JPS6347180Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connection structure for a rear wheel house portion of an automobile body.

FIG. 1 is a perspective view of the rear part of an automobile body, FIG. 2 is an exploded perspective view of the main parts thereof, and FIG. 3 is a longitudinal cross-sectional view of the central part of the rear wheel house. In the figure, 1 is a quarter panel outer, 2 is a quarter panel inner, and 3 is a rear wheel house inner.The quarter panel inner 2, which is connected to the inside of the quarter panel outer 1, is located outward at the lower rear wheel installation location. A rear wheel house 4 is formed by attaching an inwardly curved rear wheel inner 3 to the inside thereof. Furthermore, a bracket 6 for supporting the shock absorber 5 of the rear suspension and a reinforcement hose 7 for reinforcing against the force from the shock absorber 5 are attached to the inner side of the central portion (wheel side) of the rear wheel house inner 3. There is. On the other hand, at the center of the outside (inside the vehicle interior) of the rear wheel house inner 3, a seat striker line hose 9 that fixes a seat catch 8 that supports the rear seat is straddled between the rear wheel house inner 3 and the quarter panel inner 2. Installed. Further, in order to prevent water from entering the vehicle interior from the rear wheel house 4, a sealer is applied to the joint between the rear wheel house inner 3 and the quarter panel inner 2 from the wheel side.

Here, the quarter panel inner 2 and the rear wheel house inner 3 are connected by spot welding the arcuate joint 3a on the upper edge of the rear wheel house inner 3, but as mentioned above, the center part of the joint 3a is spot welded. Since the seat strike line hose 9 is located, it interferes with the seat strike line hose 9, making it impossible to weld the joint portion 3a of the rear wheel house inner 3 continuously over its entire length. Conventionally, the welding of the portion surrounded by the sheet strike line hose 9 was performed in a separate process by inserting a welding machine into the seat strike line hose 9 from the rear. In addition, quarter panel inner 2 and rear wheel house inner 3
It may be possible to weld the seat striker line hose 9 first and then attach the seat striker line hose 9, but in this case, a hole or notch into which a welding machine is inserted must be formed in the rear wheel house inner 3. In either case, the machining process became complicated, leading to a decrease in work efficiency.

The present invention has been developed in view of the above-mentioned problems, and its purpose is to provide a body-joining structure for a rear wheel house portion that is intended to simplify the manufacturing process. The configuration of the present invention to achieve such an object is such that on the arc-shaped joint between the quarter panel inner and the rear wheel house inner that constitute the rear wheel house, there is a structure that extends between the quarter panel inner and the rear wheel house inner. In the joint structure of the rear wheel house portion to which the seat striker line hose is attached, a structural adhesive is bonded between the quarter panel inner and the rear wheel house inner in a portion of the joint portion surrounded by the seat striker line hose. It is characterized by the presence of an agent and the other parts being joined together by spot welding.

An embodiment of the present invention will be explained below using drawings.
FIG. 4 is an explanatory view of the connection structure between the rear wheel house inner and the seat strike line hose to the quarter panel inner. A structural adhesive is interposed between the quarter panel inner 2 and the rear wheel house inner 3 in the area surrounded by (hatched line in the figure), and the other connecting parts 3a of the rear wheel house inner 3 and the seat are The outer edge 9a of the striker line hose 9 is joined to the quarter panel inner 2 by spot welding (marked with an X in the figure). Here, if a thermosetting adhesive such as an epoxy resin is used as the structural adhesive, it will naturally harden when heated (about 170° C.) in the subsequent painting process to obtain adhesive strength. Furthermore, the joint between the quarter panel inner 2 and the rear wheel house inner 3 is waterproofed by applying a sealer to the spot welded portion from the wheel side (zigzag lines in the figure indicate the application points).

In such a joint structure, the spot welding in joining the rear wheel house inner 3 and the seat striker line hose 9 to the quarter panel inner 2 is performed at the joint part 3a of the rear wheel house inner 3.
This can be done continuously with the outer edge 9a of the sheet strike line hose 9, and the strength of the part surrounded by the sheet strike line hose 9 can be maintained with adhesive, so welding of that part can be omitted and conventional This simplifies the processing process. In addition, since the adhesive has a waterproof effect, it is sufficient to apply the waterproof sealer only to the spot welded joints of the quarter panel inner 2 and rear wheel house inner 3, which also simplifies the processing process. .

As described above in detail with reference to one embodiment, the present invention has the effect of simplifying the machining process and improving work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the rear part of the automobile body, Fig. 2 is an exploded perspective view of the main parts thereof, Fig. 3 is a vertical cross-sectional view of the central part of the rear wheel house section, and Fig. 4 is an embodiment of the present invention. FIG. 2 is an explanatory diagram of a connection structure of a rear wheel house inner and a seat striker link hose to a quarter panel inner. In the drawing, 1 is a quarter panel outer, 2 is a quarter panel inner, 3 is a rear wheel house inner, 3a is a joint, 4 is a rear wheel house, 9
is a seat striker line horse.

Claims (1)

[Scope of utility model registration request] A rear wheel house part in which a seat strike line hose is attached to the arc-shaped joint between the quarter panel inner and the rear wheel house inner, which constitute the rear wheel house, and to span the quarter panel inner and the rear wheel house inner. In the joint structure, a structural adhesive is interposed between the quarter panel inner and the rear wheel house inner in a portion of the joint surrounded by the sheet striker line hose, and the other parts are joined by spot welding. The body connection structure of the rear wheel house is characterized by: