JP3537892B2 - Automotive weather strip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip mounted on an inner peripheral edge of an opening of an automobile which is opened and closed by a sliding door.

[0002]

2. Description of the Related Art As shown in FIG. 4, a weather strip of this kind is attached to an inner peripheral edge of an opening W which is opened and closed by a sliding door D of an automobile, and as shown in FIG.
A seal portion 8 having an annular cross section is provided on a side surface of a waist portion 7 having a U-shaped cross section which is sandwiched between the flanges F. The reason why the seal portion 8 is formed in an annular cross section is that the entry angle P of the slide door D with respect to the seal portion 8 with respect to the seal portion 8 is small on the front side and large on the rear side, depending on where the weather strip is attached to the opening W. This is because it is easy to cope with these various approach angles P because they are significantly different.

[0003]

However, when the seal portion 8 has an annular cross section as described above, as shown in FIG. 6, on the front side where the approach angle P of the slide door D at the time of closing is particularly small, as shown in FIG. There is a problem in that it comes into contact with the slide door D and is easily pushed down at the base portion 8a to protrude, so that the sealing area is narrowed, and high-pressure water such as during flushing enters the vehicle interior, and the sound insulation is deteriorated. In view of the above-mentioned conventional problems, an object of the present invention is to provide a weather strip for an automobile in which a seal portion is prevented from protruding from a slide door to prevent intrusion of high-pressure water and improve sound insulation. .

[0004]

According to the present invention, a weather strip 1 is mounted on an inner peripheral edge of an opening W which is opened and closed by a sliding door D of an automobile, as shown in FIG. The hollow seal portion 3 erected substantially vertically on the side surface 2a of the waist portion 2 having a U-shaped cross section sandwiched between the flanges F of the opening W has an arc-shaped portion 4 and a left and right divergent shape in cross section. Substantially linear portions 5a, 5b of
And the rising angles α and β of the substantially linear portions 5a and 5b with respect to the side surface 2a of the waist portion 2 are substantially equal to or smaller than the entry angles P ′ and P of the sliding door D, respectively. When the sliding door D is in the above-mentioned hollow seal portion 3
When the abutment is made on the arcuate portion 4, the substantially linear shape 5b or 5a on the entrance side of the slide door D falls on the side surface 2a side of the waist portion 2 due to the load. More specifically, in mounting on the front side, the right side substantially linear portion 5b located on the distal end side of the flange F with respect to the left side substantially linear portion 5a located on the base side of the flange F The rising angle β of the waist portion 2 with respect to the side surface 2a is substantially equal to or smaller than the entry angle P of the front end of the slide door D, and when the slide door D is closed, the slide door D contacts the arc-shaped portion 4 of the hollow seal portion 3. When the load comes into contact with the slide door D, the right side substantially linear portion 5b on the entry side of the slide door D is formed to fall down to the side surface 2a of the waist portion 2, and at the rear side, the root of the flange F is attached. Angle α of the left side substantially linear portion 5a located on the side with respect to the side surface 2a
However, the approach angle of the slide door D is substantially equal to or smaller than the approach angle P ′ of the rear end thereof, and the approach angle of the slide door D with respect to the hollow seal portion 3 is larger on the rear side than on the front side.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. In FIG. 1, reference numeral 1 denotes a sliding door D of an automobile.
Is a weather strip attached to a flange F on the inner peripheral edge of an opening W that opens and closes, and a waist portion 2 having a U-shaped cross section sandwiched between the flanges F, and a substantially vertical standing on a side surface 2 a of the waist portion 2. And a hollow seal portion 3 provided. The hollow seal portion 3 has an arc-shaped portion 4 in cross section and left and right divergent substantially linear portions 5a and 5b, and a rising angle β of the right substantially linear portion 5b with respect to the side surface 2a is a sliding door. D is substantially equal to or smaller than the approach angle P at the front end of the front end D.

In contrast to the weather strip 1 attached to the flange F of the opening W as described above, as shown in FIG.
When the sliding door D abuts at the approach angle P when closed, the substantially linear portion 5b is easily displaced in the direction of the arrow A around the base point 6 and falls down toward the side surface 2a. Therefore, the hollow seal portion 3 does not protrude outside the slide door D unlike the conventional case shown in FIG.

A graph showing the load and the amount of deflection of the hollow seal portion 3 at the time of contact with the door is shown as a solid line in FIG. 3, and the contact load with the sliding door D is always smaller than that of the conventional case shown by the dotted line. Therefore, the feeling of closing the door is improved. Further, since the hollow seal portion 3 does not protrude as in the related art, even if the contact load is small as described above, the contact area is widened, the sealing property is improved, and the watertightness and the sound insulation are improved.
Further, intrusion of high-pressure water is prevented. On the other hand, on the rear side, as shown in FIG.
When the slide door D abuts at the approach angle P ′ when the door is closed, the substantially linear portion 5a whose rising angle with respect to the side surface 2a is α is displaced in the direction of arrow B and falls down to the side surface 2a side, similar to the front side. Has the effect of

[0008]

As described above, in the weather strip of the automobile according to the present invention, the hollow seal portion is formed by an arc-shaped portion in cross section and the left and right divergent substantially straight portions. Since it easily falls down to the waist side at the time of contact with the slide door, the hollow seal portion does not protrude as in the related art, and the hollow seal portion has a large contact area with the slide door and makes soft contact with the slide door. Therefore, there is an effect that the sealing property such as prevention of intrusion of high-pressure water and the door closing feeling are improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a weather strip of an automobile according to the present invention.

FIG. 2 is a cross-sectional view of a main part in a state where the weather strip is in contact with a slide door.

FIG. 3 is a graph showing a load-deflection curve of a weather strip.

FIG. 4 is a side view of an automobile provided with a slide door.

FIG. 5 is a cross-sectional view of a conventional weatherstrip.

FIG. 6 is a cross-sectional view showing a state where a slide door is in contact with the weather strip of the above.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Weather strip α Rising angle 2 Waist part β Rising angle 2a Side surface P Entry angle 3 Hollow seal part P 'Entry angle 4 Arc-shaped part A Arrow 5a Substantially linear part B Arrow 5b Substantially linear part 6 Base point D Sliding door W Opening Part F Flange part

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

Claims (2)

(57) [Claims] 1. A weather strip (1) attached to an inner peripheral edge of an opening (W) opened and closed by a slide door (D) of an automobile, and is sandwiched between flanges (F) of the opening (W). A hollow seal portion (3) erected substantially vertically on a side surface (2a) of a waist portion (2) having a U-shaped cross section.
Is composed of an arc-shaped portion (4) and a substantially divergent, substantially linear portion (5a, 5b) in cross section. In mounting on the front side, the left side portion located on the base side of the flange (F) is generally used. The rising angle (β) of the right side substantially linear portion (5b) located on the tip side of the flange (F) with respect to the straight portion (5a) with respect to the side surface (2a) is the front side of the sliding door (D). When the sliding door (D) comes into contact with the arc-shaped portion (4) of the hollow seal portion (3) when the sliding door (D) is closed, the sliding door (D) is closed by the load. D) The substantially straight portion (5
(b) a weather strip for automobiles, wherein the weather strip is formed so as to fall down on the side (2a) of the waist (2). 2. A weather strip (1) attached to an inner peripheral edge of an opening (W) opened and closed by a slide door (D) of an automobile, and is sandwiched between flanges (F) of the opening (W). A hollow seal portion (3) erected substantially vertically on a side surface (2a) of a waist portion (2) having a U-shaped cross section.
Is composed of an arc-shaped portion (4) and a substantially divergent, substantially linear portion (5a, 5b) in cross section. In mounting on the front side, the left side portion located on the base side of the flange (F) is generally used. The rising angle (β) of the right side substantially linear portion (5b) located on the tip side of the flange (F) with respect to the straight portion (5a) with respect to the side surface (2a) is the front side of the sliding door (D). At the rear side, the angle (P) is substantially equal to or smaller than the entry angle (P) of the end, and the side (2a) of the left-side substantially linear portion (5a) located at the base of the flange (F).
The rising angle (α) with respect to a) is substantially equal to or smaller than the entry angle (P ′) of the rear end of the sliding door (D), and the sliding door (D) with respect to the hollow seal portion (3). When the sliding door (D) comes into contact with the arc-shaped portion (4) of the hollow seal portion (3) when the sliding door (D) is closed, the load of the sliding door (D) is increased by the load. The substantially straight portions (5a, 5b) on the approach side are the side surfaces (2a) of the waist portion (2).
A weather strip for an automobile, wherein the weather strip is formed so as to fall down to a side.