JP2008215465A - Fastening part structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fastening part structure capable of firmly fixing a fastening member to a part comprising a surface layer material composed of a composite material. <P>SOLUTION: This vehicular fastening part structure 10 has a car body skeleton member 12 composed of the composite material of fiber and resin, a GFRP block 20 constituted by hardening a textile of laminated glass fiber by a resin material and arranged in the car body skeleton member 12, and a metallic collar 22 with a flange pressed in a press-in hole 36 arranged in the GFRP block 20 so that the depth direction becomes the laminating direction of the textile of the glass fiber and receiving a fastening load for fastening a fastening object member 14. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fastening portion structure for fastening a member to be fastened to a portion configured to include a surface layer material made of a composite material of fibers and resin.

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).
JP 2003-34296 A

  However, Patent Document 1 does not disclose a structure in which a metal nut is embedded in a window frame made of a composite material.

  An object of the present invention is to obtain a fastening part structure capable of firmly fixing a fastening member to a portion configured to include a surface layer material made of a composite material in consideration of the above facts.

  The fastening part structure according to the invention of claim 1 is provided with a surface layer material made of a composite material of fiber and resin, and provided inside the surface layer material, and a laminated glass fiber fabric is hardened with a resin material. The configured block-like internal member and the fastening load for fastening the fastened member are received by being press-fitted into a hole provided in the internal member so that the depth direction is the lamination direction of the glass fiber fabric. And a fastening member.

  In the fastening part structure according to claim 1, the fastening member is fixed to the surface layer material by press-fitting the fastening member into an internal member provided inside the surface layer material. Here, since the block-like internal member is formed by laminating a woven fabric (cloth material) of glass fiber, the glass exposed to the hole wall of the press-fitting hole like a configuration in which the fibers are oriented in a specific direction. The fiber is not broken by press fitting, and the load from the fastening member (fastened member) can be supported by the entire internal member. And since the internal member comprised using the glass fiber has low compressive strength compared with the case where it comprises with CFRP using carbon fiber, for example, it can restrain the load required for the press-fitting of the member for fastening. In other words, the fixing by press-fitting the fastening member to the internal member can be made into a practical structure.

  Thus, in the fastening part structure according to the first aspect, the fastening member can be firmly fixed to the part configured to include the surface material made of the composite material.

  A fastening part structure according to a second aspect of the present invention is the fastening part structure according to the first aspect, wherein the fastening member is made of a metal material.

  In the fastening part structure according to claim 2, since the fastening member is made of a metal material, a required mechanical strength can be secured in the fastening part.

  A fastening part structure according to a third aspect of the present invention is the fastening part structure according to the first or second aspect, wherein a fastening screw part is formed on the fastening member.

  In the fastening part structure according to claim 3, for example, a fastening member such as a nut or a bolt is screwed to a thread part of the fastening member, and the fastened member is fixed by fastening between the fastening member and the fastening tool. can do.

  The fastening part structure according to a fourth aspect of the invention is the fastening part structure according to any one of the first to third aspects, wherein the fastened member is fastened to the press-fitting side of the fastening member with respect to the internal member. Is done.

  In the fastening part structure according to the fourth aspect, since the fastened member is fastened to the press-fitting side of the fastening member with respect to the internal member, the fastening member can be fixed without penetrating the internal member.

  According to a fifth aspect of the present invention, there is provided a fastening portion structure according to any one of the first to fourth aspects, wherein the fastening member is disposed on a side opposite to the press-fitting side of the fastening member with respect to the inner member. The fastening member is fastened.

  In the fastening part structure according to claim 5, since the fastened member is fastened to the side opposite to the press-fitting side of the fastening member with respect to the internal member, the fastened member is fastened with the fastening member penetrating the internal member. (Supports the fastening load).

  The fastening part structure according to the invention of claim 6 is the fastening part structure according to any one of claims 1 to 5, wherein the fastening member is bonded to the surface layer material.

  In the fastening part structure according to the sixth aspect, since the fastening member and the surface layer material are bonded, a path through which water or the like enters can be closed.

  As described above, the fastening portion structure according to the present invention can firmly fix a fastening member to a portion configured to include a surface material made of a composite material.

  A vehicle fastening part structure 10 to which a fastening part structure according to an embodiment of the present invention is applied will be described with reference to FIGS. 1 and 2. In the following description, for the sake of convenience, the side indicated by the arrow U is the upper side, and the side indicated by the arrow L is the lower side, but this limits the application direction of the vehicle fastening portion structure 10 to the vehicle body. There is no.

  FIG. 1 is a sectional view showing the overall configuration of the vehicle fastening portion structure 10. As shown in this figure, the vehicle fastening portion structure 10 is a structure for fastening a fastened member 14 to a vehicle body skeleton member 12 having a closed cross-sectional structure by fastening. This will be specifically described below.

  The vehicle body skeleton member 12 includes a lower panel 16 having a cross-sectional hat shape made of carbon fiber reinforced plastic (CFRP) as a composite material formed by solidifying carbon fibers with a resin, and a flat plate shape joined to a flange 16A of the lower panel 16. The upper panel 18 is configured as a main part. Although not shown, the vehicle body skeleton member 12 is elongated in the direction perpendicular to the cross section shown in FIG. In the vehicle fastening portion structure 10, a GFRP block 20 is disposed at a portion where the fastened member 14 is fastened in the longitudinal direction of the vehicle body skeleton member 12. In this embodiment, the vehicle body skeleton member 12 (at least a part thereof) corresponds to the surface layer material in the present invention, and the GFRP block 20 corresponds to the internal member.

  The GFRP block 20 is formed by forming a glass fiber reinforced plastic into a block shape. As shown in FIG. 1, the GFRP block 20 is formed on the body skeleton member 12 so that the periphery thereof contacts the inner surface of the body skeleton member 12 over the entire circumference. Covered. Supplementing the GFRP block 20, the GFRP block 20 is formed by laminating a large number of glass fiber two-dimensional woven fabrics (hereinafter referred to as GF cloth materials) that are laminated in the thickness direction. The stacking direction of the GF cloth material coincides with the vertical direction (opposite direction of the bottom wall 16B of the lower panel 16 and the upper panel 18).

  A metal collar 22 with a flange as a fastening member is embedded in the GFRP block 20. The flanged metal collar 22 is configured such that a flange 26 is coaxially and integrally extended from one end (upper end) in the axial direction of a collar body 24 having a substantially bottomed cylindrical shape. Further, a screw hole 25 opening upward is formed in the axial center portion of the collar body 24, and a female screw portion 25 </ b> A as a screw portion is formed on the inner surface of the screw hole 25.

  The metal collar 22 with flange is embedded in the GFRP block 20 (a press-fit hole 36 described later) up to the flange 26 by press-fitting, and a portion including the screw hole 25 is exposed from the counterbore 27 formed in the upper panel 18. ing. In this embodiment, the exposed portion of the flanged metal collar 22 from the counterbore hole 27 is formed so that the opening end surface of the screw hole 25 in the collar body 24 and the end surface of the flange 26 are substantially flush with each other to form the washer contact surface 22A. It is composed. That is, the counterbore hole 27 is exposed to a part of the flange 26. On the other hand, the portion of the flange 26 covered with the upper panel 18 is bonded to the upper panel 18. For this reason, an adhesive layer S is formed between the upper panel 18 and the flange 26 (the radially outer side of the washer contact surface 22A).

  Further, the vehicle fastening portion structure 10 includes a stepped washer 28 interposed between the fastened member 14 and the vehicle body skeleton member 12, that is, the flanged metal collar 22. The stepped washer 28 is configured such that a flange 32 is coaxially and integrally extended from one end side in the axial direction of a boss portion 30 formed in a short cylindrical shape. The outer diameter of the boss part 30 is slightly smaller than the inner diameter of the counterbore hole 27, and the inner diameter is slightly larger than the inner diameter (maximum diameter) of the screw hole 25. Further, the outer diameter of the flange 32 is sufficiently larger than the inner diameter of the counterbore hole 27.

  In the stepped washer 28, a portion of the boss portion 30 that protrudes in the axial direction from the flange 32 is a spacer portion 30A as a distance setting means. The spacer portion 30 </ b> A has the washer contact surface 22 </ b> A and the flange 32 in a state where the end surface 30 </ b> B opposite to the extending side of the flange 32 in the boss portion 30 is abutted against the washer contact surface 22 </ b> A of the flanged metal collar 22. The interval is maintained at a constant interval.

  The stepped washer 28 sandwiches the upper panel 18 forming a surface layer between the flange 32 and the flange 26 of the flanged metal collar 22. The upper panel 18 and the flange 32 are bonded. That is, the adhesive layer S is formed between the upper panel 18 and the flange 32. In this embodiment, the adhesive layer S is also formed between the edge portion of the counterbore 27 in the upper panel 18 and the spacer portion 30A. In the vehicle fastening portion structure 10, the adhesion layer S prevents water from entering the vehicle body skeleton member 12.

  The vehicle fastening portion structure 10 includes a bolt 34 as a fastener. The bolt 34 is screwed into a female thread portion 25A of the flanged metal collar 22 with a male thread portion 34A penetrating the fastened member 14 and the stepped washer 28, thereby being stepped with the head portion 34B as its load receiving portion. The fastened member 14 is fastened with the attached washer 28. That is, in the vehicle fastening portion structure 10, the fastened member 14 is fastened to the vehicle body skeleton member 12 by the flanged metal collar 22 (female screw portion 25A) and the bolt 34 as fastening means.

  The vehicle fastening portion structure 10 described above includes, for example, a vehicle body such as a dash cross member that fastens a vehicle body part such as a suspension member to a vehicle body skeleton member 12 as a front side member or a rear side member, or is embedded in a dash panel or the like. It is used for applications such as fastening a connecting member interposed between the skeleton member 12 and the front side member. In this embodiment, the fastened member 14 is supported by the plurality of vehicle fastening part structures 10 provided on the vehicle body skeleton member 12 or is shared by the vehicle fastening part structures 10 provided respectively on the plurality of vehicle body skeleton members 12. The to-be-fastened member 14 is supported, and the vehicle body skeleton member 12 and the to-be-fastened member 14 do not rotate relative to each other around the bolt 34 (angular displacement).

  Next, the fastening (assembly) procedure of the vehicle fastening portion structure 10 will be described with reference to FIG. In assembling the vehicle fastening portion structure 10 having the above-described configuration, first, as shown in FIG. 2A, the GFRP block 20 is subjected to hole processing and countersink processing, and the press fitting into which the collar body 24 enters the GFRP block 20 is performed. A hole 36 is formed, and a counterbore hole 38 into which the flange 26 enters is formed. Next, as shown in FIG. 2B, the flanged metal collar 22 is press-fitted into the GFRP block 20 in which the press-fitting hole 36 and the counterbore hole 38 are formed. That is, the collar body 24 is press-fitted into the press-fitting hole 36 and the flange 26 is fitted into the counterbore hole 38.

  Next, as shown in FIG. 2C, the vehicle body skeleton member 12 is molded so as to wrap the collar body 24 into which the flanged metal collar 22 is press-fitted. Specifically, the GFRP block 20 is placed on a mold in which the lower panel 16 is molded, and the upper surface 20A of the GFRP block 20, the opening surface of the screw hole 25 in the collar body 24, and the upper surface of the flange 26 (washer contact surface). 22A) is coated with an adhesive, and the upper panel 18 is molded so as to close the open end of the lower panel 16. The vehicle body skeleton member 12 is fired from this state.

  Next, as shown in FIG. 2 (D), hole processing is performed from the outside of the upper panel 18 to form a screw hole 25 in the metal collar 22 with flange, and further, a female thread portion 25A is formed in the screw hole 25 by threading. . Thereafter, a countersink hole 27 is formed by countersink processing as shown in FIG. By this countersinking process, the adhesive layer S is removed so that the washer contact surface 22A is exposed. In this case, a part of the flanged metal collar 22 may be turned over.

  Next, an adhesive is applied to the lower surface of the flange 32 of the stepped washer 28 and the outer peripheral surface of the spacer portion 30 </ b> A, so that the spacer portion 30 </ b> A is inserted into the counterbore 27 as shown in FIG. The attached washer 28 is placed on the vehicle body skeleton member 12. In this state, the stepped washer 28 is temporarily held on the vehicle body skeleton member 12 by bonding the flange 32 and the upper panel 18.

  Then, the fastened member 14 is placed on the stepped washer 28, and the male thread portion 34A of the bolt 34 is screwed into the female thread portion 25A of the metal collar 22 with flange. By screwing the bolt 34 to the flanged metal collar 22, the upper panel 18 positioned between the flange 32 of the stepped washer 28 and the flange 26 of the flanged metal collar 22 receives a fastening (compression) load and is stepped. The end face 30B of the washer 28 is seated on the washer contact face 22A of the flanged metal collar 22. From this state, the bolt 34 is further rotated in the screwing direction to increase the screwing amount of the bolt 34 to the flanged metal collar 22. Thereby, as shown in FIG. 1, the vehicle fastening portion structure 10 in which the fastened member 14 is fastened and fixed to the vehicle body skeleton member 12 is obtained.

  Next, the operation of this embodiment will be described.

  In the vehicle fastening portion structure 10 configured as described above, the fastened member 14 is fixed to the vehicle body skeleton member 12 by fastening. Specifically, the fastened member 14 is fixed to the vehicle body skeleton member 12 by a fastening load acting between the stepped washer 28, that is, the flanged metal collar 22 and the head portion 34B.

  Here, in the vehicle fastening portion structure 10, the GFRP block 20 to which the flanged metal collar 22 is fixed is composed of GFRP in which glass fibers are solidified with resin. Compared with the case where a block material for fixing the flanged metal collar 22 is formed, the compressive strength is low. For this reason, in the fastening part structure 10 for vehicles, compared with the case where the metal collar 22 with a flange is press-fitted in the block material comprised by CFRP, the metal collar 22 with a flange is press-fitted in the GFRP block 20 with a small press-fitting load. 36 can be press-fitted. Thereby, in this embodiment, the structure which fixes the metal collar 22 with a long flange which penetrates the press-fit hole 36 to the GFRP block 20 by press-fit is realized. That is, in the vehicle fastening portion structure 10, a structure in which the flanged metal collar 22 is fixed by press-fitting by using the GFRP block 20 has been made practical.

  In the vehicle fastening portion structure 10, the glass fibers constituting the GFRP block 20 are configured by laminating GF cloth materials, so that they are exposed to the hole wall 36 </ b> A (see FIG. 2A) of the press-fit hole 36. The glass fiber to be bent is bent or broken before the flanged metal collar 22 is press-fitted. Therefore, in the vehicle fastening portion structure 10, the glass fiber is not broken with the press-fitting of the flanged metal collar 22, and the load from the flanged metal collar 22 can be received by the entire GFRP block 20. For example, in a configuration in which carbon fibers oriented (straight) along a predetermined direction are stacked (the fiber direction of each layer may be different), the end face of the straight carbon fiber is formed on the hole wall 36A of the press-fit hole 36. Since it is exposed, the straight carbon fiber breaks with the press-fitting of the flanged metal collar 22, and a sufficient load cannot be transmitted by the carbon fiber from the flanged metal collar 22 to the GFRP block 20. On the other hand, in the vehicle fastening part structure 10, as described above, the GF cloth material is laminated and the glass fiber itself has a lower elasticity than the carbon fiber, so that the metal collar 22 with flange is press-fitted. The glass fiber is prevented from being broken, and the load from the flanged metal collar 22 can be received substantially uniformly by the entire GFRP block 20.

  Thus, in the vehicle fastening portion structure 10, the load from the flanged metal collar 22 (for example, the above-described fastening member 14 such as the suspension member) is reliably transmitted to the vehicle body skeleton member 12 through the GFRP block 20. Can do. Further, since the flanged metal collar 22 is fixed to the GFRP block 20 by press-fitting, for example, the flanged metal collar 22 may be loose as in the configuration in which the flanged metal collar 22 is fixed to the GFRP block 20 by adhesion. Is prevented.

  Further, in the vehicle fastening portion structure 10, the gap between the flange 26 of the flanged metal collar 22 and the upper panel 18 and the gap between the flange 32 of the stepped washer 28 and the upper panel 18 are sealed with the adhesive layer S, respectively. Intrusion of water into the vehicle body skeleton member 12 is prevented. Thereby, in the fastening part structure 10 for vehicles, the electrolytic corrosion of the metal collar 22 with a flange and the volt | bolt 34 is prevented.

  Next, another embodiment of the present invention will be described. Note that parts or portions that are basically the same as those in the first embodiment or the above-described configuration are denoted by the same reference numerals as those in the first embodiment or the previous configuration, and the description thereof is omitted. May be omitted.

(Second Embodiment)
FIG. 3 is a sectional view showing a vehicle fastening portion structure 40 according to a second embodiment of the present invention. As shown in this figure, the vehicle fastening portion structure 40 includes a GFRP block 44 in which the press-fitting hole 42 does not penetrate in the vertical direction instead of the GFRP block 20 in which the press-fitting hole 36 penetrates in the vertical direction. This is different from 10 according to the embodiment.

  Specifically, in the vehicle fastening portion structure 40, the vertical height of the vehicle body skeleton member 46 as the surface layer material is greater than the downward height of the vehicle body skeleton member 12 constituting the vehicle fastening portion structure 10. Correspondingly, the vertical height of the GFRP block 44 is made larger than the downward height of the GFRP block 20. On the other hand, the flanged metal collar 22 for fastening the fastened member 14 is common to the flanged metal collar 22 in the vehicle fastening portion structure 10.

  For this reason, in the vehicle fastening portion structure 40, the press-fit hole 42 for fixing the GFRP block 20 does not need to penetrate the GFRP block 44, and has a depth sufficient to press-fit the flanged metal collar 22. . Other configurations of the vehicle fastening portion structure 40 are the same as the corresponding configurations of the vehicle fastening portion structure 10.

  Therefore, also by the vehicle fastening part structure 40 according to the second embodiment, a similar effect can be obtained basically by the same operation as the vehicle fastening part structure 10 according to the first embodiment. In this vehicle fastening portion structure 40, since the fastened member 14 is fastened to the press-fitting side of the flanged metal collar 22, the flanged metal collar 22 (press-fit hole 42) does not penetrate the GFRP block 44. Realized. This configuration is suitable for fixing the flanged metal collar 22 having a length corresponding to the required fastening strength (rigidity) in the configuration in which the fastened member 14 is fastened to the vehicle body skeleton member 46 having a large vertical dimension. Applies to In such a configuration, the weight can be reduced as compared with a configuration in which, for example, a metal flanged metal collar 22 having a large specific gravity passes through the GFRP block 44.

(Third embodiment)
FIG. 4 is a sectional view showing a vehicle fastening portion structure 50 according to a third embodiment of the present invention. As shown in this figure, the vehicle fastening portion structure 50 includes a first metal collar 52 with a flange that is press-fitted into the GFRP block 20 from the side opposite to the fastening side of the fastened member 14. This is different from the vehicle fastening portion structure 10 according to the embodiment. 4 and 5 are shown as side sectional views of the vehicle body skeleton member 12, the structure of the vehicle body skeleton member 12 and the GFRP block 20 is the same as that of the vehicle body skeleton member 12 and the GFRP block in the vehicle fastening portion structure 10. 20 configurations are common.

  The flanged metal collar 52 is configured such that a flange 54 is coaxially and integrally extended from one end (lower end) in the axial direction of the collar body 24 having a substantially bottomed cylindrical shape. The flanged metal collar 52 is embedded in the GFRP block 20 and exposes the upper end surface of the collar body 24 including the screw holes 25 from the through holes 56 formed in the upper panel 18 over substantially the entire surface. An upper end surface of the collar body 24 is a contact surface 24A on which the fastened member 14 contacts, and the contact surface 24A is substantially flush with the surface of the upper panel 18.

  In the flanged metal collar 52, the flange 54 is bonded to the bottom wall 16 </ b> B of the lower panel 16 in the press-fitted state to the GFRP block 20. That is, the flanged metal collar 52 is press-fitted into the press-fit hole 36 from the insertion hole 58 formed in the bottom wall 16B of the lower panel 16 so as to communicate with the press-fit hole 36. An adhesive layer S is formed between the flange 54 and the bottom wall 16B of the lower panel 16. In the vehicle fastening portion structure 50, the adhesive layer S prevents water from entering the vehicle body skeleton member 12.

  And in the fastening part structure 50 for vehicles, the volt | bolt 34 is the head as the load receiving part by screwing the external thread part 34A which penetrated the to-be-fastened member 14 with the internal thread part 25A of the metal collar 52 with a flange. The fastened member 14 is fastened between the portion 34B and the flanged metal collar 52 (color main body 24). That is, in the vehicle fastening portion structure 50, the fastened member 14 is fastened to the vehicle body skeleton member 12 by the flanged metal collar 52 (female screw portion 25A) and the bolt 34 as fastening means.

  Next, the fastening (assembly) procedure of the vehicle fastening portion structure 50 will be described with reference to FIG. In assembling the vehicle fastening portion structure 10 having the above configuration, first, as shown in FIG. 5A, the flanged metal collar 52 before the press-fitting hole 36 is formed is disposed between the upper panel 18 and the lower panel 16. And bonded to both the upper panel 18 and the lower panel 16. The vehicle body skeleton member 12 is fired from this state. Next, as shown in FIG. 5B, a through hole 56, a press-fit hole 36, and an insertion hole 58 are formed in the same process so as to penetrate both the vehicle body skeleton member 12 and the flanged metal collar 52.

  Next, as shown in FIG. 5C, the flanged metal collar 52 is press-fitted into the press-fit hole 36 of the flanged metal collar 52 through the insertion hole 58 with the contact surface 24A at the head. At this time, an adhesive is applied to the flange 54, and the flanged metal collar 52 is press-fitted into the press-fitting hole 36 of the GFRP block 20 until the flange 54 is bonded to the bottom wall 16B of the lower panel 16 (depth). To do. In this state, as shown in FIG. 5D, the contact surface 24 </ b> A of the flanged metal collar 52 is exposed from the through hole 56 so as to be substantially flush with the surface of the flat upper panel 18.

  Next, as shown in FIG. 5E, hole machining is performed from the outside of the upper panel 18 to form a screw hole 25 in the flanged metal collar 52, and further, a female thread portion 25A is formed in the screw hole 25 by threading. . Then, as shown in FIG. 5 (F), the fastened member 14 is placed on the contact surface 24A of the collar body 24 constituting the flanged metal collar 52, and the male thread portion 34A of the bolt 34 is connected to the flanged metal. The collar 52 is screwed into the female thread portion 25A. By screwing the bolt 34 into the flanged metal collar 52, a vehicle fastening portion structure 50 in which the fastened member 14 is fastened and fixed to the vehicle body skeleton member 12 is obtained as shown in FIG. 4.

  As described above, in the vehicle fastening portion structure 50 according to the third embodiment, the GFRP block 20 formed by solidifying a number of GF cross members stacked in the thickness direction with a resin is provided in the stacking direction of the GF cross materials. In the configuration in which the press-fitting hole 36 having the axial direction matched is formed, and the flanged metal collar 52 (collar body 24) is press-fitted into the press-fitting hole 36, it is common with the vehicle fastening portion structure 10. Therefore, also by the vehicle fastening portion structure 50 according to the third embodiment, the same effect can be obtained by basically the same operation as the vehicle fastening portion structure 10 according to the first embodiment.

  Further, in the vehicle fastening portion structure 50, the flanged metal collar 52 is press-fitted into the body frame member 12 (GFRP block 20) by pressing the flanged metal collar 52 from the side opposite to the fastening member 14 and the fastening side. Has a structure penetrating the GFRP block 20.

(Fourth embodiment)
FIG. 6 is a sectional view showing a vehicle fastening portion structure 60 according to a fourth embodiment of the present invention. As shown in this figure, the vehicle fastening portion structure 60 is formed by a bolt 62 and a nut 64 in which upper and lower members 14 (located on both sides of the flanged metal collar 52 in the press-fitting direction) constitute fastening means. It is different from the vehicle fastening portion structure 50 according to the third embodiment in that it is fastened.

  Specifically, the vehicle fastening portion structure 60 includes a flanged metal in which a bolt through hole 66 that penetrates the collar body 24 and the flange 54 is formed instead of the collar body 24 having the screw holes 25 formed therein. A collar 68 is provided. In this vehicle fastening portion structure 60, a nut 64 is provided at the tip of the male threaded portion 62 </ b> A of the bolt 62 that penetrates the upper fastening member 14, the bolt through hole 66 of the flanged metal collar 68, and the lower fastening member 14. Are fastened together to fasten the fastened member 14 between the head 62B and the flanged metal collar 68 and between the nut 64 and the flanged metal collar 68. Other configurations of the vehicle fastening portion structure 60 are the same as the corresponding configurations of the vehicle fastening portion structure 50.

  Therefore, even with the vehicle fastening portion structure 60 according to the fourth embodiment, the vehicle fastening portion structure 50 according to the third embodiment (the vehicle fastening portion structure 10 according to the first embodiment) basically. Similar effects can be obtained by similar actions.

  Thus, this invention can be set as the structure which the metal collar 68 with a flange as a member for fastening does not have female thread part 25A or a male thread part. In other words, the fastening portion in the present invention only needs to have a structure that is pressed into the GFRP blocks 20 and 44 to support (receive) the fastening load. Moreover, in the 1st thru | or 3rd embodiment, although the screw hole 25 as a screw part for fastening was formed in the metal collars 22 and 52 with a flange, this invention is not limited to this, For example, The male thread portion may protrude from the flanged metal collar 22 or the like.

  In each of the above-described embodiments, the example in which the fastening portion structure of the present invention is applied to the application of fixing a part to the skeleton member 12 of the automobile has been shown. However, the present invention is not limited to this and is applied to various applications. Needless to say, this is possible.

It is sectional drawing which shows the fastening part structure for vehicles which concerns on the 1st Embodiment of this invention. It is a figure which shows the assembly process of the fastening part structure for vehicles which concerns on the 1st Embodiment of this invention, Comprising: (A) is sectional drawing of the processing state of a GFRP block, (B) is a metal collar with a flange with respect to a GFRP block. FIG. 4C is a cross-sectional view of the press-fitted state, and FIG. (D) is a sectional view of the flanged metal collar with holes drilled and threaded, (E) is a sectional view of the flanged metal collar with the washer contact surface exposed by countersink, (F) FIG. 6 is a cross-sectional view of a stepped washer temporarily held with respect to a vehicle body skeleton member. It is sectional drawing which shows the fastening part structure for vehicles which concerns on the 2nd Embodiment of this invention. It is sectional drawing which shows the fastening part structure for vehicles which concerns on the 3rd Embodiment of this invention. It is a figure which shows the assembly process of the fastening part structure for vehicles which concerns on the 3rd Embodiment of this invention, Comprising: (A) is sectional drawing of the state which enclosed the GFRP block in the vehicle body frame member 12, (B) is GFRP. Sectional drawing of the drilling process state with respect to a block, (C) is sectional drawing of the press injection process of the metal collar with a flange with respect to a GFRP block. (D) is a cross-sectional view of a flanged metal collar pressed into the GFRP block, (E) is a cross-sectional view of the flanged metal collar drilled and threaded, and (F) is a fastening process of a member to be fastened FIG. It is sectional drawing which shows the fastening part structure for vehicles which concerns on the 4th Embodiment of this invention.

Explanation of symbols

10 Vehicle Fastening Structure 12 Car Body Frame Member (Surface Material)
14 Fastened member 20 GFRP block (internal member)
22 Metal collar with flange (fastening member)
25 Screw hole (thread)
36 Press-fit holes (holes)
40, 50, 60 Vehicle fastening structure 42 Press-fit hole (hole)
44 GFRP block (internal member)
46 Car body frame member (surface material)
52/68 Metal collar with flange (fastening member)

Claims (6)

A surface material composed of a composite of fiber and resin;
A block-like inner member provided on the inside of the surface layer material and configured by laminating a laminated glass fiber fabric with a resin material;
A fastening member that is press-fitted into a hole provided in the internal member so that a depth direction is a lamination direction of the glass fiber fabric, and receives a fastening load for fastening a fastened member;
Fastening part structure with   The fastening part structure according to claim 1, wherein the fastening member is made of a metal material.   The fastening part structure according to claim 1, wherein a fastening screw part is formed on the fastening member.   The fastening part structure according to any one of claims 1 to 3, wherein the fastened member is fastened to a press-fitting side of the fastening member with respect to the internal member.   The fastening part structure according to any one of claims 1 to 4, wherein the fastened member is fastened to a side of the fastening member opposite to the press-fitting side with respect to the internal member. The fastening part structure according to claim 1, wherein the fastening member is bonded to the surface layer material.

Images