JP7103559B2 - Assembly structure of members - Google Patents

Description

The present invention relates to an assembling structure in which members are assembled by a claw fitting structure.

For example, an intake duct used in an automobile vehicle is formed into a tubular shape by forming a pair of divided bodies by injection molding or the like and connecting them to each other by a claw fitting structure (for example, Patent Document 1). reference). Further, in a vehicle, various members including a duct are assembled by a claw fitting structure. In the claw fitting structure, the engaging claw formed in the first member is press-fitted into the engaging hole formed in the second member, and the return portion of the engaging claw through the engaging hole is the opening edge of the engaging hole. The first member and the second member are assembled by being hooked on the first member.

Japanese Unexamined Patent Publication No. 2011-202508

In the above-mentioned claw fitting structure, by forming the width of the engaging hole larger than that of the engaging claw, it is possible to allow a molding error of the first member and the second member and to make it easier to fit the engaging claw. Is being done. Therefore, when the engaging claw is fitted into the engaging hole, a gap is inevitably formed between the engaging claw and the opening edge of the engaging hole. Due to such a gap, rattling occurs between the first member and the second member, abnormal noise is generated due to vibration during vehicle running, and the first member and the second member are connected to each other. There is a risk that the load on the fastening part will increase.

The present invention has been proposed in view of the above-mentioned problems related to the prior art, and an object of the present invention is to provide an assembled structure capable of preventing rattling of members.

In order to overcome the above-mentioned problems and achieve the desired object, the assembly structure of the members according to the present invention is used.
An assembling structure in which an engaging claw provided on a first member is fitted into an engaging hole provided on a second member to assemble the first member and the second member.
The engaging claw
An insertion portion arranged so as to pass through the engaging hole surrounded by the first opening edge and the second opening edge intersecting the first opening edge when the engaging claw is fitted into the engaging hole. When,
A return portion that protrudes from the tip end portion of the insertion portion and is hooked on the first opening edge to prevent the engaging claw from coming off.
When the engaging claw is fitted into the engaging hole, a gap is left with respect to the second opening edge to face the separating surface of the insertion portion, from the separating surface toward the second opening edge. With a positioning part provided so as to protrude,
The positioning portion is formed in a plate shape having a bent portion that bends toward the first opening edge of one side and then toward the first opening edge of the other facing the first opening edge.
The positioning portion has a portion in which the width in the protruding direction from the separation surface is formed to be larger than the gap, and the tip on the side opposite to the root connected to the separation surface due to interference with the second opening edge. The gist is that the edge is configured to be elastically deformable in a direction in which the tip edge approaches the separation surface.

According to the assembly structure of the member according to the present invention, rattling of the member can be prevented.

It is a schematic perspective view which shows the main part of the assembly structure of the member which concerns on embodiment of this invention. It is a top view which shows the main part of the assembly structure of an Example. It is a side view which shows the main part of the assembly structure of an Example. It is a front view which shows the main part of the assembly structure of an Example. It is a cross-sectional view cut at a position corresponding to the line AA of FIG. 2, (a) is an enlarged view of the engaging claw on the right side, and (b) is an enlarged view of the engaging claw on the left side. It is explanatory drawing which shows the process of fitting the engaging claw into an engaging hole. It is a cross-sectional view cut at a position corresponding to the line AA of FIG. 2, and is a modified example in which positioning portions are provided for each of the two engaging claws in the left-right direction. It is sectional drawing which cut at the position corresponding to line AA of FIG. 2, and shows the modification example of the positioning part. It is sectional drawing which cut at the position corresponding to line AA of FIG. 2, and shows the modification example of the positioning part.

Next, the assembling structure of the members according to the present invention will be described below with reference to the accompanying drawings with reference to suitable examples.

As shown in FIG. 1, the first member 10 and the second member 12 are claw fits that fit the engaging claw 14 provided in the first member 10 into the engaging hole 16 provided in the second member 12. They are assembled to each other by a combined structure. The assembly structure according to the present disclosure includes, for example, a case where the oil cooler duct (first member 10) is assembled to an installation member (second member 12) on the vehicle body side, or a plurality of divided bodies (first member 10, second member 12). ) Are combined to form a cylinder to form a duct such as an intake duct, which can be suitably used for assembling vehicle members installed in a vehicle. In the following description, the direction is designated with reference to the state seen from the tip side of the engaging claw 14 in the penetrating direction of the engaging hole 16. As shown in FIG. 1, the side on which the positioning portion 26 is arranged is the right side, the opposite side is the left side, the direction in which the return portion 24 protrudes from the insertion portion 22 is the upper side, and the opposite side is the lower side. The tip of the engaging claw 14 is referred to as the tip side in the direction in which the engaging claw 14 (insertion portion 22) projects from the first member 10, and the opposite side is referred to as the root side.

As the first member 10 and the second member 12, a synthetic resin molded product in which each part such as the engaging claw 14 is integrally formed can be adopted. As the synthetic resin, for example, polypropylene (PP), ABS, polycarbonate (PC), polyca ABS polymer alloy, polyacetal (POM), or the like can be used. The second member 12 may be made of a metal such as stainless steel.

As shown in FIGS. 1 to 4, the engaging claw 14 is formed so as to protrude from the first member 10, and in the embodiment, the two engaging claws 14 fitted into the common engaging hole 16. 14 are provided side by side in the left-right direction. The two left and right engaging claws 14, 14 are arranged apart from each other in the left-right direction, and have a symmetrical shape except for the positioning portion 26 described later. The engaging hole 16 is provided so as to penetrate the engaging portion 12b which is bent and rises from the installation portion 12a installed along the vehicle body side in the second member 12, and is formed in a rectangular shape wide in the left-right direction. .. The engagement hole 16 is surrounded by first opening edges 18, 18 facing in the vertical direction and second opening edges 20, 20 facing in the left-right direction, and can accept two left and right engaging claws 14, 14. be. When distinguishing the upper and lower first opening edges 18 and 18, the upper side is referred to as the upper first opening edge 18A, and the lower side is referred to as the lower first opening edge 18B. When distinguishing the second opening edges 20 and 20 in the left-right direction, the right side is referred to as the right second opening edge 20A, and the left side is referred to as the left second opening edge 20B.

As shown in FIGS. 1 and 2, the engaging claw 14 is inserted into an insertion portion 22 arranged so as to pass through the engaging hole 16 when the engaging claw 14 is fitted into the engaging hole 16. It is provided with a return portion 24 provided at the tip end portion of the portion 22. The insertion portion 22 has a flat plate shape formed so as to project from the first member 10, and the vertical direction is the thickness direction of the insertion portion 22. As shown in FIG. 4, in the two left and right engaging claws 14, 14, the left and right width between the outer surfaces of the insertion portions 22, 22 arranged in the left and right direction is the opening width in the left and right direction (left and right direction) in the engaging hole 16. It is set smaller than the width between the second opening edges 20 and 20). Therefore, when the engaging claw 14 is fitted into the engaging hole 16, the engaging claw 14 has an outer surface of the engaging hole 16 in the insertion portion 22 facing the second opening edge 20 and the second opening edge. There is a gap between it and 20 (see FIG. 5 (a)). Further, the thickness (vertical dimension) of the insertion portion 22 is set to be smaller than the opening width in the vertical direction (the width between the first opening edges 18 and 18 in the vertical direction) in the engaging hole 16 (FIG. 4). reference). Therefore, when the engaging claw 14 is fitted into the engaging hole 16, the engaging claw 14 has a surface facing the first opening edge 18 of the engaging hole 16 in the insertion portion 22 and the first opening edge 18. There is a gap between them. In the embodiment, when the engaging claw 14 is fitted into the engaging hole 16, the upper surface of the insertion portion 22 hits the upper first opening edge 18A, and the lower surface of the insertion portion 22 and the lower first opening edge 18B. There is a gap between them. Further, when the engaging claw 14 is fitted into the engaging hole 16, the left outer surface of the left insertion portion 22 is opened to the left second opening by the positioning portion 26 provided on the right outer surface of the right insertion portion 22. It corresponds to the edge 20B, and there is a gap between the right outer surface of the right insertion portion 22 and the right second opening edge 20A. As described above, in the embodiment, the right outer surface of the insertion portion 22 of the right engaging claw 14 is a separation surface separated from the right second opening edge 20A.

As shown in FIG. 1, the return portion 24 projects from the tip end portion of the insertion portion 22 in a direction intersecting the projecting direction from the first member 10 of the insertion portion 22. When the engaging claw 14 is fitted into the engaging hole 16, the return portion 24 is hooked on the first opening edge 18 to prevent the engaging claw 14 from coming off. When the engaging claw 14 is fitted into the engaging hole 16, the return portion 24 is arranged so as to face the first opening edge 18 of the engaging hole 16 in the overhanging direction. The return portion 24 of the embodiment projects upward from the insertion portion 22, and when the engaging claw 14 is fitted into the engaging hole 16, the return portion 24 is arranged so as to face the upper first opening edge 18A of the engaging hole 16 in the overhanging direction. Will be done. Then, the engaging claw 14 is configured so that the insertion portion 22 hits the upper first opening edge 18A on the upper side where the return portion 24 protrudes from the insertion portion 22 (see FIG. 5). It can be said that the engaging claw 14 projects the return portion 24 from the insertion portion 22 in the upward direction on the upper first opening edge 18A side on which the insertion portion 22 is applied. In the engaging claw 14, the vertical dimension at the tip of the return portion 24 (the dimension in the protruding direction of the return portion 24) is the vertical opening width in the engaging hole 16 (the width between the first opening edges 18 and 18 in the vertical direction). ) Is formed larger than. Therefore, when the engaging claw 14 is fitted into the engaging hole 16, the return portion 24 is pushed into the engaging hole 16 while deforming the first opening edge 18 and the like. Further, the engaging claw 14 is provided with a support piece 28 that projects downward from the lower surface of the root portion connected to the first member 10 in the insertion portion 22. Then, when the engaging claw 14 is fitted into the engaging hole 16, the engaging claw 14 is supported by the support piece 28 placed on the installation portion 12a. With such a configuration, the support piece 28 exerts a force to push up the engaging claw 14 upward, and the upper surface of the insertion portion 22 can be strongly pressed against the upper first opening edge 18A.

As shown in FIGS. 1 to 4, when the engaging claw 14 is fitted into the engaging hole 16, the engaging claw 14 is relative to the second opening edge 20 of the engaging hole 16 with a gap. It is provided with a positioning portion 26 provided on a separating surface of the insertion portion 22 to be inserted. In the embodiment, the left outer surface of the insertion portion 22 of the left engaging claw 14 is applied to the left second opening edge 20B, and the right outer surface of the insertion portion 22 and the right second opening edge 20A of the right engaging claw 14 are applied. Since it is set so that there is a gap between the two, the right outer surface of the insertion portion 22 on the right side serves as a separation surface on which the positioning portion 26 is provided (see FIG. 5). The positioning portion 26 is a plate-shaped portion formed so as to protrude from the right outer surface of the insertion portion 22 toward the right second opening edge 20A, and is integrally formed with the insertion portion 22. The positioning portion 26 is bent so as to have at least one bent portion 30 that bends toward one first opening edge 18 and then toward the other first opening edge 18 facing the first opening edge 18. It is formed in a vertical shape.

As shown by the alternate long and short dash line in FIG. 5A, the width of the positioning portion 26 in the left-right direction (protruding direction of the positioning portion 26) from the right outer surface (separation surface) of the insertion portion 22 is larger than the gap. It has a large formed portion, and this portion fits into the engaging hole 16. In the positioning portion 26 of the embodiment, the distance between the right outer surface of the insertion portion 22 and the tip edge on the opposite side to the root connected to the right outer surface is the gap between the right outer surface and the right second opening edge 20A. It is formed larger than (design margin dimension). As described above, the positioning portion 26 is set so as to interfere with the right second opening edge 20A when the engaging claw 14 is fitted into the engaging hole 16. The positioning portion 26 is configured to be elastically deformable in a direction in which the tip edge approaches the right outer surface of the insertion portion 22 due to interference with the right second opening edge 20A (solid line in FIG. 5A). reference).

As shown in FIGS. 4 and 5A, the positioning portion 26 of the embodiment is a root piece from the right outer surface of the insertion portion 22 toward the lower first opening edge 18B on the side opposite to the protruding direction of the return portion 24. It has a 26a and an extending piece 26b that is folded back from the root piece 26a and directed toward the upper first opening edge 18A, and is viewed from the front (when viewed from the tip side of the engaging claw 14 in the penetrating direction of the engaging hole 16). It is formed in a substantially "U" shape. In the positioning portion 26, the bent portion 30 connecting the root piece 26a and the extension piece 26b is curved so as to be convex toward the lower first opening edge 18B, and the extension piece 26b has an open end edge pointing upward. , The above-mentioned tip edge in the positioning portion 26. The positioning portion 26 is elastically deformable in a direction in which the extension piece 26b and / or the root piece 26a approaches the right outer surface of the insertion portion 22.

As shown in FIG. 5A, when the engaging claw 14 is fitted into the engaging hole 16, the tip edge of the positioning portion 26 is formed by the upper first opening edge 18A and the right second opening edge 20A. The bent portion 30 is configured to hit the corner portion and to hit the upper first opening edge 18A forming the corner portion and another lower first opening edge 18B. More specifically, when the engaging claw 14 is fitted into the engaging hole 16, the positioning portion 26 hits the corner portion formed by the upper first opening edge 18A and the right second opening edge 20A at the tip edge. The tip edge is elastically deformed in a direction approaching the right outer surface of the insertion portion 22. Along with this, the bent portion 30 is pressed against the upper first opening edge 18A forming the corner and another lower first opening edge 18B. At this time, the bent portion 30 is deformed so that the degree of bending of the bent portion 30 is gentler than that before fitting into the engaging hole 16, and the contact area between the lower first opening edge 18B and the bent portion 30. Becomes larger. The positioning portion 26 is set so that the tip edge interferes with the upper first opening edge 18A to urge the bent portion 30 toward the lower first opening edge 18B, or the bent portion 30 is set to interfere with the lower first opening edge 18B. The tip edge may be urged toward the upper first opening edge 18A by setting so as to interfere with the above, or both of them may be used. In this way, the positioning portion 26 is not only a strut in the left-right direction between the right outer surface of the insertion portion 22 and the right second opening edge 20A of the engagement hole 16, but also in the vertical direction of the engagement hole 16. It is a vertical tension between the first opening edges 18A and 18B.

As shown in FIGS. 1 and 2, the positioning portion 26 is provided from the position on the tip side of the insertion portion 22 with respect to the return portion 30 in the overhanging direction toward the root side connected to the first member 10 of the insertion portion 22. Has been done. In other words, when the positioning portion 26 and the return portion 24 are viewed from the right side, the positioning portion 26 and the return portion 24 are provided so as to overlap each other in the vertical direction. In the embodiment, the positioning portion 26 is not provided at the tip of the engaging claw 14, and the positioning portion 26 is provided on the engaging claw 14 from an intermediate position in the overhanging direction toward the first member 10.

As shown in FIG. 3, the positioning portion 26 is located at a position where the tip end side of the insertion portion 22 interferes with the second opening edge 20 when the engaging claw 14 is fitted into the engaging hole 16. The vertical dimension (dimension in the protruding direction of the return portion 24) is formed to be small. In the positioning portion 26, the position where the positioning portion 26 and the return portion 24 overlap when viewed from the right side in the projecting direction of the insertion portion 22 from the first member 10 is larger than the vertical opening dimension of the engaging hole 16. Should also be formed small. The vertical dimension of the positioning portion 26 of the embodiment increases from the tip end side of the engaging claw 14 toward the fitting position into the engaging hole 16 when the engaging claw 14 is fitted into the engaging hole 16. Is formed in. The vertical dimension of the positioning portion 26 is set to be the same as or slightly larger than the vertical opening width of the engaging hole 16 at the fitting position, and the vertical dimension on the root side of the fitting position is the same. .. The positioning portion 26 is formed so that the vertical position of the bent portion 30 changes without changing the vertical position of the tip edge when the vertical dimension is changed, and the positioning portion 26 is vertically and vertically located on the root side of the fitting position. The dimensions are the same.

As shown in FIG. 2, the width of the positioning portion 26 in the protruding direction from the right outer surface (separation surface) of the insertion portion 22 increases from the tip end side of the insertion portion 22 toward the root side connected to the first member 10. It is formed to be. In the positioning portion 26 of the embodiment, the distance between the right outer surface (separation surface) of the insertion portion 22 and the tip edge increases toward the root side connected to the first member 10 from the tip end side of the insertion portion 22. The positioning portion 26 has a larger extension dimension in the left-right direction from the right outer surface of the insertion portion 22 toward the root side from the tip side of the engaging claw 14, and the root side of the engaging claw 14 becomes the engaging hole 16. The more it is passed, the greater the degree of interference between the positioning portion 26 and the right second opening edge 20A of the engaging hole 16. The left and right dimensions of the positioning portion 26 are set so as to be slightly larger than the gap (design margin dimension) between the right outer surface of the insertion portion 22 and the right second opening edge 20A at the fitting position. The gap is slightly smaller than the gap on the tip end side of the insertion portion 22.

The fitting of the engaging claw 14 into the engaging hole 16 described above will be described with reference to FIG. The engaging claw 14 is tilted diagonally so that the tip is downward, and the engaging claw 14 is moved while the tapered surface provided at the tip of the return portion 24 is aligned with the upper first opening edge 18A of the engaging hole 16. Push it into the engagement hole 16 (see FIG. 6B). The return portion 24 expands the engagement hole 16 so that the return portion 24 is allowed to pass, the return portion 24 and the positioning portion 26 pass through the engagement hole 16, and the insertion portion 22 is arranged in the engagement hole 16. (See FIG. 6 (c)). By placing the support piece 28 on the installation portion 12a of the second member 12 with the slanted engaging claw 14 horizontal, the upper surface of the insertion portion 22 hits the upper first opening edge 18A of the engaging hole 16. (See Fig. 6 (d)). Then, the first member 10 is fixed to the vehicle body side by fixing the first member 10 to the vehicle body side with a fastener such as a bolt at a fastening portion (not shown). Even if the fastener is removed, the first member 10 assembled in this way is prevented from coming off by the return portion 24 of the engaging claw 14 being caught by the upper first opening edge 18A of the engaging hole 16.

When the engaging claw 14 is fitted into the engaging hole 16, the positioning portion 26 provided on the right outer surface of the right insertion portion 22 faces the engaging hole 16 with a gap from the right outer surface. It elastically hits the right second opening edge 20A. As a result, the two left and right engaging claws 14, 14 are pushed toward the left second opening edge 20B in the engaging hole 16, and the left outer surface of the left insertion portion 22 hits the left second opening edge 20B. Positioning is performed in the left-right direction in this state. Further, since the positioning portion 26 acts as a tension between the right outer surface of the right insertion portion 22 and the right second opening edge 20A of the engaging hole 16, it engages with the two left and right engaging claws 14, 14. The positional relationship in the left-right direction with the hole 16 can be maintained. Therefore, it is possible to prevent rattling between the first member 10 and the second member 12 in the left-right direction, and it is possible to avoid the generation of abnormal noise due to rattling due to vibration during vehicle travel. Further, since the rattling of the first member 10 can be prevented, it is possible to suppress the burden on the fastening portion for fixing the first member 10 to the vehicle body side due to the vibration during the running of the vehicle. Moreover, even if the dimensions are set so that there is a gap between the engaging claw 14 and the second opening edges 20 and 20 in the left-right direction of the engaging hole 16, the positioning portion 26 can prevent rattling, so that the first It is possible to appropriately deal with dimensional errors due to molding of the member 10 and the second member 12. Further, by setting the dimensions so that there is a gap between the engaging claw 14 and the engaging hole 16, the engaging claw 14 can be easily fitted into the engaging hole 16 and the assembling workability is improved. be able to.

The positioning portion 26 is configured such that the tip edge hits the corner formed by the upper first opening edge 18A and the right second opening edge 20A, and the bent portion 30 hits the lower first opening edge 18B. As a result, the positioning portion 26 acts as a tension between the first opening edges 18A and 18B in the vertical direction, so that the positional relationship in the vertical direction can be determined between the engaging claw 14 and the engaging hole 16. Moreover, this state can be maintained. Therefore, the positioning unit 26 can prevent rattling between the first member 10 and the second member 12 in the vertical direction, and can avoid the generation of abnormal noise due to rattling due to vibration during vehicle travel. .. Moreover, in the embodiment, since the engaging claw 14 is supported by the support piece 28 and the upper surface of the insertion portion 22 is pressed against the upper first opening edge 18A, the first member 10 and the second member 12 are pushed in the vertical direction. It can be stabilized so that it does not rattle. Then, since the rattling of the first member 10 can be prevented, it is possible to suppress the burden on the fastening portion for fixing the first member 10 to the vehicle body side due to the vibration during the running of the vehicle. Moreover, even if the dimensions are set so that there is a gap between the engaging claw 14 and the first opening edges 18 and 18 in the vertical direction of the engaging hole 16, the positioning portion 26 can prevent rattling, so that the first It is possible to appropriately deal with dimensional errors due to molding of the member 10 and the second member 12. Further, by setting the dimensions so that there is a gap between the engaging claw 14 and the engaging hole 16, the engaging claw 14 can be easily fitted into the engaging hole 16 and the assembling workability is improved. Can be done.

Since the positioning portion 26 is provided from the position on the tip side of the insertion portion 22 with respect to the return portion 24 in the overhanging direction toward the root side connected to the first member 10 of the insertion portion 22, the return portion 24 provides the positioning portion 26. When the engaging hole 16 is expanded, the positioning portion 26 can be inserted into the engaging hole 16. Therefore, even if the positioning portion 26 is provided, the engaging claw 14 can be easily fitted into the engaging hole 16, and the assembling workability can be improved.

The positioning portion 26 has a vertical dimension (return portion 24) with respect to a position where the tip end side of the insertion portion 22 interferes with the second opening edge 20 when the engaging claw 14 is fitted into the engaging hole 16. Dimension in the protruding direction) is formed small. That is, when the return portion 24 passes through the engaging hole 16, the positioning portion 26 does not easily interfere with the engaging hole 16, and even if the positioning portion 26 is provided, the engaging claw 14 can be easily fitted into the engaging hole 16 and the assembling work. The sex can be improved. Then, after the return portion 24 has passed through the engagement hole 16, the positioning portion 26 can interfere with the opening edges 18 and 20 of the engagement hole 16, so that rattling of the first member 10 can be appropriately prevented. ..

The positioning portion 26 is formed so that the width in the left-right direction (the direction of protrusion from the right outer surface of the insertion portion 22) increases from the tip end side of the insertion portion 22 toward the root side connected to the first member 10. .. As a result, when the positioning portion 26 is passed through the engaging hole 16, the positioning portion 26 does not easily interfere with the engaging hole 16, and even if the positioning portion 26 is provided, the engaging claw 14 can be easily fitted into the engaging hole 16 for assembly. Workability can be improved. Then, after the return portion 24 has passed through the engagement hole 16, the positioning portion 26 can interfere with the opening edges 18 and 20 of the engagement hole 16, so that rattling of the first member 10 can be appropriately prevented. ..

(Change example)
The configuration is not limited to the above-mentioned configuration, and may be changed as follows, for example.
(1) In the embodiment, the positioning portion 26 is provided corresponding only to the second opening edge 20 on one side of the engaging hole 16, but as shown in FIG. 7, the second openings on both sides of the engaging hole 16 are provided. Positioning portions 26 may be provided on the outer sides of the two engaging claws 14, 14 so as to correspond to the edges 20, 20.
(2) The positioning portion 26 is not limited to the front view "U" -shaped embodiment in which the bending portion 30 is one, and includes two or more bending portions 30 as shown in FIG. May be good. In this case, at least one bent portion 30 is applied to the first opening edge 18 opposite to the side on which the return portion 24 protrudes, and the tip edge of the positioning portion 26 is the first opening edge on the side on which the return portion 24 protrudes. It is preferable to use a configuration that applies to 18.
(3) In the embodiment, the corner portion formed by the first opening edge 18 and the second opening edge 20 is formed at a right angle, but the present invention is not limited to this, and as shown in FIG. 9A, the first opening edge 18 is formed. The corner portion formed by the second opening edge 20 and the second opening edge 20 may be formed at an acute angle. At that time, the tip edge (extending piece 26b) of the positioning portion 26 may come into contact with a part or all of the second opening edge 20.
(4) In the embodiment, the positioning portion 26 is formed to have a substantially uniform thickness, but the thickness is not limited to this, and the thickness may be changed depending on the portion. For example, as shown in FIG. 9B, the tip edge side of the positioning portion 26 may be formed to be thicker than the root side. As a result, the elasticity of the positioning portion 26 is increased, and the rattling that occurs between the first member 10 and the second member 12 can be further reduced.
(5) As shown in FIG. 9 (c), the positioning portion 26 faces the tip edge corresponding to the corner formed by the first opening edge 18 and the second opening edge 20 from the tip edge toward the separation surface of the insertion portion 22. 26c may be formed by turning back in the direction. The return 26c increases the elasticity of the positioning portion 26, and can further reduce the rattling that occurs between the first member 10 and the second member 12. The return 26c may be provided only in a part of the positioning portion 26 or may be provided in the whole.
(6) In the embodiment, two engaging claws are fitted into one engaging hole, but one or three or more engaging claws may be fitted into one engaging hole. ..

10 1st member, 12 2nd member, 14 engaging claw, 16 engaging hole, 18 1st opening edge,
20 2nd opening edge, 22 insertion part, 24 return part, 26 positioning part, 30 bending part

Claims (5)

An assembling structure in which an engaging claw provided on a first member is fitted into an engaging hole provided on a second member to assemble the first member and the second member.
The engaging claw
An insertion portion arranged so as to pass through the engaging hole surrounded by the first opening edge and the second opening edge intersecting the first opening edge when the engaging claw is fitted into the engaging hole. When,
A return portion that protrudes from the tip end portion of the insertion portion and is hooked on the first opening edge to prevent the engaging claw from coming off.
When the engaging claw is fitted into the engaging hole, a gap is left with respect to the second opening edge to face the separating surface of the insertion portion, from the separating surface toward the second opening edge. With a positioning part provided so as to protrude,
The positioning portion is formed in a plate shape having a bent portion that bends toward the first opening edge of one side and then toward the first opening edge of the other facing the first opening edge.
The positioning portion has a portion in which the width in the protruding direction from the separation surface is formed to be larger than the gap, and the tip on the side opposite to the root connected to the separation surface due to interference with the second opening edge. An assembling structure of a member, wherein the edge is elastically deformable in a direction in which the tip edge approaches the separation surface. In the positioning portion, the tip edge corresponds to a corner portion formed by the first opening edge and the second opening edge, and at least one of the bent portions is a first opening different from the first opening edge forming the corner portion. The assembly structure of the member according to claim 1, which is configured to hit the edge. The first or second claim, wherein the positioning portion is provided from a position on the tip end side of the insertion portion with respect to the return portion in the overhanging direction toward the root side connected to the first member of the insertion portion. Assembly structure of members. The positioning portion has a dimension in the protruding direction of the return portion rather than a position where the tip end side of the insertion portion interferes with the second opening edge when the engaging claw is fitted into the engaging hole. The assembly structure of the member according to any one of claims 1 to 3, wherein the member is formed to be small. Any of claims 1 to 4, wherein the positioning portion is formed so that the width in the protruding direction from the separation surface increases toward the root side connected to the first member from the tip end side of the insertion portion. Assembling structure of the member described in item 1.

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