WO2020049635A1 - End part structure for vehicle body - Google Patents

End part structure for vehicle body Download PDF

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Publication number
WO2020049635A1
WO2020049635A1 PCT/JP2018/032759 JP2018032759W WO2020049635A1 WO 2020049635 A1 WO2020049635 A1 WO 2020049635A1 JP 2018032759 W JP2018032759 W JP 2018032759W WO 2020049635 A1 WO2020049635 A1 WO 2020049635A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
extension
extension portion
main body
beam main
Prior art date
Application number
PCT/JP2018/032759
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French (fr)
Japanese (ja)
Inventor
知央 渡部
輝 芳賀
真也 田邊
圭介 権田
Original Assignee
本田技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to PCT/JP2018/032759 priority Critical patent/WO2020049635A1/en
Priority to JP2020540900A priority patent/JP6990778B2/en
Priority to CN201880095962.6A priority patent/CN112512870B/en
Publication of WO2020049635A1 publication Critical patent/WO2020049635A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement

Definitions

  • the present invention relates to an end structure of a vehicle body having a bumper beam for receiving an impact load.
  • a bumper beam extending substantially along the vehicle width direction is provided at an end of the vehicle in the front-rear direction.
  • the bumper beams are supported at the ends of left and right side frame members extending substantially along the front-rear direction of the vehicle body. The impact load inputted to the bumper beam from the front and rear direction of the vehicle body is received by the left and right side frame members.
  • the bumper beam receiving a load from the vehicle front-rear direction is formed to have a substantially constant vertical width. For this reason, when an external object such as another vehicle relatively moves in the approaching direction, an area where the impact load can be stably received is limited, and a point where a load input from the external object is applied. Local load concentration is likely to occur.
  • the problem to be solved is to provide a vehicle end structure that can efficiently receive an impact load input from the front-rear direction of the vehicle body while avoiding local load concentration.
  • An end structure of a vehicle body includes, at a front portion or a rear portion of the vehicle body, left and right side frame members extending substantially along a vehicle front-rear direction, and extending substantially along a vehicle width direction, and A bumper beam supported across a side frame member, wherein the bumper beam is a beam main body coupled to the left and right side frame members, and at least in a vehicle width direction central region of the beam main body. And an extension portion extending vertically longer than the beam main body portion.
  • the expanded portion has a wider vertical width than the beam main body, so that the load can be efficiently received in a wide area and the load is locally concentrated, as compared with a case where the load is received only by the beam main body. Can be prevented.
  • the impact load input to the extension portion can be transmitted to the left and right side frame members via the beam main body portion, the member positioned outside the vehicle compartment in the front-rear direction can be used. Displacement in the room direction can be suppressed.
  • the extension portion may be configured as a separate component from the beam main body, and may be coupled to the beam main body.
  • the beam body and the extension are formed as separate components, the components can be shared by the bumper beam having no extension and the bumper beam having the extension. Therefore, by adopting this configuration, it is possible to improve the production efficiency of parts.
  • the extension portion has an upper extension portion extending above the beam main body portion, and a lower extension portion extending below the beam main body portion, and the lower extension portion and the upper extension portion A notch is provided at one of the end portions on the outside in the vehicle width direction.
  • a sensor, a radar, or the like can be arranged in a cutout provided in either the upper extension or the lower extension. Further, by disposing the sensor, the radar, and the like inside the front and rear direction of the vehicle body with respect to the extension portion, the sensor, the radar, and the like can be protected by the extension portion against an external input load.
  • the end structure of the vehicle further includes a substantially rectangular frame frame that supports a heat-radiating component in a central region in a vehicle width direction at a front portion of the vehicle, and the extended portion includes a vehicle body between right and left vertical frame portions of the frame frame. It may be arranged so as to cover the outer region in the front-rear direction.
  • the extended portion of the bumper beam covers the outside of the heat radiating component in the vehicle longitudinal direction, the heat radiating component can be protected by the extended portion.
  • Each of the left and right side frame members includes a first frame extending forward or rearward from a vehicle compartment area, and a second frame extending forward or rearward from a vehicle width direction outer region than the vehicle compartment, and May extend in the vehicle width direction to outer positions in the vehicle longitudinal direction of the left and right second frames.
  • the extended portion having a large vertical overhang extends to the outer position in the vehicle longitudinal direction of the outer second frame, when another object relatively moves in the approaching direction, the impact load is reduced by the extended portion. It can be received stably.
  • the impact load is stably received by the wide area of the extended portion and is supported by the first frame and the second frame on the vehicle width direction outside. be able to.
  • the extension portion has a base portion coupled to an outer portion of the beam main body portion in the vehicle front-rear direction, and an extension portion extending at least one of upward and downward from the base portion, and the bumper beam includes: An extension portion support member that connects the beam body portion and the extension portion is further provided, and the extension portion support member has a joining flange joined to an inner side surface of the extension portion in a vehicle longitudinal direction. Is also good.
  • the joining flange of the extension support member supports the extension of the expanded portion of the bumper beam from the rear side (inside the vehicle longitudinal direction), the impact load from the vehicle longitudinal direction is reduced.
  • the fall of the extension portion can be regulated by the joining flange. Therefore, the impact load input from the front-rear direction of the vehicle body can be efficiently received by the extension portion.
  • the extension portion includes an upper extension portion extending upward from the base portion, and a lower extension portion extending downward from the base portion, and the extension portion support member joined to the upper extension portion.
  • the extension support member joined to the lower extension may be constituted by components having substantially the same shape.
  • the same part can be shared by the extension support member joined to the upper extension and the extension support member joined to the lower extension. Therefore, by adopting this configuration, it is possible to increase the production efficiency of parts. Further, in the case of the above configuration, the upper extension support member supporting the upper extension and the lower extension support member supporting the lower extension are vertically symmetrically arranged. Therefore, when an impact load is input to the extended portion from the front-rear direction of the vehicle body, the impact load can be stably received by cooperation of the upper and lower extending portion support members.
  • the extension portion includes an upper extension portion extending upward from the base portion, and a lower extension portion extending downward from the base portion, and the extension portion support member joined to the upper extension portion.
  • the extension support member joined to the lower extension is connected to each other by a connection plate inside the beam main body in the vehicle longitudinal direction, and substantially parallel to the connection plate in the up-down direction. A reinforcing bead may be formed.
  • the rigidity of the connecting plate in the vertical direction is enhanced by the reinforcing beads. For this reason, the fall of the upper extension portion and the lower extension portion can be reliably restricted by the reinforcing beads.
  • An end structure of a vehicle body includes, at a front portion or a rear portion of the vehicle body, left and right side frame members extending substantially along the vehicle front-rear direction, and extending substantially along the vehicle width direction, and A bumper beam supported across a side frame member, wherein the bumper beam is attached to the left and right side frame members, and the beam body is attached to the beam body portion. And a beam protection member that covers upper and lower surfaces of the beam main body.
  • the beam protection member covering the outer side surface and the upper and lower surfaces of the beam body in the vehicle longitudinal direction applies a load from the external object. It becomes easy to receive. Since the beam protection member has a larger vertical width as compared to the beam main body, the load can be efficiently received in a wider area as compared with a case where the load is received only by the beam main body, and the load is locally concentrated. Can be prevented. Furthermore, in the above configuration, since the impact load input to the beam protection member can be transmitted to the left and right side frame members via the beam main body, the members located outside the vehicle compartment in the front-rear direction can be used. Displacement in the vehicle compartment direction can be suppressed.
  • the bumper beam is vertically longer than the beam main body at least in the vehicle width direction central region of the beam main body coupled to the left and right side frame members. And an extension that extends. For this reason, in the end structure of the vehicle body of the present invention, when an impact load is input from the vehicle front-rear direction, the extension load efficiently receives the impact load input from the vehicle front-rear direction while avoiding local load concentration. be able to.
  • FIG. 4 is a cross-sectional view of the bumper beam of the embodiment, taken along line IV-IV in FIG. 2. It is a perspective view of a bumper beam of an embodiment. It is a rear view of a bumper beam of an embodiment. It is a front view showing the skeleton part of the front part of vehicles of other embodiments.
  • front and rear, up and down, and left and right mean front and rear, up and down, and left and right of a vehicle unless otherwise specified.
  • the arrow FR in the drawing indicates the front of the vehicle
  • the arrow UP indicates the upper side of the vehicle
  • the arrow LH indicates the left side of the vehicle.
  • FIG. 1 is a perspective view illustrating a skeletal portion of a front portion of the vehicle 1 according to the embodiment.
  • FIG. 2 is a front view of a skeleton of a front portion of the vehicle 1
  • FIG. 3 is a top view of a skeleton of a front portion of the vehicle 1.
  • a pair of left and right front side frames 2 (first frames) extending substantially along the vehicle front-rear direction is provided at the front of the vehicle body.
  • a lower member 3 (second frame) is provided on the outer side in the vehicle width direction of the left and right front side frames 2 so as to bend from the vicinity of the upper suspension support portion toward the front lower side.
  • the front side frame 2 extends forward from the vehicle compartment area to the vehicle body
  • the lower member 3 extends forward from the vehicle interior area toward the vehicle body from the vehicle width direction outside area.
  • the left and right front side frames 2 and the lower member 3 constitute side frame members at the front of the vehicle body.
  • a base plate 4 that stands upright so as to face the front of the vehicle is attached.
  • a substantially cylindrical first extension 5 is attached to the front surface of the base plate 4 at a position above the extension of the front side frame 2.
  • a substantially cylindrical second extension 6 is attached to the front surface of the base plate 4 at a position overlapping the front end of the lower member 3 in the front-rear direction.
  • the front end of each of the first extension 5 and the second extension 6 is connected to a side back surface of a bumper beam 7 extending substantially along the vehicle width direction. Accordingly, the bumper beam 7 is supported across the left and right side frame members (the front side frame 2 and the lower member 3).
  • a resin bumper face (not shown) is disposed on the front side of the bumper beam 7.
  • frame frames 8 for supporting heat-dissipating parts such as outdoor heat exchangers and fans are attached to the front ends of the left and right front side frames 2.
  • the frame 8 is formed in a substantially rectangular shape when viewed from the front.
  • the frame 8 is disposed in a central region in the vehicle width direction at the front of the vehicle body.
  • the bumper beam 7 is arranged across the front of the frame 8 in the vehicle width direction.
  • the frame 8 includes left and right vertical frame portions 8a, an upper frame portion 8b connecting upper end portions of the left and right vertical frame portions 8a, and a lower frame portion 8c connecting lower end portions of the left and right vertical frame portions 8a.
  • the heat radiating components such as the outdoor heat exchanger and the fan are arranged inside or behind the opening of the frame 8.
  • FIG. 4 is a cross-sectional view of the bumper beam 7 taken along the line IV-IV in FIG. 2, and FIG. 5 is a view of the right side portion of the bumper beam 7 viewed obliquely from above at the rear.
  • FIG. 6 is a view of the central region of the bumper beam 7 in the vehicle width direction as viewed from the back side (rear side).
  • the bumper beam 7 includes a beam main body 9 whose left and right sides are coupled to the corresponding left and right front side frames 2 and the lower member 3 (left and right side frame members) via the first extension 5 and the second extension 6. And an extended portion 10 integrally attached to a central region of the beam main body 9 in the vehicle width direction.
  • the extension portion 10 is formed of, for example, a hard plate material such as a high-tensile steel plate.
  • the beam main body 9 is formed in a substantially hat-shaped cross-section opening to the rear side of the vehicle body, and the cross-section extends in the vehicle width direction.
  • the central region of the beam main body 9 in the vehicle width direction is formed with a substantially constant vertical width.
  • the extension 10 extends vertically longer than the beam main body 9.
  • the extension portion 10 includes a base portion 10 b coupled to a front surface (an outer portion in the vehicle front-rear direction) of the beam main body portion 9, and an upper portion inclined upward from the upper end of the base portion 10 b toward the vehicle rear side. It has an upper extension 10u that extends, and a lower extension 10l that extends downward from the lower end of the base 10b while being inclined rearward of the vehicle body.
  • the base portion 10b covers the front surface (outer surface in the vehicle body front-rear direction) of the beam main body portion 9, and the upper extension portion 10u and the lower extension portion 101 cover the upper surface and the lower surface of the beam main body portion 9, respectively.
  • the extension portion 10 constitutes a beam protection member that covers the outer surface of the beam main body 9 in the vehicle longitudinal direction and the upper and lower surfaces.
  • the central region of the beam main body 9 in the vehicle width direction has a pair of upper and lower flanges 9f. These flange portions 9f are formed by bending upward and downward from the rear end portions of the upper and lower horizontal walls of the beam main body 9, respectively.
  • the upper flange portion 9f of the beam main body 9 is connected to the rear surface of the upwardly extending portion 10u of the extension portion 10 via a support plate 11u having a substantially Z-shaped cross section.
  • the lower flange portion 9f of the beam main body 9 is connected to the rear surface of the lower extension portion 10l of the extension portion 10 via a support plate 11l having a substantially Z-shaped cross section.
  • the support plates 11u and 11l constitute an extension support member that connects the beam main body 9 and each extension (upper extension 10u and lower extension 10l).
  • the upper support plate 11u has a joining flange 11uf that bends and extends upward in the vicinity of the upper extending portion 10u, and the joining flange 11uf is provided on the rear surface on the upper end side of the upper extending portion 10u of the extension portion 10. They are joined by welding or the like.
  • the lower support plate 11l has a joining flange 11lf that bends and extends downward in the vicinity of the lower extension 10l, and the joining flange 11lf is connected to the lower end of the lower extension 10l of the extension 10. It is joined to the back of the side by welding or the like.
  • the upper support plate 11u and the lower support plate 11l are constituted by components having substantially the same shape.
  • the upper support plate 11u and the lower support plate 11l can be turned upside down to use common parts.
  • the rear edges of the upper support plate 11u and the lower support plate 11l are connected to each other by a horizontally long rectangular connection plate 12 on the rear side of the beam main body 9.
  • the upper edge of the upper support plate 11u, the upper edge of the connection plate 12, and the upper flange 9f of the beam main body 9 may be welded and fixed in a three-layered state.
  • the lower edge of the lower support plate 11l, the lower edge of the connection plate 12, and the upper flange 9f of the beam main body 9 may be welded and fixed in a three-layered state.
  • connection plate 12 is formed with a reinforcing bead 13 extending substantially along the vertical direction.
  • a plurality of reinforcing beads 13 are provided apart from each other in the longitudinal direction of the connection plate 12.
  • the extended portion 10 of the bumper beam 7 is disposed so as to cover a front region (outer region in the vehicle longitudinal direction) between the left and right vertical frame portions 8 a of the frame 8. Specifically, when viewed from the front of the vehicle, the left and right ends of the extension portion 10 are arranged so as to partially overlap the corresponding left and right vertical frame portions a.
  • the extended portion 10 is provided with a step-shaped notch 14 at the outer end in the vehicle width direction of the downwardly extending portion 101. Therefore, the width in the vehicle width direction of the lower extension 10l of the extension 10 is smaller than the width of the upper extension 10u in the vehicle width direction.
  • a detector 15 such as a radar or a sensor is arranged behind the left and right cutouts 14 of the extension unit 10.
  • the notch 14 may be provided only at one of the left and right ends of the downward extension 10l.
  • the notch 14 can be provided at the outer end in the vehicle width direction of the upper extension 10u.
  • the end structure of the vehicle according to the present embodiment includes a beam main body 9 in which the bumper beam 7 is coupled to the left and right front side frames 2 and the lower member 3, and a central region in the vehicle width direction of the beam main body 9.
  • the load can be received over a wide area of the extension portion 10, so that the load can be prevented from being concentrated on the bumper beam 7. Therefore, when the end structure according to the present embodiment is adopted, the impact load input from the front of the vehicle body can be efficiently processed by the extension unit 10 while avoiding local load concentration when the impact load is input from the front of the vehicle body. I can take it.
  • the impact load input to the extension portion 10 can be transmitted to the left and right front side frames 2 and the lower members 3 via the beam main body 9, Displacement of the member located in front of the compartment in the vehicle compartment direction can be suppressed.
  • the extension portion 10 is configured by a separate component from the beam main body portion 9, and the extension portion 10 that is a separate component is coupled to the beam main body portion 9. . Therefore, parts can be shared by the bumper beam having no extension 10 and the bumper beam 7 having the extension 10. Therefore, when the configuration of the present embodiment is adopted, it is possible to improve the production efficiency of parts.
  • a notch 14 is provided at an end in the vehicle width direction of the downward extension 10 l of the extension 10, and a radar or the like is provided on the back side of the notch 14.
  • a detector 15 such as a sensor is provided. Therefore, the detector 15 can be installed without any inconvenience even if the extended portion 10 having a large vertical width of the bumper beam 7 is arranged in the central region in the front part of the vehicle body. Further, by arranging the detector 15 on the rear side of the vehicle body with respect to the extended portion, the detector 15 can be protected against a load input from the front of the vehicle body.
  • the end structure of the vehicle 1 according to the present embodiment is arranged such that the extended portion 10 of the bumper beam 7 covers a front region between the left and right vertical frame portions 8a of the frame 8. For this reason, the radiating components such as the outdoor heat exchanger and the fan can be protected by the extension portion 10 against an impact load input from the front of the vehicle body.
  • the extension portion 10 has a base portion 10b, an upper extension portion 10u, and a lower extension portion 10l, and the support plates 11u, 11 l of joining flanges 11 uf and 11 lf are joined to the respective rear surfaces of the upper extension 10 u and the lower extension 10 l.
  • the joining flanges 11uf and 11lf of the support plates 11u and 11l can stably support the rear surfaces of the upper extending portion 10u and the lower extending portion 10l on the extension portion 10, so that the front surface of the vehicle can be prevented.
  • the falling of the upper extension 10u and the lower extension 10l can be restricted. Therefore, when the end structure of the vehicle 1 of the present embodiment is adopted, the impact load input from the front of the vehicle body can be more efficiently received by the extension portion 10.
  • the upper and lower support plates 11u and 11l for supporting the respective back surfaces of the upper extension 10u and the lower extension 10l are formed by components having substantially the same shape, the upper and lower support plates 11u are formed. , 11l can use common components. Therefore, when this configuration is employed, the production efficiency of parts can be increased. Further, in the structure of the present embodiment, since the upper and lower support plates 11u and 11l are arranged symmetrically in the vertical direction, when an impact load is input to the extension portion 10 from the front of the vehicle body, the upper and lower support plates 11u and 11l are provided. Can stably receive the impact load.
  • connection plate 12 on the rear side of the beam main body 9 and are vertically connected.
  • a plurality of reinforcing beads 13 extending substantially along are provided on the connecting plate 12. Therefore, in the end structure of the vehicle 1 of the present embodiment, the connection plate 12 whose rigidity in the vertical direction is increased by the reinforcing bead 13 restricts the upward extension 10u and the downward extension 10l of the extension 10 from falling. can do.
  • FIG. 7 is a front view showing a skeletal portion of a front portion of the vehicle 1 of another embodiment.
  • the basic structure of the end structure of the vehicle shown in FIG. 7 is substantially the same as that of the above embodiment.
  • the extended portion 110 of the bumper beam 107 extends outward beyond the front end portions of the left and right lower members 3 in the vehicle width direction.
  • the extended portion 110 having a large vertical overhang extends to a range exceeding the front end position of the left and right outer lower members 3.
  • the load can be more stably received by the extension portion 110.
  • the impact load is stably received by the wide area of the extension portion 110, and the front side frame 2 and the lower member on the vehicle width direction outer side. 3 can be supported.
  • the present invention is not limited to the above embodiment, and various design changes can be made without departing from the gist of the present invention.
  • the end structure of the vehicle according to the present invention is applied to the skeleton of the front part of the vehicle, but the end structure of the vehicle according to the present invention is applied to the skeleton of the rear part of the vehicle. Can be similarly applied.
  • the extension of the bumper beam may be formed integrally with the beam main body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

An end part structure for a vehicle body comprises left and right side frame members, and a bumper beam. The side frame members extend substantially along the longitudinal direction of the vehicle body in the front part or the rear part of the vehicle body. The bumper beam extends substantially along the vehicle width direction, and is supported spanning the left and right side frame members. The bumper beam has: a beam body part connected to the left and right side frame members; and, in at least a center area in the vehicle width direction of the beam body part, an extension part extending farther in the vertical direction than the beam body part.

Description

車体の端部構造Car body end structure
　本発明は、衝撃荷重を受け止めるバンパービームを備えた車体の端部構造に関する。 The present invention relates to an end structure of a vehicle body having a bumper beam for receiving an impact load.
　車両の前後方向の端部には、車幅方向に略沿って延びるバンパービームが設けられている。バンパービームは、車体の前後方向に略沿って延びる左右の側部フレーム部材の端部に支持されている。車体前後方向からバンパービームに入力された衝撃荷重は、左右の側部フレーム部材によって受け止められる。 バ ン A bumper beam extending substantially along the vehicle width direction is provided at an end of the vehicle in the front-rear direction. The bumper beams are supported at the ends of left and right side frame members extending substantially along the front-rear direction of the vehicle body. The impact load inputted to the bumper beam from the front and rear direction of the vehicle body is received by the left and right side frame members.
日本国特開２０１０－１８８９６６JP 2010-188966
　従来の車両の端部構造では、車体前後方向から荷重を受けるバンパービームが略一定の上下幅に形成されている。このため、他の車両等の外部の物体が近接方向に相対移動してきたときに、衝撃荷重を安定して受け止めることができる領域が限られているうえ、外部の物体からの荷重入力点等に局所的な荷重集中を生じ易い。 で は In the conventional vehicle end structure, the bumper beam receiving a load from the vehicle front-rear direction is formed to have a substantially constant vertical width. For this reason, when an external object such as another vehicle relatively moves in the approaching direction, an area where the impact load can be stably received is limited, and a point where a load input from the external object is applied. Local load concentration is likely to occur.
　解決しようとする課題は、局所的な荷重集中を回避しつつ、車体前後方向から入力される衝撃荷重を効率良く受け止めることができる車両の端部構造を提供することである。 The problem to be solved is to provide a vehicle end structure that can efficiently receive an impact load input from the front-rear direction of the vehicle body while avoiding local load concentration.
　本出願の一の形態の車体の端部構造は、車体の前部または後部において、車体前後方向に略沿って延びる左右の側部フレーム部材と、車幅方向に略沿って延び、左右の前記側部フレーム部材に跨って支持されるバンパービームと、を備え、前記バンパービームは、左右の前記側部フレーム部材に結合されるビーム本体部と、少なくとも前記ビーム本体部の車幅方向中央領域において、前記ビーム本体部よりも上下方向に長く延びる拡張部と、を有することを特徴とする。 An end structure of a vehicle body according to one embodiment of the present application includes, at a front portion or a rear portion of the vehicle body, left and right side frame members extending substantially along a vehicle front-rear direction, and extending substantially along a vehicle width direction, and A bumper beam supported across a side frame member, wherein the bumper beam is a beam main body coupled to the left and right side frame members, and at least in a vehicle width direction central region of the beam main body. And an extension portion extending vertically longer than the beam main body portion.
　上記の構成により、車体前後方向の外側から外部の物体が相対的に近接移動してくると、上下幅の広い拡張部で外部の物体から荷重を受け易くなる。拡張部は、ビーム本体部に比較して上下幅が広いため、ビーム本体部のみで荷重を受ける場合に比較して、荷重を広い面積で効率良く受け止めることができるとともに、荷重が局所に集中するのを防ぐことができる。さらに、上記の構成では、拡張部に入力された衝撃荷重を、ビーム本体部を介して左右の側部フレーム部材に伝達することができるため、車室の前後方向外側に位置される部材が車室方向に変位するのを抑制することができる。 According to the above configuration, when an external object relatively approaches from the outside in the front-rear direction of the vehicle body, it becomes easy to receive a load from the external object in the extended portion having a large vertical width. The expanded portion has a wider vertical width than the beam main body, so that the load can be efficiently received in a wide area and the load is locally concentrated, as compared with a case where the load is received only by the beam main body. Can be prevented. Further, in the above configuration, since the impact load input to the extension portion can be transmitted to the left and right side frame members via the beam main body portion, the member positioned outside the vehicle compartment in the front-rear direction can be used. Displacement in the room direction can be suppressed.
　前記拡張部は、前記ビーム本体部と別体部品によって構成され、前記ビーム本体部に結合されるようにしても良い。 The extension portion may be configured as a separate component from the beam main body, and may be coupled to the beam main body.
　この場合、ビーム本体部と拡張部が別体部品によって構成されているため、拡張部を持たないバンパービームと、拡張部を持つバンパービームとで部品を共用することができる。したがって、本構成を採用することにより、部品の生産効率の向上を図ることができる。 In this case, since the beam body and the extension are formed as separate components, the components can be shared by the bumper beam having no extension and the bumper beam having the extension. Therefore, by adopting this configuration, it is possible to improve the production efficiency of parts.
　前記拡張部は、前記ビーム本体部よりも上方に延びる上方延出部と、前記ビーム本体部よりも下方に延びる下方延出部と、を有し、前記下方延出部と前記上方延出部のいずれか一方の車幅方向外側の端部に切欠き部が設けられている。 The extension portion has an upper extension portion extending above the beam main body portion, and a lower extension portion extending below the beam main body portion, and the lower extension portion and the upper extension portion A notch is provided at one of the end portions on the outside in the vehicle width direction.
　この場合、上方延出部と下方延出部のいずれかに設けられた切欠き部に、センサやレーダ等を配置することができる。また、センサやレーダ等を拡張部よりも車体前後方向の内側に配置することにより、外部からの入力荷重に対し、拡張部によってセンサやレーダ等を保護することができる。 In this case, a sensor, a radar, or the like can be arranged in a cutout provided in either the upper extension or the lower extension. Further, by disposing the sensor, the radar, and the like inside the front and rear direction of the vehicle body with respect to the extension portion, the sensor, the radar, and the like can be protected by the extension portion against an external input load.
　車両の端部構造は、車両前部の車幅方向中央領域において、放熱部品を支持する略矩形状の枠フレームをさらに備え、前記拡張部は、前記枠フレームの左右の縦フレーム部間の車体前後方向の外側領域を覆うように配置されるようにしても良い。 The end structure of the vehicle further includes a substantially rectangular frame frame that supports a heat-radiating component in a central region in a vehicle width direction at a front portion of the vehicle, and the extended portion includes a vehicle body between right and left vertical frame portions of the frame frame. It may be arranged so as to cover the outer region in the front-rear direction.
　この場合、バンパービームの拡張部が放熱部品の車体前後方向の外側を覆うことになるため、放熱部品を拡張部によって保護することができる。 In this case, since the extended portion of the bumper beam covers the outside of the heat radiating component in the vehicle longitudinal direction, the heat radiating component can be protected by the extended portion.
　左右の各前記側部フレーム部材は、車室領域から前方または後方に延びる第１フレームと、車室よりも車幅方向外側領域から前方または後方に延びる第２フレームと、を備え、前記拡張部は、左右の前記第２フレームの車体前後方向外側位置まで車幅方向に延びるようにしても良い。 Each of the left and right side frame members includes a first frame extending forward or rearward from a vehicle compartment area, and a second frame extending forward or rearward from a vehicle width direction outer region than the vehicle compartment, and May extend in the vehicle width direction to outer positions in the vehicle longitudinal direction of the left and right second frames.
　この場合、上下方向の張り出し幅の広い拡張部が外側の第２フレームの車体前後方向外側位置まで延びているため、他の物体が近接方向に相対移動してきたときに、衝撃荷重を拡張部によって安定して受け止めることができる。特に、他の物体が車幅方向の中央よりも外側に当接するときに、衝撃荷重を拡張部の広い面積で安定的に受け止め、車幅方向外側の第１フレームと第２フレームとに支持させることができる。 In this case, since the extended portion having a large vertical overhang extends to the outer position in the vehicle longitudinal direction of the outer second frame, when another object relatively moves in the approaching direction, the impact load is reduced by the extended portion. It can be received stably. In particular, when another object abuts on the outside of the center in the vehicle width direction, the impact load is stably received by the wide area of the extended portion and is supported by the first frame and the second frame on the vehicle width direction outside. be able to.
　前記拡張部は、前記ビーム本体部の車体前後方向の外側部位に結合されるベース部と、前記ベース部から上方と下方の少なくとも一方に延びる延出部と、を有し、前記バンパービームは、前記ビーム本体部と前記延出部を連結する延出部支持部材をさらに備え、前記延出部支持部材は、前記延出部の車体前後方向の内側面に接合される接合フランジを有する構成としても良い。 The extension portion has a base portion coupled to an outer portion of the beam main body portion in the vehicle front-rear direction, and an extension portion extending at least one of upward and downward from the base portion, and the bumper beam includes: An extension portion support member that connects the beam body portion and the extension portion is further provided, and the extension portion support member has a joining flange joined to an inner side surface of the extension portion in a vehicle longitudinal direction. Is also good.
　この場合、延出部支持部材の接合フランジが、バンパービームの拡張部のうちの延出部を背面側（車体前後方向の内側）から支持することになるため、車両前後方向からの衝撃荷重の入力時に、延出部の倒れを接合フランジによって規制することができる。したがって、車体前後方向から入力される衝撃荷重を拡張部によって効率良く受けとめることができる。 In this case, since the joining flange of the extension support member supports the extension of the expanded portion of the bumper beam from the rear side (inside the vehicle longitudinal direction), the impact load from the vehicle longitudinal direction is reduced. At the time of input, the fall of the extension portion can be regulated by the joining flange. Therefore, the impact load input from the front-rear direction of the vehicle body can be efficiently received by the extension portion.
　前記延出部は、前記ベース部から上方に延びる上方延出部と、前記ベース部から下方に延びる下方延出部とからなり、前記上方延出部に接合される前記延出部支持部材と、前記下方延出部に接合される前記延出部支持部材は、略同一形状の部品によって構成されるようにしても良い。 The extension portion includes an upper extension portion extending upward from the base portion, and a lower extension portion extending downward from the base portion, and the extension portion support member joined to the upper extension portion. The extension support member joined to the lower extension may be constituted by components having substantially the same shape.
　この場合、上方延出部に接合される延出部支持部材と、下方延出部に接合される延出部支持部材とで、同じ部品を共用することができる。したがって、この構成を採用することによって部品の生産効率を高めることができる。また、上記の構成の場合、上方延出部を支持する上側の延出部支持部材と、下方延出部を支持する下側の延出部支持部材が上下で対称に配置されることになるため、拡張部に車体前後方向から衝撃荷重が入力されたときに、上下の延出部支持部材の協働によって衝撃荷重を安定して受け止めることができる。 In this case, the same part can be shared by the extension support member joined to the upper extension and the extension support member joined to the lower extension. Therefore, by adopting this configuration, it is possible to increase the production efficiency of parts. Further, in the case of the above configuration, the upper extension support member supporting the upper extension and the lower extension support member supporting the lower extension are vertically symmetrically arranged. Therefore, when an impact load is input to the extended portion from the front-rear direction of the vehicle body, the impact load can be stably received by cooperation of the upper and lower extending portion support members.
　前記延出部は、前記ベース部から上方に延びる上方延出部と、前記ベース部から下方に延びる下方延出部とからなり、前記上方延出部に接合される前記延出部支持部材と、前記下方延出部に接合される前記延出部支持部材とは、前記ビーム本体部の車体前後方向の内側において、連結プレートによって相互に連結され、前記連結プレートには、上下方向に略沿う補強ビードが形成されるようにしても良い。 The extension portion includes an upper extension portion extending upward from the base portion, and a lower extension portion extending downward from the base portion, and the extension portion support member joined to the upper extension portion. The extension support member joined to the lower extension is connected to each other by a connection plate inside the beam main body in the vehicle longitudinal direction, and substantially parallel to the connection plate in the up-down direction. A reinforcing bead may be formed.
　この場合、連結プレートの上下方向の剛性が補強ビードによって高められる。このため、上方延出部や下方延出部の倒れを補強ビードによって確実に規制することができる。 In this case, the rigidity of the connecting plate in the vertical direction is enhanced by the reinforcing beads. For this reason, the fall of the upper extension portion and the lower extension portion can be reliably restricted by the reinforcing beads.
　本出願の他の形態の車体の端部構造は、車体の前部または後部において、車体前後方向に略沿って延びる左右の側部フレーム部材と、車幅方向に略沿って延び、左右の前記側部フレーム部材に跨って支持されるバンパービームと、を備え、前記バンパービームは、左右の前記側部フレーム部材に結合されるビーム本体部と、前記ビーム本体部に取り付けられて、前記ビーム本体部の車体前後方向の外側面と、前記ビーム本体部の上下面を覆うビーム保護部材と、有することを特徴とする。 An end structure of a vehicle body according to another embodiment of the present application includes, at a front portion or a rear portion of the vehicle body, left and right side frame members extending substantially along the vehicle front-rear direction, and extending substantially along the vehicle width direction, and A bumper beam supported across a side frame member, wherein the bumper beam is attached to the left and right side frame members, and the beam body is attached to the beam body portion. And a beam protection member that covers upper and lower surfaces of the beam main body.
　上記の構成により、車体前後方向の外側から外部の物体が相対的に近接移動してくると、ビーム本体部の車体前後方向の外側面と上下面を覆うビーム保護部材が外部の物体から荷重を受け易くなる。ビーム保護部材は、ビーム本体部に比較して上下幅が広いため、ビーム本体部のみで荷重を受ける場合に比較して、荷重を広い面積で効率良く受け止めることができ、荷重が局所に集中するのを防ぐことができる。さらに、上記の構成では、ビーム保護部材に入力された衝撃荷重を、ビーム本体部を介して左右の側部フレーム部材に伝達することができるため、車室の前後方向外側に位置される部材が車室方向に変位するのを抑制することができる。 With the above configuration, when an external object relatively moves from the outside in the vehicle longitudinal direction, the beam protection member covering the outer side surface and the upper and lower surfaces of the beam body in the vehicle longitudinal direction applies a load from the external object. It becomes easy to receive. Since the beam protection member has a larger vertical width as compared to the beam main body, the load can be efficiently received in a wider area as compared with a case where the load is received only by the beam main body, and the load is locally concentrated. Can be prevented. Furthermore, in the above configuration, since the impact load input to the beam protection member can be transmitted to the left and right side frame members via the beam main body, the members located outside the vehicle compartment in the front-rear direction can be used. Displacement in the vehicle compartment direction can be suppressed.
　本発明の車体の端部構造は、バンパービームが、左右の側部フレーム部材に結合されるビーム本体部と、少なくともビーム本体部の車幅方向中央領域において、ビーム本体部よりも上下方向に長く延びる拡張部と、を有する。このため、本発明の車体の端部構造では、車体前後方向からの衝撃荷重の入力時に、局所的な荷重集中を回避しつつ、車体前後方向から入力される衝撃荷重を拡張部で効率良く受け止めることができる。 In the end structure of the vehicle body of the present invention, the bumper beam is vertically longer than the beam main body at least in the vehicle width direction central region of the beam main body coupled to the left and right side frame members. And an extension that extends. For this reason, in the end structure of the vehicle body of the present invention, when an impact load is input from the vehicle front-rear direction, the extension load efficiently receives the impact load input from the vehicle front-rear direction while avoiding local load concentration. be able to.
実施形態の車両の前部の骨格部を示す斜視図である。It is a perspective view showing a skeleton part of a front part of vehicles of an embodiment. 実施形態の車両の前部の骨格部を示す正面図である。It is a front view showing a skeleton part of a front part of vehicles of an embodiment. 実施形態の車両の前部の骨格部を示す上面図である。It is a top view which shows the skeleton part of the front part of the vehicle of embodiment. 実施形態のバンパービームの図２のＩＶ－ＩＶ線に沿う断面図である。FIG. 4 is a cross-sectional view of the bumper beam of the embodiment, taken along line IV-IV in FIG. 2. 実施形態のバンパービームの斜視図である。It is a perspective view of a bumper beam of an embodiment. 実施形態のバンパービームの背面図である。It is a rear view of a bumper beam of an embodiment. 他の実施形態の車両の前部の骨格部を示す正面図である。It is a front view showing the skeleton part of the front part of vehicles of other embodiments.
　以下、本発明の実施形態を、図面を参照して説明する。なお、以下の説明において、前後や上下、左右については、特別に断らない限り車両についての前後や上下、左右を意味するものとする。また、図中の矢印ＦＲは車両の前方を指し、矢印ＵＰは車両の上方を指し、矢印ＬＨは車両の左側方を指すものとする。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, front and rear, up and down, and left and right mean front and rear, up and down, and left and right of a vehicle unless otherwise specified. In addition, the arrow FR in the drawing indicates the front of the vehicle, the arrow UP indicates the upper side of the vehicle, and the arrow LH indicates the left side of the vehicle.
　図１は、実施形態の車両１の前部の骨格部を示す斜視図である。また、図２は、車両１の前部の骨格部の正面図であり、図３は、車両１の前部の骨格部の上面図である。
　本実施形態の車両１は、車体の前部に、車体前後方向に略沿って延びる左右一対のフロントサイドフレーム２（第１フレーム）が設けられている。また、左右のフロントサイドフレーム２の車幅方向外側には、上方側のサスペンション支持部の近傍から前側下方に向かって湾曲して延びるロアメンバ３（第２フレーム）が設けられている。
　なお、フロントサイドフレーム２（第１フレーム）は、車室領域から車体前方に延び、ロアメンバ３（第２フレーム）は、車室よりも車幅方向外側領域から車体前方に延びている。また、本実施形態においては、左右のフロントサイドフレーム２とロアメンバ３が車体前部の側部フレーム部材を構成している。 FIG. 1 is a perspective view illustrating a skeletal portion of a front portion of the vehicle 1 according to the embodiment. FIG. 2 is a front view of a skeleton of a front portion of the vehicle 1, and FIG. 3 is a top view of a skeleton of a front portion of the vehicle 1.
In the vehicle 1 of the present embodiment, a pair of left and right front side frames 2 (first frames) extending substantially along the vehicle front-rear direction is provided at the front of the vehicle body. Further, a lower member 3 (second frame) is provided on the outer side in the vehicle width direction of the left and right front side frames 2 so as to bend from the vicinity of the upper suspension support portion toward the front lower side.
The front side frame 2 (first frame) extends forward from the vehicle compartment area to the vehicle body, and the lower member 3 (second frame) extends forward from the vehicle interior area toward the vehicle body from the vehicle width direction outside area. In this embodiment, the left and right front side frames 2 and the lower member 3 constitute side frame members at the front of the vehicle body.
　左右同側のフロントサイドフレーム２とロアメンバ３の前端部には、車両前方に向くように垂立するベースプレート４が取り付けられている。ベースプレート４の前面のうちの、フロントサイドフレーム２の延長上位置には、略筒状の第１エクステンション５が取り付けられている。また、ベースプレート４の前面のうちの、ロアメンバ３の前端部と前後方向で重なる位置には、略筒状の第２エクステンション６が取り付けられている。第１エクステンション５と第２エクステンション６の各前端部は、車幅方向に略沿って延びるバンパービーム７の側部背面に結合されている。したがって、バンパービーム７は、車体左右の側部フレーム部材（フロントサイドフレーム２，ロアメンバ３）に跨って支持されている。バンパービーム７の前面側には、図示しない樹脂製のバンパーフェイスが配置されている。 ベ ー ス At the front ends of the front side frame 2 and the lower member 3 on the same side, a base plate 4 that stands upright so as to face the front of the vehicle is attached. A substantially cylindrical first extension 5 is attached to the front surface of the base plate 4 at a position above the extension of the front side frame 2. A substantially cylindrical second extension 6 is attached to the front surface of the base plate 4 at a position overlapping the front end of the lower member 3 in the front-rear direction. The front end of each of the first extension 5 and the second extension 6 is connected to a side back surface of a bumper beam 7 extending substantially along the vehicle width direction. Accordingly, the bumper beam 7 is supported across the left and right side frame members (the front side frame 2 and the lower member 3). A resin bumper face (not shown) is disposed on the front side of the bumper beam 7.
　また、左右のフロントサイドフレーム２の前端側には、室外熱交換器やファン等の放熱部品を支持するための枠フレーム８が取り付けられている。枠フレーム８は、正面視が略矩形状に形成されている。枠フレーム８は、車体前部の車幅方向中央領域に配置されている。バンパービーム７は、枠フレーム８の前方を車幅方向に横切って配置されている。 枠 Furthermore, frame frames 8 for supporting heat-dissipating parts such as outdoor heat exchangers and fans are attached to the front ends of the left and right front side frames 2. The frame 8 is formed in a substantially rectangular shape when viewed from the front. The frame 8 is disposed in a central region in the vehicle width direction at the front of the vehicle body. The bumper beam 7 is arranged across the front of the frame 8 in the vehicle width direction.
　枠フレーム８は、左右の縦フレーム部８ａと、左右の縦フレーム部８ａの上端部同士を連結する上フレーム部８ｂと、左右の縦フレーム部８ａの下端部同士を連結する下フレーム部８ｃと、を有する。室外熱交換器やファン等の放熱部品は、枠フレーム８の開口の内側、若しくは、内側後方に配置されている。 The frame 8 includes left and right vertical frame portions 8a, an upper frame portion 8b connecting upper end portions of the left and right vertical frame portions 8a, and a lower frame portion 8c connecting lower end portions of the left and right vertical frame portions 8a. And The heat radiating components such as the outdoor heat exchanger and the fan are arranged inside or behind the opening of the frame 8.
　図４は、バンパービーム７の図２のＩＶ－ＩＶ線に沿う断面図であり、図５は、バンパービーム７の右側寄り部分を後斜め上方から見た図である。また、図６は、バンパービーム７の車幅方向の中央領域を背部側（後方側）から見た図である。
　バンパービーム７は、左右両側部が第１エクステンション５と第２エクステンション６を介して左右の対応するフロントサイドフレーム２とロアメンバ３（車体左右の側部フレーム部材）に結合されるビーム本体部９と、ビーム本体部９の車幅方向の中央領域に一体に取り付けられた拡張部１０と、を有する。拡張部１０は、例えば、高張力鋼板等の硬質のプレート材によって形成されている。 FIG. 4 is a cross-sectional view of the bumper beam 7 taken along the line IV-IV in FIG. 2, and FIG. 5 is a view of the right side portion of the bumper beam 7 viewed obliquely from above at the rear. FIG. 6 is a view of the central region of the bumper beam 7 in the vehicle width direction as viewed from the back side (rear side).
The bumper beam 7 includes a beam main body 9 whose left and right sides are coupled to the corresponding left and right front side frames 2 and the lower member 3 (left and right side frame members) via the first extension 5 and the second extension 6. And an extended portion 10 integrally attached to a central region of the beam main body 9 in the vehicle width direction. The extension portion 10 is formed of, for example, a hard plate material such as a high-tensile steel plate.
　ビーム本体部９は、車体後方側に開口する略ハット状の断面形状に形成され、その断面が車幅方向に亙って延出している。ビーム本体部９の車幅方向の中央領域は、略一定の上下幅に形成されている。拡張部１０は、ビーム本体部９よりも上下方向に長く延びている。 The beam main body 9 is formed in a substantially hat-shaped cross-section opening to the rear side of the vehicle body, and the cross-section extends in the vehicle width direction. The central region of the beam main body 9 in the vehicle width direction is formed with a substantially constant vertical width. The extension 10 extends vertically longer than the beam main body 9.
　拡張部１０は、図４に示すように、ビーム本体部９の前面（車体前後方向の外側部位）に結合されるベース部１０ｂと、ベース部１０ｂの上端から車体後方側に傾斜しつつ上方に延びる上方延出部１０ｕと、ベース部１０ｂの下端から車体後方側に傾斜しつつ下方に延びる下方延出部１０ｌと、を有している。ベース部１０ｂは、ビーム本体部９の前面（車体前後方向の外側面）を覆い、上方延出部１０ｕと下方延出部１０ｌは、ビーム本体部９の上面と下面とをそれぞれ覆う。拡張部１０は、ビーム本体部９の車体前後方向の外側面と、上下面とを覆うビーム保護部材を構成している。 As shown in FIG. 4, the extension portion 10 includes a base portion 10 b coupled to a front surface (an outer portion in the vehicle front-rear direction) of the beam main body portion 9, and an upper portion inclined upward from the upper end of the base portion 10 b toward the vehicle rear side. It has an upper extension 10u that extends, and a lower extension 10l that extends downward from the lower end of the base 10b while being inclined rearward of the vehicle body. The base portion 10b covers the front surface (outer surface in the vehicle body front-rear direction) of the beam main body portion 9, and the upper extension portion 10u and the lower extension portion 101 cover the upper surface and the lower surface of the beam main body portion 9, respectively. The extension portion 10 constitutes a beam protection member that covers the outer surface of the beam main body 9 in the vehicle longitudinal direction and the upper and lower surfaces.
　また、図４に示すように、ビーム本体部９の車幅方向の中央領域は、上下一対のフランジ部９ｆを有している。これらのフランジ部９ｆは、ビーム本体部９の上下の各水平壁の車体後方側の端部から上方と下方にそれぞれ屈曲して形成されている。ビーム本体部９の上側のフランジ部９ｆは、略Ｚ状断面の支持プレート１１ｕを介して拡張部１０の上方延出部１０ｕの背面に連結されている。ビーム本体部９の下側のフランジ部９ｆは、略Ｚ状断面の支持プレート１１ｌを介して拡張部１０の下方延出部１０ｌの背面に連結されている。支持プレート１１ｕ，１１ｌは、ビーム本体部９と各延出部（上方延出部１０ｕ，下方延出部１０ｌ）を連結する延出部支持部材を構成している。 As shown in FIG. 4, the central region of the beam main body 9 in the vehicle width direction has a pair of upper and lower flanges 9f. These flange portions 9f are formed by bending upward and downward from the rear end portions of the upper and lower horizontal walls of the beam main body 9, respectively. The upper flange portion 9f of the beam main body 9 is connected to the rear surface of the upwardly extending portion 10u of the extension portion 10 via a support plate 11u having a substantially Z-shaped cross section. The lower flange portion 9f of the beam main body 9 is connected to the rear surface of the lower extension portion 10l of the extension portion 10 via a support plate 11l having a substantially Z-shaped cross section. The support plates 11u and 11l constitute an extension support member that connects the beam main body 9 and each extension (upper extension 10u and lower extension 10l).
　上側の支持プレート１１ｕは、上方延出部１０ｕの近傍部で上方側に屈曲して延びる接合フランジ１１ｕｆを有し、その接合フランジ１１ｕｆが拡張部１０の上方延出部１０ｕの上端側の背面に溶接等によって接合されている。同様に、下側の支持プレート１１ｌは、下方延出部１０ｌの近傍部で下方側に屈曲して延びる接合フランジ１１ｌｆを有し、その接合フランジ１１ｌｆが拡張部１０の下方延出部１０ｌの下端側の背面に溶接等によって接合されている。上側の支持プレート１１ｕと下側の支持プレート１１ｌは、略同一形状の部品によって構成されている。上側の支持プレート１１ｕと下側の支持プレート１１ｌは、上下を反転させて共通の部品を用いることができる。 The upper support plate 11u has a joining flange 11uf that bends and extends upward in the vicinity of the upper extending portion 10u, and the joining flange 11uf is provided on the rear surface on the upper end side of the upper extending portion 10u of the extension portion 10. They are joined by welding or the like. Similarly, the lower support plate 11l has a joining flange 11lf that bends and extends downward in the vicinity of the lower extension 10l, and the joining flange 11lf is connected to the lower end of the lower extension 10l of the extension 10. It is joined to the back of the side by welding or the like. The upper support plate 11u and the lower support plate 11l are constituted by components having substantially the same shape. The upper support plate 11u and the lower support plate 11l can be turned upside down to use common parts.
　また、上側の支持プレート１１ｕと下側の支持プレート１１ｌの後部側の端縁は、ビーム本体部９の後方側において、横長の長方形状の連結プレート１２によって相互に連結されている。なお、上側の支持プレート１１ｕと連結プレート１２の上縁部とビーム本体部９の上側のフランジ部９ｆは、三枚重ねの状態で溶接固定しても良い。同様に、下側の支持プレート１１ｌと連結プレート１２の下縁部とビーム本体部９の上側のフランジ部９ｆも、三枚重ねの状態で溶接固定しても良い。 {Circle around (4)} The rear edges of the upper support plate 11u and the lower support plate 11l are connected to each other by a horizontally long rectangular connection plate 12 on the rear side of the beam main body 9. The upper edge of the upper support plate 11u, the upper edge of the connection plate 12, and the upper flange 9f of the beam main body 9 may be welded and fixed in a three-layered state. Similarly, the lower edge of the lower support plate 11l, the lower edge of the connection plate 12, and the upper flange 9f of the beam main body 9 may be welded and fixed in a three-layered state.
　連結プレート１２には、図５，図６に示すように、上下方向に略沿って延出する補強ビード１３が形成されている。補強ビード１３は、連結プレート１２の長手方向に離間して複数設けられている。 補強 As shown in FIGS. 5 and 6, the connection plate 12 is formed with a reinforcing bead 13 extending substantially along the vertical direction. A plurality of reinforcing beads 13 are provided apart from each other in the longitudinal direction of the connection plate 12.
　ここで、バンパービーム７の拡張部１０は、図２に示すように、枠フレーム８の左右の縦フレーム部８ａ間の前方領域（車体前後方向の外側領域）を覆うように配置されている。具体的には、車両の前面視で、拡張部１０の左右の端部が、左右の対応する縦フレーム部ａに一部重なるように配置されている。 Here, as shown in FIG. 2, the extended portion 10 of the bumper beam 7 is disposed so as to cover a front region (outer region in the vehicle longitudinal direction) between the left and right vertical frame portions 8 a of the frame 8. Specifically, when viewed from the front of the vehicle, the left and right ends of the extension portion 10 are arranged so as to partially overlap the corresponding left and right vertical frame portions a.
　また、拡張部１０は、図２に示すように、下方延出部１０ｌの車幅方向外側の端部に段差状の切欠き部１４が設けられている。したがって、拡張部１０の下方延出部１０ｌの車幅方向の幅は、上方延出部１０ｕの車幅方向の幅よりも狭くなっている。拡張部１０の左右の切欠き部１４の背部側には、レーダやセンサ等の検知器１５が配置されている。
　なお、切欠き部１４は、下方延出部１０ｌの左右一方側の端部にのみ設けるようにしても良い。また、切欠き部１４は、上方延出部１０ｕの車幅方向外側の端部に設けることも可能である。 As shown in FIG. 2, the extended portion 10 is provided with a step-shaped notch 14 at the outer end in the vehicle width direction of the downwardly extending portion 101. Therefore, the width in the vehicle width direction of the lower extension 10l of the extension 10 is smaller than the width of the upper extension 10u in the vehicle width direction. A detector 15 such as a radar or a sensor is arranged behind the left and right cutouts 14 of the extension unit 10.
The notch 14 may be provided only at one of the left and right ends of the downward extension 10l. In addition, the notch 14 can be provided at the outer end in the vehicle width direction of the upper extension 10u.
　以上のように、本実施形態の車両の端部構造は、バンパービーム７が、左右のフロントサイドフレーム２やロアメンバ３に結合されるビーム本体部９と、ビーム本体部９の車幅方向中央領域において、ビーム本体部９よりも上下方向に長く延びる拡張部１０を有する。このため、車両前方から他の車両等が相対的に近接移動してくると、上下幅の広い拡張部１０で他の車両等から荷重を受け易くなる。拡張部１０は、ビーム本体部９に比較して上下幅が広いため、ビーム本体部９のみで荷重を受ける場合に比較して、荷重を広い面積で効率良く受け止めることができる。そして、本実施形態の車両１の端部構造では、拡張部１０の広い面積で荷重を受けることができることから、荷重がバンパービーム７の局所に集中するのを防ぐことができる。したがって、本実施形態の端部構造を採用した場合には、車体前方からの衝撃荷重の入力時に局所的な荷重集中を回避しつつ、車体前方から入力される衝撃荷重を拡張部１０で効率良く受け止めることができる。 As described above, the end structure of the vehicle according to the present embodiment includes a beam main body 9 in which the bumper beam 7 is coupled to the left and right front side frames 2 and the lower member 3, and a central region in the vehicle width direction of the beam main body 9. Has an extended portion 10 that extends longer in the vertical direction than the beam body 9. Therefore, when another vehicle or the like relatively moves closer from the front of the vehicle, it becomes easier to receive a load from the other vehicle or the like in the extended portion 10 having a large vertical width. Since the extension portion 10 has a wider width in the vertical direction than the beam main body 9, the load can be efficiently received over a wider area than when the load is received only by the beam main body 9. In the end structure of the vehicle 1 according to the present embodiment, the load can be received over a wide area of the extension portion 10, so that the load can be prevented from being concentrated on the bumper beam 7. Therefore, when the end structure according to the present embodiment is adopted, the impact load input from the front of the vehicle body can be efficiently processed by the extension unit 10 while avoiding local load concentration when the impact load is input from the front of the vehicle body. I can take it.
　また、本実施形態の車両１の端部構造では、拡張部１０に入力された衝撃荷重を、ビーム本体部９を介して左右のフロントサイドフレーム２やロアメンバ３に伝達することができるため、車室の前方に位置される部材が車室方向に変位するのを抑制することができる。 Further, in the end structure of the vehicle 1 according to the present embodiment, the impact load input to the extension portion 10 can be transmitted to the left and right front side frames 2 and the lower members 3 via the beam main body 9, Displacement of the member located in front of the compartment in the vehicle compartment direction can be suppressed.
　また、本実施形態の車両１の端部構造では、拡張部１０がビーム本体部９と別体部品によって構成され、別体部品である拡張部１０がビーム本体部９に対して結合されている。このため、拡張部１０を持たないバンパービームと、拡張部１０を持つバンパービーム７とで部品を共用することができる。したがって、本実施形態の構成を採用した場合には、部品の生産効率の向上を図ることができる。 Further, in the end structure of the vehicle 1 according to the present embodiment, the extension portion 10 is configured by a separate component from the beam main body portion 9, and the extension portion 10 that is a separate component is coupled to the beam main body portion 9. . Therefore, parts can be shared by the bumper beam having no extension 10 and the bumper beam 7 having the extension 10. Therefore, when the configuration of the present embodiment is adopted, it is possible to improve the production efficiency of parts.
　さらに、本実施形態の車両１の端部構造は、拡張部１０の下方延出部１０ｌの車幅方向の端部に切欠き部１４が設けられ、その切欠き部１４の背部側にレーダやセンサ等の検知器１５が設置されている。このため、車体前部の中央領域に、バンパービーム７の上下幅の広い拡張部１０を配置しても、不都合なく検知器１５を設置することができる。また、検知器１５を拡張部よりも車体後方側に配置することにより、車体前方からの荷重入力に対して検知器１５を保護することができる。 Further, in the end structure of the vehicle 1 of the present embodiment, a notch 14 is provided at an end in the vehicle width direction of the downward extension 10 l of the extension 10, and a radar or the like is provided on the back side of the notch 14. A detector 15 such as a sensor is provided. Therefore, the detector 15 can be installed without any inconvenience even if the extended portion 10 having a large vertical width of the bumper beam 7 is arranged in the central region in the front part of the vehicle body. Further, by arranging the detector 15 on the rear side of the vehicle body with respect to the extended portion, the detector 15 can be protected against a load input from the front of the vehicle body.
　また、本実施形態の車両１の端部構造は、バンパービーム７の拡張部１０が枠フレーム８の左右の縦フレーム部８ａ間の前方領域を覆うように配置されている。このため、車体前方から入力される衝撃荷重に対し、室外熱交換器やファン等の放熱部品を拡張部１０によって保護することができる。 In addition, the end structure of the vehicle 1 according to the present embodiment is arranged such that the extended portion 10 of the bumper beam 7 covers a front region between the left and right vertical frame portions 8a of the frame 8. For this reason, the radiating components such as the outdoor heat exchanger and the fan can be protected by the extension portion 10 against an impact load input from the front of the vehicle body.
　また、本実施形態の車両１の端部構造は、拡張部１０がベース部１０ｂと上方延出部１０ｕと下方延出部１０ｌとを有し、ビーム本体部９に連結された支持プレート１１ｕ，１１ｌの接合フランジ１１ｕｆ，１１ｌｆが、上方延出部１０ｕと下方延出部１０ｌの各背面に接合されている。この場合、支持プレート１１ｕ，１１ｌの接合フランジ１１ｕｆ，１１ｌｆが、拡張部１０上の上方延出部１０ｕと下方延出部１０ｌの各背面を安定して支持することができるため、車両前方からの衝撃荷重の入力時に、上方延出部１０ｕや下方延出部１０ｌの倒れを規制することができる。したがって、本実施形態の車両１の端部構造を採用した場合には、車体前方から入力される衝撃荷重を拡張部１０によってより効率良く受けとめることができる。 In the end structure of the vehicle 1 of the present embodiment, the extension portion 10 has a base portion 10b, an upper extension portion 10u, and a lower extension portion 10l, and the support plates 11u, 11 l of joining flanges 11 uf and 11 lf are joined to the respective rear surfaces of the upper extension 10 u and the lower extension 10 l. In this case, the joining flanges 11uf and 11lf of the support plates 11u and 11l can stably support the rear surfaces of the upper extending portion 10u and the lower extending portion 10l on the extension portion 10, so that the front surface of the vehicle can be prevented. When an impact load is input, the falling of the upper extension 10u and the lower extension 10l can be restricted. Therefore, when the end structure of the vehicle 1 of the present embodiment is adopted, the impact load input from the front of the vehicle body can be more efficiently received by the extension portion 10.
　加えて、本実施形態では、上方延出部１０ｕと下方延出部１０ｌの各背面を支持する上下の支持プレート１１ｕ，１１ｌが略同一形状の部品によって構成されているため、上下の支持プレート１１ｕ，１１ｌで共通の部品を使用することができる。したがって、この構成を採用した場合には、部品の生産効率を高めることができる。
　また、本実施形態の構造では、上下の支持プレート１１ｕ，１１ｌが上下で対称に配置されているため、拡張部１０に車体前方から衝撃荷重が入力されたときに、上下の支持プレート１１ｕ，１１ｌの協働によって衝撃荷重を安定して受け止めることができる。 In addition, in the present embodiment, since the upper and lower support plates 11u and 11l for supporting the respective back surfaces of the upper extension 10u and the lower extension 10l are formed by components having substantially the same shape, the upper and lower support plates 11u are formed. , 11l can use common components. Therefore, when this configuration is employed, the production efficiency of parts can be increased.
Further, in the structure of the present embodiment, since the upper and lower support plates 11u and 11l are arranged symmetrically in the vertical direction, when an impact load is input to the extension portion 10 from the front of the vehicle body, the upper and lower support plates 11u and 11l are provided. Can stably receive the impact load.
　また、本実施形態の車両１の端部構造は、上下の支持プレート１１ｕ，１１ｌの後部側の端縁が、ビーム本体部９の後方側において、連結プレート１２によって相互に連結され、上下方向に略沿って延びる複数の補強ビード１３が連結プレート１２に設けられている。したがって、本実施形態の車両１の端部構造では、補強ビード１３によって上下方向の剛性を高められた連結プレート１２により、拡張部１０の上方延出部１０ｕや下方延出部１０ｌの倒れを規制することができる。 Further, in the end structure of the vehicle 1 of the present embodiment, the rear edges of the upper and lower support plates 11u and 11l are connected to each other by the connection plate 12 on the rear side of the beam main body 9 and are vertically connected. A plurality of reinforcing beads 13 extending substantially along are provided on the connecting plate 12. Therefore, in the end structure of the vehicle 1 of the present embodiment, the connection plate 12 whose rigidity in the vertical direction is increased by the reinforcing bead 13 restricts the upward extension 10u and the downward extension 10l of the extension 10 from falling. can do.
　図７は、他の実施形態の車両１の前部の骨格部を示す正面図である
　図７に示す車両の端部構造は、基本的な構成は上記の実施形態とほぼ同様であるが、バンパービーム１０７の拡張部１１０が左右のロアメンバ３の前端部を超える範囲まで車幅方向外側に延びている。 FIG. 7 is a front view showing a skeletal portion of a front portion of the vehicle 1 of another embodiment. The basic structure of the end structure of the vehicle shown in FIG. 7 is substantially the same as that of the above embodiment. The extended portion 110 of the bumper beam 107 extends outward beyond the front end portions of the left and right lower members 3 in the vehicle width direction.
　本実施形態の車両１の端部構造では、上下方向の張り出し幅の広い拡張部１１０が、左右の外側のロアメンバ３の前端部位置を超える範囲まで延びているため、車体前方から入力される衝撃荷重を拡張部１１０によってより安定して受け止めることができる。特に、他の車両等が車幅方向の中央よりも外側に偏った位置に当接するときには、衝撃荷重を拡張部１１０の広い面積で安定的に受け止め、車幅方向外側のフロントサイドフレーム２やロアメンバ３に支持させることができる。 In the end structure of the vehicle 1 according to the present embodiment, the extended portion 110 having a large vertical overhang extends to a range exceeding the front end position of the left and right outer lower members 3. The load can be more stably received by the extension portion 110. In particular, when another vehicle or the like comes into contact with a position deviated outward from the center in the vehicle width direction, the impact load is stably received by the wide area of the extension portion 110, and the front side frame 2 and the lower member on the vehicle width direction outer side. 3 can be supported.
　なお、本発明は上記の実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の設計変更が可能である。例えば、上記の実施形態では、車両の前部の骨格部に本発明に係る車両の端部構造を適用しているが、本発明に係る車両の端部構造は、車両の後部の骨格部にも同様に適用することが可能である。また、バンパービームの拡張部は、ビーム本体部と一体に形成しても良い。 The present invention is not limited to the above embodiment, and various design changes can be made without departing from the gist of the present invention. For example, in the above embodiment, the end structure of the vehicle according to the present invention is applied to the skeleton of the front part of the vehicle, but the end structure of the vehicle according to the present invention is applied to the skeleton of the rear part of the vehicle. Can be similarly applied. Further, the extension of the bumper beam may be formed integrally with the beam main body.
　２　　フロントサイドフレーム（第１フレーム，側部フレーム部材）
　３　　ロアメンバ（第２フレーム，側部フレーム部材）
　７，１０７　　バンパービーム
　８　　枠フレーム
　８ａ　　縦フレーム部
　９　　ビーム本体部
　１０，１１０　　拡張部（ビーム保護部材）
　１０ｂ　　ベース部
　１０ｕ　　上方延出部（延出部）
　１０ｌ　　下方延出部（延出部）
　１１ｕ，１１ｌ　　支持プレート（延出部支持部材）
　１１ｕｆ，１１ｌｆ　　接合フランジ
　１２　　連結プレート
　１３　　補強ビード 2 Front side frame (first frame, side frame members)
3 Lower member (second frame, side frame member)
7,107 Bumper beam 8 Frame 8a Vertical frame 9 Beam main body 10,110 Extension (beam protection member)
10b Base part 10u Upper extension part (extension part)
10l downward extension (extension)
11u, 11l Support plate (extension part support member)
11uf, 11lf Joint flange 12 Connection plate 13 Reinforcement bead

Claims (9)

  1. 　車体の前部または後部において、車体前後方向に略沿って延びる左右の側部フレーム部材と、
    　車幅方向に略沿って延び、左右の前記側部フレーム部材に跨って支持されるバンパービームと、を備え、
    　前記バンパービームは、
    　左右の前記側部フレーム部材に結合されるビーム本体部と、
    　少なくとも前記ビーム本体部の車幅方向中央領域において、前記ビーム本体部よりも上下方向に長く延びる拡張部と、を有することを特徴とする車体の端部構造。     Right and left side frame members extending substantially along the vehicle front-rear direction at the front or rear of the vehicle body;
    A bumper beam extending substantially along the vehicle width direction and supported across the left and right side frame members,
    The bumper beam is
    A beam body coupled to the left and right side frame members;
    An end portion of a vehicle body, comprising: an extension portion extending vertically longer than the beam main body at least in a central region of the beam main body in the vehicle width direction.
  2. 　前記拡張部は、前記ビーム本体部と別体部品によって構成され、前記ビーム本体部に結合されていることを特徴とする請求項１に記載の車体の端部構造。 The end structure of the vehicle body according to claim 1, wherein the extension portion is formed by a separate component from the beam main body, and is coupled to the beam main body.
  3. 　前記拡張部は、前記ビーム本体部よりも上方に延びる上方延出部と、前記ビーム本体部よりも下方に延びる下方延出部と、を有し、
    　前記下方延出部と前記上方延出部のいずれか一方の車幅方向外側の端部に切欠き部が設けられていることを特徴とする請求項１または２に記載の車体の端部構造。     The extension portion has an upper extension portion extending above the beam main body portion, and a lower extension portion extending below the beam main body portion,
    The end structure of a vehicle body according to claim 1 or 2, wherein a cutout portion is provided at an outer end in a vehicle width direction of one of the lower extension portion and the upper extension portion. .
  4. 　車両前部の車幅方向中央領域において、放熱部品を支持する略矩形状の枠フレームをさらに備え、
    　前記拡張部は、前記枠フレームの左右の縦フレーム部間の車体前後方向の外側領域を覆うように配置されていることを特徴とする請求項１～３のいずれか１項に記載の車体の端部構造。     In a vehicle width direction central region at a front portion of the vehicle, the vehicle further includes a substantially rectangular frame that supports a heat radiation component,
    The vehicle body according to any one of claims 1 to 3, wherein the extension portion is disposed so as to cover an outer region in a vehicle front-rear direction between left and right vertical frame portions of the frame frame. End structure.
  5. 　左右の各前記側部フレーム部材は、
    　車室領域から前方または後方に延びる第１フレームと、
    　車室よりも車幅方向外側領域から前方または後方に延びる第２フレームと、を備え、
    　前記拡張部は、左右の前記第２フレームの車体前後方向外側位置まで車幅方向に延びていることを特徴とする請求項１～４のいずれか１項に記載の車体の端部構造。     Each of the left and right side frame members is
    A first frame extending forward or rearward from the vehicle compartment area;
    A second frame extending forward or rearward from the vehicle width direction outside region of the vehicle compartment,
    The end structure of a vehicle body according to any one of claims 1 to 4, wherein the extension portion extends in a vehicle width direction to positions outside the left and right second frames in the vehicle longitudinal direction.
  6. 　前記拡張部は、
    　前記ビーム本体部の車体前後方向の外側部位に結合されるベース部と、
    　前記ベース部から上方と下方の少なくとも一方に延びる延出部と、を有し、
    　前記バンパービームは、前記ビーム本体部と前記延出部を連結する延出部支持部材をさらに備え、
    　前記延出部支持部材は、前記延出部の車体前後方向の内側面に接合される接合フランジを有することを特徴とする請求項１～４のいずれか１項に記載の車体の端部構造。     The extension unit includes:
    A base portion coupled to an outer portion of the beam main body portion in the vehicle longitudinal direction,
    An extending portion extending from the base portion to at least one of an upper side and a lower side,
    The bumper beam further includes an extension support member that connects the beam main body and the extension.
    The end structure of a vehicle body according to any one of claims 1 to 4, wherein the extension portion support member has a joining flange joined to an inner side surface of the extension portion in the vehicle longitudinal direction. .
  7. 　前記延出部は、前記ベース部から上方に延びる上方延出部と、前記ベース部から下方に延びる下方延出部とからなり、
    　前記上方延出部に接合される前記延出部支持部材と、前記下方延出部に接合される前記延出部支持部材は、略同一形状の部品によって構成されていることを特徴とする請求項６に記載の車体の端部構造。     The extension portion includes an upper extension portion extending upward from the base portion, and a lower extension portion extending downward from the base portion,
    The extension support member joined to the upper extension portion and the extension support member joined to the lower extension portion are configured by components having substantially the same shape. Item 7. An end structure of a vehicle body according to Item 6.
  8. 　前記延出部は、前記ベース部から上方に延びる上方延出部と、前記ベース部から下方に延びる下方延出部とからなり、
    　前記上方延出部に接合される前記延出部支持部材と、前記下方延出部に接合される前記延出部支持部材とは、前記ビーム本体部の車体前後方向の内側において、連結プレートによって相互に連結され、
    　前記連結プレートには、上下方向に略沿う補強ビードが形成されていることを特徴とする請求項６または７に記載の車体の端部構造。     The extension portion includes an upper extension portion extending upward from the base portion, and a lower extension portion extending downward from the base portion,
    The extension support member joined to the upper extension and the extension support member joined to the lower extension are connected by a connection plate inside the beam body in the vehicle longitudinal direction. Interconnected,
    The end structure of a vehicle body according to claim 6, wherein a reinforcing bead is formed in the connection plate along a vertical direction.
  9. 　車体の前部または後部において、車体前後方向に略沿って延びる左右の側部フレーム部材と、
    　車幅方向に略沿って延び、左右の前記側部フレーム部材に跨って支持されるバンパービームと、を備え、
    　前記バンパービームは、
    　左右の前記側部フレーム部材に結合されるビーム本体部と、
    　前記ビーム本体部に取り付けられて、前記ビーム本体部の車体前後方向の外側面と、前記ビーム本体部の上下面を覆うビーム保護部材と、有することを特徴とする車体の端部構造。     Right and left side frame members extending substantially along the vehicle front-rear direction at the front or rear of the vehicle body;
    A bumper beam extending substantially along the vehicle width direction and supported across the left and right side frame members,
    The bumper beam is
    A beam body coupled to the left and right side frame members;
    An end structure of a vehicle body, comprising: an outer side surface of the beam main body portion in a vehicle longitudinal direction, which is attached to the beam main body portion, and a beam protection member that covers upper and lower surfaces of the beam main body portion.
PCT/JP2018/032759 2018-09-04 2018-09-04 End part structure for vehicle body WO2020049635A1 (en)

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