JP2002264662A - Door weather strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sealability between a door weather strip and a door panel installed with the door weather strip. SOLUTION: This door weather strip comprises a cross-sectionally nearly rectangular installation base part 4 installed to a door periphery, and a hollow seal part 6 of a hollow shape projecting above the installation base part 4. The hollow seal part 6 is formed such that an angle θ on the vehicle inside made by a line connecting a point P and a point Q of the hollow seal part 6 to a line T along a panel face of a vehicle panel is less than 90 deg. over the whole periphery of the door periphery and that a point R is positioned on the vehicle outside to a line connecting the point Q and a point S of the hollow seal part 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door weatherstrip which is attached to the entire periphery of an openable and closable vehicle door.

[0002]

2. Description of the Related Art A door weatherstrip that seals between an outer peripheral edge of a door and a vehicle body panel when the door is closed has been known around the entire outer peripheral edge of an automobile door. ing.

As such a door weather strip 32, as shown in FIG. 7, for example, a mounting base 36 fixed to an outer peripheral edge of a door, and a hollow bulge projecting obliquely from the mounting base 36 are formed. And a portion 38.

The internal space of the bulging portion 38 is defined by a partition wall 40 as two hollow spaces.
Is a hollow seal lip 42 that comes into contact with the vehicle body panel when the door is closed. A lip 44 is formed on the base end side of the bulging portion 38 so as to abut on the door panel on the outer peripheral edge of the door on the vehicle outer side of the mounting base 36 and seal between the door weather strip 32 and the outer peripheral edge of the door. By bringing the lip 44 into contact with the door panel, the door weather strip 32 and the door panel 34 are
To prevent rainwater from flowing into the gap. (For example, Japanese Patent Application Laid-Open No. 63-74720, Japanese Utility Model Publication No. 6-453)
No.88)

[0005]

By the way, considering the shape of the bending deformation of the hollow seal portion 42 when the door is closed, the door weather strip 32 for the vehicle body panel is considered.
Is different depending on the position at which the door weatherstrip 32 is attached to the door, and the shape of the bending deformation of the hollow seal portion 42 may differ depending on the position at which the door weatherstrip 32 is attached to the door.

For example, in the case of a door that opens behind the front hinge, at the front side of the door on the hinge side, as shown in FIG. 8, the door weather strip 32 is moved along the direction indicated by the arrow in FIG. , The hollow seal lip 42 falls down toward the vehicle interior. As a result, the lip 44 is raised as a whole in the counterclockwise direction in FIG. Therefore, the door panel 34
However, the surface pressure of the lip 44 may not be easily transmitted, and the sealing property between the lip 44 and the door panel 34 may be significantly reduced. In some cases, a gap may be generated between the lip 44 and the door panel 34. There is a possibility that it will be.

[0007]

SUMMARY OF THE INVENTION In view of the above, the present invention provides a mounting base having a substantially rectangular cross section which is mounted on an outer peripheral edge of a door, and a hollow sealing portion having a hollow shape protruding upward from the mounting base. A door weather strip that seals between the door outer peripheral edge and the vehicle body panel by bending and deforming the hollow seal portion to contact the vehicle body panel when the door is closed. The hollow seal portion includes a vehicle inner wall having a base end connected to the mounting base, a vehicle outer upper wall extending from a tip of the vehicle inner wall toward the mounting base, the vehicle outer upper wall, and the mounting base. A door weather strip having a vehicle exterior lower wall to be connected, and a lip protruding toward the vehicle exterior from a connection portion between the vehicle exterior upper wall and the vehicle exterior lower wall; On the cross section of the strip, the angle between the straight line connecting the front end and the base end of the inner wall of the vehicle and the contact surface that contacts the hollow seal portion of the vehicle body panel when the door is closed is formed. θ is less than 90 ° over the entire periphery of the door outer peripheral edge, and connects the connecting portion between the mounting base and the lower outer wall and the tip of the inner wall on the cross section of the door weather strip. It is characterized in that the connection portion between the upper outer wall and the lower outer wall is positioned relatively outside the straight line with respect to the straight line. The direction in which the door weatherstrip enters the vehicle body panel when the door is closed differs depending on the mounting position on the outer peripheral edge of the door.However, in the door weatherstrip having such a configuration, the body panel is hollow when the door is closed. When abutting on the seal portion, the inner side wall of the vehicle is securely lowered toward the outer side of the vehicle with the connecting portion between the mounting base and the inner side wall as a fulcrum over the entire length of the door weather strip mounted on the outer peripheral edge of the door. Then, when the inner side wall of the vehicle falls down toward the outer side of the vehicle, the lip is securely pressed against the door panel over the entire length of the door weather strip attached to the outer peripheral edge of the door, and is brought into close contact therewith.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

A front door 1a and a rear door 1b of a motor vehicle shown in FIG.

A door weather strip 2 for sealing between the outer peripheral edge of the door 1 and the vehicle body panel when the door 1 is closed is attached to the outer peripheral edge of the door 1.

FIG. 2 shows a sectional view of the door weather strip 2 according to the present invention.

The door weather strip 2 has a mounting base 4 and a hollow seal portion 6, and is formed by extruding an elastic material such as rubber or resin material over substantially the entire length in the longitudinal direction of the door weather strip 2. They have the same cross-sectional shape.

The mounting base 4 has a substantially rectangular cross section, has a hollow space 8 formed therein, and is mounted on a door panel 24 to be described later on the outer peripheral edge of the door 1. Protrusions 10a and 10b are formed on the outer side surface and the inner side surface of the mounting base 4, respectively.

The hollow seal portion 6 comes into contact with the vehicle body panel 12 when the door 1 is closed.
Project upward from the upper end surface of the mounting base 4, that is, upward in FIG.

The hollow seal portion 6 has a vehicle inner side wall 14 having a base end connected to the mounting base 4, a vehicle outer side than the vehicle inner side wall 14,
That is, it is located on the right side in FIG. 1 and is located on the mounting base 4 side, that is, the outer side upper wall 16 extending downward from the tip of the inner side wall 14 in FIG. An outer lower wall 18 connecting the wall 16 and the mounting base 4, and a lip 20 protruding outward from the connection between the upper outer wall 16 and the lower outer wall 18.
And, it consists of.

Then, the upper end face of the mounting base 4, the inner side wall 1 of the vehicle.
4. A hollow space 22 inside the hollow seal portion 6 is defined by the vehicle outer upper wall 16 and the vehicle outer lower wall 18.

The lip 20 is positioned such that the distal end of the lip 20 is located closer to the mounting base 4 than the proximal end of the lip 20 located at the connection between the upper outer wall 16 and the lower outer wall 18. It is formed so as to project obliquely outward and have a length at least in contact with a door panel 24 (described later) on the vehicle outer side of the mounting base 4 over the entire periphery of the outer peripheral edge of the door 1.

In this door weather strip 2,
A point P is a cross-sectional center position of a connecting portion between the mounting base portion 4 and the vehicle inner side wall 14, and a point Q is a cross-sectional center position of a distal end portion of the hollow seal portion 6, that is, a connecting portion between the vehicle inner side wall 14 and the upper outer wall 16. Assuming that the cross-sectional center position of the connection portion between the outer upper wall 16 and the vehicle outer lower wall and 18 is point R, and the cross-sectional center position of the connection portion between the vehicle outer lower wall 18 and the mounting base 4 is point S, the hollow seal portion 6 When the hollow seal portion 6 comes into contact with the vehicle body panel 12, the hollow seal portion 6 bends and deforms while setting the points P, Q, R, and S as break points.

Then, a straight line PQ connecting the points P and Q,
When the door is closed, the relative angle θ between the straight line T along the panel surface 12a, which is the portion that comes into contact with the hollow seal portion 6 of the vehicle body panel 12, and the inner side of the vehicle, is defined over the entire outer periphery of the door. Therefore, the hollow seal portion 6 is formed so as to be less than 90 °.

Further, the hollow seal portion 6 is formed such that the point R is located relatively outside the vehicle with respect to the straight line QS connecting the points Q and S.

In the door weather strip 2 attached to the door 1, the direction of entry into the vehicle body panel 12 when the door 1 is closed differs depending on the mounting position of the door weather strip 2 in the circumferential direction of the outer peripheral edge of the door 1. It will be.

FIGS. 3 and 4 are sectional views of the front sides 23, 23 of the front door 1a and the rear door 1b substantially along the rotation axis of a door hinge (not shown), that is, the position along the line BB in FIG. 5 and 6 are cross-sectional views of the upper sides 25, 25 of the front door 1a and the rear door 1b along the vehicle body roof, that is, positions along the line AA in FIG.

The arrows m and n at both ends shown in FIGS. 3 to 6 indicate the direction in which the door weather strip 2 enters the vehicle body panel 12. Also, front door 1
a and the front base 23 of the rear door 1b, the mounting base 4 is connected to the door panel 24 by a clip (not shown) or the like.
At the upper sides 25, 25 of the front door 1a and the rear door 1b, the mounting base 4 is fixed to the door panel 24 by fitting the projections 10a, 10b into the channel portions 26 on the outer peripheral edge of the door panel 24. .

In the front side portion 23, the angle inside the vehicle formed by a straight line PQ connecting the points P and Q and a straight line T along the panel surface 12a of the vehicle body panel 12 when the door 1 is closed. is less than 90 °, as shown in FIG. 4, when the vehicle body panel 12 abuts against the hollow seal portion 6 when the door 1 is closed, the vehicle body panel 12
4, the vehicle inner side wall 14 falls toward the vehicle outside with the point P as a fulcrum. That is, the point Q is displaced to the outside of the vehicle by bending and deforming the hollow seal portion 6.

Since the R point is located relatively outside the vehicle with respect to the straight line QS connecting the Q point and the S point, the outside upper wall 16 and the lower outside wall 18 have the R point outside the vehicle. Deforms to fall down diagonally. Therefore, the inner side wall 14
Of the lip 20 toward the outside of the vehicle, and at the same time, the lip 20 can be securely brought into close contact with the door panel 24 on the outside of the vehicle from the mounting base 4.

On the other hand, also in the upper side portion 25, a straight line PQ connecting the points P and Q and a straight line T along the panel surface 12a of the vehicle body panel 12 when the door 1 is closed are formed. Since the angle θ is less than 90 °, when the door 1 is closed, as shown in FIG.
Abuts against the hollow seal portion 6, the vehicle body panel 12 abuts on the vehicle interior side wall 14, and the vehicle interior side wall 14 falls toward the vehicle exterior side with the point P as a fulcrum. That is, the hollow seal portion 6
The point Q is displaced to the outside of the vehicle by bending and deforming.

Since the R point is located relatively outside the vehicle with respect to the straight line QS connecting the Q point and the S point, similarly to the front side portion 23, the vehicle exterior upper wall 16 and the vehicle exterior lower portion Wall 18
Is deformed such that the point R falls obliquely downward on the vehicle outside.
Accordingly, the lip 20 can be reliably brought into close contact with the door panel 24 outside the mounting base 4 outside the vehicle while promoting the fall of the inside wall 14 toward the outside of the vehicle.

As described above, the door weather strip 2
When the door 1 is closed, the inner side wall 14 of the hollow seal portion 6 extends over the entire periphery of the door 1 regardless of the direction of entry into the vehicle body panel 12 when the door 1 is closed. 1
2 so that the inner side wall 14 can fall down toward the outer side of the vehicle. In other words, since the hollow seal portion 6 can be inclined toward the outside of the vehicle, the fall of the inner side wall 14 toward the outside of the vehicle causes the lip 20 to be attached to the mounting base over the entire outer periphery of the door 1. 4 can be reliably brought into close contact with the door panel 24 outside the vehicle.

That is, since the vehicle inner side wall 14 does not fall down toward the vehicle interior with the point P as a fulcrum, the hollow seal portion 6 is deformed when the door 1 is closed.
The lip 20 does not separate from the door panel 24, and when the door 1 is closed, the door weather strip 2
It is possible to reliably prevent rainwater or the like from flowing from between the door 1 and the door panel 24 from entering the inside of the vehicle over the entire outer periphery of the door 1.

[0030]

According to the present invention, the lip provided at the junction between the upper outer wall and the lower outer wall extends over the entire length of the door weather strip attached to the outer peripheral edge of the door. Since the close contact is ensured, it is possible to reliably prevent rainwater or the like from entering the inside of the vehicle from the gap between the door weather strip and the door panel.

[Brief description of the drawings]

FIG. 1 is a side view of an automobile door.

FIG. 2 is a cross-sectional view of the door weather strip according to the present invention.

FIG. 3 is a cross-sectional view of the door weather strip according to the present invention, taken along a line BB in FIG. 1;

FIG. 4 is a sectional view of the door weather strip according to the present invention, showing a state of bending deformation of the door weather strip at a position along the line BB in FIG. 1;

FIG. 5 is a sectional view of the door weather strip according to the present invention, taken along a line AA in FIG. 1;

6 is a cross-sectional view of the door weather strip according to the present invention, showing a state of bending deformation of the door weather strip at a position along the line AA in FIG. 1;

FIG. 7 is a sectional view of a conventional door weather strip.

FIG. 8 is a cross-sectional view of a conventional door weather strip at the front side of the door, showing a state of bending deformation when the door is closed.

[Explanation of symbols]

 2: Door weather strip 4: Mounting base 6: Hollow seal part 14: Car inner side wall 16: Car outer upper wall 18: Car outer lower wall

Claims (1)

[Claims] 1. A mounting base having a substantially rectangular cross section attached to an outer peripheral edge of a door, and a hollow sealing portion having a hollow shape protruding upward from the mounting base, wherein the hollow is formed when the door is closed. A door weatherstrip for sealing between the outer peripheral edge of the door and the vehicle body panel by bending and deforming the seal portion to make contact with the vehicle body panel, wherein a base end of the hollow seal portion is connected to the mounting base. A vehicle interior upper wall, an exterior upper wall extending from a tip of the interior wall toward the mounting base, an exterior lower wall connecting the exterior upper wall and the mounting base, an exterior upper wall, A lip protruding outward from the connection portion with the vehicle exterior lower wall, and a tip of the vehicle interior side wall on a cross section of the door weather strip. The angle θ on the inside of the vehicle formed between the straight line connecting the end and the contact surface that contacts the hollow seal portion of the vehicle body panel when the door is closed is 90 ° over the entire circumference of the outer peripheral edge of the door. And, on a cross section of the door weather strip, a straight line connecting a connecting portion between the mounting base and the lower vehicle outer wall and a tip of the inner vehicle inner wall, the upper outer wall of the vehicle and the outer side of the vehicle. A door weather strip, wherein a connection portion with a lower wall is formed so as to be located relatively outside the vehicle.