JP6548872B2 - Washing machine - Google Patents

Description

  Embodiments of the present invention relate to a washing machine.

  Conventionally, in the so-called vertical axis type washing machine, the washing body is rotated in the vertical direction with the axial direction up and down (longitudinal), and the stirring body disposed at the inner bottom portion of the washing tank is rotated for washing. Because of the relationship, the method of putting the laundry in the net bag and washing is used to wash the laundry which is easily deformed or damaged.

  In order to wash delicate laundry, the inside of the washing tub is divided up and down by the partition plate above the stirring body, and the laundry is washed with the water flow by the rotation of the stirring body below and with the stirring body. While washing is performed by applying mechanical force by contact, in the upper side, washing is performed only by water flow by rotation of the agitator without applying mechanical force by contact with the agitator (for example, Patent Document 1) reference).

  Furthermore, to wash the laundry, which is also delicate, wash the laundry with the water flow by the rotation of the stirring body under the partition which divides the inside of the washing tub above the stirring body, and the machine by contact with the stirring body. In the upper part, the washing is not given mechanical force by the contact with the stirring body while washing is given, and the water fried from the lower part of the washing tub is sprinkled and showered from above. (See, for example, Patent Document 2).

JP 2004-159973 A JP-A-9-94376

According to the conventional method of putting laundry in a net bag and washing it, although it is avoided that the laundry gets entangled with other laundry, it is not so effective in preventing deformation.
On the other hand, in the case described in Patent Document 1, not only the laundry to be washed below the partition plate but also the laundry to be washed above is particularly located near the water surface because it is immersed in the washing water in the washing tank. The problem is that lint (lint), which tends to float and collect on the surface of the water, adheres to the laundry to be washed, and the washing effect is impaired.

  Moreover, in the thing of patent document 2, the lint contained in the water fried from the lower part of the washing tank adheres easily by continuing to be applied to the laundry wash | cleaned above the partition plate, and the problem that the washing effect is also impaired. I had a point.

  Therefore, the present invention provides a washing machine which can wash without causing the laundry to be deformed and without the reduction of the washing effect due to the adhesion of lint.

The washing machine according to the present embodiment includes a washing tub having a vertical axis shape, a stirring body disposed at an inner bottom portion of the washing tub, a driving device for rotationally driving the stirring body, and the stirring body inside the washing tub. A partition plate installed to partition the inside of the washing tub above and below, and a water passage provided from a position below the partition plate of the washing tub to a position above the partition plate, the partition plate A water passage having an outlet at an upper position, a circulation device for circulating water from the outlet above the partition through the water passage into the washing tank, and the water passage A filter provided to capture lint from passing water, a water supply device for supplying water into the washing tub, a water level detection means for detecting the water level in the washing tub, and a control means for controlling the operation of the washing machine , And the control means is for detecting the water level Based on the stage of the detection result, the water supply level during washing activating the circulation device and the driving device while using the partition plate, of the water by the operation a water level of the position of the lower than the partition plate The water supply device is controlled so that the water level does not reach the laundry on the partition during circulation, and the laundry below the partition is washed with the water flow of the stirring body driven by the drive. It is characterized in that it is configured to wash the laundry on the partition plate with water from the outlet which is circulated by the circulation device.

Longitudinal section of the main part which shows the feature operation of a 1st embodiment Longitudinal side view of the entire washing machine Flow chart showing the execution contents of the delicate course FIG. 1 equivalent view showing a second embodiment FIG. 1 equivalent view showing a third embodiment

Hereinafter, the first embodiment will be described with reference to FIGS. 1 to 3.
First, FIG. 2 shows the entire configuration of the washing machine, in which the outer case 1 is used as an outer shell, and a plurality of water tanks 2a (only one is shown) in the outer case 1 The elastic support mechanism 3 mainly composed of the springs 3b respectively mounted on the suspension rods 3a elastically supports swingably in a state of the vertical axis.

  Inside the water tank 2a, the rotating tank 2b is disposed on the longitudinal axis concentric with the water tank 2a, and the washing tank 4 is configured by the rotating tank 2b and the water tank 2a. The washing tank 4 has a vertical axis, and a large number of holes 5 for dewatering are formed on the circumferential side of the rotating tank 2b, and the upper edge of the rotating tank 2b is mounted with, for example, a liquid balancer type rotating balancer 6 There is.

  A pump chamber 7 is formed in a concave shape at the bottom of the rotation tank 2b, and the lower half of the stirring body 8 is accommodated in the pump chamber 7 and the inner bottom of the rotation tank 2b (the inner bottom of the washing tank 4) The stirrer 8 is disposed at The stirring member 8 is a disk-like member, and has a plurality of stirring blades 8a radially (only one is shown) on the upper surface portion which is the front side, and a plurality (two only) of the pump blades 8b radially similarly to the lower surface portion which is the back side. In addition, a plurality of water passage holes 8c (only two are also shown) are provided in the base portion between them.

  The pump chamber 7 accommodates the pump blades 8b of the agitating body 8. An outlet 7a is formed at one location (the rear in the figure) of the circumferential side of the pump chamber 7, and from above the outlet 7a A water passage 9 is provided at one location on the circumferential side of the rotary tank 2b (also at the rear in the figure). More specifically, the water passage 9 is formed by covering one of the circumferential side portions of the rotary tank 2b with the vertically long water passage cover 10, and the filter 11 is attached to the middle portion near the upper portion. Although not shown in detail, the filter 11 captures lint from the wash water passing through the water passage 9 as described later.

  Furthermore, at the upper end portion of the water passage 9, the water spout 12 is formed by drilling in the water passage cover 10. The water spout 12 spouts water passing through the water passage 9 downward in the rotation tank 2b in a shower shape (see FIG. 1).

  The drive device 13 is disposed below the bottom of the water tank 2a. Although not shown in detail, the drive device 13 mainly includes a motor, and is configured to rotate the rotation tank 2 b and the stirring body 8 directly and selectively. In addition, a drainage port 14 is formed at the bottom of the water tank 2a, and a drainage device 17 including a drainage valve 15 and a drainage hose 16 is disposed below the water tank 2a following the drainage port 14 . Further, an air trap 18 for detecting the water level in the water tank 2a is juxtaposed in the drainage port 14 portion.

  On the other hand, a ring-shaped water tank cover 19 is attached to the upper end of the water tank 2a, and the water tank cover 19 is provided with an inner lid 20 for opening and closing the opening of the central part thereof. Further, a top cover 21 is attached to the upper end of the outer box 1 located above the water tank cover 19, and the top cover 21 has a laundry entrance 22 at the center, and the laundry In this case, the entrance 22 is opened and closed by a two-fold outer lid 23.

At the rear of the top cover 21, a water supply device 27 comprising a water supply case 24 having a water supply valve 24, a detergent input unit communicating therewith, and a connection hose 26 for connecting the water supply case 25 to the water tank 2a In addition, a water level sensor 28 which is a water level detecting means for detecting the water level in the water tank 2a (in the washing tank 4) in series with the air trap 18 is disposed.
A control means is provided on the top of the top cover 21 at the top to control the operation of the washing machine. A control device 30 mainly composed of a computer is disposed.

  The partition plate 31 can be installed inside the rotary tub 2b (inside the washing tub 4). The partition plate 31 has a large number (only a part of which is shown) of water flow holes 32 throughout the entire area, and additionally has a weight 33 on the back surface to prevent floating in water. A partition plate mounting portion 34 is formed on the inner peripheral portion of the intermediate portion above the stirring body 8 of the rotary tank 2b with respect to the partition plate 31, and the partition plate 31 is mounted on the partition plate 31. It can be placed horizontally on the inside of the rotary tank 2b by being placed on the portion 34, and in the installation state, the inside of the rotary tank 2b is divided up and down above the stirring body 8. Further, in the installed state, the water passage 9 extends from a position below the partition plate 31 of the rotary tank 2b (washing tank 4) to a position above the partition plate 31.

Next, the operation of the washing machine having the above configuration will be described.
In the washing machine of the above configuration, the washing and dewatering steps can be sequentially and automatically selected or executed in order by the operation with the operation keys of the operation panel 29, and further, delicate laundry and It is designed to be able to select and execute a separate washing course suitable for washing separately from the other laundry.

In the separate washing course, after the non-delicate laundry A (see FIG. 1) is introduced into the rotary tank 2b, the partition plate 31 is installed, and thereafter the delicate laundry B (see FIG. 1) is installed on the partition plate 31. Throw in
FIG. 3 shows the contents of execution of the separate washing course, and when the operation of the same course is started (S1), the amount of laundry is first detected (S2). The detection of the amount of laundry in the separate washing course is performed for the laundry A located below the partition plate 31.

Next, the water supply level is determined according to the detected amount of laundry (S3). Although this determination of the water supply level is effective in the subsequent rinse, at this time, the detected amount of laundry interferes with the normal installation of the partition plate 31 (placement on the partition plate placement portion 34) If it is a quantity, it is preferable to notify an abnormality.
Next, the amount of detergent corresponding to the determined water level is displayed (S4), and after the detergent is set in the detergent input portion of the water supply case 25, water supply by the water supply device 27 is started (S5). After the start of water supply, the stirrer 8 is rotated in a mode suitable for dissolving the detergent to dissolve the detergent in the supplied water (S6).

  After this, the water level in the water tank 2a is detected by the water level sensor 28 (S7). In this case, the water supply is stopped by the detection at a position below the partition plate 31 (S8). That is, in this separate washing course, the water supply level in the water tank 2a (the water supply level in the washing tank 4) when washing the laundry items A and B as described below is lower than the partition plate 31 in the rotating tank 2b. The position is controlled. Therefore, at this time, the control device 30 functions as a water level control means.

  Subsequently, the agitator 8 is rotated in a mode suitable for washing the laundry A located below the partition plate 31 to wash the laundry A (S9). As a result, the laundry A is washed with the water flow caused by the rotation of the stirring body 8 and is also washed by mechanical force such as contact with the stirring body 8 or contact with the inner peripheral surface of the rotating tub 2b in a stationary state.

  After this, the stirring body 8 is rotated in a mode in which the driving time is longer than that described above (S10). By the rotation of the pump blade 8b accompanying the rotation of the agitating body 8 in this long mode of driving time, the water in the rotary tank 2b is sucked into the pump chamber 7 through the water flow hole 8c at a position below the partition plate 31. From the outlet 7a of the pump chamber 7 through the water passage 9 to pass through the filter 11 and, as shown in FIG. 1, from the water spout 12 to the lower inside of the rotary tank 2b at a position above the partition plate 31 Water is repeatedly circulated in the form of shower. Thus, the pump blades 8 b and the pump chamber 7 constitute a circulating device for circulating the water in the washing tank 4 through the water passage 9, and the delicate laundry B located on the partition plate 31 is the circulating device It receives a shower-like water spray and is washed as you push and wash.

Further, at this time, the laundry A located below the partition plate 31 is also washed with the water flow by the rotation of the stirring body 8, and in contact with the stirring body 8 or in contact with the inner peripheral surface of the rotating tub 2b in a stationary state. Lint is produced from the laundry A by the washing due to the mechanical force of the like. At the same time, the lint is also released from the laundry A by the washing in the front (S9), and it is added to the lint that has been released in the above step (S10). Then, those lints pass through the water passage 9 along with the water that is drawn up from the pump chamber 7 through the water passage 9, but are captured by the filter 11 in the process of passing through the filter 11.
Therefore, the laundry B which is received and washed from the water spouted in the form of a shower from the water spout 12 at a position above the partition plate 31 will not be linted.

Thereafter, the drainage device 17 drains water from the water tank 2a and the rotation tank 2b (S11), and then the rotation tank 2b is rotated at high speed for a time corresponding to the detection result of the amount of laundry. And B are centrifugally dewatered (S12), and thereafter water supply by the water supply device 27 is started (S13).
Then, the water level sensor 28 detects the water level in the water tank 2a (S14). In this case, the water level is stopped when the water level enough to reach the laundry B on the partition plate 31 is reached (S15) .

After that, the agitator 8 is rotated in a mode suitable for rinsing the laundry A located below the partition plate 31 of the tip (S9) to rinse the laundry A (S16). At this time, a weak water flow accompanying the rotation of the agitating body 8 is generated through the water flow holes 32 of the partition plate 31 above the partition plate 31, so the laundry B located above the partition plate 31 is also suitable for delicate fabric It is washed away by the cold water.
Thereafter, the drainage device 17 drains water from the water tank 2a and the rotation tank 2b (S17), and then spins the laundry A and B by rotating the rotation tank 2b at high speed (S18). The operation ends (S19).

  As described above, in the present embodiment, the water in the washing tank 4 below the partition plate 31 is passed through the water passage 9 at the time of washing (division wash course) in which the inside of the washing tank 4 is partitioned by the partition plate 31 up and down. The shower B is sprinkled in the form of a shower on the laundry B placed on the partition 31 from above the partition 31 so that the laundry B can be washed without being deformed. .

  In particular, the water passage 9 is provided with a filter 11 so as to capture lint from the water passing through the water passage 9. Thereby, it is located under the partition plate 31 and comes out of the laundry A which is washed by mechanical force by contact with the water flow by the rotation of the stirring body 8 and with the stirring body 8 or contact with the inner peripheral surface of the rotary tank 2b. The lint is captured by the filter 11 and substantially prevented from being applied to the laundry B on the partition plate 31.

Further, in the present embodiment, the water level in the washing tub 4 at the time of washing is controlled to a position below the partition plate 31 in the washing tub 4 in the separate washing course. Thereby, the water (washing water) in the washing tank 4 does not reach the laundry B on the partition plate 31 and comes out of the laundry A below the partition plate 31 and floats in the water, particularly the water surface portion The lint does not reach the laundry B on the partition plate 31.
Thus, in the present embodiment, it is possible to wash without causing the laundry B to be deformed and without a decrease in the washing effect due to the adhesion of lint.

  In addition, in the present embodiment, a circulating device for circulating the water in the washing tub 4 through the water passage 9 and sprinkling the laundry B on the partition plate 31 in a shower shape is provided on the back side of the stirring body 8 It comprises the pump blade 8b and the pump chamber 7 which is formed at the bottom of the rotation tank 2b and accommodates the pump blade 8b, and thereby the necessary circulating device is configured by devising the essential components of the washing machine. It is possible and reasonable.

  4 and 5 show the second and third embodiments. The same reference numerals as in the first embodiment denote the same parts as in the first embodiment, and a description thereof will be omitted. I will mention only the part.

Second Embodiment
In the second embodiment shown in FIG. 4, the water passage 41 instead of the water passage 9 of the first embodiment extends from the bottom to the upper portion of the water tank 2a (from the position below the partition plate 31 of the washing tank 4 to the partition plate 31) A conduit is provided outside the water tank 2a, and a pump 42 is provided in the middle (at the bottom side of the water tank 2a) as a circulation device replacing the circulation device of the first embodiment. Therefore, in this case, the pump 42 is provided outside the rotary tank 2b.
In this way, it is possible to obtain an effect that the necessary water circulation in the rotary tank 2b can be performed only by attaching the pump 42 outside the rotary tank 2b.

Further, in this case, a filter 43 replacing the filter 11 of the first embodiment is provided on the upstream side of the water passage 41 from the pump 42 (bottom side of the water tank 2a).
By doing so, not only can lint be applied to the laundry B on the partition plate 31 but also intrusion of lint into the pump 42 can be prevented, and failure due to lint clogging of the pump 42 can be prevented. And can prevent the occurrence of problems.

Furthermore, in this case, the drainage hose 16 which is a drainage path is branched from the filter 43 portion of the water channel 41, and the filter 43 is provided on the upstream side of the drainage path (bottom side of the water tank 2a) by this configuration. There is.
In this way, it is possible to prevent entry of lint into the drainage path, and to prevent the occurrence of problems such as clogging of the drainage path lint.

Third Embodiment
In the third embodiment shown in FIG. 5, the filter 51, which is also replaced with the filter 43 described above, is provided at a position downstream of the pump 42 of the water passage 41 and just before the outlet 41 a of the water passage 41.
By doing this, the laundry B on the partition plate 31 can be prevented from being covered with lint, and in particular, maintenance such as removal of the lint captured by the filter 51 can be facilitated by the user. You can get the effect that

The washing machine explained above is not limited only to the above-mentioned embodiment, and it can change suitably and can carry out within the range which does not deviate from a gist.
Besides, while several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

  In the drawing, 4 is a washing tub, 7 is a pump chamber (circulation device), 8 is a stirrer, 8b is a pump blade (circulation device), 9 is a water flow passage, 11 is a filter, 13 is a drive device, 27 is a water supply device, 28 is a water level sensor (water level detection means), 30 is a controller (water level control means), 31 is a partition plate, 41 is a water passage, 41 a is an outlet of the water passage, 42 is a pump (circulation device), 43 is a filter, 51 shows a filter.

Claims (5)

The vertical axis of the washing tank,
A stirrer disposed at the inner bottom of the washing tub,
A driving device that rotationally drives the stirring body,
A partition plate installed inside the washing tub so as to divide the inside of the washing tub above and below the stirring body;
A water passage provided from a position below the partition plate of the washing tub to a position above the partition plate, the water conduit having an outlet portion at a position above the partition plate;
A circulation device for circulating water from the outlet portion above the partition plate into the washing tank through the water passage;
A filter provided to capture lint from the water passing through the water flow path;
A water supply device for supplying water into the washing tub;
A water level detection means for detecting the water level in the washing tank;
Control means for controlling the operation of the washing machine;
Said control means based on a detection result of said water level sensing means, the water supply level during washing activating the circulation device and the driving device while using the partition plate, at a level position under than the partition plate Controlling the water supply device so that the water level does not reach the laundry on the partition during circulation of the water by the operation, and controlling the laundry below the The washing machine is characterized in that it is configured to wash with the water flow of the stirring body by driving, and wash the laundry on the partition with the water from the outlet part circulated by the circulation device.   The circulation device includes a pump blade provided on the back side of the stirring body, and a pump chamber formed at the bottom of the rotary tank and accommodating the pump blade, and the rotation of the pump blade accompanying the rotation of the stirring body 2. The washing machine according to claim 1, wherein the water in the washing tub is circulated through the water passage by a pumping action.   The laundry according to claim 1, wherein the circulation device comprises a pump located outside the washing tank, and the pump circulates water in the washing tank through the water passage. Machine.   The washing machine according to claim 3, wherein the filter is provided upstream of the pump in the water passage.   4. The washing machine according to claim 3, wherein the filter is provided at a position downstream of the pump of the water passage and immediately before an outlet of the water passage.

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