Twist and compression joint, especially intended for furniture
Title of the offer
Twist and compression joint, especially intended for furniture
Offer description
The subject matter of this Invitation is an invention in the form of a compression joint for furniture which generates mounting forces that hold the respective elements together. This allows the user to make separable connections that are invisible from the outside and do not require any tools. The joint comes with two identical couplings either pressed or glued into the sockets of elements to be connected. In the gluing option, the coupling’s outer walls are smooth. In the version which does not require gluing, the coupling’s outer walls have multiple parallel grooves with attachments which are arranged so as to prevent an inserted coupling from being removed. The compression joint’s vertical section is similar to an H-beam. The compression joint is a cylinder equipped with a pair of pliers at each base which make a 90-degree angle with the joint’s axis. The joint and the couplings are made of the same hard material (polyamide, carbon fiber or metal, by default). The inner walls of the couplings have profiles (grooves) which make the joint twist and extend when mounted. This is possible because the joint’s pliers are pressed against the surface of the coupling’s inner profile. Each coupling has two profiles which are symmetrical with respect to the central point of their bases. When paired together, the couplings are arranged symmetrically with respect to the point located at the base, at the entrance to the coupling. No closer than at 2/3 of the coupling’s depth, its inner profile has a wedge which is the extension limit for the joint. This allows the joint to be fastened and to return the energy absorbed when twisting and extending.
Keywords
Twist and compression joint
Scientific field
Engineering and technical sciences, Paper and wood
Industry sector
Furniture
Type of technology
Prototype, Technology
Technology Visualization
-
Authors/inventors
professor Jerzy Smardzewski Ph.D.
Rights holder
Poznan University of Life Sciences
Poznan University of Life Sciences
Intellectual property rights
National patent application
Application number
P.423338
Patent number
-
TRL level
5
Form of transfer
Exclusive license, Non-exclusive license, Rights sale
