JPH0140893Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tile unit for use in the tile tipping method using irregularly shaped surface tiles.

The tile tipping method is a construction method that was born out of research and development into tile construction technology, such as preventing tiles from peeling and streamlining construction. As a tile unit for conventional pre-loading method, tile unit for formwork pre-loading method and
Tile units for the PC version pre-installation method have been manufactured, but the surfaces of the tiles used in these were limited to flat surfaces. With the recent use of chevron tiles, deep grooved tiles, etc., there has been a desire to develop a technology for processing these irregularly shaped surface tiles into tile units for pre-installation methods. On the other hand, as in Japanese Patent Application Laid-Open No. 57-92252, tiles are adhered to a sheet of hard plastic foam using an adhesive, and
By pressing the group of tiles onto a sheet of hard plastic foam, the hard plastic foam is deformed to match the shape of the tile surface, and the joints are simply filled with ready-made joint material. A tile unit was considered. However, in this tile unit, when using irregularly shaped tiles with large irregularities on the tile surface, it is impossible to greatly deform the hard plastic foam, so a gap is created between the hard plastic foam and the tile surface. When concrete is poured, the joint material moves and some of the concrete mortar wraps around the tile surface in this gap, and the adhesion strength is low because the bonding area between the hard plastic foam and the tile is small. Only so-called tessela tiles and scratch tiles, which have small irregularities, could be used. The present invention has completed a tile unit for pre-installation method using irregular surface tiles by filling the joints and the gaps between the hard plastic foam and the tile with soft plastic foam.

Hereinafter, the present invention will be specifically explained based on the drawings.

In the figure, 1 is a sheet of hard plastic foam, on which many tiles are adhered via double-sided adhesive.
3, 4, and 5 are tiles with irregularly shaped surfaces, and 6
is an ordinary tile with a flat surface.

Although four types of tiles are used in the illustrated embodiment, the use of tile 6 is optional, and only one type of irregularly shaped surface tiles such as tiles 3, 4, and 5 may be used. However, multiple types thereof may be used in combination.

A soft plastic foam 7 is filled in the joints and the gaps between the sheet 1 and the irregularly shaped tiles 3, 4, and 5.

Note that 8 is a ready-made joint material.

The hard plastic foam constituting the sheet 1 has extremely high compression hardness, and once deformed, it hardly returns to its original shape even if external force is removed, and includes polystyrene foam, hard urethane foam, etc. The soft plastic foam used as a filler has extremely low compression hardness and is highly flexible, and when external force is removed, it quickly recovers to its original shape and leaves almost no distortion. Refers to soft urethane foam, etc.

Because soft plastic foam has little expansion and contraction, it is effective in maintaining the dimensional accuracy of sheet tiles used in pre-installation methods. This has the effect of increasing the adhesive strength of the tile sheet and increasing the strength of the tile sheet. Conventionally,
As ready-made joint fillers, semi-rigid plastic foams such as polyethylene foams with smooth surfaces have been used so that the joints will have a smooth finish after concrete is poured. If you simply fill the joints of tile units for irregular-shaped surface tiles with the pre-installation method, as in the past, the joint material will move during concrete pouring and prevent concrete mortar from leaking onto the tile surface. However, in the present invention, when filling the soft plastic foam, it is possible to fill the joint material 8 in advance and pour the soft plastic foam 7 over it as long as the strength of the entire tile unit can be maintained. In the case of this invention,
Since the ready-made joint material does not come into direct contact with the concrete unlike conventional products, it is possible to use inexpensive joint materials with a high expansion ratio and a smooth surface finish, which helps reduce the cost of tile units. However, it is preferable to use both together.

Next, an example of a method for manufacturing the product of the present invention will be explained.

Double-sided adhesive was attached to polystyrene foam (styrene paper) with a foaming ratio of 18 times and a thickness of 3 mm, and the sheets were placed in a mold with the surface facing up to a thickness of 20 mm (5 mm).
Place the sheet on top of a group of chevron-shaped tiles (including protrusions), turn the sheet upside down, being careful not to peel the tile, turn the back side of the tile upwards, and apply a foam magnification of 30x to the joint area.
After filling with 7mm thick polystyrene foam,
Pour a two-component reactive polyurethane sealant into the joint area to a depth of 10 mm from the back of the tile and allow to cure until hardened.

The tile unit of the present invention is as described above, and is extremely useful in that it allows irregularly shaped surface tiles such as chevron tiles and deep groove tiles, which could not be used in the pre-installation method, to be used in the pre-installation method. It is rich.

[Brief explanation of the drawing]

The drawing is a partially sectional view of an embodiment of the present invention. The numbers in the figure are as follows. 1...Sheet of hard plastic foam, 2
...Double-sided adhesive, 3, 4, 5, 6...Tile, 7
... Soft plastic foam, 8 ... Ready-made joint material.

Claims (1)

[Scope of utility model registration request] A group of tiles, including irregular surface tiles, is adhered to a sheet of hard plastic foam using an adhesive.
A tile unit for pre-installation method, characterized in that soft plastic foam is filled in joints and gaps between the sheet and irregularly shaped surface tiles.