US2011294392A1PendingUtilityA1

Return top

Assignee: LEE MAN PUNPriority: May 27, 2010Filed: Jun 29, 2010Published: Dec 1, 2011
Est. expiryMay 27, 2030(~3.8 yrs left)· nominal 20-yr term from priority
Inventors:Man Pun Lee
A63H 33/18
20
PatentIndex Score
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Cited by
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Claims

Abstract

The present invention relates to a Return Top, comprising a disc ( 10 ), wings ( 20 ) installed on a front surface of the disc ( 10 ) which are rotatable about their tail ends ( 21 ) respectively so that their front ends ( 22 ) can be throw out of the disc ( 10 ) when the disc ( 10 ) is spinning, coupling members ( 30 ) connected to the tail ends ( 21 ) of the wings ( 20 ) respectively and rotated with the tail ends ( 21 ) of the wings ( 20 ), and springs ( 40 ) each having one end being fixed on the disc ( 10 ) and the other end being connected to the coupling member ( 30 ), wherein the springs ( 40 ) are stretched and strain the wings ( 20 ) on the disc ( 10 ) through the coupling members ( 30 ). The wings can be thrown out of the disc under the action of centrifugal force and spin with the disc when the disc is spinning; when the disc does not spin, the wings are drawn back to the initial position on the disc under the action of elastic force of the springs. Therefore, the addition of wings brings various changes for the shape of the Return Top. Moreover, whether the wings fly out or not, depends on the centrifugal force resulted from the spinning speed, thus the competitiveness for throwing Return Top is enhanced, and entertainment of the Return Top is improved.

Claims

exact text as granted — not AI-modified
1 . A Return Top, comprising a disc ( 10 ), wings ( 20 ) installed on a front surface of the disc ( 10 ) which are rotatable about the wings' tail ends ( 21 ) respectively so that their front ends ( 22 ) can be throw out of the disc ( 10 ) when the disc ( 10 ) is spinning, coupling members ( 30 ) connected to the tail ends ( 21 ) of the wings ( 20 ) respectively and rotated with the tail ends ( 21 ) of the wings ( 20 ), and springs ( 40 ) each having one end being fixed on the disc ( 10 ) and the other end being connected to the coupling member ( 30 ), wherein the springs ( 40 ) are stretched and strain the wings ( 20 ) on the disc ( 10 ) through the coupling members ( 30 ). 
     
     
         2 . The Return Top according to  claim 1 , wherein the Return Top comprises three wings ( 20 ) surrounding into a circle on the front surface of the disc ( 10 ) through end to end overlap. 
     
     
         3 . The Return Top according to  claim 1 , wherein the tail end ( 21 ) of each wing ( 20 ) comprises a cubic protrusion vertical to the front surface of the disc ( 10 ), and a circular hole ( 210 ) with a diameter lager than the cross-section of the protrusion is provided on the disc ( 10 ), the said protrusion passing through the said circular hole ( 210 ) to connect the coupling member ( 30 ) on a back surface of the disc ( 10 ). 
     
     
         4 . The Return Top according to  claim 3 , wherein the coupling member ( 30 ) comprises a cubic hole ( 220 ) on one end, the protrusion of the wing ( 20 ) being inserted into the cubic hole ( 220 ) to drive the coupling member ( 30 ) rotating with the wing ( 20 ). 
     
     
         5 . The Return Top according to  claim 4 , wherein the other end of the coupling member ( 30 ) is connected with the spring ( 40 ), and extension rate of the spring ( 40 ) is increased or decreased while the tail end ( 21 ) of the wing ( 20 ) rotates the coupling member ( 30 ). 
     
     
         6 . The Return Top according to  claim 1 , wherein the disc ( 10 ) comprises a top shell and a bottom shell assembled together, the wings ( 20 ) are arranged on a front surface of the top shell, and the coupling members ( 30 ) and the springs ( 40 ) are arranged in a cavity enclosed by the top shell and the bottom shell. 
     
     
         7 . The Return Top according to  claim 1 , wherein the Return Top further comprises LEDs (R 1 ) which can be lighted when the disc ( 10 ) spins and the front ends ( 22 ) of the wings ( 20 ) are thrown out of the disc ( 10 ).

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