JPH06286531A - Weather strip for automobile - Google Patents

Abstract

PURPOSE:To improve adhesiveness to a glass surface by forming the entire part of a weather strip in an integrated manner so that the glass adhesive width of a seal lip in the corner of a glass window is gradually and locally narrowed in the boundary between the linear part and the corner part of the glass window, in relation to the glass adhesive width in the linear part of the window. CONSTITUTION:The glass adhesive width X of an interior side seal lip 4 forming a weather strip W is formed narrower than the linear part S in the corner part C of a glass window G. The glass adhesive width Y of an exterior side seal lip 5 is formed almost the same as the minimum part of the glass adhesive width X of the interior seal lip 4 along the entire length. The peripheral part of the glass window G is fitted into a glass fitting part 6 to fit a continuous weather strip W around the glass sheet G. The interior as well as exterior seal lips 4, 5 forming a glass sandwiching part 1 are interlocked well with and adhered to each corner part C of the glass window G.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip for an automobile, which is attached to an outer peripheral edge of a window glass arranged in a window opening of an automobile.

[0002]

2. Description of the Related Art Generally, various weather strips are attached to an outer peripheral edge portion of a window glass attached to a window opening of a vehicle body panel. For example, as shown in FIG. 5, a window glass G for the sunroof is provided in the window opening for the sunroof provided on the roof panel 21, and the entire circumference of the outer peripheral edge of the window glass G is provided. A weatherstrip W ′ for sealing and decoration is attached.

This weather strip W'has a hollow seal portion 22 which elastically contacts the inner peripheral edge of the window opening and performs a sealing function, and a glass sandwiching portion having a U-shaped cross section which is sandwiched between the outer peripheral edge portion of the window glass G. 23 and 23 are integrated. Further, the glass sandwiching portion 23 is a vehicle interior seal lip 23 that sandwiches the outer peripheral edge portion of the windshield G from the vehicle interior.
a and a vehicle exterior seal lip 2 that sandwiches the vehicle exterior side
3b and wind glass G each having a predetermined width
Adheres to the surface of. Then, when the weather strip W ′ is attached to the outer peripheral edge of the windshield G,
When the entire circumference is performed with one glass, since the glass sandwiching portion 23 of the weather strip W ′ does not follow the glass G at the corner portion C of the wind glass G, as shown in FIG. The seal lips 23a and 23b forming the holding portion 23 may float or meander to generate wrinkles 24, which may cause troubles such as water leakage from the wrinkles 24, and at the same time, the appearance of the wrinkles 24 may be increased. Significantly impaired.

Therefore, for example, as shown in FIG.
A curved mold die 25 along the corner portion C of the wind glass G is formed separately, and the mold die 25 is formed.
Is attached to the corner portion C of the weather strip W ″, or a preformed weather strip is attached only to the straight portion of the wind glass, and each corner portion is molded to correspond to the corner followability. All of these methods use molds, which increase the manufacturing cost, and because the materials used for the weather strip in the straight and corner portions of the wind glass are subtly different, there is a difference in color tone. And the joints of both parts were recognized, which made it look unattractive.In addition, the width of the seal lip that constitutes the weather strip was shortened over the entire length to prevent the occurrence of wrinkles. Then, the glass holding power of the seal lip decreases, so
In order to increase this holding power, it is necessary to use an adhesive means together.

[0005]

DISCLOSURE OF THE INVENTION According to the present invention, one weather strip having a good corner following property is attached to the outer peripheral edge portion of the wind glass so that the glass holding force is not lowered and the glass at the corner portion is not deteriorated. The challenge is to improve the adhesion to the surface.

[0006]

DISCLOSURE OF THE INVENTION The present invention for solving this problem provides a hollow seal portion which elastically comes into contact with the inner peripheral edge of a window opening provided in a vehicle body panel to perform a sealing function, and the window opening portion. An automotive weather comprising a glass sandwiching portion having a U-shaped cross section, which is sandwiched by the outer peripheral edge portion of the windshield to be disposed, and the glass sandwiching portion is provided with a pair of seal lips that are in close contact with both sides of the windshield. In the strip, the glass adhesion width of the seal lip at the corner portion of the window glass is gradually changed with respect to the glass adhesion width at the straight portion at the boundary portion between the straight portion and the corner portion of the wind glass. Formed narrowly,
The feature is that the whole is integrally molded.

[0007]

The glass adhesion width of the seal lip of the weather strip at the corner portion of the wind glass gradually changes with respect to the glass adhesion width at the straight portion at the boundary portion between the straight portion and the corner portion of the wind glass. Since it is partially formed narrow, the sealing lip of the glass sandwiching part follows the corners of the wind glass well, and it adheres well to the glass surface without rising or meandering and generating wrinkles. . Further, the seal lip is attached to the straight portion of the wind glass in this seal lip because only the portion attached to the corner portion of the wind glass is narrower than the portion attached to the straight portion. Since a predetermined width can be secured for the glass adhesion width of the portion, it can be maintained without lowering the glass holding power.

[0008]

EXAMPLES The present invention will be described in more detail with reference to examples. FIG. 1 is a partial sectional perspective view of a weather strip W according to the present invention mounted on an outer peripheral edge portion of a windshield G, and FIG. 2 is an enlarged sectional view of a corner portion C of the windshield G. 3 is also the straight line portion S
4 is an enlarged cross-sectional view of FIG. 4, and FIG. 4 is a partial perspective view of a weather strip W according to the present invention. 1 to 4
In the above, the weather strip W is an extruded product, and is composed of a glass sandwiching portion 1 sandwiched by the outer peripheral edge portion of the window glass G, and a hollow seal portion 2 integrally molded with the glass sandwiching portion 1. The glass sandwiching portion 1 has a U-shaped cross section and is made of semi-hard rubber. The hollow seal portion 2 is hollow and made of soft rubber, and elastically deforms. . At the upper and lower end portions of one side surface of the base portion 3 of the glass holding portion 1, a vehicle interior seal lip 4 that closely adheres to the surface of the outer peripheral edge portion of the window glass G from the vehicle interior side and the vehicle exterior side.
The vehicle outer seal lip 5 and the vehicle outer seal lip 5 are integrally formed at predetermined intervals, and a glass fitting portion 6 is formed between the seal lips 4 and 5. Further, a glass frame insertion groove 7 that is open to the inside of the vehicle is formed in the base portion 3 of the glass holding portion 1. The hollow seal portion 2 is integrally formed on the base 3 of the glass holding portion 1 on the side opposite to the side on which the seal lips 4 and 5 are formed.

The base portion 3 and the vehicle outer side seal lip 5 that constitute the glass holding portion 1 have the same cross-sectional shape over the entire length, but as shown in FIG. The contact width (X) is partially narrower at a portion corresponding to the corner portion C of the windshield G than at a portion corresponding to the straight portion S. That is, when the weather strip W is attached to the outer peripheral edge of the windshield G, the glass adhesion width (X) of the vehicle interior seal lip 4 is gradually increased at the boundary between the straight portion S and the corner portion C of the windshield G. It is formed so as to be the narrowest in the center of the corner C by changing. on the other hand,
The glass adhesion width (Y) of the vehicle exterior seal lip 5 is constant over the entire length and is substantially equal to the glass adhesion width (X) of the vehicle interior seal lip 4 corresponding to the corner portion C of the windshield G. Therefore, in the straight portion S of the windshield G, the glass adhesion width (Y) of the vehicle exterior seal lip 5 is narrower than the glass adhesion width (X) of the vehicle interior seal lip 4.

Further, a sealant reservoir groove 8 is continuously formed in the longitudinal direction on the outer side surface of the vehicle interior seal lip 4, and the glass seal width (X) of the sealant reservoir groove 8 is narrowed at this portion. Correspondingly, the formation position of the sealant reservoir groove 8 is displaced along the width direction of the vehicle interior seal lip 4.

The weather strip W according to the present invention can be easily continuously molded by providing a movable molding die in a portion of the pressure molding die where the vehicle interior seal lip 4 is molded.

As described above, in the weather strip W according to the present invention, the glass adhesion width (X) of the vehicle interior seal lip 4 constituting the weather strip W is smaller at the corner portion C of the window glass G than at the straight portion S thereof. Is formed on the outer surface of the vehicle, and the width (Y) of the glass seal of the outer seal lip 5
Is formed so as to be substantially the same as the minimum portion of the glass sealing width (X) of the vehicle interior seal lip 4 over the entire length, so that the window glass G is fitted to the glass fitting portion 6.
When one continuous weatherstrip W is fitted around the glass G by fitting the peripheral edge of the glass G, the seal lips 4 and 5 forming the glass holding part 1 are good at each corner C of the wind glass G. Following the above, it does not wrinkle by rising or meandering, and adheres well to both sides of the wind glass G. Further, since the inside seal lip 4 is narrower only in the portion attached to the corner portion C of the windshield G as compared with the portion attached to the straight portion S, the inside seal lip 4 of the inside seal lip 4 is Since the glass adhesion width (X) of the portion attached to the straight line portion S of the window glass G can ensure a predetermined width, the glass holding force can be maintained without lowering.

Then, as shown in FIGS. 2 and 3,
When the windshield G having the weather strip W attached to the outer peripheral edge thereof is attached to the window opening formed in the roof panel 21 of the automobile so as to be openable and closable, the hollow seal portion 2 of the weather strip W is elastically deformed. , Roof panel 2
1 is elastically contacted, so that the window opening of the roof panel 21 is sealed. 2 and 3, reference numeral 9 denotes a glass frame, and the vehicle interior seal lip 4 and the glass frame 9 are joined together by a sealant 11 overflowing from a sealant reservoir groove 8 provided in the vehicle interior seal lip 4. To be done.

Further, in the above embodiment, only the glass adhesion width (X) of the vehicle interior seal lip 4 is partially changed, but the glass adhesion of the vehicle interior and vehicle exterior seal lips 4 and 5 is different. The width may be changed so that a large glass holding force can be obtained. The weather strip according to the present invention can be mounted not only on the windshield provided in the window opening of the roof panel but also on the weather strip for other fixed windows.

[0015]

In the weather strip according to the present invention, the seal lip constituting the weather strip is formed so that the glass adhesion width is partially narrow, and the narrowed portion is attached to the corner portion of the windshield. Since the seal lip is configured, the seal lip follows the corner portion of the windshield glass and adheres well to the glass surface without generating wrinkles. For this reason, there is no fear of occurrence of an obstacle such as water leakage from the corner portion of the weather strip, and at the same time, the appearance of the corner portion is improved. Further, since the necessary width can be secured for the portion of the seal lip that is attached to the straight portion of the windshield, the glass retaining force of the weather strip can be maintained without being lowered.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional perspective view of a weather strip W according to the present invention attached to an outer peripheral edge of a windshield G.

FIG. 2 is an enlarged cross-sectional view of a corner portion C of a window glass G equipped with a weather strip W according to the present invention.

FIG. 3 is an enlarged cross-sectional view of a straight portion S of a windshield glass G to which a weather strip W according to the present invention is attached.

FIG. 4 is a partial perspective view of a weather strip W according to the present invention.

FIG. 5 is a perspective view of an automobile equipped with a sunroof.

FIG. 6 is a partial cross-sectional perspective view of a windshield G equipped with a conventional weather strip W ′.

FIG. 7 is a partial cross-sectional perspective view of a window glass G to which another conventional weather strip W ″ is attached.

[Explanation of symbols]

 C: Wind glass corner G: Wind glass W: Weather strip X: Glass adhesion width of car interior seal lip 1: Glass sandwiching part 2: Hollow seal part 4: Car interior seal lip 5: Car exterior seal lip 8: Sealant Pool

Claims (3)

[Claims] 1. A hollow seal portion elastically contacting an inner peripheral edge of a window opening provided in a vehicle body panel to perform a sealing function, and a cross section sandwiched between an outer peripheral edge portion of a window glass disposed in the window opening. An U-shaped glass sandwiching portion, the glass sandwiching portion being a weather strip for an automobile provided with a pair of seal lips that adhere to both sides of the windshield, the seal lips at the corners of the windshield. The glass adhesion width of is gradually changed at the boundary portion between the straight portion and the corner portion of the wind glass with respect to the glass adhesion width at the straight portion, and is partially narrowed so that the whole is integrally molded. A weather strip for automobiles. 2. The weather strip for an automobile according to claim 1, wherein only a glass adhesion width of a pair of seal lips on the inside of the vehicle is formed to be partially narrow at a corner portion of the windshield. 3. A sealant reservoir groove is continuously formed in a longitudinal direction on an outer surface of a seal lip inside the vehicle, and a position where the sealant reservoir groove is formed along the width direction of the seal lip is the seal lip. The weather strip for an automobile according to claim 2, wherein the weather strip changes in accordance with a change in glass adhesion width.