JP2013056144A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine that prevents the generation of bad odor.SOLUTION: The washing machine is provided with a drain hose H that has an inner face 42 of the hose, which is formed to be flat in a lengthwise direction, and an outer face 41 of the hose, which has uneven shapes formed so as to range in a lengthwise direction. Accordingly, the drain hose H prevents washing water and the like from accumulating at the inner face 42 of the hose, which is a feature different from a conventional hose, and thereby prevents film-like dirt including detergent scum, fatty acid and various bacteria and the like from being easily formed at the inner face 42 of the hose. In addition, if dirt is deposited on the inner face 42 of the hose, the dirt is easily removed by water flow of washing water and the like at the time of drainage. Thereby, the washing machine prevents the generation of bad odor due to breeding of various bacteria.

Description

  The present invention relates to a washing machine.

In general, wastewater generated during operation of a washing process, a rinsing process, a dehydration process, and the like of a washing machine is discharged from a washing tub / dehydration tub to a sewer through a predetermined pipe (drainage hose). Conventionally, as a drainage hose of a washing machine, a soft and low-elasticity thermoplastic resin formed into a bellows shape and imparted with flexible flexibility is known (for example, see Patent Document 1).
According to such a drainage hose, the flexible bending property makes it easy to turn the pipe in the washing machine and to bend it when connected to the drainage port of the sewer.

Japanese Patent Laid-Open No. 5-23489

By the way, the conventional drainage hose having the bellows shape has a spiral crest portion that forms a bellows on the outside thereof, and has a spiral groove portion on the inside so as to correspond to the outer spiral crest portion.
On the other hand, the drainage flowing through the drainage hose contains dirt, lint, and the like of the laundry. And this dirt etc. of the laundry gradually accumulates inside the drainage hose, and becomes a film-like dirt containing detergent residue, fatty acids, germs and the like.
However, this film-like dirt not only firmly adheres to the inside of the drainage hose and is difficult to remove, but also causes unpleasant odor due to breeding of germs into the washing machine.

  Then, the subject of this invention is providing the washing machine which prevents generation | occurrence | production of a bad smell.

  The washing machine of the present invention that has solved the above-mentioned problems is characterized by comprising a drainage hose formed such that the inner surface of the hose is formed flat in the length direction and the outer surface of the hose is formed in a concavo-convex shape in the length direction.

  ADVANTAGE OF THE INVENTION According to this invention, the washing machine which prevents generation | occurrence | production of malodor can be provided.

1 is an external perspective view of a washing machine (washing / drying machine) according to an embodiment of the present invention. It is the schematic which shows the inside of the housing | casing in the washing machine (washing / drying machine) of FIG. It is an expanded sectional view of the tank washing | cleaning mechanism in the washing machine (washing / drying machine) of FIG. It is a schematic diagram which shows the flow of the water at the time of the tank washing | cleaning of the washing machine (washing dryer) of FIG. (A) is a fragmentary sectional view of the drainage hose used with the washing machine (washing dryer) concerning the embodiment of the present invention, (b) is the fragmentary sectional view showing the modification of the drainage hose of (a). is there. It is the schematic which shows the inside of the housing | casing in the washing machine (washing / drying machine) which concerns on other embodiment of this invention. It is a schematic diagram of the tank washing | cleaning mechanism in the washing machine (washing / drying machine) of FIG.

Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
The washing machine according to the embodiment of the present invention is mainly characterized by including a drain hose that suppresses the propagation of germs.
Below, after demonstrating the whole structure of the washing machine which concerns on this embodiment, a drainage hose is demonstrated. In the present embodiment, a washing / drying machine capable of performing steps from washing to drying will be described as an example of the washing machine.
FIG. 1 is an external perspective view of a washing machine (washing / drying machine) according to an embodiment of the present invention. FIG. 2 is a schematic view showing the inside of the housing in the washing machine (washing / drying machine) of FIG. 1.

(Washing and drying machine)
As shown in FIG. 1, the washing / drying machine 1A is a vertical washing machine (vertical washing / drying machine) in which the rotation axis of the washing and dewatering tank 8 (inner tank, see FIG. 2) is substantially vertical. An upper surface cover 2a is provided on the upper portion of the casing 2 of the washing / drying machine 1A, and an outer lid 3 is provided on the upper surface cover 2a. The outer lid 3 is bent in a mountain shape and opened to the rear side to open the opening 2b (see FIG. 2) so that clothes and the like (laundry) can be taken in and out of the washing and dewatering tub 8 (see FIG. 2). It has become.

  On the back side (rear side) of the top cover 2a, a water supply hose connection port 4 from a water tap and a water absorption hose connection port 5 for remaining hot water in a bath are provided. A power switch 6 is provided on the front side of the top cover 2a, and an operation panel 7 including an operation switch 7a and a display 7b is provided on the front side of the outer lid 3.

  As shown in FIG. 2, a washing / drying machine 1A includes a washing / dehydrating tub 8, an outer tub 9, a driving device 10, a detergent / finishing agent charging device 11, a water supply unit 12A, a drying duct 20 and the like in a housing 2. It has.

  The washing and dewatering tub 8 has a bottomed cylindrical shape and includes a body plate 8a formed of a stainless steel plate or the like. A large number of through holes 8a1 (only part of which are shown) are formed in the body plate 8a for water flow and air flow. The washing and dewatering tub 8 includes a rotary blade 8b on the inner bottom surface.

  The outer tub 9 has a bottomed cylindrical shape, includes a washing and dewatering tub 8 coaxially, and includes an outer tub cover 9a on the upper portion thereof. The user of the laundry dryer 1A can put the laundry in and out of the washing and dewatering tub 8 through the opening 2b by opening the outer lid 3 and the lid member 9c of the outer tub cover 9a.

  The driving device 10 is disposed at the center outside the bottom surface of the outer tub 9. The driving device 10 includes a motor 10a and a clutch mechanism 10b, and a rotating shaft 10c of the driving device 10 is configured to pass through the outer tub 9 and to be coupled to the washing / dehydrating tub 8 and the rotary blade 8b. . The clutch mechanism 10b has a function of transmitting the rotational power of the motor 10a to at least one of the washing and dewatering tub 8 and the rotary blade 8b. The motor 10a includes a rotation detection device 28 configured by a Hall element or a photo interrupter that detects the rotation, and a motor current detection device 29 that detects a current flowing through the motor 10a.

  The charging device 11 is provided on the front side of the top cover 2a. The detergent and the finishing agent are charged between the outer tub 9 and the washing and dehydrating tub 8 together with tap water described later by the charging hose 11a.

  The water supply unit 12A is provided on the back side of the top cover 2a. This water supply unit 12A supplies tap water from the water supply hose connection port 4 to the charging device 11 and a water-cooled dehumidification mechanism (not shown) described later. In addition, the water supply unit 12A supplies the tap water from the water supply hose connection port 4 and the bath water from the water absorption hose connection port 5 (see FIG. 1) to the outer tub 9 and the washing / dehydration tub 8 via the water injection hose 11b. Water can be poured into the outer tub 9 from between. Further, the water supply unit 12A can inject tap water from the water supply hose connection port 4 into the upper portion of the washing and dewatering tank 8 through the cleaning hose 11c.

A drop portion 9 m provided on the bottom surface of the outer tub 9 communicates with the lower communication pipe 13. The lower communication pipe 13 is connected so as to communicate with the washing water drainage path 15 via the drain valve 14.
A drainage hose H (see FIG. 5), which will be described in detail later, is used for the lower communication pipe 13 and the washing water drainage channel 15.
Incidentally, by closing the drain valve 14, it becomes possible to store wash water and rinsing water in the outer tub 9. Further, by opening the drain valve 14, the water (washing water, rinsing water) in the outer tub 9 can be drained outside the washing / drying machine 1 </ b> A through the washing water drainage channel 15. Further, the wash water of the tank cleaning mechanism 55 (see FIG. 3) described later can be drained from the outer tank 9 to the lower communication pipe 13 and the washing water drainage path 15 through the drop portion 9m.

  Further, the lower communication pipe 13 is connected so as to communicate with a washing water circulation channel 18 (partially omitted) via a foreign matter removing device 16 and a circulation pump 17 installed at the lower part of the housing 2. The washing water circulation channel 18 is connected to communicate with a lint removal device (not shown) provided above the washing and dewatering tub 8.

  When the circulation pump 17 is driven, the water in the outer tub 9 flows into the foreign matter removing device 16 through the drop portion 9m and the lower communication pipe 13, the foreign matter is removed, and flows into the suction port of the circulation pump 17. The water sent from the circulation pump 17 flows into the waste thread removing device via the washing water circulation channel 18 to remove the waste thread, and the water from which the waste thread has been removed (circulated water) is placed in the washing and dewatering tank 8. Water is sprayed to spray from.

  The drying duct 20 is installed vertically inside the back surface of the housing 2, and the lower part of the duct is connected to the drop portion 9m of the outer tub 9 by a rubber bellows tube 20a. A water-cooled dehumidifying mechanism (not shown) is built in the drying duct 20, and the water supply unit 12A supplies cooling water (tap water) to the water-cooled dehumidifying mechanism. The cooling water flows down the wall surface of the drying duct 20 (a metal plate made of stainless steel or the like), enters the drop portion 9m, passes through the lower communication pipe 13 and the washing water drainage path 15, and is discharged outside the apparatus.

  The outlet of the drying duct 20 is connected to the inlet of the fan 21, and the outlet of the fan 21 is connected to the heater 22. The outlet of the heater 22 is connected to the blowout nozzle 24 via a blower duct 23 and a rubber bellows tube 23a.

  That is, when the fan 21 is driven, the air in the outer tub 9 flows into the drying duct 20 through the drop portion 9m. Then, the air that has been dehumidified by water cooling in the drying duct 20 is discharged from the fan 21 and then heated by the heater 22, and then blown out from the blowing nozzle 24 into the washing and dewatering tub 8 as high-temperature and low-humidity air. The

  Although not shown, between the lower communication pipe 13 and the drain valve 14, a temperature for detecting the temperature of the washing water and the temperature of the air discharged from the washing water drainage path 15 during the drying operation. A sensor is provided.

  The washing and dewatering tub 8 includes a balance ring (also referred to as a fluid balancer) 8c formed of synthetic resin or the like at the upper end edge of the body plate 8a. The balance ring 8c is configured by enclosing a fluid having a large specific gravity therein, and when an eccentricity occurs due to the bias of the laundry when the washing and dewatering tub 8 rotates, the fluid moves in the balance ring 8c. This cancels the eccentricity and maintains the balance of rotation.

  The outer tub cover 9 a has a substantially semicircular inlet and is attached to the upper edge of the outer tub 9. Note that a lid member 9c attached to be openable and closable is provided at the insertion port. Moreover, although not shown in figure, in the back side (rear side) of the outer tank cover 9a, the connection port to which the edge part of the washing water circulation channel 18 is connected, the connection port to which the bellows tube 23a is connected, the tank washing | cleaning mentioned later A connection port to which the cleaning hose 11c is connected is provided.

  In the outer tank cover 9a, a water channel member 50 constituting a tank cleaning mechanism 55 described below is fixed to the lower surface of the outer tank cover 9a via a plurality of screws. The water channel member 50 is formed in a substantially annular shape, and is arranged to circulate (turn around) along the peripheral edge of the outer tub cover 9a.

Next, FIG. 3 referred to is an enlarged cross-sectional view of the tank cleaning mechanism. FIG. 4 is a schematic diagram showing the flow of water during washing of the washing machine (washing and drying machine) according to the embodiment of the present invention.
As shown in FIG. 3, the tank cleaning mechanism 55 includes the water channel member 50 and is configured to clean the washing / dehydrating tank 8 and the outer tank 9.
On the inner side surface 50b of the water channel member 50, 24 side surface side water spray ports 50b1 are formed at intervals in the circumferential direction (only one is shown). On the bottom surface of the water channel member 50, four bottom surface side water spray ports 50a1 (only one is shown) are formed at intervals in the circumferential direction.

  The bottom surface side water spout 50a1 penetrates the water channel member 50 so as to be inclined with respect to the vertical direction so as to face inward. The number of the bottom-side watering ports 50a1 and the side-side watering ports 50b1 is not limited to the number of the present embodiment, and can be appropriately increased or decreased according to the type of the washing / drying machine 1A and the internal structure.

As described above, the water channel member 50 is disposed in the recess 9a1 that is formed along the circumferential direction of the outer tub cover 9a and that is open on the lower side.
The water channel member 50 in the present embodiment is formed in a substantially circular shape with a synthetic resin or the like, and has a concave water channel 50 s formed so that the concave surface faces the outer tank cover 9 a side.
In addition, two grooves 9a3 and 9a4 are formed on the bottom surface 9a2 of the recess 9a1 at positions corresponding to the inner side surface 50b and the outer side surface 50c of the water channel member 50. A seal member (not shown) is injected into the grooves 9a3 and 9a4, and the mounting portions 51 and 52 are screwed to the outer tank cover 9a in a state where the inner surface 50b and the outer surface 50c are attached to the grooves 9a3 and 9a4. By doing so, the water channel member 50 is watertightly fixed with respect to the outer tank cover 9a. Further, at this time, the side surface water spray port 50b1 of the water channel member 50 faces the side wall 9a5 of the recess 9a1.

  By attaching the water channel member 50 to the outer tub cover 9a in this way, in this embodiment, the water channel member 50 corresponds to the gap T between the washing and dewatering tub 8 (balance ring 8c) and the outer tub 9. Placed in position.

  As shown in FIG. 4, in the washer / dryer 1 </ b> A provided with such a tank cleaning mechanism 55, when tap water is discharged from the side surface side sprinkling port 50 b 1 of the water channel member 50, as shown by a solid line arrow. Then, it hits the bottom surface 9a2 of the recess 9a1 (see FIG. 3) formed in the outer tub cover 9a and falls on the outer peripheral edge upper surface 8c1 of the balance ring 8c of the washing and dewatering tub 8. At this time, since the washing / dehydrating tub 8 is rotating at a high speed, the tap water that has fallen on the outer peripheral edge upper surface 8c1 of the balance ring 8c is caused by the centrifugal force generated when the washing / dehydrating tub 8 is rotated. It is blown off toward the inner peripheral surface 9s. The tap water blown to the inner peripheral surface 9s of the outer tub 9 flows down the inner peripheral surface 9s of the outer tub 9 downward in the vertical direction by the action of gravity. Further, since a plurality of side surface water sprinkling ports 50b1 are formed in the water channel member 50 and blown off by centrifugal force, tap water is sprayed on the entire inner peripheral surface 9s in the upper part of the outer tub 9, and then flows downward. Therefore, tap water flows through the entire inner peripheral surface of the outer tub 9 from the upper part to the lower part. Accordingly, the entire dirt and dust on the inner peripheral surface of the outer tub 9 are removed, and adhesion of dirt and dust can be suppressed.

  Further, when tap water is sprinkled from the bottom-side water sprinkling port 50a1 of the water channel member 50, it is sprayed to the outer peripheral surface 8s of the upper part (balance ring 8c) of the washing and dewatering tub 8. The tap water sprayed on the outer peripheral surface 8s flows down the outer peripheral surface 8s of the washing and dewatering tub 8 vertically downward by the action of gravity. Note that a part of tap water dripped from the side-side water spout 50b1 to the outer peripheral edge upper surface 8c1 also moves downward on the outer peripheral surface 8s of the washing and dewatering tub 8 by the action of gravity, as shown by a thin broken line in FIG. And flow down.

  In this way, by sprinkling tap water from the side surface watering port 50b1 and the bottom surface side watering port 50a1 of the water channel member 50 to the upper part (outer peripheral edge portion) of the washing and dewatering tank 8, the inner peripheral surface 9s of the outer tank 9 is obtained. And the adhesion of dirt and dust to the outer peripheral surface 8s of the washing and dewatering tub 8 can be suppressed.

  Moreover, in this tank washing | cleaning process, since the washing and dewatering tank 8 is rotated at high speed in the state which the supplied tap water was collected on the bottom of the outer tank 9, the dirt adhering to the bottom face outside the washing and dewatering tank 8 It is possible to remove dust and dirt, and to prevent dirt and dust from adhering.

  Incidentally, the dirt and dust removed by washing the outer tub 9 and the washing / dehydrating tub 8 are drained from the outer tub 9 to the lower communication pipe 13 and the washing water drainage path 15 through the drop portion 9m as described above. Will be.

(Drain hose)
Next, the drainage hose in the present embodiment will be described.
As described above, the drainage hose in the present embodiment is used for the lower communication pipe 13 (see FIG. 2) and the washing water drainage path 15 (see FIG. 2). More specifically, as shown in FIG. 2, among the washing water drainage channels 15 and the lower communication pipe 13 extending from the drop-in part 9 m to the drainage valve 14, the vibration source It is desirable that the drainage hose be used for the lower communication pipe 13 portion excluding the portion disposed near the driving device 10 and the portion near the drop portion 9m through which the vibration of the outer tub 9 is transmitted.

Fig.5 (a) is a fragmentary sectional view of the drainage hose used with the washing machine (washing dryer) which concerns on embodiment of this invention, FIG.5 (b) is a modification of the drainage hose of Fig.5 (a). FIG.
As shown in FIG. 5 (a), the drainage hose H has a straight tubular inner peripheral surface, and has a spiral shape formed around the central axis Ax of the drainage hose H on its outer peripheral surface. ing. As a result, the drainage hose H is formed such that the hose inner surface 42 is formed flat in the length direction and the hose outer surface 41 is formed in a concavo-convex shape in the length direction.
The height of the spiral crest 41a and the depth of the spiral trough 41b constituting the concavo-convex shape are equal, and the distance between the spiral crest 41a and the spiral trough 41b is equal in the length direction.

Such a drainage hose H in this embodiment is obtained by molding a resin containing an antibacterial and antifungal agent using an extrusion molding method.
In addition, as a shaping | molding method of the drainage hose H, it is not limited to an extrusion molding method, For example, other shaping | molding methods, such as RIM shaping | molding, casting, and RI, can also be used.

  Examples of antibacterial and antifungal agents include organic antibacterial agents such as inorganic antibacterial agents such as silver, copper and zinc zeolite, imidazole antibacterial agents, thiazoline antibacterial agents, and salts of anionic polymers and quaternary ammonium salts. However, it is not limited thereto, and other known antibacterial and antifungal agents can also be used.

  Examples of the resin include soft vinyl chloride resin, polyethylene resin, ethylene-propylene copolymer rubber, fluorine rubber, silicon rubber, nitrile rubber, neoprene rubber, natural rubber, butadiene rubber, isoprene rubber, styrene-butadiene-styrene block copolymer And styrene-isoprene-styrene block co-aggregates, ethylene-vinyl acetate co-aggregates, acrylonitrile-butadiene copolymers, chloroprene, ethylene-propylene-diene terpolymers, and the like. Instead, other known soft low-elasticity resins, among them, soft low-elasticity thermoplastic resins can also be suitably used.

  The blending ratio of the antibacterial / antifungal agent and the resin in the resin composition containing the antibacterial / antifungal agent that forms the drainage hose H can be determined according to the antibacterial activity (antifungal power) of the antibacterial / antifungal agent. Usually, the antibacterial and antifungal agent can be in the range of 1 to 15% by mass, and the resin can be in the range of 85 to 99% by mass.

  In addition, the antibacterial and antifungal agent-containing resin composition includes, for example, an antioxidant, a filler, a reinforcing material, a foaming agent, an antifoaming agent, a thixotropic agent, an antistatic agent, and a molecular weight adjusting agent. Various additives such as a polymer modifier, a flame retardant, a plasticizer, a pigment, a dye, a colorant, and an elastomer can be blended.

The drainage hose H shown in FIG. 5A is assumed to be formed from one type of resin composition, but the present invention can also be configured from two or more types of resin compositions. .
As shown in FIG. 5 (b), the drainage hose H forms a first tubular member 44 that forms the hose inner surface 42, and a hose outer surface 41 having an uneven shape on the peripheral surface of the first tubular member 44. And a second tubular member 43.

The first tubular member 44 is formed in a cylindrical shape with a resin composition containing an antibacterial and antifungal agent.
The second tubular member 43 has a spiral shape formed on the outer peripheral surface thereof so as to pivot about the same axis as the central axis Ax of the first tubular member 44. As a result, the drainage hose H is formed such that the hose inner surface 42 is formed flat in the length direction and the hose outer surface 41 is formed in a concavo-convex shape in the length direction.
The second tubular member 43 is formed of a resin composition that does not contain an antibacterial and antifungal agent (a resin composition that does not contain an antibacterial and antifungal agent).

Next, the effect of the washing / drying machine 1A according to the embodiment of the present invention will be described.
In the washing / drying machine 1 </ b> A according to this embodiment, after each of the predetermined washing process, the rinsing process, and the dehydrating process is performed in the outer tub 9, the washing water (rinsing water) is discharged from the outer tub 9. When washing water is discharged from the outer tub 9 after the tank washing process is performed, the washing water is washed through the drop portion 9m, the lower communication pipe 13 and the washing water drainage channel 15. Drained out of the dryer 1A.

And the said drainage hose H (refer FIG. 5 (a) and (b)) is used for the lower communication pipe 13 and the washing water drainage channel 15. FIG.
By the way, as described above, the washing water flowing through the drainage hose H contains dirt, lint, and the like of the laundry. And in the conventional washing machine (for example, refer patent document 1), the stain | pollution | contamination etc. of the laundry are gradually accumulate | stored inside a drainage hose, and become a film-form stain | pollution | contamination containing detergent residue, fatty acid, various germs, etc. Such film-like dirt firmly adheres to the inside of the drainage hose and emits a bad odor due to propagation of germs into the washing machine.

On the other hand, the drainage hose H (see FIGS. 5A and 5B) used in the lower communication pipe 13 and the washing water drainage channel 15 of the washing / drying machine 1A according to the present embodiment has a conventional bellows shape. Unlike the one having the inner peripheral surface (spiral groove), the hose inner surface 42 is flat in the length direction.
Thereby, the drainage hose H in this embodiment can prevent wash water etc. from staying on the inner surface 42 of the hose unlike the conventional one.
Therefore, according to the washing / drying machine 1A according to the present embodiment, film-like dirt containing detergent residue, fatty acids, germs, and the like is not easily formed on the inner surface 42 of the hose. Moreover, even if dirt adheres to the hose inner surface 42, the hose inner surface 42 is flat, so that the dirt is easily removed by a water flow such as washing water during drainage.
Therefore, according to the washing / drying machine 1A according to the present embodiment, unlike the conventional one, it is difficult to accumulate dirt on the inner surface 42 of the hose, and it is possible to prevent the generation of malodor due to the propagation of various bacteria.

  Moreover, according to the washing / drying machine 1A according to the present embodiment, since the drainage hose H is formed of the resin composition containing the antibacterial and antifungal agent, it is possible to prevent the propagation of germs on the inner surface 42 of the hose. Therefore, according to 1 A of washing / drying machines which concern on this embodiment, generation | occurrence | production of a malodor can be prevented more reliably.

  Further, in the washing / drying machine 1A according to the present embodiment, even when the tank washing water (washing water) by the tank washing mechanism 55 includes more dirt or the like than the washing drainage, this washing / drying machine 1A. According to the present invention, unlike the conventional one, it is possible to prevent the washing water from staying on the hose inner surface 42, and the hose inner surface 42 exhibits antibacterial and antifungal properties, thus reliably preventing the generation of malodors. be able to.

  Moreover, according to the washing / drying machine 1A according to the present embodiment, the hose outer surface 41 is formed so that the concavo-convex shape is continuous in the length direction, so that the strength is improved while being flexible. Thereby, collapse of drainage hose H by bending can be prevented.

  Moreover, according to the drainage hose H shown in FIG.5 (b), while reducing the thickness of the 1st tubular member 44 and increasing the compounding ratio of the antibacterial / antifungal agent in the resin composition, the inner surface 42 of the hose. It is possible to improve the antibacterial and antifungal performance by improving the migration of the antibacterial and antifungal agent. The second tubular member 43 can improve the overall strength of the drainage hose H by reinforcing the thin first tubular member 44. And since the 2nd tubular member 43 does not contain an antibacterial and antifungal agent, it can fully exhibit the characteristic (strength etc.) of the resin constituted.

As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It can implement with a various form.
In the embodiment, the example in which the drainage hose H according to the present embodiment is applied to the lower communication pipe 13 and the washing water drainage path 15 of the vertical washing machine (vertical washing dryer) has been described, but the present invention is a drum type. The drainage hose H can also be applied to the washing / drying machine.

Next, FIG. 6 referred to is a schematic view showing the inside of a casing of a washing machine (washing / drying machine) according to another embodiment of the present invention. FIG. 7 is a schematic view showing a water channel member of a washing machine (washing / drying machine) according to another embodiment of the present invention.
As shown in FIG. 6, the washing / drying machine 1B is a drum-type washing / drying machine, and includes a housing 2A, a rotating drum (inner tub) 8A indicated by a broken line, an outer tub 9A, a driving device 10A, and the like. Further, as shown in FIG. 7, the washing and drying machine 1B further includes water channel members 50A and 50B constituting the tank cleaning mechanism 55, a water supply unit 12C for supplying water to the water channel members 50A and 50B, and branch hoses 11c1 and 11c2. ing.

  As shown in FIG. 6, the rotating drum 8A (inner tub) indicated by a broken line is provided in the housing 2A and functions as a cylindrical washing / dehydrating tub that is rotatably supported. The rotary drum 8A has an opening 8d for putting clothes in and out on the front side (front side) end face, and a plurality of through holes (not shown) for water flow and ventilation on the peripheral wall and the bottom wall (back side). )have. A balance ring 8e integrated with the rotary drum 8A is provided at the edge of the opening 8d. Further, the inner peripheral wall of the rotating drum 8A is provided with a plurality of lifters 8f extending in the depth direction (axial direction). When the rotating drum 8A rotates during washing and drying, clothes and the like are peripherally walled by the lifter 8f and centrifugal force. It lifts along and repeats the movement of falling by gravity. The rotation center of the rotary drum 8A is inclined so that the opening 8d side is higher.

  The outer tub 9A encloses the rotary drum 8A coaxially and is formed in a cylindrical shape with an open front surface, and the inside functions as a washing room and a drying room. A synthetic resin-made outer tank cover 9h is provided in the opening on the front surface of the outer tank 9A, and water can be stored in the outer tank 9A. At the center of the front side (front side) of the outer tub cover 9h, an opening 9h1 for taking in and out clothes and the like is formed. The opening 9h1 and the opening provided in the reinforcing member (not shown) are connected by rubber packing. This packing plays the role of maintaining the watertightness of the outer tub 9A and the door 3A. This prevents water leakage during washing, rinsing and dehydration. A drain port 9i is provided on the bottom surface of the outer tub 9A.

A lower communication pipe 13 is connected to the drain port 9i via a rubber bellows pipe 13a. The lower communication pipe 13 is connected so as to communicate with the washing water drainage path 15 via the drain valve 14.
A drainage hose H (see FIG. 5), which will be described in detail later, is used for the lower communication pipe 13 and the washing water drainage channel 15.
By the way, by closing the drain valve 14, it becomes possible to store wash water and rinsing water in the outer tub 9 </ b> A. Further, by opening the drain valve 14, the water (wash water, rinse water) in the outer tub 9 </ b> A can be drained out of the washing / drying machine 1 </ b> B through the washing water drain passage 15. Further, the wash water of the tank cleaning mechanism 55 (see FIG. 7) described later can be drained from the outer tank 9A to the lower communication pipe 13 and the washing water drainage path 15 through the drain port 9i.

  Further, the lower communication pipe 13 is connected so as to communicate with the washing water circulation channel 18 (partially omitted) via the circulation pump 17. The washing water circulation channel 18 is connected so as to communicate with a lint removing device (not shown) provided above the rotating drum 8A.

  When the circulation pump 17 is driven, the water in the outer tub 9 </ b> A flows into the suction port of the circulation pump 17 through the drain port 9 i and the lower communication pipe 13. The water sent from the circulation pump 17 flows into the waste thread removing device via the washing water circulation channel 18 to remove the waste thread, and the water from which the waste thread has been removed (circulated water) is sprayed into the rotary drum 8A from above. Water is poured to make.

  The driving device 10A rotates the rotary drum 8A and is provided at the center of the back surface of the outer tub 9A. The rotating shaft 10g of the driving device 10A passes through the outer tub 9A and is coupled to a metal flange 10h provided on the back surface of the rotating drum 8A.

Moreover, the washing / drying machine 1B includes a blower duct (fan passage) 20A inside the housing 2A. The blower duct 20A has a rear duct 20b that extends in the vertical direction (vertical direction) on the back side of the outer tub 9A, and an upper duct 20c that extends from the rear to the front on the upper surface side of the outer tub 9A. In the lower part of the rear duct 20b, an outlet 9j provided in the lower back part of the outer tub 9A is connected substantially horizontally via a bellows 20d having a flexible structure. A water-cooled dehumidifying mechanism (not shown) is provided in the rear duct 20b.
Moreover, the overflow hose 30 connected so that it may merge with the wash water drainage path 15 in the downstream of the drain valve 14 is connected to the lower part of the ventilation duct 20A. The upstream end of the overflow hose 30 is connected to be positioned above the bellows 20d.

  On the downstream side of the upper duct 20c, a blower fan unit including a fan 21A as a blower and a heater 22A as a heater is provided. When the blower fan unit is activated, air is taken into the blower fan unit from the upper duct 20c by the suction force of the fan 21A, and the taken-in air is heated by passing through the heater 22A. It is discharged from (not shown). Further, when air passes through the rear duct 20b, it is cooled by a water-cooled dehumidifying mechanism (not shown) to perform dehumidification. The heated air discharged from the blower fan unit is supplied into the rotary drum 8A through the hot air duct 20k, the bellows 20l, and the blowing nozzle 20m.

  As shown in FIG. 7, a water channel member 50A for sprinkling tap water for tank cleaning is attached to the outer tank cover 9h. The water channel member 50A has a substantially arcuate shape (arc shape) and is disposed along the circumferential direction on the inner surface of the outer tub cover 9h, in other words, along the circumferential direction of the rotating drum 8A. Further, the water channel member 50A is formed with a length of about a quarter of the circumference, and is disposed so as to extend from the center to the left and right with the same length.

  Since the water channel member 50A has a plurality of water spouts 50b2 sprayed toward the inner peripheral surface of the outer tank cover 9h along the circumferential direction, the tap water sprinkled from each water spout 50b2 Due to the action, the inner peripheral surface of the outer tank cover 9h flows downward in the vertical direction. Further, since water is sprayed from the water spouts 50c2 formed at both ends of the water channel member 50A toward the inner peripheral surface of the outer tub cover 9h, the inner peripheral surfaces of both left and right ends of the outer tub cover 9h are also sprayed. Can spray water. Therefore, it becomes possible to flow tap water over the entire inner peripheral surface of the outer tub cover 9h.

  Further, since the water channel member 50A is formed with a water spout 50a2 sprinkled toward the upper front end of the rotary drum 8A, the tap water sprinkled from the water spout 50a2 is removed by the centrifugal force of the rotary drum 8A. It can be scattered toward the inner peripheral surface of the tank 9A.

  A water channel member 50B for sprinkling tap water for tank cleaning is attached to the bottom surface (back surface) of the outer tank 9A. The water channel member 50B has a substantially arcuate shape (arc shape), and is disposed along the circumferential direction on the upper surface of the bottom surface (back surface) of the outer tub 9A, in other words, along the circumferential direction of the rotary drum 8A. Yes. Further, the water channel member 50B is formed with a length of about a quarter of the circumference, and is disposed so as to extend from the center to the left and right with the same length.

  The water channel member 50B is formed with water spouts 50b3 and 50b3 that sprinkle toward the bottom plate of the rotary drum 8A, so that the tap water sprinkled from the water spout 50b3 is rotated by the rotation of the rotary drum 8A. Water is sprayed over the entire outer periphery of the bottom plate of the drum 8A.

  Moreover, since the water channel member 50B is formed with a plurality of water spouts 50b4 that sprinkle toward the bottom surface of the outer tub 9A, tap water sprinkled from the water spout ports 50b4 to the bottom surface is caused by the action of gravity. The bottom surface of 9A flows down from the top to the bottom. Therefore, it becomes possible to flow tap water over the entire bottom surface of the outer tub 9A.

  In such a washing and drying machine 1B (see FIG. 6), the drain hose H (see FIGS. 5A and 5B) is connected to the lower communication pipe 13 (see FIG. 6) and the washing water as described above. It is used for the drainage channel 15 (see FIG. 6). More specifically, as shown in FIG. 6, all the washing water drainage channels 15 and the overflow hoses 30, the lower communication pipe 13 (the bellows pipe 13 a, the drainage valve 14, and the circulation pump 17) The drain hose H is preferably used for the lower communication pipe 13) extending between the two.

Although the above-mentioned washing and drying machine has been described as having a drying function, the present invention may be a vertical washing machine or a drum washing machine that does not have a drying function.
Moreover, in the said embodiment, as shown to Fig.5 (a) and (b), although the drainage hose H which has the spiral peak part 41a was demonstrated, this invention is the hose outer surface 41 (FIG.5 (a) and ( In b), a configuration having an uneven shape in which a plurality of annular ridges are formed side by side in the length direction may be employed.

1A Washer / Dryer 1B Washer / Dryer 8 Washing / Dehydration Tank (Inner Layer)
8A Rotating drum 9 Outer tank 9A Outer tank 10 Drive device 10A Drive device 11 Input device 12A Water supply unit 12C Water supply unit 13 Lower communication pipe 14 Drain valve 15 Washing water drainage channel 17 Circulation pump 41 Hose outer surface 41a Spiral mountain portion 41b Spiral valley portion 42 Hose inner surface 43 Second tubular member 44 First tubular member 50 Water channel member 50A Water channel member 50B Water channel member 50a2 Water spray port 50b2 Water spray port 50b3 Water spray port 50b4 Water spray port 50c2 Water spray port 55 Tank cleaning mechanism H Drain hose

Claims (5)

  A washing machine comprising: a drainage hose having an inner surface of a hose that is formed flat in the length direction and an outer surface of the hose that is formed so that concave and convex shapes are continuous in the length direction. The washing machine according to claim 1,
2. The washing machine according to claim 1, wherein the uneven shape of the outer surface of the hose is formed in a spiral shape formed so as to turn around the central axis of the drainage hose. The washing machine according to claim 1,
The washing machine, wherein the drainage hose is formed of a resin containing an antibacterial and antifungal agent. The washing machine according to claim 3,
The drain hose includes a first tubular member that forms the inner surface of the hose;
A second tubular member that forms the outer surface of the hose having the concavo-convex shape on the peripheral surface of the first tubular member;
The antibacterial and antifungal agent is contained only in the first tubular member. In the washing machine according to any one of claims 1 to 4,
A washing machine comprising a tank washing mechanism, wherein washing water by the tank washing mechanism is discharged through the drain hose.

Images