Patent ID: 8348779

Claim:
A training device for golf swing comprising: a first body section having a rod shape; a grip section installed at one end part of the first body section; a rod section screw-joined at its one end part to the other end part of the first body section and having a larger outer diameter than that of the first body section and an inner space; a second body section wherein a part thereof is inserted into an insertion hole formed at the other end part of the rod section and a protrusion having a larger outer diameter than diameter of the insertion hole is formed at one end part of the inserted part; a head section installed at the other end part of the second body section; and an elastic member arranged around the second body section in such a way that both end parts of the member contact with the protrusion and inner surface of the other end part of the rod section and generating elastic resistance according to swing speed in swing motion such that a part of the second body section can be moved within the rod section by centrifugal force.