JPH019883Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a band-shaped decorative material made of synthetic resin that is applied to the lowest part of a wall, the rising part of a staircase, etc.

[Prior art and its problems]

Currently, when installing synthetic resin flooring not only in general houses but also in building interiors, especially in kitchens and washrooms that use water, synthetic resin called baseboards are placed at the bottom of the walls. A synthetic resin welding rod is applied to the corner where the baseboard meets the flooring, and a jet heater is used to melt it and create a seal to prevent water from leaking through the gaps. There is.

In this way, synthetic resin welding rods are used for sealing work because the baseboard is made of a low-grade material with a lot of filler (for example, 70% filler) that is difficult to weld. This is because it cannot be welded with a jet heater.

On the other hand, it is possible to weld without using a welding rod by using a high-quality material, that is, one with a small amount of filler (e.g., calcium carbonate), but synthetic resins such as vinyl chloride, which have a small amount of filler, can be used. This is partly due to the fact that it is more expensive than synthetic resins with a lot of fillers, but because the material is soft, it is difficult to produce flat and uniformly thick sheets, which makes it difficult to use lower-grade materials. This is the biggest reason why I had to use it. That is, when the amount of filler is increased, the so-called stiffness becomes stronger, and a flat plate with uniform thickness can be manufactured.

In this way, synthetic resin baseboards made of low-grade materials that are commonly used in the past can be used during waterproofing work.
Not only does it require a welding rod, but it also has the disadvantages of lack of luster and poor aesthetics, and the tendency for cracks to form at bent portions.

As a result of various experimental studies, the inventor of the present invention has improved the structure to eliminate the need for welding rods, as well as to create a beautiful design that can also be used to hide the edges of carpets in living rooms. It is an object of the present invention to provide a band-shaped decorative material made of synthetic resin that can be used.

In other words, this invention consists of a wide base plate made of a material with a low synthetic resin content and a large amount of filler, and a narrow base plate on the back side of the skin layer made of a material with a small amount of filler and a high content of synthetic resin. The base plate is arranged side by side and laminated together, and is made of the same material as the skin layer,
The back surface of the narrow base plate and the boundary between the wide and narrow base plate are covered.

〔Example〕

Embodiments of this invention will be described below based on the drawings.

Figure 1 shows a cross-sectional view of the embodiment of the present invention.
The skin layer consists of high-grade materials with low filler (40-30%) and high vinyl chloride content (60-70%), 2
and 3 are a wide base plate made of a low-grade material with a high content of bulking agent (calcium carbonate) (80%) and a low content of vinyl chloride (20%), which are integrally laminated side by side on the lower surface of the skin layer 1; It is a narrow base plate.

4 is a welding layer made of the same material as the skin layer 1 and laminated to cover the edge of the skin layer on the narrow base plate 3 and then the bottom surface of the base plate 3; 5;
is a connection layer that extends over and covers the lower surface of the boundary X between the base plates 2 and 3, and this connection layer 5 is integrated with the skin layer 1 at the boundary X (bending part); is formed thinly.

Note that this decorative material is extruded all at once using an extruder.

Since it is constructed as described above, as shown in FIG. Glue using adhesive and attach at the border
The back side of the edge presser B bent at 90 degrees and the synthetic resin flooring 7 are heated with a jet heater, and the edge presser B is pressed against the synthetic resin flooring 7. In this way, welding layer 4
is welded to the synthetic resin flooring 7, and the rising portion of the wall is made waterproof.

In other words, waterproofing can be done without using conventional welding rods.

Also, unlike conventional synthetic resin baseboards that do not have flexible bending parts X, this design has a bendable edge holding part B, so it is a suitable interior material for edge finishing when carpeting is laid. . That is, since the bent portion X is flexible, the edge pressing portion B blends well with the surface of the carpet and adheres closely along the unevenness of the carpet.

The edge presser part B can be easily stretched by heating with a jet heater, so it can be stretched on protruding parts such as pillars without cutting. For construction in the corner of a room, cut the edge presser part B into a triangular shape and attach it to the seam. All you have to do is heat it with a jet heater and weld it, and it is an excellent material for waterproofing and edge closures.

Note that the bending part
It is durable and will not crack or break.

Also, by providing this connection layer 5, the bending portion
It has now become possible to mold a band-shaped decorative material with an extruder. That is, in the case of a structure in which the base plates 2 and 3 are simply connected by the skin layer 1 without adding the connection layer 5, the molded product is unsteadily extruded due to the unbalance of the cross-sectional structure, and the product does not become a product.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a diagram showing its use. 1... Skin layer, 2 and 3... Base plate, 4... Welding layer, 5... Connection layer.

Claims (1)

[Scope of utility model registration request] A wide base plate 2 made of a material with a low synthetic resin content and a large amount of filler and a narrow base plate 3 are placed on the back side of the skin layer 1 made of a material with a small amount of filler and a high content of synthetic resin. A composition characterized in that the back surface of the narrow base plate 3 and the lower surface of the boundary X between the base plates 2 and 3 are coated 4, 5 with the same material as the skin layer 1, which are stacked side by side and integrally. Resin strip decorative material.