JP2013248938A - Roof-side structure of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof-side structure of an automobile capable of securing a bonding strength when adding a reinforcement without leading to a cost increase and capable of improving reliability for welding quality.SOLUTION: Opening angles θ of respective upper flanges 10b-13b and respective lower flanges 10c-13c of a roof of a pillar outer 10, respective pillar inners 11, 12 and a roof inner 13' are set approximately as 90°, a perpendicular flat surface 13d substantially perpendicular to the upper flange 13b of the roof inner 13' is formed in the neighborhood of the upper flange 13b and, meanwhile, a parallel flat surface 13e substantially parallel with the lower flange 13c is formed in the neighborhood of the lower flange 13c. A reinforcement member 15 having a longitudinal length substantially equal to the roof inner 13' is arranged within a roof 4c, reinforcement member upper and lower flanges 15b, 15c of the reinforcement member 15 are respectively overlapped on the upper flange 13b and the lower flange 13c and welded, and reinforcement member perpendicular flat surface 15h and reinforcement member parallel flat surface 15i of the reinforcement member 15 are welded to a perpendicular flat surface 13d and a parallel flat surface 13e of the roof inner 13'.

Description

  The present invention relates to a structure of a roof side portion of an automobile having a front pillar portion extending in the vertical direction, a roof portion extending rearward after the front pillar portion, and a rear pillar portion extending downward following the roof portion.

  In the case of a vehicle with a heavy vehicle body weight compared to a standard vehicle in which a roof side part is formed by an outer panel and an inner panel in an automobile, the standard vehicle specification is used from the viewpoint of increasing the resistance to input in the event of a vehicle collision. In some cases, a rein hose is added to the roof side, or the thickness of the roof inner is increased. For example, Patent Document 1 discloses a structure in which a closed cross section is formed by spot welding the flanges with a rein hose interposed between an outer panel and an inner panel forming a roof side portion.

JP 2004-306884 A

  By the way, when a rein hose is added to the roof side part set to the standard vehicle specification without the rein hose, one flange of the inner panel is offset by the plate thickness of the rein hose, but the other flange has a wide flange angle. Therefore, it becomes smaller than the offset amount. Therefore, the other flange is welded and joined to the rein hose in an interference manner, and there is a concern that the reliability with respect to the joining strength and the like is lowered.

  For example, referring to FIG. 4 of Patent Document 1, when the opening angle between the upper flange and the lower flange is as large as 140 degrees, when the upper flange is overlapped with the rein hose, the lower flange is equal to the thickness of the rein hose. In this case, spot welding is performed in a state where the rein hose is separated from the flange of the reinhose, and in some cases a gap is generated, which may result in poor welding and failing to obtain the necessary joint strength.

  Moreover, since only the both ends of the rein hose are welded and joined to the flange portion of the panel, sufficient joining strength of the rein hose cannot be obtained.

In addition, when changing the plate | board thickness of an inner panel for every vehicle model, although the concern of a welding defect does not arise, the type | mold for every vehicle model is needed and the problem that cost rises arises.

  The present invention has been made in view of the above-described conventional situation, and can secure a bonding strength when adding a rein hose without incurring an increase in cost, and can improve reliability with respect to welding quality. The challenge is to provide a structure.

  The present invention includes a front pillar portion extending in the vehicle vertical direction, a roof portion extending rearward following the upper end portion of the front pillar portion, and a pillar outer having a rear pillar portion extending downward following the rear end portion of the roof portion, A front pillar inner, a rear pillar inner, and a pillar inner having a roof inner extending along each of the front pillar portion, the rear pillar portion, and the roof portion, and an upper flange and a lower flange of the pillar outer, and an upper flange and a lower flange of the pillar inner. In the roof side part structure of an automobile in which a cylindrical closed cross section is formed by overlapping and welding and joining, at least an opening angle of the upper flange and the lower flange of the roof part and the roof inner is approximately 90 degrees, A vertical plane that is substantially perpendicular to the upper flange in the vicinity of the upper flange, Parallel planes substantially parallel to the lower flange are formed in the vicinity, reinforcing members having substantially the same longitudinal length as the roof inner are disposed in the roof portion, and the upper flange and the lower flange are disposed on the reinforcing member. The reinforcing member upper flange, the reinforcing member lower flange corresponding to the flange, the vertical plane of the roof inner, the reinforcing member vertical plane corresponding to the parallel plane, and the reinforcing member parallel plane are formed, and the reinforcing member upper flange and the reinforcing member lower flange are respectively formed. The upper flange and the lower flange are overlapped and welded, and the reinforcing member vertical plane and the reinforcing member parallel plane are welded to the vertical plane and parallel plane of the roof inner, respectively.

  According to the present invention, the opening angle between the roof portion of the pillar outer and the upper flange and the lower flange of the pillar inner is set to approximately 90 degrees, the reinforcing member is disposed in the roof portion, and the reinforcing member formed on the reinforcing member The lower flange was welded together with the upper flange and the lower flange overlapped. Therefore, for example, when a reinforcing member is added to the roof side part set to the standard vehicle specification, the roof inner is brought into contact with the reinforcing member upper flange of the reinforcing member and the thickness of the reinforcing member lower flange is set. By moving the upper and lower flanges, the upper and lower flanges of the roof inner can be brought into contact with the upper and lower flanges of the reinforcing member without any gaps, and the necessary joint strength can be secured by welding in this state. Reliability for welding quality can be increased.

  In the present invention, the above-mentioned effect can be obtained with a structure in which the opening angle between the flanges is set to approximately 90 degrees, and an increase in cost can be suppressed as compared with the case where the thickness of the inner panel is changed for each vehicle type.

  In addition, since the vertical plane near the upper flange of the roof inner and the parallel plane near the lower flange are welded to the reinforcing member vertical plane and the reinforcing member parallel plane of the reinforcing member, the reinforcing member A closed cross-section portion of the bag structure formed by the roof inner can be separately formed, and the proof strength against an input at the time of a vehicle collision can be further increased without incurring a cost increase compared to the case of only flange joining.

It is a side view of the panel van type truck by Example 1 of the present invention. It is a side view of the side panel of the said track | truck. It is a side view of the roof side part of the said side panel. It is sectional drawing (IV-IV sectional view taken on the line of FIG. 3) of the said roof side part. It is sectional drawing (VV sectional view taken on the line of FIG. 3) of the said roof side part. It is a perspective view of the roof rein hose arrange | positioned at the said roof side part.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 6 are views for explaining a roof side portion structure of an automobile according to Embodiment 1 of the present invention.

  In the figure, reference numeral 1 denotes a panel van type truck in which the structure of this embodiment is adopted. The truck 1 includes a cabin 2 that forms a passenger compartment, and a box-type panel 3 that is mounted on a cargo bed and forms, for example, a cold storage / freezing compartment.

  The cabin 2 is disposed between the left and right side panels 4 in which the door openings 4a are formed, the door 5 disposed in the door openings 4a, and the upper ends of the left and right side panels 4. A roof panel 6, a windshield 7 disposed between front end portions, and a back panel (not shown) disposed between rear end portions are provided.

  The left and right side panels 4 include a front pillar portion (front pillar portion) 4b extending in the vehicle vertical direction, a roof portion 4c extending rearward of the vehicle following the upper end of the front pillar portion 4b, and the roof portion 4c. It has a roof side portion 8 formed with a rear pillar portion (rear pillar portion) 4d extending downward following the rear end.

  The left and right side panels 4 have a rocker portion 4f formed with a wheel arch 4e that connects a lower end portion of the front pillar portion 4b and a lower end portion of the rear pillar portion 4d.

  The roof side portion 8 includes a pillar outer 10 in which the front pillar portion 4b, the roof portion 4c and the rear pillar portion 4d are integrally formed, a front pillar inner (front pillar inner) 11 extending along the front pillar portion 4b, and the rear pillar. A rear pillar inner (rear pillar inner) 12 extending along the portion 4d and a pillar inner 13 having a roof inner 13 'extending along the roof portion 4c and connected to the front pillar inner 11 and the rear pillar inner 12 are provided.

  On the lower part of the front pillar inner 11, a hinge member (not shown) that supports the door 5 so as to be openable and closable is attached, and lower hinge attachment seats 11a and 11b are formed.

  The pillar outer 10 includes an outer wall portion 10a that is curved so as to project outward, an outer upper flange 10b that is bent and formed in a stepped shape so as to protrude toward the vehicle inner side at the upper edge of the outer wall portion 10a, and the outer wall. It has an outer lower flange 10c that is bent so as to protrude downward at the lower edge of the portion 10a and forms the door opening 4a (see FIG. 5).

  A roof flange 6a bent at the outer edge of the roof panel 6 is coupled to the outer upper flange 10b of the pillar outer 10, and the outer lower flange 10c is connected to the door 5 over the entire circumference thereof. A weather strip (not shown) for sealing the gap is mounted.

  The front pillar inner 11, rear pillar inner 12, and roof inner 13 'all have substantially the same cross-sectional shape, and are substantially flat plate-shaped inner wall portions 11a, 12a, and 13a, and upper edges of the inner wall portions 12a to 13a. The inner upper flanges 11b, 12b, 13b are formed to be bent to face the outer upper flange 10b, and the inner lower flanges are formed to be bent to face the outer lower flange 10c at the lower edges of the inner wall portions 11a to 13a. 11c, 12c, and 13c (see FIG. 3).

  The roof side portion 8 has an outer upper flange 10b and an outer lower flange 10c of the pillar outer 10, respectively, an inner upper flange 11b, 12b, 13b and an inner lower flange of a front pillar inner 11, a rear pillar inner 12, and a roof inner 13 '. 11c, 12c, and 13c are overlapped and joined by spot welding to form a cylindrical closed section A.

  A step corresponding to the plate thickness of the roof inner 13 ′ is offset to the outside of the vehicle at the overlapping portions 11 e and 12 e of the rear end of the front pillar inner 11 and the front end of the rear pillar inner 12 with the roof inner 13 ′. It is formed (see FIG. 4). As a result, in the case of a vehicle type that does not include the roof rein hose 15 described later, the inner surfaces of the front and rear pillar inners 11 and 12 are flush with each other, and in the case of a vehicle type that includes the rein hose 15, steps due to the rein hose intervention are suppressed.

  The outer upper flange 10b and the outer lower flange 10c of the pillar outer 10 are set so that the opening angle θ between the both 10b and 10c is approximately 90 degrees.

  Further, the opening angle θ of each of the inner upper flanges 11b to 13b and the inner lower flanges 11c to 13c of the front pillar inner 11, rear pillar inner 12, and roof inner 13 ′ is set to be approximately 90 degrees.

  Here, the opening angle θ of about 90 degrees means the strength of the welded joint between the flanges of the pillar outer and the pillar inner when the roof rein hose 15 described later is provided, and the weld joint strength when the roof rein hose is not provided. It is set from the viewpoint that it is equivalent. Specifically, a range of 90 ± 5 degrees is preferable. Incidentally, there is a concern that as the opening angle is larger than 95 degrees and smaller than 85 degrees, the welding joint strength of the vehicle type that does not have the weld joint strength of the vehicle type that includes the roof rein hose is reduced.

  A vertical plane 13d perpendicular to the upper flange 13b is formed in the vicinity of the inner upper flange 13b at the front and rear ends of the inner wall 13a of the roof inner 13 '.

  A parallel plane 13e parallel to the lower flange 13c and parallel to the vertical plane 13d is formed in the vicinity of the inner lower flange 13c at the front and rear ends of the inner wall 13a of the roof inner 13 '.

  A roof rein hose (reinforcing member) 15 is disposed in the roof side portion 8.

  The roof rein hose 15 has substantially the same front and rear length as the roof inner 13 ', and defines the closed cross section A into two closed cross sections A' and A "so as to substantially follow the pillar outer 10. The rein hose body 15a formed as described above, the rein hose upper flange (reinforcement member upper flange) 15b bent at the upper edge of the rein hose body 15a so as to face the outer upper flange 10b, and the outer lower flange at the lower edge And a rein hose lower flange (reinforcing member lower flange) 15c that is bent so as to face 10c.

  At the both edges of the rein hose body 15a, front and rear inclined throttle portions 15d and 15e are formed so as to be bent so as to approach the roof inner 13 ', and the front and rear inclined throttle portions 15d, 15e has a front flange portion (front end portion) 15f and a rear flange portion (rear end portion) 15g bent substantially along the sectional shape of the roof inner 13 '.

  The front flange portion 15f and the rear flange portion 15g of the roof rein hose 15 have a rein hose vertical plane (reinforcing member vertical plane) 15h that abuts on the vertical plane 13d and the parallel plane 13e of the roof inner 13 ', respectively, Member parallel plane) 15i is formed.

  The upper end of the roof rein hose 15 and the front end portions of the lower flanges 15b and 15c are overlapped with the pillar outer 10 and joined by spot welding while being arranged between the front pillar inner 11 and the roof inner 13 '.

  Further, the rear end of the lower flange 15b, 15c on the rein hose of the lure-in hose 15 is overlapped with the pillar outer 10 and joined by spot welding while being arranged between the rear pillar inner 12 and the roof inner 13 '.

  The rein hose vertical plane 15h and the rein hose parallel plane 15i on the front side of the roof rein hose 15 are superposed on the front vertical plane 13d and the parallel plane 13e of the roof inner 13 'together with the overlapping portion 11e of the front pillar inner 11. Joined by spot welding.

  Spot welding is performed together with the overlapping portion 12e of the rear pillar inner 12 with the vertical plane 15h and parallel plane 15i on the rear side of the roof inner hose 15 being overlapped with the vertical plane 13d and parallel plane 13e on the rear side of the roof inner 13 '. It is joined by. Thus, a closed cross section A ″ having a bag structure is formed in the closed cross section A of the roof side portion 8 by the roof rein hose 15 and the roof inner 13 ′.

  In this embodiment, the opening angle θ between the upper flanges 10b to 13b and the lower flanges 10c to 13c of the pillar outer 10, the front pillar inner 11, the rear pillar inner 12, and the roof inner 13 'is set to be approximately 90 degrees. A vertical plane 13d that is substantially perpendicular to the upper flange 13b is formed in the vicinity of the inner upper flange 13b of the inner wall 13a of 13 ', and is substantially parallel to the lower flange 13c in the vicinity of the inner lower flange 13c. A parallel flat surface 13e is formed and formed on a roof rein hose 15 having substantially the same longitudinal length as the roof inner 13 ', and lower flanges 15b and 15c are respectively connected to the pillar inners 11 and 12 and the upper flanges of the roof inner 13'. 11b to 13b and lower flanges 11c to 13c The front flange portion 15f and the rear flange portion 15g of the roof inner hose 15 are formed along the cross-sectional shape of the roof inner 13 ', and each pillar inner is formed on the vertical plane 13d and the parallel plane 13e of the roof inner 13'. 11 and 12 were welded together with the overlapping portions 11e and 12e.

  Since it comprised in this way, when adding the roofline hose 15 of thickness t to the roof side part 8 of the track 1 which mounted the box-type panel 3 in the roof side part set to the track specification only of a loading platform, for example. As shown in FIG. 5, the plate of the rein hose is moved by moving the upper and lower flanges 15b and 15c of the roof inner hose 15 on the inner and lower flanges 13b and 13c of the roof inner 13 'in the t1 and t2 directions. The flanges can be brought into contact with each other with no gap in a state where the thickness is offset. As a result, the upper and lower flanges 13b and 13c of the roof inner 13 'can be welded and joined to the upper and lower flanges 15b and 15c of the roof reinhose 15 without any gaps, and the necessary joining strength is ensured. It is possible to increase the reliability of the welding quality.

  In this embodiment, at the time of a vehicle frontal collision, the inertial input F2 from the box-type panel 3 together with the collision input F1 acts on the roof side portion 8 (see FIG. 1). Yield strength against F1 and F2 can be increased.

  Further, in the present embodiment, the above-described effects can be achieved by the structure only by setting the opening angle θ between the upper and lower flanges to 90 degrees. Therefore, in the case of a standard vehicle without the roof rein hose 15 and the roof rein hose 15 In the vehicle type to which is added, the types of the pillar inners 11 and 12 and the roof inner 13 'can be made common, and an increase in cost can be suppressed as compared with the case where the thickness of the inner panel is changed for each vehicle type.

  Further, in this embodiment, the vertical planes 15h and parallel planes 15i formed on the front and rear flange portions 15f and 15g of the roof rein hose 15 are connected to the pillars 11 on the front and rear vertical planes 13d and 13e of the roof inner 13 '. , 12 are welded together with the overlapping portions 11e, 12e, so that a closed cross section A ″ of a bag structure by the roof rein hose 15 and the roof inner 13 ′ can be separately formed in the closed cross section A of the roof side portion 8. As compared with the case where only the upper and lower flange joints are used, it is possible to further increase the proof strength against the input at the time of the vehicle collision without causing an increase in cost.

Here, in the case of a vehicle type in which no roof rein hose is added, the roof inner 13 ′ is overlapped on the pillar outer 10 as it is and welded.

  In the above embodiment, the case where the present invention is applied to a panel van type truck has been described. However, the roof side portion structure of the present invention can of course be applied to a passenger car and the like. An effect is obtained.

  In the above embodiment, the roof inner 13 'corresponds to the roof portion 4c. However, in the present invention, as shown in FIG. 2, the roof inner is extended to the vicinity of the belt line a above the upper hinge mounting seat 11a. Also good. In this case, since the vertical length of the front pillar inner can be shortened, and the roof rein hose has the same longitudinal length as the roof inner, the proof strength at the time of a vehicle collision can be further increased.

  Further, in the above-described embodiment, the roof side portion including the front pillar and the rear pillar has been described as an example. However, the present invention is a four-door type vehicle including a center pillar (front pillar) and a quarter pillar (rear pillar). It can also be applied to the roof side part.

1 truck (car)
4b Front pillar 4c Roof 4d Rear pillar 8 Roof side 10 Pillar outer 10b Outer upper flange 10c Outer lower flange 11 Front pillar inner (front pillar inner)
11b Inner upper flange 11c Inner lower flange 12 Rear pillar inner (rear pillar inner)
12b Inner upper flange 12c Inner lower flange 13 Pillar inner 13 'Roof inner 13b Inner upper flange 13c Inner lower flange 13d Vertical plane 13e Parallel plane 15 Roof rein hose (reinforcing member)
15b Upper flange (Reinforcement member upper flange)
15c Lower flange (Reinforcement member lower flange)
15f Front flange (front end)
15g Rear flange (rear end)
15h Rein hose vertical plane (reinforcement member vertical plane)
15i Reinhose parallel plane (reinforcement member parallel plane)
A Closed section θ Open angle

Claims (1)

A pillar outer having a front pillar portion extending in the vehicle vertical direction, a roof portion extending rearward after the upper end portion of the front pillar portion, and a rear pillar portion extending downwardly following the rear end portion of the roof portion;
A front pillar inner portion extending along each of the front pillar portion, the rear pillar portion, and the roof portion, a rear pillar inner, and a pillar inner having a roof inner,
In the structure of the roof side part of an automobile in which a cylindrical closed cross section is formed by overlapping and welding the upper flange and lower flange of the pillar outer and the upper flange and lower flange of the pillar inner,
At least the opening angle between the upper flange and the lower flange of the roof portion and the roof inner is approximately 90 degrees,
Forming a vertical plane that is substantially perpendicular to the upper flange in the vicinity of the upper flange of the roof inner, and a parallel plane that is substantially parallel to the lower flange in the vicinity of the lower flange;
A reinforcing member having substantially the same front and back length as the roof inner is disposed in the roof portion,
The reinforcing member is formed with a reinforcing member upper flange corresponding to the upper flange, a lower flange, a reinforcing member lower flange and a vertical plane of the roof inner, a reinforcing member vertical plane corresponding to the parallel plane, and a reinforcing member parallel plane,
The reinforcing member upper flange and the reinforcing member lower flange are welded and joined to the upper flange and the lower flange, respectively, and the reinforcing member vertical plane and the reinforcing member parallel plane are welded to the vertical and parallel planes of the roof inner, respectively. An automobile roof side part structure characterized by

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