US20040161988A1

US20040161988A1 - Disfigure-resistant plastic-string mat

Info

Publication number: US20040161988A1
Application number: US10/762,230
Authority: US
Inventors: Larry Yaw
Original assignee: Union Looper Co Ltd
Current assignee: Union Looper Co Ltd
Priority date: 2003-02-12
Filing date: 2004-01-23
Publication date: 2004-08-19
Also published as: TW563492U

Abstract

A disfigure-resistant plastic-string mat includes a scraping layer and a lattice-shaped layer fused under the scraping layer. The scraping layer is made of plastic elastic strings formed randomly and irregularly into piled up countless rings interlocking an intercrossing with one another to define countless gaps. The lattice-shaped net layer is woven of fiber of high strength and fused with the scraping layer by means of immersion in plastic solution homogeneous with the scraping layer under high temperature, and firmly combined with the scraping layer after cooled so that the scraping layer may not easily shrink or lengthen, constricted by the lattice-shaped net layer.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a mat, particularly to one disfigure-resistant mat made of plastic string.

2. Description of the Prior Art

Mats are commonly placed at the entrance or the doors of living houses or public buildings, for scraping off dirt, mud or water stuck under shoes by friction between the mats and shoes, so inner floors may not be smeared.

A conventional plastic-

string mat

10 is shown in FIG. 1, made of high-molecule plastic elastic slender strings 11 randomly and irregularly interlocking and intercrossing with one another. Then it has countless gaps 12 formed among them. Therefore, the plastic slender strings 11 may produce friction force to effectively scrape dirt, mud or water adhered on the bottom of shoes worn by people, and dirt, mud or water may drop down through the gaps 12 among the plastic strings 11 to the ground where the mat is placed. Then the upper surface of the mat 10 does not have dirt, mud or water remained thereon. Thus the surface of a mat is not liable to be smeared, kept always clean dry so that it may be serviceable for a long term, durable in any kind of climate, and quite popular in use.

However, as the conventional plastic-string mat is made of plastic, which is generally contractible, it may shrink to smaller size than its normal one and does not cover the area it needs to. Further, the interlocking and intercrossing plastic strings may produce looseness and elasticity to lower its counter tension force, and once the

plastic strings

11 are pulled badly enough to snap, it is not suitable for washing in a washing machine, but have to be washed manually and carefully.

SUMMARY OF THE INVENTION

The purpose of the invention is to offer a disfigure-resistant plastic-string mat consisting of a scraping layer and a lattice-shaped net layer fused together and characterized by not easily contractible and good counter tension force.

The feature of the invention is a scraping layer made of high-molecule plastic strings randomly, irregularly piled up, interlocking and intercrossing with one another to form countless gaps. Another feature is a lattice-shaped net layer woven with fiber is fused under the scraping layer, made of the homogenous material and fused together with the scraping layer by means of immersing in plastic solution under high temperature and then cooled.

BRIEF DESCRIPTION OF DRAWINGS

This invention will be better understood by referring to the accompanying drawings, wherein: [0009]
FIG. 1 is a perspective view of a conventional plastic-string mat: [0010]
FIG. 2 is an exploded view of a first embodiment of a disfigure-resistant plastic-string mat in the present invention; [0011]
FIG. 3 is a cross-sectional view of the first embodiment of a disfigure-resistant plastic-string mat in the present invention; and, [0012]
FIG. 4 is a cross-sectional view of a second embodiment of a disfigure-resistant plastic-string mat in the present invention.[0013]

DETAILED DESCRIPTION OF THE PREFFFERED EMBODIMENTS

A first embodiment of a disfigure-resistant plastic-string mat in the present invention, as shown in FIGS. 2 and 3, includes a [0014] scraping layer 20 and a lattice-shaped net layer 30.
The [0015] scraping layer 20 has a certain thickness, made of high-molecule plastic elastic strings 21 under high temperature and high pressure and cooling, and the plastic strings are formed into countless rings piled up randomly, interlocking and intercrossing with one another and naturally defining countless gaps among them.
The lattice-shaped [0016] net layer 30 is woven with strong PET fiber and fused under the scraping layer 20 under high temperature, having an anti-tension as strong as in the scope of 500-10,000 N/m, and its surface immersed in plastic solution 32 homogeneous with the scraping layer 20 so that the lattice-shaped net layer 30 may fuse with the scraping layer 20 under high temperature and then cooled to firmly combined with the scraping layer 20, without need of using adhesive.
As the lattice-shaped [0017] net layer 30 is made of plastic fiber 31 of high strength and lower tensibility, it may constrict the scraping layer 20 not to shrink or lengthen or disfigure, as it should be otherwise, because of tight fusion of the two layers 20, 30. The elastic strings 21 of the scraping layer 20 would not lengthen or snap, even the mat should be washed in a large washing machine.
Further, a second embodiment of the disfigure-resistant plastic-string mat is shown in FIG. 4, in which a [0018] cushion layer 40 is added to be adhered under the lattice-shaped net layer 30, preventing the mat from slipping.
In short, the mat according to the present invention is formed with the scraping layer and the lattice-shaped net layer fused under the scraping layer, provided with advantages of not easily contractible property and excellent counter tensibility to make it washable in a washing machine. [0019]
While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention. [0020]

Claims

What is claimed is:

1. A disfigure-resistant plastic-string mat comprising:

A scraping layer made of countess number of plastic elastic strings formed to pile up randomly and irregularly as countless rings interlocking and intercrossing with one another, said strings forming countless gaps among them; and,

A lattice-shaped net layer weaved with fiber of high strength and low tensibility and fused under said scraping layer, said lattice-shaped net layer fused with said scraping layer by means of immersing in plastic solution homogeneous with said scraping layer under high temperature, said lattice-shaped layer firmly combined with said scraping layer after cooled in wake of said immersion.

2. The disfigure-resistant plastic-string mat as claimed in claim 1, wherein said fiber is PET of low tensibility.

3. The disfigure-resistant plastic-string mat as claimed in claim 1, wherein said lattice-shaped net layer has counter tensibility in the scope of 500-10,000 N/m.

4. The disfigure-resistant plastic-string mat as claimed in claim 1, wherein a cushion layer is further added under said lattice-shaped layer.