Patent ID: 8858364
Filing Date: 2014-10-14
Classification: A63B,Y10T

Abstract:
1. A clubhead for a golf club, comprising: a front piece including an iron-type face, a front heel portion, a front sole portion, a front toe portion, a front top-line portion, a hosel, and a respective interface surface facing substantially rearwardly of the face; a rear piece including a rear heel portion, a rear sole portion, a rear toe portion, a rear top-line portion, and a respective interface surface facing the interface surface of the front piece and, with the interface surface of the front piece, forming a contact interface of the front and rear pieces, the contact interface having a periphery, an open middle region defined by an inside edge, and a width between the inside edge and the periphery, the width being variable with position around the periphery so as to be widest in regions of the heel portions and narrowest in regions of the top-line portions, and intermediately wide in other regions of the contact interface, the rear piece including a weighting element; and a continuous laser weld extending circumferentially around the periphery of the contact interface and attaching the front and rear pieces together at the contact interface, the weld including a fusion zone that, at substantially all locations around the contact interface, extends depthwise from the periphery into the contact interface in a direction substantially perpendicular to a normal to the face, the fusion zone having a depth that varies according to corresponding variations in the width of the contact interface around the periphery; wherein a combined thickness of the front and rear top-line portions is no greater than 7 mm, wherein a damping badge is connected to a rear surface of the front piece, and wherein the front piece includes at least one projection aligning with an inside edge of the interface surface of the rear piece.