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
  • D06F95/00—Laundry systems or arrangements of apparatus or machines; Mobile laundries 
• • 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
  • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
  • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis

Definitions

• the invention relates to a device for the wet treatment of laundry, in particular a washer-extractor, according to the preamble of claims 1, 13 and 17, and a method according to the preamble of claim 20.
• Devices of the type mentioned here serve to subject laundry or other objects, for example carpets, mats or the like, to a wet treatment. Insofar as only laundry is referred to below, the use of the device for washing other objects should not be ruled out.
• the devices are mainly used to wash the laundry or other objects and then spin them. In technical jargon, these devices are referred to as washer extractors.
• Known devices of this type have openings for loading laundry and openings for unloading the laundry or other objects because the loading, washing, optionally spinning, and unloading takes place at least partially with different pivoting positions of the drum. These openings must be closed for treatment, namely washing and / or spinning, of the laundry, specifically by doors.
• the device is used between a dirt area and a clean area. These are preferably separated from one another by a partition.
• a dirt area and a clean area are preferably separated from one another by a partition.
• such devices had to have a separate loading and unloading opening.
• the loading opening is in the dirt area, while the unloading opening opens in the clean area.
• Each of the separate openings has its own door, an opening, preferably the loading opening, having to be assigned to the casing of the drum, which requires a particularly complex door to reliably close this opening.
• the invention has for its object to provide a method and a simple device for wet treatment of laundry, in particular a washer-extractor, with which at least loading and unloading can take place in different pivoting positions of the drum and / or the drum with as large an amount as possible Laundry or other objects can be loaded.
• a device for solving this problem has the features of claim 1. Accordingly, the or each drum has only a single opening, which can optionally be closed with a separate door. Compared to conventional devices, in particular with two openings in each drum, each of which must be able to be closed by a separate door, this device has a much simpler construction and is therefore less expensive to produce, because only the single opening in each drum (outer drum and inner drum) and, if necessary, only a single door is required to close the opening.
• the door is preferably designed as a separate door. This does not need to be pivoted together with the drum when the drum is transferred from the unloading position to the loading position, for example.
• the door which is thus stationary allows the same door to be used for loading and unloading, the drum being able to be pivoted back and forth between a loading and unloading position, that is to say the loading and unloading position of the drum need not be the same, what is necessary to use the device in partition operation when loading in the dirt area and unloading in the clean area.
• the door is separated from the drum in such a way that the door does not rotate with the drum and at least cannot be pivoted into the loading position with the drum. The door therefore does not restrict the angle for pivoting the drum.
• each drum can be pivoted into different positions, the opening also being able to assume different positions.
• the only opening of each drum can move, for example, from the unloading position into the loading position, the door not interfering, since, according to the invention, it does not move with the drum from, for example, the unloading position into the loading position. Therefore, each drum does not need to have multiple openings for unloading and loading. Even in the case of a device arranged in the partition area, the only opening for loading the drum can be pivoted into the dirt area, while for unloading it can be brought into a position in which the washed and possibly spun laundry is forced into the clean area.
• the door for opening the drum can preferably be moved towards the opening and also away from the opening and, if necessary, can be tilted slightly. Incidentally, the door is immovable relative to the drum. The door is moved back and forth to seal the opening for wet treatment. If the door is moved away from the opening, it opens the opening so that the drum can be pivoted. If the drum is pivoted, this takes place without the door, so that the drum can be pivoted through the door unhindered, in any pivot position. The opening is always cleared so that the drum can be brought into and loaded into any loading position by simply pivoting it through the (only) opening, which is also used for unloading.
• the device preferably has a rotatingly drivable inner drum and a water-impermeable drum housing surrounding it.
• the drum housing stands still relative to the inner drum, so it cannot be driven in rotation with the inner drum. at wet treatment, the inner drum rotates within the stationary drum housing.
• the drum housing also has only a single opening which corresponds to the opening of the inner drum.
• the opening of the drum housing is preferably arranged adjacent to the opening of the inner drum. Then the door is assigned to the opening of the drum housing, the opening of the inner drum lying adjacent to the opening of the drum housing being indirectly closable by the door assigned to the opening of the drum housing. If a door for closing the opening of the drum has been mentioned in the foregoing, in the case of an inner drum surrounded by a drum housing, the same door is meant, which then closes the opening of the drum housing.
• the door has at least one peripheral seal, which corresponds to a sealing surface surrounding the opening of the drum housing.
• This creates an effective seal between the inner drum rotating during the wet treatment between the door which is stationary during the wet treatment and the drum housing which is also stationary.
• the seal makes it possible to move the door away from the drum housing when the drum housing is pivoted with the inner drum into the loading position and possibly also the unloading position by the axis of rotation of the inner drum running horizontally during the wet treatment being given a different, for example vertical, course.
• the door is mounted on a door frame.
• the door and the door frame can be moved axially back and forth to close the opening of the housing, the seal preferably being associated with the door frame.
• the door is preferably hinged to the door frame so that the door can be moved, in particular pivoted, relative to the door frame for opening and closing. This means that the drum can be loaded when the inner door part is open.
• the entire door or only the door frame is mounted on a preferably fixed door support.
• a flexible connecting means between the door and the fixed door carrier is provided.
• the door carrier holds the entire door or the door frame and the inner door part, in particular when the door has moved away from the opening of the drum housing.
• the door bracket thus holds the entire
• the door is essentially immobile when the drum housing is pivoted with the inner drum, for example in order to transfer the device into the loading position.
• the door is arranged in a partition between the dirty area with unwashed laundry and the clean area with washed laundry.
• the door forms part of the partition, the partition also serving as a door support.
• the inner drum together with the drum housing surrounding it, can preferably be pivoted continuously about the pivot axis into at least any loading positions.
• the drum housing with the inner drum can preferably also be pivoted into any unloading positions.
• the device can thus be used universally, either as a normal version outside a clean area (without a partition) or as a partition design.
• the drum can also be swiveled into a position for unloading which is different from the position in which the wet treatment takes place, deviates greatly. Since the inner drum with the drum housing can be pivoted as desired into the loading position and optionally also into the unloading position, the device can be adapted to any spatial conditions. So loading and / or unloading can take place at positions of the inner drum in the drum housing that make loading and unloading the easiest under the given circumstances.
• the pivot axis is preferably formed by two opposite stub axles, which, lying on a common (imaginary) axis, are fastened at opposite points on the outside of the drum housing.
• a direct swivel drive is assigned to at least one of these stub axles.
• the preferably pivoting of the drum housing with the inner drum can be realized in a space-saving manner.
• at least one of the stub axles for forming the swivel axis is assigned a feed for media for wet treatment of the laundry. This makes it easy to supply media in spite of the fact that the drum housing can be pivoted with the inner drum.
• a free end of the at least one axle stub is preferably assigned a rotary connection of at least one feed line for the media.
• the rotary connection enables a leak-free feed of the media in spite of the axle stub rotating for pivoting the inner drum, at any time and in any pivoting position of the drum housing with the inner drum located therein.
• a further device for solving the above-mentioned object which may also be a preferred development of the devices described above, has the features of claim 17. Accordingly, provision is made for the media required for wet treatment to be passed through a door assigned to the single opening of the drum housing or the inner drum into the drum housing or the inner drum which can be driven to rotate therein.
• the door is particularly suitable if, according to the devices described above, it neither rotates with the inner drum which can be driven in rotation nor can it be pivoted with the drum housing, particularly for feeding the media. Because the door is essentially stationary, it can be provided with at least one fixed supply line for at least one medium, preferably all media. A rotary connection is therefore unnecessary. In this way, leaks that can occur during the rotary connection are reliably avoided.
• the at least one connection for all or only individual media can expediently be assigned to the stationary door frame, and preferably to a part of the same, which is covered by the circumferential seal between the door frame and the Opening of the drum housing is included.
• Rigid connections for connecting the at least one supply line for one or more media can then be assigned to the fixed door frame, but also to the pivotable inner part of the door.
• the loading is carried out with the axis of rotation of the inner drum perpendicular or inclined relative to the vertical, and also to drive the inner drum in rotation during loading, either during the entire loading or only part of the loading.
• This method allows the inner drum to be loaded with a relatively large amount of laundry.
• the method according to the invention allows the inner drum to be loaded with a significantly larger amount of stiff objects, such as carpets or mats, compared to loading when the inner drum is stationary.
• the inner drum is loaded during a rotating drive of the same with a rotational frequency which exerts a centrifugal acceleration on the laundry in the inner drum which corresponds to up to 25 times, in particular up to 20 times, the gravitational acceleration. It has been shown that bulky items of laundry or objects are also placed on the inner surface of the rotatingly driven inner drum and an inner, central area of the inner drum is constantly cleared for further items of laundry or objects. As a result, the inner drum can be loaded with a relatively large amount of bulky items of laundry or objects.
• the axis of rotation can only be pivoted to a maximum extent relative to the vertical position that the items of laundry or objects still essentially face one of the openings for loading. hit the bottom of the inner drum.
• the central, inner area of the inner drum is kept particularly free for loading it with subsequent objects or items of laundry. This is usually achieved if the axis of rotation of the inner drum is inclined by a maximum of 60 °, preferably not more than 45 °, when loading relative to the vertical.
• FIG. 1 is a schematic view of the device according to a first embodiment of the invention in a loading position
• FIG. 2 shows the device of FIG. 1 in an alternative loading position
• FIG 3 shows the device of FIGS. 1 and 2 in a wet treatment position, but not yet in the wet treatment position
• FIG. 4 shows the device of FIG. 3 with the door also in the wet treatment position
• FIG. 5 shows the device of FIGS. 1 to 4 in the unloading position
• FIG. 6 shows a device according to a second exemplary embodiment of the invention in a loading position
• FIG. 7 shows the device of FIG. 6 in a wet treatment position with the door not yet in this position
• FIG. 8 shows the device of FIG. 7 with the door also in the wet treatment position
• Fig. 9 shows the device of Figs. 6 to 8 in an unloading position.
• the device shown in FIGS. 1 to 5 shows a device designed as a washer-extractor 10 for normal commercial use.
• the washer-extractor 0 has an inner drum 12 which can be driven to rotate about a pivotable axis of rotation 11.
• the inner drum 12 has only one essentially full-area opening 13 on one end face.
• the washer-extractor 10 has a waterproof drum housing 14 which surrounds the water-permeable inner drum 12 and which is designed to be stationary relative to the inner drum 12. In contrast to the inner drum 12, the drum housing 14 cannot be driven to rotate.
• the drum housing 14 also has a single, almost full-area opening 15 on one end face.
• the opening 15 of the drum housing 14 is located in that end face of the drum housing 14 to which the opening 13 of the inner drum 12 also faces, so that the openings 13 and 15 are adjacent to one another and thus correspond to one another.
• the inner drum 12 is mounted on a closed, rear end face 16 on a drive shaft, not shown in the figures, of a drive, preferably an electric motor 17. If necessary, a gear can be assigned to the electric motor 17. Then the inner drum 12 with the closed rear end face 16 is mounted on the output shaft of the transmission.
• the electric motor 17 (and possibly the gearbox) are non-rotatably fastened to a closed rear wall 18 of the drum housing 14. As a result, the rear wall 18 of the drum housing 14 carries the inner drum 12 and the drive.
• the drum housing 14 is mounted elastically, preferably on air springs 19, on a frame foundation 20.
• the frame foundation 20 is formed from a fixed, lower foundation part 21 and, in contrast, a pivot frame 23 which can be pivoted about a horizontal pivot axis 22 which runs transversely to the axis of rotation 11 of the inner drum 12.
• the drum housing 14 with the inner drum 12 arranged therein does not rest directly on the air springs 19. Rather, two parallel supports 24 are arranged on the air springs 19 arranged on the frame foundation 20, which support the drum housing 14.
• the two supports 24 are assigned to opposite sides of the drum housing 14, namely at a distance such that a part of the drum housing 14 is located between the supports 24 and can project downward between the supports 24. Accordingly, each of the two carriers 24 is mounted on two of the four air springs 19.
• At least one stub axle 26 is assigned a direct drive 28, which in the exemplary embodiment shown is formed from an electric motor with a reduction gear.
• a slew gear motor for the stepless pivoting of the drum housing 14 with the inner drum 12. From the direct drive 28, the drum housing 14 with the inner drum 12 is infinitely and continuously pivotable about the pivot axis 27 into different positions, namely any loading positions (FIGS. 1 and 2), a wet treatment position for washing and spinning (FIG. 4) and any unloading - Stellu ⁇ gen (Fig. 5).
• FIG. 1 shows a loading position of the washer-extractor 10, in which the drum housing 14 with the inner drum 12 is pivoted by the direct drive 28 such that the axis of rotation 11 of the inner drum 12 extends perpendicularly.
• 2 shows an alternative loading position, in which the axis of rotation 11 runs obliquely, specifically in the exemplary embodiment shown at 60 ° to the vertical.
• any other loading positions are conceivable, but should not exceed an inclination of 60 ° to the vertical. The most effective loading results if the inclination with respect to the vertical is only 50 °, preferably only 40 °.
• FIG. 4 shows the operating position of the washer-extractor 10, in which the laundry is washed and spun.
• the drum housing 14 with the inner drum 12 of the washer-extractor 10 rotatably mounted therein is pivoted, starting from the operating position (FIG. 4) to such an extent that the axis of rotation 11 of the inner drum 12 in the direction of the opening 13 or 15 is inclined slightly downwards relative to the horizontal (FIG. 5).
• This tendency to unload the washer-extractor 10 can preferably be changed continuously during unloading according to requirements and can be arbitrary as a result of the direct drive 28.
• a corresponding program can be provided to control the position of the drum housing 14 with the inner drum 12 arranged therein during loading and / or unloading. In addition, loading and / or unloading the Washer-extractor with an at least temporarily rotating drive of the inner drum 12.
• the washer-extractor 10 has only a single door 29.
• the only one door 20 is used to close the single opening 15 in an end face of the drum housing 14 opposite the rear wall 18 and at the same time to close the single opening 13 of the inner drum 12.
• the door 29 designed as a separate door 29 which is not connected to the drum housing 14 and the inner drum 12. If the door 29 closes the opening 15 of the drum housing 14, this also simultaneously leads to a closure of the single opening 13 on the end face of the inner drum 12 opposite the end face 16, which is not direct, but indirect.
• the door 29 is along a straight horizontal path, which is in the operating position of the washer-extractor 10 (FIGS. 3 and 4) on the axis of rotation 11 of the inner drum 12 or extends it axially, away from the opening 15 and closed the same can be moved. Otherwise, the door 29 is fixedly connected to a door carrier 30 relative to the inner drum 12 and the drum housing 14. Accordingly, the door 29 does not rotate when the washer-extractor 10 is operated with the inner drum 12 which can be driven in rotation. The door 29 cannot be pivoted with the drum housing 14 and the inner drum 12 arranged therein.
• the door support 30 is rigidly and absolutely immovably connected to the supports 24 of the drum housing 14. As a result, in contrast to the door 29, the door carrier 30 cannot be moved towards and away from the openings 13 and 15. So that the door 29 can be moved along the axis of rotation 11 to and from the openings 13 and 15, there is a flexible connecting means 31 between the outer periphery of the door 29 and the door support 30, which in the exemplary embodiment shown is a circumferential, tubular bellows 31 is formed.
• the connecting means can also be formed from a simple elastic hose, for example a rubber hose.
• the door 29 Due to the elasticity of the bellows 31 or other connecting means sealingly connecting the door 29 to the door carrier 30, the door 29 can also be moved towards and away from the door carrier 30, that is to say the distance between the door 29 and the door carrier 30 running parallel thereto can be changed (FIG 3 and 4).
• the door 29 is also connected to the door support 30 by guides 32.
• Two guides 32 are shown in the figures. It is conceivable to provide more than two guides 32 or just a single guide.
• the guides 32 stabilize the door 29 on the movement path extending the axis of rotation 11 during the movement towards the opening 15 or 13 and during the movement away from the opening 13 or 15, because the bellows 31 between the door 29 and the door carrier 30 is elastic and can not form a guide of the door 29.
• the axial movement of the door 29 on the axis of rotation 11 can take place simultaneously through the guides 32 if these are designed as spindle drives.
• additional drives not shown in the figures, for moving the door 29, for example pneumatic cylinders.
• the door 29 is formed from three sections, namely an outer circular ring section 33, a central profile section 34 and an inner circular section 35.
• the circular section 35 can be formed by a glass pane, as a result of which the door 29 has a sight glass.
• the guides 32 engage the inner circular section 35 of the door 29.
• the profile cross section 34 is curved inwards in a special way, in such a way that the profile cross section 34 has an outer frustoconical closing section 36.
• the closing section 36 projects into the opening 13 of the inner drum 12, as a result of which the cylindrical edge of the opening 13 surrounds the closing section 36 with a slight clearance or clearance , As a result, the opening 13 of the inner drum 12 is largely closed by the door 29, namely the closing section 36 of the same (FIG. 4), but not completely sealed.
• the door 29 has a circumferential seal 37, which serves to seal the opening 15 of the drum housing 14 in the operating position of the washer-extractor 10, at least to the extent that no liquid can escape from the drum housing 14 during operation of the washer-extractor 10.
• the seal 37 is formed from two circular circumferential sealing profiles 38, 39 which run concentrically to one another.
• the sealing profiles 38, 39 are assigned to the outer circular ring section 33, in the exemplary embodiment shown approximately in the region of the transition from the circular ring section 33 to the profile cross section 34. Both sealing profiles 38 project from the inner wall of the circular ring section 33 facing the opening 15 in the direction of the drum housing 14.
• the distance between mutually facing sealing surfaces of the sealing profiles 38 and 39 is designed such that a front part of a cylindrical sealing ring 40 surrounding the opening 15 of the drum housing 14 engages between the sealing profiles 38 and 39 when the door 29 in the operating position of the washer-extractor 10 against the Opening 15 has moved (Fig. 4).
• the sealing ring 40 of the drum housing 14 corresponds to the sealing profiles 38 and 39 on the door 29 assigned to its opposite lateral surfaces in such a way that there is an at least liquid-tight closure of the opening 15 of the drum housing 14 by a seal between the sealing profiles 38 and 39 of the door 29 and the sealing ring 40 of the drum housing 14 comes.
• the supply of media to the washer-extractor 10 is designed in a special manner according to the invention.
• These media are mainly wash water and wash additives, in particular detergents, which have to be introduced into the washer-extractor 10 from outside before and / or during washing.
• the water generated when spinning the laundry must be drained off.
• the media supply and / or removal not shown in the figures can be done in two different ways:
• the door 29, in particular the inner circular section 35 thereof, is provided with at least one connection to which a passage in the door 29 is assigned.
• This at least one connection then serves to supply all media, in particular water and detergent, to the continuous washing mine 10.
• the door 29 since the door 29 only linearly to and from the drum housing 14 along a relatively short path this can be moved away, but is otherwise fixed, fixed or almost fixed connections for lines for supplying media to the washer-extractor 10 can be used. It is sufficient if the supply line for the media is formed entirely or only along a short section of flexible hoses in order to be able to take part or compensate for the only small travel path of the door 29 along the axis of rotation 11 of the inner drum 12.
• the stub shaft 26 has a central axial through hole. This through hole is connected to a rotary connection on the outer free end face of the stub shaft 26.
• the at least one supply line for media is in turn connected to the rotary connection.
• FIGS. 6 to 9 show a second embodiment of the device, namely a washer-extractor 41 in the so-called partition arrangement or partition design.
• This washer-extractor 41 is used in clean areas where special hygienic requirements must be met.
• the washer-extractor 41 is loaded with unwashed laundry in a dirt area 42.
• the washed and spun laundry is unloaded in a clean area 44 isolated from the dirt area 42 by a partition 43.
• the washer-extractor 41 is basically constructed in the same way as the washer-extractor 10. In this respect, reference is made to the previous description of the washer-extractor 10 and the same parts are the same Reference numerals for the washer-extractor 41 of FIGS. 6 to 9 are used.
• the drum housing 14 of the washer-extractor 41 which has the rotatable inner drum 12, can be pivoted about the pivot axis 22 and the pivot axis 27 running parallel thereto.
• at least one bellows cylinder 45 that can be moved apart and moved along a vertical axis is provided.
• the bellows cylinder 45 is arranged at an end of the frame foundation 20 remote from the pivot axis 22 between the fixed lower foundation part 21 and the pivot frame 23. 6 shows a possible loading position of the washer-extractor 41, the axis of rotation 11 of the inner drum 12 running vertically.
• the single openings 13 and 15 of the inner drum 12 or of the drum housing 14, which are then located at the top, can thus be loaded with laundry to be washed from above in the dirt region 42.
• the washer-extractor 41 can be loaded from other dirty positions with dirty laundry in which the axis of rotation 11 runs obliquely to the vertical, for example the drum housing 14 with the inner drum 12 is in a position as it is is shown in FIG. 2 in connection with the washer-extractor 10.
• the drum housing 14 can be pivoted about the pivot axis 27 by the direct drive 28.
• FIG. 8 shows an operating position of the washer-extractor 41, in which the laundry is washed and then spun.
• the axis of rotation 11 of the rotatably drivable inner drum 12 extends horizontally.
• the drum housing 14 is also pivoted about the pivot axis 27.
• the washer-extractor 41 is unloaded as shown in FIG. 9 with the drum housing 14 pivoted about the pivot axis 22 with the inner drum 12 arranged therein. This pivoting takes place by extending the bellows cylinder 45, as a result of which the pivot frame 23 of the frame foundation 20 is at the pivot axis 22 away end is raised.
• the axis of rotation 11 extends slightly inclined to the horizontal, namely in the direction of the openings 13 and 15 downward, whereby the preferably rotating drive of the inner drum 12, the washed laundry through the openings 13 and 15 into the clean area 44 on the opposite of the dirt area 42 Side of the partition 43 arrives.
• the washer-extractor 41 also has a specially designed door 46 for closing the single opening 15 of the drum housing 14 and the single opening 13 of the inner drum 12.
• This door 46 is also arranged separately from the drum housing 14 of the inner drum 12, so that the door 46 from the drum housing 14 is separable in order to pivot the drum housing 14 with the inner drum 12 into the respective loading position about the pivot axis 27.
• the door 46 is arranged to be stationary relative to the inner drum 12 which can be driven in rotation, as a result of which the door 46 cannot be driven in rotation with the inner drum 12.
• the door 46 does not take part in the pivoting movement of the drum housing 14 with the inner drum 12 around the pivoting Axis 27 in part when the drum housing 14 is pivoted with the inner drum 12 into and out of the loading position.
• the door 46 can also be moved back and forth on a straight path, which lies on the axis of rotation 11, to the openings 13 and 15 and away from the openings 13 and 15.
• the door 46 can also be pivoted with the drum housing 14 and the inner drum 12 when the drum housing 14 and the inner drum 12 are pivoted about the pivot axis 22 on the frame foundation 20 into the unloading position.
• this pivoting path of the door 46 is limited to the relatively small pivoting angle of the drum housing 14 of the inner drum 12 for unloading the washer-extractor 41. This angle is a maximum of 30 °, preferably only about 15 ° to 20 ° (FIG. 9).
• the door 46 is formed from an inner door 47 and a door frame 48 surrounding it.
• the door frame 48 is connected to a door carrier 50 via guides 49, which can be designed like the guides 32 in the washer-extractor 10.
• the door carrier 50 is in turn firmly connected to the swivel frame 23 of the frame foundation 20.
• the door support 50 is rigidly connected to the supports 24 of the swivel frame 23.
• the door support 50 also forms part of the partition 43.
• the door support 50 or this part of the partition 43 is surrounded by an elastic membrane 51, which also forms part of the partition 43.
• the elastic membrane 51 makes it possible to pivot the door support 50 forming an inner part of the partition wall 43 with respect to the vertical plane of the partition wall 43 when the drum housing 14 is pivoted with the inner drum 12 about the pivot axis 22 into the unloading position (FIG. 9).
• the membrane 51 can be surrounded by a further fixed part of the partition 43, not shown in the figures, which is located in a vertical plane of the partition 43, in which the door carrier 50 and the membrane 51 also lie when the drum housing 14 is located with the inner drum 12 is not in the unloading position (Fig. 6 to 8).
• the door 46 can be moved back and forth on a linear path that runs perpendicularly through the plane of the door 46 and lies on the axis of rotation 11 of the inner drum 12 (when it is in the operating position of the washer-extractor 41). As a result, the door 46 can be moved toward and away from the openings 13 and 15. At the same time, the parallel distance of the door 46 to the door carrier 50 and thus to the partition 43 becomes thereby changed.
• the door 46 In the operating position of the washer-extractor 41, the door 46 is located close to the door carrier 50 or the partition 43 (FIG. 8). In contrast, in the loading position of the washer-extractor 41, the door 46 is at a greater distance from the door carrier 50 (FIG. 6).
• the guides 49 serve to guide the door 46 when approaching the door carrier 50 and when moving away from it on the horizontal movement path which extends the axis of rotation 11.
• the guides 49 if they are designed as spindles, can be used to move the door 46 axially.
• the door 46 namely the annular door frame 48, is connected to the door carrier 50 by a bellows 31 or a flexible hose. As a result, the door 46 with the inner door 47 and the door frame 48 can be moved toward and away from the door carrier 50.
• the inner door 47 is composed of an outer circular ring section 52, a profile cross section 53 surrounding it and an inner circular section 54.
• the circular section 54 and the profile section 53 are formed like the profile section 34 and the circular section 35 of the door 29 of the washer-extractor 10.
• the circular ring section 52 of the door 46 is smaller than the circular ring section 33 of the door 29 because the circular ring section 52 is still surrounded by the door frame 48.
• the circular ring section 52 and the door frame 48 of the door 46 together are approximately as large as the circular ring section 33 of the door 29.
• a seal 55 for sealing the door 46 from the opening 15 of the drum housing 14 is designed like the seal 37 of the door 29, namely it is composed of two concentric, annular sealing profiles 56 and 57.
• An inner sealing profile 56 is arranged in the vicinity of the outer edge of the annular section 52 of the inner door 47, while an outer sealing profile 57 is arranged in the vicinity of the inner edge of the door frame 48.
• the seal 55 is thus divided by the arrangement on the door frame 48 on the one hand and on the circular ring section 52 on the other.
• a special feature of the door 46 is that the inner door 47 can be pivoted to open (FIG. 9) relative to the door frame 48 surrounding it, specifically by one horizontal axis of rotation 58 which runs parallel to the pivot axes 22 and 27.
• the axis of rotation 58 thereby forms a type of hinge, with which the inner door 47 is pivotally connected to the outer door frame 48.
• the door 46 has a “door in the door” because the inner door 47 of the door 46 can be pivoted to the door frame 48 thereof.
• the pivoting of the inner door 47 relative to the door frame 48 is carried out by a pivot drive 59, which in the exemplary embodiment shown is formed from an electric motor with a reduction gear.
• the slowly rotating drive shaft of the reduction gear is non-rotatably connected to the axis of rotation 58.
• the axis of rotation 58 is non-rotatably fastened to the inner door 47, the inner door 47 with the axis of rotation 58 being pivotable up and down relative to the door frame 48 by the pivot drive 59.
• the media can be supplied both through the door 46, preferably the inner door 47, and also through an axle stub 26 to form part of the pivot axis 27 of the drum housing 14 with the inner drum 12. Since the inner door 47 of the washer-extractor 41 can be swiveled up and the connections for the media supply would have to be assigned to this inner door 47, the media supply in the washer-extractor 41 advantageously takes place through at least one of the two stub axles 26. With regard to the specific configuration of the media supply, which is also not shown in FIGS. 6 and 9, reference is made to the above description of the washer-extractor 10.
• the washer-extractor 10 is loaded either with the inner drum 12 fully pivoted up, the axis of rotation 11 being perpendicular (FIG. 1) or with an inclined inner drum 12. In both cases, the openings 13 and 15 in the inner drum 12 and in the drum housing 14 are directed upward, so that the washer-extractor 10 can be loaded with items of laundry or other objects from above or also obliquely from the side. If the loading occurs with the axis of rotation 11 of the inner drum 12 not standing perpendicularly, the inner drum 12 can be loaded with the axis of rotation 11 1 inclined at a maximum of 60 ° to the vertical.
• the axis of rotation 11 is less inclined during loading, and only so far that the axis of rotation 11 of the inner drum 12 is only inclined by up to 50 °, in particular only 40 °, with respect to the vertical.
• the maximum inclination of the axis of rotation 11 is expediently selected such that the items of laundry or objects at least partially reach a bottom region of the inner drum 12 opposite the opening 13 of the inner drum 12 during loading.
• a further peculiarity of the method according to the invention consists in driving the inner drum 12 rotating about the vertical or inclined, in particular slightly inclined, inner drum 12, preferably continuously, while the washer-extractor 10 is being loaded.
• This drive takes place at a rotational frequency which is lower than that at which the drum 12 is driven during the treatment of the laundry or objects.
• the rotational frequency with which the inner drum 12 of the washer-extractor 10 is driven during loading is preferably so great that the items of laundry or objects on the inside of the jacket of the inner drum 12 are subjected to a centrifugal acceleration that does not exceed 25 times the acceleration due to gravity, preferably is in the range of 5 to 20 times the acceleration due to gravity.
• the rotational frequency of the inner drum 12 during loading is preferably increased with increasing loading of the inner drum 12.
• the control of the rotational speed of the inner drum 12 during the loading is then expediently program-controlled, in particular depending on the type of laundry or objects to be loaded. The more bulky the items of laundry or items, the higher the rotational frequency with which the inner drum 12 is driven when the washer-extractor 10 is loaded.
• the inner drum 12 can further be driven during the entire loading process of the washer-extractor 10, but also only during a partial area of the loading process, in particular during an end phase of the loading.
• the speed at which the inner drum 12 is driven during loading can also change during the loading, in particular increase towards the end of the loading.
• the inner drum 12 of the washer-extractor 10 can also be driven in rotation during the unloading of the washer-extractor 10.
• the drive of the inner drum 12 takes place with only a relatively low rotational frequency, which is below 5 times the acceleration due to gravity.
• the change in the inclination of the axis of rotation 11 when the washer-extractor 10 is unloaded can be controlled in a program-controlled manner, as can the rotational frequency of the inner drum 12.
• the method described above is not only suitable for a washer extractor according to the exemplary embodiment of FIGS. 1 to 5, but also for the washer extractor according to the second exemplary embodiment of the invention (FIGS. 6 to 9) and any other washer extractor.
• the method according to the invention described above is also suitable for washer-extractors which are not used between a dirt area and a clean area and are therefore not assigned to a partition.
• the method according to the invention is also suitable for washer extractors with a single opening or also a plurality of openings, the or each opening being able to be closed as desired, so that the method according to the invention is not restricted to the washer extractors 10 and 41 shown in FIGS. 1 to 9 , rather refers to all types of washer extractors.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
• Treatment Of Fiber Materials (AREA)
• Detail Structures Of Washing Machines And Dryers (AREA)

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• 2004
  • 2004-01-16 DE DE102004002585A patent/DE102004002585A1/de not_active Withdrawn
• 2005
  • 2005-01-14 CA CA002553238A patent/CA2553238A1/fr not_active Abandoned
  • 2005-01-14 US US10/597,051 patent/US20070151042A1/en not_active Abandoned
  • 2005-01-14 WO PCT/EP2005/000349 patent/WO2005068707A1/fr active Application Filing
  • 2005-01-14 AT AT05700943T patent/ATE460531T1/de not_active IP Right Cessation
  • 2005-01-14 EP EP05700943A patent/EP1704276B1/fr not_active Not-in-force
  • 2005-01-14 DE DE502005009187T patent/DE502005009187D1/de active Active
  • 2005-01-14 ES ES05700943T patent/ES2341656T3/es active Active

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