JP2015043866A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing and drying machine capable of preventing biting of laundry.SOLUTION: A washing and drying machine includes: an inner tub 3 for accommodating laundry; an outer tub 4 for including the inner tub 3 and storing washing water; a balance ring 5 mounted on an upper part of the inner tub 3; a tub cover 6 for covering an opening part 4a of the outer tub 4; and an inner lid 7 for opening/closing an opening part 6a formed on the tub cover 6. An annular surface part 7a4 of a rear surface of the inner lid 7 when the inner lid 7 is closed is set at a position lower than an upper surface 5e of the balance ring 5.

Description

  The present invention relates to a washing / drying machine including a tank cover that covers an upper part of an outer tank.

  The washing and drying machine has a balance ring for balancing at the top of the inner tub when washing, a tub cover that covers the upper opening of the outer tub, an inner lid that is opened and closed when the laundry is taken in and out of the tub cover, It has. In this type of washing and drying machine, it is necessary to provide a gap (gap) between the tank cover and the balance ring in order to prevent the inner tank from coming into contact with the tank cover when the inner tank rotates. However, when the inner tub rotates during a dehydration process or the like, there is a risk that clothing (laundry) housed in the inner tub rises and the clothing bites into the gap. Therefore, in order to prevent such clothing from being caught, the current value of the motor when rotating the inner tub is read to determine whether the clothing is caught, and if the clothing is bitten, A technique for performing soft control to stop rotation has been proposed (see, for example, Patent Document 1).

JP 2012-170677 A

  However, in the washing and drying machine described in Patent Document 1, since the rotation of the inner tub is stopped after the biting of the clothes occurs, it is difficult to prevent the biting of the clothes.

  The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a laundry dryer that can prevent the biting of the laundry.

  The present invention includes an inner tub that accommodates laundry, an outer tub that encloses the inner tub and stores washing water, a balance ring that is attached to an upper portion of the inner tub, and a tub cover that covers an upper opening of the outer tub. And an inner lid that opens and closes the opening formed in the tub cover, and in a laundry dryer that allows air to flow through the inner tub to dry the laundry, when the inner lid is closed The lowermost surface portion of the back surface of the inner lid is at a position lower than the upper surface of the balance ring.

  ADVANTAGE OF THE INVENTION According to this invention, the washing-drying machine which can prevent the biting of the laundry beforehand can be provided.

It is a block diagram which shows the washing-drying machine which concerns on 1st Embodiment. It is a perspective view which shows the state which isolate | separated the tank cover from the outer tank. FIG. 3 is a partial cross-sectional view taken along line AA in FIG. 2. The reinforcement plate which comprises the member of the back side of an inner cover is shown, (a) A perspective view when it turns upside down, (b) is a side view. It is a perspective view which shows the internal structure of an inner tank. A circulation channel member is shown, (a) is a front view, (b) is a BB line sectional view taken on the line of (a). The other circulation channel member is shown, (a) is a front view, (b) is CC sectional view taken on line CC of (a). It is a fragmentary sectional view corresponding to FIG. 3 in the washing and drying machine concerning a 2nd embodiment.

  Hereinafter, modes for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the drawings as appropriate. The present invention is applied to a washing / drying machine (so-called vertical type washing / drying machine) capable of performing washing, rinsing, dehydration, and drying.

(First embodiment)
FIG. 1 is a configuration diagram illustrating the washing / drying machine according to the first embodiment.
As shown in FIG. 1, the washing / drying machine 1 </ b> A includes an inner tub 3, an outer tub 4, a balance ring 5, a tub cover 6, an inner lid 7 and the like in a housing 2.

  The inner tub 3 functions as a washing and dehydrating tub, has a rotating shaft in a substantially vertical direction, has a bottomed cylindrical shape, and has a body plate 3a formed of a stainless steel plate or the like. A large number of through holes 3a1 and 3a2 (only part of which are shown) are formed in the side wall (body plate 3a) and the bottom wall of the inner tank 3 for water flow and ventilation.

  A rotating blade 3 b is provided at the bottom of the inner tank 3. The rotary blade 3b is provided with a plurality of through holes 3b1 penetrating vertically.

  The outer tank 4 has a bottomed cylindrical shape and includes the inner tank 3 coaxially. The outer tub 4 is supported in the housing 2 by a plurality of suspension means (not shown). The suspension means expands and contracts due to vibration generated in the housing 2 or the outer tub 4, thereby converting the kinetic energy of the vibration into thermal energy and damping the vibration.

  The outer tub 4 has an opening 4 a (upper opening) formed in the upper portion covered with a tub cover 6. An inner lid 7 is attached to the tank cover 6.

  The washing / drying machine 1 </ b> A includes a drive device 10, a detergent / finishing agent charging device 11, a water supply unit 12 </ b> A, a drying duct 20, and a blower fan 21 in the housing 2.

  An upper surface cover 2a is provided on the top of the housing 2 of the washing / drying machine 1A, and an outer lid 8 is provided on the upper surface cover 2a. On the back side (rear side) of the upper surface cover 2a, a water supply hose connection port 9 from the water tap and a water absorption hose connection port (not shown) for sucking the remaining hot water in the bath are provided.

  The outer lid 8 is configured to open an opening 2b formed above the inner lid 7 by being opened rearward while being bent into a mountain shape. By opening the outer lid 8 and the inner lid 7, the user can put in and out clothes (laundry) from the opening 2 b into the inner tub 3.

  The driving device 10 is disposed at the outer center of the bottom surface of the outer tub 4. This drive device 10 has a motor 10a and a clutch mechanism 10b, and is configured such that a rotating shaft 10c of the drive device 10 passes through the outer tank 4 and is coupled to the inner tank 3 and the rotary blade 3b. The motor 10a has a rotation shaft that is coaxial and has different diameters (large diameter and small diameter). The clutch mechanism 10b has a function of switching the rotation axis and transmitting the rotational power of the motor 10a to at least one of the inner tank 3 and the rotary blade 3b. The motor 10a includes a rotation detection device 28 configured by a Hall element or a photo interrupter that detects the rotation, and a motor current detection device 29 that detects a current flowing through the motor 10a.

  The rotating blade 3b is rotatable by being supported by a small-diameter rotating shaft of the motor 10a. Thereby, at the time of washing too much, the rotary blade 3b can be rotated and water can be stirred with the laundry. The inner tub 3 is rotatable by being supported by a large-diameter rotating shaft of the motor 10a. Thereby, at the time of dehydration, the inner tub 3 can be rotated to dehydrate the laundry.

  The charging device 11 is provided on the front side of the top cover 2a. The detergent and finishing agent are charged between the outer tub 4 and the inner tub 3 together with tap water from the charging hose 11a.

  The water supply unit 12A is provided on the back side of the top cover 2a. The water supply unit 12 </ b> A supplies tap water from the water supply hose connection port 9 to the charging device 11 and the water cooling / dehumidifying mechanism 25. In addition, the water supply unit 12A supplies the tap water from the water supply hose connection port 9 and the bath water from the water absorption hose connection port into the outer tank 4 between the outer tub 4 and the inner tub 3 via the water injection hose 11b. Add water.

  The water-cooled dehumidifying mechanism 25 includes a water supply unit 25a that supplies water into the drying duct 20, and a flow lower part 25b that allows the water supplied from the water supply unit 25a to flow while exposing the atmosphere (air) in the drying duct 20 ( And a metal plate made of stainless steel or the like. When the water supplied from the water supply unit 25a touches the air, the air can be cooled to remove moisture in the air, that is, dehumidified. In addition, the flow part 25b has a concavo-convex shape in order to increase the surface area in contact with water. Further, the flow lower part 25 b may also serve as the wall surface of the drying duct 20.

  A drop portion 4 m provided on the bottom surface of the outer tub 4 communicates with the lower communication pipe 13. The lower communication pipe 13 is connected so as to communicate with the washing water drainage path 15 via the drain valve 14. The washing water drainage channel 15 is connected to a drainage hose (not shown) that sends out drainage to the outside of the machine. By the way, by closing the drain valve 14, washing water and rinsing water can be stored in the outer tub 4. Further, by opening the drain valve 14, the water (washing water, rinsing water) in the outer tub 4 can be discharged outside the machine through the washing water drainage channel 15.

  The drying duct 20 is disposed so as to extend in the longitudinal direction inside the back surface of the housing 2, and the lower part of the duct is connected to the drop portion 4 m of the outer tub 4 by a rubber bellows tube 20 a. A water-cooled dehumidifying mechanism 25 is built in the drying duct 20, and the cooling water that has flowed down along the flow lower part 25 b of the water-cooled dehumidifying mechanism 25 enters the drop-in part 4 m and enters the lower communication pipe 13, the washing water drainage channel. 15 is discharged outside the machine.

  The outlet of the drying duct 20 is connected to the air inlet of the fan 21, and the outlet of the fan 21 is connected to the heater 22. The outlet of the heater 22 is connected to the blowout nozzle 24 via a blower duct 23 and a rubber bellows tube 23a. That is, when the fan 21 is driven, the air in the outer tub 4 flows into the drying duct 20 through the drop portion 4m. The air that has been dewatered by water cooling in the drying duct 20 is discharged from the fan 21 and then heated by the heater 22, and then becomes high-temperature and low-humidity air (dry air) from the blowing nozzle 24 toward the inner tub 3. Blown out. Although not shown, between the lower communication pipe 13 and the drain valve 14, a temperature for detecting the temperature of the washing water and the temperature of the air discharged from the washing water drainage path 15 during the drying operation. A sensor is provided.

  The balance ring (also referred to as a fluid balancer) 5 is formed of a synthetic resin or the like, and is provided at the upper edge of the body plate 3a of the inner tank 3. The balance ring 5 is configured by enclosing a fluid having a large specific gravity (such as salt water) therein, and when the eccentricity occurs due to the unevenness of the laundry when the inner tub 3 rotates, the fluid in the balance ring 5 It has the function of canceling the eccentricity by movement and maintaining the balance of rotation.

FIG. 2 is a perspective view showing a state where the tank cover is separated from the outer tank.
The tank cover 6 has a substantially circular shape, and an opening 6a through which the laundry is taken in and out is provided at a substantially central portion. An inner lid 7 is provided in the opening 6a so as to be opened and closed through a hinge 6b. A rib 6c for reinforcing the hinge 6b is provided on the upper surface of the tank cover 6. The rib 6c is provided between the left and right peripheral wall portions 6d near the rear from the center of the tank cover 6.

  Further, on the upper surface of the tank cover 6, behind the rib 6c, a connection port 6e connected to the bellows tube 23a (see FIG. 1), a connection port 6f connected to the water injection hose 11b (see FIG. 1), Is provided. In addition, a mounting portion 6 g to be mounted on the upper end opening of the drying duct 20 is provided at the rear portion of the tank cover 6. The mounting portion 6g is provided with a connection port 6h connected to the drying duct 20 and a connection port 6i connected to the water supply unit 25a (see FIG. 1).

FIG. 3 is a partial cross-sectional view taken along line AA in FIG. FIG. 3 is a cross-sectional view when the tank cover 6 is attached to the outer tank 4 and the inner lid 7 is closed.
As shown in FIG. 3, the inner lid 7 includes a reinforcing frame 7a formed of a stainless steel plate, a cover cover 7b formed of a synthetic resin, and a sealing member sandwiched between the reinforcing frame 7a and the cover cover 7b. 7c is combined. The inner lid 7 can be locked with the opening 6a closed by operating a lock mechanism 6j (see FIG. 2) provided at the front of the lid cover 7b.

FIG. 4 is a reinforcing plate that constitutes a member on the back side of the inner lid, (a) a perspective view when it is turned upside down, and (b) is a side view.
As shown in FIG. 4A, the reinforcing frame 7a has a recess 7a1 (a recess) formed at a substantially central portion. The reinforcing frame 7a is formed by drawing a stainless steel plate. The recess 7a1 is formed in a substantially semicircular shape in plan view so as to follow the outer peripheral shape of the lid cover 7b. The recess 7a1 includes an inner side surface 7a2 that is inclined toward the center side of the inner lid 7 toward the upper side (the lower side in the drawing), and a bottom surface (ceiling surface) 7a3 that is convex toward the upper side (the lower side in the drawing). It is configured.

  The reinforcing frame 7a has an annular surface portion 7a4 (lowermost surface portion) so as to surround the recessed portion 7a1 at the lower end (the upper end in the drawing) of the inner side surface 7a2. The reinforcing frame 7a has an outer surface 7a5 that is inclined in a direction away from the inner surface 7a2 from the annular surface portion 7a4 upward (lower side in the drawing). Further, a collar portion 7a6 protruding outward is formed at the upper end of the outer surface 7a5 over the entire circumference. A sealing member 7c is sandwiched between the collar portion 7a6 and the lid cover 7b.

  As shown in FIG. 4B, the reinforcing frame 7a has an outer surface 7a5 extending from the collar portion 7a6 substantially downward in a side view of the inner lid 7 (see FIG. 3), and further, a central portion of the recess portion 7a1. It is comprised so that it may protrude upwards from the height position of the collar part 7a6.

  Returning to FIG. 3, the balance ring 5 is located below the tank cover 6. The balance ring 5 includes a balance ring main body 5a having a plurality of fluid storage portions 5b in which fluid is stored, and a balance ring lid portion 5c that covers the upper surface of the balance ring main body 5a and seals the fluid storage portion 5b. Configured. The upper surface 5e of the balance ring lid 5c has a flat surface in the radial direction (horizontal direction).

  Further, the inner peripheral surface (side surface) 5 d of the balance ring 5 is located on the radially outer side than the edge 6 a 1 of the opening 6 a of the tank cover 6.

  Further, the outer surface 7a5 of the reinforcing plate 7a is inclined in a direction away from the edge 6a1 of the opening 6 as it goes downward. Thereby, when the inner lid 7 is opened and closed, the reinforcing frame 7 a can be prevented from coming into contact with the tank cover 6.

  Although not shown, the inner lid 7 has a plurality of screw insertion holes formed in the annular surface portion 7a4 of the reinforcing frame 7a, and screw bosses into which screws are screwed into the lid cover 7b. By providing at a position corresponding to the screw insertion hole, the reinforcing frame 7a and the lid cover 7b can be fixed to each other.

  In the state where the opening 6 a is closed by the inner lid 7, the position of the annular surface portion 7 a 4 (lowermost surface portion) of the inner lid 7 in the height direction (vertical direction) is lower than the upper surface 5 e of the balance ring 5. (See the downward arrow in FIG. 3). As a result, even when the laundry rises in the inner tub 3 during the dehydration operation or the like, before reaching the gap CL between the tub cover 6 and the balance ring 5, By hitting the annular surface portion 7a4 that is positioned, it is possible to block (inhibit) the rise of the laundry and to prevent the laundry from entering (biting into) the gap CL.

  Incidentally, the shape of the balance ring 5 is an annular shape in a plan view from the vertical direction, and the shape of the annular surface portion 7a4 of the inner lid 7 is a substantially semicircular shape in a plan view from the vertical direction. For this reason, when the inner lid 7 is closed, the inner lid 7 is not positioned in the gap CL between the balance ring 5 and the tank cover 6 on the rear side of the inner cover 7 of the tank cover 6. However, since the annular surface portion 7a4 of the inner lid 7 is located in a part of the gap CL between the balance ring 5 and the tank cover 6 as in the present embodiment, it hits the annular surface portion 7a4 when the laundry is raised. As a result, it becomes possible to prevent the laundry from being caught in the gap CL.

FIG. 5 is a perspective view showing the structure of the inner tank. FIG. 5 shows a state in which the body plate 3a (see FIG. 1) and the rotary blade 3b (see FIG. 1) are removed. In addition, the structure of the inner tank 3 shown in FIG. 5 is an example, Comprising: It is not limited to this embodiment.
As shown in FIG. 5, the inner tub 3 has a synthetic resin bottom plate 3 c that is concave upward. On the bottom surface of the bottom plate 3c, communication holes 3a2 (see FIG. 1, not shown in FIG. 5) communicating with the outer tub 4 are formed at a plurality of locations.

  Circulating flow path members 51, 52, 51, 52 are attached to the inner peripheral surface of the trunk plate 3 a (see FIG. 1) at four locations with a circumferential interval. The circulation flow path members 51 and 52 are integrally formed of synthetic resin or the like, and have water conduits 51 a and 52 a on the back side, and wall surfaces such as the trunk plate 3 a constituting the water conduits 51 a and 52 a and the inner tank 3. And the circulating water channel R (see FIG. 6B and FIG. 7B). Slit-shaped discharge ports 51 b and 52 b for sprinkling washing water as outlets of the flow channel into the inner tub 3 are formed on the upper portions of the circulation flow channel members 51 and 52.

  Although not shown, a circulating water channel R is provided in a pump chamber PM (see FIG. 1) configured by an inner surface of the bottom plate 3c and an outer peripheral side of a back blade (not shown) provided on the back surface of the rotary blade 3b. Are communicating. The washing water is pushed out by the centrifugal force generated by the rotation of the back blade (not shown) provided on the back side of the rotary blade 3b, so that the washing water passes from the introduction port M through the circulation water channel R into the circulation water channel R. The washing water is intermittently poured from the discharge ports 51b and 52b of the circulation flow path members 51 and 52, respectively.

6A and 6B show the circulation channel member, where FIG. 6A is a front view, and FIG. 6B is a cross-sectional view taken along line BB.
Note that the circulation flow path member 51 shown in FIG. 6 has only a function of circulating the washing water, and is disposed at positions facing each other in the inner tub 3.

  As shown to Fig.6 (a), the circulation flow path member 51 is comprised by the rectangular substantially plate-shaped body by the front view extended in the up-down direction (depth direction) of the inner tank 3 (refer FIG. 5). Yes. The circulation channel member 51 may be made of synthetic resin, but is not limited to this as long as predetermined mechanical strength and workability are obtained, and may be other materials such as metal. Further, a discharge port 51b that opens toward the inside of the inner tank 3 and communicates with the circulation channel R (see FIG. 6B) is provided at the upper end of the circulation channel member 51 in the longitudinal direction (depth direction). Is formed.

  As shown in FIG. 6B, the surface of the circulation channel member 51 facing the center side of the inner tank 3 protrudes in a direction intersecting the circumferential direction of the inner tank 3 on both sides in the circumferential direction. Stepped portions 51c and 51c having a concave shape are formed. The circulation channel member 51 has a wide plate portion 51d extending in parallel with the body plate 3a in the circumferential direction between the step portion 51c and the step portion 51c. The step portion 51c extends linearly in the vertical direction from a position corresponding to the lower end of the body plate 3a to the vicinity of the discharge port 51b. Moreover, while making the level | step-difference part 51c into a curved surface (R shape), and making the boundary of the level | step-difference part 51c and the board part 51d into a curved surface (R shape), the damage with respect to the laundry at the time of rotation of the inner tank 3 is carried out. Can be relaxed.

  7A and 7B show another circulation channel member, where FIG. 7A is a front view and FIG. 7B is a cross-sectional view taken along the line CC. 7 includes a detergent charging case S and a waste thread filter F (see FIG. 5). FIG. 7A shows a state in which the waste thread filter F is removed.

  As shown in FIG. 7A, the surface of the circulation channel member 52 facing the center side of the inner tank 3 is similar to the circulation channel member 51 on both sides in the circumferential direction. A step portion 52c having a concave shape protruding in a direction intersecting the direction is formed. Further, the circulation flow path member 52 has a wide plate portion 52e having a recess 52d in which the waste thread filter F (see FIG. 5) is accommodated between the step portion 52c and the step portion 52c. The stepped portion 52c extends linearly along the vertical direction from a position corresponding to the lower end of the body plate 3a to the vicinity of the discharge port 52b. Also in this case, the stepped portion 52c has a curved surface (R shape) and the boundary between the stepped portion 52c and the plate portion 52e has a curved surface (R shape). Can alleviate the damage.

  A circulation flow path member 52 including a waste thread filter F is provided on the inner peripheral surface of the inner tub 3 (body plate 3a) at a position facing the circulation flow path member 52. The circulation channel member 52 is configured by removing the detergent charging case S from the circulation channel member 52 shown in FIG. 7, and the other configuration is the same as the circulation channel member 52.

  By the way, when the inner tub 3 rotates in the dehydration process or the rinsing process, laundry such as clothes housed in the inner tub 3 is pushed upward by centrifugal force when the inner tub 3 rotates. This increases the possibility that the laundry enters the gap CL between the balance ring 5 and the tank cover 6. However, by providing the circulation channel members 51 and 52 with the step portions 51c and 52c inside the inner tub 3, the laundry comes into contact with the step portions 51c and 52c to generate resistance (FIG. 6B and FIG. 7 (b)), the upward force on the laundry is suppressed, and the increase of the laundry to the gap CL between the balance ring 5 and the tank cover 6 can be suppressed.

  In addition, about the angle which cross | intersects with respect to the circumferential direction in level | step-difference part 51c, 52c, if resistance is produced with respect to the laundry and the raise (rise to the clearance CL) can be suppressed, it is possible. There is no particular limitation, and any of obtuse angles, right angles, and acute angles can be employed.

  As described above, according to the washing / drying machine 1A according to the present embodiment, the annular surface portion 7a4 (the lowermost surface portion of the back surface of the inner lid) when the inner lid 7 is closed is the upper surface of the balance ring 5. By setting the position lower than 5e (see FIG. 3), even if the laundry rises during the dehydration operation, the laundry can be prevented from rising to the height of the gap CL. It becomes possible to prevent the laundry from entering between the balance ring 5 and the tank cover 6 (see the white arrow in FIG. 3). Thereby, in order to increase the rated washing capacity and drying capacity, it is possible to cope with the problem by simply changing the shape of the inner lid 7 without enlarging the shape of the inner tub 3 or the like.

  Moreover, in this embodiment, it becomes possible to increase a rated washing capacity | capacitance and drying capacity | capacitance by providing the recessed part 7a1 (dent) on the back surface of the inner lid 7 (refer FIG. 3, FIG. 4).

  Moreover, in this embodiment, the laundry rises at the time of a dehydration operation etc. by providing the step part 51c, 52c which protrudes in the direction which cross | intersects in the circumferential direction on the surface of the circulation flow path members 51, 52. Can be suppressed. Therefore, it can suppress that a laundry goes to the clearance gap CL between the balance ring 5 and the tank cover 6, and it can prevent more reliably that clothing enters into the clearance gap CL.

(Second Embodiment)
FIG. 8 is a partial cross-sectional view corresponding to FIG. 3 in the washing / drying machine according to the second embodiment. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.
As shown in FIG. 8, the washing / drying machine 1 </ b> B has a stopper portion (protrusion portion) 5 f that protrudes radially inward on the side surface 5 d on the inner diameter side of the balance ring 5. For example, the stopper portion 5f is formed on the side surface 5d of the balance ring 5 over the entire circumferential direction.

  As a result, even when the laundry rises to the position of the inner lid 7 during the dehydrating operation or the like, the stopper 5f can more reliably prevent the laundry from entering the gap CL.

  The stopper portion 5f is not limited to the one formed on the side surface 5d of the balance ring 5 over the entire circumferential direction, and intermittently in the circumferential direction as long as it can prevent the laundry from entering the gap CL. The structure to provide may be sufficient.

  Further, the height position of the stopper portion 5f is not limited to the upper end of the side surface 5d of the balance ring 5, but may be located below the surface portion 7a4 of the inner lid 7 and may be changed as appropriate. it can.

  Further, the direction of the stopper portion 5f is not limited to that extending horizontally inward in the radial direction, and may be diagonally downward, diagonally upward, or the like. Further, the shape of the stopper portion 5f is not limited to a rectangular shape in a cross-sectional view in the vertical direction, and may be an L-shape or a substantially L-shape in which the tip is bent downward.

  In addition, this invention is not limited to above-described embodiment, In the range which does not deviate from the meaning of this invention, it can change variously. For example, in the present embodiment, the case where the recess 7a1 is provided in the inner lid 7 has been described as an example, but a configuration in which the recess 7a1 is not provided may be used.

1A, 1B Washer / Dryer 2 Housing 3 Inner tank 4 Outer tank 4a Opening (upper opening)
5 balance ring 5d side surface 5e upper surface 5f stopper portion 6 tank cover 6a opening 6a1 edge 7 inner lid 7a1 dent (dent)
7a4 Annular surface (bottom surface)
51, 52 Circulation channel member 51c, 52c Stepped portion

Claims (4)

An inner tub for storing laundry;
An outer tub containing the inner tub and storing washing water;
A balance ring attached to the upper part of the inner tank;
A tank cover covering the upper opening of the outer tank;
An inner lid that opens and closes an opening formed in the tub cover, and a laundry dryer that allows air to flow through the inner tub to dry the laundry,
The washing / drying machine according to claim 1, wherein a lowermost surface portion of a back surface of the inner lid when the inner lid is closed is at a position lower than an upper surface of the balance ring.   The washing / drying machine according to claim 1, wherein the back surface of the inner lid has a recess.   The washing / drying machine according to claim 1 or 2, wherein a stopper portion protruding radially inward from an edge portion of the opening is formed on a side surface on the inner diameter side of the balance ring. . The inner wall surface of the inner tub is provided with a circulation channel member that circulates by discharging the wash water stored in the outer tub from the upper portion of the inner tub,
The laundry drying according to any one of claims 1 to 3, wherein a stepped portion that protrudes in a direction intersecting the circumferential direction is formed on a surface of the circulation channel member. Machine.

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