Fastener and mounting structure

Abstract

To provide a technology which reduces the size of a base portion in a structure where a projecting portion which contacts with a vehicle body is provided at the base portion of an attachment member attached to the vehicle body.SOLUTION: A fastener includes: a pin; a base portion provided with an opening into which the pin is inserted; an insertion portion which projects from a peripheral portion of the opening in the base portion and is inserted into an attachment hole provided in a vehicle body and which deforms elastically toward a radially outer side of the pin by the pin being inserted into the opening, thereby becoming locked in the attachment hole; an annular sealing portion which projects from a peripheral portion of the insertion portion in the base portion and which seals a gap between the vehicle body and the base portion by coming into contact with the vehicle body in a state in which the insertion portion is locked in the attachment hole; and a projecting portion which projects from the peripheral portion of the insertion portion in the base portion, has a part that overlaps the sealing portion in an insertion direction of the pin, and comes into contact with the vehicle body in the locked state; the fastener having an attachment member attached to the vehicle body.SELECTED DRAWING: Figure 11

Description

Technical Field

[0001] The present disclosure relates to a fastener and an attachment structure.

Background Art

[0002] Patent Document 1 discloses a clip provided on a bumper retainer (attachment member), which includes a thin-walled flange (sealing portion) that is elastically pressed against a body panel (vehicle body) and seals below the bottom (base portion) of the retainer body, and a pair of abutting portions (contact portions) that contact the body panel and prevent the thin-walled flange from being crushed. In this structure, the pair of abutting portions are arranged on both the left and right sides with the thin-walled flange interposed therebetween and extend linearly in the vertical direction.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the structure disclosed in Patent Document 1, in a state where the bumper retainer is attached to the body panel, the posture of the bumper retainer is maintained by the pair of abutting portions. However, depending on the load applied to the body panel, there is a risk that the bumper retainer may tilt (fall over) in the vertical direction with respect to the body panel. For this reason, there is a tendency to increase the vertical length of the pair of abutting portions from the viewpoint of posture maintenance, and it is difficult to reduce the size of the bottom portion of the retainer body.

[0005] One aspect of the present disclosure aims to provide a technique capable of reducing the size of a base portion in a configuration in which a protruding portion that contacts the vehicle body is provided at the base portion of an attachment member attached to the vehicle body.

Means for Solving the Problems

[0006] The fastener according to the first aspect of the present disclosure includes a pin, a base provided with an opening into which the pin is inserted, a projecting portion that projects from a peripheral portion of the opening in the base and is inserted into a mounting hole provided in a vehicle body, and an insertion portion that is inserted into the opening and is elastically deformed radially outward of the pin by the pin inserted into the opening and is locked to the mounting hole. The fastener further includes an annular sealing portion that projects from a peripheral portion of the insertion portion in the base and seals between the vehicle body and the base by contacting the vehicle body in a state where the insertion portion is locked to the mounting hole, and a projecting portion that projects from a peripheral portion of the insertion portion in the base, has a portion that overlaps the sealing portion in the insertion direction of the pin, and contacts the vehicle body in the locked state. The fastener also includes a mounting member attached to the vehicle body.

[0007] In the fastener according to the first aspect, the insertion portion of the mounting member is inserted into the mounting hole of the vehicle body, and in this state, the pin is inserted into the opening of the base. As a result, the inserted pin elastically deforms the insertion portion radially outward of the pin and locks it to the mounting hole. In a state where the insertion portion is locked to the mounting hole, the sealing portion contacts the vehicle body and seals between the vehicle body and the base. Further, in a state where the insertion portion is locked to the mounting hole, the projecting portion protruding from the base contacts the vehicle body. Here, in the fastener, since the projecting portion that contacts the vehicle body has a portion that overlaps the sealing portion in the insertion direction of the pin, for example, compared with a configuration in which the entire projecting portion is disposed on the outer periphery (radially outward) of the sealing portion, it is possible to reduce the size of the base in the mounting member.

[0008] The fastener according to the second aspect of the present disclosure is the fastener according to the first aspect, wherein a portion of the projecting portion that contacts the vehicle body is disposed radially outward of the sealing portion.

[0009] In the fastener according to the second aspect, since the portion of the projecting portion that contacts the vehicle body is disposed radially outward of the sealing portion, the distance from the center of the opening of the base to the portion of the projecting portion that contacts the vehicle body becomes longer, and it is possible to suppress the inclination of the mounting member attached to the vehicle body.

[0010] The fastener according to the third aspect of the present disclosure is the fastener according to the first aspect or the second aspect, wherein the sealing portion is an elastically deformable plate-shaped portion whose diameter gradually increases from the root portion toward the tip portion.

[0011] In the fastener according to the third aspect, since the sealing portion is an elastically deformable plate-shaped portion whose diameter gradually increases from the root portion toward the tip portion, that is, a suction cup-shaped portion, it is easy to ensure the sealing property between the vehicle body and the base portion.

[0012] The fastener according to the fourth aspect of the present disclosure is the fastener according to any one of the first aspect to the third aspect, wherein the overlapping portion of the protruding portion is an inclined surface whose protruding height from the base portion gradually decreases toward the radially inner side.

[0013] In the fastener according to the fourth aspect, the portion of the protruding portion that overlaps the sealing portion in the insertion direction of the pin is an inclined surface. Thereby, when integrally molding the base portion, the insertion portion, the sealing portion, and the protruding portion, it is possible to secure the pulling-out direction of the slide die for molding the sealing portion and the protruding portion. Further, in the above fastener, since the thickness of the portion forming the inclined surface in the slide die can be ensured, damage to the slide die can be suppressed.

[0014] The fastener according to the fifth aspect of the present disclosure is the fastener according to any one of the first aspect to the fourth aspect, wherein a groove portion extending away from the center of the opening is provided in the protruding portion.

[0015] In the fastener according to the fifth aspect, a groove portion extending away from the center of the opening is provided in the protruding portion having a portion overlapping the sealing portion in the insertion direction of the pin. Thereby, when integrally molding the base portion, the insertion portion, the sealing portion, and the protruding portion, since the thickness of the portion forming the groove portion in the slide die for molding the sealing portion and the protruding portion can be ensured, damage to the slide die can be suppressed.

[0016] The fastener according to the sixth aspect of the present disclosure is the fastener according to any one of the first aspect to the fifth aspect, wherein a plurality of the protruding portions are provided at intervals around the insertion portion.

[0017] In the fastener according to the sixth aspect, since a plurality of protruding portions are provided at intervals around the insertion portion at the base portion, it is possible to suppress the tilting of the attachment member attached to the vehicle body.

[0018] The fastener according to the seventh aspect of the present disclosure is the fastener according to any one of the first to third aspects, wherein a first protruding portion protruding from the peripheral portion and a second protruding portion as the protruding portion are arranged at intervals around the peripheral portion of the insertion portion. The pair of first protruding portions are arranged at positions radially outside the seal portion and facing each other with the seal portion interposed therebetween, and the pair of second protruding portions are arranged at positions facing each other between the adjacent first protruding portions and with the seal portion interposed therebetween.

[0019] In the fastener according to the seventh aspect, since the pair of first protruding portions are arranged at positions facing each other with the seal portion interposed therebetween, and the pair of second protruding portions are arranged at positions facing each other between the adjacent first protruding portions and with the seal portion interposed therebetween, for example, compared with a configuration in which two second protruding portions are arranged between adjacent first protruding portions, since the first protruding portions and the second protruding portions are arranged at intervals from each other, the effect of suppressing the tilting of the attachment member attached to the vehicle body by the first protruding portions and the second protruding portions is further improved.

[0020] The fastener according to the eighth aspect of the present disclosure is the fastener according to the seventh aspect, wherein when the base portion is viewed from the side opposite to the insertion direction of the pin, the pair of first protruding portions are arranged at positions orthogonal to the pair of second protruding portions.

[0021] In the fastener according to the eighth aspect, since the pair of first protruding portions are arranged at positions orthogonal to the pair of second protruding portions, for example, compared with a configuration in which the pair of first protruding portions are not arranged at positions orthogonal to the pair of second protruding portions, the effect of suppressing the tilting of the attachment member attached to the vehicle body by the first protruding portions and the second protruding portions is further improved.

[0022] The fastener according to the ninth aspect of the present disclosure is the fastener according to the seventh aspect or the eighth aspect, wherein the second protrusion is provided with a groove extending away from the center of the opening, and the overlapping portion of the second protrusion is an inclined surface whose protruding height from the base portion gradually decreases toward the radially inner side.

[0023] In the fastener according to the ninth aspect, the overlapping portion of the second protrusion and the sealing portion in the insertion direction of the pin is an inclined surface. Thereby, when integrally molding the base portion, the insertion portion, the sealing portion, and the second protrusion, the extraction direction of the slide mold for molding the sealing portion and the second protrusion can be ensured. Further, in the above fastener, since the thickness of the portion forming the inclined surface in the slide mold can be ensured, damage to the slide mold can be suppressed. Further, in the fastener, the second protrusion is provided with a groove extending away from the center of the opening. Thereby, since the thickness of the portion forming the groove in the slide mold for molding the sealing portion and the second protrusion can be ensured, damage to the slide mold can be suppressed.

[0024] The fastener according to the tenth aspect of the present disclosure is the fastener according to any one of the first aspect to the ninth aspect, wherein the attachment member is a retainer for attaching a bumper.

[0025] In the fastener according to the tenth aspect, the inclination of the retainer, which is an attachment member attached to the vehicle body, can be suppressed. That is, the inclination of the bumper attached to the vehicle body via the retainer can be suppressed.

[0026] The attachment structure according to the eleventh aspect of the present disclosure includes a vehicle body having an attachment hole and the fastener according to the eighth aspect for attaching an attachment member to the vehicle body, and a pair of second protrusions are in contact with the vehicle body in a state of facing each other with the sealing portion interposed therebetween in the vehicle up-and-down direction.

[0027] In the mounting structure of the eleventh aspect, a pair of second protruding portions face each other with a sealing portion therebetween in the vehicle vertical direction. Further, the pair of first protruding portions are arranged at positions orthogonal to the pair of second protruding portions. For this reason, the inclination of the mounting member with respect to the vehicle body when the mounting member is attached to the vehicle body is suppressed.

Advantages of the Invention

[0028] According to one aspect of the present disclosure, it is possible to provide a technique capable of reducing the size of the base portion in a configuration in which a protruding portion that contacts the vehicle body is provided at the base portion of a mounting member attached to the vehicle body.

Brief Description of the Drawings

[0029]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Embodiments for Carrying out the Invention

[0030] Next, a fastener and an attachment structure according to an embodiment of the present disclosure will be described with reference to FIGS. 1 to 11.

[0031] [Fastener 20] As shown in FIGS. 1 and 2, the fastener 20 of the present embodiment has a pin 30 and an attachment member 40.

[0032] (Pin 30) As shown in FIGS. 2, 7, and 11, the pin 30 is a member that is inserted into an opening 45 (described later) of the attachment member 40. When the pin 30 is inserted into the opening 45, a pair of leg portions 52 (described later) of the attachment member 40 elastically deform and open.

[0033] The pin 30 includes a shaft portion 32, a flange portion 34, a first engagement portion 36, and a second engagement portion 38. The flange portion 34 is a portion that protrudes radially outward from the end of the shaft portion 32 on the side opposite to the insertion direction of the pin 30. The first engagement portion 36 is a concave portion provided at the end of the shaft portion 32 on the insertion direction side of the pin 30, and claws 53 provided on a pair of leg portions 52 (described later) are engaged therewith. Also, the second engagement portion 38 is a concave portion provided at a portion of the shaft portion 32 on the side opposite to the insertion direction of the pin 30 with respect to the first engagement portion 36, and claws 55 of a pair of leg portions 54 are engaged therewith. In the fastener 20 of the present embodiment, the fastener 20 is shipped with the claws 53 of the pair of leg portions 52 in the attachment member 40 engaged with the first engagement portion 36 of the pin 30.

[0034] (Attachment member 40) As shown in FIGS. 7 and 11, the attachment member 40 is a member attached to the vehicle body (as an example, a body panel) 100. In the present embodiment, the attachment member 40 is a retainer (bumper attachment retainer) for attaching a bumper (not shown) as an example of vehicle parts to the vehicle body 100. Note that the present disclosure is not limited to this configuration, and the attachment member 40 may have any configuration as long as it can attach vehicle parts to the vehicle body 100. Examples of vehicle parts include exterior parts of the vehicle, interior parts, brackets (including retainers) for attaching parts to the vehicle body, and the like.

[0035] Also, in the present embodiment, as described above, the attachment member 40 is a retainer, but the present disclosure is not limited to this configuration. For example, the attachment member 40 and the retainer may be configured to be detachable, and the retainer may be attached to the vehicle body 100 via the attachment member 40 attached to the retainer.

[0036] Note that the attachment member 40 of the present embodiment is an integrally molded resin product.

[0037] As shown in FIGS. 2 to 11, the attachment member 40 includes a base portion 44, an insertion portion 50, a seal portion 60, and a protruding portion 70. Since the attachment member 40 of the present embodiment is a retainer, as shown in FIGS. 2, 3, and 8, a plurality of attachment portions 42 including the base portion 44, the insertion portion 50, the seal portion 60, and the protruding portion 70 are provided on the main body 41.

[0038] The base portion 44 is a flat top portion of a convex portion formed by extruding the main body 41 to one side in the thickness direction (the left side in FIG. 7). An opening 45 into which the pin 30 is inserted is provided at the center of the base portion 44. Note that in the present embodiment, the base portion 44 is the flat top portion of the convex portion, but the present disclosure is not limited to this configuration. For example, a flat portion may be formed on a part of the main body 41, and that portion may be used as the base portion 44.

[0039] Further, the surface 44A of the base portion 44 is flat. Here, the surface of the base portion 44 refers to the top surface of the convex portion. Also, the surface of the base portion 44 faces the surface (outer surface) of the vehicle body 100 when the attachment member 40 is attached to the vehicle body 100.

[0040] The insertion portion 50 has a pair of leg portions 52 that project from the peripheral portion of the opening 45 in the base portion 44. Specifically, the pair of leg portions 52 project from the edge portion (the edge portion on the surface 44A side) of the opening 45 in the base portion 44 in the insertion direction of the pin 30. Also, the pair of leg portions 52 are arranged to face each other.

[0041] Further, the insertion portion 50 is inserted into the attachment hole 102 provided in the vehicle body 100. That is, the pair of leg portions 52 are inserted into the attachment hole 102.

[0042] Also, the insertion portion 50 is elastically deformed radially outward of the pin 30 by the pin 30 inserted into the opening 45. Specifically, when the pin 30 is inserted into the opening 45, the pair of leg portions 52 are pressed radially outward by the pin 30 and open (also referred to as leg opening).

[0043] Here, when the pair of leg portions 52 are inserted into the attachment hole 102 and the pair of leg portions 52 are leg-opened by the pin 30, the pair of leg portions 52 are locked to the attachment hole 102. Specifically, the outer portion of the leg portion 52 is caught by the edge portion of the attachment hole 102.

[0044] As shown in FIGS. 2, 7, and 11, the seal portion 60 projects from the peripheral portion of the insertion portion 50 in the base portion 44. Specifically, the seal portion 60 projects annularly from the surface 44A of the base portion 44 in the same direction as the protruding direction of the leg portions 52 so as to surround the pair of leg portions 52. Specifically, the seal portion 60 is an elastically deformable plate-like portion whose diameter gradually increases from the root portion toward the tip portion, and seals the space between the vehicle body 100 and the base portion 44 by contacting the vehicle body 100. More specifically, the seal portion 60 is a suction cup-like portion provided on the surface 44A of the base portion 44 so as to surround the pair of leg portions 52, and seals the space between the vehicle body 100 and the base portion 44 by closely adhering to the peripheral portion of the mounting hole 102 in the vehicle body 100.

[0045] In addition, in the present embodiment, with the pair of leg portions 52 locked to the mounting hole 102, the seal portion 60 contacts the vehicle body 100, thereby sealing the space between the vehicle body 100 and the base portion 44.

[0046] Three or more protruding portions 70 are provided at intervals around the peripheral portion of the insertion portion 50 in the base portion 44. Specifically, the protruding portions 70 project from the surface 44A of the base portion 44 in the same direction as the protruding direction of the leg portions. Further, the protruding portions 70 are arranged at equal intervals. In the present embodiment, four protruding portions 70 are provided at equal intervals on the surface 44A of the base portion 44, but the present disclosure is not limited to this configuration. Three or five or more protruding portions 70 may be provided on the surface 44A of the base portion 44.

[0047] Further, the top surface 70A of the protruding portion 70 is a flat surface. The top surface 70A of the protruding portion 70 is in contact with the flat surface of the peripheral portion of the mounting hole 102 in the vehicle body 100. That is, the top surface 70A of the protruding portion 70 can be said to be the portion of the protruding portion 70 that contacts the vehicle body 100.

[0048] In the present embodiment, four protruding portions 70 are provided on the base portion 44. The four protruding portions 70 include a pair of first protruding portions 72 and a pair of second protruding portions 74.

[0049] A pair of first protrusions 72 are arranged at positions radially outside the seal portion 60 and facing each other with the seal portion 60 interposed therebetween. Note that the first protrusion 72 of the present embodiment is an example of the first protrusion in the present disclosure.

[0050] A pair of second protrusions 74 are arranged at positions facing each other between adjacent first protrusions 72 with the seal portion 60 interposed therebetween. Note that the second protrusion 74 of the present embodiment is an example of the second protrusion in the present disclosure and is an example of a protrusion.

[0051] Also, when viewed from the side opposite to the insertion direction of the pin 30 of the base portion 44, the pair of first protrusions 72 are arranged at positions orthogonal to the pair of second protrusions 74.

[0052] In the present embodiment, the pair of second protrusions 74 are arranged so as to face each other with the seal portion 60 interposed therebetween in the vehicle vertical direction.

[0053] Further, among the four protrusions 70, at least one protrusion 70 has a portion overlapping with the seal portion 60 in the insertion direction of the pin 30. In the present embodiment, among the four protrusions 70, two protrusions 70 facing each other have portions overlapping with the seal portion 60 in the insertion direction of the pin 30. Specifically, the pair of second protrusions 74 have the above-described overlapping portions.

[0054] The above-described overlapping portion of the second protrusion 74 is an inclined surface 71 whose protruding height from the base portion 44 gradually decreases toward the radially inner side of the seal portion 60 as shown in FIGS. 3 and 8.

[0055] Further, a groove portion 76 extending away from the center C of the opening 45 in the base portion 44 is provided in the second protrusion 74. Specifically, the groove portion 76 extends away from the center C along the radial direction of the seal portion 60.

[0056] The protrusion 70 of the present embodiment contacts the vehicle body 100 in a state where the insertion portion 50 is locked to the mounting hole 102. Specifically, the top surfaces 70A of the four protrusions 70 contact the vehicle body 100.

[0057] In addition, the mounting member 40 of the present embodiment includes a pair of legs 54 at positions in a direction perpendicular to the pair of legs 52. The pair of legs 54 are inserted into the mounting hole 102 together with the pair of legs 52. By inserting the pair of legs 52 and the pair of legs 54 into the mounting hole 102, rattling of the mounting member 40 is suppressed. Further, claws 55 that protrude in directions facing each other are provided at the tip portions of the pair of legs 54. These claws 55 are configured to be caught by the second engaging portion 38 of the pin 30.

[0058] In the present embodiment, the peripheral portion of the opening 45 on the surface 44A of the base portion 44 is a pedestal that bulges more than other portions, and the pair of legs 52, the pair of legs 54, the seal portion 60, and the four protruding portions 70 are arranged on the seating surface 44B of this pedestal.

[0059] [Mounting Structure] As shown in FIGS. 7 and 11, the mounting structure S of the present embodiment is a structure for mounting the mounting member 40 to the vehicle body 100. Specifically, the mounting structure S includes the vehicle body 100 and a mounting member 40 attached to the vehicle body 100.

[0060] In the mounting structure S, a pair of second protruding portions 74 are in contact with the vehicle body 100 in a state of facing each other with the seal portion 60 interposed therebetween in the vehicle up-and-down direction. Note that the pair of first protruding portions 72 are in contact with the vehicle body 100 in a state of facing each other with the seal portion 60 interposed therebetween in the left-right direction, which is a direction orthogonal to the vehicle up-and-down direction of the pair of second protruding portions 74, as viewed from the side opposite to the insertion direction of the pin 30.

[0061] Next, the operations and effects of the fastener 20 and the mounting structure S of the present embodiment will be described.

[0062] In the fastener 20 of the present embodiment, a pair of leg portions 52 constituting the insertion portion 50 of the attachment member 40 are inserted into the attachment hole 102 of the vehicle body 100. In this inserted state, the pin 30 is inserted into the opening 45 of the base portion 44. Specifically, with the claw 53 of the leg portion 52 caught on the first engaging portion 36 of the pin 30, the pin 30 is further pushed into the opening 45 (the pin 30 is pushed in until the state shown in FIGS. 7 to 11 is reached). As a result, the pair of leg portions 52 are pushed radially outward of the pin 30 by the inserted pin 30 and elastically deformed. In other words, the pair of leg portions 52 open and are locked to the attachment hole 102. In a state where the pair of leg portions 52 are locked to the attachment hole 102, the seal portion 60 contacts the vehicle body 100 and seals between the vehicle body 100 and the base portion 44. Further, in a state where the pair of leg portions 52 are locked to the attachment hole 102, three or more (four in the present embodiment) protrusions 70 protruding with an interval around the pair of leg portions 52 of the base portion 44 contact the vehicle body 100 respectively.

[0063] Here, in the fastener 20, in a state where the pair of leg portions 52 are locked to the attachment hole 102, in other words, in a state where the attachment member 40 is attached to the vehicle body 100, the four protrusions 70 contact the vehicle body respectively. For this reason, in the fastener 20, for example, compared with a configuration in which two protrusions 70 facing each other with the pair of leg portions 52 interposed therebetween contact the vehicle body 100 respectively, it is possible to suppress the attachment member 40 attached to the vehicle body 100 from tilting, in other words, to suppress the occurrence of a poor attachment. By suppressing the occurrence of a poor attachment of the attachment member 40 to the vehicle body 100 in this way, for example, the burden of the attachment work of the attachment member 40 can be reduced.

[0064] Further, in the fastener 20, the second protrusion 74 has a portion overlapping the seal portion 60 in the insertion direction of the pin 30. For this reason, in the fastener 20, for example, compared with a configuration in which the entire second protrusion 74 is arranged on the outer periphery (radially outward) of the seal portion 60, it is possible to reduce the size of the seating surface 44B (pedestal portion) in the attachment member 40, and it is also possible to reduce the size of the base portion 44. Thereby, it becomes possible to reduce the size of the attachment member 40.

[0065] In the fastener 20 of the present embodiment, since the portion of the second protrusion 74 in contact with the vehicle body 100 is disposed radially outside the seal portion 60, the distance from the center C of the opening 45 of the base portion 44 to each second protrusion 74 becomes longer, and further suppression of the inclination of the attachment member 40 attached to the vehicle body 100 can be achieved.

[0066] In the fastener 20 of the present embodiment, a portion of the second protrusion 74 that overlaps the seal portion 60 in the insertion direction of the pin 30 is defined as an inclined surface 71. Thereby, when integrally molding the base portion 44, the pair of leg portions 52, the pair of leg portions 54, the seal portion 60, and the second protrusion 74, as shown in FIGS. 12 to 14, the pulling-out direction of the slide die 110 for molding the seal portion 60 and the second protrusion 74 can be ensured. Further, in the fastener 20, the thickness of the portion of the slide die 110 that forms the inclined surface 71 can be ensured. For this reason, damage to the slide die 110 can be suppressed by the structure in which the inclined surface 71 of the fastener 20 is provided. Further, in the fastener 20, a groove portion 76 extending away from the center C of the opening 45 is provided in the second protrusion 74. Thereby, since the thickness of the portion of the slide die 110 that forms the groove portion 76 can be further ensured when molding the seal portion 60 and the second protrusion 74, damage to the slide die 110 can be suppressed.

[0067] In the fastener 20 of the present embodiment, the pair of first protrusions 72 are disposed at positions facing each other with the seal portion 60 interposed therebetween. Further, since the pair of second protrusions 74 are disposed at positions facing each other between the adjacent first protrusions 72 and with the seal portion 60 interposed therebetween, for example, compared with a configuration in which two second protrusions 74 are disposed between adjacent first protrusions 72, since the first protrusions 72 and the second protrusions 74 are disposed at intervals from each other, the effect of suppressing the inclination of the attachment member 40 attached to the vehicle body 100 by the first protrusions 72 and the second protrusions 74 is further improved.

[0068] In the fastener 20 of the present embodiment, since the pair of first protrusions 72 are arranged at positions orthogonal to the pair of second protrusions 74, for example, compared with a configuration in which the pair of first protrusions 72 are not arranged at positions orthogonal to the pair of second protrusions 74, the effect of suppressing the inclination of the attachment member 40 attached to the vehicle body 100 by the first protrusions 72 and the second protrusions 74 is further improved.

[0069] In the fastener 20 of the present embodiment, the attachment member 40 is used as a retainer for attaching a bumper. Thereby, the inclination of the bumper attached to the vehicle body 100 via the attachment member 40 can be suppressed.

[0070] In the attachment structure S of the present embodiment, the pair of second protrusions 74 face each other with the seal portion 60 interposed therebetween in the vehicle up-and-down direction. Also, the pair of first protrusions 72 are arranged at positions orthogonal to the pair of second protrusions 74. For this reason, the inclination of the attachment member 40 with respect to the vehicle body 100 when the attachment member 40 is attached to the vehicle body 100 is suppressed.

[0071] In the above-described embodiment, the protrusion 70 includes the first protrusion 72 and the second protrusion 74, but the present disclosure is not limited to this configuration. The protrusion 70 may be composed of only a plurality of second protrusions 74.

[0072] In the above-described embodiment, as shown in FIG. 5, a plurality of protrusions 70 (first protrusion 72 and second protrusion 74) are provided in the peripheral portion of the insertion portion 50 in the base portion 44, but the present disclosure is not limited to this configuration. For example, as in the fastener 120 shown in FIG. 15, an annular protrusion 122 may be provided so as to surround the insertion portion 50 in the peripheral portion of the insertion portion 50 (including the leg portion 52 and the leg portion 54) in the base portion 44. The fastener 120 provided with the annular protrusion 122 in this way can also suppress the attachment member attached to the vehicle body 100 from tilting, in other words, can suppress the occurrence of poor attachment, similar to the above-described fastener 20. Note that reference numeral 124 in FIG. 15 indicates a groove portion. Further, the annular protrusion 122 may include a C-shaped protrusion in which a part is separated in addition to the continuously shaped protrusion.

[0073] Although one embodiment of the present disclosure has been described above, the present disclosure is not limited to the above, and it goes without saying that various modifications other than the above can be made and implemented within the scope not departing from the gist thereof.

[0074] Hereinafter, preferred embodiments of the present disclosure will be appended.

[0075] (Appendix 1) A pin, a base portion provided with an opening into which the pin is inserted, a protruding portion protruding from a peripheral portion of the opening in the base portion, inserted into an attachment hole provided in the vehicle body, and radially outward of the pin by the pin inserted into the opening An insertion portion elastically deformed and locked to the mounting hole, an annular seal portion protruding from a peripheral portion of the insertion portion in the base portion, and contacting the vehicle body in a state where the insertion portion is locked to the mounting hole to seal between the vehicle body and the base portion; and three or more protruding portions protruding at intervals from a peripheral portion of the insertion portion in the base portion and contacting the vehicle body in the locked state, and a mounting member attached to the vehicle body, A fastener having

[0076] In the fastener of Appendix 1, the insertion portion of the mounting member is inserted into the mounting hole of the vehicle body, and in that state, the pin is inserted into the opening of the base portion, so that the insertion portion is elastically deformed radially outward of the pin by the inserted pin and locked to the mounting hole. In a state where the insertion portion is locked to the mounting hole, the seal portion contacts the vehicle body to seal between the vehicle body and the base portion. Further, in a state where the insertion portion is locked to the mounting hole, three or more protruding portions protruding at intervals around the insertion portion of the base portion contact the vehicle body respectively. Here, in the fastener, in a state where the insertion portion is locked to the mounting hole, in other words, in a state where the mounting member is attached to the vehicle body, since three or more protruding portions contact the vehicle body respectively, for example, compared with a configuration in which two protruding portions facing each other across the insertion portion contact the vehicle body respectively, it is possible to suppress the mounting member attached to the vehicle body from tilting, in other words, occurrence of poor mounting.

[0077] (Appendix 2) The fastener according to Appendix 1, wherein the protruding portion is disposed on the radially outer side of the sealing portion.

[0078] In the fastener of Appendix 2, since the protruding portion is disposed on the radially outer side of the sealing portion, for example, compared with a configuration in which the protruding portion is disposed on the radially inner side of the sealing portion, the distance from the center of the opening of the base portion to the protruding portion becomes longer, and it is possible to further suppress the tilting of the attachment member attached to the vehicle body.

[0079] (Appendix 3) The sealing portion is an elastically deformable plate-like portion whose diameter gradually increases from the root portion toward the tip portion, The fastener according to Appendix 2, wherein at least one of the protruding portions has a portion overlapping the sealing portion in the insertion direction of the pin.

[0080] In the fastener of Appendix 3, since at least one of the protruding portions has a portion overlapping the sealing portion in the pin insertion direction, for example, compared with a configuration in which the entire protruding portions are disposed on the outer periphery of the sealing portion, the size of the base portion in the attachment member can be reduced. Thereby, miniaturization of the attachment member can be achieved.

[0081] (Appendix 4) The fastener according to Appendix 3, wherein the overlapping portion of the protruding portion is an inclined surface whose protruding height from the base portion gradually decreases toward the radially inner side.

[0082] In the fastener of Appendix 4, the portion of the protruding portion that overlaps the sealing portion in the pin insertion direction is an inclined surface. Thereby, when integrally molding the base portion, the insertion portion, the sealing portion, and the protruding portion, it is possible to secure the pulling-out direction of the slide mold for molding the sealing portion and the protruding portion. Further, in the above fastener, since the thickness of the portion forming the inclined surface in the slide mold can be ensured, damage to the slide mold can be suppressed.

[0083] (Appendix 5) The fastener according to Appendix 3 or Appendix 4, wherein the protruding portion having the overlapping portion is provided with a groove portion extending away from the center of the opening.

[0084] In the fastener of Supplementary Note 5, a groove portion extending away from the center of the opening is provided in a protruding portion having a portion overlapping the seal portion in the pin insertion direction. Thereby, when integrally molding the base portion, the insertion portion, the seal portion, and the protruding portion, it is possible to secure the thickness of the portion forming the groove portion in the slide mold for molding the seal portion and the protruding portion, so that damage to the slide mold can be suppressed.

[0085] (Supplementary Note 6) The protruding portion includes a pair of first protruding portions and a pair of second protruding portions. The pair of first protruding portions are arranged at positions radially outside the seal portion and facing each other with the seal portion therebetween. The pair of second protruding portions are arranged at positions facing each other between the adjacent first protruding portions and with the seal portion therebetween, and have portions overlapping the seal portion in the pin insertion direction. The fastener according to Supplementary Note 2.

[0086] In the fastener of Supplementary Note 6, since a pair of first protruding portions are arranged at positions facing each other with the seal portion therebetween, and a pair of second protruding portions are arranged at positions facing each other between the adjacent first protruding portions and with the seal portion therebetween, for example, compared with a configuration in which two second protruding portions are arranged between adjacent first protruding portions, the first protruding portions and the second protruding portions are arranged at intervals from each other, so that the effect of suppressing the inclination of the attachment member attached to the vehicle body by the first protruding portions and the second protruding portions is further improved.

[0087] (Supplementary Note 7) The fastener according to Supplementary Note 6, wherein when the base portion is viewed from the side opposite to the pin insertion direction, the pair of first protruding portions are arranged at positions orthogonal to the pair of second protruding portions.

[0088] In the fastener of Supplementary Note 7, since a pair of first protruding portions are arranged at positions orthogonal to a pair of second protruding portions, for example, compared with a configuration in which the pair of first protruding portions are not arranged at positions orthogonal to the pair of second protruding portions, the effect of suppressing the inclination of the attachment member attached to the vehicle body by the first protruding portion and the second protruding portion is further improved.

[0089] (Supplementary Note 8) The second protruding portion is provided with a groove portion extending away from the center of the opening. The overlapping portion of the second protruding portion is an inclined surface whose protruding height from the base portion gradually decreases toward the radially inner side, the fastener according to Supplementary Note 6 or Supplementary Note 7.

[0090] In the fastener of Supplementary Note 8, the overlapping portion of the second protruding portion and the seal portion in the pin insertion direction is an inclined surface. Thereby, when integrally molding the base portion, the insertion portion, the seal portion, and the second protruding portion, the extraction direction of the slide mold for molding the seal portion and the second protruding portion can be secured. Further, in the above fastener, since the thickness of the portion forming the inclined surface in the slide mold can be ensured, damage to the slide mold can be suppressed. Further, in the fastener, the second protruding portion is provided with a groove portion extending away from the center of the opening. Thereby, since the thickness of the portion forming the groove portion in the slide mold for molding the seal portion and the second protruding portion can be ensured, damage to the slide mold can be suppressed.

[0091] (Supplementary Note 9) The attachment member is a retainer for attaching a bumper, the fastener according to any one of Supplementary Notes 1 to 8.

[0092] In the fastener of Supplementary Note 9, the inclination of the retainer, which is an attachment member attached to the vehicle body, can be suppressed. That is, the inclination of the bumper attached to the vehicle body via the retainer can be suppressed.

[0093] (Supplementary Note 10) A pin, A base provided with an opening into which the pin is inserted, a portion protruding from a peripheral portion of the opening in the base, inserted into a mounting hole provided in a vehicle body, and elastically deformed radially outward of the pin by the pin inserted into the opening and locked to the mounting hole. An insertion portion, a circular sealing portion that protrudes from a peripheral portion of the insertion portion in the base and seals between the vehicle body and the base by contacting the vehicle body in a state where the insertion portion is locked to the mounting hole, and a circular protrusion that protrudes from a peripheral portion of the insertion portion in the base, surrounds the insertion portion, and contacts the vehicle body in the locked state. A mounting member attached to the vehicle body, A fastener having

[0094] In the fastener of Supplementary Note 10, the insertion portion of the mounting member is inserted into the mounting hole of the vehicle body, and in that state, the pin is inserted into the opening of the base, so that the inserted pin elastically deforms the insertion portion radially outward of the pin and locks it to the mounting hole. In a state where the insertion portion is locked to the mounting hole, the sealing portion contacts the vehicle body and seals between the vehicle body and the base. Further, in a state where the insertion portion is locked to the mounting hole, an annular protrusion surrounding the insertion portion of the base contacts the vehicle body. Here, in the fastener, in a state where the insertion portion is locked to the mounting hole, in other words, in a state where the mounting member is attached to the vehicle body, since the annular protrusion contacts the vehicle body, for example, compared with a configuration in which two opposing protrusions sandwiching the insertion portion each contact the vehicle body, it is possible to suppress the mounting member attached to the vehicle body from tilting, in other words, occurrence of poor mounting.

[0095] (Supplementary Note 11) A vehicle body provided with a mounting hole, The fastener according to Supplementary Note 7 for attaching a mounting member to the vehicle body, Comprising A mounting structure in which a pair of second protrusions contact the vehicle body in a state of facing each other with the sealing portion interposed therebetween in the vehicle up-and-down direction.

[0096] In the attachment structure of Appendix 11, a pair of second protrusions face each other with a seal portion sandwiched therebetween in the vehicle vertical direction. Also, a pair of first protrusions are arranged at positions orthogonal to the pair of second protrusions. For this reason, the inclination of the attachment member with respect to the vehicle body when the attachment member is attached to the vehicle body is suppressed.

Explanation of Signs

[0097] 20 Fastener 30 Pin 32 Shaft portion 34 Flange portion 36 First engaging portion 38 Second engaging portion 40 Attachment member 41 Body 42 Attachment portion 44 Base portion 44A Surface 45 Opening 50 Insertion portion 52 Leg portion 53 Claw 54 Leg portion 60 Seal portion 70 Protrusion 70A Top surface 71 Inclined surface 72 First protrusion 74 Second protrusion (an example of a protrusion) 76 Groove portion 100 Vehicle body 102 Attachment hole 110 Slide type 120 Fastener 122 Protrusion 124 Groove portion C Center S Attachment structure

Claims

1. a pin, a base provided with an opening into which the pin is inserted, an insertion portion that protrudes from a peripheral portion of the opening in the base, is inserted into a mounting hole provided in a vehicle body, and is elastically deformed radially outward of the pin to be locked to the mounting hole, and an annular seal portion that protrudes from a peripheral portion of the insertion portion in the base and seals between the vehicle body and the base by contacting the vehicle body in a state where the insertion portion is locked to the mounting hole, a protruding portion that protrudes from a peripheral portion of the insertion portion in the base, has a portion overlapping the seal portion in the insertion direction of the pin, and contacts the vehicle body in the locked state, and a mounting member attached to the vehicle body, having a fastener, wherein a groove portion extending away from the center of the opening is provided in the protruding portion.

2. The fastener according to claim 1, wherein a portion of the protruding portion that contacts the vehicle body is disposed radially outside the seal portion.

3. The fastener according to claim 1, wherein the seal portion is an elastically deformable plate-like portion whose diameter gradually increases from a root portion toward a tip portion.

4. The fastener according to claim 1, wherein the overlapping portion of the protruding portion is an inclined surface whose protruding height from the base gradually decreases toward the radially inner side.

5. The fastener according to any one of claims 1 to 4, wherein a plurality of the protruding portions are provided at intervals around the peripheral portion of the insertion portion.

6. a pin, a base provided with an opening into which the pin is inserted, an insertion portion that protrudes from a peripheral portion of the opening in the base, is inserted into a mounting hole provided in a vehicle body, and is elastically deformed radially outward of the pin to be locked to the mounting hole, and an annular seal portion that protrudes from a peripheral portion of the insertion portion in the base and seals between the vehicle body and the base by contacting the vehicle body in a state where the insertion portion is locked to the mounting hole, a protruding portion that protrudes from a peripheral portion of the insertion portion in the base, has a portion overlapping the seal portion in the insertion direction of the pin, and contacts the vehicle body in the locked state, and a mounting member attached to the vehicle body, having wherein a first protruding portion protruding from the peripheral portion and a second protruding portion as the protruding portion are disposed at intervals around the peripheral portion of the insertion portion. The pair of the first protrusions are arranged at positions radially outside the seal part and facing each other with the seal part therebetween. The pair of the second protrusions are arranged at positions facing each other with the seal part therebetween between the adjacent first protrusions. A groove portion extending away from the center of the opening is provided in the second protrusion. The overlapping portion of the second protrusion is an inclined surface with a gradually decreasing protruding height from the base portion toward the radially inner side. A fastener. **Claim 7** The fastener according to claim 6, wherein, when the base portion is viewed from the side opposite to the insertion direction of the pin, the pair of the first protrusions are arranged at positions orthogonal to the pair of the second protrusions. **Claim 8** The fastener according to claim 1 or claim 6, wherein the attachment member is a retainer for attaching a bumper. **Claim 9** A vehicle body having an attachment hole, The fastener according to claim 7 for attaching an attachment member to the vehicle body, Comprising, An attachment structure, wherein the pair of second protrusions are in contact with the vehicle body in a state of facing each other with the seal part therebetween in the vehicle up-and-down direction.

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