JPH0747071B2 - 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 A conventional washing machine has a structure as shown in FIG. 6, for example, as shown in Japanese Utility Model Publication No. 49-30710. That is, in the figure, 1 is the main body of the dehydration washing machine, and the bottom is open. Reference numeral 2 denotes a washing / dehydrating tank having a plurality of dewatering holes 3 formed in its inner peripheral wall, 4 denotes a washing receiving tank having the washing / dehydrating tank 2 rotatably installed therein, and 5 denotes a central bottom portion of the washing / dehydrating tank 2. The agitating blade 6 is a transmission mechanism, which internally includes a reduction gear for washing, a switching clutch for washing / dewatering, and a brake for dewatering. Reference numeral 7 is a motor attached to the bottom of the laundry receiving tub 4, and the power of the motor 7 is transmitted via a motor pulley 8, a belt 9 and an impeller pulley 10. An anti-vibration mechanism 11 is suspended from the main body 1 and supports the laundry receiving tub 4 from the main body 1 by anti-vibration. 12 is a leg, which is fixed to the four corners of the bottom of the main body 1. 13 is a transfer metal fitting, which is a washing tank 4
It is attached to the bottom of the
In order to prevent the main body 1 and the laundry receiving tub 4 from colliding with each other, the upper part of the inner surface of the washing / dehydrating tub 2 is held at the time of packaging, and the lower part holds the bottom of the transfer fitting 13 to fix the laundry receiving tub 4. 14 is the installation surface.

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 washing / dehydrating tub 2, setting the switching clutch of the transmission mechanism section 6 to the washing side, and transmitting the rotation of the motor 7 to the stirring blade 5 via the transmission mechanism section 6. . For dehydration, the laundry is put in the washing / dehydrating tub 2, the switching clutch of the transmission mechanism 6 is set to the dehydration side, and the rotation of the motor 7 is transmitted to the washing / dehydrating tub 2 via the transmission mechanism 6. To do.

Problems to be Solved by the Invention However, in the above-described configuration, the sound generated from the drive-related components such as the motor 7 and the transmission mechanism portion 6 or the vibration generated from the laundry receiving tub 4 at the time of washing or dehydration. The internal sound of the main body 1 propagates to the outside of the main body 1 through the gap between the opening of the bottom of the main body 1 and the leg 12, that is, between the bottom of the main body and the installation surface, and has a drawback that the noise level is significantly increased. It was
Therefore, as a means for solving this, by extending the main body 1 and shortening the legs 12 to reduce the gap between the bottom of the main body and the installation surface, the internal sound of the main body 1 is blocked and the noise level is lowered. However, in this configuration, the main body 1
If there is unevenness on the installation surface, the installation is not possible and the workability deteriorates because the operator's toes do not enter between the legs 12 of the main body 1 at the time of washing work, which is not an effective means. There is also a method of sound insulation by eliminating the opening at the bottom of the main body, but as described above, when transporting the washing machine,
Since the washing tank 4 is fixed to the packing material by the transfer fitting 13,
There is also a problem that the opening cannot be eliminated.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a washing machine that reduces the noise level during washing and dehydration and does not adversely affect the installation and operability.

Means for Solving the Problems In order to achieve this object, a washing machine of the present invention has a main body having an opening for communicating the inside and the outside with a bottom portion, and a washing machine suspended in the main body via a vibration isolation mechanism. A receiving tub, a washing / dehydrating tub having a stirring blade disposed in the washing receiving tub, a motor for driving the washing / dehydrating tub and the stirring wing, and a bottom portion of the main body provided between the bottom portion and the installation surface. And a leg for setting an interval, and at the bottom of the main body, an elastic sound insulation member is provided so as to substantially close the space between the installation surface and the opening, and the elastic sound insulation member is bent. It is shaped like a bellows or bellows.

With this configuration, the sound insulation member provided on the bottom of the main body insulates the sound generated inside the main body such as the sound generated from the driving parts such as the motor during washing or dehydration and the sound generated from the vibration of the washing tub. Therefore, the noise level is significantly reduced. In addition, even if the installation surface is uneven, the sound insulation member is bent or accordion-shaped and can be expanded and contracted, so that the same installability as that of a conventional washing machine can be obtained. The operator's toes can be inserted between the installation surface and the installation surface, and operability during movement does not deteriorate as compared with the conventional case.

Embodiment An 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 same main part. In the figure, 1 to 14 are the same as the members of the conventional example shown in FIG. 6, and therefore their explanations are omitted. Reference numeral 15 denotes a plate-shaped sound insulation member attached to the bottom of the main body 1, and is made of, for example, a resin material such as polypropylene in a bellows shape and is expandable and contractible. In this embodiment, four sound insulating members 15 are provided between the four legs 12 of the main body 1, and the bottom of the main body 1 and the installation surface are installed.
It blocks 14 spaces. The sound insulation member 5 may be formed by integrally connecting four sheets.

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

The washing and dewatering operations are performed by transmitting the rotation of the motor 7 to the stirring blade 5 or the washing / dehydrating tub 2 via the transmission mechanism section 6 as in the conventional example. At this time, the motor 7 and the transmission mechanism 6
Noise level that internal sound of the main body 1 such as sound generated from the relationship of drive parts and sound generated from vibration of the washing tub 4 propagates to the outside from the opening of the main body 1 and the gap between the legs 12. However, in this embodiment,
A sound insulation member 15 provided at the bottom of the main body 1 insulates these internal sounds to significantly reduce the noise level. Further, even if the installation surface 14 has some irregularities, it can be installed by the expansion and contraction action of the bellows-shaped sound insulation member 15, and the sound insulation member 15 bends in accordance with the installation surface, so that the sound insulation characteristics do not deteriorate so much. Furthermore, since the sound insulation member 15 has a bellows shape, the toes can be inserted between the legs 12 of the main body 1 while pressing the sound insulation member 15, so that the operability of the washing movement work is not impaired. Further, the sound insulation member 15 pushed by the toes is elastic to itself and gradually returns to the original position, so that the sound insulation is not deteriorated even if the toes are removed. In addition, by forming the sound insulation member 15 into a bellows shape, it is easy to give elasticity even to a material having a small elasticity, and not to mention rubber and metal,
Even a hard resin or the like can be used as the sound insulation member 15 with elasticity. Further, when transporting the washing machine, in order to prevent the main body 1 and the laundry receiving tub 4 from colliding with each other, the upper part is held by the inner surface of the washing / dehydrating tub 2 at the time of packing and the lower part is a transfer metal fitting.
Although it has been conventionally performed to fix the laundry receiving tub 4 by holding it at the bottom of 13, in this embodiment, the bottom of the main body 1 has an opening like the conventional one, and the above conventional method can be used as it is. You can That is, packaging for transport requires little modification of conventional designs.

FIG. 3 is a sectional view of a main part of a washing machine showing a second embodiment of the present invention, and FIG. 4 is a perspective view of the main part. Reference numeral 16 denotes a bottom plate, which is attached to the bottom portion of the main body 1, and a communication hole 17 for communicating the inside and outside of the main body is formed in the center of the bottom plate 16. Reference numeral 18 denotes an expandable and contractible sound insulating member having a cylindrical bellows shape, which is attached around the communication hole 17.

With the above-described structure, the same effect as in the first embodiment can be obtained, and the circumference of the legs 12 of the main body 1 is almost the same as the current one, so that the operability and design of the operator feel uncomfortable. There is no.

Although the bellows-shaped sound insulating members 15 and 18 are used in the present embodiment, the sound insulating member 19 may be expanded and contracted as a folded shape of about two folds as shown in FIG. Further, in the present embodiment, the lower ends of the sound insulation members 15, 18, 19 are in contact with the installation surface 14, but there may be a gap between the sound insulation members 15, 18, 19 and the installation surface 14.

EFFECTS OF THE INVENTION As described above, the present invention provides a stretchable sound insulating member that is bent or accordion-shaped from the main body between the main body of the washing machine and the installation surface, and uses the sound insulating member to separate the interior and exterior of the main body. By eliminating communication, sound inside the main body such as noise generated from driving parts such as motors during washing or dehydration and sound generated from vibration of washing tub etc. is shut off, so the noise level is significantly reduced. In addition, it can be installed even if there is some unevenness on the installation surface, and the sound insulation does not deteriorate much. In addition, since the operator's toe can be inserted between the main body and the installation surface, the operability during movement is the same as in the past. In addition, even materials that are not usually elastic can be used by making them bent or bellows,
The sound insulation is easy to improve, the number of parts required for the configuration is small, the cost is low, the mass productivity is good, and the conventional packing method does not need to be changed, and the practical effect is great.

[Brief description of drawings]

FIG. 1 is a sectional view of a washing machine in a first embodiment of the present invention, FIG. 2 is a perspective view of the same main portion, and FIG. 3 is a sectional view of a main portion of a washing machine in a second embodiment of the present invention. FIG. 4 is a perspective view of a main part of the same, FIG. 5 is a cross-sectional view of a main part of a washing machine in another embodiment, and FIG. 6 is a cross-sectional view of a conventional washing machine. 1 ... Main body, 2 ... Washing / dehydrating tank, 4 ... Washing tank, 5
…… Stirring blade, 7 …… Motor, 11 …… Vibration isolation mechanism, 12 ……
Legs, 15, 18, 19 ... Sound insulation members.

Claims (1)

[Claims] 1. A washing machine having an opening for communicating the inside and the outside formed in the bottom, a washing tub suspended and supported by a vibration proof mechanism in the body, and a washing wing arranged in the washing tub and having stirring blades. It also has a combined dehydration tub, a motor that drives these washing and dehydration tub and stirring blades, and a leg that is provided at the bottom of the main body and that sets a distance between the bottom and the installation surface.
A washing machine in which an elastic sound insulation member is provided so as to substantially close the space between the installation surface and the opening, and the elastic sound insulation member is formed in a bent shape or a bellows shape.