Golf club with adjustable weight assembly
First Claim
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1. A golf club head comprising:
- a club head body comprising a front portion, a rear portion, a ball-striking face at the front portion of the club head body, a heel, a toe, a crown, and a sole;
a track formed along a length of the sole of the club head body, the track has at least a first end and an opposing second end adjacent to the front and rear portions of the club head body, respectively, wherein the track comprises a channel extending from an exterior surface of the sole towards an internal cavity of the club head body, the channel lies along a plane that extends generally from the sole to the crown of the club head body, the channel has a groove formed therein extending along length of the channel, wherein the groove lies along a plane that extends generally from the heel to the toe of the club head body;
a weight assembly coupled to a portion of the track by way of an externally threaded headed fastener extending through a portion of the weight assembly, into the channel, and engaging an internally threaded retaining member retained within the groove of the channel, wherein the weight assembly is adapted to move along a length of the track between at least a first position and a second position; and
a spring element coupled to the fastener and positioned between the weight assembly and the retaining member, the spring element adapted to apply a biasing force against at least the weight assembly.
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Abstract
The invention generally relates to golf clubs with adjustable mass properties. In certain aspects, the invention provides methods and mechanisms for adjusting a club head center of gravity and/or moment of inertia by way of an adjustable weight assembly positionable along the sole of the club head body. When in a first position, the weight assembly provides a lower center of gravity so as to increase launch angle and reduce spin rate, resulting in greater overall distance of ball flight. When in a second position, the weight assembly provides a greater mass moment of inertia, which effectively enlarges the sweet spot and produces a more forgiving club for off-center hits.
168 Citations
11 Claims
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1. A golf club head comprising:
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a club head body comprising a front portion, a rear portion, a ball-striking face at the front portion of the club head body, a heel, a toe, a crown, and a sole; a track formed along a length of the sole of the club head body, the track has at least a first end and an opposing second end adjacent to the front and rear portions of the club head body, respectively, wherein the track comprises a channel extending from an exterior surface of the sole towards an internal cavity of the club head body, the channel lies along a plane that extends generally from the sole to the crown of the club head body, the channel has a groove formed therein extending along length of the channel, wherein the groove lies along a plane that extends generally from the heel to the toe of the club head body; a weight assembly coupled to a portion of the track by way of an externally threaded headed fastener extending through a portion of the weight assembly, into the channel, and engaging an internally threaded retaining member retained within the groove of the channel, wherein the weight assembly is adapted to move along a length of the track between at least a first position and a second position; and a spring element coupled to the fastener and positioned between the weight assembly and the retaining member, the spring element adapted to apply a biasing force against at least the weight assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification