JP3329106B2 - Car door seal structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile door seal structure.

[0002]

2. Description of the Related Art FIGS. 3 to 5 show a conventional automobile door seal structure, in which a weather strip 3 on the vehicle body side is mounted on a substantially upper half periphery of a vehicle body opening 2 in which a door 7 of a vehicle body 1 is mounted. A weather strip on the door side (not shown) is attached to the periphery of the door 7 below the door waist portion W of the door 7 to seal the inside and outside of the vehicle when the door 7 is closed.

The weather strip 3 on the vehicle body side includes a welt portion 4 fitted to a peripheral flange 2 a of the vehicle body opening 2, and a hollow seal lip 5 integrally formed with the welt portion 4.

In this example, the door sash 8 is connected to the door 7
On the side surface of the door sash 8 on the vehicle interior side, the side surface is formed into a substantially triangular cross section by bulging toward the vehicle interior side,
A sealing surface 9 that contacts the sealing lip 5 of the weather strip 3 is formed.

[0005] The hollow sealing lip 5 has a corner portion C of the weather strip 3 corresponding to a corner portion of the door sash 8, particularly, a corner portion C ₁ bent at a substantially right angle.
_{In 2} , by the fact that the seal lip 5 is bent,
To prevent the hollow becomes impossible to perform proper seal collapses, the hollow sealing lip 5 of the corner portion C ₂ having a relatively high hardness as shown in FIG. 5 resin, an elastic material such as rubber The spacer 6 having a circular cross-section is inserted to maintain the shape.

The spacer 6 is formed to have a slightly larger diameter than the inner diameter of the seal lip 5, and is press-fitted into a hollow portion to maintain a fixed position.

In FIG. 4, 10 is a roof panel, 11 is fitted to a flange 10a on a side edge of the roof panel, and when the door is closed, a roof drip 12 is formed in close contact with a side surface of a door sash outer peripheral portion on a vehicle compartment side. Drip weather strip,
13 is a roof side rail, 14 is a roof trim, 15
Denotes a glass run which also serves as a rule for slidingly guiding the door window panel 16 by being fitted to the flange 8a on the inner periphery of the door sash.

This similar structure is disclosed, for example, in Japanese Utility Model Application Laid-open No. 63-12 / 1988.
No. 432.

[0009]

SUMMARY OF THE INVENTION Weather strip 3
Since the inside sealing lip 5 of the corner portion C ₂ has been inserted position more spacers 6 hardness, sealing surface 9 as shown in FIG. 4 when the door is closed at the corner portion C ₂ spacer arrangement portion and a strong contact As a result, the reaction force of the seal is increased, and the door closing performance is deteriorated.

Further, even if the spacer 6 is press-fitted into the seal lip 5 so as to maintain a fixed position, there is a problem that the spacer 6 is gradually shifted from the fixed position by repeated opening and closing of the door.

Furthermore, the spacer 6 as much as possible the deviation does not move as the foregoing as the seal lip 5 on the relationship is formed with a larger diameter than the inner diameter, the sealing lip 5 in the corner portion C ₂ as shown in FIG. 5 since the protruding height of the sealing lip 5 in the general part of the weather strip 3 becomes higher by H dimensions Nde Rise, panel difference to the corner portion C ₁ of the door sash 8 is caused to decrease the appearance at the door closing state Cause the condition to be lost.

Accordingly, the present invention can prevent the sealing reaction force from increasing at the corners of the weather strip on which the spacers are provided, improve the door closing performance, and prevent the corners of the door sash from floating up. It is intended to provide a door seal structure of an automobile which can improve the performance.

[0013]

According to the present invention, a weather strip having a hollow seal lip is attached to the periphery of an opening of a vehicle body to which a door is attached. In a structure in which a sealing surface abutting on a seal lip is formed by projection, and a spacer for shape retention is press-fitted and arranged in a seal lip at a corner portion of a weather strip corresponding to a corner portion of the door sash,
The seal surface at the corner portion of the door sash is formed to be lower than the protruding height of the seal surface of the general portion of the door sash over the region where the spacer arranging portion of the seal lip abuts, and a recess is provided.

[0014]

The sealing surface at the corner of the door sash is formed to be lower than the projecting height of the sealing surface of the general door sash over the area where the spacer mounting portion of the sealing lip at the corner of the weather strip on the vehicle body abuts. As a result, when the door is closed, there is no strong contact between the sealing surface at the corner and the portion of the seal lip which has been increased in diameter by disposing the spacer of the seal lip. It can be like.

[0015] As a result, the door closeability is improved, and the sense of quality can be further improved.

Also, since the large-diameter portion is received by the spacer arrangement of the seal lip in the concave portion where the sealing surface is formed low, it is possible to prevent the corner portion of the door sash from rising and improve the external appearance. Can be.

Further, since the spacer-provided portion of the seal lip is received in the concave portion, the spacer does not move from a fixed position even when the door is repeatedly opened and closed, and a stable seal can be performed. .

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, in which the same reference numerals are given to the same parts as in the above-mentioned conventional construction.

1 and 2, a weather strip 3 attached to a peripheral flange 2a of a vehicle body opening 2 to which a door 7 is attached is provided with a hollow sealing lip 5 and bent substantially at a right angle to the door sash 7. Corner C ₁
It is then disposed by press-fitting the spacer 6 consisting of relatively high hardness circular section resilient material in the sealing lip 5 of the corner portion C ₂ corresponding to.

On the other hand, the side of the door sash 8 integrally formed with the door 7 is formed into a substantially triangular cross section by bulging the side of the door sash 8 into the side of the cabin to form the seal lip 5 of the weather strip 3. A sealing surface 9 to be abutted is formed.

The basic structure is the same as that of the prior art, except that the sealing surface 9 at the corner C ₁ of the door sash 8 is provided.
Is formed to be lower than the protruding height of the sealing surface 9 of the general portion of the door sash 8 over a region where the spacer 6 provided portion of the seal lip 5 abuts, and is provided with a concave portion 9A.

The molded depth of the recess portion 9A are the general portion and, comparable to the dimensional difference H of the projecting height of the corner portion C ₂ press-fitted disposed spacers 6 of the seal lip 5 shown in FIG.

Therefore, according to the structure of this embodiment, when the door 7 is closed, the sealing surface 9 at the corner C ₁ of the door sash 8 and the spacer 6 of the sealing lip 5 at the corner C ₂ of the weatherstrip 3 are closed. By the arrangement, strong contact with the enlarged diameter portion is eliminated, and the sealing reaction force of the seal lip 5 can be made uniform over the entire length.

As a result, the door closeability is improved, and the door does not become a so-called half-door, and the sense of quality and reliability can be further improved.

Further, the recessed portion 9A of the sealing surface 9 of the corner portion C ₁ is formed lower door sash 8, since the large diameter of the portion by provision of the spacers 6 of the seal lip 5 described above is received, without causing floating of the corner portion C ₁ of the sash 8, therefore, it is possible to improve the appearance without the panel surface difference is produced between the adjacent panels at the corner portion C _1.

Further, since the spacer provided portion of the seal lip 5 is received in the recess 9A in this manner, the spacer 6 does not move from a fixed position even when the door 7 is repeatedly opened and closed, and is stable. Sealing can be done.

[0027]

As described above, according to the present invention, the door sash is formed so that the sealing surface of the corner portion of the door sash covers the area where the spacer mounting portion of the seal lip of the corner portion of the vehicle-side weather strip abuts. Since the recess is formed so that it is lower than the protruding height of the seal surface of the general part, there is no strong contact between the seal surface at this corner and the part whose diameter is increased by disposing the spacer of the seal lip when the door is closed. Thus, the sealing reaction force of the sealing lip can be made uniform over the entire length.

Further, since the sealing reaction force can be made uniform over the entire length while the spacer of the seal lip at the corner of the weather strip is present, the sealing performance of the corner is not impaired.

In addition, since the portion of the door sash corner portion having a large sealing surface is formed in the recess formed with a low sealing surface at the sealing portion, the floating portion of the door sash corner portion does not occur. At the door sash corner, there is no difference in panel surface between adjacent panels, and the appearance can be improved.

Further, since the spacer-provided portion of the seal lip is received in the recess, the spacer can be prevented from being displaced from a predetermined position even when the door is repeatedly opened and closed, and a stable seal can be performed. it can.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along the line AA of FIG. 3 showing one embodiment of the present invention.

FIG. 2 is a perspective view of a corner portion of the door sash as viewed from a passenger compartment side.

FIG. 3 is a side view of an automobile to which the present invention is applied.

FIG. 4 is a sectional view similar to FIG. 1, showing a conventional structure.

FIG. 5 is a cross-sectional view showing a general portion and a corner portion of the seal lip in comparison.

[Explanation of symbols]

2 Body opening 3 Weather strip 5 Seal lip 6 Spacer 7 Door 8 Door sash 9 Seal surface 9A recess C ₁ Corner of door sash C ₂ Corner of weather strip

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60J 5/04 B60J 10/08 B60R 13/06

Claims (1)

(57) [Claims] 1. A weather strip having a hollow seal lip is mounted on the periphery of an opening of a vehicle body to which a door is mounted, and a sealing surface which abuts on the seal lip is formed on a side surface of the door sash on the vehicle compartment side. And, in a structure in which a spacer for shape retention is press-fitted and arranged in a seal lip at a corner portion of a weather strip corresponding to a corner portion of the door sash, the sealing surface at the corner portion of the door sash is arranged with a spacer of the seal lip. A door seal structure for an automobile, wherein a recess is provided to be lower than a protruding height of a seal surface of a general portion of a door sash over a region where the installation portion contacts.