A golf putter clubhead is designed with a unique structure using a geometry and a balance technology to provide super symmetry, harmony and balance at motion and at rest. The clubhead includes a body with triangular members, a putting face, and optional holes. The triangular form clubhead does not require compensation during the swing thus allowing for greater repetition and simplicity of movement in turn producing performance benefits via consistency. The geometric triangular shape of the clubhead provides an instantly recognizable assistance in proper alignment at the rest position. The body of the clubhead may be hollow and feature inner symmetrical structures to complement the form of the body and to enhance and provide superior weight distribution and balance, thus, providing a performance edge in swing consistency and performance, and allowing for repeatability of the clubhead.

An aerodynamic golf club head having body attributes that impart beneficial aerodynamic properties.

A golf club head including a face element having a face surface, a rear surface, and a reinforcement device with a reinforcement element that extends out from the rear surface of the face element toward a rear end and away from a front end of a golf club head. The reinforcement element includes a looped rib having an outer perimeter surface and an inner perimeter surface. The face surface is nearer to the rear surface proximal to the face center than proximal to the face perimeter. The outer perimeter surface of the reinforcement element is filleted with the rear surface.

A head for a ball striking device includes a bracing member connected to an upper sole surface located on the sole of the body opposite the bottom sole surface. The bracing member includes a first end connected to a first point on the upper sole surface, a second end connected to a second point on the upper sole surface spaced from the first point, and a bridge portion extending between the first and second ends. The bridge portion extends upward from the upper sole surface and is spaced from the upper sole surface. The bridge portion may be formed by one or more trusses, and may define a generally triangular shape in one embodiment. The first and second ends may be connected to the upper sole surface using a variety of techniques, e.g., welding or other integral joining technique, integral forming, adhesive or other bonding material, or other technique.

A method of customizing a golf club head for a user's swing begins by receiving an indication of a characteristic of a user's golf swing. A club face is selected from a plurality of club faces based on the characteristic, and a club body is selected from a plurality of club bodies based on the characteristic. The selected club face and club body are then affixed together to define a golf club head. Each of the plurality of club faces and plurality of club bodies are freely interchangeable.

A method of customizing a golf club head for a user's swing begins by receiving an indication of a characteristic of a user's golf swing. A club face is selected from a plurality of club faces based on the characteristic, and a club body is selected from a plurality of club bodies based on the characteristic. The selected club face and club body are then affixed together to define a golf club head. Each of the plurality of club faces and plurality of club bodies are freely interchangeable.

A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a multi-material striking face portion that can be comprised out of a metallic outer layer combined with a composite mid-section, all forming a face cup construction that can be connected to an aft body. The composite portion of the multi-material face disclosed in accordance with the present invention may generally have an inter laminar shear strength of greater than about 60 MPa, most preferably greater than about 60 MPa and less than about 145 MPa.

A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a multi-material striking face portion that can be comprised out of a metallic outer layer combined with a composite mid-section, all forming a face cup construction that can be connected to an aft body. The composite portion of the multi-material face disclosed in accordance with the present invention may generally have an inter laminar shear strength of greater than about 60 MPa, most preferably greater than about 60 MPa and less than about 145 MPa.

Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion with a toe portion, a heel portion, a top portion, a sole portion, a rear portion, and a front portion having a face portion with a face portion thickness extending between a front surface and a back surface. The body portion may be associated with a body portion volume. The golf club head may also include an interior cavity. The interior cavity may include an elastic polymer material including a radiocontrast material. Other examples and embodiments may be described and claimed.

In a head, a center vertical cross section passing through a face center satisfies the following (a) and (b): (a) when a boundary point between an inner surface of a crown portion and an inner surface of a face portion is defined as a CF inner surface boundary point, a curvature radius of a head inner surface at the CF inner surface boundary point is 6.0 mm or greater and 10.0 mm or less, and the head thickness at the CF inner surface boundary point is 2.0 mm or greater; and
(b) when a spot located 10 mm apart from the CF inner surface boundary point toward the crown side is defined as a spot C10, the head thickness reduces gradually from the CF inner surface boundary point to the spot C10, and the head thickness at the spot C10 is 1.0 mm or less.