Apparatus for the application of an adhesive tape about the rim of a flat shaped part; in particular a shaped sheet metal part

An apparatus for the application of an adhesive tape or film, in longitudinal direction, about the rim of a flat-shaped part of the shaped metal sheet part type, said tape to embrace said rim in a configuration of substantially U-shaped cross section, said apparatus comprising tape-guiding means comprising conveying rollers and means for pre-folding the adhesive tape, a pair of application rollers having application roller shafts adapted for receiving in a tape-folding range pre-folded tape from said pre-folding means and for pressing said pre-folded tape simultaneously on to the two sides adjacent said rim of said flat-shaped part when the latter part is being introduced into said tape-folding range, and application roller-moving means adapted for resilient pivoting of each of said two application rollers, away from a neutral position, about an axis extending parallel with said roller shafts, the pivoting movement of said pair of application rollers taking place substantially in a plane being defined by said roller shafts when in neutral position;

• and comprising two carrier levers each supporting one of said application rollers, roller swivelling means for each of said carrier levers being adapted for imparting the pivoting movement to the application roller supported thereby about the respective roller pivot axis, first biasing means for biasing the pivoting movement of at least one of said application rollers in a direction toward the other roller, and coupling means for resiliently coupling said two carrier levers with one another, whereby said two application rollers are urged resiliently against each other and always move jointly.