JP6060438B2 - Automotive pillar superstructure - Google Patents

Description

  The present invention relates to an upper structure of a pillar that supports a roof side rail extending in the front-rear direction of an automobile.

Patent Document 1 discloses a technique related to the above-described automobile pillar superstructure.
As shown in FIG. 9A, a pillar upper portion 100 in an automobile described in Patent Document 1 includes a horizontal cylindrical portion 100y that forms part of a roof side rail and extends in the vehicle front-rear direction, and a vertical cylindrical pillar main body. It is formed in the side surface substantially T shape from the part 100m.
The pillar upper portion 100 includes an outer panel 101 having a substantially T-shaped side surface and an inner panel 103 having a substantially T-shaped side surface. As shown in FIG. 9B, a flange portion 101f at the edge of the outer panel 101 is provided. Is joined to the flange portion 103 f at the edge of the inner panel 103. A reinforcing reinforcement 105 is disposed in the space formed by the outer panel 101 and the inner panel 103 so as to cross the space. A flange portion 105f is formed at the edge of the reinforcement 105, and the flange portion 105f is sandwiched and fixed between the flange portions 101f and 103f of the outer panel 101 and the inner panel 103 (FIG. 9B). reference).

JP-A-8-310443

  In the above-described pillar upper structure, the outer panel 101, the inner panel 103, and the reinforcing reinforcement 105 are joined at the positions of the flange portions 101f, 103f, and 105f formed at the respective edge portions, and other positions. Are not connected to each other. In this structure, in order to improve the strength of the pillar upper part 100, it is necessary to increase the thickness of the reinforcement 105 or the like, or to add a new reinforcing member between the reinforcement 105 and the outer panel 101, which increases the cost. .

  The present invention has been made to solve the above problems, and the problem to be solved by the present invention is to improve the strength of the upper part of the pillar without increasing the thickness of the reinforcement or the like. .

The above problems are solved by the following invention.
According to the first aspect of the present invention, there is provided a pillar that supports a roof side rail that is erected at an end position of a doorway that is opened and closed by a slide door and extends in the vehicle front-rear direction, and is provided on the upper side of the doorway. An upper pillar structure of an automobile provided with an upper rail for guiding front and rear slides, wherein the upper portion of the pillar includes an outer panel, an inner panel, and a reinforcement, and a flange portion formed on an edge of the outer panel and the inner panel The flange portion formed on the edge of the reinforcement is sandwiched between the flange portions formed on the edge, and the flange portions are joined to each other, and the reinforcement is at least in the upper center of the pillar. A first receiving surface formed on a portion other than the flange portion of the reinforcement. Superimposed on the upper rail supporting surface of the outer panel is configured such that the upper rail is connected to the overlapped portion, also, the reinforcement has a second receiving surface is formed at a portion other than the flange portion The second receiving surface is overlapped with the inflator supporting surface of the inner panel, and the airbag inflator is connected to the overlapping portion .

According to the present invention, the reinforcement is arranged at least in the upper center of the pillar, and the flange portion of the reinforcement edge is sandwiched and joined between the flange portion of the outer panel and the flange portion of the inner panel. ing. Further, since the outer panel and the reinforcement are connected by a portion other than the flange portion, that is, the upper rail support surface and the first receiving surface, the strength of the upper portion of the pillar is improved.
Furthermore, since the upper rail is connected to the upper rail support surface of the outer panel and the first receiving surface of the reinforcement, the outer panel and the reinforcement are reinforced by the upper rail. Thereby, the intensity | strength in the upper part of a pillar improves.
Therefore, the strength of the upper part of the pillar can be improved without increasing the thickness of the reinforcement or the like and without adding another reinforcing member.
Further, since the inner panel and the reinforcement are connected to each other at the position of the flange portion and other portions, that is, the second receiving surface and the inflator support surface, the strength of the upper portion of the pillar is improved. .
Furthermore, since the inflator is connected to the inflator support surface of the inner panel and the second receiving surface of the reinforcement, the support strength of the inflator is also improved.

According to the invention of claim 2 , the upper part of the pillar is formed in a substantially T-shaped side surface from a horizontal cylinder part that constitutes a part of the roof side rail and extends in the vehicle front-rear direction and a vertical cylindrical pillar body part. The reinforcement includes flange portions at the upper end edge and the lower end edge, and is configured to traverse the horizontal tube portion at the top of the pillar, and extends at least from the front side to the rear side of the pillar main body portion. Features.
According to the invention of claim 3 , the reinforcement is configured to traverse the upper end portion of the pillar main body portion, and the flange portions provided at the front and rear of the lower end edge of the reinforcement body respectively constitute an outer panel and an inner portion constituting the pillar main body portion. It is characterized by being sandwiched between flange portions with the panel.

  According to the present invention, the strength of the upper part of the pillar can be improved without increasing the thickness of the reinforcement or the like.

It is a model perspective view of the body of a motor vehicle provided with the pillar upper structure concerning this Embodiment 1 of the present invention. It is a perspective view (II arrow enlarged view of FIG. 1) showing the upper part of the said pillar. It is a perspective view showing the pillar upper structure of the state where the outer panel was removed. It is a side view showing the pillar upper structure of the state which removed the outer panel and the reinforcement. It is a VV arrow plane sectional view of FIG. It is a VI-VI arrow cross-sectional view of FIG. It is a VII-VII arrow longitudinal cross-sectional view of FIG. It is a VIII-VIII arrow longitudinal cross-sectional view of FIG. It is the perspective view (A figure) showing the conventional pillar upper structure, and the BB arrow longitudinal cross-sectional view of A figure.

[Embodiment 1]
Hereinafter, the pillar upper structure of the automobile according to the first embodiment of the present invention will be described with reference to FIGS. The pillar upper structure of the automobile according to the present embodiment relates to the upper structure of the C pillar in the one-box vehicle 10.
Here, front and rear, right and left, and top and bottom in the figure correspond to front and rear, left and right and top and bottom of the one box vehicle 10.

<About the outline of the one-box vehicle 10>
Before describing the upper structure of the C pillar, the outline of the one-box vehicle 10 will be described.
As shown in FIG. 1, the one-box vehicle 10 (hereinafter referred to as the vehicle 10) includes a driver's seat entrance / exit (not shown) and a passenger seat entrance / exit 12, and is located behind the passenger seat entrance 12. A central entrance / exit 14 is formed. The driver's seat side entrance / exit and the passenger seat side entrance / exit 12 are opened / closed by a door-shaped front door (not shown), and the central entrance / exit 14 is a slide door 40 (see flat sectional views of FIGS. 5 and 6). It is comprised so that it may be opened and closed by.
As shown in FIG. 1, an A-pillar 15 is provided in front of the passenger seat entrance 12 (driver seat entrance), and the rear side of the passenger seat entrance 12 (boundary with the central entrance 14). B pillar 16 is erected at the position). Further, a C pillar 17 is erected at the rear end position of the central entrance 14, and a vehicle compartment side wall 18 and a rear window 19 are provided on the rear side of the C pillar 17. A D-pillar (not shown) is provided at the rear end position of the one-box vehicle 10.
The left and right roof side rails 21 extending in the vehicle front-rear direction are supported by the left and right A pillars 15, B pillars 16, C pillars 17, and D pillars. A beam-like roof reinforcement (not shown) is passed between the left and right roof side rails 21, and a square roof panel 23 is supported by the left and right roof side rails 21 and the roof reinforcement.

<About the upper structure of the C pillar 17>
As shown in FIG. 2, the upper portion 17 u of the C pillar 17 has a substantially T-shaped side surface from a horizontal cylindrical portion Y that forms part of the roof side rail 21 and extends in the vehicle front-rear direction and a vertical cylindrical pillar main body M. Is formed. As shown in FIG. 2, the rear end of the upper rail 43 of the slide door 40 is attached to the upper portion 17u of the C pillar 17 as shown in FIG. 2, and as shown in FIG. An airbag inflator 53 is attached.
The upper portion 17u of the C pillar 17 includes an outer panel 171 constituting the exterior design of the vehicle 10 as shown in FIG. 2, and a hollow closed cross-section C pillar 17 together with the outer panel 171 as shown in FIGS. The inner panel 173 constituting the upper portion 17u and the reinforcement 175 which is a reinforcing plate of the upper portion 17u of the C pillar 17 are configured.
3 is a perspective view in which the outer panel 171 of the C pillar 17 and the outer panel 21u of the roof side rail 21 are removed in FIG. 2 so that the inside can be seen. FIG. 4 is a perspective view of the reinforcement 175 in FIG. It is a side view showing the state removed.

As shown in FIG. 2, the outer panel 171 is formed in a substantially T-shaped side surface, and is located on the upper edge of the portion constituting the horizontal tube portion Y, that is, on the boundary extension line between the roof side rail 21 and the roof panel 23. An upper edge flange portion 171f is formed on the upper surface. Further, the outer panel 171 has a lower end front flange portion 171e formed in a range from the lower end edge front portion of the portion constituting the horizontal cylinder portion Y to the front end edge of the pillar main body portion M, that is, in the peripheral position of the central entrance 14. Has been. Further, the outer panel 171 includes a lower end rear flange portion in a range from the rear end of the lower end edge of the portion constituting the horizontal cylinder portion Y to the rear end edge of the pillar main body M, that is, in the window frame inner peripheral position of the rear window portion 19. 171d is formed.
Further, as shown in FIG. 2, a recess 171k in which the slide door 40 is accommodated is formed on the front side of the outer panel 171 in front of the center of the pillar main body M. And the upper part of the hollow part 171k of the outer panel 171 is comprised so that the hollow part (illustration number abbreviation) of the outer panel 21u of the roof side rail 21 may be followed. Here, the hollow part of the outer panel 21u of the roof side rail 21 extends substantially linearly up to the position of the B pillar 16 (see FIG. 1) above the central entrance 14.
An upper rail 43 that guides the slide door 40 so as to be slidable in the front-rear direction is attached to a recess portion of the outer panel 21 u of the roof side rail 21 and an upper portion of the recess portion 171 k of the outer panel 171 of the C pillar 17.
Further, an upper rail support surface 171u to which the mounting bracket 43x of the upper rail 43 is bolted is formed at a position away from the flange portions 171f, 171e, and 171d in the recess 171k of the outer panel 171 of the C pillar 17 (FIG. 5). (See the VV arrow cross-sectional view in FIG. 2) and FIG. 7 (see the VII-VII arrow cross-sectional view in FIG. 2).

As shown in FIGS. 3 and 4, the inner panel 173 is formed in a substantially T-shaped side surface like the outer panel 171. In the inner panel 173, as shown in FIGS. 3 and 4, an upper edge flange portion 173f is formed at the upper edge of the portion constituting the horizontal tube portion Y. Further, the inner panel 173 includes a lower end front flange portion 173e and a lower end edge of the portion constituting the horizontal cylinder portion Y in a range from the lower end edge front portion of the portion constituting the horizontal cylinder portion Y to the front end edge of the pillar main body portion M. A lower end rear flange portion 173d is formed in a range from the rear portion to the rear end edge of the pillar main body portion M.
The upper edge flange portion 173f, the lower end front flange portion 173e, and the lower end rear flange portion 173d of the inner panel 173 are joined to the upper end edge flange portion 171f, the lower end front flange portion 171e, and the lower end rear flange portion 171d of the outer panel 171, respectively. It is comprised so that.
Further, as shown in FIG. 4, the inner panel 173 has a front flange portion 173m formed at the front end edge of the portion constituting the horizontal tube portion Y, and a rear flange portion 173b formed at the rear end edge. Yes. The front flange portion 173m and the rear flange portion 173b of the inner panel 173 are joined to the flange portion 21x of the inner panel 21e of the roof side rail 21, respectively.
Further, as shown in FIGS. 5 and 8, etc., an inflator support surface 173u to which a mounting bracket 53z of the airbag inflator 53 is connected is provided on the back side (inner side) of the inner panel 173 with flange portions 173f, 173e, 173d. , 173m and 173b.

Reinforce 175, which is a reinforcing plate of the upper portion 17u of the C pillar 17, crosses the horizontal cylinder portion Y of the C pillar 17 and the upper end portion of the pillar main body M as shown in FIGS. It is comprised so that the upper part of 17 can be reinforced. As shown in FIG. 3, the reinforcement 175 has an upper end edge flange portion 175 f formed at the upper end edge of the portion crossing the horizontal cylinder portion Y, and the front flange portion at the front end edge of the portion crossing the horizontal cylinder portion Y. 175m is formed. The reinforcement 175 is formed with a lower front flange portion 175e in a range from the front end of the lower end of the portion traversing the horizontal cylindrical portion Y to the front end edge of the portion traversing the pillar main body M. A lower end rear flange portion 175d is formed in a range from the lower end edge rear portion of the portion crossing Y to the rear end edge of the portion crossing the pillar main body M.
The upper edge flange portion 175f, the lower end front flange portion 175e, and the lower end rear flange portion 175d of the reinforcement 175 are respectively connected to the upper edge flange portions 173f and 173f of the inner panel 173 and the outer panel 171 as shown in FIGS. 171f, lower end front flange portions 173e and 171e, and lower end rear flange portions 173d and 171d are configured to be joined to each other.
Further, the front flange portion 175m of the reinforcement 175 is configured to be joined to the front flange portion 173m of the inner panel 173 as shown in FIGS.
Further, the reinforcement 175 includes a first receiving surface 175r that overlaps with the upper rail support surface 171u of the outer panel 171 at a position away from the flange portions 175f, 175e, 175d, and 175m, as shown in FIGS. As shown in FIGS. 5 and 8, a second receiving surface 175 s is formed to overlap the inflator support surface 173 u of the inner panel 173.

<Assembly of the upper part 17u of the C pillar 17>
Next, assembly of the upper portion 17u of the C pillar 17 and attachment of the upper rail 43 and the inflator 53 will be described.
In the assembly of the upper portion 17u of the C pillar 17, first, as shown in FIGS. 4 and 5, the front flange portion 173m and the rear flange portion 173b of the portion constituting the horizontal cylinder portion Y of the inner panel 173 are respectively front and rear. The roof side rail 21 is joined to the flange portion 21x of the inner panel 21e.
Next, the reinforcement 175 is set to the inner panel 173 as shown in FIG. That is, the upper edge flange portion 175f, the front flange portion 175m, the lower end front flange portion 175e, and the lower end rear flange portion 175d of the reinforcement 175 are respectively the upper edge flange portion 173f, the front flange portion 173m, and the lower end front flange portion 173e of the inner panel 173. , And the lower end rear flange portion 173d. Further, the second receiving surface 175s of the reinforcement 175 is overlaid on the inflator support surface 173u of the inner panel 173 as shown in FIGS. In this state, the flange portions 173f, 173m, 173e, 173d of the inner panel 173 and the flange portions 175f, 175m, 175e, 175d of the reinforcement 175 are joined by welding or the like.

Next, with the upper rail support surface 171u of the outer panel 171 superimposed on the first receiving surface 175r of the reinforcement 175, as shown in FIGS. 6 to 8, the upper edge flange portion 171f and the lower front flange portion of the outer panel 171 are shown. 171e, the lower end rear flange portion 171d are joined to the inner panel 173 and the upper end edge flange portions 173f and 175f of the reinforcement 175, the lower end front flange portions 173e and 175e, and the lower end rear flange portions 173d and 175d by welding or the like. In this state, the assembly of the upper portion 17u of the C pillar 17 is completed.
As shown in FIGS. 7 and 8, the roof panel 23 is joined to the joining portion of the upper edge flange portion 171 f of the outer panel 171, the upper edge flange portion 175 f of the reinforcement 175, and the upper edge flange portion 173 f of the inner panel 173 in the C pillar 17. The flange portion 23f is joined.
Next, as shown in FIGS. 5 and 7, the mounting bracket 43 x of the upper rail 43 is bolted to the upper rail support surface 171 u of the outer panel 171 of the C pillar 17 and the first receiving surface 175 r of the reinforcement 175. On the indoor side, as shown in FIGS. 5 and 8, the mounting bracket 53 z of the inflator 53 is connected to the inflator support surface 173 u of the inner panel 173 of the C pillar 17 and the second receiving surface 175 s of the reinforcement 175. .

<Advantages of the C-pillar superstructure according to this embodiment>
According to the upper structure of the C pillar according to the present embodiment, the reinforcement 175 is disposed at least in the upper center of the C pillar 17, and the flange portions 175 f, 175 e, 175 d of the edge of the reinforcement 175 are the edges of the outer panel 171. The flange portions 171f, 171e, 171d and the flange portions 173f, 173e, 173d at the edge of the inner panel 173 are sandwiched and joined. Further, since the outer panel 171 and the reinforcement 175 are connected by a portion other than the flange portion, that is, the first receiving surface 175r and the upper rail support surface 171u, the strength of the upper portion 17u of the C pillar 17 is improved.
Further, since the upper rail 43 is connected to the upper rail support surface 171 u of the outer panel 171 and the first receiving surface 175 r of the reinforcement 175, the outer panel 171 and the reinforcement 175 are reinforced by the upper rail 43. Thereby, the strength of the upper portion 17u of the C pillar 17 is improved.
Therefore, the strength of the upper portion 17u of the C pillar 17 can be improved without increasing the thickness of the reinforcement 175 or the like and without adding another reinforcing member.
Further, since the inner panel 173 and the reinforcement 175 are connected to each other by the positions of the flange portions 173f to d and 175f to d, the second receiving surface 175s, and the inflator support surface 173u, the upper portion 17u of the C pillar 17 Strength will be improved.
Furthermore, since the inflator 53 is connected to the inflator support surface 173u of the inner panel 173 and the second receiving surface 175s of the reinforcement 175, the support strength of the inflator 53 is also improved.

<Example of change>
Here, the present invention is not limited to the above-described embodiment, and can be modified without departing from the gist of the present invention. For example, in the present embodiment, an example in which the present invention is applied to the upper portion 17u of the C pillar 17 has been described. However, the present invention can also be applied to the upper portion of the B pillar 16.
Further, in the present embodiment, an example in which a pair of the upper rail support surface 171u of the outer panel 171 and the first receiving surface 175r of the reinforcement 175 is provided, and the mounting bracket 43x of the upper rail 43 is bolted to the upper panel 171 at one location. However, a plurality of sets of the upper rail support surface 171u of the outer panel 171 and the first receiving surface 175r of the reinforcement 175 can be provided, and the mounting brackets 43x of the upper rail 43 can be bolted thereto at a plurality of locations.

10. One box vehicle (vehicle)
17 ··· C pillar 17u ··· Upper Y ··· Horizontal cylinder portion M ··· Pillar body portion 171 · · · Outer panel 171u · · Upper rail support surface 171f · · Upper edge flange portion 171e ·・ Lower front flange 171d ・ Lower rear flange 173 ... Inner panel 173u ・ Inflator support surface 173f ・ Upper edge flange 173e ・ Lower front flange 173d ・ Lower rear flange 173m Front flange 175... Reinforce 175 f .. Upper edge flange 175 e. Lower front flange 175 d Lower rear flange 175 m Front flange 175 r First receiving surface 175 s Second Receiving surface 21 ... roof side rail 40 ... slide door 43 ... upper rail 53 ... Nfureta

Claims (3)

A pillar that supports a roof side rail that extends in the vehicle front-rear direction and is provided at an end position of a doorway that is opened and closed by a slide door, and an upper rail that is provided above the doorway and guides the front-rear slide of the slide door A pillar superstructure of an automobile comprising:
The upper portion of the pillar includes an outer panel, an inner panel, and a reinforcement, and is formed at an edge of the reinforcement between a flange formed at an edge of the outer panel and a flange formed at an edge of the inner panel. The flanges are sandwiched and the flanges are joined together,
The reinforcement is disposed at least in the upper center of the pillar, and a first receiving surface formed in a portion other than the flange portion of the reinforcement is overlapped with the upper rail support surface of the outer panel. The upper rail is configured to be coupled ,
Further, the reinforcement has a second receiving surface formed in a portion other than the flange portion,
An automobile pillar upper structure, wherein the second receiving surface is overlapped with an inflator support surface of the inner panel, and an inflator of an airbag is connected to the overlapping portion . The automobile pillar superstructure according to claim 1,
The upper part of the pillar is formed in a substantially T-shaped side surface from a horizontal cylinder part that constitutes a part of the roof side rail and extends in the vehicle front-rear direction and a vertical cylindrical pillar body part,
The reinforcement includes flange portions at an upper end edge and a lower end edge, and is configured to traverse a horizontal cylinder portion at an upper portion of the pillar, and extends at least from the front side to the rear side of the pillar main body portion. Automobile pillar superstructure. An automobile pillar superstructure according to claim 2 ,
The reinforce is configured to traverse the upper end of the pillar main body, and the flanges provided at the front and rear of the lower end edge of the reinforce are respectively between the flanges of the outer panel and the inner panel that constitute the pillar main body. An automobile pillar superstructure characterized by being sandwiched between two .

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