JPH048249B2 - - Google Patents

Abstract

PURPOSE:To enhance the variety and assembling ability of a door, by forming side wall sections integrally with synthetic resin outer panel and metal inner panel with being projected therefrom, by enabling them to be fitted together and by attaching door hinges and a lock device to both side walls, respectively. CONSTITUTION:A door checker which is not shown, a guide rail 19, a guide rail 20, a motor 22, a door lock device 24, etc. are attached to an inner panel 2, and the side wall section of an outer panel 1 and the side wall of the inner panel 2 are fitted together and then are fastened together by means of screws. Then, a pair of upper and lower hinges 12 are inserted through an opening 7 in the side wall section 1a of the outer panel 1 and are fastened to the side wall section 2a of the inner panel 2. Further, an outside handle 12 is attached to the outer panel 1. Then, a trim member 3, a seal member 5, a window glass pane 4, etc. are attached to the outer panel 1. With this arrangement, it is possible to enhance the variety and assembling ability thereof.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to automobile doors.

(Prior art) In the past, automobile doors generally had a structure that combined an ulta panel made of a steel plate and an inner panel made of a steel plate, but in recent years, doors made of synthetic resin have been used especially due to the demands for weight reduction and design of automobiles. Various proposals have been made.

For example, Japanese Utility Model Application Publication No. 56-124015 describes a plastic door for a vehicle in which an ulta panel and an inner panel are blow molded.

By the way, when the alternator panel and the inner panel are integrally molded from a synthetic resin material as in the plastic vehicle door described above, the following problem occurs.

The first problem is that the coefficient of thermal expansion of synthetic resin materials is extremely large, about 10 times that of steel, so the window glass sliding mechanism built into the door is affected by the thermal expansion or contraction of the door. Various parts used for conventional steel doors cannot be used because there is a risk that door locks and door lock devices may not function properly, and the mounting structure of each part to the synthetic resin panel will change. There is a risk that it will disappear.

The second problem is that synthetic resin materials, except for special expensive ones, are generally inferior to steel in terms of strength and rigidity, so if you increase the wall thickness by that much, not only will it be almost impossible to reduce the weight. In order to ensure the rigidity of door panels, it is necessary to incorporate steel reinforcing members, and to provide some kind of strength to parts that are subject to local loads, such as door hinges and door lock device attachment points, so the manufacturing process of door panels has also changed. It cannot be simplified.

The third problem is that even a slight change in the body line of the car, such as during a minor model change, will affect the entire door, which is disadvantageous in terms of variation development.

The fourth problem is that, like conventional steel doors, various parts must be assembled into the space between the outer panel and the inner panel, making it difficult to improve the door assembly process.

(Object of the Invention) The present invention has been made in order to solve the above-mentioned problems.It is an object of the present invention to provide an automobile door that has excellent pariation development, can be used without changing various parts, and is easy to assemble. purpose.

(Structure of the Invention) An automobile door according to the present invention includes a door body consisting of an outer panel made of synthetic resin and an inner panel made of steel plate, and the inner surface of the outer panel on the passenger compartment side has portions near the front and rear edges and the lower edge. A side wall portion protruding toward the vehicle interior along the front and rear edges of the inner panel is integrally formed, and a side wall portion that protrudes toward the outside of the vehicle interior and fits inside the front and rear side walls of the outer panel is integrally formed with the front and rear edges of the inner panel. A door hinge is attached to one side wall of the inner panel, and a door lock device is attached to the other side wall.

(Effects of the Invention) As described above, in the automobile door of the present invention, the outer panel is made of synthetic resin, the inner panel is made of steel plate, and the front and rear side walls of the inner panel are fitted inside the front and rear side walls of the outer panel. As a result, both panels can be joined by assembling various parts to the inner panel, then assembling both panels, and joining the side wall portions of both panels.
Since the side wall of the inner panel made of steel plate is covered with the side wall of the outer panel made of synthetic resin, the side wall of the inner panel is not exposed to rainwater, and the occurrence of rust on the side wall of the inner panel is effectively prevented. Ru. Moreover, since the side wall portion of the steel inner panel is fitted inside the side wall portion of the synthetic resin outer panel, the rigidity and strength of these side wall portions and the joint structure between the outer panel and the inner panel are sufficiently strong. Further, since the side wall portion of the outer panel is integrally formed with the outer panel, the structure of the outer panel is simplified and the number of parts is reduced.

In this way, the door assembly work can be extremely simplified, and since the inner panel to which various parts are assembled is made of steel plate as before, the various parts used in the past can be used without changing.

Furthermore, since the outer panel and the inner panel can be connected via the side wall as described above, even if the body line of the car changes slightly, such as during a minor model change, the inner panel and various parts can be used in common without changing. , which is extremely advantageous in terms of variation development.

In addition, since the door hinges and door lock devices are attached to the side walls of the steel inner panel, the necessary strength and rigidity can be ensured, and the outer panel has special attachment parts or reinforcements for them. Since the structure of the outer panel is simplified and it is easier to manufacture it, there is no need to do so.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

As shown in the exploded perspective view of FIG. 1 and the overall perspective view of FIG. It consists of various accessories, etc.

The outer panel 1 is made of synthetic resin such as polyvinyl chloride resin (PVC), polypropylene (PP), polyethylene (PE), or ABS resin, and has a front edge, a rear edge and A side wall portion 1a that protrudes toward the interior of the vehicle along the vicinity of the lower edge is continuously and integrally formed.

A stepped portion 6 to which a sealing member 5 is attached is provided at the middle portion of the outer circumferential side of the side wall portion 1a, and openings 7 for inserting the door hinge 8 are provided at two upper and lower locations of the side wall portion 1a along the vicinity of the front edge of the outer panel 1. An opening 10 for inserting the door checker 9 is formed in the center thereof, and a bulge 11 projecting rearward in the shape of a trapezoidal mountain is provided in the center of the side wall along the vicinity of the rear edge of the outer panel 1. ing.

In addition, code 12 is an outside handle, code 1
Reference numeral 3 denotes a handle attachment portion to which the outside handle 12 is attached from the outside, and reference numeral 14 denotes a regulating device for regulating the position of the outside surface of the window glass 4.

The inner panel 2 is made of a steel plate, and has side wall portions 2a on its front edge, rear edge, and lower edge that protrude toward the outside of the vehicle interior.
A side wall portion 2a that fits inside the side wall portion 1a of the outer panel 1 is continuously and integrally formed.

A pair of screw holes 15 for attaching a door hinge 8 are provided at the upper and lower positions of the side wall 2a at the front edge of the inner panel 2 at positions corresponding to the opening 7, and at the center of the side wall 2a. The above opening 10
A pair of screw holes 16 for attaching the door checker 9 are provided at positions corresponding to the door checker 9.

Incidentally, reference numeral 17 indicates reinforcing portions formed in the shape of oblique walls to increase the rigidity of the side wall portion 2a, and are provided at appropriate intervals along the entire length of the side wall portion 2a.

A pair of guide rails 19 for guiding a pair of guide fittings 18 fixed to the front and rear of the lower end of the window glass 4 are fixed to the outer surface of the inner panel 2 with a pair of screws, respectively, and A guide rail 20 for the lifting device is screwed to the outer surface of the inner panel 2, and a carriage 21 guided by this guide rail 20 is fixed to the center of the lower end of the window glass 4.
A motor 22 that drives the inner panel 1 up and down is fixed to the outer surface of the inner panel 2 via a wire.

At the center of the side wall 2a at the rear edge of the inner panel 2, there is a bulge 23 that fits into the bulge 11 provided on the side wall 1a near the rear edge of the outer panel 1.
is formed, and the door lock device 2 is attached to this bulge 23.
4 is installed.

Next, regarding the structure for installing the door hinge 8,
This will be explained with reference to FIGS. 3 and 4.

In the state where the outer panel 1 and the inner panel 2 are combined, the side wall portion 2 of the inner panel 2
a fits inside the side wall portion 1a of the outer panel 1, and both side wall portions 1a and 2a are connected along the entire length with screws 25 at appropriate intervals. They can also be combined by other means. Then, the trim member 3 is placed on the inner surface of the inner panel 2 on the vehicle interior side and fixed with a fastener 26 or the like.

The door hinge 8 is the side wall portion 1 of the outer panel 1.
A movable hinge metal fitting 8a that is inserted through the opening 7 of the inner panel 2 and fixed to the side wall 2a of the inner panel 2 with a pair of upper and lower screws 27, and the movable side hinge metal fitting 8a.
The fixed side hinge fitting 8b is connected to the fixed side hinge fitting 8b through a pin 8c whose tip end is vertically oriented so as to be relatively swingable, and the fixed side hinge fitting 8b is fixed to the pillar 28 of the automobile body with a bolt 29, and the above-mentioned A nut 27a for fixing the movable hinge fitting 8a is fixed in advance to the inside of the side wall portion 2a of the inner panel 2.

Of course, the structure of the door hinge 8 is not limited to the one described above, and various existing door hinges 8 can be used, but in short, the movable hinge metal fitting 8a of the door hinge 8 is inserted through the opening 7 of the outer panel 1 and the side wall portion of the inner panel 2 is inserted. It is sufficient if it has a structure that can be fixed to 2a.

In this way, by attaching the door hinge 8 to the side wall 2a of the inner panel 2 made of steel, a large local load will not be applied to the side wall 1a of the outer panel 1 made of synthetic resin, and the door hinge 8 will be lubricated. Not only does grease or the like not have any adverse effect on the outer panel 1, but the mounting structure of the door hinge 8 is also simplified.

Next, the structure for mounting the door lock device 24 will be explained with reference to FIGS. 5 to 8.

In the state where the outer panel 1 and the inner panel 2 are combined, the side wall portion 1a of the outer panel 1
The bulge 2 provided on the side wall 2a of the inner panel 2 is inside the bulge 11 provided on the side wall 2a of the inner panel 2.
A door lock device 24 is disposed inside the bulge 23 of the inner panel 2, and its upper and lower parts are fixed to the side wall 2a with screws 29.

In order to prevent the head of the screw 29 from protruding outside the side wall 2a of the inner panel 2, the side wall 2a is tapered inward in the vicinity of the screw hole, as shown in FIG. It is fixed with screws through 30.

The paint film is damaged by the tooth washers 30, and the screws 29 are likely to rust, but since the outside of the bulge 23 of the inner panel 2 is covered by the bulge 11 of the outer panel 1, the screw fixing portion is covered and hidden. , it is possible to prevent deterioration of the appearance of parts that are noticeable when the door is opened.

Door lock device 2 between the above upper and lower screw fixing parts
4 is provided with a striker insertion hole 32 into which a striker 31 is inserted.
2, a striker insertion hole 33 is provided in the bulge 23 of the inner panel 2 and the panel body in the vicinity thereof, and a striker insertion hole 33 is also provided in the bulge 11 of the outer panel 1.
4 is provided.

However, in order to prevent rainwater or car wash water inserted into the door lock device 24 from entering the vehicle interior along the striker 31, at least the lower edge 34a of the striker insertion hole 34 of the outer panel 1 is connected to the striker insertion hole of the inner panel 2. The lower edge 34a is located higher than the lower edge of the striker 33, and the lower edge 34a is slightly bulged outward, so that the striker 31 comes into contact with or approaches the lower edge 34a. It's summery.

With this structure, water flowing along the surface of the striker 31 flows to the lower edge 34a of the slit 34, and this water flows into the interior of the door body.

When assembling the automobile door D having the above structure, first, the door checker 9, the guide rail 19, and the guide rail 2 are attached to the inner panel 2 from the outside.
0, motor 22, door lock device 24, etc., the outer panel 1 and inner panel 2 are assembled, then the door hinge 8, outside handle 12, etc. are assembled, and then the trim member 3, seal member 5, window All you have to do is assemble the glass 4 etc.

In the above embodiment, although the side wall portion 1a of the outer panel 1 and the side wall portion 2a of the inner panel 2 are fixed with screws 25, adhesive, etc., a plurality of right triangular locks are attached to the side wall portion 2a of the inner panel 2. It is also possible to connect the outer panel 1 and the inner panel 2 by providing a protruding mountain portion and locking this stationary mountain portion into a locking hole or a locking recess provided in the side wall portion 1a of the outer panel 1.

In the automobile door D of the above embodiment, since the outer panel 1 is made of synthetic resin, the design requirements can be met to some extent, and the outer panel 1 and the inner panel 2 are connected via their side walls 1a and 2a. Because of this structure, even if the body line of the car changes slightly, it can be flexibly handled without changing the inner panel 2 and various accessory parts.Since the inner panel 2 to which various accessory parts are attached is made of steel plate, the various accessory parts can be changed depending on its structure. To greatly simplify door assembly work by being able to be used without changing the function and by assembling the door by assembling various accessories on the outer surface of the inner panel and then joining the outer panel 1 and the inner panel 2. I can do it.

Furthermore, the outside of the side wall portion 2a of the inner panel 2 to which the door lock device 24 is attached is the outer panel 1.
Since the head of the screw 29 is covered by the side wall portion 1a of the striker 34, the appearance is improved.Also, as mentioned above, the lower edge 34a of the slit 34 absorbs rainwater flowing out along the surface of the striker 31. It can be trapped to prevent it from flowing into the passenger compartment.

In addition, as described above, the door hinge 8 is attached to the side wall 2a of the inner panel 2 and inserted through the opening 7 of the outer panel 1, so that the local large load acting on the hinge attachment part acts directly on the side wall 1a of the outer panel 1. Since the side wall portion 1 of the outer panel 1
Not only can it reliably prevent deformation and cracking of a,
Since the door hinge 8 is attached to the side wall portion 2a of the inner panel 2 made of a steel plate, the hinge attachment portion has sufficient strength and rigidity and is excellent in durability.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and are shown in FIG.
Fig. 2 is an exploded perspective view and an overall perspective view of an automobile door, Fig. 3 is a cross-sectional view of a door hinge mounting part,
4 is a sectional view taken along the line taken from FIG. 3, FIG. 5 is a perspective view of the door lock device mounting portion, FIG. 6 is a cross sectional view of the door lock device fixing portion, and FIG. FIG. 8 is a sectional view taken along the line of FIG. 5. 1...Outer panel, 1a...Side wall portion, 2...
Inner panel, 2a... side wall portion, 8... door hinge, 24... door lock device.

Claims (1)

[Claims] 1 A door body consisting of an outer panel made of synthetic resin and an inner panel made of steel plate, and a side wall portion protruding toward the interior of the vehicle along the vicinity of the front and rear edges and the lower edge is integrally formed on the inner surface of the outer panel on the vehicle interior side. A side wall portion is integrally formed on the front and rear edges of the inner panel, and is a side wall portion that protrudes toward the outside of the vehicle interior and that fits inside the front and rear side wall portions of the outer panel. An automobile door characterized in that a door hinge is attached to the other side wall and a door lock device is attached to the other side wall.