JP3104259B2 - Automotive weather strip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weatherstrip for an automobile, and more particularly, to a weatherstrip molding structure and a doorsash assembly structure.

[0002]

2. Description of the Related Art In general, in a motor vehicle, a weather strip is attached to a peripheral portion of a door or the like so as to block water, dust and sound. In recent years, automobiles have been traveling at high speeds for long distances. Around a door, a step between a door glass and a weather strip has been considered as a requirement for noise and air resistance. Therefore, in order to reduce the level difference, the weather strip has come out from the indoor side to the outdoor side. As shown in FIG.
This type of weather strip 91 has a design surface 9
A molding portion 911 having a sealing member 110, sealing portions 912 and 913 for sealing the door glass 92, and a U-shaped metal core 91.
5 is embedded and fixed to the lower surface of the door sash 93 by the fitting portion 914 (for example, Japanese Utility Model Application Laid-Open No. 62-197559). Another conventional weatherstrip is disclosed in Japanese Utility Model Application Laid-Open No. 62-1278.
There is one described in JP-A-12. This is because the upper part of the weatherstrip from the fitting part (D in FIG. 10)
The core metal is buried over the part (2) to prevent set and to enhance the rebound resilience function. In FIG. 10,
94 is a body, and 95 and 96 are seal members.

[0003]

However, in a conventional automotive weather strip, the distance L from the body 94 to the lower end of the weather strip 91 becomes long as shown in FIG. This is because the weather strip 91 is fixed to the lower surface of the door sash 93. As a result, the occupant's view when the outside of the cabin is viewed from the cabin is narrowed. Further, in the case where a core metal is buried in the upper part of the weather strip like the latter weather strip, when a so-called flat core metal is used as the core metal, the formability is inferior. Therefore, it becomes difficult to produce a weather strip. In the case where a so-called break core is used, the above problem can be solved, but on the surface of the weather strip, a wavy ridge pattern having a wavy shape in the longitudinal direction appears. As a result, the appearance of the weatherstrip deteriorates. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and has as its object to provide a weather strip for an automobile, which can be easily formed and can increase the occupant visibility.

[0004]

The present invention relates to a weather strip for an automobile, which is divided into a molding part having a design surface on an outer surface and a sealing part for sealing a side surface of a door glass and fixed to an outer surface of a door sash. Te, the mall part, the body
Part, a body seal part provided in the main body part and in contact with the body, and connected to the main body part in a bendable manner via a connecting part.
A foldable bent portion, a hollow seal portion provided in the bent portion and in contact with an upper end surface of the door glass, and a sash fixing piece for fixing to an outer surface of the door sash. And a fitting part for fitting and fixing to a sash fixing piece of a molding part. The most remarkable point in the present invention is that the weatherstrip is divided into a molding portion having a design surface on the outer surface and a sealing portion for sealing the side surface (inside of the vehicle compartment) of the door glass. The molding portion is fixed to the outer surface of the door sash, and the sealing portion is fitted and fixed to the side surface of the molding portion. It is desirable to bury a so-called flat core metal in the molding part. As a result, the dragon bone pattern does not appear on the design surface,
The appearance of the weather strip can be improved. Further, it is desirable that the end of the molding portion on the design surface side is formed to be bent so as to wind around the tip of the door glass (see FIG. 1). As a result, it is possible to reduce the level difference from the door glass and significantly reduce air resistance during high-speed traveling. It is also desirable that the end of the flat core bend so as to wind around the tip of the door glass (see FIG. 8). As a result, it is possible to prevent the bent portion from sagging. The hollow seal portion is provided at the bent portion, and the bent portion is connected to a main body of the molding portion via a connecting portion . Then, after bending the main body into a desired shape, the main body is folded through the connecting portion.
The bent portion is bent and deformed, and the bent portion is bent inside the main body . As a result, the hollow sheet provided in the bent part
Le portion facing the upper end surface of the door glass at inside of the main body portion
It is arranged to be. (See Example 1, FIGS. 1 and 2).
Accordingly, when the bending processing of the main body portion, not the hollow seal portion is disturbed, it can be processed flexion songs accuracy rather good the body portion. The hollow seal is bent as described above.
The fixed in a state of bending to the inside of the main body portion. As the means, there is a method of engaging the locking projection on the hollow seal portion side with the engagement concave portion on the main body portion (see FIG. 1). There is a method of providing a mating concave portion and engaging a locking projection on the hollow seal portion side with the engaging concave portion (see FIG. 8). Means for fixing the sash fixing piece to the door sash include a method of fixing with a screw, a method of fixing with an adhesive (see FIGS. 1 and 8), and a method of clamping with the fitting portion. It is desirable to embed a flexible so-called break core in the seal portion. (See FIG. 7). Thereby, the molding processability of the seal portion is improved.

[0005]

In the present invention, when assembling the weather strip, first, the sash fixing piece of the molding portion is fixed to the outer surface of the door sash. Thereby, the body seal portion of the molding portion comes into contact with the body to seal between the weather strip and the body. Next, a seal part is attached to the side surface of the molding part. At this time, the fitting part of the seal part is fitted and fixed to the sash fixing piece of the molding part. Thereby, the assembly is completed. Thus, in order to fix the weatherstrip to the outer surface of the door sash,
The distance from the body to the lower end of the weather strip becomes shorter. As a result, the occupant visibility is greatly expanded. Also,
Since the weatherstrip is divided into a molding part and a sealing part, the forming process, which has been difficult with the conventional weatherstrip alone, becomes easier. In addition, the core metal can be properly used between the molding part and the seal part. In addition,
Empty seals shall be foldable as described above.
Section. Therefore, the main body is bent to the desired shape.
After processing, bend the above-mentioned bent part inside the main part,
It can be configured into the final weatherstrip.
Therefore, when bending the main body,
The hollow seal part provided in the bent part does not obstruct
The part can be machined with high accuracy. In use, when the door glass is raised, the seal lip of the seal portion slides on the side surface of the door glass. Also, the hollow seal portion of the molding contacts the upper end surface of the door glass. This seals between the door glass and the weatherstrip. Therefore, according to the present invention, it is possible to provide a weather strip for an automobile, which can be easily formed and expands the field of view of the occupant.

[0006]

Embodiment 1 A weather strip for a vehicle according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 to 3, the weather strip 1 of this embodiment is divided into a molding part 11 having a design surface 1140 on the outer surface and a sealing part 12 for sealing the side surface of the door glass 92. Fixed to the outer side. The molding portion 11 includes a body seal portion 113 abutting on the body 94, a hollow seal portion 115 abutting on the upper end surface of the door glass 92, and a sash fixing piece 11 for fixing to the outer surface of the door sash 93.
And 1. The seal portion 12 is provided with a door glass 92.
The sealing lip 122 slidingly contacting the side surface of the
Fitting part 12 for fitting and fixing to the sash fixing piece 111 of FIG.
And 1. The molding section 11 includes a main body section 1101.
And a bent portion 1102 connected to the main body 1101 via a connecting portion 1103. And the main body 1
Reference numeral 101 denotes the sash fixing piece 111 extending along the outer surface of the door sash 93 and the upper piece 112 disposed above the door glass 92, and has a substantially L-shaped cross section. Specifically, the main body 1101 includes a flat metal core 118 formed by bender-rolling a thin metal plate into a substantially L-shape, and a rubber or synthetic resin covering member 119 extruded on the surface of the flat metal core 118. And The bent portion 1102 and the connecting portion 1103 are formed integrally with the covering member 119 by extrusion. Further, the body seal portion 113 and the hollow seal portion 115 are extruded integrally with the covering member 119 using a soft material.
The main body 1101 of the molding section 11 is three-dimensionally curved in accordance with the curved shapes C1 and C2 of the door sash 93 by stretch bender processing using the mold 5 as shown in FIG. And FIG. 5). In order to perform the stretch bender processing in this manner, neither a lip-shaped member nor a hollow member is provided on the inner surface of the main body 1101 of the molding portion 11. Hollow hollow seal part 115
Is provided on the bent portion 1102. The top end of the upper piece 112 is bent toward the door glass 92, and a glass roll 114 is formed at the bent portion. The design surface 1140 is formed on the outer surface of the glass piece 114. Also, the sash fixing piece 11
1 and the upper piece 112, the bent portion 1
An engagement concave portion 1161 for fixing the base 102 is formed. The sash fixing piece 11 has a through hole 1110 through which the screw 13 is inserted. Then, the screw 13 is screwed into a screw hole 930 formed in the door sash 93 to fix the molding portion 11.
The bent portion 1102 is extruded in a substantially L-shaped cross section along the inner surface of the molding portion 11. The bent portion 1102 is provided with the hollow seal portion 115 and a locking projection 1162 for engaging with the engagement concave portion 1161. The connecting portion 1103 is formed of a semi-rigid material, and can be easily bent and deformed. On the other hand, the sealing portion 1
2 is a sash fixing piece 111 made of rubber or synthetic resin.
Extruded into a shape along the lower part of The fitting portion 121 is formed below the seal portion 12.
The fitting portion 121 is formed in a U-shape, and has a fitting foot 1210 protruding inside thereof. A U-shaped break core 128 is embedded in the fitting portion 121. As shown in FIGS. 6 and 7, the break mandrel 128 has a large number of slits 1280, and thus has excellent flexibility. Therefore, the seal portion 12 is mounted while being curved along the molding portion 11. The seal lip 122 is formed below the seal portion 12. Reference numeral 117 denotes a sealing lip. Reference numeral 96 denotes a seal member similar to the conventional example. Since the weather strip 1 of the present embodiment is configured as described above, the following effects are obtained. That is, in the case of the molding process, FIG.
As shown in (1), the main body 1101 of the molding section 11 is stretch-bendered using the mold 5. The main body 11
01 is a flat cored bar 118, but the main body 1
Since the structure of 101 is simple, three-dimensional forming can be performed smoothly. For this reason, the processing accuracy also increases. After the forming process of the main body 1101, as shown in the figure, the connecting portion 1103 is bent and deformed, and the bent portion 1102 is bent inside the main body 1101. And the main body 110
The first engaging recess 1161 and the locking projection 1162 of the bent portion 1102 are engaged. Thereby, as shown in FIG. 1, the bent portion 1102 is fixed along the inner side surface of the main body 1101. Further, since the break core metal 128 having flexibility is used for the seal portion 12, the molding portion 1 is used.
1 can easily bend and deform the seal portion 12. When assembling the weather strip 1, first, the molding portion 11 is fixed to the door sash 93. At this time, the sash fixing piece 111 of the molding portion 11 is fixed to the outer surface of the door sash 93 with the screw 13. Next, the seal portion 12 is fitted and fixed to the molding portion 11. At this time,
The fitting part 121 of the seal part 12 is fitted to the sash fixing piece 111 of the molding part 11 while bending and deforming the seal part 12 along the molding part 11. Thus, the assembly of the weather strip 1 is completed. When the door glass 92 is used, the seal lip 122 of the seal portion 12 comes into sliding contact with the inner surface of the door glass 92 due to the rise of the door glass 92. Further, the hollow seal part 115 of the molding part 11 comes into contact with the upper end surface of the door glass 92. This seals between the door glass 92 and the weatherstrip 1. When the door is closed, the body seal 11 of the molding 11 is closed.
3 contacts body 94. Thereby, the seal between the body 94 and the weather strip 1 is performed. As shown in FIGS. 1 and 10, the step S between the weatherstrip 1 and the door glass 92 is smaller than in the prior art, so that the air resistance is reduced during high-speed running. This is because the upper end of the door glass 92 is supported by the glass piece 114. Further, since the weather strip 1 is fixed to the outer surface of the door sash 93, the distance L between the body 94 and the lower end of the weather strip 1 is reduced. Therefore, the occupant's view when the outside of the vehicle compartment is viewed from inside the vehicle compartment is expanded. Thus, according to the present embodiment, the forming process of the weather strip 1 is facilitated. Also, the occupant visibility can be greatly expanded. Embodiment 2 A weather strip 2 of this embodiment will be described with reference to FIGS. In this embodiment, an engaging recess 261 is provided on the seal portion 12 side shown in the first embodiment, and the molding portion 11 is provided.
A locking projection 262 is provided on the side. That is, the engaging recess 26 is located at a position near the tip of the screw cover piece 21 of the seal portion 12.
1 is provided. On the other hand, the bent part 11 of the molding part 11
At the position near the tip of 02, the locking projection 262 formed in a hook shape is provided. A seal lip 22 is formed instead of the seal lip 122 shown in the first embodiment. The seal lip 22 is formed of a sponge material, and a flock 29 is provided on an outer surface thereof. Further, the same flocking 29 is applied to the hollow seal portion 115 shown in the first embodiment. Further, the flat cored bar 118 is buried in the glass roll piece 114 shown in the first embodiment to increase the set strength. Since the flat cored bar 118 is used as described above, no wavy ridge pattern appears on the design surface 1140. Therefore, the weather strip 2 of the present example is excellent in appearance. The design surface 11
It is also possible to apply a decorative member such as a color tape or a stainless steel tape to 40. Accordingly, it is possible to reduce abrasion resistance when contacting the door glass 92 and improve abrasion resistance. Instead of the flocking 29, urethane containing a lubricant may be coated on the outer surfaces of the seal lip 22 and the hollow seal portion 115. Other configurations are the same as those in the first embodiment. Weather strip 2 of this example
Is configured as above, so at the time of assembly,
After fixing the sash fixing piece 111 of the molding part 11 to the door sash 93, the fitting part 121 of the seal part 12 is fitted and fixed to the sash fixing piece 111. Next, the bent part 1102 of the molding part 11 is bent inside the main body part 1101.
Then, the engaging protrusion 262 of the molding portion 11 is engaged with the engaging concave portion 261 of the seal portion 12. This gives
The main body 1101 and the bent part 1102 of the molding part 11
And the seal portion 12 can be integrally fixed.
Further, as described above, the weather strip 2 is divided into a molding portion 11 and a sealing portion 12, and the molding portion 11 and the sealing portion 12 are further divided.
Is provided with a bendable portion 1102 so that the flock 29 can be easily applied to a desired portion. Further, the same operation and effect as in the first embodiment can be obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an automotive weather strip according to a first embodiment, and is a sectional view taken along line AA in FIG.

FIG. 2 is an exploded vertical sectional view of the weather strip according to the first embodiment.

FIG. 3 is a perspective view of an automobile equipped with the weather strip according to the first embodiment.

FIG. 4 is a perspective view of a door on which the weather strip according to the first embodiment is mounted.

FIG. 5 is a perspective view of a molding portion of the weather strip according to the first embodiment.

FIG. 6 is a perspective view of a sealing portion of the weather strip according to the first embodiment.

FIG. 7 is a detailed view of a seal portion according to the first embodiment.

FIG. 8 is a longitudinal sectional view of a weather strip according to the second embodiment.

FIG. 9 is an exploded longitudinal sectional view of a weather strip according to a second embodiment.

FIG. 10 is a longitudinal sectional view of a conventional weatherstrip.

[Explanation of symbols]

1. . . Weatherstrip, 11. . . Mall part, 1
101. . . Body part, 1102. . . Bent part, 11
03. . . Connecting part, 111. . . Sash fixing piece, 11
2. . . Top piece, 113. . . Body seal part, 11
4. . . Glass roll, 1140. . . Design, 11
5. . . Hollow seal portion, 1161. . . Engaging recess, 11
62. . . Locking projections, 12. . . Seal part, 12
1. . . Fitting part, 122. . . Seal lip, 2. . .
Weather strip, 22. . . Seal lip, 26
1. . . Engaging recess, 262. . . Locking projection, 92. . .
Door glass, 93. . . Door sash, 94. . . Body,

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60J 5/04 B60R 13/04 B60R 13/06

Claims (2)

(57) [Claims] 1. A mold part having a design surface on an outer surface and a seal part sealing a side surface of a door glass are divided into two parts.
An automobile weatherstrip fixed to an outer surface of a door sash , wherein the molding section includes a main body, a body seal provided on the main body, which is in contact with a body, and a connecting part connected to the main body.
Bending part connected so as to be able to be bent, and the bending
And a sash fixing piece for fixing to the outer surface of the door sash, the seal portion being provided with a seal lip sliding on the side surface of the door glass. And a fitting part for fitting and fixing to a sash fixing piece of a molding part. 2. The method according to claim 1, wherein the bent portion is
The bent portion is fixedly engaged with the molding portion or the sealing portion.
Having a locking projection for fixing
Weather strip for moving vehicles.