Putter-type golf club head
A putter-type golf club head is disclosed. When oriented in a reference position, the putter-type golf club head comprises a blade member and a central elongate member in communication with, and extending rearwardly from, the blade member. The blade member extends in a heel-to-toe direction and has a striking wall defining a substantially planar striking surface, and an upper surface of the central elongate member comprises at least one generally square-shaped alignment element.
1. A putter-type golf club head that, when oriented in a reference position, comprises:
a striking face;
a rear portion opposite the striking face;
a heel;
a toe;
a sole portion;
a top portion including an alignment feature that comprises a first portion and a second portion, wherein:
a beveled step is located between, and vertically offsets, the first portion and the second portion;
when the putter is viewed from above, the first portion, the second portion, and the beveled step in combination visually depict a square shape;
when the putter is viewed from above, the rear portion of the putter includes an asymmetrical arcuate shape;
a width of the club head in a heel-to-toe direction is between 4.0 and 4.5 in.; and
each side of the square shape is equal to or substantially equal to a diameter of a golf ball in length;
a center of gravity;
a virtual vertical axis passing through the center of gravity and perpendicular to a virtual ground plane; and
a moment of inertia I zz about the virtual vertical axis that is no less than 3500 g*cm 2 .
2. The golf club head of claim 1 , wherein the first portion is oriented forwardly and above the second portion.
3. The golf club head of claim 1 , further comprising a hosel extending forwardly of the striking face.
4. The putter-type golf club head of claim 1 , wherein the club head is face-balanced.
5. The putter-type golf club head of claim 1 , wherein a mass of the club head is between 300 and 400 grams.
6. The putter-type golf club head of claim 1 , wherein the club head is a mallet-type club head.