JP2010174431A - Manufacturing method for kitchen counter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method for a kitchen counter for mounting a sink in an opening part formed in the kitchen counter with excellent workability and achieving excellent designability. <P>SOLUTION: In this manufacturing method for the kitchen counter, the sink 2 includes a flange part 21, a suspending piece 22 extending in substantially vertical direction for a floor surface and being folded back is peripherally provided at a peripheral edge of the flange part 21, and the sink 2 is fitted into the opening part 14 provided in the counter 1 to hold an inner peripheral edge 15 forming the opening part 14 and the suspending piece 22 being folded back through a clearance, which is formed into a substantially rectangular shape when viewed in a plane and is sealed by a silicon packing 4 provided with a rib 41 peripherally on a rear surface of an outer peripheral part to pour a joint resin 8 into it and harden the resin. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a kitchen counter installed in a system kitchen or the like, and more particularly to a kitchen counter manufacturing method in which a sink can be attached to a counter with good design and workability.

  Conventionally, as a kitchen counter used in a system kitchen or the like, a water stop means such as packing is interposed on the back surface near the opening formed in the counter, and a flange portion formed on the outer peripheral edge of the sink is overlapped from below. In addition, there is known a structure in which the sink is attached in a watertight manner using an adhesive or a fixing means such as a bolt.

  In addition to the above, a sink having a flange portion provided with a folded piece extending substantially perpendicular to the floor surface is fitted into the opening portion opened in the counter, and is provided around the back surface in the vicinity of the opening portion. There is also known a kitchen counter having a structure in which a caulking agent is filled and cured in a gap between a crosspiece and the folded piece and this filling layer is used as a joint.

  For example, in JP 2008-156939 A, an opening is formed in a counter made of artificial marble, a crosspiece is provided on the back surface in the vicinity of the opening, and a folded piece extending substantially perpendicular to the floor surface is provided around the periphery. A kitchen counter is disclosed in which a sink having a provided flange portion is fixed to the inner peripheral edge of the opening through a joint.

  That is, in Japanese Patent Application Laid-Open No. 2008-156939, the opening formed in the counter and the sink are joined such that the folded piece faces the inner peripheral edge of the opening and the surface side of the counter and the sink is It is described that it is carried out by injecting and hardening a hard adhesive into a space formed by the crosspiece and the back surface side of the sink in this state while being aligned and held through a gap. Here, a part of the joint portion appears on the surface side of the gap to form a joint.

  FIG. 5 is an explanatory diagram showing a schematic configuration of a conventional kitchen counter manufacturing method. As shown in FIG. 5, a flange portion 21 extending outward is formed at the upper end edge of the outer periphery of the sink 2 that opens upward (downward in the drawing). From the periphery, a folded drooping piece 22 extending substantially perpendicular to the floor surface (upward in the figure) is provided. The bottom surface 23 is provided with a drain outlet outside the figure.

  The sink 2 configured as described above is opened at a substantially central portion of the counter 1 and is fitted into and joined to an opening formed from the inner peripheral edge 15, and a counter top is formed around the opening.

  As shown in the explanatory diagram of FIG. 5, the sink 2 and the counter 1 are usually joined by placing a silicon packing 7 formed in a substantially rectangular shape in plan view on the jig A, and on the same. The counter 1 and the sink 2 are turned upside down and the bonding resin 8 is injected to perform the bonding operation.

  That is, the inner peripheral edge 15 of the opening placed upside down and placed on the jig A and the folded hanging piece 22 suspended from the flange portion 21 are placed so as to maintain a certain gap, and the opening The bonding resin 8 is poured into a space formed by the pier 3 which is provided around the back surface in the vicinity and fixed at a predetermined interval from the inner peripheral edge 15 and is cured.

  At this time, the clamp B attached to the jig A presses the flange portion 21 of the sink 2 from the upper side (points to the upper side in the upside down state) via the pressing piece C indicated by the dotted line, and the flange portion 21 is pressed against the silicon packing 7. On the other hand, the jig A is provided with an exhaust circuit D. By exhausting the exhaust circuit D with a vacuum device, the countertop 11 is firmly adsorbed and fixed to the surface of the jig A.

  In addition, the jig A is provided with a surface heater 9 and, as will be described later, when the environmental temperature is low, such as in winter, or when it is desired to accelerate the curing reaction of the bonding resin, the jig A is energized and heated appropriately. It is designed to adjust.

JP 2008-156939 A

  As described above, the counter top 11 is pressed against the jig A via the exhaust circuit D, and the flange portion 21 is pressed against the silicon packing 7 by the clamp B. However, at this time, the silicon packing 7 that is flexible and excellent in releasability is easily displaced, and a gap is formed between the end portion of the counter top 11 and the resin constituting the bonding resin as shown in a circle is shown. There is a problem in that a resin leakage site E occurs.

  That is, when the first bonding resin 8 is poured in a state where the gap is generated, the bonding resin 8 that has entered the gap is cured as it is. There is a problem that it appears as a part and the linearity of the joint part between the sink 2 and the counter 1 cannot be maintained, and the appearance is deteriorated.

  The present invention has been made in view of the above-described background art. The purpose of the present invention is to allow the sink to be attached to the opening formed in the counter with good workability, and the joint between the sink and the opening is linear. It is to provide a manufacturing method of a kitchen counter having a good design that has been joint-finished while maintaining the above.

  In order to solve the above problem, in the invention according to claim 1 of the present application, a kitchen counter manufacturing method comprising a sink and a counter, the sink has a flange portion, A folded hanging piece extending substantially perpendicular to the floor surface is provided around the sink, and the sink is inserted into an opening formed in the counter, and a gap is formed between the inner peripheral edge forming the opening and the folded hanging piece. The gap is formed in a substantially rectangular shape in plan view, and sealed with a silicon packing having a rib provided on the back surface of the outer peripheral portion, and the bonding resin is injected and cured.

  In addition, the kitchen counter in the present invention omits the illustration and explanation of the flush faucet and stove normally provided in the counter, the storage section disposed below the counter, the piping installed in the storage section, and the like. .

  The invention according to claim 2 is a manufacturing method of a kitchen counter comprising a sink and a counter, wherein the sink has a flange portion, and the periphery of the flange portion is substantially perpendicular to the floor surface. An extending folded piece extends around the sink, and the sink is inserted into an opening formed in the counter, and the inner peripheral edge forming the opening and the folded suspended piece are held via a gap, and the gap is It is characterized in that it is formed in a substantially rectangular shape in plan view and is sealed with a silicon packing provided with a notch on the outside of the contact surface with the counter, and the bonding resin is injected and cured.

  In the manufacturing method of the kitchen counter according to the invention of claim 1 of the present application, the inner peripheral edge forming the opening provided in the counter and the folded hanging piece attached to the sink are held through the gap, and the gap When injecting and curing the bonding resin, the gap is formed in a substantially rectangular shape in plan view and sealed with a silicon packing in which a rib is provided on the back surface of the outer peripheral portion, so that the rib reinforces the silicon packing. The surface pressure on the contact surface of the counter can be improved and the seal can be tightly sealed.

  And the silicon packing with the above structure makes contact with the counter exactly and seals it, so that even if the joining resin is injected, there is no resin leakage. can do.

  In the kitchen counter manufacturing method according to the invention of claim 2 of the present application, the inner peripheral edge forming the opening provided in the counter and the folded hanging piece attached to the sink are held via a gap, and the gap When injecting and curing the bonding resin, the gap is sealed with a silicon packing formed in a substantially rectangular shape in plan view and provided with a notch over the entire outer periphery of the contact surface with the counter. Therefore, the surface pressure per unit area between the notch remaining part of the recon packing and the counter is large, and by tightening firmly, there is no resin leakage even when the joining resin is injected, so there is no protrusion after curing. It is possible to form joints that maintain a straight line. Thus, it is possible to provide a kitchen counter excellent in design, in which the sink and the counter are firmly joined.

The disassembled perspective view which shows typically the structure of the manufacturing method of the kitchen counter of this invention. The partial expanded sectional view which shows typically the manufacturing method concerning 1st Embodiment of this invention. The partial expanded sectional view which shows typically the manufacturing method concerning 2nd Embodiment of this invention. The partial expanded sectional view which shows typically the manufacturing method concerning 3rd Embodiment of this invention. Explanatory drawing which shows schematic structure of the manufacturing method of the conventional kitchen counter.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded perspective view schematically showing the configuration of the kitchen counter manufacturing method of the present invention. As shown in FIG. 1, the kitchen counter according to the present embodiment includes a counter 1 made of artificial marble molded with a heat-resistant resin and a stainless steel sink 2 formed by drawing.

  The counter 1 constitutes a counter top 11, and the front side edge thereof hangs down to form an apron portion 12, and the rear side edge rises to form a back guard 13. An opening 14 formed from the peripheral edge 15 is provided.

  On the back surface in the vicinity of the opening 14, a wooden or synthetic resin pier 3 such as a plywood, a particle board, or a square is provided. The pier 3 is formed in a rectangular cross section, and is fixed over the entire circumference at a certain interval from the inner peripheral edge 15 of the opening 14.

  On the other hand, a flange portion 21 extending outward is formed at the upper end edge of the outer periphery of the sink 2 that opens upward, and extends from the outer peripheral edge of the flange portion 21 substantially perpendicularly to the floor surface. A folded drooping piece 22 is provided around. Further, a drain outlet 24 is provided on the center rear side of the bottom surface 23 of the sink 2.

  FIG. 2 is a partially enlarged sectional view schematically showing the manufacturing method according to the first embodiment of the present invention. As shown in FIG. 2, the counter 1 and the sink 2 are placed upside down on a silicon packing 4 formed in a substantially rectangular shape in plan view and having a rib 41 around the back surface of the outer periphery. ing. In the present embodiment, the above-described jig A, clamp B, pressing piece C, etc. are not shown for ease of explanation.

  As shown in FIG. 2, the silicon packing 4 according to the first embodiment is reinforced by the ribs 41 so that the entire outer peripheral portion is reinforced, so that the rigidity is improved and the surface pressure on the contact surface of the countertop 11 is improved. ing. And it is pressed by the jig | tool which has a receiving part which receives the rib 41, and the silicon packing 4 contact | abuts to the countertop 11 exactly, and seals firmly, without a clearance gap producing. Therefore, there is no resin leakage even when the bonding resin 8 is injected, and when the silicon packing 4 is released after curing, a joint that does not protrude and maintains a straight line can be formed.

  In FIG. 2, a backup bonding resin 81 is further injected to reinforce the bonding resin 8. Here, the backup bonding resin 81 is injected and reinforced on the cured layer of the bonding resin 8 before the bonding resin 8 is completely cured. As shown in the figure, it is preferable to inject the backup bonding resin 81 to such an amount that it contacts the entire side surface of the pier 3 on the sink side. After the bonding resin 8 and the backup bonding resin 81 are completely cured, the silicon packing 4 is released.

  By reinforcing the backup bonding resin 81 in this manner, the bonding strength between the counter 1 and the sink 2 can be further increased. Further, the silicon packing 4 is easily peeled off from the contact surface with the cured layer of the bonding resin 8, and this contact surface appears as a hard joint, and a kitchen counter with good design can be obtained.

  The width of the filling space of the bonding resin 8, that is, between the inner peripheral edge 15 and the folded hanging piece 22 is preferably about 0.5 mm to 5.0 mm, more preferably from the viewpoint of design and molding errors. , About 2.0 mm. By doing so, the bonding strength between the counter 1 and the sink 2 is not impaired, and the design is excellent.

  As the bonding resin 8, for example, a two-component room temperature curable resin composition-based bonding resin composed of a main agent and a curing agent is suitably used. As the main agent, an epoxy resin type or a urethane resin type is used, and a curing agent is also used. As such, a polyamide-based or isocyanate-based curing agent is used depending on the main agent. Such a two-component room-temperature curable joining resin becomes hard when the curing reaction proceeds and is completely cured, and after the silicon packing 4 is removed, the linearity is maintained and a clean joint having excellent design is formed. .

  As the back-up bonding resin 81, for example, a two-component room-temperature curing resin composition-based bonding resin composed of a main agent and a curing agent is preferably used, as in the case of the bonding resin 8. As the urethane resin system and the curing agent, a polyamide system or an isocyanate system curing agent is used depending on the main agent.

  As the epoxy resin, a modified epoxy resin such as a bisphenol A type epoxy resin or a urethane-modified epoxy resin may be used. Further, as the urethane resin, urethane resin such as non-yellowing or hard yellowing type may be used.

  For example, when the environmental temperature is low, such as in winter, or when it is desired to accelerate the curing reaction of the bonding resin 8 and the backup bonding resin 81, the heating rate can be adjusted appropriately by energizing the surface heater 9 described above. it can.

  FIG. 3 is a partially enlarged cross-sectional view schematically showing the manufacturing method according to the second embodiment of the present invention. As shown in FIG. 3, the counter 1 and the sink 2 are formed in a substantially rectangular shape in plan view, and a cutout portion 51 having a substantially L-shaped cross section is provided on the outer side of the contact surface with the counter top 11. It is placed upside down on the silicon packing 5. Also in the present embodiment, the illustration of the jig A, the clamp B, the pressing piece C and the like described above is omitted for ease of explanation.

  Thus, since the contact surface of the countertop 11 at the outer peripheral portion of the silicon packing 5 is cut out over the entire circumference, the cutout portion 51 is moved upward when the cutout portion 51 is pressed by a jig. The surface pressure per unit area between the notch remaining portion 52 of the silicon packing 5 and the counter top 11 is increased.

  Then, as the surface pressure is increased, the notch remaining portion 52 of the silicon packing 5 comes into close contact with the counter top 11 and seals the gap. Therefore, even if the bonding resin 8 is injected, the resin does not leak out, and a joint that does not protrude and maintains a straight line can be formed.

  FIG. 4 is a partial enlarged cross-sectional view schematically showing the manufacturing method according to the third embodiment of the present invention. As shown in FIG. 4, in the third embodiment, the silicon packing 6 is formed in a substantially rectangular shape in a plan view, and a part of the silicon packing 6 is formed on the back surface side of the contact surface of the countertop 11 over the entire circumference. Is cut off and a relief 61 is provided.

  As described above, by providing the relief portion 61, the contact surface of the silicon packing 6 with the counter top 11 has increased flexibility, and even if the contact surface of the counter top 11 is uneven or uneven, these are Can be absorbed and snugly contacted. Then, the gap is sealed, abuts against the counter top 11, and even if the bonding resin 8 is injected, the resin can be prevented from leaking, and a joint with clear linearity can be formed.

  In the above embodiment, the kitchen counter including the counter 1 made of artificial marble and the sink 2 made of stainless steel has been described. However, the counter 1 is not limited thereto, and the counter 1 may be made of other plastic materials or natural marble. May be used. Moreover, although the example using the joining resin which consists of a 2 liquid room temperature curing resin composition as a joining resin and backup joining resin was described, it is not restricted to this, You may use the room temperature curing 1 liquid bonding resin. . As described above, the design method of the kitchen counter according to the present invention can be changed in various ways, and any case belongs to the technical scope of the present invention as long as it does not depart from the scope of the claims.

A Jig B Clamp C Pressing piece D Exhaust circuit E Resin leakage part 1 Counter 11 Counter top 12 Apron part 13 Back guard 14 Opening part 15 Inner peripheral edge 2 Sink 21 Flange part 22 Folding drooping piece 23 Bottom face 24 Drainage port 3 Pier 4 Silicon packing 41 according to one embodiment Rib 5 Silicon packing 51 according to the second embodiment Notch portion 52 Notch remaining portion 6 Silicon packing 61 according to the third embodiment Relieving portion 7 Silicon packing 8 in the prior art 8 Bonding resin 81 Backup bonding Resin 9 side heater

Claims (2)

  A method of manufacturing a kitchen counter comprising a sink and a counter, wherein the sink has a flange portion, and a folded hanging piece extending substantially perpendicular to the floor surface is provided around the periphery of the flange portion. The sink is inserted into an opening formed in the counter, holds the inner peripheral edge forming the opening and the folded hanging piece via a gap, and the gap is formed in a substantially rectangular shape in plan view, and The manufacturing method of the kitchen counter which inject | pours and hardens | cures sealing resin by sealing with the silicon packing by which the rib was provided in the back surface of the outer peripheral part.   A method of manufacturing a kitchen counter comprising a sink and a counter, wherein the sink has a flange portion, and a folded hanging piece extending substantially perpendicular to the floor surface is provided around the periphery of the flange portion. The sink is inserted into an opening formed in the counter, holds the inner peripheral edge forming the opening and the folded hanging piece via a gap, and the gap is formed in a substantially rectangular shape in plan view, and A manufacturing method of a kitchen counter in which a sealing resin is injected and cured by sealing with a silicon packing provided with a notch on the outside of the contact surface with the counter.

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