WO2018078981A1

WO2018078981A1 - Washing machine

Info

Publication number: WO2018078981A1
Application number: PCT/JP2017/027210
Authority: WO
Inventors: 前田　一憲; 徹岩佐
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2016-10-24
Filing date: 2017-07-27
Publication date: 2018-05-03
Also published as: TWI713765B; TW201816222A; CN112609402A; CN112609402B; CN109477286A; CN109477286B

Abstract

This washing machine comprises a washing drum (1) in which laundry (55) is accommodated, and the following are arranged on the left and right with respect to the center of rotation of the washing drum (1): a first water supply section (48) that wets the laundry (55) with sprinkled water (50) and that is arranged in a position eccentric from the center of rotation of the washing drum (1); and a second water supply section (49) that is arranged in a position substantially symmetrical to the first water supply section (48) with respect to the center of rotation of the washing drum (1). As a result, it is possible to uniformly wet the laundry (55) with sprinkled water (50) from the left and from the right even when the water pressure of tap water is low. It is thus possible to provide a washing machine that can improve washing performance.

Description

Washing machine

[Technical Field] The present invention relates to a water supply device for a washing machine, which has a simple configuration and can uniformly apply shower water to laundry.

Conventionally, a washing machine having a water supply device includes a washing tub, an upper housing, a lid, a detergent storage case, a flow path structure part, a detergent dissolving part, a water supply part, and the like. The washing tub is provided inside the washing machine body and performs washing and dehydration. The upper housing is provided on the upper part of the washing machine body and constitutes a part of the washing machine body. The upper housing has a clothes insertion port for putting clothes into and out of the washing tub. The lid covers the clothes insertion opening so as to be freely opened and closed.

The detergent storage case is placed near the clothing entry port. The flow path structure is disposed above the detergent storage case and supplies water to the detergent storage case. The detergent dissolving part is disposed below the detergent storage case, forms a detergent aqueous solution while mixing water and detergent, and causes the detergent aqueous solution to flow down. A water supply part is arrange | positioned in the clothing inlet vicinity, and sprays shower water on clothing. At this time, the water supply unit pumps up the water in the washing tub with a pump, pressurizes it, and supplies it to the washing tub. Thereby, it is comprised so that shower water may be spread and shower water is uniformly applied to laundry (for example, refer to patent documents 1 or patent documents 2).

Hereinafter, the configuration of a general top load type washing machine will be described with reference to FIGS. 13 to 17.

FIG. 13 is a main cross-sectional view when the detergent storage case is closed by a general top load type washing machine. FIG. 14 is a cross-sectional perspective view of a main part of a water supply unit of the washing machine. FIG. 15 is a main cross-sectional view when the detergent storage case of the washing machine is pulled out. FIG. 16 is an exploded perspective view of a main part of the washing machine. FIG. 17 is a cross-sectional view of a main part of the washing machine.

As shown in FIG. 13, the washing machine main body 102 accommodates a washing tub 101 in a rotatable manner. An upper housing 103 is mounted on the upper part of the washing machine body 102 so as to substantially cover the entire upper part of the washing machine body 102. The clothing insertion port 104 is formed integrally with the upper housing 103 at the approximate center of the upper housing 103. That is, the clothing input port 104 extends downward and is formed in the upper housing 103 above the washing tub 101. The lid 105 is attached to the upper housing 103 so as to be openable and closable, and covers the entire upper part of the clothing input port 104. The washing tub 101 is rotated and stopped via the motor 110.

The detergent storage case 106 is disposed in the vicinity of the clothing input port 104 of the upper housing 103 so as to be freely drawable, and stores detergent and the like.

The flow path structure 107 is provided above the detergent storage case 106 and is configured to guide tap water and flow down to each part of the detergent storage case 106.

Specifically, the flow path structure portion 107 includes a flow path structure portion upper surface 107a and a flow path structure portion lower surface 107b. The channel structure upper surface 107 a constitutes the upper surface of the channel structure 107 and prevents water leakage from the channel structure 107. The channel structure lower surface 107 b constitutes the lower surface of the channel structure 107 and allows water supplied to the detergent storage case 106 to flow down.

The detergent dissolution unit 108 is provided below the detergent storage case 106. The detergent dissolution unit 108 creates a detergent aqueous solution 109 from tap water and detergent mixed in the detergent storage case 106.

The flow path structure unit upper surface 107a and the detergent dissolving unit 108 are integrally formed, and the laundry tub 101 side is open, and the opposite side of the laundry tub 101 is configured with a bottom.

As a result, even when the water pressure of tap water is high and the flow rate flowing through the flow path structure 107 is large, the detergent aqueous solution 109 overflowing from the detergent storage case 106 and the detergent dissolving part 108 is transferred to the washing machine main body 102 and the upper casing 103. Prevent overflowing. As a result, it is possible to prevent the occurrence of defective insulation of electrical components such as the motor 110.

Further, the detergent storage case 106 includes a first drainage portion 111 at one end located on the opposite side to the clothing insertion port 104. The first drainage unit 111 drains the detergent aqueous solution 109 to the detergent dissolution unit 108.

The detergent dissolving part 108 includes a second drainage part 112 at one end located on the clothing inlet 104 side. The second drainage unit 112 drains the detergent aqueous solution 109 that has flowed down the surface of the detergent dissolution unit 108 to the clothing input port 104.

At this time, the detergent dissolving portion 108 is formed to be inclined downward from the first drainage portion 111 toward the second drainage portion 112. Further, the second drainage portion 112 is disposed outside the clothing input port 104 and inside the washing tub opening inner wall 113 at the opening end of the washing tub 101 on the clothing input port 104 side. Thereby, the detergent aqueous solution 109 is drained from the opening side of the second drainage part 112 to the inside of the washing tub opening inner wall 113. Therefore, the detergent aqueous solution 109 does not flow down between the washing tub 101 and the washing machine main body 102. As a result, it is possible to prevent the detergent aqueous solution 109 from being applied to the electric parts such as the motor 110 and to prevent the occurrence of insulation failure.

Further, the detergent dissolving portion 108 is held from below by the holding member 114. The holding member 114 is assembled in advance in the state of electrical components such as a lead wire and a sensor (not shown) in addition to the detergent dissolving portion 108. Then, the holding member 114 in the unit state, the detergent dissolving portion 108, and the like are attached to the upper housing 103 by a claw, a screw or the like not shown. Thereby, the holding member 114, the detergent dissolution part 108, etc. can be easily attached to the upper housing | casing 103 in a unit state.

Further, as shown in FIG. 14, the detergent dissolving portion 108 includes a rib 120 that extends from the bottomed side of the detergent dissolving portion 108 toward the open side. On the other hand, the detergent storage case 106 has a slit 121 opened at the bottom. Then, the rib 120 of the detergent dissolving portion 108 is inserted into the slit 121 of the detergent storage case 106. Thereby, when the detergent aqueous solution 109 distribute | circulates the clearance gap between the rib 120 and the slit 121, a detergent is efficiently dissolved with water. As a result, the washing performance of the laundry is improved.

Also, the rib 120 slides in the slit 121 every time the user inserts and removes the detergent storage case 106. Thereby, the sticking of the detergent between the rib 120 and the slit 121 can be prevented, and the clogging of the slit 121 can be prevented.

As described above, the detergent dissolving portion 108 is formed so as to be inclined downward from the first drainage portion 111 toward the second drainage portion 112. At this time, the rib 120 is disposed so as to extend from the bottomed side of the detergent dissolving portion 108 toward the open side. Thereby, at the time of shaping | molding of the detergent melt | dissolution part 108, the drawing direction of a metal mold | die and the extending direction of the rib 120 can be made into the same direction. As a result, the detergent dissolving part 108 is easily formed by molding.

Further, as shown in FIG. 15, the detergent dissolving part includes a sliding surface 130. The sliding surface 130 slidably supports the sliding surface 131 of the detergent storage case 106.

Claws

135a and 135b are disposed on the left and right sides of the flow path structure 107 on the front side. The

claws

135a and 135b come into contact with the edge portion 134 of the detergent storage case 106 when the detergent storage case 106 is most pulled out. Thereby, the

claws

135a and 135b prevent the detergent storage case 106 from being pulled out further.

That is, when the detergent is put into the detergent storage case 106, the detergent 135 is pulled out until the

claws

135a and 135b of the flow path structure 107 and the edge 134 of the detergent storage case 106 come into contact with each other. As a result, the position of the detergent storage case 106 is regulated to eliminate rattling and make it easier to put in the detergent.

On the other hand, when cleaning the detergent storage case 106, the user pulls the detergent storage case 106 to the contact position, and then lifts the detergent storage case 106 diagonally upward. Then, the contact between the edge 134 of the detergent storage case 106 and the

claws

135a and 135b of the flow path structure 107 is removed. Thereby, the detergent storage case 106 can be easily removed.

As described above, the detergent charging structure in a general top load type washing machine is configured.

Next, another conventional washing machine, for example, a front loading type washing machine, will be described with reference to FIG.

As shown in FIG. 16, the front loading type washing machine has a water supply device including a flow path structure portion 107 and a vertically long detergent storage case 106 as in the washing machine shown in FIG. 15.

The claw 135 of the flow path structure 107 is provided on the surface of the flow path structure 107 facing the detergent storage case 106 in the center. When the detergent storage case 106 is pulled out the most, the tab 137 of the detergent storage case comes into contact with the tab 135 of the flow path structure 107. When the claw 137 of the detergent storage case 106 is pulled out to a position where it comes into contact with the claw 135, the positions of the left and right wall surfaces of the rear portion of the detergent storage case 106 are regulated by the inner wall of the detergent dissolving portion 108. As a result, the detergent housing case 106 is prevented from rattling and the detergent can be easily introduced.

On the other hand, when the detergent storage case 106 is removed from the flow path structure 107, the beam 136 of the detergent storage case 106 that elastically holds the claw 137 of the detergent storage case 106 is pushed down. As a result, the contact between the claw 137 of the detergent storage case 106 and the claw 135 of the flow path structure 107 is released. Therefore, the detergent storage case 106 can be easily removed.

Further, as shown in FIG. 17, the washing tub 101 is provided with a water supply unit 151 for pouring shower water 150 onto clothing. The water supply unit 151 pressurizes the water in the washing tub 101 pumped up by a circulation pump (not shown) and supplies the water to the laundry 155.

The water supply unit 151 includes a circular first discharge port 152 and a second discharge port 153. The first discharge port 152 is provided on the bottom surface of the water supply unit 151. The first discharge port 152 is provided in a substantially horizontal direction on the outer peripheral surface of the water supply unit 151. A throttle unit 154 is provided in front (upstream side) of the first discharge port 152 and the second discharge port 153 of the water supply unit 151. The throttle unit 154 acts to increase the flow rate of water or the like supplied to the water supply unit 151.

From the first discharge port 152, shower water 150a spreading downward is ejected. On the other hand, shower water 150b spreading in the horizontal direction is ejected from the second discharge port 153. Thereby, the shower water 150 can be uniformly poured on the laundry 155 in the washing tub 101. As a result, the laundry 155 can be efficiently washed.

However, in the above conventional washing machine, if the flow rate sucked up from the washing tub 101 by the circulation pump is increased in order to spread the shower water 150, lint discharged from the laundry 155 during washing is also pumped up in large quantities. For this reason, there is a risk that problems such as clogging of water channels may occur.

In this case, conventionally, in order to avoid clogging of the water channel lint, a configuration in which the tap water is sent to the water supply unit 151 and the shower water 150 is ejected instead of the circulation pump is conceivable.

However, in the washing machine having the conventional configuration, the opening area of the first discharge port 152 and the second discharge port 153 is large with respect to the cross-sectional area of the throttle portion 154. Therefore, when the water pressure of tap water is low and the flow rate is low, the water pressure tends to decrease due to the orifice effect. Thereby, each

shower water

150a, 150b is hard to spread, and it is hard to immerse the whole laundry 155 uniformly.

Therefore, in the state where the water pressure of tap water is low, the area of the first discharge port 152 and the second discharge port 153 is reduced so that the shower water 150 spreads, and the outlet area of the flow path structure unit 107 is reduced. Can be considered. However, in this case, the pressure inside the channel structure 107 becomes too high in a state where the water pressure of the tap water is high. For this reason, measures such as a configuration with a material that can withstand high pressure or an increase in welding strength are required for the flow path structure 107. As a result, commercialization as a general-purpose product was difficult.

JP 2016-106673 A JP 2012-223305 A

The present invention provides a washing machine having a simple configuration and capable of evenly washing shower water evenly even when the water pressure of tap water is low and washing efficiently.

The washing machine of the present invention is configured by arranging water supply portions for applying shower water to clothing on the left and right sides of the washing tub. Thereby, even when the water pressure of tap water is low, shower water can be uniformly applied to the clothes from the left and right water supply units, and the clothes can be efficiently washed.

FIG. 1 is a side sectional view of a washing machine according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a principal part showing a state where the detergent storage case of the washing machine is mounted. FIG. 3 is a cross-sectional side view of a main part showing a state where the detergent storage case of the washing machine is mounted. FIG. 4 is a cross-sectional perspective view of a main part showing a state where the detergent storage case of the washing machine is mounted. FIG. 5 is a cross-sectional perspective view of the main part showing a state where the detergent storage case of the washing machine is removed. FIG. 6 is a cross-sectional perspective view of a main part showing a state in which the detergent storage case of the washing machine is pulled out. FIG. 7 is a perspective view of a main part of the washing machine. FIG. 8 is an explanatory diagram of a schematic configuration of the washing machine. FIG. 9 is an operation explanatory view of the washing machine. FIG. 10 is an explanatory view of the operation of the washing machine. FIG. 11 is a cross-sectional perspective view of a main part of the washing machine. FIG. 12 is a schematic block diagram of the washing machine. FIG. 13 is a side sectional view of a conventional washing machine. FIG. 14 is a cross-sectional perspective view of a main part of a conventional washing machine. FIG. 15 is a cross-sectional view of a main part of a conventional washing machine. FIG. 16 is an exploded perspective view of a conventional washing machine. FIG. 17 is a cross-sectional view of a main part of a conventional washing machine.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
Hereinafter, a washing machine according to an embodiment of the present invention will be described with reference to FIGS. 1 to 12.

FIG. 1 is a side sectional view of a washing machine according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a principal part showing a state where the detergent storage case of the washing machine is mounted. FIG. 3: is principal part sectional drawing which shows the state which mounted | wore the detergent storage case of the washing machine. FIG. 4 is a cross-sectional perspective view of a main part showing a state where the detergent storage case of the washing machine is mounted. FIG. 5 is a cross-sectional perspective view of the main part showing a state where the detergent storage case of the washing machine is removed. FIG. 6 is a cross-sectional perspective view of a main part showing a state in which the detergent storage case of the washing machine is pulled out. FIG. 7 is a perspective view of the main part of the washing machine, FIG. 8 is a schematic configuration explanatory view of the washing machine, and FIGS. 9 and 10 are operation explanatory views of the washing machine. FIG. 11 is a cross-sectional perspective view of a main part of the washing machine. FIG. 12 is a schematic block diagram of the washing machine.

In the following, the arrangement side of each component is set such that the installation side of the detergent storage case 6 of the washing machine is the rear, the opening / closing side of the lid 5 is the front, the right side is the right side and the left side is the left side. Will be explained. In the vertical direction, the lid 5 side of the washing machine will be described as the upper side, and the motor 10 side will be described as the lower side.

As shown in FIG. 1, the washing machine main body 2 stores the washing tub 1 while rotatably supporting the washing tub 1. On the upper part of the washing machine body 2, an upper housing 3 that covers substantially the entire upper part of the washing machine body 2 is mounted. The upper housing 3 is formed by molding, for example, polypropylene. The clothing input port 4 is formed by being integrally molded with the upper housing 3 in the approximate center (including the center) of the upper housing 3. The clothing input port 4 extends downward and is formed in the upper housing 3 above the washing tub 1. The lid 5 is attached to the upper housing 3 so as to be freely opened and closed, and is attached so as to cover the entire upper part of the clothing insertion port 4.

The detergent storage case 6 is disposed in the vicinity of the clothing inlet 4 of the upper housing 3 so as to be freely drawable, and stores detergent and the like.

The flow path structure portion 7 is provided above the detergent storage case 6 and has a configuration for guiding tap water to flow down to each portion of the detergent storage case 6.

Specifically, the channel structure unit 7 includes a channel structure unit upper surface 7a and a channel structure unit lower surface 7b. The channel structure upper surface 7 a constitutes the upper surface of the channel structure 7 and prevents water leakage from the channel structure 7. The flow channel structure lower surface 7 b constitutes the lower surface of the flow channel structure 7 and allows water supplied to the detergent storage case 6 to flow down. The channel structure upper surface 7a and the channel structure lower surface 7b are formed in a substantially plate shape (including a plate shape) having relatively short ribs 7b1 necessary for the channel configuration on a plane. .

The detergent dissolving part 8 is configured by extending a part of the upper housing 3 downward on the lower side of the detergent housing case 6. The detergent dissolving part 8 is composed of a flowing water surface 8a and a peripheral wall 8b. The flowing water surface 8 a is provided so as to be inclined downward toward the clothing insertion port 4. The peripheral wall 8b is provided in a state of standing substantially vertically (including vertical) on a surface other than the surface facing the clothing insertion port 4 around the water surface 8a of the detergent dissolving portion.

In addition, the flow path structure part upper surface 7a and the flow path structure part lower surface 7b which comprise the flow path structure part 7 are integrated by welding, for example, and are formed with a watertight structure. The flow path structure portion 7 is disposed so as to cover the upper portion of the detergent dissolving portion 8 and is fixed to the upper housing 3 with a claw or a screw (not shown).

The detergent storage case 6 mixes tap water and detergent to produce a detergent aqueous solution 9.

The washing tub 1 is rotated and stopped via the motor 10.

Further, the detergent storage case 6 includes a first drainage portion 11 configured by partially lowering one end located on the side opposite to the clothing insertion port 4. The first drainage unit 11 drains the detergent aqueous solution 9 into the detergent dissolution unit 8. The drained detergent aqueous solution 9 is drained from the second drainage portion 12, which is one end located on the clothing inlet 4 side of the water flow surface 8 a of the detergent dissolving portion 8, to the clothing inlet 4. At this time, the flowing water surface 8a of the detergent dissolving portion 8 is formed so as to incline downward from the first drainage portion 11 toward the second drainage portion 12 as described above. The opening 32 of the second drainage section 12 is an outer wall of the washing tub opening of the washing tub 1 that is on the outer side of the clothes insertion opening 4 as viewed from the center of the washing tub 1 and that is the opening end on the clothes insertion opening 4 side. 13 on the inner side.

Furthermore, as shown in FIG. 2, the detergent storage case 6 includes a first storage chamber 14 for storing a powder detergent and the like, and a second storage chamber 15 for storing a liquid softener and the like.

The flow path structure lower surface 7b is provided with a first waterproof wall 16 that extends downward toward a peripheral wall surface of the first storage chamber 14 of the detergent storage case 6 in part. The first waterproof wall 16 is provided in the vicinity of the upper part of the peripheral wall surface of the first storage chamber 14 on almost the entire circumference excluding the first drainage part 11.

Further, the flow channel structure lower surface 7b is provided with a second waterproof wall 17 that extends downward toward the peripheral wall 8b of the detergent dissolving part 8 in part. The flow path structure portion lower surface 7b is provided in close proximity to the upper part of the peripheral wall 8b of the detergent dissolving portion on almost the entire circumference excluding the second waterproof wall (waterproof portion) 17 and the second drainage portion 12.

1, electrical components such as a water supply valve 18, a control unit and an input unit (not shown), and an operation unit 19 including a display unit are arranged above the flow path structure unit 7. The water supply valve 18 allows tap water or the like to flow down the flow path structure 7 by an openable and closable operation. The control unit controls operations such as water supply, washing, and dehydration of the washing machine. The input unit accepts a user instruction. The operation unit 19 notifies the user of the driving situation and the like via the display unit. The water supply valve 18 and the operation part 19 are arrange | positioned behind the upper housing | casing 3, and are connected by the wiring etc. which are not shown in figure. At this time, the water supply valve 18 and the operation unit 19 are arranged close to each other to shorten the wiring. Thereby, manufacture is easy and the malfunctioning of the operation part 19 by the influence of the electromagnetic waves from the outside etc. can be prevented.

The flow path structure lower surface 7 b further has a plurality of first flow holes 25 for supplying water to the first storage chamber 14. The detergent stored in the first storage chamber 14 is reliably mixed with water by the water flowing down from the first flow down hole 25. Thereby, the undissolved residue of the detergent is prevented, and the detergent aqueous solution 9 is generated. The generated detergent aqueous solution 9 flows down from the first drainage unit 11 to the second drainage unit 12. In the meantime, the detergent aqueous solution 9 flows on the water flow surface 8a of the detergent dissolving part 8 which is configured integrally with the upper housing 3 without a joint. Thereby, melt | dissolution with the water and detergent in the detergent aqueous solution 9 is further accelerated | stimulated. As a result, the cleaning performance can be further improved.

That is, in the detergent charging structure of the washing machine according to the present embodiment, the second waterproof wall 17, the first waterproof wall 16, the first drainage part 11, and the second drainage part 12 are arranged in order from the top. .

Also, the water surface 8a of the detergent dissolving part 8 includes a plurality of pins 20 that are arranged to extend upward toward the detergent storage case 6.

A part of the detergent storage case 6 includes a grinding chamber 22 including a slit 21. The crushing chamber 22 is provided so as to extend further rearward than the first drainage unit 11, further dissolves the detergent in the detergent aqueous solution 9, and flows downward. The slit 21 is an example of a detergent aqueous solution flow hole.

That is, the first storage chamber 14 of the detergent storage case 6 is partitioned into the pulverization chamber 22 and the mixing chamber 24 by the partition wall 23 including the first drainage part 11. The mixing chamber 24 mixes the detergent and water after the user puts in the detergent.

The flow path structure lower surface 7 b has a plurality of first flow holes 25 that allow water to flow into the mixing chamber 24 above the mixing chamber 24. Further, the flow path structure lower surface 7 b has a second flow down hole 26 for allowing water to flow into the crushing chamber 22 above the crushing chamber 22. The first flow down hole 25 and the second flow down hole 26 communicate with each other through a flow channel inside the flow channel structure 7.

In the above configuration, when the user starts the operation of the washing machine after putting the detergent into the mixing chamber 24, the following operation is executed.

When the operation is started, the control unit opens the water supply valve 18 and causes the detergent in the mixing chamber 24 to flow down from the first flow down hole 25, whereby the detergent and water are mixed in the mixing chamber 24. . When water is supplied from the first flow down hole 25, the water level in the mixing chamber 24 rises while mixing the detergent and water. When the water level rises to the height of the partition wall 23, the mixed solution of water and detergent flows over the partition wall 23 and flows into the pulverization chamber 22. Water that flows down from the second flow down hole 26 above the crushing chamber 22 is applied to the mixed liquid that has flowed in, and a detergent aqueous solution 9 is generated. And the detergent aqueous solution 9 is discharged | emitted from the slit 21 provided in the downward direction of the grinding | pulverization chamber 22 to the detergent dissolving part 8 below.

At this time, a lump of detergent larger than the opening of the slit 21 in the crushing chamber 22 does not pass through the slit 21 and remains in the crushing chamber 22. The remaining detergent is further sprinkled with water from the second flow down hole 26 on the lower surface 7b of the flow path structure portion. As a result, the large lump of detergent gradually dissolves. Then, when the dissolution proceeds until the detergent becomes smaller than the opening of the slit 21, the detergent flows down to the lower detergent dissolving portion 8.

The longitudinal direction (front-rear direction) of the slit 21 is substantially the same (including the same) as the sliding direction of the detergent storage case 6. The pin 20 formed on the flowing water surface 8 a of the detergent dissolving part 8 is arranged so that the tip penetrates the slit 21. At this time, as described above, the detergent storage case 6 is formed to be slidable back and forth. Therefore, the user pulls out the detergent storage case 6 while sliding it, and puts the detergent into the first storage chamber 14. After adding the detergent, the user closes the detergent storage case 6. At the start of the washing operation, the controller of the washing machine opens the water supply valve 18 and supplies water to the detergent storage case 6. Thereby, it is comprised so that the detergent aqueous solution 9 produced | generated by mixing detergent and water may flow down into the washing tub 1. FIG.

The flow path structure lower surface 7b includes a detergent aqueous solution speed adjusting wall 27 that extends downward and is integrally formed. The detergent aqueous solution speed adjusting wall 27 is provided on the upstream side of the second flow down hole 26 at a position above the grinding chamber 22 region on the downstream side of the partition wall 23. The detergent aqueous solution speed adjusting wall 27 acts to limit the speed of the detergent aqueous solution 9 flowing from the mixing chamber 24 of the detergent storage case 6 into the grinding chamber 22.

The detergent dissolution part 8 further includes a water splash suppression wall 28a on the water surface 8a. As shown in FIG. 4, the water splash suppression wall 28 a is, for example, at a position immediately below the first flow down hole 25 provided side by side in the front-rear direction and at the center of the entire water flow surface 8 a of the detergent dissolving portion 8. It is provided on one side of the side. That is, the water splash suppression wall 28a is provided so as to extend along the front-rear direction (the sliding direction of the detergent storage case 6), that is, the direction in which the detergent aqueous solution 9 flows down on the water flow surface 8a. At this time, one end of the water splash suppression wall 28a on the second drainage portion 12 side is formed in a substantially J-shape (including a J-shape) so as to surround at least one portion immediately below the first flow-down hole 25. Is done.

That is, a part of the water splash suppression wall 28a extends in a direction in which the detergent aqueous solution 9 flows, and a part (one end on the second drainage portion 12 side) extends in a direction to block the detergent aqueous solution 9 from flowing. Consists of shapes.

Furthermore, in this Embodiment, as shown in FIG. 5, the 2nd water splash suppression wall 28b and the 3rd water splash suppression wall 28c are provided on the water flow surface 8a of the detergent melt | dissolution part 8. FIG. The second water splash restraining wall 28b and the third water splash restraining wall 28c are each formed in a substantially C shape (including a C shape), and the water surface 8a is located immediately below the second flow down hole 26. It is arranged facing the top. That is, the second water splash restraining wall 28b and the third water splash restraining wall 28c are arranged so as to surround the position immediately below the second flow down hole 26 from the left and right. At this time, the second water splash suppression wall 28b and the third water splash suppression wall 28c are provided so as to surround directions other than the direction in which the detergent aqueous solution 9 flows, and to open in the direction in which the detergent aqueous solution 9 flows.

Further, a drainage hole 29 communicating with the washing tub 1 is provided in the water flow surface 8a of the detergent dissolving portion 8 in the vicinity of the water splash suppression wall 28a bent into a substantially J shape. The drain hole 29 is disposed on the inner side of the inner wall 13 of the washing tub opening as viewed from the center of the washing tub 1. Further, the drain hole 29 is disposed at a position facing one of the first flow down holes 25.

In addition, between the left and right flow surfaces 8a and the peripheral walls 8b of the detergent dissolving portion 8, there are sliding surfaces 30 of the detergent dissolving portion 8 extending in a stepwise cross-sectional shape in the sliding direction of the detergent containing case 6. ,It is formed.

Similarly, the sliding surfaces 31 of the detergent storage case 6 are formed at the left and right ends of the detergent storage case 6 at positions facing the sliding surface 30 of the detergent dissolving portion 8. As shown in FIG. 3, the sliding surface 31 of the detergent storage case 6 is formed in a shape that extends downward and then extends in a planar shape in the left-right direction.

The sliding surface 30 of the detergent dissolving part 8 and the sliding surface 31 of the detergent storage case 6 constitute a first support part. The first support part slidably supports the detergent storage case 6 with respect to the upper housing 3.

The detergent dissolving part 8 includes an opening 32 formed on the clothes insertion port 4 side. The detergent storage case 6 is configured to be able to be taken in and out through the opening 32.

Further, the detergent dissolving part 8 is covered with an operation part 19 as shown in FIGS. The operation unit 19 is fixed to the upper portion of the upper housing 3 with a claw or a screw (not shown). As shown in FIG. 1, the front edge portion 33 of the operation unit 19 is disposed between the clothing input port 4 of the upper housing 3 and the opening 32 of the detergent dissolving unit 8.

Further, one end of the flow path structure portion lower surface 7b extends downward outside the sliding range of the left and right detergent storage cases 6 of the flow path structure portion 7 as shown in FIG. That is, the vicinity of the tip of the flow path structure lower surface 7b extends downward toward the detergent storage case 6 as shown in FIG. 3 and FIG.

The sliding surface 34 of the flow path structure portion 7 and the sliding surface 31 of the detergent storage case 6 constitute a second support portion. The second support portion slidably supports the detergent storage case 6 with respect to the flow path structure portion 7 fixed to the upper housing 3.

That is, the detergent charging structure of the washing machine according to the present embodiment has the clothes charging port 4, the sliding surface 34 of the flow path structure 7, the front edge 33 of the operation unit, and the opening as viewed from the center of the washing tub 1. It arrange | positions in order of the front edge of the sliding surface 30 of the part 32, the detergent melt | dissolution part, the 2nd drainage part 12, the washing tub opening inner wall 13, and the flow surface 8a of a detergent melt | dissolution part.

Further, as shown in FIG. 6, the claw 35 (second locking portion) of the flow path structure portion 7 is arranged so that the claw 37 of the detergent storage case 6 comes into contact with the claw 37 of the detergent storage case 6 when pulled out. It is disposed at a position between the first storage chamber 14 and the second storage chamber 15. On the other hand, the detergent storage case 6 includes a beam portion 36 between the first storage chamber 14 and the second storage chamber 15. A part of the beam part 36 has a claw 37 (first locking part) that protrudes toward the flow path structure part 7 and can be elastically moved up and down. The claw 35 comes into contact with the claw 37 of the flow path structure portion 7 in a state where the detergent housing case 6 is pulled out.

At this time, the abutment surfaces of the claw 37 of the detergent storage case 6 and the claw 35 of the flow path structure 7 are formed in a planar shape substantially perpendicular (including vertical) to the sliding direction of the detergent storage case 6. The Accordingly, when the detergent storage case 6 is pulled out, if the contact surfaces come into contact with each other, the position of the detergent storage case 6 is regulated so that it cannot be pulled out any further.

On the other hand, when removing and cleaning the detergent container 6, the user elastically deforms and pushes down the beam portion 36 of the detergent container 6. At this time, the claw 37 is also pushed down, and the contact with the claw 35 of the flow path structure portion 7 is released. As a result, the detergent storage case 6 can be removed.

Further, the surface of the claw 35 of the flow path structure portion 7 and the claw 37 of the detergent storage case 6 on the opposite side to the abutting surfaces are the sliding direction (front-rear direction) of the detergent storage case 6 as shown in FIG. ). Thereby, when attaching the detergent storage case 6 to the flow path structure 7, first, the claw 35 and the claw 37. Each inclined surface contacts. Then, as the detergent storage case 6 is inserted, the claw 37 moves downward. At this time, the beam portion 36 of the detergent storage case 6 is elastically bent downward. As a result, the claw 37 gets over the claw 35. As a result, the claw 37 of the detergent storage case 6 and the claw 35 of the flow path structure portion are locked via the contact surfaces.

The flow path structure portion 7 includes support portions 38 at the left and right ends, as shown in FIG. The support portion 38 is formed to extend downward along the sliding direction of the detergent storage case 6. Furthermore, the inner surface of the support portion 38 is provided close to the outer walls of the first storage chamber 14 and the second storage chamber 15 of the detergent storage case 6.

On the other hand, the detergent storage case 6 includes a position suppressing portion 39 at the left and right ends. The position suppressing portion 39 is formed by extending upward along the sliding direction of the detergent storage case 6. Further, the inner surface of the position suppressing portion 39 is provided close to the outer wall of the support portion 38 of the flow path structure portion 7.

That is, the detergent charging structure of the washing machine according to the present embodiment has the position suppressing portion 39 of the detergent storage case 6, the support portion 38 of the flow path structure portion, the first storage chamber 14, and the second storage from the outside to the inside. The outer wall of the chamber 15, the first storage chamber 14 and the second storage chamber 15, and the claw 37 of the detergent storage case 6 and the claw 35 of the flow path structure portion 7 are sequentially arranged so as to be sandwiched therebetween.

That is, a claw 37 (first locking portion) of the detergent storage case 6 and a claw 35 (second locking portion) of the flow path structure portion 7 are provided at substantially the center (including the center) of the detergent storage case 6. Be placed. And the support part 38 of the flow-path structure part 7 and the position control part 39 of the detergent storage case 6 are arrange | positioned adjacent to the right-and-left end side of the detergent storage case 6. FIG.

Further, as shown in FIG. 6, the support portion 38 of the flow path structure portion 7 is formed integrally with the lower surface 7 b of the flow path structure portion in a rail shape having substantially the same cross section (including the same cross section). Specifically, the support portion 38 extends over the entire length of the channel structure lower surface 7b in the front-rear direction of the channel structure lower surface 7b, that is, the sliding direction of the detergent storage case 6. That is, the flow path structure portion lower surface 7b includes the sliding surface 34, the claw 35, and the support portion 38 that are integrally formed.

Similarly, in the detergent storage case 6, the sliding surface 31, the position suppressing portion 39, the beam portion 36, and the claw 37 are integrally configured.

Also, as shown in FIGS. 3 and 4, the first storage chamber 14 of the detergent storage case 6 has a powder detergent drain hole 40 that is partially open at the bottom. The drainage hole 40 for the powder detergent is disposed opposite to the drainage hole 29 of the water splash suppression wall 28a of the water flow surface 8a of the detergent dissolving part 8. That is, the powder detergent drain hole 40 supplies water to the first storage chamber 14 from the flow path structure portion 7 during washing, and when flowing the powder detergent, water and a part of the detergent are removed from the detergent dissolving portion 8. Flow down to the water surface 8a. Then, the water that has flowed down and a part of the powder detergent are supplied to the washing tub 1 from the drain hole 29 through the flowing water surface 8a of the detergent dissolving portion 8.

That is, after supplying predetermined water to the washing tub 1, when the water supply from the flow path structure 7 is finished, the water remaining in the first storage chamber 14 flows down from the drain hole 40 of the powder detergent, and the washing tub 1. To be supplied. Thereby, even if the partition wall 23 is provided on the drain side of the first storage chamber 14, the first storage chamber 14 is configured such that water does not remain. Therefore, at the time of next use, when putting a powder detergent into the 1st storage chamber 14 of the detergent storage case 6, the surface of the 1st storage chamber 14 is dry. Thereby, since it becomes difficult for the detergent to adhere to the inner surface of the first storage chamber 14, usability can be improved.

Further, the flow channel structure 7 includes a lateral flow channel 41 shown in FIGS. 3 and 5 at one end on the clothing input port 4 side. The lateral flow path 41 is formed by extending in the lateral direction from the washing tub 1 to the left and right ends of the detergent storage case 6. That is, the water supplied from the water supply valve 18 passes through the flow path including the first flow down hole 25 and the second flow down hole 26 in the flow path structure 7. Thereafter, the water is supplied to the lateral flow path 41 through the flow path restricting portion 42 shown in FIG.

The horizontal flow path 41 is connected to the first water pipe portion 43 and the second water pipe portion 44 that extend downward on the left and right ends, respectively.

The first water pipe portion 43 and the second water pipe portion 44 have a spherical portion 45 shown in FIG. 11 in the vicinity of the lower end. The spherical surface portion 45 is formed with substantially the same radius (including the same radius) to the inner surface around the central axis of the first water tube portion 43 and the second water tube portion 44. A part of the spherical portion 45 is formed with a first horizontal opening 46 and a second horizontal opening 47 that open obliquely downward toward the washing tub 1 side.

The first water pipe portion 43 and the first horizontal opening 46 constitute a first water supply portion 48. Similarly, the second water pipe portion 44 and the second horizontal opening portion 47 constitute a second water supply portion 49.

The first water supply unit 48 and the second water supply unit 49 are disposed adjacent to the left and right ends of the detergent storage case 6. Then, the shower water 50 is supplied from the first horizontal opening 46 and the second horizontal opening 47 to the laundry 55 in the washing tub 1.

The first horizontal opening portion 46 and the second horizontal opening portion 47 are inclined toward the washing tub 1 side on the spherical portion 45 centering on the central axis of the first water pipe portion 43 and the second water pipe portion 44. Open downward. At this time, the water supplied from the water supply valve 18 first has the first horizontal opening 46 and the second horizontal opening 47 around the central axes of the first water pipe portion 43 and the second water pipe portion 44. Flows so as to fall vertically against. Then, the water falling vertically is changed in jetting direction by the spherical surface portion 45, the first horizontal opening portion 46 and the second horizontal opening portion 47. Therefore, the spherical surface portion 45, the first horizontal opening portion 46, and the second horizontal opening portion 47 constitute an urging portion that determines the water ejection direction.

Usually, the washing tub 1 includes a first rotation state (CW) that rotates clockwise by the rotation of the motor 10 and a second rotation state (CCW) that rotates counterclockwise. When washing or rinsing at the time of washing, the control unit opens the water supply valve 18 and supplies water into the washing tub 1. At this time, the shower water 50 is supplied to the laundry 55 in the washing tub 1 during rotation such as washing and rinsing.

That is, in the first rotation state (CW), as shown in FIG. 8, the laundry 55 on the left side of the laundry tub 1 approaches the first water supply unit 48 on the left side of the laundry tub 1. Move to. Similarly, in the second rotation state (CCW), the laundry 55 on the right side of the washing tub 1 moves toward the second water supply unit 49 on the right side of the washing tub 1. Thereby, in any rotation state, since the shower water can be applied to the approaching laundry 55, the laundry 55 can be effectively washed.

The first horizontal opening 46 and the second horizontal opening 47 further include end openings 51 formed in a substantially circular shape (including a circle) shown in FIGS. 5 and 11 at the left and right ends. The end opening 51 is formed with an opening size larger than the vertical opening size (corresponding to the vertical opening size) of the first horizontal opening 46 and the second horizontal opening 47. That is, the opening formed by the first horizontal opening 46 and the end opening 51 and the second horizontal opening 47 and the end opening 51 is formed in a long hole shape having a large opening area at both ends. Is done. Specifically, each opening is formed in an opening shape similar to the tip opening shape of the rubber hose when the tip of the rubber hose is pinched with a finger, for example. Thereby, the water spouted in a fan-shaped shape from each opening of the first water supply unit 48 and the second water supply unit 49 is evenly sprayed on the laundry 55.

At this time, in this embodiment, the opening area S1 obtained by adding the first horizontal opening 46 shown in FIG. 11 and the left and right end openings 51 is the cross-sectional area of the flow path of the first water pipe portion 43. It is set to be smaller than S2 and larger than the opening area of the flow path restricting portion 42. Further, the channel cross-sectional area S <b> 2 of the first water pipe portion 43 is set to be substantially the same (including the same) as the channel cross-sectional area of the lateral channel 41. As a result, as shown in FIG. 5, the water flowing to the lateral flow path 41, the first water pipe section 43, and the first horizontal opening 46 via the flow path restricting section 42 is squeezed out. Do not flow down. That is, since water does not flow down the portion where the cross section of the flow path becomes narrow, it is difficult to lower the water pressure in the flow path. That is, when the tap water pressure is low and the flow rate is low, the speed of the shower water 50 from the first horizontal opening 46 is also reduced. Therefore, the reduction of water in the first water pipe portion 43 is also delayed.

Further, the opening area S1 including the first horizontal opening 46 and the left and right end openings 51 is set to be smaller than the channel cross-sectional area S2 of the first water pipe portion 43. Therefore, in inverse proportion to the cross-sectional area S2, the flow velocity flowing through the first water pipe portion 43 is slower than the speed at which the shower water 50 flows out. As a result, when the pressure due to the water level in the first water pipe portion 43 and the speed at which the shower water 50 flows out are balanced, the water level in the first water pipe portion 43 is stabilized. Therefore, a constant water pressure corresponding to the water level is continuously applied to the first horizontal opening 46. Thereby, the shower water 50 can be supplied to the laundry 55 in the washing tub 1 in a state where the outflow speed is stable. As a result, stable washing performance can be maintained. The above effect is not particularly described, but the same applies to the second horizontal opening 47.

Furthermore, the first horizontal opening 46 has a jaw 52 constituting the lower half. The jaw 52 has a diaphragm surface 53 on the inner side. The throttle surface 53 is formed by extending a part of the spherical portion 45 to the edge of the first horizontal opening 46, and acts to reduce the cross-sectional area of the flowing water path. The jaw 52 has a receding surface 54 on the outside. The receding surface 54 is formed in a shape that recedes downward from the edge of the first horizontal opening 46 with respect to the extending direction of the first water pipe portion 43. The configuration of the first horizontal opening 46 is the same as that of the second horizontal opening 47, and thus the description thereof is omitted.

Further, as shown in FIG. 1, the washing tub 1 includes a stirring blade 56 below. The stirring blade 56 acts to wash the laundry by applying a rotational force. The stirring blade 56 includes a detergent dissolving blade 57 below. The detergent dissolving blade 57 is configured by extending radial ribs toward the opening of the washing tub 1. During the washing operation, the stirring blade 56 is rotated by the motor 10 without rotating the washing tub 1. As the stirring blade 56 rotates, the detergent dissolution blade 57 also rotates. Thereby, it is possible to wash the laundry while effectively dissolving the detergent.

Furthermore, the washing tub 1 is provided with a detergent inlet 58 supported by the side wall of the washing tub 1. In a state where the detergent charging port 58 is opened, one end 58 a of the detergent charging port 58 is arranged to extend outward from the opening 1 a of the washing tub 1. As a result, the detergent introduced into the detergent inlet 58 is caused to flow down to the outside of the washing tub 1 through the detergent inlet 58. The detergent flows down through a detergent flow path 59 formed in a gap with the outer tub 60 outside the washing tub 1. The detergent falls to a position facing the detergent dissolving blade 57, is sufficiently dissolved in water by the detergent dissolving blade 57, and is supplied into the washing tub 1.

As described above, the washing machine of the present embodiment is configured.

Hereinafter, the operation and action of the washing machine of this embodiment will be described.

As shown in FIG. 1 and FIG. 2, the detergent storage case 6 of the present embodiment is provided between a detergent dissolving part 8 and a flow path structure part 7 configured by extending a part of the upper housing 3 downward. To be accommodated. And the detergent aqueous solution 9 produced | generated in the detergent storage case 6 flows through the flowing water surface 8a of the detergent melt | dissolution part 8. FIG. Therefore, the detergent aqueous solution 9 does not overflow beyond the channel structure upper surface 7a. At this time, electrical components such as the water supply valve 18 and the operation unit 19 are arranged at a position higher than the water flow surface 8a of the detergent dissolution unit 8 of the upper housing 3. Therefore, the electrical parts overflow from the detergent storage case 6 and are not splashed with water. As a result, it is possible to prevent insulation defects such as electrical parts.

Further, the channel structure upper surface 7a and the channel structure lower surface 7b constituting the channel structure 7 are formed in a substantially plate shape (including a plate shape). For this reason, the apparatus for welding the flow path structure portion upper surface 7a and the flow path structure portion lower surface 7b can be miniaturized and the manufacture is facilitated. Further, since the channel structure upper surface 7a and the channel structure lower surface 7b are less uneven, they can be manufactured with stable welding quality.

Further, the detergent dissolving part 8 is configured integrally with the upper housing 3. Therefore, water leakage can be prevented more reliably. Further, the detergent dissolving part 8 promotes the dissolution of the water and the detergent in the detergent aqueous solution 9 while flowing through the flowing water surface 8a. Therefore, the washing performance of the laundry 55 can be further improved.

Further, in the detergent dissolving portion 8, a second waterproof wall 17, a first waterproof wall 16, a first drainage portion 11, and a second drainage portion 12 are arranged in order from above. That is, the first drainage unit 11 is disposed at a position higher than the second drainage unit 12. Therefore, the detergent aqueous solution 9 flows down into the washing tub 1 without staying on the flowing water surface 8a of the detergent dissolving part 8. Thereby, when passing through the 1st drainage part 11, detergent aqueous solution 9 can fully be drained. Therefore, water or the detergent aqueous solution 9 does not overflow from the detergent housing case 6 except from the first drainage part 11. That is, it is possible to configure the detergent dissolving portion 8 that is less likely to leak water.

Further, the first waterproof wall 16 of the detergent dissolving part 8 is arranged at a position higher than the first drainage part 11. Therefore, even if water or the detergent aqueous solution 9 overflows from the detergent storage case 6, it can be easily drained through the first drainage unit 11. As a result, it is difficult for water to leak from the first waterproof wall 16.

Furthermore, the second waterproof wall 17 of the detergent dissolving part 8 is arranged at a position higher than the first waterproof wall 16. Therefore, even if the water or the detergent aqueous solution 9 overflows beyond the first waterproof wall 16, the water level does not easily rise to the second waterproof wall 17. Thereby, the water leak from the 2nd waterproof wall 17 can be prevented more reliably. As a result, it is possible to prevent insulation failure that occurs when water is applied to electrical components such as the water supply valve 18, the operation unit 19, and the motor 10 that are arranged in the upper housing 3.

In addition, the washing machine includes, as viewed from the center side of the washing tub 1, the clothing insertion port 4, the sliding surface 34 (second support portion) of the flow path structure portion 7, the front edge portion 33 of the operation portion 19, The opening 32, the front edge of the sliding surface 30 (first support portion) of the detergent dissolving portion, the second drainage portion 12, the inner wall 13 of the washing tub opening, and the flowing water surface 8 a of the detergent dissolving portion 8 are arranged. At this time, the detergent storage case 6 is slidably supported not only by the sliding surface 30 of the detergent dissolving portion 8 but also by the sliding surface 34 of the flow path structure portion 7. Thereby, in order to integrate the detergent melt | dissolution part 8 with the upper housing | casing 3, the malfunction which arises when shortening the depth dimension of the detergent melt | dissolution part 8 can be prevented. That is, when the depth dimension is shortened, the sliding surface 30 of the detergent dissolving portion 8 is shortened, and thus the case where the detergent storage case 6 can be supported only outside the opening 32 occurs. Even in this case, the detergent storage case 6 can be supported by the sliding surface 34 of the flow path structure 7 when the detergent storage case 6 is largely pulled out to the sliding surface 34 of the flow path structure 7 by the above configuration. Thereby, falling-off of the detergent storage case 6 can be prevented more reliably. Therefore, the user can reliably put the detergent into the detergent storage case 6.

Further, the sliding surface 34 of the flow path structure portion 7 is constituted by a part of the flow path structure portion 7. Therefore, the detergent storage case 6 can be slidably supported only by the detergent dissolving part 8 and the flow path structure part 7. That is, the detergent dissolving part 8 and the flow path structure part 7 can be positioned by a claw or a screw. Thereby, even if the relative position of the sliding surface 30 of the detergent dissolution part 8 and the sliding surface 34 of the flow path structure part 7 and the sliding surface 31 of the detergent storage case 6 shifts, the detergent storage case 6 can be easily In addition, it can be pulled out stably.

Also, as shown in FIG. 1, the detergent is put into the detergent inlet 58 of the washing tub 1, the detergent flows down to the detergent dissolving blade 57, and the stirring blade 56 is rotated during washing. Accordingly, the detergent can be dissolved by the detergent dissolving blade 57 that rotates together with the stirring blade 56.

That is, when the water pressure of the tap water is high, the detergent is put into the detergent storage case 6 that can be opened and closed in the upper housing 3. Then, the detergent is dissolved and supplied to the washing tub 1 when tap water is supplied.

On the other hand, when the water pressure of tap water is low or when water is supplied with a bucket without using tap water, the detergent is put into the detergent inlet 58 of the washing tub 1 described above. Then, the laundry 55 is washed while the detergent is dissolved by the rotation of the stirring blade 56 during the washing operation. Thereby, the injection method of a detergent can be selected according to the situation of water pressure and the injection method of water. Therefore, a highly versatile washing machine with excellent usability can be realized.

Further, as shown in FIG. 3, the detergent storage case 6 is partitioned into a mixing chamber 24 and a crushing chamber 22 by a partition wall 23. A first flow down hole 25 that allows water to flow down to the mixing chamber 24 and a second flow down hole 26 that flows down water to the crushing chamber 22 are provided in communication with the flow path structure portion 7. Furthermore, the slit 21 is provided in the bottom part of the grinding | pulverization chamber 22, and it is comprised so that the detergent aqueous solution 9 may flow out from the slit 21 downward. Thereby, since it can accelerate | stimulate melt | dissolution of detergent more reliably and can supply to the washing tub 1 irrespective of the state of a detergent, washing | cleaning performance improves more. Specifically, for example, even when the detergent is wet and lumpy, the detergent in the detergent aqueous solution 9 can be dissolved by the slit 21 until it becomes smaller than the opening. That is, since the detergent can be uniformly dispersed in the detergent aqueous solution 9 and supplied to the washing tub 1, the cleaning performance is improved.

Further, by configuring the flow path structure portion 7 as described above, when the water pressure of tap water is low, the water pressure of the flow path structure portion 7 is low, and the second flow down that communicates with the first flow down hole 25 and the first flow down hole 25. The flow rate of water exiting the hole 26 is reduced. Therefore, the water level in the mixing chamber 24 of the detergent storage case 6 also rises slowly. Thereby, the detergent in the mixing chamber 24 is dissolved over a sufficient time by the water supplied from the first flow down hole 25 into the mixing chamber 24 without exceeding the partition wall 23 at a time. Then, it is sent to the crushing chamber 22 in the state of the detergent aqueous solution 9 in which the detergent is sufficiently dissolved. That is, even when the water pressure of tap water is low, dissolution of the detergent can be promoted and supplied to the washing tub 1, so that the laundry 55 can be washed with high cleaning performance.

On the other hand, when the water pressure of the tap water is high, the water pressure of the flow path structure 7 is high, and the flow velocity of the water flowing down from the first flow down hole 25 and the second flow down hole 26 communicating with the first flow down hole 25 is increased. Therefore, the water level in the mixing chamber 24 of the detergent storage case 6 rises quickly. Thereby, the detergent in the mixing chamber 24 exceeds the partition wall 23 in a short time. Even in this case, the mixing chamber 24 can secure a time for mixing the water and the detergent until the partition wall 23 is exceeded. That is, when the water pressure is high, the flow rate of water flowing down from the second flow down hole 26 is also increased. Therefore, the detergent that has flowed over the partition wall 23 due to the flow of water having a high flow velocity is crushed vigorously in the crushing chamber 22. Thereby, the detergent is dissolved in a short time. That is, even when the water pressure of tap water is high, dissolution of the detergent can be promoted and supplied to the washing tub 1, so that the laundry 55 can be washed with high cleaning performance.

Further, the detergent dissolving part 8 has a pin 20 erected on the flowing water surface 8 a toward the slit 21 of the grinding chamber 22 of the detergent storage case 6. Then, the tip of the pin 20 is inserted into the slit 21. Thereby, the detergent finely pulverized until it passes through the slit 21 is further finely pulverized while passing between the pins 20 on the flowing water surface 8a of the detergent dissolving portion 8. As a result, the detergent is efficiently dissolved. Further, the longitudinal direction of the slit 21 is substantially the same as the sliding direction of the detergent storage case 6. Therefore, the detergent storage case 6 is taken in and out every time the user puts the detergent into the washing machine. At this time, the pin 20 slides in the slit 21. By the sliding, the detergent adhered to the slit 21 is peeled off. Thereby, clogging of the slit 21 due to the adhesion of the detergent can be prevented. As a result, the detergent can be efficiently dissolved over a long period of time.

Further, the flow path structure portion 7 includes a detergent aqueous solution speed adjustment wall 27 above the pulverization chamber 22 region of the detergent storage case 6. The detergent aqueous solution speed adjusting wall 27 changes the flow of the detergent aqueous solution 9 that has vigorously exceeded the partition wall 23 when the water pressure of the tap water is high and the flow rate flowing down from the first flow down hole 25 of the flow path structure 7 is large. . Specifically, the detergent aqueous solution speed adjusting wall 27 changes the flow of the detergent aqueous solution 9 beyond the partition wall 23 toward the crushing chamber 22, for example, downward as shown in FIG. 3. Thereby, the detergent aqueous solution 9 can be kept within the range of the pulverization chamber 22, and the detergent aqueous solution 9 can be prevented from flowing down beyond the pulverization chamber 22 before the dissolution of the detergent proceeds. As a result, the laundry 55 can be washed with high cleaning performance by efficiently dissolving the detergent.

Further, as shown in FIG. 5, the detergent dissolving portion 8 includes a water splash suppressing wall 28a formed by extending in the flowing direction in the vicinity of the position facing the first flow down hole 25 of the flowing water surface 8a. Usually, when the washing machine is operated without attaching the detergent storage case 6, the water flowing down from the first flow down hole 25 jumps in four directions on the water flow surface 8 a of the detergent dissolving portion 8. Even in this case, a part of the jumping water hits the water splash suppressing wall 28a and is changed to the upward flow. Therefore, it is possible to effectively suppress jumping forward from the opening 32 on the second drainage portion 12 side of the water flow surface 8a of the detergent dissolving portion 8 to the front of the device.

Further, the water splash suppression wall 28a is formed at one end on the second drainage portion 12 side so as to extend in a substantially J shape that bends in a direction different from the flowing water direction. Thereby, it is possible to suppress the water that flows down from the first flow down hole 25 and jumps in four directions on the water flow surface 8 a of the detergent dissolving portion 8 from jumping to the opening 32 side of the second drainage portion 12. Furthermore, the second water splash restraining wall 28b and the third water splash restraining wall 28c are substantially C-shaped (including C-shaped) in a direction different from the flowing water direction so as to surround the position facing the second flow down hole 26. And is formed on the water surface 8a. Thereby, a part of the water that flows down from the second flow down hole 26 and splashes in four directions on the flow surface 8a of the detergent dissolving portion 8 hits the second water splash suppression wall 28b and the third water splash suppression wall 28c. , Instead of the upward flow. Therefore, similarly to the water splash suppression wall 28a, jumping forward of the device can be suppressed. Thereby, even if it supplies water to the detergent melt | dissolution part 8 in the state which removed the detergent storage case 6, the jumping of the water ahead of an apparatus can be suppressed. As a result, generation | occurrence | production of malfunctions, such as getting a user wet, can be suppressed.

Furthermore, the second water splash suppression wall 28b and the third water splash suppression wall 28c are open in the direction in which the detergent aqueous solution 9 flows. Therefore, the detergent aqueous solution 9 does not remain in the second water splash suppression wall 28b and the third water splash suppression wall 28c.

In addition, the detergent dissolving portion 8 is a drainage hole that communicates toward the washing tub 1 with the water surface 8a in the vicinity of the water splash suppression wall 28a that is bent into a substantially J shape at one end on the second drainage portion 12 side. 29. The drain hole 29 is arranged so as to open in a range inside the washing tub opening inner wall 13 of the washing tub 1. Thereby, a part of the water flowing on the water flow surface 8 a of the detergent dissolving part 8 is drained toward the washing tub 1 without overflowing to places other than the washing tub 1. Further, it is possible to prevent the detergent aqueous solution 9 that is blocked by the water splash restraining wall 28 a or the flow direction of the detergent aqueous solution 9 from staying on the flowing water surface 8 a of the detergent dissolving portion 8. As a result, it is possible to prevent the detergent from adhering to the water surface 8a of the detergent dissolving portion 8 that occurs when the detergent remains.

The flow path structure lower surface 7b of the flow path structure 7 includes a second waterproof wall 17 formed integrally. The second waterproof wall 17 is formed to extend partially below the upper housing 3. The periphery of the second waterproof wall 17 is surrounded by the peripheral wall 8 b of the detergent dissolving portion 8, and the upper portion of the peripheral wall 8 b is configured to be covered by the flow path structure portion 7. Thereby, the 2nd waterproof wall 17 waterproofs the flowing water surface 8a of the detergent melt | dissolution part 8. FIG. At this time, the detergent dissolving portion 8, the water splash suppression wall 28a, the second water splash suppression wall 28b, and the third water splash suppression wall 28c are molded in the vertical direction in FIG. Can be moved and molded. That is, the mold can be molded by moving the mold in the same direction as the opening direction of the molding mold of the upper housing 3. Therefore, the detergent dissolution part 8, the water splash suppression wall 28a, the second water splash suppression wall 28b, and the third water splash suppression wall 28c can be easily molded without using a slide mold or the like.

Further, as shown in FIG. 4, the drainage hole 29 formed in the detergent dissolving part 8 is opened at a position facing at least one of the first flow down holes 25 on the lower surface 7b of the flow path structure part. Thereby, the water flowing down from the first flow down hole 25 does not hit the flow surface 8a of the detergent dissolving portion 8 and can flow down directly into the washing tub 1 through the drain hole 29. Therefore, the detergent Even when the storage case 6 is forgotten to be mounted, it is possible to suppress the jumping of water to the front of the device on the flowing water surface 8a of the detergent dissolving part 8.

Further, as shown in FIG. 6, the position of the detergent storage case 6 is regulated by the claw 37 of the detergent storage case 6 and the claw 35 of the flow path structure portion 7 when being pulled out. Thereby, a detergent, a softening agent, etc. can be thrown into the 1st storage chamber 14 and the 2nd storage chamber 15 by predetermined amount of drawing each time. Furthermore, the user can remove the detergent storage case 6 simply by pushing down the beam portion 36 of the detergent storage case 6. Moreover, even if the engagement margin between the claw 37 of the detergent storage case 6 and the claw 35 of the flow path structure portion is increased, the detergent storage case 6 can be easily removed simply by pushing down the beam portion 36 of the detergent storage case 6. Thereby, the usability of the detergent storage case 6 can be improved.

Also, the claw 37 of the detergent storage case 6 and the claw 35 of the flow path structure portion are provided at one location substantially in the center of the detergent storage case 6. Therefore, rattling of the detergent storage case 6 to the left and right can be suppressed. Furthermore, the operation of pushing down the beam portion 36 of the detergent storage case 6 can be performed with one hand. Therefore, the detergent storage case 6 can be easily removed. Moreover, the beam part 36 of the detergent storage case 6 can be visually recognized in the state where the detergent storage case 6 is pulled out. Therefore, the method of removing the detergent storage case 6 can be easily determined visually.

On the other hand, when the detergent storage case 6 is attached, the beam portion 36 of the detergent storage case 6 is elastically bent downward and gets over the claw 35 of the flow path structure portion 7. Thereby, the claw 37 of the detergent storage case 6 and the claw 35 of the flow path structure 7 are locked. for that reason. The user can install the detergent housing case 6 at a predetermined position simply by pushing it in. That is, the detergent storage case 6 can be mounted without applying any force in the direction other than the sliding direction of the detergent storage case 6. This improves usability.

Further, the detergent storage case 6 has a claw 37 of the detergent storage case 6 constituting the first locking part and a claw 35 of the flow path structure part 7 constituting the second locking part at substantially the center. And the support part 38 of the flow-path structure part 7 and the position control part 39 of the detergent storage case 6 are provided close to the left and right ends of the detergent storage case 6 away from the claw 37 and the claw 35. Thereby, even when the distance from the claw 37 of the detergent storage case 6 to the rear end surface of the detergent storage case 6 is shortened in order to enlarge the clothes insertion port 4, the rattling of the detergent storage case 6 is reduced, Easily add detergent. That is, when the detergent storage case 6 is opened, the support portion 38 of the flow path structure portion 7 and the position suppressing portion 39 of the detergent storage case 6 are arranged close to each other. Therefore, the detergent storage case 6 is difficult to rattle. As a result, the detergent can be easily introduced.

Further, the support portion 38 of the flow path structure portion 7 has the same cross section over the entire length of the flow path structure portion lower surface 7b in the front-rear direction of the flow path structure portion lower surface 7b, that is, the sliding direction of the detergent storage case 6. It is formed into a rail shape. And the support part 38 is comprised so that the right-and-left end part of the 1st storage chamber 14 and the 2nd storage chamber 15 of the detergent storage case 6 may be contact | abutted. Thereby, in order to increase the amount of detergent to be introduced, the detergent storage case 6 can be designed to be horizontally long. Furthermore, even in the case of the horizontally long detergent storage case 6, when the detergent storage case 6 is slid back and forth, the movement of the left and right ends of the detergent storage case 6 is suppressed. Thereby, shakiness of the detergent storage case 6 can be reduced. Therefore, the detergent can be easily introduced.

Further, the flow path structure portion lower surface 7b, the sliding surface 34 of the flow path structure portion 7, the claw 35 of the flow path structure portion 7, and the support portion 38 of the flow path structure portion 7 are integrally formed. Therefore, the claw 35 and the support part 38 of the flow path structure part 7 can be constituted by one component. Thereby, position shift can be suppressed and shakiness of the detergent storage case 6 can be reduced. Furthermore, even if the gap between the support portion 38 of the flow path structure portion 7 and the position suppressing portion 39 of the detergent storage case 6 is made small, hindrance to sliding of the detergent storage case 6 can be prevented.

Further, as shown in FIGS. 7, 8, 9 and 10, the first water supply unit 48 supplies water to a position eccentric to the left side from the center of the washing tub 1, and the second water supply unit 49 It arrange | positions so that it may supply water to the position eccentrically located in the right side of substantially symmetrical (including symmetry) with the 1 water supply part 48. FIG. Therefore, even when the water pressure of tap water is low and the fan-shaped shower water 50 cannot be sprayed, the shower water 50 can be uniformly soaked in the entire laundry 55. Thereby, washing performance can be improved more. Furthermore, the water supply valve 18 and the flow path structure section 7 can be shared by arranging the first water supply section 48 and the second water supply section 49 at the left and right ends of the lateral flow path 41. Therefore, the washing machine body can be designed compactly.

Further, in the first rotation state in which the washing tub 1 rotates in the clockwise direction, the laundry 55 located on the left side of the washing tub 1 approaches toward the first water supply unit 48 located on the left side of the washing tub 1. Move in the direction. Therefore, the shower water 50 is applied toward the washing tub 1 in a direction substantially opposite to the moving direction of the laundry 55 (including the opposite direction) by the first horizontal opening 46 constituting the first biasing portion. It is sprayed to force. That is, as shown in FIG. 9, the shower water 50 from the first water supply unit 48 can be applied to the laundry 55 while moving upward from the lower right in accordance with the movement of the laundry 55. Thereby, since the shower water can be poured evenly on the laundry 55 from the bottom to the top, the laundry 55 can be effectively washed.

On the other hand, in the second rotation state in which the washing tub 1 rotates counterclockwise, as shown in FIG. 10, the shower water 50 is supplied from the second water supply unit 49 in the order from the left side to the opposite side of the laundry 55. It can be placed on the laundry 55 while moving in the direction. Thereby, the shower water 50 can be uniformly infiltrated into the entire laundry 55 while repeating the first rotation state and the second rotation state. As a result, the washing performance for the laundry 55 is further improved.

In particular, when the rinsing operation is performed after the dehydrating operation, the laundry 55 is stuck around the laundry tub 1 due to the centrifugal force due to the high-speed rotation of the laundry tub 1. At this time, the first horizontal opening 46 and the second horizontal opening 47 are directed in the circumferential direction of the washing tub 1. Thereby, the shower water 50 can be uniformly soaked in the whole laundry 55, and washing performance can be improved.

Moreover, as shown in FIG. 2, the 1st water supply part 48 and the 2nd water supply part 49 are arrange | positioned adjacent to the right and left of the detergent storage case 6. As shown in FIG. Thereby, the flow-path structure part 7 and the water supply valve 18 can be shared. As a result, the washing machine body can be designed compactly. Furthermore, the detergent aqueous solution 9 and the shower water can be poured into the washing tub 1 at the same time. Thereby, washing time can be shortened. In addition, in the said embodiment, although the structure provided with two water supply parts was demonstrated to the example, it is not restricted to this. For example, it is good also as a structure provided with three or more water supply parts, and the same effect is acquired.

Further, as shown in FIG. 11, the end opening 51 opens in a substantially circular shape and has an opening size larger than the vertical opening size of the first horizontal opening 46 and the second horizontal opening 47. Composed. Thereby, the jetted water stream can be thickened. Therefore, a water flow that is not easily affected by surface tension or the like can be ejected radially from both ends. Further, the water from the first horizontal opening 46 and the second horizontal opening 47 between the end openings 51 can be spread and sprayed in a film shape. Thereby, even when the water pressure of tap water is low, the shower water 50 can be easily fanned out in a fan shape.

Further, the opening area S1 obtained by adding the first horizontal opening 46 and the left and right end openings 51 of the first horizontal opening 46 is smaller than the flow path cross-sectional area S2 of the first water pipe portion 43. It is set. Thereby, even when the water pressure of tap water is low, a constant water pressure corresponding to the water level in each water supply section is continuously applied to the first horizontal opening 46. Therefore, the shower water 50 can be stably ejected at a constant water pressure. Furthermore, the shower water 50 can be easily spread in a fan shape.

Further, the jaw portion 52 includes a diaphragm surface 53 formed by extending a part of the spherical portion 45 to the edge of the first horizontal opening 46 on the inner side. Thereby, the water pressure is applied perpendicularly to the surface of the spherical portion 45. Therefore, it becomes easy to eject the shower water 50 straight from the first horizontal opening 46. Furthermore, it becomes easy to spread the shower water 50 in a fan shape.

Further, the jaw portion 52 includes a receding surface 54 that recedes downward from the edge of the first horizontal opening 46 with respect to the extending direction of the first water pipe portion 43 on the outside. Therefore, the first horizontal opening 46 can be molded only in the mold drawing direction. Thereby, the jaw 52 can be easily manufactured without adding a slide mechanism to the mold.

As described above, the washing machine of the present invention has a washing tub for storing laundry, a first water supply unit for supplying water to a position eccentric from the rotation center of the washing tub, and the rotation center of the washing tub. And a second water supply unit that supplies water to a position that is substantially symmetrical to the first water supply unit. Thereby, when the water pressure of tap water is low, even if the shower water cannot be spread, the shower water can be uniformly sprayed on the entire laundry. As a result, the washing performance is improved.

In the washing machine of the present invention, the first water supply unit and the second water supply unit may be arranged on the left and right of the upper rear of the washing tub. Thereby, a 1st water supply part and a 2nd water supply part can be arrange | positioned closely, and the flow path of a 1st water supply part and a 2nd water supply part can be shared. As a result, the washing machine body can be designed compactly.

The washing machine of the present invention has a first rotation state in which the washing tub is rotated in the clockwise direction and a second rotation state in which the washing tub is rotated in the counterclockwise direction. Water is supplied in a direction substantially opposite to the direction of movement of the washing tub in the first rotation state, and the second water supply portion is supplied in a direction substantially opposite to the direction of movement of the washing tub in the second rotation state. You may comprise. According to this configuration, when the laundry rotates in the clockwise direction, the first water supply unit pours shower water on one surface of the laundry in the clockwise direction. And a 2nd water supply part pours shower water on the surface on the opposite side of the clockwise direction of the laundry. On the other hand, when the laundry rotates counterclockwise, the second water supply unit pours shower water on one surface of the laundry in the counterclockwise direction. And the 1st water supply part pours shower water on the surface opposite to the counterclockwise direction of the laundry. Thereby, shower water can be uniformly soaked in the whole laundry, and it can wash efficiently.

Further, the washing machine of the present invention may further include a detergent storage case for storing detergent, and the detergent storage case may be disposed between the first water supply unit and the second water supply unit. According to this structure, it is arrange | positioned at the detergent storage case which accommodates a detergent, and the flow path structure part which supplies water from upper direction, and the flow path of a 1st water supply part and a 2nd water supply part can be shared. Thereby, a washing machine main body can be designed compactly. Furthermore, the detergent aqueous solution and the shower water can be poured into the washing tub at the same time. Therefore, the washing time can be shortened.

In the washing machine of the present invention, the first water supply unit includes a first horizontal opening and a first water pipe unit supplying water to the first horizontal opening, and the second water supply unit includes the second water supply unit. And a second water pipe for supplying water to the second horizontal opening. The first horizontal opening and the second horizontal opening further have end openings at the left and right ends, respectively, and the end openings are the first horizontal opening and the second horizontal opening. You may comprise so that it may have an opening dimension larger than the vertical direction opening dimension. According to this configuration, water can be ejected radially from the end opening, and water can be ejected from the first horizontal opening and the second horizontal opening between the end openings so as to spread in a film shape. . Thereby, even when the water pressure of tap water is low, the water can be spread in a fan shape and sprayed on the laundry.

In the washing machine of the present invention, the opening areas of the first horizontal opening and the second horizontal opening may be smaller than the cross-sectional areas of the first water pipe and the second water pipe. Good. According to this structure, it is easy to accumulate water in the first water pipe part and the second water pipe part. Therefore, even if the water pressure of tap water is low, fan-shaped shower water is used by utilizing the water column heads (heads) of the first water pipe part and the second water pipe part, Bernoulli's theorem (law of conservation of energy), etc. It can be sprayed and sprayed evenly on the laundry.

Further, in the washing machine of the present invention, the first horizontal opening and the second horizontal opening further include jaws. The jaw portion includes a throttle surface that squeezes the flow path cross-sectional area inside each of the first horizontal opening and the second horizontal opening, and each of the first horizontal opening and the second horizontal opening. It is good also as a structure further equipped with the receding surface which recedes below with respect to the extending direction of a corresponding 1st water pipe part and 2nd water pipe part on the outer side. According to this structure, each horizontal opening part of the shape which does not drop the momentum of shower water by making the water pressure in an opening part high by a jaw part can be shape | molded only by the extraction direction of a metal mold | die. That is, each horizontal opening can be easily molded without adding a slide mechanism to the mold. Thereby, the water supply part which has a horizontal opening part can be manufactured efficiently and cheaply.

The washing machine of the present invention can evenly apply shower water to the laundry over a wide range by disposing the plurality of water supply portions at positions away from each other even when the tap water pressure is low. Therefore, it is useful in fields such as washing machines where further improvement in cleaning performance is desired.

DESCRIPTION OF SYMBOLS 1,101

Washing tub

1a, 32 Opening part 2,102 Washing machine main body 3,103 Upper housing | casing 4,104 Clothes inlet 5,105 Cover body 6,106 Detergent storage case 7,107 Flow

path structure part

7a, 107a Flow Road structure part

upper surface

7b, 107b Flow path structure part lower surface 7b1, 120

Rib

8, 108 Detergent dissolving part 8a Flowing water surface 8b Surrounding wall 9,109 Detergent aqueous solution 10,110

Motor

11, 111

First drain part

12, 112

Second Drainage parts

13 and 113 Laundry tub opening inner wall 14 First storage room 15 Second storage room 16 First waterproof wall (waterproof part)
17 Second waterproof wall (waterproof part)
18 Water supply valve 19 Operation unit 20

21, 121 Slit (detergent aqueous solution flow hole)
22 Crushing chamber 23 Partition wall 24 Mixing chamber 25 First flow down hole 26 Second flow down hole 27 Detergent aqueous solution speed adjustment wall 28a Water splash suppression wall 28b Second water splash suppression wall 28c Third water

splash suppression wall

29, 40 Drainage Hole 30 Sliding surface 31 Sliding surface 33 Front edge portion 34 Sliding surface 35

Claw

36, 136 Beam portion 37 Claw 38 Support portion 39 Position suppressing portion 41 Lateral flow passage 42 Flow passage restricting portion 43 First water pipe portion 44 Second water pipe portion 45 Spherical surface portion 46 First horizontal opening (first urging portion)
47 Second horizontal opening (second urging portion)
48 1st water supply part 49 2nd water supply part 50,150,150a, 150b Shower water 51 End part opening part 52 Jaw part 53 Restriction surface 54 Retraction surface 55,155 Laundry 56 Stirring blade 57 Detergent dissolving blade 58 Detergent injection Port 58a End portion 59 Detergent flow path 60 Outer tank 114

Holding member

130, 131 Sliding surface 134

Edge portion

135, 135a, 135b, 137 Claw 151 Water supply portion 152 First discharge port 153 Second discharge port 154 Restriction portion

Claims

A laundry tub for storing laundry;
A first water supply section for supplying water to a position eccentric from the rotation center of the washing tub;
A washing machine comprising: a second water supply unit that supplies water to a position that is substantially symmetrical to the first water supply unit with respect to the rotation center of the washing tub.
The washing machine according to claim 1, wherein the first water supply unit and the second water supply unit are disposed on the left and right of the upper rear of the washing tub.
The washing tub has a first rotation state that rotates clockwise, and a second rotation state that rotates counterclockwise,
The first water supply unit supplies water in a direction substantially opposite to the moving direction of the washing tub in the first rotation state, and the second water supply unit is in the second rotation state. The washing machine according to claim 1, wherein the washing machine is configured to supply water in a direction substantially opposite to a moving direction of the washing tub.
Further provided with a detergent storage case for storing the detergent,
The washing machine according to claim 1, wherein the detergent storage case is disposed between the first water supply unit and the second water supply unit.
The first water supply unit includes a first horizontal opening and a first water pipe that supplies water to the first horizontal opening,
The second water supply section includes a second horizontal opening and a second water pipe section for supplying water to the second horizontal opening,
The first horizontal opening and the second horizontal opening further have end openings at their left and right ends,
The washing machine according to claim 1, wherein the end opening has an opening size larger than a vertical opening size of the first horizontal opening and the second horizontal opening.
6. The washing machine according to claim 5, wherein respective opening areas of the first horizontal opening and the second horizontal opening are smaller than the cross-sectional areas of the corresponding first water pipe part and the second water pipe part. .
The first horizontal opening and the second horizontal opening further include a jaw,
The jaw is
A throttle surface that squeezes the cross-sectional area of the flowing water inside each of the first horizontal opening and the second horizontal opening;
A receding surface that recedes downward with respect to the extending direction of the corresponding first water pipe part and the second water pipe part on the outside of each of the first horizontal opening part and the second horizontal opening part. The washing machine according to claim 5.