Oscillating racket frame

Abstract

An oscillating racket frame includes a main frame formed as a closed annular ring with an inner circumference and an outer circumference, and a net weaved inside the inner circumference with strings. A hole is bored in the frame from the outer circumference through the inner circumference, used to accommodate an oscillating device provided with a main body having two ends pivotally combined with an inner wall of the hole, so that the body can swing in the hole against the axial line. Moreover, bored through the body are plural net holes for the strings to pass through.

1 . An oscillating racket frame comprising a main frame formed as a closed annular ring, said main frame including an inner circumference and an outer circumference, a net formed by weaving strings inside said inner circumference; and
 said oscillating racket frame characterized by having a hole in said outer circumference communicating with said inner circumference and employed to accommodate an oscillating device, said oscillating device provided with a body having two ends pivotally combined with an inner wall of said hole so that said body can swing in said hole against an axial line of said hole, said body of said oscillating device also provided with plural net holes that are bored through vertically from said outer circumference to said inner circumference for said strings to pass through.   
     
     
         2 . The oscillating racket frame as claimed in  claim 1 , wherein said hole of said main frame is formed rectangular and provided with a U-shaped groove formed at two lateral sides respectively with an opening outwardly facing to said outer circumference. 
     
     
         3 . The oscillating racket frame as claimed in  claim 2 , wherein said body of said oscillating device is provided with a column extended outward respectively from two ends corresponding to two lateral sides of said hole for being accommodated in said U-shaped groove. 
     
     
         4 . The oscillating racket frame as claimed in  claim 3 , wherein a gap is formed between two longitudinal sides of said hole and said main body of said oscillating device. 
     
     
         5 . The oscillating racket frame as claimed in  claim 4 , wherein said gap has a distance of 2˜3 mm. 
     
     
         6 . The oscillating racket frame as claimed in  claim 2 , wherein a reinforced rib is formed in said hole with two ends combined with two longitudinal sides of said hole. 
     
     
         7 . The oscillating racket frame as claimed in  claim 6 , wherein said reinforced rib is provided with an arc groove formed in a top for corresponding to a slot formed in a bottom of said body of said oscillating device.