JP7209311B1 - Washing machine - Google Patents

Abstract

Kind Code: A1 A washing machine is provided in which the functional improvement of a configuration relating to automatic injection of a liquid agent is realized. A washing machine according to the present disclosure contains an outer tub elastically supported in a housing, a first tank 62A containing a liquid agent to be supplied to the outer tub, a liquid agent to be supplied to the outer tub, and and a second tank 62B arranged side by side with the first tank 62A, the depth of the second tank 62B being greater than the depth of the first tank 62A along the outer circumference of the outer tank. Such a configuration makes it possible to increase the total volume of the two tanks 62A, 62B. Also, different types of liquid agents can be stored in different amounts within the housing. Therefore, the function of the automatic injection unit 6 can be improved. [Selection drawing] Fig. 8B

Description

The present disclosure relates to washing machines.

For example, Patent Literature 1 discloses a washing machine equipped with an automatic liquid injection device.

A washing machine described in Patent Document 1 includes a liquid agent automatic dosing device that includes a storage case in which two tanks, namely a detergent tank and a softener tank are mounted.

WO2019/044306

However, in the washing machine described in Patent Document 1, there is still room for improvement in terms of improving the function of the configuration relating to automatic injection of the liquid agent.

Accordingly, an object of the present disclosure is to solve the above problems, and to provide a washing machine that realizes an improvement in the functionality of the configuration relating to automatic injection of the liquid agent.

A washing machine according to one aspect of the present disclosure includes an outer tub elastically supported in a housing, a first tank containing a liquid agent to be supplied to the outer tub, a liquid agent to be supplied to the outer tub, and a first tank. a second tank arranged side by side ; a first automatic liquid material injection device connected to a first connection formed in the first tank; and a second connection formed in the second tank. 2. An automatic liquid material dosing device, wherein the depth of the second tank is greater than the depth of the first tank along the outer circumference of the outer tank, and the depth of the second connection is equal to the depth of the first connection. greater than

According to the present disclosure, it is possible to provide a washing machine that realizes an improvement in the function of the configuration relating to the automatic injection of the liquid agent.

Schematic cross-sectional view of a washing machine according to an embodiment of the present disclosure Schematic front view of washing machine Perspective view of automatic loading unit Perspective view of automatic loading unit Top view of automatic loading unit Perspective view of part of the automatic loading unit Perspective view of the case Perspective sectional view of automatic loading unit Cross-sectional view of automatic loading unit Partially exploded view of the tank, liquid material input device, and liquid material discharge channel Rear view of the tank, liquid injection device, and liquid discharge channel Exploded view of a single tank and fluid dosing device Exploded view of a single tank and fluid dosing device Schematic diagram of liquid injection device Perspective view of cylinder, power section and reduction mechanism side view of cylinder Top view of case showing water flow Top view of case showing water flow Perspective view of the case showing the flow of water and liquid agent Schematic cross-sectional view of an automatic feeding unit according to modification 1 Schematic cross-sectional view of an automatic loading unit according to modification 2

(embodiment)
A washing machine according to an embodiment of the present disclosure will be described.

[overall structure]
FIG. 1 is a schematic cross-sectional view showing a washing machine 1 of an embodiment according to the present disclosure. FIG. 2 is a schematic front view of the washing machine 1. FIG. The washing machine 1 of this embodiment is a washing/drying machine having a liquid agent automatic injection function. In this specification, the liquid agent is a liquid agent used for washing the laundry 15 such as clothes, and includes detergents, softeners, neutral detergents, and the like.

As shown in FIG. 1, the washing machine 1 includes a housing 2, an outer tub 3, an inner tub 4, a drive unit 5, an automatic loading unit 6, a connection channel 8, a water supply port 10, and a drain valve. 11 and a controller (not shown).

<Case>
The housing 2 is a member that forms the appearance of the washing machine 1 . An opening 20 and an openable/closable door 21 covering the opening 20 are provided on the front surface of the housing 2 .

<Outer tank>
The outer tub 3 is a substantially cylindrical member provided inside the housing 2 and having a function of storing washing water. The outer tank 3 may also be called a water tank. The outer tub 3 has a tubular portion 34 and a bottom portion 36 closing one end of the tubular portion 34 . A central axis V0 of the outer tub 3 passes through the center of the bottom portion 36 . The central axis V0 is tilted with respect to the horizontal. The outer tub 3 is elastically supported by dampers 30 and coil springs (not shown), and absorbs vibrations during washing and dewatering by the dampers 30 and coil springs. The outer tub 3 has an opening 31 at a position facing the opening 20 of the housing 2 and is hermetically connected to the opening 20 of the housing 2 by a bellows 32 . The outer tub 3 is further provided with openings 33 and 35 for water flow. The opening 33 is an opening connected to the connection channel 8, and the opening 35 is a drain port for draining the water in the outer tank 3 to the outside.

Further, in the following description, the horizontal direction along the central axis V0 is defined as the front-rear direction M (FIG. 1), and the horizontal direction orthogonal to the plane including the central axis V0 is defined as the width direction K (FIG. 2). The front-rear direction M has a front side M1 toward the opening 31 and a rear side M2 toward the bottom 36, and the width direction K has an outer side K1 away from the center axis V0 and a center side K2 toward the center axis V0.

<Inner tank>
The inner tub 4 is a substantially cylindrical member that is rotatable around the central axis V0 inside the outer tub 3 and accommodates laundry 15 such as clothes. The inner tank 4 may be called a drum. A large number of through holes 40 are formed in the inner tank 4 . The through hole 40 allows the inner tub 4 and the outer tub 3 to communicate with each other to allow the wash water to move from the inner tub 4 to the outer tub 3 . The inner tub 4 further has an opening 41 at a position facing the opening 20 of the housing 2 and the opening 31 of the outer tub 3 .

<Drive unit>
The drive unit 5 is a member that drives the inner tank 4 to rotate. The drive unit 5 has, for example, a power unit that rotates the inner tank 4 .

<Automatic input unit>
The automatic injection unit 6 is a unit for automatically injecting a predetermined amount of liquid agent from a liquid agent storage tank into the outer tank 3 . When the liquid agent is not manually input, the automatic input unit 6 supplies an appropriate type of liquid agent in an appropriate amount according to the amount and type of the laundry 15 during the washing process, the rinsing process, and the like. Put into tank 3. The automatic dosing unit 6 is connected to the outer bath 3 via a connecting channel 8 in order to supply the liquid agent to the outer bath 3 .

The automatic injection unit 6 includes a case 61, tanks 62A, 62B and 62C (tanks 62B and 62C not shown), liquid agent injection devices 63A, 63B and 63C (liquid agent injection devices 63B and 63C not shown), and liquid agent ejection. A channel 64 , a manual input part 65 and a water supply electromagnetic valve 66 are provided.

As shown in FIG. 2 , the automatic loading unit 6 is provided diagonally above the outer tub 3 inside the housing 2 . A bottom surface 55 of the case 61 has a shape along the outer circumference of the cylindrical portion 34 of the outer tub 3 . The bottom surface 55 is inclined downward toward the outer side K1. Further, as shown in FIG. 1, the bottom surface 55 is sloped downward toward the rear side M2. An upper portion of the automatic loading unit 6 faces an openable/closable cover 60 provided on the upper surface of the housing 2 .

<Connection channel>
The connection channel 8 is a channel for flowing the liquid agent from the automatic injection unit 6 to the outer tank 3 . The connection channel 8 extends downward from the liquid agent outlet 81 of the automatic injection unit 6 to the opening 33 of the outer tank 3 .

<Water supply port>
The water supply port 10 is a connection port for connecting a hose that supplies water to the outer tub 3 via the automatic feeding unit 6 . A water supply port 10 is provided in the upper portion of the housing 2 .

<Drain valve>
The drain valve 11 is configured to be openable and closable, and is a valve for draining water stored in the outer tub 3 through an opening 35 of the outer tub 3 when opened. A drain valve 11 is provided at the bottom of the housing 2 .

<Control part>
A control unit (not shown) is a member that controls the operation of the washing machine 1 . The control unit controls components of the washing machine 1 such as the drive unit 5, the liquid agent injection devices 63A, 63B, and 63C of the automatic injection unit 6, the water supply port 10, and the drain valve 11. The control unit includes, for example, a memory (not shown) storing a program and a processing circuit (not shown) corresponding to a processor such as a CPU, and the processor functions as these elements by executing the program. may

Next, constituent elements of the automatic injection unit 6 will be described with reference to FIGS. 3 to 6. FIG. 3 and 4 are perspective views of the automatic loading unit 6. FIG. FIG. 5 is a top view of the automatic loading unit 6. FIG. FIG. 6 is a perspective view of part of the automatic injection unit 6. FIG.

<Case>
As shown in FIG. 3, the case 61 is a member that accommodates the tanks 62A, 62B, and 62C that constitute the automatic loading unit 6 and the manual loading section 65. As shown in FIG. The bottom surface 55 of the case 61 is inclined outward K1 along the outline of the outer tub 3 schematically indicated by the dotted line. The upper part of the case 61 is open.

Here, the surface on the front side M1 of the case 61 is defined as a front surface 56, and the surface on the rear side M2 of the case 61 is defined as a rear surface 57. As shown in FIG. As shown in FIGS. 4 and 6, the back surface 57 of the case 61 is connected to liquid agent injection devices 63A, 63B, and 63C (FIG. 6), a liquid agent discharge channel 64, and a water supply electromagnetic valve 66 (FIG. 4). The channel 8 (FIG. 4) is connected.

As shown in FIG. 5 , a supply channel 67 is formed in the upper portion of the case 61 . The supply channel 67 forms a plurality of independent paths along the outer circumference of the case 61 . Each route supplies water from the water supply electromagnetic valve 66 to the inside of the case 61 .

<Tank>
The case 61 accommodates three tanks 62A, 62B, and 62C arranged side by side in the width direction K. As shown in FIG. Tanks 62A, 62B, and 62C are containers for storing liquid agents used in the washing process and the rinsing process. The tanks 62A, 62B, 62C have a substantially rectangular parallelepiped shape, and the longitudinal direction of the substantially rectangular parallelepiped is parallel to the front-rear direction M.

The tanks 62A, 62B, 62C are removable from the case 61. An empty space is formed on the front side M1 of the case 61 when the manual insertion portion 65 is removed from the case 61 . Therefore, the tanks 62A, 62B, 62C can be pulled forward M1 to be removed from the liquid agent charging devices 63A, 63B, 63C (FIG. 6) and taken out upward.

<Liquid injection device>
As shown in FIG. 6, the liquid agent injection devices 63A, 63B, 63C are devices that suck out a predetermined amount of liquid agent from tanks 62A, 62B, 62C and eject it into the liquid agent ejection channel 64. As shown in FIG. The liquid injection devices 63A, 63B, 63C are connected to respective tanks 62A, 62B, 62C via the rear surface 57 of the case 61. As shown in FIG. A liquid material introduction device 63A is connected to the tank 62A, a liquid material introduction device 63B is connected to the tank 62B, and a liquid material introduction device 63C is connected to the tank 62C. The liquid injection devices 63A, 63B, 63C are arranged side by side in the width direction K. As shown in FIG.

The detailed structures of the case 61, the tanks 62A, 62B, 62C, and the liquid injection devices 63A, 63B, 63C will be described later.

<Liquid agent discharge channel>
As shown in FIG. 6 , the liquid agent discharge channel 64 is a channel member that supplies the liquid agent and water to the outer tank 3 via the case 61 . The liquid agent discharge channel 64 is provided on the back surface 57 of the case 61 and connected to the three liquid agent injection devices 63A, 63B, and 63C. The liquid agent discharge channel 64 extends obliquely downward toward the outer side K1. The fluid flowing through the liquid agent ejection channel 64 flows in one direction according to the inclination of the liquid agent ejection channel 64 .

<Manual input unit>
As shown in FIG. 5, the manual input unit 65 is a mechanism for the user to manually input a liquid agent as a laundry treatment agent for one time each time the washing operation is performed. The liquid agent that is manually added flows into the outer tank 3 (FIG. 1) from the case 61 through the connecting channel 8 (FIG. 1) in the amount that was added. The liquid agent injected into the manual injection unit 65 may be liquid or powder. The manual loading unit 65 is detachably housed in the case 61 on the front side M1 of the tanks 62A, 62B, 62C.

<Water supply solenoid valve>
As shown in FIGS. 4 and 5, the water supply electromagnetic valve 66 is composed of three electromagnetic valves, and changes the route of the supply flow path 67 (FIG. 5) to which water is supplied by opening and closing each valve. Water flows into the outer tub 3 through the case 61 .

Next, the structure of the case 61 of the automatic loading unit 6 will be described in more detail with reference to FIG. FIG. 7 is a perspective view of the case 61. FIG.

As shown in FIG. 7, the case 61 has inner bottom surfaces B1, B2, and B3. The inner bottom surfaces B1, B2, B3 are arranged in order along the outer side K1. The inner bottom surface B1 is a surface positioned directly below the tank 62A (FIG. 6), the inner bottom surface B2 is a surface positioned directly below the tank 62B (FIG. 6), and the inner bottom surface B3 is a surface positioned directly below the tank 62C (FIG. 6). ). In other words, the inner bottom surfaces B1, B2, B3 form regions P1, P2, P3 that accommodate tanks 62A, 62B, 62C, respectively.

Tank connection ports 77A, 77B, and 77C, a first case connection port 78, a second case connection port 79, and a liquid agent outlet 81 are formed on the rear surface 57 of the case 61 .

The tank connection ports 77A, 77B, 77C are openings provided for connecting the tanks 62A, 62B, 62C accommodated in the case 61 and the liquid material injection devices 63A, 63B, 63C arranged outside the case 61. is.

Also, the first case connection port 78 is an opening that allows water flowing from the supply channel 67 to flow into the liquid agent discharge channel 64 . The second case connection port 79 is an opening through which water from the liquid agent discharge channel 64 and the liquid agent that is automatically injected flow into the case 61 . The liquid agent outlet 81 is an opening through which the fluid that has flowed into the case 61 of the second case connection port 79 and the fluid from the manual input portion 65 is discharged through the connection channel 8 toward the outer tank 3 . The first case connection port 78 is provided at a position higher than the second case connection port 79 .

A state in which the tanks 62A, 62B, and 62C are attached to the case 61 configured as described above will be described in more detail with reference to FIGS. 8A and 8B. 8A is a perspective sectional view of the automatic injection unit 6. FIG. 8B is a cross-sectional view of the automatic injection unit 6. FIG.

As shown in FIGS. 8A and 8B, depths L1, L2, and L3 are the distances from the top surface to the deepest part of each tank 62A, 62B, and 62C. The depths L1, L2, L3 of the three tanks 62A, 62B, 62C increase outward K1. Depth L2 of tank 62B is greater than depth L1 of tank 62A, and depth L3 of tank 62C is greater than depth L2 of tank 62B.

Here, the volumes of the tanks 62A, 62B, 62C will be explained. Returning to FIG. 5, the top surfaces of tanks 62A, 62B, 62C have a common shape. The dimensions of the tanks 62A, 62B, 62C in the width direction K and the front-rear direction M may be the same. Due to the common shape of the top surface, the volume of tanks 62A, 62B, 62C increases along the outer side K1 with depth L1, L2, L3.

The three tanks 62A, 62B, 62C may contain different or the same liquid agents. Taking into consideration the types of liquid agents and the volumes of the tanks 62A, 62B, and 62C, the liquid agents may be stored in the tanks 62A, 62B, and 62C in order of decreasing frequency of use. For example, neutral detergent is stored in tank 62A, softener is stored in tank 62B, and detergent is stored in tank 62C.

As shown in FIGS. 8A and 8B, the bottom surfaces of the tanks 62A, 62B, 62C, including the deepest portions, extend along the width direction K and become lower toward the outside K1 for each tank. Therefore, the bottom surfaces of the tanks 62A, 62B, and 62C are arranged in a stepped pattern. Inner bottom surfaces B1, B2 and B3 of the case 61 are located directly below the bottom surfaces of the tanks 62A, 62B and 62C. The inner bottom surfaces B1, B2, and B3 are also formed at lower positions toward the outer side K1, that is, stepwise. Therefore, the depths of the regions P1, P2, P3 increase in order toward the outer side K1.

Further, as shown in FIG. 8B, gaps H1, H2 and H3 are formed between the respective tanks 62A, 62B and 62C and the inner bottom surfaces B1, B2 and B3. A gap H3 between the inner bottom surface B3 and the bottom surface of the tank 62C is larger than the gaps H1 and H2.

Directly below the tank 62C is close to the outside of the housing 2, and compared to the tanks 62A and 62B, it is easier to secure a space in the vertical direction, so a large gap H3 can be formed. Therefore, it is possible to easily form the input channel 82 for flowing the liquid agent and water to the outer tank 3 along the inner bottom surface B3. With such a configuration, it is possible to secure a space for the input channel 82 while maximizing the volumes of the tanks 62A and 62B. The lower end of the input channel 82 forms a liquid agent outlet 81 (FIG. 7) and communicates with the outer tank 3 via the liquid agent outlet 81 .

The surfaces of the rear sides M2 of the tanks 62A, 62B, 62C, ie, the surfaces including the lateral direction, form connecting portions 76A, 76B, 76C. The connecting portions 76A, 76B, 76C are structured to be connected to the liquid agent injection devices 63A, 63B, 63C. Each of the connection portions 76A, 76B, 76C includes a check valve (not shown) and a connection port. The check valves are opened when the liquid agent injection devices 63A, 63B, 63C are attached, and the tanks 62A, 62B, 62C and the liquid agent injection devices 63A, 63B, 63C communicate with each other. The connection ports are openings through which liquid agents are sucked out, and face tank connection ports 77A, 77B, and 77C shown in FIG. Note that the connecting portions 76A, 76B, and 76C may further include other structures. Connections 76A, 76B, 76C are formed at the deepest portions of tanks 62A, 62B, 62C. Accordingly, the depths L1, L2, L3 of the connecting portions 76A, 76B, 76C increase toward the outer side K1.

Next, the liquid agent injection devices 63A, 63B, 63C connected to the tanks 62A, 62B, 62C will be described in more detail with reference to FIGS. 9 and 10. FIG. FIG. 9 is a partially exploded view of tanks 62A, 62B, 62C, liquid material input devices 63A, 63B, 63C, and liquid material discharge channel 64. As shown in FIG. FIG. 10 is a rear view of the tanks 62A, 62B, 62C, the liquid material injection devices 63A, 63B, 63C, and the liquid material discharge channel 64. FIG. Here, the tank 62, the liquid agent injection device 63, and the connecting portion 76 are collectively referred to as the tanks 62A, 62B, 62C, the liquid agent injection devices 63A, 63B, 63C, and the connecting portions 76A, 76B, 76C, respectively.

As shown in FIGS. 9 and 10, the liquid agent injection devices 63A, 63B, and 63C are lowered toward the outer side K1 in accordance with the change in the depth of the connecting portion 76 of the tank 62. FIG. The liquid agent injection devices 63A, 63B, and 63C are arranged so that the later-described liquid agent inlet 91 of the liquid agent injection device 63 faces the connecting portion 76 formed on the surface including the lateral direction of the tank 62 . In this embodiment, the liquid agent injection devices 63A, 63B, and 63C are arranged stepwise, and the stepwise liquid agent injection device 63, tank 62, and connecting portion 76 have the same pitch in the depth direction. Such a structure makes it possible to equalize the distance over which the liquid agent flows from the connecting portion 76 to the liquid agent introduction device 63 in the three tanks 62 . Therefore, in the path between the connection part 76 and the liquid agent injection device 63, it is possible to reduce variations in pressure loss that occur when the pump mechanism 73, which will be described later, is driven. Therefore, variation in the amount of liquid material supplied by the liquid material injection device 63 can be suppressed.

Furthermore, as shown in FIG. 9, the tank 62 comprises a main body 87 and a lid 88. As shown in FIG. The upper portion of the main body 87 is open and covered with a lid 88 . Lid 88 is removably retained on main body 87 . As previously mentioned, the upper surfaces of tank 62 have a common shape, and thus the upper surfaces of body 87 have a common shape. Moreover, the structure for holding the lid 88 is also common. Therefore, the lid 88 of each tank 62 can be formed in common, and the lid 88 can be replaced. More specifically, the lid 88 of any tank 62A, 62B, 62C can be attached to any other tank 62A, 62B, 62C. On the other hand, the colors, patterns, letters, etc. attached to the lid 88 and other indications for improving the distinguishability of the tank 62 may be different. The lid 88 has a small lid 88A that can be opened and closed with respect to the lid 88 on the front side M1 of the tank 62. As shown in FIG.

Taking the liquid material injection device 63 connected to one arbitrary tank 62 as an example, the structure of one liquid material injection device 63 will be described in more detail with reference to FIGS. 11A, 11B, and 12A. 11A is an exploded view of a single tank 62 and liquid dosage device 63. FIG. FIG. 11B is an exploded view of a single tank 62 and liquid dosage device 63. FIG. FIG. 12A is a schematic diagram of the liquid agent injection device 63, and a part of the configuration is omitted so that the inside of the liquid agent injection device 63 can be seen.

11A and 11B, the liquid injection device 63 is detachably connected to the rear surface 90 of the tank 62 along the front-rear direction M. As shown in FIGS. In other words, the tank 62 and the liquid injection device 63 connected to the tank 62 are arranged along the front-rear direction M, respectively.

As shown in FIG. 11A , the liquid injection device 63 includes a power section 71 , a reduction mechanism 72 and a pump mechanism 73 . The power unit 71 is an electronic component that rotates around the rotation axis V1. The reduction mechanism 72 is arranged around the power section 71 and is a mechanism having an output shaft V2 (FIG. 12A) that rotates at a rotational speed lower than that of the power section 71 . The output shaft V2 is parallel to the rotation axis V1. The pump mechanism 73 is a positive displacement pump that is connected to the output shaft V2 and sucks up and discharges the liquid agent from the tank 62 . When the rotating shaft V1 of the power unit 71 rotates, the output shaft V2 of the reduction mechanism 72 rotates, and the later-described piston 83 in the pump mechanism 73 moves up and down.

The arrangement of the liquid injection device 63 will be described in more detail. As shown in FIG. 11A, the speed reduction mechanism 72 and the power section 71 extend in the radial direction R1. The radial direction R1 means a horizontal direction away from the output axis V2 on a plane orthogonal to the output axis V2. The radial direction R1 is parallel to the plane on which the power section 71 and the speed reduction mechanism 72 rotate. The radial direction R1 is substantially orthogonal to the width direction K. The angle formed between the radial direction R1 and the width direction K is 60° or more and 120° or less. In this embodiment, the radial direction R1 is orthogonal to the width direction K, and the radial direction R1 is parallel to the front-rear direction M. Furthermore, the radial direction R1 is parallel to the direction in which the liquid agent injection device 63 is connected to the tank 62 , that is, the direction in which the liquid agent flows into the liquid agent injection device 63 .

Also, the dimension D1 of the speed reduction mechanism 72 in the radial direction R1 is larger than the thickness T1 of the speed reduction mechanism 72 extending along the rotation axis V1. Due to the arrangement of the deceleration mechanism 72 , the dimension of the liquid material injection device 63 in the width direction K can be reduced when the liquid material injection device 63 is connected to the tank 62 . On the other hand, the dimension D1 of the speed reduction mechanism 72 in the radial direction R1 is larger than the dimension D2 of the tank 62 in the width direction K. Therefore, compared to the case where the radial direction R1 of the speed reduction mechanism 72 is arranged in the width direction K, the dimension in the width direction K of the structure in which the liquid agent injection device 63 is connected to the tank 62 is reduced, and the pitch between the tanks 62 is reduced. can be made smaller. The small pitch arrangement allows, for example, three tanks 62 to be arranged in the limited space above the outer tank 3 (FIG. 2) without impairing the volume of each tank 62 .

The power section 71 and the speed reduction mechanism 72 will be described in more detail. As shown in FIG. 12A, the power section 71 has a coil 71A, a magnet 71B, and connector terminals 71C. When a voltage is applied to connector terminal 71C tube, current flows in coil 71A. The current causes coil 71A to generate a magnetic field around it. The magnet 71B receives the magnetic field generated by the coil 71A, generates torque, and rotates around the rotation axis V1. Rotation of the magnet 71B is transmitted to the reduction mechanism 72 .

The speed reduction mechanism 72 is composed of a plurality of speed reduction gears 102 . Since one reduction gear 102 is engaged with the magnet 71B, the rotation of the magnet 71B is transmitted through the reduction gear 102 to the output shaft V2. On the other hand, the rotation of the output shaft V2 is converted to vertical motion via the eccentric cam 89 and transmitted to the pump mechanism 73. As shown in FIG.

By providing the speed reduction mechanism 72, the general-purpose power section 71 can be applied to the liquid agent injection device 63, and the cost of the automatic injection unit 6 can be suppressed.

Also, the power unit 71 and the reduction mechanism 72 may be collectively referred to as the motor 70 .

The pump mechanism 73 will be explained in more detail. As shown in FIG. 12A, pump mechanism 73 has piston 83 , cylinder 84 , inlet channel 85 and outlet channel 86 . The piston 83 is a member that is connected to the output shaft V2 of the deceleration mechanism 72 and reciprocates vertically as the output shaft V2 rotates. The cylinder 84 is a member that accommodates the piston 83 and forms a space in which the liquid agent is sucked up. The inlet flow path 85 is a flow path that connects the tank 62 and the lower end of the cylinder 84 to suck up the liquid agent from the tank 62 through the liquid agent inlet port 91 . The liquid agent inlet 91 is inserted into the connection portion 76 of the tank 62 . The outlet channel 86 is a channel that connects the lower end of the cylinder 84 and the liquid agent discharge channel 64 to discharge the liquid agent in the cylinder 84 to the liquid agent discharge channel 64 .

12B is a perspective view of the cylinder 84 and speed reduction mechanism 72. FIG. 12C is a side view of cylinder 84. FIG.

As shown in FIG. 12B, the cylinder 84 is integrally formed with a bracket 92 for attaching the power section 71 and the speed reduction mechanism 72 (that is, the motor 70) to the cylinder 84. As shown in FIG. The bracket 92 forms a mounting guide 92A and a screw hole 92B. The mounting guide 92A is inserted into a guide hole 72A formed in the speed reduction mechanism 72 to position the speed reduction mechanism 72. As shown in FIG. A screw is inserted into the screw hole 92B so as to face the screw hole 72B formed in the speed reduction mechanism 72, and the cylinder 84 and the speed reduction mechanism 72 are fixed. Two mounting guides 92</b>A and two screw holes 92</b>B are formed at positions opposed to each other in the radial direction of the speed reduction mechanism 72 .

As shown in FIG. 12C, the cylinder 84 forms a gap 84A with the bracket 92 along the range Z1 in which the piston 83 (FIG. 12A) slides up and down. Therefore, the cylinder 84 has a uniform thickness in the range Z1 in which the piston 83 slides. With such a structure, shrinkage during resin molding can be suppressed. Therefore, in the range Z1, the necessary dimensional accuracy can be ensured in the cylinder 84 in order to realize the sealing performance of the piston 83 .

Returning to FIG. 12A, the motor 70 is attached to the bracket 92 (FIG. 12C) in such a manner that the power section 71 is separated from the inlet flow path 85 with respect to the output shaft V2. Therefore, since the speed reduction mechanism 72 protrudes farther away from the inlet passage 85 than the central axis of the cylinder 84, the tank 62 and the cylinder 84 can be arranged close to each other. Furthermore, interference between electronic components such as connectors included in the power unit 71 and the flow path can be suppressed.

[motion]
In the above configuration, an example of the operation of the automatic loading unit 6 will now be described with reference to FIGS. 12A and 13A to 13C. 13A and 13B are top views of the case 61 showing the flow of water. FIG. 13C is a perspective view of the case 61 showing the flow of water and liquid agents S1 and S2.

The automatic loading unit 6 operates during the washing process and the rinsing process of the washing machine 1. - 特許庁The operation of the automatic injection unit 6 is controlled by the controller. The controller controls, for example, the opening and closing of the water supply solenoid valve 66, the type of liquid agent to be injected, the amount of injection, the timing of injection, and the like.

As shown in FIGS. 13A to 13C, the automatic input unit 6 supplies water and liquid agents to the outer bath 3 in the washing process and the rinsing process.

The flow of water will now be described in more detail. Water is supplied from the water supply electromagnetic valve 66 to the paths indicated by arrows X1 to X3. The route reaches the outer tub 3 from the water supply electromagnetic valve 66 via the supply flow path 67 and the case 61 .

As shown in FIG. 13A, during the washing process, the first solenoid valve (not shown) of the water supply solenoid valve 66 is opened to perform automatic or manual dosing of detergent. In this state, the water flows from the water supply electromagnetic valve 66 in the supply channel 67 by branching into paths indicated by arrows X1 and X2.

Water flowing along the arrow X1 flows into the case 61 through an opening 94 formed above the rear surface 90 of the tank 62 . The water flowing along the arrow X2 passes through an opening 95 formed near the manual input portion 65, and flows toward the case 61 together with the manually added detergent through a water input opening 96 formed in the manual input portion 65. flow downwards.

As shown in FIG. 13B, the water that has flowed into the case 61 along arrow X1 branches into two paths indicated by arrows X11 and X12. Water flowing along the arrow X11 flows from the case 61 through the first case connection port 78 into the liquid agent discharge channel 64 (not shown). Water flows along the inclined liquid agent discharge channel 64 along with gravity, and flows into the input channel 82 of the case 61 from the second case connection port 79 . The water flowing along the arrow X12 flows along the inner bottom surface of the case 61 so as to pass under the tips of the three liquid agent injection devices 63 in order. Due to this flow, the liquid agent that has leaked out and adhered to the inner bottom surface of the case 61 can be washed off by the attachment/detachment operation of the tank 62 . The water flowing along the arrow X12 merges with the water flowing along the arrow X11 in the input channel 82 . The water that has flowed into the case 61 along the arrow X2 flows through the input channel 82 toward the connection channel 8 . The water flowing along the arrow X2 merges with the water flowing along the arrows X11 and X12 in the input channel 82. As shown in FIG.

As shown in FIG. 13C, water flowing through the input channel 82 flows from the liquid agent outlet 81 into the outer tank 3 through the connecting channel 8 (FIG. 13B).

Also, returning to FIG. 13A, the second solenoid valve (not shown) of the water supply solenoid valve 66 is opened in order to manually add the softener in the rinsing process. In this state, water flows in the supply channel 67 along the path indicated by the arrow X3. The water flowing along the arrow X3 passes through an opening 97 formed near the manual input portion 65 and flows into the case 61 from the manual input portion 65 together with the softener manually added.

As shown in FIG. 13B , the water that has flowed into the case 61 along the arrow X3 flows along the inner bottom surface B4 of the case 61 toward the input channel 82 . The inner bottom surface B4 is formed on the front side of the inner bottom surfaces B1 to B3 formed immediately below the tank 62, and is inclined downward along the direction from the inner bottom surface B1 to the inner bottom surface B3. Due to the inclination, water flows along the inner bottom surface B4 along with gravity. After that, as shown in FIG. 13C, water flows from the liquid agent outlet 81 into the outer tank 3 through the connection channel 8 (FIG. 13B).

Next, the flow of the automatically injected liquid agent will be described in more detail. By the operation of the control unit in the washing process, the liquid material injection device 63C (Fig. 9) connected to the tank 62C (Fig. 9) containing the detergent is driven. As shown in FIG. 12A , the power section 71 in the liquid injection device 63</b>C rotates, and the rotation of the power section 71 is decelerated via the reduction mechanism 72 and transmitted to the piston 83 of the pump mechanism 73 . When the piston 83 rises from the bottom dead center, the detergent S1 in the tank 62C is sucked into the cylinder 84 through the inlet channel 85. When the piston 83 reaches the top dead center and begins to descend, the detergent S1 in the cylinder 84 is discharged to the liquid agent discharge channel 64 through the outlet channel 86 .

As shown in FIG. 13C, the detergent S1 flows along the inclined liquid agent discharge channel 64 along with gravity. The detergent S<b>1 may join water flowing along the arrow X<b>11 in the liquid agent discharge channel 64 . The detergent S1 flows into the input channel 82 of the case 61 from the second case connection port 79 , is guided to the liquid agent outlet 81 by the inclination of the input channel 82 , and flows into the outer tub 3 via the connection channel 8 .

Further, the liquid agent to be put into the outer tank 3 is determined based on the selected operation course and/or the user's selection operation. When the fashionable washing is selected as the operation course, a neutral detergent may be put into the outer tub 3 . In this case, instead of the liquid agent introduction device 63C of the tank 62C that contains the detergent S1, the liquid agent introduction device 63A of the tank 62A that contains the neutral detergent is driven.

By the operation of the controller in the rinsing process, the liquid material introduction device 63B of the tank 62B containing the softener S2 is driven.

As the washing and rinsing steps are repeated, the amount of solution contained in tank 62 decreases. A user of the washing machine 1 can refill the tank 62 with the liquid agent. When the tank 62 is arranged in the case 61, as shown in FIG. 9, the small lid 88A can be opened to replenish the liquid agent. On the other hand, when the tank 62 is removed from the case 61, the liquid agent can be replenished by removing the lid 88 or opening the small lid 88A.

The above description is summarized to describe the features of the present disclosure.

In the washing machine 1 according to the present embodiment, the liquid injection device 63 and the tank 62 are arranged so that the radial direction R1 and the width direction K of the reduction mechanism 72 are orthogonal. With such a configuration, firstly, it is possible to reduce the dimension of the liquid agent injection device 63 in the width direction K and arrange the tanks 62 at small intervals. Therefore, it is possible to save the space of the automatic loading unit 6 in the width direction K, and to provide three tanks 62 in the limited space in the housing 2 . Secondly, it becomes possible to provide a separate liquid injection device 63 for each tank 62 . Compared to the case where a plurality of tanks 62 share one liquid material introduction device 63, when connecting the liquid material introduction device 63 to one tank 62, the arrangement of the liquid material introduction device 63 due to the relationship with other tanks 62 Restrictions are suppressed. Therefore, it is possible to arrange the tank 62 and the liquid injection device 63 close to each other. Therefore, the pressure loss in the path between the tank 62 and the liquid injection device 63 can be suppressed. Furthermore, when the distance between the tank 62 and the liquid agent injection device 63 is fixed, variations in pressure loss between the tank 62 and the liquid agent injection device 63 can be suppressed. Therefore, the efficiency and stability of liquid agent injection by the liquid agent injection device 63 can be improved.

Also, in order to further increase the volume of the tank 62, the depths L1, L2 and L3 of the tank 62 are increased on the outer side K1. With such a configuration, the total volume of the tank 62 inside the case 61 can be increased. Therefore, the number of times the user refills the tank 62 is reduced. Also, the liquid medicine can be stored in an appropriate volume according to the frequency of use of the liquid medicine. Therefore, the usability of the automatic injection unit 6 is improved. As described above, the washing machine 1 according to this embodiment can improve the function of the automatic loading unit 6 .

[Effect 1]
According to the washing machine 1 according to Embodiment 1, the following effects can be obtained.

As described above, the washing machine 1 of this embodiment includes the outer tub 3, at least two tanks 62, and at least two liquid agent dispensers 63 (automatic liquid dispensers). The outer tub 3 is elastically supported within the housing 2 . At least two tanks 62 contain the liquid agent to be supplied to the outer tank 3 and are arranged along the width direction K (first direction). At least two liquid agent injection devices 63 are connected to connection portions 76 formed in the respective tanks 62 and arranged along the width direction K. As shown in FIG. Each liquid agent injection device 63 has a power section 71 , a speed reduction mechanism 72 engaged with the power section 71 , and a pump mechanism 73 connected to the output shaft of the speed reduction mechanism 72 . A radial direction R1 of the speed reduction mechanism 72 is substantially perpendicular to the width direction K. As shown in FIG.

With such a configuration, in a configuration in which two liquid agent injection devices 63 are provided, it is possible to suppress the dimension of the liquid agent injection device 63 in the width direction K, so that the tanks 62 can be arranged with a small interval. become. Therefore, space saving of the automatic loading unit 6 in the width direction K can be realized. Furthermore, since each of the tanks 62 has an individual liquid material introduction device 63, compared to the case where the tanks 62 share one liquid material introduction device, a configuration in which the tank 62 and the liquid material introduction device 63 are brought closer to each other is possible. Therefore, the pressure loss between the tank 62 and the liquid agent injection device 63 can be suppressed, and the efficiency and stability of the liquid agent injection by the liquid agent injection device 63 can be improved. Therefore, the function of the automatic injection unit 6 can be improved.

Further, the washing machine 1 of the present embodiment is provided with three tanks 62 and three liquid agent injection devices 63 .

With such a configuration, it is possible to suppress the dimension of the liquid agent injection device 63 in the width direction K, so that three tanks 62 each having an individual liquid agent injection device 63 can be provided even in a limited space. .

Further, in the washing machine 1 of the present embodiment, the connecting portion 76 formed on the tank 62 is formed on the rear surface 90 of the tank 62 .

With such a configuration, the liquid material injection device 63 is arranged to face the rear surface 90 of the tank 62 forming the connecting portion 76 . Placing the liquid dosage device 63 with the pumping mechanism 73 immediately behind the back surface 90 of the tank 62 allows for an equidistant arrangement between each tank 62 and the pumping mechanism 73 . Therefore, the pressure loss due to the liquid agent injection device 63 is suppressed, and the predetermined amount of liquid agent can be injected with higher accuracy. Further, by shortening the distance between the tank 62 and the liquid injection device 63, the torque required in the power section 71 can be reduced. Therefore, the power section 71 having a smaller dimension in the width direction K can be employed. As a result, space saving and cost reduction in the width direction K in the power unit 71 can be achieved.

In addition, in the washing machine 1 of the present embodiment, the connecting portions 76 formed in the respective tanks 62 are arranged at different heights when the tanks 62 are mounted.

With such a configuration, the liquid agent injection device 63 connected to the connection portion 76 is arranged at different heights, and the flow path (for example, the liquid agent discharge flow path 64) on the downstream side of the liquid agent injection device 63 is inclined. configuration becomes possible. The slope of the channel can facilitate fluid flow.

Further, in the washing machine 1 of the present embodiment, the rotating shaft V1 of the power unit 71 and the output shaft V2 of the reduction mechanism 72 extend along the width direction K. As shown in FIG.

With such a configuration, the radial direction R1 of the power section 71 and the speed reduction mechanism 72 is along the direction perpendicular to the width direction K. As shown in FIG. Even when the power section 71 and the speed reduction mechanism 72 have large dimensions in the radial direction R1, it is possible to reduce the dimensions of the liquid agent injection device 63 in the width direction K.

In addition, in the washing machine 1 of the present embodiment, the pump mechanism 73 is connected to the deceleration mechanism 72 and has a piston 83 that reciprocates vertically and a cylinder 84 that houses the piston 83 .

The outer tank 3 elastically supported in the housing 2, at least two tanks 62 containing the liquid agent to be supplied to the outer tank 3 and arranged along the width direction K (first direction), and the respective tanks. and at least two liquid agent injection devices 63 (automatic liquid agent injection devices) connected to a connection portion 76 formed in the body 62 and arranged along the width direction K. , and a pump mechanism 73 that is driven by a motor 70 to suck and discharge the liquid agent from the tank 62 , and the motor 70 is connected to the pump mechanism 73 from the width direction K.

With such a configuration, even when the motor 70 has a large dimension in the direction orthogonal to the direction in which it is connected to the pump mechanism 73, it is possible to arrange the tanks 62 at small intervals.

The outer tank 3 elastically supported in the housing 2, at least two tanks 62 containing the liquid agent to be supplied to the outer tank 3 and arranged along the width direction K (first direction), and the respective tanks. At least two liquid agent injection devices 63 (automatic liquid agent injection devices) connected to a connection portion 76 formed in the tank 62 and arranged along the width direction K, and the connection portion 76 extends in the lateral direction of the tank 62. , and each liquid agent injection device 63 is arranged so as to face the surface including the lateral direction of the tank 62 in which the connecting portion 76 is formed.

With such a configuration, the liquid agent injection device 63 can be arranged immediately after the surface including the lateral direction of the tank 62, and the distances between the respective tanks 62 and the liquid agent injection device 63 can be made equal.

The tank 62 is detachably attached to the liquid agent injection device 63 along the front-back direction M (second direction), and the tank 62 and the liquid agent injection device 63 are arranged along the front-back direction M.

With such a configuration, the tanks 62 and the liquid injection devices 63 can be placed close to each other.

The tank 62 is formed such that the front-rear direction M is the longitudinal direction.

With such a configuration, the dimension of the tank 62 in the width direction K can be suppressed.

[Effect 2]
The washing machine 1 of this embodiment includes an outer tub 3, a tank 62A (first tank), and a tank 62B (second tank). The outer tub 3 is elastically supported within the housing 2 . The tank 62A accommodates the liquid agent to be supplied to the outer tank 3. As shown in FIG. The tank 62B accommodates the liquid agent to be supplied to the outer tank 3, and is arranged side by side with the tank 62A. The depth of the tank 62B is greater than the depth of the tank 62A along the outer circumference of the outer tub 3.

Such a configuration makes it possible to increase the total volume of the two tanks 62A, 62B. Also, different types of liquid agents can be stored in the housing 2 in different amounts. Therefore, the function of the automatic injection unit 6 can be improved.

In addition, in the washing machine 1 of the present embodiment, the tank 62B is arranged on the outside K1 (along the first direction away from the central axis V0 passing through the bottom 36 of the outer tub 3) with respect to the tank 62A.

With such a configuration, it is possible to increase the total volume of the two tanks 62A and 62B along the outer circumference of the outer tub 3 descending to the outside K1.

The washing machine 1 of the present embodiment further includes a liquid agent injection device 63A (first automatic liquid agent injection device) and a liquid agent injection device 63B (second automatic liquid agent injection device). The liquid injection device 63A is connected to a connection portion 76A (first connection portion) formed in the tank 62A. The liquid injection device 63B is connected to a connection portion 76B (second connection portion) formed in the tank 62B.

With such a configuration, the tanks 62 each have their own liquid material introduction device 63, so compared to the case where the tanks 62 share one liquid material introduction device, the configuration in which the tanks 62 and the liquid material introduction devices 63 are brought closer to each other is achieved. be possible. A pressure loss between the tank 62 and the liquid material injection device 63 is suppressed, and a predetermined amount of liquid material can be injected with higher accuracy.

Moreover, in the washing machine 1 of the present embodiment, the depth of the connecting portion 76B is greater than the depth of the connecting portion 76A .

With such a configuration, it is possible to increase the volume of the tank 62B while promoting the ejection of the liquid agent from the tank 62B . In addition, a configuration in which the flow paths (for example, the liquid agent discharge flow paths 64) on the downstream side of the tanks 62A and 62B are inclined is possible.

In addition, in the washing machine 1 of the present embodiment, the tank 62A and the tank 62B have lids formed with a common shape to cover the upper portions of the respective tanks.

With such a configuration, the lid 88 has compatibility between the tanks 62A and 62B, so that the usability of the tanks 62A and 62B can be improved.

Moreover, the washing machine 1 of the present embodiment further includes a tank 62C (third tank) and a liquid agent injection device 63C (third automatic liquid agent injection device). The tank 62C contains the liquid agent and is arranged on the side opposite to the tank 62A with respect to the tank 62B. The liquid injection device 63C is connected to a connection portion 76C (third connection portion) formed in the tank 62C. The depth of tank 62C is greater than the depth of tank 62B.

With such a configuration, the total volume of the three tanks 62A, 62B, 62C can be further increased.

The outer tank 3 elastically supported in the housing 2, the tank 62A (first tank) containing the liquid agent to be supplied to the outer tank 3, and the liquid agent to be supplied to the outer tank 3 are accommodated in the tank 62A. , a tank 62C (second tank) arranged along the width direction K (first direction) away from the central axis V0 passing through the bottom of the outer tank 3; a case 61 for accommodating the tanks 62A and 62C; The case 61 has a region P1 (first region) that houses the tank 62A and a region P3 (second region) that houses the tank 62C. , and the depth of the region P3 is greater than the depth of the region P1, and the inner bottom surface B3 of the region P3 is formed with an input channel 82 through which the water injected from the water injection part flows down.

With such a configuration, the input flow path 82 is formed, and the space immediately below the tank 62C can be effectively utilized.

The gap between the input channel 82 and the bottom surface of the tank 62C is larger than the gap between the inner bottom surface B1 of the region P1 and the bottom surface of the tank 62A.

With such a configuration, even when the depth L3 of the tank 62C is greater than the depth L1 of the tank 62A, the input flow path 82 can be easily formed.

A manual injection section 65 that stores a manually injected liquid agent is provided upstream of the injection channel 82 , and a water supply solenoid valve 66 supplies water to the manual injection section 65 .

Such a configuration allows automatic or manual dosing of liquid agents. Furthermore, by supplying water to the manual injection unit 65, it is possible to suppress residual of the liquid agent in the manual injection unit 65.

Note that the present disclosure is not limited to the above-described embodiments, and can be implemented in various other modes.

In addition, although the case where the automatic injection unit 6 has the three tanks 62 was demonstrated in embodiment, it is not limited to such a case. The automatic dosing unit 6 may have two tanks 62 or four or more tanks 62 .

In addition, in the embodiment, an example in which the tank 62 is arranged along the width direction K has been described, but the present invention is not limited to this. For example, when the outer tank 3 is elastically supported with respect to the installation surface of the housing 2 so as to be inclined downward toward the rear side M2, the tank 62 may be arranged along the front-rear direction M. In other words, the tank 62B may be arranged along the central axis V0 passing through the bottom 36 of the outer tub 3 with respect to the tank 62A. In this case, the stepped arrangement of the tank 62 is lowered toward the rear side M2, and the liquid agent discharge channel 64 is inclined downward toward the rear side M2. With such a configuration as well, the total volume of the tank 62 can be increased.

In the embodiment, an example in which the depths L1, L2, and L3 of the tanks 62A, 62B, and 62C change stepwise outward K1 along the width direction K has been described, but the present invention is not limited to this. The depth of the tanks 62B and 62C should be greater than the depth of the tank 62A. For example, the depths of tanks 62B and 62C may be equal. On the other hand, if the depths of the tanks 62A, 62B, and 62C are different, it is possible to prevent mistakes in mounting positions of the tanks 62A, 62B, and 62C in the case 61 .

In the embodiment, the pump mechanism 73 is described as a positive displacement pump, but it is not limited to this. The pump mechanism 73 may be an aspirator-type pump.

In the embodiment, an example in which the directions in which the pump mechanisms 73 extend (vertical direction), that is, the directions in which the pistons 83 move are aligned in the three liquid agent injection devices 63 has been described, but the present invention is not limited to this. For example, the direction in which any pump mechanism 73 extends may be the front-rear direction M. On the other hand, if the pump mechanisms 73 extend in the same direction, the power section 71 can be arranged in the gap between the adjacent pistons 83, and the space can be effectively used.

Note that the motor 70 may be attached to the pump mechanism 73 from the center side K2 or from the outside K1. Also, the motor 70 attached from the outer side K1 and the motor 70 attached from the center side K2 may be mixed.

In the embodiment, the connection direction between the tank 62 and the liquid injection device 63 is the front-rear direction M, but the connection direction is not limited to this. For example, the connection direction between the tank 62 and the liquid injection device 63 may be along the vertical direction as in Modification 1 described later.

[Modification 1]
FIG. 14 is a schematic cross-sectional view of an automatic feeding unit 106 according to Modification 1. As shown in FIG. As shown in FIG. 14, Modification 1 differs from the automatic loading unit 6 of the embodiment in that the tank 162 is removed from the case 161 in the vertical direction (Z direction). In order to remove the tank 162 in the vertical direction, a connecting portion 176 for connecting with the liquid material injection device 163 is formed on the bottom surface of the tank 162 . Even in such a configuration, the radial direction R1 of the speed reduction mechanism 72 is perpendicular to the width direction K, so that the small pitch arrangement of the tanks 62 and the functional improvement of the automatic loading unit 6 can be realized. Also, the cylinder 184 extends in the horizontal direction (X direction), and the piston 183 moves in the horizontal direction. With such a configuration, it is possible to suppress an increase in the size of the automatic loading unit 106 in the vertical direction.

In the embodiment, an example in which the liquid agent injection device 63 is connected to the liquid agent discharge channel 64 on the outlet side has been described, but the present invention is not limited to this. For example, as in Modification 2 described later, the liquid injection device 63 may be connected to the case 61 directly below the tank 62 on the outlet side.

[Modification 2]
FIG. 15 is a schematic cross-sectional view of an automatic feeding unit 206 according to modification 2. As shown in FIG. As shown in FIG. 15, Modified Example 2 differs from the automatic injection unit 6 of the embodiment in that the liquid agent injection device 263 is directly connected to the case 261 on the outlet side. Even in such a configuration, the radial direction R1 of the speed reduction mechanism 72 is perpendicular to the width direction K, so that the small pitch arrangement of the tanks 62 and the functional improvement of the automatic loading unit 6 can be realized. Further, instead of providing the liquid agent discharge channel 64 of the embodiment, the inner bottom surface B200 directly below the tank 262 forms the liquid agent discharge channel 264 in the case 261 . With such a configuration, the structure of the automatic loading unit 206 can be simplified, and the number of parts and manufacturing cost can be reduced.

Although the present disclosure has been fully described in connection with preferred embodiments and with reference to the accompanying drawings, various variations and modifications will become apparent to those skilled in the art. Such variations and modifications are to be included therein insofar as they do not depart from the scope of the invention as set forth in the appended claims.

Since the washing machine of the present disclosure can improve the function of the configuration related to liquid feeding, it can be ) is useful as

Reference Signs List 1 washing machine 2 housing 3 outer tub 4 inner tub 5 drive unit 6 automatic input unit 8 connection channel 10 water supply port 11 drain valve 61 case 62 tank 63 liquid material input device 64 liquid discharge flow path 65 manual input part 66 water supply electromagnetic valve 71 power section 72 reduction mechanism 73 pump mechanism 76 connection section 77, 78, 79 connection port 83 piston 84 cylinder K width direction M front-back direction

Claims (6)

an outer tank elastically supported in the housing;
a first tank containing a liquid agent to be supplied to the outer tank;
a second tank that accommodates the liquid agent to be supplied to the outer tank and is arranged side by side with the first tank;
a first automatic liquid injection device that is connected to a first connection formed at the deepest part of the first tank and sucks liquid from the first connection ;
a second automatic liquid injection device that is connected to a second connection formed at the deepest part of the second tank and sucks the liquid from the second connection ;
with
The first automatic liquid agent injection device and the second automatic liquid agent injection device each have a pump mechanism, which is a positive displacement pump that sucks up and discharges the liquid agent, and the pump mechanism has an outlet flow path for discharging the liquid agent from the inside. including
The first automatic liquid agent injection device is arranged at a position where the end of the outlet channel is lower than the first connecting portion, and the second automatic liquid agent injection device is arranged such that the end of the outlet channel is the second 2 It is arranged at a position below the connecting part,
the depth of the second tank is greater than the depth of the first tank;
the depth of the second connecting portion is greater than the depth of the first connecting portion;
The washing machine , wherein the second automatic liquid agent injection device is arranged below the first automatic liquid agent injection device . 2. The washing machine according to claim 1, wherein the distance between said first connection and said first automatic fluid dispenser is equal to the distance between said second connection and said second automatic fluid dispenser. The washing machine according to claim 1 or 2 , wherein said second tank is arranged with respect to said first tank along a first direction away from a central axis passing through the bottom of said outer tub. The outer tank is inclined backward with respect to the installation surface of the housing,
The washing machine according to claim 1 or 2 , wherein said second tank is arranged along a central axis passing through the bottom of said outer tub with respect to said first tank. Said 1st tank and said 2nd tank are washing machines as described in any one of Claim 1 to 4 which have a cover formed with a common shape which covers each upper part. a third tank containing a liquid agent and disposed on the opposite side of the second tank from the first tank;
a third automatic liquid injection device connected to a third connection formed in the third tank;
further having
The washing machine according to any one of claims 1 to 5 , wherein the depth of said third tank is greater than the depth of said second tank.

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