JP5062393B2 - Bonding structure of top plate and resin sink - Google Patents

Description

The present invention relates to a structure for joining a top plate and a resin sink such as an artificial marble, and in particular, for attaching a sink made of an artificial marble to an opening of an artificial marble top plate to obtain a wash surface and a washing portion. It relates to the joint structure.

  Conventionally, in order to provide a wash surface (wash bowl) and a wash portion (sink) on an artificial marble counter, a sink with an open upper side is attached to an opening provided on an artificial marble top plate. At present, the upper peripheral edge of the sink is attached and fixed to the lower surface of the peripheral edge of the opening of the plate using an adhesive or a mounting bracket.

As an example, a joining structure as shown in Patent Document 1 is known. In the joining structure shown in Patent Document 1, the upper end flange portion of artificial marble is joined to the lower surface of the artificial marble top plate and fixed with an adhesive or the like.

Japanese Patent No. 3345320

  However, the conventional joint structure described above has a problem that the joint area between the upper flange portion of the sink and the lower surface of the top plate is not so large, and as a result, the joint strength is low. Grinding work after joining is complicated to eliminate the mounting error with the sink mounting hole of the plate, it is difficult to finish the joint part flush, the appearance quality is impaired, especially to increase the strength, When grinding artificial marble mixed with inorganic fillers and reinforcing materials such as the above, there has been a problem that physical properties such as contamination resistance of the ground portion are remarkably lowered. Therefore, in the conventional joining structure, in order to finish a joined part, it was necessary to grind extensively and the quality of the ground part was inevitably deteriorated.

The present invention has been devised in view of the present situation, and an object of the present invention is to increase the bonding area between the sink and the top plate and improve the bonding strength. An object of the present invention is to provide a joining structure of a top plate and a resin sink that can simplify the grinding operation of the joint portion with the mounting hole and does not impair the quality of the joint portion.

To achieve the above object, the invention described in claim 1, the upper part of the resin sinks side to form a flange portion protruding sink outward horizontal direction, of the upper portion to project above the flange butt the installation position, by grinding the bottom peripheral surface of the sink mounting hole of the flange top surface and the top plate to abut so as to be substantially the same position and thickness of the top plate, the flange portion to the lower circumferential surface, the The upper end of the flange portion of the sink is bonded and fixed to the inner peripheral surface of the sink mounting hole of the top plate .

The invention according to claim 2 is based on the technical premise of claim 1, and the inner peripheral surface of the upper end portion of the sink is inclined in the sink inward direction, and the top plate top portion and the sink upper end portion abutment portion are ground. characterized in that it was.

Junction structure of the top plate and the resin sinks according to claim 3, the joint structure of the top plate and the resin sinks according to claim 1 and a technical premise, the upper portion of the sink, to the flange portion direction is inclined, and the inner peripheral surface of the sink mounting hole of the top plate is tilted so that expanded downward, and characterized in that grinding said top Itaitadaki portion the sink upper part top.

The joining structure between the top plate and the resin sink according to claim 4 is based on the technical premise of the joining structure between the top plate and the resin sink according to any one of claim 2 or claim 3 , and the back surface of the top plate. The reinforcing plate is disposed on the outer periphery of the sink.

In this invention, since it is configured as described above, it is possible to increase the bonding strength by increasing the bonding area between the sink and the top plate, and to join the sink and the sink mounting hole of the top plate. The grinding operation can be simplified and the quality of the joint is not impaired. Furthermore, an integrated-continuity no stepped junction between the top plate and the sink can be easily obtained, a line with, the grinding operation even apexes (corners) the appearance quality can be improved to easily since only cutting Ken to Jo or strip-like, can grinding surface is small compared to the seam on the same plane, Ki de be carried out easily, further punching sink mounting holes of the top plate, be done from the rear side Therefore, the grinding process of the grinding part is easy, the manufacturing variation of the thickness of the top plate can be easily made uniform, and the thickness direction at the time of joining can be easily adjusted.

  Hereinafter, the present invention will be described in detail based on an embodiment shown in the accompanying drawings.

  FIG. 1 is an exploded sectional view showing a joint structure of an artificial marble sink, which is a kind of resin sink according to the first embodiment of the present invention, and a top plate, and FIG. 2 is a sectional view showing a ground state of the joint structure. FIG. 3 is a cross-sectional view showing a completed state of the joint structure.

  In this embodiment, a sink mounting hole 2 is formed through a flat top plate 1 made of artificial marble such as polyester resin, acrylic resin, or epoxy resin.

  Further, the sink 10 formed in a substantially concave shape to be joined to the sink mounting hole 2 is formed with a flange portion 11 protruding in the horizontal direction outside the sink at the upper portion of the side surface 13, and the protrusion of the flange portion 11. The installation position is such that the thickness dimension t of the top plate 1 and the distance l from the top 15 of the sink 10 to the top surface of the flange 11 protrude substantially at the same position, and the upper end 12 of the sink 10 Inclined in the direction. The material and color tone of the artificial marble sink 10 can be formed to be the same as the material and color tone of the artificial marble top plate 1. In the present invention, various designs and colors can be obtained by making the material and color tone different. You can get a nice look.

  When the top plate 1 and the sink 10 thus configured are joined and fixed, the flange portion 11 of the artificial marble sink 10 is placed on the lower surface 3 of the top plate 1 as shown in FIG. The upper portion 12 from the flange portion 11 is bonded and fixed to the inner peripheral surface of the sink mounting hole 2 of the top plate 1 with an adhesive 14. At this time, the bonding area between the sink 10 and the top plate 1 can be made larger than the conventional bonding area between the inner peripheral surface and the lower surface of the sink mounting hole 2, so that the bonding strength can be increased. it can.

  Thereafter, the top plate 1 and the top portion 15 of the sink 10 are ground by a grinder (not shown), so that the joint portion of the top plate 1 and the sink 10 is integrated without any step as shown in FIG.・ Continuity can be easily obtained, appearance quality can be easily improved, and the grinding process is also performed by grinding the top part (corner part) into a linear or thin strip, so the ground surfaces are the same. It can be reduced compared to the joints of, and can be performed easily.

  FIG. 4 is an exploded sectional view showing a joint structure of an artificial marble sink, which is a kind of resin sink according to the second embodiment of the present invention, and a top plate, and FIG. 5 is a sectional view showing a ground state of the joint structure. FIG. 6 is a cross-sectional view showing a completed state of the joint structure.

  In this embodiment, the inner peripheral surface 2A of the sink mounting hole of the top plate 1 is formed so as to be inclined downward, and the upper end portion 12A of the sink 10 is directed toward the flange portion 11. Except for being formed to be inclined, the other configurations and functions are the same as those of the top plate 1 and the sink 10 of the first embodiment, and therefore, the same reference numerals as those of the first embodiment are attached to the drawings. Detailed description is omitted here.

  When the top plate 1 and the sink 10 thus configured are joined and fixed, the flange portion 11 of the artificial marble sink 10 is placed on the lower surface 3 of the top plate 1 as shown in FIG. The upper portion 12A from the flange portion 11 is bonded and fixed to the inner peripheral surface 2A of the sink mounting hole of the top plate 11 with an adhesive. At this time, the bonding area between the sink 10 and the top plate 1 can be made larger than the conventional bonding area at the inner peripheral surface 2A and the lower surface of the sink mounting hole 2, so that the bonding strength is increased. Can do.

  Thereafter, the top plate 1 and the top portion 15 of the sink 10 are ground by a grinder (not shown), so that the joint portion between the top plate 1 and the sink 10 is integrated without any step as shown in FIG.・ Continuity can be easily obtained, appearance quality can be easily improved, and the grinding process is also performed by grinding the top (corner) into a linear or thin strip, so the ground surfaces are the same. It can be reduced compared to the joints of, and can be performed easily.

  FIG. 7 shows a reinforcing structure of the second embodiment. A reinforcing plate 5 is disposed on the outer surface of the sink 10 on the back surface of the top plate 1 by bonding, and a gap between the reinforcing plate 5 and the sink 10 is shown. The resin 6 is filled, the tip of the vertical side of the L-shaped metal fitting 7 is brought into contact with the flange 11, and the horizontal piece is fixed with screws 8. According to this reinforcing structure, it is possible to further improve the attachment strength.

  FIG. 8 shows another embodiment. In this embodiment, the grinding portion 3 on the lower peripheral surface of the sink mounting hole 2 of the top plate 1 is positioned at the protruding position (thickness dimension) of the flange portion 11. ) And the sink 10 is attached by grinding. Since the sink mounting hole 2 of the top plate 1 can be removed from the back side, the grinding of the grinding part 3 can be easily performed, and the manufacturing variation of the thickness of the top plate 1 can be easily made uniform. Adjustment of the thickness direction at the time of joining can be performed easily.

  FIG. 9 shows a joining structure in the case where the flange portion is not projected from the sink 10. In this embodiment, the reinforcing plate 5 is bonded to the outer peripheral portion of the sink 10 on the back surface of the top plate 1. Arrange the reinforcing plate 5 and the inverted L-shaped upper end protrusion with no flange protruding from the inner peripheral surface of the sink mounting hole of the top plate 1 as in the second embodiment. The gap between the sink and the artificial marble sink 10 formed so as to be increased in diameter is filled with the resin 6, and the tip of the vertical side of the L-shaped metal fitting 7 is brought into contact with the back surface of the upper end protrusion of the sink 10. The horizontal piece is fixed with screws 8. At this time, joining is performed so that the total θ of the angle α of the sink mounting hole and the angle β of the upper end of the sink from the upper surface 16 of the top plate 1 is less than 180 degrees (θ (= α + β) <180 degrees). Desirably, 90 degrees or more and less than 160 degrees is good in terms of strength, there is no fear of damaging the human body, and there is no fear of impairing the grinding quality.

  According to this embodiment, since the grinding part is linear or thin, the grinding is easy even when there is no flange part. In addition, when the total angle is larger than 160 degrees and smaller than 180 degrees, there is a possibility that parts other than the joint portion may be ground, and grinding accuracy may be required, but this is included in the scope of the right of the present invention. Shall be.

It is a disassembled sectional view which shows the joining structure of the resin-made sinks and top plate concerning the example of 1st Embodiment of this invention. It is sectional drawing which shows the grinding state of the joining structure. It is sectional drawing which shows the completion state of the junction structure. FIG. It is a disassembled sectional view which shows the joining structure of the resin sinks and the top plate according to the second embodiment of the present invention. It is sectional drawing which shows the grinding state of the joining structure. It is sectional drawing which shows the completion state of the same junction structure. It is sectional drawing which shows the joining structure of the resin sinks and top plates which concern on the other embodiment of this invention. It is sectional drawing which shows the joining structure of the resin sinks and top plates which concern on the further another Example of this invention. It is sectional drawing which shows the joining structure of the resin-made sinks and a top plate when the sink part of this invention does not have a flange part.

Explanation of symbols

1 Artificial marble sink 2, 2A Sink mounting hole 5 Reinforcement plate 6 Resin 7 L-shaped bracket 8 Screw 10 Artificial marble sink (resin sink)
11 Flange portion 12 Upper end portion 13 Sink side surface 14 Adhesive 15 Top portion 16 Top plate upper surface 17 Top plate upper surface corner

Claims (4)

On top of the resin sinks side to form a flange portion protruding sink outwardly horizontally, a projecting position of the upper end portion that protrude above the flange portion becomes substantially the same position and thickness of the top plate grinding the bottom peripheral surface of the sink mounting hole of the ceiling plate to by Uni said flange in contact with the upper face, the flange portion to the lower peripheral surface, among the flange portion upper portion of the sink sink mounting holes of the top plate A joining structure of a top plate and a resin sink characterized by being bonded and fixed to the peripheral surface . The upper end inner peripheral surface of the sink, is inclined to the sink in the direction, the top plate and a resin according to claim 1, characterized in that grinding said the sink on the end top abutment with top plate top Sink joint structure . The upper end portion outer peripheral surface of the sink, is inclined to the flange portion direction, and the inner peripheral surface of the sink mounting hole of the top plate is inclined so as to expanded downward, the sink top end and said top plate top junction structure of the top plate and the resin sinks according to claim 1, characterized in that the grinding part top abutment. Junction structure of the top plate and the resin sinks according to claim 2 or claim 3, characterized in that provided with reinforcing plate on the outer peripheral portion of the sink in the back surface of the top plate.

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