KR100434280B1 - Damping system of washing machine - Google Patents

Abstract

The present invention provides a washing machine having a drawer function capable of taking out and out of the outer tank in a lateral direction so that the installation space can be efficiently used and can be installed in various places even after installation. In addition, it effectively reduces vibrations while reducing the overall height of the washing machine.

To this end, the present invention provides a washing machine having a drawer function including a case having an opening portion formed at one side and a drawer which is retractable to the opening portion of the case and includes a cabinet having an outer tub and an inner tub for washing therein, Friction means provided in the shape of a plate between the bottom surface of the outer tub and the bottom of the cabinet to reduce the height of the case and to add friction energy to absorb the vibration energy during vibration of the outer tub, the lower circumference of the outer tub and the It is provided between the bottom surface of the cabinet to provide a vibration reducing device comprising an elastic means for adding a frictional force to the friction means and returning the outer tub.

Description

Damping system of washing machine {Damping system of washing machine}

The present invention relates to a washing machine, and more particularly, to a technology in which a vibration reduction device capable of reducing a height and a drawer function is added to a washing machine.

In general, a washing machine is a device that peels contaminants by applying energy such as impact to laundry, and may be divided into a pulsator type washing machine and a drum type washing machine according to a method of applying energy to laundry. That is, the laundry is impacted by the pulsator, or the laundry is dropped by rotating the drum to impact the laundry. And the action of the detergent is added to this is done washing.

On the other hand, the above-mentioned washing machine is a situation that is installed in the porch or toilet that is less noticeable from the vibration of the washing tank and the place where the damage is less noticeable to the person who is a particular place.

In other words, the pulsator type washing machine has a structure in which an inner tank, which is a washing tank, is placed perpendicular to the ground, in which the washing machine has a certain height to satisfy the washing capacity. Due to the opening and closing structure, it is not aesthetically pleasing to use in a general kitchen or living room other than the specific place (porch or toilet) mentioned above, and other equipment such as a microwave oven or a TV cannot be placed on top of the washing machine. It was difficult to harmonize with each other and there was a concern that the space of kitchen or living room would be reduced.

In other words, the best place to install a pulsator type washing machine in the kitchen is to be installed in the sink in harmony with other devices. It is very vulnerable to use with dishwasher or cutting board. This fragile structure is the same even when the pulsator type washing machine is installed in the living room. As a result, as the pulsator type washing machine takes such a weak structure, unbalanced space arrangement with other devices is induced, which may not be aesthetically sound and the space after installation may be narrowed. Accordingly, the pulsator type washing machine is installed and used in an inconspicuous place such as a toilet or a veranda.

On the other hand, the drum type washing machine takes a structure in which the inner tank of the washing tank is placed in a horizontal state with the horizontal structure having a low height, and also takes the front opening and closing type structure in which laundry can be put into the front part. Although it can solve the aesthetics and the inefficiency of space utilization, which is a concern of the pulsator washing machine, the washing capacity is smaller than that of the pulsator type washing machine. As the rotational force is transmitted, excessive vibration such as conical mode vibration is caused, which makes it unsuitable for equipping it in the kitchen sink or living room, and excessive vibration causes other items or other equipment to be placed on top of it. Not suitable for

Accordingly, there is a limitation (specificity) of the installation space to be installed and used in the bathroom or the veranda, which can reduce the damage from the vibration and the noise generated by the rotation of the inner tank, which is a washing tank.

Therefore, in general, a washing machine having a larger washing capacity, better washing ability, and less vibration than a drum type washing machine has been required.

In other words, it is required to develop a pulsator type washing machine with a new method to achieve aesthetics, efficiency of space utilization and diversity (non-limiting) of installation space.

By the necessity described above, it is an object of the present invention to provide a washing machine having a drawer function that can take advantage of the installation space efficiently and aesthetically good even after installation and can be pulled out in the lateral direction so that it can be installed in various places.

In addition, another object of the present invention is to add a vibration reducing device that can reduce the height to the washing machine, to reduce the overall height of the washing machine and to effectively damp the vibration.

1 is a perspective view showing the appearance of a washing machine having a drawer function according to the present invention.

FIG. 2A is a cross-sectional view taken along line II of FIG. 1 showing a longitudinal section of a drawer type washing machine equipped with a vibration reducing device according to a first embodiment of the present invention; FIG.

FIG. 2B is a detail view of the portion “A” of FIG. 2A; FIG.

FIG. 2C is a schematic diagram showing AB slant pads on AB coordinates for analyzing the force on the friction means of FIG. 2B; FIG.

FIG. 2D is a schematic view showing the elastic member of FIG. 2B on an AB coordinate; FIG.

3A is a cross-sectional view taken along line II of FIG. 1 showing a longitudinal section of a drawer type washing machine equipped with a vibration reduction device according to a second embodiment of the present invention.

3B is a detail view of the portion “A” of FIG. 3A;

FIG. 3C is a schematic diagram showing AB slant pads on AB coordinates for analyzing the force applied to the friction means of FIG. 3B; FIG.

3D is a schematic view showing the elastic member of FIG. 3B on an AB coordinate.

Figure 4 is a perspective view schematically showing a shape in which a drawer type washing machine according to the present invention is mounted on a sink, for example.

Explanation of symbols for main parts of the drawings

1: case 1a: opening of the case

3: cabinet 5: outer tub

7: inner tank 11: drive unit

131: slider 131a: through hole

132: first inclined pad 133: second inclined pad

134: horizontal pad 135: auxiliary pad

141: first mounting portion 142: second mounting portion

N: normal drag

In order to achieve the above object, there is provided a washing machine having a drawer function including a case having an opening portion formed on one side, and a drawer which is retractable to the opening portion of the case and includes a cabinet having an outer tub and an inner tub for washing therein.

In a washing machine provided with a cabinet and an outer tub and an inner tub in the cabinet, a plate is formed between a lower end of the outer tub and a bottom surface of the cabinet to reduce the height of the case and to absorb the vibration energy when the outer tub is vibrated. And friction means for adding friction energy to each other, and an elastic means provided between the lower circumference of the outer tub and the bottom surface of the cabinet to add friction to the friction means and return the outer tub to its original shape. To provide.

At this time, the friction means is provided between the bottom surface of the outer tank and the bottom surface of the cabinet, and the plate-shaped slider which is provided to be horizontal to the bottom surface of the outer tub, and provided in the plane of the slider and the cabinet A first inclined pad for forming a friction inclined surface inclined toward a center of the bottom surface of the first inclined pad and a bottom surface of the outer tub so as to face and face the friction inclined surface of the first inclined pad. A second inclined pad forming a friction inclined surface, and a horizontal pad provided on the bottom surface of the cabinet so as to contact the bottom surface of the slider and applying a predetermined frictional force to the slider when the slider is horizontally moved by vibration of the outer shell. Is preferred.

The elastic means may include a first mounting part provided around the lower end of the outer tub, a second mounting part provided at a portion located outside the position of the first mounting part of the bottom surface of the cabinet, and the first mounting part. One end is preferably connected to the elastic member is the other end is connected to the second mounting portion.

Here, one end of the elastic member is a predetermined obtuse angle with respect to the bottom surface of the outer tub, the other end of the elastic member is preferably a predetermined acute angle with respect to the plane of the slider. More specifically, the elastic member is more preferably positioned perpendicular to the friction inclined surface of the first inclined pad so as to have a force of the same direction and magnitude as the vertical drag on the first inclined pad.

On the other hand, the first inclined pad, the second inclined pad and the elastic member is a pair is preferably arranged at intervals of 120 degrees along the circumference of the outer tub.

In addition, it is preferable that the auxiliary pad for providing a predetermined friction force between the first inclined pad and the second inclined pad is further provided.

Here, as the material of the horizontal pad and the auxiliary pad, it has excellent characteristics not seen in other materials such as fatigue resistance, toughness, wear resistance, it is preferable to adopt a POM having a friction coefficient larger than other resin materials.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 1 is a perspective view showing the appearance of the drawer type washing machine according to the present invention, Figure 2a is a cross-sectional view of the I-I cross section of Figure 1 showing a longitudinal section of the drawer type washing machine equipped with a vibration reducing device according to a first embodiment of the present invention, 2B is a detailed view of the portion “A” of FIG. 2A, FIG. 2C is a schematic view showing the first inclined pad on AB coordinates to analyze the force applied to the friction means of FIG. 2B, and FIG. 2D is a view of the elastic member of FIG. 2B. It is a schematic diagram on AB coordinate.

3A is a sectional view taken along line I-I of FIG. 1 showing a longitudinal section of a draw type washing machine equipped with a vibration reducing device according to a second embodiment of the present invention, and FIG. 3C is a schematic diagram showing the first inclined pad on the AB coordinate for analyzing the force applied to the friction means of FIG. 3B, and FIG. 3D is a schematic diagram showing the elastic member of FIG. 3B on the AB coordinate.

4 is a perspective view schematically showing a shape in which a draw type washing machine according to the present invention is mounted on a sink, for example.

1, 2A and 3A, an embodiment of a washing machine having a drawer function according to the present invention will be described.

A case 1 having an opening portion 1a formed on one side thereof, and a cabinet 3 having an open upper end, is provided with a cabinet 3 that can be pulled out to an opening of the case. In the cabinet, an outer tub 5 for storing wash water is elastically installed, and an inner tub 7 having a plurality of through holes is rotatably installed inside the tub 5, and the tub 7 is rotatably installed. The pulsator 9 is rotatably installed in the interior thereof. And the drive part 11 which rotates the inner tank 7 and the pulsator 9 is provided in the bottom face 5a of the said outer tank 5.

In addition, the cabinet 3 and the case 1 in order to smoothly withdraw the cabinet 3 equipped with the outer tank 5 and the inner tank 7 through the opening 1a of the case. Sliding means 20 is preferably provided between.

In detail, the sliding means 20 may include rails 21 respectively provided on the lower left and right portions of the cabinet 3 and guides provided on the inner side of the case 1 to correspond to the rails. Preferably 22). More specifically, the rail 21 may be stepped on the lower left / right side of the cabinet 3, and the guide 22 may have a roller in an inline shape to smoothly move the stepped rail. It may be provided on the inner side of the case (1). In addition, a separate auxiliary member 21a may be further provided at the stepped portion for smooth contact with the roller.

In addition, the upper end of the outer tub 5, the washing cover 6 is provided intimately, it is preferable that the washing door 6a is rotatably installed on one side of the washing cover.

In addition, it is preferable that the handle 3a is mounted on the front portion of the cabinet 3 so as to smoothly pull out the cabinet by the user.

On the other hand, as the drive means 11, generally adopts a clutch type (a method of shifting and shifting the clutch from the clutch instead of directly transmitting power) used in a washing machine or a direct type (directly used for high-speed rotation) The rotor and stator can be controlled to transfer power directly to the inner tank and the pulsator. Of course, the drawer type washing machine according to the present invention will be more preferable to adopt a direct drive means that can be reduced in height because there is no need for a separate part for shifting, rather than a clutch type drive means having a separate clutch for shifting. . The reason is as desired.

In addition, the driving means 11 is installed on the bottom surface 5a of the outer tub 5. In this case, in order to prevent interference between the driving means and the bottom of the cabinet 3, a through hole 3b through which the driving means 11 may pass is formed at the center of the bottom of the cabinet 3. Do.

Hereinafter, referring to FIG. 1, FIG. 2A, and FIG. 3A, the assembling process of the drawer type washing machine will be described.

First, a case 1 having an opening portion 1a formed in a front portion thereof, and a cabinet 3 having a smaller overall size and an open upper end than the case are prepared. Then, after fastening the outer tub 5 equipped with the inner tub 7 and the driving means 11 to the prepared cabinet 3, the rail 21 of the cabinet is seated on the guide 22 of the case. .

In addition, the drawer-type washing machine assembled as described above may be installed at a place desired by a user such as a kitchen or a living room, and it may be most preferable to install at a sink equipped with a drainage system. At this time, if the user orders the sink in advance the case is formed, there is no need for a separate case there is an effect that the cost is reduced. Here, the aspect of the sink 100 provided with the draw type washing machine is shown in FIG.

On the other hand, the drawer-type washing machine assembled as described above is to perform the following washing process.

Before washing, when the user pulls the handle 3a of the cabinet 3 for washing, the cabinet 3 is smoothly drawn out along the guide 22, and a stopper protruding from the cabinet 3 when the predetermined stroke is drawn out. (Not shown) is stopped by the locking jaw (not shown) of the case 1, the user opens the laundry door (6a) provided on the top of the outer tank (5) to put the laundry to be washed and then the cabinet (3) If you push it in, the cabinet is seated inside the case (1).

During washing, if power is applied in the above state, the inner tank 7 is rotated by the operation of the driving means 11 to perform the washing operation, and the dehydration and rinsing are repeated as necessary.

After washing, when washing, rinsing, and dehydration are completed by the above-described action, pull the handle 3a to pull the cabinet 3 out of the case 1 to take out the laundry, and then again move the cabinet 3 into the case 1. Push it to complete the process.

On the other hand, in order to implement the drawer type washing machine having the above-described structure more preferably, a vibration reducing device for attenuating the vibration generated by the rotation of the inner tub 7 is required. In addition, the height of the cabinet 3 should not be increased by the vibration reduction device. This is because the height of the cabinet may not achieve the object of the present invention. Therefore, when the rod-type damper (not shown) used in the general pulsator type washing machine is adopted, since the height of the cabinet 3 is increased, the drawer type washing machine according to the present invention is not suitable. In detail, as is well known, the rod-shaped damper is installed in the up / down direction and thus requires an up / down moving space according to the up / down movement of the outer tub during outer tub vibration, which increases the height of the washing machine. Had been.

Accordingly, the drawer type washing machine according to the present invention is required to have a structure capable of reducing the height of the cabinet and to reduce vibrations effectively.

Hereinafter, referring to FIGS. 2A to 3D, two vibration reducing apparatuses applicable to the draw type washing machine according to the present invention will be described.

First, the first embodiment of the vibration reducing device, as shown in Figure 2a, is provided in the form of a plate between the lower end of the outer tub 5 and the bottom surface of the cabinet 3, the height of the case (1) Friction means for adding friction energy so as to absorb the vibration energy when the outer shell vibration is reduced, and is provided between the bottom surface 5a of the outer shell 5 and the bottom surface of the cabinet 3 and the outer shell during outer shell vibration. It comprises an elastic means for returning to the original state.

At this time, the friction means, as shown in Figure 2a and 2b, is provided with a horizontal movement between the bottom surface 5a of the outer tub and the bottom surface of the cabinet 3 and the bottom surface 5a of the outer tub ) And a plate-shaped slider 31 provided horizontally, and a friction inclined surface provided on a plane of the slider 31 and inclined at a predetermined angle α toward the center of the bottom surface of the cabinet 3 with respect to the slider. The first inclined pad 32 and the bottom surface 5a of the outer tub to be in contact with the friction inclined surface of the first inclined pad 32 to form a friction inclined surface having a predetermined angle α with respect to the slider. The second inclined pad 33 and the bottom surface of the cabinet 3 to be in contact with the bottom surface of the slider 31 is provided to the slider when the slider is moved horizontally by the vibration of the outer tub (5) Consists of a horizontal pad 34 to apply a friction force of Jim is desirable.

Here, the first inclined pad 32 may be formed integrally with the slider 31 or may be separately fixed. In addition, the through hole 31a is more preferably formed at the center side of the slider 31 in order to prevent interference with the driving unit 11 in advance.

And, the elastic means, as shown in Figure 2a and 2b, the support plate 41 protruding to the outer portion of the bottom surface 5a of the outer tank 5 to form a predetermined downward slope, and the An inclined portion 42 having an inclined surface formed on the bottom surface of the cabinet 3 so as to face the bottom of the support plate, and the support plate 41 and the inclined portion 42 are interconnected, but the first inclined pad 32 It is made of an elastic member 43 is connected to the inclined surface of the horizontal to return the position of the outer tub (5) to its original state during vibration.

Although not shown, the first inclined pad 32, the second inclined pad 33, and the elastic member 43 form a pair of vibration reduction units 120 along the circumference of the outer tub 5. It is preferable that three vibration reduction units are sequentially arranged at an interval.

Because, when arranged at intervals of 120 degrees in the circumferential direction, the first inclined pad 32 and the second inclined pad 33 is not constrained structurally, and the first inclined pad and the second inclined pad when the outer shell 5 vibrates. This is because the inclined pads can be moved while always being in contact with each other. That is, as the first inclined pad 32 and the second inclined pad 33 are moved in contact with each other, a sufficient frictional effect can be obtained, and thus the vibration energy generated when the outer shell is vibrated effectively reduces the first inclined pad and the first inclined pad 32. This is because the friction energy between the two inclined pads can be absorbed. In addition, when the position of the outer tub 5 is distracted, as the elastic member 43 is held at intervals of 120 degrees, it will be obvious that the position of the outer tub is correctly restored by the elastic member. On the other hand, the coil member 43 may be employed as the elastic member 43.

The vibration reduction device according to the first embodiment of the present invention made as described above performs the following operation.

When washing, the second inclined pad 33 formed on the outer tub 5 by the horizontal vibration of the outer tub 5 generated by the centrifugal force due to the rotation of the inner tub 7 is moved to the slider ( 31, the first inclined pad 32 mounted to the left / right direction is pushed (see “H” in FIG. 2B), and the vibration energy according to the horizontal vibration is the horizontal pad 34 provided in the cabinet 3. ) And the slider is moved by a predetermined amount in the left / right direction while being absorbed by the friction energy generated between the bottom surface and the bottom surface of the slider 31.

That is, as the vibration energy is absorbed by the friction energy, the horizontal vibration of the outer tub 5 is not directly transmitted to the case 1, but the slider 31 and the outer tub 5 seated thereon are reduced with friction energy. Will be moved quantitatively. In addition, the vibration energy is further reduced by the elastic energy of the coil spring 43, and as a result, the slider 31 and the outer tub 5 seated thereon are returned to their original positions by the restoration energy of the coil spring 43.

In addition, when the outer tub 5 is horizontally oscillated while the inner tub 7 rotates while the inner tub 7 rotates, the second inclined pad 33 of the outer tub 5 is moved by the slider 31. 1 moves along the first inclined pad 32 in contact with the inclined pad 32 (see “V” in FIG. 2B), wherein the left / right tilted vibration, that is, the vibration energy according to the first inclined pad The second inclined pad 33 formed in the outer tub 5 while being absorbed by the friction energy generated between the pad 32 and the second inclined pad 33 is the first inclined pad 32 mounted to the slider 31. A predetermined amount moves along.

At this time, due to the weight of the outer tub 5, the second inclined pad 33 tries to slide down along the first inclined pad 32 (see "V" in FIG. 2B). The vibration energy is absorbed by the friction energy generated between the two inclined pads. And while the second inclined pad 33 slides along the first inclined pad 32, a phenomenon in which the first inclined pad is pushed in the left / right direction may occur (see “H” in FIG. 2B). At this time, the vibration energy is absorbed by the friction energy generated between the horizontal pad 34 and the bottom of the slider 31 as described above, the vibration energy is further reduced by the elastic energy of the coil spring 43, The slider 31 and the outer tub 5 mounted thereon are returned to their original positions by the restoring energy of the coil spring 43.

However, when the outer tub 5 swings horizontally while the horizontal tub vibrates, the vibration energy of the outer tub according to the rotation of the inner tub 7 is increased by the second inclined pad 33 of the outer tub and the first of the slider. There may be a concern that the friction energy generated between the inclined pads 32 may not be absorbed by the friction energy (that is, the friction energy generated by the vertical force according to the weight of the outer tub).

If this is specifically mentioned, it is as follows.

First, as shown in Figs. 2b and 2c, W is the weight of the outer shell 5, the outer shell and everything contained therein, Is the vertical drag on the first inclined pad 32, Is a frictional force between the first inclined pad 32 and the second inclined pad 33 as a value proportional to the vertical drag, Is the horizontal component,

And, as shown in Figure 2d, Is the force of the coil spring 43. However, as can be seen in FIG. 2B, the inclination angle of the coil spring 43 with respect to the slider 31 is the same as the inclination angle of the first inclination pad 32 with respect to the slider 31, that is, the coil spring 43. ) And the second inclined pad 33 are inclined clockwise by α with respect to the slider 31 which is the inclined angle in the same direction, the force of the coil spring 43 is applied to the first inclined pad 32 and the second inclined pad. It does not affect the frictional force (Fμ) between (33). That is, the force of the coil spring 32 on the first inclined pad 32 ( )this (= 0), the frictional force along the normal drag (N) ) Only exists between the first inclined pad 32 and the second inclined pad 33.

That is, since there is no friction energy according to the force of the coil spring 43, when the outer tank 5 vibrates excessively, that is, when the vibration energy exceeds the friction energy due to the vertical drag according to the weight of the outer tank, Concerns may arise that the vibration of the outer shell is not properly controlled.

Accordingly, in order to convert the force of the coil spring 43 into friction energy, it is preferable to appropriately change the mounting position of the coil spring 43.

Hereinafter, the structure of the vibration reduction device according to the second embodiment of the present invention reflecting this will be described with reference to FIG. 3.

That is, the second embodiment of the vibration reducing device, as shown in Figure 3a, is provided in the form of a plate between the bottom surface 5a of the outer tub 5 and the bottom surface of the cabinet 3, the case (1) Friction means for adding a friction energy to absorb the vibration energy when the vibration of the outer shell and reduce the height of the outer shell, and is provided between the lower circumference of the outer tub 5 and the bottom surface of the cabinet 3 to the friction means. It is preferable to include an elastic means for returning the outer tank 5 to the original while adding a frictional force.

At this time, the friction means, as shown in Figure 3a and 3b, is provided with a horizontal movement between the bottom surface 5a of the outer tub and the bottom surface of the cabinet 3 and the bottom surface 5a of the outer tub ) And a plate-shaped slider 131 provided horizontally, and a friction inclined surface provided on a plane of the slider 131 and inclined at a predetermined angle α toward the center of the bottom surface of the cabinet 3 with respect to the slider. The first inclined pad 132 to be provided on the bottom surface 5a of the outer tub so as to face the friction inclined surface of the first inclined pad 132 to form a friction inclined surface having a predetermined angle α with respect to the slider. A second inclined pad 133 and a bottom surface of the cabinet 3 to be in contact with a bottom surface of the slider 131 so that the slider 131 is horizontally moved by vibration of the outer tub 5. ) Horizontal pad 134 to apply a predetermined frictional force to Yirueojim is desirable.

Here, the first inclined pad 132 may be integrally formed with the slider 131 or may be separately fixed. In addition, the through hole 131a is more preferably formed at the center side of the slider 131 to prevent interference with the driving unit 11 in advance.

3A and 3B, the elastic means includes a first mounting part 141 provided around the lower end of the outer tub 5 and the first mounting part of the bottom surface of the cabinet 3. And a second mounting portion 142 provided at a portion located outside the position of 141. One end is connected to the first mounting portion 141 and preferably the elastic member 143 having the other end connected to the second mounting portion 142. Here, the reason why the second mounting portion 142 is located at the outer side than the first mounting portion 141 is to change the position of the elastic member 143, and more specifically, as described below, the elastic member ( 143) the power of ) Is added to the friction force Fμ between the first inclined pad 132 and the second inclined pad 133 together with the vertical force N.

That is, one end of the elastic member 143 forms a predetermined obtuse angle with respect to the bottom surface 5a of the outer tub, and the other end of the elastic member 143 forms a predetermined acute angle with respect to the plane of the slider 131. Preferably, more specifically, the elastic member 143 of the first inclined pad 132 to have a force of the same direction and magnitude as the vertical drag (N) applied to the first inclined pad 131. More preferably, it is located perpendicular to the friction inclined surface.

Although not shown, the first inclined pad 132, the second inclined pad 133, and the elastic member 143 form a pair of vibration reducing units at intervals of 120 degrees along the circumference of the outer tub. Three vibration reduction units are preferably arranged sequentially.

Because, when arranged at intervals of 120 degrees in the circumferential direction, the first inclined pad 132 and the second inclined pad 133 is not constrained structurally, the first inclined pad and the second inclined pad in the vibration of the outer shell Is able to be moved while always in contact with each other. That is, as the first inclined pad 132 and the second inclined pad 133 are moved in contact with each other, a sufficient frictional effect may be obtained, and thus, the vibration energy generated when the outer tub 5 is vibrated effectively may be inclined first. This is because the friction energy between the pad and the second inclined pad can be absorbed. In addition, when the position of the outer tub 5 is distracted, as the elastic member 143 is held at a 120-degree interval, it will be obvious that the position of the outer tub is correctly restored by the elastic member. Meanwhile, the coil spring may be employed as the elastic member 143.

In addition, an auxiliary pad 135 may be further provided to impart a predetermined friction force between the first inclined pad 132 and the second inclined pad 133. More specifically, the auxiliary pad 135 may be integrally formed with the first inclined pad 132 or the second inclined pad 133 or may be separately fixed.

In addition, as a material of the horizontal pad 134 and the auxiliary pad 135, it has excellent characteristics not seen in other materials such as fatigue resistance, toughness, wear resistance, and adopts a POM having a friction coefficient larger than other resin materials. This is preferable.

Hereinafter, the operation of the vibration reducing device according to the second embodiment of the present invention made as described above is omitted because it is similar to the operation of the vibration reducing device according to the first embodiment, the structure and configuration not present in the first embodiment of the present invention More specifically, based on the elements.

In addition, an auxiliary pad 135 is provided between the first inclined pad 132 and the second inclined pad 133 in the drawing. For ease of understanding, the first inclined pad and the second inclined pad without the auxiliary pad are provided. It will be described under the state in which the pad is in direct contact.

First, as shown in Figs. 3b and 3c, W is the weight of the outer shell 5, the outer shell and everything contained therein, Is the vertical drag on the first inclined pad 132, Is a value proportional to the normal drag and is a friction force between the first inclined pad 132 and the second inclined pad 133, Is the horizontal component.

And, referring to Figure 3d, Is the force of the coil spring 143. Here, referring again to FIG. 3B, the inclination angle of the coil spring 143 with respect to the vertical extension line B of the outer tub 5 (an extension line perpendicular to the slider) is α in a clockwise direction and a first angle with respect to the slider 131. Since the inclination angle of the inclined pad 132 is α in the clockwise direction, the force of the coil spring 143 ( ) Affects the frictional force Fμ between the first inclined pad 132 and the second inclined pad 133 together with the vertical drag N. That is, the force of the coil spring on the first inclined pad 132 ( ) Is ky, the normal drag (N) and the coil spring force ( Together increase the friction force (Fμ). Where the frictional force according to the force of the vertical drag and the force of the coil spring to be.

Further, even when the inclination angle of the coil spring 143 with respect to the vertical extension line B of the outer tub 5 takes a predetermined acute angle β in the clockwise direction, the force of the coil spring 143 thereby reinforces the frictional force. It will be natural.

As a result, when the outer tub 5 swings horizontally while the horizontal tubing is large, the vibration energy of the outer tub 5 according to the rotation of the inner tub 7 is increased by the second inclined pad 133 of the outer tub. And the coil spring 143 when there is a concern that the friction energy generated between the first inclined pad 132 of the slider and the friction energy generated by the vertical force N according to the weight of the outer tub is not absorbed. Power of By the friction energy is added) it is possible to effectively absorb the vibration energy.

In addition, as shown in Figure 3a and Figure 3b, in the vibration reducing device according to the second embodiment of the present invention by taking the structure that the coil spring 143 is exposed to the outside, it is easy to assemble the coil spring There is an effect of improving the assembly.

On the other hand, the first embodiment and the second embodiment of the vibration reducing device is not limited to a drawer type washing machine, it will be obvious that it is also applicable to a general pulsator type washing machine. That is, although not shown, the general pulsator type washing machine is largely divided into a cabinet (main body) forming an exterior, an outer tank provided in the cabinet, and an inner tank rotatably supported in the outer tank, wherein the drawer function described above As mentioned in the washing machine having a vibration reducing device provided between the bottom of the outer tub and the bottom of the cabinet, it will be obvious that the bottom of the outer tub of the general pulsator type washing machine and the bottom of the cabinet (vanebody).

So far, the present invention has been described with reference to the preferred embodiments, and those skilled in the art to which the present invention pertains to the detailed description of the present invention and other forms of embodiments within the essential technical scope of the present invention. Could be implemented. Here, the essential technical scope of the present invention is shown in the claims, and all differences within the equivalent range will be construed as being included in the present invention.

As described above, according to the present invention, by providing a washing machine having a drawer function capable of drawing out the outer tub in the lateral direction, the installation space can be efficiently utilized, and the appearance is good even after installation, and there is an advantage that it can be installed in various places. In particular, there is an advantage that can be installed in the sink is equipped with a drainage.

And, by adding a vibration reducing device that can reduce the height to the washing machine, there is an advantage that can effectively reduce the vibration while reducing the overall height of the washing machine. In addition, since the vibration reducing device according to the second embodiment of the present invention can improve the friction energy, it is possible to more effectively absorb the vibration energy to reduce the vibration, and also has the advantage of improving the assembly.

And it includes all the effects mentioned in the detailed description of the invention.

Claims (7)

A cabinet and a washing machine provided with an outer tank and an inner tank in the cabinet, Friction means provided in the shape of a plate between the bottom of the outer tank and the bottom surface of the cabinet to reduce the height of the case and to add friction energy to absorb the vibration energy during vibration of the outer tank, And a resilient means provided between the bottom circumference of the outer tub and the bottom surface of the cabinet to add friction to the friction means and return the outer tub to its original shape. The method of claim 1, The friction means is; A plate-shaped slider provided horizontally between the bottom surface of the outer tub and the bottom surface of the cabinet and provided horizontally with the bottom surface of the outer tub; A first inclined pad provided in a plane of the slider to form a friction inclined surface that is inclined at a predetermined angle α toward the center of the bottom surface of the cabinet; A second inclined pad provided on a bottom surface of the outer tub so as to face the friction inclined surface of the first inclined pad to form a friction inclined surface at a predetermined angle with respect to the slider; It is provided on the bottom surface of the cabinet to contact the bottom of the slider, vibration reduction device of the washing machine, characterized in that made of a horizontal pad to apply a predetermined friction force to the slider when the slider is horizontally moved by the vibration of the outer tank The method of claim 1, The elastic means; A first mounting portion provided around the lower end of the outer tub; A second mounting part provided at a portion located at an outer side of the bottom surface of the cabinet than the position of the first mounting part; One end is connected to the first mounting portion and the vibration reducing device of the washing machine, characterized in that made of an elastic member connected to the other end. The method of claim 2 or 3, The first inclined pad, the second inclined pad and the elastic member is a pair of vibration reducing device of the washing machine, characterized in that arranged at intervals of 120 degrees along the circumference of the outer tub. The method of claim 4, wherein The vibration reducing device of the washing machine, characterized in that the elastic member is positioned perpendicular to the friction inclined surface of the first inclined pad so as to have a force of the same direction and size as the vertical drag on the first inclined pad. The method of claim 2, The vibration reducing device of the washing machine, characterized in that the auxiliary pad is further provided to give a predetermined friction force between the first inclined pad and the second inclined pad. The method of claim 2, In order to prevent interference between the slider and the driving unit provided on the bottom of the outer tub, the vibration reduction device of the washing machine, characterized in that the through hole through which the driving unit can pass further formed in the center side of the slider.