Roof weatherstrip mounting structure

By using a U-shaped cross-section sunroof sealing strip and an L-shaped mounting base in the vehicle's open-closable roof structure, combined with the inclined panel design and the protruding snap structure, the problems of insufficient head space and water leakage of sealing strips are solved, achieving convenient installation and stable sealing effect.

JP2025019452APending Publication Date: 2025-02-07TOYODA GOSEI CO LTD +1
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
JP2023123071
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-07-28
Publication Date
2025-02-07

AI Technical Summary

Technical Problem

In the open-closable roof structure of the vehicle, the head space is insufficient, which is especially inconvenient for tall passengers. In the prior art, the sunroof seal strips that use double-sided adhesive bonds are prone to fall off, resulting in water leakage and complex installation.

Method used

The sunroof seal strip adopts a U-shaped cross-section structure, combined with an L-shaped mounting base and an inclined fixed panel, improves installation convenience through the design of the inclined panel and the use of the U-shaped base, and prevents falling off through the protrusions and snap structures, and uses the protrusions and protruding parts of the soft material to improve sealing and stability.

Benefits of technology

It improves the installation convenience of the sunroof seal strip, prevents water leakage and fall off problems, and increases the head space and aesthetics inside the car, reducing weight.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025019452000001_ABST
    Figure 2025019452000001_ABST
Patent Text Reader

Abstract

To provide a roof weatherstrip mounting structure adapted to increase a cabin interior height at an automobile roof having a movable panel openable and closable and an opening provided with a fixed panel.MEANS FOR SOLVING THE PROBLEM: An inclined surface 16 having an acute angle on a vehicle lower side is formed at a second panel 12 that is a fixed panel made of resin. A weatherstrip mounting portion 17 having an approximately L-shaped cross-section is formed from a second panel lower surface 12b of the second panel 12 toward the vehicle lower side and toward a direction of a first panel 11 that is a movable panel. A roof weatherstrip 20 has a mounting base 21 having an approximately U-shaped cross-section and a hollow seal portion 22 connected to the mounting base 21. The mounting base 21 is attached to the weatherstrip mounting portion 17.SELECTED DRAWING: Figure 3
Need to check novelty before this filing date? Find Prior Art

Description

[Technical field]

[0001] The present invention relates to a mounting structure for a roof weather strip that is attached to an openable / closable movable panel and a fixed panel in a vehicle roof having an opening with the fixed panel, and that provides a seal between the movable panel and the end of the movable panel. [Background technology]

[0002] In the roof of an automobile having an opening with an openable movable panel and a fixed panel, the roof weatherstrip is attached to the fixed panel side and seals the gap between the movable panel and the end of the movable panel. For example, the structures described in Patent Documents 1 to 3 are known. FIG. 4 shows the technology described in Patent Document 1. The roof device 100 includes a movable panel 120 that opens and closes the opening of the roof panel 110, and a roof weatherstrip 200 that is provided between the opening edge of the roof panel 110 and the movable panel 120 and seals the gap between the opening edge and the movable panel 120. The opening edge of the roof panel 110 includes a flange portion 140 that extends vertically downward from the roof panel main body 130. The roof weatherstrip 200 has a mounting base 210 that includes the flange portion 140. In addition, a guide rail 150 that is attached to the roof panel 110 and supports the movable panel 120 is provided with a clamping portion 160 that clamps the mounting base 210 of the roof weatherstrip 200. With the above-mentioned configuration, the roof weatherstrip 200 after assembly is stably held by the clamping portion 160, so that the reliability of the roof weatherstrip 200 can be improved.

[0003] FIG. 5 shows the technology described in Patent Document 2. The roof weather strip 200 has a mounting base 210 attached to the tip of the fixed base panel 180 to which the fixed panel 170 is attached, and a seal portion 190 that abuts against the movable panel 120. The mounting base 210 has a panel engagement portion 230 that engages with the tip of the fixed base panel 180, and a rim engagement portion 250 that engages with a panel rim 240 attached to the tip of the fixed panel 170. The panel engagement portion 230 is formed on the lower surface side of the mounting base 210, and the rim engagement portion 250 is formed on the upper surface side of the mounting base 210. With the above configuration, the side portion on the tip side of the mounting base 210 engages with the tip of the fixed base panel 180 by the panel engagement portion 230, and the rim engagement portion 250 on the fixed panel 170 side of the mounting base 210 engages with the panel rim 240, so that both side ends of the mounting base 210 can be reliably attached.

[0004] Fig. 6 shows the technology described in Patent Document 3. The roof weatherstrip 200 has a first weatherstrip part 270, a second weatherstrip part 280, and a connecting part 290 that integrally connects the first weatherstrip part 270 and the second weatherstrip part 280. A convex part 320 that protrudes above the connecting part 290 and extends in the longitudinal direction is formed to seal between the sliding roof panel 330 and the fixed roof panel 260. A double-sided adhesive tape 300 is attached to the lower parts of the first weatherstrip part 270 and the second weatherstrip part 280, and the roof weatherstrip 200 is attached to a base plate 340 by the double-sided adhesive tape 300. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-62023 A [Patent Document 2] JP 2013-199143 A [Patent Document 3] JP 2010-260394 A Summary of the Invention [Problem to be solved by the invention]

[0006] In the roof of an automobile having an opening with an openable movable panel and a fixed panel, the interior height, which is one indicator of the space inside the vehicle, that is, the maximum vertical distance from the flat floor near the center of the vehicle to the ceiling lining, is about 10 to 30 mm shorter than in a vehicle that does not have an openable movable panel on the roof. As a result, complaints have been reported that the head clearance is small, especially for tall people.

[0007] In addition, in electric vehicles (EVs), which have become increasingly common in recent years, batteries are often installed under the floor, which raises the floor level and therefore moves the seating surface upward, further reducing the head clearance of passengers. Therefore, in vehicles with a movable roof panel that can be opened and closed, the narrowing of head clearance can become a significant problem.

[0008] Also, from the viewpoint of reducing the weight of a vehicle, it is important to use resin panels and to miniaturize the mounting area of ​​the roof weatherstrip. Furthermore, when attaching the roof weatherstrip to a resin panel by gluing, the surface of the resin panel must be degreased and primed, which makes assembly difficult. In addition, when using double-sided adhesive tape, problems arise such as water leakage due to peeling from the panel or roof weatherstrip due to deterioration of the tape, and panel malfunction due to peeling of the roof weatherstrip. [Means for solving the problem]

[0009] In order to solve the above problem, the present invention of claim 1 provides a mounting structure for a roof weatherstrip, comprising at least two panels arranged on the roof of a vehicle, a first panel being a movable panel configured to be able to open and close an opening in the roof, a second panel being a fixed panel made of resin arranged adjacent to the front or rear of the first panel, a second panel end of the second panel on the first panel side having an acute angled inclined surface extending from the first panel side toward the bottom of the vehicle in the vertical direction of the vehicle, and a weatherstrip mounting portion having an approximately L-shaped cross section is formed from the underside of the second panel of the second panel in the vehicle bottom direction and toward the first panel, the roof weatherstrip having a mounting base having an approximately U-shaped cross section and a hollow seal portion connected to the mounting base, and the mounting base being attached to the weatherstrip mounting portion.

[0010] In the present invention of claim 1, a weatherstrip mounting portion having an approximately L-shaped cross section is formed from the underside of the second panel of the second panel toward the vehicle downward and toward the first panel, and the roof weatherstrip has a mounting base having an approximately U-shaped cross section and a hollow seal portion connected to the mounting base, and the mounting base is attached to the weatherstrip mounting portion. Therefore, compared to when the roof weatherstrip is attached by bonding, workability during installation is improved, and problems such as water leakage due to deterioration after installation due to bonding and peeling of the roof weatherstrip can be eliminated.

[0011] In addition, since the weatherstrip mounting portion has a generally L-shaped cross section extending from the underside of the second panel of the second panel toward the vehicle bottom and toward the first panel, the mounting base of the roof weatherstrip can be located higher on the vehicle than when the weatherstrip mounting portion is formed perpendicular to the second panel. As a result, the interior height can be increased in a vehicle having an opening in the roof with a movable panel that can be opened and closed and a fixed panel.

[0012] In addition, the second panel end of the second panel on the first panel side is formed with an inclined surface at an acute angle from the first panel side toward the vehicle downward direction in the vehicle vertical direction, so that the hollow seal portion can be disposed including the space formed below the inclined surface. As a result, when the hollow seal portion is brought into contact with the first panel, the hollow seal portion can be deformed without generating load such as excessive bending on the hollow seal portion. In addition, since the space below the vehicle of the inclined surface is utilized, the gap between the first panel and the second panel can be narrowed. Furthermore, it is easy to control the hollow seal portion from protruding above the vehicle from between the first panel and the second panel, preventing the hollow seal portion from impairing the appearance of the roof.

[0013] Here, a "movable panel" refers to a panel that can move in the fore-aft direction of the vehicle to open and close an opening formed in the roof of the vehicle. A "fixed panel" refers to a panel that is attached to the vehicle roof and does not move in the fore-aft direction of the vehicle. Note that the fixed panel includes an action in which the movable panel side of the fixed panel moves upward on the vehicle when the movable panel opens the opening.

[0014] The present invention of claim 2 is a mounting structure for a roof weatherstrip in the invention of claim 1, in which a protrusion is formed on the weatherstrip mounting portion and an engagement portion is formed inside the opening of the mounting base, and the protrusion and the engagement portion engage with each other.

[0015] In the present invention of claim 2, a protrusion is formed on the weatherstrip mounting portion, and an engagement portion is formed inside the opening of the mounting base, and the protrusion and the engagement portion engage with each other, so that even when a force in the fore-and-aft direction of the vehicle is applied to the mounting base due to deformation of the hollow seal portion when the first panel is opened or closed, the mounting base can be prevented from moving in the fore-and-aft direction of the vehicle.

[0016] Incidentally, although the first panel can be opened and closed, it is generally left in a closed state, that is, with the end of the hollow seal portion and the first panel in contact, for a long time. Therefore, the end of the hollow seal portion and the first panel may become stuck together, and when the first panel is opened in a state in which the end of the hollow seal portion and the first panel are stuck together, the hollow seal portion is pulled in the front-rear direction of the vehicle, and accordingly, the mounting base connected to the hollow seal portion is also pulled in the front-rear direction, and there is a possibility that the mounting base will come off the weatherstrip mounting portion.

[0017] Even in this case, the protrusion and engagement portion engage with each other, so that even when the hollow seal portion is pulled in the fore-and-aft direction of the vehicle and the mounting base connected to the hollow seal portion is pulled in the fore-and-aft direction, the mounting base can be prevented from coming off the weatherstrip mounting portion.

[0018] The present invention of claim 3 is a mounting structure for a roof weatherstrip in which, in the invention of claim 1 or claim 2, at least one of an upper bulge and a lower bulge is formed on the non-opening side of the mounting base, the hardness of the upper bulge and the lower bulge is lower than the hardness of the material that constitutes the mounting base, the upper bulge abuts against the underside of the second panel, and the lower bulge abuts against a housing arranged below the vehicle of the second panel.

[0019] In the present invention of claim 3, at least one of an upper bulge and a lower bulge is formed on the side of the non-opening side of the mounting base, and the hardness of the upper bulge and the lower bulge is lower than that of the member constituting the mounting base, and the upper bulge abuts against the lower surface of the second panel, and the lower bulge abuts against the housing arranged in the vehicle lower direction of the second panel, so that the upper bulge bends when abutting against the lower surface of the second panel, sealing the gap between the mounting base and the lower surface of the second panel, and preventing water from entering. In addition, the upper bulge acts as a downward biasing force, stabilizing the mounting position of the roof weatherstrip and reliably fixing the mounting base of the roof weatherstrip to the weatherstrip mounting part. In addition, even when the mounting base deteriorates over time, the tip part of the mounting base on the opening side, which has a substantially U-shaped cross section, can be prevented from expanding, and the mounting base can be prevented from becoming easily detached from the weatherstrip mounting part.

[0020] On the other hand, the downward bulge bends when it comes into contact with the housing, sealing the space between the mounting base and the housing, and when the first panel, which is the movable panel, is opened, if water adhering to the hollow seal portion flows downward along the hollow seal surface or if this water bounces off below, it is possible to prevent water from entering the mounting base and the housing.

[0021] In addition, in claim 3, at least one of an upward bulge portion and a downward bulge portion is formed on the non-opening side of the mounting base, including cases where only an upward bulge portion is formed, cases where only a downward bulge portion is formed, and cases where both an upward bulge portion and a downward bulge portion are formed. Effect of the Invention

[0022] At least two panels are arranged on the roof of a vehicle, the first panel is a movable panel configured to be able to open and close an opening in the roof, the second panel is a fixed panel made of resin arranged adjacent to the first panel at the front or rear of the vehicle, the second panel end of the second panel on the first panel side is formed with an acute angled surface extending from the first panel side toward the bottom of the vehicle in the vertical direction of the vehicle, and a weatherstrip mounting portion having a substantially L-shaped cross section is formed on the underside of the second panel of the second panel in the bottom direction of the vehicle, the roof weatherstrip has a mounting base having a substantially U-shaped cross section and a hollow seal portion connected to the mounting base, and the mounting base is attached to the weatherstrip mounting portion, so that workability during installation is improved compared to when the roof weatherstrip is attached by adhesion, and problems such as water leakage due to deterioration after installation due to adhesion and peeling of the roof weatherstrip can be eliminated.

[0023] In addition, since the weatherstrip mounting portion has a generally L-shaped cross section extending from the underside of the second panel of the second panel toward the vehicle bottom and toward the first panel, the mounting base of the roof weatherstrip can be located higher on the vehicle than when the weatherstrip mounting portion is formed perpendicular to the second panel. As a result, the interior height can be increased in a vehicle having an opening in the roof with a movable panel that can be opened and closed and a fixed panel.

[0024] In addition, the second panel end of the second panel on the first panel side is formed with an inclined surface at an acute angle from the first panel side toward the vehicle downward direction in the vehicle vertical direction, so that the hollow seal portion can be disposed including the space formed below the inclined surface. As a result, when the hollow seal portion is brought into contact with the first panel, the hollow seal portion can be deformed without generating load such as excessive bending on the hollow seal portion. In addition, since the space below the vehicle of the inclined surface is utilized, the gap between the first panel and the second panel can be narrowed. Furthermore, it is easy to control the hollow seal portion from protruding above the vehicle from between the first panel and the second panel, preventing the hollow seal portion from impairing the appearance of the roof. [Brief description of the drawings]

[0025] [Figure 1] FIG. 2 is a plan view of the roof of the vehicle as viewed from above the vehicle. [Diagram 2] 1 is a cross-sectional view of a roof weather strip according to an embodiment of the present invention. [Diagram 3] 2 is a cross-sectional view taken along line AA in FIG. 1 when a roof weather strip according to an embodiment of the present invention is attached to a second panel and a first panel is closed. [Figure 4] FIG. 1 is a cross-sectional view showing a conventional embodiment (Patent Document 1). [Diagram 5] FIG. 1 is a cross-sectional view showing a conventional embodiment (Patent Document 2). [Figure 6] FIG. 1 is a cross-sectional view showing a conventional embodiment (Patent Document 3). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] An embodiment of the present invention will be described with reference to Fig. 1 to Fig. 3. In the following, the front-rear direction of a vehicle 1 is referred to as the "front-rear direction", and the upper and lower sides in the height direction of the vehicle 1 are referred to as the "upper" and "lower", respectively. Also, the width direction of the vehicle 1 is referred to as the "width direction".

[0027] FIG. 1 is a plan view of the roof 2 of a vehicle 1 as viewed from above the roof 2. The vehicle 1 is a sedan-type automobile, and the roof 2 is divided into four panels in the front-rear direction, with a first panel 11 being a movable panel and a second panel 12, a third panel 13, and a fourth panel 14 being fixed panels, a type known as a panoramic roof. The first panel 11 and the third panel 13 are made of glass plates, and by moving the cover on the inside of the glass plate, it is possible to enhance the sense of openness inside the vehicle over a wide area and to let light into the vehicle. Note that the vehicle 1 is not limited to a sedan-type automobile, and the roof 2 is not limited to a panoramic roof type.

[0028] The first panel 11 is attached so as to be able to open and close the opening 10. That is, the first panel 11 is attached so as to be able to perform a tilt-up operation in which the rear part rises with the front part as a fulcrum, and to perform a sliding operation in the front-rear direction. In the opening and closing operation using the first panel 11, a so-called outer sliding type is adopted in which the panel slides while remaining in the tilt-up state. The first panel 11 is formed with a first panel edge portion 11a (FIG. 3) that is a substantially square ring-shaped portion made of polyurethane resin material along its periphery and corresponds to the end portion on the second panel 12 side. The resin material of the first panel edge portion 11a is not limited to polyurethane.

[0029] On the other hand, the second panel 12 is located in front of the first panel 11 and is attached so as to close the front part of the opening 10. The second panel 12 is configured so that the first panel 11 side rises upward in order to regulate the intrusion of wind into the vehicle interior when the first panel 11 moves rearward. Note that the second panel 12 may be configured so that the first panel 11 side does not rise upward.

[0030] 2 is a cross-sectional view of the roof weatherstrip 20. The roof weatherstrip 20 has a mounting base 21 and a hollow seal portion 22 connected to the mounting base 21. The mounting base 21 has a substantially U-shaped cross section with a first vertical side portion 23 and a second vertical side portion 24 connected by a connecting portion 25.

[0031] An upward bulge 28 is formed in a hemispherical shape on the outer surface (the side surface of the first vertical side portion 23 not on the opening 26 side (non-opening side)) of the first vertical side portion 23 of the mounting base 21. The shape of the upward bulge 28 is not limited to a hemispherical shape. The upward bulge 28 is formed of a material having a lower hardness than the material constituting the first vertical side portion 23.

[0032] A downward bulge 29 is formed in a semispherical shape on the outer surface (the side surface of the second vertical side 24 not on the opening 26 side (non-opening side)) of the second vertical side 24 of the mounting base 21. The shape of the downward bulge 29 is not limited to a semispherical shape. The downward bulge 29 is formed of a material having a lower hardness than the material constituting the second vertical side 24.

[0033] An engagement portion 27 is formed inside the opening 26 of the mounting base 21 on the inner surface of the second vertical side portion 24 (the side surface of the second vertical side portion 24 on the opening 26 side). The engagement portion 27 is in the shape of a substantially right-angled triangle that protrudes less from the inner surface of the second vertical side portion 24 with increasing distance from the connecting portion 25. The hypotenuse of the substantially right-angled triangle may be in the shape of an arc.

[0034] The hollow seal portion 22 is connected to the mounting base 21 at two ends, a first end 30 and a second end 31, and has a generally D-shaped cross section. The first end 30 is connected to a position spanning the first vertical side portion 23 and the connecting portion 25, and the second end 31 is connected to the connecting portion 25. Note that the connection portions of the first end 30 and the second end 31 with the mounting base 21 are not limited to the above positions.

[0035] The roof weatherstrip 20 is formed by extrusion molding so that the cross section of Fig. 2 is continuously formed in the width direction of Fig. 1. The material of the roof weatherstrip 20 is ethylene propylene diene rubber (EPDM), the mounting base 21 is made of a solid material, and the hollow seal portion 22, the upward bulge portion 28, and the downward bulge portion 29 are made of sponge material. The hardness of the solid material is International Rubber Hardness (IRHD) 60 or more. The specific gravity of the hollow seal portion 22 is 0.4 or more and 1.0 or less. In this embodiment, the hollow seal portion 22, the upward bulge portion 28, and the downward bulge portion 29 are made of sponge material of the same hardness. In addition, it is desirable to set the hardness of the upper bulge portion 28 and the lower bulge portion 29 to be equal to or less than the hardness of the hollow seal portion 22, from the standpoint of ease of bending when the upper bulge portion 28 abuts against the underside 12b of the second panel (Figure 3) and when the lower bulge portion 29 abuts against the housing 50 (Figure 3).

[0036] 3 is a cross-sectional view taken along line AA in FIG. 1 when a roof weatherstripping 20 according to an embodiment of the present invention is attached to a second panel 12 and the first panel 11 is closed. The second panel 12 is made of resin. In the second panel 12, a second panel end 15 on the first panel 11 side is formed with an inclined surface 16 having an acute angle X downward from the first panel 11 side. The angle between the first panel top surface 11b and the second panel side surface 11c of the first panel edge portion 11a is 100 degrees. However, the angle between the first panel top surface 11b and the second panel side surface 11c is not limited to 100 degrees.

[0037] Further, a weatherstrip mounting portion 17 having a substantially L-shaped cross section is formed downward from the second panel underside 12b of the second panel 12 toward the first panel 11. The substantially L-shaped weatherstrip mounting portion 17 is composed of a protruding portion 17a protruding downward substantially perpendicularly from the second panel underside 12b and a mounting portion 17b extending substantially parallel to the second panel underside 12b from a lower tip portion of the protruding portion 17a, and a protrusion 18 is formed at the tip portion on the first panel 11 side of the mounting portion 17b, which protrudes downward and engages with an engaging portion 27 formed on the mounting base 21 of the roof weatherstrip 20. In addition, an upward bulge 28 is formed in a hemispherical shape on the outer surface of the first vertical side 23 of the mounting base 21, and since the upward bulge 28 flexes to abut against the second panel lower surface 12b of the second panel 12, in order to engage the engagement portion 27 formed on the second vertical side 24 with the protrusion 18, it is necessary to open the opening 26 side of the second vertical side 24 to allow the protrusion 18 to pass through. Therefore, it is desirable to form the protrusion 18 on the lower side of the mounting portion 17b. Furthermore, when the protrusion 18 and the engagement portion 27 are engaged, if the protrusion 18 is made to match the shape of the joint portion between the second vertical side portion 24 and the connecting portion 25, the mounting base 21 can be stably attached to the mounting portion 17b, so it is desirable to form the protrusion 18 into a rectangular shape, particularly a rectangle or square, at the tip portion of the mounting portion 17b.

[0038] It is desirable to form the tip portion of the mounting portion 17b on the first panel 11 side so that when the mounting base 21 of the roof weatherstripping 20 is attached to the mounting portion 17b, the outer surface (the surface on the non-opening side) of the connecting portion 25 of the mounting base 21 is adjacent to and sandwiched between the second panel underside 12b and the vertically downward side of the connection portion 19 of the inclined surface 16, because this allows the hollow seal portion 22 to be positioned by effectively utilizing the inclined surface 16. In Fig. 3, the outer surface of the connecting portion 25 of the mounting base 21 is located slightly toward the first panel 11 from the vertically downward side of the connection portion 19 (dotted line).

[0039] In this embodiment, the angle X between the second panel upper surface 12a and the inclined surface 16 is 50 degrees. The angle X between the second panel upper surface 12a and the inclined surface 16 is preferably 40 degrees to 60 degrees. If the angle X is less than 40 degrees, the length of the inclined surface 16 can be ensured, but the hollow seal portion 22 needs to be formed large in the front-rear direction, which is undesirable because it increases the weight of the roof weather strip 20. If the angle X exceeds 60 degrees, the space between the inclined surface 16 and the first panel edge portion 11a becomes narrow, and therefore, when the first panel 11 is closed, the degree of curvature of the upper end portion 22a at the time of deformation in the hollow seal portion 22 becomes large, which is undesirable because the durability of the hollow seal portion 22 decreases.

[0040] When the roof weatherstripping 20 is attached to the mounting portion 17b of the weatherstripping mounting portion 17 from the opening side of the mounting base 21, the upward bulge 28 above the mounting portion 17b bends and abuts against the first vertical side portion 23 of the mounting base 21 and the second panel underside 12b, sealing between the first vertical side portion 23 and the second panel underside 12b.

[0041] Further, below the mounting portion 17b, the protrusion 18 formed on the mounting portion 17b engages with the engagement portion 27 formed on the second vertical side portion 24 of the mounting base 21. The engagement portion 27 has a generally right-angled triangular shape that protrudes less from the side surface of the second vertical side portion 24 the further away from the connecting portion 25, so that the mounting base 21 can be easily inserted forward from the first panel 11 side into the mounting portion 17b.

[0042] A housing 40 is disposed below the second panel 12. A housing step portion 41 with a step downward is formed in the housing 40 on the first panel 11 side. In addition, a tip portion of the housing step portion 41 is bent 90 degrees with respect to the housing step portion 41 and extends downward.

[0043] When the housing 40 is disposed, the downward bulge 29 bends below the mounting portion 17b and abuts against the housing step portion 41, thereby sealing the gap between the second vertical side portion 24 and the housing step portion 41.

[0044] When the first panel 11 is closed, the hollow seal portion 22 of the roof weatherstripping 20 is pressed against the first panel edge portion 11a of the first panel 11 and deformed, and the hollow seal portion 22 abuts against the first panel edge portion 11a of the first panel 11 and the inclined surface 16 of the second panel 12.

[0045] Additionally, the upper end 22a of the hollow seal portion 22 is located below the line connecting the first panel upper surface 11b and the second panel upper surface 12a.

[0046] As described above in detail, according to this embodiment, the following effects can be obtained. (1) In this embodiment, the roof weatherstrip 20 has a mounting base 21 having a substantially U-shaped cross section and a hollow seal portion 22 connected to the mounting base 21. The mounting base 21 is attached to the weatherstrip mounting portion 17 formed on the housing 50. Therefore, compared to mounting the roof weatherstrip 20 by adhesive bonding, workability during installation is improved, and problems associated with deterioration after installation due to adhesive bonding can be eliminated.

[0047] (2) In this embodiment, the hollow sealing portion 22 abuts against the first panel edge portion 11a of the first panel 11 and the inclined surface 16 of the second panel 12, thereby preventing water from entering the inside of the vehicle from between the first panel 11 and the second panel 12.

[0048] (3) In this embodiment, the weatherstrip mounting portion 17 has a substantially L-shaped cross section downward from the second panel underside 12b of the second panel 12 and toward the first panel 11, and the substantially L-shaped weatherstrip mounting portion 17 is composed of a protruding portion 17a protruding downward substantially perpendicularly from the second panel underside 12b and a mounting portion 17b extending substantially parallel to the second panel underside 12b from a lower tip portion of the protruding portion 17a, and the mounting base 21 of the roof weatherstrip 20 is mounted to the mounting portion 17b extending substantially parallel to the second panel underside 12b, so that the mounting base 21 of the roof weatherstrip 20 can be located higher in the vehicle than when the weatherstrip mounting portion 17 is formed perpendicular to the second panel 12. As a result, the interior height can be increased in a vehicle having an opening with a movable panel that can be opened and closed on the roof and a fixed panel.

[0049] (4) In this embodiment, the second panel end 15 of the second panel 12 on the first panel 11 side is formed with an inclined surface 16 at an acute angle downward from the first panel 11 side in the vertical direction, so that the hollow seal portion 22 can be disposed including the space formed below the inclined surface 16. As a result, when the hollow seal portion 22 is brought into contact with the first panel 11, it can be deformed without generating a load such as excessive bending on the hollow seal portion 22. In addition, since the space below the inclined surface 16 is utilized, the gap between the first panel 11 and the second panel 12 can be narrowed. Furthermore, it is possible to easily control the upper end 22a of the hollow seal portion 22 from protruding upward from between the first panel 11 and the second panel 12, thereby preventing the appearance of the roof from being impaired. (5) In the present embodiment, a protrusion 18 that protrudes downward in a rectangular shape is formed at the tip portion of the mounting portion 17b of the weatherstrip mounting portion 17 on the first panel 11 side, and an engagement portion 27 that is approximately in the shape of a right-angled triangle and protrudes less from the side surface of the second vertical side portion 24 as it moves away from the connecting portion 25 is formed on the inner surface of the second vertical side portion 24 of the mounting base 21 of the roof weatherstrip 20. Since the protrusion 18 and the engagement portion 27 engage with each other, it is easy to insert the mounting base 21, on which the engagement portion 27 is formed, into the mounting portion 17b of the weatherstrip mounting portion 17 on which the protrusion 18 is formed.

[0050] Furthermore, after the mounting base 21 is attached to the mounting portion 17b, even when a force in the fore-and-aft direction of the vehicle 1 is applied to the mounting base 21 due to deformation of the hollow seal portion 22 when the first panel 11 is opened or closed, the mounting base 21 can be prevented from moving in the fore-and-aft direction of the vehicle 1.

[0051] Furthermore, the first panel 11 is generally left in a closed state, that is, with the hollow seal portion 22 and the first panel edge portion 11a in contact, for a long time, which may cause the hollow seal portion 22 and the first panel edge portion 11a of the first panel 11 to become stuck together. However, even in this case, since the protrusion 18 and the engagement portion 27 are engaged, even when the hollow seal portion 22 is pulled toward the rear of the vehicle 1 and the mounting base 21 connected to the hollow seal portion 22 is pulled toward the rear, the mounting base 21 can be prevented from coming off the weatherstrip mounting portion 17.

[0052] (6) In the present embodiment, an upward bulge 28 is formed on the outer surface of the first vertical side portion 23 of the mounting base 21. The hardness of the upward bulge 28 is lower than that of the material constituting the mounting base 21. The upward bulge 28 bends and deforms to abut against the underside 12b of the second panel. Therefore, the first vertical side portion 23 side of the mounting base 21 is biased against the weatherstrip mounting portion 17, thereby stabilizing the mounting position of the roof weatherstrip 20.

[0053] Furthermore, when the first panel 11 is opened, even if water that has accumulated at the contact portion between the hollow seal portion 22 and the inclined surface 16 or water adhering to the hollow seal portion 22 flows onto the inclined surface 16 or onto the inclined surface 16 side of the hollow seal portion 22, the upward bulge portion 28 abuts against the underside 12b of the second panel, thereby preventing the water from penetrating between the mounting base 21 and the weatherstrip mounting portion 17.

[0054] In addition, even if the hollow seal portion 22 deteriorates over time and water penetrates between the hollow seal portion 22 and the inclined surface 16, water can be prevented from penetrating between the mounting base 21 and the weatherstrip mounting portion 17.

[0055] (7) In this embodiment, a downward bulge 29 is formed on the outer surface of the second vertical side portion 24 of the mounting base 21, and even when the housing 40 is disposed below the second panel 12, the hardness of the downward bulge 29 is lower than that of the material constituting the mounting base 21, and the downward bulge 29 flexes and deforms to abut against the housing step portion 41 of the housing 40, so that the second vertical side portion 24 side of the mounting base 21 is biased against the weatherstrip mounting portion 17, thereby reliably ensuring engagement between the engagement portion 27 and the protrusion 18. In addition, the mounting position of the roof weatherstrip 20 is stabilized.

[0056] Furthermore, when the first panel 11 is opened, even if water that has accumulated at the abutment portion between the hollow seal portion 22 and the first panel edge portion 11a or water adhering to the hollow seal portion 22 runs down the first panel 11 side of the hollow seal portion 22 or if the water that has run down to the first panel 11 side drips down and bounces off below, the downward bulge 29 abuts against the housing step portion 41, so that the running water or the bouncing water can be prevented from entering between the mounting base 21 and the housing 40.

[0057] (8) In this embodiment, the second panel 12 is made of resin, which makes it possible to reduce the weight.

[0058] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the object of the present invention.

[0059] The material constituting the roof weather strip 20 may be EPDM, thermoplastic elastomer, soft synthetic resin, etc. As the thermoplastic elastomer, TPV, or olefin-based thermoplastic elastomer (TPO) is preferable from the viewpoints of weather resistance, recyclability, cost, etc. [Explanation of symbols]

[0060] 2 Roof 11 Panel 1 11a First panel edge 12 Second Panel 12b Second panel underside 15 Second Panel End 16 Slope 17 Weather strip mounting part 18 Protrusion 20 Roof weather strip 21 Mounting base 22 Hollow seal part 27 Engagement part 28 Upper bulge 29 Lower bulge 40 Housing

Claims

1. At least two panels are provided on the roof of the vehicle, The first panel is a movable panel configured to be able to open and close the opening of the roof, the second panel is a fixed panel made of resin and arranged adjacent to the first panel at the front or rear of the vehicle, A second panel end portion of the second panel on the first panel side is formed with an inclined surface at an acute angle from the first panel side to a vehicle downward direction in the vehicle vertical direction, a weatherstrip mounting portion having a substantially L-shaped cross section is formed from a second panel lower surface of the second panel toward the vehicle lower side and toward the first panel; The roof weather strip has a mounting base portion having a substantially U-shaped cross section and a hollow seal portion connected to the mounting base portion, A roof weatherstrip mounting structure, characterized in that the mounting base is mounted to the weatherstrip mounting portion.

2. A protrusion is formed on the weather strip mounting portion, An engagement portion is formed inside the opening of the mounting base, 2. The roof weatherstrip mounting structure according to claim 1, wherein the projection and the engagement portion are engaged with each other.

3. At least one of an upward bulge and a downward bulge is formed on a non-opening side surface of the mounting base, the hardness of the upper bulge and the lower bulge is lower than that of a member constituting the mounting base; The upward bulge portion abuts against a lower surface of the second panel, 3. The roof weatherstrip mounting structure according to claim 1, wherein the downward bulging portion abuts against a housing disposed below the second panel.

Citation Information

Patent Citations

  • Roof weather strip for automobile

    JP2010260394A

  • Roof apparatus

    JP2012062023A

  • Roof weather strip for motor vehicle

    JP2013199143A