JP2019196803A - Connection structure and connection method for plate - Google Patents

Connection structure and connection method for plate Download PDF

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JP2019196803A
JP2019196803A JP2018091137A JP2018091137A JP2019196803A JP 2019196803 A JP2019196803 A JP 2019196803A JP 2018091137 A JP2018091137 A JP 2018091137A JP 2018091137 A JP2018091137 A JP 2018091137A JP 2019196803 A JP2019196803 A JP 2019196803A
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plate
adhesive
reinforced resin
pair
fiber reinforced
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JP7398186B2 (en
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翔平 倉井
Shohei Kurai
翔平 倉井
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Renault SAS
Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Abstract

To provide a plate connection structure capable of suppressing deterioration in strength due to the delamination or crack of a fiber-reinforced resin plate.SOLUTION: A pair of plates (2A, 2B), which are fiber reinforced resin plates (2A) formed by infiltrating a resin into a fiber sheet in which at least one is laminated, are overlapped and connected by a self-piercing rivet (1A). An adhesive (11) is infiltrated into a contact part of the fiber reinforced resin plate (2A) that contacts with the outer peripheral surface of a body part (101A) of the self-piercing rivet (1A).SELECTED DRAWING: Figure 6

Description

本発明は、板材の接合構造及び接合方法に関するものである。   The present invention relates to a joining structure and joining method for plate members.

少なくとも一方が繊維樹脂強化板である一対の板材をセルフピアスリベット（Self-Piercing Rivet：ＳＰＲ）で接合することが研究されている（下記特許文献１）。ここでの繊維樹脂強化板は、積層された繊維シートに樹脂を含浸させて形成されている。   It has been studied to join a pair of plate materials, at least one of which is a fiber resin reinforced plate, using a self-piercing rivet (SPR) (Patent Document 1 below). Here, the fiber resin reinforced plate is formed by impregnating a laminated fiber sheet with a resin.

特許６１２０３８４号公報Japanese Patent No. 6120384

ＳＰＲが繊維樹脂強化板に打ち込まれる（圧入される）と、穿孔された接合孔の内周面において層間剥離が発生しやすい。また、打ち込み時に発生した層間剥離が、その後に作用する負荷によって亀裂に進展する場合もある。層間剥離や亀裂は、繊維樹脂強化板の強度を低下させる。ひいては、一対の板材の接合強度も低下する。   When SPR is driven (press-fit) into the fiber resin reinforced plate, delamination tends to occur on the inner peripheral surface of the drilled joint hole. In addition, delamination that occurs during driving may develop into a crack due to a load acting thereafter. Delamination and cracks reduce the strength of the fiber resin reinforced plate. As a result, the bonding strength of the pair of plate members also decreases.

本発明の目的は、少なくとも一方が繊維樹脂強化板である一対の板材をＳＰＲで接合する場合に、繊維樹脂強化板の層間剥離や亀裂による強度低下を防止することのできる、板材の接合構造及び接合方法を提供することである。   An object of the present invention is to provide a joining structure of plate materials capable of preventing strength reduction due to delamination or cracking of a fiber resin reinforced plate when at least one of them is a fiber resin reinforced plate joined by SPR, and It is to provide a bonding method.

本発明の第１の特徴に係る板材の接合構造では、一対の板材（少なくとも一方は、積層された繊維シートに樹脂を浸潤させて形成された繊維強化樹脂板）が重ね合わせられ、重ね合わされた一対の板材がセルフピアスリベットで接合されている。この接合構造では、頭部フランジと頭部フランジから立設された胴部とを有するセルフピアスリベットの胴部の外周面と接触する繊維強化樹脂板の接触部に接着剤が浸潤している。   In the joining structure of plate members according to the first feature of the present invention, a pair of plate members (at least one is a fiber-reinforced resin plate formed by infiltrating a resin into a laminated fiber sheet) are overlapped and overlapped. A pair of plate materials are joined by self-piercing rivets. In this joining structure, the adhesive is infiltrated into the contact portion of the fiber reinforced resin plate that comes into contact with the outer peripheral surface of the body portion of the self-piercing rivet having the head flange and the body portion erected from the head flange.

本発明の第２の特徴に係る板材の接合構造では、まず、一対の板材（少なくとも一方は、積層された繊維シートに樹脂を浸潤させて形成された繊維強化樹脂板）が重ね合わせられる。そして、重ね合わされた一対の板材に接着剤を備えたセルフピアスリベットを打ち込んで、一対の板材を接合する。セルフピアスリベットを打ち込むことで、頭部フランジと頭部フランジから立設された胴部とを有するセルフピアスリベットの胴部の外周面と接触する繊維強化樹脂板の接触部に接着剤が浸潤される。   In the joining structure of plate materials according to the second feature of the present invention, first, a pair of plate materials (at least one is a fiber-reinforced resin plate formed by infiltrating a resin into a laminated fiber sheet) is overlapped. And a self-piercing rivet provided with an adhesive is driven into the pair of stacked plate members to join the pair of plate materials. By driving the self-piercing rivet, the adhesive is infiltrated into the contact portion of the fiber reinforced resin plate that comes into contact with the outer peripheral surface of the body portion of the self-piercing rivet having the head flange and the body portion erected from the head flange. The

本発明によれば、セルフピアスリベットの胴部と接触する繊維強化樹脂板の接触部に接着剤が浸潤されるので、接触部が接着剤によって補強される。また、層間剥離が生じたとしても接着剤によって剥離部分が接着される。従って、層間剥離に起因する亀裂も抑止される。この結果、繊維強化樹脂板の層間剥離や亀裂による強度低下を抑止することができる。   According to the present invention, the adhesive is infiltrated into the contact portion of the fiber reinforced resin plate that comes into contact with the body portion of the self-piercing rivet, so that the contact portion is reinforced by the adhesive. Further, even if delamination occurs, the peeled portion is adhered by an adhesive. Therefore, cracks due to delamination are also suppressed. As a result, strength reduction due to delamination or cracking of the fiber reinforced resin plate can be suppressed.

図１は、第１実施形態に係る板材の接合方法の工程（ＳＰＲ打ち込み前）を示す断面図である。FIG. 1 is a cross-sectional view showing a process (before SPR driving) of the method for joining plate members according to the first embodiment. 図２は、第１実施形態に係る板材の接合方法の工程（ＳＰＲ打ち込み後）（第１実施形態に係る接合構造）を示す断面図である。FIG. 2 is a cross-sectional view showing a process (after SPR implantation) (joining structure according to the first embodiment) of the joining method of plate members according to the first embodiment. 図３は、第２実施形態に係る板材の接合方法の工程（ＳＰＲ打ち込み前）を示す断面図である。FIG. 3 is a cross-sectional view showing a step (before SPR driving) of the method for joining plate members according to the second embodiment. 図４は、第２実施形態に係る板材の接合方法の工程（ＳＰＲ打ち込み後）（第２実施形態に係る接合構造）を示す断面図である。FIG. 4 is a cross-sectional view showing a step (after SPR implantation) (joining structure according to the second embodiment) of the plate material joining method according to the second embodiment. 図５は、第３実施形態に係る板材の接合方法の工程（ＳＰＲ打ち込み前）を示す断面図である。FIG. 5: is sectional drawing which shows the process (before SPR driving | operation) of the joining method of the board | plate material which concerns on 3rd Embodiment. 図６は、第３実施形態に係る板材の接合方法の工程（ＳＰＲ打ち込み後）（第３実施形態に係る接合構造）を示す断面図である。FIG. 6 is a cross-sectional view showing a process (after SPR implantation) of the plate material joining method according to the third embodiment (joining structure according to the third embodiment).

以下、図面を参照しつつ実施形態を説明する。なお、同一又は同等の構成部分には同一の符号を付してそれらの詳しい説明を省略する。   Hereinafter, embodiments will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or equivalent component, and those detailed description is abbreviate | omitted.

（第１実施形態）
図１に示されるように、本実施形態では、セルフピアスリベット（ＳＰＲ）１Ａで接合される一対の板材は、一対の繊維強化樹脂板２Ａである。ＳＰＲ１Ａは、本体１０Ａと接着剤１１とを備えている。本体１０Ａは、通常のＳＰＲと同様であり、アルミニウム又はアルミニウム合金によって一体的に形成されている。ＳＰＲ１Ａは、頭部フランジ１００と胴部１０１Ａとを備えている。頭部フランジ１００は円板形状を有し、胴部１０１Ａは内部が空洞の中空円筒形状を有している。胴部１０１Ａは、頭部フランジ１００の一面から立設されている。胴部１０１Ａの中心軸は頭部フランジ１００の中心を通る。胴部１０１Ａ内の空洞は先端に向けて徐々に拡径されており、胴部１０１Ａの先端はテーパ形状を有している。 (First embodiment)
As shown in FIG. 1, in this embodiment, the pair of plate members joined by the self-piercing rivet (SPR) 1 </ b> A is a pair of fiber reinforced resin plates 2 </ b> A. The SPR 1A includes a main body 10A and an adhesive 11. The main body 10A is the same as a normal SPR and is integrally formed of aluminum or an aluminum alloy. The SPR 1A includes a head flange 100 and a trunk portion 101A. The head flange 100 has a disk shape, and the body 101A has a hollow cylindrical shape with a hollow inside. The trunk portion 101 </ b> A is erected from one surface of the head flange 100. The central axis of the trunk portion 101 </ b> A passes through the center of the head flange 100. The diameter of the body 101A is gradually increased toward the tip, and the tip of the body 101A has a tapered shape.

本実施形態のＳＰＲ１Ａは、胴部１０１Ａの外周面に接着剤１１が塗布されている。追って詳しく説明するが、この接着剤１１は、ＳＰＲ１Ａが繊維強化樹脂板２Ａに打ち込まれる（圧入される）と、ＳＰＲ１Ａによって繊維強化樹脂板２Ａに穿孔された接合孔２０Ａの内周面から、繊維強化樹脂板２Ａに浸潤する。なお、接着剤１１としては、熱可塑性樹脂や熱硬化性樹脂の他、空気中の酸素や水分によって硬化する接着剤や、含有されている溶剤が揮発することで硬化する接着剤など、どのような接着剤でも使用できる。ただし、空気中の酸素や水分によって硬化する接着剤や、含有されている溶剤が揮発することで硬化する接着剤は、ＳＰＲ１Ａを繊維強化樹脂板２Ａに打ち込む直前に接着剤１１を胴部１０１Ａの外周面に塗布する必要がある。   In the SPR 1A of the present embodiment, the adhesive 11 is applied to the outer peripheral surface of the body portion 101A. As will be described in detail later, when the SPR 1A is driven (press-fitted) into the fiber reinforced resin plate 2A, the adhesive 11 is formed from the inner peripheral surface of the bonding hole 20A drilled in the fiber reinforced resin plate 2A by the SPR 1A. Infiltrate the reinforced resin plate 2A. In addition to the thermoplastic resin and the thermosetting resin, the adhesive 11 may be an adhesive that is cured by oxygen or moisture in the air, an adhesive that is cured by volatilization of the contained solvent, or the like. Any adhesive can be used. However, an adhesive that cures by oxygen or moisture in the air or an adhesive that cures when the contained solvent volatilizes the adhesive 11 immediately before the SPR1A is driven into the fiber reinforced resin plate 2A. It is necessary to apply to the outer peripheral surface.

本実施形態の接着剤１１は、熱可塑性樹脂又は熱硬化性樹脂である。このため、接着剤１１は、予めＳＰＲ１Ａの胴部１０１Ａの外周面に塗布されている。熱可塑性樹脂又は熱硬化性樹脂製の接着剤１１は、ＳＰＲ１Ａの一対の板材（繊維強化樹脂板２Ａ）への打ち込み時に受ける圧力や摩擦による発熱によって軟化又は液化する。   The adhesive 11 of this embodiment is a thermoplastic resin or a thermosetting resin. For this reason, the adhesive 11 is previously applied to the outer peripheral surface of the trunk portion 101A of the SPR 1A. The adhesive 11 made of a thermoplastic resin or a thermosetting resin is softened or liquefied by the pressure received when the SPR 1A is driven into the pair of plate members (fiber reinforced resin plate 2A) or heat generated by friction.

上述したＳＰＲ１Ａが打ち込まれる二枚の繊維強化樹脂板２Ａは、同一のものである。本実施形態の各繊維強化樹脂板２Ａは、積層された炭素繊維シートに樹脂を浸潤させて形成されたＣＦＲＰ（Carbon Fiber Reinforced Plastic）板である。ただし、ＳＰＲ１Ａによって接合される二枚の繊維強化樹脂板は、異なる仕様（厚さや繊維シートの織り方等）を有していてもよい。なお、接合される二枚の繊維強化樹脂板２Ａの繊維シートの配向方向は、目的に応じて決定される（二枚の繊維強化樹脂板２Ａの配向方向は同じでも異なっていてもよい）。ＳＰＲ１Ａの仕様は、接合する一対の板材に応じて適切なものが選択される（長さや外径、及び、胴部１０１Ａ内の空洞の深さ等）。   The two fiber reinforced resin plates 2A into which the SPR 1A described above is driven are the same. Each fiber reinforced resin plate 2A of the present embodiment is a CFRP (Carbon Fiber Reinforced Plastic) plate formed by infiltrating a resin into a laminated carbon fiber sheet. However, the two fiber reinforced resin plates joined by SPR1A may have different specifications (thickness, weave of the fiber sheet, etc.). The orientation direction of the fiber sheets of the two fiber reinforced resin plates 2A to be joined is determined according to the purpose (the orientation directions of the two fiber reinforced resin plates 2A may be the same or different). As the specification of SPR1A, an appropriate one is selected according to the pair of plate materials to be joined (the length, the outer diameter, the depth of the cavity in the trunk portion 101A, etc.).

上述したＳＰＲ１Ａによって一対の繊維強化樹脂板２Ａを接合するには、一対の繊維強化樹脂板２Ａを重ね合わせ、重ね合わされた繊維強化樹脂板２ＡにＳＰＲ１Ａを打ち込む（圧入する）。ＳＰＲ１Ａの打ち込み後の接合構造を図２に示す。ＳＰＲ１Ａの打ち込み時には、一対の繊維強化樹脂板２Ａの反対側には治具３Ａが配置され、打ち込み器具（装置）によって頭部フランジ１００が押圧される。治具３Ａは、一対の繊維強化樹脂板２Ａを反対側で支持するとともに、打ち込まれたＳＰＲ１Ａの先端を変形させる。ＳＰＲ１Ａの先端は、治具３Ａによって外側に拡げられ、繊維強化樹脂板２Ａは頭部フランジ１００と外側に拡げられた胴部１０１Ａの先端とによって挟み込まれる。治具３Ａには、胴部１０１Ａの先端を外側に拡げる凹円穴３０Ａが形成されている。凹円穴３０Ａの中央には、胴部１０１Ａの先端の外側への拡張を助ける凸部３１Ａが形成されている。   In order to join the pair of fiber reinforced resin plates 2A by the SPR 1A described above, the pair of fiber reinforced resin plates 2A are overlapped, and the SPR 1A is driven into (press-fit) the overlapped fiber reinforced resin plates 2A. FIG. 2 shows the junction structure after SPR1A is implanted. When the SPR 1A is driven, the jig 3A is disposed on the opposite side of the pair of fiber reinforced resin plates 2A, and the head flange 100 is pressed by the driving tool (device). The jig 3A supports the pair of fiber reinforced resin plates 2A on the opposite side and deforms the tip of the driven SPR 1A. The tip of the SPR 1A is expanded outward by the jig 3A, and the fiber reinforced resin plate 2A is sandwiched between the head flange 100 and the tip of the body 101A that is expanded outward. The jig 3A is formed with a concave hole 30A that widens the tip of the body 101A outward. At the center of the concave hole 30A, a convex portion 31A is formed to assist the outward expansion of the front end of the body portion 101A.

胴部１０１Ａの先端がテーパ形状に形成されているので、ＳＰＲ１Ａを繊維強化樹脂板２Ａに打ち込むと胴部１０１Ａが繊維強化樹脂板２Ａにめり込む。この結果、繊維強化樹脂板２Ａには接合孔２０Ａが形成され、胴部１０１Ａは接合孔２０Ａの内部に位置することとなる。接合孔２０Ａが形成される際には、繊維強化樹脂板２Ａの繊維シート及びマトリクス樹脂は胴部１０１Ａの先端によって円柱状に切断される。繊維強化樹脂板２Ａの切断された部分は、胴部１０１Ａの内部に残される。   Since the front end of the body portion 101A is formed in a tapered shape, when the SPR 1A is driven into the fiber reinforced resin plate 2A, the body portion 101A is recessed into the fiber reinforced resin plate 2A. As a result, the joint hole 20A is formed in the fiber reinforced resin plate 2A, and the trunk portion 101A is located inside the joint hole 20A. When the bonding hole 20A is formed, the fiber sheet and the matrix resin of the fiber reinforced resin plate 2A are cut into a columnar shape by the tip of the body portion 101A. The cut portion of the fiber reinforced resin plate 2A is left inside the body portion 101A.

ＳＰＲ１Ａの繊維強化樹脂板２Ａへの打ち込み（圧入）時には、上述したように、胴部１０１Ａの外周面上に塗布された接着剤１１（熱可塑性樹脂又は熱硬化性樹脂）が圧力や摩擦による発熱によって軟化又は液化する。接着剤１１は、ＳＰＲ１Ａの打ち込み（圧入）と共に接合孔２０Ａの内部に押し込まれ、接合孔２０Ａの内周面から繊維強化樹脂板２Ａの内部へと浸潤する。特に、接着剤１１は、繊維強化樹脂板２Ａの繊維部分に浸潤する。接着剤１１の一部は、接合孔２０Ａの打ち込み側に掻き出されて、頭部フランジ１００と繊維強化樹脂板２Ａの外表面との間に挟み込まれる。   As described above, when the SPR 1A is driven (press-fit) into the fiber reinforced resin plate 2A, the adhesive 11 (thermoplastic resin or thermosetting resin) applied on the outer peripheral surface of the body 101A generates heat due to pressure or friction. Softens or liquefies. The adhesive 11 is pushed into the joint hole 20A together with SPR1A driving (press-fit), and infiltrates from the inner peripheral surface of the joint hole 20A into the fiber reinforced resin plate 2A. In particular, the adhesive 11 infiltrates into the fiber portion of the fiber reinforced resin plate 2A. A part of the adhesive 11 is scraped to the driving side of the joining hole 20A and is sandwiched between the head flange 100 and the outer surface of the fiber reinforced resin plate 2A.

繊維強化樹脂板２Ａに浸潤した軟化又は液化した接着剤１１は、ＳＰＲ１Ａの打ち込みが終わると再び硬化して接合孔２０Ａの内周面を補強する。なお、ＳＰＲ１Ａの打ち込み時に接合孔２０Ａの内周面に層間剥離が生じたとしても、接着剤１１が浸潤して層間に充填される。このため、層間剥離部分は接着剤１１によって補強されるため、繊維強化樹脂板２Ａの強度が低下することはない。頭部フランジ１００と繊維強化樹脂板２Ａの外表面との間の接着剤１１も、接合孔２０Ａによる繊維強化樹脂板２Ａの強度低下を抑止する。   The softened or liquefied adhesive 11 infiltrated into the fiber reinforced resin plate 2A is cured again after the driving of the SPR 1A is finished, and reinforces the inner peripheral surface of the joint hole 20A. Even if delamination occurs on the inner peripheral surface of the bonding hole 20A when the SPR 1A is driven, the adhesive 11 is infiltrated and filled between the layers. For this reason, since the delamination part is reinforced by the adhesive 11, the strength of the fiber-reinforced resin plate 2A does not decrease. The adhesive 11 between the head flange 100 and the outer surface of the fiber reinforced resin plate 2A also suppresses a decrease in strength of the fiber reinforced resin plate 2A due to the joint hole 20A.

本実施形態では、ＳＰＲ１Ａの打ち込み後に、接合された一対の繊維強化樹脂板２Ａに熱処理が施される。接着剤１１が熱可塑性樹脂の場合は、熱可塑性樹脂の融点以上の温度で熱処理する。この熱処理によって、熱可塑性樹脂は液化し、繊維強化樹脂板２Ａにより一層浸潤する。熱処理後、熱可塑性樹脂は硬化し、接着剤１１（熱可塑性樹脂）による補強がより一層確実に行われるようになる。   In the present embodiment, after the SPR 1A is driven, a heat treatment is applied to the pair of fiber reinforced resin plates 2A joined. When the adhesive 11 is a thermoplastic resin, heat treatment is performed at a temperature equal to or higher than the melting point of the thermoplastic resin. By this heat treatment, the thermoplastic resin is liquefied and further infiltrated by the fiber reinforced resin plate 2A. After the heat treatment, the thermoplastic resin is cured, and the reinforcement with the adhesive 11 (thermoplastic resin) is more reliably performed.

一方、接着剤１１が熱硬化性樹脂の場合は、熱硬化性樹脂の硬化に必要な温度（以下、硬化温度という）以上で熱処理する。この熱処理によって、熱硬化性樹脂は、その性質上、硬化温度への温度上昇の途中で一旦液化し、繊維強化樹脂板２Ａにより一層浸潤する。そして、硬化温度に達すると、熱硬化性樹脂の内部で架橋反応（重合反応）が始まり、熱硬化性樹脂が硬化する。硬化した熱硬化性樹脂は、熱処理が終わって温度が低下しても硬化したままである。従って、熱処理後には、接着剤１１（熱可塑性樹脂）による補強がより一層確実に行われるようになる。架橋反応によって一旦硬化した接着剤１１（熱可塑性樹脂）は、再び熱を加えても軟化しないので、耐熱性に優れる。   On the other hand, when the adhesive 11 is a thermosetting resin, heat treatment is performed at a temperature higher than the temperature necessary for curing the thermosetting resin (hereinafter referred to as a curing temperature). Due to this heat treatment, the thermosetting resin is once liquefied during the temperature rise to the curing temperature and further infiltrated with the fiber reinforced resin plate 2A. When the curing temperature is reached, a crosslinking reaction (polymerization reaction) starts inside the thermosetting resin, and the thermosetting resin is cured. The cured thermosetting resin remains cured even after the heat treatment is finished and the temperature is lowered. Therefore, after the heat treatment, the reinforcement with the adhesive 11 (thermoplastic resin) is more reliably performed. The adhesive 11 (thermoplastic resin) once cured by the crosslinking reaction is excellent in heat resistance because it is not softened even when heat is applied again.

本実施形態の接合構造（接合方法）によれば、一対の繊維強化樹脂板２Ａが上述したＳＰＲ１Ａによって接合され、かつ、ＳＰＲ１Ａの胴部１０１Ａの外周面と接触する繊維強化樹脂板２Ａの接触部（接合孔２０Ａの内周面）に接着剤１１が浸潤される。従って、接着剤１１によって繊維強化樹脂板２Ａの層間剥離や亀裂による強度低下を抑止することができる。   According to the joining structure (joining method) of the present embodiment, the pair of fiber reinforced resin plates 2A are joined by the SPR 1A described above, and the contact portion of the fiber reinforced resin plate 2A that contacts the outer peripheral surface of the body portion 101A of the SPR 1A. The adhesive 11 is infiltrated into the inner peripheral surface of the joining hole 20A. Therefore, the adhesive 11 can suppress strength reduction due to delamination or cracks in the fiber reinforced resin plate 2A.

（第２実施形態）
次に、第２実施形態について図３及び図４を参照しつつ説明する。本実施形態では、ＳＰＲ１Ｂが上述した第１実施形態のＳＰＲ１Ａと異なっている。具体的には、ＳＰＲ１Ｂの本体１０Ｂの胴部１０１Ｂの内部に接着剤１１が充填されている。そして、胴部１０１Ｂには、その内部から外周面に貫通する貫通孔１０２が形成されている。ＳＰＲ１Ｂの繊維強化樹脂板２Ａへの打ち込み時には、接着剤１１が貫通孔１０２を通して胴部１０１Ｂの外部に押し出される。 (Second Embodiment)
Next, a second embodiment will be described with reference to FIGS. In the present embodiment, SPR1B is different from SPR1A of the first embodiment described above. Specifically, the adhesive 11 is filled into the body 101B of the main body 10B of the SPR1B. A through hole 102 that penetrates from the inside to the outer peripheral surface is formed in the body portion 101B. When the SPR 1B is driven into the fiber reinforced resin plate 2A, the adhesive 11 is pushed out of the body 101B through the through hole 102.

貫通孔１０２は、接着剤１１を周囲に均等に押し出すように、周方向に等間隔に複数形成される。具体的には、貫通孔１０２は、二つ〜四つ形成されるのが好ましい。貫通孔１０２の数が多くなると、胴部１０１Ｂの強度が低下してしまう。本実施形態では、四つの貫通孔１０２が同じ高さに形成されている。なお、対向する二つの貫通孔１０２が二組あるが、各組の高さを変えてもよい。このようにすることで、接着剤１１の押し出し位置を変えて繊維強化樹脂板２Ａへの浸潤をより確実に行うことが可能となる場合もある。   A plurality of through holes 102 are formed at equal intervals in the circumferential direction so as to evenly push the adhesive 11 around. Specifically, it is preferable that two to four through holes 102 are formed. When the number of the through holes 102 increases, the strength of the body portion 101B decreases. In the present embodiment, the four through holes 102 are formed at the same height. Although there are two sets of two through holes 102 facing each other, the height of each set may be changed. By doing in this way, it may be possible to change the extrusion position of the adhesive 11 and more reliably infiltrate the fiber reinforced resin plate 2A.

本実施形態における接着剤１１も、熱可塑性樹脂又は熱硬化性樹脂である。熱可塑性樹脂又は熱硬化性樹脂製の接着剤１１は、ＳＰＲ１Ｂの一対の板材（繊維強化樹脂板２Ａ）への打ち込み時に受ける圧力による発熱によって軟化又は液化する。なお、接着剤１１としては、空気中の酸素や水分によって硬化する接着剤や、含有されている溶剤が揮発することで硬化する接着剤など、どのような接着剤でも使用できる。特に、本実施形態の場合は、空気と触れる部分は局所的に硬化してしまうかもしれないが、空気中の酸素や水分によって硬化する接着剤であれば、胴部１０１Ｂの内部に予め充填させておくことが可能な場合がある。この場合、ＳＰＲ１Ｂを繊維強化樹脂板２Ａに打ち込む「直前に」接着剤１１を胴部１０１Ｂの内部に充填しなくてもよく、作業性が向上する。   The adhesive 11 in this embodiment is also a thermoplastic resin or a thermosetting resin. The adhesive 11 made of a thermoplastic resin or a thermosetting resin is softened or liquefied by heat generated by the pressure received when the SPR 1B is driven into the pair of plate materials (fiber reinforced resin plate 2A). As the adhesive 11, any adhesive can be used such as an adhesive that is cured by oxygen or moisture in the air, or an adhesive that is cured by volatilization of the contained solvent. In particular, in the case of the present embodiment, the portion that comes into contact with air may be locally cured, but if the adhesive is cured by oxygen or moisture in the air, the inside of the body portion 101B is prefilled. It may be possible to keep it. In this case, it is not necessary to fill the inside of the body portion 101B with the adhesive 11 "just before" driving SPR1B into the fiber reinforced resin plate 2A, and workability is improved.

その他の構成は上述した第１実施形態と同じである。上述したＳＰＲ１Ｂによって一対の繊維強化樹脂板２Ａを接合するには、一対の繊維強化樹脂板２Ａを重ね合わせ、重ね合わされた繊維強化樹脂板２ＡにＳＰＲ１Ｂを打ち込む（圧入する）。ＳＰＲ１Ｂの打ち込み後の接合構造を図４に示す。ＳＰＲ１Ｂを繊維強化樹脂板２Ａに打ち込むと、繊維強化樹脂板２Ａには接合孔２０Ａが形成され、繊維強化樹脂板２Ａの円柱状に切断された部分によって胴部１０１Ｂの内部に充填された接着剤１１は圧力を受ける。圧力を受けた接着剤１１（熱可塑性樹脂又は熱硬化性樹脂）は圧力による発熱によって軟化又は液化する。   Other configurations are the same as those of the first embodiment described above. In order to join the pair of fiber reinforced resin plates 2A by the SPR 1B described above, the pair of fiber reinforced resin plates 2A are overlapped, and the SPR 1B is driven into (press-fit) the overlapped fiber reinforced resin plates 2A. FIG. 4 shows the junction structure after SPR1B is implanted. When SPR1B is driven into the fiber reinforced resin plate 2A, an adhesive 20A is formed in the fiber reinforced resin plate 2A, and the adhesive is filled into the body portion 101B by a portion of the fiber reinforced resin plate 2A cut into a columnar shape. 11 receives pressure. The pressure-sensitive adhesive 11 (thermoplastic resin or thermosetting resin) is softened or liquefied by heat generated by the pressure.

軟化又は液化した接着剤１１は、圧力を受けて貫通孔１０２を通って胴部１０１Ｂの外部に押し出される。外部に押し出された接着剤１１は、接合孔２０Ａの内周面から繊維強化樹脂板２Ａの内部へと浸潤する。特に、接着剤１１は、繊維強化樹脂板２Ａの繊維部分に浸潤する。押し出された接着剤１１の一部は、頭部フランジ１００と繊維強化樹脂板２Ａの外表面との間にまで達する（達しなくてもよい）。   The softened or liquefied adhesive 11 receives pressure and is pushed out of the body 101B through the through hole 102. The adhesive 11 extruded to the outside infiltrates from the inner peripheral surface of the joint hole 20A into the fiber reinforced resin plate 2A. In particular, the adhesive 11 infiltrates into the fiber portion of the fiber reinforced resin plate 2A. Part of the extruded adhesive 11 reaches (but does not need to reach) between the head flange 100 and the outer surface of the fiber reinforced resin plate 2A.

繊維強化樹脂板２Ａに浸潤した軟化又は液化した接着剤１１は、ＳＰＲ１Ｂの打ち込みが終わると再び硬化して接合孔２０Ａの内周面を補強する。ＳＰＲ１Ｂの打ち込み時に接合孔２０Ａの内周面に層間剥離が生じたとしても、接着剤１１が浸潤して層間に充填される。このため、層間剥離部分は接着剤１１によって補強されるため、繊維強化樹脂板２Ａの強度が低下することはない。頭部フランジ１００と繊維強化樹脂板２Ａの外表面との間の接着剤１１も、接合孔２０Ａによる繊維強化樹脂板２Ａの強度低下を抑止する。   The softened or liquefied adhesive 11 infiltrated into the fiber reinforced resin plate 2A is hardened again after the driving of the SPR 1B is finished, and reinforces the inner peripheral surface of the joint hole 20A. Even if delamination occurs on the inner peripheral surface of the bonding hole 20A when the SPR 1B is driven, the adhesive 11 is infiltrated and filled between the layers. For this reason, since the delamination part is reinforced by the adhesive 11, the strength of the fiber-reinforced resin plate 2A does not decrease. The adhesive 11 between the head flange 100 and the outer surface of the fiber reinforced resin plate 2A also suppresses a decrease in strength of the fiber reinforced resin plate 2A due to the joint hole 20A.

本実施形態においても、ＳＰＲ１Ｂの打ち込み後に、接合された一対の繊維強化樹脂板２Ａに熱処理がさらに施される。これにより、上述した第１実施形態と同様に、接着剤１１（熱可塑性樹脂又は熱硬化性樹脂）による補強がより一層確実に行われるようになる。なお、本実施形態では、接着剤１１は、繊維強化樹脂板２Ａの円柱状に切断された部分にも浸潤してしまうが、この部分は接合された繊維強化樹脂板２Ａの強度とは関係がない。むしろ、繊維強化樹脂板２Ａの切断された部分は、接着剤１１を押し出す役割がある点で重要である。   Also in the present embodiment, after the SPR 1B is driven, the pair of fiber reinforced resin plates 2A joined is further subjected to heat treatment. Thereby, similarly to 1st Embodiment mentioned above, reinforcement by the adhesive agent 11 (thermoplastic resin or thermosetting resin) comes to be performed still more reliably. In this embodiment, the adhesive 11 also infiltrates into a portion of the fiber reinforced resin plate 2A that is cut into a columnar shape, but this portion is related to the strength of the joined fiber reinforced resin plate 2A. Absent. Rather, the cut portion of the fiber reinforced resin plate 2A is important in that it has a role of extruding the adhesive 11.

本実施形態の接合構造（接合方法）によっても、一対の繊維強化樹脂板２Ａが上述したＳＰＲ１Ｂによって接合され、かつ、ＳＰＲ１Ｂの胴部１０１Ｂの外周面と接触する繊維強化樹脂板２Ａの接触部（接合孔２０Ａの内周面）に接着剤１１が浸潤される。従って、接着剤１１によって繊維強化樹脂板２Ａの層間剥離や亀裂による強度低下を抑止することができる。   Also by the joining structure (joining method) of the present embodiment, the pair of fiber reinforced resin plates 2A are joined by the SPR 1B described above, and the contact portion of the fiber reinforced resin plate 2A in contact with the outer peripheral surface of the body portion 101B of the SPR 1B ( The adhesive 11 is infiltrated into the inner peripheral surface of the joining hole 20A. Therefore, the adhesive 11 can suppress strength reduction due to delamination or cracks in the fiber reinforced resin plate 2A.

（第３実施形態）
次に、第３実施形態について図５及び図６を参照しつつ説明する。本実施形態では第１実施形態のＳＰＲ１Ａが用いられる。ただし、接合される一対の板材が、上述した繊維強化樹脂板２Ａと金属板２Ｂである。本実施形態の金属板２Ｂは、アルミニウム合金板である。ＳＰＲ１Ａの打ち込み側に繊維強化樹脂板２Ａが配置されるように、一対の板材（繊維強化樹脂板２Ａ及び金属板２Ｂ）が重ね合される。なお、接合される一対の板材の一方が金属板２Ｂであるので、治具３Ｂの凹円穴３０Ｂや凸部３１Ｂの形状が、第１及び第２実施形態の治具３Ａの凹円穴３０Ａや凸部３１Ａの形状と若干異なっている。 (Third embodiment)
Next, a third embodiment will be described with reference to FIGS. In the present embodiment, the SPR 1A of the first embodiment is used. However, the pair of plate members to be joined are the above-described fiber reinforced resin plate 2A and metal plate 2B. The metal plate 2B of the present embodiment is an aluminum alloy plate. A pair of plate materials (fiber reinforced resin plate 2A and metal plate 2B) are overlapped so that fiber reinforced resin plate 2A is arranged on the driving side of SPR 1A. Since one of the pair of plate members to be joined is the metal plate 2B, the shape of the concave hole 30B or the convex portion 31B of the jig 3B is the concave circular hole 30A of the jig 3A of the first and second embodiments. And slightly different from the shape of the convex portion 31A.

その他の構成は上述した第１実施形態と同じである。上述したＳＰＲ１Ａによって一対の板材（繊維強化樹脂板２Ａ及び金属板２Ｂ）を接合するには、一対の板材を重ね合わせ、重ね合わされた板材にＳＰＲ１Ａを打ち込む（圧入する）。ＳＰＲ１Ａの打ち込み後の接合構造を図６に示す。ＳＰＲ１Ａを繊維強化樹脂板２Ａに打ち込むと、繊維強化樹脂板２Ａには接合孔２０Ａが形成され、繊維強化樹脂板２Ａの円柱状に切断された部分は、胴部１０１Ａの内部に残される。接着剤１１は、上述した第１実施形態と同様に、接合孔２０Ａの内周面から繊維強化樹脂板２Ａの内部へと浸潤する。繊維強化樹脂板２Ａに浸潤した接着剤１１は、接合孔２０Ａによる繊維強化樹脂板２Ａの強度低下を抑止する。   Other configurations are the same as those of the first embodiment described above. In order to join a pair of plate materials (fiber reinforced resin plate 2A and metal plate 2B) with SPR1A described above, the pair of plate materials are overlapped and SPR1A is driven into (press-fit) the stacked plate materials. FIG. 6 shows the junction structure after SPR1A is implanted. When the SPR 1A is driven into the fiber reinforced resin plate 2A, a joint hole 20A is formed in the fiber reinforced resin plate 2A, and the portion of the fiber reinforced resin plate 2A cut into a columnar shape is left inside the trunk portion 101A. The adhesive 11 infiltrates from the inner peripheral surface of the joint hole 20A into the fiber reinforced resin plate 2A, as in the first embodiment described above. The adhesive 11 infiltrated into the fiber reinforced resin plate 2A suppresses the strength reduction of the fiber reinforced resin plate 2A due to the bonding hole 20A.

ただし、本実施形態では、胴部１０１Ａの先端側に配置される金属板２Ｂの材質はアルミ合金であり、ＳＰＲ１Ａの材質と同じである。このため、ＳＰＲ１Ａを打ち込むと、ＳＰＲ１Ａは、ほぼ同じ硬さを持つ金属板２Ｂを貫通することはなく、胴部１０１Ａの先端は拡がりながら金属板２Ｂを変形させつつ埋没する。このように、材質によっては、ＳＰＲの先端は一対の板材を貫通せずに胴部の先端側の板材に埋没するが、接合としては何の問題もない。   However, in the present embodiment, the material of the metal plate 2B disposed on the front end side of the body portion 101A is an aluminum alloy, which is the same as the material of SPR1A. For this reason, when the SPR 1A is driven, the SPR 1A does not penetrate the metal plate 2B having substantially the same hardness, and the tip of the body portion 101A is buried while deforming the metal plate 2B while expanding. Thus, depending on the material, the tip of the SPR does not penetrate the pair of plates, but is buried in the plate on the tip side of the trunk, but there is no problem as a joint.

本実施形態においても、ＳＰＲ１Ａの打ち込み後に、接合された一対の繊維強化樹脂板２Ａに熱処理がさらに施される。これにより、上述した第１実施形態と同様に、接着剤１１（熱可塑性樹脂又は熱硬化性樹脂）による補強がより一層確実に行われるようになる。なお、本実施形態のような一対の板材（繊維強化樹脂板２Ａ及び金属板２Ｂ）に対して、第２実施形態のＳＰＲ１Ｂを適用することも可能である。   Also in the present embodiment, after the SPR 1A is driven, heat treatment is further applied to the pair of fiber reinforced resin plates 2A joined. Thereby, similarly to 1st Embodiment mentioned above, reinforcement by the adhesive agent 11 (thermoplastic resin or thermosetting resin) comes to be performed still more reliably. In addition, it is also possible to apply SPR1B of 2nd Embodiment with respect to a pair of board | plate materials (2A of fiber reinforced resin plates, and metal plate 2B) like this embodiment.

本実施形態の接合構造（接合方法）によっても、一対の板材（繊維強化樹脂板２Ａ及び金属板２Ｂ）が上述したＳＰＲ１Ａによって接合され、かつ、ＳＰＲ１Ａの胴部１０１Ａの外周面と接触する繊維強化樹脂板２Ａの接触部（接合孔２０Ａの内周面）に接着剤１１が浸潤される。従って、接着剤１１によって繊維強化樹脂板２Ａの層間剥離や亀裂による強度低下を抑止することができる。   Also by the joining structure (joining method) of this embodiment, a pair of plate materials (fiber reinforced resin plate 2A and metal plate 2B) are joined by SPR1A described above, and fiber reinforced to come into contact with the outer peripheral surface of body portion 101A of SPR1A. The adhesive 11 is infiltrated into the contact portion of the resin plate 2A (inner peripheral surface of the joining hole 20A). Therefore, the adhesive 11 can suppress strength reduction due to delamination or cracks in the fiber reinforced resin plate 2A.

本発明は、上記実施形態に限定されない。例えば、上記実施形態では、接着剤１１（熱可塑性樹脂又は熱硬化性樹脂）を有するＳＰＲ１Ａ又は１Ｂの一対の板材への打ち込み後に熱処理が行われた。上述したように、この熱処理によって、接着剤１１の繊維強化樹脂板２Ａへの浸潤が促進される（熱硬化性樹脂の場合は硬化も促進され得る）ので好ましい。しかし、熱可塑性樹脂の場合は、ＳＰＲ１Ａ又は１Ｂの一対の板材への打ち込みのみで接着剤１１を繊維強化樹脂板２Ａに十分浸潤させることができるのであれば、熱処理は必ずしも必要ない。   The present invention is not limited to the above embodiment. For example, in the above embodiment, the heat treatment was performed after the SPR 1A or 1B having the adhesive 11 (thermoplastic resin or thermosetting resin) was driven into a pair of plate materials. As described above, this heat treatment is preferable because infiltration of the adhesive 11 into the fiber reinforced resin plate 2A is promoted (in the case of a thermosetting resin, curing can also be promoted). However, in the case of a thermoplastic resin, heat treatment is not necessarily required as long as the adhesive 11 can be sufficiently infiltrated into the fiber reinforced resin plate 2A only by being driven into the pair of plates of SPR1A or 1B.

また、接着剤１１が熱可塑性樹脂や熱硬化性樹脂の場合は、ＳＰＲ１Ａ又は１Ｂの一対の板材への打ち込み時の圧力や摩擦によって軟化又は液化された。しかし、他の種類の接着剤を用いる場合、当該接着剤が十分な流動性を有していれば、このような圧力や摩擦による軟化や液化を利用する必要はない。   Further, when the adhesive 11 was a thermoplastic resin or a thermosetting resin, it was softened or liquefied by pressure or friction at the time of driving into the pair of SPR1A or 1B plate materials. However, when other types of adhesives are used, there is no need to use softening or liquefaction due to such pressure or friction if the adhesives have sufficient fluidity.

また、上記の第１実施形態や第３実施形態のＳＰＲ１Ａ（胴部１０１Ａの外周面上に接着剤１１が塗布されている）の頭部フランジ１００は閉じられていた。しかし、頭部フランジ１００の中心に孔が形成され、頭部フランジ１００側で胴部１０１Ａの内部が開放されていてもよい。ただし、上記の第２実施形態のＳＰＲ１Ｂ（胴部１０１Ｂの内部に接着剤１１が充填されている）の頭部フランジ１００は閉じられていなければならない。ＳＰＲ１Ｂの一対の板材への打ち込み時に接着剤１１を胴部１０１Ａの内部から外部に貫通孔１０２を通して押し出すには、頭部フランジ１００は閉じられている必要がある。   In addition, the head flange 100 of the SPR 1A (the adhesive 11 is applied on the outer peripheral surface of the body 101A) of the first embodiment and the third embodiment is closed. However, a hole may be formed in the center of the head flange 100, and the inside of the trunk portion 101A may be opened on the head flange 100 side. However, the head flange 100 of the SPR 1B (the body portion 101B is filled with the adhesive 11) of the second embodiment must be closed. The head flange 100 needs to be closed in order to push the adhesive 11 through the through hole 102 from the inside of the trunk portion 101A to the outside when the SPR 1B is driven into the pair of plate members.

さらに、上記の第１実施形態や第２実施形態では、一対の板材の両方が繊維強化樹脂板２Ａであった。しかし、一対の板材の少なくとも一方が繊維強化樹脂板であればよく、この場合、接着剤によって一方のみの繊維強化樹脂板の層間剥離や亀裂による強度低下を効果的に抑止できる。また、一方のみの繊維強化樹脂板は、打ち込まれたＳＰＲの頭部フランジ側に配置されてもよいし、胴部の先端側に配置されてもよい。   Furthermore, in said 1st Embodiment and 2nd Embodiment, both of a pair of board | plate material was the fiber reinforced resin board 2A. However, at least one of the pair of plate members may be a fiber reinforced resin plate, and in this case, strength reduction due to delamination or cracking of only one of the fiber reinforced resin plates can be effectively suppressed by the adhesive. Further, only one of the fiber reinforced resin plates may be disposed on the head flange side of the driven SPR, or may be disposed on the distal end side of the trunk portion.

なお、ＳＰＲを打ち込む位置に予め接合孔を形成しておいてもよい。この場合も、第１〜第３実施形態のようにＳＰＲを打ち込めば、接着剤を繊維強化樹脂板に浸潤させることができる。特に、一対の板材の一方が鉄板や鋼板である場合、その硬さはＳＰＲのアルミニウム又はアルミニウム合金よりも硬い。このため、ＳＰＲによって鉄板や鋼板を貫通することはできない。このような場合は、鉄板や鋼板に予め接合孔を形成しておき、この接合孔にＳＰＲを打ち込む。   Note that a bonding hole may be formed in advance at a position where the SPR is driven. Also in this case, if the SPR is driven as in the first to third embodiments, the adhesive can be infiltrated into the fiber reinforced resin plate. In particular, when one of the pair of plate members is an iron plate or a steel plate, the hardness thereof is harder than that of SPR aluminum or aluminum alloy. For this reason, an iron plate and a steel plate cannot be penetrated by SPR. In such a case, a joining hole is formed in advance in an iron plate or a steel plate, and SPR is driven into this joining hole.

なお、上記の第３実施形態において、繊維強化樹脂板２Ａと金属板２Ｂとの位置が逆の場合も、ＳＰＲ１Ａは金属板２Ｂを貫通できないので、金属板２Ｂに予め接合孔を形成しておけばよい。また、繊維強化樹脂板に予め接合孔を形成しておいてもよい。ただし、繊維強化樹脂板に接着剤を浸潤させるので、繊維強化樹脂板に形成される接合孔の内径はＳＰＲの胴部の外径と同じかやや小さい寸法とされる。なお、ＳＰＲの材質は、アルミニウムやアルミニウム合金に限定されない。   In the third embodiment, even when the positions of the fiber reinforced resin plate 2A and the metal plate 2B are reversed, the SPR 1A cannot penetrate the metal plate 2B. That's fine. Moreover, you may form the joining hole previously in the fiber reinforced resin board. However, since the adhesive is infiltrated into the fiber reinforced resin plate, the inner diameter of the joining hole formed in the fiber reinforced resin plate is the same as or slightly smaller than the outer diameter of the body portion of the SPR. The material of SPR is not limited to aluminum or aluminum alloy.

本発明は、少なくとも一方が繊維樹脂強化板である一対の板材のセルフピアスリベットによる接合に適用できる。   The present invention can be applied to joining a pair of plate materials, at least one of which is a fiber resin reinforced plate, by self-piercing rivets.

１Ａ，１Ｂ セルフピアスリベット（ＳＰＲ）
１０Ａ，１０Ｂ （ＳＰＲの）本体
１００ （本体の）頭部フランジ
１０１Ａ，１０１Ｂ （本体の）胴部
１０２ （胴部の）貫通孔
１１ 接着剤
２Ａ 繊維強化樹脂板（板材）
２０Ａ 接合孔
２Ｂ 金属板（板材）
３Ａ，３Ｂ 治具 1A, 1B Self-piercing rivet (SPR)
10A, 10B (SPR) main body 100 (main body) head flange 101A, 101B (main body) barrel 102 (body) through hole 11 Adhesive 2A Fiber reinforced resin plate (plate material)
20A Joint hole 2B Metal plate (plate material)
3A, 3B jig

Claims (6)

板材の接合構造であって、
少なくとも一方が積層された繊維シートに樹脂を浸潤させて形成された繊維強化樹脂板である一対の板材と、
頭部フランジ及び前記頭部フランジから立設された胴部を有し、重ね合わされた前記一対の板材に前記胴部が打ち込まれて前記一対の板材を接合しているセルフピアスリベットと、
前記胴部の外周面と接触する前記繊維強化樹脂板の接触部に浸潤した接着剤と、を備えた板材の接合構造。 It is a joining structure of plate materials,
A pair of plate materials that are fiber-reinforced resin plates formed by infiltrating a resin into a fiber sheet in which at least one is laminated;
A self-piercing rivet having a head flange and a body erected from the head flange, wherein the body is driven into the pair of stacked plate members to join the pair of plate members;
A bonding structure for a plate material, comprising: an adhesive that has infiltrated a contact portion of the fiber-reinforced resin plate that comes into contact with an outer peripheral surface of the trunk portion. 前記胴部の内部から前記外周面に貫通する貫通孔が形成されている、請求項1に記載の板材の接合構造。   2. The joining structure of plate members according to claim 1, wherein a through-hole penetrating from the inside of the trunk portion to the outer peripheral surface is formed. 板材の接合方法であって、
少なくとも一方が積層された繊維シートに樹脂を浸潤させて形成された繊維強化樹脂板である一対の板材を重ね合わせ、
頭部フランジ及び前記頭部フランジから立設された胴部を有し、かつ、前記胴部の外周面に塗布されるか前記胴部の内部に充填された接着剤を有するセルフピアスリベットを、重ね合わされた前記一対の板材に打ち込み、
重ね合わされた前記一対の板材に前記胴部を打ち込むことで、前記外周面と接触する前記繊維強化樹脂板の接触部に前記接着剤を浸潤させる、板材の接合方法。 A method for joining plate materials,
A pair of plate materials which are fiber reinforced resin plates formed by infiltrating a resin into a fiber sheet on which at least one is laminated,
A self-piercing rivet having a head flange and a body erected from the head flange, and having an adhesive applied to an outer peripheral surface of the body or filled in the body; Drive into the pair of stacked plates,
A method of joining plate members, wherein the adhesive is infiltrated into a contact portion of the fiber-reinforced resin plate that comes into contact with the outer peripheral surface by driving the body portion into the pair of plate members stacked. 前記接着剤が熱可塑性樹脂であり、前記セルフピアスリベットによって接合された前記一対の板材を前記熱可塑性樹脂の融点以上の温度でさらに熱処理する、請求項３に記載の板材の接合方法。   The method for joining plate members according to claim 3, wherein the adhesive is a thermoplastic resin, and the pair of plate members joined by the self-piercing rivet is further heat-treated at a temperature equal to or higher than a melting point of the thermoplastic resin. 前記接着剤が熱硬化性樹脂であり、前記セルフピアスリベットによって接合された前記一対の板材を前記熱硬化性樹脂の硬化に必要な温度以上でさらに熱処理する、請求項３に記載の板材の接合方法。   The joining of plate materials according to claim 3, wherein the adhesive is a thermosetting resin, and the pair of plate materials joined by the self-piercing rivets are further heat-treated at a temperature higher than a temperature necessary for curing the thermosetting resin. Method. 前記胴部に前記内部から前記外周面に貫通する貫通孔が形成されており、前記胴部の前記一対の板材への打ち込み時に、前記胴部の前記内部に充填された前記接着剤を前記貫通孔を通して前記接触部に浸潤させる、請求項３〜５の何れか一項に記載の板材の接合方法。   A through-hole penetrating from the inside to the outer peripheral surface is formed in the body part, and the adhesive filled in the inside of the body part is penetrated through the body part when the body part is driven into the pair of plate members. The joining method of the board | plate materials as described in any one of Claims 3-5 which infiltrate the said contact part through a hole.
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