JP6076781B2 - Open car side body structure - Google Patents

Description

  INDUSTRIAL APPLICABILITY The present invention receives a collision load at the time of a vehicle side collision (hereinafter referred to as a side collision), a vehicle frontal collision (hereinafter referred to as a front collision) and a load ahead of the vehicle from a seat belt anchor, and is effective for a vehicle body structural member. The present invention relates to a side body structure of an open car that can be transmitted in an automatic manner.

  As a side body structure of an open car, there is a structure described in Patent Document 1, for example. In this conventional structure, a pillar rein hose extending rearward from the door opening side and a collar member spanned between the pillar inner and the outer are disposed inside the pillar member comprising the pillar inner and outer, and the collar member is interposed therebetween. The crossbar is connected to the bracket fixed to the pillar inner.

JP 2012-201299 A

  In the conventional structure, since the pillar rein hose extends rearward from the door opening side, the pillar rein hose is enlarged, and a dedicated collar member is provided to cope with a side collision load. There is a problem that the weight increases and the productivity deteriorates.

  Although it is conceivable to dispose a pipe member in the pillar member, there is a problem that it is difficult to effectively transmit the side impact load to the roll bar device as the reinforcing member becomes large.

  The present invention has been made in view of the above-described conventional situation. From the side impact load, the front impact load, or the seat belt anchor without increasing the size or thickness of the reinforcing member disposed in the pillar member. It is an object of the present invention to provide a side body structure of an open car that can receive a load in any direction such as a load of the vehicle and can be effectively transmitted to a vehicle body constituent member.

The present invention comprises a pillar inner and a pillar outer, and includes left and right pillar members extending in the vertical direction of the vehicle, and a quarter member connected to the pillar member and extending rearward of the vehicle, and a cross bar is bridged over the pillar inner. In the side body structure of the open car in which the reinforcing member is disposed in the crossbar mounting portion of the pillar member,
The reinforcing member has a box shape having front and rear walls facing in the vehicle front-rear direction and inner and outer walls facing in the vehicle width direction, and is bridged and fixed between the pillar inner and the pillar outer.
A cross bar of a roll bar device is attached to a portion of the pillar inner facing the inner wall of the reinforcing member,
The outer wall of the reinforcing member is extended rearward and connected to the quarter member.

According to the present invention, the side impact load is transmitted to the cross bar of the roll bar device via the two front and rear walls of the reinforcing member. Also, the front impact load input via the door belt line rein hose is distributed and transmitted from the front wall of the reinforcing member to the inner and outer walls, and further the distributed load to the outer wall is transmitted to the quarter member, The distributed load on the wall is transmitted to the crossbar of the roll bar device. Furthermore, the load ahead of the vehicle from the seat belt anchor is transmitted to the inner wall of the reinforcing member.

As described above, in the present invention, the box-shaped reinforcing member is disposed in the pillar member so as to be bridged between the pillar inner and the pillar outer, so that loads in all directions can be received without increasing the size and thickness of the reinforcing member. At the same time, it can be effectively transmitted to the vehicle body constituting member. As a result, occupant protection performance can be improved without increasing costs, vehicle weight, and productivity.

It is a side view which shows typically the frame | skeleton of the open car provided with the side part vehicle body structure by Example 1 of this invention. It is the perspective view which looked at the said side part vehicle body structure from diagonally forward of the vehicle interior. FIG. 5 is a cross-sectional rear view (cross-sectional view taken along the line III-III in FIG. 1 or FIG. 4) of the pillar member portion having the structure. FIG. 4 is a cross-sectional plan view (a cross-sectional view taken along the line IV-IV in FIG. 3) of an attachment portion of the cross bar having the structure to the center pillar. FIG. 5 is a cross-sectional plan view (cross-sectional view taken along the line V-V in FIG. 3) of the center pillar portion of the structure. It is a disassembled perspective view of the reinforcement member arrange | positioned in the center pillar of the said structure.

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

  1 to 6 are views for explaining a side body structure of an open car according to a first embodiment of the present invention. In this embodiment, front, rear, left, and right refer to the front of the vehicle from the vehicle interior. This means front, back, left, and right as viewed.

In the figure, 1 is an open car, and the skeleton of the open car 1 has the following configuration. A pair of left and right rocker members 2 and 2 extending in the vehicle front-rear direction are disposed on both the left and right sides in the vehicle width direction, and the front and rear ends of the left and right rocker members 2 and 2 are front cross members ( (Not shown) and a rear cross member 4 (see FIG. 3), and a front floor panel 3 is disposed on both the cross member and the rocker member 2. Further, a lower end portion of a front pillar 5 extending upward is coupled to a front end portion of the rocker member 2, and a lower end portion of a center pillar (pillar member) 6 extending upward is coupled to a rear portion. The front pillar 5, the center pillar 6 and the rocker member 2 form a door opening a, and a door 13 is disposed in the door opening a. Further, a rear end portion of the upper member 8 extending forward is coupled to the middle portion of the front pillar 5 in the height direction, and a front end of a quarter member (quarter member) 7 extending rearward is connected to the upper end portion of the center pillar 6. The parts are combined. A reinforcing member 9 that is inclined rearward and upward is coupled to the midway portion of the quarter member 7 in the front-rear direction and the rear end portion of the rocker member 2.

In addition, 11 is a front wheel, 12 is a rear wheel, and each said frame | skeleton structural member is covered with the exterior panel which consists of resin-made fender panel panels 10a, the side panel 10b, the rear panel 10c, etc., and the upper direction of a vehicle interior The ceiling panel 10d is arranged to be openable and closable.

  The rocker member 2 is formed in a cylindrical shape extending in the vehicle front-rear direction by connecting the rocker outer 2a and the rocker inner 2b with flange portions 2c and 2d so as to form a hollow shape.

The center pillar 6 is formed in a cylindrical shape extending in the vertical direction by welding the flange portions 6c and 6d so as to form a hollow shape between the pillar outer 6a and the pillar inner 6b. The lower end 6b ′ of the pillar inner 6b is inserted between the rocker outer 2a and the rocker inner 2b of the rocker member 2 and is welded to the rocker member 2.

A side portion 3a constituting a part of the floor panel 3 is fixed to the shelf portion 2b 'of the rocker inner 2b. The side portion 3a is inclined obliquely upward inward in the vehicle width direction, a base 3b is fixed to the upper surface of the side portion 3a, and a side member 7 'extending in the vehicle front-rear direction is coupled to the lower surface. A rear cross member 4 extending in the vehicle width direction is fixed inside the side member 7 '. The rear cross member 4 is coupled to the side member 7 'via the pedestal 3b and the side portion 3a.

  A sheet metal bulk member 14 is disposed in the lower portion of the center pillar 6. The bulk member 14 has a substantially U-shaped cross section including a bulk body 14a, an outer flange portion 14b, and an inner flange portion 14c. The outer flange portion 14b is fixed by welding to the pillar outer 6a, and the bulk body 14a is disposed horizontally in the vehicle width direction.

A brace member 15 made of sheet metal is disposed on the inner side of the pillar inner 6b. The brace member 15 includes a brace body 15a having a substantially U-shaped cross section that opens downward, and an outer end portion thereof. And a flange portion 15b bent upward. The flange portion 15b is disposed opposite to the inner flange portion 14c of the bulk member 14 with the pillar inner 6b and the reinforcing plate 6e interposed therebetween, and is fastened and fixed by bolts 20f in a four-layer manner. The brace body 15a is disposed at the same height as the bulk body 14a and horizontally in the vehicle width direction. Further, the inner end 15c in the vehicle width direction of the brace body 15a is fixed to the upper surface of the pedestal 3b by welding, thereby forming a joint b between the brace body 15a and the pedestal 3b.

A roll bar device 26 is disposed between the left and right center pillars 6 and 6. The roll bar device 26 includes an upper cross bar 16 and a lower cross bar 17.

The upper crossbar 16 is made of a round pipe and extends in the vehicle width direction. The upper crossbar 16 is also made of a round pipe and is fixed to the left and right ends of the upper crossbar body 16a and extends downward. Have A pair of left and right roll bars 16c formed by bending a round pipe into an inverted U shape is disposed and fixed on the upper crossbar body 16a. The roll bar 16c functions to prevent an impact from the road surface from acting on the head of the occupant by supporting the vehicle body when the vehicle falls.

A seat belt anchor 27 is fixed to the upper end of the leg portion 16a. The webbing led out from a retractor (not shown) is passed through the seat belt anchor 27, and the tongue at the tip of the webbing is detachably locked to a buckle disposed in the vicinity of the seat cushion. In the event of a vehicle collision, the inertial force of the occupant acts as a large forward load on the seat belt anchor 27 and thus on the leg 16a.

A flange 16d is fixed to a lower end portion 16b 'of the leg portion 16b, and the flange 16d is fastened and fixed by a bolt 20e in a three-ply manner to a connecting portion b between the brace body 15a and the base 3b of the brace member 15. Yes. Of course, the flange 16d may be fixed to the connecting portion b by welding.

The lower crossbar 17 has a lower crossbar main body 18 made of a square pipe extending in the vehicle width direction, and mounting brackets 19, 19 fixed to the left and right ends of the lower crossbar main body 18. The bracket 19 is the center pillar. 6 is fixed. Here, the lower crossbar main body 18 is disposed below and slightly forward of the upper crossbar main body 16a of the upper crossbar 16.

The mounting bracket 19 has a front and rear divided structure composed of a front plate 19a and a rear plate 19b, and is formed with a leg fixing portion 19c that fixes and supports the middle portion of the leg portion 16b, and is bent forward. And a flange portion 19d fixed to the middle portion of the center pillar 6. The base portions 19a 'and 19b' of the front and rear plates 19a and 19b are clamped and fixed by bolts 20a with the outer ends of the lower crossbar body 18 sandwiched from the front and rear. Further, the leg portions 16b outside portions of the front and rear plates 19a and 19b are fastened and fixed by bolts 20b.

The flange portion 19d is fastened and fixed to the inner wall 22a of the reinforcing member 21 disposed in the center pillar 6 by bolts 20d and weld nuts 20d 'with the pillar inner 6b of the center pillar 6 interposed therebetween.

The reinforcing member 21 has a box shape in plan view including a first U-shaped plate 22 disposed on the front side in the vehicle longitudinal direction and a second U-shaped plate 23 disposed on the rear side. The second U-shaped plate 23 is disposed so as to overlap between the inner and outer walls 22a and 22b of the first U-shaped plate 22.

The first U-shaped plate 22 includes a front wall 22c facing forward of the vehicle, and the inner wall 22a and outer wall 22b facing inward and outward in the vehicle width direction. The second U-shaped plate 23 has a rear wall 23c facing the rear of the vehicle, and an inner wall 23a and an outer wall 23b facing the vehicle width direction inside and outside. A rear end portion of the inner side wall 22a of the first U-shaped plate 22 and a middle portion of the outer side wall 22b and an inner side wall 23a and an outer side wall 23b of the second U-shaped plate 23 are coupled to each other. Is configured. The reinforcing member 21 is fixed over the pillar inner 6b and the pillar outer 6a.

A lower cross bar 17 of a roll bar device 26 is attached to a portion of the pillar inner 6b facing the inner wall 22a of the first U-shaped plate 22, and a rear end of the outer wall 22b of the first U-shaped plate 22 The portion 22b 'extends rearward and is fixed to the front end portion 7a of the quarter panel 7 by welding.

  Furthermore, a locking plate 24 is fixed to the front surface of the front wall portion 22 c of the first U-shaped plate 22. The locking plate 24 is L-shaped, and a convex portion 24a is formed to protrude forward at a corner portion thereof. The locking plate 24 is disposed so as to face the rear end portion 25a of the belt line reinhose 25 disposed on the belt line of the door 13, and more specifically, the convex portion 24a is disposed on the rear end portion. It is located slightly outside in the vehicle width direction from 25a.

  Here, when the door 13 moves rearward due to a collision load at the time of a front collision, the locking plate 24 opens to the outside in the vehicle width direction. It functions to block by locking 25a.

According to the present embodiment, the collision load F2 acting in the vicinity of the lower crossbar 17 at the time of a side collision is transmitted to the lower crossbar 17 and the upper crossbar 16 as shown in FIG. 3 (arrows B1, B1 ′). And a part thereof is transmitted to the floor panel 3 through the leg portion 16b (see arrow B2).

The collision load F2 at the time of the side collision, the collision load F3 at the time of the front collision, and the load transmission path from the seat belt anchor 27 will be described in more detail with reference to FIG.

The side impact load F2 acting on the relatively upper portion of the center pillar 6 is transmitted to the lower cross bar 17 of the roll bar device 26 via the two surfaces of the front wall 22c and the rear wall 23c of the reinforcing member 21 ( (See arrows f1 and f1 ′ in FIG. 4).

Further, the front collision load F3 input through the belt line rein hose 25 of the door 13 is distributed and transmitted from the front wall 22c of the reinforcing member 21 to the inner wall 22a and the outer wall 22b (see arrow f2 in FIG. 4). Further, the distributed load on the outer wall 22b is transmitted to the quarter member 7 (see arrow f2 'in the figure), and the distributed load on the inner wall 22a is transmitted to the lower cross bar 17 of the roll bar device 26 (arrow f2'). 'reference). Furthermore, the load ahead of the vehicle from the seat belt anchor 27 is transmitted to the inner wall 22a of the reinforcing member 21 (see arrow f4).

As described above, in this embodiment, the box-shaped reinforcing member 21 is arranged in the center pillar 6 so as to span the pillar inner 6b and the pillar outer 6a, so that the reinforcing member 21 is not increased in size and thickness. In addition to receiving loads in all directions, it can be effectively transmitted to the vehicle body components, and passenger protection can be achieved, so that costs, vehicle weight, and productivity are not increased.

  Further, in this embodiment, the brace member 15 coupled to the pedestal 3b of the floor panel 3 and the bulk member 14 disposed in the center pillar 6 are arranged such that the bulk main body 14a and the brace main body 15a are substantially in the vehicle width direction. Since they are arranged so as to be horizontal, that is, to form a straight line, the collision load F1 acting below the lower crossbar 17 at the time of a vehicle side collision is substantially linear from the bulk member 14 to the floor panel 3 via the brace member 15. (See arrow A1 in FIG. 3).

Further, since the lower end portion 16b 'of the leg portion 16b fixed to the lower cross bar 17 is fixed to the joint portion b between the brace member 15 and the floor panel 3, the linear member is transmitted from the bulk member 14 to the brace member 15. A part of the side collision load F1 is transmitted from the leg portion 16b to the lower crossbar 17 and further to the upper crossbar 16 (see arrow A2).

In this way, the side impact loads F1 and F2 can be distributed and transmitted to the floor panel 3, the lower cross bar 17, and the upper cross bar 16, and as a result, the amount of deformation approaching into the vehicle inner side of the vehicle body side portion can be reduced. It can be effectively suppressed.

Here, in the present embodiment, the bulk member 14 and the brace member 15 are disposed substantially horizontally in the vehicle width direction, and the lower end portion 16b 'of the leg portion 16b fixed to the lower cross bar 17 is connected to the brace member 14 and the floor panel. 3 is fixed in the vicinity of the connecting portion b with the third member, so that the bulk member 14 and the brace member 15 need not be enlarged and thickened, and an increase in cost and vehicle weight can be avoided. , Improve productivity.

1 Open car 6 Center pillar (pillar member)
6a Pillar outer 6b Pillar inner 7 Quarter member (quarter member)
17 Lower cross bar 21 Reinforcing member 22a Inner side wall 22b Outer side wall 22c Front wall 23c Rear wall 26 Roll bar device

Claims (1)

A pillar inner member and a pillar outer member, the left and right pillar members extending in the vertical direction of the vehicle, and a quarter member connected to the pillar member and extending rearward of the vehicle. In the side body structure of the open car in which the reinforcing member is disposed in the crossbar mounting portion of the pillar member,
The reinforcing member has a box shape having front and rear walls facing in the vehicle front-rear direction and inner and outer walls facing in the vehicle width direction, and is bridged and fixed between the pillar inner and the pillar outer.
A cross bar of a roll bar device is attached to a portion of the pillar inner facing the inner wall of the reinforcing member,
The side body structure of an open car, wherein an outer wall of the reinforcing member extends rearward and is connected to the quarter member.

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