JPH09315150A - Door weather strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door weather strip having enhanced elastic contact with the opening edge of a vehicle body panel. SOLUTION: A door weather strip 40 which, when a door 30 is closed, is brought into contact firstly at its tip 43 of a hollow seal part 42 with an opening edge 20 of the body panel and is bent at its belly part 44 of the hollow seal part 42 against the door 30 with its root 46 being as the axis, is formed at its root 46 on the side elastically contacting with the body panel opening edge 20 with a U-shaped projection 47 having greater rigidity than the other parts so that the hollow seal part 42 is pressed toward the tip 43 by a door edge 31 when the door 30 is closed. The hollow seal part 42 is thus pushed by the door edge 31 through the projection 47 to cause the tip 43 to move by sliding on the surface of the body panel opening edge 20, and the belly part 44 of the hollow seal part 42 is bent against the door 30 with the root 46 being as the axis to bring the surface of the hollow seal part 42 on the interior 71 side into continuous elastic contact with the body panel opening edge 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the elastic contact property of a door weather strip which is attached to a peripheral portion of a door and elastically contacts with an opening edge portion of a body panel.

[0002]

2. Description of the Related Art Conventionally, as a door weather strip 50 which is attached to a peripheral portion of a door and elastically contacts with an opening edge portion of a body panel, as shown in FIGS. 1 to 4, a base portion fitted to a retainer 32 of a peripheral edge portion 31 of a door. 51, a hollow seal portion 5 having a substantially elliptical cross section which is elastically brought into contact with the opening edge portion 20 of the body panel.
A combination of two is used.

One type of hollow seal portion is called a bending type. In this type, as shown in FIG. 2, when the door 30 is rotated and moved in the closing direction 11 to be closed, first, the front end portion 5 of the hollow seal portion 52 is first closed.
3 makes elastic contact with the surface of the body panel opening edge portion 20, and then the belly portion 54 of the hollow seal portion 52 is sandwiched between the body panel opening edge portion 20 and the door peripheral edge portion 31 and is over-compressed. The tip portion 53 of the portion 52 slides on the outer surface of the body panel opening edge portion 20, and the abdomen portion 54 of the hollow seal portion 52 is bent toward the door 30 with its root 56 as an axis as shown in FIG. Is to make elastic contact with the outer surface of the opening edge portion 20 of the body panel.

However, due to variations in the shape or surface treatment of the bending type hollow seal portion 52, the tip end portion 53 of the hollow seal portion 52 is difficult to slip on the outer surface of the body panel opening edge portion 20 and is not bent, as shown in FIG. As shown in (1), it exhibits a so-called compression type behavior in which it is over-compressed at that position, the surface on the side of the vehicle interior 71 is curved, and the tip portion 53 and the lower abdominal portion 55 make elastic contact, and must be in continuous elastic contact. This may cause a problem.

As shown in FIG. 5, when the hollow seal portion 52 has a slightly protruded abdomen 54, the abdomen 54 is first
Is elastically contacted with the outer surface of the opening edge portion 20 of the body panel, the tip portion 53 is slippery, and the belly portion 54 of the hollow seal portion 52 is easily bent to the door 30 side.
When closed, there is a problem that a V-shaped gap 59 is likely to occur between the tip end portion 53 and the body panel opening edge portion 20 as shown in FIG.

[0006]

A problem to be solved by the invention is that the conventional door weather strip described above is provided with a door 30.
When closed, due to variations in the shape of the hollow seal portion 52 or surface treatment, the hollow seal portion 52 does not continuously make elastic contact, or a V-shaped gap 59 is formed between the tip portion 53 and the body panel opening edge portion 20. In view of the above, the present invention provides a door weather strip that solves the above-described problems and has excellent elastic contact with the body panel opening edge portion 20.

[0007]

According to the present invention, as shown in FIG. 7, a base portion 41 fitted to a retainer 32 of a door peripheral portion 31 is elastically brought into contact with a body panel opening edge portion 20 and has a substantially elliptical cross section. While integrally connecting the hollow seal portion 42,
When the door 30 is closed, first, the tip end portion 43 of the hollow seal portion 42 is elastically brought into contact with the body panel opening edge portion 20, and the abdomen portion 44 of the hollow seal portion 42 is bent toward the door 30 side with its root 46 as an axis. In the door weather strip 40 configured as described above, when the door 30 is closed, the hollow seal portion 42 is pushed toward the tip end portion 43 by the door peripheral edge portion 31 so as to elastically contact the body panel opening edge portion 20. The base 46 has a greater rigidity than the other parts,
It is formed by forming a substantially V-shaped protrusion 47.

According to the present invention, when the door 30 is closed,
First, the tip end portion 43 of the hollow seal portion 42 abuts on the body panel opening edge portion 20, and then the abdominal portion 44 of the hollow seal portion 42 is sandwiched between the body panel opening edge portion 20 and the door peripheral edge portion 31. The protrusion 47 is pushed by the door peripheral portion 31 as it is compressed, and the distal end portion 43 of the hollow seal portion 42 is pressed.
Slides on the surface of the opening edge portion 20 of the body panel, and the belly portion 44 of the hollow seal portion 42 is bent toward the door 30 with its root 46 as an axis.
The surface on the side is in continuous elastic contact with the opening edge portion 20 of the body panel. This action is hardly affected even if there is some variation in the shape or surface treatment of the hollow seal portion 42.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Referring to FIGS. 1, 7 and 8, an embodiment of the present invention will be described. 20 is a body panel opening edge portion, 31 is a door peripheral edge portion, 32 is an inner surface of the door peripheral edge portion 31. And 40 is a door weather strip that seals between the body panel opening edge portion 20 and the door peripheral edge portion 31, and is a base portion 41 that is fitted to the retainer 32, and is integrally connected to the base portion 41. The hollow seal portion 42 has a substantially elliptical cross section. When the door 30 is closed, the hollow seal portion 42 first has its tip portion 4
3 is in contact with the body panel opening edge portion 20, and the belly portion 44 of the hollow seal portion 42 is pushed by the body panel opening edge portion 20 and bent toward the door 30.

Further, according to the present invention, in the portion of the base 46 on the side elastically contacting the opening edge portion 20 of the body panel,
A dogleg-shaped protrusion 47 is formed that has higher rigidity than the other portions. Moreover, the protrusion 47 is formed on the door peripheral portion 31.
When the door 30 is closed or the door 30 is over-compressed and bent, the door peripheral portion 31 is elastically contacted.

The operation will be described. When the door 30 is closed, first, the tip end portion 43 of the hollow seal portion 42 comes into contact with the body panel opening edge portion 20. Next, the belly portion 44 of the hollow seal portion 42 is sandwiched between the body panel opening edge portion 20 and the door peripheral edge portion 31 and is over-compressed. As a result, the hollow seal portion 42 is strongly pressed against the door peripheral edge portion 31 via the protrusion 47 having high rigidity, and the tip end portion 43 slides on the outer surface of the body panel opening edge portion 20 and moves. At the same time, the belly portion 44 of the hollow seal portion 42 is pushed by the body panel opening edge portion 20 and bent toward the door 30 with the base 46 as an axis, and the surface of the hollow seal portion 42 on the vehicle interior 71 side is closed. It makes continuous elastic contact with the outer surface of. Since the above-described operation is configured such that the hollow seal portion 42 is supported by the protrusion 47 having high rigidity and strongly pushed by the door peripheral edge portion 31, there is some variation in the shape or surface treatment of the hollow seal portion 42. However, it is hardly affected by it.

[0012]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it is excellent in elastic contact with the body panel opening edge portion 20, and even if there is some variation in the shape or surface treatment of the hollow seal portion 42. When the door 30 is closed with almost no influence, the tip end portion 43 slides on the surface of the body panel opening edge portion 20, and the abdomen portion 44 of the hollow seal portion 42 moves toward the door 30 side around its base 46 as an axis. The surface of the hollow seal portion 42 on the vehicle interior 71 side is bent and the body panel opening edge portion 2 is formed.
Elastic contact is continuously made with 0, and a satisfactory seal is always obtained.

[Brief description of drawings]

FIG. 1 is a side view of an automobile.

FIG. 2 is a view showing a conventional example with a door opened.
12 is a sectional view taken along the line 12-12.

FIG. 3 is a view corresponding to FIG. 2 with a door closed.

FIG. 4 is a cross-sectional view showing an abnormal state in which there is a problem with the elastic contact property when the door is closed in FIG.

FIG. 5 is a sectional view taken along the line 12-12 of FIG. 1 showing another conventional example with the door opened.

FIG. 6 is a cross-sectional view showing a state in which there is a problem with the elastic contact property when the door is closed in FIG.

FIG. 7 shows a reference numeral 12 in FIG. 1 showing an embodiment of the present invention.
FIG. 12 is a sectional view taken along line -12.

8 is a cross-sectional view showing a state in which the door of FIG. 7 is closed.

[Explanation of symbols]

 20 Body Panel Open Edge 30 Door 31 Door Peripheral 32 Retainer 40 Door Weather Strip 41 Base 42 Hollow Seal 43 43 Tip 44 Abdomen 46 Base 47 Projection 50 Door Weather Strip 51 Base 52 Hollow Seal 53 Hollow Seal 53 Tip 54 of the hollow seal portion abdomen 55 hollow seal portion abdomen 56 root 59 gap 71 inside the vehicle

Claims (1)

[Claims] 1. A retainer (3) for a peripheral edge (31) of a door.
The hollow seal portion (42) having a substantially elliptical cross section to be elastically contacted with the opening edge portion (20) of the body panel is integrally coupled to the base portion (41) fitted in 2), and the door (30) is closed. When first, the tip portion (43) of the hollow seal portion (42)
While making elastic contact with the body panel opening edge (20),
The abdomen (44) of the hollow seal portion (42) is attached to the base (4) thereof.
A door weather strip (40) configured to be bent toward a door (30) around a shaft (6) as an axis, the door (30)
When the door is closed, the hollow seal part (42) is closed by the door peripheral part (3
1) The base (4) on the side elastically contacting the opening edge (20) of the body panel as pushed toward the tip (43).
A door weather strip characterized in that a substantially dogleg-shaped protrusion (47) having higher rigidity than other portions is formed in the portion (6).