JP2002293140A - Rear door weather strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rear door weather strip capable of preventing water gathered in a groove between a first and a second seal lips from splashing out of a front end edge of a front side upper corner part and dropping into a cabin at opening of a rear door. SOLUTION: A front side end edge of the first seal lip 26 is smoothly connected with a sub seal part 28 of a front part longitudinal side part in the front side upper corner part 22E of this rear door weather strip 22. An arc shaped guiding protrusion 33 is formed at a connecting part of the first seal lip 26 and the sub seal part 28. The water gathered in the groove 29 between the first seal lip 26 and the second seal lip 27 is guided to a lower part of an outer peripheral surface of the sub seal part 28 by the guiding protrusion 33 at opening of the rear door. Thus, the water is prevented from splashing out of the front end edge of the front side upper corner part and dropping into the cabin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear door weatherstrip, and more particularly to a method for preventing water remaining on a rear door weatherstrip from being dropped into a vehicle interior from a front upper corner when the rear door is opened. The present invention relates to a rear door weatherstrip that can be prevented.

[0002]

2. Description of the Related Art Generally, the periphery of a rear door of an automobile is
A rear door weatherstrip is provided for sealing between the rear door and the body. Although not shown, the rear door weather strip includes a base attached around the entire periphery of the rear door, and a hollow main seal portion formed integrally with the base over the entire periphery to abut and seal the peripheral edge of the rear door opening on the body side. Is formed. On the upper horizontal part of the rear door weather strip,
A lip-shaped first seal lip that projects upwardly from the base and whose tip abuts against and seals the peripheral edge of the rear door opening on the body side, and protrudes outward from the base or the first seal lip to the outside of the vehicle, and the tip is inside the rear door sash. A second seal lip that seals against the side surface is integrally formed to enhance the sealing function. Then, in a state where the rear door is closed, the main seal portion is elastically deformed and pressed by abutting on the peripheral edge of the rear door opening on the body side, and both seal lips are also connected to the peripheral edge of the rear door opening and the door sash of the rear door, respectively. To secure the seal between the body and the rear door.

As shown in FIG. 9, a rear door weatherstrip 22 includes a base 24 and a hollow main seal portion 2.
5 and first and second seal lips 26 and 27. The front end of the upper horizontal portion 22A and the upper end of the front vertical side 22C are connected by a corner 22E. Note that the main seal portion 2 is provided on the vertical side portion 22C.
In addition to 5, a hollow sub-seal portion 28 for sealing with the rear end edge of the front door is integrally formed.

[0004]

However, in the conventional rear door weather strip 22, when the rear door is opened after, for example, washing the car with the rear door closed,
In some cases, water remaining in the upper horizontal portion 22A of the rear door weather strip 22 jumps out into the air at the corner portion 22E, and then falls downward, which falls into the vehicle interior and contaminates the interior. That is, for example, when the automobile is washed, the two seal lips 26 and 27 are located between the body and the door sash, and seal the two, respectively. A small amount of water from the gap between the first and second seal lips 26 and 27
Invades 9 The water accumulated in the groove 29 moves to the front upper corner portion 22E through the groove 29 when the rear door is opened, moves straight from the front edge of the corner portion 22E, separates from the sub seal portion 28, and jumps out into the air. Dropped indoors. The reason for this will be described in more detail in the embodiment of the present invention. Here, since there is an upper horizontal portion, a large amount of water remains, and the upper horizontal portion of the rear door is curved to the inside of the vehicle. The explanation is that it is because it is.

It is an object of the present invention to provide a rear door weatherstrip that can prevent water accumulated in a groove between the first and second seal lips from dropping into a vehicle interior when the rear door is opened.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, an invention according to claim 1 is a rear door weatherstrip used for a rear door for opening and closing a rear door opening of an automobile, which is attached to a rear door sash. A base, a hollow main seal portion formed integrally with the base and abutting against and sealing with the peripheral edge of the rear door opening of the body; and a protruding upper portion from the base and a leading end contacting the peripheral edge of the rear door opening of the body. And a lip-shaped second seal lip that protrudes outward from the base or the first seal lip from the base portion or the first seal lip, and whose tip abuts against and seals the inner side surface of the rear door sash. The water moving to the front side along the groove formed by the first and second seal lips is applied to the front corner. Providing the guide portion for guiding to flow along the vertical side of the rear door weather strip which extends vertically Te is summarized as.

According to a second aspect of the present invention, in the first aspect, the guide portion is a guide ridge or a guide groove provided at the corner portion. According to a third aspect of the present invention, in the first aspect, a vertical side portion of the rear door weather strip is located forward of the base portion, the hollow main seal portion, and the main seal portion, A hollow sub-seal portion that abuts and seals against a rear end edge, wherein the guide portion is formed from the first seal lip to the hollow sub-seal portion.

According to a fourth aspect of the present invention, in the first aspect, the guide portion is a weir portion formed so as to stop a front end of the groove.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a rear door weatherstrip embodying the present invention will be described below with reference to FIGS.

FIG. 2 is a front view showing the vicinity of the left rear door of the automobile. A front door 12 is mounted on the front side of the body 11 so as to be openable and closable, and a rear door 13 is mounted on the rear side so as to be openable and closable.

The rear door 13 is mounted so as to be openable and closable in a horizontal direction as shown in a plan view of FIG. The rear door 13 is connected to a door opening peripheral portion 23 of the body 11 by a hinge mechanism (not shown) so as to be openable and closable.
4 and a door sash 15 formed above the door body 14. The rear door 13 is provided on the inner peripheral side of the door sash 15 and is mounted so as to be able to open and close a window opening in a vertical direction. A glass run 17 is provided to contact the inside and outside surfaces of the glass 16 to seal the inside and outside of the vehicle.

A rear door weatherstrip 22 having an annular shape over the entire periphery is mounted on an inner peripheral edge of the rear door 13 via a mounting bracket (retainer) 21 and a clip (not shown). This rear door weatherstrip 22
This seals between the peripheral edge 23 of the rear door opening on the body 11 side and the peripheral edge of the rear door 13.

The rear door weatherstrip 22 is connected to the upper horizontal portion 22A and the lower horizontal portion 22B as shown by broken lines in FIG. It comprises a portion 22C and a rear vertical side portion 22D located on the rear side and connecting the horizontal portions. Also, the upper horizontal portion 22A, lower horizontal portion 22B, both vertical side portions 22C of the rear door weather strip 22,
22D is extruded with a synthetic rubber such as ethylene-propylene-diene rubber. Then, an upper corner portion 22E connecting the upper horizontal portion 22A and the front vertical side portion 22C, a lower horizontal portion 22B and the front vertical side portion 22C.
The lower corner portion 22F connecting C is formed by molding.

FIG. 5 shows a cross sectional structure of the upper horizontal portion 22A of the rear door weather strip 22. As shown in FIG. The upper horizontal portion 22A is fixed to the outer peripheral upper surface 15a of the door sash 15 by welding or the like and is attached to the mounting bracket 21, and is integrally formed with the base 24, and comes into contact with the rear door opening peripheral portion 23 on the body 11 side. And a hollow main seal portion 25 for sealing. The upper horizontal portion 22A of the rear door weather strip 22 includes:
A lip-shaped first seal lip 26 protruding upward from the base 24 and abutting on the peripheral edge 23 of the rear door opening on the body 11 side to seal, and protruding outward from the base 24 or the first seal lip 26 toward the vehicle, The tip is door sash 1
5 is provided with a lip-shaped second seal lip 27 that abuts against and seals the inner side surface of the flange portion 15b.

As shown in FIG. 1, the front vertical side 22C of the rear door weather strip 22 is
And the hollow main seal portion 25 and a hollow sub-seal portion 28 located forward of the hollow main seal portion 25 and in contact with and sealing the rear end edge of the front door.
It consists of.

Although not shown, the cross-sectional structure of the lower horizontal portion 22B and the rear vertical portion 22D of the rear door weather strip 22 is not shown.
It consists only of.

As shown in FIG. 1, a groove 29 is formed by the first and second seal lips 26 and 27. The first seal lip 26 and the second seal lip 27
Only the upper horizontal portion 22A is formed, and the first seal lip 26 is connected in an arc shape to the upper end portion of the sub-seal portion 28 of the front vertical side portion 22C as shown in FIG. The front end of the second seal lip 27 is connected by a connecting portion 32 formed substantially at right angles to the outer peripheral surface of the upper end of the main seal portion 25 of the vertical side portion 22C.

The front door upper corner 22E has a rear door weatherstrip 22 with respect to the door sash 15.
A pin insertion hole 31 for stably attaching the door sash 15 is formed, and a pin (not shown) connected to the door sash 15 is inserted so that the corner portion 22E is
At a predetermined position.

In this embodiment, as shown in FIG. 1, the first seal lip 26 and the second seal lip 27
A groove 29 is formed between the two, and when the rear door is opened in a state where water remains in the groove 29 after the car is washed, water moving forward along the groove 29 is moved vertically. A guide ridge 33 as a guide portion for guiding to the outer peripheral surface of the sub-seal portion 28 of the front vertical side portion 22C extending from the seal lip 26 to the sub-seal portion 28 is formed in a series.

FIG. 3 is a vertical cross-sectional view of the rear door weather strip 22 passing through a corner portion 22E as indicated by line 1-1 in FIG. As is apparent from FIG. 3, the lower side of the rear door 13 is located outside the vertical line H passing through the corner 22E near the hinge center, which is the center of rotation of the door, in the vehicle width direction. FIG. 4 is a simplified plan view of the rear door 13 shown in FIG.
As is apparent from FIG. 4, even when the rear door 13 is opened, the position of the upper corner portion 22 </ b> E of the front side of the rear door weatherstrip 22 is located within the area of the vehicle interior floor F of the body 11. Therefore, the water remaining when the rear door 13 is opened jumps out of the front edge of the corner portion 22E into the space, and then falls into the area of the vehicle interior floor when falling.

Next, the rear door 13 constructed as described above is used.
The operation of the rear weather strip 22 will be described. In a state where the rear door 13 is opened as shown in FIG. 4, as shown in FIG. 5, the cross-sectional shape of the upper horizontal portion 22 </ b> A of the rear door weather strip 22 is the main seal portion 25, the first seal lip 26 and the second seal lip 26. The seal lip 27 is in a natural state without any elastic deformation. When the rear door 13 is closed from this state as shown in FIGS. 2 and 3, the main seal portion 25 of the rear door weatherstrip 22 is pressed by the rear door opening peripheral portion 23 of the body 11 and elastically deforms. The tip of the seal lip abuts the door opening peripheral portion 23, and the space between the door opening peripheral portion 23 of the body 11 and the rear door 13 is sealed.

In the upper horizontal portion 22A of the rear door weather strip 22, a hollow main seal portion 25 is pressed against a door opening peripheral portion 23 of the body 11 and a first seal lip 26 is formed as shown in FIG. The second sealing lip 2 is pressed against the outer edge of the door opening peripheral portion 23.
7 is pressed against the inner side surface of the flange portion 15 b of the door sash 15. Therefore, for example, when the car is washed, water can be suppressed or prevented from entering the vehicle interior from the gap between the flange portion 15b of the door sash 15 and the outer edge of the door opening peripheral portion 23 of the body 11.

Also, water may enter between the first seal lip 26 and the flange portion 15b during the car washing, and may accumulate in the groove 29. When the rear door 13 is opened in a state where the intruded water remains in the groove 29, the remaining water moves to the front along the groove 29. Then, this water is guided by the guide projection 33 shown in FIG. 1 and is guided to the outer peripheral surface of the sub-seal portion 28. For this reason, unlike the conventional case, the remaining water does not cross the sub-seal portion 28 from the groove 29 and jumps out into the space, and thereafter does not fall into the vehicle interior.

According to the rear door weatherstrip 22 of the above embodiment, the following features can be obtained. (1) In the above embodiment, the guide ridge 33 is provided at the connection portion between the first seal lip 26 and the hollow sub-seal portion 28 at the front vertical side, and remains in the groove 29 when the rear door is opened. Then, the water moved toward the front side is
8 was directed downward along the outer peripheral surface. Therefore, when the rear door 13 is opened, it is possible to prevent water from jumping into the space without passing through the outer peripheral surface at the upper end of the sub-seal portion 28 and thereafter falling into the vehicle interior.

(2) In the above embodiment, since the guide projections 33 are integrally formed in a series from the first seal lip 26 to the sub-seal portion 28, the corner portions 22E can be formed simultaneously and easily at the time of molding.

(3) In the above embodiment, the sub-seal portion 28
Since it is embodied in the rear door weather strip 22 having a
The water can be smoothly guided to the sub-seal portion 28.

The above embodiment may be modified as follows. In place of the guide ridge 33, a guide portion for guiding water below the outer peripheral surface of the sub-seal portion 28 may be a guide groove 34 as shown in FIG.

As shown in FIG. 8, the guide may be a weir 35 formed with a slight gap at the front end of the groove 29 formed by the seal lips 26 and 27. The present invention may be embodied in a rear door weatherstrip used for a rear door having a structure in which the rear door is opened and closed by moving back and forth substantially in parallel to the traveling direction of the vehicle.

In the front vertical portion, the sub-seal portion 28 may be omitted. In this case, the water in the groove 29 may be guided to the main seal portion 25 on the front vertical side portion facing downward at the upper front corner portion 22E.

[0030]

As described above in detail, according to the present invention, when the rear door is opened, water accumulated in the groove between the first and second seal lips falls into the vehicle interior from the front edge of the upper front corner. Can be prevented.

[Brief description of the drawings]

FIG. 1 is an essential part perspective view showing one embodiment of a rear door weatherstrip of the present invention.

FIG. 2 is a front view of the vicinity of a rear door.

FIG. 3 is an enlarged sectional view taken along line 1-1 of FIG. 2;

FIG. 4 is a plan view showing a state where a rear door is opened.

FIG. 5 is a cross-sectional view of the upper horizontal portion of the rear door weatherstrip with the rear door opened.

FIG. 6 is a cross-sectional view of the upper horizontal portion of the rear door weather strip with the rear door closed.

FIG. 7 is an essential part perspective view showing another example of the present invention.

FIG. 8 is an essential part perspective view showing another example of the present invention.

FIG. 9 is a partial perspective view of a conventional rear door weatherstrip.

[Explanation of symbols]

22 ... rear door weather strip, 26 ... first seal lip, 27 ... second seal lip, 28 ... sub-seal part, 29 ... groove, 32 ... connection part, 33 ... guide ridge as guide means, 34 ... guide means Guide grooves, 35 ... weirs as guide means.

Claims (4)

[Claims] 1. A rear door weatherstrip for use in a rear door for opening and closing a rear door opening of an automobile, comprising: a base attached to a rear door sash; A hollow main seal portion, a lip-shaped first seal lip protruding upward from the base portion and having a distal end abutting on the peripheral edge of the rear door opening of the body to seal, and a vehicle from the base portion or the first seal lip. A lip-shaped second seal lip that projects outward and has a tip that abuts against and seals the inside surface of the rear door sash, and moves forward along a groove formed by the first and second seal lips. Water flows along the vertical side of the rear door weatherstrip, which extends vertically at the front corner. Rear door weather strip, characterized in that a guide portion for guiding the so that. 2. The rear door weather strip according to claim 1, wherein the guide portion is a guide ridge or a guide groove provided at the corner portion. 3. The rear door weather strip according to claim 1, wherein a vertical side of the rear door weather strip is located forward of the base, the hollow main seal, and the main seal.
A rear door weather strip, comprising: a hollow sub-seal portion that abuts and seals on a rear end edge of the front door, wherein the guide portion is formed from the first seal lip to the hollow sub-seal portion. 4. The rear door weather strip according to claim 1, wherein the guide portion is a weir portion formed so as to stop a front end of the groove.