Crescent shaped bars joining panel type elements - have offset arcs bounding curved profile pieces, and end claws on bolts

摘要

Profile rails for attachment to abutting edges, with an arc-sectioned profile piece and end bolts, are used in joining wall and/or ceiling panels or similar flat elements at varying angles. The profile pieces are bounded by two mutually offset arcs, of equal radius. The bolts (11) are in non-compressible rigid form, and have peripheral claws (14) at one end, overlapping adjacent end faces of arched profile pieces plugged together. Profile pieces cross-section is pref. a complete crescent, thickest at the centre. This permits quick and simple hinge-type connections.