JP4193083B2 - Woodgrain bathtub - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a woodgrain bathtub using an FRP panel having a specific woodgrain surface layer that is mistaken for a real bath.
[0002]
[Prior art]
A conventional natural wooden bathtub has a high-class feeling but has problems such as decay and a high price. On the other hand, a bathtub having a woodgrain pattern using a woodgrain printed nonwoven fabric by a normal FRP hand lay-up molding method is known as disclosed in Japanese Patent Laid-Open Nos. 54-90271 and 55-77526. Yes. These bathtubs are superior to natural wooden bathtubs in terms of price and decay resistance. However, these wood-tone FRP bathtubs are not shaped like a real wood bath in which wood plates are assembled in a box shape, but they are made by adding a wood-grained surface to an ordinary integrally-formed FRP bathtub. The curved shape, such as the R shape, was a very FRP-like bathtub.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to provide a woodgrain bathtub that can be mistaken for a real bath with FRP material.
[0004]
[Means for Solving the Problems]
As a result of intensive research on a wood-grain bathtub that is mistaken for a real bath with the FRP material, the present inventors have assembled a FRP panel having a specific surface layer into a bathtub shape, thereby obtaining a square shape. The present invention was completed by finding that the appearance like a bathing bath is realized, and that a natural feeling is produced by assembling natural wood on the upper edge.
[0005]
That is, the present invention has a decorative layer having a wood grain as wood surface layer, the folded portion comprising a L channel to the bottom surface of the FRP panels perforated on the back end, and side surfaces of the same FRP panel made, the It is a bathtub which has a surface layer as an inner surface of the bathtub and a folded portion made of an L channel as a joint , and the panel has a matte surface gel coat resin layer on the decorative layer and on the upper edge of the bathtub The present invention relates to a woodgrain bathtub characterized by assembling a wooden frame.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail.
The matte surface gel coat resin layer of the present invention includes unsaturated polyester resin (polymerizable unsaturated monomer solution of unsaturated polyester), vinyl ester resin (polymerizable unsaturated monomer solution of the resin), and these It is the hardened | cured material layer of matrix resins, such as blend resin of this. These form the outermost surface layer of the FRP panel by spraying or a flow coater. Preferably, a gel coat using a polyester resin or a vinyl ester resin, or a mixture of these resins is sprayed to a predetermined thickness to be cured. The thickness of this gel coat resin layer is preferably 0.1 to 1 mm, more preferably 0.2 mm to 0.5 mm. Further, after the gel coat resin layer is formed, the surface thereof is matted.
[0007]
The matte level is such that at least the surface glossiness (gross value) of the FRP material is preferably 50 or less, more preferably 10 to 0. As a method of matting, the surface of the mold is previously matted (texture processing) and transferred to the FRP material, or the one molded with a normal gloss mold is polished with an abrasive such as sandpaper. To do.
[0008]
For the decorative layer having the grain of the present invention, a grain-printed decorative paper, a grain-printed non-woven fabric, and a thin sheet of natural wood are used. In addition, the decorative layer can be formed by printing the grain on the gel coat layer or transferring the grain pattern with transfer paper. Moreover, when using the paper (printing paper) on which the wood grain was printed, the surface printed on the titanium paper or the reinforced paper is preferably used. Moreover, when using a nonwoven fabric, it is good to use the polyester-type nonwoven fabric etc. by which the grain was printed on the surface.
[0009]
The FRP panel of the present invention is a fiber reinforced plastic plate (FRP plate) that forms a bottom surface, a side surface, and an apron of a bathtub, and has a matte gel coat resin layer and a decorative layer having grain. It forms a woodgrain surface layer consisting of a matte surface gel coat layer and a decorative layer with wood grain. The fiber reinforced plastic layer part is hardened by impregnating the FRP fiber reinforcement with the FRP matrix resin. It has been made.
[0010]
The fiber reinforcement for FRP used in the present invention is preferably a glass fiber, but organic fibers such as carbon fiber, aramid fiber, other vinylon fiber, and polyester fiber can be used alone or in combination. As the form of the fiber reinforcement, mats, chops, cloths and the like can be used alone or in combination.
[0011]
The matrix resin for FRP to be impregnated is preferably an unsaturated polyester resin (polymerizable unsaturated monomer solution of unsaturated polyester), a vinyl ester resin (polymerizable unsaturated monomer solution of the resin), or These blended resins are typical, but epoxy resins, acrylic resins, other thermosetting resins and blended resins thereof can be used, and a compound in which a curing catalyst, an inorganic or organic filler is mixed is used. It can also be used.
[0012]
The forming method of the FRP panel is not particularly limited, and examples thereof include a hand pile (HLU: hand lay-up) forming method, a spray-up forming method, a flat plate continuous forming method, an RTM forming method, and a VARI forming method. It is done.
[0013]
The thickness of these bottom, side and apron FRP panels is not particularly limited, but is preferably 1 to 10 mm, more preferably 3 to 6 mm.
[0014]
The bottom surface of the FRP panel of the present invention is a panel having the above-mentioned woodgrain design, particularly an FRP panel used for a bottom plate, and a drain hole formed in the panel, A shape that uses a special mold to fit a fitting. Further, the bottom panel may be provided with a right-angle folded portion of 10 to 100 mm at the end for fastening with another panel. Although the magnitude | size changes with bathtub sizes, Preferably it is 1000 mm-1800 mm long x 500 mm-900 mm wide.
[0015]
The side surface of the FRP panel of the present invention is a panel used on the side surface of the bathtub having the above-mentioned woodgrain design, and has a flat shape or a shape having a right-angled folded portion preferably 10 to 100 mm at the end for fastening. Say. Although the size varies depending on the bathtub size, the long side panel preferably has a length of 1000 mm to 1800 mm × width of 400 mm to 600 mm, and the short side panel preferably has a length of 500 mm to 900 mm × width of 400 to 600 mm.
[0016]
The wood to be assembled on the upper edge of the bathtub is natural wood, and the material can be, for example, firewood, firewood, firewood, hiba, etc. To do. The size varies depending on the size of the bathtub, but it is preferably a long side material of 1000 to 1800 mm × height of 50 to 100 mm × width of 30 to 100 mm, a short side of material of length 500 to 1000 mm × height 50 to 100 mm × width 30 to 100 mm.
[0017]
The FRP apron of the present invention refers to the one using the FRP panel having the above-mentioned woodgrain design as an apron. The size varies depending on the bathtub size, but is preferably 1000 mm to 1800 mm × 200 mm to 700 mm in the long side panel, and 500 mm to 1000 mm × 200 to 700 mm in the short side panel.
[0018]
Next, a method for assembling the woodgrain bathtub of the present invention will be described. First, as shown in FIG. 1 and FIG. 4, the side panel having the folded portion is fastened to the bottom panel having the folded portion with the folded portion as a joint portion with an adhesive or a bolt / nut, or the bottom surface having no folded portion. An L channel is fastened to the panel and the side panel with an adhesive if necessary, and the panel and the side panel are fastened to each other using an adhesive and a bolt through the L channel. At the time of fastening, it is desirable to use a packing, caulking material or the like in combination at the panel joining portion to increase the water-stopping property. The L channel has an L-shaped cross section and is made of a material such as steel, aluminum or FRP. Preferably, one having a side width of 10 to 50 mm × length of 200 to 1800 mm is cut into a necessary length and used.
[0019]
Further, the bonding portion is made a bonding portion by adhering the L channel to the FRP panel or by providing a folded portion on the FRP panel. At this time, the width of the L channel or the folding margin is preferably 10 mm to 100 mm, and more preferably 30 mm to 50 mm.
[0020]
When the fastening of the bottom and side panel portions is completed and the box-like object is completed (FIG. 5), then a natural wooden square is assembled into the mouth shape of FIG. 2 to complete the wooden frame. (Refer to FIG. 6) The fastening method between the woods may be the fitting between woods or wood nails, bamboo nails, wood screws, nails, adhesion, or a combination thereof. A groove as shown in FIG. 3 is provided on the back surface of the wooden frame of the wooden frame at a position where the upper part of the FRP side plate can be fitted. The width of the groove is equal to or greater than the thickness of the FRP panel side plate, preferably 3 to 7 mm, and the depth is not particularly limited, but is preferably about 5 to 10 mm. A groove is also provided at the position where the apron is fitted.
[0021]
Insert the above wooden frame into the upper part of the FRP panel side plate. Use an adhesive to fasten the part to be inserted. Furthermore, it is desirable to take measures against water stoppage by using packing or caulking agent.
[0022]
The apron is attached to the outside of the side plate of the long side and the short side, with the wood grain surface layer facing outward, and the L channel is adhered to the back end of the FRP panel that becomes the apron. By providing a groove, you can finish the corners of the apron cleanly. Between the apron and the side surface forming the inner surface, a polymer foam may be used and formed to insulate.
[0023]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited to this.
[0024]
(Example)
A polyester resin gel coat is applied to a flat mold to a thickness of 0.5 mm, and once hardened, it is impregnated with a polyester resin-coated decorative paper and spread, and four pieces of unit weight 450 g / m ² glass fiber mat. Lamination was performed to form an FRP panel having a thickness of about 5 mm.
[0025]
These laminated panels were cut into the following dimensions to prepare a number of sheets.
・ 1080mm × 510mm 2 sheets (long side for side panel)
・ 610mm × 460mm 2 sheets (Short side for side panel)
・ 1090mm × 510mm 1 sheet (long side for apron)
・ One piece of 695mm × 510mm (short side for apron)
[0026]
Furthermore, a gel coat is applied to a mold having the shape of a drain outlet to a thickness of 0.5 mm, cured and then coated with a decorative paper printed with a grain, impregnated with resin, and further a glass fiber mat with a unit weight of 450 g / m 2 is added to 4 ply. A laminated bottom panel was prepared.
[0027]
Further, an F-shaped L-shaped material (L channel) was bonded to the side panel (short side) and the bottom panel using an epoxy adhesive as shown in FIG. These panels were joined together using an epoxy adhesive and bolts and nuts, and assembled as shown in FIG.
Next, the wood was assembled as shown in FIG. The following wood dimensions and numbers were prepared.
[0028]
-Length 1100 mm x width 50 mm x height 100 mm 2 pieces-length 600 mm x width 50 mm x height 100 mm 2 pieces Bonding and wood screws were used in combination for joining two pieces of wood together. Wood screws were screwed into holes that were drilled in advance, and the holes were closed with wooden sticks. Also, a groove is dug in the shape shown in FIG. The groove was dug at a position 5 mm from the inside and outside of the wood, the width was 6 mm, and the depth was 10 mm.
[0029]
The wood was assembled with an FRP panel and an adhesive was applied to form a shape as shown in FIG. Next, in order to prevent water leakage, the seams between the individual panels were sealed with a caulking agent.
[0030]
Next, the aprons were bonded together as shown in FIG. 9 and fitted into the wood grooves of the wooden frame.
Further, a urethane foaming agent was sprayed between the side plate and the apron and on the side surface to obtain a heat insulating material. A woodgrain bathtub with the finished shape shown in FIG. 10 was obtained. This bathtub looked like a square-shaped real natural bath.
[0031]
【The invention's effect】
In the present invention, an FRP panel having a specific surface layer is assembled into a bathtub shape, thereby realizing an appearance like a square bath, and a wood-grained FRP wood-tone without problems such as decay A bathtub can be provided.
[0032]
[Brief description of the drawings]
FIG. 1 shows an example in which the bottom and side surfaces of an FRP panel are assembled.
FIG. 2 shows an example of assembling a wooden frame.
FIG. 3 shows the shape of a groove formed on the back surface of the wooden frame.
FIG. 4 is a diagram in which an L channel is attached to the bottom and side FRP panels in the embodiment.
FIG. 5 shows the FRP panel bottom and side surfaces assembled in an embodiment of the present invention.
FIG. 6 shows an example of how to assemble a wooden frame in the embodiment of the present invention.
FIG. 7 shows the shape of a groove formed on the back surface of the wooden frame in the embodiment of the present invention.
FIG. 8 shows how to mount (attach) a wooden frame in the embodiment of the present invention.
FIG. 9 is a top view of end fastening between aprons of a short side surface and a long side surface in the embodiment of the present invention.
FIG. 10 is an external view of a woodgrain bathtub in a state completed in an embodiment of the present invention.

Claims (2)

Having a decorative layer having a wood grain as wood surface layer, and a bottom surface of the FRP panels to have a folded portion consisting of L channels on the back end, and side surfaces of the same FRP panel made, tub inside surface of the surface layer As a bathtub that has been assembled with a folded portion comprising an L channel as a joint , the panel has a matte surface gel coat resin layer on the decorative layer, and a wooden frame is assembled on the upper edge of the bathtub A woodgrain bathtub characterized by.   The woodgrain bathtub according to claim 1, further comprising an FRP apron having a woodgrain surface layer.

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