WO2003014454A1 - A washing machine with a second drum - Google Patents
A washing machine with a second drum Download PDFInfo
- Publication number
- WO2003014454A1 WO2003014454A1 PCT/TR2002/000030 TR0200030W WO03014454A1 WO 2003014454 A1 WO2003014454 A1 WO 2003014454A1 TR 0200030 W TR0200030 W TR 0200030W WO 03014454 A1 WO03014454 A1 WO 03014454A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drum
- washing machine
- main
- main drum
- inner drum
- Prior art date
Links
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
- D06F37/08—Partitions
-
- 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
Definitions
- the present invention relates to washing machines having a second drum that is placed within the other drum of the washing machines especially with horizontal or inclined axes, and which provides an increase in the washing efficiency.
- an object being placed in the drum which floats when the tub is filled with water, and which enhances the movement of the laundry during the washing cycle, due to its outer surface including recesses and protrusions, is disclosed.
- This object may occupy a large space in the tub and may reduce the inner volume of the drum.
- a tray that can be removably mounted in the drum, for smaller and delicate laundry is disclosed. Said tray is suspended between the rear wall and the inlet of the drum and used for drying purposes.
- the object of the present invention is to enhance the rotational/dropping movements of the laundry and its interaction with such substances as detergents, etc. even when the drum is fully loaded.
- Another object of the present invention is to reduce the possibility of the unbalanced loaddistribution of the laundry in the drum, which leads to unwanted vibrations of the tub.
- Figure 1 is the schematic diagram of a washing machine with a cylindrical inner drum
- Figure 2 is the schematic diagram of a washing machine with a conical inner drum
- FIG. 3 is the schematic diagram of a washing machine with an other conical inner drum
- Figure 4 is the schematic diagram of a washing machine with a lid over the second drum.
- the washing machine comprises a cabinet (1), a tub (2), a main drum (3) placed in the tub (2), an inner drum (4) placed in the main drum (3) which provides a more efficient washing, an inlet (5) for loading the laundry into the main drum (3), several ribs (12) on the inner surface of the main drum (3), a motor (6) providing the rotational motion of the main drum (3), a moment transmission assembly (7) for the transmission of the movement of the motor (6), shafts (9 and 8) transmitting the motion from the moment transmission group, such as the belt, pulley, gear, etc., to the main and inner drums (3 and A), and the main and inner bearing slots (10 and 11) through which the shafts (9 and 8) pass.
- the moment transmission group such as the belt, pulley, gear, etc.
- the washing machine is preferably with a horizontal axis.
- the rotational axis of the main drum (3) accommodating the laundry, is parallel to the ground or inclined with an angle smaller than 45°.
- the laundry inlet (5) is situated on top (top-loading type) or preferably on the front face (front-loading type) of the cabinet (1).
- the inner drum (4) has a conical, preferably a cylindrical shape.
- the inner drum (4) is placed in the main drum (3) in such a manner that the inlets (5) of both of them are at the same direction.
- the inner drum (4) is placed at the rear wall of the main drum (3) preferably with congruent rotational axes.
- the diameter of the inner drum (4) is smaller than that of the main drum (3), preferably large enough to accommodate a hand, but small enough to provide space for the other laundry between its outer surface and the inner surface of the main drum (3). Small pieces of laundry such as socks, handkerchiefs, underwear, etc. may be loaded into the inner drum (4).
- the inner drum (4) may be used both for washing small pieces of laundry and for only providing the distribution of laundry within the main drum (3).
- the outer surface of the inner drum (4) is preferably perforated as that of the main drum (3) or is in the form of a smooth surface.
- the main drum shaft (9) mounted onto the rear surface of the main drum (3) is in a hollow cylindrical form.
- the inner drum shaft (8) fixed on the rear surface of the inner drum (4) passes through the cylindrical space in the main drum shaft (9) and rotates inside the main drum shaft (9).
- Said main drum shaft (9) rotates in the main drum bearing slot (10) whereas the inner drum shaft (8) rotates in the inner drum bearing slot (11) located at the center of the main drum shaft (9).
- Said shafts (8 and 9) are driven by the same or different motors and by the moment transmission group (7).
- the rotation of two shafts (8 and 9) at the same or different speeds, in the same or opposite directions is provided by driving the two shafts (8 and 9) by a single motor (6) using gear mechanisms between the motor (6) and the shafts (8 and 9).
- the inner drum (4) and the main drum (3) rotate at the same or different speeds, in the same or opposite directions or it may be possible that only the main drum (3) rotates.
- the outer surface of the inner drum (4) is provided with protruding ribs (12) serving to carry the laundry inside the main drum (3), instead of being a homogeneous, cylindrical structure.
- the laundries are placed into a region between the inner surface of the main drum (3) and the outer surface of the inner drum (4), and are forced to move by the ribs (12) provided both in the main drum (3) and on the outer surface of the inner drum (4), during the rotational movement of the main drum (3).
- a lid (13) is provided on the outer surface of the imier drum (4).
- the laundry can be moved about the rotational axis of the inner drum (4) by means of the lid (13), when said lid (13) is opened.
- the tumbling action i.e. raising the laundries to a certain height and dropping them down, is prevented and a circular motion of the laundries inside the main drum (3) is provided. It increases the washing performance and reduces the possibility of an unbalanced distribution of the loads within the main drum (3).
- the inner drum (4) is made of the same or different material as the main drum (3), preferably of plastics.
- the inner drum (4) is removably mounted by means of a mechanism.
- said inner drum (4) can be removed with the laundry it contains or as empty, and in this case the washing machine is operated by the method per se, as explained in the state of art.
- the inner drum shaft (8) is divided into two parts, one of which remains on the main drum (3), whereas the other part that is mounted on the back surface of the inner drum (4), is removed together with the inner drum (4).
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR01/01957 | 2001-07-09 | ||
TR200101957 | 2001-07-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003014454A1 true WO2003014454A1 (en) | 2003-02-20 |
Family
ID=21623218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/TR2002/000030 WO2003014454A1 (en) | 2001-07-09 | 2002-07-08 | A washing machine with a second drum |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2003014454A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20100027A1 (en) * | 2010-01-15 | 2011-07-16 | Alberto Scarafiotti | BASKET OF A MACHINE FOR THE TREATMENT OF HEADS, AND ITS MACHINE |
ITRM20100131A1 (en) * | 2010-03-24 | 2011-09-25 | Bitron Spa | BASKET FOR APPLIANCES. |
CN102373604A (en) * | 2011-10-13 | 2012-03-14 | 飞龙家电集团有限公司 | Inner drum of drum type washing machine |
CN109415865A (en) * | 2016-04-27 | 2019-03-01 | Lg电子株式会社 | Clothes treatment device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1262774A (en) * | 1968-05-08 | 1972-02-09 | Gen Electric | Improvements in washing machine |
JPS57103683A (en) * | 1980-12-18 | 1982-06-28 | Sanyo Electric Co | Washing device |
JPH04307098A (en) * | 1991-04-02 | 1992-10-29 | Matsushita Electric Ind Co Ltd | Clothes dryer |
JPH09201489A (en) * | 1996-01-25 | 1997-08-05 | Toshiba Corp | Washing machine |
-
2002
- 2002-07-08 WO PCT/TR2002/000030 patent/WO2003014454A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1262774A (en) * | 1968-05-08 | 1972-02-09 | Gen Electric | Improvements in washing machine |
JPS57103683A (en) * | 1980-12-18 | 1982-06-28 | Sanyo Electric Co | Washing device |
JPH04307098A (en) * | 1991-04-02 | 1992-10-29 | Matsushita Electric Ind Co Ltd | Clothes dryer |
JPH09201489A (en) * | 1996-01-25 | 1997-08-05 | Toshiba Corp | Washing machine |
Non-Patent Citations (3)
Title |
---|
DATABASE WPI Section Ch Week 198841, Derwent World Patents Index; Class F07, AN 1988-290626, XP002214764 * |
PATENT ABSTRACTS OF JAPAN vol. 017, no. 131 (C - 1036) 18 March 1993 (1993-03-18) * |
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 12 25 December 1997 (1997-12-25) * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20100027A1 (en) * | 2010-01-15 | 2011-07-16 | Alberto Scarafiotti | BASKET OF A MACHINE FOR THE TREATMENT OF HEADS, AND ITS MACHINE |
WO2011086428A1 (en) * | 2010-01-15 | 2011-07-21 | Alberto Scarafiotti | Drum of a machine for treating laundry and machine having said drum |
US9194075B2 (en) | 2010-01-15 | 2015-11-24 | Alberto Scarafiotti | Drum of a machine for treating laundry and machine having said drum |
ITRM20100131A1 (en) * | 2010-03-24 | 2011-09-25 | Bitron Spa | BASKET FOR APPLIANCES. |
CN102373604A (en) * | 2011-10-13 | 2012-03-14 | 飞龙家电集团有限公司 | Inner drum of drum type washing machine |
CN102373604B (en) * | 2011-10-13 | 2013-01-16 | 飞龙家电集团有限公司 | Inner drum of drum type washing machine |
CN109415865A (en) * | 2016-04-27 | 2019-03-01 | Lg电子株式会社 | Clothes treatment device |
US10975508B2 (en) | 2016-04-27 | 2021-04-13 | Lg Electronics Inc. | Clothing treatment device |
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