Movable or removable closures – With means mounting closure for reciprocation – Diverse or springy material guide or slide
Reexamination Certificate
2000-11-30
2002-12-17
Redman, Jerry (Department: 3634)
Movable or removable closures
With means mounting closure for reciprocation
Diverse or springy material guide or slide
C049S495100
Reexamination Certificate
active
06493992
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a glass run and its attachment structure for attaching the glass run to a window frame which is formed on a vehicle door or the like.
The present application is based on Japanese Patent Applications No. Hei. 11-339172, 2000-19293 and 2000-41625, which are incorporated herein by reference.
2. Description of the Related Art
As shown in
FIG. 21
, in a front door of a vehicle, a window frame
513
is provided in an upper portion of a door body
512
.
The front door
511
is provided with a window opening portion
514
which is opened and closed by a window glass
516
. Along the opposite side portions and the upper side portion of the window opening portion
514
, for example, there is formed the window frame
513
having a substantially U-shape in section, in which an inner side wall, an outer side wall and a bottom wall are formed to be bent. Along this window frame
513
, a channel-like glass run
515
is disposed to surround the window glass
516
. The glass run
515
is fitted into a groove portion which is formed at the inner circumference of the window frame
513
. Thus, when the window glass
516
is moved up and down, the window glass
516
is guided by car-interior-side and car-exterior-side glass seal portions of the glass run
515
while the outside and inside of the cabin is sealed from each other.
The glass run
515
includes a body portion which is constituted by a bottom wall portion, an outside wall portion located on the car exterior side of the bottom wall portion, and an inside wall portion located on the car interior side of the bottom wall portion. The inside and outside wall portions are formed so that the inside wall portion is substantially as high as or a little higher than the outside wall portion.
Recently, a glass run in which such an inside wall portion is set to be two to four times as high as such an outside wall portion has been used to make the door attractive (Japanese Patent Publication No. Hei. 8-295134). A structure for attaching such a glass run to a window frame will be described with reference to FIG.
22
.
FIG. 22
shows a cross section of an upper horizontal frame portion of the window frame
513
, which is taken along line A—A in
FIG. 21. A
channel-like body portion
515
a
of a glass run
515
is fitted into a groove portion
525
which is provided in the window frame
513
. The body portion
515
a
is constituted by a bottom wall portion
515
b,
an outside wall portion
515
c
and an inside wall portion
515
d.
Glass seal portions
515
h
and
515
i
are formed on the outside and inside wall portions
515
c
and
515
d,
respectively, so that the window glass
516
is slidably guided. A lock portion
515
j
which is to be locked in an outer edge
526
provided on the car-exterior-side wall of the window frame
513
at the groove portion
525
, and a holding lip
515
k
which is to be locked in an inner surface of a car-interior-side wall of the window frame
513
at the groove portion
525
, are integrally formed pm the body potion
515
a.
An extended inside wall portion
515
g
is formed integrally with the inside wall portion
515
d
of the glass run
515
. On the other hand, a protrusion
515
o
is attached on a receiving portion
530
of the window frame
513
with positioning and regulating, and a shield lip
515
q
is made to abut against a terminal portion
31
of a car-interior-member such as a garnish
24
. Height H
2
of the extended inside wall portion
515
g
from the bottom wall portion
515
b
is approximately three times as large as height H
1
of the outside wall portion
515
c.
A conventional glass run, which has not such an extended inside wall portion
515
g,
and has an inside wall portion being substantially as high as an outside wall portion, is adopted such an attachment method that the body portion of the glass run is moved up from underneath in a straight line so as to be fitted into the groove portion
525
of the window frame
513
. In this method where fitting is attained by straight-line movement, however, there is a problem that the work of fitting is not performed smoothly at the glass run structure in
FIG. 22
because it is very difficult to give the same pressure at an end of the outside wall portion
515
c
and an end of the inside wall portion
515
d
, respectively, and the outside wall portion
515
c
and the inside wall portion
515
d
are pressed toward the glass seal portions
515
h
and
515
i
respectively so as to come close to each other.
As a result, there arises a problem that the glass seal portions
515
h
and
515
i
interfere with each other so that the operation of fitting becomes very troublesome.
Further, as such a conventional glass run
515
in
FIG. 22
, for example, there is another problem as follows.
When the door
511
is opened or closed hard in the state where the window glass
516
is opened slightly, the upper end portion of the window glass
516
may be shaken by inertia force. Then, if the upper end portion of the window glass
516
exists in a position which is in the region of the glass run
515
and out of the glass seal portions
515
h,
515
i,
the upper end portion of the window glass
516
collides with the extended inside wall portion
515
g
partially. Here, the glass run
515
is, for example, formed of solid rubber of ethylene-propylene-diene ternary copolymer (EPDM). Then, because the extended inside wall portion
515
g
of the glass run
515
has predetermined rigidity, the extended inside wall portion
515
g
cannot absorb the shock caused by the collision of the window glass
516
entirely. Thus, extended inside wall portion
515
g
further collides with the aforementioned inner side wall of the window frame
513
which is made of metal. There is a problem that an unpleasant collision sound is generated at this time. This problem is apt to be generated near the front end of the upper portion of the window frame
513
in the front door or near the rear end of the upper portion of the window frame
513
in the rear door because the shaking of the window glass
516
is great there.
In addition, the car-interior-side wall of the window frame
513
has the receiving portion
530
which projects in the direction of the car interior side. And the garnish
24
is covering the cat-interior-side wall of the window frame
513
and the protrusion
515
o
of the glass run
515
.
The aforementioned garnish
24
is subjected to termination treatment in which the terminal portion
31
is brought into close contact with the protrusion
515
o
of the glass run
515
fitted to the groove portion
525
of the window frame
513
.
As such a termination treatment structure, as shown in
FIG. 22
, there is generally adopted a structure in which the receiving portion
530
for bearing the forward end of the inside wall portion
515
d
is formed at the car-interior-side wall opening end of the groove portion
525
of the window frame
513
, while a recess groove
540
is formed at the forward end of the inside wall portion
515
d
of the glass run
515
so as to be located between the shield lip
515
d
and the car-interior-side wall opening end of the groove portion
525
, so that and end of the terminal portion
31
of the garnish
24
is fitted into the recess groove
540
.
However, in the aforementioned terminal treatment structure, there is a possibility that when the end of the terminal portion
31
of the garnish
24
is lifted up to be fitted into the recess groove
540
, the shield lip
515
q
of the glass run
515
may be fitted in between end of the terminal potion
31
of the garnish
24
and the car-interior-side wall opening end of the groove portion
525
so that desired fitting cannot be done. Accordingly, the termination treatment is difficult to be done, and not necessary to consume time.
SUMMARY OF THE INVENTION
It is a first object of the present invention to provide a glass run and a glass run attachment structure in which the work of attaching a glass run to a window
Pillsbury & Winthrop LLP
Redman Jerry
Toyoda Gosei Co,., Ltd.
LandOfFree
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