Abstract: A racket for a racket sport has a frame having a handle and an annular frame head carried on the handle and formed with throughgoing stringing holes each having an outer end and an inner end. Liners define rigid edges around the outer edges of at least selected ones of the holes and strings pass through the holes in the frame, those strings passing through the selected ones of the holes being bent around and in contact with the rigid edges thereof. Respective pliable washers received in the selected ones of the holes offset from the respective ridged edges thereof each have an inner periphery elastically hugging the string traversing the respective hole for damping vibration in the head and an outer periphery fixed relative to the frame head.

Abstract: A strung racket having a racket head in the form of a frame strung with stringing including longitudinal strings passing between a crown and a bottom of the frame and transverse strings extending transversely to the longitudinal strings between sides of the frame, the strings passing through holes in the frame. A device for damping vibration of the stringing generated by impact of the stringing with a ball, is provided and includes at least one pliable membrance fixedly received in at least one of the holes of the bottom of the frame and having an orifice tranversed by the respective string, the edge of the pliable membrane hugging the string traversing the frame hole.

Abstract: A tennis racket provided with a vibration damping device. The racket includes at least one pair of viscoelastic dampers, symmetric relative to a longitudinal axis of the racket and working in opposition. Each damper of the pair consists of a plate of viscoelastic material, whose one face is glued against the racket at a selected spot of the racket, and which includes on its other face a stress plate of rigid material. The selected spot corresponds to the antinode of a specific mode of vibration of the racket.