A face insert for a golf club head, preferably a putter head, is disclosed herein. The face insert comprises a pair of stacked plates, each with a plurality of hinge features. The hinge features of the lower plate extend through openings in the upper plate so that the plates are locked together, and the edge surfaces of the hinge features combine to create a striking surface that increases topspin of a golf ball.

A method of forming a golf club head that is capable improving on the inertia properties of a golf club head all while also improving the Center of Gravity (CG) location is disclosed herein. More specifically, the method forms a golf club head that achieves a relative low Moment of Inertia (MOI) about the Z-axis (MOI-Z) as well as a relatively low MOI about the Shaft-axis (MOI-SA).

A method of manufacturing a golf club head with a plurality of stiffening members proximate the face, and particularly solid rods or a plate with one or more cutouts, is disclosed herein. The method includes the steps of preparing a wax of a golf club head body having at least one through-hole, a hollow interior, and at least one receiving pocket, preparing waxes of one or more stiffening members, inserting the wax of the stiffening members into the through-hole and seating its opposite end in the receiving pocket, bonding each of the stiffening members to the body with an adhesive material to form a combined wax mold, and casting a golf club head from the combined wax mold.

Embodiments of an iron type golf club head with a flex structure, a face reinforcing structure, and a variable face thickness to increase face element bending while improving club head durability are described herein. The club head comprises a face element for striking a golf ball. The face element is formed integrally with the flex structure. The flex structure comprises a curved profile (e.g. S-shape or sinusoidal) that functions like a spring to support the face element during golf ball impacts. The face reinforcing structure comprises a looped rib that provides support around a center of the face element. The variable face thickness includes thickened and thinned regions to provide further face element bending or support. The combination of the flex structure, the face reinforcing structure, and the variable face thickness provides increased face element bending while improving club head durability.

A golf club head that is capable improving on the inertia properties of a golf club head all while also improving the Center of Gravity (CG) location is disclosed herein. More specifically, the golf club head in accordance with the present invention achieves a relative low Moment of Inertia (MOI) about the Z-axis (MOI-Z) as well as a relatively low MOI about the Shaft-axis (MOI-SA), all combined with a high MOI about the X and Y-axis (MOI-X and MOI-Y).

A grip device for a racket includes at least two externally protruding bodies, a primary body and a secondary body, extending from the outer surface of the racket handle and being located circumferentially distanced from each other. The racket handle has a central longitudinal axis A, wherein the primary body is of a quadrilateral or triangular construction.

The invention described herein is an iron-type golf club head having an optimized mass distribution while also having the aesthetics of a full muscle-back iron. The iron-type golf club head comprises a main club head body, a lightweight, back-cavity insert, and a void within the lightweight, back-cavity insert configured to receive a CTP weight capable of adjusting mass characteristics of the iron-type golf club head.

A weighted golf club is disclosed herein. More specifically, a golf club head includes a chassis with a heel opening and a toe opening defined therein. A heel weight member is disposed within the heel opening and a toe weight member is disposed within the toe opening. The heel weight member and the toe weight member are securely mechanically attached to the chassis by a fastener.

A hollow golf club head includes a metallic front body coupled with a composite rear body. The front body includes a strike face and a surrounding frame that extends rearward from a perimeter of the strikeface. The rear body includes a crown member coupled with a sole member. The sole member can have a structural layer formed from a filled thermoplastic material. The crown member can have structural layer and/or a resilient layer. The structural and resilient layers can be formed from fiber-reinforced thermoplastic composite material. The sole member has an opening through which a metallic weight pad at least partially extends. The weight pad is bonded to the structural layer and includes an aperture for attaching a metallic weight.

A putter head includes a forwardly facing putting face extending in a longitudinal direction between a heel end and a toe end, and the putter head includes a front part and a rear part. The front part includes: a forward-facing surface including the putting face and a slot provided in an upwardly facing surface of the front part. The slot is configured to take up a hosel for connecting a shaft to the putter head and to arrange the hosel at different longitudinal positions between the heel end and toe end of the putter head. The slot includes a bottom surface, and a rearward-facing surface. The rear part includes an upward-facing surface having connecting means for connecting one or more weights to the rear part of the putter head at different longitudinal positions between the heel end and toe end of the putter head.