JP5471984B2 - Door opening structure - Google Patents

Description

  The present invention relates to a door opening structure.

  In Patent Document 1, a hinge pillar reinforcement is provided in the hinge pillar, and a center pillar reinforcement is provided in the center pillar. These are the front end and rear end of the side sill reinforcement provided in the side sill. An automobile side body structure joined to a part is disclosed.

JP-A-5-39063 JP-A-7-112670 Japanese Utility Model Publication No. 6-61660

  However, in the example described in Patent Document 1, although the rigidity between the pillar and the side sill can be improved, there is room for improvement with respect to suppressing the deformation of the corner portion formed in the peripheral portion of the door opening.

  This invention is made | formed in view of the said subject, Comprising: It aims at providing the door opening structure which can suppress a deformation | transformation of the corner part formed in the peripheral part of the door opening.

In order to solve the above problems, the door opening structure according to claim 1 is configured to include a pair of panels forming a closed cross section, and a joint portion on one end side of the pair of panels is formed in the vehicle. The frame member that forms the peripheral part of the door opening and the longitudinal direction of the corner part formed in the peripheral part, and the end part on the door opening side are joined to the joint part. A reinforcing member having a main body part and a reinforcing part that forms a hollow part in the closed cross-section by folding back an end part of the main body part opposite to the end part on the door opening side in the vehicle width direction ; It has.

  According to this door opening structure, the corner part formed in the peripheral part of the door opening is reinforced by the reinforcing member having a hollow part in the closed cross section of the skeleton member. Therefore, for example, even when stress is concentrated on the corner portion due to an input from the suspension or the like to the vehicle body during traveling of the vehicle, the deformation of the corner portion can be suppressed.

  The door opening structure according to claim 2 is the door opening structure according to claim 1, wherein the hollow portion is provided outside the corner portion and is curved so as to protrude toward the corner portion. It is set as the formed structure.

  According to this door opening structure, the hollow portion is provided outside the corner portion and is curved so as to be convex toward the corner portion side. Therefore, even if a moment acts in the direction in which the corner portion is deformed (bent) with respect to the corner portion by the input, the moment can be reduced (cancelled) by the hollow portion. Thereby, a deformation | transformation of a corner part can be suppressed further.

  The door opening structure according to claim 3 is the door opening structure according to claim 1 or 2, wherein an end of the main body portion opposite to the door opening side is the other end side of the pair of panels. Or a skeleton reinforcing member provided on the skeleton member.

  According to this door opening structure, the end of the main body on the side opposite to the door opening side is joined to the joint on the other end of the pair of panels or the skeleton reinforcing member provided on the skeleton member. Thereby, since the rigidity of a reinforcement member can be improved, a deformation | transformation of a corner part can be suppressed further.

  The door opening structure according to claim 4 is the door opening structure according to any one of claims 1 to 3, wherein the hollow portion has a bead along a longitudinal direction of the corner portion. ing.

  According to this door opening structure, the hollow portion has a bead along the longitudinal direction of the corner portion. Therefore, since the ridge line is increased by this bead, the bending rigidity of the hollow portion can be improved, so that the deformation of the corner portion can be further suppressed.

  As described above in detail, according to the present invention, it is possible to suppress the deformation of the corner portion formed at the peripheral edge portion of the door opening.

It is the side view which looked at the left rear side part in the vehicle body to which the door opening structure which concerns on 1st embodiment of this invention was applied from the vehicle width direction outer side. FIG. 2 is an enlarged sectional view taken along line F2-F2 of FIG. FIG. 3 is a perspective view of a reinforcing member shown in FIG. 2. It is F4-F4 line expanded sectional view of FIG. It is a perspective view which shows the 1st modification of the reinforcement member shown by FIG. It is sectional drawing corresponding to FIG. 2 which shows the 2nd modification of the reinforcement member shown by FIG. It is a perspective view of the reinforcement member shown by FIG. It is a perspective view which shows the 3rd modification of the reinforcement member shown by FIG. It is a perspective view which shows the 4th modification of the reinforcement member shown by FIG. It is sectional drawing corresponding to FIG. 4 which shows the modification of the reinforcement member shown by FIG. It is a perspective view of the reinforcement member shown by FIG. It is a side view which shows the structure of the door opening structure which concerns on 2nd embodiment of this invention. It is a perspective view of the reinforcement member shown by FIG. It is F14-F14 line expanded sectional view of FIG. (A)-(C) are the schematic diagrams for demonstrating the moment which acts on the hollow part in the door opening structure which concerns on 2nd embodiment of this invention.

[First embodiment]
First, a first embodiment of the present invention will be described.

  In addition, arrow UP, arrow FR, and arrow LH which are shown in each figure have each shown the vehicle up-down direction upper side, the vehicle front-back direction front side, and the vehicle width direction outer side (left side).

  As shown in FIG. 1, the vehicle body 12 to which the door opening structure 10 according to the first embodiment of the present invention is applied includes a skeleton member 14 and a plurality of reinforcing members 16, 18, and 20. The skeleton member 14 constitutes a side portion of the vehicle body 12, and has an outer panel 22 and an inner panel 24 corresponding to a pair of panels in the present invention, as shown in FIG.

  The outer panel 22 is provided on the vehicle outer side with respect to the inner panel 24. A door opening 26 (see also FIG. 1) that is opened and closed by a side door (not shown) is formed in a side portion of the vehicle body 12 constituted by the outer panel 22 and the inner panel 24. Further, flanges 22A and 24A (door opening flanges) extending toward the door opening 26 are formed on one end sides of the outer panel 22 and the inner panel 24, respectively.

  The pair of flanges 22A and 24A are overlapped via an end portion 40A on the door opening 26 side in a main body portion 40 of the reinforcing member 16 described later, and are joined together with the end portion 40A by, for example, a welded portion 28 by spot welding. Yes. The joint portion 30 constituted by the pair of flanges 22 </ b> A and 24 </ b> A constitutes a peripheral edge portion 26 </ b> A of the door opening 26.

  On the other hand, flanges 22B and 24B are formed on the other end sides of the outer panel 22 and the inner panel 24, respectively, and the pair of flanges 22B and 24B are overlapped with each other. Of the joint portion 32 constituted by the pair of flanges 22B and 24B, a portion positioned on the vehicle upper side is overlapped with an end portion 34A on the vehicle width direction outer side of the roof panel 34 from the vehicle lower side. And the site | part located in the vehicle upper side among this junction part 32 is joined with 34 A of edge parts by the welding part 36 by spot welding, for example. Further, the outer panel 22 and the inner panel 24 having both ends joined in this way are configured such that a cross section cut along a direction perpendicular to the longitudinal direction of the peripheral edge portion 26A of the door opening 26 forms a closed cross section 38. Has been.

  As shown in FIG. 1, the reinforcing member 16 is provided at a corner 26A1 on the upper side of the vehicle formed on the peripheral edge 26A. As shown in FIG. 3, the reinforcing member 16 includes a main body portion 40 and a reinforcing portion 42. The main body portion 40 is formed to be curved so as to extend along the longitudinal direction (arrow A1 direction) of the corner portion 26A1.

  The reinforcing portion 42 is formed continuously to the end portion 40 </ b> B opposite to the door opening 26 side in the main body portion 40, and is folded back to the vehicle width direction outer side of the main body portion 40. And this reinforcement part 42 is formed in roll shape, and forms the hollow part 44 with the main-body part 40. As shown in FIG. Further, the distal end portion 42A of the reinforcing portion 42 is joined to the main body portion 40 by a plurality of welding portions 46 by, for example, arc welding. The reinforcing member 16 is formed by, for example, roll forming molding or press molding of a single plate material. Further, the hollow portion 44 extends with the longitudinal direction of the corner portion 26A1 as the axial direction, and is formed in the closed cross section 38 as shown in FIG.

  On the other hand, as shown in FIG. 1, the reinforcing member 18 is provided at a corner portion 26A2 on the vehicle rear side formed in the peripheral portion 26A. The reinforcing member 18 has a configuration similar to that of the above-described reinforcing member 16 and includes a main body portion 50 and a reinforcing portion 52 as shown in FIG.

  The main body portion 50 extends along the longitudinal direction of the corner portion 26A2 (the direction of the arrow A2 in FIG. 1), and the reinforcing portion 52 is formed in a roll shape outside the main body portion 50 in the vehicle width direction. A hollow portion 54 is formed with the portion 50. Further, the distal end portion 52A of the reinforcing portion 52 is joined to the main body portion 50 by, for example, a welding portion 56 by arc welding. The hollow portion 54 extends with the longitudinal direction of the corner portion 26 </ b> A <b> 2 as the axial direction, and is formed in the closed section 38. Further, the end portion 50A on the door opening 26 side of the main body portion 50 is sandwiched between a pair of flanges 22A and 24A, and is joined to the pair of flanges 22A and 24A by a welded portion 28.

  A skeleton reinforcing member 60 (rear pillar reinforcement) is provided on the vehicle rear side of the reinforcing member 18. The skeletal reinforcing member 60 is provided in the closed cross-section 38 and is formed in a cross-sectional hat shape that opens inward in the vehicle width direction. Both end portions 60A and 60B of the skeleton reinforcing member 60 are joined to the inner panel 24 by, for example, welded portions 62 and 64 by spot welding.

  In addition, as FIG. 1 shows, the reinforcement member 20 is provided in corner part 26A3 of the vehicle lower side formed in the peripheral part 26A. The reinforcing member 20 has the same configuration as the reinforcing members 16 and 18 described above, and a description thereof is omitted.

  Next, the operation and effect of the first embodiment of the present invention will be described.

  According to the door opening structure 10 according to the first embodiment of the present invention, the corner portion 26A1 formed on the peripheral edge portion 26A of the door opening 26 is within the closed section 38 of the skeleton member 14 as shown in FIG. The reinforcing member 16 having the hollow portion 44 is reinforced. Therefore, for example, even when stress is concentrated on the corner portion 26A1 due to the upward input A and the downward input B (see FIG. 1) from the suspension or the like to the vehicle body 12 during traveling of the vehicle, the corner portion 26A1 is deformed (folded). Can be suppressed.

  Similarly, the corner portions 26A2 and 26A3 are reinforced by the reinforcing members 18 and 20, respectively. Therefore, for example, even when stress is concentrated on the corner portions 26A2 and A3 during traveling of the vehicle, the deformation of the corner portions 26A2 and 26A3 can be suppressed. As described above, for example, the vibration of the roof panel 34 continuous with the side portion of the vehicle body 12 in which the door opening 26 is formed can be suppressed, and the NV (noise and vibration) performance in the vehicle can be improved. .

  Further, as shown in FIG. 2, since the hollow portion 44 is formed in the reinforcing member 16 itself, the closed cross section 38 of the skeletal member 14 can be easily obtained simply by joining a part of the reinforcing member 16 to the skeleton member 14. The hollow part 44 which forms a closed cross-section different from this in the inside can be arrange | positioned. Thereby, corner part 26A1 (refer FIG. 1) formed in the peripheral part 26A of the door opening 26 can be easily reinforced. Further, by disposing the hollow portion 44 inside the closed cross section 38, deformation of the closed cross section 38, and hence deformation of the corner portion 26A1, can be more effectively suppressed. The same applies to the other reinforcing members 18 and 20.

  Next, a modification of the first embodiment of the present invention will be described.

  As indicated by an imaginary line (two-dot chain line) in FIG. 2, an abdomen 40C (a part corresponding to the abdomen of the hollow part 44) on the opposite side of the door opening 26 in the main body 40 is, for example, spot welded to the inner panel 24. They may be joined by a welded portion 70 such as plug welding or laser welding. The abdomen 40C may be fixed to the inner panel 24 with an adhesive.

  Further, as shown in FIG. 5, flanges 40D are formed on both ends of the body portion 40 in the longitudinal direction of the corner portion 26A1, and the flanges 40D are joined to the inner panel 24 by, for example, a welded portion 72 by spot welding. May be. If comprised as mentioned above, since the rigidity of the reinforcement member 16 can be improved, the deformation | transformation of corner part 26A1 can be suppressed further.

  Further, as shown in FIG. 5, a plurality of flanges 42 </ b> B may be formed at the distal end portion 42 </ b> A of the reinforcing portion 42 at intervals in the longitudinal direction of the corner portion 26 </ b> A <b> 1. And each flange 42B may be joined to the main-body part 40 by the welding part 74 by spot welding, for example.

  Further, the reinforcing member 16 may be configured as follows. That is, in the modification shown in FIGS. 6 and 7, the side opposite to the door opening 26 side of the main body 40 is extended to the flanges 22B and 24B, and the main body 40 is arranged in the longitudinal direction of the corner portion 26A1. A pair of slits 40E (see FIG. 7) is formed from the end 40B side. A portion between the slits 40 </ b> E is folded back outward in the vehicle width direction and formed as a reinforcing portion 42. Further, a flange 42C is formed at the distal end portion 42A of the reinforcing portion 42 along the longitudinal direction of the corner portion 26A1. 40.

  In the reinforcing member 16 shown in FIGS. 6 and 7, the reinforcing portion 42 is extended to the opposite side to the end portion 40 </ b> A side of the main body portion 40 and is folded back outward in the vehicle width direction. 40 extends to the side opposite to the end 40B side and may be folded outward in the vehicle width direction (that is, may be formed upside down with respect to the configuration of FIGS. 6 and 7).

  Further, as shown in FIG. 6, the end 40B opposite to the door opening 26 side in the main body 40 is sandwiched between a pair of flanges 22B and 24B, and the pair of flanges 22B and 24B and the welded portion. 36 may be joined. Even if comprised in this way, the rigidity of the reinforcing member 16 can be improved.

  Further, as shown by an imaginary line (two-dot chain line) in FIG. 6, an intermediate portion 40F between the end portion 40A and the end portion 40B in the main body portion 40 is, for example, spot welded, plug welded, or lasered on the inner panel 24. You may join by the welding parts 78, such as welding. Further, the intermediate portion 40F may be fixed to the inner panel 24 with an adhesive. Even if comprised in this way, the rigidity of the reinforcing member 16 can be improved.

  Further, as shown in an imaginary line (two-dot chain line) in FIG. 6 and FIG. 8, a bead 80 along the longitudinal direction of the corner portion 26 </ b> A <b> 1 (see FIG. 8) may be formed in the reinforcing portion 42. If comprised in this way, the bending rigidity of the hollow part 44 can be improved by increasing a ridgeline by this bead 80, Therefore A deformation | transformation of corner part 26 A1 can be suppressed further.

  Further, the tip 80A of the bead 80 may be joined to the main body 40 by, for example, a weld 82 by spot welding. If comprised in this way, the bending rigidity of the hollow part 44 can be improved further. The bead 80 may be formed on the main body 40 or may be formed on both the main body 40 and the reinforcing portion 42.

  Further, as shown in FIG. 9, a portion between the end 40 </ b> A and the end 40 </ b> B in the main body 40 is extended to one side (arrow C side) in the direction along the corner 26 </ b> A <b> 1 in the main body 40. At the same time, the reinforcing portion 42 may be formed by folding outward in the vehicle width direction. Further, a flange 42D is formed at the tip end portion 42A of the reinforcing portion 42 along a direction connecting the end portion 40A and the end portion 40B, and the flange 42D is arranged in a direction connecting the end portion 40A and the end portion 40B. The main body 40 may be joined by a plurality of welds 84.

  Moreover, the reinforcement part 42 shown by FIG. 9 may bead 90 formed along the direction which connects the edge part 40A and the edge part 40B. If comprised in this way, the cross-sectional collapse of the hollow part 44 can be suppressed by an increase in a ridgeline by the bead 90. Moreover, the front-end | tip part 90A of the bead 90 may be joined to the main-body part 40 by the welding part 92 by spot welding, for example. If comprised in this way, the cross-sectional collapse of the hollow part 44 can be suppressed further.

  In the reinforcing member 16 shown in FIGS. 2 to 9, for example, when the rigidity of the hollow portion 44 can be ensured, the distal end portion 42 </ b> A of the reinforcing portion 42 is not joined to the main body portion 40. Also good.

  Further, as indicated by an imaginary line (two-dot chain line) in FIG. 4, an abdomen 50C (a part corresponding to the abdomen of the hollow part 54) on the side opposite to the door opening 26 in the main body 50 of the reinforcing member 18 is an inner part. The panel 24 may be joined by a welded portion 100 such as spot welding, plug welding, or laser welding. Further, the abdomen 50C may be fixed to the inner panel 24 with an adhesive. If comprised in this way, since the rigidity of the reinforcement member 18 can be improved, a deformation | transformation of corner part 26A2 (refer FIG. 1) can be suppressed further.

  Further, the reinforcing member 18 may be configured as shown in FIGS. That is, in this modification, as shown in FIG. 11, slits 50E are formed from both ends 50B along the both ends 50D of the main body 50 in the longitudinal direction (arrow A2 direction) of the corner 26A2. Further, a portion between both end portions 50 </ b> D in the main body portion 50 is extended to the opposite side to the end portion 50 </ b> A side and folded back outward in the vehicle width direction to form a reinforcing portion 52.

  In addition, a U-shaped (C-shaped) slit 50F is formed between the pair of slits 50E in the reinforcing portion 52, and a flange 50G is formed by an inner portion of the slit 50F. As shown in FIG. 10, the end 50 </ b> B opposite to the door opening 26 side in the main body 50 including the flange 50 </ b> G has an end 60 </ b> A on the door opening 26 side of the skeleton reinforcing member 60 and the inner panel 24. And are joined to each other by a weld 62. As described above, when the end 50B of the main body 50 opposite to the door opening 26 is joined to the end 60A of the skeleton reinforcing member 60, the rigidity of the reinforcing member 18 can be improved.

  Further, as shown in FIG. 10, an intermediate part 50H between the end part 50A and the end part 50B in the main body part 50 is joined to the inner panel 24 by a welding part 102 such as spot welding, plug welding, laser welding or the like. Has been. The intermediate portion 50H may be fixed to the inner panel 24 with an adhesive. Thus, the rigidity of the reinforcing member 18 can also be improved by joining the intermediate portion 50H to the inner panel 24.

  Note that a bead similar to the above-described bead 80 (see FIG. 8) may also be formed in the hollow portion 54 of the reinforcing member 18.

  In the reinforcing member 18 shown in FIGS. 4, 10, and 11, for example, when the rigidity of the hollow portion 54 can be ensured, the distal end portion 52 </ b> A of the reinforcing portion 52 is joined to the main body portion 50. It is not necessary.

  Moreover, it is also possible to employ | adopt the modification (refer FIGS. 5-9) similar to the above-mentioned reinforcement member 16 also about the reinforcement member 20 shown by FIG.

  The door opening structure 10 according to the first embodiment of the present invention is applied to the vehicle side door opening 26 that is opened and closed by the side door. It may be applied to the door opening at the rear of the vehicle.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.

  The door opening structure 110 according to the second embodiment of the present invention shown in FIG. 12 is different from the above-described door opening structure 10 (see FIGS. 1 to 9) in that the configuration of the hollow portion 44 in the reinforcing member 16 is changed. Yes. That is, as shown in FIGS. 12 to 14, the hollow portion 44 of the reinforcing member 16 is provided outside the corner portion 26A1 and is curved so as to protrude toward the corner portion 26A1 side (arrow IN side). Is formed. That is, the hollow portion 44 is formed to bend in a direction opposite to the bent shape (curve) of the corner portion 26A1.

  With this configuration, even if a moment acts in a direction in which the corner portion 26A1 is deformed (bent) with respect to the corner portion 26A1 due to an input to the vehicle body 12 from a suspension or the like during traveling of the vehicle, the moment Can be reduced (cancelled) by the hollow portion 44. Thereby, the deformation of the corner portion 26A1 can be further suppressed.

  Further, as shown in FIG. 14, when the hollow portion 44 is fixed to the inner panel 24 with the adhesive 104, the rigidity of the reinforcing member 16 can be further improved. The hollow portion 44 may be fixed to the inner panel 24 by welding such as spot welding, plug welding, or laser welding.

  Here, with reference to FIGS. 15A to 15C, when a load is input to the linear hollow portion 144, the moment generated in the linear hollow portion 144 and the curved shape of the present embodiment. A difference from the moment generated in the curved hollow portion 44 when a load is input to the hollow portion 44 will be described.

  First, as shown in FIGS. 15A and 15C, when the concentrated load W is input to the linear hollow portion 144, the hollow portion 44 has a maximum at the point of application of the concentrated load W. Moment M1 acts. On the other hand, as shown in FIGS. 15B and 15C, when the concentrated load W is input to the curved hollow portion 44 of the present embodiment, the maximum is obtained at the point of application of the concentrated load W. Moment M2 acts. However, the maximum value M2max of the moment M2 is smaller than the maximum value M1max of the moment M1.

  This is because the fulcrum reaction forces F and F act on the curved hollow portion 44 from the fulcrums R1 and R2 that support the curved hollow portion 44 in the center direction of the hollow portion 44, so that the cancel moment M3 is This is due to what happens.

  That is, by forming the hollow portion 44 so as to be curved with respect to the input direction of the load W, fulcrum reaction forces F and F are generated at both ends of the hollow portion 44, and thereby the moment acting on the hollow portion 44. Can be reduced. This is equivalent to the fact that the cancellation moment acts on the hollow portion 44 to improve the rigidity of the hollow portion 44 with respect to the input load.

  Thus, when the hollow portion 44 is formed in a curved shape, the moment acting on the hollow portion 44 can be reduced, and the rigidity of the hollow portion 44 and, consequently, the reinforcing member 16 (see FIGS. 12 and 13). Stiffness can be improved.

  Although not particularly illustrated, the hollow portions of the other reinforcing members 18 and 20 (see FIG. 1) can be configured similarly to the hollow portion 44 of the reinforcing member 16 described above.

  Moreover, also about the door opening structure 110 which concerns on 2nd embodiment of this invention, the modification (refer FIGS. 5-11) similar to the above-mentioned door opening structure 10 which concerns on 1st embodiment of this invention is employ | adopted. Is possible.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

10, 110 Door opening structure 14 Frame member 16, 18, 20 Reinforcing member 22 Outer panel (one of a pair of panels)
24 Inner panel (the other of a pair of panels)
26 Door opening 26A Peripheral part 26A1, 26A2, 26A3 Corner part 30 Joint part 38 Closed section 40, 50 Body part 42, 52 Reinforcement part 44, 54 Hollow part 60 Skeletal reinforcement member 80 Bead

Claims (4)

A skeleton member configured to have a pair of panels forming a closed cross section, and a joint portion on one end side of the pair of panels forming a peripheral portion of a door opening formed in the vehicle;
A main body portion that extends along a longitudinal direction of a corner portion formed in the peripheral edge portion, and an end portion of the door opening side is bonded to the bonding portion, and a door opening side of the main body portion on the door opening side. A reinforcing member having a reinforcing portion that forms a hollow portion in the closed cross-section by folding back an end opposite to the end in the vehicle width direction ;
Door opening structure with. The hollow portion is provided outside the corner portion, and is formed to be curved so as to protrude toward the corner portion.
The door opening structure according to claim 1. An end portion of the main body portion opposite to the door opening side is joined to a joint portion on the other end side of the pair of panels, or a skeleton reinforcing member provided in the skeleton member.
The door opening structure according to claim 1 or 2. The hollow part has a bead along the longitudinal direction of the corner part,
The door opening structure as described in any one of Claims 1-3.