TWI794415B - （無） - Google Patents

Abstract

The present invention provides a washing machine capable of compacting a cabinet. The washing machine 1 includes a first washing tank 110 and a second washing tank 210 . The first washing tub 110 is rotatably supported around a first rotation shaft 114 . Second washing tub 210 is rotatably supported around second rotation shaft 214 . The second washing tank 210 is disposed above the first washing tank 110 . The first inclination angle θ1 of the first rotation axis 114 relative to the horizontal direction A is greater than the second inclination angle θ2 of the second rotation axis 214 relative to the horizontal direction A.

Description

washing machine

The present invention relates to washing machines.

The washing machine described in Patent Document 1 includes a body. Inside the body, a first cleaning inner tub and a second cleaning inner tub are provided. The rotation axis of the first cleaning inner tub is parallel to the rotation axis of the second cleaning inner tub. An outer tub is provided outside the first cleaning inner tub and the second cleaning inner tub. The body consists of a rack and a panel. The outer barrel is fixed on the rack. A suspension spring is arranged on the upper part of the outer barrel. A damping device is provided at the bottom of the outer barrel. A tension spring is provided in the middle of the outer barrel.

Patent Document 1: Chinese Patent Application Publication No. 103850085.

However, in a state where the rotation shafts of the first cleaning inner tub and the second cleaning inner tub are parallel to each other, the first cleaning inner tub and the second cleaning inner tub are aligned in the vertical direction. Therefore, the dimension in the up-down direction of the body (casing) becomes large. In addition, in order to be able to install the washing machine in various places, it is desired to make the housing of the washing machine compact.

An object of the present invention is to provide a washing machine in which a housing can be made compact.

According to the first aspect of the present invention, the washing machine includes a first washing tub and a second washing tub. The first washing tub is rotatably supported around the first rotation shaft. The second washing tub is rotatably supported around the second rotation shaft. The second washing tank is arranged above the first washing tank. Should A first inclination angle of the first rotation axis relative to the horizontal direction is greater than a second inclination angle of the second rotation axis relative to the horizontal direction.

According to the present invention, the housing of a washing machine including a plurality of washing tubs can be made compact.

1: washing machine

10a: The first box part

10b: The second box part

13: back part

13a: first back part

13b: second back part

13c: depression

50: cover

110: First sink

114: the first axis of rotation

140: The first drainage path part

210: second washing tank

214: Second axis of rotation

240: Second drainage path part

A: Horizontal direction

D: loading surface

θ1: first inclination angle

θ2: second tilt angle

Fig. 1 is a front view of a washing machine according to a first embodiment.

Fig. 2 is a side view of the washing machine according to the first embodiment.

Fig. 3 is a sectional view of the washing machine.

Fig. 4 is a schematic diagram of a washing machine.

Fig. 5 is a side view of a washing machine according to a second embodiment.

Fig. 6 is a schematic diagram of a washing machine.

Fig. 7 is a side view of a washing machine according to a third embodiment.

Embodiments of the present invention will be described with reference to the drawings. In addition, the same reference symbol is attached|subjected to the same or a considerable part, and the description is not repeated.

[First Embodiment]

Referring to Fig. 1 and Fig. 2, a washing machine 1 according to a first embodiment of the present invention will be described. Fig. 1 is a front view of a washing machine 1 according to a first embodiment. Fig. 2 is a side view of the washing machine 1 according to the first embodiment. In FIGS. 1 and 2 , the up-down direction is a direction parallel to the vertical plane. Each of the left-right direction and the front-back direction is a direction parallel to the horizontal plane. Also, the left-right direction is a direction perpendicular to the front-back direction. The washing machine 1 washes laundry in a state where it is installed in the posture shown in FIGS. 1 and 2 .

As shown in FIGS. 1 and 2 , washing machine 1 includes housing 10 , first door 20 , and second door 30 .

The case 10 has a hollow shape. The box body 10 has a front part 11 , a pair of side parts 12 , a back part 13 , a top part 14 , and a bottom part 15 . Each of the front part 11 , the pair of side parts 12 , the back part 13 , the top part 14 , and the bottom part 15 has a plate shape. Each of the front part 11 , a pair of side parts 12 , the back part 13 , the top part 14 , and the bottom part 15 forms the outer surface of the case 10 .

The front portion 11 denotes a portion located at the front of the case body 10 among the case body 10 . The pair of side parts 12 represent portions located on the sides of the box body 10 among the box body 10 . The pair of side surfaces 12 are arranged at a distance from each other in the left-right direction. The back portion 13 indicates a portion located in the rear of the case 10 among the case 10 . The top surface portion 14 indicates a portion located in the upper portion of the case 10 among the case 10 . The bottom 15 denotes a portion located at a lower portion of the case 10 among the case 10 .

The first door 20 and the second door 30 are disposed at the front of the box body 10 . The first door 20 and the second door 30 are rotatably attached to the front part 11 . The first door 20 and the second door 30 separate the inside of the box 10 from the outside of the box 10 . The inside of the housing 10 represents a space surrounded by a front face 11 , a pair of side faces 12 , and a rear face 13 .

The first door 20 and the second door 30 are arranged so as to line up in the vertical direction. The second door 30 is disposed above the first door 20 .

The washing machine 1 further includes a water supply port 40 . The water supply port 40 is disposed on the upper part of the tank body 10 . The water supply port 40 is connected with a water tap. The water discharged from the faucet is supplied to the washing machine 1 through the water supply port 40 .

Next, the washing machine 1 will be further described with reference to FIG. 3 . FIG. 3 is a sectional view of the washing machine 1 .

As shown in FIG. 3 , the washing machine 1 includes a first washing unit 100 and a second washing unit 200 . Each of the first washing unit 100 and the second washing unit 200 can wash the laundry independently of each other. The second washing unit 200 is disposed above the first washing unit 100 .

First, the first washing unit 100 will be described.

As shown in FIG. 3 , the first washing unit 100 has a first washing tank 110 and a first water tank 120 . Each of the first washing tank 110 and the first water tank 120 is arranged inside the housing 10 . The first washing tank 110 is disposed inside the first water tank 120 .

The first washing tank 110 has a first side portion 111 , a first bottom portion 112 , and a first opening portion 113 . The first side portion 111 has a cylindrical shape with open front and rear ends. The first bottom portion 112 is disposed at the rear end portion of the first side portion 111 . The first bottom portion 112 blocks the rear end portion of the first side portion 111 . The first opening portion 113 is formed at the front end portion of the first side portion 111 . The first opening 113 communicates with the inside of the first washing tub 100 and the outside of the first washing tub 110 . The first opening 113 faces the first door 20 . Furthermore, the interior of the first washing tank 110 represents the space surrounded by the first side portion 111 and the first bottom portion 112 .

The first washing tank 110 also has a first rotation shaft 114 . The first washing tub 110 is rotatably supported around a first rotation shaft 114 . The first rotation axis 114 represents an axis passing through the center of the first bottom 112 and the center of the first opening 113 .

When the first door 20 is opened, the first opening 113 faces the outside of the box 10 . As a result, the user can take out and put laundry into the first washing tub 110 through the first opening 113 .

Washing machine 1 further includes first drive unit 130 . The first driving part 130 includes a first motor 131 and a first output shaft 132 . The first output shaft 132 is connected to the first washing tank 110 . The first output shaft 132 rotatably supports the first washing tub 110 around the first rotation shaft 114 . The first motor 131 transmits power to the first washing tub 110 through the first output shaft 132 . As a result, first washing tub 110 rotates around first rotating shaft 114 .

In the state where the laundry, water, and detergent are supplied to the inside of the first washing tub 110 , when the first washing tub 110 is rotated by the power of the first driving unit 130 , the laundry is washed.

The washing machine 1 further includes a first drain passage portion 140 . The first drain path portion 140 is a member for guiding the drain drained from the inside of the first washing tub 110 to the outside of the washing machine 1 . The outside of washing machine 1 specifically means the outside of casing 10 .

The first drain path part 140 includes, for example, a first drain pipe, a first drain filter disposed on the first drain pipe, and a first drain valve. The first drain communicates with the inside of the first washing tub 110 and also communicates with the outside of the washing machine 1 .

The first drain path portion 140 is disposed below the front portion of the first washing tub 110 .

Next, the second washing unit 200 will be described.

As shown in FIG. 3 , the second washing unit 200 has a second washing tank 210 and a second water tank 220 . Each of the second washing tank 210 and the second water tank 220 is disposed inside the housing 10 . The second washing tank 210 is disposed inside the second water tank 220 .

The second washing tank 210 has a second side portion 211 , a second bottom portion 212 , and a second opening portion 213 . The second side portion 211 has a cylindrical shape with open front and rear ends. The second bottom portion 212 is disposed at the rear end portion of the second side portion 211 . The second bottom portion 212 blocks the rear end portion of the second side portion 211 . The second opening portion 213 is formed at the front end portion of the second side portion 211 . The second opening 213 communicates with the inside of the second washing tub 210 and the outside of the second washing tub 210 . The second opening 213 faces the second door 30 . Furthermore, the interior of the second washing tank 210 represents the space surrounded by the second side portion 211 and the second bottom portion 212 .

The second washing tank 210 is disposed above the first washing tank 110 .

The second washing tank 210 also has a second rotating shaft 214 . Second washing tub 210 is rotatably supported around second rotation shaft 214 . The second rotation axis 214 represents an axis passing through the center of the second bottom portion 212 and the center of the second opening 213 .

When the second door 30 is opened, the second opening 213 faces the outside of the box 10 . As a result, the user can take out and put laundry into the second washing tub 210 through the second opening 213 .

Washing machine 1 further includes second drive unit 230 . The second driving part 230 includes a second motor 231 and a second output shaft 232 . The second output shaft 232 is connected to the second washing tank 210 . The second output shaft 232 rotatably supports the second washing tub 210 around the axis of the second rotation shaft 214 . The second motor 231 transmits power to the second washing tank 210 through the second output shaft 232 . As a result, second washing tub 210 rotates around second rotating shaft 214 .

The washing machine 1 further includes a second drain passage portion 240 . The second drain path part 240 is a member for guiding the drain drained from the inside of the second washing tub 210 to the outside of the washing machine 1 .

The second drain path part 240 includes, for example, a second drain pipe, a second drain filter provided in the second drain pipe, and a second drain valve. The second drain communicates with the inside of the second washing tub 210 and also communicates with the outside of the washing machine 1 .

The second drain path portion 240 is disposed between the rear portion 115 of the first washing tub 110 and the rear portion 215 of the second washing tub 210 (see FIG. 4 ).

Furthermore, each of the first washing unit 100 and the second washing unit 200 can perform washing operation, rinsing operation, dehydration operation, and drying operation.

Next, the first washing tank 110 and the second washing tank 210 will be described with reference to FIG. 4 . FIG. 4 is a schematic diagram of the washing machine 1 .

FIG. 4 shows the first inclination angle θ1 and the second inclination angle θ2. The first inclination angle θ1 represents an inclination angle of the first rotation axis 114 relative to the horizontal direction A. As shown in FIG. The second inclination angle θ2 represents the inclination angle of the second rotation axis 214 relative to the horizontal direction A. As shown in FIG. The horizontal direction A is parallel to the horizontal plane and indicates a forward direction.

In FIG. 4 , the direction in which the tip of the arrow indicating the horizontal direction A rotates clockwise around the base end is defined as a positive direction (“+” in FIG. 4 ). In addition, in FIG. 4 , the direction in which the tip of the arrow indicating the horizontal direction A rotates counterclockwise around the base end is defined as a negative direction ("-" in FIG. 4).

When each of the first rotation axis 114 and the second rotation axis 214 is inclined in a positive direction with respect to the horizontal direction A, each of the first inclination angle θ1 and the second inclination angle θ2 is larger than the angle 0°.

On the other hand, when each of the first rotation axis 114 and the second rotation axis 214 is inclined in a negative direction with respect to the horizontal direction A, each of the first inclination angle θ1 and the second inclination angle θ2 is smaller than the angle 0°.

As shown in FIG. 4 , the first inclination angle θ1 is greater than the second inclination angle θ2 (the first inclination angle θ1 > the second inclination angle θ2 ). Therefore, the rear part 215 of the second washing tank 210 can be arranged separately from the rear part 115 of the first washing tank 110 . As a result, the second space B2 for arranging the second drainage path portion 240 can be secured between the rear portion 115 of the first washing tub 110 and the rear portion 215 of the second washing tub 210 .

In addition, in the first embodiment, in order to ensure the second space B2, the entire second washing tub 210 is not separated from the first washing tub 110, but only the rear portion 215 of the second washing tub 210 is separated from the first washing tub 110. In other words, in the first embodiment, in order to ensure the second space B2, the second rotating shaft 214 is not moved upward in parallel with the first rotating shaft 114 from the state where the first rotating shaft 114 and the second rotating shaft 214 are parallel to each other. The inclination angle of the second rotation axis 214 relative to the first rotation axis 114 is changed accordingly. Therefore, compared with the case where the second rotation shaft 214 is moved upward in parallel, it is possible to suppress an increase in the dimension H in the vertical direction of the housing 10 . As a result, housing 10 of washing machine 1 can be made compact.

Next, the first washing tank 110 will be described with reference to FIG. 4 .

As shown in FIG. 4 , the first inclination angle θ1 is greater than the angle 0° (first inclination angle θ1 > angle 0°). In the first embodiment, the first inclination angle θ1 is, for example, approximately 8°. Therefore, the first opening 113 of the first washing tub 110 is arranged upward relative to the horizontal direction A. As shown in FIG. As a result, the user can easily perform the first operation of taking out and putting the laundry into and from the first washing tub 110 . The reason is because the user usually performs the first work while looking down at the first washing tub 110 .

Moreover, since the first inclination angle θ1 is larger than the angle 0°, the front portion 116 of the first washing tub 110 can be arranged separately from the bottom portion 15 of the tank 10 . As a result, between the front portion 116 and the bottom portion 115 of the first washing tub 110, the first space B1 for arranging the first drain path portion 140 can be secured.

Next, the second washing tank 210 will be described with reference to FIG. 4 .

As shown in FIG. 4 , the second inclination angle θ2 is an angle of 0° or less (second inclination angle θ2≦angle 0°). In the first embodiment, the second inclination angle θ2 is approximately 0° (the second inclination angle θ2≒0°). Therefore, in 1st Embodiment, the 2nd opening part 213 of the 2nd washing tub 210 is arrange|positioned so that it may face the substantially horizontal direction A. As shown in FIG. As a result, the user can easily perform the second work of taking out and putting the laundry into and out of the second washing tub 210 . The reason is because the user usually performs the second work with a line of sight substantially at the same height as second washing tub 210 .

Also, when the second inclination angle θ2 is approximately 0°, the second washing tank 210 is installed approximately horizontally. When the second washing tank 210 is disposed approximately horizontally, vibration of the second washing tank 210 can be easily controlled. Therefore, when the washing machine 1 is in operation, shaking of the upper part of the washing machine 1 due to the vibration of the second washing tub 210 can be suppressed. As a result, the posture of the washing machine 1 can be further stabilized when the washing machine 1 is in operation.

Furthermore, when the second inclination angle θ2 is smaller than the angle 0° (second inclination angle θ2<angle 0°), the second opening 213 of the second washing tub 210 is arranged to be directed downward relative to the horizontal direction A. In this case, the second inclination angle θ2 is, for example, -2°, and the second side portion 211 of the second washing tank 210 It is inclined further downward than the horizontal direction A. Therefore, when the laundry is washed in the second washing tub 210 , the laundry in the second washing tub 210 moves forward due to its own weight and contacts the second door 30 . As a result, since the second washing tub 210 can make the laundry contact the second door 30 and rotate together with the second washing tub 210, it is possible to effectively remove the dirt from the laundry.

Furthermore, when the second inclination angle θ2 is smaller than the angle 0°, unevenness may be formed on the inner surface 31 of the second door 30 . As a result, since the laundry can be rotated in contact with the unevenness of the second door 30 , dirt from the laundry can be more effectively removed by the so-called washboard effect.

Furthermore, in the first embodiment, although the first inclination angle θ1 of the first washing tank 110 is greater than the angle 0°, the present invention is not limited thereto. Alternatively, the first inclination angle θ1 of the first washing tank 110 may be an angle of 0°. As a result, the vibration of the first washing tub 110 can be controlled more easily, and the vibration of the first washing tub 110 can be suppressed. In this case, the second inclination angle θ2 of the second washing tank 210 is smaller than the angle 0°. In this case, the second inclination angle θ2 of the second washing tank 210 is set to be -2°, for example.

[Second Embodiment]

Referring to Fig. 5 and Fig. 6, a washing machine 1 according to a second embodiment of the present invention will be described. Fig. 5 is a side view of the washing machine 1 according to the second embodiment. FIG. 6 is a schematic diagram of the washing machine 1 .

In the first embodiment, the back portion 13 is formed in a substantially flat shape. On the other hand, the second embodiment differs from the first embodiment in that the back surface portion 13 is formed in a shape having concavities and convexities. Hereinafter, points different from the first embodiment will be mainly described.

As shown in FIGS. 5 and 6 , the case 10 has a first case portion 10 a and a second case portion 10 b. The first case portion 10 a represents a lower portion of the case 10 . The first box part 10a accommodates the first washing tub 110 . The second case portion 10 b represents an upper portion of the case 10 . The second box part 10b accommodates the second washing tub 210 .

The back part 13 covers the 1st washing tank 110 and the 2nd washing tank 210 from behind. The upper part of the back part 13 is recessed forward than the lower part of the back part 13 .

The back part 13 has the 1st back part 13a and the 2nd back part 13b.

The first back portion 13 a is a lower portion of the back portion 13 . The 1st back part 13a is arrange|positioned behind the 1st washing tank 110. As shown in FIG.

The second back portion 13 b is an upper portion of the back portion 13 . The 2nd back part 13b is arrange|positioned behind the 2nd washing tank 210. As shown in FIG. The second back portion 13b is located in front of the first back portion 13a.

The back portion 13 also has a recessed portion 13c. The depressed portion 13c is formed in at least a part of the second back portion 13b. The recessed part 13c is recessed forward rather than the 1st back part 13a. In the second embodiment, the depressed portion 13c is formed on the entire second back portion 13b. Therefore, in 2nd Embodiment, the whole of the 2nd back part 13b is located ahead rather than the 1st back part 13a.

When the recessed portion 13c is formed in the rear surface portion 13, the volume of the second case portion 10b becomes smaller than that of the first case portion 10a. Therefore, the projected area of the second box portion 10 b with respect to the mounting surface D is smaller than the projected area of the first box portion 10 a with respect to the mounting surface D. As shown in FIG. As a result, since the size of the upper portion becomes smaller than the size of the lower portion of the washing machine 1, the washing machine 1 can be installed stably. Furthermore, it is possible to suppress the posture instability of the washing machine 1 due to the vibration of the washing machine 1 . In addition, loading surface D shows the surface on which the washing machine 1 is placed.

The back portion 13 also has a recessed space C. As shown in FIG. The recessed space C indicates a portion located in front of the first rear portion 13 a in the space located behind the second rear portion 13 b. The recessed space C is located at the rear of the recessed portion 13c. By forming the recessed part 13c with respect to the 2nd back surface part 13b, the recessed space C is produced.

A water cock can be arranged in the recessed space C. The water tap is installed on the wall surface to supply water to the washing machine 1 . Therefore, by disposing the water plug in the recessed space C, it is possible to prevent the water plug from contacting the second back portion 13b, and The first rear surface portion 13a is arranged close to the wall surface. As a result, since the washing machine 1 can be arranged close to the wall surface, an increase in the installation space of the washing machine 1 can be suppressed.

Furthermore, in the second embodiment, the depressed portion 13c is formed on the entire second back portion 13b. However, the recessed part 13c may be formed in a part of the 2nd back part 13b. For example, the recessed part 13c may be formed only in the part which opposes a faucet among the 2nd back part 13b.

Next, the principle for forming the recessed space C will be described with reference to FIG. 6 .

As shown in FIG. 6 , the dimension β1 in the front-rear direction of the second washing tub 210 is shorter than the dimension α1 in the front-rear direction of the first washing tub 110 (dimension β1<dimension α1). Therefore, the rear part 215 of the second washing tank 210 is arranged in front of the rear part 115 of the first washing tank 110 . As a result, the second back surface 13b can be arranged in front of the first back surface 13a to form the recessed space C. As shown in FIG.

In the first embodiment, the dimension β2 of the second washing tank 210 is smaller than the dimension α2 of the first washing tank 110 (dimension β2<dimension α2). Therefore, the second washing tank 210 is smaller than the first washing tank 110 . As a result, the recessed space C can be formed more reliably. In addition, the dimension α2 of the first washing tank 110 indicates in detail the dimension of the first washing tank 110 along the first rotation axis 114 . The dimension β2 of the second washing tank 210 specifically indicates the dimension of the second washing tank 210 along the second rotation axis 214 .

In addition, the dimension β2 of the second washing tank 210 may be the same as the dimension α2 of the first washing tank 110 (dimension β2=dimension α2). That is, the size of the second washing tank 210 may be the same as that of the first washing tank 110 . In this case, since the first inclination angle θ1 is greater than the second inclination angle θ2 (the first inclination angle θ1>the second inclination angle θ2), the size β1 of the second washing tank 210 can be compared with the size of the first washing tank 110. α1 is small (size β1<size α1).

[Third Embodiment]

Referring to Fig. 7, a washing machine 1 according to a third embodiment of the present invention will be described. Fig. 7 is a side view of the washing machine 1 according to the third embodiment.

The third embodiment differs from the second embodiment in that unevenness of the side surface of the washing machine 1 is suppressed. Hereinafter, points different from the second embodiment will be mainly described.

As shown in FIG. 7 , washing machine 1 further includes a pair of cover parts 50 .

Each of the pair of cover parts 50 is a flat member. The pair of cover parts 50 are respectively fixed to the pair of side parts 12 . In addition, the cover part 50 may be formed in one part as a part of the member of the side part 12. As shown in FIG.

The pair of cover parts 50 are opposed to each other at intervals in the left-right direction. Hereinafter, it demonstrates focusing on one of a pair of cover part 50. FIG.

The cover part 50 faces the recessed part 13c from the side. The cover portion 50 covers the recessed space C from the side. The rear part 51 of the cover part 50 extends in the vertical direction along the first back part 13a. Therefore, when the washing machine 1 is viewed from the side, the unevenness of the rear surface 13 caused by the recessed portion 13c can be hidden by the cover portion 50 . As a result, the appearance of washing machine 1 can be improved when washing machine 1 is viewed from the side.

As mentioned above, the embodiment of this invention was demonstrated referring drawings (FIG. 1-FIG. 7). However, this invention is not limited to the above-mentioned embodiment, As long as it does not deviate from the range of the summary, it can implement as a 4th embodiment in various aspects (for example, (1)). In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-mentioned embodiments. For example, some constituent elements may be deleted from all the constituent elements shown in the embodiments. The drawings schematically show each constituent element as a main body for easy understanding, and the number of each constituent element shown in the drawings may be different from the actual ones depending on the drawing. In addition, each component shown in the above-mentioned embodiment is an example, and is not specifically limited, Various changes are possible within the range which does not substantially deviate from the effect of this invention.

(1) Each of the first rotating shaft 114 and the second rotating shaft 214 may be arranged horizontally so as to extend in the front-rear direction, and the dimension β1 in the front-rear direction of the second washing tank 210 may be shorter than that of the first washing tank 110 Dimension α1 in the front-back direction (dimension β1<dimension α1) (see FIG. 6 ). As a result, the rear portion 215 of the second washing tub 210 can be arranged in front of the rear portion 115 of the first washing tub 110 to form the recessed space C. As shown in FIG.

The invention can be utilized in the field of washing machines.

1: washing machine

11: front part

20: The first door

30: Second door

31: inner surface

110: First sink

113: the first opening

114: the first axis of rotation

115: Rear

116: Front

140: The first drainage path part

210: second washing tank

211: second side

214: Second axis of rotation

215: Rear

240: Second drainage path part

A: Horizontal direction

B1: the first space

B2: Second Space

H: Dimensions in the up and down direction

θ1: first inclination angle

θ2: second tilt angle

Claims (6)

A washing machine, comprising a first washing tank rotatably supported around a first rotating shaft, a second washing tank rotatably supported around a second rotating shaft, and accommodating the first washing tank and the second washing tank. The box body of the washing tank, wherein, the second washing tank is arranged above the first washing tank; the first inclination angle of the first rotation axis relative to the horizontal direction is greater than the second angle of inclination of the second rotation axis relative to the horizontal direction Two inclination angles, the box body includes: a first back part, arranged behind the first washing tank; a second back part, arranged behind the second washing tank; and a concave part, formed on the second back part At least a part of; the recessed portion is recessed forward compared with the first back portion. The washing machine according to claim 1, wherein the first inclination angle is greater than 0°; the second inclination angle is less than 0°. The washing machine according to claim 1, wherein the front-to-back dimension of the second washing tub is shorter than the front-to-back dimension of the first washing tub. The washing machine according to claim 1, further comprising a lid portion facing the recessed portion from a side. The washing machine according to claim 1, wherein the box body includes: a first box body part for accommodating the first washing tank; and a second box body part for accommodating the second washing tank; The projected area of the second box portion on the loading surface is smaller than the projected area of the first box portion on the loading surface. The washing machine according to any one of claims 1 to 5, further comprising: a first drainage path portion guiding the drainage discharged from the first washing tank to the outside of the washing machine; and a second drainage path portion, guide the drainage discharged from the second washing tank to the outside of the washing machine; the first drainage path part is arranged under the front part of the first washing tub; the second drainage path part is arranged at the front of the first washing tub between the rear and the rear of the second sink.

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