JP2013099393A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine which facilitates continuous suppression of adhesion of stains or soap scum to the inside of an outer tub thereof.SOLUTION: A drum washing machine comprises: a rotary drum which accommodates the laundry and is inclined so as to make a center of rotation horizontal or a side of an opening high; an outer tub which includes the rotary drum and stores washing water; a housing which supports the outer tub; and a motor which drives the rotary drum. In the drum washing machine, an outer tub inner face cleaning body is attached from the inside of the rotary drum onto a bottom plate of the rotary drum, and at least a part of the outer tub inner face cleaning body is brought into contact with a bottom plate inner face of the outer tub.

Description

  The present invention relates to a washing machine having means for washing clothes.

  2. Description of the Related Art Conventionally, a washing machine is provided with an inner tub that rotates inside an outer tub, and by controlling rotation of the water supply / drainage and the inner tub, washing, rinsing, dehydration, and drying with a drying function are performed. However, every time washing is performed, the sebum stains attached to the clothing and the soap residue produced by the reaction of the detergent with the minerals in the tap water gradually become inside the outer tub in the gap between the outer tub and the inner tub. Deposit on the outside of the inner tank.

  Therefore, in Patent Document 1 below, a removable or fixed brush is set in the outer tub to clean the outside of the inner tub, or a similar brush is set in the inner tub to clean the inside of the outer tub. A washing machine has been proposed.

JP 2004-141587 A

  However, in general washing machines, the inner tub is fixed to the motor shaft and cannot be removed, and the gap between the outer tub and the inner tub in the vicinity of the opening is extremely small to prevent clothing and foreign matter from entering. Designed to be narrow. Therefore, in the case of a washing machine in which a brush is inserted and installed in a limited gap between the outer tub and the inner tub as in the invention described in Patent Document 1, even if the brush is worn or soiled, this brush It is difficult to remove the tank, and there is a possibility that the cleaning function of the tank may be deteriorated by using it as it is.

  An object of the present invention is to provide a washing machine that can easily keep dirt and soap residue from adhering to the inside of an outer tub.

  An inner tub for storing clothes, an outer tub that encloses the inner tub and stores washing water, a casing that supports the outer tub, and a motor that drives the inner tub. The inner tank was provided with a mounting portion for the outer tank inner surface cleaning body that is detachable from the inside of the inner tank.

  According to the present invention, it is possible to provide a washing machine that can easily suppress the adhesion of dirt and soap residue to the inside of the outer tub.

The perspective view of the washing and drying machine concerning this embodiment is shown. Sectional drawing of the washing process of the washing-drying machine which concerns on this embodiment is shown. Sectional drawing in the drying process of the washing-drying machine which concerns on this embodiment is shown. The schematic sectional drawing of the washing-drying machine provided with the 1st outer tank inner surface cleaning body and 2nd outer tank inner surface cleaning body which concern on this embodiment is shown. It is a fragmentary perspective view inside the rotating drum of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 1st Example. AA sectional drawing which shows the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 1st Example. It is a fragmentary perspective view inside the rotating drum of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 1st Example, and shows the middle process which removes a cleaning brush. It is AA sectional drawing which shows the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 1st Example, and shows the state of FIG. It is a fragmentary perspective view inside the rotating drum of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 1st Example, and shows the middle process which removes a cleaning brush. It is AA sectional drawing which shows the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 1st Example, and shows the state of FIG. It is a fragmentary perspective view inside the rotating drum of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 1st Example, and shows the state which removed the cleaning brush. It is a partial disassembled perspective view inside the rotating drum of the washing / drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 2nd Example. It is a fragmentary perspective view inside the rotating drum of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 3rd Example, and shows the state which set the cleaning brush. It is CC sectional drawing of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 3rd Example, and shows the state of FIG. It is CC sectional drawing of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 3rd Example, and shows the middle process which removes a cleaning brush. It is a fragmentary perspective view inside the rotating drum of the washing-drying machine provided with the 2nd outer tank inner surface cleaning body which concerns on a 4th Example. It is DD sectional drawing of the washing-drying machine provided with the 2nd outer tank inner surface cleaning body which concerns on a 4th Example, and shows the state which set the cleaning brush. It is CC sectional drawing of the washing-drying machine provided with the 2nd outer tank inner surface cleaning body which concerns on a 4th Example, and shows the middle process which removes a cleaning brush. It is AA sectional drawing of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 5th Example, and shows the state which set the cleaning brush. The EE cross section orthogonal to the rotating shaft which shows the arrangement | positioning relationship between the rotating drum of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 6th Example, an outer tank, and an outer tank inner surface cleaning body. FIG. The EE cross section orthogonal to the rotating shaft which shows the arrangement | positioning relationship between the rotating drum of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 6th Example, an outer tank, and an outer tank inner surface cleaning body. FIG. The arrangement | positioning relationship of the rotating drum of an washer / dryer provided with the 1st outer tank inner surface cleaning body and 2nd outer tank inner surface cleaning body which concern on this embodiment, an outer tank, and an outer tank inner surface cleaning body is shown. It is EE sectional drawing orthogonal to the rotating shaft. It is a fragmentary perspective view inside the rotating drum of the washing-drying machine provided with the 1st outer tank inner surface cleaning body which concerns on a 7th Example. The block diagram of the control apparatus of the washing / drying machine which concerns on this embodiment is shown. The flowchart of the control processing program of the washing / drying machine which concerns on this embodiment is shown. It is a schematic sectional drawing which shows another Example of the washing / drying machine which concerns on this embodiment.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of a washing / drying machine according to the present invention. On the upper part of the base 1, an outer frame 2 composed of a steel plate and a resin molded product is placed. A door 3 and a front cover 22 for taking clothes 30 in and out are provided on the front surface of the outer frame 2, and a back cover 23 is provided on the back surface of the outer frame 2.

  FIG. 2 shows a central sectional view of the washing and drying machine from the washing process to the dehydration process. FIG. 3 is a cross-sectional view of the washing / drying machine during the drying process. In FIGS. 2 and 3, a portion from the fan to the heater, which will be described later, is shown as a simplified schematic diagram for explanation.

  FIG. 4 is a schematic explanatory view showing a state in which the first outer tub inner surface cleaning body 13 and the second outer tub inner surface cleaning body 14 having the brush of the present invention are attached to a rotating drum 29 that houses clothing. And represents a longitudinal section of the washing and drying machine according to the present invention.

  An outer tub 20 for storing washing water is supported inside the casing forming the outer frame 2, and the outer tub 20 is supported by a plurality of lower suspensions 21. The rotating drum 29, which is an inner tub contained in the outer tub 20, has a garment 30 that is inserted with the door 3 opened. On the outer periphery of the opening of the rotating drum 29, vibration due to unbalance of the garment 30 during dehydration. Is provided with a fluid balancer 31. The rotating drum 29 is driven by being directly connected to a drum driving motor 36 provided on the back surface of the outer tub 20. A rubber packing 38 made of an elastic body is attached to the opening of the outer tub 20. The packing 38 serves to maintain the watertightness between the outer tub 20 and the door 3. This prevents water leakage during washing, rinsing and dehydration. The rotating drum 29 is disposed so as to be inclined so that the center of rotation is horizontal or the opening side is high, and a disk 29 b that is a cylindrical side wall and a disk that forms the inner surface of the rotating drum 29 opposite to the door 3. Shaped bottom plate 29a. In addition, the body plate 29b has a large number of small holes (not shown) for centrifugal dehydration and ventilation, and when the water is squeezed out during the dehydration process, water hits the inner peripheral side surface of the outer tub 20 to cause dirt, etc. Is difficult to adhere.

  The first outer tub inner surface cleaning body 13 is provided inside the bottom plate 29a of the rotating drum 29, and the second outer tub inner surface cleaning body 14 is provided inside the body plate 29b of the rotating drum 29. Is also configured to be removable from the inside of the rotary drum 29.

  Further, the drainage port 37 opened in the bottom wall of the outer tub 20 is connected to the drainage hose 9 via the drainage valve 8. The drying device 6 that dries the clothes 30 in the rotary drum 29 includes a water-cooled dehumidifying duct 5, a fan 61 that is a blowing means, and a heater 62 that is a heating means. The heat source of the heating means is not limited to the heater 62 and may be a heat pump. The vent 32 provided in the bottom plate of the outer tub is connected to the water-cooled dehumidifying duct 5 substantially horizontally using the flexible bellows 4, and the upper end of the water-cooled dehumidifying duct 5 is provided on the front surface of the washing and drying machine. It is connected substantially horizontally to the drying filter 19 that collects lint, which is lint. Further, the outlet of the drying filter 19 and the inlet of the fan 61 are connected, and the heater 62 is connected to the downstream side of the fan 61. The outlet of the heater 62 and the blowout nozzle 11 are connected to the outer tub 20 substantially vertically by the bellows 7 having a flexible structure, and absorb the vibration of the outer tub 20. Further, temperature sensors (not shown) are provided at the drain port 37 and the intake port and the discharge port of the fan 61.

  The drum type washing / drying machine configured as described above is configured such that, in the washing process shown in FIG. 2, clothes 30 are put into the rotary drum 29, and water is supplied with the drain valve 8 closed to 27 is stored and the rotary drum 29 is rotated to wash the clothes 30. Further, in the dehydration step, the drain valve 8 is opened to drain the washing water 27 in the outer tub 20, and the rotary drum 29 is rotated to perform centrifugal dehydration.

  In the drying process, the rotary drum 29 is rotated with the drain valve 8 open, and the fan 61 is operated to suck out the air in the outer tub 20 from the air vent 32 and pass it through the water-cooled dehumidifying duct 5. After the water cooling and dehumidification, the heated air is heated by the heater 62, and then the circulating air 12 that is blown from the blowing nozzle 11 toward the clothing 30 in the rotary drum 29 is generated. The dehumidification of the circulating air 12 that has taken moisture from the clothes 30 in the rotary drum 29 is performed by opening a cooling water valve (not shown) and cooling water 52 flowing out from the cooling water supply pipe 51 to the wall surface in the water-cooling dehumidification duct 5. This is realized by causing the air to flow down and touching the circulating air 12. The cooling water 52 that has flowed to the wall surface in the water-cooled dehumidifying duct 5 passes through the drain port 37 and is discharged by the drain hose 9. By continuing this drying process until the garment 30 is sufficiently dried, the garment 30 can be dried by performing the washing process, the rinsing process, the dewatering process, and the drying process as a series of operations.

  Next, dirt on the outer tub 20 and the rotating drum 29 which are water tanks will be described. In the outer tub 20 and the rotating drum 29, dirt that adheres to the laundry such as sebum that is generated every time depending on the location, or soap scum generated by the laundry soap reacting with mineral components of tap water, etc. There is a part that cannot be removed every time it is washed and remains and accumulates easily.

  Since the inside of the rotating drum 29 is rubbed by the clothing 30 every time it is washed, dirt is difficult to adhere. Further, if the material of the rotary drum 29 is made of stainless steel having a property that is difficult to be stained and wrinkled, most of the rotary drum 29 is immersed in the washing water 27 as shown in FIG. Since it rotates, it passes through the wash water 27 at a peripheral speed of the rotary drum 29, so that dirt does not easily adhere to the outside of the rotary drum 29.

  Further, the inside of the outer tank shell plate 20b hits the rotating drum 29 because water spouted by centrifugal force from a dewatering hole provided in the rotating drum shell plate 29b in the dewatering process hits at a high speed and is cleaned at each dewatering process. Next, dirt is difficult to adhere.

  On the other hand, the inside of the outer tub bottom plate 20a easily accumulates and adheres to the portion of the water line of the washing water 27, and the portion above the water line is only sporadically splashed in the washing process or the rinsing process. Dirt adhered by spraying during the process is not easily washed off in the rinsing process, and the dirt is likely to accumulate over a long period of time.

  Therefore, it is most effective to clean the water tank by providing the first outer tank inner surface cleaning body 13 for cleaning the inside of the outer tank bottom plate 20a to which dirt is most likely to adhere, and in addition, the outer tank barrel plate. It is more effective if a second outer tub inner surface cleaning body 14 for cleaning the inside of 20b is provided. The outer tub inner surface cleaning body has a configuration in which at least a part of the outer tub inner surface cleaning body is protruded from the inner side of the rotating drum 29 into the through hole provided in the rotating drum 29 to protrude toward the inner surface of the outer tub 20 It has become.

  FIG. 4 shows the first outer tub inner surface cleaning body 13 on the bottom plate 29 a of the rotating drum 29, and the second outer tub inner surface cleaning body 14 on the barrel plate 29 b of the rotating drum 29 from the inner side of the rotating drum 29. It is a longitudinal cross-sectional view of the washing-drying machine which shows the outline of the attached state. Each outer tub inner surface cleaning body includes a brush portion 16 that rubs the inner surface of the outer tub 20 and a support portion 15 that supports the brush portion 16 by planting the outer tub 20. It is comprised so that the inner wall of the baseplate 20a and the trunk | drum 20b may be contact | connected. Note that the abutting against the inner surface of the outer tub 20 is not limited to the tip of the brush portion 16, and may be part of the brush portion 16. Moreover, you may comprise an outer tank inner surface cleaning body using the other thing which rubs the inner surface of the outer tank 20 continuously instead of a brush-shaped thing.

(First embodiment)
The structure of the 1st outer tank inner surface cleaning body 13 which is a 1st Example of this invention using FIGS. 5-11, and the procedure which removes the 1st outer tank inner surface cleaning body 13 from the rotating drum bottom plate 29a An example will be described in detail.

  FIG. 5 is a perspective view of the first outer tub inner surface cleaning body 13 provided on the rotating drum bottom plate 29b, as viewed in the direction indicated by the arrow B in FIG. 6 is a cross-sectional view taken along the line AA in FIG. FIG. 7 is a perspective view similar to FIG. 5, showing an intermediate process of the procedure for removing the first outer tub inner surface cleaning body 13 from the rotating drum bottom plate 29 b, and FIG. It is A sectional drawing.

  9 and 11 are perspective views similar to FIG. 5, in which the cover 17 provided so as to cover the through hole 43 of the rotary drum 29 is fully opened, and the first outer tub inner surface cleaning body 13 is removed. The procedure is shown, and FIG. 10 is a cross-sectional view taken along the line AA of FIG.

  As shown in FIG. 5 and FIG. 20 and FIG. The rotating drum bottom plate 29a is fastened to the rotating shaft of the drum driving motor 36 by three drum flanges 24 that are formed radially every 120 ° from the rotation center so as to obtain a strength that can withstand the centrifugal force at that time. The central portion and the outer peripheral drum body plate 29b are coupled with high rigidity. The inner side of the rotating drum bottom plate 29 a, that is, the opening side, has a convex shape in accordance with the drum flange 24.

  In FIG. 5, the first outer tub inner surface cleaning body 13 is desirably provided at an intermediate position between the adjacent drum flanges 24 as shown in FIGS. 20 and 21. By arranging the first outer tub inner surface cleaning body 13 in the middle of the drum flange 24 in this way, the dimension of the first outer tub inner surface cleaning body 13 can be expanded to the maximum in the radial direction, so that cleaning is possible. The range is preferable.

  In FIG. 5, a cover 17 to which the first outer tub inner surface cleaning body 13 is attached is provided in contact with the rotating drum bottom plate 29 a and rotates at one end near the body plate 29 b which is the outer peripheral side of the rotating drum 29. It is rotatably supported by a fulcrum 40 and is supported at the other end on the rotation center side via a latch 41 that is a releasable locking means.

  A part of the latch 41 is a stretched knob 42 toward the center of the rotary drum 29 of the latch 41, that is, toward the left side in the drawing of FIG. 6, and the latch 41 is locked by operating this knob 42. It is a configuration that comes off.

  A through hole 43 extending in the radial direction from the rotating shaft side to the outer diameter side is provided on the wall surface of the rotating drum bottom plate 29a, and a resin frame 44 is provided around the through hole 43 so that the rotating drum bottom plate 29a has a through hole. It is fixed. For example, the shape of the through hole may be a shape that allows the tip of the brush to pass through, may be a long hole, or may be a form in which a plurality of round holes are connected. The rotating drum bottom plate 29a is made of stainless steel as described above, and by providing the frame 44, it is possible to prevent the metal end face from being exposed at the edge of the through hole 43. Further, the above-described rotation fulcrum 40 is provided at one end of the frame 44. A support portion 15 that supports the brush portion 16 is provided between the cover 17 and the rotating drum bottom plate 29a. The brush portion 16 protrudes from the through hole 43 and is provided toward the inner wall of the outer tank bottom plate 20a. The tip of 16 is set in a positional relationship where it abuts against the outer tank bottom plate 20a. That is, when the rotary drum 29 is rotated in the state shown in FIGS. 5 to 6, the tip of the brush portion 16 rubs against the entire circumference of the outer tank bottom plate 20a, so that the outer tank bottom plate 20a can be cleaned.

  When the outer tub bottom plate 20a is cleaned, dirt is attached to the tip of the brush portion 16, and the tip of the brush portion 16 is worn when the number of cleanings is increased. Therefore, the first outer tub inner surface cleaning body 13 is replaceable. Is desirable.

  In addition, if the washing process or the dehydrating process is performed with the support part 15 attached, the tip of the brush part 16 keeps rubbing against the outer tub bottom plate 20a at a high speed. Since frictional noise is sometimes generated, it is desirable to remove the support portion 15 except when cleaning the outer tank bottom plate 20a.

  A procedure for removing the first outer tub inner surface cleaning body 13 from the rotating drum bottom plate 29a will be described with reference to FIGS.

  When the latch 42 is unlocked by operating the knob 42, the cover 17 rotates around the rotation fulcrum 40 and opens to the door 3 side, which is the front side as viewed from the operator. The first outer tub inner surface cleaning body 13 is opened together with the cover 17 until the cover 17 becomes substantially parallel to the rotating drum body plate 29b as shown in FIGS. 9 to 10 through the states of FIGS. Open approximately 90 °. Next, as shown in FIG. 11, the brush portion 16 is removed from the cover 17 together with the support portion 15. Then, if the dirt adhering to the brush part 16 is washed with water, the 1st outer tank inner surface cleaning body 13 can be kept clean.

  When attaching the first outer tub inner surface cleaning body 13 to the cover 17, as shown in FIG. 11, positioning and insertion guides provided on the back side (inner side) of the cover 17 with the cover 17 opened. The support portion 15 is attached to the support portion insertion portion 59 formed in the above, and then the cover 17 is closed by operating in the order of FIGS. 9, 7, and 5, and the latch 41 is engaged. As described above, in the normal washing, dehydration, and drying steps other than when the outer tub 20 is cleaned, it is desirable not to attach the first outer tub inner surface cleaning body 13. In that case, the cover 17 may be closed as shown in FIG. 5 without attaching the first outer tub inner surface cleaning body 13 to the cover 17. And the 1st outer tank inner surface cleaning body 13 is stored separately removed until the outer tank 20 is cleaned next time.

  During the dehydration step, the rotating drum 29 rotates at a high speed of, for example, 1500 rotations per minute, and thus a centrifugal force directed radially outward is applied to the first outer tub inner surface cleaning body 13 provided in the rotating drum 29. . If the rotation fulcrum 40 is arranged so as to be in contact with the rotating drum body plate 20b, even if a centrifugal force is applied to the frame 44 or the cover 17 by rotating at a high speed, the force becomes a compressive force against the rotating drum body plate 20b. It is preferable because the cover 17 and the latch 41 are not detached or deformed by force.

(Second embodiment)
The second embodiment of the first outer tub inner surface cleaning body 13 will be described with reference to FIG. FIG. 12 is an exploded perspective view showing the inside of the rotary drum 29 showing the configuration of the second embodiment. The second embodiment is different from the first embodiment in that a claw 34 that engages with the mounting hole 33 of the rotary drum bottom plate 29a is formed in the cover 17 instead of the rotation fulcrum of the first outer tub inner surface cleaning body 13. It is a point provided. And the support part 15 is attached to the cover 17, and the position where the front-end | tip of the brush part 16 contact | abuts the outer tank bottom board 20a is made by fitting the nail | claw 34 of the cover 17 with the attachment hole 33, and attaching to the rotating drum bottom board 20a. Set to relationship. If the rotating drum 29 is rotated in this state, the tip of the brush portion 16 is rubbed with the entire circumference of the outer tank bottom plate 20a, so that the outer tank bottom plate 20a can be cleaned.

  After the tank cleaning is completed, the cover 17 is bent to disengage the claw 34, the cover 17 and the first outer tank inner surface cleaning body 13 are removed, and then only the cover 17 is attached to the rotating drum bottom plate 29a again. Thus, a washing process, a rinsing process, a dehydrating process, and a drying process can be performed.

  Moreover, the structure of the support part 15 of the 1st outer tank inner surface cleaning body 13 is not restricted above, A nail | claw is provided in the support part 15 itself, and the nail | claw of the support part 15 is attached to the attachment hole 33 without the cover 17. You may make it cover the through-hole 43 by making it fit and attaching to the rotating drum bottom plate 20a. In that case, the cover 17 is stored in another place at the time of tank cleaning.

(Third embodiment)
A third embodiment of the first outer tub inner surface cleaning body 13 will be described with reference to FIGS. 13 to 15. FIG. 13 is a perspective view showing the configuration of the third embodiment, FIG. 14 shows a state in which the first outer tank inner surface cleaning body 13 is set and the outer tank bottom plate 20a is cleaned, and FIG. It is CC sectional drawing which shows the state in the middle of removal of the outer tank inner surface cleaning body 13. As shown in FIG. In the third embodiment, the fixed cover 18 is fixed to the rotating drum bottom plate 29 a, and an opening 45 is provided in the vicinity of the drum rotation center 35 of the fixed cover 18. The support portion 15 of the first outer tub inner surface cleaning body 13 is planted with a brush portion 16 formed of a flexible resin, and a knob 46 is formed at one end of the support portion 15. And is in a position protruding from the opening 45 of the fixed cover 18. And the support part 15 is pulled out with the brush part 16 from the opening 45 by pulling out the knob 46 to the direction of the arrow of FIG. 13 thru | or FIG.

  In the state where the first outer tub inner surface cleaning body 13 is mounted as shown in FIG. 14, the brush portion 16 is in a positional relationship in contact with the inner side of the outer tub bottom plate 20a, and the rotating drum 29 can be rotated in that state. If the tip of the brush portion 16 is rubbed with the entire circumference of the outer tank bottom plate 20a, the outer tank bottom plate 20a can be cleaned. When the cleaning is completed, the support portion 15 can be pulled out from the opening 45 while being deformed together with the brush portion 16 by pulling out the knob 46 in the direction of the arrow in FIG. The first outer tank inner surface cleaning body 13 that has been pulled out is stored separately until the next tank cleaning opportunity after cleaning. When the first outer tub inner surface cleaning body 13 is attached, the other end of the knob 46 of the support portion 15 is inserted into the opening 45 and pushed to the back, so that the state of FIG. The outer tank bottom plate 20a can be cleaned.

  In the third embodiment, it is not necessary to remove the fixed cover 18, and only the support portion 15 and the brush portion 16 can be attached and detached, so that the operation is simple.

  In the first embodiment to the third embodiment, since only the tip of the brush portion 16 protrudes from the through hole 43 provided in the rotating drum bottom plate 29a, the inside of the outer tank bottom plate 20a can be cleaned. Even when the first outer tank inner surface cleaning body 13 is provided, the gap between the rotating drum bottom plate 29a and the outer tank bottom plate 20a can be reduced. As a result, it is possible to increase the size of the rotating drum 29, that is, increase the capacity while suppressing the dimensions of the outer tub 20 and the outer frame 2.

(Fourth embodiment)
A fourth embodiment will be described with reference to FIGS. FIG. 16 is a perspective view showing the configuration of the second outer tub inner surface cleaning body 14 in the fourth embodiment, and FIG. 17 sets the second outer tub inner surface cleaning body 14 and the outer tub body plate 20b. FIG. 18 is a sectional view showing a state in the middle of removal of the second outer tub inner surface cleaning body 14. In the fourth embodiment, as shown in FIG. 4, the second outer tub inner surface cleaning body 14 is provided on the rotary drum body plate 29 b that forms the side wall of the rotary drum 29. This is different from the third embodiment. The rotating drum body plate 29b is provided with a frame 50 provided with a through hole 60. A rotation fulcrum 47 is provided on the side of the frame 50 or the cover 49 in the vicinity of the rotating drum bottom plate 29a, and from the rotating drum bottom plate 29a. A knob 46 having a latch 48 is provided on the far side, that is, the opening side. As shown in FIGS. 16 and 17, in the state where the support portion 15 of the second outer tub inner surface cleaning body 14 is set, the cover 49 is closed, and the latch 48 is locked, the brush provided on the support portion 15. This is a configuration in which the front end of the portion 16 is in a positional relationship in contact with the inner side of the outer tank barrel plate 20b through a through hole 60 provided in the rotary drum barrel plate 29b. When the rotating drum 29 is rotated in this state, the tip of the brush portion 16 can be rubbed with the entire circumference of the outer tub barrel plate 20b to clean the inner wall of the outer tub barrel plate 20b.

  FIG. 18 shows a state in which the knob 46 is operated to release the latch 48, the cover 49 is rotated around the rotation fulcrum 40 and opened, and the second outer tub inner surface cleaning body 14 is removed. Show. After cleaning the brush part 16 in the removed second outer tank inner surface cleaning body 14, it is stored until the next tank cleaning opportunity. When the second outer tub inner surface cleaning body 14 is attached, after the support portion 15 is placed on the frame 50, the cover 49 is closed and the latch 48 is locked, so that the state shown in FIGS. be able to.

  During the washing, rinsing, dehydration, and drying steps, the cover 49 may be closed as shown in FIGS. 16 to 17 without attaching the second outer tub inner surface cleaning body 14 to the cover 49. Further, the cover 49 in the present embodiment may be a lifter 63 (see FIGS. 21 and 22) provided on the rotating drum body plate 29b and raised inward to stir clothing.

  In the fourth embodiment, since only the tip of the brush portion 16 protrudes from the through hole 60 provided in the rotating drum barrel plate 29b, the inside of the outer tub barrel plate 20b can be cleaned. Even if the outer tank inner surface cleaning body 14 is provided, the gap between the rotating drum body plate 29b and the outer tank body plate 20b can be reduced. As a result, it is possible to increase the size of the rotating drum 29, that is, increase the capacity.

(Fifth embodiment)
The 5th Example of the 1st outer tank inner surface cleaning body 13 is described using FIG. FIG. 19 is a cross-sectional view similar to FIG. 6, and the difference from the first embodiment is that a magnet 53 as a detected member is provided on the support portion 15, and at a position facing the magnet of the outer tank bottom plate 20 a. For example, a Hall IC 54 which is a brush presence / absence detecting means capable of determining the presence / absence of a magnet is provided. Since the magnet 53 is provided on the support portion 15, when the rotating drum 29 is rotated with the first outer tub inner surface cleaning body 13 being set, the Hall IC 54 rotates once per rotation of the rotating drum 29. The signal from the Hall IC 54 does not change even if the rotary drum 29 is rotated one or more times in a state where the first outer tub inner surface cleaning body 13 is removed. For this reason, it can be determined from the signal of the Hall IC 54 whether or not the first outer tub inner surface cleaning body 13 is set by rotating the rotary drum 29 one or more times. In a present Example, when the 1st outer tank inner surface cleaning body 13 is not set in spite of the tank cleaning mode mentioned later, a user is urged to mount the first outer tank inner surface cleaning body 13. By displaying on the display means, forgetting to attach the first outer tub inner surface cleaning body 13 can be prevented. In addition, when a signal from the Hall IC 54 is detected regardless of the washing process, the dehydrating process, and the drying process, the display means is displayed to prompt the user to remove the first outer tub inner surface cleaning body 13. Thus, it is possible to prevent generation of noise due to wear of the first outer tub inner surface cleaning body 13 and friction between the tip of the brush portion 16 and the outer tub 20 when the rotary drum 29 is rotated.

  In this embodiment, the member to be detected is the magnet 53 and the detection means is the Hall IC 54. However, the present invention is not limited to such a combination of the member to be detected and the detection means. When some physical quantity measuring means is provided in the outer tub 20 and the rotating drum 29 is rotated once or more, when this physical quantity measuring means detects a change in the physical quantity, it notifies that the outer tub inner surface cleaning body is attached. Anything is fine. For example, a member to be detected is a reflection mirror, a detection unit is an optical detection unit that combines light emitting and light receiving elements, a part of the outer tub 20 is used as a transparent window, and a change in the amount of light reflected by the reflection mirror is detected. The non-contact type detection means may be used.

(Sixth embodiment)
A sixth embodiment of the first outer tub inner surface cleaning body 13 will be described with reference to FIGS. 20 and 21. 20 to 21 are cross-sectional views taken along line EE in FIG. 9 when the rotary drum bottom plate 29a is viewed from the opening side.

  20 and 21, a vent 32 is opened in the outer tank bottom plate 20a, and the vent 32 and the water-cooled dehumidifying duct 5 are connected to send air containing moisture from the outer tank 20 during the drying process. The ventilation port 32 is connected to the water-cooled dehumidifying duct 5 with a flexible bellows 4 made of rubber, for example.

  Here, since the 1st outer tank inner surface cleaning body 13 of this invention is provided in the rotating drum bottom plate 29a, in order to attach or detach the 1st outer tank inner surface cleaning body 13 as shown in FIG. When the cover 17 is opened, the through hole 43 through which the brush part 16 is passed is opened.

  When the rotating drum 29 is appropriately rotated in such a state, the through hole 43 is overlapped with the ventilation port 32 as shown in FIG. As a problem of this state, since the inside of the bellows 4 can be seen from the through hole 43 through the ventilation hole 32, the user can insert a cleaning tool such as a long thin brush from the through hole 43 to clean the inside of the bellows 4. It becomes. Since the bellows 4 is made of a flexible rubber, it may be scratched or pierced when it is cleaned with a cleaning tool. If the bellows 4 is scratched, the damage will increase due to vibration caused by high-speed rotation in the dehydration process. As a result, the bellows 4 may be damaged. If the bellows 4 is damaged or a hole is opened, water leaks in the washing process or the rinsing process, the circulating air leaks in the drying process, and the drying becomes insufficient, and further power is wasted. There's a problem.

  FIG. 21 shows a sixth embodiment for avoiding such a state. An actuator 55 is provided outside the outer tub 20, and the plunger 56 operates in response to a signal to project in the direction of the rotary drum 29, thereby preventing the rotation of the rotary drum 29. When the washing process, the dehydration process, and the drying process are completed and the rotary drum 29 is stopped, the rotary drum 29 is not stopped at an arbitrary angle. For example, as shown in FIG. When the outer tank inner surface cleaning body 13 detects an angle in which the outer tank inner surface cleaning body 13 is directed vertically downward, a rotation lock means is provided that applies a signal to the actuator 55 to operate the plunger 56 to prevent rotation.

  If comprised in this way, when attaching and detaching the outer tank inner surface cleaning body, since the through-hole 43 is hold | maintained in the fixed place different from the ventilation port 32 in the circumferential direction, the through-hole 43 and the ventilation port 32 are comprised. There is no overlap, and the bellows 4 is not accidentally damaged. Moreover, since the 1st outer tank inner surface cleaning body 13 always stops in the downward direction from a rotating shaft, when opening the door 3, it is easy to visually recognize from a user, and it is the procedure as shown in FIGS. The operation | work which removes | desorbs the outer tank inner surface cleaning body 13 is also easy. Further, when the first outer tub inner surface cleaning body 13 is detached, the rotating drum 29 is fixed without being freely rotated, so that the operation is stable and easy to use.

  The suitable arrangement position of the 1st outer tank inner surface cleaning body 13 and the 2nd outer tank inner surface cleaning body 14 from a 1st Example to a 6th Example is demonstrated using FIG. As described above, the drum flange 24 is formed in a convex shape from the rotating drum bottom plate 29a. In this embodiment, three drum flanges 24 are provided every 120 °. In order to expand the cleaning range by the first outer tub inner surface cleaning body 13 provided in the outer tub bottom plate 20a in the radial direction, the first outer tub inner surface cleaning body 13 is placed at an intermediate position between the adjacent drum flanges 24. It is desirable to provide it.

  In order to expand the cleaning range of the outer tank shell plate 20b, it is necessary to arrange the second outer tank inner surface cleaning body 14 at a position where it can be expanded in the rotation axis direction. Such an arrangement is desirably arranged such that the second outer tub inner surface cleaning body 14 does not overlap the position of the drum flange 24 and does not overlap the first outer tub inner surface cleaning body 13. If the 1st outer tank inner surface cleaning body 13 and the 2nd outer tank inner surface cleaning body 14 are arrange | positioned adjacently, when attaching / detaching the support part 15 to each, the rotating drum 29 will be rotated and a position will be changed. It is easy to use because there is no need.

(Seventh embodiment)
The seventh embodiment will be described with reference to FIG. FIG. 23 is a perspective view showing the first outer tub inner surface cleaning body 13 provided on the rotating drum bottom plate 29b as in FIG. 5 is different from FIG. 5 in that the concave / convex pattern 57 is provided on the rotary drum bottom plate 29b, and the concave / convex shape of the cover 17 of the first outer tub inner surface cleaning body 13 in contact with the rotary drum bottom plate 29b is matched with the concave / convex pattern 57. This is the boundary 58. In this way, the gap formed between the cover 17 and the rotating drum bottom plate 29b is not a linear gap but a concave / convex boundary 58, so that clothes are caught in the gap in the washing process, the dehydrating process, and the drying process. There is an effect that can be prevented.

(control)
FIG. 24 is a block diagram of the control device 138 of the washing / drying machine according to the present embodiment. Reference numeral 150 denotes a microcomputer, which includes an operation button input circuit 151 connected to each switch (not shown), a water level sensor 134, a temperature sensor 152, a vibration sensor 153 (not shown) for detecting vibration of the outer tank 20, and an outer tank in the fifth embodiment. It is connected to the Hall IC 54, which is an inner surface cleaning body presence / absence detection, and receives various information signals in the user's button operation, washing process, drying process, and outer tank inner surface cleaning body presence / absence signal. The output from the microcomputer 150 is connected to the drive circuit 154, and the water supply electromagnetic valve 116, the drain valve 8, the drum drive motor 36, the fan 61, the heater 62, the cooling water valve (not shown), the sixth embodiment. The actuator 55 is connected to the actuator 55 and the like to control opening / closing, rotation, and energization. Further, it is connected to a display 114 such as a 7-segment light emitting diode, a light emitting diode 156, and a buzzer 157 for informing the user of the operating state of the washing machine.

  The microcomputer 150 is activated when the power switch 139 is pressed to turn on the power. When tank cleaning is performed, a tank cleaning course shown in FIG. 25 is selected and a basic control processing program is executed.

Step S101
Check the status of the washer / dryer and make initial settings.

Step S102
The display 114 of the operation panel 106 is turned on, and a tank cleaning course is set according to an instruction input from an operation button switch (not shown).

Step S103
The first outer tub inner surface cleaning body 13 and / or the second outer tub inner surface cleaning body 14 is set on a rotating drum, and a washing tub detergent is introduced.

Step S104
The process branches after monitoring an instruction input from a start switch (not shown) on the operation panel 106.

Step S105
In the sixth embodiment, the actuator 55 is energized to release the rotation lock of the rotary drum 29 so that it can rotate.

Step S106
In the fifth embodiment, if the rotating drum 29 is rotated at least one turn and the outer tank inner surface cleaning body presence / absence detection signal from the Hall IC 54 is detected, the outer tank inner surface cleaning body is mounted. If it determines, and if it is not detected, it will determine with the outer tank inner surface cleaning body not being mounted | worn, and a process will be branched.

Step S107
When the outer tank inner surface cleaning body is not attached, the fact is displayed on the display unit 114 as an alarm.

Step S108
A predetermined amount of water is supplied and tank cleaning is started.

Step S109
Predetermined processing is repeated in order to repeat the rotation of the rotating drum 29 in the left-right direction or the soaking and washing for a predetermined time.

Step S110
Check if the specified time is reached and branch the process.

Step S111
Drain by opening the drain valve.

Step S112
After supplying a predetermined amount of water, the rotating drum 29 is reversed left and right to rinse the detergent, and the drain valve is opened to drain the water.

Step S113
Dry the bath. The drying fan 61 is rotated at a low speed while the heater 62 is energized and heated.

Step S114
When the predetermined time has elapsed, the fan 61 and the heater 62 are stopped.

Step S115
In the sixth embodiment, a signal from the drum angle detecting means 64 is detected, and the actuator 55 is energized to operate the plunger 56 when the first outer tub inner surface cleaning body 13 reaches the lower position. The rotation of the rotary drum 29 is locked.

Step S116
The 1st outer tank inner surface cleaning body 13 and / or the 2nd outer tank inner surface cleaning body 14 are removed from the rotating drum 29, and tank cleaning is complete | finished.

  In this way, if the outer tank inner surface cleaning body is attached only at the time of tank cleaning, the brush section 16 and the outer tank 20 do not operate while in contact with each other in the dehydration process. The function of cleaning the inner surface of the tank 20 can be maintained, and the generation of rubbing noise due to high-speed rotation in the dehydration process can also be prevented.

  Thus, although the above-mentioned Example is a system which attaches and detaches an outer tank inner surface cleaning body whenever it sets up a special tank cleaning course, it is not such a special tank cleaning process, but outer tank inner surface cleaning. A washing process, a rinsing process, a dehydration process, and a drying process may be performed while the body is attached, and when the outer tub inner surface cleaning body is worn, a new outer tub inner surface cleaning body may be replaced.

  In the above-described embodiment, the case where the rotating shaft of the rotary drum 29 is a so-called drum-type washing and drying machine that is nearly horizontal has been described. However, the present invention is not limited to such a configuration, and as shown in FIG. 29 rotates around a vertical axis, and a pulsator 65 that is a stirring blade for stirring washing water is provided on the bottom surface, and a second outer tub inner surface cleaning body 14 is provided on a body plate 29b that is a side surface of the rotating drum 29. It goes without saying that the operation and effect of the vertical washing machine or the vertical washing dryer provided are the same.

DESCRIPTION OF SYMBOLS 1 Base 2 Outer frame 3 Door 4, 7 Bellows 5 Water cooling dehumidification duct 6 Drying device 8 Drain valve 9 Drain hose 11 Blowing nozzle 12 Circulating air 13 First outer tank inner surface cleaning body 14 Second outer tank inner surface cleaning body 15 Supporting part 16 Brush part 17 Cover 19 Drying filter 20 Outer tank 21 Suspension 22 Front cover 23 Rear cover 24 Drum flange 29 Rotating drum 30 Clothing 31 Fluid balancer 32 Ventilation port 36 Drum drive motor 37 Drainage port 38 Packing 40, 47 times Moving fulcrum 41, 48 Latch 42, 46 Knob 43 Through hole 44, 50 Frame 45 Opening 49 Cover 51 Cooling water supply pipe 52 Cooling water 53 Magnet 54 Hall IC
55 Actuator 56 Plunger 57 Concavity and convexity pattern 61 Fan 62 Heater 64 Drum angle detection means 65 Pulsator

Claims (8)

  An inner tub for storing clothes, an outer tub that encloses the inner tub and stores washing water, a casing that supports the outer tub, and a motor that drives the inner tub. A washing machine characterized in that an attachment portion for an outer tub inner surface cleaning body that is attached and detached from the inside of the tub is provided in the inner tub.   In Claim 1, It has a through hole in the wall surface of the said inner tank, At least one part of the said outer tank inner surface cleaning body is inserted into the said through hole from the inner side of the said inner tank, and the inner surface side of the said outer tank A washing machine characterized by protruding.   In Claim 2, the air sucked from the vent provided in the outer tub has a drying operation in which the air is blown into the inner tub through a heating means and a blowing means, and the outer tub inner surface cleaning body is When attaching and detaching the washing machine, the inner tub is held so that the through hole is located at a constant place different from the vent hole in the circumferential direction.   In Claim 2, The said outer tank inner surface cleaning body has a brush part which rubs the inner surface of the said outer tank, and a support part which supports this brush part, The cover which covers the said through-hole is provided in the said inner tank. A washing machine provided, wherein the support portion is attached to a back surface of the cover, and the brush portion is brought into contact with an inner surface of the outer tub.   In Claim 1, when the physical quantity measuring means is provided in the outer tub, and the physical quantity measuring means detects a change in the physical quantity when the inner tub is rotated one or more times, the outer tub inner surface cleaning body is attached. A washing machine characterized by notifying that   A rotating drum containing clothes and inclined so that the center of rotation is horizontal or the opening side is high, an outer tub containing the rotating drum and storing washing water, a housing supporting the outer tub, In a drum type washing machine provided with a motor for driving a rotating drum, an outer tub inner surface cleaning body is attached to the bottom plate of the rotating drum from the inner side of the rotating drum, and at least a part of the outer tub inner surface cleaning body is A drum-type washing machine characterized in that it is brought into contact with the inner surface of the bottom plate of the outer tub.   In Claim 6, The flange part is radially formed in the baseplate of the said rotating drum, It has a through-hole extended from the rotating shaft side to an outer diameter side between the said adjacent flange parts, From this through-hole, A drum type washing machine characterized in that at least a part of the outer tub inner surface cleaning body is projected.   8. The drum type washing machine according to claim 7, wherein when the outer tub inner surface cleaning body is attached or detached, the through hole is positioned downward from the rotation shaft.