JP2005087539A - Drum type washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively supply water to laundry in a drum, and to quickly achieve washing effect. <P>SOLUTION: A water supply outlet 20 of a water supplying device 18 is formed in a water tub 9. A water supply receiving port 24 is formed in the drum 21. Water is supplied by positioning the drum 21 in a rotation position where the water supply outlet 20 corresponds with the water supply receiving port 24, so that water is directly supplied in the drum 21 from the water supply outlet 21 through the water supply receiving port 24. Thereby, water is effectively supplied to the laundry in the drum 21 so as to prevent floating over of the laundry, to promote rapid permeation of water into the laundry, or the like. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a drum type washing machine having an improved water supply structure.

  2. Description of the Related Art Conventionally, drum-type washing machines are generally provided with a front open type in which a door is provided on the front surface and laundry is taken in and out from the front surface. In this type of drum-type washing machine, the water supply is divided into the interior of the drum and the interior of the water tank that houses the drum by being transmitted from the upper part of the machine to the back surface of the door. For this reason, the entire water supply is not put inside the drum, and most of the water is put into the inside of the water tank (between the drum and the water tank). Can be put in.

On the other hand, in recent years, a top-open type having a door (lid) on the upper surface and taking in and out laundry from the upper surface is also provided. In this type of drum-type washing machine, water is supplied to the inside of the water tank (between the drum and the water tank) along the back of the drum body at the rear part of the machine. For this reason, in this case as well, only a part of the water supply directly enters the inside of the drum through the drum communication hole, and most of the remaining water collects at the bottom between the drum and the water tank, and from there It can be inserted into the drum through the communication hole.
JP-A-8-266777

  As described above, in the case where most of the water supply is put between the drum and the water tank and then put into the drum through the communication hole of the drum, the laundry contained in the drum is Along with that, it only floats on the surface of the water, so that it does not soak into the water and takes time, so that it is difficult to quickly obtain the washing effect, and as a result, there is a disadvantage that the washing time becomes long.

  The present invention has been made in view of the above-described circumstances, and therefore the object thereof is to effectively supply water to the laundry in the drum, so that the washing effect can be obtained quickly and the washing time can be shortened. To provide a drum-type washing machine.

  In order to achieve the above object, in the drum type washing machine of the present invention, a water tank, a drum disposed in the water tank, a driving device for rotating the drum, and positioning the drum in the rotation direction. And a water supply device for supplying water, wherein a water supply outlet of the water supply device is formed in the water tank, a water supply receiving port is formed in the drum, and the water supply outlet of the water supply device is provided with the water supply outlet. The drum is positioned at a rotational position where the receiving port matches and water is supplied.

  According to the above means, when water is supplied by the water supply device, water can be directly supplied into the drum from the water supply outlet of the water supply device through the water supply port of the drum. Therefore, the laundry in the drum can be effectively supplied with water, for example, by suppressing its lifting and allowing water to be efficiently soaked, and thereby the washing effect can be obtained quickly and the washing time can be shortened. .

A first embodiment (first embodiment) of the present invention will be described below with reference to FIGS.
First, FIG. 2 shows the external appearance of the entire drum type washing machine. The outer shell 2 includes a base plate 1, an outer box 2 mounted and coupled to the base plate 1, and a top cover 3 attached to the outer box 2. 4 is configured. The top cover 3 is formed with a laundry entrance / exit 5 over the entire region thereof, and a lid 6 for closing the laundry is pivotally attached so as to be openable and closable by folding in two. Further, on the left side of the laundry entrance / exit 5 (lid 6) of the top cover 3, a loading case 7 for loading a processing agent such as a detergent, a soft finish, and a bleaching agent and a lid 8 for the same are provided. .

  A water tank 9 shown in FIG. 3 is elastically supported from the base plate 1 by a plurality of sets of suspensions 10 inside the outer box 2. The water tank 9 has a laundry entrance 11 at the top. The lid 12 that closes the laundry entrance 11 is pivotally attached so as to be openable and closable. Further, a motor 13 and a drum lock device 14 shown in FIG. 4 are attached to the left end surface portion of the water tank 9, and in addition, a drain valve is provided below the front portion (right side in FIG. 4) of the water tank 9. A drainage device 16 mainly composed of 15 is provided.

  On the other hand, a water supply device 18 mainly including a water supply valve 17 is provided above the rear portion of the water tank 9. In this water supply device 18, the water supply valve 17 has an outlet communicating with the charging case 7, and a bellows-shaped water supply hose 19 is connected to the outlet of the charging case 7. Therefore, in this case, the water supply device 18 has a normal path constituted by the water supply valve 17, the input case 7, and the water supply hose 19. It is designed to run out. FIG. 2 shows an inlet portion (a water supply inlet of the water supply device 18 and a water source connection port) 17 a of the water supply valve 17 exposed from the rear portion of the top cover 3.

FIG. 1 shows a water supply outlet 20 of the water supply device 18. The water supply outlet 20 is formed on the rear side of the water tub 9 near the laundry inlet / outlet 11, and the water supply hose 19 is connected to the tip of the water supply hose 19.
FIG. 1 shows a drum 21 disposed in the water tank 9. The drum 21 has a horizontal cylindrical shape, and both left and right axial ends thereof are rotatably supported on left and right side portions of the water tank 9 via bearings (not shown).

  The drum 21 has a laundry entrance / exit 22 formed in a part of the body (upper part in FIG. 1). A lid 23 for closing the laundry entrance / exit 22 is connected to a rear lid main plate 23a and a front lid. The lid auxiliary plate 23b is pivotally mounted so as to be openable and closable. In addition, although not shown, the drum 21 has a number of communication holes for dehydration and ventilation throughout the entire area. And in the rear part in FIG. 1 near the laundry entrance 22 (lid 23) of the drum 21, the water supply receiving port 24 is formed. Specifically, the position of the water supply receiving port 24 is a position that matches the water supply outlet 20 of the water supply device 18 when the laundry entrance 22 of the drum 21 is aligned with the laundry entrance 11 of the water tub 9. More specifically, it is located below the water supply outlet 20.

  In addition, in this case, the water supply receiving port 24 is configured by attaching a porous plate 26 to the hole 25 formed in the drum 21. That is, the water supply receiving port 24 has a porous shape as shown in FIG. And has a large number of small holes 27. Further, the perforated plate 26 is recessed in a dish shape. Therefore, the water supply receiving port 24 is also recessed toward the inside of the drum 21. Further, with respect to this water supply receiving port 24, the perforated plate 26 has a lower side (for example, the entire peripheral portion of the perforated plate 26) when the laundry entrance 22 of the drum 21 is aligned with the laundry entrance 11 of the water tank 9. A rib 28 is erected on the middle and lower half).

In addition, a flange portion 29 is formed on the entire peripheral portion of the perforated plate 26, and this flange portion 29 is applied to the entire peripheral portion of the hole 25 of the drum 21. 21 is fixed.
FIG. 1 also shows baffles 31 provided at substantially equal intervals at a plurality of locations (in this case, 3 locations) on the inner peripheral portion of the drum 21.

  In addition, although not shown in detail, in addition to the inside of the outer shell 4, there is also provided a drying device that dries the laundry by dehumidifying the air in the drum 21, warming it, and returning it to the drum 21. doing.

  Further, FIG. 6 shows a control device 32 for controlling the overall operation of the drum type washing machine, which is composed of, for example, a microcomputer. Various operation signals are input to the control device 32 from an operation input unit 34 including various operation switches included in an operation panel 33 (see FIG. 2) provided on the front side portion of the top cover 3, and the drum 21. A position detection signal is input from a position sensor 35 which is a drum position detection means provided to detect the rotation position of the water, and a water level sensor 36 provided to detect the water level in the water tank 9 (in the drum 21). The water level detection signal is input from

  Then, based on those inputs and a control program stored in advance, the control device 32 includes a display unit 37 including various display elements of the operation panel 33 and a drive source (for example, a geared motor) of the drum lock device 14. 38, the water supply valve 17, the motor 13, the drain valve 15, the dehumidifying water supply valve 39 of the drying device, the blower 40, and the drive circuit 42 for driving the heater 41 are provided with drive control signals.

Next, the operation of the above configuration will be described.
First, the state before starting the operation remains the state by the control executed when the previous operation is finished. This is because the control device 32 detects the rotational position of the drum 21 by the position sensor 35 and stops the rotation of the drum 21 at a position where the laundry entrance / exit 22 of the drum 21 is aligned with the laundry entrance / exit 11 of the water tub 9, At this position, the drum lock device 14 is further moved to the lock execution position, and the drum lock device 14 is in a position where the laundry doorway 22 of the drum 21 is aligned with the laundry doorway 11 of the water tank 9 described above. The drum 21 is locked. This locked position is also a position where the water supply inlet 24 of the drum 21 is aligned with the water supply outlet 20 of the water supply device 18, so that the position sensor 35 and the drum lock device 14 are connected to the water supply outlet 20 of the water supply device 18. It functions as a positioning means for positioning the drum 21 at the rotational position where the water supply receiving port 24 of the 21 matches.

  In this state, the lids 6, 12 and 23 are opened, and the laundry is put into the drum 21 from the laundry entrance 5 of the top cover 3 through the laundry entrance 11 of the water tub 9 and the laundry entrance 22 of the drum 21. Operation starts. When the operation is started, water is supplied first. This water supply is executed by opening the water supply valve 17 of the water supply device 18, and the water supplied through the water supply valve 17 is treated with the treatment agent (in this case, detergent and bleach). ) From the charging case 7 through the water supply hose 19 and from the water supply outlet 20 of the water tank 9 as shown by the arrow in FIG. Is done. Thereafter, the washing operation is executed.

  As described above, in this configuration, the drum 21 is positioned at a rotational position where the water supply outlet 24 of the drum 21 and the water supply outlet 24 are aligned with the water supply outlet 20, so that the drum 21 is supplied from the water outlet 20 through the water supply outlet 24 of the drum 21. Water can be supplied directly inside. Therefore, the laundry in the drum 21 can be effectively supplied with water, for example, by suppressing its lifting and allowing water to be efficiently soaked in, so that the washing effect can be obtained quickly, so that the washing time can be reduced. It can be shortened.

  Further, in the case of this configuration, the above-described positioning of the drum 21 is performed at a position where the laundry entrance 11 of the water tub 9 and the laundry entrance 22 of the drum 21 are aligned with each other. Execution of water supply by starting operation following the input of the laundry from 22, that is, direct water supply from the water supply outlet 20 into the drum 21 through the water supply inlet 24 of the drum 21 is performed in the laundry entrance 11. , 22 can be combined with the drum 21 without positioning control.

  Further, in the case of this configuration, the water supply opening 24 of the drum 21 is formed in a porous shape, so that the water supply into the drum 21 is performed in a shower-like manner. On the other hand, water can be uniformly distributed, and water can be supplied more efficiently and effectively. Therefore, the washing effect can be obtained more quickly and the washing time can be further shortened.

  In addition, in the case of the present configuration, when the drum 21 is positioned as described above, the water supply receiving port 24 is adapted to fit below the water supply outlet 20 of the water supply device 18, so that the water supply outlet 20 The flowing water can be smoothly supplied into the drum 21 through the water supply receiving port 24, and the water can be supplied more efficiently, so that the washing effect can be obtained more quickly and the washing time can be further shortened. Can do.

  Further, in the case of this configuration, the water supply receiving port 24 has a rib 28 erected on the lower side when the drum 21 is positioned as described above, so that it passes straight through the water supply receiving port 24. Since the water that has flowed down on the upper surface without clogging can be dammed by the ribs 28 and allowed to flow out from the water supply receiving port 24, water can be supplied more efficiently and the washing effect can be obtained more promptly. Time can be further reduced.

7 to 11 show the second and third examples (second and third embodiments) of the present invention. The same reference numerals are given to the same parts as those in the first example. A description will be omitted, and only different parts will be described.
[Second Embodiment]
In the second embodiment shown in FIG. 7 to FIG. 9, the water supply receiving port 51 is formed by the edge of the lid 23 of the drum 21 instead of the water supply receiving port 24 described above. This is formed by a gap between the leading edge of the lid main plate 23a and the leading edge of the lid auxiliary plate 23b. In FIG. 8, 52 denotes a decorative cover provided on the surface of the leading edge of the lid main plate 23a, 53 denotes a reinforcing plate provided on the back surface of the leading edge of the lid main plate 23a, and 54 denotes the lid auxiliary plate 23b. Reinforcing plates provided on the back surface of the leading edge are shown.

  Then, as shown in FIG. 9, after the operation is started (started), the control device 32 rotates the drum 21 from the same position as shown in FIG. 1 by the motor 13 (step S1), and the rotation thereof. By detecting the position by the position sensor 35, the rotation of the drum 21 is stopped at the position where the water supply receiving port 51 is aligned with the laundry entrance / exit 11 of the water tub 9, and positioning is performed (step S2). At this time, the drum 21 is not locked by the drum lock device 14, but may be performed.

  Thereafter, the water supply valve 17 is opened (step S3), whereby water is supplied from the water supply outlet 20 of the water supply device 18 into the drum 21 through the water supply receiving port 51. In this state, it is determined whether or not the water level in the water tank 9 (in the drum 21) has reached the set water level based on the water level detection signal from the water level sensor 36 (step S4). As soon as this is done, the water supply valve 17 is closed to end the water supply (step S5), and then the washing operation is executed (step S6).

By thus forming the water supply receiving port 51 at the edge of the lid 23 of the drum 21 and supplying water, the water supply receiving port 51 is not specially formed in the drum 21 (the edge of the lid 23 is supplied with water supply). Water can be supplied directly into the drum 21 (using the mouth 51).
Note that the water supply receiving port 51 is formed between the lid and the drum portion 21 of the drum 21 if the lid 23 is not a two-plate configuration of the lid main plate 23a and the lid auxiliary plate 23b. May be.

Further, the positioning control of the drum 21 without the locking of the drum 21 by the drum lock device 14 may be performed at the time of water supply from the start to the end of the operation, such as before the rinsing operation.
[Third embodiment]
In the third embodiment shown in FIGS. 10 and 11, the baffle 61 of the drum 21 is a hollow shape communicating with a plurality of water holes 62 formed in the body portion of the drum 21 instead of the baffle 31 described above. Further, by having the water injection port 63 at the tip, the water supply port 64 is substituted for the water supply port 24 and the water supply port 51 described above.

Even if it does in this way, the water supply directly in the drum 21 can be performed, without forming a water supply receptacle in the drum 21 specially (using the baffle 61 for the water receptacle 64).
Further, in this case, the baffle 61 is configured such that the drum 21 includes a plurality of water supply openings 64 by configuring all the baffles included in the drum 21 as described above.

  Further, in this case, as shown in FIG. 11, after the operation is started (started), the control device 32 causes the motor 13 to rotate the drum 21 from the same position as shown in FIG. 1 (step S101). ) By detecting the rotation position by the position sensor 35, the rotation of the drum 21 is stopped at the position where the nearest water supply receiving port 64 and the laundry inlet / outlet port 11 of the water tub 9 are aligned (step S102). ). At this time, the drum lock device 14 does not lock the drum 21 but may perform it.

  Thereafter, the water supply valve 17 is opened (step S103), whereby water is supplied from the water supply outlet 20 of the water supply device 18 into the drum 21 through the water supply receiving port 64. Thereafter, the water supply valve 17 is closed to stop the water supply (step S104), and then it is determined whether or not the water level in the water tank 9 (in the drum 21) has reached the set water level by the water level detection signal from the water level sensor 36. (Step S105), while it is determined that it has not reached (NO), the process returns to step S101, and steps S101 to S105 are repeated. That is, in this case, the drum 21 is positioned at a position where the plurality of water supply inlets 64 are sequentially aligned with the laundry entrance / exit 11 of the water tub 9, and water is supplied each time.

Thereby, water can be uniformly supplied to the laundry in the drum 21 and water can be supplied more efficiently and effectively. Therefore, also in this case, the washing effect can be obtained more quickly and the washing time can be further shortened. be able to.
If it is determined in step S105 that it has reached (YES), the washing operation is executed (step S106).

Here, the water supply receiving port 64 may be configured in some of the baffles included in the drum 21, or may be configured in only one of them, or may be configured in only one to perform the positioning control illustrated in FIG. 9. It may be a thing.
Further, the porous structure of the water supply receiving port 24 shown in the first embodiment may be a lattice-shaped structure.

Further, the overall configuration of the drum type is not limited to the top open type, but may be a front open type.
In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications within a range not departing from the gist.

1 is a longitudinal side view of a main portion showing a first embodiment of the present invention. Overall perspective view Perspective view of main parts Overall profile side view Enlarged perspective view of the water inlet Electrical configuration block diagram FIG. 1 equivalent view showing a second embodiment of the present invention. Enlarged vertical side view of the water inlet Flow chart for explanation of operation FIG. 1 equivalent view showing a third embodiment of the present invention. Fig. 9 equivalent

Explanation of symbols

  In the drawings, 9 is a water tank, 11 is a laundry doorway, 14 is a drum lock device (positioning means), 18 is a water supply device, 20 is a water supply outlet, 21 is a drum, 22 is a laundry doorway, 23 is a lid, and 24 is water supply. A receiving port, 26 is a perforated plate, 28 is a rib, 35 is a position sensor (positioning means), 51 is a water supply receiving port, 61 is a baffle, and 64 is a water supply receiving port.

Claims (7)

A tank,
A drum disposed inside the aquarium;
A driving device for rotationally driving the drum;
Positioning means for positioning the drum in the rotational direction;
In what comprises a water supply device for supplying water,
While forming the water supply outlet of the water supply device in the water tank,
Forming a water inlet in the drum;
A drum type washing machine characterized in that water is supplied by positioning the drum at a rotational position where the water supply receiving port is aligned with a water supply outlet of the water supply device.   2. The drum type washing machine according to claim 1, wherein each of the water tub and the drum has a laundry doorway, and the drum is positioned at a position where both the laundry doorways meet.   The drum type washing machine according to claim 1, wherein the water supply receiving port has a porous shape.   2. The drum type washing machine according to claim 1, wherein when the drum is positioned, the water supply receiving port is fitted below the water supply outlet of the water supply device.   The drum type washing machine according to claim 4, wherein the water supply receiving port has a rib standing on the lower side when the drum is positioned.   2. The drum type washing machine according to claim 1, wherein the drum has a laundry entrance, and a water inlet is formed at an edge of a lid that closes the laundry entrance. The drum type washing machine according to claim 1, wherein the drum has a baffle, and the baffle serves as a water inlet.

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