Training golf clubs
OwnerGeorge A. J. Potterinventor
Life of this patent
Estimating the term…
Abstract
A training golf club with a spring-loaded hinge between two club half-shafts which "breaks" if the club swing is skewed or jerky is disclosed. First and second main hinge components lie side by side with a pivot shaft passing through them and with offset shanks for attachment to the club half-shafts. Springs and balls are located in bores in the first main hinge component, the balls engaging in depressions in a circular track on the second main hinge component when the two shanks are aligned. The other ends of the springs bear, via balls, against an adjustment ring. On rotation of this ring, the balls engage in one of a plurality of sets of depressions of different depths in the ring, so adjusting the "break" force of the hinge.
Claims16
A spring-loaded hinge mechanism interposed in a training golf club between a first shaft formed with a hand grip and a second shaft formed with a club head, comprising a first main hinge component and a second main hinge component pivotally secured together for relative pivotal movement about a pivot axis, said first and second main hinge components respectively including first shank means and second shank means, each for securing the respective first and second hinge component to a respective one of said first and second shafts;
- each first and second shank means extending parallel to said pivot axis, said first main hinge component including spring-loaded means, movable parallel to the pivot axis, for exerting a spring force between said first and second hinge components;
- depression means, mounted adjacent said spring-loaded means, for engagement with said spring-loaded means when said first and second shank means are parallel with each other;
- and said second hinge component including circular track means for guiding relative rotation of said first and second hinge components about the pivot axis under the action of said spring force.
A training golf club comprising a first shaft formed with a hand grip and a second shaft formed with a golf club, and a spring-loaded hinge mechanism connecting said first and second shafts together, said spring-loaded hinge mechanism comprising a first main hinge component and a second main hinge component pivotally secured together for relative pivotal movement about a pivot axis, said first and second main hinge components respectively including first shank means and second shank means, each for securing the respective first and second hinge component to a respective one of said first and second shafts;
- each first and second shank means extending parallel to said pivot axis, said first main hinge component including spring-loaded means, movable parallel to the pivot axis, for exerting a spring force between said first and second hinge components;
- depression means, mounted adjacent said spring-loaded means, for engagement with said spring-loaded means when said first and second shank means are parallel with each other;
- and said second component including circular track means for guiding relative rotation of said first and second hinge components about the pivot axis under the action of said spring force.
Dependencies are inferred from the claim text.