Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2001-11-14
2004-06-08
Aftergut, Jeff H. (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S244110, C156S538000, C156S500000, C264S176100
Reexamination Certificate
active
06746561
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a method for preparing a panel (windowpane) with a resinous frame, which is suited for a window opening of a vehicle or a building.
BACKGROUND ART
Windowpanes, which are fitted into the window openings of vehicles or buildings, have usually had the following structure. The structure is one wherein a panel (windowpane, hereinbelow referred to as the pane), such as a glass sheet and a plastic sheet, has a peripheral portion fitted with a resinous frame, such as a molded member or a gasket of synthetic resin, to improve ornamentality or sealing properties. The pane that has the peripheral portion fitted with a resinous frame is called a windowpane with a resinous frame.
FIG. 10
is a perspective view showing a conventional apparatus employed in a method for preparing a windowpane with a resinous frame,
FIG. 11
is a perspective view showing how a shaped product is introduced into the pressing member shown in
FIG. 10
, and
FIG. 12
is a sectional view as seen from the direction indicated by arrows of XII—XII of FIG.
11
. In these Figures, reference numeral
1
designates an extruder, and reference numeral
2
designates a shaping die, which is attached to the leading edge of the extruder
1
, and which extrudes a resinous material for a frame in a certain cross-sectional shape to form a shaped product
3
as a frame. Reference numeral
4
designates the pressing member, which is provided at a position apart from the shaping die
2
by a certain distance, and reference numeral
5
designates a pair of upper and lower slit plates, which are provided on an insertion side of the pressing member
4
for the shaped product
3
. The slit plates
5
are ones that serve to expand the opening of a biting portion
3
a
of the shaped product
3
so that a pane
7
sucked and supported by an operating robot
6
can easily have a peripheral portion bit into the biting portion
3
a.
The pressing member
4
includes a hollow portion
4
a
for passing the shaped product
3
therethrough and a pane insertion slit
4
b
for receiving the peripheral portion of the pane
7
. The sectional shape of the hollow portion
4
a
substantially conforms to the sectional shape of a frame
8
, which is provided by fitting the shaped product
3
on the peripheral portion of the pane
7
. The pressing member
4
is supported by a spring
9
a
coupled to an upper portion thereof and a spring
9
b
coupled to a lower portion thereof. On a side of the pressing member
4
close to the pane insertion slit
4
b
, an upper horizontal roller
10
and a lower horizontal roller
11
are rotatably provided at upper and lower positions so as to sandwich the pane insertion slit
4
b
therebetween. The lowermost position of a rotating surface
10
a
of the upper horizontal roller
10
as a reference surface is located so as to project slightly downwardly from an upper end surface of the pane insertion slit
4
b.
The preparation of a windowpane with a resinous frame by this apparatus is carried out in the following procedure. The shaping die
2
, which is attached to the leading edge of the extruder
1
, extrudes a resinous material for a frame in a certain cross-sectional shape to form the shaped product
3
. The shaped product
3
travels toward the pressing member
4
by being pulled by a pulling device (not shown). The shaped product
3
is introduced into the hollow portion
4
a
of the pressing member
4
and passed through the hollow portion
4
a
, having the biting portion
3
a
expanded by the slit plates
5
. At the time, the pane
7
is waiting at a certain location, being supported by the operating robot
6
at rest.
Then, the operating robot
6
, which has been instructed on a travel path, operates, starting the movement of the pane
7
. The pane
7
is introduced into the pane insertion slit
4
b
of the pressing member
4
through between the upper horizontal roller
10
and the lower horizontal roller
11
, being guided by the upper horizontal roller
10
and the lower horizontal roller
11
. The pane
7
is moved so that the pressing member
4
relatively moves along the peripheral portion of the pane
7
. While the pane
7
is guided by the upper horizontal roller
10
and the lower horizontal roller
11
, the pane is introduced and bitten through the pane insertion slit
4
b
into the biting portion
3
a
of the shaped product
3
, which is passing through the hollow portion
4
a
. Thus, the shaped product
3
is forcibly fitted to the peripheral portion of the pane
7
by the pressing member
4
, being unified with the pane
7
as the frame
8
.
In the method for preparing a windowpane with a resinous frame as stated earlier, the pressing member
4
is supported by the springs
9
a
,
9
b
. If the peripheral portion of the pane
7
is not located at a certain position with respect to the upper horizontal roller
10
and the lower horizontal roller
11
when the peripheral portion of the pane
7
is passing between the upper horizontal roller
10
and the lower horizontal roller
11
for insertion through the pane insertion slit
4
b
into the hollow portion
4
a
, the peripheral portion of the pane
7
abuts against the upper horizontal roller
10
and the lower horizontal roller
11
. As a result, the pressing member
4
is pushed up by the peripheral portion of the pane
7
through the upper horizontal roller
10
or is pushed down by the peripheral portion through the lower horizontal roller
11
. The position of the pressing member
4
vertically shifts against the urging forces of the springs
9
a
,
9
b
, following the peripheral portion of the pane
7
. Thus, the peripheral portion of the pane
7
can pass at a constant position without taking a wavy state with respect to the hollow portion
4
a
. Size deviations of the pane
7
and variations in the curved shape of the pane in a thickness direction thereof can be absorbed by deformation of the springs
9
a
,
9
b
, preventing the frame
8
unified to the pane
7
from having poor appearance.
In the method for preparing a windowpane with a resinous frame as stated earlier, the pressing member
4
, the upper horizontal roller
10
and the lower horizontal roller
11
can move vertically as a unit. The upper horizontal roller
10
or the lower horizontal roller
11
can not move vertically independently of the pressing member
4
. Under the circumstances, it is difficult to follow the pane
7
in sufficiently rapid fashion since the upper horizontal roller
10
, the lower horizontal roller
11
and the pressing member
4
move vertically as the unit. If it is difficult for the pressing member
4
to make a follow-up motion in sufficiently rapid fashion during vertical movement, the shaped product
3
, which is passing through the hollow portion
4
a
, is prevented from being forcibly fitted to the peripheral portion of the pane
7
at a certain equal pressure since the hollow portion
4
a
is also bad at a follow-up motion. As a result, variations in the degree of adhesion of the shaped product
3
to the pane
7
cause, preventing the frame
8
unified to the pane
7
from having good appearance.
It is an object of the present invention to provide a method for preparing a windowpane with a resinous frame, offering the following advantages:
A portion, through which a shaped product is passing, can make a rapid follow-up motion irrespectively of size deviations or variations in the curved shape of a pane.
A shaped product can be unified to a peripheral portion of a pane at a certain equal pressure without creating variations in the adhesion force.
A frame, which is unified to a pane, can have good appearance.
DISCLOSURE OF THE INVENTION
According to a first aspect of the present invention, there is provided a method for preparing a windowpane with a frame, which comprises extruding a resinous material for a frame in a certain shape from a shaping die to form a shaped product for the frame, introducing a windowpane into a pressing member as well as forwarding the shaped product to the pressing member,
Shibuya Yasuhiro
Takeda Hisashi
Aftergut Jeff H.
Asahi Glass Company Limited
Rossi Jessica
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