JP2007083916A - Automobile hood seal structure - Google Patents

Automobile hood seal structure Download PDF

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Publication number
JP2007083916A
JP2007083916A JP2005276362A JP2005276362A JP2007083916A JP 2007083916 A JP2007083916 A JP 2007083916A JP 2005276362 A JP2005276362 A JP 2005276362A JP 2005276362 A JP2005276362 A JP 2005276362A JP 2007083916 A JP2007083916 A JP 2007083916A
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Japan
Prior art keywords
peripheral wall
seal
hood
protrusion
end surface
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
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JP2005276362A
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Japanese (ja)
Inventor
Masayuki Taguchi
政行 田口
Takayoshi Hiramatsu
崇嘉 平松
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Toyota Auto Body Co Ltd
Toyota Motor Corp
Toyoda Gosei Co Ltd
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Toyota Auto Body Co Ltd
Toyota Motor Corp
Toyoda Gosei Co Ltd
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Application filed by Toyota Auto Body Co Ltd, Toyota Motor Corp, Toyoda Gosei Co Ltd filed Critical Toyota Auto Body Co Ltd
Priority to JP2005276362A priority Critical patent/JP2007083916A/en
Priority to CNB2006101534143A priority patent/CN100540345C/en
Publication of JP2007083916A publication Critical patent/JP2007083916A/en
Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To prevent interference between a seal portion and a projecting portion of a seal member in the case where the projecting portion is on an upper end surface, in a hood seal structure wherein the seal member attached to a front end portion of an automobile engine hood is press-contacted on a front upper end surface of an engine room. <P>SOLUTION: A protrusion 5 projecting to a rear and diagonally lower side and press-contacting with the front upper end surface 20 immediately in front of the projecting portion 3 is formed at a lower end of the hollow seal portion 42 of the seal member 4. A peripheral wall rear surface portion 44 of the seal portion 42 is formed to have a generally dogleg-shaped cross section by an upper half portion 44a and a lower half portion 44b. A bending portion 45 is made to be at an upper position than the projecting portion 3, and have a thin wall. When the seal portion 42 is pressed on the upper end surface 20, the lower half portion 44b is bent forward in an arch-shape to avoid interference with the projecting portion 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は自動車のエンジンフードの前端部とエンジンルームの前部上端面との間の間隙をシールするフードシール構造に関するものである。   The present invention relates to a hood seal structure for sealing a gap between a front end portion of an engine hood of an automobile and a front upper end surface of an engine room.

図３および図４に示すように、自動車のエンジンフード１の前端部と、これと対向するエンジンルームの前部上端面２０との間には、エンジンフード１を閉じるときの緩衝および自動車走行時の風切音防止等の目的でシール部材４が設けられている。   As shown in FIGS. 3 and 4, between the front end portion of the engine hood 1 of the automobile and the front upper end surface 20 of the engine room facing the buffer, when the engine hood 1 is closed and when the vehicle is running The sealing member 4 is provided for the purpose of preventing wind noise.

図４に示し、また下記特許文献にも記載されているように、シール部材４は、取付基部４１と、その先端から膨出する中空状のシール部４２とからなり、取付基部４１がクリップ４０によりエンジンフード１の前端下面に取付けられている。シール部材４は一般にゴムまたは合成樹脂からなる一体成形体で、取付基部４１は硬質材からなり、シール部４２は軟質材、一般にはスポンジ材で構成されている。   As shown in FIG. 4 and also described in the following patent document, the seal member 4 includes an attachment base 41 and a hollow seal 42 that bulges from the tip of the attachment base 41. Is attached to the lower surface of the front end of the engine hood 1. The seal member 4 is generally an integrally molded body made of rubber or synthetic resin, the mounting base 41 is made of a hard material, and the seal portion 42 is made of a soft material, generally a sponge material.

エンジンルームの前部はラジエータグリル２１とヘッドランプ２２とで形成されており、これらの上端面２０に、エンジンフード１が閉じられると、シール部材４のシール部４２の下端が圧接する。
特開平４−３００７８８号公報 特開平４−３３４６６８号公報 A front portion of the engine room is formed by a radiator grille 21 and a headlamp 22, and when the engine hood 1 is closed, the lower end of the seal portion 42 of the seal member 4 is pressed against these upper end surfaces 20.
Japanese Patent Laid-Open No. 4-3000788 JP-A-4-334668

ところでエンジンルームの前部上端面２０は必ずしも平坦面とは限らず各種の突出部が設けられている場合が多い。図例の突出部３は、ラジエータグリル２１の後部に設置されている図略ラジエータの上を覆うラジエータカバー３０の前端縁を嵌合係止させる突出部で、合成樹脂のラジエータグリル２１と一体に形成されている。   By the way, the front upper end surface 20 of the engine room is not necessarily a flat surface, and various projections are often provided. The protrusion 3 in the figure is a protrusion that engages and locks the front end edge of the radiator cover 30 that covers the upper portion of the not-illustrated radiator installed at the rear of the radiator grille 21 and is integrated with the radiator grille 21 of synthetic resin. Is formed.

このような突出部３が設けられていると、エンジンフード１を閉じるときにシール部材４のシール部４２の後面側の下半部が突出部３に押し付けられてエンジンフード１の閉力が大きくなる。またシール部４２の下半部全体が突出部３によって前方へ押し出されるから、シール部４２の前面側の下端がエンジンフード１の前端部とエンジンルームの前部上端面２０との間の間隙から前方へ膨れ出して自動車前部の見栄えが損なわれる。   When the projecting portion 3 is provided, when the engine hood 1 is closed, the lower half of the rear surface side of the seal portion 42 of the seal member 4 is pressed against the projecting portion 3 so that the closing force of the engine hood 1 is increased. Become. Further, since the entire lower half of the seal portion 42 is pushed forward by the protruding portion 3, the lower end on the front side of the seal portion 42 is from the gap between the front end portion of the engine hood 1 and the front upper end surface 20 of the engine room. It bulges forward and the appearance of the front of the car is impaired.

そこでシール部４２と突出部３の干渉を回避するためにシール部４２の前後幅を狭くすると、シール部４２の上記前部上端面２０に対する必要な圧接力が得られず、シール性が低下するという問題が生じる。   Therefore, if the front-rear width of the seal portion 42 is reduced in order to avoid interference between the seal portion 42 and the protruding portion 3, the necessary pressure contact force with respect to the front upper end surface 20 of the seal portion 42 cannot be obtained, and the sealing performance is deteriorated. The problem arises.

またシール部４２と突出部３の干渉を回避するために突出部３の形成位置を後方へ移すことも考えられるが、そのためにはエンジンルーム前端部の構造を改変しなければならない。   Further, in order to avoid interference between the seal portion 42 and the protruding portion 3, the formation position of the protruding portion 3 may be moved rearward. For this purpose, the structure of the front end portion of the engine room must be modified.

そこで本発明は、エンジンルームの前端部の構造を改変することなくシール部材の構造を改良することでシール部材のシール部とエンジンルームの前部上端面の突出部とが干渉せず、かつ充分なシール性が発揮される自動車のフードシール構造を実現することを課題としてなされたものである。   Therefore, the present invention improves the structure of the seal member without modifying the structure of the front end portion of the engine room, so that the seal portion of the seal member and the protruding portion of the front upper end surface of the engine room do not interfere with each other. An object of the present invention is to realize a hood seal structure of an automobile that exhibits a good sealing performance.

本発明は、硬質材からなる取付基部と、該取付基部の先端から下方へ膨出する軟質材からなる中空状のシール部を備えたシール部材を、上記取付基部によりエンジンフードの前端下面に取付け、エンジンフード閉時にシール部周壁の周壁下端をエンジンルームの前部上端面に、該上端面に形成された突出部の直前位置で圧接せしめる自動車のフードシール構造において、上記周壁の下端に、後方斜め下方へ突出して先端が上記前部上端面に圧接する突起を形成し、上記シール部周壁の周壁後面部を、エンジンフード閉状態で上記突出部の上方位置となる上半部と、該上半部と上記突起とをつなぐ下半部とで屈曲部が後方へ向かって突出する断面ほぼく字形に形成し、かつ上記屈曲部を上記シール部周壁の他の部分よりも薄肉に形成して屈曲変形容易として、上記突起を上記前部上端面に圧接せしめたときに上記下半部が前方へ張り出す湾曲形状に撓み変形するようになした（請求項１）。エンジンフードが閉じられたとき、シール部周壁下端の突起の先端がエンジンルームの前部上端面に当接し、更に押し込まれると、周壁下端は突起の先端を支点として突起とともに前方へ傾き、同時にシール部の周壁後面部の屈曲部は折れ曲がりつつ下方へ押されるから、突出部の前面と対向する周壁後面部の下半部は前方へ弓なりに湾曲し、突出部と干渉しない。   The present invention attaches a sealing member having a mounting base portion made of a hard material and a hollow seal portion made of a soft material bulging downward from the tip of the mounting base portion to the lower surface of the front end of the engine hood by the mounting base portion. In the hood seal structure of an automobile, when the engine hood is closed, the lower end of the peripheral wall of the seal portion is brought into pressure contact with the front upper end surface of the engine room at a position immediately before the projecting portion formed on the upper end surface. A protrusion protruding obliquely downward and having a tip pressed against the upper end surface of the front portion is formed, and the rear surface of the peripheral wall of the seal portion peripheral wall is formed with an upper half portion that is located above the protrusion when the engine hood is closed, The bent portion is formed in a substantially square shape in which the bent portion protrudes rearward by the lower half portion connecting the half portion and the protrusion, and the bent portion is formed thinner than other portions of the peripheral wall of the seal portion. Flexion As easily, the lower half portion of the protrusion when brought pressed against the front upper surface is no such resiliently deformed into a curved shape protruding frontward (claim 1). When the engine hood is closed, the tip of the protrusion at the lower end of the peripheral wall of the seal part comes into contact with the upper end surface of the front part of the engine room, and when pushed further, the lower end of the peripheral wall tilts forward with the protrusion as a fulcrum. Since the bent portion of the rear surface portion of the peripheral wall is pushed downward while being bent, the lower half of the rear surface portion of the peripheral wall facing the front surface of the protruding portion is bent forward and does not interfere with the protruding portion.

本発明は、上記突起を上記シール部周壁とほぼ同じ厚さに形成する（請求項２）。エンジンフードを閉じるとき突起の先端が上記前部上端面に圧接すると、突起は周壁下端と一体に前倒れとなり、かつ屈曲部は内面に溝を形成して折れ曲がり易くしたから、シール部の周壁後面部の下半部は確実に前方へ弓なりに撓み変形する。   In the present invention, the protrusion is formed to have substantially the same thickness as the peripheral wall of the seal portion (claim 2). When closing the engine hood, if the tip of the protrusion comes into pressure contact with the upper end surface of the front part, the protrusion will fold forward together with the lower end of the peripheral wall, and the bent part will form a groove on the inner surface, making it easier to bend. The lower half of the surface portion is surely bent forward and deformed like a bow.

また本発明では、上記周壁後面部の上半部を、エンジンフード前端のシール部押し付け方向に対し、後方斜め下方へ延出する傾斜方向に形成する（請求項３）。かつ本発明は、上記周壁後面部の上端の根元部の外面と上記取付基部の下面との連接部に切欠きを形成して、上記上半部の傾動を容易とする（請求項４）。これによりシール部の周壁後面部の屈曲部はエンジンフード閉時に小さな荷重で確実に折り畳まれる。   In the present invention, the upper half of the rear surface of the peripheral wall is formed in an inclined direction extending obliquely downward and rearward relative to the seal portion pressing direction of the front end of the engine hood. And this invention forms a notch in the connection part of the outer surface of the base part of the upper end of the said surrounding wall rear surface part, and the lower surface of the said attachment base part, and makes tilting of the said upper half part easy (Claim 4). As a result, the bent portion of the rear surface portion of the peripheral wall of the seal portion is reliably folded with a small load when the engine hood is closed.

本発明の実施形態を図１、図２および図３により説明する。図１および図３に示すように、エンジンルームを開閉するエンジンフード１の前部はフード外板１１とフード内板１２とからなり、これらは前端でヘミング加工により結合されている。フード外板１１のフード内板１２との結合端はシーラ１３で被覆してある。一方、エンジンルームの前部は、ラジエータグリル２１とその左右両側のヘッドランプ２２で構成され、これらの上端面２０は車幅方向に帯状に一連に延びている。そしてエンジンフード１閉時、上記前部上端面２０とエンジンフード１の前端とは間隙をおいて上下に対向する。   An embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 3, the front portion of the engine hood 1 that opens and closes the engine room includes a hood outer plate 11 and a hood inner plate 12, which are coupled by hemming at the front end. The joint end of the hood outer plate 11 with the hood inner plate 12 is covered with a sealer 13. On the other hand, the front part of the engine room is constituted by a radiator grille 21 and headlamps 22 on both the left and right sides thereof, and these upper end surfaces 20 extend in a strip shape in the vehicle width direction. When the engine hood 1 is closed, the front upper end surface 20 and the front end of the engine hood 1 face each other with a gap therebetween.

ラジエータグリル２１後方位置には図示しないラジエータが設けてあり、その上方はラジエータカバー３０で覆われている。ラジエータグリル２１は合成樹脂製で、その上端面２０にはラジエータカバー３０の前端縁を嵌合係止する突出部３が一体に形成されている。   A radiator (not shown) is provided at a position behind the radiator grille 21, and an upper portion thereof is covered with a radiator cover 30. The radiator grille 21 is made of synthetic resin, and an upper end surface 20 is integrally formed with a protruding portion 3 that fits and locks the front end edge of the radiator cover 30.

エンジンフード１の前端にはフード内板１２の下面にエンジンフード１前端縁に沿って車幅方向にシール部材４が取付けてある。シール部材４はゴムまたは合成樹脂製で、取付基部４１とシール部４２を備えている。取付基部４１は平板帯状で硬質材、例えばＥＰＤＭソリッドゴムからなる。シール部４２は断面ほぼ長円形の中空状で、取付基部４１の前端からほぼ下方へ膨出している。シール部４２周壁の一般部はスポンジ材、例えばＥＰＤＭスポンジゴムからなり、前後の根元部は、取付基端４１の前端から前後に二股に分岐する硬質材からなる。シール部材４はその取付基部４１が所定の間隔をおいてクリップ４０によりフード内板１２の下面に固定されている。シール部材４は押出成形により一体成形される。   At the front end of the engine hood 1, a seal member 4 is attached to the lower surface of the hood inner plate 12 along the front end edge of the engine hood 1 in the vehicle width direction. The seal member 4 is made of rubber or synthetic resin and includes an attachment base portion 41 and a seal portion 42. The mounting base 41 is a flat strip and is made of a hard material such as EPDM solid rubber. The seal portion 42 is a hollow shape having a substantially oval cross section, and bulges substantially downward from the front end of the mounting base portion 41. The general portion of the peripheral wall of the seal portion 42 is made of a sponge material, for example, EPDM sponge rubber, and the front and rear root portions are made of a hard material that branches into the front and rear from the front end of the mounting base end 41. The sealing base 4 of the seal member 4 is fixed to the lower surface of the hood inner plate 12 with a clip 40 at a predetermined interval. The seal member 4 is integrally formed by extrusion molding.

シール部４２周壁の下端には突起５が形成してある。突起５は根元がシール部４２周壁とほぼ同じ厚さで先細り形状としてあり、後方斜め下方へ突出している。突起５はエンジンフード１閉時に先端が上記突出部３の直前位置でエンジンルームの前部上端面２０に圧接する。   A protrusion 5 is formed at the lower end of the peripheral wall of the seal portion 42. The base of the protrusion 5 has a taper shape with substantially the same thickness as the peripheral wall of the seal portion 42, and protrudes diagonally downward. When the engine hood 1 is closed, the protrusion 5 is in pressure contact with the front upper end surface 20 of the engine room at a position immediately before the protrusion 3.

図１に示すように、前側の根元部から突起５に至るシール部４２の周壁前面部４３は前方へ張り出す緩やかな湾曲形状としてある。後側の根元部から突起５に至る周壁後面部４４は上半部４４ａと下半部４４ｂとで断面ほぼく字形に形成してある。硬質の根元部を含む上記上半部４４ａは、エンジンフード１の閉作動時においてシール部４２がエンジンフード１の前端によりエンジンルームの上記前部上端面２０に押し付けられるほぼ垂直下方への押し付け方向（図示矢印Ｙ方向）に対し、それよりも若干後方斜め下方へ延びる傾斜方向に形成してあり、後方へ突出する緩やかなく字形の屈曲部４５が上記前部上端面２０の突出部３よりも上方位置となるように設定してある。   As shown in FIG. 1, the peripheral wall front surface portion 43 of the seal portion 42 extending from the front base portion to the protrusion 5 has a gently curved shape projecting forward. The peripheral wall rear surface portion 44 extending from the rear base portion to the protrusion 5 is formed in a substantially square shape in cross section by an upper half portion 44a and a lower half portion 44b. The upper half portion 44a including the hard base portion is pressed substantially vertically downward so that the seal portion 42 is pressed against the front upper end surface 20 of the engine room by the front end of the engine hood 1 when the engine hood 1 is closed. (In the direction of the arrow Y in the figure), it is formed in a slanting direction that extends slightly rearward and lower than that, and the gently bent portion 45 that protrudes rearward is more than the protrusion 3 of the front upper end surface 20. It is set to be in the upper position.

屈曲部４５は内面側に溝４５１を形成してシール部４２周壁の他の部分よりも薄肉とし屈曲変形容易としてある。また、周壁後面部４４の上記硬質の根元部の外面と取付基部４１の前端下面との連接部には切欠き４６が形成してあって根元部に上からの荷重が作用したときに根元部の傾動を容易にしている。   The bent portion 45 is formed with a groove 451 on the inner surface side so that it is thinner than the other portions of the peripheral wall of the seal portion 42 and is easily bent and deformed. Further, a notch 46 is formed in the connecting portion between the outer surface of the hard base portion of the peripheral wall rear surface portion 44 and the front end lower surface of the mounting base portion 41, and the base portion is applied when a load from above acts on the base portion. It is easy to tilt.

シール部４２の周壁後面部４４の上記屈曲部４５と、それよりも前側下方にある上記突起５とをつなぐ下半部４４ｂはエンジンフード１閉時に上記突出部３の前面と対向する部分であり、下端は突起５と前方へ向けて突出するほぼく字形の形状で連なっている。   A lower half portion 44b that connects the bent portion 45 of the peripheral wall rear surface portion 44 of the seal portion 42 and the protrusion 5 below the front side thereof is a portion facing the front surface of the protruding portion 3 when the engine hood 1 is closed. The lower end is connected to the protrusion 5 in a substantially square shape protruding forward.

エンジンフード１閉操作時、先ずシール部４２の下端の突起５が突出部３の前方位置で上記前部上端面２０に当接し、図２に示すように、シール部４２が上から押し込まれると、突起５およびその周辺部は突起５の先端を支点として前方へ倒れる。一方、シール部４２の周壁後面部４４の上半部４４ａは、エンジンフード１からの荷重で押し込まれ、薄肉とした屈曲部４５が更に折れ曲がるとともに下方に移動し、周壁後面部４４の下半部４４ｂは、シール部４２周壁下端の前倒れと相まって、前方へ張り出すように弓なりに撓み、周壁後面部４４は全体がＳ字形の形状となる。従って周壁後面部４４は突出部３と干渉しない。この場合、周壁後面部４４上端の根元部には切欠き４６が形成してあるから、上方からの荷重に対して倒れ方向に傾動しやすくなり、周壁後面部４４のＳ字形状への変形をより安定化する。   When the engine hood 1 is closed, first, the protrusion 5 at the lower end of the seal portion 42 comes into contact with the front upper end surface 20 at a position in front of the protruding portion 3, and the seal portion 42 is pushed in from above as shown in FIG. The protrusion 5 and its peripheral part fall forward with the tip of the protrusion 5 as a fulcrum. On the other hand, the upper half portion 44a of the peripheral wall rear surface portion 44 of the seal portion 42 is pushed in by a load from the engine hood 1, and the bent portion 45 having a thin wall is further bent and moved downward to move the lower half portion of the peripheral wall rear surface portion 44. 44b, coupled with the forward tilting of the lower end of the peripheral wall of the seal portion 42, bends like a bow so as to project forward, and the entire peripheral wall rear surface portion 44 has an S-shape. Therefore, the peripheral wall rear surface portion 44 does not interfere with the protruding portion 3. In this case, since a notch 46 is formed at the base of the upper end of the peripheral wall rear surface portion 44, the peripheral wall rear surface portion 44 can be easily tilted in a tilting direction with respect to a load from above, and the peripheral wall rear surface portion 44 is deformed into an S shape. Stabilize more.

しかしてエンジンフード１閉時にシール部４２がエンジンルームの前部上端面２０に押し付けられると、前部上端面２０の突出部３と対向するシール部４２の周壁後面部４４が前方へ弓なりに撓むから周壁後面部４４は突出部３と干渉せず、シール部４２の押し付け力は効率よく前部上端面２０に作用して良好なシール性が発揮される。またシール部４２は突出部３と干渉しないからエンジンフード１の閉力も増大しない。また、シール部４２が前部上端面２０に押し付けられたときに突起５を含む下端部が前方へ倒れることによりシール部４２の周壁前面部４３の下部全体が若干前方へ移動するが、エンジンフード１の前端と前部上端面２０との間の隙間から外へ膨れ出すことはない。   Thus, when the seal portion 42 is pressed against the front upper end surface 20 of the engine room when the engine hood 1 is closed, the peripheral wall rear surface portion 44 of the seal portion 42 facing the protruding portion 3 of the front upper end surface 20 is bent forward in a bow shape. Therefore, the peripheral wall rear surface portion 44 does not interfere with the projecting portion 3, and the pressing force of the seal portion 42 efficiently acts on the front upper end surface 20 to exhibit good sealing performance. Further, since the seal portion 42 does not interfere with the protruding portion 3, the closing force of the engine hood 1 does not increase. Further, when the seal portion 42 is pressed against the front upper end surface 20, the lower end including the protrusion 5 falls forward, so that the entire lower portion of the peripheral wall front portion 43 of the seal portion 42 moves slightly forward. It does not bulge out from the gap between the front end of the front end 1 and the front upper end surface 20.

本発明のフードシール構造の、図３のＡ−Ａ線に沿う位置での断面を示す図である。It is a figure which shows the cross section in the position which follows the AA line of FIG. 3 of the hood seal structure of this invention. 本発明のフードシール構造の、図３のＡ−Ａ線に沿う位置でのエンジンフード閉時の断面を示す図である。It is a figure which shows the cross section at the time of the engine hood closing in the position which follows the AA line of FIG. 3 of the hood seal structure of this invention. 本発明のフードシール構造が適用される自動車の前部斜視図である。1 is a front perspective view of an automobile to which a hood seal structure of the present invention is applied. 従来のフードシール構造の、図３のＡ−Ａ線に沿う位置でのエンジンフード閉時の断面を示す図である。It is a figure which shows the cross section at the time of the engine hood closing in the position which follows the AA line of FIG. 3 of the conventional hood seal structure.

符号の説明Explanation of symbols

１ エンジンフード
２０ 前部上端面
２１ ラジエータグリル
２２ ヘッドランプ
３ 突出部
４ シール部材
４１ 取付基部
４２ シール部
４３ 周壁前面部
４４ 周壁後面部
４４ａ 上半部
４４ｂ 下半部
４５ 屈曲部
４５１ 溝
４６ 切欠き
５ 突起
DESCRIPTION OF SYMBOLS 1 Engine hood 20 Front part upper end surface 21 Radiator grille 22 Headlamp 3 Protrusion part 4 Seal member 41 Mounting base 42 Seal part 43 Perimeter wall front part 44 Peripheral wall rear surface part 44a Upper half part 44b Lower half part 45 Bending part 451 Groove 46 Notch 5 Protrusions

Claims (4)

硬質材からなる取付基部と、該取付基部の先端から下方へ膨出する軟質材からなる中空状のシール部を備えたシール部材を、上記取付基部によりエンジンフードの前端下面に取付け、エンジンフード閉時にシール部周壁の周壁下端をエンジンルームの前部上端面に、該上端面に形成された突出部の直前位置で圧接せしめる自動車のフードシール構造において、
上記周壁の下端に、後方斜め下方へ突出して先端が上記前部上端面に圧接する突起を形成し、上記シール部周壁の周壁後面部を、エンジンフード閉状態で上記突出部の上方位置となる上半部と、該上半部と上記突起とをつなぐ下半部とで屈曲部が後方へ向かって突出する断面ほぼく字形に形成し、かつ上記屈曲部を上記シール部周壁の他の部分よりも薄肉に形成して屈曲変形容易として、上記突起を上記前部上端面に圧接せしめたときに上記下半部が前方へ張り出す湾曲形状に撓み変形するようになしたことを特徴とする自動車のフードシール構造。 A sealing member having a mounting base portion made of a hard material and a hollow seal portion made of a soft material bulging downward from the tip of the mounting base portion is attached to the lower surface of the front end of the engine hood by the mounting base portion, and the engine hood is closed. In the automobile hood seal structure in which the lower end of the peripheral wall of the seal portion peripheral wall is sometimes brought into pressure contact with the front upper end surface of the engine room at a position immediately before the protrusion formed on the upper end surface.
At the lower end of the peripheral wall, a protrusion that protrudes obliquely downward rearward and whose tip is pressed against the front upper end surface is formed, and the rear surface of the peripheral wall of the seal portion peripheral wall is positioned above the protrusion when the engine hood is closed. The upper half and the lower half connecting the upper half and the projection are formed in a substantially square cross section where the bent portion protrudes rearward, and the bent portion is the other part of the peripheral wall of the seal portion. The lower half is bent and deformed into a curved shape projecting forward when the projection is pressed against the upper end surface of the front part so as to be bent and easily deformed. Automobile hood seal structure. 上記突起を上記シール部周壁とほぼ同じ厚さに形成した請求項１に記載の自動車のフードシール構造。   The automobile hood seal structure according to claim 1, wherein the protrusion is formed to have substantially the same thickness as the peripheral wall of the seal portion. 上記周壁後面部の上半部を、エンジンフード前端のシール部押し付け方向に対し、後方斜め下方へ延出する傾斜方向に形成した請求項１および２のいずれかに記載の自動車のフードシール構造。   The hood seal structure for an automobile according to any one of claims 1 and 2, wherein the upper half portion of the rear surface portion of the peripheral wall is formed in an inclined direction extending obliquely rearward and downward with respect to the seal portion pressing direction of the front end of the engine hood. 上記周壁後面部の上端の根元部の外面と上記取付基部の下面との連接部に切欠きを形成して、上記上半部の傾動を容易とした請求項３に記載の自動車のフードシール構造。
The hood seal structure for an automobile according to claim 3, wherein a notch is formed in a connecting portion between an outer surface of a base portion at an upper end of the rear surface portion of the peripheral wall and a lower surface of the mounting base portion to facilitate tilting of the upper half portion. .
JP2005276362A 2005-09-22 2005-09-22 Automobile hood seal structure Withdrawn JP2007083916A (en)

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JP2005276362A JP2007083916A (en) 2005-09-22 2005-09-22 Automobile hood seal structure
CNB2006101534143A CN100540345C (en) 2005-09-22 2006-09-14 The engine cover sealing structure of self-propelled vehicle

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CN103847655A (en) * 2012-11-28 2014-06-11 重庆长安汽车股份有限公司 Passenger car front cover sealing structure

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JP6801633B2 (en) * 2017-11-10 2020-12-16 トヨタ車体株式会社 Vehicle sealing material mounting structure and sealing material

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CN103847655A (en) * 2012-11-28 2014-06-11 重庆长安汽车股份有限公司 Passenger car front cover sealing structure

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