JP2015174607A - Vehicle body structure - Google Patents

Vehicle body structure Download PDF

Info

Publication number
JP2015174607A
JP2015174607A JP2014054468A JP2014054468A JP2015174607A JP 2015174607 A JP2015174607 A JP 2015174607A JP 2014054468 A JP2014054468 A JP 2014054468A JP 2014054468 A JP2014054468 A JP 2014054468A JP 2015174607 A JP2015174607 A JP 2015174607A
Authority
JP
Japan
Prior art keywords
vehicle body
bulkhead
body frame
continuous carbon
section
Prior art date
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.)
Granted
Application number
JP2014054468A
Other languages
Japanese (ja)
Other versions
JP6235384B2 (en
Inventor
飛田 一紀
Kazunori Hida
一紀 飛田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2014054468A priority Critical patent/JP6235384B2/en
Publication of JP2015174607A publication Critical patent/JP2015174607A/en
Application granted granted Critical
Publication of JP6235384B2 publication Critical patent/JP6235384B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

PROBLEM TO BE SOLVED: To efficiently reinforce a steel vehicle body frame including a closed cross-section with a CFRP bulkhead.SOLUTION: A CFRP bulkhead 16 is arranged within a steel vehicle body frame 12 including a closed cross-section and an entire periphery of the bulkhead 16 is adhesively bonded to an inner surface of the vehicle body frame 12 by foamable resin adhesive 21. With this configuration, it is possible not only for the bulkhead to suppress the deformation of the cross-section of the vehicle body frame 12 and to improve rigidity but also to seal a clearance between the bulkhead 16 and the vehicle body frame 12 with the foamable resin adhesive 21 to suppress the transmission of noise. Furthermore, it is possible to minimize weight increase since the bulkhead 16 is formed of CFRP.

Description

本発明は、閉断面を有する鋼板製の車体フレームの内部にバルクヘッドを配置した自動車の車体構造に関する。   The present invention relates to an automobile body structure in which a bulkhead is disposed inside a steel body frame having a closed cross section.

多数の貫通孔を有するスチフナをアウターパネルおよびインナーパネル間に挟んで自動車のフロントピラーを構成し、インナーパネルおよびスチフナ間の第1閉断面内にCFRP製のバルクヘッドを配置し、第1閉断面内で発泡させた発泡硬化樹脂充填材をスチフナの貫通孔を通してアウターパネルおよびスチフナ間の第2閉断面内にはみ出させることで、インナーパネル、スチフナ、発泡硬化樹脂充填材およびバルクヘッドの結合強度を高めるものが、下記特許文献1により公知である。   A front pillar of an automobile is constructed by sandwiching a stiffener having a large number of through holes between an outer panel and an inner panel, a bulk head made of CFRP is arranged in a first closed section between the inner panel and the stiffener, and a first closed section The foam-cured resin filler that has been foamed inside is projected into the second closed cross-section between the outer panel and the stiffener through the stiffener through-hole, thereby increasing the bond strength of the inner panel, stiffener, foam-cured resin filler, and bulkhead. What is enhanced is known from Patent Document 1 below.

特許第4729027号公報Japanese Patent No. 4729027

しかしながら、上記従来のものは、バルクヘッドの外形形状がインナーパネルおよびスチフナ間の第1閉断面の形状を考慮していないため、バルクヘッドの外周部と第1閉断面の内面との間に大きな隙間が形成されてしまい、バルクヘッドによるフロントピラーの補強効果が充分に発揮されない可能性があった、
本発明は前述の事情に鑑みてなされたもので、閉断面を有する鋼板製の車体フレームをCFRP製のバルクヘッドで効率的に補強することを目的とする。
However, in the above-described conventional one, the outer shape of the bulkhead does not take into account the shape of the first closed cross section between the inner panel and the stiffener, so that the bulkhead is large between the outer periphery of the bulkhead and the inner surface of the first closed cross section. A gap was formed, and there was a possibility that the reinforcing effect of the front pillar by the bulkhead could not be fully demonstrated,
The present invention has been made in view of the above circumstances, and an object thereof is to efficiently reinforce a steel body frame having a closed cross section with a CFRP bulkhead.

上記目的を達成するために、請求項1に記載された発明によれば、閉断面を有する鋼板製の車体フレームの内部にバルクヘッドを配置した自動車の車体構造であって、前記バルクヘッドはCFRP製であり、その全周を前記車体フレームの内面に発泡性樹脂接着剤で接着したことを特徴とする自動車の車体構造が提案される。   In order to achieve the above object, according to the first aspect of the present invention, there is provided a vehicle body structure in which a bulkhead is disposed inside a steel plate body frame having a closed cross section, wherein the bulkhead is a CFRP. A vehicle body structure is proposed, which is manufactured and has its entire periphery bonded to the inner surface of the vehicle body frame with a foaming resin adhesive.

また請求項2に記載された発明によれば、請求項1の構成に加えて、前記バルクヘッドは、衝突荷重の入力による前記車体フレームの断面の変形方向に配向された連続カーボン繊維を備えることを特徴とする自動車の車体構造が提案される。   According to the invention described in claim 2, in addition to the configuration of claim 1, the bulkhead includes continuous carbon fibers oriented in the deformation direction of the cross section of the body frame by the input of a collision load. A vehicle body structure characterized by the above is proposed.

また請求項3に記載された発明によれば、請求項2の構成に加えて、前記連続カーボン繊維は、衝突荷重の入力により前記車体フレームの断面が縮小する方向に配向された第1連続カーボン繊維と、前記車体フレームの断面が拡大する方向に配向された第2連続カーボン繊維とからなり、前記第1、第2連続カーボン繊維の量は、それが配向される方向の変形量に比例することを特徴とする自動車の車体構造が提案される。   According to the invention described in claim 3, in addition to the configuration of claim 2, the continuous carbon fiber is a first continuous carbon oriented in a direction in which a cross section of the vehicle body frame is reduced by an input of a collision load. And a second continuous carbon fiber oriented in a direction in which a cross section of the vehicle body frame expands, and the amount of the first and second continuous carbon fibers is proportional to the amount of deformation in the direction in which it is oriented. A vehicle body structure characterized by this is proposed.

また請求項4に記載された発明によれば、請求項1〜請求項3の何れか1項の構成に加えて、前記バルクヘッドの外周部に前記車体フレームの内面に向かって拡開する発泡方向規制部材を設けたことを特徴とする自動車の車体構造が提案される。   According to the invention described in claim 4, in addition to the structure of any one of claims 1 to 3, the foam expanding toward the inner surface of the vehicle body frame on the outer peripheral portion of the bulkhead. A vehicle body structure is proposed in which a direction regulating member is provided.

また請求項5に記載された発明によれば、請求項1〜請求項4の何れか1項の構成に加えて、前記車体フレームは車体上部および車体下部を接続するピラーであり、前記ピラーの下部に前記バルクヘッドを配置したことを特徴とする自動車の車体構造が提案される。   According to the invention described in claim 5, in addition to the structure of any one of claims 1 to 4, the vehicle body frame is a pillar that connects the vehicle body upper portion and the vehicle body lower portion. A vehicle body structure is proposed in which the bulkhead is arranged at the bottom.

また請求項6に記載された発明によれば、請求項3の構成に加えて、前記バルクヘッドは、前記車体フレームに入力する主たる荷重の方向に延びるビードを備えることを特徴とする自動車の車体構造が提案される。   According to a sixth aspect of the present invention, in addition to the configuration of the third aspect, the bulkhead includes a bead that extends in a direction of a main load that is input to the body frame. A structure is proposed.

尚、実施の形態のDピラー12は本発明の車体フレームに対応し、実施の形態の第1連続カーボン繊維18Aおよび第2連続カーボン繊維18Bは本発明の連続カーボン繊維に対応する。   The D pillar 12 of the embodiment corresponds to the body frame of the present invention, and the first continuous carbon fiber 18A and the second continuous carbon fiber 18B of the embodiment correspond to the continuous carbon fiber of the present invention.

請求項1の構成によれば、閉断面を有する鋼板製の車体フレームの内部にCFRP製のバルクヘッドを配置し、バルクヘッドの全周を車体フレームの内面に発泡性樹脂接着剤で接着したので、バルクヘッドで車体フレームの断面の変形を抑制して曲げ剛性を高めることができるだけでなく、バルクヘッドおよび車体フレーム間の隙間を発泡性樹脂接着剤で塞いで騒音の伝達を抑制することができ、しかもバルクヘッドをCFRP製としたことで重量の増加を最小限に抑えることができる。   According to the configuration of the first aspect, the CFRP bulkhead is disposed inside the steel plate body frame having a closed cross section, and the entire circumference of the bulkhead is bonded to the inner surface of the body frame with the foaming resin adhesive. In addition to suppressing the deformation of the cross section of the body frame with the bulkhead and increasing the bending rigidity, the gap between the bulkhead and the body frame can be blocked with foaming resin adhesive to suppress the transmission of noise. Moreover, the increase in weight can be minimized by making the bulkhead made of CFRP.

また請求項2の構成によれば、バルクヘッドは、衝突荷重の入力による車体フレームの断面の変形方向に配向された連続カーボン繊維を備えるので、バルクヘッドによる車体フレームの断面の変形抑制効果を高めることができる。   According to the second aspect of the present invention, the bulkhead includes continuous carbon fibers oriented in the deformation direction of the cross section of the vehicle body frame due to the input of the collision load, so that the effect of suppressing the deformation of the cross section of the vehicle body frame by the bulkhead is enhanced. be able to.

また請求項3の構成によれば、連続カーボン繊維は、衝突荷重の入力により車体フレームの断面が縮小する方向に配向された第1連続カーボン繊維と、車体フレームの断面が拡大する方向に配向された第2連続カーボン繊維とからなるので、車体フレームに入力する曲げ荷重を第1、第2連続カーボン繊維の引張および圧縮で効率的に支持することができるだけでなく、第1、第2連続カーボン繊維の量は、それが配向される方向の変形量に比例するので、高価な連続カーボン繊維の使用量を最小限に抑えながら必要な強度を確保することができる。   According to the third aspect of the present invention, the continuous carbon fiber is oriented in the direction in which the cross section of the body frame is expanded in the direction in which the cross section of the body frame is reduced by the input of the collision load. The second continuous carbon fiber can be used to efficiently support the bending load input to the vehicle body frame by the tension and compression of the first and second continuous carbon fibers, as well as the first and second continuous carbon fibers. Since the amount of fiber is proportional to the amount of deformation in the direction in which it is oriented, the required strength can be ensured while minimizing the amount of expensive continuous carbon fiber used.

また請求項4の構成によれば、バルクヘッドの外周部に車体フレームの内面に向かって拡開する発泡方向規制部材を設けたので、バルクヘッドの外周部と車体フレームの内面との接着部に発泡性樹脂接着剤を効率的に集中させて接着強度を高めることができる。   According to the fourth aspect of the present invention, since the foam direction regulating member that expands toward the inner surface of the vehicle body frame is provided on the outer peripheral portion of the bulkhead, the adhesive portion between the outer peripheral portion of the bulkhead and the inner surface of the vehicle body frame is provided. The adhesive strength can be increased by efficiently concentrating the foamable resin adhesive.

また請求項5の構成によれば、車体フレームは車体上部および車体下部を接続するピラーであり、ピラーの下部にバルクヘッドを配置したので、スチフナで補強することなく側面衝突の衝突荷重に対するピラーの曲げ剛性を高めることができる。   According to the fifth aspect of the present invention, the vehicle body frame is a pillar that connects the upper part of the vehicle body and the lower part of the vehicle body, and the bulkhead is arranged at the lower part of the pillar. Bending rigidity can be increased.

また請求項6の構成によれば、バルクヘッドは、車体フレームに入力する主たる荷重の方向に延びるビードを備えるので、衝突荷重の入力により車体フレームの断面が縮小する方向の変形をビードにより抑制し、第1連続カーボン繊維の本数を削減することができる。   According to the sixth aspect of the present invention, the bulkhead includes a bead that extends in the direction of the main load that is input to the vehicle body frame. Therefore, deformation in a direction in which the cross section of the vehicle body frame is reduced due to the input of the collision load is suppressed by the bead. The number of first continuous carbon fibers can be reduced.

5ドア車両の車体後部の斜視図。The perspective view of the vehicle body rear part of a 5-door vehicle. 図1の2−2線拡大断面図。FIG. 2 is an enlarged sectional view taken along line 2-2 in FIG. 1. 図2の3−3線断面図。FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. 図3の4部拡大図。FIG. 4 is an enlarged view of part 4 of FIG. 3.

以下、図1〜図4に基づいて本発明の実施の形態を説明する。尚、本明細書において前後方向、左右方向(車幅方向)および上下方向とは、運転席に着座した乗員を基準として定義される。   Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the present specification, the front-rear direction, the left-right direction (vehicle width direction), and the up-down direction are defined with reference to an occupant seated in the driver's seat.

図1および図2に示すように、5ドア車両の車体後部に図示せぬテールゲートで開閉される開口部11が形成されており、開口部11の車幅方向外端に上下方向に延びるDピラー12が配置される。Dピラー12の上端は車体上部のルーフサイドレールの後端に接続され、Dピラー12の下端は車体下部のリヤサイドフレームの後端に接続される。開口部11の周囲は、サイドアウターパネル13の後端に接続するリヤアウタパネルで覆われるが、図1はリヤアウタパネルを取り外した状態を示しており、Dピラー12の一部が露出している。   As shown in FIGS. 1 and 2, an opening 11 that is opened and closed by a tailgate (not shown) is formed at the rear part of a 5-door vehicle body, and extends vertically at the outer end in the vehicle width direction of the opening 11. A pillar 12 is arranged. The upper end of the D pillar 12 is connected to the rear end of the roof side rail at the upper part of the vehicle body, and the lower end of the D pillar 12 is connected to the rear end of the rear side frame at the lower part of the vehicle body. Although the periphery of the opening 11 is covered with a rear outer panel connected to the rear end of the side outer panel 13, FIG. 1 shows a state in which the rear outer panel is removed, and a part of the D pillar 12 is exposed.

Dピラー12は鋼板製のアウターパネル14および鋼板製インナーパネル15を、アウターパネル14の接合フランジ14a,14aとインナーパネル15の接合フランジ15a,15aとを重ね合わせて溶接Wすることで、前後方向に長く、車幅方向に短い閉断面に構成される。Dピラー12の下部には,CFRP製の板状部材よりなるバルクヘッド16が略水平姿勢で配置される。バルクヘッド16の外周部の形状は、それが固定されるDピラー12の断面形状に沿っており、バルクヘッド16の外周部とDピラー12の内面との間には略一定幅の隙間が形成される。   The D-pillar 12 is welded to the outer panel 14 made of steel plate and the inner panel 15 made of steel plate by overlapping the joining flanges 14a, 14a of the outer panel 14 and the joining flanges 15a, 15a of the inner panel 15 in the front-rear direction. The closed cross section is long in the vehicle width direction. A bulkhead 16 made of a CFRP plate-like member is disposed in a substantially horizontal position below the D pillar 12. The shape of the outer peripheral portion of the bulkhead 16 is along the cross-sectional shape of the D pillar 12 to which the bulkhead 16 is fixed, and a gap having a substantially constant width is formed between the outer peripheral portion of the bulkhead 16 and the inner surface of the D pillar 12. Is done.

図2〜図4に示すように、バルクヘッド16は略車幅方向に沿って平行に延びる複数のビード16a…を備える波板状の部材であり、例えば5枚のCFRPシート17…を積層して構成される。各CFRPシート17は一方向に引き揃えた多数の連続カーボン繊維18A…,18B…をマトリクス樹脂で固めたものであり、5枚のCFRPシート17…のうちの4枚(a)、(b)、(d)、(e)は第1連続カーボン繊維18A…の配向方向が略車幅方向に沿い、残りの1枚(c)は第2連続カーボン繊維18B…の配向方向が略前後方向に沿うように配置される(図4参照)。言い換えると、4枚のCFRPシート17…は第1連続カーボン繊維18A…の配向方向がビード16a…の方向と平行であり、1枚のCFRPシート17は第2連続カーボン繊維18B…の配向方向がビード16a…の方向と直交する。   As shown in FIGS. 2 to 4, the bulkhead 16 is a corrugated member having a plurality of beads 16 a... Extending in parallel in a substantially vehicle width direction. For example, five CFRP sheets 17 are laminated. Configured. Each CFRP sheet 17 is obtained by solidifying a large number of continuous carbon fibers 18A,..., 18B,... Aligned in one direction with a matrix resin, and four of the five CFRP sheets 17. , (D), (e), the orientation direction of the first continuous carbon fibers 18A... Is substantially along the vehicle width direction, and the remaining one (c) is the orientation direction of the second continuous carbon fibers 18B. It arrange | positions so that it may follow (refer FIG. 4). In other words, the four CFRP sheets 17... Have the orientation direction of the first continuous carbon fibers 18A ... parallel to the direction of the beads 16a ..., and the one CFRP sheet 17 has the orientation direction of the second continuous carbon fibers 18B ... It is orthogonal to the direction of the beads 16a.

バルクヘッド16の一辺には2個の合成樹脂製のクリップ19,19が固定されており、これらのクリップ19,19の脚部19a,19aを例えばアウターパネル14のクリップ孔14b,14b(図3(A)参照)に圧入することで、バルクヘッド16をDピラー12の内部の所定位置に所定姿勢で仮止めすることができる。またバルクヘッド16の外周部には、その外側に向かってV字状に拡開する上下一対の合成樹脂製の発泡方向規制部材20,20が接着等により固定される。従って、アウターパネル14あるいはインナーパネル15の内面と、発泡方向規制部材20,20との間には、バルクヘッド16の外周部を取り囲む断面三角形の空間が区画される。   Two synthetic resin clips 19, 19 are fixed to one side of the bulkhead 16, and the leg portions 19 a, 19 a of these clips 19, 19 are connected to, for example, clip holes 14 b, 14 b (FIG. 3). The bulkhead 16 can be temporarily fixed at a predetermined position inside the D pillar 12 in a predetermined posture by press-fitting into (A). Further, a pair of upper and lower synthetic resin foaming direction regulating members 20, 20 that are expanded in a V shape toward the outer side of the bulkhead 16 are fixed by adhesion or the like. Accordingly, a triangular space that surrounds the outer peripheral portion of the bulkhead 16 is defined between the inner surface of the outer panel 14 or the inner panel 15 and the foaming direction regulating members 20 and 20.

次に、上記構成を備えた本発明の実施の形態の作用を説明する。   Next, the operation of the embodiment of the present invention having the above configuration will be described.

先ず、前処理工程で、バルクヘッド16に予めクリップ19,19および発泡方向規制部材20,20を固定するとともに、上下の発泡方向規制部材20,20間に未発泡の発泡性樹脂接着剤21を添付しておく。次に、このバルクヘッド16をDピラー12の内部に挿入してクリップ19,19の脚部19a,19aをアウターパネル14のクリップ孔14b,14bに圧入することで、バルクヘッド16を所定位置に仮止めする。   First, in the pretreatment step, the clips 19 and 19 and the foaming direction regulating members 20 and 20 are fixed to the bulkhead 16 in advance, and an unfoamed foamable resin adhesive 21 is placed between the upper and lower foaming direction regulating members 20 and 20. Attach it. Next, the bulkhead 16 is inserted into the D pillar 12 and the legs 19a and 19a of the clips 19 and 19 are press-fitted into the clip holes 14b and 14b of the outer panel 14, thereby bringing the bulkhead 16 into a predetermined position. Temporarily fix.

この状態で、例えば塗装の乾燥工程で車体を加熱すると、発泡性樹脂接着剤21が発泡膨張して硬化することで、バルクヘッド16の外周部をDピラー12のアウターパネル14およびインナーパネル15の内面に接着する。このとき、Dピラー12の内面に向けて拡開する発泡方向規制部材20,20で発泡膨張する発泡性樹脂接着剤21をバルクヘッド16およびDピラー12の内面の接着部に集中させることで、前記接着部を効率的かつ強固に接着することができる。しかも硬化した発泡性樹脂接着剤21が接着部を肉盛りする形になることで、接着強度が更に高められる。   In this state, for example, when the vehicle body is heated in a coating drying process, the foamable resin adhesive 21 expands and hardens, so that the outer peripheral portion of the bulkhead 16 is connected to the outer panel 14 and the inner panel 15 of the D pillar 12. Adhere to the inner surface. At this time, by concentrating the foamable resin adhesive 21 that expands and expands with the foaming direction regulating members 20 and 20 that expand toward the inner surface of the D pillar 12 on the adhesive portion of the inner surface of the bulkhead 16 and the D pillar 12, The bonding portion can be bonded efficiently and firmly. In addition, the cured foamable resin adhesive 21 has a shape that builds up the bonded portion, thereby further increasing the adhesive strength.

さて、車両が側面衝突されてDピラー12の下部に車幅方向内向きの衝突荷重が入力したとき、Dピラー12の下部にバルクヘッド16を配置したので、Dピラー12の内部にスチフナを配置して補強することなく側面衝突の衝突荷重に対するDピラー12の曲げ剛性を高めることができ、Dピラー12の重力削減に寄与することができる。このとき、バルクヘッド16は、Dピラー12に入力する側面衝突の衝突荷重の主たる入力方向である車幅方向に延びるビード16a…を備えるので、衝突荷重の入力によりDピラー12の断面が縮小する方向の変形をビード16a…により抑制し、第1連続カーボン繊維18A…の本数を削減することができる。   Now, when the vehicle is collided to the side and a collision load inward in the vehicle width direction is input to the lower part of the D pillar 12, the bulkhead 16 is arranged at the lower part of the D pillar 12, so the stiffener is arranged inside the D pillar 12. Thus, it is possible to increase the bending rigidity of the D pillar 12 with respect to the collision load of the side collision without reinforcing, thereby contributing to the gravity reduction of the D pillar 12. At this time, since the bulkhead 16 includes the beads 16a... Extending in the vehicle width direction, which is the main input direction of the collision load of the side collision input to the D pillar 12, the cross section of the D pillar 12 is reduced by the input of the collision load. The deformation of the direction can be suppressed by the beads 16a, and the number of the first continuous carbon fibers 18A can be reduced.

側面衝突の衝突荷重によりDピラー12は略車幅方向に圧縮変形して略前後方向に引張変形するが、バルクヘッド16は、それを構成する5枚のCFRPシート17…の第1、第2連続カーボン繊維18A…,18B…の配向方向が略車幅方向および略前後方向に沿っているので、第1、第2連続カーボン繊維18A…,18B…でDピラー12の圧縮変形および引張変形を効果的に抑制することができる。   The D-pillar 12 is compressed and deformed substantially in the vehicle width direction and is pulled and deformed substantially in the front-rear direction by the collision load of the side collision, but the bulkhead 16 is composed of the first and second of the five CFRP sheets 17. Since the orientation direction of the continuous carbon fibers 18A ..., 18B ... is substantially along the vehicle width direction and the substantially front-rear direction, the first and second continuous carbon fibers 18A ..., 18B ... are subjected to compressive deformation and tensile deformation of the D pillar 12. It can be effectively suppressed.

このとき、Dピラー12の略車幅方向の圧縮変形量と、略前後方向の引張変形との比は例えば4:1になるが、積層されてバルクヘッド16を構成する5枚のCFRPシート17…のうちの4枚(a)、(b)、(d)、(e)は第1連続カーボン繊維18A…の配向方向が略車幅方向に沿い、残りの1枚(c)は第2連続カーボン繊維18B…の配向方向が略前後方向に沿うように配置されるため(図4参照)、バルクヘッド16の強度を変形量に応じて配分することで、高価な炭素繊維の使用量を最小限に抑えながらバルクヘッド16の強度を最大限に高めることができる。   At this time, the ratio of the amount of compressive deformation in the substantially vehicle width direction of the D pillar 12 and the tensile deformation in the substantially front-rear direction is, for example, 4: 1, but the five CFRP sheets 17 constituting the bulkhead 16 are stacked. Of the four sheets (a), (b), (d), and (e), the orientation direction of the first continuous carbon fibers 18A is substantially along the vehicle width direction, and the remaining one sheet (c) is the second. Since the orientation directions of the continuous carbon fibers 18B... Are arranged substantially along the front-rear direction (see FIG. 4), the amount of expensive carbon fibers used can be reduced by allocating the strength of the bulkhead 16 according to the amount of deformation. The strength of the bulkhead 16 can be maximized while minimizing it.

またCFRP製のバルクヘッド16の全周をDピラー12内面に発泡性樹脂接着剤21で接着したので、バルクヘッド16でDピラー12の断面の変形を抑制して曲げ剛性を高めることができるだけでなく、バルクヘッド16およびDピラー12間の隙間を発泡性樹脂接着剤21で塞いで騒音の伝達を抑制することができ、しかもバルクヘッド16をCFRP製としたことで重量の増加を最小限に抑えることができる。更に、バルクヘッド16の外周部にDピラー12の内面に向かって拡開する発泡方向規制部材20,20を設けたので、バルクヘッド16の外周部とDピラー12の内面との接着部に発泡性樹脂接着剤21を効率的に集中させて接着強度を高めることができる。   Further, since the entire circumference of the CFRP bulk head 16 is adhered to the inner surface of the D pillar 12 with the foamable resin adhesive 21, the bulk head 16 can only suppress the deformation of the cross section of the D pillar 12 and increase the bending rigidity. In addition, the gap between the bulkhead 16 and the D-pillar 12 can be blocked with the foamable resin adhesive 21 to suppress noise transmission, and the bulkhead 16 is made of CFRP to minimize the increase in weight. Can be suppressed. Further, since the foaming direction regulating members 20 and 20 that expand toward the inner surface of the D pillar 12 are provided on the outer peripheral portion of the bulkhead 16, foaming occurs at the bonding portion between the outer peripheral portion of the bulkhead 16 and the inner surface of the D pillar 12. The adhesive strength can be increased by efficiently concentrating the adhesive resin adhesive 21.

以上、本発明の実施の形態を説明したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。   The embodiments of the present invention have been described above, but various design changes can be made without departing from the scope of the present invention.

例えば、本発明の車体フレームは実施の形態のDピラー12に限定されるものではなく、車体外側のアウターパネル14および車体内側のインナーパネル15を接合して閉断面に構成した車体フレームであれば良い。   For example, the vehicle body frame of the present invention is not limited to the D-pillar 12 of the embodiment, and may be any vehicle frame that has a closed cross section formed by joining the outer panel 14 on the outer side of the vehicle body and the inner panel 15 on the inner side of the vehicle body. good.

またバルクヘッド16を仮止めするクリップ19,19の数は2個に限定されず、1個あるいは3個以上であっても良い。   Further, the number of clips 19, 19 for temporarily fixing the bulkhead 16 is not limited to two, and may be one or three or more.

またバルクヘッド16を構成するCFRPシート17の積層数は実施の形態の5層に限定されるものではない。   Further, the number of stacked CFRP sheets 17 constituting the bulkhead 16 is not limited to the five layers in the embodiment.

また略車幅方向に配向される第1連続カーボン繊維18A…と略前後方向に配置される第2連続カーボン繊維18B…との比率は実施の形態に4:1に限定されず、第1、第2連続カーボン繊維18A…,18B…が配向される方向の変形量に応じた比率にすれば良い。   Further, the ratio of the first continuous carbon fibers 18A oriented in the substantially vehicle width direction and the second continuous carbon fibers 18B arranged in the substantially front-rear direction is not limited to 4: 1 in the embodiment, What is necessary is just to set it as the ratio according to the deformation amount of the direction where 2nd continuous carbon fiber 18A ..., 18B ... is orientated.

12 Dピラー(車体フレーム)
16 バルクヘッド
16a ビード
18A 第1連続カーボン繊維(連続カーボン繊維)
18B 第2連続カーボン繊維(連続カーボン繊維)
20 発泡方向規制部材
21 発泡性樹脂接着剤
12 D pillar (body frame)
16 Bulkhead 16a Bead 18A First continuous carbon fiber (continuous carbon fiber)
18B 2nd continuous carbon fiber (continuous carbon fiber)
20 Foaming direction regulating member 21 Foamable resin adhesive

Claims (6)

閉断面を有する鋼板製の車体フレーム(12)の内部にバルクヘッド(16)を配置した自動車の車体構造であって、
前記バルクヘッド(16)はCFRP製であり、その全周を前記車体フレーム(12)の内面に発泡性樹脂接着剤(21)で接着したことを特徴とする自動車の車体構造。
A vehicle body structure for an automobile in which a bulkhead (16) is disposed inside a steel body frame (12) having a closed cross section,
The bulkhead (16) is made of CFRP, and the entire circumference of the bulkhead (16) is bonded to the inner surface of the vehicle body frame (12) with a foaming resin adhesive (21).
前記バルクヘッド(16)は、衝突荷重の入力による前記車体フレーム(12)の断面の変形方向に配向された連続カーボン繊維(18A,18B)を備えることを特徴とする、請求項1に記載の自動車の車体構造。   The said bulkhead (16) is provided with the continuous carbon fiber (18A, 18B) oriented in the deformation | transformation direction of the cross section of the said vehicle body frame (12) by the input of a collision load, The claim 1 characterized by the above-mentioned. Auto body structure. 前記連続カーボン繊維(18A,18B)は、衝突荷重の入力により前記車体フレーム(12)の断面が縮小する方向に配向された第1連続カーボン繊維(18A)と、前記車体フレーム(12)の断面が拡大する方向に配向された第2連続カーボン繊維(18B)とからなり、前記第1、第2連続カーボン繊維(18A,18B)の量は、それが配向される方向の変形量に比例することを特徴とする、請求項2に記載の自動車の車体構造。   The continuous carbon fibers (18A, 18B) include a first continuous carbon fiber (18A) oriented in a direction in which a cross section of the vehicle body frame (12) is reduced by an input of a collision load, and a cross section of the vehicle body frame (12). Of the second continuous carbon fibers (18B) oriented in the direction in which the first and second continuous carbon fibers (18B) are expanded, and the amount of the first and second continuous carbon fibers (18A, 18B) is proportional to the amount of deformation in the direction in which they are oriented. The vehicle body structure according to claim 2, wherein the vehicle body structure is a vehicle. 前記バルクヘッド(16)の外周部に前記車体フレーム(12)の内面に向かって拡開する発泡方向規制部材(20)を設けたことを特徴とする、請求項1〜請求項3の何れか1項に記載の自動車の車体構造。   The foaming direction regulating member (20) that expands toward the inner surface of the vehicle body frame (12) is provided on the outer periphery of the bulkhead (16). 2. A vehicle body structure according to item 1. 前記車体フレーム(12)は車体上部および車体下部を接続するピラーであり、前記ピラーの下部に前記バルクヘッド(16)を配置したことを特徴とする、請求項1〜請求項4の何れか1項に記載の自動車の車体構造。   The vehicle body frame (12) is a pillar connecting an upper portion of the vehicle body and a lower portion of the vehicle body, and the bulkhead (16) is disposed at a lower portion of the pillar, wherein any one of claims 1 to 4 is provided. The vehicle body structure described in the paragraph. 前記バルクヘッド(16)は、前記車体フレーム(12)に入力する主たる荷重の方向に延びるビード(16a)を備えることを特徴とする、請求項3に記載の自動車の車体構造。   The vehicle body structure according to claim 3, wherein the bulkhead (16) includes a bead (16a) extending in a direction of a main load inputted to the vehicle body frame (12).
JP2014054468A 2014-03-18 2014-03-18 Auto body structure Active JP6235384B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014054468A JP6235384B2 (en) 2014-03-18 2014-03-18 Auto body structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014054468A JP6235384B2 (en) 2014-03-18 2014-03-18 Auto body structure

Publications (2)

Publication Number Publication Date
JP2015174607A true JP2015174607A (en) 2015-10-05
JP6235384B2 JP6235384B2 (en) 2017-11-22

Family

ID=54254164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014054468A Active JP6235384B2 (en) 2014-03-18 2014-03-18 Auto body structure

Country Status (1)

Country Link
JP (1) JP6235384B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016116322A1 (en) 2015-09-04 2017-03-09 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Braking device for an electric winch
CN108438056A (en) * 2018-02-07 2018-08-24 山东科技职业学院 A kind of high-air-tightness body of a motor car
JP2018139029A (en) * 2017-02-24 2018-09-06 Jfeスチール株式会社 Method and device of optimizing shape of reinforcing member for vehicle body
CN110696926A (en) * 2019-10-24 2020-01-17 武汉格罗夫氢能汽车有限公司 Carbon fiber composite material hydrogen energy automobile A column structure and manufacturing method thereof
WO2020017645A1 (en) * 2018-07-20 2020-01-23 日本製鉄株式会社 Vehicle structural member

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1148780A (en) * 1997-06-06 1999-02-23 Kiyouhou Seisakusho:Kk Tubular structural member of body for vehicle and reinforcement thereof
JP2003532152A (en) * 2000-05-01 2003-10-28 シカ コーポレーション Baffle and reinforcement assemblies
JP2008120179A (en) * 2006-11-10 2008-05-29 Toyota Auto Body Co Ltd Vehicle body lower structure
JP2009061864A (en) * 2007-09-05 2009-03-26 Honda Motor Co Ltd Vehicle body frame structure
JP2009274693A (en) * 2008-05-19 2009-11-26 Toyota Motor Corp Reinforcing structure of vehicle skeleton member
JP2012135977A (en) * 2010-12-27 2012-07-19 Mazda Motor Corp Method for manufacturing hollow structure with foamed reinforcing member
JP2014024392A (en) * 2012-07-25 2014-02-06 Honda Motor Co Ltd Vehicle body front structure
JP2015044461A (en) * 2013-08-27 2015-03-12 トヨタ自動車株式会社 Skeleton structure of vehicle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1148780A (en) * 1997-06-06 1999-02-23 Kiyouhou Seisakusho:Kk Tubular structural member of body for vehicle and reinforcement thereof
JP2003532152A (en) * 2000-05-01 2003-10-28 シカ コーポレーション Baffle and reinforcement assemblies
JP2008120179A (en) * 2006-11-10 2008-05-29 Toyota Auto Body Co Ltd Vehicle body lower structure
JP2009061864A (en) * 2007-09-05 2009-03-26 Honda Motor Co Ltd Vehicle body frame structure
JP2009274693A (en) * 2008-05-19 2009-11-26 Toyota Motor Corp Reinforcing structure of vehicle skeleton member
JP2012135977A (en) * 2010-12-27 2012-07-19 Mazda Motor Corp Method for manufacturing hollow structure with foamed reinforcing member
JP2014024392A (en) * 2012-07-25 2014-02-06 Honda Motor Co Ltd Vehicle body front structure
JP2015044461A (en) * 2013-08-27 2015-03-12 トヨタ自動車株式会社 Skeleton structure of vehicle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016116322A1 (en) 2015-09-04 2017-03-09 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Braking device for an electric winch
DE102016116322B4 (en) * 2015-09-04 2017-10-19 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Braking device for an electric winch
JP2018139029A (en) * 2017-02-24 2018-09-06 Jfeスチール株式会社 Method and device of optimizing shape of reinforcing member for vehicle body
CN108438056A (en) * 2018-02-07 2018-08-24 山东科技职业学院 A kind of high-air-tightness body of a motor car
CN108438056B (en) * 2018-02-07 2019-12-10 山东科技职业学院 High gas tightness automobile body
WO2020017645A1 (en) * 2018-07-20 2020-01-23 日本製鉄株式会社 Vehicle structural member
CN110696926A (en) * 2019-10-24 2020-01-17 武汉格罗夫氢能汽车有限公司 Carbon fiber composite material hydrogen energy automobile A column structure and manufacturing method thereof
CN110696926B (en) * 2019-10-24 2024-02-06 武汉格罗夫氢能汽车有限公司 Hydrogen energy automobile A column structure of carbon fiber composite material and manufacturing method thereof

Also Published As

Publication number Publication date
JP6235384B2 (en) 2017-11-22

Similar Documents

Publication Publication Date Title
JP6172695B2 (en) Auto body structure
US9963172B2 (en) Body structure of vehicle
JP6235384B2 (en) Auto body structure
JP4147238B2 (en) Axle structure for automobile
US10150511B2 (en) Body structure of vehicle
JP6032629B2 (en) Automobile center pillar structure
JP2013212730A (en) Vehicle
JP2009061864A (en) Vehicle body frame structure
JP6954777B2 (en) Steering support structure
JP6112672B2 (en) Auto body structure
JP6228256B2 (en) Auto body structure
JP5802598B2 (en) vehicle
JP2012056407A (en) Reinforcing structure in vehicle body framework for vehicle
JP2017171154A (en) Fitting structure of vehicle body panel
JP2015157595A (en) Automobile body structure of automobile
JP2018192948A (en) Vehicle body understructure
JP6232987B2 (en) Body plastic panel structure
JP5830452B2 (en) Car body rear structure
KR20190071988A (en) Roof panel assembly of vehicle
KR101490935B1 (en) Seat cross member unit for vehicle
JP2013216201A (en) Automobile cfrp cabin
JP2017185902A (en) Vehicular hood
JP6727039B2 (en) Car front frame structure
JP6281588B2 (en) Vehicle panel structure
JP2020040593A (en) Vehicle front part structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20161129

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20170804

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170823

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20170908

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170911

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20171004

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20171026

R150 Certificate of patent or registration of utility model

Ref document number: 6235384

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150