JPH1088636A - Waterproof pan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent broken chips or cracks when various screws are used and improve moldability at injection molding, by using a waterproof pan made of polynorbornane resin, in a unit bath or a system toilet. SOLUTION: A waterproof pan 10 molded by injection molding of polynorbornane resin is constituted of a bathtub pan 1 loading a bathtub 30 and a washing floor pan 2 and it is installed on a, concrete floor face 50 through level-adjustable bolts 60. A joint. end part 7 provided with grooves 7a with about 6mm width at the front face and ribs 7b at the rear face, is formed on the washing floor pan 2. Heaved placing parts 8 for the bathtub 30 are formed on the bathtub pan 1. A heaved part 3 to install an apron 20 is formed at the boundary part between the bathtub pan 1 and the washing floor pan 2. In this way, the waterproof pan 10 having a complicated shape can be formed by using polynorbornane resin and the apron 20 can be fixed by tapping screws or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof pan for unit baths and system toilets, and more particularly to a waterproof pan made of polynorbornene resin obtained by reaction injection molding of a norbornene monomer (hereinafter, also simply referred to as RIM). .

[0002]

2. Description of the Related Art Conventionally, as a waterproof pan used for a bottom surface of a unit bath or a system toilet, a sheet-shaped unsaturated polyester resin molding material (hereinafter, also referred to as SMC) is formed by a compression molding method. There is known one molded using a thermosetting plastic (hereinafter, also referred to as FRP) containing a fiber reinforcing material.

[0003]

However, the waterproof pan formed by SMC is extremely brittle, so that if a tapping screw or a text screw is used to attach other parts to the waterproof pan, chipping or cracking may occur. there were. Also, with this type of waterproof pan, it is not uncommon to remove parts that have been attached for replacement or repair, and in such a case, if the screw hole is broken or broken, the parts cannot be reinstalled. Was.

On the other hand, FRP has a problem in formability,
It is difficult to form a rib for increasing the rigidity of the waterproof pan, and it is also extremely difficult to form the waterproof pan into a complicated shape. For this reason, when attaching an apron between the peripheral part of a bathtub and a waterproof pan, as shown in FIG. 5, the angle steel 40 is first screwed to the waterproof pan 10, and the apron 20 is screwed to this angle steel 40. And the number of parts increases, the assembling work takes time, and the manufacturing cost becomes high.

The present invention has been made in view of the above-mentioned problems of the prior art, and other parts can be attached at any position using various screws such as tapping screws and text screws. It is a first object of the present invention to provide a waterproof pan which can be attached well even when it is repeatedly removed, and in addition to the above, the parts necessary for mounting a bathtub are integrated by utilizing excellent moldability. A second object is to provide a waterproof pan which can reduce the number of parts by forming the waterproof pan.

[0006]

In order to achieve the above object, a waterproof pan according to the present invention is characterized by comprising a polynorbornene resin obtained by reaction injection molding of a norbornene monomer.

[0007] The waterproof pan of the present invention is a waterproof pan in which an apron is mounted between a bathtub pan on which a bathtub is placed and a peripheral portion of the bathtub, wherein a mounting portion for fixing the apron is integrated. It is characterized by being formed in.
Further, the waterproof pan of the present invention is characterized in that the apron is formed integrally.

The waterproof pan of the present invention is made of a polynorbornene resin obtained by reaction injection molding of a norbornene monomer, so that it is extremely difficult to break and has excellent impact resistance.
Moreover, it is rich in moldability. Therefore, other parts can be attached at any position using various screws such as tapping screws and text screws. Also, no matter how many times attachment and detachment of other parts are repeated, the screw holes are unlikely to be chipped or cracked, so that various parts can be mounted favorably. Furthermore, since it is molded by an injection molding method, it is excellent in moldability, and it is possible to easily form ribs and the like for enhancing rigidity of the waterproof pan in an appropriate place, and to form the waterproof pan itself into a complicated shape. Can be.

Utilizing such high durability, high impact resistance, and high formability, a waterproof pan in which an attachment portion for fixing an apron is integrally formed, and a waterproof pan in which an apron itself is integrally formed. You can get bread.

[0010] In the waterproof pan of the present invention in which the mounting portion for fixing the apron is integrally formed, the conventionally used mounting parts such as angle materials can be omitted.
In addition to the improvement in assemblability, the manufacturing cost is reduced. Also,
In the waterproof pan of the present invention in which the apron itself is integrally formed, it is not necessary to attach the apron, so that the assemblability is further improved and the manufacturing cost is reduced.

In the present invention, the norbornene-based monomer preferably used in the reaction injection molding includes, for example, dicyclopentadiene, dihydrodicyclopentadiene,
It is a cycloolefin having a norbornene ring such as tetracyclododecene and tricyclopentadiene.

A metathesis catalyst that can be used in reaction injection molding using a norbornene-based monomer is
For example, there is no particular limitation as long as it is a metathesis catalyst known as a catalyst for bulk polymerization of norbornene-based monomers such as organic ammonium molybdates such as tungsten hexachloride, tridodecyl ammonium molybdate, and tri (tridecyl) ammonium molybdate. Organic ammonium molybdate is preferred.

Examples of the activator (cocatalyst) include alkylaluminum halides such as ethylaluminum dichloride and diethylaluminum chloride, alkoxyalkylaluminum halides, and organotin compounds.

As preparations for the reaction injection molding, a reaction injection molding material mainly composed of a norbornene-based monomer, a metathesis catalyst and an activator is used as a solution A comprising a norbornene-based monomer and a metathesis catalyst; Divided into two stable liquids, liquid B and activator,
Keep each in a separate tank. At the time of reaction injection molding, these two liquids are mixed in a mixing chamber, and then the mixed liquid is poured into a cavity of a mold and subjected to bulk polymerization to obtain a molded article.

At the time of reaction injection molding, the mold clamping pressure of the mold is usually in the range of 0 to 100 kg / cm ² . The polymerization time may be appropriately selected, but is usually 30 seconds to 20 minutes after the completion of the injection of the reaction solution.

The waterproof pan of the present invention can be used for various systems such as a unit bath, a system toilet, and a system bath provided with a sink and a toilet.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view showing an embodiment of the waterproof pan of the present invention, FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
FIG. 3 is an enlarged sectional view of a part III in FIG.

The waterproof pan 10 of the present embodiment is a waterproof pan used for a unit bath, which is formed in a rectangular shape in a plan view, and a bathtub pan 1 on which a bathtub 30 is placed, and a washing place for a bather. Bread 2.
As shown by the phantom two-dot chain line in FIG.
, 0, 60,. Also, the waterproof pan 10
A wall panel 70 of a unit bath is erected on the outer peripheral edge portion 5 of the main body.

As shown in FIG. 1, ribs 6 for increasing the rigidity of the waterproof pan 10 are provided on the back surface of the washing pan 2.
.. Are 30 with respect to the outer peripheral edge 5 of the waterproof pan 10.
It is formed at an angle of ゜ to 60 °, preferably 40 ° to 50 °, more preferably 45 °. In the waterproof pan 10 according to the present embodiment, the reaction liquid is injected at right angles to the outer peripheral edge portion 5 where the gate is provided. It can be performed more smoothly. Further, the washing pan 2 has a groove 7a having a width of about 6 mm on the front surface and a rib 7b on the rear surface.
Are formed.

On the other hand, a bathtub 30 indicated by a two-dot chain line in FIG. 2 is mounted on the bathtub pan 1, and a mounting portion 8 for this is formed so as to protrude above the general surface. A raised portion 3 for attaching an apron 20 is formed at the boundary between the bathtub pan 1 and the washing pan 2. The apron 20 is a decorative plate for concealing a gap between the peripheral portion 31 of the bathtub 30 and the waterproof pan 10, and is attached so as to curve down from the peripheral portion 31 of the bathtub 30 toward the raised portion 3. . In order to attach this apron 20, in the waterproof pan 10 of this embodiment,
The mounting flanges 4 shown in FIG.
Are formed integrally with the waterproof pan 10. That is, when performing reaction injection molding, the raised portion 3 and the mounting flange 4 are integrally formed. Then, as shown in FIG. 3, the apron 20 is attached between the mounting flange 4 and the peripheral portion 31 of the bathtub 30, and a fastening member 80 such as a tapping screw or a tex screw passes through the apron 20 and the mounting flange 4. To fix the apron 20. In FIG. 1, "9" is a drain port.

The waterproof pan 10 of the present embodiment is
Since it is made of a polynorbornene-based resin, it is extremely hard to break, has excellent impact properties, and has excellent moldability. Therefore, the apron 20 can be attached to the attachment flange 4 at any position using various screws 80 such as tapping screws and text screws. Also, even if the apron 20 is repeatedly attached and detached many times, the screw hole is unlikely to be chipped or broken, so that there is no problem in repairing or replacing the apron 20.

Further, since the molding is performed by the injection molding method, the molding is excellent, and the ribs 6, 7b and the like for enhancing the rigidity of the waterproof pan 10 can be easily formed at appropriate positions. Can be formed in a complicated shape. Therefore, as in the present embodiment, the raised portion 3
In addition, the mounting flange 4 can be easily molded integrally, and as a result, the conventionally used mounting parts such as the angle steel material 40 can be omitted, and in addition to improving the assemblability, the manufacturing cost can be reduced.

The embodiments described above are described for the purpose of facilitating the understanding of the present invention, and are not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

For example, in the above-described embodiment, the raised portion 3
The apron 20 was screwed to the mounting flange 4 and the raised portion 3 and the apron 2 were integrally formed.
0 may be integrally formed and the screw 80 may be omitted. FIG. 4 is an enlarged cross-sectional view showing another embodiment of the waterproof pan of the present invention, and is a view corresponding to section III in FIG.
In the waterproof pan 10 of the present embodiment, the apron 20 is integrally formed on the raised portion 3 of the waterproof pan as it is, and in this case, the installation of the bathtub 30 is completed only by aligning the bathtub 30 with the end of the apron 20. I do. Therefore, bathtub 30
At the time of assembling, the fastening member 80 such as a tapping screw or a tex screw is not required, and the assembling work of the apron 20 is also unnecessary, so that the assembling property is further improved and the manufacturing cost is reduced. In this embodiment, a portion corresponding to the mounting flange 4 may be formed in the protruding portion 3, but this portion may be omitted and the apron 20 may be integrally formed on the protruding portion 3 as it is.

[0025]

As described above, according to the waterproof pan of the present invention, since it is made of a polynorbornene-based resin obtained by reaction injection molding of a norbornene-based monomer, it is extremely difficult to break, and has excellent impact resistance. Rich in moldability. Therefore, other parts can be attached at any position using various screws such as tapping screws and text screws. Also, no matter how many times attachment and detachment of other parts are repeated, chip holes and cracks are unlikely to occur,
Various components can be mounted favorably. Furthermore, since it is molded by an injection molding method, it is excellent in moldability, and it is possible to easily form ribs and the like for enhancing rigidity of the waterproof pan in an appropriate place, and to form the waterproof pan itself into a complicated shape. Can be.

Further, according to the waterproof pan of the present invention, in which the mounting portion for fixing the apron is formed integrally, the conventionally used mounting parts such as angle materials can be omitted. In addition, the manufacturing cost is reduced.

Further, according to the waterproof pan of the present invention in which the apron itself is integrally formed, it is not necessary to assemble the apron, so that the assemblability is further improved and the manufacturing cost is reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a waterproof pan of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is an enlarged sectional view of a part III in FIG. 2;

FIG. 4 is a view showing another embodiment of the waterproof pan of the present invention, and is an enlarged sectional view corresponding to a part III in FIG. 2;

FIG. 5 is a sectional view showing a conventional waterproof pan.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Waterproof pan 1 ... Bath tub 2 ... Washing pan 3 ... Protrusion part 4 ... Mounting flange (mounting part) 20 ... Apron 30 ... Bathtub 31 ... Peripheral part 50 ... Concrete floor surface 60 ... Level adjustment bolt 70 ... Wall panel 80 … Tapping screw

Claims (3)

[Claims] 1. A waterproof pan comprising a polynorbornene resin obtained by reaction injection molding of a norbornene monomer. 2. A waterproof pan to which an apron is attached between a bathtub pan on which a bathtub is placed and a peripheral portion of the bathtub, wherein an attachment portion for fixing the apron is formed integrally. The waterproof pan according to claim 1, characterized in that: 3. The waterproof pan according to claim 1, wherein the apron is formed integrally.