JP4128409B2 - Car rear door weatherstrip - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rear door weather strip that is attached to a front door side of a rear door of a center pillarless automobile and has improved sealing performance at a lower end portion.
[0002]
[Prior art]
This will be described with reference to FIGS. In a center pillar-less automobile having no center pillar, a wall member 21 including a vertical wall 15 and a horizontal wall 16 is provided at a lower end portion of a rear door weather strip 20 attached to the front door 2 side of the rear door 1. And the vertical wall 15 of this wall member 21 is elastically contacted with the opening seal 4 attached to the body panel 3, and the sealing property in the said part is ensured.
[0003]
[Problems to be solved by the invention]
However, since a space S is formed between the wall member 21 and the rear door panel 1a, there is a problem that road noise and wind noise while traveling through the space S easily enter the vehicle interior R.
[0004]
In order to solve this problem, a means for elastically contacting the hollow seal portion 13 of the rear door weather strip 20 to the rear door panel 1a can be considered. However, if it does so, since the separate member for exclusive use for that is required, cost will increase and it is not preferable from the point of productivity. Furthermore, if the rear door panel 1a has irregularities due to its formability, it is difficult to reliably make elastic contact with the entire area, resulting in a problem that a seal breakage occurs and sufficient sealing performance cannot be secured. appear.
[0005]
Further, in the conventional rear door weather strip 20, since a certain amount of gap is provided between the base portion 12 and the flange 1b of the rear door 1 to which the base portion 12 is attached in consideration of insertion workability, the seal is not cut. It has a problem that it occurs and the sealing performance at that portion is not sufficient.
[0006]
The present invention was devised in view of these problems, and an object of the present invention is to improve the sealing performance of the lower end portion of the rear door weather strip attached to the front door 2 side of the rear door 1 in the center pillarless automobile.
[0007]
[Means for Solving the Problems]
Description will be made with reference to FIGS. 1 and 5 to 9. The rear door weather strip 10 according to the invention of claim 1 is a weather strip that is attached to the center door of a center pillarless vehicle by fitting a base 12 having a U-shaped cross section to the flange 1b of the rear door 1 on the front door 2 side of the rear door 1. A rear door weather strip in which a wall member 14 comprising a vertical wall 15 and a horizontal wall 16 is integrally formed at the lower end of the main body 11 and elastically contacts the opening seal 4 attached to the body panel 3, A linear seal protrusion 17 is provided so as to protrude continuously from the bottom of the inner surface of the base 12 to the outer peripheral end of the vertical wall 15 in continuous contact with the flange 1b and the rear door panel 1a.
[0008]
According to a second aspect of the present invention, the seal projection 17 is integrally formed with the wall member 14 and the base 12 in the first aspect of the present invention.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a rear door weather strip 10 according to the present invention is shown in FIGS. 1 and 5 to 9. This elastomer or rubber rear door weather strip 10 does not have a center pillar, and is attached to the front door 2 side of the rear door 1 in an automobile having a front door 2 of a front hinge and a rear door 1 of a sliding type or a rear hinge. It is composed of a weather strip body 11 and a wall member 14. Reference numeral 2 a denotes a front door weather strip attached to the front door 2.
[0010]
The weather strip body 11 includes a base 12 having a U-shaped cross section and a hollow seal 13 embedded therein, and the base 12 is fitted to the flange 1 b of the rear door 1 and assembled to the rear door 1. The elastomer or rubber wall member 14 is integrally formed at the lower end portion of the weather strip body 11, and includes a vertical wall 15 and a horizontal wall 16.
[0011]
A linear and bead-shaped seal protrusion 17 is provided so as to protrude continuously from the bottom of the inner surface of the base 12 to the outer peripheral end of the vertical wall 15 in continuous contact with the flange 1b and the rear door panel 1a. The seal protrusion 17 is preferably formed integrally with the wall member 14 and the base 12.
[0012]
When this rear door weather strip 10 is attached to the rear door 1, as shown in FIGS. 8 and 9, the seal projection 17 is elastically contacted with the rear door panel 1a over its entire length, so that it is formed between the wall member 14 and the rear door panel 1a. The space S and the interior R of the vehicle are cut off to ensure sufficient sealing performance. Accordingly, it is possible to prevent road noise and wind noise from entering the vehicle interior R during traveling.
[0013]
Further, as shown in FIG. 7, since the seal projection 17 located on the inner surface of the base portion 12 is in elastic contact with the flange 1b, the sealing performance at the flange portion is also ensured, and road noise and wind noise are prevented from entering. be able to.
[0014]
【The invention's effect】
Since the rear door weather strip 10 according to the present invention projects from the bottom of the inner surface of the base portion 12 to the entire length of the outer peripheral end portion of the vertical wall 15, the linear seal projection 17 that continuously elastically contacts the rear door panel 1 a is provided. The seal projection 17 elastically contacts the rear door panel 1a and the flange 1b over the entire length. As a result, the space S formed between the wall member 14 and the rear door panel 1a and the interior R are shut off, so that road noise and wind noise during traveling can be prevented from entering the interior R. .
[Brief description of the drawings]
FIG. 1 is a side view showing an automobile to which a rear door weather strip is attached.
FIG. 2 is a rear door weather strip according to a conventional example, and is a perspective view showing a portion P in FIG. 1;
FIG. 3 is a cross-sectional view taken along line AA in FIG. 2 (showing a state attached to a rear door panel).
4 is a cross-sectional view taken along the line BB in FIG. 2 (showing a state attached to a rear door panel).
FIG. 5 is a perspective view showing an embodiment of the rear door weather strip according to the present invention and showing a P portion in FIG. 1;
6 is a view taken in the direction of arrow Q in FIG.
FIG. 7 is a cross-sectional view taken along the line CC in FIG. 5 (showing a state of being attached to a flange).
FIG. 8 is a cross-sectional view taken along line DD in FIG. 5 (showing a state attached to the rear door panel).
FIG. 9 is a cross-sectional view taken along line EE in FIG. 5 (showing a state attached to a rear door panel).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rear door 1a Rear door panel 1b Flange 2 Front door 2a Front door weather strip 3 Body panel 4 Opening seal 10 Rear door weather strip 11 Weather strip main body 12 Base 13 Hollow seal part 14 Wall member 15 Vertical wall 16 Horizontal wall 17 Seal protrusion 20 Rear door Weather strip 21 Wall member S Space R Car interior

Claims (2)

In a center pillarless automobile, a lower end of a weather strip body (11) attached to a rear door (1) on the front door (2) side by fitting a base (12) having a U-shaped cross section to the flange (1b) of the rear door A rear door of an automobile in which a wall member (14) composed of a vertical wall (15) and a horizontal wall (16) is integrally formed at the part, and the vertical wall is elastically contacted with an opening seal (4) attached to the body panel (3) A weather strip,
A rear door weather strip formed by projecting a linear seal projection (17) continuously elastically contacting the flange and the rear door panel (1a) from the bottom of the inner surface of the base to the entire length of the outer peripheral end of the vertical wall.   2. A rear door weather strip for a motor vehicle according to claim 1, wherein the sealing protrusion (17) is integrally formed with the wall member (14) and the base (12).

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