Weather strip

The weatherstrip's thick-walled extensions in the holding portion address adhesion failure issues by increasing rigidity, enhancing secure attachment and sealing.

JP2025110246APending Publication Date: 2025-07-28NISHIKAWA RUBBER CO LTD
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Patent Information

Application Number
JP2024004073
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-15
Publication Date
2025-07-28

AI Technical Summary

Technical Problem

Existing weatherstrips face issues with adhesion failure at clip insertion holes due to low rigidity in thin-walled areas, making them prone to bending and poor adhesion.

Method used

A weatherstrip design featuring a holding portion with a thin-walled insertion hole and thick-walled extensions on both ends, which increases rigidity and prevents bending, thereby reducing adhesion failure.

Benefits of technology

The design enhances rigidity, reducing the likelihood of adhesion failure and positional deviation of slit holes, ensuring secure attachment and sealing.

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Abstract

To decrease risk of occurrence of a bonding failure at the time when a slit hole is bonded.SOLUTION: A weather strip (10) to be attached to a vehicle has a holding portion (30) having: a thin portion (31) where an insertion hole (33) through which a clip (60) is to be inserted is formed; and a thick portion (32) that is formed on at least one of both end sides of the thin portion (31) in a longitudinal direction of a base portion (20) so as to be thicker than the thin portion (31) and so as to extend in a lateral direction of the base portion (20).SELECTED DRAWING: Figure 3
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Description

Technical Field

[0001] The present invention relates to a weatherstrip.

Background Art

[0002] A gap formed between an opening formed in a vehicle body and a vehicle door that closes the opening is sealed by a weatherstrip. The weatherstrip is attached to the vehicle body or the vehicle door by, for example, a clip or the like.

[0003] In the weatherstrip of Patent Document 1, a clip insertion hole through which a clip is inserted is formed in a base portion of a molded portion. A slit for extracting a mold used for forming a hollow seal portion is formed in the base portion so as to bypass the clip insertion hole.

[0004] Further, in the weatherstrip of Patent Document 2, a mold part through hole into which a clip is inserted is formed in a molded part connected to an extrusion molded part.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] By the way, a general-purpose clip used for attaching a weatherstrip to a vehicle body or a vehicle door has a distance between the head of the general-purpose clip and the locking portion of the general-purpose clip set to a predetermined distance. Therefore, when using a general-purpose clip, it is necessary to make the thickness of the weatherstrip at the insertion portion through which the clip is inserted thinner than the thickness of the other portions of the weatherstrip.

[0007] In the weather strip of Patent Document 1, a slit for removing a mold is adhered with an adhesive to close the slit. However, when the vicinity of the clip insertion hole is formed to be thin-walled, the rigidity is low and it is easily bent. Therefore, there is a problem that poor adhesion of the slit hole is likely to occur in the vicinity of the clip insertion hole.

[0008] In the weather strip of Patent Document 2, a thick-walled portion is formed so as to surround the periphery of a thin-walled portion formed in the vicinity of a mold portion through-hole through which a clip is inserted. Therefore, the rigidity in the vicinity of the mold portion through-hole can be increased.

[0009] However, the through-hole formed in the weather strip of Patent Document 2 is formed in a mold forming portion in which a slit hole is not formed. The weather strip of Patent Document 2 has a configuration completely different from the configuration of the weather strip of Patent Document 1. Therefore, it is difficult to apply the technology of Patent Document 2 to the technology of Patent Document 1.

[0010] One aspect of the present invention aims to reduce the risk of poor adhesion when adhering a slit hole.

Means for Solving the Problems

[0011] In order to solve the above problems, a weather strip according to an embodiment of the present invention is a weather strip attached to a vehicle, and includes a base portion attached to an attachment portion of the vehicle, and a hollow seal portion formed integrally with the base portion and having a hollow shape. The base portion is formed with a holding portion for holding an attachment member for attaching the base portion to the attachment portion, and a slit hole extending in the longitudinal direction of the base portion. A crank portion extending along the short-side direction of the base portion is formed in the slit hole so as to avoid the holding portion. The holding portion is formed with a thin-walled portion having an insertion hole through which the attachment member is inserted, and a thick-walled portion that is thicker than the thin-walled portion and extends in the short-side direction of the base portion on at least one of both ends of the thin-walled portion in the longitudinal direction of the base portion.

Advantages of the Invention

[0012] According to one aspect of the present invention, when adhering a slit hole, the risk of adhesion failure can be reduced.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0014] 〔Embodiment〕 <Example of Attaching a Weatherstrip> Referring to FIG. 1, the structure around the door opening 2 in the automobile 1 to which the weatherstrip 10 according to an embodiment of the present invention is attached will be described. The automobile 1 is an example of a vehicle. As shown in FIG. 1(a), the automobile 1 is provided with a front door 3. In addition, a door opening 2 is formed at a location on the body of the automobile 1 where the front door 3 is integrated with the body by a hinge (not shown) when the door is closed. The front door 3 is an automobile part that can be opened and closed to close the door opening 2.

[0015] Further, a weatherstrip 10 is attached in a closed loop shape over the entire periphery of the door peripheral portion (peripheral portion) 3a of the front door 3 (see (b) of FIG. 1). The weatherstrip 10 is an automotive part for sealing between the periphery 2a of the door opening 2 and the door peripheral portion 3a. When the weatherstrip 10 attached to the door peripheral portion 3a elastically contacts the periphery 2a of the door opening 2, the space between the periphery 2a of the door opening 2 and the door peripheral portion 3a is sealed. Note that the weatherstrip 10 may be attached to the periphery 2a of the door opening 2.

[0016] The weatherstrip 10 has an extrusion molding portion 101 and molded portions 102 and 103. The weatherstrip 10 may be formed as an integrated component of at least one type of extrusion molding portion and at least one type of molded portion. The weatherstrip 10 is formed of sponge-like rubber. As the rubber material, for example, EPDM (ethylene-propylene-diene rubber) can be used. However, as the molding material, a thermoplastic elastomer (olefin-based or styrene-based thermoplastic elastomer), other rubber materials, or other elastic materials having elasticity similar to that of rubber materials may be used. Note that different materials may be used for each part of the weatherstrip 10. Also, it may be partially or entirely composed of a solid material.

[0017] Note that the weatherstrip 10 is not limited to sealing between the periphery 2a of the door opening 2 of the vehicle 1 and the door peripheral portion 3a. The weatherstrip 10 may be any component that seals between an opening formed in a vehicle and a cover that closes the opening. For example, it may seal between the engine room and the bonnet.

[0018] <Main Component Configuration of Weatherstrip> Referring to FIG. 2, an overview of the main part configuration of the weatherstrip 10 according to an embodiment of the present invention will be described. When describing the main part configuration of the weatherstrip 10, for the convenience of explanation, three coordinate axes in the X (X1 - X2) direction, Y (Y1 - Y2) direction, and Z (Z1 - Z2) direction as shown in FIG. 2 and the like are defined. The X direction is the longitudinal direction of the base 20 of the weatherstrip 10, the Y direction is the lateral direction of the base 20, and the Z direction is the thickness direction of the base 20. The Y1 direction is the direction from the end 21 side to the end 22 side of the base 20 in the Y direction, and the Y2 direction is the direction from the end 22 side to the end 21 side of the base 20 in the Y direction. The Z1 direction is the direction from the surface 301 side of the holding portion 30 of the base 20 to the surface 302 side opposite to the surface 301, and the Z2 direction is the direction from the surface 302 side to the surface 301 side.

[0019] As shown in FIG. 2, the weatherstrip 10 includes a base 20 and a hollow seal portion 50. The base 20 is attached to a mounting portion (not shown) of the door peripheral portion 3a by a clip 60. The clip 60 is an example of a mounting member for attaching the base 20 to the mounting portion of the door peripheral portion 3a. The clip 60 is a general-purpose clip for attaching the weatherstrip to a vehicle. The clip 60 has a head 61 (see FIG. 3), a shaft portion 62, and a locking portion 63.

[0020] The base 20 is formed with a base body 23, a holding portion 30 for holding the clip 60, and a slit hole 40 extending in the X direction. The base body 23 is the main part of the base 20. The slit hole 40 is a hole for taking out a mold for forming the hollow seal portion 50 when the molding portions 102, 103 of the weatherstrip 10 are molded. After the mold is taken out from the slit hole 40, the end faces of the slit hole 40 facing each other in the Y direction are adhered. Note that FIG. 2 shows the slit hole 40 in a non - adhered state. Details of the holding portion 30 and the slit hole 40 will be described later.

[0021] The hollow seal portion 50 has a hollow shape and is integrally formed with the base portion 20. The hollow seal portion 50 is a portion that elastically contacts the peripheral edge 2a of the door opening 2 in the process of closing the door.

[0022] Referring to FIGS. 3 to 6, the detailed configurations of the holding portion 30 and the slit hole 40 of the weatherstrip 10 according to an embodiment of the present invention will be described. In FIGS. 3 and 4, for ease of viewing the drawings, the illustration of the hollow seal portion 50 is omitted. The portions indicated by the hatching in FIGS. 3 and 4 correspond to the base portions of the hollow seal portion 50 connected to the base portion 20. Further, FIGS. 3 to 6 show the slit holes 40 in a non-adhered state.

[0023] As shown in FIG. 3, the holding portion 30 is formed so as to protrude from the end portion 21 side on the Y2 side of the base portion 20 toward the end portion 22 side on the Y1 side of the base portion 20. The holding portion 30 has a substantially trapezoidal shape when viewed from the Z direction. The Y2 side of the holding portion 30 is connected to the base portion of the hollow seal portion 50 located on the Y2 side. The holding portion 30 is formed with a thin portion 31 and a thick portion 32.

[0024] As shown in FIG. 4, an insertion hole 33 through which the clip 60 is inserted is formed in the thin portion 31. The insertion hole 33 is formed substantially at the center of the thin portion 31 in the X direction. By inserting the clip 60 through the insertion hole 33, the clip 60 is held by the holding portion 30. The end portion 311 on the Y2 side of the thin portion 31 is connected to the base portion of the hollow seal portion 50. The end portion 312 on the Y1 side of the thin portion 31 constitutes the straight portion 422 of the slit hole 40.

[0025] As shown in FIGS. 3 and 4, a plurality of thick portions 32 are formed in the holding portion 30, and are respectively formed on the end portion sides 313 and 314 of the thin portion 31 in the X direction. As shown in FIG. 6, the thick portion 32 is formed in the holding portion 30 so as to protrude toward the Z2 side.

[0026] More specifically, as shown in FIG. 3, the thick portion 32 located on the X1 side of the thin portion 31 is connected to the end portion 313 on the X1 side of the thin portion 31, and the thick portion 32 located on the X2 side of the thin portion 31 is connected to the end portion 314 on the X2 side of the thin portion 31. The end portion 313 of the thin portion 31 and the end portion 323 of the thick portion 32 located on the X1 side are at the same position in the X direction. Also, the end portion 314 of the thin portion 31 and the end portion 323 of the thick portion 32 located on the X2 side are at the same position in the X direction.

[0027] The thick portion 32 is formed adjacent to the crank portion 421 of the slit hole 40 extending along the Y direction so as to avoid the holding portion 30. In the X direction, the end portion 324 of the thick portion 32 located at the position farthest from the insertion hole 33 is located at the same position as the starting point P1 where the crank portion 421 starts to curve from the straight portion 41 in the Y1 direction. That is, in the X direction, the thick portion 32 is formed in the region where the thin portion 31 of the holding portion 30 is not formed.

[0028] Note that the thick portion 32 may be formed as one on only the X1 side or only the X2 side of the thin portion 31 in the X direction. Also, the thick portion 32 is not limited to being formed at the end portions 313 and 314 of the thin portion 31 in the X direction. For example, the thick portion 32 may be formed so as to be located between the end portion 313 of the thin portion 31 and the insertion hole 33 or between the end portion 314 of the thin portion 31 and the insertion hole 33 in the X direction. That is, the thin portion 31 may be formed so as to surround the periphery of the thick portion 32 extending from the root portion of the hollow seal portion 50. In this case, the end portion 313 of the thin portion 31 is located on the X1 side of the end portion 324 of the thick portion 32 on the X1 side, and the end portion 314 of the thin portion 31 is located on the X2 side of the end portion 324 of the thick portion 32 on the X2 side.

[0029] As shown in FIG. 3, the thick portion 32 is formed at a position where it does not interfere with the head portion 61 of the clip 60 held by the thin portion 31. That is, the end portion 323 on the X2 side of the thick portion 32 located on the X1 side of the thin portion 31 and the end portion 323 on the X1 side of the thick portion 32 located on the X2 side of the thin portion 31 are located at positions that do not overlap with the head portion 61 of the clip 60 held by the holding portion 30 when viewed from the Z direction.

[0030] As shown in FIGS. 3 and 4, the thick portion 32 extends in the Y direction. More specifically, the thick portion 32 extends in the Y1 direction from the base end portion 321 of the thick portion 32 that is connected to the root portion of the hollow seal portion 50. The thick portion 32 has a rib-like configuration. In the Y direction, the tip portion 322 of the thick portion 32 may be located on the Y1 side of the end portion 331 that is located on the most Y1 side of the insertion hole 33. The tip portion 322 is the end portion located on the most Y1 side in the Y direction. Note that the tip portion 322 may be located on the Y2 side of the end portion 331 of the insertion hole 33 in the Y direction.

[0031] Also, the thick portion 32 is located between the insertion hole 33 and the crank portion 421 of the slit hole 40 in the X direction and extends in a direction away from the insertion hole 33 from the end portions 313 and 314 of the thin portion 31. Specifically, the thick portion 32 located on the X1 side of the thin portion 31 extends in the X1 direction from the end portion 313. Also, the thick portion 32 located on the X2 side of the thin portion 31 extends in the X2 direction from the end portion 314. The surface of the thick portion 32 that constitutes the slit hole 40 and connects the end portion 324 and the tip portion 322 constitutes a part of the crank portion 421 and is curved so as to correspond to the shape of the crank portion 421.

[0032] As shown in FIG. 4, the width W1 of the base end portion 321 is wider than the width W2 of the tip end portion 322. Here, in this specification, the width of the thick portion 32 means the width in the X direction. More specifically, the width of the thick portion 32 gradually increases from the Y1 side toward the Y2 side. Note that the width of the thick portion 32 is not limited to such a configuration. For example, the thick portion 32 may be L-shaped, with only the width W1 of the base end portion 321 widened and the widths of the other portions being the same as the width W2 of the tip end portion 322. Further, the thick portion 32 may be configured to extend only in the Y direction and may not extend in the direction away from the insertion hole 33. That is, the widths of the base end portion 321 and the tip end portion 322 of the thick portion 32 may be the same. For example, the width of the thick portion 32 may be substantially uniform in the Y direction, such as in an I shape.

[0033] As shown in FIG. 6, the thickness T2 of the thick portion 32 in the Z direction is thicker than the thickness T1 of the thin portion 31 in the Z direction. The thickness T1 is formed to be thinner than the distance between the head portion 61 and the locking portion 63 of the clip 60 in the Z direction. The thickness T2 of the thick portion 32 is the same as the thickness T3 of the base body 23 in the Z direction. An example of the thickness T1 is 2 mm, and an example of the thickness T2 is 4 mm. Note that the thickness T2 may be thinner than the thickness T3 or may be thicker than the thickness T3. Also, the thickness of the thick portion 32 on the X1 side in the Z direction and the thickness of the thick portion 32 on the X2 side in the Z direction may be different.

[0034] As shown in FIGS. 4 and 5, the thick portion 32 is formed on the surface 301 of the holding portion 30 on the same Z2 side as the surface where the hollow seal portion 50 of the base portion 20 is formed in the Z direction. Thereby, in the Z direction, no step is formed on the surface 302 on the Z1 side of the holding portion 30, which is located on the side opposite to the surface where the hollow seal portion 50 of the base portion 20 is formed, due to the thickness difference between the thick portion 32 and the thin portion 31. That is, the surface 302 can be made a flat surface. Thereby, it is possible to facilitate the attachment of the clip 60 to the holding portion 30. Further, since the surface 302 is a flat surface, it is also possible to facilitate the attachment of the weather strip 10 to the attachment portion on the door peripheral portion 3a. Note that the thick portion 32 may be formed on the surface opposite to the surface where the hollow seal portion 50 of the base portion 20 is formed.

[0035] As described above, since the thick portion 32 is formed in the holding portion 30, the rigidity of the holding portion 30 can be increased, and it becomes difficult for the holding portion 30 to bend. Thereby, when adhering the slit hole 40, the possibility of occurrence of adhesion failure can be reduced. For example, it is more effective for the weather strip 10 in which the slit hole 40 that is likely to cause adhesion failure is formed, such as (i) the slit hole 40 formed in the molding portion 103 (see FIG. 1) having a large curvature, or (ii) the slit hole 40 having a long length in the X direction. Further, since the thick portion 32 extends in the Y direction, it becomes difficult for the holding portion 30 to bend in the Y direction. Thereby, when adhering the slit hole 40, it is also possible to prevent the positional deviation of the slit hole 40 in the Y direction.

[0036] Further, the thick portion 32 extends not only in the Y direction but also in the X direction. Therefore, it is possible to make the holding portion 30 more difficult to bend. Thereby, when adhering the slit hole 40, the possibility of occurrence of adhesion failure can be further reduced.

[0037] Further, since the width of the thick portion 32 gradually increases from the Y1 side to the Y2 side, the ratio of the area of the thick portion 32 to the holding portion 30 can be increased. Therefore, the rigidity of the holding portion 30 can be further increased. Thereby, when adhering the slit hole 40, the possibility of occurrence of adhesion failure can be further reduced.

[0038] As shown in FIGS. 3 and 4, the slit hole 40 is formed with a straight portion 41 and a detour portion 42. The straight portion 41 is a linear portion extending in the X direction. The detour portion 42 is a portion formed so as to detour around the holding portion 30. The detour portion 42 is formed with a crank portion 421 and a straight portion 422.

[0039] The crank portion 421 extends along the Y direction so as to avoid the holding portion 30. More specifically, the crank portion 421 is curved from the straight portion 41 from the end portion 21 side on the Y2 side of the base portion 20 toward the end portion 22 side on the Y1 side of the base portion 20. The crank portion 421 is curved in the Y1 direction so that the angle formed with the straight portion 41 is an obtuse angle. Note that the crank portion 421 may be curved in the Y1 direction so that the angle formed with the straight portion 41 is substantially a right angle. Further, the crank portion 421 may be configured to bend from the straight portion 41 in the Y1 direction so as to be bent.

[0040] The straight portion 422 is a linear portion extending in the X direction. The straight portion 422 connects the end portion on the Y1 side of the crank portion 421 located on the X1 side of the holding portion 30 and the end portion on the Y1 side of the crank portion 421 located on the X2 side of the holding portion 30. The straight portion 422 is a portion along the end portion 312 of the thin portion 31. Note that the straight portion 422 may not be formed in the detour portion 42. For example, the end portion on the Y1 side of the crank portion 421 located on the X1 side and the end portion on the Y1 side of the crank portion 421 located on the X2 side may be connected.

[0041] As shown in FIG. 5, a first protrusion 35 and a second protrusion 25 are respectively formed on a first surface 401 and a second surface 402 which are surfaces of the base portion 20 forming the slit hole 40. The first surface 401 is a surface located on the side of the holding portion 30. The second surface 402 is a surface facing the first surface 401. The first surface 401 and the second surface 402 are surfaces having the X direction as the longitudinal direction.

[0042] The first protrusion 35 protrudes from the first surface 401 toward the second surface 402, and the second protrusion 25 protrudes from the second surface 402 toward the first surface 401. The first protrusion 35 and the second protrusion 25 are formed with a step difference in the Z direction. The second protrusion 25 is located on the side of the surface where the hollow seal portion 50 is formed rather than the first protrusion 35 in the Z direction. That is, the second protrusion 25 is located on the Z2 side rather than the first protrusion 35 in the Z direction.

[0043] The first protrusion 35 and the second protrusion 25 are formed at portions corresponding to the detour portions 42 of the first surface 401 and the second surface 402, respectively. That is, the first protrusion 35 and the second protrusion 25 are formed at portions corresponding to the crank portion 421 and the straight portion 422 of the first surface 401 and the second surface 402, respectively. The first protrusion 35 is formed on the first surface 401 on the holding portion 30 side that constitutes the slit hole 40. The second protrusion 25 is formed at a portion of the second surface 402 facing the first surface 401 where the first protrusion 35 is formed. Note that the first protrusion 35 and the second protrusion 25 may be formed at least at portions corresponding to the crank portion 421 of the first surface 401 and the second surface 402, respectively.

[0044] According to the above configuration, the first protrusion 35 and the second protrusion 25 are formed at portions corresponding to the crank portion 421 of the first surface 401 and the second surface 402, respectively. Therefore, when adhering the slit hole 40, the first protrusion 35 and the second protrusion 25 can be abutted in the Z direction, and the first protrusion 35 and the second surface 402, and the second protrusion 25 and the first surface 401 can be abutted in the X direction. Thereby, when adhering the slit hole 40, displacement of the position of the slit hole 40 in the Z direction and the X direction can be prevented. Further, by curving the crank portion 421 so that the angle formed with the straight portion 41 becomes an obtuse angle, as shown in FIG. 5, the first protrusion 35 and the second surface 402, and the second protrusion 25 and the first surface 401 can be abutted in the Y direction. Thereby, displacement of the position of the slit hole 40 in the Y direction can be more effectively prevented.

[0045] 〔Summary〕 The weatherstrip according to Embodiment 1 of the present invention is a weatherstrip attached to a vehicle, and includes a base portion attached to an attachment portion of the vehicle, and a hollow seal portion formed integrally with the base portion and having a hollow shape. The base portion is formed with a holding portion that holds an attachment member for attaching the base portion to the attachment portion, and a slit hole extending in the longitudinal direction of the base portion. A crank portion extending along the short-side direction of the base portion is formed in the slit hole so as to avoid the holding portion. The holding portion is formed with a thin-walled portion having an insertion hole through which the attachment member is inserted, and a thick-walled portion that is thicker than the thin-walled portion and extends in the short-side direction of the base portion on at least one of both end sides of the thin-walled portion in the longitudinal direction of the base portion.

[0046] According to the configuration of Embodiment 1, since the thick-walled portion is formed in the holding portion, the rigidity of the holding portion can be increased, and the holding portion is less likely to bend. Thereby, when adhering the slit hole, the possibility of adhesion failure can be reduced.

[0047] In the weatherstrip according to Embodiment 2 of the present invention, in the above Embodiment 1, the crank portion extends from one end in the short-side direction of the base portion toward the other end, and the thick-walled portion is located between the insertion hole and the crank portion in the longitudinal direction of the base portion, and may extend from the end of the thin-walled portion in a direction away from the insertion hole. According to the configuration of Embodiment 2, the thick-walled portion extends not only in the short-side direction of the base portion but also in the longitudinal direction of the base portion. Therefore, the holding portion can be made more difficult to bend. Thereby, when adhering the slit hole, the possibility of adhesion failure can be further reduced.

[0048] In the weatherstrip according to Embodiment 3 of the present invention, in the above Embodiment 2, the width of the thick-walled portion in the longitudinal direction of the base portion may gradually increase from the other end toward the one end. According to the configuration of Embodiment 3, the ratio of the area of the thick-walled portion to the holding portion can be increased. Therefore, the rigidity of the holding portion can be further increased. Thereby, when adhering the slit hole, the possibility of adhesion failure can be further reduced.

[0049] In the weatherstrip according to Aspect 4 of the present invention, in any one of the above Aspects 1 to 3, the thick portion may be formed on the same side surface as the surface on which the hollow seal portion of the base is formed in the thickness direction of the base. According to the configuration of Aspect 4, on the surface of the holding portion located on the side opposite to the surface on which the hollow seal portion of the base is formed, no step is formed due to the thickness difference between the thick portion and the thin portion. Thereby, it is possible to facilitate the attachment of the attachment member to the holding portion.

[0050] The weatherstrip according to Aspect 5 of the present invention, in any one of the above Aspects 1 to 4, on the surface of the base that forms the slit hole, at least in the portion corresponding to the crank portion of the first surface located on the holding portion side, a first protrusion protruding toward the second surface facing the first surface is formed, and on the surface of the base that forms the slit hole, at least in the portion corresponding to the crank portion of the second surface, a second protrusion protruding toward the first surface is formed, and in the thickness direction of the base, the second protrusion may be located on the side of the surface on which the hollow seal portion is formed rather than the first protrusion.

[0051] According to the configuration of Aspect 5, a first protrusion and a second protrusion are formed in the portions corresponding to the crank portions of the first surface and the second surface, respectively. Therefore, when adhering the slit hole, the first protrusion and the second protrusion can be abutted in the thickness direction of the base, and the first protrusion and the second surface and the second protrusion and the first surface can be abutted in the longitudinal direction of the base. Thereby, when adhering the slit hole, displacement of the position of the slit hole can be prevented.

[0052] 〔Supplementary Notes〕 The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention.

Explanation of Reference Numerals

[0053] 10 Weatherstrip 20 Base 25 Second projection 30 Holding part 31 Thin part 32 Thick part 33 Insertion hole 35 First projection 40 Slit hole 50 Hollow seal part 60 Clip (mounting member)

Claims

Claim 1 A weatherstrip attached to a vehicle, comprising: a base portion attached to a mounting portion of the vehicle; and a hollow seal portion having a hollow shape and formed integrally with the base portion. The base portion is formed with a holding portion for holding a mounting member for attaching the base portion to the mounting portion, and a slit hole extending in the longitudinal direction of the base portion. In the slit hole, a crank portion extending along the short-side direction of the base portion is formed so as to avoid the holding portion. The holding portion is formed with a thin-walled portion having an insertion hole through which the mounting member is inserted, and a thick-walled portion that is thicker than the thin-walled portion and extends in the short-side direction of the base portion on at least one of both ends of the thin-walled portion in the longitudinal direction of the base portion. The weatherstrip is as described above. Claim 2 The crank portion extends from one end to the other end in the short-side direction of the base portion. The thick-walled portion is located between the insertion hole and the crank portion in the longitudinal direction of the base portion, and extends in a direction away from the insertion hole from the end of the thin-walled portion. The weatherstrip according to claim 1. Claim 3 The width of the thick-walled portion in the longitudinal direction of the base portion gradually increases from the other end to the one end. The weatherstrip according to claim 2. Claim 4 The thick-walled portion is formed on the same side surface as the surface on which the hollow seal portion of the base portion is formed in the thickness direction of the base portion. The weatherstrip according to claim 1. Claim 5 On at least a portion of the first surface of the base portion that forms the slit hole and corresponds to the crank portion and is located on the holding portion side, a first protrusion protruding toward a second surface facing the first surface is formed. On at least a portion of the second surface of the base portion that forms the slit hole and corresponds to the crank portion, a second protrusion protruding toward the first surface is formed. In the thickness direction of the base portion, the second protrusion is located closer to the surface on which the hollow seal portion is formed than the first protrusion. The weatherstrip according to any one of claims 1 to 4.

Citation Information

Patent Citations

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