EP2521809B1 - Toplader-waschmaschine - Google Patents

Toplader-waschmaschine Download PDF

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Publication number
EP2521809B1
EP2521809B1 EP10813045.1A EP10813045A EP2521809B1 EP 2521809 B1 EP2521809 B1 EP 2521809B1 EP 10813045 A EP10813045 A EP 10813045A EP 2521809 B1 EP2521809 B1 EP 2521809B1
Authority
EP
European Patent Office
Prior art keywords
tub
hub
basket
machine according
machine
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.)
Active
Application number
EP10813045.1A
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English (en)
French (fr)
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EP2521809A1 (de
Inventor
Dino Bongini
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
Application filed by Indesit Co SpA filed Critical Indesit Co SpA
Priority to PL10813045T priority Critical patent/PL2521809T3/pl
Publication of EP2521809A1 publication Critical patent/EP2521809A1/de
Application granted granted Critical
Publication of EP2521809B1 publication Critical patent/EP2521809B1/de
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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
    • D06F37/206—Mounting of motor
    • 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
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/269—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for the bearing of the rotary receptacle
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/02—Characteristics of laundry or load
    • D06F2101/04—Quantity, e.g. weight
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets

Definitions

  • the present invention relates to a top-loading laundry washing machine, having:
  • Top-loading laundry washing machines of the type referred to are known and widespread above all in Europe.
  • the shafts projecting from the two side walls of the laundry basket are operatively coupled to the respective hubs, which are rigidly associated to the homologous side walls of the tub.
  • the basket is thus able to rotate within the tub about a substantially horizontal axis, with one of the two shafts that is associated directly, or else by means of a transmission system, to an electric motor.
  • the tub is supported elastically within a cabinet of the machine: in this way, the so-called oscillating assembly - comprising at least the tub, the basket, the motor, the counterweights and the possible pumps associated to the tub - is free to perform oscillations determined by the loads acting on the basket during its rotation, said loads being due to the weight of the laundry being treated.
  • the circumferential wall of the basket is provided with a door, and the tub has an upper opening, facing said circumferential wall.
  • the cabinet in turn comprises a respective upper door, which enables access to the opening of the tub, and hence to the door of the basket
  • the basket is brought into an angular position such that the corresponding door occupies a position corresponding to the upper opening of the tub.
  • a bellows gasket having the purpose of preventing the water from possibly coming out of the opening of the tub and reaching live electrical parts that are located within the cabinet; said gasket, likewise prevents garments, or other objects from possibly accidentally falling between the cabinet and the tub, for example in the course of the operations of loading and unloading of the laundry.
  • top-loading machines of the type referred to are appreciated for the high quality of washing that can be obtained with relatively small amounts of water, for their high ergonomics of use, and for their flexibility of installation, due to the fact that the operations of loading/unloading of the laundry can be carried out from the top of the cabinet.
  • US6363756 discloses a laundry appliance such as a washing Machine or a clothes dryer where user access to the tub is facilitated by supporting the tub in a structure which may be tilted or slid out of the front of the appliance cabinet.
  • the aim of the present invention is to provide a top-loading laundry washing machine that is simple and inexpensive to produce, of reliably operation, and easy to use for the end user.
  • a top-loading laundry washing machine of the type referred to at the beginning is characterized in that:
  • the tub constitutes a stationary load-bearing structure, and hence one that cannot oscillate, has the consequence that the oscillating part of the machine is in effect constituted only by the basket, with the load of laundry, and by the components associated to the basket, i.e., its shafts, hubs, and motor, with said part of the machine that is free to perform the oscillations induced by the unbalanced loads acting on the basket during its rotation.
  • the tub must not necessarily be housed completely within a purposely provided cabinet, in so far as the tub itself functions at least in part as casing in view of the machine.
  • the aforesaid elastic supporting means between the oscillating part and the tub are provided for enabling radial, axial, and oscillatory displacements of the shafts of the basket, and hence of the driving arrangement and of the basket itself, with respect to the tub.
  • the basket and the components associated thereto are in any case free to perform all the displacements typically induced by normal operation of a top-loading machine with horizontal axis, due to the various loads acting on the basket.
  • the basket is provided with dynamic self-balancing elements. Thanks to this characteristic, prearrangement of the operating programs of the machine is relatively simplified in so far as the need to detect and correct with a high degree of precision any possible unbalancing of the load of laundry is reduced.
  • the aforesaid dynamic self-balancing elements can be of any type known in the sector.
  • these elements include at least two annular seats, preferably defined each in a position substantially corresponding to the circumference of a respective end wall of the basket, where in each seat a movable balancing mass is located, such as a mass of liquid or a series of balls.
  • Said self-balancing elements have relatively contained dimensions, and hence do not reduce the loading capacity of the machine significantly.
  • the elastic supporting means that connect each hub to the respective end wall of the tub can be variously configured, it being understood that they are in any case provided for enabling constrained displacements of a few centimetres - for example approximately 2-4 cm - of the oscillating part with respect to the tub, i.e., the aforesaid radial, axial, and oscillatory displacements.
  • these supporting means are configured in order for the extent of the axial displacements to be more contained as compared to the radial and oscillatory displacements.
  • the elastic supporting means operatively combined with one hub can even be structurally different from the elastic supporting means combined with the other hub.
  • the elastic supporting means between one end wall of the tub and the corresponding hub comprise a plurality of damping members, which extend in a substantially radial direction from the hub to the corresponding wall of the tub, for example damping members that include two parts telescopically coupled to one another and provided inside with an accumulator of mechanical energy, such as a spring, and a possible damping system.
  • damping members that include two parts telescopically coupled to one another and provided inside with an accumulator of mechanical energy, such as a spring, and a possible damping system.
  • the elastic supporting means between an end wall of the tub and the corresponding hub comprise a respective elastically deformable annular element, which surrounds the corresponding hub and connects it to the corresponding wall of the tub.
  • the aforesaid annular element can include, for example, a ring made of elastomeric material, with the inner and outer circumferences that differ by a few centimetres, for example between approximately 5 cm and approximately 8 cm in order to enable the aforesaid axial, radial, and oscillatory displacements of the oscillating part.
  • the annular element can also be shaped so as to define an annular chamber containing a gel or else a fluid, such as air, gas, or a liquid, sized for enabling the aforesaid displacements of the oscillating part of the machine.
  • the elastic supporting means can advantageously constitute or form part of the aforesaid sealing means that extend between the hub and the corresponding wall of the tub.
  • the aforesaid elastically deformable annular element that surrounds the hub and connects it to the corresponding wall of the tub can be configured for performing also sealing functions.
  • At least one of the end walls of the tub preferably both of the walls, has a concave profile, i.e., with the concavity towards the inside of the tub. In this way, the overall dimensions of the tub can be limited, at the same time enabling the necessary oscillatory movements of the basket inside it.
  • the stator of the motor is elastically constrained to the tub so as to be able to discharge on the tub the counter-reaction torque exerted by the stator, which is equal and opposite to the torque exerted by the rotor on the first shaft of the basket.
  • the constraint between the stator and the tub can be direct or else indirect, i.e., via interposition of the corresponding hub.
  • An indirect elastic constraint can be obtained exploiting the same supporting means as the ones that elastically connect the hub to the tub given that the stator is fixed to the corresponding hub.
  • Supporting means that can be used for the purpose may, for example, be the aforementioned axially extending damping members, the proximal ends of which will be appropriately constrained to the hub and the distal ends will be constrained to the tub.
  • a direct constraint can be, instead, obtained via a plurality of rigid elements that project directly from the structure of the stator, for example three pin-shaped elements set at 120° apart, each of which engages an eyelet of a corresponding damping block, for example made of elastomeric material, in a fixed position on the wall of the tub that the stator faces.
  • each hub includes means for obtaining a seal with respect to the corresponding shaft.
  • These means may comprise a sealing member of the type usually employed in the sector, such as a member of the type known by the trade name Corteco®.
  • the sealing means that extend between of a hub and the corresponding end wall of the tub comprise a bellows gasket, which enables the hub, and the components associated thereto, to perform the displacements induced by the movement of the basket during operation of the machine.
  • the structure of the machine comprises upright elements for supporting the tub with respect to the ground where the machine itself is installed.
  • These upright elements which are substantially anelastic or rigid, can be configured as components distinct from the tub and fixed to the latter, or else can be provided integrally with the tub, for example moulded in a single piece with a body of plastic material that forms at least part of the tub.
  • a container for housing a stabilizing mass is provided in the bottom part of the structure of the tub.
  • This container - which can also be made integrally with a plastic body that forms at least part of the tub - enables, if need be, the load-bearing structure of the machine to be rendered heavier and thus contribute to its stabilization.
  • the aforesaid container can be configured as a tank, with the stabilizing mass that is constituted by a liquid, for example water.
  • the machine has as a whole a contained weight, which facilitates its handling during production and transport, and the aforesaid tank can be filled following upon installation of the machine itself at the premises of the end user.
  • the tub is provided for supporting a cover of the motor and other possible electrical members projecting laterally from the tub, such as, for example, a pump, an electronic control card, or other electrical components.
  • a cover of the motor and other possible electrical members projecting laterally from the tub such as, for example, a pump, an electronic control card, or other electrical components.
  • said cover which may be made of plastic material, there may be associated the user interface of the machine, i.e., its control panel, comprising keys, pushbuttons or similar means of selection, through which a user can set a washing program and the possible options that can be associated thereto, as well as starting execution of the program itself.
  • the machine 1 comprises a washing tub 2, which, in the example shown, has a body including two end walls 3 and 4 and a peripheral or circumferential wall 5, which extends between the walls 3 and 4.
  • the peripheral wall 5 has an opening in its upper part, designated by 6 in Figure 2 , hinged to which is a loading door 7.
  • a seal gasket Provided between the door 7 and the edge of the opening 6 is a seal gasket, not indicated.
  • the body of the tub 2 can for example be made totally or partially of moulded thermoplastic material, either in a single piece or in a number of plastic parts welded or secured in a fluid-tight way to one another.
  • a material that can be used for the purpose is, for example, polypropylene with stiffening fillers.
  • the tub 2 has an at least approximately cylindrical shape, but other shapes are evidently possible, such as for example a substantially cradle-like shape.
  • the load-bearing structure of the machine 1 comprises upright elements 8, for supporting the tub 2 with respect to the ground where the machine is installed.
  • the structural part of the machine 1 that supports the tub 2 can have a shape different from the case represented by way of example, and can comprise, for example, a series of walls or a box-shaped or tubular element, which extends between the tub and the ground.
  • Preferably provided underneath the uprights 8 are resting feet, for example ones made of rubber.
  • the upright elements 8 are substantially anelastic or rigid and can be configured as one or more components distinct with respect to the tub 2, fixed to the latter.
  • the upright elements 8 are provided integrally with the tub 2, for example moulded in a single piece with a body of plastic material that forms at least part of the tub 2.
  • the basket 12 has a generally cylindrical shape, defined by two end walls 13 and 14 and a peripheral wall 15, which extends between the walls 13 and 14.
  • the peripheral wall 15 of the basket has arrays of holes, not represented, and can be provided with lifter elements, one of which is designated by 16 in Figure 3 .
  • Defined in the wall 15 of the basket is a respective opening for loading and unloading the laundry, where a door 17, of a type in itself known, is mounted.
  • the basket 12 can be formed by a number of moulded pieces of plastic material, rendered fixed with respect to one another, or else be made at least in part of metal, for example stainless steel.
  • the basket 12 is mounted in the tub 2 so that it can be set in rotation about a substantially horizontal driving axis, designated by A in Figure 3 .
  • the machine 1 has a driving arrangement, the basic elements of which are represented in Figures 4 and 5 .
  • Said arrangement comprises a first shaft and a second shaft, both designated by 20, which are coaxial to the driving axis A and are rigidly connected, according to known modalities, to a respective end wall 13 and 14 of the basket 12.
  • the driving arrangement further comprises a first hub and a second hub, for rotatably supporting the two shafts 20.
  • Each hub includes a hub body 21, mounted at an opening of the corresponding wall 3 or 4 of the tub 5.
  • Mounted within the hub body 21 is a bearing 22, operatively coupled to the corresponding shaft 20.
  • these means comprise a sealing member, designated by 23, of the type usually employed in the sector, such as a member known by the trade name Corteco®.
  • the means for sealing with respect to the shaft 20 also include a flange 24, belonging to a respective end wall 13 or 14 of the basket 12, which rigidly surrounds a portion of the shaft 20 and on which the sealing member 23 operates.
  • said sealing arrangement must be understood as being provided merely by way of example in so far as the sealing member 23 could, for example, operate on a bushing associated to the shaft 20, instead of on a flange of the basket 12.
  • the driving arrangement further comprises an electric motor 25, having a stator 26 and a rotor 27, the rotor 27 being rigidly connected to the shaft 20 associated to the wall 13 of the basket 12.
  • the system for driving the basket is of the type generically referred to as " direct drive ", the motor 25 having a general structure of a type in itself known.
  • stator 26 is supported by a corresponding hub, and precisely by the hub body 21 associated to the wall 3 of the tub 2; the fixing of the stator to the hub body 21 can be provided with means in themselves known, for example via threaded members.
  • each wall 3 and 4 of the tub 2 and the corresponding hub are elastic supporting means, in such a way that the driving arrangement of the basket 12, and the basket itself, are mounted so that they can oscillate with respect to the tub 2.
  • the aforesaid elastic supporting means are provided for enabling radial, axial, and oscillatory displacements of the driving arrangement and of the basket with respect to the tub, said displacements having an extent indicatively comprised between at least 1 cm and at least 4 cm.
  • the supporting means are configured in order for the extent of the axial displacements be more contained than the radial and oscillatory displacements so as to prevent the risk of the walls 13 and 14 of the basket 12 coming into contact with the walls 3 and 4 of the tub 2 in the course of operation of the machine.
  • one or both of the end walls 3 and 4 of the tub has/have a concave profile, i.e., with the concavity towards the inside of the tub, as in the case exemplified.
  • the elastic supporting means that connect each hub to the respective end wall of the tub comprise a plurality of axially extending damping members, designated by 28, which extend in a substantially radial direction from the hub to the corresponding wall of the tub, preferably at least slightly inclined with respect to the horizontal.
  • the members 28 comprise two parts 28a and 28b, telescopically coupled to one another, and are provided inside with an accumulator of mechanical energy, such as a spring 29 ( Figures 4 and 5 ), and with a damping system in itself known (not represented).
  • the members 28 extend between the hub body 21 and a fixed support 30, which is for example made of metal and is rendered fixed with respect to the tub 2, in particular at a through opening of the corresponding end wall 3 or 4: hence, in the example, each support 30 itself constitutes a central portion of the corresponding end wall of the tub.
  • Said support 30 has, in the example, a generally flared or frustoconical wall 31 and a peripheral annular wall 32. Defined centrally in the wall 31 is a hole 32, which hence constitutes the through opening of the corresponding end wall of the tub, at which the hub is located.
  • the proximal ends of the members 28 are constrained in respective seats 21a ( Figure 9 ) defined in the hub body 21, whilst their distal ends bear upon the peripheral wall 33 of the support 30, in a condition of at least partial pre-loading of the spring 29.
  • at least three damping members are provided arranged at approximately 120° from one another.
  • the members 28 can have an overall length indicatively comprised between approximately 5 cm and approximately 8 cm.
  • the support 30 must be considered an optional component of the elastic supporting system of the hubs in so far as its operation could be obtained directly from the corresponding end wall 3 or 4 of the tub 2 by appropriately shaping said end wall for the purpose.
  • these sealing means comprise a bellows gasket 34, mounted between the edge of the hole 33 and the hub body 21.
  • the oscillating part of the machine 1 is constituted only by the driving arrangement 20-25 of the basket 12, and by the basket itself, that the tub 2 provides a stationary load-bearing structure, i.e., a non-oscillating structure, and that at least a substantial portion of the tub 2 is directly exposed, i.e., it remains in view.
  • a prevalent part of the tub i.e., more than half thereof, remains directly in view.
  • the body of the tub 2 can be provided with an aesthetic finish, for example be painted or in any way coloured.
  • a further part of the machine 1 that remains directly in view and belongs to its load-bearing structure is constituted, in the example illustrated, by the uprights 8.
  • the basket 12 is provided with dynamic self-balancing elements, of a type in itself known in the sector.
  • these elements include two annular seats designated by 35 in Figure 3 , each defined in the proximity of the circumference of a corresponding end wall 13 and 14 of the basket 12.
  • a series of balls one of which is designated by 36 in Figure 3 , for example metal balls, which provide as a whole a movable balancing mass, according to a technique in itself known.
  • the balls 36 can be replaced by a mass of liquid.
  • the stator 26 of the motor 25 is elastically constrained to the tub 2 in such a way that the rotor 27 can effectively exert a torque on the corresponding shaft 20 of the basket 12.
  • the figures illustrate the case of direct elastic constraint between the stator and the tub.
  • projecting from the structure of the stator 26 are pin-shaped elements or appendages 37, for example at least three appendages set at approximately 120° apart.
  • Each appendage 37 is engaged in an eyelet 38 defined in a damping block 39, for example made of elastomeric material, mounted in a fixed position in a corresponding seat 40 of the wall 3 of the tub 2.
  • the aforesaid eyelet 38 is oblong in a vertical direction so as to enable the appendage 37 to displace vertically within it, and hence enable oscillatory and radial displacements of the stator 26; for this purpose, preferably, also between the end of the appendages 37 and the bottom of the eyelets 38 a slight space is provided.
  • the width of the eyelet 38 is such that between the appendage and the eyelet there is substantially no clearance in a horizontal direction in order to provide an elastic constraint between the stator and the tub, which prevents rotation of the stator and hence enables the rotor to exert the necessary torque on the shaft 20.
  • the elastic constraint between the stator 26 and the tub 2 may also be of an indirect type, i.e., be provided via the corresponding hub.
  • the damping members 28 can for example be used, constraining the corresponding proximal and distal ends in a substantially fixed position, on the hub body 21 and on the support 30, respectively, and hence without need for the arrangement referred to in Figure 6 .
  • the supporting means for elastically connecting a hub to the respective end wall of the tub can be configured in a way different from the case represented.
  • an elastically deformable annular element is provided, for example a ring of elastomeric material, which is fixed between the hub body 21 and the wall 3 or 4 of the tub 2 (or the support 30, if provided).
  • the inner and outer circumferences of this elastic ring differ by a few centimetres, for example between approximately 5 cm and approximately 8 cm, in order to enable the displacements of the oscillating part of the machine 1 during its operation.
  • the annular element used can be shaped so as to define an annular chamber containing a gel or else a fluid, such as air, gas, or a liquid.
  • the sealing means that extend between a hub and the corresponding wall of the tub can be constituted, or provided at least in part, by the supporting means themselves.
  • a container 44 designed to house a stabilizing mass, which if need be enables the load-bearing structure of the machine 1 to be rendered heavier.
  • this container 44 is formed integral with a plastic body that forms at least part of the tub 2 and is configured as a tank in such a way that the stabilizing mass can be a liquid, for example water.
  • the container 44 can be provided for this purpose with a charging plug and a discharging plug (not represented) for introduction and possible evacuation, according to the need, of the liquid.
  • the machine 1 then comprises further components traditionally necessary for normal operation of a washing machine, such as for example means for charging and discharging the liquid, means for heating the liquid, safety means, a dispenser of washing agents, a control system, wiring, pipes, etc.
  • a washing machine such as for example means for charging and discharging the liquid, means for heating the liquid, safety means, a dispenser of washing agents, a control system, wiring, pipes, etc.
  • the aforesaid means for charging the liquid into the tub have not been represented in the figures in so far as they can be obtained according to techniques in themselves known.
  • said means may comprise a loading duct giving out into the tub 2, the inlet of which is connected to a pipe designed for connection with the domestic water mains, as well as a charging solenoid valve, controlled by the control system of the machine, according to techniques in themselves known.
  • the charging means preferably comprise also a level sensor for sensing the level of the liquid charged into the tub, such as for example a pressure switch. It is not on the other hand excluded, in particularly simplified and economical embodiments of the machine according to the invention, that the dosage and charging of the water in the tub must be carried out manually by the user.
  • the aforesaid means for heating the liquid comprise an electrical resistance, designated by 41 in Figure 3 , positioned within the tub 2 in the proximity of its bottom.
  • the supply of said resistance 41 is controlled by the control system of the machine, which preferably also comprises a temperature sensor or thermostat.
  • the aforesaid means for discharging the water from the tub comprise a discharge pump, designated by 42 in Figure 3 , the intake section of which is connected to a duct 43 that departs from the tub bottom, for example made of a single piece with a body made of plastic material of the tub.
  • the delivery section of the pump 42 is instead connected to a discharge pipe (not represented), for example for connection with a fitting belonging to the domestic sewage system.
  • the aforesaid safety means may comprise a door-lock device, having a structure in itself known, controlled by the control system of the machine: such a device can be switched between an operative condition and an inoperative condition, in which opening of the door 7 is prevented or enabled, respectively.
  • the dispenser of washing agents can be of any type known in the sector, preferably of a type without electrical components.
  • a dispenser for example of the type known from IT-B-1330508 or from FR-A-2455113 - can be positioned in the internal part of the door 7.
  • the dispenser can be directly mounted on the basket, for example integrated in the door 17 of the basket 12, as described in FR-A-2673648 .
  • the machine 1 can in any case be without a dispenser, in which case the introduction of the detergent will be carried out manually by the user before starting a washing cycle, for example via a known container designed to be positioned within the basket, amongst the garments to be washed.
  • the aforesaid control system preferably comprises a microcontroller electronic control card, with associated memory means encoded in which are the instructions regarding the general operation of the machine and one or more corresponding operating programs.
  • the control system comprises a control panel or user interface (not represented), comprising keys or pushbuttons through which the user can select the washing program and the possible options that can be associated thereto (type of laundry, no-spin option, half-load, etc.).
  • the tub 2 is preferably provided for supporting at least one cover 45 for the motor 25 and for other possible electrical members projecting laterally from the tub 2, such as, for example, the pump 42, the electronic control card, or other electrical components or wiring.
  • This cover 45 (not represented in Figure 2 ) may for example be constituted by a plastic body and can support the user interface of the machine, i.e., its control panel, as well as possibly carrying, on the inner side thereof, the electronic card of the control system.
  • a similar cover can also be mounted at the opposite end wall of the tub 2.
  • the seat for the impeller of the pump 42, from which the corresponding intake and delivery sections branch off can be advantageously defined in the plastic body of the tub 2.
  • the plastic body of the tub there may also be formed part of the duct for discharging and/or of the duct for charging the washing liquid.
  • the elastic supporting means operatively combined with one of the hubs of the machine may also be structurally different from the elastic supporting means combined with the other hub.
  • the damping members 28 to the hub to which the motor 25 is associated there may be combined the damping members 28, whereas to the other hub there may be combined an annular damping element of the type described previously.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Claims (12)

  1. Von oben befüllbare Waschmaschine, aufweisend
    - eine Waschwanne (2), welche einen zwei Stirnwände (3 und 30, 4 und 30) und eine sich zwischen den Stirnwänden (3 und 30, 4 und 30) erstreckende periphere Wand (5) umfassenden Körper aufweist,
    - einen zum Rotieren um eine im wesentlichen horizontale Antriebsachse (A) innerhalb der Wanne (2) montierten Waschkorb (12), wobei der Korb (12) zwei Stirnwände (13, 14) und eine sich zwischen den Stirnwänden (13, 14) erstreckende periphere Wand (15) aufweist, wobei die peripheren Wände (5, 15) der Wanne (2) und des Korbes (12) zum Beladen und Entladen der Wäsche jeweilige Öffnungen (6, 17) aufweisen,
    - eine Antriebsanordnung (20-25), umfassend
    - koaxial zur Antriebsachse (A) eine erste und eine zweite Welle (20), wobei jede Welle (20) starr an einer jeweiligen Stirnwand (13, 14) des Korbes (12) gehalten ist;
    - eine erste und eine zweite Nabe (21-23), jeweils zum drehbaren Stützen der ersten und der zweiten Welle (20), wobei jede Nabe (21-23) an einer Apertur (33) einer entsprechenden Stirnwand (3 und 30, 4 und 30) der Wanne (2) montiert ist,
    - einen einen Stator (26) und einen Rotor (27) aufweisenden Motor (25), wobei der Rotor (27) mit der ersten Welle (20) verbunden ist,
    dadurch gekennzeichnet, dass
    - die Wanne (2) eine stationäre, nicht-schwingende Tragestruktur der Maschine (1) bereitstellt,
    - montiert an der Wanne (2), an der Öffnung (6) der entsprechenden peripheren Wand (5), eine Tür (7) zum Beladen und Entladen der Wäsche vorliegt,
    - der Stator (26) des Motors (25) von der ersten Nabe (21-23) gestützt ist,
    - zwischen jeder Stirnwand (3 und 30, 4 und 30) der Wanne (2) und der entsprechenden Nabe (21-23) elastisch verformbare Dichtmittel (34) und elastische Stützmittel (28) derart betriebsmäßig gesetzt sind, dass die Antriebsanordnung (20-25) und der Korb (12) schwingfähig in Bezug auf die Wanne (2) montiert sind.
  2. Maschine nach Anspruch 1, wobei der Korb (12) dynamische Selbstausgleich-Elemente (35-36) aufweist.
  3. Maschine nach Anspruch 2, wobei die Selbstausgleich-Elemente (35, 36) mindestens zwei ringförmige Sitze (35) des Korbes (12) umfassen, wobei in jedem von denen eine bewegliche Ausgleichsmasse (36), wie zum Beispiel eine flüssige Masse oder eine Mehrzahl von Kugeln, platziert ist.
  4. Maschine nach Anspruch 1, wobei die elastischen Stützmittel (28) zwischen einer Stirnwand (3 und 30, 4 und 30) der Wanne (2) und der entsprechenden Nabe (21-23) eine Mehrzahl von Dämpfungselementen (28) umfassen, welche sich in einer im Wesentlichen radialen Richtung von der Nabe (21-23) zu der Stirnwand (3 und 30, 4 und 30) der Wanne (2) erstrecken, wie zum Beispiel mindestens drei sich axial erstreckende Dämpfungselemente (28), welche in etwa unter 120° zueinander angeordnet sind.
  5. Maschine nach Anspruch 1, wobei die elastischen Stützmittel zwischen und Stirnwand (3 und 30, 4 und 30) der Wanne (2) und der entsprechenden Nabe (21-23) ein ringförmiges Element umfassen, welches die Nabe (21-23) umgibt und die Nabe mit der Stirnwand (3 und 30, 4 und 30) der Wanne (2) verbindet, wobei das ringförmige Element elastisch verformbar ist, um die oben genannten Verlagerungen zu ermöglichen.
  6. Maschine nach Anspruch 1, wobei mindestens eine Stirnwand (3 und 30, 4 und 30) der Wanne (2) ein konkaves Profil aufweist, um mögliche Schwingungsverlagerungen des Korbes (12) innerhalb der Wanne (5) zu ermöglichen.
  7. Maschine nach einem der vorhergehenden Ansprüche, wobei der Stator (26) des Motors elastisch an der Wanne (2) gehalten ist (25).
  8. Maschine nach einem der vorhergehenden Ansprüche, wobei jede Nabe (21-23) mindestens ein Dichtelement (23) zum Bereitstellen einer Dichtung bezüglich der entsprechenden Welle (20) umfasst.
  9. Maschine nach einem der vorhergehenden Ansprüche, wobei die Dichtmittel zwischen einer Stirnwand (3 und 30, 4 und 30) der Wanne (2) und der entsprechenden Nabe (21-23) eine Faltenbalgdichtung (34) umfassen.
  10. Maschine nach einem der vorhergehenden Ansprüche, ferner umfassend im Wesentlichen unelastische aufrechte Elemente (8), um auf dem Boden zu ruhen, wobei die aufrechten Elemente (8) starr mit der Wanne (2) verbunden oder einstückig mit der Wanne (2) sind.
  11. Maschine nach einem der vorhergehenden Ansprüche, wobei in dem unteren Teil der Struktur der Wanne (2) ein Behälter zur Aufnahme einer stabilisierenden Masse, wie beispielsweise eine Flüssigkeitsmasse, ausgelegt (44) ist.
  12. Maschine nach einem der vorhergehenden Ansprüche, wobei die Wanne (2) zum Stützen einer Abdeckung (45) des Motors (25) und anderer möglicher elektrischer Elemente (42) der Maschine ausgelegt ist.
EP10813045.1A 2010-01-05 2010-12-23 Toplader-waschmaschine Active EP2521809B1 (de)

Priority Applications (1)

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PL10813045T PL2521809T3 (pl) 2010-01-05 2010-12-23 Pralka ładowana od góry

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000001A ITTO20100001A1 (it) 2010-01-05 2010-01-05 Macchina lavabiancheria a carica dall'alto
PCT/IB2010/056045 WO2011083390A1 (en) 2010-01-05 2010-12-23 Top loading laundry washing machine

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EP2521809A1 EP2521809A1 (de) 2012-11-14
EP2521809B1 true EP2521809B1 (de) 2014-11-05

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ES (1) ES2529230T3 (de)
IT (1) ITTO20100001A1 (de)
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WO (1) WO2011083390A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107583649A (zh) 2012-04-11 2018-01-16 庄信万丰股份有限公司 含有金属的沸石催化剂
EP3862477A1 (de) 2020-02-10 2021-08-11 The Procter & Gamble Company Waschvorrichtungen mit dynamischen auswuchtanordnungen
EP3862478A1 (de) 2020-02-10 2021-08-11 The Procter & Gamble Company Dynamische auswuchtanordnungen und waschvorrichtungen mit einem oder mehreren drehfedern
EP3862479A1 (de) 2020-02-10 2021-08-11 The Procter & Gamble Company Aufhängungslose wäschevorrichtungen und verfahren zum auswuchten einer wäschevorrichtung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813903A (en) * 1973-02-01 1974-06-04 Ellis Corp Laundry machine
FR2396821A1 (fr) * 1977-07-08 1979-02-02 Thomson Brandt Machine a laver le linge a tambour comportant des paliers etanches
FR2455113A1 (fr) 1979-04-25 1980-11-21 Thomson Brandt Machine a laver le linge, munie de moyen d'injection de produits de traitement
FR2493361A1 (fr) * 1980-11-05 1982-05-07 Amiens Const Elect Mec Machine a laver le linge a tambour horizontal monte sur deux paliers inseres dans des supports amovibles
FR2673648B1 (fr) 1991-03-08 1994-11-25 Ciapem Lave-linge muni d'un distributeur de produits lessiviels.
US6363756B1 (en) * 1998-11-09 2002-04-02 Fisher & Paykel Limited Top loading laundry appliance
US8281623B2 (en) * 2006-03-16 2012-10-09 Lg Electronics Inc. Top-loading drum type washing machine

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PL2521809T3 (pl) 2015-05-29
EP2521809A1 (de) 2012-11-14
ES2529230T3 (es) 2015-02-18
WO2011083390A1 (en) 2011-07-14
ITTO20100001A1 (it) 2011-07-06

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