JPH0352609Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to the rear body structure of an automobile, and specifically relates to a reinforcing structure near the rear pillar.

(Prior art) In general, the vicinity of the rear pillar of an automobile is subject to shock loads when the door is closed, vibration loads from the rear suspension, etc., and is also where a belt anchor device is attached, so it is necessary to maintain sufficient rigidity and strength. It is necessary to secure it.

For this reason, conventionally, for example,
As disclosed in the above publication, a structure is sometimes adopted in which a reinforcement is provided in the rear pillar and extends from the wheel house to the belt anchor attachment part to reinforce the rear pillar. Also, Mikiakiaki
Japanese Patent No. 57-63784 discloses that a reinforcement is joined to the outer surface of a rear pillar inner from its upper side to its lower front edge to form a closed cross section.

(Problem to be solved by the invention) However, among the two conventional reinforcement structures mentioned above, the former can increase the rigidity of the area around the belt anchor attachment part of the rear pillar to a certain extent; The rigidity strength has not yet been sufficiently increased.

In addition, the latter uses a much larger reinforcement than the former, but this reinforcement is joined to the outer surface of the rear pillar inner.
The reality is that the lower end is simply joined to the wheel house, and it does not have enough rigidity to withstand twisting of the vehicle body.

The present invention has been devised in view of these points, and its purpose is to improve the above-mentioned reinforcing structure in particular so as to sufficiently increase the rigidity and strength of the entire area around the rear pillar.

(Means for Solving the Problems) In order to achieve the above object, the solution means of the present invention is to provide a rear pillar reinforcement that forms a closed cross section together with the rear pillar inner in the rear pillar, and the upper end of the rear pillar reinforcement. Connect to the upper corner of the vehicle body and the lower end to the wheel house. Further, a belt anchor reinforcement having, on a closed cross section of the rear pillar reinforcement, a vertical wall portion that divides the closed cross section into front and rear halves, and a joint portion that is continuous with the vertical wall portion and is joined to the rear pillar inner. and a belt anchor nut is provided at the joint portion of the belt anchor reinforcement, and the vertical wall portion of the belt anchor reinforcement connects the vertical wall portion of the vertical wall portion to the vertical wall portion of the A guide surface is configured to guide the air conditioner duct, wire harness, etc. when they are inserted into the space on the opposite side to the side where the belt anchor nut is arranged.

(Function) With the above configuration, in the present invention, the area from the corner part of the upper part of the vehicle body on the upper end side of the rear pillar to the wheel house on the lower end side of the rear pillar is reinforced by the closed section structure of the rear pillar reinforcement. The closed cross section of is 2 at the vertical wall of the belt anchor reinforcement.
In addition to having a structure in which the belt anchor reinforcement is divided into joints, a belt anchor nut is provided at the joint part of the belt anchor reinforcement with the rear pillar inner. The rigidity and strength of the entire upper and lower adjacent portions can be sufficiently increased.

Further, when inserting an air conditioner duct, a wire harness, etc. into the rear pillar, the vertical wall portion of the belt anchor reinforcement is inserted between the two spaces of the closed cross section partitioned by the vertical wall portion, and the belt It guides the duct, wire harness, etc. to be inserted through the space on the opposite side of the anchor nut arrangement side, making it possible to smoothly insert and arrange these, and prevent damage to the wire harness, etc. due to contact with the belt anchor nut, etc. This means that this can be prevented.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 to 4 show the rear body structure of a four-door automobile according to an embodiment of the present invention, where 1 indicates a body;
Reference numeral 2 denotes a door opening for a rear side door provided at the rear side of the vehicle body 1, and the front edge, upper edge, and rear edge of the door opening 2 are connected to the center pillar 3, the roof side rail 4, and the rear edge, respectively. It is composed of a rear pillar 5.

The rear pillar 5 is formed into a closed cross section by a rear pillar outer 6 and a rear pillar inner 7. The upper end of the rear pillar 5 is connected to the rear end of the roof side rail 4 and the left and right ends of a rear header (not shown) located on the rear edge side of the roof of the vehicle body 1. A trifurcated rear corner portion 8 of the upper portion (roof portion) is formed, and the corner portion 8 is covered with a roof panel 9. Further, on the lower end side of the rear pillar 5, a rear fender panel 10 is provided so as to be joined or integrally formed with the rear pillar outer 6, and a wheel house outer 11 is joined or integrally molded with the rear pillar inner 7. It is provided. Above rear fender panel 1
0 and the outer end of the wheel house outer 11 are joined to each other, and the lower end of the wheel house outer 1
A wheel house inner 12 having a support portion 12a for supporting the upper part of the strut of the rear suspension member is connected to the inner end of the wheel house 1.

A rear pillar reinforcement 14 is provided in the rear pillar 5 and is joined to the rear pillar inner 7 to form a closed cross section 13 together with the rear pillar inner 7. The upper end of the rear pillar reinforcement 14 is located at a corner of the upper part of the vehicle body. The lower end extends below the rear pillar 5 and is joined to the wheel house outer 11. Further, a belt anchor reinforcement 15 is disposed within the closed section 13 of the rear pillar reinforcement 14 at the vertical center of the rear pillar 5.
The vertical wall portion 15a that divides the vertical wall portion 1 into two in the front and back
a first joint part 15b that is bent forward at a substantially right angle from the vehicle outer side end of 5a and joined to the rear pillar reinforcement 14; and the vertical wall part 15.
has a second joint part 15c that is bent rearward at a substantially right angle from the inner side end of the vehicle and is joined to the rear pillar inner 7, and the tip of the second joint part 15c is connected to the rear pillar inner 7 and the rear pillar rein. It is fixed in a sandwiched state at the rear joint with the forcement 14.

Further, a belt anchor nut 1 is provided at the joint portion 15c of the belt anchor reinforcement 15.
6 is fixed, and the belt anchor nut 16
Although not shown, a belt anchor bolt connected to the seat belt for the rear seat is screwed into the vehicle from inside the vehicle. The belt anchor reinforcement 15, belt anchor nut 16, and belt anchor bolt described above constitute a belt anchor device 17 that fixes and supports a seat belt for a rear seat on the rear pillar 5. Also, belt anchor reinforcement 1
Of the two spaces 13a and 13b of the closed cross section 13 partitioned by the vertical wall portion 15a of No.
Although not shown, a duct for an air conditioner, a wire harness for a butt clamp, etc. are inserted therethrough, and the vertical wall portion 15a forms a guide surface for guiding these during insertion.

Therefore, in the above embodiment, a rear pillar reinforcement 14 that forms a closed cross section 13 together with the rear pillar inner 7 is provided in the rear pillar 5, and the rear pillar reinforcement 1
The upper end of 4 is extended and connected to the corner part 8 of the upper part of the vehicle body, and the lower end thereof is extended and joined to the wheel house (wheel house outer 11). 8 and the wheel house are effectively and strongly reinforced so that they are integrated with each other, and the rigidity of the entire area around the rear pillar 5 can be sufficiently increased.

The belt anchor nut 16 of the belt anchor device 17 also has a vertical wall portion 15 that divides the closed section 13 of the rear pillar reinforcement 14 into two in the front and back.
Belt anchor reinforcement 1 with a
5, the external force acting on the belt anchor nut 16 is not only supported by the rear pillar inner 7 but also applied to the vertical wall of the belt anchor reinforcement 15. It is also supported by the rear pillar reinforcement 14 via the belt anchor 15a, and is ultimately supported by the entire structure of the closed cross section 13, thereby ensuring sufficient support strength for the belt anchor device 17.

Further, the vertical wall portion 15a of the belt anchor reinforcement 15 is located on the side opposite to the side where the belt anchor nut 16 is arranged, of the two spaces 13a and 13b of the closed section 13 partitioned by the vertical wall portion 15a. When inserting an air conditioner duct, wire harness, etc. into the space 13a, it guides the insertion, so this insertion work can be carried out smoothly, and the wire harness can be easily inserted by contact with the belt anchor nut 16 or belt anchor bolt. etc. can be prevented from being damaged.

(Effect of the invention) As described above, according to the rear vehicle body structure of the present invention, the upper end of the rear pillar reinforcement, which forms a closed cross section with the rear pillar inner, is connected to the corner of the upper part of the vehicle body, and the lower end is connected to the wheel house. In addition, the closed cross section of the rear pillar reinforcement is divided into two by the vertical wall of the belt anchor reinforcement, and has a joint, and the rear pillar inner of the belt anchor reinforcement is connected to the rear pillar inner of the belt anchor reinforcement. Since the belt anchor nut is provided at the joint, the support rigidity of the belt anchor device can be sufficiently increased, and the rigidity of the entire rear pillar and its upper and lower adjacent parts can be sufficiently increased.
Furthermore, when inserting ducts, wire harnesses, etc. into the rear pillar, these are guided by the vertical wall of the belt anchor reinforcement, so this insertion work can be carried out smoothly, and the belt anchor etc. It also has the effect of preventing damage to the wire harness etc. due to contact.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing the overall structure of the rear body of an automobile, and FIG.
1, FIG. 3 is a side view showing the arrangement of the rear pillar reinforcement, and FIG. 4 is a sectional view taken along the line - in FIG. 3. 5... Rear pillar, 7... Rear pillar inner,
8... Corner portion, 11... Wheel house outer, 13... Closed section, 14... Rear pillar reinforcement, 15... Belt anchor reinforcement, 17... Belt anchor device.

Claims (1)

[Scope of utility model registration request] A rear pillar reinforcement that forms a closed cross section with the rear pillar inner is provided in the rear pillar.The upper end of the rear pillar reinforcement is connected to the upper corner of the vehicle body, and the lower end is connected to the wheel house. A belt anchor reinforcement is provided on the closed cross section of the reinforcement, and has a vertical wall portion that divides the closed cross section into two in the front and rear, and a joint portion that is continuous with the vertical wall portion and is joined to the rear pillar inner. A belt anchor nut is provided at the joint portion of the belt anchor reinforcement, and the vertical wall portion of the belt anchor reinforcement has two spaces with a closed cross section partitioned by the vertical wall portion. A rear body structure for an automobile, comprising a guide surface that guides an air conditioner duct, a wire harness, etc. when they are inserted into a space opposite to the side where the belt anchor nut is arranged.