JP2005304989A - Washing and drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing and drying machine, even if the amount of clothes to be dried is increased, having a superior drying performance by using 100% of hot air sent from a blower for drying the clothes. <P>SOLUTION: This washing and drying machine is provided with the water tub 3 elastically supported to the inside of a casing 1; a rotating drum 5 rotationally provided in the water tub 3 and storing clothes; a blower 21 constituting an air blasting passage 20 having an air outlet on the surface of the water tub 3 having a rotating shaft of the rotating drum 5 and an air inlet on the surface of the rotating drum having the rotating shaft, and sending the air to the inside of the rotating drum 5 from the water tub 3; and a sealing member 22 approximately concentrically provided between the surface of the rotating drum 5 having the rotating shaft and the surface of the water tub 3 opposed thereto via the air blasting passage 50, when the blower 21 is operated, closing a clearance between the sealing member and a sealed part and, when the blower 21 is stopped, leaving the clearance between the sealing member 22 and the sealing object part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a washing / drying machine that performs washing / dehydration and drying in the same rotating tank.

  A conventional drum-type washing and drying machine has a configuration as shown in FIG. Hereinafter, the configuration will be described.

  As shown in FIG. 11, a cylindrical water tub 3 elastically supported by a plurality of suspensions 2 is provided inside the housing 1, and the suspension 2 absorbs vibration during washing and dehydration. Inside the water tank 3, a cylindrical, horizontal axis type rotating tank 5 that accommodates an object 4 to be washed or dried (hereinafter referred to as clothing) is rotatably arranged, and a rotating shaft 6 a is rotated by a drive motor 6. To rotate.

  A plurality of baffles (not shown) for stirring clothes are provided on the inner wall of the rotating tub 5, and a plurality of small holes 5 a are provided on the peripheral wall of the rotating tub 5. On the front surface of the housing 1, there are provided an opening 1a for taking clothes 4 in and out and a door 7 for opening and closing the opening 1a. Similar openings 3 a and 5 b are also provided on the front side of the water tank 3 and the rotating tank 5, and the opening 3 a of the water tank 3 is water-tightly connected to the opening 1 a of the housing 1 by a bellows 8. The bottom of the aquarium 3 has a drain port 9 for discharging washing water, and is connected to a drain hose 11 via a drain valve 10, and its tip is led out of the machine.

  The blower 12 supplies hot air heated by the heater 13 from the air supply port 14 into the rotating tub 5, and a labyrinth seal configuration 19 is provided in a gap between the counter opening side of the water tub 3 and the rotating tub 5. have. The circulation duct 15 performs dehumidification of the damp drying air that has passed through the rotary tank 5 and the water tank 3, and has one end connected to the exhaust port 16 at the bottom of the water tank 3 and the other end connected to the blower 12. . The water supply valve 17 controls water supply from a water supply hose 18 connected to a tap or the like of a water supply.

  In the above configuration, when the washing operation is performed, the door 7 is opened, the clothes 4 and the detergent are put into the rotating tub 5, and the operation is started.

  First, when the water supply valve 17 opens the water supply port on the washing water side and a predetermined amount of water is supplied into the water tank 3 and the rotary tank 5, the drive motor 6 is activated, and the rotary tank 5 is driven to rotate to perform a washing operation. Do. After a predetermined time, the drive motor 6 is stopped, the drain valve 10 is opened, and dirty water is drained from the rotary tank 5 and the water tank 3 and drained to a drainage place outside the machine via the drain hose 11.

  Next, water is supplied to the water tank 3 and the rotary tank 5 in the same manner as described above, and a rinsing operation is performed. When the rinsing operation is completed, the drain valve 10 is opened and drained, and then the rotating tub 5 is rotationally driven by the drive motor 6 at a high speed, whereby the clothes 4 are dehydrated.

  When the washing operation is completed as described above, the drying operation is started.

  In the drying process, the air heated by the heater 13 becomes warm air while rotating the rotating tub 5 at a low speed by the drive motor 6 and stirring the clothes 4, and is blown in the direction of arrow a by the blower 12. Into the rotary tank 5. This hot air takes away moisture from the garment 4, then passes through the water tank 3 through the small hole 5 a of the rotating tub 5 and reaches the circulation duct 15 through the exhaust port 16.

  At this time, the water supply valve 17 opens the water supply port on the cooling water side, and cooling water is poured into the circulation duct 15. When the warm air containing moisture from the clothing 4 deprives moisture and passes through the circulation duct 15, the cooling water cools it to cause moisture condensation, and the moist warm air is dehumidified and again as shown by the arrow. Return to the blower 12. This cooling water and dew condensation water is drained out of the machine via the drain valve 10. By circulating hot air through the circulation path of the blower 12, the heater 13, the air supply port 14, the rotary tank 5, the water tank 3, the exhaust port 16, and the circulation duct 15, the clothes 4 in the rotary tank 5 can be dried. it can.

  In the above conventional configuration, the warm air blown from the arrow d by the blower 12 in the direction of the arrow a is divided into the directions of the arrows b and c without being used for drying the clothes 4 and flows in the direction of the arrow c. The warm air passes through the labyrinth seal structure 19 and directly reaches the circulation duct 15 through the exhaust port 16. Therefore, the amount of warm air sent into the rotary tub 5 from the air supply port 14 is reduced due to the increase in ventilation resistance as the amount of clothing increases. That is, as the amount of clothing increases, there is a problem that the amount of warm air that comes into contact with the clothing decreases and the drying performance deteriorates.

  Further, the labyrinth seal configuration 19 takes into account the amount of eccentricity when the rotating tub 5 is rotated with respect to the water tub 3, particularly during dehydration, and has a gap of 3 mm to 5 mm when stopped to make the ventilation circuit a maze. As a result, the ventilation resistance is increased, the amount of air passing is reduced as much as possible, and the drying efficiency is improved.

Therefore, a washing / drying machine in which a wall member is provided on the inner peripheral portion of the opening of the rotating tub has been proposed (see, for example, Patent Document 1). According to this configuration, it has been found that clothes can be dried more efficiently.
Japanese Patent Laid-Open No. 2004-8683

  However, in the ventilation circuit configuration as described above, since the amount of warm air flowing into the rotating tub drastically decreases as the amount of clothing increases, there is a problem that the drying performance is inferior, and the improvement of the drying performance when the amount of clothing increases. It was essential.

  The present invention solves the above-described conventional problems, and the warm air blown in the direction of the arrow 20 by the blower 12 is used for drying the clothing 4 even if the amount of the clothing 4 is increased. The purpose is to realize an excellent washing and drying machine.

  In order to solve the above-described conventional problems, a washing and drying machine according to the present invention includes a water tank elastically supported in a housing, a rotary tank that houses clothes rotatably provided in the water tank, and a rotary shaft of the rotary tank. A blower port is provided on the surface of the water tank having a rotation axis, a blower passage having an air supply port is formed on the surface of the rotary tank having a rotation shaft, and a blower for blowing air from the water tank into the rotary tank is provided, and the rotation A seal member provided substantially concentrically with the rotary shaft is provided between the surface of the rotary tank having the shaft and the surface of the water tank facing through the air passage, and the seal member and the cover are provided when the blower is in operation. A gap between the seal portions is closed, and a gap is provided between the seal member and the sealed portion when the blower is stopped.

  Thereby, it is less influenced by the amount of clothing, and a washing / drying machine excellent in drying performance and durability performance can be realized.

  The washing and drying machine of the present invention exhibits a sealing function by elastically deforming the sealing member toward the sealed portion side by the wind pressure when the warm air passes through the air passage by the air blower during the drying process. Can be prevented from flowing directly into the exhaust port, the amount of inflow from the air supply port into the water tank can be secured, and the drying performance of clothes can be improved.

  Further, in the cleaning process and the rinsing process, since the blower does not operate, no wind pressure is generated on the seal member. As a result, a clearance with the sealed portion can be secured, and wear due to friction of the seal member due to rotation. The durability of the seal member can be improved. Further, since there is no rubbing sound, low noise operation is possible.

  In addition, lint accumulated between the seal member and the sealed part during the drying process can be removed in the washing and rinsing steps, thus realizing a washing and drying machine with excellent drying performance and durability. can do.

  According to the first aspect of the present invention, there is provided a water tank elastically supported in a housing, a rotary tank for storing laundry such as clothes rotatably provided in the water tank, and one end opened in the water tank. A supply air passage for introducing air outside the housing from the other end, a blow-off port provided on a side wall of the rotary tub, and a space between the water tank side wall and the rotary tub side wall. And a sealing device that protrudes into the air passage and guides the air in the air passage into the rotary tank through the outlet port when air is blown into the air passage. is there.

  By adopting such a configuration, a sealing device that works in conjunction with air blowing can be obtained, and the wind of the air passage can be guided into the rotating tub in the drying process, and a highly reliable washing and drying machine can be obtained.

  According to a second aspect of the present invention, there is provided a seal member that protrudes into the air passage and is flexibly deformed by the wind pressure in the air passage to prevent air leakage from the air passage.

  By adopting such a configuration, when the hot air passes through the air blowing path by the blower device during the drying process, the seal member is flexibly deformed to the sealed portion side by the wind pressure, and the hot air is exerted. Since it does not flow directly to the exhaust port but enters the water tank through the air supply port and dries the clothes, the drying performance can be improved. In the cleaning process and the rinsing process, since the blower is stopped, no wind pressure is generated on the seal member, a clearance between the seal member and the sealed portion is secured, and wear due to friction of the seal member due to rotation occurs. And the durability of the seal member can be improved. Further, since there is no rubbing sound, low noise operation is possible. In addition, since lint that has been volumed between the sealing member and the sealed portion during the drying process can be removed by the washing process and the rinsing process, a washing and drying machine having excellent drying performance and durability can be realized.

  According to a third aspect of the present invention, the seal member is formed in an annular shape, and a tip end portion of the seal member projects into the air passage.

  By adopting such a configuration, the sealing member can be securely adhered to the portion to be sealed, the warm air can be surely brought into contact with the clothing, and a washing / drying machine having further excellent drying performance can be realized.

  According to a fourth aspect of the present invention, the seal member is formed such that a tip portion thereof is thinner than a root portion.

  By adopting such a configuration, the sealing member is securely adhered to the sealed portion, and the amount of warm air flowing into the rotating tub is ensured, so that the warm air can be reliably brought into contact with the clothing, and the drying performance is improved. An excellent washing and drying machine can be realized.

  According to a fifth aspect of the present invention, the seal member is formed of an elastic body that can be flexibly deformed.

  By adopting such a configuration, the sealing member can be securely brought into close contact with the sealed portion by making use of the flexible deformation characteristics of the sealing member, the amount of hot air flowing into the rotating tank is ensured, and the hot air is reliably It is possible to achieve a washing and drying machine that can be brought into contact with clothes and has excellent drying performance.

  According to a sixth aspect of the present invention, the sealing member is formed with a wall thickness changing portion or a bellows-shaped portion that can be expanded and contracted between the tip portion and the root portion thereof.

  By adopting such a structure, the flexible property of the sealing member is improved, and it is not affected by the amount of clothing, and it is deformed even by a slight air flow, and the laundry has excellent drying performance by a reliable sealing function. A dryer can be realized.

  In a seventh aspect of the present invention, the seal member is made of at least two layers of materials having different coefficients of thermal expansion.

  By adopting such a configuration, it is easy to cause flexible deformation of the sealing material even if a slight air volume and temperature rise using the deformation characteristics of different thermal expansion coefficients, thereby exhibiting a sealing function, Since it is surely brought into contact with clothes, a washing / drying machine excellent in drying performance can be realized.

  According to an eighth aspect of the present invention, a recessed portion with which the tip end portion of the seal member abuts is formed on the sealed portion side of the air passage.

  By adopting such a configuration, the contact area (seal area) between the seal member and the sealed portion can be increased, the hot air can be prevented from leaking, and the warm air can be reliably brought into contact with the clothing, and the drying performance is excellent. A washing and drying machine can be realized.

  The invention according to claim 9 is such that the seal member is fixed to the water tank side.

  By adopting such a configuration, it is easy to receive wind pressure at the tip of the seal member, and as a result, high adhesion to the sealed portion is obtained, warm air can be reliably brought into contact with clothing, and the drying performance is excellent. A washing and drying machine can be realized.

  The invention according to claim 10 is such that the seal member is fixed to the rotating tub side.

  With this configuration, since the seal member rotates together with the rotating tub, a washing action during the washing process and a washing action for removing lint adhered to the seal portion by a centrifugal force during the dehydration process are obtained over a long period of time. A high degree of adhesion between the sealing member and the sealed portion can be maintained, and a washing / drying machine excellent in drying performance can be realized.

(Embodiment 1)
FIG. 1 is an external perspective view of the washing / drying machine according to the first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the housing 1 as viewed from the side surface 1b. FIGS. 3 and 4 are enlarged views of the air passage portion of FIG. 2, respectively showing the time when the air blower is stopped and the time of operation.

  As shown in FIGS. 1 to 4, a cylindrical water tank 3 elastically supported by a plurality of suspensions 2 is provided inside the housing 1, and vibrations during washing and dehydration are absorbed by the suspension 2. . Inside the water tank 3, a cylindrical and horizontal axis type rotating tank 5 that accommodates laundry (hereinafter referred to as clothing) 4 is rotatably provided. The rotating tank 5 has a rotating shaft 6a, and is driven to rotate by a drive motor 6 through the rotating shaft 6a. On the front surface of the housing 1, there are provided an opening 1a for taking in and out the clothing 4 and a door 7 for opening and closing the opening 1a. The front side of the water tank 3 and the rotating tank 5 also have openings 3 a and 5 b for putting clothes 4 in and out. The opening 3 a of the water tank 3 is opened by the bellows 8 in the opening 1 a of the housing 1. And watertightly connected. In addition, the bottom of the water tank 3 has a drain 9 for discharging washing water, and the drain 9 is connected to a drain valve 10.

  The air blower 12 that is located in the air flow path 20 and constitutes the air blower 21 is provided on the back surface portion of the water tank 3 so as to be located in a corner space formed by the side surface 1b and the back surface 1c of the housing 1. . The blower 12 communicates with a blower passage 20 provided on the back surface of the water tank 3, blows air from the blower passage 20 in the direction of arrow c, and supplies the air into the rotary tank 5 from the air supply port 14. A circulation duct 15 is provided on the outer surface of the water tank 3 so as to communicate with the exhaust port 16 at the lower back of the water tank 3. The circulation duct 15 passes through the rotary tank 5 and the water tank 3 and comes out of the exhaust port 16. Air is led out to the circulation duct 15 as indicated by an arrow d.

  In the part away from the rotating shaft 6a of the rotating tub 5 from the air passage 20, the surface of the rotating tub 5 having the rotating shaft 6a and the surface of the water tank 3 facing the air passage 20 are formed in an annular shape. A seal member 22 is provided. When the air blower 21 is operated, the seal member 22 is flexibly deformed by the wind pressure to prevent the passage of gas. The seal member 22 is arranged substantially concentrically with the rotary tank 5 around the rotary shaft 6a. Has been.

  Here, when the blower 21 is stopped as in a cleaning process or a rinsing process, the sealing member 22 has a gap A of 3 mm to 5 mm between the sealing tank 22 and the wall surface of the rotating tub 5 as a sealed portion as shown in FIG. have. In the drying process, since the blower 21 is in operation, the gap between the sealing member and the member to be sealed is closed in order to satisfy the sealing function for preventing the passage of gas.

  The sealing member 22 is formed of a soft elastic body such as a rubber material so as to be flexibly deformed by receiving the wind pressure from the blower 12, and as shown in the cross section of FIG. The part is formed with a thickness changing part 22a which is thick and repeats alternately thin. The thickness changing portion 22a facilitates the flexible deformation of the seal member 22 even with a small wind pressure. This configuration is not limited to the thickness changing portion 22a, but may be a uniform thickness bellows with a slightly small thickness. Further, the sealing member 22 is composed of at least two layers of materials having different thermal expansion coefficients, and a material having a large expansion coefficient is used on the counter-rotating tank 5 (inner surface of the water tank 3) to receive hot air. Sometimes, the heat expands to make it easier for the tip of the seal member 22 to approach the rotating tub 5 side. As a configuration of the seal member 22 for this purpose, the material to be used is not limited to two layers but may be more than that.

  In addition, it cannot be overemphasized that the opening position etc. of the said ventilation path 20 are considered so that the said air blower 12 may not receive the influence of the water at the time of washing | cleaning.

  Next, the operation of the washing / drying machine having the above configuration will be described.

  In the washing process, water is supplied into the water tank 3 with the drain valve 10 closed until a predetermined water level (not shown) is reached, and the drive motor 6 rotates the rotating tank 5 containing the clothes 4 and the washing water. Wash.

  At this time, since the blower 21 is not in operation, there is a gap between the seal member 22 and the sealed portion, and the cleaning process ends without contact between the two. Therefore, since there is no wear of the seal member 22 or generation of frictional noise due to contact between the both, the life of the seal portion can be extended, and the durability of the seal member 22 can be improved and the noise can be reduced. .

  In the rinsing process after washing, water is supplied into the water tank 3 as in the washing process, and the garment 4 is rinsed by rotating the rotating tank 5.

  Also in this case, the relationship between the sealing member 22 and the sealed portion is the same as that in the cleaning step, and durability can be improved and noise can be reduced.

  Further, in the dehydration step, the drain valve 10 is opened to drain water to the outside of the machine, and then the rotating tub 5 containing the clothing 4 is rotated at high speed by the drive motor 6 to dehydrate. At this time, even if the rotating tub 5 is operated in an eccentric state, the gap between the seal member 22 and the sealed portion is secured, and thus the durability and noise reduction can be similarly achieved.

  Further, in the drying process, the blower 12 is operated, and the warm air heated by the heater 13 is blown into the rotary tank 5 from the air supply port 14 through the blower passage 20. In this state, the rotating tub 5 is rotationally driven at a low speed by the drive motor 6, and the clothes 4 are stirred up and down.

  Here, since the tip of the seal member 22 fixed to the water tank 3 side extends into the air passage 20, when warm air passes through the air passage 20 by the air blower 21, the air pressure is received. Then, the thickness changing portion 22a is mainly bent, and the tip portion thereof is in close contact with the side wall of the rotating tub 5 on the sealed portion side as shown in FIG. The contact between the tip of the seal member 22 and the side wall of the rotary tank 5 is such that the seal member 22 is formed in an annular shape, so that all the air supply ports 14 provided on the side wall of the rotary tank 5 are placed in the annular region. Then, the wind from the air passage 20 is guided into the rotary tank 5. Therefore, the warm air does not flow directly to the exhaust port 16 but always enters the water tank 3 through the air supply port 14 and dries the clothes 4, so that the drying performance is improved. And the warm air sent into the rotary tank 5 from the air supply port 14 deprives the moisture of the clothing 4, then passes through the water tank 3 from the small hole 5 a of the rotary tank 5, and passes through the exhaust port 16 to circulate the duct. To 15.

  Here, the warm air flowing through the air blowing path 20 affects the amount of the clothes 4 in the rotating tub 5 and the wind pressure changes somewhat. However, the flexible deformation of the seal member 22 is determined by the determined clothes 4. The material, the thickness of the thickness changing portion 22a, etc. are set so as to sufficiently follow the pressure and exhibit the sealing effect.

  Further, in this drying process, the water supply port on the cooling water side in the water supply valve 17 is open, and cooling water is poured into the circulation duct 15. Therefore, when the warm air deprived of moisture from the garment 4 passes through the circulation duct 15, it is cooled by the cooling water to cause condensation of the moisture, and the moist warm air is dehumidified and the arrow d As shown in FIG. On the other hand, the cooling water and the dew condensation water are drained out of the apparatus via the drain valve 10.

  In this way, by circulating hot air through the circulation path of the blower 12, the heater 13, the air supply port 14, the rotating tank 5, the water tank 3, the exhaust port 16, and the circulation duct 15, the clothing 4 in the rotating tank 5 is made to circulate. Can be dried.

  Further, the sealing member 22 is not affected by the amount of the garment 4 because the cross-section is thinner from the root part toward the tip part or the thickness changing part 22a is provided in part. It is deformed by the wind pressure due to a slight air volume and adheres to the sealed part. Furthermore, since the sealing member 22 is made of at least two layers of materials having different coefficients of thermal expansion, even if the air volume is small due to the amount of the garment 4, the tip portion thereof increases as the temperature of the air increases. Is thermally expanded and deformed toward the sealed portion side, so that the drying efficiency is improved.

  According to the steam embodiment 1, when the warm air passes through the air passage 20 by the air blower 21 during the drying process, the seal member 22 is flexibly deformed to the sealed portion side by the wind pressure. Since the sealing function is exhibited by the flexible deformation of the member 22, the warm air does not flow directly to the exhaust port 16, but is guided from the air supply port 14 into the water tank 3 to dry the clothes 4. As a result, the drying performance of the clothing 4 and the like is improved.

  Further, in the cleaning process and the rinsing process, the air blower 21 does not operate, so that no wind pressure is generated on the seal member 22. As a result, a gap between the seal member 22 and the sealed portion is ensured, and the seal member 22 is not worn meaninglessly due to friction associated with the rotation of the rotating tub 5, and the durability of the seal member 22 can be improved. it can. Further, since there is no rubbing sound, low noise operation is possible. Further, the lint that has been volumed between the sealing member and the sealed portion during the drying process can be removed by the washing process and the rinsing process, and a washing / drying machine having excellent drying performance and durability can be realized.

  In the first embodiment, the heater 13 and the blower 12 are installed below the drive motor 6, but may be installed above the drive motor 6.

  In the first embodiment, a heater is used for heating the drying air, and cooling water from the water supply port is used for dehumidification. However, a heat pump cycle that performs heating and dehumidification (cooling) using a refrigerant compressor is used. May be used.

(Embodiment 2)
5 and 6 show a washing / drying machine according to Embodiment 2 of the present invention. The same components as those in Embodiment 1 are given the same reference numerals, and detailed description thereof is omitted.

  The present embodiment is different from the first embodiment in that a recess 23 is provided on the side wall of the rotating tub 5 on the sealed portion side so that the tip of the seal member 22 contacts.

  With this configuration, the seal area formed by the seal member 22 and the sealed portion can be increased, and the sealing performance can be further improved.

  Accordingly, the adhesion of the seal member 22 to the sealed portion can be made more reliable, and a larger amount of hot air b can be brought into contact with the garment 4, so that the drying performance can be further improved.

(Embodiment 3)
7 and 8 show a washing / drying machine according to Embodiment 3 of the present invention. The same constituent elements as those of Embodiments 1 and 2 are given the same reference numerals and are detailed. Description is omitted.

  This embodiment is different from the previous embodiment in that the seal member 122 is provided on the side wall side of the rotating tub 5.

  Thereby, the lint (not shown) adhering to the seal member 122 can be removed by utilizing the centrifugal action of the rotating tub 5 that rotates at a high speed during the washing process and the dehydrating process. The high degree of adhesion of the sealed portion can be continuously maintained, and the reliability of the drying performance is improved.

(Embodiment 4)
9 and 10 show a washing / drying machine according to Embodiment 4 of the present invention. The same constituent elements as those in Embodiments 1 to 3 are given the same reference numerals and detailed description thereof is omitted. Omitted.

  In the present embodiment, as shown in FIG. 9, a labyrinth seal mechanism is provided between the surface of the rotating tub 5 having the rotation shaft 6 a and the surface of the water tub 3 facing through the air passage 20 in addition to the previous sealing member 22. 19 is provided.

  The labyrinth seal mechanism 19 is located in the inner region of the seal member 22 and is provided concentrically with the rotary shaft 6a of the rotary tub 5.

  As a result, the synergistic effect of the sealing function by the sealing member 22 and the sealing function by the labyrinth sealing mechanism 19 can further enhance the sealing effect, more reliably guide the warm air b into the rotating tub 5, and more temperature. The wind can be brought into contact with the garment 4 to improve the drying performance.

  The labyrinth seal mechanism 19 can also be provided outside the seal member 22 as shown in FIG.

  Moreover, in each said embodiment, although the sealing member 22 was set as the structure which makes the front-end | tip protrude in the ventilation path 20 using the wind pressure by the warm air in the ventilation path 20, it is not restricted to this structure, A ventilation apparatus A mechanism means for projecting the seal member in conjunction with the operation of 21 or the switching operation to the drying process may be provided.

  As described above, the washing and drying machine according to the present invention has an air blowing function that brings a stable amount of warm air into contact with clothing without being affected by the amount of clothing in the drying process. Since the performance can be ensured and the drying time can be shortened, it is useful for a washing dryer for drying and dehumidifying, a drying apparatus for drying in a rotating tank, and the like.

1 is an external perspective view of a washing / drying machine according to Embodiment 1 of the present invention. The longitudinal cross-sectional view which shows the internal structure of the washing / drying machine in Embodiment 1 The expanded sectional view of the ventilation circuit part which shows the non-seal state of the washing / drying machine in Embodiment 1 The expanded sectional view of the ventilation circuit part which shows the sealing state of the washing-drying machine in Embodiment 1 The principal part expanded sectional view of the ventilation circuit part which shows the non-sealing state of the washing-drying machine in Embodiment 2 of this invention The principal part expanded sectional view of the ventilation circuit part which shows the sealing state of the washing / drying machine in Embodiment 2 The expanded sectional view of the ventilation circuit part which shows the non-sealing state of the washing dryer in Embodiment 3 of this invention The expanded sectional view of the ventilation circuit part which shows the sealing state of the washing dryer in Embodiment 3 The longitudinal cross-sectional view which shows the seal state of the combination with the labyrinth seal structure of the washing dryer in Embodiment 4 of this invention The longitudinal cross-sectional view which shows the seal state of a different combination with the labyrinth seal structure of the washing / drying machine in Embodiment 4 A longitudinal sectional view showing the internal structure of a conventional washing and drying machine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Suspension 3 Water tank 4 Clothing 5 Rotating tank 6 Drive motor 6a Rotating shaft 14 Air supply port 20 Blower circuit 21 Blower device 22 Seal member 22a Thickness change part 23 Concave part 122 Seal member A Gap

Claims (10)

  A water tub elastically supported in the housing, a rotating tub for storing laundry such as clothes rotatably provided in the water tub, one end opened in the water tub, and air outside the housing from the other end A supply air passage for introducing air, an air outlet provided in a side wall of the rotating tub, an air passage formed between the water tank side wall and the side wall of the rotating tub and communicating the air outlet and the supply air passage, and the air blowing A washer / dryer provided with a seal device that projects into the air passage and guides the air in the air passage into the rotating tub through the outlet when the air flows into the passage.   The washing and drying machine according to claim 1, further comprising a seal member that protrudes into the air passage and is flexibly deformed by the wind pressure in the air passage to prevent leakage of air from the air passage.   The washing / drying machine according to claim 1 or 2, wherein the seal member is formed in an annular shape, and a tip portion of the seal member projects into the air blowing path.   The washing / drying machine according to claim 3, wherein the seal member has a tip portion thinner than a root portion.   The washing / drying machine according to claim 3 or 4, wherein the seal member is an elastic body that can be flexibly deformed.   The washing / drying machine according to any one of claims 1 to 5, wherein the sealing member is formed with a thickness changing portion or a bellows-shaped portion that can be expanded and contracted alternately between a tip portion and a root portion.   The washing and drying machine according to any one of claims 1 to 5, wherein the seal member is made of at least two layers of materials having different coefficients of thermal expansion.   The washing / drying machine according to any one of claims 1 to 7, wherein a recessed portion with which a front end portion of the seal member abuts is formed on a sealed portion side in the air blowing path.   The washing / drying machine according to any one of claims 1 to 8, wherein the seal member is fixed to the water tank side.   The washing / drying machine according to any one of claims 1 to 8, wherein the sealing member is fixed to the rotating tub side.