WO2014167742A1 - 車体構造 - Google Patents
車体構造 Download PDFInfo
- Publication number
- WO2014167742A1 WO2014167742A1 PCT/JP2013/076437 JP2013076437W WO2014167742A1 WO 2014167742 A1 WO2014167742 A1 WO 2014167742A1 JP 2013076437 W JP2013076437 W JP 2013076437W WO 2014167742 A1 WO2014167742 A1 WO 2014167742A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- front pillar
- side rail
- roof
- reinforcing member
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/06—Fixed roofs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
- B62D29/002—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material a foamable synthetic material or metal being added in situ
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
Definitions
- the present invention relates to a vehicle body structure.
- the roof side rail portion is constituted by a roof side rail inner panel and a roof side rail outer panel in a closed cross-sectional structure.
- the front end portion of the roof side rail having the closed cross-section structure is connected to the rear end portion of the front pillar, thereby forming a vehicle body skeleton structure extending from the top of the front pillar to the front portion of the roof side rail. ing.
- the present invention provides a vehicle body structure capable of suppressing or preventing the vehicle body skeleton portion having a hollow closed cross-section structure from the upper part of the front pillar to the front part of the roof side rail at the time of a frontal collision. Is the purpose.
- the vehicle body structure according to the first aspect includes a roof side rail that is arranged along the vehicle longitudinal direction on both sides of the roof in the vehicle width direction and that is configured as a beam-like vehicle body skeleton member having a hollow closed cross-sectional structure.
- the front side of the roof side rail is disposed including a connection position with a front roof header disposed along the upper end portion of the windshield glass, and at least the internal space of the hollow closed cross section at the front portion of the roof side rail And a resin-made first reinforcing member provided along the longitudinal direction of the front portion of the roof side rail so as to be partially filled.
- a vehicle body structure includes, in the first aspect, a front pillar that is disposed on both sides of the front portion of the cabin and is configured as a columnar vehicle body skeleton member having a hollow closed cross-sectional structure.
- the upper part and the front side of the roof side rail are disposed so as to include a connecting position, and are provided so as to fill at least a part of the internal space of the hollow closed cross-sectional part at the upper part of the front pillar and the front part of the roof side rail.
- a second reinforcing member made of resin, and the front side of the roof side rail is connected to the front side of the roof side rail from the connecting position between the upper portion of the front pillar and the front side of the roof side rail by the first reinforcing member and the second reinforcing member.
- a continuous reinforcing member disposition region is set in a range reaching a connection position with the front roof header in the portion.
- the vehicle body structure includes a front pillar outer reinforcement that forms part of the front pillar and is disposed on the vehicle width direction outer side and is disposed along the vehicle front-rear direction on the extension of the roof side rail; A part of the front pillar, which extends in the vehicle vertical direction along the rear end portion of the fixed window disposed on the vehicle lower side of the front pillar outer reinforcement, and at the end portion on the vehicle rear side; An auxiliary pillar portion formed with a front pillar side portion of a door opening flange disposed along a peripheral edge portion of a door opening portion of the side door, and the front pillar outer reinforcement so as to straddle the front pillar side portion of the door opening flange. A long third reinforcing member disposed inside the vehicle in the vehicle width direction.
- the front pillar outer reinforcement includes a plurality of ridge lines extending in the longitudinal direction of the front outer reinforcement and aligned in the vehicle width direction.
- the third reinforcing member has a reinforcing effect against a longitudinal bending moment that vertically folds the plurality of ridge lines in the vehicle vertical direction, and is laterally bent to horizontally fold the plurality of ridge lines in the vehicle width direction.
- One or two or more stiffness tuning portions formed to be a starting point for bending with respect to the moment are provided.
- the rigidity tuning portion is a groove-shaped vertical bead formed so as to be orthogonal to the plurality of ridge line portions.
- the operation of the first aspect is as follows.
- the collision load at that time is input to the front part of the vehicle body and then transmitted to the front part of the roof side rail through the upper part of the front pillar.
- the compressive load transmitted at this time is very large, bending deformation (buckling) is likely to occur if there is a portion where stress concentration tends to occur in the body frame from the upper part of the front pillar to the front part of the roof side rail.
- the first reinforcing member is disposed including the connection position with the front roof header disposed along the upper end portion of the windshield glass at the front portion of the roof side rail in a vehicle side view.
- the first reinforcing member is made of resin and is provided along the longitudinal direction of the front portion of the roof side rail so as to fill at least a part of the internal space of the hollow closed cross section at the front portion of the roof side rail.
- the rigidity of the connection position with the front roof header at the front portion of the roof side rail is increased. Accordingly, the collision load (axial compression load) transmitted from the upper part of the front pillar to the front part of the roof side rail can be transmitted not only to the front part of the roof side rail but also to the front roof header.
- the collision load transmitted from the front of the vehicle body to the cabin skeleton during a frontal collision is transmitted from the upper part of the front pillar on the collision side to the front part of the roof side rail, and further from the front roof header to the opposite side of the collision side. Can be distributed and transmitted to the roof side rail. For this reason, the input load to the joint of members, such as the connection part of the upper part of a front pillar and the front part of a roof side rail, can be reduced.
- a second reinforcing member made of resin is provided so as to fill the gap.
- the reinforcing member is continuously arranged across the position and the position of the front side of the roof side rail and the front roof header).
- the front pillar includes a fixed window and an auxiliary pillar portion. More specifically, a front pillar outer reinforcement arranged along the vehicle front-rear direction on the extension of the roof side rail is arranged outside the vehicle width direction of the front pillar, and the fixed window is the front pillar outer reinforcement. Arranged on the lower side of the vehicle. Further, the auxiliary pillar portion extends in the vehicle vertical direction along the rear end portion of the fixed window. A front pillar side portion of the door opening flange is formed at an end of the auxiliary pillar portion on the vehicle rear side.
- the elongated third reinforcing member is disposed so as to straddle the front pillar side portion of the door opening flange on the inner side in the vehicle width direction of the front pillar outer reinforcement, Drag. For this reason, the site
- the front pillar outer reinforcement has a plurality of ridge lines extending along the longitudinal direction of the front outer reinforcement and aligned in the vehicle width direction.
- the third reinforcing member has a reinforcing effect against a longitudinal bending moment that vertically folds the plurality of ridge lines of the front pillar outer reinforcement in the vehicle vertical direction, and the plurality of ridge lines are folded in the vehicle width direction.
- One or two or more stiffness tuning portions are provided so as to be a starting point for the bending moment to be generated.
- the front pillar outer reinforcement sufficiently resists the bending moment that acts during a collision such as a minute lap collision and suppresses the bending deformation, and at the same time, the front pillar outer reinforcement is bent and deformed outward in the vehicle width direction. To absorb some of it. Thereby, the retraction amount of the front pillar is suppressed.
- the rigidity tuning portion is a groove-shaped vertical bead, the rigidity can be easily changed depending on the width and depth of the bead.
- the vehicle body structure according to the first aspect of the present invention suppresses the vehicle body frame portion of the hollow closed cross-sectional structure from breaking in the middle from the upper part of the front pillar to the front part of the roof side rail at the time of a frontal collision. Or it has the outstanding effect that it can prevent.
- the vehicle body structure according to the second aspect of the present invention is very effective at suppressing the breakage of the vehicle body skeleton portion of the hollow closed cross-section structure from the upper part of the front pillar to the front part of the roof side rail at the time of frontal collision. It has an excellent effect that it can be prevented.
- the vehicle body structure according to the third aspect is excellent in that it can suppress or prevent the vehicle body skeleton part of the hollow closed cross-section structure from being broken in the middle from the upper part of the front pillar to the front part of the roof side rail at the time of a frontal collision. Has an effect.
- the vehicle body structure according to the fourth aspect has an excellent effect that the bending deformation caused by the longitudinal bending moment can be effectively suppressed and the bending deformation caused by the lateral bending moment can be promoted.
- the vehicle body structure according to the fifth aspect has an excellent effect that the balance between vertical folding and horizontal folding can be easily tuned.
- FIG. 1 is an external perspective view of a vehicle to which a vehicle body structure according to a first embodiment is applied.
- FIG. 3 is a longitudinal sectional view taken along line 3-3 in FIG. 1.
- FIG. 4 is a longitudinal sectional view taken along line 4-4 of FIG.
- FIG. 5 is a longitudinal sectional view taken along line 5-5 in FIG.
- FIG. 6 is a longitudinal sectional view taken along line 6-6 in FIG.
- It is a schematic plan view which shows the collision state of the vehicle which concerns on contrast.
- It is a schematic side view which shows the collision state of the vehicle which concerns on comparison.
- FIG. 1 is an external perspective view of a vehicle to which a vehicle body structure according to a first embodiment is applied.
- FIG. 3 is a longitudinal sectional view taken along line 3-3 in FIG. 1.
- FIG. 4 is a longitudinal sectional view taken along line 4-4 of FIG.
- FIG. 5 is a longitudinal sectional view taken along line 5-5 in FIG.
- FIG. 6 is a longitudinal section
- FIG. 5 is an FS diagram when a vehicle to which the vehicle body structure according to the first embodiment is applied and a vehicle to which the vehicle body structure according to the proportionality is applied collides front.
- FIG. 5 is a schematic side view of a vehicle body illustrating a main part of a vehicle body structure according to another embodiment, with a front pillar as a center.
- FIG. 10 is a schematic closed plan view showing a collision state of a vehicle including the front pillar shown in FIG. 9.
- FIG. 7B is a schematic diagram schematically illustrating the bending deformation mode shown in FIG. 7A. It is the schematic diagram which represented the bending deformation mode shown by FIG. It is a side view which shows the vehicle body side part of the vehicle body structure which concerns on 2nd Embodiment.
- FIG. 5 is a schematic side view of a vehicle body illustrating a main part of a vehicle body structure according to another embodiment, with a front pillar as a center.
- FIG. 10 is a schematic closed plan view showing a collision
- FIG. 13 is a perspective view close to a side view mainly showing a reinforcing member according to a main part of the vehicle body structure shown in FIG. 12.
- FIG. 13 is a side view mainly showing a reinforcing member according to a main part of the vehicle body structure shown in FIG.
- FIG. 15 is a longitudinal sectional view taken along line 15-15 in FIG. It is an expansion perspective view which shows the reinforcement member shown by FIG. 13 by a single item.
- It is a top view which simulated the vehicle which concerns on contrast.
- It is a top view which shows a mode when the vehicle shown by FIG. 17A carries out the micro lap collision.
- It is a top view which simulated the vehicle provided with the vehicle body structure shown by FIG.
- It is a top view which shows a mode when the vehicle shown by FIG. 18A carries out the micro lap collision.
- FIGS. An arrow FR appropriately shown indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow IN indicates the vehicle width direction inner side.
- FIG. 2 is a perspective view showing the appearance of a vehicle to which the vehicle body structure according to the present invention is applied.
- the vehicle includes a vehicle front portion 10 in which an engine (not shown) or the like is accommodated, and a cabin 12 disposed on the vehicle rear side of the vehicle front portion 10.
- the engine room and the cabin 12 are partitioned by a dash panel (not shown).
- a pair of left and right front pillars 14 each configured as a columnar vehicle body skeleton member are erected on both sides of the dash panel in the vehicle width direction.
- the upper part 14A of the front pillar 14 is gently inclined toward the vehicle rear side, and a windshield glass 16 is mounted between the upper parts 14A of the front pillars 14.
- a roof panel 18 as a roof is disposed on the cabin 12.
- a pair of left and right roof side rails 20 configured as a beam-like vehicle body skeleton member having a hollow closed cross-sectional structure are disposed.
- the above-described upper portion 14 ⁇ / b> A of the front pillar 14 is continuously connected to the front portion 20 ⁇ / b> A of the roof side rail 20.
- a center pillar 22 (see FIG. 1) and a rear pillar 24 are arranged in this order on the vehicle rear side of the front pillar 14, and the upper end portion of the center pillar 22 and the upper end portion of the rear pillar 24 are both roof side rails. 20 is joined.
- a front side door 26 is provided between the front pillar 14 and the center pillar 22 so as to be opened and closed
- a rear side door 28 is provided between the center pillar 22 and the rear pillar 24 so as to be opened and closed.
- a front roof header 30 (see FIG. 1) having a longitudinal direction in the vehicle width direction is disposed on the back side of the front end portion of the roof panel 18 described above.
- the front roof header 30 is configured in a closed cross-sectional structure by a roof header upper panel 32 and a roof header lower panel 34 each having a hat-shaped cross section. Both ends in the longitudinal direction of the front roof header 30 are joined to the left and right roof side rails 20 by welding.
- the above-described upper end portion 16A of the windshield glass 16 is supported by the front flange portion 32A of the roof header upper panel 32.
- the structure of the front roof header 30 is not limited to the above, and other structures may be adopted.
- the front pillar 14 includes a front pillar outer panel 36 disposed outside the vehicle compartment, a front pillar inner panel 38 disposed inside the front pillar outer panel 36 in the vehicle width direction, and a front pillar. It is comprised by the side outer panel 40 which is arrange
- the front pillar outer panel 36 includes a lower flange portion 36A extending toward the vehicle lower side, an upper flange portion 36B extending toward the inner side in the vehicle width direction, and a lower flange portion 36A. And an upper flange portion 36B, and a main body portion 36C that protrudes outward in the vehicle width direction, and is formed in a substantially hat shape that is open to the inner side in the vehicle width direction as a whole.
- the front pillar inner panel 38 includes a lower flange portion 38A overlaid on the lower flange portion 36A of the front pillar outer panel 36, an upper flange portion 38B overlaid on the upper flange portion 36B of the front pillar outer panel 36, and a lower flange portion.
- 38A and an upper flange portion 38B, and a main body portion 38C that closes an open portion of the main body portion 36C of the front pillar outer panel 36, and as a whole, has a shallow bottom that slightly bulges inward in the vehicle width direction. It is formed in a substantially hat shape.
- the side outer panel 40 includes a lower flange portion 40A, an upper flange portion 40B, and a main body portion 40C so as to follow the cross-sectional shape of the front pillar outer panel 36, and is formed in a substantially hat shape that is open to the inner side in the vehicle width direction. ing.
- the lower flange portion 36A of the above-described front pillar outer panel 36, the lower flange portion 38A of the front pillar inner panel 38, and the lower flange portion 40A of the side outer panel 40 are joined by spot welding in a stacked state.
- the upper flange portion 36B of the front pillar outer panel 36, the upper flange portion 38B of the front pillar inner panel 38, and the upper flange portion 40B of the side outer panel 40 are joined by spot welding in a stacked state.
- a first closed cross-section portion 42 is formed between the main body portion 36C of the front pillar outer panel 36 and the main body portion 38C of the front pillar inner panel 38.
- a second closed cross-section 44 is formed between the main body 36 ⁇ / b> B of the front pillar outer panel 36 and the main body 40 ⁇ / b> C of the side outer panel 40.
- the roof side rail 20 includes a roof side rail outer panel 46 disposed outside the passenger compartment, and a roof side rail inner panel 48 disposed inside the roof side rail outer panel 46 in the vehicle width direction. And a side outer panel 40 that is disposed outside the roof side rail outer panel 46 in the vehicle width direction and that constitutes the outer plate of the vehicle. Since the side outer panel 40 shown in FIGS. 5 and 6 and the side outer panel 40 shown in FIGS. 3 and 4 are the same member, description of the side outer panel 40 is omitted.
- the roof side rail outer panel 46 includes a lower flange portion 46A extending toward the vehicle lower side, an upper flange portion 46B extending toward the vehicle width direction inner side and obliquely upward, the lower flange portion 46A, and the upper flange. And a main body portion 46C that is arranged between the portion 46B and connects the two in an L-shape, and is formed in a substantially hat shape that is open to the inside in the vehicle width direction as a whole.
- the roof side rail inner panel 48 includes a lower flange portion 48A overlaid on the lower flange portion 46A of the roof side rail outer panel 46, an upper flange portion 48B overlaid on the upper flange portion 46B of the roof side rail outer panel 46, A main body portion 48C disposed between the lower flange portion 48A and the upper flange portion 48B and closing the open portion of the main body portion 46C of the roof side rail outer panel 46, and as a whole, slightly inflates inward in the vehicle width direction. It is formed in a roughly hat shape with a shallow bottom.
- the lower flange portion 46A of the roof side rail outer panel 46, the lower flange portion 46A of the roof side rail inner panel 48, and the lower flange portion 40A of the side outer panel 40 are joined by spot welding in a state of being overlapped.
- a third closed cross-section portion 50 is formed between the main body portion 46C of the roof side rail outer panel 46 and the main body portion 48C of the roof side rail inner panel 48.
- a fourth closed cross section is formed between the main body 46 ⁇ / b> C of the roof side rail outer panel 46 and the main body 40 ⁇ / b> C of the side outer panel 40.
- the third closed cross-section portion 50 communicates with the first closed cross-section portion 42
- the fourth closed cross-section portion 52 communicates with the second closed cross-section portion 44.
- a front reinforcing member 54 as a second reinforcing member is disposed in the first closed cross section 42 of the upper portion 14A of the front pillar 14 described above.
- a rear reinforcing member 56 as a first reinforcing member is disposed in the fourth closed cross section 52 of the front portion 20 ⁇ / b> A of the roof side rail 20.
- Both the front side reinforcing member 54 and the rear side reinforcing member 56 are made of a urethane-based high-rigidity foam member.
- the front-side reinforcing member 54 and the rear-side reinforcing member 56 have a block shape elongated in the vehicle front-rear direction indicated by a two-dot chain line in FIGS. 3 to 6 before foaming.
- a clip 58 and a positioning pin 60 are integrally formed on one side surface (surface on the outer side in the vehicle width direction) of the front reinforcing member 54.
- the front reinforcing member 54 is moved to the front pillar outer panel.
- the main body 36C is attached to 36.
- the front reinforcing member 54 is fixed to each wall surface constituting the first closed cross-section portion 42, the first closed cross-section portion 42 becomes a solid member, and the rigidity of the upper portion 14A of the front pillar 14 is improved. is there.
- the front end portion of the rear reinforcing member 56 and the rear end portion of the front reinforcing member 54 are connected by a joint mechanism (not shown). Therefore, in the state after curing, the rear reinforcing member 56 is integrated with the front reinforcing member 54.
- the front side reinforcing member 54 is filled at least in a region S1 on the inner side in the vehicle width direction and on the vehicle lower side, which is a portion compressed by a collision load at the time of a frontal collision with respect to the centroid G1 of the first closed cross section 42. ing.
- the first closed cross-section portion 42 shown in FIG. 3 and the first closed cross-section portion 42 shown in FIG. 4 are slightly different in shape, so that the position of the centroid G1 is slightly shifted. It is attached.
- a clip 66 and a positioning pin are integrally formed on one side surface (the inner surface in the vehicle width direction) of the rear reinforcing member 56.
- the positioning pin By inserting the positioning pin into the positioning hole and inserting the clip 66 into the mounting hole 68 formed in the bottom of the main body 46C of the roof side rail outer panel 46 from the outside of the vehicle compartment, the rear reinforcing member 56 is attached to the roof side rail.
- the main body 46 ⁇ / b> C of the outer panel 46 is attached.
- the rear reinforcing member 56 is foamed and filled in the entire internal space of the fourth closed cross-section portion 52, and is cured in that state.
- the rear reinforcing member 56 is fixed to each wall surface constituting the fourth closed cross section 52, and the fourth closed cross section 52 becomes a substantially solid member, and the rigidity of the front portion 20A of the roof side rail 20 is improved. It is a structure to be.
- the rear side reinforcing member 56 is not provided on the third closed cross section 50 side on the roof side rail 20 side, but this is because the third closed cross section 50 has a small area. Even if the space for disposing the rear reinforcing member 56 having the mounting structure cannot be secured and the third closed cross-section portion 50 is filled with the rear reinforcing member, the area of the third closed cross-section portion 50 is as follows. This is because the effect of reinforcing the connection position X between the upper portion 14A of the front pillar 14 and the front portion 20A of the roof side rail 20 described later may be reduced.
- the rear reinforcing member 56 fills at least the region S2 on the inner side in the vehicle width direction and on the lower side of the vehicle, which is a portion compressed by the collision load at the time of frontal collision with respect to the centroid G2 of the fourth closed cross section 52.
- the fourth closed cross-section 52 shown in FIG. 5 and the fourth closed cross-section 52 shown in FIG. 6 are slightly different in shape, so that the position of the centroid G1 is slightly shifted, but the same reference symbol G2 is used. It is attached.
- the front reinforcing member 54 described above has a connection position X between the upper portion 14A and the front portion 20A of the roof side rail 20 from the root of the upper portion 14A of the front pillar 14 in a vehicle side view. It is set within the range indicated by A. Further, the rear side reinforcing member 56 is connected to the front part 20A of the roof side rail 20 from the position passing through the connecting position X between the upper part 14A of the front pillar 14 and the front part 20A of the roof side rail 20 to the rear side of the vehicle. A range indicated by B including the connection position Y with the roof header 30 is set.
- the range indicated by B is partially within the range indicated by A. They are shown again.
- the front roof header in the front portion 20A of the roof side rail 20 from the connection position X between the upper portion 14A of the front pillar 14 and the front portion 20A of the roof side rail 20 is achieved by the rear side reinforcing member 56 and the front side reinforcing member 54.
- a continuous reinforcing member disposition region Z (a hatched region in FIG. 1) is set in a range up to the connection position Y with 30.
- FIG. 7A schematically shows a state in which a proportional vehicle 80 to which the vehicle body structure according to the present embodiment is not applied collides with the barrier 84 in front.
- the input load (compression load) to the vehicle front portion 82 is very large, such as a minute lap collision or a slanted projection
- the lower part of the front pillar 86 is brought into contact with the barrier 84 after the vehicle. It is twisted inward in the width direction (see arrow P in FIG. 7A). Therefore, the portion from the front pillar 86 to the roof side rail 88 is bent and deformed so as to protrude outward in the vehicle width direction (see arrow Q in FIG. 7A).
- the rear reinforcing member 56 is disposed including the connection position Y with the front roof header 30 disposed along the upper end portion 16A of the windshield glass 16 on the roof side rail 20 in the vehicle side view.
- the rear side reinforcing member 56 is made of a urethane-based high-rigidity foam member, and the roof side rail so as to fill substantially the entire internal space of the hollow fourth closed cross-section portion 52 of the front portion 20A of the roof side rail 20. Since it is provided along the longitudinal direction of the front part 20A of 20, the rigidity of the connection position Y with the front roof header 30 in the front part 20A of the roof side rail 20 becomes high.
- the collision load (axial compression load) transmitted from the front pillar 14 to the roof side rail 20 can be transmitted not only to the roof side rail 20 but also to the front roof header 30. That is, the collision load transmitted from the vehicle front portion 10 to the skeleton of the cabin 12 at the time of a frontal collision is transmitted from the front pillar 14 on the collision side to the roof side rail 20 and further from the front roof header 30 to the side opposite to the collision side. Can be distributed and transmitted to the roof side rail 20. For this reason, it is possible to reduce a load that is input to a joint between members such as a connection portion (a portion indicated by the connection position X) between the front pillar 14 and the roof side rail 20.
- FIG. 8 shows an FS diagram when the vehicle body frame member from the upper part 14A of the front pillar 14 to the front part 20A of the roof side rail 20 is statically compressed.
- the solid line graph is an FS diagram in the case where the front side reinforcing member 54 and the rear side reinforcing member 56 are not provided, and the broken line graph includes the front side reinforcing member 54 and the rear side reinforcing member 56. It is a FS diagram in the case of.
- the cross-sectional holding force is enhanced as compared with the proportionality. Therefore, the peak load with respect to the initial stroke is increased by about 20%.
- the vehicle body structure according to the present embodiment it is possible to suppress or prevent the vehicle body frame portion of the hollow closed cross-sectional structure from the front pillar 14 to the roof side rail 20 from breaking during the frontal collision.
- the hollow closed cross-section portion of the upper portion of the front pillar 14 and the front portion 20A of the roof side rail 20 including the connection position X between the upper portion 14A of the front pillar 14 and the front portion 20A of the roof side rail 20 is included.
- a front-side reinforcing member 54 made of a urethane-based high-rigidity foam member is provided so as to fill at least a part of the interior space.
- the rear side reinforcing member 56 and the front side reinforcing member 54 continuously extend from the connection position X between the front pillar 14 and the roof side rail 20 to the connection position Y with the front roof header 30 in the roof side rail 20.
- the reinforcing member disposition area Z thus set is set.
- the region where the actual member area capable of transmitting the collision load has increased is continuously present without interruption in the vehicle front-rear direction.
- it is two front and back points (the upper part 14A of the front pillar 14 and the front part 20A of the roof side rail 20) which become the connecting position of members in the part from the front pillar 14 to the roof side rail 20.
- the reinforcing members (the front reinforcing member 54 and the rear reinforcing member 56) are continuously disposed across the connecting position X and the connecting position Y between the front portion 20A of the roof side rail 20 and the front roof header 30).
- the entire inner space of the first closed cross-section portion 42 is filled with the front reinforcing member 54.
- the present invention is not limited to this, and it is sufficient that at least the region S1 is filled with the front reinforcing member 54. .
- This concept is similarly applied to the rear reinforcing member 56 filled in the internal space of the fourth closed cross section 52.
- the rear side reinforcing member 56 is not necessarily filled in the entire internal space of the fourth closed cross-section portion 52, but is not limited thereto, and the rear side reinforcing member 56 is not provided in the entire internal space of the fourth closed cross-section portion 52.
- the member may be filled.
- a fixed window 102 formed in a substantially triangular shape in a side view is disposed on the upper portion of the front pillar 100. More precisely, the fixed window 102 has a trapezoidal shape that is arranged such that the upper bottom is on the front side of the vehicle and the lower bottom is on the rear side of the vehicle, and the lower bottom is longer than the upper bottom. ing.
- a rear support portion (A 'pillar) 104 is disposed along the vehicle vertical direction.
- the flat cross-sectional shape of the rear support portion 104 is substantially rectangular, and forms a skeleton portion having a closed cross-sectional structure.
- the upper end portion of the rear support portion 104 is connected to the roof side rail 106.
- a fulcrum 110 is newly formed between the front pillar 100 and the center pillar 108 (see FIG. 10).
- FIG. 10 schematically shows a state in which the vehicle 112 having the front pillar 100 collides with the barrier 84 in front.
- the portion from the upper part of the front pillar 100 to the roof side rail 106 is substantially Z-shaped in plan view. Bend. That is, the first bent portion 114 that is a bent portion on the vehicle front side is bent and deformed so as to be convex outward in the vehicle width direction and upward in the vehicle, as in the above-described embodiment.
- Deform. 11A shows a schematic diagram schematically illustrating the bending deformation mode of the above-described embodiment
- FIG. 11B shows a case where the front pillar 100 having the fixed window 102 is provided.
- a schematic diagram schematically depicting the bending deformation mode is shown.
- the above-described front side reinforcing member 54 and the rear reinforcing member 54 are rearranged.
- the arrangement position of the side reinforcing member 56 may be reversed in the vehicle width direction. That is, in FIG. 11B, the bending deformation region S1 on the first bending portion 114 side is the same as the bending deformation mode in FIG. 11A, and therefore, this region S1 is centered at the closed cross section of the portion.
- the reinforcing member is disposed at least on the vehicle width direction inner side.
- the phase is opposite to that of the bending deformation mode in FIG. 11A.
- a reinforcing member may be disposed at least on the outer side in the vehicle width direction.
- FIG. 12 shows a vehicle body side portion 152 including a front pillar 150 having the same structure as the front pillar 100 shown in FIG. 9 described above.
- an occupant can get on and off in a range surrounded by a center pillar 154, a front pillar 150, a rocker 156, and a roof side rail 158.
- a door opening 160 is formed.
- the rocker 156 is a beam-shaped vehicle body skeleton member having a closed cross-sectional structure extending along the vehicle longitudinal direction at both ends of the vehicle body floor in the vehicle width direction (not shown).
- the roof side rail 158 is a beam-shaped vehicle body skeleton member having a closed cross-sectional structure extending along the vehicle front-rear direction at both ends of the roof panel (not shown) in the vehicle width direction.
- the center pillar 154 is a columnar vehicle body frame member that is erected from an intermediate portion in the longitudinal direction of the rocker 156 and connected to the roof side rail 158.
- the front pillar 150 is a columnar vehicle body skeleton member that is erected from the front end portion of the rocker 156 and connected to the front end portion of the roof side rail 158. Further, the door opening 160 described above is opened and closed by the side door 26 (shown in FIG. 2 of the first embodiment described above). In addition, a door opening flange 162 configured by combining two or three flanges is continuously formed on the inner peripheral edge of the door opening 160.
- the door opening flange on the front pillar 150 side will be referred to as “front opening flange 162A” (as the front pillar side portion).
- a rubber opening weather strip (not shown) formed in a long shape is attached to the door opening flange 162.
- the front pillar 150 is provided with the fixed window 164. Therefore, in the following, a portion (A portion 166A) from the front end portion of the rocker 156 to the lower end portion of the fixed window 164 and a portion extending in the vehicle vertical direction along the front end portion of the fixed window 164 (B portion 166B). And a portion (C portion 166C) extending in the vehicle front-rear direction along the upper end portion of the fixed window 164 (along the extending direction of the roof side rail 158) is referred to as a “front pillar body portion 166”. A portion extending in the vehicle vertical direction along the rear end portion of 164 is referred to as an “auxiliary pillar portion 168”.
- the front opening flange 162A described above is provided at the end of the auxiliary pillar portion 168 on the vehicle rear side.
- a front pillar outer reinforcement 170 is disposed on the outer side in the vehicle width direction of the C portion 166C of the front pillar 150.
- a vertical cross-sectional shape of the front pillar outer reinforcement 170 (a cross-sectional shape when the front pillar outer reinforcement 170 is cut in a direction orthogonal to the longitudinal direction thereof) is substantially a hat shape.
- the front pillar outer reinforcement 170 is disposed such that the opening side is the vehicle width direction inner side (vehicle interior side), and the top wall portion 170A having a predetermined width and the width direction ends of the top wall portion 170A are respectively provided.
- the vehicle body side portion 152 (C portion 166C of the front pillar 150) has an upper end portion of the front opening flange 162A that is a front pillar side portion of the door opening flange 162.
- a long reinforcing member 172 as a third reinforcing member is disposed so as to straddle.
- the reinforcing member 172 is disposed so as to fit inside the front pillar outer reinforcement 170 in the vehicle width direction.
- the reinforcing member 172 is a press-formed product as an example.
- the reinforcing member 172 has a cross-sectional shape similar to that of the front pillar outer reinforcement 170, and includes a top wall portion 172A and a pair of side wall portions 172B and 172C.
- the extending direction of the pair of side wall portions 172B and 172C with respect to the top wall portion 172A is the same as the extending direction of the pair of side wall portions 170B and 170C with respect to the top wall portion 170A of the front pillar outer reinforcement 170.
- the top wall portion 172A of the reinforcing member 172 described above is integrally formed with a plurality of vertical beads 174 as rigidity tuning portions at predetermined intervals in the longitudinal direction of the member.
- the vertical bead 174 is formed in a concave groove shape by pressing the top wall portion 172A so as to be convex inward in the vehicle width direction (vehicle interior side).
- the vertical bead 174 is composed of three surfaces, a bottom surface and both end surfaces.
- a plurality of mounting surfaces (spotting surfaces) 176 that are convex outward in the vehicle width direction are integrally formed between the vertical beads 174 and the vertical beads 174.
- the mounting surface 176 is a portion that is relatively formed by forming a vertical bead 174 that protrudes inward in the vehicle width direction. Using these mounting surfaces 176, the reinforcing member 172 is joined to the top wall portion 170A of the front pillar outer reinforcement 170 by spot welding or the like. Further, another mounting surface 178 is integrally formed on the pair of side wall portions 172B and 172C, and the side wall portion 172B is joined to the side wall portion 170B by spot welding or the like using these mounting surfaces 178, and the side walls The part 172C is joined to the side wall part 170C by spot welding or the like.
- the vertical beads 174 are orthogonal to the two ridge lines 180 included in the top wall portion 170A of the front pillar outer reinforcement 170. It is arranged.
- the angle ⁇ formed by the bead center line of the vertical bead 174 and the ridge line portion 180 is set to 90 degrees.
- ⁇ 90 degrees, and any angle may be used as long as the reinforcement effect by the bead is obtained. Therefore, for example, if ⁇ is in the range of 85 to 95 degrees, there is no problem in performance.
- the term “orthogonal” described in claim 4 also has the same meaning, and if the effect of the invention can be obtained, not only strictly orthogonal but also a case of intersecting other than 90 degrees. Shall be included.
- the vertical bead 174 does not need to be plural, and may be one.
- the groove-shaped vertical bead 174 is used as the rigid tube portion.
- the present invention is not limited to this, and the rigidity may be tuned by changing the plate thickness, setting the rib, setting the opening, or the like.
- the plurality of (four in this embodiment) vertical beads 174 described above are formed on the front opening flange 162 ⁇ / b> A of the door opening flange 162 when viewed from the top wall portion 172 ⁇ / b> A side of the reinforcing member 172. It is arranged on the extension or on the front side of the vehicle.
- the lower 184 side of the front pillar 150 is bent and deformed, and the collision load F2 that could not be absorbed passes from the front opening flange 162A of the door opening flange 162 to the roof side rail 158 from the C portion 166C of the front pillar main body portion 166. Is pushed up to the vehicle upper side.
- a longitudinal bending moment M1 is generated at a location where the auxiliary pillar portion 168 and the roof side rail 158 intersect. If the reinforcing member 172 of the present embodiment is not provided, it is conceivable that the vertical bending moment M1 causes bending deformation at a portion from the C portion 166C of the front pillar main body 166 to the roof side rail 158.
- a long reinforcing member 172 is disposed on the inner side in the vehicle width direction of the front pillar outer reinforcement 170 so as to straddle the upper end portion of the front opening flange 162A of the door opening flange 162 in a side view of the vehicle. Therefore, a drag (bending moment in a direction that cancels M1) is obtained with respect to the above-described longitudinal bending moment M1. For this reason, the part from C part 166C (upper part) of the front pillar main-body part 166 of the front pillar 150 to the roof side rail 158 becomes difficult to break.
- the vehicle body frame portion having a hollow closed cross-section structure from the C portion 166C (upper portion) of the front pillar 150 to the front portion of the roof side rail 158 during a frontal collision. can do.
- the reinforcing member 172 includes a plurality of groove-shaped vertical beads 174 formed so as to be orthogonal to a plurality (two) of ridge line portions 180 of the front pillar outer reinforcement 170.
- the strength and rigidity along the longitudinal direction of the front pillar outer reinforcement 170 can be increased. For this reason, the site
- the vehicle body skeleton portion having a hollow closed cross-section structure from the C portion (upper portion) of the front pillar 150 to the front portion of the roof side rail 158 is broken halfway during a frontal collision. It can be suppressed or prevented. This effect is based on the effect of effectively suppressing or preventing the joint between the dash panel (not shown) that separates the power unit chamber from the cabin and the front pillar 150 from tearing.
- FIG. 17A is a schematic diagram in a plan view of a vehicle 190 that does not include the reinforcing member 172 of the present embodiment.
- the member spanned along the vehicle width direction along the upper end portion (rear end portion in this figure) of the windshield glass 192 is a front header panel 194, which is parallel to the rear side of the vehicle.
- the member spanned by is a roof center reinforcement 196.
- the reinforcing member 172 includes a plurality of vertical beads 174 formed so as to be orthogonal to a plurality (two) of ridge line portions 180 of the front pillar outer reinforcement 170.
- FIG. 18A shows a schematic view in a plan view of a vehicle 210 provided with the reinforcing member 172 of the present embodiment.
- the reinforcement member 172 draws similarly to the vehicle 190 shown by FIG. 17A. That is, the front header panel 214 is stretched along the vehicle width direction along the upper end portion (rear end portion in this figure) of the windshield glass 212, and the roof center reinforcement 216 is further provided on the vehicle rear side. It is stretched in parallel.
- the front pillar outer reinforcement 170 is strong against the vertical bending moment M1, but the vertical bead 174 configured as a concave bead is formed. Accordingly, the area of the pair of side wall portions 172B and 172C of the reinforcing member 172 decreases. For this reason, as shown in FIG. 18B, the vehicle 210 is subjected to a minute lap collision, and a lateral bending moment M2 is inputted so that a part from the upper part of the front pillar 150 to the roof side rail 158 is bent outward in the vehicle width direction. When this occurs, these vertical beads 174 function as weak parts and become the starting points.
- the upper portion of the front pillar 150 (C portion 166C of the front pillar main body portion 166) bends and deforms outward in the vehicle width direction on the vehicle front side relative to the front opening flange 162A of the door opening flange 162, and a part of the collision energy. Is absorbed.
- the front pillar 150 (point A) also moves backward only by a distance ⁇ 2 shorter than the distance ⁇ 1. Thereby, the load input amount to the roof center reinforcement 216 is remarkably reduced, and the bending deformation of the roof center reinforcement 216 and the deformation of the cabin are effectively suppressed or prevented.
- the bending deformation caused by the vertical bending moment M1 from the upper part of the front pillar 150 to the roof side rail 158 is effectively suppressed, and the lateral bending moment M2 is obtained.
- the resulting bending deformation can be promoted.
- the reinforcing member 172 has a reinforcing effect on the longitudinal bending moment M1 that vertically folds the plurality of ridge lines 180 of the front pillar outer reinforcement 170 in the vehicle vertical direction, and the plurality of ridge lines
- One or two or more stiffness tuning portions are provided so as to be a starting point for a lateral bending moment M2 that causes 180 to bend in the vehicle width direction.
- the front pillar outer reinforcement 170 sufficiently resists the vertical bending moment M1 acting at the time of a collision such as a minute lap collision and suppresses the bending deformation and simultaneously bends and deforms outward in the vehicle width direction. Absorbs part of the collision energy.
- the bending deformation caused by the longitudinal bending moment M1 can be effectively suppressed, and the bending deformation caused by the lateral bending moment M2 can be promoted.
- the rigidity tuning portion is constituted by the groove-shaped vertical bead 174, the rigidity can be easily changed depending on the width and depth of the bead. As a result, according to the present embodiment, the balance between the vertical folding and the horizontal folding can be easily tuned.
Abstract
Description
第3の態様の作用は、以下の通りである。
以下、図1~図8を用いて、本発明に係る車体構造の第1実施形態について説明する。なお、これらの図において適宜示される矢印FRは車両前方側を示しており、矢印UPは車両上方側を示しており、矢印INは車両幅方向内側を示している。
次に、図7A、図7Bを用いて、本実施形態の作用並びに効果について説明する。
以下、図12~図18を用いて、本発明に係る車体構造の第2実施形態について説明する。
Claims (5)
- ルーフの車両幅方向両側に車両前後方向に沿って配置されると共に中空閉断面構造の梁状車体骨格部材として構成されたルーフサイドレールと、
車両側面視で前記ルーフサイドレールの前部においてウインドシールドガラスの上端部に沿って配置されるフロントルーフヘッダとの接続位置を含んで配置され、当該ルーフサイドレールの前部における中空閉断面部の内部空間の少なくとも一部を埋めるように当該ルーフサイドレールの前部の長手方向に沿って設けられた樹脂製の第1補強部材と、
を有する車体構造。 - キャビンの前部両側に配置されると共に中空閉断面構造の柱状車体骨格部材として構成されたフロントピラーを備え、
さらに、前記フロントピラーの上部と前記ルーフサイドレールの前部との接続位置を含んで配置され、前記フロントピラーの上部及び前記ルーフサイドレールの前部における中空閉断面部の内部空間の少なくとも一部を埋めるように設けられた樹脂製の第2補強部材を有し、
前記第1補強部材と前記第2補強部材とによって、前記フロントピラーの上部と前記ルーフサイドレールの前部との接続位置から前記ルーフサイドレールの前部における前記フロントルーフヘッダとの接続位置に至る範囲に、連続した補強部材配設領域が設定されている、
請求項1記載の車体構造。 - フロントピラーの車両幅方向外側に配置されると共にルーフサイドレールの延長上に車両前後方向に沿って配置されたフロントピラーアウタリインフォースメントと、
前記フロントピラーの一部を構成し、前記フロントピラーアウタリインフォースメントの車両下方側に配置された固定窓の後端部に沿って車両上下方向に延在されると共に、車両後方側の端部にサイドドアのドア開口部の周縁部に沿って配置されたドアオープニングフランジのフロントピラー側部分が形成された補助ピラー部と、
前記ドアオープニングフランジのフロントピラー側部分を跨ぐように前記フロントピラーアウタリインフォースメントの車両幅方向内側に配置された長尺状の第3補強部材と、
を有する車体構造。 - 前記フロントピラーアウタリインフォースメントは、当該フロントアウタリインフォースメントの長手方向に沿って延びると共に車両幅方向に並ぶ複数の稜線部を有しており、
前記第3補強部材は、前記複数の稜線部を車両上下方向に縦折れさせる縦曲げモーメントに対しては補強効果を有し、前記複数の稜線部を車両幅方向に横折れさせる横曲げモーメントに対しては折れ起点となるように形成された一又は二以上の剛性チューニング部を備えている、
請求項3記載の車体構造。 - 前記剛性チューニング部は、前記複数の稜線部に直交するように形成された凹溝状の縦ビードである、
請求項4記載の車体構造。
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CN201380075429.0A CN105189259B (zh) | 2013-04-09 | 2013-09-27 | 车身结构 |
US14/782,525 US9815498B2 (en) | 2013-04-09 | 2013-09-27 | Vehicle body structure |
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CN105189259A (zh) | 2015-12-23 |
US20160046325A1 (en) | 2016-02-18 |
JPWO2014167742A1 (ja) | 2017-02-16 |
US9815498B2 (en) | 2017-11-14 |
JP6156488B2 (ja) | 2017-07-12 |
CN105189259B (zh) | 2017-07-04 |
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