JPH0734840B2 - Washing machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a washing machine for reducing noise during use.

2. Description of the Related Art In recent years, attention has been paid to noise reduction of electric home appliances having a motor in a social situation where attention to noise problems is increasing, and a washing machine is one of them.

A configuration for reducing noise of a conventional washing machine will be described with reference to FIG. In the figure, 1 is a main body of a washing machine, and the bottom of the main body 1 is open. Reference numeral 2 is a support portion attached to the main body 1, and 3 is an outer tank, which is supported by the support portion 2 inside the main body 1 by a suspension 4 having a spring and a damper. Reference numeral 5 denotes an inner tub provided in the outer tub 3, which serves both as a washing tub and a dehydrating tub. 6 is a stirring blade provided at the center bottom of the inner tub 5, and 7 is a transmission mechanism section for rotating the stirring wing 6 and the inner tub 5, which has a reduction gear for washing and a
A switching clutch for dehydration is provided. Reference numeral 8 denotes a motor attached to the bottom of the outer tank 3, which drives the inner tank 5 and the stirring blade 6 by supplying power to the transmission mechanism 7 via a pulley and a belt.
9 is a metal fitting for transportation, which is provided at the bottom of the outer tub 3. Ten
Is a foot that supports the main body 1.

The operation of the washing machine configured as described above will be described below. Washing is performed by putting laundry and washing water in the inner tub 5, setting the switching clutch of the transmission mechanism unit 7 to the washing side, and transmitting the rotation of the motor 8 to the stirring blade 6 via the transmission mechanism unit 7. Dewatering is performed by putting the laundry in the inner tub 5, setting the switching clutch of the transmission mechanism 7 to the dehydration side, and transmitting the rotation of the motor 8 to the inner tub 5 via the transmission mechanism 7.

Problems to be Solved by the Invention However, in the above-described configuration, the sound generated from the drive-related parts such as the motor 8 and the transmission mechanism portion 7 at the time of washing or dehydration, the sound generated by the vibration of the outer tub 3, and the like. The internal sound of the main body 1 has a drawback that it propagates to the outside of the main body 1 through the opening at the bottom of the main body 1 and the gap between the feet 10 as shown by the arrow, and significantly increases the noise level. Therefore, as a means for solving this, it is conceivable to simply cover the opening at the bottom of the main body 1 to block the internal sound of the main body 1 and lower the noise level. When an abnormal situation occurs such that water flows into the gap between the main body 1 and the outer tub 3, water accumulates on the inner bottom of the main body 1 and various electric powers provided inside the main body 1 for driving the motor 8 are generated. It has a drawback that parts get wet with water and cause insulation failure.

The present invention solves the above-mentioned conventional problems and reduces the noise level at the time of washing and dehydration, and even when an abnormal situation in which water flows between the main body and the outer tub due to overflow or the like, It is an object of the present invention to provide a washing machine in which insulation failure does not occur in the electric parts.

Means for Solving the Problems In order to achieve this object, a washing machine of the present invention is provided with a bottom plate having a communication hole at the bottom of a main body, and further, a communication hole is provided with a slit to provide elastic sound insulation. The body is attached, and the sound insulation body separates the inside and the outside of the main body.

With this configuration, the sound generated inside the main body such as the sound generated from the driving parts such as the motor during the washing or the dehydration, the sound generated from the vibration of the outer tub, etc. is provided on the bottom plate of the main body. The sound level is significantly reduced because the sound is insulated by the sound insulation body attached to the communication hole of the bottom plate. Furthermore, even if an abnormal situation occurs in which water flows between the main body and the outer tank due to overflowing water, etc., the inflowing water spreads the elastic sound insulation body with the slit, so the slit opens and the inflowing water is removed. Since it will be discharged, insulation failure due to various electric parts inside the main body being submerged in water is eliminated.

Embodiment One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a washing machine according to a first embodiment of the present invention, and FIG. 2 is a perspective view of the main part thereof. In the drawings, 1 is a main body, 2 is a support part, 3 is an outer tank, 4 is a suspension, 5 is an inner tank, 6 is a stirring blade, 7 is a transmission mechanism part, 8 is a motor, 9 is a metal fitting for transportation, and 10 is a foot. The above is the same as the configuration of the conventional example. Reference numeral 11 denotes a bottom plate, which is integrally formed with the bottom of the main body 1 and is a member fixed separately. Reference numeral 12 is a communication hole provided in the bottom plate 11. 13 is the installation surface of the washing machine. 14
Is a sound insulating body made of rubber or the like and having elasticity, and has a tubular shape that spreads slightly downward, one end is fixed around the communication hole 12, and the other end abuts the installation surface 13. A space between the installation surface 13 and the bottom plate 11 is closed to partition the inside and outside of the main body. Reference numeral 15 denotes a plurality of slits, which are attached to the sound insulation body 14 from bottom to top.

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

The washing and dehydrating operations are performed by rotating the motor 8 to the stirring blade 6 or the inner tub 5 via the transmission mechanism 7 as in the conventional example. At this time, the noise level is that the sound generated inside the main body 1 such as the sound generated from the drive parts such as the motor 8 and the transmission mechanism part 7 and the sound generated from the vibration of the outer tub 3 propagates to the outside of the main body 1. It is a big factor to raise. In the present embodiment, the bottom plate 11 provided at the bottom of the main body 1 and the installation surface 13 from the bottom plate 11
Since the sound insulation body 14 mounted toward the sound insulation of the sound due to the air propagation, the noise level can be remarkably reduced. In addition, even if the installation surface 13 has some irregularities, the sound insulation 14 has elasticity, so that the sound insulation characteristics are hardly deteriorated. In addition, water overflows from the outer tank 3 due to a failure,
When an abnormal situation occurs in which water flows into the gap between the main body 1 and the outer tub 3, the inflowing water spreads the sound insulating body 14 in the direction of the arrow a, so the slit 15 attached to the sound insulating body 14 is opened. Then, the inflowing water is drained to the outside of the main body 1. As a result, various electric components such as the motor 8 inside the main body 1 are not submerged in water and insulation failure does not occur. further,
When the water that has flowed in disappears, the sound insulating body 14 has elasticity, and therefore returns to the initial state, the slit 15 is closed, and the sound insulating property is not deteriorated. In this example,
Since the sound insulating body 14 is attached to the bottom plate 11 with a slight inclination, the opening / closing property of the slit 15 is improved, but if a material having good elastic characteristics is used for the sound insulating body 14, there is no problem even if it is vertical. Further, in order to prevent the main body 1 and the outer tub 3 from colliding with each other when transporting the washing machine, conventionally, the upper part of the outer tub 3 is held on the inner surface of the inner tub 5 by using a transport tool at the time of packing. The outer tub 3 is fixed by holding the lower part of the metal fitting 9 for transportation by the bottom of the metal fitting 9, but in this embodiment, a communication hole 12 is provided under the metal fitting 9 for transportation. Since the metal fittings 9 for transportation can be held, the above conventional method can be used as it is. That is, packaging for shipping requires little modification of conventional designs.

FIG. 3 is a perspective view of an essential part of a washing machine showing a second embodiment of the present invention, and FIG. 4 is a sectional view of the same part. The figure shows the structure of the bottom portion of the main body 1 different from that of the first embodiment. That is,
10 is a foot, 11 is a bottom plate, and 12 is a communication hole. The above is the same as in the first embodiment. Reference numeral 16 is a slit, which is provided in a sound insulation body 17 having elasticity. The sound insulation body 17 has a flat plate shape and is attached to the communication hole 12 so as to be substantially flush with the bottom plate 11 to partition the inside and outside of the main body. In this embodiment, since it is not affected by the state of the installation surface, it is possible to obtain stable sound insulation characteristics and the effect of flood countermeasures. Further, the water that has flowed in between the main body 1 and the outer tub 3 spreads the sound insulating body 17 in the direction of the arrow b and is drained.

Incidentally, as is common to both the above-mentioned examples, it goes without saying that if the bottom plate 11 is processed so as to be slightly convex downward and the communication hole 12 is provided at the lowest point, drainage at the time of flooding is improved. Nor.

EFFECTS OF THE INVENTION As described above, the present invention provides a bottom plate having a communication hole at the bottom of the main body of a washing machine, and further has an elastic sound insulation body provided with a slit in the communication hole, and is attached to the inside of the main body by the sound insulation body. By separating from the outside, the sound generated from the driving parts such as the motor at the time of washing or dehydration and the sound generated inside the main body such as the sound generated from the vibration of the outer tub etc. can be insulated, The internal sound is suppressed from being transmitted to the air. Therefore, the noise level can be remarkably reduced, and even if an abnormal situation occurs in which water flows in between the main body and the outer tub due to overflow or the like, the sound inflowing elastic body is provided with slits. Since various electric parts such as the motor inside the main body are not submerged in water, the insulation failure can be eliminated because the internal parts of the main body are drained and drained, and the number of parts required for the configuration is small and the mass productivity is good, so the manufacturing cost is low. There is also an advantage that it is cheap, and the effect is great.

[Brief description of drawings]

FIG. 1 is a sectional view of a washing machine according to a first embodiment of the present invention, FIG. 2 is a perspective view of an essential part thereof, and FIG. 3 is a perspective view of an essential part of a washing machine according to a second embodiment of the present invention. FIG. 4 is a sectional view of the main part of the same, and FIG. 5 is a sectional view of a conventional washing machine. 1 ... Main body, 3 ... Outer tank, 5 ... Inner tank, 6 ... Stirring blade,
8 ... Motor, 11 ... Bottom plate, 12 ... Communication hole, 14, 17 ...
Sound insulation, 15,16 …… Slits.

Claims (2)

[Claims] 1. A main body of a washing machine, an outer tub having an inner tub for washing and dehydrating, which is vibration-isolated and supported in the main body, a stirring blade for stirring the inner tub, and an inner tub and a stirring wing are driven. And a motor, which has a communication hole formed in the bottom plate of the bottom of the main body and has elasticity, and the sound insulation surrounds the connection hole and closes the gap between the bottom plate and the installation surface. , A washing machine provided with a plurality of slits from the end of its installation side toward the bottom plate. 2. A main body of a washing machine, an outer tub having an inner tub for washing and dehydrating, which is vibration-supported in the main body, a stirring blade for stirring the inner tub, and an inner tub and a stirring wing are driven. And a sound insulating body having elasticity is formed in the bottom plate of the bottom of the main body, and the sound insulating body is provided so as to close the communication hole and constitutes a plurality of valve opening portions. Washing machine with slits.