JPH0618479U - Waterproof pan - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a lightweight waterproof pan with a strong structure. A waterproof pan floor section (10) includes a front surface layer (1a) and a back surface layer (1b) that are opposed to each other at a predetermined interval.
The hard foam layer 1c sandwiched between the both 1a and 1b is composed of at least three layers of resin.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a waterproof pan used for floors of bathroom units, toilet units, etc. used in general houses.

[0002]

[Prior art]

 Waterproof pans used for bathroom units are generally made of resin. Conventionally, as a forming method, there is a so-called hand lay-up method or spray-up method in which a resin is laminated on a half mold in which only the surface shape of a waterproof pan is formed, and BMC or SMC is pressed. Then, a method such as forming into a predetermined bread shape is adopted.

[0003]

[Problems to be solved by the device]

 By the way, according to the molding method described above, the floor is reinforced by arranging steel or plywood in several places inside or on the back surface of the molded product. The efficiency of the reinforcement is not high due to the poor quality, and as a result, the reinforcement must be added excessively. For this reason, the waterproof pan obtained by this molding method, especially the waterproof pan with a large floor area, becomes heavy and the workability in a narrow space during installation becomes extremely poor.

On the other hand, the waterproof pan formed by the above method employs a reinforcing structure in which ribs and the like are integrated to reduce the weight, but since the reinforcing is linear reinforcement, it depends on the floor load. Inevitably, there is a region where the stresses tend to concentrate locally and the strength is partially weak.

The present invention has been made in view of such circumstances, and an object thereof is to provide a lightweight waterproof pan having a strong structure.

[0006]

Means for Solving the Problems A configuration for achieving the above object will be described with reference to FIG. 1 corresponding to an embodiment. In the waterproof pan of the present invention, the bread floor portions 10 are mutually predetermined. By at least three layers of resin, the front surface layer 1a and the back surface layer 1b facing each other with a space between them, and the hard foam layer 1c sandwiched between the both layers 1a and 1b. Characterized.

[0007]

[Action]

 Since the floor surface of the waterproof pan 1 is planarly reinforced by the hard foam material layer 1c, the surface load is well dispersed and there is no problem in strength. Moreover, the rigid foam material as the reinforcing material is lightweight.

[0008]

【Example】

 1A and 1B are views showing a structure of an embodiment of the present invention, in which FIG. 1A is an enlarged sectional view of an essential part, and FIG. 1B is an overall perspective view.

The waterproof pan 1 is a resin molded product formed by a hand lay-up method or the like, and is integrally formed with a pan floor 10, a rising edge 11 and a wall panel mounting surface 12 continuous with the pan floor 10.

The bread floor 10 includes a front surface resin layer 1a, a back surface resin layer 1b facing the front surface resin layer 1a at a predetermined interval, and a hard foam resin layer 1c sandwiched between the two layers 1a and 1b. And leg load distribution layer 1d.

The surface resin layer 1a is formed of a colored waterproof resin, and its upper surface is formed in a shape having a non-slip effect. On the other hand, the back surface resin layer 1b is a resin sheet material, and is provided for moisture prevention. The leg load distribution layer 1d is a resin plate material and is arranged on the upper surface of the back surface resin layer 1b. The leg load distribution layer 1d is used as a material for the back surface resin layer 1b in place of the sheet material, and is relatively small. It can be omitted if a resin board with high strength is used.

The hard foam resin layer 1c is made of, for example, hard urethane, and the floor surface of the waterproof pan 1 is planarly reinforced by the resin layer 1c. Here, the rigid foamed resin layer 1c may be molded at the same time as the molding of the surface resin layer 1a, or in addition to this, a plate-shaped foamed molding material that is foam-molded in advance may be formed on the back surface of the surface resin layer 1a. A method of adhering may be adopted. Even if the method of adhering the foam material is adopted, the foam material itself is a resin, so that the adhesion with the surface resin layer 1a is high.

Although not shown, a reinforcing plate integrally formed on the upper ends of the legs is attached to the portion where the legs of the waterproof pan are arranged in order to avoid stress concentration.

[0014]

[Effect of device]

 As described above, according to the waterproof pan of the present invention, the pan floor is made up of at least three layers of resin, the front resin layer and the back resin layer, and the hard foam resin layer sandwiched between the two layers. As a result, product strength and weight reduction can be achieved, and this weight reduction facilitates handling during installation and construction, and as a result, improves installation workability.

[Brief description of drawings]

1A and 1B are views showing a structure of an embodiment of the present invention, in which FIG. 1A is an enlarged sectional view of an essential part, and FIG.

[Explanation of symbols]

 1-Waterproof pan 10-Bread floor 1a-Front surface resin layer 1b-Reverse surface resin layer 1c-Hard foam resin layer

Claims (1)

[Scope of utility model registration request] 1. A waterproof pan formed of a resin, wherein a pan floor comprises a front surface layer and a back surface layer facing each other with a predetermined gap, and a hard foam layer sandwiched between the front surface layer and the back surface layer. A waterproof pan comprising at least three layers of resin.