US 9,808,679 B1
Golf club shaft connection assembly
James A. Seluga, Carlsbad, CA (US)
Assigned to Callaway Golf Company, Carlsbad, CA (US)
Filed by CALLAWAY GOLF COMPANY, Carlsbad, CA (US)
Filed on Mar. 2, 2016, as Appl. No. 15/59,167.
Int. Cl. A63B 53/14 (2015.01); A63B 53/02 (2015.01); A63B 60/28 (2015.01); A63B 60/22 (2015.01)
CPC A63B 53/02 (2013.01) [A63B 53/14 (2013.01); A63B 60/22 (2015.10); A63B 60/28 (2015.10)] 20 Claims
OG exemplary drawing
 
1. A golf club shaft connection assembly comprising:
a golf club head;
a first shaft section;
a second shaft section;
a male adaptor comprising a first body portion, a first protrusion, and a first ledge portion between the first body portion and the first protrusion;
a female adaptor comprising a second body portion, a second protrusion, and a second ledge portion between the second body portion and the second protrusion;
a hollow retainer comprising a first upper end, a first lower end, and an internal flange disposed proximate the first upper end;
a spring comprising a second upper end and a second lower end; and
a plurality of balls,
wherein each of the first body portion and the second body portion is affixed to one of the first shaft section and the second shaft section,
wherein the golf club head is affixed to one of the first shaft section and the second shaft section,
wherein the first protrusion comprises a stem portion, a keyed portion, and a first groove between the stem portion and the keyed portion,
wherein the second protrusion comprises a base portion and a hollow extension,
wherein the hollow extension comprises an external surface, a second upper end, a second lower end proximate the base portion, a keyed interior, and a plurality of circular through-bores disposed proximate the second upper end,
wherein the hollow retainer is disposed around the hollow extension such that the internal flange is located proximate the second upper end,
wherein the internal flange comprises an upper surface and a lower surface,
wherein the spring is coiled around the hollow extension such that the second lower end abuts the base portion and the second upper end abuts the lower surface of the internal flange,
wherein each of the plurality of balls is partially disposed within one of the plurality of circular through-bores above the upper surface of the internal flange,
wherein the keyed portion is sized to fit within the keyed interior, and
wherein moving the retainer towards the first ledge portion removably fixes the male adaptor to the female adaptor.