JP3104576B2 - Door weatherstrip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip for a door of a vehicle or the like, and more particularly to a shape of a hollow weather strip arranged at a corner where a vertical edge and a horizontal edge of a door are connected.

[0002]

2. Description of the Related Art In a conventional vehicle, Japanese Utility Model Publication No. 57-2
As shown in Japanese Patent No. 4572, an endless hollow weather strip is mounted around the rear door of a vehicle, and when the rear door is fully closed, the hollow weather strip seals between the vehicle body and the door. A solid block or a hollow block is disposed at a connecting corner between the edge and the horizontal edge.

On the other hand, when a weather strip having hollow projections having substantially the same cross-section is mounted endlessly over the entire outer periphery of a rear door of a vehicle without arranging the above-mentioned block connecting both ends of the hollow weather strip. When the rear door is closed on the vehicle body side by the door hinge attached to the center pillar, the surface of the hollow projection on which the weatherstrip mounted on the vertical edge of the rear door is pressed against the rear end face of the center pillar, and the horizontal of the rear door Since the surface of the hollow projection against which the weather strip attached to the direction edge is pressed against the roof side or the side sill side is the opposite side across the top line of the hollow projection,
As a result of the twisting of the hollow projections at the connection corners where they are substantially orthogonal to each other, wrinkles and the like are likely to occur at the top line portion of the weather strip at the contact portion with the vehicle body side corner, and the sealing performance by the weather strip may be deteriorated. was there.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a hollow weather strip disposed at a corner where a vertical edge and a horizontal edge of a door are connected to each other when the door is fully closed. The object of the present invention is to improve the sealing performance of the weather strip by suppressing kinking.

[0005]

For this reason, a weatherstrip for a door according to the present invention is attached to a first edge of the door extending vertically on a pivot side of the door, and is opened when the door is fully closed. A first hollow seal lip having a first curved outer surface facing the indoor side and projecting obliquely with respect to the frame and having a second curved outer surface facing the indoor side, and attached to a second edge of the door extending horizontally. A second hollow seal lip having a third curved outer surface projecting obliquely with respect to the outer frame and facing the indoor side and a fourth curved outer surface facing the indoor side when the door is fully closed; A third hollow seal lip portion having a fifth curved outer surface having a substantially fan-shaped outer surface having a cross section perpendicular to the longitudinal direction at a corner where the edge is connected to the second edge; 5 The first curve by twisting smoothly from the outer surface Twisted smoothly from the fifth bend the outer surface is configured to connect to the fourth curved outer surface as well as connect to the surface.

[0006]

In other words, when the door is closed, the first hollow seal lip portion, which is attached to the first edge of the door extending vertically on the pivotal side of the door and protrudes obliquely with respect to the outer frame, A first curved outer surface facing the outdoor side is pressed by the outer frame, and is attached to the second end edge of the door extending in the horizontal direction and is inclined from the outer frame and projects from the second hollow seal lip portion. At the corner where the fourth curved outer surface facing the indoor side is pressed by the outer frame and the first edge and the second edge are connected, the outer surface of the third hollow seal lip portion having a substantially fan-shaped cross section is used. A certain fifth curved outer surface is pressed against the corner of the outer frame, and at this time, the outer surface of the weather strip is smoothly twisted from the fifth curved outer surface and connected to the first curved outer surface and the fourth curved outer surface, respectively. The outer surface of the strip is almost perpendicular to the outer frame Since the surface portion can be pressed smoothly and continuously, the fifth curved outer surface portion at the corner where the first edge and the second edge are connected when the door is fully closed may be kinked. Therefore, the weatherstrip can be in close contact with the outer frame continuously over its longitudinal direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention shown in the drawings will be specifically described below. 1 to 3, a rear door 2 of a vehicle 1 is pivotally supported on a center pillar 4 side by a door hinge (not shown) having a vertical pivot shaft 3.
The weather strip 10 is continuously mounted from the front edge 5 extending in the vertical direction to the upper edge 6.

[0008] The weather strip 10 is attached to the front edge 5 of the rear door by the base 11, and the base 1
2 attached to the upper edge 6 of the rear door,
The first hollow seal lip portion 13 supported by the protruding portion projects obliquely with respect to the end surface 14 of the center pillar 4 when the rear door 2 is fully closed, and at this time, the first curved outer surface 15 facing the outside of the vehicle compartment and the inside of the vehicle interior And a hollow portion 17 having a closed cross section is formed inside the first curved outer surface 15 and the second curved outer surface 16.

The second hollow seal lip portion 18 supported by the base portion 12 projects obliquely with respect to the end face 20 of the side roof rail 19 when the rear door 2 is fully closed, and at this time, the third hollow lip portion 18 faces the outside of the vehicle compartment. A third curved outer surface 2 having a curved outer surface 21 and a fourth curved outer surface 22 facing the vehicle interior side;
A hollow portion 2 having a closed cross section inside the first and fourth curved outer surfaces 22;
3 are formed.

On the other hand, as shown in FIGS. 4 and 5, a third hollow sealing lip of the weather strip 10 is disposed at a corner where the front edge 5 and the upper edge 6 of the rear door 2 are connected. The portion 24 has a fifth curved outer surface 25 having a substantially fan-shaped cross section perpendicular to the longitudinal direction of the weather strip 10 and having an outer surface wider than the height of the first hollow seal lip portion 13 and the second hollow seal lip portion 18. And the outer surface of the weather strip 10 has a fifth curved outer surface 25.
And is connected to the first curved outer surface 15 of the first hollow seal lip portion 13 while being smoothly twisted from the fifth curved outer surface 25 and connected to the fourth curved outer surface 22.

As a result, while the top line a of the first hollow seal lip portion 13 moves toward the second hollow seal lip portion 18 through the third hollow seal lip portion 24, the top line a in FIG. A1 in FIG. 4 and FIG.
2 and a3 in FIG. 7 and U2 in FIG.
7, the top line b of the second hollow seal lip 18 moves toward the first hollow seal lip 13 via the third hollow seal lip 24.
In the section taken along the line U2-U2 in FIG. 4, b1 in FIG. 7 and U1-U in FIG.
In the section, b2 in FIG. 7 and in the section T2-T2 in FIG.
B3 in the section taken along the line T1-T1 in FIG. 4 is shifted to b4 in FIG.

Therefore, when the rear door 2 is fully closed while rotating in the direction of the arrow in FIGS. 2 and 3 around the pivot shaft 3, the end surface 14 of the center pillar 4 The first curved outer surface 15 of the first hollow seal lip 13 attached to the front edge 5 of the rear door
Is pressed, while the end surface 20 of the side roof rail 19 is pressed.
The second hollow seal lip 18 attached to the upper edge 6 of the rear door of the weather strip 10.
The fourth curved outer surface 22 is pressed, and the connection corner between the rear door front edge 5 and the rear door upper edge 6 of the weather strip 10 is connected to the connection portion between the center pillar end surface 14 and the side roof rail end surface 20. Is pressed, but the outer surface of the weatherstrip 10 is smoothly twisted and connected from the fifth curved outer surface 25 to the first curved outer surface 15 while being pressed. From the fifth curved outer surface 25 to the fourth curved outer surface 2
2, the first curved outer surface 15 and the fourth curved outer surface of the weatherstrip 10 are connected to the center pillar end surface 14 and the side roof rail end surface 20, which are the outer frames of the rear door 2, and their connection corners. Curved outer surface 22
And the fifth curved outer surface 25 are continuously pressed, and the center trajectory of the contact surface of the weather strip 10 against the vehicle body is represented by a continuous c-line.

Further, the fifth curved outer surface 25 is formed to be wider than the first hollow seal lip portion 13 and the second hollow seal lip portion 22 as an outer surface having a substantially fan-shaped cross section, and has a center pillar end surface 14 and a side roof rail end surface. Since relatively large flexibility is provided to the connecting corners of the weather strip 20, the weatherstrip 10 can make continuous surface contact with a substantially perpendicular end face on the vehicle body side with an appropriate pressing force. Since good sealing properties can be obtained by the close contact, it is possible to reliably prevent rainwater, car wash water and the like from entering the vehicle interior.

The above embodiment is directed to a weather strip for a rear door facing the connecting corner between the end face of the center pillar of the vehicle and the end face of the side roof rail. The center pillar when the rear door of the vehicle is pivotally supported by the center pillar. A portion where the crossing angle between the outer frame end surfaces is relatively narrow, such as the connection corner between the end surface and the side sill end surface, or the connection corner between the rear pillar end surface and the side roof rail end surface when the door is pivotally supported by the rear pillar. Needless to say, if a weather strip having the same shape as the above is used as the weather strip facing the above, the same operation and effect as in the above embodiment can be obtained.

[0015]

The weatherstrip for a door according to the present invention is characterized in that when the door to which the weatherstrip is attached is closed, the third hollow seal lip portion has a substantially fan-shaped outer surface in cross section from the fifth curved outer surface. Are smoothly twisted and connected to the first curved outer surface and the fourth curved outer surface, respectively, and are smoothly and continuously pressed against the vertical and horizontal outer frames and their connection portions, respectively,
Since it is possible to smoothly adhere to the outer frame without being interrupted in the longitudinal direction of the weather strip, it is possible to ensure good sealing characteristics even at the corners of the door and easily prevent rainwater from entering.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line II-II of FIG.

FIG. 3 is an enlarged cross-sectional view taken along the line III-III of FIG. 1;

FIG. 4 is an outline drawing of a main part of the embodiment.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is an explanatory diagram of an outline change of a main part of the embodiment.

FIG. 7 is an explanatory diagram of an outline change of a main part of the embodiment.

FIG. 8 is a view taken in the direction of arrow VIII in FIG. 4;

[Explanation of symbols]

 Reference Signs List 2 rear door 5 front edge 6 upper edge 10 weather strip 13 first hollow seal lip portion 14 center pillar end surface 15 first curved outer surface 18 second hollow seal lip portion 20 side roof rail end surface 22 fourth curved outer surface 24 third hollow seal Lip portion 25 Fifth curved outer surface a Top line of first hollow seal lip portion b Top line of second hollow seal lip portion c Center trajectory per weather strip

Claims (7)

(57) [Claims] 1. A first curved outer surface which is attached to a first edge of the door extending vertically in a pivotal side of the door and which projects obliquely with respect to an outer frame when the door is fully closed and faces the outdoor side. A first hollow seal lip having a second curved outer surface facing the indoor side, and attached to a second edge of the door extending in a horizontal direction and projecting obliquely with respect to the outer frame when the door is fully closed. A second hollow seal lip having a third curved outer surface facing the outdoor side and a fourth curved outer surface facing the indoor side, and a longitudinal portion at a corner where the first edge and the second edge are connected; A third hollow seal lip having a fifth curved outer surface whose cross section perpendicular to the direction is a substantially fan-shaped outer surface, the outer surface being smoothly twisted from the fifth curved outer surface to be connected to the first curved outer surface; The fourth bend is smoothly twisted from the fifth bend outer surface. Door weatherstrip configured to connect to an exterior surface. 2. The first hollow seal lip according to claim 1, wherein the first hollow seal lip has a hollow portion formed inside the first curved outer surface and the second curved outer surface, and the second hollow seal lip has the second curved seal lip. A weatherstrip for a door, wherein a hollow portion is formed inside the third curved outer surface and the fourth curved outer surface. 3. The weatherstrip for a door according to claim 1, wherein the door is a side-opening door. 4. The first curved outer surface and the fourth curved outer surface according to claim 1, wherein the door is fully closed.
A weather strip for a door, wherein a curved outer surface and the fifth curved outer surface are respectively pressed by the outer frame. 5. The door according to claim 1, wherein a width of the fifth curved outer surface is wider than a height of the first hollow seal lip and / or the second hollow seal lip. For weather strip. 6. The weatherstrip for a door according to claim 1, wherein the door is a vehicle door, and the outer frame includes a pillar and a side roof rail or a side sill. 7. The weatherstrip for a door according to claim 6, wherein the door is a rear door, and the pillar is a center pillar.