JP2021108841A - Drum type washing machine - Google Patents

Abstract

To solve the attaching of laundry to a rotary drum, and to improve usability of a user.SOLUTION: A drum type washing machine includes: a first air shooting port 201 which is integrated with a water tub 3 wall surface in a water-tight manner, and capable of delivering an airflow toward a rotary drum 4 in the direction substantially right angle direction to a rotation shaft; first air pressure adjustment means 202 capable of delivering the airflow at a predetermined air pressure to the first air shooting port 201; and control means 22 for controlling a motor 6, a water supply valve, the first air pressure adjustment means 202 and the like, and for sequentially controlling a series of steps such as washing, rinsing, dewatering and the like. In the first air shooting port 201, the shooting port faces a predetermined one row direction of through-holes 56. When the dewatering step finishes, the control means 22 drives the first air pressure adjustment means 202 while rotating the rotary drum 4 at low speed, and allows it to shoot the airflow from the first air shooting port 201.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to a drum type washing machine.

Patent Document 1 discloses a drum-type washing machine that releases the sticking of laundry to the inner surface of a rotating drum in the final process of dehydration.

In this drum-type washing machine, in the dehydration process, the rotation speed, time, rotation direction and period of the rotating drum are controlled at each step, the laundry is gradually dehydrated, and then forward / reverse rotation is applied to the rotating drum. , The laundry can be peeled off from the rotating drum.

Japanese Unexamined Patent Publication No. 10-2019

However, in the conventional configuration, by rotating the rotating drum left and right after dehydration, the laundry is caused by a change in the weight of the laundry located above the rotating drum, vibration generated when the rotating drum itself is rotated left and right, and the like. However, if the weight of the laundry is light or the amount of laundry is not large, the sticking force due to the centrifugal force due to high-speed rotation will prevail and it will be difficult to release the sticking.

If you try to remove the laundry from the rotating drum in that state, the laundry remains stuck to the inner surface of the rotating drum, so it takes a lot of force to remove the laundry, or the laundry looks like There was a problem that the laundry was forgotten to be taken out from the rotating drum without being recognized, and the laundry was naturally dried with wrinkles formed during dehydration.

Alternatively, when the laundry is continuously operated from washing to drying, only the surface of the laundry dries while remaining stuck, and it is judged that the drying is completed, and the laundry is actually in contact with the drum. On the side, there was a problem that it became undried and had many wrinkles.

The present disclosure solves the above-mentioned conventional problems, releases the sticking of the laundry to the inner surface of the rotating drum, improves the usability of the user, and improves the finish by drying when the laundry is dried after the washing. It is an object of the present invention to provide a drum type washing machine which can be operated. Another object of the present disclosure is to provide a drum-type washing machine capable of promoting the dissolution of detergent and improving the cleaning performance.

The drum-type washing machine in the present disclosure includes a rotating drum having a rotating shaft whose axial center direction is inclined downward from the front side to the back side, and the rotating drum which is elastically supported in the washing machine body so as to be swingable. A water tank rotatably containing the above, a plurality of through holes formed in a plurality of rows on the wall surface of the rotating drum in a direction substantially perpendicular to the rotation axis, a motor for rotating the rotating drum, and a water supply valve for supplying water to the water tank. , A first air launch port that is watertightly integrated with the wall surface of the water tank and can send an air flow toward the rotating drum in a direction substantially perpendicular to the rotation axis, and a predetermined air pressure at the first air launch port. A first air pressure adjusting means capable of sending an air flow, and a control means for controlling the motor, water supply valve, first air pressure adjusting means, etc., and sequentially controlling a series of processes such as washing, rinsing, and dehydration. The first air launch port is oriented in a predetermined one-row direction of the through hole, and the control means is said to rotate the rotating drum at a low speed at the end of the dehydration stroke. The first air pressure adjusting means is driven to launch an air flow from the first air launch port.

Further, the drum type washing machine in the present disclosure is elastically supported in a washing machine main body with a rotating drum having a rotating shaft whose axial center direction is inclined downward from the front side to the back side. A water tank that rotatably contains a rotating drum, a plurality of through holes formed in a plurality of rows on the wall surface of the rotating drum in a direction substantially perpendicular to the rotation axis, a motor that rotates the rotating drum, and a water supply that supplies water to the water tank. A first water flow launch port that is watertightly integrated with the valve and the water tank and can send a water flow toward the rotating drum, and a first water flow launch port that can send a water flow at a predetermined air pressure to the first water flow launch port. The control means includes a water pressure adjusting means and a control means for controlling the motor, the water supply valve, the first water pressure adjusting means, etc., and sequentially controlling a series of steps such as washing, rinsing, and dehydration. In the above, after the detergent and water are put into the water tank, the first water pressure adjusting means is driven to launch the water flow from the first water flow launch port.

Further, the drum type washing machine in the present disclosure is elastically supported in a washing machine main body with a rotating drum having a rotating shaft whose axial center direction is inclined downward from the front side to the back side. A water tank that rotatably contains a rotating drum, a plurality of through holes formed in a plurality of rows on the wall surface of the rotating drum in a direction substantially perpendicular to the rotation axis, a motor that rotates the rotating drum, and a water supply that supplies water to the water tank. A fourth air launch port that is watertightly integrated with the valve on the back side of the wall surface of the water tank and can send an air flow toward the rotating drum in a direction substantially perpendicular to the rotation axis, and the fourth air launch port. The fourth air pressure adjusting means capable of sending an air flow at a predetermined air pressure, the motor, the water supply valve, the fourth air pressure adjusting means, etc. are controlled, and a series of processes such as washing, rinsing, and dehydration are sequentially performed. The fourth air launch port comprises a control means for controlling, and the fourth air launch port has a bubble filter capable of discharging nanometer-level bubbles on its surface, and the control means is used in a washing process and / or a rinsing process. The fourth air pressure adjusting means is driven to launch an air flow from the fourth air launch port.

The drum-type washing machine in the present disclosure can release the sticking of the laundry to the inner surface of the rotating drum, improve the usability of the user, and improve the finish by drying.

Further, the drum type washing machine in the present disclosure can promote the dissolution of the detergent and improve the washing performance.

Further, the drum-type washing machine in the present disclosure promotes foaming of the detergent in the washing process and quickly removes dirt adhering to the gaps between the fibers, and in the rinsing process, quickly removes the detergent remaining in the gaps between the fibers. be able to.

Longitudinal sectional view of the drum type washing machine according to the first embodiment of the present invention. Block diagram and schematic diagram of each means of the drum type washing machine Explanatory drawing of the state of sticking laundry to each means of the drum type washing machine and the rotating drum Explanatory drawing of how to release the sticking of laundry of the same drum type washing machine Explanatory drawing of the process of releasing the sticking of laundry from the same drum-type washing machine (A) Explanatory drawing of moisture and dirt removal around the rotating drum of the drum type washing machine, (b) Explanatory drawing of moisture and dirt removal for the rotating drum vibration of the drum type washing machine, (c) Drum type washing Explanatory drawing when the rotating drum vibration of the machine is tilted (A) Schematic diagram of water flow radiation level of the drum type washing machine, (b) Method of water flow injection into the rotating drum of the drum type washing machine and its schematic diagram. Graph of time history and dissolution rate water level from detergent injection to dissolution of the drum type washing machine Explanatory drawing of the mechanism and diffusion of air bubbles generated in the drum type washing machine and the release into the drum

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment.

(Embodiment 1)
FIG. 1 is a vertical cross-sectional view of the drum-type washing machine according to the first embodiment.

In FIG. 1, in the drum-type washing machine 1, a water tank 3 is rotatably arranged inside the washing machine main body 2, and a rotary drum 4 is rotatably arranged in the water tub 3. A rotation shaft (rotation center axis) 4a whose axial center direction is inclined downward from the front side to the back side is provided at the rotation center of the rotation drum 4, and a motor attached to the back side of the water tank 3 is provided on the rotation shaft 4a. 6 are connected, and the rotary drum 4 is rotationally driven in the forward and reverse directions by the motor 6.

A plurality of through holes 56 leading to a plurality of rows of water tanks 3 are formed on the peripheral surface of the rotating drum 4 in a direction substantially perpendicular to the rotating shaft 4a so that water can move inside and outside the rotating drum 4. ..

Further, an opening / closing door 5 is provided on the front side of the washing machine main body 2, and the clothes inlet 13 of the water tank 3 can be sealed and opened via a sealing material 14 attached to the mouth edge thereof. ing.

The water supply system 7 can supply water in a timely manner by opening and closing the water supply valve 7a, and can use the water supply to inject detergent, softener, etc. in the detergent accommodating portion into the water tank 3 in a timely manner.

Further, an operation panel 21 for selecting a mode such as an operation course and various functions is arranged on the upper part of the front surface of the washing machine main body 2, and a control means 22 is provided inside the operation panel 21.

The drainage system 8 can discharge the water drained from the drainage port 8a at the bottom of the water tank 3 to the outside of the machine when necessary, such as at the end of the washing process or the end of the rinsing process by opening and closing the drain valve 19.

Further, the water circulation path 16 provided in the lower part of the water tank 3 sucks the water in the water tank 3 by the circulation pump 20 and repeatedly returns the water to the water tank 3, thereby promoting the cleaning effect at the time of washing and promoting the rinsing effect at the time of rinsing. Can be done.

The circulation pump 20 is fixed to the base plate 2a, and the discharge side path 16b from the circulation pump 20 of the water circulation path 16 extends toward the front side of the washing machine main body 2 where the clothes inlet 13 of the water tank 3 is located. It is installed.

The upstream side of the circulation pump 20 of the water circulation path 16 communicates the suction side path 16a from the drain port 8a at the bottom of the water tank 3 to the suction port of the circulation pump 20 via the filter 57. Here, the filter 57 prevents relatively large lint from clothes and the like from entering the circulation pump 20, and catches, accumulates, or bites into the circulation pump 20 to circulate water. It prevents clogging, damage, and breakage of the path 16 and prevents lint from circulating in the rotating drum 4 and reattaching to the rotating drum 4. The filter 57 has a configuration that allows the user to easily maintain it as appropriate, and can ensure the safety and stability of the circulation operation for a long period of time.

During water circulation, the washing water that flows from the drain port 8a via the suction side path 16a and is pressurized by the circulation pump 20 is a rotating drum from the circulating water discharge port 55 via the discharge side path 16b of the water circulation path 16. 4 It is designed to discharge toward the inside.

Further, a circulating air mixing path 59 for mixing air from the circulating air suction port 58 provided in the washing machine main body 2 is provided, and the circulating air suction port 58 is located at a position higher than the water supply level and the maximum water level at the time of washing and rinsing. It is provided in. The other end of the circulating air mixing path 59 is communicated with an air mixing portion 60 provided in the middle of the suction side path 16a as an air inlet 61.

When the circulation pump 20 is driven, the water level in the circulating air mixing path 59 is lowered to the air mixing section 60 due to the pressure loss in each part in the suction side path 16a, and air is drawn from the air mixing section 60 into the suction side path 16a to provide air. The washing water mixed with air bubbles in the mixing unit 60 flows into the circulation pump 20. Then, the washing water pressurized by the circulation pump 20 is discharged from the circulation water discharge port 55 toward the inside of the rotary drum 4 via the discharge side path 16b.

Further, the drum type washing machine 1 is provided with a function of drying the laundry 10 housed in the rotating drum 4, and the air in the water tank 3 is exhausted, dehumidified, and heated by the circulation ventilation path 9. The dried air is blown into the water tank 3 again. A heat pump unit 18 in which a compressor 17, a heating means such as a radiator, a dehumidifying means such as a decompressor and an evaporator are connected by piping, and a blower fan 12 which is a blower means are provided in the middle of the circulation blower path 9. ing. In the drying process using the circulating ventilation path 9, foreign substances such as lint generated mainly from the laundry 10 such as clothes are mixed and circulated in the air circulated in the circulating ventilation path 9, which causes troubles in each part. A drying filter 15 for removing foreign matter in the circulating air is provided in the middle of the circulating air passage 9 because it is easy to carry out.

Then, the control means 22 controls the operations of the motor 6, the water supply valve 7a, the circulation pump 20, the drain valve 19, the heat pump unit 18, the blower fan 12, and the like, and controls each process such as washing, rinsing, dehydration, and drying. ..

FIG. 2 is a block diagram and a schematic diagram of each means of the drum-type washing machine according to the first embodiment of the present invention, and FIG. FIG. 4 is an explanatory view of how to release the sticking of the laundry of the drum type washing machine, FIG. 5 is an explanatory view of the progress of removing the sticking of the laundry of the drum type washing machine, and FIG. 6A is the drum type washing machine. An explanatory diagram for removing moisture and dirt around the rotating drum, (b) is an explanatory diagram for removing moisture and dirt with respect to the vibration of the rotating drum of the drum type washing machine, and (c) is a rotating drum of the same drum type washing machine. Explanatory drawing at the time of vibration tilt, FIG. 7A is a schematic diagram of the water flow radiation level of the drum type washing machine, and FIG. 7B is a method of injecting water flow into the rotating drum of the drum type washing machine and its outline. FIG. 8 is a graph of the time history and dissolution rate water level from the detergent injection of the drum type washing machine to dissolution, and FIG. 9 is an explanation of the mechanism and diffusion of air bubbles generated in the drum type washing machine and the release into the drum. It is a figure.

In FIG. 2, the water tank 3 is watertightly integrated with the substantially central portion of the wall surface of the water tank 3, and an air flow can be sent toward the rotating drum 4 in a direction substantially perpendicular to the rotating shaft 4a. The third air launch port 211 (see FIG. 3), which is watertightly integrated with the front surface of the wall surface of the water tank 3 and can send an air flow toward the rotating drum 4 in a direction substantially perpendicular to the rotating shaft 4a, and the water tank. The fourth air launch port 213 (see FIG. 9), which is watertightly integrated with the back side of the three wall surfaces and can send an air flow toward the rotating drum 4 in a direction substantially perpendicular to the rotating shaft 4a, and the back portion of the water tank 3. A second air launch port 203 is provided on the bottom surface side of the rotary drum 4 which is watertightly integrated and can send an air flow toward the outer peripheral wall of the rotary drum 4 substantially parallel to the rotary shaft 4a.

Then, the first air pressure adjusting means 202 capable of sending an air flow to the first air launch port 201 at a predetermined air pressure and the air flow can be sent to the third air launch port 211 at a predetermined air pressure. The third air pressure adjusting means 212, the fourth air pressure adjusting means 214 capable of sending an air flow to the fourth air launch port 213 at a predetermined air pressure, and the air to the second air launch port 203 at a predetermined air pressure. A second air pressure adjusting means 204 capable of sending a flow is provided.

The first air launch port 201 and the third air launch port 211 have launch ports facing in a predetermined one-row direction of through holes 56 formed in a plurality of rows in a direction substantially perpendicular to the rotation shaft 4a on the rotary drum 4. ..

Further, the water tank 3 has a first water flow launch port 205 that is watertightly integrated with the wall surface of the water tank 3 and can send a water flow toward the rotating drum 4 from the circumferential direction, and a bottom surface side of the back surface of the water tank 3. Is provided with a second water flow launch port 207 that is watertightly integrated and can send a water flow toward the outer peripheral wall of the rotating drum in a direction substantially parallel to the rotating shaft 4a.

The first water flow launch port 205 faces the launch port in a predetermined one-row direction and an angle α of the through holes 56 formed in a plurality of rows in a direction substantially perpendicular to the rotation shaft 4a on the rotary drum 4.

Then, the first water pressure adjusting means 206 capable of sending the water flow to the first water flow launch port 205 at a predetermined air pressure and the second water pressure capable of sending the water flow to the second water flow launch port 207 at a predetermined air pressure. An adjusting means 208 is provided. Further, a first valve 209 connecting the first water pressure adjusting means 206 and the tap water faucet and a second valve 210 connecting the second water pressure adjusting means 208 and the tap water faucet are provided. ..

The first air pressure adjusting means 202, the second air pressure adjusting means 204, the third air pressure adjusting means 212, the fourth air pressure adjusting means 214, the first hydraulic pressure adjusting means 206, the second hydraulic pressure adjusting means 208, and the first The operation of the valve 209 and the second valve 210 is instructed to start / stop by a signal from the control means 22.

The operation and operation of the drum-type washing machine 1 configured as described above will be described below.

In the dehydration stroke, when the dehydration of the laundry 10 is started, the control means 22 outputs a signal to the motor 6 to start the operation in order to rotate the rotating drum 4. The rotation speed is gradually increased so as to reach a rotation speed of about 1000 r / min.

In this dehydration process, dehydration is performed with a large centrifugal force by continuing a rotation of about 1000 r / min for several minutes, but the laundry 10 is subjected to a large centrifugal force and is pressed against the inner surface of the rotating drum 4. While the laundry 10 is stuck to the inner surface, only the water contained in the laundry 10 is separated from the laundry 10 in the centrifugal direction (from the rotating drum 4 to the water tank 3) from the through hole 56.

When the rotation of the rotating drum 4 is completed after a predetermined time, the rotation of the rotating drum 4 decreases and stops. As the rotation decreases, the centrifugal force applied to the laundry 10 in the rotating drum 4 decreases, and when the rotating drum 4 is stopped, the centrifugal force is also not applied, and the laundry 10 on the upper part of the rotating drum 4 becomes Gravity is applied in the falling direction due to its own weight.

Here, if the type of laundry 10 is stiff clothes or if it is heavy, it will fall due to its own weight when the rotation of the rotating drum 4 is completed. However, if the weight of the laundry 10 is light, the rotating drum 4 will fall. 4 It may remain stuck to the inner surface and not fall.

In such a case, when the user looks at the inside from the opening / closing door 5, if the laundry 10 can be seen at the bottom of the rotating drum 4, it cannot be forgotten, but it cannot be seen (it sticks to the inner surface of the rotating drum 4). In that case, it is easy to forget, and if left in a sticky state, the laundry 10 will be wrinkled, and if left for a day, it will smell due to bacteria if there is moisture in the summer. Will occur, and you will have to wash again. Furthermore, even when the laundry 10 that has become entangled on the inner surface is taken, a considerable amount of labor is required because it is intertwined.

Further, in the "washing / drying operation" in which the process shifts to the drying process after the dehydration process is completed, the laundry 10 is not agitated in the rotating drum 4, and only the surface of the stuck laundry 10 is attached. It will be dried as it is, the drying will be insufficient, and the drying will be completed in a sticky shape with wrinkles.

In FIGS. 3, 4, and 5, first, FIG. 3 shows a state in which the laundry 10 is attached to the inner surface of the rotating drum 4. In particular, the weight of the laundry 10 is light (for example, less than 3 kg), and there is a high possibility that the laundry 10 will stick to the laundry. When the dehydration process is completed, the laundry 10 in the rotating drum 4 is given an air flow from the outer circumference of the rotating drum 4, so that the laundry 10 can be released from sticking.

As an operation of releasing the sticking, when the dehydration stroke is completed, the control means 22 sends a signal to the motor 6 at a low speed to rotate the rotary drum 4, although the rotation speed is not as high as that of dehydration.

If the rotation of the rotating drum 4 is in the X direction, the through holes 56 approach the first air launch port 201 in the order of A⇒B⇒C⇒D ....

The control means 22 is operated by using the motor 6 at a low speed (for example, about 50 r / min) after the dehydration stroke is completed. While the rotating drum 4 is rotating, in response to a signal from the control means 22, air adjusted by the first air pressure adjusting means 202, for example, 1.0 MPa, is sent to the first air launch port 201 to send the first air. It is fired from the launch port 201 toward the rotating drum 4.

Here, the air flow passes through the through hole 56 A at the timing when the through hole 56 A provided in the rotary drum 4 is positioned before the air flow from the first air launch port 201 is emitted. , An air flow enters the inner surface side of the rotating drum 4. This air flow hits the sticking laundry 10, and as shown in FIG. 4, an air layer (Z) can be created between the sticking laundry 10 and the inner surface of the rotating drum 4.

When the rotating drum 4 is rotated and an air flow enters the rotating drum 4 in order from A, B, C, D ... Of the through holes 56 provided around the rotating drum 4, an air layer (generated) is generated. Z) becomes large, and eventually, as shown in FIG. 5, when the generated air layer (Z) is located at the upper part of the rotation of the rotating drum 4, it starts to partially fall due to its own weight.

At the same time, since the rotating drum 4 is rotating at a low speed, the air layer due to the air flow is continuously generated in the order of A⇒B⇒C⇒D⇒. The strength will gradually decrease, and when the part with weakened sticking strength comes to the top surface, it will gradually start to fall due to its own weight, and eventually the sticking will be released (Fig. 5). See the lower right figure).

Further, the air flow emitted from the third air launch port 211 provided on the front side wall surface of the water tank 3 toward the rotating drum 4 also performs the same operation as the first air launch port 201, and P⇒Q of the through hole 56. The air flow enters the inside of the rotating drum 4 in the order of ⇒ R ⇒ S ⇒ ..., and the air layer (Z) becomes larger. Since the third air launch port 211 is located near the end face portion of the stuck laundry 10, the sticking of the laundry 10 can be released more efficiently. That is, the effect is higher when there is a launch port in the direction of the arrow Y in FIG. 4 as well as in the vicinity of the center.

As described above, when the dehydration process is completed, the rotating drum 4 is rotated at a low speed, and the first air launch port 201 and the third air launch port 211 are directed toward the row of through holes 56 of the rotary drum 4. By firing an air stream, the laundry 10 stuck in the rotating drum 4 can be efficiently peeled off.

In FIG. 6, the second air launch port 203 is watertightly and integrally provided on the back surface of the water tank 3 as described above, and air can be sent toward the outer peripheral wall of the rotating drum 4 substantially parallel to the rotating shaft 4a. However, this is possible because the air flow emitted from the second air launch port 203 hits the outer peripheral wall of the rotary drum 4 substantially horizontally to disperse the moisture adhering to the outer peripheral surface of the rotary drum 4. can.

As shown in FIG. 6A, the second air pressure adjusting means 204 is driven and the air flow discharged from the second air launch port 203 disperses the water adhering to the outer periphery of the rotating drum 4 toward the water tank 3. Then, it is to be collected.

Further, with respect to FIGS. 6 (b) and 6 (c), the second air launch port 203 installed in a substantially horizontal direction with respect to the outer circumference of the rotating drum 4 rotates at an angle that is an acute angle (Y) to some extent. By applying an air flow to the outer circumference of the drum 4, it becomes possible to tolerate vibrations and the like when the rotating drum 4 rotates. When the direction of the radiation port is positioned parallel to the rotary drum 4 of FIG. 6 (a), the rotary drum 4 moves with respect to the radiation direction in the case of vibration of the rotary drum 4 as shown in (b). Since the position is completely occupied, the effect cannot be obtained as it is. Therefore, in order to be able to radiate the vibrating region with an angle without any problem, it is possible to deal with it by setting an angle that is substantially an acute angle.

As described above, when the dehydration process is completed, the rotating drum 4 is rotated at a low speed, and an air flow is sent from the second air launch port 203 on the back side of the water tank 3 toward the outer peripheral wall of the rotating drum 4. As a result, it is possible to eliminate moisture and the like adhering to the outer peripheral wall of the rotating drum 4, and it is possible to suppress the generation of mold and the like generated on the outer peripheral wall of the rotating drum 4 which is a factor of dirt adhesion. ..

In FIGS. 2, 7 (a) and 7 (b), as described above, the water tank 3 is watertightly integrated with the wall surface of the water tank 3 and sends a water flow from the circumferential direction toward the center of the water tank 3. A first water flow launch port 205 that can be used and a second water flow launch port 207 that is watertightly integrated on the back surface of the water tank 3 and can send a water flow in a direction substantially parallel to the rotation shaft 4a are provided. Then, the first water pressure adjusting means 206 capable of sending the water flow to the first water flow launch port 205 at a predetermined water pressure, and the second water pressure adjusting means capable of sending the water flow to the second water flow launch port 207 at a predetermined water pressure. 208 is provided. Further, a first valve 209 connecting the first water pressure adjusting means 206 and the tap water faucet and a second valve 210 connecting the second water pressure adjusting means 208 and the tap water faucet are provided. ..

Here, as the washing operation, before entering the washing process, the washing machine is energized, the opening / closing door 5 is opened, the laundry 10 is put into the rotating drum 4, and the opening / closing door 5 is closed. , Operate the operation panel 21 to start. After that, the cloth amount detecting means (not shown) automatically detects the cloth amount of the laundry 10 in the rotating drum 4, displays the amount of detergent corresponding to the cloth amount on the operation panel 21, and informs the user of the amount of detergent. Encourage them to put in.

When the user puts the detergent into the detergent charging section (not shown) based on the display, the control means 22 first performs a water supply control operation of supplying water to a predetermined water level at the initial stage of the washing process or during the water supply process. Then, the washing water containing the detergent in the detergent accommodating portion is poured into the water tank 3 by using the water supply.

The cleaning water containing the detergent put into the water tank 3 will be accumulated from the bottom surface of the water tank 3, but the detergent dissolves in the water and improves the cleaning effect in a foamy state, but it is simply a water tank. When it is put into No. 3 together with tap water, it takes time to dissolve. That is, as the washing process progresses, the washing water in the water tank 3 is agitated together with the laundry 10, so that the dissolution progresses. In this state, there is a very high possibility that the effect of washing from the initial stage of the washing process will not be sufficiently obtained, and there is a possibility that it will take time for the washing process itself to obtain the effect.

Therefore, when the input of the washing water starts, the control means 22 opens the first valve 209 and guides the tap water to the first water pressure adjusting means 206. The first water pressure adjusting means 206 adjusts the water pressure so that the water stored in the water tank 3 can be agitated, and sends the water pressure to the first water flow launch port 205. The sent water stream is discharged from the first water stream launch port 205, and the washing water stored in the water tank 3 is agitated by this water stream. At this time, the water flow is discharged from the first water flow launch port 205 with a water pressure sufficient to raise the water surface of the water storage line so as to push away the water storage in the water tank 3 (rotary drum 4).

In the past, it was only poured into the water tank 3 together with the washing water, and it was only dissolved by the impact when the washing water was poured after the detergent was poured, the waves generated by the impact, and the water flow. As described above, since the water flow can be agitated by the water flow generated from the first water flow launch port 205, the detergent dissolves very quickly.

Similarly, the second valve 210 is opened, the water pressure of the second water pressure adjusting means 208 is adjusted, and the water flow is discharged from the second water flow launch port 207 toward the washing water stored in the water tank 3. , Promotes the dissolution of detergent.

Here, when the detergent is put into the water tank 3, the rotation shaft 4a of the water tank 3 (rotary drum 4) is inclined downward from the front side to the back side, so that the detergent is on the back side bottom surface of the water tank 3. Move around the department. Therefore, it is more effective to dissolve the detergent by firing water pressure and air from the second water flow launch port 207 and the second air launch port 203 at the positions shown in FIG. 7A.

It should be noted that this operation is performed not only in the washing process but also in the rinsing process, in order to promote the dissolution of the detergent and allow more washing water to pass between the constituent fibers of the laundry 10. ..

In FIG. 7B, as described above, a water stream is emitted from the water tank 3 to the laundry 10 in the rotary drum 4 through the opening provided in the rotary drum 4 (for example, about 1.0 MPa: water is stored). Each means operates by a signal from the control means 22 so that the washing process and the rinsing process proceed in the water surface (based on the level at which the water surface rises and undulates).

Further, a water stream is sent from the outer periphery of the rotary drum 4 into the rotary drum 4 through the through hole 56. As described above, the first water stream launch port 205 is directed to the rotary drum 4 in a direction substantially perpendicular to the rotary shaft 4a. Since the launch port is oriented in the predetermined one-row direction and the direction of the angle α of the through holes 56 formed in a plurality of rows, the through hole 56 is discharged from the first water flow launch port 205, and the through hole 56 is in line with the discharged water flow. In the case of the position, the fired water stream reaches the laundry 10 in the rotating drum 4, but the rotating drum 4 rotates left and right in both the washing process and the rinsing process. Among them, the water flow is radiated from the outer circumference of the rotating drum 4, and if the rows of the water flow and the through holes 56 are not in a straight line, the water flow hits the outer circumference of the rotating drum 4.

In that case, the influence on the laundry 10 will disappear, but in recent years, there are concerns that the rotating drum 4 is dirty and mold is growing, so by applying water pressure to the outer peripheral part. , It leads to prevention of dirt sticking and mold growth / propagation. By carrying out the operation without knowing it during normal operation, it is possible to maintain the hygienic rotating drum 4 in a state where it is carried out in each operation and does not bother the user.

FIG. 8 shows an example of the dissolution rate of the detergent, which shows the dissolution rate when the detergent is put in the water tank 3.

The dotted line a is the case where the detergent dissolution is not promoted, and the solid line b is the case where the detergent dissolution is promoted in the first embodiment.

By starting the water flow from the first water flow launch port 205 and the second water flow launch port 207 from the beginning when the washing water containing the detergent is added, the dissolution rate of the detergent rises well, and the speed is about 1/2. Will be dissolved in. Therefore, the attack on the laundry 10 with the detergent stains is quickened, and if the washing completion level is set to the same level, the washing is completed quickly, and the washing performance can be improved.

In FIG. 9, the fourth air ejection port 213, in which an air flow is sent from the fourth air pressure adjusting means 214 at a predetermined air pressure, has a bubble filter 215 on its surface, and sends air to the bubble filter 215. As a result, it is released as bubbles at the level of several nanometers. The bubble filter 215 has the same effect even if a nano bubble shower, which is also a commercially available product, is used as a substitute.

The control means 22 first outputs an operation signal to the fourth air pressure adjusting means 214 in order to release the air flow. When this signal is received and the air flow is discharged from the fourth air launch port 213, the air flow is launched from the fourth air launch port 213.

Here, the bubble filter 215 that receives the air flow forms a large number of lattices that have a large passage resistance to the air flow and block the air, so that the air flow passes through the lattice and becomes small. It becomes a mass of air and is released as bubbles at the level of several nanometers.

When a water stream is launched from the first water stream launch port 205 while the bubbles are released into the water tank 3, the bubbles that collide with the water stream may be further divided by the water stream, and the bubble diameter. Many bubbles with different diameters will be generated.

When the bubbles having different diameters are swept by the force of the water flow from the first water flow launch port 205, they are discharged together with the water flow into the rotating drum 4 through the through hole 56 formed in the side wall of the rotating drum 4. You will hit the laundry 10.

When the laundry 10 is exposed to a water stream, there is a high possibility that the water stream will pass through the gaps between the fibers of the laundry 10, and as a result, dirt and detergent adhering to the gaps between the fibers can be washed away. If bubbles at the nanometer level are present in the water stream, the bubbles will burst when they pass through the gaps between the fibers of the laundry 10 or when they come into contact with the fibers, resulting in the effect of micro-vibration. Furthermore, dirt and detergent can be separated from the fibers.

Furthermore, regarding the foaming of detergent, by mixing the bubbles, it is possible to form a large amount of bubbles quickly and in a short time.

(Effects, etc.)
As described above, in the present embodiment, the drum type washing machine 1 has a rotating drum 4 having a rotating shaft 4a whose axial direction is inclined downward from the front side to the back side, and the inside of the washing machine main body 2. The water tank 3 is elastically supported so as to be swingable and contains the rotary drum 4 rotatably, the through holes 56 formed in a plurality of rows on the wall surface of the rotary drum 4 in a direction substantially perpendicular to the rotary shaft 4a, and the rotary drum 4 are rotated. First, the motor 6 to be operated, the water supply valve 7a for supplying water to the water tank 3, and the wall surface of the water tank 3 are watertightly integrated, and an air flow can be sent toward the rotating drum 4 in a direction substantially perpendicular to the rotating shaft 4a. An air launch port 201, a first air pressure adjusting means 202 capable of sending an air flow to the first air launch port 201 at a predetermined air pressure, a motor 6, a water supply valve 7a, a first air pressure adjusting means 202, and the like. The first air launch port 201 is provided with a control means 22 for controlling, sequentially controlling a series of processes such as washing, rinsing, and dehydration, and the launch port is facing in a predetermined one-row direction of the through hole 56. At the end of the dehydration stroke, the control means 22 drives the first pneumatic adjusting means 202 while rotating the rotating drum 4 at a low speed to launch an air flow from the first air launch port 201.

As a result, the sticking of the laundry 10 to the inner surface of the rotating drum 4 can be released to improve the usability of the user, and when the laundry 10 is dried, the finish by drying can be improved.

Further, as in the present embodiment, the drum type washing machine 1 is watertightly integrated with the front surface side of the wall surface of the water tank 3 and sends an air flow toward the rotating drum 4 in a direction substantially perpendicular to the rotating shaft 4a. The first air pressure adjusting means 202 further includes a third air launch port 211 capable of being formed, and a third air pressure adjusting means 212 capable of sending an air flow to the third air launch port 211 at a predetermined air pressure. The third air launch port 211 is provided at substantially the center of the wall surface of the water tank 3, and the launch port faces in the direction of another predetermined row of the through holes 56, and the control means 22 further adjusts the third air pressure. The means 212 is controlled, and at the end of the dehydration stroke, the first air pressure adjusting means 202 and the third pneumatic adjusting means 212 are driven while rotating the rotating drum 4 at a low speed to drive the first air launch port 201 and the third. An air flow is emitted from the air launch port 211.

As a result, the sticking of the laundry 10 to the inner surface of the rotating drum 4 can be further released to further improve the usability of the user, and when the laundry 10 is dried, the finish by drying can be further improved.

Further, as in the present embodiment, the drum type washing machine 1 is watertightly integrated with the bottom surface side of the back surface portion of the water tank 3, and air is substantially parallel to the rotating shaft 4a toward the outer peripheral wall of the rotating drum 4. The control means 22 further includes a second air launch port 203 capable of sending a flow and a second air pressure adjusting means 204 capable of sending an air flow to the second air launch port 203 at a predetermined air pressure. Further, the second air pressure adjusting means 204 is controlled, and at the end of the dehydration stroke, the second air pressure adjusting means 204 is driven while rotating the rotating drum 4 at a low speed, and the rotation is performed from the second air launch port 203. An air flow is emitted toward the outer wall of the drum.

As a result, it is possible to eliminate moisture and the like adhering to the outer peripheral wall of the rotating drum, and it is possible to suppress the generation of mold and the like generated on the outer peripheral wall of the rotating drum due to dirt adhesion.

Further, in the present embodiment, the drum type washing machine 1 swings in the washing machine main body 2 and a rotating drum 4 having a rotating shaft 4a whose axial center direction is inclined downward from the front side to the back side. A water tank 3 that is freely elastically supported and rotatably contains a rotating drum 4, a through hole 56 formed in a plurality of rows on the wall surface of the rotating drum 4 in a direction substantially perpendicular to the rotating shaft 4a, and a motor 6 that rotates the rotating drum 4. To the water supply valve 7a that supplies water to the water tank 3, the first water flow launch port 205 that is watertightly integrated with the water tank 3 and can send the water flow toward the rotating drum 4, and the first water flow launch port 205. The first water pressure adjusting means 206 capable of sending a water flow at a predetermined air pressure, the motor 6, the water supply valve 7a, the first water pressure adjusting means 206, etc. are controlled, and a series of processes such as washing, rinsing, and dehydration are sequentially controlled. The control means 22 is provided with, and the control means 22 drives the first water pressure adjusting means 206 after the detergent and water are charged into the water tank 3 in the washing process, and causes the water flow from the first water flow launch port 205. It is something to fire.

As a result, the dissolution of the detergent can be promoted and the cleaning performance can be improved.

Further, as in the present embodiment, the drum type washing machine 1 is watertightly integrated with the bottom surface side of the back surface portion of the water tank 3, and is substantially parallel to the rotating shaft 4a, in the direction of the outer peripheral wall of the rotating drum 4. A second water flow launch port 207 capable of sending a water flow toward the water flow and a second water pressure adjusting means 208 capable of sending a water flow to the second water flow launch port 207 at a predetermined air pressure are further provided to launch the first water flow. The port 205 is provided on the back side of the wall surface, and the control means 22 drives the first water pressure adjusting means 206 and the second water pressure adjusting means 208 after the detergent and water are put into the water tank 3 in the washing process. , The water stream is launched from the first water stream launch port 205 and the second water stream launch port 207.

As a result, the dissolution of the detergent can be further promoted, and the cleaning performance can be further improved.

Further, as in the present embodiment, in the drum type washing machine 1, the first water flow launch port 205 has a predetermined number of through holes 56 formed in a plurality of rows on the wall surface of the rotating drum 4 in a direction substantially perpendicular to the rotating shaft 4a. The launch port is oriented in the direction of one row and the direction of the angle α.

As a result, it is possible to prevent the dirt from sticking to the outer wall of the rotating drum 4 and prevent the generation and propagation of mold.

Further, in the present embodiment, the drum type washing machine 1 swings in the washing machine main body 2 and a rotating drum 4 having a rotating shaft 4a whose axial center direction is inclined downward from the front side to the back side. A water tank 3 that is freely elastically supported and rotatably contains a rotating drum 4, a through hole 56 formed in a plurality of rows on the wall surface of the rotating drum 4 in a direction substantially perpendicular to the rotating shaft 4a, and a motor 6 that rotates the rotating drum 4. A fourth, which is watertightly integrated with the water supply valve 7a for supplying water to the water tank 3 and the back side of the wall surface of the water tank 3, and can send an air flow toward the rotating drum 4 in a direction substantially perpendicular to the rotating shaft 4a. An air launch port 213, a fourth air pressure adjusting means 214 capable of sending an air flow to the fourth air launch port 213 at a predetermined air pressure, a motor 6, a water supply valve 7a, a fourth air pressure adjusting means 214, and the like. The fourth air launch port 213 includes a control means 22 for controlling, sequentially controlling a series of processes such as washing, rinsing, and dehydration, and the fourth air launch port 213 has a bubble filter 215 capable of discharging nanometer-level bubbles on its surface. The control means 22 drives the fourth air pressure adjusting means 214 to emit an air flow from the fourth air launch port 213 in the washing stroke and / or the rinsing stroke.

As a result, in the washing process, foaming of the detergent can be promoted and dirt adhering to the gaps between the fibers can be quickly removed, and in the rinsing process, the detergent remaining in the gaps between the fibers can be quickly removed.

As described above, the drum-type washing machine according to the present invention can prevent the laundry from sticking to the inner surface of the rotating drum, improve the usability of the user, improve the finish by drying, and the detergent. Since it can promote dissolution and improve cleaning performance, it can be applied to other washing machine applications such as vertical type.

1 Drum type washing machine 2 Washing machine body 3 Water tank 4 Rotating drum 4a Rotating shaft 5 Opening and closing door 6 Motor 7 Water supply system 7a Water supply valve 8 Drainage system 13 Clothes inlet 22 Control means 56 Through hole 201 First air launch port 202 1 Pneumatic adjusting means 203 Second air pressure adjusting means 204 Second air pressure adjusting means 205 First water flow launching port 206 First water pressure adjusting means 207 Second water flow launching port 208 Second water pressure adjusting means 211 Third air launching port 212 Third Pneumatic adjustment means 213 Fourth air launch port 214 Fourth air pressure adjustment means 215 Bubble filter

Claims (8)

A rotating drum having a rotating shaft whose axial direction is inclined downward from the front side to the back side, and a water tank rotatably supported in the washing machine body and rotatably containing the rotating drum. A plurality of rows of through holes formed in the wall surface of the rotating drum in a direction substantially perpendicular to the rotation axis, a motor for rotating the rotating drum, a water supply valve for supplying water to the water tank, and watertightly integrated with the wall surface of the water tank. A first air launch port capable of sending an air flow toward the rotating drum in a direction substantially perpendicular to the rotation axis, and a first air launch port capable of sending an air flow to the first air launch port at a predetermined air pressure. The first air firing is provided with one air pressure adjusting means and a control means for controlling the motor, the water supply valve, the first air pressure adjusting means, etc., and sequentially controlling a series of processes such as washing, rinsing, and dehydration. The mouth has a launch port facing in a predetermined one-row direction of the through hole, and the control means drives the first pneumatic adjusting means while rotating the rotating drum at a low speed at the end of the dehydration stroke. A drum-type washing machine that emits an air flow from the first air launch port. A third air launch port that is watertightly integrated with the front surface side of the water tank wall surface and can send an air flow toward the rotating drum in a direction substantially perpendicular to the rotation axis, and a predetermined third air launch port. A third air pressure adjusting means capable of sending an air flow by air pressure is further provided, the first air pressure adjusting means is provided at a substantially central portion of the wall surface of the water tank, and the third air launch port is provided. The launch port is oriented in another predetermined row of the through holes, and the control means further controls the third pneumatic adjusting means to rotate the rotating drum at a low speed at the end of the dehydration stroke. The drum-type washing according to claim 1, wherein the first air pressure adjusting means and the third air pressure adjusting means are driven to emit an air flow from the first air launch port and the third air launch port. Machine. A second air launch port that is watertightly integrated with the bottom surface side of the back surface of the water tank and can send an air flow toward the outer peripheral wall of the rotating drum substantially parallel to the rotation axis, and the second air. Further provided with a second air pressure adjusting means capable of sending an air flow to the launch port at a predetermined air pressure, the control means further controls the second air pressure adjusting means, and at the end of the dehydration stroke, According to claim 1 or 2, the second air pressure adjusting means is driven while rotating the rotating drum at a low speed to emit an air flow from the second air launch port toward the outer peripheral wall of the rotating drum. The described drum type washing machine. A rotating drum having a rotating shaft whose axial direction is inclined downward from the front side to the back side, and a water tank rotatably supported in the washing machine body and rotatably containing the rotating drum. A plurality of rows of through holes formed in a wall surface of the rotating drum in a direction substantially perpendicular to the rotating shaft, a motor for rotating the rotating drum, a water supply valve for supplying water to the water tank, and watertightly integrated with the water tank. , A first water flow launch port capable of sending a water flow toward the rotary drum, a first water pressure adjusting means capable of sending a water flow to the first water flow launch port at a predetermined air pressure, the motor, and a water supply valve. , The first water pressure adjusting means and the like are provided with a control means for sequentially controlling a series of processes such as washing, rinsing, and dehydration. After that, a drum-type washing machine that drives the first water pressure adjusting means to launch a water stream from the first water stream launch port. A second water flow launch port that is watertightly integrated with the bottom surface side of the back surface of the water tank and can send a water flow toward the outer peripheral wall of the rotating drum in a direction substantially parallel to the rotation axis, and the first water flow outlet. The second water pressure adjusting means capable of sending the water flow to the second water flow launch port at a predetermined air pressure is further provided, the first water flow launch port is provided on the back side of the wall surface, and the control means is used for the washing process. 4 Drum type washing machine described in. A second air launch port that is watertightly integrated with the bottom surface side of the back surface of the water tank and can send an air flow toward the outer peripheral wall of the rotating drum substantially parallel to the rotation axis, and the second air. Further provided with a second air pressure adjusting means capable of sending an air flow to the launch port at a predetermined air pressure, the control means said the second after the detergent and water were charged into the water tank in the washing process. The drum-type washing machine according to claim 4 or 5, wherein the air pressure adjusting means is driven to emit an air flow from the second air launch port. 4. The drum type washing machine according to 5. A rotating drum having a rotating shaft whose axial direction is inclined downward from the front side to the back side, and a water tank rotatably supported in the washing machine body and rotatably containing the rotating drum. A plurality of rows of through holes formed in a wall surface of the rotating drum in a direction substantially perpendicular to the rotation axis, a motor for rotating the rotating drum, a water supply valve for supplying water to the water tank, and watertightness on the back side of the water tank wall surface. A fourth air outlet capable of sending an air flow toward the rotating drum in a direction substantially perpendicular to the rotation axis and an air flow being sent to the fourth air launch port at a predetermined air pressure. The fourth air pressure adjusting means capable of controlling the motor, the water supply valve, the fourth air pressure adjusting means, and the like, and a control means for sequentially controlling a series of processes such as washing, rinsing, and dehydration are provided. The four air launch ports have a bubble filter capable of discharging nanometer-level bubbles on the surface thereof, and the control means drives the fourth pneumatic adjusting means in the washing process and / or the rinsing process. A drum-type washing machine that emits an air flow from the fourth air ejection port.

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