Furniture joint, method for making a furniture joint and use of the furniture joint

Abstract

The subject of the application is a method for making a furniture joint and a hidden furniture joint for use in furniture structures, particularly furniture subject to repeated assembly / disassembly, such as exhibition furniture made of wood and wood-based materials, as well as furniture for self-assembly, such as bathroom or kitchen furniture. The joint provides a solution adapted to the needs of a wide range of furniture boards, especially those with a heterogeneous structure, lower density, and strength. This solution meets all requirements for strength, easy assembly and disassembly, and repeated disassembly, and also contributes to the circular economy strategy by allowing for the manufacture of components from biodegradable materials. The joint is characterized by the fact that it consists of two profiled inserts constituting sockets,in which a symmetrical connector is mounted based on the idea of ​​a multi-stage pin mounted in profiled sockets of profiled inserts of the connected elements, wherein the connector has the form of a cylinder of variable diameter and is made of a material, preferably a biopolymer, most preferably polylactic acid PLA, wherein the connector consists of two cylindrical parts (4), at the ends of which there are mushroom heads (1) with flat side surfaces (5), and in the central part of the connector, between one and the other cylindrical part (4) there is a reinforcement (3), which reinforcement (3) in the central part has a narrowing (2) in the form of a neck with an arcuate outline, where the diameter D1 of the connector in the middle of the narrowing (2) is in the range from 0.7 to 0.9 of the external diameter D2 of the connector in the reinforcement part (3), preferably diameter D1 = 0.8 D2, while the insert is made of a material, preferably a biopolymer, most preferably polylactic acid PLA,where the diameter of the cylindrical hole of the insert is approximately equal to the outer diameter D4 of the connector in the mushroom head part (1), and the internal shape of the insert corresponds to the external shape and dimensions of the connector.,