A golf club head according to one or more aspects of the present invention may include a main cavity having at least one auxiliary cavity and a base surface. An insert may be associated with the base surface and may comprise at least two contact elements, with a bridge member disposed therebetween. Different contact elements of the insert may be disposed in separate respective auxiliary cavities, such that each contact element may be associated with the base surface. The bridge member of the insert may be dissociated from the base surface. Moreover, a surface coating may be selectively applied to the head to permit a durable adhesive bond between the insert and the base surface.
1. A golf club head comprising:
a base surface;
a perimeter weighting element surrounding the base surface and comprising a top-line portion, a sole portion, a heel portion, and a toe portion;
a main cavity delimited by the base surface and the perimeter weighting element;
a plurality of perimeter walls on the base surface, each of the perimeter walls directly associated with at least one of the top-line portion and the sole portion, each of the perimeter walls directly associated with at least one of the toe portion and the heel portion;
a plurality of auxiliary cavities located in the main cavity and each delimited by the base surface, the perimeter weighting element, and one of the plurality of perimeter walls; and
an insert comprising at least two contact elements and a bridge member disposed therebetween, at least a portion of each of the at least two contact elements directly associated with a portion of the base surface delimiting one of the plurality of auxiliary cavities, the bridge member being dissociated from the base surface, the contact elements located in separate auxiliary cavities.
2. The golf club head of claim 1 , wherein the insert comprises a durometer hardness between about 60 Shore A and about 80 Shore A.
3. The golf club head of claim 1 , wherein the insert comprises a specific gravity between about 0.8 and about 2.0.
4. The golf club head of claim 1 , wherein the insert further comprises a stiffening member having a higher flexural modulus than the insert.
5. The golf club head of claim 4 , wherein the stiffening member is coupled to at least a portion of the bridge member.
6. The golf club head of claim 1 , wherein the insert further comprises a plurality of ridges on at least one of the at least two contact elements.
7. The golf club head of claim 1 , wherein the insert is densified with a second material.