JP2006232144A - Weather strip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weather strip structured so that an ornamental cloth is affixed at least to a seal part and having a die-molding part mating with at least one corner part, capable of enhancing its outside appearance to a great extent. <P>SOLUTION: The weather strip 4 is attached to the door opening peripheral edge on the body side mating with an automobile door. The body 41 of the weather strip is furnished with a trim part, a hollow seal part, etc. The ornamental cloth 42 is affixed alongside the longitudinal direction of the weather strip body 41 in such a way as covering the seal part etc. The ornamental cloth 42 is formed being folded viewed in the longitudinal direction in such a way as mating with the corner part (die-molding part 45). In the part mating with the extrusion molding parts 43 and 44, it has a certain width, and has a larger width in the part mating with the die-molding part 45. In the part mating with the die-molding part 45, cuts 42a and 42b are formed on both sides. There is no risk at affixation that an unreasonable force acts or wrinkles are generated. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a weather strip including a weather strip body having a trim portion and a hollow seal portion, and a decorative cloth affixed along the longitudinal direction to at least the surface of the seal portion.

  Generally, a weather strip is provided on the periphery of a door opening of a vehicle such as an automobile. The weather strip includes a trim portion having a substantially U-shaped cross section that is held by being fitted to a flange at the peripheral edge of the door opening, and a hollow seal portion provided so as to protrude from the trim portion. In some cases, a decorative cloth is attached to at least the surface of the seal portion in order to improve the appearance quality.

Conventionally, as a technique for affixing such a decorative cloth, a technique for affixing a decorative cloth together with extrusion molding is also known. There is a technique in which a decorative cloth having a certain width is pasted on a seal portion or the like after forming the portion (see, for example, Patent Document 1).
Japanese Patent Publication No. 8-2744

  However, even with the above technique, when the angle of the corner portion is formed small, it is difficult to stick the decorative cloth well, and there is a problem such as wrinkles and peeling, or another decorative cloth is attached later. There is still a concern that problems such as deterioration in appearance quality due to bonding may occur. In particular, when the corner portion is not formed by bending the extrusion-molded portion but is formed by molding, the corner portion has a small angle, that is, a right angle or an acute angle in many cases. More likely to occur.

  The present invention has been made to solve the above-mentioned problems, and the object thereof is to provide a weather strip in which a decorative cloth is affixed to at least a seal portion and has a molded portion corresponding to at least one corner portion. An object of the present invention is to provide a weather strip that can dramatically improve the appearance quality.

  In the following, each means suitable for solving the above-described object will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

  Means 1. A trim portion having a substantially U-shaped cross section that is held by a flange at the periphery of the door opening of the vehicle, and a hollow seal portion that protrudes from the trim portion and that is pressed against the periphery of the door when the door is closed. A weatherstrip main body comprising an extrusion-molded portion, a mold-molded portion corresponding to at least one corner portion and connecting the ends of the extrusion-molded portion, and at least the seal portion surface along the longitudinal direction A weather strip provided with an affixed decorative cloth, wherein the decorative cloth has a certain width in a portion corresponding to the extrusion molding portion and is in a portion corresponding to the mold forming portion. In the region corresponding to the mold forming portion, the cut portion is formed at least on one side and corresponds to the corner portion. Weather strip, characterized by being bent or curved as viewed in the longitudinal direction so as to.

  According to the means 1, the appearance quality can be improved by the decorative cloth affixed along the longitudinal direction to at least the surface of the weather strip body. However, the weather strip main body is provided with a molding part corresponding to the corner part, and a decorative cloth is also attached to the molding part. Now, in the means 1, the decorative cloth has a certain width at a portion corresponding to the extruded portion having a substantially constant cross-sectional shape, and the portion is stable without any particular difficulty. Can be affixed (without degrading the appearance). Moreover, in the site | part corresponding to a shaping | molding part, it is wider than the said fixed width. Here, the corner portion has a longer cross-sectional circumference due to its bent or curved shape. However, as the width becomes wider, the decorative cloth will spread sufficiently, and it will be applied without difficulty. be able to. In addition, since it is bent or curved when viewed in the longitudinal direction so as to correspond to the corner portion, the followability is improved, and it can be applied more easily. Furthermore, in the site | part corresponding to a shaping | molding part, since the notch | incision is formed in at least one side part, the bias | biasing of the tension | tensile_strength at the time of sticking can be decreased. Therefore, it can be applied even more comfortably. In the weather strip obtained as a result of the synergistic action of the above components, there is no parting line or the like that occurs when a plurality of decorative cloths are bonded together. Experience is given. Further, since wrinkles and the like are not easily generated, it is possible to improve the appearance quality that has never been seen.

  In addition, it is good also as "the width | variety is changing gradually in the site | part corresponding to the said mold forming part so that the width | variety of the site | part corresponding to the bending part of a mold forming part may become the widest." In this case, more appropriate sticking can be secured.

  Mean 2. The weather strip according to means 1, wherein the decorative cloth has a notch formed on both side portions in a portion corresponding to the mold forming portion.

  According to the means 2, in addition to the operational effects described in the means 1, in the part corresponding to the molded part, cuts are formed on both sides. For this reason, the bias of the tension at the time of sticking can be reduced. In addition, both sides of the decorative fabric tend to be less visible from the outside than the central portion in the width direction, and even if a slight overlap or the like occurs on the side, the influence on the appearance quality is very small. I'll do it. As a result, the effects of unreasonable sticking and the suppression of deterioration of the appearance quality are exhibited at the same time.

  Means 3. The weather strip according to means 1 or 2, wherein the cut is formed in a portion excluding a portion corresponding to the seal portion.

  According to the means 3, since the cut is located at a part different from the seal portion, it is easier to further suppress the deterioration of the appearance quality. In addition, it is good also as "the site | part corresponding to the said notch is a site | part covered with a covering (for example, interior members, such as a ceiling board and garnish)." Also in this case, it is possible to suppress deterioration in the appearance quality due to the presence of the cut.

  Means 4. The weather strip according to any one of means 1 to 3, wherein the decorative cloth is affixed after the weather strip main body is formed.

  According to the means 4, since the decorative cloth is applied after the weatherstrip body is formed, the decorative cloth can be applied following the cross-sectional shape, unlike the case where the decorative cloth is applied simultaneously with the extrusion. As a result, problems such as peeling and tearing are unlikely to occur.

  Hereinafter, an embodiment will be described with reference to the drawings.

  As shown in FIG. 2, a weather strip 4 is provided on the periphery of the body-side door opening 3 corresponding to a side door (for example, a front door) 2 on the side of the automobile 1. The weather strip 4 is attached to the periphery of the door opening 3 except the lower part.

  As shown in FIGS. 1 and 3, the weather strip 4 of the present embodiment includes a weather strip main body 41 and a decorative cloth (fabric) 42 attached along the longitudinal direction of the main body 41. .

  First, the basic structure of the weather strip main body 41 will be described. The weather strip main body 41 connects the two extrusion-molded portions 43 and 44 and the ends of the respective extrusion-molded portions 43 and 44, and the rear upper portion. And a molded part 45 corresponding to the corner part.

  The extruded portions 43 and 44 include a trim portion 5 and a seal portion 6. The trim portion 5 includes a connecting portion 13 having a cross-sectional curved shape that connects the vehicle inner side wall 11, the vehicle outer side wall 12, and both side walls 11, 12, and has a substantially U shape as a whole. The trim portion 5 is made of EPDM (ethylene-propylene-diene copolymer) solid rubber, and a metal insert 14 is embedded therein. A plurality of holding lip portions 15 extending toward the inside of the trim portion 5 are integrally formed on the inner surfaces of the vehicle interior side wall 11 and the vehicle exterior side wall 12. Further, the seal portion 6 is provided so as to protrude outward from the vehicle outer side wall 12 and has a hollow shape. The seal portion 6 is made of EPDM sponge rubber.

  Although illustration is omitted here, the mold forming portion 45 basically has the same (similar) cross-sectional structure as the extrusion forming portions 43 and 44, and the trim portion and the seal portion are provided. I have.

  Further, the decorative cloth 42 is adhered along the longitudinal direction of the weather strip 4 with an adhesive so as to cover the seal portion 6 and a part of the connecting portion 13. The decorative cloth 42 is affixed mainly for the purpose of improving the appearance quality (designability). For example, the decorative cloth 42 is adhered to the weather strip body 41 in a state where an adhesive is applied to both sides in the width direction. ing. The material of the decorative cloth 42 is not particularly limited, but, for example, a polyester fiber subjected to a brushed process is preferably employed.

  As shown in FIG. 4, the weather strip 4 described above is attached by fitting the trim portion 5 to the periphery of the door opening 3 on the body side. More specifically, the body includes an inner panel 21 and an outer panel 22, and a flange 23 is basically formed by joining the peripheral portions of both the panels 21 and 22. However, depending on the part, there is no problem even if a plate-like reinforcement is provided between the panels 21 and 22 in order to increase the strength. The weather strip 4 attached as described above is configured such that when the door 2 is closed, the seal portion 6 is crushed and deformed to seal between the door 2 and the body of the automobile 1. .

  Next, characteristic parts of the present embodiment will be described. As shown in FIG. 1, the (single) decorative cloth 42 in the present embodiment is bent in the longitudinal direction so as to correspond to the corner portion (molded portion 45). However, the bending angle β is set larger than the bending angle α of the mold forming portion 45 (set to be expanded), and is attached along the bending angle α of the mold forming portion 45 at the time of sticking. Affixed. Further, the portion corresponding to the extruded portions 43 and 44 has a constant width “H1”, and the portion corresponding to the mold forming portion 45 is wider than the constant width “H1”. And has a maximum width at the corner. Furthermore, in the site | part corresponding to the shaping | molding part 45, the notches 42a and 42b are formed in both sides. The cuts 42 a and 42 b in the present embodiment are formed except for the part corresponding to the hollow seal portion 6. And in the said decorative cloth 42 which has this structure, the parting line (on both sides) after sticking will be located in the substantially the same site | part in any site | part.

  Incidentally, the connecting portion 13 side of the trim portion 5 may be covered with an interior member such as garnish GN as shown by a two-dot chain line in FIG. Accordingly, there is an advantage that one of the cuts 42a and 42b and the parting line are not visually recognized.

  According to the present embodiment configured as described above, the following operational effects can be obtained. That is, the appearance quality is improved by the decorative cloth 42 pasted at least on the surface of the seal strip 6 of the weather strip body 41 along the longitudinal direction. Here, the weather strip main body 41 in the present embodiment includes a mold forming portion 45 corresponding to the corner portion, and the decorative cloth 42 is also attached to the mold forming portion 45. Conventionally, in the case where such a corner portion exists, it is very difficult to apply a single decorative cloth due to excessive stress or wrinkles. In this regard, in the present embodiment, the decorative cloth 42 has a constant width “H1” at a portion corresponding to the extruded portions 42 and 43 having a substantially constant cross-sectional shape. In particular, it can be applied stably without causing any particular difficulty (without deteriorating the appearance). Moreover, in the site | part corresponding to the shaping | molding part 45, it is wider than the said fixed width. Here, the corner portion has a longer cross-sectional circumference due to its bent shape, but the decorative cloth 42 can be sufficiently distributed by the amount of the width, and can be applied without difficulty. be able to. Moreover, since it is bent in the longitudinal direction so as to correspond to the corner portion, the followability is improved, and it can be applied more easily. Furthermore, in the site | part corresponding to the shaping | molding part 45, since the notches 42a and 42b are formed in both sides, the bias | biasing of the tension | tensile_strength at the time of sticking can be decreased. Therefore, it can be applied even more comfortably. In addition, in the weather strip 4 obtained as a result of the synergistic action of the above components, there is no parting line or the like that occurs when a plurality of decorative cloths are bonded together. A sense of unity is given. In addition, since wrinkles and the like are less likely to occur, the appearance quality that has never been seen can be improved dramatically.

  In addition, since the decorative cloth 42 is applied after the weather strip body 41 is formed, the decorative cloth 42 can be applied following the cross-sectional shape, unlike the case where the decorative cloth 42 is applied simultaneously with extrusion molding. As a result, problems such as peeling and tearing are unlikely to occur.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the above embodiment, the case where the decorative cloth 42 is pasted so as to cover the seal portion 6 and a part of the connecting portion 13 is embodied. For example, as shown in FIG. 5, the decorative cloth 42 may be pasted so as to cover the seal portion 6, the connecting portion 13, and the vehicle interior side wall 11.

  (B) Although not particularly shown in the above embodiment, for example, as shown in FIG. 6, a cover lip 17 that extends from the connecting portion 13 toward the inside of the vehicle and covers an end of an interior product (not shown) such as a garnish is provided. It can also be embodied in an integrally formed weatherstrip.

  (C) In the above embodiment, the portion corresponding to the mold forming portion 45 is embodied in the case where the cuts 42a and 42b are formed on both sides, but the cut is made only on one side. It can also be embodied if formed.

  (D) In the above embodiment, the trim portion 5 is made of solid rubber and the seal portion 6 is made of sponge rubber. However, both may be made of the same material. Moreover, although EPDM is illustrated as a material which comprises the weatherstrip main body 41, you may use other rubber materials, such as IR (isoprene rubber) and CR (chloroprene rubber). Moreover, you may comprise with other elastic materials which have rubber-like elasticity, such as an olefin type thermoplastic elastomer (TPO) or a soft polyvinyl chloride.

  (E) In the above embodiment, the weather strip 4 is attached over substantially the entire circumference except for the lower part of the peripheral edge of the door opening 3, but may be attached over the entire circumference. Further, it may not necessarily be the entire circumference or almost the entire circumference, and may be a weather strip that is partially attached, for example.

  (F) The present invention can also be applied to a weather strip in which the insert 14 is omitted.

(A) is a front view which shows the weather strip in one Embodiment, (b) is a front view which shows the decorative fabric affixed on a weather strip main body. It is a perspective view which shows a motor vehicle. It is a fragmentary perspective view which shows a weather strip. It is sectional drawing which shows the attachment state of a weather strip. It is sectional drawing which shows the attachment state of the weather strip in another embodiment. It is sectional drawing which shows the attachment state of the weather strip in another embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Automobile as a vehicle, 2 ... Door, 3 ... Door opening, 4 ... Weather strip, 5 ... Trim part, 6 ... Seal part, 11 ... Car inner side wall, 12 ... Car outer side wall, 13 ... Connection part, 41 ... weather strip main body, 42 ... decorative cloth, 42a, 42b ... cut, 43, 44 ... extrusion molding part, 45 ... mold molding part.

Claims (4)

A trim portion having a substantially U-shaped cross section that is held by a flange at the periphery of the door opening of the vehicle, and a hollow seal portion that protrudes from the trim portion and is pressed against the periphery of the door when the door is closed. A weather strip main body comprising an extrusion molding portion and a mold molding portion that connects the ends of the extrusion molding portion and corresponds to at least one corner portion;
A weather strip provided with a decorative cloth affixed along the longitudinal direction to at least the surface of the seal part,
The decorative cloth is
In the part corresponding to the extruded part, it has a constant width, and in the part corresponding to the mold part, it is wider than the constant width,
And, in the part corresponding to the mold part, a cut is formed in at least one side part,
Moreover, the weather strip is bent or curved when viewed in the longitudinal direction so as to correspond to the corner portion.   2. The weather strip according to claim 1, wherein the decorative cloth has a notch formed on both side portions in a portion corresponding to the mold forming portion.   The weatherstrip according to claim 1 or 2, wherein the cut is formed in a portion excluding a portion corresponding to the seal portion. The weather strip according to any one of claims 1 to 3, wherein the decorative cloth is affixed after the weather strip body is molded.

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