JP2017190569A - Water stop structure for sink and spacer member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water stop structure for sink, which can increase degree of freedom for selecting a top board quality, and a spacer member used for the water stop structure.SOLUTION: A spacer member 5 is installed on a flange 1b that extends outward on an upper opening 1a of a sink 1. A space is formed between an upper surface of the flange 1b and undersurface of the top board 2 using the spacer member 5. Water is stopped by disposing a water stop material 6 in the space formed by the spacer member 5. The spacer member 5 has an installation part 5a having an installation groove 5c that is fitted to an inclined part 1e of outer periphery of the flange 1b of the sink, and a space forming part 5b, which protrudes from an upper tip of the installation part 5a toward the sink 1 side. The spacer member has at least the installation part 5a or the space formation part 5b, or a soft part 8 disposed on a section from the installation part 5a to the space formation part 5b or a hollow part.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a water stop structure in a sink installed on a counter such as a kitchen, and a spacer member used for the water stop structure.

  A kitchen or the like is provided with a sink made of stainless steel or the like and a top plate installed as a counter on the sink, and it is necessary to prevent water leakage from the gap between the sink flange and the top plate. For this reason, a water stop material is arrange | positioned between the flange of a sink and a top plate. As this water-stopping material, a silicon adhesive having followability and flexibility is used. There exists a thing of patent document 1 as a prior art example of the water stop structure which arrange | positions such a water stop material.

  As shown in FIG. 7A, the water stop structure described in Patent Document 1 is formed by processing a groove 31a for forming a water stop filling space on the lower surface of the opening edge of the top plate 31. Yes. And the groove | channel 31a is filled with the adhesive agent 32 as a water stop material, and the primary water stop structure from the clearance gap between the flange 33a provided in the opening edge of the sink 33 and the lower surface of the top plate 31 is implement | achieved. The groove 31a provided on the lower surface of the top plate 31 is filled with more adhesive 32 in the groove 31a than in the periphery of the groove 31a. As a result, the followability of the adhesive 32 on the lower surface in the vicinity of the opening of the top plate 31 is improved. As a result, the top plate 31 and the sink 33 can be joined more firmly, and the thickness of the adhesive 32 can be made thinner than before. .

  34 is a water stop material having elasticity made of rubber or the like interposed between the flange 33a and the top plate 31, and realizes a secondary water stop structure, and is fitted to the inclined portion 33b on the outer peripheral side of the flange 33a. Mounted. As shown in FIG. 7B, the main body 34a of the water blocking material 34 has a substantially uniform thickness, and the main body 34a has a mounting groove 34b that fits into the inclined portion 33b on the outer peripheral side of the flange 33a. Further, a soft portion 34d is formed in a rising shape on the upper surface portion 34c of the main body portion 34a. Further, the upper surface portion 34c has an extending portion 34e formed so as to protrude toward the sink side, and the extending portion 34e is deformed so as to follow the flange 33a by forming the thickness as thin as the sink side. It is configured to be easy to do.

  In the state before the water blocking material 34 is attached to the flange 33a, the back surface of the upper surface portion 34c, that is, the inner surface 34f of the mounting groove 34b is flat. However, as shown in FIG. 7A, in the state where the water blocking material 34 is attached to the flange 33a, the extending portion 34e is compressed, and the soft portion 34d is bent and contacts the lower surface of the top plate 31.

Japanese Patent Laying-Open No. 2015-117463

  In Patent Document 1, artificial marble is cited as an example of the material of the top plate 31. Artificial marble is a molding material molded using resin, reinforced fiber, or the like. In addition to artificial marble, ceramic is also used as the material for the top board. Compared to artificial marble, ceramic is hard to be damaged due to its high strength, and has high heat resistance, and it is easy to obtain high-quality dark colors and various colors, so there are many variations in appearance. It is an excellent material in terms of design. In view of this, it is conceivable to employ ceramic as the top plate material and adopt a structure in which the groove 31a for filling the adhesive 32 to the top plate 31 is processed as described in Patent Document 1. However, if grooving is performed on the ceramic as the top plate 31, the ceramic is likely to be damaged, such as cracks or chips, so it is difficult to use ceramic as the top plate 31 in the structure described in Patent Document 1. There is a problem that the degree of freedom in selecting the material of the top plate is small.

  An object of this invention is to provide the water stop structure of the sink which can expand the freedom degree of the choice of the material of a top plate, and the spacer member used for this water stop structure in view of the said problem.

The water stop structure of the sink of the present invention is a water stop structure of the sink that stops water leakage between the flange provided to the outside at the upper surface opening of the sink and the top plate disposed on the sink.
A spacer member mounted on the flange of the sink and forming a space on the upper surface opening side of the sink between the upper surface of the flange and the lower surface of the top plate;
A water-stopping material disposed in the space and closing the space is provided.

Moreover, the water stop structure of the sink of the present invention is the water stop structure of the sink,
The upper surface of the spacer member is provided with a soft portion that closes a space between the spacer member and the lower surface of the top plate.

Moreover, the water stop structure of the sink of the present invention is the water stop structure of the sink,
The lower surface of the spacer member facing the upper surface of the flange is provided with a soft portion that blocks between the spacer member and the flange.

The spacer member of the present invention is a spacer member that is attached to the flange of the sink and forms a space for disposing a primary water stop material between the upper surface of the flange and the lower surface of the top plate,
A mounting portion having a mounting groove fitted to the inclined portion of the outer periphery of the flange of the sink;
A space forming part formed to protrude from the tip of the upper part of the mounting part to the sink side,
As a secondary waterproofing material, at least a secondary waterproofing material that prevents water leakage between the spacer member and the top plate, the mounting part or the space forming part, or from the mounting part to the space forming part A soft part or a hollow part provided integrally is provided.

  In the present invention, a spacer member is interposed between the sink flange and the lower surface of the top plate, and the water stop material is disposed in the space formed on the upper surface opening side of the sink of the spacer member. It is not necessary to form a groove for arranging the water material. For this reason, it becomes possible to use the ceramic etc. which are hard to process, such as cutting, as a top plate, and the freedom degree of selection of the material of a top plate increases.

(A) is sectional drawing which shows one Embodiment of the water stop structure of the sink by this invention, (B) is sectional drawing of the spacer member used for this embodiment. It is a principal part expanded sectional view of FIG. It is a figure explaining the assembly process of the sink and top plate of this embodiment. It is sectional drawing which shows other embodiment of the water stop structure of the sink of this invention. It is sectional drawing of the spacer member used for the water stop structure of embodiment of FIG. It is sectional drawing which shows the other example of the spacer member used for the water stop structure of this invention. (A) is sectional drawing which shows the water stop structure of the conventional sink, (B) is sectional drawing which shows the conventional water stop material used for the secondary water stop structure.

  FIG. 1A is a cross-sectional view showing an embodiment of a water stop structure of a sink according to the present invention. Reference numeral 1 denotes a sink made of stainless steel or the like, and 2 denotes a top plate constituting a counter of a kitchen or the like. The sink 1 has a substantially rectangular container shape having an upper surface opening 1a, and has a flange 1b formed to extend outward around the upper surface opening 1a. The bottom plate portion 1c has a drain cylinder 1d.

  The top plate 2 is made of ceramic, for example, and has an opening 2 a having a size slightly larger than the opening 1 a corresponding to the upper surface opening 1 a of the sink 1. On the lower surface of the top plate 2, a reinforcing material such as a glass fiber 3 is provided to prevent breakage when the top plate 2 is bent and damage due to impact. 4 is a wooden reinforcing plate fixed to the lower surface of the top plate 2 by adhesion or the like for reinforcement. As the reinforcing plate 4, for example, a plywood or the like is used.

  Reference numeral 5 denotes a spacer member that is mounted over the entire circumference of the flange 1 b of the sink 1. As shown in FIG. 2, the spacer member 5 forms a space indicated by Δh between the upper surface of the flange 1 b and the lower surface of the top plate 2 on the upper surface opening 1 a side of the sink 1. The spacer member 5 is formed by molding a hard resin. As the spacer member 5, for example, hard silicon rubber or ethylene propylene rubber (EPDM) is used.

  Reference numeral 6 denotes a water stop material (primary water stop material). The water stop material 6 has a flange 1b and a top plate 2 in a space indicated by Δh formed between the upper surface of the flange 1b and the lower surface of the top plate 2. Between the two. As the water blocking material 6, for example, soft silicon rubber, ethylene propylene rubber, or the like can be used.

  As shown in FIG. 1 (B), the spacer member 5 includes a mounting portion 5a for mounting on the flange 1b of the sink 1, and a space forming portion provided at the tip of the mounting portion 5a so as to protrude toward the sink 1 side. 5b. The mounting portion 5a to the flange 1b has a mounting groove 5c so that the mounting portion 5a can be fitted and mounted on the outwardly inclined portion 1e on the outer peripheral side of the flange 1b shown in FIG. The mounting portion 5a to the flange 1b is formed so as to be inclined with respect to the space forming portion 5b exhibiting the spacer function, that is, the opposite side of the sink 1 is lowered.

  7 is a soft part integrally provided with the spacer member 5 on the lower surface of the space forming part 5b, and 8 is a soft part integrally provided with the spacer member 5 on the inclined upper surface of the mounting part 5a. These soft portions 7 and 8 are formed by extruding (two-color molding) a material softer than the spacer member 5 made of, for example, silicon rubber or ethylene propylene rubber at the same time as the spacer member 5. It is provided as a secondary water stop material. These soft portions 7 and 8 can also be provided by welding to the spacer member 5 or the like. A square recess 5d is formed between the mounting portion 5a of the spacer member 5 and the space forming portion 5b. The recess 5d is provided in order to secure a mounting area for the soft portion 7 provided on the lower surface of the space forming portion 5b.

  The spacer member 5 is formed so that the top portion 8a of the soft portion 8 protrudes above the upper surface level 14 of the space forming portion 5b before being attached to the flange 1b. Further, the thickness t2 of the space forming portion 5b is formed larger than the thickness t1 of the space forming portion 5b in the spacer member 5 shown in FIG. Further, the thickness t2 of the space forming portion 5b is about twice as large as the thickness t3 of the lower half portion of the mounting portion 5a of the spacer member 5.

  Reference numeral 9 denotes a metal fixing bracket for fixing the sink 1 to the top plate 2, and a plurality of them are arranged around the sink 1. The fixture 9 has a U-shaped curved portion 9a in order to increase elasticity. The fixing bracket 9 is attached by a mounting screw 11 screwed into the reinforcing plate 4 through the spacer 10, and the sink 1 is fixed to the top plate 2 by pressing the lower surface of the flange 1 b of the sink 1 with the tip of the fixing bracket 9. . At the same time, the fixing bracket 9 compresses the water-stopping material 6 and the soft portions 7 and 8 by elastically pressing the sink 1 toward the top plate 2, thereby watertight between the flange 1 b and the lower surface of the top plate 2. It plays the role of ensuring sex.

  A filler 12 is filled in a gap between the outer peripheral surface of the sink 1, the lower surface of the top plate 2, and the reinforcing plate 4, and is filled and solidified with, for example, a hot-melt adhesive.

  FIG. 3 is an exploded view for explaining an assembly process of the sink 1 and the top plate 2 of this embodiment. When assembling the sink 1 and the top plate 2, as shown in FIG. 3, the bottom surface of the top plate 2 is inverted so that the bottom surface is up, and in the inverted state, in the vicinity of the edge of the opening 2 a of the top plate 2 A water-stopping material 6 made of soft silicon rubber or the like is placed and fixed.

  On the other hand, the spacer member 5 is attached over the entire circumference of the flange 1b of the sink 1, the sink 1 is also turned upside down, the sink 1 is aligned with the top plate 2, and the flange 1b is placed on the waterstop 6 Overlay on.

  Next, the fixing bracket 9 is fixed to the reinforcing plate 4 with an attachment screw 11 that is screwed and fastened, whereby the flange 1 b is pressed against the top plate 2 by the fixing bracket 9. Thereby, the top plate 2 and the sink 1 are integrated in the state which compressed the water stop material 6 and the soft parts 7 and 8. FIG. Thereafter, a filler 12 made of a hot-melt adhesive or the like is filled into a groove formed by the side surface of the sink 1, the top plate 2, and the side surface of the reinforcing plate 4 and solidified.

  In the water stop structure configured as described above, the flange 1 b of the sink 1 is pressed against the top plate 2 by the fixing bracket 9, so that the water stop material 6 is interposed between the flange 1 b and the top plate 2. Since it is compressed and sandwiched and disposed, the space between the flange 1b and the top plate 2 is closed by the water-stopping material 6 and primary water-stopping is performed.

  Further, since the soft portion 8 provided on the upper surface of the mounting portion 5a of the spacer member 5 is compressed and sandwiched between the top plate 2 and the inclined upper surface of the mounting portion 5a, on the upper surface side of the spacer member 5 A secondary water stop structure is realized. In particular, when the top plate 2 is made of ceramic and the reinforcing material 3 such as glass fiber is provided on the lower surface thereof as in this embodiment, the lower surface of the top plate 2 becomes an uneven surface, but the soft portion 8 Follows the uneven surface and closes the uneven surface with the soft portion 8 so that the secondary water stop on the upper surface side of the spacer member 5 is satisfactorily performed.

  According to this embodiment, the upper surface of the space forming portion 5b contacts the lower surface of the top plate 2, and the soft portion 8 has the total thickness after compression of the soft portion 8, the space forming portion 5b, and the soft portion 7. 2, when designing the space Δh shown in FIG. 2, the design of the space Δh by compression only needs to consider the thickness of the space forming portion 5b and the soft portion 7 and the shrinkage due to compression, and the space where shrinkage due to compression is small. The thickness t2 of the formation portion 5b can be increased. For this reason, the variation in the width of the space Δh due to the spacer member 5 is reduced, and the water tightness due to the water blocking material 6 is more accurately maintained.

  In this embodiment, the soft portion 8 does not have to be formed entirely on the upper surface of the mounting portion 5a. If the amount is small, a part of the soft portion 8 is formed on the space forming portion 5b. You may make it the structure by which the principal part of the soft part 8 was provided on the mounting part 5a.

  On the other hand, the soft portion 7 provided on the lower surface of the space forming portion 5b of the spacer member 5 is compressed and sandwiched between the flange 1b and the space forming portion 5b. Water structure is realized. In particular, when the surface of the flange 1b is embossed to prevent scratches or the like, the soft portion 7 follows the uneven surface by the embossing and closes the uneven surface with the soft portion 7, or the flange 1b is bent. The secondary water stop on the lower surface side of the spacer member 5 can be satisfactorily performed. Further, in this embodiment, since the concave portion 5d is provided on the back surface of the space forming portion 5b to increase the mounting area of the soft portion 7, the soft portion 7 can easily follow the unevenness of the flange 1b.

  In order to realize the water stop structure in this embodiment, the width Δh of the space formed by the spacer member 5 is preferably 1 mm to 5 mm. If the space Δh is less than 1 mm, the water-stopping material 6 cannot withstand the dimensional change due to the environment of the top plate 2 or the flange 1b and may be peeled off. On the other hand, if the space exceeds 5 mm, the amount of deformation due to the compression of the water-stopping material 6 and the soft portions 7 and 8 is insufficient, and it becomes difficult to follow the irregularities on the lower surface of the flange 1b and the top plate 2. Moreover, it is not preferable that the water-stopping material 6 looks thick on the design.

  FIG. 4 is a cross-sectional view showing another embodiment of the water stop structure according to the present invention, and FIG. 5 is a spacer member used in the water stop structure of this embodiment. In this embodiment, the space forming portion 5b is formed through the vertical portion 5e raised from the sink 1 side of the mounting portion 5a inclined to the flange 1b of the spacer member 5X, and the soft portion is formed on the space forming portion 5b. A portion 8 is provided. A concave portion 5d is formed between the vertical portion 5e and the space forming portion 5b to expand the mounting area of the soft portion 7.

  As shown in FIG. 4, in the spacer member 5X of this embodiment, in the mounted state, the soft portion 8 is compressed between the space forming portion 5b and the top plate 2 to be deformed, and thereby the spacer member 5X The watertightness between the top plate 2 is maintained and a secondary water stop structure is realized. Further, in this embodiment, since the concave portion 5d is provided on the back surface of the space forming portion 5b to increase the mounting area of the soft portion 7, the soft portion 7 can easily follow the unevenness of the flange 1b.

  FIG. 6 is a sectional view further showing another example of the spacer member according to the present invention. The spacer member 5Y is formed by forming a hollow portion 5f that can be easily deformed on the inclined upper surface of the mounting portion 5a. The spacer member 5Y is sandwiched between the flange 1b of the sink 1 and the top plate 2, and the hollow portion 5e is compressed and deformed, so that water is stopped between the top plate 2 and the spacer member 5Y. The The hollow portion 5f may be formed from the space forming portion 5b or from the space forming portion 5b to the mounting portion 5a.

  Although the present invention has been described with the embodiment, the present invention can use a material other than ceramic as the top plate. In addition, when implementing this invention, a various change and addition are possible about a structural member and its combination in the range which does not deviate from the summary of this invention.

DESCRIPTION OF SYMBOLS 1 Sink 1b Flange 2 Top plate 5, 5X, 5Y Spacer member 5f Hollow part 6 Water-stop material 7, 8 Soft part

Claims (4)

In the water stop structure of the sink, which stops water leakage between the flange provided to the outside at the upper surface opening of the sink and the top plate disposed on the sink,
A spacer member mounted on the flange of the sink and forming a space on the upper surface opening side of the sink between the upper surface of the flange and the lower surface of the top plate;
A water stop structure for a sink, comprising: a water stop material disposed in the space and closing the space. In the water stop structure of the sink according to claim 1,
A sink water-stopping structure characterized in that a soft portion is provided on an upper surface of the spacer member so as to block between the spacer member and a lower surface of the top plate. In the water stop structure of the sink according to claim 1 or 2,
A sink water-stopping structure, comprising: a lower surface of the spacer member facing the upper surface of the flange; and a soft portion that closes between the spacer member and the flange. A spacer member that is attached to the flange of the sink and forms a space for disposing a primary waterstop between the upper surface of the flange and the lower surface of the top plate,
A mounting portion having a mounting groove fitted to the inclined portion of the outer periphery of the flange of the sink;
A space forming part formed to protrude from the tip of the upper part of the mounting part to the sink side,
As a secondary waterproofing material, at least a secondary waterproofing material that prevents water leakage between the spacer member and the top plate, the mounting part or the space forming part, or from the mounting part to the space forming part A spacer member comprising a soft part or a hollow part provided integrally therewith.

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