JP2011131855A

JP2011131855A - Cowl cover device

Info

Publication number: JP2011131855A
Application number: JP2009295449A
Authority: JP
Inventors: Motomu Koyama; 求小山; Yasumasa Horimizu; 康正堀水
Original assignee: Nihon Plast Co Ltd
Current assignee: Nihon Plast Co Ltd
Priority date: 2009-12-25
Filing date: 2009-12-25
Publication date: 2011-07-07
Anticipated expiration: 2029-12-25
Also published as: JP5618398B2

Abstract

<P>PROBLEM TO BE SOLVED: To effectively suppress the influence by the heat in a cowl cover device arranged close to a heat source. <P>SOLUTION: An opposing wall part 27 is separately located along the front side of a bulkhead part 26 of a cowl cover device 11, and a cylindrical part 30 with its inner side forming an air layer part 40 and both ends forming opening parts 41, 42 is constituted of the bulkhead part 26 and the opposing wall part 27. A high-temperature heat source A in an engine room is deviated to the right from the center position of the cylindrical part 30. When the heat from the heat source A is applied to the cowl cover device 11, the convection is naturally generated, in which the air introduced from the left opening part 41 is exhausted as hot air from the right opening part 42. High-temperature air can be efficiently exhausted, and the temperature rise of the air layer part 40 can be suppressed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、例えば、内燃機関、電気モータまたはバッテリなどを収納するフロントコンパートメントと隣接して配置されるカウルカバー装置に関する。 The present invention relates to a cowl cover device disposed adjacent to a front compartment that houses, for example, an internal combustion engine, an electric motor, or a battery.

従来、自動車の車体には、ボンネットフード下部のエンジンルームと車室の前側に位置するフロントガラスとの間のカウル部を覆う樹脂成形品のカウルカバーが取り付けられている。このカウルカバーは、カウル部を覆うカバー本体部を備え、このカバー本体部に、カウル部に外気を導入する通気口が設けられている。また、カバー本体部の前側には、隔壁部が設けられ、エンジンルームとカウル部とを区画している（例えば、特許文献１参照）。 2. Description of the Related Art Conventionally, a cowl cover of a resin molded product that covers a cowl portion between an engine room below a bonnet hood and a windshield positioned on the front side of a vehicle compartment is attached to the body of an automobile. The cowl cover includes a cover main body that covers the cowl. The cover main body is provided with a vent for introducing outside air into the cowl. In addition, a partition wall is provided on the front side of the cover main body, and partitions the engine room and the cowl (see, for example, Patent Document 1).

この隔壁部は、エンジンルームに隣接し、いわばエンジンルームに剥き出し状態でさらされているため、エンジンなどの熱源が近接して配置される場合には、この熱源からの熱気を直接に受けて加熱される。 Since this partition wall is adjacent to the engine room and exposed to the engine room, in other words, when a heat source such as an engine is placed in close proximity, it directly receives the heat from the heat source and heats it. Is done.

特開２００６−６２４７２号公報（第１頁、図５）JP 2006-62472 A (first page, FIG. 5)

上記のように、カウルカバーの隔壁部が熱源に近接して配置される場合には、隔壁部の保護やカウル部の温度上昇を防止するため、隔壁部に別体の遮熱カバーを固着する構成が考えられる。しかしながら、隔壁部に別体の遮熱カバーを固着する構成では、製造コストの低減や軽量化が困難になる問題を有している。 As described above, when the partition wall portion of the cowl cover is disposed close to the heat source, a separate heat shield cover is fixed to the partition wall portion in order to protect the partition wall portion and prevent the temperature of the cowl portion from rising. Configuration is conceivable. However, the configuration in which a separate heat shield cover is fixed to the partition wall has problems that it is difficult to reduce manufacturing cost and weight.

本発明は、このような点に鑑みなされたもので、熱による影響を効果的に抑制できるカウルカバー装置を提供することを目的とする。 This invention is made | formed in view of such a point, and it aims at providing the cowl cover apparatus which can suppress the influence by heat effectively.

請求項１記載のカウルカバー装置は、車両の熱源が配置されるフロントコンパートメントと車室のウインドシールドとの間のカウル部に設けられたカウルカバー装置であって、前記カウル部を覆うカバー本体部と、このカバー本体部の前側に連接され、前記フロントコンパートメントと前記カウル部との間を区画する隔壁部と、この隔壁部の前側に沿って離間して位置する対向壁部と、これら隔壁部と対向壁部との間に位置し、車幅方向に連続し両端部が開口する空気層部とを具備したことを特徴とするものである。 The cowl cover device according to claim 1 is a cowl cover device provided in a cowl portion between a front compartment in which a heat source of a vehicle is disposed and a windshield of a passenger compartment, and covers the cowl portion. A partition wall portion connected to the front side of the cover main body portion and partitioning the front compartment and the cowl portion; an opposing wall portion spaced apart along the front side of the partition wall portion; and the partition wall portions And an air layer portion which is located between the opposite wall portions and is continuous in the vehicle width direction and is open at both ends.

請求項２記載のカウルカバー装置は、請求項１記載のカウルカバー装置において、隔壁部及び対向壁部を備え内側を空気層部とし両端部を開口部とした筒状部を具備し、前記対向壁部は、車幅方向の長さ寸法の中央位置から外れた位置で熱源に対向するものである。 The cowl cover device according to claim 2 is the cowl cover device according to claim 1, further comprising a cylindrical portion having a partition wall portion and an opposing wall portion, the inside being an air layer portion, and both ends being openings. The wall portion faces the heat source at a position deviating from the center position of the length dimension in the vehicle width direction.

請求項３記載のカウルカバー装置は、請求項２記載のカウルカバー装置において、筒状部は、カバー本体部から一体に突設された隔壁部と、前記カバー本体部に連続する部分からヒンジ部を介して前側に一体に延設された部分が前記ヒンジ部から前記隔壁部側に折曲されかつ先端部が前記隔壁部側に固定された対向壁部とを備えたものである。 The cowl cover device according to claim 3 is the cowl cover device according to claim 2, wherein the tubular portion includes a partition wall portion integrally projecting from the cover main body portion, and a hinge portion from a portion continuous with the cover main body portion. A portion integrally extending to the front side through the wall is provided with a facing wall portion bent from the hinge portion to the partition wall portion side and having a distal end portion fixed to the partition wall portion side.

請求項１記載のカウルカバー装置によれば、フロントコンパートメントに配置された熱源からカウルカバー装置に加わる熱は、対向壁部から空気層部に伝わり、この空気層部の空気の流れに応じて車幅方向の両端部から随時排出される。隔壁部の一部に熱が蓄積して過度に加熱されることを防止し、カウルカバー装置を保護できるとともに、カウル部の温度上昇を抑制できる。構造が簡略で製造コストを低減できる。 According to the cowl cover device of the first aspect, the heat applied to the cowl cover device from the heat source disposed in the front compartment is transmitted from the opposing wall portion to the air layer portion, and the vehicle is adapted to the air flow in the air layer portion. It is discharged from both ends in the width direction as needed. It is possible to prevent heat from accumulating in a part of the partition wall portion and being heated excessively, thereby protecting the cowl cover device and suppressing an increase in the temperature of the cowl portion. The structure is simple and the manufacturing cost can be reduced.

請求項２記載のカウルカバー装置によれば、請求項１記載の効果に加え、隔壁部及び対向壁部が両端を開口部とした筒状部を構成したため、剛性を向上できる。対向壁部は、車幅方向の長さ寸法の中央位置から外れた位置で熱源に対向するため、筒状部の内側の空気層部に、熱源から加わる熱により熱源に近い側の開口部に向かう気流が発生し、高温の空気を効率良く排気して熱の蓄積を防止できる。 According to the cowl cover device of the second aspect, in addition to the effect of the first aspect, since the partition wall portion and the opposing wall portion constitute a cylindrical portion having both ends as openings, the rigidity can be improved. Since the opposing wall portion faces the heat source at a position deviating from the center position in the vehicle width direction, it is formed in the air layer portion inside the cylindrical portion at the opening near the heat source due to heat applied from the heat source. A flowing airflow is generated, and hot air can be efficiently exhausted to prevent heat accumulation.

請求項３記載のカウルカバー装置によれば、請求項２記載の効果に加え、隔壁部及び対向壁部をカバー本体部と一体に容易に構成でき、別体の遮熱部材を用いる構成に比べ、製造コストを低減できる。カウルカバー装置に大きな力が加わった場合は、ヒンジ部あるいは隔壁部側と対向壁部側とを固定した部分が破断することにより、筒状部の剛性が小さくなり、衝撃吸収特性を容易に良好にできる。 According to the cowl cover device of the third aspect, in addition to the effect of the second aspect, the partition wall portion and the opposing wall portion can be easily configured integrally with the cover main body portion, compared with a configuration using a separate heat shield member. Manufacturing cost can be reduced. When a large force is applied to the cowl cover device, the rigid part of the cylindrical part is reduced by breaking the part where the hinge part or the partition part side and the opposing wall part side are fixed, and the shock absorption characteristics are easily improved. Can be.

本発明のカウルカバー装置の一実施の形態を示す動作の説明図である。It is explanatory drawing of operation | movement which shows one Embodiment of the cowl cover apparatus of this invention. 同上カウルカバー装置を備えた車両の図３のＩ−Ｉ相当位置の断面図である。It is sectional drawing of the II equivalent position of FIG. 3 of the vehicle provided with the cowl cover apparatus same as the above. 同上カウルカバー装置の斜視図である。It is a perspective view of a cowl cover apparatus same as the above. 同上カウルカバー装置の製造工程を示す一部の断面図である。It is a partial cross section figure which shows the manufacturing process of a cowl cover apparatus same as the above. 同上カウルカバー装置の動作の説明図である。It is explanatory drawing of operation | movement of a cowl cover apparatus same as the above. 同上カウルカバー装置の動作の説明図である。It is explanatory drawing of operation | movement of a cowl cover apparatus same as the above. 本発明のカウルカバー装置の他の実施の形態を示す斜視図である。It is a perspective view which shows other embodiment of the cowl cover apparatus of this invention. 本発明のカウルカバー装置のさらに他の実施の形態を示す一部の断面図である。FIG. 6 is a partial cross-sectional view showing still another embodiment of the cowl cover device of the present invention. 本発明のカウルカバー装置のさらに他の実施の形態を示す一部の断面図である。FIG. 6 is a partial cross-sectional view showing still another embodiment of the cowl cover device of the present invention. 本発明のカウルカバー装置のさらに他の実施の形態を示す一部の断面図である。FIG. 6 is a partial cross-sectional view showing still another embodiment of the cowl cover device of the present invention. 本発明のカウルカバー装置のさらに他の実施の形態を示す一部の断面図である。FIG. 6 is a partial cross-sectional view showing still another embodiment of the cowl cover device of the present invention.

以下、本発明のカウルカバー装置の一実施の形態を図面を参照して説明する。 Hereinafter, an embodiment of a cowl cover device of the present invention will be described with reference to the drawings.

図２において、１は車両である自動車の車体で、この車体１には、フロントコンパートメントとしてのエンジンルーム２を覆う相手部材であるフード３と、車室４の前側に位置するウインドシールドとしてのフロントガラス５との間のカウル部６を覆い、カウルカバー装置11が車体１に取り付けられている。なお、以下、前後、上下、及び両側などの方向に付いては、車体１の直進方向を基準として説明し、矢印Ｆ方向が前方、矢印Ｕ方向が上方、図１に示す矢印Ｗ方向が左右方向すなわち両側方向である車幅方向である。 In FIG. 2, reference numeral 1 denotes a car body of a car, which is a vehicle. The car body 1 includes a hood 3 that is a mating member that covers an engine room 2 as a front compartment, and a windshield that is positioned in front of the passenger compartment 4. A cowl cover device 11 is attached to the vehicle body 1 so as to cover the cowl portion 6 between the glass 5. In the following description, the directions such as front and rear, up and down, and both sides will be described with reference to the straight traveling direction of the vehicle body 1, the arrow F direction is forward, the arrow U direction is upward, and the arrow W direction shown in FIG. It is a vehicle width direction which is a direction, ie, both-side direction.

そして、このカウル部６は、エアボックスなどとも呼ばれるもので、例えば鉄板にて形成されたカウルトップパネル12と、例えば鉄板にて形成され車体を構成する車体部材である車体パネル14とにより、上側を開口した樋状に形成されている。そして、カウルトップパネル12の上側部には、フロントガラス受部15が設けられ、ホットメルトなどの液密に密着するゴム質の接着剤などのシール材16により、フロントガラス５がカウルトップパネル12に固定されている。また、車体パネル14は、エクステンションパネルなどとも呼ばれるもので、後側部がカウルトップパネル12に固着された図示しない底板部となり、この底板部の前側部が前側上方に立ち上げられた前板部19と、この前板部19の上端部が前側に略水平に延設された支持板部20とが設けられている。そして、このカウル部６には、車室４内に外気を導入する図示しない空調装置の空気取入部が接続されているとともに、このカウル部６の一側である右側には、ワイパーのワイパーアームを駆動するモータなどが配置されている。 The cowl portion 6 is also called an air box or the like, and is formed by, for example, a cowl top panel 12 formed of an iron plate and a vehicle body panel 14 that is a body member that is formed of an iron plate and constitutes the vehicle body. It is formed in a bowl shape with an opening. A windshield receiving portion 15 is provided on the upper portion of the cowl top panel 12, and the windshield 5 is attached to the cowl top panel 12 by a sealing material 16 such as a hot-melt adhesive that is liquid-tightly adhered. It is fixed to. The vehicle body panel 14 is also called an extension panel or the like, and the rear side portion is a bottom plate portion (not shown) fixed to the cowl top panel 12, and the front side portion of the bottom plate portion is raised upward on the front side. 19 and a support plate portion 20 in which the upper end portion of the front plate portion 19 extends substantially horizontally to the front side. The cowl portion 6 is connected to an air intake portion of an air conditioner (not shown) that introduces outside air into the passenger compartment 4, and a wiper arm of a wiper is disposed on the right side of the cowl portion 6. The motor etc. which drive are arranged.

また、フード３は、車体１の前部に位置してエンジンルーム２を開閉可能に覆うボンネットフードであり、外側すなわち閉じた状態で上側に位置するフードアウタ部3aと、このフードアウタ部3aの内側すなわち閉じた状態で下側に若干の間隔を介して位置するフードインナ部3bとが、一体あるいは別体に形成されている。 The hood 3 is a hood hood that is positioned at the front portion of the vehicle body 1 and covers the engine room 2 so as to be openable and closable. The hood 3 is located outside, that is, in a closed state, and is located inside the hood outer portion 3a. The hood inner portion 3b positioned at a lower side with a small gap in the closed state is formed integrally or separately.

そして、カウルカバー装置11は、図１ないし図３に示すように、カウルトップカバーなどとも呼ばれ、フロントガラス５の前側下端の縁部5aとこのフロントガラス５の前方に位置するエンジンルーム２の後端との間のカウル部６すなわちカウルトップパネル12及び車体パネル14の上側を覆い、上側の外気部21と下側のエアボックス22とを区画形成している。また、このカウルカバー装置11は、例えば、ポリプロピレン（PP）、アクリロニトリル・ブタジエン・スチレン共重合体（ABS）、ポリアミド系合成樹脂などの熱可塑性樹脂を金型を用いて射出成形し、弾性的に変形可能な一体形成の長尺な樹脂成型品として形成されたカウルカバーにより構成されている。そして、カウルカバー装置11の平面形状は、図３に示すように、カウル部６に沿って車体１の両側方向Ｗすなわち車幅方向を長手方向とする長尺な略板状で中央部分が前側に突出するように緩やかに湾曲している。 As shown in FIGS. 1 to 3, the cowl cover device 11 is also called a cowl top cover or the like. The cowl cover device 11 has an edge 5 a at the front lower end of the windshield 5 and an engine room 2 positioned in front of the windshield 5. The cowl portion 6 between the rear end, that is, the upper side of the cowl top panel 12 and the vehicle body panel 14 is covered, and the upper outside air portion 21 and the lower air box 22 are partitioned. Further, the cowl cover device 11 is formed by injection-molding a thermoplastic resin such as polypropylene (PP), acrylonitrile / butadiene / styrene copolymer (ABS), polyamide synthetic resin, etc. It is constituted by a cowl cover formed as a deformable and integrally formed long resin molded product. As shown in FIG. 3, the planar shape of the cowl cover device 11 is a long, substantially plate-like shape having the longitudinal direction in both side directions W of the vehicle body 1, that is, the vehicle width direction, along the cowl portion 6, and the central portion is the front side It is gently curved to protrude.

また、このカウルカバー装置11の断面形状は、図２及び図３に示すように、基本的には、カウル部６を覆うカバー本体部24と、このカバー本体部24の後端部に設けられたウインドシールド取付部であるクリップ状の嵌着部25と、カバー本体部24の前側に直接あるいは間接に連接された隔壁部26、対向壁部27、フード対向部28、及び車体部材取付部29と、これら隔壁部26、対向壁部27、フード対向部28、及び車体部材取付部29の一部あるいは全部を含んで形成された筒状部30とを備えている。 Further, as shown in FIGS. 2 and 3, the cross-sectional shape of the cowl cover device 11 is basically provided at the cover body portion 24 covering the cowl portion 6 and the rear end portion of the cover body portion 24. Clip-like fitting part 25 which is a windshield attaching part, partition part 26 connected to the front side of cover body part 24 directly or indirectly, opposing wall part 27, hood opposing part 28, and vehicle body member attaching part 29 And a cylindrical portion 30 formed to include a part or all of the partition wall portion 26, the opposing wall portion 27, the hood opposing portion 28, and the vehicle body member attachment portion 29.

そして、カバー本体部24は、表面部とも言いうるもので、エンジンルーム２やフード３の形状及びワイパーの配置などに応じて適宜の形状を採るものであるが、本実施の形態では、車幅方向を長手方向とする板状の部材の前後方向の中央部が上方に湾曲して湾曲部31が形成されている。そして、この湾曲部31に、カウル部６に外気を導入可能な格子状などの空気取入口が形成されているとともに、適宜の位置に、ワイパーの軸が貫通する孔部32が形成されている。 The cover main body 24 can also be referred to as a surface portion, and takes an appropriate shape according to the shape of the engine room 2 and the hood 3, the arrangement of the wiper, and the like. A central portion in the front-rear direction of the plate-like member whose direction is the longitudinal direction is curved upward to form a curved portion 31. The curved portion 31 is formed with an air intake such as a lattice that can introduce outside air into the cowl portion 6, and a hole portion 32 through which the shaft of the wiper passes is formed at an appropriate position. .

また、嵌着部25は、ガラス接合部あるいはガラス当接部とも呼び得るもので、カバー本体部24の後端部が面一に延設された平板状の上部嵌着片35と、この上部嵌着片35の裏面側すなわち下側に沿って配置される下部嵌着片36とを備えている。そして、下部嵌着片36は、爪部とも呼び得るもので、上部嵌着片35と略平行な平板状の嵌着片本体部36aと、この嵌着片本体部36aの前端部を上部嵌着片35と一体に連結する連結片36bと、嵌着片本体部36aの後端部から下側に延設された案内片36cとを備えている。また、連結片36bは、一部の厚さ寸法が小さく形成され、弾性的に変形可能になっている。そこで、この嵌着部25は、上部嵌着片35と下部嵌着片36との隙間をフロントガラス５の縁部5aにあてがって、カウルカバー装置11を所定方向である後方に押し込むことにより、上下の嵌着片35，36がフロントガラス５を弾性的に挟持し、フロントガラス５の縁部5aに嵌着して取り付けられるようになっている。 Further, the fitting portion 25 can be called a glass bonding portion or a glass contact portion, and includes a flat plate-like upper fitting piece 35 in which the rear end portion of the cover main body portion 24 is extended to be flush with the upper portion. And a lower fitting piece 36 disposed along the back side, that is, the lower side of the fitting piece 35. The lower fitting piece 36 can also be referred to as a claw portion, and a flat plate-like fitting piece main body portion 36a substantially parallel to the upper fitting piece 35 and a front end portion of the fitting piece main body portion 36a are upper fitted. A connection piece 36b that is integrally connected to the attachment piece 35 and a guide piece 36c that extends downward from the rear end of the attachment piece main body 36a are provided. Further, the connecting piece 36b is formed with a partly small thickness dimension and is elastically deformable. Therefore, the fitting portion 25 is configured such that the gap between the upper fitting piece 35 and the lower fitting piece 36 is applied to the edge portion 5a of the windshield 5, and the cowl cover device 11 is pushed rearward in a predetermined direction. The upper and lower fitting pieces 35 and 36 elastically sandwich the windshield 5 and are fitted and attached to the edge 5a of the windshield 5.

また、筒状部30は、隔壁部26、対向壁部27、フード対向部28、及び車体部材取付部29によりカバー本体部24の前端部に沿って連接された略四角筒状の中空状に形成され、内側が空気層部40となるとともに、左右の端部すなわち車幅方向の両端部が開口した開口部41，42となっている。すなわち、この空気層部40は、隔壁部26の前側に位置する遮熱空間であり、車幅方向の両端が開口し一端である左端の開口部41から他端である右端の開口部42まで連通して空気が流れるように形成されている。 Further, the cylindrical portion 30 is formed in a substantially square cylindrical hollow shape connected along the front end portion of the cover main body portion 24 by the partition wall portion 26, the opposing wall portion 27, the hood opposing portion 28, and the vehicle body member mounting portion 29. The inner side is the air layer portion 40, and the left and right end portions, that is, the opening portions 41 and 42 that are open at both ends in the vehicle width direction are formed. That is, the air layer portion 40 is a heat shield space located on the front side of the partition wall portion 26, and opens at both ends in the vehicle width direction from the left end opening 41 which is one end to the right end opening 42 which is the other end. It is formed so that air flows in communication.

そして、隔壁部26は、カウルカバー基本面とも呼び得るもので、カバー本体部24の前端部から下方に向かい垂直あるいは垂直状に、本実施の形態では、下方かつ若干後方に傾斜して、板状に突設されている。そして、この隔壁部26は、カバー本体部24すなわちカウルカバー装置11の全長あるいはほぼ全長にわたって連続して形成され、エンジンルーム２とカウル部６とを前後に区画している。なお、この隔壁部26の上端部、すなわち隔壁部26がカバー本体部24に接する部分には、隔壁部26の他の部分より厚さ寸法が小さく強度の小さい変形可能部26aが形成されている。 The partition wall portion 26 can also be called a cowl cover basic surface. In the present embodiment, the partition wall portion 26 is inclined downward and slightly rearward in a vertical or vertical shape from the front end portion of the cover body portion 24. It protrudes in a shape. The partition wall portion 26 is formed continuously over the entire length or almost the entire length of the cover main body 24, that is, the cowl cover device 11, and partitions the engine room 2 and the cowl portion 6 back and forth. Note that a deformable portion 26a having a smaller thickness and a smaller strength than other portions of the partition wall portion 26 is formed at the upper end portion of the partition wall portion 26, that is, the portion where the partition wall portion 26 is in contact with the cover main body portion 24. .

また、フード対向部28は、シール取付部、フードシール取付部、あるいはフードシール部などとも呼び得るもので、隔壁部26の上端部すなわちカバー本体部24の前端部から前方に向かい水平板状に延設され、本実施の形態では、カバー本体部24の前端部から若干前側上方に向かって傾斜して延設され、さらに前側に水平状に延設されている。そして、このフード対向部28の上部には、上側から接着あるいは嵌合などして、弾性変形可能なシール部材としての別体のフードシール44が取り付けられている。そして、このフードシール44は、例えばゴム製あるいは熱可塑性エラストマー製の筒状をなし、閉じた状態のフード３に密着し、エンジンルーム２からの熱気や臭気を遮蔽するようになっている。なお、このフードシール44は、図２において、フード３に当接して変形した形状を示し、他の図においては、外部から力が加わっていない状態の形状を仮想線(２点鎖線)で示している。 Further, the hood facing portion 28 can be called a seal mounting portion, a hood seal mounting portion, or a hood seal portion, and the like. In the present embodiment, the cover body 24 extends from the front end portion of the cover main body 24 while being inclined slightly upward toward the front side, and is further extended horizontally to the front side. A separate hood seal 44 as an elastically deformable seal member is attached to the upper portion of the hood facing portion 28 by bonding or fitting from above. The hood seal 44 has a cylindrical shape made of, for example, rubber or thermoplastic elastomer, and is in close contact with the closed hood 3 so as to shield hot air and odor from the engine room 2. The hood seal 44 shows a deformed shape in contact with the hood 3 in FIG. 2, and in other drawings, the shape in a state where no external force is applied is indicated by a virtual line (two-dot chain line). ing.

また、車体部材取付部29は、車体取付部あるいは車体固定部とも呼び得るもので、隔壁部26の下端部から前側に屈曲するようにして水平板状に延設されている。そして、この車体部材取付部29は、支持板部20上に載置され、さらに、この車体部材取付部29の所定の位置に形成された複数の取付孔29aなどの取付部が、図示しない樹脂製のクリップやボルトなどの取付具を用いて、あるいは取付部に一体成形したフック形状などにより、車体パネル14の支持板部20に着脱可能に固定されている。さらに、この車体部材取付部29の前端部からは、車幅方向に所定の間隔で、例えば４カ所から、下方に向かい取付部である取付片46が突設されているとともに、各取付片46に円孔状の取付部46aが形成されている。また、この車体部材取付部29と支持板部20との間には、図示しないシール手段が設けられ、エンジンルーム２からの熱気、臭気や音がカウル部６のエアボックス22に伝わらないように遮蔽している。 The vehicle body member attachment portion 29 can also be called a vehicle body attachment portion or a vehicle body fixing portion, and is extended in a horizontal plate shape so as to be bent from the lower end portion of the partition wall portion 26 to the front side. The vehicle body member attachment portion 29 is placed on the support plate portion 20, and furthermore, attachment portions such as a plurality of attachment holes 29a formed at predetermined positions of the vehicle body member attachment portion 29 are not illustrated. It is detachably fixed to the support plate portion 20 of the vehicle body panel 14 by using a fixture such as a clip or bolt made of metal, or by a hook shape formed integrally with the attachment portion. Further, from the front end portion of the vehicle body member mounting portion 29, mounting pieces 46 as mounting portions project downward from the front end portion of the vehicle body at predetermined intervals, for example, from four locations, and each mounting piece 46 A circular hole-like mounting portion 46a is formed in the upper portion. Further, a sealing means (not shown) is provided between the vehicle body member mounting portion 29 and the support plate portion 20 so that hot air, odor and sound from the engine room 2 are not transmitted to the air box 22 of the cowl portion 6. Shielded.

また、対向壁部27は、細長矩形状の略平板状をなし、隣接する部分より厚さ寸法が小さく変形可能なヒンジ部48を介して、フード対向部28の前端部から延設されている。このヒンジ部48は、対向壁部27の全長にわたり薄肉に形成されたいわば肉抜き部であり、金型によりあるいは後加工により、上側から凹設されるように形成されている。さらに、車体部材取付部29の取付片46に対応し、対向壁部27の先端部からは、車幅方向に所定の間隔で、例えば４カ所から、取付部である取付片49が突設されているとともに、各取付片49に円孔状の取付部49aが形成されている。そして、この対向壁部27は、金型で形成された成型状態では、図４に示すように、フード対向部28と同一平面状に形成されている。この状態から、対向壁部27をヒンジ部48を支点として矢印Ｂに示すように下側後方に屈曲し、各取付片49を取付片46に重ねていわばクリップ固定部とし、このクリップ固定部に取付手段としてのクリップ51を取付部46a，49aに圧入して係合しあるいは挿入してかしめなどすることにより、隔壁部26とほぼ平行な状態で位置決めして固定され、筒状部30を構成する。また、この状態で、対向壁部27は、カバー本体部24すなわちカウルカバー装置11の全長あるいはほぼ全長にわたって連続して形成され、すなわち、隔壁部26の前方に全長あるいはほぼ全長にわたって対向して配置され、本実施の形態では、隔壁部26より若干短く形成されている。すなわち、この対向壁部27は、隔壁部26と一体に形成すなわち同時に成形されるとともに、ヒンジ部48で折り曲げられた対向壁部27により、筒形状の筒状部30が形成されている。 Further, the opposing wall portion 27 has an elongated rectangular substantially flat plate shape, and extends from the front end portion of the hood facing portion 28 via a hinge portion 48 that can be deformed with a thickness dimension smaller than that of an adjacent portion. . The hinge portion 48 is a so-called thinned portion formed thinly over the entire length of the opposing wall portion 27, and is formed so as to be recessed from the upper side by a mold or by post-processing. Furthermore, corresponding to the mounting pieces 46 of the vehicle body member mounting portion 29, mounting pieces 49 as mounting portions protrude from the front end portion of the opposing wall portion 27 at predetermined intervals in the vehicle width direction, for example, from four locations. In addition, each attachment piece 49 is formed with a circular attachment portion 49a. And this opposing wall part 27 is formed in the same plane as the food | hood opposing part 28, as shown in FIG. 4 in the molding state formed with the metal mold | die. From this state, the opposing wall portion 27 is bent downward and rearward as indicated by an arrow B with the hinge portion 48 as a fulcrum, and each attachment piece 49 is overlapped with the attachment piece 46 to form a clip fixing portion. A clip 51 as an attachment means is press-fitted into the attachment portions 46a and 49a to be engaged or inserted and caulked to be positioned and fixed in a state substantially parallel to the partition wall portion 26, thereby forming the cylindrical portion 30. To do. Further, in this state, the opposing wall portion 27 is continuously formed over the entire length or almost the entire length of the cover main body portion 24, that is, the cowl cover device 11, that is, disposed so as to face the entire length or almost the entire length in front of the partition wall portion 26. In this embodiment, it is formed slightly shorter than the partition wall portion 26. That is, the opposing wall portion 27 is formed integrally with the partition wall portion 26, that is, is formed at the same time, and the cylindrical wall portion 30 is formed by the opposing wall portion 27 bent by the hinge portion 48.

また、図３に示すように、筒状部30の内側には、車幅方向に所定の間隔で、隔壁部26と車体部材取付部29とを連結する補強用の板状のリブ部53がこれら隔壁部26及び車体部材取付部29と一体に形成されている。 Further, as shown in FIG. 3, a reinforcing plate-like rib portion 53 that connects the partition wall portion 26 and the vehicle body member mounting portion 29 at a predetermined interval in the vehicle width direction is provided inside the cylindrical portion 30. The partition wall portion 26 and the vehicle body member attachment portion 29 are integrally formed.

そして、このように形成されたカウルカバー装置11は、後端部の嵌着部25をフロントガラス５の縁部5aに挿入して嵌着し、前端部の車体部材取付部29を支持板部20上に載置し取付具を用いて固定することにより、車体１の前部のエンジンルーム２から熱を受ける部位に取り付けられる。また、フード３を閉じた状態で、フード対向部28に支持されたフードシール44がフード３に密着し、エンジンルーム２からの熱気や臭気を遮蔽する。また、カバー本体部24の湾曲部31の前後の部分が、樋として機能し、雨水などを両側方に排水する。 Then, the cowl cover device 11 formed in this way inserts and fits the fitting portion 25 at the rear end portion into the edge portion 5a of the windshield 5, and attaches the vehicle body member attachment portion 29 at the front end portion to the support plate portion. By mounting on 20 and fixing with a fixture, it is attached to a part that receives heat from the engine room 2 at the front of the vehicle body 1. Further, with the hood 3 closed, the hood seal 44 supported by the hood facing portion 28 is in close contact with the hood 3 and shields hot air and odor from the engine room 2. Further, the front and back portions of the curved portion 31 of the cover main body 24 function as a ridge and drain rainwater and the like on both sides.

さらに、エンジンルーム２には、内燃機関であるエンジン、バッテリー、あるいは電気モーターなどのモーターなどが搭載され、これら搭載機器の廃熱にて雰囲気温度が上昇するとともに、図１及び図３に示すように、カウルカバー装置11を車体１に取り付けた状態で、このカウルカバー装置11の筒状部30を構成する対向壁部27の壁面の前方に近接して対向し、車両の運転時に高温となる熱源Ａが配置されている。この熱源Ａの位置は、対向壁部27すなわち筒状部30に対し、車幅方向の中央部すなわちセンター位置ではなく、このセンター位置から左右いずれか一方にずれて開口部41，42までの寸法が異なる位置となっている。ここでは、熱源Ａは車体１の車幅方向の中央よりも右側にずれて配置され、筒状部30の内側の空気層部40の長さは、熱源Ａが対向する位置と筒状部30の左側の端部の開口部41との間の長さL1の方が、熱源Ａが対向する位置と筒状部30の右側の端部の開口部42との間の長さL2よりも、大きく設定されている。 Further, the engine room 2 is equipped with an engine such as an internal combustion engine, a battery, or a motor such as an electric motor. As shown in FIGS. 1 and 3, the ambient temperature rises due to waste heat of these mounted devices. In the state where the cowl cover device 11 is attached to the vehicle body 1, the cowl cover device 11 is opposed to the front of the wall surface of the opposing wall portion 27 constituting the tubular portion 30 of the cowl cover device 11, and becomes hot during driving of the vehicle. A heat source A is arranged. The position of the heat source A is not the central portion in the vehicle width direction, that is, the center position with respect to the opposing wall portion 27, that is, the tubular portion 30, but is shifted to either the left or right from the center position to the openings 41, 42. Are in different positions. Here, the heat source A is arranged so as to be shifted to the right side from the center of the vehicle body 1 in the vehicle width direction, and the length of the air layer portion 40 inside the cylindrical portion 30 is the same as the position where the heat source A faces the cylindrical portion 30. The length L1 between the opening 41 at the left end of the tube and the length L2 between the position facing the heat source A and the opening 42 at the right end of the cylindrical portion 30 is It is set large.

そこで、熱源Ａからの熱がカウルカバー装置11に加わると、まず、この熱は対向壁部27により遮熱されるとともに、この熱は対向壁部27に伝わり、さらに、この対向壁部27から筒状部30の内側の空気層部40に伝わる。すると、この空気層部40では、熱せられた空気が膨張しながら左右に伝わるが、熱源Ａに近い一側ここでは右側の開口部42から空気が排出されやすく、左側の開口部41から導入された空気(冷気)が右側の開口部42から熱気となって排出される矢印Ｃ方向の空気の流れ(気流)である対流が自然に発生する。そして、この対流により、高温の空気は右側の開口部42から効率良く排気され、すなわち、空気層部40内の空気を循環、排出するとともに、熱源Ａからの熱は空気層部40から効率良く排出され、空気層部40の温度上昇が抑制される。このようにして、熱源Ａの熱は対向壁部27及び空気層部40によりカウルカバー装置11の機能部位である隔壁部26へ直接伝わらずこれら対向壁部27及び空気層部40で分散されるとともに、対流により熱源Ａの熱の隔壁部26への伝わりが抑制され、エンジンルーム２とカウル部６とを気密に区画する隔壁部26が部分的に高温になることがなく、最高温度を低減して保護できる。そして、これら対向壁部27、空気層部40、及び隔壁部26の三層構造により、熱が通過する断熱層を増やし、カウル部６すなわちエアボックス22に伝わる熱の通過量を抑制し、エアボックス22内の温度上昇が抑制される。 Therefore, when heat from the heat source A is applied to the cowl cover device 11, first, this heat is shielded by the opposing wall portion 27, and this heat is transmitted to the opposing wall portion 27. Is transmitted to the air layer portion 40 inside the shaped portion 30. Then, in this air layer portion 40, the heated air is transmitted to the left and right while expanding, but on the one side close to the heat source A, here, the air is easily discharged from the right side opening 42, and is introduced from the left side opening 41. Convection, which is a flow of air (airflow) in the direction of arrow C, is naturally generated by the air (cold air) discharged as hot air from the right-side opening 42. By this convection, hot air is efficiently exhausted from the right-side opening 42, that is, the air in the air layer 40 is circulated and discharged, and the heat from the heat source A is efficiently exhausted from the air layer 40. As a result, the temperature rise of the air layer 40 is suppressed. In this way, the heat of the heat source A is not directly transmitted to the partition wall portion 26 which is a functional part of the cowl cover device 11 by the facing wall portion 27 and the air layer portion 40 but is dispersed by the facing wall portion 27 and the air layer portion 40. At the same time, the transfer of heat from the heat source A to the partition wall portion 26 is suppressed by convection, and the partition wall portion 26 that hermetically partitions the engine room 2 and the cowl portion 6 is not partially heated, and the maximum temperature is reduced. Can be protected. The three-layer structure of the facing wall portion 27, the air layer portion 40, and the partition wall portion 26 increases the heat insulating layer through which heat passes and suppresses the amount of heat transmitted to the cowl portion 6, that is, the air box 22, The temperature rise in the box 22 is suppressed.

また、筒状部30は、筒状をなしているため剛性が向上し、熱により一部が軟化するなどして剛性が低下した場合にも、単なる板状の構成よりも形状が保持される。そこで、通常の使用状態においては、隔壁部26によりエンジンルーム２とカウル部６とを確実に区画できるとともに、フード対向部28すなわちフードシール44の位置を所定の位置に保持して、フードシール44をフード３に密着させ、エンジンルーム２からの外部への音や熱の漏出が抑制される。 In addition, since the cylindrical portion 30 has a cylindrical shape, the rigidity is improved, and even when the rigidity is reduced due to a part of the cylindrical portion being softened by heat, the shape is maintained rather than a simple plate-like configuration. . Therefore, in a normal use state, the engine compartment 2 and the cowl portion 6 can be reliably partitioned by the partition wall portion 26, and the hood facing portion 28, that is, the position of the hood seal 44 is held at a predetermined position so that the hood seal 44 Is closely attached to the hood 3, and leakage of sound and heat from the engine room 2 to the outside is suppressed.

さらに、歩行者がフード３に上方から衝突する強い力を受けた際などフード３を下方に押し下げる方向の衝撃が作用した場合には、他の部分に対して相対的に強度が小さく容易に破断する弱部であるヒンジ部48及び取付片46，49同士を接合した部分のいずれか一方あるいは両方が解放され、衝撃を吸収しつつ筒状部30すなわちカウルカバー装置11の剛性を低下させ、下方に変形し易くなり、過大な反力の上昇を防止して、適切な反力で衝撃を吸収する。例えば、図５に示すように、下端のクリップ51が外れ、あるいはクリップ51が破断し、あるいは取付片46，49の一方あるいは両方が破断するなどして、取付片46，49同士が外れ、あるいは、図６に示すように、上端のヒンジ部48が破断して、衝突エネルギーを吸収し、歩行者保護に適した所望の衝撃吸収特性が実現される。 Furthermore, when an impact in the direction of pushing down the hood 3 acts, such as when a pedestrian receives a strong force that collides with the hood 3 from above, the strength is relatively small with respect to the other parts and it is easily broken. One or both of the hinge part 48, which is a weak part, and the part where the mounting pieces 46, 49 are joined to each other are released, and the rigidity of the cylindrical part 30, that is, the cowl cover device 11, is reduced while absorbing the impact. It is easy to deform and prevents an excessive increase of the reaction force and absorbs an impact with an appropriate reaction force. For example, as shown in FIG. 5, when the clip 51 at the lower end is detached, the clip 51 is broken, or one or both of the attachment pieces 46, 49 are broken, or the attachment pieces 46, 49 are separated from each other, or As shown in FIG. 6, the hinge portion 48 at the upper end is broken to absorb the collision energy, and a desired shock absorption characteristic suitable for pedestrian protection is realized.

このように、本実施の形態によれば、車両の熱源Ａが配置されるエンジンルーム２と車室４のフロントガラス５との間のカウル部６に設けられたカウルカバー装置11であって、カウル部６を覆うカバー本体部24と、このカバー本体部24の前側に連接されてエンジンルーム２とカウル部６との間を区画する隔壁部26とに加え、この隔壁部26の前側に沿って離間して位置する対向壁部27を備え、これら隔壁部26と対向壁部27との間を車幅方向に連続し左右の両端部が開口する遮熱空間である空気層部40としたため、エンジンルーム２に配置された熱源Ａからカウルカバー装置11に加わる熱は、対向壁部27から空気層部40に伝わり、この空気層部40の空気の流れに応じて車幅方向の左右の両端部から随時排出できる。そこで、隔壁部26の一部に熱が蓄積して過度に加熱されることを防止し、隔壁部26の局部的な熱の蓄積による温度の上昇を防止して、カウルカバー装置11を保護できるとともに、カウル部６の温度上昇を抑制できるとともに、簡略な構造で製造コストを低減できる。 Thus, according to the present embodiment, the cowl cover device 11 is provided in the cowl portion 6 between the engine room 2 where the vehicle heat source A is disposed and the windshield 5 of the vehicle compartment 4, In addition to the cover body portion 24 covering the cowl portion 6 and the partition wall portion 26 connected to the front side of the cover body portion 24 and partitioning the engine room 2 and the cowl portion 6, along the front side of the partition wall portion 26 Because it is provided with an opposing wall portion 27 that is spaced apart, and an air layer portion 40 that is a heat shielding space that is continuous between the partition wall portion 26 and the opposing wall portion 27 in the vehicle width direction and opens at both left and right ends. The heat applied to the cowl cover device 11 from the heat source A disposed in the engine room 2 is transmitted from the opposing wall portion 27 to the air layer portion 40, and the left and right sides in the vehicle width direction according to the air flow of the air layer portion 40. It can be discharged from both ends at any time. Therefore, it is possible to protect the cowl cover device 11 by preventing heat from being accumulated in a part of the partition wall portion 26 and being excessively heated, and preventing temperature rise due to local heat accumulation in the partition wall portion 26. In addition, the temperature rise of the cowl portion 6 can be suppressed, and the manufacturing cost can be reduced with a simple structure.

また、隔壁部26及び対向壁部27は、対向壁部27及び車体部材取付部29で上下を連接され、内側を空気層部40とし両端部を開口部41，42とした筒状部30を構成するため、剛性を向上できるとともに、空気層部40の空気を円滑かつ確実に左右の端部の開口部41，42まで案内し、効率良く排気できる。 The partition wall portion 26 and the opposing wall portion 27 are connected to the upper and lower sides by the opposing wall portion 27 and the vehicle body member mounting portion 29, and the cylindrical portion 30 having the air layer portion 40 on the inner side and the opening portions 41 and 42 on both ends is provided. As a result, the rigidity can be improved, and the air in the air layer portion 40 can be smoothly and reliably guided to the openings 41 and 42 at the left and right end portions to be efficiently exhausted.

また、対向壁部27は、熱源Ａに対して左右不等長の筒状であり、車幅方向の長さ寸法の中央位置から外れた位置で熱源Ａに対向するため、筒状部30の内側の空気層部40に、熱源Ａから加わる熱により熱源Ａに近い側の開口部41，42、ここでは右側の開口部42に向かう気流が発生し、高温の空気を効率良く排気して熱の蓄積を防止できる。 Further, the opposing wall portion 27 has a cylindrical shape that is unequal to the left and right with respect to the heat source A, and faces the heat source A at a position deviating from the center position of the length dimension in the vehicle width direction. In the air layer 40 on the inner side, the heat applied from the heat source A generates an air flow toward the openings 41 and 42 on the side close to the heat source A, here the right side opening 42, efficiently exhausting high-temperature air to heat Can be prevented.

このようにして、エンジンルーム２から受ける熱によるカウルカバー装置11の変形及び劣化を抑制し、エンジンルーム２から受ける熱によるカウル部６のエアボックスの温度上昇を抑制し、エアベントの温度の上昇を抑制して、車室に導入される空気の温度上昇を抑制できる。いわば、カウルカバーの機能部位に受ける熱を軽減し、熱害を無くすことができる。 In this way, the deformation and deterioration of the cowl cover device 11 due to the heat received from the engine room 2 is suppressed, the temperature rise of the air box of the cowl portion 6 due to the heat received from the engine room 2 is suppressed, and the temperature of the air vent is increased. It can suppress and the temperature rise of the air introduce | transduced into a vehicle interior can be suppressed. In other words, the heat received by the functional part of the cowl cover can be reduced and the heat damage can be eliminated.

また、上記においては、断熱性について説明したが、断熱性と同様に、隔壁部26、対向壁部27、及び空気層部40により構成される筒状部30により、遮音性を向上でき、エンジンルーム２からの騒音が車外及び車室４内に通過することを抑制でき、断熱・遮音構造とすることができる。 Further, in the above description, the heat insulating property has been described, but the sound insulating property can be improved by the cylindrical portion 30 including the partition wall portion 26, the opposing wall portion 27, and the air layer portion 40, as in the case of the heat insulating property. The noise from the room 2 can be prevented from passing outside the vehicle and inside the vehicle compartment 4, and a heat insulation / sound insulation structure can be obtained.

また、筒状部30は、カバー本体部24と一体に突設された隔壁部26と、カバー本体部24に連続するフード対向部28からヒンジ部48を介して前側に一体に延設された部分がヒンジ部48から下側すなわち隔壁部26側に折曲された対向壁部27とを備え、この対向壁部27の先端側の取付片49が、隔壁部26から延設された車体部材取付部29の取付片49に固定して筒状部30が構成されている。このように、一体成形のヒンジ構造により、隔壁部26及び対向壁部27を備えた筒状部30をカバー本体部24と一体に容易に構成でき、カウルカバー装置11を製造する金型の構成を簡略化できるとともに、部品点数を削減でき、別体の遮熱カバーなどの遮熱部材を用いる構成に比べ、容易に軽量化できるとともに製造コストを低減できる。 Further, the cylindrical portion 30 is integrally extended to the front side through the hinge portion 48 from the partition portion 26 protruding integrally with the cover main body portion 24, and the hood facing portion 28 continuous to the cover main body portion 24. A vehicle body member in which a portion includes a facing wall portion 27 bent downward from the hinge portion 48, that is, the partition wall portion 26 side, and a mounting piece 49 on the tip side of the facing wall portion 27 extends from the partition wall portion 26 A cylindrical portion 30 is configured by being fixed to the attachment piece 49 of the attachment portion 29. In this way, the cylindrical part 30 having the partition wall part 26 and the opposing wall part 27 can be easily configured integrally with the cover body part 24 by the integrally formed hinge structure, and the configuration of the mold for manufacturing the cowl cover device 11 The number of parts can be reduced, and the weight can be easily reduced and the manufacturing cost can be reduced as compared with a configuration using a heat shield member such as a separate heat shield cover.

また、筒状の筒状部30により剛性を向上し、熱により一部が軟化するなどして剛性が低下した場合にも形状を保持でき、隔壁部26によりエンジンルーム２とカウル部６とを確実に区画できるとともに、フードシール44をフード３に密着させ、エンジンルーム２からの外部への音や熱の漏出を抑制できる。 Further, the cylindrical tubular portion 30 can improve the rigidity, and can retain the shape even when the rigidity is lowered due to a part of the heat being softened. The partition 26 can connect the engine room 2 and the cowl portion 6 to each other. In addition to being able to reliably partition, the hood seal 44 can be brought into close contact with the hood 3 to suppress leakage of sound and heat from the engine room 2 to the outside.

また、カウルカバー装置11に大きな力が加わった場合は、弱部であるヒンジ部48あるいは固定部分が破断することにより、筒状部30の剛性を所望の値まで小さくできる。そこで、車体１のフード３とフロントガラス５との間のカウル部６を覆うカウルカバー装置11として歩行者保護に好適な衝撃吸収特性を容易に実現でき、すなわち、歩行者保護性能を容易に向上できる。 Further, when a large force is applied to the cowl cover device 11, the rigidity of the cylindrical portion 30 can be reduced to a desired value by breaking the hinge portion 48 or the fixed portion which is a weak portion. Therefore, the cowl cover device 11 that covers the cowl portion 6 between the hood 3 and the windshield 5 of the vehicle body 1 can easily realize shock absorbing characteristics suitable for pedestrian protection, that is, easily improve pedestrian protection performance. it can.

なお、上記の実施の形態では、カウルカバー装置11の車幅方向の全域あるいは略全域に対向壁部27すなわち筒状部30すなわち空気層部40を設けたが、この構成に限られず、必要最小部位に設定することもできる。例えば、図７に示すように、カウルカバー装置11の車幅方向の中央部近傍のみに、対向壁部27すなわち筒状部30すなわち空気層部40を設けることもできる。 In the above-described embodiment, the opposing wall portion 27, that is, the cylindrical portion 30, that is, the air layer portion 40 is provided in the entire or substantially entire region of the cowl cover device 11 in the vehicle width direction. It can also be set to a part. For example, as shown in FIG. 7, the opposing wall portion 27, that is, the cylindrical portion 30, that is, the air layer portion 40 can be provided only in the vicinity of the center portion of the cowl cover device 11 in the vehicle width direction.

また、カウルカバー装置11は、樹脂にて一体に形成したカウルカバーの筒状部30の隔壁部26あるいは対向壁部27などに、別体の断熱材あるいは吸音材あるいは断熱吸音材を取り付けて、断熱性あるいは吸音性を向上することもできる。例えば、図８に示すように、筒状部30の内側の、隔壁部26の前面の、全面あるいは略全面あるいは少なくとも熱源Ａに対向する位置に、断熱吸音材55を貼り付けて、断熱性及び吸音性を向上できる。 Further, the cowl cover device 11 has a separate heat insulating material or sound absorbing material or heat insulating sound absorbing material attached to the partition wall portion 26 or the opposing wall portion 27 of the cylindrical portion 30 of the cowl cover integrally formed of resin, Thermal insulation or sound absorption can be improved. For example, as shown in FIG. 8, a heat insulating sound absorbing material 55 is attached to the inner surface of the tubular portion 30 on the entire surface or substantially the entire front surface of the partition wall portion 26 or at least at a position facing the heat source A, Sound absorption can be improved.

また、上記の実施の形態では、クリップ51により取付片46，49同士を取り付けたが、取付片46，49同士の固定方法はこの構成に限られない。例えば、図９に示すように、円孔状の取付部46a，49aを形成せず、取付片46，49の面同士を溶着留部56で溶着などして固着することもできる。また、例えば、図１０に示すように、取付片46，49の一方に爪状の嵌合部である取付部49bを一体に形成し、取付片46，49の他方に形成した円孔状の取付部46aに圧入して嵌合し、いわば爪嵌合により取付片46，49同士を固定することができる。 In the above-described embodiment, the attachment pieces 46 and 49 are attached by the clip 51, but the fixing method of the attachment pieces 46 and 49 is not limited to this configuration. For example, as shown in FIG. 9, the mounting portions 46 a and 49 a having a circular hole shape are not formed, but the surfaces of the mounting pieces 46 and 49 can be fixed by welding or the like with a welding portion 56. Further, for example, as shown in FIG. 10, a mounting portion 49 b which is a claw-like fitting portion is integrally formed on one of the mounting pieces 46 and 49, and a circular hole shape formed on the other of the mounting pieces 46 and 49 is formed. The fitting pieces 46 and 49 can be fixed to each other by press-fitting into the fitting portion 46a, so to speak, by so-called claw fitting.

また、上記の実施の形態においては、対向壁部27は平板状としたが、この構成に限られない。例えば、図１１に示すように、熱源Ａ付近の対向壁部27の後面側すなわち筒状部30内の空気層部40に突出するようにして、放熱手段として板状の放熱用リブ57を単数あるいは複数形成し、対向壁部27の熱を筒状部30内の空気層部40に効率良く放熱し、空気の循環により効率良く冷却することもできる。 Further, in the above-described embodiment, the opposing wall portion 27 has a flat plate shape, but is not limited to this configuration. For example, as shown in FIG. 11, a single plate-like heat-dissipating rib 57 is provided as a heat dissipating means so as to protrude from the rear surface side of the opposing wall portion 27 in the vicinity of the heat source A, that is, to the air layer portion 40 in the tubular portion 30. Alternatively, a plurality of them can be formed, and the heat of the opposing wall portion 27 can be efficiently radiated to the air layer portion 40 in the cylindrical portion 30 and can be efficiently cooled by air circulation.

また、熱源Ａがエンジンルーム２の車幅方向の中央部に位置する場合には、カウルカバー装置11の対向壁部27すなわち筒状部30を、車幅方向の中央部から左右不等長に設定することもできる。 Further, when the heat source A is located at the center of the engine room 2 in the vehicle width direction, the opposing wall portion 27 of the cowl cover device 11, that is, the cylindrical portion 30 is made unequal to the left and right from the center of the vehicle width direction. It can also be set.

上記の各実施の形態において、カウルカバー装置11は、車幅方向に分割し、連結構造により組み合わせて構成することもできる。 In each of the above-described embodiments, the cowl cover device 11 can be divided in the vehicle width direction and combined with the connection structure.

また、上記の各実施の形態において、ウインドシールドは、ガラス製のものに限られず、アクリルなどの透明な素材を用いることもできる。 In each of the above embodiments, the windshield is not limited to glass, and a transparent material such as acrylic can also be used.

本発明は、例えば、自動車のエンジンルームに隣接して配置されるカウルカバー装置に適用できる。 The present invention can be applied to, for example, a cowl cover device disposed adjacent to an engine room of an automobile.

２フロントコンパートメントとしてのエンジンルーム
４車室
５ウインドシールドとしてのフロントガラス
６カウル部
11 カウルカバー装置
24 カバー本体部
26 隔壁部
27 対向壁部
30 筒状部
40 空気層部
41 開口部
42 開口部
48 ヒンジ部 2 Engine compartment as front compartment 4 Car compartment 5 Windshield as windshield 6 Cowl
11 cowl cover device
24 Cover body
26 Bulkhead
27 Opposite wall
30 Tube
40 Air layer
41 opening
42 opening
48 Hinge

Claims

A cowl cover device provided in a cowl portion between a front compartment where a heat source of a vehicle is disposed and a windshield of a vehicle compartment,
A cover main body covering the cowl;
A partition wall portion connected to the front side of the cover main body portion, and partitioning between the front compartment and the cowl portion,
An opposing wall portion that is spaced apart along the front side of the partition;
A cowl cover device comprising an air layer portion that is located between the partition wall portion and the opposing wall portion and that is continuous in the vehicle width direction and opens at both ends.

Provided with a cylindrical part having a partition part and an opposing wall part and having an inner side as an air layer part and both ends as openings,
The cowl cover device according to claim 1, wherein the facing wall portion is opposed to the heat source at a position deviating from a center position of a length dimension in a vehicle width direction.

The cylindrical part is
A partition wall projecting integrally from the cover body,
A facing wall in which a portion integrally extended to the front side through a hinge portion from a portion continuous with the cover main body portion is bent from the hinge portion to the partition wall side and a tip portion is fixed to the partition wall side. The cowl cover device according to claim 2, further comprising a portion.