EP1111116A1 - Machine à laver avec système amortisseur - Google Patents

Machine à laver avec système amortisseur Download PDF

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Publication number
EP1111116A1
EP1111116A1 EP00125555A EP00125555A EP1111116A1 EP 1111116 A1 EP1111116 A1 EP 1111116A1 EP 00125555 A EP00125555 A EP 00125555A EP 00125555 A EP00125555 A EP 00125555A EP 1111116 A1 EP1111116 A1 EP 1111116A1
Authority
EP
European Patent Office
Prior art keywords
washing unit
base frame
damping device
washing machine
plastic joint
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Withdrawn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
EP00125555A
Other languages
German (de)
English (en)
Inventor
Christian Beier
Sandra Hadamitzky
Wilhelm Sebeikat
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP1111116A1 publication Critical patent/EP1111116A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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 invention relates to a drum washing machine with a damping device, preferably horizontal axis of rotation, its washing unit via springs and vibration dampers is swingably mounted in the housing.
  • Such a drum washing machine is known from DE 32 37 759, in which the washing unit on both sides of a vertical plane with struts passing through the axis of rotation is supported on a base plate. These struts are on the one hand on the base plate and on the other hand with their respective plunger on the washing unit by means of a plug connection articulated.
  • the shock absorber In order to enable inclinations of the shock absorber to a limited extent, it is used with a coaxially arranged peg in one in the base plate or washing unit all around supported vibration damping element made of an elastomer material. at With this measure, inclination movements should have sufficient restoring forces on the Act on the shock absorber. Due to the asymmetrical design of the vibration damping elements and the bushings surrounding them are attempted, a directional dependence of the restoring forces to reach.
  • From DE 92 03 397 U1 is an arrangement for the oscillatory mounting of a washing container on the bottom of a washing machine with the help of shock-absorbing struts known in which the free ends of the shock absorber, each with a plastic molded pin are provided in a mounting opening of the bottom of the device or the washing container Rotation behind protruding edges can be locked.
  • the edge area surrounding the assembly openings is on both the floor and the wash container side
  • a rubber intermediate layer is provided as a buffer, which also corresponds to the inclination the struts are wedge-shaped. These are intended exclusively for damping Intermediate layers cause little or no restoring forces on the shock absorber.
  • DE 28 15 596 is a screw fastening for hanging washing machine containers known in which an elastic elastomeric ring between a nut and a Clamping surface is clamped and thus to ensure a certain degree of freedom.
  • a modification of the embodiment is disclosed in which the strut with an elastomeric O-ring in two concentric ring grooves in a mounting bush, or are incorporated in the shock absorber.
  • the invention thus presents the problem of a damping device of the generic type To create a type that is easy to manufacture and assemble, with good damping properties with which defined restoring forces are transferred to the washing unit can and ensures improved acoustic decoupling.
  • the advantages which can be achieved with the invention consist of Injection molding of the plastic joints and an easy assembly of the struts by the Screw into the holes in the base frame and washing unit in the Possibility, through suitable shaping or material arrangement or combination Damping property or the stiffness of the damping device in the main axes of the Adjust washing unit.
  • the plastic joint is an optimal one acoustic decoupling of the washing unit from the frame achieved, which leads to a reduced Noise leads.
  • the damping device can by injection molding the plastic joint while at the same time Pouring threaded studs and components of the vibration damper easily and can be produced inexpensively. This eliminates further assembly costs.
  • the assembly in the drum washing machine is easy to do because the Damping device only by screwing the threaded pin into the intended one Hole is screwed into the washing unit or base frame. Through the screw connection higher tensile forces can also be safely transmitted in the axial direction.
  • the damping element can be designed as a friction as well as a liquid damper his.
  • the simple screw connection allows both the washing unit and the base frame a hole with a thread can be drilled at a suitable point without the need for time-consuming Construction elements are necessary.
  • Certain versions of drum washing machines have a leakage monitoring system include that is activated by a float in a floor pan and a suitable one Place for fastening the damping device in the area of this floor pan must these are sealed against water loss.
  • a particularly advantageous development of The invention provides for the plastic joint to be provided with an integrated sealing surface that the hole drilled in the floor pan to accommodate the threaded pin seals is.
  • the plastic joint on it Contact surface with the floor pan with a shaped element, for. B. to provide knobs in engages a molded element stamped in the floor pan.
  • the stiffness or damping properties can be selected by choosing a suitable shape of the plastic joint can be adapted to different variants. So change Openings made in the direction of an axis retain the originally isotropic properties a rotationally symmetrical plastic joint.
  • a drum washing machine has a washing unit (1), which has vibration dampers (2) opposite a base frame (3) or a base plate standing on the floor is supported.
  • the washing unit (1) has a tub, in which one of the tubs flanged drive motor driven around a horizontal axis of rotation washing drum is arranged.
  • the input and removal of laundry in or from the washing drum takes place through a door arranged on an end face of the tub.
  • the transfer the drive from the drive motor to the washing drum is carried out in the usual manner a V-belt drive (not shown).
  • the vibration damper (2) have in the embodiment shown in Fig. 3 as a friction damper each have a cylindrical tube (4), in the coaxial one also tubular Ram (5) is slidably guided.
  • the inner end of the cylinder (4) is ring-shaped Provided recess (6) in which an annular friction element (7) is arranged.
  • the Vibration dampers (2) can also be designed as hydraulic dampers (not shown) his.
  • the base plate For each vibration damper (2) there is a hole with a thread (14) on the base plate introduced, in which the vibration damper (2) is screwed. Associated with the bore (14) the base plate has a bore (15) in which a knob (16) of the plastic joint (8) intervenes and thus clearly defines its orientation.
  • each vibration damper (2) there is also a hole with a thread on the tub (14) attached, in which the vibration damper (2) is screwed.
  • the orientation is as described above by a shaped element.
  • the plastic joints (8, 11) have a rotationally symmetrical cross section in the form of a spherical cap and have in the form shown several openings (17), which in the installed position parallel to the axis of rotation the washing machine drum are arranged.
  • the on the base frame *** or on The surface of the washing unit (18, 19) is designed such that it bores (14, 15) seals.
  • the bores (14, 15) can thus also be used as a collecting container floor pan designed for a leakage system.
  • FIGS. 2 and 3 represent further possibilities, the rigidity and To influence the damping properties of the plastic joint (8, 11) depending on the direction.
  • Fig. 2 shows the plastic joint (20) with a central, perpendicular to the longitudinal axis (21) of the Vibration damper (2) arranged opening (22), the properties of the Joint (20) is changed by varying the diameter of the opening (22). By the round shape prevents a notch effect in the plastic.
  • Fig. 3 shows a further advantageous embodiment of the invention, wherein several small Openings (23) with parallel axes perpendicular to the longitudinal axis (21) of the vibration damper (2) are arranged in mirror symmetry and by their number and diameter the property of the joint is affected. Due to the staggered arrangement of the openings (23) becomes the load-bearing cross-section and thus the strength of the plastic joint elevated.
  • Vibration components acting vertically in accordance with the directional arrow (24) are mainly absorbed by linear movements of the vibration damper (2) and dampened.
  • the directional arrow (26) acts on the seal between the washing unit (1) and Closure as a spring and damping element.
  • a suitable shape or combination of elastomer materials can stiffness and damping behavior of the damping device can also be optimized in this direction.
  • Figure 4 shows a further modified embodiment of the damping device with mainly cylindrical plastic joints (27, 28).
  • the damper tube (29) and the piston rod (30) at the ends of an expansion (31) or depression (32), so that these components are engaged by undercuts in the plastic joint (27, 28) and thus an axial fixation of the vibration damper is guaranteed.
  • a snap ring (33, 34) which is embedded in the outer groove of the plastic joint, secures the Connection.
  • connection of the plastic joint (27, 28) to the frame (35) or to one on the washing unit (36) attached traverse (37) is on the longitudinal displacement of the plastic joint (27, 28) in a keyhole in the form of a longitudinal groove (38) in the crossmember (37) or in the frame (35) (not shown).
  • the plastic joints each point in Button area a groove (39, 40). This is done by means of a plastic pin (41, 42) Plastic joint (27, 28) to prevent it from slipping out of the keyhole (38) secured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP00125555A 1999-12-08 2000-11-22 Machine à laver avec système amortisseur Withdrawn EP1111116A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19959031 1999-12-08
DE19959031A DE19959031C1 (de) 1999-12-08 1999-12-08 Trommelwaschmaschine mit Dämpfungsvorrichtung

Publications (1)

Publication Number Publication Date
EP1111116A1 true EP1111116A1 (fr) 2001-06-27

Family

ID=7931768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00125555A Withdrawn EP1111116A1 (fr) 1999-12-08 2000-11-22 Machine à laver avec système amortisseur

Country Status (2)

Country Link
EP (1) EP1111116A1 (fr)
DE (1) DE19959031C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100430621C (zh) * 2004-02-20 2008-11-05 舒适宝控股有限公司 具有弹性导向缓冲单元的缓冲器
WO2013000899A1 (fr) 2011-06-27 2013-01-03 Arcelik Anonim Sirketi Machine à laver séchante comprenant des amortisseurs de choc

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106319857B (zh) * 2016-10-26 2020-10-13 珠海格力电器股份有限公司 滚筒洗衣机
DE102018109903B4 (de) * 2018-04-25 2021-10-28 Deutsches Zentrum für Luft- und Raumfahrt e.V. Vorrichtung zur Schwingungsabsorption für eine Waschmaschine, Waschmaschine und Verfahren zum Betreiben einer Waschmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2327340A1 (de) * 1973-05-29 1974-12-19 Licentia Gmbh Pneumatischer schwingungsdaempfer, insbesondere fuer wasch- und schleudermaschinen
DE2815596A1 (de) * 1978-04-04 1979-10-25 Houdaille Lelaurain Sa Aufhaengung fuer waschmaschinenbehaelter
EP0108217A2 (fr) * 1982-10-12 1984-05-16 Fritz Bauer + Söhne oHG Support capable d'osciller pour machines à laver à tambour
DE9203397U1 (de) * 1992-03-13 1992-05-21 Bauknecht Hausgeräte GmbH, 7000 Stuttgart Schwingbewegliche Lagerung eines Waschbehälters
EP0655522A1 (fr) * 1993-11-30 1995-05-31 MERLONI ELETTRODOMESTICI S.p.A. Machine à laver à chargement frontal
DE19636185A1 (de) * 1996-09-06 1998-03-12 Suspa Compart Ag Reibungsdämpfer, insbesondere für Waschmaschinen mit Schleudergang

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9421583U1 (de) * 1993-04-26 1996-03-21 Aktiebolaget Electrolux, Stockholm Vorrichtung an einer Waschmaschine zum Dämpfen des Vibrationsgeräusches

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2327340A1 (de) * 1973-05-29 1974-12-19 Licentia Gmbh Pneumatischer schwingungsdaempfer, insbesondere fuer wasch- und schleudermaschinen
DE2815596A1 (de) * 1978-04-04 1979-10-25 Houdaille Lelaurain Sa Aufhaengung fuer waschmaschinenbehaelter
EP0108217A2 (fr) * 1982-10-12 1984-05-16 Fritz Bauer + Söhne oHG Support capable d'osciller pour machines à laver à tambour
DE9203397U1 (de) * 1992-03-13 1992-05-21 Bauknecht Hausgeräte GmbH, 7000 Stuttgart Schwingbewegliche Lagerung eines Waschbehälters
EP0655522A1 (fr) * 1993-11-30 1995-05-31 MERLONI ELETTRODOMESTICI S.p.A. Machine à laver à chargement frontal
DE19636185A1 (de) * 1996-09-06 1998-03-12 Suspa Compart Ag Reibungsdämpfer, insbesondere für Waschmaschinen mit Schleudergang

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100430621C (zh) * 2004-02-20 2008-11-05 舒适宝控股有限公司 具有弹性导向缓冲单元的缓冲器
WO2013000899A1 (fr) 2011-06-27 2013-01-03 Arcelik Anonim Sirketi Machine à laver séchante comprenant des amortisseurs de choc

Also Published As

Publication number Publication date
DE19959031C1 (de) 2001-03-22

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