US 4,063,730 A · Tennis racquet swing training device

Abstract

A tennis swing practice device includes a cylindrical guide receptacle of somewhat larger inside diameter than the diameter of a tennis ball medially releasably bolted to the head of a tennis racket and having a longitudinally forwardly facing end opening. Passage restrictions are located in the receptacle proximate the end opening so as to necessitate a minimum longitudinal force on a tennis ball in the receptacle for the tennis ball to be ejected from the receptacle attendant to the swinging of the racket. The restriction may be the head of a bolt securing the receptacle to the racket head or opposite forwardly converging shoulders located at the receptacle opening. The longitudinal axis of the receptacle is parallel to the racket striking face and may be at an angle of between 0.degree. and 60.degree. to the racket longitudinal axis.

Claims5

Dependent claims

A tennis swing practice device comprising a conventional tennis ball, a lawn tennis racket including longitudinally spaced proximal handle portion and distal head portion, said head portion including a peripheral frame and interwoven strings extending across said frame to define a striking web, and guide means separably secured to said head portion and including a longitudinally extending cylindrical receptacle releasably housing said tennis ball and having an open distal end and an inside diameter greater than the diameter of said tennis ball and means forward of said tennis ball in the direction of said distal end restricting the passageway along said receptacle to a dimension slightly less than the diameter of said tennis ball to necessitate a predetermined longitudinal pressure on said tennis ball to automatically traverse said restricting means while swinging of said tennis racquet.

Dependencies are inferred from the claim text.

Tennis racquet swing training device

Life of this patent

Tennis racquet swing training device

Life of this patent

Abstract

Claims5