JPH018459Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a rear body structure of an automobile, and more particularly to a structure in which a storage portion for a seat belt retractor is suitably formed.

(Prior Art) Generally, in a car with a body-like body such as a coupe type car, the strength of the rear body is weak, and therefore,
In the event of a rear collision, the strength of the rear pillar and rear fender alone cannot withstand the impact load, and the vehicle body behind the center pillar may collapse, and the deformation of the vehicle body may compress the interior space of the vehicle and cause damage to the occupants. Therefore, in the past, for example,
As disclosed in Publication No. 77318, a reinforcement mate extending in the vertical direction of the vehicle body is provided in the rear pillar that constitutes the rear vehicle body, and a reinforcement extending in the longitudinal direction of the vehicle body along the belt line is provided. It has been proposed that the rear body of the vehicle be strengthened by attaching it to the rear body.

(Problem to be solved by the invention) In this way, the rear pillar has reinforcements arranged in the vertical and horizontal directions of the vehicle body.
When installing a seatbelt retractor, the manner in which the reinforcement is installed must be carefully considered to ensure that the reinforcement does not suffer from loss of cross-section, resulting in a decrease in strength. . Further, from the viewpoint of tensile strength when the seat belt is stretched, it is preferable to utilize these reinforcements effectively.

This invention was made in view of these points,
It is an object of the present invention to suitably form a seat belt retractor storage section.

(Means for Solving the Problems) The present invention provides a rear vehicle body structure having a first reinforcement extending in the vertical direction of the vehicle body and a second reinforcement along the belt line inside the rear pillar. Focusing on the void in the closed cross section formed by the pillar inner panel and the pillar inner panel, a joint member is arranged within this closed cross section, and the closed cross section defined by the joint member and the side wall of the first reinforcement is The empty space is used to store the seat belt retractor.

(Example) Examples of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention, and as shown in FIG. 1, a seat belt retractor 2 is disposed inside a rear pillar 1 of an automobile. FIG. 2 shows a portion of the rear pillar where the retractor 2 is disposed with the pillar outer panel removed, and FIG. 3 shows a cross section taken along the - line in FIG. 2.

As shown in the figure, inside 1c of the rear pillar 1, which is composed of a pillar inner panel 1a and a pillar outer panel 1b, there are a reinforcement 3 extending in the vertical direction of the vehicle body, a reinforcement 4 extending in the longitudinal direction of the vehicle body, and a reinforcement 3 extending in the vehicle body longitudinal direction. Both reinforcements and a reinforcement 5 extending diagonally to form a triangle are provided, and each reinforcement 3, 4, 5 is joined to the pillar inner panel 1a by spot welding or the like.
In addition, each of these reinforcements 3, 4, 5
are joined to each other by spot welding or the like.

Reinforcement 3 extending in the vertical direction of the vehicle body
As shown in Figure 3, the pillar inner panel 1
It is joined to a to form a box-shaped closed section,
The reinforcement 4 extends toward the rear of the vehicle from the side wall 3a on the rear side of the vehicle. The reinforcement 4 is also joined to the pillar inner panel 1a to form a box-shaped closed section, and the end of the side wall 4a on the outer panel side is the same as the end of the side wall 3b of the reinforcement 3 on the outer panel side. It is fixed by spot welding. Further, the ends of the upper wall 4b and the lower wall 4c of the reinforcement 4 are fixed to the side wall 3a of the reinforcement 3 by spot welding or the like.

Here, in a space 4d within a closed cross section formed by the reinforcement 4 and the panel 1a, one end of which is closed by the side wall 3a of the reinforcement 3, this space 4d is divided. A knot member 6 is provided. As shown in FIG. 3, this joint member 6 has a groove-shaped cross-sectional shape such that both side walls 6a and 6b are in contact with the pillar inner panel 1a and the pillar outer panel 1b, respectively. It has a length that becomes a low wall 4c. The joint member 6 is disposed at a predetermined distance from the side wall 3a of the reinforcement 3 toward the rear of the vehicle body, and is fixed to the inner panel 1a and the reinforcement 4 by spot welding or the like.

In this way, the side wall 3 of the reinforcement 3
The space defined by the section a and the joint member 6 is the storage section 2a for the seat belt retractor 2. That is, as shown in FIG. 3, a substantially rectangular retractor 2 is housed in this housing part 2a, and a pillar inner panel on which a surface 2b of the retractor 2 on which a seatbelt pull-out part is located is located. A substantially square opening 1d is provided in the portion 1a, thereby allowing the surface 2b of the retractor to face the interior of the vehicle. This retractor 2 is fixed to the low wall 4c of the reinforcement 4 at its bottom surface by an anchor bolt or the like.

(Effect of the invention) In the rear vehicle body structure of the present invention constructed as described above, the retractor storage portion is formed in the empty space within the closed cross section formed by the reinforcement extending in the longitudinal direction of the vehicle body and the pillar inner panel. , the retractor storage portion can be formed with a simple configuration without changing the layout of the reinforcement. Furthermore, since the seat belt tensile force acting on the retractor can be made to take over the reinforcement, it is possible to improve the tensile strength when the seat belt is pulled. Furthermore, since the knot members are provided, sufficient reinforcement strength by reinforcement can be ensured, which is preferable.

[Brief explanation of the drawing]

Figure 1 is a schematic side view of a car with the front section omitted;
FIG. 2 is a schematic side view showing an embodiment of the present invention, and FIG. 3 is a sectional view taken along the line -- in FIG. 1a, 1b...Panel, 2...Retractor, 2
a... Retractor storage section, 3, 4... Reinforcement, 3a... Side wall, 6... Joint member.

Claims (1)

[Scope of utility model registration request] Inside the rear pillar, which is composed of a pillar inner panel and a pillar outer panel at the rear of the vehicle body, a first reinforcement is fixed to the pillar inner panel and extends in the vertical direction of the vehicle body, and a first reinforcement is fixed to the pillar inner panel and extends in the vertical direction of the vehicle body. In the rear vehicle body structure of an automobile, the second reinforcement horizontally extends from the second reinforcement toward the rear of the vehicle body. A joint member is provided, one end of which is fixed to the reinforcement and the pillar inner panel, and extends substantially in the vertical direction of the vehicle body, and the joint member and the side wall portion of the first reinforcement facing the closed cross section A rear body structure for an automobile, characterized in that a space in the divided closed section is used as a seat belt retractor storage section.