JP2004262423A - Roof panel weather strip for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof panel weather strip for use in a sliding roof of an automobile assuring excellent sealing performance and free of the emission of noise etc. <P>SOLUTION: The roof panel weather strip 20 seals a gap between the sliding roof 10 of the automobile and the roof panel opening edge 2 of the automobile body and has a mounting base 21 attached to the opening edge 2 and a hollow seal part 22 formed rigidly on the oversurface of the mounting base, wherein the hollow seal 22 is composed of hollow seal walls 22b having approximately a rhombic section, and seal walls 22b having possibility to be deformed and contacted with each other when the hollow seal part 22 is compressed from above are formed with a plurality of ridges 22j on one of inner surfaces of the seal walls 22b, and the roof panel weather strip 20 is arranged so that the hollow seal part 22 abuts to the undersurface of the periphery of the sliding roof 10 when it is closed. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a weather strip for sealing between an outer periphery of a sliding roof of an automobile and an opening edge of a vehicle body roof panel, and more particularly to a roof panel weather strip used for a tilting and slidable automobile sliding roof. is there.

  In the conventional sliding roof, a substantially rectangular opening is formed in the roof panel 1 as shown in FIG. 9, and a sliding roof 110 is provided so as to be slidable in the front-rear direction of the vehicle body so as to open and close this opening. Then, when opening the opening, the sliding roof 110 is once tilted up and then retracted to open the opening. When the opening is closed, the opening is slid forward by an operation opposite to that described above, and finally the opening is closed by tilting down (for example, see Patent Document 1).

  As shown in FIG. 10, in order to prevent rainwater and the like from entering the vehicle from the opening in the case of rainy weather and to seal between the roof panel opening edge 2 and the sliding roof 110, as shown in FIG. Has a roof panel seal 50 attached.

  The roof panel seal 50 includes a mounting base 52 to be mounted on the sliding roof 110, and a hollow sealing portion 51 formed on a side surface of the mounting base 52 and having a hollow sealing function, and is formed of rubber or a thermoplastic elastomer. The installation of the roof panel seal 50 is performed by fitting the mounting base 52 of the roof panel seal 50 into a resin mold 53 provided around the sliding roof 110.

  When the sliding roof 110 is closed, the hollow seal portion 51 of the roof panel seal 50 abuts against a vertical wall surface provided at the roof panel opening edge 2 to seal between the two. However, the sliding roof 110 may not always come in contact with a fixed size due to variations in sliding movement of the sliding roof 110 and variations in assembling the vehicle body. Rainwater or the like may enter the inside of the sliding roof 110 from between the wall 51 and the wall surface.

  Such rainwater or the like travels along the roof panel seal 50 and falls and is received by a drip channel 60 provided around the roof panel opening edge 2 (for example, see Patent Document 2). For this reason, a space for providing the drip channel 60 is required, and the overall mechanism of the sliding roof 110 is increased.

  Therefore, an attempt has been made to attach a weather strip that contacts the lower surface around the sliding roof 110 to the opening edge 2 of the roof panel and to seal between the two. However, since the sliding roof 110 is tilted up or down as described above, if the weather strip seal is set up and down, the wrap size increases, and the hollow seal portion that contacts the sliding roof 110 is crushed, and the hollow seal is closed. The seal walls of the parts may contact each other.

In this case, even when the sliding roof 110 moves, the seal walls of the hollow seal portion may remain in close contact with each other. Then, there is a possibility that the sealing property may be deteriorated in that portion. In addition, when the closely adhered seal wall is separated, abnormal noise may be generated.
JP-A-2000-335255 (pages 2-3, FIG. 1) JP-A-9-207580 (page 2-3, FIG. 2)

  Therefore, the present invention relates to a weather strip for sealing between the outer periphery of a sliding roof of an automobile and an opening edge of a roof panel of a vehicle body, and particularly to a roof panel weather strip used for a tilting and slidable automobile sliding roof. It is an object of the present invention to provide a weather strip which has excellent sealing properties and does not generate abnormal noise.

  According to the present invention, there is provided an automobile roof panel weather strip for sealing between a sliding roof of an automobile and a roof panel opening edge of a vehicle body, wherein the roof panel weather strip is attached to the roof panel opening edge. It has a hollow seal portion integrally formed on the base and the mounting base upper surface, and the hollow seal portion is formed of a hollow seal wall having a substantially rhombic cross section. A plurality of ridges are provided on one side of the inner surface of the seal wall, which may be deformed to make contact with each other, and the roof panel weather strip is provided on the outer periphery of the sliding roof when the sliding roof is closed. The hollow seal portion is in contact with the lower surface of the portion.

  According to the first aspect of the present invention, since the hollow seal portion is formed of a hollow seal wall having a substantially rhombic cross section, the hollow seal portion can be flexibly deformed when it comes into contact with the sliding roof, and the lap dimension with the sliding roof varies. Also, since a substantially constant contact force can be obtained, a stable sealing property can be obtained.

  Further, when the hollow seal portion is compressed from above, even if the above-mentioned substantially rhombic shape is deformed like a whisker and the seal walls that come into contact with each other come into contact with each other, a plurality of protrusions are formed on one of the inner surfaces of the seal wall. Since the ridges are provided, the seal walls of the hollow seal portion do not come into contact with or adhere to each other and the seal walls do not stick to each other. This is because a plurality of ridges are provided to reduce the contact area between the seal walls, reduce the adhesive force, and if the sliding roof does not compress the hollow seal part, the seal walls will separate from each other immediately. This is because it is possible to return to the original hollow shape of the hollow seal portion. .

  Further, the roof panel weather strip is annularly mounted so as to abut the lower surface of the outer peripheral portion of the sliding roof when the sliding roof is closed, so that the hollow seal portion abuts the lower surface of the sliding roof at a substantially right angle. Even if the contact size varies, the hollow seal portion bends to give a predetermined pressing force, and the sealing property can be ensured. Also, when the sliding roof is tilted, it does not rub in the lateral direction when operating, and during sliding movement, the sliding roof is separated from the hollow seal portion, so that the hollow seal portion is not worn and stable. A good seal can be obtained.

  According to a second aspect of the present invention, the seal wall of the hollow seal portion is provided at a seal wall base portion extending so as to extend obliquely upward from the mounting base portion from both side ends of the cross section of the mounting base portion and a tip end of the seal wall base portion on both sides. It comprises a bent portion which is bent outward in a substantially rectangular shape in cross section, and a seal wall arc portion which connects the bent portions on both sides in an arc shape, and a projection is provided on both seal wall base portions.

  According to the second aspect of the present invention, since the seal wall of the hollow seal portion has the seal wall base portion extending so as to extend obliquely upward from the mounting base portion from both side ends of the cross section of the mounting base portion, the hollow seal portion has When the seal wall is deformed so as to be crushed, the base portion of the seal wall can be bent and deformed near the boundary with the mounting base, and the hollow seal portion is smoothly deformed.

  Further, since the outer ends of the seal wall bases on both sides have bent portions bent outward in a substantially rectangular shape in cross section, when the seal wall of the hollow seal part is deformed to be crushed, the seal wall base and the seal wall are closed. Since the wall arc portion is crushed so as to protrude outward at the bent portion, the hollow seal portion is easily deformed. Further, since the deformed shape of the hollow seal portion is substantially the same on the left and right of the cross section, it is possible to obtain a stable seal without abnormal deformation.

  In addition, the seal wall has an arc portion connecting the bent portions on both sides in an arc shape, so that the tip of the hollow seal portion protrudes in an arc shape, and the contact force when contacting the lower surface of the sliding roof is reduced. In addition to being large and excellent in sealing performance, even when the hollow seal portion is compressed, the compressive force can be dispersed throughout the seal wall.

  According to a third aspect of the present invention, in the arcuate portion of the seal wall, the thickness of the central portion, which is the upper protruding tip, is the thickest, and the thickness gradually decreases as approaching the bent portion.

  According to the third aspect of the present invention, the arcuate portion of the seal wall is thickest at the central portion and gradually decreases in thickness as approaching the bent portion, so that the rigidity at the central portion is high and the hollow seal portion is compressed. At the time of deformation, not only the center portion is depressed but also the arc portion of the seal wall can be deformed from an arc shape to a substantially flat plate shape, so that the contact force with the sliding roof becomes substantially constant and stable. A sealing force can be obtained.

  According to the present invention, the ridge is provided on the inner surface of the hollow seal portion of the roof panel weather strip for sealing between the sliding roof of the automobile and the opening edge of the opening of the vehicle body roof, so that the hollow seal portion is compressed and sealed. Even if the walls are in close contact with each other, when the compression of the hollow seal portion stops, the seal wall of the hollow seal portion immediately separates and the shape of the hollow seal portion returns to its original shape, so that it has good sealing properties, A roof panel weatherstrip free of sound can be obtained.

  An embodiment of the present invention will be described with reference to FIGS.

  An embodiment of the present invention is a roof panel main weather strip in a double seal using a roof panel main weather strip 20 and a roof panel sub weather strip 30 to seal between a sliding roof 10 and a roof panel opening edge 2. 20 will be described as an example.

  FIG. 1 is a sectional view of the roof panel main weather strip 20.

  The roof panel main weather strip 20 includes a mounting base 21 and a hollow seal portion 22, and is made of sponge rubber. The material of the roof panel main weather strip 20 is a synthetic rubber such as EPDM or a thermoplastic elastomer, and is extruded substantially linearly by extrusion. In the case of synthetic rubber, it is vulcanized in a vulcanizing tank after extrusion.

  As shown in FIG. 8, the roof panel main weather strip 20 has a substantially rectangular ring shape in plan view. The overall shape and the mounting state will be described later.

  As shown in FIG. 1, the mounting base 21 of the roof panel main weather strip 20 has a plate shape having a substantially rectangular cross section, and is made of the same sponge rubber as the hollow seal portion 22. On the lower surface of the mounting base 21, projections 21c, 21c are provided at both ends thereof. The projections 21c, 21c are pressed against a base member 3 attached to a roof panel opening edge 2, which will be described later, and a roof panel main weather Seal between the strip 20 and the base member 3.

  Further, a double-sided adhesive tape 21g is attached to a part of the lower surface of the mounting base 21.

  As shown in FIG. 2, the mounting base 21 is provided with clip mounting holes 21 b at predetermined intervals. The roof panel main weather strip 20 can be mounted by inserting the head of the clip 21d into the clip mounting hole 21b and inserting the legs of the clip 21d into holes provided in the base member 3 described later. At this time, by using the double-sided adhesive tape 21g provided on the back surface of the mounting base 21 as described above, the mounting can be performed more reliably and stably, and the seal between the roof panel main weather strip 20 and the base member 3 can be obtained. The performance is also improved.

  The hollow seal portion 22 is formed in a hollow shape by a seal wall 22b formed of a substantially rhombic sponge rubber having a horizontally long cross section. Therefore, when the hollow seal portion 22 is compressed from above, the hollow seal portion 22 is easily deformed so as to shrink in the cross-sectional lateral direction.

  The cross-sectional shape of the hollow seal portion 22 will be described in more detail. The seal wall 22b of the hollow seal portion 22 includes seal wall base portions 22e and 22f, bent portions 22c and 22d, and a seal wall arc portion 22g.

  As shown in FIG. 1, seal wall bases 22 e and 22 f of the seal wall 22 b extend so as to extend diagonally upward from the both ends of the cross section of the mounting base 21 and outward from the mounting base 21. For this reason, when the hollow seal portion 22 is compressed from above, the seal wall base portions 22 e and 22 f are deformed so as to fall outward from the connection portion with the mounting base 21. Therefore, the deformation of the hollow seal portion 22 is smooth. In this manner, the seal wall bases 22e and 22f are formed on the mounting base 21 in an inverted C-shape in cross section, and the height is about half of the entire height of the seal wall 22b.

  Bends 22c and 22d which are bent outward in a substantially rectangular shape in cross section are provided at the respective distal ends of the seal wall bases 22e and 22f. An arc-shaped seal wall arc portion 22g connects the both bent portions 22c and 22d. For this reason, when the hollow seal portion 22 is compressed from above, the bent portions 22c and 22d bend outward and deform so that the seal wall base portions 22e and 22f and the seal wall arc portion 22g overlap. Accordingly, the vertical deformation of the hollow seal portion 22 is performed smoothly, and the hollow seal portion 22 has a substantially constant elastic force even when the deformation amount is large or small, so that the sealing performance with the sliding roof 10 can be kept substantially constant. it can.

  Since the seal wall arc portion 22g has an arc-shaped cross section, the central portion of the hollow seal portion has an arc shape, and when it comes into contact with the lower surface of the sliding roof 10, the contact force is large and the sealing performance is excellent, and the hollow portion is hollow. Even when the seal portion 22 is compressed, the compressive force can be dispersed throughout the seal wall.

  The seal wall arc portion 22g has an arc shape, and the thickness of the seal wall tip portion 22h, which is the uppermost end of the hollow seal portion 22, is the thickest, and the thickness gradually decreases as approaching the bent portions 22c and 22d. In the vicinity of 22c and 22d, the thickness is substantially the same as the bent portions 22c and 22d.

  The seal wall arc portion 22g has the thickest thickness at the center seal wall tip 22h and gradually decreases as it approaches the bent portions 22c and 22d. Even when the portion 22 is compressed and deformed, only the seal wall tip 22h is not deformed so as to be concave, and the seal wall arc portion 22g can change from an arc shape to a flat plate shape. As described above, since the deformation is made around the bent portions 22c and 22d, the contact force with the sliding roof 10 becomes substantially constant, and a stable sealing force can be obtained.

  Further, in the present embodiment, three protrusions 22j are provided on the inner surfaces of both seal wall bases 22e and 22f, respectively. Due to the provision of the ridges 22j, even when the hollow seal portion 22 is compressed and crushed from above, when the seal wall base portions 22e and 22f of the seal wall 22b and the seal wall arc portion 22g are pressed against and in close contact with each other, the contact area also increases. When the compression is released, the seal walls 22b (the seal wall bases 22e and 22f and the seal wall arc 22g) immediately separate from each other, and the shape of the hollow seal 22 returns to its original shape. For this reason, the hollow seal portion 22 can maintain a predetermined sealing property.

  The number of the protrusions 22j is not limited to three, and may be any number as long as the sealing wall 22b can be prevented from sticking.

  Further, in the present embodiment, the protrusions 22j are formed on the inner surfaces of the seal wall base portions 22e and 22f, but may be provided on both inner surfaces of the seal wall arc portion 22g.

  However, if ridges are provided on both seal wall bases 22e and 22f, one ends of the seal wall bases 22e and 22f are integrated with the mounting base 21, so that the hollow seal 22 is compressed from above. Even when the seal wall 22b is deformed, the seal wall 22b is less likely to be deformed and moved than the seal wall arc portion 22g, and the restoring force is correspondingly increased.

  Next, the mounting state of the roof panel main weather strip 20 to the roof panel opening edge 2 and the sealing state between the sliding roof 10 and the roof panel opening edge 2 as shown in FIG. 7 will be described.

  As shown in FIG. 5, a base member 3 mounted on a roof panel opening edge 2 of a roof panel 1 of a vehicle is formed in a frame shape as shown in FIG. A sliding roof 10 having the strip 20 and a roof panel sub-weather strip 30 and closing the roof panel opening edge 2 is mounted on the top. FIG. 3 is a perspective view of a disassembled assembly such as the sliding roof 10 viewed from obliquely above. The roof panel main weather strip 20 has a quadrangular annular shape in plan view so as to seal the periphery of the sliding roof 10. The roof panel sub-weather strip 30 is provided on the side of the roof panel main weather strip 20 so as to seal both sides of the sliding roof 10 so as to be substantially parallel and straight along the front-rear direction of the vehicle. .

  Although the sliding roof 10 is shown as being divided into three sheets in the present embodiment, it can be applied to a single sliding roof panel without being divided. Further, when the sliding roof 10 is made of a glass panel or a translucent synthetic resin panel, it has excellent lighting and is preferable in terms of design.

  As shown in FIG. 4, when the sliding roof 10 is divided into three parts, the sliding roof 10 includes a first sliding roof 11, a second sliding roof 12, and a third sliding roof 13 from the front side of the vehicle.

  The periphery of the first sliding roof 11 is surrounded by a front mold portion 11b at the front end, a side mold portion 11c at both sides, and a rear mold portion 11d at the rear end. Similarly, the periphery of the second sliding roof 12 and the third sliding roof 13 are front mold portions 12b and 13b at the front end, side mold portions 12c and 13c at both sides, and rear mold at the rear end. It is surrounded by parts 12d and 13d.

  As shown in FIGS. 5 and 6, the sliding roof 10 is mounted on the base member 3 so that the rear portion of the first sliding roof 11 can be tilted up with its front end as a center of rotation. The second sliding roof 12 and the third sliding roof 13 are mounted so that their rear portions are raised around a front end on the front side as a center of rotation and are slidable in the front-rear direction.

  When the sliding roof 10 is opened, first, a driving device (not shown) rotates the first sliding roof 11 about the front end on the front side and performs a so-called tilt-up operation in which the rear part is raised. Further, the second sliding roof 12 and the third sliding roof 13 also rotate around the front end on the front side as a center of rotation, tilt up so that the rear part is raised, and slide rearward. Then, the second sliding roof 12 slides further rearward, and slides above the third sliding roof 13, so that the roof panel opening is fully opened.

  For this reason, since the roof panel opening is opened in a state where the second and third sliding roofs 12 and 13 overlap with each other, the sliding roof can be opened as much as possible without projecting backward.

  When the sliding roof 10 is closed, the movement is reversed. Whether the sliding roof 10 is composed of one sheet or divided into two or three sheets, the form of the seal by the roof panel main weather strip 20 and the roof panel sub weather strip 30 is the same.

  Further, seals between the first sliding roof 11 and the second sliding roof 12 and seals between the second sliding roof 12 and the third sliding roof 13 are attached to front ends of the second sliding roof 12 and the third sliding roof 13, respectively. The second sliding roof sub-seal 15 and the third sliding roof sub-seal 16 are provided.

  FIG. 7 is a partial cross-sectional view showing the vehicle body side portion of the opening edge of the roof panel when the sliding roof is closed. A base member 3 is attached to the entire periphery of the roof panel opening edge 2, and an annular roof panel main weather strip 20 is attached to the base member 3 as shown in FIG. A linear roof panel sub-weather strip 30, which will be described later, is attached to both sides of the roof panel opening edge 2, that is, a side portion of the roof panel main weather strip 20 on the vehicle exterior side, and forms a double sealing structure. are doing.

  The base member 3 includes an overhang portion 3b that projects from the inside of the roof panel opening for mounting the roof panel main weather strip 20, an attachment portion 3c that is attached to the inner panel 1b of the roof panel 1, and an attachment portion that will be described later. An upright wall portion 3d for mounting a roof panel sub-weather strip 30 extending upward from 3c.

  In FIG. 7, 1C indicates an outer panel, and 4 indicates a roof molding.

  FIG. 8 is a plan view of the roof panel main weather strip 20.

  The roof panel main weather strip 20 has a substantially square annular shape substantially along the shape of the roof panel opening edge 2. That is, the roof panel main weather strip 20 has a main seal front portion 25 forming one side on the front side, a main seal rear portion 26 forming one side on the rear side, and a main seal side forming one side on both sides. The two corner connecting portions 23 on the front side of the respective corners of the square are connected by molding. In other words, the main seal front part 25, the main seal rear part 26 and the main seal side parts 27, 27, which constitute the remaining three sides, are constituted by one extruded product as a whole. The corner bends 24, 24 on the rear side are filled with corner pads 24b made of a bar-shaped sponge into the hollow seal portion 22 at the corner bend to prevent the hollow seal portion 22 from being crushed.

  The mounting state of the roof panel main weather strip 20 will be described with reference to FIG.

  When the roof panel main weather strip 20 is attached to the base member 3, the hollow seal portion 22 faces upward, and when the sliding roof 10 is closed, the hollow seal portion 22 contacts the lower surface of the sliding roof 10. Since the hollow seal portion 22 is hollow and has an arcuate cross-sectional shape, it is easy to bend, and even if the lap amount with the sliding roof 10 changes, the hollow seal portion 22 is not deformed and the contact force does not greatly change. A stable sealing force can be obtained.

  In addition, even if the sliding roof 10 is opened or closed, the roof panel main weather strip 20 is provided in the lower surface direction of the sliding roof 10 even when the sliding roof 10 is opened or closed. Movement can be easily absorbed, sealability can be maintained, wear is small, and durability is excellent.

  Next, the roof panel sub weather strip 30 will be described. As described above, as shown in FIG. 3, the roof panel sub-seal 30 is linearly attached substantially parallel to the roof panel main weather strip 20 on both sides of the vehicle body on the base member 3 attached to the roof panel opening edge 2. .

  FIG. 7 shows the mounted state. As described above, the base member 3 includes an overhang portion 3b for attaching the roof panel main weather strip 20, an attachment portion 3c, and an upright wall portion 3d extending upward from the attachment portion 3c. The roof panel sub-weather strip 30 includes a mounting base 31 that is mounted on the upright wall portion 3d, and a hollow seal portion 32 that comes into contact with the side mold portions 11c, 12c, and 13c of the sliding roof 10.

  The mounting base 31 is made of solid rubber, and the hollow seal part 32 is made of sponge rubber. Both are made of synthetic rubber such as EPDM and are manufactured by extrusion. Part of the hollow seal portion 32 covers an end surface of the mounting base 31 on the vehicle outside. As a result, the seam between the mounting base 31 and the hollow seal portion 32 can be made invisible from the outside of the vehicle, and the appearance can be improved.

  With the roof panel sub-weather strip 30 and the roof panel main weather strip 20, both sides of the vehicle body are double-sealed, so that rainwater does not enter the vehicle interior, and the sealing performance is improved. The rainwater that has leaked from the roof panel sub-weather strip 30 is discharged out of the vehicle from a groove provided in the projecting portion 3b of the base member 3. Therefore, there is no need to provide the drip channel 60 below the roof panel sub-weather strip 30, and the structure of the roof panel 1 can be made compact.

  A roof molding 4 is attached to a gap between the upper panel 1c of the roof panel 1 and the roof panel sub-weather strip 30. With this roof molding 4, the gap can be covered and the aesthetic appearance can be improved.

FIG. 1 shows an embodiment of the present invention, and is a cross-sectional view of a roof panel main weather strip. FIG. 1 shows an embodiment of the present invention, and is a cross-sectional view of a state where a roof panel main weather strip is attached with a clip. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and is a perspective view of a base member attached to a roof panel opening edge of a vehicle body and a sliding roof that opens and closes an opening of a roof panel, as viewed from an obliquely upper side in an exploded state. It is a perspective view showing the sliding roof divided into three sheets of an embodiment of the invention. It is a fragmentary sectional view of an opening of a roof panel when a sliding roof divided into three sheets of an embodiment of the invention slides to the rear side. It is the perspective view seen from the diagonally upper part of the opening part of the roof panel when the sliding roof divided into three sheets of embodiment of this invention slides to the rear side. FIG. 4 is a partial cross-sectional view of a vehicle body side portion of an opening edge of a roof panel when the sliding roof according to the embodiment of the present invention is closed. It is a top view of a roof panel main seal of an embodiment of the invention. FIG. 3 is a partial plan view of a roof panel of the vehicle body. FIG. 10 is a partial cross-sectional view of a vehicle body side portion of an opening edge of a roof panel when a conventional sliding roof is closed.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Roof panel 2 Roof panel opening edge 10 Sliding roof 20 Roof panel main seal 21 Mounting base 22 Hollow seal part 22b Seal wall 22c, 22d Bent part 22e, 22f Seal wall base part 22g Seal wall arc part 22j Ridge 30 Roof panel sub Seal 31 Mounting base 32 Hollow seal

Claims (3)

In an automobile roof panel weatherstrip that seals between a sliding roof of an automobile and a roof panel opening edge of a vehicle body,
The roof panel weather strip has a mounting base portion attached to the roof panel opening edge and a hollow seal portion integrally formed on an upper surface of the mounting base portion,
The hollow seal portion is formed of a hollow seal wall having a substantially rhombic cross section,
When the hollow seal portion is compressed from above, a plurality of ridges are provided on one surface of the inner surface of the seal wall, which may be deformed so that the substantially rhombic shape is in contact with each other,
The roof panel weather strip for an automobile, wherein when the sliding roof is closed, the hollow seal portion comes into contact with a lower surface of an outer peripheral portion of the sliding roof. The seal wall of the hollow seal portion has a seal wall base portion extending so as to extend obliquely upward from the both ends of the cross section of the mounting base from the mounting base, and a substantially rectangular cross section at the tip of the seal wall base on both sides. 2. A roof panel for an automobile according to claim 1, comprising a bent portion bent outward and a seal wall arc portion connecting the bent portions on both sides in an arc shape, wherein the protrusions are provided on both of the seal wall base portions. Weather strip. The roof panel weather strip for an automobile according to claim 1 or 2, wherein the seal wall arc portion has a thickest thickness at a central portion, which is an upwardly projecting tip, and gradually decreases in thickness as approaching the bent portion.

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