JP2002178771A - Weather strip and its mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weather strip allowing certain positioning in adhering an adhesive double coated tape, accurate and continuous adhesion of the long- sized double coated tape, and adhesion of the double coated tape without problem by a mechanical method having high workability, and its mounting structure. SOLUTION: This weather strip and its mounting structure comprise a first mounting surface 2a mounted on a first mounted surface 10a of a car body by a clip 11, and a second mounting surface 2b mounted on a second mounted surface 10b of the car body by the double coated tape 12. A vertical wall part 2c is formed between the first mounting surface 2a and the second mounting surface 2b, and the first mounting surface 2a and the second mounting surface 2b are steplike.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weatherstrip and a structure for mounting the same, and more particularly, to a weatherstrip mounted to a vehicle body with a clip and double-sided tape and a structure for mounting the same.

[0002]

2. Description of the Related Art When mounting a door constituting a vehicle body of an automobile or the like and a weather strip attached around a door opening to a vehicle body side frame, a door weather strip mounting structure using both a clip and a double-sided tape is used. It is known (for example, Japanese Patent Application Laid-Open No. 9-123760).
Publication). This, in addition to clip mounting,
By using a double-sided adhesive tape together, it is intended to enhance the adhesion of the weather strip to the frame.

[0003] The weatherstrip is attached to a mounting surface of a vehicle-side door frame by a clip and a double-sided adhesive tape (hereinafter, referred to as a double-sided tape). The weatherstrip has a hollow seal portion, a mounting base, and a seal lip, and further includes a clip mounting surface on which a clip is mounted, and a tape mounting surface to which a double-sided tape is pre-bonded. . The hollow seal portion exerts a sealing function by being deformed by being pressed by the door opening frame. In this case, a plurality of clips are attached to the clip attaching surface of the weather strip at a predetermined interval, and then a double-sided tape is attached to the tape attaching surface.

[0004]

However, in the structure of the above-mentioned conventional weather strip, the clip mounting surface and the tape mounting surface are adjacent to each other on the same plane, and when a double-sided tape is adhered to the tape mounting surface. Since positioning between the clips is not particularly provided, a long double-sided tape cannot always be stuck with high accuracy. Then, once the double-sided tape is bent and adhered, it is necessary to peel off the double-sided tape that has been pasted up and start over again, resulting in a large amount of work loss and significantly deteriorating the work efficiency.

[0005] Further, when mechanically and continuously attaching the double-sided tape to the tape mounting surface is performed, a double-sided tape having a strong adhesive force is usually used. The sticking is performed while blowing hot air. However, in the above-described conventional technology, there is a problem that the clip is melted by hot air (200 to 400 ° C.), so that an efficient mechanical sticking operation cannot be performed. , I had to stick double-sided tape by hand.

Accordingly, an object of the present invention is to provide a weather strip that uses both a clip and a double-sided tape, in which the positioning is reliably performed when the double-sided tape is adhered, and the length of the long strip is accurately determined. Another object of the present invention is to provide a weather strip and a mounting structure for the same, which allow continuous application of the double-sided tape and can apply the double-sided tape by a mechanical method having high workability without any trouble.

[0007]

The above object is achieved by the inventions described in the claims. That is, the weather strip according to the present invention is characterized in that the weather strip has a first mounting surface that is mounted on the first mounting surface of the vehicle body by a clip, and a second mounting surface that is mounted on the second mounting surface of the vehicle body by double-sided tape. And a vertical wall portion is formed between the first mounting surface and the second mounting surface, and the first mounting surface and the second mounting surface are stepped.

According to this configuration, the double-sided tape can be adhered along the vertical wall portion, and the position where the double-sided tape is to be adhered is easy, and the adhesion is performed mechanically using the device. Also in this case, the sticking position can be prevented from being shifted, and the long double-sided tape can be continuously attached with high accuracy and good workability. Moreover, even when the weather strip is mounted on a frame or the like on the vehicle body side due to the presence of the vertical wall portion, the positioning thereof is extremely easy, and as a result, the mounting accuracy is improved, which is convenient.

As a result, when attaching the double-sided tape, and when attaching the weather strip to the vehicle body, the positioning is reliably performed, and the long double-sided tape can be continuously attached with high accuracy. It was possible to provide a weatherstrip that could be stuck without any trouble by a mechanical method having high workability, and the mounting accuracy to the vehicle body was improved.

It is preferable that the first mounting surface and the second mounting surface are formed substantially parallel to each other, and a step between the two is greater than the thickness of the double-sided tape and is not more than 10 mm.

[0011] According to this configuration, not only is the positioning ensured, but also in the case where the heat-sealing type double-sided tape is used to firmly adhere to the vehicle body side, the hot air blows against the clip attached to the first attachment surface. Can sufficiently prevent the effects of
Melting the clip can be reliably prevented, which is convenient. The step between the two is more preferably 5 mm or less, and more preferably 2 to 3 mm structurally.

It is preferable that the vertical wall is made of hard rubber.

The weatherstrip is made of a soft material such as foamed rubber in order to enhance the sealing property. However, if the weatherstrip is made of a hard rubber, the other parts and the vertical wall are clearly distinguished from each other, and both sides are made distinct. When the tape is applied by a mechanical method, not only is the initial positioning setting easy, but also during the attaching operation, the tape runs along the hard vertical wall, so the running is more stable and convenient. Is good.

It is preferable that a protrusion is formed on the vertical wall.

According to this configuration, the vertical wall portion and the door frame come into contact with each other, and a sealing effect can be exerted at this location. However, even if the water is partially generated, the sealing property is not impaired, and the water and sound insulation properties can be kept high, which is convenient.

Further, a characteristic structure of the weather strip mounting structure according to the present invention is a structure for mounting the weather strip according to any one of claims 1 to 4 on a vehicle body, wherein the first mounting surface of the weather strip is the first mounting surface. A first attachment surface of the vehicle body is attached by a clip, and a second attachment surface of the weather strip is attached to a second attachment surface of the vehicle body by a double-sided tape.

According to this configuration, the positioning is reliably performed when the double-sided tape is applied, and the long double-sided tape can be continuously applied with high accuracy. It is possible to provide a weather strip mounting structure that can be performed without any trouble by a mechanical method and has improved mounting accuracy to a vehicle body.

[0018]

Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a cross-sectional structure of a weather strip according to the present embodiment, and FIG. 2 shows a cross-section of a mounting structure of the weather strip. FIG. 2A shows the vehicle to which the weatherstrip is attached, FIG.
-A represents a cross-sectional structure.

<First Embodiment> This weather strip W has a hollow seal portion 1, a mounting base portion 2 mounted to a door frame 10, a door-side seal lip 3,
A door opening side seal lip 4 and a clip hollow portion 5 are provided.

The hollow seal portion 1 includes a door opening frame 1
It is pressed by 3 and deformed to exhibit a sealing function. The mounting base 2 includes a first mounting surface (clip mounting surface) 2a that is mounted on the first mounting surface 10a of the door frame 10,
A second mounting surface (tape mounting surface) which is mounted on the second mounting surface 10b of the door frame 10;

The first mounting surface 2a and the second mounting surface 2b are formed stepwise with the vertical wall portion 2c interposed therebetween, and the second mounting surface 2b has a width of 2 to 3 mm with respect to the first mounting surface 2a. It is located with a step d. Correspondingly, the door frame 10
The first mounting surface 10a and the second mounting surface 10 also have a stepped portion 10d, and are similarly formed in steps. With such a configuration, the double-sided tape can be stuck mechanically by running the double-sided tape sticking device described later along the vertical wall portion, and the positioning of the place where the double-sided tape is stuck can be performed. It is easy to prevent the sticking position from shifting, and a long double-sided tape can be continuously stuck with high accuracy and good workability. Further, when the weather strip W is mounted on the door frame 10 due to the presence of the vertical wall portion 2c, the positioning thereof is extremely easy, and as a result, the mounting accuracy is improved.

A clip 11 is provided inside the first mounting surface 2a.
Is formed, into which a head 11a of the clip 11 is inserted. The shape of the clip 11 is shown in FIG.
A head 11a, a shaft 11b having a smaller diameter than the head 11a,
And a claw-shaped locking portion 11c formed at the tip of the shaft portion 11b. Near the door opening of the clip hollow portion 5,
A hollow seal portion 1 is formed.

The clip 11 can be attached to the weatherstrip W by pushing and inserting the head 11a of the clip 11 through a shaft hole formed in the clip hollow portion 5 on the door frame 10 side. A large number of the clips 11 are attached at appropriate intervals along the longitudinal direction of the weather strip W (a direction perpendicular to the paper surface) (only one clip is shown in FIG. 2). Clip 11
Is formed of a resin such as nylon or polyacetal. When the locking portion 11c is inserted into a hole 10c formed in the door frame 10, the locking portion 11c is elastically deformed, so that the locking portion 11c can be attached to the door frame 10. it can.

Next, the structure of the double-sided tape 12 will be described with reference to FIG. The double-sided tape 12 (heat-sealing tape) has a four-layer structure, in which a liner 12a (release paper) and a first
Adhesive layer 12b, acrylic foam tape 12c, second
And an adhesive layer 12d. Second adhesive layer 12d
Is a portion to be attached to the second mounting surface 2b of the weather strip. Then, before attaching the weather strip W to the door frame 10, the weather strip W and the double-sided tape 12 are integrated in advance. When attaching to (attaching to) the door frame 10, the liner 12a is peeled off and attached to the door frame 10 by the first adhesive layer 12b.

The thickness of the double-sided tape 12 is 0.6 to 1.2 m
m, and preferably about 0.8 mm. Of course, the structure of the double-sided tape 12 is not limited to the one shown in FIG. 6, and an appropriate one can be adopted within the frame of the present invention.

<Double-sided Tape Attaching Apparatus> FIG. 5 is a conceptual diagram showing a configuration of a sticking apparatus when the double-sided tape 12 is attached to a weather strip. Weather strip W
After being extruded by a molding device (not shown), the clip 11 is automatically inserted and connected to the mold forming portion to form a loop, and then set in an attaching machine, and transported in the longitudinal direction (direction of arrow C) by the transport mechanism. Is done. A large-diameter cooling and pressing roller 20 and a cooling and pressing roller 2 are provided above the transport path.
The guide roller 21 includes small-diameter guide rollers 21 and 22 circumscribing 0, a supply roller 23, and a jet heater 24 as heating means for supplying hot air.

The double-sided tape 12 is sequentially supplied in the direction of arrow B from a winding body (not shown) wound on a reel, and is held between the end faces of the guide roller 21 and the guide roller 22 in the width direction. Supplied with. Jet heater 2
4 sends hot air of 200 ° C. to 400 ° C. to the second mounting surface 2b of the weather strip and the second adhesive layer 12d of the double-sided tape to incinerate or blow off dust and the like on the surface of the second mounting surface 2b. The adhesive layer 12d is melted and pressed and bonded by the cooling and pressing roller 20. The running of the sticking device is performed along the vertical wall portion 2c, and the double-sided tape 12 is stuck to the second mounting surface 2b with high accuracy.

In this case, the first mounting surface 2a and the second mounting surface 2a
Even when hot air is supplied to the second mounting surface 2b by the vertical wall portion 2c between the first mounting surface 2b and the second mounting surface 2b, the influence of the hot air on the first mounting surface 2a is extremely small, so that the clip 11 does not melt. The step d depends on the shape of the weather strip,
It is preferably set to 10 mm or less, more preferably 5 mm or less.
mm or less, and more preferably 2-3 mm. By doing so, the sealing performance between the door frame and the weather strip W can be improved, and the mounting performance to the door frame can be ensured, which is convenient.

Therefore, there is no problem even if the clip 11 is previously attached to the first attachment surface 2a. Therefore, it is possible to automate the process by extruding the weather strip, attaching the clip, connecting to the molded portion to form a loop, and attaching a double-sided tape by a machine. In addition, degreasing and primer application before the double-sided tape is applied need not be performed, and in this regard, it is possible to contribute to cost reduction. Further, since the first mounting surface 2a and the second mounting surface 2b are located on different step planes, the liner 12a is easily peeled off, and workability is improved.

<Second Embodiment> FIG. 4 shows a weather strip mounting structure according to a second embodiment. The difference from the weather strip mounting structure of the first embodiment is that a hard rubber 14 having low flexibility is integrally formed at a position corresponding to the vertical wall portion 2c between the first mounting surface 2a and the second mounting surface 2b. It is attached to. Other configurations are the same as those of the first embodiment.

With this configuration, when the double-sided tape 11 is applied by running the sticking device, not only can the initial positioning of the device be easily performed, but also the sticking device can be moved along the hard vertical wall portion 2c. Since the traveling is more stable, the double-sided tape 12 is more accurately adhered to the second mounting surface 2b, which is convenient. As the hard rubber 14, various types such as an unfoamed vulcanized rubber and a vulcanized rubber having a low foaming degree are conceivable, and preferably have a hardness of about 50 or more.

[Another Embodiment] (1) In the above embodiment, a protruding portion extending in the longitudinal direction of the weather strip is provided on the vertical wall between the first mounting surface and the second mounting surface. You may. In this case, when the vertical wall portion and the step portion of the door frame come into contact with each other, a sealing effect can be exerted at this portion. However, even if water is partially generated, it is possible to reliably prevent water and sound insulation from being impaired, which is convenient.

The position of the protruding portion may be any of the vertical wall portions, and may be an end portion other than the center portion. The height may be generally about 1 to 4 mm, but is not particularly limited as long as the sealing property with the step can be ensured. Also, the sectional shape is not particularly limited.

(2) In the above-described embodiment, an example was given in which the first mounting surface and the second mounting surface were substantially parallel. However, the two are not necessarily parallel, but are inclined and non-parallel to each other. There may be.

(3) The present invention can be widely applied not only to automobiles but also to openings where high sealing properties are desired.

[Brief description of the drawings]

FIG. 1 is a sectional view of a weather strip according to a first embodiment of the present invention.

2 shows a mounting structure of a weather strip using the weather strip of FIG. 1, and is a cross-sectional view taken along line AA of FIG. 3;

FIG. 3 is a perspective view illustrating an automobile to which a weather strip is attached;

FIG. 4 is a sectional view of a weather strip mounting structure according to a second embodiment of the present invention.

FIG. 5 is a schematic configuration perspective view of a sticking device when sticking a double-sided tape to a weather strip.

FIG. 6 is a diagram illustrating a configuration of a double-sided tape.

[Explanation of symbols]

 2a 1st mounting surface 2b 2nd mounting surface 2c Vertical wall 10a 1st mounting surface 10b 2nd mounting surface 11 Clip 12 Double-sided tape 14 Hard rubber d Step W Weather strip

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2E036 AA01 AA02 AA05 BA07 CA02 DA02 DA07 DA08 DA09 DA14 EB02 EC02 EC05 FA10 FB02 GA05 HA01 3D024 AA02 AA06 AB05 AB17 AB21 AB33 AC09

Claims (5)

[Claims] 1. A weather strip comprising: a first mounting surface attached to a first mounting surface of a vehicle body by a clip; and a second mounting surface mounted to a second mounting surface of the vehicle body by a double-sided tape. A weatherstrip, wherein a vertical wall portion is formed between the first mounting surface and the second mounting surface, and the first mounting surface and the second mounting surface are stepped. 2. The weather strip according to claim 1, wherein the first mounting surface and the second mounting surface are formed substantially in parallel, and a step between the two is greater than the thickness of the double-sided tape and is 10 mm or less. 3. The weatherstrip according to claim 1, wherein the vertical wall portion is formed of hard rubber. 4. The weatherstrip according to claim 1, wherein a protrusion is formed on the vertical wall. 5. A weather strip mounting structure for mounting the weather strip according to claim 1 on a vehicle body, wherein a first mounting surface of the weather strip is clipped to a first mounting surface of the vehicle body. And a second mounting surface of the weather strip is mounted to a second mounting surface of the vehicle body by a double-sided tape.