US2006211525A1PendingUtilityA1

Racket frame

Assignee: PAI CHIN-DONGPriority: Mar 21, 2005Filed: Mar 16, 2006Published: Sep 21, 2006
Est. expiryMar 21, 2025(expired)· nominal 20-yr term from priority
Inventors:Chin-Dong Pai
A63B 2209/02A63B 60/54A63B 49/02A63B 49/10
43
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Claims

Abstract

A racket frame has a handle, a connecting segment and a frame. The connecting segment is inverted triangle shaped, is connected with the handle and has a throat and two shafts. The throat is connected with the proximal end of the handle. The shafts are respectively formed with the throat. The frame is hollow, is elliptical shaped, is made of aluminum alloy, is connected with the connecting segment and has a frame segment and at least one compound material tube. The frame segment has a yoke, a bottom segment and a string. The at least one compound material tube is made of carbon fiber, is attached to the bottom segment and each has a proximal end and a distal end.

Claims

exact text as granted — not AI-modified
1 . A racket frame having 
 a handle having 
 a proximal end; and  
 a distal end;  
   a connecting segment connected with the handle, and    a head hoop being hollow, elliptical shaped and connected with the connecting segment and having 
 a inner surface;  
 a string crisscrossed with the inner surface;  
 a frame segment made of aluminum alloy and connected with the connecting segment;  
 at least one compound material tube made of carbon fiber and connected with the frame segment to form the head hoop.  
   
   
   
       2 . The racket frame as claimed in  claim 1 , wherein 
 the connecting segment being inverted triangle shaped and having 
 a throat connected with the proximal end of the handle; and  
 two shafts respectively formed with the throat; and  
   the frame segment has 
 a yoke connected with the shafts of the connecting segment;  
 a bottom segment integrally connected with the yoke and having two connecting ends; and  
 a top segment having two connecting ends;  
   the head hoop comprises two compound material tubes attached between the bottom segment and the top segment, and each having 
 a proximal end attached securely with one of the connecting ends of the bottom segment; and  
 a distal end attached securely with one of the connecting ends of the top segment to connect the compound material tubes with the top segment; and  
   an adhesive layer is defined between the proximal ends and the distal ends of the compound material tubes and the corresponding connecting ends of the bottom segment and the top segment.    
   
   
       3 . The racket frame as claimed in  claim 1 , wherein 
 the connecting segment being inverted triangle shaped and having 
 a throat connected with the proximal end of the handle; and  
 two shafts respectively formed with the throat;  
   the frame segment has 
 a yoke connected with the shafts of the connecting segment; and  
 a bottom segment being U-shaped, connected with the yoke and having two connecting ends;  
   the head hoop comprises a compound material tube attached to the bottom segment, and having 
 a proximal end attached securely with one of the connecting ends of the bottom segment; and  
 a distal end attached securely with the other connecting ends of the top segment; and  
   an adhesive layer is defined between the proximal ends and the distal ends of the compound material tubes and the corresponding connecting ends of the bottom segment and the top segment.    
   
   
       4 . The racket frame as claimed in  claim 2 , wherein the proximal ends and the distal ends of the compound material tubes are respectively mounted around the connecting ends of the bottom segment and the top segment.  
   
   
       5 . The racket frame as claimed in  claim 2 , wherein the connecting ends of the bottom segment and the top segment are respectively mounted around the distal ends and the proximal ends of the compound material tubes.  
   
   
       6 . The racket frame as claimed in  claim 3 , wherein the proximal end and the distal end of the compound material tube are respectively mounted around the connecting ends of the bottom segment.  
   
   
       7 . The racket frame as claimed in  claim 3 , wherein the connecting ends of the bottom segment are respectively mounted around the distal end and the proximal end of the compound material tube.

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