US 6,676,536 B1Granted

Bonded joint design for a golf club head

AssigneeCallaway Golf Company

InventorDaniel R. Jacobson

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Abstract

A golf club (40) having a club head (42) with a face component (60) and an aft body (61) is disclosed herein. The face component (60) has a striking plate portion (72) and a return portion (74). The aft-body (61) is composed of a crown portion (62), a sole portion (64) and optionally a ribbon section (90). The face component (60) is composed of a metal material, and the aft-body (61) is preferably composed of a non-metal material such as a composite material or a thermoplastic material. The face component (60) is bonded to the aft-body (61) with a leading edge (180) of an undercut portion (62a and 64a) of the aft-body positioned a distance of 0.100 inch to 0.500 inch from the interior surface (60a) of the face component (60) in order to reduce the stress on the bonded joint of between the face component (60) and the aft-body (61). The club head (42) has a volume in the range of 290 cubic centimeters to 600 cubic centimeters, a weight in the range of 165 grams to 300 grams, and a striking plate portion (72) surface area in the range of 4.00 square inches to 7.50 square inches.

Claims5

Dependent claims

A wood-type golf club head comprising:

a face component having a return portion and a striking plate portion, the return portion extending a distance ranging 0.25 inch to 1.5 inches from a perimeter of the striking plate portion, the face component composed of a metal material;
and
the aft-body having a crown portion and a sole portion, the crown portion having a crown undercut portion with a leading edge and the sole portion having an undercut portion with a leading edge, the leading edge of the crown undercut portion positioned from an interior surface of the striking plate of the face component a distance ranging from 0.100 inch to 0.500 inch, the leading edge of the sole undercut portion positioned from an interior surface of the striking plate of the face component a distance ranging from 0.100 inch to 0.550 inch, the return portion of the face component overlapping a section of the crown undercut portion for attachment of the face component to the aft-body, and the leading edge of the crown undercut portion positioned under the return portion, the return portion of the face component overlapping a section of the sole undercut portion for attachment of the face component to the aft-body, and the leading edge of the sole undercut portion positioned under the return portion.

Dependencies are inferred from the claim text.