JP3861164B2 - Kitchen counter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a kitchen counter composed of a counter, a wood reinforcing material, and a sink.
[0002]
[Prior art]
Japanese Patent Laid-Open No. 7-111921 discloses that a flange at the upper end of the sink is attached to the periphery of the lower surface of the opening of the counter made of artificial marble with an adhesive. In order to reinforce this, it is known that a wooden reinforcing material such as plywood is fixed to the lower surface side of the artificial marble counter.
[0003]
Conventionally, a counter made of artificial marble and a sink made of stainless steel or synthetic resin are fixed, and a counter made of artificial marble and a wooden reinforcing material are bonded with a reaction hardening type adhesive.
[0004]
By the way, in recent years, due to increasing environmental problems and demands for resource saving, effective utilization of resources by recycling kitchen counters is required. That is, it is required to separate and recycle artificial marble counters, wooden reinforcements, stainless steel and synthetic resin sinks.
[0005]
However, in the past, it has been difficult to separate an artificial marble counter bonded with an adhesive, a wooden reinforcing material, and a stainless steel or synthetic resin sink. For this reason, at present, recycling of artificial marble counters bonded with adhesives, wooden reinforcements, and sinks made of stainless steel or synthetic resin has not progressed.
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and it is an object of the present invention to provide a kitchen counter that can easily separate a counter, a wooden reinforcing material, and a sink and can easily reuse resources. It is what.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, a kitchen counter according to the present invention comprises an artificial marble counter 1, a wooden reinforcing material 3 fixed to the lower surface of the counter 1, and a sink 2 fixed to the wooden reinforcing material 3. in kitchen counter a, a wood reinforcement 3 around the lower surface of the opening portion 9 of the counter 1 is bonded via a layer of heat-releasable adhesive 4, located at the upper end by Riyaya lower side wall portion 6 of the sink 2 A laterally extending fixing piece 7 protrudes outward from the portion, a portion above the fixing piece 7 of the side wall portion 6 of the sink 2 is used as a wooden reinforcing material covering portion 8, and the fixing piece 7 is attached to the lower surface of the wooden reinforcing material 3 with a screw tool 5. The wood reinforcing material covering portion 8 covers the inner side surface of the wooden reinforcing material 3 while being fixed by the above. With such a configuration, the sink 2 can be fixed to the lower surface side of the counter 1 via the wood reinforcing material 3 with the screw 5 and heat is applied to the kitchen counter A for recycling. Thus, the counter 1 and the wood reinforcing material 3 can be easily separated in a state in which the layer of the heat-peelable adhesive 4 can be peeled, and the wood reinforcing material 3 can be released by releasing the fixation by the screw tool 5. And the sink 2 can be easily separated. Moreover, even if the sink 2 is fixed to the wooden reinforcing material 3 fixed to the lower surface of the counter 1 with the screw 5 so that the sink 2 can be easily recycled as described above, the wooden reinforcing material covering portion 8 provided on the sink 2 is used. Thus, the wooden reinforcing material 3 can be prevented from being exposed to the opening 9 of the counter 1 by covering the inner surface of the wooden reinforcing material 3.
[0008]
Moreover, it is preferable that the layer of the heat-peelable adhesive 4 is formed of an adhesive 4 that foams by heating. In this case, the adhesive 4 that foams by heating is preferably a silicon-based or urethane-based adhesive. By adopting such a configuration, in recycling, when heat is applied to the kitchen counter A, the heat-peelable adhesive 4 made of an adhesive that foams by heating foams, and the heat-peelable adhesive 4 is bonded to the joint surface. The contact area is reduced, and the point contact state is changed from the normal surface adhesion state. As described above, the adhesive area is reduced and the strength of the layer of the adhesive 4 itself is reduced .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0010]
FIG. 1 shows a kitchen counter A according to an embodiment of the present invention. The kitchen counter A includes an artificial marble counter 1, a plywood wooden reinforcing material 3 that is fixed to the lower surface of the artificial marble counter 1 and reinforces the artificial marble counter 1, and a wooden reinforcing material 3. Among them, the sink 2 made of stainless steel or synthetic resin is attached to the wood reinforcing material 3 fixed to the lower surface side of the opening 9 of the counter 1 made of artificial marble by a screw tool 5.
[0011]
Here, in the present invention, the artificial marble counter 1 and the wood reinforcing material 3 are bonded to each other through a layer of the heat-peelable adhesive 4.
[0012]
The heat-peelable adhesive 4 is, for example, an adhesive 4 that is foamed by heating. Examples of the adhesive include urethane-based one-component type, modified silicon-based one-component type, epoxy-based one-component type, and epoxy-based two-component type. An adhesive in which a foaming agent is mixed can be used. Here, as the foaming agent mixed in the adhesive, both organic and inorganic ones can be used. Examples of the inorganic foaming agent include separation-type inorganic foaming agents such as ammonium carbonate, ammonium hydrogen carbonate, ammonium nitrite, ammonium borohydride, and azides. Organic foaming agents include fluorinated alkanes such as trichloromonofluoromethane, azo compounds such as azobisisobutyronitrile, hydrazine compounds such as paratoluenesulfonyl hydrazide, and semicarbazides such as ρ-toluylenesulfonyl semicarbazide. Examples thereof include compounds, triazole compounds such as 5-morpholyl-1,2,3,4-thiatriazole, N-nitroso compounds such as N, N′-dinitrosotephthalamide, and other low-boiling solvents.
[0013]
In the present embodiment, as described above, the wood reinforcing material 3 made of plywood is adhered to a plurality of locations on the lower surface of the counter 1 made of artificial marble with the heat-peelable adhesive 4 made of the adhesive 4 that foams by heating. The counter 1 made of artificial marble is reinforced, and the lower surface of the wooden reinforcing material 3 fixed around the opening 9 of the counter 1 made of artificial marble among the plurality of wooden reinforcing materials 3 is made of stainless steel or synthetic. A lateral fixing piece 7 projecting laterally from the side wall 6 of the resin sink 2 is pressed through a rubber packing 11. In this state, a screw 5 such as a screw is pushed from the fixing piece 7 to the wood reinforcing material 3. It is fixed by screwing in.
[0014]
Here, a laterally-fixed fixing piece 7 protrudes outward from a portion located slightly below the upper end of the side wall portion 6 of the sink 2, and a portion above the fixing piece 7 of the side wall portion 6 of the sink 2 is made of wood. Reinforcing material cover 8 is provided. When the fixing piece 7 is fixed to the wooden reinforcing material 3 with the screw 5 as described above, the inner surface of the wooden reinforcing material 3 is covered by the wooden reinforcing material covering portion 8 at the upper end portion of the side wall portion 6 of the sink 2. It will be. Thus, when the sink 2 is attached, the sink 2 can be easily attached to the wood reinforcing material 3 with the screw 5 and the sink 2 is fixed to the lower surface of the counter 1 so that it can be easily recycled. Although the structure is fixed by the screw 5, the wooden reinforcing material 3 is exposed to the opening 9 of the counter 1 by covering the inner surface of the wooden reinforcing material 3 with the wooden reinforcing material covering portion 8 provided in the sink 2. Therefore, the aesthetic appearance of the edge portion of the opening 9 of the counter 1 is not impaired, and the commercial value is not lowered. In addition, by providing the wood reinforcing material covering portion 8 as described above, water may infiltrate from the sink 2 side into the joining portion of the wood reinforcing material 3 and the wood reinforcing material 3 and the heat release adhesive 4 between the sink 2. It can be prevented.
[0015]
In recycling the kitchen counter A having the above-described configuration, for example, by heating it using an arbitrary heating device, the adhesive 4 layer is foamed to become porous, and the adhesive becomes porous. In the layer 4, the contact areas on the joint surface between the counter 1 and the reinforcing material 3 and the joint surface between the counter 1 and the sink 2 are reduced, so that the normal surface adhesion state is changed to the point adhesion state. That is, since the adhesive area is reduced and the strength of the adhesive 4 layer itself is reduced, the counter 1 and the reinforcing material 3 can be easily separated. In addition, since the sink 2 is fixed to the wood reinforcing material 3 by the screw 5, the sink 2 can be easily separated from the wooden reinforcing material 3 by removing the fixing by the screw 5. This makes it possible to easily separate and recycle the kitchen counter A, which is difficult to separate different materials and difficult to recycle.
[0016]
Here, as an example, a 15 mm thick wooden reinforcing material 3 is bonded to the lower surface of a counter 1 made of 8 mm thick artificial marble with an adhesive 4 which is foamed by heating in which a foaming agent is mixed with a silicon adhesive, Furthermore, when recycling the kitchen counter A constituted by fixing the horizontal fixing piece 7 of the stainless steel sink 2 to the lower surface of the wooden reinforcing material 3 with the screw 5 made of screws through the rubber packing 11, first, The screw 5 is loosened to separate the sink 2 from the wood reinforcing material 3, and then heated for 30 minutes at a temperature of 180 ° C. with a heating device comprising a drying device by heating, an adhesive that bonds the counter 1 and the reinforcing material 3 together The layer 4 foams into a porous layer, and the wooden reinforcing material 3 can be easily peeled from the counter 1 made of artificial marble.
[0017]
【The invention's effect】
As described above, in the present invention, in the kitchen counter comprising the counter made of artificial marble, the wooden reinforcement fixed to the lower surface of the counter, and the sink fixed to the wooden reinforcement, the opening of the counter A wooden reinforcement is adhered to the periphery of the lower surface through a layer of heat-peeling adhesive, and a laterally fixed piece protrudes outward from a portion located slightly below the upper end of the sink side wall, The part above the fixed piece is used as a wooden reinforcement covering part, and the fixed piece is fixed to the lower surface of the wooden reinforcement with a screw and the wooden reinforcement covering part covers the inner surface of the wooden reinforcement. The tool can be easily fixed to the lower surface of the counter via a wooden reinforcing material, and the wooden reinforcing material and the sink can be easily separated by loosening the screw tool during recycling. Each of the kitchen counters configured by combining different materials can be easily separated from the counter and the wood reinforcing material in a state where the heat-peelable adhesive layer can be peeled off by heating. The material can be easily recycled. Moreover, even if the sink is fixed to the wooden reinforcement material fixed to the lower surface of the counter with a screw so that the sink can be easily recycled as described above, the inner surface of the wooden reinforcement material is provided by the wooden reinforcement covering portion provided on the sink. So that the wood reinforcement is not exposed in the opening of the counter.
[0018]
In addition, since the heat-peelable adhesive layer is formed of an adhesive that foams by heating, a heat-peelable adhesive made of an adhesive that foams by heating by applying heat to the kitchen counter is used for recycling. Foaming, the contact area on the joint surface by the heat-peeling adhesive is reduced, and the point contact state is changed from the normal surface adhesion state. As described above, the adhesive area is reduced and the strength of the adhesive layer itself is reduced, so that it can be easily peeled and recycled .
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an embodiment of a kitchen counter of the present invention.
[Explanation of symbols]
A Kitchen Counter 1 Counter 2 Sink 3 Wood Reinforcement 4 Heat-Releasable Adhesive 5 Screw 6 Side Wall 7 Fixing Piece 8 Wood Reinforcement Cover 9 Opening

Claims (3)

In a kitchen counter consisting of a counter made of artificial marble, a wooden reinforcement fixed to the lower surface of the counter, and a sink fixed to the wooden reinforcing material, the wooden reinforcing material is thermally peeled around the lower surface of the opening of the counter Adhesion is made through an adhesive layer, and a laterally fixed piece protrudes outward from a portion located slightly below the upper end of the sink side wall, and the portion above the fixed piece on the side wall of the sink is covered with a wooden reinforcing material. The kitchen counter is characterized in that the fixing piece is fixed to the lower surface of the wooden reinforcing material with a screw and the inner surface of the wooden reinforcing material is covered with the wooden reinforcing material covering portion .   The kitchen counter according to claim 1, wherein the heat-peelable adhesive layer is formed of an adhesive that foams when heated. The kitchen counter according to claim 2, wherein the adhesive that foams by heating is a silicon-based or urethane-based adhesive .

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