TWI572759B - Washing machine - Google Patents

Description

washing machine

The present invention relates to a washing machine.

Generally, the drainage generated during the operation of the washing machine, the washing process, the dewatering process, and the like of the washing machine is discharged from the washing and dewatering tank to the sewer via a predetermined pipe (drain hose). In the past, it is known that a soft, low-elasticity thermoplastic resin is formed into a bellows shape to impart soft bending property (for example, see Patent Document 1).

According to such a drain hose, the piping in the washing machine is surrounded by the soft bendability, and the bending of the drain port connected to the sewer can be easily changed.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 5-23489

However, the conventional drain hose of the bellows shape has a spiral mountain portion forming a bellows on the outer side thereof, and has a spiral groove portion corresponding to the outer spiral portion on the inner side.

On the other hand, the drainage that flows through the drain hose contains dirt, cotton wool, and the like of the laundry. In addition, the dirt or the like of the laundry is gradually accumulated inside the drain hose, and becomes a film-like dirt containing detergent scale, fatty acid, bacteria, and the like.

However, the film-like dirt is not only difficult to remove due to stubborn adhesion to the inside of the drain hose, but also causes the malodor caused by the growth of the bacteria to be released into the washing machine.

Accordingly, an object of the present invention is to provide a washing machine that prevents the occurrence of malodor.

The washing machine of the present invention which solves the above-mentioned problems is characterized in that the inner surface of the hose is formed to be flat in the longitudinal direction, and the outer surface of the hose is formed in a continuous direction in which the uneven shape is continuous.

According to the present invention, a washing machine capable of preventing the occurrence of malodor can be provided.

1A‧‧‧Washing and Drying Machine

1B‧‧‧Washing and Drying Machine

8‧‧‧Washing and dewatering tank (inner tank)

8A‧‧‧Rotary drum

9‧‧‧ outer trough

9A‧‧‧ outer trough

10‧‧‧ drive

10A‧‧‧ drive unit

11‧‧‧Input device

12A‧‧‧Water supply unit

12C‧‧‧Water supply unit

13‧‧‧Lower connecting tube

14‧‧‧Drain valve

15‧‧‧Washing water drainage road

17‧‧‧Circulating pump

41‧‧‧ outside the hose

41a‧‧‧Spiral Mountain

41b‧‧‧Spiral Valley

42‧‧‧ Inside the hose

43‧‧‧2nd tubular member

44‧‧‧1st tubular member

50‧‧‧Waterway components

50A‧‧‧Waterway components

50B‧‧‧Waterway components

50a2‧‧‧Distribution

50b2‧‧‧Distribution

50b3‧‧‧Distribution

50b4‧‧‧Distribution

50c2‧‧‧Distribution

55‧‧‧Slot cleaning mechanism

H‧‧‧Drain hose

5‧‧‧Water hose connection

4‧‧‧Water supply hose connection

3‧‧‧ Cover

2a‧‧‧Top cover

7b‧‧‧ display

7a‧‧‧Operation switch

7‧‧‧Operator panel

2‧‧‧Shell

6‧‧‧Power switch

2b‧‧‧ openings

22‧‧‧heater

11a‧‧‧Input hose

18‧‧‧Washing water circulation waterway

16‧‧‧ Foreign object removal device

28‧‧‧Rotary detection device

10a‧‧‧Motor

10b‧‧‧Clutch mechanism

10c‧‧‧Rotary axis

29‧‧‧Motor current detection device

20‧‧‧Drying channel

21‧‧‧fan

9a1‧‧‧ recess

50b1‧‧‧ side side spout

50b‧‧‧ inside side

9a3‧‧‧ditch

9a2‧‧‧ bottom

9a‧‧‧Outer cover

9a4‧‧‧ditch

50c‧‧‧ outside side

9a5‧‧‧ Side wall

50a1‧‧‧ Side side spout

50s‧‧‧ Waterway

T‧‧‧ gap

8c‧‧‧balance ring

9s‧‧‧ inner circumference

11c‧‧‧Washing hose

8c1‧‧‧Top of the outer periphery

8s‧‧‧ outer perimeter

22A‧‧‧heater

20c‧‧‧Upper channel

201‧‧‧ Bellows

20m‧‧‧ blowing nozzle

20k‧‧‧Wind air passage

3A‧‧‧door fan

9h1‧‧‧ openings

8d‧‧‧ openings

8e‧‧‧balance ring

13a‧‧‧Snake tube

9i‧‧‧Drainage

8f‧‧‧ Lifts

20A‧‧‧Air supply passage

10h‧‧‧Metal flange

10g‧‧‧Rotary shaft

20b‧‧‧post channel

2A‧‧‧Shell

9j‧‧‧Export

20d‧‧‧ bellows

30‧‧‧Overflow flow hose

50A‧‧‧Waterway components

11c1‧‧‧ fork hose

11c2‧‧‧ fork hose

Fig. 1 is a perspective view showing the appearance of a washing machine (washing and drying machine) according to an embodiment of the present invention.

Fig. 2 is a schematic view showing the inside of a casing of the washing machine (washing and drying machine) of Fig. 1 .

Fig. 3 is an enlarged cross-sectional view showing a tank washing mechanism of the washing machine (washing and drying machine) of Fig. 1.

Fig. 4 is a schematic view showing a flow of a water flow during washing of a washing machine (washing and drying machine) of Fig. 1;

[ Fig. 5] (a) is a partial cross-sectional view of a drain hose used in a washing machine (washing and drying machine) according to an embodiment of the present invention, and (b) is a portion showing a modified example of the drain hose (a). Sectional view.

Fig. 6 is a schematic view showing the inside of a casing of a washing machine (washing and drying machine) according to another embodiment of the present invention.

Fig. 7 is a schematic view showing a tank washing mechanism of the washing machine (washing and drying machine) of Fig. 6.

[Formation for carrying out the invention]

Next, an embodiment of the present invention will be described in detail with reference to an appropriate drawing.

The washing machine according to the embodiment of the present invention is mainly characterized in that a drainage hose having a breeding effect of bacteria is used.

Hereinafter, after describing the overall configuration of the washing machine of the embodiment, Describe the drain hose. Further, in the present embodiment, a washing and drying machine capable of performing a washing and drying process will be described as an example of a washing machine.

Fig. 1 is a perspective view showing the appearance of a washing machine (washing and drying machine) according to an embodiment of the present invention. Fig. 2 is a schematic view showing the inside of a casing of the washing machine (washing and drying machine) of Fig. 1;

(laundry dryer)

As shown in Fig. 1, the washer-dryer 1A is a vertical type washing machine (longitudinal washer-dryer) in which the rotation axis of the washing and dewatering tank 8 (inner tank, see Fig. 2) is substantially perpendicular. An upper cover 2a is provided on the upper portion of the casing 2 of the washer-dryer 1A, and an outer cover 3 is provided on the upper cover 2a. The cover 3 is opened to the rear side by being bent in a mountain shape, and the opening 2b (see FIG. 2) is opened to form clothes and the like in the washing and dewatering tank 8 (see FIG. 2). Take out the laundry).

On the deep side (rear side) of the upper cover 2e, there are provided: a water supply hose connection port 4 from the tap water plug, and a water suction hose connection port 5 of the remaining hot water of the bath. A power switch 6 is provided on the front side of the upper cover 2a, and an operation panel 7 formed by the operation switch 7a and the display 7b is provided on the front side of the outer cover 3.

As shown in FIG. 2, the washing and drying machine 1A is provided in the casing 2 with a washing and dewatering tank 8, an outer tank 9, a driving device 10, and a lotion. The completion device 11, the water supply unit 12A, the drying passage 20, and the like.

The washing and dewatering tank 8 has a bottomed cylindrical shape and has A casing plate 8a formed of a stainless steel plate or the like. A plurality of through holes 8a1 (only a part of which is shown) for water and ventilation are formed in the casing plate 8a. The washing and dewatering tank 8 is provided with a rotating blade 8b on the inner bottom surface.

The outer groove 9 has a bottomed cylindrical shape and is wrapped on the coaxial side. The polyester/dewatering tank 8 is provided with an outer tank cover 9a at its upper portion. The user of the washer-dryer 1A can take out the laundry in the washing and dewatering tank 8 from the opening 2b by opening the lid member 9c of the outer lid 3 and the outer tank lid 9a.

The driving device 10 is disposed outside the bottom surface of the outer tank 9. central. The drive unit 10 includes a motor 10a and a clutch mechanism 10b. The rotary shaft 10c of the drive unit 10 penetrates the outer tub 9 and is coupled to the washing and dewatering tank 8 and the rotary vane 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 dehydrating tank 8 and the rotating blade 8b. The motor 10a includes a rotation detecting device 28 including a Hall element or a photointerrupter that detects the rotation thereof, and a motor current detecting device 29 that detects a current flowing to the motor 10a.

The input device 11 is provided on the front side of the upper cover 2a. wash The input of the agent and the completion agent is performed between the outer tank 9 and the washing and dewatering tank 8 via the supply hose 11a together with tap water which will be described later.

The water supply unit 12A is provided on the deep side of the upper cover 2a. The water supply The unit 12A is a tap water supply water to the input device 11 and a water-cooling dehumidifying mechanism (not shown) which will be described later in the future water supply hose connection port 4. In addition, the water supply unit 12A is a bath water that can supply the tap water from the water supply hose connection port 4 and the water suction hose connection port 5 (see FIG. 1) from the outer tank 9 via the water injection hose 11b. Water is injected into the outer tank 9 between the washing and dewatering tank 8. Further, the water supply unit 12A can inject the tap water from the water supply hose connection port 4 into the upper portion of the washing and dewatering tank 8 via the washing hose 11c.

The lower portion 9m provided on the bottom surface of the outer groove 9 is connected to the lower portion The tube 13 is connected. The lower communication pipe 13 is connected to the wash water drain passage 15 via the drain valve 14 .

Further, the lower communication pipe 13 and the washing water drain passage 15 are used as the drain hose H (see FIG. 5) which will be described in detail later.

Further, by closing the drain valve 14, the washing water and the washing water can be stored in the outer tank 9. Further, by opening the drain valve 14, the water in the outer tank 9 can be drained to the outside of the washing and drying machine 1A via the washing water drain path 15. Further, the washing water of the tank cleaning mechanism 55 (see FIG. 3) to be described later may be drained from the outer tank 9 to the lower communication pipe 13 and the washing water drainage path 15 via the lower portion 9m.

Further, the lower communication pipe 13 is provided via the casing 2 The lower foreign matter removing device 16 and the circulation pump 17 are connected to each other so as to communicate with the washing water circulation water passage 18 (partially omitted). Moreover, the washing water circulation water passage 18 is connected so as to communicate with a wire removing device (not shown) provided on the upper side than the washing and dewatering tank 8.

When the circulation pump 17 is driven, the water in the outer tank 9 passes through the lower part The 9m and lower communication tubes 13 flow into the foreign matter removing device 16 to remove foreign matter and flow into the suction port of the circulation pump 17. The water sent from the circulation pump 17 flows into the wire removing device via the washing water circulation water path 18 to remove the chips, and the water from which the chips (circulating water) is removed is spread from the upper portion to the washing and taking off. The inside of the sink 8 is injected.

The drying duct 20 is provided in the inside of the back side of the casing 2 in a longitudinal direction. The lower portion of the passage is connected to the rubber bellows 20a by the lower portion 9m of the outer groove 9. A water-cooling dehumidifying mechanism (not shown) is provided in the drying duct 20, and the water supply unit 12A supplies cooling water (tap water) to the water-cooling dehumidifying mechanism. The cooling water flows down to the wall surface of the drying duct 20 (a metal plate made of stainless steel or the like) and enters the lower portion 9m, and is discharged to the outside through the lower communication pipe 13 and the washing water drainage path 15.

The outlet of the drying passage 20 is connected to the suction port of the fan 21. The outlet of the fan 21 is connected to the heater 22. The outlet of the heater 22 is connected to the blowing nozzle 24 via the air blowing passage 23 and the rubber bellows tube 23a.

That is, when the fan 21 is driven, the air in the outer tank 9 passes through The lower portion 9 m flows into the drying passage 20. Then, the air after the cooling passage 20 is water-cooled and dehumidified is discharged from the fan 21, and then, after the heater 22 is heated, the high-temperature and low-humidity air is blown from the blowing nozzle 24 toward the washing and dehydrating tank 8.

In addition, although not shown, the lower communication tube 13 and the row are Between the water valves 14, a temperature sensor that detects the temperature of the washing water and the temperature of the air discharged from the washing water drain path 15 to the outside of the machine during the drying operation is provided.

The washing and dewatering tank 8 is provided with an end edge on the casing plate 8a. A balance ring (also referred to as a fluid balancer) 8c formed of synthetic resin or the like. The balance ring 8c is composed of a fluid having a large internal sealing ratio. When the eccentricity occurs due to the bias of the laundry during the rotation of the washing and dewatering tank 8, the eccentricity is removed by the movement of the fluid in the balance ring 8c, and the balance of the rotation is maintained.

The outer tank cover 9a has an input port of a substantially semicircular shape and is It is mounted on the upper end edge of the outer tank 9. Further, a cover member 9c that is closably mounted is provided at the input port. Further, although not shown, a connection port that connects the end of the washing water circulation water passage 18, a connection port that connects the bellows pipe 23a, and a groove for cleaning the groove to be described later are provided on the deep side (rear side) of the outer tank cover 9a. Wash the connection port of the hose 11c.

In the outer tank cover 9a, it constitutes a tank washing machine to be described next. The waterway member 50 of the structure 55 is fixed to the lower surface of the outer tank cover 9a via a plurality of screws. The waterway member 50 is formed in a substantially annular shape and is disposed to surround (circle) along the peripheral edge portion of the outer tank cover 9a.

Figure 3, which is next referred to, is an enlarged cross section of the tank cleaning mechanism. Figure. Fig. 4 is a schematic view showing the flow of water during washing of a washing machine (washing and drying machine) according to an embodiment of the present invention.

As shown in FIG. 3, the tank cleaning mechanism 55 is provided with the above-described waterway member 50, and constitutes a washing washing and dewatering tank 8 and an outer tank 9.

On the inner side surface 50b of the water passage member 50, the 24 side surface side water discharge ports 50b1 are formed at intervals in the circumferential direction (only one is shown). On the bottom surface of the water passage member 50, four bottom side water sprinkling ports 50a1 (only one shown) are formed at intervals in the circumferential direction.

The bottom side side water sprinkling opening 50a1 is opposed to the inner side The vertical direction penetrates the waterway member 50 in an inclined manner. Bottom side drain The 50a1 and the side surface side water discharge port 50b1 are not limited to the number of the embodiment, and may be appropriately increased or decreased according to the type and internal structure of the washer-dryer 1A.

The waterway member 50 is along the circumferential direction of the outer tank cover 9a as described above. It is formed and disposed in the concave portion 9a1 opened on the lower side.

The water passage member 50 in the present embodiment is a water passage 50s which is formed in a substantially circular shape by a synthetic resin or the like and has a concave shape in which the concave surface faces the outer groove cover 9a side.

Further, on the bottom surface 9a2 of the concave path 9a1, the two grooves 9a3 and 9a4 are formed at positions corresponding to the inner side surface 50b and the outer side surface 50c of the water passage member 50. A sealing 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 grooves 9a3 and 9a4 face each other with the inner side surface 50b and the outer side surface 50c facing each other. The member 50 is fixed in watertightness to the outer tank cover 9a. Moreover, at this time, the side surface side water discharge port 50b1 of the water passage member 50 opposes the side wall portion 9a5 of the recessed portion 9a1.

Thus, the waterway member 50 is attached to the outer tank cover 9a, in the present In the embodiment, the water passage member 50 is disposed at a position corresponding to the gap T between the washing and dewatering tank 8 (balance ring 8c) and the outer tub 9.

Moreover, as shown in FIG. 4, there is such a tank washing machine In the washing machine 1A of the structure 55, when the tap water is discharged from the side surface side water discharge port 50b1 of the waterway member 50, as indicated by the solid arrow mark, the recessed portion 9a1 formed in the outer tank cover 9a is touched (refer to FIG. 3). The bottom surface 9a2 then falls on the outer peripheral edge upper surface 8c1 of the balance ring 8c of the washing and dewatering tank 8. At this time, since the washing and dewatering tank 8 rotates at a high speed, it falls to the level. The tap water of the outer peripheral edge portion 8c1 of the balance ring 8c is scattered toward the inner peripheral surface 9s of the outer tub 9 by the centrifugal force at the time of rotation of the washing and dewatering tank 8. The tap water that has flown to the inner circumferential surface 9s of the outer tank 9 flows downward in the vertical direction on the inner circumferential surface 9s of the outer tank 9 by the action of gravity. In addition, the water discharge port 50b1 is formed in a plurality of sides on the side surface side of the water passage member 50, and is blown off by the centrifugal force. Therefore, in the upper portion of the outer tank 9, the tap water is sprayed to the entire inner peripheral surface 9s, and flows down to the lower side of the structure. Therefore, tap water is formed to flow from the upper portion of the inner circumferential surface of the outer tank 9 to the entire lower portion. Therefore, the entire dirt and garbage of the inner circumferential surface of the outer tank 9 are removed, and the adhesion of dirt and garbage can be suppressed.

Moreover, the tap water is diffused from the bottom side of the waterway member 50. When the water 50a1 is dispersed, it is sprayed to the outer peripheral surface 8s of the upper portion (balance ring 8c) of the washing and dewatering tank 8. The tap water sprayed to the outer peripheral surface 8s flows downward in the vertical direction on the outer peripheral surface 8s of the washing and dewatering tank 8 by the action of gravity. In addition, a part of the tap water which is dropped from the side surface water discharge port 50b1 to the outer peripheral edge upper surface 8c1 is also indicated by a thin broken line in FIG. 12, and flows downward by the action of gravity on the outer peripheral surface 8s of the washing and dewatering tank 8.

Thus, by the water discharge port from the side of the water passage member 50 In the upper part (outer peripheral edge portion) of the washing and dewatering tank 8, the tap water and the bottom surface side water-spraying port 50a1 are allowed to disperse water, and the dirt and garbage of the inner peripheral surface 9s of the outer tank 9 and the outer peripheral surface 8s of the washing and dewatering tank 8 can be suppressed. Attached.

In addition, it is self-supplied in the water supply When the water is accumulated in the bottom of the outer tank 9, the washing and dewatering tank 8 is rotated at a high speed. Therefore, dirt and garbage adhering to the bottom surface of the outside of the washing and dewatering tank 8 can be removed, and dirt and garbage can be suppressed. Attached.

In addition, as shown above, the dirt and garbage removed by the washing of the outer tank 9 and the washing and dewatering tank 8 are drained from the outer tank 9 to the lower communicating pipe 13 and the washing water draining passage 15 via the lower portion 9m.

(drain hose)

Next, the drain hose of the present embodiment will be described.

As described above, the drain hose of the present embodiment is used in the lower communication tube 13 (see FIG. 2) and the wash water drain passage 15 (see FIG. 2). In more detail, in Fig. 2, as shown in the form of a mesh (dot), in all the wash water drainage paths 15; and in the lower communication pipe 13 extending from the lower portion 9m to the drain valve 14, in addition to being arranged in It is desirable to use a drain hose in the portion of the lower communication pipe 13 near the portion of the drive device 10 that serves as the vibration source and the portion of the lower portion 9m where the vibration of the outer groove 9 is transmitted.

Fig. 5 (a) is a partial cross-sectional view showing a drain hose used in a washing machine (washing and drying machine) according to an embodiment of the present invention, and Fig. 5 (b) is a view showing a modification of the drain hose of Fig. 5 (a) Partial section view.

As shown in FIG. 5(a), the drain hose H has a straight tubular inner peripheral surface, and has a spiral shape on its outer peripheral surface that is formed to be rotatable around the central axis Ax of the drain hose H. Thereby, the drain hose H has its hose inner surface 42 formed flat in the longitudinal direction, and the hose outer surface 41 has a concavo-convex shape in the longitudinal direction.

Further, the height of the spiral mountain portion 41a constituting the uneven shape is equal to the depth of the spiral valley portion 41b, and the spiral mountain portion 41a and the spiral valley portion 41b The spaces are equally spaced in the long direction.

In the drain hose H of the present embodiment, the resin containing the antibacterial and antifungal agent is formed by extrusion molding.

Further, the method of forming the drain hose H is not limited to the extrusion molding method, and for example, another molding method such as RIM molding, injection molding, or RI may be used.

Examples of the antibacterial and antifungal agent include inorganic antibacterial agents such as silver, copper, and zinc zeolite, imidazole antibacterial agents, dihydroserazole antibacterial agents, and anionic polymers. The organic antibacterial agent such as a salt of the fourth-order ammonium salt may not be limited to these, and other known antibacterial and antifungal agents may be used.

Examples of the resin include soft vinyl chloride resin, polyethylene resin, ethylene-propylene copolymer rubber, fluororubber, silicone rubber, nitrile rubber, chloroprene rubber, natural rubber, butadiene rubber, and the like. Isoprene rubber, styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene copolymer, ethylene-vinyl acetate copolymer, acrylonitrile-butadiene The polymer, chloroprene, ethylene-propylene-diene terpolymer, and the like are not limited thereto, and other known soft low-elastic resins may be used, and soft and low-elasticity thermoplasticity may be suitably used. Resin.

The compounding ratio of the antibacterial fungicide and the resin in the resin composition containing the antibacterial and antifungal agent forming the drain hose H can be determined according to the antibacterial force (antifungal strength) of the antibacterial and antifungal agent, but usually The antibacterial and antifungal agent can be set in the range of 1 to 15% by mass, and the resin is set at 85 to 99. Within the range of mass %.

Moreover, the resin composition containing the antibacterial and antifungal agent can be It is required to be formulated, for example, an oxidation preventive agent, a filler, a reinforcing material, a foaming agent, an antifoaming agent, a thixotropic imparting agent, an antistatic agent, a molecular weight modifier, a polymer modifier, a flame retardant, a plasticizer, a pigment, Various additives such as dyes, colorants, and elastomers.

The drain hose H shown in Figure 5(a) is assumed to be In the case where the resin composition of one type is formed, the present invention may be composed of two or more types of resin compositions.

As shown in Fig. 5 (b), the drain hose H includes a first tubular member 44 that forms the inner surface 42 of the hose, and a hose outer surface 41 having a concave-convex shape formed on the circumferential surface of the first tubular member 44. The second tubular member 43.

The first tubular member 44 is a resin containing an antibacterial and antifungal agent The composition forms a cylindrical shape.

The second tubular member 43 has a spiral shape that is formed on the outer circumferential surface thereof so as to rotate around the central axis Ax of the first tubular member 44. Thereby, the drain hose H is formed such that the inner surface 42 of the hose is formed flat in the longitudinal direction, and the outer surface 41 of the hose is formed such that the concavo-convex shape is continuous in the longitudinal direction.

Further, the second tubular member 43 is formed of a resin composition (a resin composition not containing an antibacterial and antifungal agent) containing no antibacterial and antifungal agent.

Next, the operation and effect of the washer-dryer 1A according to the embodiment of the present invention will be described.

In the washing and drying machine 1A of the present embodiment, after the predetermined laundry, washing, and dewatering works are performed in the outer tub 9, the washing water (washing water) is discharged from the outer tub 9 and executed. After the tank washing process, when the washing water is discharged from the outer tank 9, the washing water is drained from the lower portion 9 m, the lower communicating pipe 13 and the washing water draining path 15 to the outside of the washing and drying machine 1A.

Moreover, the lower communication pipe 13 and the wash water drainage path 15 The above-described drain hose H is used (see Figs. 5(a) and (b)).

However, as described above, the washing water flowing through the drain hose H contains dirt, batt, and the like of the laundry. In the conventional washing machine (for example, see Patent Document 1), the dirt or the like of the laundry is gradually accumulated inside the drain hose, and is a film-like stain containing detergent scale, fatty acid, or bacteria. Such a film-like soil is released into the washing machine by the foul odor caused by the growth of the bacteria adhering to the inside of the drain hose.

On the other hand, the laundry dryer used in the present embodiment The lower communicating pipe 13 of the machine 1A and the drain hose H of the washing water draining passage 15 (see FIGS. 5(a) and (b)) are different from those of the conventional inner peripheral surface (spiral groove) having a bellows shape, and are soft. The inner surface 42 of the tube is flat toward the long direction.

As a result, in the drain hose H of the present embodiment, unlike the conventional one, it is possible to prevent the washing water or the like from remaining on the inner surface 42 of the hose.

Therefore, according to the washer-dryer 1A of the present embodiment, it is difficult to form the inner surface 42 of the hose including film-like dirt such as detergent scale, fatty acid, or bacteria. Moreover, even if the dirt adheres to the inner surface 42 of the hose, the inner surface 42 of the hose Since the formation is flat, the dirt can be easily removed by the flow of water such as washing water at the time of drainage.

Therefore, according to the washing and drying machine 1A of 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 occurrence of malodor due to the growth of the bacteria.

Moreover, according to the washer-dryer 1A of this embodiment, Since the drain hose H is formed of a resin composition containing an antibacterial and antifungal agent, it is possible to prevent the growth of bacteria on the inner surface 42 of the hose. Therefore, the washer-dryer 1A according to the present embodiment can more reliably prevent the occurrence of malodor.

Moreover, in the washing and drying machine 1A of this embodiment, in the tank washing When the tank washing water (washing water) provided by the cleaning mechanism 55 contains more dirt or the like than the washing water, for example, the washing machine 1A can prevent the washing water from staying soft in the softness of the washing machine 1A. In the case of the inner surface 42 of the tube, since the inner surface 42 of the hose exhibits antibacterial and antifungal properties, it is possible to surely prevent the occurrence of malodor.

Moreover, according to the washer-dryer 1A of this embodiment, Since the outer surface 41 of the hose forms a continuous concavo-convex shape in the longitudinal direction, the strength is improved even if it is flexible. Thereby, the breakage of the drain hose H due to bending can be prevented.

Moreover, according to the drain hose H shown in Fig. 5(b), When the thickness of the tubular member 44 is thin, the blending ratio of the antibacterial and antifungal agent in the resin composition is increased, and the migration property of the antibacterial and antifungal agent to the inner surface 42 of the hose can be improved and the antibacterial and antifungal properties can be obtained. improve. Further, the second tubular member 43 reinforces the thin first tubular member 44 to allow the drain hose The overall strength of H is raised. Further, since the second tubular member 43 contains the antibacterial and antifungal agent, the original characteristics (strength, etc.) of the resin to be formed can be sufficiently exhibited.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment, and can be implemented in various forms.

In the above-described embodiment, an example in which the drain hose H of the present embodiment is applied to the lower communication pipe 13 and the wash water drain passage 15 of the vertical type washing machine (longitudinal washer-dryer) will be described. The drum type washer-dryer is suitable for the drain hose H.

Next, FIG. 6 referred to is another embodiment of the present invention. A schematic view of the inside of the casing of the washing machine (washing and drying machine) of the embodiment. Fig. 7 is a schematic view showing a water passage member of a washing machine (washing and drying machine) according to another embodiment of the present invention.

As shown in Fig. 6, the washer-dryer 1B is a drum type washer-dryer, and includes a housing 2A, a rotary drum (inner groove) 8A in a broken line type, an outer tub 9A, a drive unit 10A, and the like. Further, as shown in Fig. 7, the washer-dryer 1B further includes water passage members 50A and 50B constituting the tank cleaning mechanism 55, a water supply unit 12C that supplies water to the water passage members 50A and 50B, and a furcation hose. 11c1, 11c2.

As shown in Fig. 6, the rotary drum 8A (inside) The groove is provided in the casing 2A, and functions as a cylindrical washing and dewatering tank that is rotatably supported. The rotary drum 8A has an opening portion 8d for taking out the clothing on the front side (front side) end surface, and Further, there are a plurality of through holes (not shown) for water passage and ventilation on the peripheral wall and the bottom wall (deep side). A balance ring 8e integral with the rotary drum 8A is provided at the edge of the opening 8d. Further, in the inner peripheral wall of the rotary drum 8A, a plurality of elevators 8f extending in the deep side direction (axial direction) are provided, and when the rotary drum 8A is rotated during washing and drying, the clothes and the like are repeatedly formed by the elevator 8f and the centrifugal force The action of lifting the perimeter wall and dropping it by gravity. Further, the center of rotation of the rotary drum 8A is inclined such that the opening portion 8b side becomes higher.

The outer groove 9A is a coaxially wrapped rotary drum 8A, and The cylindrical shape of the front opening is formed, and the inside is formed to function as a washing chamber and a drying chamber. An outer tank cover 9h made of synthetic resin is provided in the opening in the front surface of the outer tank 9A, and water can be stored in the outer tank 9A. In the center of the front side (front side) of the outer tank cover 9h, an opening portion 9h1 for taking out clothes and the like is formed. The opening 9h1 and the opening provided in the reinforcing member (not shown) are connected by a gasket made of rubber. This spacer serves to maintain the watertightness of the outer tub 9A and the door leaf 3A. Thereby, it is possible to prevent leakage of water during washing, washing, and dehydration. A drain port 9i is provided on the bottom surface of the outer tank 9A.

The drain port 9i is connected via a rubber bellows tube 13a. Lower communication tube 13. The lower communication pipe 13 is connected to the wash water drain passage 15 via the drain valve 14 .

Further, the lower communication pipe 13 and the washing water drain passage 15 are used as the drain hose H (see FIG. 5) which will be described in detail later.

Further, by closing the drain valve 14, it is formed that the washing water and the washing water can be stored in the outer tank 9A. Also, the outer tank can be opened by opening the drain valve 14. The water (laundry water, washing water) in the 9A is drained to the outside of the washing and drying machine 1B via the washing water drainage path 15. Further, the washing water of the tank cleaning mechanism 55 (see FIG. 7), which will be described later, can be drained from the outer tank 9A to the lower communication pipe 13 and the washing water drainage path 15 via the drain port 9i.

Moreover, the lower communication pipe 13 is flushed via the circulation pump 17 The water circulation water path 18 (partially omitted) is connected in such a manner as to communicate. Moreover, the wash water circulation water passage 18 is connected so as to communicate with a wire removing device (not shown) provided on the upper side than the rotary drum 8A.

When the circulation pump 17 is driven, the water in the outer tank 9A is drained The port 9i and the lower communication pipe 13 flow into the suction port of the circulation pump 17. The water sent from the circulation pump 17 flows into the wire removal device via the washing water circulation water passage 18 to remove the chips, and the water from which the chips (circulating water) is removed is injected from the upper portion into the rotary drum 8A. .

The driving device 10A is a person who rotationally drives the rotating drum 8A, and It is provided in the center of the back of the outer tank 9A. Further, the rotating shaft 10g of the driving device 10A penetrates the outer groove 9A, and is coupled to the metal flange 10h provided on the back surface of the rotary drum 8A.

Moreover, the washing and drying machine 1B is provided inside the casing 2A. The wind passes to (send the wind road) 20A. The air supply passage 20A has a rear passage 20b extending in the vertical direction (vertical direction) on the back side of the outer tank 9A, and an upper passage 20c extending the upper surface side of the outer tank 9A from the rear toward the front. The lower portion of the rear passage 20b is connected to the outlet 9j provided at the lower portion of the rear surface of the outer tub 9A via a bellows 20d having a soft structure. Further, a water-cooling dehumidifying mechanism (not shown) is provided in the rear passage 20A.

Further, an overflow passage hose 30 that is connected to the downstream of the drain valve 20b to be connected to the wash water drain passage 15 is connected to the lower portion of the blow passage 20b. The upstream end of the overflow flow path hose 30 is connected to be located above the bellows 20d.

Provided on the downstream side of the upper passage 20c as a blower The fan 21A of the stage and the blower fan unit of the heater 22A as a heating means. When the blower fan unit is actuated, air is sucked into the blower fan unit from the upper passage 20c by the suction force of the fan 21A, and the sucked air is heated by the heater 22A to be discharged from the blower fan unit (not shown). It is discharged. Further, when the air passes through the rear passage 20b, it is cooled by a water-cooling/dehumidifying mechanism (not shown) to perform dehumidification. The heated air discharged from the blower fan unit is formed into the rotary drum 8A via the warm air passage 20k, the bellows 201, and the blow nozzle 20m.

As shown in Figure 7, the outer tank cover 9h is installed to be used as a tank wash. The tap water used for the net is used to disperse the water path member 50A. The water passage member 50A has a substantially arcuate shape (arc shape), and is extended in the circumferential direction on the upper portion of the back surface of the outer tank cover 9h, in other words, in the circumferential direction of the rotary drum 8A. Further, the water passage member 50A is formed to have a length of about one quarter of the circumference, and is disposed to extend from the center to the right and left by the same length.

The waterway member 50A is formed in a plurality of directions along the circumferential direction. Since the inner peripheral surface of the outer tank cover 9h is separated by the water-spraying port 50b2, the tap water which is scattered from the respective water-spraying ports 50b2 flows downward in the vertical direction on the inner peripheral surface of the outer tank cover 9h by gravity. Further, since the water spout 50c2 formed at both end portions of the water passage member 50A is directed toward the inner peripheral surface of the outer tank cover 9h Since the water is dispersed, the water can be dispersed even on the inner peripheral surfaces of the left and right end portions of the outer tank cover 9h. Therefore, the tap water can flow entirely on the inner peripheral surface of the outer tank cover 9h.

Moreover, since the waterway member 50A is formed with a rotating roller Since the water discharge port 50a2 of the water is discharged from the water discharge port 50a2 by the centrifugal force of the rotary drum 8A, the water can be scattered toward the inner circumferential surface of the outer tank 9A by the centrifugal force of the rotary drum 8A.

Mounted on the bottom surface (surface on the body side) of the outer tank 9A The tap water for the tank washing is used to disperse the water passage member 50B. The water passage member 50A has a substantially arcuate shape (arc shape), and is extended in the circumferential direction on the upper portion of the bottom surface (deep side surface) of the outer groove 9A, in other words, in the circumferential direction of the rotary drum 8A. Further, the water passage member 50A is formed to have a length of about one quarter of the circumference, and is disposed to extend from the center to the right and left by the same length.

The waterway member 50B is formed toward the rotary drum 8A Since the bottom plate is separated by the water-spraying ports 50b3 and 50b3, the tap water which is scattered from the water-spraying port 50b3 is formed by the rotation of the rotary drum 8A, and the entire outer periphery of the bottom plate of the rotary drum 8A is dispersed.

Further, the water passage member 50B is formed to face the outer groove 9A. Since the bottom surface is a plurality of water-spraying ports 50b4, the tap water which is scattered from the water-spraying port 50b4 toward the bottom surface flows downward from the upper portion toward the lower portion by the gravity acting on the bottom surface of the outer tank 9A. Therefore, tap water can flow in the entire bottom surface of the outer tank 9A.

In such a washer-dryer 1B (see Fig. 6), the foregoing Drain hose H (refer to Figures 5(a) and (b)) is used as described above The lower communicating pipe 13 (see Fig. 6) and the washing water draining passage 15 (see Fig. 6). In more detail, the dots (points) as indicated in Fig. 6 are in the entire wash water drain 15 and the overflow flow path hose 30; and the lower communication tube 13 (in the bellows 13a and the drain valve 14 and the circulation pump) The lower communication pipe 13) extending between 17 uses a drain hose H.

Although the above-described washing and drying machine has a drying function, the present invention may be a vertical type washing machine or a drum type washing machine which does not have a drying function.

Further, in the above-described embodiment, as shown in FIGS. 5(a) and 5(b), the drain hose H having the spiral portion 41a will be described, but the present invention may be formed on the outer surface 41 of the hose (see FIG. 5). (a) and (b)) have a configuration in which the uneven shape of the annular mountain portion is formed in a plurality of rows in the longitudinal direction.

H‧‧‧Drain hose

41b‧‧‧Spiral Valley

41a‧‧‧Spiral Mountain

41‧‧‧ outside the hose

Ax‧‧‧ central axis

43‧‧‧2nd tubular member

44‧‧‧1st tubular member

42‧‧‧ Inside the hose

Claims (2)

A washing machine characterized by comprising: a casing; an outer tank supported in the casing to store washing water therein; and an inner tank rotatably supported in the outer tank to accommodate laundry; a device for rotationally driving the inner tank; and a lower communication pipe connected to the wash water drain passage via a drain valve, wherein the lower communication pipe is located at a drop portion that transmits the vibration of the outer groove or is provided The bottom surface of the outer tank has a bellows tube formed in a bellows shape, and a portion other than the bellows tube is formed to have a flat inner surface of the hose in the longitudinal direction, and the outer surface of the hose is continuous in the longitudinal direction. a drain hose including: a first tubular member that forms an inner surface of the hose; and a second tubular member that forms an outer surface of the hose having a concavo-convex shape on a circumferential surface of the first tubular member; The first tubular member is formed of a resin composition containing an antibacterial and antifungal agent, and the second tubular member has an outer peripheral surface that is coaxial with a central axis of the first tubular member. Spiral shape, the second tubular member in turn is formed, it is formed of a resin composition containing no antibacterial antifungal agent to form an anti-antifungal agent antibacterial resin composition of the drain hose in The blending ratio of the fungicide-proof resin is such that the antibacterial and antifungal agent is in the range of 1 to 15% by mass, and the resin is set in the range of 85 to 99% by mass. The washing machine according to claim 1, wherein the washing machine is provided with a tank washing mechanism, and the tank water for the tank washing mechanism is discharged through the drain hose.