GB2198456A - Washing and rinsing clothes - Google Patents
Washing and rinsing clothes Download PDFInfo
- Publication number
- GB2198456A GB2198456A GB08726495A GB8726495A GB2198456A GB 2198456 A GB2198456 A GB 2198456A GB 08726495 A GB08726495 A GB 08726495A GB 8726495 A GB8726495 A GB 8726495A GB 2198456 A GB2198456 A GB 2198456A
- Authority
- GB
- United Kingdom
- Prior art keywords
- washing
- rinsing
- drum
- speed
- laundry
- 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.)
- Granted
Links
- 238000005406 washing Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004900 laundering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
- D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
A method of operating a washing machine comprises driving the laundry drum at a lower rotational speed in the rising phase than in the main washing phase. The rotational speeds in the rinsing phase and the main washing phase may be 40 and 50 to 55 r.p.m. respectively.
Description
METHOD OF OPERATING A WASHING MACHINE
The present invention relates to a method of operating a washing machine.
In the operation of a drum washing machine with a laundry drum which is rotatably mounted at least approximately horizontally, the laundry is soaked with washing liquor during a main washing step and with rinsing liquor, as far as possible free from washing agent, during a subsequent rinsing step. Such a laundering process is generally usual in a washing machine with a laundry drum which is rotatably mounted at least approximately horizontally.
It would be desirable to improve the machine operation, however, by so improving the effectiveness of the rinsing step that altogether less water needs to be expended for the rinsing.
According to the present invention there is provided a method of operating a washing machine with a drum rotatable about a substantially horizontal axis, the method comprising the step of rotationally driving the drum at a first rotational speed for washing laundry in washing liquid in the drum in a main washing phase of the machine operation and subsequently at a second rotational speed for rinsing the washed laundry in rinsing liquid in the drum in a rinsing phase of the machine operation, the second speed being slower than the first speed.
It has been found that the rinsing effect can be improved if the laundry drum is driven at a lower rotational speed during the rinsing step than during the washing step. Thereby, a noteworthy part of the time expended and correspondingly a noteworthy part of the quantity of water consumed can be saved in the rinsing stages of the usual laundering processes.
With a drum rotational speed between 50 and 55 revolutions per minute for the main washing step, a drum rotational speed of about 40 revolutions per minute for the rinsing step has proved to be particularly advantageous.
The rinsing effect can be improved further at a rotational speed reduced in that manner that the laundry drum contains equipment which, during the rotation, raises rinsing liquor from the lower region of the liquor container and feeds it back to the laundry from above.
In a preferred example of the method, the drum of a washing machine is driven at about 50 to 55 revolutions per minute during a main washing step, when the laundry is soaked with washing liquid, and subsequently at about 40 revolutions per minute in a rinsing step when the laundry is rinsed in a rinsing liquor which, as far as possible, is free of washing agent. The ratio of the rotational speeds is thus about 4:5.
Claims (3)
1. A method of operating a washing machine with a drum rotatable about a substantially horizontal axis, the method comprising the step of rotationally driving the drum at a first rotational speed for washing laundry in washing liquid in the drum in a main washing phase of the machine operation and subsequently at a second rotational speed for rinsing the washed laundry in rinsing liquid in the drum in a rinsing phase of the machine operation, the second speed being slower than the first speed.
2. A method as claimed in claim 1, wherein the first speed is substantially 50 to 55 revolutions per minute and the second speed is substantially 40 revolutions per minute.
3. A method as claimed in claim 1 and substantially as hereinbefore described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863642578 DE3642578A1 (en) | 1986-12-12 | 1986-12-12 | WASHING PROCEDURE |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8726495D0 GB8726495D0 (en) | 1987-12-16 |
| GB2198456A true GB2198456A (en) | 1988-06-15 |
| GB2198456B GB2198456B (en) | 1990-03-28 |
Family
ID=6316099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8726495A Expired - Lifetime GB2198456B (en) | 1986-12-12 | 1987-11-12 | Method of operating a washing machine |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE3642578A1 (en) |
| FR (1) | FR2608181B1 (en) |
| GB (1) | GB2198456B (en) |
| IT (1) | IT1223268B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596889A (en) * | 1995-10-20 | 1997-01-28 | Electric Power Research Institute | Laundry machine with reduced suds spin cycle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1525295A (en) * | 1967-04-05 | 1968-05-17 | Sedelem Soc D Etudes Et De Dev | Washing cycle for automatic washing machine |
| FR2559798B1 (en) * | 1984-02-17 | 1986-11-07 | Esswein Sa | LAUNDRY MACHINE WITH A LOW HEIGHT IN THE TANK ABOVE THE BOTTOM OF THE DRUM |
-
1986
- 1986-12-12 DE DE19863642578 patent/DE3642578A1/en active Granted
-
1987
- 1987-11-12 GB GB8726495A patent/GB2198456B/en not_active Expired - Lifetime
- 1987-12-10 FR FR8717226A patent/FR2608181B1/en not_active Expired
- 1987-12-11 IT IT22954/87A patent/IT1223268B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596889A (en) * | 1995-10-20 | 1997-01-28 | Electric Power Research Institute | Laundry machine with reduced suds spin cycle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3642578A1 (en) | 1988-06-23 |
| GB2198456B (en) | 1990-03-28 |
| GB8726495D0 (en) | 1987-12-16 |
| IT1223268B (en) | 1990-09-19 |
| FR2608181B1 (en) | 1989-08-18 |
| FR2608181A1 (en) | 1988-06-17 |
| DE3642578C2 (en) | 1990-02-01 |
| IT8722954A0 (en) | 1987-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |