Retractable boxing ring for use in e.g. club, has four end maintenance bars and pins crossing upper, lower and central maintenance bars at each connection to secure metallic frame to form retractable boxing ring by folding

摘要

The ring has four corner posts (1-4) on each of which three soldered rings (13) are arranged. Fixed lateral metallic structures (5, 6) have two upper bars, two lower bars and two connecting frames. Two foldable metallic structures (7, 8) have two soldered frames, where the structures are connected to hinges at centre (9) and ends (10), respectively. Two pairs of central maintenance bars (11) block the structures after folding. Four end maintenance bars (12) and pins cross the bars at each connection to secure metallic frame to form a retractable boxing ring by folding.