JP6193024B2 - Washing machine - Google Patents

Description

  Embodiments described herein relate generally to a washing machine.

Conventionally, in a washing machine, especially a drum type washing machine, a water tank is located inside the outer box, and a drum that is a rotating tub is located inside the water tank, and this drum is driven to rotate by a motor outside the water tank. As a result, washing, dehydration, and drying are performed. The water tank is supported by a suspension inside the outer box (see, for example, Patent Document 1).
In order to support a heavy water tank, the suspension in this washing machine is installed so that the axial direction is substantially the vertical direction, and performs a buffer function in the vertical direction. That is, the suspension in the washing machine functions effectively with respect to vibrations mainly in the vertical direction of the water tank.

However, the aquarium vibrates in the lateral direction as it swings in the lateral direction (horizontal direction) such as left and right and front and rear due to the uneven load caused by the uneven distribution of the laundry contained in the drum. The suspension cannot function effectively with respect to lateral vibration.
For this reason, in general, a space larger than the amplitude of the water tank is provided between the water tank and the outer box side plate portion present in the lateral direction of the water tank to avoid collision of the water tank with the outer box side plate portion. However, in this case, the outer box is enlarged and the overall size is increased, or the water tank and the drum are reduced in size, and the washing capacity is reduced.

  On the other hand, there is an idea to reduce vibrations in the lateral direction of the water tank by interposing a vibration absorbing member between the water tank and the outer box side plate (see, for example, Patent Document 2).

JP-A-2005-245577 JP 2012-192096 A

  In the case of what is considered as described above, the vibration absorbing member reduces vibrations in the lateral direction of the water tank, but because the structure in which the vibration absorbing member is interposed between the water tank and the outer side plate portion, the outer box Therefore, it is difficult to reduce the overall size of the water tank and the drum, and it is also difficult to increase the size of the water tank and the drum. Furthermore, it is necessary to reinforce the outer box side plate so that it does not cause deflection or deformation due to vibration transmitted through the vibration absorbing member even if it is reduced. As a result, it is more difficult to reduce the overall size.

  Accordingly, a washing machine is provided that can reduce the lateral vibration of the water tank while realizing the downsizing of the outer box and thus the overall size or the size of the water tank and the rotating tank.

The washing machine of the present embodiment includes an outer box, a water tank positioned inside the outer box, a rotating tank positioned inside the water tank and driven to rotate, and the water tank mainly on the bottom plate of the outer box. And a suspension that cushions and supports in the vertical direction, provided on the bottom plate of the outer box , arranged around the suspension , movable in the vertical direction, and includes a suppression member that suppresses lateral vibration of the water tank. The upper end portion of the restraining member is attached to a mounting plate provided on the outer peripheral side surface of the water tank in common with the upper end portion of the suspension, and the lower end portion of the restraining member is commonly used with the lower end portion of the suspension. It is attached to another attachment plate provided on the bottom plate .

Longitudinal side view of main part showing the first embodiment Longitudinal side view of the entire washing machine with a part broken away Longitudinal side view of suspension alone FIG. 1 equivalent diagram showing the second embodiment FIG. 1 equivalent view showing the third embodiment FIG. 1 equivalent view showing the fourth embodiment FIG. 1 equivalent diagram showing the fifth embodiment FIG. 1 equivalent view showing the sixth embodiment FIG. 1 equivalent diagram showing a seventh embodiment

Hereinafter, a first embodiment applied to a drum type washing and drying machine will be described with reference to FIGS. 1 to 3.
First, FIG. 2 shows the entire structure of the drum type washing and drying machine, and the outer box 1 is an outer shell. The outer box 1 has a bottom plate 1a at the bottom, and has legs 1b at the four corners of the outer lower surface of the bottom plate 1a. A laundry doorway 2 is provided at the center of the front plate (left side in FIG. 2) of the outer box 1, and a door 3 for opening and closing the door 2 is provided. Further, an operation panel 4 is provided at the upper part of the front side plate portion of the outer box 1, and a control device 5 for operation control is provided on the back side (inside the outer box 1).

A water tank 6 is disposed inside the outer box 1. The water tank 6 has a horizontal cylindrical shape whose axial direction is front and rear (left and right in FIG. 2), and is provided on the bottom plate 1a of the outer box 1 with two left and right suspensions 7 (only one on the right side is shown). It is elastically supported in the shape of an upward slope. The detailed structure of the suspension 7 will be described later.
A motor 8 and a bearing housing 9 are attached to the back of the water tank 6. In this case, the motor 8 is, for example, a direct current brushless motor, and is an outer rotor type. A rotating shaft (not shown) at the center of the rotor 8a is inserted into the water tank 6 through the bearing housing 9. ing.

  A drum 10 is disposed inside the water tank 6. This drum 10 also has a horizontal cylindrical shape with the front and rear being axially attached. By attaching it to the tip of the rotating shaft of the motor 8 at the center of the rear part, the drum 10 has a forwardly inclined shape coaxial with the water tank 6. I support it. As a result, the drum 10 is rotated by the motor 8, so that the drum 10 is a rotating tank and the motor 8 functions as a drum driving device that rotates the drum 10.

  A large number of small holes 11 (only a part is shown) are formed in the peripheral side portion (body portion) of the drum 10 over the entire area. Each of the drum 10 and the water tub 6 has openings 12 and 13 on the front surface thereof, and the laundry entrance 2 is connected to the opening 13 of the water tub 6 through an annular bellows 14. . As a result, the laundry entrance / exit 2 is connected to the inside of the drum 10 via the bellows 14, the opening 13 of the water tub 6, and the opening 12 of the drum 10.

  A drain outlet (not shown) is formed at the rear of the bottom, which is the lowest part of the water tank 6, and a drain pipe 16 is connected to the drain outlet via a drain valve 15. A drying unit 17 is disposed above and in front of the back of the water tank 6. The drying unit 17 includes a dehumidifier 18, a blower 19, and a heating device 20, and dehumidifies the air in the water tank 6, and then heats the air to return it to the water tank 6. The laundry is supposed to be dried.

  Here, the detailed structure of the suspension 7 will be described. As shown in FIG. 3, the suspension 7 is roughly composed of a damper 21 and a spring 22, and the damper 21 includes a shaft 23 and a cylinder 24. The cylinder 24 is composed of a double cylinder of an outer cylinder 24a and an inner cylinder 24b. Openings at both ends in the axial direction (up and down) of the outer cylinder 24a are closed by caps 24c and 24d, and the axial direction of the inner cylinder 24b is also the same. Seals 24e and 24f are inserted into openings at both ends.

  A piston valve 25 is attached to the lower end portion of the shaft 23, and the lower portion of the shaft 23 is inserted into the inner cylinder 24 b of the cylinder 24 together with the piston valve 25 so as to be movable in the axial direction. The portion is located above the cylinder 24 through the seal 24e, the bearing 26, and the cap 24c. The piston valve 25 has an outer peripheral surface that is in close contact with the inner peripheral surface of the inner cylinder 24b, and has a plurality of orifice holes 25a that are opened in the axial direction near the outer peripheral surface.

In the inner cylinder 24b of the cylinder 24, oil 27, which is a viscous fluid, is filled on both the upper and lower sides of the piston valve 25. That is, the damper 21 of the present embodiment is an oil damper, The orifice hole 25a is also filled.
A spring seat 28 is attached to a portion near the upper end of the shaft 23 located above the cylinder 24, and the spring (compression coil spring) 22 is interposed between the spring seat 28 and the upper end of the cylinder 24. Is interposed.
As described above, the suspension 7 is assembled.

  The shaft 23 has a mounting portion 23a at the upper end, whereas the water tank 6 has a mounting portion 6a on the outer peripheral side as shown in FIG. 2, and a mounting plate 29 is shown on the mounting portion 6a. A plurality of screws 30 shown in FIG. Then, the mounting portion 23a of the shaft 23 is inserted into the mounting plate 29 through the upper and lower vibration-proof cushions 31 and 32, and the nut 33 is screwed and tightened to the upper projecting end portion through the washer 33a. Thus, the upper end portion of the shaft 23 is attached to the mounting plate 29, and the upper end portion of the suspension 7 is attached to the water tank 6.

  On the other hand, a rod-shaped attachment member 34 shown in FIG. 3 is attached to the lower end portion of the cylinder 24. On the other hand, the attachment plate 35 shown in FIG. 2 is attached to the bottom plate 1a with a plurality of screws 36 shown in FIG. A mounting member 34 of the cylinder 24 is inserted into the mounting plate 35 via upper and lower vibration-proof cushions 37, 38, and a nut 39 is screwed into a lower projecting end portion of the mounting plate 35 via a washer 39a. By tightening, the lower end portion of the cylinder 24 is attached to the mounting plate 35, and as a result, the lower end portion of the suspension 7 is attached to the bottom plate 1a.

  In this way, the water tank 6 is mounted on the bottom plate 1a of the outer box 1 with the suspension 7 interposed therebetween, and the suspension 7 cushions and supports the water tank 6 on the bottom plate 1a of the outer box 1 mainly in the vertical direction. Yes.

  A restraining member 40 is provided on the bottom plate 1 a of the outer box 1 along with the suspension 7. In this case, the restraining member 40 is entirely composed of an elastic body, particularly a viscoelastic body, and is composed of a relatively soft rubber rod having a hardness of about 30 degrees, and particularly expands and contracts in the vertical direction. It is movable with. The restraining member 40 is made of an elastic body, particularly a viscoelastic body, and has a function of attenuating it as heat by being deformed in the shearing direction by the lateral vibration of the water tank 6.

Thus, the upper end portion of the restraining member 40 is attached to the mounting plate 29 of the water tank 6 so as not to be removable, in common with the mounting portion 23a of the shaft 23 which is the upper end portion of the suspension 7, and the lower end portion is attached. In addition, in common with the mounting member 34 of the cylinder 24 which is the lower end portion of the suspension 7, the restraining member 40 is attached to the mounting plate 35 of the bottom plate 1 a so as not to be removable. It is interposed between.
The suspension 7 and the suppression member 40 are close to each other with a distance of, for example, about 10 to 15 [cm], and the suppression member 40 is located on the front side of the suspension 7.

Next, the operation of the above configuration will be described.
In the drum-type washing and drying machine having the above-described configuration, when the control device 5 starts operation based on the operation of the operation panel 4, washing, dehydration, and drying are typically performed.

Among them, washing is performed by the drum 10 being rotated at low speed alternately in both forward and reverse directions by the motor 8 after water supply of a predetermined water level from a water supply valve (not shown) into the water tank 6 is performed. The laundry previously stored in the drum 10 is lifted and then dropped (tumbling) is repeatedly stirred and washed.
Laundry of laundry includes washing with water containing a detergent and rinsing with clean water. In either case, the above operation is performed, and after completion of these operations, the drain valve 15 is turned on. Draining is performed to open and discharge the water in the water tank 6 to the outside through the drain pipe 16.

  The dehydration is performed by rotating the drum 10 at a high speed in one direction by the motor 8 with the drain valve 15 being opened, so that the laundry after washing in the drum 10 passes through the small holes 11. Centrifugal dehydration.

  The drying is performed by rotating the drum 10 alternately in the forward and reverse directions by the motor 8 at the same time and simultaneously operating the drying unit 17. In the drying unit 17, as described above, the water tank 6 The air inside the drum 10 is dehumidified by the dehumidifier 18 and then heated by the heating device 20 and returned to the water tank 6 in a situation where the air inside is circulated by the blower 19. The laundry is dried.

  During the operation of the drum type washing and drying machine, when the drum 10 is rotated, the drum 10 vibrates, and particularly, when the drum 10 is dehydrated at a high speed, the drum 10 vibrates greatly. Further, in that case, if the laundry in the drum 10 is unevenly distributed, the drum 10 vibrates more greatly due to the uneven load. When the drum 10 vibrates in this way, the water tank 6 that accommodates the drum 10 and is integrated with the drum 10 also vibrates.

  With respect to the vibration of the water tank 6, particularly the vibration in the vertical direction, the shaft 23 of the suspension 7 reciprocates up and down in the axial direction integrally with the water tank 6 while expanding and contracting the spring 22. As the shaft 23 reciprocates, the piston valve 25 reciprocates up and down in the oil 27 in the cylinder 24, whereby the oil 27 relatively passes through the orifice hole 25 a of the piston valve 25. Here, due to the viscosity of the oil 27, a damping force is generated in the suspension 7, and the amplitude of the water tank 6 is attenuated.

  On the other hand, the lateral vibration of the water tank 6 is generated by the water tank 6 twisting around the axial center of the suspension 7. At this time, the suspension 7 is placed on the bottom plate 1 a of the outer box 1. The restraining member 40 arranged side by side becomes a resistance force due to the deformation in the shearing direction due to the torsion around the axis of the suspension 7 of the water tank 6 by the elastic force, thereby suppressing the lateral vibration of the water tank 6.

  As described above, in the above configuration, the suspension 7 that cushions and supports the water tank 6 on the bottom plate 1a of the outer box 1 mainly in the vertical direction attenuates the vibration in the vertical direction (vertical direction) of the water tank 6 and The restraining member 40 provided side by side with the suspension 7 on the bottom plate 1a suppresses the vibration in the lateral direction of the aquarium 6. In particular, in order to suppress the vibration in the lateral direction, a vibration absorbing member such as that conventionally considered is used. It is not the structure realized by interposing between the water tank and the outer box side plate part.

  Therefore, since the vibration absorbing member is not used, it is possible to reduce the size of the outer box 1 and thus the overall size, or to increase the size of the water tank 6 and hence the size of the drum 10. An increase in washing capacity can be realized. Further, the function of suppressing the lateral vibration of the water tank 6 by the suppressing member 40 can be obtained without the need to reinforce the outer box 1, and the downsizing of the outer box 1 and the overall downsizing can be realized. Is more certain.

  In this case, since the suppressing member 40 suppresses the vibration in the lateral direction of the water tank 6 by the elastic force as described above, the suppressing member 40 only needs to have elasticity. Although it may be, there is a concern that vibrations in the vertical direction of the water tank 6 may be transmitted to the bottom plate 1 a of the outer box 1. On the other hand, the restraining member 40 is movable in the vertical direction, whereby the restraining member 40 can be prevented from transmitting vibrations in the vertical direction of the water tank 6 to the bottom plate 1a of the outer box 1, and further Transmission from the bottom plate 1a of the outer box 1 to the floor of the house where the washing machine is installed, and generation of noise due to this can be avoided.

In addition, the restraining member 40 has a function of attenuating it by being deformed in the shearing direction by the lateral vibration of the water tank 6, thereby more effectively reducing the lateral vibration of the water tank 6. Can be suppressed.
Further, the suppressing member 40 has a function of attenuating the lateral vibration of the water tank 6 by being made of a viscoelastic body, and the lateral vibration of the water tank 6 is further reduced by the damping function by the viscoelastic force. It can be effectively suppressed.

  In addition, the restraining member 40 is located close to the suspension 7, and the resistance force of the restraining member 40 when the water tank 6 vibrates in the lateral direction is more greatly affected. This also causes the lateral vibration of the water tank 6. Can be more effectively suppressed.

  The water tank 6 has a motor 8 and a bearing housing 9 which are heavy objects on the back, that is, the rear side. Therefore, the uneven distribution of the laundry in the drum 10 is caused by the uneven distribution of the laundry in the drum 10. Therefore, the lateral vibration of the water tub 6 caused by the uneven distribution of the laundry at this time is not so great. In contrast, when the laundry is unevenly distributed on the front side in the drum 10, the influence of the uneven distribution of the laundry in the drum 10 is large, and the lateral direction of the water tub 6 generated due to the uneven distribution of the laundry at this time is large. The vibration is great.

On the other hand, the restraining member 40 is located on the front side of the suspension 7, and the lateral vibration of the water tub 6 is greatly generated. When the uneven distribution of the laundry is on the front side in the drum 10, Since it acts as what suppresses the vibration of a direction more effectively, the vibration of the horizontal direction of the water tank 6 can be suppressed still more effectively.
However, the restraining member 40 may be provided, for example, on the left and right lateral sides other than the front side of the suspension 7, and may be further provided on the rear side. In short, it may be provided anywhere on the periphery of the suspension 7.

  4 to 9 show the second to seventh embodiments. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. Only the part is described.

[Second Embodiment]
In the second embodiment shown in FIG. 4, a suppression member 51 that replaces the suppression member 40 is used. The restraining member 51 is made of a part of the elastic body (particularly a viscoelastic body, especially a relatively flexible rubber material having a hardness of about 30 degrees). A long cylindrical support body 52, a short columnar main body 53 made of the above-mentioned elastic body fixed by embedding a lower part in the upper part of the support body 52, and a lower part embedded in and fixed to the upper part of the main body 53 A rod-shaped attachment member 54 is provided.

  With this configuration, the screw portion 54b above the flange portion 54a formed in the intermediate portion of the attachment member 54 is inserted into the attachment plate 29 of the water tank 6, and the flange portion 54a is brought into contact with the lower surface of the attachment plate 29. The upper end portion of the restraining member 51 is attached to the mounting plate 29 by screwing and tightening the nut 55 to the protruding portion of the screw portion 54b.

  On the other hand, a flange portion 52a formed at the lower end of the support 52 is brought into contact with the upper surface of the mounting plate 35 of the bottom plate 1a, and a plurality of screw rods 56 are inserted from the flange portion 52a into the mounting plate 35. The lower end portion of the restraining member 51 is attached to the attachment plate 35 by screwing and tightening the nuts 57 to the upper and lower protrusions.

Even if the restraining member 51 partially uses the elastic body in this way, the main body 53 made of the elastic body acts on the shaft center of the suspension 7 of the water tank 6 by the elastic force against the lateral vibration of the water tank 6. By generating a resistance force due to deformation in the shearing direction due to the surrounding torsion, the vibration in the lateral direction of the water tank 6 is suppressed, so that the same effect as that of the first embodiment can be obtained.
In this case as well, the restraining member 51 is movable by the main body 53 extending and contracting in the vertical direction, and the main body 53 is made of an elastic body, particularly a viscoelastic body. It has the function of dampening it against lateral vibration.

[Third Embodiment]
In the third embodiment shown in FIG. 5, a suppressing member 61 that replaces the suppressing member 40 is used. The restraining member 61 is also a part of the elastic body, and is mounted and fixed to the support body 62 similar to the support body 52 of the restraining member 51 in the second embodiment and the upper inner periphery of the support body 62. An annular main body 63 made of an elastic body, an annular bearing 64 mounted on and fixed to the inner periphery of the main body 63, and a long rod-shaped mounting member 65 inserted through the bearing 64 so as to be slidable in the axial direction. It consists of

  With this configuration, like the attachment member 54 of the restraining member 51 in the second embodiment, the screw portion 65b above the flange portion 65a formed in the intermediate portion of the attachment member 65 is attached to the attachment plate 29 of the water tank 6. The upper end portion of the restraining member 51 is attached to the attachment plate 29 by inserting the flange portion 65a into contact with the lower surface of the attachment plate 29 and screwing the nut 66 into the protruding portion of the screw portion 65b. .

  On the other hand, like the support body 52 of the restraining member 51 in the second embodiment, the flange portion 62a formed at the lower end portion of the support body 62 is brought into contact with the upper surface of the mounting plate 35 of the bottom plate 1a, thereby the flange portion. The lower end portion of the restraining member 51 is attached to the mounting plate 35 by inserting a plurality of screw rods 67 from 62a into the mounting plate 35, and screwing and tightening nuts 68 to the respective upper and lower protrusions.

  Even with the restraining member 61 that partially uses the elastic body in this way, the main body 63 made of the elastic body is capable of acting on the shaft center of the suspension 7 of the water tank 6 with respect to the lateral vibration of the water tank 6. By generating a resistance force due to deformation in the shearing direction due to the surrounding torsion, the vibration in the lateral direction of the water tank 6 is suppressed, so that the same effect as that of the first embodiment can be obtained.

  In this case, the restraining member 61 is movable in the vertical direction by the mounting member 65 sliding almost freely on the inner periphery of the bearing 64 in the axial direction, and the main body 63 is an elastic body. In particular, since it is made of a viscoelastic body, it has a function of attenuating it against the lateral vibration of the water tank 6.

[Fourth Embodiment]
In the fourth embodiment shown in FIG. 6, a suppressing member 71 is used instead of the suppressing member 40. The restraining member 71 uses vibration-proof cushions 72, 73, 74, 75 instead of the elastic body, and has the same cylindrical shape as the support body 52 of the restraining member 51 in the second embodiment. A shorter support 76, an annular bearing 77 attached and fixed to the upper inner periphery of the support 76, a rod-shaped mounting member 78 inserted through the bearing 77 so as to be axially slidable, and a lower end portion of the support 76 The vibration-proof cushions 72 to 72 are composed of a rod-shaped attachment member 79 attached to the body and an elastic body similar to the elastic body (particularly a viscoelastic body, and a relatively soft rubber material having a hardness of about 30 degrees among others). 75.

  With this configuration, a portion 78b above the flange portion 78a formed in the intermediate portion of the attachment member 78 is inserted into the attachment plate 29 of the water tank 6 through the upper and lower vibration-proof cushions 72 and 73, and the protruding end portion thereof The upper end of the restraining member 71 is attached to the attachment plate 29 by screwing and tightening the nut 81 through the washer 80.

  On the other hand, the attachment member 79 is inserted into the attachment plate 35 of the bottom plate 1a through the upper and lower vibration-proof cushions 74, 75, and the nut 83 is screwed into the projecting end portion of the attachment plate through the washer 82 and tightened. The lower end portion of the member 71 is attached to the attachment plate 35.

  Even if the restraining member 71 is attached via the vibration-proof cushions 72 to 75 as described above, the vibration-proof cushions 72 to 75 made of an elastic body are subjected to the elastic force against the lateral vibration of the water tank 6. Since the deformation in the shear direction due to the twist around the axis of the suspension 7 of the suspension 6 becomes a resistance force, the vibration in the lateral direction of the water tank 6 is suppressed, so that the same effect as the first embodiment can be obtained. .

  In this case as well, the restraining member 71 is movable in the vertical direction by the mounting member 78 sliding almost freely in the axial direction on the inner periphery of the bearing 77, and the anti-vibration cushions 72˜ 75 is made of an elastic body, particularly a viscoelastic body, and has a function of attenuating it against the vibration in the lateral direction of the water tank 6.

[Fifth Embodiment]
In the fifth embodiment shown in FIG. 7, a suppressing member 91 that replaces the suppressing member 40 is used. The restraining member 91 is provided on the outer periphery (between the support 76) of the bearing 92 formed thinner than the bearing 77 of the restraining member 71 in the fourth embodiment. The suppression member 71 is the same as the suppression member 71 in the fourth embodiment except that an auxiliary member 93 similar to the main body 63 of the member 61 is interposed and fixed. Therefore, the suppression member 71 in the fourth embodiment is the same as the suppression member 71 in the fourth embodiment. The same parts as those shown in FIG.

  In this case, the vibration isolating cushions 72 to 75 made of an elastic body resist the vibration in the shear direction due to the torsion around the axis of the suspension 7 of the water tank 6 due to the elastic force against the lateral vibration of the water tank 6. In addition, the auxiliary member 93 made of an elastic body also becomes a resistance force due to the deformation in the shearing direction due to the torsion around the axis of the suspension 7 of the water tank 6 by the elastic force, thereby suppressing the lateral vibration of the water tank 6. Therefore, the operational effects of the third embodiment and the fourth embodiment or more can be obtained.

  In this case as well, the restraining member 71 is movable in the vertical direction by the mounting member 78 sliding almost freely on the inner periphery of the bearing 92 in the axial direction, and the anti-vibration cushions 72˜ 75 and the auxiliary member 93 are made of an elastic body, in particular, a viscoelastic body, and have a function of attenuating it against the vibration in the lateral direction of the water tank 6.

[Sixth Embodiment]
In the sixth embodiment shown in FIG. 8, a suppressing member 101 that replaces the suppressing member 40 is used. The restraining member 101 has a main body 63 in the third embodiment between the support body 62 of the restraining member 61 in the third embodiment and the mounting member 65 of the restraining member 61 in the third embodiment. It is the same as the suppressing member 61 in the third embodiment except that the viscous fluid 103 sealed in the container 102 is interposed instead of the bearing 64 and the bearing 64, and therefore in the third embodiment. The same parts as those of the suppressing member 61 are indicated by the same reference numerals.

  In this case, the container 102 is made of, for example, EPDM (ethylene-propylene-diene rubber), NBR (nitrile-butadiene rubber), butyl rubber, or the like, and can be deformed, particularly deformable in the lateral direction. Is made of silicone oil, for example. The container 102 and the viscous fluid 103 are provided with dimensions over a relatively long range from the lower back of the support body 62 to the upper outside.

  In this configuration, the viscous fluid 103 repeatedly compresses and expands against the lateral vibration of the water tank 6 while deforming the container 102, and resistance to torsion around the axis of the suspension 7 of the water tank 6 due to its elastic force. Since it becomes force and suppresses the vibration of the water tank 6 in the lateral direction, the same effect as the first embodiment can be obtained.

  In this case, the restraining member 101 is movable in the vertical direction by repeating the compression and expansion of the viscous fluid 103 while the mounting member 65 also deforms the container 102 in the axial direction, and the viscous member 103 is viscous. Due to the viscosity of the fluid 103, it has a function of attenuating the vibration of the water tank 6 in the lateral direction.

[Seventh Embodiment]
In the seventh embodiment shown in FIG. 9, a suppression member 111 that replaces the suppression member 40 is used. The restraining member 111 is the same as the restraining member 61 in the third embodiment, except that the viscous fluid 113 enclosed in the container 112 is interposed instead of the main body 63 of the restraining member 61 in the third embodiment. Accordingly, the same parts as those of the restraining member 61 in the third embodiment are denoted by the same reference numerals.

  In this case, the container 112 is made of the same material as the container 102 in the sixth embodiment, and the viscous fluid 113 is also made of the same material as the viscous fluid 103 in the sixth embodiment. However, the container 112 is shorter than the container 102 in the sixth embodiment, and the viscous fluid 113 is a smaller amount than the viscous fluid 103 in the sixth embodiment. A range is provided.

  Even in this case, the viscous fluid 113 repeatedly compresses and expands against the lateral vibration of the water tank 6 while deforming the container 112, and resistance to torsion around the axis of the suspension 7 of the water tank 6 by the elastic force thereof. Since it becomes force and suppresses the vibration of the water tank 6 in the lateral direction, the same effect as the first embodiment can be obtained.

  In this case, the restraining member 111 is movable in the vertical direction as the mounting member 65 slides almost freely in the axial direction on the inner periphery of the bearing 64, and the viscosity of the viscous fluid 113 It has a function of attenuating the vibration of the water tank 6 in the lateral direction.

In addition, the washing machine as a whole is not limited to the drum type, and can be similarly applied to a vertical washing machine having a tub in a vertical axis, and does not have a drying function. good.
Furthermore, although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 1 is an outer box, 1a is a bottom plate, 6 is a water tank, 7 is a suspension, 8 is a motor, 10 is a drum (rotary tank), 40 is a restraining member (viscoelastic body), 51 is a restraining member, and 53 is the main body. (Viscoelastic body), 61 is a restraining member, 63 is a main body (viscoelastic body), 71 is a restraining member, 72 to 75 are anti-vibration cushions (viscoelastic body), 91 is a restraining member, 93 is an auxiliary member (viscoelastic) Body), 101 is a suppressing member, 103 is a viscous fluid, 111 is a suppressing member, and 113 is a viscous fluid.

Claims (4)

An outer box,
A water tank located inside the outer box,
A rotating tub located inside the aquarium and driven to rotate;
In a washing machine comprising a suspension for buffering and supporting the water tank mainly in the vertical direction on the bottom plate of the outer box,
On the bottom plate of the outer box , arranged around the suspension , movable in the vertical direction, and provided with a suppressing member that suppresses lateral vibration of the water tank ,
The upper end of the restraining member is attached to a mounting plate provided on the outer peripheral side surface of the water tank, in common with the upper end of the suspension,
The lower end portion of the restraining member is attached to another attachment plate provided on the bottom plate in common with the lower end portion of the suspension . The washing machine according to claim 1, wherein the suppressing member has a function of attenuating lateral vibration of the water tank in addition to suppressing horizontal vibration of the water tank.   The washing machine according to claim 2, wherein the suppressing member has a function of attenuating a lateral vibration of the water tank by a viscoelastic body.   The washing machine according to claim 2, wherein the suppressing member has a function of attenuating a lateral vibration of the water tank by a viscous fluid.

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