JPH0515172Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a jack mounting structure for an automobile.

Prior Art Figures 3 to 5 show a conventional structure, in which 1 is a trunk floor, 2 is a rear wheel house consisting of an inner wheel house 3 and an outer wheel house 4; The peripheral flanges 5 and 6 are integrally joined with the rear pillar inner 7 sandwiched between them. The rear lower end portion of the rear pillar inner 7 is formed up to near the trunk floor 1, and this rear lower end portion is joined to a floor extension plate 8 which is erected and joined to the trunk floor side.
Then, a jack bracket support plate 9 bent into an L shape is connected to the rear pillar inner 7 with bolts and nuts 10, and a jack bracket 11 for holding a jack 12 is attached to the mounting surface 9a of the jack bracket support plate 9. It is joined. This similar structure is shown in, for example, Japanese Utility Model Application No. 59-66650.

Problem to be Solved by the Invention In order to attach the jack bracket support plate 9 to which the jack bracket 11 is joined to the free end side of the rear pillar inner 7, the rear pillar inner 7
It is necessary to secure the surface rigidity of the rear pillar inner 7 by joining the reinforcement 13 to the part corresponding to the attachment of the jack bracket support plate 9, which increases the number of parts and work hours, which is disadvantageous in terms of cost. Put it away. Furthermore, even if the rear pillar inner 7 is reinforced with the reinforcement 13, if a heavy jack 12 is installed and the rear pillar inner 7 vibrates in the vehicle width direction due to vehicle body vibration, this vibration load will be transferred to the floor extension. There is a possibility that this may act on the joint with the plate 8 and cause cracks to occur. Further, since it is necessary to form the rear lower end portion of the rear pillar inner 7 up to the vicinity of the trunk floor 1, the rear pillar inner 7 has poor cutting properties and becomes increasingly disadvantageous in terms of cost. Therefore, the present invention can increase the surface rigidity of the rear pillar inner without using a special reinforcing material, increase the joint strength with the floor extension plate, and increase the support rigidity of the jack. The present invention provides a jack mounting structure for an automobile.

Means for Solving the Problem In a structure in which the peripheral flanges of the inner wheel house and outer wheel house of the rear wheel house are joined together with the rear pillar inner, there is an extension on the rear side of the peripheral flange of the outer wheel house that reaches the rear edge of the rear pillar inner. A floor extension plate is formed with a extending portion and connects the rear pillar inner to the trunk floor side through the extending portion, and is connected to the trunk floor side, and also connects the extending portion and the lower end portion of the rear pillar inner. A jack bracket support plate is coupled across the joint between the extension portion and the upper end of the floor extension plate, and the jack bracket is fixed to the jack bracket support plate.

Function The jacking load is distributed from the floor extension plate to the trunk floor side, and is also distributed and borne by the rear wheel house.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings, in which the same parts as those of the conventional structure are denoted by the same reference numerals.

In Figures 1 and 2, the rear pillar inner 7 is connected to the wheel house outer 3 of the rear wheel house 2,
Each peripheral flange 5, 6 of the wheel house outer 4
The basic structure in which the peripheral flanges 5 and 6 are sandwiched and integrally joined is the same as the conventional one. Here, an extending portion 14 reaching the rear end edge of the rear pillar inner 7 is formed on the rear side of the peripheral flange 6 of the wheel house outer 4.
4, the rear lower end of the rear pillar inner 7 is joined to the floor extension plate 8, which is erected by joining the extension part 14 to the trunk floor side, and is also joined to the trunk floor side. Then, the jack bracket support plate 9 is fixed to the joint part between the rear pillar inner 7 and the extension part 14 and the joint part between the extension part 14 and the floor extension plate 8 with bolts and nuts 10, respectively. It is installed across the joint.

According to the structure of the above embodiment, the surface rigidity of the mounting part of the jack bracket support plate 9 is sufficiently secured because the extension part 14 functions as a reinforcing plate, and the supporting load of the jack 12 is transferred from the floor extension plate 8 to the trunk. It is distributed to the floor side and also to the rear wheel house 2 via the extension part 14. Therefore, the deflection of the rear pillar inner 7 in the vehicle width direction can be suppressed, and the jack support rigidity can be further increased. Also, the jack bracket support plate 9 is attached to the joint between the rear pillar inner 7 and the extension part 14, and the extension part 1.
Since the bolts and nuts 10 are connected to the joints between the rear pillar inner 7 and the floor extension plate 8, the strength of these joints can be increased. It can also be connected to the side of the trunk floor, increasing the torsional rigidity of the rear of the vehicle body. Further, since the rear pillar inner 7 can be connected to the floor extension plate 8 as described above without extending to the vicinity of the trunk floor 1, the rear pillar inner 7 can be advantageously cut out.

Effects of the invention As described above, according to the invention, the extension part formed on the peripheral flange of the wheel house outer functions as a reinforcing plate, and the surface rigidity of the jack bracket support plate attachment part can be ensured. There is no need to use materials, and the number of parts and work hours can be reduced, which can greatly contribute to cost reduction. Moreover, the rear pillar inner can be connected to the floor extension plate and the trunk floor side through this extension, and the joint between the extension and the rear pillar inner and the joint between the extension and the floor extension plate can be connected to the rear pillar inner. This can be reinforced by connecting the jack bracket support plate, which suppresses the vibration of the rear pillar inner in the vehicle width direction, and distributes and carries the jack support load to the rear wheel house and trunk floor. This has a great practical effect of increasing not only the rigidity but also the torsional rigidity of the rear part of the vehicle body.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a side view of the same main part, Figure 3 is a perspective view showing the conventional structure, Figure 4 is a side view of the same main part, and Figure 5 is the fourth
FIG. 3 is a sectional view taken along the - line in the figure. 1... Trunk floor, 2... Rear wheel house, 3... Wheel house inner, 4... Wheel house outer, 5, 6... Peripheral flange, 7
... Rear pillar inner, 8 ... Floor extension plate, 9 ... Jacket bracket support plate, 11 ... Jacket bracket, 12 ...
...Jayatsuki, 14...Extension part.

Claims (1)

[Scope of utility model registration request] In a structure in which the peripheral flanges of the inner wheel house and outer wheel house of the rear wheel house are joined together with the rear pillar inner, an extension part is formed on the rear side of the peripheral flange of the outer wheel house to reach the rear end edge of the rear pillar inner. A floor extension plate that connects the rear pillar inner to the trunk floor side via an extension part, and a joint part between the extension part and the lower end of the rear pillar inner, and the extension part. 1. A jack mounting part structure for an automobile, characterized in that a jack bracket support plate is coupled to the jack bracket support plate so as to straddle the joint part with the upper end of the floor extension plate, and the jack bracket is fixed to the jack bracket support plate.