Clamp for drain hole

Abstract

The invention provides a clip for a drain hole, which can reduce noise transmitted to the interior of a vehicle compartment through the drain hole and can continuously maintain drainage performance. A drainage channel extending in the vertical direction is arranged on a drainage part mounted on a clip of a drainage hole formed in a front side door, an expansion part is arranged on a part of the drainage channel, and the bottom surface of the expansion part is inclined downwards towards a discharge port of the drainage channel. As a result, it is possible to cause water flowing from the drain hole to the clip to flow downward in the vertical direction, and it is possible to suppress or eliminate the accumulation of dust or soil in the drain channel, and to maintain drainage during use. In addition, the function of an expansion type silencer can be added to the drainage channel, and noise transmitted to the interior of the vehicle through the drainage hole can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a drain hole clip. In particular, the present application relates to an improvement of a drain passage in a drain hole clip. BACKGROUND

[0002] In the past, a drain hole for draining rainwater or the like that enters an interior space of a door (a space between an outer panel and an inner panel of the door) has been provided on the door of a vehicle. Also, a drain hole clip (hereinafter, sometimes simply referred to as a clip) that is installed in the drain hole is disclosed in Patent Document 1.

[0003] The clip disclosed in this Patent Document 1 is configured to have a claw portion that is engaged with the drain hole of the door, a hollow main body portion that covers the drain hole, and a drain portion that is formed in a lower portion of both end portions in the vehicle front-rear direction of the main body portion. That is, water that flows out from the drain hole of the door is collected into the main body portion, and after the water flows out in the vehicle front-rear direction within the main body portion, the water is drained from the drain portion. By installing this clip in the drain hole, foreign matter that is rolled up when the vehicle is running is prevented from entering the interior space of the door from the drain hole, and noise that is transmitted toward the vehicle interior through the drain hole is reduced.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2014-84958 SUMMARY However, in the clip disclosed in Patent Document 1, since the drain passage that is provided in the main body portion extends in the horizontal direction, in the case where dust or mud enters the drain passage, the dust or mud cannot be easily drained, and there is a possibility that the dust or mud accumulates in the drain passage. Therefore, it is necessary to maintain the drainability during use.

[0005] In addition, the same problem occurs in the case where a clip is installed in a drain hole for draining rainwater or the like in other vehicle body structural members, not limited to the door of a vehicle.

[0006] The present application was achieved in view of this aspect, and an object thereof is to provide a drain hole clip that is capable of reducing noise that is transmitted toward the vehicle interior through a drain hole, while being capable of continuously maintaining drainability.

[0007] The solution of the present application for achieving the object is premised on a drain hole clip to be installed in a drain hole formed in a hollow vehicle body structural member. Also, the drain hole clip is provided with a locking portion to be locked to an opening edge portion of the drain hole in a state of being inserted into the drain hole, and a main body portion to be formed in a unit with the locking portion and cover the outside of the vehicle body structural member including the drain hole. Also, it is characterized in that the main body portion is provided with a drain portion for draining water flowing out from the drain hole, the drain portion is provided with a drain passage extending in a vertical direction, an expansion portion expanding a space in a horizontal direction at a part of the drain passage, and a drain outlet opening downward at a lower end portion of the drain passage.

[0008] According to this particular matter, water flowing out from the drain hole of the vehicle body structural member to the drain hole clip flows out in a vertical direction downward along the drain passage of the drain hole clip, and is drained from the drain outlet which is the lower end portion of the drain passage. Therefore, even in the case where dust or soil enters the drain passage, it is possible to easily drain the dust or soil by the self-weight of the dust or soil or the water flowing downward, so that it is possible to suppress or eliminate the accumulation in the drain passage. As a result, it is possible to maintain the drainability at the time of use. Also, since the expansion portion is provided at a part of the drain passage, it is possible to add a function as an expansion type silencer to the drain passage, and it is possible to reduce the noise transmitted toward the vehicle interior via the drain hole.

[0009] Also, the bottom surface of the expansion portion is inclined downward toward the drain outlet.

[0010] In the case where the bottom surface of the expansion portion is provided as a horizontal plane, it is possible that dust or soil is accumulated on the horizontal plane, but in the present solution, the bottom surface of the expansion portion is inclined downward toward the drain outlet, so that it is possible to make the dust or soil flow toward the drain outlet, so that it is possible to suppress the accumulation of the dust or soil on the bottom surface and to drain water.

[0011] More specifically, the drain portion is provided with a contact portion to be in surface contact with the outer surface of the vehicle body structural member in a state where the drain hole clip is installed in the drain hole. Also, the drain passage is constituted by a recess portion recessed from the surface of the drain portion on the vehicle body structural member side, and constitutes a space extending in a vertical direction between the outer surface of the vehicle body structural member in a state where the drain hole clip is installed in the drain hole and the contact portion is in surface contact with the outer surface of the vehicle body structural member.

[0012] Thus, the drainage channel formed by the recess and the outer surface of the vehicle body structural component create a space for water drainage. By removing the drain hole clip from the vehicle body structural component, the drainage channel of the drain hole clip can be made an open space (a space open on the side of the vehicle body structural component in the drainage section). Therefore, even if foreign objects accumulate in the drainage channel, they can be easily removed by removing the drain hole clip from the vehicle body structural component.

[0013] Furthermore, the vehicle body structural component is a side door consisting of an outer door panel and an inner door panel, and the drainage hole is installed with a clip in the drainage hole formed on the lower part of the inner door panel.

[0014] Therefore, in addition to the aforementioned effects, when the vehicle is in motion, the airflow passing outside the exhaust outlet and the suction effect caused by the negative pressure generated in the drainage channel may further improve the drainage performance from the drainage channel.

[0015] Invention Effects In this invention, the drainage section of the drain clamp, which is installed on a drain hole formed in a vehicle body structural component, has a drainage channel extending in the vertical direction, and an extension is provided in a portion of this drainage channel. This allows water flowing from the drain hole in the vehicle body structural component into the drain clamp to flow downwards in the vertical direction, suppressing or eliminating the accumulation of dust or dirt in the drainage channel and maintaining drainage performance during use. Furthermore, the drainage channel can be augmented as an expansion-type muffler, reducing noise transmitted into the vehicle interior via the drain hole. Attached Figure Description

[0016] Figure 1 It is a three-dimensional view showing the part of the vehicle with clips installed on the front door.

[0017] Figure 2 This is a longitudinal sectional view of the clamp installation position with the door closed.

[0018] Figure 3 middle, Figure 3 (a) is an enlarged view showing the part on the front door where the clip is installed. Figure 3 (b) is a three-dimensional view of the clip viewed from the back side. Figure 3 (c) is a diagram used to illustrate the principle of an expansion muffler.

[0019] Figure 4 middle, Figure 4 (a) is a top view of the drain hole as seen from the inside of the front door. Figure 4 (b) is a top view of the front door from the inside, showing the clip installed in the drain hole.

[0020] Figure 5 It is based on Figure 3 (c) An example of changing the specifications to calculate transmission loss.

[0021] Figure 6 It is a variation of the clip. Figure 6 (a) is with Figure 3 (a) equivalent diagram, Figure 6 (b) is with Figure 3 (b) equivalent diagram, Figure 6 (c) is a diagram of the clip viewed from above. Detailed Implementation

[0022] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. This embodiment describes the application of the present invention to a clip (drainage hole clip) installed on a drainage hole in the front door of a vehicle (a hollow body structure component as described in the present invention). Furthermore, the present invention can also be applied as a clip for a drainage hole installed on a rear door. The basic functions of the clip include draining rainwater and other contaminants entering the interior space of the door to the outside of the vehicle through the drainage hole, preventing foreign objects such as dust or water from entering the interior space of the door from the outside of the vehicle, and reducing noise transmitted to the interior of the vehicle through the drainage hole.

[0023] -Structure of the front door- Figure 1 This is a perspective view showing the portion of the front door 1 of the vehicle according to this embodiment in which the clip 2 is installed. Furthermore, Figure 2 This is a longitudinal sectional view of the clamp installation position with the door closed. Figure 1 (A sectional view at the position corresponding to line II-II in the diagram).

[0024] As shown in these figures, the front door 1 has an outer steel plate panel 11 located on the outer side in the vehicle width direction when the door is closed, an inner steel plate panel 12 located on the inner side in the vehicle width direction when the door is closed, and an inner lining panel, i.e., a door trim panel 13, installed on the inner door panel 12.

[0025] When the front door 1 is closed, a sill beam 3 is provided on the lower side, forming the lower frame of the door opening and extending along the front-rear direction of the vehicle. The sill beam 3 is composed of an outer sill beam 31 and an inner sill beam 32, and is formed by a closed cross-section structure through the flange of the outer sill beam 31 and the flange of the inner sill beam 32. The outer sill beam 31 is formed along the lower end of the inner door panel 12. Furthermore, a roughly U-shaped anti-scratch plate 4, molded from a rigid synthetic resin or the like, is provided on the upper part of the sill beam 3 to cover the flange.

[0026] The door trim panel 13 is the inner lining panel of the front door 1. It is shaped to accommodate mechanisms (not shown) installed on the outer door panel 11 or inner door panel 12, and is installed on the inner door panel 12. The door trim panel 13 has an inner surface opposite to the inner door panel 12 and an outer surface that serves as the design surface. A tubular sealing member 14 is installed on the outer surface of the anti-friction plate 4 to seal the space between the anti-friction plate 4 and the door trim panel 13. This sealing member 14 is molded from an elastic material such as urethane rubber. Furthermore, a sealing member 19 made of an elastic material is also provided between the inner door panel 12 and the door trim panel 13.

[0027] The inner door panel 12 is a plate-shaped component that has undergone deep drawing. Its two ends (not shown) in the front-rear direction of the vehicle are integrated with the outer door panel 11 (integrated by so-called edge rolling).

[0028] The inner door panel 12 has the following shape: a panel body portion 12a, which extends approximately orthogonally to the vehicle width direction when the door is closed; a horizontal portion 12b, which extends horizontally by a predetermined dimension from the lower end of the panel body portion 12a toward the outer door panel 11; a vertical portion 12c, which extends downward by a predetermined dimension from the outer end of the horizontal portion 12b; an inclined portion 12d, which extends obliquely downward by a predetermined dimension from the lower end of the vertical portion 12c toward the outer door panel 11; and an engaging portion 12e, which extends downward toward the outer door panel 11 from the outer end of the inclined portion 12d. The engaging portion 12e is integrated with the lower end of the outer door panel 11 in the vehicle vertical direction (integrated by a so-called rolled edge process). Thus, an internal space 17 for accommodating mechanisms such as window adjusters is provided between the outer door panel 11 and the inner door panel 12. In addition, a sealing member 18 is installed on the lower surface of the horizontal portion 12b of the inner door panel 12 to seal the inner door panel 12 and the door sill beam 3 when the door is closed.

[0029] A collection section 15 is provided at the lower part of the interior space 17 of the front door 1, which collects foreign objects such as dust or water that enter the interior space 17. In order to discharge the foreign objects collected in the collection section 15 to the outside of the vehicle, a drain hole 16 is formed at the lower end of the inner door panel 12. Specifically, the drain hole 16 is formed as a through hole on the inclined portion 12d of the inner door panel 12.

[0030] Figure 4 (a) is a top view of the drain hole 16 as seen from the inside of the front door 1 (above the inclined portion 12d of the inner door panel 12). Figure 4 As shown in (a), the drain hole 16 drains water from the inner door panel 12 along its thickness direction (vehicle width direction when the door is closed). Figure 4(a) The vertical direction is formed as an elongated oval along the length. As an example of the opening size of the drain hole 16, the length is 15 mm and the length is 7 mm. These dimensions are not limited to these.

[0031] Furthermore, a clip 2, a feature of this embodiment, is installed in the drain hole 16. The clip 2 will be described below.

[0032] -The structure of the clip- Figure 3 (a) is an enlarged view showing the portion of the front door 1 in which the clip 2 is installed. Figure 3 (b) is a perspective view of clip 2 from the back side (the side that abuts against the inner panel 12 of the door).

[0033] As shown in these figures, the clip 2 includes: a locking portion 21, which, when inserted into the drain hole 16 (in other words, when installed on the front door 1), locks against the opening edge of the drain hole 16; and a main body 22, which is integrally formed with the locking portion 21 and covers the outer side of the inner door panel 12 including the drain hole 16. Furthermore, the clip 2 is molded from a flexible material (such as rubber or synthetic resin).

[0034] For convenience, the width direction of clip 2 (the front-to-rear direction of the vehicle body when the door is closed and the clip is installed on the front door 1) will be referred to as the X direction (see reference). Figure 3 (b) The front side of the vehicle body in the longitudinal direction is called the X-direction front side, and the rear side of the vehicle body in the longitudinal direction is called the X-direction rear side. Furthermore, the horizontal direction orthogonal to the X-direction (the vehicle width direction when the door is closed, with the vehicle installed on the front door 1) is called the Y-direction. The side closer to the front door 1 when installed on the front door 1 is called the Y-direction door side, and the side farther from the front door 1 is called the Y-direction reverse door side. Furthermore, the vertical direction orthogonal to these X and Y directions is called the Z-direction. The upper side of the vertical direction is simply called the upper side, and the lower side of the vertical direction is simply called the lower side.

[0035] The main body 22 has a water receiving part 23 that covers the inclined part 12d of the inner door panel 12 from the bottom, and a drainage part 24 that is continuous with the bottom side of the water receiving part 23 and abuts against the engaging part 12e of the inner door panel 12.

[0036] The water receiving part 23 is the part that receives foreign objects such as dust or water that are collected in the collection part 15 in the interior space 17 of the inner panel 12 of the door when they are discharged from the drain hole 16, and is formed in a general shape of a mortar.

[0037] More specifically, the water-receiving portion 23 is formed in a shape that expands outwards towards the top, and its upper edge is designed to follow the shape of the lower surface of the inclined portion 12d of the inner door panel 12. Furthermore, the periphery of the upper edge of the water-receiving portion 23 is thinned, making it more easily elastically deformable under external force. Therefore, when the upper edge of the water-receiving portion 23 is pressed against the lower surface of the inclined portion 12d of the inner door panel 12, the shape of the upper edge of the water-receiving portion 23 easily conforms to the shape of the lower surface of the inclined portion 12d of the inner door panel 12. Thus, as... Figure 3 As shown in (a), with the clip 2 installed on the front door 1, the upper edge of the water-receiving part 23 is in contact with the lower surface of the inclined part 12d, so that no gap is formed between the upper edge of the water-receiving part 23 and the lower surface of the inclined part 12d. This prevents foreign objects such as dust or water discharged from the drain hole 16 from leaking out between the upper edge of the water-receiving part 23 and the lower surface of the inclined part 12d.

[0038] Furthermore, the portion of the central part in the X direction of the water receiving part 23 near the door side in the Y direction is the lowest point on the upper surface of the water receiving part 23, and a notch 23a, which is quadrilateral in shape when viewed from above, is provided in this portion. This notch 23a forms the upper end of the drainage channel 25, which will be described later, and has the function of allowing foreign objects such as dust or water discharged from the drain hole 16 and received by the water receiving part 23 to flow into the interior of the drainage channel 25.

[0039] The locking portion 21 is integrally formed in the central portion (both the central portion in the X direction and the central portion in the Y direction) of the upper surface of the water receiving portion 23. Specifically, it is positioned on the upper surface of the water receiving portion 23 further from the Y-direction opposite door side than the notch 23a. Locking claws 21a, 21a are provided on the longitudinal wall surfaces of the locking portion 21 on the X-direction front side and the X-direction rear side. The distance between the position of the X-direction front end of the locking claw 21a located on the X-direction front side and the position of the X-direction rear end of the locking claw 21a located on the X-direction rear side (when viewed from the inside of the front door 1) is... Figure 4 (b) The dimension T1 of the state in which the clip 2 is installed in the drain hole 16 is set to be greater than the opening size in the X direction of the drain hole 16. Figure 4 (a) Dimension H1) is slightly larger.

[0040] Therefore, when the locking part 21 is inserted into the drain hole 16 from the lower side of the inclined part 12d of the inner door panel 12, each locking claw 21a, 21a is locked at the opening edge of the drain hole 16 by passing over the opening edge of the drain hole 16, and the clip 2 is installed on the front door 1. Figure 4 (b) is a top view of the state in which the clip 2 is installed in the drain hole 16, as seen from the inside of the front door 1 (the upper side of the inclined portion 12d of the inner door panel 12).

[0041] As described above, the clip 2 is formed of an elastic material. Therefore, by pulling the clip 2 downward from its position on the front door 1, the locking claws 21a, 21a pass over the opening edge of the drain hole 16, thereby allowing the clip 2 to be removed from the front door 1. Furthermore, in this embodiment, a structure is provided that allows the clip 2 to be attached to and detached from the front door 1; however, the invention is not limited to this, and also includes a structure in which the clip 2 is fixed in a way that prevents it from being attached to and detached from the front door 1.

[0042] The drainage section 24 is continuous with the lower side of the water receiving section 23 and abuts against the engaging portion 12e of the front door 1. Specifically, in the drainage section 24, the surface that abuts against the engaging portion 12e of the front door 1 (located on the door side in the Y direction, extending in a direction orthogonal to the Y direction) becomes a contact portion 26 made of a flat surface. A drainage channel 25 is provided in the center of the contact portion 26 in the X direction for allowing foreign objects such as dust or water received by the water receiving section 23 to flow downward and be discharged.

[0043] The drainage channel 25 is formed by a recess in the Y-direction door-side surface of the drainage section 24. Furthermore, the drainage channel 25 includes: an upper drainage channel 25a, continuous with the notch 23a on the upper side; a lower drainage channel 25c, continuous with the outlet 25b opening at the lower end of the drainage section 24 on the lower side; and extensions 25d and 25d, located between the upper drainage channels 25a and the lower drainage channel 25c, and formed by spaces extending forward and backward in the X-direction, respectively.

[0044] The shapes of the upper drainage channel 25a and the lower drainage channel 25c (the shapes of the recesses on the door side surface in the Y direction of the drainage section 24) are the same as each other. Alternatively, the shapes of these upper drainage channels 25a and lower drainage channels 25c may be different from each other.

[0045] Furthermore, the expansion dimension in the X direction of each extension portion 25d, 25d (the dimension by which it expands outward in the X direction compared to the dimensions in the X direction of the upper drainage channel 25a and the lower drainage channel 25c) is the same for each other and is set to be slightly larger than the dimensions in the X direction of each of the upper drainage channel 25a and the lower drainage channel 25c. However, this is not a limitation; the expansion dimensions in the X direction of each extension portion 25d, 25d may be different for each other, and the expansion dimensions in the X direction of each extension portion 25d, 25d may be set to be smaller than the dimensions in the X direction of each of the upper drainage channel 25a and the lower drainage channel 25c.

[0046] With the drainage channel 25 formed in this shape, if the clip 2 is installed in the drainage hole 16 and is in a state of contact 26 abutting (face contact) with the engaging part 12e of the front door 1, then between these drainage channels 25 and the engaging part 12e of the front door 1, a space is formed that is consistent with the concave shape of the upper drainage channel 25a, the lower drainage channel 25c and each extension 25d, 25d, and extends in the vertical direction.

[0047] Thus, by providing extensions 25d and 25d in the drainage channel 25, the drainage channel 25 can be given the function of an expanded muffler, which can reduce the noise transmitted to the interior of the vehicle through the drainage hole 16.

[0048] Here, we will briefly explain the principle of the expansion type muffler. Figure 3 (c) is a diagram illustrating the principle of an expansion-type silencer. As is well known, an expansion-type silencer prevents the propagation of sound waves by utilizing the reflection of sound wave energy in the discontinuities of the cross-section of an expansion piping system. Figure 3 In (c), the inner diameter of the pipe is denoted as S1, the inner diameter of the extension is denoted as S2, and the length of the extension is denoted as L2. In the drainage channel 25 of this embodiment, the X-direction dimension of the upper drainage channel 25a and the lower drainage channel 25c is equivalent to the dimension S1, the X-direction dimension of the extensions 25d and 25d is equivalent to the dimension S2, and the Z-direction dimension of the extensions 25d and 25d is equivalent to the dimension L2.

[0049] Furthermore, the bottom surfaces of each extension portion 25d, 25d are inclined downward toward the outlet 25b. That is, the bottom surface of the extension portion 25d located at the front in the X direction is inclined downward toward the rear in the X direction at a predetermined angle. Similarly, the bottom surface of the extension portion 25d located at the rear in the X direction is inclined downward toward the front in the X direction at a predetermined angle. These predetermined angles can be arbitrarily set. As an example, the predetermined angle is set to 20°. In addition, in this embodiment, the top surfaces of each extension portion 25d, 25d are also inclined downward toward the center in the X direction in the same way as the bottom surfaces.

[0050] -The function of the clip- Next, the function of the clip 2, configured as described above, installed in the drain hole 16 will be explained. When rainwater (hereinafter simply referred to as water) enters the interior of the front door 1, this water (e.g., water also containing dust, etc.) is collected in the collection portion 15 and discharged downwards from the drain hole 16. This discharged water is received by the water-receiving portion 23 of the clip 2, flows on the upper surface of the water-receiving portion 23, and is guided to the notch 23a. The water reaching the notch 23a flows into the drain channel 25, flows from the upper drain channel 25a to the lower drain channel 25c, and is discharged to the outside from the outlet 25b.

[0051] Furthermore, the drain hole 16 of the front door 1 is covered by the clip 2, thus preventing foreign objects such as dust or water from entering the interior space of the front door 1 from the outside of the vehicle through the drain hole 16. Also, by providing the extension 25d, the drain channel 25 functions as an expanded muffler, thereby reducing noise transmitted into the vehicle interior through the drain hole 16. For example, it can suppress the transmission of noise such as load noise during driving into the vehicle interior through the drain hole 16.

[0052] -Effects of the Implementation Method- As explained above, in this embodiment, the drainage section 24 installed on the clip 2, which is mounted on the drainage hole 16 formed in the front door 1, has a drainage channel 25 extending in the vertical direction. An extension section 25d, 25d is provided on a portion of this drainage channel 25, and the bottom surfaces 25e, 25e of the extension sections 25d, 25d are inclined downwards toward the outlet 25b of the drainage channel 25. This allows water flowing from the drainage hole 16 of the front door 1 to the clip 2 to flow downwards in the vertical direction, suppressing or eliminating the accumulation of dust or mud in the drainage channel 25 and maintaining drainage performance during use. Furthermore, the drainage channel 25 can be augmented as an expansion-type muffler, reducing noise transmitted into the vehicle interior via the drainage hole 16.

[0053] The inventors of this invention conducted theoretical calculations to confirm the noise reduction effect produced by adding an expansion-type silencer function to the drainage channel 25. In this experiment, the transmission loss of each frequency band relative to the center frequency of the noise was determined for each of the two types of clips 2 with different dimensions in the X direction in the expansion portions 25d, 25d.

[0054] Figure 5 This indicates the result of the calculation. Figure 5 Compared to the sections represented by dashed lines, the cross-sectional area in the X direction of the extensions 25d and 25d is set to approximately twice the size. Other dimensions (the X-direction dimensions of the upper drainage channel 25 and the lower drainage channel 25c, and the Z-direction dimensions of the extensions 25d and 25d) are set to be the same. Figure 5 As shown, a large transmission loss can be obtained in the relatively high frequency band, and it can be confirmed that the noise transmitted to the vehicle interior through the drain hole 16 is greatly reduced. Furthermore, when the cross-sectional area in the X direction of the extension 25d is large, a large transmission loss can be obtained, and it can be confirmed that the noise transmitted to the vehicle interior is greatly reduced.

[0055] Furthermore, as another effect, in this embodiment, the drainage channel 25 formed by the recess and the outer surface of the front door 1 form a space for draining water. By removing the clip 2 from the front door 1, the drainage channel 25 of the clip 2 can be made into an open space (a space open on the surface of the front door 1 side in the drainage section 24). Therefore, if foreign objects accumulate in the drainage channel 25, the foreign objects can be easily removed by removing the clip 2 from the front door 1.

[0056] Furthermore, when the vehicle is in motion, the airflow passes over the outside of the outlet 25b and is drawn out by the negative pressure generated in the drainage channel 25, which further improves the drainage performance of the drainage channel 25.

[0057] -Variations- Next, a modified example will be described. In this modified example, the structure of the drainage section 24 of the clip 2 differs from that of the embodiment described above. The other structures are largely the same as those in the embodiment described above; therefore, the differences from the embodiment described above will be explained here.

[0058] Figure 6 This refers to clip 2 in this variation. Figure 6 (a) is Figure 3 (a) Corresponding diagram (enlarged view of the part where clip 2 is installed in front door 1), Figure 6 (b) is Figure 3 (b) Corresponding diagram (a three-dimensional view of clip 2 viewed from the back side), Figure 6 (c) is a diagram showing the clip 2 as viewed from above. Figure 6 In this document, the parts that are the same as those in the aforementioned embodiments are marked with the same symbols, and their descriptions are omitted.

[0059] As shown in these figures, the drain section 24 of the clip 2 in this variation is constructed of a rectangular box shape, the interior of which forms a drain channel 25. An opening formed in the upper part (upper surface of the box shape) of the drain channel 25 is called an upper drain channel 25a, and an opening formed in the lower part (lower surface of the box shape) of the drain channel 25 is called a lower drain channel 25c and a discharge outlet 25b. The openings of the upper drain channel 25a and the lower drain channel 25c are circular, and the centerlines of these upper drain channels 25a and the lower drain channel 25c are located on the same straight line extending in the vertical direction. That is, the upper drain channel 25a and the lower drain channel 25c are opposite each other in the vertical direction.

[0060] Furthermore, since the X-direction dimension of the drainage section 24 is relatively large, its interior functions as an expansion-type muffler, thereby reducing the noise transmitted into the vehicle interior through the drainage hole 16.

[0061] The other structures and functions are the same as those in the aforementioned implementation method.

[0062] In this variation, the same effect as the aforementioned implementation method can be achieved.

[0063] Other implementation methods Furthermore, the present invention is not limited to the described embodiments and variations, and is open to patent applications. The scope and all variations or applications included within the scope equal to this scope.

[0064] For example, in the described embodiments and variations, the application of the present invention to a clip 2 installed in a drain hole 16 of the front door 1 of a vehicle has been explained. The present invention is not limited thereto; it can also be applied to clips installed in drain holes of the rear door or trunk door of a vehicle. Furthermore, it can also be applied to clips installed on other body structural components (body structural components with drain holes) besides doors.

[0065] Furthermore, in the described embodiment and its variations, the case where a drain hole 16 is provided only at one location on the front door 1 of the vehicle, and a clip 2 is installed in the drain hole 16, has been explained. The present invention is not limited to this, and can also be applied to cases where drain holes are provided at multiple locations on the front door 1 of the vehicle, and a clip is installed in each drain hole.

[0066] Furthermore, in the aforementioned embodiment and the aforementioned modified example, the mounting position of the clip 2 is set to the inclined portion 12d of the front door 1, but the mounting position is not limited to the inclined portion 12d as long as it is the lower part of the front door 1.

[0067] Industrial availability The present invention is applicable to a drain hole clip installed in a drain hole formed in the side door of a vehicle.

[0068] Symbol Explanation 1-Front door (body structure component), 11-Outer door panel, 12-Inner door panel, 16-Drain hole, 2-Clamp (clamp for drain hole), 21-Locking part, 22-Main body part, 24-Draining part, 25-Draining channel, 25a-Upper drainage channel, 25b-Outlet, 25c-Lower drainage channel, 25d-Extension part, 25e-Bottom surface, 26-Contact part.

Claims

1. A drain hole clip which is attached to a drain hole formed in a hollow vehicle body structural member, characterized by comprising: a locking portion which is locked to an opening edge portion of the drain hole in a state of being inserted into the drain hole; and a main body portion which is formed integrally with the locking portion and covers an outer side of the vehicle body structural member including the drain hole, the main body portion having a drain portion for draining water flowing out from the drain hole, the drain portion having a drain passage extending in a vertical direction, an expansion portion which is a part of the drain passage and in which a space expands in a horizontal direction, and a drain outlet which is a lower end portion of the drain passage and which is open downward.

2. The drain hole clip according to claim 1, characterized in that a bottom surface of the expansion portion is inclined downward toward the drain outlet.

3. The drain hole clip according to claim 1 or 2, characterized in that the drain portion has a contact portion which is in surface contact with an outer surface of the vehicle body structural member in a state in which the drain hole clip is attached to the drain hole, the drain passage is constituted by a recess portion which is recessed from a surface of the drain portion on the vehicle body structural member side, and in a state in which the drain hole clip is attached to the drain hole with the contact portion in surface contact with the outer surface of the vehicle body structural member, a space extending in the vertical direction between the outer surface of the vehicle body structural member and the contact portion is constituted.

4. The drain hole clip according to claim 1 or 2, characterized in that the vehicle body structural member is a side door which includes an outer door panel and an inner door panel, and the drain hole clip is attached to the drain hole formed in a lower portion of the inner door panel. ​ ​ ​ ​ ​ ​ ​ ​ ​

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