JPS61169317A - Automobile door - 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 outer panel made of steel plate and an inner panel made of steel plate, but in recent years, due to demands for weight reduction and design of automobiles, various synthetic resin doors have been used. Proposed.

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

By the way, when the outer panel and the inner panel are integrally molded with synthetic resin lfA as in the plastic door for a vehicle, the following problem occurs.

The first problem is that the coefficient of thermal expansion of synthetic resin materials is extremely large, about IO 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 are now being used because there is a risk that door locks and door locks may not function properly, and the mounting structure of each part to the synthetic resin panel will change. There is a possibility that it will not be possible.

The second problem is that synthetic resin materials are particularly expensive.
In general, it is inferior in strength and rigidity compared to rope, so if the wall thickness is increased by that much, not only will it be impossible to reduce the weight, but it will also be necessary to incorporate steel reinforcing members to ensure the rigidity of the door panel. Since it is necessary to provide some kind of strength to parts that are subject to local loads, such as door hinges and attachment parts of door lock devices, the manufacturing process of door panels cannot be simplified.

The third problem is that even the slightest change in the car's body line, such as during a minor model change, will affect the entire door, which is disadvantageous in terms of developing variations.

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.

(Objective of the Invention) The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide an automobile door that can be used in various variations, can be used without changing various parts, and is easy to assemble. With the goal.

(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 direction along the vehicle interior is integrally formed, and the front and rear edges of the inner panel are provided with a side wall portion extending in the vehicle interior exterior direction.
A projecting side wall portion that fits into the front and rear side wall portions of the outer panel is integrally formed, and a door hinge is attached to one side wall portion of the inner panel, and a door lock device is attached to the other side wall portion. It is.

(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,
Since the front and rear side walls of the inner panel are fitted to the front and rear side walls of the outer panel, both panels can be connected by assembling various parts to the inner panel, then assembling both panels, and joining the side walls of both panels. can do.

In this way, the work of assembling the door can be extremely simplified, and since the inner panel to which various parts are assembled is made of steel plate as before, various parts that have been 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 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 these purposes. Since the structure of the outer panel is simplified and it is easier to manufacture it, there is no need to do so.

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

As shown in the exploded perspective view of FIG. 1 and the overall perspective view of FIG.
It consists of a window glass 4 and various other accessories.

The outer panel 1 is made of, for example, polyvinyl chloride resin (P
VC), polypropylene (PP), polyethylene (PE
) or synthetic resin such as ABS resin, and a side wall portion 1a that protrudes toward the passenger compartment is continuously formed on the inner surface facing the passenger compartment side along the vicinity of the front edge, rear edge, and lower edge. has been done.

A stepped portion 6 on which the sealing member 5 is attached is provided at the middle portion of the outer circumferential side of the side wall portion 1a, and opening lower portions 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.

The reference numeral 12 is an outside handle, the reference numeral 13 is a handle mounting portion to which the outside handle 12 is attached from the outside, and the reference numeral 14 is a regulating device for regulating the position of the outer surface of the window glass 4.

The inner puffer 2 is made of a steel plate, and has continuous side wall portions 2a that protrude toward the outside of the vehicle interior and fit inside the side wall portion 1a of the outer panel 1 at its front, rear, and lower edges. It is integrally formed with.

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

Incidentally, the reference numeral I7 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. A guide rail 20 for a windshield 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 windshield 4, and the carriage 21 is connected to a wire. A motor 22 that drives the inner panel 2 up and down is fixed to the outer surface of the inner panel 2.

In the center of the side wall portion 2a at the rear edge of the inch panel 2,
A bulge 23 is formed to fit into the bulge 11 provided on the side wall 1a near the rear edge of the outer panel 1, and a door lock device 24 is attached to the bulge 23.

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

When the outer panel 1 and the inner panel 2 are combined, they fit inside the side wall 2a of the inner panel 2 or the side wall 1a of the outer panel 1, and the both side walls 1a and 2a are mutually arranged along the entire length. Although they are connected using screws 25 at appropriate intervals, they can be connected not only by the screws 25 but also by adhesive or other means. And, on the inner surface of the inner panel 2 on the passenger compartment side, there is 1! The arm member 3 is placed on the housing and fixed with a fastener 26 or the like.

The door hinge 8 is inserted into the side wall 2a of the inner panel 2 from the open lower part of the side wall 1a of the outer panel 1, and
The movable hinge metal fitting 8a is fixed with a pair of screws 27, and the bottle 8C has its tip oriented vertically to the movable hinge metal fitting 8a.
Fixed side hinge fitting 8 connected to be relatively swingable via
A fixed side hinge fitting 8b is fixed to a pillar 28 of the automobile body with a bolt 29, and a nut 27a for fixing the movable side hinge fitting 8a is attached in advance to the inside of the side wall portion 2a of the inner panel 2. Fixed in advance.

However, 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 fitting 8a of the door hinge 8 is inserted from the open lower part of the outer panel 1, and 2
It is sufficient if it has a structure that can be fixed to a.

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. Grease etc. may have an adverse effect on the outer panel 1.

Not only that, but also the mounting structure of the door hinge 8 becomes simpler.

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

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

The head of the above-mentioned hiss 29 is on the inner panel 2 (7) side J part 2a
As shown in FIG. 6, a portion of the side wall portion 2a near the screw hole is tapered inwardly so as not to protrude outward, and is screwed through a tooth washer 3o.

The paint film is damaged by the tooth washer 30, and the screw 2
It is easy to rust from the part 9, but the bulge part 23 of the inner panel 2
The outer side of the door is covered with the bulging portion 11 of the outer panel 1, and the screw fixing portion is covered and hidden, so that deterioration of the appearance of the portion that is noticeable when the door is opened can be prevented.

A striker insertion hole 32 into which a striker 31 is inserted is provided in the door lock device 24 between the upper and lower screw fixing portions, and the bulge portion 23 of the inner panel 2 and its vicinity are located at a position corresponding to the striker insertion hole 32. A striker insertion hole 33 is provided in both the panel main body portion of the outer panel 1 and a striker insertion hole 34 is provided in the bulged portion 11 of the outer panel 1 as well.

In order to prevent rainwater or car wash water that has entered 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 inserted into the inner panel 2. Located higher than the lower edge of the striker insertion hole 33 and the lower edge 34
a is formed in a slightly bulged state outward, and the striker 31 comes into contact with or approaches this lower edge 34a.

With this structure, water flowing out along the surface of the striker 31 flows to the lower edge 34a of the slit 34,
This water will now flow inside the door body.

When assembling the automobile door D having the above structure,
First, the door checker 9 is attached to the inner panel 2 from the outside.
After assembling the guide rail 19, the guide rail 20, the motor 22, the door lock device 24, etc., the outer panel 1 and the inner panel 2 are combined, then the door hinge 8, the outside handle 12, etc. are assembled, and then the trim member is assembled. 3,
What is necessary is just to assemble the seal member 5, the window glass 4, etc.

In addition, in the above embodiment, the side wall portion 1 of the outer panel 1
a and the side wall portion 2a of the inner panel 2 are fixed with screws 25, adhesive, etc., but a plurality of right triangular locking ridges are provided protruding from the side wall portion 2a of the inner panel 2, and these stationary ridges are connected to the outer panel. It is also possible to connect the outer panel 1 and the inner panel 2 by engaging them in 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 inch 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 adjusted according to its structure. It can be used without changing its functions, and the assembly procedure of assembling the door involves assembling various accessories on the outer surface of the inch panel and then joining the outer panel 1 and inner panel 2, which greatly simplifies the door assembly process. .

Furthermore, since the outside of the side wall 2a of the inner panel 2 to which the door lock W24 is attached is covered by the side wall 1a of the outer panel 1, the heads of the screws 29 are covered and the appearance is improved. As mentioned above, the rainwater flowing out along the surface of the striker 31 is collected by the lower edge 34 of the slit 34.
You can trap it with a to prevent it from flowing into the passenger compartment.

In addition, as mentioned above, the door hinge 8 is attached to the side wall 2a of the inner panel 2 and the open lower part of the outer panel 1 is inserted through it, 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 door hinge 8 is attached to the side wall portion 2a of the inner panel 2 made of steel plate, the strength and rigidity of the hinge attachment portion is sufficient. Excellent durability.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIGS. 1 and 2 are an exploded perspective view and an overall perspective view of an automobile door, respectively, FIG. 3 is a cross-sectional view of a door hinge mounting part, and FIG. Figure 3 IV
-IV line sectional view, Figure 5 is a perspective view of the door lock device mounting part, Figure 6 is a cross sectional view of the door lock device fixing part, Figure 7 is a sectional view of Figure 5 - ■ line, and Figure 8 is a FIG. 5 is a sectional view taken along the line ■-■. ■...Outer panel, 1a...Side wall part, 2...Inner panel, 2a...Side wall part, 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 on the inside surface of the outer panel on the passenger compartment side, there is a side wall portion that protrudes toward the passenger compartment along the front and rear edges and the vicinity of the lower edge. are integrally formed on the front and rear edges of the inner panel, and side wall portions that protrude toward the exterior of the vehicle interior and fit into the front and rear side walls of the outer panel are integrally formed, and one side wall portion of the inner panel has a 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.