Adjustable golf club shaft and hosel assembly
AssigneeCallaway Golf Company
InventorsJames A. Seluga, Homer E. Aguinaldo
Life of this patent
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Abstract
An adjustable golf club including a shaft and hosel assembly allows for dependent and independent adjustment of a golf club's face angle, loft angle, and lie angle. The adjustable shaft and hosel assembly comprises a shaft sleeve, a hosel portion, and at least one tubular adjustment piece having non-parallel upper and lower surfaces, wherein the shaft sleeve, hosel, and tubular adjustment piece each include markings that combine to form a code that correlates to a unique angular setting and is readable by an electronic device. The adjustable golf club may also comprise an audible feedback system including an indexing ring that interacts with indexing features in the tubular adjustment piece.
Claims18
An adjustable golf club comprising:
- a shaft sleeve comprising a shaft-receiving bore and an external surface having a first reference marking;
- a first tubular adjustment piece comprising an external surface having a first positional marking extending at least part way around the circumference of the first tubular adjustment piece, and non-parallel upper and lower surfaces, the first tubular adjustment piece encircling at least a portion of the shaft sleeve;
- a second tubular adjustment piece comprising an external surface having a second positional marking extending at least part way around the circumference of the second tubular adjustment piece, and non-parallel upper and lower surfaces, the second tubular adjustment piece encircling at least a portion of the shaft sleeve;
- and
- a golf club head comprising a hosel, the hosel comprising a hosel bore and an external surface having a second reference marking, at least part of the hosel bore having a diameter sized to receive at least a part of the shaft sleeve,
- wherein when at least part of the shaft sleeve is disposed within the hosel bore, rotating at least one of the first and second tubular adjustment pieces around the shaft sleeve changes an angle of the shaft sleeve with respect to the hosel, creating a plurality of different angular settings,
- wherein the first reference marking and the second reference marking create a readable reference frame, and
- wherein each angular setting correlates to a unique readable code formed by the first reference marking, first positional marking, second positional marking, and second reference marking when viewed within the reference frame.
An adjustable golf club comprising:
- a shaft sleeve comprising a shaft-receiving bore;
- a first tubular adjustment piece comprising non-parallel upper and lower surfaces, the first tubular adjustment piece encircling at least a portion of the shaft sleeve;
- a second tubular adjustment piece comprising non-parallel upper and lower surfaces, the second tubular adjustment piece encircling at least a portion of the shaft sleeve;
- a first indexing ring comprising a ring portion and a tang portion, the ring portion encircling at least a portion of the shaft sleeve and the tang portion extending away from the ring portion;
- and
- a golf club head comprising a hosel, the hosel comprising a hosel bore, at least part of the hosel bore having a diameter sized to receive at least a part of the shaft sleeve,
- wherein at least one of the first and second tubular adjustment pieces comprises an interior surface with an indexing feature extending away from the interior surface,
- wherein the first indexing ring is disposed proximate the tubular adjustment piece comprising the indexing feature such that the tang portion extends towards the indexing feature,
- wherein when at least part of the shaft sleeve is disposed within the hosel bore, rotating at least one of the first and second tubular adjustment pieces around the shaft sleeve changes the angle of the shaft sleeve with respect to the golf club head, and
- wherein rotating the tubular adjustment piece comprising the indexing feature causes the tang portion to make contact with the indexing feature and create a sound audible to the human ear as it moves across the indexing feature.
Dependencies are inferred from the claim text.