JPS6147744B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure of a rear fender portion of a two-door automobile, and more particularly to a structure of a rear fender portion of a two-door automobile in which a center pillar and a side sill are connected by a closed cross-sectional structure.

An example of a conventional rear fender section of a two-door automobile is disclosed in Japanese Utility Model Application Publication No. 54-77318, in which a center pillar reinforcement provided vertically on a quarter panel is attached to a center pillar reinforcement in the longitudinal direction of the vehicle body. A quarter panel reinforcement provided toward the rear of the center pillar reinforcement is configured to straddle the closed cross section of the center pillar reinforcement, and a rear There are known devices that disperse the load during a collision. However, this structure requires a large number of members to form a complicated closed cross section, which increases costs and poses problems that prevent reduction in vehicle weight.

Another example of the rear fender section of a conventional two-door automobile is composed of a rear fender panel, an inner panel, and a generally flat reinforcing panel, and the inner panel and the reinforcing panel form a closed cross-sectional structure. something is known. This conventional rear fender structure requires both an inner panel and a reinforcing panel, which causes problems in the number of parts and the complexity of the structure. Furthermore, when the thickness of the side wall of the vehicle body is constant, the width in the thickness direction of the closed cross section created by the inner panel and the reinforcing panel is determined by the position of the reinforcing panel, so the area of the closed cross section is compared. The target size became smaller, and there were also problems in terms of strength.

The present invention was made in view of the above-mentioned problems of the rear fender of conventional two-door automobiles, and the present invention strengthens the rear fender, particularly the leading edge of the rear fender, which is the trailing edge of the door opening, with a simple structure. The purpose of the present invention is to provide a rear fender structure that strengthens the connection between the center pillar and the side sill.

The structure of the rear fender portion of a two-door automobile according to the present invention has the following structural features in order to achieve the above object. That is, the present invention provides a two-door automobile in which a side door is attached to each of the left and right door openings of the vehicle body, in which a door receiving step portion that extends in the vertical direction and serves as the trailing edge of the door opening is provided at the front edge portion of the rear fender panel. , a door receiver inner panel is provided on the back surface of the door receiver step part so as to form a closed cross-sectional structure, the door receiver inner panel is vertically extended between the pillar inner of the center pillar and the side sill, A structural feature is that the closed cross-section structure connects the center pillar and the side sills.

The present invention provides a rear fender structure that can form a closed cross-sectional structure with a large cross-sectional area, is simple, has a small number of component parts, and is lightweight, and has a rear fender structure that strengthens the connection between the center pillar and the side sill. can be obtained.

Embodiments of the present invention will be described below based on the drawings. As shown in FIG. 1, the area around the center pillar on the left side of the vehicle body is composed of a roof panel 2, a center pillar 4, a rear fender panel 6, a side sill 8, an inner panel 10, etc., and a door opening 12 and a rear quarter window opening 13. has been established. The rear fender panel 6 has a door receiving step 14 formed at the rear edge of the door opening 12. The door step 14 is covered and hidden from view by the door 16 in the closed state shown by the two-dot chain line in FIG.

The lower part of the rear fender panel 6, including the lower part of the door receiving step 14, becomes a part of the side sill outer 18 of the side sill 8, as shown in FIGS. 1 and 2. Further, on the back surface of the door receiving step portion 14, a door receiving inner panel 22 formed by extending the center pillar inner 20 constituting the center pillar 4 downward is provided to extend in the vertical direction. The door receiver inner panel 22 is generally L-shaped, and has one end joined to the outer rear surface of the door receiver step 14 and the other end connected to the rear fender panel 6 located in front of the door receiver step 14. is joined to the front end of the door receiving step part 14.
and the door receiving inner panel 22 form a closed cross-sectional structure. The lower end of the door receiver inner panel 22 is joined to the upper extension 24' of the reinforcement panel 24 of the side sill 8, as shown in FIG.

As shown in FIGS. 1 and 3, the center pillar inner 20 and the door receiver inner panel 22 are integral members, and the rear fender panel 6 and the center pillar outer 26 are also integral members, and the inner panel 10 is combined with the upper end of the rear fender panel 6 and the door receiving inner panel 22 to form the lower edge of the rear quarter window opening 13. The joining in the above embodiments is performed by spot welding at the positions indicated by x marks in each figure.

Door receiver step part 14 and door receiver inner panel 22
As shown in FIG. 4, a first embodiment of the closed cross-sectional structure constructed by the above has a protrusion 30 on the interior side of the door receiver inner panel 22. The door 16 is configured with a large rearward extension 16'. An edge 22' of the door receiving inner panel 22 on the rear fender 6 side is joined to a portion of the door receiving step 14 that is extremely close to the rear fender 6.

Door receiver step part 14 and door receiver inner panel 22
As shown in FIG. 5, the second embodiment has a closed cross-section structure configured by 16 is a small rear extension 1
6''. An edge 22' of the door receiving inner panel 22 on the rear fender 6 side is joined within the horizontal plane of the door receiving step.

Note that the door receiving inner panel 22 is not limited to the above embodiment, and may be formed of a separate member from the center pillar inner 20.
A structure in which the upper end and the lower end of the center pillar inner 20 are joined by welding may also be used.

[Brief explanation of the drawing]

1 is a perspective view of the rear part of the left door opening of the embodiment of the present invention as seen from outside the vehicle, FIG. 2 is a perspective view of the lower part of the door opening of FIG. 1 as seen from inside the vehicle, and FIG. FIG. 4 is a cross-sectional view of the first embodiment of the closed cross-sectional structure, and FIG. 5 is a cross-sectional view of the second embodiment of the closed cross-sectional structure. 2...Roof panel, 4...Center pillar, 6
...Rear fender panel, 8...Side sill, 1
0...Inner panel, 12...Door opening, 13...
...Rear quarter window opening, 14...Door receiver step, 18...Side sill outer, 22...Door receiver inner panel.

Claims (1)

[Scope of Claims] 1. In a two-door automobile in which side doors are attached to the door openings on the left and right sides of the vehicle body, a door receiving step portion extending in the vertical direction that becomes the trailing edge of the door opening is provided at the front edge of the rear fender panel. A door receiver inner panel is provided on the back surface of the door receiver stepped portion to form a closed cross-sectional area structure, and the door receiver inner panel is vertically extended between the pillar inner of the center pillar and the side sill. A structure of a rear fender for a two-door automobile, characterized in that the closed cross-section structure is configured to connect a center pillar and a side sill. 2. The structure of a rear fender portion of a two-door automobile according to claim 1, wherein the door receiving inner panel has a lower end joined to a reinforcement panel of a side sill. 3. The structure of a rear fender portion of a two-door automobile according to claim 1, wherein the door receiving inner panel and the pillar inner of the center pillar are integrally formed. 4. The structure of a rear fender portion of a two-door automobile according to claim 1, wherein the door receiving inner panel and the pillar inner of the center pillar are formed separately and joined together.