RU102205U1 - LAMINATED BOARD FROM WOOD - Google Patents

Abstract

 A glued shield made of wood, consisting of one or more layers made of glued along the edges of the blanks, characterized in that the shield includes layers glued from blanks of a trapezoidal section with the formation on one of the surfaces of each layer of longitudinal recesses of a triangular section.

Description

The utility model relates to the woodworking industry and can be used in the manufacture of furniture, interior elements and for the manufacture of building panels for various purposes.

Known glued shield of wood, consisting of one or more layers made of blanks (battens, bars), which are glued to each other along the edges [1]. The blanks can be solid, but also joined along the length of the butt or on a mini-thorn.

Single-layer glued panels with a thickness of 16-20 mm are widely used for the manufacture of furniture and various interior elements, operated at relatively small loads. At higher loads or the presence of special design requirements glued boards of greater thickness are used. However, shields of increased thickness have considerable weight, which often negatively affects the consumer properties of products. In addition, in the production of glued boards, a lot of wood raw materials and glue are consumed.

The problem solved by this utility model is to reduce the weight of glued panels of increased thickness, improve their consumer properties, as well as reduce the consumption of wood raw materials and glue in their production.

The solution to this problem is provided by the fact that in a glued board made of wood, consisting of one or more layers made of glued along the edges of the workpieces, the layers are glued from the workpieces of a trapezoidal section with the formation on one of the surfaces of each layer of longitudinal recesses of a triangular section.

Figure 1 shows a well-known single-layer glued shield made of wood, consisting of blanks 1 glued along the edges 2.

The inventive glued shield includes layers consisting of trapezoidal blanks 1 glued along narrow edges 2 (Fig. 2a) or narrow and wide edges 3 (Fig. 2b) with the formation on one of the surfaces of the layer of longitudinal recesses of triangular section 4. Another surface the bonded layer remains flat. A shield of increased thickness may consist of several layers glued together in a different order. Figure 3 presents as an example two varieties of double-layer shields. The proposed glued shield as a layer may include a known single-layer shield glued from rectangular blanks.

A glued shield of wood is made as follows. First, from the dried boards with the help of trimming, longitudinal cutting and four-sided machines, blanks of a given trapezoidal cross section are made. Then these blanks are placed on the conveyor of a conventional press for the manufacture of glued boards, if necessary, turning every second of them through 180 °, and the layers are glued together. Then, in another press of two or more layers, a shield of the required thickness is glued.

The proposed glued board is 20-30% lighter than the known glued board of the same size. The necessary mechanical and operational properties of these panels can be provided by selecting the size and cross-sectional shape of the workpieces, as well as by choosing the number of layers and their orientation in the panel. In the production of such boards, 15-25% less wood will be required than for the manufacture of conventional boards, while the glue consumption will be reduced by 40-50%. The cost of production of such shields will be 10-15% lower compared to conventional shields. These panels can be used for the manufacture of furniture, countertops, bar counters, interior elements, in construction, etc.

Due to the presence of internal cavities, the thermal insulation properties of the proposed boards are 25-30% higher than that of conventional boards. This will allow them to be effectively used in the construction of wooden houses for the manufacture of wall and ceiling multilayer panels up to 300 mm thick and even more. Such a panel will have a sufficiently high stability, and its outer and inner surfaces will be almost ready for decoration. In addition, the presence of longitudinal and transverse cavities allows you to lay communications in them, which will significantly increase the degree of factory readiness and improve the appearance of the walls of a wooden house. Also, from such shields of appropriate thickness, internal partitions can be made.

1. Kreidlin L.N. Joiner's works. Textbook for prof. schools and training workers in the workplace. M .: Higher school, 1974. - P.51.

Claims (1)

A glued shield made of wood, consisting of one or more layers made of glued along the edges of the blanks, characterized in that the shield includes layers glued from blanks of a trapezoidal section with the formation on one of the surfaces of each layer of longitudinal recesses of a triangular section.