Movable or removable closures – Closure seal; e.g. – striker gasket or weatherstrip – With corner or corner forming portions; i.e. – corner seal
Reexamination Certificate
2000-10-12
2002-06-18
Strimbu, Gregory J. (Department: 3634)
Movable or removable closures
Closure seal; e.g., striker gasket or weatherstrip
With corner or corner forming portions; i.e., corner seal
C049S498100, C049S475100
Reexamination Certificate
active
06405489
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a structure for mounting a door weather strip in the periphery of a door of an automobile.
The present application is based on Japanese Patent Application No. Hei. 11-291170, which is incorporated herein by reference.
2. Description of the Related Art
Conventionally, in the periphery of a door of an automobile, there is provided a door weather strip to seal a clearance between the door and a door opening formed in the automobile body. For example, as shown in
FIGS. 6 and 7
, this door weather strip
41
includes: a mounting base section
42
; and a hollow seal section
43
, wherein the door weather strip
41
is made of elastic material such as rubber, thermoplastic elastomer, foamed these materials, the cross-section of which is formed into the substantially same shape with respect to the entire periphery of the door.
Concerning the structure for mounting this door weather strip
41
on the door
44
, the following structure (the first conventional structure) is well known. On the mounting face
42
a
at the bottom of the mounting base section
42
, there are provided a plurality of clips
45
at predetermined intervals, and the mounting face
42
a
of the mounting base section
42
is mounted on an outer peripheral surface of the door
44
by these clips
45
. Also, the following structure (the second conventional structure) is well known. There is provided a double-sided adhesive tape
46
such as pressure sensitive adhesive double coated tape on the mounting face
42
a
of the mounting base section
42
with respect to the entire length of the door weather strip, and the mounting face
42
a
is bonded to an outer peripheral surface of the door
44
by this double-sided adhesive tape
46
.
However, the above first conventional structure is disadvantageous as follows. In each portion between the clips
45
, the mounting face
42
a
can not come into close contact with the outer peripheral surface of the door
44
. Therefore, there is a possibility that water leaks in the automobile cabin through this portion between the clips
45
. Also, the above second conventional structure is disadvantageous as follows. Before the double-sided adhesive tape
46
is attached onto the mounting face
42
a,
the primer must have been coated on the mounting face
42
a.
Therefore, it takes time and labor for providing the double-sided adhesive tape
46
to the entire length of the door weather strip. Accordingly, the manufacturing cost is raised.
When the double-sided adhesive tape is applied to the entire length of the door weather strip, the manufacturing cost of the door weather strip is raised because the cost of the double-sided adhesive coated tape is relatively expensive.
Concerning the structure for mounting a door weather strip in which the double-sided coated tape is used, the following structure (the third conventional structure), which is disclosed in Unexamined Japanese Utility Model Publication 2-38218, is also known. The above third conventional structure is composed as follows. In the mounting base section of the door weather strip, there are provided two mounting faces which make a substantially right angle with each other. And the double-sided adhesive coated tape is attached to the mounting face on the side in which a load given to the mounting face in the case of opening and closing the door becomes a compressive load. Then, the mounting face is bonded to the periphery of the door panel by this double-sided adhesive tape.
That is, on the hinge side of the door, the double-sided adhesive tape is attached onto the first mounting face of the weather strip, so that the door weather strip is bonded to the outer peripheral surface of the door. At the bottom side of the door and the open side of the door opposite to the hinge side, another double-sided adhesive tape is attached onto the second mounting face of the door weather strip, so that the second mounting face is bonded to the extending surface which extends in a direction of substantially perpendicular to the outer peripheral surface of the door. At the corner section between the hinge side section and the bottom side section of the weather strip, the above two double-sided adhesive tapes are respectively extended to the first and second mounting faces and made to adhere onto both faces of the outer peripheral surface and the extending surface of the door.
However, in the above third conventional structure, the two adhesive tapes must be respectively made to adhere onto the first and second mounting faces. Therefore, it takes time and labor for this attaching work of the two adhesive tapes, which raises the manufacturing cost. Further, at the corner section of the door weather strip, it would be difficult to obtain the continuous sealing since the adhered positions of two ends of respective two adhesive tapes are located at different positions so that a gap occurs between the two ends. Accordingly, it is impossible to ensure a sufficiently high sealing property at the corner section.
In order to solve the above various problems, the following fourth conventional structure , which are shown in
FIGS. 6A
,
7
A and
7
B, is proposed. In this fourth conventional structure, the door weather strip
41
is composed in such a manner that the upper extrusion molding section
47
A and the lower extrusion molding section
47
B are connected with each other by two mold molding sections
48
. The mounting faces
42
a
of the upper extrusion molding section
47
A and both the mold molding section
48
are fixed to the door
44
by the clips
45
and the double-sided adhesive tape
46
, and the mounting face
42
a
of the lower extrusion molding section
47
B is fixed to the door
44
by the clips
45
.
Further, the following mounting structure (the fifth structure), which is shown in
FIGS. 6B and 7A
to
7
C, is proposed. In this door weather strip
41
, the upper extrusion molding section
47
A, lower extrusion molding section
47
B and side extrusion molding section
47
C are connected with each other by three mold molding sections
48
. The mounting faces
42
a
of the upper extrusion molding section
47
A, side extrusion molding section
47
C and mold molding sections
48
are fixed to the door
44
by the clips
45
and the double-sided adhesive tape
46
, and at the same time, the mounting face
42
a
of the lower extrusion molding section
47
B is fixed to the door
44
by the clips
45
. In this connection, the mold molding section
48
for connecting the upper extrusion molding section
47
A with the lower extrusion molding section
47
B, and the mold molding section
48
for connecting the side extrusion molding section
47
C with the lower extrusion molding section
47
B are respectively arranged at the belt line position of the door.
However, in the above fourth conventional structure, the following problems may be encountered. A portion in the periphery of the rear upper portion of the lower extrusion molding section
47
B does not closely come into contact. Therefore, when rain water flows to the rear portion along the upper edge of the upper extrusion molding section
47
A as shown by the arrow in
FIG. 6A
, it turns round the molding section
48
of the corner section and leaks in the automobile cabin through the end of the adhesive tape.
Further, in the above fifth conventional structure, the following problems may be encountered. The door weather strip
41
is composed of three extrusion molding sections
47
A,
47
B,
47
C and three mold molding sections
48
. Therefore, the number of parts is increased, and further the manufacturing work becomes complicated. Accordingly, the manufacturing cost is raised.
SUMMARY OF THE INVENTION
The present invention has been accomplished to solve the above problems of the background art. It is an object of the present invention to provide a structure for mounting a door weather strip characterized in that: the mounting work can be made easy and the manufacturing cost can be reduced; and no bre
Pillsbury & Winthrop LLP
Strimbu Gregory J.
Toyoda Gosei Co,., Ltd.
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