JP6976037B2 - Washing machine - Google Patents

Description

The present invention relates to a drum-type washing machine and a drum-type washer-dryer.

In the drum-type washing machine, an outer tub for storing water in the housing is vibration-proof supported, and a drum, which is a washing and dehydrating tub, is rotatably supported in the outer tub via a motor. During the dehydration step, the laundry contained in the drum is dehydrated by rotating the drum at high speed. At this time, if the laundry in the drum is offset (unbalanced), an exciting force is generated due to the imbalance of the centrifugal force. Due to this vibrating force, at least the vibration system including the drum, the outer tank, and the motor vibrates, which may cause vibration and noise. Therefore, this type of drum-type washing machine is provided with a vibration-proof member that supports the outer tub from below, and suppresses the vibration of the vibration system.

In a washing machine such as a drum-type washing machine in which the rotation axis of the drum is substantially horizontal, the center of gravity of the vibration system moves in the front-rear direction before and after the laundry such as clothes is put into the drum. That is, the positional relationship between the position of the center of gravity of the vibration system and the anti-vibration member changes depending on the amount of load held by the outer tub such as laundry and water. When the position of the center of gravity of the vibration system is in front of or behind the anti-vibration member, the larger the load amount and the longer the distance between the position of the center of gravity of the vibration system and the position of the anti-vibration member, the greater the load amount and the distance. The moment force consisting of the product of and becomes large, and the outer tank becomes easy to tilt. When the inclination of the outer tank becomes large, not only the vibration state changes, but also the gap relationship between the outer tank and the housing changes. As a result, the conditions under which the outer tank and the housing are likely to collide change, and vibration and noise may become excessive depending on the load amount, and the structure and control to prevent them may become complicated. .. Therefore, in order to prevent the vibration and noise from becoming excessive, it is necessary to prevent the outer tank from being excessively tilted by the load amount, that is, the stability of the vibration system with respect to the load amount.

Therefore, as a prior art, Patent Document 1 states, "By supporting a supported portion composed of a water tank, a drum, a motor, etc. with one suspension on the front side and two suspensions on the rear side of the center of gravity, the vehicle can stand on its own in a stable manner. In addition, by tilting the three suspensions back and forth and attaching them, vibration in the front-back direction can be better suppressed. "

Further, in Patent Document 2, "a predetermined space is provided between the first anti-vibration member supporting the water tank and the second anti-vibration member in the front-rear direction. As a result, the water tank has a front-rear direction. It is described that "it is stably supported by the first anti-vibration member and the second anti-vibration member", and further, "the predetermined distance between the first anti-vibration member and the second anti-vibration member is such that the water tub and the washing tub are separated from each other." It is preferable that the range includes the center of gravity of the included system in the no-load state and the center of gravity in the rated load state. According to this configuration, the washing machine is in the no-load state and in the rated load state. Even when the center of gravity of the system moves in the front-rear direction between the time when the washing machine is operated, the center of gravity is located between the first anti-vibration member and the second anti-vibration member. It is possible to suppress the complexity of vibration. "

Japanese Unexamined Patent Publication No. 2003-79995 Japanese Unexamined Patent Publication No. 2013-46843

However, in the technique disclosed in Patent Document 1, the outer tub is supported by three anti-vibration members in order to improve the stability of the vibration system, but the anti-vibration members are compared with two washing machines. Therefore, there is a problem that the cost of the anti-vibration member and the cost of the washing machine increase. Therefore, the above-mentioned Patent Document 1 is not preferable as a configuration for improving the stability of the vibration system without increasing the number of vibration-proof members.

Further, in Patent Document 2, two anti-vibration members arranged at predetermined intervals in the front-rear direction are provided so as to include the center of gravity of the vibration system at the lightest no load between the anti-vibration members. This prevents the posture of the outer tank from changing. However, in this configuration, as the amount of movement of the center of gravity of the vibration system due to the load amount increases, the distance between the two anti-vibration members increases. That is, the distance between the center of gravity of the vibrating system at the time of maximum load and the anti-vibration member arranged behind the center of gravity of the vibrating system at the time of no load is widened. As a result, at the time of maximum load, the load applied to the anti-vibration member arranged on the front side of the two anti-vibration members becomes larger than that of the other anti-vibration member, and the front end of the outer tank is tilted downward. .. In particular, when increasing the capacity of the drum, there is often room in front of the housing where the flow lines of people are, so by extending the drum in the front-back direction, the amount of movement of the center of gravity of the vibration system due to the load amount can be increased. It tends to grow. Therefore, Patent Document 2 has a problem that the stability of the vibration system with respect to the load amount is not sufficient in the case of a large-capacity drum.

An object of the present invention is to vibrate at least the drum, the outer tub, and the motor against a change in the load amount of laundry, water, etc., without increasing the number of anti-vibration members even in a large-capacity drum. The purpose is to provide a washing machine with improved system stability.

In order to solve the above problems, the washing machine of the present invention includes an outer tub for storing water, a drum which is a washing / dehydrating tub rotatably provided in the outer tub, and a motor for rotationally driving the drum. one a front antivibration member for supporting the lower front of the outer tub upwards, a side damping member after the one that supports the lower rear of the outer tub upwardly, the The front anti-vibration member and the rear anti-vibration member are arranged in a V shape when viewed from the front, and the outer tank can be divided into a tank cover with an opening and a water tank with a back surface on a dividing surface, and the front anti-vibration member can be divided. The vibration-proofing member and the rear-side vibration-proofing member are arranged in front of the center of gravity of the system including at least the outer tank, the drum, and the motor when no load is applied, and the front-side vibration-proofing member is at least the above-mentioned. It is arranged between the center of gravity of the system including the outer tank, the drum, and the motor at the maximum load and the divided surface of the outer tank, and the rear anti-vibration member is at least when there is no load. It is configured to be arranged between the center of gravity and the center of gravity at the time of the maximum load.

According to the present invention, the two anti-vibration members arranged at a distance from each other in the front-rear direction can be arranged closer to the center of gravity of the vibration system at the maximum load, so that the anti-vibration member can be arranged even in the case of a large-capacity drum. The stability of the vibration system with respect to the load amount can be improved without increasing the quantity of the vibration system.

It is a right side view which shows the internal structure of the drum type washing machine which concerns on this Embodiment example. (Example 1) It is a front view which shows the internal structure of the drum type washing machine which concerns on this Embodiment example. (Example 1) It is a schematic diagram which simply showed the positional relationship of the main element of the drum type washing machine which concerns on the Example of this Embodiment. (Example 1) It is a schematic diagram which simply represented the movement of the center of gravity of the drum type washing machine which concerns on the Example of this Embodiment. (Example 1) It is a rear view which shows the internal structure of the drum type washing machine which concerns on this Embodiment example. (Example 2) It is a schematic diagram which simply showed the positional relationship of the main element of the drum type washing machine which concerns on the Example of this Embodiment. (Example 3)

Hereinafter, examples of embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

<Example 1>
FIG. 1 is a right side view showing the internal structure of the drum type washing machine in the present embodiment, and FIG. 2 is a front view showing the internal structure of the drum type washing machine. In the front view of FIG. 2, the front side of the paper surface is shown as the front side, and the depth direction of the paper surface is shown as the rear side. Z in FIG. 1 represents the rotation axis of the drum 21 and the motor 22.

As shown in FIG. 1, the drum-type washing machine is provided with a loading port 1a for loading and unloading laundry in substantially the center of a housing 1 constituting the outer shell, and a door 2 is provided in the loading port 1a. It is attached so that it can be opened and closed. The operation panel 3 on the upper part of the housing 1 is electrically connected to the control device 4 for sequentially controlling the operation, and sets the operation course and displays the operation state. Inside the housing 1, an outer tank 23 for storing water, a drum 21 for storing clothes, and a motor 22 for rotationally driving the drum 21 are provided. The loading port 1a of the housing 1, the opening 23a of the outer tub 23, and the opening 21a of the drum 21 communicate with each other, and the laundry can be taken in and out of the drum 21 by opening the door 2.

The drum 21 is formed in a substantially cylindrical shape having an opening 21a and a back surface, and is contained in an outer tank 23. The back surface of the drum 21 is connected to the motor 22 via the shaft 22a. The drum 21 is rotationally driven by the motor 22 in both left-handed rotation (counterclockwise when viewed from the front of the drum 21) and right-handed rotation (clockwise when viewed from the front of the drum 21). The inner peripheral wall of the drum 21 is provided with a plurality of lifters 21b for lifting laundry and a plurality of through holes 21c for dehydration. A cylindrical fluid balancer 21d is provided at the front end of the drum 21. The rotation axis Z of the drum 21 is provided so as to be substantially horizontal or inclined so that the front side is higher than the rear side. The dehydration rotation direction indicated by the arrow A (see FIG. 2) is based on the rotation direction when the rotation speed is increased to the maximum rotation speed, and is left rotation in the example of the present embodiment.

The outer tank 23 is formed in a substantially cylindrical shape having a front surface and a back surface, and can be divided into a tank cover 23b having an opening 23a and a water tank 23c having a back surface by a dividing surface 23d. The outer tank 23 has an opening 23a on the front surface connected to the inlet 1a of the housing 1 by a bellows 26 which is an annular packing, and is sealed with water by closing the door 2. The divided surface 23d is arranged in front of the center of the outer tank 23 in the front-rear direction, and the tank cover 23b can be removed with the front anti-vibration member 24 and the rear anti-vibration member 25 described later attached to the water tank 23c. Is possible.

A vibration detecting means 30 for detecting the vibration of the outer tank 23 is provided on the lower side of the outer tank 23. The vibration detecting means 30 is electrically connected to the control device 4. Since the vibration detecting means 30 is provided behind the divided surface 23d, that is, in the water tank 23c, the tank cover 23b can be removed without changing the connection with the control device 4. The vibration detecting means 30 may be arranged on the upper part of the outer tank 23 near the control device 4, or may be arranged on the tank cover 23b near the operation panel 3.

On the lower side of the outer tank 23, a drain hose 13 having a drain valve 13b in the path is connected to the drain port 13a. Further, a water supply hose 10 having a water supply valve 10b and a detergent container 12 as a path is connected to the left side when viewed from the front of the outer tank 23, and by opening the water supply valve 10b, the inside of the outer tank 23 can be seen from the water supply port 10a. It is possible to supply water to the hose. The amount of water in the outer tank 23 can be detected by the water level detecting means 14.

A weight 29 is provided on the upper side of the outer tank 23 for the purpose of reducing vibration. The weight 29 is provided above or in front of the front anti-vibration member 24 and is fixed to the tank cover 23b. The weight 29 does not necessarily have to be one, and may be provided separately on the upper side and the lower side of the rotation shaft Z. Further, in order to facilitate the removal of the tank cover 23b by reducing the weight, the weight 29 may be provided in the water tank 23c.

On the upper side of the outer tank 23, a front suspension spring 27 for maintaining the posture of the outer tank 23 and a rear suspension spring 28 are provided. One end of the front suspension spring 27 is connected to the outer tub 23 and the other end is connected to the housing 1, and the outer tub 23 is suspended diagonally upward. One end of the rear suspension spring 28 is connected to the outer tub 23 and the other end is connected to the housing 1, and the outer tub 23 is suspended from the front suspension spring 27 in the opposite direction in the front-rear direction. The front suspension spring 27 and the rear suspension spring 28 do not need to be directly connected to the outer tank 23 or the housing 1, but are connected via a member coated with a lubricant or the like in order to improve durability. Is also good.

At the lower part of the outer tank 23, in order to prevent the front end or the rear end of the outer tank 23 from tilting downward, the front anti-vibration member 24 and the rear anti-vibration member 25 are side surfaces at the connection portion with the outer tank 23. It is provided at a predetermined interval visually. The front anti-vibration member 24 includes a damper 24a that generates a damping force, a compression coil 24b that generates a spring force, a rotatably deformable rubber bush 24c (also provided at the upper end of the damper 24a), and an outer tank. It includes an upper damper base 24d fixed to 23 and a lower damper base 24e fixed to the housing 1. Since this configuration is the same for the rear anti-vibration member 25, the description thereof will be omitted. The front anti-vibration member 24 and the rear anti-vibration member 25 are arranged so that the distance in the left-right direction is narrower at the upper end than at the lower end, and a "H" is drawn in front view. The damper 24a includes, for example, an oil damper utilizing the viscous resistance of the enclosed liquid, a friction damper utilizing the friction of the sliding portion, an active damper provided with an actuator, and the like. Further, the damper 24a may be directly connected to the outer tank 23 instead of being connected to the upper damper base 24d (lower damper base 24e) via the rubber bush 24c as in the example of the present embodiment.

Here, FIG. 3 shows a system (hereinafter referred to as a vibration system) including at least an outer tank 23, a drum 21, a motor 22, and a weight 29 for the purpose of explaining the front anti-vibration member 24 and the rear anti-vibration member 25. , And other major elements are simply represented. The vibration system is an element that vibrates integrally with the outer tub 23, and includes a load amount of laundry, water, etc. held in the outer tub 23. G0 in FIG. 3 represents the position of the center of gravity of the vibration system under no load, and G1 represents the position of the center of gravity of the vibration system at the time of maximum load.

The no-load state is a state in which there is no load amount such as laundry and water held in the outer tub 23, and no water is contained in the outer tub 23. That is, when there is no load, the load consisting of the product of the mass of the vibration system and gravity is the smallest condition. Since the mass of the motor 22 is relatively large, the center of gravity G0 under no load is located behind the center of the drum 21 in the Z direction of the rotation axis.

On the other hand, the maximum load means that the maximum mass of laundry that can be stored in the drum 21 in a dry state (hereinafter referred to as a rated load) is put into the drum 21, and the outer tub 23 is further described in the washing process or the rinsing process described later. The water stored inside is at the maximum water level. That is, at the maximum load, the load consisting of the product of the mass of the vibration system and the gravity is the largest condition. The center of gravity of the vibration system moves forward as the load amount increases from G0 at no load, and is located at the frontmost position at G1 at maximum load. This is because the center of gravity of the load itself is located substantially in the center of the drum 21 with respect to the rotation axis Z, and as the load amount increases, the influence becomes larger than the mass of the motor 22. The movement of the center of gravity due to such an increase in the load amount is remarkable because the closer the rotation axis Z of the drum 21 is to the horizontal, the easier it is for the load to move forward.

For example, when the rated load is 10 kg, the mass of the laundry including water increases to 30 to 50 kg, which is about 3 to 5 times, and when the water is full, about 20 to 40 kg of water is stored in the outer tank 23. Therefore, the front anti-vibration member 24 and the rear anti-vibration member 25 support a mass of about 90 kg of the vibration system.

Here, both the front anti-vibration member 24 and the rear anti-vibration member 25 are arranged in front of the center of gravity G0 of the vibration system when there is no load. That is, from the rear, the center of gravity G0 of the vibration system when no load is applied, the center line L2 of the rear anti-vibration member 25, and the center line L1 of the front anti-vibration member 24 are arranged in this order. According to this, the center of gravity G0 of the vibration system at the lightest no-load is mainly supported by the rear anti-vibration member 25, and conversely, the load load G1 of the vibration system at the heaviest maximum load is supported by the front anti-vibration member 24. Since it is supported by the two rear anti-vibration members 25, the outer tank 23 can be stably supported even when the amount of movement of the center of gravity of the vibration system is large.

It is desirable that the front anti-vibration member 24 is arranged at the center of gravity G1 of the vibration system at the time of maximum load or in front of it. According to this, the center of gravity G1 of the vibration system at the time of maximum load is located between the front anti-vibration member 24 and the rear anti-vibration member 25. The center L3 of the front anti-vibration member 24 and the rear anti-vibration member 25 in the front-rear direction is closer to the center of gravity G1 of the vibration system at the time of maximum load than the center of gravity G0 of the vibration system at the time of no load. Therefore, the stability of the vibration system at the maximum load can be further improved. In this configuration, the distance between the center of gravity G0 of the vibration system and the front anti-vibration member 24 is long when there is no load, but the influence is small because the force for tilting the outer tank 23 is the smallest when there is no load.

Here, FIG. 4 schematically shows the movement of the center of gravity of the vibration system according to the load amount and the magnitude of the load applied to the center of gravity of the vibration system by using the front side vibration isolation member 24, the rear side vibration isolation member 25, and the drum 21. It is a representation. A uniform load P depending on the amount of load is applied to substantially the center of the drum 21 in the front-rear direction, and a load F2 is generated vertically downward. On the other hand, a load F0 is applied vertically downward to the center of gravity G0 of the vibration system when there is no load. When the load amount increases and the uniform load P increases, the center of gravity of the vibration system approaches the center of gravity G1 of the vibration system at the time of maximum load, and the magnitude of the load also approaches F1 at maximum. Then, the maximum load F1 causes the maximum amount of contraction of the front anti-vibration member 24 or the rear anti-vibration member 25. At this time, the closer the distance between the front anti-vibration member 24 and the rear anti-vibration member 25 is, the smaller the difference in the amount of shrinkage between them and the smaller the inclination of the outer tank 23. On the contrary, when the load amount is small, even if the distance between the front anti-vibration member 24 and the rear anti-vibration member 25 is long, the supporting mass is also small, so the difference in the amount of shrinkage is small. Therefore, as in the example of the present embodiment, by supporting the vicinity of the center of gravity G1 of the vibration system at the time of maximum load by the front side vibration isolation member 24 and the rear side vibration isolation member 25, the vibration system is stabilized against an increase or decrease in the load amount. You can improve your sex.

Further, the front anti-vibration member 24 is provided behind the divided surface 23d, that is, in the water tank 23c. According to this, since the water tank 23c is a bottomed cylindrical type and has strength as compared with the tank cover 23b having the opening 23a, it is possible to stably support the center of gravity G1 of the vibration system at the time of maximum load.

On the other hand, the rear anti-vibration member 25 is provided on the side where the dehydration rotation direction of the drum 21 faces downward, as shown by an arrow A (see FIG. 2). According to this, in the vibration state of the elliptical orbit (see arrow B in FIG. 2) in which the outer tank 23 has a major axis diagonally upward to the right, the amount of change in expansion and contraction of the rear vibration isolator 25 and the change in expansion and contraction speed become large. , It is possible to efficiently apply damping to the outer tank 23 to reduce vibration. Such a vibration state is likely to occur when the resonance rotation speed of the mode in which the outer tank 23 vibrates in the left-right direction and the mode in which the outer tank 23 vibrates in the vertical direction are close to each other. Easy to become. That is, the vicinity of the center of gravity G0 of the vibration system under no load vibrates from the right direction and the upward direction to the left direction and the downward direction, so that an elliptical orbit as shown by the arrow B in FIG. 2 is obtained. Therefore, by providing the rear anti-vibration member 25 in the vicinity of the center of gravity G0 of the vibration system when there is no load, it is possible to efficiently reduce the vibration. When the dehydration rotation direction of the drum 21 is left-handed as in the embodiment of the present embodiment, the rear anti-vibration member 25 is on the left side when viewed from the front, and when the dehydration rotation direction is right-handed, the rear anti-vibration member 25 is used. Is on the right side.

Further, the front anti-vibration member 24 and the rear anti-vibration member 25 are arranged behind the connection portion between the front suspension spring 27 and the outer tank 23 and in front of the connection portion between the rear suspension spring 28 and the outer tank 23. Has been done. According to this, even when the center of gravity G1 of the vibration system at the maximum load is in front of the front vibration isolator member 24, the front end or the rear end of the outer tank 23 is pulled upward, so that the stability of the vibration system is improved. Can be improved. In order to further improve the stability of the vibration system under the maximum load, the front anti-vibration member 24 and the rear anti-vibration member 25 are arranged behind the connection portion between the rear suspension spring 28 and the outer tank 23. Then, both the front suspension spring 27 and the rear suspension spring 28 may pull the front end of the outer tank 23 upward. This suspends the upper part of the outer tank 23 in front of the front anti-vibration member 24 so as to draw a "V" in a side view.

In the above configuration, the operation will be described. When the door 2 is opened, the laundry is put into the drum 21, a predetermined amount of detergent is put into the detergent container 12, and then the operation is started, the washing step is first executed. In the washing step, the water supply valve 10b is opened and the supplied water enters the outer tank 23 together with the detergent via the detergent container 12 and the water supply hose 10. After executing this operation for a predetermined time, the drum 21 executes a stirring operation of repeating forward rotation, stop, reverse rotation, and stop for a predetermined time. At this time, the laundry housed in the drum 21 is lifted in the rotational direction by the lifter 21b provided on the inner peripheral wall of the drum 21, and the stirring operation of dropping from the lifted height position is repeated. It is washed by the action of tapping.

After performing this operation for a predetermined time, the washing step is completed and the dehydration step is executed. In this dehydration step, the drain valve 13b is first opened, and the water in the outer tank 23 is drained to the outside of the machine via the drain hose 13. Next, the drum 21 is rotated in the dehydration rotation direction of arrow A (left rotation in this embodiment), reaches a predetermined rotation speed (for example, 900 r / min), and then rotates for a predetermined time to be included in the laundry. Dehydrate the water.

After performing this dehydration step for a predetermined time, the water supply valve 10b is opened and water is supplied, the water is poured into the outer tank 23 through the detergent container 12 and the water supply hose 10, and the rinsing step is carried out. In this rinsing step, as in the washing step described above, a stirring operation that repeats the operations of normal rotation, pause, inversion, and pause is executed for a predetermined time. At this time, the laundry is lifted in the rotational direction by the lifter 21b provided on the inner peripheral wall of the drum 21, and the stirring operation of dropping from the lifted height position is repeated, so that the detergent component contained in the laundry is diluted. , Rinsing is done. In the case of a drum-type washer-dryer having a drying function, the drying step is executed after this.

As described above, in the embodiment of the present embodiment, the front anti-vibration member 24 and the rear anti-vibration member 25 are arranged in front of the center of gravity G0 of the vibration system at the lightest no load, so that the vibration at the maximum load occurs. Since the center of gravity G1 of the system can be brought closer to the front anti-vibration member 24 and the rear anti-vibration member 25, even when the movement of the center of gravity of the vibration system due to the load amount is large, such as in a large-capacity drum, it is possible to prevent the system from moving. It is possible to prevent the outer tank 23 from tilting and improve the stability of the vibration system with respect to the load amount without increasing the number of vibration members.

Although the drum type washing machine has been described in the example of the present embodiment, the same effect can be obtained by a drum type washing / drying machine having a drying function. Further, in the example of the present embodiment, the dehydration rotation direction is left rotation, but the reverse right rotation is also possible. The same effect can be obtained by setting it to the right side.

<Example 2>
FIG. 5 is a schematic view showing the internal structure of the back surface of the drum type washing machine in the second embodiment. A motor 50 is provided on the lower rear side of the outer tank 23. A front anti-vibration member 54 is provided in front of the motor 50, that is, on the right side of the outer tank 23, and a rear anti-vibration member 55 is provided on the left side of the outer tank 23. Further, the pulley 51 provided on the back surface of the outer tank 23 is connected to the back surface of the drum 21 to rotatably support the drum 21. The power of the motor 50 is transmitted to the pulley 51 via the belt 52, and the drum 21 can be rotationally driven in the left-right direction. In the example of this embodiment, the dehydration rotation direction is left rotation.

According to the above configuration, since the rear side of the front side anti-vibration member 54 is wider than that of the rear side anti-vibration member 55, it is possible to secure a space for arranging the motor 50. That is, since the motor 50 can be made large, it is possible to output a large output while suppressing an increase in the rotation speed, and it is possible to suppress noise caused by the rotation speed.

In the example of the present embodiment, the front anti-vibration member 54 and the motor 50 are arranged on the right side in front view, but when the dehydration rotation direction is clockwise rotation, the front anti-vibration member 54 and the motor 50 are arranged in front. The same effect can be obtained by arranging it on the left side visually.

<Example 3>
FIG. 6 is a schematic view showing the internal structure of the upper surface of the drum type washing machine in the third embodiment. FIG. 6 shows four A1, A2, A3 and A4 when the outer tank 23 is viewed from above by the intermediate line X between the front anti-vibration member 24 and the rear anti-vibration member 25 and the rotation axis Z of the drum 21 orthogonal to the intermediate line X. It is shown by dividing it into areas. The front suspension spring 60 provided at the front end of the outer tank 23 is arranged closer to the rear anti-vibration member 25 with respect to the rotation axis Z of the drum 21, and the rear suspension spring 61 provided at the rear end of the outer tank 23 is , Is arranged closer to the front anti-vibration member 24 with respect to the rotation axis Z of the drum 21. That is, the rear anti-vibration member 25 is arranged in the area A1, the front suspension spring 60 is arranged in the area A2, the front anti-vibration member 24 is arranged in the area A3, and the rear suspension spring 61 is arranged in the area A4. The other configurations and the operation control are the same as those in the first embodiment, and the same reference numerals are given and the description thereof will be omitted.

According to the above configuration, since the area A2 or A4 in which the outer tank 23 is not supported from below is suspended upward by the front suspension spring 60 and the rear suspension spring 61, the area A2 or the area A4 of the outer tank 23 is suspended. Can be prevented from tilting downward. Further, since the front suspension spring 60 and the rear suspension spring 61 are arranged so as to avoid the upper part of the rotation axis Z of the drum 21 where the space above the outer tank 23 is the narrowest, the space above the outer tank 23 is wide. Therefore, the collision between the outer tank 23 and the housing 1 can be prevented.

When the dehydration rotation direction of the drum 21 is opposite, the same effect can be obtained by making the drum 21 symmetrical.

1 Housing 21 Drum 22 Motor 23 Outer tank 23b Tank cover 23c Water tank 23d Dividing surface 24 Front anti-vibration member 25 Rear anti-vibration member 27 Front suspension spring 28 Rear suspension spring 29 Weight

Claims (1)

An outer tank for storing water and
A drum, which is a washing and dehydrating tank rotatably provided in the outer tank,
A motor that drives the drum to rotate,
One front anti-vibration member that supports the lower front of the outer tank upward.
E Bei a one and side damping member after the supporting upward the lower rear of the outer tub,
The front anti-vibration member and the rear anti-vibration member are arranged in a V shape in a front view in a washing machine.
The outer tank can be divided into a tank cover with an opening and a water tank with a back surface on a dividing surface.
The front anti-vibration member and the rear anti-vibration member are arranged in front of the center of gravity of the system including at least the outer tank, the drum, and the motor when no load is applied, and the front anti-vibration member is provided. At least the center of gravity of the system including the outer tank, the drum, and the motor at the maximum load is arranged between the divided surface of the outer tank, and the rear anti-vibration member is at least the absence. A washing machine characterized in that it is arranged between the center of gravity at the time of load and the center of gravity at the time of the maximum load.

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