WO2010038073A1 - Drum - Google Patents
Drum Download PDFInfo
- Publication number
- WO2010038073A1 WO2010038073A1 PCT/GB2009/051287 GB2009051287W WO2010038073A1 WO 2010038073 A1 WO2010038073 A1 WO 2010038073A1 GB 2009051287 W GB2009051287 W GB 2009051287W WO 2010038073 A1 WO2010038073 A1 WO 2010038073A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drum
- zone
- lateral wall
- aperture
- apertures
- Prior art date
Links
- 238000005406 washing Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000002351 wastewater Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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
-
- 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
- D06F37/26—Casings; Tubs
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
Definitions
- the present invention relates to laundry apparatus including a drum
- laundry apparatus or washing machines include a drum which is comprised of a cylinder having an opening at one end to receive laundry and a cylindrical lateral wall having regularly spaced apertures therein for release of waste water during the drain and spinning cycles of the machine.
- the present invention relates to laundry apparatus including a drum, particularly for the type of laundry apparatus wherein the drum may be slideably retracted from the machine.
- a machine instead of the door pivotally opening from the front of the machine to allow access to the interior of the drum, the entire drum can be moved between a retracted position within the outer dimension of the washing machine and a withdrawn position wherein access may be gained to the inside of the drum in a substantially vertical direction.
- Such a machine may be termed a sliding drawer washing machine. Sliding drawer washing machines can be positioned under, for example, kitchen counters or units. This arrangement contrasts with other types of vertically loaded washing machines are top loaded and have an opening in the upper surface, thereby precluding the possibility for fitting under kitchen units for example.
- a sliding drawer laundry apparatus comprising a drum for a washing machine comprising a substantially lateral wall, the lateral wall comprising adjacent circumferential zones, the first zone having a plurality of apertures therein and the second zone being substantially aperture free.
- circumferential in this context indicates that a zone has a dimension that extends in a direction substantially perpendicular to the axis about which the drum rotates when in use.
- the lateral wall of the drum is preferably substantially cylindrical.
- the drum preferably further comprises a first end portion positioned at one end of the lateral wall of the drum, this first end portion is preferably fixedly engaged with the lateral wall.
- a second end portion is preferably fixedly located at a second end of the lateral wall of the drum.
- the second end of the lateral wall of the drum is the end which is located at the front of the machine and as such may include a front part of the machine which is aesthetically configured to fit with the casing of the machine.
- the second end portion is preferably fixedly connected to the lateral wall of the drum.
- the drum therefore preferably comprises a cylinder having first and second end portions.
- the first end portion is preferably arranged to be fixedly connected to the lateral wall of the drum.
- the drum is preferably arranged to seat in an outer drum and isrotatably mounted therein, wherein water purged or drained from the laundry passes through theapertures in the drum and into the area or space defined between the outer surface of the lateral wallof the drum and the inner surface of the outer drum. This water is then evacuated from the outer drum via an aperture portion by known methods.
- the second zone of the drum is preferably generally concave.
- the second zone preferably extends substantially between one third and one half of the perimeter of the drum.
- the second zone extends as such in order that when the drum is retracted from the machine following a washing cycle and the second zone is the lowest part of the drum, any remaining water within the drum will not drop onto the floor but is prevented from doing so by the lack of apertures in the second zone.
- the drum preferably further comprises laundry agitating means comprising one or more protrusions extending from the lateral wall into the drum. Such protrusions aid in the agitation of the laundry during the washing cycle.
- An aperture is preferably provided in the first zone.
- a closure means (a door) is arranged to cover the aperture.
- the closure means is preferably slidable between a first configuration enabling access to the aperture and a second configuration wherein the aperture is covered.
- the aperture enables laundry to be loaded into and removed from the drum.
- the first end portion is preferably substantially circular and preferably comprises a segment having a plurality of apertures therein.
- the purpose of such apertures is primarily that liquid can pass therethrough following the wash of the laundry and prior to the spin cycle commencing.
- the second zone being substantially aperture free prevents liquid passingtherethrough and accordingly prevents liquid from falling onto the floor as the drum is retracted from the machine when the second zone is the lowest part of the drum. A portion of the drum remains within the casing of the machine when retracted and as such any remaining liquid can pass through the portion that remains within the confines of the machine without falling onto the surrounding floor.
- the plurality of apertures of the first end portion are preferably located such that the points at which the cord defining the segment contact the circumference of the first end portionare substantially at the same circumferential point as the extremities of the circumferential length of the first circumferential zone, or alternatively put, the boundaries between the first and second zones.
- the drum preferably comprises a third circumferential zone extending around substantially the entire circumference of the lateral wall having a plurality of apertures therein. This isagain for release of waste water from the wash and may also act to release any remainingliquid into the outer drum during the spin cycle. As described above, the drum is retracted from the machine to allow emptying of the laundry, however a portion of the drum remains located within the confines of the machine and as such this portion preferably comprises a plurality of the apertures therein to allow liquid to pass therethrough without the risk ofliquid falling onto the surrounding floor.
- the third circumferential zone preferably has a longitudinalthickness along the lateral wall of less than one quarter of the longitudinal length of the lateralwall of the drum. The benefit of such measurements is that the drum is able to be sufficiently retracted from the confines of the machine that insertion and removal of laundry from the drum is simple but the drum is safely retained by the machine.
- the third zone is preferably located adjacent to the first end portion.
- the relative area of the lateral wall of the drum having apertures therein preferably comprises approximately four fifths of the total area of the lateral wall. Even more preferably, the area of lateral wall having apertures therein comprises approximately 0.78m 2 and the area being substantially aperture free comprises approximately 0.22m 2 .
- Figure 1 is a schematic view of the cylindrical lateral wall of a drum according to an exemplary embodiment of the present invention.
- Figure 2 is a schematic perspective view of a back plate of the drum according to an exemplary embodiment of the present invention.
- Figure 3a is a schematic perspective view of the drum seated in the outer drum portion; and Figure 3b is a schematic representation of the drum and outer drum portion of Figure 3 a with a section of the outer drum portion removed for clarity purposes.
- the drum comprises a curved lateral (side) wall and optionally a first end (back) portion and optionally a second end (front) portion.
- the drum may travel between a first retracted position located within the outer dimensions of the washing machine caseand a withdrawn position wherein the drum is sufficiently withdrawn to allow access to at least one aperture in the curved lateral wall of the drum.
- the aperture is configured and dimensioned to allow insertion and removal of laundry items.
- the direction of movement of the drum from a retracted to the withdrawn position is substantially parallel to the longitudinal axis of the drum.
- the drum as described herein is cylindrical, however, it will be appreciated that alternative dimensions can be provided such as a frustro-conical shape.
- the cylindrical lateral wall 2 comprises a first zone 4 having a plurality of apertures therein.
- the apertures are arranged in order that waste water canpass therethrough during the spin cycle of the machine, however the apertures aresufficiently small that laundry is retained within the drum.
- a second zone 6 isprovided circumferentially in the lateral wall of the drum adjacent to the zone
- the zone 6 is free of apertures being configured in such a manner inorder that when the drum is at rest having completed a spin cycle or other washing event and the second zone 6 is the lowest part of the drum, watercannot pass through the portion of the lateral wall of the drum defined by zone 6.
- zone 6 In the withdrawn- configuration, when the drum is withdrawn from the machine in order to enable loading and unloading of laundry, water is thereby prevented from dripping from the drum onto the surrounding ground. This is clearly beneficial as it is undesirable and potentially dangerous to have water on the floor in the area surrounding the drum during unloading in particular.
- the drum comprises a forward edge 8 which defines the perimeter of the cylindrical lateral wall and a rearward perimeter edge 10 which defines the rearward perimeter edge of the drum.
- the rearward edge is prevented from being withdrawn from the outer drum portion of the machine which retains the drum therein when themachine is closed.
- the drum In its furthest withdrawn configuration, the drum is located such thatmost of the cylindrical lateral wall is withdrawn from the outer drum portion of the machine.
- a portion 12 of the drum is prevented from being withdrawn from the machine by a buffer (not shown) and as such a circumferential zone of the cylindrical lateral wall which extends around substantially the entire circumference of the drum mayhave a plurality of apertures therein.
- the portion of the drum 12 having apertures extending around the entire circumference is relatively thin, and may be approximately
- a line A-A has been indicated on Figure 1, which represents the balance point at which the drum is arranged to rest when the spin cycle has finished. This substantially bisects the zone 6 and at rest should be the lower most point of the drum relative to the ground and the casing of the machine. This ensures that there is a minimal chance of water escaping through the apertures in zone 4 adjacent to zone 6.
- the end portion 16 is substantially circular and is fixedly connected to the rearward edge 10 of the drum.
- a segment 18 of the end portion 16 is provided having a plurality of apertures therein which enables waste water to pass therethrough to a small degree during rotation of the drum as most of the waste water will be ejected through the circumferential apertures due to rotation.
- the primary purpose of such apertures is that water can pass through these apertures during the initial drainage of the items being washed (see Figures 3a and 3b).
- the mid point of the outer perimeter of the edge portion 16 defined by the segment 18 should be located along the axis A-A in order to ensuremaximum effectiveness as the drum is arranged to come to a rest configuration during use with the line A-A at the lowermost point.
- the orientation of the edge portion 16 in Figure 2 is the preferred orientation when the drum is in the rest configuration when the laundry is entered into or removed from the drum.
- a forward end portion (shown in Figures 3a and 3b) is also beneficially provided and may be fixedly connected to the forward edge 8.
- the forward end portion is beneficially fixed relative to the drum. This is different to standard washing machines wherein this portion is generally hingedly releasable from the drum in order to load and unload the laundry.
- the drive arrangement for the drum in a washing machine according to the present invention includes a drive means at the back of the drum and a bearing and front which support the rearward and forward ends of the drum respectively.
- a closable aperture 20 is also provided in the cylindrical lateral wall 2 and is provided substantially opposite zone 6. This has the effect that in the rest configuration when the drum is withdrawn from the washing machine and the zone 6 is at the lower most position relative to the ground, access to the inside of the drum is provided through the uppermost portion of the drum.
- the aperture 20 is preferably closable via a door means, and a door means may be slideable between an open and a closed position. Sliding is preferably in a longitudinal direction with respect to the drum,however, it is envisaged that in other embodiments of the present invention the door could be slid circumferentially with respect to the drum. Alternatively, a hinged arrangement may be provided.
- the door may comprise a plurality of apertures therein as indicated in Figure 1 for increased wastewater purging from the laundry. Detail ofthe door is not shown, however thedoor preferably extends substantially the Ion- gitudinal length of the drum.
- the door is preferably retained by the machine as the drum is withdrawn from the machine suchthat automatic opening of the door occurs on withdrawal of the drum. It is beneficial for the door to have a plurality of apertures therein in order to ensure maximum possible ejection of water from the washing during the spin cycle.
- the drum including the cylindrical lateral wall 2 , second end portion (front portion) 3 and first end portion (back portion) which is not visible in Figures 3a or 3b provides the enclosure for receiving the laundry and seats within outerdrum portion 30, which in its simplest form comprises a sleeve.
- a drive mechanism (notshown) is arranged to locate on the front and rear portions and an attachment mechanism31 are fixed to the second end portion 3 and the first end portion (not shown).
- the inner drum comprising the lateral wall 2 and front and rear end portions rotate about the axis extending between the attachment arrangements 31.
- the outer drum portion 30 is arranged toreceive the water expelled from the apertures in the lateral wall 2, drum door, and backportion of the drum.
- the water may then be expelled through outlet 34.
- the drumcomprising the lateral wall and front and rear end portions is rotatably mounted within the outer drum portion 30, and a seal arrangement 32 is provided between the edge of the outer drum portion and the rotatably mounted drum defined by the lateral wall and front and rearend portions in order that water is prevented from leaving the outer drum portion otherthan through outlet 34.
- a further seal arrangement (not shown) is provided to prevent water from escaping between the back portion and the outer drum portion 30, and the drum compresses against this seal arrangement 32 to provide a seal.
- the seal arrangement 32 may be provided fixedly connected to the outer drum portion 30, and the drum compresses against this seal arrangement 32 to promote a seal.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0920775A BRPI0920775A2 (en) | 2008-10-01 | 2009-10-01 | Sliding drawer washing machine. |
EA201100574A EA201100574A1 (en) | 2008-10-01 | 2009-10-01 | DRUM |
AU2009299612A AU2009299612A1 (en) | 2008-10-01 | 2009-10-01 | Drum |
EP09785715A EP2350371A1 (en) | 2008-10-01 | 2009-10-01 | Drum |
US13/122,219 US20110179832A1 (en) | 2008-10-01 | 2009-10-01 | Drum |
JP2011529632A JP2012504446A (en) | 2008-10-01 | 2009-10-01 | drum |
CN2009801434382A CN102203338A (en) | 2008-10-01 | 2009-10-01 | Drum |
ZA2011/03241A ZA201103241B (en) | 2008-10-01 | 2011-05-05 | Drum |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0817960.8A GB0817960D0 (en) | 2008-10-01 | 2008-10-01 | Drum |
GB0817960.8 | 2008-10-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010038073A1 true WO2010038073A1 (en) | 2010-04-08 |
Family
ID=40019866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2009/051287 WO2010038073A1 (en) | 2008-10-01 | 2009-10-01 | Drum |
Country Status (11)
Country | Link |
---|---|
US (1) | US20110179832A1 (en) |
EP (1) | EP2350371A1 (en) |
JP (1) | JP2012504446A (en) |
KR (1) | KR20110069125A (en) |
CN (1) | CN102203338A (en) |
AU (1) | AU2009299612A1 (en) |
BR (1) | BRPI0920775A2 (en) |
EA (1) | EA201100574A1 (en) |
GB (1) | GB0817960D0 (en) |
WO (1) | WO2010038073A1 (en) |
ZA (1) | ZA201103241B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2817501A (en) * | 1955-04-04 | 1957-12-24 | Philco Corp | Laundry apparatus |
WO2000014322A1 (en) * | 1998-09-05 | 2000-03-16 | Andrew Martin Reason | Laundry apparatus |
US20020157430A1 (en) * | 2001-04-30 | 2002-10-31 | Fuyu Ren | Drum washing machine with draw-out inner spin basket |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101054408B1 (en) * | 2004-04-19 | 2011-08-05 | 엘지전자 주식회사 | washer |
-
2008
- 2008-10-01 GB GBGB0817960.8A patent/GB0817960D0/en not_active Ceased
-
2009
- 2009-10-01 WO PCT/GB2009/051287 patent/WO2010038073A1/en active Application Filing
- 2009-10-01 KR KR1020117009847A patent/KR20110069125A/en not_active Application Discontinuation
- 2009-10-01 CN CN2009801434382A patent/CN102203338A/en active Pending
- 2009-10-01 EP EP09785715A patent/EP2350371A1/en not_active Withdrawn
- 2009-10-01 AU AU2009299612A patent/AU2009299612A1/en not_active Abandoned
- 2009-10-01 BR BRPI0920775A patent/BRPI0920775A2/en not_active Application Discontinuation
- 2009-10-01 US US13/122,219 patent/US20110179832A1/en not_active Abandoned
- 2009-10-01 EA EA201100574A patent/EA201100574A1/en unknown
- 2009-10-01 JP JP2011529632A patent/JP2012504446A/en active Pending
-
2011
- 2011-05-05 ZA ZA2011/03241A patent/ZA201103241B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2817501A (en) * | 1955-04-04 | 1957-12-24 | Philco Corp | Laundry apparatus |
WO2000014322A1 (en) * | 1998-09-05 | 2000-03-16 | Andrew Martin Reason | Laundry apparatus |
US20020157430A1 (en) * | 2001-04-30 | 2002-10-31 | Fuyu Ren | Drum washing machine with draw-out inner spin basket |
Also Published As
Publication number | Publication date |
---|---|
AU2009299612A1 (en) | 2010-04-08 |
EP2350371A1 (en) | 2011-08-03 |
GB0817960D0 (en) | 2008-11-05 |
JP2012504446A (en) | 2012-02-23 |
ZA201103241B (en) | 2011-12-28 |
US20110179832A1 (en) | 2011-07-28 |
CN102203338A (en) | 2011-09-28 |
BRPI0920775A2 (en) | 2015-12-22 |
EA201100574A1 (en) | 2011-12-30 |
KR20110069125A (en) | 2011-06-22 |
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