JPH045181A - Center pillar structure of sashless door type car - Google Patents

Abstract

PURPOSE:To enlarge the side visibility of a crew and to improve the an open feeling by forming the second pillar above the door waist; line like a pipe extending over the upper end of the first pillar and a roof side rail and making the lengthwise size of the second pillar smaller than that of the first pillar. CONSTITUTION:A center pillar main body 20 disposed extending over a side sill 2 of a car body main body 1 comprises the first pillar 21 disposed below the door waist line D.W. and the second pillar 22 disposed extending over the upper end of the pillar 21 and the roof side rail 3. The second pillar 22 is formed like a pipe by drawing, and the pillar 22 is formed in such a manner as to have a width smaller than the lengthwise size of the pillar 21. The side wall of the outside of a car is formed in such a manner as to have a mountain- like section similarly to an outer panel 25, hat a weatherstrip can be installed on both inclined surfaces thereof. The lower end of the second pillar 22 is formed with an inclination according to the inclination of an upper end wall 27 of the pillar 21 to interface with the upper end wall 27.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a center pillar structure for a buttressless door type vehicle.

BACKGROUND ART FIGS. 10 to 13 show a conventional structure, in which I is a vehicle body, and a center pillar 4 is disposed astride a side sole 2 and a roof side rail 3. This center pillar 4 consists of an inch panel 5 with flanges 6 formed on the front and rear edges, and an outer panel 7 that also has flanges 8 formed on the front and rear edges, and these flanges 6.8 are overlapped and spot welded to form a closed cross section. It is. Outer panel 7
is formed into a mountain-shaped cross section, and the retainer 9 is joined across the slope of the mountain to form the body side weather strip lO.
It is equipped with. This body side weather strip 10 is installed from the roof side rail 3 to a portion slightly below the door waist line D-W formed by the upper end of the door body of the center pillar 4, front pillar 11° and rear pillar 12, To sole the inside and outside of a vehicle in close contact with the door window panel P when the door is closed. 1st O~
13 is the roof panel, 14 is the drip channel 1.1
5 indicates a drip molding. This similar structure is, for example, 1
Published by Nissan Motor Co., Ltd. in May 1989 (7) rNISSAN Skyline Maintenance Instructions.

Problems to be solved by the invention Inner panel of center pillar 4 5. Outa i<Nel 7
Each flange 6.8 of these inner panels 5.
Since the upper and lower ends of the outer panel 7 are integrally molded, the longitudinal width g of the center pillar 4 becomes relatively large. As a result, the center pillar 4 obstructs the side view between the front and rear door window panels P, significantly impairing the sense of openness.

Therefore, the present invention provides a center pillar structure for a satsuru-door type vehicle that can reduce the longitudinal width of the on-road half of the center pillar as much as possible, expand the lateral visibility of the occupants, and enhance the sense of openness. It is something to do.

Means for Solving the Problem In the center pillar structure placed between the side rail and the roof side rail of a satsuru door type car, the center pillar structure is placed below the waist line formed by the upper end of the door body.
A first pillar composed of an inner panel having flanges formed on the front and rear edges and an outer panel also having flanges formed on the front and rear edges is arranged, and the first pillar straddles the upper end of the first pillar and the roof side rail, A pipe-shaped second pillar having a smaller longitudinal width than the first pillar is connected and arranged.

After joining the flanges on the front and rear edges of the inner panel and outer panel and assembling the first pillar to the vehicle body, align the lower end of the second pillar with the upper end of the first pillar, and align the lower end of the second pillar with the upper end of the first pillar. The second pillar is connected across the first pillar upper end and the roof side rail, with the upper end of the pillar aligned with the roof side rail.

Example Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIGS. 1 to 7, 20 is a side sol 2 of the vehicle body 1.
The first pillar 2 is a center pillar body disposed astride the roof side rail 3, and is disposed below the door waist line D-W formed by the upper end of the door body.
1, and a second pillar 22 connected and arranged astride the upper end of the first pillar 21 and the roof side rail 3.

The first pillar 21 connects an inner panel 23 having flanges 24 formed on its front and rear edges, and an outer panel 25 having flanges 26 formed on its front and rear edges.
4.26 are polymerized and spot welded to form a closed cross section, and this first pillar 21 is butted onto the side sol 2 and joined by spot welding, similar to the connection of the lower end of a conventional center pillar. . In this embodiment, the inner panel 23. Each flange 24, 26 of the outer panel 25 is formed in series by going around the upper edge. Further, the upper end of the outer panel 25 is closed in a bag-like manner to form an upper end wall 27, and the upper end wall 27 is sloped forward and sideways to facilitate connection of the second pillar 22. be.

The second pillar 22 is, for example, made of aluminum and drawn into a vibrator shape. This second pillar 22 is formed to have a width smaller than the longitudinal width ρ of the first pillar 21, specifically, in this embodiment, it is formed to have the same cross section as the cross section of the outer panel 25 of the first pillar 21 excluding the flange 26. and the width dimension ρ,
At the same time, the side wall on the outside of the vehicle is formed to have a chevron-shaped cross section similarly to the outer panel 25, and first grooves are formed on both inclined surfaces thereof.
The structure is similar to the conventional one shown in FIG. 1 so that the body side weather strip IO can be attached.

Further, the lower end of the second pillar 22 is formed to be inclined according to the slope of the upper end wall 27 so that it can be aligned with the upper end wall 27, and a fixing bracket is attached to the front side wall.
8 is aligned so that it protrudes beyond the lower edge. On the other hand, at the upper end of the second pillar 22, a pair of brackets 29 are provided protrudingly spaced apart in the vehicle width direction, and at the same time, a pair of brackets 29 are provided at the front and rear edges to engage with the lower flange 3a of the roof side rail 3. A slit 30 is formed for this purpose.

On the other hand, a recess 19a is formed in the outer panel 16 at the lower side of the roof side rail 3 to form the bracket 29.2.
A collar 32 is arranged concentrically with a bolt insertion hole 31 between an outer panel 16 and an inner pawl 17 of this connector 19.

The second pillar 22 has a bracket 29 at the upper end.
is fitted into the connecting portion 19 of the roof side rail 3, and the slit 30 is engaged with the lower flange 3a of the roof side rail 3 for positioning. From the front of the pillar 21, its upper end wall 2
7 to engage. At this time,
The upper end wall 27 is formed to be inclined forwardly and laterally, and the lower end of the second pillar 22 is also formed to be inclined in accordance with the inclination of this upper end wall 27, so that the alignment between the two is achieved by the above-mentioned grinding. It's done smoothly.

Therefore, the bracket 28 at the lower end of the second pillar 22 is
A bolt 34 is attached to a weld nut 33 which overlaps the front side wall of the outer panel 25 of the first pillar 21 and is arranged on the back surface thereof.
At the same time, the flange 26 on the upper edge of the first pillar 21 is overlapped with the inner wall of the second pillar 22, and the bolt 36 is inserted into the weld nut 35 arranged on the back surface of the second pillar 22.
Screw them together and tighten. Next, the bolt 37 is inserted into the upper end bracket 29 and the collar 32 of the connecting portion 19 of the roof side rail 3, and the nut 38 is fastened.
The pillar 22 is connected across the upper end of the first pillar 21 and the roof side rail 3.

In the embodiment described above, the second pillar 22 is pultruded into a pipe shape, but as shown in FIG.
An engaging stepped portion 22c may be formed on the inner panel 22b side, and the inner panel 22b and outer panel 22a may be fitted together and the joints may be welded to form a seamless pipe shape.

Further, as shown in FIG. 9, the second pillar 22 has the same cross-sectional shape as the first pillar 21 except for the front and rear flanges 24.
Positioning slits 39 are provided to engage flanges 24 and 26 on the upper edge of 1, and positioning in the vehicle width direction is performed by engagement of these slits 39 and flanges 24 and 26,
In addition, positioning in the front-rear direction is performed using the upper end wall 27 and each inclined surface of the lower end of the second pillar 22, and the first pillar 22 is positioned in the front-rear direction. The second pillars 21,22 may be properly aligned and connected.

Effects of the Invention As described above, according to the present invention, the second pillar located above the door waist line is formed into a pipe shape and has a smaller longitudinal width than the first pillar. The side visibility can be expanded and the feeling of openness can be improved, and you can expect the original effects of a satsureless door.

[Brief explanation of the drawing]

FIG. 1 is a side view of an automobile adopting an embodiment of the present invention;
Figure 2 is 1. A side view showing the connection part of the second pillar, FIG. 3 is an exploded perspective view of the same, and FIG. 4.5 is IV-IV in FIG. 3.
6 is an exploded perspective view showing the connection between the second pillar and the roof side rail, FIG. 7 is a sectional view of the main part, and FIG. 9 is a sectional view showing different examples of the connection between the first pillar and the second pillar, FIG. 10 is a side view of an automobile adopting a conventional structure, and FIG. .1.2 is a sectional view taken along lines AA and BB in FIG. 10, and FIG. 13 is a perspective view showing the connection between the center pillar and the roof side rail of the same structure. 1... Vehicle body, 2... Side 7 rails, 3... Roof side rail, 20... Center pillar, 21...
1st pillar, 22... 2nd pillar, D... door body. Figure 1 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] (1) In a center pillar structure placed between the side sole and roof side rail of a sashless door type vehicle, an inner panel has flanges formed on the front and rear edges below the waistline formed by the upper end of the door body. and,
A first pillar consisting of an outer panel having flanges formed on the front and rear edges thereof is disposed, and a pipe having a front and rear width smaller than that of the first pillar is disposed astride the upper end of the first pillar and the roof side rail. A center pillar structure for a sashless door type vehicle characterized by a second pillar having a shape connected to the center pillar.