JP2005118586A - Washer/drier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a washer/drier in which a detergent injector and a lint scavenging filter are easy to operate. <P>SOLUTION: A circulation air course is prepared on the outside of an outer tub 5 which contains a wash and spin-dry tub 2, which rotates on a vertical axis, and whose upper end is opened, an inner lid 32 which closes openably a clothing charging port is formed in the upper end of the outer tub, and the blowing in mouth 30 of the circulation air course is formed in the back part. A detergent dissolving receptacle 21 is formed in a top cover 9. A detergent injection box can be drawn out on the inside of the clothing charging port, the lint scavenging filter can be drawn out on the upper side of the inner lid, and therefore operation is easy. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a washing / drying machine.

  The outer tub is installed so as to be suspended in the outer frame by an anti-vibration support device, and air is circulated in the washing / dehydration tub after the dehydration process in a washing machine provided with a washing / dehydration tub and a stirring blade in the outer tub. Thus, there has been proposed a washing / drying machine to which means for drying the laundry in the washing / dehydrating tub is added.

  In this washer / dryer, a circulation fan and a heater are installed at the upper part of the outer frame, and the air sucked from the suction port formed at the lower part of the outer tub is water-cooled and dehumidified in the air passage leading to the circulation fan, and the dehumidified air is heated by the heater. After being heated in step 1, the air is blown from the blowing port into the upper opening of the washing and dewatering tank.

  In this type of conventional washing and drying machine, the outer tub vibrates (oscillates) and the relative positional relationship with the outer frame fluctuates during washing, dehydration and drying processes. It is configured to be connected to the mouth via a vibration absorbing member (rubber bellows hose), and a strange odor is generated from rubber exposed to warm air or yarn waste accumulated in the bellows.

  In addition, the circulation fan installed at the upper part of the frame increases the height of the washing / drying machine, which increases the size of the washing / drying machine itself, greatly increases the price, and increases the cost of packing and transportation.

  In addition, the circulating air passage is required to have a watertight and airtight structure because the washing water enters in the washing process and the hot air wet in the drying process is circulated to perform water cooling and dehumidification.

  One object of the present invention is to propose a laundry dryer which is easy to operate.

  Specifically, it is to facilitate the operation of the high-concentration detergent liquid production / supply means (particularly the detergent charging box) and the yarn waste collecting means (particularly the yarn waste filter).

  The present invention includes a washing and dewatering tub having a stirring blade disposed at the bottom, an outer tub having an upper end opened and a circulation air passage provided on the outer side, an outer frame having an upper end opening including the outer tub, and an outer frame. It has an outer garment inlet that can be opened and closed by a lid at the center, a rear storage that houses a water supply solenoid valve and high-concentration detergent solution generation / supply means at the rear, and is attached to the upper end of the outer frame. A top cover and an inner garment inlet that can be opened and closed by an inner lid at the center, the circulation air passage blowing means and the lint collecting means are installed at the rear, and the upper end of the outer tub And an outer tank upper cover attached to the section.

  The present invention also includes an outer tub in which a washing and dehydrating tub is installed on the inner side, and the air in the outer tub is sucked out from a suction port provided in a lower portion of the outer tub, and the sucked air is discharged to the upper portion of the washing and dehydrating tub. A circulation air passage that blows into the washing and dewatering tub from the air inlet provided facing the opening, a water-cooling dehumidifying means for water-cooling and dehumidifying the circulation air sucked into the circulation air passage from the outer tub, and heating the water-cooled and dehumidified circulation air In the washer / dryer provided with a heating means, a circulation fan installed in the circulation air passage to generate circulation air is installed to be positioned below the outer tub, and the circulation air passage is A dehumidifying air passage portion extending upward from the lower part of the tank to a position higher than the washing water level in the washing process, a descending air passage portion that is folded back at the upper end of the dehumidifying air passage portion and extends downward to the suction port of the circulation fan, and the circulation fan Blowing from the outlet The dehumidifying air passage portion is formed by an air duct duct integrally formed with the outer tub. The upper end portion of the air duct of the road portion and the upper end portion of the air duct of the descending air passage portion are connected by an upper folding member, and the upper end portion of the air duct of the ascending air passage portion is connected to the inlet member, A yarn waste collecting means is installed in the upper folding member, and a heating means is installed in the blowing member.

  In the present invention, the operation of the high-concentration detergent liquid production / supply means (particularly the detergent input box) and the yarn waste collecting means (particularly the yarn waste filter) is easy.

The washing and drying machine of the present invention includes a washing and dewatering tub having a stirring blade disposed at the bottom, an upper end that is open, and an outer tub that is provided with a circulation air passage on the outside, and an outer end that is outside the upper end opening that includes the outer tub. It has a frame and an outer garment inlet that can be opened and closed by an outer lid at the center, and a rear storage part that stores a water supply solenoid valve and high-concentration detergent solution generation / supply means at the rear. A top cover attached to the upper end, and an inner garment inlet that can be opened and closed by an inner lid are provided in the center, and the circulation air blowing means and the lint collecting means are installed at the rear, An outer tank upper cover attached to the upper end of the outer tank,
The high-concentration detergent liquid generation / supply means includes a detergent input box that can be pulled out to the inside of the outer clothing input port,
The lint collecting means comprises a lint collecting filter that can be pulled out to the upper side of the inner lid,
The lint collecting filter is provided so as to be pulled out in an obliquely upward direction,
The blowing means incorporates a heater for heating the circulating air, and the heater is installed obliquely so that the ventilation path is inclined in the vertical direction,
The washing water and the high-concentration detergent liquid are supplied to the washing and dewatering tank through a passage that penetrates the rear part of the outer tank cover.

  Embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic view showing a washing / drying machine according to an embodiment of the present invention in a longitudinal section.

  Reference numeral 1 denotes a rectangular cylindrical outer frame constituting the outer shell. Reference numeral 2 denotes a washing and dewatering tub, which has a small hole 2a for water passage and ventilation on its peripheral wall, a fluid balancer 3 on its upper edge, and a stirring blade 4 on the inside of the bottom for rotation. To do. The stirring blade 4 has a small hole 4a for water flow and ventilation. Reference numeral 5 denotes an outer tub containing the washing / dehydrating tub 2. The drive device 6 is attached to the outside of the bottom portion by a steel plate mounting base 7 and is engaged with the four corners of the upper end portion of the outer frame 1. The anti-vibration support device 8 supports the outer tub 5 so as to be suspended from the center of the outer frame 1 by suspending the outer tub 5 evenly from four directions.

  The drive device 6 includes a drive motor, an electric operation clutch mechanism, and a planetary gear speed reduction mechanism, and rotates the stirring blade 4 with the washing / dehydrating tub 2 stationary (stirring mode), thereby stirring the washing / dehydrating tub 2 and the stirring / dehydrating tub 2. Each of the blades 4 is rotated in the opposite direction (washing mode) and has a selective driving function of rotating the washing / dehydrating tub 2 and the stirring blade 4 integrally in the same direction (dehydration / drying mode).

  The top cover 9 formed with the outer garment insertion port 9a is fitted into the opening edge so as to cover the upper opening of the outer frame 1, and is attached to the outer frame 1 together with the front panel 10 and the back panel 11 with mounting screws.

  A front panel box 12, which is a front storage portion formed between the top cover 9 and the front panel 10, includes a power switch 13, an operation panel 14 including an input switch group and a display element group, A water level sensor 15 for generating a water level signal corresponding to the water level and a control unit 16 are incorporated. These constitute a control device.

  A back panel box 17, which is a rear housing portion formed between the top cover 9 and the back panel 11, contains washing water supply means and high-concentration detergent solution generation / supply means, which will be described later, side by side.

  The washing water supply means is constituted by a main water supply electromagnetic valve 20 having a water inlet side connected to a faucet connection port 18 and a water outlet side connected to a water injection port 19.

  The high-concentration detergent solution generating / supplying means supplies detergent-dissolved water from the auxiliary water supply electromagnetic valve 22 to the detergent-dissolving container 21, and the detergent-dissolving water while stirring the powdered synthetic detergent put in the detergent-dissolving container 21. A high-concentration detergent solution is produced by dissolving in the above, overflowing from the detergent dissolution container 21 while being diluted with further water supply, supplied to the water inlet 19, and a finishing agent charging chamber attached to the detergent dissolution container 21 (details will be described later) In this case, the water is overflowed and supplied to the inlet 19.

  The water injection port 19 passes through the bottom of the top cover 9 and the rear portion of the outer tub upper cover 28 of the outer tub 5 and opens into the upper opening of the washing and dewatering tub 2. In the water injection port 19, a flexible tube 19 a (see FIG. 3) is interposed between the bottom of the top cover 9 and the outer tub upper cover 28.

  The hot air circulation drying means is formed so as to extend vertically from the suction port 5a formed on the lower side wall of the outer tub 5 along the outer wall surface on the rear side of the outer tub 5, and from the suction port 5a. A water-cooled dehumidifying duct 23 that is a dehumidifying air passage section that dams the infiltrated washing water, and a cooling water spraying section 24 that is located in the upper part of the water-cooled dehumidifying duct 23 and is a water-cooled dehumidifying means that supplies cooling water to the duct. A descending air duct 25 that is a descending air duct portion that is folded back at a position higher than the water level of the outer tub 5 in the washing process and extends vertically along the outer wall surface of the outer tub 5 toward the lower side of the outer tub 5. A circulation fan 26 that is disposed in a space below the outer tub 5 and sucks air from the descending air duct 25 into the suction port to generate circulated air, and from the outlet of the circulation fan 26 to the outer tub 5. Vertically upward along the outer wall A heating means for heating the circulating air sent from the rising air duct duct 27 installed on the ascending air duct duct 27 which is an upward air duct portion extending to the outer tank 5 and the outer tank upper cover 28 attached to the upper end portion of the outer tank 5 A heater (PTC heater) 29 is incorporated, and a blow-in port 30 for blowing the heated circulating air into the washing and dewatering tub 2 is provided.

  The water-cooled dehumidifying duct 23, the descending air duct 25 and the ascending air duct 27 constituting the circulation air path are arranged on the outer wall surface on the rear side of the outer tank 5 in the circumferential direction of the outer tank 5 and a part thereof is outside the outer duct. The back cover 1a that is integrally molded with the tank 5 and mounted, and covers the outside of the tank 5 is configured to bulge outward and is screwed.

  Further, a humidity sensor 40 and a first temperature sensor 41 are installed in the descending air duct 25, and a second temperature sensor 42 is installed in the air path between the air inlet 30 and the downstream side of the heater 29. In order to accurately detect the humidity and temperature of the circulating air dehumidified in the water-cooled dehumidifying duct 23, the humidity sensor 40 and the first temperature sensor are mixed after the water-cooled dehumidified circulating air is well mixed and uniform. Therefore, the humidity sensor 40 and the first temperature sensor 4 are installed in the lower part of the descending air duct 25 far from the water-cooled dehumidifying duct 23 or in the suction casing 26 c of the circulation fan 26. Further, the humidity sensor 40 and the first temperature sensor 41 are set at an installation position where they are exposed when the back cover 1a is removed so as to be convenient for maintenance work.

  Although not shown in the figure here, a portion from the water-cooled dehumidifying duct 23 to the descending air duct 25 is provided with a lint collecting means to be described later.

  The outer garment insertion port 9a formed on the top cover 9 is covered with an outer lid 31 attached to the top cover 9 by a hinge 31a so as to open in half (mountain fold) so as to be openable and closable. The inner clothing input port 28a formed in the tank upper cover 28 is configured to be freely opened and closed by an inner lid 32 attached to the outer tank upper cover 28 by a hinge 32a.

  A drain port 5 b formed at the bottom of the outer tub 5 is connected to a drain hose 34 via a drain electromagnetic valve 33. The air trap 5 c is connected to the water level sensor 15 through the air tube 35. At the lower end edge of the outer frame 1, a base 37 made of synthetic resin with legs 36 attached to the four corners is attached.

  Reference numeral 38 denotes a laundry put in the washing and dewatering tub 2.

  FIG. 2 is a block diagram showing an electrical system of the washing / drying machine.

  The control unit 16 that receives power via the power switch 13 is configured around a microcomputer 16a, and includes a power supply circuit 16b, a driving device 6, a main water supply electromagnetic valve 20, auxiliary water supply electromagnetic valves 22, 22a, and a detergent stirring motor 39. And a drain electromagnetic valve 33, a circulation fan 26, a heater 29, and a drive circuit 16c having a semiconductor alternating current switching element (FLS) group for controlling power supply to the cooling water spray electromagnetic valve 24a.

  The drive motor 61 of the drive device 6 has a stator winding 61a and a rotation sensor 61b, and the electric operation clutch mechanism 62 has an electric operation machine 62a and a position sensor 62c for detecting the operation position.

  The drive circuit 16c includes two semiconductor AC switching elements (FLS) 16c1 and 16c2 for forward / reverse rotation control with respect to power supply control to the stator winding 61a of the drive motor 61 in the drive device 6. FLS16c1 is a semiconductor switching element for forward rotation power supply control, and FLS16c2 is a semiconductor AC switching element for reverse rotation power supply control. In this embodiment, the rotational speed control of the drive motor 61 is configured such that power is supplied to the stator winding 61a by phase control using the FLS 16c1 and 16c2, but an inverter-driven brushless motor is used. The configuration is configured to be performed by PWM control or PAM control. Further, the driving device 6 includes an FLS 16c3 for controlling power supply to the electric operating machine 62a of the electric operating clutch mechanism 62.

  Further, the drive circuit 16c controls the power supply to the main water supply electromagnetic valve 20, auxiliary water supply electromagnetic valves 22, 22a, detergent stirring motor 39, drainage electromagnetic valve 33, circulation fan 26, heater 29, and cooling water spray electromagnetic valve 24a. To 16c11. The drive circuit 16c controls the conduction state of the FLS 16c1 to FLS 16c11 in accordance with an instruction from the microcomputer 16a, and performs power feeding control to the subordinate load.

  The microcomputer 16a further includes a rotation sensor 61b of the drive motor 61, a position sensor 62c of the electric operation clutch mechanism 62, a water level sensor 15 for detecting the washing water level in the outer tub 5, a humidity sensor 40, and first and second temperatures. By connecting to the sensors 41 and 42, the unbalance detection sensor 43, and the operation panel 14 and executing a control processing program incorporated in advance, the input switch group 14a, the water level sensor 15, the rotation sensor 61b, and the position sensor of the operation panel 14 are executed. 62c, humidity sensor 40, first and second temperature sensors 41, 42, and unbalance detection sensor 43 are taken in and controlled by driving circuit 16c to detect, generate high-concentration detergent solution, wet laundry, high Concentration detergent solution generation / supply (soaking), washing, rinsing, dehydration and hot air drying are executed, Displaying the progress by controlling the display element group 14b of 14. Here, the unbalance detection sensor 43 causes the washing / dehydration tub 2 (outer tub 5) to move according to the unbalance of the distribution of the laundry 38 in the washing / dehydration tub 2 when the washing / dehydration tub 2 is rotated. It is a sensor that detects a large fluctuation above a predetermined value.

  In this washing and drying machine, the power switch 13 is turned on, the outer lid 31 and the inner lid 32 are opened, the laundry 38 is put into the washing / dehydrating tub 2, the outer lid 31 and the inner lid 32 are closed, and the operation panel 14 is closed. When the washing start switch is turned on, the control unit 16 detects the amount of cloth by rotating the stirring blade 4 while operating the driving device 6 and keeping the washing and dewatering tub 2 stationary. The amount of detergent is determined, and the display element group 14b of the operation panel 14 is controlled to display this.

  Then, when the outer lid 31 is opened, a corresponding amount of the powder synthetic detergent and finishing agent are put into the detergent dissolution container 21, and when the outer lid 31 is closed, the auxiliary water supply electromagnetic valve 22 is opened to dissolve the powder synthetic detergent. A tap water (detergent-dissolving water) of a suitable amount is supplied to the detergent-dissolving container 21, and the detergent stirring electric motor 39 is operated to dissolve the powdered synthetic detergent while stirring to produce a high-concentration detergent liquid.

  During this time, the driving device 6 is controlled so that the washing / dehydrating tub 2 and the stirring blade 4 are rotated slowly so that the laundry 38 is rotated and the main water supply electromagnetic valve 20 is opened to supply water, thereby supplying tap water to the laundry 38. The laundry 38 is wetted evenly to wet the laundry 38. The amount of water supply at this time is controlled so as to be stopped to such an extent that the laundry 38 can be uniformly moistened.

  Next, the auxiliary water supply solenoid valve 22 is opened to supply additional water to the detergent dissolution container 21 to overflow the high-concentration detergent solution in the detergent dissolution container 21 and supply it to the water inlet 19 and the main water supply solenoid valve 20. Is opened and supplied to the water inlet 19 to control the high-concentration detergent solution to be diluted to a desired detergent concentration (range of 5 to 30 times) and applied to the laundry 38. At this time, the washing and dewatering tub 2 and the stirring blade 4 are slowly rotated integrally or slowly so that the high-concentration detergent solution falls evenly on the laundry 38 and is uniformly submerged in the laundry 38. The drive device 6 is controlled to rotate or agitate the laundry 38 by rotating the agitation blade 4 while the cum dewatering tub 2 is stationary.

  When the detergent composition is dissolved in water and then diluted and further diluted to a high concentration detergent solution having a concentration of 5 to 30 times in the laundry 38, the chemical cleaning power of the detergent components is increased. Efficiently acts on dirt and improves cleaning power.

  After the high-concentration detergent solution is immersed in the laundry 38, the main water supply electromagnetic valve 20 and the auxiliary water supply electromagnetic valve 22 are controlled to open so that the washing water is supplied to a predetermined water level. Then, the drive device 6 is controlled so as to execute a washing process in which the stirring blade 4 is rotated forward and backward in the opposite direction to apply mechanical force to the laundry 38.

  After the washing process is completed, the drain electromagnetic valve 33 is controlled to open so that the washing water is drained outside the machine, and the washing / dehydration tank 2 and the stirring blade 4 are rotated at a high speed integrally to centrifugally dehydrate the washing water. The drive device 6 is controlled to perform intermediate dehydration. After the intermediate dehydration is finished, the drain electromagnetic valve 33 is controlled to be closed, the main water supply electromagnetic valve 20 is controlled to open up to supply water to a predetermined rinsing water level, and the washing / dehydration tank 2 and the stirring blade 4 are further connected. The driving device 6 is controlled so as to execute a rinsing process in which a mechanical force is applied to the laundry 38 by rotating forward and backward in the opposite direction. This rinsing step is performed a plurality of times as necessary, and the finishing agent is supplied by opening the auxiliary water supply electromagnetic valve 22a when water is supplied in the final rinsing.

  After the rinsing process is completed, the drain electromagnetic valve 33 is controlled to open so that the rinsing water is drained out of the machine. After the drainage, the washing / dehydrating tub 2 and the stirring blade 4 are integrally rotated at a high speed to supply the rinsing water. The drive unit 6 is controlled so as to perform final dehydration for centrifugal dehydration.

  The driving device 6 is controlled so that the washing / dehydrating tub 2 and the stirring blade 4 are rotated integrally or in the opposite direction so that the laundry 38 thus washed and centrifugally dehydrated is dried in the washing / dehydrating tub 2. The circulation fan 26 is operated and controlled so as to generate the circulating air that sucks out the humid air in the outer tub 5 and the washing / dehydrating tub 3 from the suction port 5a and blows it into the washing / dehydrating tub 2 from the blowing port 30. A hot air drying process is performed in which the water spraying electromagnetic valve 24a of the cooling water spraying section 24 is controlled so as to cool the air in the water cooling / dehumidifying duct 23, and the heater 29 is controlled so as to heat the air blown into the washing and dewatering tub 2. . The control of the hot air drying process is executed while monitoring the detection signals of the humidity sensor 40, the first temperature sensor 41, and the second temperature sensor 42, and ends when a desired dryness is obtained.

  3 to 8 show a specific configuration of the washing and drying machine described above, FIG. 3 is a longitudinal side view of the washing and drying machine, and FIG. FIG. 5 is a bottom view showing a part of the washing / drying machine, and FIG. 6 is a top view of the washing / drying machine showing the outer tub and the circulation air passage part by removing the upper cover, 7 is a vertical side view of the lint collecting portion, FIG. 8 is a top view showing the relationship between the outer frame and the outer tub, and FIG. 9 is an exploded view of the outer tub upper cover. A part of the description overlapping that of FIG. 1 is omitted.

  The rotary drive device 6 includes a reversible drive motor 61, an electrically operated clutch mechanism 62, a sun gear speed reduction mechanism 63, a central output shaft 64 to which the stirring blade 4 is coupled, and an outer output shaft 65 to which the washing and dewatering tub 2 is coupled. Is provided. The sun gear reduction mechanism 63 includes a sun gear directly connected to the drive motor 61, an internal gear directly connected to the outer output shaft 65, and a carrier that supports the planetary gear and is directly connected to the center output shaft 64. Then, by controlling the electric operation clutch mechanism 62 to the agitation mode, the rotational force of the drive motor 61 with the internal gear of the sun gear speed reduction mechanism 63 (connected to the outer output shaft 65 and the washing / dehydrating tub 2) stationary. Is transmitted through the sun gear, the planetary gear, and the carrier to the center output shaft 64 to rotate the stirring blade 4 forward and backward, and the electric operation clutch mechanism 62 is controlled to the washing mode, thereby the sun gear reduction mechanism 63. The internal gear (connected to the outer output shaft 65 and the washing and dewatering tub 2) is in a freely rotating state, and the rotational force of the drive motor 61 is decelerated through the sun gear, the planetary gear, and the carrier and transmitted to the central output shaft 64. As a result, the stirring blade 4 is rotated forward and backward, and a reaction force acting on the internal gear is transmitted to the outer output shaft 65 to rotate the washing and dewatering tub 2 in the direction opposite to the stirring blade 4, and the electrically operated clutch mechanism 6. Is controlled to the dehydration / drying mode, the sun gear and the internal gear of the sun gear speed reduction mechanism 63 are directly connected to the drive motor 61, and the rotational force of the drive motor 61 is transmitted via the center output shaft 64 and the outer output shaft 65. It is the structure which transmits to the washing and dewatering tank 2 and the stirring blade 4 and rotates them integrally.

  The vertical portion of the water-cooled dehumidifying duct 23 in the circulation air passage is located along the outer tub 2 so as to be located at the last portion of the cylindrical outer tub 5, that is, the portion closest to the back lid 1a of the outer frame 1. The tank 2 is formed by molding integrally with the side wall continuously from the peripheral edge of the suction port 5a. The water-cooled dehumidifying duct 23 is formed in a rectangular air passage cross-sectional shape having a narrow depth and a wide lateral width so as to be suitable for placement in a narrow space between the outer tub 2 and the rear lid 1a. Thus, the water-cooled dehumidifying duct 23 having a wide, substantially rectangular air passage cross-sectional shape is suitable for cooling and dehumidifying circulating air because the wall surface becomes wide and the circulating air cooling wall surface increases.

  A vertical portion of the descending air duct 25 is formed by integral molding on the side wall of the outer tub 5 so as to be a side wall common to the water-cooled dehumidifying duct 23 next to the water-cooled dehumidifying duct 23. Since this position is separated from the back lid 1a due to the curvature of the outer tub 5, the cross-sectional shape of the air passage is formed in a substantially square shape with a widened depth and a narrow width, thereby suppressing the spread of the lateral width of the circulating air passage. Configure as follows.

  A vertical portion of the ascending air duct 27 is formed by integral molding on the side wall of the outer tub 5 so as to be a side wall common to the water-cooled dehumidifying duct 23 on the side opposite to the water-cooled dehumidifying duct 23. Since this position is separated from the back lid 1a due to the curvature of the outer tub 5, the cross-sectional shape of the air passage is formed in a substantially square shape with a widened depth and a narrow width, thereby suppressing the spread of the lateral width of the circulating air passage. Configure as follows.

  Thus, the outer side surfaces of the ducts 23, 25, 27 integrally formed on the side wall along the rear side wall of the outer tub 5 are bulged portions of the back side lid 1 a constituting the rear side wall of the outer frame 1. Are formed in a substantially linear shape so as to face each other at a predetermined interval. The outer tub 5 is formed by evenly suspending the outer tub 5 from four directions by four anti-vibration support devices 8 locked to the reinforcing members 1b coupled to the four corners of the upper end of the outer frame 1. It is supported so as to be suspended from the center of the frame 1.

  An upper folding member 44 that connects the vertical portion of the water-cooled dehumidifying duct 23 and the upper end portion of the descending air duct 25 extends over the rear portion of the upper surface of the outer tub upper cover 28 attached to the upper end of the outer tub 5 and collects lint. The lint filter 45 constituting the collecting means is accommodated so as to be insertable / removable obliquely from the upper side of the inner lid 32.

  An air inlet 30 communicated with the upper end portion of the vertical portion of the ascending air duct 27 extends over the rear portion of the upper surface of the outer tub upper cover 28, incorporates a heater 29, and heats the circulating air for washing. The outer tub upper cover 28 is penetrated so as to blow into the washing / dehydrating tub 2 in the direction opposite to the rotation direction of the dehydrating tub 2 and is opened facing the opening of the washing / dehydrating tub 2. The heater 29 employs a PTC heater, and is installed obliquely so that the ventilation path is inclined in the vertical direction to reduce the height of the air inlet 30, thereby suppressing an increase in the height of the airframe.

  The outer tub upper cover 28 has a two-layer structure in which a lower resin molding member 28b and an upper metal plate (stainless steel plate) 28c are polymerized, and a part of the blowing port 30 and the upper folding member 44 as necessary. Is integrally molded with the resin molding member 28b. The metal plate 28c functions as a reinforcing and heat resistant member.

  The circulation fan 26 includes a centrifugal impeller 26 a, a drive motor 26 b that rotates the centrifugal impeller 26 a, a suction port casing 26 c that surrounds the centrifugal impeller 26 a, and a blowout casing 26 d. By attaching, it arrange | positions so that it may be located in the back side along with the said drive device 6 in the space formed in the lower side of the outer tank 5 in the outer frame 1. FIG. The suction port casing 26 c has a drain discharge port 26 e and is connected to the lower end portion of the descending air duct 25. The outlet casing 26 d is connected to the lower end portion of the rising air duct duct 27.

  In the circulation fan 26 configured in this manner, the outer tub 5 is located above the centrifugal impeller 26a and the drive motor 26b, the drive device 6 is located in the front, and the casings 26c and 26d and the air ducts 25 and 27 are located in the rear. Therefore, the sound emission generated by the centrifugal impeller 26a and the drive motor 26b is blocked (suppressed) by these, so that the noise in the drying process is reduced.

  FIGS. 10 and 11 are views for explaining an integral molding method of the outer tub 5 and the ducts 23, 25, 27 described above. FIG. 10 shows the integrally molded outer tub 5 and the ducts 23. FIG. , 25 and 27 are perspective views showing the forming mold, and FIG. 11 is a back view showing the integrally formed outer tub 5 and the ducts 23, 25 and 27 together with the forming mold.

  The vertical parts of the outer tub 5 and the ducts 23, 25, 27 are integrally formed of synthetic resin. A molding die for molding the outer tub 5 includes a cylindrical inner mold 46b having a molding surface for molding the inner peripheral surface and the inner surface of the bottom of the outer tub 5, and a retractable core 45a for molding the suction port 5a. The outer peripheral surface of the outer tub 5 and the outer peripheral surfaces of the ducts 23, 25, 27 are divided into four in the circumferential direction, and the outer peripheral surface of the outer tub 5, the outer surface of the bottom of the outer tub 5, and the ducts 23, 25, 27. A tank bottom mold 47e that molds the lower end portion and three duct inner molds 48a, 48b, and 48c that mold the inner peripheral surfaces of the ducts 23, 25, and 27 are used.

  The injection molding machine assembles and disassembles (molds) the molding die by combining the tank inner mold 46b, the tank outer peripheral molds 47a to 47d, and the duct inner molds 48a to 48c with reference to the tank bottom mold 47e. The tank inner mold 46b is advanced and retracted in the vertical direction from above, the tank outer peripheral molds 47a to 47d are advanced and retracted in the horizontal direction from four directions, and the duct inner molds 48a to 48c are advanced and retracted in the vertical direction from above. Since the upper and lower ends of the ducts 25 and 27 are opened, the lower ends of the duct inner molds 48b and 48c are positioned by fitting them into the recesses 47e2 and 47e3 of the tank bottom mold 47e. The duct 23 has a structure in which the lower end portion is continuously formed integrally with the peripheral edge portion of the suction port 5a of the outer tub 5, so that a small mold presser hole 23a is formed in the bottom wall portion of the duct 23 so as to be formed in the duct 23. The protrusion 48a1 provided on the mold 48a is fitted into the recess 47e1 of the tank bottom mold 47 and positioned. The mold retainer hole 23a formed by the protrusion 48a1 is then sealed with a stopper or the like in a watertight state.

  The injection molding by the mold having such a configuration enables the outer tank 5 and the ducts 23, 25, 27 to be integrally molded by a relatively small-scale injection molding machine.

Next, high-concentration detergent liquid production / supply means will be described.
FIG. 12 is a longitudinal sectional side view showing the relationship between the detergent dissolution container 21 and the detergent stirring electric motor 39. This high-concentration detergent liquid production / supply means is installed in a state where the detergent dissolution container 21 and the detergent stirring electric motor 39 are horizontally aligned on the metal base plate 49.

  The stirring blade drive shaft 51 coupled to the detergent stirring blade 50 disposed at the bottom of the detergent dissolution container 21 penetrates the bottom wall portion 21a of the detergent dissolution container 21 and the metal base plate 49 in a vertical state, and the metal base plate 49 The timing belt driven pulley 52 is fitted into the lead-out portion. The detergent stirring motor 39 is attached to the metal base plate 49 so that the rotation output shaft 39a passes through the metal base plate 49 in a vertical state and is led out to the lower side of the metal base plate 49, and a timing belt is driven at the lead-out portion. The pulley 53 is fitted. Then, the driven pulley 52 and the driving pulley 53 are interlocked by a timing belt 54.

  The metal base plate 49 is provided with a bearing tube portion 49a for fitting the bearing 55 for supporting the agitating blade drive shaft 51 and projecting outward, and a concentric annular detergent dissolution container fitting convex portion 49b on the inner side. Project. On the bottom wall 21 a of the detergent dissolution container 21, the cylindrical part 21 b fitted on the outer periphery of the detergent dissolution container fitting convex part 49 b is erected inward so as to enter the concave part below the detergent stirring blade 50. The cylindrical portion 21b is fixed to the metal base plate 49 with a set screw 56 in a state where the cylindrical portion 21b is fitted and positioned on the outer periphery of the detergent dissolution container fitting convex portion 49b. The stirring blade drive shaft 51 supported by the bearing 55 passes through the tubular portion 21b and is led out to the inside of the detergent dissolution container 21, and the detergent stirring blade 51 is fitted into the lead-out portion. A shaft seal member 57 is accommodated between the inside of the cylindrical portion 21 b and the stirring blade drive shaft 51. The detergent stirring blade 50 has a cylindrical inner wall surface that surrounds the tubular portion 21b below the detergent stirring blade 50 by extending downward in the radial direction so as to face the outer periphery of the tubular portion 21b. A recess 50b constituting 50a is formed. A detergent seal member 58 fitted on the outer periphery of the cylindrical portion 21b is interposed between the cylindrical portion 21b and the cylindrical inner wall surface 50a.

  The metal base plate 49 is further provided with a fitting hole 49c for fitting the outer periphery of the bearing cylinder 39b of the detergent stirring electric motor 39, and the vibration isolating member 59 is fitted to the bearing cylinder 39b of the detergent stirring electric motor 39. The cylinder 39b is fitted and positioned in the fitting hole 49c, the vibration isolating member 70 is fitted on the bearing cylinder 39c on the opposite side of the detergent stirring electric motor 39, and the motor cover 71 is covered so as to surround the periphery thereof. By fixing the base plate 49 with a set screw 72, the detergent stirring motor 39 is attached so as to be held between the vibration isolating members 59 and 70.

  Thus, the structure which installs the detergent dissolution container 21 and the detergent stirring drive electric motor 39 side by side can reduce the height of the back panel box 17 and suppress an increase in the height of the machine body. Further, since the stirring blade driving shaft 51 and the rotation output shaft 39a of the detergent stirring motor 39 are accurately positioned by the bearing tube portion 49a and the fitting hole 49c formed on the metal base plate 49, the rotational driving force by the timing belt 54 is provided. The transmission is smooth and quiet operation is possible. Further, the concave portion 50b that forms the cylindrical inner wall surface 50a below the detergent stirring blade 50 so as to surround the cylindrical portion 21b of the detergent dissolution container 21 forms an air pocket partitioned by the detergent seal member 58. It functions to prevent the high-concentration detergent solution generated by dissolving the powder synthetic detergent from entering and damaging the shaft seal member 57 and the bearing 55.

  A further specific configuration of the detergent dissolution container 21 including the detergent charging container will be described with reference to FIGS. 13 is a perspective view of the detergent dissolution container, FIG. 14 is a front view thereof, FIG. 15 is a top view thereof, FIG. 16 is a left side view thereof, FIG. 17 is a right side view thereof, and a detergent dissolution container, a main water supply solenoid valve and auxiliary water supply. FIG. 19 to FIG. 22 are longitudinal sectional side views of a detergent dissolving container on which a detergent charging container is placed, and FIG. 23 is a diagram illustrating a detergent charging container opened with an outer lid. FIG. 24 is a perspective view of the top cover showing a state where the detergent charging container is pushed in. FIG.

  The detergent dissolution container 21 is a substantially rectangular container in which the upper part is opened and the detergent charging container 73 can be freely moved back and forth. The detergent dissolution chamber 21c in which the detergent stirring blade 50 is installed, and the finishing agent charging chamber 21d. And a washing water supply channel 21e and an overflow channel 21f connected to the washing water supply channel 21e.

  The detergent dissolution chamber 21c has a water receiving port 21g that receives water supplied from the auxiliary water supply electromagnetic valve 22, and a high-concentration detergent solution that is generated by dissolving the powdered synthetic detergent in the detergent dissolution water while stirring with the detergent stirring blade 50. The overflow edge 21h that overflows the overflow channel 21f when it is increased by dilution, the rib 21i that suppresses the rotation of the detergent-dissolving water (high-concentration detergent liquid) during stirring, and the diluted high-concentration detergent liquid dissolves in the detergent. A siphon water flow mechanism 21j that flows out from the bottom of the chamber 21c to the washing water supply passage 21e, a guide rail 21k that guides the advancement and retreat of the detergent charging container 73 described later, and a fixed gear 21m that rotates the bottom lid of the detergent charging container 73. Is provided.

  The volume of the detergent dissolution chamber 21c is set in the back panel box 17, and a small amount necessary for dissolving the powder synthetic detergent, for example, 200 to 300 cc of tap water, makes the detergent concentration of the washing water, for example. The size is set so as to be suitable for producing a density of 200 to 300 times.

  The finishing agent charging chamber 21d includes an overflow edge 21n connected to the overflow channel 21f, a siphon water supply mechanism 21p connected to the washing water supply channel 21e, and a water inlet 21q from the auxiliary water supply electromagnetic valve 22a. (Liquid) is increased by being diluted by receiving water from the water receiving port 21q, overflowing from the overflow edge 21n to the overflow channel 21f, and flowing out from the siphon water supply mechanism 21p to the washing water supply channel 21e.

  The washing water supply channel 21e includes a water receiving port 21r that receives water from the main water supply solenoid valve 20, a high-concentration detergent liquid that flows out from the overflow channel 21f and the siphon water supply mechanism 21j, and an overflow channel 21n and a siphon water supply mechanism 21p. The finishing agent flowing out from the outlet is joined to form a flow path that flows out from the outlet 21 s to the water inlet 19.

  The detergent charging container 73 is a box-shaped body having a flat quadrangular shape that advances and retreats along the guide rail 21k on the detergent dissolving container 21, and opens upward. The detergent charging part 73a, the finishing agent charging part 73b, and the handle part 73c. Is provided.

  The detergent charging unit 73 a includes a bottom plate 73 d that is positioned so as to advance and retreat above the detergent dissolution chamber 21 c of the detergent dissolution container 21 and that rotates so as to open and close the bottom of the back half region. The bottom plate 73d is rotatably supported by a support shaft provided with a gear 73e at the shaft end, and when pushed inward, the gear 73e engages with the gear 21m and is turned horizontally along the lower surface of the front half region. It turns until it reaches a state, fully opens the bottom of the back half area of the detergent charging part 73a, turns so that it hangs down in the process of pulling out toward the front side, and then the opening edge of the top cover 9 or the detergent dissolution container It is pushed by the edge of 21 and turns to close the bottom. However, the bottom plate 73d is a short plate that opens the back end portion of the detergent charging portion 73a to a position above the detergent dissolution chamber 21c even when the bottom plate 73d is rotated so as to close the bottom.

  The finishing agent charging part 73b is positioned so as to advance and retreat above the finishing agent charging chamber 21d of the detergent dissolution container 21, and opens the bottom located above the finishing agent charging chamber 21d in the pulled-out state.

  The handle portion 73c is located on the front side portion of the detergent charging container 73, and functions as a gripping portion that is exposed on the inner wall surface of the outer garment charging port 9a formed in the top cover 9 and that is advanced and retracted.

  The high-concentration detergent liquid production / supply means configured as described above grips the handle 73c and pulls out the detergent charging container 73 into the outer garment charging port 9a. In the drawn-out detergent charging container 73, the detergent charging part 73a has the front side portion opened upward into the outer clothing input port 9a, the bottom plate 73d is closed, and the back end portion is the detergent melting chamber 21c of the detergent melting container 21. It is opened above. Therefore, when a predetermined amount of the powdered synthetic detergent is put into the detergent throwing portion 73a, a part of it falls into the detergent dissolution chamber 21c from the opening at the back end portion, and a part remains on the bottom plate 73d. Further, when a finishing agent is charged into the finishing agent charging part 73d, the finishing agent flows down to the finishing agent charging chamber 21d.

  Thereafter, when the detergent charging container 73 is pushed in, the bottom plate 73d of the detergent charging part 73a hangs away from the edge of the detergent dissolving container 21, drops the remaining powdered synthetic detergent into the detergent dissolving chamber 21c, and further pushes it into the back. The gear 73e engages with the gear 21m and turns around along the lower surface of the front half region until it turns into a horizontal state.

  In this state, the auxiliary water supply electromagnetic valve 22 is opened to supply detergent-dissolved water in an amount (200 to 300 cc) to the detergent-dissolving chamber 21c so that it does not overflow from the overflow edge 21h and the siphon water-passage mechanism 21j does not pass (conduct). Then, the detergent stirring blade 50 is rotated by the detergent stirring electric motor 39 to dissolve the powdered synthetic detergent to generate a detergent solution having a high concentration (200 to 300 times the detergent concentration of the washing water).

  Thereafter, the auxiliary water supply electromagnetic valve 22 is opened to perform additional water supply to dilute and increase the amount, thereby overflowing the overflow edge 21h and starting the siphon water supply mechanism 21j to pass through (conducting) to start the washing water supply flow path. Pour into 21e. At the same time, by opening the main water supply solenoid valve 20 and supplying water, the detergent concentration (washing water) suitable for further diluting the high concentration detergent solution and immersing it in the laundry by supplying water to the washing water supply passage 21e. The detergent concentration is set to 5 to 30 times) and is poured from the outlet 21 s to the water inlet 19.

  Further, the subsequent washing water supply is performed while cleaning the detergent dissolution container 21 by opening the main water supply electromagnetic valve 20 and the auxiliary water supply electromagnetic valve 22 until the water level reaches a predetermined level.

  Since the washing / drying machine configured as described above is configured so that the water-cooled dehumidifying duct 23 and the air ducts 25 and 27 are formed integrally with the outer tub 5, it is possible to rationally form the circulation air duct. it can.

  Further, the water-cooled dehumidifying duct 23 is formed so as to be integrally continuous from the peripheral portion of the suction port 5a at the lower part of the outer tub 5 and open at the upper end upward, so that a water-tight structure can be easily formed. .

  Further, by arranging the circulation fan 26 in the space below the outer tub 5, an increase in the height of the washing / drying machine can be reduced.

  In addition, the water supply solenoid valves 20, 22, 22 a and the detergent dissolution container 21 are installed in the back panel box 17 of the top cover 9 attached to the upper end of the outer frame 1, and the circulation air inlet 30 and the lint collecting By installing the collecting filter 45 on the outer tub upper cover 28 attached to the upper end of the outer tub 5, the outer lid 31 is opened so that the yarn waste collecting filter 45 and the detergent charging container 73 are placed in the outer garment charging port. Since it can be operated from within 9a, it is possible to provide a laundry dryer that is easy to operate.

  Further, the water-cooled dehumidifying duct 23 and the air ducts 25 and 27 are formed on the rear side of the outer tub 5 by integral molding with the outer tub 5 so as to be covered with the rear lid 1a bulging outward of the outer frame 1. Since it comprises, the enlargement of the outer frame 1 can be suppressed.

  In addition, the outer tub 5 is supported by being suspended from the four corners of the upper end portion of the outer frame 1 by the anti-vibration support device 8, so that it can be supported in a balanced manner.

  Further, the detergent dissolution container 21 is formed in a small size (small volume) so as to dissolve at a higher concentration than the high concentration detergent liquid that descends and sinks on the laundry 38, and the generated high concentration detergent liquid is submerged. Since it is configured so as to fall on the laundry 38 while being diluted to an appropriate detergent concentration, the detergent can be dissolved well and installed in the back panel box 17 formed on the top cover 9. It becomes easy. Further, the siphon water passing mechanism 21j can discharge most of the detergent liquid in the detergent dissolving container 21.

  Moreover, since the detergent stirring electric motor 39 that rotationally drives the detergent stirring blade 50 for stirring the detergent is installed side by side with respect to the detergent dissolving container 21, the height can be lowered. Moreover, since the detergent dissolution container 21 and the detergent agitating motor 39 are positioned on the metal base plate 49, they can be driven quietly by accurate belt connection.

  Further, the bearing 55 and the shaft seal member 57 of the stirring blade drive shaft 51 that drives the detergent stirring blade 50 are formed below the cylindrical portion 21 b that is raised on the bottom wall 21 a of the detergent dissolution vessel 21 and the detergent stirring blade 50. The recessed portion 50b can form an air pocket to prevent the high-concentration detergent liquid from entering and reduce damage caused by the additive (particularly zeolite) contained in the powdered synthetic detergent.

  Further, since the detergent is placed on the detergent dissolution container 21 so as to be able to advance and retreat, and the detergent is placed through the detergent throwing container 73 drawn out to the clothes throwing port 9a, the detergent can be easily fed.

It is a schematic diagram which shows one Embodiment of the washing dryer which becomes this invention. It is a block diagram which shows the electric system of the washing / drying machine shown in FIG. It is a vertical side view which shows the concrete structure of the washing-drying machine which becomes this invention. It is a rear view which notches the rear side of the outer frame of the washing / drying machine shown in FIG. 3, and shows a circulation air path part. It is a bottom view which cuts and shows a part of washing-drying machine shown in FIG. It is a top view which removes the top cover of the washing-drying machine shown in FIG. 3, and shows an outer tub and a circulation air path part. It is a vertical side view of the yarn waste collection part in FIG. It is a top view which shows the relationship between the outer frame and outer tank of the washing / drying machine shown in FIG. It is an exploded view of the outer tub upper cover of the washing and drying machine shown in FIG. FIG. 4 is a perspective view showing an integrally formed outer tub and each duct of the washing / drying machine shown in FIG. 3 together with a forming mold. FIG. 4 is a rear view showing the outer tub and each duct integrally formed with the washing / drying machine shown in FIG. 3 together with a molding die. It is a vertical side view which shows the relationship between the detergent dissolution container of the washing dryer shown in FIG. 3, and a detergent stirring electric motor. It is a perspective view which shows further more concretely the detergent dissolution container shown in FIG. It is a front view of the detergent melt | dissolution container shown in FIG. It is a top view of the detergent dissolution container shown in FIG. It is a left view of the detergent dissolution container shown in FIG. It is a right view of the detergent dissolution container shown in FIG. It is a perspective view which opens the back panel and shows the top cover which mounted the detergent dissolution container of the washing / drying machine shown in FIG. 3, the main water supply electromagnetic valve, and the auxiliary water supply electromagnetic valve. It is a vertical side view of the state which pushed in the detergent charging container mounted in the detergent dissolution container of the washing-drying machine shown in FIG. It is a vertical side view of the state which pulled out the detergent input container mounted in the detergent dissolution container of the washing-drying machine shown in FIG. 3 slightly. It is a vertical side view of the state which further pulled out the detergent charging container mounted in the detergent dissolution container of the washing / drying machine shown in FIG. It is a vertical side view of the state which further pulled out the detergent charging container mounted in the detergent dissolution container of the washing / drying machine shown in FIG. It is a perspective view of the top cover which shows the state which opened the outer cover of the washing / drying machine shown in FIG. 3, and pulled out the detergent charging container. It is a perspective view of the top cover which shows the state which opened the outer cover of the washing-drying machine shown in FIG. 3, and pushed in the detergent charging container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Outer frame, 1a ... Back side cover, 1b ... Reinforcement member, 2 ... Washing and dehydration, 4 ... Stirring blade, 5 ... Outer tank, 5a ... Suction port, 6 ... Drive device, 8 ... Anti-vibration support device, 9 ... Top cover, 9a ... outer clothing input port, 17 ... back panel box, 19 ... water injection port, 20 ... main water supply solenoid valve, 21 ... detergent dissolving container, 21b ... cylindrical part, 21c ... detergent dissolving chamber, 21h ... overflow edge , 21j ... Siphon water flow mechanism, 22, 22a ... Auxiliary water supply solenoid valve, 23 ... Water cooling dehumidification duct, 24 ... Cooling sprinkler, 25 ... Down air duct, 26 ... Circulation fan, 27 ... Up air duct, 28 ... Outer tub upper cover, 28a ... inner clothing input port, 29 ... heater, 30 ... injection port, 31 ... outer lid, 32 ... inner lid, 39 ... detergent stirring motor, 40 ... humidity sensor, 41 ... first humidity sensor, 42 ... 2nd humidity sensor, 44 ... Upper folding part , 45 ... lint collecting filter, 49 ... metal base plate, 50 ... detergent stirring blade, 50b ... recess, 57 ... shaft seal member, 58 ... detergent seal member, 73 ... detergent introduction container, 73a ... detergent introduction part, 73d …Bottom plate.

Claims (8)

Including a washing and dewatering tank with a stirring blade at the bottom, opening the upper end, and providing an outer circulation air channel on the outside;
An outer frame of an upper end opening containing the outer tub,
It has an outer garment inlet that can be opened and closed by an outer lid at the center, a rear storage that houses a water supply solenoid valve and high-concentration detergent solution generation / supply means at the rear, and an upper end of the outer frame. An attached top cover;
An inner garment insertion port that can be opened and closed by an inner lid is provided at the center, the circulation air channel blowing means and the lint collecting means are installed at the rear, and are attached to the upper end of the outer tub. A washing / drying machine comprising a tank cover.   2. The washing / drying machine according to claim 1, wherein the high-concentration detergent liquid generating / supplying unit includes a detergent charging box that can be pulled out to the inside of the outer garment charging port.   2. The washing and drying machine according to claim 1, wherein the lint collecting means includes a lint collecting filter that can be pulled out to the upper side of the inner lid.   The washing / drying machine according to claim 3, wherein the lint collecting filter is provided so as to be pulled out obliquely upward.   2. The washing / drying machine according to claim 1, wherein the blowing means includes a heater for heating the circulating air.   6. The washing / drying machine according to claim 5, wherein the heater is installed obliquely so that the ventilation path is inclined in the vertical direction.   The washing / drying machine according to claim 1, wherein the washing water and the high-concentration detergent liquid are supplied to the washing and dewatering tank through a passage penetrating the rear part of the outer tank cover. An outer tub provided with a washing / dehydrating tub on the inside, and air in the outer tub was sucked out from a suction port provided in the lower portion of the outer tub, and the sucked air was provided facing the upper opening of the washing / dehydrating tub A circulation air passage that blows into the washing and dewatering tub from the blowing port, water cooling / dehumidifying means for water-cooling / dehumidifying the circulating air sucked from the outer tub to the circulation air passage, and heating means for heating the water-cooled / dehumidified circulation air. In the washing and drying machine
A circulation fan installed in the circulation air passage to generate circulation air is installed so as to be located below the outer tub,
The circulation air passage extends upward from the lower part of the outer tub to a position higher than the washing water level in the washing process, and descends at the upper end of the dehumidification air passage portion and extends downward to the suction port of the circulation fan. An air passage portion and a rising air passage portion extending upward from the outlet of the circulation fan to the air inlet are provided, and the dehumidifying air passage portion, the descending air passage portion, and the vertical portion of the ascending air passage portion are formed integrally with the outer tub. The upper end of the air duct of the dehumidifying air passage and the upper end of the air duct of the descending air passage are connected by an upper folding member, and the air duct of the ascending air duct is The upper end is connected to the inlet member,
A washing / drying machine, wherein a lint collecting means is installed in the upper folding member, and a heating means is installed in the blowing member.

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