A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
A47C—CHAIRS; SOFAS; BEDS
A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
A47C23/04—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled
A47C23/05—Frames therefor; Connecting the springs to the frame ; Interconnection of springs, e.g. in spring units
A47C23/0515—Frames therefor; Connecting the springs to the frame ; Interconnection of springs, e.g. in spring units using clamps or similar connecting means
Piece plate ayant la faculte d'etirement elastique dans la direction longitudinale, son procede de fabrication et son application a un collier de serrage.