JP2016154727A - Twin-tub washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a twin-tub washing machine capable of performing a washing operation on a dewatering tub side.SOLUTION: A twin-tub washing machine of the embodiment includes a washing tub having an agitator and a dewatering tub having a dewatering basket, and it executes a washing operation comprising washing, rinsing and dewatering on the basis of a manual operation. Washing water can be stored in the dewatering tub, and by rotating the dewatering basket in a state where laundry is stored in the dewatering basket, in a state where the washing water is stored in the dewatering tub, the washing operation on the dewatering tub side can be performed. In the dewatering basket, a baffle is provided for generating a water flow, being located on an inner peripheral wall, and for imparting a mechanical force to the stored laundry, and also, a plurality of pieces of water passing holes for communicating the inside and outside of the dewatering basket are provided across the entire vertical direction.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 having a pulsator and a dewatering tub having a dewatering basket, and is configured to perform each step of washing operation including washing, rinsing, and dehydration based on manual operation. ing. This two-tub washing machine is still in demand mainly by elderly people because of the advantage of easy washing. In this two-tub washing machine, the user can proceed with the washing operation in various ways of washing. After the washing (main washing) process, the intermediate dehydration process and the rinsing process are repeated twice, for example, and then the final washing process is performed. Washing methods including an intermediate dehydration process, such as a dehydration process, are widely performed.

  In addition, for the part of the laundry that is heavily soiled, first pre-wash to remove the dirt roughly, and after the intermediate dehydration of the laundry, the entire laundry is put together and washed There is a way to wash. Furthermore, the laundry may be divided into two parts according to the type of cloth, color, etc., and after each washing process, they may be washed together to carry out the process from the rinse (intermediate dehydration). . When performing such pre-washing or separate washing, as shown in FIG. 6 (c), in the conventional two-tub washing machine, the transfer of the laundry between the washing tub and the dewatering tub is repeated many times. Therefore, a relatively troublesome work for the user is required.

  On the other hand, for example, Patent Document 1 discloses a two-tub washing machine that can perform a process of washing and washing a small-capacity laundry on the dehydrating tub side. This two-tub washing machine has a plurality of permeable holes provided in the upper part of a dewatering basket disposed in the dewatering tank, and a plurality of blades extending vertically on the inner peripheral surface of the lower half of the dewatering basket. It is possible to store the water in the lower half of the dewatered basket and perform an easy washing process. Thereby, it is possible to use such a method that pre-washing a heavily dirty laundry is first performed on the side of the dehydrating tub, and the pre-washed laundry is transferred to the laundry tub to perform main washing with other laundry.

Japanese Patent Laid-Open No. 2-161993

  However, in the two-tub washing machine described in Patent Document 1, although the washing process can be performed on the side of the dewatering tank, it is configured to store water only in the dewatering basket. It is impossible to perform washing operation by accumulating water up to a region where water-permeable holes are formed. That is, on the dehydrating tub side, there is a problem that it is limited to washing at a low water level for a small amount of laundry, and for example, a relatively large amount of laundry cannot be washed at a high water level.

  In addition, because it is configured to store water only in the dewatered basket, the dehydrated basket and the water and the laundry move together in a single shape, and relative movement cannot be expected. There was also a problem that sufficient performance could not be obtained.

  Therefore, a two-tank washing machine that can perform a washing operation on the dehydration tank side is provided.

  The two-tank washing machine of the embodiment includes a washing tub having a stirring body and a dewatering tub having a dewatering basket, and performs the washing operation including washing, rinsing, and dehydration based on manual operation. It is possible to store washing water in the tub, and in the state where the washing water is stored in the dehydrating tub, the dehydrating basin is rotated by rotating the dehydrating basket with the laundry stored in the dehydrating basin. The laundry basket is configured to be capable of washing, and the dewatering basket is provided with a baffle that is located on the inner peripheral wall to generate a water flow and to apply mechanical force to the stored laundry, It is characterized in that a large number of water passage holes that allow the inside and outside of the dewatering basket to communicate with each other are provided over the entire vertical direction.

The front view which shows 1st Embodiment and shows the whole structure of a two-tub type washing machine Top view of the operation panel Schematic front view showing three examples of baffle mounting angles for dewatering baskets Schematic top view showing three examples of baffle mounting positions for dewatering baskets The figure which shows the example of the electricity supply circuit of the motor for dehydration regarding the dehydration tank washing operation The figure which shows the example of the process at the time of performing a washing operation in a dehydration tank, and shows the case (a) and the case (b) including pre-washing together with the conventional case (c) The schematic longitudinal cross-sectional view which shows 2nd Embodiment and shows the example of arrangement | positioning of the dehydration cap when a laundry is a small amount Plan view (a) and front view (b) of dehydration cap The third embodiment shows an exploded perspective view (a) and a cross-sectional top view (b) of a joint portion between a dewatering basket and a baffle.

(1) First Embodiment Hereinafter, a first embodiment will be described with reference to FIGS. 1 to 6. 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 stirring body (pulsator) 7 is rotatably disposed at the inner and lower portions. 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, and the stirring body 7 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 stirring member 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 8 for storing laundry is disposed so as to be rotatable about a vertical axis. The dewatering basket 8 is formed, for example, in the shape of a cylindrical container whose upper surface is opened from a synthetic resin material, and a plurality of water passage holes 9 are provided on the peripheral side portion thereof. At this time, the water passage holes 9 are provided over the entire vertical direction of the dewatering basket 8 and also on the bottom surface, so that the inside and outside of the dewatering basket 8 are in communication. Further, as will be described in detail later, a water flow generating baffle 10 is integrally provided on the inner peripheral wall of the dewatering basket 8. A dehydration cap (not shown) is attached to the upper surface opening of the dehydration basket 8.

  In the base 2, a dehydrating motor 11 that rotates the dehydrating basket 8 is provided below the dewatering 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 is energized by an energizing circuit 19 shown in FIG. The rotating shaft 11 a of the dehydrating motor 11 is connected to the shaft 8 a of the dewatering basket 8. Thereby, the dehydrating motor 11 is configured to rotate the dehydrating basket 8 directly. A switch for detecting the opening of the dehydrating lid 33 is provided. When the dehydrating lid 33 is opened, the dehydrating motor 11 is deenergized and the brake device 12 is operated.

  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 as indicated by broken lines in FIG. The washing tub-side drain valve 15 is normally closed and is opened by the wire operation (pulling operation) associated with the rotation operation of the second 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, a first operation knob 35 for a washing timer, a second operation knob 36 for switching water flow and opening / closing a drain valve, and a dehydration / dehydration tank wash. A third operation knob 37 for the timer, a water supply port 38, and a fourth 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 fourth operation knob 39 by the user. That is, as shown in FIG. 2, the fourth operation knob 39 is provided so as to be slidable in the left-right direction. When the fourth operation knob 39 is slid to the left, water is supplied to the washing tub 4 side, and when the fourth operation knob 39 is slid to the right, the dehydration tub 5 side is supplied. Water supply to is performed. Thereby, the water supply switching mechanism is comprised from the switching member etc. which were provided in the 4th operation knob 39 for water supply destination switching, the water supply path | route 40, or the like.

  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 fourth operation knob 39. . Although not specifically shown, the wires are provided in a relationship shown by broken lines in FIG. Thus, when the fourth operation knob 39 is slid to the left side (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 fourth operation knob 39 is slid to the right side (water supply side to the dewatering 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.

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

  The second operation knob 36 is provided so as to be rotatable between three positions of “strong”, “standard”, and “drainage”. By locating the second operation knob 36 at either “strong” or “standard”, the inversion time of the stirring body 7 that forms the water flow at the time of washing (rinsing) in the washing tub 4 is switched, A strong water flow and a weaker standard water flow can be selected. Although not shown in detail, when the second operation knob 36 is positioned at “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 is opened. Drainage from 4 is performed.

  The third operation knob 37 operates a spring type dehydration / dehydration tank washing timer 20 (see FIG. 5) (not shown) provided on the back side of the operation panel 34. The third 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). Yes. As shown in FIG. 5, in the dehydration / dehydration tank washing timer 20, the movable contact 20a is switched to any one of the contacts a, b, and c. When connected to the contact a, the dehydrating motor 11 rotates in the forward direction, and when connected to the contact b, the dehydrating motor 11 rotates in the reverse direction. The contact c is a neutral point, and the dehydrating motor 11 is not energized.

  In this case, in the dehydration operation in which the third operation knob 37 is rotated clockwise, the movable contact 20a of the dehydration / dehydration tank washing timer 20 is connected to the contact a. Thereby, when the dehydrating motor 11 is continuously rotated at a high speed (for example, up to a maximum speed of 2300 rpm), the dewatering basket 8 is rotated at a high speed in one direction, and centrifugal dehydration of the laundry is performed. This dehydration operation is executed for a time set by the dehydration / dehydration tank washing timer 20.

  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 movable contact 20a of the dewatering / dewatering tank washing timer 20 repeats the movement of the contact a, the contact c, the contact b, and the contact c at predetermined time intervals by a cam mechanism (not shown). The normal rotation, stop, reverse rotation and stop of the (dehydration basket 8) at a relatively low speed are repeated for a set time. Specifically, the on / off time limit of the dehydrating motor 11 is, for example, an on time of, for example, 3 seconds and an off time of 9 seconds, which is longer than that. Thus, as will be described later in the description of the operation, a gentle water flow relatively passes through the laundry accommodated in the dewatering basket 8, and washing (rinsing) is performed also on the dewatering tank 5 side. Will be able to.

  Therefore, in the present embodiment, the third operation knob 37 functions as an operation unit for executing the washing operation on the dehydrating tub 5 side. Further, the timer for the dehydration tank washing operation and the timer for the dehydration operation are also used as one dehydration / dehydration tank washing timer 20, and depending on the operation direction of the third operation knob 37, The dehydration operation can be switched.

  As described above, the baffle 10 is provided on the inner peripheral wall of the dewatering basket 8 for generating a water flow in the dewatering tub 5 during the dewatering tub washing operation. In the present embodiment, as shown in FIG. 4A, a plurality of baffles 10, two in this case, are provided at equal intervals (180 degree intervals) in the circumferential direction of the dewatering basket 8. Further, as shown in FIG. 3A, each baffle 10 is provided on the inner peripheral wall of the dewatering basket 8 on the upper side (in the region excluding the lower end side) and extends in the vertical direction. In this case, the extending angle (direction) is in the range of 45 degrees or more and 135 degrees or less with respect to the water surface W, for example, 90 degrees (perpendicular).

  In this case, by providing the baffle 10 at an angle of 90 degrees, as shown by the arrow in FIG. 3A, the water flow generated with the rotation of the dewatering basket 8 is relative to the baffle 10 from the left in the figure. It hits and flows up and down. In addition, as an angle which a baffle extends, it should just be in the range of 45 degree | times or more and 135 degrees or less with respect to the water surface W, and it is 45 degree | times with respect to the water surface W like the baffle 10A of FIG.3 (b), The baffle 10B in FIG. 3C can be set to 135 degrees with respect to the water surface W. In this case, as shown by an arrow in FIG. 3, the water flow generated along with the rotation of the dewatering basket 8 flows relatively obliquely downward or obliquely upward, for example.

  4B shows an example of arrangement when three baffles 10 ′ are provided, and FIG. 4C shows an example of arrangement when four baffles 10 ″ are provided. 3), when three baffles 10 'are provided, they can be provided at intervals of 120 degrees in the circumferential direction of the dewatering basket 8. As shown in FIG. ″ Can be provided at intervals of 90 degrees in the circumferential direction.

  Next, the operation of the above configuration will be described with reference to FIG. In the above-described two-tank washing machine 1, it is possible to carry out a process in which the washing tub 4 is easily washed. That is, in this case, when the user operates the fourth operation knob 39 of the operation panel 34 to the left side (the water supply side to the washing tub 4), the washing tub-side drain valve 15 is closed, and the washing Water can be stored in the tank 4. At this time, the dewatering tank side drain valve 18 is opened.

  Then, the user selects the water flow strength (“strong” or “standard”) by operating the second operation knob 36 in a state where the laundry, the necessary detergent, etc. are put into the washing tub 4, and The washing timer is operated by operating the first operation knob 35. Thereby, the stirring body 7 is driven by the washing motor 28, and the washing process (and the rinsing process) for the set time can be performed. After the process, when the user operates the second operation knob 36 to “drainage”, the washing tub side drain valve 15 is opened and the washing tub 4 is drained.

  On the other hand, in the dehydration tank 5, a dehydration process can be performed. This dehydration process is performed when the fourth operation knob 39 is on the left side (water supply side to the washing tub 4) and the dewatering tub side drain valve 18 is open. The user performs a dehydration operation of rotating the dehydration basket 8 in one direction at a high speed by rotating the third operation knob 37 in the clockwise direction while the laundry is in the dehydration basket 8. 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.

  In the present embodiment, the dehydration tank 5 can perform a washing operation (a washing process or an excessive process for the laundry in the dehydration basket 8). In performing the dewatering tank side washing operation, the user operates the fourth operation knob 39 to the right side (the water supply side to the dewatering tank 5), so that the dewatering tank side drain valve 18 is closed. The water (washing water) can be stored in the dewatering tank 5 by opening the tap and supplying water. In this case, the user can store the washing water at an arbitrary water level. In addition, by supplying a necessary detergent in the introduction case 41 in the middle of the water supply path 40 in advance, water is supplied while dissolving the detergent.

  Thereafter, the user rotates the third operation knob 37 in the counterclockwise direction to a position for a desired time (for example, 10 minutes), so that the washing process (or the rinsing process) on the dehydration tank 5 side is performed. ) Is executed. In the washing operation on the side of the dewatering tank 5, as described above, the dewatering motor 11 is repeatedly turned on for 3 seconds (forward rotation), off for 9 seconds, on (reverse rotation) for 3 seconds, and off for 9 seconds. When the dehydrating motor 11 is turned on, the dewatering basket 8 is rotated in one direction, and when the dehydrating motor 11 is turned off, the dehydrating basket 8 rotates by inertia while decelerating. Before the dehydration basket 8 stops, the dehydration motor 11 is turned on next, and the dehydration basket 8 rotates.

  By this washing process, the washing water containing the detergent passes relatively slowly from the inner peripheral side to the outer peripheral side by the centrifugal force accompanying rotation, for example, with respect to the laundry stored in the dehydration basket 8. The laundry is repeatedly returned to the dehydration basket 8 by stopping, and the laundry is cleaned. When the washing process ends, the user switches the fourth 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. The rinsing process can be performed similarly.

  At this time, the washing water is stirred by rotating the dehydration basket 8 with respect to the washing water that is stationary in contact with the fixed dehydration tank 5. In addition, since the laundry inside is pushed relative to the washing water by the baffle 10 of the rotating dewatering basket 8, the effect of being easy to wash can be sufficiently obtained. Further, the baffle 10 causes water to be more strongly perturbed and a complicated water flow is generated, and at the same time, a rubbing effect by the laundry coming into contact with the baffle 10 can be obtained, and the effect of being easy to wash. Can be high. By setting the direction in which the baffle 10 extends to 90 degrees with respect to the water surface W, the force for stirring water can be increased. Since the dewatering basket 8 rotates forward and backward, different water flows can be generated during forward rotation and reverse rotation, and a more complicated water flow can be obtained. Since the baffle 10 is provided only on the upper side of the inner peripheral wall of the dewatering basket 8, different water flows are generated between the upper and lower portions in the dewatering basket 8, and the agitation effect is improved by complication of the water flow. Can do.

  Here, FIG. 6 shows an example of the process when performing the washing process on the dehydrating tank 5 side, particularly when performing the process of intermediate dehydration between the washing process and the rinsing process and between the rinsing processes. Show. Fig. 6 (a) shows that the laundry is divided into two parts according to the type of cloth, color, etc., and after each washing process, they are put together to perform the process from rinsing (intermediate dehydration). It shows an example of the process when performing. FIG. 6 (b) shows that a part of the laundry that is heavily soiled is first pre-washed to remove dirt roughly, and after the intermediate dehydration of the laundry, the entire laundry is put together. An example of a process when performing a main cleaning process is shown.

  First, the separate washing process will be described with reference to FIG. In this case, the laundry is divided into a first group in which the washing process is performed in the washing tub 4 and a second group in which the washing process is performed in the dewatering tank 5, and the laundry is put into the washing tub 4 and the dehydration basket 8, respectively. First, the fourth operation knob 39 is set to the left side (washing tub 4 side), and water is supplied to the washing tub 4 up to a desired water level (and detergent is charged). Next, the fourth operation knob 39 is set to the right side (dehydration tank 5 side), and water is supplied to the dehydration tank 5 to a desired water level (and the detergent is charged).

  Next, the user can operate the first operation knob 35 to operate the washing timer and execute the washing process in the washing tub 4 for a desired time. At the same time, the user can rotate the third operation knob 37 counterclockwise so that the washing process on the dehydration tank 5 side can be executed for a desired time. At this time, the washing process on the washing tub 4 side and the washing process on the dehydration tub 5 side can be performed simultaneously in parallel. When the washing process in the washing tub 4 and the dehydration tub 5 is completed, the user drains the two tubs 4 and 5 and removes the first group of laundry put in the washing tub 4 into the dehydration tub 5 (dehydration basket 5). 8) so that the entire laundry is stored in the dewatering basket 8.

  Then, the user rotates the third operation knob 37 clockwise to cause the intermediate dehydration process in the dewatering tank 5 to be executed, for example, for only a few minutes. When the intermediate dehydration process is completed, the user performs water supply after switching the fourth operation knob 39 to the right side (dehydration tank 5 side). After the end of water supply, the user turns the third operation knob 37 in the counterclockwise direction, so that the rinsing process is performed. When the rinsing process is completed, the user again executes the processes of draining, intermediate dewatering, water supply, and rinsing in the same manner. However, in the second (final) rinsing process, the finishing agent can be put into the dehydrating tank 5 by putting the finishing agent into the charging case 41 before supplying water.

  When the second rinsing process is completed, the user switches the fourth operation knob 39 to the left side (the washing tub 4 side) again, and the dehydration tub side drain valve 18 is opened, and the dehydration / dehydration tub washing is performed. By rotating the timer operation knob 37 in the clockwise direction, the final dehydration process of rotating the dehydration basket 8 in one direction at a high speed can be executed. As a result, it is possible to perform separate washing only by transferring the laundry once.

  Next, the process including pre-washing will be described with reference to FIG. First, a washing process is executed on the side of the dehydrating tub 5 for a part of the laundry that is heavily soiled. In this case, the heavily soiled laundry is put into the dehydration basket 8, the fourth operation knob 39 is set to the right side (dehydration tank 5 side), and water is supplied to the dehydration tank 5 to a desired water level (and detergent is added). By rotating the third operation knob 37 in the counterclockwise direction, the washing (pre-washing) process on the dehydration tank 5 side can be executed for a desired time. When the pre-washing process is completed, the fourth operation knob 39 is operated to the left to perform drainage, and the third operation knob 37 is rotated clockwise to execute the intermediate dehydration process.

  Then, the remaining laundry is put into the washing tub 4, and the laundry in the dewatering basket 8 after intermediate dehydration is moved to the washing tub 4. Then, a washing (main wash) process for the entire laundry is performed on the washing tub 4 side. When the main washing process is completed, the entire laundry in the washing tub 4 is transferred to the dehydration tub 5 (dehydration basket 8), and the steps of intermediate dehydration, rinsing, intermediate dehydration, rinsing, and final dehydration are sequentially performed. As a result, when a washing operation including pre-washing is performed, it is possible to transfer the laundry twice. In each process described above, the process of intermediate dehydration and rinsing is not limited to two times, and may be performed once or three or more times. It is also possible to omit intermediate dehydration.

  Thus, according to the two-tub type washing machine 1 of the present embodiment, the following effects can be obtained. That is, 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 third operation knob 37 in the counterclockwise direction, the dewatering basket 8 can be rotated at a relatively low speed, and the washing operation (washing and rinsing process) on the dehydrating tank 4 side can be executed. . Therefore, after the washing process at the dehydration tank 5 side, the intermediate dehydration process and the rinsing process can be performed while the laundry is stored in the dehydration basket 8, and the final dehydration process can be performed. it can. That is, by using the dehydrating tank 5, it is possible to proceed each washing process while minimizing the transfer of the laundry.

  At this time, since the baffle 10 is provided on the inner peripheral wall of the dewatering basket 8, the laundry comes into contact with the baffle 10 (rubbing effect), and the laundry is pressed against the washing water by the baffle 10 relative to the washing water. The movement is activated, and the baffle 10 itself also disturbs the water to generate a complex water flow, so that the overall effect of being easy to wash can be enhanced. And when performing the process of washing and rinsing in the dehydration tank 5, the inside and outside of the dehydration basket 8 communicate with each other through the water passage hole 9, and the water is stored in the dehydration tank 5. It is possible to perform an easy washing process, and it is possible to perform a washing operation on the side of the dewatering tank 8 even when the amount of laundry is relatively large.

  In particular, in the present embodiment, providing a plurality of baffles 10 can enhance the effect of easy washing. At that time, since the baffle 10 is provided on the inner peripheral wall of the dewatering basket 8 at equal intervals in the circumferential direction, it is possible to suppress unbalance when the dewatering basket 8 rotates at high speed. Since the angle of the baffle 10 extending in the vertical direction is within the range of 45 degrees or more and 135 degrees or less with respect to the water surface W, the force for stirring the water can be increased to 90 degrees or tilted to some extent. As a result, a flow can also be generated in the vertical direction.

  Further, in the present embodiment, since the forward and reverse rotation of the dewatering basket 8 is repeated at the time of the dewatering tub side washing operation, washing and rinsing processes are performed with a more complicated water flow compared to the case of one-way rotation. be able to. Since the baffle 10 is provided on the upper side of the inner peripheral wall of the dewatering basket 8, different water flows are generated between the upper and lower portions in the dewatering basket 8, and the stirring effect is improved by making the water flow more complicated. Can be achieved.

(2) Second and Third Embodiments and Other Embodiments FIGS. 7 and 8 show a second embodiment. In this embodiment, the dehydration cap 21 is provided so as to cover the laundry W in the dehydration basket 8. That is, the dehydration cap 21 as a whole has a deformable plastic disk shape having a flexible diameter that fits into the inner peripheral portion of the dehydration basket 8.

  As shown in FIG. 8 (a), notches 22 and 22 for escaping the baffles 10 and 10 are formed on the outer periphery of the dehydrating cap 21, and the dewatering basket 8 is inserted from the top opening to the inside. It can be arranged. In addition, the plate surface of the dehydration cap 21 is formed with a relatively large water passage hole 21a at the center and a plurality of relatively small water passage holes 21b around the periphery. A plurality of convex portions 23 are provided on one surface of the dehydration cap 21 (the downward surface in FIGS. 7 and 8) so as to protrude downward. The other surface side of the dehydration cap 21 is a flat surface.

  At the time of the dewatering tub side washing operation, as shown in FIG. 7, the dewatering cap 21 is used with its one surface (surface on which the convex portion 23 is provided) facing downward. Thereby, the effect of the rubbing washing between the convex part 23 of the dehydration cap 21 and the laundry W can be expected, and a more effective dehydration tank side washing operation can be executed. In this case, since the dewatering cap 21 can be disposed as far as the lower side of the dewatering basket 8, even in the case of a small amount of laundry W, the effect of rubbing with the laundry W can be obtained.

  Although not shown, during the dehydration operation in the dehydration tank 5, the dehydration cap 21 is used with the top and bottom inverted from FIG. 7, that is, with the flat surface facing downward. By placing the dehydration cap 21 on the upper surface side of the laundry in the dehydration basket 8 with the flat surface facing downward, the dehydration process can be performed while the laundry W is being pressed. In this case, it is possible to avoid the protrusion 23 from getting in the way or reducing the volume of the dewatering basket 8.

  FIG. 9 shows a third embodiment. The third embodiment is different from the first embodiment in that a plurality of baffles 52 are detachably attached to the dewatering basket 51. That is, the peripheral wall portion of the dewatering basket 51 is provided with mounting holes 53 (only one location is shown) at two locations above and below one baffle 52. The mounting hole 53 is formed in a substantially T shape, and has a wide rectangular portion 53a that is wide in the lateral direction (circumferential direction) located on the upper side, and a narrow locking portion 53b that extends downward from the central portion thereof. And continuously. Although not shown in detail, the dewatering basket 51 is provided with water passage holes 9 throughout.

  On the other hand, a baffle 52 made of, for example, a synthetic resin provided separately from the dewatering basket 51 has a shape that is long in the vertical direction, and a mounting hole 53 is provided on the back surface (the surface that contacts the inner peripheral wall of the dewatering basket 51). The connecting portions 54 (only one portion is shown) are integrally provided at two upper and lower portions corresponding to the above. The connecting portion 54 integrally includes a protruding shaft portion 54a on the back side and a wide flange portion 54b located at the rear end of the shaft portion 54a. The flange portion 54b passes through the wide portion 53a, but has a larger width dimension than the locking portion 53b. The shaft portion 54a has a length (slightly long) corresponding to the thickness dimension of the peripheral wall of the dewatering basket 51, and has a width dimension (slightly narrow) that can be locked to the locking portion 53b.

  In this configuration, when the baffle 52 is attached to the dewatering basket 51, the baffle 52 is disposed inside the dehydration basket 51, and the flange portion 54b of the connecting portion 54 is connected to the wide portion 53a of the mounting hole 53 from the inside to the outside. To pass through. Next, the baffle 52 is slid downward, and the shaft portion 54 a of the connecting portion 54 is locked so as to be fitted into the locking portion 53 b of the mounting hole 53. This operation (connection of the connecting portion 54 to the mounting hole 53) is performed simultaneously at the two upper and lower positions. Thus, as shown in FIG. 9B, the baffle 52 is attached to the dewatering basket 51 in a retaining state. When removing the baffle 52 from the dewatering basket 51, an operation reverse to the above may be performed.

  According to such 3rd Embodiment, it becomes possible to remove the baffle 52 with respect to the dehydration cage | basket | car 51, and when it is required, it can mount | wear and can remove. Thereby, at the time of the dehydrating tub side washing operation, a favorable washing operation by the action of the baffle 52 can be performed by setting the baffle 52 to be attached. Further, by removing the baffle 52 at the time of dehydration, it is possible to prevent the baffle 52 from obstructing the dehydration process (the volume is reduced or rubbed).

Furthermore, it is possible to share a dewatering basket with a model that does not have a dewatering tank side washing operation function.
In addition, various deformation | transformation are possible as a structure for attaching a baffle to a dehydration basket so that attachment or detachment is possible. For example, a slide groove extending in the vertical direction is provided on the dewatering basket side, a long slide rail in the vertical direction that engages with the slide groove is provided on the separate baffle side, and the slide rail of the baffle is connected to the slide groove. A configuration is also conceivable in which it is inserted from above and slid in the vertical direction and attached in a laterally secured state.

  In addition, the two-tub washing machine is not limited to the above-described embodiments, and can be expanded and changed as follows, for example. 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 each of the above embodiments, the dehydrating motor 11 is intermittently driven in the forward and reverse directions during the dehydrating tub washing operation. However, the dehydrating motor 11 can be intermittently driven in one direction. 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 20 is provided. However, the timer (operation knob) for the dehydration tub washing operation is referred to as the dehydration operation timer (operation knob). It may be provided separately. In addition, it is not always necessary to provide an input case for the water supply path, and can be implemented with appropriate modifications within a range not departing from the gist.

  In the drawings, 1 is a two-tub washing machine, 4 is a washing tub, 5 is a dewatering tub, 7 is a stirring body, 8 is a dewatering basket, 9 is a water passage hole, 10 is a baffle, 11 is a motor for dewatering, and 17 is dewatering. Side drainage pipe, 18 is a dewatering tank side drain valve, 19 is an energizing circuit, 20 is a dehydration / dehydration tank washing timer, 34 is an operation panel, 37 is a third operation knob, 38 is a water supply port, and 39 is a fourth. Operation knob 40, water supply path 21, dewatering cap 22, notch portion 23, convex portion 23, dehydration basket 51, baffle 52, mounting hole 53, and connection portion 54.

Claims (10)

A washing tub having a stirring body, 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,
Washing water can be stored in the dewatering tub, and the dewatering basket is rotated while the laundry is stored in the dewatering basket while the washing water is stored in the dewatering basin. The tank side washing operation is configured to be possible,
The dewatering basket is provided with a baffle that is located on the inner peripheral wall and generates a water flow and applies mechanical force to the stored laundry, and a plurality of passages that communicate the inside and outside of the dewatering basket. A two-tub washing machine, wherein water holes are provided over the entire vertical direction.   The two-bath washing machine according to claim 1, wherein a plurality of the baffles are provided in the dewatering basket.   The two-bath washing machine according to claim 2, wherein the plurality of baffles are provided on the inner peripheral wall of the dewatering basket at equal intervals in the circumferential direction.   The said baffle is provided in the inner peripheral wall of the said dewatering basket so as to extend in the vertical direction, and the extending angle is in the range of 45 degrees or more and 135 degrees or less with respect to the water surface. The two tank type washing machine as described in any one of.   The two-bath washing machine according to any one of claims 1 to 4, wherein the baffle is detachably attached to the dewatering basket.   A disk-shaped dehydration cap is detachably disposed in the upper surface opening of the dehydration basket, and a convex portion is provided on one surface of the dehydration cap. The two-tub washing machine according to any one of claims 1 to 5, wherein the washing machine is usable as a lower surface side.   7. The two-tank washing machine according to claim 6, wherein the other surface side of the dehydration cap is a flat surface, and the flat surface can be used as a lower surface side during dehydration operation.   The dewatering cap is formed with a notch for escaping the baffle, and is configured to be inserted and arranged from the upper surface opening of the dewatering basket to the inside. 7. The two-tank washing machine according to 7.   The two-tank washing machine according to any one of claims 1 to 8, wherein the dehydrating basket is rotated forward and backward during the dehydrating tub side washing operation.   The two-bath laundry machine according to any one of claims 1 to 9, wherein the baffle is provided on an upper side of an inner peripheral wall of the dewatering basket.

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