JP2805129B2 - Waterproof pan and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof pan constituting a bottom surface of a unit bathroom or the like and a method of manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, a waterproof pan constituting a bottom surface of a unit bathroom or the like is formed of FRP as shown in FIG. A frame 52 is provided at a predetermined position in a grid pattern, and a nut 5 is provided on the lower surface of the reinforcing frame 52.
3 is welded to the nut 53 and an adjustment bolt 54 is screwed from below. The adjustment bolt 54 is screwed into and retracted from the nut 53 to adjust the height of the waterproof pan 51 from the floor F. Is configured to be possible. In the structure shown in FIG. 4, it is necessary to form a through hole through which the adjustment bolt 54 penetrates also in the reinforcing frame 52, and the adjustment allowance of the adjusting bolt 54 is limited to the range of the inner size of the reinforcing frame 52. However, there is a problem that the adjustment allowance of the adjustment bolt 54 cannot be increased, and there is a problem that the adjustment bolt 54 can be provided only at the position where the reinforcing frame 52 exists.

In a type in which a reinforcing surface member 62 is attached to the back surface of a waterproof pan 61 as shown in FIG. 5 and reinforced, a support bracket 63 is attached to the lower surface of the reinforcing surface member 62 with a screw 65. Attach, nut part 63a of this support bracket 63
A structure in which the adjustment bolt 64 is screwed from below is adopted.
It takes time and effort to attach 3 to the reinforcing surface member 62 via the screw 65. If the reinforcing surface member 62 is formed of urethane or the like, the effect of the screw 65 is poor, and the reliability of the mounting strength of the support bracket 63 is reduced. There was a problem of chipping.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned conventional problems, and it is possible to increase the adjustment allowance of the adjustment bolt and to ensure the degree of freedom of the adjustment bolt mounting position. The first gist of the present invention is to provide a bread and a method for manufacturing the same. A first gist of the invention is to form a projection projecting downward at a predetermined position on a reinforcing surface material for reinforcing the back surface of the waterproof pan. Means that a nut into which an adjustment bolt can be screwed is embedded.
The second point is that a sealed space is formed on the back surface of the waterproof pan, a mold is provided, an adjust bolt nut is provided in the closed space, and urethane or the like is provided in the closed space. A method for manufacturing a waterproof pan, characterized in that a reinforcing surface material is injected, filled and cured, and the nut is embedded in the reinforcing surface material.

[0005]

In the first aspect, a projection is formed on the reinforcing surface material on the back surface of the waterproof pan, and a nut is embedded in the projection, so that an adjusting bolt is screwed into the nut from below. Then, the height of the waterproof pan from the floor surface can be favorably adjusted by the adjustment bolt. Also, in the second aspect, the nut can be buried beforehand when the reinforcing surface material is injected and filled with a mold on the back surface of the waterproof pan and hardened, and the nut can be buried in a free position. Therefore, the nut can be buried in a predetermined position at the same time as the forming of the reinforcing surface material without the need for the conventional welding of the nut or the mounting of the support bracket, and the manufacturing becomes easy.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a manufacturing process of a waterproof pan, in which a waterproof pan 1 made of FRP is turned upside down, its bottom surface 1a is arranged on an upper side, and a wooden or resin mold is placed above the bottom surface 1a. 2 is arranged. A mold side frame 2a is arranged around the entire periphery of the mold 2, and when the mold 2 is placed on the waterproof pan 1, a closed space is formed between the bottom surface 1a and the mold 2.

For example, urethane is injected into the sealed space from the outside using a hose or the like, and the filled urethane is foamed in the sealed space, and the urethane is hardened. 3 can be formed integrally. In this example, a bolt 5 is previously disposed at a predetermined position of the mold 2, and a high nut 4 having a high height is screwed inside the bolt 5. In this state, urethane is injected into the closed space as described above, and nuts 4 and 4 are placed at predetermined positions in the reinforcing face material 3 to be formed.
Can be buried. In addition, if a thin portion is formed at the position of the bolt 5 of the mold 2, this portion becomes the protrusion 3a of the reinforcing surface material 3, and if the nut 4 is embedded in the protrusion 3a, the strength is good. Will be secured.

FIG. 2 is a perspective view of a main part of the nut 4 embedded in the projection 3a from the back side. In this example,
Type 2 on the bathtub installation side and the washing scene side of waterproof pan 1
Although the reinforcing face materials 3 and 3 are formed by using 2, the reinforcing face material 3 can be formed on the entire back surface of the waterproof pan 1 by using an integral type.

In this embodiment, the reinforcing surface material 3 is made of urethane. However, besides urethane, another fluid resin such as a thermosetting resin can be used. The reinforcing face material 3 can also be formed by injecting and filling cement or the like containing hollow beads. In addition, it is also possible to form by injecting while applying pressure during the injection.

After the reinforcing face material 3 injected in the state of FIG. 1 has hardened, the bolts 5 and 5 are removed, and the mold 2 is removed.
In this state, the adjusting bolts 6, 6, and 6 are screwed into the nuts 4 buried on the back surface of the waterproof pan 1, respectively, and the waterproof pan 1 is turned upside down and placed at a predetermined position on the floor F as shown in FIG. The height of the waterproof pan 1 from the floor surface F can be satisfactorily adjusted by adjusting the adjustment bolts 6 by appropriately adjusting the adjustment bolts 6, 6, 6 to be advanced and retracted with respect to the nuts 4, 4.

As described above, in the present embodiment, the nut 4 is buried at a predetermined position when the reinforcing face material 3 is formed, so that it is not necessary to weld the nut 53 to the reinforcing frame as in the conventional case. As described above, there is no need to attach a separate support fitting 63, the number of work steps is reduced, and the waterproof pan 1 can be easily manufactured. Further, the position of the nut 4 is easily adjusted by appropriately changing the shape and the position of the mold 2, and the degree of freedom of the mounting position of the adjusting bolt 6 is secured as compared with the conventional one. In addition, the adjustment allowance of the adjustment bolt can be increased without being hindered by the reinforcing frame or the like, and the height adjustment by the adjustment bolt 6 can be further improved.

[0012]

As described above, according to the present invention, a reinforcing member for reinforcing the back surface of a waterproof pan is provided with a projection projecting downward at a predetermined position, and a nut capable of screwing an adjustment bolt is formed in the projection. By being buried, there is no need to weld the nut or attach a separate support bracket as in the past, and screw the adjustment bolt directly to the buried nut,
The height of the waterproof pan can be easily adjusted by screwing the adjusting bolt forward and backward, and a large allowance for adjusting the adjusting bolt can be obtained without being hindered by the reinforcing frame or the like. Also, a sealed space is formed on the back of the waterproof pan, a mold is arranged, nuts for adjustment bolts are arranged in the sealed space, and a reinforcing surface material such as urethane is injected and filled into the sealed space. In the method for manufacturing a waterproof pan in which the nut is buried in the reinforcing face material, when the reinforcing face material is formed on the back surface of the waterproof pan, the nut for the adjustment bolt is buried at a predetermined position at the same time. This has the effect of facilitating the production of waterproof pans.

[Brief description of the drawings]

FIG. 1 is a cross-sectional configuration diagram illustrating a process of manufacturing a waterproof pan.

FIG. 2 is a perspective view of a nut embedded in a protrusion formed on a reinforcing face material.

FIG. 3 is a cross-sectional configuration diagram illustrating a state in which an adjustment bolt is attached to a manufactured waterproof pan and installed on a floor surface.

FIG. 4 is a cross-sectional view of a relevant part of a conventional adjusting bolt mounting structure.

FIG. 5 is a main part configuration diagram showing a conventional adjusting bolt mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterproof pan 2 type | mold 2a type | mold side frame 3 Reinforcement surface material 3a Projection part 4 Nut 5 Bolt 6 Adjustment bolt

Claims (2)

(57) [Claims] 1. A projection projecting downward at a predetermined position is formed on a reinforcing surface material for reinforcing a back surface of a waterproof pan, and a nut capable of screwing an adjustment bolt is embedded in the projection. A waterproof pan characterized by the following. 2. A closed space is formed on the back surface of the waterproof pan, a mold is provided, a nut for an adjustment bolt is provided in the closed space, and a reinforcing surface material such as urethane is provided in the closed space. Wherein the nut is buried in the reinforcing surface material.