JPH0781408A - Door construction for automobile - Google Patents

Abstract

PURPOSE:To remarkably improve assembling workability due to effective curtailment of the number of parts and simplify the construction within a door panel while improving supporting rigidity and strength of the parts by forming an end face forming wall, fitting parts of respective parts, and the like in one body with a door outer panel, and enabling a door trim to serve as a door inner panel. CONSTITUTION:This door construction of an automobile is provided with a door outer panel 3 in which the fitting parts 14, 17, 22, 26 of respective parts 13, 15, 16, 21, 25 to be fitted in a door panel main body 2 are provided on the inner face side in the vehicle width direction, an end face forming wall 3a formed into a wall-shape is provided on the peripheral edge part, and the fitting parts and the end face forming wall are formed in one body with the panel 3 by casting, and it is provided with a door trim panel 4 supported with the end face forming wall 3a and formed into a bag-shaped door panel main body 2 together with the door outer panel 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile door structure formed by casting a door outer panel.

[0002]

2. Description of the Related Art Generally, in an automobile door structure,
A door panel is formed by a door inner panel and a door outer panel, and the door inner panel and the door outer panel are each formed by a wrought material obtained by pressing a metal material. A door trim is attached to the inner side of the door inner panel.

In contrast, 1993 SAE INTERNATI
ONAL CONGRESS AND EXPOSITION “Design and Development of Paper No. 930413” dated March 2, 1993.
“A Magnesium / Aluminum Door Frame” describes a door frame formed by casting using a light alloy material such as magnesium or aluminum. And the said door frame is applied as a door inner panel of a door panel.

By the way, in the case where the door inner panel and the door outer panel are both made of wrought material, in order to secure the surface texture of the door outer panel,
Each of the door inner panels is provided with a mounting portion of a component such as a window regulator or a door lock device that is mounted inside the door panel. In that case, the door trim is formed of a metal core material and a skin material adhered to the inner surface of the core material so that the core material also serves as a door inner panel, and the outer surface of the core material is There is one in which parts are attached on the side (see Japanese Utility Model Laid-Open No. 3-53306). The core material is joined and fixed to the peripheral portion of the door outer panel, and is fastened and fixed to a peripheral frame as a wall-shaped end face forming wall protruding inward in the vehicle width direction.

[0005]

However, in the case where parts are attached to the outer surface side of the core material of the door trim as described above,
Since a peripheral frame required for attaching the door trim to the door outer panel and a mounting bracket for attaching parts to the outer surface of the core material are required separately, the number of parts increases and assembly work becomes poor. .

Further, since the core material itself is formed into a thin panel shape, the supporting rigidity strength for supporting heavy parts is insufficient.

Further, if a separate mounting bracket or the like is provided on the outer surface side of the core material as described above, the structure inside the door panel becomes very complicated.

The present invention has been made in view of the above points, and its object is to focus on the inner panel formed by the above-mentioned casting, and the peripheral frame, the mounting bracket and the like are integrally formed with the door outer panel. In addition to enabling the inner panel to function as a door trim, the assembly workability is greatly improved by effectively reducing the number of parts, and the support rigidity strength when supporting heavy parts is improved. At the same time, it is intended to simplify the structure inside the door panel.

[0009]

In order to achieve the above-mentioned object, a solution means provided by the invention as claimed in claim 1 is as a door structure of an automobile, in which a mounting portion of a component mounted in a door panel is an inner surface side in a vehicle width direction. And has an end face forming wall formed in a wall shape so that the end face at the peripheral edge portion projects inward in the vehicle width direction, and the mounting portion and the end face forming wall are integrally formed by casting. And a door trim panel that is supported by the end face forming wall and that forms a bag-shaped door panel together with the door outer panel.

Further, a solution means taken by the invention of claim 2 is that the door outer panel of the invention of claim 1 is specified and is made of a light alloy material.

[0011]

With the above construction, in the invention according to claim 1,
Due to the door outer panel formed by casting, the mounting portion of the component on the inner side in the vehicle width direction and the wall-shaped end face forming wall with the end face protruding inward in the vehicle width direction at the peripheral edge are integrally formed together with the door outer panel. Because it is molded
It is possible to reduce the number of parts by eliminating the peripheral frame necessary for mounting the door trim on the door outer panel and the mounting bracket for mounting parts on the outer surface side of the core material. Moreover, the door trim panel, which is supported by the end face forming wall of the door outer panel to form a bag-shaped door panel, also serves as the door inner panel, and the door inner panel can be eliminated.

Further, since the component mounting portion is provided on the inner side in the vehicle width direction of the door outer panel, it is possible to assemble the components to the mounting portion collectively from the inner side in the vehicle width direction of the door outer panel. Become.

Further, the door outer panel formed by casting can form a thick mounting portion according to a heavy component, and can sufficiently secure the supporting rigidity strength when supporting the heavy component. .

Moreover, as described above, since the mounting portion of the component is integrally formed with the door outer panel,
The structure inside the door panel is greatly simplified compared to the case where a separate mounting bracket or the like is provided.

According to the second aspect of the invention, since the door outer panel is made of a light alloy material, the increase in weight of the door panel can be reduced.

[0016]

As described above, according to the automobile door structure of the invention of claim 1, the mounting portion of the component and the end face forming wall are integrally formed with the door outer panel by casting, and the door inner panel is formed by the door trim panel. Since it is also used, it is possible to significantly reduce the number of parts, and in combination with the work of assembling all the parts to the mounting part from the inside of the door outer panel in the vehicle width direction, the workability is greatly improved. be able to. Moreover, it is possible to effectively improve the support rigidity strength of the component by the door outer panel capable of forming the mounting portion corresponding to the component by casting, and the mounting portion of the component integrally molded with the door outer panel The structure can be simplified.

According to the vehicle door structure of the second aspect of the present invention, the weight of the door outer panel made of a light alloy material can be reduced, so that the weight of the door panel can be reduced.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a right side front side door of an automobile using a door structure according to an embodiment of the present invention. The front side door 1 comprises a sashless type door panel body 2. The door panel body 2 is formed into a bag shape by fastening and fixing the door outer panel 3 and the door trim panel 4 at the peripheral edge, and the window W is moved up and down through the opening 5 opening at the upper edge thereof. Has been done.

The door outer panel 3 is formed by casting a molten aluminum alloy in a mold, while the door trim panel 4 is formed of a synthetic resin material. In addition, the outer edge of the door outer panel 3 is formed in a wall shape so that the end surface of the outer door panel 3 projects inward in the vehicle width direction over the entire periphery of the outer edge except the window 5 for raising and lowering the window W. End face forming wall 3a
Are integrally molded.

On the inner side surface of the door outer panel 3 surrounded by the end face forming wall 3a in the vehicle width direction, a plurality of ribs 11, ...
Are arranged in a grid pattern. Guide rails 13 of a window regulator device 12 for raising and lowering a window mounted in the door panel body 2 are provided at the upper left and right positions and the lower left position at substantially the center of the inner surface of the door outer panel 3 in the vehicle width direction.
Guide rail mounting portion 14 for mounting (components), ...
(Mounting part) is provided. Each of the guide rail mounting portions 14 is formed as a thick boss projecting inward in the vehicle width direction so as to substantially match with each of the ribs 11, and is integrally formed with the door outer panel 3. The guide rail 13 has fastening bolts (not shown) inserted through the holes 13b, ... Of the flange pieces 13a, ... Which project laterally (opposite the guide rail 13) from the upper left and right positions and the lower left position, respectively. Each guide rail mounting part 1
4 is fastened and fixed. Further, at the rear upper end position on the inner side surface of the door outer panel 3 in the vehicle width direction, there is provided a vehicle outer side component mounting portion 17 (mounting portion) for mounting the key lock device 15 and the outer handle 16 which are components mounted on the door panel body 2. It is provided. The vehicle exterior component mounting portion 17 bulges inward of the door panel body 1 so that the key lock device 15 and the outer handle 16 can be mounted, and is integrally formed with the door outer panel 3. The key lock device 15 is fitted by way of the key lock device 15 itself from the inside of the door panel body 1, which is fitted through the opening hole 17a that opens at the lower rear end position of the vehicle exterior side component mounting portion 17. The vehicle exterior component mounting portion 17 is fixedly supported at the lower rear end position. On the other hand, the outer handle 16 is mounted on the vehicle outer side component mounting portion by bolt-shaped members 16a, 16a protruding from the outer handle 16 which are inserted through holes 17b, 17b at upper and left positions of the vehicle outer side component mounting portion 17. A fixed support is provided for the left and right positions of the upper part of 17.

To attach a door latch 21 as a component that meshes with a door striker (not shown) of a lock device for locking the front side door 1 at a substantially intermediate position in the vertical direction of the rear end face forming wall 3a. The door latch mounting portion 22 (mounting portion) is provided on the inner surface of the door panel body 2 of the end face forming wall 3a. The door latch 21 is provided below the notch hole 23 and two upper hole portions 24a and 24a provided above the notch hole 23 provided in the end face forming wall 3a so as to be able to mesh with the door striker. A fastening bolt (not shown) inserted through the lower hole portion 24b is used to fasten and fix the door latch mounting portion 22. Further, a door checker mounting portion 26 (mounting portion) for mounting a door checker 25, which is a component for restricting the open position of the front side door 1, is formed at an approximately middle position in the vertical direction of the front end face forming wall 3a. It is provided on the inner surface of the door panel body 2 of the wall 3a. The door checker 25 has a checker arm 25a that interlocks with the opening / closing operation of the door panel body 2, and is a hole portion provided above and below the insertion hole 27 for inserting the checker arm 25a provided in the end face forming wall 3a. Door checker 25 inserted through 28a, 28a
Fastening and fixing to the door checker mounting portion 26 is performed by the stud bolts 25a, 25a protruding further. Further, on the outer surface of the door panel body 2 of the front end face forming wall 3a, a pair of upper and lower hinge constituent members 29, 29 for supporting the front side door 1 in an openable and closable manner with respect to a vehicle body (not shown) are provided. Is formed integrally with the door outer panel 3 over the inner surface side of the.

At the upper and lower positions of the front and rear end portions of the door trim panel 4, there are provided projecting pieces 4a, 4a (only the front end portion side is shown in the figure) projecting inward of the door panel body 2. The protrusion piece 4a is provided with a bolt insertion hole 4b. Bolt insertion holes 31, ... Are provided in the upper and lower positions of the front and rear end face forming walls 3a corresponding to the respective projection pieces 4a, and the front and rear end face forming walls 3a of the front and rear end panel forming walls 3a are outside the door panel body 2 with respect to the respective bolt insertion holes 31. A door trim so that a bag-shaped door panel body 2 is formed together with the door outer panel 3 by inserting a fastening bolt (not shown) inserted from one side into the door panel body 2 through the bolt insertion hole 4b of each projection piece 4a. The panel 4 is fastened and fixed while being supported on the end face forming wall 3a of the door outer panel 3.

An inner handle 32 is provided at the upper front position of the door trim panel 4, and an inner lock device 33 is provided at the upper rear position of the door trim panel 4. Inner handle 3 above
2 is the door latch 21 via the first operating rod 34.
When the inner handle 32 is operated in the door opening direction, the door latch 21 is operated via the first operation rod 34 in a releasing direction in which the door latch 21 does not mesh with the door striker. The operation in the releasing direction in which the door latch 21 is not meshed with the door striker is similarly performed by the operation in the door opening direction by the outer handle 16. On the other hand, the inner lock device 3
3 is the door latch 21 via the second operation rod 35.
The operation of the inner handle 32 in the door opening direction prohibits the operation in the releasing direction in which the door latch 21 is not engaged with the door striker via the second operation rod 34. . This door latch 2
The prohibition of the operation of 1 in the releasing direction where it does not mesh with the door striker can be similarly performed in the locked state by the key lock device 15.

Therefore, in the above-described embodiment, the door outer panel 3 formed by casting is used to mount parts such as the guide rail mounting parts 14, ... In addition, the vehicle outer side component mounting portion 17 at the rear upper end position on the inner side surface in the vehicle width direction projects the end face inward in the vehicle width direction at the peripheral edge, and the mounting portion for components such as the door latch mounting portion 22 and door checker mounting portion 26 Since the wall-shaped end face forming wall 3a having the hinge components 29 and 29 is integrally formed with the door outer panel 3, a peripheral frame (end face forming wall) and a core necessary for attaching the door trim to the door outer panel. The number of parts can be significantly reduced by eliminating the mounting brackets and hinge components for mounting these parts on the outer surface of the material. That. Moreover, the door inner panel is also used by the door trim panel 4 which is supported by the end face forming wall 3a of the door outer panel 3 and forms the bag-shaped door panel body 2, so that the door inner panel can be eliminated. Further, since the mounting portions for the above-mentioned components are provided on the inner surface of the door outer panel 3 in the vehicle width direction, the components can be assembled to the respective mounting portions collectively from the vehicle width direction inner side of the door outer panel 3. It will be.

As a result, the number of parts can be significantly reduced, and the workability of assembling is greatly improved in combination with the work of assembling the parts collectively to the respective mounting portions from the inner side in the vehicle width direction of the door outer panel 3. Can be improved.

Further, the door outer panel 3 formed by casting can form a thick mounting portion, for example, a boss-shaped guide rail mounting portion 14 ... In accordance with a heavy component, and supports the heavy component. It is possible to sufficiently secure the supporting rigidity strength at the time of performing, and effectively improve the supporting rigidity strength of the component.

Moreover, as described above, since the mounting portions of the respective parts are integrally molded with the door outer panel, as compared with the case where a separate mounting bracket or the like is provided,
The structure inside the door panel body 2 is very simple, and the structure inside the door panel can be simplified.

Further, since the door outer panel 3 is formed of a light alloy material such as an aluminum alloy, the weight increase of the door panel body 2 is reduced, and the door panel body 2 is reduced.
The weight can be reduced.

The present invention is not limited to the above embodiment, but includes various other modifications.
For example, the sashless type front side door 1 has been described in the above embodiment, but it goes without saying that the present invention can be applied to a door in which the sash is integrally formed with the door panel body.

In the above embodiment, the door outer panel 3 is made of aluminum alloy. However, it may be made of light alloy material such as magnesium alloy. If so, any metallic material is applied.

Further, in the above embodiment, the door trim panel 4 is made of synthetic resin, but the door trim panel may be made of a relatively soft light alloy material.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a door panel body in a state of being disassembled together with parts.

[Explanation of symbols]

 2 Door panel body (door panel) 3 Door outer panel 3a End surface forming wall 4 Door trim panel 13 Guide rail (part) 14 Guide rail mounting part (mounting part) 15 Key lock device (part) 16 Outer handle (part) 17 Car exterior part mounting part (Mounting part) 21 Door latch (part) 22 Door latch mounting part (mounting part) 25 Door checker (part) 26 Door checker mounting part (mounting part)

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Katsuya Nishiguchi 3-1, Shinchi, Fuchu-cho, Aki-gun, Hiroshima Prefecture Mazda Motor Corporation

Claims (2)

[Claims] 1. A wall-shaped end face formation in which a mounting portion for a component to be mounted in a door panel is provided on an inner surface side in a vehicle width direction, and an end face at a peripheral edge portion projects inward in the vehicle width direction. A door outer panel having a wall, the mounting portion and the end face forming wall being integrally formed by casting;
A door structure for an automobile, comprising: a door trim panel that is supported by the end face forming wall and that forms a bag-like door panel together with the door outer panel. 2. The vehicle door structure according to claim 1, wherein the door outer panel is made of a light alloy material.