JP5356761B2 - Door weather strip mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a door weather strip capable of restraining an increase in cost when being installed, and preventing a trouble due to a position displacement. <P>SOLUTION: The weather strip 11 having a mounting base 12 and a seal part 13 is attached in accordance with a wheel-arch part of a rear door. The mounting base 12 includes: a bottom-wall part 14 fixed with a clip 41 so that the bottom-wall part 14 almost abuts on a periphery side surface 30a of a door panel 30; a periphery wall part 15 positioned on the outer circumference side relative to the bottom-wall part 14; a vehicle exterior sidewall part 16 which is almost perpendicular to the bottom-wall part 14, and extends along an opposed internal surface of a panel part 30b of the door panel 30; and a vehicle interior sidewall part 17 positioned on the vehicle interior side relative to the vehicle exterior sidewall part 16. The mounting base 12 is almost rectangular in its cross section. All portions except the bottom-wall part 14 is made of sponge material, and the bottom-wall part 14 is made of solid material. A truss wall part 51 is provided in the mounting base 12, and a notch 52 is provided in an articulating part between the periphery wall part 15 and the vehicle interior sidewall part 17. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a door weather strip mounting structure that is mounted corresponding to, for example, a door panel edge portion including a wheel arch portion of a door panel of a rear door.

  In general, a door weather strip is attached to the peripheral portion of the vehicle door. In particular, in the rear door, there is a portion called a wheel arch corresponding to the rear wheel, and a weather strip is attached corresponding to the wheel arch portion (see, for example, Patent Document 1).

  When attaching a weather strip corresponding to a wheel arch part, first, a method of attaching a door panel via a double-sided adhesive tape is conceivable. However, in the case of attaching with a double-sided adhesive tape, the cost is increased, so the feasibility is poor.

Therefore, for example, as shown in FIG. 7, the weather strip 82 is brought into contact with the outer peripheral side surface of the door panel 81, and attached with a clip 83 at a predetermined interval in the longitudinal direction of the weather strip 82. It is possible. According to this method, it is difficult to increase the cost as compared with the case of using a double-sided adhesive tape. That is, in consideration of cost, attachment using a clip is advantageous.
Japanese Patent Laid-Open No. 7-101244

  By the way, as shown to Fig.6 (a), the wheel arch part 84 mentioned above has comprised the curved shape. For this reason, as shown in FIG.6 (b), in the site | part corresponding to the wheel arch part 84 among the weather strips 82, it is necessary to make it curve and attach according to the said arch shape. On the other hand, many portions of the weather strip 82 are formed by extrusion molding, and the portion corresponding to the wheel arch portion 84 is basically linear. For this reason, even if the weather strip 82 is attached following the curved arch portion, when the door is closed, the closing load at that time is adjacent to the attachment base via the hollow seal portion. There is a possibility that the weather strip 82 is displaced to the outer peripheral side (lower side) at the intermediate portion of the clip 83 (see FIG. 6B, a two-dot chain line, FIG. 8). As a result, there is a risk of causing problems such as a decrease in appearance quality and a decrease in sealability due to the deviation.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a door weather strip that can suppress an increase in cost at the time of installation and can prevent problems caused by misalignment. It is to provide a mounting structure.

  Hereinafter, each means suitable for solving the above problem 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. Of the door panel of an automobile door, it is attached corresponding to the edge part of the door panel including the wheel arch part, and swells toward the inside of the vehicle from the mounting base and from the mounting base. A door weather strip mounting structure having a hollow seal portion capable of contacting,
The mounting base is
A bottom wall portion attached with a clip at a predetermined interval along the longitudinal direction in a state of substantially contacting the outer peripheral side surface of the door panel;
An outer peripheral wall portion extending substantially parallel to the bottom wall portion and positioned on the outer peripheral side of the bottom wall portion;
A vehicle outer side wall portion extending substantially opposite to the bottom wall portion and extending opposite to an inner side surface of the panel portion protruding from the outer side portion of the outer peripheral side surface of the door panel to the outer peripheral side;
A vehicle interior side wall portion located on the vehicle inner side with respect to the vehicle outer wall portion, and having a substantially rectangular cross section,
further,
The portion excluding the bottom wall portion is constituted by a sponge material, and the bottom wall portion is constituted by a solid material,
Providing a truss wall portion connecting the connecting portion of the outer peripheral wall portion and the inner wall portion of the vehicle and the connecting portion of the bottom wall portion and the outer wall portion of the vehicle or the vicinity thereof;
In the connecting portion of the outer peripheral wall portion and the vehicle inner wall portion, a notch facing the hollow side of the seal portion is provided ,
The thickness of the truss wall portion is larger than the thickness of the outer peripheral wall portion,
A door weather strip mounting structure characterized in that a design lip is provided which extends from the connecting portion of the outer peripheral wall portion and the vehicle outer wall portion to the vehicle outer side and covers the outer peripheral edge of the panel portion .

  According to the above means 1, since the door weather strip is attached by the clip, it is possible to suppress an increase in cost at the time of attachment as compared with the case where a double-sided adhesive tape or the like is used. On the other hand, since it is configured to be attached with clips at predetermined intervals along the longitudinal direction, the bottom wall portion is away from the outer peripheral side surface of the door panel when the door is closed, etc. There is a concern about so-called shift movement. In this point means 1, since the bottom wall portion is made of a solid material, it is hard to be deformed as compared with a case where it is made of a sponge material. For this reason, a bottom wall part is hard to separate from the outer peripheral side surface of a door panel, and the above-mentioned shift movement does not occur easily. On the other hand, since the portion excluding the bottom wall portion is made of a sponge material, it can be bent without difficulty even when it is bent corresponding to the wheel arch portion. That is, shape followability can be ensured and the mounting state can be stabilized. In addition, a truss wall portion that connects the connecting portion of the outer peripheral wall portion and the vehicle inner wall portion with the connecting portion of the bottom wall portion and the vehicle outer wall portion or the vicinity thereof is provided. For this reason, even if the closing load when the door is closed reaches the mounting base via the seal portion, the mounting base having a substantially rectangular cross section is less likely to be deformed. Therefore, it is possible to prevent the displacement movement due to the deformation of the mounting base more reliably. Furthermore, the notch which faces the hollow side of a seal | sticker part is provided in the connection part of an outer peripheral wall part and a vehicle interior side wall part. Therefore, even if the closing load when the door is closed is transmitted to the seal portion, the load is easily absorbed in the portion where the notch is formed, and hardly reaches the mounting base portion having a substantially rectangular cross section. As a result, it is possible to further prevent the displacement movement, and as a result, it is possible to prevent problems such as a decrease in appearance quality and a decrease in sealing performance due to the displacement.

Further , since the thickness of the truss wall portion is larger than the thickness of the outer peripheral wall portion, the closing load when the door is closed is more easily received by the truss wall portion than the outer peripheral wall portion. Therefore, it is possible to minimize the deformation of the mounting base due to the fact that the closing load is mainly received by the outer peripheral wall, and as a result, it is possible to further prevent the above-described shift movement.

In addition, the design lip closes the gap between the door weather strip and the door panel, and the appearance quality can be improved. On the other hand, if the bottom wall portion moves in a direction away from the outer peripheral side surface of the door panel, the design lip also slides down. Since the movement is effectively suppressed, the design lip can be prevented from sliding down.

Means 2 . The door weather strip mounting structure according to means 1 , wherein the seal portion has a portion with the largest curvature at an inner peripheral portion thereof.

According to the above means 2 , the seal portion can be bent (bent) and crushed and deformed at a portion having the largest curvature of the inner peripheral portion. Therefore, it is possible to reduce the extent that the closing load when the door is closed reaches the outer peripheral wall portion as compared with the case where the seal portion is crushed and deformed equally in the vertical direction. Also in this respect, the deformation of the mounting base can be minimized, and as a result, the above-described displacement movement can be made more difficult to occur.

Moreover, you may comprise like the following means 3 .

Means 3 . One end of the seal portion is connected to a connecting portion of the bottom wall portion and the vehicle interior side wall portion, and the other end of the seal portion is connected to a connection portion of the outer peripheral wall portion and the vehicle interior side wall portion. The door weather strip mounting structure according to claim 1 or 2 .

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, a front door 2 and a rear door 3 are provided in an automobile 1 so as to be openable and closable, and door weather strips are mounted so as to correspond to the peripheral portions of the doors 2 and 3. Yes. In particular, the rear door 3 has a portion called a wheel arch portion 4 corresponding to the rear wheel. As shown in FIG. 2, in this embodiment, a door weather strip (hereinafter simply referred to as a weather strip) 11 is attached so as to correspond to the wheel arch portion 4.

  In the present embodiment, the weather strip 11 is attached to the wheel arch portion 4 having a curved shape as described above with a clip 41 (see FIG. 3) at a predetermined interval in the longitudinal direction in a curved state. It has been. By adopting the structure attached with the clip 41 in this way, the increase in cost is suppressed as compared with the case where the double-sided adhesive tape is used.

  The weather strip 11 is made up of extruded portions 21 and 22 formed by extrusion molding, and a portion where the shape of the weather strip 11 needs to be greatly deformed is formed by molding. 23, 24 and 25 (parts with a hatched pattern in the figure). Moreover, the extrusion molding parts 21 and 22 of the weather strip 11 are substantially linear. In this embodiment, since the structure of the extrusion molding part 21 corresponding to the wheel arch part 4 and its attachment structure are characteristic, the structure in the said extrusion molding part 21 and its attachment structure are demonstrated in detail below.

  First, the configuration of the rear door 3 to which the weather strip 11 is attached will be described. As shown in FIGS. 3 and 4, the rear door 3 includes a door panel 30 including an inner panel 31 and an outer panel 32. The inner panel 31 is formed in a crank shape in cross section at the outer peripheral side portion. Thereby, the door panel 30 is formed with an outer peripheral side surface 30a extending in a substantially horizontal direction. Further, the outer side edges of the inner panel 31 and the outer panel 32 are brought into contact with each other, and the outer panel 32 is bent inward. Thereby, the door panel 30 is formed with a thin plate-like panel portion 30b that protrudes to the outer peripheral side. The outer peripheral side surface 30a is formed with clip holes 35 at a predetermined interval in the longitudinal direction.

  On the other hand, the weather strip 11 (extruded portion 21) has an attachment base 12 and a hollow seal portion 13 that bulges from the attachment base 12 toward the vehicle body 5 side. The mounting base portion 12 includes a bottom wall portion 14, an outer peripheral wall portion 15, a vehicle outer side wall portion 16, and a vehicle inner side wall portion 17, and has a substantially rectangular cross section as a whole. A clip hole 14 a is formed in the bottom wall portion 14. The clip 41 is fitted in a state where the clip hole 14a and the clip hole 35 on the outer peripheral side surface 30a are aligned. As a result, the bottom wall portion 14 is attached in a state where it substantially contacts the outer peripheral side surface 30 a of the door panel 30. The outer peripheral wall portion 15 extends substantially parallel to the bottom wall portion 14 and is located on the outer peripheral side with respect to the bottom wall portion 14. The vehicle outer wall 16 extends substantially perpendicular to the bottom wall 14 and faces the inner surface of the panel 30b of the door panel 30. Further, the vehicle interior side wall portion 17 is located on the vehicle interior side with respect to the vehicle exterior wall portion 16.

  In the present embodiment, the design lip 18 is formed so as to extend from the connecting portion of the outer peripheral wall portion 15 and the vehicle outer wall portion 16 to the vehicle outer side. The design lip 18 covers the outer peripheral edge of the panel portion 30b.

  In the present embodiment, the portion of the weather strip 11 excluding the bottom wall portion 14 is made of a sponge material (EPDM sponge rubber), and the bottom wall portion is made of a solid material (EPDM solid rubber). .

  Further, the connecting portion of the outer peripheral wall portion 15 and the vehicle inner wall portion 17 and the vicinity of the connecting portion of the bottom wall portion 14 and the outer vehicle wall portion 16 (the vehicle outer wall portion 16 side) are connected to each other so as to connect the truss wall portion. 51 is provided. In particular, in the present embodiment, the thickness t1 of the truss wall portion 51 is set larger than the thickness t2 of the outer peripheral wall portion 15.

  Furthermore, in this embodiment, the notch 52 which faces the hollow part 13a side of the said seal part 13 is provided in the connection part of the outer peripheral wall part 15 and the vehicle interior side wall part 17. As shown in FIG.

  In addition, the seal portion 13 has a portion (bent portion) 53 having the largest curvature on the inner peripheral side (upper side in the drawing), and when the seal portion 13 is crushed and deformed, the bent portion 53 is easily bent and deformed.

  Next, the effect of this embodiment comprised as mentioned above is demonstrated.

  As described above, since the configuration in which the weather strip 11 is attached by the clip 41 is employed, it is possible to suppress an increase in the cost at the time of attachment compared to the case of using a double-sided adhesive tape or the like.

  On the other hand, since the weather strip 11 is configured to be attached with the clip 41 at a predetermined interval along the longitudinal direction, the bottom wall portion 14 is formed at a portion where the clip 41 does not exist when the rear door 3 is closed. The so-called shift movement that moves away from the outer peripheral side surface 30a of the door panel 30 is a concern. In this respect, since the bottom wall portion 14 is made of EPDM solid rubber, it is hard to be deformed as compared with the case where it is made of a sponge material. For this reason, the bottom wall portion 14 is unlikely to be separated from the outer peripheral side surface 30a of the door panel 30, and the above-described displacement movement is unlikely to occur. On the other hand, since all the parts except the bottom wall part 14 are made of EPDM sponge rubber, even if the part is curved corresponding to the wheel arch part 4, the part can be reasonably curved. That is, shape followability can be ensured and the mounting state can be stabilized.

  Moreover, in this embodiment, the truss wall part 51 is provided in the attachment base 12 which makes a substantially rectangular shape. For this reason, as shown in FIG. 5, even when the closing load when the rear door 3 is closed reaches the mounting base 12 via the seal portion 13, the mounting base 12 having a substantially rectangular cross section is unlikely to be deformed. Accordingly, it is possible to prevent the displacement movement caused by the deformation of the mounting base 12 more reliably. In particular, since the thickness t 1 of the truss wall portion 51 is larger than the thickness t 2 of the outer peripheral wall portion 15, it is easier for the truss wall portion 51 to receive a closing load than the outer peripheral wall portion 15. Therefore, the deformation of the mounting base 12 can be minimized, and as a result, the above-described displacement movement can be made more difficult to occur.

  Further, a notch 52 facing the hollow portion 13 a side of the seal portion 13 is provided in a connecting portion between the outer peripheral wall portion 15 and the vehicle inner wall portion 17. Therefore, even if the closing load when the rear door 3 is closed is transmitted to the seal portion 13, the load is easily absorbed in the portion where the notch 52 is formed, and hardly reaches the mounting base portion 12 having a substantially rectangular cross section. As a result, it is possible to further prevent the displacement movement, and as a result, it is possible to prevent problems such as a decrease in appearance quality and a decrease in sealing performance due to the displacement.

  In addition, the seal portion 13 can be bent and deformed at the bent portion 53 at the inner peripheral side portion. Therefore, the extent to which the closing load reaches the outer peripheral wall portion 15 can be reduced as compared with the case where the seal portion 13 is crushed and deformed equally in the vertical direction. Also in this respect, the deformation of the mounting base 12 can be minimized, and as a result, the above-described shift movement can be made more difficult 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) Although the thickness t1 of the truss wall portion 51 is configured to be larger than the thickness t2 of the outer peripheral wall portion 15 in the above-described embodiment, this need not necessarily be the case.

  (B) The cross-sectional shape of the weather strip is not necessarily limited to that of the above embodiment. Therefore, for example, the seal portion 13 may be of a type that does not have the bent portion 53. It can also be embodied in a weather strip of the type that does not have the design lip 18. Furthermore, it can also be embodied in a weather strip of a type having a bridge portion that partitions the hollow portion.

  (C) In the above embodiment, the embodiment is embodied in a weather strip made up of two extrusion parts 21, 22 and three mold parts 23, 24, 25. The present invention may be embodied in a weather strip made up of the provided molded part, or in a weather strip made up of other patterns. Further, the weather strip may be embodied to be provided on the entire periphery of the rear door.

  (D) 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.

  (E) The shape of the notch 52 is not limited to a circular arc shape in section, and may be, for example, a substantially V-shaped cross section.

It is a perspective view which shows the motor vehicle and rear door in one Embodiment. It is a side surface schematic diagram which shows the weather strip attached corresponding to a wheel arch part. It is the JJ sectional view taken on the line of FIG. 2 which shows the attachment structure of a weather strip. It is the KK sectional view taken on the line of FIG. 2 which shows the attachment structure of a weather strip. It is sectional drawing of the weather strip which shows the state to which the closing load was added. It is a figure explaining a prior art, (a) is a schematic diagram which shows a wheel arch part, (b) is a schematic diagram which shows the weather strip attached to a wheel arch part in (alpha) part of (a). is there. It is sectional drawing which shows the state in which the weather strip was attached with the clip in a prior art. It is a figure for demonstrating the conventional malfunction, Comprising: It is sectional drawing which shows the site | part which does not have a clip.

DESCRIPTION OF SYMBOLS 3 ... Rear door, 4 ... Wheel arch part, 5 ... Vehicle main body, 11 ... (door) weather strip, 12 ... Mounting base, 13 ... Sealing part, 14 ... Bottom wall part, 15 ... Outer wall part, 16 ... Outer side of vehicle Wall part 17 ... Car interior side wall part 18 ... Design lip, 30 ... Door panel, 30a ... Outer wall surface, 30b ... Panel part, 41 ... Clip, 51 ... Truss wall part, 52 ... Notch, 53 ... Bending part.

Claims (3)

Of the door panel of an automobile door, it is attached corresponding to the edge part of the door panel including the wheel arch part, and swells toward the inside of the vehicle from the mounting base and from the mounting base. A door weather strip mounting structure having a hollow seal portion capable of contacting,
The mounting base is
A bottom wall portion attached with a clip at a predetermined interval along the longitudinal direction in a state of substantially contacting the outer peripheral side surface of the door panel;
An outer peripheral wall portion extending substantially parallel to the bottom wall portion and positioned on the outer peripheral side of the bottom wall portion;
A vehicle outer side wall portion extending substantially opposite to the bottom wall portion and extending opposite to an inner side surface of the panel portion protruding from the outer side portion of the outer peripheral side surface of the door panel to the outer peripheral side;
A vehicle interior side wall portion located on the vehicle inner side with respect to the vehicle outer wall portion, and having a substantially rectangular cross section,
further,
The portion excluding the bottom wall portion is constituted by a sponge material, and the bottom wall portion is constituted by a solid material,
Providing a truss wall portion connecting the connecting portion of the outer peripheral wall portion and the inner wall portion of the vehicle and the connecting portion of the bottom wall portion and the outer wall portion of the vehicle or the vicinity thereof;
In the connecting portion of the outer peripheral wall portion and the vehicle inner wall portion, a notch facing the hollow side of the seal portion is provided ,
The thickness of the truss wall portion is larger than the thickness of the outer peripheral wall portion,
A door weather strip mounting structure characterized in that a design lip is provided which extends from the connecting portion of the outer peripheral wall portion and the vehicle outer wall portion to the vehicle outer side and covers the outer peripheral edge of the panel portion . The door weather strip mounting structure according to claim 1 , wherein the seal portion has a portion with the largest curvature at an inner peripheral portion thereof. One end of the seal portion is connected to a connecting portion of the bottom wall portion and the vehicle interior side wall portion, and the other end of the seal portion is connected to a connection portion of the outer peripheral wall portion and the vehicle interior side wall portion. The door weather strip mounting structure according to claim 1 or 2 .

Images