WO2016080193A1

WO2016080193A1 - Vehicular front pillar

Info

Publication number: WO2016080193A1
Application number: PCT/JP2015/081096
Authority: WO
Inventors: 明義加藤; 彰尾林; 和章北口
Original assignee: 豊田鉄工株式会社
Priority date: 2014-11-17
Filing date: 2015-11-04
Publication date: 2016-05-26
Also published as: JP6263113B2; JP2016094177A

Abstract

Provided is a front pillar that increases the driver's field of view and increases the strength of a joint portion joined to a vehicle body compared with a conventional configuration. A front pillar 10 comprises a front pillar outer 14 with an inner flange 14c joined with an outer flange 20c of a front pillar inner rear 20 in an overlapping state, forming a closed cross section. Thus, compared with a case where, instead of the outer flange of the front pillar inner, an inner flange facing inside in the vehicle width direction is used, the width of the front pillar 10 can be decreased. An inner flange 18c of a roof inner reinforce 18 is joined to the inner flange 14c of the front pillar outer 14 in an overlapping state. Accordingly, when a part of the vehicle body is jointed to the part where the inner flange 18c of the roof inner reinforce 18 and the inner flange 14c of the front pillar outer 14 are overlapped, the strength of the joint portion of the front pillar 10 and the part of the vehicle body can be increased compared with the conventional configuration.

Description

Vehicle front pillar

In the vehicle front pillar, which is a part of the vehicle body, the width of the front pillar is made relatively thin in order to improve the driver's field of view, and the strength at the joint portion joined to the vehicle body is conventionally increased. The present invention relates to a technique that can be improved in comparison.

There is known a vehicle front pillar that includes a front pillar outer that is an outer member of a vehicle body and a front pillar inner that is an inner member of the vehicle body, and forms a closed section in the entire longitudinal direction while the longitudinal direction of the vehicle is the longitudinal direction. Yes. For example, this is the vehicle front pillar described in Patent Document 1. In such a vehicle front pillar, for example, as shown in FIG. 8, the front pillar outer 102 is formed with an inner flange 102 a directed inward in the vehicle width direction, and directed to the front pillar inner 104 in the vehicle width direction outer side. An outer flange 104a is formed, and the front pillar 100 forms a closed cross section by joining the inner flange 102a of the front pillar outer 102 and the outer flange 104a of the front pillar inner 104 in an overlapped state. . As a result, the outer flange 104a of the front pillar inner 104 is joined to the inner flange 102a of the front pillar outer 102 in a state where the outer flange 104a faces outward in the vehicle width direction. The width W of the front pillar 100 is suitably narrowed compared to that facing inward, and the driver's field of view is preferably improved. In FIG. 8, arrow FR is an arrow indicating the front direction in the vehicle longitudinal direction, arrow RR is an arrow indicating the rear direction in the vehicle longitudinal direction, and arrow IN is an arrow indicating the inner direction in the vehicle width direction. Yes, the arrow OUT is an arrow indicating the outer direction in the vehicle width direction, the arrow UP is an arrow indicating the upper direction in the vehicle vertical direction, and the arrow DOWN is an arrow indicating the lower direction in the vehicle vertical direction.

Japanese Patent No. 5141834

In the front pillar 100, as shown in FIG. 8, the front pillar inner 104 includes an inner flange 104b facing inward in the vehicle width direction, and an inner flange 104b between the inner flange 104b and the outer flange 104a. A notch 104c formed so that the flange 104b and the outer flange 104a can be easily bent in opposite directions is provided, and the vehicle body is mounted on the inner flange 102a of the front pillar outer 102 in which the inner flange 104b of the front pillar inner 104 is overlapped. For example, a front header panel 106 is joined.

Further, in the front pillar 100 as described above, the position where the front header panel 106 is joined to the front pillar 100 in order to compensate for the rigidity reduction due to the notch 104c formed in the front pillar inner 104 is as shown in FIG. Since the notch 104c is disposed so as to be within a closed cross section 106a surrounded by the front header panel 106 of the front header panel 106 and the inner flange 102a of the front pillar outer 102, the front header panel 106 in the vehicle front-rear direction. In the pair of front flange 106b and rear flange 106c formed on both sides, the rear rear flange 106c in the vehicle front-rear direction overlaps with the inner flange 102a of the front pillar outer 102 and the inner flange 104b of the front pillar inner 104. Is joined to the portion that fits Ri, front flange 106b of the front in the vehicle longitudinal direction is to be joined only to the inner flange 102a of the front pillar outer 102. For this reason, when the front pillar 100 and the front header panel 106 are joined, there is no joining between the front flange 106b of the front header panel 106 and the inner flange 104b of the front pillar inner 104. There was a problem that the strength of the joint portion was lowered.

The present invention has been made against the background of the above circumstances, and its purpose is to improve the visibility of the driver and to improve the strength of the joint portion joined to the vehicle body as compared with the conventional art. The object is to provide a front pillar for a vehicle.

In order to achieve the above object, the gist of the present invention includes (a) a front pillar outer that is an outer member of a vehicle body, a roof inner reinforcement and a front pillar inner that are inner members of the vehicle body, and A vehicle front pillar that forms a closed cross section in the entire longitudinal direction while the direction is a longitudinal direction, and (b) the front pillar outer and the roof inner reinforcement have an inner side directed inward in the vehicle width direction. (C) the front pillar inner is formed with an outer flange facing outward in the vehicle width direction; and (d) the front pillar is formed of an inner flange of the front pillar outer and the front flange. The closed section is formed by joining the outer flange of the pillar inner member in an overlapping state, and (e It said inner flange of the roof inner reinforcement is to be joined in a state of being superimposed on the inner flange of the front pillar outer.

According to the vehicle front pillar configured as described above, the front pillar has the closed cross section formed by joining the inner flange of the front pillar outer and the outer flange of the front pillar inner in a state of being overlapped. Therefore, for example, the width of the front pillar is suitably narrowed compared to the case where an inner flange directed inward in the vehicle width direction is used instead of the outer flange of the front pillar inner, so that the front pillar from the driver is reduced. The field of view through is improved. Further, since the inner flange of the roof inner reinforcement is joined in an overlapped manner with the inner flange of the front pillar outer, for example, the inner flange of the roof inner force and the inner flange of the front pillar outer are joined. When a part of the vehicle body, for example, a front header panel is joined to the overlapped part, the strength of the joint part where the front pillar and a part of the vehicle body are joined is improved as compared with the conventional art. As a result, the vehicle front pillar improves the driver's field of view and improves the strength of the joint portion joined to the vehicle body as compared with the conventional case.

Preferably, (a) the front pillar inner includes a front pillar inner front disposed on the front side in the vehicle front-rear direction and a front pillar inner rear disposed on the rear side in the vehicle front-rear direction. (B) The front pillar inner front is formed with an inner flange directed inward in the vehicle width direction, and (c) the front pillar inner rear is directed toward the outer side in the vehicle width direction. And (d) the front pillar is formed by joining the inner flange of the front pillar outer and the outer flange of the front pillar inner rear so as to form the closed cross section. (E) A cowl is joined to the inner flange of the front pillar inner front. For this reason, since a cowl is joined to the inner flange of the front pillar inner front provided integrally with the front pillar inner, for example, a notch is provided in the front pillar inner to integrally form an outer flange and an inner flange. Thus, the strength of the joint portion where the front pillar and the cowl are joined is suitably improved as compared with the case where the cowl is joined to the inner flange.

Preferably, (a) the roof inner reinforcement and the front pillar inner rear have a rear overlapping portion where they are overlapped in the vehicle front-rear direction, and the rear pillar outer portion of the front pillar outer An inner flange of the roof inner reinforcement and an outer flange of the front pillar inner rear are joined to the inner flange, and (b) the front pillar inner rear and the front pillar inner front are arranged in the vehicle longitudinal direction. A front overlapping portion, and an outer flange of the front pillar inner rear and an inner flange of the front pillar inner front are joined to the inner flange of the front pillar outer at the front overlapping portion, thereby A cross section is formed. For this reason, in the rear overlapping portion where the roof inner force and the front pillar inner rear are joined together, the front pillar outer, the roof inner force and the front pillar inner rear are joined while overlapping each other. The front pillar outer, the front pillar inner front, and the front pillar inner front are joined while overlapping each other in the front overlapping portion where the front pillar inner rear and the front pillar inner front are joined together. A decrease in the bending strength of the joint portion is suitably suppressed.

Also preferably, the rear overlapping portion is provided with a joint portion in which an inner flange of the roof inner reinforcement joined to a front header panel and an inner flange of the front pillar outer are overlapped. For this reason, since the front header panel can be joined together with the two skeleton members constituting the front pillar, that is, the roof inner reinforcement and the front pillar outer, it is easy to ensure the joining strength and distribute the load to the front header panel. Performance and vehicle body rigidity can be effectively secured.

1 is a perspective view showing a vehicle front pillar to which the present invention is preferably applied. FIG. 2 is a perspective view showing a state where a front pillar outer is removed from the vehicle front pillar of FIG. 1. It is a perspective view which expands and shows the part to which the front pillar and front header panel in the vehicle front pillar of FIG. 1 were joined. FIG. 4 is a sectional view taken along the line IV-IV in FIGS. 1 and 3. FIG. 5 is a cross-sectional view taken along line VV in FIG. 1. FIG. 2 is an enlarged perspective view showing a joined portion of the front pillar and the cowl in the vehicle front pillar of FIG. 1. FIG. 7 is a sectional view taken along the line VII-VII in FIGS. 1 and 6. It is a perspective view which shows the conventional front pillar for vehicles, and is the enlarged view which expanded the part to which the conventional front pillar and the front header panel were joined.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, the drawings are appropriately simplified or modified, and the dimensional ratios, shapes, and the like of the respective parts are not necessarily drawn accurately.

FIG. 1 is a perspective view showing a front pillar (vehicle front pillar) 10 to which the present invention is suitably applied. As shown in FIG. 1, the front pillar 10 is a part of a vehicle body that forms a closed cross section in the entire longitudinal direction while the longitudinal direction of the vehicle is the longitudinal direction, and the rear side of the front pillar 10 in the longitudinal direction of the vehicle. An end portion is connected to a roof side rail which is a part of a longitudinal vehicle body (not shown), and a front end portion of the front pillar 10 in the vehicle front-rear direction is a cowl top panel (cowl) 12 (see FIG. 6) described later. It is connected. In FIG. 1, in the front pillar 10, the other front pillar similar to the front pillar 10 located on the opposite side in the vehicle width direction is omitted. In each drawing including FIG. 1, an arrow FR is an arrow indicating a front side direction in the vehicle front-rear direction, an arrow RR is an arrow indicating a rear side direction in the vehicle front-rear direction, and an arrow IN is an inner direction in the vehicle width direction. , Arrow OUT is an arrow indicating the outer direction in the vehicle width direction, arrow UP is an arrow indicating the upper direction in the vehicle vertical direction, and arrow DOWN is an arrow indicating the lower direction in the vehicle vertical direction is there.

As shown in FIGS. 1 to 3, the front pillar 10 is a front pillar that is a longitudinal skeleton member (outside member of the vehicle body) that is disposed outside the front pillar 10 in the vehicle width direction and extends in the vehicle front-rear direction. The outer 14, a front pillar inner 16 that is a longitudinal skeleton member (an inner member of the vehicle body) that is disposed inside the vehicle width direction of the front pillar 10 and extends in the vehicle front-rear direction, and the vehicle width direction of the front pillar 10 A roof inner reinforcement 18 that is a longitudinal skeleton member (an inner member of the vehicle body) that is disposed inside and extends in the vehicle front-rear direction is integrally provided. 2 is a perspective view showing a state where the front pillar outer 14 is removed from the front pillar 10 shown in FIG. In FIG. 3, a part of the side outer panel (cycle outer) 19 constituting the vehicle body outer plate portion of the front pillar 10 is indicated by a one-dot chain line.

As shown in FIG. 2, the front pillar inner 16 has a longitudinal front pillar inner rear 20 that is disposed on the rear side in the vehicle longitudinal direction of the front pillar inner 16 and extends in the vehicle longitudinal direction, and the longitudinal front. A front pillar inner front 22 fixed to a front end of the pillar inner rear 20 in the vehicle front-rear direction is integrally provided.

The longitudinal front pillar outer 14 is formed from a flat plate member such as a steel plate by, for example, pressing or the like, and the front pillar outer 14 includes the front pillar outer 14 as shown in FIGS. 14, an outer wall portion 14a arranged outside the vehicle width direction and extended in the vehicle front-rear direction, and bent from the lower end portion of the outer wall portion 14a in the vehicle vertical direction toward the vehicle vertical direction lower side. A plate-like lower flange 14b and a plate-like inner flange 14c bent inward in the vehicle width direction from the upper end of the outer wall portion 14a in the vehicle vertical direction are integrally provided.

The long front pillar inner rear 20 is formed from a flat plate member such as a steel plate by, for example, pressing or the like, and the front pillar inner rear 20 has its front as shown in FIGS. A plate-like inner wall 20a disposed inside the pillar inner 20 in the vehicle width direction and extending in the vehicle front-rear direction, and a lower end of the inner wall 20a in the vehicle vertical direction from the lower end toward the lower side. A bent plate-like lower flange 20b and a plate-like outer flange 20c bent from the upper end in the vehicle vertical direction of the inner wall portion 20a toward the outside in the vehicle width direction are integrally provided. Yes.

The front pillar inner front 22 is formed from a flat plate member such as a steel plate by, for example, pressing or the like. The front pillar inner front 22 includes a front pillar as shown in FIGS. 2, 6, and 7. Bending the plate-like wall portion 22a adjacent to the inner wall portion 20a of the inner rear 20 and the lower flange 20b of the front pillar inner rear 20 from the lower end of the wall portion 22a in the vehicle vertical direction. The plate-shaped lower flange 22b and the plate bent from the upper end of the wall 22a in the vehicle vertical direction to the opposite side of the outer flange 20c of the front pillar inner rear 20, that is, inward in the vehicle width direction The inner flange 22c is integrally formed.

The longitudinal roof inner force 18 is formed from a flat plate member such as a steel plate by, for example, pressing or the like, and the roof inner force 18 includes a front pillar as shown in FIGS. Bending the plate-like wall 18a adjacent to the inner wall 20a of the inner rear 20 and the lower flange 20b of the front pillar inner rear 20 from the lower end of the wall 18a in the vehicle vertical direction. The plate-shaped lower flange 18b and the plate bent from the upper end of the wall 18a in the vehicle vertical direction to the opposite side of the outer flange 20c of the front pillar inner rear 20, that is, the inner side in the vehicle width direction. The inner flange 18c is integrally formed.

In the front pillar 10, the roof inner force 18 and the front pillar inner rear 20 are, as shown in FIGS. 2 and 3, a front end portion of the roof inner force 18 in the vehicle front-rear direction and a front pillar inner rear 20. The rear overlapping portion A is integrally overlapped with the rear end portion of the vehicle in the vehicle longitudinal direction. In the rear overlapping portion A, the front end portion of the roof inner reinforcement 18 in the vehicle front-rear direction and the rear end portion of the front pillar inner rear 20 in the vehicle front-rear direction are joined by, for example, resistance welding. Yes. Further, as shown in FIG. 4, the rear overlapping portion A includes a front end portion in the vehicle front-rear direction of the wall portion 18 a of the roof inner force 18 and a front-rear direction of the vehicle in the inner wall portion 20 a of the front pillar inner rear 20. And the rear end of the roof inner reinforcement 18 on the front flange in the vehicle front-rear direction and the rear flange 20b of the front pillar inner rear 20 on the rear side in the vehicle front-rear direction. It is the part where the end is overlapped.

In the front pillar 10, the front pillar inner rear 20 and the front pillar inner front 22, as shown in FIGS. 2 and 6, are the front pillar inner and front pillar inner ends of the front pillar inner rear 20. The front 22 has a front overlapping portion B that is integrally overlapped with the rear end portion in the vehicle front-rear direction in the vehicle front-rear direction. In the front overlapping portion B, the front end portion of the front pillar inner rear 20 in the vehicle front-rear direction and the rear end portion of the front pillar inner front 22 in the front-rear direction of the vehicle are joined by, for example, resistance welding. . Further, as shown in FIG. 7, the front overlapping portion B includes a front end portion in the vehicle front-rear direction on the inner wall portion 20 a of the front pillar inner rear 20 and a vehicle front-rear direction in the wall portion 22 a of the front pillar inner front 22. The rear end is overlapped, and the front end in the vehicle front-rear direction of the lower flange 20b of the front pillar inner rear 20 and the rear end in the vehicle front-rear direction of the lower flange 22b of the front pillar inner front 22 are overlapped. It is the part where the part overlaps.

As shown in FIGS. 1, 3, and 6, the inner flange 14 c of the front pillar outer 14 includes an inner flange 18 c of the roof inner reinforcement 18, an outer flange 20 c of the front pillar inner rear 20, and an inner side of the front pillar inner front 22. They are arranged so as to cover the flange 22c, that is, to overlap the inner flange 18c of the roof inner reinforcement 18, the outer flange 20c of the front pillar inner rear 20, and the inner flange 22c of the front pillar inner front 22. Further, the width in the vehicle width direction is overlapped with the inner flange 14c of the front pillar outer 14 so as to overlap the inner flange 18c of the roof inner reinforcement 18 and the outer flange 20c of the front pillar inner rear 20 in the rear overlapping portion A, respectively. The width W1 is formed so as to overlap the first wide portion 14d formed with a relatively large size W1, the outer flange 20c of the front pillar inner rear 20 and the inner flange 22c of the front pillar inner front 22 in the front overlapping portion B. Are connected between the first wide portion 14d and the second wide portion 14e, and the width dimension W1 of the first wide portion 14d and the second wide portion 14e. The narrow part 14f formed small is provided integrally.

In the longitudinal front pillar 10, the roof inner reinforcement is formed on the first wide portion 14 d of the inner flange 14 c of the front pillar outer 14 at the rear end portion of the front pillar 10 in the vehicle front-rear direction, that is, the rear overlapping portion A. As shown in FIG. 4, the front pillar outer 14, the front pillar inner rear 20, and the roof inner reinforcement 18 are joined by joining the inner flange 18 c of the front 18 and the outer flange 20 c of the front pillar inner rear 20 by, for example, resistance welding. A closed cross section surrounded by is formed. Further, in the longitudinal front pillar 10, the front pillar inner rear is provided at the front wide end portion 14 e of the inner flange 14 c of the front pillar outer 14 at the front end portion of the front pillar 10 in the vehicle front-rear direction, that is, the front overlapping portion B. As shown in FIG. 7, the front pillar outer 14, the front pillar inner rear 20, and the front pillar inner front 22 are joined by joining the outer flange 20c 20 and the inner flange 22c of the front pillar inner front 22 by, for example, resistance welding. A closed cross section surrounded by is formed. Further, in the longitudinal front pillar 10, for example, in a state where the narrow portion 14 f of the inner flange 14 c of the front pillar outer 14 and the outer flange 20 c of the front pillar inner 20 are overlapped at the intermediate portion of the front pillar 10. By joining by resistance welding or the like, a closed cross section surrounded by the front pillar outer 14 and the front pillar inner rear 20 is formed as shown in FIG. The lower flange 14b of the front pillar outer 14 and the lower flange 20b of the front pillar inner rear 20 are joined together by, for example, resistance welding. Thus, the longitudinal front pillar 10 forms a closed cross section in the entire longitudinal direction by the front pillar outer 14, the front pillar inner rear 20, the front pillar inner front 22, and the roof inner reinforcement 18. 3 to 7, the front pillar outer 14, the front pillar inner rear 20, the front pillar inner front 22, and the roof inner reinforcement 18 are formed on the front pillar 10 by resistance welding. A weld mark C is shown.

As shown in FIG. 6, a cowl top panel 12 is joined to the inner flange 22c of the front pillar inner front 22 at the front end of the front pillar 10 in the vehicle front-rear direction by, for example, resistance welding.

As shown in FIG. 3, an inner flange of a roof inner reinforcement 18 is joined to a rear end portion of the front pillar 10 in the vehicle front-rear direction, that is, the rear overlapping portion A so as to be joined to a longitudinal front header panel 24. A joint portion D is provided in which 18c and the first wide portion 14d of the inner flange 14c of the front pillar outer 14 are overlapped. Note that, in the joint portion D, the inner flange 18c of the roof inner reinforcement 18 and the first wide portion 14d of the inner flange 14c of the front pillar outer 14 are joined together by, for example, resistance welding. The longitudinal front header panel 24 is joined between the front pillar 10 and the other front pillar located on the opposite side in the vehicle width direction as the front pillar 10. The upper edge of the windshield (not shown) is arranged.

As shown in FIG. 3, the front header panel 24 includes a longitudinal plate-like front flange 24 a formed on the front side of the front header panel 24 in the vehicle front-rear direction, and a rear side of the front header panel 24 in the vehicle front-rear direction. A longitudinal plate-like rear flange 24b formed on the side is integrally provided, and outer end portions of the front flange 24a and the rear flange 24b in the vehicle width direction are joint portions D of the front pillar 10, respectively. For example, it is joined by resistance welding or the like.

As described above, according to the front pillar 10 of the present embodiment, the front pillar 10 includes the inner flange 14c of the front pillar outer 14 and the outer flange 20c of the front pillar inner rear 20 provided in the front pillar inner 16 overlapping each other. Since the closed cross-section is formed by joining in a state where the front pillar 10 is joined, for example, the width of the front pillar 10 is compared with the case where an inner flange directed inward in the vehicle width direction is used instead of the outer flange of the front pillar inner. Is suitably narrowed, and the visibility of the driver through the front pillar 10 is improved. Further, since the inner flange 18c of the roof inner force 18 is joined to the inner flange 14c of the front pillar outer 14 so as to be overlapped, for example, the inner flange 18c of the roof inner force 18 and the inner side of the front pillar outer 14 are joined. When a part of the vehicle body, for example, the front header panel 24 is joined to the portion overlapped with the flange 14c, the strength of the joint part where the front pillar 10 and a part of the vehicle body are joined is improved as compared with the conventional case. . As a result, the front pillar 10 improves the driver's field of view and improves the strength of the joint portion to be joined to the vehicle body as compared with the conventional case.

According to the front pillar 10 of the present embodiment, the front pillar inner 16 includes a front pillar inner front 22 disposed on the front side in the vehicle front-rear direction and a front pillar inner disposed on the rear side in the vehicle front-rear direction. The front pillar inner front 22 is formed with an inner flange 22c directed inward in the vehicle width direction, and the front pillar inner rear 20 is directed outward in the vehicle width direction. An outer flange 20c is formed, and the front pillar 10 is joined in a state where the inner flange 14c of the front pillar outer 14 and the outer flange 20c of the front pillar inner rear 20 are overlapped to form the closed cross section. The inner pillar 22c of the front pillar inner front 22 has a cowl top panel. 12 is joined. For this reason, since the cowl top panel 12 is joined to the inner flange 22c of the front pillar inner front 22 integrally provided in the front pillar inner 16, for example, a notch is provided in the front pillar inner 16 to integrally form the outer flange and the inner flange. Compared with the case where the flange is formed and the cowl top panel 12 is joined to the inner flange, the strength of the joint portion where the front pillar 10 and the cowl top panel 12 are joined is preferably improved.

Further, according to the front pillar 10 of the present embodiment, the roof inner reinforcement 18 and the front pillar inner rear 20 have the rear overlapping portion A in which they are overlapped in the vehicle front-rear direction, and the rear overlapping portion A The inner flange 14c of the roof inner reinforcement 18 and the outer flange 20c of the front pillar inner rear 20 are joined to the inner flange 14c of the front pillar outer 14, and the front pillar inner rear 20 and the front pillar inner front 22 are They have a front overlapping portion B that is overlapped in the vehicle longitudinal direction. In the front overlapping portion B, an outer flange 20c of the front pillar inner rear 20 and an inner flange of the front pillar inner front 22 are formed on the inner flange 14c of the front pillar outer 14. 22c and By being bonded, the closed section is formed. For this reason, in the rear overlapping portion A where the roof inner reinforcement 18 and the front pillar inner rear 20 are joined together, the front pillar outer 14, the roof inner reinforcement 18 and the front pillar inner rear 20 are joined while overlapping each other. At the same time, the front pillar outer 14, the front pillar inner rear 20, and the front pillar inner front 22 are joined while overlapping each other in the front overlapping portion B where the front pillar inner rear 20 and the front pillar inner front 22 are joined together. A decrease in the bending strength of the connecting portion of the front pillar 10 is suitably suppressed.

Further, according to the front pillar 10 of the present embodiment, the inner flange 18c of the roof inner reinforcement 18 joined to the front header panel 24 and the inner flange 14c of the front pillar outer 14 are overlapped with the rear overlapping portion A. The joined portion D is provided. Therefore, the front header panel 24 can be joined together with the two skeleton members constituting the front pillar 10, that is, the roof inner reinforcement 18 and the front pillar outer 14. Therefore, it is easy to ensure the joining strength and the load on the front header panel 24. Dispersibility and vehicle body rigidity can be effectively secured.

As mentioned above, although the Example of this invention was described in detail based on drawing, this invention can be implemented in the aspect which added the various change and improvement based on the knowledge of those skilled in the art.

10: Front pillar (vehicle front pillar)
12: Cowl top panel (Cowl)
14: Front pillar outer 14c: Inner flange 16: Front pillar inner 18: Roof inner reinforcement 18c: Inner flange 20: Front pillar inner rear 20c: Outer flange 22: Front pillar inner Front 22c: Inner flange 24: Front header panel A : Rear polymerization part B: Front polymerization part D: Joint part

Claims

A vehicle front that includes a front pillar outer that is an outer member of the vehicle body, a roof inner reinforcement and a front pillar inner that are inner members of the vehicle body, and forms a closed cross section in the entire longitudinal direction while the longitudinal direction of the vehicle is the longitudinal direction. A pillar,
The front pillar outer and the roof inner reinforcement are each formed with an inner flange directed inward in the vehicle width direction,
The front pillar inner is formed with an outer flange facing outward in the vehicle width direction,
The front pillar is joined with the inner flange of the front pillar outer and the outer flange of the front pillar inner being overlapped to form the closed section,
The vehicle front pillar according to claim 1, wherein an inner flange of the roof inner reinforcement is joined in a state of being overlapped with an inner flange of the front pillar outer.
The front pillar inner is integrally provided with a front pillar inner front disposed on the front side in the vehicle front-rear direction and a front pillar inner rear disposed on the rear side in the vehicle front-rear direction.
The front pillar inner front is formed with an inner flange directed inward in the vehicle width direction,
The front pillar inner rear is formed with an outer flange facing outward in the vehicle width direction,
The front pillar is joined in a state where the inner flange of the front pillar outer and the outer flange of the front pillar inner are overlapped to form the closed section,
2. The vehicle front pillar according to claim 1, wherein a cowl is joined to an inner flange of the front pillar inner front.
The roof inner reinforcement and the front pillar inner rear have a rear overlapping portion where they are overlapped in the vehicle front-rear direction, and the roof inner reinforcement is formed on the inner flange of the front pillar outer in the rear overlapping portion. And the inner flange of the front pillar inner rear is joined,
The front pillar inner rear and the front pillar inner front have a front overlapping portion where they are overlapped in the vehicle front-rear direction, and an outer flange of the front pillar inner rear is disposed on an inner flange of the front pillar outer in the front overlapping portion. The vehicle front pillar according to claim 2, wherein the closed cross section is formed by joining a flange and an inner flange of the front pillar inner front.
4. Any one of claims 1 to 3, wherein the rear overlapping portion is provided with a joint portion in which an inner flange of the roof inner reinforcement joined to a front header panel and an inner flange of the front pillar outer are overlapped. Or 1 front pillar for vehicles.