JP2008164061A - Member mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a member mounting structure facilitating removal work of a mounted member. <P>SOLUTION: The member mounting structure comprising a mounted member provided with a nut, and a mounting member provided with an insertion hole for inserting a bolt to be fastened to the nut, and mounting the mounting member to the mounted member, is provided with a first fixture 10 and a second fixture 20 disposed with the mounting member held between. The first fixture has a tube part 11 inserted in the insertion hole, and a flange 12 and a collar part 13 formed at the ends of the cylinder part. The second fixture has a plate part 22 holding the mounting member together with the collar part; an insertion hole 21 bored in the plate part; an engaging part engaged with the flange; and a curved part 23a provided at the base part. The curved part abuts on the inner periphery of the flange, and the engaging part is displaced as the bolt and nut are fastened, to release engagement between the first and second fixtures. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a member mounting structure.

  2. Description of the Related Art Conventionally, resin fenders are attached to members having different thermal expansion / contraction rates, for example, metal fenders so as to be relatively movable.

  As the mounting structure described above, for example, Patent Document 1 discloses a synthetic resin product mounting structure in which a cylindrical spacer is interposed in a long hole formed in a synthetic resin product and is attached to a vehicle body with a bolt. While a guide flange having substantially the same shape as the elongated hole is formed, a synthetic resin product mounting structure in which a pair of projecting members are provided apart from the synthetic resin product or the vehicle body is described. Thus, even if a difference in thermal expansion between the synthetic resin product and the vehicle body occurs after fastening, a relative length change is allowed.

Japanese Utility Model Publication No. 5-14950

  However, in the above-described synthetic resin product mounting structure, positioning can be performed accurately and fastening with bolts can be easily performed. However, when replacing a synthetic resin product, in addition to removing the bolts, The spacer fixed to the surface had to be removed, and the replacement work of the synthetic resin product was complicated.

  Then, this invention is proposed in view of the problem mentioned above, and it aims at providing the member attachment structure which can perform the removal operation | work of the attached member easily.

  A member mounting structure according to a first invention for solving the above-described problem includes a mounted member provided with a nut, and a mounting member provided with an insertion hole into which a bolt fastened to the nut is inserted, A member attachment structure for attaching the attachment member to a member to be attached, further comprising a first attachment and a second attachment disposed with the attachment member interposed therebetween, wherein the first attachment A cylindrical portion that is inserted into the insertion hole, a flange that is formed at one end of the cylindrical portion and is erected on the inner peripheral side of the cylindrical portion, and is formed at the other end of the cylindrical portion A flange portion standing on the outer peripheral side of the cylindrical portion, and the second fixture includes a plate portion sandwiching the attachment member together with the flange portion, and a bolt formed in the plate portion. A through hole through which the shaft body is inserted, and how to insert the bolt from the edge of the through hole An engaging portion that extends to the flange and engages with the flange, and a curved portion that is provided at a base portion of the engaging portion and is curved toward the outer peripheral side toward the proximal end side. Abutting on the inner periphery, extending outward from the inner periphery, and being guided and deformed by the inner periphery of the flange as the bolt and the nut are fastened, the engaging portion is located on the center side of the insertion hole. And the engagement between the first fixture and the second fixture is released.

  The member mounting structure according to the second invention for solving the above-described problem is the member mounting structure according to the first invention, wherein the insertion hole is formed as an elongated hole, and the first and second mounting tools are provided. However, it moves relative to the mounting member.

  A member mounting structure according to a third invention for solving the above-described problem is a member mounting structure according to the first invention or the second invention, wherein the mounting member is disposed above a wheel and is outside a vehicle side portion. It is a resin fender forming a plate, and the attached member is a vehicle body side skeleton member to which the resin fender is attached.

  According to the member mounting structure according to the first invention, when the bolt is fixed, the seat surface of the bolt presses the vicinity of the edge of the insertion hole formed in the plate portion in the bolt insertion direction. Therefore, the engaging portion is pressed toward the flange of the first fixture, and the engaging portion provided with the curved portion on the outer periphery of the flange is pressed by the flange and tilted toward the center of the insertion hole. That is, the engaging portion is bent toward the center of the insertion hole. Thereby, engagement with the said cylinder part and the said engaging part is cancelled | released, and engagement with said 1st fixture and said 2nd fixture is cancelled | released. As a result, even if the first fixture is fixed to the attached member by electrodeposition coating or the like, the attached member is attached to the attached member together with the second attachment when the bolt is removed. The mounting member can be easily replaced.

    According to the member mounting structure according to the second aspect of the present invention, the thermal expansion difference can be absorbed when the mounting member and the mounted member having the thermal expansion difference are attached and then a high temperature state such as painting is achieved.

  According to the member mounting structure according to the third invention, even if the first fixture is fixed to the vehicle body frame member, the resin fender can be removed from the vehicle body frame member simply by removing the bolt. These resin fenders can be fixed with bolts. That is, the fender replacement work can be easily performed, and an increase in work cost can be suppressed.

  Hereinafter, the best mode for carrying out the member mounting structure according to the present invention will be specifically described based on examples.

The member mounting structure according to the first embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of a first fixture and a second fixture in a member mounting structure according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view thereof. FIG. 3 is an explanatory view of a member mounting structure according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view of the member mounting structure according to the first embodiment of the present invention, showing a state of being fixed with bolts. FIG. 5 is an explanatory view of the member mounting structure according to the first embodiment of the present invention, and shows the state of the first and second mounting tools before being fixed with bolts in FIG. The state of the 1st and 2nd fixture when it fixes with a volt | bolt in (b) is shown. FIG. 6 is a cross-sectional view of the member mounting structure according to the first embodiment of the present invention, and shows a state in which the bolt is removed after fixing with the bolt.

  The member mounting auxiliary component 30 used in the member mounting structure according to the first embodiment of the present invention comprises a first mounting tool 10 and a second mounting tool 20, as shown in FIGS. As shown in FIGS. 3 and 4, this is a member mounting auxiliary part for mounting the mounting member 32 to the mounted member 31.

  The first fixture 10 is formed at the cylindrical portion 11 through which the shaft 33a of the bolt 33 is inserted, and at one end of the cylindrical portion 11, and is erected in the center side direction (in the horizontal direction in FIG. 3). It has a flange 12 that extends and a flange 13 that is formed at the other end of the cylindrical portion 11 and stands and extends in the outward direction.

  The second fixture 20 includes a plate portion 22 that sandwiches the attachment member 32 together with the flange portion 13 of the first fixture 10, and an insertion hole 21 that is drilled in the plate portion 22 and into which the shaft 33 a of the bolt 33 is inserted. A pair of tongues having an S-shaped cross section formed in the edge portion 22a of the insertion hole 21, extending in the insertion direction of the shaft 33a of the bolt 33, and engageable with the end portion of the flange 12 of the first fixture 10. And a single portion (engagement portion) 23.

  The tongue piece portion 23 described above has a first bending portion 23a that curves outward and a second bending portion 23b that is continuous with the first bending portion 23a and curves inward. The front end 12 b of the flange of the first fixture 10 is disposed closer to the center of the insertion hole 21 than the edge 22 a of the insertion hole 21. That is, the 1st curved part 23a is provided in the outer side rather than the inner periphery of the front-end | tip part 12b of a flange. Further, the second curved portion 23b is inserted into the cylindrical portion 11, and the base portion 12a of the flange is disposed closer to the center side of the hole 21 than the edge portion 22a. Furthermore, the front-end | tip part 12b of a flange is arrange | positioned in the center side of the penetration hole 21 rather than the 2nd curved part 23b. Therefore, the first fixture 10 and the second fixture 20 are engaged.

3, 4, and 5, a state where the mounting member 32 is fixed to the mounted member 31 with the bolt 33, that is, a member mounting structure using the member mounting auxiliary component 30 described above. explain.
As shown in FIG. 3, the first fixture 10 and the second fixture 20 are disposed with the attachment member 32 interposed therebetween, and the cylindrical portion 11 of the first fixture 10 is formed in the attachment member 32. Is inserted into the insertion hole 32a. Next, the engaging portion 23 of the second fixture 20 is engaged with the flange 12 of the first fixture 10. That is, the second curved portion 23b is inserted into the cylindrical portion 11 of the first fixture 10 as shown in FIGS. 3 and 5A. The member mounting auxiliary component 30 is held by the mounting member 32. In this state, as shown in FIG. 4, the shaft 33 a of the bolt 33 is inserted into the insertion hole 21 of the second fixture 20 and the fixing hole 31 a of the attached member 31, and is fixed to the attached member 31. The engaged nut 34 is engaged. Therefore, the mounting member 32 is fixed to the mounted member 31 with the bolt 33.

  At this time, as shown in FIG. 4 and FIG. 5B, the seat surface 33b of the bolt 33 has the first curved portion 23a in the vicinity of the edge portion 22a of the insertion hole 21 of the plate portion 22 along the shaft body 33a. Press toward the flange 12 of one fixture 10. Therefore, the first bending portion 23 a and the second bending portion 23 b are pushed and bent toward the center side of the insertion hole 21. Thereby, the second curved portion 23b is disposed closer to the center of the insertion hole 21 than the tip 12b of the flange, and the engagement between the cylindrical portion 11 and the tongue piece portion 23 is released, and the first fixture 10 and The engagement with the second fixture 20 is released.

Here, the case where the attachment member 32 is replaced with another attachment member will be described below.
As described above, the second bending portion 23b is arranged closer to the center side of the insertion hole 21 than the front end 12b of the flange by the bolt 33, and the first fixture 10 and the second fixture 20 are engaged. Therefore, when the bolt 33 is removed, the attachment member 32 can be detached from the attached member 31 together with the second attachment tool 20. Therefore, when attaching another attachment member (not shown), a first attachment tool (not shown) and a second attachment tool (not shown) are disposed with the attachment member interposed therebetween, The cylindrical portion of the first fixture is inserted into an insertion hole formed in the attachment member. Then, the engaging part of the second fixture is engaged with the flange of the first fixture. In this state, a shaft body of a bolt (not shown) is inserted into the insertion hole of the second fixture and the fixing hole of the attached member, and is engaged with the nut fixed to the attached member. Other mounting members can be fixed to the mounted member.

  Examples of the mounted member 31 and the mounting member 32 include a vehicle body skeleton member and a resin fender that covers the vicinity of the front and rear end side portions. Even if the electrodeposition coating is performed in a state where the resin fender (attachment member 32) is attached to the vehicle body skeleton member (attachment member 31) and the first attachment 10 is fixed to the vehicle skeleton member, the bolt 33 As shown in FIG. 6, the resin fender can be easily removed from the vehicle body frame member simply by removing. Therefore, when another resin fender is attached to this location, the second curved portion (not shown) of the second fixture (not shown) is inserted into the insertion hole formed in the resin fender. Then, the second curved portion is inserted into the cylindrical portion of the first fixture fixed to the vehicle body skeleton member, and the shaft body of the bolt is fixed to the insertion hole of the second fixture and the vehicle body skeleton member. Another resin fender can be fixed to the vehicle body skeleton member by being inserted into the hole and engaged with the nut. That is, the fender replacement work can be easily performed, and an increase in work cost can be suppressed.

    Further, if the insertion hole 32a drilled in the resin fender (mounting member 32) is a long hole, the difference in thermal expansion with the vehicle body skeleton member can be absorbed, and the coating process is performed after the resin fender is mounted. It becomes possible to make it.

  The first fixture 10 and the second fixture 20 described above are manufactured from the same material as the mounting member 32.

  Therefore, according to the member mounting structure according to the first embodiment of the present invention, when the bolt 33 is fixed, the seat surface 33b of the bolt 33 is the first near the edge 22a of the insertion hole 21 of the plate portion 22. The bending portion 23 a is pressed toward the flange 12 of the first fixture 10, and the first bending portion 23 a and the second bending portion 23 b are pushed and bent toward the center side of the insertion hole 21. Thereby, the 2nd curved part 23b is arrange | positioned rather than the front-end | tip 12b of a flange at the center side of the penetration hole 21, and the engagement with the 1st fixture 10 and the 2nd fixture 20 is cancelled | released. As a result, even if the first fixture 10 is fixed to the attached member 31 by electrodeposition coating or the like, the attachment member 32 is removed from the attached member 31 together with the second attachment 20 when the bolt 33 is removed. The mounting member 32 can be easily replaced.

  In the above description, the vehicle body skeleton member and the fender are used as the attachment member 31 and the attachment member 32. However, instead of these two members, two members having different thermal expansion / contraction rates are used, and the above-described members are used to attach these members. A member attachment structure using the attachment auxiliary component 30 may be used, and even such a member attachment structure has the same effects as the member attachment structure according to the first embodiment of the present invention described above.

It is a perspective view of the 1st fixture in the member attachment structure concerning the 1st example of the present invention, and the 2nd fixture. It is sectional drawing of the 1st fixture in the member attachment structure which concerns on 1st Example of this invention, and a 2nd fixture. It is explanatory drawing of the member attachment structure which concerns on 1st Example of this invention. It is sectional drawing of the member attachment structure which concerns on 1st Example of this invention. It is explanatory drawing of the member attachment structure which concerns on the 1st Example of this invention. It is sectional drawing of the member attachment structure which concerns on 1st Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 1st attachment tool 11 Tube part 12 Flange 13 Gutter part 20 Second attachment tool 21 Insertion hole 22 Plate part 23 Tongue piece part (engagement part)
30 Auxiliary parts 31 for attaching members 31 Attachment members 32 Attachment members 33 Bolts 34 Nuts

Claims (3)

A mounted member provided with a nut;
A mounting member provided with an insertion hole into which a bolt to be fastened to the nut is inserted;
A member mounting structure for mounting the mounting member to the mounted member,
Further comprising a first fixture and a second fixture disposed across the mounting member;
In the first fixture,
A cylindrical portion to be inserted into the insertion hole;
A flange formed at one end of the cylindrical portion and erected on the inner peripheral side of the cylindrical portion;
A collar portion formed at the other end portion of the cylindrical portion and erected on the outer peripheral side of the cylindrical portion;
In the second fixture,
A plate portion sandwiching the mounting member together with the flange portion;
An insertion hole formed in the plate portion and through which the shaft of the bolt is inserted;
An engagement portion extending from the edge of the insertion hole in the insertion direction of the bolt and engaging with the flange;
A curved portion provided at a base portion of the engaging portion and curved toward an outer peripheral side toward a proximal end side;
The curved portion abuts on the inner periphery of the flange and extends outward from the inner periphery, and is guided by the inner periphery of the flange and deformed as the bolt and nut are fastened. The member mounting structure is configured to disengage the first mounting tool from the second mounting tool by displacing the portion toward the center of the insertion hole. The member mounting structure according to claim 1,
The insertion hole is a long hole,
The first and second attachments move relative to the attachment member. The member mounting structure according to claim 1 or 2,
The mounting member is a resin fender that is arranged above the wheel and forms a vehicle side skin,
The member attachment structure, wherein the attached member is a vehicle body side skeleton member to which the resin fender is attached.

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