Hook and cord connection
OwnerManfred Brokmann, Kurt Sanders +2inventors
InventorsManfred Brokmann, Kurt Sanders, Dieter Sanders, Hermann Westhoff
Life of this patent
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Abstract
A connection between a metal wire hook and a cord of synthetic fiber material particularly suitable for connecting nets of crossing cords into frames for chairs, sofas, beds and similar furniture. The metal wire has a bent portion with a free end. The bent portion of the metal wire spans an angle in excess of 180.degree. and has a pair of shanks which define a clearance space therebetween. The cord extends through this clearance space and the portion of the cord in the clearance space is squeezed and has therefore a reduced cross-section. The hooked portion of the metal wire and the squeezed portion of the cord are preferably cast into a sheathing of thermoplastic material.
Claims1
A connection between a metal wire hook and a cord of synthetic fiber material, comprising
- a metal wire having a plastically deformed bent U-shaped portion with a free end, said bent portion spanning an angle exceeding 180.degree. and having a pair of converging shanks which define a clearance space therebetween;
- a cord having an unsqueezed cross-sectional area, said cord extending through said clearance space with its free end folded over, the portion of said cord being squeezed so that its cross-sectional area is reduced;
- said bent portion of said metal wire is U-shaped and said pair of shanks converge, the maximum width of said clearance space in the bent portion being substantially less than the diameter of said unsqueezed cross-sectional area of said cord;
- at least said bent portion of said metal wire and said squeezed portion and free end of said cord are cast into a sheathing of thermoplastic material and impregnated thereby.
Dependencies are inferred from the claim text.