JP5471610B2 - Front pillar structure for vehicles - Google Patents

Description

  The present invention relates to a vehicle front pillar structure.

  Patent Document 1 listed below discloses a structure in which outer reinforcement is disposed between an outer panel and an inner panel as a rear edge frame portion of a triangular window portion in a front pillar having a triangular window portion.

Japanese Patent Laid-Open No. 11-235983

  In the case of the above prior art, the outer reinforcement which is a strength member is arranged outside the centroid of the rear edge frame portion of the triangular window portion in the front pillar, and at the time of frontal collision of the vehicle (hereinafter referred to as front collision) ) Is not sufficiently utilized as a strength member and is inefficient.

  In view of the above fact, an object of the present invention is to obtain a vehicle front pillar structure capable of improving the cross-sectional strength of the vehicle rear side frame portion of the triangular window portion.

The vehicle front pillar structure according to the first aspect of the present invention is disposed on the vehicle outer side of the front pillar, and an outer opening frame portion that constitutes a frame portion of the triangular window portion is formed in the vehicle vertical direction middle portion and the vehicle vertical direction. An inner panel extending along the vehicle vertical direction and at least a part of the frame portion of the triangular window portion formed at the vehicle vertical direction intermediate portion. An inner opening frame portion that is disposed between the panel, the outer panel, and the inner panel and that forms a frame portion of the triangular window portion is formed in the vehicle vertical direction middle portion and extends along the vehicle vertical direction. And the rear part of the said inner side opening frame part has the reinforcement arrange | positioned in the vehicle inner side rather than the centroid of the horizontal cross section of the vehicle rear side frame part of the said triangular window part.

  According to a second aspect of the present invention, in the vehicle front pillar structure according to the first aspect, the inner panel is configured such that a vehicle rear side of the triangular window portion is opened.

  A third aspect of the present invention is the vehicle front pillar structure according to the first or second aspect, wherein a rear portion of the inner opening frame portion in the reinforcement is a pair of front and rear front flange portions extending in the vehicle front-rear direction. And a rear flange portion, a front side wall portion extending from the vehicle rear end side of the front side flange portion toward the vehicle inner side, a vehicle inner end portion of the front side wall portion, and a vehicle front end portion of the rear side flange portion And an intermediate wall portion formed so as to be connected linearly in a horizontal section.

According to the first aspect of the present invention, the outer panel in which the outer opening frame portion constituting the frame portion of the triangular window portion is formed in the middle portion in the vehicle vertical direction, and at least a part of the frame portion of the triangular window portion is formed. Between the inner panel and the inner panel, a reinforcement in which an inner opening frame portion constituting the frame portion of the triangular window portion is formed is disposed. The rear part of the inner opening frame part in the reinforce is arranged on the inner side of the vehicle from the centroid of the horizontal section of the vehicle rear side frame part of the triangular window part. Reinforce can be strengthened by increasing the proof strength of the vehicle inside. Thereby, the cross-sectional strength of the vehicle rear side frame portion of the triangular window portion can be improved.

  According to the second aspect of the present invention, the inner panel has a configuration in which the vehicle rear side of the triangular window portion is opened, and the rear portion of the triangular window portion is not formed on the inner panel. In other words, by increasing the yield strength on the compression side (the vehicle inside from the centroid) on the rear side of the inner opening frame in the reinforce against the input at the time of the frontal collision of the vehicle, the inner panel is secured with the same strength as the conventional configuration Can be abolished (the rear part of the triangular window). This makes it possible to reduce the weight of the rear window frame of the triangular window.

  According to the third aspect of the present invention, the front wall portion extends from the vehicle rear end side of the front flange portion toward the vehicle inner side, and the vehicle inner end portion and the rear flange portion of the front wall portion are provided in the reinforcement. The intermediate wall part which connects the vehicle front-end part to a linear form is formed, and the cross-section line length of reinforcement can be shortened. For this reason, the further weight reduction of the vehicle rear side frame part of a triangular window part is possible.

  As described above, the vehicle front pillar structure according to the first aspect of the present invention has an excellent effect that the cross-sectional strength of the vehicle rear side frame portion of the triangular window portion can be improved.

  The vehicle front pillar structure according to the second aspect of the present invention has an excellent effect that the vehicle rear side frame portion of the triangular window portion can be reduced in weight by eliminating a part of the inner panel.

  The vehicle front pillar structure according to the third aspect of the present invention has an excellent effect that it is possible to further reduce the weight of the vehicle rear side frame portion of the triangular window portion.

It is a perspective view showing the vehicles provided with the front pillar structure for vehicles concerning a 1st embodiment. It is a disassembled side view which shows the structure of the inner panel and reinforcement panel of the vehicle front pillar structure which concern on 1st Embodiment. It is a side view showing the front pillar structure for vehicles concerning a 1st embodiment. FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. 1 and is a view illustrating a vehicle rear side frame portion of a triangular window portion in the vehicle front pillar structure. It is a disassembled side view which shows the structure of the inner panel and reinforcement panel of the front pillar structure for vehicles which concern on 2nd Embodiment. It is a side view which shows the front pillar structure for vehicles which concerns on 2nd Embodiment. It is a cross-sectional view which shows the vehicle rear side frame part of the triangular window part in the vehicle front pillar structure which concerns on 2nd Embodiment. It is a cross-sectional view which shows the vehicle rear side frame part of the triangular window part in the conventional front pillar structure for vehicles.

  Hereinafter, a first embodiment of a vehicle front pillar structure according to the present invention will be described with reference to FIGS. In these drawings, an arrow FR appropriately shown indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow OUT indicates the vehicle width direction outer side.

  FIG. 1 is a perspective view of a vehicle 10 to which a vehicle front pillar structure is applied. As shown in this figure, the body body 11 of the vehicle 10 is provided with a vehicle compartment 14 on the vehicle rear side of the engine room covered with a hood 12. Side sill 16 extending along both sides in the vehicle width direction (not shown) is provided. A roof panel 18 is disposed in the upper part of the vehicle in the passenger compartment 14, and roof side rails 20 are disposed along the vehicle longitudinal direction on both sides of the roof panel 18 in the vehicle width direction.

  A front pillar 22 extending in the vehicle vertical direction and extending obliquely upward from the vehicle vertical direction intermediate portion to the vehicle rear side is disposed on the vehicle front side of the side sill 16 and the roof side rail 20 on both sides of the vehicle 10. Yes. The lower end portion of the front pillar 22 is coupled to the front end portion of the side sill 16, and the upper end portion of the front pillar 22 is coupled to the front end portion of the roof side rail 20. On the vehicle front side of the passenger compartment 14, a window shield glass 24 that is gently inclined toward the vehicle upper side is disposed between the front pillars 22 on both sides in the vehicle width direction. A front side door 26 is disposed in an opening surrounded by the roof side rail 20, the front pillar 22, the side sill 16, and a center pillar (not shown) so as to be opened and closed by a door hinge (not shown).

  A triangular window 30 for securing a field of view on the side of the vehicle is provided at an intermediate portion of the front pillar 22 in the vehicle vertical direction. The front pillar 22 includes a front inclined frame portion 32 extending along the vehicle front edge of the triangular window portion 30 so as to have a gentle upward slope toward the vehicle rear side, and a vehicle along the vehicle rear edge of the triangular window portion 30. A rear vertical frame portion 34 serving as a vehicle rear side frame portion extending in the vertical direction and a lower horizontal frame portion 36 extending in the vehicle front-rear direction along the vehicle lower edge of the triangular window portion 30 are formed.

  2 shows an exploded side view of the pillar inner panel and the outer reinforcement constituting the front pillar 22, and FIG. 3 shows a side view of the front pillar 22. As shown in these drawings, the front pillar 22 includes a pillar inner panel 38 disposed on the inner side in the vehicle width direction, a reinforcing outer reinforcement 40 disposed on the outer side in the vehicle width direction than the pillar inner panel 38, and And a side member outer panel 42 (cymen outer) disposed on the outer side in the vehicle width direction with respect to the outer reinforcement 40. In FIG. 3, the side member outer panel 42 is illustrated by a two-dot chain line in order to facilitate understanding of the configuration of the front pillar 22.

  The pillar inner panel 38 includes an upper inner panel 44 that forms an upper portion of the pillar inner panel 38 and is disposed at a position corresponding to the front inclined frame portion 32 (see FIG. 1), and a vehicle rear portion on the upper portion of the pillar inner panel 38. Forming a rear inner panel 46 disposed at a position corresponding to the rear vertical frame portion 34 (see FIG. 1) and a lower portion of the pillar inner panel 38 to form the lower horizontal frame portion 36 (see FIG. 1). And a lower inner panel 48 arranged at a corresponding position.

  The upper inner panel 44 is formed with a front end lower portion 44A in which the vehicle front end extends toward the vehicle lower side. The lower inner panel 48 is formed with a front upper end portion 48A and a rear upper end portion 48B in which corners of the front and rear of the upper end portion are notched. A front end lower portion 44A of the upper inner panel 44 and a front upper end portion 48A of the lower inner panel 48 are joined by welding or the like, and a rear end lower portion 44B of the upper inner panel 44 and an upper end portion 46A of the rear inner panel 46 are welded or the like. It is joined by. Further, the lower end 46B of the rear inner panel 46 and the rear upper end 48B of the lower inner panel 48 are joined by welding or the like. Thereby, a pillar inner panel 38 in which the upper inner panel 44, the rear inner panel 46, and the lower inner panel 48 are integrated is formed. An opening 50 is formed in a portion surrounded by the upper inner panel 44, the rear inner panel 46, and the lower inner panel 48. The opening 50 is formed in a substantially rectangular shape and narrows toward the front of the vehicle. The periphery of the opening 50 is an opening frame portion. ing. The opening 50 of the pillar inner panel 38 is disposed at a position corresponding to the triangular window 30 (see FIG. 1).

  The outer reinforcement 40 includes an upper outer reinforcement 52 that forms the upper part of the outer reinforcement 40 and a lower outer reinforcement 54 that forms the lower part of the outer reinforcement 40.

  The upper outer reinforcement 52 is provided with an opening 56 formed in a substantially rectangular shape at the middle in the vehicle vertical direction so that the front of the vehicle is thin. The upper outer reinforcement 52 includes a front frame portion 52 </ b> A that extends in a substantially L shape so as to rise upward along the vehicle front edge of the opening 56 and a vehicle rear edge of the opening 56. A rear frame portion 52B extending in the vehicle vertical direction and a lower frame portion 52C extending in the vehicle front-rear direction along the vehicle lower edge of the opening 56 are formed. The opening portion 56 of the upper outer reinforcement 52 is disposed at a position corresponding to the triangular window portion 30 (see FIG. 1), and the front frame portion 52A, the rear frame portion 52B, and the lower frame portion 52C have an “inner opening”. A “frame” is configured. That is, the rear frame portion 52B is “the rear portion of the inner opening frame portion”.

  The lower outer reinforcement 52 and the lower outer reinforcement 54 are integrated by joining the lower end 52D below the vehicle with the lower frame 52C of the upper outer reinforcement 52 and the upper end 54A of the lower outer reinforcement 54 by welding or the like. The outer reinforcement 40 thus formed is formed. The outer reinforcement 40 is joined to the pillar inner panel 38 by welding or the like.

  The side member outer panel 42 covers the vehicle outer side of the outer reinforcement 40, and includes an outer opening frame portion as a triangular window portion 30 (see FIG. 1) at a middle portion in the vehicle vertical direction. Although not shown, the upper and lower portions of the side member outer panel 42 are extended to the vehicle rear side.

  4 shows a cross-sectional view of the rear vertical frame portion 34 of the front pillar 22 taken along line 2-2 in FIG. As shown in this figure, the rear vertical frame portion 34 includes a rear frame portion 42A of the side member outer panel 42, and an upper outer reinforcement 52 (outer reinforcement 40) disposed on the inner side in the vehicle width direction from the rear frame portion 42A. ) A rear frame portion 52B and a rear inner panel 46 (pillar inner panel 38) disposed on the inner side in the vehicle width direction from the rear frame portion 52B.

  A rear frame portion 42A of the side member outer panel 42 extends from the vehicle rear end portion of the front flange portion 42B toward the vehicle inner side, and extends toward the vehicle rear side at the intermediate portion. A vertical wall portion 42C bent in a substantially S shape and a rear flange portion 42D extending from the vehicle inner end portion of the vertical wall portion 42C to the rear side in the vehicle front-rear direction are provided.

  The rear frame portion 52B of the upper outer reinforcement 52 includes a front flange portion 52E extending forward in the vehicle front-rear direction, a front side wall portion 52F extending from the vehicle rear end portion of the front flange portion 52E toward the vehicle inner side, and a front side wall portion. A substantially straight vertical wall portion 52G (intermediate wall portion) that extends obliquely from the vehicle inner end portion of 52F to the vehicle rear side and the vehicle inner side, and extends from the vehicle inner end portion of the vertical wall portion 52G to the vehicle front-rear direction rear side. A rear flange portion 52H.

  The rear inner panel 46 extends from the vehicle rear end of the front flange 46C toward the vehicle inner side and extends substantially in an L shape from the vehicle inner end to the vehicle rear side. And a rear flange portion 46E extending from the vehicle rear end portion of the vertical wall portion 46D to the rear side in the vehicle front-rear direction.

  The front flange portion 42B of the side member outer panel 42, the front flange portion 52E of the upper outer reinforcement 52, and the front flange portion 46C of the rear inner panel 46 are joined by welding (spot welding) in a state of being overlapped in the vehicle width direction. Yes. The rear flange portion 42D of the side member outer panel 42, the rear flange portion 52H of the upper outer reinforcement 52, and the rear flange portion 46E of the rear inner panel 46 are overlapped in the vehicle width direction by welding (spot welding). It is joined. Thereby, the rear side vertical frame part 34 of the front pillar 22 is formed in the closed cross-section structure.

  The joints of the rear flange portion 42D of the side member outer panel 42, the rear flange portion 52H of the upper outer reinforcement 52, and the rear flange portion 46E of the rear inner panel 46 are substantially provided in the door opening molding 62. A U-shaped attachment portion 62A is fitted. The door opening molding 62 is formed of an elastic body such as rubber.

  A frame-like door frame 64 that constitutes an upper portion of the front side door 26 is disposed on the vehicle outer side of the rear vertical frame portion 34. In FIG. 4, the front portion of the frame-shaped door frame 64 is shown. A door glass run 66 made of an elastic material such as rubber is fitted on the inner peripheral side of the door frame 64. The door glass 68 is disposed so as to be elastically pressed against the inside of the door glass run 66, and the sealing property when the door glass 68 is closed and when it is raised and lowered is ensured. A weather strip 70 made of an elastic material such as rubber is fitted to the outer peripheral side of the door frame 64. The weather strip 70 is secured by sealing and deforming by contact with the vertical wall portion 42C of the side member outer panel 42 when the front side door 26 is closed.

  A resin outer pillar garnish 72 is attached to the outside of the front flange portion 42B of the side member outer panel 42 in the vehicle width direction by an adhesive 74. A rear end portion of the window shield glass 31 of the triangular window portion 30 is attached to a hollow portion 72 </ b> A formed on the vehicle outer side of the pillar outer garnish 72.

  A resin-made pillar inner garnish 76 is disposed along the rear inner panel 46 on the vehicle inner side of the rear vertical frame portion 34. The rear end portion 76 </ b> A of the pillar inner garnish 76 is in contact with the door opening molding 62, and the front end portion 76 </ b> B of the pillar inner garnish 76 extends to a position close to the window shield glass 31.

  In such a rear vertical frame portion 34, the substantially straight vertical wall portion 52 </ b> G of the upper outer reinforcement 52 that is a strength member is passed inward in the vehicle width direction from the centroid 60 of the horizontal cross section of the rear vertical frame portion 34. Are arranged as follows. The rear vertical frame portion 34 is compressed on the inner side in the vehicle width direction than the centroid 60 with respect to the input at the time of the front collision of the vehicle 10, but the substantially vertical vertical wall portion 52 </ b> G of the upper outer reinforcement 52 is illustrated. By arranging the inner side in the vehicle width direction with respect to the center 60, the compression-side proof stress is increased with respect to the input at the time of the front collision.

  Next, the operation and effect of this embodiment will be described.

  The rear vertical frame portion 34 constituting the front pillar 22 is provided with a rear frame portion 52B of the upper outer reinforcement 52, which is a strength member, between the rear inner panel 46 and the rear frame portion 42A of the side member outer panel 42. Has been. The substantially straight vertical wall portion 52G of the upper outer reinforcement 52 is disposed so as to pass inward in the vehicle width direction from the centroid 60 of the horizontal cross section of the rear vertical frame portion 34. The rear vertical frame portion 34 is compressed on the inner side in the vehicle width direction than the centroid 60 with respect to the input at the time of the front collision of the vehicle 10, but the substantially vertical vertical wall portion 52 </ b> G of the upper outer reinforcement 52 is illustrated. By disposing the inner side in the vehicle width direction with respect to the center 60, it is possible to increase the compressive strength against the input at the time of the front collision, and to increase the strength of the upper outer reinforcement 52. As a result, the cross-sectional strength of the rear vertical frame portion 34 can be improved. Further, compared to the case where the rear frame portion of the upper outer reinforcement is arranged outside the centroid 60 in the vehicle width direction, the plate thickness of the rear frame portion 52B of the upper outer reinforcement 52 can be reduced. The weight of the reinforcement 52 can be reduced.

  Further, the rear frame portion 52B of the upper outer reinforcement 52 is provided with a vertical wall portion 52G having a substantially linear cross section connecting the vehicle inner end portion of the front side wall portion 52F and the vehicle front end portion of the rear flange portion 52H. Therefore, the horizontal total length (cross-sectional line length) of the rear frame portion 52B of the upper outer reinforcement 52 can be shortened. For this reason, the further weight reduction of the upper outer reinforcement 52 is realizable.

  FIG. 8 is a cross-sectional view of the rear vertical frame portion 102 of the triangular window portion of the front pillar 100 according to the comparative example. As shown in this figure, the rear frame portion 104A of the upper outer reinforcement 104 includes a front flange portion 104B extending toward the vehicle front side, and a front side wall portion extending toward the vehicle inner side from the vehicle rear end portion of the front flange portion 104B. 104C, a vertical wall portion 104D bent from the vehicle inner side end portion of the front side wall portion 104C toward the vehicle rear side and bent to the vehicle inner side in a substantially L-shaped cross section at an intermediate portion, and a vehicle inner end of the vertical wall portion 104D A rear flange portion 104E extending from the portion toward the vehicle rear side. The front wall portion 104C and the vertical wall portion 104D are disposed along the vertical wall portion 42C of the side member outer panel 42.

  In this rear vertical frame portion 102, the vehicle width direction inner side is compressed from the centroid 106 of the horizontal cross section of the rear vertical frame portion 102 with respect to the input at the time of the front collision, but the upper outer reinforcement 104 which is a strength member is compressed. The front wall portion 104C and the vertical wall portion 104D are disposed so as to pass outside in the vehicle width direction from the centroid 106, and the rear inner panel 46 is a thin plate and is not utilized as a strength member. Therefore, it is necessary to increase the plate thickness of the rear frame portion 104A of the upper outer reinforcement 104.

  On the other hand, in the present embodiment, the vertical wall portion 52G of the upper outer reinforcement 52 is disposed so as to pass inward in the vehicle width direction with respect to the centroid 60, and the compression-side proof strength with respect to the input at the time of the front collision. And the cross-sectional strength can be improved. Therefore, the plate thickness of the rear frame portion 52B of the upper outer reinforcement 52 can be made thinner than the rear frame portion 104A of the upper outer reinforcement 104, and the weight of the upper outer reinforcement 104 can be realized.

  Next, a second embodiment of the vehicle front pillar structure according to the present invention will be described with reference to FIGS. In addition, about the same component as 1st Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 5 to FIG. 7, the front pillar 80 includes a pillar inner panel 82, an outer reinforcement 40, and a side member outer panel 42 (cymen outer). The difference from the first embodiment is that the pillar inner panel 82 includes an upper inner panel 84 that forms an upper portion of the pillar inner panel 38 and is disposed at a position corresponding to the front inclined frame portion 32 (see FIG. 1). A lower inner panel 86 that forms a lower portion of the pillar inner panel 82 and is disposed at a position corresponding to the lower horizontal frame portion 36 (see FIG. 1), and the vehicle rear side of the pillar inner panel 82 is opened. Has been. In other words, the pillar inner panel 82 is not provided with a rear inner panel at the rear of the triangular window 30 (see FIG. 1).

  As compared with the lower inner panel 48 of the first embodiment, the lower inner panel 86 has a rear upper end 86A that extends toward the vehicle upper side. A pillar inner panel 82 in which the upper inner panel 44 and the lower inner panel 86 are integrated is formed by joining the front end lower portion 44A of the upper inner panel 44 and the front upper end portion 48A of the lower inner panel 48 by welding or the like. Has been.

  7, the rear vertical frame portion 81 of the front pillar 80 includes a rear frame portion 42A of the side member outer panel 42 and a rear frame portion 52B of the upper outer reinforcement 52 (outer reinforcement 40). It is configured. That is, the rear inner panel is not provided on the inner side in the vehicle width direction of the rear frame portion 52B of the upper outer reinforcement 52.

  The rear vertical frame portion 81 of the front pillar 80 has a rear inner panel that is a part of the pillar inner panel 82 while ensuring the same strength as the rear vertical frame portion 102 (see FIG. 8) of the comparative example. Can be abolished. For this reason, further weight reduction of the rear side vertical frame part 81 is realizable. In addition, through the reduction of the number of parts, the cost can be reduced by reducing the number of dies and the number of welding points. Furthermore, by eliminating the rear inner panel, the visibility of the rear vertical frame portion 81 can be improved.

  In the first embodiment, the rear frame portion 52B of the upper outer reinforcement 52 includes a front side wall portion 52F and a substantially straight vertical wall portion 52G extending obliquely from the front side wall portion 52F. The position and shape of the front wall portion 52F and the vertical wall portion 52G of the upper outer reinforcement 52 can be changed as long as the configuration is arranged on the inner side in the vehicle width direction than the centroid 60 of the horizontal section of the rear vertical frame portion. is there.

10 Vehicle 22 Front Pillar 30 Triangular Window 34 Rear Vertical Frame (Vehicle Rear Frame)
38 Pillar inner panel (Inner panel)
40 Outer Reinforce (Reinforce)
42 Side member outer panel (outer panel)
42A Rear frame (outside opening frame)
46 Rear inner panel (inner panel)
52 Upper Outer Reinforce (Reinforce)
52A Front frame (inner opening frame)
52B Rear frame (rear part of inner opening frame)
52C Lower frame (inner opening frame)
52E Front flange 52F Front wall 52G Vertical wall (intermediate wall)
52H Rear flange 60 Centroid 80 Front pillar 81 Rear vertical frame (vehicle rear frame)
82 Pillar inner panel (inner panel)
84 Upper Inner Panel (Inner Panel)

Claims (3)

An outer panel that is disposed on the vehicle outer side of the front pillar, and has an outer opening frame portion that forms a frame portion of the triangular window portion in the vehicle vertical direction intermediate portion and extends along the vehicle vertical direction;
An inner panel that is disposed on the vehicle inner side than the outer panel, and at least a part of the frame portion of the triangular window portion is formed at the vehicle vertical direction intermediate portion and extends along the vehicle vertical direction;
An inner opening frame portion that is disposed between the outer panel and the inner panel, and that forms a frame portion of the triangular window portion at a vehicle vertical direction intermediate portion, and extends along the vehicle vertical direction; and Reinforce that the rear part of the inner opening frame part is arranged on the vehicle inner side than the centroid of the horizontal cross section of the vehicle rear side frame part of the triangular window part,
A vehicle front pillar structure.   2. The vehicle front pillar structure according to claim 1, wherein the inner panel is configured such that a vehicle rear side of the triangular window portion is opened. The rear part of the inner opening frame in the reinforcement is
A pair of front and rear front flanges and rear flanges extending in the vehicle longitudinal direction;
A front side wall portion extending from the vehicle rear end side of the front flange portion toward the vehicle inner side;
An intermediate wall portion formed so as to connect the vehicle inner end portion of the front side wall portion and the vehicle front end portion of the rear flange portion linearly in a horizontal section;
The front pillar structure for vehicles according to claim 1 or 2 which has these.

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