JP6237496B2 - Assembly structure - Google Patents

Description

  The present invention relates to an assembly structure.

  An assembly structure in which a bumper cover is assembled to a vehicle body is known (for example, see Patent Document 1). Also, an assembly structure for assembling interior parts to a vehicle interior panel is known (see, for example, Patent Document 2).

JP2013-169916A JP 2012-167692 A

  In this type of assembly structure, for example, by inserting the claw portion on the second member side into the mounting hole on the first member side while being elastically deformed, and locking the claw portion on the edge portion of the mounting hole, It is conceivable to assemble one member and the second member. In this case, in the state where the first member and the second member are assembled, the assembly position is orthogonal to the assembly direction of the first member and the second member (insertion direction of the claw portion) (hereinafter referred to as “orthogonal”). There is a desire to adjust the direction.

  As a countermeasure for this, for example, it is conceivable to enlarge the mounting hole so that the first member and the second member can be relatively displaced in the orthogonal direction within a range allowed by the mounting hole. However, when the mounting hole is enlarged, when the first member and the second member are relatively displaced in the orthogonal direction, the claw part comes off from the edge of the mounting hole, and the first member and the second member are assembled. The state may be released.

  On the other hand, if the mounting hole is made small so that the claw part does not come off from the peripheral part of the mounting hole, the elastic deformation space (relief space) of the claw part is insufficient when the claw part is inserted into the mounting hole, and the claw part is inserted into the mounting hole. The part may not enter.

  In view of the above fact, an object of the present invention is to obtain an assembly structure in which the first member and the second member can be assembled so as to be capable of relative displacement in an orthogonal direction orthogonal to the assembly direction.

The assembly structure according to the first aspect is formed in a slit shape and a mounting hole having a pair of first long edge and second long edge along the longitudinal direction, and the first long edge. A first member having a step portion for shifting the first long edge portion in the opening direction of the attachment hole with respect to the second long edge portion, and an opening portion is formed while being inserted into the attachment hole. An insertion piece, a pair of first extension piece and second extension piece respectively extending from the front edge of the opening in the insertion direction to the inside of the opening, and protruding from the first extension piece, A first claw portion that is locked to the first long edge portion, and a second claw portion that protrudes from the second extending piece to the opposite side of the first claw portion and is locked to the second long edge portion. The 2nd member which has these.

  According to said structure, when the insertion piece of a 2nd member is inserted in the attachment hole of a 1st member, it inserts in a pair of 1st long edge part and 2nd long edge part along the longitudinal direction of an attachment hole. The first claw portion and the second claw portion on one side are in contact with each other. In this state, when the insertion piece is further inserted into the mounting hole, the first extension piece and the second extension piece are elastically deformed, respectively, and the first claw portion and the second claw portion are the first long edge portion and the first extension piece, respectively. 2 Get over the long edge. As a result, the first claw portion and the second claw portion are locked to the first long edge portion and the second long edge portion, respectively, and the first member and the second member are assembled in the insertion direction of the insertion piece.

  Thus, in this invention, the 1st nail | claw part and 2nd nail | claw part by the side of an insertion piece are latched by the 1st long edge part and 2nd long edge part of the both sides of an attachment hole, respectively. Therefore, when the first member and the second member are relatively displaced in the orthogonal direction orthogonal to the assembly direction, for example, even if the first claw portion is about to come off from the first long edge portion, Since the catch amount of the second claw portion increases, the assembled state of the first member and the second member is prevented from being released.

  Moreover, the step part is formed in the 1st long edge part of the attachment hole. The first long edge portion and the second long edge portion are shifted in the opening direction of the attachment hole by this step portion. Thereby, the space | interval of a 1st long edge part and a 2nd long edge part becomes large compared with the case where a 1st long edge part and a 2nd long edge part do not shift | deviate to the opening direction of an attachment hole.

  For this reason, when the first claw portion climbs over the first long edge portion, the first claw portion is unlikely to contact the second long edge portion on the side opposite to the first long edge portion. Similarly, when the second claw portion gets over the second long edge portion, the second claw portion hardly comes into contact with the first long edge portion opposite to the second long edge portion. Therefore, since the first claw portion and the second claw portion easily get over the first long edge portion and the second long edge portion, the first member and the second member can be easily assembled.

  As described above, according to the assembly structure according to the present invention, the first member and the second member can be assembled so as to be capable of relative displacement in an orthogonal direction orthogonal to the assembly direction.

(A) And (B) is a perspective view which shows the front bumper cover and front grill to which the assembly structure which concerns on one Embodiment of this invention was applied. (A) is the top view which looked at the insertion piece shown in Drawing 1 (A) from the upper part of the vehicles up-and-down direction, and (B) looked at the insertion piece shown in Drawing 1 (A) from the outside of the vehicle width direction. FIG. It is the front view which looked at the insertion piece shown by FIG. 1 (B) from the vehicle front-back direction rear side. (A) is the sectional view on the 4A-4A line of FIG. 3, (B) is the sectional view on the 4B-4B line of FIG. (A) And (B) is a perspective view which shows a reference example.

  Hereinafter, an assembly structure according to an embodiment of the present invention will be described with reference to the drawings. It should be noted that an arrow FR appropriately shown in each figure indicates the front side in the vehicle front-rear direction, an arrow UP indicates the upper side in the vehicle vertical direction, and an arrow OUT indicates the vehicle width direction outer side.

  1A and 1B show a front bumper cover 20 and a front grill 30 to which the assembly structure 10 according to the present embodiment is applied. A front bumper cover (hereinafter also simply referred to as “bumper cover”) 20 as an example of a first member is formed of resin, and is disposed on the vehicle front end side with the vehicle width direction as a longitudinal direction.

  A grill opening (not shown) for taking outside air into a power unit chamber (not shown) is formed at the center of the bumper cover 20 in the vehicle width direction. The front grill 30 is assembled to the bumper cover 20 from the front side in the vehicle front-rear direction so as to cover the grill opening. Note that a plating molding (not shown) is also attached to the bumper cover 20 from the front side of the front grill 30 in the vehicle front-rear direction.

  A mounting portion 22 that is recessed toward the opposite side of the front grille 30 (the rear side in the vehicle front-rear direction) is integrally formed above the grille opening in the bumper cover 20. An attachment hole 24 for assembling the front grill 30 is formed in the bottom portion 22A of the attachment portion 22. A plurality of attachment portions 22 are formed on the bumper cover 20.

  The mounting hole 24 is a long hole formed in a slit shape that extends through the bottom 22A of the mounting portion 22 in the thickness direction and extends in the vehicle vertical direction. The mounting hole 24 includes a pair of first long edge portions 24A and a second long edge portion 24B along the longitudinal direction (vehicle vertical direction), and a pair of first short edge portions 24C along the short direction (vehicle width direction). And a second short edge portion 24D.

  The first long edge portion 24A is integrally formed with a step portion 26 that is recessed to the opposite side of the front grill 30. The step portion 26 is formed over substantially the entire length of the first long edge portion 24A. The step portion 26 forms a step between the first long edge portion 24A and the second long edge portion 24B, and the first long edge portion 24A and the second long edge portion 24B open the mounting hole 24. It is shifted in the direction (vehicle longitudinal direction). More specifically, the first long edge portion 24 </ b> A is disposed behind the second long edge portion 24 </ b> B in the vehicle front-rear direction by the step portion 26. Thereby, as will be described later, a gap G (see FIGS. 4A and 4B) between the first long edge portion 24A and the second long edge portion 24B is set wide.

  In the present embodiment, the stepped portion 26 is recessed toward the opposite side of the front grill 30, but may be recessed toward the front grill 30 side. Moreover, the opening direction of the attachment hole 24 is the same direction as the insertion direction (arrow S direction) of the insertion piece 40 described later.

  On the surface of the first long edge portion 24 </ b> A opposite to the front grill 30, a protruding first locked portion 28 that locks a first claw portion 54 described later is integrally formed. On the other hand, the 2nd long edge part 24B is made into the 2nd to-be-latched part in which the 2nd nail | claw part 56 mentioned later is formed. The first locked portion 28 is a protrusion for adjusting (finely adjusting) the locking position of the first claw portion 54 with respect to the first long edge portion 24A. The first claw portion 54 and the second claw portion 56 are locked to the first long edge portion 24A and the second long edge portion 24B substantially simultaneously.

  A front grill (hereinafter also simply referred to as “grill”) 30 as an example of the second member is formed of resin, and is disposed with the vehicle width direction as a longitudinal direction. The grill 30 is formed in a lattice shape when viewed from the front side in the vehicle front-rear direction. The grill 30 has a plurality of horizontal frame portions 30A that extend in the vehicle width direction and are arranged at intervals in the vehicle vertical direction. A slit opening 32 through which outside air passes is formed between the adjacent horizontal frame portions 30A. An insertion piece 40 to be inserted into the mounting hole 24 of the bumper cover 20 is formed integrally with the horizontal frame portion 30A. The arrow S indicates the front side of the insertion piece 40 in the insertion direction with respect to the attachment hole 24.

  The insertion piece 40 is formed in a panel shape whose thickness direction is the vehicle width direction according to the shape of the mounting hole 24, and extends from the grill 30 to the bumper cover 20 side (rear side in the vehicle front-rear direction). Further, the insertion piece 40 has a U shape with the grill 30 side opened as viewed from the thickness direction. The insertion piece 40 has a pair of leg portions 40A extending from the grill 30 to the bumper cover 20 side, and a connecting portion 40B connecting the pair of leg portions 40A.

  As shown in FIG. 2B, the pair of leg portions 40 </ b> A are arranged with a space therebetween, and constitute side portions on both sides along the insertion direction of the insertion piece 40. On the grill 30 side of the outer edge portion of the pair of leg portions 40A, a step-like engagement engaged with the first short edge portion 24C and the second short edge portion 24D (see FIG. 1B) of the mounting hole 24 is provided. Joint portions 42 are respectively formed. The connecting portion 40B is stretched over the distal end portions in the extending direction of the pair of leg portions 40A, and constitutes a front end portion on the front side in the insertion direction of the insertion piece 40.

  Note that ribs 46 are formed on the pair of leg portions 40A, respectively, and the rigidity in the thickness direction of the pair of leg portions 40A is enhanced by these ribs 46. Further, the corners on both sides of the connecting portion 40B are chamfered so as to be easily inserted into the mounting hole 24.

  The insertion piece 40 has an opening 44 that penetrates the insertion piece 40 in the thickness direction. A first extending piece 50 and a second extending piece 52 are disposed in the opening 44. The first extension piece 50 and the second extension piece 52 are formed in a plate shape having substantially the same thickness as the insertion piece 40, and are aligned with the opposing direction (the vehicle vertical direction) of the pair of leg portions 40 </ b> A. Is housed inside.

  Each of the first extending piece 50 and the second extending piece 52 extends into the opening 44 from the front edge 44A on the front side in the insertion direction (arrow S direction) in the opening 44. That is, the first extension piece 50 and the second extension piece 52 extend from the front edge portion 44A of the opening 44 to the rear side in the insertion direction of the insertion piece 40 (the grill 30 side). The first extending piece 50 and the second extending piece 52 have elasticity that can be elastically deformed in each thickness direction (vehicle width direction) with the front edge 44A of the opening 44 as a fulcrum.

The extension length L ₁ of the first extension piece 50 is shorter than the extension length L ₂ of the second extension piece 52. A first claw portion 54 that protrudes to one side in the thickness direction of the first extension piece 50 (insertion piece 40) is provided at the distal end portion of the first extension piece 50 in the extension direction. On the other hand, a second claw projecting to the other end in the thickness direction of the second extension piece 52 (insertion piece 40), that is, the opposite side to the first claw portion 54 is provided at the distal end portion of the second extension piece 52 in the extension direction. A portion 56 is provided. The first claw portion 54 and the second claw portion 56 are arranged so as to be shifted in the insertion direction of the insertion piece 40. More specifically, the first claw portion 54 is disposed on the front side of the insertion piece 40 in the insertion direction with respect to the second claw portion 56.

  As shown in FIG. 2A, the first claw portion 54 is formed in a substantially triangular cross section, and has an inclined surface 54A facing the front side in the insertion direction of the insertion piece 40 and a latch facing the rear side in the insertion direction. Surface 54B. The inclined surface 54A is inclined so as to go to the rear side in the insertion direction of the insertion piece 40 toward the front side in the protruding direction of the first claw portion 54 (inner side in the vehicle width direction). The inclined surface 54 </ b> A comes into contact with the first long edge portion 24 </ b> A of the attachment hole 24 as the insertion piece 40 is inserted into the attachment hole 24.

  The locking surface 54 </ b> B is locked to the first locked portion 28 of the first long edge portion 24 </ b> A when the first claw portion 54 gets over the first long edge portion 24 </ b> A of the mounting hole 24. The locking surface 54B is inclined so as to go to the rear side in the insertion direction of the insertion piece 40 as it goes to the front side in the protruding direction of the first claw portion 54. Accordingly, when the insertion piece 40 is to be pulled out from the mounting hole 24 in a state where the first claw portion 54 is locked to the first locked portion 28, the first extending piece 50 is moved to the first claw portion 54. It is elastically deformed to the front side in the protruding direction (arrow K side in FIG. 4B).

  The 2nd nail | claw part 56 is formed in cross-sectional substantially triangular shape, and has 56 A of inclined surfaces which face the insertion direction front side of the insertion piece 40, and the locking surface 56B which faces the insertion direction rear side. The inclined surface 56A is inclined so as to go to the rear side in the insertion direction of the insertion piece 40 toward the front side in the protruding direction of the second claw portion 56 (outside in the vehicle width direction). The inclined surface 56 </ b> A comes into contact with the second long edge portion 24 </ b> B of the attachment hole 24 as the insertion piece 40 is inserted into the attachment hole 24.

  The locking surface 56B is locked to the second long edge portion 24B when the second claw portion 56 gets over the second long edge portion 24B of the mounting hole 24. Note that the surfaces of the first claw portion 54 and the second claw portion 56 may be appropriately inclined with respect to the mold drawing direction so that the mold can be easily molded.

As shown in FIG. 3, the hole widths H ₁ and H _{2 in} the longitudinal direction and the short direction of the attachment hole 24 are set wider than the width W and the thickness T of the insertion piece 40. Thereby, the insertion piece 40 can be moved in the mounting hole 24 in the orthogonal direction orthogonal to the insertion direction (arrow S direction). Further, the protruding lengths P ₁ and P ₂ of the first claw portion 54 and the second claw portion 56 are equal to the _first long edge portion 24A regardless of which direction the insertion piece 40 moves in the short direction of the mounting hole 24. The first claw portion 54 and the second claw portion 56 are set so as not to be detached from the second long edge portion 24B.

  Next, the operation and effect of this embodiment will be described.

  As shown in FIG. 1A, according to the assembly structure 10 according to the present embodiment, the grill 30 is assembled to the bumper cover 20 from the front side in the vehicle front-rear direction. Specifically, the grill 30 is disposed on the front side in the vehicle front-rear direction of the bumper cover 20. Next, the insertion piece 40 of the grill 30 is inserted into the mounting hole 24 formed in the bumper cover 20. At this time, as shown in FIGS. 4A and 4B, the inclined surfaces 54 </ b> A and 56 </ b> A of the first claw portion 54 and the second claw portion 56 are the first long edge portions 24 </ b> A on both sides of the mounting hole 24. And the second long edge portion 24B.

  In this state, when the insertion piece 40 is further inserted into the mounting hole 24, the following occurs. That is, as shown in FIG. 4B, the inclined surface 54A of the first claw portion 54 is pressed against the first long edge portion 24A, and the first extending piece 50 is second as shown by the two-dot chain line. It is elastically deformed (flexible deformation) toward the long edge portion 24B. When the first claw portion 54 gets over the first long edge portion 24A along with the elastic deformation of the first extending piece 50, the locking surface 54B of the first claw portion 54 becomes the first long edge as shown by the broken line. It is locked to the first locked portion 28 of the portion 24A.

  Similarly, as shown in FIG. 4A, the inclined surface 56A of the second claw portion 56 is pressed against the second long edge portion 24B, and the second extending piece 52 is indicated by a two-dot chain line. Is elastically deformed (flexible deformation) toward the first long edge portion 24A. When the second claw portion 56 gets over the second long edge portion 24B along with the elastic deformation of the second extension piece 52, the locking surface 56B of the second claw portion 56 becomes the second long edge as shown by the broken line. It is locked to the portion 24B (second locked portion). As a result, the bumper cover 20 and the grill 30 are assembled in the insertion direction of the insertion piece 40.

Here, as shown in FIG. 3, the hole widths H ₁ and H _{2 in} the longitudinal direction and the short direction of the attachment hole 24 are set wider than the width W and the thickness T of the insertion piece 40. Thereby, the insertion piece 40 can be moved in the attachment hole 24 in the orthogonal direction (longitudinal direction and short direction of the attachment hole 24) orthogonal to the insertion direction. Therefore, in a state where the bumper cover 20 and the grill 30 are assembled, the bumper cover 20 and the grill 30 can be relatively displaced in an orthogonal direction orthogonal to the assembly direction (insertion direction of the insertion piece 40). Therefore, for example, in a state where the grill 30 and the plating molding (not shown) are assembled to the bumper cover 20, the positional relationship between the grill 30 and the plating molding (not shown) (for example, the gap between them) can be adjusted.

  In the present embodiment, the first claw portion 54 and the second claw portion 56 on the insertion piece 40 side are locked to the first long edge portion 24A and the second long edge portion 24B on both sides of the mounting hole 24, respectively. . Therefore, when the bumper cover 20 and the grill 30 are relatively displaced in the orthogonal direction orthogonal to the assembling direction, for example, even if the first claw portion 54 tends to come off from the first long edge portion 24A, the second long edge Since the amount of engagement of the second claw portion 56 with respect to the portion 24B increases, it is suppressed that the assembled state of the bumper cover 20 and the grill 30 is released. Similarly, even if the second claw portion 56 is about to be detached from the second long edge portion 24B, the amount of the first claw portion 54 to be hooked with respect to the first long edge portion 24A increases, so that the bumper cover 20 and the grill 30 Although the assembly state of is released, it is suppressed.

  As described above, in the present embodiment, the bumper cover 20 and the grill 30 can be relatively displaced in the orthogonal direction orthogonal to the assembly direction while the assembled state of the bumper cover 20 and the grill 30 is maintained.

Further, in the present embodiment, the protrusion lengths P ₁ and P _{2 of} the first claw portion 54 and the second claw portion 56 are not affected by the insertion piece 40 moving in any direction in the short direction of the mounting hole 24. The length is set such that the first claw portion 54 and the second claw portion 56 are not detached from the first long edge portion 24A and the second long edge portion 24B. Therefore, even if the bumper cover 20 and the grill 30 are relatively displaced in any direction in the short direction of the mounting hole 24, the first claw portion 54 and the second claw portion 54A are moved from the first long edge portion 24A and the second long edge portion 24B. It is suppressed that nail | claw part 56 remove | deviates.

  Further, as shown in FIGS. 4A and 4B, a step portion 26 is formed on the first long edge portion 24A, and the step portion 26 and the second long edge portion 24A are connected to the second long edge portion 24A. The long edge portion 24 </ b> B is shifted in the opening direction of the attachment hole 24. Therefore, compared to the case where the first long edge portion 24A and the second long edge portion 24B are not displaced in the insertion direction of the insertion piece 40, the gap G between the first long edge portion 24A and the second long edge portion 24B is smaller. Become wider.

  Accordingly, as shown by a two-dot chain line in FIG. 4B, when the first claw portion 54 gets over the first long edge portion 24A, the first claw portion 54 is opposite to the first long edge portion 24A. It becomes difficult to contact (interfere) with the second long edge portion 24B. Similarly, as shown by a two-dot chain line in FIG. 4 (A), when the second claw portion 56 gets over the second long edge portion 24B, the second claw portion 56 and the second long edge portion 24B. It becomes difficult to contact (interfere) with the first long edge 24A on the opposite side. Accordingly, since the first claw portion 54 and the second claw portion 56 can easily get over the first long edge portion 24A and the second long edge portion 24B, the bumper cover 20 and the grill 30 can be easily assembled.

  Furthermore, the locking surface 54 </ b> B of the first claw portion 54 is inclined so as to go to the rear side in the insertion direction of the insertion piece 40 toward the front side in the protruding direction (inner side in the vehicle width direction) of the first claw portion 54. Accordingly, when the insertion piece 40 is to be pulled out from the mounting hole 24 in a state where the locking surface 54B of the first claw portion 54 is locked to the first locked portion 28, as indicated by the arrow K, The first extending piece 50 is elastically deformed to the outside of the mounting hole 24. As a result, the amount of engagement of the locking surface 54B with respect to the first locked portion 28 increases, so that the insertion piece 40 is unlikely to come out of the mounting hole 24. Therefore, the assembly state of the bumper cover 20 and the grill 30 is prevented from being released.

  Similarly to the locking surface 54B of the first claw portion 54, when the locking surface 56B of the second claw portion 56 is inclined and the insertion piece 40 is about to be pulled out from the mounting hole 24, the second long edge It is also possible to increase the amount of engagement of the locking surface 56B with the portion 24B.

  Next, a modification of the above embodiment will be described.

  In the above embodiment, an example in which a pair of leg portions 40A is provided on the insertion piece 40 has been described. For example, a third leg portion is provided between the first extension piece 50 and the second extension piece 52. May be.

  Moreover, in the said embodiment, although the example which applied the assembly | attachment structure 10 to the bumper cover 20 and the grill 30 was shown, the assembly | attachment structure 10 which concerns on the said embodiment has two other members (a 1st member and a vehicle) in a vehicle. The second member is also applicable as appropriate.

  Furthermore, in the said embodiment, although the example which provided the pair of 1st nail | claw part 54 and the 2nd nail | claw part 56 in the insertion piece 40 was shown, one of the 1st nail | claw part 54 and the 2nd claw part 56 was abbreviate | omitted. Also good. Further, when the pair of first claw portions 54 and second claw portions 56 are provided on the insertion piece 40, the first long edge portion 24 </ b> A and the second long edge portion 24 </ b> B of the attachment hole 24 are not necessarily in the opening direction of the attachment hole 24. It is not necessary to shift to

  Next, a reference example will be described.

  In the above embodiment, the first long edge 24A and the second long edge 24B of the attachment hole 24 are shifted in the opening direction of the attachment hole 24, and the interval G between the first long edge 24A and the second long edge 24B is set. Although the deformation space (relief space) of the first claw portion 54 and the second claw portion 56 is secured by spreading, in the reference example shown in FIGS. 5 (A) and 5 (B), the mounting hole 70 is formed in a crank shape. By forming the first claw portion 54 and the second claw portion 56, a deformation space (escape space) of the first claw portion 54 and the second claw portion 56 is secured.

  Specifically, the mounting hole 70 is bent in a crank shape. Thereby, in 1st long edge part 70A, one end side 70A1 is located in the center side of the attachment hole 70 with respect to the other end side 70A2. A first locked portion 28 to which the first claw portion 54 is locked is provided on one end side 70A1 of the first long edge portion 70A. On the contrary, in the second long edge portion 70B, the other end side 70B2 is located on the center side of the mounting hole 70 with respect to the one end side 70B1. The other end side 70B2 of the second long edge portion 70B is a second locked portion to which the second claw portion 56 is locked.

  By bending the mounting hole 70 in a crank shape in this way, the deformation space (escape) of the first claw portion 54 is between the one end side 70A1 of the first long edge portion 70A and the one end side 70B1 of the second long edge portion 70B. Space) can be secured. Similarly, a deformation space (escape space) of the second claw portion 56 can be secured between the other end side 70A2 of the first long edge portion 70A and the other end side 70B2 of the second long edge portion 70B. .

  As mentioned above, although one embodiment of the present invention was described, the present invention is not limited to such an embodiment, and one embodiment and various modifications may be used in combination as appropriate, and the gist of the present invention will be described. Of course, various embodiments can be implemented without departing from the scope.

10 Assembly structure 20 Front bumper cover (first member)
24 mounting hole 24A first long edge 24B second long edge 26 step 30 front grill (first member)
40 Insertion piece 44 Opening portion 44A Front edge portion (front edge portion on the front side in the insertion direction of the insertion piece at the opening portion)
50 1st extension piece 52 2nd extension piece 54 1st nail | claw part 56 2nd nail | claw part S Insertion direction of an insertion piece

Claims (1)

A mounting hole formed in a slit shape and having a pair of first long edge and second long edge along the longitudinal direction, and the first long edge formed in the first long edge. A first member having a step portion shifted in the opening direction of the mounting hole with respect to the two long edge portions;
An insertion piece that is inserted into the mounting hole and has an opening, and a pair of first and second extending pieces that extend from the front edge of the opening in the insertion direction to the opening. A projecting piece, a first claw portion protruding from the first extending piece and locked to the first long edge portion, and a second claw portion projecting from the second extending piece to the opposite side of the first claw portion. A second member having a second claw portion locked to the two long edge portions;
With
The hole width in the short direction of the mounting hole is wider than the thickness of the insertion piece, the first extension piece, and the second extension piece,
Assembly structure.