JPS6218370A - Car body structure of automobile provided with resin shell panel - Google Patents

Abstract

PURPOSE:To enable a resin shell panel to be mounted without any gap by fixing one end of said panel to a car body while engaging the other end slidably to be offset inward and outward of the car body relative to the ends of adjacent other shell members. CONSTITUTION:A front fender panel 3 of an automobile 1 and a door outer panel 4a of a door 4 are formed of synthetic resin, and the rear end of a fender panel 3 is disposed offset outward of a car body 2 relative to the front tend of said panel 4a. In this case, the rear end of the panel 4a is fixed to a door inner panel 4a.That is, a clip 12 engaging a longitudinal slot 11 formed in the panel 4b engages slidably said rail 10 so that the front tend of the panel 4a engages the panel 4b slidably vertically forward and backward.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the structure of an outer panel of an automobile body, and particularly to the structure of an automobile body having an outer panel formed of a synthetic resin material. be.

(Prior Art) Automobiles are required to have lighter bodies in order to reduce fuel consumption. Therefore, in recent years, as a method for reducing the weight, many attempts have been made to form vehicle body components from synthetic resin materials. If the vehicle body components are made of resin in this way, there is also the advantage that rust prevention measures are not required.

However, synthetic resin materials have a larger coefficient of thermal expansion than steel materials, so they expand or contract significantly depending on temperature conditions, causing problems in dimensional settings. For this reason, in the past, car body components that could be made of resin were limited to small area parts in the passenger compartment where temperature changes were relatively small, and bumper skins that allowed a certain amount of clearance to the car body. .

(Problems to be Solved by the Invention) Incidentally, in order to further reduce the weight of vehicle bodies, it is desired that even large outer panels such as fender panels and door panels be made of resin. In particular, if the front fender panel, which is susceptible to rust due to chipping or the like, is made of synthetic resin, it will be more preferable from the standpoint of preventing rust on the vehicle body.

However, such exterior panels are subject to rapid temperature changes and are directly affected by the temperature changes. For this reason, if the outer panel is made of resin and has an area comparable to the door outer panel of a two-door car, the size will be approximately 6 cm when expanded to the maximum and when contracted to the maximum. As a result, if the outer skin panel is fixed to other vehicle body components at several points around its circumference, excessive stress will be applied to the fixed parts due to dimensional fluctuations due to temperature changes. This may cause damage to the resin outer panel. Therefore, the outer panel needs to be able to be attached to the vehicle body while allowing for dimensional variations.

One way to attach such an outer panel is to fix one end of the outer panel and slidably lock the other end. However, in that case, as with conventional steel exterior panels, if you try to arrange the resin exterior panel and the adjacent exterior panel members on the same plane, when the resin exterior panel expands the most, In order to prevent damage from being butted against each other, a gap must be provided between them to allow for dimensional variations in the resin outer panels, especially when opening and closing such as door outer panels. In the case of an exterior panel that is a member to be used, there is a space between the opening/closing edge, i.e., the rear edge of a front-hinged door, and the front edge of the adjacent rear fender panel, etc. It is necessary to always maintain a gap of at least 5+sm in consideration of variations, errors in the installation of door hinges, errors in the door lock mechanism, and distortions due to long-term use. Therefore, if we try to allow the plastic door outer panel to expand through that part, the gap between them will become very large, approximately 11 mm, in cold weather. If the fender panel is also made of resin,
In between, it is necessary to add a gap that can accommodate the dimensional variation of the barrier fender panel, and the gap becomes extremely large.

If a large gap is formed between adjacent exterior panels in this way, it not only significantly impairs the appearance of the vehicle, but is also undesirable from the perspective of external noise entering the cabin. There will be results.

In addition, especially when the front fender panel is made of resin, when its front end expands and contracts in the longitudinal direction, the exposed area of combination lamps such as turn signal lamps attached to both sides of the front end of the vehicle changes. There is also the problem that the set dimensions, etc. become inconsistent.

The present invention has been made in view of the above-mentioned problems, and its first object is that when the outer panel of a vehicle body is formed of a synthetic resin material, the resin outer panel and other outer panels The purpose is to absorb dimensional fluctuations due to temperature changes in the outer panel while minimizing the gap formed between the outer panel and the plate member.

Further, the second object of the present invention is that even when the front fender panel is made of resin, the front fender panel and lamps such as headlamps and combination lamps, or the front grille, bonnet terminal part, etc. The purpose is to prevent any problems from occurring in the mating parts.

Furthermore, the third object of the present invention is that when the door outer panel is made of resin, the gap between the opening/closing edge and the adjacent outer panel member such as the fender panel can be reduced even due to dimensional changes due to temperature changes. The goal is to keep the gap almost constant so that it does not interfere with opening and closing.

A fourth object of the present invention is to prevent both the front fender panel and the adjacent door outer panel from being affected by dimensional changes due to temperature changes by forming them from synthetic resin materials. The goal is to avoid this.

(Means for solving the problem) In order to achieve this object, in the first aspect of the present invention, one end of the resin outer panel is fixed to the vehicle body, and the other end is slidably locked. At the same time, the slidable end portion is offset in the inner and outer directions of the vehicle body with respect to the end portions of other outer panel members adjacent thereto.

In the second aspect of the present invention, the front end of the resin front fender panel is fixed to the vehicle body, and the rear end is slidably locked.

The slidable rear end portion is offset in the inner and outer directions of the vehicle body with respect to the front end portion of the adjacent door outer panel.

Furthermore, in the third aspect of the present invention, the rear end portion of the resin door outer panel of the front hinged door adjacent to the front fender panel is fixed to the door inner panel, and the front end portion thereof is slidably locked. The slidable front end portion is offset in the inner and outer directions of the vehicle body with respect to the rear end portion of the front fender panel.

In the fourth aspect of the present invention, the front fender panel and the door outer panel that are adjacent to each other are both made of resin, and the front fender panel has its front end fixed to the vehicle body and its rear end slidably locked. In addition, the door outer panel has its rear end fixed to the door inner panel and its front end slidably locked, so that the rear end of the slidable front fender panel and the front end of the door outer panel are fixed to each other. The portions are offset from each other in the inner and outer directions of the vehicle body.

(Function) In this way, by offsetting the slidable end of the resin outer panel with respect to the adjacent outer panel member, the resin outer panel can be placed on a different surface from the adjacent outer panel member. It will expand and contract at the top. Therefore, even when the resin outer panel is expanded to the maximum, there is no fear that it will butt against adjacent outer panel members, making it possible to reduce the gap therebetween. Furthermore, it is also possible to overlap the resin outer panel with an adjacent outer panel member to eliminate the gap therebetween.

In addition, by fixing the front end of the front fender panel to the vehicle body and making the rear end slidable and prominent, even when the front fender panel is made of resin, it can be slid when it expands and contracts due to temperature changes. As a result, the parts that meet the lamps, front grille, bonnet terminals, etc. provided at the front of the vehicle body are held in a constant state. therefore,
There is no possibility that the dimensional settings of the lamps will be impaired.

Furthermore, by fixing the resin door outer panel of the front-hinged door to the door inner panel at the rear end and slidably locking the front end, expansion and contraction of the door outer panel due to temperature changes is prevented. The sliding front end absorbs the moisture, eliminating the risk of the rear end interfering with the rear fender panel, etc. when the door is opened or closed. Therefore, the gap between the door outer panel and the fender panel etc. can be minimized by 2.

In this way, the rear end of the front fender panel and the front end of the door outer panel are slidably locked and offset from each other, so that the expansion and contraction of each panel due to temperature changes is absorbed at the joints. This means that the effects of expansion and contraction on each other will no longer be exerted on other parts.

(Example) Hereinafter, the present invention will be explained in detail based on the drawings.

In the figure, Fig. f51 is a schematic cross-sectional view of the water layer for explaining one embodiment of the automobile body structure according to the present invention, Fig. 2 is a cross-sectional view of the water layer of the door, and Fig. 3 is a cross-sectional view of the water layer of the door. FIG. 3 is a vertical cross-sectional view of main parts.

Moreover, FIG. 4 is a side view of an automobile equipped with the vehicle body structure.

As is clear from FIG. 4, the automobile 1 is a two-door vehicle, and the side surfaces of the vehicle body 2 include a front fender panel 3, a door 4. and a rear fender panel 5. Front turn signal lamps 6 are attached to both ends of the vehicle body 2. The turn signal lamp 6 is exposed on both sides of the vehicle body 2, and its upper, lower and rear edges are surrounded by the front fender panel 3. Additionally, a turn signal lamp 7 is attached to both sides of the rear end of the vehicle body 2. This turn signal lamp 7 is also exposed on both sides of the vehicle body 2, and its lower and front edges are surrounded by the rear fender panel 5. The door 4 is of a front hinge type and is opened and closed from the rear end side.

The front fender panel 3 and the door outer panel 4a of the door 4 are made of synthetic resin material. and,
As shown in FIG. 1, the rear end of the front fender panel 3 is offset toward the outside of the vehicle body 2 with respect to the front end of the door outer panel 4a.
Moreover, the rear end portion of the front fender panel 3 and the front end portion of the door outer panel 4a are arranged to overlap with each other.

As is clear from FIG. 2, the rear end portion of the door outer panel 4a is fixed to the door inner panel 4b by a tapping screw 8 and a screw grommet 9. This door inner panel 4b is formed of a steel plate.

Further, as is clear from FIG. 2.3, the front end portion of the door outer panel 4a is slidably supported by a vertical rail lO provided on the back surface of the door outer panel 4a, and is formed on the door inner panel 4b. Long hole 1 in front and back direction
1, the door inner panel 4b is slidably secured to the door inner panel 4b in the vertical and longitudinal directions.

The front fender panel 3 is also fixed at its front end to a vehicle body component such as the front bulkhead of the vehicle body 2 by similar fixing means and slidable locking means, and its rear end is slidably engaged. It has been stopped. In this way, when the front fender panel 3 expands or contracts due to temperature changes, the rear end portion slides in the front-rear direction. And, even when the front fender panel 3 is expanded the most, the rear end part
It is configured not to reach beyond the door hinge 13 provided at the front end of the door inner panel 4b.

The rear fender panel 5 is made of steel plate in this embodiment. A door lock mechanism 14 is provided between the front end and the rear end of the door 4.

According to the vehicle body 2 configured in this way, when the front fender panel 3, which is a resin outer panel, becomes hot and expands under the scorching sun or the like, the rear end portion, which is slidably locked, extends rearward. That expansion is absorbed.

Therefore, large stress is not applied to the front fender panel 3 due to the expansion, and damage to the front fender panel 3 is prevented. At this time, the rear end of the front fender panel 3 is offset toward the outside of the vehicle body with respect to the front end of the door outer panel 4a, which is another outer panel member adjacent thereto.
The front fender panel 3 extends on a plane different from that of the front fender panel 3, and does not come into contact with the door outer panel 4a. In other words, there is no need to provide a gap between the front fender panel 3 and the door outer panel 4a.

Since the expansion of the front fender panel 3 is thus absorbed by the rear end, the front end can be firmly fixed. therefore,
The portions of the front end of the front fender panel 3 that meet with lamps such as the front turn signal lamp 6, the front grill, the end of the bonnet, etc. can be maintained in a fixed positional relationship.

In addition, by overlapping the rear end of the front fender panel 3 and the front end of the door outer panel 4a, even when the front fender panel 3 contracts in cold weather, the side of the vehicle body 2 can be seen between them. This will prevent any gaps from appearing. Furthermore, by offsetting the front fender panel 3 outward from the door outer panel 4a, water, pebbles, etc. thrown up during driving can be prevented from entering the interior of the vehicle body 2 through the gap between them. will be prevented.

On the other hand, when the door outer panel 4a, which is a resin outer panel, becomes hot and expands, the slidably locked front end portion extends forward and the expansion is absorbed. At this time, the front end of the door outer panel 4a slides inward of the rear end of the front fender panel 3, which is another outer panel member adjacent thereto. Therefore, the door outer panel 4a and the front fender panel 3 do not come into contact with each other, and their expansion does not affect each other.

By fixing the rear end of the door outer panel 4a to the door inner panel 4b made of steel plate, a constant gap is always ensured between the rear end edge of the door outer panel 4a and the front end edge of the rear fender panel 5. can do. Therefore, the door outer panel 4a is prevented from interfering with the rear fender panel 5 even when the door outer panel 4a is expanded.

Further, since the expansion and contraction of the resin front fender panel 3 and the resin door outer panel 4a are absorbed at the joint portion thereof, the appearance is not impaired.

In the above embodiment, the rear fender panel 5 is made of a steel plate, but the rear fender panel 5 may also be made of resin. In that case, the front end of the rear fender panel 5 may be fixed to the vehicle body 2, and the rear end may be slidably locked, and the rear turn signal lamp 7
The garnish or the like may be extended forward and overlapped with the rear end of the rear fender panel 5.

Further, in the above embodiment, the automobile 1 is a two-door vehicle, but the present invention is not limited to this, and can also be applied to a four-door di.

(Effects of the Invention) As is clear from the above description, according to the present invention, one end of a car body outer panel formed of a synthetic resin material is fixed to the car body, and the other end is slidable. Since the plastic outer panel is locked in place, the expansion and contraction of the resin outer panel due to temperature changes is absorbed by the slidable end, preventing damage to the resin outer panel due to expansion and contraction. will be prevented. In addition, since the slidable end of the resin outer panel is offset in the inward and outward direction of the vehicle body with respect to the edge of the adjacent outer panel, the expansion and contraction of the resin outer panel is prevented. , is performed on a different surface from the end portions of adjacent skin members, the gap between them can be made sufficiently small, and it is also possible to overlap them. Therefore, the appearance, sound insulation properties, etc. of the vehicle body are not impaired by such gaps.

Since the outer panels of the vehicle body can be made of resin in this manner, weight reduction of the vehicle body and simplification of rust prevention measures are further promoted.

Further, according to the present invention, the front fender panel is made of resin, and its front end is fixed to the vehicle body, and its rear end is slidably locked, so that in addition to the above-mentioned effects, The front end of the front fender panel where it meets other parts is held in a constant positional relationship. Therefore, it is possible to prevent a portion of the turn signal lamp from being hidden or a gap from being formed between the resin front fender panels due to expansion and contraction due to temperature changes.

Further, according to the present invention, the door outer panel of the front-hinged door is made of resin, and the rear end is fixed to the door inner panel, and the front end is slidably locked. The gap between the rear edge of the door outer panel, which is the opening/closing edge, and the front edge of the rear fender panel, etc., can be maintained optimally at all times. Therefore, even if the resin door outer panel expands and contracts due to temperature changes, the door outer panel will not interfere with the rear fender panel or a large gap will be formed between them.

The slidable rear end of the resin front fender panel and the slidable front end of the resin door outer panel are offset from each other in the inner and outer directions of the vehicle body, so they can expand and contract independently. Therefore, there will be no influence on each other. Furthermore, since the telescopic ends are concentrated at the joint portion, it is possible to maintain the appearance of the vehicle body in an extremely good condition.

[Brief explanation of the drawing]

FIG. 1 is a schematic horizontal sectional view of a vehicle body showing an embodiment of the vehicle body structure according to the present invention, and FIG. 2 is a horizontal sectional view of a door portion thereof. FIG. 3 is a vertical cross-sectional view of the main part of the door taken along the line ■-m in FIG. 2, and FIG. 4 is a side view of an automobile equipped with the vehicle body structure. l...Automobile 2...Vehicle body 3...Front fender panel (outer panel, outer panel member) 4...Door 4a...Door outer panel (outer panel, outer panel member) 4b... Door inner panel 5...Rear fender panel (outer panel) 12...
Clip 13...Door hinge Figure 3 Figure 4

Claims (6)

[Claims] (1) At least one of the outer panels 3 and 4a of the vehicle body 2 is formed of a synthetic resin material, and one end of the resin outer panel 3 and 4a is fixed to the vehicle body 2, while the other end is slidable. The slidable end portions of the resin outer panel members 3, 4a are offset in the inner and outer directions of the vehicle body 2 with respect to the end portions of the other outer panel members 4a, 3 adjacent thereto. , An automobile body structure with a resin outer panel. (2) The slidable end of the resin outer panel 3, 4a overlaps the end of the other outer panel member 4a, 3 adjacent thereto. The vehicle body structure of the vehicle described in scope 1. (3) The front fender panel 3 is formed of a synthetic resin material, the front end of the front fender panel 3 is fixed to the vehicle body 2, and the rear end is slidably locked, so that the rear of the front fender panel 3 is fixed to the vehicle body 2. An automobile body structure including a resin outer panel whose end portion is offset in the inner and outer directions of the vehicle body 2 with respect to the front end portion of an adjacent door outer panel 4a. (4) A door hinge 13 of the door 4 having the door outer panel 4a is provided at its front end, and the rear end of the front fender panel 3 is positioned outward of the vehicle body 2 with respect to the front end of the door outer panel 4a. The automobile body structure according to claim 3, which is offset to the side. (5) The door outer panel 4a of the front hinge type door 4 adjacent to the front fender panel 3 is formed of a synthetic resin material, and the rear end of the door outer panel 4a is fixed to the door inner panel 4b, and the front end is slidable. An automobile body equipped with a resin outer panel that can be latched so that the front end of the door outer panel 4a is offset in the inner and outer directions of the vehicle body 2 with respect to the rear end of the front fender panel 3. structure. (6) The front fender panel 3 and the door outer panel 4a of the front hinged door 4 adjacent thereto are each made of a synthetic resin material, the front end of the front fender panel 3 is fixed to the vehicle body 2, and the rear end is fixed to the vehicle body 2. The rear end of the door outer panel 4a is fixed to the door inner panel 4b, and the front end thereof is slidably locked, so that the rear end of the front fender panel 3 and the door are fixed. An automobile body structure including a resin outer panel in which the front end of the outer panel 4a is offset from each other in the inner and outer directions of the vehicle body 2.