Weather strip

Abstract

According to the invention, the risk of poor bonding when the slit hole is bonded is reduced. A retaining part (30) of a weather strip (10) mounted on a vehicle is provided with a thin wall part (31), the thin wall part (31) is provided with an insertion hole (33) through which a clamp (60) is inserted and a thick wall part (32) thicker than the thin wall part (31), and the thick wall part (32) extends in the short side direction of a base part (20) on at least one side of two end sides of the base part (20) in the long side direction of the thin wall part (31).

Description

Technical Field

[0001] The present invention relates to a weatherstrip. Background Art

[0002] An opening is formed in the body of a vehicle, and a weatherstrip is used to seal a gap formed between the opening and a door for closing the opening. The weatherstrip is mounted on the body or the door by means of a fixture or the like.

[0003] In the weatherstrip of Patent Document 1, a fixture insertion hole through which a fixture is inserted is formed in a base portion of a die forming portion. A slit is formed in the base portion so as to bypass the fixture insertion hole, and the slit is used to extract a metal mold for forming a hollow sealing portion.

[0004] In addition, in the weatherstrip of Patent Document 2, a mold portion through hole into which a fixture is inserted is formed in a die forming portion connected to an extrusion forming portion.

[0005] Prior Art Documents

[0006] Patent Documents

[0007] Patent Document 1: Japanese Patent Application Laid-Open No. 2001-114036

[0008] Patent Document 2: Japanese Patent Application Laid-Open No. 2021-142951 Summary of the Invention

[0009] Problems to be Solved by the Invention

[0010] However, in a general fixture used to mount a weatherstrip on a body or a door, the interval between the head portion of the general fixture and the engaging portion of the general fixture is set to a predetermined interval. Therefore, when using a general fixture, it is necessary to make the wall thickness of the insertion portion through which the fixture is inserted in the weatherstrip thinner than the wall thickness of other portions of the weatherstrip.

[0011] In the weatherstrip of Patent Document 1, the opposing end faces of the slit for extracting the metal mold are bonded with an adhesive to block the slit. However, when the vicinity of the fixture insertion hole is formed as a thin wall, the rigidity is low and it is easy to bend. Therefore, there is a problem that the opposing end faces of the slit holes are likely to be poorly bonded to each other near the fixture insertion hole.

[0012] In the weatherstrip of Patent Document 2, a thick wall portion is formed so as to surround the periphery of a thin wall portion, and the thin wall portion is formed near the mold portion through hole through which the fixture is inserted. Therefore, the rigidity near the mold portion through hole can be improved.

[0013] However, the through holes formed in the weatherstrip of Patent Document 2 are formed in the die-formed portion where no slit holes are formed. The structure of the weatherstrip of Patent Document 2 is completely different from the structure of the weatherstrip of Patent Document 1. Therefore, it is difficult to apply the technology of Patent Document 2 to the technology of Patent Document 1.

[0014] An object of one aspect of the present invention is to reduce the risk of poor adhesion when bonding slit holes.

[0015] Means for Solving the Problem

[0016] To solve the above problems, the weatherstrip according to one embodiment of the present invention is as follows: A weatherstrip to be installed on a vehicle, the weatherstrip having: a base portion installed on the mounted portion of the vehicle, and a hollow sealing portion integrally formed with the base portion and having a hollow shape; the base portion is formed with a holding portion that holds a mounting member for mounting the base portion on the mounted portion, and a slit hole that extends along the long side direction of the base portion; the slit hole is formed with a bent portion that extends along the short side direction of the base portion so as to avoid the holding portion; the holding portion is formed with a thin wall portion that is formed with an insertion through hole for inserting the mounting member, and a thick wall portion that is thicker than the thin wall portion and extends at least on one side of both ends in the long side direction of the base portion of the thin wall portion and in the short side direction of the base portion.

[0017] Effects of the Invention

[0018] According to one aspect of the present invention, the risk of poor adhesion when bonding slit holes can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 (a) is a perspective view showing the appearance of an automobile equipped with a weatherstrip, Figure 1 (b) is a side view schematically showing the overall shape of the weatherstrip installed in a closed-loop shape around the peripheral portion of the front door.

[0020] Figure 2 is a perspective view showing the main part of the weatherstrip according to one embodiment of the present invention.

[0021] Figure 3 is a plan view showing the base portion of the weatherstrip in a state where a jig is installed.

[0022] Figure 4 is a plan view showing the base portion of the weatherstrip in a state where the jig is removed.

[0023] Figure 5 is Figure 3 a cross-sectional view taken along line A-A in

[0024] Figure 6 is Figure 3 a sectional view taken along line B-B in Detailed implementation manners

[0025] 〔Implementation manners〕

[0026] <Installation example of weatherstrip>

[0027] Refer to Figure 1 , the peripheral structure of the door opening 2 in the vehicle 1 equipped with the weatherstrip 10 according to an embodiment of the present invention will be described. The vehicle 1 is an example of a vehicle. As Figure 1 (a) shows, the vehicle 1 is provided with a front door 3. In addition, at the part where the front door 3 is integrated with the vehicle body through a hinge (not shown) when the door is closed in the vehicle body of the vehicle 1, a door opening 2 is formed. The front door 3 is an openable and closable vehicle component for closing the door opening 2.

[0028] In addition, on the door peripheral portion (peripheral portion) 3a of the front door 3, a weatherstrip 10 is installed in a closed-loop shape covering its entire circumference (refer to Figure 1 (b)). The weatherstrip 10 is a vehicle component for sealing between the peripheral edge 2a of the door opening 2 and the door peripheral portion 3a. By elastically abutting the weatherstrip 10 installed on the door peripheral portion 3a against the peripheral edge 2a of the door opening 2, the space between the peripheral edge 2a of the door opening 2 and the door peripheral portion 3a is sealed. In addition, the weatherstrip 10 may also be installed on the peripheral edge 2a of the door opening 2.

[0029] The weatherstrip 10 has an extrusion molding portion 101 and die molding portions 102 and 103. As the weatherstrip 10, it is sufficient that it is formed as an integrated component of at least one or more extrusion molding portions and at least one or more die molding portions. The weatherstrip 10 is formed of sponge rubber. As the material of the rubber, for example, EPDM (Ethylene Propylene Diene Monomer) can be used. As the molding material, thermoplastic elastomer (olefin-based or styrene-based thermoplastic elastomer), other rubber materials, or other elastic materials having the same elasticity as the rubber material can be used. In addition, different materials can be used for each part of the weatherstrip 10. In addition, the weatherstrip 10 may be partially or entirely composed of solid materials.

[0030] In addition, the weatherstrip 10 is not limited to sealing between the peripheral edge 2a of the door opening 2 of the vehicle 1 and the door peripheral edge portion 3a. As the weatherstrip 10, as long as it seals between the opening formed in the vehicle and the lid for closing the opening, for example, it can also seal between the engine compartment and the engine hood.

[0031] <Structure of the main part of the weatherstrip>

[0032] Refer to Figure 2 , and the structural outline of the main part of the weatherstrip 10 according to an embodiment of the present invention will be described. In addition, when describing the structure of the main part of the weatherstrip 10, for the sake of convenience of explanation, three coordinate axes in the X (X1 - X2) direction, Y (Y1 - Y2) direction, and Z (Z1 - Z2) direction as shown in Figure 2 etc. are defined. The X direction is the long side direction of the base 20 of the weatherstrip 10, the Y direction is the short side 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 toward the end 22 side in the Y direction of the base 20, and the Y2 direction is the direction from the end 22 side toward the end 21 side in the Y direction of the base 20. The Z1 direction is the direction from the surface 301 side of the holding portion 30 of the base 20 toward the surface 302 side opposite to the surface 301, and the Z2 direction is the direction from the surface 302 side toward the surface 301 side.

[0033] As shown in Figure 2 , the weatherstrip 10 includes a base 20 and a hollow sealing portion 50. The base 20 is mounted on the mounted portion (not shown) of the door peripheral edge portion 3a by a clamp 60. The clamp 60 is an example of a mounting member for mounting the base 20 to the mounted portion of the door peripheral edge portion 3a. The clamp 60 is a general clamp for mounting the weatherstrip to the vehicle. The clamp 60 includes a head 61 (refer to Figure 3 ), a shaft portion 62, and a locking portion 63.

[0034] The base 20 is formed with: a base main body 23, a holding portion 30 for holding the clamp 60, and a slit hole 40 extending in the X direction. The base main body 23 is the main part of the base 20. The slit hole 40 is a hole for taking out the mold for forming the hollow sealing portion 50 when the mold forming portions 102, 103 of the weatherstrip 10 are formed. After taking out the mold from the slit hole 40, the end faces of the slit hole 40 opposed in the Y direction are bonded to each other. In addition, Figure 2 shows the slit hole 40 in the unbonded state. The detailed structures of the holding portion 30 and the slit hole 40 will be described below. In addition, in this specification, the case of "bonding the opposed ends of the slit" is also expressed as "bonding the slit".

[0035] The hollow sealing portion 50 has a hollow shape and is integrally formed with the base portion 20. The hollow sealing portion 50 is a portion that elastically abuts against the periphery 2a of the door opening portion 2 during the closing process of the door.

[0036] Refer to Figures 3 to 6 , and the detailed structures 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 addition, in Figure 3 and Figure 4 , for the sake of easy observation of the drawings, the illustration of the hollow sealing portion 50 is omitted. Figure 3 and Figure 4 , the portion indicated by the diagonal line in Figures 3 to 6 corresponds to the root portion of the hollow sealing portion 50 connected to the base portion 20. In addition, Figures 3 to 6 shows the slit hole 40 in an unbonded state.

[0037] As Figure 3 shown, the holding portion 30 is formed to protrude from the end portion 21 on the Y2 side of the base portion 20 toward the end portion 22 on the Y1 side of the base portion 20. When viewed from the Z direction, the holding portion 30 is substantially trapezoidal. The Y2 side of the holding portion 30 is connected to the root portion of the hollow sealing portion 50 located on the Y2 side. The holding portion 30 is formed with a thin wall portion 31 and a thick wall portion 32.

[0038] As Figure 4 shown, the thin wall portion 31 is formed with an insertion through hole 33 through which the jig 60 is inserted. The insertion through hole 33 is formed substantially at the center of the thin wall portion 31 in the X direction. By inserting the jig 60 through the insertion through hole 33, the jig 60 is held by the holding portion 30. The end portion 311 on the Y2 side of the thin wall portion 31 is connected to the root portion of the hollow sealing portion 50. The end portion 312 on the Y1 side of the thin wall portion 31 constitutes the straight portion 422 of the slit hole 40.

[0039] As Figure 3 and Figure 4 shown, a plurality of thick wall portions 32 are formed in the holding portion 30, and they are respectively formed on the end portions 313 and 314 on the X direction sides of the thin wall portion 31. As Figure 6 shown, the thick wall portion 32 is formed in the holding portion 30 so as to protrude toward the Z2 side.

[0040] More specifically, as Figure 3 shown, the thick wall portion 32 located on the X1 side of the thin wall portion 31 is connected to the end portion 313 on the X1 side of the thin wall portion 31, and the thick wall portion 32 located on the X2 side of the thin wall portion 31 is connected to the end portion 314 on the X2 side of the thin wall portion 31. The end portion 313 of the thin wall portion 31 and the end portion 323 of the thick wall portion 32 located on the X1 side are in the same position in the X direction. In addition, the end portion 314 of the thin wall portion 31 and the end portion 323 of the thick wall portion 32 located on the X2 side are in the same position in the X direction.

[0041] The thick-walled portion 32 is formed adjacent to the bent portion 421 of the slit hole 40, and the bent portion 421 extends in the Y direction so as to avoid the holding portion 30. In the X direction, the end portion 324 of the thick-walled portion 32 at the position farthest from the insertion through hole 33 is located at the same position as the starting point P1 where the bent portion 421 starts to bend from the straight portion 41 toward the Y1 direction. That is, in the X direction, the thick-walled portion 32 is formed on the region of the holding portion 30 where the thin-walled portion 31 is not formed.

[0042] In addition, as the thick-walled portion 32, it is not limited to a structure in which a plurality are formed on the holding portion 30, and one may be formed only on the X1 side of the thin-walled portion 31 in the X direction or only on the X2 side of the thin-walled portion 31. Moreover, the thick-walled portion 32 is not limited to being formed on the end portions 313 and 314 of the thin-walled portion 31 in the X direction. For example, the thick-walled portion 32 may also be formed between the end portion 313 of the thin-walled portion 31 and the insertion through hole 33 or between the end portion 314 of the thin-walled portion 31 and the insertion through hole 33 in the X direction. That is, the thin-walled portion 31 may also be formed to surround the thick-walled portion 32 extending from the root of the hollow sealing portion 50. In this case, the end portion 313 of the thin-walled portion 31 is located closer to the X1 side than the end portion 324 of the thick-walled portion 32 on the X1 side, and the end portion 314 of the thin-walled portion 31 is located closer to the X2 side than the end portion 324 of the thick-walled portion 32 on the X2 side.

[0043] As Figure 3 shown, the thick-walled portion 32 is formed at a position that does not interfere with the head 61 of the jig 60 held by the thin-walled portion 31. That is, when viewed from the Z direction, the end portion 323 on the X2 side of the thick-walled portion 32 on the X1 side of the thin-walled portion 31 and the end portion 323 on the X1 side of the thick-walled portion 32 on the X2 side of the thin-walled portion 31 are located at positions that do not overlap with the head 61 of the jig 60 held by the holding portion 30.

[0044] As Figure 3 and Figure 4 shown, the thick-walled portion 32 extends in the Y direction. More specifically, the thick-walled portion 32 extends from the base end portion 321 of the thick-walled portion 32 connected to the root of the hollow sealing portion 50 toward the Y1 direction. The thick-walled portion 32 has a structure like a rib. In the Y direction, the front end portion 322 of the thick-walled portion 32 may also be located closer to the Y1 side than the end portion 331 on the Y1 side of the insertion through hole 33. The front end portion 322 is the end portion of the thick-walled portion 32 that is located closest to the Y1 side in the Y direction. In addition, the front end portion 322 may also be located closer to the Y2 side than the end portion 331 of the insertion through hole 33 in the Y direction.

[0045] In addition, the thick-walled portion 32 is located in the X direction between the insertion through-hole 33 and the bent portion 421 of the slit hole 40, and extends away from the insertion through-hole 33 from the end portions 313 and 314 of the thin-walled portion 31. Specifically, the thick-walled portion 32 on the X1 side of the thin-walled portion 31 extends from the end portion 313 in the X1 direction. Moreover, the thick-walled portion 32 on the X2 side of the thin-walled portion 31 extends from the end portion 314 in the X2 direction. The surface of the thick-walled portion 32 that connects the end portion 324 and the front end portion 322 and forms the slit hole 40 constitutes a part of the bent portion 421 and has a curved surface shape corresponding to the shape of the bent portion 421.

[0046] As Figure 4 shown, the width W1 of the base end portion 321 is wider than the width W2 of the front end portion 322. Here, in this specification, the width of the thick-walled portion 32 refers to the width in the X direction. More specifically, the width of the thick-walled portion 32 gradually becomes wider as it goes from the Y1 side toward the Y2 side. In addition, the width of the thick-walled portion 32 is not limited to such a structure. As the thick-walled portion 32, for example, it can also be in an L shape, where only the width W1 of the base end portion 321 is enlarged and the width of the other portions is the same as the width W2 of the front end portion 322. In addition, as the thick-walled portion 32, it can also be made into a structure that only extends in the Y direction and does not extend away from the insertion through-hole 33. That is, the width W1 of the base end portion 321 of the thick-walled portion 32 and the width W2 of the front end portion 322 can also be the same width. For example, the width of the thick-walled portion 32 can be in an I shape and have a substantially uniform width in the Y direction.

[0047] As Figure 6 shown, the wall thickness T2 of the thick-walled portion 32 in the Z direction is thicker than the wall thickness T1 of the thin-walled portion 31 in the Z direction. The wall thickness T1 is formed to be thinner than the interval between the head 61 and the locking portion 63 of the jig 60 in the Z direction. The wall thickness T2 of the thick-walled portion 32 is the same as the wall thickness T3 of the base body 23 in the Z direction. An example of the wall thickness T1 is 2 mm, and an example of the wall thickness T2 is 4 mm. In addition, the wall thickness T2 can be thinner than the wall thickness T3 or thicker than the wall thickness T3. Moreover, the wall thickness of the thick-walled portion 32 on the X1 side in the Z direction and the wall thickness of the thick-walled portion 32 on the X2 side in the Z direction can also be different wall thicknesses.

[0048] As Figure 4 and Figure 5As shown, the thick wall portion 32 is formed on the surface 301 of the holding portion 30 on the Z2 side in the Z direction, which is the same side as the surface of the base portion 20 where the hollow sealing portion 50 is formed. Thus, in the Z direction, on the surface 302 on the Z1 side of the holding portion 30, which is on the opposite side of the surface of the base portion 20 where the hollow sealing portion 50 is formed, no height difference is generated due to the wall thickness difference between the thick wall portion 32 and the thin wall portion 31. That is, the surface 302 can be a flat surface. Thus, the jig 60 can be easily mounted on the holding portion 30. In addition, since the surface 302 is a flat surface, the weatherstrip 10 can also be easily mounted on the mounting portion of the peripheral portion 3a of the vehicle door. In addition, the thick wall portion 32 can also be formed on the surface on the opposite side of the surface of the base portion 20 where the hollow sealing portion 50 is formed.

[0049] As described above, since the holding portion 30 is formed with the thick wall portion 32, the rigidity of the holding portion 30 can be improved, and the holding portion 30 is less likely to flex. Thus, the risk of poor adhesion when bonding the slit holes 40 can be reduced. For example, for the weatherstrip 10 having slit holes 40 that are likely to have poor adhesion, such as (i) the slit holes 40 formed on the mold forming portion 103 with a large curvature (refer to Figure 1 ) or (ii) the slit holes 40 having a long length in the X direction, it is more effective. In addition, since the thick wall portion 32 extends in the Y direction, the holding portion 30 is less likely to flex in the Y direction. Thus, it is also possible to prevent the position shift of the slit holes 40 in the Y direction when bonding the slit holes 40.

[0050] In addition, the thick wall portion 32 not only extends in the Y direction but also extends in the X direction. Therefore, the holding portion 30 can be made less likely to flex. Thus, the risk of poor adhesion when bonding the slit holes 40 can be further reduced.

[0051] In addition, since the width of the thick wall portion 32 gradually becomes wider from the Y1 side toward the Y2 side, the area ratio of the thick wall portion 32 to the holding portion 30 can be increased. Therefore, the rigidity of the holding portion 30 can be further improved. Thus, the risk of poor adhesion when bonding the slit holes 40 can be further reduced.

[0052] As Figure 3 and Figure 4 shown, the slit holes 40 are 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 formed in a manner that bypasses the holding portion 30. The detour portion 42 is formed with a curved portion 421 and a straight portion 422.

[0053] The bent portion 421 extends in the Y direction so as to avoid the holding portion 30. More specifically, the bent portion 421 bends from the end portion 21 on the Y2 side of the base portion 20 toward the end portion 22 on the Y1 side of the base portion 20 starting from the straight portion 41. The bent portion 421 bends in the Y1 direction at an obtuse angle with respect to the straight portion 41. In addition, the bent portion 421 may also bend in the Y1 direction at an angle substantially perpendicular to the straight portion 41. Moreover, the bent portion 421 may also be structured to bend from the straight portion 41 in the Y1 direction in a folded manner.

[0054] 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 bent portion 421 on the X1 side of the holding portion 30 and the end portion on the Y1 side of the bent portion 421 on the X2 side of the holding portion 30. The straight portion 422 is a portion along the end portion 312 of the thin wall portion 31. In addition, the straight portion 422 may not be formed in the detour portion 42. For example, the end portion on the Y1 side of the bent portion 421 on the X1 side may be connected to the end portion on the Y1 side of the bent portion 421 on the X2 side.

[0055] As Figure 5 shown, a first protrusion 35 and a second protrusion 25 are respectively formed on the first surface 401 and the second surface 402 of the base portion 20 where the slit hole 40 is formed, that is, the first surface 401 and the second surface 402. The first surface 401 is the surface on the side of the holding portion 30. The second surface 402 is the surface opposed to the first surface 401. The first surface 401 and the second surface 402 are surfaces having the X direction as the long side direction.

[0056] The first protrusion 35 protrudes from the first surface 401 toward the second surface 402 side, and the second protrusion 25 protrudes from the second surface 402 toward the first surface 401 side. The first protrusion 35 and the second protrusion 25 form a height difference in the Z direction. In the Z direction, the second protrusion 25 is located closer to the surface where the hollow sealing portion 50 is formed than the first protrusion 35. That is, in the Z direction, the second protrusion 25 is located closer to the Z2 side than the first protrusion 35.

[0057] The first protrusion 35 and the second protrusion 25 are respectively formed on the portions of the first surface 401 and the second surface 402 corresponding to the detour portion 42. That is, the first protrusion 35 and the second protrusion 25 are respectively formed on the portions of the first surface 401 and the second surface 402 corresponding to the bent portion 421 and the straight portion 422. The first protrusion 35 is formed on the first surface 401 on the holding portion 30 side constituting the slit hole 40. The second protrusion 25 is formed on the portion of the second surface 402 opposed to the first surface 401 where the first protrusion 35 is formed. In addition, as the first protrusion 35 and the second protrusion 25, it is sufficient that they are respectively formed on at least the portions of the first surface 401 and the second surface 402 corresponding to the bent portion 421.

[0058] According to the above structure, on the parts of the first surface 401 and the second surface 402 corresponding to the bent portion 421, a first protrusion 35 and a second protrusion 25 are respectively formed. Therefore, when bonding the slit hole 40, the first protrusion 35 and the second protrusion 25 can abut in the Z direction, and the first protrusion 35 and the second surface 402 as well as the second protrusion 25 and the first surface 401 can abut in the X direction. Thus, it is possible to prevent the position deviation of the slit hole 40 in the Z direction and the X direction when bonding the slit hole 40. In addition, by bending the bent portion 421 into an obtuse angle with respect to the straight portion 41, as Figure 5 shown, the first protrusion 35 and the second surface 402 as well as the second protrusion 25 and the first surface 401 can abut in the Y direction. Thus, it is possible to further prevent the position deviation of the slit hole 40 in the Y direction.

[0059] 〔Summary〕

[0060] The weatherstrip according to the first aspect of the present invention is as follows: A weatherstrip to be installed on a vehicle, the weatherstrip having: a base portion installed on an installation portion of the vehicle, and a hollow sealing portion integrally formed with the base portion; the base portion is formed with a holding portion that holds an installation member for installing the base portion on the installation portion, and a slit hole that extends along the long side direction of the base portion; the slit hole is formed with a bent portion that extends along the short side direction of the base portion so as to avoid the holding portion; the holding portion is formed with a thin wall portion that is formed with an insertion through hole for inserting the installation member, and a thick wall portion that is thicker than the thin wall portion and extends at least on one side of both ends in the long side direction of the base portion of the thin wall portion and extends in the short side direction of the base portion.

[0061] According to the structure of the first aspect, since the holding portion is formed with a thick wall portion, the rigidity of the holding portion can be improved, and the holding portion is not easily deflected. Thus, the risk of poor bonding when bonding the slit hole can be reduced.

[0062] According to the weatherstrip related to the second aspect of the present invention, in the above first aspect, it may also be: the bent portion extends from one end portion in the short side direction of the base portion to the other end portion, the thick wall portion is located between the insertion through hole and the bent portion in the long side direction of the base portion, and extends from the end portion of the thin wall portion in a direction away from the insertion through hole. According to the structure of the second aspect, the thick wall portion extends not only in the short side direction of the base portion but also in the long side direction of the base portion. Therefore, the holding portion can be made less likely to deflect. Thus, the risk of poor bonding when bonding the slit hole can be further reduced.

[0063] According to the weatherstrip related to the third aspect of the present invention, in the above second aspect, it may also be: the width of the thick wall portion in the longitudinal direction of the base gradually becomes wider as it goes from the other end to the one end. According to the structure of the third aspect, the area ratio of the thick wall portion to the holding portion can be increased. Therefore, the rigidity of the holding portion can be further improved. Thereby, the risk of poor adhesion when bonding the slit holes can be further reduced.

[0064] According to the weatherstrip related to the fourth aspect of the present invention, in any one of the above first to third aspects, it may also be: the thick wall portion is formed on the same side surface as the surface of the base where the hollow sealing portion is formed in the thickness direction of the base. According to the structure of the fourth aspect, on the surface of the holding portion located on the side opposite to the surface of the base where the hollow sealing portion is formed, there is no height difference caused by the wall thickness difference between the thick wall portion and the thin wall portion. Thereby, it is possible to easily mount the mounting member on the holding portion.

[0065] According to the weatherstrip related to the fifth aspect of the present invention, in any one of the above first to fourth aspects, it may also be: on at least a portion corresponding to the bent portion on the first surface of the base where the slit hole is formed, that is, on the side of the holding portion, a first protrusion is formed, which protrudes toward the second surface facing the first surface. On at least a portion corresponding to the bent portion on the second surface of the base where the slit hole is formed, that is, on the second surface, a second protrusion is formed, which protrudes toward the first surface. In the thickness direction of the base, the second protrusion is located closer to the surface where the hollow sealing portion is formed than the first protrusion.

[0066] According to the structure of the fifth aspect, a first protrusion and a second protrusion are respectively formed on portions of the first surface and the second surface corresponding to the bent portion. Therefore, when bonding the slit holes, the first protrusion and the second protrusion can abut in the thickness direction of the base, and the first protrusion and the second surface as well as the second protrusion and the first surface can abut in the longitudinal direction of the base. Thereby, it is possible to prevent the position deviation of the slit holes when bonding the slit holes.

[0067] 〔Supplementary Notes〕

[0068] The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention.

[0069] Description of Reference Numerals

[0070] 10 Weatherstrip

[0071] 20 Base

[0072] 25 Second Protrusion

[0073] 30 Holding Portion

[0074] 31 Thin-Walled Portion

[0075] 32 Thick-Walled Portion

[0076] 33 Insertion Through-Hole

[0077] 35 First Protrusion

[0078] 40 Slit Hole

[0079] 50 Hollow Sealing Portion

[0080] 60 Fixture (Mounting Component)

Claims

1. A weatherstrip installed on a vehicle, the weatherstrip having: a base portion installed on an installed portion of the vehicle, and a hollow sealing portion formed integrally with the base portion and having a hollow shape; the base portion is formed with a holding portion that holds an installation member for installing the base portion on the installed portion, and a slit hole that extends in the longitudinal direction of the base portion; the slit hole is formed with a bent portion that extends in the short-side direction of the base portion so as to avoid the holding portion; the holding portion is formed with a thin-wall portion that is formed with an insertion through-hole for inserting the installation member, and a thick-wall portion that is thicker than the thin-wall portion and extends at least on one side of both ends in the longitudinal direction of the base portion of the thin-wall portion and in the short-side direction of the base portion.

2. The weatherstrip according to claim 1, wherein the bent portion extends from one end in the short-side direction of the base portion to the other end, the thick-wall portion is located between the insertion through-hole and the bent portion in the longitudinal direction of the base portion, and extends from the end of the thin-wall portion in a direction away from the insertion through-hole.

3. The weatherstrip according to claim 2, wherein the width of the thick-wall portion in the longitudinal direction of the base portion gradually becomes wider as it goes from the other end toward the one end.

4. The weatherstrip according to claim 1, wherein the thick-wall portion is formed on the same side surface in the thickness direction of the base portion as the surface on which the hollow sealing portion is formed.

5. The weatherstrip according to any one of claims 1 to 4, wherein on at least a portion corresponding to the bent portion of the first surface of the base portion where the slit hole is formed, that is, on the side of the holding portion, a first protrusion is formed that protrudes toward a second surface opposed to the first surface, on at least a portion corresponding to the bent portion of the second surface of the base portion where the slit hole is formed, that is, a second protrusion is formed that protrudes toward the first surface, in the thickness direction of the base portion, the second protrusion is located closer to the surface on which the hollow sealing portion is formed than the first protrusion.

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