EP2735633A1 - Waschmaschine für den Haushaltsgebrauch mit Stift zum Ankoppeln mindestens eines Feder-Dämpfer-Elements an einer oszillierenden Anordnung, und Stift dafür - Google Patents

Waschmaschine für den Haushaltsgebrauch mit Stift zum Ankoppeln mindestens eines Feder-Dämpfer-Elements an einer oszillierenden Anordnung, und Stift dafür Download PDF

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Publication number
EP2735633A1
EP2735633A1 EP13192810.3A EP13192810A EP2735633A1 EP 2735633 A1 EP2735633 A1 EP 2735633A1 EP 13192810 A EP13192810 A EP 13192810A EP 2735633 A1 EP2735633 A1 EP 2735633A1
Authority
EP
European Patent Office
Prior art keywords
pin
washing machine
laundry washing
shock
absorbing element
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.)
Withdrawn
Application number
EP13192810.3A
Other languages
English (en)
French (fr)
Inventor
Giovanni Sampiero
Marco Angelini
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 EMEA SpA
Original Assignee
Indesit Co SpA
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
Priority claimed from IT001010A external-priority patent/ITTO20121010A1/it
Priority claimed from IT001009A external-priority patent/ITTO20121009A1/it
Application filed by Indesit Co SpA filed Critical Indesit Co SpA
Publication of EP2735633A1 publication Critical patent/EP2735633A1/de
Withdrawn legal-status Critical Current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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • 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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis

Definitions

  • the present invention relates to a laundry washing machine for household use according to the preamble of claim 1.
  • the present invention further relates to a pin for coupling at least one shock-absorbing element to an oscillating assembly of a laundry washing machine for household use.
  • the invention applies to the field of laundry washing machines for household use; it must be pointed out that, for the purposes of the present invention, such definition may refer to washing machines, clothes dryers, washing/drying machines and any other type of machine suitable for treating textile items.
  • Said pin is usually made of plastic material and has elastic properties, so that it can be easily inserted into the pair of fins and into the bushing of said end of the shock-absorbing element, while at the same time ensuring an adequate locking between the pin itself and the shock-absorbing element.
  • laundry washing machine will encompass washing machines, clothes dryers, washing/drying machines and any other type of machine suitable for treating textile items.
  • Said oscillating assembly 3 comprises, in a known manner, a wash tub 3A within which a drum 3B is made to rotate.
  • the drum 3B is rotated about a first axis X; preferably, as can be seen in Fig. 1 , the first axis X of the drum 3B is horizontal or substantially horizontal. Said first axis X may be slightly inclined, e.g. at least partially raised towards a load opening 4 of the cabinet 2; this makes it easier for a user to load laundry items into the drum 3B. It is however clear that the drum 3B may also be positioned differently inside the wash tub 3A.
  • said upper mount 7S comprises:
  • said pin 10 is made of metallic material, in particular sheet steel.
  • the pin 10 is shaped like a substantially cylindrical tube; in particular, it comprises a cavity 11 delimited by a body 12 having a first end 10A and a second end 10B.
  • the particular provision of the pin 10 according to the present invention allows to substantially eliminate any mechanical and/or thermal stresses incurred by said pin 10, especially during the operation of the laundry washing machine 1; consequently, this provision will prevent the pin 10 from undergoing any permanent deformation.
  • the provision of the pin 10 according to the present invention allows to obtain optimal performance from the laundry washing machine 1, also regardless of the dimensions of the oscillating assembly 3 and of the total weight and/or load of said oscillating assembly 3, in particular during the operation of the laundry washing machine 1.
  • the pin 10 comprises a first protrusion 13 projecting from the body 12 of the pin 10, in particular said first protrusion 13 being positioned near the first end 10A of the pin 10. Said first protrusion 13 prevents the first end 10A of the pin 10 from passing in an undesired manner through the hole 30F of said at least one fin 30 and through the bushing 61B of said first end portion 61 of the shock-absorbing element 6; as a result, said first protrusion 13 prevents the pin 10 from coming out of the hole 30F and/or the bushing 61B, and also acts as an abutment element for the pin 10 against the surface of said at least one fin 30.
  • the pin 10 comprises a second protrusion 14 projecting from the body 12 of the pin 10, in particular said second protrusion 14 being positioned near the second end 10B of the pin 10.
  • the second protrusion 14 prevents the second end 10B of the pin 10 from passing in an undesired manner through the hole 30F of said at least one fin 30 and through the bushing 61B of said first end portion 61 of the shock-absorbing element 6; as a result, also the second protrusion 14 prevents the pin 10 from coming out of the hole 30F and/or the bushing 61B, and acts as an abutment element for the pin 10 against the surface of said at least one fin 30.
  • the pin 10 comprises a cut-out 15 (shown in Fig. 3 ) extending in the body 12, in particular in a main direction of extension substantially parallel to a second axis Y (shown by means of a dashed-dotted line in Fig. 3 ) of the pin 10; the cut-out 15 allows to increase the degree of flexibility and elasticity of the pin 10, so that it can be more easily inserted into the hole 30F of said at least one fin 30 and into the bushing 61B of said first end portion 61 of the shock-absorbing element 6.
  • the cut-out 15 is so formed as to join a first aperture A1 associated with the first end 10A of the pin 10 to a second aperture A2 associated with the second end 10B of the pin 10; this provision allows to make the pin 10 sufficiently flexible and elastic, so as to simplify the insertion thereof into the hole 30F and into the bushing 61B.
  • first protrusion 13 and/or second protrusion 14 allows to create a pin 10 which is so realized that, advantageously, it can only be removed from the hole 30F of said at least one fin 30 and from the bushing 61B of said first end portion 61 of the shock-absorbing element 6 following a compression action exerted on the body 12 of the pin 10 by a user; said compression action to be exerted on the body 12 is also facilitated by the cut-out 15 that extends in the body 12 of the pin 10.
  • said cut-out 15 has a curvilinear extension; in fact, the edges of said cut-out 15 have at least one notch 15A facing at least one substantially complementary convex portion 15B, in particular in the section comprised between the first protrusion 13 and the second protrusion 14; as can be seen in Fig. 3 , said at least one notch 15A and said at least one convex portion 15B have rounded profiles.
  • the laundry washing machine 1 is equipped with a suspension system that keeps the oscillating assembly 3 suspended inside the cabinet 2, said suspension system comprising at least one shock-absorbing element 6 coupled to the oscillating assembly 3 through an upper mount 7S.
  • the shock-absorbing element 6 is coupled to the cabinet 2 through a lower mount 7I.
  • said upper mount 7S comprises:
  • said pin 100 comprises a reinforcing element 200 made of metallic material.
  • Said reinforcing element 200 is shown in Fig. 5b and represented in Fig. 5c as a dashed component.
  • the metallic material of the reinforcing element 200 is spring steel, that is, steel which will elastically deform under load without undergoing any plastic deformation, i.e. steel having high fatigue strength.
  • Said reinforcing element 200 may be inserted into a cavity 110 of the pin 100.
  • said reinforcing element 200 may be associated with the pin 100 by moulding the plastic material of the pin 100 over the reinforcing element 200.
  • the reinforcing element 200 has a substantially annular shape, in particular said reinforcing element 200 being associated with the pin 100 in a manner such that its axis substantially corresponds to a second axis YY of the pin 100 (said second axis YY being shown in Figure 5b ).
  • the provision of the reinforcing element 200 according to the present invention allows to design said pin 100 in such a way as to obtain optimal performance from the laundry washing machine 1, also regardless of the dimensions of the oscillating assembly 3 and of the total weight and/or load of said oscillating assembly 3, in particular during the operation of the laundry washing machine 1.
  • the pin 100 has a body 120 which comprises the cavity 110 and which is so realized as to have increasing outer dimensions starting from a first end 100A up to a second end 100B.
  • the second end 100B of the pin 100 comprises a protrusion 130 projecting from the body 120 of the pin 100.
  • Said protrusion 130 prevents the second end 100B of the pin 100 from passing in an undesired manner through the hole 30F of said at least one fin 30 and through the bushing 61B of said first end portion 61 of the shock-absorbing element 6; as a result, said protrusion 130 prevents the pin 100 from coming out of the hole 30F and or the bushing 61B, and also acts as an abutment element for the pin 100 against the surface of said at least one fin 30.
  • said tooth 140 is positioned near the first end 100A of the pin 100. It is therefore apparent that the tooth 140 according to the present invention has been so conceived as to be able to flex and at least partially enter the cavity 110 of the pin 100 while inserting said pin 100 into the hole 30F of said at least one fin 30 and into the bushing 61B of said first end portion 61 of the shock-absorbing element 6.
  • the flexing of the tooth 140 is caused by contact occurring between the inclined surface 140C and the rise 140B and the inner surface of said hole 30F and of said bushing 61B; when said contact ends, the tooth 140 returns into its original position thanks to the elastic properties of the tang 140A.
  • the shape of the tooth 140 prevents the pin 100 from undesirably coming out of the hole 30F of said at least one fin 30 and the bushing 61B of said first end portion 61 of the shock-absorbing element 6; in fact, the rise 140B acts as an abutment element for the pin 100 against the surface of said at least one fin 30 when the pin 100 is inserted into the hole 30F of said at least one fin 30 and into the bushing 61B, since the pin 100 can only be removed following a pressure exerted by a user in order to flex the tooth 140 and cause it to at least partially enter the cavity 110 of the pin 100.
  • the pin 100 comprises a cut-out 150 (shown in Fig. 5c ) extending at least partially in the body 120, in particular substantially parallel to said second axis YY of the pin 100; the cut-out 150 provides a higher degree of flexibility and elasticity of the pin 100, so that it can be more easily inserted into the hole 30F of said at least one fin 30 and into the bushing 61B of said first end portion 61 of the shock-absorbing element 6.
  • said cut-out 150 preferably does not reach the first end 100A of the pin 100, the surface of which will be, as a result, continuous with respect to that of the body 120.
  • said cut-out 150 is positioned on the body 120 of the pin 100 on a side opposite to the tooth 140.
  • such advantages include the fact that the particular realization of the pin 10 according to the first embodiment (shown in Figures 2a to 3 ) of the present invention allows to substantially eliminate any mechanical and/or thermal stresses incurred by said pin 10, especially during the operation of the laundry washing machine 1; consequently, such a realization will prevent the pin 10 from undergoing any permanent deformation.
  • the provision of the pin 10 according to the first embodiment of the present invention ensures an optimal and lasting locking between it and the shock-absorbing element 6, thereby avoiding a possible decrease in the performance of the washing machine 1 which might occur should the pin 10 undergo deformation and/or come off.
  • the peculiar realization of the pin 10 in accordance with the first embodiment of present invention allows to obtain optimal performance from the laundry washing machine 1, also regardless of the dimensions of the oscillating assembly 3 and of the total weight and/or load of said oscillating assembly 3, in particular during the operation of the laundry washing machine 1.
  • such advantages include the fact that the special provision of the reinforcing element 200 allows to realize the pin 100 in such a way as to substantially eliminate any mechanical and/or thermal stresses incurred by said pin 100, especially during the operation of the laundry washing machine 1; consequently, such a provision will prevent the pin 100 from undergoing any permanent deformation.
  • the reinforcing element 200 ensures an optimal and lasting locking between the pin 100 and the shock-absorbing element 6, thereby avoiding a possible decrease in the performance of the laundry washing machine 1 which might occur should the pin 100 undergo deformation and/or come off.
  • the pin 10, 100 is realized in such a way that, advantageously, it can only be removed from the hole 30F of said at least one fin 30 and from the bushing 61B of said first end portion 61 of the shock-absorbing element 6 upon definite actions carried out by a user; in fact, the particular shape of the pin 10, 100 will prevent it from undesirably coming out of the hole 30F and the bushing 61B.
  • the pin 10, 100 according to the present invention may also be used for coupling the shock-absorbing element 6 to the cabinet 2 through the lower mount 7I.
  • the pin 10, 100 can be inserted into a second hole 300F (shown in Figures 2a and 4a ) of at least one second fin 300 (also shown in Figures 2a and 4a ) connected to the cabinet 2, and into a bushing (not shown in the drawings) of a second end portion 62 of the shock-absorbing element 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP13192810.3A 2012-11-20 2013-11-14 Waschmaschine für den Haushaltsgebrauch mit Stift zum Ankoppeln mindestens eines Feder-Dämpfer-Elements an einer oszillierenden Anordnung, und Stift dafür Withdrawn EP2735633A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001010A ITTO20121010A1 (it) 2012-11-20 2012-11-20 Macchina lavabiancheria di uso domestico comprendente una spina per l'accoppiamento di almeno un elemento ammortizzatore ad un gruppo oscillante, e relativa spina.
IT001009A ITTO20121009A1 (it) 2012-11-20 2012-11-20 Macchina lavabiancheria di uso domestico comprendente una spina per l'accoppiamento di almeno un elemento ammortizzatore ad un gruppo oscillante, e relativa spina.

Publications (1)

Publication Number Publication Date
EP2735633A1 true EP2735633A1 (de) 2014-05-28

Family

ID=49554159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13192810.3A Withdrawn EP2735633A1 (de) 2012-11-20 2013-11-14 Waschmaschine für den Haushaltsgebrauch mit Stift zum Ankoppeln mindestens eines Feder-Dämpfer-Elements an einer oszillierenden Anordnung, und Stift dafür

Country Status (1)

Country Link
EP (1) EP2735633A1 (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3511125A1 (de) 1984-03-27 1985-10-24 Daido Metal Co. Ltd., Nagoya Wickelbuchse
WO1998026197A1 (en) 1996-12-09 1998-06-18 C.I.M.A. - Compagnia Italiana Molle Acciaio S.P.A. Device for anchoring the basket damper in a washing machine or the like
DE19725706A1 (de) * 1997-06-18 1998-12-24 Suspa Compart Ag Befestigungseinrichtung zur Befestigung eines Schwingungsdämpfers einer Waschmaschine
US20050183472A1 (en) * 2004-02-25 2005-08-25 Choi Kang M. Damper assembly and washing machine using the same
DE102005008239A1 (de) 2004-03-03 2005-09-15 Suspa Holding Gmbh Anlenk-Vorrichtung zur Anlenkung eines Schwingungsdämpfers an einem Waschaggregat und/oder einem Maschinengestell einer Waschmaschine
EP1980661A1 (de) * 2007-04-12 2008-10-15 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Dorn und Hülse zur Dämpfung
EP2093319A2 (de) * 2008-02-22 2009-08-26 BSH Bosch und Siemens Hausgeräte GmbH Auflageranordnung für ein Haushaltsgerät
EP2348149A1 (de) * 2010-01-25 2011-07-27 Bonferraro S.p.A. Stift zur Montage der Trommeldämpfer einer Waschmaschine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3511125A1 (de) 1984-03-27 1985-10-24 Daido Metal Co. Ltd., Nagoya Wickelbuchse
WO1998026197A1 (en) 1996-12-09 1998-06-18 C.I.M.A. - Compagnia Italiana Molle Acciaio S.P.A. Device for anchoring the basket damper in a washing machine or the like
DE19725706A1 (de) * 1997-06-18 1998-12-24 Suspa Compart Ag Befestigungseinrichtung zur Befestigung eines Schwingungsdämpfers einer Waschmaschine
US20050183472A1 (en) * 2004-02-25 2005-08-25 Choi Kang M. Damper assembly and washing machine using the same
DE102005008239A1 (de) 2004-03-03 2005-09-15 Suspa Holding Gmbh Anlenk-Vorrichtung zur Anlenkung eines Schwingungsdämpfers an einem Waschaggregat und/oder einem Maschinengestell einer Waschmaschine
EP1980661A1 (de) * 2007-04-12 2008-10-15 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Dorn und Hülse zur Dämpfung
EP2093319A2 (de) * 2008-02-22 2009-08-26 BSH Bosch und Siemens Hausgeräte GmbH Auflageranordnung für ein Haushaltsgerät
EP2348149A1 (de) * 2010-01-25 2011-07-27 Bonferraro S.p.A. Stift zur Montage der Trommeldämpfer einer Waschmaschine

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