JPH0551951A - Sink device - Google Patents

Abstract

PURPOSE:To suppress noises by installing a damping material onto the external surface of a sink made of a metal in a striped shape and specifying the area of installation. CONSTITUTION:A pectinate damping material composed of an ethylene vinyl acetate resin, etc., is formed. A pectinate connecting section 16 is stuck onto the front 17 of the outside of a sink 11 and tooth sections in a striped shape extending over a rear face from a base 18. The first-fifth surfaces of sink surfaces including a vibration source are used as damping-material stuck surfaces as required, and approximately ten-fifty % of each of sink constituting surfaces is employed as the area of the damping material. The outside of the sink 11, on which the damping material 15 is stuck, may be covered with a dew condensation preventive material consisting of foamed polyethylene, etc. Accordingly, noises can be reduced largely while a deep tone color can be produced, and the damping material can be economized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sink device such as a system kitchen.

[0002]

2. Description of the Related Art A conventional sink device only covers the outside of a sink with an anti-condensation material such as urethane foam or polyethylene foam, and a viscoelastic resin is used to suppress vibration and noise generated in the sink. A method has been proposed in which a sandwich-type damping steel sheet sandwiched between steel sheets is used to press-mold a sink, or a flat damping material is attached to the bottom surface of the sink.

[0003]

However, with the anti-condensation material coated on the sink as described above, it is not possible to sufficiently expect the viscoelastic effect, the mass effect, etc. for suppressing the vibration, and therefore the faucet. It was impossible to reduce the vibration of the sink caused by water falling from the sink into the sink, and the noise induced thereby.

On the other hand, in the proposal using the above-mentioned sandwich type damping steel plate, this steel plate cannot be deep-drawing pressed like a sink, or cannot be welded because resin is interposed, resulting in high cost. There are many problems left.

When a flat plate-shaped damping material is attached to the bottom surface of the sink, vibration and noise can be reduced by attaching it to a part of the bottom surface, but there is a vibration source at a location away from the location where the damping material is attached. In some cases the effect was diminished.

The present invention solves such a problem by suppressing vibration caused by water or the like falling from a faucet to a sink, and causing incidental noise to be generated at any place in the sink. The purpose is also to reduce.

[0007]

A sink of a sink device according to the present invention comprises a damping material having a damping effect on the outer wall of the surface constituting the sink, such as an acrylic resin having viscoelasticity and an ethylene vinyl acetate containing a filler. By attaching polymerized resin, butyl rubber, rubber-asphalt composite, resin-metal composite restraint plate, vibration-damping material with sound-absorbing material, etc. It is intended to suppress the generated vibration and noise, and in particular, the damping material is attached to the outer wall of the sink in a striped pattern.

[0008]

In the sink for a sink device of the present invention, a damping material is attached to the surface constituting the sink in a striped pattern, and the damping material prevents the sink surface from being formed when water, dishes, etc. fall. It is possible to suppress the vibration and also the impact sound and noise generated from this surface. Since the vibration damping material can sufficiently exert the vibration damping effect when there is a vibration source near the mounting position, the vibration damping material has a stripe pattern on the outer wall of the surface constituting the sink as in the present invention. Even if the vibration source cannot be specified, the damping material can be always attached in the vicinity of the vibration damping source. Therefore, a stable vibration damping effect and noise reduction effect can always be obtained. In addition, the vibration of the bottom surface of the sink is also propagated to the horizontal surface of the sink, and vibration also occurs on the horizontal surface, so noise is generated. It is possible to mount it, suppress resonance and reverberation, and maximize its effect.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 2, 10 is the top of the sink,
A stainless steel sink 11 is attached from below.
A faucet 12 is attached to the top 10 behind the sink 11, and a DC / shower switching type faucet 13 is rotatably exposed above the sink. Reference numeral 14 is a drain port in the sink 11. A vibration damping material 15 in the shape of a comb is attached to the sink 11 from the back surface with an adhesive material. The comb-teeth connecting portion 16 is attached to the wall of the sink front surface 17, and the portion corresponding to the teeth is attached in a stripe shape from the front-side connecting portion 16 through the bottom surface 18 to the rear surface 19. Here, as the damping material 15, an ethylene vinyl acetate-based or butyl rubber-based damping material was used.

In the above structure, the water flow from the faucet 13 falls onto the sink 11 at the position indicated by the alternate long and short dash line. The generation of noise is high, especially when used in a shower. Generally, it is not possible for each person to specify where in the sink 11 the work of washing dishes or the like is performed. In the washing work, noise is generated when water falls, and sounds such as dishes hitting the sink 11 are generated. The noise caused by water is magnified by not only the sound generated when the shower falls, but also the sound generated by the large drops of water dripping from the dishes during the washing operation. Therefore, as in the present embodiment, by attaching the damping material 15 to the sink 11 in a striped pattern, the damping material is always attached in a close position even if the source of vibration and noise is not specified. Therefore, it is possible to stably exert its vibration damping effect.

An example of the measurement is shown below. Table 1 shows tap 13
3 shows the result of measurement by changing the position arbitrarily on the alternate long and short dash line in FIG.

[0013]

[Table 1]

As shown in Table 1, when the damping material 15 was not attached, the value was 73 dB, but in the present embodiment, it was 69.5 dB regardless of the shower fall position. The noise was 70 dB when the rectangular damping material was pasted just below the shower drop position, and 71.5 dB when it was pasted near the shower drop position. When applied, the same effect was obtained, and a more excellent effect of not depending on the falling position of the shower could be added.

Table 2 shows the results of an experiment conducted under the same conditions as above, by changing the attachment area by changing the stripe width of the vibration damping material 15. The area of the damping material 15 is shown in% with respect to the low area of the sink.

[0016]

[Table 2]

From the results shown in Table 2, when the application area of the damping material 15 is 10% or less, the noise reduction effect is small, and the effect varies depending on the falling position of the shower, while when it is 50% or more, the application area is large. However, no further noise reduction effect was obtained. Therefore, 10% to 50% is suitable for the pasting area of the vibration damping material 15, and particularly 20% to 50% is desirable. Further, although the vibration of the bottom surface 18 may be propagated to the side surfaces to raise the noise level, as shown in FIG.
The damping material 15 was integrally attached to the bottom surface 18 and the rear surface 19 from 7 to prevent this.

In this embodiment, the noise generated from the sink 11 is reduced to about 3 by using the damping material 15 as described above.
Since it can be reduced by dB or more, and resonance is suppressed, an excellent effect such as a heavy tone color can be obtained.

When the damping material 15 is applied to the stripes, by forming the damping material in the shape of a comb as in this embodiment, the spacing between the stripes becomes constant and the damping and noise suppressing effects are stable. Could be obtained. On the other hand, a dew condensation preventing material such as urethane foam or polyethylene foam does not itself have a vibration damping effect, but since it is a foam resin, it has a sound absorbing effect. Therefore, damping material 1
By attaching 5 to the sink 11 and further covering it with the dew condensation preventing material 20, the sound absorbing effect of these foamed resins is utilized, the resonance of sound into the cabinet in which the sink 11 is mounted is suppressed, and the noise reducing effect is further enhanced. I was able to do it.

[0020]

As is apparent from the above description of the embodiments, according to the present invention, the damping material is attached to the outer wall of the sink in a striped pattern without specifying the location of vibration in the sink. The stable vibration damping effect and the noise suppressing effect can be obtained at any place, the noise generated in the shower or the washing work can be remarkably reduced, and the sound can have a heavy tone color. Even with a small amount of damping material, a sufficient effect can be exhibited, and the purpose can be achieved at a low price. Further, by attaching a vibration damping material and covering it with a foamed resin having a sound absorbing effect, resonance in the cabinet can be suppressed, so that a more excellent noise reducing effect can be exhibited.

[Brief description of drawings]

FIG. 1 is a rear view of a sink device showing an embodiment of the present invention.

FIG. 2 is a plan view of the same-flow device.

FIG. 3 is a front sectional view of the same-flow device.

[Explanation of symbols]

 11 Sink 15 Damping material 20 Dew condensation prevention material

Claims (4)

[Claims] 1. A sink device in which a damping material is attached in a striped pattern on an outer wall of a surface constituting a metal sink mounted on the sink device. 2. The sink device according to claim 1, wherein the vibration damping material is formed in a comb shape, and is attached over at least 1 to 5 surfaces of a surface including a vibration generation source and forming a sink. 3. The area of the vibration damping material attached to each surface constituting the sink is 1 of the area of each surface constituting the sink.
The sink device according to claim 1, wherein the sink device is mounted so as to occupy 0% to 50%. 4. The sink device according to claim 2, wherein the outer wall of the sink to which the damping material is attached is covered with a dew condensation preventing material.