JP2002273256A - Water tank body for waste water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water tank body for waste water which is equipped with a garbage disposal machine having a function to sufficiently suppress vibration and noise and to provide the water tank body for waste water which hardly gives rise to dew condensation on the outer peripheral surface of a metallic receiving tank. SOLUTION: This water tank body 4 for waste water is fitted with the garbage disposal machine 15 which is formed by laminating a flexible resin sheet 2 containing a high specific gravity component of preferably <=10 MN/m<2> at around atmosphere temperature in 20% modulus on the outer peripheral surface of the metallic receiving tank 1 from its bottom through its corners R nearly to its apex and bonding and laminating a polyolefinic foamed sheet 3 of 25 to 50 times in expansion magnification and is equipped with a mechanism of crushing the garbage by a rotary blade by transmission of rotational driving force in a drain hole 6 segment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage tank such as a sink, and more particularly, to a drainage tank attached to water or a drainage tank by a flexible resin sheet laminated on an outer peripheral surface of a metal receiving tank. The present invention relates to a drainage water tank in which generation of vibration and noise caused by a garbage disposal machine or the like is suppressed.

[0002]

2. Description of the Related Art Conventionally, metal materials such as stainless steel have been widely used for a water receiving tank of a drainage tank such as a sink, and it has been desired to suppress noise caused by water and the like. For example, in addition to the impact noise generated when water falls from the callan into the sink of the sink, that is, the sink tank, there is also a case where tableware comes into contact with the inside of the sink tank to generate vibration. Stainless steel sink tanks in sinks are usually thin,
These impulsive sounds and vibrations may resonate and resonate greatly with the thin stainless steel plate, resulting in harsh noise.

[0003] In order to suppress the generation of this kind of noise, for example, Japanese Utility Model Publication No. 7-28215 discloses that a vibration-proof elastic sheet such as a vibration-proof rubber is adhered and laminated on the outer surface of a stainless steel sink tank of a sink. Is disclosed.

[0004] However, the technique disclosed in the above publication has a drawback that the vibration-proof elastic sheet is heavy and easily peels off from the outer surface of the sink tank. The anti-vibration elastic sheet is held by the close contact with the sink tank or the like of the dew condensation preventing cover.

In fact, as shown in FIG. 6, an anti-condensation cover made of a foamed urethane resin or the like is provided on the entire bottom surface of a vibration-proof elastic sheet 22 with an adhesive 25, as shown in FIG. A sink 24 is disclosed in which the dew condensation preventing cover 23 is in close contact with the center of the side wall via the corner r of the sink tank 21 while being covered by the sink 23.

[0006]

According to the study of the present inventors, since a commercially available elastic rubber sheet for vibration damping is heavy and strong in elasticity, when it is glued and laminated on a sink tank of a sink, the corner portion ( Even if it is attempted to adhere along the shape of a curved surface portion having a small radius of curvature), the elastic rubber sheet alone is easily peeled off due to the repulsive force based on its elasticity, and of course, prevents condensation formed of urethane foam resin or the like disclosed in the above-mentioned publication. Even when covered by the cover and brought into close contact with the center of the side wall of the sink tank, there is a strong possibility that the cover will be separated from the sink tank and detached.

On the other hand, in recent years, it has been widely attempted to attach a garbage disposal machine to a sink or the like in order to reduce the amount of garbage discharged from each household. From the viewpoints of cost and simplicity of disposal work, etc. The thing which attaches a garbage disposal machine to the drain hole of a sink is often used. In this case, for example, the vibration of the rotating blade driven by the motor and the vibration generated at the time of garbage crushing become the vibration of the garbage disposal machine body, and this vibration may propagate to the sink tank top plate and cause resonance in the entire sink tank. In addition to the impact noise, it is required to suppress and reduce the generation of vibration and noise in such a water tank for drainage.

In the vibration-absorbing elastic rubber sheet disclosed in the above-mentioned publication, vibrations caused by water and garbage disposal in a sink are reduced.
Even if noise is to be suppressed, the vibration-absorbing elastic rubber sheet can be substantially laminated only on the bottom lower surface (that is, the flat portion) of the think tank, and is not laminated on the outer periphery including the corner portion. It was not possible to prevent the vibration caused by the vibration from being transmitted to the top plate of the think tank, and as a result, the effect of suppressing vibration and noise was hardly exhibited.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problem of the technology of suppressing the generation of noise and vibration in a conventional sink, etc.
An object of the present invention is to provide a drainage tank provided with a garbage disposal machine having a sufficient noise suppression function. Another object of the present invention is to provide a drainage tank in which dew condensation hardly occurs on the outer peripheral surface of the metal water receiving tank.

[0010]

In order to achieve the above-mentioned object, the invention according to claim 1 includes a high specific gravity component from a bottom portion of a peripheral surface of a metal water receiving tank to a substantially top portion through a corner portion. Garbage disposal in which a flexible resin sheet to be laminated is laminated and a mechanism for crushing garbage by a rotary blade or a reciprocating blade by transmission of a rotational driving force is provided in a drain hole provided at the bottom of the metal water receiving tank. Provided is a drainage tank body to which a machine is attached. According to a second aspect of the present invention, there is provided the drainage tank according to the first aspect, wherein a 20% modulus of the flexible resin sheet containing a high specific gravity component is 10 MN / m ² or less near normal temperature.

According to a third aspect of the present invention, a flexible resin sheet containing a high specific gravity component is partially laminated on 40 to 60% of the outer peripheral surface of the metal water receiving tank excluding the top plate. Or a drainage tank according to 2 above. The invention according to claim 4 is that, from the outside of the flexible resin sheet containing the high specific gravity component, the synthetic resin foam sheet contains the high specific gravity component over substantially the entire outer peripheral surface of the metal water receiving tank except for the top plate. The drainage tank according to any one of claims 1 to 3, which is laminated so as to cover with or without a flexible resin sheet.

According to a fifth aspect of the present invention, there is provided the drainage tank according to the fourth aspect, wherein the synthetic resin foam sheet is a polyolefin foam sheet having an expansion ratio of 25 to 50 times.

Hereinafter, the present invention will be described in more detail. The flexible resin sheet laminated from the bottom of the outer peripheral surface of the metal water receiving tank of the drainage tank of the present invention to almost the top through the corner portion through the corner portion has flexibility while containing a high specific gravity component. Therefore, a so-called vibration damping action for suppressing vibration is exhibited.

As the high specific gravity component, those having a specific gravity of 2.0 or more are usually used, for example, metal oxides such as iron oxide, titanium oxide and magnesium oxide; particulate metals;
In addition to mineral-based pulverized materials such as talc, mica, and quartz powder, glass fibers, glass powder, calcium carbonate, gypsum, and the like can be given. Among them, mica (specific gravity of about 2.85) and calcium carbonate (specific gravity of about 2.85) are particularly preferred in terms of vibration damping characteristics and cost.
7) is preferred.

Examples of the flexible resin sheet containing a high specific gravity component include a resin sheet composed of a resin composition in which an elastomer, a thermoplastic resin, and an inorganic powder as a high specific gravity component are blended, In addition, petroleum resin, other materials, for example, as required, asphalt, heat stabilizer, weather resistance improver, lubricant, processing aid, pigment, a resin sheet comprising a resin composition in which a coloring agent and the like are blended. No. A preferred elastomer is a styrene-isoprene block copolymer, a preferred thermoplastic resin is an ethylene-vinyl acetate copolymer, and a preferred petroleum resin is a C9 petroleum resin. C9-based petroleum resin is preferable in that it improves the adhesiveness to a metal water receiving tank and improves the fluidity during molding.

Specific preferred resin sheets include, for example, styrene-isoprene block copolymer 100
Parts by weight, ethylene / vinyl acetate copolymer 20 to 1000
Parts by weight and a resin composition containing 200 to 1000 parts by weight of a high specific gravity inorganic powder, 100 parts by weight of a styrene / isoprene block copolymer, 10 to 500 parts by weight of an ethylene / vinyl acetate copolymer, 10 to 500 parts of a petroleum resin Parts by weight, and mica or calcium carbonate 250-100
And a resin sheet formed from a resin composition containing 0 parts by weight.

The molecular weight of the above block copolymer is 3
It is preferably from 000 to 300,000, more preferably from 80,000 to 250,000. Molecular weight 3
If it is less than 000, the mechanical properties such as strength at break and elongation at break of the block copolymer itself may decrease. On the other hand, if the molecular weight exceeds 300,000, it becomes difficult to mix with the inorganic powder.

The ethylene / vinyl acetate copolymer is preferably one having a vinyl acetate content of 2 to 50% by weight. If the vinyl acetate content is less than 2% by weight, the flexibility of the obtained sheet may be insufficient, and if it exceeds 50% by weight, the resin composition has tackiness. Release processing may be required.

A flexible resin sheet containing a high specific gravity component has a modulus at 20% elongation and deformation of about 1 at room temperature.
It is preferably 0 MN / m ² or less. If the modulus at the time of the 20% elongation deformation exceeds 10 MN / m ² , the rigidity of the sheet becomes too high. For example, when the sheet is laminated on the outer surface of a sink tank of a sink, the shape of the corner portion (curved surface portion having a small radius of curvature) is used. When the sheet is adhered along the corner, it may not be able to follow the shape of the corner portion, which may cause the sheet to peel off. The 20% modulus is based on JIS
It is a value measured based on the low deformation tensile test in K6254.

In consideration of such shape followability to the corner of the think tank, the thickness of the flexible resin sheet containing the high specific gravity component is preferably 6 mm or less, more preferably 3 mm or less. For laminating the flexible resin sheet and a metal water receiving tank made of stainless steel or the like, an adhesive or an adhesive is usually used. After applying the adhesive to the metal water receiving tank, the flexible resin sheet is pressure-bonded to the adhesive applied surface, dried and cured, whereby a laminate of the resin sheet and the metal water receiving tank can be obtained. As the adhesive used for this lamination, a rubber-based solvent-based adhesive, a two-pack type epoxy adhesive or a urethane-based adhesive can be used, and particularly, a chloroprene-based rubber solvent-based adhesive is preferable. .

The synthetic resin foam sheet laminated on the outer side of the flexible resin sheet and used for preventing dew condensation is preferably a polyethylene foam having an expansion ratio of 25 to 50 in view of excellent heat insulating properties. A 30 to 40 times polyethylene foam is more preferred. When the expansion ratio is small, sufficient heat insulating performance cannot be obtained, and when the expansion ratio is large, the mechanical strength decreases.

Next, for example, a flexible resin sheet and a synthetic resin foam sheet are bonded in advance by a heat laminating machine via an adhesive to form a laminate, and the flexible resin sheet side of the laminate is made of chloroprene. Using a solvent-based adhesive or an acrylic adhesive, etc., from the bottom of the sink tank to almost the top through the corners, that is, on the outer peripheral surface of almost the entire surface of the sink tank except for the top plate, even if it is laminated and laminated. Good.

The water tank for drainage of the present invention usually comprises
A garbage disposer is attached to the drainage hole provided at the bottom of the metal water receiving tank, and is completed. Further, as described above, the flexible resin sheet used for the water tank body for drainage of the present invention may be, for example, 100 parts by weight of a styrene-isoprene block copolymer, an ethylene-vinyl acetate copolymer 20-1.
Styrene and isoprene block copolymer 100 parts by weight, ethylene-vinyl acetate copolymer 10-500 parts by weight, petroleum resin 10 500
Parts by weight, and mica or calcium carbonate 250-1
A resin sheet formed from a resin composition containing 000 parts by weight is preferred.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an example of a state of a water tank for drainage of the present invention before a garbage disposal machine is attached, and a stainless steel sink tank 1 as a metal water receiving tank.
Flexible resin sheet 2 containing a high specific gravity component on the outer peripheral surface of
Are shown, and a drain tank 4 ′ is further formed by laminating a synthetic resin foam sheet 3 on the outside, and 6 is a drain hole. FIG. 2 is an enlarged bottom view of FIG. 1 for clearly showing the state of lamination of the flexible resin sheet 2 on the sink tank 1.

The flexible resin sheet 2 includes a corner portion R from the bottom of the outer peripheral surface of the sink tank 1 through the adhesive 5 and substantially the upper limit in the height direction of the side wall 11, that is, immediately before the top plate 12 of the sink tank. The synthetic resin foam sheet 3 is laminated on the entire periphery of the flexible resin sheet 2 via the adhesive 7, but is not directly adhered to the outer peripheral surface of the sink tank 1.

When the flexible resin sheet 2 is to be laminated on almost the entire outer peripheral surface of the sink tank 1, a laminate 9 of the flexible resin sheet 2 and the synthetic resin foam sheet 3 must be prepared in advance due to the method of manufacturing the drainage tank. Then, it is preferable to laminate the laminated body 9 on the sink tank 1 obtained by pressing a stainless steel plate. However, as will be described later, the flexible resin sheet 2 does not necessarily need to be laminated over almost the entire outer peripheral surface of the sink tank 1, but is laminated from the bottom of the outer peripheral surface of the sink tank 1 to almost the top via a corner. If there is a part, it may be a partial lamination, for example, top plate 1
Approximately 40% of the surface area of the outer peripheral surface of the think tank 1 excluding 2
It is preferable to laminate at 60% in view of the balance between the cost and the effect of suppressing vibration and noise.

The synthetic resin foam sheet 3 is preferably laminated on the outside of the flexible resin sheet 2 to prevent dew condensation. For example, when there is no fear of dew condensation,
It is not necessary to use it.

The flexible resin sheet 2 has, in particular, 20%
The modulus during elongation deformation is 10 MN / m ² around room temperature
The following is preferable because, for example, the shape followability to the corner portion (curved portion having a small radius of curvature) of the sink tank of the sink is good.

Next, FIG. 3 is a sectional view of a main part showing an example of the drainage tank 4 of the present invention in which a garbage disposal machine is attached to the drainage tank 4 'in the state of FIG. The same reference numerals are used for the flexible resin sheet 2, the synthetic resin foam sheet 3 and the adhesive 5 as in FIG. 1, but the adhesive 7 in FIG. The state of being stacked up to immediately before (immediately below) 12 is also not shown.

In the garbage disposer 15, the rotating blades connected to the rotating shaft of the motor 13 rotate in the garbage crushing chamber 14 to crush the garbage introduced from the drain hole 6 together with tap water.
A mechanism for discharging the crushed material to the outside via a drain pipe 20 is provided, and is attached to a drain hole 19 of a sink tank via a mounting spring 16 and mounting flanges 17 and 18. Note that the sink tank 1 is not necessarily in the shape of a rectangular parallelepiped, and the drain hole 19 need not necessarily be provided in the center of the sink tank 1.

When the garbage disposer 15 having such a configuration is used, the vibration caused by the rotation of the motor 13 and the vibration caused by the crushing of the garbage are generated by the garbage crushing chamber 14 and the sink tanks 17 and 18. Although transmitted to the whole, the flexible resin sheet 2 is laminated on the outer peripheral surface including the corner portion R from the bottom of the think tank 1, so that this vibration is greatly reduced and almost no sound is generated. ing.

The garbage disposal machine does not necessarily need to be equipped with a rotary blade. For example, a garbage crusher may be crushed by a reciprocating blade. Therefore, it is necessary to provide a mechanism for crushing garbage by a rotary blade or a reciprocating blade by transmitting a rotational driving force. For example, a disk-shaped turntable connected to the rotating shaft of the motor 13 rotates in the polishing chamber 14 and crushes garbage by a crushing hammer (not shown) attached to the turntable. Good.

In the drainage tank 4 of the present invention in which the garbage disposal unit 15 is attached to the drain hole, the vibration generated by the garbage disposal unit and the like propagates to the top plate 12 of the sink tank. To prevent this, the flexible resin sheet 2 containing the high specific gravity component is laminated, for example, from the bottom of the outer peripheral surface of the sink tank 1 to almost the top via the corner R, that is, immediately before the top plate 12 of the sink tank. Need to be.

However, it is not always necessary to laminate the flexible resin sheet 2 over substantially the entire outer peripheral surface of the think tank 1, for example, as shown schematically in FIG.
A plurality of flexible resin sheets 2 may be laminated at intervals from the bottom of the outer peripheral surface of the think tank 1 to the top almost through the corner R. FIG. 5 is a perspective view schematically showing an example of the positional relationship between a flexible resin sheet and a synthetic resin foam sheet laminated on the drainage tank body. Specifically, FIG.
Three flexible resin sheets 2 each having a width of about 50 mm are laminated on two long sides facing each other through the corner R from the bottom of the outer peripheral surface of the think tank 1 through the corner R. After one flexible resin sheet 2 having a width of about 60 mm is laminated on the short side wall of the
Is shown (or a state observed through seeing through).

The laminating / sticking area of the flexible resin sheet 2 is as follows:
About 40% to 6 of the outer peripheral surface of the think tank 1 excluding the top plate 12
0%. Normally, if the flexible resin sheet 2 is partially laminated on about 40% to 60% of the surface area of the outer peripheral surface of the sink tank 1 excluding the top plate 12, a substantially satisfactory vibration damping action is exhibited, and more than that. When the flexible resin sheet 2 is laminated over the area of the above, the vibration preventing effect is increased, but the rate of increase is slightly reduced.

However, even when the flexible resin sheet 2 is partially laminated, the synthetic resin foam sheet used for preventing dew condensation is provided from the outside of the flexible resin sheet 2 to the metal water receiving tank. It is preferable to laminate so as to cover almost the entire outer peripheral surface except for the top plate with or without a flexible resin sheet. Therefore, in this case, the sink tank 1 on which the flexible resin sheet 2 is not laminated is preferably used. The synthetic resin foam sheet 3 is directly laminated on the portion of the outer peripheral surface of.

When the flexible resin sheet 2 is partially laminated on the outer peripheral surface of the sink tank 1, only the flexible resin sheet 2 is laminated on the sink tank 1 due to the method of manufacturing the drainage tank body. A synthetic resin foam sheet with a pressure-sensitive adhesive or an adhesive formed in the shape of the outer peripheral surface is laminated on almost the entire outer peripheral surface of the sink tank 1 together with the flexible resin sheet so as to cover from the outside of the flexible resin sheet. Is preferred.

(Example 1) A water tank 4 for drainage shown in FIG. 1 was manufactured, and the occurrence of noise and the like was confirmed. [Production of flexible resin sheet] Styrene-isoprene block copolymer ("HIBLER" manufactured by Kuraray Co., Ltd., molecular weight of about 1)
40,000) 100 parts by weight, ethylene-vinyl acetate copolymer (vinyl acetate content 30% by weight) 100 parts by weight, and calcium carbonate (average particle size 2 μm) as an inorganic powder.
m, specific gravity 2.7) 200 parts by weight and mica (100 mesh pass, specific gravity 2.85) 150 parts by weight were supplied to an extruder and heated and kneaded to obtain a resin composition having a specific gravity of 1.
8, a flexible resin sheet 2 having a thickness of 1 mm and a width of 100 mm and containing a high specific gravity component was extruded.

Regarding the flexible resin sheet, JIS K
A low deformation tensile test was performed in accordance with 6254 (established in 1993), and the modulus at the time of 20% elongation deformation was 2.3 MN / m ² .

[Production of Laminated Sheet] Next, a 4 mm thick, 50 mm wide coated with the solvent type chloroprene rubber-based adhesive 7 was applied.
The flexible resin sheet 2 having a width of 100 mm was laminated on a 0 mm polyethylene resin foam sheet (“Taika Softlon” manufactured by Sekisui Chemical Co., Ltd., expansion ratio 30 times) 3 and wound into a roll (as a roll). . Specifically, using an infrared lamp (or a burner), the laminating surface temperature of the flexible resin sheet 2 is set to 100 to 140 ° C., and the surface of the polyethylene resin foam sheet as the synthetic resin foam sheet 3 (adhesive coated surface) After heating so that the temperature would be 80 to 120 ° C., they were brought into contact with each other, laminated and laminated to obtain a laminated sheet 9.

[Preparation and Evaluation of Drainage Water Tank Body] The above-mentioned laminated sheet was applied to a sink tank 1 obtained by pressing a stainless steel plate (SUS304, thickness 0.8 mm) using a solvent-type chloroprene rubber-based adhesive 7. 9 as shown in FIG.
A garbage disposer 15 having a weight of about 10 kg as shown in FIG. 4 is provided on a sink tank in which the flexible resin sheet 2 is attached and laminated immediately before (directly below) the top plate 12 as shown in FIG. 19, a water tank body for drainage was produced, and its vibration / noise generation status and the like were confirmed.

Modulus at 20% elongation deformation is 2.3M
The laminated sheet 9 formed by laminating N / m ² flexible resin sheets follows the corner R of the think tank 1 well,
There was no peeling or unnatural deformation. The obtained water tank for drainage was used for one week. In particular, the sink tank made of stainless steel did not resonate greatly and the generated sound was greatly reduced. That is, when the motor 13 is rotated (the number of rotations is about 4000
(rpm), the vibration caused by the rotation of the motor and the vibration caused by the crushing of the dust are transmitted to the sink tank, and the vibration of the top plate and other parts of the sink tank are suppressed. The impact noise when the water fell and the noise of tableware coming into contact with the inside of the think tank were significantly reduced, and almost no vibration or noise was generated.

[0043]

According to the drainage tank of the present invention, a flexible resin sheet containing a high specific gravity component is laminated from the bottom of the outer peripheral surface of the metal receiving tank through the corner to almost the top. In the drainage hole provided at the bottom of the water receiving tank,
Since a garbage disposal machine equipped with a mechanism for crushing garbage by a rotary blade or a reciprocating blade by transmitting a rotational driving force is attached, the following excellent vibration and noise suppression functions are exhibited. In other words, not only is it convenient to process garbage, but also the vibration and noise associated with garbage disposal, the impact sound when water falls from the curan into the sink tank, and the sound of tableware contacting inside the sink tank, etc. This can be said to be a drainage water tank body which is significantly reduced and hardly generates vibration and noise.

When the 20% modulus of the flexible resin sheet containing the high specific gravity component is 10 MN / m ² or less at around room temperature, the flexible resin sheet is particularly placed almost at the top through the bottom of the metal water receiving tank. Over the entire circumference, the above-mentioned effect is ensured. When the flexible resin sheet containing the high specific gravity component is partially laminated on 40 to 60% of the outer peripheral surface of the metal water receiving tank excluding the top plate, the amount of the flexible resin sheet, that is, the cost, is used. This is preferable in that the balance between the vibration and noise suppression effects is achieved.

Also, from the outside of the flexible resin sheet containing the high specific gravity component, the synthetic resin foam sheet covers almost the entire outer peripheral surface of the metal water receiving tank except for the top plate, and the flexible resin sheet containing the high specific gravity component contains the high specific gravity component. When a synthetic resin foam sheet is laminated on the outside of a flexible resin sheet containing a high specific gravity component which is laminated so as to be covered with or without a resin sheet, due to the heat insulating property of the synthetic resin foam sheet, Dew condensation hardly occurs in the metal water receiving tank. In addition, when the synthetic resin foam sheet is a polyolefin foam sheet having an expansion ratio of 25 to 50 times, it has particularly excellent heat insulation properties and exhibits a higher dew condensation preventing function.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of a state before mounting a garbage disposal machine on a water tank body for drainage of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a cross-sectional view of a main part showing an example of a drainage tank body of the present invention to which a garbage disposal machine is attached.

FIG. 4 is a perspective view showing an example of a garbage disposal machine used in the present invention, together with a virtual think tank.

FIG. 5 is a perspective view schematically showing an example of the positional relationship between a flexible resin sheet and a synthetic resin foam sheet laminated on the drainage tank of the present invention.

FIG. 6 is a cross-sectional view illustrating an example of a conventional water tank for drainage.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Metal water receiving tank (sink tank) 2 ... Flexible resin sheet containing a high specific gravity component 3 ... Synthetic resin foam sheet 4 '... Drainage water tank before attaching garbage disposal machine Body 4 ... Water tank body for drainage 5 ... Adhesive (adhesive) 6 ... Drain hole 7 ... Adhesive (adhesive) 9 ... Laminated body 11 ... Side tank side wall 12 ... Top plate of think tank 15 ... garbage processing machine

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D061 BA04 BB05 BC02 BC03 BC16 DA03 DE23 4D065 CA01 CA05 EB17 ED41

Claims (5)

[Claims] 1. A flexible resin sheet containing a high specific gravity component is laminated from a bottom portion of an outer peripheral surface of a metal water receiving tank to a substantially top portion via a corner portion, and provided on a bottom portion of the metal water receiving tank. A garbage disposer having a mechanism for crushing garbage by a rotary blade or a reciprocating blade by transmitting a rotational driving force is attached to the drain hole. 2. The drainage tank according to claim 1, wherein the flexible resin sheet containing the high specific gravity component has a 20% modulus of 10 MN / m ² or less near normal temperature. 3. The flexible resin sheet containing a high specific gravity component is 40 to 60% of the outer peripheral surface of the metal water receiving tank excluding the top plate.
The drainage tank according to claim 1, wherein the tank is partially laminated. 4. A flexible resin sheet containing a high specific gravity component covers a substantially entire surface of an outer peripheral surface of a metal water receiving tank except for a top plate from the outside of a flexible resin sheet containing a high specific gravity component. The drainage tank according to any one of claims 1 to 3, wherein the tank is laminated so as to be coated with or without a resin sheet. 5. A synthetic resin foam sheet having an expansion ratio of 25 to 25.
The water tank for drainage according to claim 4, which is a 50-fold polyolefin foam sheet.