Quadratic bar for construction of support frames - has longitudinal slots for the location of cladding material

摘要

A self supporting quadratic clamp bar (1) for the construction of mounting frames has longitudinal dove tail slots (2) along the centre line of each of its sides. To fix cloth, plastic foil or similar material (4) to a frame built from these bars, a round rod (3) is inserted in the slots. Since the foil (4) is wrapped around the rod (3) prior to its installation, it is clamped inside the slotted bar. The arrangement is esp. for providing coverings for furniture etc., using paper, foil or other thin sheet material. The frames are of a hard rubber.