Textiles: fluid treating apparatus – Machines – Combined
Reexamination Certificate
2001-04-19
2003-07-01
Coe, Philip R. (Department: 1746)
Textiles: fluid treating apparatus
Machines
Combined
C068S0030SS
Reexamination Certificate
active
06584814
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to a washing machine with a tilted washing tub, and more particularly to a washing machine with a tilted washing tub, which is capable of allowing its casing to be perpendicular in the same manner as that for a washing machine with a perpendicular washing tub, despite the presence of the tilted washing tub.
2. Description of the Prior Art
In general, a washing machine with a tilted washing tub allows the front upper portion of its washing tub to be tilted forward, thereby allowing a user to conveniently put laundry into and take laundry out of its washing tub.
FIG. 1
is a cross section showing a prior art washing machine with a tilted washing tub.
The prior art washing machine with a tilted washing tub includes a casing
104
, which is provided with a folding door
102
and constitutes the outer periphery of the washing machine. A washing tub
105
is positioned in the casing
104
to be tilted forward at a predetermined angle. The washing tub
105
is comprised of an outer tub
106
situated in the casing
104
to be tilted at a predetermined angle for containing washing water, and an inner tub
108
situated in the outer tub
106
for washing and spin-drying laundry. A drive motor
110
is situated under the outer tub
106
to rotate the outer tub
106
. A plurality of suspension rods
112
serve to support the outer tub
106
and damp vibrations.
The outer and inner tubs
106
and
108
are situated to be tilted forward at a predetermined angle. Accordingly, an front upper protrusion
116
is formed on the upper sub-portion of the front portion of the casing
104
to correspond to the shape of the front upper portion of the tilted washing tub
105
, and a rear lower protrusion
118
is formed on the lower sub-portion of the rear portion of the casing
104
to correspond to the shape of the rear lower portion of the tilted washing tub
105
.
However, in the prior art washing machine, it is inconvenient to put laundry into and take laundry out of the inner tub
108
because the front upper protrusion
116
of the casing
104
is projected forward and the inner tub
108
is spaced apart from a user by a distance to which the front upper protrusion
116
is projected. Additionally, the front portion and two side portions should be manufactured separately and assembled together so as to form the front upper protrusion
116
on the front portion of the casing
104
. Furthermore, since the rear portion of the casing
104
on which the rear lower protrusion
118
is formed should be manufactured separately and assembled with the side portions together, the manufacture and assembly of the casing
104
is complicated.
In general, four suspension rods
112
are connected to the four corners of the casing
104
, respectively. The casing
104
is tilted forward at a predetermined angle, so it is difficult to form rod supports in order to hook the suspension rods
112
.
Furthermore, even when washing capacities are the same, different casings should be manufactured for the washing machine with a tilted washing tub and the washing machine with a perpendicular washing tub.
SUMMARY OF THE INVENTION
Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a washing machine with a tilted washing tub, which is capable of allowing laundry to be easily put into and taken out of the tilted washing tub by the removal of a front upper protrusion, which is capable of reducing the manufacturing costs of the washing machine by allowing one type of casing to be commonly used for the washing machine with the tilted washing tub and a washing machine with a perpendicular washing tub, and which allows the parts of the washing machine to be easily attached to the washing machine.
Another object of the present invention is to provide a washing machine with a tilted washing tub, which allows its rear cover, used for wiring and assembling processes, to be fitted to the rear portion of its casing in a sliding fashion, thereby facilitating the assembly of the rear cover to the casing.
In order to accomplish the above object, the present invention provides a washing machine with a tilted washing tub, comprising: a casing on the rear portion of which an opening is formed, the opening being covered with a rear cover provided with an outward protrusion; a washing tub consisting of outer and inner tubs, the outer tub being positioned in the casing to be tilted forward at a predetermined angle for containing washing water, the inner tub being positioned in the outer tub for washing and spin-drying laundry; and drive means for rotating the outer tub.
REFERENCES:
patent: 2583823 (1952-01-01), Dunham
patent: 4526020 (1985-07-01), Fey et al.
patent: 5090220 (1992-02-01), Fukuzawa et al.
patent: 5661914 (1997-09-01), Millet
Lee Bong Sang
Park Hye Yong
Ryu Chang Won
Son Ji Chang
Coe Philip R.
LG Electronics Inc.
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