JP7223975B2 - Counter with sink and manufacturing method thereof - Google Patents

Description

TECHNICAL FIELD The present invention relates to a counter with a sink in which a resin sink and a resin top plate are joined together, and a manufacturing method thereof.

In the field of conventional plumbing, various proposals have been made to form a counter with a sink by bonding a resin sink, which is less likely to permeate or corrode due to moisture, and a resin top plate with an adhesive. (See, for example, Patent Document 1).

JP 2011-68704 A

However, since the top plate and sink used for kitchen counters and the like are large members, precision is required in the work of aligning and pasting together with adhesive applied to the joint surface. It takes time. In addition, after bonding, the substrates must be left as they are until the adhesive is cured so as not to cause misalignment, resulting in poor production efficiency. As long as the bonding work is performed using an adhesive, it cannot be expected that the manufacturing time will be significantly shortened.

Furthermore, if the sink deteriorates due to long-term use of the counter with sink, it is assumed that only the sink will be replaced. Adhesion traces may remain. Therefore, these maintenance operations may increase the number of man-hours and increase the cost. Therefore, conventionally, replacement of only the sink has hardly been performed.

SUMMARY OF THE INVENTION The present invention has been proposed in consideration of such circumstances, and an object of the present invention is to provide a counter with a sink and a method of manufacturing the same, which can improve the efficiency and speed of manufacturing.

In order to achieve the above object, the counter with sink of the present invention is a counter with sink in which a resin sink and a resin top plate are joined, wherein the joint portion between the sink and the top plate includes: A permanent magnet is embedded in one of the sink and the top plate, and a material to be attracted to the permanent magnet is embedded in the other.

Further, a method for manufacturing a counter with a sink according to the present invention is a method for manufacturing a counter with a sink by joining a resin sink and a resin top plate, wherein the joint portion between the sink and the top plate includes: an embedding step of embedding a permanent magnet in one of the sink and the top plate and embedding a material to be attracted to the permanent magnet in the other; and bringing the permanent magnet and the material to be attracted into contact or proximity to form the sink. and an assembling step of arranging and joining the top plate at a predetermined position.

Since the counter with sink and the manufacturing method thereof according to the present invention have the configuration and procedure described above, the efficiency and speed of manufacturing can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of the counter with a sink which concerns on one Embodiment of this invention, and its manufacturing method. (a) is a schematic longitudinal sectional view showing an exploded state of the counter with a sink, and (b) is a schematic longitudinal sectional view of the counter with a sink. FIG. 4 is a partial bottom view of the counter with a sink, showing an example of the arrangement positions of permanent magnets and adsorbed materials. It is a model longitudinal cross-sectional view which shows the embedding process in the same manufacturing method. (a) to (c) are partial vertical cross-sectional views of a counter with a sink showing three modes of arrangement height positions of permanent magnets and adsorbed materials. (d) is a schematic longitudinal sectional view showing the embedding process corresponding to (a) to (c). (a) and (b) are partial vertical cross-sectional views of a counter with a sink showing a reinforcing structure for holding the sink.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, directions such as up and down are defined with reference to the state in which the counter with sink 1 is installed.
First, the basic configuration of the sink-equipped counter 1 according to the embodiment will be described.

A counter 1 with a sink is obtained by joining a resin sink 20 and a resin top plate 10. - 特許庁As shown in FIGS. 1(a) and 1(b), the sink-equipped counter 1 has a permanent magnet 14 embedded in one of the sink 20 and the top plate 10 at joints 13 and 25 between the sink 20 and the top plate 10. , and an attracted material 26 that is attracted to the permanent magnet 14 is embedded in the other.

Here, as will be described later, the embedding does not only mean that the permanent magnet 14 or the material to be adsorbed 26 is completely buried without being exposed in the resin that is the embedding target, but also that the surface of the permanent magnet 14 or the material to be adsorbed 26 is not exposed. , burying so as to be exposed to the mounting surface portions 13 and 25 .

Next, the details of the counter with sink 1 will be described.
Examples of the sink-equipped counter 1 include a kitchen counter and a washing counter.

Both the sink 20 and the top plate 10 that constitute the counter 1 with a sink are made of a resin composition 5 containing a synthetic resin material.

The synthetic resin may be either a thermosetting resin or a thermoplastic resin. Examples of thermosetting resins include epoxy resins, unsaturated polyester resins, acrylic resins, polyvinyl ester resins, phenolic resins, and melamine resins. Thermoplastic resins include polyamide, polystyrene, polyethylene terephthalate, and polycarbonate.

When the sink-equipped counter 1 is made of artificial marble or artificial marble, the resin composition 5 contains a pattern material such as crushed resin particles or crushed pieces of natural stone for expressing the pattern. Moreover, the resin composition 5 may contain a filler such as calcium carbonate or aluminum hydroxide, or a coloring pigment.

The sink 20 and the top plate 10 may be made of the same resin composition 5 or may be made of different resin compositions 5 .

As shown in FIGS. 1(a) and 1(b), the top plate 10 has an opening 11 for mounting the sink 20, and the lower surface of the peripheral edge of the opening 11 is the joint portion with the sink 20. A mounting surface portion 13 is formed, and a permanent magnet 14 is embedded in the mounting surface portion 13 . A crosspiece 17 is fixed outside the mounting surface portion 13 so as to surround the opening 11 . This crosspiece 17 is required when reinforcing means (see FIG. 5), which will be described later, is used, and may not be attached when the reinforcing means is not used.

As shown in FIGS. 1(a) and 1(b), the sink 20 has a substantially rectangular bottom portion 21, a wall portion 22 erected from the peripheral edge portion of the bottom portion 21, and a flange projecting laterally from the upper end of the wall portion 22. It has a portion 24 and has a shape with an upper opening. In addition, it is desirable that the flange portion 24 is formed along the entire circumference of the upper opening 23 . The upper opening 23 substantially matches the opening 11 of the top plate 10 in shape and size.

An upper surface of the flange portion 24 serves as a mounting surface portion 25 which is a joint portion with the top plate 10 , and an attracted material 26 made of a ferromagnetic material that is attracted to the permanent magnet 14 is embedded in the flange portion 24 .

Further, the permanent magnets 14 of the top plate 10 are covered with a resin layer 15 on the lower surface thereof. In other words, the permanent magnet 14 is embedded so as not to be exposed to the outer surface (see FIG. 1). The adsorbed material 26 of the flange portion 24 of the sink 20 is also covered with a resin layer 27 so that the upper surface thereof is not exposed to the outside (see FIG. 1).

As shown in FIG. 1B, the top plate 10 and the sink 20 are joined to each other by the permanent magnets 14 embedded in the top plate 10 attracting the adsorbed material 26 on the sink 20 side. . Since both the permanent magnet 14 and the material to be attracted 26 are covered with the resin layers 15 and 27 , their bonding is due to the attraction of the permanent magnet 14 via the resin layers 15 and 27 .

Further, the top plate 10 and the sink 20 may be fixed only by attraction by the permanent magnet 14, but as shown in FIG. may be strengthened. Further, other reinforcing means may be used to complement the attractive force of the permanent magnets 14 . This will be discussed later.

In the case of the conventional bonding method using an adhesive, since the adhesive hardens to stabilize the overall shape, it must be left as it is until the adhesive is effective. On the other hand, in the case of this embodiment, even if the adhesive 7 is used, the shape can be stabilized and maintained by attraction by the permanent magnet 14 .

The permanent magnets 14 may be embedded in the periphery of the opening 11 of the top plate 10 so that the plurality of permanent magnets 14 are discontinuous, as shown in FIG. 2, for example. The adsorbed material 26 may be embedded in the flange portion 24 of the sink 20 at a position substantially matching the permanent magnet 14 on the top plate 10 side in plan view. The permanent magnet 14 and the material to be attracted 26 may have various shapes, for example, a rectangular shape as shown in FIG.

As the permanent magnet 14, various magnets such as neodymium magnets, ferrite magnets, alnico magnets, samarium-cobalt magnets, etc. can be used. Ferromagnetic materials such as iron, cobalt, and nickel can be used as the material to be adsorbed 26 . A permanent magnet may be used as the material to be attracted 26 .

Such a counter with sink 1 can be manufactured by executing the manufacturing procedure shown below. In this embodiment, a thermosetting resin is used as the synthetic resin, which is the main material of the resin composition 5, and an organic peroxide is added as a curing agent.

(1) Burial process (see Fig. 3)
In this step, the permanent magnet 14 is embedded in one of the sink 20 and the top plate 10 at the joint portions 13 and 25 between the sink 20 and the top plate 10, and the material 26 to be attracted by the permanent magnet 14 is embedded in the other. It is a process to do. Specifically, for example, the embedding step shown in FIG. 3 may be performed. Both the permanent magnet 14 and the material to be attracted 26 are embedded by molding using a mold 30 . FIG. 3 is a procedure diagram common to the permanent magnet 14 and the adsorbed material 26. As shown in FIG.

(1-1) As the mold 30, an upper mold 31 and a lower mold 33 are prepared. In order to form the top plate 10 having a predetermined thickness with the upper mold 31 and the lower mold 33 , spacers 34 for forming thickness are arranged on the inner bottom surface of the lower mold 33 .
(1-2) Next, before closing the upper mold 31, the liquid resin composition 5 is thinly supplied to the inner bottom surface of the lower mold 33, and the resin composition 5 is supplied at normal temperature or at a slightly elevated temperature. to gel. The resin composition 5 injected in this manner is a portion that becomes the resin layers 15 and 27 when cured.
(1-3) After that, the permanent magnet 14 (adsorbed material 26) is placed on the surface of the gelled resin composition 5, the upper mold 31 is closed, and the resin composition 5 is poured into the injection port 32 of the upper mold 31. Inject more.
(1-4) In this state, the resin composition 5 in the mold 30 is cured by heating at 80 to 100°C.

By carrying out the above procedure, the layer disposed below the permanent magnets 14 is formed as the resin layer 15 exposed on the surface side of the mounting surface portion 13 of the top plate 10 as shown in FIG. Also, the layer arranged on the upper side of the material to be adsorbed 26 is formed as a resin layer 27 exposed on the surface side of the mounting surface portion 25 of the sink 20 . Thus, the permanent magnet 14 and the material to be attracted 26 are embedded without being exposed on the surface.

(2) Assembly process (see FIGS. 1(a), 1(b) and 2)
In this step, the permanent magnet 14 and the material 26 to be adsorbed are brought into contact or close to each other (in the example of FIG. 1, close), and the sink 20 is arranged at a predetermined position on the top plate 10 and joined. Specifically, the top plate 10 with the permanent magnets 14 embedded in the peripheral portion of the opening 11 and the sink 20 with the adsorbed material 26 embedded in the flange portion 24 are respectively prepared by the procedures shown in FIGS. 1(a) and 1(b). All you have to do is assemble it. Alternatively, the top plate 10 may be placed face down on the work surface, and the sink 20 may be turned upside down and positioned thereon to be joined.

Alternatively, as shown in FIG. 1(a), the adhesive 7 may be applied to one of the mounting surfaces 13 and 25 before joining the two members. Alternatively, the adhesive 7 may be injected from the peripheral portions of the joint (outer and inner circumferences of the mounting surfaces 13 and 25) after the permanent magnets 14 are attracted to each other. Moreover, after joining by attraction of the permanent magnet 14, a sealing material may be supplied so as to straddle the seam between the top plate 10 and the sink 20 for waterproofing.

According to the manufacturing method of the counter with a sink shown above, since it is the structure which mutually joins by attraction|suction by the permanent magnet 14, efficiency and speedup of manufacture of the counter with a sink 1 can be achieved. This is convenient because even if there is misalignment in the alignment stage, it can be redone.

In particular, when the top plate 10 and the sink 20 are joined only by the attraction force of the permanent magnet 14, the adhesive 7 is not used, so the application work time and curing time of the adhesive 7 can be saved, and the assembly is simple and easy. The counter 1 with a sink can be quickly assembled. In addition, joining can be redone at any time.

In the case of the conventional method of bonding the top plate 10 and the sink 20 together using an adhesive, as described above, it is necessary to leave the assembly until the adhesive hardens, resulting in poor production efficiency. However, in the case of this embodiment, since the shape can be stabilized and maintained by the attraction by the permanent magnet 14, even if the adhesive 7 is used, it is not intended to maintain the shape. It is not necessary to leave it until it hardens. Therefore, even when the adhesive 7 is used in this embodiment, it is possible to improve the efficiency and speed of manufacturing the counter 1 with the sink.

Moreover, since the top plate 10 and the sink 20 can be easily joined and assembled, the assembly process can be carried out on site. By doing so, the chances of handling both members in a combined state are reduced, and the members are easier to store, transport, and otherwise handle.

Further, according to the counter 1 with a sink in which the top plate 10 and the sink 20 are joined only by the attraction force of the permanent magnet 14, the removal of the sink 20 can be easily and quickly performed. In particular, when the sink 20 is removed, the joint 13 of the top plate 10 is not damaged, and there is no risk of leaving adhesive traces on the joint 13. Therefore, almost no maintenance work occurs, and the replacement work can be completed only on site. can be made In addition, since the number of man-hours required can be reduced, renovation costs can be reduced.

Furthermore, according to the sink-equipped counter 1 illustrated in FIGS. 1 to 3, since the surface sides of the permanent magnet 14 and the adsorbed material 26 are covered with the resin layers 15 and 27, the embedded members can be protected. . Moreover, even when water enters between the mounting surface portions 13 and 25, it is possible to prevent rust from occurring.

Even when the resin layers 15 and 27 are provided on the surface side, if a strong permanent magnet 14 is used, and if the permanent magnet 14 is provided over a wide range of the mounting surface portion 13, a sufficient attracting force can be obtained. The sink 20 can be held only by the adsorption force of .

By providing the resin layers 15 and 27 on the surface side and enhancing the attraction force of the permanent magnet 14 in this manner, the permanent magnet 14 and the attracted material 26 can be protected without using the adhesive 7 . Further, if the adhesive 7 is added, the holding of the sink 20 by the top plate 10 can be strengthened.

Next, a sink-equipped counter 1 according to another embodiment will be described with reference to FIG. 4(a) to 4(c) are examples in which at least one of the permanent magnet 14 and the attracted material 26 is exposed at the mounting surface portions 13 and 25 of the top plate 10 and the sink 20. FIG.

In these examples, since the permanent magnet 14 and the material to be attracted 26 are exposed to at least one of the mounting surfaces 13 and 25, the separation distance between the permanent magnet 14 and the material to be attracted 26 is shortened. In comparison, the adsorption force is stronger, and the holding force of the sink 20 by the top plate 10 is also improved. Of these three examples, the one shown in FIG. 4A has the highest attractive force because no other object is interposed between the permanent magnet 14 and the member 26 to be adsorbed.

In order to bury the permanent magnet 14 and the attracted material 26 so as to be exposed in the mounting surface portions 13 and 25, the burying procedure shown in FIG. 4(d) may be performed. That is, first, the permanent magnet 14 (the adsorbed material 26) is placed on the inner bottom surface of the lower mold 33, and then the resin composition 5 is injected from the injection port 32 of the upper mold 31, and then the resin composition 5 is poured. It should be hardened.

In the case where the permanent magnet 14 and the material to be adsorbed 26 are arranged as shown in FIGS. The permanent magnet 14 and the attracted material 26 are likely to deteriorate. Therefore, the surface where the permanent magnet 14 and the attracted material 26 are exposed may be covered with the adhesive 7 (see FIG. 1(a)). In addition, the addition of the adhesive 7 improves the holding force of the sink 20 by the top plate 10 .

In order to improve the holding force of the sink 20 by the top plate 10, as in the example shown in FIGS.

In the example of FIG. 5(a), a resin material 19 is injected into the back side of the flange portion 24 on the back side of the top plate 10 and hardened to strengthen the holding of the sink 20. FIG. In this case, the crosspiece 17 surrounding the flange portion 24 of the sink 20 may be used as a formwork to fix the resin material 19 to the entire flange portion 24 .

Moreover, the example of FIG.5(b) uses the support member 18, and supports the flange part 24 from the back side. The support member 18 is an L-shaped member, one of which is screwed to the crosspiece 17 and the other of which presses the flange portion 24 from below. A plurality of supporting members 18 may be arranged along the longitudinal direction of crosspieces 17 at appropriate positions at intervals. Furthermore, as in the case of FIG. 5A, the resin material 19 may be injected into the back side of the flange portion 24 and cured.

By using the reinforcing means in this manner, the holding force of the sink 20 is improved. Further, when the adhesive 7 is not used between the mounting surfaces 13 and 25 and the support member 18 (without injection of the resin material 19) shown in FIG. Efficient replacement work can be performed without removing adhesives or resins. Of course, there is almost no possibility that the top plate 10 will be damaged.

1 counter with sink 10 top plate 13 mounting surface (joint part)
14 Permanent magnet 15 Resin layer 20 Sink 24 Flange part 25 Mounting surface part (joint part)
26 Material to be Adsorbed 27 Resin Layer 7 Adhesive

Claims (4)

A counter with a sink in which a resin sink and a resin top plate are joined,
A sink characterized in that a permanent magnet is embedded in one of said sink and said top plate, and a material to be attracted to said permanent magnet is embedded in the other of said sink and said top plate at a joint portion between said sink and said top plate. counter with. In claim 1,
A counter with a sink, wherein at least one of the permanent magnet and the material to be attracted is embedded such that a surface side thereof is covered with a resin layer. A method for manufacturing a counter with a sink for joining a resin sink and a resin top plate,
an burying step of burying a permanent magnet in one of the sink and the top plate and burying a material to be attracted to the permanent magnet in the other of the joint between the sink and the top plate;
A method of manufacturing a counter with a sink, comprising an assembling step of bringing the permanent magnet and the material to be attracted into contact or proximity to arrange and join the sink at a predetermined position on the top plate. In claim 3,
A method for manufacturing a counter with a sink, wherein in the assembling step, an adhesive is supplied to a joint portion between the sink and the top plate.

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