JP3426197B2 - Automotive 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 a vehicle door seal structure which is mounted on a door trim for mounting a door body and seals between the door trim and a vehicle body.

[0002]

2. Description of the Related Art Conventional door seal structures of this type are:
For example, the ones shown in FIGS. 7 to 11 are known.

According to FIGS. 7 to 11, in a door trim a for mounting a door body (not shown), a door seal b is attached so as to surround a lower end portion thereof, and the door seal b is attached to the vehicle body side when the door body is closed. The door trim a and the vehicle body are closely adhered to each other to seal the vehicle body.

The door seal b has a seal lip c for performing a sealing function and a mounting piece d formed on the seal lip c.
It consists of and.

The attachment piece d is composed of a core material e made of iron and a skin material f made of rubber enclosing the core material e, and the skin material f and the seal lip c are integrally formed.

Further, the mounting piece portion d has an engaging piece g formed by cutting and raising the mounting piece portion d with a predetermined gap in the longitudinal direction, and the portion after the engaging piece g is formed has a notch. It is part h.

Further, as shown in detail in FIG. 11, since the door seal b is mounted so as to follow the shape of the corner portion of the door trim a, the portion of the door seal b corresponding to the corner portion of the door trim a is The V-shaped cut portion j is formed in advance. To mount the conventional door seal b configured as described above on the door trim a, the engaging piece g is inserted into the engaging hole i formed at the lower end portion of the door trim a, and then bent to stop the door trim a. I'm wearing it.

[0008]

In the conventional vehicle door seal structure configured as described above, when the engaging piece g is inserted into the engaging hole i and then bent, the core is exposed by cutting and raising. The material e is exposed on the outer surface of the door trim a, and the appearance is deteriorated due to a color difference from the skin material f. To prevent this, the core material e may be painted in the same color as the skin material f. If this happens, it will increase costs.

The presence of the notch h or the V-shaped cut j formed by cutting and raising the engaging piece g can also be observed from the outside, and from this point of view, deterioration of appearance is inevitable.

Therefore, in view of the above point, the present invention has an object to provide a door seal structure for an automobile which is improved in appearance without increasing the cost.

[0011]

In order to achieve the above object, the present invention includes a door seal mounted on a door trim for mounting a door body to seal between the door trim and a vehicle body, including a corner portion of the door trim. A seal body that elastically deforms so as to follow the shape of the downward facing surface portion and is attached to the downward facing surface portion of the door trim so as to be closely attached to the vehicle body, thereby sealing between the door trim and the vehicle body.
Together with the sealing body composed of its longitudinal direction into a plurality intermittently integrally formed with the engagement pieces to form an engaging protrusion for engaging with the engaging hole formed in the door trim in engagement piece, the
Forming a thin-walled distal end portion continuously to the engaging projection and the engaging protrusion is configured to attach the seal body to the door trim by engaging with the engagement hole of the door trim side It is characterized by

According to the present invention, since the door seal is integrally formed with a plurality of engaging pieces intermittently on the seal body, the conventional core material is exposed or the engaging pieces are cut and raised. The notch or V-shaped cut formed can be eliminated, which contributes to improving the appearance of the door trim. Furthermore, the engagement piece can be attached to the door trim simply by pulling the engagement piece into the engagement hole on the door trim side.
Workability can be improved without the need for conventional bending work.

Further, in the engagement piece according to the present invention, a strip-shaped protruding piece continuously formed on the seal body is appropriately spaced.
Since it is formed by notching and holding, the entire door seal can be manufactured by extrusion molding or the like as in the conventional case.

Further, since the engaging pieces in the present invention are symmetrically arranged with the center line in the longitudinal direction of the seal main body being sandwiched therebetween, they can be commonly used for both left and right door trims of the vehicle body. .

Further, since the seal body according to the present invention is formed into a tubular body having a hollow portion, it is easy to follow the shape of the vehicle body side, and an improvement of the sealing function can be expected.

Further, according to the present invention, since the partition wall which divides the hollow portion of the seal body into two is provided, the sectional shape of each of the pair of divided hollow portions formed by dividing the hollow portion by the partition wall is different. By selecting large or small, the degree of collapse of the seal body by the vehicle body can be selected in design, and the degree of freedom in design increases.

Further, according to the present invention, since the lip-shaped seal portion which is in close contact with the door trim is integrally formed on the engagement piece between the seal body and the engagement projection, the seal body functions as a seal with the vehicle body. Therefore, the function of sealing the door trim can be achieved, and the function of sealing the door trim and the vehicle body in the entire door seal can be further improved.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

FIG. 1 is a front view of an automobile door trim adopting the first embodiment of the present invention, FIG. 2 is a sectional view taken along the line A--A of FIG. 1, and FIG. 3 is a kicking plate whose seal body is on the vehicle body side. Fig. 1A showing the state of being crushed and elastically contacted
-A sectional drawing and FIG. 4 are perspective views of the door seal in FIG.

In FIGS. 1 to 4, a door trim 2 is mounted on a door body 1, and the door trim 2 extends from a lower surface portion 2a of a lower end portion thereof to a part of both rounded corner portions 2b, 2b. As described above, the door seal 3 is mounted around the door.

The door seal 3 is made of an elastic material such as rubber or polyethylene foam, and is elastically deformed so as to follow the shapes of the downward facing surface portion 2a and both corner portions 2b, 2b of the door trim 2, and the kicking plate 10 on the vehicle body side. A seal body 4 that seals between the door trim 2 and the kicking plate 10 by closely contacting each other, and a seal body 4
And a plurality of engaging pieces 5 integrally formed with each other.

The seal body 4 is formed as a tubular body having a hollow section 4a and having a substantially heart-shaped cross section.

Each of the engaging pieces 5 is formed integrally with the seal main body 4 by projection, is formed intermittently in the longitudinal direction of the seal main body 4, and has a relatively thick base end 5a and base end 5a.
Engagement protrusion 5 formed continuously so as to protrude on both sides of a
b and a relatively thin-walled tip portion 5c formed continuously with the engaging projection 5b.

Then, the door seal 3 is inserted into the engaging hole 2c formed in the downward surface 2a of the door trim 2 from the tip portion 5c, and when the base end portion 5a reaches the engaging hole 2c, the engaging protrusion 5b causes the door trim 2 to move. Engage the engaging hole 2c from the inside of
It is designed to be attached to the door trim 2.

More specifically, the base end portion 5a has a constricted portion 5e at the insertion portion of the engagement hole 2c, and as a result, a step portion 5f is formed, which is related to the step portion 5f. The door trim 2 is sandwiched between the fitting protrusions 5b.

At this time, the seal body 4 is positioned so as to project below the lower surface 2a of the door trim 2 and is made of a soft elastic material. Of course, it can be easily elastically deformed along the shapes of the corners 2b, 2b as well as along the shape. On the other hand, although the engaging piece 5 is configured as a rigid body to some extent, it is formed intermittently with a gap in the longitudinal direction of the seal body 4, so that the seal body 5 extends along the downward surface 2a of the door trim 2. When 4 is elastically deformed, this deformation can be easily followed.

As a result, when the door body 1 is closed, the kicking plate 10 on the vehicle body side is elastically deformed so that the seal body 4 is crushed (state shown in FIG. 3), and the kicking plate 10 on the vehicle body side and the door trim 2 are formed. It will be a seal between and.

According to the above embodiment, the door seal 3
However, since the engaging piece 5 is integrally formed with the seal body 4, the core material as in the prior art is exposed, and the notch portion or the V-shaped cut portion formed by cutting and raising the engaging piece 5 is eliminated. This contributes to improving the appearance of the door trim 2. Further, the engagement piece 5 can be attached to the door trim 2 simply by pulling the engagement piece 5 into the engagement hole 2c on the door trim 2 side, and the bending work unlike the conventional case is not required. Can be improved.

Further, since the seal main body 4 is formed in a tubular body having the hollow portion 4a, it becomes easier to follow the shape of the kicking plate 10 on the vehicle body side, and the improvement of the sealing function can be expected.

The door seal 3 in the above embodiment is
As shown in FIG. 4, a strip-shaped protruding piece for forming the engaging piece 5 is continuously formed on the seal body 4, and then the cut portion 6 is cut off to form the engaging piece 5. Therefore, it can be manufactured by extrusion molding or the like as in the conventional case.

5 and 6 show another embodiment of the present invention.

According to FIG. 5, the overall shape of the seal body 4 is almost the same as that of the above-mentioned embodiment, but a partition wall 7 is provided in the hollow portion 4a of the seal body to divide into two divided hollow portions 4b and 4c. is doing.

As a result, the degree of collapse of the seal body 4 by the kicking plate 10 on the vehicle body side can be selected by designing by selecting the cross-sectional shape of the divided hollow portions 4b, 4c, and the degree of freedom in designing can be increased. Will increase.

Further, according to the embodiment shown in FIG. 5, the lip-shaped seal portion 5d is integrally formed on the base end portion 5a of the engagement piece 5 between the seal body 4 and the engagement projection 5b so as to project. The lip-shaped seal portion 5d is elastically contacted with the downward facing surface portion 2a of the door trim 2 by being attached to the door trim 2.

As a result, in combination with the sealing function of the seal body 4 with the kicking plate 10 on the vehicle body side, the sealing function with the door trim 2 is fulfilled, and the door trim 2 and the kicking plate 10 on the vehicle body side of the entire door seal 4 are fulfilled. The sealing function can be further improved.

In the embodiment shown in FIG. 6, a plurality of engaging pieces 5 are arranged symmetrically with the center line O in the long side direction of the seal body 4 sandwiched therebetween. , Can be commonly used for the left and right door trims 2 of the vehicle body.

[0037]

As described above, according to the present invention,
Since the door seal is configured by integrally molding the engaging piece on the seal body, the conventional core material is exposed or the notch or V-shaped cut formed by cutting and raising the engaging piece. The parts can be eliminated, which contributes to improving the appearance of the door trim.

Further, according to the present invention, the engagement piece can be attached to the door trim simply by pulling the engagement piece into the engagement hole on the door trim side, and the conventional bending work is required. Therefore, the workability can be improved.

[Brief description of drawings]

FIG. 1 is a front view of a vehicle door trim that employs a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. FIG. 4 is a cross-sectional view taken along the line AA of FIG. 1 showing a state where the seal body is crushed and elastically contacted with a kicking plate on the vehicle body side, and FIG. 4 is a perspective view of the door seal in FIG.

FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1, showing a state in which the seal body is crushed and elastically contacted by the kicking plate on the vehicle body side.

FIG. 4 is a perspective view of a door seal in FIG.

5 shows another embodiment of the present invention, A- of FIG.
FIG.

FIG. 6 is a front view of a door seal showing still another embodiment according to the present invention.

FIG. 7 is a front view of a conventional automobile door trim.

FIG. 8 is an enlarged view of a circle B in FIG.

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

10 is a sectional view taken along line EE of FIG.

FIG. 11 is an enlarged view within a circle c in FIG.

[Explanation of symbols]

1 door body 2 door trim 2a downward facing part 2b corner 2c Engagement hole 3 door seal 4 Seal body 4a hollow part 4b, 4c split hollow part 5 engagement pieces 5b Engagement protrusion 7 partition 10 kicking plate (car body)

Claims (6)

(57) [Claims] 1. A door trim mounted on a door trim for mounting a door body and sealing between a door trim and a vehicle body is elastically deformed so as to follow a shape of a downward surface portion including a corner portion of the door trim. A seal main body that is mounted on the downward surface of the vehicle and is closely attached to the vehicle body to seal between the door trim and the vehicle body;
Together with the sealing body composed of its longitudinal direction into a plurality intermittently integrally formed with the engagement pieces to form an engaging protrusion for engaging with the engaging hole formed in the door trim in engagement piece, the
Forming a thin-walled distal end portion continuously to the engaging projection and the engaging protrusion is configured to attach the seal body to the door trim by engaging with the engagement hole of the door trim side A vehicle door seal structure characterized by the above. Wherein said engagement piece is an automobile door seal according to claim 1, characterized in that formed by cutting the strip-shaped protruding pieces continuously formed on the seal body cut with an appropriate gap Construction. Wherein said engagement piece, the seal body across the central line in the longitudinal direction, automotive door seal structure of claim 1 or 2, wherein the symmetrically arranged. 4. The automobile door seal structure according to claim 1, wherein the seal body is formed in a tubular body having a hollow portion. 5. The door seal structure for an automobile according to claim 4, wherein a partition wall that divides the hollow portion of the seal body into two is provided. 6. The lip-shaped seal portion that comes into close contact with a door trim is integrally formed on an engagement piece between the seal body and the engagement protrusion.
Izu Re or automotive door seal structure according to scratch.