JP2016059599A - Twin tub type washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable execution of a washing operation on a dewatering tub side, while using a comparatively simple configuration.SOLUTION: A twin tub type washing machine of the embodiment includes a washing tub and a dewatering tub which has a dewatering basket, and it executes a washing operation comprising washing, rinsing and dewatering based on a manual operation. It also includes: a dewatering tub side drain valve which opens/closes a drain passage of the dewatering tub and which can be opened/closed by a manual operation; a water supply switching mechanism which switches water supply from a water supply port to the washing tub and water supply to the dewatering tub by a manual operation; and an operation unit for executing the washing operation on the dewatering tub side. The dewatering tub side drain valve is brought into a blocked state, being interlocked with water supply switching from the washing tub side to the dewatering tub side by the water supply switching mechanism.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a two-tub washing machine.

  The two-tub washing machine generally includes a washing tub and a dewatering tub having a dewatering basket, and is configured to perform each step of a washing operation including washing, rinsing, and dehydration based on a manual operation. This two-tub washing machine is still in demand, especially for elderly people. In this two-tub washing machine, the user first puts laundry and detergent into the washing tub, supplies water to a desired water level, operates a washing timer, and performs a washing process for a desired time. Next, drainage and water supply are performed, and a rinsing process is performed by operating a washing timer. Thereafter, the laundry after the rinsing process is transferred to the dehydration basket in the dehydration tank, and the dehydration process is performed by operating the dehydration timer.

  By the way, when washing a large laundry such as a blanket with this two-tub washing machine, the user takes labor to transfer the heavy laundry that contains water and is difficult to handle from the washing tub to the dehydration tub. Work is required. On the other hand, for example, Patent Document 1 discloses a two-tank type washing machine that can perform a washing operation that is easy to wash as well as dewatering on the side of the dehydration tank. According to the two-tub washing machine of Patent Document 1, it is possible for a user to perform washing only on the side of the dewatering tank without transferring the laundry.

Japanese Patent Laid-Open No. 11-300075

  However, in the two-tub washing machine described in Patent Document 1, water supply valves are provided in two water supply pipes for supplying water to the washing tub and the dewatering tank, respectively, and the drainage pipes of the washing tub and the dewatering tub are respectively drained. A valve is provided, and a control unit including a microcomputer is provided. The control unit is configured to advance the washing operation by controlling the two water supply valves, the two drain valves, the washing motor, and the dehydrating motor, respectively, based on the signal of the water level sensor. In this case, the two-tank washing machine of Patent Document 1 is a so-called semi-automatic machine, and has a complicated configuration that is far from the original two-tank washing machine that manually advances each step of washing. .

  Therefore, in the two-tank washing machine, it is possible to carry out the washing operation on the dewatering tub side while having a relatively simple configuration.

  The two-tank washing machine of the embodiment includes a washing tub and a dehydrating tub having a dewatering basket, and performs a washing operation including washing, rinsing, and dehydration based on a manual operation. A dewatering tank side drain valve that can be opened and closed by manual operation, a water supply switching mechanism that manually switches between water supply to the washing tub and water supply from the water supply port to the dehydration tub, An operation unit for executing a washing operation on the water tank side, and in conjunction with the water supply switching from the washing tank side to the dehydration tank side by the water supply switching mechanism, the dewatering tank side drain valve is in a closed state It has the characteristics where it is said.

A longitudinal front view showing an overall configuration of a two-tub washing machine, showing an embodiment Top view of the operation panel Longitudinal section showing how large laundry is stored in a dewatering basket Top view of dehydration cap The figure which shows an example of the process in the case of performing washing operation in a dehydration tank Schematic longitudinal front view showing two types of laundry nets (a) and (b)

  Hereinafter, an embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 schematically shows an overall configuration of a two-tub washing machine 1 according to the present embodiment. Here, a tank body 3 made of, for example, a synthetic resin is provided on a base 2 having a rectangular container shape. It has been. The tank 3 is integrally provided with a washing tub 4 and a dewatering tub 5 arranged side by side. An upper cover 31 is attached to the upper part of the tank body 3.

  The washing tub 4 is provided with an overflow strainer 6 at one location on the inner peripheral side, and a pulsator 7 is rotatably disposed at the inner and lower portion. At this time, a drive shaft 26 extending vertically through the bottom of the washing tub 4 is rotatably supported by a bearing mechanism portion 25 provided on the outer bottom side of the washing tub 4. Is attached to the upper end of the drive shaft 26. A driving mechanism 27 for rotating the drive shaft 26 in the forward and reverse directions is provided in the base 2. The drive mechanism unit 27 includes a washing motor 28 attached to the base 2 and a belt transmission mechanism 29 that transmits the rotation of the washing motor 28 to the drive shaft 26.

  The washing motor 28 is composed of, for example, an induction motor, and is energized via a drive circuit (not shown) when a washing timer described later is turned on. Thus, the pulsator 7 is driven to rotate at a low speed in the forward and reverse directions by the washing motor 28 via the belt transmission mechanism 29. Thereby, the water flow which stirs the laundry (not shown) accommodated in the washing tub 2 with wash water is produced | generated.

  Inside the dewatering tub 5, a dewatering basket 10 for storing laundry is disposed so as to be rotatable about a vertical axis. The dewatering basket 10 is a cylindrical container whose upper surface is open, and a large number of water passage holes 9 are provided on the peripheral side thereof. A ring-shaped balancer 8 (see FIG. 3) is provided at the upper end of the dewatering basket 10. A dehydration cap 20 (see FIGS. 3 and 4) is attached to the upper surface opening of the dehydration basket 10. The dewatering cap 20 will be described later.

  In the base 2, a dehydrating motor 11 that rotates the dehydrating basket 10 is provided below the dehydrating tank 5, and a brake device 12 that stops the rotation of the dehydrating motor 11. Is arranged. The dehydrating motor 11 is composed of, for example, an induction motor, and the rotating shaft 11 a of the dehydrating motor 11 is connected to the shaft 10 a of the dehydrating basket 10. Thereby, the dehydrating motor 11 is configured to rotate the dehydrating basket 10 directly.

  The dehydrating motor 11 is energized via a drive circuit (not shown) when a dehydrating timer, which will be described later, is turned on and when a dehydrating tank washing timer is turned on. In this case, when the dehydration timer is on, the dehydration motor 11 is energized continuously, the dehydration basket 10 is rotated at a high speed in one direction, and the laundry stored in the dehydration basket 10 is centrifugally dehydrated. As will be described later, when the dewatering tank washing timer is turned on, the dewatering motor 11 is intermittently driven in one direction. The brake device 12 is operated when a dehydrating lid, which will be described later, is opened.

  A drain port 13 is provided at the bottom of the washing tub 4, and a drain line 14 is connected to the drain port 13. The drain pipe 14 is provided with a washing tub side drain valve 15. Although not shown in detail, this washing tub side drain valve 15 includes a valve seat, a valve body that opens and closes the valve seat, a spring that biases the valve body toward the closing side, a wire that pulls and opens the valve body, etc. It has a known configuration with Although not specifically shown, the wires are provided in a relationship shown by broken lines in FIG. The washing tub-side drain valve 15 is normally closed, and is opened by the wire operation (pulling operation) in accordance with the rotation operation of the operation knob 36 described later. A drainage hose (not shown) is connected to the outlet side end of the drainage pipe 14 so that drainage to the outside is performed when the washing tub side drainage valve 15 is opened.

  A drain port 16 is provided at the bottom of the dewatering tank 5, and a dewatering side drain pipe 17 as a drain channel is connected to the drain port 16. The dewatering side drain pipe 17 is provided with a dewatering tank side drain valve 18. This dewatering tank side drain valve 18 also has the same configuration as the washing tank side drain valve 15 and is normally in a closed state, and, as will be described later, in the state of switching water supply to the washing tank 4 side, It is opened by a pulling operation. The outlet of the dewatering side drain pipe 17 (dewatering tank side drain valve 18) is connected to the middle part of the drain pipe 14 (downstream side from the washing tank side drain valve 15). When 18 is opened, drainage to the outside is performed through the drainage hose.

  The upper cover 31 is detachably provided with a washing lid 32 that opens and closes the top opening of the washing tub 4, and a dehydration lid 33 that opens and closes the top opening of the dehydration tub 5. . The dehydrating lid 33 is rotatable in the vertical direction with the rear portion as a fulcrum. An operation panel 34 is provided at the rear of the upper cover 31. As shown in FIG. 2, the operation panel 34 includes, in order from the left, an operation knob 35 for the washing timer, an operation knob 36 for switching the water flow and opening / closing the drain valve, and an operation knob 37 for the dehydration / dehydration tank washing timer. The water supply port 38 and the operation knob 39 for switching the water supply destination are provided side by side in the horizontal direction.

  Of these, the water supply port 38 is connected to the tip of a water supply hose (not shown), and the base end of the water supply hose is connected to, for example, a water faucet. As shown in FIG. 1, the upper cover 31 is provided with a water supply path 40 that continues from the water supply port 38. Although not shown in detail, the water supply path 40 is bifurcated into the washing tub 4 side and the dewatering tub 5 side, and the operation of a switching member (not shown) supplies water to the washing tub 4 and the dewatering tub. The water supply to the 5 side can be switched. In this embodiment, a detergent or finishing agent charging case 41 is provided in the middle of the water supply path 40 toward the dehydration tank 5.

  The switching of the water supply (the operation of the switching member) is performed by manually operating the operation knob 39 for switching the water supply destination. That is, as shown in FIG. 2, the operation knob 39 for switching the water supply destination is provided so as to be slidable in the left-right direction. When the operation knob 39 is slid to the left, water is supplied to the washing tub 4 side, and when the operation knob 39 is slid to the right, water is supplied to the dehydration tub 5 side. . Thereby, the water supply switching mechanism is comprised from the operation knob 39 for water supply destination switching, the switching member provided in the water supply path 40, etc. FIG.

  Further, in the present embodiment, a wire (not shown) for operating the dewatering tank side drain valve 18 is operated via a cam mechanism (not shown) in conjunction with the movement of the operation knob 39. Although not specifically shown, the wires are provided in a relationship shown by broken lines in FIG. Thus, when the operation knob 39 is slid to the left side (the water supply side to the washing tub 4), the wire is pulled and the dewatering tub side drain valve 18 is opened. Further, when the operation knob 39 is slid to the right side (water supply side to the dehydration tank 5), the dewatering tank side drain valve 18 is closed in conjunction with the switching of the water supply. As a result, the washing water supplied to the dewatering tank 5 through the water supply path 40 can be stored in the dewatering tank 5.

  At this time, as shown in FIG. 3, water is supplied to the left side portion on the dehydration cap 20 arranged on the upper surface of the dehydration basket 10 by the water supply path 40 to the dehydration tank 5 side. In FIG. 3, the flow of the water supply is indicated by an arrow A. As shown in FIG. 4, the dewatering cap 20 is provided with a relatively large drop opening 21 that is located at the center and for dropping water toward the center of the dewatering basket 10. A guide groove portion 22 having an arcuate cross section (U shape) that guides water to the dropping port 21 is formed in a cross shape. Thus, water is supplied to the central portion of the dehydration basket 10 on the dehydration tank 5 side. A plurality of relatively small holes 20 a are also formed in the region of the dehydrating cap 20 excluding the dropping port 21 and the guide groove portion 22. Although not shown, a water level scale indicating a water supply level suitable for performing a washing operation in the dewatering tank 5 is provided on the inner peripheral wall of the dewatering tank 5.

  As shown in FIG. 2, the operation knob 35 for the washing timer is for setting and operating a spring type washing timer (not shown) provided on the back side of the operation panel 34. By the turning operation of the knob 35, the washing time (including rinsing) in the washing tub 4 or the rest washing time can be set.

  The operation knob 36 for switching the water flow and opening / closing the drain valve is provided so as to be rotatable between three positions of “strong”, “standard”, and “drain”. By locating the operation knob 36 at either “strong” or “standard”, the inversion time of the pulsator 7 that forms the water flow at the time of washing (rinsing) in the washing tub 4 is switched, A weaker standard water flow can be selected. Although not shown in detail, when the operation knob 36 is positioned at the “drainage”, the wire of the washing tub side drain valve 15 is pulled, the washing tub side drain valve 15 is opened, and the washing tub side drain valve 15 is opened. Drainage is to be performed.

  The operation knob 37 for the dehydration / dehydration tank washing timer operates a spring type dehydration / dehydration tank washing timer (not shown) provided on the back side of the operation panel 34. The operation knob 37 is provided so as to be rotatable in both the clockwise (clockwise) and counterclockwise (counterclockwise) directions from the illustrated neutral position (timer time “0” position). In this case, when the operation knob 37 is rotated clockwise, a dehydration operation for a set time is performed. In this dehydration operation, the dehydration motor 11 is continuously rotated at a high speed (for example, up to a maximum speed of 2300 rpm), so that the dehydration basket 10 rotates at a high speed in one direction, and centrifugal dehydration of the laundry is performed.

  On the other hand, when the operation knob 37 is turned in the counterclockwise direction, the dehydrating tub washing operation for the set time is performed in the dehydrating tub 5. In this dewatering tank washing operation, the dehydrating motor 11 is intermittently driven in one direction. Specifically, the dehydrating motor 11 is repeatedly turned on and off, and the on / off repetition time at that time is, for example, an on time of 3 seconds and an off time of 9 seconds longer than that. Thus, as will be described in the following description of the operation, a gentle water flow relatively passes through the laundry housed in the dewatering basket 10, and washing (rinsing) is performed also on the dewatering tank 5 side. Will be able to.

  Therefore, in this embodiment, the operation knob 37 for the dehydration / dehydration tank washing timer functions as an operation unit for executing the washing operation on the dehydration tank 5 side. The timer for the dehydration tub washing operation and the timer for the dehydration operation are also used as one dehydration / dehydration tub washing timer, and the dehydration tub washing operation and the dehydration operation are switched according to the operation direction of the operation knob 37. It has a configuration that can be.

  Next, the operation of the above configuration will be described with reference to FIG. In the two-tank washing machine 1 described above, first, a normal (general) washing operation that has been conventionally performed, that is, a washing rinsing process in the washing tub 4 is performed, and then the laundry is washed in the washing tub. It is possible to perform a washing operation in which the dehydration process is performed by transferring from 4 to the dehydration tank 5 (dehydration basket 10). In this general washing operation, the user operates the operation knob 39 for switching the water supply destination of the operation panel 34 to the left side (the water supply side to the washing tub 4). At this time, the dewatering tank side drain valve 18 is opened.

  The user puts the laundry into the washing tub 4 and operates the operation knob 36 for switching the water flow and opening / closing the drain valve to select the water flow strength (“strong” or “standard”). At this time, the washing tub-side drain valve 15 is closed and water can be stored in the washing tub 4. Then, the user supplies water into the washing tub 4 through the water supply path 40 by opening the tap. When water is supplied to a predetermined water level, the faucet is closed to stop water supply. Next, the user puts a required amount of detergent into the washing tub 4 and then operates the washing timer operation knob 35 to operate the washing timer. As a result, the pulsator 7 is driven and a washing process for a set time is performed.

  When the washing process ends, the user operates the operation knob 36 for switching the water flow and opening / closing the drain valve to “drain”. Then, the washing tub side drain valve 15 is opened and the washing tub 4 is drained. When draining is completed, the operation knob 36 for switching the water flow and opening / closing the drain valve is operated to “strong” or “standard”, and then water is supplied to the washing tub 4 again, and the operation knob 35 for the washing timer is operated. And run the wash timer. Thereby, the rinsing process of the set time is performed. The rinsing process can be repeated several times.

  After the end of the rinsing process, the user drains water from the washing tub 4 and transfers the laundry to the dehydration basket 10. Then, when the user rotates the operation knob 37 for the dehydration / dehydration tank washing timer in the clockwise direction, the dehydration operation for rotating the dehydration basket 10 in one direction at high speed is performed. Since the dewatering tank side drain valve 18 is in an open state, the water discharged from the laundry is drained from the dewatering tank 5 as it is.

  Here, in the case of general laundry (general clothing, etc.), the above-described washing process may be performed, but in the case where the laundry is a large item such as a blanket, it is considerably heavy including water. Therefore, a laborious work of transferring the difficult-to-handle laundry to the dehydration basket 10 from the washing tub 4 is required. Therefore, in the two-tank washing machine 1 of the present embodiment, when washing a large laundry B (see FIG. 3) such as a blanket, the process from washing to dehydration is performed as follows on the dehydrating tank 5 side. Can be done. FIG. 5 shows an example of a process when the washing operation is performed on the side of the dewatering tank 5.

  For example, the laundry B such as a blanket can be folded into an elongated shape and then wound into a roll shape to form a substantially cylindrical shape. As shown in FIG. 3, the laundry B is accommodated in the dewatering basket 10 in that state. Is done. Hereinafter, for example, the steps illustrated in FIG. 5 are sequentially performed based on the manual operation of the user. That is, first, water is supplied into the dehydration tank 5. In performing water supply, the user operates the operation knob 39 for switching the water supply destination to the right side (the water supply side to the dehydration tank 5). As a result, the dewatering tank side drain valve 18 is closed, and water (washing water) can be stored in the dewatering tank 5. In addition, the user puts in advance a necessary detergent in a filling case 41 in the middle of the water supply path 40.

  The user supplies water by opening the tap. In this case, since the water supply path 40 is switched to the dehydration tank 5 side, water is supplied to the dehydration tank 5 side through the water supply path 40. At this time, water from the tap water is supplied through the charging case 41 while dissolving the detergent. Further, as described above, water is supplied from the dropping port 21 of the dewatering cap 20 disposed on the upper surface of the dewatering basket 10 toward the center of the dewatering basket 10. When water supply is performed to a desired water level, the user closes the faucet and stops water supply.

  Next, a washing process on the dehydration tank 5 side is performed. This washing process is performed by the user turning the operation knob 37 for the dehydration / dehydration tank washing timer counterclockwise, for example, to a position of 10 minutes. In the washing process (washing operation) on the side of the dehydration tank 5, the dehydration motor 11 is repeatedly turned on for 3 seconds and turned off for 9 seconds as described above. When the dehydrating motor 11 is on, the dewatering basket 10 is rotated in one direction, and when the dehydrating motor 11 is off, the dehydrating basket 10 is inertially rotated while decelerating. Before the dehydration basket 10 stops, the dehydration motor 11 is turned on next, and the dehydration basket 10 rotates.

  By this washing process, the washing water containing the detergent passes through the laundry B accommodated in the dewatered basket 10 relatively slowly from the inner periphery side to the outer periphery side due to, for example, centrifugal force accompanying rotation. Then, the washing water is repeatedly returned to the dehydrating basket 10 by stopping, and the laundry B is cleaned. For example, when the washing process for 10 minutes is completed, the user switches the water supply destination switching operation knob 39 to the left side (washing tub 4 side). Then, the dewatering tank side drain valve 18 is opened, and drainage is performed from the drain port 16. At the same time, the user rotates the operation knob 37 for the dehydration / dehydration tank washing timer clockwise to perform an intermediate dehydration process for rotating the dehydration basket 10 in one direction at a high speed, for example, for 3 minutes.

  When the intermediate dehydration process for 3 minutes is completed, the user performs water supply after switching the water supply destination switching operation knob 39 to the right side (dehydration tank 5 side) again. In this case, the water supply path 40 is switched to the dehydrating tank 5 side by switching the water supply destination switching operation knob 39 to the right side (dehydrating tank 5 side), and the dewatering tank side drain valve 18 is closed. Thus, water can be stored in the dehydration tank 5. After the end of the water supply, the user turns the operation knob 37 for the dehydration / dehydration tank washing timer counterclockwise, for example, to a position of 5 minutes, so that a rinsing process for 5 minutes is performed. In this rinsing process, the dehydration motor 11 is repeatedly turned on for 3 seconds and turned off for 9 seconds, as in the washing process.

  When the rinsing process for 5 minutes is completed, the user again performs the process of draining, intermediate dehydration for 3 minutes, water supply, and rinsing for 5 minutes in the same manner. However, in the second (final) rinsing process, the finishing agent is charged into the charging case 41 before supplying water. Thereby, water supply is performed while dissolving the finishing agent, and the finishing agent is put into the dewatering tank 5. When the second rinsing process is completed, the user switches the water supply destination switching operation knob 39 to the left side (washing tub 4 side) again and opens the dewatering tub side drain valve 18 in the dehydration / desorption state. The final dehydration process of rotating the dewatering basket 10 in one direction at a high speed is performed, for example, for 5 minutes by rotating the operation knob 37 for the water tank washing timer clockwise.

Thus, each process of washing a large laundry B such as a blanket can be performed only in the dehydration tank 5 without transferring the laundry B in the middle. In the example of FIG. 5, the rinsing process is performed twice, but it may be performed once or repeatedly three or more times. The intermediate dehydration in the rinsing process can be omitted. The time required for each process is merely an example, and it is needless to say that various changes can be made depending on the amount of laundry, the degree of dirt, the user's preference, and the like.

  Thus, according to the two-tub type washing machine 1 of the present embodiment, the following effects can be obtained. That is, in the present embodiment, washing water can be stored in the dewatering tank 5 by supplying water to the dewatering tank 5 while the dewatering tank side drain valve 18 is closed. Then, by operating the operation knob 37 for the dehydration / dehydration tank washing timer counterclockwise, the washing operation on the dehydration tank 4 side can be executed. At this time, the dewatering tank side drain valve 18 is closed in conjunction with the switching of water supply from the washing tub 4 side to the dewatering tank 5 side, so that the dewatering tank side drain valve 18 remains open, that is, the dewatering tank. It is possible to prevent water from being supplied to the dehydration tank 5 in a state where the water is discharged from the water 5.

  As a result, the water supply can be reliably stored in the dewatering tank 5 by switching the water supply by the operation knob 39 for switching the water supply destination, and the washing operation on the dewatering tank 5 side can be executed. In addition, in this embodiment, unlike a so-called semi-automatic two-tank washing machine in which two water supply valves are provided or the water supply valve and the drain valve are controlled by a computer, each process of washing is performed based on manual operation. It is possible to proceed and a relatively simple configuration can be achieved.

  By the way, the washing operation in the dewatering tub 5 (the process of easy washing) can be advanced by rotating the dewatering basket 10 while the washing water is stored in the dewatering tub 5 so that the laundry is immersed therein. Although it is possible, it is not necessary to rotate the dewatering basket 10 at the same speed as the dewatering process, and it is desirable to rotate it slowly. In the present embodiment, the dehydrating motor 11 is intermittently driven in one direction during the dehydrating tub washing operation.

  As a result, the dehydrating motor 11 is intermittently driven in one direction. Therefore, even when the dehydrating motor 11 is off, the water flow can be maintained by inertial rotation of the dehydrating basket 10, and washing ( A water stream having a force suitable for the washing and rinsing process can be obtained. Further, unlike the case where the dehydrating motor 11 is rotated forward and backward, a circuit configuration and control for rotating the dehydrating motor 11 forward and backward are not required, and energy loss is caused by forcibly stopping the dehydrating basket at the time of reversal. It can be lost.

  In this case, during the dewatering tub washing operation, the dewatering motor 11 is repeatedly turned on and off, and the off time (9 seconds) is longer than the on time (3 seconds). A sufficient amount of time can be ensured for the washing water pushed out through the laundry B during rotation to return to the dehydration basket 10 when the dehydration basket 10 is coasting (or stopped). An effect can be obtained.

  Furthermore, in this embodiment, a dehydration / dehydration tub washing timer is provided which serves as both a dehydration tub washing operation timer and a dehydration operation timer, and the dehydration tub washing operation is performed according to the operation direction of one operation knob 37. Since the dehydration operation can be switched, the configuration of the installation space and the like can be simplified and the cost can be reduced as compared with a case where a timer for the dehydration tub washing operation is separately provided.

  In particular, in the present embodiment, the detergent or finishing agent charging case 41 is provided in the middle of the water supply path 40 from the water supply port 38 toward the dehydration tank 5 side. It can be put into the dewatering tub 5, can prevent the concentrated stock solution from being applied directly to the laundry B, and makes it easier for the diluted detergent and finish to spread throughout the laundry B in the dewatering tub 5. be able to. On the dehydrating tub 5 side, water is supplied to the central portion of the dewatering basket 10, so that the laundry B is not only from the upper surface of the laundry, but also from the center hole generated in the laundry by rotation, in the vertical direction of the laundry B However, it is possible to supply water while applying water evenly.

  FIG. 6 shows another embodiment, and an example in which a large laundry B is put in and out of the dehydration basket 10 using a laundry net when performing a washing operation on the side of the dehydration tub 5. Is shown. That is, the washing net 51 shown in FIG. 6A is made of a net-like net cloth that allows water to pass through, and has a bottomed cylindrical bag shape corresponding to the inner shape of the dewatering basket 10. The main body 52 and a circular lid 53 disposed on the upper surface of the main body 52 are connected to each other by a fastener (not shown) so as to be opened and closed.

  In such a laundry net 51, a large laundry B such as a blanket is rolled into a cylindrical shape and previously stored in the main body 52 of the laundry net 51 and covered with a lid 53. In such a state, it may be accommodated in the laundry basket 10. Accordingly, by using the laundry net 51, the laundry B can be easily taken in and out of the laundry basket 10. In addition, the laundry B is not directly rubbed against the dehydrated basket 10, and the laundry B can be washed in a state that is difficult to damage.

  A laundry net 61 shown in FIG. 6 (b) includes a main body portion 62 having a bottomed cylindrical bag shape corresponding to the inner shape of the dewatering basket 10, and a circular lid portion 63 disposed on the upper surface thereof. It is configured to be openable and closable by a fastener that does not. The lid 63 is configured in a mesh shape that allows water to pass therethrough. On the other hand, although the main-body part 62 is comprised from the soft cloth etc., for example, many water flow holes 62a are formed in the outer peripheral wall part. In this case, the water passage hole 62 a is configured to have a smaller total area than the water passage hole 9 formed in the dewatering basket 10. In addition, about the water flow hole 62a, the total area is reduced by the small number of the water flow holes 9 of the dewatering basket 10, one small size, or a different position (pitch) formed. be able to.

  The laundry net 61 is accommodated in the laundry basket 10 in a state where the laundry B is accommodated in the main body 62 so as to be put in and out of the laundry basket 10. At this time, the water passage hole 62a of the main body portion 62 rarely overlaps with the water passage hole 9 of the dehydration basket 10, and the main body portion 62 of the laundry net 61 has a part of the water passage hole 9 of the dehydration basket 10 inside. It is arranged to close from. Thereby, in addition to the effect of easy loading and unloading of the laundry B, the washing water easily stays in the washing net 61 (dehydration basket 10) (is difficult to be discharged from the water passage hole 9), and the washing effect is enhanced. be able to.

  In addition, a two-tub washing machine is not limited to each above-mentioned embodiment, For example, the following expansion and change are possible. That is, in the above embodiment, the dewatering tub side drain valve 18 and the washing tub side drain valve 15 are configured to be mechanically opened and closed by a wire or the like, but are electrically operated by a solenoid, a motor, or the like. A drain valve may be employed. In this case, a switch can be provided on the operation panel, and the drain valve can be opened and closed by the user manually operating the switch.

  In the above embodiment, the dehydrating motor 11 is intermittently driven in one direction during the dehydrating tub washing operation. However, the dehydrating motor 11 may be intermittently driven alternately in the forward and reverse directions. The on / off time limit of the dehydrating motor 11 is merely an example, and it goes without saying that various changes can be made. Furthermore, in the above embodiment, the operation knob 37 for the dehydration / dehydration tub washing timer is provided, but the timer (operation knob) for the dehydration tub washing operation is separated from the timer (operation knob) for the dehydration operation. It may be provided. In addition, it is not always necessary to provide a water supply channel charging case, and a laundry net may be provided as necessary.

  In the drawings, 1 is a two-tub washing machine, 4 is a washing tub, 5 is a dewatering tub, 9 is a water passage hole, 10 is a dewatering basket, 11 is a dewatering motor, 17 is a dewatering drainage pipe (drainage), 18 is a dewatering tank side drain valve, 20 is a dehydration cap, 21 is a drop port, 34 is an operation panel, 37 is an operation knob (operation part) for a dehydration / dehydration tank washing timer, 38 is a water supply port, 39 is a water supply destination switch 40 is a water supply route, 41 is a charging case, 51 and 61 are washing nets, 62a is a water passage hole, and B is a laundry.

Claims (8)

A washing tub and a dewatering tub having a dewatering basket;
In a two-tank washing machine that performs washing operations consisting of washing, rinsing, and dehydration based on manual operation,
A drainage valve on the dehydration tank side that opens and closes the drainage channel of the dehydration tank and can be opened and closed manually.
A water supply switching mechanism for manually switching between water supply to the washing tub from the water supply port and water supply to the dehydration tub;
An operation unit for executing a washing operation on the dehydration tank side,
In conjunction with the water supply switching from the washing tub side to the dewatering tub side by the water supply switching mechanism, the dewatering tub side drain valve is closed. The operation unit comprises an operation knob for operating a timer for a dehydrating tank washing operation,
The dewatering motor for rotating the dehydration basket is intermittently driven in one direction during the dehydration tank washing operation in which the timer for the dehydration tank washing operation is on. Two-tub washing machine.   3. The two-tank laundry according to claim 2, wherein, during the dewatering tub washing operation, the dewatering motor is repeatedly turned on and off, and the off time is longer than the on time. Machine. The dehydration tank washing operation timer is also used as a dehydration operation timer,
The two-tank washing machine according to claim 2 or 3, wherein the dehydrating tank washing operation and the dehydrating operation are switched according to an operation direction of the operation knob.   The two-tank washing machine according to any one of claims 1 to 4, further comprising a detergent or finishing agent charging case in the middle of a water supply path from the water supply port to the dehydration tank side.   The two-tank washing machine according to any one of claims 1 to 5, wherein water is supplied to a central portion of the dewatering basket on the dewatering tub side.   The net according to any one of claims 1 to 6, further comprising: a net for accommodating a large laundry at the time of washing, the laundry net having a size that can be accommodated in and out of the dewatering basket. Two-tub washing machine.   The two-tank washing machine according to claim 7, wherein the washing net is accommodated in the dewatering basket so as to block a part of the water passage hole of the dewatering basket from the inside.

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