JP2000301951A - Door weatherstrip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent sealability and door-closability from being worsened even when used with the lapse of time. SOLUTION: This weatherstrip is provided with an attaching base part 1 attached to a peripheral edge part of a door panel 20, a hollow seal part 2 intergally formed in the base part 1 to contact elastically with an body open edge part 30, and a bridge 30 for dividing the hollow seal part 2 into two. A portion of the base part 1 attached to a rear side of the door panel 20 is attached in a position where the hollow seal part 2 deflected at the time of the elastic contact of the seal part 2 is not projected from the door panel 20, one end part of the bridge 3 is connected to the base part 1 and the other end is connected to the seal part 2 to divide the seal part 2 into an in-cabin side portion 2a and an out-cabin side portion 2b, a portion 5 of the seal part 2 connected with the other end of the bridge 3 is projected to a body side with a thick wall thickness, a recess 7 is formed in an out-cabin side of the projected thick wall part 5, and a side of the in-cabin side portion 2a of the seal part 2 is made to serve as a seal face around the thick wall part 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door weather strip which is attached to a door of an automobile and seals a gap between the door and a vehicle body.

[0002]

2. Description of the Related Art A door weatherstrip for sealing a gap between a door and an edge of a vehicle body opening is attached to a periphery of a door panel (door sash) of an automobile. As such a door weather strip, a seal member having a hollow seal portion and the hollow seal portion divided into two by a bridge is known (for example, Japanese Utility Model Application Laid-Open No. 56-21218).
No., Japanese Utility Model Publication No. 57-117217).

[0003]

However, according to the door weather strip disclosed in Japanese Utility Model Laid-Open Publication No. 56-21218 and Japanese Utility Model Laid-Open Publication No. 57-117217, the thickness of the hollow seal part divided into two parts by the bridge is limited. There is no particular limitation on the position where the hollow seal portion is substantially uniform and elastically contacts the edge portion of the opening of the vehicle body. Therefore, when the hollow seal portion is used over time, the direction of deformation of the divided hollow seal portion may vary. As a result, there is a problem that the sealing property or the door closing property deteriorates.

It is an object of the present invention to provide a door weatherstrip which does not deteriorate the sealing performance and the door closing performance even when used over time.

[0005]

In order to achieve the above object, a door weatherstrip according to the present invention comprises a mounting base (1) mounted on a peripheral portion of a door panel (20); Door weather strip (10) including a hollow seal portion (2) integrally formed with the mounting base (1) and elastically contacting the vehicle body opening edge (30), and a bridge (3) dividing the hollow seal portion (2). A door panel (2) opposite to the front side of the door panel (20) provided with the hinge.
0) The portion of the mounting base (1) mounted on the rear side is mounted at a position where the hollow seal portion (2) that is bent when the hollow seal portion (2) elastically contacts does not protrude outside from the door panel (20). The bridge (3) has one end attached to the mounting base (1).
The other end is connected to the hollow seal portion (2), and the hollow seal portion (2) is connected to the inside portion (2a) and the outside portion (2b).
The portion (5) of the hollow seal portion (2) to which the other end of the bridge (3) is joined is thick and protrudes toward the vehicle body, and the protruding thick portion (5) is on the vehicle exterior side. Has a recess (7)
In addition, a portion (2a) of the hollow seal portion (2) inside the vehicle from the thick portion (5) to the thick portion (5) is used as a sealing surface.

The door weatherstrip (10) according to the second aspect is characterized in that the central portion of the bridge (3) is formed in a substantially U-shaped shape.

Symbols in parentheses indicate corresponding elements or items described in the drawings and the embodiments of the invention described later.

According to the first aspect of the present invention, the mounting base is mounted at a position where the hollow seal portion bent at the time of elastic contact does not protrude outward from the rear end of the door panel. The deformed hollow seal portion is sandwiched between them, so that the appearance does not deteriorate and the sealing performance does not deteriorate. In addition, the sound insulation effect is increased by the bridge formed in the hollow seal portion. Further, since the elastic contact position of the hollow seal portion with respect to the opening edge of the vehicle body is limited around the thick portion, the deformation of the hollow seal portion is stable. In addition, the concave portion formed on the vehicle outside of the thick portion allows the portion of the hollow seal portion on the vehicle outside at the time of elastic contact to be forcibly deformed toward the vehicle outside. Adhesion by the sealing surface toward the part of the hollow seal portion inside the vehicle is further improved, and the sealing performance is improved. In addition, even when used over time, there is no variation in the deformation direction, and it is constant.

According to the second aspect of the present invention, in addition to the operation and effect of the first aspect of the present invention, the central portion of the bridge is formed in a substantially V-shape so that it can be elastically contacted. It is easily deformed, and the door closing property is improved.

[0010]

Embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the door weather strip 10 according to the embodiment of the present invention is attached to the periphery of a door panel 20, and
0 and the gap between the vehicle body opening edge 30 and the opening 30 are sealed. FIG. 2 is an enlarged sectional view taken along line AA of FIG.

More specifically, door weather strip 1
Reference numeral 0 denotes a mounting base 1, a hollow seal portion 2 integrally formed with the mounting base 1, and a bridge 3 that divides the hollow seal portion 2 into a vehicle interior portion 2a and a vehicle exterior portion 2b.
The mounting base 1 is mounted on a retainer 21 fixed to the peripheral edge of the door panel 20, and the hollow seal portion 2 comes into elastic contact with the vehicle body opening edge 30 when the door is closed. FIG. 3 shows a state in which the hollow seal portion 2 is in elastic contact with the vehicle body opening edge portion 30.

In particular, the portion of the mounting base 1 mounted on the rear side of the door panel opposite to the front side of the door panel provided with the hinge is formed by the hollow seal portion 2 bent at the time of elastic contact of the hollow seal portion 2 with the rear end of the door panel 20. (Position indicated by a straight line L shown in FIG. 3)
It is installed at a position that does not protrude from the outside. Therefore, the deformed hollow seal portion 20 is not pinched by the rear end of the door panel 20 when the door is closed. One end of the bridge 3 is integrally formed with the mounting base 1, and the other end of the bridge 3 is integrally formed with the hollow seal portion 2. The formation of the bridge 3 balances the sealing performance and the door closing performance and improves the shielding effect. Further, since the bridge 3 has a substantially U-shaped cross section curved at the center at the outside of the vehicle and is easily deformed at the time of elastic contact, the door closing property is better.

The portion 5 of the hollow seal portion 2 to which the other end of the bridge 3 is connected is made thicker than the other portions of the hollow seal portion 2, and is protruded toward the vehicle body.
A recess 7 is formed on the vehicle outside of the protruding thick portion 5. Then, the portion 2a side of the hollow seal portion 2 inside the vehicle from the thick portion 5 to the thick portion 5 is set as the seal surface.

As described above, since the elastic contact position of the hollow seal portion 2 with the vehicle body opening edge 30 is limited around the thick portion 5, the deformation of the hollow seal portion 2 is stabilized. Moreover,
Due to the concave portion 7 formed on the vehicle exterior of the thick portion 5, the vehicle exterior portion 2b of the hollow seal portion 2 at the time of elastic contact is forcibly deformed toward the vehicle exterior as shown in FIG. From the thick portion 5 to the portion 2 of the hollow seal portion 2 inside the vehicle.
Adhesion by the sealing surface toward the a side is further improved, and sealing performance is improved. In addition, even when used over time, there is no variation in the deformation direction, and it is constant.

[0015]

As described above, according to the door weather strip according to the first aspect, the mounting base is mounted at a position where the hollow seal portion bent at the time of elastic contact does not protrude outward from the rear end of the door panel. Therefore, the deformed hollow seal portion is sandwiched by the rear end of the door panel, so that the appearance does not deteriorate and the sealing performance does not deteriorate. In addition, the sound insulation effect is increased by the bridge formed in the hollow seal portion.
Further, since the elastic contact position of the hollow seal portion with respect to the opening edge of the vehicle body is limited around the thick portion, the deformation of the hollow seal portion is stable. Moreover, due to the concave portion formed on the vehicle outside of the thick portion, the portion of the hollow seal portion on the vehicle outside at the time of elastic contact is
Since it is forcibly deformed toward the outside of the vehicle, the tightness of the sealing surface from the thick portion to the side of the hollow seal portion on the inside of the vehicle is further improved, and the sealing performance is improved. In addition, even when used over time, the deformation direction is constant without variation.

According to the second aspect of the invention, in addition to the operation and effect of the first aspect, the central portion of the bridge is curved in a substantially V-shape, so that it can be elastically contacted. It is easily deformed, and the door closing property is improved.

[Brief description of the drawings]

FIG. 1 is an external side view of a vehicle body.

FIG. 2 is an enlarged cross-sectional view of the door weather strip according to the embodiment of the present invention, taken along line AA of FIG. 1;

FIG. 3 is a cross-sectional view showing a state in which the door weather strip shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Installation base part 2 Hollow seal part 2a Inside part of a vehicle 2b Outside part of a vehicle 3 Bridge 5 Connection part of other end of bridge (thick part) 7 Concave part 10 Door weather strip 20 Door panel (door sash) 21 Retainer 30 Body opening edge

Claims (2)

[Claims] 1. A door weatherer comprising: a mounting base mounted on a peripheral edge of a door panel; a hollow seal formed integrally with the mounting base and elastically contacting an opening edge of a vehicle body; and a bridge dividing the hollow seal. The mounting base portion, which is a strip, and is attached to the rear side of the door panel opposite to the front side of the door panel provided with the hinge, has a hollow seal portion which is bent when the hollow seal portion elastically contacts protrudes outward from the door panel. The bridge is connected at one end to the mounting base and the other end is connected to the hollow seal portion to divide the hollow seal portion into a vehicle interior portion and a vehicle exterior portion. The portion of the hollow seal portion to which the other end is connected is thick and protrudes toward the vehicle body, and a concave portion is formed on the vehicle outside of the protruding thick portion, and the thick portion is centered on the thick portion. Car from department A door weather strip, wherein a portion of an inner hollow seal portion is a sealing surface. 2. The door weatherstrip according to claim 1, wherein a center portion of the bridge is formed in a substantially U-shaped shape.