JP2713463B2 - Manufacturing method of floor pan with floor heating function - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method of manufacturing a floor panel with a floor heating function having a heating floor panel for heating a washing place.

(Prior art) prior floor pan with underfloor heating function, as shown in FIG. 9 through FIG. 12, the first mold portion of the tub mounting part (c ₁₎ (a ₁₎ and washing area portion (c ₂ A) forming a FRP layer (2) on the surface of a molding die (A) having a second molding part (a ₂ ) (FIG. 9);
Washing place unit (c ₂₎ a second molding part for the FRP layer (2) portion of (a _2), the step (FIG. 10 for fixing the Okuyukan (3a) and internally provided with a heating floor panel (3) ) And a step of releasing the FRP molded product (C) from the molding die (A) (FIG. 11).

(Problems to be Solved by the Invention) In the floor pan with floor heating function manufactured by the above-mentioned prior art, the hot water inlet (3b) and the hot water outlet (3c) at both ends of the hot water pipe (3a) are installed floor. It is arranged facing (100) (No. 12
Figure).

Therefore, the feed pipe (d ₁ ) and return pipe (d ₂ ) of the water heater (D)
The connection metal fitting (200) is also arranged facing the installation floor (100), and if there is water leakage from the connection metal fitting (200), there is a possibility that the connection metal fitting (200) will permeate the installation floor (100) and drip downstairs.

An object of the present invention is to manufacture a floor pan with a floor heating function in which a hot water inlet and a hot water outlet of a hot water supply pipe are located in a bathtub mounting portion.

(Technical Means) The technical measures taken to achieve the above object are as follows: the first forming part for the bathtub mounting part has a stepped surface which forms a boundary with the second forming part for the washing area; A first step of abutting a placing die having individual through holes, a second step of applying an FRP layer to the entire surface of the placing die excluding the through holes and the entire surface of the first and second molded portions, after the FRP layer is solidified A heating floor panel in which a hot water pipe is provided is fixed to the FRP layer portion of the second molding portion, and a hot water inlet and a hot water outlet at both ends of the hot water pipe are placed in the through holes in the mold, respectively.
And a fourth step of removing the placing mold from the FRP molded product after removing the mold from the FRP molded product.

(Operation) According to the above technical means, the following operation is obtained.

In the first forming part for the bathtub mounting part, the second forming part for the washing place
The through hole of the placing die in contact with the step surface forming the boundary with the forming part creates a space communicating between the FRP layer and the first forming part to the outside.

In this space, the inlet and outlet of the FRP layer are accommodated.

Therefore, if you remove the placing mold from the FRP molded product after demolding,
A floor pan with a floor heating function is manufactured in which the inlet and outlet are protruded into the bathtub mounting portion.

(Effects of the Invention) The present invention is configured as described above, and has the following advantages.

It is possible to manufacture a floor pan with a floor heating function in which a connection portion between a feed pipe and a return pipe to a water heater is disposed in a bathtub mounting portion.

In addition to the FRP layer application work, it is only necessary to carry out the work of attaching and detaching the placing die, which is a simple operation.

Since a molding die composed of the first and second molding parts can be an old one, it is not expensive as an apparatus and does not cause a rise in manufacturing cost.

(Example) Next, an example of the present invention will be described with reference to the drawings.

1 to 4 show the steps of manufacturing a floor panel with a floor heating function according to this embodiment.

1 shows the first step, FIG. 2 shows the second step, and FIG.
The drawing shows the third step, and FIG. 4 shows the fourth step.

The first step in the first forming part of the tub mounting part (c ₁₎ (a _1), the stepped surface (1 forming the boundary between the washing area portion (c ₂₎ a second molding unit for (a ₂₎ ) Is attached to a stand mold (B) having two through holes (b ₁ ) and (b ₁ ).

In this figure, (A) is a mold for the floor pan called a tub mounting standing floor pan, bathtub mounting portion (c ₁₎ a first mold for the (a _1), a washing place unit (c ₂ ) and the second molding die (a ₂ ).

In step surface (1) is first molded portion (a _1), is an elevational forming a boundary between the second mold portion (a _2).

The placing die (B) has a desired area and a desired thickness, is formed in a rectangular shape using a desired material such as a wood material, a metal material, a synthetic resin material, and has two through holes (b ₁ ) (b ₁ ) are opened in parallel, and are attached to the step surface (1) with a double-sided tape or an easily detachable means (FIG. 1).

In the second step, the FRP layer (2) is applied to the entire surface of the placing die (B) excluding the through holes (b ₁ ) and (b ₁ ) and the entire surface of the first and second molded portions (a ₁ ) and (a ₂ ). It is to be.

The FRP layer (2) is formed by a hand lay-up method (FIG. 2). (2 ') is a reinforcing tree. At this time, a release agent is applied to the entire surface of the placing die (B) and the entire surface of the first and second molding dies (a ₁ ) and (a ₂ ).

In the third step, after the FRP layer (2) is solidified, the second molded part (a ₂ )
The heating floor panel (3) with the hot water pipe (3a) installed inside is fixed to the FRP layer (2) part of the hot water pipe (3a) and the hot water inlet (3b) and hot water outlet (3c) at both ends of the hot water pipe (3a) Through hole (b ₁ ) in stand type (B)
(B ₁ ) is to be inserted at each position (FIG. 3).

The floor panel with heating (3) consists of the panel body (3d), the hot water pipe (3a), the metal fittings (3e) for the hot water pipe (3a), and the heat sink (3
f), consisting of adhesive (3g) (3j) (Fig. 5) (Fig. 6)
Figure).

The panel body (3d) is formed using synthetic wood or foam material to have a slightly smaller area and a desired thickness than the area of the washing area (c ₂ ). This panel body (3d) has a meandering with an open surface. The groove (3h) is recessed.

The holding member (3e) is formed of a copper plate, and has a U-shaped holding portion (3e ') and a support (3e ") horizontally extending in opposite directions from both free ends of the holding portion (3e'). ) (3e ″), and have a length corresponding to the straight portion (3h) in the groove (3h).
e ″) (3e ″) With the adhesive (3g) applied to the back surface, the support pieces (3e ″) and (3e ″) are attached to the surface of the panel body (3d), and the holding portion (3e ′) ) Are arranged in the straight portion (3h ′) of the groove (3h).

The hot water supply pipe (3a) is a copper pipe, is housed in the groove (3h) while being held by the holding section (3e '), and has a hot water inlet (3b) and a hot water outlet (3c) connected to the panel body ( 3d).

The radiator plate (3f) is a copper plate having an area slightly larger than the piping range of the meandering hot water supply pipe (3a), and is superposed on the upper surface of the support pieces (3e ″) and (3e ″) of the holding bracket (3e). In this state, the metal fittings (3j) that penetrate the support pieces (3e ″) and (3e ″) from above and bite into the panel body (3d) are driven into the support pieces (3e ″) (3
e ″) is fixed on.

 The casting bracket (3j) is a nail, a stapler, or the like.

An adhesive (3 g) is filled between the support pieces (3e ″) and (3e ″) surrounding the holding bracket (3e), the heat radiating plate (3f), and the panel body (3d). The heat radiating plate (3f) that is not opposed to the pieces (3e ″) and (3e ″) is fixed to the panel body (3d).

The floor panel with heating (3) is fixed to the FRP layer (2) after solidification applied to the second molded portion (a ₂ ) with an adhesive (3 g).

The hot water inlet (3b) and the hot water outlet (3c) of the hot water pipe (3a) are respectively inserted into the through holes (b ₁ ) and (b ₁ ) of the placing die (B).

In detail, the hot water inlet (3b) and the hot water outlet (3c) are provided with a flange (4a) in the middle and a rear end of the connecting pipe (4) having a connecting screw (4b) at the front end, respectively. 3a) is fixed to both ends by brazing (5) in a water-tight manner by brazing (5), and the connecting screw (4b) is placed through the anti-rotation piece (6) and the through hole (b ₁ ) of the mold (B) is placed. (B ₁ ) (FIG. 8).

The fourth step is a FRP molded product (C) (bath mounted floor pan)
After removing the mold, the placing mold (B) is removed from the FRP molded product (C) (FIG. 4).

After this step, the FRP molded product (C) (bath-placed floor pan) has a washing place (c ₂ ) in the bath-place rest (c ₁ ).
Tub mounting portion from the stepped elevation (7) (c ₁₎ inside the bathing opening (3b), the tap hole (3c) protrudes with.

Next, the hot water inlet (3b) and the hot water outlet (3c) are connected to the water heater (D).
The structure when connecting to the feed pipe (d ₁ ) and return pipe (d ₂ ) will be described.

The inlet (3b) and the outlet (3c) are provided with a nut (8) screwed into the connecting screw (4b) and the rotation preventing piece (6) to form a stepped surface (7) and a reinforcing tree (2 '). It is held at a predetermined position by being clamped.

The nut (8) is caulked with silicon (10) to close the communication hole (9) formed in the step surface (7).

The feed pipe (d ₁ ) and the return pipe (d ₂ ) are fixed to the inlet (3b) and the outlet (3c) via the asbestos packing (11) with the cap nut (12) (FIG. 8).

The water heater (D) of this embodiment is installed outside the bathroom (E),
A feed pipe (d ₁ ) penetrates the chamber wall (e) and is introduced under a counter (13) supported in a cantilever manner along the chamber wall (e), and a return pipe (d ₂ ) is once It returns to the water heater (D) via the bathtub (14).

(15) is a switching valve. By operating the switching valve (15), a system returning to the water heater (D) via the hot water pipe (3a), the hot water pipe (3a) and the bathtub (14) are formed. Return to water heater (D) again 2
You can select two routes.

[Brief description of the drawings]

Drawings show the manufacturing method of the floor pan with floor heating function of the present invention, FIGS. 1 to 4 are longitudinal sectional front views showing respective steps, and FIG. 5 is a plan view of a floor panel for heating, partially cut away. 6 is an enlarged sectional view of (6)-(6) of FIG. 5, FIG. 7 is a transverse sectional view of a bathroom showing a use state of a floor pan with a floor heating function, and FIG. 8 is (8) of FIG. -(8) Enlarged sectional view, Figs. 9 to 11 are process diagrams of the conventional manufacturing method, and Fig. 12 is a vertical sectional front view showing a use state of the floor pan with a floor heating function obtained by the manufacturing method. In the drawings, (A): forming die, (a ₁ ): first forming portion, (a ₂ ): second forming portion, (1): step surface, (B): placing die, (b ₁ )
(B ₁ ): through hole, (2): FRP layer, (3): floor panel for heating, (3a): hot water pipe, (3b): hot water inlet, (3c): hot water outlet, (c ₁ ) : Bathtub placement part, (c ₂ ): Washing place part, (C): F
RP molded product (bath mounted floor pan)

Claims (1)

(57) [Claims] In a first forming part for a bathtub mounting part, a first mold having two through holes is attached to a step surface forming a boundary with a second forming part for a washing part. A second step of applying an FRP layer on the surface of the placing mold excluding the through-holes and the entire surface of the first and second forming sections; after the FRP layer is solidified, a hot water pipe is provided on the FRP layer portion of the second forming section; The third is to fix the floor panel for heating in which the hot water is installed and to place the inlet and outlet at both ends of the hot water pipe into the through holes in the mold.
And a fourth step of removing the placing mold from the FRP molded article after removing the FRP molded article from the mold.