• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Different material joining structure and different material joining body production method. the present invention relates to a joint structure of different material that includes: a first target joint member (12) produced from resin; a second target joint member (14) produced from metal; and a rivet (16) produced from metal. the rivet includes a shank portion (30), and a head (36) integral with a first end of the shank portion, and disposed outside the hole. the rod-shaped part includes: a rod (32); an enlarged diameter part (34a); and a piercing part (34) joined to the second joining member also through the welded part. a hole (24) of the first target joint member includes: a small diameter hole portion (26) formed on an outer circumference of the shank, and having an inner diameter dimension equal to a diameter dimension of the enlarged diameter part ; and a large diameter hole part (28) formed on an outer circumference of the piercing part, and having an inner diameter dimension greater than the diameter dimension of the enlarged diameter part.
    公开号:BR102016015939B1
    申请号:R102016015939-3
    申请日:2016-07-08
    公开日:2022-01-11
    发明作者:Tsuyoshi Izuhara
    申请人:Toyota Jidosha Kabushiki Kaisha；
    IPC主号:
    专利说明:

    Background of the Invention 1. Field of Invention
    [0001] The present invention relates to a joining structure of different material and a method of producing a joined body of different material. 2. Description of the Related Technique
    [0002] There are known techniques of joining dissimilar materials together (see Japanese Patent Application Publication No. 201322622, Japanese Patent Application Publication No. 2013-133044, and Japanese Patent Application Publication No. 2005 -308116). For example, JP 2013-22622 A describes a technique of joining a steel member and an aluminum alloy member using a steel piercing metal. Specifically, such drilling metal integrally includes a columnar rod and a disk-shaped head having a diameter greater than that of the rod at a first end in an axial direction of the rod. The shank of this drilling metal is drilled into the aluminum alloy member so that the shank forms a through hole in the aluminum alloy member, and the head is in contact with a surface of the aluminum alloy member. After a drill metal drilled in this way is secured, a front end of the drill metal shank and the steel member are joined by spot welding, thus joining the steel member and aluminum alloy member to each other. through the perforation metal.
    [0003] In this related technique, the aluminum alloy member is drilled by the columnar rod of the drill metal during the above production, thus producing a structure in which an outer circumferential surface of the drill metal rod is in contact with a circumferential surface inside the through hole of the aluminum alloy member. Therefore, during heating in a coating drying process or the like, for example, if a difference in elongation occurs between the steel member and the aluminum alloy member due to a difference in linear expansion between them, a load is applied to the drill metal rod and the through hole of the aluminum alloy member. However, the difference in linear expansion between the steel member and the aluminum alloy member during heating is relatively small, so that a preferable bonding condition between the steel member and the aluminum alloy member is maintained.
    [0004] The joining targets in the related technique described above in JP 2013-22622 A are both metallic members, but there are demands for metallic joining members and resin members in view of weight reduction. However, a difference in linear expansion between metallic members and resin members during heating is often greater than a difference in linear expansion between different metallic members during heating. Therefore, in a structure for joining a metallic member and a resin member using a perforation metal (rivet) in a shape as described in the related art, there is scope for improving maintenance of a preferable joining condition between the member. metallic and resin member during heating. Summary of the Invention
    [0005] The present invention provides a bonding structure of different material and a method of producing a bonded body of different material capable of maintaining a preferable bonding condition between a metallic target bonding member and a resin target bonding member during heating in the case of joining the metallic target joining member and the resin target joining member with the use of a rivet.
    [0006] A dissimilar material joint structure according to the first aspect of the invention includes: a first target joint member in a laminar shape produced from resin, the first target joint member which includes a hole extending through the first target union member; a second target joint member in a laminar shape produced from metal, the second target joint member including a portion facing the hole and an outer circumference of the hole; and a rivet including: a rod-shaped portion disposed within the hole, the rod-shaped portion having an axial direction along a plate thickness direction of the first target joining member; and an integral head with a first end in the axial direction of the rod-shaped part, the head disposed outside the hole. The rivet is produced from metal, and the rivet is configured so that a flange portion configuring a head portion is in contact with a surface of the first target joining member, one end of a second end side in the direction The axial axis of the rod-shaped part is joined to the second target joint member through a welded part, and the flange part holds the first target joint member between the flange part and the second target joint member. The rod-shaped part includes: a rod in a short pillar shape that extends from a center of the head; an enlarged diameter portion formed to be in continuity with the shank and having a diameter dimension defined to be greater than a shank diameter dimension; and a piercing part joined to the second joining member also through the welded part. The hole includes: a small diameter hole portion defined to be formed on an outer circumference of the rod, the small diameter hole portion having an internal diameter dimension equal to the diameter dimension of the enlarged diameter portion; and a large diameter hole part formed on an outer circumference of the piercing part, the large diameter hole part having an inner diameter dimension greater than the diameter dimension of the enlarged diameter part. A gap is defined in a radial direction of the rod-shaped part through the entire circumference between an inner circumferential surface of the hole and an outer circumferential surface of the rod-shaped part.
    [0007] According to the above aspect, the tab part of the metal rivet is in contact with the surface of the first target joint member produced from resin, the rod-shaped part of the rivet is arranged inside the hole of the first target joint member, the piercing part of the rod-shaped part is joined to the second target joint member produced from metal through the welded part, and the flange part holds the first target joint member between the flange part and the second target union member.
    [0008] The piercing part of the rod-shaped part is then formed to be in continuity with the rod (rod-shaped part part) that extends from the rivet head, and has an enlarged diameter part that has a diameter dimension greater than the diameter dimension of the shank, and the small diameter hole part which is a hole portion and disposed on an outer circumference of the shank is defined to have an inner diameter dimension equal to a diameter dimension of the enlarged diameter part. Specifically, the inner diameter dimension of the small diameter hole part is defined to be greater than the diameter dimension of the rod. The large diameter hole part which is the other hole part, and is arranged on an outer circumference of the perforation part is defined to have an inner diameter dimension greater than the diameter dimension of the enlarged diameter part. The gap in the radial direction of the rod-shaped part is provided around the entire circumference between the inner circumferential surface of the hole and the outer circumferential surface of the rod-shaped part; therefore, even if a difference in elongation in the radial direction of the rod-shaped part occurs between the first target joint member produced from resin and the second target joint member produced from metal due to the difference in linear expansion between the first target joint member and the second target joint member during heating, the difference in elongation is absorbed by the span. Accordingly, it is possible to avoid or suppress a load input to the rod-shaped part and the hole due to the difference in elongation.
    [0009] In the first aspect, the first target joining member can be configured to be a fiber reinforced resin member. The first target union member may include a general part; and a projection part configured to project from the general part towards the second target joining member. The projection part may include a part in which the large diameter orifice part is formed; and a rest surface formed across the entire outer circumference of an opening end in the large diameter hole portion facing the second target joint member, the rest surface being in surface contact with the second target joining member. target joint, and the tab part is configured to overlap the entire rest surface as seen in the axial direction of the rod-shaped part.
    [0010] According to the above aspect, since the first target joint member is produced from a fiber reinforced resin, a distortion occurs due to the anisotropy of the reinforced fibers. However, on the first target joint member, the projection part which projects from the general part towards the second target joint member is formed, and the projection part is provided with the rest surface which is in contact with the second target union member; therefore, it is possible to suppress the influence of distortion compared to a forming structure in the projection part, and it is possible to bring the first target joint member into surface contact with the second target joint member with high precision.
    [0011] On the other hand, since the large diameter hole part which has a larger inner diameter dimension than the small diameter hole part is formed in the projection part, the rest surface is set at a more away from the axial line (central axis) of the rivet compared to the contrast structure it has in the large diameter hole part, for example. To deal with this, the tab portion of the rivet is defined to overlap the entire rest surface of the first target joint member as viewed in the axial direction of the shank portion; therefore, even if the rest surface is set at a position away from the rivet's axial line, it is possible to apply a clamping force in the axial direction of the rod-shaped part to the first target joining member between the flange part and the second. target joining member through the entire outer circumference of the shank portion of the rivet.
    [0012] A method of producing a jointed body of different material according to the second aspect of the invention is the production method which joins a first target joint member and a second target joint member with the use of a rivet. The rivet includes: a shank in a short pillar shape; an integral head with a first end in an axial direction of the shank, the head having a diameter dimension greater than a shank diameter dimension; and an integral drill part with a second end in the axial direction of the rod, the drill part having an enlarged diameter part whose diameter dimension is greater than the rod diameter dimension, and smaller than the head diameter dimension . The first target bonding member in a laminar shape produced from resin. The first target union member includes a recess. The recess has an inner diameter dimension greater than the diameter dimension of the enlarged diameter part, and less than the diameter dimension of the head. The second joining member targets in a laminar shape produced from metal. The production method includes a first step of perforating an inner center of the recess with the perforating part of a surface opposite a recess forming surface of the first target joint member so as to make a flap part which forms a part of the head contacts the surface of the first target joining member; and a second step of arranging the second target joint member so as to face the recess forming surface of the first target joint member after the first step of welding an end of the piercing part of the rivet to the second member target joint member, while the first target joint member is held between the tab portion of the rivet and the second target joint member.
    [0013] According to the above aspect, in the first step, the piercing part is brought to pierce the inner recess part of the first target joint member from the surface of the first target joint member opposite a forming surface of the recess, thereby bringing the flap portion constituting a rivet head portion into contact with the surface of the first target joint member. In this case, the rivet is configured so that the drill part and head are connected through the shank, and in the drill part, the enlarged diameter part has a larger diameter dimension than the shank diameter dimension in a shape short pillar; thus, the gap is formed across the entire outer circumference of the shank between the inner circumferential surface of the hole of the first target joint member pierced by the piercing part, and the shank of the rivet. The inside diameter dimension of the recess is defined to be greater than the diameter dimension of the enlarged diameter portion of the rivet; therefore, the gap is formed through the entire outer circumference of the piercing part of the rivet.
    [0014] In the second step after the first step, the second target joint member is arranged to face the recess forming surface of the first target joint member, and while the first target joint member is held between the flange of the rivet and the second target joint member, the end of the piercing part of the rivet is welded to the second target joint member. Here, the diameter dimension of the head including the flap part is defined to be greater than both the diameter dimension of the enlarged diameter part of the piercing part and the inner diameter dimension of the recess; therefore, a clamping force in the axial direction of the rivet can be applied to the first target joint member between the tab part and the second target joint member through the entire outer circumference of the rivet shank and the piercing part. In this way, the first target joint member and the second target joint member can be joined together using the rivet.
    [0015] If the joint body of different material produced is heated, even if the difference in elongation in the radial direction occurs between the first target joint member produced from resin and the second target joint member produced from metal due to the difference in linear expansion between them, the difference in elongation is absorbed by the span. Therefore, it is possible to avoid or suppress a load input to the shank, the drilling part and the through hole located on the outer circumference thereof due to the difference in elongation above.
    [0016] In the second aspect, in the second step, a pair of electrodes can be arranged so as to support a center of the rivet head, a rod-shaped part that includes the rod and the drilling part, and the second member of target joint between the electrodes, and the electrode pair can be supplied with current so as to weld the end of the rivet piercing part to the second target joint member.
    [0017] According to the above-mentioned embodiment, it is possible to promote an excellent effect to maintain a preferable bonding condition between a metallic target bonding member and a resin target bonding member during heating in the case of bonding of the metallic target bonding member and the resin target joining member using a rivet. Brief Description of Drawings
    [0018] The characteristics, advantages and technical and industrial significance of the exemplary embodiments of the invention will be described below with reference to the accompanying drawings, in which like numerals indicate like elements and in which: Figure 1 is a sectional view showing a dissimilar material joint structure in accordance with an embodiment of the present invention; Figure 2A is a sectional view showing a process of a method of producing a joined body of different material that includes the joining structure of different material of Figure 1, and showing a state in which a perforation part adjoins with a surface opposite a recess forming surface of a first target joint member in a first step; Figure 2B is a sectional view showing the process of the production method of the dissimilar material jointed body including the dissimilar material joining structure of figure 1, and showing a state in which the piercing part pierces an inner center of the recessing the first target joint member so as to bring a flap portion into contact with a surface of the first target joint member in the first step; Figure 2C is a sectional view showing the process of the production method of the dissimilar material jointed body including the dissimilar material joining structure of Figure 1, and showing a state in which one end of the rivet piercing part is spot welded to a second target joint member in a second step; Figure 3 is a perspective view showing the rivet and first target joint member in the state of Figure 2A as seen obliquely below; and Figure 4 is a sectional view showing a state in which the dissimilar material bonded body including the dissimilar material bonding structure of Figure 1 is heated. Detailed Description of Modalities
    [0019] A joint structure of different material and a method of producing a jointed body of different material according to an embodiment of the present invention will be described with reference to Figure 1 to Figure 4. Figure 1 shows a sectional view of a state in which the dissimilar material joint structure 10 according to the present embodiment is considered along an axial line CL of a rivet 16 (described in detail later).
    [0020] (Modality Configuration) As shown in figure 1, in the dissimilar material joining structure 10, a first target joining member 12 (top plate) in a laminar shape produced from resin and a second target joining member 14 (bottom plate) in a laminar shape produced from metal and which includes a portion facing the first target joint member 12 are joined together by a rivet 16 produced from metal. The dissimilar material joining structure 10 is applicable to various structural components to join the resin panel members to the metal panel members. As an example, the dissimilar material joining structure 10 is applicable to a structural component of a vehicle and, for example, the dissimilar material joining structure 10 is applicable to a structural component for joining a resin floor panel and a metal housing interior panel, a structural component for joining a resin floor panel and a metal instrument panel (front wall of an interior of a vehicle body), or the like.
    [0021] In the present embodiment, as an example, the first target joint member 12 is configured as a fiber reinforced resin member. A fiber reinforced resin material configuring the first target joint member 12 is a composite material formed of stiffened fibers (fiber reinforced) with resin material (carbon fiber reinforced plastic (CFRP) as an example in the present embodiment). This first target joint member 12 is applicable to a floor panel of a vehicle, for example.
    [0022] The first target joint member 12 is provided with a hole 24 which extends through the first target joint member 12 in a plate thickness direction thereof. The first target joint member 12 has a hole shape defined by rotating a shape as shown in Figure 1 around a central axial line (axial line corresponding to the axial line CL of the rivet 16 In the present embodiment) of the hole 24 More specifically, the first target joint member 12 includes a general part 20 having a predetermined plate thickness, and a projection part 22 which projects from the general part 20 towards the second target joint member 14. orifice 24 formed in the first target joint member 12 includes a small diameter hole part 26 formed in the general part 20 and a large diameter hole part 28 formed in the projection part 22. The small diameter hole part 26 and the large diameter orifice part 28 are defined to have respective constant internal diameter dimensions, and the internal diameter dimension of large diameter orifice portion 28 is defined to be greater than the inner diameter dimension of the small diameter hole part 26. An inner circumferential surface of the small diameter hole part 26 and an inner circumferential surface of the large diameter hole part 28 are connected by a connecting surface 27 orthogonal to a direction in which hole 24 extends through first target joining member 12.
    [0023] The projection part 22 is provided with a rest surface 22A across the entire outer circumference of an opening end 28A of the large diameter hole part 28 which faces the second target joint member 14, and as shown in Figure 3, the rest surface 22A is formed into an annular shape to be in surface contact with the second target joint member 14. An outside dimension of the diameter of the projection part 22 is set to be gradually smaller from the general part 20 towards the second target union member 14.
    [0024] In the present embodiment, as an example, the second target joining member 14 is configured as an aluminum alloy member. The second target joint member 14 includes a portion facing the hole 24 of the first target joint member 12 and an outer circumference thereof. The second target joint member 14 is applicable to an interior compartment panel or an instrument panel of a vehicle, for example.
    [0025] Meanwhile, the rivet 16 is configured by a material weldable to the second target joining member 14. The rivet 16 has a hole shape defined by rotating a shape as shown in Figure 1 around the axial line CL thereof ( see Fig. 3), and includes a rod-shaped part 30 and a head 36. The rod-shaped part 30 is disposed into the hole 24 of the first target joint member 12, and has an axial direction thereof along from the plate thickness direction of the first target joint member 12. The axial direction of the rivet 16 coincides with the axial direction of the rod-shaped part 30. The head 36 is integral with the rod-shaped part 30 at a first end. (upper end in the drawing) in the axial direction of the rod-shaped part 30, and is arranged outside the hole 24. This head 36 is formed to be a disk part, includes a center 36A in continuity with a rod-shaped part. 30, and a flap portion 36B that extends in a flap from center 36A.
    [0026] On the rivet 16, the tab portion 36B that configures a head portion 36 that is in surface contact with a surface 12X of the first target joint member 12, one end on a second end side (lower end in the drawing ) in the axial direction of the rod-shaped part 30 is joined to the second target joint member 14 via a spot welded part 18 (a point is indicated by "X"), thus keeping the first target joint member 12 between the flap portion 36B and the second target link member 14. The flap portion 36B is defined so as to overlap the entire rest surface 22A of the first target link member 12 as viewed in the axial direction of the rod-shaped portion 30. In the present embodiment, as an example, the diameter dimension of the head 36 is defined to be equal to a circular dimension of diameter of an outer circumferential end of the rest surface 22A.
    [0027] The shank portion 30 of the rivet 16 includes a shank 32 and a piercing portion 34. The shank 32 is formed in a short columnar shape that extends in the axial direction of the shank portion 30 from the center 36A of head 36 of rivet 16. The diameter dimension of shank 32 is defined to be less than the diameter dimension of head 36. Piercing portion 34 is integrally formed to be in continuity with an opposite side of shank 32 to the head 36.
    [0028] This piercing part 34 includes an enlarged diameter part 34A and a tapered part 34B. The enlarged diameter portion 34A is formed to be in continuity with the shank 32, and is defined to have a constant diameter dimension, which is greater than the diameter dimension of the shank 32, and less than the diameter dimension of the head 36. The tapered part 34B is formed on a side opposite the shank 32 so as to be in continuity with the enlarged diameter part 34A, and has a gradually reduced diameter towards the side opposite the enlarged diameter part 34A. A surface end of the tapered portion 34B is defined as a target joint surface 34C in a circular shape, and the target joint surface 34C is joined to the second target joint member 14 via the spot welded portion 18. In the present embodiment, the Diameter dimension of target joining surface 34C in piercing portion 34 is set to be slightly smaller than the diameter dimension of shank 32.
    [0029] A relationship between the aforementioned hole 24 of the first target joining member 12 and the shank-shaped part 30 of the rivet 16, and others beyond what has been described here. The small diameter hole portion 26 that configures a hole portion 24 is defined on the outer circumference of the shank 32, and has an inner diameter dimension equal to the diameter dimension of the enlarged diameter portion 34A. The large diameter hole part 28 that configures a hole part 24 is defined on the outer circumference of the piercing part 34, and has an inner diameter dimension greater than the diameter dimension of the enlarged diameter part 34A, and less than the diameter dimension of the head 36. A gap 38 is formed in a radial direction of the rod-shaped part 30 through the entire circumference between an inner circumferential surface of the hole 24 and an outer circumferential surface of the rod-shaped part 30. In the present embodiment, a radial gap dimension of the shank portion 30 between the shank 32 and the small diameter hole portion 26 is defined to be equal to a radial gap dimension of the shank portion 30 between the enlarged diameter 34A and the large diameter orifice part 28.
    [0030] The annular rest surface 22A provided to the projection part 22 is configured so that a Y dimension from an inner radial edge to an outer radial edge of the rest surface 22A is defined to be greater than a minimum value of the radial dimension of gap of the rod-shaped part 30 between the hole 24 and the rod-shaped part 30.
    [0031] (Method of producing the jointed body of different material, and operation and effect) A method of producing a jointed body of different material 10A which is a structural body that includes the aforementioned joining structure of different material 10 will be described, and the operation and effect of the aforementioned modality will also be described hereinafter.
    [0032] Fig. 2A and Fig. 2B show a first step of the method of producing the joined body of different material 10A (see Fig. 2C), and Fig. 3 shows a perspective view of the rivet 16 and the first target joint member 12 in the state of Figure 2A as viewed obliquely from below. Figure 2C shows a second stage of the method of producing the joined body of different material 10A.
    [0033] As shown in Figure 2A and Figure 3, the first target union member 12 in a state before the first target union member 12 and the second target union member 14 (see Figure 2C) are joined to each other not has a small diameter hole part 26 as shown in Figure 1. In the description and drawings, the reference numeral 12 is also applied to the first target joint member in a state in which the small diameter hole part 26 is formed in o. first target joint member 12. In figure 3, a planned position 26P in which the small diameter orifice part 26 (see figure 1) is to be formed is indicated by a chain line at two points. As shown in Figure 2A and Figure 3, in the first target joint member 12 before being joined to the second target joint member 14 (see Figure 2C), a recess 40 is formed in the projection part 22. The recess 40 is formed in the position where the aforementioned large diameter orifice part 28 (see figure 1) is formed. The inside diameter dimension of the recess 40 is defined to be greater than the diameter dimension of the enlarged diameter portion 34A of the rivet 16, and less than the diameter dimension of the head 36 of the rivet 16.
    [0034] As shown in Figure 2A, in the first step, the resting surface 22A of the first target joining member 12 is supported by a support base 42 in a cylindrical shape. The rivet 16 is disposed on the upper side of the first target joint member 12 such that the piercing part 34 is positioned immediately above an inner center (immediately above a fastening position) of the recess 40 of the first target joint member 12 , and the rivet 16 is pressed through a perforation 44 from above (see an arrow f). Specifically, in the first step, the piercing part 34 pierces the inner center part of the recess 40 of the first target joint member 12 from the surface 12X of the first target joint member 12 opposite a forming surface 12Y of the recess 40 2B, thus forming the small diameter hole portion 26 in the first target joint member 12, and causing the tab portion 36B of the rivet 16 to be in surface contact with the surface 12X of the first joint member 12. target joint 12. In Figure 2B, a part pierced from the first target joint member 12 by the pierced portion 34 of the rivet 16 is indicated by a reference numeral 12A.
    [0035] In the first step, it is unnecessary to previously form a through hole for the arrangement of the rivet 16 therethrough, and the rivet 16 is held to be tentatively held by the surface 12X of the first target joint member 12. Through the first step , the gap is formed across the entire outer circumference of the shank 32 between the inner circumferential surface of the small diameter hole portion 26 of the first target joint member 12 pierced by the piercing portion 34 in the first step and the shank 32 of the rivet 16 The inner diameter dimension of the recess 40 is defined to be greater than the diameter dimension of the enlarged diameter portion 34A of the rivet 16; therefore, the gap is formed across the entire outer circumference of the piercing part 34 of the rivet 16.
    [0036] Next, in the second step following the first step, the support base 42 is retracted in a direction away from the first target joint member 12, and the perforation 44 is retracted in a direction away from the rivet 16, and so, as shown in Figure 2C , the second target joint member 14 is arranged to face the first target joint member 12 on the forming surface 12Y of the recess 40. In the second step, a pair of electrodes 46 and 48 are arranged so that so as to hold the center 36A of the head 36 and the shank portion 30 of the rivet 16, and the second target joint member 14 therebetween, and while the first target joint member 12 is held between the tab portion 36B of the rivet 16 and the second target joint member 14, current is supplied through the pair of electrodes 46 and 48, thus spot welding the end of the piercing portion 34 of the rivet 16 to the second target joint member 14.
    [0037] Here, the diameter dimension of the head 36 that includes the flap part 36B is defined to be greater as both the diameter dimension of the enlarged diameter part 34A of the piercing part 34 and the inner diameter dimension of the recess 40 Therefore, a clamping force in the axial direction of the rivet 16 can be applied to the first target joint member 12 between the tab portion 36B and the second target joint member 14 through the entire outer circumference of the shank 32 of the rivet 16 and the piercing part 34. After the second step, the electrode 46 is retracted in one direction from the rivet 16, and the electrode 48 is retracted in one direction from the second target joining member 14.
    [0038] As mentioned above, the first target joint member 12 produced from resin and the second target joint member 14 produced from metal can be joined together using the rivet 16. In other words, p joint body of different material 10A according to the present embodiment is produced.
    [0039] In the dissimilar material joint body 10A which includes the dissimilar material joining structure 10 produced with the aforementioned production method, as shown in figure 1, the span 38 is formed in the radial direction of the rod-shaped part 30 through the entire circumference between the inner circumferential surface of the hole 24 of the first target joint member 12 and the outer circumferential surface of the rod-shaped portion 30 of the rivet 16. Therefore, during heating in a vehicle coating drying process, or similar, for example, even if a difference in elongation in the radial direction of the rod-shaped part 30 occurs between the first target joint member 12 and the second target joint member 14 due to a difference in linear expansion between them, the difference in elongation is absorbed by span 38, as shown in figure 4. Accordingly, it is possible to avoid or suppress a load input to the rod-shaped part 30 and to the hole 24 due to the difference in elongation above.
    [0040] For further explanation of Figure 4, the second target joint member 14 produced from metal is relatively elongated on the left in the drawing relative to the first target joint member 12 produced from a fiber reinforced resin due to heating ; thus, the rivet 16 joined to the second target joint member 14 relatively moves to the left in the drawing relative to the first target joint member 12. However, if the relative momentum of the rod-shaped portion 30 of the rivet 16 in relative to the inner circumferential surface of the hole 24 of the first target joining member 12 is less than a minimum length (in the left and right direction in the drawing) of the span 38 before heating, it is possible to prevent the rod-shaped part 30 from of the rivet 16 comes into contact with the inner circumferential surface of the hole 24, thus preventing load from entering the shank portion 30 and the hole 24. If the amount of relative movement of the shank portion 30 of the rivet 16 in relative to the inner circumferential surface of the hole 24 of the first target joining member 12 is equal to the minimum length (in the left and right direction in the drawing) of the span 38 before heating, the rod-shaped part 30 of the reb Item 16 is in contact with the inner circumferential surface of hole 24, but a load entry to the shank portion 30 and hole 24 is suppressed.
    [0041] Meanwhile, in the dissimilar material jointed body 10A which includes the dissimilar material joining structure 10 as shown in figure 1, since the first target joining member 12 is produced from a fiber reinforced resin, a distortion occurs due to the anisotropy of the reinforced fibers. However, in the first target joint member 12, the projection part 22 which projects from the general part 20 towards the second target joint member 14 is formed, and the rest surface 22A which is in surface contact with the second target joint member 14 is formed on the projection part 22; therefore, it is possible to suppress the influence of distortion compared to a structure which does not form part of the projection 22, and it is possible to make the first target joint member 12 come into surface contact with the second target joint member 14 with high precision .
    [0042] On the other hand, since the large diameter hole part 28 which has a larger inner diameter dimension than the small diameter hole part 26 is formed in the projection part 22, the rest surface 22A is defined in a position farther from the axial line CL of the rivet 16 compared to the contrast structure having in the large diameter hole part 28, for example. To deal with this, In the present embodiment, the tab portion 36B of the rivet 16 is set to overlap with the entire rest surface 22A of the first target joint member 12 as seen in the axial direction of the shank portion 30; therefore, even if the rest surface 22A is defined at a position distant from the axial line CL of the rivet 16, it is possible to apply a preferable clamping force in the axial direction of the rod-shaped part 30 to the first target joining member 12 between the tab portion 36B and second target joint member 14 through the entire outer circumference of shank portion 30 of rivet 16.
    [0043] In the present embodiment, as seen in the axial direction of the shank portion 30, the flange portion 36B of the rivet 16 is set to overlap with the entire rest surface 22A of the first target joint member 12, and the annular rest surface 22A formed in the projection part 22 is defined so that the dimension Y from the radially inner edge to the radially outer edge is defined to be greater than a minimum value of the span dimension in the radial direction of the shaped part rod 30 between the hole 24 and the rod-shaped part 30. If a difference in elongation in the radial direction of the rod-shaped part 30 occurs between the first target joint member 12 and the second target joint member 14 during heating, the relative movement in the radial direction of the rod-shaped part 30 occurs between the tab part 36B and the first target joint member 12, as shown in Fig. 4. In that case, even in the state in which the outer circumferential surface of the rod-shaped part 30 and the inner circumferential surface of the hole 24 are in contact with each other (not shown in the drawing), it is possible to apply a clamping force in the axial direction of the rod-shaped part 30 to the first member of target joint 12 between the tab portion 36B and the second target joint member 14 across the entire outer circumference of the shank portion 30 of the rivet 16.
    [0044] As mentioned above, according to the present embodiment, it is possible to maintain a preferable joint condition between the first target joint member 12 produced from resin and the second target joint member 14 produced from metal during heating even if the first target joint member 12 produced from resin and the second target joint member 14 produced from metal are joined together using the rivet 16.
    [0045] In the present embodiment, it is possible to join the second target joint member 14 and the rivet 16 together with the use of existing welding installation. Therefore, due to the fact that it is unnecessary to still provide the joint of the second target joint member 14 and the rivet 16, it is possible to reduce most of the cost by eliminating a new installation, compared to the case of providing such a new installation.
    [0046] (Supplementary Explanation of the Embodiment) In the aforementioned embodiment, the first target joining member 12 is produced from a carbon fiber reinforced plastic, but it can also be produced from another fiber reinforced plastic, such as a plastic fiberglass reinforced, or produced from resin that does not contain reinforced fibers. In the present embodiment, the second target joint member 14 is produced from an aluminum alloy, but the second target joint member 14 can also be produced from another metal, such as steel.
    [0047] In the present embodiment, the projection part 22 is provided to the first target joining member 12, but it can be configured so that no part corresponding to the projection part 22 of the aforementioned embodiment is provided, but the hole part of large diameter is formed in a part corresponding to the general part 20 of the aforementioned embodiment, for example.
    [0048] In the aforementioned embodiment, the outside diameter dimension of the projection part 22 is set to be gradually smaller from the general part 20 towards the second target joining member 14, but the outside diameter dimension of the projection part 22 may be constant over the entire length in the projection direction of the projection part 22.
    [0049] In the aforementioned embodiment, the piercing part 34 of the rivet 16 is joined to the second target joint member 14 through the spot welded part 18, but the piercing part of the rivet can be joined to the second target joint member through a welded part in addition to the spot welded part.
    [0050] As a variation of the aforementioned embodiment, the diameter dimension of the target joining surface 34C in the drill part 34 can be set to be equal to the diameter dimension of the shank 32, or it can be set to be greater than the dimension of rod diameter 32.
    [0051] In the aforementioned embodiment, the diameter dimension of the head 36 of the rivet 16 is defined to be equal to the diameter dimension of the circular shape formed at the outer circumferential end of the resting surface 22A of the first target joint member 12, but may be configured so that the diameter dimension of the rivet head is set to be greater than the diameter dimension of the circular shape formed at the outer circumferential end of the resting surface of the first target joint member. In such a configuration, for example, a radial dimension of the rivet head can be defined to be no less than a dimension obtained by adding a radial dimension of the circular shape formed at the outer circumferential end of the resting surface of the first target joint member. and the minimum value of the gap dimension in the radial direction of the rod-shaped part between the hole and the rod-shaped part. In this configuration, even if the outer circumferential surface of the rod-shaped part is in contact with the inner circumferential surface of the hole due to a difference in elongation in the radial direction of the rod-shaped part between the first target joining member and the second target joint member during heating, it is possible to maintain the overlap amount between the tab part of the rivet and the rest surface of the first target joint member as seen in the axial direction of the rod-shaped part.
    [0052] The descriptions "the span is defined" and "the flap part is defined to be overlapping with the entire rest surface as seen in the axial direction of the rod-shaped part" define the configuration in a normal time (during the no heating) as in the above-mentioned modality.
    [0053] The aforementioned modality and many variations can be practiced in appropriate combination of them.
    [0054] As mentioned above, an example of the present invention has been described, but the present invention is not limited to these descriptions and it will be clear that many modifications outside these descriptions can be realized within the technical scope that does not depart from the spirit of the invention.
    权利要求:
    Claims (4)
    [0001]
    1. Joint structure of different material, characterized in that it comprises: a resin member having a laminar shape, the resin member including an orifice extending through the resin member; a metal member having a laminar shape, the metal member including a portion facing the hole and an outer circumference of the hole; and a metal rivet (16) including: a shaft (30) disposed within the hole, the shaft having an axial direction extending in the plate thickness direction of the resin member; and a head (36) integral with a first end in the axial direction of the shaft, the head disposed outside the hole; wherein the rivet (16) is configured so that a flange portion (36B) of the head is in contact with a surface of the resin member, a second end in the axial direction of the shaft is joined to the metal member by a weld ( 18), and the flap part holds the resin member between the flap part and the metal member; the shaft (30) includes: a pillar extending from a center of the head (36); an enlarged diameter part (34A) in continuity with the pillar and having a diameter greater than the diameter of the pillar, and a perforation part (34) joined to the metallic joining member through the weld; the hole (24) includes: a small diameter hole part (26) that is adjacent to an outer circumference of the pillar, the small diameter hole part having an inner diameter equal to the diameter of the enlarged diameter part; and a large diameter hole part (28) which is adjacent to an outer circumference of the piercing part, the large diameter hole part having an inner diameter greater than the diameter of the enlarged diameter part; and an entire outer circumference of the shaft is separated from an entire inner circumferential surface of the hole by a radially extending span.
    [0002]
    2. Different material joining structure according to claim 1, characterized in that the resin member is a fiber reinforced member, and includes: a general part (20); and a projection part (22) projecting from the general part towards the metallic member, the projection part (22) including: a part where the large diameter hole part (28) is formed; and a rest surface (22A) formed across the entire outer circumference of an opening end in the large diameter orifice portion (28) facing the metal member (14), the rest surface being in surface contact. with the metallic member; and the flap portion (36B) is configured to overlap the entire rest surface (22A) as seen in the axial direction of the shaft.
    [0003]
    3. Method of producing a joined body of different material, the method of production by joining a resin member (12) having a laminar shape to a metal member (14) having a laminar shape by using a metal rivet (16) ; the resin member including first and second opposing surfaces and a projection portion projecting from the first surface and in which a recess is formed, the metal rivet including a shaft extending in an axial direction and a head integral with a first end in the axial direction of the shaft, the head having a diameter greater than a diameter of the shaft, the shaft including (i) a pillar extending from the center of the head, (ii) an enlarged diameter portion which is continuous with the abutment and has a diameter greater than a diameter of the abutment and smaller than the diameter of the head, and (iii) a drilling portion located at a second end in the axial direction of the shaft, the method characterized by comprising: a first step of drilling a center of the recess provided in the projecting portion of the resin member, the recess having an inside diameter greater than the diameter of the increased diameter portion of the metal rivet and less than the diameter of the head of the metal rivet alic, the piercing being performed by pressing the piercing portion on the resin member from the second surface of the resin member, so as to bring a head flap portion into contact with the second surface of the resin member; and a second step of arranging the metal member (14) so as to face the first surface of the resin member and contacting the projecting portion after the first step and welding an end of the rivet piercing portion to the member. metallic while the resin member is held between the rivet flange portion (16) and the metallic member (14).
    [0004]
    4. Production method according to claim 3, characterized in that in the second step, a pair of electrodes (46, 48) is arranged to support a center (36A) of the head (36) of the rivet (16). ), the shaft and the metallic member between the electrodes; and the pair of electrodes (46, 48) is supplied with current so as to weld the end of the piercing part of the rivet to the metal member.
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    同族专利:
    公开号 | 公开日
    CN106363917B|2018-09-14|
    RU2016129981A|2018-01-25|
    CN106363917A|2017-02-01|
    EP3121457A1|2017-01-25|
    EP3121457B1|2018-05-02|
    JP6260592B2|2018-01-17|
    US20170023038A1|2017-01-26|
    JP2017026079A|2017-02-02|
    BR102016015939A2|2017-01-31|
    US10364834B2|2019-07-30|
    AU2016204780A1|2017-02-09|
    KR20170012092A|2017-02-02|
    AU2016204780B2|2018-02-22|
    KR101882393B1|2018-07-26|
    RU2644827C2|2018-02-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1538027A|1976-04-20|1979-01-10|Furma Mfg Co Pty Ltd|Method and apparatus for riveting|
    JPS5926087Y2|1976-09-08|1984-07-30|
    JPS6032408Y2|1980-06-12|1985-09-27|
    JPS57205116A|1981-06-11|1982-12-16|Takiron Co Ltd|Attaching method of synthetic resin plate to metal plate|
    GB9501849D0|1995-01-31|1995-03-22|Avdel Systems Ltd|Method of fastening members of an assembly|
    DE69637674D1|1995-09-18|2008-10-23|Honda Motor Co Ltd|METHOD FOR CONNECTING OVERLAPPING EDGES OF TWO METALIC OBJECTS OF DIFFERENT MELTING TEMPERATURES|
    JP2000304015A|1999-04-21|2000-10-31|Araco Corp|Connecting structure of two sides resin made member|
    US6836948B2|2003-02-05|2005-01-04|General Motors Corporation|Method of joining a sheet metal part to a metal tube|
    US7347641B2|2004-03-31|2008-03-25|The Boeing Company|Methods and systems for joining structures|
    JP2005308116A|2004-04-22|2005-11-04|Toyota Motor Corp|Vehicle member fastening structure|
    DE102005006253B4|2005-02-11|2007-03-08|Daimlerchrysler Ag|Method for permanent fastening|
    FR2884564B1|2005-04-15|2011-01-14|Snecma Moteurs|METHOD OF ASSEMBLING TWO PARTS OF WHICH AT LEAST ONE IS OF COMPOSITE MATERIAL, INSERT FOR THE REALIZATION OF THE ASSEMBLY|
    DE102007030806A1|2007-07-03|2009-01-08|Ejot Gmbh & Co. Kg|Friction welding connection of several superimposed plates|
    DE102008017650A1|2008-04-04|2009-11-12|Airbus Deutschland Gmbh|Full rivet for joining composite components|
    DE102008031121A1|2008-05-06|2009-11-12|Daimler Ag|Schweißnietverbindung|
    JP2009285678A|2008-05-28|2009-12-10|Kobe Steel Ltd|Dissimilar material joining method and dissimilar material joined body between steel and light alloy, light alloy for joining dissimilar material for steel, and dissimilar material joining rivet between steel and light alloy|
    US8544715B2|2009-01-06|2013-10-01|GM Global Technology Operations LLC|Repairing a friction stir welded assembly|
    DE102010006670B4|2010-02-03|2020-12-31|Daimler Ag|Hot rivet connection and process for their production|
    DE102010047032A1|2010-09-30|2012-04-05|Benteler Automobiltechnik Gmbh|Method for connecting two metallic elements and connecting tool|
    WO2012117737A1|2011-03-02|2012-09-07|学校法人日本大学|Substrate joining method using rivet, and joining structure|
    JP5629244B2|2011-07-21|2014-11-19|株式会社神戸製鋼所|Dissimilar material joining member, dissimilar material joining method|
    DE102011055044A1|2011-11-04|2013-05-08|Newfrey Llc|Fastening element for welding, joining method and joint connection|
    JP5552109B2|2011-12-27|2014-07-16|株式会社神戸製鋼所|In-vehicle battery tray and in-vehicle battery frame|
    DE102012104364A1|2012-05-21|2013-11-21|Benteler Automobiltechnik Gmbh|Rivet, useful e.g. for coupling two components, comprises head portion, base extending over its height, radially encircling groove, undercut, and external circumferential rib, where head portion has round head-rivet portion|
    DE102012013325A1|2012-07-06|2014-10-30|Volkswagen Aktiengesellschaft|Joining of components made of different materials by means of a joining aid|
    JP5722479B2|2013-07-22|2015-05-20|株式会社神戸製鋼所|Dissimilar material joining rivet, dissimilar material joining member, dissimilar material joining method, and dissimilar material joining|
    JP5729429B2|2013-07-29|2015-06-03|トヨタ自動車株式会社|Junction structure and method of manufacturing junction structure|
    JP6252747B2|2013-11-22|2017-12-27|ポップリベット・ファスナー株式会社|Joining apparatus and joining method|
    KR102342932B1|2014-02-04|2021-12-24|부트벨딩 에스아|Connector and method of using the same|
    US10384296B2|2014-12-15|2019-08-20|Arconic Inc.|Resistance welding fastener, apparatus and methods for joining similar and dissimilar materials|
    JP6009004B2|2015-01-20|2016-10-19|株式会社神戸製鋼所|Forging rivet for dissimilar material joining and dissimilar material joining method|EP3013512B1|2013-06-26|2020-07-29|Howmet Aerospace Inc.|Resistance welding fastener, apparatus and methods|
    CA2938420C|2014-02-03|2020-03-10|Alcoa Inc.|Resistance welding fastener, apparatus and methods|
    US10384296B2|2014-12-15|2019-08-20|Arconic Inc.|Resistance welding fastener, apparatus and methods for joining similar and dissimilar materials|
    CN107208678B|2015-01-22|2018-10-30|日产自动车株式会社|The fastening structure of carbon-fiber reinforced resins material|
    US10035216B2|2015-08-27|2018-07-31|GM Global Technology Operations LLC|Method of joining multiple components and an assembly thereof|
    US10593034B2|2016-03-25|2020-03-17|Arconic Inc.|Resistance welding fasteners, apparatus and methods for joining dissimilar materials and assessing joints made thereby|
    BR112017024180A2|2015-09-16|2018-07-17|Arconic Inc|rivet feeding apparatus|
    US10337543B2|2017-04-04|2019-07-02|Multimaterial-Welding Ag|Securing a second object to a first object|
    DE102017115529A1|2017-07-11|2019-01-17|Böllhoff Verbindungstechnik GmbH|Welding auxiliary joining part|
    DE102018221157A1|2018-12-06|2020-06-10|Mahle International Gmbh|Joining device and joining method for establishing a connection between components|
    法律状态:
    2017-01-31| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2020-03-24| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-11-09| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2022-01-11| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/07/2016, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2015146628A|JP6260592B2|2015-07-24|2015-07-24|Dissimilar material joining structure and manufacturing method of dissimilar material joined body|
    JP2015-146628|2015-07-24|
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