JPH11301282A - Automobile door seal structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively suppress the generation of air swishing sound with simple constitution. SOLUTION: A pair of clearance lips 58, 58 protruded along a face orthogonal to the longitudinal direction of a door weatherstrip and abutting the side face of the door weatherstrip is formed at a front end part 20 integrally molded at the body front end part of the door weatherstrip. A support wall 60 for connecting the clearance lips 58, 58 to each other along the longitudinal direction of the door weatherstrip is provided between the clearance lips 58, 58. Parting structure used for molding of the front end part 20 of the door weatherstrip provided with a pair of clearance lips 58, 58 and the support wall 60 is therefore simplified to improve workability and to reduce cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a seal structure around an automobile door.

[0002]

2. Description of the Related Art In an automobile door, a weather strip for maintaining airtightness inside and outside the vehicle is attached to both the door side and the vehicle body opening side. A conventional seal structure around the front door will be schematically described with reference to FIG. The body side weather strip 100 attached to the periphery of the door opening on the vehicle body side
When 02 is closed, it comes into contact with the front door 102,
The space between the front door 102 and the front door 102 is sealed.

[0003] From the front pillar 118 to the rear pillar 12
0, the drip weatherstrip 104 mounted along the upper edge of the door opening on the vehicle body side
When the door 02 is closed, it comes into contact with the upper edge of the front door 102 to seal the space between the front door 102 and the door. Further, a lower terminal portion 106 of the drip weather strip 104 in front of the vehicle body is extended inside the front fender 116.

[0004] A door weatherstrip 108 is mounted along the lower peripheral edge of the front door 102 from the front edge of the front door 102 to the rear edge of the front door 102 through the lower portion of the front door 102 when the front door 102 is closed. , Including the side sill 114 and the lower part of the door opening on the vehicle body side, and seals the gap between the door opening and the door.

In such a sealing structure around the front door 102, when the automobile travels at a high speed, the air flowing along the front fender 116 and the front pillar 118 is located in front of the door weather strip 108 in the vehicle body. By flowing between the front terminal part 110 and the lower terminal part 106 located in front of the drip weather strip 104 on the vehicle body, it flows into a space formed between the drip weather strip 104 and the body side weather strip 100. , Generating wind noise.

[0006] Therefore, the door weather strip 1
As shown in FIG. 16, a hollow seal portion 112 abutting on the lower terminal portion 106 of the drip weather strip 104 in front of the vehicle body is provided on the front terminal portion 110 formed by molding.
Are integrally molded, and by this hollow seal portion 112,
A front fender 116 and a front pillar 118 are closed in a space between the drip weather strip 104 and the body side weather strip 100 by closing a space between the door weather strip 108 and the drip weather strip 104 in the front terminal portion 110.
A configuration is known in which air flowing along the airflow is prevented from flowing in, thereby preventing the generation of wind noise (for example, see Japanese Patent Application Laid-Open No. 9-193660).

[0007]

However, since the hollow seal portion 112 formed integrally with the front end portion 110 of the door weather strip 108 has a hollow shape, the door closing performance deteriorates if a sufficient bending allowance is secured. . In addition, there is a problem that the mold splitting structure of the hollow seal portion 112 used for the molding is complicated, the workability is deteriorated, and the manufacturing cost is increased.

[0008]

According to the first aspect of the present invention, a drip weather strip is mounted along an upper edge of a door opening on a vehicle body side, and a lower terminal portion in front of the vehicle body extends inside a front fender. And a door weatherstrip that is mounted along the door periphery and is located near the lower terminal of the drip weatherstrip when the front terminal in front of the vehicle body to be molded is closed. In the door seal structure of an automobile having the same, a pair of clearance lips of the same shape projecting at a front end portion along a surface orthogonal to a longitudinal direction of the door weather strip and abutting against a side surface of the drip weather strip, The pair of clearance lips are connected to each other along the longitudinal direction of the door weather strip between the pair of clearance lips. It is characterized in that a support wall to be. The gap lip blocks a space formed between the front end portion of the door weather strip and the drip weather strip, and prevents generation of wind noise.

As a result, the mold splitting structure used for molding the front end portion of the door weatherstrip provided with the clearance lip and the support wall becomes relatively simple, thereby improving workability and reducing costs. It becomes possible. Further, even if the clearance of the gap lip is sufficiently set, it is possible to suppress a decrease in door closing performance.

According to a second aspect of the present invention, the pair of gap lips are connected to each other by two thin plate-like support walls that are substantially orthogonal to each other.

According to the third aspect of the present invention, the pair of clearance lips have a substantially rectangular cross section in a plane along the longitudinal direction of the door weather strip, and are formed with the concave portions facing each other. It is characterized by having. Thereby, the gap lip easily follows the deformation of the drip weather strip, and the space created between the drip weather strip and the door weather strip can be easily closed.

[0012]

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

A body side weather strip 14 is provided around the front door 10 and the rear door 12 of the automobile shown in FIG.
, A drip weather strip 16 and a door weather strip 18 are mounted.

In a region A surrounded by a solid line in FIG. 1, the front end portion 20 of the door weather strip 18 is in contact with the drip weather strip 16 as shown in FIG.

FIG. 2 is an enlarged perspective view of the area A shown in FIG. 1, and FIG. 3 is a perspective view of FIG. 2 viewed from the inside of the vehicle.

The above body side weather strip 14
Is made of rubber and is attached to the door opening on the vehicle body side over substantially the entire circumference. Here, FIG. 4 is a sectional view taken along line BB of FIG. As shown in FIG. 4, the body side weather strip 14 has a welt portion 26 fitted to a flange 24 inside a vehicle body panel 22 that forms an edge of a door opening on the vehicle body side, and bulges outwardly of the welt portion 26. When the door is closed, the gap between the door and the door opening of the vehicle body is sealed over substantially the entire circumference when the door is closed.

The drip weather strip 16 is made of rubber, and as shown in FIGS. 1 and 4, the front pillar 30 passes through the roof side panel 32 to the rear pillar 3.
4 is attached to a drip channel 36 provided at the upper edge of the door opening on the vehicle body side.

The drip weather strip 16 includes:
It comprises an extruded central portion 38 and a lower terminal portion 40 integrally molded with the central portion.

As shown in FIGS. 2 and 4, the central portion 38 has an inner peripheral side sealing lip 42 extending from the inner peripheral side of the door opening to the outside of the vehicle, and an outer peripheral portion bulging hollowly to the outer peripheral side of the door opening. And a side seal portion 44, and when the door is closed, the inner peripheral side seal lip 42 and the outer peripheral side seal portion 44 seal between the door and the door opening of the vehicle body. . A drip space 46 is formed between the inner peripheral side seal lip 42 and the outer peripheral side seal portion 44.

The lower terminal portion 4 on the front pillar 30 side
2 extends from the front door 10 to the front of the vehicle body and enters the inside of the front fender 48, as shown in FIG. 2, and drains rainwater or the like that has entered the drip space 46 from the inside of the front fender 48 to the outside of the vehicle. It has become. The lower end portion 40 has an inner peripheral side seal lip 42a continuous from the inner peripheral side seal lip 42.
Are formed so as to smoothly project toward the inner peripheral side of the door opening in accordance with the curved shape of the door.

The door weather strip 18 is made of rubber. In the front door 10, as shown in FIG. 1, the door rim is not provided with the drip weather strip 16, that is, the front edge of the front door 10 is opposed to the side sill 50. The front door 10 is attached to the lower peripheral edge of the front door 10 through the lower portion of the front door 10 to the rear edge of the front door 10. This door weather strip 1
As shown in FIGS. 2 and 4, a seal portion 5 having a hollow cross section that comes into contact with a door opening on the vehicle body side when the door is closed, as shown in FIGS.
2 and a mounting base 54 corresponding to the shape of the peripheral edge of the front door 10.
The main subject.

As shown in FIGS. 2, 3 and 4, a pair of clearance lips 5 which come into contact with the drip weather strip 16 are provided at one end of the extruded portion 56 at the front of the vehicle body.
The front end portion 20 having the support walls 60 connecting the pair of clearance lips 58, 58 and the pair of clearance lips 58, 58 is integrally formed with the extruded portion 56.

As shown in FIGS. 4, 5 and 6, the front terminal portion 20 is formed to have substantially the same cross-sectional shape as the extruded portion 56, and is attached to the front door 10 via a clip 62. Have been.

The pair of clearance lips 58, 58 have a thin plate shape, and are formed so as to protrude from the mounting base 54 at predetermined intervals along a plane orthogonal to the longitudinal direction of the door weather strip 18. , The mounting base 54
A vehicle interior end portion 66 rising substantially vertically from the vicinity of the seal portion 52 on the upper end surface 64 of the vehicle, a tip end portion 68 extending diagonally upward from the upper end of the vehicle interior end portion 66 toward the vehicle exterior side, An outer end 70 continuous downward from the outer end of the front end 68 and a rear end 7 continuous from the lower end of the outer end 70 toward the lower end surface of the mounting base.
And 2.

Also, as shown in FIG.
The outer end portion 70 and the rear end portion 72 of the gap lip 58 projecting from the front end 4 are in contact with the front door 10 without any gap, and the front end portion 68 of the gap lip 58 is formed on the inner peripheral side seal of the drip weather strip 16. It is in contact with the lip 42 without any gap.

The pair of clearance lips 58, 58
Are connected to each other in the longitudinal direction of the door weather strip 18 by the support walls 60 formed in a thin plate shape at the tip portions 68, 68.

In the above-described embodiment, when the front door 10 is closed, the front terminal 2 is closed.
When the zero seal portion 52 comes into contact with the vehicle body panel 22, the seal portion 52 is appropriately deformed, protrudes toward the space 74 between the inner peripheral side seal lip 42 and the front end portion 20, and has gap lips 58, 58. Of the drip weatherstrip 16 without gap, the space 74 is substantially closed by the front end 20 without gap.

That is, since the gap lips 58, 58 which are not hollow are used as means for closing the space 74, a sufficient allowance is provided for the gap lips 58, 58 so that the space 74 is closed without any gap. Even so, the influence on the door closing performance can be minimized.

Further, the front terminal section 20 can be easily molded and the cost can be reduced.

Further, since the pair of gap lips 58, 58 are connected by the support wall 60 to increase the rigidity as a whole, the pair of gap lips 58, 58 are prevented from being turned up or broken. Thus, it is possible to prevent the generation of wind noise generated from the space 74.

FIGS. 7 and 8 show a second embodiment. In the second embodiment, the outer end portions 70 of the pair of clearance lips 58 are connected to each other by a support wall 60 over the entire length.

FIGS. 9 and 10 show a third embodiment. In the third embodiment, a support wall 60 that is substantially parallel to a plane including both outer end portions 70, 70 is provided at a position on the seal portion 52 side from the outer end portion 70.

Further, the number of support walls need not be one,
As a fourth embodiment, as shown in FIGS. 11 and 12, the pair of clearance lips 58, 58 are connected between the outer end portions 70, 70 and the tip portions 68, 68 by two support walls 60a, 60b, respectively. You can also.

FIGS. 13 and 14 show a fifth embodiment. In the fifth embodiment, a pair of clearance lips 58, 58
Have a substantially rectangular cross section in a plane along the longitudinal direction of the door weather strip 18, are formed with their concave portions facing each other, and the support wall 60 is formed by the pair of clearance lips 58, 58. Are connected to each other. In the configuration of the fifth embodiment, since the clearance lips 58, 58 are formed in a substantially rectangular cross section, the inner peripheral side sealing lip 42 of the drip weather strip 16 is formed.
The shape of the space 74 can be more easily followed.
Can be closed.

[0035]

According to the first to third aspects of the present invention, there is provided a mold splitting structure used for molding a front end portion of a door weatherstrip provided with a gap lip and a support wall for preventing wind noise. It is relatively simple, and the workability is improved, and the cost can be reduced. In addition, even if the allowance of the clearance lip is sufficiently set, a decrease in the door closing performance is reduced.

According to the third aspect of the present invention, the gap lip can easily follow the deformation of the drip weather strip, and the space between the drip weather strip and the door weather strip can be more easily closed. Therefore, it is possible to more reliably prevent the generation of wind noise.

[Brief description of the drawings]

FIG. 1 is a perspective view of an automobile viewed obliquely from the front.

FIG. 2 is a perspective view showing an embodiment of a door seal structure according to the present invention in a region surrounded by a reference character A in FIG.

FIG. 3 is a perspective view of FIG. 2 viewed from the inside of the vehicle.

FIG. 4 is a sectional view taken along the line BB of FIG. 2;

FIG. 5 is a perspective view of a front end portion of a door weatherstrip attached to the front door.

FIG. 6 is a perspective view of a front terminal portion of the door weather strip according to the present invention.

FIG. 7 is a perspective view of a front end portion of a door weather strip according to a second embodiment of the present invention.

FIG. 8 is a sectional view taken along the line CC of FIG. 7;

FIG. 9 is a perspective view of a front end portion of a door weather strip according to a third embodiment of the present invention.

FIG. 10 is a sectional view taken along the line DD in FIG. 9;

FIG. 11 is a perspective view of a front end portion of a door weather strip according to a fourth embodiment of the present invention.

FIG. 12 is a sectional view taken along the line EE in FIG. 11;

FIG. 13 is a perspective view of a front end portion of a door weather strip according to a fifth embodiment of the present invention.

FIG. 14 is a sectional view taken along the line FF of FIG. 13;

FIG. 15 is a perspective view showing a weather strip mounting position around a door opening of an automobile.

FIG. 16 is a perspective view showing a structure of a front end portion of a door weather strip and a lower end portion of a drip weather strip in a conventional example.

[Explanation of symbols]

 20 front terminal 58 58 gap lip 60 support wall

Claims (3)

[Claims] 1. A drip weatherstrip mounted along an upper edge of a door opening on a vehicle body side, and a lower terminal portion in front of the vehicle body extends inside a front fender; A door weather strip located in the vicinity of the lower terminal of the drip weather strip when the front terminal of the front of the vehicle body to be molded is closed. A pair of clearance lips of the same shape protruding along a surface orthogonal to the longitudinal direction of the door weather strip and abutting against a side surface of the drip weather strip are formed, and the door weather strip is interposed between the pair of clearance lips. A support wall for connecting the pair of clearance lips to each other along the longitudinal direction of the Door seal structure for moving vehicles. 2. The door seal structure for an automobile according to claim 1, wherein the pair of clearance lips are connected to each other by two thin plate-like support walls that are substantially orthogonal to each other. 3. The pair of clearance lips have a substantially rectangular cross-section in a plane along the longitudinal direction of the door weather strip, and are formed with their concave portions facing each other. An automobile door seal structure according to claim 1.