EP0802273B1 - Sèche linge - Google Patents

Sèche linge Download PDF

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Publication number
EP0802273B1
EP0802273B1 EP97103521A EP97103521A EP0802273B1 EP 0802273 B1 EP0802273 B1 EP 0802273B1 EP 97103521 A EP97103521 A EP 97103521A EP 97103521 A EP97103521 A EP 97103521A EP 0802273 B1 EP0802273 B1 EP 0802273B1
Authority
EP
European Patent Office
Prior art keywords
hollow axle
bearing
roller
engagement
washing dryer
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.)
Expired - Lifetime
Application number
EP97103521A
Other languages
German (de)
English (en)
Other versions
EP0802273A2 (fr
EP0802273A3 (fr
Inventor
Michael c/o Whirlpool Europe s.r.l. Frank
Horst c/o Whirlpool Europe s.r.l. Sperling
Andreas c/o Whirlpool Europe s.r.l. Bollmann
Dietrich c/o Whirlpool Europe s.r.l. Bernes
Keith c/o Whirlpool Europe s.r.l. Cass
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Whirlpool Corp filed Critical Whirlpool Corp
Publication of EP0802273A2 publication Critical patent/EP0802273A2/fr
Publication of EP0802273A3 publication Critical patent/EP0802273A3/fr
Application granted granted Critical
Publication of EP0802273B1 publication Critical patent/EP0802273B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D06F58/06—Mountings for the rotating drums

Definitions

  • the invention relates to a washing dryer with a drum which is rotatably mounted and which may be rotated, which is additionally guided in the vicinity of the intake side by means of rollers which are supported on the drum shell and which are rotatably mounted by means of bearing axes in a casing portion surrounding the intake opening.
  • a washing treatment machine of this type is known from CH-PS 429 644 and US-A-4 754 556.
  • this known washing treatment machines the bearing and lubrication of the roller presents considerable difficulty.
  • the bearing axis in the form of a rotary part, is extremely expensive to manufacture and requires a considerable outlay on assembly for securing the bearing axis on the casing portion and for securing the roller axially on the bearing axis.
  • the purpose of the invention in a washing dryer of the type already mentioned, is to improve the bearing for the roller supporting the drum on the intake side in such a way that simple assembly and a type of permanent lubrication of the bearing is achieved with simple parts.
  • the bearing axle is in the form of a hollow axle which is C-shaped in cross-section, and into which there is inserted in the vicinity of the bearing bore of the roller an oil-saturated felt block, in that the felt block projects out of the hollow axle and is resiliently supported on the bearing bore of the roller, in that the roller is positioned axially on the hollow axle by means of two securing members, and in that the securing members are provided with retaining projections, which project through apertures in the hollow axle, into said axle, and axially secure the felt block.
  • the roller may be axially positioned on the hollow axle by means of two securing members.
  • the oil-saturated felt block inserted into the hollow axle is at the same time axially secured, so that it retains its position relative to the bearing bore of the roller and permanently lubricates it.
  • the elastic property of the felt block is utilised in such a way that a compensation for tolerance takes place.
  • the felt block prevents dirt particles from penetrating into the bearing and can also bind said particles. In this way a type of permanent lubrication is achieved.
  • the securing members are arcuate in form and provided on the inner sides facing one another of their legs with engagement projections, which engage resiliently in engagement apertures facing one another of the hollow axle, so that they may be rapidly and simply engaged on the hollow axle.
  • the retaining projection is introduced into the hollow axle and secures the felt block axially.
  • the securing members abut closely against the outer contour of the hollow axle.
  • the retaining projections and engagement projections of these securing members, as well as the apertures and the engagement apertures of the hollow axle have rectangular cross-sections co-ordinated with one another.
  • the free longitudinal edges of the hollow axle merge into edges aligned towards one another and lying in one plane, then sharp edges entailing a risk of injury during assembly are avoided.
  • these edges reinforce the hollow axle and also the hollow axle may be non-rotatably secured in a receiving means of a bearing bush adapted to the non-round outer contour.
  • the hollow axle and the securing members extend over an angular range of more than 180°.
  • the hollow axle in order to secure the hollow axle on the casing portion, is provided on the end facing away from the roller with engagement apertures into which engagement members of a bearing bush, accommodating the hollow axle, of a bearing flange of the casing portion resiliently engage.
  • the securing member with the retaining projection and the engagement projections, is formed as a one-piece plastics injection moulded part, while the hollow axle with all its members is produced as a hardened stamped and shaped part.
  • FIG. 1 shows, there is located on the intake side of the drum 10 a casing portion 11, which in a known way is used for articulating the doors and for inserting a lint screen. In addition, it has a portion of the air duct for the process air circuit.
  • the present case involves the rotary bearing or roller 15, which is supported on a running surface 14 on the shell surface of the drum 10.
  • the roller 15 is mounted on a bearing flange 12 of the casing portion 11, which surrounds the intake opening of the drum 10.
  • the bearing of the drum 10 on the opposite end face and the drive means for its rotary movement are not shown in Figure 1, as they are of no importance for the present invention.
  • the roller 15 carries a rubber tyre 16 and is supported thereby on the running surface 14 of the drum shell.
  • the bearing flange 12 is integrally moulded on the casing portion 11 and has a bearing bush 13, into which the bearing axle of the roller is inserted.
  • the bearing axle for the roller 15 is in the form of a hollow axle 20 with a C-shaped cross-section.
  • the hollow axle 20 is provided with rims 21 and 22 aligned towards one another and lying in one plane.
  • pairs of mutually-opposed engagement apertures 23 and 24 are provided in the hollow axis, and which for example have a rectangular cross-section.
  • a securing member 30 may be resiliently engaged with engagement projections 31 on the inner sides of its legs into the engagement apertures 23 and 24.
  • the retaining projection 32 of the securing member 30 is introduced into the hollow axle 20 through the aperture 26 and serves as a stop for the felt block 40.
  • the hollow axle with the inwardly-rounded rims 21 and 22 has a non-rounded outer contour. If the bearing bush 13 of the bearing flange 12 is adapted with the receiving means to this non-rounded contour of the hollow axle 20, then the introduced hollow axle 20 is non-rotatably secured in the bearing bush 13.
  • the end of the hollow axle 20 is thrust into the bearing bore 17 of the roller 15.
  • the end of the hollow axle 20 projecting on the opposite side out of the bearing bore 17 is positioned in the other axial direction with the second securing member 30.
  • the engagement projections 31 engage in the engagement apertures 23 of the hollow axle 20, and the retaining projection 32 of the securing member 30, after passing through an aperture 26 in the hollow axle 20, secures the felt block 40 in the other axial direction.
  • the oil-saturated felt block 40 projects out of the hollow axle 20 and is resiliently supported on the bearing bore 17 of the roller 15, as can be seen from the assembled condition of roller 15 and hollow axle 20 shown in Figure 4.
  • the hollow axle 20 On its free end, the hollow axle 20 carries a further pair of engagement apertures 25, into which engagement members 18 of the bearing bush 13 engage, when the hollow axle 20 is introduced with the roller 15 in the correct angular position, as the cross-section in Figure 5 shows.
  • the roller 15 is clearly axially positioned between the two securing members 30 and the retaining projections 32 of the same secure the felt block 40 in such a way that it lies permanently in the bearing bore 17 of the roller 15.
  • the securing members 13 in the central region are reinforced with the retaining projection 32 as an axial stop 33; they are arcuate in shape, so that they abut closely on the periphery of the hollow axle 20.
  • the hollow axle 20 and the securing member 30 extend over an angular range of more than 180°, yet leave a sufficiently wide slot for the introduction of the felt block 40.
  • the engagement projections 31 and the retaining projections 32 are rectangular in cross-section, and co-ordinated with the engagement apertures 22 and 23 and the apertures 26 in the hollow axle 20, so that clear resilient engagement and a good hold of the securing members 30 on the hollow axle 20 is achieved.
  • the securing member 30, with the engagement projections 31, the retaining projection 32 and the axial stop 33 are produced as a one-piece plastics injection moulded part.
  • the hollow axle 20 is formed from a hardened stamped and shaped part.
  • the oil-saturated felt block 40 provides a type of permanent lubrication for the bearing of the roller 15 on the hollow axle 20.
  • the felt block 40 also keeps dirt particles away from the bearing, and can also bind them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • General Details Of Gearings (AREA)
  • Support Of The Bearing (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Claims (8)

  1. Sécheur de lavage ayant un tambour monté afin qu'il puisse tourner et qui peut être entraíné en rotation, qui est en outre guidé au voisinage du côté d'admission par des rouleaux (15) qui sont supportés sur l'enveloppe (10) du tambour et qui sont montés afin qu'ils puissent tourner sur des axes de palier dans une partie de boítier (11) entourant l'ouverture d'admission,
       caractérisé    en ce que l'axe de palier est sous forme d'un axe creux (20) ayant une section en C et dans lequel est inséré, au voisinage du trou (17) de palier du rouleau (15), un bloc de feutre (40) saturé en huile,
       en ce que le bloc de feutre (40) dépasse de l'axe creux (20) et est supporté élastiquement dans le trou de palier (17) du rouleau (15), en ce que le rouleau (15) est positionné axialement sur l'axe creux (30) par deux organes de fixation (30), et en ce que les organes de fixation (30) ont des saillies de retenue (32) qui dépassent par des orifices (26) de l'axe creux (20), dans l'axe et fixent axialement le bloc de feutre (40).
  2. Sécheur de lavage selon la revendication 1, caractérisé en ce que les organes de fixation (30) ont une forme courbe et comportent, aux faces internes en regard de leurs branches, des saillies de coopération (31) qui coopèrent élastiquement avec des orifices de coopération (23 ou 24) opposés mutuellement et formés dans l'axe creux (20).
  3. Sécheur de lavage selon la revendication 1 ou 2, caractérisé en ce que les saillies de retenue (32) et les saillies de coopération (31) des organes de fixation (30), et les orifices (26) et les orifices de coopération (23, 24) de l'axe creux (20) ont des sections rectangulaires qui se correspondent.
  4. Sécheur de lavage selon l'une des revendications 1 à 3, caractérisé en ce que les bords longitudinaux libres de l'axe creux (20) rejoignent des rebords (21, 22) alignés l'un vers l'autre et se trouvant dans un même plan, et en ce que l'axe creux (20) est fixé par son profil externe non circulaire dans un manchon de palier (13) afin qu'il ne puisse pas tourner, le manchon de palier ayant un orifice correspondant au profil externe non circulaire.
  5. Sécheur de lavage selon l'une des revendications 1 à 4, caractérisé en ce que l'axe creux (20) et les organes de fixation (30) s'étendent sur une plage angulaire supérieure à 180°.
  6. Sécheur de lavage selon l'une des revendications 1 à 5, caractérisé en ce que l'axe creux (20) comporte, à l'extrémité distante du rouleau (15), des orifices de coopération (25) avec lesquels coopèrent élastiquement des organes de coopération (18) d'un manchon de palier (13) qui loge l'axe creux (20) sur un flasque de support (12) de la partie de boítier (11).
  7. Sécheur de lavage selon l'une des revendications 1 à 6, caractérisé en ce que l'organe de fixation (30), avec la saillie de retenue (32) et la saillie de coopération (31), est produit sous forme d'une pièce de matière plastique moulée par injection en une seule pièce.
  8. Sécheur de lavage selon l'une des revendications 1 à 7, caractérisé en ce que l'axe creux (20) est sous forme d'une pièce emboutie et mise en forme trempée.
EP97103521A 1996-04-20 1997-03-04 Sèche linge Expired - Lifetime EP0802273B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19615822 1996-04-20
DE19615822A DE19615822C1 (de) 1996-04-20 1996-04-20 Wäschetrockner

Publications (3)

Publication Number Publication Date
EP0802273A2 EP0802273A2 (fr) 1997-10-22
EP0802273A3 EP0802273A3 (fr) 1998-07-08
EP0802273B1 true EP0802273B1 (fr) 2002-06-05

Family

ID=7791965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97103521A Expired - Lifetime EP0802273B1 (fr) 1996-04-20 1997-03-04 Sèche linge

Country Status (2)

Country Link
EP (1) EP0802273B1 (fr)
DE (2) DE19615822C1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10253113A1 (de) * 2002-11-13 2004-05-27 Herbert Kannegiesser Gmbh Trockner, insbesondere Wäschetrockner
US7140123B2 (en) * 2003-11-07 2006-11-28 Samsung Electronics Co., Ltd. Roller and clothes drying apparatus provided with the same
ATE374854T1 (de) * 2003-12-12 2007-10-15 Miele & Cie Wäschetrockner mit einer rollenlagerung
PL2476795T3 (pl) * 2008-03-19 2020-05-18 Electrolux Home Products Corporation N.V. Suszarka bębnowa
WO2009132969A1 (fr) * 2008-05-02 2009-11-05 Arcelik Anonim Sirketi Séchoir
ES2601904T3 (es) * 2008-12-29 2017-02-16 Arçelik Anonim Sirketi Secadora que comprende un tambor cuyo soporte frontal se realiza mediante rodillos
EP2379795B1 (fr) * 2008-12-30 2012-11-28 Arçelik Anonim Sirketi Rouleau de support de tambour de séchoir
IT1396409B1 (it) * 2009-10-30 2012-11-19 Indesit Co Spa Macchina per l'asciugatura di panni.
US8756829B2 (en) 2010-06-09 2014-06-24 Whirlpool Corporation Roller assembly for a laundry treating appliance

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769246A (en) * 1953-05-06 1956-11-06 Murray Corp Clothes drier
US2823962A (en) * 1957-04-19 1958-02-18 Gen Electric Bearing assembly and clothes dryer equipped therewith
CH429644A (de) * 1962-02-01 1967-02-15 Siemens Elektrogeraete Gmbh Nach dem Trommelprinzip arbeitende Wäschebehandlungsmaschine
US3947076A (en) * 1974-12-19 1976-03-30 Illinois Tool Works Inc. Lubricating bearing and bracket mounting
US4754556A (en) * 1986-08-18 1988-07-05 Whirlpool Corporation Front bulkhead mounting for a dryer

Also Published As

Publication number Publication date
DE69712974D1 (de) 2002-07-11
DE69712974T2 (de) 2002-11-07
EP0802273A2 (fr) 1997-10-22
DE19615822C1 (de) 1997-05-07
EP0802273A3 (fr) 1998-07-08

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