Textiles: fluid treating apparatus – Machines – Tumbling
Reexamination Certificate
2002-01-23
2003-09-23
Gulakowski, Randy (Department: 1746)
Textiles: fluid treating apparatus
Machines
Tumbling
C068S210000, C034S236000, C034S596000, C034S601000, C034S602000, C034S603000, C312S228000
Reexamination Certificate
active
06622531
ABSTRACT:
RELATED APPLICATIONS
This application claims the benefit of the Chinese applications 01114922.1 filed Apr. 30, 2001 and 01127321.6 filed Aug. 11, 2001.
1. Technical Field
The invention relates to a drum washing machine, and more particularly to a drum washing machine with inner spin basket that could be drawn out of the housing.
2. Background Art
A drum washing machine is a new type of washing machine, which mainly consists of housing, an outer tub, an inner spin basket, draining devices and driving devices for the inner spin basket. The position of the laundry in the inner spin basket is adjusted by the forward and backward driving forces caused by driving devices under the control of the orders from the keyboard, thus improving the efficiency of the washing machine. But the drum washing machine in prior art just provides a window in one side of the housing for putting and taking the laundry. It is inconvenient for the user to bend his knees to put the laundry into the inner spin basket. As a result, a drum washing machine is expected whose the inner spin basket can be drawn out of the housing to put and take the laundry. In order to achieve the above object, the problem on how to draw the inner spin basket out of housing and ensure the seal between the inner spin basket and the outer tub must be solved.
DISCLOSURE OF THE INVENTION
An object of the present invention is to provide a drum washing machine with draw-out inner spin basket that could be drawn out of the housing to put and take the laundry.
To achieve the aforementioned object, the present invention provides a drum washing machine with draw-out inner spin basket, which comprises housing, an outer tub, an inner spin basket, draining devices and driving devices for the inner spin basket, wherein:
A. The inner spin basket
3
is spigotted movably on the driving shaft
4
by the driving hole in the back plate of the inner spin basket.
B. An axle
7
of the spin basket is provided at the front plate of the inner spin basket
3
. An end of the axle
7
is inserted in the bearing
9
.
C. A cover
8
is disposed in front of the front plate of the inner spin basket
3
. Said bearing
9
is positioned in the bearing box
21
inside the cover
8
. The inner spin basket
3
is rotatably attached to the cover
8
through the axle
7
of spin basket and the bearing
9
.
D. A on-off door
22
of the inner spin basket is formed of the opening on the side wall of the inner spin basket
3
.
E. A seal ring
11
is mounted around the front circumference of the outer tub
2
. The inner circumference of the cover
8
forms a sealing surface corresponding to the seal ring
11
, which is pressed against the sealing ring
11
to form sealing therebetween so that the cover
8
is attached to the front circumference end of the outer tub
2
.
F. Slide connection
10
is disposed between the inner wall of the housing
1
or the back plate of the outer tub
2
and the inner spin basket
3
so that the inner spin basket
3
can be drawn into or out of the housing
1
.
According to a Drum washing machine of the present invention, the inner spin basket
3
can be drawn into or out of the housing
1
by means of the slide connection
10
. The door
22
on the side wall of the inner spin basket
3
can be opened to put and take the laundry instead of the window in prior art.
Additionally, in the present invention, the cover
8
is disposed such that it is attached to the front circumference end of outer tub
2
to form sealing therebetween by means of the seal ring
11
.
The driving shaft
4
is driven by a driving device not shown in the figures so that the inner spin basket
3
is rotated around the axis of the axle
7
of the spin basket and driving shaft
4
inside the outer tub
2
.
In the present invention, the driving shaft
4
is supported on the bearing mounted in the fixing mount
13
, which is fixed on the outside of the back plate of the outer tub
2
. The driving shaft
4
is constituted of an axle
14
, a flange
15
and studs
16
circularly distributed on the end face of the flange
15
.
According to the present invention, the driving shaft
4
is constituted of the axle
14
, the flange
15
and studs
16
. The axle
14
of the driving shaft
4
is supported on the bearing mounted in the fixing mount
13
so that the driving shaft
4
can be rotated freely with respect to the outer tub
2
.
In the present invention, the driving holes at the back plate of the inner spin basket
3
are designed to be corresponding to the studs
16
. Each of the studs
16
is inserted into the corresponding driving hole so that the inner spin basket
3
can be spigotted movably onto the driving shaft
4
.
In the present invention, Each of the studs
16
is inserted into the corresponding driving hole at the back plate of the inner spin basket
3
so that the inner spin basket
3
can be rotated synchronistically with the driving shaft
4
.
Additionally, the number of the studs
16
and the driving holes which are distributed uniformly along the circumference of flange
15
is preferably more than 2, such as 3, 4, 5 or 6. The number of studs
16
need not be equal to the number of the driving holes. For example, the number of the driving holes can be designed as 4 or 6, and the studs
16
may be designed correspondingly as 2 or 3. It is easy to connect the inner spin basket
3
with the driving shaft
4
by inserting the stud
16
into the driving hole.
In the present invention, the slide connection
10
is formed of at least two guide supports
5
and guide
6
which is mounted in the guide supports
5
. The guide supports
5
are respectively mounted on the side wall of the housing
1
which is opposite to the side wall of the inner spin basket
3
. The front end of the guide
6
is connected with the connecting bar
10
fastened on the cover
8
. The guide
6
slides in the guide support
5
so that the inner spin basket
3
can be drawn out of and put in the housing
1
.
In the present invention, the slide connection
10
is constituted of the guide supports
5
and the guides
6
which slide along the guide supports
5
so that the inner spin basket
3
can be drawn into or out of the housing
1
. The two guide supports
5
can be respectively disposed in the side wall of the housing
1
along the rotation axis of spin basket
3
in parallel to each other. The guides
6
are disposed correspondingly and respectively on the side wall of the inner spin basket
3
and fastened at the opposite ends of the connecting bar
20
on the cover
8
.
Additionally, if balls
17
are provided in the guide supports
5
, the guides
6
slide in the guide supports
5
through the balls
17
so that the inner spin basket
3
can be drawn out or pushed in more easily.
In the present invention, the slide connection
10
is constituted of at least one guide bar
23
and outer conduit
24
which is disposed to slide on the outside surface of the guide bar
23
. One end of the guide bar
23
is fixed on the outer circumference of flange
15
on the driving shaft
4
which is connected with the outer tub
2
. The other end of the guide bar
23
is inserted into the inner spin basket
3
. One end of the outer conduit
24
is spigotted and slide on the end of the guide bar
23
which is inserted into the inner spin basket
3
. The other end of the outer conduit
24
is fixed on the corresponding outer circumference of the flange
15
in the front of the inner spin basket
3
. By the sliding of the outer conduit
24
along the guide bar
23
, the inner spin basket
3
can be drawn out of or pushed into the housing
1
.
In another embodiment of the invention, the slide connection
10
, which is similar to the antenna, is constituted of the guide bar
23
and the outer conduit
24
. Drawing the outer conduit
24
can draw the spin basket
3
out of the housing
1
. The slide connection
10
is compact since it is positioned inside the inner spin basket
3
and on the flange
15
of the driving shaft
4
(independently of the housing
1
).
Additionally, at least one inner condu
Ren Fuyu
Sun Da li
Gulakowski Randy
Haier Group Corporation
Knobbe Martens Olson & Bear LLP
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