JP3167404U - sink - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sink in which a top plate and a sink are joined with a strong adhesive strength. SOLUTION: A top plate 4 having a plywood 5 bonded to a lower surface and having a sink mounting opening 4a, and a cured product 8 of a self-adhesive silicone rubber composition arranged on a peripheral edge of the sink mounting opening 4a. A sink 6 having a flange 6a and joined to the top plate 4 via a cured product 8 of the self-adhesive silicone rubber composition, and a fixture 7 that abuts on the back surface of the flange 6a to fix the flange 6a. A sink 1 including a cured product 9 of a thermosetting resin arranged on the back surface of the flange 6a. [Selection diagram] Fig. 1

Description

  The present invention relates to a sink, and more particularly to a sink in which a top plate and a sink are joined with a strong adhesive strength.

  In recent years, various system kitchens and the like that contribute to facilitating housework are installed in houses. Although not particularly illustrated, the system kitchen is generally composed of a counter made up of a top plate, a sink, and the like, and a storage cabinet.

  System kitchen counters usually have a liquid or paste-like sealing material (eg, silicone sealant) placed on the peripheral edge of the lower surface opening of the top plate, and a sink flange on the peripheral edge of the lower surface opening of the top plate. It is manufactured by bonding with a sealing material that has been cast. The counter and the cabinet are assembled after being brought into the installation place.

  By the way, although a liquid or paste-like sealing material can secure a high adhesive strength, for example, it takes a long time to cure in winter when the humidity or temperature is low, so that workability may be inferior. In addition, the liquid or paste-like sealing material may flow out from the joint when it is placed or when the top plate and the sink are joined. Also, if the sealing agent is not sufficiently cured, it will flow even after curing and from the joint. May sag. When the sealing material flows out or hangs down in this way, it is necessary to remove them, which is a cause of reducing workability.

  As a technique that focuses on workability in manufacturing a sink or the like, for example, Patent Literature 1 includes, for example, “opening member, covering body covering the opening of the opening member, opening peripheral edge portion of the opening member, and outside of the covering body. And a sealing material that adheres to the peripheral portion, and the sealing material is made of silicone rubber having a fixed shape ”(Claim 1), in particular,“ the opening member is a top having an opening. 2. The sealing material according to claim 1, wherein the sealing member is a sink having a substantially U-shaped cross section attached to the peripheral portion of the opening rear surface of the top plate, and a sink holding metal fitting is attached to the rear surface of the top plate. "Attachment structure" (Claim 2) is described.

  Further, Patent Document 2 states that “an artificial marble top plate provided with an opening for attaching a sink at a predetermined position, and a peripheral edge of the opening, which is attached to the entire periphery, has no fluidity, and is self-adhesive. A silicone rubber tape, a silicone caulking material disposed on the outer peripheral side of the tape, and a stainless steel sink having a flange. The sink passes through the tape and the caulking material, and There is described "a sink that is integrally joined to the periphery of the opening of the plate in a state where the flange is overlapped".

  Patent Document 3 describes an example in which “curable regular silicone adhesive” is used for “assembly of top plate and sink” (column 0043).

Japanese Patent Laid-Open No. 2004-008246 Japanese Patent No. 4278808 JP 2004-359838 A

  As described above, although a technique that is focused on workability at the time of manufacturing a sink or the like is known, in recent years, particularly when a liquid or paste-like adhesive is used, for example, “a gel-like fluidity is provided. In the technique of Patent Document 2 using the “silicone caulking material” (column 0017 of Patent Document 2), it is required to secure a strong adhesive strength between the sink and the top plate and the sink while further improving workability. It has been.

  An object of the present invention is to provide a sink in which a top plate and a sink are joined with a strong adhesive strength.

As a first means for solving the above problems,
Claim 1 is a top plate having a plywood bonded to the lower surface and having a sink mounting opening, and a cured product of a self-adhesive silicone rubber composition disposed on a peripheral edge of the sink mounting opening on the lower surface. A sink that has a flange extending outward from an opening edge, and is joined to the top plate through a cured product of the self-adhesive silicone rubber composition; A sink comprising: a fixing tool for fixing the thermosetting resin; and a cured product of a thermosetting resin disposed on the back surface of the flange,
Claim 2 is the sink according to claim 1, wherein the cured product of the self-adhesive silicone rubber composition is disposed over the entire circumference of the peripheral edge.
Claim 3 is the sink according to claim 1 or 2, wherein the cured product of the thermosetting resin is disposed so as to embed a contact portion between the flange and the fixture.
Claim 4 is the sink according to any one of claims 1 to 3, wherein an edge of the flange is in contact with the plywood.
The fifth aspect of the present invention is the sink according to any one of the first to fourth aspects, wherein the thermosetting resin is a urethane resin or an epoxy resin.

  The sink according to the present invention includes a top plate having a plywood bonded to the lower surface and having a sink mounting opening, and a cured product of a self-adhesive silicone rubber composition disposed on the peripheral edge of the sink mounting opening on the lower surface. A sink having a flange and bonded to the top plate via the cured product, preferably the peripheral edge and the cured product compressed by the flange, and a fixture that contacts the back surface of the flange and fixes the flange And a cured product of a thermosetting resin disposed on the back surface of the flange, so that the cured product of the self-adhesive silicone rubber composition, preferably a large joint area between the peripheral portion and the flange by the compressed cured product Can be secured, and the fixing of the flange with a fixing tool can be reinforced with a cured product of a thermosetting resin. As a result, the bonding strength of a conventional sink or the like using a liquid or paste adhesive A top plate and a sink are joined by strong adhesion strength as comparable. Therefore, according to this device, it is possible to provide a sink in which the top plate and the sink are joined with a strong adhesive strength.

FIG. 1 is a schematic cross-sectional view showing a main part of a sink that is an example of a sink according to the present invention. FIG. 2 is a schematic cross-sectional view showing a junction of a sink that is an example of a sink according to the present invention. FIG. 3 is a schematic cross-sectional view showing a junction of a sink that is another example of the sink according to the present invention. FIG. 4 is a schematic cross-sectional view showing an outline of a joining portion of a sink which is still another example of the sink according to the present invention.

  As will be described later in detail, the sink according to the present invention includes a top plate, a sink, a fixture, a cured product of a self-adhesive silicone rubber composition, and a cured product of a thermosetting resin. In addition, the sink according to the present invention is a self-mounting device interposed between the top plate and the sink in place of the fluid adhesive or caulking material, that is, without using such an adhesive or caulking material. One characteristic is that the top plate and the sink are joined with a cured product of the adhesive silicone rubber composition. Therefore, the sink according to the present invention has an adhesive, a sealing agent, a caulking agent, and the like between them for the purpose of joining the top plate and the sink in addition to the cured product of the self-adhesive silicone rubber composition. These cured products are not provided and are not arranged side by side. Further, the sink according to the present invention has one feature in that the fixing strength of the flange by the fixing tool is reinforced, that is, enhanced by a cured product of a thermosetting resin cured on the back surface of the flange.

  A sink that is an example of a sink according to the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the sink 1 includes a top plate 4 having a sink mounting opening 4a, a plywood 5 joined to the lower surface of the top plate 4, and a sink for the top plate 4 by a flange 6a. A self-adhesive silicone rubber composition disposed between the top plate 4 and the sink 6; a sink 6 joined to the mounting opening 4a; a fixture 7 provided on the plywood 5 for fixing the flange 6a; A cured product 8 and a cured product 9 of a thermosetting resin disposed on the back surface of the flange 6a are provided.

  As shown in FIGS. 1 and 2, the top plate 4 is a plate-like member having a flat surface, and a substantially rectangular sink mounting opening having substantially the same opening area and shape as the opening of the sink 6 described later. The part 4a is formed so as to penetrate in the thickness direction. The sink mounting opening 4a is rounded at the four corners. The top plate 4 is made of, for example, a stone material such as a metal such as stainless steel, an artificial (artificial) marble, or a natural marble.

  As shown in FIGS. 1 and 2, the plywood 5 is a plate-like member having a flat surface, and has a similar shape having a larger opening area than the opening area of the sink mounting opening 4a, that is, the four corners are rounded and chamfered. A substantially rectangular penetrating portion 5a is formed so as to penetrate in the thickness direction. The plywood 5 is usually made of wood, resin, metal, or the like and has an appropriate thickness, for example, 10 to 20 mm. The plywood 5 is bonded to the lower surface of the top plate 4 with an adhesive or preferably with a connecting member such as a bolt so that the centers of the sink mounting opening 4a and the through-hole 13 coincide. . Therefore, the plywood 5 is not joined to the lower surface of the top plate 4, that is, the peripheral portion of the sink mounting opening 4 a on the back surface, and the bottom surface of the top plate 4 is exposed. In this way, the top plate 4 is joined to the plywood 5 having the through portion 5a larger than the sink mounting opening 4a. This plywood 5 reinforces the flatness of the top plate 4 and enables mounting of a fixture 7 described later.

  As shown in FIGS. 1 and 2, the sink 6 has a flat cylindrical shape with one end opened, and has a drain port 6b at the bottom. The sink 6 has a flange 6a that extends substantially perpendicularly outward from the opening edge of the peripheral wall. The flange 6a is projected outwardly from the opening edge, and is formed so as to go around the opening edge of the sink 6 in the circumferential direction, and is used for joining the top plate 4 and the sink 6 to each other. The In this device, the surface of the flange 6a joined to the lower surface of the top plate 4 is referred to as the front surface, and the opposite side, that is, the bottom surface of the sink 6 is referred to as the back surface. The sink 6 is a flat cylindrical body having a substantially U-shaped or C-shaped cross section, for example, and has a horizontally long cross-sectional substantially dish shape. The sink 6 is made of stainless steel having excellent corrosion resistance or the like by press molding or the like, and is made of enamel or the like. The opening of the sink 6 has substantially the same opening area and shape as the opening of the sink mounting opening 4a. The peripheral edge portion of the flange 6a is slightly bent in the rear surface side of the flange 6a, that is, in the depth direction of the sink 6, and the edge thereof is in contact with the inner surface of the through portion 5a of the plywood 5.

  As shown in FIGS. 1 and 2, the fixture 7 includes a fixing plate 7 a made of a substantially L-shaped wedge-shaped member and a screw 7 b that fixes the fixing plate 7 a to the plywood 5. ing. The fixing plate 7a has a flange so that the tip end abuts against the back surface of the flange 6a of the sink 6 joined to the top plate 4 when it is fixed to the plywood 5, that is, the sink 6 does not fall off. 6a is fixed. Therefore, the fixture 7 can also be referred to as a presser fitting. The fixing plate 7a has a screw hole through which the screw 7b passes. The fixtures 7 are provided on the plywood 5 at intervals of 200 to 500 mm, for example, along the circumferential direction of the penetrating part 5a.

  The cured product 8 of the self-adhesive silicone rubber composition is a cured product obtained by curing the self-adhesive silicone rubber composition. The cured product 8 is disposed over the entire periphery of the sink mounting opening 4a on the lower surface of the top plate 4, and is compressed by the peripheral portion of the top plate 4 and the flange 6a. That is, the cured product 8 of the self-adhesive silicone rubber composition is filled in a compressed state in a small gap between the top plate 4 and the flange 6a, for example, a gap of 1 mm or less, preferably 0.3 to 0.6 mm. It is in pressure contact with the top plate 4 and the flange 6a with a large contact area.

  In the cured product 8 of the self-adhesive silicone rubber composition, the molded product of the self-adhesive silicone rubber composition is cured while being compressed between the lower surface of the peripheral edge of the sink mounting opening 4a and the surface of the flange 6a. Become. The molded article of the self-adhesive silicone rubber composition is formed by, for example, molding a self-adhesive silicone rubber composition having the following composition by a generally known rubber molding method, for example, by extrusion using an extruder. Moreover, it can shape | mold into a desired shape with a two roll, a calender roll, etc. The self-adhesive silicone rubber composition is molded under conditions that the self-adhesive silicone rubber composition does not cure. For example, in the case of a silicone rubber composition to be described later, it is preferable to mold at a low temperature environment, and specifically to mold at 0 ° C. or less. Further, in the case of the curable fixed silicone rubber composition described later, it is preferable to mold in a low humidity environment so that the curing reaction does not proceed with moisture or moisture in the atmosphere. It is preferable to mold at% RH or less.

  As for the shape in which the self-adhesive silicone rubber composition is molded, for example, a long band-shaped body having a substantially rectangular, circular, elliptical cross section, etc. may be mentioned. The diameter of the circumscribed circle circumscribing the outer diameter or the cross-sectional shape of the strip is preferably 2 to 4 mm, for example. Examples of the self-adhesive silicone rubber composition molded into such a belt-like body include, for example, “Polymer Ace HR-2388S-2025G” (addition curable silicone rubber composition), “Polymer Ace HR-2388S-40G” (addition curable type). Silicone rubber composition), "Polymer Ace HJ-14S" (condensation curable silicone rubber composition), "Polymer Ace HJ-1588L" (condensation curable silicone rubber composition) (all manufactured by Shin-Etsu Polymer Co., Ltd .: trade name), etc. Is mentioned.

  Therefore, the self-adhesive silicone rubber composition is a silicone rubber composition having adhesiveness and has a regularity, and is neither liquid nor pasty.

This self-adhesive silicone rubber composition has self-adhesiveness. Here, the self-adhesive property refers to a property of adhering or sticking to a member in which the self-adhesive silicone rubber composition is inserted or arranged with its own adhesive force. In order for the self-adhesive silicone rubber composition to exhibit self-adhesion, there may be mentioned a case where the silicone rubber composition contains an adhesive silicone rubber or a case where it contains an adhesive component. In this device, the adhesive strength of the self-adhesive silicone rubber composition is not particularly limited as long as it has a self-adhesive property, and is appropriately determined according to the dimensions and applications of the members to be joined. For example, the self-adhesive property includes a tensile strength before curing of the self-adhesive silicone rubber composition of 0.01 N / mm ² or more. The tensile strength can be measured according to JIS K6251. That is, a 2 mm thick sheet of a self-adhesive silicone rubber composition was prepared using two rolls sufficiently cooled in an environment of 23 ° C. and 10% RH, and this sheet was prepared in an atmosphere of 23 ° C. and 50%. Using a molded product obtained by curing for 2 weeks, a “No. 3 dumbbell test piece” described in JIS K6251 was prepared, and a value measured under a tensile speed of 500 mm / min was used as a tensile strength (N / mm ² ).

  The self-adhesive silicone rubber composition can be molded into a desired shape and retains the shape after molding. In other words, the self-adhesive silicone rubber composition has no fluidity and has a characteristic of being deformed by compression. Specifically, the self-adhesive silicone rubber composition preferably has a Williams plasticity (25 ° C.) of 150 to 450, particularly preferably 150 to 350. When the Williams plasticity is within the above range, it can be molded into a desired shape in an uncured state and easily deforms when compressed even though it can retain its shape. It fits well and has excellent adhesion with them and exhibits high adhesive strength. The Williams plasticity is measured according to JIS K6249: 1997 (Testing method for uncured and cured silicone rubber). That is, 2 g of a self-adhesive silicone rubber composition was used as a spherical test piece in an environment of 25 ° C., and this test piece was sandwiched between cellophane paper and a parallel plate plasticity meter with a dial gauge (“Williams Plastometer manufactured by Ueshima Seisakusho). )), And after 5 kg of load is applied and left for 3 minutes, the dial gauge scale is read to millimeters, the thickness of the test piece is recorded, and this value is multiplied by 100 to obtain the Williams plasticity. .

  In order to maintain the moldability by adjusting the Williams plasticity of the self-adhesive silicone rubber composition within the above range, for example, the type and / or blending amount of each component contained in the self-adhesive silicone rubber composition is adjusted. Specific examples include methods for increasing or decreasing the amount of raw rubber such as dimethyl silicone and methyl vinyl silicone contained in the self-adhesive silicone rubber composition, and those contained in the self-adhesive silicone rubber composition. Examples include a method of changing or increasing or decreasing the type or blending amount of additives such as silica, a method of combining these methods, and the like.

  As a self-adhesive silicone rubber composition having such characteristics, for example, an addition-curable silicone rubber composition containing an adhesive silicone rubber, or a condensation-curable silicone rubber containing an adhesive silicone rubber Examples thereof include compositions. In view of workability, the self-adhesive silicone rubber composition is preferably a condensation curable silicone rubber composition.

  The addition-curable silicone rubber composition contains A) an organopolysiloxane containing at least two alkenyl groups and B) an organohydrogenpolysiloxane having at least two hydrosilyl groups, and is cured by an addition reaction. Any silicone rubber composition may be used, and examples thereof include a silicone rubber composition described in JP-A-2004-315571 (hereinafter sometimes referred to as a silicone rubber composition).

  The silicone rubber composition comprises A) an organopolysiloxane containing at least two alkenyl groups, B) an organohydrogenpolysiloxane having at least two hydrosilyl groups, C) a hydrosilylation catalyst, and D) packing. An addition curable silicone rubber composition containing an agent, wherein 2 mol% or more of all the substituents bonded to the silicon atom of the organopolysiloxane after curing are substituted with 2 or more carbon atoms other than a fluoroalkyl group or A silicone rubber composition characterized by being an unsubstituted monovalent hydrocarbon group.

  This silicone rubber composition preferably contains, in addition to the components A) to D), an E) adhesion imparting component that imparts and improves adhesiveness as desired. E) As an adhesion imparting component, for example, a silane coupling agent and a partial hydrolyzate thereof, an epoxy group, an acid anhydride group, an organic compound having an α-cyanoacryl group, and a siloxane compound containing these groups, or And organic compounds or siloxane compounds having both of these groups and alkoxysilyl groups or hydrosilyl groups; titanium compounds such as titanium coupling agents and titanates. E) The adhesion-imparting component preferably contains 0.01 to 10 parts by mass with respect to 100 parts by mass of the A) organopolysiloxane.

  In addition to the components A) to D), the silicone rubber composition includes, for example, fumed titanium oxide, carbon black, diatomaceous earth, iron oxide, aluminum oxide, aluminosilicate, zinc oxide, aluminum hydroxide, and the like. You may contain the filler etc. for assign | providing functions, such as a conductive property, heat conductivity, a flame retardance, etc., such as the filler which processed the surface of the filler with the said organosilicon compound.

  In this silicone rubber composition, an addition cross-linking reaction proceeds and cures at room temperature or a temperature equal to or higher than room temperature to adhere the adherend with strong adhesive strength. Curing of the silicone rubber composition is completed at room temperature, and an example of curing conditions is almost completed at 23 ° C. and 7 days.

  The condensation curable silicone rubber composition includes a diorganopolysiloxane having a hydroxyl group or hydrolyzable group bonded to at least two silicon atoms in the molecule, and a silane having two or more hydrolyzable groups in one molecule. Or a partially hydrolyzed silicone rubber composition that cures by a condensation reaction. For example, a curable regular silicone rubber composition described in JP-A No. 2004-175959 (hereinafter, curable regular form). May be referred to as a silicone rubber composition).

  This curable regular silicone rubber composition is based on diorganopolysiloxane having a hydroxyl group or hydrolyzable group bonded to at least two silicon atoms in the molecule, and two hydrolyzable groups in one molecule. A condensation curable silicone rubber composition containing the above silane or a partial hydrolyzate thereof, wherein 2 mol% or more of all substituents bonded to silicon atoms of the base polymer diorganopolysiloxane have 2 carbon atoms A curable regular silicone rubber composition which is the above-described substituted or unsubstituted monovalent hydrocarbon group and is shaped into a fixed shape before curing, and has a plasticity of 150 to 450 at 25 ° C. by a parallel plate plasticity meter. .

  This curable fixed silicone rubber composition further comprises a crosslinking agent, a curing catalyst, a filler, a thixotropic agent, a heat resistance improver, a cold resistance improver, a dehydrating agent, a rust preventive agent, E) an adhesion imparting component, You may contain a liquid reinforcing agent, a diluent, etc.

  This curable regular silicone rubber composition is cured by condensation and crosslinking at room temperature due to moisture, and adheres the adherend with strong adhesive strength. Curing of the curable fixed silicone rubber composition is completed in an environment having a certain level of humidity. For example, curing conditions are almost completed in 3 to 7 days in an environment of 20 ° C. and 55% RH.

  The cured product 9 of the thermosetting resin is a cured product obtained by curing the thermosetting resin, and is disposed on the back surface of the flange 6a, preferably at least a part of the fixture 7, for example, the flange 6a and the fixture. 7 is arranged so as to bury the tip of the fixed plate 7a, specifically, the abutting portion. Although the thermosetting resin used as the hardened | cured material 9 is not specifically limited, A urethane resin, an epoxy resin, etc. are mentioned suitably.

  The sink 1 includes a top plate 4, a plywood 5, a sink 6, and a fixture 7, and is assembled with a cured product 8 of a self-adhesive silicone rubber composition and a cured product 9 of a thermosetting resin. In the sink 1, in order to join the top plate 4 and the sink 6 in addition to the cured product 8 in the vicinity of the cured product 8 of the self-adhesive silicone rubber composition, an adhesive, Sealing agents, caulking agents and the like and cured products thereof are not provided. In the sink 1, the sink mounting opening 4 a has substantially the same opening area and shape as the sink 6 opening. Therefore, as shown in FIG. 2, the inner surface of the sink mounting opening 4 a is self-adhesive. The exposed end surface of the cured product 8 of the conductive silicone rubber composition and the inner surface of the sink 6 are substantially flush.

  This sink 1 has the above-mentioned characteristics. That is, in the sink 1, the sink 6 is a cured product of the self-adhesive silicone rubber composition disposed over the entire periphery of the lower surface of the sink mounting opening 4 a in the top plate 4 having the plywood 5 bonded to the lower surface. 8, the sink mounting opening 4 a is integrally joined to the top plate 4 so as to cover the bottom surface side of the top plate 4. At this time, the cured product 8 of the self-adhesive silicone rubber composition is filled into a small gap between the top plate 4 and the flange 6a, that is, a gap smaller than the diameter of the molded article of the self-adhesive silicone rubber composition. The contact area is pressed against the top plate 4 and the flange 6a. Therefore, the top plate 4 and the flange 6a, that is, the sink 6 are firmly joined by the cured product 8 of the self-adhesive silicone rubber composition.

  Further, the cured product 9 of the thermosetting resin disposed on the back surface of the flange 6 a joined to the top plate 4 embeds a contact portion between the flange 6 a and the fixing plate 7 a, so that the flange 7 is fixed by the fixture 7. The fixing is reinforced. Therefore, in addition to the strong bonding by the cured product 8 of the self-adhesive silicone rubber composition by the cured product 9 of the thermosetting resin, the fixing state of the flange 6a by the cured product 9 of the fixing tool 7 and the thermosetting resin is changed. Can be solid.

  As described above, the sink 1 is formed by bonding the top plate 4 and the sink 6 with the cured product 8 of the self-adhesive silicone rubber composition interposed between the top plate 4 and the sink 6, and the flange 6a. Since the fixing strength of the flange 6a by the fixture 7 is reinforced by the cured product 9 of the thermosetting resin cured on the back surface, it is comparable to the joining strength of a conventional sink or the like using a liquid or paste adhesive. The top plate 4 and the sink 6 are joined with such a strong adhesive strength.

  A sink that is another example of the sink according to the present invention will be described with reference to the drawings. As shown in FIG. 3, the sink 2 has a similar shape in which the sink mounting opening 4 a in the top plate 4 has an opening area smaller than the opening of the sink 6, and is made of a self-adhesive silicone rubber composition. The cured product 8 and the flange 6a are basically the same as the sink 1 except that the cured product 8 and the flange 6a are located outside the sink mounting opening 4a. That is, the sink 2 also has the above characteristics.

  A sink that is another example of the sink according to the present invention will be described with reference to the drawings. As shown in FIG. 4, the sink 3 has a similar shape in which the sink mounting opening 4 a in the top plate 4 has a larger opening area than the opening of the sink 6, and the flange 6 a has the sink mounting opening. It is basically the same as the sink 1 except that it protrudes inside 4a. That is, the sink 3 also has the above-described characteristics.

  Thus, the sink according to the present invention having the above-described features can secure a large bonding area between the top plate and the flange with a cured product of the compressed self-adhesive silicone rubber composition, and can cure the thermosetting resin. The fixing of the flange by the fixture can be reinforced by the object, and the top plate and the sink are bonded with a strong bonding strength comparable to the bonding strength of a conventional sink or the like using a liquid or paste adhesive.

  A preferred example of a manufacturing method of a sink that can manufacture the sink according to the present invention (hereinafter referred to as one manufacturing method of the sink) will be described. One method of manufacturing the sink is that the surface of the flange projecting outward from the opening edge of the sink and the peripheral edge of the sink mounting opening formed on the top plate with the plywood bonded to the lower surface A step of disposing a self-adhesive silicone rubber composition on at least one of the steps; a step of pressing the flange against the peripheral edge; a step of attaching a fixture to the plywood so as to contact the back surface of the flange; And a step of disposing a thermosetting resin.

  A preferred example of the manufacturing method of the sink (hereinafter referred to as a preferred example) is the surface of the flange 6a in the sink 6, preferably the entire circumference, and / or the sink mounting opening 4a in the top plate 4. The step of disposing the self-adhesive silicone rubber composition over the entire periphery, preferably the entire periphery, the step of pressing the flange 6a against the periphery of the sink mounting opening 4a, and the free end of the fixing plate 7a on the flange 6a. A step of screwing the fixture 7 to the plywood 5 so as to abut, a step of removing the self-adhesive silicone rubber composition extruded from between the peripheral edge of the top plate 4 and the flange 6a if desired, and the flange 6a And placing a thermosetting resin on the back surface of the resin, and, if desired, a step of curing the self-adhesive silicone rubber composition and / or the thermosetting resin.

  A manufacturing method for manufacturing the sinks 1 to 3 according to this preferred example will be specifically described below. In the preferred example, first, the top plate 4 and the sink 6 are prepared. The plywood 5 may be joined to the top plate 4 during or after the manufacturing method of the sink according to the present invention, but is preferably joined to the top plate 4 in advance.

  A self-adhesive silicone rubber composition is usually disposed on at least one of the surface of the flange 6a of the prepared sink 6 and the peripheral edge of the sink mounting opening 4a of the top plate 4, preferably over the entire circumference thereof. For example, it mounts so that it may not move. Since this self-adhesive silicone rubber composition is formed into a strip shape, it can be easily and simply disposed.

  In a preferred example, the sink 6 or the top plate 4 on which the self-adhesive silicone rubber composition is arranged is then applied to the self-adhesive silicone rubber composition so that the centers of the sink mounting opening 4a and the through-hole 5a coincide. Overlay and press the material. At this time, the distance of the gap defined between the peripheral edge of the top plate 4 and the flange 6a, that is, the thickness of the compressed self-adhesive silicone rubber composition is, for example, 1.0 mm or less, preferably 0.3 to It is preferable to press-contact the top plate 4 and the sink 6, specifically, the peripheral edge of the top plate 4 and the flange of the sink 6 until the thickness becomes 0.6 mm. In this press-contacting process, it is preferable that the peripheral edge of the top plate 4 and the flange 6a are press-contacted so that the end edge of the flange 6a abuts on the end surface of the plywood 5 joined in advance to the lower surface of the top plate 4.

  In a preferred embodiment, the fixture 7 is then attached to the plywood 5 so that the fixture 7 contacts the back surface of the flange 6a of the sink 6, specifically, the free end of the fixture plate 7a contacts the flange 6a. Attach to. In this example, the fixture 7 is screwed onto the plywood 5 and attached. This step may be performed after the top plate 4 and the sink 6 are pressed and may be performed when the top plate 4 and the sink 6 are pressed. When this step is performed when the top plate 4 and the sink 6 are pressed against each other, that is, the fixing member 7 is screwed to the plywood 5 so that the tip of the fixing plate 7a is brought into contact with the flange 6a so that the top plate 4 and the sink 6 are brought together. The press contact is preferable in that the top plate 4 and the sink 6 can be pressed uniformly.

  When the top plate 4 and the sink 6 are pressure-contacted in this manner, the self-adhesive silicone rubber composition may be extruded from between the peripheral edge of the top plate 4 and the flange 6a. Therefore, in this preferred embodiment, there is a step of removing the self-adhesive silicone rubber composition extruded from between the peripheral edge of the top plate 4 and the flange 6a with a scraping member such as a spatula. Is preferred. At this time, since the self-adhesive silicone rubber composition is not cured, it can be easily and quickly removed, and the shape after the removal can be shaped. This removing step is performed between the step of pressing the peripheral edge of the top plate 4 and the flange 6a and the step of curing a self-adhesive silicone rubber composition described later. For example, the peripheral portion of the top plate 4 And the flange 6a are carried out after the step of pressing.

  Next, a thermosetting resin is preferably placed or placed on the back surface of the flange 6a until the contact portion between the flange 6a and the fixing plate 7a, that is, the tip of the fixing plate 7a is buried. This thermosetting resin is preferably disposed over the entire circumference of the back surface of the flange 6a. Since the thermosetting resin is arranged on the back surface of the flange 6a, the arrangement work of the thermosetting resin is easy. The thermosetting resin can be arranged or placed by a known method.

  In a preferred example, the self-adhesive silicone rubber composition compressed by the top plate 4 and the flange 6a and / or the thermosetting resin disposed on the back surface of the flange 6a is then cured. As the curing conditions, appropriate curing conditions such as temperature, humidity, time, etc. are set according to the curing characteristics of the self-adhesive silicone rubber composition and the thermosetting resin. This curing step can be carried out separately in a step of curing the self-adhesive silicone rubber composition and a step of curing the thermosetting resin. In this case, any curing may be performed first. .

  In this way, the sinks 1 to 3 can be manufactured. In this preferred embodiment, in addition to the self-adhesive silicone rubber composition, an adhesive, a sealing agent, a caulking agent, etc. are provided between the top plate 4 and the flange 6a for the purpose of joining the top plate 4 and the sink 6. It does not have the process of arrange | positioning, and the process of hardening these.

  According to this preferred embodiment, the self-adhesive silicone rubber composition is used without using a fluid adhesive, a sealing agent, and a caulking material that have a significant adverse effect on workability in joining the top plate and the sink. Therefore, the self-adhesive silicone rubber composition does not flow out, and can be easily and quickly removed even if compressed and extruded. According to this preferred embodiment, since the self-adhesive silicone rubber composition is filled in the gap between the peripheral edge of the top plate 4 and the flange 6a so as to have a large contact area, the top plate 4 and the flange 6a are Can be joined with high adhesive strength. In addition, if the thermosetting resin is arranged so that the tip of the fixing plate 7a is embedded, the fixing of the flange 6a by the fixing tool 7 can be reinforced when the thermosetting resin is cured. Therefore, according to this preferred embodiment, high workability can be achieved without using a fluid adhesive, a sealing agent and a caulking material that have a significant adverse effect on workability in joining the top plate 4 and the sink 6. The top plate 4 and the sink 6 can be firmly joined with a strength comparable to that of a conventional sink using a liquid or paste adhesive, for example, with a simple and small number of processing steps.

  As described above, one manufacturing method of the sink is provided on at least one of the surface of the flange projecting outward from the opening edge of the sink and the peripheral edge of the opening for mounting the sink formed on the top plate. A step of disposing a self-adhesive silicone rubber composition; a step of pressing the flange against the peripheral edge; a step of attaching a fixture to the top plate so as to abut the back surface of the flange; and thermosetting the back surface A step of disposing a functional resin. In the step of arranging the self-adhesive silicone rubber composition, the self-adhesive silicone rubber composition is preferably arranged over the entire circumference of at least one of the surface and the peripheral portion, and a thermosetting resin is arranged. In the step, it is preferable to dispose the thermosetting resin so as to embed a contact portion between the flange and the fixture. Moreover, it is preferable to press-contact the said pressure-contacting process so that the edge of the said flange may contact | abut to the plywood previously joined to the lower surface of the said top plate. Furthermore, it is preferable that one manufacturing method of a sink has the process of hardening | curing the said self-adhesive silicone rubber composition and / or the said thermosetting resin, Moreover, the said press-contacting process and the said hardening process, It is preferable to have a step of removing the self-adhesive silicone rubber composition extruded from between the peripheral edge and the flange.

  The sink and preferred examples according to the present invention are not limited to the above-described examples, and various modifications can be made within a range in which the object of the present invention can be achieved. For example, although the said example was demonstrated as a sink of a system kitchen, it is suitable also as a sink of a washbasin counter. In addition, a primer is applied to the peripheral edge or the surface of the flange where the self-adhesive silicone rubber composition is disposed and / or the back surface of the flange or the surface of the fixture where the thermosetting resin is disposed, so that a primer layer is provided. You may do it.

1, 2, 3 Sink 4 Top plate 4a Sink mounting opening 5 Plywood 5a Penetration 6 Sink 6a Flange 6b Drain port 7 Fixing tool 7a Fixing plate 7b Bolt 8 Cured material 9 of self-adhesive silicone rubber composition 9 Thermosetting Hardened resin

Claims (5)

A plywood joined to the bottom surface, and a top plate having a sink mounting opening;
A cured product of a self-adhesive silicone rubber composition disposed on a peripheral edge of the sink mounting opening on the lower surface;
A sink having a flange extending outward from an opening edge, and being joined to the top plate through a cured product of the self-adhesive silicone rubber composition;
A fixture that contacts the back surface of the flange and fixes the flange;
A sink comprising a cured product of a thermosetting resin disposed on the back surface of the flange.   The sink of the said self-adhesive silicone rubber composition is a sink of Claim 1 arrange | positioned over the perimeter of the said peripheral part.   The sink according to claim 1 or 2, wherein the cured product of the thermosetting resin is disposed so as to embed a contact portion between the flange and the fixture.   The said flange is a sink of any one of Claims 1-3 in which the edge is contact | abutted to the said plywood.   The sink according to any one of claims 1 to 4, wherein the thermosetting resin is a urethane resin or an epoxy resin.

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