JP2018058451A

JP2018058451A - Hinge structure of vehicle

Info

Publication number: JP2018058451A
Application number: JP2016196468A
Authority: JP
Inventors: 浩一神谷; Koichi Kamiya; 山本　歩; Ayumi Yamamoto; 歩山本
Original assignee: Isuzu Motors Ltd
Current assignee: Isuzu Motors Ltd
Priority date: 2016-10-04
Filing date: 2016-10-04
Publication date: 2018-04-12
Anticipated expiration: 2036-10-04
Also published as: JP6880476B2

Abstract

PROBLEM TO BE SOLVED: To prevent fracture of a connection part of a hinge arm to a hinge base when a load is input into an engine hood from ahead of a vehicle.SOLUTION: A hinge 10 includes a hinge base 11 fixed to a vehicle body 4 and a hinge leaf 12 fixed to an engine hood 3. The hinge base 11 has a leaf support plate part 15 for supporting the hinge leaf 12. The hinge leaf 12 continuously extends from a leaf side connection part 29 rotatably connected with the hinge base 11 to an engine hood side connection part 31 fixed to the underside of the engine hood 3, disposed ahead of the leaf side connection part 29 and inward in the vehicle width direction. A middle part 32 between the leaf side connection part 29 and the engine hood side connection part 31 has an external arm part 22 extending along a base external surface 28 toward the engine hood side connection part 31 continuously from the leaf side connection part 29 more outward in the vehicle width direction than the base external surface 28.SELECTED DRAWING: Figure 3

Description

本発明は、車体とボンネットとを回転可能に連結する車両のヒンジ構造に関する。 The present invention relates to a vehicle hinge structure that rotatably connects a vehicle body and a bonnet.

特許文献１には、エンジンルーム並びにフードの車両幅方向の両側に左右一対で配設される車両用フードヒンジ構造が記載されている。車両用フードヒンジ構造のフードヒンジは、ヒンジベースと、ヒンジアームとを備えている。ヒンジベースは、カウルトップサイドに取付られる取付部と、取付部の車両幅方向の内側の端部から車両上方側へ屈曲された支持部とを備え、車両正面視で略Ｌ字状に形成されている。ヒンジアームは、ヒンジベースから車両前方側に向かって順次配列された第１フランジ部、第２フランジ部、第３フランジ及び第４フランジ部を有しており、これらの部位は一体に形成されている。ヒンジアームの第１フランジ部は、ヒンジベースの支持部に対して車両幅方向の内側に平行に配置される側壁部を有しており、側壁部の車両上方側には回動軸孔が配設されている。回動軸孔には回動軸が挿入されており、この回動軸を回動中心としてヒンジアームが回動自在にされている。第４フランジ部は、第１フランジ部の側壁部から、第２フランジ部の側壁部、及び第３フランジ部の側壁部を介して車両前方側に向かって延設された側壁部を有し、側壁部の車両上方側の端部には、該端部を車両幅方向の内側に屈曲させた頂壁部が形成されている。ヒンジアームの第４フランジ部の頂壁部には、フードが固定される。 Patent Document 1 describes a hood hinge structure for a vehicle that is disposed in a pair of left and right sides on both sides of an engine room and a hood in the vehicle width direction. A hood hinge having a hood hinge structure for a vehicle includes a hinge base and a hinge arm. The hinge base includes an attachment portion attached to the cowl top side, and a support portion bent upward from the inner end of the attachment portion in the vehicle width direction, and is formed in a substantially L shape when viewed from the front of the vehicle. ing. The hinge arm has a first flange portion, a second flange portion, a third flange, and a fourth flange portion that are sequentially arranged from the hinge base toward the vehicle front side, and these portions are integrally formed. Yes. The first flange portion of the hinge arm has a side wall portion disposed in parallel to the inner side in the vehicle width direction with respect to the hinge base support portion, and a rotation shaft hole is disposed on the vehicle upper side of the side wall portion. It is installed. A rotation shaft is inserted into the rotation shaft hole, and the hinge arm is rotatable about the rotation shaft. The fourth flange portion has a side wall portion extending from the side wall portion of the first flange portion toward the vehicle front side via the side wall portion of the second flange portion and the side wall portion of the third flange portion, A top wall portion formed by bending the end portion inward in the vehicle width direction is formed at an end portion of the side wall portion on the vehicle upper side. A hood is fixed to the top wall portion of the fourth flange portion of the hinge arm.

特開２０１３−１６９８９９号公報JP 2013-169899 A

上記特許文献１に記載の車両用フードヒンジ構造では、ヒンジアームの第４フランジ部の側壁部の車両上方側の端部を車両幅方向の内側に屈曲させた頂壁部にフード（ボンネット）が固定される。このように、側壁部よりも車幅方向内側の頂壁部にボンネットが固定されるので、車両の前部が衝突物と衝突して、ボンネットを介してヒンジアームの第４フランジ部に後方への荷重が入力すると、ヒンジアームには、車幅方向内側へ向かう力が作用する。車両の衝突時等にヒンジアームに対して車幅方向内側への大きな力が作用すると、ヒンジアームの前端側が車幅方向内側へ移動して、ヒンジアームとヒンジベースとの連結部分である回動軸が破断してしまうおそれがある。 In the vehicle hood hinge structure described in Patent Document 1, a hood (bonnet) is formed on the top wall portion where the vehicle upper end of the side wall portion of the fourth flange portion of the hinge arm is bent inward in the vehicle width direction. Fixed. Thus, since the bonnet is fixed to the top wall portion on the inner side in the vehicle width direction from the side wall portion, the front portion of the vehicle collides with the colliding object, and the rear side of the fourth flange portion of the hinge arm passes through the bonnet. When the load is input, a force directed inward in the vehicle width direction acts on the hinge arm. When a large force inward in the vehicle width direction acts on the hinge arm in the event of a vehicle collision or the like, the front end side of the hinge arm moves inward in the vehicle width direction, and the pivot is a connecting portion between the hinge arm and the hinge base. The shaft may break.

そこで、本発明は、ボンネットに対して車両前方から荷重が入力した際に、ヒンジアームとヒンジベースとの連結部分の破断を防止することが可能な車両のヒンジ構造の提供を目的とする。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle hinge structure that can prevent a breakage of a connecting portion between a hinge arm and a hinge base when a load is input to the bonnet from the front of the vehicle.

上記課題を解決するため、本発明の第１の態様は、車両の前部のエンジンルームをボンネットが開閉するようにボンネットを車体に対して回転可能に支持する車両のヒンジ構造であって、ヒンジベースとヒンジアームとを備える。ヒンジベースは、アーム支持部を有し、エンジンルームの後部で車体側に固定される。ヒンジアームは、車幅方向に延びる回転軸を中心としてアーム支持部に対して回転自在に支持され、アーム支持部の車幅方向外側のベース外面の車幅方向外側に配置される軸支持部と、軸支持部よりも車幅方向内側に配置されてボンネットに対して固定されるボンネット支持部とを有し、ボンネットがエンジンルームを閉止した閉止状態でボンネット支持部が軸支持部よりも前方に配置される。ヒンジアームは、ベース外面よりも車幅方向外側で軸支持部から連続してボンネット支持部側へ向かって延びる外側アーム部を有する。ヒンジアームの外側アーム部は、閉止状態でアーム支持部のベース外面と車幅方向に重なる領域を回転軸よりも前方に有する。 In order to solve the above-described problem, a first aspect of the present invention is a vehicle hinge structure that rotatably supports a bonnet with respect to a vehicle body so that the hood opens and closes an engine room at a front portion of the vehicle. A base and a hinge arm are provided. The hinge base has an arm support part and is fixed to the vehicle body side at the rear part of the engine room. The hinge arm is rotatably supported with respect to the arm support portion around a rotation shaft extending in the vehicle width direction, and the shaft support portion is disposed on the outer side in the vehicle width direction on the outer surface of the base on the outer side in the vehicle width direction of the arm support portion. A bonnet support portion that is disposed on the inner side in the vehicle width direction than the shaft support portion and is fixed to the bonnet, and the bonnet support portion is forward of the shaft support portion in a closed state in which the hood closes the engine room. Be placed. The hinge arm has an outer arm portion that continuously extends from the shaft support portion toward the bonnet support portion side outside the base outer surface in the vehicle width direction. The outer arm portion of the hinge arm has a region that overlaps with the base outer surface of the arm support portion in the vehicle width direction in the closed state in front of the rotation shaft.

上記構成では、ヒンジアームのボンネット支持部が、軸支持部よりも車幅方向内側に配置されるので、車両の衝突時等に閉止状態のヒンジアームのボンネット支持部に前方からの力が入力すると、ヒンジアームのボンネット支持部に車幅方向内側への力が作用する。ヒンジアームは、ベース外面よりも車幅方向外側で軸支持部から連続してボンネット支持部側へ向かって延びる外側アーム部を有し、また、外側アーム部は、閉止状態でアーム支持部のベース外面と車幅方向に重なる領域を回転軸よりも前方に有する。このため、ヒンジアームのボンネット支持部に車幅方向内側への力が作用した際に、外側アーム部の上記領域がアーム支持部のベース外面に当接し、この当接によってヒンジアームのボンネット支持部の車幅方向内側への移動を規制することができるので、ヒンジアームとヒンジベースとの連結部分の破断を防止することができる。 In the above configuration, since the bonnet support portion of the hinge arm is arranged on the inner side in the vehicle width direction than the shaft support portion, when a force from the front is input to the hood support portion of the hinge arm in the closed state at the time of a vehicle collision or the like A force inward in the vehicle width direction acts on the hood support portion of the hinge arm. The hinge arm has an outer arm portion continuously extending from the shaft support portion toward the bonnet support portion side on the outer side in the vehicle width direction from the outer surface of the base, and the outer arm portion is a base of the arm support portion in a closed state. A region overlapping the outer surface in the vehicle width direction is provided in front of the rotation shaft. For this reason, when a force inward in the vehicle width direction is applied to the hood support portion of the hinge arm, the region of the outer arm portion comes into contact with the outer surface of the base of the arm support portion. Since the movement to the inner side in the vehicle width direction can be restricted, it is possible to prevent the connecting portion between the hinge arm and the hinge base from being broken.

本発明の第２の態様は、上記第１の態様のヒンジ構造であって、ヒンジベースのアーム支持部の前縁部は、車幅方向から視て回転軸よりも前方でヒンジアームと交叉する。ヒンジベースは、アーム支持部の前縁部よりも後方に配置されるストッパ部を有する。ヒンジアームは、閉止状態でヒンジベースのストッパ部に対応する位置に配置される係合部を有する。閉止状態のヒンジアームのボンネット支持部に車幅方向内側への荷重が作用して、アーム支持部の前縁部を支点としてヒンジアームの軸支持部側に車幅方向外側への力が作用すると、ヒンジアームの係合部とヒンジベースのストッパ部とが係合し、ヒンジベースのストッパ部が、アーム支持部の前縁部よりも後方のヒンジアームの車幅方向外側への移動を規制する。 A second aspect of the present invention is the hinge structure according to the first aspect, wherein a front edge portion of the arm support portion of the hinge base crosses the hinge arm in front of the rotation shaft as viewed from the vehicle width direction. . The hinge base has a stopper portion arranged behind the front edge portion of the arm support portion. The hinge arm has an engaging portion arranged at a position corresponding to the stopper portion of the hinge base in the closed state. When a load inward in the vehicle width direction acts on the hood support portion of the hinge arm in the closed state, and a force outward in the vehicle width direction acts on the shaft support portion side of the hinge arm with the front edge portion of the arm support portion as a fulcrum. The engaging portion of the hinge arm and the stopper portion of the hinge base engage with each other, and the stopper portion of the hinge base restricts the movement of the hinge arm behind the front edge portion of the arm support portion toward the outside in the vehicle width direction. .

上記構成では、ヒンジベースのアーム支持部の前縁部は、車幅方向から視て回転軸よりも前方でヒンジアームと交叉するので、ヒンジアームのボンネット支持部に車幅方向内側への荷重が作用すると、アーム支持部の前縁部を支点としてヒンジアームの軸支持部側に車幅方向外側への力が作用する。ヒンジアームの軸支持部側に車幅方向外側への力が作用すると、ヒンジアームの係合部とヒンジベースのストッパ部とが係合し、ヒンジベースのストッパ部が、アーム支持部の前縁部よりも後方のヒンジアームの車幅方向外側への移動を規制する。このため、閉止状態のボンネットに対して車両前方から荷重が入力した際に、ヒンジアームとヒンジベースとの連結部分の負担を低減することができ、ヒンジアームとヒンジベースとの連結部分の破断を防止することができる。 In the above configuration, the front edge of the hinge base arm support section intersects with the hinge arm in front of the rotation axis when viewed from the vehicle width direction, so that a load inward in the vehicle width direction is applied to the hood support section of the hinge arm. As a result, a force outward in the vehicle width direction acts on the shaft support portion side of the hinge arm with the front edge portion of the arm support portion as a fulcrum. When a force outward in the vehicle width direction acts on the shaft support portion side of the hinge arm, the hinge arm engagement portion and the hinge base stopper portion engage with each other, and the hinge base stopper portion becomes the front edge of the arm support portion. The movement of the hinge arm at the rear of the part toward the outside in the vehicle width direction is restricted. For this reason, when a load is input to the closed bonnet from the front of the vehicle, the load on the connecting portion between the hinge arm and the hinge base can be reduced, and the connecting portion between the hinge arm and the hinge base can be broken. Can be prevented.

本発明によれば、ボンネットに対して車両前方から荷重が入力した際に、ヒンジアームとヒンジベースとの連結部分の破断を防止することができる。 According to the present invention, when a load is input to the bonnet from the front of the vehicle, it is possible to prevent the connecting portion between the hinge arm and the hinge base from being broken.

本発明の一実施形態に係るヒンジを備えた車両の前部の斜視図である。It is a perspective view of the front part of the vehicle provided with the hinge which concerns on one Embodiment of this invention. 図１の車両のヒンジの拡大図である。It is an enlarged view of the hinge of the vehicle of FIG. 図１のヒンジの上面図である。It is a top view of the hinge of FIG. 図１のヒンジの車幅方向外側からの側面図である。It is a side view from the vehicle width direction outer side of the hinge of FIG. 図１のヒンジの車幅方向外側の後方からの斜視図である。It is a perspective view from the back of the vehicle width direction outer side of the hinge of FIG.

以下、本発明の一実施形態を図面に基づいて説明する。なお、各図において、ＦＲは車両の前方を、ＵＰは上方を、ＩＮは車幅方向内側をそれぞれ示し、一点鎖線ＣＬはボンネットを傾動させる際の回転軸を示す。また、以下の説明において、左右方向は車両前方を向いた状態での左右方向を意味する。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In each figure, FR indicates the front of the vehicle, UP indicates the upper side, IN indicates the inner side in the vehicle width direction, and the alternate long and short dash line CL indicates the rotation axis when tilting the bonnet. Moreover, in the following description, the left-right direction means the left-right direction with the vehicle facing forward.

図１に示すように、本実施形態に係る車両のヒンジ構造は、車両１の前部のエンジンルーム２をボンネット３が開閉するようにボンネット３を車体４に対して回転可能に支持するヒンジ１０に適用される。 As shown in FIG. 1, the vehicle hinge structure according to this embodiment includes a hinge 10 that rotatably supports the hood 3 with respect to the vehicle body 4 so that the hood 3 opens and closes the engine room 2 at the front of the vehicle 1. Applies to

エンジンルーム２は、車両１の車室５よりも前方に配置され、エンジンルーム２内にはエンジン（図示省略）が搭載される。ボンネット３は、複数の部材（アウタパネルやインナパネル等）を組み合わせることによって略板状に形成された構造体であって、エンジンルーム２の上方に配置され、ボンネット３の後端部３ａが、エンジンルーム２の後方の車体４側に対し、左右１対のヒンジ１０によって回転自在に連結される。なお、左右のヒンジ１０は、車両１の左右に対称的に設けられ、ほぼ同様の構成を有するため、以下では、左側のヒンジ１０について説明し、右側の説明を省略する。また、以下の説明において、ヒンジ１０についての各方向は、特に説明のない限り、ボンネット３がエンジンルーム２を上方から閉止した閉止状態における方向である。 The engine room 2 is disposed in front of the vehicle compartment 5 of the vehicle 1, and an engine (not shown) is mounted in the engine room 2. The bonnet 3 is a structure formed in a substantially plate shape by combining a plurality of members (an outer panel, an inner panel, etc.), and is disposed above the engine room 2. The bonnet 3 has a rear end 3 a A pair of left and right hinges 10 are rotatably connected to the vehicle body 4 side behind the room 2. The left and right hinges 10 are provided symmetrically on the left and right sides of the vehicle 1 and have substantially the same configuration. Therefore, the left hinge 10 will be described below, and the description on the right side will be omitted. Moreover, in the following description, each direction about the hinge 10 is a direction in a closed state in which the hood 3 closes the engine room 2 from above unless otherwise specified.

図１及び図２に示すように、ヒンジ１０は、車体４に対して固定されるヒンジベース１１と、ボンネット３に対して固定されるヒンジリーフ（ヒンジアーム）１２とを備える。ヒンジベース１１とヒンジリーフ１２とは、車幅方向に延びるヒンジピン１３を介して回転自在に連結される。 As shown in FIGS. 1 and 2, the hinge 10 includes a hinge base 11 fixed to the vehicle body 4 and a hinge leaf (hinge arm) 12 fixed to the bonnet 3. The hinge base 11 and the hinge leaf 12 are rotatably connected via a hinge pin 13 extending in the vehicle width direction.

図２〜図５に示すように、ヒンジベース１１は、金属製の板体によって構成された構造体であって、車体４（図１参照）側に固定される固定板部１４と、ヒンジリーフ１２を支持するリーフ支持板部（アーム支持部）１５と、ヒンジリーフ１２の後述する係止爪（係合部）３５を係止する係止板部（ストッパ部）１７と、中板部１９とを一体的に有する。 As shown in FIGS. 2 to 5, the hinge base 11 is a structure formed of a metal plate, and includes a fixed plate 14 fixed to the vehicle body 4 (see FIG. 1) side, a hinge leaf 12, a leaf support plate portion (arm support portion) 15 that supports 12, a locking plate portion (stopper portion) 17 that locks a locking claw (engagement portion) 35 described later of the hinge leaf 12, and a middle plate portion 19. And integrally.

ヒンジベース１１の固定板部１４は、上下方向と交叉した状態で前後方向に長尺の板部であって、前端部及び後端部のそれぞれに上下方向に貫通するボルト開口１８が形成される。固定板部１４は、その車幅方向の内縁部１４ａと前後方向の後縁部１４ｂとの間に傾斜縁部１４ｃを有する。固定板部１４の内縁部１４ａは、前後方向に略直線状に延び、後縁部１４ｂは、車幅方向の略直線状に延びる。固定板部１４の傾斜縁部１４ｃは、前後方向及び車幅方向に対して傾斜し、内縁部１４ａの後端から車幅方向外側の後方へ向かって後縁部１４ｂの車幅方向内端まで略直線状に延びる。固定板部１４は、僅かに前下方に傾斜した状態で、前後のボルト開口１８を挿通するボルト（図示省略）によって車体４側に締結固定される。 The fixed plate portion 14 of the hinge base 11 is a plate portion that is long in the front-rear direction in a state of intersecting with the vertical direction, and a bolt opening 18 penetrating in the vertical direction is formed in each of the front end portion and the rear end portion. . The fixed plate portion 14 has an inclined edge portion 14c between an inner edge portion 14a in the vehicle width direction and a rear edge portion 14b in the front-rear direction. The inner edge portion 14a of the fixed plate portion 14 extends substantially linearly in the front-rear direction, and the rear edge portion 14b extends substantially linearly in the vehicle width direction. The inclined edge portion 14c of the fixed plate portion 14 is inclined with respect to the front-rear direction and the vehicle width direction, from the rear end of the inner edge portion 14a toward the rear outside in the vehicle width direction, to the inner end in the vehicle width direction of the rear edge portion 14b. It extends substantially linearly. The fixing plate portion 14 is fastened and fixed to the vehicle body 4 side by bolts (not shown) that pass through the front and rear bolt openings 18 while being slightly inclined forward and downward.

ヒンジベース１１のリーフ支持板部１５は、車幅方向と交叉して固定板部１４の内縁部１４ａに沿って起立する板部であって、車幅方向から視て（以下、側面視という）、前側が低く、後側が高い略三角形状に形成される。リーフ支持板部１５の後上端部２０には、車幅方向に貫通してヒンジピン１３が挿通する軸挿通孔（図示省略）が形成され、後上端部２０がヒンジリーフ１２に対して連結されるベース側連結部として機能する。リーフ支持板部１５の後縁部は、固定板部１４の車幅方向内側の後端から連続して後上方へ傾斜して直線状に延びる下側の下部後縁部１５ａと、下部後縁部１５ａの上端から連続して後上方へ傾斜して直線状に延びる上側の上部後縁部１５ｂとを有する。固定板部１４に対するリーフ支持板部１５の後縁部の後側の傾斜角度は、下部後縁部１５ａよりも上部後縁部１５ｂの方が大きい。リーフ支持板部１５の前縁部１５ｃは、固定板部１４の内縁部１４ａの前端側とリーフ支持板部１５の後上端部２０側との間で後下方へ緩やかに湾曲する略円弧状に延びている。リーフ支持板部１５は、軸挿通孔と略同じ高さ位置に配置されて前縁部１５ｃから上方へ突出する開放ストッパ２１を有する。開放ストッパ２１の上端部２１ａは、車幅方向外側へ曲折しており、後述するヒンジリーフ１２の外側アーム部２２と当接してヒンジリーフ１２の開放方向への傾動を開放位置に規制する。 The leaf support plate portion 15 of the hinge base 11 is a plate portion that stands along the inner edge portion 14a of the fixed plate portion 14 so as to cross the vehicle width direction, and is viewed from the vehicle width direction (hereinafter referred to as a side view). The front side is low and the back side is high, and it is formed in a substantially triangular shape. The rear upper end portion 20 of the leaf support plate portion 15 is formed with a shaft insertion hole (not shown) that penetrates in the vehicle width direction and through which the hinge pin 13 is inserted, and the rear upper end portion 20 is connected to the hinge leaf 12. It functions as a base side connecting part. The rear edge portion of the leaf support plate portion 15 includes a lower lower rear edge portion 15a that continuously extends from the rear end on the inner side in the vehicle width direction of the fixed plate portion 14 and extends linearly in the rear upper direction, and a lower rear edge. And an upper upper rear edge portion 15b that is continuously inclined from the upper end of the portion 15a to the rear upper side and extends linearly. The inclination angle of the rear side of the rear edge of the leaf support plate 15 with respect to the fixed plate 14 is larger in the upper rear edge 15b than in the lower rear edge 15a. The front edge portion 15c of the leaf support plate portion 15 has a substantially arc shape that gently curves downward and downward between the front end side of the inner edge portion 14a of the fixed plate portion 14 and the rear upper end portion 20 side of the leaf support plate portion 15. It extends. The leaf support plate portion 15 has an opening stopper 21 that is disposed at substantially the same height as the shaft insertion hole and protrudes upward from the front edge portion 15c. The upper end portion 21a of the opening stopper 21 is bent outward in the vehicle width direction, and abuts against an outer arm portion 22 of the hinge leaf 12 to be described later to restrict the tilt of the hinge leaf 12 in the opening direction to the opening position.

リーフ支持板部１５には、軸挿通孔の下方近傍から、固定板部１４の内縁部１４ａのうちの後端部の近傍まで連続して延びるベース側ビード２３が形成される。ベース側ビード２３は、リーフ支持板部１５の車幅方向内側のベース内面２７（リーフ支持板部１５の車幅方向内側面）側が車幅方向内側へ突出し、且つリーフ支持板部１５の車幅方向外側のベース外面２８（リーフ支持板部１５の車幅方向外側面）側が車幅方向内側へ凹む状態で上下方向に延びて、リーフ支持板部１５を補強する。 A base-side bead 23 is formed in the leaf support plate portion 15 so as to continuously extend from the vicinity below the shaft insertion hole to the vicinity of the rear end portion of the inner edge portion 14 a of the fixed plate portion 14. The base side bead 23 has a base inner surface 27 (an inner surface in the vehicle width direction of the leaf support plate portion 15) on the inner side in the vehicle width direction of the leaf support plate portion 15 projecting inward in the vehicle width direction, and the vehicle width of the leaf support plate portion 15. The base outer surface 28 (the outer surface in the vehicle width direction of the leaf support plate portion 15) on the outer side in the direction extends in the up-down direction while being recessed inward in the vehicle width direction, thereby reinforcing the leaf support plate portion 15.

ヒンジベース１１の係止板部１７は、前後方向と交叉して固定板部１４の後縁部１４ｂに沿って起立する上下方向に長尺の板部であって、前後方向に貫通する縦長の爪挿入孔２４を有する。係止板部１７は、側面視において固定板部１４の後縁部１４ｂから後上方へ傾斜して直線状に延びている。係止板部１７の車幅方向の内縁部は、下部内縁部１７ａと上部内縁部１７ｂとを有する。下部内縁部１７ａは、固定板部１４の後縁部１４ｂの車幅方向内端と、リーフ支持板部１５の下部後縁部１５ａと上部後縁部１５ｂとが交叉する角部２５との間で直線状に延びる。上部内縁部１７ｂは、下部内縁部１７ａの上端（角部２５）からリーフ支持板部１５の上部後縁部１５ｂに沿って延びる。係止板部１７の上端は、リーフ支持板部１５の後上端部２０の軸挿通孔よりも下方に配置される。爪挿入孔２４は、下部内縁部１７ａの上端（角部２５）よりも上方に配置される。爪挿入孔２４には、後述するヒンジリーフ１２の係止爪３５が挿入され、爪挿入孔２４よりも車幅方向外側の係止板部１７がストッパ部として機能する。 The locking plate portion 17 of the hinge base 11 is a vertically long plate portion that rises along the rear edge portion 14b of the fixed plate portion 14 so as to cross the front-rear direction, and is vertically long and penetrates in the front-rear direction. A nail insertion hole 24 is provided. The locking plate portion 17 is inclined in a rearward upward direction from the rear edge portion 14b of the fixed plate portion 14 in a side view and extends linearly. The inner edge portion of the locking plate portion 17 in the vehicle width direction has a lower inner edge portion 17a and an upper inner edge portion 17b. The lower inner edge portion 17a is between the inner end in the vehicle width direction of the rear edge portion 14b of the fixed plate portion 14 and the corner portion 25 where the lower rear edge portion 15a and the upper rear edge portion 15b of the leaf support plate portion 15 intersect. It extends in a straight line. The upper inner edge portion 17b extends along the upper rear edge portion 15b of the leaf support plate portion 15 from the upper end (corner portion 25) of the lower inner edge portion 17a. The upper end of the locking plate portion 17 is disposed below the shaft insertion hole of the rear upper end portion 20 of the leaf support plate portion 15. The claw insertion hole 24 is disposed above the upper end (corner portion 25) of the lower inner edge portion 17a. A locking claw 35 of the hinge leaf 12 to be described later is inserted into the claw insertion hole 24, and the locking plate portion 17 outside the claw insertion hole 24 in the vehicle width direction functions as a stopper portion.

ヒンジベース１１の中板部１９は、略三角形状の板部であって、その外縁が、固定板部１４の傾斜縁部１４ｃと、リーフ支持板部１５の下部後縁部１５ａと、係止板部１７の下部内縁部１７ａとに連続している。 The middle plate portion 19 of the hinge base 11 is a substantially triangular plate portion, and its outer edge includes an inclined edge portion 14 c of the fixed plate portion 14, a lower rear edge portion 15 a of the leaf support plate portion 15, and locking. It continues to the lower inner edge portion 17a of the plate portion 17.

ヒンジリーフ１２は、ヒンジベース１１に対して回転自在に連結されるリーフ側連結部（軸支持部）２９から、リーフ側連結部２９よりも前方、且つ車幅方向内側に配置されてボンネット３（図１参照）の下面に対して固定されるボンネット側連結部（ボンネット支持部）３１まで連続して延びる。リーフ側連結部２９は、ヒンジベース１１のリーフ支持板部１５のベース外面２８よりも車幅方向外側に配置され、ボンネット側連結部３１は、ベース外面２８よりも車幅方向内側に配置される。リーフ側連結部２９とボンネット側連結部３１との間の中間部３２は、ベース外面２８よりも車幅方向外側でリーフ側連結部２９から連続してボンネット側連結部３１へ向かって延びる外側アーム部２２と、ベース外面２８よりも車幅方向内側で外側アーム部２２から連続してボンネット側連結部３１まで延びる内側アーム部３０とによって構成される。すなわち、ヒンジリーフ１２は、基端側から先端側へ向かって、リーフ側連結部２９、外側アーム部２２、内側アーム部３０、ボンネット側連結部３１の順に延びている。上面視において、リーフ側連結部２９及び外側アーム部２２は、ボンネット３の外縁部よりも外側に配置され、内側アーム部３０及びボンネット側連結部３１は、ボンネット３の外縁部よりも内側（ボンネット３の下方）に配置される（図３参照）。なお、以下の説明において、基端側とは、リーフ側連結部２９側を、先端側とは、ボンネット側連結部３１側をそれぞれ意味する。 The hinge leaf 12 is disposed in front of the leaf side connection portion 29 and on the inner side in the vehicle width direction from the leaf side connection portion (shaft support portion) 29 that is rotatably connected to the hinge base 11, and the hood 3 ( It extends continuously to a bonnet side connecting portion (bonnet support portion) 31 fixed to the lower surface of FIG. The leaf side connecting portion 29 is disposed on the outer side in the vehicle width direction with respect to the base outer surface 28 of the leaf support plate portion 15 of the hinge base 11, and the bonnet side connecting portion 31 is disposed on the inner side in the vehicle width direction with respect to the base outer surface 28. . The intermediate portion 32 between the leaf side connecting portion 29 and the bonnet side connecting portion 31 is an outer arm that extends continuously from the leaf side connecting portion 29 toward the bonnet side connecting portion 31 outside the base outer surface 28 in the vehicle width direction. And an inner arm portion 30 that extends continuously from the outer arm portion 22 to the bonnet side connecting portion 31 on the inner side in the vehicle width direction from the base outer surface 28. That is, the hinge leaf 12 extends in the order of the leaf side connecting portion 29, the outer arm portion 22, the inner arm portion 30, and the bonnet side connecting portion 31 from the proximal end side toward the distal end side. When viewed from above, the leaf-side connecting portion 29 and the outer arm portion 22 are arranged outside the outer edge portion of the bonnet 3, and the inner arm portion 30 and the bonnet-side connecting portion 31 are located inside the outer edge portion of the bonnet 3 (the bonnet 3 (below 3) (see FIG. 3). In the following description, the proximal end side means the leaf side connecting portion 29 side, and the distal end side means the bonnet side connecting portion 31 side.

ヒンジリーフ１２のリーフ側連結部２９は、車幅方向と交叉する板部であって、車幅方向に貫通してヒンジピン１３が挿通する軸挿通孔（図示省略）を有し、ヒンジピン１３を介してヒンジベース１１のリーフ支持板部１５の後上端部２０に回転自在に連結される。これにより、ヒンジリーフ１２は、ヒンジピン１３の軸心（回転軸）ＣＬを中心としてヒンジベース１１に回転自在に支持される。 The leaf-side connecting portion 29 of the hinge leaf 12 is a plate portion that intersects with the vehicle width direction, and has a shaft insertion hole (not shown) that penetrates in the vehicle width direction and through which the hinge pin 13 is inserted. The leaf support plate portion 15 of the hinge base 11 is rotatably connected to the rear upper end portion 20. Thereby, the hinge leaf 12 is rotatably supported by the hinge base 11 around the axis (rotation axis) CL of the hinge pin 13.

ヒンジリーフ１２の外側アーム部２２は、外側アーム縦板部３３と外フランジ部３４と係止爪（係合部）３５とを有し、ベース外面２８よりも車幅方向外側でベース外面２８に沿って配置される。 The outer arm portion 22 of the hinge leaf 12 includes an outer arm vertical plate portion 33, an outer flange portion 34, and a locking claw (engagement portion) 35, and is formed on the base outer surface 28 outside the base outer surface 28 in the vehicle width direction. Arranged along.

外側アーム縦板部３３は、ヒンジベース１１のベース外面２８よりも車幅方向外側、且つ係止板部１７の爪挿入孔２４よりも車幅方向内側で車幅方向と交叉する板部であって、リーフ側連結部２９から連続して前下方へ直線状に延びてから、その下端側で湾曲して前上方へ延びるように、側面視で略Ｌ字状に形成される。外側アーム縦板部３３の前側の内側アーム部３０との境界部３９は、側面視においてリーフ支持板部１５の前縁部１５ｃよりも僅かに前方で、リーフ支持板部１５と重ならない領域に配置される。すなわち、リーフ支持板部１５の前縁部１５ｃは、側面視においてヒンジピン１３の軸心ＣＬよりも前方でヒンジリーフ１２と交叉する。外側アーム縦板部３３の後縁部３３ａは、ヒンジベース１１の係止板部１７から僅かに前方へ離間した位置で、係止板部１７の延設方向に沿って上下方向に傾斜して直線状に延びる。外側アーム縦板部３３の下縁部３３ｂは、ヒンジベース１１の固定板部１４よりも上方に配置される。外側アーム縦板部３３の後縁部３３ａと下縁部３３ｂとの角部は、面取りされて側面視において湾曲している。外側アーム縦板部３３の車幅方向内側面３６は、その略全域がベース外面２８に対向する。すなわち、外側アーム部２２は、ベース外面２８と車幅方向に重なる領域を、ヒンジピン１３の軸心ＣＬよりも前方に有する。 The outer arm vertical plate portion 33 is a plate portion that intersects the vehicle width direction outside the base outer surface 28 of the hinge base 11 and in the vehicle width direction outside the claw insertion hole 24 of the locking plate portion 17. Then, it is formed in a substantially L shape in a side view so as to extend linearly from the leaf side connecting portion 29 to the front lower side and then to be bent at the lower end side to extend to the front upper side. A boundary portion 39 of the outer arm vertical plate portion 33 with the front inner arm portion 30 is slightly in front of the front edge portion 15c of the leaf support plate portion 15 in a side view and does not overlap the leaf support plate portion 15. Be placed. That is, the front edge portion 15c of the leaf support plate portion 15 intersects the hinge leaf 12 in front of the axis CL of the hinge pin 13 in a side view. The rear edge portion 33 a of the outer arm vertical plate portion 33 is inclined in the vertical direction along the extending direction of the locking plate portion 17 at a position slightly spaced forward from the locking plate portion 17 of the hinge base 11. Extends linearly. The lower edge portion 33 b of the outer arm vertical plate portion 33 is disposed above the fixed plate portion 14 of the hinge base 11. Corner portions of the rear edge portion 33a and the lower edge portion 33b of the outer arm vertical plate portion 33 are chamfered and curved in a side view. A substantially entire region of the inner side surface 36 in the vehicle width direction of the outer arm vertical plate portion 33 faces the base outer surface 28. That is, the outer arm portion 22 has a region overlapping with the base outer surface 28 in the vehicle width direction in front of the axial center CL of the hinge pin 13.

外側アーム縦板部３３には、リーフ側連結部２９の下方近傍から、外側アーム部２２の延設方向に沿って内側アーム部３０側へ連続するリーフ側ビード３７が形成される。リーフ側ビード３７は、外側アーム縦板部３３の車幅方向内側面３６側が車幅方向外側へ凹み、且つ外側アーム縦板部３３の車幅方向外側面３８側が車幅方向外側へ突出する状態で外側アーム部２２の延設方向に沿って延びて、ヒンジリーフ１２を補強する。 The outer arm vertical plate portion 33 is formed with a leaf side bead 37 continuous from the vicinity below the leaf side connecting portion 29 to the inner arm portion 30 side along the extending direction of the outer arm portion 22. The leaf side bead 37 is a state in which the vehicle width direction inner side surface 36 side of the outer arm vertical plate portion 33 is recessed outward in the vehicle width direction, and the vehicle width direction outer side surface 38 side of the outer arm vertical plate portion 33 protrudes outward in the vehicle width direction. Then, the hinge leaf 12 is reinforced by extending along the extending direction of the outer arm portion 22.

外フランジ部３４は、外側アーム縦板部３３の後縁部３３ａ及び下縁部３３ｂから曲折して車幅方向外側へ突出し、外側アーム縦板部３３の後縁部３３ａの上端から下縁部３３ｂの前端まで連続して延びている。外フランジ部３４は、閉止状態で、その前端部３４ａが側面視においてリーフ支持板部１５の前縁部１５ｃの一部と略同じ位置（車幅方向に重なる位置）になるように形成される。外フランジ部３４のうち外側アーム縦板部３３の後縁部３３ａに沿って直線状に延びている領域は、ヒンジベース１１の係止板部１７から僅かに前方に離間した位置で係止板部１７と対向する。外フランジ部３４は、ヒンジリーフ１２を補強する。 The outer flange portion 34 bends from the rear edge portion 33a and the lower edge portion 33b of the outer arm vertical plate portion 33 and protrudes outward in the vehicle width direction, and extends from the upper end of the rear edge portion 33a of the outer arm vertical plate portion 33 to the lower edge portion. It extends continuously to the front end of 33b. The outer flange portion 34 is formed in a closed state so that a front end portion 34a thereof is substantially the same position (a position overlapping in the vehicle width direction) as a part of the front edge portion 15c of the leaf support plate portion 15 in a side view. . The region of the outer flange portion 34 that extends linearly along the rear edge portion 33a of the outer arm vertical plate portion 33 is located at a position slightly spaced forward from the locking plate portion 17 of the hinge base 11. Opposite the part 17. The outer flange portion 34 reinforces the hinge leaf 12.

係止爪３５は、外フランジ部３４のうち外側アーム縦板部３３の後縁部３３ａに沿って直線状に延びている領域のうち、ヒンジベース１１の係止板部１７の爪挿入孔２４と略同じ高さ位置に設けられる。係止爪３５は、外フランジ部３４から車幅方向外側へ突出してから曲折して後方へ延び、係止板部１７の爪挿入孔２４を挿通する。すなわち、係止爪３５は、閉止状態で係止板部１７の爪挿入孔２４に対応する位置に配置される。なお、係止爪３５と係止板部１７の爪挿入孔２４とは、ボンネット３を閉止状態から開放状態にするためのヒンジリーフ１２の傾動時に、互いに干渉しない大きさに形成され、ヒンジベース１１に対するヒンジリーフ１２の傾動を許容する。ボンネット３を閉止状態から開放状態にする際には、係止爪３５は、前方へ移動して、係止板部１７の爪挿入孔２４から前側へ抜ける。 The locking claw 35 is a region extending linearly along the rear edge portion 33 a of the outer arm vertical plate portion 33 in the outer flange portion 34, and the claw insertion hole 24 of the locking plate portion 17 of the hinge base 11. Are provided at approximately the same height. The locking claw 35 protrudes outward in the vehicle width direction from the outer flange portion 34, then bends and extends rearward, and passes through the claw insertion hole 24 of the locking plate portion 17. That is, the locking claw 35 is disposed at a position corresponding to the claw insertion hole 24 of the locking plate portion 17 in the closed state. The locking claw 35 and the claw insertion hole 24 of the locking plate portion 17 are formed so as not to interfere with each other when the hinge leaf 12 is tilted to bring the bonnet 3 from the closed state to the open state. 11 allows the hinge leaf 12 to be tilted relative to 11. When the bonnet 3 is changed from the closed state to the opened state, the locking claw 35 moves forward and comes out from the claw insertion hole 24 of the locking plate portion 17 to the front side.

ヒンジリーフ１２の内側アーム部３０は、内側アーム縦板部４０と内フランジ部４１とを有し、側面視において外側アーム部２２の先端側から連続して前上方へ向かって延びる（図４参照）。また、内側アーム部３０は、上面視において外側アーム部２２の先端側から連続して車幅方向内側の前方へ向かって延び、リーフ支持板部１５の前方を横断する（図３参照）。内側アーム部３０の前端は、ヒンジベース１１の固定板部１４の前端よりも後方に配置される。内側アーム縦板部４０は、車幅方向と交叉し、外側アーム縦板部３３の前端から連続して車幅方向内側の前上方へ延びる。内フランジ部４１は、内側アーム縦板部４０の上縁部から曲折して車幅方向内側へ突出し、ヒンジリーフ１２を補強する。 The inner arm portion 30 of the hinge leaf 12 has an inner arm vertical plate portion 40 and an inner flange portion 41, and continuously extends from the distal end side of the outer arm portion 22 toward the front and upper side in a side view (see FIG. 4). ). Moreover, the inner side arm part 30 is continuously extended from the front end side of the outer side arm part 22 toward the front of the vehicle width direction inner side in top view, and crosses the front of the leaf support plate part 15 (refer FIG. 3). The front end of the inner arm portion 30 is disposed behind the front end of the fixed plate portion 14 of the hinge base 11. The inner arm vertical plate portion 40 intersects with the vehicle width direction and continuously extends from the front end of the outer arm vertical plate portion 33 toward the front upper side in the vehicle width direction. The inner flange portion 41 is bent from the upper edge portion of the inner arm vertical plate portion 40 and protrudes inward in the vehicle width direction to reinforce the hinge leaf 12.

内側アーム縦板部４０には、外側アーム縦板部３３側から連続してリーフ側ビード３７が形成される。すなわち、リーフ側ビード３７は、リーフ側連結部２９の下方近傍から内側アーム縦板部４０の前端部まで連続して延び、側面視においてリーフ支持板部１５の前縁部１５ｃと交叉する。リーフ側ビード３７は、内側アーム縦板部４０の車幅方向内側面側が車幅方向外側へ凹み、且つ内側アーム縦板部４０の車幅方向外側面４２側が車幅方向外側へ突出する状態で内側アーム部３０の延設方向に沿って延びて、ヒンジリーフ１２を補強する。 A leaf-side bead 37 is formed on the inner arm vertical plate portion 40 continuously from the outer arm vertical plate portion 33 side. That is, the leaf-side bead 37 continuously extends from the vicinity below the leaf-side connecting portion 29 to the front end portion of the inner arm vertical plate portion 40, and crosses the front edge portion 15c of the leaf support plate portion 15 in a side view. The leaf-side bead 37 is in a state where the inner side surface in the vehicle width direction of the inner arm vertical plate portion 40 is recessed outward in the vehicle width direction, and the outer surface 42 side in the vehicle width direction of the inner arm vertical plate portion 40 protrudes outward in the vehicle width direction. The hinge leaf 12 is reinforced by extending along the extending direction of the inner arm portion 30.

ヒンジリーフ１２のボンネット側連結部３１は、前側アーム縦板部４３と前側内フランジ部４４とを有し、内側アーム部３０の先端側から連続して僅かに前下方へ傾斜して延びる（図４参照）。ボンネット側連結部３１の前端は、ヒンジベース１１の固定板部１４の前端よりも前方に配置される。前側アーム縦板部４３は、車幅方向と交叉し、内側アーム縦板部４０の前端から連続して僅かに前下方へ傾斜して延びる。前側内フランジ部４４は、前側アーム縦板部４３の上縁部から曲折して車幅方向内側へ突出し、且つ内側アーム部３０の内フランジ部４１の前端から連続して上下方向と交叉した状態で前方へ延びる。前側内フランジ部４４には、互いに前後に離間した位置に配置されて上下方向に貫通する２つのボルト挿通孔４５が形成される。ボンネット側連結部３１は、２つのボルト挿通孔４５を挿通するボルト（図示省略）によって、ボンネット３に対して締結固定される。 The bonnet side connecting portion 31 of the hinge leaf 12 includes a front arm vertical plate portion 43 and a front inner flange portion 44, and extends from the front end side of the inner arm portion 30 while being inclined slightly forward and downward (see FIG. 4). The front end of the bonnet side connecting portion 31 is disposed in front of the front end of the fixed plate portion 14 of the hinge base 11. The front arm vertical plate portion 43 intersects with the vehicle width direction and extends from the front end of the inner arm vertical plate portion 40 while being inclined slightly forward and downward. The front inner flange portion 44 is bent from the upper edge portion of the front arm vertical plate portion 43 and protrudes inward in the vehicle width direction, and is continuously crossed from the front end of the inner flange portion 41 of the inner arm portion 30 in the vertical direction. Extend forward. The front inner flange portion 44 is formed with two bolt insertion holes 45 that are arranged at positions spaced apart from each other in the front-rear direction and penetrate vertically. The bonnet side connecting portion 31 is fastened and fixed to the bonnet 3 by bolts (not shown) that pass through the two bolt insertion holes 45.

上記のように構成されたヒンジ１０では、リーフ側連結部２９が、ヒンジベース１１のリーフ支持板部１５のベース外面２８よりも車幅方向外側に配置され、ボンネット側連結部３１が、ベース外面２８よりも車幅方向内側に配置される。すなわち、ヒンジリーフ１２のボンネット側連結部３１が、リーフ側連結部２９よりも車幅方向内側に配置される。このため、車両１の前部が衝突物と衝突した際に、ボンネット３を介してヒンジリーフ１２のボンネット側連結部３１に前方からの荷重が入力すると、その荷重は、内側アーム部３０が延びる方向（ボンネット側連結部３１の後端から車幅方向外側の後方）と、車幅方向内側の後方とに分解されて各方向へ分力として作用する。すなわち、車両１の前部が衝突物と衝突した際には、ボンネット側連結部３１に車幅方向内側への力が作用する。 In the hinge 10 configured as described above, the leaf side connecting portion 29 is disposed on the outer side in the vehicle width direction of the base outer surface 28 of the leaf support plate portion 15 of the hinge base 11, and the bonnet side connecting portion 31 is connected to the base outer surface. It is arranged on the inner side in the vehicle width direction than 28. That is, the bonnet side connecting portion 31 of the hinge leaf 12 is arranged on the inner side in the vehicle width direction than the leaf side connecting portion 29. For this reason, when the front part of the vehicle 1 collides with the collision object, if a load from the front is input to the bonnet side connection part 31 of the hinge leaf 12 via the bonnet 3, the inner arm part 30 extends as the load. It is disassembled into a direction (from the rear end of the bonnet side connecting portion 31 to the rear in the vehicle width direction) and a rear in the vehicle width direction and acts as a component force in each direction. That is, when the front portion of the vehicle 1 collides with the collision object, a force inward in the vehicle width direction acts on the bonnet side connecting portion 31.

ヒンジリーフ１２の外側アーム部２２が、ベース外面２８と車幅方向に重なる領域を、ヒンジピン１３の軸心ＣＬよりも前方に有し、ベース外面２８よりも車幅方向外側でベース外面２８に沿って配置される。このため、車両１の前部が衝突物と衝突して、ボンネット側連結部３１に車幅方向内側への力が作用した際に、外側アーム部２２の外側アーム縦板部３３の車幅方向内側面３６のうちベース外面２８と対向する領域がリーフ支持板部１５のベース外面２８に面接触（当接）し、この面接触によってボンネット側連結部３１の車幅方向内側への移動を規制することができる。従って、ヒンジリーフ１２とヒンジベース１１との連結部分（ヒンジピン１３を含む）の破断を防止することができる。 The outer arm portion 22 of the hinge leaf 12 has a region that overlaps with the base outer surface 28 in the vehicle width direction in front of the axis CL of the hinge pin 13 and extends along the base outer surface 28 outside the base outer surface 28 in the vehicle width direction. Arranged. For this reason, when the front part of the vehicle 1 collides with the collision object, and the force toward the inner side in the vehicle width direction acts on the bonnet side connecting part 31, the vehicle armwise direction of the outer arm vertical plate part 33 of the outer arm part 22. A region of the inner side surface 36 facing the base outer surface 28 is in surface contact (contact) with the base outer surface 28 of the leaf support plate portion 15, and movement of the bonnet side connecting portion 31 inward in the vehicle width direction is restricted by this surface contact. can do. Therefore, it is possible to prevent breakage of the connecting portion (including the hinge pin 13) between the hinge leaf 12 and the hinge base 11.

また、ヒンジベース１１のリーフ支持板部１５の前縁部１５ｃは、側面視においてヒンジピン１３の軸心ＣＬよりも前方でヒンジリーフ１２と交叉するので、ヒンジリーフ１２のボンネット側連結部３１に車幅方向内側への荷重が作用すると、ヒンジリーフ１２とリーフ支持板部１５の前縁部１５ｃとが当接し、リーフ支持板部１５の前縁部１５ｃを支点としてヒンジリーフ１２のリーフ側連結部２９側に車幅方向外側への力が作用する。ヒンジリーフ１２のリーフ側連結部２９側に車幅方向外側への力が作用すると、ヒンジリーフ１２の係止爪３５が、ヒンジベース１１の係止板部１７の爪挿入孔２４を挿通した状態で、車幅方向外側へ移動して爪挿入孔２４よりも車幅方向外側の係止板部１７に当接する。すなわち、ヒンジリーフ１２の係止爪３５とヒンジベース１１の係止板部１７とが係合し、係止板部１７が、リーフ支持板部１５の前縁部１５ｃよりも後方のヒンジリーフ１２（外側アーム部２２やリーフ側連結部２９）の車幅方向外側への移動を規制する。このため、閉止状態のボンネット３に対して車両前方から荷重が入力した際に、ヒンジリーフ１２とヒンジベース１１との連結部分の負担を低減することができ、ヒンジリーフ１２とヒンジベース１１との連結部分の破断を防止することができる。 Further, the front edge portion 15c of the leaf support plate portion 15 of the hinge base 11 crosses the hinge leaf 12 in front of the axial center CL of the hinge pin 13 in a side view, so that the vehicle is connected to the bonnet side connecting portion 31 of the hinge leaf 12. When a load inward in the width direction is applied, the hinge leaf 12 and the front edge portion 15c of the leaf support plate portion 15 come into contact with each other, and the leaf side coupling portion of the hinge leaf 12 with the front edge portion 15c of the leaf support plate portion 15 as a fulcrum. A force outward in the vehicle width direction acts on the 29th side. When force toward the vehicle width direction outside acts on the leaf side connecting portion 29 side of the hinge leaf 12, the locking claw 35 of the hinge leaf 12 is inserted through the claw insertion hole 24 of the locking plate portion 17 of the hinge base 11. Thus, it moves outward in the vehicle width direction and comes into contact with the locking plate portion 17 outside the claw insertion hole 24 in the vehicle width direction. That is, the locking claw 35 of the hinge leaf 12 and the locking plate portion 17 of the hinge base 11 are engaged, and the locking plate portion 17 is behind the front edge portion 15 c of the leaf support plate portion 15. The movement of the (outer arm portion 22 and the leaf side connecting portion 29) to the outside in the vehicle width direction is restricted. For this reason, when a load is input to the closed bonnet 3 from the front of the vehicle, it is possible to reduce the burden on the connecting portion between the hinge leaf 12 and the hinge base 11. Breakage of the connecting portion can be prevented.

従って、本実施形態によれば、ボンネット３に対して車両前方から荷重が入力した際に、ヒンジリーフ１２とヒンジベース１１との連結部分の破断を防止することができる。 Therefore, according to the present embodiment, when a load is input to the bonnet 3 from the front of the vehicle, it is possible to prevent the connecting portion between the hinge leaf 12 and the hinge base 11 from being broken.

また、ヒンジベース１１のリーフ支持板部１５には、リーフ支持板部１５を補強するベース側ビード２３が形成される。このため、閉止状態のボンネット３に対して車両前方から荷重が入力してリーフ支持板部１５の前縁部１５ｃとヒンジリーフ１２とが当接し、ヒンジリーフ１２からの荷重がリーフ支持板部１５に入力した際に、ベース側ビード２３によってリーフ支持板部１５の変形を防止することができる。また、ヒンジリーフ１２の外側アーム縦板部３３及び内側アーム縦板部４０には、側面視においてリーフ支持板部１５の前縁部１５ｃと交叉してヒンジリーフ１２を補強するリーフ側ビード３７が形成される。このため、このため、閉止状態のボンネット３に対して車両前方から荷重が入力してリーフ支持板部１５の前縁部１５ｃとヒンジリーフ１２とが当接しても、リーフ側ビード３７によってヒンジリーフ１２の折れ曲がり変形を防止することができる。このように、閉止状態のボンネット３に対して車両前方から荷重が入力した際に、リーフ支持板部１５及びヒンジリーフ１２の変形を防止することができるので、リーフ支持板部１５又はヒンジリーフ１２が変形してボンネット３が後方のフロントガラス６（図１参照）側へ移動してしまうことを防止することができる。 A base-side bead 23 that reinforces the leaf support plate 15 is formed on the leaf support plate 15 of the hinge base 11. Therefore, a load is input to the closed bonnet 3 from the front of the vehicle, the front edge portion 15c of the leaf support plate portion 15 and the hinge leaf 12 come into contact with each other, and the load from the hinge leaf 12 is applied to the leaf support plate portion 15. Can be prevented from being deformed by the base-side bead 23. The outer arm vertical plate portion 33 and the inner arm vertical plate portion 40 of the hinge leaf 12 have leaf side beads 37 that reinforce the hinge leaf 12 by crossing the front edge portion 15c of the leaf support plate portion 15 in a side view. It is formed. For this reason, even if a load is applied to the closed bonnet 3 from the front of the vehicle and the front edge 15c of the leaf support plate 15 and the hinge leaf 12 come into contact with each other, the leaf bead 37 causes the hinge leaf Twelve bending deformations can be prevented. In this way, when a load is input from the front of the vehicle to the closed bonnet 3, the leaf support plate 15 and the hinge leaf 12 can be prevented from being deformed, so that the leaf support plate 15 or the hinge leaf 12 can be prevented. It is possible to prevent the bonnet 3 from moving toward the rear windshield 6 (see FIG. 1) due to deformation.

なお、本実施形態では、外側アーム部２２と内側アーム部３０との境界部３９を、側面視においてリーフ支持板部１５の前縁部１５ｃよりも僅かに前方に配置し、外側アーム縦板部３３の車幅方向内側面３６の略全域を、ベース外面２８に対向させたが、これに限定されるものではない。例えば、外側アーム部２２をリーフ支持板部１５の前縁部１５ｃよりも大きく前方まで延ばしてもよい。この場合、外側アーム縦板部３３の車幅方向内側面３６のうち、リーフ支持板部１５の前縁部１５ｃよりも後方の領域がベース外面２８と対向する。 In the present embodiment, the boundary portion 39 between the outer arm portion 22 and the inner arm portion 30 is disposed slightly forward of the front edge portion 15c of the leaf support plate portion 15 in a side view, and the outer arm vertical plate portion. Although substantially the entire region of the inner side surface 36 of the vehicle width direction 33 is opposed to the outer surface 28 of the base, it is not limited to this. For example, the outer arm portion 22 may extend to the front larger than the front edge portion 15 c of the leaf support plate portion 15. In this case, of the inner side surface 36 in the vehicle width direction of the outer arm vertical plate portion 33, a region behind the front edge portion 15 c of the leaf support plate portion 15 faces the base outer surface 28.

また、ヒンジリーフ１２の形状は、上記に限定されるものではなく、ボンネット側連結部３１がリーフ側連結部２９よりも車幅方向内側に配置され、且つ閉止状態でボンネット側連結部３１がリーフ側連結部２９よりも前方に配置されるものであれば、他の形状であってよい。 Further, the shape of the hinge leaf 12 is not limited to the above, and the bonnet side connecting portion 31 is disposed on the inner side in the vehicle width direction with respect to the leaf side connecting portion 29 and the bonnet side connecting portion 31 is in the closed state. Any other shape may be used as long as it is arranged in front of the side connecting portion 29.

また、ヒンジベース１１の形状は、上記に限定されるものではない。例えば、リーフ支持板部１５は、側面視において前側が低く、後側が高い略三角形状でなくてもよく、リーフ支持板部１５の前縁部１５ｃが、側面視においてヒンジピン１３の軸心ＣＬよりも前方でヒンジリーフ１２と交叉する形状であればよい。 Further, the shape of the hinge base 11 is not limited to the above. For example, the leaf support plate portion 15 may not have a substantially triangular shape with a low front side and a high rear side in a side view, and the front edge portion 15c of the leaf support plate portion 15 is more than the axial center CL of the hinge pin 13 in the side view. Also, any shape that crosses the hinge leaf 12 at the front may be used.

また、本実施形態では、ヒンジリーフ１２に係止爪３５を設け、ヒンジベース１１の係止板部１７に爪挿入孔２４を設け、係止爪３５と爪挿入孔２４よりも車幅方向外側の係止板部１７とを係合させることにより、リーフ支持板部１５の前縁部１５ｃよりも後方のヒンジリーフ１２の車幅方向外側への移動を規制したが、リーフ支持板部１５の前縁部１５ｃよりも後方のヒンジリーフ１２の車幅方向外側への移動を規制する方法は、これに限定されるものではない。例えば、ヒンジリーフ１２の外側アーム部２２の外フランジ部３４に爪挿入孔を設け、閉止状態で前記爪挿入孔を後方から前方へ挿通する突出部（ストッパ部）をヒンジベース１１の係止板部１７の前面から前方へ突出させてもよい。この場合、閉止状態のボンネット３に対して車両前方から荷重が入力した際に、外側アーム部２２の外フランジ部３４のうち爪挿入孔よりも車幅方向内側の領域（係合部）がヒンジベース１１の前記突出部と係合する。または、ヒンジリーフ１２の外側アーム部２２よりも僅かに車幅方向外側に配置されて、ヒンジベース１１の係止板部１７の前面から前方へ突出する突出部（ストッパ部）を設けてもよい。この場合、閉止状態のボンネット３に対して車両前方から荷重が入力した際に、ヒンジリーフ１２の外側アーム部２２の一部の領域（係合部）が、ヒンジベース１１の前記突出部に当接することによって、リーフ支持板部１５の前縁部１５ｃよりも後方のヒンジリーフ１２の車幅方向外側への移動を規制する。 Further, in the present embodiment, the latching claw 35 is provided on the hinge leaf 12, the claw insertion hole 24 is provided on the locking plate portion 17 of the hinge base 11, and the vehicle width direction outer side than the locking claw 35 and the claw insertion hole 24. Although the movement of the hinge leaf 12 behind the front edge portion 15c of the leaf support plate portion 15 to the outside in the vehicle width direction is restricted by engaging with the locking plate portion 17, the leaf support plate portion 15 The method of restricting the movement of the hinge leaf 12 behind the front edge portion 15c to the outside in the vehicle width direction is not limited to this. For example, a claw insertion hole is provided in the outer flange portion 34 of the outer arm portion 22 of the hinge leaf 12, and a protruding portion (stopper portion) that passes through the claw insertion hole from the rear to the front in the closed state is used as a locking plate for the hinge base 11. You may make it protrude from the front surface of the part 17 ahead. In this case, when a load is input to the closed bonnet 3 from the front of the vehicle, a region (engagement portion) on the inner side in the vehicle width direction than the claw insertion hole of the outer flange portion 34 of the outer arm portion 22 is hinged. The base 11 is engaged with the protruding portion. Alternatively, a protruding portion (stopper portion) that is disposed slightly outside in the vehicle width direction than the outer arm portion 22 of the hinge leaf 12 and protrudes forward from the front surface of the locking plate portion 17 of the hinge base 11 may be provided. . In this case, when a load is input from the front of the vehicle to the closed bonnet 3, a partial region (engagement portion) of the outer arm portion 22 of the hinge leaf 12 contacts the protruding portion of the hinge base 11. By contact, the movement of the hinge leaf 12 at the rear of the leaf support plate portion 15 to the outside in the vehicle width direction is restricted from the front edge portion 15c.

また、本実施形態では、ヒンジリーフ１２のリーフ側連結部２９側に車幅方向外側への力が作用した際に、ヒンジリーフ１２の係止爪３５が、車幅方向外側へ移動して爪挿入孔２４よりも車幅方向外側の係止板部１７と係合したが、これに限定されるものではなく、ヒンジリーフ１２の係止爪３５が、車幅方向外側へ移動する前に係止板部１７と係合していてもよい。すなわち、閉止状態で、ヒンジリーフ１２の係止爪３５とヒンジベース１１の係止板部１７とが当接して係合していてもよい。 Further, in the present embodiment, when a force toward the vehicle width direction outside acts on the leaf side connecting portion 29 side of the hinge leaf 12, the locking claw 35 of the hinge leaf 12 moves to the vehicle width direction outside and the claw The engagement plate portion 17 is engaged with the engagement plate portion 17 on the outer side in the vehicle width direction than the insertion hole 24. However, the present invention is not limited to this, and the engagement claw 35 of the hinge leaf 12 is engaged before moving outward in the vehicle width direction. It may be engaged with the stop plate portion 17. That is, the locking claw 35 of the hinge leaf 12 and the locking plate portion 17 of the hinge base 11 may be in contact with each other in the closed state.

また、本実施形態では、リーフ支持板部１５の前縁部１５ｃよりも後方のヒンジリーフ１２の車幅方向外側への移動を規制するために、ヒンジリーフ１２に係止爪（係合部）３５を設け、ヒンジベース１１の係止板部（ストッパ部）１７に爪挿入孔２４を設け、爪挿入孔２４よりも車幅方向側の係止板部１７をストッパ部として機能させたが、係合部及びストッパ部を設けなくてもよい。 Further, in this embodiment, in order to restrict the movement of the hinge leaf 12 behind the front edge portion 15c of the leaf support plate portion 15 to the outside in the vehicle width direction, the hinge leaf 12 is engaged with a locking claw (engagement portion). 35, the claw insertion hole 24 is provided in the locking plate portion (stopper portion) 17 of the hinge base 11, and the locking plate portion 17 on the vehicle width direction side of the claw insertion hole 24 is functioned as a stopper portion. The engaging part and the stopper part may not be provided.

以上、本発明について、上記実施形態に基づいて説明を行ったが、本発明は上記実施形態の内容に限定されるものではなく、当然に本発明を逸脱しない範囲で適宜変更が可能である。すなわち、この実施形態に基づいて当業者等によりなされる他の実施形態、実施例および運用技術等は全て本発明の範疇に含まれることは勿論である。 As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to the content of the said embodiment, Of course, it can change suitably in the range which does not deviate from this invention. That is, it is needless to say that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

１：車両
２：エンジンルーム
３：ボンネット
１０：ヒンジ
１１：ヒンジベース
１２：ヒンジリーフ（ヒンジアーム）
１３：ヒンジピン
１５：リーフ支持板部（アーム支持部）
１５ｃ：リーフ支持板部の前縁部（アーム支持部の前縁部）
１７：係止板部（ストッパ部）
２２：外側アーム部
２４：爪挿入孔
２８：ベース外面
２９：リーフ側連結部（軸支持部）
３１：ボンネット側連結部（ボンネット支持部）
３５：係止爪（係合部） 1: Vehicle 2: Engine room 3: Bonnet 10: Hinge 11: Hinge base 12: Hinge leaf (hinge arm)
13: Hinge pin 15: Leaf support plate (arm support)
15c: Front edge of leaf support plate (front edge of arm support)
17: Locking plate (stopper)
22: Outer arm portion 24: Claw insertion hole 28: Base outer surface 29: Leaf side connection portion (shaft support portion)
31: Bonnet side connection part (bonnet support part)
35: Locking claw (engagement part)

Claims

A vehicle hinge structure that rotatably supports the bonnet with respect to the vehicle body so that the hood opens and closes the engine room at the front of the vehicle,
A hinge base having an arm support and fixed to the vehicle body at the rear of the engine room;
A shaft support portion that is rotatably supported with respect to the arm support portion around a rotation shaft extending in the vehicle width direction, and is disposed on the vehicle width direction outer side of the base outer surface on the vehicle width direction outer side of the arm support portion; A bonnet support portion disposed on the vehicle width direction inner side than the shaft support portion and fixed to the bonnet, and the bonnet support portion is in the closed state in which the hood closes the engine room. A hinge arm disposed forward of,
The hinge arm has an outer arm portion that continuously extends from the shaft support portion toward the bonnet support portion side outside the base outer surface in the vehicle width direction,
The hinge structure for a vehicle according to claim 1, wherein the outer arm portion of the hinge arm has a region that overlaps the outer surface of the base of the arm support portion in the vehicle width direction in the vehicle closed direction in the closed state.

The hinge structure according to claim 1,
The front edge portion of the arm support portion of the hinge base crosses the hinge arm in front of the rotation shaft as viewed from the vehicle width direction,
The hinge base has a stopper portion arranged behind the front edge portion of the arm support portion,
The hinge arm has an engaging portion arranged at a position corresponding to the stopper portion of the hinge base in the closed state,
A load inward in the vehicle width direction acts on the bonnet support portion of the hinge arm in the closed state, and the front edge portion of the arm support portion serves as a fulcrum to the shaft support portion side of the hinge arm in the vehicle width direction. When an outward force is applied, the engagement portion of the hinge arm and the stopper portion of the hinge base engage with each other, and the stopper portion of the hinge base is more than the front edge portion of the arm support portion. The vehicle hinge structure characterized by restricting the rearward movement of the hinge arm in the vehicle width direction.