RU163609U1 - PANEL MULTILAYERED FOR FLOOR AND WALL COVERINGS - Google Patents

Abstract

A multilayer panel for floor and wall coverings, the base layer of which, having four-way connecting means for fixing the panel from lateral movement relative to other panels, is made of two parts made of plywood located along the edges of the base along the short sides of the panel, and the middle part located between them, made of bars of a less dense wood than the plywood material of the extreme parts, with the location of wood fibers mainly in transverse to the relatively long sides of the panel.

Description

The technical field to which the utility model relates.

The utility model relates to the field of construction, in particular to panels for floor and wall coverings.

State of the art

From Japanese Patent JP-20011329681, publ. November 30, 2001 [1], a flooring board is known having a multilayer base of wood material and a surface layer, in which the base contains a middle layer of plywood and upper and lower layers of fiberboard (medium density fiberboard).

A disadvantage of the known design [1] is that the base layer bearing the connecting elements is made entirely of expensive durable wood material having a high density, which increases the weight of the flooring board.

Known parquet flooring (see the description of the invention according to patent RU 2307219, publ. 05.27.2005) [2], the base layer of which consists of different wood materials. It has more solid wood with elements of a mechanical locking system, located along the long sides of the parquet flooring. Between them are wooden blocks made of soft and inexpensive wood.

This technical solution is aimed at reducing the cost of parquet flooring and reducing its weight by combining soft and hard wood in the base layer.

Due to the fact that in the known device [2] parts of the base layer of harder and accordingly dense wood species are located along the long edges of the parquet flooring, they have a sufficiently large volume, due to which, the parquet flooring is not light enough and low cost in comparison with [1].

Utility Model Disclosure

The technical problem to which the utility model is directed is to obtain an inexpensive and fairly lightweight multilayer panel design that can be used for floor and wall coverings, as well as expanding the arsenal of technical means designed for these coatings.

Technical solution [2] is the closest analogue of the proposed technical solution.

The utility model contains the following set of essential features: a multilayer panel for floor and wall coverings, a base layer of which having closing-type connecting means on four sides, designed to fix the panel from lateral movement relative to other panels, is made of two parts made of plywood located along the edges of the base along the short sides of the panel, and the middle part located between them, made of bars of less dense wood than the fan material Xer extreme parts, with the location of the wood fibers mainly in the transverse direction relative to the long sides of the panel.

Common essential features of a utility model with a technical solution [2] are: a multilayer panel for floor and wall coverings, the base layer of which having locking type connecting means, designed to fix the panel from lateral movement relative to other panels, is made of two made of wood material parts located along the edges of the layer along the short sides of the panel, and the middle part between them made of wood less dense than the edge material these parts.

Distinctive essential features of the utility model are: the base layer of wood material on four sides is equipped with connecting means of the closing type, while parts of the base layer made of a denser material than the middle part of the base layer are made of plywood and are located along the edges of the base along short sides panels, and wood fibers of the bars of the middle part of the base layer are located mainly in the transverse direction relative to the long sides of the panel.

It is known that plywood has a higher density and strength compared to the tree from which it is made, and, unlike wood, whose shear, bending and tensile strength are greater in the direction of the fibers than across the fibers, plywood, especially with an even number of layers , in different directions has the same strength, higher than the strength of the material from which it is made.

As a result of testing the products of the proposed design, it was found that, despite the fact that the connecting means of the closing type along the long sides in the middle part of the base layer are made of less dense and strong wood, they provide reliable connection of the panels to each other in the transverse direction relative to the long sides panels due to the lower specific load created at the contact points of the joints on the long sides, compared with the specific load at the contact points of the joints on the short sides us.

The location of the wood fibers in the middle of the base layer mainly in the transverse direction relative to the long sides of the panel increases the strength of the means of connection of the closing type, because wood is the strongest precisely in the direction of the fibers.

The use of plywood for parts of the base layer, located at the edges of the base along the short sides of the panel, provides reliability and strength of the means of connection of the closing type along the short sides of the panel and at the ends of the long sides of the panel.

Brief Description of the Drawings

In FIG. 1 shows the design of a multilayer panel for floor and wall coverings - view from the side of the upper (front) layer.

In FIG. 2 shows a section aa in FIG. one.

In FIG. 3 shows a section BB in FIG. 1 - rotated clockwise.

In FIG. 4 shows a section bb in FIG. 1 - rotated clockwise.

In FIG. 5 shows a section G-G section in FIG. one.

In FIG. 6 shows the design of the mechanical connection of two panels by means of a closing type connection.

In FIG. 7 is a diagram of the mechanical connection of two panels by means of a closing type connection.

Utility Model Implementation

The utility model can be implemented in the following design.

The top layer 1 of the panel can be made of solid and valuable wood veneers, while the top layer can consist of individual veneer elements, the size of which in plan corresponds to the size of the parquet, fitted tightly without a gap to each other, giving the impression of a parquet coating. The outer flat surface of the upper layer of the panel, having a rectangular shape and limited to short 3 and long sides of the panel, is the front.

The top layer 1 can be protected against wear by any wear-resistant coating.

The middle layer, which is the base layer, is made combined. The base layer consists of three parts. The two extreme parts 2 are made of plywood and are located along the short sides 3 of the panel. Sides should be understood in FIG. 1 side surfaces bounding the front surface of the panel

The middle part 4 is located between the extreme parts 2 and can be made of any wood blocks, less dense and strong, but lighter than the plywood used for the extreme parts.

The bottom layer 5 is leveling and is usually made of soft wood. It protects the middle layer from moisture penetration and smoothes out the unevenness of the base on which the panel is laid.

All layers and parts 2 and 4 of the base layer are still connected to each other by gluing.

In the base layer, by milling along four sides of the panel, grooves of a certain configuration are made, forming protrusions 6 and depressions 7. These protrusions and depressions form closure-type connecting means for fixing the panels from transverse (in the plane of the drawing in Fig. 6) movement relative to other panels .

The panels are interconnected mechanically by inserting the protrusions 6 of one panel into the depressions 7 of the other at a slight angle of about 15 ° and turning to a position in which the protrusion 8 of one panel is fixed due to friction or latches in the cavity 9 of the other panel. As a result of this, the upper (front) and lower surfaces of the panels are located in the same plane. These means of connection of the closing type are known, including from the source [2], and are not the subject of a utility model. These connections provide the ability to disassemble and reassemble the panels several times due to minor damage to the contact surfaces of the joint during assembly and disassembly.

The assembly of panels is carried out in the following order.

First connect the panels on the short sides. Then the assembled panels are connected on the long sides at the same time. When assembling the panels, it is possible to connect the panels so that the edges of the short sides lie on the same line or are offset so that the means of connection of a denser and stronger material partially or completely contact each other. This increases the strength and reliability of the connection along the long sides of the panel.

Claims (1)

A multilayer panel for floor and wall coverings, the base layer of which, having four-way connecting means for fixing the panel from lateral movement relative to other panels, is made of two parts made of plywood located along the edges of the base along the short sides of the panel, and the middle part located between them, made of bars of a less dense wood than the plywood material of the extreme parts, with the location of wood fibers mainly in transverse to the relatively long sides of the panel.

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