Fastener

Abstract

To provide a fastener.SOLUTION: The present disclosure provides a fastener comprising: a support disc that has a first side and a second side disposed opposite to each other; a connection part that is connected to the first side of the support disc and extends in an axial direction of the support disc; and a sealing part that is connected to an outer peripheral edge of the support disc and comprises a side wall and an extension portion. in which the side wall extends from the outer peripheral edge of the support disc in a direction away from the connection part, the extension portion is located on an outer side of the side wall and extends from a distal end of the side wall toward the support disc, and a reception groove is formed between the extension portion and an outer surface of the side wall. The fastener in the present disclosure has a simple sealing structure.SELECTED DRAWING: Figure 1A

Description

Technical Field

[0001] The present disclosure relates to fasteners, and in particular to fasteners used in vehicles.

Background Art

[0002] Fasteners can be used to connect multiple components together, for example, to connect interior trim parts, frames, panels, and similar components of a vehicle. For connection, first connect a first component to the fastener, and then attach the fastener with the first component connected thereto in a corresponding hole or groove of a second component. In this way, the first component and the second component are connected.

Summary of the Invention

[0003] The present disclosure provides a fastener for connecting a first component to a second component, the fastener comprising: a support disk having a first side (side surface) and a second side (side surface) disposed opposite to each other; a connection portion connected to the first side of the support disk and extending in the axial direction of the support disk; and a sealing portion connected to the outer peripheral edge of the support disk, the sealing portion comprising a side wall and an extension portion, the side wall extending in a direction away from the connection portion from the outer peripheral edge of the support disk, the extension portion being located outside the side wall and extending from the distal end of the side wall toward the support disk, and a receiving groove being formed between the extension portion and the outer surface of the side wall.

[0004] In the above-described fastener, the fastener is integrally formed from a thermoplastic material, and the sealing portion extends continuously in the circumferential direction.

[0005] In the above-described fastener, the outer surface of the side wall of the sealing portion comprises a first contact surface, the first contact surface being inclined so as to be away from the central axis of the support disk and extending in a direction from the proximal end to the distal end of the side wall.

[0006] In the above-mentioned fastener, the inner surface of the extension portion is provided with a second contact surface, and the second contact surface is inclined so as to be away from the central axis of the support disk and extends in the direction from the distal end of the side wall to the support disk.

[0007] In the above-mentioned fastener, there is a gap in the axial direction of the support disk between the distal end of the extension portion and the second side of the support disk.

[0008] In the above-mentioned fastener, in the axial direction of the support disk, the height of the extension portion is 1 / 3 or more of the height of the side wall.

[0009] In the above-mentioned fastener, the extension portion has a thickness smaller than that of the side wall.

[0010] In the above-mentioned fastener, the connecting portion is provided with a locking portion, and the locking portion includes a pair of first side portions arranged opposite to each other and a pair of second side portions arranged opposite to each other. The distance between the outer sides of the pair of first side portions is larger than the distance between the outer sides of the pair of second side portions. Each of the pair of first side portions has an inclined surface facing the support disk. The fastener is configured to be rotatable within the first component and the second component such that the inclined surface abuts against the surface of the component to be connected so as to clamp the first component and the second component between the support disk and the inclined surface.

[0011] In the above-described fastener, the connection portion further includes a pair of retaining arms. The pair of retaining arms are disposed outside the pair of second side portions. The proximal ends of the pair of retaining arms are connected to the support disk. The distal ends of the pair of retaining arms can bend toward the locking portion. The pair of retaining arms are provided with a first recess and a limiting section arranged in the axial direction of the support disk on their outer sides. The fastener can hold the connection fitting portion of the first component in the first recess, and can move relative to the first component when an external force is applied to the connection portion so that the connection fitting portion of the first component enters the limiting section.

[0012] In the above-described fastener, the fastener is configured such that the fastener can be inserted into the opening of the first component in a first direction. When the fastener holds the connection fitting portion of the first component in the first recess, the distal end of the connection portion extends beyond the opening of the first component in the first direction, and the connection portion reaches a pre-assembled position with respect to the first component.

[0013] In the above-described fastener, when an external force is applied to the connection portion, the connection portion moves away from the pre-assembled position with respect to the first component, and the connection fitting portion of the first component can enter the limiting section. Therefore, the distal end of the connection portion does not extend beyond the opening of the first component in the first direction. After the external force applied to the connection portion is removed, the connection portion can return to the pre-assembled position, and the limiting section is provided with a second recess.

[0014] In the above-described fastener, the fastener further includes an operating portion. The operating portion is connected to the second side of the support disk and surrounded by a sealing portion. The operating portion has an outer surface shape and / or a recess formed for preventing rotation, and thus enables cooperation with a screwdriver tool.

[0015] The fastener in the present disclosure includes a sealing portion that enables a sealed connection between components to be connected. The fastener is an integrally molded part, and its sealing portion does not require a secondary molding process for manufacturing.

Brief Description of the Drawings

[0016]

Figure 1A

Figure 1B

Figure 1C

Figure 1D

Figure 1E

Figure 2A

Figure 2B

Figure 3

Figure 4A

Figure 4B

Figure 5A

Figure 5B

Figure 6A

Figure 6B

Figure 6C

Embodiments for Carrying Out the Invention

[0017] Various specific embodiments of the present disclosure will be described below with reference to the drawings that form a part of this description. Terms such as "front", "rear", "upper", "lower", "left", and "right" indicating directions are used in this disclosure to describe various exemplary structural components and elements of the present disclosure. It should be understood that these terms used in this application are used only for ease of explanation and are determined based on the exemplary orientations shown in the drawings. Since the arrangements in the embodiments disclosed in the present disclosure can be in various directions, these terms indicating directions are merely exemplary and should not be regarded as limiting. Where possible, the same or similar reference numerals used in the present disclosure refer to the same components.

[0018] FIG. 1A is a perspective view of a fastener according to the present disclosure, FIG. 1B is a perspective view of the fastener of FIG. 1A from another perspective, FIG. 1C is a side view of the fastener of FIG. 1B, FIG. 1D is a side view of the fastener of FIG. 1C from another perspective. Specifically, the view of the fastener in FIG. 1D is a view of the fastener in FIG. 1C rotated 90 degrees in the axial direction, and FIG. 1E is a bottom view of the fastener of FIG. 1A.

[0019] The fasteners of FIGS. 1A to 1E are configured to connect two components, for example, to connect an interior trim panel of a vehicle to a sheet metal. As shown in FIGS. 1A to 1E, the fastener 100 includes a support disk 102, a connection portion 130, a sealing portion 150, and an operation portion 180. The support disk 102 is substantially in the shape of a circular plate and has a central axis X1. In the axial direction of the support disk 102, the support disk 102 has a first side 121 and a second side 122 that are arranged opposite to each other. The surfaces of the first side 121 and the second side 122 both extend in the radial direction of the support disk 102. The connection portion 130 is connected to the center of the first side 121 of the support disk 102 and extends in the axial direction of the support disk 102. The sealing portion 150 is connected to the outer peripheral edge 190 of the support disk 102 and extends in a direction away from the connection portion 130. The operation portion 180 is connected to the second side 122 of the support disk 102 and is configured to rotate the fastener 100 in cooperation with a screwing tool.

[0020] When connecting two components using the fastener of FIG. 1A, the fastener 100 is pre - attached to the first component, and then the fastener with the first component connected is attached into the second component, so that the fastener 100 connects the first component to the second component. When the fastener 100 connects the first component to the second component, the sealing portion 150 of the fastener 100 fits with the first component at a corresponding position, thereby forming a seal between the fastener 100 and the first component.

[0021] As shown in FIGS. 1A to 1E, the sealing portion 150 includes a side wall 151 and an extension portion 152. The proximal end 156 of the side wall 151 is connected to the periphery of the support disk 102 and extends outwardly inclined away from the connection portion 130 of the support disk 102, that is, extends away from the central axis X1 along the axial direction of the support disk 102. The extension portion 152 is connected to the distal end 157 of the side wall 151 and extends outwardly inclined toward the support disk 102, that is, extends away from the central axis X1 along the axial direction of the support disk 102. In the axial direction of the support disk, the height of the extension portion 152 does not exceed the height of the support disk 102, that is, there is a gap between the distal end of the extension portion 152 and the support disk 102, and the height of the extension portion 152 is at least 1 / 3 of the height of the side wall 151. The thickness of the extension portion 152 is smaller than the thickness of the side wall 151, and the thickness of the distal end of the extension portion 152 is smaller than the thickness of the proximal end of the extension portion 152. A receiving groove 155 is formed between the extension portion 152 and the side wall 151, and the opening 159 of the receiving groove 155 faces the plane where the support disk 102 is located. The receiving groove 155 is configured to accommodate the corresponding portion of the first component. The receiving groove 155 gradually increases in thickness in the direction from the connection portion between the extension portion 152 and the side wall 151 to the opening 159, facilitating the guiding of the corresponding portion of the first component into the receiving groove 155. The connection portion between the extension portion 152 and the side wall 151 has a smooth transition.

[0022] As shown in FIGS. 1A to 1E, the connection portion 130 extends axially from the center of the first side 121 of the support disk 102. The connection portion 130 includes a locking portion 160 and a pair of elastic arms 171 and 172. The locking portion includes a pair of first side portions 161 and 162 arranged to face each other, and a pair of second side portions 163 and 164 arranged to face each other. The first side portions 161 and 162 are connected to the first side 121 of the support disk 102 at one end, and a pair of protrusions 191 and 192 protruding outward from the outer surfaces of the first side portions 161 and 162 are provided at the other end. The protrusions 191 and 192 each have a pair of inclined surfaces 168 and 169 facing the support disk 102. The inclined surface 168 extends obliquely away from the support disk 102 in the direction from the second side portion 163 to the second side portion 164, and the inclined surface 169 extends obliquely toward the support disk 102 in the direction from the second side portion 163 to the second side portion 164. That is, the inclined surfaces 168 and 169 are inclined in opposite directions in the direction from the second side portion 163 to the second side portion 164. The inclined surfaces 168 and 169 cooperate with the support disk 102 to clamp the first component and the second component to be connected. Each of the inclined surfaces 168 and 169 is spaced from the first side 121 of the support disk 102, and the spacing is related to the thicknesses of the first component and the second component to be connected.

[0023] The connecting portion 130 further includes a pair of holding arms 171 and 172. The holding arms 171 and 172 are disposed outside the pair of second side portions 163 and 164 and are spaced apart from the second side portions 163 and 164. The proximal ends of the holding arms 171 and 172 are connected to the first side 121 of the support disk 102, and their distal ends can bend toward the locking portion 160. The outer sides of the holding arms 171 and 172 are provided with first recesses 191 and 193 arranged along the axial direction of the support disk 102, and restriction sections 186 and 187. In one embodiment of the present disclosure, the restriction sections 186 and 187 are provided with second recesses 192 and 194. The first recesses 191 and 193 are closer to the support disk 102 than the second recesses 192 and 194. The first recesses 191 and 193 are provided with upper guide surfaces 196 and 197. The upper guide surfaces 196 and 197 are located at the ends of the first recesses 191 and 193 away from the support disk 102, and the upper guide surfaces 196 and 197 extend obliquely away from each other in the direction away from the support disk 102. The second recesses 192 and 194 are provided with lower guide surfaces 198 and 199 and restriction surfaces 188 and 189. The lower guide surfaces 198 and 199 are located at the ends of the second recesses 192 and 194 close to the support disk 102, and the restriction surfaces 188 and 189 are located at the ends thereof away from the support disk 102. The lower guide surfaces 198 and 199 extend obliquely toward each other in the direction away from the support disk 102, and the restriction surfaces 188 and 189 extend substantially parallel to the support disk 102.

[0024] After the fastener 100 is attached to the first component, the fastener 100 can move relative to the first component. The first recesses 191 and 193 are configured to pre - attach the fastener into the first component such that the mating portions of the first component are held within the first recesses 191 and 193. During the attachment of the fastener, if the connection portion 130 receives a corresponding external force, the fastener can be moved relative to the first component such that the mating portions of the first component enter the second recesses 192 and 194. The included angles between each of the upper guide surfaces 196, 197, the lower guide surfaces 198, 199 and the extending direction of the support disk 102 are greater than 45 degrees. The upper guide surfaces 196 and 197 and the lower guide surfaces 198 and 199 are configured to guide the corresponding mating portions of the first component to move between the first recesses 191 and 193 and the second recesses 192 and 194. The limiting surfaces 188 and 189 are configured to prevent the fastener 100 from separating from the first component.

[0025] In another embodiment of the present disclosure, the limiting sections 186 and 187 are smooth inclined surfaces and do not include recesses.

[0026] The fastener 100 further includes an operating portion 180. The operating portion 180 is connected to the second side 122 of the support disk 102 and is surrounded by the sealing portion 150. The operating portion 180 has an outer surface shape with an anti - rotation shape. In one embodiment of the present disclosure, the operating portion 180 has a hexagonal outer surface shape. The operating portion 180 further includes a recess 183 with an outer surface shape having an anti - rotation shape. In one embodiment of the present disclosure, the recess 183 is in a Torx (registered trademark) shape. The operating portion 180 and the recess are shaped to cooperate with a screwing tool (e.g., a wrench, a screwdriver) to facilitate rotation of the fastener 100.

[0027] Figure 2A is a cross - sectional view of the fastener in FIG. 1E taken along line A - A, and Figure 2B is a schematic view of the fastener in FIG. 1E taken along line B - B.

[0028] As shown in FIGS. 2A and 2B, the receiving groove 155 is formed between the side wall 151 and the extension portion 152. The receiving groove 155 forms a widened shape with a gradually increasing thickness from the opening at the bottom surface, facilitating guiding the corresponding portion of the first component into the receiving groove 155. The receiving groove 155 has a first contact surface 208 and a second contact surface 209. The first contact surface 208 is formed by the side wall 151. The first contact surface 208 is arranged toward the extension portion 152, inclined away from the second side 122 of the support disk 102, and extends away from the central axis of the support disk. The second contact surface 209 is formed by the extension portion 152. The second contact surface 209 is arranged toward the side wall 151, inclined toward the second side 122 of the support disk 102, and extends away from the central axis of the support disk. The first contact surface 208 and the second contact surface 209 are configured to fit with the corresponding portion of the first component, thereby forming a seal between the fastener 100 and the first component.

[0029] The first retaining arms 171 and 172 are both spaced apart from the locking portion 160 so as to be able to bend toward the locking portion 160. The first retaining arm 171 has a transition portion 211 between its first recess 191 and second recess 192. The second retaining arm 172 has a transition portion 212 between its first recess 193 and second recess 194. The transition portion 211 forms a smooth transition with the upper guide surface 196 and the lower guide surface 198. The transition portion 212 forms a smooth transition with the upper guide surface 197 and the lower guide surface 199, thereby facilitating sliding the fastener 100 relative to the first component between the first recesses 191, 193 and the second recesses 192, 194.

[0030] Figure 3 is a perspective view of the fastener, the first component, and the second component of FIG. 1A. As shown in FIG. 3, the fastener 100 is configured to connect the first component 301 to the second component 302. The first component 301 has a substantially rectangular first opening 331, and the second component 302 has a substantially rectangular second opening 332. When connecting the first component 301 to the second component 302, the fastener 100 is first inserted into the first opening 331 of the first component 301 such that the fastener 100 is pre - attached to the first component 301. Then, the fastener 100 with the first component 301 connected is inserted into the second opening 332 of the second component 302, and the fastener 100 is rotated so that the inclined surfaces 168 and 169 of the locking portion 160 abut against the second component 302. In this way, the fastener 100 connects the first component 301 to the second component 302.

[0031] FIG. 4A is a perspective view of the first component of FIG. 3, and FIG. 4B is a perspective view of the first component of FIG. 4A from another perspective. As shown in FIGS. 4A and 4B, the first component 301 is substantially in the shape of a plate and has a first side 411 and a second side 412 arranged opposite to each other. The first opening 331 is substantially rectangular and penetrates the first side 411 and the second side 412. The first opening 331 has a pair of length - direction sides 421 and 422 and a pair of width - direction sides 423 and 424. When the fastener 100 is inserted into the first opening 331, the length - direction sides 421 and 422 correspond to the second side portions 163 and 164 of the locking portion 160, and the width - direction sides 423 and 424 correspond to the first side portions 161 and 162 of the locking portion 160.

[0032] The first component 301 further includes a pair of receiving portions 436 and 437. The pair of receiving portions 436 and 437 are recessed from the first side 411 toward the second side 412 and are spaced apart from the second side. The pair of receiving portions 436 and 437 are respectively located on the longitudinal sides 421 and 422 and communicate with the first opening 331. The pair of receiving portions 436 and 437 are used to accommodate the pair of holding arms 171 and 172 of the fastener 100. Connection fitting portions 441 and 442 are formed between the bottoms of the receiving portions 436 and 437 and the second side 412. The connection fitting portions 441 and 442 can be fitted with the first recesses 191 and 193 and the second recesses 192 and 194 of the holding arms 171 and 172.

[0033] The first component 301 further includes a sealing fitting portion 450. The sealing fitting portion 450 has an annular wall 451. The first end of the annular wall 451 is connected to the second side 412 of the first component 301 and is arranged around the first opening 331. The diameter of the annular wall 451 corresponds to the dimensions of the sealing portion 150 of the fastener 100 such that the second end of the annular wall 451 can enter the receiving groove 155 of the sealing portion 150 and contact the first contact surface 208 and / or the second contact surface 209, thereby forming a seal between the sealing fitting portion 450 and the sealing portion 150.

[0034] FIG. 5A is a cross-sectional view of the fastener within the first component in the pre-assembled position, and FIG. 5B is a cross-sectional view of the fastener within the first component away from the pre-assembled position. As shown in FIG. 5A, the fastener 100 is inserted into the first opening 331 from the second side 412 of the first component, and when reaching the pre-assembled position, the sealing fitting portion 450 enters the receiving groove 155 of the fastener 100. The connection fitting portions 441 and 442 of the first component 301 enter the first recesses 191 and 193 and are held within the first recesses 191 and 193. In this case, since the connection fitting portions 441 and 442 are blocked by the upper guide surfaces 196 and 197 of the first recesses 191 and 192, the fastener 100 is less likely to fall off from the first component, and the fastener 100 reaches the pre-assembled position relative to the first component 301. In the pre-assembled position, the connection portion 130 of the fastener 100 extends beyond the first side 411 of the first component 301.

[0035] While connecting the fastener 100 with the first component 301 connected thereto to the second component 302, the connecting portion 130 of the fastener 100 may not yet be aligned with the second opening 332 of the second component 302. In this case, if a force is applied to the first component 301 or the second component 302 to bring them closer to each other, the fastener 100 will move relative to the first component 301. As shown in FIG. 5B, when the connecting portion 130 receives a downward external force indicated by the arrow, the holding arms 171 and 172 are pressed by the connecting fitting portions 441 and 442 and bend inward. As a result, the transition portions 211 and 212 of the connecting portion 130 can pass over the connecting fitting portions 441 and 442, and the connecting fitting portions 441 and 442 can enter the second recesses 192 and 194. In this case, the fastener 100 is away from the pre-assembled position with respect to the first component 301. At the position shown in FIG. 5B, the connecting portion 130 is flush with the first side 411 of the first component 301 and does not affect the first component 301 approaching the second component 302. However, at the position shown in FIG. 5B, the fastener 100 is in an unstable position with respect to the first component 301. When the external force is removed, since the holding arms 171 and 172 tend to bend outward, the fastener 100 can slide upward with respect to the first component 301, and the fastener 100 can be returned to the pre-assembled position shown in FIG. 5A.

[0036] FIG. 6A is a perspective view of the fastener attached in the first component and the second component, FIG. 6B is a perspective view of the fastener when the first component is firmly connected to the second component, and FIG. 6C is a cross-sectional view of FIG. 6B.

[0037] As shown in FIG. 6A, when connecting the first component 301 to the second component 302, the fastener 100 is pre - attached to the first component 301, and the connection portion 130 of the fastener 100 is aligned with the second opening 332 of the second component 302. Therefore, when the connection portion 130 passes through the second opening 332, the first component 301 can abut against the second component 302. In this case, the tops of the inclined surfaces 168 and 169 are higher than the first component 301. The fastener 100 then rotates clockwise as shown in FIG. 6A to reach the position shown in FIG. 6B. In this case, the first component 301 is firmly connected to the second component 302.

[0038] As shown in FIGS. 6B and 6C, the bottoms of the inclined surfaces 168 and 169 of the connection portion 130 abut against the surface of the second component 302, and the first component 301 abuts against the first side 121 of the support disk 102. Thus, the first component 301 and the second component 302 are held between the inclined surfaces 168 and 169 and the support disk 102. By rotating the fastener 100, the contact points on the inclined surfaces 168 and 169 can be changed to adjust the pressing force between the first component 301 and the second component 302, so that the first component 301 is firmly connected to the second component 302. As the fastener 100 rotates within the first component 301 and the second component 302, the sealing fitting portion 450 enters the receiving groove of the sealing portion 150, presses against the side wall 151 and the extension portion 152, and slightly deforms the side wall 151 and the extension portion 152. Therefore, the sealing fitting portion 450 contacts at least one of the first contact surface 208 and the second contact surface 209 to form a seal therewith, and the fluids on the two sides of the first component 301 and the second component 302 cannot communicate with each other through the first opening 331 and the second opening 332. In one embodiment of the present disclosure, the first component is a vehicle door module, and the second component is a vehicle door sheet metal.

[0039] The fastener 100 in the present disclosure is an integrally molded part, and its sealing portion does not require secondary processing. The manufacturing process is simple.

[0040] The present disclosure is described with reference to examples of the embodiments outlined above, but various alternative, modified, variant, improved, and / or substantially equivalent forms, whether currently known or foreseeable, or soon to be foreseeable, may be apparent to at least those skilled in the art. Additionally, the technical effects and / or technical problems described herein are illustrative rather than limiting. Accordingly, the present disclosure of this document may be used to solve other technical problems and may have other technical effects. Therefore, various changes can be made without departing from the spirit or scope of the present disclosure. Accordingly, the present disclosure is intended to encompass all known or previously disclosed alternative, modified, variant, improved, and / or substantially equivalent forms.

Claims

1. A fastener for connecting a first component to a second component, comprising: A support disk (102) having a first side (121) and a second side (122) arranged opposite to each other; A connection portion (130) connected to the first side (121) of the support disk (102) and extending in the axial direction of the support disk (102); A sealing portion (150) connected to the outer peripheral edge of the support disk (102), comprising a side wall (151) and an extension portion (152), wherein the side wall (151) extends in a direction away from the connection portion (130) from the outer peripheral edge of the support disk (102), and the extension portion (152) is located outside the side wall (151) and extends from the distal end of the side wall (151) towards the support disk (102), and a receiving groove (155) is formed between the extension portion (152) and the outer surface of the side wall (151); The fastener.

2. The fastener according to claim 1, wherein the fastener is integrally formed from a thermoplastic material, and the sealing portion (150) extends continuously in the circumferential direction.

3. The outer surface of the side wall (151) of the sealing portion (150) comprises a first contact surface (208), and the first contact surface (208) extends while being inclined away from the central axis of the support disk (102) in a direction from the proximal end to the distal end of the side wall (151). The fastener according to claim 1.

4. The inner surface of the extension portion (152) comprises a second contact surface (209), and the second contact surface (209) extends while being inclined away from the central axis of the support disk (102) in a direction from the distal end of the side wall (151) to the support disk (102). The fastener according to claim 1.

5. There is a gap in the axial direction of the support disk (102) between the distal end of the extension portion (152) and the second side (122) of the support disk (102). The fastener according to claim 1.

6. In the axial direction of the support disk (102), the height of the extension portion (152) is not less than 1 / 3 of the height of the side wall (151). The fastener according to claim 1.

7. The fastener according to claim 1, wherein the extension portion (152) has a thickness smaller than that of the side wall (151).

8. The connecting portion (130) includes a locking portion (160). The locking portion (160) includes a pair of first side portions (161, 162) arranged to face each other, and a pair of second side portions (163, 164) arranged to face each other. The distance between the outer sides of the pair of first side portions (161, 162) is larger than the distance between the outer sides of the pair of second side portions (163, 164). Each of the pair of first side portions (161, 162) has an inclined surface (168, 169) facing the support disk (102). The fastener is configured to be rotatable within the first component and the second component such that the inclined surfaces (168, 169) abut against the surface of the component to be connected so as to clamp the first component and the second component between the support disk (102) and the inclined surfaces (168, 169). The fastener according to claim 1.

9. The connecting portion (130) further includes a pair of holding arms (171, 172). The pair of holding arms (171, 172) are arranged outside the pair of second side portions (163, 164). The proximal ends of the pair of holding arms (171, 172) are connected to the support disk (102). The distal ends of the pair of holding arms (171, 172) can bend toward the locking portion (160). The pair of holding arms (171, 172) are provided with first recesses (191, 193) and a limiting section arranged in the axial direction of the support disk (102) on the outside thereof. The fastener can hold the connection fitting portion of the first component within the first recesses (191, 193), and is movable with respect to the first component when an external force is applied to the connecting portion (130) such that the connection fitting portion of the first component enters the limiting section. The fastener according to claim 8.

10. The fastener is configured such that the fastener can be inserted into the opening of the first component in a first direction, and when the fastener holds the connection fitting portion of the first component in the first recess (191, 193), a distal end of the connection portion (130) extends beyond the opening of the first component in the first direction, and the connection portion (130) reaches a pre-assembled position with respect to the first component. The fastener according to claim 9.

11. When an external force is applied to the connection portion (130), the connection portion (130) moves away from the pre-assembled position with respect to the first component, and the connection fitting portion of the first component can enter the restriction section. As a result, the distal end of the connection portion (130) does not extend beyond the opening of the first component in the first direction. After the external force applied to the connection portion (130) is removed, the connection portion (130) can return to the pre-assembled position, and the restriction section includes a second recess. The fastener according to claim 10.

12. The fastener according to claim 1, further comprising an operation portion (180), wherein the operation portion (180) is connected to the second side (122) of the support disk (102) and surrounded by the sealing portion (150), and the operation portion (180) has an outer shape and / or recess formed to prevent rotation, thereby enabling cooperation with a screwdriver tool.

Images