US2013143689A1PendingUtilityA1
Golf club shaft and golf club
Est. expiryDec 2, 2031(~5.3 yrs left)· nominal 20-yr term from priority
Inventors:Yoshifumi Nakajima
A63B 60/00A63B 2209/023A63B 53/10
46
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Claims
Abstract
According to an aspect of this invention, there is provided a golf club shaft including a prepreg containing a carbon fiber, wherein the prepreg is winded and cured, and a winding thickness of the prepreg on a striking face is larger than a winding thickness of the prepreg on any other portion.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A golf club shaft comprising
a prepreg containing a carbon fiber, wherein the prepreg is winded and cured, and a winding thickness of the prepreg on a striking face is larger than a winding thickness of the prepreg on any other portion.
2 . The golf club shaft according to claim 1 , wherein:
the winding thickness of the prepreg on the striking face is largest; the winding thickness of the prepreg on a head end is second largest; and the winding thickness of the prepreg in an intermediate portion between the striking face and the head end is smallest.
3 . The golf club shaft according to claim 2 , wherein
the thickness of a rearmost end on the striking face is larger than an average thickness of the intermediate portion by 0.1 mm to 0.4 mm.
4 . The golf club shaft according to claim 1 , wherein
the striking face is provided in a range of 15% to 45% of an entire length of the shaft from an end of the striking face.
5 . The golf club shaft according to claim 1 , wherein:
the golf club shaft is a golf club shaft for a wood club; and a position of center of gravity is present in a range of 52% to 57% of an entire length of the shaft from an end of the head end.
6 . A golf club comprising:
a golf club shaft comprising a prepreg containing a carbon fiber; and a club head connected with the golf club, wherein the prepreg is winded and cured, and a winding thickness of the prepreg on a striking face is larger than a winding thickness of the prepreg on any other portion.Join the waitlist — get patent alerts
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