JPH06227427A - Connecting part structure of car body member - Google Patents
Connecting part structure of car body memberInfo
- Publication number
- JPH06227427A JPH06227427A JP2121493A JP2121493A JPH06227427A JP H06227427 A JPH06227427 A JP H06227427A JP 2121493 A JP2121493 A JP 2121493A JP 2121493 A JP2121493 A JP 2121493A JP H06227427 A JPH06227427 A JP H06227427A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle body
- energy absorbing
- joint
- members
- absorbing member
- 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
Links
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、主に車両の骨格構造
を形成するフレーム部材等の連結部におけるエネルギ吸
収効率を向上させた車体部材の連結部構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body member connecting portion structure having improved energy absorbing efficiency mainly at a connecting portion such as a frame member forming a frame structure of a vehicle.
【０００２】[0002]
【従来の技術】従来からこの種のものとしては、例えば
図２２乃至図２４に示すようなものがある（米国特許第
４６１８１６３号公報等参照）。2. Description of the Related Art Conventionally, as this type, for example, there is one shown in FIGS. 22 to 24 (see US Pat. No. 4,618,163).
【０００３】このようなものでは、閉断面構造のアルミ
軽合金製のフレーム部材１を同じくアルミ軽合金製のジ
ョイント部材２に嵌合結合して車体骨格構造の一部を形
成する様にしている。In such a structure, a frame member 1 made of an aluminum light alloy having a closed cross-section structure is fitted and coupled to a joint member 2 made of an aluminum light alloy to form a part of a vehicle body skeletal structure. .
【０００４】このフレーム部材１とジョイント部材２と
が互いに嵌合された連結部３は、アーク溶接又は接着に
より接合されている。このフレーム部材１は、一般に、
押し出し成形により形成されている。また、ジョイント
部材２は、鋳造により形成されるのが、一般的である。The connecting portion 3 in which the frame member 1 and the joint member 2 are fitted to each other is joined by arc welding or bonding. This frame member 1 is generally
It is formed by extrusion molding. Moreover, the joint member 2 is generally formed by casting.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の構造では、押し出し材であるフレーム部材１
と、鋳造材であるジョイント部材２とをアーク溶接また
は、接着により接合しているため、許容範囲を越える外
力が加わり、連結部３に曲げモーメントＭが生じた場
合、図２３中二点鎖線に示すように、塑性変形を起こ
し、フレーム部材１又はジョイント部材２の連結部３近
傍に割れが発生する。However, in such a conventional structure, the frame member 1 which is an extruded member is used.
23 and the joint member 2 which is a cast material are joined by arc welding or adhesion, when an external force exceeding the allowable range is applied and a bending moment M is generated in the connecting portion 3, a two-dot chain line in FIG. As shown, plastic deformation occurs and cracks occur in the vicinity of the connecting portion 3 of the frame member 1 or the joint member 2.
【０００６】この場合の連結部３における荷重に対する
変位の関係を示すと図２４に示すようなグラフ図とな
る。すなわち、図中実線で示すように、変位量Ｓの増加
と共に荷重Ｆも減少し、割れが発生した位置４を越える
と、負荷荷重Ｆが急激に減少してしまう。従って、図２
４中一点鎖線で示す理想的な特性曲線６と比較して、斜
線部Ｂの面積分、エネルギー吸収量が減少する。してみ
れば、負荷荷重Ｆが急激に減少しないほうが、エネルギ
ーを有効に吸収することが出来る。FIG. 24 is a graph showing the relationship of the displacement of the connecting portion 3 with respect to the load in this case. That is, as indicated by the solid line in the figure, the load F decreases as the displacement amount S increases, and when the position 4 where the crack occurs is exceeded, the load F decreases sharply. Therefore, FIG.
4, the energy absorption amount is reduced by the area of the shaded portion B as compared with the ideal characteristic curve 6 indicated by the alternate long and short dash line. Therefore, if the applied load F does not decrease sharply, the energy can be effectively absorbed.
【０００７】そこで、特性曲線６と同じエネルギー吸収
量を同一材料で得ようとすると、従来の構造では、特性
曲線７となるよう、つまり、斜線部Ａの面積が斜線部Ｂ
の面積と等しくなるように、フレーム部材１及びジョイ
ント部材２の板厚を設定する必要がある。Therefore, if the same energy absorption amount as the characteristic curve 6 is to be obtained with the same material, the characteristic curve 7 is obtained in the conventional structure, that is, the area of the shaded portion A is the shaded portion B.
It is necessary to set the plate thicknesses of the frame member 1 and the joint member 2 so as to be equal to the area.
【０００８】しかし、このように板厚を増加させても、
割れが発生することに変わりなく、フレーム部材１及び
ジョイント部材２の板厚の増加により、車両重量が増加
するという問題もあった。However, even if the plate thickness is increased in this way,
There is also a problem that the vehicle weight increases due to the increase in the plate thicknesses of the frame member 1 and the joint member 2 as well as the occurrence of cracks.
【０００９】この発明は、連結される車体部材の重量を
増加させることなく、負荷荷重の急激な減少を抑えて、
理想的に近いエネルギ吸収特性を得ることができる車体
部材の連結部構造を提供することを課題としている。According to the present invention, it is possible to suppress a sudden decrease in the applied load without increasing the weight of the body members to be connected,
An object of the present invention is to provide a vehicle body member connecting portion structure capable of obtaining energy absorption characteristics that are close to ideal.
【００１０】[0010]
【課題を解決するための手段】フレーム部材とジョイン
ト部材の２つの車体部材の端部を突合わせて接合すると
共に、該接合部に両車体部材に跨るように易破断部と屈
進部とからなるエネルギ吸収部材を設け、該両車体部材
に接合部から折れ曲がる方向に外力が作用した時に、前
記エネルギ吸収部材が延断することによりエネルギーを
吸収することを特徴とする車体部材の連結部構造。A frame member and a joint member are joined together by abutting the end portions of two vehicle body members, and the joint portion is formed from an easily breakable portion and a bending portion so as to straddle both vehicle body members. A structure for connecting a vehicle body member, wherein the energy absorbing member is provided, and when an external force acts on the two vehicle body members in a bending direction from the joint portion, the energy absorbing member extends and cuts to absorb energy.
【００１１】請求項２に記載の発明は、前記エネルギ吸
収部材は、該接合部の全周に渡って配設されるように、
互いに連結される複数の板材を有し、一の板材の端部に
外側に折曲するフランジ部が形成され、他の板材の端部
に前記フランジ部を両面側から把持する折畳み部が形成
され、該折畳み部は、前記フランジ部の一側面に当接す
る先端部側片と、前記フランジ部の他側面に当接する基
部側片とを形成すると共に、前記フランジ部と折畳み部
とを連結手段にて連結し、該連結手段は、該両車体部材
に接合部から折れ曲がる方向に外力が作用した時に、前
記基部側片とフランジ部とが離間させられると共に、前
記先端部側片とフランジ部との連結状態を維持すること
を特徴としている。According to a second aspect of the present invention, the energy absorbing member is arranged over the entire circumference of the joint portion.
A plurality of plate members connected to each other are formed, and a flange portion that is bent outward is formed at an end portion of one plate member, and a folded portion that holds the flange portion from both sides is formed at an end portion of another plate member. The folding portion forms a tip side piece that abuts one side surface of the flange portion and a base side piece that abuts the other side surface of the flange portion, and uses the flange portion and the folding portion as a connecting means. The connecting means separates the base side piece and the flange portion from each other when an external force acts on the both vehicle body members in a bending direction from the joint portion, and the front side piece and the flange portion are separated from each other. It is characterized by maintaining the connected state.
【００１２】請求項３に記載の発明は、前記連結手段
は、前記フランジ部の一側面と、前記折畳み部の先端部
側片とを接合すると共に、前記フランジ部の他側面と前
記折畳み部の基部側片とを接合するスポット溶接である
ことを特徴としている。According to a third aspect of the present invention, the connecting means joins one side surface of the flange portion and a tip side piece of the folding portion, and the other side surface of the flange portion and the folding portion. It is characterized by spot welding that joins the base side piece.
【００１３】請求項４に記載の発明は、前記連結手段
は、リベットからなり、該リベットは、軸部の途中でフ
ランジ部の基部側一側面に当接する位置に中間頭部を設
け、該中間頭部と頭部との間に軸方向に作用する外力に
よって、軸部の中間頭部と先端部との間よりも破断し易
い切断部を設けたことを特徴としている。According to a fourth aspect of the present invention, the connecting means comprises a rivet, and the rivet is provided with an intermediate head portion at a position in contact with one side surface on the base side of the flange portion in the middle of the shaft portion. It is characterized in that a cutting portion is provided between the head portion and the head portion which is more easily broken than between the intermediate head portion and the tip portion of the shaft portion by an external force acting in the axial direction.
【００１４】請求項５に記載の発明は、前記エネルギ吸
収部材は、該接合部の全周に渡って配設されるように、
互いに連結される複数の板材を有し、該連結部分におい
て、前記板材には挿通孔が形成され、該挿通孔を介して
リベット止め又はネジ止めにより環状に連結され、前記
挿通孔は、エネルギ吸収部材の拡開方向を長手方向とす
る長孔であることを特徴としている。According to a fifth aspect of the present invention, the energy absorbing member is arranged over the entire circumference of the joint portion.
The plate member has a plurality of plate members connected to each other, and an insertion hole is formed in the plate member at the connection portion, and the plate members are connected to each other in an annular shape by rivet fixing or screwing through the insertion hole, and the insertion hole is an energy absorbing member. It is characterized in that it is a long hole whose longitudinal direction is the expanding direction of the member.
【００１５】請求項６に記載の発明は、前記エネルギ吸
収部材は、延性を有する材料から形成され、両車体部材
に各々固定されることにより跨って配設されたことを特
徴としている。According to a sixth aspect of the present invention, the energy absorbing member is formed of a ductile material, and is fixed to both vehicle body members so as to be disposed so as to straddle.
【００１６】請求項７に記載の発明は、前記エネルギ吸
収部材は、環状に一体に板状部材が連結されると共に、
一部に折畳み部分が形成され、該折畳み部分の互いに対
向する板部同士が連結手段にて連結され、該連結手段
は、該両車体部材に接合部から折れ曲がる方向に外力が
作用した時に、連結状態が解除されるように設定されて
いることを特徴としている。According to a seventh aspect of the present invention, the energy absorbing member is an annular plate member integrally connected to the energy absorbing member,
A folding part is formed in a part, and the plate parts facing each other of the folding part are connected by a connecting means, and the connecting means is connected when an external force acts on the both vehicle body members in a bending direction from the joint part. The feature is that the state is set to be released.
【００１７】[0017]
【作 用】かかる発明によれば、車体部材に対し、接合
部から折れ曲がる方向に外力が作用した時に、両車体部
材に跨るように配設されたエネルギ吸収部材がその外力
を受けて延び、この際にエネルギを吸収することとな
る。According to this invention, when an external force acts on the vehicle body member in the direction of bending from the joint, the energy absorbing member arranged so as to straddle both vehicle body members extends by receiving the external force. In that case, the energy is absorbed.
【００１８】このため、２つの車体部材の接合部が割れ
ても、このエネルギ吸収部材がエネルギを吸収し、連結
を維持するので、従来のように負荷荷重が急激に減少す
るようなことがなく、殆ど重量増加を招かずに有効にエ
ネルギを吸収できる。Therefore, even if the joint portion between the two vehicle body members is broken, this energy absorbing member absorbs energy and maintains the connection, so that the load load does not sharply decrease as in the conventional case. Energy can be effectively absorbed with almost no increase in weight.
【００１９】[0019]
【実施例】以下、この発明の実施例を図面に基づいて説
明する。Embodiments of the present invention will be described below with reference to the drawings.
【００２０】図１乃至図９は、この発明の第１実施例を
示すものである。なお、従来と同一乃至均等な部材は同
一符号を付して説明する。1 to 9 show a first embodiment of the present invention. It should be noted that the same or equivalent members as the conventional ones will be described with the same reference numerals.
【００２１】まず構成を説明すると、この第１実施例で
は、車体部材としての閉断面構造のアルミ軽合金製のフ
レーム部材１を、同じく車体部材としてのアルミ軽合金
製のジョイント部材２に嵌合結合して車体骨格構造の一
部を形成する様にしている。First, in the first embodiment, a frame member 1 made of an aluminum light alloy having a closed sectional structure as a vehicle body member is fitted to a joint member 2 made of an aluminum light alloy also as a vehicle body member. The parts are combined to form a part of the car body skeletal structure.
【００２２】このフレーム部材１とジョイント部材２と
の結合部３は、アーク溶接又は接着により接合されてい
る。このフレーム部材１は、一般に、押し出し成形によ
り形成されている。また、ジョイント部材２は、鋳造に
より形成されるのが、一般的である。The joint 3 between the frame member 1 and the joint member 2 is joined by arc welding or bonding. The frame member 1 is generally formed by extrusion molding. Moreover, the joint member 2 is generally formed by casting.
【００２３】これらの２つの部材１，２を接合する結合
部３の全周には、２枚の板材８，８を環状に連結して構
成され、易破断部と屈進部を有するエネルギ吸収部材７
がアーク溶接されている。このエネルギ吸収部材７の前
記板材８，８の連結部分５０は、一方の板材８の端部に
外側に折曲するフランジ部１０が形成されている。ま
た、他方の板材８の端部には、前記フランジ部１０を両
面側から把持する屈進部である折畳み部１２が形成され
て構成されている。The entire circumference of the joint portion 3 for joining these two members 1 and 2 is constituted by connecting two plate members 8 and 8 in an annular shape, and has an energy absorbing portion having an easily breakable portion and a bending portion. Member 7
Is arc welded. In the connecting portion 50 of the plate materials 8 of the energy absorbing member 7, a flange portion 10 that is bent outward is formed at an end of one plate material 8. Further, the other plate member 8 is formed with a folding portion 12 which is a bending portion for gripping the flange portion 10 from both sides thereof at the end portion thereof.
【００２４】この折畳み部１２には、前記フランジ部１
０の一側面１３に当接する先端部側片１４と、前記フラ
ンジ部１０の他側面１５に当接する基部側片１６とが形
成されている。The folded portion 12 has the flange portion 1
A front end side piece 14 that contacts one side surface 0 of the No. 0 and a base side piece 16 that contacts the other side surface 15 of the flange portion 10 are formed.
【００２５】そして、連結手段としてのリベット１７
（易破断部）にて、フランジ部１０が折畳み部１２で挟
持された状態で固定されている。Then, a rivet 17 as a connecting means
At the (easy breakable portion), the flange portion 10 is fixed while being sandwiched by the folding portions 12.
【００２６】このリベット１７は、主に図６及び図７に
示す様に軸部１８の途中でフランジ部１０の基部側一側
面１５に当接する位置に中間頭部１９が設けられてい
る。そして、この中間頭部１９と頭部２０との間には、
軸方向に作用する外力が作用した時に、軸部１８の中間
頭部１９より先端側の部分２２よりも破断し易いよう
に、この部分２２より径が小さい切断部２３が形成され
ている。As shown in FIGS. 6 and 7, the rivet 17 is provided with an intermediate head portion 19 at a position where the rivet 17 comes into contact with the base side surface 15 of the flange portion 10 in the middle of the shaft portion 18. Then, between the intermediate head 19 and the head 20,
A cutting portion 23 having a diameter smaller than that of the portion 22 is formed so that it is easier to break than the portion 22 of the shaft portion 18 on the tip side of the intermediate head portion 19 when an external force acting in the axial direction is applied.
【００２７】次に、かかる構成よりなる連結部構造の作
用について説明する。Next, the operation of the connecting portion structure having such a structure will be described.
【００２８】フレーム部材１とジョイント部材２に対
し、従来と同様に曲げモーメントＭが作用すると、両部
材１，２が接合部３から多少折れ曲がる。When a bending moment M is applied to the frame member 1 and the joint member 2 in the same manner as in the conventional case, both members 1 and 2 are slightly bent from the joint portion 3.
【００２９】すると、この接合部３の全周に設けられた
エネルギ吸収部材７を拡開させる方向に外力が作用す
る。この外力により、図４，図８等に示すように、リベ
ット１７の切断部２３が破断し、基部側片１６とフラン
ジ部１０の一側面１５とが離間する。この場合に多少の
エネルギが吸収される。Then, an external force acts in a direction of expanding the energy absorbing member 7 provided on the entire circumference of the joint portion 3. This external force breaks the cutting portion 23 of the rivet 17 and separates the base side piece 16 and the one side surface 15 of the flange portion 10 as shown in FIGS. In this case, some energy is absorbed.
【００３０】この状態では、中間頭部１９がフランジ部
１０の一側片１５に当接しており、軸部１８の残った部
分で先端部側片１４とフランジ部１０との連結状態が維
持される。In this state, the intermediate head portion 19 is in contact with the one side piece 15 of the flange portion 10, and the connecting portion between the tip side piece 14 and the flange portion 10 is maintained in the remaining portion of the shaft portion 18. It
【００３１】このように連結状態が維持されるため、両
部材１，２がさらに折れ曲がろうとすると、この場合の
エネルギがエネルギ吸収部材７で吸収されることとな
る。Since the connected state is maintained in this way, when the two members 1 and 2 try to bend further, the energy in this case is absorbed by the energy absorbing member 7.
【００３２】このため、２つの部材１，２の接合部３が
割れても、このエネルギ吸収部材７でエネルギが吸収さ
れるため、図９中、実線２５で示すように負荷荷重Ｆが
急激に落ち込むということもなく、一点鎖線２４に示す
様な特性を示し、緩やかに変形しながらエネルギの吸収
が行われる。Therefore, even if the joint portion 3 of the two members 1 and 2 is cracked, the energy is absorbed by the energy absorbing member 7, so that the load F is rapidly increased as indicated by the solid line 25 in FIG. It does not fall, and exhibits the characteristics shown by the alternate long and short dash line 24, and the energy is absorbed while gently deforming.
【００３３】したがって、接合される部材１，２の重量
を増加させることなく、変位に対する負荷荷重Ｆの減少
を安定させ、理想的なエネルギ吸収特性を得ることが出
来る。Therefore, it is possible to stabilize the reduction of the load F with respect to the displacement and to obtain an ideal energy absorption characteristic without increasing the weight of the members 1 and 2 to be joined.
【００３４】この第１実施例の車体部材の連結部構造で
は、リベット１７の切断部２３の外径を調整することに
より、破断荷重のコントロールを容易に行なうことが出
来る。In the vehicle body member connecting portion structure of the first embodiment, the breaking load can be easily controlled by adjusting the outer diameter of the cutting portion 23 of the rivet 17.
【００３５】図１０及び図１１は、この発明の第２実施
例を示すものである。前記第１実施例と同一乃至均等な
部材については、同一符号を付して説明する。10 and 11 show a second embodiment of the present invention. The same or equivalent members as those in the first embodiment will be described with the same reference numerals.
【００３６】この第２実施例の車体部材の連結部構造で
は、２つの部材１，２を接合する結合部３の周囲に、４
枚の板材２６，…を環状に連結して構成されるエネルギ
吸収部材２５が設けられている。このエネルギ吸収部材
２５の前記板材２６，…の連結部分５０の構造は、第１
実施例と同様である。In the vehicle body member connecting portion structure of the second embodiment, four members are provided around the joint portion 3 for joining the two members 1 and 2.
An energy absorbing member 25 is provided which is formed by annularly connecting the plate members 26, ... The structure of the connecting portion 50 of the plate members 26 of the energy absorbing member 25 is the first
It is similar to the embodiment.
【００３７】かかる構造において、上記と同様な外力が
作用すると、図１１に示す様に、４箇所の連結部分５０
が延びることにより、よりエネルギ吸収力が向上すると
共に、色々な方向からの外力に対するエネルギを有効に
吸収できる。In such a structure, when an external force similar to that described above acts, as shown in FIG. 11, four connecting portions 50 are formed.
By extending, the energy absorption power is further improved, and the energy with respect to external force from various directions can be effectively absorbed.
【００３８】図１２は、本発明の第３実施例を示すもの
である。前記第１実施例と同一乃至均等な部材について
は、同一符号を付して説明する。FIG. 12 shows a third embodiment of the present invention. The same or equivalent members as those in the first embodiment will be described with the same reference numerals.
【００３９】この実施例では、ジョイント部材２７がフ
レーム部材１の断面形状より大きく、接合部３０におい
て急激に断面変化している。そして、この接合部３０の
全周に渡ってエネルギ吸収部材３１が配設されている。In this embodiment, the joint member 27 is larger than the cross-sectional shape of the frame member 1 and the cross-section changes abruptly at the joint portion 30. An energy absorbing member 31 is arranged around the entire circumference of the joint 30.
【００４０】このエネルギ吸収部材３１は、２枚の板材
２９，３０が環状に連結されて構成されている。この連
結部分５０は、第１実施例と同様である。The energy absorbing member 31 is formed by connecting two plate members 29 and 30 in an annular shape. This connecting portion 50 is similar to that of the first embodiment.
【００４１】このように急激に断面変化しているものあ
っては、接合部３０に応力が集中して割れが生じ易い
が、エネルギ吸収部材３１を設けることにより、この部
材３１で接合部３０におけるエネルギを有効に吸収する
ことができる。In such a case where the cross-section changes abruptly, stress is likely to be concentrated in the joint portion 30 and cracks easily occur. However, by providing the energy absorbing member 31, the member 31 in the joint portion 30 is provided. Energy can be effectively absorbed.
【００４２】図１３及び図１４は、この発明の第４実施
例を示すものである。13 and 14 show a fourth embodiment of the present invention.
【００４３】上記第１実施例では、連結手段がリベット
１７であったが、この第４実施例では、スポット溶接に
て構成されている。In the first embodiment described above, the connecting means was the rivet 17, but in the fourth embodiment, spot welding is used.
【００４４】すなわち、フランジ部１０の一側面１３と
折畳み部１２の先端部側片１４、フランジ部１０の他側
面１５と折畳み部１２の基部側片１６がスポット溶接３
４，３５されて固定されることにより、エネルギ吸収部
材３６が構成されている。That is, one side surface 13 of the flange portion 10 and the tip side piece 14 of the folded portion 12, the other side surface 15 of the flange portion 10 and the base side piece 16 of the folded portion 12 are spot welded.
The energy absorbing member 36 is configured by being fixed by 4, 35 and.
【００４５】かかる構成によれば、外力が作用した場合
に、前記スポット溶接３４，３５の内、基部側片１６と
フランジ部１０の一側面１５とを連結していたスポット
溶接３５には剥離方向の外力が作用するため、このスポ
ット溶接３５が剥離し、基部側片１６とフランジ部１０
とが離間させられる。しかし、先端部側片１４とフラン
ジ部１０とを連結しているスポット溶接３４には、剪断
方向に力が作用することから、その連結を維持する。According to this structure, when an external force is applied, the spot welding 35 connecting the base side piece 16 and the one side surface 15 of the flange portion 10 among the spot weldings 34 and 35 has a peeling direction. The spot welding 35 peels off due to the external force of the base side piece 16 and the flange portion 10.
And are separated. However, since a force acts in the shearing direction on the spot welding 34 connecting the tip end side piece 14 and the flange portion 10, the connection is maintained.
【００４６】従って、このようにしても、エネルギ吸収
部材３６により、有効にエネルギを吸収することができ
る。Therefore, even in this case, the energy absorbing member 36 can effectively absorb the energy.
【００４７】このようにスポット溶接３４，３５により
固定するようにしているため、上記実施例のリベット１
７等と比較して、作業が良好である。Since the spot welds 34 and 35 are used for fixing in this manner, the rivet 1 of the above embodiment is used.
Work is better than 7th grade.
【００４８】図１５及び図１６は、この発明の第５実施
例を示すものである。15 and 16 show a fifth embodiment of the present invention.
【００４９】この第５実施例のエネルギ吸収部材３９
は、２枚の板材３７，３８を環状に連結して構成されて
いる。Energy absorbing member 39 of the fifth embodiment
Is formed by connecting two plate members 37 and 38 in an annular shape.
【００５０】この２つの部材１，２の接合部３の側面位
置で、前記２つの板材３７，３８が連結される連結部分
４２には、挿通孔４０，…が形成されている。 この挿
通孔４０，…は、エネルギ吸収部材３９の拡開方向であ
る図１５中上下方向を長手方向とする長孔形状を呈して
いる。Insertion holes 40, ... Are formed in a connecting portion 42 where the two plate members 37, 38 are connected at a side surface position of the joint portion 3 of the two members 1, 2. The insertion holes 40, ... Have a long hole shape whose longitudinal direction is the vertical direction in FIG. 15, which is the expanding direction of the energy absorbing member 39.
【００５１】そして、この挿通孔４０，…に、リベット
４１，…止めを施すことにより、前記２つの板材３７，
３８が環状に連結されている。Then, rivets 41, ... Are fixed to the insertion holes 40 ,.
38 are connected in a ring shape.
【００５２】このように構成された第５実施例の車体部
材の連結部構造では、２つの部材１，２に外力が加わる
と、リベット４１，…が、挿通孔４０，…を拡開しなが
ら移動する。In the structure of the connecting portion of the vehicle body member of the fifth embodiment having such a structure, when an external force is applied to the two members 1 and 2, the rivets 41, ... Expand the insertion holes 40 ,. Moving.
【００５３】このため、リベット４１，…が、挿通孔４
０，…を拡開しながら長孔方向に移動する際の抵抗力に
よって、エネルギを吸収すると共に、このリベット４
１，…と挿通孔４０，…との連結は、維持され、更に延
びながらエネルギを吸収するので、負荷荷重Ｆが急激に
落ち込むことがない。Therefore, the rivets 41, ...
The energy is absorbed by the resistance force when moving 0, ...
The connection between 1, ... And the insertion holes 40, .. is maintained, and since the energy is absorbed while being further extended, the load F does not drop suddenly.
【００５４】この実施例では、リベット４１の軸部の径
と、挿通孔４０の大きさとを調整することにより、リベ
ット４１移動時の抵抗力を変え、抵抗力のコントロール
を容易に行なうことが出来る。In this embodiment, by adjusting the diameter of the shaft portion of the rivet 41 and the size of the insertion hole 40, the resistance force when the rivet 41 is moved can be changed and the resistance force can be easily controlled. .
【００５５】また、この第５実施例の連結部分４２に
は、挿通孔４０，…が形成され、リベット４１止めを行
なうことにより、板材３７，３８が環状に連結され、エ
ネルギ吸収部材３９を構成するようにしているが、特に
これに限らず、例えば、リベット４１止めに替えて、ネ
ジ止め等を施すことにより、複数の板材３７，３８が連
結される様にしても良いことは当然である。Further, insertion holes 40, ... Are formed in the connecting portion 42 of the fifth embodiment, and the plate members 37, 38 are connected in an annular shape by fastening the rivet 41, thus forming the energy absorbing member 39. However, the present invention is not limited to this, and it is of course possible to connect the plurality of plate members 37 and 38 by screwing instead of the rivet 41 fixing. .
【００５６】他の構成および作用については、前記第１
実施例と略同様なので、その説明を省略する。With respect to other configurations and operations, the above first
The description is omitted because it is substantially the same as the embodiment.
【００５７】図１７乃至図１９は、この発明の第６実施
例を示すものである。17 to 19 show a sixth embodiment of the present invention.
【００５８】この第６実施例の車体部材の連結部構造で
は、延性を有する材料からなるエネルギ吸収部材４３，
４３が２つの部材１，２の上面部と下面部にそれぞれア
ーク溶接により固定されている。In the vehicle body member connecting portion structure of the sixth embodiment, the energy absorbing member 43, which is made of a ductile material,
43 are fixed to the upper and lower surfaces of the two members 1 and 2 by arc welding.
【００５９】図１８に示す様な曲げモーメントＭが作用
した場合に、この結合部３に図１９に示すように割れが
生じた後も、エネルギ吸収部材４３が延びながらエネル
ギを吸収し、２つの部材１，２間の接合を維持し、有効
にエネルギを吸収できる。When the bending moment M as shown in FIG. 18 acts, even after the joint 3 is cracked as shown in FIG. It is possible to maintain the joint between the members 1 and 2 and effectively absorb energy.
【００６０】他の構成および作用については、前記第１
実施例と略同様なので、その説明を省略する。With respect to other configurations and operations, the above first
The description is omitted because it is substantially the same as the embodiment.
【００６１】図２０及び図２１は、この発明の第７実施
例を示すものである。20 and 21 show a seventh embodiment of the present invention.
【００６２】この第７実施例のエネルギ吸収部材４７
は、環状の一枚の板状部材４４から構成され、４箇所に
折畳み部分４５，…が形成されている。The energy absorbing member 47 of the seventh embodiment.
Is composed of a single plate-shaped member 44 having an annular shape, and folding portions 45, ... Are formed at four positions.
【００６３】そして、この各折畳み部分４５，…の互い
に対向する板部４６，４６をスポット溶接４８，…によ
り連結するようにしている。The plate portions 46, 46 of the folding portions 45, ..., Which face each other, are connected by spot welding 48 ,.
【００６４】折畳み部分４５に対して、エネルギ吸収部
材４７の拡開方向に外力が加わると、前記スポット溶接
４８による板部４６，４６間の連結は解除され、図２１
に示すように、板状部材４４の折畳み部４５…が延びな
がらエネルギを吸収することとなる。When an external force is applied to the folded portion 45 in the expanding direction of the energy absorbing member 47, the connection between the plate portions 46 and 46 by the spot welding 48 is released, and FIG.
As shown in, the folding portions 45 of the plate-shaped member 44 absorb energy while extending.
【００６５】他の構成および作用については、前記第１
実施例と略同様なので、その説明を省略する。With respect to other configurations and operations, the above first
The description is omitted because it is substantially the same as the embodiment.
【００６６】なお、ここではエネルギ吸収部材４７の折
畳み部４５に、スポット溶接４８を施すことにより、板
部４６，４６間を連結するようにしているが、特にこれ
に限らず、リベットで連結するようにしても良い。Although the folded portion 45 of the energy absorbing member 47 is spot welded 48 to connect the plate portions 46, 46 to each other, the invention is not limited to this, and the rivets are used for connection. You may do it.
【００６７】[0067]
【発明の効果】以上説明してきたように、この発明によ
れば、従来のように、負荷荷重が急激に落ち込むことな
く、エネルギ吸収部材が延びて変形しながらエネルキの
吸収が行われるため、連結される車体部材の重量を増加
させることなく、負荷荷重の急激な減少を抑えて、理想
的に近いエネルギ吸収特性を得ることができる、という
実用上有益な効果を発揮する。As described above, according to the present invention, unlike the prior art, the energy absorbing member is extended and deformed to absorb the energy without a sudden drop in the applied load. It is possible to obtain a practically useful effect that an abrupt decrease in the applied load can be suppressed and an energy absorption characteristic close to ideal can be obtained without increasing the weight of the vehicle body member.
【図１】この発明の第１実施例の車体部材の連結部構造
を示す斜視図である。FIG. 1 is a perspective view showing a structure of a connecting portion of a vehicle body member according to a first embodiment of the present invention.
【図２】第１実施例の車体部材の連結部構造を示し、エ
ネルギ吸収部材の側面図である。FIG. 2 is a side view of the energy absorbing member showing the structure of the connecting portion of the vehicle body member of the first embodiment.
【図３】第１実施例の車体部材の連結部構造を示し、図
１のＡ−Ａ断面図である。FIG. 3 is a sectional view taken along the line AA in FIG. 1, showing the structure of the connecting portion of the vehicle body member of the first embodiment.
【図４】第１実施例の車体部材の連結部構造を示し、図
５のＢ−Ｂ断面図である。FIG. 4 is a cross-sectional view taken along the line BB of FIG. 5, showing the structure of the connecting portion of the vehicle body member of the first embodiment.
【図５】第１実施例の車体部材の連結部構造を示し、外
力が連結部分に作用した様子を示すエネルギ吸収部材の
側面図である。FIG. 5 is a side view of the energy absorbing member showing the structure of the connecting portion of the vehicle body member of the first embodiment and showing how an external force acts on the connecting portion.
【図６】第１実施例のリベットを示す正面図である。FIG. 6 is a front view showing the rivet of the first embodiment.
【図７】第１実施例の車体部材の連結部構造を示し、板
材の連結部分を示す要部拡大断面図である。FIG. 7 is an enlarged sectional view of an essential part showing a connecting portion structure of a vehicle body member of the first embodiment and showing a connecting portion of a plate member.
【図８】第１実施例の車体部材の連結部構造を示し、外
力が作用した板材の連結部分を示す要部拡大断面図であ
る。FIG. 8 is an enlarged sectional view of an essential part showing a connecting portion structure of a vehicle body member of the first embodiment and showing a connecting portion of a plate member to which an external force is applied.
【図９】第１実施例のエネルギ吸収特性を従来のエネル
ギ吸収特性と比較したグラフ図である。FIG. 9 is a graph comparing the energy absorption characteristics of the first embodiment with the conventional energy absorption characteristics.
【図１０】この発明の第２実施例の車体部材の連結部構
造を示し、図１のＡ−Ａ断面図に対応する箇所の断面図
である。FIG. 10 is a sectional view showing a structure of a connecting portion of a vehicle body member according to a second embodiment of the invention and showing a portion corresponding to the AA sectional view of FIG. 1.
【図１１】第２実施例の車体部材の連結部構造を示し、
外力が作用した様子を示す図１のＡ−Ａ断面図に対応す
る箇所の断面図である。FIG. 11 shows a structure of a connecting portion of a vehicle body member according to a second embodiment,
It is sectional drawing of a part corresponding to the AA sectional view of FIG. 1 which shows a mode that the external force acted.
【図１２】この発明の第３実施例の車体部材の連結部構
造を示す斜視図である。FIG. 12 is a perspective view showing a structure of a connecting portion of a vehicle body member according to a third embodiment of the present invention.
【図１３】この発明の第４実施例の車体部材の連結部構
造を示し、板材の連結部分を示す要部拡大断面図であ
る。FIG. 13 is an enlarged sectional view of an essential part showing a connecting portion structure of a vehicle body member of a fourth embodiment of the invention and showing a connecting portion of a plate material.
【図１４】第４実施例の車体部材の連結部構造を示し、
外力が作用した板材の連結部分を示す要部拡大断面図で
ある。FIG. 14 shows the structure of the connecting portion of the vehicle body member of the fourth embodiment,
It is a principal part expanded sectional view which shows the connection part of the board | plate material to which the external force acted.
【図１５】この発明の第５実施例の車体部材の連結部構
造を示す斜視図である。FIG. 15 is a perspective view showing the structure of the connecting portion of the vehicle body member according to the fifth embodiment of the present invention.
【図１６】第５実施例の車体部材の連結部構造を示し、
図１５のＣ−Ｃ断面図である。FIG. 16 shows the structure of the connecting portion of the vehicle body member of the fifth embodiment,
It is CC sectional drawing of FIG.
【図１７】この発明の第６実施例の車体部材の連結部構
造を示す斜視図である。FIG. 17 is a perspective view showing a structure of a connecting portion of a vehicle body member according to a sixth embodiment of the present invention.
【図１８】第６実施例の車体部材の連結部構造を示し、
２つの部材の連結部分にエネルギ吸収部材を配設した様
子を示す側面図である。FIG. 18 shows the structure of the connecting portion of the vehicle body member of the sixth embodiment,
It is a side view showing a mode that an energy absorption member is arranged at a connecting portion of two members.
【図１９】第６実施例の車体部材の連結部構造を示し、
２つの部材の連結部分に外力が作用した様子を示す側面
図である。FIG. 19 shows the structure of the connecting portion of the vehicle body member of the sixth embodiment,
It is a side view which shows a mode that the external force acted on the connection part of two members.
【図２０】この発明の第７実施例の車体部材の連結部構
造を示し、前記第１実施例の図３に対応する部分の断面
図である。20 is a sectional view showing a structure of a connecting portion of a vehicle body member according to a seventh embodiment of the present invention and showing a portion corresponding to FIG. 3 of the first embodiment. FIG.
【図２１】第７実施例の車体部材の連結部構造を示し、
前記第１実施例の図８に対応する部分の部分拡大断面図
である。FIG. 21 shows the structure of the connecting portion of the vehicle body member of the seventh embodiment,
FIG. 9 is a partially enlarged sectional view of a portion corresponding to FIG. 8 of the first embodiment.
【図２２】従来例の車体部材の連結部構造を示す斜視図
である。FIG. 22 is a perspective view showing a structure of a connecting portion of a conventional vehicle body member.
【図２３】従来例の車体部材の連結部構造を示し、外力
が２つの部材の結合部に作用した様子を示す側面図であ
る。FIG. 23 is a side view showing the structure of the connecting portion of the vehicle body member of the conventional example, showing how an external force acts on the joint portion of the two members.
【図２４】従来例の車体部材の連結部構造におけるエネ
ルギ吸収特性を実線で示し、一点鎖線でしめされる板厚
を増加させた場合と比較したグラフ図である。FIG. 24 is a graph showing the energy absorption characteristics of the connecting portion structure of the vehicle body member of the conventional example by a solid line and comparing with the case where the plate thickness indicated by the alternate long and short dash line is increased.
７ エネルギ吸収部材 ８ 板材 10 フランジ部 12 折畳み部 13 一側面 14 先端側片 15 他側面 16 基部側片 17 リベット（連結手段） 50 連結部分 7 Energy absorbing member 8 Plate material 10 Flange portion 12 Folding portion 13 One side surface 14 Tip side piece 15 Other side surface 16 Base side piece 17 Rivet (coupling means) 50 Coupling portion
【手続補正書】[Procedure amendment]
【提出日】平成５年３月２日[Submission date] March 2, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【書類名】 明細書[Document name] Statement
【発明の名称】 車体部材の連結部構造[Title of the Invention] Structure for connecting parts of vehicle body members
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】この発明は、主に車両の骨格構造
を形成するフレーム部材等の連結部におけるエネルギ吸
収効率を向上させた車体部材の連結部構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body member connecting portion structure having improved energy absorbing efficiency mainly at a connecting portion such as a frame member forming a frame structure of a vehicle.
【０００２】[0002]
【従来の技術】従来からこの種のものとしては、例えば
図２２乃至図２４に示すようなものがある（米国特許第
４６１８１６３号公報等参照）。2. Description of the Related Art Conventionally, as this type, for example, there is one shown in FIGS. 22 to 24 (see US Pat. No. 4,618,163).
【０００３】このようなものでは、閉断面構造のアルミ
軽合金製のフレーム部材１を同じくアルミ軽合金製のジ
ョイント部材２に嵌合結合して車体骨格構造の一部を形
成する様にしている。In such a structure, a frame member 1 made of an aluminum light alloy having a closed cross-section structure is fitted and coupled to a joint member 2 made of an aluminum light alloy to form a part of a vehicle body skeletal structure. .
【０００４】このフレーム部材１とジョイント部材２と
が互いに嵌合された連結部３は、アーク溶接又は接着に
より接合されている。このフレーム部材１は、一般に、
押し出し成形により形成されている。また、ジョイント
部材２は、鋳造により形成されるのが、一般的である。The connecting portion 3 in which the frame member 1 and the joint member 2 are fitted to each other is joined by arc welding or bonding. This frame member 1 is generally
It is formed by extrusion molding. Moreover, the joint member 2 is generally formed by casting.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の構造では、押し出し材であるフレーム部材１
と、鋳造材であるジョイント部材２とをアーク溶接また
は、接着により接合しているため、許容範囲を越える外
力が加わり、連結部３に曲げモーメントＭが生じた場
合、図２３中二点鎖線に示すように、塑性変形を起こ
し、フレーム部材１又はジョイント部材２の連結部３近
傍に割れが発生する。However, in such a conventional structure, the frame member 1 which is an extruded member is used.
23 and the joint member 2 which is a cast material are joined by arc welding or adhesion, when an external force exceeding the allowable range is applied and a bending moment M is generated in the connecting portion 3, a two-dot chain line in FIG. As shown, plastic deformation occurs and cracks occur in the vicinity of the connecting portion 3 of the frame member 1 or the joint member 2.
【０００６】この場合の連結部３における荷重に対する
変位の関係を示すと図２４に示すようなグラフ図とな
る。すなわち、図中実線で示すように、変位量Ｓの増加
と共に荷重Ｆも減少し、割れが発生した位置４を越える
と、負荷荷重Ｆが急激に減少してしまう。従って、図２
４中一点鎖線で示す理想的な特性曲線６と比較して、斜
線部Ｂの面積分、エネルギー吸収量が減少する。してみ
れば、負荷荷重Ｆが急激に減少しないほうが、エネルギ
ーを有効に吸収することが出来る。FIG. 24 is a graph showing the relationship of the displacement of the connecting portion 3 with respect to the load in this case. That is, as indicated by the solid line in the figure, the load F decreases as the displacement amount S increases, and when the position 4 where the crack occurs is exceeded, the load F decreases sharply. Therefore, FIG.
4, the energy absorption amount is reduced by the area of the shaded portion B as compared with the ideal characteristic curve 6 indicated by the alternate long and short dash line. Therefore, if the applied load F does not decrease sharply, the energy can be effectively absorbed.
【０００７】そこで、特性曲線６と同じエネルギー吸収
量を同一材料で得ようとすると、従来の構造では、特性
曲線７となるよう、つまり、斜線部Ａの面積が斜線部Ｂ
の面積と等しくなるように、フレーム部材１及びジョイ
ント部材２の板厚を設定する必要がある。Therefore, if the same energy absorption amount as the characteristic curve 6 is to be obtained with the same material, the characteristic curve 7 is obtained in the conventional structure, that is, the area of the shaded portion A is the shaded portion B.
It is necessary to set the plate thicknesses of the frame member 1 and the joint member 2 so as to be equal to the area.
【０００８】しかし、このように板厚を増加させても、
割れが発生することに変わりなく、フレーム部材１及び
ジョイント部材２の板厚の増加により、車両重量が増加
するという問題もあった。However, even if the plate thickness is increased in this way,
There is also a problem that the vehicle weight increases due to the increase in the plate thicknesses of the frame member 1 and the joint member 2 as well as the occurrence of cracks.
【０００９】この発明は、連結される車体部材の重量を
増加させることなく、負荷荷重の急激な減少を抑えて、
理想的に近いエネルギ吸収特性を得ることができる車体
部材の連結部構造を提供することを課題としている。According to the present invention, it is possible to suppress a sudden decrease in the applied load without increasing the weight of the body members to be connected,
An object of the present invention is to provide a vehicle body member connecting portion structure capable of obtaining energy absorption characteristics that are close to ideal.
【００１０】[0010]
【課題を解決するための手段】この発明は、かかる課題
に着目してなされたもので、請求項１に記載の発明は、
フレーム部材とジョイント部材の２つの車体部材の端部
を突合わせて接合すると共に、該接合部に両車体部材に
跨るように易破断部と屈進部とからなるエネルギ吸収部
材を設け、該両車体部材に接合部から折れ曲がる方向に
外力が作用した時に、前記エネルギ吸収部材が延断する
ことによりエネルギーを吸収することを特徴とする車体
部材の連結部構造。The present invention has been made by paying attention to such a problem, and the invention according to claim 1 is
The end portions of the two body members of the frame member and the joint member are abutted and joined to each other, and an energy absorbing member including an easily breakable portion and a receding portion is provided at the joint portion so as to straddle both vehicle member members. A structure for connecting a vehicle body member, characterized in that, when an external force is applied to the vehicle body member in a direction in which the vehicle body member is bent, the energy absorbing member extends and cuts to absorb energy.
【００１１】請求項２に記載の発明は、前記エネルギ吸
収部材は、該接合部の全周に渡って配設されるように、
互いに連結される複数の板材を有し、一の板材の端部に
外側に折曲するフランジ部が形成され、他の板材の端部
に前記フランジ部を両面側から把持する折畳み部が形成
され、該折畳み部は、前記フランジ部の一側面に当接す
る先端部側片と、前記フランジ部の他側面に当接する基
部側片とを形成すると共に、前記フランジ部と折畳み部
とを連結手段にて連結し、該連結手段は、該両車体部材
に接合部から折れ曲がる方向に外力が作用した時に、前
記基部側片とフランジ部とが離間させられると共に、前
記先端部側片とフランジ部との連結状態を維持すること
を特徴としている。According to a second aspect of the present invention, the energy absorbing member is arranged over the entire circumference of the joint portion.
A plurality of plate members connected to each other are formed, and a flange portion that is bent outward is formed at an end portion of one plate member, and a folded portion that holds the flange portion from both sides is formed at an end portion of another plate member. The folding portion forms a tip side piece that abuts one side surface of the flange portion and a base side piece that abuts the other side surface of the flange portion, and uses the flange portion and the folding portion as a connecting means. The connecting means separates the base side piece and the flange portion from each other when an external force acts on the both vehicle body members in a bending direction from the joint portion, and the front side piece and the flange portion are separated from each other. It is characterized by maintaining the connected state.
【００１２】請求項３に記載の発明は、前記連結手段
は、前記フランジ部の一側面と、前記折畳み部の先端部
側片とを接合すると共に、前記フランジ部の他側面と前
記折畳み部の基部側片とを接合するスポット溶接である
ことを特徴としている。According to a third aspect of the present invention, the connecting means joins one side surface of the flange portion and a tip side piece of the folding portion, and the other side surface of the flange portion and the folding portion. It is characterized by spot welding that joins the base side piece.
【００１３】請求項４に記載の発明は、前記連結手段
は、リベットからなり、該リベットは、軸部の途中でフ
ランジ部の基部側一側面に当接する位置に中間頭部を設
け、該中間頭部と頭部との間に軸方向に作用する外力に
よって、軸部の中間頭部と先端部との間よりも破断し易
い切断部を設けたことを特徴としている。According to a fourth aspect of the present invention, the connecting means comprises a rivet, and the rivet is provided with an intermediate head portion at a position in contact with one side surface on the base side of the flange portion in the middle of the shaft portion. It is characterized in that a cutting portion is provided between the head portion and the head portion which is more easily broken than between the intermediate head portion and the tip portion of the shaft portion by an external force acting in the axial direction.
【００１４】請求項５に記載の発明は、前記エネルギ吸
収部材は、該接合部の全周に渡って配設されるように、
互いに連結される複数の板材を有し、該連結部分におい
て、前記板材には挿通孔が形成され、該挿通孔を介して
リベット止め又はネジ止めにより環状に連結され、前記
挿通孔は、エネルギ吸収部材の拡開方向を長手方向とす
る長孔であることを特徴としている。According to a fifth aspect of the present invention, the energy absorbing member is arranged over the entire circumference of the joint portion.
The plate member has a plurality of plate members connected to each other, and an insertion hole is formed in the plate member at the connection portion, and the plate members are connected to each other in an annular shape by rivet fixing or screwing through the insertion hole, and the insertion hole is an energy absorbing member. It is characterized in that it is a long hole whose longitudinal direction is the expanding direction of the member.
【００１５】請求項６に記載の発明は、前記エネルギ吸
収部材は、延性を有する材料から形成され、両車体部材
に各々固定されることにより跨って配設されたことを特
徴としている。According to a sixth aspect of the present invention, the energy absorbing member is formed of a ductile material, and is fixed to both vehicle body members so as to be disposed so as to straddle.
【００１６】請求項７に記載の発明は、前記エネルギ吸
収部材は、環状に一体に板状部材が連結されると共に、
一部に折畳み部分が形成され、該折畳み部分の互いに対
向する板部同士が連結手段にて連結され、該連結手段
は、該両車体部材に接合部から折れ曲がる方向に外力が
作用した時に、連結状態が解除されるように設定されて
いることを特徴としている。According to a seventh aspect of the present invention, the energy absorbing member is an annular plate member integrally connected to the energy absorbing member,
A folding part is formed in a part, and the plate parts facing each other of the folding part are connected by a connecting means, and the connecting means is connected when an external force acts on the both vehicle body members in a bending direction from the joint part. The feature is that the state is set to be released.
【００１７】[0017]
【作 用】かかる発明によれば、車体部材に対し、接合
部から折れ曲がる方向に外力が作用した時に、両車体部
材に跨るように配設されたエネルギ吸収部材がその外力
を受けて延び、この際にエネルギを吸収することとな
る。According to this invention, when an external force acts on the vehicle body member in the direction of bending from the joint, the energy absorbing member arranged so as to straddle both vehicle body members extends by receiving the external force. In that case, the energy is absorbed.
【００１８】このため、２つの車体部材の接合部が割れ
ても、このエネルギ吸収部材がエネルギを吸収し、連結
を維持するので、従来のように負荷荷重が急激に減少す
るようなことがなく、殆ど重量増加を招かずに有効にエ
ネルギを吸収できる。Therefore, even if the joint portion between the two vehicle body members is broken, this energy absorbing member absorbs energy and maintains the connection, so that the load load does not sharply decrease as in the conventional case. Energy can be effectively absorbed with almost no increase in weight.
【００１９】[0019]
【実施例】以下、この発明の実施例を図面に基づいて説
明する。Embodiments of the present invention will be described below with reference to the drawings.
【００２０】図１乃至図９は、この発明の第１実施例を
示すものである。なお、従来と同一乃至均等な部材は同
一符号を付して説明する。1 to 9 show a first embodiment of the present invention. It should be noted that the same or equivalent members as the conventional ones will be described with the same reference numerals.
【００２１】まず構成を説明すると、この第１実施例で
は、車体部材としての閉断面構造のアルミ軽合金製のフ
レーム部材１を、同じく車体部材としてのアルミ軽合金
製のジョイント部材２に嵌合結合して車体骨格構造の一
部を形成する様にしている。First, in the first embodiment, a frame member 1 made of an aluminum light alloy having a closed sectional structure as a vehicle body member is fitted to a joint member 2 made of an aluminum light alloy also as a vehicle body member. The parts are combined to form a part of the car body skeletal structure.
【００２２】このフレーム部材１とジョイント部材２と
の結合部３は、アーク溶接又は接着により接合されてい
る。このフレーム部材１は、一般に、押し出し成形によ
り形成されている。また、ジョイント部材２は、鋳造に
より形成されるのが、一般的である。The joint 3 between the frame member 1 and the joint member 2 is joined by arc welding or bonding. The frame member 1 is generally formed by extrusion molding. Moreover, the joint member 2 is generally formed by casting.
【００２３】これらの２つの部材１，２を接合する結合
部３の全周には、２枚の板材８，８を環状に連結して構
成され、易破断部と屈進部を有するエネルギ吸収部材７
がアーク溶接されている。このエネルギ吸収部材７の前
記板材８，８の連結部分５０は、一方の板材８の端部に
外側に折曲するフランジ部１０が形成されている。ま
た、他方の板材８の端部には、前記フランジ部１０を両
面側から把持する屈進部である折畳み部１２が形成され
て構成されている。The entire circumference of the joint portion 3 for joining these two members 1 and 2 is constituted by connecting two plate members 8 and 8 in an annular shape, and has an energy absorbing portion having an easily breakable portion and a bending portion. Member 7
Is arc welded. In the connecting portion 50 of the plate materials 8 of the energy absorbing member 7, a flange portion 10 that is bent outward is formed at an end of one plate material 8. Further, the other plate member 8 is formed with a folding portion 12 which is a bending portion for gripping the flange portion 10 from both sides thereof at the end portion thereof.
【００２４】この折畳み部１２には、前記フランジ部１
０の一側面１３に当接する先端部側片１４と、前記フラ
ンジ部１０の他側面１５に当接する基部側片１６とが形
成されている。The folded portion 12 has the flange portion 1
A front end side piece 14 that contacts one side surface 0 of the No. 0 and a base side piece 16 that contacts the other side surface 15 of the flange portion 10 are formed.
【００２５】そして、連結手段としてのリベット１７
（易破断部）にて、フランジ部１０が折畳み部１２で挟
持された状態で固定されている。Then, a rivet 17 as a connecting means
At the (easy breakable portion), the flange portion 10 is fixed while being sandwiched by the folding portions 12.
【００２６】このリベット１７は、主に図６及び図７に
示す様に軸部１８の途中でフランジ部１０の基部側一側
面１５に当接する位置に中間頭部１９が設けられてい
る。そして、この中間頭部１９と頭部２０との間には、
軸方向に作用する外力が作用した時に、軸部１８の中間
頭部１９より先端側の部分２２よりも破断し易いよう
に、この部分２２より径が小さい切断部２３が形成され
ている。As shown in FIGS. 6 and 7, the rivet 17 is provided with an intermediate head portion 19 at a position where the rivet 17 comes into contact with the base side surface 15 of the flange portion 10 in the middle of the shaft portion 18. Then, between the intermediate head 19 and the head 20,
A cutting portion 23 having a diameter smaller than that of the portion 22 is formed so that it is easier to break than the portion 22 of the shaft portion 18 on the tip side of the intermediate head portion 19 when an external force acting in the axial direction is applied.
【００２７】次に、かかる構成よりなる連結部構造の作
用について説明する。Next, the operation of the connecting portion structure having such a structure will be described.
【００２８】フレーム部材１とジョイント部材２に対
し、従来と同様に曲げモーメントＭが作用すると、両部
材１，２が接合部３から多少折れ曲がる。When a bending moment M is applied to the frame member 1 and the joint member 2 in the same manner as in the conventional case, both members 1 and 2 are slightly bent from the joint portion 3.
【００２９】すると、この接合部３の全周に設けられた
エネルギ吸収部材７を拡開させる方向に外力が作用す
る。この外力により、図４，図８等に示すように、リベ
ット１７の切断部２３が破断し、基部側片１６とフラン
ジ部１０の一側面１５とが離間する。この場合に多少の
エネルギが吸収される。Then, an external force acts in a direction of expanding the energy absorbing member 7 provided on the entire circumference of the joint portion 3. This external force breaks the cutting portion 23 of the rivet 17 and separates the base side piece 16 and the one side surface 15 of the flange portion 10 as shown in FIGS. In this case, some energy is absorbed.
【００３０】この状態では、中間頭部１９がフランジ部
１０の一側片１５に当接しており、軸部１８の残った部
分で先端部側片１４とフランジ部１０との連結状態が維
持される。In this state, the intermediate head portion 19 is in contact with the one side piece 15 of the flange portion 10, and the connecting portion between the tip side piece 14 and the flange portion 10 is maintained in the remaining portion of the shaft portion 18. It
【００３１】このように連結状態が維持されるため、両
部材１，２がさらに折れ曲がろうとすると、この場合の
エネルギがエネルギ吸収部材７で吸収されることとな
る。Since the connected state is maintained in this way, when the two members 1 and 2 try to bend further, the energy in this case is absorbed by the energy absorbing member 7.
【００３２】このため、２つの部材１，２の接合部３が
割れても、このエネルギ吸収部材７でエネルギが吸収さ
れるため、図９中、実線２５で示すように負荷荷重Ｆが
急激に落ち込むということもなく、一点鎖線２４に示す
様な特性を示し、緩やかに変形しながらエネルギの吸収
が行われる。Therefore, even if the joint portion 3 of the two members 1 and 2 is cracked, the energy is absorbed by the energy absorbing member 7, so that the load F is rapidly increased as indicated by the solid line 25 in FIG. It does not fall, and exhibits the characteristics shown by the alternate long and short dash line 24, and the energy is absorbed while gently deforming.
【００３３】したがって、接合される部材１，２の重量
を増加させることなく、変位に対する負荷荷重Ｆの減少
を安定させ、理想的なエネルギ吸収特性を得ることが出
来る。Therefore, it is possible to stabilize the reduction of the load F with respect to the displacement and to obtain an ideal energy absorption characteristic without increasing the weight of the members 1 and 2 to be joined.
【００３４】この第１実施例の車体部材の連結部構造で
は、リベット１７の切断部２３の外径を調整することに
より、破断荷重のコントロールを容易に行なうことが出
来る。In the vehicle body member connecting portion structure of the first embodiment, the breaking load can be easily controlled by adjusting the outer diameter of the cutting portion 23 of the rivet 17.
【００３５】図１０及び図１１は、この発明の第２実施
例を示すものである。前記第１実施例と同一乃至均等な
部材については、同一符号を付して説明する。10 and 11 show a second embodiment of the present invention. The same or equivalent members as those in the first embodiment will be described with the same reference numerals.
【００３６】この第２実施例の車体部材の連結部構造で
は、２つの部材１，２を接合する結合部３の周囲に、４
枚の板材２６，…を環状に連結して構成されるエネルギ
吸収部材２５が設けられている。このエネルギ吸収部材
２５の前記板材２６，…の連結部分５０の構造は、第１
実施例と同様である。In the vehicle body member connecting portion structure of the second embodiment, four members are provided around the joint portion 3 for joining the two members 1 and 2.
An energy absorbing member 25 is provided which is formed by annularly connecting the plate members 26, ... The structure of the connecting portion 50 of the plate members 26 of the energy absorbing member 25 is the first
It is similar to the embodiment.
【００３７】かかる構造において、上記と同様な外力が
作用すると、図１１に示す様に、４箇所の連結部分５０
が延びることにより、よりエネルギ吸収力が向上すると
共に、色々な方向からの外力に対するエネルギを有効に
吸収できる。In such a structure, when an external force similar to that described above acts, as shown in FIG. 11, four connecting portions 50 are formed.
By extending, the energy absorption power is further improved, and the energy with respect to external force from various directions can be effectively absorbed.
【００３８】図１２は、本発明の第３実施例を示すもの
である。前記第１実施例と同一乃至均等な部材について
は、同一符号を付して説明する。FIG. 12 shows a third embodiment of the present invention. The same or equivalent members as those in the first embodiment will be described with the same reference numerals.
【００３９】この実施例では、ジョイント部材２７がフ
レーム部材１の断面形状より大きく、接合部３０におい
て急激に断面変化している。そして、この接合部３０の
全周に渡ってエネルギ吸収部材３１が配設されている。In this embodiment, the joint member 27 is larger than the cross-sectional shape of the frame member 1 and the cross-section changes abruptly at the joint portion 30. An energy absorbing member 31 is arranged around the entire circumference of the joint 30.
【００４０】このエネルギ吸収部材３１は、２枚の板材
２９，３０が環状に連結されて構成されている。この連
結部分５０は、第１実施例と同様である。The energy absorbing member 31 is formed by connecting two plate members 29 and 30 in an annular shape. This connecting portion 50 is similar to that of the first embodiment.
【００４１】このように急激に断面変化しているものあ
っては、接合部３０に応力が集中して割れが生じ易い
が、エネルギ吸収部材３１を設けることにより、この部
材３１で接合部３０におけるエネルギを有効に吸収する
ことができる。In such a case where the cross-section changes abruptly, stress is likely to be concentrated in the joint portion 30 and cracks easily occur. However, by providing the energy absorbing member 31, the member 31 in the joint portion 30 is provided. Energy can be effectively absorbed.
【００４２】図１３及び図１４は、この発明の第４実施
例を示すものである。13 and 14 show a fourth embodiment of the present invention.
【００４３】上記第１実施例では、連結手段がリベット
１７であったが、この第４実施例では、スポット溶接に
て構成されている。In the first embodiment described above, the connecting means was the rivet 17, but in the fourth embodiment, spot welding is used.
【００４４】すなわち、フランジ部１０の一側面１３と
折畳み部１２の先端部側片１４、フランジ部１０の他側
面１５と折畳み部１２の基部側片１６がスポット溶接３
４，３５されて固定されることにより、エネルギ吸収部
材３６が構成されている。That is, one side surface 13 of the flange portion 10 and the tip side piece 14 of the folded portion 12, the other side surface 15 of the flange portion 10 and the base side piece 16 of the folded portion 12 are spot welded.
The energy absorbing member 36 is configured by being fixed by 4, 35 and.
【００４５】かかる構成によれば、外力が作用した場合
に、前記スポット溶接３４，３５の内、基部側片１６と
フランジ部１０の一側面１５とを連結していたスポット
溶接３５には剥離方向の外力が作用するため、このスポ
ット溶接３５が剥離し、基部側片１６とフランジ部１０
とが離間させられる。しかし、先端部側片１４とフラン
ジ部１０とを連結しているスポット溶接３４には、剪断
方向に力が作用することから、その連結を維持する。According to this structure, when an external force is applied, the spot welding 35 connecting the base side piece 16 and the one side surface 15 of the flange portion 10 among the spot weldings 34 and 35 has a peeling direction. The spot welding 35 peels off due to the external force of the base side piece 16 and the flange portion 10.
And are separated. However, since a force acts in the shearing direction on the spot welding 34 connecting the tip end side piece 14 and the flange portion 10, the connection is maintained.
【００４６】従って、このようにしても、エネルギ吸収
部材３６により、有効にエネルギを吸収することができ
る。Therefore, even in this case, the energy absorbing member 36 can effectively absorb the energy.
【００４７】このようにスポット溶接３４，３５により
固定するようにしているため、上記実施例のリベット１
７等と比較して、作業が良好である。Since the spot welds 34 and 35 are used for fixing in this manner, the rivet 1 of the above embodiment is used.
Work is better than 7th grade.
【００４８】図１５及び図１６は、この発明の第５実施
例を示すものである。15 and 16 show a fifth embodiment of the present invention.
【００４９】この第５実施例のエネルギ吸収部材３９
は、２枚の板材３７，３８を環状に連結して構成されて
いる。Energy absorbing member 39 of the fifth embodiment
Is formed by connecting two plate members 37 and 38 in an annular shape.
【００５０】この２つの部材１，２の接合部３の側面位
置で、前記２つの板材３７，３８が連結される連結部分
４２には、挿通孔４０，…が形成されている。 この挿
通孔４０，…は、エネルギ吸収部材３９の拡開方向であ
る図１５中上下方向を長手方向とする長孔形状を呈して
いる。Insertion holes 40, ... Are formed in a connecting portion 42 where the two plate members 37, 38 are connected at a side surface position of the joint portion 3 of the two members 1, 2. The insertion holes 40, ... Have a long hole shape whose longitudinal direction is the vertical direction in FIG. 15, which is the expanding direction of the energy absorbing member 39.
【００５１】そして、この挿通孔４０，…に、リベット
４１，…止めを施すことにより、前記２つの板材３７，
３８が環状に連結されている。Then, rivets 41, ... Are fixed to the insertion holes 40 ,.
38 are connected in a ring shape.
【００５２】このように構成された第５実施例の車体部
材の連結部構造では、２つの部材１，２に外力が加わる
と、リベット４１，…が、挿通孔４０，…を拡開しなが
ら移動する。In the structure of the connecting portion of the vehicle body member of the fifth embodiment having such a structure, when an external force is applied to the two members 1 and 2, the rivets 41, ... Expand the insertion holes 40 ,. Moving.
【００５３】このため、リベット４１，…が、挿通孔４
０，…を拡開しながら長孔方向に移動する際の抵抗力に
よって、エネルギを吸収すると共に、このリベット４
１，…と挿通孔４０，…との連結は、維持され、更に延
びながらエネルギを吸収するので、負荷荷重Ｆが急激に
落ち込むことがない。Therefore, the rivets 41, ...
The energy is absorbed by the resistance force when moving 0, ...
The connection between 1, ... And the insertion holes 40, .. is maintained, and since the energy is absorbed while being further extended, the load F does not drop suddenly.
【００５４】この実施例では、リベット４１の軸部の径
と、挿通孔４０の大きさとを調整することにより、リベ
ット４１移動時の抵抗力を変え、抵抗力のコントロール
を容易に行なうことが出来る。In this embodiment, by adjusting the diameter of the shaft portion of the rivet 41 and the size of the insertion hole 40, the resistance force when the rivet 41 is moved can be changed and the resistance force can be easily controlled. .
【００５５】また、この第５実施例の連結部分４２に
は、挿通孔４０，…が形成され、リベット４１止めを行
なうことにより、板材３７，３８が環状に連結され、エ
ネルギ吸収部材３９を構成するようにしているが、特に
これに限らず、例えば、リベット４１止めに替えて、ネ
ジ止め等を施すことにより、複数の板材３７，３８が連
結される様にしても良いことは当然である。Further, insertion holes 40, ... Are formed in the connecting portion 42 of the fifth embodiment, and the plate members 37, 38 are connected in an annular shape by fastening the rivet 41, thus forming the energy absorbing member 39. However, the present invention is not limited to this, and it is of course possible to connect the plurality of plate members 37 and 38 by screwing instead of the rivet 41 fixing. .
【００５６】他の構成および作用については、前記第１
実施例と略同様なので、その説明を省略する。With respect to other configurations and operations, the above first
The description is omitted because it is substantially the same as the embodiment.
【００５７】図１７乃至図１９は、この発明の第６実施
例を示すものである。17 to 19 show a sixth embodiment of the present invention.
【００５８】この第６実施例の車体部材の連結部構造で
は、延性を有する材料からなるエネルギ吸収部材４３，
４３が２つの部材１，２の上面部と下面部にそれぞれア
ーク溶接により固定されている。In the vehicle body member connecting portion structure of the sixth embodiment, the energy absorbing member 43, which is made of a ductile material,
43 are fixed to the upper and lower surfaces of the two members 1 and 2 by arc welding.
【００５９】図１８に示す様な曲げモーメントＭが作用
した場合に、この結合部３に図１９に示すように割れが
生じた後も、エネルギ吸収部材４３が延びながらエネル
ギを吸収し、２つの部材１，２間の接合を維持し、有効
にエネルギを吸収できる。When the bending moment M as shown in FIG. 18 acts, even after the joint 3 is cracked as shown in FIG. It is possible to maintain the joint between the members 1 and 2 and effectively absorb energy.
【００６０】他の構成および作用については、前記第１
実施例と略同様なので、その説明を省略する。With respect to other configurations and operations, the above first
The description is omitted because it is substantially the same as the embodiment.
【００６１】図２０及び図２１は、この発明の第７実施
例を示すものである。20 and 21 show a seventh embodiment of the present invention.
【００６２】この第７実施例のエネルギ吸収部材４７
は、環状の一枚の板状部材４４から構成され、４箇所に
折畳み部分４５，…が形成されている。The energy absorbing member 47 of the seventh embodiment.
Is composed of a single plate-shaped member 44 having an annular shape, and folding portions 45, ... Are formed at four positions.
【００６３】そして、この各折畳み部分４５，…の互い
に対向する板部４６，４６をスポット溶接４８，…によ
り連結するようにしている。The plate portions 46, 46 of the folding portions 45, ..., Which face each other, are connected by spot welding 48 ,.
【００６４】折畳み部分４５に対して、エネルギ吸収部
材４７の拡開方向に外力が加わると、前記スポット溶接
４８による板部４６，４６間の連結は解除され、図２１
に示すように、板状部材４４の折畳み部４５…が延びな
がらエネルギを吸収することとなる。When an external force is applied to the folded portion 45 in the expanding direction of the energy absorbing member 47, the connection between the plate portions 46 and 46 by the spot welding 48 is released, and FIG.
As shown in, the folding portions 45 of the plate-shaped member 44 absorb energy while extending.
【００６５】他の構成および作用については、前記第１
実施例と略同様なので、その説明を省略する。With respect to other configurations and operations, the above first
The description is omitted because it is substantially the same as the embodiment.
【００６６】なお、ここではエネルギ吸収部材４７の折
畳み部４５に、スポット溶接４８を施すことにより、板
部４６，４６間を連結するようにしているが、特にこれ
に限らず、リベットで連結するようにしても良い。Although the folded portion 45 of the energy absorbing member 47 is spot welded 48 to connect the plate portions 46, 46 to each other, the invention is not limited to this, and the rivets are used for connection. You may do it.
【００６７】[0067]
【発明の効果】以上説明してきたように、この発明によ
れば、従来のように、負荷荷重が急激に落ち込むことな
く、エネルギ吸収部材が延びて変形しながらエネルキの
吸収が行われるため、連結される車体部材の重量を増加
させることなく、負荷荷重の急激な減少を抑えて、理想
的に近いエネルギ吸収特性を得ることができる、という
実用上有益な効果を発揮する。As described above, according to the present invention, unlike the prior art, the energy absorbing member is extended and deformed to absorb the energy without a sudden drop in the applied load. It is possible to obtain a practically useful effect that an abrupt decrease in the applied load can be suppressed and an energy absorption characteristic close to ideal can be obtained without increasing the weight of the vehicle body member.
【図面の簡単な説明】[Brief description of drawings]
【図１】この発明の第１実施例の車体部材の連結部構造
を示す斜視図である。FIG. 1 is a perspective view showing a structure of a connecting portion of a vehicle body member according to a first embodiment of the present invention.
【図２】第１実施例の車体部材の連結部構造を示し、エ
ネルギ吸収部材の側面図である。FIG. 2 is a side view of the energy absorbing member showing the structure of the connecting portion of the vehicle body member of the first embodiment.
【図３】第１実施例の車体部材の連結部構造を示し、図
１のＡ−Ａ断面図である。FIG. 3 is a sectional view taken along the line AA in FIG. 1, showing the structure of the connecting portion of the vehicle body member of the first embodiment.
【図４】第１実施例の車体部材の連結部構造を示し、図
５のＢ−Ｂ断面図である。FIG. 4 is a cross-sectional view taken along the line BB of FIG. 5, showing the structure of the connecting portion of the vehicle body member of the first embodiment.
【図５】第１実施例の車体部材の連結部構造を示し、外
力が連結部分に作用した様子を示すエネルギ吸収部材の
側面図である。FIG. 5 is a side view of the energy absorbing member showing the structure of the connecting portion of the vehicle body member of the first embodiment and showing how an external force acts on the connecting portion.
【図６】第１実施例のリベットを示す正面図である。FIG. 6 is a front view showing the rivet of the first embodiment.
【図７】第１実施例の車体部材の連結部構造を示し、板
材の連結部分を示す要部拡大断面図である。FIG. 7 is an enlarged sectional view of an essential part showing a connecting portion structure of a vehicle body member of the first embodiment and showing a connecting portion of a plate member.
【図８】第１実施例の車体部材の連結部構造を示し、外
力が作用した板材の連結部分を示す要部拡大断面図であ
る。FIG. 8 is an enlarged sectional view of an essential part showing a connecting portion structure of a vehicle body member of the first embodiment and showing a connecting portion of a plate member to which an external force is applied.
【図９】第１実施例のエネルギ吸収特性を従来のエネル
ギ吸収特性と比較したグラフ図である。FIG. 9 is a graph comparing the energy absorption characteristics of the first embodiment with the conventional energy absorption characteristics.
【図１０】この発明の第２実施例の車体部材の連結部構
造を示し、図１のＡ−Ａ断面図に対応する箇所の断面図
である。FIG. 10 is a sectional view showing a structure of a connecting portion of a vehicle body member according to a second embodiment of the invention and showing a portion corresponding to the AA sectional view of FIG. 1.
【図１１】第２実施例の車体部材の連結部構造を示し、
外力が作用した様子を示す図１のＡ−Ａ断面図に対応す
る箇所の断面図である。FIG. 11 shows a structure of a connecting portion of a vehicle body member according to a second embodiment,
It is sectional drawing of a part corresponding to the AA sectional view of FIG. 1 which shows a mode that the external force acted.
【図１２】この発明の第３実施例の車体部材の連結部構
造を示す斜視図である。FIG. 12 is a perspective view showing a structure of a connecting portion of a vehicle body member according to a third embodiment of the present invention.
【図１３】この発明の第４実施例の車体部材の連結部構
造を示し、板材の連結部分を示す要部拡大断面図であ
る。FIG. 13 is an enlarged sectional view of an essential part showing a connecting portion structure of a vehicle body member of a fourth embodiment of the invention and showing a connecting portion of a plate material.
【図１４】第４実施例の車体部材の連結部構造を示し、
外力が作用した板材の連結部分を示す要部拡大断面図で
ある。FIG. 14 shows the structure of the connecting portion of the vehicle body member of the fourth embodiment,
It is a principal part expanded sectional view which shows the connection part of the board | plate material to which the external force acted.
【図１５】この発明の第５実施例の車体部材の連結部構
造を示す斜視図である。FIG. 15 is a perspective view showing the structure of the connecting portion of the vehicle body member according to the fifth embodiment of the present invention.
【図１６】第５実施例の車体部材の連結部構造を示し、
図１５のＣ−Ｃ断面図である。FIG. 16 shows the structure of the connecting portion of the vehicle body member of the fifth embodiment,
It is CC sectional drawing of FIG.
【図１７】この発明の第６実施例の車体部材の連結部構
造を示す斜視図である。FIG. 17 is a perspective view showing a structure of a connecting portion of a vehicle body member according to a sixth embodiment of the present invention.
【図１８】第６実施例の車体部材の連結部構造を示し、
２つの部材の連結部分にエネルギ吸収部材を配設した様
子を示す側面図である。FIG. 18 shows the structure of the connecting portion of the vehicle body member of the sixth embodiment,
It is a side view showing a mode that an energy absorption member is arranged at a connecting portion of two members.
【図１９】第６実施例の車体部材の連結部構造を示し、
２つの部材の連結部分に外力が作用した様子を示す側面
図である。FIG. 19 shows the structure of the connecting portion of the vehicle body member of the sixth embodiment,
It is a side view which shows a mode that the external force acted on the connection part of two members.
【図２０】この発明の第７実施例の車体部材の連結部構
造を示し、前記第１実施例の図３に対応する部分の断面
図である。20 is a sectional view showing a structure of a connecting portion of a vehicle body member according to a seventh embodiment of the present invention and showing a portion corresponding to FIG. 3 of the first embodiment. FIG.
【図２１】第７実施例の車体部材の連結部構造を示し、
前記第１実施例の図８に対応する部分の部分拡大断面図
である。FIG. 21 shows the structure of the connecting portion of the vehicle body member of the seventh embodiment,
FIG. 9 is a partially enlarged sectional view of a portion corresponding to FIG. 8 of the first embodiment.
【図２２】従来例の車体部材の連結部構造を示す斜視図
である。FIG. 22 is a perspective view showing a structure of a connecting portion of a conventional vehicle body member.
【図２３】従来例の車体部材の連結部構造を示し、外力
が２つの部材の結合部に作用した様子を示す側面図であ
る。FIG. 23 is a side view showing the structure of the connecting portion of the vehicle body member of the conventional example, showing how an external force acts on the joint portion of the two members.
【図２４】従来例の車体部材の連結部構造におけるエネ
ルギ吸収特性を実線で示し、一点鎖線でしめされる板厚
を増加させた場合と比較したグラフ図である。FIG. 24 is a graph showing the energy absorption characteristics of the connecting portion structure of the vehicle body member of the conventional example by a solid line and comparing with the case where the plate thickness indicated by the alternate long and short dash line is increased.
【符号の説明】 ７ エネルギ吸収部材 ８ 板材 10 フランジ部 12 折畳み部 13 一側面 14 先端側片 15 他側面 16 基部側片 17 リベット（連結手段） 50 連結部分[Explanation of symbols] 7 energy absorbing member 8 plate material 10 flange portion 12 folding portion 13 one side surface 14 tip side piece 15 other side surface 16 base side piece 17 rivet (coupling means) 50 coupling part
Claims (7)
車体部材の端部を突合わせて接合すると共に、該接合部
に両車体部材に跨るように易破断部と屈進部とからなる
エネルギ吸収部材を設け、該両車体部材に接合部から折
れ曲がる方向に外力が作用した時に、前記エネルギ吸収
部材が延断することによりエネルギーを吸収することを
特徴とする車体部材の連結部構造。1. An energy absorbing member having an end portion of two body members of a frame member and a joint member butted against each other and joined to each other, and having an easily breakable portion and a bending portion so as to straddle both the vehicle body members at the joint portion. And a structure for connecting the vehicle body members, wherein the energy absorbing member is extended and cut to absorb energy when an external force acts on the both vehicle body members in a bending direction from the joint.
周に渡って配設されるように、互いに連結される複数の
板材を有し、一の板材の端部に外側に折曲するフランジ
部が形成され、他の板材の端部に前記フランジ部を両面
側から把持する折畳み部が形成され、該折畳み部は、前
記フランジ部の一側面に当接する先端部側片と、前記フ
ランジ部の他側面に当接する基部側片とを形成すると共
に、前記フランジ部と折畳み部とを連結手段にて連結
し、該連結手段は、該両車体部材に接合部から折れ曲が
る方向に外力が作用した時に、前記基部側片とフランジ
部とが離間させられると共に、前記先端部側片とフラン
ジ部との連結状態を維持することを特徴とする車体部材
の連結部構造。2. The energy absorbing member has a plurality of plate members connected to each other so as to be arranged over the entire circumference of the joint, and is bent outward at an end of one plate member. A flange portion is formed, and a folding portion for gripping the flange portion from both sides is formed at an end portion of another plate member, and the folding portion includes a tip side piece that abuts one side surface of the flange portion and the flange. A base side piece that abuts on the other side surface of the portion, and the flange portion and the folding portion are connected by a connecting means, and the connecting means applies an external force to the both vehicle body members in the direction of bending from the joint portion. When the above is done, the base portion side piece and the flange portion are separated from each other, and the connecting state of the tip end side piece and the flange portion is maintained, and the connecting portion structure of the vehicle body member.
面と、前記折畳み部の先端部側片とを接合すると共に、
前記フランジ部の他側面と前記折畳み部の基部側片とを
接合するスポット溶接であることを特徴とする請求項２
記載の車体部材の連結部構造。3. The connecting means joins one side surface of the flange portion and a tip side piece of the folding portion,
The spot welding is used to join the other side surface of the flange portion and the base side piece of the folded portion.
The structure of the connecting portion of the vehicle body member described.
リベットは、軸部の途中でフランジ部の基部側一側面に
当接する位置に中間頭部を設け、該中間頭部と頭部との
間に軸方向に作用する外力によって、軸部の中間頭部と
先端部との間よりも破断し易い切断部を設けたことを特
徴とする請求項２記載の車体部材の連結部構造。4. The connecting means comprises a rivet, and the rivet is provided with an intermediate head portion at a position in contact with one side surface of the flange portion on the base side in the middle of the shaft portion. 3. The vehicle body member connecting portion structure according to claim 2, wherein a cutting portion that is more easily broken than an intermediate head portion and a tip portion of the shaft portion by an external force acting in the axial direction is provided therebetween.
周に渡って配設されるように、互いに連結される複数の
板材を有し、該連結部分において、前記板材には挿通孔
が形成され、該挿通孔を介してリベット止め又はネジ止
めにより環状に連結され、前記挿通孔は、エネルギ吸収
部材の拡開方向を長手方向とする長孔であることを特徴
とする請求項１記載の車体部材の連結部構造。5. The energy absorbing member has a plurality of plate members connected to each other so as to be arranged over the entire circumference of the joint portion, and at the connecting portion, an insertion hole is formed in the plate member. The formed hole is connected in an annular shape by riveting or screwing through the insertion hole, and the insertion hole is a long hole whose longitudinal direction is the expanding direction of the energy absorbing member. Structure of the connecting parts of the car body members.
材料から形成され、両車体部材に各々固定されることに
より跨って配設されたことを特徴とする請求項１記載の
車体部材の連結部構造。6. The connecting portion of the vehicle body member according to claim 1, wherein the energy absorbing member is formed of a ductile material and is disposed so as to be straddled by being fixed to both vehicle body members. Construction.
板状部材が連結されると共に、一部に折畳み部分が形成
され、該折畳み部分の互いに対向する板部同士が連結手
段にて連結され、該連結手段は、該両車体部材に接合部
から折れ曲がる方向に外力が作用した時に、連結状態が
解除されるように設定されていることを特徴とする請求
項１記載の車体部材の連結部構造。7. The energy absorbing member includes a plate-shaped member integrally connected in an annular shape, a folded portion formed in part, and plate portions facing each other of the folded portion are connected by a connecting means. The connecting portion of the vehicle body member according to claim 1, wherein the connecting means is set to release the connected state when an external force acts on the both vehicle body members in a bending direction from the joint portion. Construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05021214A JP3107123B2 (en) | 1993-02-09 | 1993-02-09 | Connection structure of body members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05021214A JP3107123B2 (en) | 1993-02-09 | 1993-02-09 | Connection structure of body members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06227427A true JPH06227427A (en) | 1994-08-16 |
| JP3107123B2 JP3107123B2 (en) | 2000-11-06 |
Family
ID=12048757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05021214A Expired - Fee Related JP3107123B2 (en) | 1993-02-09 | 1993-02-09 | Connection structure of body members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3107123B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10152067A (en) * | 1996-11-26 | 1998-06-09 | Nissan Motor Co Ltd | Vehicle body jointing part structure |
| US20110175337A1 (en) * | 2010-01-18 | 2011-07-21 | Ferrari S.P.A. | Composite bar for the chassis of a vehicle |
| EP2644479A3 (en) * | 2012-03-26 | 2015-12-02 | Duckwonent Co., Ltd. | Chassis frame connection for an electrical vehicle for disabled person |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0653012U (en) * | 1992-12-26 | 1994-07-19 | 日立ツール株式会社 | High precision ball end mill |
-
1993
- 1993-02-09 JP JP05021214A patent/JP3107123B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10152067A (en) * | 1996-11-26 | 1998-06-09 | Nissan Motor Co Ltd | Vehicle body jointing part structure |
| US20110175337A1 (en) * | 2010-01-18 | 2011-07-21 | Ferrari S.P.A. | Composite bar for the chassis of a vehicle |
| US8424912B2 (en) * | 2010-01-18 | 2013-04-23 | Ferrari S.P.A. | Composite bar for the chassis of a vehicle |
| EP2644479A3 (en) * | 2012-03-26 | 2015-12-02 | Duckwonent Co., Ltd. | Chassis frame connection for an electrical vehicle for disabled person |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3107123B2 (en) | 2000-11-06 |
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