US2006211511A1PendingUtilityA1

Shaft for use in golf clubs and other shaft-based instruments and method of making the same

52
Individually held — no corporate assignee on recordPriority: Feb 28, 2001Filed: Nov 22, 2005Published: Sep 21, 2006
Est. expiryFeb 28, 2021(expired)· nominal 20-yr term from priority
Inventors:Michael Cheng
A63B 2209/02A63B 53/10A63B 60/08A63B 60/52A63B 60/10A63B 2209/023A63B 60/06A63B 53/12
52
PatentIndex Score
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Cited by
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Claims

Abstract

A shaft for use in a golf-club or other shaft-based instrument, including a base member and a metal layer, and a method of making the same.

Claims

exact text as granted — not AI-modified
1 - 43 . (canceled)  
   
   
       44 . A golf club shaft for use with a golf club head including a hosel having a predetermined length, the golf club shaft comprising: 
 a polymer base member defining a tip end, a tip section adapted to be inserted into the hosel, a main body section, a grip section, and a butt end; and    a metal layer extending around and secured to at least a portion of the base member and defining distal and proximal ends and first and second longitudinally extending side edges that abut one another.    
   
   
       45 . A golf club shaft as claimed in  claim 44 , wherein the base member comprises a plurality of resin layers.  
   
   
       46 . A golf club shaft as claimed in  claim 45 , wherein the plurality of resin layers comprises a plurality of fiber reinforced resin layers.  
   
   
       47 . A golf club shaft as claimed in  claim 46 , wherein the base member defines a longitudinal axis and the plurality of fiber reinforced resin layers include a group of layers with fibers angled with respect to the longitudinal axis of the shaft and a group of layers with fibers substantially parallel to the longitudinal axis.  
   
   
       48 . A golf club shaft as claimed in  claim 44 , wherein the metal layer is located such that the distal end of the metal layer is less than the predetermined length from the tip end and the proximal end of the metal layer is greater than the predetermined length from the tip end.  
   
   
       49 . A golf club shaft as claimed in  claim 48 , wherein the distal end of the metal layer is substantially aligned with the tip end of the base member.  
   
   
       50 . A golf club shaft as claimed in  claim 48 , wherein the metal layer covers at least a portion of the tip section and at least a portion of the main body section.  
   
   
       51 . A golf club shaft as claimed in  claim 48 , wherein the metal layer covers the entire tip section and at least a portion of the main body section.  
   
   
       52 . A golf club shaft as claimed in  claim 44 , wherein the metal layer is secured to at least a portion of the tip section.  
   
   
       53 . A golf club shaft as claimed in  claim 52 , wherein the metal layer covers the entire tip section.  
   
   
       54 . A golf club shaft as claimed in  claim 44 , wherein the tip section defines a first shape and the main body section defines a second shape different than the first shape.  
   
   
       55 . A golf club shaft as claimed in  claim 54 , wherein the tip section defines a cylindrical shape and the main body section defines a frusto-conical shape.  
   
   
       56 . A golf club shaft as claimed in  claim 44 , further comprising: 
 a bonding layer between the base member and the metal layer.    
   
   
       57 . A golf club shaft as claimed in  claim 56 , further comprising: 
 an outer layer, including a resin and a cloth within the resin, over the metal layer.    
   
   
       58 . A golf club shaft as claimed in  claim 44 , further comprising: 
 an outer layer, including a resin and a cloth within the resin, over the metal layer.    
   
   
       59 . A golf club shaft as claimed in  claim 44 , wherein the longitudinally extending side edges are linear from the proximal end of the metal layer to the distal end of the metal layer.  
   
   
       60 . A golf club shaft, comprising: 
 a polymer base member defining a circumference, a tip section, a main body section, and a grip section;    a bent metal sheet on at least a portion of the base member that extends at least once around the circumference of the portion of the base member; and    an outer layer, formed from a fiber reinforced resin or a resin with a cloth within the resin, covering the bent metal sheet and extending beyond the bent metal sheet.    
   
   
       61 . A golf club shaft as claimed in  claim 60 , wherein the tip section defines a first shape and the main body section defines a second shape different than the first shape.  
   
   
       62 . A shaft as claimed in  claim 60 , further comprising: 
 a bonding layer between the base member and the bent metal sheet.    
   
   
       63 . A golf club shaft as claimed in  claim 60 , wherein the polymer base member comprises a plurality of fiber reinforced resin layers.  
   
   
       64 . A golf club shaft for use with a golf club head including a hosel having a predetermined length, the golf club shaft comprising: 
 a polymer base member defining a tip end, a tip section adapted to be inserted into the hosel, a main body section, a grip section, and a butt end; and    a metal layer secured to at least a portion of the base member, defining distal and proximal ends and first and second longitudinally extending side edges, and extending around the portion of the base member such that a first portion of the metal layer overlaps a second portion of the metal layer; and    a bonding layer between the polymer base member and metal and between first and second portions of the metal layer.    
   
   
       65 . A golf club shaft as claimed in  claim 64 , wherein the base member comprises a plurality of resin layers.  
   
   
       66 . A golf club shaft as claimed in  claim 65 , wherein the plurality of resin layers comprises a plurality of fiber reinforced resin layers.  
   
   
       67 . A golf club shaft as claimed in  claim 64 , wherein the metal layer is located such that the distal end of the metal layer is less than the predetermined length from the tip end and the proximal end of the metal layer is greater than the predetermined length from the tip end.  
   
   
       68 . A golf club shaft as claimed in  claim 67 , wherein the distal end of the metal layer is substantially aligned with the tip end of the base member.  
   
   
       69 . A golf club shaft as claimed in  claim 67 , wherein the metal layer covers at least a portion of the tip section and at least a portion of the main body section.  
   
   
       70 . A golf club shaft as claimed in  claim 67 , wherein the metal layer covers the entire tip section and at least a portion of the main body section.  
   
   
       71 . A golf club shaft as claimed in  claim 64 , wherein the metal layer is secured to at least a portion of the tip section.  
   
   
       72 . A golf club shaft as claimed in  claim 71 , wherein the metal layer covers the entire tip section.  
   
   
       73 . A golf club shaft as claimed in  claim 64 , wherein the metal layer extends exactly a whole number multiple of times around the base member.  
   
   
       74 . A golf club shaft as claimed in  claim 73 , wherein the metal layer extends exactly two times around the base member.  
   
   
       75 . A golf club shaft as claimed in  claim 64 , further comprising: 
 an outer layer, including a resin and a cloth within the resin, over the metal layer.    
   
   
       76 . A golf club shaft as claimed in  claim 64 , wherein the tip section defines a first shape and the main body section defines a second shape different than the first shape.  
   
   
       77 . A golf club shaft as claimed in  claim 76 , wherein the tip section defines a cylindrical shape and the main body section defines a frusto-conical shape.  
   
   
       78 . A golf club shaft as claimed in  claim 64 , wherein the first portion of the metal layer continuously overlaps the second portion of the metal layer from the distal end to the proximal end.

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