Door hole seal

Abstract

To reduce abnormal noise caused by vibration of a door hole seal.SOLUTION: A door hole seal (1) includes: a first sheet (10) formed with a slit (10A); and a second sheet (20) which covers the slit (10A) from the outer side of a vehicle. In the second sheet (20), a specific region (24) including at least a portion overlapping with the slit (10A) to a vertical lower side end (23) in the second sheet (20) is formed of a rubbery elastic body.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a door hole seal. [Background technology]

[0002] Door hole seals are used to close service holes formed in the inner door panels of vehicle doors. For example, Patent Document 1 discloses a vehicle body structure in which a sub-sheet covers a slit formed in a service hole cover that closes the service hole. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-51459 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional technology described above, the sub-seat may vibrate due to the influence of sound pressure from a speaker installed in the vehicle, etc. In this case, there is a problem that abnormal noise may be generated due to the vibration of the sub-seat.

[0005] An object of one aspect of the present invention is to provide a door hole seal capable of reducing abnormal noise caused by vibration of the door hole seal. [Means for solving the problem]

[0006] In order to solve the above problems, a door hole seal according to one embodiment of the present invention is a door hole seal attached to a door inner panel of a vehicle door, and comprises: a first sheet that covers a service hole in the door inner panel, the service hole having a slit through which a wire harness is inserted; and a second sheet that covers the slit from the outside of the vehicle while allowing the wire harness to be inserted into the slit, and the second sheet is configured such that at least a specific area including from the portion overlapping the slit to the vertically lower end of the second sheet is formed of a rubber-like elastic material.

[0007] According to the above configuration, at least a specific region of the second sheet from the portion overlapping with the slit to the vertically lower end of the second sheet is made of a rubber-like elastic material, so that the second sheet is less likely to vibrate than when the second sheet is made of a material other than a rubber-like elastic material, and abnormal noise caused by the vibration of the second sheet can be reduced.

[0008] In addition, a door hole seal according to one embodiment of the present invention may be configured such that the second sheet has an adhesive portion formed on one side of the second sheet and adhered to the first sheet, and the second sheet is adhered to the first sheet by the adhesive portion formed at least in an upper portion located vertically above the slit and a lateral portion continuing from the upper portion to a vertically lower end of the slit on at least one of the front and rear sides of the vehicle.

[0009] According to the above configuration, the second sheet is adhered to the first sheet by adhesive portions formed on the upper and side portions, thereby effectively preventing rainwater, etc. from entering the inside of the vehicle through the slit from above or the side.

[0010] In addition, the door hole seal according to one embodiment of the present invention may be configured such that at least a portion of the specific area of ​​the second sheet is folded back with the adhesive portions facing inward, and the adhesive portions are adhered to each other.

[0011] According to the above configuration, at least a part of the specific region of the second sheet is folded back with the adhesive portion facing inward, and the adhesive portions are bonded to each other. Therefore, it is not necessary to perform a complicated process to make it possible to insert the wire harness. Specifically, for example, it is not necessary to form an adhesive portion only in a portion of the second sheet other than the specific region, or to align and bond another member to the specific region and reduce the adhesiveness of the specific region of the second sheet. Therefore, the door hole seal can be easily manufactured.

[0012] In addition, the door hole seal according to one aspect of the present invention may be configured such that the second sheet is folded back from the vertically lower side toward the portion overlapping with the slit. According to the above configuration, the second sheet is folded back from the vertically lower side toward the portion overlapping with the slit. Therefore, the wire harness inserted into the slit is covered by the second sheet 20 on the outer side of the vehicle than the first sheet. Therefore, it is possible to effectively prevent rainwater and the like from entering through the slit from the outer side of the vehicle.

[0013] In addition, in the door hole seal according to one aspect of the present invention, the rubber-like elastic body may be a foam. With the above configuration, since the rubber-like elastic body is a foam, the second sheet is less likely to vibrate, and noise caused by the vibration of the second sheet can be further reduced.

[0014] In the door hole seal according to one aspect of the present invention, the rubber-like elastic body may be ethylene propylene diene rubber. With the above configuration, since the rubber-like elastic body is ethylene propylene diene rubber, the second seat is less likely to vibrate, and noise caused by the vibration of the second seat can be further reduced.

[0015] In addition, in the door hole seal according to one aspect of the present invention, the rubber-like elastic body may be a thermoplastic elastomer. With the above configuration, since the rubber-like elastic body is a thermoplastic elastomer, the second seat is less likely to vibrate, and noise caused by the vibration of the second seat can be further reduced. Effect of the Invention

[0016] According to one aspect of the present invention, a door hole seal capable of reducing abnormal noise caused by vibration of the door hole seal can be realized. [Brief description of the drawings]

[0017] [Figure 1] 1 is a diagram showing the structure of a vehicle interior side of a door inner panel to which a door hole seal according to a first embodiment of the present invention is attached. [Diagram 2] 2 is a schematic diagram showing the structure of the door hole seal shown in FIG. 1 on the vehicle exterior side. FIG. [Diagram 3] 3 is a cross-sectional view of the door hole seal shown in FIG. 2 taken along line AA. [Figure 4] 3 is a schematic diagram of a second sheet material for producing the second sheet shown in FIG. 2. FIG. [Diagram 5] 3 is a schematic diagram showing a structure of a modified example of the door hole seal shown in FIG. 2 on the vehicle exterior side. FIG. [Figure 6] 6 is a cross-sectional view of the door hole seal shown in FIG. 5 taken along line AA. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] [Embodiment 1] Hereinafter, one embodiment of the present invention will be described in detail.

[0019] <Door hole seal installation example> First, a door inner panel D3 of a vehicle door to which a door hole seal 1 according to one embodiment of the present invention is attached will be described with reference to Fig. 1. In the example of Fig. 1, the upper side as viewed from the surface of the paper corresponds to the vertical upper side, the lower side corresponds to the vertical lower side, the left side corresponds to the front side (front side), the right side corresponds to the rear side (rear side), the near side corresponds to the vehicle inner side (inside of the vehicle), and the far side corresponds to the vehicle outer side (outside of the vehicle).

[0020] As shown in Fig. 1, a door that is provided in an openable and closable manner in a door opening of a vehicle includes a door outer panel (not shown) and a door inner panel D3. A service hole D3A is formed in the door inner panel D3 so that a repair worker can insert his / her hand or tools to repair a part inside the door, for example. In the example of Fig. 1, the service hole D3A is formed in the front portion of the door inner panel D3.

[0021] The door inner panel D3 is also formed with a speaker opening D3B through which sound emitted from a speaker (not shown) inside the door passes. In the example of Fig. 1, the speaker opening D3B is formed in the front and lower part of the door inner panel D3, below the service hole D3A. The closer a member is to the speaker opening D3B, the more it is affected by the sound pressure of the speaker, and therefore the more likely it is to vibrate.

[0022] A door hole seal 1 is attached to the door inner panel D3. The door hole seal 1 blocks a service hole D3A and the like formed in the door inner panel D3 from the inside of the vehicle, thereby preventing rainwater and the like that has entered between the door glass (not shown) and the door outer panel from entering further into the vehicle through the service hole D3A.

[0023] The door hole seal 1 is formed with a slit 10A through which the wire harness D5 is inserted. The wire harness D5 is also called a cable, and can supply electricity to devices inside the door, such as a speaker and a window regulator. Alternatively, the wire harness D5 does not have to supply electricity, and may be, for example, a device that transmits physical force between the inside and outside of the door.

[0024] The above-described installation of the door hole seal 1 is merely an example, and the service hole D3A closed by the door hole seal 1 may be formed in the rear portion of the door inner panel D3. The type of the vehicle door to which the door hole seal 1 according to one embodiment of the present invention is to be installed is not limited. Therefore, the door hole seal 1 may be installed in, for example, a front door (not shown) or a rear door (not shown). The type of the automobile to which the door hole seal 1 according to one embodiment of the present invention is to be installed is not limited, and may be a hardtop car or a convertible car.

[0025] <Door hole seal 1 structure> Next, the structure of the door hole seal 1 will be described with reference to Fig. 1 to Fig. 3. The door hole seal 1 includes a first sheet 10 and a second sheet 20. In the example of Fig. 2, the right side as viewed from the page corresponds to the front side, and the left side corresponds to the rear side. In the example of Fig. 3, the left side as viewed from the page corresponds to the outside side of the vehicle, and the right side corresponds to the inside side of the vehicle.

[0026] As shown in Fig. 1, the first seat 10 is attached to the door inner panel D3 and closes the service hole D3A. The first seat 10 has a slit 10A through which the wire harness D5 is inserted. In the example of Fig. 1, the slit 10A is formed on the front and upper side of the first seat 10 so as to extend in the front-rear direction.

[0027] Examples of materials for the first sheet 10 include elastomers, resins, and composites containing these materials. Examples of elastomers include rubber and thermoplastic elastomers (TPEs). Examples of rubber include ethylene propylene diene rubber (EPDM) and urethane rubber, and examples of TPEs include olefin-based thermoplastic elastomers (TPOs). TPOs are composites in which TPEs as soft segments are mixed with resins such as PE (polyethylene) or PP (polypropylene) as hard segments.

[0028] Examples of the resin constituting the first sheet 10 include PE (polyethylene), PP (polypropylene), PVA (polyvinyl alcohol), ABS (acrylonitrile butadiene styrene), etc. Furthermore, the material of the first sheet 10 may be used in the form of a foam or a fiber aggregate.

[0029] The second sheet 20 covers the slit 10A from the vehicle exterior side. As shown in Fig. 2 and Fig. 3, the second sheet 20 includes a main body portion 21 and a folded-back portion 22. The main body portion 21 and the folded-back portion 22 are continuous at a lower end portion (vertically lower end) 23 of the second sheet 20. In other words, the second sheet 20 is folded back at the lower end portion 23.

[0030] In this embodiment, the entire second sheet 20 is formed of a rubber-like elastic material, which will be described later. However, the present invention is not limited to this, and it is sufficient that at least the specific region 24, which includes the portion overlapping with the slit 10A to the lower end 23, is formed of a rubber-like elastic material. Note that when the entire second sheet 20 is formed of a rubber-like elastic material, it is preferable because the second sheet 20 is easier to manufacture than when only the specific region 24 is formed of a rubber-like elastic material.

[0031] A body-side adhesive portion 211 is formed on the vehicle interior surface (one surface) of body portion 21, and a body-side non-adhesive portion 212 is formed on the vehicle exterior surface of body portion 21. A fold-back side adhesive portion 221 is formed on the vehicle exterior surface of folded-back portion 22, and a fold-back side non-adhesive portion 222 is formed on the vehicle interior surface of folded-back portion 22. Body-side adhesive portion 211 and fold-back side adhesive portion 221 are adhered to each other. In this specification, "adhesion" includes the concept of "sticking."

[0032] 2, the vertical and front-rear lengths of main body 21 are longer than the vertical and front-rear lengths of folded-back portion 22. Fold-back portion 22 is a lower portion of main body 21 and is bonded near the center in the front-rear direction.

[0033] The main body 21 includes an upper portion 213, a front portion (side portion) 214, and a rear portion (side portion) 215. The upper portion 213 is located above the slit 10A. The front portion 214 is continuous from the upper portion 213 to the lower end 23 on the front side of the slit 10A. The rear portion 215 is continuous from the upper portion 213 to the lower end 23 on the rear side of the slit 10A.

[0034] The folded-back portion 22 is not adhered to the upper portion 213, the front portion 214, and the rear portion 215. Therefore, the second sheet 20 is adhered to the first sheet 10 by the main body side adhesive portion 211 formed at least in the upper portion 213, the front portion 214, and the rear portion 215. Note that the present invention is not limited to this, and the second sheet 20 may be adhered to the first sheet 10 by the main body side adhesive portion 211 formed in the upper portion 213 and at least one of the front portion 214 and the rear portion 215.

[0035] In this embodiment, the upper end of the folded-back portion 22 is located above at least a part of the slit 10A. The front end of the folded-back portion 22 is located behind the front part of the slit 10A, and the rear end of the folded-back portion 22 is located ahead of the rear part of the slit 10A. Therefore, at least a part of the specific region 24 of the second sheet 20 is folded back with the main body side adhesive portion 211 and the folded-back side adhesive portion 221 facing inward, and the main body side adhesive portion 211 and the folded-back side adhesive portion 221 are adhered to each other. The second sheet 20 is also folded back from the lower side toward the part overlapping with the slit 10A.

[0036] The second sheet 20 is adhered to the first sheet 10 so that the folded-back side non-adhesive portion 222 faces the slit 10A. Therefore, the second sheet 20 is adhered to the first sheet 10 so as not to close the slit 10A. In other words, the second sheet 20 covers the slit 10A from the outside of the vehicle while allowing the wire harness D5 to be inserted through the slit 10A.

[0037] In the second sheet 20, a specific region 24 including a portion overlapping with the slit 10A to a lower end 23 is formed of a rubber-like elastic body. Examples of the rubber-like elastic body include elastomers and composites containing elastomers. Examples of the elastomers include rubbers such as EPDM and urethane rubber, and TPEs, and an example of the TPEs is TPO.

[0038] The rubber-like elastic body forming the specific region of the second sheet 20 is preferably a foam, and more preferably a rubber-like elastic body obtained by foaming an elastomer or a composite containing an elastomer. In this case, the second sheet is less likely to vibrate, and abnormal noise caused by the vibration of the second sheet can be further reduced.

[0039] <Door hole seal manufacturing method> As shown in Fig. 4, the second sheet 20 constituting the door hole seal 1 is manufactured from a second sheet material 30. The second sheet material 30 includes a main body portion 31 and a folded-back portion 32. In the example of Fig. 4, the state in which the main body portion 31 is attached to the door inner panel D3 (shown in Fig. 1) is considered as a reference, and the upper side as viewed from the page is the vertically upper side, the lower side is the vertically lower side, the left side is the front side, and the right side is the rear side.

[0040] The main body portion 31 and the folded-back portion 32 are continuous. The boundary between the main body portion 31 and the folded-back portion 32 is defined as a folding line 33. The main body portion 31, the folded-back portion 32, and the folding line 33 of the second sheet material 30 correspond to the main body portion 21, the folded-back portion 22, and the lower end portion 23 of the second sheet 20, respectively. In order to effectively reduce abnormal noise caused by vibration of the second sheet 20, the thickness of the second sheet material 30 is preferably 1 mm or more, more preferably 2 mm or more, and even more preferably 3 mm or more.

[0041] A body-side adhesive portion 311 and a folded-back side adhesive portion 321 are formed on the surfaces (one side) of the body portion 31 and the folded-back portion 32 facing the paper surface, respectively. A body-side non-adhesive portion 312 and a folded-back side non-adhesive portion 322 are formed on the surfaces (one side) of the body portion 31 and the folded-back portion 32 facing the paper surface, respectively.

[0042] A notch 32A is formed by cutting out from the front-rear direction at a portion of the fold-back portion 32 that is continuous with the fold-back line 33. The notch 32A functions as a marker when folding back the second sheet material 30 at the fold-back line 33. This allows the worker to fold back the second sheet material 30 at the fold-back line 33 easily and accurately.

[0043] When manufacturing the door hole seal 1, first, the folded-back portion 32 of the second sheet material 30 is folded from the lower side to the upper side along the folding line 33, and the main body side adhesive portion 311 and the folded-back side adhesive portion 321 are adhered to each other to manufacture the second sheet 20. Then, the second sheet 20 is adhered to the first sheet 10 so that the folded-back side non-adhesive portion 222 of the second sheet 20 faces the slit 10A, thereby manufacturing the door hole seal 1.

[0044] <Action and effect> According to the above configuration, at least a specific region of second sheet 20 from the portion overlapping with slit 10A to lower end 23 is formed of a rubber-like elastic material. Therefore, second sheet 20 is less likely to vibrate than when the second sheet is formed of a material other than a rubber-like elastic material, and abnormal noise caused by vibration of second sheet 20 can be reduced.

[0045] Furthermore, when the rubber-like elastic material forming at least a part of the second sheet 20 is a foam, the second sheet 20 is less likely to vibrate, and it is possible to further reduce abnormal noise caused by the vibration of the second sheet 20. Furthermore, when the rubber-like elastic material is a thermoplastic elastomer, particularly when it is ethylene propylene diene rubber, the second sheet 20 is less likely to vibrate, and it is possible to further reduce abnormal noise caused by the vibration of the second sheet 20.

[0046] Furthermore, when slit 10A is located near speaker opening D3B and second sheet 20 covering slit 10A is strongly affected by the sound pressure of a speaker (not shown), vibration of second sheet 20 is likely to occur. However, even in such a case, according to the above configuration, since specific region 24 of second sheet 20 is formed of a rubber-like elastic material, vibration of second sheet 20 can be effectively reduced. Therefore, abnormal noise caused by vibration of second sheet 20 can be effectively reduced.

[0047] In addition, the second sheet 20 is adhered to the first sheet 10 by main body side adhesive parts 211 formed on the upper part 213 and at least one of the front part 214 and the rear part 215. This effectively prevents rainwater and the like from entering the inside of the vehicle through the slit 10A from above or the side of the slit 10A.

[0048] In addition, at least a part of the specific region 24 in the second sheet 20 is folded back with the main body side adhesive portion 211 and the folded back side adhesive portion 221 facing inward, and the main body side adhesive portion 211 and the folded back side adhesive portion 221 are adhered to each other. Therefore, it is not necessary to perform a complicated process to make it possible to insert the wire harness D5. Specifically, for example, it is not necessary to form an adhesive portion only in a portion of the second sheet 20 other than the specific region 24, or to align and adhere another member to the specific region 24 and reduce the adhesiveness of the specific region 24 of the second sheet 20. Therefore, the door hole seal 1 can be easily manufactured.

[0049] In addition, the second sheet 20 is folded back from the lower side toward the portion overlapping with the slit 10A. Therefore, on the vehicle outer side of the first sheet 10, the wire harness D5 inserted through the slit 10A is covered by the second sheet 20. This effectively prevents rainwater and the like from entering through the slit 10A from the vehicle outer side.

[0050] <Modification> In this embodiment, the second sheet 20 is adhered to the first sheet 10. However, the present invention is not limited to this, and the second sheet may be welded to the first sheet 10. For example, the second sheet may be ultrasonically welded to the first sheet 10.

[0051] In this embodiment, the second sheet 20 is manufactured by folding back the fold-back portion 32 of the second sheet material 30 and adhering it to the main body portion 31. However, the present invention is not limited to this, and it is sufficient that the second sheet 20 can cover the slit 10A from the exterior side of the vehicle while allowing the wire harness D5 to be inserted through the slit 10A.

[0052] For example, an adhesive portion may be formed only in a portion of the second sheet 20 other than the specific region 24. Alternatively, the adhesiveness of the specific region 24 of the second sheet 20 may be reduced by adhering a member different from the second sheet 20 to the specific region 24 of the second sheet 20.

[0053] As shown in Figs. 5 and 6, a third sheet 40 for reinforcing the periphery of the slit 10A may be adhered or welded to the first sheet 10. In Fig. 5, the third sheet 40 is set below the slit 10A and approximately parallel to the slit 10A. The third sheet 40 may be formed of a film made of a resin such as PE (polyethylene) or PP (polypropylene), or a foam made of a rubber-like elastic body of the same material as the second sheet 20. It is preferable that the length of the third sheet 40 in the direction parallel to the long axis direction of the slit 10A is set longer than the length of the long axis direction of the slit 10A. In this way, the second sheet 20 is not broken when the wire harness D5 is inserted into the slit 10A.

[0054] 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]

[0055] 1 Door Hole Seal 10 Sheet 1 10A Slit 20 2nd Sheet 23 Lower end (vertical lower end) 24 Specific areas 40 3rd Sheet 211 Body side adhesive part (adhesive part) 213 Upper part 214 Front part (side part) 215 Posterior part (lateral part) 221 Folded side adhesive part (adhesive part) D3 Door inner panel D3A Service Hall D5 Wire Harness

Claims

1. A door hole seal to be attached to an inner panel of a vehicle door, comprising: a first sheet for covering a service hole of the door inner panel, the service hole having a slit through which a wire harness is inserted; a second sheet that covers the slit from the outside of the vehicle in a state in which the wire harness can be inserted into the slit, The second sheet is At least a specific region including a portion overlapping with the slit to a vertically lower end of the second sheet is formed of a rubber-like elastic material, The second sheet has an adhesive portion formed on one surface thereof and adhered to the first sheet, the first sheet is bonded to the first sheet by the adhesive portion formed at least in an upper portion located vertically above the slit and a lateral portion continuing from the upper portion to a vertically lower end on at least one of the front side and the rear side of the vehicle with respect to the slit, A door hole seal, characterized in that at least a portion of the specific region of the second sheet is folded back with the adhesive portions facing inward, and the adhesive portions are adhered to each other.

2. The door hole seal according to claim 1, wherein the second sheet is folded back from a vertically lower side toward a portion overlapping the slit.

3. 3. The door hole seal according to claim 1, wherein the rubber-like elastic body is a foam.

4. 4. The door hole seal according to claim 1, wherein the rubber-like elastic body is an ethylene propylene diene rubber.

5. 4. The door hole seal according to claim 1, wherein the rubber-like elastic body is a thermoplastic elastomer.

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