JP6743462B2 - Bonding structure of different materials - Google Patents

Bonding structure of different materials Download PDF

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JP6743462B2
JP6743462B2 JP2016076683A JP2016076683A JP6743462B2 JP 6743462 B2 JP6743462 B2 JP 6743462B2 JP 2016076683 A JP2016076683 A JP 2016076683A JP 2016076683 A JP2016076683 A JP 2016076683A JP 6743462 B2 JP6743462 B2 JP 6743462B2
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joining member
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flange portion
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林　克明
克明 林
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Suzuki Motor Co Ltd
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本発明は、互いに異なる熱膨張率を有する２つの接合部材を接着剤によって接合している異種材料接着構造に関する。 The present invention relates to a dissimilar material adhesive structure in which two joining members having different thermal expansion coefficients are joined by an adhesive.

各種産業分野にて利用される輸送機械等の機械、装置等の部品に対しては、互いに異なる熱膨張率を有する２つの接合部材を接着剤によって接合している異種材料接着構造が採用されることがある。例えば、自動車等の車両の部品、特に、自動車のエンジンフード等のように広い面積を有する部品には、板金製のインナーパネルとプラスチック製のアウターパネルとを接着剤によって接合している異種材料接着構造が採用されることがある。 A different material bonding structure in which two bonding members having different thermal expansion coefficients are bonded with an adhesive is used for parts such as machines and devices such as transportation machines used in various industrial fields. Sometimes. For example, for a part of a vehicle such as an automobile, particularly a part having a large area such as an engine hood of an automobile, an inner panel made of sheet metal and an outer panel made of plastic are joined by an adhesive to bond different materials. A structure may be adopted.

しかしながら、異種材料接着構造においては、２つの接合部材を接合した接合体が外部環境の温度変化によって熱膨張又は熱収縮した場合に、２つの接合部材の変形量が相違する。この場合、接合部分には、シワ等の形成に起因する応力集中が発生するおそれがあり、ひいては、接合部分が剥離するおそれがある。そこで、このような応力を分散すべく、様々な異種材料接着構造が提案されている。 However, in the dissimilar material adhesive structure, when the joined body that joins the two joining members thermally expands or contracts due to the temperature change of the external environment, the deformation amounts of the two joining members differ. In this case, stress concentration due to the formation of wrinkles or the like may occur in the joint portion, and the joint portion may peel off. Therefore, various dissimilar material adhesive structures have been proposed in order to disperse such stress.

異種材料接着構造の一例としては、車体後面のバックドア（リヤゲート本体）に沿って配置されると共に互いに対向する板金製のインナーパネル及びプラスチック製のアウターパネルを備え、インナーパネルの端領域が、バックドアに沿って延びる基部と、該基部の長手方向の先端からアウターパネルの端領域に向かって突出するフランジ部（突条部）とを有するようにＬ字形状に形成され、アウターパネルの端領域が、バックドアに沿って延びる基部と、該基部の長手方向の先端に位置すると共にインナーパネルの端領域に向かって開口する溝部とを有するように形成されている、異種材料接着構造であって、インナーパネルのフランジ部が、アウターパネルの溝部にその開口から挿入され、かつ該溝部内に充填された接着剤から成る接着部（シール部材）に埋め込まれた状態で、インナーパネル及びアウターパネルの端領域が互いに接合されている、異種材料接着構造が挙げられる。（例えば、特許文献１を参照。） As an example of the dissimilar material adhesion structure, an inner panel made of sheet metal and an outer panel made of plastic, which are arranged along the back door (rear gate body) on the rear surface of the vehicle body and face each other, are provided. It is formed in an L shape so as to have a base portion extending along the door and a flange portion (projection portion) protruding from the longitudinal end of the base portion toward the end region of the outer panel, and the end region of the outer panel. Is a heterogeneous material bonding structure, which is formed so as to have a base portion extending along the back door and a groove portion which is located at a distal end in the longitudinal direction of the base portion and opens toward an end region of the inner panel. In the state where the flange portion of the inner panel is inserted into the groove portion of the outer panel from its opening and is embedded in the adhesive portion (sealing member) made of the adhesive filled in the groove portion, the inner panel and the outer panel are Mention may be made of dissimilar material adhesive structures in which the end regions are joined together. (For example, refer to Patent Document 1.)

異種材料接着構造の別の一例としては、自動車用フードに沿って配置されると共に互いに対向する板金製のインナーパネル及びプラスチック製のアウターパネルと、Ｌ字形状の断面を有する溝部を含むブラケットとを備え、インナーパネルの端領域が、フードに沿って延びる基部と、該基部に対してアウターパネル側にズレて配置される先端部とを有するようにクランク形状に形成され、アウターパネルの端領域がフードに沿って延びるように形成され、ブラケットが、その溝部を車両上方及びインナーパネルの端領域に向けて開口させるように配置されている、異種材料接着構造であって、ブラケットの上端部が接着剤によってアウターパネルの端領域に接合され、かつインナーパネルの先端部が、アウターパネルとブラケットの溝部とにより囲まれた空間にその開口から挿入されると共に、該空間内に充填された接着剤から成る接着部に埋め込まれた状態で、インナーパネル及びアウターパネルの端領域が互いに接合されている、異種材料接着構造が挙げられる。（例えば、特許文献２を参照。） As another example of the dissimilar material bonding structure, an inner panel made of sheet metal and an outer panel made of plastic, which are arranged along an automobile hood and face each other, and a bracket including a groove having an L-shaped cross section are provided. The inner panel end region is formed in a crank shape so as to have a base portion extending along the hood and a distal end portion that is displaced relative to the base portion on the outer panel side. A dissimilar material bonding structure, which is formed so as to extend along the hood and is arranged so that the groove portion thereof is opened toward the upper side of the vehicle and the end region of the inner panel, and the upper end portion of the bracket is bonded. Is joined to the end region of the outer panel by a chemical agent, and the tip of the inner panel is inserted into the space surrounded by the outer panel and the groove of the bracket through the opening, and the adhesive filled in the space is used. There is a different material bonding structure in which the end regions of the inner panel and the outer panel are bonded to each other in a state of being embedded in the bonding portion. (For example, refer to Patent Document 2.)

特開２０１３−１４１８７７号公報JP, 2013-141877, A 特開２００７−１１８８５２号公報JP, 2007-118852, A

しかしながら、異種材料接着構造の一例においては、接合体の熱膨張又は熱収縮時に生じる２つの接合部材における変形量の差異に基づく荷重によって、インナーパネルの端領域におけるフランジ部が撓む際に、該フランジ部が接着部から抜けるおそれがある。また、異種材料接着構造の別の一例においては、上述した荷重によって、アウターパネルの端領域及びブラケット間の接着が剥がれるおそれがある。そのため、異種材料接着構造は、上述の荷重を効率的に吸収するという点でさらに改善することを望まれる。 However, in one example of the dissimilar material adhesive structure, when the flange portion in the end region of the inner panel bends due to the load based on the difference in deformation amount between the two joining members that occurs during thermal expansion or thermal contraction of the joined body, The flange may come off from the adhesive. Further, in another example of the dissimilar material adhesion structure, the adhesion between the end region of the outer panel and the bracket may be peeled off by the load described above. Therefore, it is desired that the dissimilar material adhesive structure is further improved in that it efficiently absorbs the above-mentioned load.

さらに、異種材料接着構造の一例においては、インナーパネル及びアウターパネルを接合した接合体の外部に、インナーパネル及びアウターパネル間の接着部が露出する。また、異種材料接着構造の別の一例においては、インナーパネル、アウターパネル、及びブラケットを接合した接合体の外部に、アウターパネル及びブラケット間の接着部が露出する。このように接合体の外部に露出した接着部に、接合体を取り扱う作業者等が触れると、接着部の接着剤が作業者等に付着するおそれがある。そのため、接合体外部への接着部の露出を防ぐこともまた望まれる。 Furthermore, in an example of the different material bonding structure, the bonding portion between the inner panel and the outer panel is exposed to the outside of the bonded body in which the inner panel and the outer panel are bonded. In another example of the dissimilar material adhesive structure, the adhesive portion between the outer panel and the bracket is exposed outside the joined body in which the inner panel, the outer panel, and the bracket are joined. When an operator or the like who handles the bonded body touches the bonded portion exposed to the outside of the bonded body in this manner, the adhesive in the bonded portion may adhere to the worker or the like. Therefore, it is also desired to prevent the adhesive portion from being exposed to the outside of the joined body.

本発明は、上記実情を鑑みて成されたものであり、本発明の目的は、接合体が熱膨張又は熱収縮した時に接合部分に加わる応力を効率的に分散させることができると共に、接合体外部への接着部の露出を防ぐことができる異種材料接着構造を提供することにある。 The present invention has been made in view of the above circumstances, and an object of the present invention is to efficiently disperse the stress applied to the joint portion when the joint body thermally expands or contracts, and the joint body. Another object of the present invention is to provide a dissimilar material adhesion structure capable of preventing the adhesion part from being exposed to the outside.

課題を解決するために、本発明の一態様に係る異種材料接着構造によれば、互いに異なる熱膨張率を有する第１及び第２の接合部材を備え、前記第１の接合部材が板金製であり、かつ前記第２の接合部材がプラスチック製であり、前記第１及び第２の接合部材が互いに対向した状態で第１の方向に沿って配置されており、前記第１及び第２の接合部材の端領域が接着剤を用いて互いに接合されている、異種材料接着構造において、前記第１の接合部材の端領域が、前記第１の方向に延びる基部と、該基部における前記第１の方向の先端からＬ字形状に延びるフランジ部とを有するようにＪ字形状に曲がっており、前記第２の接合部材の端領域が、前記第１の方向と交差する第２の方向に延びる基部と、前記第１の方向に沿って配置されるフランジ部とを有するように曲がっており、前記第２の接合部材のフランジ部が、前記第２の接合部材の基部における前記第２の方向の先端からＵ字形状に延びており、前記第２の接合部材のフランジ部と前記第１の接合部材の基部とが互いに間隔を空けるように離れており、前記第２の接合部材のフランジ部における前記第１の方向のＵ字形状の先端区域が、前記第１の接合部材における基部及びフランジ部により画定される凹状空間の開口を通って該凹状空間の内部に挿入されており、前記接着剤を含む接着部が前記凹状空間に配置され、かつ前記第２の接合部材のフランジ部におけるＵ字形状の先端区域が前記接着部に埋め込まれた状態で、前記第１及び第２の接合部材の端領域が前記接着部によって接合されている。そのため、接合体の熱膨張又は熱収縮時に生じる第１及び第２の接合部材における変形量の差異に起因する荷重を、第１の接合部材におけるＬ字形状のフランジ部の変形と、第２の接合部材における基部の撓みと、第１の接合部材における凹状空間に配置されると共に第２の接合部材におけるフランジ部の先端区域を埋め込んだ接着部の変形とによって効率的に吸収することができる。その結果、接合体の熱膨張又は熱収縮時に接合部分に加わる応力を効率的に分散させることができる。なお、第１の接合部材の熱膨張率が第２の接合部材の熱膨張率よりも大きい場合、特に、第１の接合部材がプラスチック製であり、かつ第２の接合部材が板金製である場合に、接合体の熱膨張又は熱収縮時に接合部分に加わる応力をさらに効率的に分散させることができる。さらに、第１及び第２の接合部材を接合した接着部が、第１の接合部材の基部及びフランジ部によって隠れるので、接合体外部への接着部の露出を防ぐことができる。すなわち、本発明の一態様に係る異種材料接着構造によれば、接合体が熱膨張又は熱収縮した時に接合部分に加わる応力を効率的に分散させることができると共に、接合体外部への接着部の露出を防ぐことができる。さらに、本発明の一態様に係る異種材料接着構造によれば、前記第２の接合部材のフランジ部が、前記第２の接合部材の基部における前記第２の方向の先端からＵ字形状に延びている。そのため、上述のような第１及び第２の接合部材における変形量の差異に起因する荷重を、第１の接合部材におけるフランジ部の変形、第２の接合部材における基部の撓み、並びに接着部の変形に加えて、第２の接合部材におけるＵ字形状のフランジ部の変形によってさらに効率的に吸収することができる。
To solve the problem, according to the dissimilar material adhesive structure according to one aspect of the present invention, the first and second joining members having different thermal expansion coefficients are provided, and the first joining member is made of sheet metal. And the second joining member is made of plastic, and the first and second joining members are arranged along the first direction so as to face each other, and the first and second joining members are provided. In a dissimilar material adhesive structure, wherein the end regions of the members are joined together using an adhesive, the end regions of the first joining member include a base extending in the first direction and the first portion of the base. A base portion extending in a second direction intersecting the first direction, the end region of the second joining member being bent in a J shape so as to have a flange portion extending in the L direction from the tip in the direction. And a flange portion arranged along the first direction, and the flange portion of the second joining member has a second portion in the second direction at the base portion of the second joining member. It extends in a U-shape from the tip, the flange portion of the second joining member and the base portion of the first joining member are spaced apart from each other, and in the flange portion of the second joining member. The U-shaped tip region in the first direction is inserted into the inside of the concave space through an opening of the concave space defined by the base portion and the flange portion of the first joining member, and the adhesive Of the first and second joining members in a state in which an adhesive portion including a is disposed in the concave space, and a U-shaped tip region of the flange portion of the second joining member is embedded in the adhesive portion. The end regions are joined by the adhesive. Therefore, the load caused by the difference in the deformation amount between the first and second joining members, which occurs when the joined body thermally expands or contracts, is reduced by the deformation of the L-shaped flange portion of the first joining member and the load of the second joining member. It can be efficiently absorbed by the bending of the base portion of the joining member and the deformation of the adhesive portion which is disposed in the concave space of the first joining member and which fills the tip region of the flange portion of the second joining member. As a result, it is possible to efficiently disperse the stress applied to the joint portion during thermal expansion or thermal contraction of the joined body. When the coefficient of thermal expansion of the first joining member is larger than that of the second joining member, the first joining member is made of plastic and the second joining member is made of sheet metal . In this case, the stress applied to the joint portion at the time of thermal expansion or thermal contraction of the joined body can be more efficiently dispersed. Further, since the adhesive portion that joins the first and second joining members is hidden by the base portion and the flange portion of the first joining member, it is possible to prevent the adhesive portion from being exposed to the outside of the joined body. That is, according to the dissimilar material adhesive structure according to one aspect of the present invention, it is possible to efficiently disperse the stress applied to the joint portion when the joint body thermally expands or contracts, and at the same time, to the outside of the joint portion. You can prevent the exposure of. Further, according to the different material bonding structure according to the aspect of the present invention, the flange portion of the second joining member extends in a U-shape from the tip of the base portion of the second joining member in the second direction. ing. Therefore, the load resulting from the difference in the deformation amount between the first and second joining members as described above is applied to the deformation of the flange portion of the first joining member, the bending of the base portion of the second joining member, and the adhesion portion. In addition to the deformation, the U-shaped flange portion of the second joining member can be deformed more efficiently to absorb the deformation.

本発明の一態様に係る異種材料接着構造によれば、前記第２の接合部材の端領域における曲げ部分に複数の切欠部が形成されている。そのため、第２の接合部材の端領域における曲げ部分の複数の切欠部によって、かかる曲げ部分を形成した際に生じる残留応力を効率的に分散させることができる。
According to the dissimilar material bonding structure according to the aspect of the present invention, the plurality of notches are formed in the bent portion in the end region of the second joining member. Therefore, the plurality of notches in the bent portion in the end region of the second joining member can efficiently disperse the residual stress generated when the bent portion is formed.

本発明の一態様に係る異種材料接着構造によれば、接合体の熱膨張又は熱収縮時に接合部分に加わる応力を効率的に分散させることができると共に、接合体外部への接着部の露出を防ぐことができる。 According to the dissimilar material adhesive structure according to one embodiment of the present invention, the stress applied to the joint portion at the time of thermal expansion or thermal contraction of the joint body can be efficiently dispersed, and the exposed portion of the joint portion to the outside of the joint body can be exposed. Can be prevented.

本発明の第１実施形態に係る異種材料接着構造を含む接合体の端領域を模式的に示す断面図である。It is sectional drawing which shows typically the end area of the joined body containing the dissimilar material adhesion structure which concerns on 1st Embodiment of this invention. 本発明の第２実施形態に係る異種材料接着構造を含む接合体の端領域を模式的に示す断面図である。It is sectional drawing which shows typically the edge area|region of the joined body containing the dissimilar material adhesion structure which concerns on 2nd Embodiment of this invention. 本発明の第３実施形態に係る異種材料接着構造を含む接合体の端領域を模式的に示す断面図である。It is sectional drawing which shows typically the edge area|region of the joined body containing the dissimilar material adhesion structure which concerns on 3rd Embodiment of this invention. 本発明の第４実施形態に係る異種材料接着構造を含む接合体の端領域を模式的に示す断面図である。It is sectional drawing which shows typically the edge area|region of the joined body containing the dissimilar material adhesion structure which concerns on 4th Embodiment of this invention.

本発明の第１〜第４実施形態に係る異種材料接着構造について以下に説明する。なお、各実施形態に係る異種材料接合構造は、各種産業分野にて利用される機械、装置等の部品のような接合体に適用することができる。例えば、かかる接合体は、自動車等の車両の部品であると好ましく、特に、接合体は、自動車のエンジンフード、バックドア等のように広い面積を有する部品であると好ましい。 The different material adhesion structures according to the first to fourth embodiments of the present invention will be described below. The dissimilar material joint structure according to each embodiment can be applied to a joint body such as a component of a machine, an apparatus, or the like used in various industrial fields. For example, such a joined body is preferably a component of a vehicle such as an automobile, and particularly, the joined body is preferably a component having a large area such as an engine hood of an automobile or a back door.

［第１実施形態］
本発明の第１実施形態に係る異種材料接着構造を含む接合体について説明する。 [First Embodiment]
A bonded body including a different material bonding structure according to the first embodiment of the present invention will be described.

［基本的な構成］
接合体の構成要素の基本的な構成について説明する。図１に示すように、接合体は、樹脂を用いて作製された第１の接合部材１と、金属を用いて作製された第２の接合部材２とを備えており、第１の接合部材１の熱膨張率は第２の接合部材２の熱膨張率よりも高くなっている。特に、第１の接合部材１は、射出成型によって作製されたプラスチック部材であると好ましく、かつ第２の接合部材２は、プレス成型によって作製された板金部材であると好ましい。第１及び第２の接合部材１，２はまた、互いに対向した状態で第１の方向（矢印Ａにより示す）に沿って配置されている。このような第１及び第２の接合部材１，２が、接着剤から成る接着部３を用いて接合される。 [Basic configuration]
The basic configuration of the components of the joined body will be described. As shown in FIG. 1, the joined body includes a first joining member 1 made of a resin and a second joining member 2 made of a metal. The coefficient of thermal expansion of No. 1 is higher than that of the second joining member 2. In particular, the first joining member 1 is preferably a plastic member manufactured by injection molding, and the second joining member 2 is preferably a sheet metal member manufactured by press molding. The first and second joining members 1 and 2 are also arranged along the first direction (indicated by arrow A) so as to face each other. Such first and second joining members 1 and 2 are joined together by using the adhesive portion 3 made of an adhesive.

しかしながら、本発明の異種材料接着構造を含む接合体の基本的な構成は、これに限定されず、次のようになっていてもよい。第１及び第２の接合部材の熱膨張率が異なっていれば、第１の接合部材１の熱膨張率は第２の接合部材の熱膨張率よりも低くなっていてもよい。また、第１の接合部材が樹脂以外の材料を用いて作製されていてもよく、例えば、第１の接合部材が金属を用いて作製されていてもよい。第２の接合部材が金属以外の材料を用いて作製されていてもよく、例えば、第２の接合部材が樹脂を用いて作製されていてもよい。接着部には、接着剤に加えて、硬化剤等のようなその他の材料、不純物等が含まれていてもよい。 However, the basic structure of the bonded body including the different material adhesion structure of the present invention is not limited to this, and may be as follows. If the thermal expansion coefficients of the first and second joining members are different, the thermal expansion coefficient of the first joining member 1 may be lower than the thermal expansion coefficient of the second joining member. Further, the first joining member may be made of a material other than resin, for example, the first joining member may be made of a metal. The second joining member may be made of a material other than metal, for example, the second joining member may be made of a resin. In addition to the adhesive agent, the adhesive portion may include other materials such as a curing agent, impurities and the like.

［具体的な構成］
第１の接合部材１、第２の接合部材２、及び接着部３の具体的な構成について説明する。図１に示すように、第１の接合部材１の外周縁領域の少なくとも一部である端領域４は、第１の方向に延びる基部５と、この基部５における第１の方向の先端から突出するフランジ部６とを有するように略Ｌ字形状に曲がって形成されている。第１の接合部材１における基部５及びフランジ部６は一体となっている。かかるフランジ部６は、第１の方向に交差する方向に延びており、特に、フランジ部６は、第１の方向に略直交する方向に延びると好ましい。 [Specific configuration]
Specific configurations of the first joining member 1, the second joining member 2, and the adhesive portion 3 will be described. As shown in FIG. 1, an end region 4 which is at least a part of an outer peripheral edge region of the first joining member 1 protrudes from a base portion 5 extending in the first direction and a tip of the base portion 5 in the first direction. Is formed so as to have a flange portion 6 which is formed into a substantially L shape. The base portion 5 and the flange portion 6 of the first joining member 1 are integrated. The flange portion 6 extends in a direction intersecting the first direction, and in particular, the flange portion 6 preferably extends in a direction substantially orthogonal to the first direction.

第２の接合部材２の外周縁領域の少なくとも一部である端領域７は、第２の方向（矢印Ｂにより示す）に延びる基部８と、第１の方向に沿って配置されるフランジ部９とを有するように略Ｌ字形状に曲がって形成されている。第２の方向は第１の方向と交差しており、特に、第２の方向は第１の方向と略直交すると好ましい。第２の接合部材２における基部８及びフランジ部９は一体となっている。かかるフランジ部９は、具体的には、基部８における第２の方向の先端から第１の接合部材１の基部５に沿って延びている。 The end region 7, which is at least a part of the outer peripheral region of the second joining member 2, has a base portion 8 extending in the second direction (indicated by an arrow B) and a flange portion 9 arranged along the first direction. Is formed so as to have a substantially L shape. The second direction intersects with the first direction, and it is particularly preferable that the second direction is substantially orthogonal to the first direction. The base portion 8 and the flange portion 9 of the second joining member 2 are integrated. Specifically, the flange portion 9 extends from the tip of the base portion 8 in the second direction along the base portion 5 of the first joining member 1.

第２の接合部材２におけるフランジ部９の外側面９ａは、第１の接合部材１における基部５の内側面５ａに面している。また、第２の接合部材２のフランジ部９における第１の方向の先端区域９ｂは、第１の接合部材１のフランジ部６に対して第１の方向に間隔を空けている。しかしながら、本発明はこれに限定されず、第２の接合部材におけるフランジ部の先端区域が、第１の接合部材におけるフランジ部に当接してもよい。 The outer side surface 9a of the flange portion 9 of the second joint member 2 faces the inner side surface 5a of the base portion 5 of the first joint member 1. Further, the front end region 9b of the flange portion 9 of the second joining member 2 in the first direction is spaced from the flange portion 6 of the first joining member 1 in the first direction. However, the present invention is not limited to this, and the tip end region of the flange portion of the second joining member may abut the flange portion of the first joining member.

特に、第２の接合部材２の基部８及びフランジ部９間に位置する端領域７の曲げ部分１０は湾曲して形成されていると好ましい。湾曲した曲げ部分１０の内周面１０ａには、曲げ部分１０の内周から外周に向かう方向に凹む複数の切欠部１０ｂが形成されると好ましい。切欠部１０ｂはまた、第２の接合部材２の外周方向に沿って延びると好ましい。なお、図１では、２つの切欠部１０ｂのみが示されている。複数の切欠部１０ｂは、湾曲しながら延びる曲げ部分１０の周方向に互いに間隔を空けて配置されると好ましい。 In particular, it is preferable that the bent portion 10 of the end region 7 located between the base portion 8 and the flange portion 9 of the second joining member 2 is curved. It is preferable that the inner peripheral surface 10a of the curved bent portion 10 be formed with a plurality of notches 10b that are recessed in a direction from the inner circumference to the outer circumference of the bent portion 10. It is preferable that the cutout portion 10b also extends along the outer peripheral direction of the second joining member 2. It should be noted that in FIG. 1, only two notches 10b are shown. It is preferable that the plurality of notches 10b are arranged at intervals in the circumferential direction of the bent portion 10 that extends while curving.

接着部３は、第２の接合部材２におけるフランジ部９の外側面９ａの一部に配置されており、特に、接着部３は、第２の接合部材２におけるフランジ部９の外側面９ａの全体に広がるように配置されると好ましい。さらに、接着部３は、第１の接合部材１における基部５の内側面５ａ及び第２の接合部材２におけるフランジ部９の外側面９ａに挟まれている。 The adhesive portion 3 is arranged on a part of the outer surface 9a of the flange portion 9 of the second joint member 2, and in particular, the adhesive portion 3 is formed on the outer surface 9a of the flange portion 9 of the second joint member 2. It is preferably arranged so as to spread over the whole. Further, the adhesive portion 3 is sandwiched between the inner side surface 5 a of the base portion 5 of the first joint member 1 and the outer side surface 9 a of the flange portion 9 of the second joint member 2.

このような接着部３が、第１の接合部材１における基部５の内側面５ａ及び第２の接合部材２におけるフランジ部９の外側面９ａに接触した状態で、第１及び第２の接合部材１，２の端領域４，７が接着部３によって接合されることとなる。 The first and second joining members in such a state that the adhesive portion 3 is in contact with the inner surface 5a of the base portion 5 of the first joining member 1 and the outer surface 9a of the flange portion 9 of the second joining member 2. The end regions 4 and 7 of 1 and 2 will be joined by the adhesion part 3.

［作用及び効果］
以上のように、本実施形態に係る異種材料接着構造によれば、接合体の熱膨張又は熱収縮時に生じる第１及び第２の接合部材１，２における変形量の差異に起因する荷重を、第２の接合部材２における基部８の撓みと、第１の接合部材１の基部５及び第２の接合部材２のフランジ部９を接合した接着部３の変形とによって効率的に吸収することができる。その結果、接合体の熱膨張又は熱収縮時に接合部分に加わる応力を効率的に分散させることができる。特に、第１の接合部材１が樹脂を用いて作製され、かつ第２の接合部材２が金属を用いて作製されているので、接合体の熱膨張又は熱収縮時に接合部分に加わる応力を効率的に分散させることができる。さらに、第１及び第２の接合部材１，２を接合する接着部３が、第１の接合部材１の基部５及びフランジ部６、並びに第２の接合部材２のフランジ部９によって隠れるので、接合体外部への接着部３の露出を防ぐことができる。すなわち、本実施形態に係る異種材料接着構造によれば、接合体が熱膨張又は熱収縮した時に接合部分に加わる応力を効率的に分散させることができると共に、接合体外部への接着部３の露出を防ぐことができる。 [Action and effect]
As described above, according to the dissimilar material bonding structure according to the present embodiment, the load caused by the difference in the amount of deformation in the first and second joining members 1 and 2 generated when the joined body is thermally expanded or contracted, The bending of the base portion 8 of the second joining member 2 and the deformation of the adhesive portion 3 joining the base portion 5 of the first joining member 1 and the flange portion 9 of the second joining member 2 can be efficiently absorbed. it can. As a result, it is possible to efficiently disperse the stress applied to the joint portion during thermal expansion or thermal contraction of the joined body. In particular, since the first joining member 1 is made of resin and the second joining member 2 is made of metal, the stress applied to the joining portion at the time of thermal expansion or thermal contraction of the joined body can be efficiently obtained. Can be dispersed. Furthermore, since the adhesive portion 3 that joins the first and second joining members 1 and 2 is hidden by the base portion 5 and the flange portion 6 of the first joining member 1 and the flange portion 9 of the second joining member 2, It is possible to prevent the adhesive portion 3 from being exposed to the outside of the bonded body. That is, according to the dissimilar material adhesive structure according to the present embodiment, it is possible to efficiently disperse the stress applied to the bonded portion when the bonded body is thermally expanded or thermally contracted, and to bond the bonding portion 3 to the outside of the bonded body. You can prevent exposure.

本実施形態に係る異種材料接着構造によれば、上述のような第１及び第２の接合部材１，２における変形量の差異に起因する荷重を、第２の接合部材２における基部８の撓み及び接着部３の変形によってさらに効率的に吸収することができる。 According to the dissimilar material adhesive structure according to the present embodiment, the load caused by the difference in the deformation amount between the first and second joining members 1 and 2 as described above is deflected by the bending of the base portion 8 of the second joining member 2. Moreover, the deformation of the adhesive portion 3 enables more efficient absorption.

本実施形態に係る異種材料接着構造によれば、接着部３が、第２の接合部材２におけるフランジ部９の外側面９ａの全体に広がるように配置される場合には、第１の接合部材１の変形に起因する荷重を、第２の接合部材２におけるフランジ部９の外側面９ａの全体によって受け止めることができる。 According to the dissimilar material bonding structure according to the present embodiment, when the bonding portion 3 is arranged so as to spread over the entire outer surface 9a of the flange portion 9 of the second bonding member 2, the first bonding member is formed. The load resulting from the deformation of No. 1 can be received by the entire outer surface 9 a of the flange portion 9 of the second joining member 2.

［第２実施形態］
本発明の第２実施形態に係る異種材料接着構造を含む接合体について説明する。 [Second Embodiment]
A bonded body including a dissimilar material bonding structure according to the second embodiment of the present invention will be described.

図２に示すように、本実施形態に係る異種材料接着構造を含む接合体は、第１の接合部材１と、第２の接合部材１１と、接着部１２とを備えている。本実施形態における第１の接合部材１の基本的な構成及び具体的な構成が、第１実施形態のものと同様である。本実施形態における第２の接合部材１１及び接着部１２の基本的な構成はそれぞれ、第１実施形態における第２の接合部材２及び接着部３の基本的な構成と同様であるが、本実施形態における第２の接合部材１１及び接着部１２の具体的な構成はそれぞれ、次に述べるように、第１実施形態における第２の接合部材２及び接着部３の具体的な構成とは異なっている。 As shown in FIG. 2, the bonded body including the dissimilar material bonding structure according to the present embodiment includes a first bonding member 1, a second bonding member 11, and a bonding portion 12. The basic configuration and the specific configuration of the first joining member 1 in this embodiment are the same as those in the first embodiment. The basic configurations of the second joining member 11 and the adhesive portion 12 in the present embodiment are the same as the basic configurations of the second joining member 2 and the adhesive portion 3 in the first embodiment, respectively, but the present embodiment The specific configurations of the second joining member 11 and the adhesive section 12 in the embodiment are different from the specific configurations of the second joining member 2 and the adhesive section 3 in the first embodiment, respectively, as described below. There is.

［具体的な構成］
第２の接合部材１１及び接着部１２の具体的な構成について説明する。図２に示すように、第２の接合部材１１の外周縁領域の少なくとも一部である端領域１３は、第２の方向（矢印Ｂにより示す）に延びる基部１４と、第１の方向に沿って配置されるフランジ部１５とを有するように曲がって形成されている。第２の方向は第１の方向（矢印Ａにより示す）と交差しており、特に、第２の方向は第１の方向と略直交すると好ましい。第２の接合部材１１における基部１４及びフランジ部１５は一体となっている。かかるフランジ部１５は、具体的には、第２の接合部材１１における基部１４の先端から延びる中央側壁１６と、該中央側壁１６の先端から折り返すように湾曲する折り返し区域１７と、該折り返し区域１７の先端から第１の接合部材１の基部５に沿って延びる端側壁１８とを有するように略Ｕ字形状に延びている。 [Specific configuration]
Specific configurations of the second joining member 11 and the adhesive portion 12 will be described. As shown in FIG. 2, the end region 13, which is at least a part of the outer peripheral edge region of the second joining member 11, has a base portion 14 extending in the second direction (indicated by an arrow B) and a first direction. Is formed so as to have a flange portion 15 that is arranged in a curved manner. The second direction intersects the first direction (indicated by arrow A), and it is particularly preferable that the second direction is substantially orthogonal to the first direction. The base portion 14 and the flange portion 15 of the second joining member 11 are integrated. Specifically, the flange portion 15 has a central side wall 16 extending from the tip of the base portion 14 of the second joining member 11, a folding area 17 that is curved so as to be folded from the tip of the central side wall 16, and the folding area 17. And a side wall 18 extending along the base 5 of the first joining member 1 from the tip end of the first joining member 1.

第２の接合部材１１のフランジ部１５における端側壁１８の外側面１８ａは、第１の接合部材１における基部５の内側面５ａに面している。第２の接合部材１１のフランジ部１５における第１の方向の先端区域、すなわち、折り返し区域１７は、第１の接合部材１のフランジ部６に対して第１の方向に間隔を空けている。しかしながら、本発明はこれに限定されず、第２の接合部材におけるフランジ部の折り返し区域は、第１の接合部材におけるフランジ部に当接してもよい。 The outer surface 18 a of the end side wall 18 of the flange portion 15 of the second joining member 11 faces the inner surface 5 a of the base portion 5 of the first joining member 1. The front end area of the flange portion 15 of the second joining member 11 in the first direction, that is, the folded-back area 17 is spaced from the flange portion 6 of the first joining member 1 in the first direction. However, the present invention is not limited to this, and the folded region of the flange portion of the second joining member may abut the flange portion of the first joining member.

特に、第２の接合部材１１の基部１４及びフランジ部１５の中央側壁１６間に位置する端領域１３の曲げ部分１９は湾曲して形成されると好ましい。湾曲した曲げ部分１９の内周面１９ａには、曲げ部分１９の内周から外周に向かう方向に凹む複数の切欠部１９ｂが形成されると好ましい。切欠部１９ｂはまた、第２の接合部材１１の外周方向に沿って延びると好ましい。なお、図２では、２つの切欠部１９ｂのみが示されている。複数の切欠部１９ｂは、湾曲しながら延びる曲げ部分１９の周方向に互いに間隔を空けて配置されると好ましい。 Particularly, it is preferable that the bent portion 19 of the end region 13 located between the base portion 14 of the second joining member 11 and the central side wall 16 of the flange portion 15 is curved. It is preferable that the inner peripheral surface 19a of the curved bent portion 19 be formed with a plurality of notches 19b that are recessed in a direction from the inner circumference to the outer circumference of the bent portion 19. It is preferable that the cutout portion 19b also extends along the outer peripheral direction of the second joining member 11. In addition, in FIG. 2, only two notches 19b are shown. It is preferable that the plurality of notches 19b are arranged at intervals in the circumferential direction of the bent portion 19 that extends while curving.

上述のように湾曲して形成された折り返し区域１７もまた、第２の接合部材１１における端領域１３の曲げ部分に相当する。湾曲した折り返し区域１７の内周面１７ａには、折り返し区域１７の内周から外周に向かう方向に凹む複数の切欠部１７ｂが形成されると好ましい。切欠部１７ｂはまた、第２の接合部材１１の外周方向に沿って延びると好ましい。なお、図２では、２つの切欠部１７ｂのみが示されている。複数の切欠部１７ｂは、湾曲しながら延びる折り返し区域１７の周方向に互いに間隔を空けて配置されると好ましい。 The folded-back area 17 formed by being curved as described above also corresponds to the bent portion of the end region 13 of the second joining member 11. It is preferable that a plurality of notches 17b are formed on the inner peripheral surface 17a of the curved folded-back area 17 so as to be recessed in a direction from the inner circumference to the outer circumference of the folded-back area 17. It is preferable that the cutout portion 17b also extends along the outer peripheral direction of the second joining member 11. In addition, in FIG. 2, only two notches 17b are shown. It is preferable that the plurality of notches 17b are arranged at intervals in the circumferential direction of the folded region 17 that extends while curving.

接着部１２は、第２の接合部材１１のフランジ部１５における端側壁１８の外側面１８ａの一部に配置されており、特に、接着部１２は、第２の接合部材１１のフランジ部１５における端側壁１８の外側面１８ａの全体に広がるように配置されると好ましい。さらに、接着部１２は、第１の接合部材１における基部５の内側面５ａ及び第２の接合部材１１におけるフランジ部１５の端側壁１８の外側面１８ａに挟まれている。 The adhesive portion 12 is arranged on a part of the outer surface 18a of the end side wall 18 of the flange portion 15 of the second joining member 11, and in particular, the adhesive portion 12 is formed on the flange portion 15 of the second joining member 11. It is preferably arranged so as to extend over the entire outer surface 18a of the end side wall 18. Further, the adhesive portion 12 is sandwiched between the inner side surface 5 a of the base portion 5 of the first joint member 1 and the outer side surface 18 a of the end side wall 18 of the flange portion 15 of the second joint member 11.

このような接着部１２が、第１の接合部材１における基部５の内側面５ａ及び第２の接合部材１１のフランジ部１５における端側壁１８の外側面１８ａに接触した状態で、第１及び第２の接合部材１，１１の端領域４，１３が接着部１２によって接合している。 With such an adhesive portion 12 in contact with the inner side surface 5a of the base 5 of the first joint member 1 and the outer side surface 18a of the end side wall 18 of the flange portion 15 of the second joint member 11, the first and the first joint members 1 The end regions 4 and 13 of the two joining members 1 and 11 are joined by the adhesive portion 12.

［作用及び効果］
以上のように、本実施形態に係る異種材料接着構造によれば、第１実施形態の第２の接合部材２における基部８の撓み及び接着部３の変形に基づく作用及び効果を除いて、第１実施形態の作用及び効果と同様の作用及び効果を得ることができる。 [Action and effect]
As described above, according to the dissimilar material adhesive structure according to the present embodiment, except for the action and effect based on the bending of the base portion 8 and the deformation of the adhesive portion 3 in the second joining member 2 of the first embodiment, The same operation and effect as those of the first embodiment can be obtained.

さらに、本実施形態に係る異種材料接着構造によれば、接合体の熱膨張又は熱収縮時に生じる第１及び第２の接合部材１，１１の変形量の差異に起因する荷重を、第２の接合部材１１における基部１４の撓み及び接着部１２の変形に加えて、第２の接合部材１１における略Ｕ字形状のフランジ部１５の変形によってさらに効率的に吸収することができる。 Furthermore, according to the dissimilar material adhesion structure according to the present embodiment, the load caused by the difference in the deformation amount of the first and second joining members 1 and 11 that occurs at the time of thermal expansion or thermal contraction of the joined body, In addition to the bending of the base portion 14 of the joining member 11 and the deformation of the adhesive portion 12, the deformation of the substantially U-shaped flange portion 15 of the second joining member 11 can be absorbed more efficiently.

［第３実施形態］
本発明の第３実施形態に係る異種材料接着構造を含む接合体について説明する。 [Third Embodiment]
A bonded body including a different material bonding structure according to the third embodiment of the present invention will be described.

図３に示すように、本実施形態に係る異種材料接着構造を含む接合体は、第１の接合部材２１と、第２の接合部材２２と、接着部２３とを備えている。本実施形態における第１の接合部材２１、第２の接合部材２２、及び接着部２３の基本的な構成はそれぞれ、第１実施形態における第１の接合部材１、第２の接合部材２、及び接着部３の基本的な構成と同様であるが、本実施形態における第１の接合部材２１、第２の接合部材２２、及び接着部２３の具体的な構成はそれぞれ、次に述べるように、第１実施形態における第１の接合部材１、第２の接合部材２、及び接着部３の具体的な構成と異なる。 As shown in FIG. 3, the bonded body including the dissimilar material bonding structure according to the present embodiment includes a first bonding member 21, a second bonding member 22, and a bonding portion 23. The basic configurations of the first joining member 21, the second joining member 22, and the adhesive section 23 in the present embodiment are the first joining member 1, the second joining member 2, and the second joining member 2 in the first embodiment, respectively. Although the basic configuration of the adhesive section 3 is the same, the specific configurations of the first joining member 21, the second joining member 22, and the adhesive section 23 in the present embodiment are respectively as follows. This is different from the specific configurations of the first joining member 1, the second joining member 2, and the adhesive section 3 in the first embodiment.

［具体的な構成］
第１の接合部材２１、第２の接合部材２２、及び接着部２３の具体的な構成について説明する。図３に示すように、第１の接合部材２１の外周縁領域の少なくとも一部である端領域２４は、第１の方向（矢印Ａにより示す）に延びる基部２５と、この基部２５における第１の方向の先端から略Ｌ字形状に延びるフランジ部２６とを有するように略Ｊ字形状に曲がって形成されている。第１の接合部材２１における基部２５及びフランジ部２６は一体となっている。かかるフランジ部２６は、基部２５の先端から第１の方向に交差する方向に延びる基端側区域２６ａと、この基端側区域２６ａにおける第１の方向に交差する方向の先端から延びると共に基部２５に対向する先端側区域２６ｂとを有している。特に、基端側区域２６ａは、第１の方向に略直交する方向に延びると好ましく、かつ先端側区域２６ｂは、第１の方向に略平行に延びると好ましい。 [Specific configuration]
Specific configurations of the first joining member 21, the second joining member 22, and the adhesive portion 23 will be described. As shown in FIG. 3, the end region 24, which is at least a part of the outer peripheral edge region of the first joining member 21, has a base portion 25 extending in the first direction (indicated by an arrow A) and a first portion of the base portion 25. And a flange portion 26 extending in a substantially L-shape from the end in the direction of. The base portion 25 and the flange portion 26 of the first joining member 21 are integrated. The flange portion 26 extends from a distal end of the base portion 25 in a direction intersecting with the first direction and a proximal end portion 26 a extending from the distal end of the proximal end portion 26 a in a direction intersecting with the first direction and the base portion 25. And a front end side region 26b opposed to. Particularly, it is preferable that the base end side area 26a extends in a direction substantially orthogonal to the first direction, and the tip end side area 26b extends substantially parallel to the first direction.

第２の接合部材２２の外周縁領域の少なくとも一部である端領域２７は、第２の方向（矢印Ｂにより示す）に延びる基部２８と、第１の方向に沿って配置されるフランジ部２９とを有するように略Ｌ字形状に曲がって形成されている。第２の方向は第１の方向と交差しており、特に、第２の方向は第１の方向と略直交すると好ましい。第２の接合部材２２における基部２８及びフランジ部２９は一体となっている。かかるフランジ部２９は、具体的には、基部２８における第２の方向の先端から第１の方向に沿って延びている。このような第１の接合部材２１の端領域２４には、その基部２５及びフランジ部２６により画定される凹状空間２４ａが形成されている。 The end region 27, which is at least a part of the outer peripheral region of the second joining member 22, has a base portion 28 extending in the second direction (indicated by the arrow B) and a flange portion 29 arranged along the first direction. Is formed so as to have a substantially L shape. The second direction intersects with the first direction, and it is particularly preferable that the second direction is substantially orthogonal to the first direction. The base portion 28 and the flange portion 29 of the second joining member 22 are integrated. Specifically, the flange portion 29 extends along the first direction from the tip of the base portion 28 in the second direction. In the end region 24 of the first joining member 21 as described above, a concave space 24 a defined by the base portion 25 and the flange portion 26 is formed.

第２の接合部材２２におけるフランジ部２９は、第１の接合部材２１における基部２５及びフランジ部２６の先端側区域２６ｂと第２の方向に間隔を空けている。しかしながら、本発明はこれに限定されず、第２の接合部材におけるフランジ部は、第１の接合部材における基部及びフランジ部の先端側区域のいずれか一方に当接してもよい。第２の接合部材２２のフランジ部２９における第１の方向の先端区域２９ａが、第１の接合部材２１の凹状空間２４ａの開口を通って凹状空間２４ａの内部に挿入されている。第２の接合部材２２のフランジ部２９における第１の方向の先端区域２９ａは、第１の接合部材２１におけるフランジ部２６の基端側区域２６ａに対して第１の方向に間隔を空けている。しかしながら、本発明はこれに限定されず、第２の接合部材におけるフランジ部における第１の方向の先端区域は、第１の接合部材におけるフランジ部の基端側区域に当接してもよい。 The flange portion 29 of the second joining member 22 is spaced in the second direction from the distal end side region 26b of the base portion 25 and the flange portion 26 of the first joining member 21. However, the present invention is not limited to this, and the flange portion of the second joining member may abut either one of the base portion of the first joining member and the tip side area of the flange portion. The front end area 29a of the flange portion 29 of the second joining member 22 in the first direction is inserted into the concave space 24a through the opening of the concave space 24a of the first joining member 21. The front end area 29a of the flange portion 29 of the second joining member 22 in the first direction is spaced from the proximal end side area 26a of the flange portion 26 of the first joining member 21 in the first direction. .. However, the present invention is not limited to this, and the front end region of the flange portion of the second joining member in the first direction may abut the base end side region of the flange portion of the first joining member.

第２の接合部材２２における基部２８及びフランジ部２９間に位置する端領域２７の曲げ部分３０は湾曲して形成されている。湾曲した曲げ部分３０の内周面３０ａには、曲げ部分３０の内周から外周に向かう方向に凹む複数の切欠部３０ｂが形成されている。切欠部３０ｂはまた、第２の接合部材２２の外周方向に沿って延びている。なお、図３では、２つの切欠部３０ｂのみが示されている。複数の切欠部３０ｂは、湾曲しながら延びる曲げ部分３０の周方向に互いに間隔を空けて配置されている。 The bent portion 30 of the end region 27 located between the base portion 28 and the flange portion 29 of the second joining member 22 is formed to be curved. On the inner peripheral surface 30a of the curved bent portion 30, a plurality of notches 30b are formed which are recessed in a direction from the inner circumference of the bent portion 30 toward the outer circumference. The notch 30b also extends along the outer peripheral direction of the second joining member 22. In addition, in FIG. 3, only two notches 30b are shown. The plurality of notches 30b are arranged at intervals in the circumferential direction of the bent portion 30 that extends while curving.

接着部２３は、第１の接合部材２１の凹状空間２４ａ内に配置されている。特に、接着部２３は、凹状空間２４ａの底側部分を占めるように配置されると好ましい。なお、凹状空間２４ａの底は、その開口に対向し、かつ第１の接合部材２１におけるフランジ部２６の基端側区域２６ａによって形成される。 The adhesive portion 23 is arranged in the concave space 24 a of the first joining member 21. In particular, the adhesive portion 23 is preferably arranged so as to occupy the bottom side portion of the concave space 24a. The bottom of the concave space 24a is formed by the base end side region 26a of the flange portion 26 of the first joining member 21 that faces the opening.

第２の接合部材２２のフランジ部２９における先端区域２９ａは、このような接着部２３に埋め込まれた状態で、第１及び第２の接合部材２１，２２の端領域２４，２７が接着部２３によって接合されている。 The tip region 29a of the flange portion 29 of the second joining member 22 is embedded in such an adhesive portion 23, and the end regions 24 and 27 of the first and second joining members 21 and 22 are attached to the adhesive portion 23. Are joined by.

［作用及び効果］
以上のように、本実施形態に係る異種材料接着構造によれば、接合体の熱膨張又は熱収縮時に生じる第１及び第２の接合部材２１，２２の変形量の差異に起因する荷重を、第１の接合部材２１における略Ｌ字形状のフランジ部２６の変形と、第２の接合部材２２における基部２８の撓みと、第１の接合部材２１における凹状空間２４ａに配置されると共に第２の接合部材２２におけるフランジ部２９の先端区域２９ａを埋め込んだ接着部２３の変形とによって効率的に吸収することができる。その結果、接合体の熱膨張又は熱収縮時に接合部分に加わる応力を効率的に分散させることができる。特に、第１の接合部材２１がプラスチック製であり、かつ第２の接合部材２２が金属製であるので、接合体の熱膨張又は熱収縮時に接合部分に加わる応力をさらに効率的に分散させることができる。さらに、第１及び第２の接合部材２１，２２を接合した接着部２３が、第１の接合部材２１の基部２５及びフランジ部２６によって隠れるので、接合体外部への接着部２３の露出を防ぐことができる。すなわち、本実施形態に係る異種材料接着構造によれば、接合体が熱膨張又は熱収縮した時に接合部分に加わる応力を効率的に分散させることができると共に、接合体外部への接着部２３の露出を防ぐことができる。 [Action and effect]
As described above, according to the dissimilar material adhesive structure according to the present embodiment, the load caused by the difference in the amount of deformation of the first and second joining members 21 and 22 that occurs at the time of thermal expansion or thermal contraction of the joined body, The substantially L-shaped flange portion 26 of the first joining member 21 is deformed, the base portion 28 of the second joining member 22 is bent, and the flange portion 26 of the first joining member 21 is arranged in the concave space 24a and the second portion is formed. It can be efficiently absorbed by the deformation of the adhesive portion 23 in which the tip end region 29a of the flange portion 29 of the joining member 22 is embedded. As a result, it is possible to efficiently disperse the stress applied to the joint portion during thermal expansion or thermal contraction of the joined body. In particular, since the first joining member 21 is made of plastic and the second joining member 22 is made of metal, it is possible to more efficiently disperse the stress applied to the joining portion during thermal expansion or contraction of the joined body. You can Further, since the adhesive portion 23 that joins the first and second joining members 21 and 22 is hidden by the base portion 25 and the flange portion 26 of the first joining member 21, it is possible to prevent the adhesive portion 23 from being exposed to the outside of the joined body. be able to. That is, according to the dissimilar material adhesive structure according to the present embodiment, it is possible to efficiently disperse the stress applied to the joint portion when the joint body thermally expands or contracts, and at the same time, to bond the adhesive portion 23 to the outside of the joint body. You can prevent exposure.

本実施形態に係る異種材料接着構造によれば、上述のような第１及び第２の接合部材２１，２２の変形量の差異に起因する荷重を、第１の接合部材２１におけるフランジ部２６の変形、第２の接合部材２２における基部２８の撓み、及び接着部２３の変形によってさらに効率的に吸収することができる。 According to the dissimilar material bonding structure according to the present embodiment, the load caused by the difference in the deformation amount of the first and second joining members 21 and 22 as described above is applied to the flange portion 26 of the first joining member 21. The deformation, the bending of the base portion 28 of the second joining member 22, and the deformation of the adhesive portion 23 can be absorbed more efficiently.

本実施形態に係る異種材料接着構造によれば、第２の接合部材２２の端領域２７における曲げ部分３０の複数の切欠部３０ｂによって、かかる曲げ部分３０を形成した際に生じる残留応力を効率的に分散させることができる。 According to the dissimilar material adhesion structure according to the present embodiment, the residual stress generated when the bending portion 30 is formed is efficiently generated by the plurality of notches 30b of the bending portion 30 in the end region 27 of the second joining member 22. Can be dispersed in

［第４実施形態］
本発明の第４実施形態に係る異種材料接着構造を含む接合体について説明する。 [Fourth Embodiment]
A bonded body including a dissimilar material adhesive structure according to the fourth embodiment of the present invention will be described.

図４に示すように、本実施形態に係る異種材料接着構造を含む接合体は、第１の接合部材２１と、第２の接合部材３１と、接着部２３とを備えている。本実施形態における第１の接合部材２１及び接着部２３の基本的な構成及び具体的な構成が、第３実施形態のものと同様である。本実施形態における第２の接合部材３１の基本的な構成は、第３実施形態における第２の接合部材２２の基本的な構成と同様であるが、本実施形態における第２の接合部材３１の具体的な構成はそれぞれ、次に述べるように、第３実施形態における第２の接合部材２２の具体的な構成と異なる。 As shown in FIG. 4, the bonded body including the dissimilar material bonding structure according to the present embodiment includes a first bonding member 21, a second bonding member 31, and a bonding portion 23. The basic and specific configurations of the first joining member 21 and the adhesive portion 23 in this embodiment are the same as those in the third embodiment. The basic configuration of the second joining member 31 in the present embodiment is similar to the basic configuration of the second joining member 22 in the third embodiment, but the second joining member 31 of the present embodiment is the same. Each specific configuration is different from the specific configuration of the second joining member 22 in the third embodiment, as described below.

［具体的な構成］
第２の接合部材３１の具体的な構成について説明する。図４に示すように、第２の接合部材３１の外周縁領域の少なくとも一部である端領域３２は、第２の方向（矢印Ｂにより示す）に延びる基部３３と、第１の方向に沿って配置されるフランジ部３４とを有するように曲がって形成されている。第２の方向は第１の方向（矢印Ａにより示す）と交差しており、特に、第２の方向は第１の方向と略直交すると好ましい。第２の接合部材３１における基部３３及びフランジ部３４は一体となっている。かかるフランジ部３４は、具体的には、第２の接合部材３１における基部３３の先端から延びる中央側壁３５と、該中央側壁３５の先端から折り返すように湾曲する折り返し区域３６と、該折り返し区域３６の先端から第１の方向に沿って延びる端側壁３７とを有するように略Ｕ字形状に延びている。 [Specific configuration]
A specific configuration of the second joining member 31 will be described. As shown in FIG. 4, the end region 32, which is at least a part of the outer peripheral region of the second joining member 31, has a base portion 33 extending in the second direction (indicated by an arrow B) and a first direction. Is formed so as to have a flange portion 34 that is arranged in a curved manner. The second direction intersects the first direction (indicated by arrow A), and it is particularly preferable that the second direction is substantially orthogonal to the first direction. The base portion 33 and the flange portion 34 of the second joining member 31 are integrated. Specifically, the flange portion 34 includes a central side wall 35 extending from the tip of the base portion 33 of the second joining member 31, a turn-back area 36 that is bent so as to turn back from the tip of the center side wall 35, and the turn-back area 36. And an end side wall 37 that extends in the first direction from the tip of the.

第２の接合部材３１におけるフランジ部３４の端側壁３７は、第１の接合部材２１における基部２５と第２の方向に間隔を空けており、かつ第２の接合部材３１におけるフランジ部３４の中央側壁３５は、第１の接合部材２１におけるフランジ部２６の先端側区域２６ｂと第２の方向に間隔を空けている。しかしながら、本発明はこれに限定されず、第２の接合部材におけるフランジ部の端側壁が、第１の接合部材における基部と当接してもよい。また、第２の接合部材３１におけるフランジ部３４の中央側壁３５が、第１の接合部材２１におけるフランジ部２６の先端側区域２６ｂと当接してもよい。第２の接合部材３１のフランジ部３４における第１の方向の先端区域、すなわち、折り返し区域３６が、第１の接合部材２１の凹状空間２４ａの開口を通って凹状空間２４ａの内部に挿入されている。さらに、第２の接合部材３１のフランジ部３４における折り返し区域３６は、第１の接合部材２１におけるフランジ部２６の基端側区域２６ａに対して第１の方向に間隔を空けている。しかしながら、本発明はこれに限定されず、第２の接合部材におけるフランジ部の折り返し区域は、第１の接合部材におけるフランジ部の基端側区域に当接してもよい。 The end side wall 37 of the flange portion 34 of the second joining member 31 is spaced from the base portion 25 of the first joining member 21 in the second direction, and is at the center of the flange portion 34 of the second joining member 31. The side wall 35 is spaced in the second direction from the tip side region 26b of the flange portion 26 of the first joining member 21. However, the present invention is not limited to this, and the end sidewall of the flange portion of the second joining member may abut the base portion of the first joining member. Further, the central side wall 35 of the flange portion 34 of the second joining member 31 may abut on the tip side area 26b of the flange portion 26 of the first joining member 21. The front end region of the flange portion 34 of the second joining member 31 in the first direction, that is, the folded-back region 36, is inserted into the concave space 24a through the opening of the concave space 24a of the first joining member 21. There is. Further, the folded-back area 36 of the flange portion 34 of the second joining member 31 is spaced in the first direction from the proximal end side area 26a of the flange portion 26 of the first joining member 21. However, the present invention is not limited to this, and the folded-back area of the flange portion of the second joining member may abut on the base end side area of the flange portion of the first joining member.

第２の接合部材３１における基部３３及びフランジ部３４の中央側壁３５間に位置する端領域３２の曲げ部分３８は湾曲して形成されている。湾曲した曲げ部分３８の内周面３８ａには、曲げ部分３８の内周から外周に向かう方向に凹む複数の切欠部３８ｂが形成されている。切欠部３８ｂはまた、第２の接合部材３１の外周方向に沿って延びている。なお、図４では、２つの切欠部３８ｂのみが示されている。複数の切欠部３８ｂは、湾曲しながら延びる曲げ部分３８の周方向に互いに間隔を空けて配置されている。 The bent portion 38 of the end region 32, which is located between the base portion 33 and the central side wall 35 of the flange portion 34 of the second joining member 31, is formed to be curved. On the inner peripheral surface 38a of the curved bent portion 38, a plurality of notches 38b are formed which are recessed in a direction from the inner circumference of the bent portion 38 toward the outer circumference. The cutout portion 38b also extends along the outer peripheral direction of the second joining member 31. In addition, in FIG. 4, only two notches 38b are shown. The plurality of cutout portions 38b are arranged at intervals in the circumferential direction of the bent portion 38 that extends while curving.

上述のように湾曲して形成された折り返し区域３６もまた、第２の接合部材３１における端領域３２の曲げ部分に相当する。湾曲した折り返し区域３６の内周面３６ａには、折り返し区域３６の内周から外周に向かう方向に凹む複数の切欠部３６ｂが形成されている。切欠部３６ｂはまた、第２の接合部材３１の外周方向に沿って延びている。なお、図５では、２つの切欠部３６ｂのみが示されている。複数の切欠部３６ｂは、湾曲しながら延びる折り返し区域３６の周方向に互いに間隔を空けて配置されている。 The folded-back region 36 formed by being curved as described above also corresponds to the bent portion of the end region 32 of the second joining member 31. On the inner peripheral surface 36a of the curved folded-back area 36, a plurality of notches 36b are formed which are recessed in the direction from the inner circumference to the outer circumference of the folded-back area 36. The cutout portion 36b also extends along the outer peripheral direction of the second joining member 31. In addition, in FIG. 5, only two notches 36b are shown. The plurality of cutout portions 36b are arranged at intervals in the circumferential direction of the folded region 36 that extends while curving.

第２の接合部材３１のフランジ部３４における折り返し区域３６が、このような接着部２３に埋め込まれた状態で、第１及び第２の接合部材２１，３１の端領域２４，３２が接着部２３によって接合されている。 With the folded region 36 of the flange portion 34 of the second joining member 31 embedded in such an adhesive portion 23, the end regions 24 and 32 of the first and second joining members 21 and 31 are attached to the adhesive portion 23. Are joined by.

［作用及び効果］
以上のように、本実施形態に係る異種材料接着構造によれば、第３実施形態の第１の接合部材２１におけるフランジ部２６の変形、第２の接合部材２２における基部２８の撓み、及び接着部２３の変形に基づく作用及び効果を除いて、第３実施形態の作用及び効果と同様の作用及び効果を得ることができる。 [Action and effect]
As described above, according to the dissimilar material bonding structure according to the present embodiment, the deformation of the flange portion 26 of the first joining member 21 of the third embodiment, the bending of the base portion 28 of the second joining member 22, and the bonding. Except for the action and effect based on the deformation of the portion 23, the same action and effect as those of the third embodiment can be obtained.

さらに、本実施形態に係る異種材料接着構造によれば、接合体の熱膨張又は熱収縮時に生じる第１及び第２の接合部材２１，３１の変形量の差異に起因する荷重を、第１の接合部材２１におけるフランジ部２６の変形、第２の接合部材３１における基部３３の撓み、並びに接着部２３の変形に加えて、第２の接合部材３１における略Ｕ字形状のフランジ部３４の変形によってさらに効率的に吸収することができる。 Furthermore, according to the dissimilar material adhesion structure according to the present embodiment, the load caused by the difference in the amount of deformation of the first and second joining members 21 and 31 that occurs at the time of thermal expansion or thermal contraction of the joined body is reduced by the first load. In addition to the deformation of the flange portion 26 of the joining member 21, the bending of the base portion 33 of the second joining member 31, and the deformation of the adhesive portion 23, the substantially U-shaped flange portion 34 of the second joining member 31 is deformed. It can be absorbed more efficiently.

ここまで本発明の実施形態について説明したが、本発明は上述の実施形態に限定されるものではなく、本発明は、その技術的思想に基づいて変形及び変更可能である。 Although the embodiments of the present invention have been described so far, the present invention is not limited to the above-described embodiments, and the present invention can be modified and changed based on the technical idea thereof.

１ 第１の接合部材、２ 第２の接合部材、３ 接着部、４ 端領域、５ 基部、６ フランジ部、７ 端領域、８ 基部、９ フランジ部、９ａ 外側面、９ｂ 先端区域、１０ 曲げ部分、１０ｂ 切欠部
１１ 第２の接合部材、１２ 接着部、１３ 端領域、１４ 基部、１５ フランジ部、１６ 中央側壁、１７ 折り返し区域、１７ｂ 切欠部、１８ 端側壁、１８ａ 外側面、１９ 曲げ部分、１９ｂ 切欠部
２１ 第１の接合部材、２２ 第２の接合部材、２３ 接着部、２４ 端領域、２４ａ 凹状空間、２５ 基部、２６ フランジ部、２７ 端領域、２８ 基部、２９ フランジ部、２９ａ 先端区域、３０ 曲げ部分、３０ｂ 切欠部
３１ 第２の接合部材、３２ 端領域、３３ 基部、３４ フランジ部、３６ 折り返し区域、３６ｂ 切欠部、３８ 曲げ部分、３８ｂ 切欠部
Ａ，Ｂ 矢印 DESCRIPTION OF SYMBOLS 1 1st joining member, 2 2nd joining member, 3 Adhesive part, 4 end area, 5 base part, 6 flange part, 7 end area, 8 base part, 9 flange part, 9a outer side surface, 9b tip region, 10 bending Part, 10b Cutout part 11 Second joining member, 12 Adhesive part, 13 End region, 14 Base part, 15 Flange part, 16 Central side wall, 17 Folding area, 17b Cutout part, 18 End side wall, 18a Outer side surface, 19 Bent part , 19b Notch 21 First joining member, 22 Second joining member, 23 Adhesive part, 24 End region, 24a Concave space, 25 Base, 26 Flange part, 27 End region, 28 Base part, 29 Flange part, 29a Tip Area, 30 Bending portion, 30b Cutout portion 31 Second joining member, 32 End region, 33 Base portion, 34 Flange portion, 36 Folding area, 36b Cutout portion, 38 Bending portion, 38b Cutout portion A, B Arrow

Claims (2)

互いに異なる熱膨張率を有する第１及び第２の接合部材を備え、
前記第１の接合部材がプラスチック製であり、かつ前記第２の接合部材が板金製であり、
前記第１及び第２の接合部材が互いに対向した状態で第１の方向に沿って配置されており、
前記第１及び第２の接合部材の端領域が接着剤を用いて互いに接合されている、異種材料接着構造において、
前記第１の接合部材の端領域が、前記第１の方向に延びる基部と、該基部における前記第１の方向の先端からＬ字形状に延びるフランジ部とを有するようにＪ字形状に曲がっており、
前記第２の接合部材の端領域が、前記第１の方向と交差する第２の方向に延びる基部と、前記第１の方向に沿って配置されるフランジ部とを有するように曲がっており、
前記第２の接合部材のフランジ部が、前記第２の接合部材の基部における前記第２の方向の先端からＵ字形状に延びており、
前記第２の接合部材のフランジ部と前記第１の接合部材の基部とが互いに間隔を空けるように離れており、
前記第２の接合部材のフランジ部における前記第１の方向のＵ字形状の先端区域が、前記第１の接合部材における基部及びフランジ部により画定される凹状空間の開口を通って該凹状空間の内部に挿入されており、
前記接着剤を含む接着部が前記凹状空間に配置され、かつ前記第２の接合部材のフランジ部におけるＵ字形状の先端区域が前記接着部に埋め込まれた状態で、前記第１及び第２の接合部材の端領域が前記接着部によって接合されている、異種材料接着構造。 A first joining member and a second joining member having different thermal expansion coefficients,
The first joining member is made of plastic, and the second joining member is made of sheet metal;
Are arranged along a first direction in a state where the first and second joint members are opposed to each other,
In a dissimilar material adhesive structure, wherein the end regions of the first and second joining members are joined together using an adhesive,
The end region of the first joining member is bent in a J shape so as to have a base portion extending in the first direction and a flange portion extending in an L shape from a tip of the base portion in the first direction. Cage,
The end region of the second joining member is curved so as to have a base portion extending in a second direction intersecting the first direction and a flange portion arranged along the first direction,
A flange portion of the second joining member extends in a U-shape from a tip of the base portion of the second joining member in the second direction,
The flange portion of the second joining member and the base portion of the first joining member are spaced apart from each other,
A U-shaped tip region of the flange portion of the second joining member in the first direction passes through an opening of the recessed space defined by the base portion and the flange portion of the first joining member to form the concave space. It is inserted inside,
With the adhesive portion including the adhesive disposed in the concave space, and the U-shaped tip region of the flange portion of the second joining member embedded in the adhesive portion, the first and second adhesive members are formed. The dissimilar material adhesive structure, wherein the end regions of the joining member are joined by the adhesive portion. 前記第２の接合部材の端領域における曲げ部分に複数の切欠部が形成されている、請求項１に記載の異種材料接着構造。
The dissimilar material adhesive structure according to claim 1 , wherein a plurality of notches are formed in a bent portion in an end region of the second joining member.
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