JP2008185200A - Mounting part structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting part structure capable of preventing or suppressing looseness caused by a creep of compound material. <P>SOLUTION: In this mounting part structure, the amounts of screwing of the female screw part 20 of a metal insert 16 and the male screw part 30 of a flange nut 26 are varied, thereby setting an internal between the mating surface 16A of the metal insert 16 and the flange part 34 of the flange nut 26 in a position where a panel 14 is sandwiched therebetween. The male screw part 30 is screwed into the female screw part 20, thereby pressure-fitting the pressure-fitting part 32 of the flange nut 26 into the pressure-fitted part 22 of the metal inert 16 to fix the flange nut 26 to the metal insert 16. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention provides a mounting portion applied to mounting on a mounted body including a plate material made of a composite material of fibers and resin, and a base member fixed to one side in the plate thickness direction of the plate material. Concerning structure.

  A fastening structure is known in which a metal nut is embedded in a window frame composed of a three-dimensional composite fabric, and a composite presser plate superimposed on the window frame is fixed by a bolt screwed into the nut. (For example, refer to Patent Document 1).

However, in this prior art, there is a possibility that the fastening portion is loosened due to creep of the presser plate made of the composite material.
JP 2003-34296 A

  In view of the above fact, an object of the present invention is to provide an attachment structure that can prevent or suppress loosening due to creep of a composite material.

  The mounting portion structure of the present invention described in claim 1 includes a plate member made of a composite material of fiber and resin, and a base member fixed to one side in the plate thickness direction of the plate member with respect to the plate member. An attachment part structure applied to attachment to an attached body constituted by: an attachment member attached to the base member and sandwiching the plate material in the thickness direction between the base member and the base member And an interval setting means that is formed in a pair with the mounting member and can be screwed together, and the distance between the base member and the mounting member can be set at a position sandwiching the plate material by changing the screwing amount, A press-fitting fixing unit that is formed in a pair with the base member and the mounting member, and one of which is press-fitted into the other by screwing of the interval setting unit to fix the mounting member to the base member. .

  According to the mounting portion structure of the present invention as set forth in claim 1, the distance setting means is formed in pairs with the base member and the mounting member so that they can be screwed together, and the plate material is sandwiched by changing the screwing amount. Since the distance between the base member and the mounting member can be set, the load acting on the plate member by the base member and the mounting member can be suppressed by adjusting the distance. For this reason, creep of the plate material is suppressed. In addition, the press-fitting and fixing means formed in pairs with the base member and the mounting member are pressed into the other by screwing the distance setting means to fix the mounting member to the base member. The mounting member is firmly fixed to the base member with the plate member sandwiched therebetween, and loosening between the mounting member and the base member is prevented or suppressed.

  According to a second aspect of the present invention, there is provided the attachment portion structure according to the first aspect, wherein the attachment member is provided with a fastening portion into which a male screw member or a female screw member is screwed, and the male screw member or the female screw member. A fastening load is applied to the member to be fastened by screwing with the fastening portion.

  According to the mounting portion structure of the present invention described in claim 2, the fastening load is applied to the fastened member by screwing the male screw member or the female screw member and the fastening portion of the mounting member. However, a predetermined fastening load can be applied to the fastened member while maintaining the state where the plate material is sandwiched at a predetermined interval.

  According to a third aspect of the present invention, there is provided the mounting portion structure according to the first or second aspect, wherein the press-fitting portion by the press-fitting fixing means is provided at a portion separated from the plate material. To do.

  According to the mounting portion structure of the present invention described in claim 3, since the press-fitting portion by the press-fitting fixing means is provided at a portion separated from the plate material, the load acting on the side opposite to the base member across the plate material (For example, when the fastened member is fastened, the moment in the direction perpendicular to the axis acting on the fastened member) is efficiently received at the press-fitting site separated from the plate material.

  According to a fourth aspect of the present invention, there is provided the mounting portion structure according to any one of the first to third aspects, wherein a sealing means is provided between the mounting member and the other side in the plate thickness direction of the plate material. Is provided.

  According to the attachment portion structure of the present invention described in claim 4, since the sealing means is provided between the attachment member and the other side of the plate material in the plate thickness direction, the attachment member and the other of the plate material in the plate thickness direction are provided. Ingress of water between the sides is prevented or suppressed by the sealing means.

  As described above, according to the mounting portion structure according to claim 1 of the present invention, there is an excellent effect that loosening due to creep of the composite material can be prevented or suppressed.

  According to the mounting portion structure of the second aspect, the fastened member can be fastened to the hardened mounting member by a simple screwing structure, and the fastened member is fastened to the mounting member. This fastening load has an excellent effect that it can be set independently from the load acting on the plate material sandwiched between the base member and the mounting member.

  According to the attachment part structure of Claim 3, it has the outstanding effect that the load which acts on the opposite side to a base member on both sides of a board | plate material can be supported efficiently.

  According to the attachment part structure of claim 4, the excellent effect that the sealing means can prevent or suppress the intrusion of water between the attachment member and the other side in the plate thickness direction of the plate material. Have.

[First Embodiment]
A vehicle fastening portion structure 10 to which a mounting portion structure according to a first embodiment of the present invention is applied will be described with reference to FIGS. In the following description, the side indicated by the arrow IN in the figure is the panel inner side, and the side indicated by the arrow OUT is the panel outer side.

  FIG. 1 is a sectional view showing the overall configuration of the vehicle fastening portion structure 10. As shown in FIG. 1, the vehicle fastening portion structure 10 includes a panel 14 as a plate material constituting a part of a vehicle body (body) skeleton member, and one side of the panel 14 in the thickness direction of the panel 14. And a metal insert 16 as a base member (base metal member) fixed to the inner side of the panel. The structure is applied to attachment to a body 12 to be attached. A flange nut 26 as a metal mounting member) is attached, and a member to be fastened 44 as a part is fixed onto the flange nut 26 by fastening.

  The panel 14 is made of a composite material obtained by solidifying fibers (for example, carbon fibers) with a resin, that is, fiber reinforced plastic (FRP, for example, carbon fiber reinforced plastic (CFRP)). The metal insert 16 is made of metal (for example, aluminum alloy) in a block shape, and is disposed on the opposite side of the panel 14 with respect to the fastening portion of the fastened member 44, and is disposed on the panel 14 side. The joined surface 16A is joined to the inner side surface 14A of the panel 14 with an adhesive. In this embodiment, the metal insert 16 is bonded to the panel 14 with an adhesive. However, the metal insert 16 is solidified by pressing the metal insert 16 against the panel 14 before solidification. You may make it join.

  As shown in FIG. 3, a hole 18 is formed in the central portion of the metal insert 16, and a female screw portion 20 as a distance setting means is formed in the upper portion of the inner surface of the hole 18. The metal insert 16 exposes a portion including the hole 18 from a through hole 24 formed through the panel 14. As shown in FIG. 2B, the shaft portion 28 of the flange nut 26 is arranged in the hole portion 18, and the internal thread portion 20 of the hole portion 18 has a gap in the flange nut 26. The male screw portion 30 as setting means is screwable (screwable). Since the processing of the through hole 24 of the panel 14 and the hole 18 of the metal insert 16 is sufficient by drilling and female threading, it can be easily performed and the processing cost can be reduced.

  The flange nut 26 is made of metal (for example, aluminum alloy), and as shown in FIG. 3, a shaft portion 28 having a male screw portion 30 formed on the upper outer peripheral surface, and a radial direction at an upper portion of the shaft portion 28. And a flange portion 34 extending to the shaft center portion, and a screw hole 36 is formed in the shaft center portion. As shown in FIG. 2B, the flange portion 34 of the flange nut 26 sandwiches the panel 14 between the joining surface 16 </ b> A of the metal insert 16 in the plate thickness direction. In addition, the female screw portion 20 of the metal insert 16 and the male screw portion 30 of the flange nut 26 which are formed in pairs and can be screwed together are joined to the metal insert 16 at a position where the panel 14 is sandwiched by changing the screwing amount. The distance between the surface 16A and the flange portion 34 of the flange nut 34 can be set.

  As shown in FIG. 3, the hole 18 in the metal insert 16 is provided with a first taper portion 21 at a hole lower portion of the female screw portion 20, and the first taper portion 21 has an inner diameter on the hole upper side. It is formed in a tapered shape with a smaller inner diameter on the lower side of the hole. A press-fit portion 22 as press-fit fixing means having a smaller diameter than the inner diameter of the female screw portion 20 is formed in the lower portion of the hole of the first taper portion 21. The press-fit portion 22 is formed coaxially with the female screw portion 20. A second taper portion 23 that is reduced in diameter toward the hole lower side is formed at the hole lower portion of the press-fit portion 22. In addition, although the shape (surface) of the 1st taper part 21 and the shape (surface) of the 2nd taper part 23 are all the taper shape (surface) formed by drilling, this taper shape ( Surface) may be processed, and the shape of this portion may be changed to another shape (for example, a curved shape or a stepped shape).

  Further, the shaft portion 28 of the flange nut 26 disposed in the hole portion 18 in the metal insert 16 is formed with a tapered portion 31 that is reduced in diameter toward the shaft tip side at the shaft tip side portion than the male screw portion 30. A press-fit portion 32 as a press-fit fixing means is formed further on the shaft tip side than the taper portion 31. Further, in the shaft portion 28, the shaft base portion 29 that is closer to the flange portion 34 than the male screw portion 30 has a smaller diameter than the outer diameter of the male screw portion 30 (in other words, the inner diameter of the female screw portion 20). The press-fit portion 32 is coaxially formed with the male screw portion 30 and has a short cylindrical shape, and has an outer diameter dimension (in this embodiment, the press-fit portion 22 of the press-fit portion 22 that can be press-fitted (fit). The outer diameter dimension is set to be slightly slightly larger than the inner diameter dimension. Further, the center axis of the press-fit portion 32 and the center axis of the press-fit portion 22 are arranged coaxially in a state where the press-fit portion 32 is press-fit into the press-fit portion 22.

  The press-fit portion 22 of the metal insert 16 and the press-fit portion 32 of the flange nut 26 formed in a pair form a press-fit portion 32 that becomes one by screwing the female screw portion 20 of the metal insert 16 and the male screw portion 30 of the flange nut 26. Is pressed into the other press-fit portion 22 (functions as a press-fit load adding means), and the flange nut 26 is fixed to the metal insert 16. Further, as shown in FIG. 1, the press-fitted portion by the press-fit portion 22 of the metal insert 16 and the press-fit portion 32 of the flange nut 26 is on the opposite side to the side to which the fastened member 44 is fastened with the panel 14 interposed therebetween. And it is provided in the site | part spaced apart from the panel 14. FIG.

  As shown in FIG. 2A, the flange portion 34 of the flange nut 26 is a load receiving portion when the flange nut 26 is rotated about its axis, and is viewed in plan so that torque (rotational force) can be easily applied. The outer shape at is a hexagonal shape. Further, as shown in FIG. 2B, a seating surface 34 </ b> A that contacts and sits on the panel 14 is formed in a portion of the flange portion 34 near the shaft portion 28. In the flange portion 34, a mounting groove 34B for mounting an O-ring 40 as a sealing means is formed in a radially outer portion than the seating surface 34A. The mounting groove 34B has an annular shape when viewed from the bottom, and the O-ring 40 fitted and mounted in the mounting groove 34B has the opening side of the mounting groove 34B directed downward to facilitate handling. However, it does not fall off (does not come off) due to its own tension.

  When the flange nut 26 is fixed to the metal insert 16, the flange nut 26 is tightened until the seating surface 34 </ b> A of the flange portion 34 is seated on the outer surface 14 </ b> B of the panel 14, and the O-ring 40 is pressed against the panel 14. It is supposed to be crushed. That is, the amount of collapse of the O-ring 40 is controlled by contact between the seating surface 34A of the flange portion 34 and the outer surface 14B of the panel 14. In this way, by setting the seating surface 34A on the flange portion 34, an appropriate pressure is applied to the O-ring 40. When the flange nut 26 is fixed to the metal insert 16, the flange of the flange nut 26 is provided. An O-ring 40 is arranged with an appropriate surface pressure (in a sealed state) between the portion 34 and the outer side surface 14B (the other side in the plate thickness direction) of the panel 14.

  Further, in the vehicle fastening portion structure 10, a female screw portion 38 as a fastening portion into which a bolt 42 (see FIG. 1) as a male screw member is screwed is formed on the inner surface of the screw hole 36 of the flange nut 26. As shown in FIG. 1, the bolt 42 is formed by screwing a male screw portion 42 </ b> A penetrating the fastened member 44 into a female screw portion 38 of the flange nut 26, so that the head portion 42 </ b> B and the flange portion 34 of the flange nut 26. The to-be-fastened member 44 is fastened between. That is, in the vehicle fastening portion structure 10, a fastening load is applied to the fastened member 44 by screwing between the male screw portion 42 </ b> A of the bolt 42 and the female screw portion 38 of the flange nut 26. The fastening member 44 is fastened to the panel 14 side constituting a part of the vehicle body skeleton member.

(Action / Effect)
Next, the operation and effect of the above embodiment will be described.

  The female screw portion 20 of the metal insert 16 formed in a pair and the male screw portion 30 of the flange nut 26 can be screwed together, and the joining surface 16A of the metal insert 16 at a position sandwiching the panel 14 by changing the screwing amount. Since the interval between the flange nut 26 and the flange portion 34 can be set, the load acting on the panel 14 by the metal insert 16 and the flange nut 26 can be suppressed by adjusting the interval. For this reason, creep of the panel 14, that is, permanent deformation (so-called sag) compressed in the plate thickness direction is suppressed.

  Further, when the male screw portion 30 of the flange nut 26 is screwed into the female screw portion 20 of the metal insert 16, the press-fit portion 32 of the flange nut 26 is press-fitted into the press-fit portion 22 of the metal insert 16, and the flange nut 26 is inserted into the metal insert 16. 16 is fixed. That is, the flange nut 26 is firmly fixed to the metal insert 16 with the joining surface 16A of the metal insert 16 and the flange portion 34 of the flange nut 26 sandwiching the panel 14 at a predetermined interval. Looseness between the two is prevented or suppressed.

  As described above, according to the vehicle fastening portion structure 10 according to this embodiment, loosening due to creep of the panel 14 can be prevented or suppressed, and the flange nut 26 is firmly fixed to the metal insert 16. be able to. Even if creep occurs in the panel 14, the flange nut 26 is difficult to loosen from the metal insert 16.

  Further, a fastening load is applied to the fastened member 44 by screwing between the male threaded portion 42A of the bolt 42 and the female threaded portion 38 of the flange nut 26, so that the joining surface 16A of the metal insert 16 and the flange portion 34 of the flange nut 26 are connected. A predetermined fastening load can be applied to the fastened member 44 while maintaining the state where the panel 14 is sandwiched at a predetermined interval. In other words, the fastened member 44 can be fastened to the flange nut 26 that is difficult to loosen by a simple screwing structure, and a fastening load for fastening the fastened member 44 to the flange nut 26 is used as a metal insert. 16 and the load acting on the panel 14 sandwiched between the flange nuts 26 can be set independently.

  Further, since the press-fitting site where the press-fitting part 32 of the flange nut 26 is press-fitted into the press-fitted part 22 of the metal insert 16 is provided at a site separated from the panel 14, it is opposite to the metal insert 16 across the panel 14. The load acting on the side, for example, the moment M in the direction perpendicular to the axis acting on the fastened member 44 is efficiently received (supported) at the press-fitting site separated from the panel 14.

  Furthermore, since the O-ring 40 is disposed between the flange portion 34 of the flange nut 26 and the outer surface 14B of the panel 14 to ensure a predetermined surface pressure, the outer surface of the panel 14 can be used in a vehicle usage environment. Even if water is applied to 14 </ b> B, the intrusion of water between the flange portion 34 of the flange nut 26 and the outer surface 14 </ b> B of the panel 14 is prevented or suppressed by the O-ring 40. As a result, even if the fiber constituting a part of the panel 14 is a conductor and is a dissimilar material with the flange nut 26 or the metal insert 16, electric corrosion (contact corrosion) that occurs between the dissimilar materials due to the presence of water. ) Can be prevented or suppressed.

[Second Embodiment]
As shown in FIG. 4, the shape of the flange portion 34 of the flange nut 26 may be a substantially square shape in a plan view (strictly, a shape in which a square corner portion has an R shape). (Second Embodiment). That is, any shape other than the hexagonal shape in plan view may be used as long as it can generate torque for press-fitting the press-fit portion 32 into the press-fit portion 22 (see FIG. 3). Even with such a configuration to which the flange nut 26 is applied, the same operations and effects as in the first embodiment can be obtained.

[Third Embodiment]
As shown in FIG. 5, the vehicle fastening portion structure 50 to which the attachment portion structure according to the third embodiment of the present invention is applied is a flange nut instead of the O-ring 40 (see FIG. 1 and the like). 26, an adhesive 52 as a sealing means is applied between the flange portion 34 and the outer surface 14B of the panel 14. In FIG. 5, the same reference numerals are given to substantially the same components as those in the first embodiment, and description thereof will be omitted. According to the configuration of the third embodiment, the same operation and effect as the first embodiment can be obtained, and the mounting strength of the flange nut 26 on the panel 14 side (in other words, the fastened member 44 (see FIG. 1) ) Can be improved.

[Fourth Embodiment]
Next, a vehicle fastening portion structure 60 to which a mounting portion structure according to a fourth embodiment of the present invention is applied will be described with reference to FIG. As shown in FIG. 6, the vehicle fastening portion structure 60 is characterized in that a stud bolt 62 with a flange is used instead of the flange nut 26 (see FIG. 1 and the like). Note that components that are substantially the same as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 6, a stud bolt 62 as a mounting member (metal mounting member) is made of metal (for example, made of steel or aluminum alloy), a bolt main body 64 extended in the axial direction, and a bolt The main body 64 includes a flange portion 66 extending in the radial direction from the axial intermediate portion. In the bolt main body 64, the first shaft portion 70 on one end side in the axial direction (the lower end side in FIG. 6) sandwiching the flange portion 66 has a larger diameter than the second shaft portion 68 on the other end side. . The first shaft portion 70 and the second shaft portion 68 are formed coaxially. Further, a first male screw portion 72 is formed on the first shaft portion 70 near the flange portion 66, and a second male screw portion 69 is formed on the second shaft portion 68. In the present embodiment, the first shaft portion 70 has a larger diameter than the second shaft portion 68. However, if necessary, the outer diameter of the first shaft portion 70 and the outer diameter of the second shaft portion 68 The first shaft portion 70 may have a smaller diameter than the second shaft portion 68.

  The first male screw portion 72 as the interval setting means can be screwed (screwed) to the female screw portion 20 of the metal insert 16. Here, by changing the screwing amount between the first male screw portion 72 and the female screw portion 20, the distance between the joint surface 16A of the metal insert 16 and the flange portion 66 of the stud bolt 62 at a position sandwiching the panel 14 can be set. It has become.

  The first shaft portion 70 of the stud bolt 62 is formed with a taper portion 73 whose diameter is reduced toward the shaft tip side at the shaft tip side portion relative to the first male screw portion 72, and the shaft tip side further than the taper portion 73. The press-fit portion 74 as a press-fit fixing means is formed as a pair of the press-fit portions 22. The press-fit portion 74 is coaxially formed with the first male screw portion 72 and has a short cylindrical shape, and has an outer diameter dimension that can be press-fit (fit) into the press-fit portion 22 (in this embodiment, the press-fit portion). The outer diameter dimension is set to be slightly larger than the inner diameter dimension of 22. In a state where the press-fit portion 74 is press-fitted into the press-fit portion 22, the center axis of the press-fit portion 74 and the center axis of the press-fit portion 22 are arranged on the same axis. Further, the press-fit portion 74 is press-fitted into the press-fit portion 22 of the metal insert 16 by screwing the first male screw portion 72 of the stud bolt 62 formed in a pair with the female screw portion 20 of the metal insert 16, and the stud bolt 62. Is fixed to the metal insert 16.

  A seating surface 66 </ b> A for seating by contact with the panel 14 is formed at a portion of the flange portion 66 near the first shaft portion 70. A mounting groove 66B for mounting the O-ring 40 is formed in the flange portion 66 at a radially outer portion than the seating surface 66A. The seating surface 66A is substantially the same as the seating surface 34A (see FIG. 1 and the like) in the first embodiment, and the mounting groove 66B is the mounting groove 34B (see FIG. 1) in the first embodiment. And so on), and thus detailed description thereof will be omitted.

  A nut 76 as a female screw member is screwed into the second shaft portion 68 and a second male screw portion 69 as a fastening portion that penetrates the fastened member 44, whereby the nut 76 and the flange portion 66 of the stud bolt 62. The fastened member 44 is fastened between the two. That is, in the vehicle fastening portion structure 60, a fastening load is applied to the fastened member 44 by screwing the second male screw portion 69 of the stud bolt 62 and the nut 76. 44 is fastened to the panel 14 side constituting a part of the vehicle body skeleton member.

  Also by the configuration of the fourth embodiment as described above, the same operations and effects as those of the first embodiment can be obtained.

[Supplementary explanation of the embodiment]
In the above embodiment, the female thread portion 20 is formed in the metal insert 16 as the base member, and the male thread portions (the male thread portion 30 and the first male thread portion 72) are formed in the flange nut 26 and the stud bolt 62 as the attachment members. Formed, and these constitute the interval setting means, the male screw portion is formed on the base member and the female screw portion is formed on the attachment member, and the male screw portion and the female screw portion can be screwed together. Alternatively, the interval between the base member and the attachment member at a position where the plate member is sandwiched may be set by changing the screwing amount of the interval setting means.

  Moreover, in the said embodiment, while the press-fit part 22 is formed in the metal insert 16 as a base member, the press-fit parts 32 and 74 are formed in the flange nut 26 and the stud bolt 62 as attachment members, and these are press-fitted and fixed. For example, a short cylindrical protrusion projecting in the axial direction is formed at the bottom center of the hole 18 of the metal insert 16 and the shaft tip end of the flange nut 26 or stud bolt 62 ( A concave portion in which the convex portion can be press-fitted (fitted) can be formed in the tip portion on the side inserted into the hole portion 18, and the convex portion and the concave portion may be used as a press-fit fixing means. The convex portion (one) may be press-fitted into the concave portion (the other) to fix the mounting member to the base member.

  In the first to third embodiments, a female screw portion 38 (fastening portion) into which the bolt 42 (male screw member) is screwed is formed in the flange nut 26 (mounting member). In the fourth embodiment, a stud is used. The second male screw portion 69 (fastening portion) into which the nut 76 (female screw member) is screwed to the bolt 62 (mounting member) is formed, but the fastening portion to which the male screw member or the female screw member is screwed to the mounting member is formed. Without providing, for example, the mounting member is provided with a protruding portion that protrudes in the direction opposite to the protruding direction of the interval setting means such as the male screw portion, and the protruding portion for mounting the member by passing this protruding portion through the hole of the other member It is good.

  Further, in the above-described embodiment, the press-fitting site where the press-fitting parts 32 and 74 are press-fitted into the press-fitted part 22 is provided in a part separated from the panel 14, and such a configuration is preferable. The part may be provided in a part close to the plate material, or may be provided in both a part separated from the plate material and a part close to the plate material.

  Furthermore, in the above embodiment, the shape of the press-fit portions 32 and 74 that are press-fitted is cylindrical, but the shape of the press-fit portion that constitutes one of the press-fit fixing means is cylindrical, prismatic, and the tip side has a small diameter. It is good also as other shapes, such as truncated cone shape provided with the taper surface.

  In the above embodiment, the metal insert 16 (base member) is not joined to another member except that one surface is joined to the panel 14 (plate material), but the base member is joined to a plate material on a plurality of surfaces. Alternatively, the specific surface may be bonded to the plate material and the other surface may be bonded to a member other than the plate material.

  Moreover, although the said embodiment demonstrated the case where an attaching part structure was applied to the fastening part structure 10 for vehicles, 50, 60, an attaching part structure has other structures like the to-be-attached body in various apparatuses, for example. You may apply to the attachment to a to-be-attached body.

  Moreover, in the said embodiment, the to-be-attached body 12 shown by FIG. 3 is the panel 14 in which the through-hole 24 was formed, the metal insert 16 in which the hole part 18 was formed, the through-hole 24, the hole part 18, and The attachment body is formed by, for example, drilling holes and female threads after joining a panel (plate material) and a metal insert (base member). It is good. That is, after joining the panel 14 in which the through-hole (24) is not formed and the metal insert 16 in which the hole (18) is not formed, as shown in FIG. 7B, and then, as shown in FIG. 7 (B), a screw hole for a female screw portion having a diameter larger than that of the press-fit portion 22 in a portion closer to the panel outer side than the press-fit portion 22 by drilling. The part to be attached 12 may be obtained by forming the part 17 and further subjecting the threaded hole part 17 to female threading as shown in FIG. In this case, the internal thread portion 24A constituting a part of the interval setting means is also formed on the inner surface of the through hole 24 of the panel 14. In FIG. 7, components that are substantially the same as those in FIGS. 1 to 6 are denoted by the same reference numerals.

It is sectional drawing which shows the fastening part structure for vehicles which concerns on the 1st Embodiment of this invention in the fastening state of a to-be-fastened member. It is a figure which shows the state by which the flange nut which comprises the fastening part structure for vehicles which concerns on the 1st Embodiment of this invention was fixed to the metal insert. FIG. 2A is a plan view. 2B is a cross-sectional view taken along line 2B-2B of FIG. It is sectional drawing which shows the state before the flange nut which comprises the fastening part structure for vehicles which concerns on the 1st Embodiment of this invention is fixed to a metal insert. It is a figure which shows the flange nut which comprises the fastening part structure for vehicles which concerns on the 2nd Embodiment of this invention. FIG. 4A is a plan view. 4B is a cross-sectional view taken along the line 4B-4B of FIG. It is sectional drawing which shows the state by which the flange nut which comprises the fastening part structure for vehicles which concerns on the 3rd Embodiment of this invention was fixed to the metal insert. It is sectional drawing which shows the fastening part structure for vehicles which concerns on the 4th Embodiment of this invention in the fastening state of a to-be-fastened member. It is sectional drawing which shows one Embodiment of the hole part formation process of a to-be-attached body. FIG. 7A shows a molding process of the press-fit portion. FIG. 7B shows a process for forming a screw hole portion for the female screw portion. FIG. 7C shows a process for forming the female thread portion.

Explanation of symbols

10 Vehicle fastening part structure (mounting part structure)
12 Mounted object 14 Panel (plate material)
16 Metal insert (base member)
20 Female thread (interval setting means)
22 Press-fit part (press-fit fixing means)
24A Female thread (interval setting means)
26 Flange nut (mounting member)
30 Male thread (interval setting means)
32 Press-fit part (press-fit fixing means)
38 Female thread (fastening part)
40 O-ring (sealing means)
42 Bolt (Male thread member)
44 Fastened member 50 Vehicle fastening part structure (mounting part structure)
52 Adhesive (sealing means)
60 Vehicle fastening part structure (mounting part structure)
62 Stud bolt (mounting member)
69 Second male thread (fastening part)
72 1st male screw part (interval setting means)
74 Press-fit part (press-fit fixing means)
76 Nut (Female thread member)

Claims (4)

It is applied to attachment to a mounted body that includes a plate material made of a composite material of fiber and resin, and a base member fixed to one side of the plate material in the plate thickness direction with respect to the plate material. A mounting structure,
An attachment member attached to the base member and sandwiching the plate material in the thickness direction between the base member;
The base member and the mounting member are formed in pairs so that they can be screwed together, and the distance between the base member and the mounting member can be set at a position where the plate material is sandwiched by changing the screwing amount. Means,
A press-fit fixing means that is formed in a pair with the base member and the mounting member, and one is press-fitted into the other by screwing of the interval setting means, and the mounting member is fixed to the base member;
A mounting portion structure characterized by comprising:   The mounting member is provided with a fastening portion to which a male screw member or a female screw member is screwed, and a fastening load is applied to the fastening member by screwing the male screw member or the female screw member and the fastening portion. The mounting portion structure according to claim 1.   The attachment structure according to claim 1 or 2, wherein a press-fitting portion by the press-fitting and fixing means is provided at a portion separated from the plate material.   The attachment part structure according to any one of claims 1 to 3, wherein a sealing means is provided between the attachment member and the other side in the plate thickness direction of the plate member.

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