JP4459675B2 - Automobile pillar reinforcement structure - Google Patents

Description

  The present invention relates to a pillar reinforcement structure for an automobile in which an input at the time of a vehicle collision is transmitted from an apron member to a door belt line rein hose via a pillar member.

  In an automobile, a structure is adopted in which an influence upon a passenger compartment is avoided by transmitting an input at the time of a vehicle collision from an apron member to a door belt line rein hose via a front pillar. In addition, from the viewpoint of preventing the front pillar from collapsing in the event of a vehicle collision, a bulkhead that substantially closes the cross section of the pillar is disposed in the front pillar, and the bulkhead is reinforced by joining the inner wall of the front pillar. There is.

By the way, since in-vehicle parts such as an antenna and a drain hose are routed in the front pillar, a structure is proposed in which an opening for inserting the in-vehicle parts is formed in the central portion of the bulkhead. (For example, refer to Patent Document 1).
JP-A-8-20246

  However, when a structure in which an opening is formed in the central portion of the conventional bulkhead described above, the input at the time of collision cannot be efficiently transmitted to the door belt line reinhose, and the desired collision performance cannot be obtained. There's a problem. In other words, depending on the front body structure, the input load at the time of collision may be concentrated and transmitted from the outside of the pillar member to the inside of the vehicle, so that the pillar member is deformed by the central opening of the bulkhead and the cross section is collapsed. It becomes easy.

  The present invention has been made in view of the above-described conventional situation, and provides an automobile pillar reinforcement structure that can prevent the influence on the collision performance when an in-vehicle component such as an antenna or a drain hose is routed in a pillar member. The purpose is that.

According to the present invention, a rear end portion of an apron member extending in front of the vehicle is coupled to a pillar member having a closed cross-section that extends in the vertical direction of the vehicle, and the apron member is positioned at substantially the same height as the apron member on the rear side of the pillar member. In the pillar reinforcement structure of an automobile in which a door belt line rein hose is provided on the front side, the front side of the apron member is disposed so as to enter the inside of the vehicle , and the apron member and the door belt line rein hose are disposed in the pillar member. And a bulkhead that is substantially closed inside the pillar member is disposed, and an in-vehicle component insertion portion is formed at the front front corner portion of the bulkhead.

  According to the pillar reinforcing structure according to the present invention, since the in-vehicle component insertion portion is formed at the corner portion on the vehicle front outside of the bulkhead arranged so as to substantially close the inside of the pillar member, the pillar is interposed through the insertion portion. In-vehicle components such as an antenna can be routed in the member.

  In addition, since the in-vehicle component insertion part is formed outside the bulkhead, which has a relatively small influence on the input load at the time of collision, the overall bulkhead rigidity against the input load does not decrease so much, and the cross-section collapses due to the deformation of the pillar member. And the input at the time of collision can be efficiently transmitted to the door belt line rein hose.

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

  FIGS. 1 to 7 are views for explaining a pillar reinforcing structure for an automobile according to an embodiment of the present invention. FIG. 1 is a sectional plan view of a bulkhead portion of a front pillar, and FIG. 3 is a perspective view of the bulkhead, FIGS. 4 and 5 are side views and plan views of the front pillar, FIG. 6 is a perspective view of the vehicle body of the automobile, and FIG. It is a figure which shows an input path | route.

  In the figure, reference numeral 1 denotes a vehicle body in which the pillar reinforcing structure of the present embodiment is adopted, which is respectively provided at the upper and lower ends of the left and right front pillars 2 and 2 extending in the vehicle vertical direction. The roof rails 3 and 3 and the rocker panels 4 and 4 extending in the direction are coupled, and the center pillar 5 is coupled between the roof rail 3 and the rocker panel 4 behind the front pillar 2 to form a front door opening 6. A front door 15 is disposed in the front door opening 6.

  A roof panel 8 is disposed between the left and right roof rails 3, and a front cowl 7 extending in the vehicle width direction is disposed at the center of the left and right front pillars 2 and 2 in the vertical direction. Yes.

  The left and right front pillars 2 are connected to rear end portions 10a of apron members 10 extending forward of the vehicle, and upper side members 11 and 11 are attached to front end portions of the left and right apron members 10 and 10, respectively. The radiator support 12 is coupled via the via. Furthermore, the upper end portion of the suspension tower 13 is coupled to each apron member 10, and the lower end portion is coupled to the side member 14.

  When viewed from the vehicle plane, the left and right apron members 10 and 10 are disposed slightly inclined so as to be located inward from the front pillar 2 (see FIGS. 6 and 7A). ).

  A door belt line rein hose 17 is disposed in the front door 15 along the belt line L. When viewed in the vehicle front-rear direction, the door belt line rein hose 17 has the front pillar 2 and the center. It arrange | positions so that the pillar 5 may overlap.

  When viewed from the side of the vehicle, the door belt line rein hose 17 and the apron member 10 are arranged in series so as to form a substantially straight line at substantially the same height and in the vehicle front-rear direction. Thereby, the input at the time of the vehicle collision is transmitted from the apron member 10 to the door belt line rein hose 17 via the front pillar 2 and from the belt line rein hose 17 to the rear part of the vehicle body.

  The front pillar 2 has a cross-sectional hat-shaped pillar rein hose 22 formed so as to be substantially along the pillar outer 20 between a cross-sectional hat-shaped pillar outer 20 and a pillar inner 21 that closes the opening inside the vehicle. In addition, the front and rear edges 2a and 2b are joined to each other by welding, thereby forming a substantially square cylindrical closed cross section extending in the vertical direction. The rear end portion 10a of the apron member 10 is joined to the outer wall 20a of the pillar outer 20 by welding.

  A bulkhead 25 is disposed in the front pillar 2. The bulkhead 25 is for effectively transmitting the input at the time of collision from the apron member 10 to the door belt line rein hose 17 via the front pillar 2. The apron member 10, the door belt line rein hose 17, And the front pillar 2 is substantially closed.

  The bulkhead 25 includes a first bulkhead 26 having a U-shaped cross section that opens to the outside of the vehicle, and a second bulkhead 27 that is disposed in the first bulkhead 26 and has a U-shaped cross section that opens to the inside of the vehicle. Are joined to form a box cross section b extending in the vehicle longitudinal direction.

  The first bulkhead 26 bends and forms lateral side walls 26b and 26b extending outward from the vehicle at the upper and lower edges of the inner side wall 26a, and bends upper and lower flange portions 26c and 26c at the outer edge of each lateral side wall 26b. The rear flange portion 26d is formed on the rear edge of the inner wall 26a.

  Further, the second bulkhead 27 is formed by bending the side walls 27b and 27b extending inward of the vehicle at the upper and lower edges of the outer wall 27a, and the upper and lower flange portions 27c and 27c are bent at the inner edges of the respective side walls 27b. The leg portion 27d is formed on the rear edge of the outer wall 27a so as to extend so as to contact the rear flange portion 26d.

  The upper and lower flange portions 26 c of the first bulkhead 26 are joined to the pillar rein hose 22 by welding together with the pillar outer 20, and the rear flange portion 26 d is fixed to the pillar inner 21 by bolting.

  The outer wall 27a of the second bulkhead 27 is joined to the pillar rein hose 22 by welding together with the pillar outer 20, the leg portion 27d is connected to the rear flange portion 26d by welding, and the upper and lower flange portions 27c are connected to the second flange portion 27c. Along with the inner wall 26a of the bulkhead 26, the pillar inner 21 is fastened together with bolts.

  An in-vehicle component insertion portion 30 is formed in the vehicle front outer corner portion of the bulkhead 25 so as to penetrate in the vertical direction. The component insertion part 30 is formed by cutting out the front outer end portions of the respective lateral side walls 26b of the first bulkhead 26 and the respective lateral side walls 27b of the second bulkhead 27. The antenna 31 inserted from the antenna insertion hole 2d formed in the upper end portion of the front pillar 2 is inserted through the antenna 31.

  As shown in FIGS. 4 and 5, an antenna guide bead 33 is formed on the upper side of the bulkhead 25 of the pillar inner 21 so as to bulge outward from the vehicle. The antenna 31 abuts on the bead 33, is guided to the outside of the vehicle, and is inserted into the component insertion portion 30. That is, when viewed from the side of the vehicle, the front pillar 2 includes a lower half A that extends substantially vertically where the bulkhead 25 is disposed, and an upper half that extends obliquely upward and rearward from the upper end of the lower half A. It consists of part B. For this reason, the antenna 31 inserted from the antenna insertion hole 2d of the upper half B is easily caught by the bent portion of the front pillar 2, and it is difficult to smoothly insert the antenna 31 into the component insertion portion 30.

  On the other hand, in this embodiment, since the guide bead 33 is formed to bulge at a portion facing the component insertion portion 30 of the pillar inner 21, the antenna 31 is guided to the component insertion portion 30 without being caught by the guide bead 33. be able to. Thereby, the wiring work of the antenna 31 in the front pillar 2 which is not visible to the operator can be easily performed. The bead 33 also functions as a wrinkle remover when the pillar inner 21 is formed.

  According to the present embodiment, the bulkhead 25 is disposed in the front pillar 2 so as to substantially close the pillar 2, and the in-vehicle component insertion portion 30 is formed at the corner portion of the bulkhead 25 on the front side of the vehicle. In addition, the rigidity inside the bulkhead 25 with respect to the input load at the time of the collision can be secured, the cross-sectional collapse due to the deformation of the front pillar 2 can be prevented, and the input at the time of the collision can be efficiently transmitted to the door belt line rein hose 17. . In particular, in the case of a vehicle body structure in which the front sides of the left and right apron members 10 are arranged so as to enter the inside of the vehicle as described above, as shown in FIGS. This is effective when such a vehicle body structure is adopted because the input load is easily concentrated from the apron member 10 to the inside of the front pillar 2.

  In addition, since the in-vehicle component insertion portion 30 is formed outside the body of the bulkhead 25 that has a relatively small influence on the input load, the antenna 31 can be routed in the front pillar 2 without affecting the collision performance.

1 is a cross-sectional plan view of a bulkhead portion of a front pillar for explaining a pillar reinforcing structure for an automobile according to an embodiment of the present invention. It is a schematic perspective view of the front pillar provided with the bulkhead. It is a perspective view of the said bulkhead. It is a side view of the said front pillar. It is a top view of the said front pillar. It is a perspective view of the vehicle body of the said automobile. It is a figure which shows the input path | route at the time of a vehicle collision.

Explanation of symbols

2 Front pillar (pillar member)
DESCRIPTION OF SYMBOLS 10 Apron member 10a Rear end part 17 Door belt line rein hose 25 Bulk head 30 Vehicle-mounted component insertion part 31 Antenna (vehicle-mounted component)

Claims (1)

A rear end portion of an apron member extending forward of the vehicle is coupled to a cylindrical member having a closed cross-sectional cylindrical shape extending in the vertical direction of the vehicle, and a door belt line is provided so that the rear side of the pillar member is at substantially the same height as the apron member. In a pillar reinforcement structure of an automobile in which a rein hose is disposed, the front side of the apron member is disposed so as to enter the inside of the vehicle , and the apron member is disposed between the apron member and the door belt line rein hose. 1. A pillar reinforcing structure for an automobile, comprising a bulkhead that is positioned and that substantially closes the inside of the pillar member, and an in-vehicle component insertion portion is formed at a vehicle front outer corner portion of the bulkhead.

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