JP2003104068A - Mounting structure of weather strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a weather strip capable of preventing degradation of mounting workability and a falling. SOLUTION: The weather strip 1 comprises a substantially plate-like base part 8 that is mounted to a flange 5 at the circumferential edge of a door opening 4 of an automobile 2 and is along the flange 5 and a hollow seal part 10. A hole 20 is formed in the base part 8 of the weather strip 1, and a clip 21 is disposed correspondingly to the hole 20. An outer panel 32 of the flange 5 is provided with a mounting hole 35, and an inner panel 31 and reinforcements 33 and 34 are provided with large diameter holes 36, 37, and 38 with a diameter larger than that of the mounting hole 35. The clip 21 is engaged with the mounting hole 35, thereby mounting the weather strip 1. In mounting, the weather strip 1 can be mounted with a certain insert force, and is certainly locked and fixed to the flange 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip provided around a door opening of a vehicle.

[0002]

2. Description of the Related Art Generally, a weather strip made of a rubber material such as EPDM is provided on the periphery of a door opening of a vehicle such as an automobile. As shown in FIG. 5, the weather strip 41 includes a trim portion 43 having a substantially U-shaped cross section which is retained by being fitted into the flange 42 at the peripheral edge of the door, and a hollow seal provided so as to project from the trim portion 43. And a section 44. Trim part 43
A metal insert 45 for retaining the U-shape is embedded in the inside. A holding lip portion 46 extending inward is integrally formed on the inner surface of the side wall of the trim portion 43. When attaching the weather strip 41, the trim portion 43 is fitted into the flange 42, and the attached state is maintained based on the elastic force of the holding lip portion 46. When the door is closed, the edge portion of the door abuts the seal portion 44, and the seal portion 44 is crushed and deformed, thereby sealing between the door and the door opening peripheral edge (body).

[0003]

However, the thickness of the flange 42 on the side where it is attached may vary depending on the part. In this case, the trim section 43 is generally used.
Since the cross-sectional shape is always constant, the stress (insertion load) at the time of fitting becomes large with respect to the portion where the thickness of the flange 42 is large, and the workability at the time of mounting deteriorates. On the other hand, in the portion where the thickness of the flange 42 is small, the elastic force of the holding lip portion 46 is small, and the weather strip 41 is likely to fall off the flange 42.

The present invention has been made in order to solve the above problems, and an object thereof is to provide a weather strip mounting structure capable of preventing deterioration of workability at the time of mounting and preventing falling. To provide.

[0005]

Means for Solving the Problems and Effects Thereof The characteristic means for achieving the above object will be described below. Also,
Characteristic actions and effects of each means will be described as necessary.

Means 1. Attachment of a weatherstrip having a base portion that abuts along a flange of a vehicle door opening peripheral edge, and a hollow or lip-shaped seal portion that is provided so as to project from the base portion and presses the peripheral edge of the door when the door is closed With a structure, a holding member is provided on the base,
A weather strip mounting structure, characterized in that the weather strip is fixed to the flange by fitting the holding member into a mounting hole formed in the flange.

According to the above-mentioned means 1, with respect to the base portion which is in contact with the side surface along the flange of the door opening periphery of the vehicle, and the hollow or lip-shaped seal portion which projects in a substantially vertical direction from the base portion, By pressing the periphery of the door when the door is closed, the periphery of the door opening of the vehicle and the door are sealed. Further, a holding member is provided at the base of the weather strip, and the shaft of the holding member is inserted into the mounting hole formed in the flange so that the weather strip is securely locked and fixed to the flange. It At this time, even when the thickness of the flange varies depending on the part, unlike the conventional technique in which the trim part is fitted in the flange, the weather strip is fitted by fitting the holding member in the mounting hole. Mounted. Therefore, by appropriately setting the thickness of the holding member and the panel around the mounting hole, it is possible to prevent a situation in which the mounting workability is deteriorated. Moreover, since the holding member is assembled laterally with respect to the flange, and the shaft portion of the holding member penetrates the flange, the trim portion of the weather strip as in the prior art falls off from the flange. It does not happen. Further, since the weather strip is securely attached to the predetermined position of the flange by locking the holding member in the attachment hole, it is possible to prevent a problem that the weather strip moves from the predetermined position in the width direction or the longitudinal direction of the flange.

Means 2. The flange is configured by stacking two or more panels, the mounting hole is formed in a specific panel of the panels, and the panels other than the specific panel correspond to the mounting holes. Means 1 characterized in that a hole having a larger diameter than that of the mounting hole or a notch having a larger width is formed in the portion.
The weatherstrip mounting structure described in.

According to the above-mentioned means 2, since the mounting hole is formed for a specific panel in the flange formed by stacking two or more panels, the thickness of the panel around the mounting hole is constant at any part. It will have thickness.
Therefore, even if the thickness of the flange varies depending on the part due to the difference in the number of panels, the holding member can always be locked to the panel with a constant force, and workability at the time of attaching the holding member can be improved. Can be improved. In addition, since the panel other than the specific panel has a hole having a diameter larger than the mounting hole or a notch having a larger width than the mounting hole, the holding member is fitted into the mounting hole. At this time, it is possible to prevent a situation in which the mounting hole is blocked by a panel other than the specific panel, or the holding member interferes with a panel other than the specific panel to cause a problem in fitting. The specific panel may be "one sheet" or "a plurality of sheets". In the case of a plurality of sheets, when the panels are stacked after the mounting holes are opened, the shapes of the mounting holes can be made uniform by stacking the panels with the positions of the mounting holes strictly aligned. Further, in the case of one sheet, it is possible to prevent a situation in which the mounting hole is blocked by another panel without strictly aligning the overlapping positions. Therefore, it is not necessary to increase the overlay accuracy of the panels so much, and the panel manufacturing efficiency can be improved. Furthermore, in a specific panel in which mounting holes are formed, the plate thickness is always constant, so even if a holding member is required at multiple locations,
It is possible to use holding members of the same size.

Means 3. The weather strip mounting structure according to means 2, wherein the specific panel in which the mounting hole is formed is a panel that abuts on a base portion.

According to the above-mentioned means 3, since the mounting hole is formed in the panel which abuts the base portion, it is not necessary to change the length (shape) of the holding member according to the thickness of the flange as in the case of the means 2. Therefore, as in the case of the means 2, it is possible to suppress the troublesomeness caused by using the auxiliary member having a different shape and the increase in cost due to the preparation of a plurality of types of holding members. Further, since the large-diameter hole of another panel is not interposed between the base portion and the panel, the mounting state can be further stabilized.

Means 4. The weather strip attachment structure according to any one of means 1 to 3, wherein a plurality of the holding members are provided along a longitudinal direction of the weather strip.

According to the above-mentioned means 4, a plurality of holding members provided along the longitudinal direction of the weather strip are mounted in predetermined mounting holes. Therefore, the weather strip is securely attached to the predetermined position of the flange and does not move from the predetermined position in the longitudinal direction of the flange.

Means 5. 5. The weather strip mounting structure according to any one of means 1 to 4, wherein the base portion has a substantially flat plate shape.

According to the above-mentioned means 5, the base is not substantially U-shaped in cross section like the conventional trim part which is fitted and mounted on the flange, but the base is substantially flat and only on one wall surface of the flange. Since it is compatible, the volume of the weather strip can be made small. As a result, the weight of the entire weather strip can be reduced.

Means 6. A cover lip extending in a direction opposite to the seal portion from the flange tip side is connected to the base portion, and a support portion for suppressing deformation of the connection portion is provided in the vicinity of the connection portion between the base portion and the cover lip. 7. The weather strip mounting structure according to the means 5, which is provided.

According to the above means 6, the end portion of the interior article or the like is covered by the cover lip extending from the front end side of the flange of the base portion in the direction opposite to the seal portion, and the appearance quality is improved. Further, since the supporting portion is provided in the vicinity of the connecting portion between the base portion and the cover lip, deformation of the connecting portion is suppressed, and the problem that the cover lip floats up from the interior parts and the like and deteriorates the appearance is suppressed. You can

Means 7. 7. The weather strip mounting structure according to any one of means 1 to 6, wherein the weather strip includes a recess capable of accommodating the tip of the flange.

According to the above-mentioned means 7, since the weather strip is formed with the concave portion capable of accommodating the tip end of the flange, the tip end of the flange is accommodated in the concave portion at the time of mounting, so that the weather strip is attached to the flange. The positioning can be easily performed, and further, the mounting state can be further stabilized after the mounting.

Means 8. The weather strip mounting structure according to any one of means 1 to 7, wherein the weather strip is formed of at least one of a thermoplastic elastomer and a foam thereof.

According to the above means 8, since the weather strip is formed of at least one of the thermoplastic elastomer and the foam thereof, unlike the prior art in which the weather strip is made of a rubber material, the vulcanization is performed. No need for a sulfurizing step, and it is possible to suppress an increase in manufacturing steps and cost. Further, since the specific gravity is lighter than that of the rubber material, the weight can be further reduced and the recycling can be easily performed.

Means 9. 9. The attachment structure for a weather strip according to any one of means 1 to 8, wherein the base has an insertless structure.

According to the above means 9, since the base portion has the insertless structure, it is possible to surely reduce the weight as compared with the case where the insert portion is provided. In addition, the recyclability can be improved.

Means 10. Means 1 to 9 characterized in that the flanges have different thicknesses depending on the parts.
The weather strip mounting structure according to any one of 1.

Even when the thickness of the flange is different depending on the portion as in the above-mentioned means 10, the above-described respective operational effects are surely exhibited.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment will be described below with reference to the drawings.

As shown in FIG. 2, the weather strip 1 in the present embodiment is attached to the periphery of the body side door opening 4 corresponding to the side door 3 of the automobile 2. The weather strip 1 is formed by an extrusion molding method and has a sectional structure as shown in FIG.

First, the cross-sectional structure of the weather strip 1 will be described. The weather strip 1 includes a base portion 8 having a substantially flat plate shape along a flange 5 provided at the periphery of the door opening 4. The base portion 8 is made of a solid material of TPO which is an olefinic thermoplastic elastomer, and has a plurality of holding lip portions 9 on the inner wall surface of the vehicle. A hollow seal portion 10 made of foamed TPO is provided on the vehicle exterior wall surface of the base portion 8. When the door 3 is closed, the seal portion 10 is crushed and deformed, so that the door 3
A seal is provided between the body and the body of the automobile 2.

Further, a cover lip 11 extending from the front end side of the flange 5 to the inside of the vehicle is connected to the base portion 8, and the base portion 8 and the cover lip 11 as a whole have a cross section of approximately J.
It is shaped like a letter. Also, the cover lip 11 is also
It is made of a solid material of TPO, and its tip portion covers the end portion of the interior article 12 such as the ceiling or garnish.

In addition, an auxiliary portion 15 is provided in the vicinity of the connecting portion between the cover lip 11 and the base portion 8, that is, in the portion corresponding to the tip end side of the flange 5. The auxiliary unit 15 is
The support 16 and the grip lip 17 are provided. Also,
The auxiliary portion 15 and the base portion 8 form a recess 18 for accommodating the tip of the flange 5. The tip of the flange 5 is hooked in the recess 18 so that the weather strip 1 can be positioned with respect to the flange 5. The auxiliary portion 15 is made of a solid material of hard TPO, and has higher rigidity than the cover lip 11. As a result, the deformation of the connecting portion between the cover lip 11 and the base portion 8 is suppressed, and the problem that the cover lip 11 floats up from the interior product 12 and the appearance is deteriorated is suppressed. In particular, this deformation suppressing effect is high when the weather strip 1 is bent at the corner corresponding portion of the peripheral edge of the door opening 4.

Next, the overall structure of the weather strip 1 will be described. As shown in FIG. 4, the base 8 has a substantially constant distance L along the longitudinal direction of the weather strip 1.
A plurality of holes 20 are formed for each (for example, 100 mm pitch). A clip 21 as a holding member is installed in each hole 20. Clip 21 is PA6 (6
It is made of polyamide) and has a base portion 22 and a shaft portion 23 that projects substantially vertically from the base portion 22. A collar-shaped fin 24 extending in the outer peripheral direction of the shaft portion 23 is integrally formed on the shaft portion 23. Also, the fin 24
To the shaft portion 23 on the tip side (the opposite end side of the base portion 22) from the
A pair of locking portions 25 and 26 are integrally formed. Both locking portions 25, 26 are formed in a wing shape so as to project obliquely from the shaft portion 23 toward the fin 24 side. The clip 21 pushes the base portion 22 while elastically deforming the hole 20 of the base portion 8, and the base portion 22 and the fin 2
It is attached by sandwiching the base portion 8 with the base member 4.

The weather strip 1 is shown in FIG.
As shown in FIG. 5, the clip 21 is attached by being locked and fixed to the flange 5. More specifically, the flange 5 includes an inner panel 31 and an outer panel 32, and basically both of these panels 31, 3 are provided.
It is formed by joining the peripheral portions of the two.
However, in the present embodiment, the thickness of the flange 5 is different depending on each part. For example, in FIG.
As shown in, the inner panel 31 and the outer panel 32
Some parts are only joined to each other.
As shown in (b) and (c), there is also a portion where the flange 5 is formed by providing plate-like lean forces 33 and 34 between both panels 31 and 32 in order to enhance the strength. In other words, there are parts where only one lean force 33 is installed, while there are two lean forces 33,
There is also a part where 34 is installed.

On the other hand, in the present embodiment, the outer panel 32 is provided with a mounting hole 35 for mounting the clip 21. Further, in the inner panel 31 and the lean forces 33, 34 of the flange 5 excluding the outer panel 32, large-diameter holes 36, 37, 38 sufficiently larger than the mounting holes 35 are provided at positions corresponding to the mounting holes 35. Each is formed.

When the clip 21 is locked and fixed to the flange 5, the shaft portion 23 of the clip 21 is attached from the outer wall surface side of the outer panel 32 with the auxiliary portion 15 hooked on the tip of the flange 5. The hole 35 is inserted laterally. Then, both locking portions 25 and 26 are elastically deformed inward once, and when the shaft portion 23 is inserted into the mounting hole 35, the locking portions 25 and 26 are restored by their elasticity and spread. To be At this time, the large diameter holes 36, 37, 38 are formed in the inner panel 31 and the lean forces 33, 34.
As a result, the restoration of the locking portions 25 and 26 does not interfere. In addition, the expanded locking portion 25,
The outer panel 32 is sandwiched by the tips of the fins 26 and the fins 24, whereby the clip 21 is locked and fixed to the flange 5. Then, the clip 21 is locked and fixed in each mounting hole 35, so that the weather strip 1 is mounted along the flange 5.

As described above in detail, in the present embodiment,
The weather strip 1 is attached by engaging the clip 21 with the attachment hole 35. Therefore, the weather strip 1 can be reliably fixed to the flange 5, and the situation that the weather strip 1 falls off the flange 5 can be prevented.

Particularly in this embodiment, the large diameter holes 36, 3
Since only one outer panel 32 is attached to the clip 21 by forming the clips 7 and 38, the flange 5 is different from the prior art in which the trim portion having a substantially U-shaped cross section is fitted into the flange. Regardless of the thickness of the clip, the clip 21 having the same size can always be used, and the clip 21 can be always assembled with the same insertion force. As a result, workability can be improved in mounting.

Moreover, since the mounting hole 35 is formed not on the inner panel 33 but on the outer panel 32 with which the base portion 8 abuts, the distance between the tips of the locking portions 25 and 26 of the clip 21 and the fins 24 is always substantially equal to that of the outer panel 32. It does not change due to the thickness. Therefore, the length of the shaft portion 23 of the clip 21 may be always constant at any part, and the common clip 21 can be used at any part. Therefore, it is possible to suppress the troublesomeness and the cost increase due to the adoption of the clips having different lengths of the shaft portion 23.

Further, since the weather strip 1 is securely attached to the predetermined position of the flange 5 by the clip 21, the trouble that the weather strip 1 is moved from the predetermined position in the width direction or the longitudinal direction of the flange 5 is prevented.

Further, in the present embodiment, since the conventional insert is not provided in the base portion 8, the cost can be reduced. Further, since the base portion 8 has a flat plate shape corresponding only to the flange 5 on the outer side of the vehicle, the weight can be remarkably reduced as compared with the conventional case in combination with the insertless structure. Moreover, since TPO having a specific gravity lower than that of the conventional rubber material is used as the material, it is possible to further reduce the weight.

In addition, since all the members except the clip 21 are made of the olefinic material, the material can be manufactured inexpensively without the need for vulcanization as in the conventional manufacturing process, and can be recycled. It can be done easily. Further, since the clip 21 can be easily removed from the weather strip 1, the recyclability can be further improved.

It should be noted that the present invention is not limited to the contents described in the above embodiment, but may be carried out as follows, for example.

(A) In the above embodiment, the weather strip 1 provided at the periphery of the body side door opening 4 corresponding to the (side front) door 3 is embodied, but a rear door, a back door, a luggage door (trunk). Lid), roof door (sliding roof panel)
It is also possible to apply to other weather strips provided around the opening edge of the door.

(B) Clip 2 on weather strip 1
1 does not necessarily have to be provided at regular intervals. For example, the interval between the clips 21 may be set narrow at the portion where the peripheral edge of the door opening 4 draws a curve, and the interval between the clips 21 may be set wide when the peripheral edge draws a substantially straight line.

(C) Weather strip 1 on the flange 5
In mounting, in addition to locking and fixing with clips 21, double-sided tape or the like may be used as a supplement. For example, when the peripheral edge of the door opening 4 draws a curved line, it is fixed with a clip 21, and when the peripheral edge draws a substantially straight line, a double-sided tape is provided at a position where the outer panel 32 of the base 8 abuts. May be adhered.

(D) In the above embodiment, the clip 21
PA6 is used as the material for the
Other resin materials such as PE (thermoplastic elastomer) and PP (polypropylene) may be adopted. Furthermore, TP
If O is adopted, the weather strip 1 can be recycled together with the clip 21 without removing the clip 21, and the recyclability can be further improved. Further, the material of the weather strip 1 is not limited to TPO, and a rubber material such as EPDM may be used as in the conventional case.

(E) When the clip 21 and the weather strip 1 are made of materials that can be welded to each other, the base portion 22 of the clip 21 is welded to the base portion 8 of the weather strip 1 so that 21 may be integrated.

(F) The shape of the clip 21 is not necessarily limited to the above-mentioned embodiment, and the number of the engaging portions 25 and 26 may be increased to three or more, for example.
The fins 24 may be omitted. Also, clip 2
Instead of 1, a blind rivet or the like may be adopted.

(G) In the above embodiment, the base 8 is provided with the holding lip portion 9, but the holding lip portion 9 may be omitted.

(H) Instead of the large diameter holes 36, 37, 38,
The cutout portion may be formed.

[Brief description of drawings]

1 (a), (b), (c) are cross-sectional views showing a weatherstrip mounting structure which is different in each portion.

FIG. 2 is a perspective view showing an automobile.

FIG. 3 is a cross-sectional view showing a weather strip according to one embodiment.

FIG. 4 is a perspective view showing a relationship between a weather strip and a clip.

FIG. 5 is a cross-sectional view showing a conventional weatherstrip mounting structure.

[Explanation of symbols]

1 ... Weather strip, 2 ... Car, 3 ... Door, 4 ...
Door opening, 5 ... Flange, 8 ... Base part, 10 ... Seal part,
11 ... Cover lip, 16 ... Support part, 18 ... Recessed part, 21
... Clips as holding members, 35 ... Mounting holes, 36, 3
7, 38 ... Large diameter holes.

Claims (8)

[Claims] 1. A base portion abutting along a flange of a vehicle door opening periphery, and a hollow or lip-shaped seal portion provided so as to project from the base portion and pressing the door periphery when the door is closed. A structure for attaching a weather strip, wherein the holding member is provided on the base portion, and the holding member is fitted into an attachment hole formed in the flange, whereby the weather strip is fixed to the flange. Weather strip mounting structure. 2. The flange is configured by stacking two or more panels, the mounting hole is formed in a specific panel of the panels, and the panels other than the specific panel are provided with the The weather strip mounting structure according to claim 1, wherein a hole having a larger diameter than that of the mounting hole or a notch having a larger width is formed in a portion corresponding to the mounting hole. 3. The weather strip mounting structure according to claim 2, wherein the specific panel in which the mounting hole is formed is a panel that abuts on a base portion. 4. The weather strip attachment structure according to claim 1, wherein a plurality of the holding members are provided along a longitudinal direction of the weather strip. 5. The weather strip mounting structure according to claim 1, wherein the base has a substantially flat plate shape. 6. A cover lip extending from the front end side of the flange in a direction opposite to the seal portion is connected to the base portion, and deformation of the connection portion is suppressed in the vicinity of a connection portion between the base portion and the cover lip. The weather strip mounting structure according to claim 5, further comprising: 7. The weather strip mounting structure according to claim 1, wherein the weather strip includes a recess capable of accommodating a tip end of the flange. 8. The weather strip mounting structure according to claim 1, wherein the weather strip is formed of at least one of a thermoplastic elastomer and a foam thereof.