WO2014034239A1 - 車体後部構造 - Google Patents
車体後部構造 Download PDFInfo
- Publication number
- WO2014034239A1 WO2014034239A1 PCT/JP2013/067333 JP2013067333W WO2014034239A1 WO 2014034239 A1 WO2014034239 A1 WO 2014034239A1 JP 2013067333 W JP2013067333 W JP 2013067333W WO 2014034239 A1 WO2014034239 A1 WO 2014034239A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rear panel
- vehicle body
- section
- ridge line
- flange
- 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
- B62D25/08—Front or rear portions
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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
- B62D25/02—Side panels
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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
-
- 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
- B62D25/08—Front or rear portions
- B62D25/087—Luggage compartments
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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
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2027—Floors or bottom sub-units in connection with other superstructure subunits the subunits being rear structures
Definitions
- the present invention relates to a vehicle body rear structure in which a rear outer wall is provided at a rear portion of a vehicle body, a rear garter portion is raised from the rear outer wall, and a corner panel is provided at an intersection of the rear outer wall and the rear garter portion.
- the rear outer wall is raised upward from the rear end of the rear floor panel that forms the floor of the vehicle body, and the rear portion of the raised rear wall forms the rear part of the luggage compartment (vehicle compartment).
- the rear outer wall is formed in a hollow closed cross section by a rear panel outer and a rear panel inner raised upward from the rear end of the rear floor panel (see, for example, Patent Document 1).
- Patent Document 1 is formed in a relatively large hollow closed section by the rear panel outer and the rear panel inner. For this reason, it is difficult to ensure the rigidity and strength of the rear outer wall, and when a load is input to the rear outer wall, a contrivance is required to suppress the rear outer wall from being crushed and deformed by the input load.
- a rear garter is connected to the outer end of the rear outer wall in the vehicle width direction, and the rear garter is connected to the roof side rail.
- An object of the present invention is to provide a vehicle body rear structure that can suppress an increase in the number of parts and can ensure rigidity and strength of a rear outer wall (vehicle rear part).
- the rear panel outer that rises upward from the rear end of the rear floor panel of the vehicle body and forms the rear outer wall that partitions the vehicle compartment from the outside, and the vehicle interior side surface of the rear panel outer are joined to each other
- a rear panel stiffener that forms a lower closed section extending in the vehicle width direction together with the rear panel outer at the lower edge of the rear opening of the vehicle body, and rises upward from the vehicle width direction outside of the rear panel outer
- a rear garter portion that forms a side closed cross-sectional portion that extends in the vertical direction at a side edge on the outer side in the vehicle width direction, and is joined to the rear panel outer and the rear garter portion to thereby form the lower portion at the concave corner of the rear opening.
- the rear panel stiffener includes: an upper surface extending from the opening flange portion of the rear opening portion toward the vehicle front side; and a drooping surface hanging downward via a first ridge line between the front end of the upper surface.
- the rear garter portion extends outward in the vehicle width direction via a second ridge line between a side surface extending forward of the vehicle body from the opening flange portion of the rear opening and the front end of the side surface.
- an L-shaped cross-section that includes an L-shaped cross-section that is continuous with the L-shaped cross-sections of the rear panel stiffener and the rear garter.
- An upper stiffener extension having a third ridge line continuous to the first ridge line and the second ridge line; and the corner closed cross-section portion together with the apa stiffener extension; And a rear panel side extensions having a bulkhead portion which partitions a part into multiple, rear body structure comprising a are provided.
- the bulkhead portion is arranged to be continuous with the upper surface of the rear panel stiffener.
- the rear panel outer is provided with a general surface portion disposed substantially vertically, and a bent portion provided on the outer side in the vehicle width direction of the general surface portion and bent toward the front of the vehicle body from the general surface portion.
- the upper stiffener extension includes a gun insertion hole for spot welding the rear panel outer and the rear panel side extension, and the rear panel side extension is joined across the general surface portion and the bent surface portion.
- the first flange is provided.
- the rear panel side extension includes a second flange that is sandwiched and joined between an outer flange at an upper end of the rear panel outer and an upper flange of the upper paster extension.
- the lateral step portion extending in the vehicle width direction of the rear panel side extension and the lateral bead extending in the vehicle width direction of the rear panel outer match.
- the vertical bead extending in the up-down direction of the upper paster extension and the vertical bead extending in the up-down direction of the rear panel side extension are matched.
- the rear panel outer includes a first outer ridge line extending in the vehicle width direction, and a second outer ridge line extending in the vehicle width direction below the first outer ridge line
- the rear panel side extension includes a projecting portion extending so as to project between the first outer ridge line and the second outer ridge line.
- the L-shaped cross-section portion of the rear panel stiffener and the L-shaped cross-section portion of the rear garter portion are connected to the L-shaped cross-section portion of the uppassifner extension so that the first ridgeline, the second ridgeline, and the second ridgeline Three ridge lines were made continuous. Therefore, the load transmission between the rear panel stiffener and the rear garter portion can be satisfactorily transmitted by the L-shaped cross-section portion (third ridge line) of the uppass stiffener extension. As a result, the load transmission efficiency between the rear panel stiffener and the rear garter portion can be increased, and the rigidity and strength of the rear outer wall (rear portion of the vehicle body) can be increased.
- the rear panel side extension is provided with a bulk head portion, and the corner closed cross section is divided into a plurality of portions by the bulk head portion. Therefore, the strength against crushing deformation of the corner closed cross section (that is, the rear outer wall) is improved, and the rigidity and strength of the rear outer wall (rear part of the vehicle body) can be increased. Furthermore, by partitioning the corner closed cross section into a plurality of parts with the bulkhead provided in the rear panel side extension, it is not necessary to provide the bulkhead separately, and the increase in the number of parts can be suppressed.
- the bulkhead portion is made continuous with the upper surface of the rear panel stiffener. Therefore, it is possible to satisfactorily transmit the load from the upper surface of the rear panel stiffener to the bulkhead portion. Thereby, since the load transmission efficiency from the rear panel stiffener to the rear panel side extension can be increased, the rigidity and strength of the rear outer wall (rear part of the vehicle body) can be further increased.
- the gun insertion hole is provided in the upper pastifna extension. Therefore, even when the corner closed cross section is formed by the upstiffener extension and the rear panel side extension, the spot welding electrode can be inserted into the corner closed cross section through the gun insertion hole. Thereby, the rear panel outer and the rear panel side extension can be spot-welded from the inside of the corner closed cross section.
- the first flange of the rear panel side extension was joined over the general surface portion and the bent surface portion of the rear panel outer.
- the general surface portion and the bent surface portion can be reinforced with the first flange, so that the rigidity and strength of the rear panel outer can be further increased.
- the second flange of the rear panel side extension is joined to the outer flange of the rear panel outer and the upper flange of the upper paste extension. Therefore, the second flange can be firmly supported by the outer flange and the upper flange. Thereby, since the joint strength of the second flange can be increased, the rigidity and strength of the rear panel side extension can be increased.
- the rigidity and strength of the rear outer wall can be further increased by matching the lateral step portion of the rear panel side extension with the lateral bead of the rear panel outer.
- the rigidity and strength of the rear outer wall can be further increased by matching the vertical bead of the uppassifner extension with the vertical bead of the rear panel side extension.
- the rear panel outer includes the first outer ridge line and the second outer ridge line, and the projecting portion is provided so as to stretch between the first outer ridge line and the second outer ridge line. Therefore, the first outer ridge line and the second outer ridge line can be reinforced by the projecting portion so as to prevent the first outer ridge line and the second outer ridge line from moving in a direction approaching each other. Thereby, the rigidity and intensity
- FIG. 2 is an enlarged view of part 2 of FIG. 1. It is a disassembled perspective view which shows the vehicle body rear part structure of FIG.
- FIG. 3 is an exploded perspective view showing a state in which an upper pastifener extension is disassembled from the vehicle body rear structure of FIG. 2.
- FIG. 5 is a sectional view taken along line 5-5 of FIG.
- FIG. 6 is a sectional view taken along line 6-6 of FIG.
- FIG. 7 is a sectional view taken along line 7-7 in FIG. It is a figure explaining the example which transmits a load between the rear-panel stiffener and rear-garter part of the vehicle body rear part structure which concern on this invention.
- the vehicle body rear structure 10 includes a left and right rear side frame 12 provided at a predetermined interval on the left and right sides of the vehicle body 11, and a floor portion of the vehicle body 11 provided between the left and right rear side frames 12.
- the left wheel house 15 and the right wheel house are each provided with a left rear pillar 16 and a right rear pillar at the top.
- the vehicle body rear structure 10 includes a rear panel outer 21 raised upward from a rear end 14a of the rear floor panel 14, a rear panel stiffener 23 joined to an inner surface (a vehicle interior side surface) 21a of the rear panel outer 21, and a rear panel outer 21.
- the rear panel outer 21 is raised upward from the rear end 14a of the rear floor panel 14 and joined to the rear ends 12a of the left and right rear side frames 12.
- the rear panel outer 21 is provided at the rear portion of the vehicle body 11 in the vehicle width direction to form the rear outer wall 18. Thereafter, the vehicle interior 31 is partitioned from the vehicle exterior (external) 32 by the outer wall 18.
- the rear panel outer 21 includes a general surface portion 34 raised from the rear end 14 a (see FIG. 1) of the rear floor panel 14 and left and right sides provided outside the general surface portion 34 in the vehicle width direction.
- the bent surface portion 42 is provided.
- the general surface portion 34 is formed in a substantially rectangular shape, and is provided substantially vertically from the rear end 14a of the rear floor panel 14 upward.
- the general surface portion 34 includes an outer L-shaped cross-sectional portion 35 having a substantially L-shaped cross section, an outer flange 36 provided at an upper end 35a of the outer L-shaped cross-sectional portion 35, and an outer L-shaped cross-sectional portion 35.
- An upper bulging portion 38 provided at the lower end of the upper bulging portion 38, and a lower bulging portion 39 provided below the upper bulging portion 38.
- the outer flange 36 is bent upwardly from the upper end 35a of the outer L-shaped cross section 35 toward the rear of the vehicle body.
- the outer flange 36 has a curved flange 36a at the outer end on the outer side in the vehicle width direction.
- the curved flange 36a is formed in a curved shape so as to rise outward in the vehicle width direction.
- the upper bulging portion 38 has a first outer ridge line 38a by being formed so as to bulge toward the passenger compartment 31 side.
- the first outer ridge line 38 a is a corner portion formed so as to bulge toward the vehicle compartment 31 at the bent portion of the upper bulge portion 38.
- the first outer ridge line 38a extends so as to extend substantially horizontally in the vehicle width direction.
- the lower bulging portion 39 has a second outer ridge line 39a by being formed so as to bulge toward the passenger compartment 31 side.
- the second outer ridge line 39 a is a corner portion formed so as to bulge toward the vehicle compartment 31 at the bent portion of the lower bulge portion 39.
- the second outer ridgeline 39a extends so as to extend substantially horizontally in the vehicle width direction, and has a ridgeline inclined portion 39b at the outer end.
- the ridge line inclined portion 39b is formed in an upward gradient from the middle of the second outer ridge line 39a toward the first outer ridge line 38a.
- the rear panel outer 21 (general surface portion 34) can be reinforced.
- the bent surface portion 42 is formed in a substantially rectangular shape, is provided outside the general surface portion 34 in the vehicle width direction, and is bent in an inclined manner from the outer end 34a of the general surface portion 34 toward the front of the vehicle body. Therefore, the general surface portion 34 and the bent surface portion 42 are bent in a substantially dog-leg cross section at the outer end 34a of the general surface portion 34 (see FIG. 7).
- the bent surface portion 42 includes upper and lower bent horizontal beads (horizontal beads) 43 and 44 at predetermined intervals in the vertical direction extending in the vehicle width direction.
- the upper and lower bent horizontal beads 43 and 44 are formed in a concave shape toward the rear of the vehicle body, and are formed substantially horizontally by extending in the vehicle width direction.
- the rear panel stiffener 23 is joined to the inner surface 21 a of the rear panel outer 21 at the upper part of the rear panel outer 21.
- the rear panel stiffener 23 includes an upper flange 47 joined to the outer flange 36, and an upper stiffener portion (upper surface) extending (projecting) from the upper flange 47 (opening flange portion 54) to the vehicle front side. 48, a vertical stiffener portion (hanging surface) 49 bent downward from the front end 48 a of the upper stiffener portion 48, and a lower flange 51 protruding downward from the lower end 49 a of the vertical stiffener portion 49.
- the rear panel stiffener 23 has a first ridge line 52 formed by a bent portion between the upper stiffener portion 48 and the vertical stiffener portion 49.
- the opening flange portion 54 is a flange formed around the rear opening portion 61 (see FIG. 2).
- the rear opening 61 is formed at the rear of the vehicle body 11 and is an opening for opening the passenger compartment 31.
- the rear opening 61 is formed to be openable and closable with a trunk lid or the like.
- the upper stiffener 48 is formed substantially horizontally.
- the upper stiffener portion 48 and the vertical stiffener portion 49 are bent into a substantially L-shaped cross section.
- the vertical stiffener portion 49 is suspended downward from the front end 48 a of the upper stiffener portion 48 via the first ridgeline 52.
- the first ridge line 52 is a corner that bulges toward the front of the vehicle body.
- the upper stiffener portion 48 and the vertical stiffener portion 49 are bent into a substantially L-shaped cross section, whereby a stiffener L-shaped cross-sectional portion (L-shaped cross-sectional portion) 56 is formed so as to bulge forward of the vehicle body. That is, the rear panel stiffener 23 includes a stiffener L-shaped cross section 56 having a first ridgeline 52.
- the outer flange 36 is joined in a state where the upper flange 47 is superimposed from above, and the lower flange 51 is joined to the upper bulging portion 38 of the general surface portion 34 from the front of the vehicle body.
- the rear panel stiffener 23 and the rear panel outer 21 constitute a lower closed section 62 of the rear opening 61.
- the lower closed cross-section portion 62 is formed by the upper stiffener portion 48, the vertical stiffener portion 49, and the outer L-shaped cross-section portion 35 so that the closed cross-section extends in the vehicle width direction, thereby increasing rigidity and strength.
- a lower edge 54 a of the rear opening 61 (opening flange 54) is formed by the lower closed section 62.
- the rear garter portion 25 is raised upward from an upper portion 21 b on the outer side in the vehicle width direction of the rear panel outer 21, and has an inner L-shaped cross section (L-shaped) facing the vehicle compartment 31 side.
- the rear flange 67 of the inner L-shaped cross section 65 and the rear flange 72 of the outer L-shaped cross section 71 are joined together, and the front flange 69 of the inner L-shaped cross section 65 and the front flange 73 of the outer L-shaped cross section 71. Are joined.
- the side closed cross-section portion 75 extending in the vertical direction is constituted by the inner L-shaped cross-section portion 65 and the outer L-shaped cross-section portion 71.
- the side closed section 75 By forming the side closed section 75 in a closed section extending in the vertical direction, the rigidity and strength of the rear garter section 25 are enhanced.
- the side edge 54b of the rear opening 61 (opening flange 54) of the vehicle body 11 is formed by the side closed section 75.
- the rear flange 72 of the outer L-shaped cross-section 71 has a lower curved flange 72a at the lower end. As shown in FIG. 3, the lower curved flange 72a is formed in a curved shape toward the inner side in the vehicle width direction. An end of the lower curved flange 72 a on the inner side in the vehicle width direction is connected (joined) to the curved flange 36 a of the outer flange 36.
- the inner L-shaped cross-section 65 includes a garter side surface (side surface) 66 that projects (extends) forward from the opening flange portion 54 of the rear opening 61 and the garter side surface. And a garter extending surface portion (extended surface) 68 that is bent from the front end 66a of the portion 66 toward the outside in the vehicle width direction.
- the garter extending surface portion 68 extends outward in the vehicle width direction via the second ridgeline 77 between the front end 66a of the garter side surface portion 66.
- the second ridgeline 77 is a corner that bulges toward the front of the vehicle body.
- the upper end 25 a of the rear garter portion 25 is connected to the left roof rail via the left rear pillar 16.
- the corner panel 27 includes an upper stiffener extension 28 that extends over the rear panel outer 21 and the rear garter portion 25, and a rear panel side extension 29 that is provided below the upper stiffener extension 28.
- the corner panel 27 is joined in a state of being stretched over the rear panel outer 21 and the rear garter portion 25, so that the rear panel outer 21 and the corner panel 27 constitute a corner closed cross-sectional portion 81.
- the corner closed cross-section portion 81 is formed in a cross-sectional closed cross-section shape (see FIG. 5), and the lower closed cross-section portion 62 and the side closed cross-section portion 75 are continuously curved in a concave corner portion 61a of the rear opening 61. It is a cross section.
- the upper stiffener extension 28 includes an upper flange 83 formed in a curved shape, an upper curved portion 84 formed in a curved shape by projecting forward from the upper flange 83 to the vehicle body, and a lower side from the front end of the upper curved portion 84. And a bent upper vertical portion 85.
- a curved third ridge line 86 is formed at the bent portion of the upper bending portion 84 and the upper vertical portion 85.
- the third ridge line 86 is a curved corner that bulges toward the front of the vehicle body.
- the upper flange 83 includes the second flange 96 of the rear panel side extension 29, the rear flange 72 (lower curved flange 72 a) of the outer L-shaped cross-section 71, and the inner L-shaped cross-section 65.
- the rear flange 67 (lower end 67a) is joined from above.
- the second flange 96 is joined from above to the outer flange 36 of the general surface portion 34 and the outer end 47a of the rear panel stiffener 23 (upper flange 47).
- the upper flange 47 is joined to the outer flange 36 from above.
- the upper curved portion 84 has an inner end 84a joined to the inner end 93a of the rear panel side extension 29 (bulk head portion 93) from above, and an outer end 84b joined to the lower end 66b of the garter side surface portion 66 from the inner side in the vehicle width direction.
- the upper vertical portion 85 is formed in a substantially triangular shape, and includes a plurality of upper vertical beads (vertical beads) 87 provided at the lower end 85a, and a gun insertion hole 88 provided near the outer end.
- the plurality of upper vertical beads 87 are formed in a concave shape toward the rear of the vehicle body and extend in the vertical direction (substantially vertical direction). By providing a plurality of upper vertical beads 87 at the lower end 85a of the upper vertical portion 85, the upper vertical portion 85 (upper stiffener extension 28) can be reinforced.
- the gun insertion hole 88 is a hole formed for spot welding the rear panel outer 21 and the rear panel side extension 29.
- a corner closed cross-sectional portion 81 is formed by the upper stiffener extension 28, the rear panel side extension 29, and the rear panel outer 21.
- a gun insertion hole 88 is formed in the upper vertical portion 85. Therefore, the electrode 91 for spot welding can be inserted through the gun insertion hole 88 into the corner closed cross section 81.
- the flange joint portion 108 (described later) of the rear panel outer 21 and the first flange 95 of the rear panel side extension 29 can be spot-welded from the inside of the corner closed cross-section portion 81.
- the upper vertical portion 85 has a lower end 85a joined to the upper end 92a of the rear panel side extension 29 (side vertical portion 92) from the front of the vehicle body. Further, the upper vertical portion 85 has the lower half of the outer end 85b joined to the bent surface portion 42 of the rear panel outer 21 from the front of the vehicle body (see also FIG. 7), and the upper half of the outer end 85b has an outer L-shape.
- the cross section 71 is joined to the lower portion 71a from the front of the vehicle body.
- the upper vertical portion 85 has an upper end 85c joined to the lower end 65a of the inner L-shaped cross section 65 (extension surface portion) from the front of the vehicle body.
- the upper curved portion 84 and the upper vertical portion 85 form an upper L-shaped cross section (L-shaped cross section) 89, and the upper L-shaped cross section 89 has a curved third ridgeline 86. That is, the upper stiffener extension 28 includes an upper L-shaped cross-section 89 having a third ridgeline 86.
- the upper L-shaped cross section 89 is provided so as to be continuous with the stiffener L-shaped cross section 56 and the inner L-shaped cross section 65. Further, the third ridge line 86 is formed so as to be continuous with the first ridge line 52 and the second ridge line 77 (see also FIG. 2).
- the load transmission between the rear panel stiffener 23 and the rear garter portion 25 can be satisfactorily transmitted by the upper L-shaped cross-section portion 89 (third ridgeline 86) of the upper stiffener extension 28.
- the load transmission efficiency between the rear panel stiffener 23 and the rear garter portion 25 can be increased, and the rigidity and strength of the rear outer wall 18 (rear portion of the vehicle body) can be increased.
- the rear panel side extension 29 includes a bulkhead portion 93 (see also FIG. 7) that forms a corner closed cross section 81 together with the upper stiffener extension 28 and the rear panel outer 21 and partitions the corner closed cross section 81 into a plurality of portions.
- the rear panel side extension 29 includes a side vertical portion 92 provided along the rear panel outer 21 (general surface portion 34, bent surface portion 42), and a substantially horizontal direction from the upper end 92a of the side vertical portion 92 toward the rear of the vehicle body. And a bulkhead portion 93 that is bent into a bent shape.
- the rear panel side extension 29 is a side vertical surface portion 94 bent upward from the rear end 93b (see also FIG. 5) of the bulkhead portion 93, and the outer end of the side vertical surface portion 94 is directed outward in the vehicle width direction. And a second flange 96 bent toward the rear of the vehicle body from the upper end of the side vertical surface 94.
- the mounting bracket 112 is joined to the lower part of the rear panel side extension 29 from the front of the vehicle body. The mounting bracket 112 is attached to the rear end of the left rear side frame 12.
- the side vertical portion 92 is formed in a substantially pentagonal shape, and is provided on the upper end 92a and extends in the vehicle width direction.
- the side lateral step portion (lateral step portion) 98 (see also FIG. 5) and a plurality of side upper step portions 92a are provided.
- a side vertical bead (vertical bead) 99 and a projecting portion 101 provided in an inclined manner at an inner end 92b on the inner side in the vehicle width direction are provided.
- the side lateral step portion 98 is formed substantially horizontally so as to extend in the vehicle width direction, and is disposed on the same line with respect to the upper bending lateral bead 43 of the bending surface portion 42. That is, the side lateral step portion 98 and the upper bent lateral bead 43 are provided in a state where they are aligned in a substantially horizontal direction.
- the rigidity and strength of the rear outer wall 18 can be further increased by the side lateral stepped portion 98 and the upper bent lateral bead 43.
- the plurality of side vertical beads 99 are formed so as to extend in the vertical direction (substantially vertical direction), respectively, and are further formed in a concave shape toward the rear of the vehicle body so as to be engageable with the plurality of upper vertical beads 87. It is.
- the side vertical beads 99 and the upper vertical beads 87 are arranged on the same line by overlapping the side vertical beads 99 on the upper vertical beads 87 from the front of the vehicle body. That is, the plurality of side vertical beads 99 and the plurality of upper vertical beads 87 are provided so as to be matched in the substantially vertical direction.
- the rigidity and strength of the rear outer wall 18 can be further increased by the plurality of side vertical beads 99 and the plurality of upper vertical beads 87. .
- the projecting portion 101 has an upper end 101 a joined to the upper bulging portion 38 of the rear panel outer 21 (general surface portion 34) via the lower flange 51, and a lower end to the lower bulging portion 39. 101b is joined. That is, the projecting portion 101 is stretched over the upper bulging portion 38 (first outer ridge line 38a) and the lower bulging portion 39 (second outer ridge line 39a).
- the projecting portion 101 extends so as to stretch between the first outer ridge line 38a and the second outer ridge line 39a. Therefore, the first outer ridge line 38a and the second outer ridge line 39a can be reinforced by the projecting portion 101 so as to prevent the first outer ridge line 38a and the second outer ridge line 39a from moving in a direction approaching each other. Thereby, the rigidity and strength of the rear outer wall 18 (rear part of the vehicle body) can be further increased by the projecting portion 101.
- the bulkhead portion 93 is disposed (provided) substantially horizontally so as to be continuous with the upper stiffener portion 48 of the rear panel stiffener 23.
- the corner closed cross-section portion 81 can be partitioned into upper and lower (a plurality of) closed cross-sections 105 and 106 by the bulkhead portion 93.
- the bulkhead portion 93 is provided integrally with the rear panel side extension 29. As described above, the bulkhead portion 93 provided in the rear panel side extension 29 divides the corner closed cross-section portion 81 into upper and lower portions (plurality), so that it is not necessary to separately provide the bulkhead portion 93 and suppress an increase in the number of parts. be able to.
- the first flange 95 projects from the outer end of the side vertical surface portion 94 toward the outer side in the vehicle width direction.
- the first flange 95 is connected to the flange joint 108 formed by a portion of the upper end 34b of the general surface portion 34 near the outer end 34a and a portion of the upper end 42b of the bent surface portion 42 near the outer end 34a from the front of the vehicle body. It is joined.
- the first flange 95 is joined across the upper end 34 b of the general surface portion 34 and the upper end 42 b of the bent surface portion 42.
- a gun insertion hole 88 is formed in the upper stiffener extension 28 (upper vertical portion 85). Therefore, the electrode 91 for spot welding can be inserted through the gun insertion hole 88 into the inside of the corner closed cross-section 81 formed by the uppass stiffener extension 28, the rear panel side extension 29 and the rear panel outer 21. As a result, the first flange 95 can be spot welded to the flange joint portion 108 from the inside of the corner closed cross section 81.
- the second flange 96 is bent from the upper end of the side vertical surface portion 94 toward the rear of the vehicle body.
- the second flange 96 is joined with being sandwiched between the outer flange 36 of the rear panel outer 21 and the upper flange 83 of the upper paste extension 28. Therefore, the second flange 96 can be firmly supported by the outer flange 36 and the upper flange 83. Thereby, since the joint strength of the second flange 96 can be increased, the rigidity and strength of the rear panel side extension 29 can be increased.
- the outer end 92c of the side vertical portion 92 is joined to the bent surface portion 42 of the rear panel outer 21 from the front of the vehicle body.
- the upper L-shaped cross-sectional portion 89 is provided so as to be continuous with the stiffener L-shaped cross-sectional portion 56 and the inner L-shaped cross-sectional portion 65. Further, the third ridge line 86 is formed so as to be continuous with the first ridge line 52 and the second ridge line 77.
- the load F1 input to the rear panel stiffener 23 can be transmitted well to the rear garter portion 25 through the first ridgeline 52, the third ridgeline 86, and the second ridgeline 77 as shown by arrows.
- the load F2 input to the rear garter portion 25 can be transmitted to the rear panel stiffener 23 through the second ridgeline 77, the third ridgeline 86, and the first ridgeline 52 as indicated by arrows.
- the load transmission efficiency between the rear panel stiffener 23 and the rear garter portion 25 can be increased, and the rigidity and strength of the rear outer wall 18 (rear portion of the vehicle body) can be increased.
- FIG. 9 shows a state in which the upper stiffener extension 28 is removed for easy understanding of load transmission.
- the bulkhead portion 93 of the rear panel side extension 29 is continued substantially horizontally to the upper stiffener portion 48 of the rear panel stiffener 23. Therefore, the load F3 input to the upper stiffener portion 48 can be transmitted to the bulkhead portion 93 as shown by an arrow. Thereby, the load transmission efficiency from the rear panel stiffener 23 to the rear panel side extension 29 can be increased, and the rigidity and strength of the rear outer wall 18 (rear part of the vehicle body) can be increased. Similarly, the load input to the bulkhead portion 93 can be transmitted to the upper stiffener portion 48 satisfactorily.
- the general surface portion 34 of the rear panel outer 21 is bent into a substantially square shape at a bent portion 34c. For this reason, it is conceivable that the general surface portion 34 bends in the direction of arrow A starting from the bent portion 34c.
- the projecting portion 101 is stretched over the upper bulging portion 38 (first outer ridge line 38a) and the lower bulging portion 39 (second outer ridge line 39a). Therefore, when the load F4 that bends in the direction of the arrow A from the bent portion 34c acts on the general surface portion 34, the first outer ridge line 38a and the second outer ridge line 39a are supported to be stretched by the projecting portion 101. it can. Thereby, since it can prevent that the general surface part 34 bends in the arrow A direction, the rigidity and intensity
- the first flange 95 of the rear panel side extension 29 is welded to the flange joint portion 108 of the rear panel outer 21, so that the corner closed cross section 81 is closed by the bulkhead section 93. Partitioned into 105 and 106. Thereby, even when the load F5 is input from the rear of the vehicle body to the corner closed cross section 81 (that is, the rear outer wall 18), the rear outer wall 18 (rear portion of the vehicle body) can be prevented from being crushed and deformed.
- the vehicle body rear structure according to the present invention is not limited to the above-described embodiments, and can be changed or improved as appropriate.
- the vehicle body rear structure the vehicle body, the rear outer wall, the rear panel outer, the rear panel stiffener, the rear garter, the corner panel, the outer L-shaped cross section, the upper bent horizontal bead, the stiffener L-shaped cross section, and the rear opening shown in the above embodiment.
- the shapes and configurations of the side vertical beads and the projecting portions are not limited to those illustrated, and can be changed as appropriate.
- the rear body structure of the present invention is suitable for application to an automobile in which a rear garter portion is erected from the rear outer wall of the rear portion of the vehicle body and a corner panel is provided at the intersection of the rear outer wall and the rear garter portion.
- SYMBOLS 10 Vehicle body rear part structure, 11 ... Vehicle body, 14 ... Rear floor panel, 14a ... Rear end of rear floor panel, 18 ... Rear outer wall, 21 ... Rear panel outer, 21a ... Inner surface (side surface of vehicle interior), 23 ... Rear panel stiffener, 25 ... Rear garter portion, 27 ... Corner panel, 28 ... Upper stiffener extension, 29 ... Rear panel side extension, 31 ... Vehicle compartment, 32 ... Outside (external), 34 ... General surface portion, 35 ... Outer L-shaped cross section, 35a ... Upper end of outer L-shaped cross-section, 36 ... outer flange, 38a ... first outer ridge line, 39a ...
- second outer ridge line 42 ... left and right bent surface portions (bent surface portion), 43 ... upper bent horizontal beads (horizontal beads), 48 ... Upper stiffener portion (upper surface), 48a ... Front end of upper stiffener portion, 49 ... Vertical stiffener portion (lower surface), 5 ... 1st ridge, 54 ... Opening flange part, 54a ... Lower edge of opening flange part, 54b ... Side edge of opening flange part, 56 ... Stiffener L-shaped cross section (L-shaped cross section), 61 ... Rear opening , 62 ... lower closed cross-section, 65 ... inner L-shaped cross-section (L-shaped cross-section), 66 ... garter side surface (side), 66a ...
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Abstract
Description
よって、リヤパネルスティフナおよびリヤガータ部間の荷重伝達をアッパスティフナエクステンションのL字状断面部(第3稜線)で良好に伝えることができる。これにより、リヤパネルスティフナおよびリヤガータ部間の荷重伝達効率を高め、後外壁(車体後部)の剛性・強度を高めることができる。
さらに、リヤパネルサイドエクステンションに備えたバルクヘッド部で角部閉断面部を複数に仕切ることにより、バルクヘッド部を個別に設ける必要がなく、部品点数の増加を抑えることができる。
これにより、リヤパネルスティフナからリヤパネルサイドエクステンションへの荷重伝達効率を高めることができるので、後外壁(車体後部)の剛性・強度をさらに高めることができる。
これにより、リヤパネルアウタおよびリヤパネルサイドエクステンションを角部閉断面部の内側からスポット溶接することができる。
よって、第2フランジをアウタフランジおよびアッパフランジで強固に支持できる。これにより、第2フランジの接合強度を高めることができるので、リヤパネルサイドエクステンションの剛性・強度を高めることができる。
よって、第1アウタ稜線および第2アウタ稜線が互いに近づく方向に移動することを阻止するように、第1アウタ稜線および第2アウタ稜線を突張部で補強できる。これにより、第1アウタ稜線および第2アウタ稜線間に突張部を備えることにより、後外壁(車体後部)の剛性・強度をさらに高めることができる。
具体的には、リヤパネルサイドエクステンション29は、リヤパネルアウタ21(一般面部34、屈曲面部42)に沿って設けられたサイド鉛直部92と、サイド鉛直部92の上端92aから車体後方に向けて略水平に折り曲げられたバルクヘッド部93とを有する。
ここで、リヤパネルサイドエクステンション29の下部に取付ブラケット112が車体前方から接合されている。取付ブラケット112は、左リヤサイドフレーム12の後端に取り付けられている。
サイド横段差部98および上屈曲横ビード43を合致させることにより、サイド横段差部98および上屈曲横ビード43で後外壁18(車体後部)の剛性・強度をさらに高めることができる。
サイド縦ビード99がアッパ縦ビード87に車体前方から重ね合わされることにより、サイド縦ビード99およびアッパ縦ビード87が同一線上に配置されている。すなわち、複数のサイド縦ビード99および複数のアッパ縦ビード87が略鉛直方向において合致した状態に設けられている。
複数のサイド縦ビード99および複数のアッパ縦ビード87を合致させることにより、複数のサイド縦ビード99および複数のアッパ縦ビード87で後外壁18(車体後部)の剛性・強度をさらに高めることができる。
すなわち、突張部101は、上膨出部38(第1アウタ稜線38a)および下膨出部39(第2アウタ稜線39a)に掛け渡されている。
よって、第1アウタ稜線38aおよび第2アウタ稜線39aが互いに近づく方向に移動することを阻止するように、第1アウタ稜線38aおよび第2アウタ稜線39aを突張部101で補強できる。これにより、後外壁18(車体後部)の剛性・強度を突張部101でさらに高めることができる。
バルクヘッド部93を上スティフナ部48に連続するように略水平に設けることにより、角部閉断面部81をバルクヘッド部93で上下(複数)の閉断面105,106に仕切ることができる。
これにより、角部閉断面部81(すなわち、後外壁18)の潰れ変形に対する耐力が向上し、後外壁18(車体後部)の剛性・強度を高めることができる。
これにより、リヤパネルスティフナ23からリヤパネルサイドエクステンション29への荷重伝達効率を高めることができるので、後外壁18(車体後部)の剛性・強度をさらに高めることができる。
この第1フランジ95は、一般面部34の上端34bのうち外側端34a近傍の部位と、屈曲面部42の上端42bのうち外側端34a寄りの部位とで形成されるフランジ接合部108に車体前方から接合されている。
換言すれば、一般面部34の上端34bおよび屈曲面部42の上端42bに亘って第1フランジ95が接合されている。これにより、一般面部34および屈曲面部42を第1フランジ95で補強できるので、リヤパネルアウタ21の剛性・強度をさらに高めることができる。
これにより、フランジ接合部108に第1フランジ95を角部閉断面部81の内側からスポット溶接することができる。
この第2フランジ96は、リヤパネルアウタ21のアウタフランジ36と、アッパスティフナエクステンション28のアッパフランジ83に挟まれた状態で接合されている。
よって、第2フランジ96をアウタフランジ36およびアッパフランジ83で強固に支持できる。これにより、第2フランジ96の接合強度を高めることができるので、リヤパネルサイドエクステンション29の剛性・強度を高めることができる。
なお、サイド鉛直部92の外端92cがリヤパネルアウタ21の屈曲面部42に車体前方から接合されている。
図8に示すように、アッパL字状断面部89がスティフナL字状断面部56および内側L字状断面部65に連続するように設けられている。さらに、第3稜線86が第1稜線52および第2稜線77に連続するように形成されている。
一方、リヤガータ部25に入力した荷重F2を、第2稜線77、第3稜線86および第1稜線52を経てリヤパネルスティフナ23に矢印の如く良好に伝えることができる。
これにより、リヤパネルスティフナ23およびリヤガータ部25間の荷重伝達効率を高め、後外壁18(車体後部)の剛性・強度を高めることができる。
なお、図9においては荷重伝達の理解を容易にするためにアッパスティフナエクステンション28を除去した状態を示す。
よって、上スティフナ部48に入力した荷重F3をバルクヘッド部93に矢印の如く良好に伝達することができる。これにより、リヤパネルスティフナ23からリヤパネルサイドエクステンション29への荷重伝達効率を高めて後外壁18(車体後部)の剛性・強度を高めることができる。
同様に、バルクヘッド部93に入力した荷重を上スティフナ部48に良好に伝達することができる。
図10に示すように、リヤパネルアウタ21の一般面部34は折曲部34cで略く字状に折り曲げられている。このため、一般面部34が折曲部34cを起点にして矢印A方向に折れ曲がることが考えられる。
よって、一般面部34に折曲部34cを起点にして矢印A方向に折れ曲がる荷重F4が作用した場合に、第1アウタ稜線38aおよび第2アウタ稜線39aを突張部101で突っ張るように支えることができる。
これにより、一般面部34が矢印A方向に折れ曲がることを防ぐことができるので、後外壁18(車体後部)の剛性・強度を高めることができる。
図11に示すように、リヤパネルサイドエクステンション29の第1フランジ95をリヤパネルアウタ21のフランジ接合部108に溶接することにより、角部閉断面部81がバルクヘッド部93で上下(複数)の閉断面105,106に仕切られる。
これにより、角部閉断面部81(すなわち、後外壁18)に車体後方から荷重F5が入力した場合でも、後外壁18(車体後部)が潰れ変形することを防止できる。
例えば、前記実施例で示した車体後部構造、車体、後外壁、リヤパネルアウタ、リヤパネルスティフナ、リヤガータ部、コーナーパネル、アウタL字状断面部、上屈曲横ビード、スティフナL字状断面部、後部開口部、下部閉断面部、内側L字状断面部、側部閉断面部、角部閉断面部、アッパ縦ビード、ガン挿通穴、アッパL字状断面部、バルクヘッド部、サイド横段差部、サイド縦ビードおよび突張部などの形状や構成は例示したものに限定するものではなく適宜変更が可能である。
Claims (7)
- 車体のリヤフロアパネルの後端から上方に立ち上がり、外部から車室を仕切る後外壁を形成するリヤパネルアウタと、
該リヤパネルアウタの車室内側面に接合されることにより、前記車体の後部開口部の下縁において前記リヤパネルアウタとともに車幅方向に延びる下部閉断面部を構成するリヤパネルスティフナと、
前記リヤパネルアウタの車幅方向外側から上方に立ち上がり、前記後部開口部のうち車幅方向外側の側縁で上下方向に延びる側部閉断面部を構成するリヤガータ部と、
前記リヤパネルアウタおよび前記リヤガータ部に接合されることにより、前記後部開口部の凹状の角部において前記下部閉断面部および前記側部閉断面部を連続する角部閉断面部を構成するコーナーパネルと、を備えた車体後部構造であって、
前記リヤパネルスティフナは、
前記後部開口部の開口フランジ部から車両前方側に延びる上面と、
該上面の前端との間に第1稜線を介して下方に垂下する垂下面と、からなるL字状断面部を含み、
前記リヤガータ部は、
前記後部開口部の前記開口フランジ部から車体前方に延びる側面と、該側面の前端との間に第2稜線を介して車幅方向外側に延びる延出面と、からなるL字状断面部を含み、
前記コーナーパネルは、
前記リヤパネルスティフナおよび前記リヤガータ部の各L字状断面部に連続するL字状断面部を備え、該L字状断面部に前記第1稜線および前記第2稜線に連続する第3稜線を有するアッパスティフナエクステンションと、
該アッパスティフナエクステンションとともに前記角部閉断面部を構成し、前記角部閉断面部を複数に仕切るバルクヘッド部を備えたリヤパネルサイドエクステンションと、
を備えることを特徴とする車体後部構造。 - 前記バルクヘッド部は、
前記リヤパネルスティフナの上面に連続するように配置される、請求項1記載の車体後部構造。 - 前記リヤパネルアウタは、
略鉛直に配置された一般面部と、該一般面部の車幅方向外側に設けられ、前記一般面部から車体前方へ向けて屈曲した屈曲面部と、を備え、
前記アッパスティフナエクステンションは、
前記リヤパネルアウタと前記リヤパネルサイドエクステンションとをスポット溶接するためのガン挿通穴を備え、
前記リヤパネルサイドエクステンションは、
前記一般面部および前記屈曲面部に亘って接合される第1フランジを備える、請求項1または請求項2記載の車体後部構造。 - 前記リヤパネルサイドエクステンションは、
前記リヤパネルアウタの上端のアウタフランジと、前記アッパスティフナエクステンションのアッパフランジとに挟まれて接合される第2フランジを備える、請求項1~3のいずれか1項記載の車体後部構造。 - 前記リヤパネルサイドエクステンションの車幅方向に延びる横段差部と、前記リヤパネルアウタの車幅方向に延びる横ビードとが、合致している、請求項1~4のいずれか1記載の車体後部構造。
- 前記アッパスティフナエクステンションの上下方向に延びる縦ビードと、前記リヤパネルサイドエクステンションの上下方向に延びる縦ビードとが、合致している、請求項1~5のいずれか1記載の車体後部構造。
- 前記リヤパネルアウタは、
車幅方向に延びる第1アウタ稜線と、該第1アウタ稜線の下方で車幅方向に延びる第2アウタ稜線と、を備え、
前記リヤパネルサイドエクステンションは、
前記第1アウタ稜線および前記第2アウタ稜線の間で突っ張るように延びている突張部を備える、請求項1~6のいずれか1記載の車体後部構造。
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US14/421,514 US9302711B2 (en) | 2012-08-31 | 2013-06-25 | Vehicle body rear structure |
JP2014532851A JP5941151B2 (ja) | 2012-08-31 | 2013-06-25 | 車体後部構造 |
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JP6136983B2 (ja) * | 2014-02-27 | 2017-05-31 | マツダ株式会社 | 車両の後部構造 |
US9403492B1 (en) * | 2015-03-27 | 2016-08-02 | Nissan North America, Inc. | Vehicle body structure |
BR112017026152A2 (ja) | 2015-06-08 | 2018-08-14 | Honda Motor Co., Ltd. | Body rear structure |
US9738318B2 (en) * | 2016-01-08 | 2017-08-22 | Honda Motor Co., Ltd. | Vehicle frame assembly |
DE102016001241A1 (de) * | 2016-02-04 | 2017-08-10 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Strukturknoten für eine Kraftfahrzeugkarosserie |
DE102016002574A1 (de) * | 2016-03-03 | 2017-09-07 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Kraftfahrzeugkarosserie |
US9969435B2 (en) * | 2016-09-02 | 2018-05-15 | Toyota Motor Engineering & Manufacturing North America, Inc. | Pillar assembly to floor cross support member reinforcement gussets for vehicle side structures |
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CN104583060A (zh) | 2015-04-29 |
JP5941151B2 (ja) | 2016-06-29 |
US9302711B2 (en) | 2016-04-05 |
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