JP7500462B2 - washing machine - Google Patents

Description

The present invention relates to a washing machine equipped with a detergent dispenser for dispensing detergent.

In recent years, washing machines that automatically dispense detergent into the washing tub have become widespread. For such washing machines, a model has been proposed that is equipped with a removable detergent tank, in which detergent is stored in advance so that detergent is automatically dispensed during washing without bothering the user. Considering the ease of use when the user fills the detergent tank with detergent or cleans it, it is preferable for the detergent tank to have a structure that allows it to be removed from the washing machine body (see, for example, Patent Document 1).

JP 2020-80918 A

The washing machine described in Patent Document 1 includes a washing machine main body, a water tub, and an automatic dispenser that automatically dispenses a laundry treatment agent into the water tub. The automatic dispenser has a treatment agent tank capable of storing the laundry treatment agent, and a tank housing section that detachably houses the treatment agent tank. The treatment agent tank has a handle section provided below an upper surface step that constitutes a step provided on the upper surface of the washing machine main body.

In the washing machine described above, in order to facilitate user operation, a handle is provided on the treatment agent tank and is hidden in the upper step to make the handle less noticeable. However, since it is designed to match the overall design of the washing machine, the shape of the handle is restricted, for example by being integrated with the treatment agent tank. In addition, if the connection between the treatment agent tank and the washing machine body is configured to be press-fitted to prevent detergent leakage, there is an issue that a certain amount of force is required to attach and detach it.

The present invention was made to solve the above problems, and aims to provide a washing machine that allows the detergent tank to be attached and detached with little force.

The washing machine according to the present invention is a washing machine equipped with a detergent input section for inputting detergent, and includes a detergent tank for storing detergent, and a tank storage section to which the detergent tank is attached so as to be freely attached and detached. The detergent tank has a tank discharge section for discharging the stored detergent, a rotatably attached handle, and a handle shaft for supporting the handle. The tank storage section has a main body inlet to which the tank discharge section is connected, and a handle storage section to store the handle. The handle has a handle extension section extending from a point where it is engaged with the handle shaft, a grip whose end is connected to the handle extension section and is held by a user, and an attachment/detachment auxiliary section extending from a point where it is engaged with the handle shaft to the opposite side of the handle extension section. The handle storage section has a pressing section against which the attachment/detachment auxiliary section comes into contact and is pressed when the handle is rotated.

In the washing machine according to the present invention, the pressing portion may have a first contact surface against which the attachment/detachment assisting portion contacts when the handle is rotated in a direction to remove it from the handle housing portion, and the force of the attachment/detachment assisting portion pressing against the first contact surface may move the tank discharge portion in a direction away from the main body inlet.

In the washing machine according to the present invention, the pressing portion may have a second contact surface against which the attachment/detachment assisting portion contacts when the handle is rotated in a direction to be accommodated in the handle accommodating portion, and the force of the attachment/detachment assisting portion pressing against the second contact surface may be used to move the tank discharge portion in a direction approaching the main body inlet.

In the washing machine according to the present invention, the attachment/detachment assistance part may be configured to have a curved surface at a location where it comes into contact with the pressing part.

In the washing machine according to the present invention, the handle shaft is arranged along the direction in which the sides of the detergent tank face each other, and the grip is configured to move between the top and side of the detergent tank, and when the detergent tank is attached or detached, the handle is removed from the handle housing when the grip is moved above the detergent tank, and is housed in the handle housing when the grip is moved to the side of the detergent tank.

According to the present invention, by rotating the movable handle, the principle of leverage can be utilized to assist the user in attaching and detaching the detergent tank with light force.

1 is a schematic cross-sectional view of a washing machine according to a first embodiment of the present invention; FIG. 2 is a schematic top view of the washing machine shown in FIG. 1 . 3 is a schematic top view showing a state in which a tank housing part lid of the washing machine shown in FIG. 2 is open. FIG. 4 is an enlarged top view showing the vicinity of a tank housing of the main body housing. FIG. FIG. 5 is an enlarged perspective view showing the vicinity of the handle receiving portion in FIG. 4 in a further enlarged manner. FIG. FIG. FIG. 4 is an enlarged top view showing a tank housing portion in which a detergent tank is housed. FIG. 4 is a schematic side view showing the tank housing section and the detergent tank in a housing state. FIG. 4 is a schematic side view showing the tank housing section and the detergent tank in a removed state. FIG. FIG. 11 is a schematic side view showing a tank housing section and a detergent tank in a housing state in a second embodiment of the present invention. FIG. 11 is a schematic side view showing the tank housing section and the detergent tank in a removed state in the second embodiment of the present invention.

First Embodiment
Hereinafter, a washing machine according to a first embodiment of the present invention will be described with reference to the drawings.

Figure 1 is a schematic cross-sectional view of a washing machine according to a first embodiment of the present invention, Figure 2 is a schematic top view of the washing machine shown in Figure 1, and Figure 3 is a schematic top view of the washing machine shown in Figure 2 with the tank storage section lid open.

The washing machine 1 according to the first embodiment of the present invention includes a main body housing 10 made of metal, synthetic resin, or the like. The main body housing 10 is rectangular and has a laundry inlet 10a on the top surface for inserting laundry. The laundry inlet 10a is covered by a top lid 11 that is supported so as to be rotatable, and the laundry inlet 10a is exposed by opening the top lid 11.

The washing tub 12 and the water tub 13 are housed inside the main body housing 10. The washing tub 12 and the water tub 13 are shaped like cylindrical cups with an open top and a bottom, and are arranged coaxially with their respective central axes vertical, with the water tub 13 on the outside and the washing tub 12 on the inside.

Agitator blade 14 is rotatably arranged on the bottom surface of washing tub 12. In addition, drive unit 20 having brake mechanism 21 and drive motor 22 is attached to the underside of water tub 13. Washing tub 12 and agitator blade 14 are connected to drive unit 20, and by switching the clutch, it is possible to select which one to rotate, and depending on the process, it is possible to rotate only agitator blade 14 or both washing tub 12 and agitator blade 14.

The washing machine 1 is equipped with a water supply unit 30 that supplies water to the washing tub 12. The water supply unit 30 is connected to a water supply via a water supply pipe 31. A detergent dispenser 32 that dispenses detergent (and finishing agent) into the washing tub 12 is also connected to the water supply unit 30. The detergent dispenser 32 receives detergent from a detergent tank 50, mixes the detergent with the water supplied from the water supply unit 30, and dispenses the detergent into the washing tub 12. The detergent dispenser 32 also has a measuring unit that measures at least the finishing agent, and measures the amount of finishing agent to be dispensed as instructed by the control unit. The water supply unit 30 and the detergent dispenser 32 are connected via a valve, and the timing of dispensing the detergent and finishing agent can be adjusted by controlling the opening and closing of the valve.

A drain pipe 40 is connected to the water tub 13, and a drain valve 41 is provided on the drain pipe 40. Water can be stored in the washing tub 12 by supplying water with the drain valve 41 closed, and water can be drained from the washing tub 12 by opening the drain valve 41.

The washing machine 1 is provided with a tank housing lid 15 at the rear of the top surface of the main body housing 10. The tank housing lid 15 covers the top of the tank housing 60 (see FIG. 4), and opening it exposes the detergent tank 50 housed in the tank housing 60. In this embodiment, the washing machine is configured to house two detergent tanks 50, with a first tank 50a and a second tank 50b housed side by side. The first tank 50a and the second tank 50b house the detergent that is automatically dispensed into the washing tub 12, and can be attached to and detached from the main body housing 10.

In addition to the detergent tank 50, the washing machine 1 is provided with a manual input section as a section for storing detergent. When washing, the user inputs a single load of detergent into the manual input section, and the detergent is input into the washing tub 12 by water supplied from the water supply section 30 passing through the manual input section. In this embodiment, the water supply section 30 has a path for supplying water to the washing tub 12 via the detergent input section 32, and a path for supplying water to the washing tub 12 via the manual input section. However, this is not limited thereto, and the path for supplying water to the washing tub 12 may be via both the detergent input section 32 and the manual input section.

In addition, a water supply connection 33 for connecting the water supply pipe 31 to a water tap is provided on the rear top surface of the main body housing 10, further rearward than the tank housing 60. By connecting the water supply connection 33 to a water tap, water can be supplied to the water supply pipe 31. Note that the washing machine 1 may be provided with an auxiliary connection for supplying water from a source other than a water tap. For example, a hose with a pump may be connected to the auxiliary connection to take in leftover bath water. The auxiliary connection may be located further rearward than the tank housing 60, similar to the water supply connection 33.

Figure 4 is an enlarged top view showing the vicinity of the tank housing of the main body housing, and Figure 5 is an enlarged perspective view showing the vicinity of the left handle housing of the first housing shown in Figure 4.

Figure 4 shows some of the components located at the rear top surface of the main body housing 10 near the tank housing section 60. In addition, in Figure 4, the tank housing section lid 15, detergent tank 50, etc. have been removed.

The main body housing 10 is provided with a first storage section 60a and a second storage section 60b, which are recessed downward, as the tank storage section 60. In the washing machine 1, the first tank 50a is stored in the first storage section 60a, and the second tank 50b is stored in the second storage section 60b. The main difference between the first storage section 60a and the first tank 50a and the second storage section 60b and the second tank 50b is that they are substantially linearly symmetrical, and there is no significant difference in the functions of the two. In other words, the parts provided in the first storage section 60a and the first tank 50a are also provided in the second storage section 60b and the second tank 50b in a substantially similar manner. Therefore, in the following, the first storage section 60a and the first tank 50a will be described in detail, and the description of the second storage section 60b and the second tank 50b will be omitted.

As described above, the detergent tank 50 is mounted on the bottom surface 61 of the tank housing 60 and attached to the main body housing 10. The bottom surface of the detergent tank 50 is provided with a tank discharge section 51e (see FIG. 7 described later) for discharging the detergent contained therein, and is connected to the main body inlet 62 provided in the tank housing 60. Although omitted in FIG. 4 and other figures, the main body inlet 62 and the tank discharge section 51e are provided with check valves so that the detergent supplied from the detergent tank 50 to the detergent input section 32 does not flow back. In addition, the main body inlet 62 is configured to apply pressure to hold down the tank discharge section 51e with a sealing member such as rubber to prevent the connected tank discharge section 51e from coming off due to unintended weak force or to prevent a gap from forming that causes the detergent to leak.

The storage bottom surface 61 is shaped according to the bottom surface of the detergent tank 50, and in this embodiment, is generally rectangular when viewed from above. The short side of the storage bottom surface 61 is aligned along the direction in which the front and rear of the washing machine 1 face each other (the up-down direction in FIG. 4), and the long side of the storage bottom surface 61 is aligned along the direction in which the left and right side surfaces of the washing machine 1 face each other (the left-right direction in FIG. 4). The first storage section 60a and the second storage section 60b are arranged side by side along their long sides.

A handle housing 63 is provided on part of the outer periphery of the tank housing 60 at a position higher than the housing bottom 61. The handle housing 63 is shaped to fit the handle 54, and accommodates the handle 54 (see FIG. 6, described later) attached to the detergent tank 50. A side wall stands along the outer periphery of the housing bottom 61, and the handle housing 63 is provided to surround part of the outer side of the side wall.

5 shows an enlarged view of the upper portions of the side walls of the tank storage section 60 that face each other in the longitudinal direction, with the end of the handle storage section 63 located nearby. The end of the handle storage section 63 is provided with a storage lower surface section 63a (part of the pressing section, equivalent to the first abutment surface) that faces the underside of the stored handle 54, and a storage protrusion section 63b (part of the pressing section, equivalent to the second abutment surface) that protrudes so as to cover a portion of the storage lower surface section 63a. A gap is provided between the storage lower surface section 63a and the storage protrusion section 63b, and a portion of the handle 54 (attachment/detachment assistance section 54c shown in FIG. 8) fits into the gap. The positional relationship between the handle 54 and the handle storage section 63 will be described with reference to FIGS. 10 and 11, which will be described later.

Figure 6 is a top view showing the detergent tank, Figure 7 is a bottom view showing the detergent tank, and Figure 8 is a side view showing the detergent tank. Note that Figures 6 to 8 show the first tank 50a, which is one of the detergent tanks 50.

The detergent tank 50 consists of a tank body 51, a tank lid 52, a handle 54, and a small window cover 53.

The tank body 51 is a roughly rectangular container with an open top surface, and is roughly rectangular when viewed from above, with rounded corners. A tank discharge section 51e is provided on the bottom surface of the tank body 51 near the end in the longitudinal direction, and the tank discharge section 51e is provided at a position overlapping with the body inlet 62 described above.

The tank lid 52 is shaped to fit the tank body 51, and covers the top surface of the tank body 51 when attached to the tank body 51. A packing is sandwiched between the tank lid 52 and the tank body 51 to seal the gap. There are no particular limitations on the packing, and it may be attached so as to cover the outer periphery of the tank lid 52, or along the upper end of the tank body 51.

The tank lid 52 has a small window that is partially open, and the small window cover 53 covers the small window from above. The small window cover 53 is configured to be openable, closable, and detachable from the tank lid 52, and the user can refill detergent by opening (or removing) the small window cover 53.

Handle shafts 51a are provided on both longitudinally opposing sides of the tank body 51. One end of the handle 54 is engaged with the handle shaft 51a provided on one side of the tank body 51, and the other end is engaged with the handle shaft 51a provided on the other side, and the handle 54 is configured to rotate around the engaged point as a fulcrum. When the handle 54 is rotated, the part extending from one end to the other end (grip 54b) moves between the top and side of the detergent tank 50. When the detergent tank 50 is accommodated in the tank accommodation section 60, the handle 54 fits into the handle accommodation section 63 when the handle 54b is moved to the side of the detergent tank 50. When removing the detergent tank 50 from the tank housing 60, the user moves the handle 54b above the detergent tank 50, and then holds the handle 54 to suspend the detergent tank 50, allowing the user to easily carry the detergent tank 50.

The handle 54 has a handle extension 54a extending from the point where it is engaged with the handle shaft 51a, a grip 54b whose end is connected to the handle extension 54a and is held by the user, and an attachment/detachment assistance part 54c extending from the point where it is engaged with the handle shaft 51a to the opposite side of the handle extension 54a. In other words, the handle 54 is shaped like a flat bar with both ends bent, and both ends are supported by the handle shaft 51a. The point where the handle 54 is supported by the handle shaft 51a is not at the very end, but at a position slightly shifted inward, and the part extending from the supported point to the end is the attachment/detachment assistance part 54c.

Figure 8 shows the state in which the grip 54b has been moved to the side of the detergent tank 50, and in this state, the downward-facing portion of the attachment/detachment assistance part 54c is the lower-surface abutment part 54d, and the upward-facing portion is the upper-surface abutment part 54e. The lower-surface abutment part 54d is formed with a curved surface that extends to the tip of the attachment/detachment assistance part 54c, and the distance from the handle shaft 51a increases as it approaches the tip of the attachment/detachment assistance part 54c. Note that this is not limited to the lower-surface abutment part 54d, and each part of the handle 54 may also be curved with rounded corners.

Figure 9 is an enlarged top view showing the tank housing section in which the detergent tank is housed.

As shown in FIG. 9, when the handle 54 is stored in the handle storage section 63, the attachment/detachment assisting section 54c fits between the storage bottom surface section 63a and the storage protrusion section 63b. For the sake of explanation, the state in which the handle 54 is stored in the handle storage section 63 by moving the handle 54b to the side of the detergent tank 50 is sometimes referred to as the storage state. In contrast, the state in which the handle 54b is moved above the detergent tank 50 and the handle 54 is removed from the handle storage section 63 is sometimes referred to as the removal state.

Next, the movement of the handle 54 when attaching or detaching the detergent tank 50 to or from the tank housing section 60 will be described with reference to Figures 10 and 11.

Figure 10 is a schematic side view showing the tank housing section and detergent tank in a housed state, and Figure 11 is a schematic side view showing the tank housing section and detergent tank in a removed state. Note that in Figures 10 and 11, a portion of the side wall of the tank housing section 60 is shown in perspective for ease of viewing.

As shown in FIG. 10, in the stored state, the upper surface abutment portion 54e faces the storage protrusion portion 63b, and the lower surface abutment portion 54d faces the storage bottom surface portion 63a. The tank discharge portion 51e is pressed into the main body inlet 62. Also, as shown in FIG. 11, in the removed state, the tip of the attachment/detachment assistance portion 54c abuts against the storage bottom surface portion 63a. The bottom surface of the tank main body 51 is separated from the storage bottom surface 61, and the tank discharge portion 51e is not pressed into the main body inlet 62.

When storing the detergent tank 50 in the tank storage section 60, the user holds the handle 54b to suspend the detergent tank 50, and the handle 54b is positioned above the detergent tank 50 as in the removed state. Then, when the detergent tank 50 is inserted from above into the tank storage section 60, the tip of the attachment/detachment assistance section 54c abuts against the storage bottom section 63a before the bottom surface of the tank body 51 comes into contact with the storage bottom surface 61, as shown in FIG. 11. From this state, the handle 54 is rotated with the handle shaft 51a as a fulcrum, and the handle 54b is moved in the storage direction D1 from above to the side of the detergent tank 50, and stored in the handle storage section 63. At this time, the force rotating the handle 54 is transmitted to the detergent tank 50 as a force (arrow F1) pushing down on itself via the vicinity of the upper surface abutment portion 54e that abuts against the storage protrusion 63b, and the tank discharge portion 51e is pressed into the main body retraction port 62. That is, the upper surface abutment portion 54e of the attachment/detachment auxiliary portion 54c presses the storage protrusion 63b (pressing portion) upward, pushing the attachment/detachment auxiliary portion 54c downward, and the detergent tank 50 is stored in the tank storage portion 60. In this way, the removal state transitions to the storage state.

When the detergent tank 50 is removed from the tank storage section 60, since it is in the storage state, the handle 54b is located on the side of the detergent tank 50. From this state, the handle 54 is rotated around the handle shaft 51a as a fulcrum, and the handle 54b is moved in the removal direction D2 from the side of the detergent tank 50 upward, and removed from the handle storage section 63. As a result, the part of the handle 54 that abuts against the storage bottom surface 63a (pressing portion) and presses the storage bottom surface 63a shifts from the bottom surface abutment portion 54d to the tip of the attachment/detachment assistance portion 54c, and the handle shaft 51a is separated from the storage bottom surface 63a. In other words, the force (arrow F2) is transmitted to the detergent tank 50 as a force pushing itself up.

In this way, by rotating the movable handle 54, rather than simply holding the handle 54 and pulling up the detergent tank 50, the principle of leverage can be utilized to assist the user in attaching and detaching the detergent tank 50 with a light force. Furthermore, by providing a curved surface on the attachment/detachment assistance portion 54c, the handle 54 can be smoothly rotated along the curved surface, further assisting in attaching and detaching the detergent tank 50.

It is preferable that the length from the handle shaft 51a to the handle extension 54a is longer than the length from the handle shaft 51a to the attachment/detachment assistance part 54c. This allows the force applied from the grip 54b to the end of the handle extension 54a to be multiplied by the principle of leverage and act on the attachment/detachment assistance part 54c. This allows the detergent tank 50 to be reliably detached with less force.

As described above, when the detergent tank 50 is accommodated in the tank accommodation section 60, the handle 54b is moved to the side of the detergent tank 50. At this time, the attachment/detachment assistance section 54c extends toward the side opposite the handle 54b. In the detergent tank 50, a force that rotates the handle 54b is applied to one side, and a force from the attachment/detachment assistance section 54c is applied to the opposite side. The combination of the two forces presses the detergent tank 50 downward overall, preventing the detergent tank 50 from tilting and increasing its stability.

Second Embodiment
Next, a washing machine according to a second embodiment of the present invention will be described with reference to the drawings. In the second embodiment, the structures of the detergent tank 50 and the tank housing 60 are different from those in the first embodiment, and the second embodiment has substantially the same configuration as the first embodiment. Therefore, the different parts will be described in detail and the description of the other parts will be omitted.

Figure 12 is a schematic side view showing the tank housing section and detergent tank in a housed state in the second embodiment of the present invention, and Figure 13 is a schematic side view showing the tank housing section and detergent tank in a removed state in the second embodiment of the present invention.

In the second embodiment, an attachment/detachment assisting mechanism is provided to assist in attachment/detachment of the detergent tank 50 to the tank storage section 60. The attachment/detachment assisting mechanism is composed of a tank receiving portion 73b provided on the detergent tank 50 and a main body driving portion 73a provided on the tank storage section 60. Specifically, the tank receiving portion 73b is a protrusion, and the main body driving portion 73a is a lever that rotates around an axis as a fulcrum. The tank receiving portion 73b is provided at a position that abuts against the main body driving portion 73a when the detergent tank 50 is stored in the tank storage section 60. The main body driving portion 73a rotates to push down or up the tank receiving portion 73b. In this way, the main body driving portion 73a applies a force to the tank receiving portion 73b to move the detergent tank 50 relative to the tank storage section 60. The detergent tank 50 transitions between a stored state and a removed state by being moved by the main body driving portion 73a. In this way, the attachment/detachment assisting mechanism provides assistance, making it easier to remove the detergent tank 50.

The attachment/detachment assistance mechanism is not limited to the above-mentioned configuration, and may be, for example, a rack and pinion mechanism in which the tank receiving portion 73b is a rack and the main body driving portion 73a is a pinion.

In the second embodiment, a sensor is provided to detect the position of the detergent tank 50 relative to the tank storage section 60. Specifically, the storage bottom surface 61 is provided with a microswitch 71 that detects whether the bottom surface of the tank body 51 is in contact with the storage bottom surface 61. In addition, a reed switch (mark detection sensor 72a) that detects whether the magnet (tank mark 72b) provided on the tank body 51 is in proximity is provided on the side wall of the tank storage section 60. The positional relationship between the tank mark 72b and the mark detection sensor 72a can be adjusted as appropriate. For example, when the tank discharge section 51e is pulled out from the main body retraction port 62, the mark detection sensor 72a may detect the tank mark 72b. However, this is not limited to this, and the tank mark 72b may be anything that can be detected by the mark detection sensor 72a, such as an uneven surface or a colored portion provided on the side surface of the tank body 51, and the mark detection sensor 72a may be an optical sensor.

The attachment/detachment assistance mechanism may be provided with a button or the like and may be operated by a user's command, or may be operated according to the position of the detergent tank 50 detected by a sensor.

The embodiments disclosed herein are illustrative in all respects and are not intended to be a basis for restrictive interpretation. Therefore, the technical scope of the present invention is not interpreted solely by the embodiments described above, but is defined based on the claims. Furthermore, all modifications within the scope and meaning equivalent to the claims are included.

LIST OF SYMBOLS 1 Washing machine 10 Main body housing 50 Detergent tank 51 Tank body 51a Handle shaft 51e Tank discharge section 52 Tank lid 53 Small window cover 54 Handle 54a Handle extension section 54b Grip 54c Attachment/detachment assistance section 54d Lower surface abutment section 54e Upper surface abutment section 60 Tank storage section 61 Storage bottom surface 62 Main body inlet 63 Handle storage section 63a Storage lower surface section (part of the pressing section, corresponding to the first abutment surface)
63b: Housing protrusion (part of the pressing portion, corresponding to the second contact surface)

Claims (5)

A washing machine having a detergent dispenser for dispensing detergent,
A detergent tank for storing a detergent;
a tank housing portion to which the detergent tank is detachably attached,
The detergent tank has a tank discharge section for discharging the stored detergent, a handle attached to the tank so as to be rotatable, and a handle shaft for supporting the handle.
The tank housing portion has a main body inlet port to which the tank discharge portion is connected and a handle housing portion to which the handle is housed,
The handle is
A handle extension portion extending from a portion where the handle shaft is engaged;
a gripping hand having an end connected to the handle extension for being grasped by a user;
and an attachment/detachment assistance portion extending from the portion engaged with the handle shaft to the opposite side of the handle extension portion,
The handle accommodating portion has a pressing portion against which the attachment/detachment assisting portion comes into contact and is pressed when the handle is rotated. 2. The washing machine according to claim 1,
the pressing portion has a first contact surface with which the attachment/detachment assisting portion contacts when the handle is rotated in a direction to remove it from the handle accommodating portion, and the force of the attachment/detachment assisting portion pressing against the first contact surface moves the tank discharge portion in a direction away from the main body inlet. The washing machine according to claim 1 or 2,
the pressing portion has a second abutment surface with which the attachment/detachment assisting portion abuts when the handle is rotated in a direction to be accommodated in the handle accommodating portion, and the force of the attachment/detachment assisting portion pressing against the second abutment surface moves the tank discharge portion in a direction approaching the main body inlet. A washing machine according to any one of claims 1 to 3,
The washing machine, wherein the attachment/detachment assisting part has a curved surface at a portion where it comes into contact with the pressing part. A washing machine according to any one of claims 1 to 4,
The handle shaft is provided along a direction in which the side surfaces of the detergent tank face each other,
The handle is configured to move between an upper portion and a side portion of the detergent tank,
When the detergent tank is attached or detached, when the grip is moved above the detergent tank, the handle is removed from the handle storage section, and when the grip is moved to the side of the detergent tank, the handle is stored in the handle storage section.

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