JP4936188B2 - Counter and sink joining method - Google Patents

Description

The present invention relates to a method for joining a counter and a sink, and more particularly to a method for integrally joining a counter and a sink installed in, for example, a kitchen or a washroom.

  There is known a sink in which a stainless steel kitchen sink is integrally assembled in an opening of a counter made of artificial marble (see, for example, Patent Document 1).

  By the way, conventionally, as a method of integrally joining the counter and the sink, for example, as shown in FIG. 5B, the counter 1 and the sink 2 are turned upside down so that the gap between the counter 1 and the sink 2 The joining member 3 is thrown into from above and joined. 8 in the figure is a reinforcing bar.

  In this conventional example, as shown in FIG. 5A, there is an advantage that the joining member 3 does not appear on the product surface 6 side, but there is a step d at the joining portion between the counter 1 and the sink 2. There is a problem that not only dirt is easily attached to the step d, but also it is difficult to clean up to the depth of the step d.

  Therefore, in the process of reaching the present invention, the inventors have made the counter surface such that the outermost surface of the joining member 3 that joins the counter 1 and the sink 2 appears on the product surface 6 side as shown in FIGS. A joining method has been devised to improve the cleanability and appearance by joining 1 and the sink 2 without any step.

  That is, as shown in FIG. 6, the counter 1 and the sink 2 are turned upside down, and the lower surface of the gap between the counter 1 and the sink 2 is closed with the silicon rubber jig 10 to form the groove-like portion 4 opened upward. The joining member 3 is inserted from above the groove-like portion 4 to form the first adhesive layer 3A, and subsequently, the reinforcing second adhesive layer 3B is laminated. In this new bonding method, as shown in FIG. 7, the outermost surface of the first adhesive layer 3A appears on the product surface 6 side.

  By the way, for example, in the case of the counter 1 which is frosted so that scratches are not noticeable, the first adhesive layer 3A appearing on the product surface 6 side may be finished to be matt (matte), but it is glossy. In the case of the counter 1, it is necessary to make the first adhesive layer 3A have a glossy appearance instead of matte (matte). However, when a conventional low-cost general-purpose joining member is used, gloss cannot be obtained.

Therefore, it is considered that the first adhesive layer 3A is formed using a transparent and glossy high-priced bonding member, and the pattern material 5 for forming a pattern or pattern is put into the first adhesive layer 3A. It was. For example, as shown in FIG. 8 (b), a first adhesive layer 3A handle member 5 containing (e.g. 8 mm) was charged from the nozzle, as shown in FIG. 8 (c) after hardening the first adhesive layer 3A is In addition, a second adhesive layer 3B (for example, 15 mm) for maintaining the strength is introduced from the nozzle. Thereafter, by removing the silicon rubber jig 10 as shown in FIG. 8A, the outermost surface of the first adhesive layer 3A appears on the product surface 6 side, and the pattern material 5 in the first adhesive layer 3A Marble can be expressed.

However, in the method of injecting the first adhesive layer 3A containing the pattern material 5 with a nozzle, the nozzle diameter is generally as small as φ1.5 mm, and the pattern material 5 having a large particle size cannot be selected. The degree of freedom could not be raised. Moreover, it is necessary to prevent the pattern material 5 from being biased in the first adhesive layer 3A. In this case, it is necessary to use the pattern material 5 having the same specific gravity as the resin of the first adhesive layer 3A, and a large amount of the material is used. There is a new problem that the pattern material 5 is required and the cost is high.
JP 2006-291610 A

The present invention was invented in view of the above-mentioned conventional problems, and can be made a high-quality finished surface by forming a transparent and glossy ultrathin layer on the outermost surface of the joining member appearing on the product surface side, To provide a method of joining a counter and a sink that can increase the degree of freedom in selecting the particle size of the pattern material to be sprayed on the back side of the ultra-thin layer, and can provide a natural feeling and luxury at a low price. Is an issue.

In order to solve the above-mentioned problem, the invention according to claim 1 is that the sink 2 is assembled to the opening of the counter 1, and the opening end face 1a of the counter 1 and the flange 2a of the sink 2 are joined via a joining member. In this method , the counter 1 and the sink 2 are turned upside down, and the lower surface of the gap provided between the opening end surface 1a of the counter 1 and the flange portion 2a of the sink 2 is closed with the jig 10. And a preliminary step of forming the groove-shaped portion 4 opened on one side, and a transparent joining member is inserted from the opened one of the groove-shaped portions 4 with a nozzle to form a transparent and glossy ultrathin layer 3C. 1 step, a second step of spraying a pattern material 5 for forming a pattern or a pattern on the ultrathin layer 3C by a nozzleless spraying method, and general-purpose joining on the ultrathin layer 3C on which the pattern material 5 is sprayed Insert the component from the nozzle ; And a third step of laminating forming layer 3A to (3B), wherein to Rukoto and the outermost surface of the joint member to expose the ultra-thin layer 3C after removal of the jig 10 to the product surface 6 side It is said.

By adopting the joining method according to claim 1, for example, in a product in which the glossy counter 1 and the sink 2 are integrally joined, the outermost surface of the joining member that appears on the product surface 6 side is transparent and glossy and extremely thin. The layer 3C becomes a high-quality finished surface, and even if the ultra-thin layer 3C is formed of a high-priced transparent bonding member, the amount of the transparent bonding member required can be reduced, so that the material cost can be saved. . Further, since the adhesive layer 3A (3B) laminated on the back surface side of the ultrathin layer 3C is not exposed on the product surface 6 side, a conventional general-purpose joining member can be used, and an increase in cost can be suppressed. Furthermore, since the pattern material 5 spread on the back surface of the ultrathin layer 3C is sprayed in a separate process from the ultrathin layer 3C and in a nozzle-less spraying method, the pattern material 5 having a large particle size by not passing through the nozzle. The degree of freedom in selecting the particle size of the pattern material 5 can be increased, and the pattern material 5 can be uniformly distributed in the ultrathin layer 3C so as not to be biased. The pattern material 5 appears through the transparent and glossy ultrathin layer 3C while reducing the natural color, and a natural feeling and luxury can be obtained at a low price.

In the joining method of the counter and the sink according to the present invention, the outermost surface of the joining member appearing on the product surface side can be made into a transparent and glossy ultrathin layer, and at the same time, a high cost specification transparent joint that forms an ultrathin layer The material cost of the material can be saved, and the degree of freedom in selecting the particle size of the pattern material to be spread on the back side of the ultrathin layer can be increased, so that a natural feeling and luxury can be obtained at a low price. It becomes like this. As a result, it can be optimally used for a product in which a glossy counter and a sink are integrally joined, and can meet the demand for improving the appearance performance and high quality performance on the product surface side at a low price.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  In FIG. 1, a stainless steel kitchen sink 2 (hereinafter abbreviated as “sink 2”) is assembled to an opening of an artificial marble counter 1 of the present embodiment, and an opening end face 1a of the counter 1 and a flange 2a of the sink 2 are assembled. And FIG. 2 and FIG. 3 show an example of the joining process.

  The tip of the flange portion 2a of the sink 2 is a folded piece 2b that is folded inward in an approximately L shape. A gap between the folded piece 2b of the sink 2 and the opening end face 1a of the counter 1 is joined by a joining member, and the outermost surface of the joining member appears on the product surface 6 side. Reference numeral 8 in FIG. 1 denotes a reinforcing bar that also serves as a part of the groove-like portion 4.

  As shown in FIG. 1, the joining member includes a transparent and glossy ultrathin layer 3 </ b> C formed of a transparent joining member from the product surface 6 side to the backside, and a back surface of the ultrathin layer 3 </ b> C. It is comprised by the adhesive layers 3A and 3B which consist of a filled general purpose joining member.

  Here, the supply of the transparent joining member and the general-purpose joining member is performed through a nozzle, respectively. As an example, a coating device (not shown) including a syringe filled with a joining member, a pressurizing unit that pressurizes the inside of the syringe, and a nozzle that discharges the joining member by pressurization is used.

  Further, in the present invention, the high-priced transparent joining member that forms the ultrathin layer 3C and the low-priced general-purpose joining member that forms the first adhesive layer 3A and the second adhesive layer 3B are selectively used.

  As the transparent joining member, for example, a transparent or translucent high performance and high quality adhesive is selected. Here, a resin having good reactivity is used instead of a non-yellowing type resin. Further, it is preferable to use a resin that is easily cured by the heat of the heater, has a short curing time, and can be released quickly.

  On the other hand, as a general-purpose joining member, a conventional low-cost adhesive that is not high-performance is selected.

  In addition, it is preferable that the transparent bonding member and the general-purpose bonding member include the same components that can be in close contact with each other.

  On the back side of the ultrathin layer 3C, a pattern material 5 for forming a pattern or a pattern is uniformly dispersed by a nozzleless dispersion method. Here, the pattern material 5 for artificial marble is used as the pattern material 5. As an apparatus for spraying without a nozzle, for example, a spraying apparatus (not shown) provided with a hopper that fills the pattern material 5 and a vibration plate or a rotating roll bar that receives and uniformly disperses the pattern material 5 falling from the hopper. Can be used. Of course, this is only an example, and the type of the spraying device is not particularly limited. Further, the type, pattern, pattern and the like of the pattern material 5 can be selected and changed as appropriate.

  Next, an example of a joining process will be described.

  First, as shown in FIG. 2, the counter 1 and the sink 2 are turned upside down, and the lower surface of the gap provided between the opening end face 1a of the counter 1 and the folded piece 2b of the flange 2a of the sink 2 is elongated. Is closed with the silicon rubber jig 10 to form a groove-like portion 4 opened on one side (upper side in FIG. 2) (preliminary process). The transparent joining member, the pattern material 5 and the general-purpose joining member are introduced in this order from the open side of the groove-like portion 4 (upper side in FIG. 2).

  First, a transparent bonding member is introduced from a nozzle to form an ultrathin layer 3C on the lower surface side (the upper surface of the silicon rubber jig 10) of the groove-shaped portion 4 in FIG. 3B (first step). The thickness of the ultrathin layer 3C is 1 mm or less. At this time, injection is performed with a nozzle while adjusting the viscosity and flowability of the transparent bonding member so that there are no remaining bubbles, chipping or protrusion.

  Next, as shown in FIG. 3C, a pattern material 5 for forming a pattern or pattern on the ultrathin layer 3C is sprayed by a nozzleless spraying method (second step). Here, the pattern material 5 having a large particle size is sprayed using the above-described spraying device without passing through the nozzle. At this time, the particle size and the amount of the pattern material 5 to be dispersed are appropriately selected according to the pattern.

  Next, as shown in FIG. 3D, a general-purpose joining member is thrown from the nozzle on the ultrathin layer 3C on which the pattern material 5 has been dispersed to form the first adhesive layer 3A (for example, 8 mm). Before the first adhesive layer 3A is cured, a general-purpose joining member is further inserted from above the first adhesive layer 3A through the nozzle as shown in FIG. 3 (e), and the reinforcing second adhesive layer 3B (for example, 15 mm) is attached. Laminated and formed (third step). At this time, the first adhesive layer 3A is formed before the ultrathin layer 3C is cured (after semi-curing), and the second adhesive layer 3B is formed before the first adhesive layer 3A is cured. Further, when forming the first adhesive layer 3A, the general-purpose joining member also enters the flange portion 2a through a communication hole (not shown) opened at an appropriate location of the flange portion 2a of the sink 2, The first adhesive layer 3A is formed from the groove portion 4 to the inside of the flange portion 2a.

  Thereafter, after the bonding member is cured, the silicon rubber jig 10 is removed, so that the ultrathin layer 3C is exposed to the product surface 6 side as shown in FIG.

  Therefore, in the product in which the glossy counter 1 and the sink 2 are integrally joined, the ultrathin layer 3C appearing on the product surface 6 side can be a transparent and glossy high-quality finished surface of 1 mm or less. Moreover, since the amount of the transparent joining member, which is a high-priced specification for forming the ultrathin layer 3C, can be reduced, material costs can be saved.

  Further, since the pattern material 5 is sprayed in a separate process from the ultrathin layer 3C, the pattern material 5 can be sprayed without passing through the nozzle, and as a result, the pattern material 5 having a large particle size can be used. The degree of freedom of selection of the particle size of the material can be increased, and the pattern material 5 can be uniformly dispersed in a small amount so as not to be biased in the ultrathin layer 3C. As a result, the pattern material 5 appears on the product surface 6 through the transparent and glossy ultrathin layer 3C, so that the surface of the ultrathin layer 3C has a marble-like appearance, and a natural feeling and a high-class feeling can be obtained.

  By the way, as shown in FIG. 4 (reference example), in the system in which the pattern material 5 is put in the first adhesive layer 3A and injected by the nozzle without providing the ultrathin layer 3C, the pattern material 5 The wetted part 5a is generated, and the wettability of the pattern material 5 is poor, and it is easy to peel off. However, the wettability is improved by spraying the pattern material 5 on the back side of the ultrathin layer 3C as in the present invention. Benefits that can be obtained.

  In addition, since the first adhesive layer 3A and the second adhesive layer 3B laminated on the back surface side of the ultrathin layer 3C are not exposed on the product surface 6 side, the same inexpensive general-purpose adhesive as before can be used. , Cost increase can be suppressed.

  Further, it is preferable to add an antibacterial agent, an antifungal material, or the like inside the ultrathin layer 3C. In this case, an antibacterial agent or the like is added to the transparent joining member and injected with a nozzle. There is also an advantage that can be reduced.

  Furthermore, by placing a heater inside the silicon rubber jig 10, the resin of the ultrathin layer 3C can be quickly solidified. Here, as a transparent bonding member for forming the ultrathin layer 3C, if formed with a non-yellowing type resin in order to improve the weather resistance, the curing is slow, but in this example, the non-yellowing type is used. Resin is used instead of resin, which makes it easy to cure with the heat of the heater, has a short curing time, and can be released quickly. As a result, the release time of the silicon rubber jig 10 can be reduced. The advantage that it can be greatly shortened is also obtained.

It is side surface sectional drawing which shows an example of the structure where the stainless steel sink was assembled | attached to the opening part of the counter made from the artificial marble of this embodiment, and the opening part end surface of the counter and the flange part of the sink were joined via the joining member. . It is a figure explaining the state after joining of a counter and a sink same as the above. (A)-(e) is explanatory drawing of a joining process same as the above. It is a reference figure explaining the wettability of the pattern material when not providing an ultrathin layer same as the above. (A) (b) is explanatory drawing of the conventional joining method. It is explanatory drawing of the joining process used as the basis of this invention. It is explanatory drawing of the structure used as the foundation of this invention. (A)-(c) is explanatory drawing of the joining process used as the other basics of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Counter 1a Opening end surface 2 Sink 2a Flange part 3A, 3B Adhesive layer 3C Ultrathin layer 4 Grooved part 5 Pattern

Claims (1)

Sink is assembled to the opening of the counter, the method of bonding via the bonding member and the flange portion of the opening end face and the sink counter and the said countersink upside down, and the opening end surface of the counter A preliminary step of forming a groove-like portion opened to one side by closing the lower surface of the gap provided between the flange portion of the sink with a jig, and a transparent joining member from one of the opened groove-like portions A first step of forming a transparent and glossy ultrathin layer with a nozzle, and a second step of spraying a pattern material for forming a pattern or pattern on the ultrathin layer in a nozzleless spraying method, And a third step of laminating and forming an adhesive layer on the ultrathin layer on which the pattern material has been dispersed through a nozzle, and forming the ultrathin layer after removing the jig on the product surface Table of the joint members exposed on the side Method of joining counters and sinks, characterized in that a.

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