JP6059925B2 - Door weather strip - Google Patents

Description

  The present invention relates to a door weather strip that is attached to a wheel arch of an automobile door.

  Generally, a door weather strip is attached to the peripheral portion of a door for an automobile. In particular, the rear door has a curved portion called a wheel arch corresponding to the rear wheel, and a door weather strip is also attached to the wheel arch (see, for example, Patent Document 1). Further, the door weather strip of Patent Document 1 is attached to a door (door panel) with a clip in order to reduce costs, improve workability, and the like.

JP 2010-76705 A

  However, when the substantially straight door weather strip disclosed in Patent Document 1 is attached in a curved manner following the curved shape of the wheel arch, the door weather strip from the outer peripheral portion of the door panel is attached. There is a concern that the lip extending to the outside of the vehicle may be deformed so as to wave. As a result, the appearance quality may be degraded.

  The present invention has been made in order to solve the above-described problems and the like, and its purpose is to suppress an increase in cost at the time of mounting and to prevent a deterioration in appearance quality. To provide a strip.

  In the following, each means suitable for solving the above-described problems 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 mounting base that is mounted along the peripheral edge of a door panel including a wheel arch among automotive doors, and a hollow seal that bulges from the mounting base toward the inside of the vehicle and presses against an opening edge of the vehicle body when the door is closed. A door weather strip comprising a portion,
The door weather strip is composed of a solid portion made of a solid material and a sponge portion made of a sponge material.
The mounting base is
A bottom wall portion attached in contact with the outer peripheral surface of the door panel by a clip;
An outer peripheral wall portion extending substantially parallel to the bottom wall portion and positioned on the outer peripheral side of the door panel from the bottom wall portion;
A pair of vehicle inner side wall portions and vehicle outer side wall portions connecting between the bottom wall portion and the outer peripheral wall portion;
At least the bottom wall,
A part of the vehicle outer side wall part, a part of the vehicle inner side wall part, and a part of the seal part, which are connected to the bottom wall part, are integrally configured as the solid part,
The peripheral edge of the door panel is covered from the outside of the vehicle, and the connecting portion between the outer peripheral wall and the vehicle outer side wall is arranged outside the vehicle rather than the tip of the garnish where the tip side portion is bent and formed inside the vehicle. And
A lip that extends from the connecting portion of the outer peripheral wall portion to the outer side wall portion of the vehicle or the vicinity thereof to the outer peripheral side of the door panel and press-contacts to the inner peripheral side surface of the door panel at the distal end portion of the garnish that is bent to the inner side of the vehicle is provided. And
The lip is formed so as to be inclined and extend inward of the vehicle, and the tip thereof is configured not to protrude beyond the vehicle inner edge of the garnish tip portion bent to the vehicle inner side. A door weather strip.

  According to the means 1, the connecting portion between the outer peripheral wall portion and the vehicle outer side wall portion of the door weather strip and the vicinity thereof can be covered by the garnish in which the front end portion is bent and formed on the vehicle inner side. Therefore, even if the lip extending from the connection portion between the outer peripheral wall portion and the vehicle outer side wall portion or the vicinity thereof is curved when the door weather strip is curved, such a lip is not deformed. Since it is covered with the tip part of the garnish, it is possible to avoid a situation in which the appearance quality is degraded due to the fact that the wavy deformation part is visually recognized.

  Further, in this means, a lip is provided so as to seal between the door weather strip and the garnish. For this reason, the situation where rainwater, dust, etc. penetrate | invade from the clearance gap between a door weather strip and a garnish can be prevented.

  Furthermore, since the door weather strip is attached with a clip, the cost for attachment can be reduced as compared with the case where a double-sided adhesive tape or the like is used. Moreover, since the bottom wall part and the connection part with the bottom wall part are configured as a solid part, it is less likely to be deformed than when the part is formed of a sponge material. For this reason, when the door is closed or the like, it is possible to prevent a situation in which the bottom wall portion moves in a direction away from the outer peripheral surface of the door panel or the clip comes off. In particular, according to the present means, not only the bottom wall part, but also a part of the vehicle inner side wall part, a part of the vehicle outer side wall part, and a part of the seal part that are connected to the bottom wall part. Since it is configured integrally with the bottom wall portion as a solid portion, the above-mentioned deformation suppression effect is further exerted, and the vehicle inner side wall portion, the vehicle outer side wall portion, and the seal portion are difficult to break. The effect of such as becoming easy to maintain the extension angle from the bottom wall part of this is produced.

  In addition, "the truss wall part which connects between the connection part of the said bottom wall part and the said vehicle outer side wall part or its vicinity part, and the connection part of the said outer peripheral wall part and the said vehicle inner side wall part, or its vicinity part. It is good also as providing. In this case, it is difficult for the mounting base portion to be deformed, and a shift or the like due to the deformation of the mounting base portion can be prevented more reliably.

Mean 2. The seal portion has one end portion in the circumferential direction in the cross section connected to the connecting portion between the bottom wall portion and the vehicle interior side wall portion or its vicinity, and the other end portion in the circumferential direction is connected to the outer peripheral wall portion and the It is connected to the connection part with the vehicle inner side wall part or the vicinity thereof,
2. The door weather strip according to claim 1, wherein the vehicle interior side wall portion extends obliquely outward from the bottom wall portion toward the outer peripheral wall portion.

  According to the means 2, compared with the case where the vehicle interior side wall portion is not inclined, the circumferential length of the seal portion can be relatively increased, and as a result, the seal portion can be easily bent. Therefore, the repulsive force of the seal portion when closing the door can be reduced, and the force required for closing the door can be reduced.

Means 3. The seal portion includes a tilted wall portion extending from the connecting portion of the bottom wall portion and the vehicle interior side wall portion or its vicinity to the vehicle inner side and the door panel inner peripheral side, the outer peripheral wall portion and the vehicle inner side. A seal wall portion that is curved so as to protrude toward the inner side of the vehicle from the connecting portion with the side wall portion or the vicinity thereof to the tip portion of the inclined wall portion;
The door weather strip according to means 1 or 2, wherein the inclined wall portion does not contact the door panel even when the door is closed.

  According to the means 3, when the door is closed, the tilted wall part comes into contact with the door panel, so that the tilted wall part is not further deformed, or the seal wall part passes through the tilted wall part. It is possible to avoid a situation in which the deformation of the seal portion becomes small due to being supported and stretched. As a result, the repulsive force of the seal portion when closing the door can be reduced, and the force required for closing the door can be reduced.

  In addition, as described in the above means 1, the portion of the seal portion that is connected to the bottom wall portion, that is, the root portion of the tilt wall portion is configured as a solid portion, so that the tilt wall portion is relatively easily deformed. A site | part can be located more inside a vehicle. Thereby, even when the door is closed, a configuration in which the inclined wall portion is not brought into contact with the door panel can be realized relatively easily and reliably.

Means 4. The solid part has a specific gravity of 1.1 to 1.4 and an international rubber hardness (IRHD) of 55 ° to 80 °.
The door weather strip according to any one of means 1 to 3, wherein the sponge portion has a specific gravity of 0.5 to 0.8.

  According to the means 4, when the door is closed or the like, the bottom wall portion is prevented from moving in a direction away from the outer peripheral surface of the door panel. The effect of securing and stabilizing the mounting state is more reliably exhibited.

  The means 1 to 4 may be embodied as “door weather strip mounting structure”.

It is a perspective view of a car. It is a side surface schematic diagram which shows the weather strip attached corresponding to a wheel arch. It is the JJ sectional view taken on the line of FIG. 2 which shows the attachment structure of a weather strip. It is sectional drawing which shows the weather strip at the time of a door closing.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, an automobile 1 is provided with a front door 4 and a rear door 5 that can open and close a door opening 3 formed in a body 2. Further, door weather strips for sealing between the doors 4 and 5 and the peripheral portion of the door opening 3 when the doors 4 and 5 are closed are mounted on the peripheral portions of the doors 4 and 5. . In particular, the rear door 5 has a curved portion called a wheel arch 6 corresponding to the rear wheel. In the present embodiment, a door weather strip (hereinafter simply referred to as “weather strip 11”) shown in FIG.

  The weather strip 11 is connected to an extrusion molding portion 12 formed substantially linearly by extrusion molding, and a mold molding portion 13 (FIG. 2 shows a hatched pattern) connected to the upper end portion of the extrusion molding portion 12. Attached part). The weather strip 11 is attached by a clip 15 (see FIG. 3) in a state where the weather strip 11 is curved following the curved shape of the wheel arch 6. FIG. 2 shows a state where the weather strip 11 is bent following the curved shape of the wheel arch 6. Further, a seal portion 22 described later is cut at the lower end portion of the extruded portion 12 for connection and the like.

  As shown in FIGS. 3 and 4, the rear door 5 to which the weather strip 11 is attached includes a door panel 41 including an inner panel 42 and an outer panel 43. The inner panel 42 is formed in a cross-sectional crank shape at the outer peripheral side portion. Thereby, the door panel 41 is formed with an outer peripheral surface 44 extending in a direction intersecting with the outer peripheral direction of the door panel 41 (the thickness direction of the door 5). Further, the outer peripheral side edges of the inner panel 42 and the outer panel 43 are brought into contact with each other, and the outer panel 43 is bent inward so as to overlap the inner side surface of the inner panel 42. Thereby, the door panel 41 is formed with a thin plate-like panel portion 45 protruding to the outer peripheral side. A plurality of clip mounting holes 44a are formed in the outer peripheral surface 44 at a predetermined interval in the longitudinal direction.

  Further, in the present embodiment, a garnish 47 is provided in which the peripheral edge of the door panel 41 is covered from the outside of the vehicle, and the front end portion is bent at the inside of the vehicle. Hereinafter, the tip side portion of the garnish 47 that is bent toward the vehicle interior side is also referred to as a “bending portion 48”.

  On the other hand, the weather strip 11 (extrusion molding portion 12) has an attachment base 21 to which the clip 15 is attached and a bulge from the attachment base 21 toward the vehicle interior (the body 2 side). And a hollow seal portion 22 that is press-contacted to the peripheral portion. The mounting base 21 is attached to the outer peripheral surface 44 of the door panel 41 by the clip 15 in a contact state, extends substantially parallel to the bottom wall 23, and is positioned on the outer peripheral side of the door panel 41 relative to the bottom wall 23. And a pair of vehicle inner side wall portions 25 and a vehicle outer side wall portion 26 that connect the bottom wall portion 23 and the outer peripheral wall portion 24, and has a substantially rectangular cross section as a whole.

  A plurality of clip fixing holes 23 a are formed in the bottom wall portion 23 at predetermined intervals in the longitudinal direction (substantially the same intervals as the formation intervals of the clip mounting holes 44 a on the outer peripheral surface 44). Then, the clip 15 is fixed to the mounting base 21 via each clip fixing hole 23a, and the clip 15 is fitted into the clip mounting hole 44a of the door panel 41, so that the bottom wall portion 23 is fitted to the outer peripheral surface 44 of the door panel 41. The weather strip 11 is attached to the door panel 41 in a substantially abutting state.

  Further, the vehicle outer side wall portion 26 positioned on the vehicle outer side with respect to the vehicle inner side wall portion 25 is substantially orthogonal to the bottom wall portion 23 and extends to face the vehicle inner side surface of the panel portion 45 of the door panel 41. On the other hand, the vehicle inner side wall portion 25 extends from the bottom wall portion 23 toward the outer peripheral wall portion 24 while being slightly inclined toward the vehicle outer side (reducing the distance from the vehicle outer side wall portion 26).

  In addition, there is a truss wall portion 28 that connects a portion near the connecting portion with the bottom wall portion 23 in the vehicle outer side wall portion 26 and a portion near the connecting portion with the outer peripheral wall portion 24 in the vehicle inner side wall portion 25. Is provided. The truss wall portion 28 makes it difficult for the mounting base 21 to be deformed, and can more reliably prevent displacement caused by the deformation of the mounting base 21. The thickness of the truss wall portion 28 is the same as that of the vehicle outer side wall portion 26 and the bottom wall portion 23, and is set to be larger than the thickness of the outer peripheral wall portion 24, the vehicle inner side wall portion 25, and the seal portion 22. . In addition, a sealer 49 is installed between the vehicle outer side wall portion 26 and the panel portion 45 of the door panel 41 so as to fill a gap therebetween.

  The weather strip 11 (extruded portion 12) includes a lip 29 that extends from the connecting portion between the outer peripheral wall portion 24 and the vehicle outer side wall portion 26 to the outer peripheral side of the door panel 41. In the attached state of the weather strip 11, the connecting portion between the outer peripheral wall portion 24 and the vehicle outer side wall portion 26 is more than the front end portion (vehicle inner edge) of the bent portion 48 of the garnish 47 formed to be bent on the vehicle inner side. It is arranged outside the car. In particular, in this embodiment, the vehicle outer side surface of the lip 29 is pressed against the inner peripheral side surface of the door panel 41 of the bent portion 48 of the garnish 47. Further, the tip of the lip 29 that is in pressure contact with the bent portion 48 of the garnish 47 is configured so as not to protrude from the tip of the bent portion 48 to the vehicle interior side. In this way, by providing the lip 29, it is possible to prevent a situation in which rainwater, dust, or the like enters from the gap between the weather strip 11 and the garnish 47. In addition, the lip 29 extends from the mounting base 21 so as to be inclined toward the vehicle inner side so as to be easily tilted and deformed toward the vehicle inner side when pressed by the garnish 47 from the outer peripheral side of the door panel 41.

  The seal portion 22 includes an inclined wall portion 31 that extends from the connecting portion between the bottom wall portion 23 and the vehicle interior side wall portion 25 to the vehicle interior side and the inner peripheral side of the door panel 41, and the outer peripheral wall portion 24 and the vehicle interior side wall portion 25. And a seal wall portion 32 that is curved so as to be convex toward the inside of the vehicle from the connecting portion to the tip end portion of the inclined wall portion 31. Further, the seal portion 22 has the largest curvature at the connecting portion between the inclined wall portion 31 and the seal wall portion 32, which is a portion on the inner peripheral side of the door panel 41, and when the seal portion 22 is crushed and deformed, It is easy to bend and deform at the site. Furthermore, in this embodiment, when the door 5 is opened, a relatively large space is ensured between the tilting wall portion 31 and the inner panel 42 (the general surface of the inner panel 42 and the tilting wall portion 31 are separated from each other). The tilting wall portion 31 is configured not to contact the inner panel 42 even when the door 5 is closed.

  The weather strip 11 (extruded part 12) is made of EPDM (ethylene-propylene-diene copolymer rubber). In particular, the extrusion molding part 12 of this embodiment is constituted by a solid part made of solid EPDM and a sponge part made of sponge EPDM. More specifically, the bottom wall 23, a part of the vehicle outer side wall part 26, a part of the vehicle inner side wall part 25, and a part of the seal part 22 (tilting wall part 31), The part connected to the part 23 is integrally configured as a solid part, and the other part is integrally configured as a sponge part.

  In addition, in order to ensure the shape followability at the time of making the curve according to the curved shape of the wheel arch 6, it is configured as a solid portion among the vehicle outer side wall portion 26, the vehicle inner side wall portion 25, and the tilting wall portion 31. For example, the vehicle outer side wall portion 26 includes a connecting portion with the truss wall portion 28, and the portion on the outer peripheral side of the door panel 41 is configured as a sponge portion. Further, even when the vehicle inner side wall portion 25 and the tilted wall portion 31 are viewed, a range that is the same as or shorter than the formation range of the solid portion in the vehicle outer side wall portion 26 is configured as the solid portion.

  In the present embodiment, the solid portion has a specific gravity of 1.1 to 1.4 (eg, 1.24) and an international rubber hardness (IRHD) of 55 ° to 80 ° (eg, 74 °). It has become. Furthermore, the sponge portion has a specific gravity of 0.5 to 0.8 (for example, 0.65).

  As described in detail above, in the present embodiment, the connecting portion between the outer peripheral wall portion 24 and the vehicle outer side wall portion 26 is the tip portion of the garnish 47 (bending portion 48) in which the tip side portion is bent and formed on the vehicle inner side. It is located outside the car. For this reason, the bent portion 48 of the garnish 47 can cover the connection portion between the outer peripheral wall portion 24 and the vehicle outer side wall portion 26 and the vicinity thereof in the weather strip 11. Therefore, even if the lip 29 extended from the connection portion between the outer peripheral wall portion 24 and the vehicle outer side wall portion 26 is bent in the weather strip 11, the lip 29 is not deformed. Since it is covered with the bent part 48 of the garnish 47, it is possible to avoid a situation in which the appearance quality is deteriorated due to the visually recognized wavy deformation part.

  In this embodiment, the lip 29 is provided so as to seal between the weather strip 11 and the bent portion 48 of the garnish 47. For this reason, the situation where rainwater, dust, etc. penetrate | invade from the clearance gap between the weather strip 11 and the garnish 47 can be prevented.

  Furthermore, since the weather strip 11 is attached with the clip 15, it is possible to reduce the cost for attachment compared with the case where a double-sided adhesive tape or the like is used. Moreover, since the bottom wall part 23 and the part connected to the bottom wall part 23 among the vehicle inner side wall part 25, the vehicle outer side wall part 26, and the seal part 22 are configured as a solid part, such a part is a sponge material. It is hard to deform compared to the case where it is formed with. For this reason, when the door 5 is closed, the bottom wall 23 can be prevented from moving away from the outer peripheral surface 44 of the door panel 41 or the clip 15 being detached. In particular, according to the present embodiment, not only the bottom wall portion 23 but also a part of the vehicle inner side wall portion 25, a part of the vehicle outer side wall portion 26, and a part of the seal portion 22, the bottom wall portion 23. Since the connecting portion is also integrally formed with the bottom wall portion 23 as a solid portion, the above-described deformation suppression effect is further exhibited, and the vehicle inner side wall portion 25, the vehicle outer side wall portion 26, and the seal portion There are effects such as that 22 is difficult to be broken and that it is easy to maintain the angle of extension of each part from the bottom wall 23.

  Further, the vehicle interior side wall portion 25 extends while inclining outward from the bottom wall portion 23 toward the outer peripheral wall portion 24. For this reason, compared with the case where the vehicle interior side wall portion 25 is not inclined, the peripheral length of the hollow seal portion 22 can be relatively increased, and as a result, the seal portion 22 can be easily bent. . Therefore, the repulsive force of the seal portion 22 when closing the door 5 can be reduced, and the force required to close the door 5 can be reduced.

  Further, the inclined wall portion 31 extending from the bottom wall portion 23 to the vehicle inner side and the inner peripheral side of the door panel 41 in the seal portion 22 does not come into contact with the door panel 41 (inner panel 42) even when the door 5 is closed. It is configured. For this reason, when the door 5 is closed, the tilting wall portion 31 abuts against the inner panel 42, so that the tilting wall portion 31 does not cause further deformation, or the seal wall portion 32 is tilted. It is possible to avoid a situation in which the deformation of the seal portion 22 is reduced by being supported and stretched by the inner panel 42 via the. As a result, the repulsive force of the seal portion 22 when closing the door 5 can be reduced, and the effect of reducing the force required for closing the door 5 can be further exhibited.

  In addition, the base part of the inclination wall part 31 is comprised as a solid part, and the site | part which is easy to deform | transform in the inclination wall part 31 can be located more inside a vehicle. Thereby, even when the door 5 is closed, a configuration in which the inclined wall portion 31 is not brought into contact with the door panel 41 can be realized relatively easily and reliably.

  In addition, the solid portion has a specific gravity of 1.1 to 1.4 and IRHD of 55 ° to 80 °, and the sponge portion has a specific gravity of 0.5 to 0.8. For this reason, when the door 5 is closed, the bottom wall 23 is prevented from moving in a direction away from the outer peripheral surface 44 of the door panel 41, and the shape is followed when the wheel arch 6 is curved following the curved shape of the wheel arch 6. Thus, the effect of securing the stability and stabilizing the mounting state is more reliably exhibited.

  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, EPDM is exemplified as a material constituting the weather strip 11, but other rubber materials such as IR (isoprene rubber) and CR (chloroprene rubber) may be used. A resin material such as (olefin-based thermoplastic elastomer) may be used.

  (B) In the above-described embodiment, the embodiment is embodied as a weather strip composed of one extrusion molding section 12 and one mold molding section 13. However, the present invention can also be embodied in a weather strip composed of other patterns. Further, the weather strip may be embodied to be provided on the entire periphery of the door. Furthermore, in the said embodiment, although it is materialized in the weather strip of the rear door 5, even if it is a motor vehicle without a rear door like a freight car etc., if the wheel arch is formed in the door, the door of this door You may apply to a weather strip.

  (C) In the above embodiment, the thickness of the truss wall portion 28 is the same as that of the vehicle outer side wall portion 26 and the bottom wall portion 23 and is greater than the thickness of the outer peripheral wall portion 24, the vehicle inner side wall portion 25, and the seal portion 22. Is set larger, but it is not always necessary.

  DESCRIPTION OF SYMBOLS 1 ... Automobile, 2 ... Body, 3 ... Door opening, 5 ... Rear door, 6 ... Wheel arch, 11 ... Weather strip, 15 ... Clip, 21 ... Mounting base, 22 ... Sealing part, 23 ... Bottom wall part, 24: outer peripheral wall portion, 25: vehicle inner side wall portion, 26: vehicle outer side wall portion, 29 ... lip, 31 ... tilted wall portion, 32 ... seal wall portion, 41 ... door panel, 44 ... outer peripheral surface, 47 ... garnish, 48 ... bent part.

Claims (4)

A mounting base that is mounted along the peripheral edge of a door panel including a wheel arch among automotive doors, and a hollow seal that bulges from the mounting base toward the inside of the vehicle and presses against an opening edge of the vehicle body when the door is closed. A door weather strip comprising a portion,
The door weather strip is composed of a solid portion made of a solid material and a sponge portion made of a sponge material.
The mounting base is
A bottom wall portion attached in contact with the outer peripheral surface of the door panel by a clip;
An outer peripheral wall portion extending substantially parallel to the bottom wall portion and positioned on the outer peripheral side of the door panel from the bottom wall portion;
A pair of vehicle inner side wall portions and vehicle outer side wall portions connecting between the bottom wall portion and the outer peripheral wall portion;
At least the bottom wall,
A part of the vehicle outer side wall part, a part of the vehicle inner side wall part, and a part of the seal part, which are connected to the bottom wall part, are integrally configured as the solid part,
The peripheral edge of the door panel is covered from the outside of the vehicle, and the connecting portion between the outer peripheral wall and the vehicle outer side wall is arranged outside the vehicle rather than the tip of the garnish where the tip side portion is bent and formed inside the vehicle. And
A lip that extends from the connecting portion of the outer peripheral wall portion to the outer side wall portion of the vehicle or the vicinity thereof to the outer peripheral side of the door panel and press-contacts to the inner peripheral side surface of the door panel at the distal end portion of the garnish that is bent to the inner side of the vehicle is provided. And
The lip is formed so as to be inclined and extend inward of the vehicle, and the tip thereof is configured not to protrude beyond the vehicle inner edge of the garnish tip portion bent to the vehicle inner side. A door weather strip. The seal portion has one end portion in the circumferential direction in the cross section connected to the connecting portion between the bottom wall portion and the vehicle interior side wall portion or its vicinity, and the other end portion in the circumferential direction is connected to the outer peripheral wall portion and the It is connected to the connection part with the vehicle inner side wall part or the vicinity thereof,
2. The door weather strip according to claim 1, wherein the vehicle interior side wall portion extends obliquely outward from the bottom wall portion toward the outer peripheral wall portion. The seal portion includes a tilted wall portion extending from the connecting portion of the bottom wall portion and the vehicle interior side wall portion or its vicinity to the vehicle inner side and the door panel inner peripheral side, the outer peripheral wall portion and the vehicle inner side. A seal wall portion that is curved so as to protrude toward the inner side of the vehicle from the connecting portion with the side wall portion or the vicinity thereof to the tip portion of the inclined wall portion;
The door weather strip according to claim 1 or 2, wherein the inclined wall portion does not contact the door panel even when the door is closed. The solid part has a specific gravity of 1.1 to 1.4 and an international rubber hardness (IRHD) of 55 ° to 80 °.
The door weather strip according to any one of claims 1 to 3, wherein the sponge portion has a specific gravity of 0.5 to 0.8.

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