A golf club head with improved striking face performance is disclosed herein. More specifically, a golf club head includes a striking face with a thickened central region surrounded by transition region that reduces radially in thickness as it extends away from the central region is disclosed. The striking face geometry results in more uniform characteristic time measurements across a large percentage thereof.

A putter-chipper golf club may include: a body 110 including a coupling groove portion 110a having a through-hole formed therein; a variable face 120 disposed on one side of the body 110 and configured to function as a putter face or a chipper face; a spring 130 disposed on the circumference of a part of the coupling protrusion portion 120a; and a face cap 150 disposed adjacent to the spring 130. When the coupling groove portion 110a of the body 110 and the coupling protrusion portion 120a of the variable face 120 are disengaged from each other by pulling the variable face 120 from the body 110 toward one side, the golf club may be switched to a putter or a chipper through rotation of the variable face 120.

A golf club head with plate-like, heel and toe side internal stiffeners is disclosed herein. Each stiffener has a planar portion extending approximately parallel with a portion of the striking face, and is entirely disposed within an interior cavity of the golf club head. The heel side stiffener is connected to top, sole, and heel walls of the club head, with a toe-side edge unconnected to any other portion of the head, and the toe side stiffener is connected to the top, sole, and toe walls of the club head, with a heel-side edge unconnected to any other portion of the head. The toe and heel side edges may have large concavities that distribute mass away from the geometric face center and toward the heel and toe sides of the golf club head.

A golf club head comprises a face portion having a face’s front surface for hitting a ball, a face’s rear surface and a face’s center. The face’s back surface is provided with a central thin part, a sole side thin part extending in the toe-heel direction on the sole side than the central thin part, and a sole side rib extending in the toe-heel direction located between the central thin part and the sole side thin part. The width W1 of the sole side thin part is larger than the width W2 of the sole side rib, each measured in a vertical cross-sectional view of the head taken perpendicularly to both the face’s front surface and the horizontal surface, passing through the face’s center.

A golf club head is provided having a club body having a front portion, a rear portion, a toe portion, and a heel portion. The club head also having a central portion connected with the front portion. A frame is connected with the central portion configured to provide a lightweight crown portion being located above an offset plane.

A golf club head includes a metallic front body coupled with a rear body to define a substantially hollow structure. The metallic front body includes a strike face and a surrounding frame that extends rearward from a perimeter of the strike face. The rear body includes a crown member and a sole member coupled to the crown member. The sole member comprises a structural layer formed from a filled thermoplastic material and a fiber reinforced composite resilient layer bonded to an external surface of the structural layer. The structural layer includes a plurality of apertures extending through a thickness of the structural layer, and the resilient layer extends across each of the plurality of apertures. The structural layer and the resilient layer each include a common thermoplastic resin component, and are directly bonded to each other without an intermediate adhesive.

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 back 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. Other examples and embodiments may be described and claimed.

A golf club head is provided having a club body having a front portion, a rear portion, a toe portion, and a heel portion. The club head also having a central portion connected with the front portion. A frame is connected with the central portion configured to provide a lightweight crown portion being located above an offset plane.

A golf club head comprising a body, an elevated weight bar, and at least one stiffening member is disclosed herein. The elevated weight bar is disposed within a hollow cavity portion of the body and bridges at least a portion of a bottom section of the body, and the at least one stiffening member is also disposed within the hollow cavity portion, extending from a top line section to bottom section of the body and passing through the elevated weight bar without making contact with the elevated weight bar. The elevated weight bar, which is preferably composed of a higher density material than that of the body, may be formed separately from the rest of the body and then affixed to the body by welding or a mechanical fastener.

Some embodiments include club heads having reinforced club head faces. In one example, the club head comprises a variable face thickness with thickened and thinned regions. The face includes a thinned perimeter region positioned near a perimeter of the face, and a thickened central region positioned over a geometric center of the face. The club head further comprises a 360 undercut that extends along the entire perimeter of the face. The combination of the thinned perimeter region, thickened central region, and 360 undercut reinforces the club head while permitting the face to bend. Other embodiments of related club heads and methods are also disclosed.