JP2020138683A

JP2020138683A - Vehicular hood

Info

Publication number: JP2020138683A
Application number: JP2019037323A
Authority: JP
Inventors: 正直堀内; Masanao Horiuchi; 慎吾川野; Shingo Kawano; 山本　賢治; Kenji Yamamoto; 賢治山本
Original assignee: Mitsubishi Motors Corp
Current assignee: Mitsubishi Motors Corp
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2020-09-03
Anticipated expiration: 2039-03-01
Also published as: JP7338170B2; CN212685736U

Abstract

To control a deformed shape of a reinforcement member and improve cushioning performance in a vehicular hood.SOLUTION: A vehicular hood 10 comprises a reinforcement member 3 is expanded between an outer panel 1 and an inner panel 2, and further comprises a leg 6. The leg 6 is a part which is planarly extended from a circumferential end part of the reinforcement member 3 and is fixed to the inner panel 2, and has an end side which connects the reinforcement member 3 and the inner panel 2. Further, the leg 6 has a first reinforcement part 31 and a second reinforcement part 32. The first reinforcement part 31 is such a part that a plate surface is bent at the end side. The second reinforcement part 32 is such a part that a plate surface is bent at the end side at a position nearer to the inner panel 2 with respect to the first reinforcement part 31, and is formed discontinuously with the first reinforcement part 31.SELECTED DRAWING: Figure 3

Description

本発明は、アウターパネルとインナーパネルとの間に補強部材が展開された車両用フードに関する。 The present invention relates to a vehicle hood in which a reinforcing member is deployed between an outer panel and an inner panel.

従来、車両のコンパートメント（エンジンルームやモータールームなど）の上面を覆う車両用フードにおいて、アウターパネルとインナーパネルとの間に補強部材を挿入した構造が知られている。例えば、インナーパネルにアーチ状のブラケットを固定し、ブラケットの板面をアウターパネルの裏面に沿って展開させた構造が提案されている（特許文献１参照）。また、アウターパネルの裏面に板状の補強部材を取り付けて剛性を高めた構造も提案されている（特許文献２参照）。 Conventionally, in a vehicle hood that covers the upper surface of a vehicle compartment (engine room, motor room, etc.), a structure in which a reinforcing member is inserted between an outer panel and an inner panel is known. For example, a structure has been proposed in which an arch-shaped bracket is fixed to an inner panel and the plate surface of the bracket is developed along the back surface of the outer panel (see Patent Document 1). Further, a structure in which a plate-shaped reinforcing member is attached to the back surface of the outer panel to increase the rigidity has also been proposed (see Patent Document 2).

特開2006-306237号公報Japanese Unexamined Patent Publication No. 2006-306237 特開2016-010995号公報Japanese Unexamined Patent Publication No. 2016-010995

車両用フードに外力が作用したときのエネルギーは、アウターパネルや補強部材の変形によって吸収される。したがって、その変形形状を制御することができれば、緩衝性能が向上しうる。一方、既存の車両用フードはこのような点が十分に考慮されたものとはいえず、改良の余地がある。例えば、補強部材をインナーパネルに固定するための構造に工夫を施すことで、さらなる緩衝性能の改善が期待される。 The energy when an external force acts on the vehicle hood is absorbed by the deformation of the outer panel and the reinforcing member. Therefore, if the deformed shape can be controlled, the cushioning performance can be improved. On the other hand, the existing vehicle hood cannot be said to fully consider such a point, and there is room for improvement. For example, by devising a structure for fixing the reinforcing member to the inner panel, further improvement in cushioning performance is expected.

本件の目的の一つは、上記のような課題に鑑みて創案されたものであり、車両用フードの補強部材の変形形状を制御して緩衝性能を向上させることである。なお、この目的に限らず、後述する「発明を実施するための形態」に示す各構成から導き出される作用効果であって、従来の技術では得られない作用効果を奏することも、本件の他の目的として位置付けることができる。 One of the purposes of this case was devised in view of the above problems, and is to control the deformed shape of the reinforcing member of the vehicle hood to improve the cushioning performance. Not limited to this purpose, it is also possible to exert an action / effect derived from each configuration shown in the “mode for carrying out the invention” described later, which cannot be obtained by the conventional technique. It can be positioned as a purpose.

開示の車両用フードは、アウターパネルとインナーパネルとの間に補強部材が展開される車両用フードである。この車両用フードは、前記補強部材の周囲の端部から面状に延設されて前記インナーパネルに固定され、前記補強部材と前記インナーパネルとの間をつなぐ端辺を有する脚部を備える。前記脚部は、前記端辺にて板面を屈曲させてなる第一補強部と、前記端辺にて前記第一補強部よりも前記インナーパネルに近い位置で板面を屈曲させてなり、前記第一補強部とは不連続に形成された第二補強部とを有する。 The disclosed vehicle hood is a vehicle hood in which a reinforcing member is deployed between the outer panel and the inner panel. The vehicle hood includes a leg portion that extends in a plane shape from an end portion around the reinforcing member, is fixed to the inner panel, and has an end edge that connects the reinforcing member and the inner panel. The legs are formed by bending the plate surface at a position closer to the inner panel than the first reinforcing portion at the end side and a first reinforcing portion formed by bending the plate surface at the end side. The first reinforcing portion has a second reinforcing portion formed discontinuously.

補強部材の脚部の端辺にて、第二補強部を第一補強部と不連続に形成することで、外力作用時に第一補強部と第二補強部との間を頂点とした山折れの変形を促すことができる。これにより、アウターパネルとインナーパネルとに囲まれた空間を効率よく使って、補強部材の変形のストロークを大きくすることができ、車両用フードの緩衝性能を向上させることができる。 By forming the second reinforcing part discontinuously with the first reinforcing part at the end of the leg of the reinforcing member, a mountain fold with the apex between the first reinforcing part and the second reinforcing part when an external force is applied. Can promote the transformation of. As a result, the space surrounded by the outer panel and the inner panel can be efficiently used to increase the deformation stroke of the reinforcing member, and the cushioning performance of the vehicle hood can be improved.

実施例としての車両用フードの分解斜視図である。It is an exploded perspective view of the hood for a vehicle as an Example. 補強部材の上面図である。It is a top view of the reinforcing member. 補強部材の前脚部を拡大して示す斜視図である。It is a perspective view which shows the front leg part of a reinforcing member enlarged. (A)は前脚部の側面図であり、(B)〜(D)は前脚部の断面図である。(A) is a side view of the front leg, and (B) to (D) are cross-sectional views of the front leg. (A),(B)は外力による前脚部の変形を説明するための断面図である。(A) and (B) are cross-sectional views for explaining the deformation of the front leg due to an external force.

［１．車両用フード］
図１〜図５を参照して、実施例としての車両用フード１０を説明する。この車両用フード１０は、車両の前部に設けられるコンパートメント（エンジンルームやモータールームなどの車載品収容室）の上面を被覆する部材である。コンパートメントの後端部近傍には、車体に対して車両用フード１０を開閉可能に枢支するヒンジや、車両用フード１０を開放方向に付勢するスプリングが設けられる。また、コンパートメントの前端部近傍には、車両用フード１０の閉鎖状態を維持するためのフードロック装置や、開放状態を保持させるのに用いられるサポートロッドなどが設けられる。 [1. Vehicle hood]
A vehicle hood 10 as an embodiment will be described with reference to FIGS. 1 to 5. The vehicle hood 10 is a member that covers the upper surface of a compartment (an in-vehicle product accommodating room such as an engine room or a motor room) provided in the front part of the vehicle. Near the rear end of the compartment, a hinge that pivotally supports the vehicle hood 10 with respect to the vehicle body and a spring that urges the vehicle hood 10 in the opening direction are provided. Further, in the vicinity of the front end portion of the compartment, a hood lock device for maintaining the closed state of the vehicle hood 10 and a support rod used for holding the open state are provided.

図１に示すように、車両用フード１０は、アウターパネル１（フードアウターパネル）とインナーパネル２（フードインナーパネル）との間に補強部材３（フードロックリンフォースアッパー）が展開された構造を持つ。アウターパネル１は車両用フード１０の外表面をなす部材であり、表側の板面には意匠的な塗装や凹凸加工が施される。また、アウターパネル１の前部には、コンパートメント内に導入される冷却風が通過する開口部が形成されたグリル補強部１１が設けられる。グリル補強部１１には、車両のグリル１２が取り付けられる。車両のヘッドランプ１３は、コンパートメントよりも前方において、車体に取り付けられる。ヘッドランプ１３の位置は、車両用フード１０の閉鎖状態において、グリル１２の左右側方となる位置に設定される。 As shown in FIG. 1, the vehicle hood 10 has a structure in which a reinforcing member 3 (hood lock reinforcement upper) is deployed between the outer panel 1 (hood outer panel) and the inner panel 2 (hood inner panel). Have. The outer panel 1 is a member forming the outer surface of the vehicle hood 10, and the front plate surface is subjected to design painting or uneven processing. Further, the front portion of the outer panel 1 is provided with a grill reinforcing portion 11 having an opening through which the cooling air introduced into the compartment passes. A vehicle grill 12 is attached to the grill reinforcing portion 11. The vehicle headlamp 13 is attached to the vehicle body in front of the compartment. The position of the headlamp 13 is set to a position on the left and right sides of the grill 12 in the closed state of the vehicle hood 10.

インナーパネル２は、アウターパネル１に対して所定の間隔をあけて、その下方に配置され、アウターパネル１の外縁部に対して接合される。インナーパネル２の板面には、強度や剛性を高めるための凹凸が設けられる。本実施形態のインナーパネル２には、縁部１４と梁部１５とが設けられる。縁部１４は、インナーパネル２の左右両端の縁に沿って形成されたほぼ水平な部位であり、補強用のフランジとして機能する。また梁部１５は、板面を下方にへこませるとともに、そのへこみを縁部１４の内側に沿って車両前後方向に連ねた部位であり、インナーパネル２の曲げ剛性を高める構造断面として機能する。 The inner panel 2 is arranged below the outer panel 1 at a predetermined interval, and is joined to the outer edge portion of the outer panel 1. The plate surface of the inner panel 2 is provided with irregularities for increasing strength and rigidity. The inner panel 2 of the present embodiment is provided with an edge portion 14 and a beam portion 15. The edge portion 14 is a substantially horizontal portion formed along the edges of the left and right ends of the inner panel 2, and functions as a reinforcing flange. Further, the beam portion 15 is a portion in which the plate surface is dented downward and the dents are connected in the front-rear direction of the vehicle along the inside of the edge portion 14, and functions as a structural cross section for increasing the bending rigidity of the inner panel 2. ..

補強部材３は、アウターパネル１とインナーパネル２とで囲まれた空間内において、アウターパネル１の板面に沿って面状に配置される。補強部材３の材質は、アルミ合金（例えば、Al-Mg系合金やAl-Mg-Si系合金など）である。補強部材３は、アウターパネル１やインナーパネル２に対して固定される。例えば、本実施形態の補強部材３は、アウターパネル１に対してマスチック接着剤で固定されるとともに、インナーパネル２に対して溶接固定される。 The reinforcing member 3 is arranged in a plane shape along the plate surface of the outer panel 1 in the space surrounded by the outer panel 1 and the inner panel 2. The material of the reinforcing member 3 is an aluminum alloy (for example, an Al-Mg-based alloy, an Al-Mg-Si-based alloy, or the like). The reinforcing member 3 is fixed to the outer panel 1 and the inner panel 2. For example, the reinforcing member 3 of the present embodiment is fixed to the outer panel 1 with a mastic adhesive and fixed to the inner panel 2 by welding.

車両の上面視における補強部材３の全体形状は、弓なりに湾曲したブーメラン形状に準えられ、車幅方向の中央部付近が車両前方に飛び出すようなレイアウトで配置される。また、補強部材３の形状は、車両の上面視で左右対称（鏡面対称）である。図２に示すように、本実施形態の補強部材３は、前方面部４と一対の後方面部５とを有する。前方面部４とは、補強部材３のうち車両前部に位置する半月状の部位である。また、後方面部５とは、その左右両端部のそれぞれから、車両後方かつ車幅方向外側に向かって延長された部位である。前方面部４と後方面部５との境界線を、図２中に一点鎖線で例示する。ただし、前方面部４及び後方面部５は一体に形成されており、これらの境界は便宜的に定めたものに過ぎない。 The overall shape of the reinforcing member 3 in the top view of the vehicle is similar to the boomerang shape curved in a bow shape, and is arranged so that the vicinity of the central portion in the vehicle width direction protrudes forward of the vehicle. The shape of the reinforcing member 3 is symmetrical (mirror-symmetrical) when viewed from above the vehicle. As shown in FIG. 2, the reinforcing member 3 of the present embodiment has a front surface portion 4 and a pair of rear surface portions 5. The front surface portion 4 is a crescent-shaped portion of the reinforcing member 3 located at the front portion of the vehicle. Further, the rear surface portion 5 is a portion extending rearward of the vehicle and outward in the vehicle width direction from each of the left and right end portions thereof. The boundary line between the front surface portion 4 and the rear surface portion 5 is illustrated by a alternate long and short dash line in FIG. However, the front surface portion 4 and the rear surface portion 5 are integrally formed, and their boundaries are merely defined for convenience.

補強部材３には、インナーパネル２に固定される三対の脚部６，７，８が設けられる。これらの脚部６，７，８は、補強部材３からその外側かつ下方に向かって斜めに延設される。以下、前方面部４に設けられる脚部を前脚部６と呼ぶ。また、後方面部５に設けられる脚部のうち、車両外側に位置するものを後脚部７と呼び、車両内側に位置するものを第二後脚部８と呼ぶ。 The reinforcing member 3 is provided with three pairs of legs 6, 7, and 8 fixed to the inner panel 2. These legs 6, 7, and 8 extend obliquely outward and downward from the reinforcing member 3. Hereinafter, the leg portion provided on the front surface portion 4 is referred to as a front leg portion 6. Further, among the legs provided on the rear surface portion 5, those located on the outside of the vehicle are referred to as rear legs 7, and those located on the inside of the vehicle are referred to as second rear legs 8.

前脚部６は、前方面部４の前端部であって、グリル補強部１１の左右両側方（グリル１２を避けた位置）に配置される。車両の上面視における前脚部６の位置は、図２に示すように、ヘッドランプ１３の裏側に相当する位置である。前脚部６の先端は、インナーパネル２の縁部１４に対して面接触した状態で固定され、例えばスポット溶接で固定される。車両の上面視で前方面部４から前脚部６が伸びる方向は、斜め前方（車両外側かつ前方へ向かう方向）とされる。 The front leg portion 6 is a front end portion of the front surface portion 4, and is arranged on both the left and right sides of the grill reinforcing portion 11 (positions avoiding the grill 12). As shown in FIG. 2, the position of the front leg portion 6 in the top view of the vehicle is a position corresponding to the back side of the headlamp 13. The tip of the front leg portion 6 is fixed in a state of surface contact with the edge portion 14 of the inner panel 2, and is fixed by spot welding, for example. The direction in which the front leg portion 6 extends from the front surface portion 4 in the top view of the vehicle is obliquely forward (the direction toward the outside and the front of the vehicle).

前方面部４の前端辺のうち左右の前脚部６によって挟まれた部分には、下方に向かって折り曲げられたフランジ１６が形成される。ただし、フランジ１６の左右両端部は、前脚部６に達する手前で途切れている。前方面部４の前端辺のうち、前脚部６に隣接する車両中央側の部位には、フランジ１６が形成されない。一方、前脚部６に隣接する車両外側の部位には、第二フランジ１７が形成される。第二フランジ１７は、前方面部４の左右側端辺を下方に向かって折り曲げて形成された部位であり、前脚部６の板面につながるように設けられる。第二フランジ１７の後端部は、後方面部５に達する手前で途切れている。 A flange 16 bent downward is formed on a portion of the front end side of the front surface portion 4 sandwiched between the left and right front leg portions 6. However, both left and right ends of the flange 16 are interrupted before reaching the front leg portion 6. The flange 16 is not formed on the front end side of the front surface portion 4 on the vehicle center side portion adjacent to the front leg portion 6. On the other hand, a second flange 17 is formed at a portion on the outside of the vehicle adjacent to the front leg portion 6. The second flange 17 is a portion formed by bending the left and right side ends of the front surface portion 4 downward, and is provided so as to be connected to the plate surface of the front leg portion 6. The rear end portion of the second flange 17 is interrupted before reaching the rear surface portion 5.

後脚部７及び第二後脚部８は、後方面部５から延設される。後脚部７は、後方面部５の車両外側端辺のうち、車両後方寄り（端部寄り）の位置に配置される。これに対し、第二後脚部８は、後方面部５の車両内側端辺のうち、車両後方寄り（端部寄り）の位置に配置される。大まかにいえば、後脚部７及び第二後脚部８の位置は、ブーメラン形状における左右両端部（二つの先端）に相当する位置に設定される。また、ブーメラン形状の外側に配置されるのが後脚部７であり、ブーメラン形状の内側に配置されるのが第二後脚部８である。 The rear leg portion 7 and the second rear leg portion 8 extend from the rear surface portion 5. The rear leg portion 7 is arranged at a position closer to the rear side of the vehicle (closer to the end portion) than the outer side edge of the rear surface portion 5 of the vehicle. On the other hand, the second rear leg portion 8 is arranged at a position closer to the rear side of the vehicle (closer to the end portion) of the inner end side of the rear surface portion 5 of the vehicle. Roughly speaking, the positions of the rear leg portion 7 and the second rear leg portion 8 are set to positions corresponding to the left and right end portions (two tips) in the boomerang shape. Further, the rear leg portion 7 is arranged outside the boomerang shape, and the second rear leg portion 8 is arranged inside the boomerang shape.

車両の上面視で後方面部５から第二後脚部８が伸びる方向は、前脚部６とは正反対の方向であって、斜め後方（車両内側かつ後方へ向かう方向）とされる。また、後方面部５から後脚部７が伸びる方向は、車両前方とされる。これにより、後脚部７の基端から先端までの距離が長くなり、外力作用時における変形のストロークが大きくなる。また、後脚部７を車幅方向外側に伸ばした場合と比較して、後脚部７の車幅方向への突出が抑制される。 The direction in which the second rear leg portion 8 extends from the rear surface portion 5 in the top view of the vehicle is the direction opposite to that of the front leg portion 6 and is obliquely rearward (the direction toward the inside and the rear of the vehicle). Further, the direction in which the rear leg portion 7 extends from the rear surface portion 5 is defined as the front of the vehicle. As a result, the distance from the base end to the tip end of the rear leg portion 7 becomes long, and the deformation stroke when an external force is applied becomes large. Further, as compared with the case where the rear leg portion 7 is extended outward in the vehicle width direction, the protrusion of the rear leg portion 7 in the vehicle width direction is suppressed.

後脚部７の先端は、インナーパネル２の縁部１４に対して面接触した状態で固定（例えばスポット溶接）される。一方、第二後脚部８の先端は、インナーパネル２の板面に対して面接触した状態で固定され、例えばスポット溶接で固定される。また、図２に示すように、後方面部５の車両外側端辺には、第二フランジ１７が形成されない。つまり、後方面部５と後脚部７との境界付近には断面二次モーメントを増加させるための補強構造をあえて適用しないことで、曲げ変形を許容している。 The tip of the rear leg portion 7 is fixed (for example, spot welded) in a state of surface contact with the edge portion 14 of the inner panel 2. On the other hand, the tip of the second rear leg portion 8 is fixed in a state of surface contact with the plate surface of the inner panel 2, and is fixed by spot welding, for example. Further, as shown in FIG. 2, the second flange 17 is not formed on the outer side edge of the rear surface portion 5 of the vehicle. That is, bending deformation is allowed by intentionally not applying a reinforcing structure for increasing the moment of inertia of area near the boundary between the rear surface portion 5 and the rear leg portion 7.

前方面部４の後端辺や後方面部５の車両内側端辺には、階段状に形成された階段フランジ１８が設けられる。階段フランジ１８は、前方面部４や後方面部５の板面を下方及び車両後方に向かってクランク状に屈曲させた部位であり、第二後脚部８の板面につながるように形成される。これにより、補強部材３の端辺のうち、ブーメラン形状の内側に相当する全範囲が曲げ変形しにくい構造となる。 A staircase flange 18 formed in a staircase shape is provided on the rear end side of the front surface portion 4 and the vehicle inner end side of the rear surface portion 5. The staircase flange 18 is a portion in which the plate surfaces of the front surface portion 4 and the rear surface portion 5 are bent downward and toward the rear of the vehicle in a crank shape, and is formed so as to be connected to the plate surface of the second rear leg portion 8. To. As a result, of the end sides of the reinforcing member 3, the entire range corresponding to the inside of the boomerang shape is hard to be bent and deformed.

［２．前脚部］
前脚部６は、補強部材３の前方面部４の縁端（周囲の端部）から面状に延設されて、インナーパネル２の縁部１４に固定される。この前脚部６は、補強部材３の板面の端部にプレス加工を施すことで成形することができる。図３及び図４(A),(B)に示すように、前脚部６には、上から順に第一面部２１，第二面部２２，第三面部２５が設けられる。 [2. Front legs]
The front leg portion 6 extends in a planar shape from the edge portion (peripheral end portion) of the front surface portion 4 of the reinforcing member 3 and is fixed to the edge portion 14 of the inner panel 2. The front leg portion 6 can be formed by pressing the end portion of the plate surface of the reinforcing member 3. As shown in FIGS. 3 and 4 (A) and 4 (B), the front leg portion 6 is provided with a first surface portion 21, a second surface portion 22, and a third surface portion 25 in this order from the top.

第一面部２１は、前脚部６の最上部に設けられる面状の部位である。この第一面部２１は、前方面部４の縁端に対して傾斜した向きで斜めに接続される。図３に示すように、前方面部４と第一面部２１との境界をなす第一屈曲部２６は、山折りの稜線（上に凸の折れ目）となる。前方面部４に対する第一面部２１の屈曲角度θ₁は、図４(B)に示すように、少なくとも直角よりも浅い角度（例えば、20〜80°）に設定される。また、前述の第二フランジ１７は、第一面部２１に対して滑らかに接続される。第一面部２１を平面状とした場合、第二フランジ１７は第一面部２１と同一平面をなすように設ければよい。 The first surface portion 21 is a planar portion provided at the uppermost portion of the front leg portion 6. The first surface portion 21 is obliquely connected to the edge of the front surface portion 4 in an inclined direction. As shown in FIG. 3, the first bent portion 26 forming the boundary between the front surface portion 4 and the first surface portion 21 is a ridgeline of a mountain fold (a fold that is convex upward). As shown in FIG. 4B, the bending angle θ ₁ of the first surface portion 21 with respect to the front surface portion 4 is set to an angle shallower than at least a right angle (for example, 20 to 80 °). Further, the above-mentioned second flange 17 is smoothly connected to the first surface portion 21. When the first surface portion 21 is made flat, the second flange 17 may be provided so as to be flush with the first surface portion 21.

第二面部２２は、第一面部２１に隣接してその下方に設けられる面状の部位である。この第二面部２２は、第一面部２１に対して傾斜した向きで斜めに接続されるが、第一面部２１に対する第二面部２２の屈曲方向は、前方面部４に対する第一面部２１の屈曲方向とは逆方向に設定される。また、第一面部２１に対する第二面部２２の屈曲角度θ₂は、直角よりも浅い角度であって、第一面部２１の屈曲角度θ₁よりも小さい角度（例えば、10〜70°）に設定される。第一面部２１と第二面部２２との境界をなす第二屈曲部２７は、谷折りの溝（下に凸の折れ目）となる。 The second surface portion 22 is a planar portion provided adjacent to the first surface portion 21 and below the first surface portion 21. The second surface portion 22 is obliquely connected to the first surface portion 21 in an inclined direction, but the bending direction of the second surface portion 22 with respect to the first surface portion 21 is the first surface portion with respect to the front surface portion 4. It is set in the direction opposite to the bending direction of 21. Further, the bending angle θ ₂ of the second surface portion 22 with respect to the first surface portion 21 is an angle shallower than a right angle and smaller than the bending angle θ ₁ of the first surface portion 21 (for example, 10 to 70 °). Is set to. The second bent portion 27 forming the boundary between the first surface portion 21 and the second surface portion 22 is a valley fold groove (a downwardly convex fold).

本実施形態の第二面部２２は、幅広部２３と幅狭部２４とに分類できる。第二面部２２の上部をなす部分が幅広部２３であり、第二面部２２の下部をなす部分が幅狭部２４である。図３に示すように、幅広部２３は、第一面部２１に隣接して接続される。また、幅狭部２４は、幅広部２３よりも幅方向の寸法が小さく形成される。したがって、第二面部２２を正面から見ると、その形状はＴ字型（T-shaped）に見える。 The second surface portion 22 of the present embodiment can be classified into a wide portion 23 and a narrow portion 24. The portion forming the upper part of the second surface portion 22 is the wide portion 23, and the portion forming the lower part of the second surface portion 22 is the narrow portion 24. As shown in FIG. 3, the wide portion 23 is connected adjacent to the first surface portion 21. Further, the narrow portion 24 is formed to have a smaller dimension in the width direction than the wide portion 23. Therefore, when the second surface portion 22 is viewed from the front, its shape looks like a T-shape.

第三面部２５は、第二面部２２に隣接してその下方に設けられ、インナーパネル２の縁部１４に固定される面状の部位である。この第三面部２５は、第二面部２２に対して傾斜した向きで斜めに接続される。第二面部２２に対する第三面部２５の屈曲方向は、第一面部２１に対する第二面部２２の屈曲方向と同じ方向に設定される。また、第二面部２２に対する第三面部２５の屈曲角度θ₃は、屈曲角度θ₂と同様に、直角よりも浅い角度であって第一面部２１の屈曲角度θ₁よりも小さい角度（例えば、10〜70°）に設定される。 The third surface portion 25 is a planar portion provided adjacent to and below the second surface portion 22 and fixed to the edge portion 14 of the inner panel 2. The third surface portion 25 is obliquely connected to the second surface portion 22 in an inclined direction. The bending direction of the third surface portion 25 with respect to the second surface portion 22 is set to be the same as the bending direction of the second surface portion 22 with respect to the first surface portion 21. Further, the bending angle theta ₃ of the third surface portion 25 relative to the second surface portion 22, like the bending angle theta _2, a small angle (e.g., than the bending angle theta ₁ of the first surface portion 21 a shallower angle than a right angle , 10-70 °).

本実施形態では、第三面部２５の屈曲角度θ₃が第一面部２１の屈曲角度θ₁と第二面部２２の屈曲角度θ₂との差に相当する角度に設定される。すなわち、θ₃=θ₁-θ₂である。第一面部２１の折り曲げが、第二面部２２及び第三面部２５を反対方向に折り曲げることによって元に戻される。これにより、第三面部２５の姿勢が前方面部４と同じようにほぼ水平となり、インナーパネル２の縁部１４に面接触しやすい向きとなる。また、第三面部２５を前方面部４に対して平行にすることで、補強部材３の固定状態が安定する。 In the present embodiment, it is set to an angle bending angle theta ₃ of the third surface portion 25 corresponds to the difference between the bending angle theta ₂ of the bending angle theta ₁ and the second surface portion 22 of the first surface portion 21. That is, θ ₃ = θ ₁ -θ ₂ . The bending of the first surface portion 21 is restored by bending the second surface portion 22 and the third surface portion 25 in opposite directions. As a result, the posture of the third surface portion 25 becomes substantially horizontal as in the front surface portion 4, and the orientation is such that surface contact with the edge portion 14 of the inner panel 2 is likely to occur. Further, by making the third surface portion 25 parallel to the front surface portion 4, the fixed state of the reinforcing member 3 is stabilized.

図３に示すように、第一屈曲部２６には第一ビード２８が設けられ、第二屈曲部２７には第二ビード２９が設けられる。第一ビード２８は、補強部材３の前方面部４と第一面部２１との境界において、下方のインナーパネル２側に膨出した形状に形成される。一方、第二ビード２９は、第一面部２１と第二面部２２との境界において、上方のアウターパネル１側に膨出した形状に形成される。これらのビード２８，２９の形状は、縦方向に細長い楕円形状や円形，卵形などに設定される。ビード２８，２９を設けることで、外力作用時における第一屈曲部２６及び第二屈曲部２７の変形が減少し、第一面部２１及び第二面部２２の屈曲角度θ₁，θ₂が維持されやすくなる。 As shown in FIG. 3, the first bent portion 26 is provided with the first bead 28, and the second bent portion 27 is provided with the second bead 29. The first bead 28 is formed in a shape bulging toward the lower inner panel 2 at the boundary between the front surface portion 4 and the first surface portion 21 of the reinforcing member 3. On the other hand, the second bead 29 is formed in a shape bulging toward the upper outer panel 1 at the boundary between the first surface portion 21 and the second surface portion 22. The shapes of these beads 28 and 29 are set to be elongated in the vertical direction, such as an elliptical shape, a circular shape, and an oval shape. By providing the beads 28 and 29, the deformation of the first bent portion 26 and the second bent portion 27 when an external force is applied is reduced, and the bending angles θ ₁ and θ _{2 of} the first surface portion 21 and the second surface portion 22 are maintained. It becomes easy to be done.

第一面部２１には、横長のスリット３０が設けられる。スリット３０は、横方向の寸法が長く縦方向の寸法が短い矩形の開口部であり、第一面部２１の板面を水平方向に切り込むことによって形成される。図３に示すように、スリット３０の位置は、第一ビード２８と第二ビード２９との間を上下方向に分断する位置に設定される。スリット３０の延在方向は、第一屈曲部２６，第二屈曲部２７の延在方向とほぼ平行である。このように、ビード２８，２９に挟まれた部位にスリット３０を設けることで、外力作用時における第一面部２１の面内での変形が促進される。 The first surface portion 21 is provided with a horizontally long slit 30. The slit 30 is a rectangular opening having a long horizontal dimension and a short vertical dimension, and is formed by cutting the plate surface of the first surface portion 21 in the horizontal direction. As shown in FIG. 3, the position of the slit 30 is set at a position that divides the first bead 28 and the second bead 29 in the vertical direction. The extending direction of the slit 30 is substantially parallel to the extending direction of the first bent portion 26 and the second bent portion 27. By providing the slit 30 in the portion sandwiched between the beads 28 and 29 in this way, the deformation of the first surface portion 21 in the plane at the time of external force action is promoted.

第二面部２２及び第三面部２５には、前脚部６の端辺（補強部材３とインナーパネル２との間をつなぐ端辺）を補強するための第一補強部３１，第二補強部３２，第三補強部３３が設けられる。これらの補強部３１〜３３は、板面を屈曲させてなる部位であり、前脚部６の端辺に沿って形成される。本実施形態の補強部３１〜３３は、第二面部２２，第三面部２５の板面を隆起させた形状を有する。すなわち、板面を二回屈曲させることで、断面形状をクランク状にしている。例えば、第二面部２２の幅狭部２４の断面形状は、図４(C)に示すように、左右両端部が中央部よりも隆起した形状（上下逆向きのハット形）に形成される。補強部３１〜３３の隆起方向（突出方向）は、後述する接続部３５での山折れの変形を阻害しないように、車両外側または上方に設定される。 The second surface portion 22 and the third surface portion 25 are provided with a first reinforcing portion 31 and a second reinforcing portion 32 for reinforcing the end edges of the front leg portions 6 (the ends connecting the reinforcing member 3 and the inner panel 2). , A third reinforcing portion 33 is provided. These reinforcing portions 31 to 33 are portions formed by bending the plate surface, and are formed along the end edges of the front leg portions 6. The reinforcing portions 31 to 33 of the present embodiment have a shape in which the plate surfaces of the second surface portion 22 and the third surface portion 25 are raised. That is, the cross-sectional shape is made into a crank shape by bending the plate surface twice. For example, as shown in FIG. 4C, the cross-sectional shape of the narrow portion 24 of the second surface portion 22 is formed so that both the left and right end portions are raised from the central portion (upside down hat shape). The raising direction (protruding direction) of the reinforcing portions 31 to 33 is set to the outside or the upper side of the vehicle so as not to hinder the deformation of the mountain fold at the connecting portion 35 described later.

第一補強部３１は、第二面部２２の幅広部２３から幅狭部２４にかけての端辺に沿って、曲線状に形成される。第一補強部３１により、幅広部２３の下部から幅狭部２４の上部までの範囲が補強され、曲げ変形への耐性が向上する。一方、第二補強部３２は、第一補強部３１とは不連続となるように、幅狭部２４の端辺に沿って直線状に形成される。第二補強部３２の位置は、第一補強部３１よりもインナーパネル２に近い位置（第三面部２５に近い位置）に設定される。第一補強部３１と第二補強部３２との離隔距離は、数ミリメートル程度である。また、第三補強部３３は、第三面部２５の端辺に沿って直線状に設けられ、第二補強部３２に連なるように形成される。第三補強部３３は、第二補強部３２の下端をそのまま第三面部２５まで延長したものに相当する。第二補強部３２及び第三補強部３３により、幅狭部２４の下部から第三面部２５までの範囲が補強され、曲げ変形への耐性が向上する。 The first reinforcing portion 31 is formed in a curved shape along the end side of the second surface portion 22 from the wide portion 23 to the narrow portion 24. The first reinforcing portion 31 reinforces the range from the lower portion of the wide portion 23 to the upper portion of the narrow portion 24, and the resistance to bending deformation is improved. On the other hand, the second reinforcing portion 32 is formed linearly along the end edge of the narrow portion 24 so as to be discontinuous with the first reinforcing portion 31. The position of the second reinforcing portion 32 is set to a position closer to the inner panel 2 (a position closer to the third surface portion 25) than the first reinforcing portion 31. The separation distance between the first reinforcing portion 31 and the second reinforcing portion 32 is about several millimeters. Further, the third reinforcing portion 33 is provided linearly along the end edge of the third surface portion 25, and is formed so as to be connected to the second reinforcing portion 32. The third reinforcing portion 33 corresponds to an extension of the lower end of the second reinforcing portion 32 as it is to the third surface portion 25. The range from the lower part of the narrow portion 24 to the third surface portion 25 is reinforced by the second reinforcing portion 32 and the third reinforcing portion 33, and the resistance to bending deformation is improved.

図３に示すように、第一補強部３１と第二補強部３２とが不連続に設けられることから、これらの間には、板面を屈曲させていない部位が残る。以下、この部位を接続部３５と呼ぶ。接続部３５は、第一補強部３１と第二補強部３２とに挟まれた位置で、面状に形成される。接続部３５は、例えばU字断面の曲面状に形成してもよいし、V字溝形状にしてもよいし、平坦な面状に形成してもよい。図４(D)に示すように、本実施形態の接続部３５は平面状であり、第二面部２２の幅狭部２４の左端辺と右端辺との二箇所に設けられる。また、二つの接続部３５は、高さ方向の位置がほぼ同一になるように配置される。したがって、二つの接続部３５を結ぶラインはほぼ水平となる。また、二つの接続部３５を結ぶラインの延在方向は、第一屈曲部２６，第二屈曲部２７の延在方向とほぼ平行である。 As shown in FIG. 3, since the first reinforcing portion 31 and the second reinforcing portion 32 are provided discontinuously, a portion where the plate surface is not bent remains between them. Hereinafter, this portion will be referred to as a connecting portion 35. The connecting portion 35 is formed in a planar shape at a position sandwiched between the first reinforcing portion 31 and the second reinforcing portion 32. The connecting portion 35 may be formed in a curved surface shape having a U-shaped cross section, a V-shaped groove shape, or a flat surface shape, for example. As shown in FIG. 4D, the connecting portion 35 of the present embodiment has a planar shape, and is provided at two locations, the left end side and the right end side of the narrow portion 24 of the second surface portion 22. Further, the two connecting portions 35 are arranged so that their positions in the height direction are substantially the same. Therefore, the line connecting the two connecting portions 35 is substantially horizontal. Further, the extending direction of the line connecting the two connecting portions 35 is substantially parallel to the extending direction of the first bent portion 26 and the second bent portion 27.

接続部３５に隣接する上下の部位は、接続部３５と比較して曲げ変形が生じにくく、接続部３５のみが曲げ変形しやすい構造となっている。このように、第一補強部３１と第二補強部３２との間に接続部３５を設けることで、相対的に接続部３５の近傍で屈曲が生じやすくなる。また、第一面部２１の上端に位置する第一屈曲部２６は第一ビード２８によって補強され、第一面部２１の下端に位置する第二屈曲部２７は第二ビード２９によって補強される。これにより、補強部材３の前方面部４に外力が作用したときには、その外力が第二面部２２に伝達されやすくなる。したがって、接続部３５を屈曲の頂点とした山折れ変形が促進され、補強部材３の変形のストローク（変位量）が大きくなる。 The upper and lower portions adjacent to the connecting portion 35 are less likely to be bent and deformed as compared with the connecting portion 35, and only the connecting portion 35 is easily bent and deformed. By providing the connecting portion 35 between the first reinforcing portion 31 and the second reinforcing portion 32 in this way, bending is likely to occur relatively in the vicinity of the connecting portion 35. Further, the first bent portion 26 located at the upper end of the first surface portion 21 is reinforced by the first bead 28, and the second bent portion 27 located at the lower end of the first surface portion 21 is reinforced by the second bead 29. .. As a result, when an external force acts on the front surface portion 4 of the reinforcing member 3, the external force is easily transmitted to the second surface portion 22. Therefore, the mountain bending deformation with the connecting portion 35 as the apex of bending is promoted, and the deformation stroke (displacement amount) of the reinforcing member 3 becomes large.

図５(A)は、前脚部６を含む車両用フード１０の断面形状を示す図であり、図５(B)は、車両用フード１０の上方からアウターパネル１に外力が作用したときの前脚部６の変形状態を例示する図である。図５(A)に示すように、前脚部６の第一屈曲部２６や第二屈曲部２７や第一補強部３１は、インナーパネル２の梁部１５の直上方に位置している。また、前脚部６の第三面部２５は、インナーパネル２の縁部１４と梁部１５との境界線付近に位置している。 FIG. 5A is a diagram showing a cross-sectional shape of the vehicle hood 10 including the front leg portion 6, and FIG. 5B is a front leg when an external force acts on the outer panel 1 from above the vehicle hood 10. It is a figure which illustrates the deformed state of a part 6. As shown in FIG. 5A, the first bent portion 26, the second bent portion 27, and the first reinforcing portion 31 of the front leg portion 6 are located directly above the beam portion 15 of the inner panel 2. Further, the third surface portion 25 of the front leg portion 6 is located near the boundary line between the edge portion 14 and the beam portion 15 of the inner panel 2.

車両用フード１０の上方からアウターパネル１に外力が作用すると、その外力が補強部材３の前方面部４を介して前脚部６に伝達される。前脚部６の第一面部２１は、その上端及び下端が第一ビード２８及び第二ビード２９によって補強されているため、比較的小さい変形を生じさせつつ、荷重を板面に沿って伝達する。一方、第二面部２２には相対的に屈曲しやすい接続部３５が設けられているため、板面が接続部３５の近傍で屈曲する。 When an external force acts on the outer panel 1 from above the vehicle hood 10, the external force is transmitted to the front leg portion 6 via the front surface portion 4 of the reinforcing member 3. Since the upper end and the lower end of the first surface portion 21 of the front leg portion 6 are reinforced by the first bead 28 and the second bead 29, the load is transmitted along the plate surface while causing relatively small deformation. .. On the other hand, since the second surface portion 22 is provided with the connecting portion 35 which is relatively easy to bend, the plate surface bends in the vicinity of the connecting portion 35.

図５(B)に示すように、第一面部２１から入力される荷重は、第二屈曲部２７を中心として第二面部２２を反時計回りに回動させるように作用する。したがって、第二面部２２の上部が梁部１５の中に落ち込むように変形し、接続部３５を屈曲の頂点とした山折れ変形が生じる。また、前方面部４の板面に沿って第一面部２１へと入力される荷重は、第一面部２１の上部を時計回りに回動させるように作用する。したがって、第一面部２１の上部が車両外側（図中右側）へと傾倒し、スリット３０を起点とする屈曲変形が生じる。このように前脚部６は、変形の過程で縁部１４よりも下方に落ち込みながら外力のエネルギーを吸収し、梁部１５の内部で変形を完了させる。 As shown in FIG. 5B, the load input from the first surface portion 21 acts to rotate the second surface portion 22 counterclockwise around the second bent portion 27. Therefore, the upper portion of the second surface portion 22 is deformed so as to fall into the beam portion 15, and a mountain bending deformation occurs with the connecting portion 35 as the apex of bending. Further, the load input to the first surface portion 21 along the plate surface of the front surface portion 4 acts to rotate the upper portion of the first surface portion 21 clockwise. Therefore, the upper portion of the first surface portion 21 is tilted toward the outside of the vehicle (right side in the drawing), and bending deformation starting from the slit 30 occurs. In this way, the front leg portion 6 absorbs the energy of the external force while falling below the edge portion 14 in the process of deformation, and completes the deformation inside the beam portion 15.

［３．効果］
（１）上記の車両用フード１０では、補強部材３の前脚部６に第一補強部３１と第二補強部３２とが設けられる。第二補強部３２は、第一補強部３１とは不連続に形成される。このような構造により、外力作用時に第一補強部３１と第二補強部３２との間で曲げ変形が生じやすくすることができる。したがって、第一補強部３１と第二補強部３２を連続させた構造と比較して、補強部材３の変形のストロークを大きくすることができ、車両用フード１０の緩衝性能を向上させることができる。 [3. effect]
(1) In the vehicle hood 10 described above, a first reinforcing portion 31 and a second reinforcing portion 32 are provided on the front leg portion 6 of the reinforcing member 3. The second reinforcing portion 32 is formed discontinuously from the first reinforcing portion 31. With such a structure, bending deformation can easily occur between the first reinforcing portion 31 and the second reinforcing portion 32 when an external force is applied. Therefore, as compared with the structure in which the first reinforcing portion 31 and the second reinforcing portion 32 are continuous, the deformation stroke of the reinforcing member 3 can be increased, and the cushioning performance of the vehicle hood 10 can be improved. ..

（２）図４(A),(B)に示すように、前脚部６は、車両外側に向かう下り勾配で傾斜した姿勢で配置される。これにより、前脚部６の板面が下方に落ち込むように変形させることが容易となり、補強部材３の変形形状の制御性を高めることができる。また、補強部材３の前方面部４に入力された外力を車両外側に分散させやすくすることができ、車両用フード１０の緩衝性能を向上させることができる。 (2) As shown in FIGS. 4A and 4B, the front leg portion 6 is arranged in an inclined posture with a downward slope toward the outside of the vehicle. As a result, it becomes easy to deform the plate surface of the front leg portion 6 so as to drop downward, and the controllability of the deformed shape of the reinforcing member 3 can be improved. Further, the external force input to the front surface portion 4 of the reinforcing member 3 can be easily dispersed to the outside of the vehicle, and the cushioning performance of the vehicle hood 10 can be improved.

（３）前脚部６の端辺には、第一補強部３１と第二補強部３２とに挟まれた位置で面状に形成された接続部３５が設けられる。相対的に曲げ変形が生じやすい接続部３５を第一補強部３１と第二補強部３２との間に配置することで、外力作用時に接続部３５を頂点とした山折れの変形を促すことができる。これにより、アウターパネル１とインナーパネル２とに囲まれた空間を効率よく使って、補強部材３の変形のストロークを大きくすることができ、車両用フード１０の緩衝性能を向上させることができる。また、接続部３５のない構造と比較して、前脚部６のねじれ変形を抑制することができ、適切な変形形状を期待することができる。 (3) At the end edge of the front leg portion 6, a connecting portion 35 formed in a planar shape is provided at a position sandwiched between the first reinforcing portion 31 and the second reinforcing portion 32. By arranging the connecting portion 35, which is relatively prone to bending deformation, between the first reinforcing portion 31 and the second reinforcing portion 32, it is possible to promote the deformation of the mountain fold with the connecting portion 35 at the apex when an external force acts. it can. As a result, the space surrounded by the outer panel 1 and the inner panel 2 can be efficiently used to increase the deformation stroke of the reinforcing member 3, and the cushioning performance of the vehicle hood 10 can be improved. Further, as compared with the structure without the connecting portion 35, the torsional deformation of the front leg portion 6 can be suppressed, and an appropriate deformed shape can be expected.

（４）図３に示すように、接続部３５は前脚部６の幅方向の両端辺に配置される。これにより、二つの接続部３５を結ぶラインが稜線となるような屈曲変形を促すことができる。つまり、接続部３５の近傍における屈曲形状を制御することができ、補強部材３の変形形状の制御性を高めることができる。また、変形した後の前脚部６がインナーパネル２の梁部１５を構成する部材に干渉しにくくなり、前脚部６を適切な形状に変形させることができる。したがって、車両用フード１０の緩衝性能を向上させることができる。 (4) As shown in FIG. 3, the connecting portions 35 are arranged on both ends of the front leg portion 6 in the width direction. As a result, it is possible to promote bending deformation so that the line connecting the two connecting portions 35 becomes a ridgeline. That is, the bent shape in the vicinity of the connecting portion 35 can be controlled, and the controllability of the deformed shape of the reinforcing member 3 can be improved. Further, the deformed front leg portion 6 is less likely to interfere with the members constituting the beam portion 15 of the inner panel 2, and the front leg portion 6 can be deformed into an appropriate shape. Therefore, the cushioning performance of the vehicle hood 10 can be improved.

（５）図４(A),(B)に示すように、前脚部６には、第一面部２１，第二面部２２，第三面部２５が設けられる。これらの面部２１，２２，２５のうち、インナーパネル２に固定されているのは第三面部２５のみである。また、外力作用時に第一屈曲部２６から第三面部２５へと至る外力の伝達経路は、あらかじめ屈曲した状態となっている。これにより、前脚部６が屈曲変形しやすいような外力の伝達経路を形成することができ、前脚部６を意図した通りに変形させることができる。したがって、車両用フード１０の緩衝性能を向上させることができる。 (5) As shown in FIGS. 4A and 4B, the front leg portion 6 is provided with a first surface portion 21, a second surface portion 22, and a third surface portion 25. Of these face portions 21, 22, 25, only the third surface portion 25 is fixed to the inner panel 2. Further, the transmission path of the external force from the first bent portion 26 to the third surface portion 25 when the external force acts is in a bent state in advance. As a result, it is possible to form a transmission path of an external force so that the front leg portion 6 is easily bent and deformed, and the front leg portion 6 can be deformed as intended. Therefore, the cushioning performance of the vehicle hood 10 can be improved.

（６）図４(A),(B)に示すように、接続部３５を第二面部２２に設けることで、接続部３５を屈曲の頂点とした山折れ変形を生じやすくすることができ、車両用フード１０の緩衝性能を向上させることができる。また、図５(B)に示すように、第二面部２２が山折れ変形をしたときに、第一面部２１を梁部１５の内側へ落とし込ませやすくすることができ、車両用フード１０の緩衝性能を向上させることができる。 (6) As shown in FIGS. 4A and 4B, by providing the connecting portion 35 on the second surface portion 22, it is possible to easily cause mountain bending deformation with the connecting portion 35 as the apex of bending. The cushioning performance of the vehicle hood 10 can be improved. Further, as shown in FIG. 5B, when the second surface portion 22 is mountain-folded and deformed, the first surface portion 21 can be easily dropped into the beam portion 15, and the vehicle hood 10 can be easily dropped. It is possible to improve the cushioning performance of.

（７）図３に示すように、第二面部２２に幅広部２３と幅狭部２４とを形成し、幅狭部２４に接続部３５を配置することで、接続部３５の近傍での屈曲変形を促進することができ、車両用フード１０の緩衝性能を向上させることができる。また、第二面部２２の下部の幅寸法を小さくすることで、第三面部２５の幅寸法も小さくすることができ、前脚部６をコンパクトにすることができる。 (7) As shown in FIG. 3, by forming a wide portion 23 and a narrow portion 24 on the second surface portion 22 and arranging the connecting portion 35 on the narrow portion 24, bending in the vicinity of the connecting portion 35 is performed. Deformation can be promoted, and the cushioning performance of the vehicle hood 10 can be improved. Further, by reducing the width dimension of the lower portion of the second surface portion 22, the width dimension of the third surface portion 25 can also be reduced, and the front leg portion 6 can be made compact.

（８）図３に示すように、第一屈曲部２６に第一ビード２８を設けることで、第一面部２１の上端での変形を抑制することができ、屈曲角度θ₁を維持しやすくすることができる。これにより、外力作用時に第二面部２２に伝達される外力を大きくすることができ、第二面部２２を適切に変形させることができる。
（９）同様に、第二屈曲部２７に第二ビード２９を設けることで、第一面部２１の下端での変形を抑制することができ、屈曲角度θ₂を維持しやすくすることができる。これにより、外力作用時に第二面部２２に伝達される外力を大きくすることができ、第二面部２２を適切に変形させることができる。 (8) As shown in FIG. 3, by providing the first bead 28 in the first bent portion 26, deformation at the upper end of the first surface portion 21 can be suppressed, and the bending angle θ ₁ can be easily maintained. can do. As a result, the external force transmitted to the second surface portion 22 when the external force acts can be increased, and the second surface portion 22 can be appropriately deformed.
(9) Similarly, by providing the second bead 29 on the second bent portion 27, deformation at the lower end of the first surface portion 21 can be suppressed, and the bending angle θ ₂ can be easily maintained. .. As a result, the external force transmitted to the second surface portion 22 when the external force acts can be increased, and the second surface portion 22 can be appropriately deformed.

（１０）図３に示すように、第一面部２１にスリット３０を設けることで、第一面部２１の面内での屈曲変形を促すことができる。また、二つのビード２８，２９に挟まれた部位にスリット３０を設けることで、屈曲角度θ₁，θ₂を維持したまま第一面部２１の中間部を屈曲させることができる。これにより、図５(B)に示すように、第一面部２１の上部を車両外側へと傾倒させることができ、変形のストロークを大きくすることができる。また、スリット３０を梁部１５の底に接近させることができ、変形後の前脚部６の形状を梁部１５の溝形状に近づけることができる。つまり、梁部１５の内側の空間を効率よく使って前脚部６を変形させることができる。 (10) As shown in FIG. 3, by providing the slit 30 in the first surface portion 21, bending deformation of the first surface portion 21 in the plane can be promoted. Further, by providing the slit 30 in the portion sandwiched between the two beads 28 and 29, the intermediate portion of the first surface portion 21 can be bent while maintaining the bending angles θ ₁ and θ ₂ . As a result, as shown in FIG. 5B, the upper portion of the first surface portion 21 can be tilted toward the outside of the vehicle, and the deformation stroke can be increased. Further, the slit 30 can be brought close to the bottom of the beam portion 15, and the shape of the front leg portion 6 after deformation can be brought close to the groove shape of the beam portion 15. That is, the front leg portion 6 can be deformed by efficiently using the space inside the beam portion 15.

（１１）なお、二つの接続部３５を結ぶラインを第二屈曲部２７と平行に配置することで、前脚部６の変形形状を適正化することができる。例えば、図５(B)に示す状態からさらに変形が進行した場合に、第一面部２１を梁部１５の底に対してほぼ平行にすることができる。つまり、変形後の前脚部６の形状を梁部１５の溝形状に近づけることができる。 (11) By arranging the line connecting the two connecting portions 35 in parallel with the second bent portion 27, the deformed shape of the front leg portion 6 can be optimized. For example, when the deformation further progresses from the state shown in FIG. 5B, the first surface portion 21 can be made substantially parallel to the bottom of the beam portion 15. That is, the shape of the front leg portion 6 after deformation can be made closer to the groove shape of the beam portion 15.

（１２）図５(A),(B)に示すように、インナーパネル２の梁部１５を前脚部６の下方に配置することで、前脚部６を梁部１５の内側に折り込まれるように変形させることができる。したがって、梁部１５の内側の空間を効率よく使って前脚部６を変形させることができる。 (12) As shown in FIGS. 5A and 5B, by arranging the beam portion 15 of the inner panel 2 below the front leg portion 6, the front leg portion 6 is folded inside the beam portion 15. It can be transformed. Therefore, the space inside the beam portion 15 can be efficiently used to deform the front leg portion 6.

［４．変形例］
上記の実施形態はあくまでも例示に過ぎず、本実施形態で明示しない種々の変形や技術の適用を排除する意図はない。本実施形態の各構成は、それらの趣旨を逸脱しない範囲で種々変形して実施することができる。また、必要に応じて取捨選択することができ、あるいは適宜組み合わせることができる。 [4. Modification example]
The above embodiment is merely an example, and there is no intention of excluding the application of various modifications and techniques not specified in the present embodiment. Each configuration of the present embodiment can be variously modified and implemented without departing from the gist thereof. In addition, it can be selected as needed, or can be combined as appropriate.

上述の実施形態では、第二面部２２の板面を二回屈曲させて隆起させることによって第一補強部３１を形成している。一方、第二面部２２の板面を一回屈曲させた部位を第一補強部３１としてもよい。第二補強部３２や第三補強部３３についても同様であり、前脚部６の端辺を補強するために屈曲させた構造となっていればよい。少なくとも、第一補強部３１と第二補強部３２との間に接続部３５を設けることで、上述の実施形態と同様の作用，効果を奏するものとなる。 In the above-described embodiment, the first reinforcing portion 31 is formed by bending the plate surface of the second surface portion 22 twice and raising it. On the other hand, the portion where the plate surface of the second surface portion 22 is bent once may be the first reinforcing portion 31. The same applies to the second reinforcing portion 32 and the third reinforcing portion 33, and the structure may be bent in order to reinforce the end side of the front leg portion 6. At least, by providing the connecting portion 35 between the first reinforcing portion 31 and the second reinforcing portion 32, the same actions and effects as those of the above-described embodiment can be obtained.

１アウターパネル
２インナーパネル
３補強部材
４前方面部
５後方面部
６前脚部（脚部）
７後脚部（脚部）
８第二後脚部（脚部）
１０車両用フード
１１グリル補強部
１２グリル
１３ヘッドランプ
１４縁部
１５梁部
１６フランジ
１７第二フランジ
１８階段フランジ
２１第一面部
２２第二面部
２３幅広部
２４幅狭部
２５第三面部
２６第一屈曲部
２７第二屈曲部
２８第一ビード
２９第二ビード
３０スリット
３１第一補強部
３２第二補強部
３３第三補強部
３５接続部 1 Outer panel 2 Inner panel 3 Reinforcing member 4 Front surface 5 Rear surface 6 Front legs (legs)
7 Rear legs (legs)
8 Second hind legs (legs)
10 Vehicle hood 11 Grill reinforcement 12 Grill 13 Headlamp 14 Edge 15 Beam 16 Flange 17 Second flange 18 Stair flange 21 First side 22 Second side 23 Wide part 24 Narrow part 25 Third side 26 No. 1 Bending part 27 2nd bending part 28 1st bead 29 2nd bead 30 slit 31 1st reinforcing part 32 2nd reinforcing part 33 3rd reinforcing part 35 connection part

Claims

A vehicle hood in which a reinforcing member is deployed between the outer panel and the inner panel.
A leg portion having an end edge extending from the peripheral end portion of the reinforcing member in a planar shape and fixed to the inner panel and connecting the reinforcing member and the inner panel is provided.
The legs
The first reinforcing portion formed by bending the plate surface at the end side,
The plate surface is bent at a position closer to the inner panel than the first reinforcing portion at the end side, and the first reinforcing portion has a second reinforcing portion formed discontinuously. The hood for vehicles.

The vehicle hood according to claim 1, wherein the legs are arranged in an inclined posture with a downward slope toward the outside of the vehicle, and the lower end thereof is fixed to the inner panel.

A connection in which the leg portion is formed in a planar shape at a position sandwiched between the first reinforcing portion and the second reinforcing portion at the end edge, and connects the first reinforcing portion and the second reinforcing portion. The vehicle hood according to claim 1 or 2, wherein the hood has a portion.

The vehicle hood according to claim 3, wherein the connecting portions are arranged on both ends in the width direction of the legs.

The legs
A first surface portion connected in an inclined direction with respect to the peripheral end portion of the reinforcing member,
With the second surface portion connected in an inclined direction with respect to the first surface portion,
The vehicle hood according to any one of claims 1 to 4, wherein the vehicle hood is connected to the second surface portion in an inclined direction and has a third surface portion fixed to the inner panel.

The vehicle hood according to claim 5, wherein the connecting portion is provided on the second surface portion, which is at least subordinate to claim 3.

The second surface portion has a wide portion connected to the first surface portion and a narrow portion having a smaller dimension in the width direction than the wide portion.
The vehicle hood according to claim 6, wherein the connecting portion is provided in the narrow portion.

The invention according to any one of claims 5 to 7, wherein a first bead formed in a bulging shape on the inner panel side at a boundary between the reinforcing member and the first surface portion is provided. Vehicle hood.

The present invention according to any one of claims 5 to 8, wherein a second bead formed in a bulging shape on the outer panel side at the boundary between the first surface portion and the second surface portion is provided. The listed vehicle hood.

The vehicle hood according to any one of claims 5 to 9, further comprising a slit formed in a shape in which the first surface portion is cut in the horizontal direction.

The third aspect of the present invention is characterized in that the layout of the connecting portions arranged at both ends in the width direction of the legs is parallel to the boundary between the first surface portion and the second surface portion. The vehicle hood according to claims 5 to 10.

An edge portion in which the inner panel is formed along the edges of both left and right ends of the plate surface to fix the leg portion, and a beam portion formed by denting the plate surface downward below the leg portion. The vehicle hood according to any one of claims 1 to 11, characterized in that it has.