Vehicle seal structure

The vehicle seal structure addresses thermal expansion issues by using a movable resin panel with a flexible seal member to maintain contact and seal gaps, enhancing sound insulation and reducing emissions.

JP7818341B2Active Publication Date: 2026-02-20HONDA MOTOR CO LTD
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Patent Information

Application Number
JP2023179980
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-10-19
Publication Date
2026-02-20
Estimated Expiration
2043-10-19

AI Technical Summary

Technical Problem

The thermal expansion mismatch between metal and resin panels in vehicle construction leads to panel deflection and compromised sound insulation, and existing solutions fail to adequately seal the gap between them.

Method used

A vehicle seal structure comprising a metal inner panel, a movable resin outer panel, and a seal member with specific lip configurations to manage thermal expansion and ensure sealing, using a flexible seal member with base, seal, inverted, and restraining lips to maintain contact and prevent water ingress.

Benefits of technology

The seal structure suppresses panel deflection and improves sound insulation while reducing the need for extensive painting, thereby lowering carbon dioxide emissions during manufacturing.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a seal structure for a vehicle which can restrain deflection from being generated and acoustic insulation from being deteriorated due to difference of thermal expansion coefficient caused by adopting an outer panel made of a resin in order to reduce amount of emission of carbon dioxide when manufacturing vehicles and furthermore as a result, to contribute to relaxation or influence reduction of climate change by simplifying paint application of an outer panel.SOLUTION: There are provided in a seal structure S1 for a vehicle an inner panel 20 made of a metal which composes a door D supported so as to make it possible to open / close an entrance opening on vehicle lateral face, an outer panel 30 made of a resin which is disposed on vehicle outside door surface of the inner panel 20 so as to make it possible to move along door surface of the inner panel 20 and a seal member 10 which is interposed between the inner panel 20 and the outer panel 30.SELECTED DRAWING: Figure 2
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Description

[Technical Field]

[0001] The present invention relates to a seal structure for a vehicle. [Background technology]

[0002] Efforts aimed at mitigating or reducing the impact of climate change have been ongoing for some time, and research and development into reducing carbon dioxide emissions is being carried out to achieve this. As part of these efforts, measures are being considered to simplify painting, such as reducing the number of times outer panels, which make up the design surface of a vehicle, are painted. For example, Patent Document 1 proposes a technique in which the inner panel of a vehicle remains made of metal, but the outer panel is replaced from metal to resin, and the inner panel and outer panel are joined together with an adhesive. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 6-340221 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the method proposed in Patent Document 1, since the thermal expansion coefficients of the metal inner panel and the resin outer panel are different, there is a risk that the outer panel will bend if it is bonded all around with adhesive. Therefore, it is conceivable to stop bonding the inner panel and outer panel and change to a configuration in which they are supported while allowing for thermal expansion using slide clips or the like. However, with such a configuration, the gap between the inner panel and the outer panel is not sealed, which may result in a deterioration in sound insulation.

[0005] The present invention has been made in consideration of the above-mentioned points, and aims to provide a sealing structure for a vehicle that can suppress the occurrence of deflection due to differences in thermal expansion coefficients that occur when using a resin outer panel, and the reduction in sound insulation. [Means for solving the problem]

[0006] In order to achieve the above object, the vehicle seal structure device according to the present invention comprises a metal inner panel constituting a door supported so as to be able to open and close an entrance / exit door, a resin outer panel disposed on a plate surface of the inner panel on the vehicle exterior side so as to be able to move along the door surface of the inner panel, and a seal member sandwiched between the inner panel and the outer panel. The seal member includes a base portion disposed on the inner panel, a seal lip extending from an outer wall constituting the base portion toward the outer panel and along the peripheral edge of the door surface of the outer panel, an inverted lip extending from a tip end of the seal lip toward the center of the door surface of the inner panel and obliquely erected relative to the inner panel, and a restraining lip positioned closer to the peripheral edge of the door surface than the inverted lip and erected from the base portion toward the outer panel. It is characterized by the fact that [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a vehicle seal structure that can suppress the occurrence of deflection due to differences in thermal expansion coefficients that occur when using a resin outer panel, and the reduction in sound insulation. Furthermore, by simplifying the painting of outer panels, carbon dioxide emissions during vehicle manufacturing can be reduced, which in turn contributes to mitigating or reducing the impact of climate change. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a vehicle in which a vehicle seal structure according to an embodiment of the present invention is disposed; [Figure 2] 2 is a cross-sectional view taken along line II-II in FIG. 1, showing the vehicle seal structure of the first embodiment. [Figure 3] 3 is an enlarged view of a main part of a portion III in FIG. 2, showing the seal structure for a vehicle according to the first embodiment. [Figure 4] 4 is a cross-sectional view taken along line IV-IV in FIG. 1, showing the vehicle seal structures of the first and second embodiments. [Figure 5] 1. FIG. 4 is a cross-sectional view taken along line VV in FIG. 1, showing a seal structure for a vehicle according to a third embodiment. [Figure 6] 10 is an enlarged view of a main portion of a portion similar to that of FIG. 3, showing a seal structure for a vehicle according to a fourth embodiment. [Figure 7] 10 is an enlarged view of a main portion of a portion similar to that of FIG. 3, showing a seal structure for a vehicle according to a fifth embodiment. [Figure 8] 4 is an enlarged view of a main portion of a portion similar to that of FIG. 3, showing a first modified example of the vehicle seal structure of the first embodiment. [Figure 9] 4 is an enlarged view of a main portion of a portion similar to that of FIG. 3, showing a second modified example of the vehicle seal structure of the first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] First Embodiment An embodiment of the present invention will be described in detail with reference to Figures 1-3 and the left side of Figure 4. In the description, the same elements are given the same reference numerals, and duplicated description will be omitted. The vehicle V is equipped with a front door DF that opens to the side of the vehicle and is supported so as to be able to open and close the front seat entrance / exit, and a rear door DR that opens to the side of the vehicle and is supported so as to be able to open and close the rear seat entrance / exit (see Figure 1). The vehicle seal structure S1 of this embodiment is provided at various locations around the door periphery. For example, the vehicle seal structure S1 is provided on the lower peripheral edge of the rear door DR and the rear peripheral edge of the front door DF (see Fig. 2-4).

[0010] The seal members 10 constituting the vehicle seal structure S1 of this embodiment and arranged on the lower peripheral edge of the rear door DR and the rear peripheral edge of the front door DF are separate members but have the same cross-sectional shape. That is, the rear peripheral edge of the front door DF is configured similarly to the lower peripheral edge of the rear door DR. Therefore, in this embodiment, the front door DF and the rear door DR are both referred to as door D, and the configuration of the peripheral portion thereof will be described.

[0011] The doors D are so-called hinged doors, and the front edges of the doors are supported by the front portions of the respective entrances via hinges (not shown), and the rear edges of the doors swing. The door D includes an inner panel 20 and an outer panel 30. In the vehicle seal structure S1 of this embodiment, the seal member 10 is disposed in a sandwiched state between the inner panel 20 and the outer panel 30, thereby sealing between the inner panel 20 and the outer panel 30. Hereinafter, the state in which the seal member 10 is sandwiched between the outer panel 30 and the inner panel 20 will be referred to as a "seal sandwiched state."

[0012] The inner panel 20 is formed by joining a plurality of metal plates together. The inner panel 20 is provided with a slide nut 21 protruding from a plate surface (hereinafter referred to as an inner outer surface 20a) facing the vehicle exterior. The outer panel 30 is made of a plate-like member made of resin, and is disposed on the inner outer surface 20a along the plate surface of the inner panel 20. The outer panel 30 also includes a general portion 31 and an extension portion 32 .

[0013] The general portion 31 extends in a direction along the door surface and constitutes the main body of the outer panel 30, and the plate surface on the vehicle exterior (hereinafter referred to as outer outer surface 30a) constitutes the design surface of the door D. The general portion 31 is provided with a slide rail 33 on a plate surface (hereinafter referred to as an outer inner surface 30b) on the vehicle interior side. The slide rail 33 has a rail portion 34 along which the slide nut 21 can move on the outer inner surface 30b.

[0014] The slide nut 21 is movable within the rail portion 34, so that the outer panel 30 is movable along the plate surface of the inner panel 20 on the inner outer surface 20a. Furthermore, since the outer panel 30 is movable on the inner panel 20, the occurrence of deflection due to the difference in thermal expansion coefficient between the inner panel 20 and the outer panel 30 is suppressed. The slide nuts 21 are disposed within the rail portions 34 and are linked together to hold the outer panel 30 on the inner outer surface 20a. The slide nut 21 is not joined to the inner panel 20 by welding or the like, but is arranged so as to be detachable from the inner panel 20. In other words, the slide nut 21 is temporarily assembled to the slide rail 33 and then installed on the inner panel 20 by screwing it onto a bolt 23 inserted into a bolt hole 22 opening in the inner panel 20.

[0015] The extension portion 32 has a generally trapezoidal cross section and is formed integrally with the general portion 31 along the periphery of the outer inner surface 30b as a ridge that protrudes from the outer inner surface 30b toward the vehicle interior. In other words, the extension 32 forms a step on the periphery of the outer inner surface 30b. The extension 32 prevents water that has entered the inside of the outer panel 30 from directly hitting the tightly contacted portion between the seal member 10 and the outer inner surface 30b.

[0016] Next, the seal member 10 will be described. The seal member 10 is made of a flexible and elastic material such as rubber. In the sealed sandwiched state, the seal member 10 adheres closely to the outer inner surface 30b and the inner outer surface 20a due to its restoring force, thereby providing a seal between the inner panel 20 and the outer panel 30. The seal member 10 includes a base portion 40 and a panel seal portion 50 .

[0017] The base portion 40 is composed of an outer wall 41, an inner wall 42, and a bottom wall 43, which are integrally formed. The outer wall 41 is disposed so as to extend along a direction from the peripheral edge side of the plate surface of the inner outer surface 20a toward the center side of the plate surface. Hereinafter, the peripheral side of the plate surface of the inner outer surface 20a will be referred to as the door surface peripheral side, and the central side of the plate surface will be referred to as the door surface central side. The direction from the peripheral edge of the door surface toward the center of the door surface is referred to as the door surface center peripheral direction. The outer wall 41 has a flat surface (hereinafter referred to as a base flat surface 44) at a portion facing the inner outer surface 20a. In the sealed state, the base flat surface 44 is in close contact with the outer surface of the inner member.

[0018] The inner wall 42 is disposed so as to extend along the central peripheral edge of the door surface of the vehicle interior plate surface of the inner panel 20 (hereinafter referred to as the inner inner surface 20b). The inner wall 42 is provided with a pair of base ribs 45 that protrude toward the inner panel 20 at a location facing the inner inner surface 20 b of the inner panel 20 . The bottom wall 43 integrally connects the peripheral edge of the outer wall 41 and the peripheral edge of the inner wall 42 .

[0019] The outer wall 41, the inner wall 42, and the bottom wall 43 of the base portion 40 form a cross section of a generally U-shaped groove. The base portion 40 is disposed on the inner panel 20 in a state in which the periphery of the inner panel 20 is enclosed within the U-shaped groove. The panel seal portion 50 includes a seal lip 51 , an inverted lip 52 , and a restraining lip 53 .

[0020] The seal lip 51 stands from the door surface center end of the outer wall 41 outward in the vehicle width direction toward the outer panel 30, and extends along the outer inner surface 30b toward the door surface periphery. That is, the seal lip 51, together with the outer wall 41 of the base portion 40, forms a cross section of a substantially V-shaped groove. The seal lip 51 has flexibility and elasticity, and in the seal sandwiching state, the surface on the outer panel side is brought into close contact with the outer inner surface 30b by its restoring force. The shape and dimensions of the seal lip 51 are set so that the tip of the seal lip 51 does not come into contact with the extension 32 of the outer panel 30 in the seal clamping state.

[0021] The inverted lip 52 extends from the tip of the seal lip 51 toward the inner panel 20 and obliquely stands toward the center of the door surface of the inner panel 20 . That is, the inverted lip 52 stands upright while forming an acute angle with the seal lip 51 . The shape and dimensions of the inverted lip 52 are set so that the tip of the inverted lip 52 abuts against and is held by the outer wall 41 of the base portion 40 in the seal clamping state.

[0022] The restraining lip 53 is located closer to the peripheral edge of the door surface than the inverted lip 52, and stands upright from the point where the outer wall 41 and bottom wall 43 of the base portion 40 are connected toward the boundary between the general portion 31 and the extension portion 32 of the outer panel 30. The shape and dimensions of the restraining lip 53 are set so that, in the sealed clamping state, its tip abuts and is held on the general portion 31 side of the boundary between the general portion 31 and the extension portion 32 .

[0023] Next, the function of the seal member 10 will be described. When the seal member 10 configured as described above is sandwiched between the outer panel 30 and the inner panel 20, a restoring force acts on the seal member 10 to return it to its original shape. This restoring force causes the outer wall 41 of the base portion 40 to come into close contact with the inner outer surface 20a of the inner panel 20, and the seal lip 51 to come into close contact with the outer inner surface 30b.

[0024] Furthermore, due to the restoring force, the tip of the inverted lip 52 abuts against the outer surface 41 a of the outer wall 41 , and the tip of the restraining lip 53 abuts against the outer inner surface 30 b of the general portion 31 . With each portion being in close contact and abutting against each other in this manner, the seal member 10 seals between the inner panel 20 and the outer panel 30. For example, when water seeps between the panels during rain or car washing, it is first blocked by the restraining lip 53 . Next, the water that cannot be blocked by the restraining lip 53 is blocked by the sealing lip 51 and the inverted lip 52 .

[0025] Furthermore, water that cannot be blocked by the inverted lip 52 is guided into the V-shaped groove between the seal lip 51 and the outer wall 41, moves within the V-shaped groove, and is discharged to the outside through a discharge portion (not shown). In addition, as a result of the restoring force acting, a component of the restoring force acts on the base portion 40 from the peripheral edge side of the door surface toward the center side of the door surface. This prevents the seal member 10 from falling off the inner panel 20. Furthermore, when the seal member 10 moves from the inner panel 20 toward the peripheral edge, the tip of the restraining lip 53 engages with the base of the extension 32, preventing it from falling off.

[0026] Next, the effects of this embodiment will be described. In the vehicle seal structure S1 of this embodiment, a seal member 10 is sandwiched between an inner panel 20 made of metal and an outer panel 30 made of resin. The outer panel 30 is disposed so as to be movable along the door surface of the inner panel 20. This allows for a difference in thermal expansion between the inner panel 20 and the outer panel 30, while ensuring sealing performance around the periphery of the door surface. In other words, it is possible to suppress the occurrence of deflection due to the difference in thermal expansion coefficient between the resin outer panel 30 and the inner panel 20, and the deterioration of sound insulation. Furthermore, since the sealing performance can be ensured, the painting of the inner panel 20 can be simplified by, for example, only applying an anti-rust paint. This will reduce carbon dioxide emissions during vehicle manufacturing, which will ultimately contribute to mitigating or reducing the impact of climate change.

[0027] In the vehicle seal structure S1 of this embodiment, the seal member 10 is made up of a base portion 40 and a panel seal portion 50. The base portion 40 has a cross section that is approximately U-shaped and is disposed within the U-shaped groove, encompassing the periphery of the inner panel 20 . In addition, in the seal sandwiched state, the panel seal portion 50 is in close contact with the outer inner surface 30b of the outer panel 30.

[0028] With this configuration, the periphery of the inner panel 20 is covered by the base portion 40, and therefore the periphery of the inner panel 20 can be prevented from being exposed to water and sunlight. This makes it possible to suppress the occurrence of rust on the periphery of the inner panel 20 and also to make any rust that does occur less noticeable. Furthermore, by enclosing the periphery of the inner panel 20 within the U-shaped groove of the base portion 40, the seal member 10 is fixed, and therefore, displacement of the panel seal portion 50 can be prevented. This improves the sealing performance between the inner panel 20 and the outer panel 30.

[0029] In the vehicle seal structure S1 of this embodiment, the seal lip 51 extends from the door surface central end of the outer wall 41 that constitutes the base portion 40 toward the outer panel 30, and along the door surface peripheral edge side of the outer panel 30. With this configuration, even if water seeps in between the panels during rain or when washing the car, the water is received by the V-shaped groove formed by the seal lip 51 and the outer wall 41. This makes it possible to prevent water from entering between the outer panel 30 and the inner panel 20 through the end of the seal lip 51. Furthermore, improved sealing performance can improve sound insulation.

[0030] In the vehicle seal structure S1 of this embodiment, the inverted lip 52 is erected obliquely with respect to the inner panel 20 from the tip end of the seal lip 51 toward the center of the door surface of the inner panel 20. With this configuration, the restoring force of the inverted lip 52 is applied to the tip of the seal lip 51. This improves the force with which the seal lip 51 adheres to the outer inner surface 30b, further improving the sealing performance. In addition, the reaction force that the seal lip 51 receives from the outer inner surface 30b pushes the outer wall of the base portion toward the center of the door surface through the inverted lip, increasing the pulling force and preventing the base portion 40 from moving toward the peripheral edge of the door surface. Furthermore, the force with which the seal lip 51 adheres to the outer inner surface 30b is improved, thereby improving sound insulation.

[0031] In the seal structure for a vehicle S1 of this embodiment, the restraining lip 53 is located closer to the peripheral edge of the door surface than the inverted lip 52. With this configuration, the restraining lip 53 acts as an obstacle, and the amount of water that enters the V-shaped groove formed by the sealing lip 51 and the outer wall 41 can be reduced.

[0032] In the seal structure for a vehicle S1 of this embodiment, the extension portion 32 is formed integrally with the general portion 31 along the circumferential direction on the peripheral edge of the outer inner surface 30b. The extension 32 has a generally trapezoidal cross section and is a ridge that projects from the outer inner surface 30b toward the vehicle interior, forming a step on the periphery of the outer inner surface 30b. The tip of the seal lip 51 abuts against the general portion 31 at the boundary between the general portion 31 and the extension portion 32 . With this configuration, when it rains or when washing the car, strong water hits the extension portion 32 instead of hitting the tip of the seal lip 51, thereby achieving higher sealing performance.

[0033] Second Embodiment Next, a vehicle seal structure S2 according to a second embodiment will be described in detail with reference to the right side of FIG. The vehicle seal structure S2 of this embodiment is arranged to provide a seal between the rear edge of the front door DF and the front edge of the rear door DR at the center pillar portion of the vehicle V. In the description, the same elements as those in the first embodiment are denoted by the same reference numerals, and duplicated descriptions will be omitted.

[0034] In the seal structure for a vehicle S2 of this embodiment, the configuration of the outer panel 30 and the configuration of the seal member 10 are different from those of the first embodiment. The outer panel 30 of this embodiment does not include the extension portion 32 and has only the general portion 31. That is, the peripheral edge portion of the outer inner surface 30 b is a flat surface that continues from the general portion 31 . The seal member 10 also includes an inter-panel seal 54 . In this embodiment, the outer panel 30 of the front door DF serves as the exterior panel PF adjacent to the outer panel 30 of the rear door DR.

[0035] The inter-panel seal 54 extends from the tip of the seal lip 51 toward the peripheral edge of the door surface. In the seal sandwiched state, the seal lip 51 is in close contact with the outer inner surface 30b, and the inter-panel seal 54 is in contact with the extension 32 of the adjacent exterior panel PF (outer panel 30 of the front door DF) due to its restoring force. In other words, by providing the inter-panel seal 54, the gap between the outer panel 30 and the exterior panel PF is closed. By closing this gap, direct sunlight entering the inner panel 20 and the inside of the door D through the gap is blocked, and the intrusion of rainwater and the like is suppressed. In addition, in order to provide the inter-panel seal 54, the inverted lip 52 and the restraining lip 53 have been modified.

[0036] The inverted lip 52 is modified so as to extend from the middle of the inter-panel seal 54 toward the inner panel 20 and stand obliquely against the inner panel 20 toward the center of the door surface of the inner panel 20. The restraining lip 53 is modified so that its tip abuts against the inner surface of the tip of the inter-panel seal 54 when the seals are sandwiched. In the seal sandwiched state, the restraining lip 53 is flexibly deformed, and the restoring force of the restoring lip 53 causes the inter-panel seal 54 to abut more firmly against the adjacent exterior panel PF.

[0037] As described above, this embodiment can achieve the same effects as the first embodiment. Moreover, with this configuration, it is possible to ensure sealing between the outer panel 30 and the adjacent exterior panel PF without increasing the number of parts. In other words, by providing the inter-panel seal 54, direct sunlight that penetrates into the inner panel 20 and the inside of the door D through the gap between the outer panel 30 and the exterior panel PF is blocked, and the intrusion of rainwater and the like is suppressed. This prevents deterioration over time of the paint on the inner panel 20 and the interior of the door D, so that the required weather resistance can be fully achieved with a simplified paint. In addition, simplifying the painting process will reduce carbon dioxide emissions during vehicle manufacturing, which will ultimately contribute to mitigating or reducing the impact of climate change.

[0038] Third Embodiment Next, a vehicle seal structure S3 according to a third embodiment will be described in detail with reference to FIG. In the description, the same elements as those in the first embodiment are denoted by the same reference numerals, and duplicated descriptions will be omitted. The vehicle seal structure S3 of this embodiment is arranged to provide a seal between the front door DF and the front fender FF at the front edge of the front door DF.

[0039] The outer panel 30 of the front fender FF serves as an exterior panel PF adjacent to the outer panel 30 of the front door DF. Moreover, the vehicle seal structure S3 of this embodiment has a configuration of the inter-panel seal 55 that corresponds to a configuration in which the outer panel 30 has the extension portion 32. The configurations of the base portion 40, the sealing lip 51, the inverted lip 52, and the restraining lip 53 are the same as those in the first embodiment.

[0040] The seal member 10 also includes an inter-panel seal 55 . The inter-panel seal 55 includes a contact portion 56 , a resilient contact portion 57 , and a constricted portion 58 . The contact portion 56 has a generally L-shaped cross section and stands upright from the bottom wall 43 of the base portion 40 toward the extension portion 32 of the outer panel 30 . The tip of the contact portion 56 is formed into a flat surface that can come into close contact with the end surface of the extension portion 32. The elastic contact portion 57 extends from the abutting portion 56 toward the peripheral edge of the door surface toward the adjacent exterior panel PF (front fender FF), and is in elastic contact with the inner surface of the exterior panel PF.

[0041] The constricted portion 58 is a portion set between the contact portion 56 and the elastic contact portion 57 where the thickness is small. When the front door DF is closed, the constricted portion 58 bends to maintain a seal between the contact portion 56 and the extension portion 32, and between the elastic contact portion 57 and the adjacent exterior panel PF. When water is sprayed with great force between the outer panel 30 and the front fender FF with the front door DF closed, the contact part 56 is kept in contact with the end face of the extension part 32 by bending at the constricted part 58. In other words, by providing the inter-panel seal 55, the gap between the outer panel 30 and the exterior panel PF is closed. By closing this gap, direct sunlight entering the inner panel 20 and the inside of the door D through the gap is blocked, and the intrusion of rainwater and the like is suppressed.

[0042] As described above, this embodiment can achieve the same effects as the second embodiment. Furthermore, with this configuration, when strong water is sprayed between the outer panel 30 and the adjacent exterior panel PF during rainfall or when washing the car, the inter-panel seal 55 flexes and elastically deforms at the constricted portion 58. This allows the abutting portion 56 to maintain contact with the end face of the extension portion 32, thereby achieving a higher seal between the outer panel 30 and the inner panel 20.

[0043] In other words, by providing the inter-panel seal 55, direct sunlight that penetrates into the inner panel 20 and the inside of the door D through the gap between the outer panel 30 and the exterior panel PF is blocked, and the intrusion of rainwater and the like is suppressed. This prevents deterioration over time of the paint on the inner panel 20 and the interior of the door D, so that the required weather resistance can be fully achieved with a simplified paint. In addition, simplifying the painting process will reduce carbon dioxide emissions during vehicle manufacturing, which will ultimately contribute to mitigating or reducing the impact of climate change.

[0044] <Fourth embodiment> Next, a vehicle seal structure S4 according to a fourth embodiment will be described in detail with reference to FIG. In the description, the same elements as those in the first embodiment are denoted by the same reference numerals, and duplicated descriptions will be omitted. The seal structure for a vehicle S4 of this embodiment differs from that of the first embodiment in the configuration of the panel seal portion 50. The panel seal portion 50 of this embodiment has a hollow seal 59 formed in a cylindrical shape with an oval cross section. In the sandwiched seal state, the hollow seal 59 is compressed in its cylindrical shape and comes into close contact with the outer inner surface 30b, thereby sealing the gap between the inner panel 20 and the outer panel 30. With this configuration, it is possible to achieve the same effects as in the first embodiment.

[0045] Fifth Embodiment Next, a vehicle seal structure S5 according to a fifth embodiment will be described in detail with reference to FIG. In the description, the same elements as those in the first embodiment are denoted by the same reference numerals, and duplicated descriptions will be omitted. The seal structure for a vehicle S5 of this embodiment differs from that of the first embodiment in the configuration of the panel seal portion 50. The panel seal portion 50 of this embodiment uses a sponge-like member made of foam rubber such as EPT SEALER (registered trademark). In the sandwiched seal state, the foam rubber of the panel seal portion 50 is crushed and comes into close contact with the outer inner surface 30b, thereby sealing the gap between the inner panel 20 and the outer panel 30. With this configuration, it is possible to achieve the same effects as in the first embodiment.

[0046] In the first to fifth embodiments described above, the panel seal portion 50 is configured to be arranged on the periphery of the inner panel 20 via a base portion 40 having an approximately U-shaped cross section, but this is not limited to such a configuration. For example, the base portion 40 may have a flat plate shape consisting of only the outer wall 41, and may be attached to the inner panel 20 using various means such as clips, bolts, double-sided tape, and adhesive (see FIG. 8). Even in this configuration, the same effects as those described above can be achieved. It is also possible to use various means such as clips, bolts, double-sided tape, and adhesives to install the panel seal portion 50 directly on the inner panel 20 without using the base portion 40 (see Figure 9). Even in this configuration, the same effects as those described above can be achieved. [Explanation of symbols]

[0047] S1, S2, S3, S4, S5 Vehicle seal structure PF exterior panel 10 Sealing material 20 Inner panel 30 outer panel 31 General section 32 Extension 40 Base 50 Panel seal 51 Seal lip 52 Inverted Lip 53 Suppression Lip 54,55 Panel seal

Claims

1. a metal inner panel that constitutes a door supported so that the boarding / alighting door can be opened and closed; a resin outer panel disposed on a vehicle exterior plate surface of the inner panel so as to be movable along a door surface of the inner panel; a seal member sandwiched between the inner panel and the outer panel; Equipped with The sealing member is a base portion disposed on the inner panel; a seal lip extending from an outer wall constituting the base portion toward the outer panel and along a peripheral edge of the door surface of the outer panel; an inverted lip extending obliquely from the tip of the seal lip toward the center of the door surface of the inner panel; a restraining lip located closer to the door surface periphery than the inverted lip and extending from the base portion toward the outer panel; Equipped with A vehicle seal structure characterized by:

2. The vehicle seal structure according to claim 1, The seal lip is in close contact with the inner surface of the outer panel when the seal member is sandwiched between the inner panel and the outer panel. A vehicle seal structure characterized by:

3. The vehicle seal structure according to claim 1, The sealing member is The outer panel is provided with inter-panel seals 54, 55 that are in close contact with the outer panel and are in close contact with the exterior panel adjacent to the outer panel. A vehicle seal structure characterized by:

4. The vehicle seal structure according to claim 1, The base portion The inner panel has a cross section having a substantially U-shaped groove shape, and is disposed so that the periphery of the inner panel is enclosed within the U-shaped groove. A vehicle seal structure characterized by:

5. A metal inner panel that constitutes a door supported so that the boarding / alighting door can be opened and closed; a resin outer panel disposed on a vehicle exterior plate surface of the inner panel so as to be movable along a door surface of the inner panel; a seal member sandwiched between the inner panel and the outer panel; Equipped with The sealing member is a base portion disposed on the inner panel; a seal lip extending from an outer wall constituting the base portion toward the outer panel and along a peripheral edge of the door surface of the outer panel; Equipped with The outer panel is a general part that constitutes the main body of the panel; an extension portion formed integrally with the general portion as a protrusion protruding from a plate surface of the general portion on the vehicle interior side toward the vehicle interior side; Equipped with The sealing lip is The tip of the door abuts closer to the center of the door surface than the extension of the general part. A vehicle seal structure characterized by:

6. The vehicle seal structure according to claim 1 or claim 5, The sealing member is The seal member has a cylindrical cross section and is provided with a hollow seal that is in close contact with the inner surface of the outer panel when the seal member is sandwiched between the inner panel and the outer panel. A vehicle seal structure characterized by:

Citation Information

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