JPH0544319B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to noise reduction during use of washing machines.

BACKGROUND OF THE INVENTION In recent years, as society has become increasingly concerned about noise problems, attention has been focused on reducing the noise of home appliances with motors, such as washing machines.

In conventional washing machines, the bottom of the main body was not covered and the legs had gaps, so the inside and outside of the main body communicated over a large area.

Problems to be Solved by the Invention However, in the conventional configuration described above, the sound generated by the motor and other drive-related parts during washing and dehydration propagates to the outside of the main body through the gaps between the bottom of the main body and the legs. , which had the disadvantage of significantly increasing the noise level. In addition, as a means to solve this problem, in a structure that simply fixes the bottom plate to the bottom of the main unit to insulate the sound inside the main unit, if an abnormal situation such as flooding occurs where water flows into the main unit, water will leak to the bottom of the main unit. This had the disadvantage that various electrical parts inside the main body were soaked in water, causing poor insulation.

The present invention solves the above conventional problems,
The purpose of the present invention is to provide a washing machine that reduces the noise level during washing and dehydration, and that does not cause insulation failure in electrical components within the main body even if an abnormal situation such as overflow occurs in which water flows into the main body. do.

Means for Solving the Problems A first aspect of the present invention for achieving this object is an outer tank that is suspended within the main body via a suspension and that is provided with a motor, a transmission mechanism, and a transfer fitting on the outer bottom. , an inner tank provided inside this outer tank and serving both as dehydration and washing, a stirring blade arranged at the inner bottom of this inner tank and receiving rotation of the motor via the transmission mechanism, and an open bottom part of the main body. Equipped with a bottom plate that closes the
The bottom plate has a concave water storage portion and is detachably attached to the bottom of the main body using a magnet.

In a second aspect of the invention, the bottom plate urged in the closing direction by the spring is pivoted to the bottom of the main body by a pin so as to be rotatable to open and close the opening at the bottom of the main body, and A concave water storage portion is formed on the opposite side of the shaft support.

Function: With this configuration, the sound generated by the motor and other drive-related parts during washing and dehydration is insulated by the bottom plate provided at the bottom of the main body, resulting in a significant reduction in the noise level. Furthermore, if an abnormal situation occurs in which water flows into the main body due to flooding, etc., the bottom plate is pushed open by the weight of the water, so that the water flowing into the main body is drained without accumulating.

Embodiments Examples of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, 1 is a main body, and 2 is a support section attached to the main body 1. Reference numeral 3 denotes an outer tank, which is suspended from the support part 2 by a suspension 4 having a spring and a damper. 5 is an inner tank, which doubles as a washing tank and a dehydration tank. 6 is a stirring blade provided at the center bottom of the inner tank 5; 7 is the stirring blade 6 and the inner tank 5;
It is a transmission mechanism that transmits rotational force to the machine, and has a reduction gear for washing and a switching clutch for washing and spin-drying inside. Reference numeral 8 denotes a motor that applies rotational force to the transmission mechanism section 7. Reference numeral 9 denotes a transfer metal fitting, which is provided at the bottom of the outer tank 3. 10 is a bottom plate, and a magnet 11 is placed on the upper surface of the outer periphery.
The bottom plate 10 is attached to the bottom of the main body 1 from below by a magnetic force that is strong enough to prevent it from falling under its own weight.
Further, the bottom plate 10 is provided with a concave water storage portion 12.

The operation of the washing machine configured as described above will be explained below.

Washing is carried out by putting laundry and washing water into the inner tub 5, turning the switching clutch of the transmission mechanism 7 to the washing side, and transmitting the rotation of the motor 8 to the stirring blades 6. Next, dewatering is performed by setting the switching clutch of the transmission mechanism 7 to the dewatering side and transmitting the rotation of the motor 8 to the inner tank 5. During the above-mentioned washing and dehydration operations, the motor 8, the transmission mechanism 7, etc. generate noise due to the drive, but in this embodiment, the bottom plate 10 is attached to the bottom of the main body 1, It insulates the sound generated from the outside, significantly lowering the noise level to the outside.

Next, when water overflows from the outer tank 3 due to a malfunction or the like and water flows into the main body 1, water accumulates in the water storage section 12 of the bottom plate 10, and a downward force is generated on the bottom plate 10 due to the weight of the accumulated water. is larger than the magnetic force of the magnet 11 that attaches the main body 1 and the bottom plate 10, the bottom plate 1
The water that falls from the main body 1 and flows into the main body 1 is drained through the gap formed at the bottom of the main body 1, so that water does not accumulate inside the main body 1.

As described above, according to this embodiment, the bottom plate 10 is attached to the bottom of the main body 1 with a magnetic force strong enough to prevent it from falling under its own weight, so that the internal sound of the main body 1 is insulated and the noise level is significantly lowered. , outer tank 3
If an abnormal situation occurs in which water flows inside the main body 1, such as overflowing, the bottom plate 10 will fall from the main body 1 and drain the water flowing into the main body 1, thereby draining the inside of the main body 1. This prevents various electrical parts from getting soaked in water and causing insulation defects. moreover,
Since the main body 1 and the bottom plate 10 are attached by magnetic force, the bottom plate 10 can be easily attached and removed, and even if the bottom plate 10, which is used to drain water flowing into the main body 1, falls, it can be easily returned to the initial state. It can be returned.
In addition, in order to prevent the main body 1 and the outer tub 3 from colliding while the washing machine is being transferred, the upper part of the outer tub 3 is held on the inner surface of the inner tub 5 during packaging, and the lower part is held on the bottom of the transfer fitting 9. Conventionally, the outer tank 3 is fixed by doing this, but if you take advantage of the fact that the bottom plate 10 is easy to attach and detach, the above conventional method can be used as is to solve the problem during transportation. I can do it. That is, when packing for transportation, the bottom plate 10 can be removed from the main body 1, and the bottom plate 10 can be attached to the main body 1 when installing the washing machine. Furthermore, by providing the concave water storage portion 12 in the bottom plate, the ease of detachment of the bottom plate 10 in an abnormal situation where water flows into the main body 1 is improved, and the strength of the bottom plate 10 is improved to prevent chatter of the bottom plate 10. In order to eliminate this problem, a thinner bottom plate 10 can be used, and costs can be reduced.

Next, FIG. 3 shows a second embodiment of the present invention. In the figure, 13 is a pin provided at the bottom of the main body 1. 14 is a bottom plate, one end of which is hooked onto pin 13. A spring 15 has its central portion passed through the pin 13, and has one end pressed against the main body 1 and the other end against the bottom plate 14 to apply force in the direction of closing the bottom plate 14. A magnet 16 is attached to the upper surface of the bottom plate 14 on the opposite side from the pin 13. Reference numeral 17 denotes a water storage section, which is provided by forming a groove near the magnet 16 side of the bottom plate 14. Furthermore, in the water storage section 17,
A small hole 18 is provided.

With the above configuration, when an abnormal situation occurs in which water flows into the main body 1, some of the water flows out through the small hole 18, but most of the water that flows in is collected in the water storage part 17, and the weight of the water is Yotsute bottom plate 1
4 opens using pin 13 as a fulcrum. This action causes the inflowing water to be drained away. When this abnormal situation ends and there is no more water flowing in, the bottom plate 4 returns to its original state due to the action of the spring 15. This allows the bottom plate 14 to be opened and closed automatically, improving operability. In addition, the bottom plate 1
4 returns to its original state, the water remaining in the water storage part 17 is gradually drained from the small hole 18, and the water does not accumulate in the bottom plate 14 and corrode the inside.
Furthermore, if the hole is of this size, the sound insulation properties will not be degraded.

Incidentally, the above-mentioned contents can be similarly applied to the second embodiment. In addition, in the same example, the adhesion force was
It is applied using magnetic force and spring force, but if you adjust the spring force alone, you can achieve the same effect.

Effects of the Invention As described above, the present invention maintains the closed state of the bottom plate having a water storage portion by the biasing force of a magnet or a spring, thereby insulating internal sound by the bottom plate and significantly reducing the noise level. In the event of an abnormal situation where water flows into the main body, such as an overflow, the bottom plate will come off from the main body, draining the water that has flowed into the main body, and preventing insulation failure due to the various electrical parts inside the main body being soaked in water. This makes it possible to eliminate the occurrence of washing problems, and because the structure is simple as described above, it is possible to realize an excellent washing machine that can be manufactured at a very low cost. In addition, since the bottom of the main body can be opened arbitrarily, when transferring the washing machine, the bottom of the outer tub, that is, the fixing member of the transfer fitting can be inserted through the opening.
In particular, great effects can be expected in single-tank washing machines that have an outer tub suspended within the main body via a suspension.

Furthermore, the concave water storage area increases the strength of the bottom plate and suppresses chatter noise.

In the second invention, since the concave water storage portion is formed on the opposite side of the bottom plate from the pivot support, the moment when water is stored becomes large, and thereby the bottom plate can be opened reliably when necessary. be.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a washing machine according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of the same main part, and FIG. be. 1... Main body, 5... Washing tub, 6... Stirring blade, 8
...Motor, 10, 14...Bottom plate, 11, 16...
...Magnet, 12,17...Water storage part.

Claims (1)

[Claims] 1. Suspended within the main body via a suspension,
An outer tank with a motor, a transmission mechanism, and a transfer fitting installed on the outer bottom; an inner tank installed inside the outer tank that serves both for dehydration and washing; and an inner tank installed at the inner bottom of the inner tank and equipped with the transmission mechanism. A washing machine comprising: a stirring blade that receives rotation of a motor through the washing machine; and a bottom plate that closes an open bottom part of the main body, the bottom plate having a concave water storage part, and detachably attached to the bottom of the main body with a magnet. 2 Suspended within the main body via the suspension,
An outer tank with a motor, a transmission mechanism, and a transfer fitting installed on the outer bottom; an inner tank installed inside the outer tank that serves both for dehydration and washing; and an inner tank installed at the inner bottom of the inner tank and equipped with the transmission mechanism. The stirring blade receives the rotation of the motor through the stirring blade, and the bottom plate closes the open bottom part of the main body by the biasing force of a spring, and is pivoted to the bottom of the main body by the bottom plate pin to open and close the open bottom part of the main body. This washing machine is configured to be rotatable as shown in FIG. 3. The washing machine according to claim 2, wherein a small hole is formed in the lowest part of the water storage part.