EP1094142B1 - Dispositif pour la suspension d'une cuve de machine à laver - Google Patents

Dispositif pour la suspension d'une cuve de machine à laver Download PDF

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Publication number
EP1094142B1
EP1094142B1 EP00203477A EP00203477A EP1094142B1 EP 1094142 B1 EP1094142 B1 EP 1094142B1 EP 00203477 A EP00203477 A EP 00203477A EP 00203477 A EP00203477 A EP 00203477A EP 1094142 B1 EP1094142 B1 EP 1094142B1
Authority
EP
European Patent Office
Prior art keywords
suspension
washing tub
washing
washing machine
cabinet
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
EP00203477A
Other languages
German (de)
English (en)
Other versions
EP1094142A1 (fr
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy 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
Application filed by Candy SpA filed Critical Candy SpA
Publication of EP1094142A1 publication Critical patent/EP1094142A1/fr
Application granted granted Critical
Publication of EP1094142B1 publication Critical patent/EP1094142B1/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
    • 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

Definitions

  • the present invention refers to a device and apparatus for the suspension of a washing tub of a laundry washing machine.
  • suspension means that allow it to remain suspended inside the washing machine cabinet.
  • Such suspension means not only must support the washing tub elastically but they must be able to absorb the vibrations due to the rotary motion of the drum inside it, thus maintaining the tub in position.
  • a non-uniform rotation of the washing drum that violently stresses the washing tub can occur.
  • the suspension means must effectively oppose this non-uniform rotation and bring the washing tub back in position when the rotation of the drum stops.
  • Such suspension means are usually of two types, that is helicoidal springs provided with hooks for the anchorage of the tub, that are used especially to connect the washing tub with the top plane of the washing machine cabinet, or telescopic dampers, that are used especially to connect the washing tub with the bottom plane of the cabinet of the washing machine.
  • DE 1938536 discloses an apparatus for the suspension of a washing tub inside a cabinet of a laundry washing machine; such apparatus comprises a telescopic damper provided with a helicoidal spring arranged around it. Said damper is allocated in the lower part of the cabinet and it connects the bottom of the cabinet with the lower part of the washing tub.
  • EP 0603809 discloses a telescopic damper for an oscillating machine which has an external tubular part and an internal tubular part capable of sliding inside the external tubular part.
  • the tubular parts are provided with terminal heads having respective holes for connecting, for example, the damper with the oscillating machine and with a cabinet storing it.
  • object of the present invention is to provide a washing machine with a device and an apparatus for the suspension of a washing tub of the laundry washing machine that is capable to carry out both the function of elastic suspension and the one of shock absorber by using a single device.
  • a single suspension device is utilisable in order to elastically suspend and in a balanced way and at the same time to cushion the vibrations of a washing tub of a laundry washing machine.
  • a suspension device 1 as part of the present invention is shown.
  • Such device 1 is made up of a telescopic damper generally indicated by 2 that is wound up by a helicoidal spring 3.
  • the telescopic damper 2 is made up of an external tubular part 4 and an internal tubular part 5 that is capable to slide in the external tubular part 4.
  • the free ends of both tubular parts 4 and 5 are each connected with a circular head 6 that is provided with an internal hole 7 for the anchorage of the suspension device 1 and a bush 8, visible in figure 2, is inserted on one of such holes 7 in order to allow the possible sliding of the device 1 on appropriate guides.
  • the spring 3 is to the heads 6 by means of extensions 9 of its ends that partially surround each head 6.
  • a front load laundry washing machine that is globally indicated by 10 comprises a cabinet 11 in which a washing tub 12 is suspended centrally by means of the suspension devices 1.
  • the washing tub 12 contains a cylindrical drum 13, with axis perpendicular to the back wall 14 of the cabinet 11, destined to contain the laundry to be washed, which is turningly mounted in the same tub.
  • the washing tub 12 is suspended inside the cabinet by means of lower and upper pairs of suspension devices 1.
  • the suspension devices belonging to the upper pair are anchored in 15 to the top part of the washing tub 12 by hooking of the same with the heads 6 integral with the internal tubular parts 5, while the heads 6 integral with the external tubular parts 4 and provided with bushes 8 are slidingly coupled with upper supports 16 having perpendicular ends hooked to the upper plane 18 of the cabinet 11.
  • the suspension devices belonging to the lower pair are connected with the washing tub 12 too, in its bottom part, by hooking at in 15 of the heads 6 integral with the internal tubular parts 5, whereas the heads 6 integral with the external tubular parts 4 and provided with bushes 8 are slidingly coupled with bottom supports 17 having perpendicular ends are hooked to the bottom plane 19 of the cabinet 11.
  • the telescopic dampers 2 of the devices 1 have the purpose riot only to hold the washing tub 12 in suspension but to make the system consisting of the washing tub 12 and of the devices 1 auto-balancing, with suspension in traction, damping and position.
  • the telescopic dampers also have the task to curb the reaction of the spring 3 in the case of extension or compression of the same spring.
  • the elastic deformation and calibration loads both of the helicoidal spring 3 and of the damper 2 must be set as a dynamic function of the required oscillation while considering the volume inside the cabinet 11 and the weight of the washing tub 12. For example it is possible to use either two lower and upper pairs of devices 1 with an elastic capacity comprised between 40 % and 70% of the weight of the washing tub 12 or several devices 1 by re-proportioning the supporting and action capacity of the system under particular conditions of weight or in the case of the use of assisted electronics for the programming of the centrifugal drying stage.
  • Such suspension devices can also be used in top load washing machines, by positioning them in suitable manner inside the structure of the washing machine cabinet.
  • Such suspension devices allow the construction of a new apparatus for the suspension of a washing tub of a washing machine.
  • An apparatus for the suspension of a washing tub inside a washing machine comprises suspension devices that are made up of telescopic dampers 2 with terminal heads 6 provided with respective holes 7 for the hooking to the cabinet 11 of the washing machine 10 and provided with elastic means 3, for example helicoidal springs, that are wound around the telescopic dampers 2 and hooked to said terminal heads 6.
  • suspension devices 1 are arranged in such a way as to suspend the washing tub 12 of the washing machine 10 in a balanced manner.
  • An apparatus of the type above described is easily assemblable since it utilises the same suspension devices in the lower and upper parts of the washing machine.
  • Such apparatus can use different suspension devices inside the cabinet of the washing machine in order to suspend the washing tub in a balanced way.
  • the suspension devices previously described allow the construction of a new type of washing machine.
  • a washing machine comprising a washing tub 12 inside a cabinet 11 and suspension devices 1 of the washing tub 12.
  • the suspension devices 1 are made up of telescopic dampers 2 with terminal heads 6 provided with respective holes 7 for the hooking to the cabinet 11 of the washing machine 10 and provided with elastic means 3, for example helicoidal springs, that are wound around the telescopic dampers 2 and hooked to the terminal heads 6.
  • Such suspension devices 1 are arranged in a such a way so as to suspend the washing tub 12 of the washing machine 10 in a balanced manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Vibration Prevention Devices (AREA)

Claims (2)

  1. Lave-linge, comprenant une cuve de lavage (12) située à l'intérieur d'une enceinte (11) et des dispositifs de suspension (1) de ladite cuve de lavage (12), lesdits dispositifs de suspension (1) étant formés d'amortisseurs télescopiques (2) comportant des têtes d'extrémité (6) pourvues de trous respectifs (7) pour leur accrochage à l'enceinte (11) dudit lave-linge (10) et pourvues de moyens élastiques (3) qui sont enroulés autour desdits amortisseurs télescopiques (2) et sont accrochés auxdites tête d'extrémité (6), avec une paire de dispositifs de suspension (1) utilisés pour raccorder la partie inférieure de la cuve de lavage (12) au fond (18) de l'enceinte (11), caractérisé en ce qu'une autre paire de dispositifs de suspension est utilisée pour raccorder la partie supérieure de la cuve de lavage (12) à la partie supérieure (19) de l'enceinte (11) de manière à suspendre la cuve de lavage (11) dudit lave-linge (10) d'une manière équilibrée.
  2. Lave-linge selon la revendication 1, caractérisé en ce que lesdits moyens élastiques (3) sont formés d'un ressort hélicoïdal.
EP00203477A 1999-10-21 2000-10-06 Dispositif pour la suspension d'une cuve de machine à laver Expired - Lifetime EP1094142B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI992203 1999-10-21
IT1999MI002203A IT1314052B1 (it) 1999-10-21 1999-10-21 Dispositivo ed apparato per la sospensione di una vasca di lavaggio di una macchina lavabiancheria

Publications (2)

Publication Number Publication Date
EP1094142A1 EP1094142A1 (fr) 2001-04-25
EP1094142B1 true EP1094142B1 (fr) 2004-02-18

Family

ID=11383824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00203477A Expired - Lifetime EP1094142B1 (fr) 1999-10-21 2000-10-06 Dispositif pour la suspension d'une cuve de machine à laver

Country Status (4)

Country Link
EP (1) EP1094142B1 (fr)
DE (1) DE60008336T2 (fr)
ES (1) ES2214219T3 (fr)
IT (1) IT1314052B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2025797B1 (fr) * 2007-08-17 2012-10-03 Electrolux Home Products Corporation N.V. Lave-linge

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1938536A1 (de) * 1968-07-30 1970-02-05 Hoover Ltd Wasch- und/oder Schleudermaschine
DE3173865D1 (en) * 1980-06-23 1986-04-03 Hotpoint Ltd Oscillation damping arrangement
FR2605336B1 (fr) * 1986-10-17 1989-05-26 Philips Ind Commerciale Bras de suspension pour cuve de machine a laver le linge et machine a laver le linge ainsi equipee.
IT1264540B1 (it) * 1993-07-30 1996-10-02 Cima Comp It Molle Acciaio Ammortizzatore per macchine oscillanti
DE19816229A1 (de) * 1998-04-09 1999-10-14 Basf Ag Bewegungsgedämpftes Schwingungssystem

Also Published As

Publication number Publication date
DE60008336D1 (de) 2004-03-25
ITMI992203A0 (it) 1999-10-21
DE60008336T2 (de) 2004-12-02
ITMI992203A1 (it) 2001-04-21
EP1094142A1 (fr) 2001-04-25
IT1314052B1 (it) 2002-12-03
ES2214219T3 (es) 2004-09-16

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