JP3744632B2 - Car weather strip - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, the front end portion of the base portion is locked to the molding intermediate surface between the molding base portion that is joined to the front pillar of the windshield side molding and the molding tip portion that protrudes to the periphery of the windshield, and the rear end portion of the base portion is The present invention relates to a weather strip for an automobile from a front pillar to a roof side, which is locked to a drip channel joined to a front pillar and has a hollow seal portion toward the outside of a passenger compartment toward the front of a base portion. .
[0002]
[Prior art]
FIG. 3 shows a weather strip extending from this type of front pillar 2 to the roof side 3 by a cross-sectional view taken along line AA in FIG. That is, the rear end portion of the base portion 11 of the weather strip 10 is provided with a lip-shaped seal portion facing the outside of the passenger compartment, and the drip channel 6 joined to the pillar surface 2a outside the passenger compartment of the front pillar 2 by welding. The engagement piece 13 is engaged with the engagement piece 6a. The front end portion of the base portion 11 is provided with hollow seal portions 14 and 15 toward the outside of the passenger compartment, and is bent outwardly from the vehicle base and the molding base 7a screwed to the pillar surface 2a of the windshield side molding 7. Engaging grooves 16 formed on the front surfaces of the hollow seal portions 14 and 15 are locked to the locking pieces 14a formed on the molding intermediate surface 7b between the front end portions 7c protruding to the periphery of the windshield 4. . Reference numeral 9 denotes a lip-shaped seal portion that is in pressure contact with the periphery of the windshield 4 formed integrally with the molding intermediate surface 7b.
[0003]
[Problems to be solved by the invention]
However, in the case of such a weather strip, since the hollow seal portion 14 outside the vehicle compartment to which the front door panel 1 is in pressure contact is directly supported between the windshield side molding 7 and the drip channel 6, Variation is absorbed by the bending of the hollow seal portion 14, and therefore the bending load may be excessively increased or the sealing performance may be deteriorated.
[0004]
In view of the above, an object of the present invention is to provide an automobile weather strip of the kind described at the beginning that can avoid the influence of variations in the mounting structure.
[0005]
[Means for Solving the Problems]
In order to achieve this object, according to the present invention, according to claim 1, the front end portion of the base portion is a molding between the molding base portion joined to the front pillar of the windshield side molding and the molding tip portion protruding to the periphery of the windshield. Locked to the intermediate surface, and the rear end of the base is provided with a lip-shaped seal portion facing the outside of the passenger compartment, locked to a drip channel joined to the front pillar, and further toward the front of the base. In the weather strip of an automobile that has a hollow seal part toward the outside of the passenger compartment and extends to the door opening from the front pillar to the roof side, the middle surface of the windshield side molding is hollow when the front door is closed. And a locking piece for locking the front end of the base portion projecting backward at a midway position on the middle surface of the molding. A gap allowing the displacement of the front end portion in the bending direction is formed closer to the molding base than the locking piece on the intermediate surface of the rail, and the front surface of the hollow seal portion extends along the molding intermediate surface outside the vehicle compartment from the locking piece. The lower part of the front surface reaching the base from the middle position of the front surface is formed in an inverted L shape so that a gap allowing displacement in the bending direction of the front surface is formed between the middle position and the locking piece. It is characterized by that.
[0006]
The weather strip is supported by the drip channel at the rear end portion of the base portion, and the front end portion of the base portion is locked by a locking piece to position the hollow seal portion in the vehicle width direction. When the front door is closed, there is a gap on both sides of the locking piece, so that the front surface of the hollow seal part bends along the middle surface of the windshield side molding and the base part is also displaced in the bending direction. You can also.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an automobile weather strip according to an embodiment of the present invention based on the body structure shown in FIG. 3, and the same or equivalent parts as those described above are indicated by the same reference numerals.
[0008]
The rear end portion of the base portion 21 of the weather strip 20 is provided with a lip-shaped seal portion 12 facing the outside of the vehicle in the same manner as described above, and the base portion 21 is engaged with the locking piece 6a of the drip channel 6. The groove 13 is locked.
[0009]
A hollow seal portion 24 is formed toward the front side of the vehicle from the middle position of the base portion 21 in the vehicle front-rear direction. A molding intermediate surface 33 that extends forward to the molding base 7a of the windshield side molding 30 is formed along the bending direction of the hollow seal portion 24 when the front door panel 1 is closed, that is, substantially along the vehicle width direction. A locking piece 35 that accommodates and locks the front end portion 12a of the base portion 21 in the groove 34 is provided at a midway position in the vehicle width direction of the surface 33 by folding back toward the vehicle rear side. That is, a gap S2 is formed behind the front end portion 12a in the bending direction by the groove 34.
[0010]
The front surface 25 of the hollow seal portion 24 is formed along the molding intermediate surface 33 outside the vehicle compartment from the locking piece 35, and the front lower portion 26 reaching the base portion 21 from the midway position 25 a of the front surface 25 is a locking piece. It is formed in an inverted L-shaped cross section with a gap S1 in the vehicle width direction with respect to 35. The molding intermediate surface 33 is continuously formed with a molding tip 31 protruding from the periphery of the windshield 4 and a lip-shaped seal portion 9 that is in pressure contact with the periphery of the windshield 4.
[0011]
As a result, the hollow seal portion 24 is not directly supported by the molding intermediate surface 33, and a space is also formed around the back surface 28 only by the front surface 25 facing it. Further, gaps S1 and S2 exist in the front direction 25 and the front end portion 21a in the bending direction.
[0012]
The weather strip 20 is supported by the drip channel 6 at the rear end portion of the base portion 21, and the front end portion 21 a is pressed against the locking piece 35 by the bending elasticity of the base portion 21 and locked in the vehicle width direction. Positioning is performed. Therefore, the hollow seal portion 24 is not fixed to the windshield side molding 30, and deformation due to the installed state is suppressed. Further, the base portion 21 can be bent by its elasticity. Therefore, when the front door panel 1 is closed, the front surface 25 of the hollow seal portion 24 bends along the molding intermediate surface 33 of the windshield side molding 30, and the base portion 21 is also hollow due to the presence of the gaps S1 and S2. The seal portion 24 is deflected and displaced without being excessively bent. Accordingly, the hollow seal portion 24 smoothly deforms and displaces following the closing movement of the front door panel 1, and the sealing performance is improved. Further, the hollow seal portion 24 is deformed due to the installed state, and the sealing performance is deteriorated, the appearance is impaired, the bending load at the time of closing the door is increased, and the like are avoided. On the premise that the base portion 21 has flexibility, the hollow seal portion 24 is formed so as to be able to reliably come into contact with the mounting deviation of the front door panel 1 to the vehicle outer side. The generation of wind noise can be avoided by ensuring sealing performance.
[0013]
FIG. 2 shows another embodiment of the present invention. The weather strip 20 has the same structure as described above, but the windshield side molding 40 made of synthetic resin or metal has a front end portion attached to the windshield 4. The lip-shaped seal portion 9 is abolished by being bent into a curved surface toward the surface, contacting the peripheral edge of the windshield 4 with the rain gutter recess 41.
[0014]
【The invention's effect】
As described above, according to the present invention, the hollow portion of the weather strip is not easily deformed with respect to the variation in the installation of the front door, and is displaced in the door closing direction. Therefore, it is possible to avoid the deterioration of the sealing performance or the generation of wind noise due to the deformation of the hollow portion, the outward protruding protrusion, the increase of the bending load when the door is closed, and the like.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along line AA in FIG. 4 of a weather strip according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a weather strip according to another embodiment.
FIG. 3 is a cross-sectional view of the conventional weather strip taken along line AA in FIG.
FIG. 4 is a side view of an automobile to which the present invention is applied.
[Explanation of symbols]
2 Front pillar 4 Windshield 7a Mold base 20 Weather strip 21 Weather strip base 21a Front end 24 of base part Hollow seal part 25 Front face 30, 40 of hollow seal part Windshield side molding 33 Mold intermediate surface 35 Locking piece

Claims (1)

The front end of the base is locked to the molding middle surface between the molding base joined to the front pillar of the windshield side molding and the front edge protruding to the front glass rim, and the rear end of the base is the passenger compartment It has a lip-shaped seal part facing outside and is locked to a drip channel joined to the front pillar, and further has a hollow seal part toward the outside of the passenger compartment on the front side of the base part, and is roofed from the front pillar. In the automotive weatherstrip that extends to the door opening to the side,
Forming the molding intermediate surface (33) of the windshield side molding (30, 40) along the bending direction of the hollow seal portion (24) when the front door is closed,
A locking piece (35) for locking the front end portion (21a) of the base portion (21) is projected rearward at an intermediate position of the molding intermediate surface (33), and the locking piece on the molding intermediate surface (33). Forming a gap (S2) allowing the displacement of the front end (21a) in the bending direction closer to the molding base (7a) than (35);
The front surface (25) of the hollow seal portion (24) is formed along the molding intermediate surface (33) outside the vehicle from the locking piece (35), and the base portion (25a) from the middle position (25a) of the front surface (25). 21), a gap (S1) allowing the displacement of the front surface (25) in the bending direction is formed between the intermediate position (25a) and the locking piece (35). A weather strip for an automobile, which is formed in an inverted L shape.

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