A golf club head including a crown defining the top surface of the club head and including a crown portion, a crown recess region formed in the crown portion and defined by a crown ledge and a bonding wall, and a crown insert disposed at least partially within the crown recess region. The size and uniformity of the junction between the crown insert and the bonding wall may be determined by measuring the dimensions of the junction at critical points on the club head.

Embodiments of golf clubs with adjustable loft and lie and methods of manufacturing golf clubs with adjustable loft and lie are generally described herein. Other embodiments may be described and claimed.

Various embodiments of a golf club head comprising a body having a strike face, a heel portion, and a toe portion, a hosel having a body with a first end, extending from the heel portion of the body of the club head, and a second end, configured to receive a shaft, a cavity positioned adjacent to the body of the hosel, and an insert configured to be secured within the cavity are described herein.

An adjustable golf club. The adjustable golf club has a shaft that can selectively secure to a club head. The shaft includes an elongated member which incorporates a first plurality of splines along the elongated member. A club head is removably secured to the shaft by mating the first plurality of splines of the elongated member with a second plurality of splines in an interior cavity of the club head. The angle of the club head can be adjusted through the selective mating of the first plurality of splines of the elongated member to the second plurality of splines of the head. In one embodiment the shaft is further secured to the club head by a quick release system. In another embodiment the length of the shaft can be selectively adjusted.

Disclosed herein are embodiments of adjustable golf clubs comprising features which allow for the adjustment of a lie angle, a loft angle, or both a lie angle and a loft angle of the golf club. In some embodiments, a golf club head includes a body and a hosel, the hosel including an adjustment screw which can be tightened or loosened to adjust the lie and/or loft angles of a golf club head. In some embodiments, certain angles of a golf club head's geometry can be continuously adjustable through a predetermined range of angles.

In general, aspects of this invention relate to golf clubs or golf club components incorporating adjustment members that permit ready adjustability of golf club parameters and/or interchangeability of golf club components to change a golf club configuration, and methods for providing golf clubs. According to aspects of this invention, an adjustment member may be utilized to allow the adjustability of a golf club parameter to change a golf club configuration, while ensuring there is substantially no change to other club or club head variables, parameters or characteristics. According to another aspect of this invention, an adjustment member may be utilized to allow the adjustability of two golf club parameters independently to change a golf club configuration, while ensuring there is substantially no change to other club or club head variables, parameters or characteristics.

Embodiments of golf clubs with adjustable loft and lie and methods of manufacturing golf clubs with adjustable loft and lie are generally described herein. The invention relates in particular to a golf club head with an adjustment portion that allows a user to change the loft and lie. The separate adjustment portions of the club head can couple the upper hosel to the body at a plurality of positions. An insert part of the adjustment portion has an upper section for receiving the upper hosel portion, a middle section, and a lower hosel portion. The sections of the adjustment portion can be coupled together by a fastener so that the sections are rotationally moveable.

Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a body portion of a golf club head may include a cavity having an opening and an internal structure defined by a wall portion and a base portion. A hosel portion may include an insert portion and a neck portion extending therefrom. The hosel portion may be attached to the body portion by an interference fit between the neck portion and the opening of the cavity. The insert portion may be received inside the cavity and may be spaced apart from the internal structure of the cavity. A space between the insert portion and the internal structure of the cavity may be partially or entirely filled with an adhesive to hold the hosel portion in place. Other examples may be described and claimed.

Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a body portion of a golf club head may have a front portion with a face portion for impacting a golf ball, a rear portion, a toe portion, a heel portion, a top portion, and a sole portion. A cavity may be located at the top portion and extends downward into the body portion. A through-hole may be located at the front portion and feeds into the cavity. A hosel portion may have an insert portion with a fastener port. The insert portion may be received inside the cavity such that the fastener port interfaces with the through-hole. A fastener may be received in the through-hole and engaged to the fastener port, thereby securing the hosel portion to the body portion. Other examples may be described and claimed.

A golf club head includes a body defining an interior cavity. The body includes a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion, and a skirt positioned around a periphery between the sole and crown. The body has a forward portion and a rearward portion. The club head includes a face positioned at the forward portion of the body. In some embodiments, the crown includes a lattice-like structure having thin regions surrounded by a web of relatively thicker regions. In some embodiments, the club head includes one or more stiffening tubes attached between the sole and the crown to improve the acoustic performance of the golf club head.