JP2004082808A - Weatherstrip for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remarkably improve sealability in a weatherstrip for automobiles with sashless type doors. <P>SOLUTION: The weatherstrip is attached to a door opening edge of the automobile main body 3 of a four door hard top car. The roof side section 5 of the door opening edge is provided with a main body section 21 with a recession-shaped cross section to be attached to the retainer 7 of the automobile main body 3. The main body section 21 comprises a base section 22, a side wall 23 inside the automobile, and a side wall 24 outside the automobile, which extend from both sides of the base section 22, and a seal lip 25 inside the automobile and a seal lip 26 outside the automobile extend from the side walls 23 and 24 to provide excellent sealing ability. since a door glass G slightly moves upward or downward by a glass slightly moving up/down mechanism 31 when a front door is opened or closed, even if the upper edge of the glass G is contained in the main body 21, the door is not prevented from opening or closing. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a weather strip for an automobile, and more particularly to a weather strip attached to a peripheral edge of a door opening of a sashless door.
[0002]
[Prior art]
Conventionally, an automobile having a sashless type door is known. In such an automobile, a weather strip is attached to the periphery of the door opening. The roof side portion of the weather strip has a mounting base mounted on a retainer of the vehicle body and has a hollow seal portion integrally formed with the mounting base (for example, JP-A-2000-198359). ).
[0003]
When the door is closed and the door glass is raised, the upper edge portion of the door glass comes into contact with the hollow sealing portion to be sealed. More specifically, the hollow seal portion is crushed and deformed so that the upper edge portion of the door glass is wrapped. As a result, the inside and outside of the vehicle are sealed.
[0004]
[Problems to be solved by the invention]
However, in the cross-sectional shape as described above, since one seal portion is deformed so as to wrap around the upper edge portion of the door glass, a recess is easily formed between the edge of the door glass and the seal portion. For example, when a car is washed with a high-pressure water flow (high-pressure car wash), water acts on the recessed portion to further deform the seal portion, and may enter the inside of the vehicle.
[0005]
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an automobile weather strip having a sashless type door, which is capable of significantly improving sealing performance. To provide a weather strip.
[0006]
Means for Solving the Problems and Effects of the Invention
Hereinafter, each means for solving the above-mentioned objects and the like will be described. In addition, an operation and effect unique to each corresponding means is added as necessary.
[0007]
Means 1. A weather strip for an automobile having a sashless door, at least a door glass attached to a periphery of a door opening of an automobile body having a glass fine elevating mechanism capable of finely elevating and lowering when the sashless door is opened and closed,
A weather strip for an automobile, wherein at least a roof side portion has a substantially concave cross section, and an inner edge and an outer edge of an upper edge portion of the door glass can be independently sealed.
[0008]
Here, the term "glass fine elevating mechanism" means that when the door is opened, the door glass is once slightly lowered, and when the door is closed, the door is closed in the slightly lowered state and the door is closed for a while after the door is closed. From (or quickly) the door glass can be slightly raised to bring it into a completely closed state. Note that the slight lowering refers to a lowering that does not cause the door glass to be caught by the weather strip (hereinafter, the same applies to each means).
[0009]
According to the means 1, at least the roof side portion of the automobile weather strip attached to the periphery of the door opening of the automobile body has a substantially concave shape in cross section, and the inner edge and the outer edge of the upper edge portion of the door glass. Can be independently sealed. Therefore, unlike the related art in which the upper edge portion of the door glass is sealed with one hollow seal portion, the upper edge portion of the door glass is housed in the concave roof side portion, and the interior of the vehicle is closed. And the outside of the vehicle is sealed independently of each other, so that a hollow portion due to the contact of the door glass with the hollow seal portion as in the related art is not formed. That is, even if a V-shaped groove is formed in the seal portion on the outside of the vehicle and foreign matter such as water or dust tries to enter through the groove, entry of the foreign matter is regulated by the seal portion on the inside of the vehicle. Become. As a result, a drastic improvement in sealing performance is achieved. On the other hand, at least when the sashless door is opened and closed, the glass is slightly raised and lowered by the glass fine lifting mechanism of the vehicle body. Therefore, even when the upper edge of the door glass is housed in the concave roof side portion as described above, the door glass slightly descends when the door is opened, and the door glass does not hinder the opening of the door. . Further, since the door glass is slightly lowered when the door is closed, the door glass does not hinder the closing of the door.
[0010]
Means 2. A weather strip for an automobile having a sashless door, at least a door glass attached to a periphery of a door opening of an automobile body having a glass fine elevating mechanism capable of finely elevating and lowering when the sashless door is opened and closed,
At least in the roof side portion, a main body portion having a substantially concave cross section and a substantially front end portion of the main body portion extending toward the door glass, and an inner side and an outer side of an upper edge portion of the door glass are respectively independent. And a pair of sealing portions for sealing by sealing.
[0011]
According to the means 2, of the automobile weather strip attached to the periphery of the door opening of the automobile body, at least at the roof side portion, a pair of seal portions extending from substantially the front end of the body portion having a substantially concave cross section is used. The inside and outside of the upper edge portion of the door glass are independently sealed. Therefore, unlike the related art in which the upper edge portion of the door glass is sealed with one hollow seal portion, the upper edge portion of the door glass is housed in the main body having a substantially concave cross section. Therefore, the inside and outside of the vehicle are independently sealed, so that a recess is not formed as in the related art. Further, even if foreign matter enters through the seal portion on the outside of the vehicle, entry of the foreign matter is regulated at least by the seal portion on the inside of the vehicle. As a result, a drastic improvement in sealing performance is achieved. On the other hand, at least when the sashless door is opened and closed, the glass is slightly raised and lowered by the glass fine lifting mechanism of the vehicle body. Therefore, even when the upper edge of the door glass is housed in the concave roof side portion as described above, the door glass slightly descends when the door is opened, and the door glass does not hinder the opening of the door. . Further, since the door glass is slightly lowered when the door is closed, the door glass does not hinder the closing of the door.
[0012]
Means 3. 3. The weather strip for a vehicle according to claim 2, wherein at least one of the seal portions is formed in a lip shape.
[0013]
According to the means 3, since at least one of the seal portions is formed in a lip shape, the lip portion bends, so that more efficient sealing performance is secured. It should be noted that “one of the seal portions” or “both of the seal portions” may be used instead of “at least one of the seal portions”.
[0014]
Means 4. 4. The weatherstrip for an automobile according to the means 2 or 3, wherein at least one of the seal portions is formed in a hollow shape.
[0015]
According to the means 4, since at least one of the sealing portions is formed in a hollow shape, the hollow sealing portion is deformed, so that more efficient sealing is ensured. It should be noted that “one of the seal portions” or “both of the seal portions” may be used instead of “at least one of the seal portions”.
[0016]
Means 5. The weather strip for a vehicle according to any one of means 2 to 4, wherein at least one of the seal portions is formed in a projecting shape.
[0017]
According to the means 5, since at least one of the seal portions is formed in a projecting shape, the door glass hits the projecting portion, so that a stronger sealing property is secured. It should be noted that “one of the seal portions” or “both of the seal portions” may be used instead of “at least one of the seal portions”.
[0018]
Means 6. At least the roof side portion is formed by extrusion molding and is formed of a non-foamed material.
[0019]
As in the means 6, when the roof side portion is formed by extrusion molding, by using a non-foamed material, the production speed can be dramatically increased as compared with the case of using a foamed material. Also, when forming a coating layer on the seal portion in order to smoothly slide the door glass, the coating layer can be formed relatively easily together with the extrusion.
[0020]
Means 7. The weather strip for a vehicle according to any one of means 1 to 6, wherein the vehicle has four sashless doors at front, rear, left and right.
[0021]
In the case of a motor vehicle such as the means 7, a single weatherstrip can cover the front and rear door openings.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment will be described with reference to the drawings.
[0023]
As shown in FIGS. 1 and 2, the automobile 1 according to the present embodiment is a so-called four-door hardtop car having four doors 2 at front, rear, left and right, and a sashless type is adopted as the door 2. Have been. A weather strip 4 is attached to the periphery of the door opening (excluding the lower part) of the vehicle body 3. Most of the weatherstrip 4 is formed by an extruded portion, and a portion with a mesh pattern in FIG. 2 is formed by a molded portion.
[0024]
The portion of the weather strip 4 corresponding to the front door mainly has a roof side portion 5 attached to the roof side of the vehicle body 3 and a center pillar portion 6 attached to the center pillar. As shown in FIG. 5, the center pillar portion 6 has the same cross-sectional shape as before. That is, the center pillar portion 6 includes a base 11 attached to the retainer 7 of the vehicle body 3, a hollow seal portion 12 integrally formed with the base 11, and a vehicle interior lip extending from a boundary portion between the base portion 11 and the seal portion 12. And a unit 13. With such a configuration, the rear end edge of the door glass G (front door glass) is sealed so as to be wrapped in the hollow seal portion 12, and is additionally sealed by the vehicle interior lip portion 13. It has become.
[0025]
On the other hand, the roof side part 5 has a cross-sectional shape completely different from the conventional one. That is, as shown in FIGS. 3 and 4, the roof side portion 5 includes a main body portion 21 having a substantially concave cross section and attached to the retainer 7 of the vehicle main body 3. The main body 21 includes a base 22, an inner side wall 23 and an outer side wall 24 extending from both sides of the base 22. Then, a pair of seal portions, an inner seal lip 25 and an outer seal lip 26, extend inward and upward from the inner side wall portion 23 and the outer side wall portion 24, respectively. The upper edge of the door glass G is configured to be in contact with the lower surface of the base 22 when the door glass G is raised. Although the cross-sectional shape of the roof side portion 5 is different from that of the center pillar portion 6, the cross-sectional shape is gradually changed in a molding portion connecting the two.
[0026]
Here, when the door glass G is at the highest position, the front end of the door glass G cannot be opened and closed because the upper end of the door glass G is caught on the outer side wall 24 or the like. For this reason, in this embodiment, the glass fine elevating mechanism 31 is provided. Next, the glass fine elevating mechanism 31 will be described. An inboard opening sensor 32 and an outboard opening sensor 33 for detecting that the handle has been operated to open the front door are provided on the inner handle and the outer handle (not shown) of the front door, respectively. Is provided. The sensors 32 and 33 are electrically connected to the input side of the control device 34. The motor body 3 (for example, a front door) is provided with a motor 35 for raising and lowering the door glass G. The motor 35 is electrically connected to an output side of the control device 34.
[0027]
When the inside or outside handle is operated when the front door is closed and when the door glass G is raised, the opening sensor 32 or 33 detects that operation. The control device 34 that has received the detection signal controls the drive of the motor 35, and quickly lowers the door glass G by a predetermined amount. The lowering amount at this time is such that the upper edge of the door glass G is located slightly below the outer side wall portion 24 (between several millimeters and several tens of millimeters), as shown in FIG. Thus, the front door can be opened without the door glass G getting caught. Similarly, the front door can be closed without the door glass G getting caught. On the other hand, when the front door is closed, after a lapse of a predetermined time from the closing, the control device 34 controls the drive of the motor 35 to return the door glass G to the raised position.
[0028]
Next, the operation and effect of the present embodiment configured as described above will be described.
[0029]
In the roof strip 5 of the weather strip 4, a pair of sealing lips extending from substantially the front ends of the side walls 23 and 24 are arranged such that the door glass G enters the main body 21 having a substantially concave cross section. The inner and outer sides of the upper edge portion of the door glass G are independently sealed by 25 and 26, respectively. Therefore, unlike the related art in which the upper edge portion of the door glass is sealed by a single hollow seal portion, the inside and outside of the vehicle are independently sealed, and No depression is formed. For example, at the time of high-pressure car washing or the like, even if a V-shaped groove is formed between the vehicle exterior seal lip 26 and the door glass G, and even if water passes through therefrom, the door glass G and the weather strip 4 may be separated from each other. It has a labyrinth structure, and eventually the ingress of water into the vehicle interior is regulated by the vehicle interior seal lip 25. As a result, a drastic improvement in sealing performance is achieved.
[0030]
On the other hand, at least the door glass G is slightly moved up and down by the glass fine elevating mechanism 31 when the front door is opened and closed. For this reason, even when the upper edge of the door glass G is housed in the main body portion 21 having a substantially concave cross section as described above, the door glass G slightly descends when the door is opened and closed, and the door glass G is moved to the front door. There is no hindrance to opening and closing the door.
[0031]
Further, since the glass fine elevating mechanism 31 is employed, it is not necessary to consider the so-called leaning amount (design considering the displacement of the door glass G due to the reaction force of the seal portion) so much. Therefore, the cross-sectional size of the roof side portion 5 can be made relatively compact. As a result, it is possible to reduce the amount of raw materials used and, consequently, the cost.
[0032]
In the above example, the front door is mainly described, but it is needless to say that the same effect can be obtained for the rear door.
[0033]
Note that the present invention is not limited to the content described in the above embodiment, and may be implemented as follows, for example. Of course, other application examples and modifications not illustrated below are naturally possible.
[0034]
(A) In the above-described embodiment, a lip-shaped seal portion, that is, a vehicle interior seal lip 25 and a vehicle exterior seal lip 26 are adopted. On the other hand, a hollow or protruding member may be used. For example, in the example shown in FIG. 6, hollow seal portions 41 and 42 are employed instead of the seal lips 25 and 26. Further, in the example shown in FIG. 7, a protruding seal portion 51 is employed on the outside of the vehicle. With such a configuration, the same operation and effect as those of the above embodiment can be obtained. Of course, lip-shaped, hollow-shaped, and projected-shaped seal portions can be appropriately combined and adopted.
[0035]
(B) In the above embodiment, the present invention is embodied in a four-door hard-top type automobile 1, but may be applied to a two-door type automobile.
[0036]
(C) Although not particularly mentioned in the above embodiment, any material such as EPDM and TPO can be adopted as a material forming the weather strip 4. In particular, it is also possible to employ a foam material, a fine foam material, a non-foam material and a combination thereof. However, in view of productivity, it is preferable to use a non-foamed material. In this case, when forming a coating layer on the seal portion in order to smoothly slide the door glass G, the coating layer can be formed relatively easily together with the extrusion.
[0037]
(D) Although not specifically mentioned in the above embodiment, a design molding extending to the outside of the vehicle may be integrally formed on the outside side wall portion 24.
[Brief description of the drawings]
FIG. 1 is a side view schematically showing an automobile according to an embodiment.
FIG. 2 is a side view schematically showing a weather strip attached to an automobile body.
FIG. 3 is a schematic configuration diagram showing a cross section of a roof side portion and a glass fine elevating mechanism.
FIG. 4 is a cross-sectional view showing a roof side portion when the door glass slightly descends.
FIG. 5 is a sectional view showing a center pillar portion.
FIG. 6 is a sectional view showing a roof side portion according to another embodiment.
FIG. 7 is a sectional view showing a roof side portion according to another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Car, 2 ... Door, 3 ... Car body, 4 ... Weather strip, 5 ... Roof side part, 7 ... Retainer, 21 ... Body part, 22 ... Base part, 23 ... Car inner side wall part, 24 ... Car outer side wall Reference numeral 25, a vehicle interior seal lip constituting a seal portion, 26, a vehicle exterior seal lip constituting a seal portion, 31 glass fine elevating mechanism, 34 control device, 35 motor, 41, 42, 51 seal portion .

Claims (6)

A weather strip for an automobile having a sashless door, at least a door glass attached to a periphery of a door opening of an automobile body having a glass fine elevating mechanism capable of finely elevating and lowering when the sashless door is opened and closed,
A weather strip for an automobile, wherein at least a roof side portion has a substantially concave cross section, and an inner edge and an outer edge of an upper edge portion of the door glass can be independently sealed. A weather strip for an automobile having a sashless door, at least a door glass attached to a periphery of a door opening of an automobile body having a glass fine elevating mechanism capable of finely elevating and lowering when the sashless door is opened and closed,
At least in the roof side portion, a main body portion having a substantially concave cross section and a substantially front end portion of the main body portion extending toward the door glass, and an inner side and an outer side of an upper edge portion of the door glass are independent from each other. And a pair of sealing portions for sealing by sealing. The automobile weather strip according to claim 2, wherein at least one of the seal portions has a lip shape. The automobile weather strip according to claim 2, wherein at least one of the seal portions is formed in a hollow shape. The automotive weather strip according to any one of claims 2 to 4, wherein at least one of the seal portions is formed in a projecting shape. The automobile weatherstrip according to any one of claims 2 to 5, wherein at least the roof side portion is formed by extrusion molding and is made of a non-foamed material.

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