EP1433887A1 - Drum-type washing machine comprising a plurality of vanes - Google Patents
Drum-type washing machine comprising a plurality of vanes Download PDFInfo
- Publication number
- EP1433887A1 EP1433887A1 EP03016731A EP03016731A EP1433887A1 EP 1433887 A1 EP1433887 A1 EP 1433887A1 EP 03016731 A EP03016731 A EP 03016731A EP 03016731 A EP03016731 A EP 03016731A EP 1433887 A1 EP1433887 A1 EP 1433887A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- vane
- side surfaces
- inclined side
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
- D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
- D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
- D06F37/065—Ribs, lifters, or rubbing means forming part of the receptacle ribs or lifters having means for circulating the washing liquid
Definitions
- the present invention relates to a drum-type washing machine provided with a plurality of vanes installed at the inner wall of a drum for lifting up laundry and allowing the lifted laundry to drop so as to wash the laundry, and more particularly to a drum-type washing machine provided with a plurality vanes, each having an improved shape so as to increase the size of a contact surface with the laundry and wash water and to laterally move the laundry by the rotation of a drum, thereby improving washing and rinsing performance.
- each of drum-type washing machines comprises a drum and a tub enclosing the drum, and washes laundry by means of friction between the laundry and the drum rotated by the driving force of a motor, under the condition that the laundry together with a detergent and wash water is introduced into the drum. Accordingly, the drum-type washing machines do not damage the laundry, prevent the laundry from getting tangled, and have the same effect as the conventional hand-washing case that the laundry is beaten and rubbed by hand.
- Fig. 1 is a longitudinal-sectional view of a conventional drum-type washing machine.
- Fig. 2 is a perspective view of a vane of the conventional drum-type washing machine.
- Fig. 3 is a cross-sectional view taken along a line a-a of Fig. 1.
- the conventional drum-type washing machine comprises a cabinet 2, a tub 4, a drum 6, a motor 8, a spider 10, a rotary shaft 12, and a plurality of vanes 20.
- the cabinet 2 includes an opening (not shown) formed through its front surface, and a door 2a attached to the front surface so as to open and close the opening.
- the tub 4 is horizontally installed within the cabinet 2 so as to contain wash water.
- the drum 6 is rotatably installed within the tub 4 so that the laundry is put into the drum 6, and then washed by friction between the laundry and the inner wall of the drum 6 due to the rotation of the drum 6.
- the motor 8 is installed at the rear of the tub 4, and generates a rotary force to rotate the drum 6.
- the spider 10 is interposed between the motor 8 and the drum 6, and fixed to the rear surface of the drum 6, thereby transmitting the rotary force of the motor 8 to the drum 6.
- the rotary shaft 12 is connected to the spider 10 and the motor 8.
- each of the tub 4 and the drum 6 has a cylindrical shape with an opening at its front surface so that the laundry is put into the tub 4 and the drum 6 via their openings.
- a plurality of dehydration holes are formed through the inner wall of the drum 6.
- the vanes 20 are installed at the inner wall of the drum 6 so as to protrude from the inner wall of the drum 6.
- each of the vanes 20 includes two side surfaces 22 and 24 which are inclined upward, and front and rear surfaces 26 and 28.
- the two inclined side surfaces 22 and 24 are interconnected at their top ends.
- the front and rear surfaces 26 and 28 are respectively attached to front and rear ends of the two inclined side surfaces 22 and 24.
- the interior of the vane 20 is hollow, and the vane 20 is attached at its bottom surface to the drum 6, and includes holes 20a formed through its top surface, thus allowing the wash water to be circulated therethrough.
- Each of the two inclined side surfaces 22 and 24 has a flat planar shape.
- the top surface of the vane 20 where the two inclined side surfaces 22 and 24 are interconnected is parallel with a central axis (C) of the rotary shaft 12 of the drum 6.
- the bottom surface of the vane 20, which is fixed to the inner wall of the drum 6, has a rectangular shape longitudinally parallel with the central axis (C) of the rotary shaft 12 of the drum 6.
- each of the two inclined side surfaces 22 and 24 of the vane 20 has a flat planar shape, the laundry caught on the vanes 20 easily slips down along the inclined side surfaces 22 and 24. Accordingly, in case of the conventional drum-type washing machine, it is difficult to lift up the laundry to more than a certain height, thus having a limit in improving washing and rinsing performance.
- vanes 20 are parallel with the central axis (C) of the rotary shaft 12 of the drum 6, the laundry moves along the inner circumference of the drum 6 only in a vertical direction. Therefore, in case that the laundry is carelessly and randomly introduced into the drum 6, the laundry is eccentrically distributed in the drum 6, thus generating high vibration and noise during the high-speed rotation of the drum 6.
- the present invention has been made in view of the above problems, and it is an object of the present invention to provide a drum-type washing machine provided with improved vanes to allow the laundry to be easily caught thereon and lifted up to more than a certain height and subsequently to drop by its own weight, thereby increasing the agitation of the laundry and increasing washing and rinsing performance of the washing machine.
- a drum-type washing machine comprising: a tub for containing wash water, being horizontally installed within a cabinet; a drum for accommodating the laundry, being rotatably installed within the tub; and a plurality of vanes protruding from an inner wall of the drum, each vane including two inclined side surfaces, wherein at least one of the two inclined side surfaces is concave so as to vertically lift up and subsequently drop the laundry by a rotation of the drum, and simultaneously to increase a size of its contact surface with the wash water and the laundry.
- a drum-type washing machine comprising: a tub for containing wash water, being horizontally installed within a cabinet; a drum for accommodating the laundry, being rotatably installed within the tub; and a plurality of vanes protruding from an inner wall of the drum, each vane including two inclined side surfaces, wherein a top surface of each of the vanes, where the two inclined side surfaces are interconnected, is formed in a straight line at a predetermined angle to a central axis of a rotary shaft of the drum so that the vanes guide the laundry and laterally move the laundry by the rotation of the drum.
- Fig. 4 is a longitudinal-sectional view of a drum-type washing machine in accordance with a first embodiment of the present invention.
- Fig. 5 is a perspective view of a vane of the drum-type washing machine in accordance with the first embodiment of the present invention.
- Figs. 6, 7 and 8 are cross-sectional views taken along lines A-A, B-B, and C-C of Fig. 5, respectively.
- the drum-type washing machine in accordance with the first embodiment of the present invention comprises a cabinet 52, a tub 54, a drum 56, a motor 58, a spider 60, a rotary shaft 62, and a plurality of vanes 70.
- the cabinet 52 includes an opening (not shown) formed through its front surface, and a door 52a attached to the front surface so as to open and close the opening.
- the tub 54 for containing wash water is horizontally installed within the cabinet 52 so that the outer wall of the tub 54 is parallel with the inner wall of the cabinet 52.
- the drum 56 is rotatably installed within the tub 54 so that the laundry is contained by the drum 56 and washed by friction between the laundry and the inner wall of the drum 56 by the rotation of the drum 56.
- the motor 58 is installed at the rear of the tub 54, and generates a rotary force to rotate the drum 56.
- the spider 60 is interposed between the motor 58 and the drum 56, and fixed to the rear surface of the drum 56, thereby transmitting the rotary force of the motor 58 to the drum 56.
- One end of the rotary shaft 62 is connected to the spider 60, and the other end of the rotary shaft 62 is connected to the motor 58.
- the vanes 70 which are spaced from each other by a designated interval, protrude from the inner wall of the drum 56. When the drum 56 rotates, the vanes 70 lift up the laundry located within the drum 56, and simultaneously guide the laundry in a lateral direction.
- the drum-type washing machine of the present invention further comprises water supply means 64 for supplying wash water into the tub 54 and the drum 56 in a wash mode, and drainage means 66 for draining the tub 54 and the drum 56 in a rinse or dehydration mode.
- each of the tub 54 and the drum 56 has a cylindrical shape with an opening for receiving the laundry therethrough.
- a plurality of dehydration holes 56a are formed through the inner wall of the drum 56.
- the vanes 70 are installed at the inner wall of the drum 56 so as to protrude from the inner wall of the drum 56.
- each of the vanes 70 includes two inclined side surfaces 72 and 74 which are inclined upward, and front and rear surfaces 76 and 78.
- the two inclined side surfaces 72 and 74 are interconnected at their top ends.
- the front and rear surfaces 76 and 78 are respectively attached to front and rear ends of the two inclined side surfaces 72 and 74.
- Each of the vanes 70 is opened at its bottom surface, and includes holes 70a formed through its top surface and spaced from each other by a designated distance, thus allowing the wash water to be circulated therethrough.
- Each of the two inclined side surfaces 72 and 74 is concave, thereby increasing the size of its contact surface with the wash water and the laundry, and preventing the laundry from easily slipping therefrom.
- the top surface of the vane 70 where the two inclined side surfaces 72 and 74 are interconnected, is formed in a straight line so as not to be parallel with the central axis (C) of the rotary shaft 62 of the drum 56, i.e., so as to be at a predetermined angle to the central axis (C).
- the bottom surface of the vane 70 which is fixed to the inner wall of the drum 56, has a rectangular shape so as to be parallel with the central axis (C) of the rotary shaft 62 of the drum 56.
- the top surface of the vane 70 is formed in a straight line so as not to be parallel with the central axis (C) of the rotary shaft 62 of the drum 56, while the bottom surface of the vane 70 has a rectangular shape so as to be parallel with the central axis (C) of the rotary shaft 62 of the drum 56. Therefore, angles ( ⁇ , ⁇ ) between the inner wall of the drum 56 and the inclined side surfaces 72 and 74 gradually vary according to regions of the vane 70, i.e., from the front end of the vane 70 to the rear end of the vane 70.
- the angle ( ⁇ ) between the inner wall of the drum 56 and the inclined side surface 72 linearly decreases from the front end to the rear end.
- the angle ( ⁇ ) between the inner wall of the drum 56 and the inclined side surface 74 linearly increases from the front end to the rear end.
- the angle ( ⁇ ) between the inner wall of the drum 56 and the inclined side surface 72 at the front end of the vane 70 is in the range of 80° to 90°
- the angle ( ⁇ ) between the inner wall of the drum 56 and the inclined side surface 74 at the front end of the vane 70 is in the range of 20° to 30°.
- the angle ( ⁇ ) between the inner wall of the drum 56 and the inclined side surface 72 at the rear end of the vane 70 is in the range of 20° to 30°
- the angle ( ⁇ ) between the inner wall of the drum 56 and the inclined side surface 74 at the rear end of the vane 70 is in the range of 80° to 90°.
- Fig. 9 is a longitudinal-sectional view of a drum-type washing machine in accordance with a second embodiment of the present invention.
- Fig. 10 is a perspective view of a vane of the drum-type washing machine in accordance with the second embodiment of the present invention.
- Fig. 11 is a cross-sectional view taken along a line D-D of Fig. 10.
- the drum-type washing machine of the second embodiment has a configuration similar to that of the drum-type washing machine of the first embodiment.
- the drum-type washing machine in accordance with the second embodiment of the present invention comprises a plurality of vanes 80.
- the vanes 80 which are spaced from each other by a designated interval, protrude from the inner wall of the drum 56. When the drum 56 rotates, the vanes 70 serve to lift up the laundry and simultaneously lift up the wash water.
- each of the vanes 80 includes two side surfaces 82 and 84 which are inclined upward, and front and rear surfaces 86 and 88.
- the two inclined side surfaces 82 and 84 are interconnected at their top ends.
- the front and rear surfaces 86 and 88 are respectively attached to front and rear ends of the two inclined side surfaces 82 and 84.
- Each of the vanes 80 is opened at its bottom surface, and includes holes 80a formed through its top surface and spaced from each other by a designated distance, thus allowing the wash water to be circulated therethrough.
- Each of the two inclined side surfaces 82 and 84 is concave, thereby containing wash water and lifting up the contained water when the drum 56 rotates.
- the top surface of the vane 80, where the two inclined side surfaces 82 and 84 are interconnected, is formed in a curved line.
- each of the vanes 80 has an S shape so as to contain wash water regardless of the direction of the rotation of the drum 56, i.e., whether the drum 56 rotates in the normal direction or in the opposite direction.
- the vane 80 Since the two inclined side surfaces 82 and 84 of the vane 80 are concave, when the drum wash is operated in a wash or rinse mode by the rotations of the drum 56 and the vanes 80 thereof, the laundry is easily caught on the inclined side surfaces 82 and 84, while the laundry does not easily slip from the inclined side surfaces 82 and 84. Accordingly, it is possible to lift the laundry to a higher position. Further, since the vane 80 has an S shape, the vane 80 contains the wash water as well as the laundry, thereby improving the washing and rinsing performance of the drum-type washing machine.
- the drum-type washing machine When the drum-type washing machine is operated, the required foam level is sensed, and then wash water is supplied to the tub 54 and the drum 56 to a designated level.
- the motor 58 is driven, and subsequently the drum 56 rotates in the normal or opposite direction, thereby performing a washing or rinsing mode.
- the vanes 70 installed at the inner wall of the drum 56 are revolved around the rotary shaft 62 by the rotation of the drum 56.
- the laundry laid on the bottom of the drum 56 is caught on the vanes 70.
- the laundry caught on the vanes 70 is lifted up to more than a certain height along the circumferential direction of the drum 56, and then drops to the bottom of the drum 56 by its own weight.
- the washing and rinsing of the laundry are performed by the mechanical force of such an operation of the vanes 70 and the uneven structure of the inner wall of the drum 56.
- the vanes 70 Since the two inclined side surfaces 72 and 74 of the vanes 70 are concave, the laundry is easily caught on the inclined side surfaces 72 and 74, while the laundry does not easily slip from the inclined side surfaces 72 and 74. Accordingly, the vanes 70 lift the laundry higher, thereby improving the washing and rinsing performance.
- the vanes 70 are positioned at a predetermined angle to the central axis (C) of the rotary shaft 62 of the drum 56.
- C central axis
- the vanes 70 guide the laundry caught thereon and laterally move the laundry along their tilted top surfaces toward the rear area of the drum 56.
- the vanes 70 guide the laundry caught thereon and laterally move the laundry along their tilted top surfaces toward the front area of the drum 56. Accordingly, the vanes 70 move the laundry in the lateral direction of the drum 56, thus improving the washing and rinsing performance.
- the motor 58 is driven, and subsequently the drum 56 is rotated at a low speed in the normal direction, thereby allowing the laundry caught on the vanes 70 to be guided along the top surfaces of the vanes 70 toward the rear area of the drum 56. Then, when the drum 56 is rotated at a high speed, water contained in the laundry is discharged to the tub 56 via the dehydration holes 56a of the drum 56 by the centrifugal force, thus performing a dehydration mode.
- the dehydration mode is performed under the condition that the laundry is guided by the vanes 70 toward the rear area of the drum 56 and located adjacent to the rotary shaft 62. Accordingly, it is possible to reduce an unbalanced distribution of the laundry within the drum 56 and to decrease vibration and noise generated in the dehydration mode at a high speed.
- the present invention provides a drum-type washing machine provided with a plurality of vanes, each including two inclined side surfaces, which are concave, installed at an inner wall of a drum so that the laundry is easily caught on the inclined side surfaces while the caught laundry does not easily slip from the inclined side surfaces, lifted up a certain height by the rotation of the drum, and subsequently drops by its own weight, thereby increasing the agitation of the laundry and size of the contact surfaces of the inclined side surfaces with the laundry and the wash water and improving the washing and rinsing performance of the drum-type washing machine.
- each vane where the two inclined side surfaces are interconnected, is positioned at a predetermined angle to a central axis of a rotary shaft of the drum, the laundry caught on the vane is guided along its top surface so as to move back and forth. Accordingly, it is possible to uniformly distribute the laundry within the drum, thereby improving the washing and rinsing performance of the drum-type washing machine. Further, it is possible to move the laundry to the rear area of the drum in a dehydration mode, thereby decreasing an unbalanced degree of the distribution of the laundry within the drum and reducing vibration and noise generated in the dehydration mode.
- each vane includes the two inclined side surfaces, which are concave, and simultaneously the top surface of the vane has an S shape. Accordingly, the inclined side surfaces lift up the wash water using their concave portions, thereby circulating the wash water and further improving the washing and rinsing performance of the drum-type washing machine.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
Disclosed is a drum-type washing machine provided with a
plurality of vanes (70,80), each including two inclined side surfaces (72,74;82,84),
which are concave, installed at an inner wall of a drum (56) so
that the laundry is easily caught on the inclined side
surfaces (72,74;82,84) while the caught laundry does not easily slip from
the inclined side surfaces, lifted up a certain height by the
rotation of the drum (56), and subsequently drops by its own
weight, thereby increasing the agitation of the laundry and
size of the contact surfaces of the inclined side surfaces (72,74;82,84)
with the laundry and the wash water and improving the washing
and rinsing performance of the drum-type washing machine.
Description
The present invention relates to a drum-type washing
machine provided with a plurality of vanes installed at the
inner wall of a drum for lifting up laundry and allowing the
lifted laundry to drop so as to wash the laundry, and more
particularly to a drum-type washing machine provided with a
plurality vanes, each having an improved shape so as to
increase the size of a contact surface with the laundry and
wash water and to laterally move the laundry by the rotation
of a drum, thereby improving washing and rinsing performance.
Generally, each of drum-type washing machines comprises a
drum and a tub enclosing the drum, and washes laundry by means
of friction between the laundry and the drum rotated by the
driving force of a motor, under the condition that the laundry
together with a detergent and wash water is introduced into the
drum. Accordingly, the drum-type washing machines do not damage
the laundry, prevent the laundry from getting tangled, and have
the same effect as the conventional hand-washing case that the
laundry is beaten and rubbed by hand.
Fig. 1 is a longitudinal-sectional view of a
conventional drum-type washing machine. Fig. 2 is a
perspective view of a vane of the conventional drum-type
washing machine. Fig. 3 is a cross-sectional view taken along
a line a-a of Fig. 1.
As shown in Fig. 1, the conventional drum-type washing
machine comprises a cabinet 2, a tub 4, a drum 6, a motor 8, a
spider 10, a rotary shaft 12, and a plurality of vanes 20.
The cabinet 2 includes an opening (not shown) formed through
its front surface, and a door 2a attached to the front surface
so as to open and close the opening. The tub 4 is
horizontally installed within the cabinet 2 so as to contain
wash water. The drum 6 is rotatably installed within the tub
4 so that the laundry is put into the drum 6, and then washed
by friction between the laundry and the inner wall of the drum
6 due to the rotation of the drum 6. The motor 8 is installed
at the rear of the tub 4, and generates a rotary force to
rotate the drum 6. The spider 10 is interposed between the
motor 8 and the drum 6, and fixed to the rear surface of the
drum 6, thereby transmitting the rotary force of the motor 8
to the drum 6. The rotary shaft 12 is connected to the spider
10 and the motor 8. The vanes 20, which are spaced from each
other by a designated interval, protrude from the inner wall
of the drum 6. When the drum 6 rotates, the vanes 20 lift up
the laundry introduced into the drum 6.
Here, each of the tub 4 and the drum 6 has a cylindrical
shape with an opening at its front surface so that the laundry
is put into the tub 4 and the drum 6 via their openings. A
plurality of dehydration holes are formed through the inner
wall of the drum 6. The vanes 20 are installed at the inner
wall of the drum 6 so as to protrude from the inner wall of
the drum 6.
As shown in Figs. 2 and 3, each of the vanes 20 includes
two side surfaces 22 and 24 which are inclined upward, and
front and rear surfaces 26 and 28. The two inclined side
surfaces 22 and 24 are interconnected at their top ends. The
front and rear surfaces 26 and 28 are respectively attached to
front and rear ends of the two inclined side surfaces 22 and
24. The interior of the vane 20 is hollow, and the vane 20 is
attached at its bottom surface to the drum 6, and includes
holes 20a formed through its top surface, thus allowing the
wash water to be circulated therethrough.
Each of the two inclined side surfaces 22 and 24 has a
flat planar shape. The top surface of the vane 20 where the two
inclined side surfaces 22 and 24 are interconnected is parallel
with a central axis (C) of the rotary shaft 12 of the drum 6.
The bottom surface of the vane 20, which is fixed to the inner
wall of the drum 6, has a rectangular shape longitudinally
parallel with the central axis (C) of the rotary shaft 12 of
the drum 6.
Therefore, when the drum 6 rotates, the laundry laid on
the bottom of the drum 6 is caught on the vanes 20 and lifted
up in the circumferential direction of the drum 6 to more than
a certain height. Then, the laundry drops to the bottom of the
drum 6 by its own weight. The laundry introduced within the
drum 6 is washed and rinsed by repetitions of such operations
of the vanes 20 of the drum 6 and the uneven structure of the
interior space of the drum 6.
Since each of the two inclined side surfaces 22 and 24 of
the vane 20 has a flat planar shape, the laundry caught on the
vanes 20 easily slips down along the inclined side surfaces 22
and 24. Accordingly, in case of the conventional drum-type
washing machine, it is difficult to lift up the laundry to more
than a certain height, thus having a limit in improving washing
and rinsing performance.
Further, since the vanes 20 are parallel with the central
axis (C) of the rotary shaft 12 of the drum 6, the laundry
moves along the inner circumference of the drum 6 only in a
vertical direction. Therefore, in case that the laundry is
carelessly and randomly introduced into the drum 6, the laundry
is eccentrically distributed in the drum 6, thus generating
high vibration and noise during the high-speed rotation of the
drum 6.
Therefore, the present invention has been made in view
of the above problems, and it is an object of the present
invention to provide a drum-type washing machine provided with
improved vanes to allow the laundry to be easily caught
thereon and lifted up to more than a certain height and
subsequently to drop by its own weight, thereby increasing the
agitation of the laundry and increasing washing and rinsing
performance of the washing machine.
In accordance with one aspect of the present invention,
the above and other objects can be accomplished by the
provision of a drum-type washing machine comprising: a tub for
containing wash water, being horizontally installed within a
cabinet; a drum for accommodating the laundry, being rotatably
installed within the tub; and a plurality of vanes protruding
from an inner wall of the drum, each vane including two
inclined side surfaces, wherein at least one of the two
inclined side surfaces is concave so as to vertically lift up
and subsequently drop the laundry by a rotation of the drum,
and simultaneously to increase a size of its contact surface
with the wash water and the laundry.
In accordance with another aspect of the present
invention, there is provided a drum-type washing machine
comprising: a tub for containing wash water, being
horizontally installed within a cabinet; a drum for
accommodating the laundry, being rotatably installed within
the tub; and a plurality of vanes protruding from an inner
wall of the drum, each vane including two inclined side
surfaces, wherein a top surface of each of the vanes, where
the two inclined side surfaces are interconnected, is formed
in a straight line at a predetermined angle to a central axis
of a rotary shaft of the drum so that the vanes guide the
laundry and laterally move the laundry by the rotation of the
drum.
The above and other objects, features and other
advantages of the present invention will be more clearly
understood from the following detailed description taken in
conjunction with the accompanying drawings, in which:
Now, preferred embodiments of the present invention will
be described in detail with reference to the annexed drawings.
Fig. 4 is a longitudinal-sectional view of a drum-type
washing machine in accordance with a first embodiment of the
present invention. Fig. 5 is a perspective view of a vane of
the drum-type washing machine in accordance with the first
embodiment of the present invention. Figs. 6, 7 and 8 are
cross-sectional views taken along lines A-A, B-B, and C-C of
Fig. 5, respectively.
As shown in Fig. 4, the drum-type washing machine in
accordance with the first embodiment of the present invention
comprises a cabinet 52, a tub 54, a drum 56, a motor 58, a
spider 60, a rotary shaft 62, and a plurality of vanes 70.
The cabinet 52 includes an opening (not shown) formed through
its front surface, and a door 52a attached to the front
surface so as to open and close the opening. The tub 54 for
containing wash water is horizontally installed within the
cabinet 52 so that the outer wall of the tub 54 is parallel
with the inner wall of the cabinet 52. The drum 56 is
rotatably installed within the tub 54 so that the laundry is
contained by the drum 56 and washed by friction between the
laundry and the inner wall of the drum 56 by the rotation of
the drum 56. The motor 58 is installed at the rear of the tub
54, and generates a rotary force to rotate the drum 56. The
spider 60 is interposed between the motor 58 and the drum 56,
and fixed to the rear surface of the drum 56, thereby
transmitting the rotary force of the motor 58 to the drum 56.
One end of the rotary shaft 62 is connected to the spider 60,
and the other end of the rotary shaft 62 is connected to the
motor 58. The vanes 70, which are spaced from each other by a
designated interval, protrude from the inner wall of the drum
56. When the drum 56 rotates, the vanes 70 lift up the
laundry located within the drum 56, and simultaneously guide
the laundry in a lateral direction.
The drum-type washing machine of the present invention
further comprises water supply means 64 for supplying wash
water into the tub 54 and the drum 56 in a wash mode, and
drainage means 66 for draining the tub 54 and the drum 56 in a
rinse or dehydration mode.
Here, each of the tub 54 and the drum 56 has a
cylindrical shape with an opening for receiving the laundry
therethrough. A plurality of dehydration holes 56a are formed
through the inner wall of the drum 56. The vanes 70 are
installed at the inner wall of the drum 56 so as to protrude
from the inner wall of the drum 56.
As shown in Fig. 5, each of the vanes 70 includes two
inclined side surfaces 72 and 74 which are inclined upward,
and front and rear surfaces 76 and 78. The two inclined side
surfaces 72 and 74 are interconnected at their top ends. The
front and rear surfaces 76 and 78 are respectively attached to
front and rear ends of the two inclined side surfaces 72 and
74. Each of the vanes 70 is opened at its bottom surface, and
includes holes 70a formed through its top surface and spaced
from each other by a designated distance, thus allowing the
wash water to be circulated therethrough.
Each of the two inclined side surfaces 72 and 74 is
concave, thereby increasing the size of its contact surface
with the wash water and the laundry, and preventing the laundry
from easily slipping therefrom. The top surface of the vane 70,
where the two inclined side surfaces 72 and 74 are
interconnected, is formed in a straight line so as not to be
parallel with the central axis (C) of the rotary shaft 62 of
the drum 56, i.e., so as to be at a predetermined angle to the
central axis (C). The bottom surface of the vane 70, which is
fixed to the inner wall of the drum 56, has a rectangular shape
so as to be parallel with the central axis (C) of the rotary
shaft 62 of the drum 56.
That is, the top surface of the vane 70 is formed in a
straight line so as not to be parallel with the central axis
(C) of the rotary shaft 62 of the drum 56, while the bottom
surface of the vane 70 has a rectangular shape so as to be
parallel with the central axis (C) of the rotary shaft 62 of
the drum 56. Therefore, angles (α, β) between the inner wall of
the drum 56 and the inclined side surfaces 72 and 74 gradually
vary according to regions of the vane 70, i.e., from the front
end of the vane 70 to the rear end of the vane 70.
More specifically, as shown in Figs. 6 to 8, the angle
(α) between the inner wall of the drum 56 and the inclined side
surface 72 linearly decreases from the front end to the rear
end. On the other hand, the angle (β) between the inner wall of
the drum 56 and the inclined side surface 74 linearly increases
from the front end to the rear end. Herein, the angle (α)
between the inner wall of the drum 56 and the inclined side
surface 72 at the front end of the vane 70 is in the range of
80° to 90°, the angle (β) between the inner wall of the drum 56
and the inclined side surface 74 at the front end of the vane
70 is in the range of 20° to 30°. The angle (α) between the
inner wall of the drum 56 and the inclined side surface 72 at
the rear end of the vane 70 is in the range of 20° to 30°, the
angle (β) between the inner wall of the drum 56 and the
inclined side surface 74 at the rear end of the vane 70 is in
the range of 80° to 90°.
Fig. 9 is a longitudinal-sectional view of a drum-type
washing machine in accordance with a second embodiment of the
present invention. Fig. 10 is a perspective view of a vane of
the drum-type washing machine in accordance with the second
embodiment of the present invention. Fig. 11 is a cross-sectional
view taken along a line D-D of Fig. 10.
As shown in Fig. 9, the drum-type washing machine of the
second embodiment has a configuration similar to that of the
drum-type washing machine of the first embodiment. The drum-type
washing machine in accordance with the second embodiment
of the present invention comprises a plurality of vanes 80.
The vanes 80, which are spaced from each other by a designated
interval, protrude from the inner wall of the drum 56. When
the drum 56 rotates, the vanes 70 serve to lift up the laundry
and simultaneously lift up the wash water.
As shown in Figs. 10 and 11, each of the vanes 80
includes two side surfaces 82 and 84 which are inclined
upward, and front and rear surfaces 86 and 88. The two
inclined side surfaces 82 and 84 are interconnected at their
top ends. The front and rear surfaces 86 and 88 are
respectively attached to front and rear ends of the two
inclined side surfaces 82 and 84. Each of the vanes 80 is
opened at its bottom surface, and includes holes 80a formed
through its top surface and spaced from each other by a
designated distance, thus allowing the wash water to be
circulated therethrough.
Each of the two inclined side surfaces 82 and 84 is
concave, thereby containing wash water and lifting up the
contained water when the drum 56 rotates. The top surface of
the vane 80, where the two inclined side surfaces 82 and 84 are
interconnected, is formed in a curved line.
Particularly, each of the vanes 80 has an S shape so as
to contain wash water regardless of the direction of the
rotation of the drum 56, i.e., whether the drum 56 rotates in
the normal direction or in the opposite direction.
Since the two inclined side surfaces 82 and 84 of the
vane 80 are concave, when the drum wash is operated in a wash
or rinse mode by the rotations of the drum 56 and the vanes 80
thereof, the laundry is easily caught on the inclined side
surfaces 82 and 84, while the laundry does not easily slip from
the inclined side surfaces 82 and 84. Accordingly, it is
possible to lift the laundry to a higher position. Further,
since the vane 80 has an S shape, the vane 80 contains the wash
water as well as the laundry, thereby improving the washing and
rinsing performance of the drum-type washing machine.
Now, the operation of the above-described drum-type
washing machine in accordance with the present invention is
described, as follows.
When the drum-type washing machine is operated, the
required foam level is sensed, and then wash water is supplied
to the tub 54 and the drum 56 to a designated level. The motor
58 is driven, and subsequently the drum 56 rotates in the
normal or opposite direction, thereby performing a washing or
rinsing mode.
The vanes 70 installed at the inner wall of the drum 56
are revolved around the rotary shaft 62 by the rotation of the
drum 56. The laundry laid on the bottom of the drum 56 is
caught on the vanes 70. Then, the laundry caught on the vanes
70 is lifted up to more than a certain height along the
circumferential direction of the drum 56, and then drops to the
bottom of the drum 56 by its own weight. The washing and
rinsing of the laundry are performed by the mechanical force of
such an operation of the vanes 70 and the uneven structure of
the inner wall of the drum 56.
Since the two inclined side surfaces 72 and 74 of the
vanes 70 are concave, the laundry is easily caught on the
inclined side surfaces 72 and 74, while the laundry does not
easily slip from the inclined side surfaces 72 and 74.
Accordingly, the vanes 70 lift the laundry higher, thereby
improving the washing and rinsing performance.
The vanes 70 are positioned at a predetermined angle to
the central axis (C) of the rotary shaft 62 of the drum 56.
When the drum 56 is rotated in the normal direction, the vanes
70 guide the laundry caught thereon and laterally move the
laundry along their tilted top surfaces toward the rear area of
the drum 56. On the other hand, when the drum 56 is rotated in
the opposite direction, the vanes 70 guide the laundry caught
thereon and laterally move the laundry along their tilted top
surfaces toward the front area of the drum 56. Accordingly, the
vanes 70 move the laundry in the lateral direction of the drum
56, thus improving the washing and rinsing performance.
After the washing and rinsing mode is performed, the
motor 58 is driven, and subsequently the drum 56 is rotated at
a low speed in the normal direction, thereby allowing the
laundry caught on the vanes 70 to be guided along the top
surfaces of the vanes 70 toward the rear area of the drum 56.
Then, when the drum 56 is rotated at a high speed, water
contained in the laundry is discharged to the tub 56 via the
dehydration holes 56a of the drum 56 by the centrifugal force,
thus performing a dehydration mode.
The dehydration mode is performed under the condition
that the laundry is guided by the vanes 70 toward the rear area
of the drum 56 and located adjacent to the rotary shaft 62.
Accordingly, it is possible to reduce an unbalanced
distribution of the laundry within the drum 56 and to decrease
vibration and noise generated in the dehydration mode at a high
speed.
As apparent from the above description, the present
invention provides a drum-type washing machine provided with a
plurality of vanes, each including two inclined side surfaces,
which are concave, installed at an inner wall of a drum so
that the laundry is easily caught on the inclined side
surfaces while the caught laundry does not easily slip from
the inclined side surfaces, lifted up a certain height by the
rotation of the drum, and subsequently drops by its own
weight, thereby increasing the agitation of the laundry and
size of the contact surfaces of the inclined side surfaces
with the laundry and the wash water and improving the washing
and rinsing performance of the drum-type washing machine.
Since a top surface of each vane, where the two inclined
side surfaces are interconnected, is positioned at a
predetermined angle to a central axis of a rotary shaft of the
drum, the laundry caught on the vane is guided along its top
surface so as to move back and forth. Accordingly, it is
possible to uniformly distribute the laundry within the drum,
thereby improving the washing and rinsing performance of the
drum-type washing machine. Further, it is possible to move
the laundry to the rear area of the drum in a dehydration
mode, thereby decreasing an unbalanced degree of the
distribution of the laundry within the drum and reducing
vibration and noise generated in the dehydration mode.
Moreover, each vane includes the two inclined side
surfaces, which are concave, and simultaneously the top surface
of the vane has an S shape. Accordingly, the inclined side
surfaces lift up the wash water using their concave portions,
thereby circulating the wash water and further improving the
washing and rinsing performance of the drum-type washing
machine.
Although the preferred embodiments of the present
invention have been disclosed for illustrative purposes, those
skilled in the art will appreciate that various modifications,
additions and substitutions are possible, without departing
from the scope and spirit of the invention as disclosed in the
accompanying claims.
Claims (20)
- A drum-type washing machine comprising:a tub for containing wash water, being horizontally installed within a cabinet;a drum for accommodating the laundry, being rotatably installed within the tub; anda plurality of vanes protruding from an inner wall of the drum, each vane including two inclined side surfaces,
- The drum-type washing machine as set forth in claim 1,
wherein both of the two inclined side surfaces of each of the vanes are concave. - The drum-type washing machine as set forth in claim 2,
wherein a top surface of each of the vanes, where the two inclined side surfaces are interconnected, is formed in a straight line at a predetermined angle to a central axis of a rotary shaft of the drum so that the vane guides the laundry and laterally moves the laundry by the rotation of the drum. - The drum-type washing machine as set forth in claim 3,
wherein a bottom surface of each of the vanes, being fixed to the inner wall of the drum, has a rectangular shape and is positioned to be paralleled with the central axis of the rotary shaft of the drum. - The drum-type washing machine as set forth in claim 4,
wherein an angle (α) between the inner wall of the drum and one of the two inclined side surfaces is decreased from the front end of the vane to the rear end of the vane, and an angle (β) between the inner wall of the drum and the other of the two inclined side surfaces is increased from the front end of the vane to the rear end of the vane. - The drum-type washing machine as set forth in claim 5,
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces are linearly varied from the front end of the vane to the rear end of the vane. - The drum-type washing machine as set forth in claim 6,
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces at the front end of the vane is in the range of 80° to 90°, and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces at the front end of the vane is in the range of 20° to 30°; and
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces at the rear end of the vane is in the range of 20° to 30°, and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces at the rear end of the vane is in the range of 80° to 90°. - The drum-type washing machine as set forth in claim 4,
wherein an angle (α) between the inner wall of the drum and one of the two inclined side surfaces is increased from the front end of the vane to the rear end of the vane, and an angle (β) between the inner wall of the drum and the other of the two inclined side surfaces is decreased from the front end of the vane to the rear end of the vane. - The drum-type washing machine as set forth in claim 8,
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces are linearly varied from the front end of the vane to the rear end of the vane. - The drum-type washing machine as set forth in claim 9,
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces at the front end of the vane is in the range of 20° to 30°, and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces at the front end of the vane is in the range of 80° to 90°; and
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces at the rear end of the vane is in the range of 80° to 90°, and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces at the rear end of the vane is in the range of 20° to 30°. - The drum-type washing machine as set forth in claim 1,
wherein a top surface of each of the vanes, where the two inclined side surfaces are interconnected, is formed in a curved line so that the vanes contain the wash water to lift up the wash water and subsequently to drop the wash water. - The drum-type washing machine as set forth in claim 11,
wherein the top surface of each of the vanes, where the two inclined side surfaces are interconnected, has an S shape. - A drum-type washing machine comprising:a tub for containing wash water, being horizontally installed within a cabinet;a drum for accommodating the laundry, being rotatably installed within the tub; anda plurality of vanes protruding from an inner wall of the drum, each vane including two inclined side surfaces,
- The drum-type washing machine as set forth in claim 13,
wherein a bottom surface of each of the vanes, being fixed to the inner wall of the drum, has a rectangular shape and is positioned to be paralleled with the central axis of the rotary shaft of the drum. - The drum-type washing machine as set forth in claim 14,
wherein an angle (α) between the inner wall of the drum and one of the two inclined side surfaces is decreased from the front end of the vane to the rear end of the vane, and an angle (β) between the inner wall of the drum and the other of the two inclined side surfaces is increased from the front end of the vane to the rear end of the vane. - The drum-type washing machine as set forth in claim 15,
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces are linearly varied from the front end of the vane to the rear end of the vane. - The drum-type washing machine as set forth in claim 16,
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces at the front end of the vane is in the range of 80° to 90°, and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces at the front end of the vane is in the range of 20° to 30°; and
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces at the rear end of the vane is in the range of 20° to 30°, and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces at the rear end of the vane is in the range of 80° to 90°. - The drum-type washing machine as set forth in claim 14,
wherein an angle (α) between the inner wall of the drum and one of the two inclined side surfaces is increased from the front end of the vane to the rear end of the vane, and an angle (β) between the inner wall of the drum and the other of the two inclined side surfaces is decreased from the front end of the vane to the rear end of the vane. - The drum-type washing machine as set forth in claim 18,
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces are linearly varied from the front end of the vane to the rear end of the vane. - The drum-type washing machine as set forth in claim 19,
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces at the front end of the vane is in the range of 20° to 30°, and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces at the front end of the vane is in the range of 80° to 90°; and
wherein the angle (α) between the inner wall of the drum and one of the two inclined side surfaces at the rear end of the vane is in the range of 80° to 90°, and the angle (β) between the inner wall of the drum and the other of the two inclined side surfaces at the rear end of the vane is in the range of 20° to 30°.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020084229A KR100550526B1 (en) | 2002-12-26 | 2002-12-26 | A drum washer |
KR2002084229 | 2002-12-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1433887A1 true EP1433887A1 (en) | 2004-06-30 |
Family
ID=32464614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03016731A Withdrawn EP1433887A1 (en) | 2002-12-26 | 2003-07-22 | Drum-type washing machine comprising a plurality of vanes |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040123634A1 (en) |
EP (1) | EP1433887A1 (en) |
JP (1) | JP2004209208A (en) |
KR (1) | KR100550526B1 (en) |
CN (1) | CN1316104C (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2276627A1 (en) * | 2005-12-02 | 2007-06-16 | Bsh Electrodomesticos España, S.A. | A laundry drum |
EP1860225A1 (en) * | 2005-03-15 | 2007-11-28 | Kabushiki Kaisha Kyotosangyo | Washing method |
WO2009095334A1 (en) * | 2008-01-29 | 2009-08-06 | BSH Bosch und Siemens Hausgeräte GmbH | Laundry drum for a laundry treating machine |
WO2009101098A1 (en) * | 2008-02-14 | 2009-08-20 | BSH Bosch und Siemens Hausgeräte GmbH | Drum for a laundry treatment machine |
US7810361B2 (en) | 2005-03-15 | 2010-10-12 | Happy Co., Ltd. | Washing apparatus |
US7836607B2 (en) * | 2004-06-05 | 2010-11-23 | Lg Electronics Inc. | Drum of laundry dryer |
EP2339060A2 (en) * | 2008-08-28 | 2011-06-29 | Daewoo Electronics Corporation | Dryer with a hybrid lifter |
ITRN20110002A1 (en) * | 2011-01-21 | 2012-07-22 | Indesit Co Spa | WASHING METHOD OF DELICATE TEXTILE GARMENTS USING AUTOMATIC WASHING MACHINES |
US8287662B2 (en) | 2006-03-01 | 2012-10-16 | Nippon Paint Co., Ltd. | Composition for metal surface treatment, metal surface treatment method and metal material |
RU2539337C2 (en) * | 2005-03-15 | 2015-01-20 | ХЭППИ Ко., Лтд | Washing device |
JP2017189480A (en) * | 2016-04-15 | 2017-10-19 | 日立アプライアンス株式会社 | Drum type washing machine |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100465724B1 (en) * | 2002-12-26 | 2005-01-13 | 엘지전자 주식회사 | Lift of drum washer |
KR20050006328A (en) * | 2003-07-08 | 2005-01-17 | 엘지전자 주식회사 | Drum Type Washer |
US20050204785A1 (en) * | 2004-03-19 | 2005-09-22 | Lg Electronics Inc. | Drum-type washing machine |
US7299665B2 (en) | 2004-03-19 | 2007-11-27 | Lg Electronics Inc. | Lift for drum-type washing machine |
KR100686017B1 (en) * | 2005-05-11 | 2007-02-26 | 엘지전자 주식회사 | Washing machine |
JP2007167263A (en) * | 2005-12-21 | 2007-07-05 | Sanyo Electric Co Ltd | Drum-type washing machine |
JP4921104B2 (en) * | 2006-10-18 | 2012-04-25 | 日立アプライアンス株式会社 | Drum washing machine |
KR101342368B1 (en) * | 2007-01-12 | 2013-12-16 | 엘지전자 주식회사 | Pedestal for washing machine and washing machine thereof |
KR100808204B1 (en) * | 2007-04-10 | 2008-03-03 | 엘지전자 주식회사 | Drum washing machine |
US20080295545A1 (en) * | 2007-05-29 | 2008-12-04 | Lg Electronics Inc. | Dynamic Vibration Absorber |
JP5534737B2 (en) * | 2009-05-28 | 2014-07-02 | 株式会社東芝 | Drum washing machine |
KR101868349B1 (en) * | 2011-10-24 | 2018-07-20 | 엘지전자 주식회사 | A washing machine |
CN103343440B (en) * | 2013-06-26 | 2016-05-25 | 无锡小天鹅股份有限公司 | For the cylinder of dryer with there is its dryer |
CN110093741A (en) * | 2018-01-30 | 2019-08-06 | 青岛海尔滚筒洗衣机有限公司 | A kind of inner tank of washing machine and roller washing machine |
PT3744891T (en) * | 2019-05-28 | 2022-08-01 | Jeanologia Sl | Method and apparatus for treating cloths |
CN113584806A (en) * | 2021-07-28 | 2021-11-02 | 珠海格力电器股份有限公司 | Lifting rib of washing machine, roller washing machine and control method of lifting rib of washing machine |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1136981A (en) * | 1955-11-17 | 1957-05-22 | Washing and drying machine | |
FR1580849A (en) * | 1968-01-23 | 1969-09-12 | ||
JPH02140195A (en) * | 1988-11-18 | 1990-05-29 | Fujitsu General Ltd | Washing machine |
JPH05168796A (en) * | 1991-12-26 | 1993-07-02 | Sharp Corp | Drum type clothes drying machine |
JPH10235075A (en) * | 1997-02-27 | 1998-09-08 | Sharp Corp | Drum type washing machine |
EP0957195A2 (en) * | 1998-05-13 | 1999-11-17 | Samsung Electronics Co., Ltd. | Washing machine |
DE19860529A1 (en) * | 1998-12-30 | 2000-07-06 | Boewe Garment Care Systems Gmb | Cleaning, post-treatment and drying of textiles, leather and furs uses cleaning machine with drum with asymmetrical ribs |
WO2002052090A1 (en) * | 2000-12-22 | 2002-07-04 | Arcelik A.S. | Washing machine |
EP1350880A1 (en) * | 2002-04-06 | 2003-10-08 | Electrolux Home Products Corporation N.V. | Washing machine and method for washing laundry in a washing machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2961865A (en) * | 1957-03-26 | 1960-11-29 | Gen Motors Corp | Domestic appliance |
CN2073432U (en) * | 1990-01-01 | 1991-03-20 | 荆晋宏 | Rubbing board for washing |
KR100195453B1 (en) * | 1996-05-11 | 1999-06-15 | 윤종용 | Lifter of drum type washing machine |
US5782111A (en) * | 1996-07-02 | 1998-07-21 | Sights Denim Systems Inc | Mechanical desizing and abrading apparatus |
DE19925917A1 (en) * | 1999-06-07 | 2000-12-14 | Bsh Bosch Siemens Hausgeraete | Front loading washing machine with a rotating drum |
-
2002
- 2002-12-26 KR KR1020020084229A patent/KR100550526B1/en not_active IP Right Cessation
-
2003
- 2003-04-07 US US10/407,459 patent/US20040123634A1/en not_active Abandoned
- 2003-04-09 JP JP2003104873A patent/JP2004209208A/en active Pending
- 2003-05-22 CN CNB031409466A patent/CN1316104C/en not_active Expired - Fee Related
- 2003-07-22 EP EP03016731A patent/EP1433887A1/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1136981A (en) * | 1955-11-17 | 1957-05-22 | Washing and drying machine | |
FR1580849A (en) * | 1968-01-23 | 1969-09-12 | ||
JPH02140195A (en) * | 1988-11-18 | 1990-05-29 | Fujitsu General Ltd | Washing machine |
JPH05168796A (en) * | 1991-12-26 | 1993-07-02 | Sharp Corp | Drum type clothes drying machine |
JPH10235075A (en) * | 1997-02-27 | 1998-09-08 | Sharp Corp | Drum type washing machine |
EP0957195A2 (en) * | 1998-05-13 | 1999-11-17 | Samsung Electronics Co., Ltd. | Washing machine |
DE19860529A1 (en) * | 1998-12-30 | 2000-07-06 | Boewe Garment Care Systems Gmb | Cleaning, post-treatment and drying of textiles, leather and furs uses cleaning machine with drum with asymmetrical ribs |
WO2002052090A1 (en) * | 2000-12-22 | 2002-07-04 | Arcelik A.S. | Washing machine |
EP1350880A1 (en) * | 2002-04-06 | 2003-10-08 | Electrolux Home Products Corporation N.V. | Washing machine and method for washing laundry in a washing machine |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 014, no. 382 (C - 0749) 17 August 1990 (1990-08-17) * |
PATENT ABSTRACTS OF JAPAN vol. 017, no. 571 (C - 1121) 18 October 1993 (1993-10-18) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) * |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7836607B2 (en) * | 2004-06-05 | 2010-11-23 | Lg Electronics Inc. | Drum of laundry dryer |
RU2539337C2 (en) * | 2005-03-15 | 2015-01-20 | ХЭППИ Ко., Лтд | Washing device |
EP1860225A1 (en) * | 2005-03-15 | 2007-11-28 | Kabushiki Kaisha Kyotosangyo | Washing method |
EP1860225A4 (en) * | 2005-03-15 | 2008-06-04 | Kyotosangyo Kk | Washing method |
US7650659B2 (en) | 2005-03-15 | 2010-01-26 | Kabushiki Kaisha Kyotosangyo | Washing method |
US7810361B2 (en) | 2005-03-15 | 2010-10-12 | Happy Co., Ltd. | Washing apparatus |
ES2276627A1 (en) * | 2005-12-02 | 2007-06-16 | Bsh Electrodomesticos España, S.A. | A laundry drum |
US8287662B2 (en) | 2006-03-01 | 2012-10-16 | Nippon Paint Co., Ltd. | Composition for metal surface treatment, metal surface treatment method and metal material |
US9028667B2 (en) | 2006-03-01 | 2015-05-12 | Nippon Paint Co., Ltd. | Composition for metal surface treatment, metal surface treatment method, and metal material |
WO2009095334A1 (en) * | 2008-01-29 | 2009-08-06 | BSH Bosch und Siemens Hausgeräte GmbH | Laundry drum for a laundry treating machine |
CN101932764B (en) * | 2008-01-29 | 2012-04-25 | Bsh博世和西门子家用器具有限公司 | Laundry drum for a laundry treating machine |
EA017540B1 (en) * | 2008-01-29 | 2013-01-30 | Бсх Бош Унд Сименс Хаусгерете Гмбх | Laundry drum for a laundry treating machine |
WO2009101098A1 (en) * | 2008-02-14 | 2009-08-20 | BSH Bosch und Siemens Hausgeräte GmbH | Drum for a laundry treatment machine |
EA017574B1 (en) * | 2008-02-14 | 2013-01-30 | Бсх Бош Унд Сименс Хаусгерете Гмбх | Drum for a laundry treatment machine |
EP2339060A4 (en) * | 2008-08-28 | 2013-03-13 | Daewoo Electronics Corp | Dryer with a hybrid lifter |
EP2339060A2 (en) * | 2008-08-28 | 2011-06-29 | Daewoo Electronics Corporation | Dryer with a hybrid lifter |
EP2479334A1 (en) * | 2011-01-21 | 2012-07-25 | Indesit Company S.p.A. | Method for washing delicate textile articles using an automatic washing machine |
ITRN20110002A1 (en) * | 2011-01-21 | 2012-07-22 | Indesit Co Spa | WASHING METHOD OF DELICATE TEXTILE GARMENTS USING AUTOMATIC WASHING MACHINES |
RU2605678C2 (en) * | 2011-01-21 | 2016-12-27 | Индезит Компани С.П.А. | Method of washing loose textile articles in automatic washing machine |
JP2017189480A (en) * | 2016-04-15 | 2017-10-19 | 日立アプライアンス株式会社 | Drum type washing machine |
Also Published As
Publication number | Publication date |
---|---|
JP2004209208A (en) | 2004-07-29 |
KR20040057481A (en) | 2004-07-02 |
CN1316104C (en) | 2007-05-16 |
CN1511999A (en) | 2004-07-14 |
KR100550526B1 (en) | 2006-02-10 |
US20040123634A1 (en) | 2004-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1433887A1 (en) | Drum-type washing machine comprising a plurality of vanes | |
RU2471024C2 (en) | Device of pulsator used with washing machine, and washing machine that contains it | |
US9951452B2 (en) | Drum-type washing machine | |
KR20150105092A (en) | Washing machine and manufacturing method of washing tub being provided in this | |
US20040118168A1 (en) | Lift of drum-type washing machine and drum-type washing machine using the same | |
EP1433888B1 (en) | Drum-type washing machine and lift unit thereof | |
KR100339388B1 (en) | Washing machine having a separable tub | |
EP0957195A2 (en) | Washing machine | |
KR20050087342A (en) | Inclined drum-type washing machine with pulsator and washing method in washing machine | |
KR0116133Y1 (en) | A washing machine | |
JP2006068409A (en) | Drum type washing machine | |
JP2021010452A (en) | Vertical type washing machine | |
CN110637119B (en) | Laundry treating apparatus and control method thereof | |
US20050204785A1 (en) | Drum-type washing machine | |
CN114901886B (en) | vertical washing machine | |
KR102060071B1 (en) | Control Method for Laundry Treating Apparatus | |
KR20120136801A (en) | Drum washing machine | |
KR20060004377A (en) | A washing machine having a dual washing tank | |
WO2023179189A1 (en) | Drum washing machine | |
US20030115913A1 (en) | Washing machine with an improved water tub | |
KR102065428B1 (en) | Laundry Treating Apparatus | |
KR0122341Y1 (en) | A washing lifter for the complex type washing machine | |
US20210054555A1 (en) | Drum-type washing apparatus | |
KR100360430B1 (en) | The drain device for washing machine | |
KR100640879B1 (en) | lifter of drum type washing machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030722 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
AKX | Designation fees paid |
Designated state(s): DE FR GB |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20060824 |