JP3938562B2 - Front body structure of automobile - Google Patents

Front body structure of automobile Download PDF

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Publication number
JP3938562B2
JP3938562B2 JP2003337518A JP2003337518A JP3938562B2 JP 3938562 B2 JP3938562 B2 JP 3938562B2 JP 2003337518 A JP2003337518 A JP 2003337518A JP 2003337518 A JP2003337518 A JP 2003337518A JP 3938562 B2 JP3938562 B2 JP 3938562B2
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Japan
Prior art keywords
support bracket
wheel house
damper
damper base
side piece
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Expired - Fee Related
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JP2003337518A
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JP2005104204A (en
Inventor
健 安井
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2003337518A priority Critical patent/JP3938562B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/02—Attaching arms to sprung part of vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/14—Independent suspensions with lateral arms
    • B60G2200/144—Independent suspensions with lateral arms with two lateral arms forming a parallelogram
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/17—Independent suspensions with a strut contributing to the suspension geometry by being articulated onto the wheel support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/43—Fittings, brackets or knuckles
    • B60G2204/4302—Fittings, brackets or knuckles for fixing suspension arm on the vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/60—Subframe construction
    • B60G2206/601—Hanger bracket

Description

本発明は自動車の前部車体構造に係り、特に、前輪用のホイールハウスでフロントサスペンションを支えるように構成した自動車の前部車体構造に関する。   The present invention relates to a front body structure of an automobile, and more particularly to a front body structure of an automobile configured to support a front suspension with a wheel house for a front wheel.

自動車のフロントサスペンションのなかには、前輪用ホイールハウスの側壁にサスペンションアームを上下方向に揺動自在に取り付け、このサスペンションアームの先端部にナックルを取り付け、このナックルにハブを取り付け、このハブに前輪を取り付けたものがある（例えば、特許文献１参照。）。
実開平５−１０１７０号公報（図１） In the front suspension of an automobile, a suspension arm is attached to the side wall of the wheel house for front wheels so that it can swing up and down, a knuckle is attached to the tip of this suspension arm, a hub is attached to this knuckle, and a front wheel is attached to this hub (For example, refer to Patent Document 1).
Japanese Utility Model Publication No. 5-10170 (FIG. 1)

特許文献１を以下の図面に基づいて説明する。
図８は従来の技術の基本構成を説明する図である。
フロントサスペンション１５０は、前輪用ホイールハウス１５１の側壁１５２をサイドフレーム１５３で補強し、この補強した部位にサスペンションアーム１５４を上下方向に揺動自在に取り付け、このサスペンションアーム１５４の先端部１５５にナックル１５６を取り付け、このナックル１５６にハブ１５７を取り付け、このハブ１５７に前輪１５８を取り付け、前輪用ホイールハウス１５１の天井部１５９にダンパー１６１を取り付け、ダンパー１６１の下端部でナックル１５６を支えるものである。 Patent document 1 is demonstrated based on the following drawings.
FIG. 8 is a diagram for explaining the basic configuration of the conventional technique.
In the front suspension 150, the side wall 152 of the front wheel house 151 is reinforced by a side frame 153, and a suspension arm 154 is attached to the reinforced portion so as to be swingable in the vertical direction. The hub 157 is attached to the knuckle 156, the front wheel 158 is attached to the hub 157, the damper 161 is attached to the ceiling 159 of the wheel house 151 for the front wheels, and the knuckle 156 is supported at the lower end of the damper 161.

ところで、フロントサスペンション１５４のなかには、サスペンションアーム１６５（以下、アッパアームと称す）を想像線で示すように、前輪用ホイールハウス１５１の天井部１５９近傍に取り付けたものがある。
すなわち、前輪用ホイールハウス１５１の側壁１５２のうち、天井部１５９近傍の部位に支持ブラケット１６６を取り付け、支持ブラケット１６６にアッパアーム１６５を上下方向に揺動自在に取り付け、このアッパアーム１６５の先端部１６７にナックル１６８を取り付ける。 Incidentally, among the front suspensions 154, there is one in which a suspension arm 165 (hereinafter referred to as an upper arm) is attached in the vicinity of the ceiling portion 159 of the front wheel wheel house 151 as indicated by an imaginary line.
That is, the support bracket 166 is attached to a portion of the side wall 152 of the front wheel house 151 near the ceiling portion 159, the upper arm 165 is attached to the support bracket 166 so as to be swingable in the vertical direction, and the tip 167 of the upper arm 165 is attached. Install the knuckle 168.

前輪用ホイールハウス１５１の側壁１５２のうち、天井部１５９近傍の部位に支持ブラケット１６６を取り付けると、支持ブラケット１６６の取付位置がサイドフレーム１５３の上方に位置する。
サイドフレーム１５３の上方の部位で、支持ブラケット１６６を強固に支えるためには、サイドフレームに代わる補強部材を設けることが考えられる。
しかし、補強部材を新たに設けることは構成が複雑になり好ましくない。 When the support bracket 166 is attached to a part of the side wall 152 of the front wheel house 151 near the ceiling 159, the attachment position of the support bracket 166 is located above the side frame 153.
In order to firmly support the support bracket 166 at a position above the side frame 153, it is conceivable to provide a reinforcing member in place of the side frame.
However, it is not preferable to newly provide a reinforcing member because the configuration becomes complicated.

本発明は、簡単な構成で前輪用ホイールハウスにアッパアームを強固に取り付けることができる自動車の前部車体構造を提供することを課題とする。   An object of the present invention is to provide a front body structure of an automobile in which an upper arm can be firmly attached to a wheel house for a front wheel with a simple configuration.

請求項１に係る発明は、前輪の上方に前輪用のホイールハウスを設け、このホイールハウスの天井部をダンパーベース部とし、このダンパーベース部にダンパーを下向きに設け、このダンパーの前後側にそれぞれ前後の支持ブラケットを設け、前後の支持ブラケットでフロントサスペンション用のアッパアームを支える自動車の前部車体構造において、前記前後の支持ブラケットを、上下に延びる底部と、この底部の両側から突出した一対の側片とで断面略コ字形に形成し、前記一対の側片のうち、一方の側片の上部に前記ダンパーベース部に対向する接合部を一体形成し、この接合部を前記ダンパーベース部に接合するとともに、他方の側片および前記底部を前記ホイールハウスに接合したことを特徴とする。 The invention according to claim 1 is provided with a wheel house for the front wheel above the front wheel, the ceiling part of the wheel house is a damper base part, the damper is provided downward on the damper base part, and the front and rear sides of the damper are respectively In a front vehicle body structure of an automobile in which front and rear support brackets are provided and an upper arm for a front suspension is supported by the front and rear support brackets, the front and rear support brackets have a bottom portion extending vertically and a pair of sides protruding from both sides of the bottom portion. The joint is formed in a substantially U-shaped cross section with a piece, and a joint portion facing the damper base portion is integrally formed on the upper portion of one of the pair of side pieces, and the joint portion is joined to the damper base portion. In addition, the other side piece and the bottom are joined to the wheel house .

ここで、フロントサスペンション用のアッパアームを支持ブラケットで支えるためには、支持ブラケットを断面略コ字形に形成し、コ字形を構成する側片に支持ブラケットを取り付ける。
しかし、側片は一端（すなわち、コ字形の開口部側の端部）が自由端になっているので、側片の剛性を高める必要がある。 Here, in order to support the upper arm for the front suspension with the support bracket, the support bracket is formed in a substantially U-shaped cross section, and the support bracket is attached to a side piece constituting the U-shape.
However, one end of the side piece (that is, the end portion on the side of the U-shaped opening) is a free end, and thus it is necessary to increase the rigidity of the side piece.

そこで、請求項１において、支持ブラケットを断面略コ字形に形成し、略コ字形を構成する一方の側片の上部に接合部を一体形成し、この接合部をダンパーベース部に接合することにした。
一方の側片を接合部を介してダンパーベース部に接合することで、一方の側片をホイールハウスに強固に取り付けることができる。
このように、一方の側片を接合部を介してダンパーベース部に接合することで、補強部材を新たに加えることなく、一方の側片を上方に延ばすだけの簡単な構成で、支持ブラケットをホイールハウスに強固に取り付けることができる。
さらに、一対の側片のうち、他方の側片をホイールハウスに接合することで、他方の側片の剛性を確保することができる。
また、請求項２に係る発明は、前記前後の支持ブラケットに取付ボルトを介して前記アッパアームを回転自在に支える構成とし、前記取付ボルトの先端部が、前記ホイールハウスを貫通して反対側の空間となるエンジンルーム側に突出し、突出した先端部にナットがねじ結合されたことを特徴とする。 Therefore, in claim 1 , the support bracket is formed in a substantially U-shaped cross section , a joint is integrally formed on the upper part of one side piece constituting the substantially U-shaped, and the joint is joined to the damper base. did.
By joining the one side piece to the damper base via a joint, it is firmly attached to one of the side pieces to the wheel house.
In this way, by joining the one side piece to the damper base via a joint, without newly adding a reinforcing member, a simple configuration in which only extend one of the side pieces upwards, the support bracket It can be firmly attached to the wheel house.
Furthermore, the rigidity of the other side piece can be ensured by joining the other side piece of the pair of side pieces to the wheel house.
Further, the invention according to claim 2 is configured such that the upper arm is rotatably supported by the front and rear support brackets via mounting bolts, and a tip end portion of the mounting bolt penetrates the wheel house and is on the opposite space. It protrudes to the engine room side, and a nut is screwed to the protruding tip.

請求項１に係る発明では、一方の側片の上部に接合部を一体形成するだけの簡単な構成でホイールハウスに支持ブラケットを強固に取り付けることが可能になり、簡単な構成で前輪用ホイールハウスにアッパアームを強固に取り付けることができるとともに、コストアップを抑えることができるという利点がある。 In the invention according to claim 1, it becomes possible to firmly attach the support bracket to the wheel house with a simple configuration in which a joint is integrally formed on the upper portion of one side piece, and the wheel house for a front wheel can be configured with a simple configuration. There is an advantage that the upper arm can be firmly attached and cost increase can be suppressed .

請求項２に係る発明では、取付ボルトの先端部が、ホイールハウスを貫通して反対側の空間となるエンジンルーム側に突出し、突出した先端部にナットがねじ結合されることで、前後の支持ブラケットに取付ボルトを介してアッパアームを回転自在に支えることができるという利点がある。 In the invention which concerns on Claim 2 , the front-end | tip part of a mounting bolt protrudes in the engine compartment side which penetrates a wheel house and becomes a space on the other side, and a nut is screw-coupled to the front-end | tip part which protruded, Therefore there is an advantage that the upper arm via a mounting bolt to the bracket can be obtained freely supported rotation.

本発明を実施するための最良の形態を添付図に基づいて以下に説明する。「前」、「後」、「左」、「右」は運転者から見た方向に従う。また、図面は符号の向きに見るものとする。
図１は本発明に係る自動車の前部車体構造を備えた自動車の斜視図である。
自動車１０は、左右のフロントフェンダ１１，１２の下方に前輪用のホイールハウス１３（左側のみを示す）を設け、左右のホイールハウス１３の下方にそれぞれ前輪１４，１５を配置し、左右のフロントフェンダ１１，１２の間にボンネット１７を配置し、これらの部材、すなわち左右のフロントフェンダ１１，１２およびボンネット１７のそれぞれ前端部にフロントバンパー１８を配置し、ボンネット１７の後方にフロントウインドガラス１９を配置し、フロントウインドガラス１９の左右側に左右のフロントピラー２１，２２を備える。 The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. “Front”, “Rear”, “Left” and “Right” follow the direction seen from the driver. The drawings are to be viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of an automobile provided with a front body structure of the automobile according to the present invention.
The automobile 10 is provided with a front wheel wheel house 13 (only the left side is shown) below the left and right front fenders 11 and 12, and the front wheels 14 and 15 are arranged below the left and right wheel houses 13, respectively. A hood 17 is disposed between the front and rear hoods 11 and 12, a front bumper 18 is disposed at the front end of each of the members, that is, the left and right front fenders 11 and 12 and the hood 17, and a front window glass 19 is disposed behind the hood 17. The left and right front pillars 21 and 22 are provided on the left and right sides of the front window glass 19.

なお、左側フロントフェンダ１１およびホイールハウス１３は、本発明に係る自動車の前部車体構造３０を構成する部材である。
以下、自動車の前部車体構造３０について詳しく説明する。 The left front fender 11 and the wheel house 13 are members constituting the front vehicle body structure 30 of the automobile according to the present invention.
Hereinafter, the front body structure 30 of the automobile will be described in detail.

図２は図１の２矢視図である。
自動車の前部車体構造３０は、左側フロントサイドフレーム３１を前後方向に延ばし、この左側フロントサイドフレーム３１の外側に左側アッパメンバー３２を設け、左側アッパメンバー３２の外側に左側フロントフェンダ１１を設け、左側アッパメンバー３２と左側フロントサイドフレーム３１との間の空間に左前輪用のホイールハウス１３を設けることで車体内側にエンジンなどを収納するエンジンルームを形成するものである。 FIG. 2 is a view taken in the direction of arrow 2 in FIG.
The front body structure 30 of the automobile extends a left front side frame 31 in the front-rear direction, a left upper member 32 is provided outside the left front side frame 31, and a left front fender 11 is provided outside the left upper member 32. By providing the wheel house 13 for the left front wheel in the space between the left upper member 32 and the left front side frame 31, an engine room for accommodating an engine or the like is formed inside the vehicle body.

さらに、自動車の前部車体構造３０は、ホイールハウス１３の天井部をダンパーベース部３４とし、このダンパーベース部３４にダンパー３５の上端部３６を取り付けるとともに、ダンパー３５を下方に延ばし、ダンパー３５の前後側にそれぞれ前後の支持ブラケット４１，４２を配置し、これら前後の支持ブラケット４１，４２をホイールハウス１３の側壁４４に設けたものである。   Furthermore, the front body structure 30 of the automobile has a damper base portion 34 as a ceiling portion of the wheel house 13, and an upper end portion 36 of a damper 35 is attached to the damper base portion 34, and the damper 35 is extended downward. Front and rear support brackets 41 and 42 are arranged on the front and rear sides, respectively, and the front and rear support brackets 41 and 42 are provided on the side wall 44 of the wheel house 13.

加えて、自動車の前部車体構造３０は、前後の支持ブラケット４１，４２に取付ボルト４６，４６（図３、図４参照参照）を介してアッパアーム４７を上下方向に揺動自在に取り付け、このアッパアーム４７の中央部にナックル４８の上端部４９を取り付け、ナックル４８にロアアーム５１を連結し、ロアアーム５１にダンパーフォーク５２（図３も参照）を介してダンパー３５の下端部３７（図３も参照）を連結し、ロアアーム５１にラジアルロッド５３およびスタビライザスプリング５４を連結したものである。
ナックル４８にハブ（図示せず）を介して前輪１４を取り付ける。 In addition, the front vehicle body structure 30 of the automobile has an upper arm 47 attached to the front and rear support brackets 41 and 42 via mounting bolts 46 and 46 (see FIGS. 3 and 4) so as to be swingable in the vertical direction. An upper end portion 49 of a knuckle 48 is attached to the center portion of the upper arm 47, a lower arm 51 is connected to the knuckle 48, and a lower end portion 37 (see also FIG. 3) of the damper 35 via a damper fork 52 (see also FIG. 3). ), And a radial rod 53 and a stabilizer spring 54 are connected to the lower arm 51.
The front wheel 14 is attached to the knuckle 48 via a hub (not shown).

なお、自動車の前部車体構造３０を、車体左側を構成するものとして説明するが、車体右側を構成する自動車の前部車体構造も同様の構成であり、左右側の自動車の前部車体構造は同じ作用効果を得る。   Although the front body structure 30 of the automobile will be described as constituting the left side of the car body, the front body structure of the car constituting the right side of the car body has the same configuration, and the front body structure of the left and right car is Get the same effect.

図３は本発明に係る自動車の前部車体構造を示す分解斜視図である。
自動車の前部車体構造３０は、前輪１４（図２参照）の上方に前輪用のホイールハウス１３を設け、このホイールハウス１３の天井部をダンパーベース部３４とし、このダンパーベース部３４にダンパー３５を下向きに設け、このダンパー３５の前後側に、フロントサスペンション用のアッパアーム４７を支える前後の支持ブラケット４１，４２をそれぞれ設けたものである。 FIG. 3 is an exploded perspective view showing the front body structure of the automobile according to the present invention.
In the front body structure 30 of the automobile, a wheel house 13 for a front wheel is provided above a front wheel 14 (see FIG. 2), and a ceiling part of the wheel house 13 is used as a damper base part 34, and a damper 35 is provided on the damper base part 34. The front and rear support brackets 41 and 42 for supporting the front suspension upper arm 47 are respectively provided on the front and rear sides of the damper 35.

ホイールハウス１３は、車体前後方向に延びる側壁７６を備える。側壁７６は、ダンパー３５の前方に、車体幅方向と平行で、かつダンパー３５に臨む前壁７７を備えるとともに、ダンパー３５の後方に、車体幅方向と平行で、かつダンパー３５に臨む後壁７８を備える。   The wheel house 13 includes a side wall 76 that extends in the longitudinal direction of the vehicle body. The side wall 76 includes a front wall 77 parallel to the vehicle width direction and facing the damper 35 in front of the damper 35, and a rear wall 78 parallel to the vehicle width direction and facing the damper 35 behind the damper 35. Is provided.

前支持ブラケット４１は、上下に延びる底部５６及びこの底部５６の両側から突出した一対の側片５７，５８で断面略コ字形に形成したものである。
底部５６を側壁７６に接合するとともに、一対の側片５７，５８のうち、前側の側片５７を前壁７７に接合する。
前支持ブラケット４１を断面略コ字形にすることで、収納凹部６１を形成する。 The front support bracket 41 is formed in a substantially U-shaped cross section with a bottom portion 56 extending vertically and a pair of side pieces 57 and 58 protruding from both sides of the bottom portion 56.
While joining the bottom part 56 to the side wall 76, the front side piece 57 of the pair of side pieces 57 and 58 is joined to the front wall 77.
The housing recess 61 is formed by making the front support bracket 41 substantially U-shaped in cross section.

後支持ブラケット４２は、前支持ブラケット４１と同様に、上下に延びる底部６３及びこの底部６３の両側から突出した一対の側片６４，６５で断面略コ字形に形成したものである。
底部６３を側壁７６に接合するとともに、一対の側片６４，６５のうち、後側の側片６５を後壁７８に接合する。
後支持ブラケット４２を断面略コ字形にすることで、収納凹部６７を形成する。
なお、部材同士の接合は、一例としてスポット溶接が適用されるが、これに限定するものではない。 Similar to the front support bracket 41, the rear support bracket 42 is formed in a substantially U-shaped cross section with a bottom 63 extending vertically and a pair of side pieces 64, 65 protruding from both sides of the bottom 63.
The bottom 63 is joined to the side wall 76, and the rear side piece 65 of the pair of side pieces 64 and 65 is joined to the rear wall 78.
The storage recess 67 is formed by making the rear support bracket 42 substantially U-shaped in cross section.
In addition, as for the joining of members, spot welding is applied as an example, but it is not limited to this.

図４は本発明に係る自動車の前部車体構造を構成する前後の支持ブラケットを示す断面図である。
ダンパー３５の前後側にそれぞれ前後の支持ブラケット４１，４２を配置し、前支持ブラケット４１の底部５６を、ホイールハウス１３の側壁７６に接合するとともに、前支持ブラケット４１の前側の側片５７を、側壁７６の前壁７７に接合する。
後支持ブラケット４２の底部６３をホイールハウス１３の側壁７６に接合するとともに、後支持ブラケット４２の後側の側片６５を、後壁７８に接合する。 FIG. 4 is a cross-sectional view showing the support brackets before and after constituting the front body structure of the automobile according to the present invention.
The front and rear support brackets 41 and 42 are disposed on the front and rear sides of the damper 35, the bottom portion 56 of the front support bracket 41 is joined to the side wall 76 of the wheel house 13, and the front side piece 57 of the front support bracket 41 is Joined to the front wall 77 of the side wall 76.
The bottom portion 63 of the rear support bracket 42 is joined to the side wall 76 of the wheel house 13, and the rear side piece 65 of the rear support bracket 42 is joined to the rear wall 78.

前支持ブラケット４１の前後の側片５７，５８には、それぞれ取付孔５９，５９を備え、側壁７６の前壁７７に取付孔７７ａを備える。
また、後支持ブラケット４２の一対の側片６４，６５には、それぞれ取付孔６６，６６を備え、側壁７６の後壁７８に取付孔７８ａを備える。 The front and rear side pieces 57 and 58 of the front support bracket 41 are provided with attachment holes 59 and 59, respectively, and the front wall 77 of the side wall 76 is provided with an attachment hole 77 a.
The pair of side pieces 64 and 65 of the rear support bracket 42 are provided with attachment holes 66 and 66, respectively, and the rear wall 78 of the side wall 76 is provided with an attachment hole 78 a.

アッパアーム４７を略湾曲状に形成し、両端部（前後部）のボス７１，７２のうち、前側ボス７１をスペーサ７３，７３を介して前支持ブラケット４１の収納凹部６１に配置する。
前側ボス７１の貫通孔７１ａを、前支持ブラケット４１の取付孔５９，５９および取付孔７７ａに合わせる。
取付ボルト４６を、取付孔５９，５９、貫通孔７１ａおよび取付孔７７ａに差し込み、取付孔７７ａから突出した取付ボルト４６にナット７４をねじ結合する。
これにより、前支持ブラケット４１に前側ボス７１を回転自在に取り付ける。 The upper arm 47 is formed in a substantially curved shape, and the front boss 71 of the bosses 71 and 72 at both ends (front and rear portions) is disposed in the storage recess 61 of the front support bracket 41 via the spacers 73 and 73.
The through hole 71a of the front boss 71 is aligned with the mounting holes 59, 59 and the mounting hole 77a of the front support bracket 41.
The mounting bolt 46 is inserted into the mounting holes 59, 59, the through hole 71a and the mounting hole 77a, and the nut 74 is screwed to the mounting bolt 46 protruding from the mounting hole 77a.
Thereby, the front boss 71 is rotatably attached to the front support bracket 41.

さらに、両端部（前後部）のボス７１，７２のうち、後側ボス７２をスペーサ７３，７３を介して後支持ブラケット４２の収納凹部６７に配置する。
後側ボス７２の貫通孔７２ａを、後支持ブラケット４２の取付孔６６，６６および取付孔７８ａに合わせる。
取付ボルト４６を、取付孔６６，６６、貫通孔７２ａおよび取付孔７８ａに差し込み、取付孔７８ａから突出した取付ボルト４６にナット７４をねじ結合する。
これにより、後支持ブラケット４２に後側ボス７２を回転自在に取り付ける。 Further, of the bosses 71 and 72 at both ends (front and rear portions), the rear boss 72 is disposed in the storage recess 67 of the rear support bracket 42 via the spacers 73 and 73.
The through hole 72a of the rear boss 72 is aligned with the mounting holes 66, 66 and the mounting hole 78a of the rear support bracket 42.
The mounting bolt 46 is inserted into the mounting holes 66 and 66, the through hole 72a and the mounting hole 78a, and the nut 74 is screwed to the mounting bolt 46 protruding from the mounting hole 78a.
As a result, the rear boss 72 is rotatably attached to the rear support bracket 42.

このように、前後の支持ブラケット４１，４２に前後のボス７１，７２をそれぞれ回転自在に取り付けることで、前後の支持ブラケット４１，４２にアッパアーム４７を上下方向に揺動自在に取り付ける。
このアッパアーム４７の中央部４７ａにナックル４８（図３参照）の上端部４９を取り付ける。 As described above, the front and rear bosses 71 and 72 are rotatably attached to the front and rear support brackets 41 and 42, respectively, so that the upper arm 47 is attached to the front and rear support brackets 41 and 42 so as to be swingable in the vertical direction.
An upper end portion 49 of a knuckle 48 (see FIG. 3) is attached to the central portion 47a of the upper arm 47.

図５は本発明に係る自動車の前部車体構造を構成する前後の支持ブラケットを示す側面図である。
前支持ブラケット４１は、上下に延びる底部５６及びこの底部５６の両側から突出した一対の側片５７，５８で断面略コ字形に形成し、底部５６をホイールハウス１３の側壁７６に接合するとともに、一対の側片５７，５８のうち前側の側片５７をホイールハウス１３の前側壁７７に接合し、一対の側片５７，５８に、それぞれ取付孔５９，５９を備える。 FIG. 5 is a side view showing the front and rear support brackets constituting the front body structure of the automobile according to the present invention.
The front support bracket 41 is formed in a substantially U-shaped cross section with a bottom portion 56 extending vertically and a pair of side pieces 57 and 58 protruding from both sides of the bottom portion 56, and the bottom portion 56 is joined to the side wall 76 of the wheel house 13. The front side piece 57 of the pair of side pieces 57, 58 is joined to the front side wall 77 of the wheel house 13, and the pair of side pieces 57, 58 are provided with mounting holes 59, 59, respectively.

前支持ブラケット４１の上端部８１をダンパーベース部３４まで延ばすとともに、この上端部８１をダンパーベース部３４に、一例としてスポット溶接で接合する。
具体的には、一対の側片５７，５８のうち後側の側片５８の上部５８ａおよび底部５６の上部５６ａをダンパーベース部３４まで上方に延ばし、延ばした部位にダンパーベース部３４に対向する接合部８２を備え、接合部８２をダンパーベース部３４に、一例としてスポット溶接で接合する。
後側の側片５８の上部５８ａ、底部５６の上部５６ａおよび接合部８２で、前支持ブラケット４１の上端部８１を構成する。 The upper end 81 of the front support bracket 41 is extended to the damper base 34, and the upper end 81 is joined to the damper base 34 by spot welding as an example.
Specifically, the upper portion 58a of the rear side piece 58 and the upper portion 56a of the bottom portion 56 of the pair of side pieces 57, 58 are extended upward to the damper base portion 34, and the extended portion faces the damper base portion 34. The joining part 82 is provided, and the joining part 82 is joined to the damper base part 34 by spot welding as an example.
The upper portion 58a of the rear side piece 58, the upper portion 56a of the bottom portion 56, and the joint portion 82 constitute an upper end portion 81 of the front support bracket 41.

ここで、前支持ブラケット４１の後側の側片５８を接合部８２を介してダンパーベース部３４に接合した理由は以下の通りである。
すなわち、一対の側片５７，５８のうち前側の側片５７を、ホイールハウス１３の前側壁７７に接合する。よって、前側の側片５７の剛性を確保することが可能である。
これに対して、後側の側片５８は、ホイールハウス１３の側壁７６に接合しない。そこで、後側の側片５８を接合部８２を介してダンパーベース部３４に接合することで、後側の側片５８の剛性を確保する。 Here, the reason why the rear side piece 58 of the front support bracket 41 is joined to the damper base portion 34 via the joint portion 82 is as follows.
That is, the front side piece 57 of the pair of side pieces 57 and 58 is joined to the front side wall 77 of the wheel house 13. Therefore, it is possible to ensure the rigidity of the front side piece 57.
On the other hand, the rear side piece 58 is not joined to the side wall 76 of the wheel house 13. Therefore, the rigidity of the rear side piece 58 is ensured by joining the rear side piece 58 to the damper base portion 34 via the joint portion 82.

後支持ブラケット４２は、前支持ブラケット４１と同様に、上下に延びる底部６３及びこの底部６３の両側から突出した一対の側片６４，６５で断面略コ字形に形成し、底部６３をホイールハウス１３の側壁７６に接合するとともに、一対の側片６４，６５のうち後側の側片６５をホイールハウス１３の後側壁７８に接合し、一対の側片６４，６５に、それぞれ取付孔６６，６６を備える。   Similar to the front support bracket 41, the rear support bracket 42 is formed in a substantially U-shaped cross section with a bottom 63 extending vertically and a pair of side pieces 64, 65 protruding from both sides of the bottom 63. Of the pair of side pieces 64 and 65, the rear side piece 65 is joined to the rear side wall 78 of the wheel house 13, and the pair of side pieces 64 and 65 are respectively attached to the mounting holes 66 and 66. Is provided.

後支持ブラケット４２の上端部８４をダンパーベース部３４まで延ばすとともに、この上端部８４をダンパーベース部３４に接合する。
具体的には、一対の側片６４，６５のうち前側の側片６４の上部６４ａおよび底部６３の上部６３ａをダンパーベース部３４まで上方に延ばし、延ばした部位にダンパーベース部３４に対向する接合部８５を備え、接合部８５をダンパーベース部３４に接合する。
前側の側片６４の上部６４ａ、底部６３の上部６３ａおよび接合部８５で、後支持ブラケット４２の上端部８４を構成する。 The upper end portion 84 of the rear support bracket 42 is extended to the damper base portion 34, and the upper end portion 84 is joined to the damper base portion 34.
Specifically, the upper portion 64a of the front side piece 64 and the upper portion 63a of the bottom portion 63 of the pair of side pieces 64, 65 are extended upward to the damper base portion 34, and the extended portions are joined to face the damper base portion 34. The joint portion 85 is joined to the damper base portion 34.
The upper portion 64a of the front side piece 64, the upper portion 63a of the bottom portion 63, and the joint portion 85 constitute an upper end portion 84 of the rear support bracket 42.

ここで、後支持ブラケット４２の前側の側片６４を接合部８５を介してダンパーベース部３４に接合した理由は以下の通りである。
すなわち、一対の側片６４，６５のうち後側の側片６５を、ホイールハウス１３の後側壁７８に接合する。よって、後側の側片６５の剛性を確保することが可能である。
これに対して、前側の側片６４は、ホイールハウス１３の側壁７６に接合しない。そこで、前側の側片６４を接合部８５を介してダンパーベース部３４に接合することで、前側の側片６４の剛性を確保する。 Here, the reason why the side piece 64 on the front side of the rear support bracket 42 is joined to the damper base portion 34 via the joining portion 85 is as follows.
That is, the rear side piece 65 of the pair of side pieces 64 and 65 is joined to the rear side wall 78 of the wheel house 13. Therefore, it is possible to ensure the rigidity of the rear side piece 65.
On the other hand, the front side piece 64 is not joined to the side wall 76 of the wheel house 13. Therefore, the rigidity of the front side piece 64 is ensured by joining the front side piece 64 to the damper base portion 34 via the joint portion 85.

図６は本発明に係る後支持ブラケットを示す拡大図である。
前後の支持ブラケット４１，４２は線対称部材であり、同様の構成部材である。そこで、図６においては、後支持ブラケット４２について説明して、前支持ブラケット４１の説明を省略する。
後支持ブラケット４２の上端部８４をダンパーベース部３４まで延ばし、延ばした上端部８４をダンパーベース部３４に接合した。
このように、後支持ブラケット４２の上端部８４をダンパーベース部３４に接合することで、補強部材を新たに加えることなく、後支持ブラケット４２をホイールハウス１３に強固に接合することができる FIG. 6 is an enlarged view showing a rear support bracket according to the present invention.
The front and rear support brackets 41 and 42 are line-symmetric members and are similar constituent members. Therefore, in FIG. 6, the rear support bracket 42 will be described, and the description of the front support bracket 41 will be omitted.
The upper end portion 84 of the rear support bracket 42 was extended to the damper base portion 34, and the extended upper end portion 84 was joined to the damper base portion 34.
As described above, by joining the upper end portion 84 of the rear support bracket 42 to the damper base portion 34, the rear support bracket 42 can be firmly joined to the wheel house 13 without newly adding a reinforcing member.

すなわち、後支持ブラケット４２を断面略コ字形とし、この後支持ブラケット４２の前側の側片６４の上部６４ａおよび底部６３の上部６３ａをダンパーベース部３４まで延ばし、延ばした部位に接合部８５を設け、接合部８５をダンパーベース部３４に接合する。
前側の側片６４の上部６４ａを接合部８５を介してダンパーベース部３４に接合することで、前側の側片６４をホイールハウス１３に強固に取り付けることができる。 That is, the rear support bracket 42 has a substantially U-shaped cross section, and the upper portion 64a of the front side piece 64 and the upper portion 63a of the bottom portion 63 of the rear support bracket 42 are extended to the damper base portion 34, and a joint portion 85 is provided at the extended portion. The joining portion 85 is joined to the damper base portion 34.
By joining the upper portion 64 a of the front side piece 64 to the damper base portion 34 via the joint portion 85, the front side piece 64 can be firmly attached to the wheel house 13.

このように、前側の側片６４を接合部８５を介してダンパーベース部３４に接合することで、補強部材を新たに加えることなく、前側の側片６４を上方に延ばすだけの簡単な構成で、後支持ブラケット４２をホイールハウス１３に強固に取り付けることができる。
特に、側片６４の上部６４ａ、底部６３の上部６３ａおよび接合部８５を一体に形成することで、いわゆる箱体の角部と同様の構成とし、前側の側片６４の剛性をより一層高めることができる。
なお、後支持ブラケット４２は接合部８５を一体成形することで、後支持ブラケット４２を簡単に製造することが可能である。 Thus, by joining the front side piece 64 to the damper base portion 34 via the joint portion 85, the front side piece 64 can be simply extended upward without newly adding a reinforcing member. The rear support bracket 42 can be firmly attached to the wheel house 13.
In particular, by integrally forming the upper part 64a of the side piece 64, the upper part 63a of the bottom part 63, and the joint part 85, the configuration is the same as that of the corner of the box, and the rigidity of the front side piece 64 is further enhanced. Can do.
Note that the rear support bracket 42 can be easily manufactured by integrally forming the joint portion 85.

図７（ａ），（ｂ）は本発明に係る自動車の前部車体構造を説明する図であり、（ａ）は比較例を示し、（ｂ）は図１〜図６で説明した実施の形態を実施例として示す。
（ａ）において、ホイールハウス１００の側壁１０１に前後の支持ブラケット１０２，１０３をそれぞれ設け、前支持ブラケット１０２にアッパアーム１０５の前側ボス１０６をボルト１０７で取り付けるとともに、後支持ブラケット１０３にアッパアーム１０５の後側ボス１０８をボルト１０７で取り付ける。 FIGS. 7A and 7B are views for explaining the front body structure of an automobile according to the present invention, FIG. 7A shows a comparative example, and FIG. 7B shows the embodiment described in FIGS. The form is shown as an example.
In (a), front and rear support brackets 102 and 103 are provided on the side wall 101 of the wheel house 100, the front boss 106 of the upper arm 105 is attached to the front support bracket 102 with a bolt 107, and the rear support bracket 103 is attached to the rear of the upper arm 105. The side boss 108 is attached with a bolt 107.

前支持ブラケット１０２の後側の側片１１１は、上端部１１１ａがホイールハウス１００のダンパーベース部１１２に接合されていない。このため、後側の側片１１１が矢印方向に変形する虞がある。
後支持ブラケット１０３の前側の側片１１３は、上端部１１３ａがホイールハウス１００のダンパーベース部１１２に接合されていない。このため、前側の側片１１３が矢印方向に変形する虞がある。 The side piece 111 on the rear side of the front support bracket 102 has an upper end portion 111 a that is not joined to the damper base portion 112 of the wheel house 100. For this reason, the rear side piece 111 may be deformed in the direction of the arrow.
An upper end 113 a of the side piece 113 on the front side of the rear support bracket 103 is not joined to the damper base portion 112 of the wheel house 100. For this reason, there exists a possibility that the front side piece 113 may deform | transform in the arrow direction.

後側の側片１１１の矢印方向への変形を防ぎ、さらに前側の側片１１３の矢印方向への変形を防ぐために、例えば後側の側片１１１や前側の側片１１３を補強する補強部材（図示せず）を新たに加える必要がある。
しかし、補強部材を新たに設けることはコストアップを招き好ましくない。 In order to prevent the rear side piece 111 from being deformed in the arrow direction, and further to prevent the front side piece 113 from being deformed in the arrow direction, for example, a reinforcing member that reinforces the rear side piece 111 or the front side piece 113 ( It is necessary to add a new one (not shown).
However, newly providing a reinforcing member causes an increase in cost and is not preferable.

（ｂ）において、ホイールハウス１３の側壁７６に前後の支持ブラケット４１，４２をそれぞれ設け、前支持ブラケット４１にアッパアーム４７の前側ボス７１をボルト４６で取り付けるとともに、後支持ブラケット４２にアッパアーム４７の後側ボス７２をボルト４６で取り付ける。   In (b), front and rear support brackets 41 and 42 are provided on the side wall 76 of the wheel house 13, and the front boss 71 of the upper arm 47 is attached to the front support bracket 41 with bolts 46, and the rear support bracket 42 is attached to the rear of the upper arm 47. The side boss 72 is attached with a bolt 46.

前支持ブラケット４１は、後側の側片５８の上部５８ａおよび底部５６の上部５６ａをダンパーベース部３４まで上方に延ばし、延ばした部位にダンパーベース部３４に対向する接合部８２を備え、接合部８２をダンパーベース部３４に接合する。よって、後側の側片５８をホイールハウス１３に強固に取り付ける。   The front support bracket 41 includes an upper portion 58a of the rear side piece 58 and an upper portion 56a of the bottom portion 56 that extend upward to the damper base portion 34, and includes a joint portion 82 that faces the damper base portion 34 at the extended portion. 82 is joined to the damper base 34. Therefore, the rear side piece 58 is firmly attached to the wheel house 13.

後支持ブラケット４２は、前側の側片６４の上部６４ａおよび底部６３の上部６３ａをダンパーベース部３４まで上方に延ばし、延ばした部位にダンパーベース部３４に対向する接合部８５を備え、接合部８５をダンパーベース部３４に接合する。よって、前側の側片６４をホイールハウス１３に強固に取り付ける。   The rear support bracket 42 includes an upper portion 64a of the front side piece 64 and an upper portion 63a of the bottom portion 63 that extend upward to the damper base portion 34, and includes a joint portion 85 that faces the damper base portion 34 at the extended portion. Are joined to the damper base portion 34. Therefore, the front side piece 64 is firmly attached to the wheel house 13.

このように、後側の側片５８の上部５８ａを接合部８２を介してダンパーベース部３４に接合するとともに、前側の側片６４の上部６４ａを接合部８５を介してダンパーベース部３４に接合することで、補強部材を新たに加えることなく、簡単な構成で前後の支持ブラケット４１，４２をホイールハウス１３に強固に取り付けることができる。
これにより、重量の増加を抑えることや、コストを抑えることが可能になる。 In this way, the upper portion 58a of the rear side piece 58 is joined to the damper base portion 34 via the joint portion 82, and the upper portion 64a of the front side piece 64 is joined to the damper base portion 34 via the joint portion 85. Thus, the front and rear support brackets 41 and 42 can be firmly attached to the wheel house 13 with a simple configuration without newly adding a reinforcing member.
As a result, it is possible to suppress an increase in weight and cost.

なお、前記実施の形態では、前支持ブラケット４１において、後側の側片５８の上部５８ａをダンパーベース部３４に接合し、後支持ブラケット４２において、前側の側片６４の上部６４ａをダンパーベース部３４に接合した例について説明したが、これに限らないで、前支持ブラケット４１の前後の側片５７，５８の上部をダンパーベース部３４に接合し、後支持ブラケット４２の前後の側片６４，６５の上部をダンパーベース部３４に接合することも可能である。   In the above embodiment, the upper part 58a of the rear side piece 58 is joined to the damper base part 34 in the front support bracket 41, and the upper part 64a of the front side piece 64 is joined to the damper base part in the rear support bracket 42. However, the present invention is not limited thereto, and the upper portions of the front and rear side pieces 57 and 58 of the front support bracket 41 are joined to the damper base portion 34, and the front and rear side pieces 64 and 58 of the rear support bracket 42 are connected. It is also possible to join the upper part of 65 to the damper base part 34.

また、前記実施の形態では、前後の支持ブラケット４１，４２を構成する底部５６，６３を略矩形状に形成し、底部の前後辺に側片を備えた例について説明したが、前後の支持ブラケット４１，４２は、この形状に限らないで、任意に変更することが可能である。   Moreover, in the said embodiment, although the bottom parts 56 and 63 which comprise the front and rear support brackets 41 and 42 were formed in the substantially rectangular shape, and the side piece was provided in the front and back sides of the bottom part, the front and rear support brackets were demonstrated. 41 and 42 are not limited to this shape, and can be arbitrarily changed.

本発明の自動車の前部車体構造は、前輪用のホイールハウスでフロントサスペンションを支えるように構成した自動車に好適である。   The front body structure of an automobile according to the present invention is suitable for an automobile configured to support a front suspension with a wheel house for a front wheel.

本発明に係る自動車の前部車体構造を備えた自動車の斜視図である。1 is a perspective view of an automobile provided with a front body structure of the automobile according to the present invention. 図１の２矢視図である。FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1. 本発明に係る自動車の前部車体構造を示す分解斜視図である。It is a disassembled perspective view which shows the front part vehicle body structure of the motor vehicle based on this invention. 本発明に係る自動車の前部車体構造を構成する前後の支持ブラケットを示す断面図である。It is sectional drawing which shows the support bracket before and behind which comprises the front part vehicle body structure of the motor vehicle based on this invention. 本発明に係る自動車の前部車体構造を構成する前後の支持ブラケットを示す側面図である。It is a side view which shows the support bracket before and behind which comprises the front vehicle body structure of the motor vehicle based on this invention. 本発明に係る後支持ブラケットを示す拡大図である。It is an enlarged view which shows the rear support bracket which concerns on this invention. 本発明に係る自動車の前部車体構造を説明する図である。It is a figure explaining the front part vehicle body structure of the motor vehicle based on this invention. 従来の技術の基本構成を説明する図である。It is a figure explaining the basic composition of the conventional technology.

符号の説明Explanation of symbols

１０…自動車、１３…ホイールハウス、１４…前輪、３０…自動車の前部車体構造、３４…ダンパーベース部、３５…ダンパー、４６…取付ボルト、４７…アッパアーム、４１…前支持ブラケット、４２…後支持ブラケット、５６，６３…底部、５７，６４…前側の側片、５８，６５…後側の側片、７４…ナット、８１…前支持ブラケットの上端部、８２，８５…接合部、８４…後支持ブラケットの上端部。 DESCRIPTION OF SYMBOLS 10 ... Automobile, 13 ... Wheel house, 14 ... Front wheel, 30 ... Front body structure of automobile, 34 ... Damper base part, 35 ... Damper , 46 ... Mounting bolt , 47 ... Upper arm, 41 ... Front support bracket, 42 ... Rear Support bracket, 56, 63 ... bottom, 57, 64 ... front side piece, 58, 65 ... rear side piece , 74 ... nut , 81 ... upper end of front support bracket, 82, 85 ... joint, 84 ... Upper end of rear support bracket.

Claims (2)

前輪の上方に前輪用のホイールハウスを設け、このホイールハウスの天井部をダンパーベース部とし、このダンパーベース部にダンパーを下向きに設け、このダンパーの前後側にそれぞれ前後の支持ブラケットを設け、前後の支持ブラケットでフロントサスペンション用のアッパアームを支える自動車の前部車体構造において、
前記前後の支持ブラケットを、上下に延びる底部と、この底部の両側から突出した一対の側片とで断面略コ字形に形成し、
前記一対の側片のうち、一方の側片の上部に前記ダンパーベース部に対向する接合部を一体形成し、
この接合部を前記ダンパーベース部に接合するとともに、他方の側片および前記底部を前記ホイールハウスに接合したことを特徴とする自動車の前部車体構造。 A wheel house for the front wheel is provided above the front wheel, the ceiling part of this wheel house is used as a damper base part, a damper is provided downward on this damper base part, and front and rear support brackets are provided on the front and rear sides of this damper. In the front car body structure of the automobile that supports the upper arm for the front suspension with the support bracket of
The front and rear support brackets are formed in a substantially U-shaped cross section with a bottom portion extending vertically and a pair of side pieces protruding from both sides of the bottom portion,
Of the pair of side pieces, a joint portion facing the damper base portion is integrally formed on the upper side of one side piece,
A front vehicle body structure for an automobile, wherein the joint portion is joined to the damper base portion, and the other side piece and the bottom portion are joined to the wheel house . 前記前後の支持ブラケットに取付ボルトを介して前記アッパアームを回転自在に支える構成とし、
前記取付ボルトの先端部が、前記ホイールハウスを貫通して反対側の空間となるエンジンルーム側に突出し、突出した先端部にナットがねじ結合されたことを特徴とする請求項１記載の自動車の前部車体構造。 The upper and lower support brackets are configured to rotatably support the upper arm via mounting bolts,
2. The automobile according to claim 1 , wherein a tip end portion of the mounting bolt projects through the wheel house to an engine room side which is an opposite side space, and a nut is screwed to the projecting tip portion . Front body structure.
JP2003337518A 2003-09-29 2003-09-29 Front body structure of automobile Expired - Fee Related JP3938562B2 (en)

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JP4760310B2 (en) * 2005-11-04 2011-08-31 トヨタ自動車株式会社 Vehicle suspension system
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