KR20220050752A - Clothes treating apparatus, reducing vibration apparatus - Google Patents

Abstract

The present invention provides a configuration which can reduce sound generated by rippled oil, regarding a clothing treatment apparatus including a vibration control device utilizing viscous resistance caused when oil sealed into a cylinder passes an orifice hole provided in a piston. In the clothing treatment apparatus according to an embodiment of the present invention, the vibration control device which damps vibration of a clothing processing tank includes: an elastic vibration control section; and a damping mechanism section. The damping mechanism section comprises: a cylinder having a first end on the elastic vibration control section side and a second end on the opposite side of the elastic vibration control section and having oil sealed therein; a shaft supported by the first end of the cylinder and installed to be able to reciprocate in the cylinder; a piston fixed to the shaft in the cylinder and having at least one orifice hole; and a silencing section installed inside the second end of the cylinder and reducing sound generated by oil rippled along with reciprocation of the piston together with the shaft in the cylinder.

Description

CLOTHES TREATING APPARATUS, REDUCING VIBRATION APPARATUS

An embodiment of the present invention relates to a clothes processing apparatus for performing a predetermined treatment on clothes, and a dust isolator provided in the clothes processing device.

Conventionally, in a washing machine, which is an example of a clothes processing device for performing a predetermined treatment on clothes, development of a vibration damper capable of effectively damping the vibration of a clothes treatment tank accommodating clothes is in progress, particularly in a dehydration operation of dehydrating clothes. there is. Here, in this type of vibration damper, a large damping force is required because the laundry treatment tank shakes greatly when the spin-drying operation with a low rotation speed of the rotary tub is started. In normal operation, a large damping force is not required because the amplitude of the laundry treatment tank becomes small, and a small damping force sufficient to suppress vibrations propagating to the floor is required.

As such, in particular, for the vibration damper provided in the washing machine, the magnitude of the damping force required at the start of the spin-drying operation and the normal time of the spin-drying operation are different, and the damping force is switched from “large” to “small” as the spin-drying operation progresses. it is preferable In view of such circumstances, for example, as disclosed in Patent Document 1 and Patent Document 2, a device that utilizes viscous resistance when oil enclosed in a cylinder passes through an orifice hole provided in a piston, a so-called oil damper. A so-called anti-vibration device is being developed.

Japanese Patent Laid-Open No. 61-18510 Japanese Patent Laid-Open No. 63-47935

However, in the conventional oil damper described above, the oil is stirred as the piston reciprocates within the cylinder, thereby causing the oil to wave. Then, the waved oil collides with the inner surface of the cylinder, thereby generating a sound. In particular, in a drum-type washing machine, which is an example of a laundry treatment apparatus, the specifications are significantly changed from that of the prior art, and the vibration frequency generated at the start of the spin-drying operation is low, but the stroke of the vibration isolator is large, while the normality of the spin-drying operation is In the city, the stroke of the vibration isolator is small, but the frequency of generated vibration is increasing. Therefore, when the dewatering operation is started, the oil is easily rippled due to the large expansion and contraction of the vibration isolator, and the oil is easily rippled by the small expansion and contraction of the vibration isolator even when the dewatering operation is normal and vibrating violently. That is, the oil tends to ripple even when the dewatering operation is started or during normal operation, and furthermore, it is easy to generate a sound according to the rippling of the oil.

Therefore, the present embodiment relates to a laundry treatment apparatus having a vibration isolator using viscous resistance when oil sealed in a cylinder passes through an orifice hole provided in a piston, so as to reduce the sound of waving oil. configuration is provided. In addition, with respect to the vibration isolator provided in the laundry treatment apparatus, a configuration capable of reducing the sound generated by rippling oil is provided.

The clothes processing apparatus according to the present embodiment attenuates vibrations of an outer box constituting an outer periphery, a clothes treatment tank installed inside the outer box, a rotary tank rotatably installed inside the clothes treatment tank, and the clothes treatment tank A laundry treatment apparatus comprising: an elastic vibration isolator constituted by an elastic member; and a damping mechanism portion arranged in series with the elastic vibration isolator portion, wherein the damping mechanism portion is on the side of the elastic vibration isolator A cylinder having a first end and a second end on the opposite side to the elastic vibration isolator, and an oil filled cylinder therein, supported by the first end of the cylinder, and capable of reciprocating within the cylinder a shaft installed in the cylinder, a piston fixed to the shaft in the interior of the cylinder and having at least one orifice hole; and a silencer for reducing the sound generated by the oil undulating as it reciprocates.

In addition, the clothes processing apparatus according to the present embodiment includes an outer box constituting an outer periphery, a clothes treatment tank installed inside the outer box, a rotary tank rotatably installed inside the clothes treatment tank, and vibration of the clothes treatment tank A laundry treatment apparatus comprising a vibration isolator for damping A cylinder having a first end on the negative side and a second end on a side opposite to the elastic vibration isolator, and an oil filled cylinder therein, supported by the first end of the cylinder, and reciprocating in the cylinder a shaft operably installed; a piston fixed to the shaft inside the cylinder and having at least one orifice hole; A cushioning body for reducing the sound generated by the oil waving as it reciprocates in the cylinder together with the shaft is provided.

In addition, the clothes processing apparatus according to the present embodiment includes an outer box constituting an outer periphery, a clothes treatment tank installed inside the outer box, a rotary tank rotatably installed inside the clothes treatment tank, and vibration of the clothes treatment tank A laundry treatment apparatus comprising a vibration isolator for damping a vibration, wherein the vibration isolator includes an elastic vibration isolator constituted by an elastic member, and a damping mechanism portion disposed in series with the elastic vibration isolator, wherein the damping mechanism portion includes the elastic vibration isolator A cylinder having a first end on the negative side and a second end on the opposite side to the elastic vibration isolator, and an oil filled cylinder therein, supported by the first end of the cylinder, and reciprocally moved in the cylinder A shaft operably installed, a piston fixed to the shaft in the interior of the cylinder and having at least one orifice hole, and an intermediate portion of the interior of the cylinder that is a portion between the first end and the second end. and a cushioning body which is installed and reduces the sound generated by the oil waving as the piston reciprocates in the cylinder together with the shaft.

Moreover, the dust isolator which concerns on this embodiment is equipped with the clothes processing apparatus which concerns on this embodiment.

1 is a longitudinal front view schematically showing a configuration example of a washing machine according to a first embodiment;
Fig. 2 is a block diagram schematically showing a configuration example of a control system for a washing machine according to the first embodiment;
Fig. 3 is a longitudinal side view schematically showing a configuration example of the vibration-proof damper according to the first embodiment;
4 is a plan view schematically showing a configuration example of a piston according to the first embodiment;
5 is a diagram showing an example of a relationship between a stroke and a damping force of the vibration damper according to the first embodiment;
Fig. 6 is a longitudinal side view schematically showing a configuration example of a vibration-proof damper according to the second embodiment;
7 is a longitudinal side view schematically showing a configuration example of a vibration-proof damper according to the third embodiment;
Fig. 8 is a longitudinal side view schematically showing a configuration example of a vibration-proof damper according to the fourth embodiment;
Fig. 9 is a plan view schematically showing a configuration example of a shock absorber according to the fourth embodiment;
Fig. 10 is a longitudinal side view schematically showing a configuration example of a vibration-proof damper according to the fifth embodiment;
11 is a plan view schematically showing a configuration example of a shock absorber according to the sixth embodiment;
12 is a longitudinal side view schematically showing a configuration example of a vibration-proof damper according to the seventh embodiment;
Fig. 13 is a longitudinal side view schematically showing a configuration example of a vibration-proof damper according to the eighth embodiment;
Fig. 14 is a longitudinal side view schematically showing a configuration example of the vibration damper according to the ninth embodiment.

EMBODIMENT OF THE INVENTION Hereinafter, several embodiment regarding a clothes processing apparatus and a vibration isolator is demonstrated, referring drawings. In addition, in some embodiment, the same code|symbol is attached|subjected to substantially the same element, and the description is abbreviate|omitted.

(First embodiment)

The washing machine 1 illustrated in FIG. 1 is an example of a clothes treatment apparatus capable of performing a predetermined treatment on clothes, in this case at least a washing process for washing clothes, a rinsing process for rinsing clothes, and a dehydration process for dehydrating clothes. In addition, the washing machine 1 is a so-called drum type washing machine in which the rotational central axis of the rotating tub extends in a horizontal direction or a direction inclined with respect to the horizontal direction.

The washing machine 1 is provided with the bottomed cylindrical water tank 3 inside the rectangular box-shaped outer box 2 which comprises the outer periphery. The water tank 3 is an example of a clothes treatment tank, and it is possible to collect water inside. Moreover, the washing machine 1 is provided with the drum 4 of the cylindrical shape with a bottom. The drum 4 is an example of a rotating tank, and is rotatably installed inside the water tank 3 .

A number of small holes (not shown) are provided in the peripheral wall of the drum (4), and a baffle (not shown) for sweeping up clothes is provided on the inner peripheral surface of the drum (4). In addition, the front openings of the water tank 3 and the drum 4 can be opened and closed by a door (not shown) provided on the front surface of the outer box 2 . By opening this door, the user can accommodate clothes in the drum 4 through the front openings of the water tank 3 and the drum 4 or take out clothes from the drum 4 .

Inside the outer box 2 , the water tank 3 is elastically supported by a plurality of, in this case, two anti-vibration dampers 100 . The anti-vibration damper 100 is an example of an anti-vibration device, and for example, dampens vibrations generated in the water tank 3 during the operation of the washing machine 1 . The anti-vibration damper 100 has one end, in this case, the upper end being firmly fixed to the fixing part 3a provided in the lower part of the water tank 3 by, for example, a bolt or the like. Further, the vibration-proof damper 100 is firmly fixed to the other end thereof, in this case the lower end, to the fixing portion 2a provided at the bottom of the outer box 2 by, for example, a bolt or the like.

Next, a configuration example of the control system of the washing machine 1 will be described. The control device 10 illustrated in FIG. 2 is constituted mainly of, for example, a microcomputer, and controls the overall operation of the washing machine 1 according to a control program and various setting contents. The control device 10 is connected to various driving system components such as a drum motor 11 , a water supply valve 12 , a drain valve 13 , and the like.

The drum motor 11 is installed at the rear of the water tank 3, and as illustrated in FIG. 1 , the drum 4 can be rotated in a forward rotation direction R1 and a reverse rotation direction R2. The control device 10 alternates the drum 4 in the forward rotation direction R1 and the reverse rotation direction R2 by the drum motor 11 in a washing operation for washing clothes and a rinsing operation for rinsing clothes, for example. rotate while switching to The washing operation and the rinsing operation are examples of the normal rotation operation, and the control device 10 rotates the drum 4 at a predetermined normal speed.

In addition, the control device 10 continuously rotates the drum 4 in one direction, in this case in the forward rotation direction R1 , by the drum motor 11 in a dewatering operation for dewatering clothes, for example. The spin-drying operation is an example of a high-speed rotation operation, and the control device 10 rotates the drum 4 at a higher speed than the normal speed.

The water supply valve 12 is provided in the water supply path|route (not shown) extended to the water tank 3 from water supply sources, such as a water supply, for example. The control device 10 is capable of supplying water into the water tank 3 by opening the water supply valve 12 . The drain valve 13 is provided in a drain path (not shown) extending from the bottom of the water tank 3 to the outside of the machine. By opening the drain valve 13 , the control device 10 can discharge the water accumulated in the water tank 3 to the outside.

Next, a configuration example of the vibration-proof damper 100 will be described in detail. As illustrated in FIG. 3 , the vibration damper 100 includes an elastic vibration isolator 110 and a damping mechanism 120 . The elastic vibration isolator 110 is mainly composed of a coil spring 111 which is an example of an elastic member. The coil spring 111 is provided so as to be stretchable between the spring accommodating portions 112 and 113 . The damping mechanism part 120 is disposed in series with respect to the elastic vibration isolator 110 . In this case, the anti-vibration damper 100 includes the fixing part 3a of the water tank 3 and the fixing part of the bottom of the outer box 2 with the elastic vibration-proof part 110 on the lower side and the damping mechanism part 120 on the upper side. It is attached between 2a).

The damping mechanism unit 120 includes a cylinder 121 , a shaft 122 , a piston 123 , and the like. The cylinder 121 is installed in a cylindrical shape in this case, and oil OL and air AR are sealed therein. In addition, the gas enclosed in the cylinder 121 is not limited to air AR, For example, gas, such as nitrogen, may be sufficient.

One end of the cylinder 121 , in this case, the upper end is an example of the second end, which is an end opposite to the elastic vibration isolator 110 . The upper end of the cylinder 121 is closed. In addition, a fixed part 124 is provided at the upper end of the cylinder 121 . The fixed part 124 is firmly fixed to the fixing part 3a of the water tank 3 with, for example, a bolt or the like.

In addition, the other end of the cylinder 121 , in this case, the lower end is an example of the first end, which is the end of the elastic vibration isolator 110 side. The lower end of the cylinder 121 is closed by the bearing portion 125 . The bearing part 125 is configured in a circular circular shape as a whole, and has a bearing hole 125a penetrating the bearing part 125 in the axial direction at its center.

The shaft 122 is supported at the lower end of the cylinder 121 . More specifically, the shaft 122 extends linearly along the longitudinal direction of the vibration damper 100 , and is inserted through the bearing hole 125a of the bearing part 125 . Thereby, the shaft 122 is provided so that a reciprocating movement is possible in the arrow A1, A2 directions in the inside of the cylinder 121. Here, the arrow A1 direction is an example of an extension direction in which the coil spring 111 of the elastic vibration isolator 110 extends. On the other hand, the arrow A2 direction is an example of the compression direction in which the coil spring 111 of the elastic vibration isolator 110 is compressed.

One end of the shaft 122, in this case, the upper end, extends inside the cylinder 121, and the piston 123 is fixed to the front end thereof. Thereby, the piston 123 reciprocates in the direction of arrows A1 and A2 in the cylinder 121 together with the shaft 122. In addition, the other end side of the shaft 122, in this case, the lower end side, is exposed to the outside of the cylinder 121, and the front end is firmly fixed to the fixing part 2a of the bottom of the outer box 2 by, for example, a bolt or the like. do. In addition, the spring accommodating part 113 is fixed to the lower end side of the shaft 122 . Then, the above-described coil spring 111 is telescopically fitted between the spring accommodating part 113 and the spring accommodating part 112 fixed to the lower end of the cylinder 121 .

The piston 123 is configured in a substantially disk shape, and its outer circumferential surface is sized to be in sliding contact with the inner circumferential surface of the cylinder 121 . Further, the piston 123 has a plurality of orifice holes 126 penetrating the piston 123 in the axial direction.

As illustrated in FIG. 4 , the piston 123 has a plurality, in this case four orifice holes 126 . The plurality of orifice holes 126 are arranged at equal intervals from each other in the circumferential direction of the piston 123 . In addition, the position, size, number, opening shape, etc. of the orifice hole 126 provided in the piston 123 can be changed suitably and it can implement. In addition, the orifice hole 126 may be formed in the tapered shape whose inner peripheral surface is inclined with respect to the reciprocating movement directions A1, A2 of the shaft 122. As shown in FIG.

According to the vibration damper 100 configured as described above, in the elastic vibration isolator 110 , a damping force is generated by the elasticity of the coil spring 111 . In addition, in the damping mechanism unit 120 , as the piston 123 reciprocates within the cylinder 121 , a damping force is generated by frictional resistance between the outer peripheral surface of the piston 123 and the inner peripheral surface of the cylinder 121 . In addition, in the damping mechanism part 120 , as the piston 123 reciprocates within the cylinder 121 , the oil OL in the cylinder 121 passes through the orifice hole 126 of the piston 123 . Then, a damping force is generated by the viscous resistance when the oil OL passes through the orifice hole 126 .

Here, the definition of "damping force" in this embodiment is demonstrated. That is, as illustrated by the reference symbol S in FIG. 5 , the vibration-proof damper 100 expands and contracts according to the vibration of the water tank 3 , and the stroke S, ie, the amount of expansion and contraction, fluctuates. In addition, as exemplified by the reference symbol F in FIG. 5 , the magnitude of the damping force F generated by the vibration damper 100 varies according to the change in the stroke S thereof. In addition, the "damping force" in this embodiment is the damping force Fa exerted by the vibration damper 100 when the stroke S becomes the maximum, and the vibration damper 100 exerts when the stroke S becomes the minimum. It is defined as the difference (D) of the damping force (Fb). According to the vibration-proof damper 100 of the present embodiment, air AR is enclosed in the cylinder 121 . In this configuration, aeration described later, that is, when oil OL and air AR are mixed, it is easy to generate bubbles in oil OL. can

However, in this type of vibration damper 100 , a so-called oil damper, when the reciprocating movement of the piston 123 in the cylinder 121 is repeated, the oil OL injected into the cylinder 121 and It is known that a phenomenon called aeration generated by mixing the gas AR or cavitation in which the gas AR included in the oil OL expands due to a drop in pressure to form bubbles occurs. The viscous resistance when the oil OL passes through the inside of the orifice hole 126 is lowered by the bubbles generated by the aeration or cavitation, and the damping force is lowered. Therefore, an antifoaming agent is added to the inside of the cylinder 121 to eliminate such bubbles.

According to the washing machine 1 configured as described above, the anti-vibration damper 100 using the viscous resistance when the oil OL sealed in the cylinder 121 passes through the orifice hole 126 installed in the piston 123 is provided. By using the damping characteristics exhibited by the damping mechanism unit 120 constituting a part of the vibration damper 100, it is possible to effectively vary the damping force from “large” to “small” according to the progress of the dewatering operation. .

In addition, as illustrated in FIG. 3 , in the anti-vibration damper 100 configured as described above, as the piston 123 reciprocates in the cylinder 121 together with the shaft 122, the oil OL is stirred, Thereby, the oil OL ripples. Then, the waved oil OL collides with the inner surface of the cylinder 121, particularly the inner surface of the upper end of the cylinder 121, whereby, for example, when the liquid collides with the solid, a sound is generated. .

Therefore, the vibration damper 100 is configured to further include a silencer 130 in order to reduce such sound.

The silencer 130 is installed inside the upper end of the cylinder 121 . In this case, the silencer 130 is defined as a noise function area having a predetermined size installed inside the upper end of the cylinder 121 . The vibration damper 100 includes a buffer 131 inside the silencer 130 . In this case, the buffer body 131 is formed in a substantially cylindrical shape. The buffer body 131 is composed of an elastic body having a permeability through which oil (OL) as liquid and air (AR) as gas can permeate, for example, a sponge. As for the sponge constituting the buffer body 131, it is preferable that a plurality of bubbles are continuous, rather than that a plurality of bubbles are independent. In addition, as for a sponge, it is not necessary for all the foam|bubble to be continuous, and it is sufficient if the majority of foam|bubble is continuous. That is, as the number of continuous bubbles increases, the oil OL and the air AR easily permeate, so it is suitable as a sponge constituting the cushioning body 131 .

In addition, in the vibration damper 100 , the entire interior of the silencer 130 is filled with a buffer 131 . In addition, the side surface (131a) of the buffer body 131 is in contact with the inner peripheral surface of the upper end of the cylinder (121). Further, in the cushioning body 131 , a surface 131b of the upper end of the cylinder 121 is in contact with the inner surface of the upper end of the cylinder 121 .

In addition, the movement of the buffer body 131 toward the lower end of the cylinder 121 is restricted by the convex portion 140 provided on the inner surface of the cylinder 121 . Such a convex portion 140 may be formed by deforming the side surface of the cylinder 121 by caulking, for example. In addition, the convex part 140 may be provided over the whole circumference of the side surface of the cylinder 121, and may be provided intermittently in the circumferential direction of the cylinder 121. In addition, the convex part 140 may be provided integrally with the cylinder 121, and may be provided by the component separate from the cylinder 121.

In addition, the vibration damper 100 may have a configuration in which a part of the silencer 130 is filled with the buffer 131 instead of the entire inside. Therefore, the side surface 131a of the cushioning body 131 may be spaced apart from the inner peripheral surface of the cylinder 121 . In addition, in the buffer body 131 , the upper end side 131b of the cylinder 121 may be spaced apart from the inner surface of the cylinder 121 .

According to the washing machine 1 exemplified above, even if the oil OL ripples as the piston 123 reciprocates in the cylinder 121 together with the shaft 122, the rippled oil OL is silenced. It can be absorbed by the buffer body 131 in the part 130 . Accordingly, as the piston 123 reciprocates in the cylinder 121 together with the shaft 122 , the sound generated by the undulating oil OL can be effectively reduced by the silencer 130 .

Further, according to the washing machine 1 , the vibration-proof damper 100 is provided with a buffer body 131 made of, for example, a sponge or the like, inside the silencer 130 . According to this structure, the rippled oil OL can be efficiently absorbed by the buffer body 131, and the sound generated by the rippled oil OL can be further effectively reduced.

In addition, according to the washing machine 1 , in the vibration damper 100 , the entire interior of the silencer 130 is filled with the buffer body 131 . According to this configuration, the noise effect can be exerted in the entire silencer 130 , and the sound generated by the waving oil OL can be further effectively reduced.

In addition, the vibration damper 100 may have a configuration including a single buffer 131 inside the silencer 130 , or may have a configuration including a plurality of buffers 131 . When a plurality of buffers 131 are provided, a plurality of buffers 131 having the same bubble roughness or continuity degree of bubbles may be used, or a plurality of buffer bodies 131 having different bubble roughness or bubble continuity degree ) may be used. In addition, various materials can be applied to the buffer 131 as long as it has permeability through which liquids and gases, such as a filter made of, for example, a nonwoven fabric or the like are permeable. In addition, the elastic body which comprises the buffer body 131 can use what changed the elastic force suitably.

Also, according to the washing machine 1 , the cushioning body 131 is in contact with the inner surface of the upper end of the cylinder 121 . According to this configuration, it is possible to maintain the buffer body 131 in a stable state on the inner surface of the upper end of the cylinder 121 .

Further, according to the washing machine 1 , the cushioning body 131 is fixed to the inner surface of the upper end of the cylinder 121 by the convex portion 140 provided on the inner surface of the cylinder 121 . According to this configuration, the cushioning body 131 can be maintained in a more stable state on the inner surface of the upper end of the cylinder 121 .

Further, according to the washing machine 1 , the movement of the cushioning body 131 toward the lower end of the cylinder 121 is regulated by the convex portion 140 provided on the inner surface of the cylinder 121 . According to this configuration, the buffer body 131 can maintain a state located on the upper end side of the cylinder 121 , that is, in the silencer 130 , thereby preventing unnecessary movement of the buffer body 131 in the cylinder 121 . can be avoided In addition, the shock absorber 131 can be maintained at an appropriate position within the cylinder 121 , that is, within the silencer 130 , and it is possible to more reliably reduce the sound generated by the waving oil OL.

(Second embodiment)

The vibration-proof damper 200 illustrated in FIG. 6 has a configuration in which the convex part 140 is not provided on the inner surface of the cylinder 121 . In addition, the side surface 131a of the buffer body 131 is fixed to the inner circumferential surface of the cylinder 121 by, for example, an adhesive. In addition, as for the cushioning body 131, the surface 131b of the upper end side of the cylinder 121 is fixed to the inner surface of the cylinder 121 by adhesive etc., for example.

Even with this configuration, the shock absorber 131 can be maintained at an appropriate position within the cylinder 121, that is, in the silencer 130, and it is possible to more reliably reduce the sound generated by the waving oil OL. can do.

In addition, the side surface 131a of the buffer body 131 does not need to be fixed to the inner peripheral surface of the cylinder 121 . In addition, as for the cushioning body 131, the surface 131b of the upper end side of the cylinder 121 does not need to be fixed to the inner surface of the cylinder 121. As shown in FIG. That is, if at least the side surface 131a of the cushioning body 131 is in sliding contact with the inner circumferential surface of the cylinder 121 , for example, even if it is not fixed by the convex portion 140 or an adhesive, an appropriate position within the cylinder 121 . That is, it is possible to keep it within the silencer 130 .

(Third embodiment)

The anti-vibration damper 300 illustrated in FIG. 7 further includes a filter 301 inside the cylinder 121 . The filter 301 is composed of, for example, a nonwoven fabric. In this case, the filter 301 is provided on the lower end side of the cylinder 121 rather than the silencer 130 . That is, the silencer 130 is defined as a region on the upper end side of the cylinder 121 rather than the filter 301 . Accordingly, in the present embodiment, not all of the silencer 130 is partially filled with the cushioning body 131 .

According to the structural example illustrated above, even if foreign substances such as dust are contained in the oil OL or the air AR, the foreign substances can be captured by the filter 301 . Accordingly, it is possible to suppress foreign substances from entering the silencer 130 and further into the cushioning body 131 , thereby avoiding deterioration of the cushioning body 131 and further deterioration of the noise performance.

In addition, the filter 301 can also absorb the waved oil OL to some extent, so that the noise function of the vibration-proof damper 100 as a whole can be strengthened. That is, while exhibiting the noise function by the silencer 130 having the buffer body 131 , an auxiliary noise function can also be exhibited by the filter 301 , and the sound generated by the waved oil OL can be reduced more effectively.

(Fourth embodiment)

According to the vibration damper 400 illustrated in FIG. 8 , the tip of the shaft 122 inserted into the cylinder 121 is configured to protrude toward the upper end of the cylinder 121 rather than the piston 123 . That is, the piston 123 is configured to be installed in the middle portion of the shaft 122 . And, the vibration damper 100 is provided with the buffer body 431 made of resin, for example, in the part on the upper end side of the cylinder 121 rather than the piston 123 among the shaft 122 .

As illustrated in Fig. 9 , the buffer body 431 has a disk shape as a whole, and has a circular through hole 431a in the center portion. Moreover, the buffer body 431 is provided with the mesh-shaped part 431b through which oil (OL) and air (AR) can permeate around the through hole 431a.

As illustrated in FIG. 8 , the shock absorber 431 configured as described above is inserted through the through hole 431a through a portion protruding from the upper end side of the cylinder 121 rather than the piston 123 of the shaft 122 . It is fixed to the part in a state of being. In addition, a spacer 432 is attached to the shaft 122 to maintain a distance between the piston 123 and the buffer body 431 at a constant distance.

According to the configuration example exemplified above, even if the oil OL ripples as the piston 123 reciprocates in the cylinder 121 together with the shaft 122, the rippled oil OL is mixed with the buffer body ( 431) can be absorbed. Accordingly, as the piston 123 reciprocates in the cylinder 121 together with the shaft 122 , the sound generated by the undulating oil OL can be effectively reduced by the shock absorber 431 .

In addition, according to the vibration damper 400 , the shock absorber 431 also reciprocates together with the shaft 122 and the piston 123 which are the main components for stirring the oil OL. And, the buffer body 431 is configured to exist in the oil OL to be stirred. According to this configuration example, by the existence of the buffer body 431 in the oil OL, it is possible to make it difficult to initially wave the oil OL, and it is possible to suppress the generation of sound itself due to the waved oil OL. there is.

In addition, the buffer body 431 is made of, for example, resin, and was made to have a certain degree of rigidity. Therefore, even if the shock absorber 431 receives pressure from the oil OL as it reciprocates in the cylinder 121, its shape can be maintained, and the original noise function of the shock absorber 431 is sufficiently exhibited. can do it

(fifth embodiment)

According to the vibration damper 500 illustrated in FIG. 10 , the shock absorber 531 has the same configuration as the shock absorber 431 , and protrudes toward the upper end of the cylinder 121 rather than the piston 123 of the shaft 122 . It is provided to be movable by a predetermined distance (L) from the part. That is, an end portion 122a is provided at the tip end of the shaft 122, and the shock absorber 531 is attached in a state in which the end portion 122a is inserted through a through hole (not shown) in the center portion. there is. And the shock absorber 531 is attached movably along the axial direction of the shaft 122 from this end part 122a. In addition, a stopper is provided at the most distal end of the shaft 122 to prevent the shock absorber 531 from being pulled out from the end 122a.

According to the configuration example illustrated above, the buffer body 531 reciprocating in the cylinder 121 together with the shaft 122 and the piston 123 reciprocates in the same way as the shaft 122 and the piston 123 . Rather than moving, the shaft 122 and the piston 123 are slightly shifted and reciprocated. Thereby, the degree of freedom of movement of the buffer body 531 can be increased, and a state in which the buffer body 531 floats in the oil OL can be formed. And, by moving the buffer body 531 to float in the oil OL, it is possible to make the oil OL more difficult to wave.

(6th embodiment)

The shock absorber 631 illustrated in FIG. 11 has the same configuration as the shock absorbers 431 and 531 described above, but has a configuration in which the mesh-shaped portion 631b constituting the main body portion is supported by the frame 600 . . The frame 600 is an example of a support part, and is made of, for example, a material having a rigidity stronger than that of the buffer body 631 , such as resin or metal. In this case, the frame 600 includes a circular-circle-shaped outer frame part 600a along the outer periphery of the buffer body 631 , a circular-circle-shaped inner frame part 600b along the through hole 631a, and the outer periphery frame A plurality of linear connection frame portions 600c connecting between the portion 600a and the inner peripheral frame portion 600b are provided. In this case, four connection frame parts 600c are provided, and each extends from the inner peripheral frame part 600b along the radial direction of the buffer body 631 . In addition, the plurality of connection frame portions 600c are arranged at equal intervals to each other in the circumferential direction of the cushioning body 631 .

The frame 600 forms a so-called frame by these outer peripheral frame parts 600a, inner peripheral frame parts 600b, and connection frame parts 600c, and supports the entire buffer body 631 . In addition, the number of connection frame parts 600c can be changed suitably and it can implement. In addition, the space|interval of several connection frame part 600c can be implemented by changing suitably. In addition, the intervals between the plurality of connection frame parts 600c may be equal to each other, or may not be equal to each other.

According to the structural example illustrated above, by supporting the shock absorber 631 with the frame 600 , it is possible to further suppress a change in the shape of the shock absorber 631 , and the original noise caused by the shock absorber 631 . The function can be exhibited more fully. In addition, even in the configuration in which the buffer body 631 as described above is suspended in the oil OL, the shape of the buffer body 631 can be stably maintained without deforming, so the intrinsic noise caused by the buffer body 631 . The function can be exhibited more fully.

(Seventh embodiment)

The vibration-proof damper 700 illustrated in FIG. 12 is provided with a cushioning body 731 in an intermediate portion between the lower end and the upper end of the cylinder 121 . The peripheral end of the cushioning body 731 is fitted into the support 150 provided on the inner surface of the intermediate portion of the cylinder 121 . Thereby, the buffer body 731 is being fixed in the middle part of the cylinder 121. As shown in FIG. Further, the buffer body 731 may have low rigidity constituted by, for example, a sponge or the like, or may have a strong rigidity constituted by, for example, resin or the like.

According to the configuration example exemplified above, even if the oil OL ripples as the piston 123 reciprocates in the cylinder 121 together with the shaft 122, the rippled oil OL is mixed with the buffer body ( 731) can be absorbed. Accordingly, as the piston 123 reciprocates in the cylinder 121 together with the shaft 122 , the sound generated by the undulating oil OL can be effectively reduced by the shock absorber 731 .

In addition, according to the vibration damper 100 , the shock absorber 731 is provided in the middle part of the cylinder 121 . Therefore, even in a state in which the oil OL in the cylinder 121 is being stirred, the buffer body 731 can be immersed in the oil OL. That is, the buffer 731 may exist in the oil OL that is stirred according to the reciprocating movement of the shaft 122 and the piston 123 . Therefore, it is possible to make it difficult to ripple the oil OL in the first place, and it is possible to suppress the generation of sound itself due to the rippled oil OL.

(Eighth embodiment)

According to the vibration damper 800 illustrated in FIG. 13 , the buffer body 831 is spaced apart from the piston 123 in a state in which the piston 123 moves toward the uppermost end of the cylinder 121 in the reciprocating range. is installed on

According to this configuration, even in a state in which the piston 123 moves toward the uppermost end of the cylinder 121 in the reciprocating range, that is, in a state in which the oil OL is pushed toward the uppermost end of the cylinder 121, the wave The oil OL can be reliably absorbed by the buffer 831 . Accordingly, the sound generated by the waving oil OL can be effectively reduced by the cushioning body 831 .

(9th embodiment)

The vibration-proof damper 900 illustrated in FIG. 14 has a structure in which the buffer body 931 is not fixed in the middle part of the cylinder 121 . In addition, the movement of the shock absorber 931 toward the lower end of the cylinder 121 is restricted by the convex portion 940 provided on the inner surface of the cylinder 121 . Therefore, the buffer body 931 is movable along the reciprocating direction of the shaft 122 and the piston 123 from the upper end side of the cylinder 121 rather than the convex part 940.

According to the configuration example exemplified above, even if the oil OL ripples as the piston 123 reciprocates in the cylinder 121 together with the shaft 122, the rippled oil OL is mixed with the buffer body ( 931) can be absorbed. Accordingly, as the piston 123 reciprocates in the cylinder 121 together with the shaft 122 , the sound generated by the undulating oil OL can be effectively reduced by the silencer 130 .

In addition, when the oil OL enters the upper end side of the cylinder 121 rather than the convex portion 940 , the shock absorber 931 reciprocates between the shaft 122 and the piston 123 in the oil OL. You can move along the direction of movement. And, by moving the buffer body 931 in the oil OL in this way, it is possible to make it difficult to initially wave the oil OL, and it is possible to suppress the generation of sound itself due to the waved oil OL. In addition, even if the oil OL undulates, the shock absorber 931 can move along the reciprocating direction of the shaft 122 and the piston 123 while absorbing the force of the waved oil OL. Accordingly, it is possible to more effectively suppress the generation of a sound by the waving oil OL.

(Other embodiments)

In addition, this embodiment is not limited to the some embodiment mentioned above, Various changes and expansion can be implemented in the range which does not deviate from the summary. For example, it can be implemented combining the several embodiment mentioned above suitably.

In addition, the damping mechanism part 120 is good also as a structure which does not seal the air AR in the cylinder 121. Even in the configuration in which the air AR is not sealed in the cylinder 121 as described above, at least bubbles can be generated due to cavitation, so it is possible to increase the difference D in the damping force between the starting and normal times.

In addition, the number of the orifice holes 126 provided in one piston 123 should just be at least 1 or more. Further, the orifice hole 126 may have a tapered shape or may not have a tapered shape. In addition, when configuring the orifice hole 126 in a tapered shape, at least one or more orifice hole 126 may be tapered with respect to one piston 123 . In addition, when the opening area of the plurality of orifice holes 126 provided in one piston 123 is different, the opening area of each orifice hole 126 may be different, and at least one or more orifice hole 126 . ) may be different from the opening area of the other orifice hole 126 .

In addition, if this embodiment is a washing machine provided with a vibration isolator, it can be applied also to types of washing machines other than a so-called transverse drum type washing machine. Moreover, this embodiment is applicable also to the washing machine which has a drying function. In addition, this embodiment is applicable also to the washing machine which does not have a drying function. In addition, this embodiment can be applied to various clothes processing apparatuses, as long as it is an apparatus which performs any kind of process with respect to clothes, such as deodorizing, deodorizing, sterilization, and bleaching of clothes, for example.

As mentioned above, although several embodiment which concerns on this invention was described, these embodiment is presented as an example and is not intended to limit the scope of the invention. Such novel embodiment can be implemented in other various forms, and various abbreviation|omission, substitution, and change can be implemented in the range which does not deviate from the summary of invention. These embodiments and their modifications are included in the scope and gist of the invention, and also included in the scope of the invention described in the claims and their equivalents.

1: washing machine (clothing handling unit) 2: outer box
3: Water tank (clothing tank) 4: Drum (rotating tank)
100, 200, 300, 400, 500, 700, 800, 900: Anti-vibration damper (vibration isolator)
110: elastic anti-vibration part 111: coil spring (elastic member)
120: damping mechanism 121: cylinder
122: shaft 123: piston
126: orifice hole 130: silencer
131, 431, 531, 631, 731, 831, 931: buffer
140, 940: convex portions 431b, 631b: mesh-shaped portions
600: frame (support)

Claims (14)

the outer box constituting the perimeter;
a clothing treatment tank installed inside the outer box;
a rotating tub rotatably installed inside the clothes treatment tub; and
Anti-vibration device for damping vibration of the laundry treatment tank
A clothes processing apparatus comprising:
The anti-vibration device is
An elastic vibration isolator constituted by an elastic member, and
Damping mechanism disposed in series with the elastic vibration isolator
to provide
The damping mechanism
A cylinder having a first end on the side of the elastic vibration isolator and a second end on the opposite side to the elastic vibration isolator, the cylinder having oil sealed therein;
a shaft supported by the first end of the cylinder and installed to be reciprocally movable in the cylinder;
a piston fixed to the shaft within the cylinder and having at least one orifice hole, and
Clothing provided inside the second end of the cylinder and provided with a silencer for reducing the sound generated by the oil undulating as the piston reciprocates in the cylinder together with the shaft; processing unit. The method of claim 1,
and a buffer body inside the silencer. 3. The method of claim 2,
The entire interior of the silencer is filled with the cushioning member. 4. The method according to claim 2 or 3,
and the cushioning member is in contact with an inner surface of the second end. 5. The method according to any one of claims 2 to 4,
and the cushioning body is fixed to the inside of the second end. 6. The method according to any one of claims 2 to 5,
The movement of the shock absorber toward the first end is regulated by a convex portion provided on an inner surface of the cylinder. 7. The method according to any one of claims 2 to 6,
and the buffer body is constituted by an elastic body having a permeability through which liquid and gas are permeable. the outer box constituting the perimeter;
a clothing treatment tank installed inside the outer box;
a rotating tub rotatably installed inside the clothes treatment tub; and
Anti-vibration device for damping vibration of the laundry treatment tank
A clothes processing apparatus comprising:
The anti-vibration device is
An elastic vibration isolator constituted by an elastic member, and
Damping mechanism disposed in series with the elastic vibration isolator
to provide
The damping mechanism
A cylinder having a first end on the side of the elastic vibration isolator and a second end on the opposite side to the elastic vibration isolator, the cylinder having oil sealed therein;
a shaft supported by the first end of the cylinder and installed to be reciprocally movable within the cylinder;
a piston fixed to the shaft within the cylinder and having at least one orifice hole, and
A shock absorber that is installed in a portion of the shaft closer to the second end than the piston and reduces the sound of the oil waving as the piston reciprocates in the cylinder together with the shaft
A clothes processing apparatus comprising: 9. The method of claim 8,
and the buffer body is provided to be movable by a predetermined distance from a portion of the shaft closer to the second end than to the piston. 10. The method according to claim 8 or 9,
and the buffer body includes a mesh-shaped portion through which the oil is permeable. 11. The method of claim 10,
and the cushioning body includes a support for supporting the mesh-shaped portion. the outer box constituting the perimeter;
a clothing treatment tank installed inside the outer box;
a rotating tub rotatably installed inside the clothes treatment tub; and
a vibration isolator for damping vibration of the clothes treatment tank;
A clothes processing apparatus comprising:
The anti-vibration device is
An elastic vibration isolator constituted by an elastic member, and
Damping mechanism disposed in series with the elastic vibration isolator
to provide
The damping mechanism
a cylinder having a first end on the side of the elastic vibration isolator, and a second end on the opposite side to the elastic vibration isolator, in which oil is sealed;
a shaft supported by the first end of the cylinder and installed to be reciprocally movable within the cylinder;
a piston fixed to the shaft inside the cylinder and having at least one orifice configuration;
It is installed in the middle part of the inside of the cylinder between the first end and the second end, and as the piston reciprocates in the cylinder with the shaft, it reduces the sound of the oil waving buffer
A clothes processing apparatus comprising: 13. The method of claim 12,
and the buffer member is provided at a position spaced apart from the piston in a state in which the piston moves toward the second end most within a reciprocating range. The dust isolator provided in the clothes processing apparatus in any one of Claims 1-13.

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