Patent ID: 7922599
Filing Date: 2011-04-12
Classification: A63B

Abstract:
1. A golf club comprising a shaft, a head, an inner member and a screw member, wherein the inner member has a shaft channel provided so as to open on the top end side, and an engaging hole extending along an axis that is orthogonal to the axis of the shaft channel; the head has a hosel member having a hosel hole, and a separate head hole that extends from the head external surface inward; at least a part of the inner member is inserted into the hosel hole; the shaft and the shaft channel are fitted together by adhesion and/or fitting; a continuous hole is formed by alignment of the engaging hole continuously with the head hole, and the screw member is inserted into the engaging hole and the head hole through the continuous hole; and the screw member is secured by a threaded arrangement with the engaging hole and/or the head hole, wherein the hosel member has a chipped portion including at least one notch that (1) extends entirely through a radial thickness of an upper end of the hosel member and (2) opens through a top end face of the hosel member, the inner member has at least one engaging protruding part that engages and mates with the at least one notch of the chipped portion, and engagement and mating of the at least one notch of the chipped portion with the at least one engaging protruding part effects (1) circumferential positioning and (2) the extent of insertion of the inner member with respect to the hosel member such that the engaging hole is continuous with the head hole, whereby the shaft and the head can be readily attached and detached.