JPH0315426Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a vehicle body structure that improves the mounting structure of a stopper bracket of a stopper that prevents a collision between an axle beam on the tire side and a frame on the vehicle body side.

[Technical background of the invention and its problems] In general, vehicles such as automobiles are equipped with a suspension device equipped with springs, shock absorbers, etc. between the axle beam of the front axle, rear axle, etc. and the vehicle body. This prevents shocks from the road surface from being directly transmitted to the vehicle body while the vehicle is running. In this case, while the vehicle is running, the distance between the axle beam and the vehicle body changes depending on the upward and downward movements of the tires. For example, when a tire falls into a groove on the road surface, When a large impact force is applied to the tire, the gap between the axle beam and the vehicle body rapidly narrows, and there is a risk that the axle beam will directly hit a frame such as a side member on the vehicle body side. Therefore, in order to prevent a direct collision between the axle beam and the frame on the vehicle body side when a large impact force is applied to the tire, a stopper made of an elastic material such as rubber is installed on the frame on the vehicle body side. This stopper prevents a direct collision between the axle beam and the frame on the vehicle body side.

By the way, in the case of conventional structures, a stopper bracket for attaching the stopper to the frame on the vehicle body side is provided integrally with the frame, or a stopper bracket separate from the frame is independently fixed to the frame. I was getting used to it. Therefore, when the axle beer collides with the stopper, most of the impact force transmitted to the stopper side is transmitted to the frame, so it is necessary to ensure sufficient rigidity of the frame. There were problems in trying to make it smaller and lighter.

[Purpose of invention]

This idea disperses the impact force that acts on the vehicle body when the axle beam collides with the stopper, increasing the strength near the stopper bracket attachment site, and making the frame on the vehicle body smaller and lighter. The purpose is to provide a vehicle body structure that allows for

[Summary of the idea]

This idea consists of a wheel house connected to the side of the floor pan, and a cross section of approximately L consisting of a vertical wall and a horizontal wall.
The vertical wall has an open end along the longitudinal direction of the vehicle and is connected to the lower surface of the floor pan, and the open end of the horizontal wall along the longitudinal direction is connected to the wheel house. a side member that is connected to the side member and forms a closed cross section with itself, the wheel house, and the floor pan; an axle beam that is disposed below the side member and connects wheels on both sides of the vehicle body; and an axle beam that is separated from the axle beam of the side member. An axle stopper is provided on the opposing portion via a bracket, and the bracket is connected to the lower surface of the horizontal wall portion and the side surface of the vehicle interior of the wheel house.

[Example of idea]

An embodiment of this invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of the area around the rear wheels of a car body 1, where 2 is a quarter panel outer forming the outer surface of the car body 1, 3 is a wheel house disposed inside this quarter panel outer 2,
4 is a rear side member forming the frame of the vehicle body 1; 5 is a rear floor pan forming the rear floor plate of the vehicle body 1. The wheel house 3 is formed by both wheel house constituent panels, including an outer panel 3a on the outside and an inner panel 3b on the inside. Further, both sides of the rear floor pan 5 are joined to the inner surfaces of the inner panels 3b of the left and right wheel houses 3, respectively. Furthermore, the rear side member 4 is a member that has a substantially L-shaped cross section, consisting of a vertical wall portion and a horizontal wall portion, and is disposed along the longitudinal direction of the vehicle. A second joint flange 4 connected to the lower surface of the rear floor pan 5 is provided at the open end of the vertical wall of the rear side member 4 along the longitudinal direction.
b is formed. Furthermore, a first joining flange 4a that is connected to the inner panel 3b of the wheel house 3 is formed at the open end of the side wall of the rear side member 4 along the longitudinal direction.
The first joint flange 4a of this rear side member 4 is connected to the inner panel 3 of the wheel house 3.
b and the second joining flange 4
b is connected to the lower surface of the rear floor pan 5, and the wheel house 3 and rear floor pan 5 form a bag-like structure (closed section) 6 as shown in FIG. Further, on the lower surface of the rear side member 4, there is an axle stopper formed of an elastic material such as rubber at a portion facing away from the axle beam 8 that connects the rear wheels 7, 7 on both the left and right sides of the vehicle body 1. 9
is attached via a stopper bracket 10. As shown in FIG. 2, this stopper 9 has an engaging protrusion 9a formed on the mounting end side. Also,
The stopper bracket 10 is a substantially box-shaped member with one side open, and a mounting hole 11 for the stopper 9 is formed in the bottom 10a of the stopper bracket 10, as shown in FIG. The engaging protrusion 9a of the stopper 9 is fitted into the attachment hole 11 of the stopper bracket 10, so that the stopper 9 can be attached to the stopper bracket 10. Further, the stopper bracket 10 has a bottom portion 10a joined to the lower side of the horizontal wall portion of the rear side member 4, and one side portion 10b connected to the first joining flange 4a of the rear side member 4 and the wheel house 3.
It is integrally joined with the inner panel 3b by, for example, spot welding or the like.

Therefore, in the case of the structure described above, one side portion 10b of the stopper bracket 10 is integrally joined with the rear side member 4 and the inner panel 3b of the wheel house 3, so that a large impact may be applied to the rear wheel 7 while the vehicle is running. When the axle beam 8 collides with the stopper 9 due to force acting on it, the impact force transmitted to the stopper 9 side can be transmitted to the wheel house 3 side as well as the rear side member 4 side via the stopper bracket 10. Therefore,
Since the impact force acting on the vehicle body 1 side when the axle beam 8 collides with the stopper 9 can be dispersed, the stopper bracket 10 can be
It is possible to increase the mechanical strength near the attachment site, and it is possible to reduce the size and weight of the frame such as the rear side member 4 on the vehicle body 1 side.

It should be noted that this invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the gist of this invention.

[Effect of idea]

According to this invention, the bracket of the axle stopper is connected to the lower surface of the side wall of the side member and the side surface of the vehicle interior of the wheel house, so that the axle beam comes into contact with the stopper due to upward displacement of the axle beam. At this time, the force acting on the stopper can be efficiently distributed to the side member and the wheel house via the bracket. Therefore, it is possible to omit reinforcing members, etc., which are required when the force from the stopper is received only by the side members as in the conventional case, so that the stopper mounting portion can be made smaller and lighter. Further, since the above-mentioned functions and effects can be achieved with a very small number of components such as the side member, wheel house, floor pan, and bracket, productivity can be improved and costs can be reduced.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
2 is a longitudinal sectional view showing a schematic structure of the vehicle body in the vicinity of the stopper mounting portion, FIG. 2 is a longitudinal sectional view showing the stopper mounting state, and FIG. 3 is a perspective view showing the stopper bracket. 1...Vehicle body, 3...Wheel house, 3b...
Inner panel (wheel house configuration panel), 4
...Rear side member, 8...Axle beam,
9...Stoppa, 10...Stoppa bracket.

Claims (1)

[Claims for Utility Model Registration] A wheel house connected to the side of the floor pan, having a substantially L-shaped cross section consisting of a vertical wall part and a horizontal wall part, and arranged along the longitudinal direction of the vehicle. An open end of the wall along the longitudinal direction is connected to the lower surface of the floor pan, and an open end of the side wall along the longitudinal direction is connected to the wheel house, forming a closed cross section with itself, the wheel house, and the floor pan. an axle beam disposed below the side member and connecting wheels on both sides of the vehicle body; an axle stopper attached via a bracket to a portion of the side member facing away from the axle beam; A vehicle body structure characterized in that a bracket is connected to a lower side surface of the side wall portion and a side surface of the vehicle interior of the wheel house.