US2012065007A1PendingUtilityA1

Badminton Racket Handle Structure for Training Purpose

Assignee: XIONG GUOBAOPriority: May 11, 2009Filed: Aug 14, 2009Published: Mar 15, 2012
Est. expiryMay 11, 2029(~2.8 yrs left)· nominal 20-yr term from priority
Inventors:Guobao Xiong
A63B 69/0017A63B 60/08A63B 2102/06A63B 69/38A63B 60/12A63B 2102/04A63B 60/10A63B 49/08
26
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Claims

Abstract

A badminton racket handle structure for training purpose. A includes a plurality of groove positions are formed on the surface of the racket handle. A little finger position grip groove at a first groove position is formed near the bottom of the surface of the racket handle. A ring finger position grip groove at a second groove position is formed upward from the bottom surface. A middle finger position grip groove at a third groove position is formed upward from the bottom surface. A thumb position grip groove for forehand stroke at a forth groove position is formed upward from the bottom surface. A forefinger position grip groove at a fifth groove position is formed upward from the bottom surface. A thumb position grip groove for backhand stroke at a sixth groove position is formed upward from the bottom of the surface of the racket handle.

Claims

exact text as granted — not AI-modified
1 . A badminton racket handle structure for training purpose, comprising:
 a head frame;   a shaft connected to the head frame at one end;   a handle connected to the other end of the shaft;   wherein a plurality of groove positions are formed on the surface of the racket handle, a little finger position grip groove at a first groove position is formed near the bottom of the surface of the racket handle; a ring finger position grip groove at a second groove position is formed upward from the bottom of the surface of the racket handle; a middle finger position grip groove at a third groove position is formed upward from the bottom of the surface of the racket handle; a thumb position grip groove for forehand stroke at a forth groove position is formed upward from the bottom of the surface of the racket handle; a forefinger position grip groove at a fifth groove position is formed upward from the bottom of the surface of the racket handle; a thumb position grip groove for backhand stroke at a sixth groove position is formed upward from the bottom of the surface of the racket handle.   
     
     
         2 . The badminton racket handle structure for training purpose of  claim 1 , wherein the surface of the racket handle comprises four adjacent surfaces successively: a large back surface, a small front surface, a large front surface and a small back surface, with four small joint side surfaces each provided between each two adjacent surfaces; the whole surface of the racket handle is formed by the large back surface, the small front surface, the large front surface and the small back surface as well as the four small joint side surfaces provided therebetween. 
     
     
         3 . The badminton racket handle structure for training purpose of  claim 2 , wherein the forefinger position grip groove is provided on an upper portion of the large back surface. 
     
     
         4 . The badminton racket handle structure for training purpose of  claim 2 , wherein the small front surface is provided in order upward from its bottom with the little finger position grip groove, the ring finger position grip groove, the middle finger position grip groove, and the forefinger position grip groove. 
     
     
         5 . The badminton racket handle structure for training purpose of  claim 2 , wherein the large front surface is provided in order upward from its bottom with the little finger position grip groove, the ring finger position grip groove, the middle finger position grip groove, the thumb position grip groove for forehand stroke and the thumb position grip groove for backhand stroke. 
     
     
         6 . The badminton racket handle structure for training purpose of  claim 2 , wherein the small back surface is provided in order upward from its bottom with the thumb position grip groove for forehand stroke and the thumb position grip groove for backhand stroke. 
     
     
         7 . The badminton racket handle structure for training purpose of  claim 1 , wherein the surface of the racket handle is provided in order upward from its bottom with the little finger position grip groove, the ring finger position grip groove, the middle finger position grip groove, the thumb position grip groove for forehand stroke, the forefinger position grip groove and the thumb position grip groove for backhand stroke.

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