its course changed as shown by the dotted line in the figure. Later, since it falls below the car door 60, it is possible to provide a waterproof property that water does not infiltrate through the working opening 90a into the interior of the car similarly to the waterproof structure described in the above example. It becomes possible. In this case, the cost of manufacturing the resin molded member 94 having the convex portion 93 and attaching it to each of the working openings 90a to 90d is less than the cost of attaching a screen sheet or the like to the inner panel 70 using a fixing agent such as butyl rubber. Can be made inexpensive, so that it is possible to manufacture a low-cost, waterproof waterproof automobile door as in the above example. In FIG. 5A, another working opening 90 is shown.
The illustration of the resin molded member 94 attached to b to 90d is omitted.

[0018]

As described above, according to the present invention,
In the working opening provided in the inner panel of the automobile door constituted by the combination of the inner panel and the outer panel, the inside processing surface of this opening forms a convex portion toward the outer panel side. A waterproof structure in which a burring process is performed or a resin member molded so as to form a convex portion toward the outer panel side is attached to an inner processing surface of the opening is realized. For this reason, moisture (water droplets) that has entered the space between the inner panel and the outer panel from above the car door
Falls on the lower portion of the vehicle door while hitting the convex portion while changing its traveling direction toward the outer panel side, so that it is possible to prevent moisture from entering the room through the opening. As a result, the cost of material for waterproofing such as screen sheet and butyl rubber, and the number of man-hours for waterproofing such as attaching the screen sheet can be reduced, thereby reducing the operating cost. It is possible to provide an automobile door having the following.

[Brief description of the drawings]

FIG. 1 is a side view and a sectional view of an automobile door having a waterproof structure according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a manufacturing process of the vehicle door.

FIG. 3 is a view showing a method of forming a working opening used in the manufacturing process.

FIG. 4 is a view showing a method of forming a working opening used in the manufacturing process.

FIG. 5 is a side view and a sectional view of an automobile door having a waterproof structure according to another embodiment of the present invention.

FIG. 6 is a rear front view of the vehicle door.

FIG. 7 is a side view of an automobile door.

FIG. 8 is a side view illustrating a waterproof structure of a conventional automobile door.

[Explanation of symbols]

10,60,100 ... Automobile doors, 11,61,10
3: Power window, 12, 62, 104: Electric side mirror, 13, 63, 105: Door lock device, 1
4, 64: unlock operation lever, 15, 65: door weather strip, 20, 70, 101: inner panel, 30, 80, 102: outer panel, 40, 9
0, 106: working opening, 41, 91: peripheral edge of opening, 42: opening end face, 43, 93: convex part, 44: space part, 50: processing head, 51: burring head,
94: resin molded member, 107: screen sheet, 10
8. Butyl rubber.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor, Takehisa Ide, 1440, Mukurosaki, Sakura City, Chiba Prefecture Inside Fujikura Sakura Office (72) Inventor, Yasuo Takemura 1440, Musaki, Sakura City, Chiba Prefecture Inside Fujikura Sakura Office, Inc.

Claims (2)

[Claims] 1. A waterproof structure for an automobile door, comprising a combination of an inner panel disposed inside a vehicle and an outer panel disposed outside the vehicle, wherein the waterproof structure is provided on the inner panel. A burring process is performed on the inner processing surface of the working opening to form a convex portion toward the outer panel side. 2. A waterproof structure for an automobile door, comprising a combination of an inner panel disposed on the vehicle interior side and an outer panel disposed on the vehicle body side, wherein the waterproof structure is provided on the inner panel. A waterproof structure for an automobile door, wherein a resin member molded so as to form a convex portion toward the outer panel side is attached to an inner working surface of the working opening.