JP2004106842A - Weather strip and its mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weather strip and its mounting structure capable of precisely positioning a double-coated tape at the time of adhesion, continuously adhering the long double-faced tape with good accuracy, and adhering the double-coated tape without hindrance by a mechanical method with good working efficiency. <P>SOLUTION: This weather strip comprises a first mounting face 2a mounted to a first mounted face 10a of a vehicle body by a clip 11, and a second mounting face 2b mounted to a second mounted face 10b of the vehicle body by a double-coated tape 12. A vertical wall part 2c is formed between the first mounting face 2a and the second mounting face 2b, so that the first mounting face 2a and the second mounting face 2b are formed like a staircase. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to a weatherstrip and a mounting structure thereof, and more particularly, to a weatherstrip mounted to a vehicle body with a clip and double-sided tape, and a mounting structure thereof.

2. Description of the Related Art A door weather strip mounting structure using both a clip and a double-sided tape is known for mounting a door constituting a vehicle body of an automobile or the like and a weather stop mounted around a door opening to a vehicle body side frame ( For example, JP-A-9-123760. This is intended to enhance the adhesion of the weatherstrip to the frame by using a double-sided adhesive tape in addition to the clip attachment.

The weatherstrip is attached to a mounting surface of the vehicle body 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.
JP-A-9-123760

However, in the above-described conventional weatherstrip configuration, the clip mounting surface and the tape mounting surface are adjacent to each other on the same plane, and positioning between the clips is particularly provided when the double-sided tape is attached to the tape mounting surface. Therefore, 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.

Furthermore, when mechanically and continuously applying the double-sided tape to the tape mounting surface, use a double-sided tape with strong adhesive force and usually blow hot air due to the use of a heat-sealing type tape. However, in the above-described conventional technique, there is a problem that the clip is melted by hot air (200 to 400 ° C.), and thus it is not possible to carry out an efficient mechanical attaching operation, and the manual operation is performed. I had to stick double-sided tape.

Therefore, an object of the present invention is to provide a weather strip that uses both a clip and a double-sided tape in view of the above-described problems of the related art, and that the positioning is reliably performed when the double-sided tape is attached, and that a long double-sided tape with high accuracy is obtained. It is an object of the present invention to provide a weather strip and a mounting structure for the same, which enable continuous application of a double-sided tape and can apply a double-sided tape by a mechanical method with high workability without any trouble.

  The above object is achieved by the invention described in each claim. 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, the positioning of the place where the double-sided tape is adhered is easy, and even when the attachment is performed mechanically using the device. Therefore, it is possible to prevent the sticking position from being shifted, and to continuously stick the long double-sided tape 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 even 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 precision, and the double-sided tape is attached. A weatherstrip which can be performed without difficulty by a mechanical method having high workability, and in which the mounting accuracy to the vehicle body is improved.

It is preferable that the first mounting surface and the second mounting surface are formed substantially in parallel, and the step between them is more than the thickness of the double-sided tape and 10 mm or less.

According to this configuration, not only is positioning performed reliably, but also in the case of firmly adhering to the vehicle body side using a heat-sealing type double-sided tape, the influence of hot air on the clip attached to the first attachment surface is reduced. This is convenient because it can sufficiently prevent the melting of the clip. The step between the two is more preferably 5 mm or less, and more preferably 2-3 mm structurally.

。 Preferably, the vertical wall portion is formed of hard rubber.

The weatherstrip is made of a soft material such as foamed rubber in order to enhance the sealing properties.However, if the weatherstrip is made of hard rubber, the other parts and the vertical wall are clearly distinguished, and double-sided tape is applied. When the attachment is performed by a mechanical method, not only the initial positioning can be easily set, but also the sticking operation is performed along the hard vertical wall portion, so that the traveling is more stable and convenient.

  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 it occurs, 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 a first surface of the vehicle body. One mounting surface is attached by a clip, and a second mounting surface of the weather strip is attached to a second mounting 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, and the double-sided tape is attached by a mechanical method with high workability. Accordingly, it is possible to provide a weather strip mounting structure that can be performed without any trouble and that has improved mounting accuracy to the vehicle body.

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. 2 shows a cross-sectional structure taken along the line AA of FIG. 3 showing an automobile to which a weather strip is attached.

<First embodiment>
The weather strip W includes a hollow seal portion 1, a mounting base 2 attached to the door frame 10, a door-side seal lip 3, a door opening-side seal lip 4, and a clip hollow portion 5.

(4) The hollow seal portion 1 is pressed by the door opening frame 13 and deforms to exhibit a sealing function. The mounting base 2 has a first mounting surface (clip mounting surface) 2a mounted on the first mounting surface 10a of the door frame 10 and a second mounting surface mounted on the second mounting surface 10b of the door frame 10. Surface (tape mounting surface).

The first mounting surface 2a and the second mounting surface 2b are formed stepwise with the vertical wall portion 2c therebetween, and the second mounting surface 2b has a step d of 2 to 3 mm with respect to the first mounting surface 2a. positioned. Correspondingly, the first mounting surface 10a and the second mounting surface 10 of the door frame 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.

ク リ ッ プ A clip hollow portion 5 for inserting the clip 11 is formed inside the first mounting surface 2a, and the head 11a of the clip 11 is inserted into the hollow portion 5. The shape of the clip 11 is shown in FIG. 2 and includes 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 11b. ing. The hollow seal portion 1 is formed near the door opening of the clip hollow portion 5.

ク リ ッ プ The clip 11 can be attached to the weatherstrip W by pushing and inserting the head 11 a of the clip 11 through a shaft hole formed on the door frame 10 side of the clip hollow portion 5. 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). The clip 11 is formed of a resin such as nylon or polyacetal, and the locking portion 11c is elastically deformed by inserting the locking portion 11c into a hole 10c formed in the door frame 10, and is attached to the door frame 10. be able to.

Next, the configuration of the double-sided tape 12 will be described with reference to FIG. This double-sided tape 12 (heat-sealing tape) has a four-layer structure, and is composed of a liner 12a (release paper), a first adhesive layer 12b, an acrylic foam tape 12c, and a second adhesive layer 12d in this order. . The 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 about 0.6 to 1.2 mm, 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 sticking device>
FIG. 5 is a conceptual diagram showing a configuration of an attaching device when attaching the double-sided tape 12 to the weather strip. After the weather strip W is extruded and formed 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 on an attaching machine. ). A large-diameter cooling / compression roller 20, small-diameter guide rollers 21 and 22 circumscribing the cooling / compression roller 20, a supply roller 23, and a jet heater 24 serving as heating means for supplying hot air are provided above the transport path. It has.

The double-sided tape 12 is sequentially supplied in the direction of arrow B from a take-up body (not shown) wound on a reel, and supplied in a state where the width direction thereof is sandwiched between the end surface of the guide roller 21 and the end surface of the guide roller 22. You. The jet heater 24 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 second adhesive layer 12 d is melted and pressed and adhered 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, even if hot air is supplied to the second mounting surface 2b by the vertical wall portion 2c between the first mounting surface 2a and the second mounting surface 2b, the influence of the hot air on the first mounting surface 2a is extremely small. Therefore, the clip 11 does not melt. The step d depends on the shape of the weather strip, but is preferably 10 mm or less, more preferably 5 mm or less, and further preferably 2 to 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 attached to the first attachment surface 2a in advance. 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 the 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, not only can the initial positioning of the device be facilitated when the double-sided tape 11 is applied by running the sticking device, but also the running of the sticking device along the hard vertical wall portion 2c causes Is more stable, so that the double-sided tape 12 is more accurately attached 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 protrusion extending in the longitudinal direction of the weather strip may be provided on the vertical wall between the first mounting surface and the second mounting surface. 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 has been described in which the first mounting surface and the second mounting surface are substantially parallel. However, the two are not necessarily parallel, and may be inclined and non-parallel to each other. Good.
(3) The present invention can be widely applied not only to automobiles but also to openings where high sealing properties are desired.

Sectional view of the weather strip according to the first embodiment of the present invention. FIG. 3 shows a weather strip mounting structure using the weather strip of FIG. 1, and is a cross-sectional view taken along line AA of FIG. 3. A perspective view illustrating an automobile to which a weather strip is attached. Sectional view of a weather strip mounting structure according to a second embodiment of the present invention. Schematic configuration perspective view of a sticking device when sticking a double-sided tape to a weather strip Diagram for explaining the structure of double-sided tape

Explanation of reference numerals

2a first mounting surface 2b second mounting surface 2c vertical wall portion 10a first mounting surface 10b second mounting surface 11 clip 12 double-sided tape 14 hard rubber d step W weather strip

Claims (5)

A weather strip having a first mounting surface attached to a first mounting surface of a vehicle body by a clip and a second mounting surface attached 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. (4) The weather strip according to (1), wherein 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 10 mm or less. (3) The weatherstrip according to (1) or (2), wherein the vertical wall portion is formed of hard rubber. ウ ェ The weatherstrip according to any one of claims 1 to 3, wherein a protrusion is formed on the vertical wall. A weather strip mounting structure for mounting the weather strip according to any one of claims 1 to 4 to a vehicle body, wherein a first mounting surface of the weather strip is mounted to a first mounting surface of the vehicle body by a clip, A weatherstrip mounting structure in which a second mounting surface of the weatherstrip is mounted to a second mounting surface of the vehicle body with a double-sided tape.

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