EP0253250A2 - 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
EP0253250A2
EP0253250A2 EP87109666A EP87109666A EP0253250A2 EP 0253250 A2 EP0253250 A2 EP 0253250A2 EP 87109666 A EP87109666 A EP 87109666A EP 87109666 A EP87109666 A EP 87109666A EP 0253250 A2 EP0253250 A2 EP 0253250A2
Authority
EP
European Patent Office
Prior art keywords
drum
loading position
program
license plate
switch
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.)
Granted
Application number
EP87109666A
Other languages
German (de)
English (en)
Other versions
EP0253250A3 (en
EP0253250B2 (fr
EP0253250B1 (fr
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
Family has litigation
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(A2) "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
Application granted granted Critical
Publication of EP0253250B1 publication Critical patent/EP0253250B1/fr
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 the drum, which can be driven by means of a reversible direction of rotation, of a program-controlled laundry treatment machine that can be loaded on the jacket side in the loading position.
  • Such a device is known from DE-AS 15 85 953.
  • the known drum is rotatably connected to a cam disk, which opens a rest switch 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 changeover switch actuated 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 move into the loading 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 will, however, already try to open the housing cover 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 measured accordingly.
  • the object of the invention is to convey the drum of a washing and / or drying machine into the loading position by simple means after the treatment program has ended by the shortest route.
  • the drum can be driven in one of the two directions of rotation depending on its position reached after the end of the program by a switching measure. This ensures 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.
  • the drum can be driven at a reduced speed or at a washing speed by the above switching measure, as desired and depending on the selected devices for the rotational position sensing.
  • 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.
  • the above switching measure can expediently be triggered by a switching device which contains a license plate carrier rotating with the drum and an assigned license plate holder.
  • a switching device which contains a license plate carrier rotating with the drum and an assigned license plate holder.
  • the pulley for driving the laundry drum which are rotatably connected to each other, so that the pulley is a suitable place for the attachment of a license plate.
  • the number plate holder is a cam disk and the number plate receiver is a cam switch.
  • the number plate holder preferably controls the number plate receiver in such a way that the drum drive motor always rotates the drum over the shortest route into the loading position, with a braking device for the drum also being actuated in the loading position of the drum.
  • the cam switch is a double triple switch and is connected to the circuit of reversing windings of the drum drive motor. This results overall in a low outlay for the means to solve the task.
  • the label holder contains an arrangement of three contact tracks of one or more ring collectors which are connected to the drum in a manner fixed against relative rotation.
  • the safe rotational position of the drum can be determined with particularly little effort by the fact that one contact track is self-contained and the two other contact tracks are segment-like and are offset from one another by 180.degree one or the other segment-like contact path is connected in a series circuit of reversing windings of the drum drive motor.
  • 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 switching measure can be triggered in a simple manner by actuating a button, so that the operator can decide for himself whether the drum must move into the loading position or not.
  • the button can be the cover switch of a locking device for the housing cover. Then lifting the lid is enough 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 of the operator being damaged by contact with the rotating drum.
  • the switching measure can only be triggered by a switch in the program control unit. This may be related to a button described above or mandatory for any treatment program be assigned at the end. In the case of a program without a spin section, the switching 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, e.g. Water inlet, drum rotation, spin cycle.
  • any other machine function e.g. Water inlet, drum rotation, spin cycle.
  • 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 switching 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, in a series circuit with a specific one of the two reversing windings of the drum drive motor.
  • FIGS. 1a, 1b and 1c Different positions of the washing drum of a washing machine are shown in FIGS. 1a, 1b and 1c and the associated circuit diagrams in FIGS. 2a, 2b and 2c, their loading opening in FIGS. 1b and 2b being in the loading position.
  • the schematically indicated housing 10 of the washing machine carries a drum 14.
  • a cam disk 16 which is oriented concentrically to the drum axis 1, is connected as a label holder for the position of the drum, on the circumference of which a fixed cam switch 18 engages.
  • the cam switch 18 contains two mechanically coupled changeover switches, each with three switching positions (hereinafter referred to as "double triple changeover switch").
  • FIG. 1a clockwise rotation is triggered
  • Fig. 1c counterclockwise rotation of the drum.
  • 1b shows the decelerated 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 11 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)).
  • the program-controlled reversing switch 13 also serves for reversing.
  • the switch 11 can also be a program switch, which changes to the other position after a program has run. However, it can also be a switch that can be actuated from the outside of the machine or a button that is actuated for the duration of the drum movement up to 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 cam slide 16 has brought the triple switch 18 into the lowest position in which the left contact of the switch 18 (FIG. 2a) is open and the right one is closed.
  • the Current therefore flows through the windings 33 and 35, as well as with a phase shift via the capacitor 36 connected in parallel through the windings 34 and 35.
  • the drive motor therefore remains energized in clockwise rotation until the drum is in the charging position.
  • the loading opening 12 is to the right of the drum axis 1.
  • the drum By turning the drum to the left, it can get into the loading position by the shortest route.
  • Another (the higher) path of the cam disk 16 has set the switch 18 to the left (FIG. 2c); the left contact is closed and the right one is open.
  • the current therefore flows from the line 30 through the left contact through the windings 34 and 35 and via the capacitor 36 out of phase through the windings 33 and 35 to the line 32. Therefore, the drive motor remains excited in the counterclockwise rotation until the drum is in the loading position.
  • the induction motor (33 to 36) is symmetrical, i.e. excited in phase; the machine is therefore braked in the loading position.
  • a series resistor 31 can be switched on in the line of the middle switch position. This protects the motor against overload in the braking position.
  • a program-controlled switch or switch (not shown) can be provided in one of these lines for the operational extension from the loading position.
  • FIG. 3 Another embodiment for the switching device is shown in FIG. 3.
  • the switching measure described above takes place by an arrangement of three ring collectors 46, 48, 50, which sit on a common shaft, for example the drum shaft, instead of the cam disk from FIGS. 1 and 2.
  • 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 paths 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), the induction motor with its windings 33 to 35 always braked when the grinders 45 are on the contact tracks 48 and 50 and carry current. This is the loading position.
  • the power is supplied via a button 44, through which the switching action can be triggered.
  • a button 44 through which the switching action can be triggered.
  • an additional ring collector 52 can be assigned to the ring collectors 46, 48, 50 of the type shown in FIG the jointly considered contact paths of the ring collectors 48 and 50 closes.
  • This contact path of the collector 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 circuit for the motor is then closed via the series resistor 68, which from this opposition position only rotates the drum to the left or to the right in one direction of rotation.
  • the contact path of the additional collector 52 overlaps little with the contact paths of the left-hand and right-hand collectors 48 and 50, so that the continuation after starting from the opposition position is ensured.
  • the label holder can be designed in a variety of ways.
  • the ring collectors 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 turned over, 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 other than by in-phase excitation of the two direction windings of an induction motor.
  • the switch 11 (FIG. 2) or the button 44 (FIGS. 3 and 4) can, unlike the above, be part of a monitoring device for the closed position of the housing cover of the washing machine. 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)
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 true EP0253250A2 (fr) 1988-01-20
EP0253250A3 EP0253250A3 (en) 1988-07-20
EP0253250B1 EP0253250B1 (fr) 1992-05-13
EP0253250B2 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)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465885A1 (fr) * 1990-06-26 1992-01-15 Sanyo Electric Co., Ltd. Machine à laver à tambour
US5398528A (en) * 1994-05-02 1995-03-21 Whirlpool Corporation Pulley system for automatic washer
US5448900A (en) * 1994-05-02 1995-09-12 Whirlpool Corporation System for automatically opening basket doors of a top loading horizontal axis automatic washer
US5469593A (en) * 1994-05-02 1995-11-28 Whirlpool Corporation Basket positioning system for a top loading horizontal axis automatic washer
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

Families Citing this family (4)

* 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.
DE4109541C2 (de) * 1991-03-22 1995-08-17 Bosch Siemens Hausgeraete Vorrichtung zum Befestigen eines Signalgebers für die Wäschetrommel einer Haushalt-Waschmaschine
DE59906202D1 (de) * 1999-12-23 2003-08-07 Diehl Ako Stiftung Gmbh & Co Verfahren zum Positionieren einer Waschtrommel einer Waschmaschine in einer Zielposition

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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465885A1 (fr) * 1990-06-26 1992-01-15 Sanyo Electric Co., Ltd. Machine à laver à tambour
US5267456A (en) * 1990-06-26 1993-12-07 Sanyo Electric Co., Ltd. Drum-type washing machine
US5398528A (en) * 1994-05-02 1995-03-21 Whirlpool Corporation Pulley system for automatic washer
US5448900A (en) * 1994-05-02 1995-09-12 Whirlpool Corporation System for automatically opening basket doors of a top loading horizontal axis automatic washer
US5469593A (en) * 1994-05-02 1995-11-28 Whirlpool Corporation Basket positioning system for a top loading horizontal axis automatic washer
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

Also Published As

Publication number Publication date
EP0253250A3 (en) 1988-07-20
DE3623059A1 (de) 1988-01-21
EP0253250B2 (fr) 1996-05-01
ES2031475T5 (es) 1996-07-16
DE3778987D1 (de) 1992-06-17
ES2031475T3 (es) 1992-12-16
EP0253250B1 (fr) 1992-05-13

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