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EP0253250B2 - Dispositif pour positionner le tambour d'une machine à laver - Google Patents
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EP0253250B2 - Dispositif pour positionner le tambour d'une machine à laver - Google Patents

Dispositif pour positionner le tambour d'une machine à laver Download PDF

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Publication number
EP0253250B2
EP0253250B2 EP87109666A EP87109666A EP0253250B2 EP 0253250 B2 EP0253250 B2 EP 0253250B2 EP 87109666 A EP87109666 A EP 87109666A EP 87109666 A EP87109666 A EP 87109666A EP 0253250 B2 EP0253250 B2 EP 0253250B2
Authority
EP
European Patent Office
Prior art keywords
drum
equipment according
loading position
program
starting
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
EP87109666A
Other languages
German (de)
English (en)
Other versions
EP0253250B1 (fr
EP0253250A2 (fr
EP0253250A3 (en
Inventor
Georg Kirmes
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.)
BSH Hausgeraete GmbH
Original Assignee
Bosch Siemens Hausgerate GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6304741&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0253250(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bosch Siemens Hausgerate GmbH filed Critical Bosch Siemens Hausgerate GmbH
Publication of EP0253250A2 publication Critical patent/EP0253250A2/fr
Publication of EP0253250A3 publication Critical patent/EP0253250A3/de
Publication of EP0253250B1 publication Critical patent/EP0253250B1/fr
Application granted granted Critical
Publication of EP0253250B2 publication Critical patent/EP0253250B2/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
    • D06F37/30—Driving arrangements 
    • D06F37/302—Automatic drum positioning

Definitions

  • the invention relates to a device for moving a drum that can be driven by means of a reversible motor and a program-controlled laundry treatment machine that can be fed by a reversible motor in the loading position with a starter device that contains a license plate carrier rotating with the drum and an assigned license plate holder and that starts the drum in Depends on the standstill position reached after the end of the program in the direction of rotation which allows the shorter path to the loading position until the loading position is reached.
  • Such a device is known from GB-A 20 53 977.
  • the known drum is brought into the loading position purely mechanically, which requires considerable mechanical effort for the control and the movement.
  • the housing cover of the washing machine has to be raised, which allows access to the running drum.
  • An automatic gearbox is actuated via a traction cable, which determines the direction of rotation and the position for the loading position via a number plate holder and a number plate receiver in cooperation with two gear wheels.
  • the rope driven by a clock spring, be wound up again on a rope drum.
  • a device for achieving the drum standstill of a laundry drum in the operating position in which the drum is rotatably connected to a cam disk as a number plate holder, which opens a rest switch as a number plate receiver as soon as the drum is in the loading position.
  • the circuit for the drum drive motor is interrupted, which had previously been switched from washing operation to slow operation for rotating the drum into the loading position by a switch operated by the movement of the housing cover.
  • the drum then remains in the loading position.
  • a locking device depending on the lid position is provided for the loading position.
  • the known device has a disadvantage: the drum can only ever move into the charging position in one direction of rotation because only one winding of the reversible motor is switched on in the circuit provided for this purpose. In at least 50% of the cases, the drum rotates more than half a turn and takes a long time to do this. The operator must wait for the loading position to be reached for the duration of this time. Impatient operators, however, will already try to open the housing cover fully against the temporary lock while the drum is running, thereby putting a strain on the mechanical equipment (cover, cover storage, fixed and moving parts of the locking device), the strength of which must be dimensioned accordingly.
  • US-A 2 479 153 discloses a washing machine with a circular segment rigidly connected to the drum, which cooperates with a lever which reverses the polarity of the drive motor. After triggering the stop signal or the switching measure, the drum always runs forward in the stopping area provided for the charging position. Any necessary changes in the direction of rotation due to the loading position being overrun are indicated during the movement of the drum, with an additional rotation being carried out when the drum is very inert. This results in the same disadvantages as in DE-A-1 585 953.
  • the object of the invention is to convey the drum of a washing and / or drying machine to the loading position by simple means after the treatment program has ended, using the shortest possible route.
  • the number plate holder contains an arrangement of three non-rotatably connected contact tracks of the drum of one or more ring collectors, of which one contact track is self-contained and the other two contact tracks are segment-shaped and 180 ° against each other and that closed contact path is connected depending on its rotational position via path grinder either with one or with the other segment-like contact path in a series circuit of reversing windings of the drum drive motor.
  • the result of this is that the drum always reaches the loading position by the shortest route and thus in the shortest possible time, without unduly stressing the operator's patience. Due to the above starting measure, the drum can be reduced Speed or with washing speed.
  • the drum or its drive motor can be braked in the loading position.
  • the loading position once reached can be reliably maintained even when the laundry is distributed unfavorably in the drum.
  • a particularly simple and effective embodiment of the invention for the braked compliance with the loading position results in a further development of the invention with a two- or three-strand single-phase induction motor in that the direction-determining strands of the motor can be excited in phase during braking.
  • the starting measure can be triggered in a simple manner by pressing a button, so that the operator can decide for himself whether the drum must move into the loading position or not.
  • the button of the lid switch of a locking device for the housing cover be. Then it is sufficient to lift the lid to be able to move the drum into the loading position. However, it will be advisable to drive the drum at a reduced speed during this operating phase in order to reduce the risk for the operator of being damaged by contact with the rotating drum.
  • the start measure can only be triggered by a switch in the program control unit. This can be related to a button described above or it can be assigned to each treatment program at the end. In the case of a program without a spin section, the start measure should only be able to be triggered after the end of the rinse or, in the case of a program with a spin section, only when the spin cycle has ended.
  • the invention is designed such that the key hides other program functions when actuated. This ensures that no switching error in the program control device triggers any other machine function when the button is pressed, for example water supply, drum rotation, spin cycle. In the case of a drum rotation position in which the loading opening is exactly opposite the loading position, an unsafe switching position could arise if the label carrier is equipped with contact tracks, from which the drum cannot start safely.
  • the invention is advantageously further developed in that a further number plate is arranged in the area of the number plate holder opposite the loading position, the starting measure of which only leads to the motor starting in one direction of rotation.
  • the further label can be a short, segment-like contact track and can be connected with the closed contact track during a drum position, in which the loading opening is opposite the loading position, into a series circuit with a specific one of the two reversing windings of the drum drive motor.
  • the schematically indicated housing 10 of the washing machine carries a drum 14.
  • a label holder 16 is connected to the drum 14, which is oriented concentrically to the drum axis 1 and on whose contact tracks fixed contact springs 18 act as label receivers 18.
  • FIG. 1a clockwise rotation is triggered, in Fig. 1c counterclockwise rotation of the drum.
  • Fig. 1b shows the braked position or the standstill, in which the drum 14 is in the loading position. In this loading position, the loading opening 12 is in the uppermost position.
  • a switch 44 is provided which is in the position shown during the program run.
  • the motor can be operated in a conventional manner (via further program switches (not shown)).
  • a program-controlled reversing switch (not shown) also serves for reversing.
  • the switch 45 can also be a program switch, which changes to the other position after a program has run. However, it can also be a switch which can be actuated from the outside of the machine or a button 44 which is actuated for the duration of the drum movement up to the loading position.
  • FIG. 1 An embodiment for the switching device designed according to the invention is shown in FIG.
  • the starting measure described above is carried out by a ring collector with three contact tracks 46, 48, 50, which are on a common Shaft, for example the drum shaft.
  • the conductive contact tracks are closed at 46, at 48 a segment covering more than the left half of the ring collector and at 50 a segment covering more than the right half of the ring collector, both of which overlap in the upper region. All contact tracks are galvanically connected to each other. If the connection between the line 40 and the line 42 is established via the respective grinder 45 (number plate sensor 18 in FIG. 1), the induction motor with its windings 33 to 35 is always braked when the grinder 45 on the contact tracks 48 and 50 lie and carry electricity. This is the loading position.
  • the power supply takes place via a button 44, by means of which the starting measure can be triggered. Similar measures, as explained above, can be taken to distinguish the program run from the special movement into the loading position.
  • the loading opening 12 is to the left of the drum axis 1.
  • the shortest way to the loading position is clockwise rotation.
  • the label holder 16 brings two (46 and 50, FIG. 2) of its contact tracks into contact with their contact springs 45, through which the current flows via the button 44 and the windings 33 and 35 and with a phase shift via the capacitor 36 connected in parallel excited by the windings 34 and 35 and the drive motor in clockwise rotation until the drum 14 according to FIG. 1b is in the loading position, in which the three outer contact tracks 46, 48 and 50 communicate with their contact springs.
  • the drum 14 is moved from its position shown in FIG Moves counterclockwise in which the two outer contact tracks communicate with their contact springs.
  • Fig. 2 shows the circuit in detail using the outer three contact tracks - shown here in the loading position.
  • the drum 14 can reach the loading position by running the shortest way.
  • the current flows from the line 40 via the contact track 48 through the windings 34 and 35 and via the capacitor 36 phase-shifted through the winding lugs 33 and 35 to the line 42. Therefore, the drive motor remains excited in the counterclockwise rotation until the drum is in the loading position.
  • the induction motor (33 to 36) becomes symmetrical, i.e. excited in phase; the machine is therefore braked in the loading position.
  • an additional contact path 52 can be assigned to the contact paths 46, 48, 50 of the type shown in FIG jointly considered contact tracks 48 and 50 closes.
  • This contact track 52 is connected with its grinder 45 via a capacitive series resistor 68 to the winding 33 of the induction motor when the loading opening of the drum is exactly opposite to the loading position.
  • the button 44 is actuated, the circuit for the motor is then closed via the series resistor 68, which only ever moves the drum in from this opposition position one direction to the left or to the right.
  • the additional contact track 52 overlaps little with the contact tracks 48 and 50 for left and right-hand rotation, so that the continuation is ensured after starting from the opposition position.
  • the label holder can be designed in a variety of ways.
  • the ring collector can consist of one or more printed circuit boards, the contact tracks of which are designed in the manner of a printed circuit with one or more circular tracks and differently arranged grinders.
  • the drum When the button is pressed, the drum is rotated in one direction depending on its position. If the loading position is over-tightened, the corresponding other contact path gets under its grinder and initiates a counter-rotation into the loading position.
  • the devices for braking the drum in the loading position may be unnecessary or may act in other ways than by in-phase excitation of the two direction windings of an induction motor.
  • the switch or the button 44 can be part of a monitoring device for the closed position of the housing cover of the washing machine, in contrast to the above. Furthermore, this switch can also be inserted into the electrical circuit of the machine in such a way that other machine functions are electrically and / or mechanically excluded when it is in the position provided for turning into the loading position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Specific Conveyance Elements (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (11)

  1. Dispositif pour amener en position de chargement, par une action de commutation, le tambour entraîné par un moteur réversible d'une machine de traitement du linge à chargement par le dessus commandée par programme, comprenant un dispositif de commutation qui comporte un support de repère tournant avec le tambour et un détecteur de repère associé et qui, en fonction de la position d'arrêt atteinte par le tambour (14) à la fin du programme, amène ledit tambour en position de chargement par l'action de commutation, par rotation chaque fois dans le sens de rotation garantissant le chemin le plus court jusqu'à la position de chargement, caractérisé en ce que le support de repère (16) comporte un arrangement (18) de trois pistes de contact (46, 48, 50), solidaires du tambour (14), d'une ou de plusieurs bagues collectrices, parmi lesquelles une piste de contact (46) est fermée et les deux autres pistes de contact (48 et 50) ont une forme de segment et sont décalées de 180° l'une par rapport à l'autre et en ce que, en fonction de sa position angulaire, la piste de contact (46) fermée est connectée par l'intermédiaire de contacts à frotteurs (45), soit avec l'une, soit avec l'autre piste de contact (48 ou 50) en forme de segment dans un circuit en série d'enroulements d'inversion (33 ou 34) du moteur d'entraînement du tambour.
  2. Dispositif selon la revendication 1, caractérisé en ce que le tambour (14) ou son moteur d'entraînement est freiné dans la position de chargement.
  3. Dispositif selon la revendication 1 ou 2 avec un moteur monophasé à induction à deux ou trois pôles, caractérisé en ce que pendant le freinage, les pôles (33, 34) déterminant le sens de rotation du moteur sont excités en phase.
  4. Dispositif selon l'une des revendications 1 à 3 comprenant une poulie à courroie solidaire du tambour, caractérisé en ce que le support de repère est monté entre le tambour et la poulie à courroie.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que l'action de commutation est déclenchée par l'actionnement dune touche (44).
  6. Dispositif selon la revendication 5, caractérisé en ce que la touche (44) est le contacteur de couvercle d'un dispositif de verrouillage du couvercle de la cuve.
  7. Dispositif selon la revendication 1, 2, 5 ou 6, caractérisé en ce que l'action de commutation ne peut être déclenchée que par un commutateur dans le dispositif de commande à programme.
  8. Dispositif selon la revendication 7, caractérisé en ce que dans un programme sans essorage, l'action de commutation ne peut être déclenchée qu'à la fin du rinçage et, dans un programme avec essorage, qu'après le ralentissement final de l'essorage.
  9. Dispositif selon l'une des revendications 5 à 8, caractérisé en ce que la touche (44), lors de son actionnement, inhibe d'autres fonctions du programme.
  10. Dispositif selon l'une des revendications précédentes, caractérisé en ce que dans la zone du support de repère (46, 48, 50) opposée à la position de chargement, il est disposé un repère supplémentaire (52) dont l'action de commutation entraîne le démarrage du moteur toujours dans un seul sens de rotation.
  11. Dispositif selon la revendication 10, caractérisé en ce que le repère supplémentaire est une courte piste de contact en forme de segment (bague collectrice 52) qui, dans une position du tambour dans laquelle l'ouverture de chargement (12) est opposée à la position de chargement, est connectée avec une piste de contact fermée (bague collectrice 46) dans un circuit série avec un enroulement d'inversion (33) déterminé du moteur d'entraînement du tambour.
EP87109666A 1986-07-09 1987-07-04 Dispositif pour positionner le tambour d'une machine à laver Expired - Lifetime EP0253250B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3623059 1986-07-09
DE19863623059 DE3623059A1 (de) 1986-07-09 1986-07-09 Einrichtung zum bewegen der trommel einer waeschebehandlungsmaschine in beschickungsstellung

Publications (4)

Publication Number Publication Date
EP0253250A2 EP0253250A2 (fr) 1988-01-20
EP0253250A3 EP0253250A3 (en) 1988-07-20
EP0253250B1 EP0253250B1 (fr) 1992-05-13
EP0253250B2 true EP0253250B2 (fr) 1996-05-01

Family

ID=6304741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109666A Expired - Lifetime EP0253250B2 (fr) 1986-07-09 1987-07-04 Dispositif pour positionner le tambour d'une machine à laver

Country Status (3)

Country Link
EP (1) EP0253250B2 (fr)
DE (2) DE3623059A1 (fr)
ES (1) ES2031475T5 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3728940C2 (de) * 1987-08-29 1998-10-01 Miele & Cie Mantelbeschickbarer Waschtrockner
ES2026381A6 (es) * 1989-11-28 1992-04-16 Bosch Siemens Hausgeraete Lavadora de tambor con carga por la cubierta.
JP2834855B2 (ja) * 1990-06-26 1998-12-14 三洋電機株式会社 ドラム式洗濯機
DE4109541C2 (de) * 1991-03-22 1995-08-17 Bosch Siemens Hausgeraete Vorrichtung zum Befestigen eines Signalgebers für die Wäschetrommel einer Haushalt-Waschmaschine
US5448900A (en) * 1994-05-02 1995-09-12 Whirlpool Corporation System for automatically opening basket doors of a top loading horizontal axis automatic washer
US5398528A (en) * 1994-05-02 1995-03-21 Whirlpool Corporation Pulley system for automatic washer
US5469593A (en) * 1994-05-02 1995-11-28 Whirlpool Corporation Basket positioning system for a top loading horizontal axis automatic washer
EP1111117B2 (fr) * 1999-12-23 2008-07-02 Diehl AKO Stiftung & Co. KG Procédé pour positionner le tambour d'une machine à laver dans une position prédéterminée
CN112779719A (zh) * 2019-11-01 2021-05-11 佛山市云米电器科技有限公司 一种洗衣机的减速方法、系统、存储介质及洗衣机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479153A (en) † 1944-04-27 1949-08-16 American Machine & Metals Inc Reversing and stop control for electric motors
DE1585953A1 (de) † 1963-05-16 1970-07-16 Siemens Elektrogeraete Gmbh Vorrichtung zur Erzielung des Trommelstillstandes einer mantelbeschickten Waeschebehandlungsmaschine in der Bedienungslage
GB2053977A (en) † 1979-06-01 1981-02-11 Hoover Ltd Washing machines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2296719A1 (fr) * 1974-12-30 1976-07-30 Chalectro Cie Machines Laver L Machine a laver le linge
FR2300837A2 (fr) * 1975-02-11 1976-09-10 Chalectro Machines Machine a laver le linge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479153A (en) † 1944-04-27 1949-08-16 American Machine & Metals Inc Reversing and stop control for electric motors
DE1585953A1 (de) † 1963-05-16 1970-07-16 Siemens Elektrogeraete Gmbh Vorrichtung zur Erzielung des Trommelstillstandes einer mantelbeschickten Waeschebehandlungsmaschine in der Bedienungslage
DE1585953B2 (de) † 1963-05-16 1972-01-27 Siemens Electrogerate GmbH, 1000 Berlin u 8000 München Vorrichtung zur erzielung des trommelstillstandes einer mantelbeschickten waeschebehandlungsmaschine in der bedienungs lage
GB2053977A (en) † 1979-06-01 1981-02-11 Hoover Ltd Washing machines

Also Published As

Publication number Publication date
EP0253250B1 (fr) 1992-05-13
EP0253250A2 (fr) 1988-01-20
ES2031475T3 (es) 1992-12-16
ES2031475T5 (es) 1996-07-16
EP0253250A3 (en) 1988-07-20
DE3778987D1 (de) 1992-06-17
DE3623059A1 (de) 1988-01-21

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