Seal cover and seal member

Abstract

To improve cut-off performance of a first lip part to improve seal performance of a seal cover.SOLUTION: A seal member (26) has a seal body (28) which is inserted into a groove (20) of a cover member (18). A first seal lip part (34) which makes pressure contact with a peripheral edge part at the side located close to a door hole (16) of the groove (20) of the cover member (18) is formed protruding to the door hole (16) at a vehicle outer end part of the seal body (28). The seal member (26) has an edge seal part (40) provided at the vehicle outer end part of the seal body (28). The edge seal part (40) is configured to push the first seal lip part (34) to the cover member (18) side while making pressure contact with a peripheral edge part of the door hole (16) of a door inner panel (14).SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a seal cover attached to an inner door panel of an automobile, and a seal member used in a seal structure such as a seal cover. [Background technology]

[0002] Conventionally, a seal cover has been used to prevent water such as rainwater from entering the inside of a vehicle through a door hole formed in an inner door panel of the vehicle. For example, the seal cover described in Patent Document 1 has the following configuration.

[0003] The door inner panel is provided with a cover member (carrier plate in Patent Document 1) that covers the door hole. The cover member is formed with a groove (concave groove in Patent Document 1) that is recessed toward the inside of the vehicle and surrounds the door hole. In addition, a seal member (foam seal material in Patent Document 1) is attached between the door inner panel and the cover member so as to surround the door hole. The seal member has a base that is accommodated in the groove of the door inner panel and a seal portion formed on the end of the base on the outside of the vehicle. The seal portion of the seal member is configured to be pressed against the peripheral portion of the groove of the cover member while being pressed against the peripheral portion of the door hole of the door inner panel. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-166421 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, a portion of the seal part of the seal member that is located at the edge of the groove of the cover member where the radius of curvature is small cannot follow the shape of the groove of the cover member and may rise up from the cover member, resulting in a problem that the watertightness of the seal part of the seal member is reduced and it is difficult to improve the sealing performance of the seal cover.

[0006] In addition, in seal structures other than the seal cover, if a part of the seal member is located on the edge of a portion of the recess of the cover member where the radius of curvature is small, the same problem as described above may occur.

[0007] Therefore, an object of one aspect of the present invention is to improve the sealing performance of a seal cover and the sealing performance of a seal member. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems, a seal cover according to one embodiment of the present invention is a seal cover to be attached to the door inner panel of an automobile, and has a groove recessed toward the inside of the vehicle so as to surround a door hole in the door inner panel, and comprises: a cover member covering the door hole from the inside of the vehicle; and a seal member attached between the door inner panel and the cover member so as to surround the door hole, and the seal member is characterized in that it has a seal body that is inserted into the groove of the cover member and has a first lip portion formed at its outside end toward the door hole and pressed against the peripheral portion (inner peripheral portion) of the groove of the cover member on the side closer to the door hole, and a seal portion provided at the outside end of the seal body and configured to press the first lip portion toward the cover member while pressing against the peripheral portion of the door hole in the door inner panel.

[0009] With the above configuration, the first lip portion is pressed against the peripheral edge of the groove of the cover member on the near side, thereby stopping water from entering the gap between the door inner panel and the cover member from the door hole on the cover member side. The seal portion is pressed against the peripheral edge of the door hole of the door inner panel, thereby stopping water from entering the gap between the door inner panel and the cover member from the door hole on the door inner panel side. This makes it possible to prevent water from entering the inside of the vehicle from the door hole.

[0010] As described above, the seal portion is configured to press the first lip portion against the cover member while being pressed against the periphery of the door hole of the door inner panel. Therefore, although the portion of the first lip portion located at the edge of the groove of the cover member where the curvature radius is small tends to rise up from the cover member, the localized rise up of the first lip portion against the cover member can be suppressed. This enhances the watertightness of the first lip portion and improves the sealing performance of the seal cover.

[0011] In a seal cover according to one embodiment of the present invention, the seal portion may be configured to press against the peripheral edge of the door hole of the door inner panel while enveloping the first lip portion and pressing it against the cover member.

[0012] According to the above configuration, the seal portion presses against the peripheral edge of the door hole of the door inner panel while pressing against the peripheral edge of the groove of the cover member on the near side. Then, the seal portion stops water that has infiltrated into the gap between the door inner panel and the cover member from the door hole on the door inner panel side and the cover member side. This improves the watertightness of not only the first lip portion but also the seal portion, improving the sealing performance of the seal cover.

[0013] In one embodiment of the seal cover of the present invention, a second lip portion is formed at the vehicle exterior end of the seal body, protruding toward the opposite side of the door hole and pressed against the peripheral edge (outer peripheral edge) of the groove of the cover member on the side farther from the door hole, and a third lip portion is formed at the base end of the second lip portion, protruding toward the opposite side of the door hole and pressed against the peripheral edge of the door hole of the door inner panel.

[0014] With the above configuration, the second lip portion is pressed against the peripheral edge of the groove of the cover member on the far side. Then, the first lip portion and the second lip portion, on the cover member side, provide a doubly water-blocking function against water that has infiltrated from the door hole into the gap between the door inner panel and the cover member. Also, the third lip portion is pressed against the peripheral edge of the door hole of the door inner panel. Then, on the door inner panel side, the seal portion and the third lip portion, on the door inner panel side, provide a doubly water-blocking function against water that has infiltrated from the door hole into the gap between the door inner panel and the cover member. This makes it possible to sufficiently prevent water from infiltrating from the door hole into the inside of the vehicle.

[0015] In order to solve the above-mentioned problems, a sealing member according to one embodiment of the present invention is a sealing member that is attached between a cover member and a mounting base to which the cover member is to be attached, so as to surround the opening of the mounting base, and includes a seal body that is inserted into a recess formed in the cover member so as to surround the opening of the mounting base, and has one side end with a first lip portion that protrudes toward the inside of the seal and is pressed against the peripheral edge of the recess of the cover member on the side closer to the opening, and a seal portion that is provided on one side end of the seal body and is configured to press the first lip portion toward the cover member while pressing against the peripheral edge of the opening of the mounting base.

[0016] According to the above configuration, the first lip portion is pressed against the peripheral edge of the cover member on the near side of the recess, thereby sealing the fluid on the cover member side. The seal portion is pressed against the peripheral edge of the opening of the mounting base, thereby sealing the fluid on the mounting base side. This makes it possible to prevent fluid from entering through the opening of the mounting base or into the opening of the mounting base.

[0017] As described above, the seal portion is configured to press the first lip portion toward the cover member while being pressed against the peripheral edge of the opening of the mounting base. Therefore, although the portion of the first lip portion located at the edge of the portion of the cover member where the curvature radius of the groove is small tends to rise up from the cover member, it is possible to suppress localized lifting of the first lip portion from the cover member. This enhances the sealing property of the first lip portion and improves the sealing performance of the seal member.

[0018] In a sealing member according to one aspect of the present invention, the sealing portion may be configured to press against the peripheral edge of the opening of the mounting base while enveloping the first lip portion and pressing it against the cover member.

[0019] According to the above configuration, the seal portion is pressed against the peripheral edge of the opening of the mounting base while being pressed against the peripheral edge of the cover member on the near side of the recess. The seal portion then seals against fluid on the mounting base side and the cover member side. This enhances the sealing ability of the seal portion and improves the sealing performance of the seal member.

[0020] In a seal member according to one embodiment of the present invention, a second lip portion is formed at one side end of the seal body so as to protrude toward the outside of the seal and to be pressed against the peripheral edge of the recess of the cover member on the side farther from the opening, and a third lip portion is formed at a base end of the second lip portion so as to protrude toward the outside of the seal and to be pressed against the peripheral edge of the opening of the mounting base.

[0021] According to the above configuration, the second lip portion is pressed against the peripheral edge portion of the recess of the cover member on the far side. The first lip portion and the second lip portion then provide a doubly sealed fluid seal on the cover member side. The third lip portion is pressed against the peripheral edge portion of the opening of the mounting base. The seal portion and the third lip portion then provide a doubly sealed fluid seal on the mounting base side. This makes it possible to sufficiently prevent fluid from entering through the opening of the mounting base or into the opening of the mounting base.

[0022] In addition, in order to solve the above-mentioned problems, a seal cover according to one embodiment of the present invention is a seal cover to be attached to the door inner panel of an automobile, and includes a cover member which covers the door hole from the inside of the vehicle and has a groove which is recessed toward the inside of the vehicle and is formed to surround the door hole, and a seal member which is attached between the door inner panel and the cover member to surround the door hole, and the seal member has a seal body which is inserted into the groove of the cover member and is made of solid rubber and has a recess formed in a portion facing the door hole, and a seal portion which is provided in the recess of the seal body and is made of sponge rubber and is configured to be pressed against the peripheral portion of the door hole of the door inner panel while being pressed against the peripheral portion (inner peripheral portion) of the groove of the cover member on the side closer to the door hole.

[0023] According to the above configuration, the seal portion presses against the peripheral portion of the door hole of the door inner panel while pressing against the peripheral portion of the groove of the cover member on the side closer to the door hole. Then, the seal portion stops water that has infiltrated from the door hole into the gap between the door inner panel and the cover member on the door inner panel side and the cover member side. This makes it possible to prevent water from infiltrating into the interior of the vehicle through the door hole.

[0024] As described above, the recess is formed in a portion of the seal body facing the door hole, and a seal portion made of sponge rubber is provided in the recess of the seal body. The seal portion is configured to be in pressure contact with the peripheral edge of the door hole of the door inner panel while being in pressure contact with the peripheral edge of the groove on the near side of the cover member. Therefore, even if a portion of the seal portion is located on the edge of a portion of the groove of the cover member where the radius of curvature is small, the portion of the seal portion will not lift up from the cover member. This increases the watertightness of the seal portion and improves the sealing performance of the seal cover.

[0025] In addition, in order to solve the above-mentioned problems, a sealing member according to one embodiment of the present invention is a sealing member that is attached between a cover member and a mounting base to which the cover member is to be attached, so as to surround the opening of the mounting base, and includes a seal body that is inserted into a recess formed in the cover member so as to surround the opening of the mounting base, and has a recessed portion formed in a portion facing the opening, and a seal portion that is made of sponge rubber and is configured to be pressed against the peripheral edge of the opening of the mounting base while being pressed against the peripheral edge of the step of the cover member on the side closer to the opening.

[0026] According to the above configuration, the seal portion presses against the peripheral edge of the opening of the mounting base while pressing against the peripheral edge of the step of the cover member on the near side. The seal portion then seals against fluid on the mounting base side and the cover member side. This makes it possible to prevent fluid from entering through the opening of the mounting base or into the opening of the mounting base.

[0027] As described above, the recess is formed in a portion of the seal body facing the opening, and a seal portion made of sponge rubber is provided in the recess of the seal body. The seal portion is configured to be pressed against the peripheral edge of the opening of the mounting base while being pressed against the peripheral edge of the step of the cover member on the near side. Therefore, even if a portion of the seal portion is located on the edge of a portion of the recess of the cover member where the radius of curvature is small, the portion of the seal portion will not lift up from the cover member. This enhances the sealing property of the seal portion and improves the sealing performance of the seal member. Effect of the Invention

[0028] According to one aspect of the present invention, the water-stopping property of the first lip portion is improved, thereby improving the sealing performance of the seal cover. Also, the sealing property of the first lip portion is improved, thereby improving the sealing performance of the seal member. [Brief description of the drawings]

[0029] [Figure 1] 1 is a schematic diagram showing the structure of an inner side of an automobile door in which a seal cover according to embodiment 1 or embodiment 2 is attached to an inner door panel. FIG. [Diagram 2] 1 is a schematic diagram of a seal cover according to embodiment 1 or embodiment 2 as viewed from the vehicle exterior side. [Diagram 3] 1 is a cross-sectional view of a seal member according to a first embodiment. [Figure 4] 4 is a partial cross-sectional view of the seal cover according to the first embodiment, taken along line IV-IV in FIG. 2. FIG. [Diagram 5] 3 is a partial cross-sectional view of the seal cover according to the first embodiment, taken along line VV in FIG. 2. FIG. [Figure 6] 6 is a partial cross-sectional view of the seal cover according to the first embodiment, taken along line VI-VI in FIG. 2. FIG. [Figure 7] FIG. 6 is a cross-sectional view of a seal member according to a second embodiment. [Figure 8]4 is a partial cross-sectional view of a seal cover according to a second embodiment, taken along line IV-IV in FIG. 2. FIG. [Figure 9] 5 is a partial cross-sectional view of a seal cover according to a second embodiment, taken along line VV in FIG. 2. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the specification and claims of this application, "pressure contact" refers to contact with pressure. "Mounting base" refers to a member to which the cover member is attached, and is intended to include the door inner panel. "Opening of the mounting base" refers to a door hole formed in the door inner panel. "Recessed portion of the cover member" refers to a groove in the cover member and a step in the cover member. "Outside of the seal" refers to the side facing outward of the opening of the mounting base, or the opposite side to the door hole, when the seal member is attached between the mounting base and the cover member so as to surround the opening of the mounting base. "Inside of the seal" refers to the side facing outward of the opening of the mounting base, or the opposite side to the door hole, when the seal member is attached between the mounting base and the cover member so as to surround the opening of the mounting base. Inside In the drawings, "CE" refers to the side facing the vehicle, "CI" refers to the inside of the vehicle, "SE" refers to the outside of the seal (opposite the door hole), "SI" refers to the inside of the seal (door hole side), "U" refers to the upper side, and "D" refers to the lower side.

[0031] [Embodiment 1] A first embodiment will be described with reference to Figs. 1 to 6. Fig. 1 is a schematic diagram showing the structure of the interior side of an automobile door in which a seal cover according to the first embodiment is attached to a door inner panel. Fig. 2 is a schematic diagram showing the seal cover according to the first embodiment as viewed from the exterior side of the vehicle. Fig. 3 is a cross-sectional view of a seal member according to the first embodiment. Fig. 4 is a partial cross-sectional view of the seal cover according to the first embodiment, taken along line IV-IV in Fig. 2. Fig. 5 is a partial cross-sectional view of the seal cover according to the first embodiment, taken along line VV in Fig. 2. Fig. 6 is a partial cross-sectional view of the seal cover according to the first embodiment, taken along line VI-VI in Fig. 2.

[0032] (Outline of Seal Cover 10) As shown in Fig. 1 and Fig. 2, the seal cover 10 according to the first embodiment is a seal structure that is attached to a door inner panel 14 that constitutes a part of an automobile door 12 and prevents water such as rainwater from entering the inside of the vehicle through a door hole 16 formed in the door inner panel 14. Here, the door hole 16 is an opening through which a worker can insert his / her hands or tools when repairing various parts arranged inside the door 12, for example. Note that Fig. 1 illustrates a front door as an example of the door 12.

[0033] (Cover member 18) As shown in Fig. 2, the seal cover 10 includes a cover member 18 that is attached to the door inner panel 14 via a clip (not shown) and covers the door hole 16 from the inside of the vehicle. The cover member 18 is formed with a groove 20 as a recess that is recessed toward the inside of the vehicle so as to surround the door hole 16. One end and the other end of the groove 20 are connected in a parallel state, in other words, the groove 20 has a connecting portion 22 that is connected in a parallel state. An intermediate wall 24 (see Fig. 5) is formed in the center of the connecting portion 22 of the groove 20.

[0034] The cover member 18 is made of, for example, vulcanized rubber, thermoplastic elastomer, thermoplastic resin, or metal. Examples of vulcanized rubber include EPDM (ethylene-propylene-diene monomer), IR (isoprene rubber), CR (chloroprene rubber), styrene-butadiene rubber (SBR), or acrylonitrile-butadiene rubber (NBR). Examples of thermoplastic elastomers include olefin-based (TPO) or styrene-based (TPS). Examples of thermoplastic molding resins include PE (polyethylene), PP (polypropylene), PVA (polyvinyl alcohol), PVC (polyvinyl chloride), PS (polystyrene), ABS (acrylonitrile-butadiene-styrene), or EVA (ethylene vinyl acetate). Examples of composites include an assembly of fibers such as a glass fiber blend. Examples of metals include aluminum or iron.

[0035] (Sealing member 26) 2, the seal cover 10 includes a string-like seal member 26 attached between the door inner panel 14 and the cover member 18 so as to surround the door hole 16. The specific configuration of the seal member 26 according to the first embodiment is as follows.

[0036] (Seal body 28) As shown in Figs. 3 to 5, the seal member 26 has a seal body 28 inserted (housed) in the groove 20 of the cover member 18, and the seal body 28 is configured in a solid shape. The seal body 28 is made of vulcanized rubber, thermoplastic elastomer, thermoplastic resin, etc. Examples of vulcanized rubber include EPDM, IR (isoprene rubber), CR (chloroprene rubber), styrene-butadiene rubber (SBR), and acrylonitrile-butadiene rubber (NBR). Examples of thermoplastic elastomers include olefin-based (TPO) and styrene-based (TPS). Examples of thermoplastic resins include polyethylene (PE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), and polyvinyl chloride.

[0037] A first retaining lip portion 30 is formed on a portion of the seal body 28 on the inner side of the seal, and the first retaining lip portion 30 is pressed against the inner wall (inner inner wall) of the groove 20 of the cover member 18 on the door hole 16 side by its elastic force. A second retaining lip portion 32 is formed on a portion of the seal body 28 on the outer side of the seal, and the second retaining lip portion 32 is pressed against the inner wall (outer inner wall) of the groove 20 of the cover member 18 on the side opposite the door hole 16 side by its elastic force. This allows the seal body 28 to be stably held in the groove 20 of the cover member 18.

[0038] At the outer end of the seal body 28, which is one side end, a first seal lip portion 34 as a first lip portion is formed so as to protrude toward the door hole 16 (inside of the seal). The first seal lip portion 34 is pressed against the peripheral portion (inner peripheral portion) of the groove 20 of the cover member 18 on the side closer to the door hole 16 by its elastic force. At the outer end of the seal body 28, a second seal lip portion 36 as a second lip portion is formed so as to protrude toward the opposite side of the door hole 16 (outside of the seal). The second seal lip portion 36 is pressed against the peripheral portion (outer peripheral portion) of the groove 20 of the cover member 18 on the side farther from the door hole 16 by its elastic force. At the base end of the second seal lip portion 36, a third seal lip portion 38 as a third lip portion is formed so as to protrude toward the opposite side of the door hole 16. The third seal lip portion 38 is pressed against the peripheral portion of the door hole 16 of the door inner panel 14 by its elastic force.

[0039] (Edge seal part 40) As shown in Figures 3 to 5, an edge seal portion 40 serving as a seal portion is provided at the vehicle exterior end of the seal body 28 so as to protrude towards the vehicle exterior, and the edge seal portion 40 is configured in a foamed sponge-like shape. A part of the edge seal portion 40 may be configured in a sponge-like shape and the remaining part of the edge seal portion 40 may be configured in a solid shape. Like the seal body 28, the edge seal portion 40 is made of vulcanized rubber, thermoplastic elastomer, thermoplastic resin, or the like. The edge seal portion 40 may be molded simultaneously with the seal body 28 by double extrusion molding.

[0040] The edge seal portion 40 is pressed against the peripheral edge of the door hole 16 of the door inner panel 14 by its elastic force. In addition, the edge seal portion 40 is configured to press against the inner peripheral edge of the groove 20 of the cover member 18 in a state in which it encloses the first seal lip portion 34 while being pressed against the peripheral edge of the door hole 16 of the door inner panel 14 by its elastic force.

[0041] The edge seal portion 40 is inclined toward the first seal lip portion 34 (the inner side of the seal) with respect to the center line 28c of the seal body 28 before being pressed against the peripheral portion of the door hole 16 of the door inner panel 14. This reduces the load acting on the door inner panel 14 from the seal member 26 when attaching the cover member 18 to the door inner panel 14, improving the ease of assembly of the cover member 18. The center line 28c of the seal body 28 refers to the center line of the portion of the seal body 28 excluding the first seal lip portion 34, the second seal lip portion 36, and the third seal lip portion 38.

[0042] As described above, the edge seal portion 40 is configured in a sponge-like manner, and is therefore softer than the seal body 28. This causes the edge seal portion 40 to compress and deform, and to come into close contact with the peripheral portion of the door hole 16 of the door inner panel 14, the first seal lip portion 34, and the inner peripheral portion of the groove of the cover member 18. Here, "soft" refers to a mode in which the material of the edge seal portion 40 is soft, as well as a mode in which the edge seal portion 40 is formed in a shape that is easily deformed, such as a hollow shape.

[0043] (Other configurations of the seal member 26) The portion of the third seal lip portion 38 located below the door hole 16 is pressed against a lower portion of a drainage hole 42 formed immediately below the peripheral edge of the door hole 16 in the door inner panel 14. The portion of the edge seal portion 40 located below the door hole 16 is pressed against an upper portion of the drainage hole 42 in the door inner panel 14. As a result, even if water such as rainwater seeps into the gap between the edge seal portion 40 and the third seal lip portion 38 from the door hole 16, the water can be drained by gravity through the drainage hole 42 to the outside of the vehicle (outside).

[0044] (Action and effect) Next, the effects of the first embodiment will be described.

[0045] The first seal lip portion 34 is pressed against the inner peripheral portion of the groove 20 of the cover member 18, and the second seal lip portion 36 is pressed against the outer peripheral portion of the groove 20 of the cover member 18. Then, the first seal lip portion 34 and the second seal lip portion 36 double-stop water such as rainwater that has infiltrated from the door hole 16 into the gap between the door inner panel 14 and the cover member 18 on the cover member 18 side. Also, the edge seal portion 40 and the third seal lip portion 38 are pressed against the peripheral portion of the door hole 16 of the door inner panel 14. Then, the edge seal portion 40 and the third seal lip portion 38 double-stop water such as rainwater that has infiltrated from the door hole 16 into the gap between the door inner panel 14 and the cover member 18 on the door inner panel 14 side. This makes it possible to prevent water from infiltrating from the door hole 16 into the inside of the vehicle.

[0046] As described above, the edge seal portion 40 is configured to press the first seal lip portion 34 against the cover member 18 while being pressed against the peripheral edge of the door hole 16 of the door inner panel 14. Therefore, although the portion of the first seal lip portion 34 located on the edge of the portion of the groove 20 of the cover member 18 where the radius of curvature is small tends to rise up from the cover member 18, localized rising of the first seal lip portion 34 from the cover member 18 can be suppressed.

[0047] Therefore, according to the first embodiment, the water stoppage properties of the first seal lip portion 34 and the edge seal portion 40 are improved, and the sealing performance of the seal cover 10 (the sealing performance of the seal member 26) is improved.

[0048] [Embodiment 2] The second embodiment will be described with reference to Figs. 1, 2, and 7 to 9. Fig. 1 is a schematic diagram showing the structure of the interior side of an automobile door in which a seal cover according to the second embodiment is attached to a door inner panel. Fig. 2 is a schematic diagram showing the seal cover according to the second embodiment as viewed from the exterior side of the vehicle. Fig. 7 is a cross-sectional view of a seal member according to the second embodiment. Fig. 8 is a partial cross-sectional view of the seal cover according to the second embodiment, taken along line IV-IV in Fig. 2. Fig. 9 is a partial cross-sectional view of the seal cover according to the second embodiment, taken along line VV in Fig. 2.

[0049] (Outline of seal cover 44) 1 and 2, the seal cover 44 according to the second embodiment is a seal structure that is attached to the door inner panel 14 and prevents water such as rainwater from entering the inside of the vehicle through a door hole 16 formed in the door inner panel 14. Only the configuration of the seal cover 44 that differs from the configuration of the seal cover 10 (see FIG. 2) according to the first embodiment will be described. For ease of explanation, the same reference numerals will be used to refer to members having the same functions as those described in the first embodiment.

[0050] (Sealing member 46) 2, the seal cover 44 includes a string-like seal member 46 attached between the door inner panel 14 and the cover member 18 so as to surround the door hole 16. The specific configuration of the seal member 46 according to the second embodiment is as follows.

[0051] (Seal body 48) 7 to 9, the seal member 46 has a seal body 48 inserted (housed) in the groove 20 of the cover member 18, and the seal body 48 is made of solid rubber. Examples of vulcanized rubber constituting the solid rubber include EPDM, IR (isoprene rubber), CR (chloroprene rubber), styrene-butadiene rubber (SBR), and acrylonitrile-butadiene rubber (NBR).

[0052] A first retaining lip portion 50 is formed on the seal body 48 at a portion on the inner side of the seal (inside the door hole 16), and the first retaining lip portion 50 is pressed against the inner side wall of the groove 20 of the cover member 18 by its elastic force. A second retaining lip portion 52 is formed on the seal body 48 at a portion on the outer side of the seal, and the second retaining lip portion 52 is pressed against the outer side wall of the groove 20 of the cover member 18 by its elastic force. As a result, the seal body 48 is stably held in the groove 20 of the cover member 18.

[0053] A seal lip portion 54 is formed as a lip portion at the vehicle exterior end of the seal body 28 of the seal body 48, protruding toward the outside of the door hole 16 (the seal exterior). The seal lip portion 54 is pressed against the peripheral edge of the door hole 16 in the door inner panel 14 by its elastic force. In addition, a recessed portion 56 is formed from the vehicle exterior end, which is one end of the seal body 48, toward the door hole 16.

[0054] (Edge seal part 58) An edge seal portion 58 serving as a seal portion is provided in the recess 56 of the seal body 48, and a portion of the edge seal portion 58 is housed (inserted) in the groove 20 of the cover member 18. The edge seal portion 58 is made of sponge rubber, and examples of vulcanized rubber that constitutes the sponge rubber include EPDM, IR (isoprene rubber), CR (chloroprene rubber), styrene-butadiene rubber (SBR), and acrylonitrile-butadiene rubber (NBR). The edge seal portion 58 may be molded simultaneously with the seal body 48 by double extrusion molding.

[0055] The edge seal portion 58 is pressed against the peripheral edge of the door hole 16 of the door inner panel 14 by its elastic force. The edge seal portion 58 is also configured to be pressed against the peripheral edge (inner peripheral edge) on the door hole side of the groove 20 of the cover member 18 while being pressed against the peripheral edge of the door hole 16 of the door inner panel 14 by its elastic force.

[0056] (Action and effect) Next, the effects of the second embodiment will be described.

[0057] The edge seal portion 58 presses against the periphery of the door hole 16 of the door inner panel 14 while pressing against the inner periphery of the groove 20 of the cover member 18, and the seal lip portion 54 presses against the periphery of the door hole 16 of the door inner panel 14. Then, the edge seal portion 58 stops water that has infiltrated from the door hole 16 into the gap between the door inner panel 14 and the cover member 18 on the door inner panel 14 side and the cover member 18 side. In addition, the edge seal portion 58 and the seal lip portion 54 doubly stop water, such as rainwater, that has infiltrated from the door hole 16 into the gap between the door inner panel 14 and the cover member 18 on the door inner panel 14 side. This makes it possible to prevent water, such as rainwater, from infiltrating from the door hole 16 into the inside of the vehicle.

[0058] As described above, the recessed portion 56 is formed in the portion of the seal body 28 facing the door hole 16, and the edge seal portion 58 made of sponge rubber is provided in the recessed portion 56 of the seal body 28. A part of the edge seal portion 58 is accommodated in the groove 20 of the cover member 18. The edge seal portion 58 is configured to be in pressure contact with the inner peripheral portion of the groove 20 of the cover member 18 while being in pressure contact with the peripheral portion of the door hole 16 of the door inner panel 14. Therefore, even if a part of the edge seal portion 58 is located on the edge of the groove 20 of the cover member 18 at a portion where the radius of curvature is small, the part of the edge seal portion 58 does not lift up from the cover member 18. One end and the other end of the seal member 46 are sufficiently in close contact with each other at the connecting portion 22 of the groove 20 of the cover member 18.

[0059] Therefore, according to the second embodiment, the water-stopping property of the edge seal portion 58 is improved, and the sealing performance of the seal cover 44 (the sealing performance of the seal member 46) is improved.

[0060] Other Embodiments The configuration of the seal member 26 (46) may be applied to other seal structures other than the seal cover 10 (44). The other seal structures prevent fluid from entering through the opening of the mounting base or into the opening of the mounting base.

[0061] [Additional Notes] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of 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. [Explanation of symbols]

[0062] 10 Seal cover 12 Doors 14 Door inner panel (mounting base) 16 Door hole (opening) 18 Cover member 22 Connecting part 24 Intermediate Wall 26 Sealing material 28 Seal body 28c center line 30 First retaining lip 32 Second retaining lip 34 First seal lip portion (first lip portion) 36 Second seal lip part (second lip part) 38 Third seal lip part (third lip part) 40 Edge seal part (seal part) 42 Drainage hole 44 Seal cover 46 Sealing material 48 Seal body 50 First retaining lip 52 Second retaining lip 54 Seal lip part (lip part) 56 Recess 58 Edge seal part (seal part)

Claims

1. A seal cover to be attached to an inner door panel of an automobile, a cover member that covers the door hole from the inside of the vehicle and has a groove that is recessed toward the inside of the vehicle so as to surround the door hole of the door inner panel; a seal member attached between the door inner panel and the cover member so as to surround the door hole, The sealing member is a seal body that is inserted into the groove of the cover member and has a first lip portion that is pressed against a peripheral edge portion of the groove of the cover member on a side closer to the door hole and that protrudes toward the door hole at an outer end of the seal body; a seal portion provided at the vehicle exterior end of the seal body and configured to press against the peripheral edge of the door hole of the door inner panel while enveloping the first lip portion and pressing it against the cover member.

2. The seal cover according to claim 1, characterized in that a second lip portion is formed at the outer end of the seal body, which protrudes toward the opposite side of the door hole and presses against the peripheral edge of the groove of the cover member on the side farther from the door hole, and a third lip portion is formed at the base end of the second lip portion, which protrudes toward the opposite side of the door hole and presses against the peripheral edge of the door hole of the door inner panel.

3. A seal member is attached between a cover member and a mounting base to which the cover member is attached so as to surround an opening of the mounting base, a seal body that is inserted into a recess that is formed in the cover member so as to surround the opening of the mounting base, and has a first lip portion that is pressed against a peripheral edge portion of the recess of the cover member on a side close to the opening and protrudes toward the inside of the seal at one side end of the seal body; a seal portion provided at one side end of the seal body and configured to press against the peripheral edge of the opening of the mounting base while enveloping the first lip portion and pressing it against the cover member.

4. The seal member described in claim 3, characterized in that a second lip portion is formed at one side end of the seal body, which protrudes toward the outside of the seal and presses against the peripheral edge of the recess of the cover member on the side farther from the opening, and a third lip portion is formed at a base end of the second lip portion, which protrudes toward the outside of the seal and presses against the peripheral edge of the opening of the mounting base.

Images