EP0874078A2 - Improvements introduced for the drum spindle of automatic washing machines - Google Patents
Improvements introduced for the drum spindle of automatic washing machines Download PDFInfo
- Publication number
- EP0874078A2 EP0874078A2 EP98500050A EP98500050A EP0874078A2 EP 0874078 A2 EP0874078 A2 EP 0874078A2 EP 98500050 A EP98500050 A EP 98500050A EP 98500050 A EP98500050 A EP 98500050A EP 0874078 A2 EP0874078 A2 EP 0874078A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spindle
- drum
- washing machines
- improvements introduced
- interlocked
- 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.)
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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
Definitions
- the following invention consists of some improvements introduced for the drum spindle of automatic washing machines, so that the spindle is joined by one of its extremes to the drum body of the washing machine, having a pair of bearings and a detent that allow the turn with regard to the tank that covers the drum, and being joined by its other base through a threaded screw.
- the presented improvements are applicable for their incorporation to the spindles that transmit the swiveling to the automatic washing machines drums, through which a perfect watertightness is obtained in a simple way with a minimum cost.
- the turn spindles that are interlocked to the automatic washing machines have in the extreme of interlocked fixing to the drum body, a stretch of bigger diameter in relationship to which one of the bearings remains backed, while near its fixed extreme, the spindle has a perimetric cope that makes easy the interlocked union with the drum for the working should be suitable, carrying out perfectly the characteristics of antiturn, antitraction and perpendicularity between them.
- the cited spindle In a second execution of the spindle that transmits the swiveling to the drum of the washing machine to which it is interlocked, the cited spindle is defined by a body with a cylindrical general shape whose extreme of interlocked fixing to the drum body has a continuous diameter on which a ferrule is placed.
- the pulley that receives the swiveling for the turn of the drum spindle remains running up directly against the back bearings, forming an interlocked whole with the spindle when the corresponding screw is tightened over the cited pulley.
- Figure 1. It shows a sectioned view of the spindle drum of a washing machine, so that the conventional assembly way has been represented in a side, where we observe the addition of thickness of the internal extreme of the spindle with the watertight body that remain perimetric with regard to it, in relationship to the corresponding backed bearing, while in its other side the spindle has been represented with the improvements introduced in the same one, that are refered to the independent ferrule and to the o-ring seal of watertightness so that we can observe the structural difference that is between both.
- the o-ring seal (9) is coming up in a perimetric way against a circular projecting (13) of the own drum (2), so that thus it is perfectly placed.
- the pulley (12) that receives the swiveling for the turn of the drum spindle, is coming up against the back bearings (6), so that when the screw is threaded (10), the pulley (12) forms an unitary whole with the gyratory elements, pressing on the o-ring seal (9) that does a closing perfectly watertigth.
- the o-ring seal (9) does a watertigth closing, totally reliable, while the independent ferrule (8) is centred by itself, having a perfect behaviour in all the spindle whole.
- This execution has a reduced economic cost, so that it is accesible for its incorporation to whole range of apparatus models that can incorporate it.
Abstract
Improvements introduced for the drum spindle of the automatic washing machines
being of the kind of those where the spindle remains interlocked to the washing machine
drum and crosses the tank body, for which it has a pair of bearings that allow the turn of
the spindle with regard to the tank, so that the spindle (1), with a constant diameter, has
an independent ferrule that claspes to the same in relationship to the external part of
interlocked union to the drum body (2), which remains placed in collaboration with the o-ring
seal (9) between the cited drum body (2) and the intemal bearing (6).
Description
As is expressed in the title of the present descriptive report, the following invention
consists of some improvements introduced for the drum spindle of automatic washing
machines, so that the spindle is joined by one of its extremes to the drum body of the
washing machine, having a pair of bearings and a detent that allow the turn with regard to
the tank that covers the drum, and being joined by its other base through a threaded
screw.
The improvements introduced in the drum spindle starting from shaping the
spindle in relationship to its internal part related to the zone that is included between the
internal bearing and the fixing to the drum, with the same diameter than the bearings
zone, placing on it an independent ferrule with the interposition of an o-ring seal in
relationship to the backing base on the zone that is related to the union with the drum.
In this way, fixing the spindle by the back screw, the fixing of the independent
ferrule and the joint with the gyratory whole is realized , so that the joint impedes a
possible water pass that can manage to damage the spindle.
The presented improvements are applicable for their incorporation to the spindles
that transmit the swiveling to the automatic washing machines drums, through which a
perfect watertightness is obtained in a simple way with a minimum cost.
Conventionally, the turn spindles that are interlocked to the automatic washing
machines have in the extreme of interlocked fixing to the drum body, a stretch of bigger
diameter in relationship to which one of the bearings remains backed, while near its fixed
extreme, the spindle has a perimetric cope that makes easy the interlocked union with the
drum for the working should be suitable, carrying out perfectly the characteristics of
antiturn, antitraction and perpendicularity between them.
Likewise, on the stretch with an adittion of thickness of the spindle, it has a gum
body that acts as a watertigth element, since if a water filtration happened, it would affect
the bearings zone, damaging the bearings tracks and consistently both bodies.
In a second execution of the spindle that transmits the swiveling to the drum of the
washing machine to which it is interlocked, the cited spindle is defined by a body with a
cylindrical general shape whose extreme of interlocked fixing to the drum body has a
continuous diameter on which a ferrule is placed.
A drawback emerges in this execution, and it consist on the ferrule must have a
perfect fitting to the spindle, being it mechanized, rectified and galvanized because of this
motive, so that the cited execution increases the price of the product substantially, not
being advisable its incorporation to determined appliances.
Besides, if there is some water filtration, it also can affect to the components of the
spindle whole.
Thus, starting from the knowing of theese drawbacks, it is a question of being able
to obtain a whole of the turn spindle of the washing machines drum that must be 100%
effective, besides of being economical.
In the present report some improvements introduced in the drum spindle of the
automatic washing machines are described, being of the kind of those in which the spindle
remains interlocked to the body of the washing machine drum and crosses the tank body,
having for this motive a pair of bearings that allow the spindle turn with regard to tank that
covers the drum, so that the improvement consists on the incorporation of an independent
ferrule that claspes the turn in relationship to the extreme side that is related to internal
bearing, as well as an o-ring seal that is placed between the cited ferrule and the drum
body.
Placing the ferrule in this way, it is not necessary any special mechanization or
rectification, being it centred appropiately by itself and so that the o-ring seal avoides the
water pass to the bearing tracks and the consequent deterioration of the cited tracks,
having to change the whole of the spindle for solving the problem, with the high cost that it
means.
In the other hand, the pulley that receives the swiveling for the turn of the drum
spindle, remains running up directly against the back bearings, forming an interlocked
whole with the spindle when the corresponding screw is tightened over the cited pulley.
In order to complement the description which is done hereinafter and for the
purpose of providing a better understanding of its characteristics, the present descriptive
report is accompanied by a drawing, in whose only figure the most significant details of
the invention are represented in an illustrative and not limitative way.
Figure 1.- It shows a sectioned view of the spindle drum of a washing machine, so
that the conventional assembly way has been represented in a side, where we observe
the addition of thickness of the internal extreme of the spindle with the watertight body that
remain perimetric with regard to it, in relationship to the corresponding backed bearing,
while in its other side the spindle has been represented with the improvements introduced
in the same one, that are refered to the independent ferrule and to the o-ring seal of
watertightness so that we can observe the structural difference that is between both.
In view of the above cited figure and in accordance with the adopted numbering,
we can observe as in the conventional manufacture of the spindle (1), the same one has
an addition of thickness (3) in relationship to the extreme of interlocked fixing to the drum
body (2), so that the internal base of the cited addition of thickness is backed to the
bearing (4), remaining the body (5) exterior and perimetric for materializing the
watertightness, Likewise, in relationship to the bearing (6) more external, it has an o-ring
seal (7) that closes the whole when the screw (10) is threaded by the base that is related
to it.
With this structure, if there is a water leak by the watertightness body (5), the
water enters to the zone of the bearing tracks, causing the deterioration of the same ones,
so that we have to change the components that are related with the spindle, that is the
bearings and the tank.
In the other hand, in the new execution with the improvements that are based on
the incorporation of an independent ferrule (8) without the necessity of an special
mechanization and the o-ring seal (9) on which the external extreme of the spindle (1)
presses, we obtain the perfect watertightness fixing of the whole, with a minimum cost and
also incorporating the joint body (11).
At the same time, the o-ring seal (9) is coming up in a perimetric way against a
circular projecting (13) of the own drum (2), so that thus it is perfectly placed.
Besides, the pulley (12) that receives the swiveling for the turn of the drum
spindle, is coming up against the back bearings (6), so that when the screw is threaded
(10), the pulley (12) forms an unitary whole with the gyratory elements, pressing on the o-ring
seal (9) that does a closing perfectly watertigth.
With this shape, the o-ring seal (9) does a watertigth closing, totally reliable, while
the independent ferrule (8) is centred by itself, having a perfect behaviour in all the
spindle whole.
This execution has a reduced economic cost, so that it is accesible for its
incorporation to whole range of apparatus models that can incorporate it.
Claims (2)
- IMPROVEMENTS INTRODUCED FOR THE DRUM SPINDLE OF AUTOMATIC WASHING MACHINES, being of the kind of those where the spindle remains interlocked to the washing machine drum and crosses the tank body so that for that, it has a pair of bearings that allow the spindle turn with regard to the tank and characterized in that the spindle (1), with a constant diameter, has an independent ferrule (8) that claspes to the same one in relationship to the extreme part of interlocked union to the drum body (2), which is placed in collaboration with the o-ring seal (9) between the cited drum body (2) and the internal bearing (6), while the pulley (12), which receives the swiveling for the turn of the drum spindle, remains running up directly against the back bearings (6).
- IMPROVEMENTS INTRODUCED FOR THE DRUM SPINDLE OF AUTOMATIC WASHING MACHINES, according to the first claim and characterized in that the ferrule (8) does not need neither any mechanization nor any special rectification since it is centred adequately by itself. Besides, the o-ring seal (9) blocks the water pass to the bearing tracks and it acts as the external stop on a circular projecting(13) of the drum.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9700352 | 1997-02-19 | ||
| ES9700352 | 1997-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0874078A2 true EP0874078A2 (en) | 1998-10-28 |
| EP0874078A3 EP0874078A3 (en) | 1999-03-03 |
Family
ID=8298320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98500050A Withdrawn EP0874078A3 (en) | 1997-02-19 | 1998-02-18 | Improvements introduced for the drum spindle of automatic washing machines |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0874078A3 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2230995A1 (en) * | 2003-06-13 | 2005-05-01 | Bsh Balay, S.A. | Locking system for use between shaft and drum of washing machine, has cross-sectional element located on end of shaft of washing machine and embedded in spangle for rotating drum and shaft |
| US20120006068A1 (en) * | 2008-12-30 | 2012-01-12 | Jung Tae Song | Laundry machine |
| EP2679715A1 (en) * | 2012-06-26 | 2014-01-01 | BSH Bosch und Siemens Hausgeräte GmbH | Water-conducting household appliance having a rotatable component and a bearing seal |
| US20140003754A1 (en) * | 2012-06-27 | 2014-01-02 | Bsh Bosch Und Siemens Hausgerate Gmbh | Water-conducting household appliance having a moveable component |
| US9003839B2 (en) | 2009-05-28 | 2015-04-14 | Lg Electronics Inc. | Laundry machine |
| US9404209B2 (en) | 2009-05-28 | 2016-08-02 | Lg Electronics Inc. | Laundry machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1460896A1 (en) * | 1965-08-12 | 1969-04-30 | Constructa Werke Gmbh | Washing drum bearing for a washing drum mounted overhung around a horizontal axis in the tub |
| FR2172720A5 (en) * | 1972-02-17 | 1973-09-28 | Skf Ind Trading & Dev | |
| DE4422853A1 (en) * | 1994-06-30 | 1996-01-04 | Miele & Cie | Bearing seal for radial rolling bearing |
-
1998
- 1998-02-18 EP EP98500050A patent/EP0874078A3/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1460896A1 (en) * | 1965-08-12 | 1969-04-30 | Constructa Werke Gmbh | Washing drum bearing for a washing drum mounted overhung around a horizontal axis in the tub |
| FR2172720A5 (en) * | 1972-02-17 | 1973-09-28 | Skf Ind Trading & Dev | |
| DE4422853A1 (en) * | 1994-06-30 | 1996-01-04 | Miele & Cie | Bearing seal for radial rolling bearing |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2230995A1 (en) * | 2003-06-13 | 2005-05-01 | Bsh Balay, S.A. | Locking system for use between shaft and drum of washing machine, has cross-sectional element located on end of shaft of washing machine and embedded in spangle for rotating drum and shaft |
| US20120006068A1 (en) * | 2008-12-30 | 2012-01-12 | Jung Tae Song | Laundry machine |
| US9187857B2 (en) * | 2008-12-30 | 2015-11-17 | Lg Electronics Inc. | Laundry machine |
| US9003839B2 (en) | 2009-05-28 | 2015-04-14 | Lg Electronics Inc. | Laundry machine |
| US9404209B2 (en) | 2009-05-28 | 2016-08-02 | Lg Electronics Inc. | Laundry machine |
| EP2679715A1 (en) * | 2012-06-26 | 2014-01-01 | BSH Bosch und Siemens Hausgeräte GmbH | Water-conducting household appliance having a rotatable component and a bearing seal |
| US9309615B2 (en) | 2012-06-26 | 2016-04-12 | BSH Hausgeräte GmbH | Water-conducting household appliance having a rotatable component |
| US20140003754A1 (en) * | 2012-06-27 | 2014-01-02 | Bsh Bosch Und Siemens Hausgerate Gmbh | Water-conducting household appliance having a moveable component |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0874078A3 (en) | 1999-03-03 |
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