JPH0712786B2 - Car door structure - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door structure such as a front door of a passenger car.

(Prior Art) Conventionally, as a vehicle door structure of the above-mentioned example, there is, for example, a device described in Japanese Utility Model Publication No. 56-163015.

That is, it is a door structure in which both the inner panel and the outer panel are both made of synthetic resin, and the front end, the lower end and the rear end of the inner panel and the outer panel are respectively polymer-bonded.

This conventional door structure has the advantage of being able to reduce the weight and improve the appearance of the door body, but on the other hand, the rigidity of the door body itself and the mounting rigidity of the functional components in the inner panel are weak, and the inner panel described above is also used. Further, since the outer panel has a structure that does not have an opening that covers the entire surface below the belt line, there is a problem in that workability of assembling functional parts such as a window regulator and a hinge to the inner panel is poor.

Further, a guide member having a U-shaped cross section for guiding the up and down movement of the window glass needs to be attached to the space between the outer panel and the inner panel described above. Since the guide member is mounted via the guide member, the supporting rigidity of the guide member is weak and the assembling accuracy is not sufficient. Therefore, there has been a problem that the positional accuracy of the guide member must be readjusted after assembling.

(Object of the Invention) According to the present invention, the rigidity of the door body itself and the mounting rigidity of the functional component on the inner panel can be improved without deteriorating the appearance of the door, and the workability of assembling the functional component is also improved. An object of the present invention is to provide a vehicle door structure which is good and can be mounted with high precision and a high support rigidity of a guide member for guiding up and down of a windshield.

(Structure of the Invention) The present invention relates to an inner panel to which functional parts are attached,
An outer panel having an opening formed in a central portion thereof, wherein the front end, the lower end and the rear end of the inner panel and the outer panel are respectively polymer-bonded, and the peripheral edge of the opening of the outer panel is bonded to the inner panel. At least the front and rear side edges of the body are formed into a closed cross section, and the outer surface of the outer panel is covered with a synthetic resin outer plate,
Furthermore, the vehicle door structure is characterized in that a mounting seat to which a guide member for guiding the up and down movement of the windshield is mounted is formed at the front edge portion and the rear edge portion of the outer panel.

(Effect of the Invention) According to the present invention, at least the front and rear side edges of the door body described above are formed into a skeleton structure with a closed cross section, so that there is an effect that the rigidity of the door body itself can be improved.

Further, the inner panel and the outer panel described above are formed, for example, by pressing a rigid plate, and the functional component is attached to the inner panel, so that the mounting rigidity of the functional component can be improved.

Further, since the above-mentioned opening is formed in the center of the outer panel and the functional component can be assembled to the inner panel through the opening, the workability of assembling the functional component can be improved. There is an effect that can be done.

Moreover, since the outer surface of the outer panel is covered with the synthetic resin outer plate, the outer appearance of the door body is not impaired.

Moreover, the above-mentioned guide member for guiding the windshield is
For example, a rigid plate is attached to and supported by mounting seats at the front and rear edges of the outer panel formed by press molding,
Since the support rigidity of the guide member can be improved and the assembling accuracy is high, it is not necessary to readjust after assembling as in the conventional case.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawings show the door structure of an automobile, and are shown in FIGS. 1, 2, and 3.
In the figure, a door body 1 includes an inner panel 2 made of a rigid plate formed by press working, and the inner panel 2
A door lock device 3, a window regulator 4, door hinges 5, 5 as functional parts attached to the outer panel 7, an outer panel 7 made of a rigid plate formed by press working, and having an opening 6 formed in the center, and the outer panel 7. And the pair of front and rear guide members to be attached to
Windshield 9 that can be moved up and down by 8, 8 and corresponds to the flash surface, and the outer panel 7 described above.
Reinforcement 10 and outer panel 7
An outer plate 11 made of synthetic resin for covering the outer surface of the outer plate 11, an outer handle 13 attached to the angular opening 12 of the outer plate 11, and the outer plate 11 described above.
And a key cylinder 15 attached to the round opening 14 of the.

In the inner panel 2 described above, the front end portion, the lower end portion, and the rear end portion of the panel main body 16 are integrally formed with the front end 17, the lower end 18, and the rear end 19, which are bent toward the outer side, respectively, and the belt line portion 20.
The upper edge portion 21 extending in the front-rear direction is integrally bent toward the outer side.

In addition, a substantially gate-shaped sash 22 is provided above the inner panel 2 described above.
Are integrally formed.

The outer panel 7 described above is provided with the opening 6 as a panel main body.
A front end 24, a lower end 25, and a rear end 26 that are bent outward respectively are integrally formed at the front end, the lower end, and the rear end of the peripheral portion 23 of the belt line part 20, and an upper edge 27 that extends in the front-rear direction is provided on the belt line part 20. As shown in FIG. 8, the upper edge portion 27 is integrally formed so as to be bent so as to be located inside the door with respect to the lifting line 28 of the windshield 9.

In addition, a substantially gate-shaped sash 29 is provided on the outer panel 7 described above.
Are integrally formed.

The inner panel 2 and the outer panel 7 thus configured
And are joined as shown in FIGS. 2, 4, and 8.

That is, the front end 17 of the inner panel 2 and the outer panel 7
The front end 24 of the inner panel 2 is polymer-bonded to the lower end 18 of the inner panel 2,
The lower end 25 of the outer panel 7 is polymer-bonded, the rear end 19 of the inner panel 2 and the rear end 26 of the outer panel 7 are polymer-bonded, and the peripheral edge portion 23 of the opening 6 of the outer panel 7 is the panel main body of the inner panel 2. The door body 1 is joined to 16 to form closed cross sections 30, 31, 32 at the front edge, the lower edge and the rear edge of the door body 1, respectively.

The upper edge portion 21 of the inner panel 2 and the upper edge portion 27 of the bent outer panel 7 are joined to each other to extend in the front-rear direction of the door at the belt line portion 20 and to the front edge and the rear edge of the door. It forms a closed cross section 33 connecting the edges.

Further, the sash 22 of the inner panel 2 and the sash 29 of the outer panel 7 are joined to each other to form a substantially gate-shaped closed section 34.

Here, at the outer ends of the closed cross sections 30, 31, 32 of the front edge portion, the lower edge portion, and the rear edge portion, respectively, the inner panel 2 is pinched by the outer panel 7 in a wound manner, and the hemming portion 35, Forming 36,37.

By the way, the lower ends 18 and 25 of the inner panel 2 and the outer panel 7, which form the closed cross section 31 of the lower edge portion, are configured as follows.

That is, as shown in FIG. 8, a hole for mounting the grommet 38, 39 is formed on each of the lower ends 18, 25 described above, and before the grommet 38, 39 is mounted, the inside of the closed cross-section 31 is painted. In addition to improving the rust prevention effect, the above-mentioned holes are sealed by grommets 38, 39 at the final line.

In the structure of the lower ends 18 and 25 described above, the flange portion 41 of the lower end 25 on the outer panel 7 side is longer than the flange portion 40 of the lower end 18 on the inner panel 2 side, and the flange portion 41 is L-shaped. It is bent into a shape to improve the sealing performance.

Further, a seal member 43 such as a weather strip that contacts the side sill 42 is integrally joined to the lower surface of the lower end 18 on the inner panel 2 side.

A plurality of service holes 44 ... Are provided in the panel main body 16 of the inner panel 2 described above.

As shown in FIG. 5, a hinge reinforcement 45 is arranged so as to cross the closed section 30 in the front edge portion, that is, in the closed section 30 on the door hinge side.

In this embodiment, the hinge reinforcement 45 described above is used.
Is welded and fixed to the front end 17 of the inner panel 2 as a closed cross-section structure.

Then, the door hinge 5 described above is inserted into the overlapping portion of the hinge reinforcement 45 and the front end 17 through the set bolt 46.
Is installed.

The door hinge 5 includes a hinge mail 47, a hinge female 48, and a hinge pin 49 for pivotally connecting the mails 47, 48.
It has and.

By the way, the above-mentioned trailing edge portion, that is, the closed cross section 32 on the door lock side.
As shown in FIG. 6, the door lock device 3 and the main body of the key cylinder 15 are provided therein.

A service hole for lock insertion is formed at an upper and lower position offset from the mounting portion of the door lock device 3 described above, and the door lock device 3 is mounted from this service hole.

In addition, the insertion space of the operation rod 50 that connects the door lock device 3 and the inner handle (not shown) is
As shown in the figure, it is formed at the joint between the inner panel 2 and the outer panel 7.

That is, as shown in FIG. 7, a part of the mating portion of each of the panels 2 and 7 described above is bulged in an arc shape to form bulged portions 51 and 52, and the operating rod 50 is placed between these bulged portions 51 and 52. After forming the insertion space 53 of and inserting the operation rod 50 into this space 53,
A grommet 54 for sealing is inserted to close the gap.

By closing the above-mentioned gap with the grommet 54 in this way, it is possible to improve the sealing property for preventing the intrusion of water and dust into the closed cross section 32, and at the time of sliding the operation rod 50 when opening and closing the door. We are trying to reduce the abnormal noise.

Closed cross section 30, 32 on the door hinge side and door lock side
Front end of the outer panel 7 as a closed cross-section structure forming the
24 and the rear end 26 form the mounting seats 55, 55 by lowering the panel 7 toward the inner panel side and bending it in an L shape.

Then, as shown in FIG. 4, guide members 8 and 8 having a U-shaped cross section are fixed to the respective mounting seats 55 and 55 with screws, and the pair of front and rear guide members 8 and 8 are used to wind. It is configured to guide the raising and lowering of the glass 9.

Further, on the outer side of each of the above-mentioned mounting seats 55, 55, the reinforcements are attached to the front end 24 and the rear end 26 of the outer panel 7.
Seats 56, 56 for mounting 10 are formed, and the reinforcement 10 is stretched between these seats 56, 56 by welding means.

The above-mentioned reinforcement 10 is formed by joining a flat plate 57 and a concavo-convex plate 58 as shown in FIG. 3, FIG. 4 and FIG. Predetermined portions of the outer panel 7 as a closed cross-section structure that extends and forms the front and rear closed cross sections 30, 32 are connected to each other.

The inner surface of the outer plate 11 that covers the outer surface of the outer panel 7 corresponds to the upper and lower sides of the uneven plate 58 described above, and FIGS.
Reinforcement ribs 59,5 protruding inward as shown in the figure
9 is integrally formed of synthetic resin.

These reinforcing ribs 59, 59 are the same as the reinforcement 10 described above.
Upper and lower surface portions, more specifically, ribs extending in the front-rear direction of the door corresponding to the upper and lower locking portions of the uneven plate 58, and when the outer plate 11 is attached to the outer surface of the outer panel 7, the upper and lower reinforcing ribs.
By locking 59 and 59 to the upper and lower surface portions of the above-mentioned reinforcement 10, the outer plate 11 is temporarily stored, that is, temporarily fixed.

After the temporary deposit, the outer plate 11 is integrally fixed to the outer surface of the outer panel 7 by an adhesive means.
If necessary, a plurality of places may be fixed with screws.

Since at least the front and rear side edges of the door body 1 are formed in the skeleton structure having the closed cross sections 30 and 32 as described above, the rigidity of the door body 1 itself can be improved.

Further, as shown in the embodiment, the closed cross section 30,3 is formed at the above-mentioned front and rear side edges.
If the lower edge portion is also formed to have a closed cross-section 31 structure together with 2, the strength of the lower edge of the door facing the side sill 42 is improved, and it is possible to prevent the door from entering at the time of a side collision.

Further, the inner panel 2 and the outer panel 7 described above are formed, for example, by pressing a rigid plate to form the inner panel 2 and the outer panel 7.
Since the window regulator 4, the door hinges 5, 5 and the like as the functional parts are attached to the above, there is an effect that the mounting rigidity of the functional parts can be improved.

Furthermore, an opening 6 is formed in the central portion of the outer panel 7 described above, and the inner panel 2 described above is formed through the opening 6.
Since functional parts can be assembled from the outside of the car,
There is an effect that the workability of assembling the functional parts can be improved.

In addition, since the outer plate 11 made of synthetic resin is adhesively fixed to the outer surface of the outer panel 7 and the opening is covered with the outer plate 11, the outer appearance of the door body 1 is not damaged. .

Needless to say, a door trim (not shown) is lined on the inner surface of the inner panel 2 described above.

Moreover, since the mounting seats 55, 55 for mounting the guide member 8 for guiding the up and down movement of the window glass 9 are formed at the front edge portion and the rear edge portion of the outer panel 7 described above,
8, 8 can be mounted and supported by the above-mentioned mounting seats 55, 55 which are molded with high precision by pressing a rigid plate, for example.

As a result, the support rigidity of the guide members 8, 8 can be improved, and at the same time, the assembling accuracy becomes high, so that it is not necessary to readjust after assembling the guide members as in the conventional example.

Further, when the above-mentioned mounting seats 55, 55 are formed by lowering the outer panel 7 to the inner panel 2 side, the strength of these mounting seats 55, 55 is further improved and the guide member is formed.
This has the effect of improving the workability of installing the 8 and 8.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is an external perspective view showing a door structure of an automobile, Fig. 2 is a perspective view of a door body with an outer plate removed, and Fig. 3 is a door body. Fig. 4 is an exploded perspective view, Fig. 4 is a sectional view taken along the line IV-IV in Fig. 1, Fig. 5 is a sectional view taken along the line VV in Fig. 1, and Fig. 6 is a line VI-VI in Fig. 1. 7 is a sectional view taken along the line VII-VII in FIG. 6, and FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 1 ... Door body, 2 ... Inner panel, 4 ... Window regulator, 6 ... Opening, 7 ... Outer panel, 8 ... Guide member, 9 ... Wind glass, 11 ... Outer plate, 23 ... Opening peripheral edge Part 30, 32 ...... Closed section, 55 ...... Mounting seat

Claims (2)

[Claims] 1. An inner panel to which functional parts are attached,
A vehicle door structure comprising an outer panel having an opening formed in a central portion thereof, wherein the front end, the lower end and the rear end of the inner panel and the outer panel are respectively polymer-bonded, and the peripheral edge of the opening of the outer panel is provided. At least the front and rear side edges of the door body are joined to the inner panel to form a closed cross section, the outer surface of the outer panel is covered with a synthetic resin outer plate, and the front and rear edges of the outer panel are further covered. A door structure for an automobile, in which a mounting seat to which a guide member for guiding the lifting and lowering of the windshield is mounted is formed in the section. 2. The door structure for an automobile according to claim 1, wherein the mounting seat is formed by lowering the outer panel toward the inner panel.