JPS6030143Y2 - Passenger car quarter pillar lower body structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a quarter-pillar lower body structure for improving the bending rigidity of the rear part of a passenger car around the rear wheels.

In the past, due to the low bending rigidity of the rear part of the body of a passenger car centered around the rear wheel, the load inside the luggage sometimes caused distortion in the quarter panel on the side of the luggage.

However, a structurally simple and economical means for improving this rear bending rigidity has not yet been established.

In this invention, a roof side inch panel is installed inside the quarter pillar to form a closed cross section to reinforce the quarter pillar and extend the lower end of the reinforcement to the side of the floor panel. A reinforcing member is provided on the outside of the floor side member in the vehicle width direction, and is connected to the side surface and the lower surface of the floor, and the extending end of the reinforcement is coupled to the reinforcing member, so that the extending end, the reinforcing member, and the roof are connected to each other. By forming a closed cross-section joint with the lower end of the side inch panel, the bending rigidity around the rear wheel is strengthened.

Next, the present invention will be explained with reference to the illustrated embodiment. The quarter pillar 1 is composed of a quarter panel 2, a roof side inner panel 3, and a reinforcement 4.

The lower part of the quarter panel 2 is joined to the arch portion 5a of the rear floor side panel 5, and the general surface extending rearward forms a side wall of the luggage.

On the other hand, the lower end of the roof side inner panel 3 is joined to the side surfaces of the floor side panel 5 and the floor panel 6.

A beam reinforcement 4 is provided between the quarter panel 2 and the roof side inner panel 3, and at the quarter pillar 1, both the panels 2 and 3 sandwich the reinforcement 4 as shown in FIG. It is joined at both ends to form a closed cross section.

Reinforcement 4 is roof side inner panel 3
While forming a closed cross section, its lower edge extends to a position along the side surface of the floor panel 6.

As shown in FIGS. 1 and 3, the outer side surface in the vehicle width direction of the rear floor side member 7, which has a U-shaped cross section and supports the floor panel 6 at the rear of the vehicle, is arranged in the longitudinal direction of the vehicle.
A reinforcing member 8, also having a U-shaped cross section, is installed perpendicularly to the rear floor side member 7, and one end and upper surface of the reinforcing member 8 are joined to the side surface of the rear floor side member 7 and the lower surface of the floor panel 6, respectively, by welding or the like.

Moreover, this bottom surface is joined to the upper surface of the floor side panel 5.

The other end of the reinforcing member 8 extends further to the side than the side surface of the floor panel 6, and the lower extending end of the reinforcement 4 is joined to the upper edge of the end by welding or the like.

The extended end of the reinforcement 4, the lower end of the roof side inner panel 3 joined to the floor 6, and the reinforcing member 8 form a closed cross section.

By the way, the conventional glue reinforcement has the effect of reinforcing the quarter pillar 1 and the part directly below it, and its lower end is located at the part indicated by line A in Figure 1. When a bending load centered on the rear wheel was applied due to the load inside the luggage, the general surface of the quarter panel and the wheel house could become distorted due to the lack of body rigidity.

In contrast, in the present invention, the closed section formed at the lower part of the quarter pillar 1 by the reinforcement 4 and the closed section formed at the floor panel 6 by the rear floor side member 7 are also formed in the floor panel by the reinforcement member 8. This strengthens the rigidity of the lower part of the quarter pillar over a wide area, creating a body structure that is extremely resistant to rear bending deformation, torsion, etc., and prevents distortion of the quarter panel 2 and wheel house due to loads inside the luggage. occurrence is prevented.

Moreover, the present invention structurally extends the reinforcement 4 to the floor surface, and the reinforcement member 7 with a U-shaped cross section is attached to the floor side member 8 to take the lower end of the reinforcement.
Since the vehicle is only interposed between the vehicle and the vehicle, the increase in weight and cost of the vehicle can be minimized.

Furthermore, in the present invention, the extending end of the reinforcement 4 is connected to the rear floor side member 8 only via the reinforcing member 8, and the reinforcement 4 and the lower end of the quarter panel 2 are not connected, so that the rear suspension The deformation of the quarter panel 2 caused by the input to the Karaya floor side member 8 being transmitted to the lower part of the quarter panel 2 is minimized as much as possible.

In the above embodiment, the reinforcing member 8 and the lower part of the quarter panel 2 are connected by the rear floor side panel 5, but due to its deformation, the thin panel 5 is transmitted from the rear floor side member 7 via the reinforcing member 8. It absorbs the input and reduces the transmission of the input to the quarter panel 2.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a partial side view of a quarter pillar of a passenger car, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line -■ in Fig. 1. ■ Line cross-sectional view, Figure 4 is the 1st
It is a sectional view taken along the line IV-IV in the figure.

Claims (1)

[Scope of utility model registration request] The lower part of the reinforcement of the quarter pillar of a passenger car consisting of a quarter pillar, a roof side inch panel, and an reinforcement provided between these extends to the side of the floor panel, while the rear floor side that supports the floor A reinforcing member is provided on the outside of the member in the vehicle width direction, and is connected to the side surface and the lower surface of the floor, and the extending end of the reinforcement, the reinforcing member, and the lower end of the roof side inch panel form a closed cross-section joint. ,
A quarter-pillar lower body structure for a passenger car, characterized in that a reinforcement is connected to a rear floor side member via a reinforcing member.