EP1798323A1 - Vorrichtung und Verfahren zum Positionieren einer Trommel einer Waschmaschine und/oder Wäschetrockner - Google Patents

Vorrichtung und Verfahren zum Positionieren einer Trommel einer Waschmaschine und/oder Wäschetrockner Download PDF

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Publication number
EP1798323A1
EP1798323A1 EP06126022A EP06126022A EP1798323A1 EP 1798323 A1 EP1798323 A1 EP 1798323A1 EP 06126022 A EP06126022 A EP 06126022A EP 06126022 A EP06126022 A EP 06126022A EP 1798323 A1 EP1798323 A1 EP 1798323A1
Authority
EP
European Patent Office
Prior art keywords
finger
drum
positioning
pulley
locking
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
EP06126022A
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English (en)
French (fr)
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EP1798323B1 (de
Inventor
M. Hervé Pont
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.)
FagorBrandt SAS
Original Assignee
Brandt Industries SAS
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 Brandt Industries SAS filed Critical Brandt Industries SAS
Priority to PL06126022T priority Critical patent/PL1798323T3/pl
Publication of EP1798323A1 publication Critical patent/EP1798323A1/de
Application granted granted Critical
Publication of EP1798323B1 publication Critical patent/EP1798323B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 present invention relates to a device for positioning a rotating drum of a washing machine and / or drying the laundry.
  • It also relates to a method of positioning a rotary drum, in particular in a washing machine and / or drying the laundry.
  • the present invention relates generally to a machine for washing and / or drying laundry equipped with such a device for positioning a rotary drum.
  • This washing machine and / or drying machine comprises a tank in which is housed the drum for containing the laundry. This tank must be tightly closed when using the machine and / or drying the laundry.
  • the present invention applies to a washing machine and / or drying the laundry, provided with a rotary drum with radial loading, through an opening in the drum shell.
  • the loading and removal of the laundry drum is performed at the perimeter of the drum, and generally from the top of the machine.
  • the latter having in the upper plane of its body a door allowing access to the drum.
  • this rotary drum is equipped with a double-leaf door, these leaves being articulated independently respectively at the two opposite edges of the opening.
  • each leaf is mounted by one of its sides in rotation about an axis integral with an edge of the opening.
  • Washing machines are known on the one hand comprising a device for positioning and stopping the drum in the unloading position of the laundry.
  • washing machines have the disadvantage of not allowing several drum locking positions and not having a means of recognizing the angular position of the pulley.
  • Washing machines are also known comprising a device for positioning and stopping the drum in the unloading position of the laundry.
  • the pulley associated with the drum has on its outer peripheral wall a recess arranged to cooperate with a movable member to ensure at least two working positions. In a first position, the movable member is inserted within said depression. In a second position, the movable member is spaced from the outer peripheral wall of the pulley. Said movable element cooperates with a sensor to act on the motor. Said motor is stopped as soon as the first working position which has been reached by the mobile element is detected. Said depression being advantageously positioned so that the stopping of the motor and therefore of the rotation of the drum takes place when the latter has its opening in the loading and unloading position of the laundry.
  • the inertia of the laundry load driven by the drum can pull the movable member out of the recess in the outer peripheral wall of the pulley.
  • the movable member may be sheared by the centrifugal force of the drum as it rotates with a load of laundry.
  • the present invention aims to solve the aforementioned drawbacks and to provide a washing machine and / or tumble dry with a positioning device and locking the drum to ensure fast operation, reliable and not requiring another system of drum positioning recognition.
  • the only power unit used for this type of washing machine and / or dryer is the drum drive motor.
  • the assembly of the positioning and locking device of the rotary drum is adapted to standard tanks and pulleys.
  • the present invention is directed to a device for positioning and blocking a rotating drum of a washing machine and / or drying the laundry comprising a washing tub surrounding said rotary drum, said rotary drum being connected to a shaft rotary drive, said rotational drive shaft extending through a flange of the wash tub and being rotated by a pulley attached to an end of said shaft, said pulley extending to the outside of the washing tub, a motor and a belt driving said rotating pulley, an indexing finger cooperating with at least one notch formed on the periphery of said drive pulley of the washing tub for positioning the rotary drum, the indexing finger comprising at least two operating positions, a first position corresponding to the state of rest in which the indexing finger is outside said at least one notch, and a second position corresponding to the stop of the rotary drum in which the indexing finger is introduced into said at least one notch.
  • the device for positioning and locking a rotary drum of a washing machine and / or drying the laundry comprises a tractor finger connected to the indexing finger, the pulley comprises at least one ramp, the tractor finger is equipped with an interface cooperating with said ramp, and the interface of the tractor finger slides along the ramp of the pulley to drive the indexing finger between said at least two operating positions.
  • the positioning and locking of the drum are performed by a single device.
  • Power energy is provided by the main motor of the washing machine and / or drying the laundry. This power energy overcomes the forces due to the inertia of the laundry in the drum and rotating mechanical parts.
  • the ramp is used as a motor and power element being moved by the pulley and consequently by the main motor.
  • this device makes it possible to obtain a fast reaction time.
  • the actuator used for this device is of low power and standard. This actuator controls the positioning means and in particular the contacting of the indexing finger against the pulley. This actuator can be rotary or linear.
  • the indexing finger comprises an elastic means.
  • the tractor finger is placed in position in front of the ramp by an electromechanical system, said ramp draws the electromechanical system with the traction finger by sliding the interface of the tractor finger during the rotation of the pulley.
  • This displacement makes it possible to compress the elastic means of the indexing finger in contact with the periphery of the pulley.
  • the elastic means of the indexing finger is released and the indexing finger is housed in the notch. In this way, the drum is positioned and locked in a determined position.
  • the device comprises at least two electric breaking means.
  • the device for positioning and blocking a rotary drum can, with only two electrical cut-off means, enable the position of the various elements composing said device to be recognized for automatically opening the doors of the drum door having at least two positions.
  • a second aspect of the invention relates to a method of positioning and locking a rotating drum of a washing machine and / or drying laundry comprising a washing tub surrounding said rotary drum, said rotary drum being connected to a rotating drive shaft, said drive shaft in rotation extending through a flange of the wash tub and being rotated by a pulley attached to one end of said shaft, said pulley extending outside the wash tub, a motor and a belt driving said rotational pulley, an indexing finger cooperating with at least one notch formed on the periphery of said drive pulley of the washing tub for positioning the rotary drum, the indexing finger comprising at least two positions of operation, a first position corresponding to the state of rest in which the indexing finger is outside said at least one notch, and a second position corresponding to the stoppage of the drum rotary in which the indexing finger is introduced into said at least one notch.
  • the method of positioning and locking a rotary drum allows to position and block said drum quickly in at least one position.
  • Said at least one position is at least one corresponding to the positioning of a drum opening in front of an opening in the washing tub to allow unloading and loading of the laundry.
  • Positioning and locking the drum in said at least one position described above can occur at the end of a wash cycle but also at any time of the cycle to complete the load of laundry. This process requires only simple construction elements.
  • the method comprises at least two drum locking positions.
  • the method allows the implementation of an automatic opening function of the flaps of the drum door in the machine by having at least two positions.
  • a first locking position of the drum makes it possible to position the drum in front of an opening device doors of a drum door.
  • a second drum locking position makes it possible to position a drum door in front of an opening in the washing tub.
  • the detection means is housed in a notch during the locking of the drum for positioning a drum door opposite an opening in the washing tub.
  • the pulley assembled in the washing machine and / or drying the laundry can be identical if the detection means is used as a positioner or not.
  • the object of the present invention is to provide a device and a method for positioning and locking a reliable rotary drum and rapid reaction while ensuring accurate drum positioning for loading and unloading laundry.
  • This device also allows precise positioning in another position in case an automatic opening is arranged in the washing machine and / or drying the laundry.
  • This device is simple mechanical construction, inexpensive and simply adaptable to any type of washing machine and / or tumble dry.
  • this device is compact and easy to assemble.
  • the positioning and locking elements of the drum are subjected only to low mechanical stresses.
  • This washing machine 1 is of the type loading from above. In this way, this machine 1 is suitable for washing the laundry and possibly drying it.
  • This washing machine 1 comprises a body 2 comprising an access opening 3 inside the body 2.
  • this access opening 3 is made in an upper portion of the body 2 , and in this example, in an upper plane of the bodywork 2.
  • An access door 4 is adapted to close this opening 3 of the body 2 of the machine 1, especially during operation thereof.
  • this access door 4 is associated with locking means (not shown) whose operation is related to the washing cycle of the machine 1.
  • locking means (not shown) whose operation is related to the washing cycle of the machine 1.
  • the means of locking are actuated to prevent the opening of the access door 4.
  • the locking means are unlocked to allow the opening by the user of the machine 1.
  • the access door 4 is pivotally mounted about an axis of rotation 5 integral with the body 2 of the machine 1.
  • the bodywork 2 of the machine 1 is adapted to house a washing tub 6 which is particularly suitable for containing the various washing and rinsing baths.
  • the drum 7 is thus rotatably mounted about a horizontal axis 8.
  • Figure 1 is schematic and that many organs necessary for the operation of the machine (and for example motor, pumps, filters, ...) have been omitted and do not need to be described in detail here.
  • an access door 9 for example formed of two gates 10a and 10b pivotally mounted on the ferrule of the drum 7.
  • washing tub 6 may also include a tank door (not shown).
  • This tank door makes it possible to close an opening 11 made in the tank 6 and disposed substantially in line with the access opening 3 of the bodywork 2 of the machine 1.
  • This tank door can thus be movable between a closed position in which it closes the opening 11, in a sealed manner, and an open position in which the door leaf is disposed between the tank wall 6 and the body 2 of the machine 1.
  • FIG. 1 illustrates in isolation FIG. 1 the tank 6 according to the invention equipped with a device for positioning and locking the rotary drum 12.
  • Figures 1 to 14 show a device for positioning and locking a rotary drum electromechanical type.
  • the means constituting this device 12 are shown in the figures cited above and are in part standard components used in different fields such as home appliances.
  • Said device for positioning and locking the rotary drum 12 comprises a casing 13, preferably obtained by two coupling shells and made of thermoplastic material.
  • Said device 12 is equipped at one end with an opening allowing the passage of at least the tractor finger 14. And at another end, the device 12 comprises another opening allowing the passage of the cables supplying the actuator 15.
  • the device for positioning and locking a rotating drum 12 of a washing machine and / or drying the laundry 1 comprises a washing tub 6 surrounding said rotary drum 7, said rotary drum 7 being connected to a drive shaft in rotation, said rotational drive shaft extending through a flange of the washing tub 6 and being rotated by a pulley 16 fixed to one end of said shaft, said pulley 16 extending to the outside the washing tub 6, a motor 17 and a belt 18 driving said pulley 16 rotating, an indexing finger 19 cooperating with at least one notch 20 formed on the periphery of said drive pulley 16 of the tank washing 6 to position the rotary drum 7, the indexing finger 19 comprising at least two operating positions, a first position corresponding to the state of rest in which the indexing finger 19 is outside said at least one notch e 20, and a second position corresponding to the stop of the rotary drum 7 in which the index finger 19 is introduced into said at least one notch 20.
  • the device for positioning and locking the rotary drum 12 comprises a housing 13 fixed on the washing tub. Said casing 13 guides the elements making up said device 12 including the tractor finger 14.
  • a tractor finger 14 is connected to the indexing finger 19.
  • the pulley 16 comprises at least one ramp 21.
  • the tractor finger 14 is equipped with an interface 22 cooperating with said ramp 21. And the interface 22 of the finger tractor 14 slides along the ramp 21 of the pulley 16 to drive the indexing finger 19 between said at least two operating positions.
  • the power element of the device is the motor 17 for driving the drum 7.
  • the driving pulley 16 in rotation of the drum 7 fixed in a manner known to those skilled in the art to said drum 7 is connected to a second pulley 23 by a belt 18 or a similar transmission element.
  • the device for positioning and locking the drum 12 associated with the washing machine 1 makes it possible to immobilize the opening of said drum 7 to the right of the opening 11 formed in the tank 6 for loading and unloading the laundry at any time when the order to stop the machine ordered.
  • the device for positioning and locking the drum 12 comprises the indexing finger 19 cooperating with the peripheral surface 24 of the pulley 16.
  • Said pulley 16 comprises on its periphery 24 at least one notch 20 adapted to cooperate with the indexing finger 19.
  • the displacement of the tractor finger 14 is adapted so that the indexing finger 19 is engaged in at least one notch 20 is out of said at least one notch 20.
  • the peripheral surface 24 of the pulley 16 comprises two notches 20 and 25 cooperating with the indexing finger 19. These two notches 20 and 25 allow for an automatic opening mode of the drum door 9.
  • a first notch 20 serves to position the drum door 9 vis-à-vis an unlocking means (not shown) of at least one flap 10a of the drum door 9.
  • a second notch 25 serves to position the drum door 9 vis-à-vis the opening 11 of the tank 6.
  • the tractor finger 14 cooperates with the indexing finger 19 in which said indexing finger 19 slides.
  • the indexing finger 19 comprises an elastic means 26.
  • a first end of the indexing finger 19 cooperates with the peripheral surface 24 of the pulley 16.
  • a second end of the indexing finger 19 comprises the elastic means 26.
  • the device 12 is connected to a control means (not shown) adapted to supply electrical energy to said device 12.
  • the device 12 comprises at least one electric breaking means 27.
  • Said at least one cut-off means 27 is disposed on the indexing finger 19.
  • Said at least one a breaking means 27 may be a switch or a relay.
  • Said at least one breaking means 27 is connected to the control means (not shown) of the machine 1 and in particular to the motor 17. This connection between said at least one breaking means 27, the motor 17 and the control means is known to those skilled in the art and can be made for example by electric cables.
  • the device for positioning and locking the drum 12 is adapted to be arranged in the body 2 of the machine 1 in a known manner.
  • the device for positioning and locking the drum 12 is in the rest position when the tractor finger 14 is in the low position.
  • the interface 22 of the tractor finger 14 can not be driven by the ramp 21 of the pulley 16.
  • the interface 22 of the tractor finger is disposed below the ramp 21 of the pulley 16.
  • the spacing between the pulley 16 and the washing tank 6 allows the displacement of the interface 22 of the tractor finger 14. Moreover, the tractor finger 14 can not fall below the pulley 16.
  • an embodiment of the invention could allow the tractor finger 14 to pass from one side and the other of the pulley 16 by having a sufficient spacing between said pulley 16 and the washing tub 6.
  • the device for positioning and locking the drum 12 is spaced from the peripheral surface 24 of the pulley 16.
  • the control means of the machine 1 causes a slowing down of the speed of rotation of the drum 7 by acting on the motor 17 in a manner known to those skilled in the art.
  • the rotational speed of the motor 17 is for example of the order of 30 revolutions per minute.
  • an actuator 15 of the positioning and locking device of the drum 12 is operated so as to move the tractor finger 14 towards the pulley 16 in order to block the pulley 16 with the indexing finger 19.
  • the indexing finger 19 comes into contact with the periphery 24 of the pulley 16. Said indexing finger 19 remains in contact with the periphery 24 of the pulley 16 until the indexing finger 19 is housed in a housing. notch 20 formed on the periphery 24 of the pulley 16. The indexing finger 19 comes into contact with the end of said notch 20 and the motor 17 of the machine 1 is stopped.
  • the contacting of the indexing finger 19 with the periphery 24 of the pulley 16 is ensured by the compression of an elastic means 26. In this way, the indexing finger 19 is in pressure on the periphery 24 of the pulley 16.
  • the speed of rotation of the drum 7 is low during positioning and locking of said drum, hence the small forces exerted on the positioning and locking device of the drum 12.
  • the indexing finger 19 is held in said notch 20 in contact with the periphery 24 of the pulley 16 by an elastic means 26, such as a spring, to maintain the electrical state of the at least one electric breaking means 27.
  • the initial position of the indexing finger 19 is a position where the elastic means 26 of said indexing finger 19 is at rest.
  • a non-return means is connected with the actuator 15 of the positioning device and locking the drum 12.
  • Said actuator 15 can be made by a micromotor or by a wax cylinder. Said actuator 15 is connected to a transmission link for moving the tractor finger 14.
  • the actuator 15 can drive the tractor finger 14 in both directions of operation.
  • the device 12 may comprise a drive means equipped with a clutch system.
  • the clutch system comprises a torsion spring 28 of a cylinder 29 mounted tightly on a shaft of the drive means and a pinion 30.
  • the tractor finger 14 is driven by a rack 31 meshing with the pinion 30 of the clutch system.
  • Such a drive finger drive device 14 is shown in Figures 1 to 14 illustrated herein.
  • the indexing finger 19 cooperates with at least one detection means 32 so as to control the drive motor 17 of the rotary drum 7.
  • the tractor finger 14 is connected to said at least one detection means 32.
  • Said at least one detection means 32 can be produced by a detection finger.
  • the tractor finger 14 cooperates with the detection means 32 in which said detection means 32 slides.
  • Said at least one detection means 32 is connected to an elastic means 33 such as a spring.
  • Said detection means 32 is driven by the tractor finger 14 until it comes into contact with the periphery 24 of the pulley 16. The contacting of the detection means 32 with the periphery 24 of the pulley 16 is ensured by the compression of the elastic means 33.
  • Said at least one detection means 32 is in contact with the periphery 24 of the pulley 16 and slides on the periphery 24 of the pulley 16 during the rotation of said pulley 16.
  • the interface 22 of the tractor finger 14 forms a stop on the ramp 21 along an axis of movement of said tractor finger 14.
  • the interface 22 of the tractor finger 14 is of triangular shape.
  • the driving pulley 16 of the drum 7 is equipped with a ramp 21 attached to or integrated in said pulley 16.
  • the positioning and locking of the rotary drum is implemented after the detection of an end of washing cycle or by an order given by the user.
  • the interface 22 of the tractor finger 14 is neither in contact with the pulley 16 nor with the ramp 21.
  • the drum 7 is neither positioned nor blocked. Said drum 7 can rotate freely, as illustrated in FIG. 2.
  • the actuator 15 of the device 12 is electrically powered. Said actuator 15 drives the tractor finger 14 via a rack 31 until the indexing finger 19 is in contact with the outer peripheral surface 24 of the pulley 16, as illustrated in FIG. 3 .
  • the motor 17 of the machine 1 can be powered to drive the pulley 16 attached to the drum 7.
  • the interface 22 of the tractor finger 14 comes into contact with the ramp 21 disposed on the inner part of the rim of the pulley 16.
  • the slope 35 of the ramp 21 drives the tractor finger 14 by sliding the interface 22 of said tractor finger 14 on said ramp 21.
  • the indexing finger 19 is slidably mounted on the tractor finger 14 and said indexing finger 19 can not go higher up.
  • An elastic means 26 of the index finger 19 is compressed when the interface 22 of the tractor finger 14 abuts the ramp 21 of the pulley 16.
  • a rack 31 drives a pinion 30 when the interface 22 of the tractor finger 14 slides along the ramp 21 and a resilient means 28 unwinds and slides around a cylinder 29 mounted tight on a shaft of a drive means 15.
  • the drive means 15 may be a micromotor. said micromotor 15 does not rotate since its internal resisting torque is greater than the force exerted due to the high gear ratio. This phase of the positioning process is illustrated by FIGS. 4 and 5.
  • the drum 7 is unblocked by feeding the drive means 15, said drive means 15 drives the tractor finger 14 and the index finger 19 leaves said at least one notch 20 formed on the periphery 24 of the pulley 16.
  • the micromotor 15 is powered and drives the tractor finger 14 in the opposite direction. Despite the presence of a disengageable gear 30 mounted on the shaft of the micromotor 15, it will still cause the tractor finger 14 through the friction forces of the torsion spring 28 on the cylinder 29. The indexing finger 19 out of said notch 20 so as to release the drum 7.
  • the interface 22 of the tractor finger 14 bears on a wall 34 of the ramp 21 preventing the drum 7 from rotating in the opposite direction.
  • the device 12 makes it possible to position in a first position the flaps 10a and 10b of the drum 7 vis-à-vis an unlocking system (no shown) of said leaves 10a and 10b.
  • the indexing finger 19 leaves the first notch 20 formed on the pulley 16.
  • the pulley 16 can not turn in the opposite direction since the triangular shape of the interface 22 abuts against the return 34 formed on the ramp 21 of the pulley 16. This return 34 formed on the ramp 21 makes it possible to prevent the drum 7 turn in the opposite direction especially because of unbalance due to the laundry contained in the drum 7.
  • the motor 17 of the machine 1 is fed so as to compress the elastic means 26 of the index finger 19 with the outer peripheral surface 24 of the pulley 16.
  • the tractor finger 14 is driven upwards by the interface 22 of the traction finger 14 sliding on the ramp 21 of the pulley 16. This phase of the process is illustrated by Figures 9 and 10.
  • the ramp 21 of the pulley 16 comprises an inclined portion 35 associated with the search for each position.
  • the ramp 21 comprises two inclined parts to allow the automatic opening of the leaves 10a and 10b of the drum door 9.
  • the tractor finger 14 can not go down.
  • the tractor finger 14 remains in position due to the presence of the non-return means included by the clutch system and the spring 26 of the indexing finger 19.
  • This clutch system is disengageable as we have explained previously. . Therefore, the indexing finger 19 is housed in a second notch 25 formed on the outer periphery 24 of the pulley 16. Simultaneously, the indexing finger 19 comes to an end-of-travel stop relative to the tractor finger 14. At this moment, the drum 7 is positioned and locked in the second position. This phase of the positioning process is illustrated in FIG. 11.
  • the micromotor 15 is energized and drives the tractor finger 14 in the opposite direction.
  • the indexing finger 19 leaves the second notch 25 formed on the pulley 16 so as to release the drum 7.
  • the pulley 16 can not turn in the opposite direction since the triangular shape of the interface 22 abuts against the return 34 on the ramp 21 of the pulley 16. This return 34 formed on the ramp 16 prevents the drum 7 to turn in the opposite direction, particularly because of unbalance due to the laundry contained in the drum 7.
  • the position recognition of the drum 7 is based on the fact that the detection is relative between the different parts making up the device 12 and not absolutely.
  • the position detection of the drum 7 is provided by the device 12 comprising at least one cut-off means 27.
  • the device 12 comprises two cut-off means 27a and 27b illustrated in FIG. 26.
  • Said cut-off means 27a and 27b may be switches.
  • the breaking means 27a and 27b may be other electrical detectors such as optical detectors.
  • Said at least one cutoff means 27 is disposed on the indexing finger 19.
  • Moving parts contributing to position detection are the finger 19, the tractor finger 14 and the detection means 32.
  • the three parts mentioned above comprise shapes adapted to activate two switches 27a and 27b.
  • the combination of the two switches 27a and 27b is used to determine a positioning state. At each positioning phase corresponds an electrical state of the two switches 27a and 27b brought together. Said switches 27a and 27b are either activated corresponding to a closed contact designated "1", or deactivated corresponding to open contact designated "0". For each phase of the method, the positioning is determined according to the evolution of the states of the two switches 27a and 27b.
  • the moving parts mentioned above follow a predetermined synoptic as soon as the positioning and locking device of the drum 12 is put into operation.
  • the movements of said parts are obliged to follow the synoptic.
  • the two breaking means 27a and 27b are mounted on the indexing finger 19.
  • a first electric breaking means 27a is activated by the tractor finger 14 or by the housing 13.
  • a second means of electric break 27b can be activated by the detection means 32.
  • An embodiment of the invention will now be described comprising a method of automatically opening a door in a washing machine and / or drying the laundry as described above.
  • FIGS. 15 to 25 show the principle of operation of the device for positioning and locking the rotary drum of a washing machine and / or drying the laundry schematically.
  • FIG. 27 shows a table summarizing the logic states taken by the two breaking means 27a and 27b during the process of automatically opening a door in a washing machine and / or drying the laundry.
  • the device for positioning and locking the rotary drum 12 comprises a tractor finger 14, an indexing finger 19 and a detection means 32.
  • a detection means 32 is linked to the tractor finger 14.
  • the finger indexing means 19 and the detection means 32 are connected to the tractor finger 14 by an elastic means 26 and 33 such as a spring.
  • the pulley 16 attached to the drum 7 comprises a ramp 21 formed on the inner peripheral surface to guide the interface 22 of the tractor finger 14.
  • the device 12 comprises at least two locking positions of the drum 7.
  • Said pulley 16 also comprises a first notch 20 to accommodate the indexing finger 19 to achieve a first positioning of the drum 7. This first positioning of the drum 7 allows an unlocking means to unlock the flaps 10a and 10b of the drum door 9.
  • Said pulley 16 comprises a second notch 25 for accommodating the indexing finger 19 in order to perform a second positioning of the drum 7.
  • second positioning of the drum 7 makes it possible to arrange the leaves 10a and 10b of the drum door 9 vis-à-vis the opening 11 formed in the tank 6.
  • said pulley 16 comprises a third notch 36 for accommodating the means 32 to ensure the positioning of the drum 7 in said second position. This embodiment is illustrated in FIG.
  • the device for positioning and locking the rotary drum 12 comprises two electric breaking means 27a and 27b such as switches.
  • a first electric breaking means 27a is arranged to detect the position of the detection means 32 and a second electric breaking means 27b is arranged to detect the position of the indexing finger 19.
  • These two electric breaking means 27a and 27b are disposed on the tractor finger 14.
  • the number of electric breaking means 27a and 27b is at least two.
  • the drum 7 of the washing machine and / or drying the laundry 1 is free to rotate.
  • machine 1 performs a wash cycle.
  • the electric breaking means 27a and 27b take a value of "1" meaning that the device 12 is out of operation.
  • the first electric breaking means 27a detects the contact between the detection means 32 and the indexing finger 19.
  • the second electric breaking means 27b detects the contact between the indexing finger 19 and the casing 13 of the device 12.
  • the actuator 15 of the device 12 is not powered.
  • the drive motor 17 of the drum 7 is powered. This phase a is illustrated in Figure 16.
  • the actuator 15 When transmitting an electrical signal from the control means of the machine 1 to the positioning and locking device of the drum 12, the actuator 15 is energized and drives the tractor finger 14. Therefore, the indexing finger 19 is driven towards the pulley 16 since the indexing finger 19 is connected to the tractor finger 14.
  • the drum 7 is stationary so the motor 17 for driving the drum 7 is not powered.
  • the first electric breaking means 27a connected to the detection means 32 remains in a closed electrical contact state, ie a value at "1".
  • the indexing finger 19 remains in contact with the detection means 32.
  • the second electric breaking means 27b connected to the detection means 32 changes its electrical state corresponding to an open contact, ie a value at "0".
  • the indexing finger 19 is no longer in contact with the casing 13 of the device 12.
  • This phase b is illustrated in FIG. 17.
  • the next phase c corresponds to the contacting of the indexing finger 19 with the pulley 16 to find the first blocking position.
  • the drum 7 is rotated by the motor 17 of the machine 1.
  • the indexing finger 19 comes into contact with the pulley 16.
  • the actuator 15 of the device 12 is not put into operation .
  • the electric breaking means 27a and 27b take a value of "0".
  • the first electric breaking means 27a connected to the detection means 32 is an open contact since said detection means 32 is also in contact with the peripheral surface 24 of the pulley 16.
  • the indexing finger 19 and the detection means 32 are more in touch.
  • the second electric breaking means 27b the indexing finger 19 is still not in contact with the tractor finger 14 so the contact remains open.
  • the elastic means 26 and 33 of the index finger 19 and the detection means 32 are compressed.
  • This phase c is illustrated in FIG. 18.
  • the indexing finger 19 is driven by the sliding of the interface 22 of the tractor finger 14 on the ramp 21 formed on the inner peripheral surface of the pulley 16.
  • the driving motor 17 of the drum 7 is put into operation until that the second electric breaking means 27b goes to a value of "1", that is to say that the indexing finger 19 is in contact with a portion of the tractive finger 14 forming a stop.
  • the first electric breaking means 27a remains in the previous operating state at "0”.
  • the elastic means 26 and 33 of the index finger 19 and the detection means 32 are compressed.
  • the actuator 15 of the device 12 is not operated. This phase d is illustrated in Figure 19.
  • the pulley 16 of the drum 7 continues to rotate at a low speed and the indexing finger 19 is housed in a first notch 20 formed on the peripheral surface 24 of the pulley 16.
  • the rotation of the drum 7 can be generated by the load of laundry driving said drum by inertia.
  • the first electric breaking means 27a remains in the previous operating state at "0".
  • the second electric breaking means 27b goes to state "0" because the indexing finger 19 is no longer in contact with a portion of the tractive finger 14 forming a stop.
  • the elastic means 26 of the indexing finger 19 drives said indexing finger 19 into said first notch 20. Said elastic means 26 is no longer compressed since the indexing finger 19 is no longer in contact with the outer peripheral surface 24 of the pulley 16.
  • the detection means 32 remains in contact with the outer peripheral surface 24 of the pulley 16 by the elastic means 33. For detecting the first position of the drum, the detection means 32 is not necessary . Therefore, no notch is provided for the latter during this phase of the process.
  • the actuator 15 of the device 12 is not operated. This phase e is illustrated in FIG. 20.
  • a first locking position of the drum makes it possible to position the drum in front of a device for opening the flaps of a drum door.
  • the device 12 disengages from said first position.
  • the actuator 15 of the device 12 is put into operation to move the traction finger 14 away from the pulley 16 and consequently the indexing finger 19 and the detection means 32. This phase f is illustrated in FIG. 21.
  • the device 12 is considered disengaged from the first position as soon as the first electric breaking means 27a goes to state "1", that is to say that indexing finger 19 is in contact with the detection means 32.
  • the tractor finger 14 drives the indexing finger 19 towards the detection means 32 forming a stop.
  • the elastic means 33 of the sensing pin 32 is compressed.
  • the drum 7 can not rotate in the opposite direction since the ramp 16 comprises a stop 34 avoiding this rotational movement of said drum 7.
  • the actuator of the device is stopped and the motor 17 of the machine 1 drives the drum 7 to reach the second locking position. This phase g is illustrated in FIG. 22.
  • the next phase h corresponds to the contacting of the indexing finger 19 with the pulley 16 in order to find the second locking position.
  • the drum 7 is rotated by the motor 17 of the machine 1.
  • the indexing finger 19 is in contact with the pulley 16.
  • the actuator of the device is not put into operation.
  • the electrical breaking means 27a and 27b retain their state.
  • the first electric breaking means 27a connected to the detecting means is a closed contact since said detecting means 32 is also in contact with the peripheral surface of the pulley 16.
  • the indexing finger 19 and the detecting means 32 are no longer in touch.
  • the second electric breaking means 27b the indexing finger 19 is still not in contact with the tractor finger 14 so the contact remains open.
  • the elastic means of the index finger and the detection means are compressed.
  • This phase h is illustrated in FIG. 23.
  • the next phase i is the training phase of the tractor finger 14 by the ramp 21 when looking for the second position.
  • the indexing finger 19 is driven by the sliding of the interface 22 of the tractor finger 14 on the ramp 21 formed on the inner peripheral surface of the pulley 16.
  • the driving motor 17 of the drum 7 is put into operation until that the second electric breaking means 27b goes to a value of "1", that is to say that the indexing finger 19 is in contact with a portion of the tractive finger 14 forming a stop.
  • the first electric breaking means 27a goes into the operating state at "0".
  • the elastic means 26 and 33 of the index finger 19 and the detection means 32 are compressed.
  • the actuator 15 of the device 12 is not operated.
  • This phase i is illustrated in FIG. 23.
  • the pulley 16 of the drum 7 continues to rotate at a low speed and the index finger 19 is housed in a second notch 25 formed on the peripheral surface 24 of the pulley 16.
  • the rotation of the drum 7 can be generated by the load of laundry driving said drum by inertia.
  • the first electric breaking means 27a goes into the operating state at "1".
  • the detection means 32 is housed in a third notch 36 formed on the outer periphery 24 of the pulley 16.
  • the second electric breaking means 27b goes to the state "0".
  • the elastic means 26 of the index finger 19 drives said indexing finger 19 in said second notch 25. The same operation is applied to the detection means 32.
  • the device 12 disengages from the second locking position of the drum 7.
  • the actuator 15 of the device 12 is put into operation to move the traction finger 14 away from the pulley 16 and by Consequently, the indexing finger 19 and the detection means 32.
  • the means for locking the body door 2 is activated to enable this phase of disengagement of the device 12. This phase k is illustrated in FIG. .
  • the device for positioning and locking the rotary drum 12 may comprise at least one control means (not shown) of the washing machine and / or drying the laundry 1 to ensure the sequencing of the process phases.
  • Said at least one control means may comprise electrical means or a microcontroller.
  • the clutch system implementing a micromotor with a disengageable pinion could be replaced by a ratchet system to obtain the raising and lowering of the tractor finger for positioning and locking the drum. one or more positions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP06126022.0A 2005-12-13 2006-12-13 Vorrichtung und Verfahren zum Positionieren einer Trommel einer Waschmaschine und/oder Wäschetrockner Active EP1798323B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06126022T PL1798323T3 (pl) 2005-12-13 2006-12-13 Sposób i urządzenie do ustawiania obrotowego bębna maszyny do prania i/lub suszenia bielizny

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0512720A FR2894601B1 (fr) 2005-12-13 2005-12-13 Dispositif et procede de positionnement d'un tambour rotatif d'une machine a laver et/ou secher le linge

Publications (2)

Publication Number Publication Date
EP1798323A1 true EP1798323A1 (de) 2007-06-20
EP1798323B1 EP1798323B1 (de) 2013-04-24

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EP06126022.0A Active EP1798323B1 (de) 2005-12-13 2006-12-13 Vorrichtung und Verfahren zum Positionieren einer Trommel einer Waschmaschine und/oder Wäschetrockner

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Country Link
EP (1) EP1798323B1 (de)
ES (1) ES2409163T3 (de)
FR (1) FR2894601B1 (de)
PL (1) PL1798323T3 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013117244A1 (en) * 2012-02-09 2013-08-15 Electrolux Laundry Systems France Snc A locking device for a moving element, particularly of a washing machine, and associated method
US8522451B2 (en) 2008-07-02 2013-09-03 Whirlpool Corporation Method for spraying treating chemistry in a dispensing dryer
WO2016124036A1 (zh) * 2015-02-04 2016-08-11 青岛海尔洗衣机有限公司 一种洗衣机内桶的锁止机构及洗衣机
CN109518402A (zh) * 2017-09-18 2019-03-26 青岛海尔洗衣机有限公司 衣物处理设备及其定位装置
WO2022233228A1 (zh) * 2021-05-07 2022-11-10 青岛海尔滚筒洗衣机有限公司 一种定位环及洗衣机
WO2022262627A1 (zh) * 2021-06-16 2022-12-22 青岛海尔滚筒洗衣机有限公司 一种衣物处理设备的洗涤筒的定位单元及衣物处理设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0483909A1 (de) * 1990-10-30 1992-05-06 Whirlpool Europe B.V. Vorrichtung zum Anhalten der Trommel einer mantelbeschickbaren Trommelwaschmaschine in der Beschickungsposition
DE4132863A1 (de) * 1991-10-02 1993-04-08 Bosch Siemens Hausgeraete Einrichtung zum festhalten einer mantelbeschickbaren waeschetrommel in der beladestellung
EP0554194A1 (de) * 1992-01-31 1993-08-04 CROUZET Electrom˩nager Vorrichtung zum Anhalten der Trommel
FR2713675A1 (fr) * 1993-12-07 1995-06-16 Zanussi Elettrodomestici Lave-linge à chargement par le dessus, avec positionnement perfectionné du panier.
DE10003474A1 (de) * 1999-01-27 2000-08-03 Electrolux Syst Blanchisserie Verfahren zur rotatorischen Ausrichtung einer Waschmaschinentrommel und Waschmaschine zur Ausführung des Verfahrens

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0483909A1 (de) * 1990-10-30 1992-05-06 Whirlpool Europe B.V. Vorrichtung zum Anhalten der Trommel einer mantelbeschickbaren Trommelwaschmaschine in der Beschickungsposition
DE4132863A1 (de) * 1991-10-02 1993-04-08 Bosch Siemens Hausgeraete Einrichtung zum festhalten einer mantelbeschickbaren waeschetrommel in der beladestellung
EP0554194A1 (de) * 1992-01-31 1993-08-04 CROUZET Electrom˩nager Vorrichtung zum Anhalten der Trommel
FR2713675A1 (fr) * 1993-12-07 1995-06-16 Zanussi Elettrodomestici Lave-linge à chargement par le dessus, avec positionnement perfectionné du panier.
DE10003474A1 (de) * 1999-01-27 2000-08-03 Electrolux Syst Blanchisserie Verfahren zur rotatorischen Ausrichtung einer Waschmaschinentrommel und Waschmaschine zur Ausführung des Verfahrens

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8522451B2 (en) 2008-07-02 2013-09-03 Whirlpool Corporation Method for spraying treating chemistry in a dispensing dryer
WO2013117244A1 (en) * 2012-02-09 2013-08-15 Electrolux Laundry Systems France Snc A locking device for a moving element, particularly of a washing machine, and associated method
WO2016124036A1 (zh) * 2015-02-04 2016-08-11 青岛海尔洗衣机有限公司 一种洗衣机内桶的锁止机构及洗衣机
CN109881438A (zh) * 2015-02-04 2019-06-14 青岛海尔洗衣机有限公司 一种洗衣机内桶的锁止机构及洗衣机
US10704181B2 (en) 2015-02-04 2020-07-07 Qingdao Haier Washing Machine Co., Ltd. Locking mechanism for inner tub of washing machine, and washing machine
CN109518402A (zh) * 2017-09-18 2019-03-26 青岛海尔洗衣机有限公司 衣物处理设备及其定位装置
CN109518402B (zh) * 2017-09-18 2024-03-26 佛山市顺德海尔电器有限公司 衣物处理设备及其定位装置
WO2022233228A1 (zh) * 2021-05-07 2022-11-10 青岛海尔滚筒洗衣机有限公司 一种定位环及洗衣机
WO2022262627A1 (zh) * 2021-06-16 2022-12-22 青岛海尔滚筒洗衣机有限公司 一种衣物处理设备的洗涤筒的定位单元及衣物处理设备

Also Published As

Publication number Publication date
EP1798323B1 (de) 2013-04-24
ES2409163T3 (es) 2013-06-25
FR2894601A1 (fr) 2007-06-15
PL1798323T3 (pl) 2013-09-30
FR2894601B1 (fr) 2008-01-11

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